WO2014024973A1 - Armature and rotating electrical machine using same - Google Patents

Armature and rotating electrical machine using same Download PDF

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Publication number
WO2014024973A1
WO2014024973A1 PCT/JP2013/071512 JP2013071512W WO2014024973A1 WO 2014024973 A1 WO2014024973 A1 WO 2014024973A1 JP 2013071512 W JP2013071512 W JP 2013071512W WO 2014024973 A1 WO2014024973 A1 WO 2014024973A1
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WO
WIPO (PCT)
Prior art keywords
bobbin
core
main body
teeth
insulating
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Application number
PCT/JP2013/071512
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French (fr)
Japanese (ja)
Inventor
永田　孝一
優一 水元
誠一 水谷
Original Assignee
株式会社デンソー
デンソートリム株式会社
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Application filed by 株式会社デンソー, デンソートリム株式会社 filed Critical 株式会社デンソー
Publication of WO2014024973A1 publication Critical patent/WO2014024973A1/en

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    • 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
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/522—Fastening salient pole windings or connections thereto applicable to stators only for generally annular cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
    • H02K2203/12—Machines characterised by the bobbins for supporting the windings

Definitions

  • the present invention relates to an armature and a rotating electric machine using the same.
  • an armature in which a core tooth is covered with an insulating portion of a bobbin to insulate a winding from a tooth.
  • a plurality of insulating portions of the bobbin are formed so as to extend radially outward from the annular bobbin main body.
  • Two bobbins are provided in total on one surface side and the other surface side in the axial direction of the core so as to sandwich the core so that each of the plurality of insulating portions corresponds to the plurality of teeth.
  • the insulating part of the bobbin is formed in a U-shaped cross section.
  • the bobbin is attached to the core so that the U-shaped opening of the insulating portion is fitted into the teeth.
  • the width of the U-shaped opening of the insulating portion is formed to be substantially the same as the width of the teeth from the end on the bobbin main body side to the end on the opposite side of the bobbin main body. Therefore, when the bobbin is attached to the core, it is necessary to strictly align the core and the bobbin while accurately matching the openings of the insulating portions with the plurality of teeth. Therefore, the work efficiency at the time of manufacture may decrease, and the manufacturing cost may increase.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide an armature in which a bobbin can be easily attached to a core, and a rotating electric machine using the armature.
  • the armature of the present invention includes a core, a bobbin, and a winding.
  • the core has an annular core body and a plurality of teeth extending radially outward from the core body.
  • the bobbin has an annular bobbin main body and a plurality of insulating portions provided on the radially outer side of the bobbin main body.
  • the bobbin is provided on one surface side and the other surface side in the axial direction of the core so as to sandwich the core so that the bobbin body corresponds to the core body and the insulating portion corresponds to the teeth. That is, a total of two bobbins are provided.
  • the winding is provided so as to be wound around the insulating portions of the two bobbins.
  • the insulating portion has a first cover portion, a second cover portion, and a deformed connection portion.
  • the first cover portion is formed in a plate shape so as to extend radially outward from the bobbin main body, and covers one side in the circumferential direction of the core main body of the teeth.
  • a 2nd cover part is formed in plate shape, and covers the other side of the circumferential direction of the core main body of teeth.
  • the deformation connecting portion connects the vicinity of the end portion of the first cover portion on the bobbin main body side and the end portion of the second cover portion on the bobbin main body side, or the vicinity of the end portion of the first cover portion opposite to the bobbin main body.
  • the end of the second cover portion opposite to the bobbin main body are connected to each other so as to be deformable.
  • the deformable connecting portion is formed to be deformable, for example, the end of the second cover portion opposite to the bobbin main body or the end on the bobbin main body side is the first cover.
