{"id":4002,"date":"2026-10-08T08:56:27","date_gmt":"2026-10-08T08:56:27","guid":{"rendered":"https:\/\/nbaem.com\/?p=4002"},"modified":"2026-10-03T14:58:46","modified_gmt":"2026-10-03T14:58:46","slug":"high-performance-axial-flux-magnets-for-motors","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/high-performance-axial-flux-magnets-for-motors\/","title":{"rendered":"Nam ch\u00e2m xuy\u00ean t\u00e2m hi\u1ec7u su\u1ea5t cao cho \u0111\u1ed9ng c\u01a1"},"content":{"rendered":"<p>B\u1ea1n c\u00f3 \u0111ang t\u00ecm c\u00e1ch t\u1ed1i \u0111a h\u00f3a m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 ti\u1ebfp theo c\u1ee7a m\u00ecnh?<\/p>\n<p>L\u1ef1a ch\u1ecdn \u0111\u00fang <strong>nam ch\u00e2m lu\u1ed3ng d\u1ecdc tr\u1ee5c<\/strong> c\u00f3 th\u1ec3 t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t ho\u00e0n to\u00e0n.<\/p>\n<p>T\u1eeb xe \u0111i\u1ec7n \u0111\u1ebfn h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, nh\u1eefng th\u00e0nh ph\u1ea7n nh\u1ecf g\u1ecdn n\u00e0y \u0111ang c\u00e1ch m\u1ea1ng h\u00f3a h\u1ec7 truy\u1ec1n \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i b\u1eb1ng c\u00e1ch cung c\u1ea5p m\u00f4-men xo\u1eafn v\u01b0\u1ee3t tr\u1ed9i \u1edf ch\u1ec9 m\u1ed9t ph\u1ea7n kh\u00f4ng gian. Nh\u01b0ng vi\u1ec7c ch\u1ecdn \u0111\u00fang lo\u1ea1i v\u1eadt li\u1ec7u t\u1eeb t\u00ednh, l\u1edbp ph\u1ee7 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u01a1n gi\u1ea3n.<\/p>\n<p>Trong h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd h\u1ecdc exactly how <strong>nam ch\u00e2m lu\u1ed3ng d\u1ecdc tr\u1ee5c<\/strong> ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1ch ch\u1ecdn c\u1ea5u h\u00ecnh l\u00fd t\u01b0\u1edfng \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/p>\n<p>H\u00e3y b\u1eaft \u0111\u1ea7u ngay th\u00f4i.<\/p>\n<h2>Hi\u1ec3u r\u00f5 v\u1ec1 nam ch\u00e2m Flux D\u1ecdc tr\u1ee5c trong c\u00e1c topology \u0111\u1ed9ng c\u01a1<\/h2>\n<p>\u0110\u1ed9ng c\u01a1 nam ch\u00e2m v\u0129nh c\u1eedu flux d\u1ecdc tr\u1ee5c (AFPM) cung c\u1ea5p t\u1ef7 l\u1ec7 c\u00f4ng su\u1ea5t tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng v\u01b0\u1ee3t tr\u1ed9i trong h\u1ec7 truy\u1ec1n \u0111\u1ed9ng \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i. B\u1eb1ng c\u00e1ch \u0111\u1ecbnh h\u01b0\u1edbng lu\u1ed3ng t\u1eeb song song v\u1edbi tr\u1ee5c quay thay v\u00ec vu\u00f4ng g\u00f3c v\u1edbi n\u00f3, c\u00e1c nam ch\u00e2m flux d\u1ecdc tr\u1ee5c m\u1edf kh\u00f3a nh\u1eefng l\u1ee3i th\u1ebf k\u1ef9 thu\u1eadt \u0111\u00e1ng k\u1ec3 so v\u1edbi ki\u1ebfn tr\u00fac lu\u1ed3ng x\u1ea1 chu\u1ea9n radial.<\/p>\n<h3>\u0110\u1ed9ng c\u01a1 Flux D\u1ecdc tr\u1ee5c so v\u1edbi Flux Radial: C\u01a1 h\u1ecdc m\u1ea1ch t\u1eeb<\/h3>\n<p>Trong c\u00e1c m\u00e1y c\u00f3 lu\u1ed3ng radial th\u00f4ng th\u01b0\u1eddng, c\u00e1c \u0111\u01b0\u1eddng t\u1eeb \u0111i qua b\u00e1n k\u00ednh qua khe h\u1edf kh\u00f4ng kh\u00ed h\u00ecnh tr\u1ee5. C\u00e1c topology flux d\u1ecdc tr\u1ee5c \u0111\u1ecbnh tuy\u1ebfn m\u1ea1ch t\u1eeb qua m\u1ed9t giao di\u1ec7n ph\u1eb3ng, h\u00ecnh \u0111\u0129a:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>H\u01b0\u1edbng \u0111\u01b0\u1eddng d\u1eabn Flux:<\/strong> Lu\u1ed3ng t\u1eeb di chuy\u1ec3n theo tr\u1ee5c qua khe h\u1edf kh\u00f4ng kh\u00ed ph\u1eb3ng, song song v\u1edbi tr\u1ee5c r\u00f4to.<\/li>\n<li><strong>Di\u1ec7n t\u00edch t\u1eeb ho\u1ea1t \u0111\u1ed9ng:<\/strong> Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ho\u1ea1t \u0111\u1ed9ng t\u1ef7 l\u1ec7 v\u1edbi \u0111\u01b0\u1eddng k\u00ednh \u0111\u0129a, t\u1ed1i \u0111a h\u00f3a s\u1ef1 t\u01b0\u01a1ng t\u00e1c \u0111i\u1ec7n t\u1eeb tr\u1ef1c ti\u1ebfp t\u1ea1i m\u00e9p ngo\u00e0i.<\/li>\n<li><strong>T\u1ed5n th\u1ea5t l\u00f5i:<\/strong> \u0110\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng ng\u1eafn h\u01a1n gi\u1ea3m y\u00eau c\u1ea7u l\u1edbp s\u1eaft \u0111\u1ed1i l\u01b0u v\u00e0 t\u1ed1i thi\u1ec3u h\u00f3a t\u1ed5n th\u1ea5t s\u1eaft l\u00f5i.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>M\u1eadt \u0111\u1ed9 m\u00f4men xo\u1eafn v\u00e0 l\u1ee3i th\u1ebf h\u00ecnh d\u1ea1ng g\u1ecdn nh\u1eb9<\/h3>\n<p>B\u1eb1ng c\u00e1ch t\u00e1c \u0111\u1ed9ng m\u00f4-men t\u1ea1i b\u00e1n k\u00ednh trung b\u00ecnh l\u1edbn h\u01a1n, nam ch\u00e2m l\u1ef1c t\u1eeb tr\u1ee5c \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn v\u01b0\u1ee3t tr\u1ed9i <strong>t\u1ed1i \u01b0u h\u00f3a m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn<\/strong> trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f3 kh\u00f4ng gian gi\u1edbi h\u1ea1n:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>H\u00ecnh d\u1ea1ng pancake:<\/strong> Gi\u1ea3m chi\u1ec1u d\u00e0i c\u1ef1c k\u1ef3 m\u1ea1nh m\u1ebd t\u1ea1o n\u00ean profile si\u00eau m\u1ecfng l\u00fd t\u01b0\u1edfng cho \u0111\u00f3ng g\u00f3i g\u1ecdn nh\u1eb9.<\/li>\n<li><strong>T\u1ec9 l\u1ec7 m\u00f4-men xo\u1eafn tr\u00ean tr\u1ecdng l\u01b0\u1ee3ng cao:<\/strong> Cung c\u1ea5p t\u1edbi 30\u201340% m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn cao h\u01a1n so v\u1edbi c\u1ea5u h\u00ecnhRadial ti\u00eau chu\u1ea9n khi s\u1eed d\u1ee5ng c\u00f9ng th\u1ec3 t\u00edch v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh vi\u1ec5n.<\/li>\n<li><strong>Hi\u1ec7u qu\u1ea3 v\u1eadt li\u1ec7u:<\/strong> V\u1ecb tr\u00ed \u0111\u1eb7t nam ch\u00e2m m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c d\u1ecdc theo \u0111\u0129a r\u00f4to t\u1ed1i \u0111a h\u00f3a \u0111\u1ea7u ra tr\u00ean m\u1ed7i kilogram v\u1eadt li\u1ec7u \u0111\u1ea5t hi\u1ebfm.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u0110\u1ed9ng l\u1ef1c h\u1ecdc kh\u00f4ng kh\u00ed ph\u1eb3ng trong c\u00e1c c\u1ea5u h\u00ecnh AFPM<\/h3>\n<p>Duy tr\u00ec kho\u1ea3ng kh\u00f4ng kh\u00ed ph\u1eb3ng \u0111\u1ed3ng nh\u1ea5t l\u00e0 then ch\u1ed1t \u0111\u1ec3 qu\u1ea3n l\u00fd l\u1ef1c t\u1eeb axially v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 cao nh\u1ea5t tr\u00ean c\u00e1c b\u1ed1 tr\u00ed m\u00e1y kh\u00e1c nhau:<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">C\u1ea5u h\u00ecnh M\u1ea1ng l\u01b0\u1edbi<\/th>\n<th style=\"text-align: left;\">\u0110\u1ed9ng l\u1ef1c M\u1ea1ch t\u1eeb<\/th>\n<th style=\"text-align: left;\">L\u1ee3i th\u1ebf K\u1ef9 thu\u1eadt Ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>M\u1ed9t stator, m\u1ed9t rotor<\/strong><\/td>\n<td style=\"text-align: left;\">L\u1ef1c t\u1eeb xuy\u00ean t\u00e2m b\u1ea5t \u0111\u1ed1i x\u1ee9ng qua m\u1ed9t khe kh\u00f4ng kh\u00ed ph\u1eb3ng<\/td>\n<td style=\"text-align: left;\">Thi\u1ebft k\u1ebf si\u00eau m\u1ecfng cho h\u1ec7 th\u1ed1ng nh\u1eb9, ti\u1ebft ki\u1ec7m chi ph\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Hai rotor, m\u1ed9t stator (TORUS)<\/strong><\/td>\n<td style=\"text-align: left;\">C\u00e1c l\u1ef1c d\u1ecdc hai b\u00ean \u0111\u1ed1i x\u1ee9ng c\u00e2n b\u1eb1ng t\u1ea3i bearing b\u00ean trong<\/td>\n<td style=\"text-align: left;\">S\u1ea3n sinh m\u00f4-men xo\u1eafn cao m\u00e0 kh\u00f4ng y\u00eau c\u1ea7u \u0111\u1ea7u kh\u1edfi \u0111\u1ed9ng n\u1eb7ng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Hai stator, m\u1ed9t rotor (AFIR)<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u0129a rotor quay gi\u1eefa hai stator d\u00e2y qu\u1ea5n ho\u1ea1t \u0111\u1ed9ng<\/td>\n<td style=\"text-align: left;\">T\u1ed1i \u01b0u h\u00f3a c\u00f4ng su\u1ea5t v\u1edbi gi\u1ea3m moment qu\u00e1n t\u00ednh rotor<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u0110\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i thi\u1ebft k\u1ebf m\u1ed7i m\u1ea3ng magnet \u0111\u1ec3 duy tr\u00ec ph\u00e2n b\u1ed1 t\u1eeb th\u00f4ng \u0111\u1ed3ng nh\u1ea5t tr\u00ean to\u00e0n khe ph\u1eb3ng, lo\u1ea1i b\u1ecf bi\u1ebfn thi\u00ean t\u1eeb t\u1ea1i ch\u1ed7 v\u00e0 \u1ed5n \u0111\u1ecbnh \u0111\u1ed9ng h\u1ecdc rotor d\u01b0\u1edbi t\u1ea3i \u0111i\u1ec7n \u0111\u1ec9nh \u0111i\u1ec3m.