WO2022038999A1 - Stator and electric motor provided with same - Google Patents

Stator and electric motor provided with same Download PDF

Info

Publication number
WO2022038999A1
WO2022038999A1 PCT/JP2021/028271 JP2021028271W WO2022038999A1 WO 2022038999 A1 WO2022038999 A1 WO 2022038999A1 JP 2021028271 W JP2021028271 W JP 2021028271W WO 2022038999 A1 WO2022038999 A1 WO 2022038999A1
Authority
WO
WIPO (PCT)
Prior art keywords
stator
rotor
insulator
core
inner peripheral
Prior art date
Application number
PCT/JP2021/028271
Other languages
French (fr)
Japanese (ja)
Inventor
康仁 塩谷
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2022543346A priority Critical patent/JPWO2022038999A1/ja
Priority to CN202180049032.9A priority patent/CN115803995A/en
Publication of WO2022038999A1 publication Critical patent/WO2022038999A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/16—Centering rotors within the stator; Balancing rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports

Definitions

  • This disclosure relates to a stator and a motor equipped with a stator.
  • Patent Document 1 a stator manufactured by winding a main winding or an auxiliary winding around an iron core continuously connected in a straight line and then connecting the ends in an annular shape is known (for example,).
  • a main winding 111, an auxiliary winding 112, and a speed control winding 113 are wound around a linearly continuous iron core 101.
  • the main winding 111 is alternately wound around the iron core 101 on the way from the main winding start end 111a to the main winding end 111b.
  • the auxiliary winding 112 is also alternately wound around the iron core 101 on the way from the auxiliary winding start end 112a to the auxiliary winding end 112b.
  • the speed control winding 113 is wound around the main winding 111 or the auxiliary winding 112, if necessary.
  • Each winding (main winding 111, auxiliary winding 112 and speed control winding 113) has a pair of end ends.
  • the speed control winding 113 is an auxiliary winding for making it possible to change the rotation speed of the motor.
  • the rotor is inserted into the stator in such a state, so it is necessary to insert the rotor very precisely. If there is any blurring in the insertion of the rotor, the outer peripheral curved surface of the rotor will come into contact with the annular portion of the stator and traverse the crossover portion of the main winding or auxiliary winding, that is, the main winding or auxiliary winding. Will break. In particular, when using a linear iron core as described above, when the rotor comes into contact with the annular member of the stator, the annular portion of the stator is not a little distorted, so that the winding is broken. The problem is noticeable.
  • the stator of the present disclosure includes a core, a winding, and an insulator that insulates between the core and the winding.
  • the stator of the present disclosure includes a rotor space for rotatably inserting the rotor on the inner peripheral side.
  • the insulator includes a board fixing portion for fixing the board to which the winding is connected.
  • the substrate fixing portion includes a bulging portion that bulges toward the inner peripheral side of the inner peripheral curved surface facing the rotor of the core.
  • the motor of the present disclosure includes the stator of the present disclosure described above.
  • FIG. 1 is a perspective view of an electric motor according to the first embodiment of the present disclosure.
  • FIG. 2 is a perspective view of the core according to the first embodiment of the present disclosure.
  • FIG. 3 is a perspective view of the insulator and the annular connection portion according to the first embodiment of the present disclosure.
  • FIG. 4 is a perspective view of the stator member according to the first embodiment of the present disclosure.
  • FIG. 5 is an explanatory diagram of assembly of the stator according to the first embodiment of the present disclosure.
  • FIG. 6 is a perspective view of the stator according to the first embodiment of the present disclosure.
  • FIG. 7 is a partial cross-sectional view of the substrate fixing portion when the rotor is placed according to the first embodiment of the present disclosure.
  • FIG. 8 is an explanatory diagram of assembly of the rotor and the stator according to the first embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram showing a simplified state of the conventional winding.
  • FIG. 1 is a perspective view of the electric motor 1 according to the present embodiment.
  • FIG. 2 is a perspective view of the core 5 according to the present embodiment.
  • the motor 1 includes a stator 2, a rotor 3, and a substrate 4.
  • the stator 2 includes an iron core, that is, a core 5, an insulator 6, and a winding 7.
  • the core 5 is integrally formed with a joint iron portion 8 formed on the outer diameter side, a base portion 17 protruding from the joint iron portion 8 to the inner peripheral side, and a tooth portion 9 provided at the tip of the base portion 17. ..
  • the core 5 is formed in an annular shape in the completed shape of the stator 2.
  • the tooth portion 9 is provided with a rotor space described later, in other words, an inner peripheral curved surface 33 facing the outer peripheral surface of the rotor 3 on the opposite side of the joint iron portion 8.
  • the insulator 6 is configured to cover the core 5, and a winding 7 which is a conductive wire mainly made of an alloy such as copper or aluminum is wound around a plurality of bases 17 via the insulator 6. Therefore, it plays a role of providing electrical insulation between the core 5 and the winding 7.
  • the winding 7 is wound around the core 5 partially covered with the insulator 6 from above the insulator 6.
  • the end of the winding 7 is entwined with a terminal pin (not shown) provided in the insulator 6, and is connected to the terminal pin by solder or the like.
  • the terminal connection may be made by fusing or the like.
  • the rotor 3 In the rotor space located at the center of the annular shape of the stator 2, the rotor 3 has an outer peripheral curved surface 34 (see FIG. 8) rotatably arranged so as to face the inner peripheral curved surface 33 of the core 5.
  • the rotor 3 rotates via the bearing 40 by energizing the winding 7, and as a result, the rotating shaft 10 rotates.
  • the height in the direction of the rotation axis 10 is substantially equal to the height in the same direction of the core 5.
  • the board 4 is electrically connected to the terminal pin to which the winding 7 is connected. As a result, the connection relationship between the plurality of windings 7 provided and the substrate 4 is maintained.
  • FIG. 3 is a perspective view of the insulator 6 and the annular connection portion 11 according to the present embodiment.
  • FIG. 4 is a perspective view of the stator member 12 in which the core is attached to the insulator 6 and the annular connection portion 11 of FIG.
  • the insulator 6 includes an outer peripheral portion 13, an inner peripheral portion 14, a connecting portion 15, and a guide portion 24.
  • the insulator 6 is connected by the annular connection portion 11.
  • the outer peripheral portion 13 is located on the outer peripheral side of the insulator 6 formed in an annular shape.
  • the outer peripheral portion 13 is adjacent to the inner peripheral surface of the joint iron portion 8 of the core 5 and covers the inner peripheral surface of the joint iron portion 8.
  • the inner peripheral portion 14 is located on the inner peripheral side of the insulator 6 formed in an annular shape.
  • the inner peripheral portion 14 is adjacent to the outer peripheral surface of the tooth portion 9 of the core 5 and covers the outer peripheral surface of the tooth portion 9.
  • the connecting portion 15 connects the outer peripheral portion 13 and the inner peripheral portion 14 and covers the base portion 17 of the core 5.
  • the connection portion 15 includes a through hole 16 for covering the base portion 17 of the core 5.
  • the guide portion 24 is provided parallel to the rotation axis 10 on the side surface of the outer peripheral portion 13 of the insulator 6, that is, on the connecting side 25.
  • the guide portion 24 regulates the adjacent insulator 6 so as to be slidable in parallel with the rotation shaft 10 when the adjacent insulator 6 is installed. That is, it contributes to maintaining the shape of the stator 2 on the outer peripheral side.
  • the through hole 16 is provided in the connection portion 15 and is a space for connecting the outer peripheral portion 13 and the inner peripheral portion 14, and the base portion 17 is located there.
  • FIG. 4 shows a stator member 12 in which the insulator set 19 is connected in an annular shape by the annular connecting portion 11.
  • the annular connection portion 11 is provided at one end of the insulator 6 in the axial direction, and connects the inner peripheral portions 14 constituting the insulator set 19 in an annular shape.
  • the annular connection portion 11 is an integrated structure integrally formed with the insulator 6.
  • the annular connection portion 11 is provided in parallel to the surface on the annular plane 18 virtually provided at one end of the insulator set 19. In other words, a plurality of insulator sets 19 are erected in the same direction (four downward in FIG. 3) with respect to the annular plane 18 as a reference.
  • the annular connection portion 11 includes a substrate fixing portion 20, an engaging portion 26, and a rib 32.
  • the substrate fixing portion 20 projects in the direction opposite to the insulator set 19 with respect to the annular plane 18 and is a portion for fixing the substrate 4. At least three board fixing portions 20 are provided in the circumferential direction. Further, the substrate fixing portion 20 includes a bulging portion 27 (see FIGS. 7 and 8) on the rotor space side in the ring shape of the stator 2. The details of the bulging portion 27 will be described later.
  • the engaging portions 26 are provided at both ends of the insulator 6.
  • one end side of the engaging portion 26 is referred to as an engaging portion 26B, and the other end side of the engaging portion 26 is referred to as an engaging portion 26A.
  • the insulator space is defined as a space formed between the adjacent insulator sets 19 and having a predetermined interval.
