{"id":3940,"date":"2026-07-21T07:51:06","date_gmt":"2026-07-21T07:51:06","guid":{"rendered":"https:\/\/nbaem.com\/?p=3940"},"modified":"2026-07-19T05:56:35","modified_gmt":"2026-07-19T05:56:35","slug":"axial-flux-motor-magnet","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/axial-flux-motor-magnet\/","title":{"rendered":"\u0110\u1ed9ng c\u01a1 Flux Tr\u1ee5c M\u00e1y nam ch\u00e2m NdFeB M\u00f4-men xo\u1eafn cao t\u00f9y ch\u1ec9nh"},"content":{"rendered":"<h2>\u0110\u1ed9ng l\u1ef1c t\u1eeb tr\u01b0\u1eddng b\u00e1n k\u00ednh so v\u1edbi t\u1eeb tr\u01b0\u1eddng d\u1ecdc tr\u1ee5c<\/h2>\n<p>Khi thi\u1ebft k\u1ebf c\u00e1c thi\u1ebft b\u1ecb n\u00e2ng \u0111i\u1ec7n hi\u1ec7u su\u1ea5t cao ho\u1eb7c h\u1ec7 truy\u1ec1n \u0111\u1ed9ng, l\u1ef1a ch\u1ecdn topology t\u1eeb tr\u01b0\u1eddng quy\u1ebft \u0111\u1ecbnh to\u00e0n b\u1ed9 ph\u1ea1m vi thi\u1ebft k\u1ebf. \u0110\u1ed9ng c\u01a1 truy\u1ec1n th\u1ed1ng d\u1ef1a tr\u00ean \u0111\u01b0\u1eddng d\u1eabn t\u1eeb tr\u01b0\u1eddng b\u00e1n k\u00ednh, n\u01a1i tr\u01b0\u1eddng t\u1eeb \u0111i theo h\u01b0\u1edbng vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c \u0111\u1ed9ng c\u01a1. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ed9t <strong>gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tru\u0323 axiale<\/strong> c\u1ea5u h\u00ecnh \u00e9p bu\u1ed9c t\u1eeb tr\u01b0\u1eddng \u0111i song song v\u1edbi tr\u1ee5c \u0111\u1ed9ng c\u01a1.<\/p>\n<p>S\u1ef1 thay \u0111\u1ed5i c\u01a1 b\u1ea3n n\u00e0y v\u1ec1 \u0111\u1ed9ng l\u1ef1c t\u1eeb tr\u01b0\u1eddng mang l\u1ea1i thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 d\u1ea1ng \u0111\u0129a ph\u1eb3ng ki\u1ec3u \u201cpancake motor\u201d gi\u00fap t\u0103ng m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn l\u00ean \u0111\u00e1ng k\u1ec3 v\u00e0 chi\u1ebfm kh\u00f4ng gian footprint nh\u1ecf h\u01a1n.<\/p>\n<hr \/>\n<h3>So s\u00e1nh \u0111\u01b0\u1eddng d\u1eabn t\u1eeb<\/h3>\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t c\u1ea5u tr\u00fac v\u00e0 hi\u1ec7u su\u1ea5t gi\u1eefa hai c\u1ea5u h\u00ecnh l\u00e0m m\u00e1t v\u00e0 \u0111\u1ed9ng h\u1ecdc n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch t\u1eeb tr\u01b0\u1eddng t\u01b0\u01a1ng t\u00e1c v\u1edbi t\u1ed5 h\u1ee3p \u0111\u0129a rotor:<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th style=\"text-align: left;\">\u0110\u1ed9ng c\u01a1 t\u1eeb tr\u01b0\u1eddng b\u00e1n k\u00ednh<\/th>\n<th style=\"text-align: left;\">\u0110\u1ed9ng c\u01a1 t\u1eeb tr\u01b0\u1eddng d\u1ecdc tr\u1ee5c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>H\u01b0\u1edbng t\u1eeb<\/strong><\/td>\n<td style=\"text-align: left;\">Vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c (B\u00e1n k\u00ednh)<\/td>\n<td style=\"text-align: left;\">Song song v\u1edbi tr\u1ee5c (D\u1ecdc tr\u1ee5c)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>D\u1ea1ng h\u00ecnh<\/strong><\/td>\n<td style=\"text-align: left;\">D\u00e0i, h\u00ecnh tr\u1ee5<\/td>\n<td style=\"text-align: left;\">Ph\u1eb3ng, d\u1ea1ng \u0111\u0129a (Pancake)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Kh\u1ed1i Nam ch\u00e2m Ho\u1ea1t \u0111\u1ed9ng<\/strong><\/td>\n<td style=\"text-align: left;\">Gi\u1edbi h\u1ea1n b\u1edfi chi\u1ec1u d\u00e0i rotor<\/td>\n<td style=\"text-align: left;\">T\u1ed1i \u01b0u h\u00f3a tr\u00ean b\u1ec1 m\u1eb7t \u0111\u0129a<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>H\u1ed3 s\u01a1 m\u00f4-men xo\u1eafn<\/strong><\/td>\n<td style=\"text-align: left;\">Ti\u00eau chu\u1ea9n<\/td>\n<td style=\"text-align: left;\">M\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn ultra cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>V\u00ec v\u1eadt li\u1ec7u t\u1eeb ho\u1ea1t \u0111\u1ed9ng n\u1eb1m \u1edf b\u00e1n k\u00ednh l\u1edbn h\u01a1n so v\u1edbi tr\u1ee5c gi\u1eefa, c\u00e1ch b\u1ed1 tr\u00ed nam ch\u00e2m \u0111\u1ed9ng c\u01a1 t\u1eeb tr\u01b0\u1eddng d\u1ecdc tr\u1ee5c t\u1ea1o ra \u0111\u00f2n b\u1ea9y nhi\u1ec1u h\u01a1n, chuy\u1ec3n \u0111\u1ed5i l\u1ef1c t\u1eeb tr\u01b0\u1eddng th\u00e0nh m\u00f4-men xo\u1eafn quay nhanh h\u01a1n nhi\u1ec1u so v\u1edbi c\u00e1c tr\u01b0\u1eddng h\u1ee3p radial.