1317569 九、發明說明： 【發明所屬之技術領域】 本發明係涉及-種馬達，尤係涉及—種馬達及其定 子結構。 【先4技術】 隨著科學技術與現代工業之不斷發展，馬達已廣泛應 用於風扇等產品中。圖7所示爲習知技術中風扇馬達奸 之磁極>{之結構示意圖，該結構巾係在上、下磁 办斤彎折延伸之上、下極片211、221之同—側之末端，分 別戴角212、222，使上、下極片加、221兩側受轉子（圖 未不）之永久磁鐵感應之面積不同，從而使上、下極片211、 221兩侧所激發之磁力不同，轉子因此依預定之方向旋轉。 上述結構中雖能使上、下極片211、221兩側産生不同 之磁力，從而驅動轉子依預定方向旋轉，然，該上、下極 片211、221會由於其截角212、222而減少轉子之永久磁 鐵丈感應之面積，進而使轉子所受之轉動扭力減小，故需 加以改進。 【發明内容】 有鑒於此，有必要提供一種可驅動轉子依預定方向旋 轉而不減小轉動扭力之馬達及其定子結構。 一種馬達，包括一殼座、一設於該殼座上之一定子組 及罩設於該定子組上之一轉子，該定子組包括一電路板、 設於該電路板上之一線圈座、軸向纏繞於該線圈座上之/ 線圈繞組及分別設於該線圈座兩端之上、下磁極片，所述 1317569 上磁極片自其外緣延伸形成複數上極片，所述下磁1^^ 其外緣延伸形成複數與上述上極片呈交錯設置之下極片， 每-上極片上沿定子組之_方向向外突設—舌部，每一 下極片上沿定子組之圓周方向對應所述舌部形成一截角。 -種馬達定子結構，包括—定子組，該定子組包括一 線圈座及分別設於該線圈座兩端之上、下磁極片，該上磁 極片朝向該下磁極片彎折延伸形成複數上極片，該下磁極 片朝向該上磁極片彎折延伸形成複數下極片，所述上、下 極片沿定子組之圓周方向相互交錯設置，相鄰之上、下極 片其中之-極片上沿定子组之關方向向外突設第一舌 部，另-極片上沿定子組之圓周方向對應所述第一舌 成第一截角。 與習知技術相比，上述馬達通過在其定子組之極片上 突設舌部’除可保證馬達正常啓動外，還可增加極片之面 積，進而增加該等極片與該馬達中轉子内之永久磁鐵之感 應面積，並增加該等極片與線圈座之導磁通量，使該馬達 具有較大之轉動扭力。 … 【實施方式】 下面參照附圖，結合實施例作進一步說明。 圖1所不爲本發明馬達1〇之一較佳實施例之立體分解 圖，該馬達10包括一定子組12及一轉子16，該定子組辺 設置在一殼座18上，該轉子16罩設於該定子組12上。 5亥轉子16包括一輪較161及環繞該輪轂之複數扇 葉162’該輪轂161内設有永久磁鐵（圖未示），該輪轂 1317569 中央向下延伸形成一轉軸（圖未示），該殼座18中間位置 設有一穿設於該定子組12之中柱181，中柱181内設有軸 承182，軸承182中心軸向設有一轴孔183供轉子16之轉 軸穿設，以支撐轉子16旋轉。 該定子組12包括一線圈座121、分別設於該線圈座121 頂端與底端之上、下磁極片122、123、纏繞於線圈座121 上之一線圈繞組127及與該線圈繞組127電連接之一電路 板 124。 請同時參照圖2 ’該線圈座121可爲適用各種直流無 刷馬達之線圈座’該線圈座121包括一環形之上絕緣片125 及一環形之下絕緣片126，該下絕緣片126之中部向上延 伸形成一中空套筒128，該線圈繞組127即軸向纏繞於該 中空套筒128上（如圖1所示），上絕緣片125中間設有一 圓孔129 ’該圓孔129套設於該中空套筒128之上端外緣 以使上、下絕緣片125、126形成緊密配合。 請同時參照圖3A及圖3B，該上、下磁極片122、123 分別設於該上絕緣片125及該下絕緣片126外侧，該上、 下磁極片122、123由磁性材料製成，其中主要以高導磁 率、低磁損之軟磁性材料爲主，如軟磁性金屬材料、非晶 質鐵基磁粉(Amorphous Iron Base)、純鐵粉及其複合材料、 軟磁性非金屬材料等製成。 該上磁極片122包括一貼設於上絕緣片125之本體 130’該本體13〇成圓環形’其與上絕緣片125之大小相當。 該本體130之中心設有一通孔131，該通孔131之邊緣沿1317569 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a motor, and more particularly to a motor and its stator structure. [First 4 Techniques] With the continuous development of science and technology and modern industry, motors have been widely used in products such as fans. Figure 7 is a schematic view showing the structure of a magnetic pole of a fan motor in the prior art, which is on the same side of the upper and lower pole pieces 211, 221 , wearing angles 212 and 222 respectively, so that the upper and lower pole pieces are added, and the two sides of the 221 are different in the area of the permanent magnets of the rotor (not shown), so that the magnetic forces excited on both sides of the upper and lower pole pieces 211 and 221 Unlike the rotor, the rotor therefore rotates in a predetermined direction. In the above structure, although different magnetic forces are generated on both sides of the upper and lower pole pieces 211, 221 to drive the rotor to rotate in a predetermined direction, the upper and lower pole pieces 211, 221 are reduced by the truncated angles 212, 222. The permanent magnet of the rotor senses the area, which in turn reduces the rotational torque of the rotor, so it needs to be improved. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a motor and a stator structure thereof that can drive a rotor to rotate in a predetermined direction without reducing rotational torque. A motor includes a housing, a stator assembly disposed on the housing, and a rotor disposed on the stator assembly. The stator assembly includes a circuit board and a coil base disposed on the circuit board. a coil winding axially wound on the coil base and respectively disposed on both ends of the coil base and a lower pole piece, the 1317569 upper pole piece extending from the outer edge thereof to form a plurality of upper pole pieces, the lower magnetic pole 1 ^^ The outer edge extends to form a plurality of pole pieces which are arranged in a staggered manner with the upper pole piece, and each of the upper pole pieces protrudes outwardly along the direction of the stator group - the tongue portion, and each lower pole piece is along the circumferential direction of the stator group A truncated angle is formed corresponding to the tongue. a motor stator structure comprising a stator assembly, the stator assembly comprising a coil base and a lower magnetic pole piece disposed at opposite ends of the coil base, wherein the upper magnetic pole piece is bent toward the lower magnetic pole piece to form a plurality of upper poles a lower pole piece extending toward the upper pole piece to form a plurality of lower pole pieces, wherein the upper and lower pole pieces are alternately arranged along a circumferential direction of the stator set, and adjacent to the upper and lower pole pieces thereof A first tongue is protruded outwardly along the closing direction of the stator set, and the other pole piece has a first intercept angle corresponding to the first tongue along the circumferential direction of the stator group. Compared with the prior art, the above-mentioned motor can increase the area of the pole piece by protruding the tongue portion on the pole piece of the stator group to increase the area of the pole piece, thereby increasing the pole piece and the rotor in the motor. The sensing area of the permanent magnets increases the magnetic flux of the pole pieces and the coil base, so that the motor has a large rotational torque. [Embodiment] Hereinafter, the present invention will be further described with reference to the accompanying drawings. 1 is a perspective exploded view of a preferred embodiment of a motor 1 of the present invention. The motor 10 includes a subset 12 and a rotor 16. The stator assembly is disposed on a housing 18, and the rotor 16 is covered. It is disposed on the stator group 12. The 5th rotor 16 includes a wheel 161 and a plurality of blades 162 ′ surrounding the hub. The hub 161 is provided with a permanent magnet (not shown). The hub 1317569 extends downwardly to form a rotating shaft (not shown). The middle portion of the seat 18 is provided with a post 181 disposed in the stator set 12, and the middle post 181 is provided with a bearing 182. The bearing 182 is axially disposed with a shaft hole 183 for the rotation of the rotor 16 to support the rotation of the rotor 16. . The stator assembly 12 includes a coil base 121 disposed on a top end and a bottom end of the coil base 121, a lower pole piece 122, 123, a coil winding 127 wound on the coil base 121, and electrically connected to the coil winding 127. One of the circuit boards 124. Referring to FIG. 2 at the same time, the coil holder 121 can be a coil holder for various DC brushless motors. The coil holder 121 includes an annular upper insulating sheet 125 and an annular lower insulating sheet 126. The lower insulating sheet 126 is middle. Extending upwardly to form a hollow sleeve 128, the coil winding 127 is axially wound on the hollow sleeve 128 (as shown in FIG. 1), and a circular hole 129 is defined in the middle of the upper insulating sheet 125. The outer edge of the upper end of the hollow sleeve 128 is such that the upper and lower insulating sheets 