  • the engaging portion 26B is provided on the insulator space side of the annular connecting portion 11 and integrally formed with the annular connecting portion 11 in the same direction as the insulator set 19 with respect to the annular plane 18.
  • the engaging portion 26A is provided on the protruding tip 38 side of the inner peripheral portion 14 of the insulator 6.
  • the engaging portion 26A and the engaging portion 26B as the engaging portion 26 have an uneven shape that engages with each other. As a result, the movement in the radial direction when the insulator 6 is engaged is suppressed.
  • the rib 32 is a protrusion provided on at least one of the annular connection portion 11 or the inner peripheral portion 14 to support the transfer of the winding 7 to the adjacent insulator 6.
  • the rib 32 projects in the direction opposite to that of the insulator set 19 with respect to the annular plane 18. By crossing the crossover wire forming a part of the winding winding 7 between the insulators 6 via the rib 32, the crossover wire can be crossed along the ring of the annular connection portion 11, and the winding 7 can be cut off. It can be suppressed.
  • the rib 32 in FIGS. 3 and 4 is an example provided on the inner peripheral portion 14.
  • the insulator set 19 is arranged at equal intervals with respect to the annular connection portion 11. That is, in FIG. 4, the central axis 21 is arranged on the ring at intervals of 90 degrees with respect to the central axis 21 which is the center line passing through the center in the circumferential direction in the insulator set 19 and is parallel to the rotation axis 10. To. Further, in one stator member 12, the width 22 of the insulator space formed between the stator group 19 and the adjacent insulator group 19 coincides with the width 23 of the insulator group 19.
  • FIG. 5 is an assembly explanatory view of the stator 2 according to the present embodiment.
  • FIG. 6 is a perspective view of the stator 2 according to the present embodiment.
  • stator 2 At the time of assembling the stator 2, two stator members 12A and a stator member 12B in a state where the winding 7 is wound around the insulator 6 are prepared.
  • the central axes 21 of the two stator members 12A and 12B are displaced by 45 degrees, and the annular connection portion 11 (annular connection portion 11A and annular connection portion 11B) is a distant end of the stator member 12 of each other. Position it so that it is located in the part.
  • the insulator set 19 faces the insulator space of the facing stator member 12.
  • the substrate 4 With the engaging portion 26A and the engaging portion 26B engaged, the substrate 4 is placed on the substrate fixing portion 20, and the terminal pin to which the winding 7 is fixed is connected to the substrate 4, whereby the stator 2 is placed. Is completed. In the stator 2 shown in FIG. 6, the display of the substrate 4 is omitted.
  • adjacent insulator sets 19 are arranged on the same circumference.
  • the annular connection portion 11A is arranged at one end (upper end) of the insulator set 19.
  • the annular connection portion 11B is arranged at the other end (lower end) of the insulator set 19. That is, the annular connection portion 11A and the annular connection portion 11B are arranged at both ends of the stator 2 so as to face each other. That is, the stator 2 has a combination structure in which the insulator sets 19 are alternately positioned and combined so as to fill a predetermined interval from each other.
  • the stator 2 having such a shape can be wound around one stator member 12 from the outer periphery of the insulator 6 provided in an annular shape by a winding machine. Therefore, the winding machine can be miniaturized.
  • stator members 12 having the same shape, which can contribute to reducing the number of parts.
  • the inner peripheral portion 14 is the engaging portion 26, and the outer peripheral portion 13 is the guide portion 24, and the two stator members 12 are engaged with each other. Therefore, the annular shape of the stator 2 can be firmly maintained on the inner circumference and the outer circumference.
  • FIG. 7 is a partial cross-sectional view of the substrate fixing portion 20 when the rotor 3 is mounted according to the present embodiment.
  • FIG. 8 is an assembly explanatory view of the rotor 3 and the stator 2 according to the present embodiment.
  • the board fixing portion 20 includes a bulging portion 27.
  • the bulging portion 27 bulges toward the rotor space side in the radial direction from the inner peripheral curved surface 33 of the core 5 in a state where the stator 2 and the rotor 3 are combined.
  • the degree of bulging of the bulging portion 27 is such that the innermost peripheral end portion 36 of the bulging portion 27 is on the inner circumference rather than the inner peripheral curved surface 33 of the core 5 and comes into contact with the outer peripheral curved surface 34 of the rotor 3. .
  • the bulging portion 27 bulges in the inner peripheral direction with a gap length of about 35, which is the distance between the inner peripheral curved surface 33 and the outer peripheral curved surface 34, with the inner peripheral curved surface 33 as a reference.
  • the peripheral end portion 36 is located on the same circumference as the circumference formed by the outer peripheral curved surface 34.
  • the innermost peripheral end portion 36 of the bulging portion 27 may be bulged further to the inner circumference than the same circumference of the outer peripheral curved surface 34.
  • the rotation axis direction end portion 28 of the rotor 3 and the rotation axis direction end portion 37 of the core 5 substantially coincide with each other in the rotation axis direction.
  • the bulging portion 27 is located outside the rotor 3 in the rotation axis direction from the rotation axis direction end 28 (above the rotation axis direction end 28 in FIG. 7).
  • the bulging portion 27 includes an insertion gradient 29 and an extraction gradient 39.
  • the insertion gradient 29 is a gradient (inclination) toward the inner peripheral direction from the tip portion 31 of the substrate fixing portion 20 on the outer side in the rotation axis direction toward the rotor space.
  • the extraction gradient 39 is a gradient (inclination) toward the inner peripheral direction from the rotor space side toward the outside in the rotation axis direction (above the end portion 28 in the rotation axis direction in FIG. 7).
  • the end 41 on the rotor space side in the rotation axis direction is located on the outer peripheral side of the inner peripheral curved surface 33 of the core 5.
  • the inner end of the insertion gradient 29 in the rotation axis direction and the outer end of the extraction gradient 39 in the rotation axis direction intersect at the innermost peripheral end portion 36.
  • a gap length 35 is provided between the inner peripheral curved surface 33 of the core 5 and the outer peripheral curved surface 34 of the rotor 3.
  • the smaller the gap length 35 the higher the performance as an electric motor, and depending on the electric motor, it is less than 1 mm. In other words, there is only a gap having a gap length of 35 between the outer peripheral curved surface 34 of the rotor 3 and the inner peripheral curved surface 33 of the stator.
  • the stator 2 includes a bulging portion 27.
  • the rotor 3 rotates from either the vertical direction in the axial center 30 of the rotor space to the stator 2 with the rotational axis end 28 of the rotor 3 and the core 5. It is inserted until both the axial end portion 37 and the axial end portion 37 are located on the same plane. At this time, the outer peripheral curved surface 34 of the rotor 3 comes into contact with the bulging portion 27, and the rotation axis 10 of the rotor 3 is guided on the same line as the axis center 30 of the rotor space by the insertion gradient 29.
  • the bulging portion 27 is located outside the end portion 28 in the direction of the rotation axis. Therefore, even when the rotor 3 is rotationally driven, the bulging portion 27 can be operated without contacting the rotor 3.
  • the bearing 40 may be damaged by an impact or the like and an abnormal noise may be generated. Further, in the market as well, depending on the external environment, dust or dirt may enter the bearing 40 and generate an abnormal noise. In such a case, the rotor 3 is removed and the bearing 40 is replaced. At this time, by providing the extraction gradient 39 and providing the starting point of the extraction gradient 39 on the outer peripheral side of the inner peripheral curved surface 33 of the core 5, the end portion 28 in the rotation axis direction smoothly removes the extraction gradient 39 when the rotor 3 is removed. Contact. Therefore, the work of removing the rotor 3 can be facilitated, and damage to the parts due to forcible removal can be suppressed.
  • the bulging portions 27 are arranged evenly on the circumference, but it may be uneven, and at least three points may be provided for the purpose of guiding the rotor 3 to the center.
  • the shape of the bulging portion 27 may be any shape as long as it can support the outer peripheral curved surface 34 of the rotor 3.
  • insulator sets 19 are connected to one stator member 12, but the number is not limited to four if there are a plurality of insulator sets 19. In the AC motor, it is preferable to provide an even number of insulator sets 19 in one stator member 12 due to the characteristics of the winding.
  • the core 5, the insulator 6, the annular connection portion 11, that is, the insulator set 19 may be integrally molded.
  • a plurality of cores 5 are arranged in a mold, and the resin constituting the insulator 6 and the annular connection portion 11 is poured to form the insulator set 19. From the shape of the insulator set 19 thus generated, it can be confirmed in the product state that the insulator set 19 is integrally formed as a product.
  • the core 5 is formed in an annular shape in the completed shape of the stator 2, but may be linear at the time of manufacture.
  • the linear core 5 tends to be distorted when it is formed into an annulus, and the effect of the present application is great.
  • the stator 2 configured in this way can be used for the motor 1, and the motor 1 can be suitably used for the blower.
  • the stator according to the present disclosure is useful as it can improve the manufacturing efficiency of the motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