<\/p>\n<hr \/>\n<h3>Th\u1eed th\u00e1ch kho\u1ea3ng tr\u1ed1ng kh\u00f4ng kh\u00ed<\/h3>\n<p>\u0110\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t \u01b0u vi\u1ec7t n\u00e0y \u0111\u00f2i h\u1ecfi t\u1ed1i \u01b0u h\u00f3a kho\u1ea3ng tr\u1ed1ng kh\u00ed xi\u1ebft ch\u00ednh x\u00e1c. Trong b\u1ed1 tr\u00ed t\u1eeb tr\u01b0\u1eddng d\u1ecdc tr\u1ee5c, c\u00e1c l\u1ef1c t\u1eeb t\u00e1c \u0111\u1ed9ng k\u00e9o xi\u1ebft l\u00ean gi\u1eefa rotor v\u00e0 stato.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>S\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ea5u tr\u00fac:<\/strong> B\u1ed9 gh\u00e9p rotor ph\u1ea3i ch\u1ed1ng l\u1ea1i c\u00e1c l\u1ef1c u\u1ed1n \u0111\u1ec3 ng\u0103n ch\u1eb7n ti\u1ebfp x\u00fac g\u00e2y h\u1ecfng v\u1edbi stato.<\/li>\n<li><strong>Tr\u1ea3i qua t\u1eeb tr\u01b0\u1eddng \u0111\u1ec1u:<\/strong> Duy tr\u00ec m\u1ed9t kho\u1ea3ng kh\u00f4ng kh\u00ed h\u1eb9p, nh\u1ea5t qu\u00e1n tr\u00ean to\u00e0n \u0111\u01b0\u1eddng k\u00ednh l\u00e0 \u0111i\u1ec1u then ch\u1ed1t \u0111\u1ec3 ng\u0103n ng\u1eeba m\u1ea5t c\u00e2n b\u1eb1ng flux.<\/li>\n<li><strong>M\u00f4i tr\u01b0\u1eddng ch\u1ecbu t\u1ea3i cao:<\/strong> M\u1edf r\u1ed9ng nhi\u1ec7t v\u00e0 t\u1ed1c \u0111\u1ed9 quay cao li\u00ean t\u1ee5c \u0111e d\u1ecda dung sai kho\u1ea3ng kh\u00f4ng kh\u00ed, \u0111\u00f2i h\u1ecfi s\u1ef1 c\u1ed1 \u0111\u1ecbnh c\u01a1 h\u1ecdc v\u1eefng ch\u1eafc v\u00e0 nam ch\u00e2m \u0111\u1ea5t hi\u1ebfm c\u00f3 t\u1eeb t\u00ednh c\u01b0\u1ee1ng cao.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u chi\u1ebfn l\u01b0\u1ee3c cho r\u00f4to axial flux<\/h2>\n<p>Khi ch\u00fang t\u00f4i thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n hi\u1ec7u su\u1ea5t cao, vi\u1ec7c ch\u1ecdn \u0111\u00fang <strong>gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tru\u0323 axiale<\/strong> v\u1eadt li\u1ec7u\u51b3\u5b9a whether the powertrain succeeds or suffers from catastrophic demagnetization. We look closely at magnetic remanence ($B_r$), intrinsic coercivity, and thermal thresholds to ensure our rotor disc assembly handles extreme operational stresses.<\/p>\n<h3>NdFeB Neodymium d\u1ea1ng sintered ch\u1ea5t l\u01b0\u1ee3ng cao<\/h3>\n<p>\u0110\u1ec3 \u0111\u1ea1t m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn t\u1ed1i \u0111a, nam ch\u00e2m v\u0129nh vi\u1ec5n \u0111\u1ea5t hi\u1ebfm Neodymium d\u1ea1ng sintered v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn m\u1eb7c \u0111\u1ecbnh c\u1ee7a ch\u00fang t\u00f4i. Tuy nhi\u00ean, c\u00e1c c\u1ea5p Neodymium ti\u00eau chu\u1ea9n s\u1ebd g\u1eb7p s\u1ef1 c\u1ed1 khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng. Ch\u00fang t\u00f4i c\u00e2n b\u1eb1ng s\u1ee9c m\u1ea1nh t\u1eeb tr\u01b0\u1eddng th\u00f4 v\u1edbi \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t b\u1eb1ng c\u00e1ch t\u0103ng d\u1ea7n l\u00ean qua c\u00e1c c\u1ea5p \u0111\u1eb7c bi\u1ec7t:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>N42 \u0111\u1ebfn N45:<\/strong> L\u00fd t\u01b0\u1edfng cho c\u00e1c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t t\u1ef1 nhi\u00ean ho\u1eb7c b\u1eb1ng ch\u1ea5t l\u1ecfng, n\u01a1i nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh d\u01b0\u1edbi 80\u00b0C.<\/li>\n<li><strong>N45H:<\/strong> Gi\u1eef remanence cao trong khi \u0111\u1ea9y ng\u01b0\u1ee1ng nhi\u1ec7t l\u00ean \u0111\u1ebfn 120\u00b0C.<\/li>\n<li><strong>N40SH:<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p n\u1eb7ng, \u1ed5n \u0111\u1ecbnh t\u1edbi 150\u00b0C.<\/li>\n<li><strong>N40UH:<\/strong> H\u1ee3p kim c\u00f3 \u0111\u1ed9 b\u1ec1n cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho l\u1ef1c k\u00e9o \u00f4 t\u00f4 kh\u1eaft khe, ch\u1ecbu \u0111\u01b0\u1ee3c t\u1edbi 180\u00b0C m\u00e0 kh\u00f4ng m\u1ea5t flux v\u0129nh vi\u1ec5n.