  • the winding is wound. Before being turned, it can be opened, and when the winding is wound, the deformation connecting portion is deformed to be closed.
  • the core and the bobbin can be easily aligned with each other without causing the core and the bobbin to be aligned precisely. Can be attached to. Therefore, the work efficiency at the time of manufacture can be improved and the manufacturing cost can be reduced.
  • FIG. 4A is a view of FIG.
  • FIG. 4A is a view of FIG.
  • FIG. 4 is a diagram showing a state where a winding is wound around an insulating portion in a closed state.
  • FIG. 3 is a cross-sectional perspective view showing a state where a winding is wound around an insulating part in a closed state.
  • FIG. 6A is a view of FIG.
  • FIG. 6A is a view of FIG.
  • FIG. 4 is a diagram showing a state where a winding is wound around an insulating portion in a closed state.
  • Rotating electrical machine 1 is installed near the engine of a two-wheeled vehicle, for example, and generates electric power by being rotated by the rotational force of the engine. That is, in this embodiment, the rotary electric machine 1 is used as a generator for a motorcycle. The electric power generated by the rotating electrical machine 1 is stored in a battery (not shown) and supplied to various devices and devices mounted on the motorcycle such as a headlight.
  • the rotating electrical machine 1 includes an armature 10 and a rotating body 60.
  • the armature 10 includes a core 20, a bobbin 30, a winding 50, and the like.
  • the core 20 is formed in an annular shape by laminating metal plates such as iron or steel.
  • the core 20 has an annular core body 21 and a plurality of teeth 22 extending radially outward from the core body 21 (see FIG. 3). In the present embodiment, twelve teeth 22 are provided at equal intervals in the circumferential direction of the core body 21.
  • the bobbin 30 is formed in an annular shape with resin, for example.
  • the bobbin 30 has an annular bobbin main body 31 and a plurality of insulating portions 32 provided on the radially outer side of the bobbin main body 31. In the present embodiment, twelve insulating portions 32 are provided at equal intervals in the circumferential direction of the bobbin main body 31.
  • the bobbin 30 has one surface 23 side in the axial direction of the core 20 so as to sandwich the core 20 so that the bobbin main body 31 corresponds to the core main body 21 and each of the plurality of insulating portions 32 corresponds to each of the plurality of teeth 22. And provided on the other surface 24 side. That is, a total of two bobbins 30 are provided (see FIG. 2).
  • the insulating portion 32 includes a first cover portion 41, a second cover portion 42, and a deformed connection portion 43.
  • the first cover portion 41 is formed in a plate shape so as to extend radially outward from the bobbin main body 31, and covers one side in the circumferential direction of the core main body 21 of the teeth 22.
  • the 2nd cover part 42 is formed in plate shape, and covers the other side of the circumferential direction of the core main body 21 of the teeth 22.
  • the deformation connecting portion 43 is formed so as to be deformable by connecting the vicinity of the end portion 411 of the first cover portion 41 on the bobbin main body 31 side and the end portion 421 of the second cover portion 42 on the bobbin main body 31 side.
  • the end 412 of the first cover portion 41 opposite to the bobbin main body 31 and the end portion 422 of the second cover portion 42 opposite to the bobbin main body 31 are parallel to the axis of the bobbin main body 31.
  • a plate-like stopper 44 extending in the surface direction is formed.
  • a plate-like stopper 33 extending in a plane direction parallel to the axis of the bobbin main body 31 is formed in the vicinity of the insulating portion 32 of the bobbin main body 31.
  • the winding 50 is linearly formed of a metal such as copper or aluminum and is provided so as to be wound around the insulating portions 32 of the two bobbins 30.
  • one winding 50 is continuously wound around the plurality of insulating portions 32.
  • the insulating part 32 ensures the insulation between the winding 50 and the teeth 22 of the core 20.
  • the winding 50 is wound around the insulating portion 32 while being pulled with a predetermined force. As a result, the winding 50 can be tightly wound around the insulating portion 32.
  • collapse of the winding 50 is suppressed by the stopper 44 and the stopper 33 of the bobbin 30.
  • the core 20 has a core body 21 fixed to the inside of the engine cover 2 with, for example, bolts.
  • a flywheel 4 is attached to the end of the crankshaft 3 of the engine (not shown). Therefore, the flywheel 4 rotates together with the crankshaft 3 during engine operation.