A stator (2) according to the present disclosure is provided with a core (5), windings, and an insulator (6) that insulates the core (5) from the windings. The stator (2) comprises a rotor space on the inner circumferential side thereof into which a rotor (3) is rotatably inserted. The insulator (6) comprises a substrate fixing part (20) that fixes a substrate connecting the windings. The substrate fixing part (20) comprises a bulging part (27) bulging on the inner circumferential side beyond an inner circumferential curved surface of the core (5) facing the rotor (3).

Description

固定子およびそれを備えた電動機Stator and motor with it
　本開示は、固定子および固定子を備える電動機に関する。 This disclosure relates to a stator and a motor equipped with a stator.
　従来、直線状に連続して接続された鉄心に、主巻線または補巻線などを巻き回した後、端部を円環状に接続して製造された固定子が知られている（例えば、特許文献１）。 Conventionally, a stator manufactured by winding a main winding or an auxiliary winding around an iron core continuously connected in a straight line and then connecting the ends in an annular shape is known (for example,). Patent Document 1).
　以下にその構成について、図９を参照しながら説明する。 The configuration will be described below with reference to FIG.
　図９に示すように、直線状に連続した鉄心１０１には、主巻線１１１、補巻線１１２および速調巻線１１３（補助巻線）が巻き回されている。詳細には、主巻線１１１は、主巻線始端１１１ａから主巻線終端１１１ｂに向かう途中で、鉄心１０１に交互に巻回されている。また、補巻線１１２も同様に、補巻線始端１１２ａから補巻線終端１１２ｂに向かう途中で、鉄心１０１に交互に巻回されている。また、速調巻線１１３は、必要に応じて、主巻線１１１または補巻線１１２に巻回される。各巻線（主巻線１１１、補巻線１１２および速調巻線１１３）は、一対で終始の末端が存在する。 As shown in FIG. 9, a main winding 111, an auxiliary winding 112, and a speed control winding 113 (auxiliary winding) are wound around a linearly continuous iron core 101. Specifically, the main winding 111 is alternately wound around the iron core 101 on the way from the main winding start end 111a to the main winding end 111b. Similarly, the auxiliary winding 112 is also alternately wound around the iron core 101 on the way from the auxiliary winding start end 112a to the auxiliary winding end 112b. Further, the speed control winding 113 is wound around the main winding 111 or the auxiliary winding 112, if necessary. Each winding (main winding 111, auxiliary winding 112 and speed control winding 113) has a pair of end ends.
　なお、速調巻線１１３とは、電動機の回転速度を変更可能にするための補助巻線である。 The speed control winding 113 is an auxiliary winding for making it possible to change the rotation speed of the motor.
特開２０１３－２１５０２３号公報Japanese Unexamined Patent Publication No. 2013-21502
　ところで、一般的な電動機において、回転子を固定子の回転子空間に挿通した組み立て状態においては、性能向上のため、鉄心の内周曲面と回転子の外周曲面との間には、わずかなギャップ長（隙間）しか存在しない。 By the way, in a general electric motor, in the assembled state where the rotor is inserted into the rotor space of the stator, there is a slight gap between the inner peripheral curved surface of the iron core and the outer peripheral curved surface of the rotor in order to improve the performance. There is only a length (gap).
　通常、このような状態で回転子を固定子に挿通するため、回転子の挿通は非常に精密に行う必要がある。回転子の挿通に少しでもブレが存在すると、回転子の外周曲面が固定子の円環状部分に接触し、主巻線または補助巻線の渡り線部分を踏み切る、すなわち主巻線または補助巻線が断線してしまう。特に、上述のような直線状の鉄心を利用する場合、回転子が固定子の円環状部材に接触すると、固定子の円環状部分に少なからずひずみが生じてしまうため、巻線の断線などの問題が顕著に表れる。 Normally, the rotor is inserted into the stator in such a state, so it is necessary to insert the rotor very precisely. If there is any blurring in the insertion of the rotor, the outer peripheral curved surface of the rotor will come into contact with the annular portion of the stator and traverse the crossover portion of the main winding or auxiliary winding, that is, the main winding or auxiliary winding. Will break. In particular, when using a linear iron core as described above, when the rotor comes into contact with the annular member of the stator, the annular portion of the stator is not a little distorted, so that the winding is broken. The problem is noticeable.
　また、回転子の固定子への接触を防止するために治具を用いることで、作業性が悪化するという課題もあった。 There is also a problem that workability deteriorates by using a jig to prevent the rotor from coming into contact with the stator.
　本開示の固定子は、コアと、巻線と、コアおよび巻線の間を絶縁するインシュレータと、を備える。本開示の固定子は、内周側に回転子を回転可能に挿入するための回転子空間を備える。インシュレータは、巻線を接続する基板を固定する基板固定部を備える。基板固定部は、コアの回転子に対向する内周曲面よりも内周側に膨出する膨出部を備える。 The stator of the present disclosure includes a core, a winding, and an insulator that insulates between the core and the winding. The stator of the present disclosure includes a rotor space for rotatably inserting the rotor on the inner peripheral side. The insulator includes a board fixing portion for fixing the board to which the winding is connected. The substrate fixing portion includes a bulging portion that bulges toward the inner peripheral side of the inner peripheral curved surface facing the rotor of the core.
　また、本開示の電動機は、上述の本開示の固定子を備える。 Further, the motor of the present disclosure includes the stator of the present disclosure described above.
　本開示によれば、回転子を固定子に挿入する際に、治具などを用いることなく精密な挿入が可能となる。 According to the present disclosure, when inserting the rotor into the stator, precise insertion is possible without using a jig or the like.
図１は、本開示の実施の形態１に係る電動機の斜視図である。FIG. 1 is a perspective view of an electric motor according to the first embodiment of the present disclosure. 図２は、本開示の実施の形態１に係るコアの斜視図である。FIG. 2 is a perspective view of the core according to the first embodiment of the present disclosure. 図３は、本開示の実施の形態１に係るインシュレータおよび環状接続部の斜視図である。FIG. 3 is a perspective view of the insulator and the annular connection portion according to the first embodiment of the present disclosure. 図４は、本開示の実施の形態１に係る固定子部材の斜視図である。FIG. 4 is a perspective view of the stator member according to the first embodiment of the present disclosure. 図５は、本開示の実施の形態１に係る固定子の組み立て説明図である。FIG. 5 is an explanatory diagram of assembly of the stator according to the first embodiment of the present disclosure. 図６は、本開示の実施の形態１に係る固定子の斜視図である。FIG. 6 is a perspective view of the stator according to the first embodiment of the present disclosure. 図７は、本開示の実施の形態１に係る回転子載置時の基板固定部における一部断面図である。FIG. 7 is a partial cross-sectional view of the substrate fixing portion when the rotor is placed according to the first embodiment of the present disclosure. 図８は、本開示の実施の形態１に係る回転子と固定子の組み立て説明図である。FIG. 8 is an explanatory diagram of assembly of the rotor and the stator according to the first embodiment of the present disclosure. 図９は、従来の巻線の状態を簡略化して示す模式図である。FIG. 9 is a schematic diagram showing a simplified state of the conventional winding.
　以下、本開示の実施の形態について図面を参照しながら説明する。なお、以下の実施の形態は、本開示を具体化した一例であって、本開示の技術的範囲を限定するものではない。また、全図面を通して、同一の部位については同一の符号を付して二度目以降の説明を省略または簡略化している。さらに、各図面において、本開示に直接には関係しない各部の詳細については説明を省略している。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The following embodiments are examples that embody the present disclosure, and do not limit the technical scope of the present disclosure. In addition, throughout the drawings, the same parts are designated by the same reference numerals, and the second and subsequent explanations are omitted or simplified. Further, in each drawing, the details of each part not directly related to the present disclosure are omitted.
　（実施の形態１）
　本開示の実施の形態１について、図面を参照しながら説明する。 (Embodiment 1)
Embodiment 1 of the present disclosure will be described with reference to the drawings.
　まず、図１、図２を用いて本実施の形態に係る電動機１について説明する。図１は、本実施の形態に係る電動機１の斜視図である。図２は、本実施の形態に係るコア５の斜視図である。 First, the electric motor 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of the electric motor 1 according to the present embodiment. FIG. 2 is a perspective view of the core 5 according to the present embodiment.
　電動機１は、固定子２と、回転子３と、基板４とを備えている。 The motor 1 includes a stator 2, a rotor 3, and a substrate 4.
　固定子２は、鉄心すなわちコア５と、インシュレータ６と、巻線７とを備えている。 The stator 2 includes an iron core, that is, a core 5, an insulator 6, and a winding 7.
　コア５は、外径側に形成される継鉄部８と、継鉄部８から内周側に突出する基部１７と、基部１７の先端に設けられた歯部９とが一体に形成される。コア５は、固定子２の完成形状において、円環状に構成される。 The core 5 is integrally formed with a joint iron portion 8 formed on the outer diameter side, a base portion 17 protruding from the joint iron portion 8 to the inner peripheral side, and a tooth portion 9 provided at the tip of the base portion 17. .. The core 5 is formed in an annular shape in the completed shape of the stator 2.
　歯部９は、継鉄部８とは逆側に、後述の回転子空間、言い換えると回転子３の外周面に面する内周曲面３３を備えている。 The tooth portion 9 is provided with a rotor space described later, in other words, an inner peripheral curved surface 33 facing the outer peripheral surface of the rotor 3 on the opposite side of the joint iron portion 8.
　インシュレータ６は、コア５を覆う構成であって、銅またはアルミニウムなどの合金を主な素材とする導電線である巻線７を、インシュレータ６を介して複数の基部１７に対して巻回することで、コア５と巻線７との電気的絶縁を図る役割を果たす。 The insulator 6 is configured to cover the core 5, and a winding 7 which is a conductive wire mainly made of an alloy such as copper or aluminum is wound around a plurality of bases 17 via the insulator 6. Therefore, it plays a role of providing electrical insulation between the core 5 and the winding 7.
