TW202101861A - Axial-gap rotating electric machine - Google Patents

Axial-gap rotating electric machine Download PDF

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TW202101861A
TW202101861A TW109104925A TW109104925A TW202101861A TW 202101861 A TW202101861 A TW 202101861A TW 109104925 A TW109104925 A TW 109104925A TW 109104925 A TW109104925 A TW 109104925A TW 202101861 A TW202101861 A TW 202101861A
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Taiwan
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rotor
base
resin
groove
permanent magnet
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TW109104925A
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Chinese (zh)
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TWI703795B (en
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床井博洋
池田賢二
中原瑞紀
鈴木利文
高橋秀一
米岡恭永
酒井亨
高橋大作
櫻井潤
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日商日立產機系統股份有限公司
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

This axial-gap rotating electric machine (1000) is provided with a rotor (200) and a stator (100) disposed facing the rotor (200) with a gap interposed therebetween, said gap being provided along the shaft center (700) direction of the rotor (200). The rotor (200) is provided with: a base (220); a groove (222) provided on the end surface (221) of the base (220) on the stator (100) side thereof along the circumferential direction of the rotor (200); a magnet (210) disposed in the groove (222); and a resin (230) for fixing the magnet (210) in the groove (222) by molding. The base (220) has recessed portions (2231), (2243) that are in communication with the groove (222) and are filled with the resin (230). Part of the base (220) is adjacent to the stator (100) side of the resin (230), which is filled in the recessed portions (2231), (2243).

Description

軸向間隙型旋轉電機Axial gap type rotating motor

本發明係關於一種軸向間隙型旋轉電機。The invention relates to an axial gap type rotating electric machine.

軸向間隙型旋轉電機具有將圓盤狀之轉子與定子於旋轉軸心方向上對向配置之構造。成為轉矩之產生面之轉子與定子之對向面面積與轉子直徑之平方成正比地增加，故藉由設為縱橫比較小之形狀、即直徑方向尺寸大於軸長之形狀，而具有容易提昇輸出或效率等特性之優點。The axial gap type rotating electric machine has a structure in which a disc-shaped rotor and a stator are arranged facing each other in the direction of the rotation axis. The area of the facing surfaces of the rotor and the stator, which are the torque generating surfaces, increases in proportion to the square of the rotor diameter. Therefore, it is easy to improve by setting it to a shape with a small aspect ratio, that is, a shape with a diameter larger than the shaft length. Advantages of characteristics such as output or efficiency.

該軸向間隙型旋轉電機之轉子中，有如下轉子，該轉子包含緊固於旋轉軸之磁軛、及配置於該磁軛表面之磁鐵，且利用樹脂將磁鐵與磁軛一體模塑而成。例如，專利文獻1中，揭示有一種轉子，該轉子係藉由將配置於背軛之一端面上之永久磁鐵模塑成形之包含合成樹脂之固定機構而保持於背軛。 [先前技術文獻] [專利文獻]The rotor of the axial gap type rotating electric machine includes the following rotor. The rotor includes a yoke fastened to the rotating shaft and a magnet arranged on the surface of the yoke. The magnet and the yoke are integrally molded by resin . For example, Patent Document 1 discloses a rotor that is held on the back yoke by a fixing mechanism containing synthetic resin formed by molding permanent magnets arranged on one end surface of the back yoke. [Prior Technical Literature] [Patent Literature]

[專利文獻1]日本專利特開2008-86142號公報[Patent Document 1] Japanese Patent Laid-Open No. 2008-86142

[發明所欲解決之問題][The problem to be solved by the invention]

專利文獻1中揭示之軸向間隙型旋轉電機之轉子中，模塑成形之包含合成樹脂之固定機構與外部大氣接觸，故存在因氧等環境物質或外部大氣之熱而劣化，從而無法保持永久磁鐵之虞。本發明之目的在於提供一種即便將磁鐵與磁軛一體模塑而成之轉子之樹脂劣化亦可防止轉子破損之軸向間隙型旋轉電機。 [解決問題之技術手段]In the rotor of the axial gap type rotating electrical machine disclosed in Patent Document 1, the molded fixing mechanism containing synthetic resin is in contact with the outside atmosphere, so it is degraded by environmental substances such as oxygen or the heat of the outside atmosphere, and cannot be maintained permanently. The fear of magnets. The object of the present invention is to provide an axial gap type rotating electric machine that prevents damage to the rotor even if the resin of the rotor formed by integrally molding the magnet and the yoke is deteriorated. [Technical means to solve the problem]

為解決上述課題，本發明之軸向間隙型旋轉電機係具備轉動子、及隔著沿上述轉動子之中心軸方向設置之間隙而與上述轉動子對向配之固定子者，且其特徵在於：上述轉動子具備：基台、沿上述轉動子之周向設置於上述基台中之固定子側之端面之槽、配置於上述槽之磁鐵、及將上述磁鐵塑模固定於上述槽內之樹脂，上述基台具有與上述槽連通且被填充上述樹脂之凹部，於填充至上述凹部之樹脂之固定子側，鄰接著上述基台之一部分。 [發明之效果]In order to solve the above-mentioned problems, the axial gap type rotating electrical machine of the present invention includes a rotor and a stator that is opposed to the rotor with a gap provided along the central axis of the rotor, and is characterized by : The rotor includes: a base, a groove provided on the end surface of the base on the fixed side of the base along the circumferential direction of the rotor, a magnet arranged in the groove, and a resin for fixing the magnet mold in the groove The base has a recess connected to the groove and filled with the resin, and is adjacent to a part of the base on the side of the fixing member of the resin filled in the recess. [Effects of Invention]

根據本發明，可防止利用樹脂將磁鐵與磁軛一體模塑而成之轉子中之該樹脂之劣化及破損，故可使轉子長壽命化。上述以外之課題、構成及效果可由以下實施形態之說明而明確。According to the present invention, it is possible to prevent deterioration and breakage of the resin in a rotor formed by integrally molding a magnet and a yoke with resin, so that the life of the rotor can be extended. Problems, constitutions, and effects other than the above are clarified by the description of the following embodiment.

以下，使用圖式，對本發明之第1～第8實施形態之軸向間隙型馬達之轉子之構成及動作進行說明。再者，各圖中，相同符號表示相同部分。Hereinafter, the structure and operation of the rotor of the axial gap type motor of the first to eighth embodiments of the present invention will be described using drawings. In addition, in each figure, the same symbol represents the same part.

[第1實施形態] 圖1A係使用有本發明之第1實施形態之轉子之軸向間隙型馬達之剖面立體圖，圖1B係於第1實施形態之轉子中嵌合有軸之剖面立體圖，圖1C係本發明之第1實施形態之轉子之放大剖視圖。再者，圖1B之轉子為瞭解永久磁鐵及磁軛內部之形狀而省略樹脂。[First Embodiment] Fig. 1A is a cross-sectional perspective view of an axial gap type motor using the rotor of the first embodiment of the present invention, Fig. 1B is a cross-sectional perspective view of a shaft fitted into the rotor of the first embodiment, and Fig. 1C is the first embodiment of the present invention 1 An enlarged cross-sectional view of the rotor of the embodiment. Furthermore, in the rotor of FIG. 1B, the resin is omitted in order to understand the shape of the permanent magnet and the inner yoke.

如圖1A所示，軸向間隙型馬達1000(以下，稱為馬達1000)係以由2個轉子(轉動子)200夾著定子(固定子)100之方式面對向之雙轉子型旋轉電機。馬達1000具備定子100、轉子200、殼體300、支架400、軸500、及軸承600。As shown in Fig. 1A, the axial gap type motor 1000 (hereinafter referred to as the motor 1000) is a dual-rotor type rotating electrical machine that faces the stator (fixer) 100 with two rotors (rotators) 200 sandwiching them. . The motor 1000 includes a stator 100, a rotor 200, a housing 300, a bracket 400, a shaft 500, and a bearing 600.

定子100具有以軸500為中心環狀地排列之複數個(本實施形態中為12個)鐵芯元件140。各鐵芯元件140具備：作為兩端面為大致梯形之柱體之鐵芯110、被覆鐵芯110之側面之筒狀之繞線筒(未圖示)、及介隔繞線筒捲繞於鐵芯110之側面之線圈120。環狀地排列之12個鐵芯元件140各自於殼體300內藉由樹脂130而一體模塑加工，成形為1個定子100。作為鐵芯110，能夠利用電磁鋼板、非晶質金屬之積層體、壓粉磁心等軟磁體。The stator 100 has a plurality of (12 in this embodiment) iron core elements 140 arranged annularly with the shaft 500 as the center. Each iron core element 140 has: an iron core 110 as a column with substantially trapezoidal end faces, a cylindrical bobbin (not shown) covering the side surface of the iron core 110, and an intermediate bobbin wound around the iron The coil 120 on the side of the core 110. The 12 iron core elements 140 arranged in a ring shape are each integrally molded with resin 130 in the housing 300 to form a stator 100. As the iron core 110, a soft magnetic material such as an electromagnetic steel sheet, a laminate of amorphous metal, and a powder magnetic core can be used.

轉子200隔著沿軸心700方向設置之間隙而與定子100對向。與轉子200嵌合之軸500隔著軸承600而旋轉自如地藉由支架400支持，與藉由使電流過定子100而旋轉之轉子200共轉，輸出轉子200之旋轉力。支架400隔著軸承600將軸500旋轉自如地支持，並且固定於殼體300之兩端，保護轉子200。於殼體300之外周側面，設置有具備與線圈120電性連接之端子之端子台(未圖示)，可將1次側之電線與2次側之電線電性連接。The rotor 200 opposes the stator 100 via a gap provided in the direction of the shaft center 700. The shaft 500 fitted with the rotor 200 is rotatably supported by the bracket 400 via the bearing 600, and co-rotates with the rotor 200 that rotates by passing current through the stator 100, and outputs the rotational force of the rotor 200. The bracket 400 rotatably supports the shaft 500 through the bearing 600 and is fixed to both ends of the housing 300 to protect the rotor 200. A terminal block (not shown) with terminals electrically connected to the coil 120 is provided on the outer peripheral side of the housing 300, which can electrically connect the wires on the primary side and the wires on the secondary side.

如圖1B所示，轉子200具備：大致圓盤狀之基台220；槽222，其沿轉子200之周向設置於基台220之定子100側之端面221；永久磁鐵(磁鐵)210，其配置於槽222；及樹脂230，其將永久磁鐵210塑模固定於槽222內(參照圖1A)。As shown in FIG. 1B, the rotor 200 includes: a substantially disc-shaped base 220; a slot 222 provided on the end surface 221 on the stator 100 side of the base 220 along the circumferential direction of the rotor 200; a permanent magnet (magnet) 210, which Disposed in the groove 222; and resin 230, which fixes the permanent magnet 210 in the groove 222 (see FIG. 1A).

基台220係包含鐵或壓粉磁心等軟磁體，且發揮軛鐵(磁軛)作用之大致圓盤狀的構件，且支持永久磁鐵210，並且以共轉之方式與軸500結合。又，於基台220之定子100側之端面221，如上所述沿轉子200之周向設置有槽222。永久磁鐵210係環狀之圓板，且配置於基台220之槽222。The base 220 is a substantially disc-shaped member that includes a soft magnet such as iron or a powder magnetic core and functions as a yoke (yoke), supports the permanent magnet 210, and is coupled to the shaft 500 in a co-rotating manner. In addition, the end surface 221 of the base 220 on the stator 100 side is provided with a groove 222 along the circumferential direction of the rotor 200 as described above. The permanent magnet 210 is an annular circular plate and is arranged in the groove 222 of the base 220.

如圖1C所示，槽222包含內周壁223、外周壁224、及底面225。As shown in FIG. 1C, the groove 222 includes an inner peripheral wall 223, an outer peripheral wall 224, and a bottom surface 225.

內周壁223於將永久磁鐵210配置於槽222時，於與永久磁鐵210之內周側面2102之間形成用以填充樹脂230之空間。因此，內周壁223距軸心700之距離小於永久磁鐵210之內周側面2102距軸心700之距離。又，於內周壁223設置有凹部2231。The inner peripheral wall 223 forms a space for filling the resin 230 between the inner peripheral wall 223 and the inner peripheral surface 2102 of the permanent magnet 210 when the permanent magnet 210 is arranged in the groove 222. Therefore, the distance between the inner peripheral wall 223 and the shaft center 700 is smaller than the distance between the inner peripheral side surface 2102 of the permanent magnet 210 and the shaft center 700. In addition, a recess 2231 is provided in the inner peripheral wall 223.

於外周壁224之底面225側，形成有永久磁鐵210之外周側面2101抵接之小徑面2241。而且，於外周壁224之定子100側，形成有大徑面2242，於小徑面2241與大徑面2242之間之外周壁224形成有凹部2243。On the bottom surface 225 side of the outer peripheral wall 224, a small-diameter surface 2241 against which the outer peripheral side surface 2101 of the permanent magnet 210 abuts is formed. Furthermore, on the stator 100 side of the outer peripheral wall 224, a large diameter surface 2242 is formed, and a recess 2243 is formed on the outer peripheral wall 224 between the small diameter surface 2241 and the large diameter surface 2242.

再者，本實施形態中，將凹部2231形成於內周壁223之全周，但亦可僅形成於內周壁223之一部分。又，將凹部2243形成於外周壁224之全周，但同樣地亦可僅形成於外周壁224之一部分而非全周。再者，為提昇填充至凹部2231、2243之樹脂230之強度，必須降低離心力或伴隨溫度上升等產生於樹脂230之應力。因此，於加工凹部2231、2243之情形時，較佳於角設置R倒角。Furthermore, in this embodiment, the recess 2231 is formed on the entire circumference of the inner peripheral wall 223, but it may be formed only on a part of the inner peripheral wall 223. In addition, the recess 2243 is formed on the entire circumference of the outer peripheral wall 224, but similarly, it may be formed only on a part of the outer peripheral wall 224 instead of the entire circumference. Furthermore, in order to increase the strength of the resin 230 filled in the recesses 2231 and 2243, it is necessary to reduce the centrifugal force or the stress generated in the resin 230 accompanying temperature rise. Therefore, in the case of processing the concave portions 2231 and 2243, it is preferable to set the R chamfer on the corner.