<\/p>\n<h2>C\u00e1c h\u00ecnh h\u1ecdc Nam ch\u00e2m v\u00e0 C\u1ea5u h\u00ecnh M\u1ea3ng Rotor quan tr\u1ecdng<\/h2>\n<p>Thu \u0111\u01b0\u1ee3c m\u00f4-men xo\u1eafn t\u1ed1i \u0111a t\u1eeb \u0111\u1ed9ng c\u01a1 d\u00f2ng axial b\u1eb1ng c\u00e1ch \u0111\u1ecbnh h\u00ecnh tr\u01b0\u1eddng t\u1eeb xuy\u00ean qua m\u1ed9t rotor \u0111\u0129a ph\u1eb3ng. C\u00e1c kh\u1ed1i h\u00ecnh ch\u1eef nh\u1eadt ti\u00eau chu\u1ea9n t\u1ea1o ph\u00e2n b\u1ed1 tr\u01b0\u1eddng kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u trong kho\u1ea3ng kh\u00f4ng kh\u00ed h\u00ecnh v\u00f2ng tr\u00f2n, d\u1eabn t\u1edbi kh\u00f4ng gian b\u1ecb l\u00e3ng ph\u00ed v\u00e0 t\u1ed5n th\u1ea5t ph\u1ee5. Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf c\u00e1c h\u1ed3 s\u01a1 h\u00ecnh h\u1ecdc t\u00f9y ch\u1ec9nh v\u00e0 c\u00e1c topologie m\u1ea3ng \u0111\u1ec3 t\u1ed1i \u01b0u m\u1ecdi milimet di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<h3>H\u1ed3 s\u01a1 theo Sectors, Wedges v\u00e0 Trapesoid<\/h3>\n<p>Rotor axial flux \u0111\u00f2i h\u1ecfi c\u00e1c h\u00ecnh d\u1ea1ng phi chu\u1ea9n \u0111\u1ec3 ph\u1ea3n \u00e1nh s\u1ef1 m\u1edf r\u1ed9ng theo b\u00e1n k\u00ednh c\u1ee7a r\u0103ng stator. Ch\u00fang t\u00f4i gia c\u00f4ng <strong>nam ch\u00e2m \u0111\u1ed9ng c\u01a1 h\u00ecnh wedge<\/strong>, c\u00e1c sectors, v\u00e0 c\u00e1c \u0111o\u1ea1n h\u00ecnh trapezoid \u0111\u1ec3 kh\u1edbp v\u1edbi ch\u00e2n \u0111\u1ebf \u0111\u0129a tr\u00f2n:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>H\u00ecnh d\u1ea1ng wedge\/sector:<\/strong> Kh\u1edbp v\u1edbi g\u00f3c b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean c\u1ee7a \u0111\u0129a rotor, cung c\u1ea5p t\u1ea3i t\u1eeb \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 t\u1ed1i \u0111a h\u00f3a ph\u1ea1m vi ti\u1ebfp x\u00fac c\u1ef1c.<\/li>\n<li><strong>H\u1ed3 s\u01a1 h\u00ecnh trapezoid:<\/strong> Cung c\u1ea5p m\u1ed9t th\u1ecfa hi\u1ec7p c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u01a1n gi\u1ea3n h\u00f3a s\u1ea3n xu\u1ea5t v\u00e0 t\u1ed1i \u01b0u h\u00f3a bao ph\u1ee7 tr\u01b0\u1eddng t\u1eeb tr\u00ean pitch c\u1ef1c.<\/li>\n<li><strong>\u0110\u1ed3ng nh\u1ea5t k\u00edch th\u01b0\u1edbc:<\/strong> Dung sai m\u00e9p ch\u1eb7t ch\u1ebd \u0111\u1ea3m b\u1ea3o ph\u00e2n b\u1ed1 t\u1eeb th\u00f4ng gi\u1ed1ng nhau \u1edf m\u1ecdi c\u1ef1c, lo\u1ea1i b\u1ecf l\u1ef1c t\u1eeb kh\u00f4ng c\u00e2n b\u1eb1ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Lo\u1ea1i h\u1ed3 s\u01a1<\/th>\n<th style=\"text-align: left;\">Hi\u1ec7u su\u1ea5t Bao ph\u1ee7 C\u1ef1c<\/th>\n<th style=\"text-align: left;\">\u0110\u1ed9 ph\u1ee9c t\u1ea1p trong S\u1ea3n xu\u1ea5t<\/th>\n<th style=\"text-align: left;\">Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Wedge \/ True Sector<\/strong><\/td>\n<td style=\"text-align: left;\">Cao (&gt;95%)<\/td>\n<td style=\"text-align: left;\">Cao (Gia c\u00f4ng b\u1eb1ng d\u00e2y EDM\/ gia c\u00f4ng ch\u00ednh x\u00e1c)<\/td>\n<td style=\"text-align: left;\">Hi\u1ec7u n\u0103ng cao EV &amp; H\u00e0ng kh\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>H\u00ecnh thang<\/strong><\/td>\n<td style=\"text-align: left;\">Trung b\u00ecnh \u0111\u1ebfn Cao (85\u201390%)<\/td>\n<td style=\"text-align: left;\">V\u1eeba ph\u1ea3i<\/td>\n<td style=\"text-align: left;\">Drive &amp; T\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ng\u00e3 ch\u1eb7n \u0111\u01b0\u1ee3c ph\u00e2n \u0111o\u1ea1n<\/strong><\/td>\n<td style=\"text-align: left;\">Cao (&gt;95%)<\/td>\n<td style=\"text-align: left;\">Cao (L\u1eafp r\u00e1p nhi\u1ec1u m\u1ea3nh)<\/td>\n<td style=\"text-align: left;\">R\u00f4tors t\u1ed1c \u0111\u1ed9 cao, t\u1ed5n th\u1ea5t th\u1ea5p<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Qu\u1ea3n l\u00fd ph\u00e1t x\u1ea1 t\u1eeb tr\u01b0\u1eddng ph\u1ee5 thu\u1ed9c b\u00e1n k\u00ednh<\/h3>\n<p>V\u00ec v\u1eadn t\u1ed1c tuy\u1ebfn t\u00ednh t\u0103ng t\u1eeb \u0111\u01b0\u1eddng k\u00ednh trong (ID) \u0111\u1ebfn \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD), \u0111\u1ed9ng l\u1ef1c h\u1ecdc flux t\u1eeb tr\u01b0\u1eddng thay \u0111\u1ed5i d\u1ecdc theo chi\u1ec1u d\u00e0i nam ch\u00e2m.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Th\u00e1ch th\u1ee9c \u0110\u01b0\u1eddng k\u00ednh trong (ID):<\/strong> Kho\u1ea3ng c\u00e1ch c\u1ed9t h\u1eb9p \u1edf v\u00f2ng trong l\u00e0m t\u0103ng l\u01b0\u1ee3ng flux r\u00f2 r\u1ec9 t\u1eeb c\u1ed9t sang c\u1ed9t, l\u00e0m gi\u1ea3m flux l\u00e0m vi\u1ec7c c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng.<\/li>\n<li><strong>Fringing \u0110\u01b0\u1eddng k\u00ednh ngo\u00e0i (OD):<\/strong> V\u1eadn t\u1ed1c xung quanh cao h\u01a1n v\u00e0 khe c\u1ed9t r\u1ed9ng h\u01a1n g\u00e2y cong flux \u1edf m\u00e9p ngo\u00e0i.<\/li>\n<li><strong>Gi\u1ea3i ph\u00e1p c\u1ee7a ch\u00fang t\u00f4i:<\/strong> Ch\u00fang t\u00f4i t\u1ed1i \u01b0u t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m chi\u1ec1u r\u1ed9ng nam ch\u00e2m gi\u1eefa ID v\u00e0 OD v\u00e0 \u00e1p d\u1ee5ng profiling m\u00e9p t\u00f9y ch\u1ec9nh \u0111\u1ec3 duy tr\u00ec m\u1eadt \u0111\u1ed9 flux kh\u00f4ng kh\u00ed ph\u1eb3ng \u0111\u1ed3ng nh\u1ea5t tr\u00ean to\u00e0n b\u00e1n k\u00ednh ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>T\u00edch h\u1ee3p M\u1ea3ng Halbach cho t\u1eadp trung flux<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ea3n d\u1ef1ng si\u00eau nh\u1ecf g\u1ecdn v\u00e0 nh\u1eb9, ch\u00fang t\u00f4i t\u00edch h\u1ee3p <strong>c\u1ea5u h\u00ecnh m\u1ea3ng Halbach<\/strong> v\u00e0o rotor t\u1eeb trong tr\u1ee5c. B\u1eb1ng c\u00e1ch \u0111\u1ecbnh h\u01b0\u1edbng ph\u01b0\u01a1ng h\u01b0\u1edbng t\u1eeb h\u00f3a c\u1ee7a c\u00e1c \u0111o\u1ea1n k\u1ec1 nhau theo m\u1ed9t m\u1eabu li\u00ean t\u1ee5c, tr\u01b0\u1eddng t\u1eeb \u0111\u01b0\u1ee3c t\u1eadp trung m\u1ea1nh \u1edf ph\u00eda \u0111\u1ed1i di\u1ec7n stator trong khi h\u1ea7u nh\u01b0 b\u1ecb tri\u1ec7t ti\u00eau ph\u00eda sau.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Lo\u1ea1i b\u1ecf S\u1eaft \u1ede Rotor:<\/strong> Gi\u1ea3m kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 m\u01b0u l\u1ef1c c\u1ee7a rotor m\u1ed9t c\u00e1ch \u0111\u00e1ng k\u1ec3.<\/li>\n<li><strong>Ph\u00e2n b\u1ed1 Tr\u01b0\u1eddng Sinusoidal:<\/strong> T\u1ea1o ra s\u00f3ng t\u1eeb th\u00f4ng khe h\u1edf kh\u00f4ng kh\u00ed s\u1ea1ch h\u01a1n, gi\u1ea3m m\u00e9o h\u00e0i.<\/li>\n<li><strong>T\u1ed1i \u01b0u H\u00ecnh h\u1ecdc M\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn:<\/strong> \u0110\u1ea9y m\u1eadt \u0111\u1ed9 t\u1eeb th\u00f4ng khe h\u1edf kh\u00f4ng kh\u00ed l\u00ean cao h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n nam ch\u00e2m d\u00e0y h\u01a1n.