　巻線７は、インシュレータ６で部分的に覆われたコア５に、インシュレータ６上から巻回される。巻線７の末端は、インシュレータ６に備えた端子ピン（図示せず）に絡げられ、当該端子ピンにはんだなどで接続される。なお、末端の接続は、ヒュージングなどで行われても良い。 The winding 7 is wound around the core 5 partially covered with the insulator 6 from above the insulator 6. The end of the winding 7 is entwined with a terminal pin (not shown) provided in the insulator 6, and is connected to the terminal pin by solder or the like. The terminal connection may be made by fusing or the like.
　回転子３は、固定子２の円環状における中心に位置する回転子空間において、外周曲面３４（図８参照）がコア５の内周曲面３３に対向して回転可能に配置される。回転子３は、巻線７に通電することにより軸受け４０を介して回転し、結果として回転軸１０が回転する。回転軸１０方向の高さは、コア５の同方向の高さと概ね等しい。 In the rotor space located at the center of the annular shape of the stator 2, the rotor 3 has an outer peripheral curved surface 34 (see FIG. 8) rotatably arranged so as to face the inner peripheral curved surface 33 of the core 5. The rotor 3 rotates via the bearing 40 by energizing the winding 7, and as a result, the rotating shaft 10 rotates. The height in the direction of the rotation axis 10 is substantially equal to the height in the same direction of the core 5.
　基板４は、巻線７が接続された端子ピンと電気的に接続する。これにより、複数本設けられた巻線７と基板４との接続関係がを維持される。 The board 4 is electrically connected to the terminal pin to which the winding 7 is connected. As a result, the connection relationship between the plurality of windings 7 provided and the substrate 4 is maintained.
　続いて、図３、図４を用いてインシュレータ６およびそれを含むインシュレータ組の詳細について説明する。図３は、本実施の形態に係るインシュレータ６および環状接続部１１の斜視図である。図４は、図３のインシュレータ６および環状接続部１１に対してコアが装着された、固定子部材１２の斜視図である。 Subsequently, the details of the insulator 6 and the insulator set including the insulator 6 will be described with reference to FIGS. 3 and 4. FIG. 3 is a perspective view of the insulator 6 and the annular connection portion 11 according to the present embodiment. FIG. 4 is a perspective view of the stator member 12 in which the core is attached to the insulator 6 and the annular connection portion 11 of FIG.
　インシュレータ６は、外周部１３と、内周部１４と、接続部１５と、ガイド部２４と、を備える。インシュレータ６は、環状接続部１１で接続される。 The insulator 6 includes an outer peripheral portion 13, an inner peripheral portion 14, a connecting portion 15, and a guide portion 24. The insulator 6 is connected by the annular connection portion 11.
　外周部１３は、環状に形成されたインシュレータ６の外周側に位置する。外周部１３は、コア５の継鉄部８の内周面に隣接して継鉄部８の内周面を覆う。 The outer peripheral portion 13 is located on the outer peripheral side of the insulator 6 formed in an annular shape. The outer peripheral portion 13 is adjacent to the inner peripheral surface of the joint iron portion 8 of the core 5 and covers the inner peripheral surface of the joint iron portion 8.
　内周部１４は、環状に形成されたインシュレータ６の内周側に位置する。内周部１４は、コア５の歯部９の外周面に隣接して歯部９の外周面を覆う。 The inner peripheral portion 14 is located on the inner peripheral side of the insulator 6 formed in an annular shape. The inner peripheral portion 14 is adjacent to the outer peripheral surface of the tooth portion 9 of the core 5 and covers the outer peripheral surface of the tooth portion 9.
　接続部１５は、外周部１３と内周部１４とを接続し、コア５の基部１７を覆う。接続部１５は、コア５の基部１７を覆うための貫通孔１６を備える。 The connecting portion 15 connects the outer peripheral portion 13 and the inner peripheral portion 14 and covers the base portion 17 of the core 5. The connection portion 15 includes a through hole 16 for covering the base portion 17 of the core 5.
　ガイド部２４は、インシュレータ６における外周部１３の側面、つまり接続辺２５において、回転軸１０に平行に設けられる。ガイド部２４は、隣接するインシュレータ６の設置時に、隣接するインシュレータ６を回転軸１０に平行に摺動可能に規制する。つまり、固定子２の外周側の形状維持に寄与する。 The guide portion 24 is provided parallel to the rotation axis 10 on the side surface of the outer peripheral portion 13 of the insulator 6, that is, on the connecting side 25. The guide portion 24 regulates the adjacent insulator 6 so as to be slidable in parallel with the rotation shaft 10 when the adjacent insulator 6 is installed. That is, it contributes to maintaining the shape of the stator 2 on the outer peripheral side.
　貫通孔１６は、接続部１５に設けられ、外周部１３と内周部１４とを接続する空間であり、基部１７が位置する。 The through hole 16 is provided in the connection portion 15 and is a space for connecting the outer peripheral portion 13 and the inner peripheral portion 14, and the base portion 17 is located there.
　インシュレータ６にコア５が設けられた状態、つまり一個のインシュレータ６と一個のコア５とのセットを、インシュレータ組１９（図６参照）とする。コア５にインシュレータ６が装着されることにより、インシュレータ組１９が構成される。図４は、インシュレータ組１９が環状接続部１１にて環状に連結されて構成された固定子部材１２を示す。 The state in which the core 5 is provided in the insulator 6, that is, the set of one insulator 6 and one core 5 is referred to as an insulator set 19 (see FIG. 6). By mounting the insulator 6 on the core 5, the insulator set 19 is configured. FIG. 4 shows a stator member 12 in which the insulator set 19 is connected in an annular shape by the annular connecting portion 11.
　環状接続部１１は、インシュレータ６の軸方向における一端部に設けられ、インシュレータ組１９を構成する内周部１４を環状に接続する。環状接続部１１は、インシュレータ６と一体形成された一体型の構造体である。環状接続部１１は、インシュレータ組１９の一端に仮想的に設けられた環状平面１８上に、面平行に設けられる。言い換えると、インシュレータ組１９は、環状平面１８を基準として、同一方向に複数個（図３においては下方に向けて４個）立設される。環状接続部１１は、基板固定部２０と、係合部２６と、リブ３２とを備える。 The annular connection portion 11 is provided at one end of the insulator 6 in the axial direction, and connects the inner peripheral portions 14 constituting the insulator set 19 in an annular shape. The annular connection portion 11 is an integrated structure integrally formed with the insulator 6. The annular connection portion 11 is provided in parallel to the surface on the annular plane 18 virtually provided at one end of the insulator set 19. In other words, a plurality of insulator sets 19 are erected in the same direction (four downward in FIG. 3) with respect to the annular plane 18 as a reference. The annular connection portion 11 includes a substrate fixing portion 20, an engaging portion 26, and a rib 32.
　基板固定部２０は、環状平面１８に対してインシュレータ組１９とは逆方向に突出し、基板４を固定するための部位である。基板固定部２０は、周方向に少なくとも三個以上備えられる。また、基板固定部２０は、固定子２の環形状における回転子空間側に、膨出部２７（図７、図８参照）を備える。なお、膨出部２７の詳細については後述する。 The substrate fixing portion 20 projects in the direction opposite to the insulator set 19 with respect to the annular plane 18 and is a portion for fixing the substrate 4. At least three board fixing portions 20 are provided in the circumferential direction. Further, the substrate fixing portion 20 includes a bulging portion 27 (see FIGS. 7 and 8) on the rotor space side in the ring shape of the stator 2. The details of the bulging portion 27 will be described later.
　係合部２６は、インシュレータ６の両端に設けられる。ここで、係合部２６の一端側を係合部２６Ｂとし、係合部２６の他端側を係合部２６Ａとする。また、インシュレータ空間を、隣接するインシュレータ組１９との間に形成され、所定の間隔を有する空間と定義する。 The engaging portions 26 are provided at both ends of the insulator 6. Here, one end side of the engaging portion 26 is referred to as an engaging portion 26B, and the other end side of the engaging portion 26 is referred to as an engaging portion 26A. Further, the insulator space is defined as a space formed between the adjacent insulator sets 19 and having a predetermined interval.
　係合部２６Ｂは、環状接続部１１におけるインシュレータ空間側であって、環状平面１８に対してインシュレータ組１９と同方向に環状接続部１１と一体形成して設けられる。 The engaging portion 26B is provided on the insulator space side of the annular connecting portion 11 and integrally formed with the annular connecting portion 11 in the same direction as the insulator set 19 with respect to the annular plane 18.
　係合部２６Ａは、インシュレータ６の内周部１４における突出先端３８側に設けられる。 The engaging portion 26A is provided on the protruding tip 38 side of the inner peripheral portion 14 of the insulator 6.
　二つの係合部２６Ａ、係合部２６Ｂが係合することで、内周部１４の突出先端３８と環状接続部１１との位置を固定し、固定子２の内周側の形状維持に寄与する。 By engaging the two engaging portions 26A and 26B, the positions of the protruding tip 38 of the inner peripheral portion 14 and the annular connecting portion 11 are fixed, which contributes to maintaining the shape of the stator 2 on the inner peripheral side. do.
　係合部２６としての係合部２６Ａと係合部２６Ｂとは、互いに係合する凹凸形状を有する。これにより、インシュレータ６の係合時における径方向への移動を抑制する。 The engaging portion 26A and the engaging portion 26B as the engaging portion 26 have an uneven shape that engages with each other. As a result, the movement in the radial direction when the insulator 6 is engaged is suppressed.
　リブ３２は、環状接続部１１または内周部１４の少なくとも一方に、巻線７の隣接するインシュレータ６への渡りをサポートするために設けられる突出部である。リブ３２は、環状平面１８に対してインシュレータ組１９とは逆方向に突出している。巻線７の一部を構成する渡り線がリブ３２を介してインシュレータ６間を渡ることで、渡り線を環状接続部１１の環に沿って渡らせることができ、巻線７の切断などを抑制することができる。なお、図３、図４におけるリブ３２は、内周部１４に設けられた例である。 The rib 32 is a protrusion provided on at least one of the annular connection portion 11 or the inner peripheral portion 14 to support the transfer of the winding 7 to the adjacent insulator 6. The rib 32 projects in the direction opposite to that of the insulator set 19 with respect to the annular plane 18. By crossing the crossover wire forming a part of the winding winding 7 between the insulators 6 via the rib 32, the crossover wire can be crossed along the ring of the annular connection portion 11, and the winding 7 can be cut off. It can be suppressed. The rib 32 in FIGS. 3 and 4 is an example provided on the inner peripheral portion 14.