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>V\u00ec Neodymium d\u1ec5 b\u1ecb oxy h\u00f3a, ch\u00fang t\u00f4i \u00e1p d\u1ee5ng c\u00e1c l\u1edbp x\u1eed l\u00fd b\u1ec1 m\u1eb7t m\u1ea1nh m\u1ebd. Ch\u00fang t\u00f4i s\u1eed d\u1ee5ng c\u00e1c l\u1edbp ph\u1ee7 premium <strong>Ni-Cu-Ni (Nickel-Copper-Nickel) l\u1edbp m\u1ea1 nhi\u1ec1u l\u1edbp<\/strong> cho c\u00e1c m\u00f4i tr\u01b0\u1eddng ti\u00eau chu\u1ea9n, v\u00e0 chuy\u00ean bi\u1ec7t <strong>L\u1edbp ph\u1ee7 epoxy<\/strong> \u0111\u1ec3 b\u1ea3o v\u1ec7 nam ch\u00e2m kh\u1ecfi \u0111\u1ed9 \u1ea9m \u0111\u1eb7c tr\u01b0ng v\u00e0 ti\u1ebfp x\u00fac h\u00f3a ch\u1ea5t trong kh\u00ed quy\u1ec3n.<\/p>\n<h3>Samarium Cobalt (SmCo) cho c\u00e1c bi\u00ean nhi\u1ec7t c\u1ef1c \u0111oan<\/h3>\n<p>Khi m\u1ed9t \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u v\u1eadn h\u00e0nh li\u00ean t\u1ee5c v\u01b0\u1ee3t qu\u00e1 180\u00b0C, ch\u00fang t\u00f4i chuy\u1ec3n t\u1eeb Nd sang <strong>cobalt Samarium (SmCo) c\u00f3 l\u1ef1c t\u1eeb tr\u01b0\u1eddng c\u01b0\u1eddng \u0111\u1ed9 cao<\/strong>.<\/p>\n<p>Trong khi SmCo c\u00f3 remanence th\u1ea5p h\u01a1n ch\u00fat so v\u1edbi NdFeB cao c\u1ea5p \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, ngu\u1ed3n t\u1eeb c\u1ee7a n\u00f3 v\u1eabn \u1ed5n \u0111\u1ecbnh r\u1ea5t cao khi nhi\u1ec7t \u0111\u1ed9 l\u00ean t\u1edbi 300\u00b0C ho\u1eb7c 350\u00b0C. SmCo c\u00f3 h\u1ec7 s\u1ed1 nhi\u1ec7t \u0111\u1ed9 remanence c\u1ef1c th\u1ea5p v\u00e0 \u0111\u1ed9 \u1ed5n h\u00f3a h\u1ecdc v\u01b0\u1ee3t tr\u1ed9i, c\u00f3 ngh\u0129a l\u00e0 c\u00e1c nam ch\u00e2m n\u00e0y ch\u1ed1ng \u0103n m\u00f2n t\u1ef1 nhi\u00ean m\u00e0 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7 b\u00ean ngo\u00e0i. \u0110i\u1ec1u n\u00e0y l\u00e0m cho ch\u00fang tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu cho h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, d\u1ea7u kh\u00ed v\u00e0 thi\u1ebft k\u1ebf \u0111\u1ed9ng c\u01a1 pancake t\u1ed1c \u0111\u1ed9 cao-\u0111\u1ed9 l\u1ec7ch cao.<\/p>\n<h3>H\u1ed7n h\u1ee3p s\u1eaft t\u1eeb m\u1ec1m (SMC)<\/h3>\n<p>\u0110\u1ec3 b\u1ed5 sung nam ch\u00e2m v\u0129nh vi\u1ec5n c\u1ee7a ch\u00fang t\u00f4i, ch\u00fang t\u00f4i t\u00edch h\u1ee3p c\u00e1c v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn <strong>H\u1ed7n h\u1ee3p s\u1eaft t\u1eeb m\u1ec1m (SMC)<\/strong> v\u00e0o c\u1ea5u tr\u00fac l\u00f5i rotor v\u00e0 stator. V\u1eadt li\u1ec7u SMC bao g\u1ed3m c\u00e1c h\u1ea1t s\u1eaft \u0111\u01b0\u1ee3c ph\u1ee7 m\u1ed9t l\u1edbp c\u00e1ch \u0111i\u1ec7n \u0111i\u1ec7n.<\/p>\n<p>B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng SMC, ch\u00fang ta c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh c\u00e1c \u0111\u01b0\u1eddng d\u1eabn t\u1eeb tr\u01b0\u1eddng 3D hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u so v\u1edbi l\u00f5i th\u00e9p cu\u1ed9n truy\u1ec1n th\u1ed1ng cho ph\u00e9p. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ed5n th\u1ea5t l\u00f5i v\u00e0 t\u1ed1i \u01b0u h\u00f3a \u0111\u00e1p \u1ee9ng t\u1ea7n s\u1ed1 cao trong c\u00e1c \u1ee9ng d\u1ee5ng t\u1eeb th\u00f4ng tr\u1ee5c d\u1ecdc quay nhanh. Tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 c\u00e2n b\u1eb1ng c\u01a1 h\u1ecdc ph\u1ed5 bi\u1ebfn nh\u01b0 \u0111\u01b0\u1ee3c th\u1ea5y \u1edf <a href=\"https:\/\/nbaem.com\/vi\/ceiling-fan-wobbling-causes-and-magnetic-solutions\/\">ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng rung qu\u1ea1t treo v\u1edbi theo d\u00f5i t\u1eeb t\u00ednh<\/a>, c\u1eb7p v\u1eadt li\u1ec7u c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o c\u00e2n b\u1eb1ng \u0111\u1ed9ng ho\u00e0n h\u1ea3o v\u00e0 tr\u01b0\u1eddng t\u1eeb \u0111\u1ed3ng nh\u1ea5t tr\u00ean kho\u1ea3ng kh\u00f4ng kh\u00ed.