永久磁鐵210之外周側面2101與外周壁224之小徑面2241抵接。因此，永久磁鐵210於基台220之周向上固定。又，永久磁鐵210之內周側面2102形成為於軸心700方向上內徑朝向定子100側擴大。即，於永久磁鐵210形成有內徑朝向定子100側擴大之孔。再者，永久磁鐵210藉由黏結磁鐵或鐵氧體磁鐵而形成，產生磁場，對自定子100之鐵芯元件140產生之磁力反覆進行吸引、排斥，使轉子200以軸心700為中心旋轉。因此，以具備與交流電源之相位數及鐵芯元件140之個數對應之磁極數之方式，於環狀之永久磁鐵210之表面進行磁化。The outer peripheral side surface 2101 of the permanent magnet 210 is in contact with the small diameter surface 2241 of the outer peripheral wall 224. Therefore, the permanent magnet 210 is fixed in the circumferential direction of the base 220. In addition, the inner peripheral side surface 2102 of the permanent magnet 210 is formed such that its inner diameter in the direction of the shaft center 700 is enlarged toward the stator 100 side. That is, the permanent magnet 210 is formed with a hole whose inner diameter is enlarged toward the stator 100 side. Furthermore, the permanent magnet 210 is formed by bonding magnets or ferrite magnets to generate a magnetic field to repeatedly attract and repel the magnetic force generated from the iron core element 140 of the stator 100, so that the rotor 200 rotates around the axis 700. . Therefore, the surface of the ring-shaped permanent magnet 210 is magnetized in a manner having the number of magnetic poles corresponding to the number of phases of the AC power supply and the number of core elements 140.

於基台220之槽222中配置有永久磁鐵210與藉由模塑成形而填充之樹脂230，且將永久磁鐵210塑模固定於基台220。於外周壁224之大徑面2242及凹部2243與永久磁鐵210之外周側面2101之間、及內周壁223與永久磁鐵210之內周側面2102之間，填充樹脂230並固化。又，基台220與永久磁鐵210、樹脂230較佳為使用線膨脹係數接近之材料製作，且使產生於轉子200之熱應力降低。A permanent magnet 210 and a resin 230 filled by molding are arranged in the groove 222 of the base 220, and the permanent magnet 210 is fixed to the base 220 by a mold. Between the large-diameter surface 2242 and the recess 2243 of the outer peripheral wall 224 and the outer peripheral side surface 2101 of the permanent magnet 210, and between the inner peripheral wall 223 and the inner peripheral side surface 2102 of the permanent magnet 210, the resin 230 is filled and cured. In addition, the base 220, the permanent magnet 210, and the resin 230 are preferably made of materials with close linear expansion coefficients, and the thermal stress generated in the rotor 200 is reduced.

而且，基台220具有與槽222連通並被填充樹脂230之凹部2231、2243，於凹部2231、2243中填充樹脂230。若著眼於基台以外之構成，則藉由樹脂進入凹部2231、2243而形成凸部2301、2302。而且，於填充至2個凹部2231、2243之樹脂230即凸部2301、2302之定子100側(圖1C中之下側)，分別鄰接著基台220之一部分(基台220中之凹部2231、2243之定子100側之部分)即擋止部2232、2244。可藉由擋止部2232、2244而防止轉子之磁鐵被磁吸引力吸引至定子側而自基台脫落。換言之，基台220具備凹部2231、2243，該等凹部2231、2243設置為於包含轉子200之軸心700之轉子200之剖面，沿著與軸心700平行之軸線A-A、B-B方向觀察轉子200時，於基台220之一部分即擋止部2232、2244之定子100之相反側鄰接地出現樹脂230之一部分即凸部2301、2302。又，填充至凹部2231、2243之樹脂230即凸部2301、2302被凹部2231、2243與樹脂230覆蓋，且配備於轉子200之內部。再者，本實施形態之基台220具有2個與槽222連通且被填充樹脂230之凹部，但亦可僅具備1個凹部。Furthermore, the base 220 has recesses 2231 and 2243 which are connected to the groove 222 and filled with resin 230, and the recesses 2231 and 2243 are filled with resin 230. Focusing on the structure other than the base, the convex portions 2301 and 2302 are formed by the resin entering the concave portions 2231 and 2243. Furthermore, on the stator 100 side (the lower side in FIG. 1C) of the resin 230 filled in the two concave portions 2231 and 2243, that is, the convex portions 2301 and 2302, respectively adjacent to a part of the base 220 (the concave portion 2231 in the base 220) 2243 (the part on the stator 100 side) is the stop portion 2232, 2244. The stopper portion 2232, 2244 can prevent the magnet of the rotor from being attracted to the stator side by magnetic attraction and falling off from the base. In other words, the base 220 is provided with recesses 2231 and 2243, and the recesses 2231 and 2243 are provided in the cross section of the rotor 200 including the shaft center 700 of the rotor 200. When the rotor 200 is viewed along the axis AA and BB directions parallel to the shaft center 700 On the opposite side of the stator 100 of the stop portion 2232, 2244, which is a part of the base 220, the convex portions 2301 and 2302, which are part of the resin 230, appear adjacently. In addition, the resin 230 filled in the recesses 2231 and 2243, that is, the protrusions 2301 and 2302, is covered by the recesses 2231 and 2243 and the resin 230, and is arranged inside the rotor 200. In addition, the base 220 of this embodiment has two recessed parts which communicate with the groove 222 and are filled with resin 230, but it may have only one recessed part.

具有此種構成之馬達1000係以如下方式動作。將來自變頻器之輸出線連接於端子台之1次側，對線圈120通電3相交流電流。藉此，於定子100形成旋轉磁場，與藉由永久磁鐵210而形成於轉子200之直流磁場吸引排斥，產生轉矩。於馬達驅動時，對配置於轉子200之槽222中之永久磁鐵210不僅產生其直徑方向上產生之離心力，而且於軸心700方向之定子100側產生磁吸引力。The motor 1000 having such a structure operates in the following manner. Connect the output wire from the inverter to the primary side of the terminal block, and energize the coil 120 with 3-phase AC current. Thereby, a rotating magnetic field is formed in the stator 100, which attracts and repels the DC magnetic field formed in the rotor 200 by the permanent magnet 210, and generates torque. When the motor is driven, the permanent magnet 210 arranged in the slot 222 of the rotor 200 not only generates a centrifugal force in the diameter direction, but also generates a magnetic attraction force on the stator 100 side in the direction of the axis 700.

本實施形態中，基台220具有與槽222連通且被填充樹脂230之凹部2231、2243，於填充至該凹部2231、2243之樹脂230即凸部2301、2302之定子100側，以阻礙樹脂230沿軸心700方向移動之方式鄰接著基台220之一部分(凹部2231、2243之定子100側之部分)即擋止部2232、2244。該構造中，因凹部2231、2243內之樹脂230即凸部2301、2302位於轉子200之內部，而將凹部2231、2243內之樹脂230即凸部2301、2302與外部大氣之接觸阻隔。因此，可抑制凹部2231、2243內之樹脂230即凸部2301、2302如轉子200之表面上露出之樹脂230般因氧等環境物質或外部大氣之熱而容易劣化，故可防止因轉子200之持續使用導致永久磁鐵210之保持功能(軸心700方向上之永久磁鐵210之拘束功能)降低。再者，本實施形態中，將凹部2231以環狀形成於內周壁223之全周，將凹部2241以環狀形成於槽222之外周壁224之全周，故可進一步增強永久磁鐵210之保持功能。In this embodiment, the base 220 has recesses 2231 and 2243 which are connected to the groove 222 and filled with resin 230. The resin 230 filled in the recesses 2231 and 2243, that is, the protrusions 2301 and 2302, is on the stator 100 side to hinder the resin 230. The movement in the direction of the axis 700 is adjacent to a part of the base 220 (the part on the stator 100 side of the recessed parts 2231 and 2243), that is, the stop part 2232, 2244. In this structure, since the resin 230 in the recesses 2231 and 2243, that is, the protrusions 2301, 2302, is located inside the rotor 200, the resin 230 in the recesses 2231, 2243, that is, the protrusions 2301, 2302, is blocked from contact with the outside atmosphere. Therefore, the resin 230 in the concave portions 2231 and 2243, that is, the convex portions 2301 and 2302, is prevented from being easily degraded due to environmental substances such as oxygen or the heat of the outside atmosphere like the resin 230 exposed on the surface of the rotor 200. Therefore, it can prevent the rotor 200 from being damaged Continuous use results in a reduction in the holding function of the permanent magnet 210 (the restraining function of the permanent magnet 210 in the direction of the axis 700). Furthermore, in the present embodiment, the recess 2231 is formed in a ring shape on the entire circumference of the inner peripheral wall 223, and the recess 2241 is formed in a ring shape on the entire circumference of the outer peripheral wall 224 of the groove 222, so that the permanent magnet 210 can be further enhanced. Features.

本實施形態中，藉由使樹脂230與永久磁鐵210介隔內徑朝向定子100側擴大之永久磁鐵210之內周側面2102相互抵接，而增強樹脂230對永久磁鐵210之保持功能(軸心700方向之永久磁鐵210之拘束功能)。即，與大致鉛直地設置永久磁鐵210之內周側面之情形相比，可將永久磁鐵210牢固地保持於基台220上。In this embodiment, the resin 230 and the permanent magnet 210 abut against each other via the inner peripheral surface 2102 of the permanent magnet 210 whose inner diameter is enlarged toward the stator 100 side, thereby enhancing the resin 230 to hold the permanent magnet 210 (axial center). The restraint function of the permanent magnet 210 in the direction of 700). That is, compared with the case where the inner peripheral side surface of the permanent magnet 210 is installed substantially vertically, the permanent magnet 210 can be firmly held on the base 220.

又，藉由於基台220之內周壁223及外周壁224與永久磁鐵210之間設置間隙，可提昇對於永久磁鐵210之洩漏磁通之磁阻，抑制馬達輸出或效率之低下。又，藉由使用環狀之永久磁鐵210，即使離心力變大亦可防止永久磁鐵210飛散。In addition, by providing a gap between the inner peripheral wall 223 and the outer peripheral wall 224 of the base 220 and the permanent magnet 210, the magnetic resistance to the leakage magnetic flux of the permanent magnet 210 can be increased, and the reduction of motor output or efficiency can be suppressed. In addition, by using the ring-shaped permanent magnet 210, the permanent magnet 210 can be prevented from flying away even if the centrifugal force increases.

又，基台220藉由利用車床對經鑄造或鍛造製作而成之圓盤狀之構造切削槽222而可簡單地追加加工凹部2231、2243，從而可以低成本製作。In addition, the base 220 can easily add the recesses 2231 and 2243 by using a lathe to process the disc-shaped structural cutting groove 222 produced by casting or forging, and can be produced at low cost.

[第2實施形態] 其次，使用圖式對本發明之第2實施形態之轉子進行說明。圖2A係將軸500嵌合於本發明之第2實施形態之轉子201之剖面立體圖，圖2B係本發明之第2實施形態之轉子201之放大剖視圖。再者，圖2A之反負載側之轉子201(下側)為獲知永久磁鐵211及基台220內部之形狀而省略樹脂231。[Second Embodiment] Next, the rotor according to the second embodiment of the present invention will be explained using drawings. 2A is a cross-sectional perspective view of the rotor 201 in the second embodiment of the invention where the shaft 500 is fitted, and FIG. 2B is an enlarged cross-sectional view of the rotor 201 in the second embodiment of the invention. Furthermore, the rotor 201 (lower side) on the opposite load side of FIG. 2A is to know the shape of the permanent magnet 211 and the base 220 and the resin 231 is omitted.

本實施形態與第1實施形態不同之處在於永久磁鐵211與樹脂231之形狀。因此，馬達之剖面因與圖1A相同而省略，對於與第1實施例重複之零件、構成等，原則上省略說明。This embodiment is different from the first embodiment in the shape of the permanent magnet 211 and the resin 231. Therefore, the cross-section of the motor is omitted because it is the same as that of FIG. 1A, and the description of the parts and structures that are the same as those in the first embodiment is omitted in principle.

如圖2A所示，本實施形態之轉子201具備：大致圓盤狀之基台220；槽222，其沿轉子201之周向設置於基台220之定子100側之端面221；磁極數之永久磁鐵211，其等以特定之間隔配置於槽222；及樹脂231，其將磁極數之永久磁鐵211塑模固定於槽222內。基台220因與第1實施形態相同而省略說明。永久磁鐵211係扇狀之板，且於基台220之槽222內配置有磁極數。As shown in FIG. 2A, the rotor 201 of this embodiment includes: a substantially disc-shaped base 220; a slot 222 provided on the end surface 221 of the stator 100 of the base 220 along the circumferential direction of the rotor 201; The magnets 211 are arranged in the grooves 222 at specific intervals; and the resin 231 which molds the permanent magnets 211 with the number of magnetic poles in the grooves 222. Since the base 220 is the same as the first embodiment, the description thereof will be omitted. The permanent magnet 211 is a fan-shaped plate, and the number of magnetic poles is arranged in the groove 222 of the base 220.

如圖2B所示，永久磁鐵211之外周側面2111抵接於小徑面2241。再者，與第1實施形態同樣地，永久磁鐵211藉由黏結磁鐵或鐵氧體磁鐵而形成，產生磁場，反覆對自定子100之鐵芯元件140產生之磁力進行吸引、排斥，使轉子201以軸心700為中心旋轉。因此，於基台220之槽222內配置有與交流電源之相位數及鐵芯元件140之個數對應之磁極數之永久磁鐵211。As shown in FIG. 2B, the outer peripheral side surface 2111 of the permanent magnet 211 abuts the small diameter surface 2241. Furthermore, as in the first embodiment, the permanent magnet 211 is formed by bonding magnets or ferrite magnets, generates a magnetic field, and repeatedly attracts and repels the magnetic force generated from the iron core element 140 of the stator 100 to make the rotor 201 rotates around the axis 700. Therefore, the permanent magnets 211 of the number of magnetic poles corresponding to the number of phases of the AC power source and the number of core elements 140 are arranged in the slot 222 of the base 220.