　インシュレータ組１９は、環状接続部１１に対して等間隔に配置される。つまり、図４においては、インシュレータ組１９における周方向の中心を通る中心線であって、回転軸１０に平行な中心軸２１を基準とすると、中心軸２１が環上に９０度間隔で配置される。また、一個の固定子部材１２において、隣接するインシュレータ組１９との間に形成されるインシュレータ空間の幅２２は、インシュレータ組１９の幅２３と一致する。 The insulator set 19 is arranged at equal intervals with respect to the annular connection portion 11. That is, in FIG. 4, the central axis 21 is arranged on the ring at intervals of 90 degrees with respect to the central axis 21 which is the center line passing through the center in the circumferential direction in the insulator set 19 and is parallel to the rotation axis 10. To. Further, in one stator member 12, the width 22 of the insulator space formed between the stator group 19 and the adjacent insulator group 19 coincides with the width 23 of the insulator group 19.
　続いて、固定子２の形成手順について、図５、図６を用いて説明する。図５は、本実施の形態に係る固定子２の組み立て説明図である。図６は、本実施の形態に係る固定子２の斜視図である。 Subsequently, the procedure for forming the stator 2 will be described with reference to FIGS. 5 and 6. FIG. 5 is an assembly explanatory view of the stator 2 according to the present embodiment. FIG. 6 is a perspective view of the stator 2 according to the present embodiment.
　固定子２の組み立て時には、インシュレータ６に巻線７が巻かれた状態の二個の固定子部材１２Ａ、固定子部材１２Ｂを準備する。二個の固定子部材１２Ａ，１２Ｂは、互いの中心軸２１が４５度ずれた状態、かつ環状接続部１１（環状接続部１１Ａ、環状接続部１１Ｂ）が、互いの固定子部材１２における遠方端部に位置するよう、位置取りする。この状態では、インシュレータ組１９は、対向する固定子部材１２のインシュレータ空間と対向する。 At the time of assembling the stator 2, two stator members 12A and a stator member 12B in a state where the winding 7 is wound around the insulator 6 are prepared. In the two stator members 12A and 12B, the central axes 21 of the two stator members 12A and 12B are displaced by 45 degrees, and the annular connection portion 11 (annular connection portion 11A and annular connection portion 11B) is a distant end of the stator member 12 of each other. Position it so that it is located in the part. In this state, the insulator set 19 faces the insulator space of the facing stator member 12.
　この状態で、矢印３０Ａ、矢印３０Ｂの方向に、固定子部材１２Ａ、固定子部材１２Ｂを接近させていくと、インシュレータ６に設けられた対応するガイド部２４Ａ、ガイド部２４Ｂが互いに摺動して、環状を保った状態で、固定子部材１２Ａと、固定子部材１２Ｂとが接続される。固定子部材１２Ａと、固定子部材１２Ｂとの接続状態においては、インシュレータ６の突出先端３８に設けられた係合部２６Ａと、環状接続部１１に設けられた係合部２６Ｂとが係合される。係合部２６Ａと係合部２６Ｂとが係合された状態で、基板固定部２０に基板４を配置し、巻線７が固定された端子ピンを基板４に接続することで、固定子２が完成する。なお、図６に示した固定子２は、基板４の表示を省略している。 In this state, when the stator member 12A and the stator member 12B are brought closer to each other in the directions of the arrows 30A and 30B, the corresponding guide portions 24A and the guide portions 24B provided in the insulator 6 slide with each other. The stator member 12A and the stator member 12B are connected while maintaining the annular shape. In the connected state between the stator member 12A and the stator member 12B, the engaging portion 26A provided at the protruding tip 38 of the insulator 6 and the engaging portion 26B provided at the annular connecting portion 11 are engaged with each other. To. With the engaging portion 26A and the engaging portion 26B engaged, the substrate 4 is placed on the substrate fixing portion 20, and the terminal pin to which the winding 7 is fixed is connected to the substrate 4, whereby the stator 2 is placed. Is completed. In the stator 2 shown in FIG. 6, the display of the substrate 4 is omitted.
　この状態では、図６に示すように、隣接するインシュレータ組１９は、同一周上に配置される。また、環状接続部１１Ａは、インシュレータ組１９の一端（上端）に配置される。環状接続部１１Ｂは、インシュレータ組１９の他端（下端）に配置される。すなわち、環状接続部１１Ａおよび環状接続部１１Ｂは、互いに対向して固定子２の両端に配置される。つまり、固定子２は、インシュレータ組１９が互いに所定の間隔を埋めるよう交互に位置させて組み合わせた、組み合わせ構造を有する。 In this state, as shown in FIG. 6, adjacent insulator sets 19 are arranged on the same circumference. Further, the annular connection portion 11A is arranged at one end (upper end) of the insulator set 19. The annular connection portion 11B is arranged at the other end (lower end) of the insulator set 19. That is, the annular connection portion 11A and the annular connection portion 11B are arranged at both ends of the stator 2 so as to face each other. That is, the stator 2 has a combination structure in which the insulator sets 19 are alternately positioned and combined so as to fill a predetermined interval from each other.
　このような形状を有する固定子２は、一個の固定子部材１２に対して、巻線機により、環状に設けられたインシュレータ６の外周から巻線を施すことが可能となる。このため、巻線機の小型化が可能になる。 The stator 2 having such a shape can be wound around one stator member 12 from the outer periphery of the insulator 6 provided in an annular shape by a winding machine. Therefore, the winding machine can be miniaturized.
　また、２つの同一形状の固定子部材１２を製造すればよく、部品点数の少数化に寄与できる。 Further, it is sufficient to manufacture two stator members 12 having the same shape, which can contribute to reducing the number of parts.
　さらに、内周部１４は係合部２６で、外周部１３はガイド部２４で２つの固定子部材１２が係合される。このため、固定子２の環状を内周および外周にて強固に維持することができる。 Further, the inner peripheral portion 14 is the engaging portion 26, and the outer peripheral portion 13 is the guide portion 24, and the two stator members 12 are engaged with each other. Therefore, the annular shape of the stator 2 can be firmly maintained on the inner circumference and the outer circumference.
　続いて、図７および図８を用いて、膨出部の構成、および回転子３と固定子２の組み立て手順について説明する。図７は、本実施の形態に係る回転子３載置時の基板固定部２０における一部断面図である。図８は、本実施の形態に係る回転子３と固定子２の組み立て説明図である。 Subsequently, with reference to FIGS. 7 and 8, the configuration of the bulging portion and the procedure for assembling the rotor 3 and the stator 2 will be described. FIG. 7 is a partial cross-sectional view of the substrate fixing portion 20 when the rotor 3 is mounted according to the present embodiment. FIG. 8 is an assembly explanatory view of the rotor 3 and the stator 2 according to the present embodiment.
　基板固定部２０は、図７に示すように、膨出部２７を備えている。 As shown in FIG. 7, the board fixing portion 20 includes a bulging portion 27.
　膨出部２７は、固定子２と回転子３とが組み合わされた状態において、コア５の内周曲面３３よりも、径方向で回転子空間側へ膨出している。膨出部２７の膨出度合いは、膨出部２７の最内周端部３６が、コア５の内周曲面３３よりも内周であって回転子３の外周曲面３４と接触する程度である。言い換えると、膨出部２７は、内周曲面３３を基準として、内周曲面３３と外周曲面３４との距離であるギャップ長３５程度、内周方向に膨出しており、軸視において、最内周端部３６が、外周曲面３４にて形成される円周と同一円周上に位置している。なお、膨出部２７の最内周端部３６を、外周曲面３４の同一円周よりもさらに内周まで膨出させてもよい。 The bulging portion 27 bulges toward the rotor space side in the radial direction from the inner peripheral curved surface 33 of the core 5 in a state where the stator 2 and the rotor 3 are combined. The degree of bulging of the bulging portion 27 is such that the innermost peripheral end portion 36 of the bulging portion 27 is on the inner circumference rather than the inner peripheral curved surface 33 of the core 5 and comes into contact with the outer peripheral curved surface 34 of the rotor 3. .. In other words, the bulging portion 27 bulges in the inner peripheral direction with a gap length of about 35, which is the distance between the inner peripheral curved surface 33 and the outer peripheral curved surface 34, with the inner peripheral curved surface 33 as a reference. The peripheral end portion 36 is located on the same circumference as the circumference formed by the outer peripheral curved surface 34. The innermost peripheral end portion 36 of the bulging portion 27 may be bulged further to the inner circumference than the same circumference of the outer peripheral curved surface 34.
　固定子２と回転子３とが組み合わされた状態において、回転子３の回転軸方向端部２８とコア５の回転軸方向端部３７とは、回転軸方向でほぼ一致している。そして、膨出部２７は、回転子３の回転軸方向端部２８より回転軸方向において、外側（図７における回転軸方向端部２８よりも上側）に位置している。 In the state where the stator 2 and the rotor 3 are combined, the rotation axis direction end portion 28 of the rotor 3 and the rotation axis direction end portion 37 of the core 5 substantially coincide with each other in the rotation axis direction. The bulging portion 27 is located outside the rotor 3 in the rotation axis direction from the rotation axis direction end 28 (above the rotation axis direction end 28 in FIG. 7).
　また、膨出部２７は、挿入勾配２９と、抜去勾配３９とを備える。 Further, the bulging portion 27 includes an insertion gradient 29 and an extraction gradient 39.
　挿入勾配２９は、回転軸方向の外側にある基板固定部２０の先端部３１から回転子空間に向かうにつれて内周方向に向かう勾配（傾斜）である。 The insertion gradient 29 is a gradient (inclination) toward the inner peripheral direction from the tip portion 31 of the substrate fixing portion 20 on the outer side in the rotation axis direction toward the rotor space.