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Thi\u1ebft k\u1ebf bo g\u00f3c v\u00e0 l\u1ec7ch b\u01b0\u1edbc \u0111\u1ec3 gi\u1ea3m m\u00f4-men k\u1eb9t<\/h3>\n<p>M\u00f4-men k\u1eb9t v\u00e0 l\u0103n xoay m\u00f4-men khi\u1ebfn rung \u0111\u1ed9ng v\u00e0 ti\u1ebfng \u1ed3n \u00e2m thanh trong c\u00e1c h\u1ec7 truy\u1ec1n \u0111\u1ed9ng t\u1eeb trong tr\u1ee5c. Ch\u00fang t\u00f4i gi\u1ea3m thi\u1ec3u c\u00e1c t\u00e1c \u0111\u1ed9ng ph\u1ee5 n\u00e0y \u1edf c\u1ea5p \u0111\u1ed9 nam ch\u00e2m b\u1eb1ng hai k\u1ef9 thu\u1eadt h\u00ecnh h\u1ecdc nh\u1eafm m\u1ee5c ti\u00eau:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>C\u00e1c c\u1ea1nh bo g\u00f3c:<\/strong> Thu h\u1eb9p c\u1ea1nh tr\u01b0\u1edbc v\u00e0 c\u1ea1nh sau c\u1ee7a m\u1ed7i \u0111o\u1ea1n nam ch\u00e2m l\u00e0m d\u1ecbu s\u1ef1 chuy\u1ec3n \u0111\u1ed5i \u0111\u1ed9t ng\u1ed9t c\u1ee7a \u0111\u1ed9 xuy\u00ean t\u1eeb khi nam ch\u00e2m v\u00e0o v\u00e0 ra kh\u1edbp r\u0103ng stator.<\/li>\n<li><strong>L\u1eafp r\u00e1p nam ch\u00e2m l\u1ec7ch b\u01b0\u1edbc:<\/strong> Vi\u1ec7c x\u1ebfp ch\u1ed3ng c\u00e1c kh\u1ed1i nam ch\u00e2m ph\u00e2n \u0111o\u1ea1n r\u1ed1i theo tr\u1ee5c v\u00e2n gi\u00fap m\u00f4 ph\u1ecfng s\u1ef1 l\u1ec7ch li\u00ean t\u1ee5c. \u0110i\u1ec1u n\u00e0y ph\u00e1 v\u1ee1 c\u00e1c ph\u1ed5 h\u00e0i h\u00f2a cogging m\u00e0 kh\u00f4ng c\u1ea7n khe stator l\u1ec7ch ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec7t cho nam ch\u00e2m c\u00f3 d\u00f2ng ch\u1ea3y tr\u1ee5c<\/h2>\n<p>C\u00e1c \u0111\u1ed9ng c\u01a1 c\u00f3 d\u00f2ng ch\u1ea3y tr\u1ee5c t\u1ea1o ra c\u00f4ng su\u1ea5t l\u1edbn trong m\u1ed9t profile v\u1eadt l\u00fd r\u1ea5t m\u1ecfng. V\u00ec l\u00e0m m\u00e1t ph\u1eadn rotor \u0111\u0129a nh\u1ecf l\u00e0 th\u00e1ch th\u1ee9c, vi\u1ec7c ch\u1ecdn v\u1eadt li\u1ec7u nam ch\u00e2m v\u0129nh vi\u1ec5n ph\u00f9 h\u1ee3p quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp gi\u1edbi h\u1ea1n m\u00f4-men xo\u1eafn li\u00ean t\u1ee5c v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t.<\/p>\n<h3>So s\u00e1nh gi\u1eefa Sintered NdFeB v\u00e0 SmCo<\/h3>\n<p>Khi thi\u1ebft k\u1ebf nam ch\u00e2m c\u00f3 d\u00f2ng ch\u1ea3y tr\u1ee5c, ch\u00fang t\u00f4i c\u00e2n nh\u1eafc ch\u1ee7 y\u1ebfu s\u1ee9c m\u1ea1nh t\u1eeb t\u00ednh th\u00f4 s\u01a1 so v\u1edbi nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c li\u00ean t\u1ee5c t\u1ed1i \u0111a:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>NdFeB Siner (Nd-Fe-B)<\/strong> Cung c\u1ea5p remanence (Br) cao nh\u1ea5t v\u00e0 n\u0103ng l\u01b0\u1ee3ng t\u1ed1i \u0111a. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn chu\u1ea9n c\u1ee7a ch\u00fang t\u00f4i cho truy\u1ec1n \u0111\u1ed9ng \u00f4 t\u00f4 v\u00e0 robotics n\u01a1i m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn \u0111\u1ec9nh trong m\u1ed9t ph\u1ea1m vi gi\u1edbi h\u1ea1n l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/li>\n<li><strong>SmCo (Samarium Cobalt):<\/strong> Cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cao \u1edf nhi\u1ec7t \u0111\u1ed9 n\u00eau, \u1ed5n \u0111\u1ecbnh \u1edf nhi\u1ec7t \u0111\u1ed9 cao. Ch\u00fang t\u00f4i tri\u1ec3n khai SmCo trong c\u00e1c h\u1ec7 th\u1ed1ng h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5 \u0111\u1eb7c bi\u1ec7t ho\u1eb7c ch\u1ebf \u0111\u1ed9 li\u00ean t\u1ee5c n\u01a1i l\u00e0m m\u00e1t rotor kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Tham s\u1ed1<\/th>\n<th style=\"text-align: left;\">NdFeB Siner (v\u1edbi GBD)<\/th>\n<th style=\"text-align: left;\">Cobalt Samari (SmCo)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>L\u01b0u t\u1eeb d\u01b0 (Br)<\/strong><\/td>\n<td style=\"text-align: left;\">Si\u00eau Cao<\/td>\n<td style=\"text-align: left;\">V\u1eeba ph\u1ea3i \u0111\u1ebfn cao<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>L\u1ef1c kh\u00e1ng t\u1eeb n\u1ed9i t\u1ea1i (Hcj)<\/strong><\/td>\n<td style=\"text-align: left;\">T\u1eeb Cao \u0111\u1ebfn Si\u00eau Cao<\/td>\n<td style=\"text-align: left;\">R\u1ea5t cao<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>R\u1ee7i ro m\u1ea5t t\u1eeb t\u1ea1i t\u1ea3i \u0111\u1ec9nh<\/strong><\/td>\n<td style=\"text-align: left;\">Th\u1ea5p (Ph\u00e2n lo\u1ea1i t\u00f9y c\u1ea5p \u0111\u1ed9)<\/td>\n<td style=\"text-align: left;\">R\u1ea5t th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m\u00f2n<\/strong><\/td>\n<td style=\"text-align: left;\">L\u1edbp ph\u1ee7 b\u1eaft bu\u1ed9c<\/td>\n<td style=\"text-align: left;\">T\u1ed1i thi\u1ec3u cho \u0111\u1ebfn None<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u1ed4n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 khu\u1ebfch t\u00e1n bi\u00ean grain (GBD)<\/h3>\n<p>Nh\u1eefng c\u00fa s\u1ed1c t\u1ea3i n\u1eb7ng g\u00e2y ra t\u1eeb tr\u01b0\u1eddng ng\u01b0\u1ee3c stator cao c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t qu\u00e1 tr\u00ecnh m\u1ea5t t\u1eeb t\u00ednh kh\u00f4ng th\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c n\u1ebfu \u0111\u1ed9 t\u1eeb h\u00f3a c\u1ee7a nam ch\u00e2m gi\u1ea3m \u1edf nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh cao.<\/p>\n<p>\u0110\u1ec3 v\u01b0\u1ee3t qua \u0111i\u1ec1u n\u00e0y m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1, nh\u00f3m c\u1ee7a ch\u00fang t\u00f4i s\u1eed d\u1ee5ng <strong>Khu\u1ebfch t\u00e1n bi\u00ean grain (GBD)<\/strong> c\u00f4ng ngh\u1ec7:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>V\u1ecb tr\u00ed \u0111\u1ea5t hi\u1ebfm n\u1eb7ng m\u1ee5c ti\u00eau:<\/strong> Dysprosium (Dy) ho\u1eb7c Terbium (Tb) \u0111\u01b0\u1ee3c khu\u1ebfch t\u00e1n tuy\u1ec7t \u0111\u1ed1i d\u1ecdc theo bi\u00ean grain thay v\u00ec h\u1ee3p kim kh\u1eafp th\u00e2n nam ch\u00e2m.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng t\u1eeb h\u00f3a cao h\u01a1n:<\/strong> T\u1eeb h\u00f3a n\u1ed9i t\u1ea1i (Hcj) t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3, n\u00e2ng ng\u01b0\u1ee1ng m\u1ea5t t\u1eeb t\u00ednh \u1edf nhi\u1ec7t \u0111\u1ed9 cao.<\/li>\n<li><strong>D\u01b0\u1ee1ng gi\u1eef t\u1eeb d\u01b0:<\/strong> Remanence (Br) v\u1eabn \u1edf m\u1ee9c cao, duy tr\u00ec \u0111\u1ea7u ra t\u1eeb tr\u01b0\u1eddng rotor t\u1ed1i \u0111a m\u00e0 kh\u00f4ng g\u1eb7p suy gi\u1ea3m t\u1eeb t\u00ednh nh\u01b0 \u1edf c\u00e1c c\u1ea5p \u0111\u1ed9 nhi\u1ec7t cao th\u00f4ng th\u01b0\u1eddng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>C\u00e2n b\u1eb1ng Br v\u00e0 Hcj d\u01b0\u1edbi t\u1ea3i tr\u1ecdng n\u1eb7ng<\/h3>\n<p>Ng\u0103n ng\u1eeba m\u1ea5t t\u1eeb t\u00ednh \u1edf nhi\u1ec7t \u0111\u1ed9 y\u00eau c\u1ea7u t\u00ecm \u0111i\u1ec3m c\u00e2n b\u1eb1ng ch\u00ednh x\u00e1c gi\u1eefa l\u01b0u l\u01b0\u1ee3ng t\u1eeb (Br) v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ea5t t\u1eeb (Hcj). \u0110\u0129a rotor d\u00f2ng t\u1eeb l\u01b0u tr\u1eef tr\u1ee5c ch\u1ee7 \u0111\u1ea1o tr\u1ea3i qua c\u00e1c tr\u01b0\u1eddng t\u1eeb \u0111\u1ed1i l\u1eadp m\u1ea1nh trong gia t\u1ed1c nhanh ho\u1eb7c phanh ph\u1ee5c h\u1ed3i. B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p c\u00e1c c\u1ea5p \u0111\u1ed9 cao <a href=\"https:\/\/nbaem.com\/vi\/microrobot-and-neodymium-magnets\/\">nam ch\u00e2m neodymium<\/a> v\u1edbi x\u1eed l\u00fd GBD, ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1eddng t\u1ea3i v\u1eadn h\u00e0nh v\u1eabn \u1edf tr\u00ean an to\u00e0n so v\u1edbi \u0111i\u1ec3m knee c\u1ee7a \u0111\u01b0\u1eddng cong kh\u1eed t\u1eeb ngay c\u1ea3 trong chu k\u1ef3 d\u00f2ng peak.