又，配置於基台220之槽222之永久磁鐵211之周圍被樹脂231填充。永久磁鐵211之內周側面2112形成為與槽222之內周壁223之間隔於軸心700方向上朝向定子100側擴大。因此，永久磁鐵211因與永久磁鐵211之內周側面2112抵接之樹脂231而無法朝軸心700方向之定子100側與基台220之內徑方向移動。又，磁極數之永久磁鐵211之外周側面2111分別與小徑面2241抵接，且於與大徑面2242及凹部2243之間填充有樹脂230，故無法朝向基台220之外徑方向移動。In addition, the periphery of the permanent magnet 211 arranged in the groove 222 of the base 220 is filled with resin 231. The inner peripheral side surface 2112 of the permanent magnet 211 is formed so that the distance from the inner peripheral wall 223 of the groove 222 is enlarged toward the stator 100 in the direction of the shaft center 700. Therefore, the permanent magnet 211 cannot move in the direction of the inner diameter of the stator 100 and the base 220 in the direction of the axis 700 due to the resin 231 that abuts on the inner peripheral side surface 2112 of the permanent magnet 211. In addition, the outer peripheral side surface 2111 of the permanent magnet 211 with the number of magnetic poles is in contact with the small diameter surface 2241, and the resin 230 is filled between the large diameter surface 2242 and the recess 2243, so it cannot move in the outer diameter direction of the base 220.

而且，與第1實施形態同樣地，於構成基台220之槽222之內周壁223與外周壁224分別形成有凹部2231與凹部2243，且填充有樹脂231，形成凸部2311、2312。因此，基台220具有與槽222連通且被填充樹脂231之凹部2231、2243，於填充至凹部2231、2243之樹脂231即凸部2311、2312之定子100側，以阻礙樹脂231沿軸心700方向移動之方式分別鄰接著基台220之一部分(凹部2231、2243之定子100側之部分)即擋止部2232、2244。即，基台220具備凹部2231、2243，該等凹部2231、2243設置為於包含轉子201之軸心700之轉子201之剖面，沿著與軸心700平行之軸線A-A、B-B方向觀察轉子201時，於基台220之一部分即擋止部2232、2244之定子100之相反側鄰接地出現樹脂231之一部分即凸部2311、2312。又，填充至凹部2231、2243之樹脂231即凸部2311、2312係被凹部2231、2243與樹脂231覆蓋，且配備於轉子201之內部。In addition, as in the first embodiment, the inner peripheral wall 223 and the outer peripheral wall 224 of the groove 222 constituting the base 220 are respectively formed with recesses 2231 and recesses 2243, and are filled with resin 231 to form protrusions 2311 and 2312. Therefore, the base 220 has recesses 2231, 2243 that are connected to the groove 222 and filled with resin 231, and the resin 231 filled in the recesses 2231, 2243, that is, the protrusions 2311, 2312, is on the stator 100 side to prevent the resin 231 from being along the axis 700. The way of directional movement is adjacent to a part of the base 220 (the part on the stator 100 side of the recessed parts 2231 and 2243), namely the stop parts 2232, 2244. That is, the base 220 is provided with recesses 2231 and 2243, and the recesses 2231 and 2243 are provided in the cross section of the rotor 201 including the shaft center 700 of the rotor 201. When the rotor 201 is viewed along the axis AA and BB directions parallel to the shaft center 700 , A part of the resin 231, namely the convex part 2311, 2312, is adjacent to the opposite side of the stator 100 of the stop part 2232, 2244 of the base 220. In addition, the resin 231 filled in the concave portions 2231 and 2243, that is, the convex portions 2311, 2312, is covered by the concave portions 2231, 2243 and the resin 231, and is provided inside the rotor 201.

又，樹脂231不僅填充至基台220之槽222之外周壁224與永久磁鐵211之外周側面2111之間、及基台220之內周壁223與永久磁鐵211之內周側面2112之間，而且亦填充至基台220之周向上相鄰之永久磁鐵211之間。因此，永久磁鐵211無法於周向移動。又，填充至周向上相鄰之永久磁鐵211之間之樹脂231使填充至基台220之槽222之外周壁224與永久磁鐵211之外周側面2111之間的樹脂231、與填充至基台220之內周壁223與永久磁鐵211之內周側面2112之間的樹脂231連結。In addition, the resin 231 is not only filled between the outer peripheral wall 224 of the groove 222 of the base 220 and the outer peripheral side 2111 of the permanent magnet 211, and between the inner peripheral wall 223 of the base 220 and the inner peripheral side 2112 of the permanent magnet 211, but also It is filled between the permanent magnets 211 adjacent in the circumferential direction of the base 220. Therefore, the permanent magnet 211 cannot move in the circumferential direction. In addition, the resin 231 filled between the permanent magnets 211 adjacent in the circumferential direction makes the resin 231 filled between the outer peripheral wall 224 of the groove 222 of the base 220 and the outer peripheral surface 2111 of the permanent magnet 211 and the resin 231 filled between the base 220 The resin 231 between the inner peripheral wall 223 and the inner peripheral side surface 2112 of the permanent magnet 211 is connected.

本實施形態中，與第1實施形態不同，永久磁鐵211成為分割而成之構成而非圓環之構成。因此，即便未將永久磁鐵211之外徑設為高精度，亦可使永久磁鐵211之外周側面2111抵接於槽222之外周壁224中之小徑面2241，從而可抑制永久磁鐵211之加工成本。又，於高輸出馬達或高輸出密度馬達中，因轉子大徑化、高速化，永久磁鐵211中受到較大之離心力。第1實施形態之永久磁鐵210為環狀，故對離心力產生拉伸應力。另一方面，本實施形態之永久磁鐵211成為分割而成之構成，故對離心力不產生拉伸應力。因此，較大之離心力直接成為企圖使永久磁鐵211朝外徑方向飛散之力。然而，本實施形態之轉子201係成為分割而成之構成之永久磁鐵211之外周側面2111分別與小徑面2241抵接，故可防止永久磁鐵211各自朝外徑方向飛散。又，由樹脂形成與永久磁鐵之外周側面2111抵接之抵接部之比較例之轉子必須加厚抵接部以承受離心力。然而，本實施形態中，與永久磁鐵211之外周側面2111抵接之小徑面2241因由鐵或壓粉磁心等形成而可較薄，從而可使轉子201之外徑小型化。又，因將小徑面2241設置於槽222之底面225側之外周壁224，故藉由作用於永久磁鐵211之離心力而可減小施加至外周壁224之外徑方向之彎曲力矩，並且外周壁224藉由小徑面2241而厚壁化，從而亦可提昇剛度。又，藉由於磁極數之永久磁鐵211之間設置間隙，可提昇對於永久磁鐵211之洩漏磁通之磁阻，抑制馬達輸出或效率之低下。In this embodiment, unlike the first embodiment, the permanent magnet 211 has a divided structure instead of a circular ring structure. Therefore, even if the outer diameter of the permanent magnet 211 is not set to high accuracy, the outer peripheral side surface 2111 of the permanent magnet 211 can abut the small diameter surface 2241 in the outer peripheral wall 224 of the groove 222, thereby suppressing the processing of the permanent magnet 211 cost. Furthermore, in a high-output motor or a high-output density motor, the permanent magnet 211 receives a large centrifugal force due to the increase in the diameter and speed of the rotor. The permanent magnet 210 of the first embodiment is ring-shaped, so it generates tensile stress on centrifugal force. On the other hand, the permanent magnet 211 of the present embodiment has a divided structure, so that no tensile stress is generated for centrifugal force. Therefore, the large centrifugal force directly becomes a force that attempts to disperse the permanent magnet 211 in the outer diameter direction. However, in the rotor 201 of the present embodiment, the outer peripheral side surface 2111 of the permanent magnet 211 in which the permanent magnet 211 is divided into contact with the small-diameter surface 2241 can prevent the permanent magnets 211 from scattering in the outer diameter direction. In addition, the rotor of the comparative example in which the contact portion abutting on the outer peripheral surface 2111 of the permanent magnet is formed of resin must be thickened to withstand the centrifugal force. However, in this embodiment, the small-diameter surface 2241 contacting the outer peripheral side surface 2111 of the permanent magnet 211 can be made thinner because it is formed of iron or a dust core, so that the outer diameter of the rotor 201 can be miniaturized. In addition, since the small-diameter surface 2241 is provided on the outer peripheral wall 224 on the bottom surface 225 side of the groove 222, the centrifugal force acting on the permanent magnet 211 can reduce the bending moment applied to the outer peripheral wall 224 in the outer diameter direction. The wall 224 is thickened by the small diameter surface 2241, so that the rigidity can also be improved. In addition, by providing a gap between the permanent magnets 211 due to the number of magnetic poles, the magnetic resistance to the leakage magnetic flux of the permanent magnets 211 can be increased, and the motor output or lower efficiency can be suppressed.

再者，永久磁鐵之形狀不限於圖2A、2B所示之永久磁鐵211之形狀。例如圖3所示，亦可使用具備於軸心700方向上基台220之周向之長度朝向定子100縮小成為錐形狀之軸方向縮小部2121的永久磁鐵212。軸方向縮小部2121亦被填充至周向上相鄰之永久磁鐵212之間之樹脂231覆蓋，藉此可防止永久磁鐵212於軸心700方向上朝向定子100側移動。再者，永久磁鐵212可藉由利用射出成形將磁粉與樹脂混合而成之黏結磁鐵成形而容易地製作。又，於藉由燒結而製作永久磁鐵212之情形時，藉由利用模具之拔模斜度而不增加加工費便可形成軸方向縮小部2121。Furthermore, the shape of the permanent magnet is not limited to the shape of the permanent magnet 211 shown in FIGS. 2A and 2B. For example, as shown in FIG. 3, it is also possible to use a permanent magnet 212 provided with an axially reduced portion 2121 in which the length in the circumferential direction of the base 220 in the direction of the axis 700 is reduced toward the stator 100 into a tapered shape. The axially reduced portion 2121 is also covered by the resin 231 filled between the permanent magnets 212 adjacent in the circumferential direction, thereby preventing the permanent magnets 212 from moving toward the stator 100 in the direction of the axial center 700. Furthermore, the permanent magnet 212 can be easily manufactured by molding a bonded magnet obtained by mixing magnetic powder and resin by injection molding. In addition, when the permanent magnet 212 is manufactured by sintering, the axially reduced portion 2121 can be formed by using the draft angle of the mold without increasing the processing cost.

[第3實施形態] 其次，使用圖式對本發明之第3實施形態之轉子進行說明。圖4A係將軸500嵌合於本發明之第3實施形態之轉子202之剖面立體圖，圖4B係本發明之第3實施形態之轉子202之放大剖視圖。再者，圖4A之反負載側之轉子202(下側)為獲知永久磁鐵211及基台240內部之形狀而省略樹脂232。[Third Embodiment] Next, the rotor according to the third embodiment of the present invention will be explained using drawings. 4A is a cross-sectional perspective view of the rotor 202 in the third embodiment of the present invention with the shaft 500 fitted, and FIG. 4B is an enlarged cross-sectional view of the rotor 202 in the third embodiment of the present invention. Furthermore, the rotor 202 (lower side) on the anti-load side in FIG. 4A omits the resin 232 in order to know the shape of the inside of the permanent magnet 211 and the base 240.

本實施形態與第2實施形態不同之處在於基台240之槽242中內周壁243與外周壁244之形狀、及樹脂232之形狀。因此，馬達之剖面因與圖1A大致相同而省略，且對於與第2實施例重複之零件、構成等，原則上省略說明。The difference between this embodiment and the second embodiment is the shape of the inner peripheral wall 243 and the outer peripheral wall 244 in the groove 242 of the base 240 and the shape of the resin 232. Therefore, the cross-section of the motor is omitted because it is substantially the same as that of FIG. 1A, and the description of the parts and structures that are duplicated with the second embodiment is omitted in principle.

如圖4A所示，本實施形態之轉子202具備：大致圓盤狀之基台240；槽242，其沿轉子202之周向設置於基台240之定子100側之端面241；磁極數之永久磁鐵211，其配置於槽242；及樹脂232，其將磁極數之永久磁鐵211塑模固定於槽242內。基台240於定子100側之端面241沿轉子202之周向設置有槽242。As shown in FIG. 4A, the rotor 202 of this embodiment includes: a substantially disc-shaped base 240; slots 242 provided on the end surface 241 of the stator 100 of the base 240 along the circumferential direction of the rotor 202; The magnet 211 is arranged in the groove 242; and the resin 232, which molds the permanent magnet 211 with the number of magnetic poles in the groove 242. The end surface 241 of the base 240 on the side of the stator 100 is provided with a slot 242 along the circumferential direction of the rotor 202.

如圖4B所示，槽242包含內周壁243、外周壁244、及底面245。於內周壁243，在底面245側設置有凹部2431，於外周壁244，在底面245側設置有凹部2441。此時，凹部2431、2441之軸心700方向上之定子100相反側之側面與槽242之底面245成為同一面，故凹部2431、2441之加工可藉由車床而與槽242之底面245連續地加工，無需車刀之位置對準，從而可減少步驟數。又，永久磁鐵211因與第2實施形態相同而省略說明。As shown in FIG. 4B, the groove 242 includes an inner peripheral wall 243, an outer peripheral wall 244, and a bottom surface 245. The inner peripheral wall 243 is provided with a recess 2431 on the bottom surface 245 side, and the outer peripheral wall 244 is provided with a recess 2441 on the bottom surface 245 side. At this time, the side surface of the recessed portion 2431, 2441 on the opposite side of the stator 100 in the direction of the axis 700 and the bottom surface 245 of the slot 242 become the same surface, so the processing of the recessed portions 2431, 2441 can be continuous with the bottom surface 245 of the slot 242 by lathe Machining, there is no need to align the position of the turning tool, thereby reducing the number of steps. In addition, since the permanent magnet 211 is the same as in the second embodiment, the description thereof is omitted.