　抜去勾配３９は、回転子空間側から回転軸方向の外側（図７における回転軸方向端部２８よりも上側）に向かうにつれて内周方向に向かう勾配（傾斜）である。抜去勾配３９は、回転軸方向の回転子空間側の端部４１がコア５の内周曲面３３よりも外周側に位置する。挿入勾配２９の回転軸方向の内側の端部と、抜去勾配３９の回転軸方向の外側の端部とは、最内周端部３６で交わる。 The extraction gradient 39 is a gradient (inclination) toward the inner peripheral direction from the rotor space side toward the outside in the rotation axis direction (above the end portion 28 in the rotation axis direction in FIG. 7). In the extraction gradient 39, the end 41 on the rotor space side in the rotation axis direction is located on the outer peripheral side of the inner peripheral curved surface 33 of the core 5. The inner end of the insertion gradient 29 in the rotation axis direction and the outer end of the extraction gradient 39 in the rotation axis direction intersect at the innermost peripheral end portion 36.
　以上が、膨出部２７の構成である。 The above is the configuration of the bulging portion 27.
　ところで、回転子３を固定子２の回転子空間に挿通した組み立て状態においては、コア５の内周曲面３３と回転子３の外周曲面３４との間に、ギャップ長３５が設けられている。ギャップ長３５は、小さい方が電動機としての性能が高くなり、電動機によっては１ｍｍにも満たない。言い換えると、回転子３の外周曲面３４と固定子の内周曲面３３との間には、ギャップ長３５の隙間しか存在しない。 By the way, in the assembled state in which the rotor 3 is inserted into the rotor space of the stator 2, a gap length 35 is provided between the inner peripheral curved surface 33 of the core 5 and the outer peripheral curved surface 34 of the rotor 3. The smaller the gap length 35, the higher the performance as an electric motor, and depending on the electric motor, it is less than 1 mm. In other words, there is only a gap having a gap length of 35 between the outer peripheral curved surface 34 of the rotor 3 and the inner peripheral curved surface 33 of the stator.
　通常、このような状態で、電動機１の組み立て時には回転子３を固定子２の回転子空間に挿通するため、回転子３の挿通は非常に精密に行う必要がある。回転子３の挿通に少しでもブレが存在すると、外周曲面３４が環状接続部１１に接触し、環状接続部１１のリブ３２間に引き回されている渡り線を踏み切る、すなわち渡り線が断線するに至る。 Normally, in such a state, when assembling the motor 1, the rotor 3 is inserted into the rotor space of the stator 2, so that the rotor 3 needs to be inserted very precisely. If there is any blurring in the insertion of the rotor 3, the outer peripheral curved surface 34 comes into contact with the annular connection portion 11 and cuts off the crossover line drawn between the ribs 32 of the annular connection portion 11, that is, the crossover wire is broken. To.
　これに対して、本実施の形態に係る固定子２は、膨出部２７を備えている。回転子３を固定子２に挿通する際、回転子３は、回転子空間の軸中心３０における上下方向いずれかから固定子２に、回転子３の回転軸方向端部２８とコア５の回転軸方向端部３７との両方が同一平面上に位置するまで挿通される。この際、回転子３の外周曲面３４は、膨出部２７に接触し、さらに挿入勾配２９によって回転子３の回転軸１０が回転子空間の軸中心３０と同一線上に導かれる。 On the other hand, the stator 2 according to the present embodiment includes a bulging portion 27. When the rotor 3 is inserted through the stator 2, the rotor 3 rotates from either the vertical direction in the axial center 30 of the rotor space to the stator 2 with the rotational axis end 28 of the rotor 3 and the core 5. It is inserted until both the axial end portion 37 and the axial end portion 37 are located on the same plane. At this time, the outer peripheral curved surface 34 of the rotor 3 comes into contact with the bulging portion 27, and the rotation axis 10 of the rotor 3 is guided on the same line as the axis center 30 of the rotor space by the insertion gradient 29.
　これにより、回転子３の挿通時における位置の精密性が確保される。従って、環状平面１８上に渡り線を引き回し、この渡り線が弛みによって回転子空間へ近接したとしても、膨出部２７が回転子３を精密に中央に誘導する。このため、回転子３の挿入不良で渡り線を踏み切ることを抑制できる。 This ensures the accuracy of the position when the rotor 3 is inserted. Therefore, even if a crossover is drawn on the annular plane 18 and the crossover approaches the rotor space due to slack, the bulging portion 27 precisely guides the rotor 3 to the center. Therefore, it is possible to prevent the crossover from being crossed due to a defective insertion of the rotor 3.
　更に、膨出部２７は回転軸方向端部２８の外側に位置する。このため、回転子３の回転駆動時であっても、膨出部２７が回転子３に接触することなく運転することができる。 Further, the bulging portion 27 is located outside the end portion 28 in the direction of the rotation axis. Therefore, even when the rotor 3 is rotationally driven, the bulging portion 27 can be operated without contacting the rotor 3.
　また、回転子３を固定子２の回転子空間に挿通する組み立て過程において、稀に軸受け４０が衝撃などでダメージを受け異音が発生することがある。また、市場においても、外部環境によっては軸受け４０に塵埃や砂塵が入り込み、異音が発生することがある。このような場合、回転子３を抜去して軸受け４０を交換することになる。この際、抜去勾配３９を備えて、コア５の内周曲面３３よりも外周側に抜去勾配３９の起点を設けることで、回転子３の抜去時に回転軸方向端部２８がスムーズに抜去勾配３９に接触する。このため、回転子３の抜去作業を容易にすると共に、無理な抜去による部品へのダメージを抑止できる。 Further, in the assembly process of inserting the rotor 3 into the rotor space of the stator 2, in rare cases, the bearing 40 may be damaged by an impact or the like and an abnormal noise may be generated. Further, in the market as well, depending on the external environment, dust or dirt may enter the bearing 40 and generate an abnormal noise. In such a case, the rotor 3 is removed and the bearing 40 is replaced. At this time, by providing the extraction gradient 39 and providing the starting point of the extraction gradient 39 on the outer peripheral side of the inner peripheral curved surface 33 of the core 5, the end portion 28 in the rotation axis direction smoothly removes the extraction gradient 39 when the rotor 3 is removed. Contact. Therefore, the work of removing the rotor 3 can be facilitated, and damage to the parts due to forcible removal can be suppressed.
　なお、本実施の形態において、膨出部２７を円周均等に配置しているが、不均等でも構わず、回転子３を中心に誘導する目的から少なくとも三点備えればよい。 In the present embodiment, the bulging portions 27 are arranged evenly on the circumference, but it may be uneven, and at least three points may be provided for the purpose of guiding the rotor 3 to the center.
　また、膨出部２７の形状においても、回転子３の外周曲面３４を支持できる形状であれば良い。 Further, the shape of the bulging portion 27 may be any shape as long as it can support the outer peripheral curved surface 34 of the rotor 3.
　また、本実施の形態においては、１個の固定子部材１２に４個のインシュレータ組１９を接続しているが、複数であれば４個に限らない。ＡＣ電動機においては、巻線の特性上、一個の固定子部材１２に偶数個のインシュレータ組１９を備えることが好ましい。 Further, in the present embodiment, four insulator sets 19 are connected to one stator member 12, but the number is not limited to four if there are a plurality of insulator sets 19. In the AC motor, it is preferable to provide an even number of insulator sets 19 in one stator member 12 due to the characteristics of the winding.
　また、コア５とインシュレータ６と環状接続部１１と、つまりインシュレータ組１９は、一体成型されてもよい。コア５を鋳型に複数配置し、インシュレータ６および環状接続部１１を構成する樹脂を流し込むことにより、インシュレータ組１９を構成する。このように生成されたインシュレータ組１９は、その形状から、製造物として一体形成されたことが製品状態で確認可能となる。 Further, the core 5, the insulator 6, the annular connection portion 11, that is, the insulator set 19 may be integrally molded. A plurality of cores 5 are arranged in a mold, and the resin constituting the insulator 6 and the annular connection portion 11 is poured to form the insulator set 19. From the shape of the insulator set 19 thus generated, it can be confirmed in the product state that the insulator set 19 is integrally formed as a product.
　また、コア５は、固定子２の完成形状において、円環状に構成されるが、製造時点では直線状のものであってもよい。特に、直線状のコア５は、円環とした際にはひずみが生じやすく、本願による効果が大きい。 Further, the core 5 is formed in an annular shape in the completed shape of the stator 2, but may be linear at the time of manufacture. In particular, the linear core 5 tends to be distorted when it is formed into an annulus, and the effect of the present application is great.
　このようにして構成された固定子２は、電動機１に利用可能であり、さらに電動機１は送風装置に好適に利用可能である。 The stator 2 configured in this way can be used for the motor 1, and the motor 1 can be suitably used for the blower.
　本開示にかかる固定子は、電動機の製造効率を高めることができるものとして有用である。 The stator according to the present disclosure is useful as it can improve the manufacturing efficiency of the motor.
１　電動機
２　固定子
３　回転子
４　基板
５　コア
６　インシュレータ
７　巻線
８　継鉄部
９　歯部
１０　回転軸
１１、１１Ａ、１１Ｂ　環状接続部
１２、１２Ａ、１２Ｂ　固定子部材
１３　外周部
１４　内周部
１５　接続部
１６　貫通孔
１７　基部
１８　環状平面
１９　インシュレータ組
２０　基板固定部
２１　中心軸
２２、２３　幅
２４、２４Ａ、２４Ｂ　ガイド部
２５　接続辺
２６、２６Ａ、２６Ｂ　係合部
２７　膨出部
２８　回転軸方向端部
２９　挿入勾配
３０　軸中心
３１　先端部
３２　リブ
３３　内周曲面
３４　外周曲面
３５　ギャップ長
３６　最内周端部
３７　回転軸方向端部
３８　突出先端
３９　抜去勾配
４０　軸受け
４１　端部
１０１　鉄心
１１１　主巻線
１１１ａ　主巻線始端
１１１ｂ　主巻線終端
１１２　補巻線
１１２ａ　補巻線始端
１１２ｂ　補巻線終端
１１３　速調巻線 1 Motor 2 Stator 3 Rotor 4 Board 5 Core 6 Insulator 7 Winding 8 Joint iron part 9 Tooth part 10 Rotating shaft 11, 11A, 11B Circular connection part 12, 12A, 12B Stator member 13 Outer peripheral part 14 Inner peripheral part 15 Connection part 16 Through hole 17 Base part 18 Circular plane 19 Insulator set 20 Board fixing part 21 Central axis 22, 23 Width 24, 24A, 24B Guide part 25 Connection side 26, 26A, 26B Engagement part 27 Bulge part 28 Rotating shaft Directional end 29 Insertion slope 30 Axis center 31 Tip part 32 Rib 33 Inner peripheral curved surface 34 Outer peripheral curved surface 35 Gap length 36 Innermost peripheral end part 37 Rotating axial end part 38 Protruding tip 39 Extraction slope 40 Bearing 41 End part 101 Iron core 111 Main winding 111a Main winding start end 111b Main winding end 112 Auxiliary winding 112a Auxiliary winding start end 112b Auxiliary winding end 113 Speed adjustment winding