<\/p>\n<h2>Gi\u1ea3m thi\u1ec3u ti\u00eau hao d\u00f2ng xo\u00e1y trong nam ch\u00e2m t\u1eeb tr\u01b0\u1eddng xuy\u00ean t\u00e2m (Axial Flux)<\/h2>\n<p>T\u1ea7n s\u1ed1 v\u1eadn h\u00e0nh cao v\u00e0 c\u00e1c h\u00e0m s\u00f3ng khe stator t\u1ea1o ra c\u00e1c bi\u1ebfn thi\u00ean t\u1eeb th\u00f4ng nhanh b\u00ean trong rotor. V\u00ec NdFeB nung sintered l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n, c\u00e1c tr\u01b0\u1eddng \u0111\u1ed1i x\u1ee9ng n\u00e0y sinh ra c\u00e1c d\u00f2ng xo\u00e1y c\u1ee5c b\u1ed9. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd, s\u1ebd g\u00e2y ra <a href=\"https:\/\/nbaem.com\/vi\/eddy-current-loss\/\">ti\u00eau hao d\u00f2ng xo\u00e1y<\/a> d\u1eabn \u0111\u1ebfn l\u00e0m n\u00f3ng rotor nhanh ch\u00f3ng, hi\u1ec7u su\u1ea5t v\u1eadn h\u00e0nh gi\u1ea3m s\u00fat v\u00e0 m\u1ea5t t\u1eeb t\u1eeb t\u1eeb t\u1eeb t\u1eeb r\u1ea5t s\u1edbm do nhi\u1ec7t trong \u0111\u1ed9ng c\u01a1 t\u1eeb tr\u01b0\u1eddng d\u1ecdc tr\u1ee5c.<\/p>\n<h3>Chi\u1ebfn l\u01b0\u1ee3c Ph\u00e2n \u0111o\u1ea1n Nam ch\u00e2m<\/h3>\n<p>\u0110\u1ec3 c\u1eaft gi\u1ea3m c\u00e1c t\u1ed5n th\u1ea5t parazit t\u1ea1i ngu\u1ed3n, \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i s\u1eed d\u1ee5ng vi\u1ec7c c\u1eaft ch\u00ednh x\u00e1c \u0111\u1ec3 chia nam ch\u00e2m d\u1ecdc tr\u1ee5c r\u1eafn th\u00e0nh c\u00e1c ph\u1ea7n r\u1eddi r\u1ea1c, \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n. Vi\u1ec7c c\u1eaft t\u00e1ch ph\u00e1 v\u1ee1 \u0111\u01b0\u1eddng d\u1eabn \u0111i\u1ec7n li\u00ean t\u1ee5c, l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 di\u1ec7n t\u00edch v\u00f2ng l\u1eb7p n\u01a1i sinh ra d\u00f2ng xo\u00e1y t\u1eeb tr\u01b0\u1eddng.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Ph\u00e2n \u0111o\u1ea1n theo b\u00e1n k\u00ednh:<\/strong> C\u1eaft nam ch\u00e2m d\u1ecdc theo b\u00e1n k\u00ednh. C\u1ea5u h\u00ecnh n\u00e0y ch\u1eb7n tr\u1ef1c ti\u1ebfp d\u00f2ng xo\u00e1y ngo\u1ea1i vi g\u00e2y ra b\u1edfi c\u00e1c h\u00e0m l\u01b0\u1ee3ng c\u01a1 b\u1ea3n c\u1ee7a stato.<\/li>\n<li><strong>Ph\u00e2n \u0111o\u1ea1n theo chu vi:<\/strong> Chia nam ch\u00e2m theo chi\u1ec1u r\u1ed9ng v\u00f2ng cung, nh\u1eafm v\u00e0o s\u1ef1 bi\u1ebfn thi\u00ean t\u1eeb tr\u01b0\u1eddng d\u1ecdc v\u00e0 ngang x\u1ea3y ra \u1edf \u0111\u1ec9nh r\u0103ng.<\/li>\n<li><strong>Ph\u00e2n \u0111o\u1ea1n l\u01b0\u1edbi 2D:<\/strong> K\u1ebft h\u1ee3p c\u1ea3 hai c\u1eaft theo b\u00e1n k\u00ednh v\u00e0 chu vi cho c\u00e1c thi\u1ebft k\u1ebf t\u1ed1c \u0111\u1ed9 cao c\u1ef1c \u0111oan, n\u01a1i c\u00e1c h\u00e0m t\u1eeb xuy\u00ean h\u01b0\u1edbng \u0111a chi\u1ec1u sinh ra nhi\u1ec7t \u0111\u1ed9 nghi\u00eam tr\u1ecdng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>C\u00e1ch ly v\u00e0 \u0110\u1ea3m b\u1ea3o C\u1ea5u tr\u00fac c\u1ee7a Ph\u00e2n \u0111o\u1ea1n d\u01b0\u1edbi RPM cao<\/h3>\n<p>Ph\u00e2n chia nam ch\u00e2m l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a b\u00e0i to\u00e1n; m\u1ed7i ph\u00e2n \u0111o\u1ea1n ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n v\u1ec1 \u0111i\u1ec7n trong khi duy tr\u00ec t\u00ednh c\u1ee9ng c\u1ea5u tr\u00fac v\u1eefng ch\u1eafc ch\u1ed1ng l\u1ea1i l\u1ef1c ly t\u00e2m kh\u1ed5ng l\u1ed3.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Th\u00f4ng s\u1ed1 Thi\u1ebft k\u1ebf<\/th>\n<th style=\"text-align: left;\">Gi\u1ea3i ph\u00e1p K\u1ef9 thu\u1eadt<\/th>\n<th style=\"text-align: left;\">L\u1ee3i \u00edch Ch\u1ee9c n\u0103ng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>C\u00e1ch nhi\u1ec7t gi\u1eefa c\u00e1c ph\u00e2n \u0111o\u1ea1n<\/strong><\/td>\n<td style=\"text-align: left;\">epoxy ho\u1eb7c phim keo chuy\u00ean d\u1ee5ng c\u00f3 \u0111i\u1ec7n th\u1ea9m cao (&lt; 50 \u03bcm \u0111\u1ed9 d\u00e0y)<\/td>\n<td style=\"text-align: left;\">Ch\u1eb7n d\u00f2ng \u0111i\u1ec7n gi\u1eefa c\u00e1c ph\u00e2n \u0111o\u1ea1n v\u1edbi t\u1ed5n th\u1ea5t th\u1ec3 t\u00edch t\u1eeb tr\u01b0\u1eddng t\u1ed1i thi\u1ec3u<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>\u0110\u1ed9 b\u1ec1n li\u00ean k\u1ebft<\/strong><\/td>\n<td style=\"text-align: left;\">Nh\u1ef1a k\u1ebft c\u1ea5u ch\u1ecbu l\u1ef1c c\u00f4ng su\u1ea5t cao, ch\u1ecbu shear cao, ch\u1ecbu nhi\u1ec7t<\/td>\n<td style=\"text-align: left;\">Ng\u0103n ng\u1eeba t\u00e1ch ph\u00e2n \u0111o\u1ea1n v\u00e0 r\u1ed7ng l\u1edbp gi\u1eefa trong t\u1ea3i rung \u0111\u1ed9ng l\u1edbn<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Gi\u1eef ch\u00e2n quay c\u1ee7a ch\u00ednh:<\/strong><\/td>\n<td style=\"text-align: left;\">\u1ed0ng che c\u1ea1nh rotor ho\u1eb7c v\u00f2ng b\u1eb1ng s\u1ee3i carbon<\/td>\n<td style=\"text-align: left;\">Ch\u1ed1ng l\u1ea1i l\u1ef1c h\u01b0\u1edbng t\u00e2m ra ngo\u00e0i tr\u00ean chu k\u1ef3 l\u00e0m vi\u1ec7c t\u1ea3i cao quay nhanh<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ph\u00e1t t\u00e1n nhi\u1ec7t<\/strong><\/td>\n<td style=\"text-align: left;\">M\u00e0ng k\u1ebft d\u00ednh c\u00f3 d\u1eabn nhi\u1ec7t<\/td>\n<td style=\"text-align: left;\">M\u1edf k\u00eanh hi\u1ec7u qu\u1ea3 nhi\u1ec7t d\u01b0 kh\u1ecfi c\u00e1c ph\u00e2n \u0111o\u1ea1n t\u1eeb magnet v\u00e0o b\u1ed9 mang rotor<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>B\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p b\u1ed1 tr\u00ed ph\u00e2n \u0111o\u1ea1n ch\u00ednh x\u00e1c v\u1edbi li\u00ean k\u1ebft c\u1ea5u tr\u00fac \u0111\u1ed9 b\u1ec1n cao, ch\u00fang t\u00f4i cung c\u1ea5p c\u00e1c b\u1ed9 gh\u00e9p t\u1eeb tr\u01b0\u1eddng xuy\u00ean t\u00e2m v\u1edbi hi\u1ec7u su\u1ea5t \u0111i\u1ec7n t\u1eeb cao trong khi v\u1eadn h\u00e0nh m\u00e1t h\u01a1n \u0111\u00e1ng k\u1ec3 d\u01b0\u1edbi t\u1ea3i tr\u1ecdng li\u00ean t\u1ee5c l\u1edbn.<\/p>\n<h2>\u0110\u1ed9 l\u1ec7ch s\u1ea3n xu\u1ea5t, l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n<p>S\u1ea3n xu\u1ea5t hi\u1ec7u su\u1ea5t cao <strong>nam ch\u00e2m lu\u1ed3ng d\u1ecdc tr\u1ee5c<\/strong> \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c h\u00ecnh h\u1ecdc nghi\u00eam ng\u1eb7t v\u00e0 x\u00e1c th\u1ef1c t\u1eeb t\u00ednh nghi\u00eam ng\u1eb7t. V\u00ec c\u00e1c ki\u1ebfn tr\u00fac \u0111\u1ed9ng c\u01a1 t\u1eeb tr\u01b0\u1eddng xuy\u00ean t\u00e2m c\u00f3 khe h\u1edf kh\u00f4ng gian ph\u1eb3ng r\u1ea5t h\u1eb9p, ngay c\u1ea3 sai l\u1ec7ch \u1edf \u0111\u1ed9 d\u00e0y nam ch\u00e2m ho\u1eb7c \u0111\u1ed9 c\u0103n ch\u1ec9nh \u1edf m\u1ee9c vi m\u00f4 c\u0169ng c\u00f3 th\u1ec3 g\u00e2y l\u1ef1c t\u1eeb kh\u00f4ng c\u00e2n b\u1eb1ng, ti\u1ebfng \u1ed3n acoustics qu\u00e1 m\u1ee9c v\u00e0 gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/p>\n<h3>Gia c\u00f4ng ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u1ed3ng nh\u1ea5t khe h\u1edf kh\u00f4ng kh\u00ed<\/h3>\n<p>Duy tr\u00ec k\u00edch th\u01b0\u1edbc khe h\u1edf kh\u00f4ng kh\u00ed \u0111\u1ed3ng nh\u1ea5t tr\u00ean c\u00e1c \u0111\u0129a rotor \u0111\u01b0\u1eddng k\u00ednh l\u1edbn ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o \u0111\u1ed9 ch\u00ednh x\u00e1c h\u00ecnh h\u1ecdc. Trong c\u00e1c c\u1ea5u h\u00ecnh xuy\u00ean t\u00e2m b\u1ec1 m\u1eb7t - chia s\u1ebb c\u00e1c nguy\u00ean l\u00fd \u0111\u01b0\u1ee3c th\u1ea5y trong <a href=\"https:\/\/nbaem.com\/vi\/difference-between-surface-permanent-magnet-and-interior-permanent-magnet\/\">kh\u00e1c bi\u1ec7t gi\u1eefa nam ch\u00e2m v\u0129nh c\u1eedu b\u1ec1 m\u1eb7t v\u00e0 nam ch\u00e2m v\u0129nh c\u1eedu b\u00ean trong<\/a> c\u00e1c b\u1ed1 tr\u00ed\u2014qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t c\u1ee7a ch\u00fang t\u00f4i t\u1eadp trung v\u00e0o \u0111\u1ed9 l\u1ec7ch c\u01a1 h\u1ecdc ch\u1eb7t ch\u1ebd:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>\u0110\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ph\u1eb3ng:<\/strong> M\u00e0i hai m\u1eb7t ch\u00ednh x\u00e1c duy tr\u00ec \u0111\u1ed9 l\u1ec7ch d\u00e0y trong ph\u1ea1m vi \u00b10.03 mm \u0111\u1ebfn \u00b10.05 mm, ng\u0103n ch\u1eb7n bi\u1ebfn thi\u00ean khe h\u1edf kh\u00f4ng kh\u00ed t\u1ea1i ch\u1ed7.