<\/p>\n<h2>Gi\u1ea3m t\u1ed5n th\u1ea5t do d\u00f2ng \u0111i\u1ec7n xo\u00e1y trong nam ch\u00e2m motor tr\u1ee5c d\u1ecdc<\/h2>\n<p>\u0110\u1ed5i ng\u1eabu nhi\u00ean t\u1ea7n s\u1ed1 cao b\u00ean trong \u0111\u1ed9ng c\u01a1 xuy\u00ean t\u00e2m d\u1ea1ng tr\u1ee5c c\u00f3 v\u00f2ng quay cao t\u1ea1o ra m\u1ed9t th\u1eed th\u00e1ch k\u1ef9 thu\u1eadt l\u1edbn: nhi\u1ec7t \u0111\u1ecba ph\u01b0\u01a1ng nghi\u00eam tr\u1ecdng. Khi nh\u1eefng \u0111\u1ed9ng c\u01a1 n\u00e0y ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 cao, c\u00e1c tr\u01b0\u1eddng t\u1eeb bi\u1ebfn thi\u00ean t\u1ea1o ra c\u00e1c v\u00f2ng k\u00edn c\u1ee7a d\u00f2ng \u0111i\u1ec7n\u2014d\u00f2ng xo\u00e1y t\u1eeb\u2014tr\u1ef1c ti\u1ebfp b\u00ean trong nam ch\u00e2m v\u0129nh vi\u1ec5n tr\u00ean rotor. N\u1ebfu kh\u00f4ng c\u00f3 s\u1ef1 can thi\u1ec7p, s\u1ef1 t\u00edch t\u1ee5 nhi\u1ec7t nhanh n\u00e0y d\u1eabn \u0111\u1ebfn m\u1ea5t t\u1eeb t\u00ednh kh\u00f4ng th\u1ec3 ph\u1ee5c h\u1ed3i v\u00e0 s\u1ef1 c\u1ed1 motor g\u00e2y th\u1ea3m h\u1ecda.<\/p>\n<h3>Ph\u00e2n \u0111o\u1ea1n t\u1eeb tr\u01b0\u1eddng ti\u00ean ti\u1ebfn<\/h3>\n<p>\u0110\u1ec3 ph\u00e1 v\u1ee1 nh\u1eefng v\u00f2ng d\u00f2ng ph\u00e1 h\u1ee7y n\u00e0y, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng ph\u00e2n chia h\u00ecnh h\u1ecdc ch\u00ednh x\u00e1c. B\u1eb1ng c\u00e1ch ng\u1eaft c\u00e1c \u0111\u01b0\u1eddng \u0111i\u1ec7n m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c b\u00ean trong <strong>gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tru\u0323 axiale<\/strong>, ch\u00fang t\u00f4i gi\u1eef rotor v\u1eadn h\u00e0nh m\u00e1t d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Ph\u00e2n \u0111o\u1ea1n theo chi\u1ec1u ngang:<\/strong> C\u1eaft nam ch\u00e2m d\u1ecdc theo \u0111\u01b0\u1eddng flux, effectively chia t\u00e1ch \u0111i\u1ec7n \u00e1p \u1edf \u0111\u1ed9 d\u00e0y.<\/li>\n<li><strong>Ph\u00e2n \u0111o\u1ea1n theo chi\u1ec1u d\u1ecdc:<\/strong> Ng\u1eaft c\u00e1c d\u00f2ng \u0111i\u1ec7n lan r\u1ed9ng tr\u00ean m\u1eb7t r\u1ed9ng c\u1ee7a nam ch\u00e2m, \u0111i\u1ec1u n\u00e0y l\u00fd t\u01b0\u1edfng \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c chuy\u1ec3n \u0111\u1ed5i khe r\u00e3nh stato nhanh.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>K\u1ef9 thu\u1eadt Nam ch\u00e2m gh\u00e9p t\u1ea7ng NBAEM<\/h3>\n<p>Ch\u00fang t\u00f4i \u0111\u00e3 ph\u00e1t tri\u1ec3n m\u1ed9t quy tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 \u0111\u1ea9y ph\u00e2n \u0111o\u1ea1n t\u1edbi gi\u1edbi h\u1ea1n tuy\u1ec7t \u0111\u1ed1i. Khi quy\u1ebft \u0111\u1ecbnh <a href=\"https:\/\/nbaem.com\/vi\/what-motor-magnets-used-in-permanent-magnet-motors\/\">\u0111i\u1ec1u nam ch\u00e2m c\u1ee7a \u0111\u1ed9ng c\u01a1 s\u1eed d\u1ee5ng trong \u0111\u1ed9ng c\u01a1 nam ch\u00e2m v\u0129nh c\u1eedu<\/a> s\u1ebd ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u00f3ng\/c\u1eaft t\u1ea7n s\u1ed1 cao t\u1ed1t nh\u1ea5t, c\u00e1c thi\u1ebft k\u1ebf gh\u00e9p l\u1edbp chuy\u00ean bi\u1ec7t c\u1ee7a ch\u00fang t\u00f4i n\u1ed5i b\u1eadt b\u1eb1ng c\u00e1ch c\u1eaft nam ch\u00e2m v\u0129nh c\u1eedu th\u00e0nh c\u00e1c l\u1edbp vi m\u00f4 si\u00eau m\u1ecfng c\u00e1ch \u0111i\u1ec7n.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Ch\u1ec9 s\u1ed1 Hi\u1ec7u su\u1ea5t<\/th>\n<th style=\"text-align: left;\">Nam ch\u00e2m r\u1eafn<\/th>\n<th style=\"text-align: left;\">Nam ch\u00e2m gh\u00e9p t\u1ea7ng NBAEM<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>K\u00edch th\u01b0\u1edbc v\u00f2ng d\u00f2ng xo\u00e1y \u0111i\u1ec7n (Eddy Current Loop Size)<\/strong><\/td>\n<td style=\"text-align: left;\">Kh\u00f4ng b\u1ecb gi\u1edbi h\u1ea1n (L\u1edbn)<\/td>\n<td style=\"text-align: left;\">B\u1ecb gi\u1edbi h\u1ea1n trong c\u00e1c l\u1edbp vi m\u00f4 (T\u1ed1i thi\u1ec3u)<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>R\u1ee7i ro h\u1ecfng h\u00f3c nhi\u1ec7t<\/strong><\/td>\n<td style=\"text-align: left;\">Nguy c\u01a1 kh\u1eed t\u1eeb cao<\/td>\n<td style=\"text-align: left;\">H\u1ed3 s\u01a1 nhi\u1ec7t c\u1ef1c k\u1ef3 th\u1ea5p<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Hi\u1ec7u qu\u1ea3 \u1edf v\u00f2ng quay cao<\/strong><\/td>\n<td style=\"text-align: left;\">Gi\u1ea3m \u0111\u00e1ng k\u1ec3 do nhi\u1ec7t<\/td>\n<td style=\"text-align: left;\">Duy tr\u00ec li\u00ean t\u1ee5c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ki\u1ebfn tr\u00fac l\u1edbp si\u00eau nh\u1ecf n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t chu\u1ed7i ch\u01b0\u1edbng ng\u1ea1i v\u1eadt v\u1eadt l\u00fd cho d\u00f2ng \u0111i\u1ec7n. B\u1eb1ng c\u00e1ch ch\u1ecdn nh\u1eefng c\u1ea5u h\u00ecnh ti\u00ean ti\u1ebfn n\u00e0y <strong>gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tru\u0323 axiale<\/strong> b\u1ea1n s\u1ebd h\u1ea1n ch\u1ebf m\u1ea1nh m\u1ebd t\u1ed5n th\u1ea5t do d\u00f2ng xo\u00e1y v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i c\u1ee7a t\u1ed5 h\u1ee3p r\u00f4to hi\u1ec7u su\u1ea5t cao c\u1ee7a b\u1ea1n.