Claims (9)

  1. コアと、巻線と、前記コアおよび前記巻線の間を絶縁するインシュレータと、を備え、内周側に回転子を回転可能に挿入するための回転子空間を備えた固定子であって、
    前記インシュレータは、
    　前記巻線を接続する基板を固定する基板固定部を備え、
    前記基板固定部は、
    　前記コアの前記回転子に対向する内周曲面よりも内周側に膨出する膨出部を備えた、固定子。     A stator comprising a core, a winding, an insulator that insulates between the core and the winding, and a rotor space on the inner peripheral side for rotatably inserting the rotor.
    The insulator is
    A board fixing portion for fixing the board to which the winding is connected is provided.
    The board fixing portion is
    A stator having a bulging portion that bulges toward the inner peripheral side of the inner peripheral curved surface facing the rotor of the core.
  2. 前記膨出部は、前記回転子の回転軸方向端部よりも外側に位置する、請求項１に記載の固定子。 The stator according to claim 1, wherein the bulging portion is located outside the rotation axis direction end portion of the rotor.
  3. 前記膨出部の最内周は、前記回転子の前記コアに対向する外周曲面と同一円周上に位置する、または、前記同一円周上よりも内周まで膨出する、請求項１に記載の固定子。 According to claim 1, the innermost circumference of the bulging portion is located on the same circumference as the outer peripheral curved surface of the rotor facing the core, or bulges to the inner circumference from the same circumference. Described stator.
  4. 前記膨出部は、前記コアの前記内周曲面と前記回転子の前記外周曲面との距離であるギャップ長だけ、前記コアの前記内周曲面よりも内周に向けて膨出する、請求項１に記載の固定子。 The bulging portion is claimed to bulge toward the inner circumference from the inner peripheral curved surface of the core by a gap length which is a distance between the inner peripheral curved surface of the core and the outer peripheral curved surface of the rotor. The stator according to 1.
  5. 前記基板固定部は、少なくとも三個の基板固定部のうちの１つであり、
    前記少なくとも三個の基板固定部は、前記インシュレータの周方向に設けられる、請求項１に記載の固定子。     The board fixing portion is one of at least three board fixing portions.
    The stator according to claim 1, wherein the at least three substrate fixing portions are provided in the circumferential direction of the insulator.
  6. 前記膨出部は、回転軸方向の外側から前記回転子空間に向かうにつれて内周方向に向かう挿入勾配を有する、請求項１に記載の固定子。 The stator according to claim 1, wherein the bulging portion has an insertion gradient toward the inner peripheral direction toward the rotor space from the outside in the rotation axis direction.
  7. 前記膨出部は、回転軸方向の前記回転子空間側から前記回転軸方向の外側に向かうにつれて内周方向に向かう抜去勾配を有する、請求項１に記載の固定子。 The stator according to claim 1, wherein the bulging portion has a withdrawal gradient toward the inner peripheral direction from the rotor space side in the rotation axis direction toward the outside in the rotation axis direction.
  8. 前記抜去勾配は、前記回転軸方向の前記回転子空間側の端部が前記内周曲面よりも外周側に位置する、請求項７記載の固定子。 The stator according to claim 7, wherein the extraction gradient has an end portion on the rotor space side in the rotation axis direction located on the outer peripheral side of the inner peripheral curved surface.
  9. 請求項１から８のいずれかに記載の固定子を備えた、電動機。 An electric motor comprising the stator according to any one of claims 1 to 8.
PCT/JP2021/028271 2020-08-21 2021-07-30 Stator and electric motor provided with same WO2022038999A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022543346A JPWO2022038999A1 (en) 2020-08-21 2021-07-30
CN202180049032.9A CN115803995A (en) 2020-08-21 2021-07-30 Stator and motor having the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020139739 2020-08-21
JP2020-139739 2020-08-21