<\/li>\n<li><strong>\u0110\u1ed3ng nh\u1ea5t song song:<\/strong> \u0110\u1ed9 l\u1ec7ch song song ch\u1eb7t ch\u1ebd tr\u00ean c\u00e1c m\u1eb7t n\u00eam v\u00e0 m\u1eb7t c\u1eaft lo\u1ea1i b\u1ecf ph\u00e2n b\u1ed1 l\u1ef1c kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u againstthe stator face.<\/li>\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c g\u00f3c c\u1ea1nh:<\/strong> C\u1eaft g\u00f3c hai b\u00ean \u0111i\u1ec1u khi\u1ec3n \u0111\u1ea3m b\u1ea3o c\u00e1c ph\u1ea7n nam ch\u00e2m k\u1ec1 nhau ng\u1ed3i kh\u00edt trong c\u00e1c v\u00f2ng rotor c\u00f3 s\u1ed1 c\u1ef1c cao.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u0110\u1ed9 l\u1ec7ch g\u00f3c t\u1eeb t\u00ednh v\u00e0 ki\u1ec3m tra tr\u01b0\u1eddng t\u1eeb<\/h3>\n<p>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u01a1 h\u1ecdc ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng b\u1eb1ng s\u1ef1 c\u0103n ch\u1ec9nh t\u1eeb t\u00ednh ch\u00ednh x\u00e1c. B\u1ea5t k\u1ef3 l\u1ec7ch h\u01b0\u1edbng n\u00e0o tr\u00ean tr\u1ee5c \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u1ec1u l\u00e0m bi\u1ebfn d\u1ea1ng tr\u01b0\u1eddng t\u1eeb ho\u1ea1t \u0111\u1ed9ng v\u00e0 t\u1ea1o ra moment cogging kh\u00f4ng mong mu\u1ed1n.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Ki\u1ec3m so\u00e1t g\u00f3c t\u1eeb:<\/strong> Ch\u00fang t\u00f4i gi\u1edbi h\u1ea1n \u0111\u1ed9 l\u1ec7ch g\u00f3c kh\u1edfi t\u1ea1o t\u1eeb t\u1eeb h\u00f3a magnetization trong ph\u1ea1m vi \u00b11,5\u00b0 \u0111\u1ebfn \u00b12,0\u00b0 so v\u1edbi tr\u1ee5c thi\u1ebft k\u1ebf.<\/li>\n<li><strong>Ki\u1ec3m tra Tr\u01b0\u1eddng \u0110a c\u1ef1c:<\/strong> C\u1ea3m bi\u1ebfn Hall \u0111a k\u00eanh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao qu\u00e9t c\u00e1c m\u1ea3ng \u0111a c\u1ef1c \u0111\u1ec3 x\u00e1c minh s\u1ef1 \u0111\u1ed3ng nh\u1ea5t kho\u1ea3ng c\u00e1ch c\u1ef1c, ph\u00e2n b\u1ed1 tr\u01b0\u1eddng sinusoidal v\u00e0 \u0111i\u1ec3m v\u01b0\u1ee3t giao gi\u1eefa c\u1ef1c.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>L\u1edbp ph\u1ee7 B\u1ec1 m\u1eb7t B\u1ea3o v\u1ec7 cho M\u00f4i tr\u01b0\u1eddng Kh\u1eafc nghi\u1ec7t<\/h3>\n<p>C\u00e1c \u0111\u1ed9ng c\u01a1 d\u00f2ng ch\u1ea3y xuy\u00ean t\u00e2m th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng k\u00edn, nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c l\u00e0m m\u00e1t b\u1eb1ng ch\u1ea5t l\u1ecfng, n\u01a1i c\u00e1c lo\u1ea1i Nd c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 \u0103n m\u1ea3n ch\u1ed1ng \u0103n m\u00f2n m\u1ea1nh m\u1ebd.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Lo\u1ea1i l\u1edbp ph\u1ee7<\/th>\n<th style=\"text-align: left;\">\u0110\u1ed9 d\u00e0y \u0111i\u1ec3n h\u00ecnh<\/th>\n<th style=\"text-align: left;\">C\u00e1c \u0111\u1eb7c t\u00ednh ch\u00ednh<\/th>\n<th style=\"text-align: left;\">M\u00f4i tr\u01b0\u1eddng L\u00fd t\u01b0\u1edfng<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Ni-Cu-Ni (Ba l\u1edbp Nickel)<\/strong><\/td>\n<td style=\"text-align: left;\">10\u201325 \u03bcm<\/td>\n<td style=\"text-align: left;\">\u0110\u1ed9 c\u1ee9ng c\u01a1 h\u1ecdc cao, kh\u1ea3 n\u0103ng m\u00e0i m\u00f2n tuy\u1ec7t v\u1eddi<\/td>\n<td style=\"text-align: left;\">C\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng c\u00f4ng nghi\u1ec7p ti\u00eau chu\u1ea9n, h\u1ed9p enclosure kh\u00f4<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>L\u1edbp ph\u1ee7 Epoxy<\/strong><\/td>\n<td style=\"text-align: left;\">15\u201330 \u03bcm<\/td>\n<td style=\"text-align: left;\">Kh\u00e1ng x\u1ed1c mu\u1ed1i cao, c\u00e1ch \u0111i\u1ec7n \u0111i\u1ec7n<\/td>\n<td style=\"text-align: left;\">C\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng tr\u00ean bi\u1ec3n, ti\u1ebfp x\u00fac \u1ea9m ho\u1eb7c ti\u1ebfp x\u00fac v\u1edbi h\u00f3a ch\u1ea5t<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>K\u1ebdm (Zn)<\/strong><\/td>\n<td style=\"text-align: left;\">5\u201315 \u03bcm<\/td>\n<td style=\"text-align: left;\">B\u1ea3o v\u1ec7 hy sinh c\u00f3 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/td>\n<td style=\"text-align: left;\">C\u00e1c b\u1ea3ng l\u1eafp gh\u00e9p \u00f4 t\u00f4 k\u00edn c\u00f3 chi ph\u00ed nh\u1ea1y<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Ni + Epoxy Hai l\u1edbp<\/strong><\/td>\n<td style=\"text-align: left;\">20\u201340 \u03bcm<\/td>\n<td style=\"text-align: left;\">L\u1edbp ch\u1eafn \u0103n m\u00f2n t\u1ed1i \u0111a k\u00e8m kh\u1ea3 n\u0103ng ch\u1ecbu va \u0111\u1eadp<\/td>\n<td style=\"text-align: left;\">C\u1ee5m \u0111\u1ed9ng c\u01a1 trong l\u00e0nh b\u00e1nh xe v\u00e0 \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi kh\u1eafc nghi\u1ec7t<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>\u0110i\u1ec1u tra t\u1eeb tr\u01b0\u1eddng Helmholtz v\u00e0 x\u00e1c nh\u1eadn b\u1ec1 m\u1eb7t m\u1eadt \u0111\u1ed9 flux<\/h3>\n<p>M\u1ecdi l\u00f4 s\u1ea3n xu\u1ea5t \u0111\u1ec1u tr\u1ea3i qua \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng t\u1eeb t\u00ednh to\u00e0n di\u1ec7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng ch\u00fang t\u00f4i <strong>nam ch\u00e2m lu\u1ed3ng d\u1ecdc tr\u1ee5c<\/strong> \u0111\u00e1p \u1ee9ng c\u00e1c tham s\u1ed1 m\u00f4 h\u00ecnh \u0111\u1ed9ng c\u01a1 ch\u00ednh x\u00e1c:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Ki\u1ec3m tra Helmholtz<\/strong> \u0110o l\u01b0\u1eddng t\u1ed5ng moment dipole t\u1eeb ($M$) tr\u00ean c\u00e1c l\u00f4 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a s\u00e1p t\u1eeb t\u1eeb piece n\u00e0y sang piece kh\u00e1c.<\/li>\n<li><strong>L\u1eadp b\u1ea3n \u0111\u1ed3 m\u1eadt \u0111\u1ed9 t\u1eeb 3D:<\/strong> C\u00e1c gi\u00e1 \u0111\u1ee1 qu\u00e9t Cartesian t\u1ef1 \u0111\u1ed9ng \u0111o m\u1eadt \u0111\u1ed9 t\u1eeb b\u1ec1 m\u1eb7t ($B_r$) tr\u00ean to\u00e0n b\u1ed9 profile n\u00eam, x\u00e1c nh\u1eadn m\u1eadt \u0111\u1ed9 t\u1eeb v\u1eabn \u0111\u1ed3ng nh\u1ea5t t\u1eeb inner \u0111\u1ebfn outer radius.<\/li>\n<li><strong>X\u00e1c nh\u1eadn h\u1ebft t\u1eeb:<\/strong> Ki\u1ec3m tra tr\u01b0\u1eddng xung k\u00edch x\u00e1c minh l\u1ef1c kh\u00e1ng t\u1eeb n\u1ed9i t\u1ea1i ($H_{cj}$), \u0111\u1ea3m b\u1ea3o gi\u1eef t\u1eeb t\u00ednh \u0111\u1ea7y \u0111\u1ee7 d\u01b0\u1edbi t\u1ea3i \u0111\u1ec9nh v\u00e0 nhi\u1ec7t \u0111\u1ed9 t\u0103ng.