樹脂232係填充至配置有永久磁鐵211之槽242。即，樹脂232分別填充至內周壁243與永久磁鐵211之內周側面2112之間、外周壁244與永久磁鐵211之外周側面2111之間(凹部2441)、及周向上相鄰之永久磁鐵211之間。再者，外周壁244與永久磁鐵211之外周側面2111之間未於軸心700方向上開口，故無法直接填充樹脂。然而，藉由使樹脂232填充至凹部2441中周向上相鄰之永久磁鐵211之間進行流動，可將樹脂232填充至外周壁244與永久磁鐵211之外周側面2111之間。又，填充至周向上相鄰之永久磁鐵211之間的樹脂232將填充至內周壁243與永久磁鐵211之內周側面2112之間的樹脂232、與填充至外周壁244與永久磁鐵211之外周側面2111之間的樹脂232連結。The resin 232 is filled in the groove 242 where the permanent magnet 211 is arranged. That is, the resin 232 is respectively filled between the inner circumferential wall 243 and the inner circumferential side surface 2112 of the permanent magnet 211, between the outer circumferential wall 244 and the outer circumferential side surface 2111 of the permanent magnet 211 (recess 2441), and between the permanent magnets 211 adjacent in the circumferential direction. between. Furthermore, the outer peripheral wall 244 and the outer peripheral side surface 2111 of the permanent magnet 211 do not open in the direction of the axis 700, so the resin cannot be directly filled. However, the resin 232 can be filled between the outer peripheral wall 244 and the outer peripheral surface 2111 of the permanent magnet 211 by filling the resin 232 between the permanent magnets 211 adjacent in the circumferential direction in the recess 2441 and flowing. In addition, the resin 232 filled between the adjacent permanent magnets 211 in the circumferential direction will be the resin 232 filled between the inner peripheral wall 243 and the inner peripheral side surface 2112 of the permanent magnet 211, and the resin 232 filled between the outer peripheral wall 244 and the outer periphery of the permanent magnet 211 The resin 232 between the side surfaces 2111 is connected.

又，藉由將樹脂232填充至內周壁243與永久磁鐵211之內周側面2112之間而將樹脂232填充至內周壁243之凹部2431，藉由將樹脂232填充至周向上相鄰之永久磁鐵211之間而將樹脂232填充至外周壁244之凹部2441。因此，基台240具有與槽242連通且被填充樹脂232之凹部2431、2441，且於填充至凹部2431、2441之樹脂232即凸部2321、2322之定子100側，以阻礙樹脂232沿軸心700方向移動之方式鄰接著基台240之一部分(凹部2431、2441之定子100側之部分)即擋止部2431、2442。即，基台240具備凹部2431、2441，該等凹部2431、2441設置成於包含轉子202之軸心700之轉子202之剖面，沿著與軸心700平行之軸線A-A、B-B方向(參照圖4B)觀察轉子202時，於基台240之一部分即擋止部2431、2442之定子100之相反側鄰接地出現樹脂232之一部分即凸部2321、2322。又，填充至凹部2431、2441之樹脂232即凸部2321、2322被凹部2431、2441與樹脂232覆蓋，且配備於轉子202之內部。In addition, by filling the resin 232 between the inner peripheral wall 243 and the inner peripheral side surface 2112 of the permanent magnet 211, the resin 232 is filled into the concave portion 2431 of the inner peripheral wall 243, and the resin 232 is filled into the permanent magnets adjacent in the circumferential direction. Resin 232 is filled in the recessed portion 2441 of the outer peripheral wall 244 between 211. Therefore, the base 240 has recesses 2431, 2441 that are connected to the groove 242 and filled with resin 232, and the resin 232 filled in the recesses 2431, 2441, that is, the convex portions 2321, 2322, is on the stator 100 side to prevent the resin 232 from being along the axis. The way of movement in the 700 direction is adjacent to a part of the base 240 (the part of the recessed parts 2431 and 2441 on the stator 100 side), that is, the stop parts 2431 and 2442. That is, the base 240 has recesses 2431, 2441, and the recesses 2431, 2441 are provided in the cross section of the rotor 202 including the shaft center 700 of the rotor 202, along the axis AA, BB directions parallel to the shaft center 700 (see FIG. 4B ) When observing the rotor 202, a part of the resin 232, which is a convex part 2321, 2322, is adjacent to a part of the base 240, which is the opposite side of the stator 100 of the stop part 2431 and 2442. In addition, the resin 232 filled in the concave portions 2431 and 2441, that is, the convex portions 2321, 2322, is covered by the concave portions 2431, 2441 and the resin 232, and is arranged inside the rotor 202.

本實施形態中，凹部2431、2441內之樹脂232即凸部2321、2322位於轉子202之內部，故將凹部2431、2441內之樹脂232即凸部2321、2322與外部大氣之接觸阻隔。因此，可抑制凹部2431、2441內之樹脂232即凸部2321、2322如轉子202表面上露出之樹脂232般容易因氧等環境物質或外部大氣之熱而劣化，故可防止因轉子202之持續使用導致永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)降低。再者，本實施形態中，將凹部2431以環狀形成於內周壁243之全周，將凹部2441以環狀形成於外周壁244之全周，故可進一步增強永久磁鐵211之保持功能。In this embodiment, the resin 232 in the recesses 2431 and 2441, that is, the protrusions 2321, 2322, are located inside the rotor 202, so the resin 232 in the recesses 2431, 2441, that is, the protrusions 2321 and 2322, are blocked from contact with the outside atmosphere. Therefore, the resin 232 in the recesses 2431 and 2441, that is, the protrusions 2321 and 2322, is prevented from being degraded by environmental substances such as oxygen or the heat of the external atmosphere like the resin 232 exposed on the surface of the rotor 202. Therefore, it can prevent the rotor 202 from being sustained The use causes the retention function of the permanent magnet 211 (the restraining function of the permanent magnet 211 in the direction of the axis 700) to decrease. Furthermore, in this embodiment, the concave portion 2431 is formed in a ring shape on the entire circumference of the inner peripheral wall 243, and the concave portion 2441 is formed in a ring shape on the entire circumference of the outer peripheral wall 244, so that the retaining function of the permanent magnet 211 can be further enhanced.

又，永久磁鐵211之內周側面2112形成為與槽242之內周壁243之間隔於軸心700方向上朝向定子100側擴大。因此，藉由使樹脂232與永久磁鐵211介隔永久磁鐵211之內周側面2112相互抵接，而增強樹脂232之永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)。即，與大致鉛直地設置永久磁鐵211之內周側面之情形相比，可將永久磁鐵211牢固地保持於基台240上。In addition, the inner peripheral side surface 2112 of the permanent magnet 211 is formed so that the distance from the inner peripheral wall 243 of the slot 242 is enlarged toward the stator 100 in the direction of the axis 700. Therefore, by making the resin 232 and the permanent magnet 211 abut against each other via the inner peripheral side surface 2112 of the permanent magnet 211, the retaining function of the permanent magnet 211 of the resin 232 is enhanced (the restraint function of the permanent magnet 211 in the direction of the axis 700) . That is, compared with the case where the inner peripheral side surface of the permanent magnet 211 is arranged substantially vertically, the permanent magnet 211 can be firmly held on the base 240.

[第4實施形態] 其次，參照圖式對本發明之第4實施形態之轉子進行說明。圖5A係將軸500嵌合於本發明之第4實施形態之轉子203之剖面立體圖，圖5B係本發明之第4實施形態之轉子203之放大剖視圖。再者，圖5A之反負載側之轉子203(下側)為獲知永久磁鐵211及基台250內部之形狀而省略樹脂233。[Fourth Embodiment] Next, the rotor of the fourth embodiment of the present invention will be described with reference to the drawings. 5A is a cross-sectional perspective view of the rotor 203 in the fourth embodiment of the present invention with the shaft 500 fitted, and FIG. 5B is an enlarged cross-sectional view of the rotor 203 in the fourth embodiment of the present invention. Furthermore, the rotor 203 (lower side) on the anti-load side in FIG. 5A omits the resin 233 in order to know the shape of the inside of the permanent magnet 211 and the base 250.

本實施形態與第2實施形態不同之處在於基台250與樹脂233之形狀。因此，馬達之剖面因與圖1A大致相同而省略，對於與第2實施例重複之零件、構成等，原則上省略說明。This embodiment is different from the second embodiment in the shapes of the base 250 and the resin 233. Therefore, the cross-section of the motor is omitted because it is substantially the same as that of FIG. 1A, and the description of the parts, the structure, etc. that are the same as those in the second embodiment is omitted in principle.

如圖5A所示，本實施形態之轉子203具備：大致圓盤狀之基台250；槽252，其沿轉子203之周向設置於基台250之定子100側之端面251；磁極數之永久磁鐵211，其配置於槽252；及樹脂233，其將磁極數之永久磁鐵211塑模固定於槽252內。基台250於定子100側之端面251沿轉子203之周向設置有槽252。As shown in FIG. 5A, the rotor 203 of this embodiment has: a substantially disc-shaped base 250; a slot 252 provided on the end surface 251 of the stator 100 of the base 250 along the circumferential direction of the rotor 203; the permanent number of magnetic poles The magnet 211, which is arranged in the groove 252; and the resin 233, which molds the permanent magnet 211 with the number of magnetic poles in the groove 252. The end surface 251 of the base 250 on the stator 100 side is provided with a slot 252 along the circumferential direction of the rotor 203.

如圖5B所示，槽252係包含內周壁253、外周壁254、及底面255。又，於基台250之定子100相反側之端面257設置有1個以上的盲孔256。盲孔256經由形成於內周壁253之開口部258而與槽252連通。而且，盲孔256之由底部2561與周面2562包圍而成之部分形成凹部2563。又，於外周壁254之底面255側，設置有永久磁鐵211之外周側面2111所抵接之小徑面2541，且於外周壁254之定子100側，形成有大徑面2542。再者，小徑面2541及大徑面2542與第2實施形態之小徑面2241及大徑面2242相同，故省略說明。As shown in FIG. 5B, the groove 252 includes an inner peripheral wall 253, an outer peripheral wall 254, and a bottom surface 255. In addition, one or more blind holes 256 are provided on the end surface 257 on the opposite side of the stator 100 of the base 250. The blind hole 256 communicates with the groove 252 via an opening 258 formed in the inner peripheral wall 253. In addition, a portion of the blind hole 256 surrounded by the bottom 2561 and the peripheral surface 2562 forms a recess 2563. In addition, on the bottom surface 255 side of the outer peripheral wall 254, a small diameter surface 2541 against which the outer peripheral side surface 2111 of the permanent magnet 211 abuts is provided, and on the stator 100 side of the outer peripheral wall 254, a large diameter surface 2542 is formed. In addition, the small diameter surface 2541 and the large diameter surface 2542 are the same as the small diameter surface 2241 and the large diameter surface 2242 of the second embodiment, so the description is omitted.

樹脂233填充至配置有永久磁鐵211之槽252。即，樹脂233分別填充至內周壁253與永久磁鐵211之內周側面2112之間、外周壁254與永久磁鐵211之外周側面2111之間、周向上相鄰之永久磁鐵211之間。再者，填充至周向上相鄰之永久磁鐵211之間的樹脂233將填充至內周壁253與永久磁鐵211之內周側面2112之間的樹脂233與填充至外周壁264與永久磁鐵211之外周側面2111之間的樹脂233連結。The resin 233 is filled in the groove 252 where the permanent magnet 211 is arranged. That is, the resin 233 is respectively filled between the inner peripheral wall 253 and the inner peripheral side surface 2112 of the permanent magnet 211, between the outer peripheral wall 254 and the outer peripheral side surface 2111 of the permanent magnet 211, and between the permanent magnets 211 adjacent in the circumferential direction. Furthermore, the resin 233 filled between the adjacent permanent magnets 211 in the circumferential direction will fill the resin 233 between the inner peripheral wall 253 and the inner peripheral side surface 2112 of the permanent magnet 211 and the resin 233 filled between the outer peripheral wall 264 and the outer periphery of the permanent magnet 211. The resin 233 between the side faces 2111 is connected.

又，藉由將樹脂233填充至內周壁253與永久磁鐵211之內周側面2112之間，而將樹脂233經由內周壁253之開口部258填充至盲孔256，從而將樹脂233填充至凹部2563。因此，基台250具有與槽252連通且被填充樹脂233之凹部2563，且於填充至凹部2563之樹脂233即凸部2331之定子100側，以阻礙樹脂233沿軸心700方向移動之方式鄰接著基台250之一部分即盲孔256之底部2561。即，基台250具備凹部2563，該凹部2563係設置成於包含轉子203之軸心700之轉子203之剖面，沿著與軸心700平行之軸線A-A方向觀察轉子203時，於基台250之一部分即盲孔256之底部2561，在定子100之相反側鄰接地出現樹脂233之一部分即凸部2331。又，填充至凹部2563之樹脂233即凸部2331被凹部2563與其他樹脂233覆蓋，且配備於轉子203之內部。In addition, by filling the resin 233 between the inner peripheral wall 253 and the inner peripheral side surface 2112 of the permanent magnet 211, the resin 233 is filled into the blind hole 256 through the opening 258 of the inner peripheral wall 253, and the resin 233 is filled into the recess 2563. . Therefore, the base 250 has a concave portion 2563 connected to the groove 252 and filled with resin 233, and is adjacent to the stator 100 side of the convex portion 2331 that is filled with the resin 233 of the concave portion 2563 so as to prevent the resin 233 from moving along the axis 700. Then a part of the base 250 is the bottom 2561 of the blind hole 256. That is, the base 250 is provided with a recessed portion 2563 which is provided in the cross section of the rotor 203 including the shaft center 700 of the rotor 203. When the rotor 203 is viewed in the direction of the axis AA parallel to the shaft center 700, the recessed portion 2563 is provided on the base 250 One part is the bottom 2561 of the blind hole 256, and a part of the resin 233, which is a convex part 2331, appears adjacent to the opposite side of the stator 100. In addition, the resin 233 filled in the concave portion 2563, that is, the convex portion 2331 is covered by the concave portion 2563 and other resin 233, and is provided inside the rotor 203.