Publications (1)

Publication Number Publication Date
WO2022038999A1 true WO2022038999A1 (en) 2022-02-24

Family

ID=80322648

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/028271 WO2022038999A1 (en) 2020-08-21 2021-07-30 Stator and electric motor provided with same

Country Status (3)

Country Link
JP (1) JPWO2022038999A1 (en)
CN (1) CN115803995A (en)
WO (1) WO2022038999A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001078396A (en) * 1999-09-07 2001-03-23 Toshiba Corp Docking method of weight structure
JP2003079090A (en) * 2001-09-04 2003-03-14 Asmo Co Ltd Rotating device
JP2009278829A (en) * 2008-05-16 2009-11-26 Honda Motor Co Ltd Rotor assembly device and rotor assembly method
JP2010104211A (en) * 2008-10-27 2010-05-06 Mitsuba Corp Brushless motor
JP2014204624A (en) * 2013-04-09 2014-10-27 三菱電機株式会社 Stator core fixing structure of rotary electric machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001078396A (en) * 1999-09-07 2001-03-23 Toshiba Corp Docking method of weight structure
JP2003079090A (en) * 2001-09-04 2003-03-14 Asmo Co Ltd Rotating device
JP2009278829A (en) * 2008-05-16 2009-11-26 Honda Motor Co Ltd Rotor assembly device and rotor assembly method
JP2010104211A (en) * 2008-10-27 2010-05-06 Mitsuba Corp Brushless motor
JP2014204624A (en) * 2013-04-09 2014-10-27 三菱電機株式会社 Stator core fixing structure of rotary electric machine

Also Published As

Publication number Publication date
CN115803995A (en) 2023-03-14
JPWO2022038999A1 (en) 2022-02-24

Similar Documents

Publication Publication Date Title
JP4655764B2 (en) Rotating electric machine
JP4486678B2 (en) Rotating motor armature, rotating motor and manufacturing method thereof
US9806576B2 (en) Armature, armature manufacturing method, and rotating electrical device
JP4106375B2 (en) Rotating electric machine stator
JP6461381B2 (en) Rotating electric machine stator, rotating electric machine, and method of manufacturing rotating electric machine stator
US11594927B2 (en) Rotating electric machine and manufacturing method therefor
KR20030069765A (en) Abduction-type motor and fabrication method of motor stator thereof
JP7038894B2 (en) Method of manufacturing a stator of a rotary electric machine, a rotary electric machine, a stator of a rotary electric machine, and a method of manufacturing a rotary electric machine.
JP2018107989A (en) motor
JP5181627B2 (en) Rotating electric machine and method of manufacturing rotating electric machine
JP6924934B2 (en) Winding fixed structure and motor
JP6771590B2 (en) Axial gap type rotary electric machine
WO2022038999A1 (en) Stator and electric motor provided with same
JP2021168531A (en) Iron core and coil assembly and manufacturing method thereof, rotary electric machine using iron core and coil assembly and manufacturing method thereof
JP4113392B2 (en) Electric motor stator
JP7050239B2 (en) Stator, motor
EP3817200A1 (en) Stator used for motor and method for manufacturing said stator
JP2015107029A (en) Armature and rotary electric machine
JP2017195647A (en) Insulator, stator, rotary electric machine, and manufacturing method of stator
JP7019452B2 (en) Stator and rotary machine
JP5862869B2 (en) Molded motor
JP2020124057A (en) Rotary electric machine insulator
JP7044178B2 (en) Manufacturing method of stator of rotary electric machine and stator of rotary electric machine
WO2023058420A1 (en) Method for manufacturing dynamo-electric machine, and dynamo-electric machine
WO2021255838A1 (en) Electric motor stator and electric motor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21858147

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022543346

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21858147

Country of ref document: EP

Kind code of ref document: A1