125, 126 form a close fit. Referring to FIG. 3A and FIG. 3B, the upper and lower pole pieces 122 and 123 are respectively disposed outside the upper insulating sheet 125 and the lower insulating sheet 126. The upper and lower pole pieces 122 and 123 are made of a magnetic material. Mainly made of soft magnetic materials with high magnetic permeability and low magnetic loss, such as soft magnetic metal materials, amorphous iron-based magnetic powder (Amorphous Iron Base), pure iron powder and its composite materials, soft magnetic non-metallic materials, etc. . The upper pole piece 122 includes a body 130' attached to the upper insulating sheet 125. The body 13 is formed in a circular shape which is comparable to the size of the upper insulating sheet 125. The center of the body 130 is provided with a through hole 131, and the edge of the through hole 131
1317569 其徑向向外凹陷形成複數沿圓周方向間隔設置之凹部 132，以於通孔131之邊緣形成凸凹交錯結構。該本體13〇 自其外緣徑向向外形成複數極端134，該等極端134沿本 體130之圓周方向專距間隔設置，母一極端134之末端朝 向該下磁極片123垂直彎折延伸形成一上極片135，該等 上極片135呈非規則狀，每一上極片135末端之左側形成 一截角136,而其末端之右側向外突設一大致呈三角形之 舌部138。 巴挤一只6$又取卜絶緣片—v〜个祀 140’該本體140亦呈圓環形，其與下絕緣片126之大小书 當。該本體140之中心向上延伸形成一中空軸套141，索 中空軸套141之外徑略小於該下絕緣片126之中空套筒12丨 之内徑’以使該中空軸套141可穿設於該中空套筒128中 且该中空軸套141之内徑略大於該殼座18之中柱181之夕| 徑，以使該中柱181可穿設於該中空轴套141中。該中空 軸套141之頂端沿其轴向向上突設複數突起142，該等突 起142沿圓周方向間隔設置，以於中空轴套i4i之頂端形 成凸凹交錯結構。該本體14〇自其外緣沿徑向向外形成複 數極端U4，該等極端144沿本體14〇圓周方向等距阶 设置，每—極端144之末端朝向該上磁極片122垂直彎: =形成，145,該等下極片145亦呈非規‘折 下極片I45之左側於其近端，即靠近該下磁極片功 彡成—截角146 ’而其右側則沿關並背向該截角 向延伸形成一大致呈三角形之舌部148，其中，該舌1317569 is recessed radially outward to form a plurality of recesses 132 spaced apart in the circumferential direction to form a convex-concave staggered structure at the edge of the through hole 131. The body 13 has a plurality of extreme ends 134 formed radially outward from the outer edge thereof. The terminals 134 are disposed at a distance from each other along the circumferential direction of the body 130. The ends of the mother end 134 are vertically bent toward the lower pole piece 123 to form a The upper pole piece 135 is irregular in shape, and a truncated angle 136 is formed on the left side of the end of each upper pole piece 135, and a substantially triangular tongue 138 is protruded outwardly from the right side of the end. Pultrusion of a 6$ and an insulating sheet - v ~ 祀 140' The body 140 is also annular, which is the size of the lower insulating sheet 126. The center of the body 140 extends upward to form a hollow sleeve 141. The outer diameter of the hollow sleeve 141 is slightly smaller than the inner diameter of the hollow sleeve 12 of the lower insulating sheet 126 so that the hollow sleeve 141 can be worn. The inner diameter of the hollow sleeve 128 and the hollow sleeve 141 is slightly larger than the diameter of the post 181 of the housing 18 so that the center post 181 can pass through the hollow sleeve 141. The top end of the hollow sleeve 141 protrudes upwardly from the axial direction thereof with a plurality of protrusions 142 which are circumferentially spaced apart to form a convex-concave staggered structure at the top end of the hollow sleeve i4i. The body 14 has a plurality of extreme ends U4 formed radially outward from its outer edge. The extreme ends 144 are disposed equidistantly along the circumferential direction of the body 14 and the ends of each of the extreme ends 144 are bent perpendicularly toward the upper pole piece 122: 145, the lower pole piece 145 is also irregularly folded to the left side of the pole piece I45 at its proximal end, that is, close to the lower magnetic pole piece into a truncated angle 146 ' and its right side is closed and facing away from the The truncated angle extends to form a generally triangular tongue 148, wherein the tongue