本實施形態中，填充至盲孔256之樹脂233即凸部2331位於轉子203之內部，故將凹部2563內之樹脂233即凸部2331與外部大氣之接觸阻隔。因此，可抑制凹部2563內之樹脂233即凸部2331如轉子203表面上露出之樹脂233般容易因氧等環境物質或外部大氣之熱而劣化，故可防止因轉子203之持續使用導致永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)降低。In this embodiment, the resin 233 filled in the blind hole 256, that is, the convex portion 2331 is located inside the rotor 203, so the resin 233 in the concave portion 2563, that is, the convex portion 2331, is blocked from contact with the outside atmosphere. Therefore, it is possible to prevent the resin 233 in the concave portion 2563, that is, the convex portion 2331 from being easily degraded by environmental substances such as oxygen or the heat of the outside atmosphere, like the resin 233 exposed on the surface of the rotor 203, so that permanent magnets caused by continuous use of the rotor 203 can be prevented. The holding function of 211 (the restraining function of the permanent magnet 211 in the direction of the axis 700) is reduced.

又，與第3實施形態同樣地，永久磁鐵211之內周側面2112與槽252之內周壁253之間隔形成為於軸心700方向上朝向定子100側擴大。因此，藉由使樹脂233與永久磁鐵211介隔永久磁鐵211之內周側面2112相互抵接，而增強樹脂233之永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)。即，與大致鉛直地設置永久磁鐵211之內周側面之情形相比，可將永久磁鐵211牢固地保持於基台250上。In addition, as in the third embodiment, the distance between the inner peripheral surface 2112 of the permanent magnet 211 and the inner peripheral wall 253 of the groove 252 is formed to expand toward the stator 100 in the direction of the shaft center 700. Therefore, by making the resin 233 and the permanent magnet 211 abut against each other via the inner peripheral side surface 2112 of the permanent magnet 211, the retaining function of the permanent magnet 211 of the resin 233 is enhanced (the restraining function of the permanent magnet 211 in the direction of the axis 700) . That is, compared with the case where the inner peripheral side surface of the permanent magnet 211 is provided substantially vertically, the permanent magnet 211 can be firmly held on the base 250.

又，根據本實施形態，藉由於基台250之定子100相反側之端面257設置複數個盲孔256之類簡單之加工，便能設置與槽252連通且被填充樹脂233之凹部2563。再者，本實施形態中，於基台250之定子100相反側之端面257設置有1個以上之盲孔256，但只要不損及基台250之強度，較佳為盲孔之數量較多。In addition, according to this embodiment, by simple processing such as providing a plurality of blind holes 256 on the end surface 257 of the base 250 opposite to the stator 100, the recesses 2563 communicating with the grooves 252 and filled with resin 233 can be provided. Furthermore, in this embodiment, more than one blind hole 256 is provided on the end surface 257 on the opposite side of the stator 100 of the base 250. However, as long as the strength of the base 250 is not compromised, the number of blind holes is preferably larger. .

[第5實施形態] 其次，使用圖式對本發明之第5實施形態之轉子進行說明。圖6A係將軸500嵌合於本發明之第5實施形態之轉子204之剖面立體圖，圖6B係本發明之第5實施形態之轉子204之放大剖視圖。再者，圖6A之反負載側之轉子204(下側)為獲知永久磁鐵211及基台260內部之形狀而省略樹脂234。[Fifth Embodiment] Next, the rotor of the fifth embodiment of the present invention will be described using drawings. 6A is a cross-sectional perspective view of the rotor 204 in the fifth embodiment of the invention where the shaft 500 is fitted, and FIG. 6B is an enlarged cross-sectional view of the rotor 204 in the fifth embodiment of the invention. Furthermore, the rotor 204 (lower side) on the anti-load side of FIG. 6A is to know the shape of the permanent magnet 211 and the inside of the base 260 and the resin 234 is omitted.

本實施形態與第2實施形態不同之處在於基台260與樹脂234之形狀。因此，馬達之剖面因與圖1A大致相同而省略，對於與第2實施例重複之零件、構成等，原則上省略說明。This embodiment is different from the second embodiment in the shapes of the base 260 and the resin 234. Therefore, the cross-section of the motor is omitted because it is substantially the same as that of FIG. 1A, and the description of the parts, the structure, etc. that are the same as those in the second embodiment is omitted in principle.

如圖6A所示，本實施形態之轉子204具備：大致圓盤狀之基台260；槽262，其沿轉子204之周向設置於基台260之定子100側之端面261；磁極數之永久磁鐵211，其配置於槽262；及樹脂234，其將相當於磁極數之永久磁鐵211塑模固定於槽262內。基台260於定子100側之端面261沿轉子204之周向設置有槽262。As shown in FIG. 6A, the rotor 204 of this embodiment has: a substantially disc-shaped base 260; a slot 262 provided on the end surface 261 of the stator 100 of the base 260 along the circumferential direction of the rotor 204; and the permanent number of magnetic poles The magnet 211 is arranged in the groove 262; and the resin 234, which molds the permanent magnet 211 corresponding to the number of magnetic poles in the groove 262. The end surface 261 of the base 260 on the stator 100 side is provided with a slot 262 along the circumferential direction of the rotor 204.

如圖6B所示，槽262係包含內周壁263、外周壁264、及底面265。又，內周壁263相對於底面265以銳角豎立，且由內周壁263與底面265所夾之部分形成凹部2631。此時，凹部2631係僅將內周壁263相對於底面265加工成銳角，故內周壁263與底面265可藉由車床而連續加工，從而可使步驟數減少。再者，外周壁264(小徑面2641與大徑面2642)為與第4實施形態相同之構成，故省略說明。As shown in FIG. 6B, the groove 262 includes an inner peripheral wall 263, an outer peripheral wall 264, and a bottom surface 265. In addition, the inner peripheral wall 263 stands at an acute angle with respect to the bottom surface 265, and a recessed portion 2631 is formed between the inner peripheral wall 263 and the bottom surface 265. At this time, the concave portion 2631 only processes the inner peripheral wall 263 at an acute angle with respect to the bottom surface 265, so the inner peripheral wall 263 and the bottom surface 265 can be processed continuously by a lathe, so that the number of steps can be reduced. In addition, the outer peripheral wall 264 (the small-diameter surface 2641 and the large-diameter surface 2642) has the same structure as that of the fourth embodiment, so the description is omitted.

樹脂234填充至配置有永久磁鐵211之槽262。即，將樹脂234分別填充至內周壁263與永久磁鐵211之內周側面2112之間、外周壁264與永久磁鐵211之外周側面2111之間、及周向上相鄰之永久磁鐵211之間。再者，填充至周向上相鄰之永久磁鐵211之間的樹脂234將填充至內周壁263與永久磁鐵211之內周側面2112之間的樹脂234與填充至外周壁264與永久磁鐵211之外周側面2111之間的樹脂234連結。The resin 234 is filled in the groove 262 where the permanent magnet 211 is arranged. That is, the resin 234 is respectively filled between the inner peripheral wall 263 and the inner peripheral side surface 2112 of the permanent magnet 211, between the outer peripheral wall 264 and the outer peripheral side surface 2111 of the permanent magnet 211, and between the permanent magnets 211 adjacent in the circumferential direction. Furthermore, the resin 234 filled between the permanent magnets 211 adjacent in the circumferential direction will be filled between the resin 234 between the inner peripheral wall 263 and the inner peripheral side surface 2112 of the permanent magnet 211 and the resin 234 filled between the outer peripheral wall 264 and the outer periphery of the permanent magnet 211 The resin 234 between the side surfaces 2111 is connected.

又，藉由將樹脂234填充至內周壁263與永久磁鐵211之內周側面2112之間而將樹脂234填充至凹部2631。因此，基台260具有與槽262連通且被填充樹脂234之凹部2631，且於填充至凹部2631之樹脂234即凸部2341之定子100側，鄰接著基台260之一部分即內周壁263。即，基台260具備凹部2631，該凹部2631係設置成於包含轉子204之軸心700之轉子204之剖面，沿著與軸心700平行之軸線A-A方向觀察轉子204時，於基台260之一部分即內周壁263之定子100之相反側鄰接地出現樹脂234之一部分即凸部2341。又，填充至凹部2631之樹脂234即凸部2341被凹部2631(內周壁243與底面245)與樹脂234覆蓋，且配備於轉子204之內部。In addition, the resin 234 is filled in the recess 2631 by filling the resin 234 between the inner peripheral wall 263 and the inner peripheral side surface 2112 of the permanent magnet 211. Therefore, the base 260 has a recessed portion 2631 connected with the groove 262 and filled with resin 234, and the resin 234 filled in the recessed portion 2631, that is, the convex portion 2341, is adjacent to the inner peripheral wall 263, which is a part of the base 260. That is, the base 260 is provided with a recess 2631 which is provided in the cross section of the rotor 204 including the shaft center 700 of the rotor 204. When the rotor 204 is viewed in the direction of the axis AA parallel to the shaft center 700, the recess 2631 A part of the inner peripheral wall 263 opposite to the stator 100 is adjacently provided with a part of the resin 234 that is a convex portion 2341. In addition, the resin 234 filled in the concave portion 2631, that is, the convex portion 2341 is covered by the concave portion 2631 (the inner peripheral wall 243 and the bottom surface 245) and the resin 234, and is arranged inside the rotor 204.

本實施形態中，填充至凹部2631之樹脂234即凸部2341位於轉子204之內部，故而將填充至凹部2631之樹脂234即凸部2341與外部大氣之接觸阻隔。因此，可抑制填充至凹部2631之樹脂234即凸部2341如轉子204之表面上露出之樹脂234般容易因氧等環境物質或外部大氣之熱而劣化，故可防止因轉子204之持續使用導致永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)降低。In this embodiment, the resin 234 filled in the concave portion 2631, that is, the convex portion 2341, is located inside the rotor 204, so the resin 234 filled in the concave portion 2631, that is, the convex portion 2341 is blocked from contact with the outside atmosphere. Therefore, it is possible to prevent the resin 234 filled in the concave portion 2631, that is, the convex portion 2341 from being easily degraded by environmental substances such as oxygen or the heat of the outside atmosphere like the resin 234 exposed on the surface of the rotor 204, so that the continuous use of the rotor 204 can be prevented. The holding function of the permanent magnet 211 (the restraining function of the permanent magnet 211 in the direction of the axis 700) is reduced.

又，永久磁鐵211之內周側面2112與槽262之內周壁263形成為與軸心700之間隔於軸心700方向上朝向定子100側擴大。因此，藉由使樹脂234與永久磁鐵211介隔永久磁鐵211之內周側面2112相互抵接，而增強樹脂234之永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)。即，與大致鉛直地設置永久磁鐵211之內周側面之情形相比，可將永久磁鐵211牢固地保持於基台260上。又，根據本實施形態，藉由使內周壁263朝槽262之底面265側傾斜之類簡單之加工，便能設置本發明之凹部。In addition, the inner peripheral side surface 2112 of the permanent magnet 211 and the inner peripheral wall 263 of the groove 262 are formed so that the distance from the shaft center 700 is enlarged toward the stator 100 side in the direction of the shaft center 700. Therefore, by making the resin 234 and the permanent magnet 211 abut against each other via the inner peripheral side surface 2112 of the permanent magnet 211, the retaining function of the permanent magnet 211 of the resin 234 is enhanced (the restraining function of the permanent magnet 211 in the direction of the axis 700) . That is, compared with the case where the inner peripheral side surface of the permanent magnet 211 is provided substantially vertically, the permanent magnet 211 can be firmly held on the base 260. Furthermore, according to the present embodiment, the recess of the present invention can be provided by simple processing such as tilting the inner peripheral wall 263 toward the bottom surface 265 side of the groove 262.

[第6實施形態] 其次，使用圖式對本發明之第6實施形態之轉子進行說明。圖7A係將軸500嵌合於本發明之第6實施形態之轉子205之剖面立體圖，圖7B係本發明之第6實施形態之轉子205之放大剖視圖。再者，圖7A之反負載側之轉子205(下側)為獲知永久磁鐵211及基台270內部之形狀而省略樹脂235。[Sixth Embodiment] Next, the rotor of the sixth embodiment of the present invention will be described using drawings. FIG. 7A is a cross-sectional perspective view of the rotor 205 of the sixth embodiment of the invention where the shaft 500 is fitted, and FIG. 7B is an enlarged cross-sectional view of the rotor 205 of the sixth embodiment of the invention. Furthermore, the rotor 205 (lower side) on the anti-load side in FIG. 7A omits the resin 235 in order to know the shape of the inside of the permanent magnet 211 and the base 270.

本實施形態與第2實施形態不同之處在於基台270與樹脂235之形狀。因此，馬達之剖面因與圖1A大致相同而省略，對於與第2實施例重複之零件、構成等，原則上省略說明。This embodiment is different from the second embodiment in the shape of the base 270 and the resin 235. Therefore, the cross-section of the motor is omitted because it is substantially the same as that of FIG. 1A, and the description of the parts, the structure, etc. that are the same as those in the second embodiment is omitted in principle.

如圖7A所示，本實施形態之轉子205具備：大致圓盤狀之基台270；槽272，其沿轉子205之周向設置於基台270之定子100側之端面271；磁極數之永久磁鐵211，其配置於槽272；螺釘277，其以使頭部2771離開底面275之狀態螺合於基台270之周向上相鄰之永久磁鐵211之間形成於槽272之底面275之螺孔276；及樹脂235，其將磁極數之永久磁鐵211塑模固定於槽272內。基台270於定子100側之端面271沿轉子205之周向設置有槽272。As shown in FIG. 7A, the rotor 205 of this embodiment includes: a substantially disc-shaped base 270; a slot 272 provided on the end surface 271 of the stator 100 side of the base 270 along the circumferential direction of the rotor 205; the permanent number of magnetic poles The magnet 211 is arranged in the groove 272; the screw 277 is screwed with the head 2771 away from the bottom surface 275 between the adjacent permanent magnets 211 in the circumferential direction of the base 270. The screw hole formed on the bottom surface 275 of the groove 272 276; and resin 235, which fixes the permanent magnet 211 with the number of magnetic poles in the groove 272. The end surface 271 of the base 270 on the side of the stator 100 is provided with a slot 272 along the circumferential direction of the rotor 205.