  • the rotating body 60 of the rotating electrical machine 1 is attached to the flywheel 4.
  • Rotating body 60 has a main body 61, a magnet 62, and the like.
  • the main body 61 includes a tube portion 611 and a plate portion 612 that closes one end of the tube portion 611.
  • a plurality of magnets 62 are provided on the inner wall of the cylindrical portion 611. In the present embodiment, twelve magnets 62 are provided so that the magnetic poles are alternately arranged at equal intervals in the circumferential direction.
  • a protrusion 63 is formed on the outer wall of the cylindrical portion 611.
  • the plate portion 612 of the main body 61 is fixed to the flywheel 4 so that the cylindrical portion 611 is positioned on the radially outer side of the core 20.
  • the tip of the teeth 22 of the core 20 faces the magnet 62.
  • the rotating body 60 rotates together with the crankshaft 3 and the flywheel 4 during engine operation.
  • an induced electromotive force is generated in the winding 50 wound around the insulating portion 32 that covers the teeth 22 facing the magnet 62.
  • a current is generated in the winding 50.
  • the current generated in the winding 50 flows to the battery via the wire harness 5 that connects the winding 50 and the battery.
  • the electric power generated in the rotating electrical machine 1 is stored in the battery.
  • the rotary electric machine 1 of this embodiment is an outer rotor type generator.
  • a rotation sensor 70 is provided on the radially outer side of the cylindrical portion 611 of the rotating body 60.
  • the rotation sensor 70 outputs a signal corresponding to the rotation position of the protrusion 63 when the rotating body 60 rotates.
  • the signal is transmitted to an electronic control unit (hereinafter referred to as “ECU”) (not shown) via the wire harness 6.
  • ECU electronice control unit
  • the bobbin 30 when the bobbin 30 is attached to the core 20, the bobbin 30 is attached to the core 20 while the insulating part 32 is open and the insulating part 32 is made to correspond to the plurality of teeth 22.
  • the end portion 422 of the second cover portion 42 and the end portion 412 of the first cover portion 41 are separated from each other, the end portion 422 and the end portion 412 are prevented from interfering with the teeth 22 of the core 20. be able to. Therefore, the bobbin 30 can be easily attached to the core 20 while making the insulating portions 32 correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30.
  • a total of two bobbins 30 are attached to the one surface 23 side and the other surface 24 side in the axial direction of the core 20 so as to sandwich the core 20.
  • Winding winding process After the two bobbins 30 are attached to the core 20, the winding 50 is wound around the insulating portion 32 of the bobbin 30.
  • the end portion 422 of the insulating portion 32 opposite to the bobbin body 31 of the second cover portion 42 and the end portion of the first cover portion 41. 412 is brought into contact. This state is called “closed state”.
  • transformation connection part 43 is formed so that a deformation
  • the insulating part 32 is closed, and the winding 50 is wound around the insulating part 32 (see FIGS. 5C and 5D).
  • the teeth 22 of the core 20 are formed in a rectangular column shape so that a cross section of a virtual plane parallel to the axis Ax of the core body 21 is rectangular. Therefore, four corners are formed in the teeth 22.
  • the first cover portion 41 of the insulating portion 32 has a flat surface portion 81 that contacts one surface or the other surface in the axis Ax direction of the tooth 22, and one surface or the other surface in the circumferential direction of the core body 21 of the tooth 22.
  • angular part of the teeth 22 are formed so that the plane part 81 and the side part 82 may be connected.
  • the second cover portion 42 of the insulating portion 32 includes a flat portion 91 that contacts one surface or the other surface in the axis Ax direction of the tooth 22, and one surface or the other surface in the circumferential direction of the core body 21 of the tooth 22.
  • the first cover portion 41 and the second cover portion 42 are formed with substantially the same thickness.
  • winding 50 is wound by the direction of the arrow shown to FIG. 5D.
  • the deformation connection portion 43 of the insulating portion 32 is formed to be deformable, the insulating portion 32 is opened before the winding 50 is wound, and the winding 50 When the wire is wound, the deformation connecting portion 43 is deformed to be in a closed state. Therefore, before attaching the bobbin 30 to the core 20, the insulating part 32 is kept open so that the insulating part 32 is made to correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. In addition, the bobbin 30 can be easily attached to the core 20. Therefore, the work efficiency at the time of manufacture can be improved and the manufacturing cost can be reduced.