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ch\u00ednh cho nam ch\u00e2m t\u0129nh t\u1eeb tr\u1ee5c d\u1ecdc<\/h2>\n<p>Ki\u1ec3u motor nam ch\u00e2m v permanent (AFPM) tr\u1ee5c d\u1ecdc cung c\u1ea5p m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn h\u00e0ng \u0111\u1ea7u ng\u00e0nh trong k\u00edch th\u01b0\u1edbc xuy\u00ean tr\u1ee5c h\u1eb9p. Ch\u00fang t\u00f4i thi\u1ebft k\u1ebf nam ch\u00e2m tr\u1ee5c d\u1ecdc t\u00f9y ch\u1ec9nh \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u \u0111i\u1ec7n t\u1eeb v\u00e0 nhi\u1ec7t v\u00e0 c\u01a1 h\u1ecdc kh\u1eaft khe c\u1ee7a h\u1ec7 truy\u1ec1n \u0111\u1ed9ng v\u00e0 m\u00e1y m\u00f3c th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/p>\n<h3>Xe \u0111i\u1ec7n (EV\/HEV) v\u00e0 h\u1ec7 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 trong v\u00e0nh xe nh\u1ecf g\u1ecdn<\/h3>\n<p>Gi\u1edbi h\u1ea1n kh\u00f4ng gian \u1edf c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng t\u00edch h\u1ee3p v\u00e0 g\u1eafn trong hub y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn t\u1ed1i \u0111a tr\u00ean m\u1ed7i kilogram.<br \/>\n<strong>Thi\u1ebft k\u1ebf nam ch\u00e2m cho \u0111\u1ed9ng c\u01a1 trong v\u00e0nh xe:<\/strong> Rotor ph\u1eb3ng, h\u00ecnh \u0111\u0129a ph\u00f9 h\u1ee3p tr\u1ef1c ti\u1ebfp b\u00ean trong hub b\u00e1nh xe m\u00e0 kh\u00f4ng c\u1ea7n h\u1ed9p gi\u1ea3m t\u1ea3i c\u1ed3ng k\u1ec1nh.<br \/>\n<strong>Hi\u1ec7u su\u1ea5t h\u1ec7 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ec9nh cao:<\/strong> M\u1ea3ng nam ch\u00e2m v\u00e1t h\u00ecnh tam gi\u00e1c cung c\u1ea5p gia t\u1ed1c nhanh v\u00e0 hi\u1ec7u su\u1ea5t \u1edf v\u1eadn t\u1ed1c cao li\u00ean t\u1ee5c.<br \/>\n<strong>B\u1ea3o v\u1ec7 ch\u1ed1ng m\u1ea5t t\u1eeb t\u1eeb nhi\u1ec7t cao:<\/strong> C\u00e1c t\u1ed5 h\u1ee3p nam ch\u00e2m ch\u1ecbu \u0111\u01b0\u1ee3c chu tr\u00ecnh nhi\u1ec7t g\u1eaft gao sinh ra trong phanh ph\u1ee5c h\u1ed3i v\u00e0 d\u1ed1c nghi\u00eang.<\/p>\n<h3>\u0110\u1ed9ng l\u1ef1c h\u1ecdc cho h\u00e0ng kh\u00f4ng \u0111i\u1ec7n, drone v\u00e0 h\u1ec7 truy\u1ec1n \u0111\u1ed9ng eVTOL<\/h3>\n<p>H\u00e0ng kh\u00f4ng y\u00eau c\u1ea7u t\u1ed1i \u01b0u h\u00f3a tr\u1ecdng l\u01b0\u1ee3ng tr\u00ean c\u00f4ng su\u1ea5t \u1edf m\u1ee9c c\u1ef1c \u0111oan v\u00e0 \u0111\u1ed9 tin c\u1eady tuy\u1ec7t \u0111\u1ed1i.<br \/>\n<strong>M\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t \u1edf \u0111\u1ed9 cao l\u1edbn:<\/strong> Thi\u1ebft k\u1ebf rotor nh\u1ecf g\u1ecdn t\u1ed1i \u01b0u h\u00f3a kh\u1ed1i l\u01b0\u1ee3ng to\u00e0n b\u1ed9 c\u1ee7a m\u00e1y bay, m\u1edf r\u1ed9ng ph\u1ea1m vi bay.<br \/>\n<strong>Qu\u00e1n t\u00ednh rotor th\u1ea5p:<\/strong> Cho ph\u00e9p \u0111\u00e1p \u1ee9ng ga t\u1ee9c th\u00ec cho \u1ed5n \u0111\u1ecbnh \u0111a rotor v\u00e0 neo tr\u00f4i ch\u00ednh x\u00e1c.<br \/>\n<strong>Output T\u00edn hi\u1ec7u Flux T\u1ed1i \u0111a:<\/strong> \u0110\u00e1nh gi\u00e1 hi\u1ec7u su\u1ea5t v\u1eadt li\u1ec7u\u2014nh\u01b0 hi\u1ec3u <a href=\"https:\/\/nbaem.com\/vi\/what-is-the-difference-between-n52-and-n55-magnets\/\">s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa nam ch\u00e2m N52 v\u00e0 N55 l\u00e0 g\u00ec<\/a>\u2014gi\u00fap c\u00e1c k\u1ef9 s\u01b0 \u0111\u1ed9ng l\u1ef1c h\u1ecdc r\u00fat ra l\u1ef1c \u0111\u1ea9y li\u00ean t\u1ee5c t\u1ed1i \u0111a tr\u00ean m\u1ed7i gram kh\u1ed1i l\u01b0\u1ee3ng rotor.<\/p>\n<h3>C\u00e1c kh\u1edbp Robotics, T\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p v\u00e0 AGV<\/h3>\n<p>C\u00e1c xe d\u1eabn \u0111\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng (AGV) g\u1ecdn nh\u1eb9 v\u00e0 c\u00e1nh tay robot h\u1ee3p t\u00e1c y\u00eau c\u1ea7u c\u00e1c b\u1ed9 truy\u1ec1n \u0111\u1ed9ng d\u1ea1ng pancake m\u1ea1nh m\u1ebd.<br \/>\n<strong>D\u1ea1ng Si\u00eau M\u1ecfng:<\/strong> V\u1eeba kh\u00edt tr\u1ef1c ti\u1ebfp b\u00ean trong b\u1ed9 truy\u1ec1n \u0111\u1ed9ng quay, kh\u1edbp robot v\u00e0 b\u1ed9 truy\u1ec1n \u0111\u1ed9ng v\u00f4 c\u1ea5p servo.<br \/>\n<strong>H\u1ed3 s\u01a1 chuy\u1ec3n \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0:<\/strong> H\u00ecnh h\u1ecdc nam ch\u00e2m ch\u00ednh x\u00e1c l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 m\u00f4 men cogging cho \u0111\u1ecbnh v\u1ecb \u1ed5n \u0111\u1ecbnh, ch\u00ednh x\u00e1c cao.<br \/>\n<strong>\u0110\u00e1p \u1ee9ng \u0111\u1ed9ng l\u1ef1c h\u1ecdc cao:<\/strong> Cung c\u1ea5p moment kh\u1edfi \u0111\u1ed9ng ngay l\u1eadp t\u1ee9c cho c\u00e1c chu tr\u00ecnh t\u1ef1 \u0111\u1ed9ng h\u00f3a nh\u1ea5p-nh\u1ea3 nhanh.<\/p>\n<h3>Tuabin gi\u00f3 Tr\u1ef1c ti\u1ebfp v\u00e0 M\u00e1y ph\u00e1t N\u0103ng l\u01b0\u1ee3ng T\u00e1i t\u1ea1o<\/h3>\n<p>C\u00e1c m\u00e1y ph\u00e1t c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn, v\u00f2ng quay ch\u1eadm \u0111\u01b0\u1ee3c h\u01b0\u1edfng l\u1ee3i t\u1eeb b\u1ed1 tr\u00ed ph\u1eb3ng c\u1ee7a c\u00e1c m\u1ea1ch t\u1eeb tr\u1ee5c d\u1ecdc.<br \/>\n<strong>\u0110\u1ed9 tin c\u1eady kh\u00f4ng b\u00e1nh r\u0103ng:<\/strong> H\u1ec7 th\u1ed1ng truy\u1ec1n \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp lo\u1ea1i b\u1ecf b\u1ea3o tr\u00ec h\u1ed9p s\u1ed1 c\u01a1 kh\u00ed trong c\u00e1c installation gi\u00f3 v\u00e0 th\u1ee7y \u0111i\u1ec7n \u1edf nh\u1eefng n\u01a1i xa.<br \/>\n<strong>M\u1edf r\u1ed9ng m\u00f4-\u0111un t\u1eeb tr\u01b0\u1eddng \u0111a stator:<\/strong> C\u1ea5u h\u00ecnh hai rotor, m\u1ed9t stator l\u00e0m \u0111\u01a1n gi\u1ea3n l\u1eafp r\u00e1p m\u00e1y ph\u00e1t trong khi t\u1ed1i \u0111a h\u00f3a li\u00ean k\u1ebft th\u00f4ng flux t\u1eeb.<br \/>\n<strong>B\u1ea3o v\u1ec7 ch\u1ed1ng \u0103n m corrosion:<\/strong> C\u00e1c l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 ti\u00ean ti\u1ebfn b\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi \u0111\u1ed9 \u1ea9m, phun mu\u1ed1i v\u00e0 th\u1eddi ti\u1ebft ngo\u00e0i tr\u1eddi kh\u1eafc nghi\u1ec7t.<\/p>\n<h2>Danh s\u00e1ch ki\u1ec3m tra k\u1ef9 thu\u1eadt \u0111\u1ec3 ch\u1ec9 \u0111\u1ecbnh nam ch\u00e2m tru\u0323 axiale t\u00f9y ch\u1ec9nh<\/h2>\n<p>Vi\u1ec7c thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 \u0111\u0129a hi\u1ec7u su\u1ea5t cao \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c tuy\u1ec7t \u0111\u1ed1i trong giai \u0111o\u1ea1n \u0111\u1ecbnh ngh\u0129a nam ch\u00e2m. Khi thi\u1ebft k\u1ebf <a href=\"https:\/\/nbaem.com\/vi\/axial-flux-motor-magnet\/\">gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tru\u0323 axiale<\/a> \u0111i\u1ec1u ch\u1ec9nh, nh\u00f3m c\u1ee7a ch\u00fang t\u00f4i s\u1eed d\u1ee5ng m\u1ed9t danh s\u00e1ch ki\u1ec3m tra chu\u1ea9n \u0111\u1ec3 c\u0103n ch\u1ec9nh m\u00f4 h\u00ecnh t\u1eeb, ranh gi\u1edbi nhi\u1ec7t v\u00e0 kh\u1ea3 thi s\u1ea3n xu\u1ea5t tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u gia c\u00f4ng.<\/p>\n<h3>K\u00edch th\u01b0\u1edbc l\u00f5i, dung sai h\u00ecnh h\u1ecdc v\u00e0 \u0110i\u1ec3m l\u00e0m vi\u1ec7c (Pc)<\/h3>\n<p>C\u00e1c topology tr\u1ee5c X tr\u1ee5c \u0111\u1ee9ng c\u00f3 khe h\u1edf kh\u00f4ng gian qu\u00e3ng kh\u00f4ng kh\u00ed h\u1eb9p, \u1edf \u0111\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c h\u00ecnh h\u1ecdc quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp cho ra m\u00f4-men xo\u1eafn v\u00e0 h\u00e0nh vi cogging.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>B\u00e1n k\u00ednh ngo\u00e0i v\u00e0 trong ($R_o$, $R_i$):<\/strong> X\u00e1c \u0111\u1ecbnh v\u00f9ng t\u1eeb ho\u1ea1t \u0111\u1ed9ng v\u00e0 c\u00e1nh tay m\u00f4-men xo\u1eafn c\u01a1 b\u1ea3n.<\/li>\n<li><strong>G\u00f3c chock v\u00e0 \u0110\u1ed9 d\u00e0y ($T$):<\/strong> G\u00f3c v\u00f9ng tr\u00f2n ph\u00f9 h\u1ee3p y\u00eau c\u1ea7u ph\u00e2n b\u1ed5 tr\u1ee5c, c\u00f9ng v\u1edbi \u0111\u1ed9 dung sai \u0111\u1ed9 d\u00e0y ch\u00ednh x\u00e1c (th\u01b0\u1eddng trong ph\u1ea1m vi \u00b1 0,05 mm) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed3ng \u0111\u1ec1u kho\u1ea3ng h\u1edf kh\u00ed.