如圖7B所示，槽272係包含內周壁273、外周壁274、及底面275。於底面275，在基台270之周向上相鄰之永久磁鐵211之間分別設置有螺孔276。於螺孔276，以使頭部2771離開底面275之狀態螺合有螺釘277。因此，螺釘277之主體部2772自底面275突出，由頭部2771與主體部2772形成凹部2773。又，內周壁273形成為平坦之周面。又，外周壁274(小徑面2741與大徑面2742)係與第4實施形態相同之構成，故省略說明。As shown in FIG. 7B, the groove 272 includes an inner peripheral wall 273, an outer peripheral wall 274, and a bottom surface 275. On the bottom surface 275, screw holes 276 are respectively provided between the permanent magnets 211 adjacent to each other in the circumferential direction of the base 270. A screw 277 is screwed into the screw hole 276 so that the head 2771 is away from the bottom surface 275. Therefore, the main body portion 2772 of the screw 277 protrudes from the bottom surface 275, and the head portion 2771 and the main body portion 2772 form a recess 2773. In addition, the inner peripheral wall 273 is formed as a flat peripheral surface. In addition, the outer peripheral wall 274 (the small-diameter surface 2741 and the large-diameter surface 2742) has the same configuration as that of the fourth embodiment, so the description is omitted.

樹脂235係填充至配置有永久磁鐵211之槽272。即，將樹脂235分別填充至內周壁273與永久磁鐵211之內周側面2112之間、外周壁274與永久磁鐵211之外周側面2111之間、及周向上相鄰之永久磁鐵211之間。再者，填充至周向上相鄰之永久磁鐵211之間的樹脂235將填充至內周壁273與永久磁鐵211之內周側面2112(參照圖8A)之間的樹脂235與填充至外周壁274與永久磁鐵211之外周側面2111(參照圖8A)之間的樹脂235連結。The resin 235 is filled in the groove 272 where the permanent magnet 211 is arranged. That is, the resin 235 is respectively filled between the inner peripheral wall 273 and the inner peripheral side surface 2112 of the permanent magnet 211, between the outer peripheral wall 274 and the outer peripheral side surface 2111 of the permanent magnet 211, and between the permanent magnets 211 adjacent in the circumferential direction. Furthermore, the resin 235 filled between the permanent magnets 211 adjacent in the circumferential direction will fill the resin 235 between the inner peripheral wall 273 and the inner peripheral side surface 2112 of the permanent magnet 211 (see FIG. 8A) and the resin 235 filled between the outer peripheral wall 274 and The resin 235 is connected between the outer peripheral side surfaces 2111 (see FIG. 8A) of the permanent magnet 211.

又，藉由將樹脂235填充至周向上鄰接之永久磁鐵211之間，而將樹脂235填充至由頭部2771與主體部2772形成之凹部2773中。因此，基台270具有與槽272連通且被填充樹脂235之凹部2773，且於填充至凹部2773之樹脂235即凸部2351之定子100側，以阻礙樹脂235沿軸心700方向移動之方式鄰接著成為基台270之一部分之螺釘277之頭部2771。即，基台270具備凹部2773，該凹部2773設置成於包含轉子205之軸心700之轉子205之剖面，沿著與軸心700平行之軸線A-A方向(參照圖7B)觀察轉子205時，於成為基台270之一部分之螺釘277之頭部2771中之定子100之相反側，鄰接地出現樹脂235之一部分即凸部2351。又，凸部2351被凹部2773與樹脂235覆蓋，且配備於轉子205之內部。In addition, by filling the resin 235 between the permanent magnets 211 adjacent in the circumferential direction, the resin 235 is filled in the recess 2773 formed by the head 2771 and the main body 2772. Therefore, the base 270 has a concave portion 2773 connected to the groove 272 and filled with resin 235, and is adjacent to the stator 100 side of the convex portion 2351, which is the resin 235 filled in the concave portion 2773, to prevent the resin 235 from moving along the axis 700. Next to the head 2771 of the screw 277 which becomes a part of the base 270. That is, the base 270 is provided with a recess 2773 provided in the cross section of the rotor 205 including the shaft center 700 of the rotor 205. When the rotor 205 is viewed along the axis AA direction parallel to the shaft center 700 (refer to FIG. 7B), On the opposite side of the stator 100 in the head 2771 of the screw 277 which is a part of the base 270, a part of the resin 235, which is a convex part 2351, appears adjacently. In addition, the convex portion 2351 is covered by the concave portion 2773 and the resin 235, and is provided inside the rotor 205.

本實施形態中，填充至主體部2772之樹脂235即凸部2351位於轉子205之內部，故而將填充至凹部2773之樹脂235即凸部2351與外部大氣之接觸阻隔。因此，可抑制填充至凹部2773之樹脂235即凸部2351如轉子205之表面上露出之樹脂235般容易因氧等環境物質或外部大氣之熱而劣化，故而可防止因轉子205之持續使用導致永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)降低。In this embodiment, the resin 235 filled in the main body portion 2772, that is, the convex portion 2351 is located inside the rotor 205, so the resin 235 filled in the concave portion 2773, that is, the convex portion 2351, is blocked from contact with the outside atmosphere. Therefore, it is possible to prevent the resin 235 filled in the concave portion 2773, that is, the convex portion 2351 from being easily degraded by environmental substances such as oxygen or the heat of the outside atmosphere, like the resin 235 exposed on the surface of the rotor 205, thereby preventing continuous use of the rotor 205. The holding function of the permanent magnet 211 (the restraining function of the permanent magnet 211 in the direction of the axis 700) is reduced.

又，永久磁鐵211之內周側面2112(參照圖7A)與槽272之內周壁273形成為與軸心700之間隔於軸心700方向上朝向定子100側擴大。因此，藉由使樹脂235與永久磁鐵211介隔永久磁鐵211之內周側面2112相互抵接，而增強樹脂235之永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)。即，與大致鉛直地設置永久磁鐵211之內周側面之情形相比，可將永久磁鐵211牢固地保持於基台270上。In addition, the inner peripheral side surface 2112 (refer to FIG. 7A) of the permanent magnet 211 and the inner peripheral wall 273 of the slot 272 are formed so that the distance from the shaft center 700 is enlarged toward the stator 100 side in the direction of the shaft center 700. Therefore, by making the resin 235 and the permanent magnet 211 abut against each other via the inner peripheral side surface 2112 of the permanent magnet 211, the retaining function of the permanent magnet 211 of the resin 235 is enhanced (the restraining function of the permanent magnet 211 in the direction of the axis 700) . That is, compared with the case where the inner peripheral side surface of the permanent magnet 211 is arranged substantially vertically, the permanent magnet 211 can be firmly held on the base 270.

又，根據本實施形態，藉由於基台270之底面275設置螺孔且將具有頭部之螺釘螺合之類簡單之構造，便能設置本發明之凹部2773。In addition, according to the present embodiment, the recess 2773 of the present invention can be provided by a simple structure such as a screw hole provided on the bottom surface 275 of the base 270 and screwing a screw with a head.

再者，亦可將基台270之內周壁273與外周壁274設為與第1實施形態相同之形狀。即，亦可於內周壁273形成凹部2231，於外周壁274在底面275側形成小徑面2241，於定子100側形成大徑面2242，形成小徑面2241與大徑面2242之間之凹部2243。藉此，可進一步防止樹脂235自基台270脫離。又，已示出於基台270之底面275在周向上相鄰之永久磁鐵211之間分別設置螺孔276，且使螺釘277螺合於各個螺孔276之實施形態，但螺孔276為1個以上即可。又，於相鄰之永久磁鐵211之間亦可設置複數個螺孔276。Furthermore, the inner peripheral wall 273 and the outer peripheral wall 274 of the base 270 may have the same shape as the first embodiment. That is, a recess 2231 may be formed on the inner peripheral wall 273, a small diameter surface 2241 may be formed on the outer peripheral wall 274 on the bottom surface 275 side, a large diameter surface 2242 may be formed on the stator 100 side, and a recess between the small diameter surface 2241 and the large diameter surface 2242 may be formed. 2243. Thereby, the resin 235 can be further prevented from detaching from the base 270. In addition, the bottom surface 275 of the base 270 has shown an embodiment in which a screw hole 276 is provided between the permanent magnets 211 adjacent in the circumferential direction, and the screw 277 is screwed to each screw hole 276, but the screw hole 276 is 1 More than one is fine. In addition, a plurality of screw holes 276 can also be provided between adjacent permanent magnets 211.

[第7實施形態] 其次，使用圖式對本發明之第7實施形態之轉子進行說明。圖8A係將軸500嵌合於本發明之第7實施形態之轉子206之剖面立體圖，圖8B係本發明之第7實施形態之轉子206之放大剖視圖。再者，圖8A之反負載側之轉子206(下側)為獲知永久磁鐵211及基台280內部之形狀般而省略樹脂236。[The seventh embodiment] Next, the rotor according to the seventh embodiment of the present invention will be explained using drawings. FIG. 8A is a cross-sectional perspective view of the rotor 206 in the seventh embodiment of the present invention where the shaft 500 is fitted, and FIG. 8B is an enlarged cross-sectional view of the rotor 206 in the seventh embodiment of the present invention. In addition, the rotor 206 (lower side) on the opposite load side in FIG. 8A omits the resin 236 so that the shape of the inside of the permanent magnet 211 and the base 280 is known.

本實施形態與第2實施形態不同之處在於基台280與樹脂236之形狀。因此，馬達之剖面因與圖1A大致相同而省略，對於與第2實施例重複之零件、構成等，原則上省略說明。This embodiment is different from the second embodiment in the shapes of the base 280 and the resin 236. Therefore, the cross-section of the motor is omitted because it is substantially the same as that of FIG. 1A, and the description of the parts, the structure, etc. that are the same as those in the second embodiment is omitted in principle.

圖8A所示，本實施形態之轉子206具備：大致圓盤狀之基台280；槽282，其沿轉子206之周向設置於基台280之定子100側之端面281；磁極數之永久磁鐵211，其配置於槽282；貫通孔286，其設置於周向上相鄰之永久磁鐵211之間之槽282之底面285；鍃孔288，其與基台280之定子100相反側之端面287上貫通之貫通孔286連通；及樹脂236，其將磁極數之永久磁鐵211塑模固定於槽282內。基台280於定子100側之端面281沿轉子206之周向設置有槽282。As shown in FIG. 8A, the rotor 206 of this embodiment includes: a substantially disc-shaped base 280; slots 282 provided on the end surface 281 of the stator 100 side of the base 280 along the circumferential direction of the rotor 206; and permanent magnets of the number of magnetic poles 211, which is arranged in the slot 282; the through hole 286, which is provided on the bottom surface 285 of the slot 282 between the permanent magnets 211 adjacent in the circumferential direction; the hole 288, which is on the end surface 287 on the opposite side of the stator 100 of the base 280 The through hole 286 is connected; and the resin 236, which fixes the permanent magnet 211 with the number of magnetic poles in the groove 282. The end surface 281 of the base 280 on the side of the stator 100 is provided with a slot 282 along the circumferential direction of the rotor 206.

如圖8B所示，槽282包含內周壁283、外周壁284及底面285。於底面285，在基台280之周向上相鄰之永久磁鐵211之間設置有貫通孔286。於貫通孔286之基台280中之定子100相反側之端面287設置鍃孔288，且形成有凹部2881。又，內周壁283與外周壁284(小徑面2841與大徑面2842)為與第6實施形態相同之構成，故省略說明。As shown in FIG. 8B, the groove 282 includes an inner peripheral wall 283, an outer peripheral wall 284 and a bottom surface 285. On the bottom surface 285, a through hole 286 is provided between adjacent permanent magnets 211 in the circumferential direction of the base 280. A hole 288 is provided on the end surface 287 on the opposite side of the stator 100 in the base 280 of the through hole 286, and a recess 2881 is formed. In addition, the inner peripheral wall 283 and the outer peripheral wall 284 (the small-diameter surface 2841 and the large-diameter surface 2842) have the same configuration as that of the sixth embodiment, so the description is omitted.

樹脂236填充至配置有永久磁鐵211之槽282。即，樹脂236分別填充至內周壁283與永久磁鐵211之內周側面2112之間、外周壁284與永久磁鐵211之外周側面2111之間、及周向上相鄰之永久磁鐵211之間。再者，填充至周向上相鄰之永久磁鐵211之間之樹脂236將填充至內周壁283與永久磁鐵211之內周側面2112之間的樹脂236與填充至外周壁284與永久磁鐵211之外周側面2111之間的樹脂236連結。The resin 236 is filled in the groove 282 where the permanent magnet 211 is arranged. That is, the resin 236 is respectively filled between the inner peripheral wall 283 and the inner peripheral side surface 2112 of the permanent magnet 211, between the outer peripheral wall 284 and the outer peripheral side surface 2111 of the permanent magnet 211, and between the permanent magnets 211 adjacent in the circumferential direction. Furthermore, the resin 236 filled between the adjacent permanent magnets 211 in the circumferential direction will fill the resin 236 between the inner peripheral wall 283 and the inner peripheral side surface 2112 of the permanent magnet 211 and the resin 236 filled between the outer peripheral wall 284 and the outer periphery of the permanent magnet 211 The resin 236 between the side faces 2111 is connected.

又，藉由將樹脂236填充至周向上相鄰之永久磁鐵211之間之各者，而將樹脂236填充至貫通孔286與鍃孔288。因此，基台280具有經由貫通孔286與槽282而連通且被填充樹脂236之凹部2881，且於填充至凹部2881之樹脂236即凸部2361之定子100側，以阻礙樹脂236沿軸心700方向移動之方式鄰接著基台280之一部分即鍃孔288之底部2882。即，基台280具備凹部2881，該凹部2881設置成於包含轉子206之軸心700之轉子206之剖面，沿著與軸心700平行之軸線A-A方向(參照圖8B)觀察轉子206時，於基台280之一部分即鍃孔288之底部2882之相反側鄰接地出現樹脂236之一部分即凸部2361。又，填充至凹部2881之樹脂236即凸部2361被鍃孔288之側面2883、底部2882、及樹脂236覆蓋，且配備於轉子206之內部。In addition, the resin 236 is filled in each of the permanent magnets 211 adjacent to each other in the circumferential direction, and the resin 236 is filled in the through hole 286 and the hole 288. Therefore, the base 280 has a concave portion 2881 which is communicated with the groove 282 through the through hole 286 and is filled with resin 236. The resin 236 filled into the concave portion 2881, that is, the convex portion 2361, is on the stator 100 side to prevent the resin 236 from being along the axis 700. The way of direction movement is adjacent to a part of the base 280, namely the bottom 2882 of the hole 288. That is, the base 280 is provided with a recess 2881 which is provided in the cross section of the rotor 206 including the shaft center 700 of the rotor 206. When the rotor 206 is viewed along the axis AA direction parallel to the shaft center 700 (refer to FIG. 8B), A part of the base 280, which is the opposite side of the bottom 2882 of the hole 288, is adjacent to a part of the resin 236, which is a convex part 2361. In addition, the resin 236 filled in the concave portion 2881, that is, the convex portion 2361 is covered by the side surface 2883, the bottom portion 2882, and the resin 236 of the hole 288, and is arranged inside the rotor 206.