<\/p>\n<h2>T\u1ed1i \u01b0u h\u00f3a \u0110\u1ecba h\u00ecnh: Tinh ch\u1ec9nh Nam ch\u00e2m \u0110\u1ed9ng c\u01a1 D\u00f2ng Axial cho M\u00f4-men xo\u1eafn t\u1ed1i \u0111a<\/h2>\n<p>Khi thi\u1ebft k\u1ebf h\u1ec7 truy\u1ec1n \u0111\u1ed9ng \u0111i\u1ec7n hi\u1ec7u su\u1ea5t cao, h\u00ecnh h\u1ecdc c\u1ee7a <strong>gi\u1ea3i ph\u00e1p nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tru\u0323 axiale<\/strong> x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c motor ho\u1ea1t \u0111\u1ed9ng m\u01b0\u1ee3t m\u00e0 v\u00e0 m\u1ea1nh m\u1ebd nh\u01b0 th\u1ebf n\u00e0o. C\u00e1c h\u00ecnh kh\u1ed1i ti\u00eau chu\u1ea9n ho\u1eb7c h\u00ecnh n\u00eam \u0111\u01a1n gi\u1ea3n kh\u00f4ng c\u00f2n ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng ti\u00ean ti\u1ebfn. Chuy\u1ec3n sang c\u00e1c h\u1ed3 s\u01a1 ph\u00e2n \u0111o\u1ea1n ph\u1ee9c t\u1ea1p, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho ph\u00e9p ch\u00fang ta \u0111i\u1ec1u ch\u1ec9nh tr\u01b0\u1eddng t\u1eeb m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c t\u1ea1i v\u1ecb tr\u00ed g\u1eb7p c\u00e1c r\u00e3nh stato.<\/p>\n<p>T\u00f9y thu\u1ed9c v\u00e0o c\u1ea5u h\u00ecnh l\u1eafp r\u00e1p \u0111\u0129a r\u00f4to c\u1ee7a b\u1ea1n, h\u00ecnh d\u00e1ng s\u1ebd t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>\u201cNg\u00e0nh\u201d v\u00e0 \u201cN\u00eam\u201d:<\/strong> L\u00fd t\u01b0\u1edfng cho h\u1ec7 thi\u1ebft b\u1ecb stator \u0111\u01a1n\/ r\u00f4to \u0111\u00f4i \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a di\u1ec7n t\u00edch ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<li><strong>V\u00f2ng tr\u00f2n \u0111\u1ed3ng t\u00e2m:<\/strong> Tuy\u1ec7t v\u1eddi cho vi\u1ec7c qu\u1ea3n l\u00fd \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc trong thi\u1ebft k\u1ebf stato \u0111\u00f4i \/ roto \u0111\u01a1n.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u01afu th\u1ebf h\u00ecnh qu\u1ea1t l\u1ec7ch<\/h3>\n<p>\u0110\u1ec3 lo\u1ea1i b\u1ecf m\u00f4-men cogging (k\u00e9o r\u0103ng) kh\u1eafc nghi\u1ec7t, rung \u0111\u1ed9ng v\u00e0 ti\u1ebfng \u1ed3n \u00e2m thanh, ch\u00fang t\u00f4i d\u1ef1a nhi\u1ec1u v\u00e0o <strong>h\u00ecnh d\u1ea1ng qu\u1ea1t l\u1ec7ch<\/strong>. B\u1eb1ng c\u00e1ch l\u1ec7ch vi m\u00f4 m\u00e9p nam ch\u00e2m v\u0129nh c\u1eedu, ch\u00fang t\u00f4i l\u00e0m gi\u00e1n \u0111o\u1ea1n s\u1ef1 c\u0103n ch\u1ec9nh \u0111\u1ed9t ng\u1ed9t gi\u1eefa nam ch\u00e2m rotor v\u00e0 c\u00e1c khe stator. Thay v\u00ec m\u1ed9t c\u00fa \u201csnap\u201d kh\u1eafc nghi\u1ec7t khi nam ch\u00e2m \u0111i qua m\u1ed9t r\u0103ng, qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i tr\u1edf n\u00ean d\u1ea7n d\u1ea7n, l\u00e0m m\u1ecbn r\u00eca m\u00f4-men v\u00e0 \u0111\u1ea3m b\u1ea3o v\u1eadn h\u00e0nh \u00eam \u00e1i.<\/p>\n<h3>T\u00edch h\u1ee3p M\u1ea3ng Halbach<\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c d\u1ef1 \u00e1n y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t tuy\u1ec7t \u0111\u1ed1i, ch\u00fang t\u00f4i s\u1eafp x\u1ebfp c\u00e1c nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u1ea5t hi\u1ebfm c\u1ee7a m\u00ecnh th\u00e0nh m\u1ed9t <strong>M\u1ea3ng Halbach<\/strong>. C\u1edbi \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u1eb7c bi\u1ec7t n\u00e0y quay vect\u01a1 tr\u01b0\u1eddng t\u1eeb, c\u1ee7ng c\u1ed1 v\u00e0 ph\u00f3ng \u0111\u1ea1i m\u1eadt \u0111\u1ed9 t\u1eeb tr\u00ean ph\u00eda stator ch\u1ee9c n\u0103ng trong khi tri\u1ec7t ti\u00eau n\u00f3 \u1edf ph\u00eda s\u1eaft ph\u00eda sau.