<\/li>\n<li><strong>\u0110\u1ed9 ph\u1eb3ng v\u00e0 Song song:<\/strong> Gi\u1edbi h\u1ea1n b\u1ec1 m\u1eb7t nghi\u00eam ng\u1eb7t (\u0111\u1ebfn \u2264 0,03 mm) \u0111\u1ec3 tr\u00e1nh va ch\u1ea1m c\u01a1 h\u1ecdc v\u1edbi \u0111\u0129a quay.<\/li>\n<li><strong>H\u1ec7 s\u1ed1 xuy\u00ean (Pc \/ \u0110i\u1ec3m l\u00e0m vi\u1ec7c):<\/strong> \u0110\u01b0\u1ee3c t\u00ednh to\u00e1n d\u01b0\u1edbi tr\u01b0\u1eddng kh\u00f4ng kh\u00ed xuy\u00ean l\u1ea5p \u0111\u1ea7y \u1edf ch\u1ebf \u0111\u1ed9 v\u1eadn h\u00e0nh \u0111\u1ea7y \u0111\u1ee7 nh\u1eb1m \u0111\u1ea3m b\u1ea3o flux ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng ti\u1ebfp c\u1eadn \u0111i\u1ec3m knee kh\u1eed t\u1eeb t\u1ea1i d\u00f2ng \u0111i\u1ec7n \u0111\u1ec9nh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Danh m\u1ee5c th\u00f4ng s\u1ed1<\/th>\n<th style=\"text-align: left;\">Th\u00f4ng s\u1ed1 thi\u1ebft k\u1ebf v\u00e0 Metrics<\/th>\n<th style=\"text-align: left;\">T\u00e1c \u0111\u1ed9ng k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>H\u00ecnh h\u1ecdc<\/strong><\/td>\n<td style=\"text-align: left;\">B\u00e1n k\u00ednh trong\/ngo\u1ea1i, \u0110\u1ed9 r\u1ed9ng d\u00e2y cung, \u0110\u1ed9 d\u00e0y<\/td>\n<td style=\"text-align: left;\">Ph\u00e2n b\u1ed1 tr\u01b0\u1eddng kh\u00f4ng kh\u00ed gi\u1eefa khe h\u1edf, dao \u0111\u1ed9ng m\u00f4-men xo\u1eafn<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Gi\u1edbi h\u1ea1n dung sai<\/strong><\/td>\n<td style=\"text-align: left;\">\u00b1 0.03 mm \u0111\u1ebfn \u00b1 0.05 mm, \u0110\u1ed9 ph\u1eb3ng \u2264 0.03 mm<\/td>\n<td style=\"text-align: left;\">C\u00e2n b\u1eb1ng r\u00f4to, ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng h\u00e0m l\u01b0\u1ee3ng h\u00e0m<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>M\u1ea1ch t\u1eeb<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u01b0\u1eddng t\u1ea3i v\u1eadn h\u00e0nh ($P_c \u2265 1.5 \u2013 2.0$)<\/td>\n<td style=\"text-align: left;\">Kh\u00e1ng ch\u1ecbu s\u1ef1 s\u1ee5p \u0111\u1ed5 tr\u01b0\u1eddng d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111\u1ee9ng y\u00ean<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>B\u1ed1 tr\u00ed ph\u00e2n \u0111o\u1ea1n, X\u1eed l\u00fd b\u1ec1 m\u1eb7t v\u00e0 Gi\u1edbi h\u1ea1n nhi\u1ec7t \u0111\u1ed9<\/h3>\n<p>Qu\u1ea3n l\u00fd t\u1ed5n th\u1ea5t rotor \u1edf t\u1ea7n s\u1ed1 cao v\u00e0 m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh kh\u1eafc nghi\u1ec7t \u0111\u00f2i h\u1ecfi l\u1ef1a ch\u1ecdn l\u1edbp ph\u1ee7 v\u00e0 ph\u00e2n \u0111o\u1ea1n c\u00f3 ch\u1ee7 \u00fd.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Laminations &amp; M\u00f4 h\u00ecnh Ph\u00e2n \u0111o\u1ea1n:<\/strong> C\u1eaft d\u1ecdc ho\u1eb7c c\u1eaft v\u00f2ng tr\u00f2n tr\u00ean m\u1ed9t k\u1ebft c\u1ea5u nam ch\u00e2m \u0111\u01b0\u1ee3c ph\u00e2n \u0111o\u1ea1n gi\u00fap gi\u1ea3m \u0111\u01b0\u1eddng d\u1eabn c\u1ee7a d\u00f2ng xo\u00e1y, l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 nhi\u1ec7t \u0111\u1ed9 l\u00f5i rotor.<\/li>\n<li><strong>C\u00e1ch \u0111i\u1ec7n &amp; Ch\u1ea5t k\u1ebft d\u00ednh:<\/strong> G\u1ed1i gi\u1eefa epoxy c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 d\u1eabn nhi\u1ec7t cao ch\u1ecbu \u0111\u01b0\u1ee3c l\u1ef1c c\u1eaft li\u00ean t\u1ee5c v\u00e0 chu k\u1ef3 nhi\u1ec7t.<\/li>\n<li><strong>B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t:<\/strong> Nhi\u1ec1u l\u1edbp Ni (Ni-Cu-Ni), epoxy catod, ho\u1eb7c c\u00e1c qu\u00e1 tr\u00ecnh passivation \u0111\u1eb7c bi\u1ec7t ng\u0103n oxy h\u00f3a trong v\u1ecf \u0111\u1ed9ng c\u01a1 k\u00edn ho\u1eb7c k\u00edn m\u1ed9t ph\u1ea7n.<\/li>\n<li><strong>L\u1ef1a ch\u1ecdn l\u1edbp Nhi\u1ec7t:<\/strong> C\u00e1c lo\u1ea1i NdFeB ch\u1ea5t sinter (nh\u01b0 SH, UH, ho\u1eb7c EH) s\u1eed d\u1ee5ng Ph\u01b0\u01a1ng ph\u00e1p Diffusion Bi\u00ean grain (GBD) duy tr\u00ec \u0111\u1ed9 c\u1ee9ng n\u1ed9i t\u1ea1i cao ($H_{cj}$) tr\u00ean c\u00e1c ph\u1ea1m vi l\u00e0m vi\u1ec7c t\u1eeb 150 \u00b0C \u0111\u1ebfn 200 \u00b0C.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>D\u00f2ng prototype sang D\u1ee5ng c\u1ee5 S\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t<\/h3>\n<p>Chuy\u1ec3n t\u1eeb prototype ch\u1ee9c n\u0103ng nhanh sang s\u1ea3n xu\u1ea5t quy m\u00f4 l\u1edbn \u0111\u00f2i h\u1ecfi c\u00e1c qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Wire-EDM vs. D\u1ee5ng c\u1ee5 \u0110a Bu\u1ed3ng d\u00e0nh ri\u00eang:<\/strong> Gia c\u00f4ng b\u1eb1ng ph\u00f3ng \u0111i\u1ec7n b\u1eb1ng d\u00e2y x\u1eed l\u00fd c\u00e1c m\u1eabu khu v\u1ef1c v\u1edbi l\u01b0\u1ee3ng nh\u1ecf, trong khi khu\u00f4n sinter g\u1ea7n d\u1ea1ng r\u00e3nh r\u0103ng ti\u1ebft ki\u1ec7m ph\u1ebf th\u1ea3i gia c\u00f4ng khi tri\u1ec3n khai h\u00e0ng lo\u1ea1t.<\/li>\n<li><strong>Ch\u1ee9c n\u0103ng H\u01b0\u1edbng d\u1eabn t\u1eeb magnet:<\/strong> Thi\u1ebft b\u1ecb \u0111\u1ecbnh h\u00ecnh t\u1eeb \u0111a c\u1ef1c ho\u1eb7c t\u1eeb h\u00f3a l\u1ec7ch g\u00f3c \u0111\u1eb7c bi\u1ec7t t\u00f9y ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ea3ng wedge v\u00e0 Halbach nh\u1eb1m \u0111\u1ea3m b\u1ea3o h\u01b0\u1edbng tr\u01b0\u1eddng ch\u00ednh x\u00e1c.<\/li>\n<li><strong>B\u1ea3n \u0111\u1ed3 ch\u1ea5t l\u01b0\u1ee3ng theo l\u00f4:<\/strong> Ki\u1ec3m tra l\u1ec7ch g\u00f3c t\u1eeb tr\u01b0\u1eddng 100%, x\u00e1c nh\u1eadn l\u01b0u l\u01b0\u1ee3ng t\u1eeb qua cu\u1ed9n Helmholtz, v\u00e0 qu\u00e9t b\u1ec1 m\u1eb7t 3D \u1edf nhi\u1ec1u \u0111i\u1ec3m \u0111\u1ec3 x\u00e1c nh\u1eadn t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a t\u1eebng l\u00f4 s\u1ea3n xu\u1ea5t.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 nam ch\u00e2m l\u01b0u th\u00f4ng theo tr\u1ee5c<\/h2>\n<h3>T\u1ea1i sao \u0111\u1ed9ng c\u01a1 tr\u1ee5c d\u1ecdc l\u1ea1i y\u00eau c\u1ea7u nam ch\u00e2m h\u00ecnh wedge ho\u1eb7c h\u00ecnh sector?<\/h3>\n<p>M\u00e1y m\u00f3c l\u01b0u th\u00f4ng theo tr\u1ee5c d\u1ecdc ph\u1ee5 thu\u1ed9c v\u00e0o r\u00f4to h\u00ecnh \u0111\u0129a, n\u01a1i v\u1eadn t\u1ed1c b\u1ec1 m\u1eb7t t\u0103ng t\u1eeb \u0111\u01b0\u1eddng k\u00ednh trong ra \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i. Vi\u1ec7c s\u1eed d\u1ee5ng <strong>nam ch\u00e2m lu\u1ed3ng d\u1ecdc tr\u1ee5c<\/strong> h\u00ecnh wedge ho\u1eb7c h\u00ecnh sector cho ph\u00e9p ch\u00fang t\u00f4i:<br \/>\n<strong>T\u1ed1i \u01b0u h\u00f3a di\u1ec7n t\u00edch c\u1ef1c pole:<\/strong> C\u00e1c h\u00ecnh h\u1ecdc sector l\u1ea5p \u0111\u1ea7y \u0111\u1ec1u b\u1ec1 m\u1eb7t \u0111\u0129a r\u00f4to tr\u00f2n, t\u1ed1i \u0111a h\u00f3a t\u1ed5ng lu\u1ed3ng t\u1eeb.<br \/>\n<strong>Duy tr\u00ec m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng kh\u00f4ng kh\u00ed \u0111\u1ed3ng nh\u1ea5t:<\/strong> C\u00e1c profile wedge ph\u00f9 h\u1ee3p c\u0103n ch\u1ec9nh v\u1edbi c\u00e1c r\u0103ng stator t\u00e2m gi\u00e1c \u0111\u1ec3 t\u1ea1o ra s\u00f3ng back-EMF sin\u00f4 x\u00f3a.<br \/>\n<strong>Gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng r\u00eca m\u00f4-men xo\u1eafn:<\/strong> C\u00e1c c\u1ea1nh trapezoidal v\u00e0 cung tr\u00f2n ch\u00ednh x\u00e1c l\u00e0m m\u1ecbn c\u00e1c chuy\u1ec3n ti\u1ebfp gi\u1eefa c\u00e1c c\u1ef1c \u0111\u1ed1i ngh\u1ecbch.<\/p>\n<h3>Segmentation nam ch\u00e2m l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u1ea3m nhi\u1ec7t rotor v\u00e0 t\u1ed5n hao c\u00f4ng su\u1ea5t?