138與該截角146 Ϊ317569 部148與該截角136相對設置，該舌部 相對設置。 圖4所示爲該下磁極片123及電路板124之另一角度 之分解示意圖，該下磁極片123之本體14〇向下衝壓形成 複數凸點149 ’該電路板124上則設有與該等凸點149相 配合之複數孔洞159，該電路板124中間還設有一配孔 151，以供該殼座18之中柱181穿設於其中。 同時參照圖5，組裝該定子組12時，該下磁極片123 之中空軸套141穿設於該線圈座121之中空套筒128中， 该上磁極片122與該下磁極片123結合，其中該上磁極片 122之通孔131之凹部132與該下磁極片123之中空軸套 141之突起142相互嵌合，以藉由該中空軸套141使該上、 下磁極片122、123構成導磁通路；該上磁極片122之上極 片135與該下磁極片123之下極片145沿圓周方向呈交錯 設置，每一上極片135之舌部138伸向與其相鄰之一下極 片145之截角146，每一下極片145之舌部148伸向與其 相鄰之一上極片135之截角136。該下磁極片123之凸點 149與該電路板124上之孔洞159相配合，以將該上磁極 片122、線圈座121、下磁極片123定位於該電路板124上。 如圖6所示，組裝該馬達1〇時，該定子組12設置在 該殼座18上，其中該殼座18之中柱181依次穿設於該電 路板124之配孔151及该下磁極片123之中空轴套“I中， 該轉子16套置於該定子組12上從而組裝成馬達1〇，藉由 線圈座121上之線圈繞組127與轉子16之永久磁鐵之磁場 1317569 曰修正辱換h η κ 作用驅動轉子16旋轉。 上述馬達10十，該上、下磁極片122、123之每一上、 下極片135、145向其相鄰之另一下、上極片135、145突 叹一舌部138、148，與傳統之馬達結構相比，除可保證馬 達10正常啓動外’還可增加上、下極片135、145之面積， 進而增加該等上、下極片⑶、145與轉子16内之永久磁 鐵之感應面積，並可增加該等上、下極片135、145與中空 轴套141之導磁通量’使該馬達1〇具有較大之轉動扭力。 其""人’上、下極片135、145上設有舌部138、148與截角 136、146，以形成不對稱設置，可使上、下極片135、145 之左右兩側形成不等之磁通量，從而使上、下磁極片122、 123所文轉子16之永久磁鐵之感應力不均等，減少馬達忉 啓動死角現象之發生，以有利於馬達1()之啓動。 綜上所述，本發明符合發明專利要件，妥依法提出專 利申《月1"隹α上所述者僅為本發明之較佳實施例，舉凡 无…本紐π之人士 ’在纽本發鴨 或變化’皆應涵蓋於以下之巾請專娜_。 4 【圖式簡單說明】 圖1係本發明馬達之一較佳實施例之立體分解圖。 所示騎中之上、下絕緣片之結構示意圖。 所示馬達中之上磁極片之結 。 Γ4二馬達中之下磁糾之結構示意圖。 度之分解示意^ 中之下雜片與電路板之另-角 a 1317569138 and the truncated angle 146 Ϊ 317569 portion 148 are disposed opposite the truncated angle 136, and the tongues are disposed opposite each other. 4 is an exploded perspective view of the lower pole piece 123 and the circuit board 124. The body 14 of the lower pole piece 123 is stamped downward to form a plurality of bumps 149'. The plurality of holes 159 are matched with the bumps 149, and a matching hole 151 is defined in the middle of the circuit board 124 for the column 181 of the housing 18 to pass through. Referring to FIG. 5, when the stator assembly 12 is assembled, the hollow sleeve 141 of the lower pole piece 123 is disposed in the hollow sleeve 128 of the coil base 121. The upper pole piece 122 is combined with the lower pole piece 123, wherein The concave portion 132 of the through hole 131 of the upper pole piece 122 and the protrusion 142 of the hollow sleeve 141 of the lower pole piece 123 are fitted to each other to form the upper and lower pole pieces 122, 123 by the hollow sleeve 141. a magnetic path; the upper pole piece 135 of the upper pole piece 122 and the lower pole piece 145 of the lower pole piece 123 are staggered in a circumferential direction, and the tongue 138 of each upper pole piece 135 extends toward a lower pole piece adjacent thereto At a truncated angle 146 of 145, the tongue 148 of each lower pole piece 145 extends toward a truncated angle 136 of one of the upper pole pieces 135 adjacent thereto. The bump 149 of the lower pole piece 123 cooperates with the hole 159 of the circuit board 124 to position the upper pole piece 122, the coil base 121, and the lower pole piece 123 on the circuit board 124. As shown in FIG. 6 , when the motor 1 is assembled, the stator assembly 12 is disposed on the housing 18 , wherein the post 181 of the housing 18 is sequentially disposed through the matching hole 151 of the circuit board 124 and the lower magnetic pole. In the hollow bushing "I" of the piece 123, the rotor 16 is sleeved on the