<\/p>\n<p>[ -&gt; ] [ ^ ] [ &lt;- ] [ v ] &lt;\u2013 \u0110\u1ecbnh h\u01b0\u1edbng Halbach<\/p>\n<hr \/>\n<p>======= TR\u01af\u1edcNG \u0110I\u1ec6N \u0110\u01af\u1ee2C N\u00d3I ======= &lt;\u2013 M\u1eb7t Ph\u00f3ng \u0110\u1ea1i Density<\/p>\n<p>C\u00e1ch b\u1ed1 tr\u00ed n\u00e0y mang l\u1ea1i cho b\u1ea1n m\u1ed9t c\u00fa nh\u1ea3y l\u1edbn v\u1ec1 m\u1eadt \u0111\u1ed9 m\u00f4-men xoay t\u1ed5ng th\u1ec3 m\u00e0 kh\u00f4ng th\u00eam b\u1ea5t k\u1ef3 tr\u1ecdng l\u01b0\u1ee3ng n\u00e0o v\u00e0o t\u1ed5 h\u1ee3p rotor.<\/p>\n<h2>Ngu\u1ed3n cung c\u1ea5p B\u1ed9 l\u1eafp r\u00e1p Nam ch\u00e2m Tr\u1ee5c xuy\u00ean k\u1ebft h\u1ee3p<\/h2>\n<p>Thu th\u1eadp nam ch\u00e2m r\u1eddi v\u00e0 c\u1ed1 g\u1eafng li\u00ean k\u1ebft rotor t\u1ea1i ch\u1ed7 g\u00e2y ra r\u1ee7i ro l\u1eafp r\u00e1p l\u1edbn, chi ph\u00ed ph\u1ebf li\u1ec7u v\u00e0 nh\u1ee9c \u0111\u1ea7u c\u00e2n b\u1eb1ng. Ch\u00fang t\u00f4i cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 <strong>gi\u1ea3i ph\u00e1p l\u1eafp r\u00e1p t\u1eeb t\u00ednh<\/strong> trong \u0111\u00f3 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao <strong>nam magnets \u0111\u1ea5t hi\u1ebfm v\u0129nh vi\u1ec5n<\/strong> \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp v\u1edbi <strong>l\u00f5i ph\u00e2n c\u1ef1c \u0111\u1ed9ng c\u01a1<\/strong>. C\u00e1ch ti\u1ebfp c\u1eadn tinh g\u1ecdn n\u00e0y r\u00fat ng\u1eafn \u0111\u1ed9 ph\u1ee9c t\u1ea1p chu\u1ed7i cung \u1ee9ng c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac \u1edf t\u1ed1c \u0111\u1ed9 quay cao.<\/p>\n<hr \/>\n<h3>Chu\u1ea9n m\u1ef1c Chu\u1ed7i cung \u1ee9ng &amp; Ch\u1ea5t l\u01b0\u1ee3ng to\u00e0n c\u1ea7u<\/h3>\n<p>Ch\u00fang t\u00f4i h\u1eadu thu\u1eabn c\u00e1c b\u1ed9 ph\u1eadn c\u00f4ng nghi\u1ec7p v\u00e0 \u00f4 t\u00f4 b\u1eb1ng c\u00e1c ti\u00eau chu\u1ea9n x\u00e1c nh\u1eadn nghi\u00eam ng\u1eb7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u00e0o d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t c\u1ee7a b\u1ea1n.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">Ti\u00eau chu\u1ea9n \/ H\u1ec7 m\u00e9t<\/th>\n<th style=\"text-align: left;\">Th\u00f4ng s\u1ed1 &amp; M\u1ee5c ti\u00eau<\/th>\n<th style=\"text-align: left;\">L\u1ee3i th\u1ebf v\u1eadn h\u00e0nh<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Ch\u1ee9ng nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng<\/strong><\/td>\n<td style=\"text-align: left;\">ISO 9001, ISO 14001, ISO\/TS16949<\/td>\n<td style=\"text-align: left;\">\u0110\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 cho c\u00e1c d\u00f2ng \u00f4 t\u00f4 v\u00e0 c\u00f4ng nghi\u1ec7p quan tr\u1ecdng.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>X\u00e1c th\u1ef1c \u0111\u1ed9 tin c\u1eady<\/strong><\/td>\n<td style=\"text-align: left;\"><strong>Tu\u00e2n th\u1ee7 PPAP c\u1ea5p 3<\/strong><\/td>\n<td style=\"text-align: left;\">To\u00e0n b\u1ed9 t\u00e0i li\u1ec7u, th\u1eed nghi\u1ec7m v\u1eadt li\u1ec7u v\u00e0 theo d\u00f5i qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t ban \u0111\u1ea7u.<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Th\u1eddi gian d\u1eabn h\u00e0ng t\u00f9y ch\u1ec9nh<\/strong><\/td>\n<td style=\"text-align: left;\">4 \u0111\u1ebfn 5 tu\u1ea7n<\/td>\n<td style=\"text-align: left;\">Ti\u00eau chu\u1ea9n t\u1eeb m\u00f4 h\u00ecnh nhanh \u0111\u1ebfn s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>An to\u00e0n logistics<\/strong><\/td>\n<td style=\"text-align: left;\">D\u1ef1 tr\u1eef an to\u00e0n kho d\u00e0nh ri\u00eang<\/td>\n<td style=\"text-align: left;\">Lo\u1ea1i b\u1ecf s\u1ef1 gi\u00e1n \u0111o\u1ea1n cung \u1ee9ng do bi\u1ebfn \u0111\u1ed9ng v\u1eadn chuy\u1ec3n to\u00e0n c\u1ea7u.