本實施形態中，填充至鍃孔288之樹脂236即凸部2361位於轉子206之內部，故而，將凹部2861內之樹脂236即凸部2361與外部大氣之接觸阻隔。因此，可抑制凹部2861內之樹脂236即凸部2361如轉子206之表面上露出之樹脂236般容易因氧等環境物質或外部大氣之熱而劣化，故可防止因轉子206之持續使用導致永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)降低。In this embodiment, the resin 236 filled in the hole 288, that is, the convex portion 2361, is located inside the rotor 206. Therefore, the resin 236 in the concave portion 2861, that is, the convex portion 2361, is blocked from contact with the outside atmosphere. Therefore, the resin 236 in the concave portion 2861, that is, the convex portion 2361, is easily degraded by environmental substances such as oxygen or the heat of the outside atmosphere like the resin 236 exposed on the surface of the rotor 206. Therefore, permanent use of the rotor 206 can be prevented. The holding function of the magnet 211 (the restraining function of the permanent magnet 211 in the direction of the axis 700) is reduced.

又，與第6實施形態同樣地，永久磁鐵211之內周側面2112(參照圖8A)與槽282之內周壁283之間隔形成為於軸心700方向上朝向定子100側擴大。因此，藉由使樹脂236與永久磁鐵211介隔永久磁鐵211之內周側面2112相互抵接，而增強樹脂236之永久磁鐵211之保持功能(軸心700方向上之永久磁鐵211之拘束功能)。即，與大致鉛直地設置永久磁鐵211之內周側面之情形相比，可將永久磁鐵211牢固地保持於基台280上。又，根據本實施形態，藉由於基台280設置貫通孔286與鍃孔288之類簡單之加工，便能設置本發明之凹部。In addition, as in the sixth embodiment, the distance between the inner peripheral surface 2112 (see FIG. 8A) of the permanent magnet 211 and the inner peripheral wall 283 of the slot 282 is formed to expand toward the stator 100 in the axis 700 direction. Therefore, by making the resin 236 and the permanent magnet 211 abut against each other via the inner peripheral side surface 2112 of the permanent magnet 211, the holding function of the permanent magnet 211 of the resin 236 (the restraining function of the permanent magnet 211 in the direction of the axis 700) is enhanced. . That is, compared with the case where the inner peripheral side surface of the permanent magnet 211 is arranged substantially vertically, the permanent magnet 211 can be firmly held on the base 280. Furthermore, according to the present embodiment, the recess of the present invention can be provided by simple processing such as the through hole 286 and the hole 288 provided on the base 280.

再者，本實施形態中，示出了使用鍃孔288(台階孔)之例，但具有與槽282連通且被填充樹脂236之凹部，且於填充至凹部之樹脂236之定子100側鄰接著基台280之一部分即可，亦可為錐孔或內螺孔、朝軸心700方向傾斜之孔等。Furthermore, in this embodiment, an example of using the hole 288 (step hole) is shown, but it has a recess connected to the groove 282 and filled with resin 236, and is adjacent to the stator 100 side of the resin 236 filled in the recess A part of the base 280 may be sufficient, and it may also be a taper hole, an internal screw hole, a hole inclined toward the axis 700, and the like.

又，亦可將基台280之內周壁283與外周壁284設為與第1實施形態相同之形狀。即，亦可於內周壁283形成凹部2231，於外周壁284在底面285側形成小徑面2241，於定子100側形成大徑面2242，且形成小徑面2241與大徑面2242之間之凹部2243。藉此，可進一步防止樹脂236自基台280脫離。In addition, the inner peripheral wall 283 and the outer peripheral wall 284 of the base 280 may have the same shape as the first embodiment. That is, the recess 2231 may be formed on the inner peripheral wall 283, the small diameter surface 2241 may be formed on the bottom surface 285 side of the outer peripheral wall 284, the large diameter surface 2242 may be formed on the stator 100 side, and the gap between the small diameter surface 2241 and the large diameter surface 2242 may be formed. Recess 2243. Thereby, the resin 236 can be further prevented from detaching from the base 280.

又，貫通孔286與鍃孔288於基台280之底面285上在周向上相鄰之永久磁鐵211之間之任一者至少設置1個即可。In addition, at least one of the through hole 286 and the hole 288 may be provided on the bottom surface 285 of the base 280 between the permanent magnets 211 adjacent in the circumferential direction.

[第8實施形態] 其次，使用圖式對本發明之第8實施形態之轉子進行說明。圖9A係將軸500嵌合於本發明之第8實施形態之轉子207之剖面立體圖，圖9B係本發明之第8實施形態之轉子207之放大剖視圖。再者，圖9A之反負載側之轉子207(下側)為獲知永久磁鐵211及基台290內部之形狀而省略樹脂237。[Eighth Embodiment] Next, the rotor of the eighth embodiment of the present invention will be described using drawings. FIG. 9A is a cross-sectional perspective view of the rotor 207 of the eighth embodiment of the present invention fitted with the shaft 500, and FIG. 9B is an enlarged cross-sectional view of the rotor 207 of the eighth embodiment of the present invention. In addition, the rotor 207 (lower side) on the opposite load side of FIG. 9A is to know the shape of the permanent magnet 211 and the base 290 and the resin 237 is omitted.

本實施形態與第2實施形態不同之處在於基台290之形狀、材質、及具有背軛297。因此，馬達之剖面因與圖1A大致相同而省略，且對於與第2實施例重複之零件、構成等，原則上省略說明。又，樹脂237亦覆蓋背軛297之方面與第2實施形態不同，但因形狀大致相同而原則上省略說明。This embodiment differs from the second embodiment in the shape and material of the base 290, and the back yoke 297 is provided. Therefore, the cross-section of the motor is omitted because it is substantially the same as that of FIG. 1A, and the description of the parts and structures that are duplicated with the second embodiment is omitted in principle. In addition, the resin 237 also covers the back yoke 297 is different from the second embodiment, but since the shape is substantially the same, the description is omitted in principle.

如圖9A所示，本實施形態之轉子207具備：大致圓盤狀之基台290；槽292，其沿轉子207之周向設置於基台290之定子100側之端面291；磁極數之永久磁鐵211，其配置於槽292；小槽296，其沿轉子207之周向設置於槽292之底面295；及背軛297，其配置於小槽296。基台290係藉由非磁體之強度構件形成，且於定子100側之端面291沿轉子207之周向設置有槽292。As shown in FIG. 9A, the rotor 207 of this embodiment includes: a substantially disc-shaped base 290; a slot 292 provided on the end surface 291 of the stator 100 of the base 290 along the circumferential direction of the rotor 207; and the permanent number of magnetic poles The magnet 211 is arranged in the groove 292; the small groove 296 is arranged on the bottom surface 295 of the groove 292 along the circumferential direction of the rotor 207; and the back yoke 297 is arranged in the small groove 296. The base 290 is formed by a non-magnetic strength member, and the end surface 291 on the stator 100 side is provided with a slot 292 along the circumferential direction of the rotor 207.

如圖9B所示，槽292包含內周壁293、外周壁294、及底面295。於底面295，分別設置有沿周向設置之小槽296。又，背軛297係包含軟磁性材料，且配置於小槽296。再者，槽292之內周壁293與外周壁294為與第2實施形態相同之構成，故省略說明。As shown in FIG. 9B, the groove 292 includes an inner peripheral wall 293, an outer peripheral wall 294, and a bottom surface 295. On the bottom surface 295, small grooves 296 arranged along the circumferential direction are respectively provided. In addition, the back yoke 297 includes a soft magnetic material and is arranged in the small groove 296. In addition, the inner peripheral wall 293 and the outer peripheral wall 294 of the groove 292 have the same structure as in the second embodiment, so the description is omitted.

本實施形態中，由非磁體之強度構件形成基台290，於基台290之槽292之底面295沿轉子207之周向設置有較槽292之寬度更窄且深度更淺之小槽296。而且，將包含積層鋼板或壓粉磁心等低損耗之軟磁性材之背軛297配置於小槽296之後，將永久磁鐵211配置於槽292，利用樹脂237一體地進行模塑。藉由如此構成，可使基台290之渦電流損耗降低。而且，不僅可使馬達1000高效化，且可使轉子207之溫度上升降低。因此，可使馬達1000運轉時樹脂237之溫度降低，從而可延長轉子之壽命。又，藉由將永久磁鐵211塑模固定於基台290之槽292，可將背軛297固定於基台290，故無需另行設置保持背軛297之零件，從而可抑制成本。In this embodiment, the base 290 is formed by a non-magnetic strength member, and the bottom surface 295 of the groove 292 of the base 290 is provided with a small groove 296 narrower in width and shallower than the groove 292 along the circumferential direction of the rotor 207. Furthermore, after arranging the back yoke 297 containing a low-loss soft magnetic material such as a laminated steel sheet or a dust core in the small groove 296, the permanent magnet 211 is arranged in the groove 292, and the resin 237 is integrally molded. With this configuration, the eddy current loss of the base 290 can be reduced. Moreover, not only can the efficiency of the motor 1000 be increased, but the temperature rise of the rotor 207 can be reduced. Therefore, the temperature of the resin 237 can be reduced when the motor 1000 is running, and the life of the rotor can be prolonged. In addition, by fixing the permanent magnet 211 to the groove 292 of the base 290, the back yoke 297 can be fixed to the base 290, so there is no need to separately provide parts for holding the back yoke 297, thereby reducing cost.

再者，本發明包含各種變化例而並非限定於上述實施形態。例如，上述實施形態係為了容易理解地說明本發明而詳細進行了說明，並非必須限定於具備所說明之全部構成。又，可將某一實施形態之構成之一部分替換為其他實施形態之構成，又，亦可於某一實施形態之構成中追加其他實施形態之構成。又，可對各實施形態之構成之一部分進行其他構成之追加、刪除、替換。In addition, the present invention includes various modifications and is not limited to the above-mentioned embodiment. For example, the above-mentioned embodiment was explained in detail in order to explain the present invention easily, and it is not necessarily limited to having all the explained structures. Furthermore, a part of the configuration of a certain embodiment may be replaced with a configuration of another embodiment, and it is also possible to add a configuration of another embodiment to the configuration of a certain embodiment. In addition, it is possible to add, delete, and replace other components of a part of the components of each embodiment.

再者，本發明之實施形態亦可為以下態樣。即，於上述實施形態中，示出了馬達1000中使用以2個轉子夾著定子100之方式面對向之雙轉子型軸向間隙旋轉電機之例，但亦可使用具備1個轉子之所謂單轉子型軸向間隙旋轉電機。Furthermore, the embodiments of the present invention may also be the following aspects. That is, in the above-mentioned embodiment, an example is shown in which a dual-rotor type axial gap rotating machine with two rotors sandwiching the stator 100 is used in the motor 1000, but a so-called so-called one with one rotor may also be used. Single rotor type axial gap rotating motor.

又，上述實施形態中，使基台之槽之深度、永久磁鐵與樹脂之厚度大致相同，以使與定子100對向之轉子之端面成為平面，但不限於此。例如，亦可如圖10所示之轉子208般，設為使永久磁鐵213之厚度薄於基台220之槽222之深度，且樹脂238覆蓋永久磁鐵213之構成。又，亦可如圖11所示之轉子209般，設為如下構成，即，使永久磁鐵214之厚度厚於基台220之槽222之深度，且形成與定子100對向之轉子209之端面2091之樹脂239、基台220、及永久磁鐵214之表面中永久磁鐵214之表面2141最接近定子100。藉由如此構成，可減少自定子100與永久磁鐵214釋出之磁通之洩漏，從而可提昇馬達輸出或效率。再者，圖10、11係使用基台220表示，當然亦可使用其他基台。Furthermore, in the above embodiment, the depth of the groove of the base and the thickness of the permanent magnet and the resin are approximately the same so that the end face of the rotor facing the stator 100 becomes a plane, but it is not limited to this. For example, like the rotor 208 shown in FIG. 10, the thickness of the permanent magnet 213 may be thinner than the depth of the groove 222 of the base 220, and the resin 238 may cover the permanent magnet 213. Also, like the rotor 209 shown in FIG. 11, it can be configured as follows: the thickness of the permanent magnet 214 is thicker than the depth of the groove 222 of the base 220, and the end face of the rotor 209 facing the stator 100 is formed Among the surfaces of the resin 239 of 2091, the base 220, and the permanent magnet 214, the surface 2141 of the permanent magnet 214 is closest to the stator 100. With such a configuration, the leakage of the magnetic flux released from the stator 100 and the permanent magnet 214 can be reduced, and the motor output or efficiency can be improved. Furthermore, FIGS. 10 and 11 are represented by a base 220, of course, other bases can also be used.