stator set 12 to be assembled into a motor 1〇, and the magnetic field 1317569 of the permanent magnet of the rotor 16 is corrected by the coil winding 127 on the coil base 121 and the permanent magnet of the rotor 16 The rotation of the rotor 16 is driven by the action of h η κ. The motor 10, the upper and lower pole pieces 135, 145 of the upper and lower pole pieces 122, 123 protrude toward the adjacent lower and upper pole pieces 135, 145 adjacent thereto. Singing the tongues 138, 148, in addition to ensuring the normal starting of the motor 10, can increase the area of the upper and lower pole pieces 135, 145, thereby increasing the upper and lower pole pieces (3), 145 and the sensing area of the permanent magnet in the rotor 16, and the magnetic flux of the upper and lower pole pieces 135, 145 and the hollow sleeve 141 can be increased to make the motor 1 〇 have a large rotational torque. Its "" The human 'upper and lower pole pieces 135, 145 are provided with tongues 138, 148 and truncated angles 136, 146 to form no The symmetrical arrangement can form unequal magnetic fluxes on the left and right sides of the upper and lower pole pieces 135, 145, so that the sensing force of the permanent magnets of the upper and lower pole pieces 122, 123 of the rotor 16 is uneven, and the motor 忉 is started. The occurrence of the dead angle phenomenon is beneficial to the start of the motor 1 (). In summary, the present invention complies with the invention patent requirements, and the patent application "Month 1" is only a preferred implementation of the present invention. For example, if there is no... the person of this New π 'in New Zealand, duck or change' should be covered in the following towels. Please use the following. 4 [Simple diagram of the drawing] Figure 1 is a preferred embodiment of the motor of the present invention. The three-dimensional exploded view shows the structure of the upper and lower insulating sheets in the ride. The knot of the upper pole piece in the motor shown. 结构4 The structure of the magnetic correction in the lower part of the motor. The decomposition of the degree is shown below Miscellaneous and circuit board another - corner a 1317569
圖5係圖1所示馬達中之定子組之立體組裝圖。 圖6係圖1所示馬達之立體組裝圖。 圖7係習知技術中馬達定子之磁極片之結構示意圖。 【主要元件符號說明】 <本發明> 馬達 10 線圈座 121 下磁極片 123 上絕緣片 125 線圈繞組 127 圓孔 129 通孔 131 上極片 135 舌部 138 、 148 突起 142 凸點 149 孔洞 159 輪轂 161 殼座 18 軸承 182 <習知技術> 上磁極片 21 上極片 211 截角 212、222 定子組 12 上磁極片 122 電路板 124 下絕緣片 126 中空套筒 128 本體 130、140 極端 134、144 截角 136、146 中空軸套 141 下極片 145 配孔 151 轉子 16 扇葉 162 中柱 181 軸孔 183 下磁極片 22 下極片 221 12Figure 5 is an assembled, isometric view of the stator assembly of the motor of Figure 1. Figure 6 is a perspective assembled view of the motor of Figure 1. Fig. 7 is a schematic view showing the structure of a pole piece of a motor stator in the prior art. [Main component symbol description] <Invention> Motor 10 Coil holder 121 Lower pole piece 123 Upper insulating sheet 125 Coil winding 127 Round hole 129 Through hole 131 Upper pole piece 135 Tongue 138, 148 Projection 142 Bump 149 Hole 159 Hub 161 Housing 18 Bearing 182 <General Technology> Upper pole piece 21 Upper pole piece 211 Truncated 212, 222 Stator set 12 Upper pole piece 122 Circuit board 124 Lower insulation piece 126 Hollow sleeve 128 Body 130, 140 Extreme 134, 144 truncated angle 136, 146 hollow bushing 141 lower pole piece 145 matching hole 151 rotor 16 blade 162 middle column 181 shaft hole 183 lower pole piece 22 lower pole piece 221 12