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>B\u1eb1ng c\u00e1ch x\u1eed l\u00fd nh\u1eefng <a href=\"https:\/\/nbaem.com\/vi\/magnetic-door-latch-and-types-of-magnets-used\/\">lo\u1ea1i nam ch\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/a> trong h\u1ec7 truy\u1ec1n \u0111\u1ed9ng \u0111i\u1ec7n ti\u00ean ti\u1ebfn v\u00e0 qu\u1ea3n l\u00fd v\u1eadt l\u00fd li\u00ean k\u1ebft tinh t\u1ebf tr\u00ean <strong>b\u1ed9 gh\u00e9p \u0111\u0129a rotor<\/strong>, ch\u00fang t\u00f4i b\u1ea3o v\u1ec7 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n kh\u1ecfi t\u1ed5n th\u1ea5t hi\u1ec7u su\u1ea5t. B\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t b\u1ed9 ph\u1eadn c\u00e2n b\u1eb1ng, s\u1eb5n s\u00e0ng cho d\u00f2ng stator.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 nam ch\u00e2m M\u00f4-men xo\u1eafn D\u00f2ng ch\u1ea3y Tr\u1ee5c<\/h2>\n<h3>C\u00e1c nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y t\u1ed5n th\u1ea5t d\u00f2ng eddy trong nam ch\u00e2m \u0111\u1ed9ng c\u01a1 tr\u1ee5c d\u1ecdc l\u00e0 g\u00ec?<\/h3>\n<p>Bi\u1ebfn \u0111\u1ed5i t\u1eeb tr\u01b0\u1eddng t\u1eeb t\u00ednh t\u1ea7n s\u1ed1 cao l\u00e0 \u0111\u1ed9ng l\u1ef1c ch\u00ednh cho nh\u1eefng t\u1ed5n th\u1ea5t n\u00e0y. Khi m\u1ed9t \u0111\u1ed9ng c\u01a1 tr\u1ee5c d\u1ecdc ho\u1ea1t \u0111\u1ed9ng \u1edf v\u00f2ng tua m\u00e1y cao, c\u00e1c khe stator m\u1edf nhanh v\u00e0 c\u00e1c h\u00f2a nhi\u1ec7t c\u1ee7a d\u00e2y qu\u1ea5n stator t\u1ea1o ra c\u00e1c tr\u01b0\u1eddng t\u1eeb bi\u1ebfn \u0111\u1ed5i tr\u00ean to\u00e0n b\u1ed9 b\u1ed9 gh\u00e9p rotor. Nh\u1eefng tr\u01b0\u1eddng bi\u1ebfn \u0111\u1ed9ng n\u00e0y sinh ra c\u00e1c v\u00f2ng \u0111i\u1ec7n t\u1eed kh\u00f4ng mong mu\u1ed1n\u2014d\u00f2ng eddy\u2014tr\u1ef1c ti\u1ebfp b\u00ean trong c\u00e1c nam ch\u00e2m v\u0129nh vi\u1ec5n \u0111\u1ea5t hi\u1ebfm d\u1eabn t\u1eeb. Do c\u00e1c nam ch\u00e2m n\u00e0y c\u00f3 \u0111i\u1ec7n tr\u1edf t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, d\u00f2ng c\u1ea3m \u1ee9ng nhanh ch\u00f3ng th\u00e0nh nhi\u1ec7t t\u1eadp trung nghi\u00eam tr\u1ecdng, c\u00f3 nguy c\u01a1 m\u1ea5t t\u1eeb t\u00ednh do nhi\u1ec7t n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n<h3>Halbach array c\u1ea3i thi\u1ec7n m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn c\u1ee7a rotor tr\u1ee5c d\u1ecdc nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n<p>M\u1ed9t m\u1ea3ng Halbach s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch s\u1eafp x\u1ebfp kh\u00f4ng gian c\u1ee5 th\u1ec3 c\u1ee7a c\u00e1c nam ch\u00e2m v\u0129nh vi\u1ec5n \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng m\u1eabu tr\u01b0\u1eddng t\u1eeb. B\u1eb1ng c\u00e1ch xen k\u1ebd h\u01b0\u1edbng t\u1eeb c\u1ee7a c\u00e1c ph\u1ea7n nam ch\u00e2m li\u1ec1n k\u1ec1, tr\u01b0\u1eddng t\u1eeb \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i t\u1ef1 nhi\u00ean \u1edf ph\u00eda stator ch\u1ee9c n\u0103ng trong khi b\u1ecb h\u1ee7y b\u1ecf g\u1ea7n nh\u01b0 \u1edf ph\u00eda m\u1eb7t sau.<\/p>\n<table>\n<thead>\n<tr>\n<th style=\"text-align: left;\">\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th style=\"text-align: left;\">C\u1ea5u h\u00ecnh Nam ch\u00e2m chu\u1ea9n<\/th>\n<th style=\"text-align: left;\">T\u00edch h\u1ee3p M\u1ea3ng Halbach<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"text-align: left;\"><strong>Ph\u00e2n ph\u1ed1i flux<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110\u1ed1i x\u1ee9ng \u1edf c\u1ea3 hai b\u00ean<\/td>\n<td style=\"text-align: left;\">T\u1eadp trung n\u1eb7ng v\u00e0o ph\u00eda stator<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>Y\u00eau c\u1ea7u s\u1eaft ph\u00eda sau<\/strong><\/td>\n<td style=\"text-align: left;\">C\u1ea7n \u0111\u0129a rotor l\u00e0m b\u1eb1ng th\u00e9p n\u1eb7ng<\/td>\n<td style=\"text-align: left;\">C\u1ea7n t\u1ed1i thi\u1ec3u ho\u1eb7c kh\u00f4ng c\u1ea7n s\u1eaft ph\u00eda sau<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: left;\"><strong>T\u00e1c \u0111\u1ed9ng l\u00ean m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn<\/strong><\/td>\n<td style=\"text-align: left;\">\u0110 output m\u00f4-men xo\u1eafn c\u01a1 b\u1ea3n<\/td>\n<td style=\"text-align: left;\">M\u00f4-men xo\u1eafn t\u1ed1i \u0111a h\u00f3a m\u00e0 kh\u00f4ng t\u0103ng tr\u1ecdng l\u01b0\u1ee3ng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Khi n\u00e0o k\u1ef9 s\u01b0 n\u00ean ch\u1ecdn Samarium Cobalt (SmCo) thay v\u00ec Neodymium (NdFeB) cho thi\u1ebft k\u1ebf motor pancake?