100:定子(固定子) 110:鐵芯 120:線圈 130:樹脂 140:鐵芯元件 200:轉子(轉動子) 201:轉子(轉動子) 202:轉子(轉動子) 203:轉子(轉動子) 204:轉子(轉動子) 205:轉子(轉動子) 206:轉子(轉動子) 207:轉子(轉動子) 208:轉子(轉動子) 209:轉子(轉動子) 210:永久磁鐵(磁鐵) 211:永久磁鐵(磁鐵) 212:永久磁鐵(磁鐵) 213:永久磁鐵(磁鐵) 214:永久磁鐵(磁鐵) 220:基台 221:端面 222:槽 223:內周壁 224:外周壁 225:底面 230:樹脂 231:樹脂 232:樹脂 233:樹脂 234:樹脂 235:樹脂 236:樹脂 237:樹脂 238:樹脂 240:基台 241:端面 242:槽 243:內周壁 244:外周壁 245:底面 250:基台 251:端面 252:槽 253:內周壁 254:外周壁 255:底面 256:盲孔 257:端面 258:開口部 260:基台 261:端面 262:槽 263:內周壁 264:外周壁 265:底面 270:基台 271:端面 272:槽 273:內周壁 274:外周壁 275:底面 276:螺孔 277:螺釘 280:基台 281:端面 282:槽 283:內周壁 284:外周壁 285:底面 286:貫通孔 287:端面 288:鍃孔 290:基台 291:端面 292:槽 293:內周壁 294:外周壁 295:底面 296:小槽 297:背軛 300:殼體 400:支架 500:軸 600:軸承 700:旋轉軸心 1000:軸向間隙型馬達(馬達) 2091:端面 2101:外周側面 2102:內周側面 2111:外周側面 2112:內周側面 2121:縮小部 2141:表面 2231:凹部 2232:擋止部 2241:小徑面 2242:大徑面 2243:凹部 2244:擋止部 2301:凸部 2302:凸部 2311:凸部 2312:凸部 2331:凸部 2341:凸部 2351:凸部 2361:凸部 2431:凹部 2441:凹部 2541:小徑面 2542:大徑面 2561:底部 2562:周面 2563:凹部 2631:凹部 2641:小徑面 2642:大徑面 2771:頭部 2772:主體部 2773:凹部 2841:小徑面 2842:大徑面 2861:凹部 2881:凹部 2882:底部 2883:側面 100: Stator (fixer) 110: iron core 120: coil 130: resin 140: iron core element 200: Rotor (rotor) 201: Rotor (rotor) 202: Rotor (rotor) 203: Rotor (rotor) 204: Rotor (rotor) 205: Rotor (rotor) 206: Rotor (rotor) 207: Rotor (rotor) 208: Rotor (rotor) 209: Rotor (rotor) 210: permanent magnet (magnet) 211: permanent magnet (magnet) 212: permanent magnet (magnet) 213: permanent magnet (magnet) 214: permanent magnet (magnet) 220: Abutment 221: end face 222: Slot 223: Inner Wall 224: Peripheral Wall 225: Bottom 230: resin 231: Resin 232: Resin 233: Resin 234: Resin 235: Resin 236: Resin 237: Resin 238: Resin 240: Abutment 241: end face 242: Slot 243: Inner Wall 244: outer wall 245: Bottom 250: Abutment 251: end face 252: Slot 253: Inner Wall 254: Peripheral Wall 255: Bottom 256: Blind Hole 257: end face 258: opening 260: Abutment 261: end face 262: slot 263: Inner Wall 264: Peripheral Wall 265: Bottom 270: Abutment 271: end face 272: Groove 273: Inner Wall 274: Peripheral Wall 275: Bottom 276: screw hole 277: Screw 280: Abutment 281: end face 282: slot 283: Inner Wall 284: Peripheral Wall 285: Bottom 286: Through hole 287: End Face 288: The Hole 290: Abutment 291: end face 292: Groove 293: Inner Wall 294: Peripheral Wall 295: Bottom 296: small slot 297: Back Yoke 300: shell 400: bracket 500: axis 600: bearing 700: Rotation axis 1000: Axial gap type motor (motor) 2091: end face 2101: peripheral side 2102: inner peripheral side 2111: peripheral side 2112: inner peripheral side 2121: Reduction Department 2141: Surface 2231: recess 2232: Stop 2241: Trail Noodle 2242: large diameter surface 2243: recess 2244: Stop 2301: convex 2302: convex 2311: convex 2312: convex 2331: convex 2341: Convex 2351: Convex 2361: Convex 2431: recess 2441: recess 2541: Trail Noodle 2542: large diameter noodles 2561: bottom 2562: circumference 2563: recess 2631: recess 2641: Trail Noodle 2642: large diameter noodles 2771: head 2772: main body 2773: recess 2841: trail surface 2842: large diameter noodles 2861: recess 2881: recess 2882: bottom 2883: side

圖1A係使用有本發明之第1實施形態之轉子之軸向間隙型馬達之剖面立體圖。 圖1B係於本發明之第1實施形態之轉子中嵌合有軸之剖面立體圖。 圖1C係本發明之第1實施形態之轉子之放大剖視圖。 圖2A係於本發明之第2實施形態之轉子中嵌合有軸之剖面立體圖。 圖2B係本發明之第2實施形態之轉子之放大剖視圖。 圖3係表示本發明之第2實施形態之轉子中使用之複數個永久磁鐵之另一形狀的立體圖。 圖4A係於本發明之第3實施形態之轉子中嵌合有軸之剖面立體圖。 圖4B係本發明之第3實施形態之轉子之放大剖視圖。 圖5A係於本發明之第4實施形態之轉子中嵌合有軸之剖面立體圖。 圖5B係本發明之第4實施形態之轉子之放大剖視圖。 圖6A係於本發明之第5實施形態之轉子中嵌合有軸之剖面立體圖。 圖6B係本發明之第5實施形態之轉子之放大剖視圖。 圖7A係於本發明之第6實施形態之轉子中嵌合有軸之剖面立體圖。 圖7B係本發明之第6實施形態之轉子之放大剖視圖。 圖8A係於本發明之第7實施形態之轉子中嵌合有軸之剖面立體圖。 圖8B係本發明之第7實施形態之轉子之放大剖視圖。 圖9A係於本發明之第8實施形態之轉子中嵌合有軸之剖面立體圖。 圖9B係本發明之第8實施形態之轉子之放大剖視圖。 圖10係本發明之另一實施形態之轉子之放大剖視圖。 圖11係本發明之另一實施形態之轉子之放大剖視圖。Fig. 1A is a cross-sectional perspective view of an axial gap type motor using the rotor of the first embodiment of the present invention. Fig. 1B is a cross-sectional perspective view with a shaft fitted in the rotor of the first embodiment of the present invention. Fig. 1C is an enlarged cross-sectional view of the rotor of the first embodiment of the present invention. Fig. 2A is a cross-sectional perspective view of a rotor fitted with a shaft in the second embodiment of the present invention. Fig. 2B is an enlarged cross-sectional view of the rotor of the second embodiment of the present invention. Fig. 3 is a perspective view showing another shape of a plurality of permanent magnets used in the rotor of the second embodiment of the present invention. Fig. 4A is a cross-sectional perspective view of a rotor fitted with a shaft in the third embodiment of the present invention. Fig. 4B is an enlarged cross-sectional view of the rotor of the third embodiment of the present invention. Fig. 5A is a cross-sectional perspective view of a rotor fitted with a shaft in the fourth embodiment of the present invention. Fig. 5B is an enlarged cross-sectional view of the rotor of the fourth embodiment of the present invention. Fig. 6A is a cross-sectional perspective view of a rotor fitted with a shaft in the fifth embodiment of the present invention. Fig. 6B is an enlarged cross-sectional view of the rotor of the fifth embodiment of the present invention. Fig. 7A is a cross-sectional perspective view of a rotor fitted with a shaft in the sixth embodiment of the present invention. Fig. 7B is an enlarged cross-sectional view of the rotor of the sixth embodiment of the present invention. Fig. 8A is a cross-sectional perspective view of a rotor fitted with a shaft in the seventh embodiment of the present invention. Fig. 8B is an enlarged cross-sectional view of the rotor of the seventh embodiment of the present invention. Fig. 9A is a cross-sectional perspective view with a shaft fitted in the rotor of the eighth embodiment of the present invention. Fig. 9B is an enlarged cross-sectional view of the rotor of the eighth embodiment of the present invention. Fig. 10 is an enlarged cross-sectional view of a rotor according to another embodiment of the present invention. Fig. 11 is an enlarged cross-sectional view of a rotor according to another embodiment of the present invention.

100:定子(固定子) 100: Stator (fixer)

110:鐵芯 110: iron core

120:線圈 120: coil

130:樹脂 130: resin

140:鐵芯元件 140: iron core element

200:轉子(轉動子) 200: Rotor (rotor)

210:永久磁鐵(磁鐵) 210: permanent magnet (magnet)

220:基台 220: Abutment

221:端面 221: end face

222:槽 222: Slot

230:樹脂 230: resin

300:殼體 300: shell

400:支架 400: bracket

500:軸 500: axis

600:軸承 600: bearing

700:旋轉軸心 700: Rotation axis

1000:軸向間隙型馬達(馬達) 1000: Axial gap type motor (motor)

2232:擋止部 2232: Stop

2243:凹部 2243: recess

Claims (14)

一種軸向間隙型旋轉電機，其係具備轉動子、及隔著沿上述轉動子之中心軸方向設置之間隙而與上述轉動子對向地配置之固定子者，且其特徵在於： 上述轉動子具備：基台、沿上述轉動子之周向設置於上述基台中之固定子側之端面之槽、配置於上述槽之磁鐵、及將上述磁鐵塑模固定於上述槽內之樹脂， 上述基台具有與上述槽連通且被填充上述樹脂之凹部，於填充至上述凹部之樹脂之固定子側，鄰接著上述基台之一部分。An axial gap type rotating electric machine is provided with a rotor and a stator arranged opposite to the rotor via a gap provided along the central axis of the rotor, and is characterized in that: The rotor includes a base, a groove provided on the end surface of the base on the fixed side of the base along the circumferential direction of the rotor, a magnet arranged in the groove, and a resin for fixing the magnet mold in the groove, The base has a recess that communicates with the groove and is filled with the resin, and is adjacent to a part of the base on the side of the fixing member of the resin filled in the recess. 如請求項1之軸向間隙型旋轉電機，其中 上述凹部係形成於上述槽之內周壁。Such as the axial gap type rotating motor of claim 1, where The recess is formed on the inner peripheral wall of the groove. 如請求項1之軸向間隙型旋轉電機，其中 上述凹部係環狀地形成於上述槽之內周壁之全周。Such as the axial gap type rotating motor of claim 1, where The recess is formed annularly on the entire circumference of the inner peripheral wall of the groove. 如請求項1之軸向間隙型旋轉電機，其中 上述凹部係被上述槽之底面、與相對於該底面以銳角豎立之內周壁所夾之部分。Such as the axial gap type rotating motor of claim 1, where The recess is a portion sandwiched by the bottom surface of the groove and the inner peripheral wall standing at an acute angle with respect to the bottom surface. 如請求項1之軸向間隙型旋轉電機，其中 上述凹部係藉由設置於上述基台中之固定子相反側之端面之盲孔而形成， 上述盲孔經由形成於上述槽之側壁之開口部而與上述槽連通。Such as the axial gap type rotating motor of claim 1, where The recess is formed by a blind hole provided on the end surface on the opposite side of the holder in the base, The blind hole communicates with the groove through an opening formed in the side wall of the groove. 如請求項1之軸向間隙型旋轉電機，其中 上述凹部係藉由以使頭部離開上述底面之狀態螺合於上述基台之形成於上述槽之底面之螺孔的螺釘而形成。Such as the axial gap type rotating motor of claim 1, where The recess is formed by a screw that is screwed into a screw hole formed on the bottom surface of the groove of the base in a state that the head is separated from the bottom surface. 如請求項1之軸向間隙型旋轉電機，其中 上述凹部係藉由設置於上述基台之固定子相反側之端面之鍃孔而形成，且 上述鍃孔與設置於上述槽之底面之貫通孔連通。Such as the axial gap type rotating motor of claim 1, where The recess is formed by a hole provided on the end surface on the opposite side of the holder of the base, and The hole is communicated with a through hole provided on the bottom surface of the groove. 如請求項1之軸向間隙型旋轉電機，其中 上述槽之底側之外側內周壁與上述磁鐵之外徑側面抵接。Such as the axial gap type rotating motor of claim 1, where The bottom outer outer inner peripheral wall of the groove abuts against the outer outer side surface of the magnet. 如請求項1之軸向間隙型旋轉電機，其中 上述磁鐵為環狀。Such as the axial gap type rotating motor of claim 1, where The above-mentioned magnet is ring-shaped. 如請求項1之軸向間隙型旋轉電機，其中 上述磁鐵沿上述基台之周向排列複數個。Such as the axial gap type rotating motor of claim 1, where The magnets are arranged in plural along the circumferential direction of the base. 如請求項10之軸向間隙型旋轉電機，其中 於上述磁鐵，分別設置有上述基台之周向上之長度於上述基台之軸方向上朝向上述固定子側縮小之軸方向縮小部。Such as the axial gap type rotating machine of claim 10, where Each of the magnets is provided with an axial reduction portion in which the length of the base in the circumferential direction is reduced in the axial direction of the base toward the stator side. 如請求項1之軸向間隙型旋轉電機，其中 上述基台係包含軟磁性材料，且利用磁通將上述磁鐵之間耦合。Such as the axial gap type rotating motor of claim 1, where The base system includes a soft magnetic material, and magnetic flux is used to couple the magnets. 如請求項1之軸向間隙型旋轉電機，其中 上述基台係由非磁體之強度構件形成，且 於上述基台與上述磁鐵之間具備包含軟磁性材料之軛鐵。Such as the axial gap type rotating motor of claim 1, where The aforesaid base is formed by a non-magnetic strength member, and A yoke containing a soft magnetic material is provided between the base and the magnet. 如請求項1之軸向間隙型旋轉電機，其中 形成與上述固定子對向之上述轉動子之面之上述樹脂、上述基台及上述磁鐵之表面中，上述磁鐵之表面最接近上述固定子。Such as the axial gap type rotating motor of claim 1, where Among the surfaces of the resin, the base and the magnet forming the surface of the rotor facing the stator, the surface of the magnet is closest to the stator.
TW109104925A 2019-06-20 2020-02-17 Axial gap type rotating motor TWI703795B (en)

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TW202101861A true TW202101861A (en) 2021-01-01

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JP2002218685A (en) * 2001-01-16 2002-08-02 Isuzu Motors Ltd Permanent magnetic assembly and method for manufacturing the same
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US8680736B2 (en) * 2008-11-10 2014-03-25 Hitachi Industrial Equipment Systems Co., Ltd. Armature core, motor using same, and axial gap electrical rotating machine using same
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