<\/h3>\n<p>Rotor l\u1ed3ng xuy\u1ebfn tr\u1ee5c (axial flux) g\u1eb7p bi\u1ebfn \u0111\u1ed5i tr\u01b0\u1eddng t\u1eeb tr\u01b0\u1eddng cao th\u01b0\u1eddng xuy\u00ean khi\u1ebfn d\u00f2ng \u0111i\u1ec7n xo\u00e1y c\u1ee5c b\u1ed9 h\u00ecnh th\u00e0nh b\u00ean trong nam ch\u00e2m v\u0129nh c\u1eedu r\u1eafn.<\/p>\n<p>B\u1eb1ng c\u00e1ch tri\u1ec3n khai m\u1ed9t <strong>cu\u1ed9n nam ch\u00e2m chia segment<\/strong>, ch\u00fang t\u00f4i ph\u00e1 v\u1ee1 c\u00e1c \u0111\u01b0\u1eddng \u0111i\u1ec7n n\u00e0y th\u00e0nh c\u00e1c v\u00f9ng c\u00f4 l\u1eadp nh\u1ecf h\u01a1n v\u1ec1 m\u1eb7t v\u1eadt l\u00fd.<br \/>\n<strong>R\u00e0o c\u1ea3n \u0111i\u1ec7n tr\u1edf:<\/strong> L\u1edbp epoxy c\u00e1ch \u0111i\u1ec7n si\u00eau m\u8584 gi\u1eefa c\u00e1c \u0111o\u1ea1n gi\u1edbi h\u1ea1n v\u00f2ng l\u1eb7p d\u00f2ng xo\u00e1y th\u00e0nh c\u00e1c ph\u1ea7n ph\u1ee5 nh\u1ecf.<br \/>\n<strong>Qu\u1ea3n l\u00fd nhi\u1ec7t:<\/strong> C\u00e1c v\u00f2ng d\u00f2ng \u0111i\u1ec7n nh\u1ecf h\u01a1n gi\u1ea3m \u0111\u00e1ng k\u1ec3 sinh nhi\u1ec7t Joule c\u1ee5c b\u1ed9, gi\u1eef nhi\u1ec7t \u0111\u1ed9 rotor t\u1ed5ng th\u1ec3 \u1edf d\u01b0\u1edbi ng\u01b0\u1ee1ng ph\u00e1 h\u1ee7y t\u1eeb t\u00ednh.<br \/>\n<strong>Hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng:<\/strong> Ng\u0103n ch\u1eb7n loss c\u00f4ng su\u1ea5t trong rotor s\u1ebd quy \u0111\u1ed5i tr\u1ef1c ti\u1ebfp th\u00e0nh m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn cao h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t m\u00e1y li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n<p>N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ngu\u1ed3n c\u00e1c h\u00ecnh h\u1ecdc chuy\u00ean bi\u1ec7t, \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i s\u1ea3n xu\u1ea5t <a href=\"https:\/\/nbaem.com\/gd\/axial-flux-motor-magnet\/\">gi\u1ea3i ph\u00e1p nam ch\u00e2m motor l\u1ed3ng xuy\u1ebfn tr\u1ee5c t\u00f9y ch\u1ec9nh<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c topology \u0111\u1ed9ng c\u01a1 v\u00e0 y\u00eau c\u1ea7u c\u00e1ch \u0111i\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n<h3>V\u1eadt li\u1ec7u nam ch\u00e2m n\u00e0o l\u00fd t\u01b0\u1edfng cho \u1ee9ng d\u1ee5ng l\u1ed3ng xuy\u1ebfn tr\u1ee5c \u1edf nhi\u1ec7t \u0111\u1ed9 cao?<\/h3>\n<p>L\u1ef1a ch\u1ecdn ph\u1ee5 thu\u1ed9c tr\u1ef1c ti\u1ebfp v\u00e0o gi\u1edbi h\u1ea1n nhi\u1ec7t v\u1eadn h\u00e0nh v\u00e0 \u1ee9ng su\u1ea5t c\u01a1:<br \/>\n<strong>NdFeB sintered c\u1ea5p cao v\u1edbi GBD:<\/strong> T\u1ed1t nh\u1ea5t cho nhi\u1ec7t \u0111\u1ed9 l\u00ean t\u1edbi 180\u00b0C\u2013200\u00b0C n\u01a1i t\u1eeb t\u00ednh b\u1ecb r\u00fat ($B_r$) t\u1ed1i \u0111a v\u00e0 m\u1eadt \u0111\u1ed9 moment l\u00e0 thi\u1ebft y\u1ebfu (v\u00ed d\u1ee5, truy\u1ec1n \u0111\u1ed9ng EV v\u00e0 robotics hi\u1ec7u su\u1ea5t cao).<br \/>\n<strong>Samarium Cobalt (SmCo):<\/strong> L\u00fd t\u01b0\u1edfng cho m\u00f4i tr\u01b0\u1eddng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c v\u01b0\u1ee3t qu\u00e1 200\u00b0C l\u00ean \u0111\u1ebfn 350\u00b0C (v\u00ed d\u1ee5, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, khoan d\u01b0\u1edbi l\u00f2ng \u0111\u1ea5t v\u00e0 m\u00e1y ph\u00e1t c\u00f4ng nghi\u1ec7p n\u1eb7ng) do h\u1ec7 s\u1ed1 nhi\u1ec7t \u0111\u1ea3o ng\u01b0\u1ee3c g\u1ea7n nh\u01b0 b\u1eb1ng 0 v\u00e0 kh\u1ea3 n\u0103ng kh\u00e1ng b\u1ecf t\u1eeb t\u1eeb tuy\u1ec7t \u0111\u1ed1i v\u1edbi nhi\u1ec7t \u0111\u1ed9.<\/p>\n<h3>Halbach array nh\u01b0 th\u1ebf n\u00e0o lo\u1ea1i b\u1ecf nhu c\u1ea7u cho s\u1eaft l\u01b0ng rotor n\u1eb7ng?<\/h3>\n<p>Trong m\u1ed9t rotor ti\u00eau chu\u1ea9n, c\u1ea7n c\u00f3 m\u1ed9t t\u1ea5m l\u01b0ng b\u1eb1ng th\u00e9p ho\u1eb7c s\u1eaft n\u1eb7ng \u0111\u1ec3 h\u01b0\u1edbng v\u00e0 tr\u1ea3 flux t\u1eeb tr\u01b0\u1eddng gi\u1eefa c\u00e1c c\u1ef1c li\u1ec1n k\u1ec1. T\u00edch h\u1ee3p m\u1ed9t <strong>c\u1ea5u h\u00ecnh Halbach array<\/strong> l\u00e0m quay orientation c\u1ee7a t\u1eeb h\u00f3a tr\u00ean c\u00e1c segment nam ch\u00e2m li\u00ean ti\u1ebfp.<\/p>\n<p>M\u1ea3ng chu\u1ea9n: [ N ] \u2192 [ S ] \u2192 [ N ] (Y\u00eau c\u1ea7u s\u1eaft l\u01b0ng)<br \/>\nHalbach Array: [ \u2191 ] [ \u2192 ] [ \u2193 ] [ \u2190 ] [ \u2191 ] (Flux t\u1eadp trung \u1edf m\u1ed9t ph\u00eda)<\/p>\n<p>C\u00e1ch s\u1eafp x\u1ebfp n\u00e0y c\u1ed9ng h\u01b0\u1edfng v\u00e0 t\u1eadp trung m\u1eadt \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng ho\u00e0n to\u00e0n \u1edf ph\u00eda kho\u1ea3ng kh\u00f4ng l\u00e0m vi\u1ec7c trong khi tri\u1ec7t ti\u00eau n\u00f3 \u1edf ph\u00eda sau. Do \u0111\u00f3, ch\u00fang ta c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf ho\u1eb7c gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 d\u00e0y s\u1eaft l\u01b0ng rotor, gi\u1ea3m \u0111\u00e1ng k\u1ec3 inertia quay v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ch\u1ebft. Hi\u1ec3u bi\u1ebft c\u00e1c nuance c\u1ee7a <a href=\"https:\/\/nbaem.com\/vi\/what-magnet-materials-are-best-for-halbach-arrays\/\">v\u1eadt li\u1ec7u nam ch\u00e2m ph\u00f9 h\u1ee3p cho m\u1ea3ng Halbach<\/a> \u0111\u1ea3m b\u1ea3o b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1eadp trung flux t\u1ed1i \u0111a m\u00e0 kh\u00f4ng b\u1ecb tho\u00e1i h\u00f3a nhi\u1ec7t s\u1edbm.<\/p>\n<div id=\"references\">\n<h2>Ngu\u1ed3n li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.arnoldmagnetics.com\/resources\/permanent-magnet-materials\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.arnoldmagnetics.com\/resources\/permanent-magnet-materials\/<\/a><\/li>\n<li><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S143484112100236X\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S143484112100236X<\/a><\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/8962258\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/ieeexplore.ieee.org\/document\/8962258\/<\/a><\/li>\n<li><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S100207212100140X\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.sciencedirect.com\/science\/article\/pii\/S100207212100140X<\/a><\/li>\n<li><a href=\"https:\/\/ieeexplore.ieee.org\/document\/6816053\/\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/ieeexplore.ieee.org\/document\/6816053\/<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 nam ch\u00e2m t\u1eeb tr\u01b0\u1eddng tr\u1ee5c v\u1edbi hi\u1ec7u su\u1ea5t cao cho \u0111\u1ed9ng c\u01a1 nh\u1ecf g\u1ecdn, m\u00e1y ph\u00e1t v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt t\u00f9y ch\u1ec9nh v\u1edbi \u0111\u1ed9 b\u1ec1n t\u1eeb tin c\u1eady<\/p>","protected":false},"author":1,"featured_media":4001,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4002","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/10\/Axial_flux_permanent_magnet_rotor_PJz.webp","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/4002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/comments?post=4002"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/4002\/revisions"}],"predecessor-version":[{"id":4010,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/4002\/revisions\/4010"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/4001"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=4002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=4002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=4002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}