<\/h3>\n<p>Trong khi c\u00e1c c\u1ea5p NdFeB c\u00f3 remanence v\u01b0\u1ee3t tr\u1ed9i \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, SmCo c\u00f3 \u0111\u1ed9 t\u1eeb kh\u00e1ng cao tr\u1edf n\u00ean c\u1ea7n thi\u1ebft d\u01b0\u1edbi c\u00e1c d\u1ea3i nhi\u1ec7t \u0111\u1ed9 c\u1ef1c \u0111oan. K\u1ef9 s\u01b0 n\u00ean ch\u1ec9 \u0111\u1ecbnh SmCo khi nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c v\u01b0\u1ee3t qu\u00e1 180\u00b0C \u0111\u1ebfn 200\u00b0C, ho\u1eb7c khi motor ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0103n mocyt cao m\u00e0 kh\u00f4ng c\u00f3 l\u1edbp ph\u1ee7 b\u1ea3o v\u1ec7. B\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00eam v\u1ec1 c\u00e1ch c\u00e1c v\u1eadt li\u1ec7u n\u00e0y ch\u1ecbu t\u1ea3i nhi\u1ec7t trong h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/nbaem.com\/vi\/solutions-for-heat-dissipation-of-axial-flux-motors\/\">gi\u1ea3i ph\u00e1p t\u1ea3n nhi\u1ec7t cho motor t\u1eeb t\u00ednh tr\u1ee5c d\u1ecdc<\/a>.<\/p>\n<h3>L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng nam ch\u00e2m d\u1ea1ng qu\u1ea1t c\u00f3 nghi\u00eang trong t\u1ed5 h\u1ee3p rotor t\u1eeb tr\u1ee5c d\u1ecdc?<\/h3>\n<p>Nam ch\u00e2m h\u00ecnh kh\u1ed1i ti\u00eau chu\u1ea9n ho\u1eb7c h\u00ecnh wedge t\u1ea1o ra c\u00e1c chuy\u1ec3n ti\u1ebfp t\u1eeb t\u00ednh \u0111\u1ed9t ng\u1ed9t khi \u0111i qua c\u00e1c khe stator, d\u1eabn \u0111\u1ebfn m\u00f4-men b\u1ecb l\u1ec7ch cao. Vi\u1ec7c \u0111\u1ecbnh h\u00ecnh c\u00e1c th\u00e0nh ph\u1ea7n th\u00e0nh h\u00ecnh d\u1ea1ng qu\u1ea1t nghi\u00eang \u0111\u1ea3m b\u1ea3o c\u1ea1nh nam ch\u00e2m chuy\u1ec3n ti\u1ebfp qua c\u00e1c khe stator m\u1ed9t c\u00e1ch t\u1eeb t\u1eeb thay v\u00ec c\u00f9ng l\u00fac.<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><strong>Gi\u1ea3m cogging m\u1ea1nh:<\/strong> L\u00e0m m\u1ecbn c\u00e1c bi\u1ebfn \u0111\u1ed9ng truy\u1ec1n t\u1ea3i m\u00f4-men xo\u1eafn.<\/li>\n<li><strong>Rung \u0111\u1ed9ng t\u1ed1i thi\u1ec3u:<\/strong> B\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n c\u1ea5u tr\u00fac gi\u1eefa kho\u1ea3ng h\u1edf kh\u00f4ng kh\u00ed h\u1eb9p.<\/li>\n<li><strong>Gi\u1ea3m thi\u1ec3u ti\u1ebfng \u1ed3n \u00e2m thanh:<\/strong> Gi\u1ea3m ti\u1ebfng \u1ed3n t\u1ea7n s\u1ed1 cao ph\u1ed5 bi\u1ebfn trong c\u00e1c \u1ee9ng d\u1ee5ng v\u1edbi RPM cao.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<div id=\"references\">\n<h2>Ngu\u1ed3n li\u00ean quan<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.mdpi.com\/1996-1073\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.mdpi.com\/1996-1073<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9ng c\u01a1 t\u1eeb tr\u01b0\u1eddng tr\u1ef1c t\u00e2m (axial flux) nam ch\u00e2m v\u1edbi l\u1edbp l\u00f5i neodymium t\u00f9y ch\u1ec9nh, thi\u1ebft k\u1ebf ph\u00e2n \u0111o\u1ea1n v\u00e0 hi\u1ec7u su\u1ea5t gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng m\u1eadt \u0111\u1ed9 m\u00f4-men xo\u1eafn cao<\/p>","protected":false},"author":1,"featured_media":3945,"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":[31],"tags":[],"class_list":["post-3940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-neodymium-magnet"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2026\/07\/Axial-Flux-Motor-Magnet.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3940","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=3940"}],"version-history":[{"count":1,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3940\/revisions"}],"predecessor-version":[{"id":3946,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/3940\/revisions\/3946"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/3945"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=3940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=3940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=3940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}