  • FIGS. 1 A part of the rotating electrical machine according to the second embodiment of the present invention is shown in FIGS.
  • the second embodiment differs from the first embodiment in the shape of the bobbin.
  • the deformation connecting portion 43 is opposite to the vicinity of the end 412 of the first cover portion 41 opposite to the bobbin main body 31 and the bobbin main body 31 of the second cover portion 42. It is formed so as to be deformable by connecting to the end 422 on the side.
  • the bobbin 30 when the bobbin 30 is attached to the core 20, the bobbin 30 is attached to the core 20 while making the insulating parts 32 correspond to the plurality of teeth 22 while the insulating part 32 is open. At this time, since the end portion 421 of the second cover portion 42 and the end portion 411 of the first cover portion 41 are separated from each other, the end portion 421 and the end portion 411 are prevented from interfering with the teeth 22 of the core 20. be able to. Therefore, the bobbin 30 can be easily attached to the core 20 while making the insulating portions 32 correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. A total of two bobbins 30 are attached to the one surface 23 side and the other surface 24 side in the axial direction of the core 20 so as to sandwich the core 20.
  • Winding winding process After the two bobbins 30 are attached to the core 20, the winding 50 is wound around the insulating portion 32 of the bobbin 30.
  • the end portion 421 of the second cover portion 42 of the insulating portion 32 on the bobbin main body 31 side and the end portion 411 of the first cover portion 41 are connected. Make contact. This state is called “closed state”.
  • transformation connection part 43 is formed so that a deformation
  • the insulating part 32 is closed and the winding 50 is wound around the insulating part 32 (see FIG. 7C).
  • the deformable connecting portion 43 of the insulating portion 32 is formed to be deformable, the insulating portion 32 is connected to the insulating portion 32 before the winding 50 is wound, as in the first embodiment. Can be in an open state, and when the winding 50 is wound, the deformation connecting portion 43 is deformed to be in a closed state. Therefore, before attaching the bobbin 30 to the core 20, the insulating part 32 is kept open so that the insulating part 32 is made to correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. In addition, the bobbin 30 can be easily attached to the core 20.
  • the side on which stress is concentrated when the winding 50 is wound around the insulating portion 32 (the first corner in the first embodiment).
  • the thickness of the portion 83 may be larger than the thickness of the side where stress is not concentrated (in the first embodiment, the second corner portion 93; see FIG. 5D). In this configuration, it is possible to improve the strength of the first corner portion 83 of the first cover portion 41 where stress is concentrated when the winding 50 is wound.
  • an example in which the teeth of the core are formed in a rectangular column shape so that a cross section by a virtual plane parallel to the axis of the core body is a rectangular shape.
  • the teeth may be formed in a columnar shape or a polygonal column shape so that a cross section by a virtual plane parallel to the axis of the core body is a circular shape or a polygonal shape.
  • the teeth are formed in a columnar shape, the first corner portion and the second corner portion are not formed in the first cover portion and the second cover portion of the insulating portion.
  • the rotating electrical machine of the present invention can be used not only as a generator for a motorcycle but also as a generator for a four-wheeled vehicle, other vehicles, or any device or apparatus that requires electric power. Moreover, when it is set as the structure which supplies electric power to a coil
  • the rotating body may be provided inside the armature.
  • the rotating electrical machine can be used as an inner rotor type generator or motor.
  • the rotating electrical machine may be configured to fix the rotating body and rotate the armature relative to the rotating body.

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

Abstract

A core (20) has an annular core main body (21) and a plurality of teeth (22). A bobbin (30) has an annular bobbin main body (31) and a plurality of insulating sections (32), provided in one surface (23) side in the axial direction of the core (20) and in the other surface (24) side thereof, so as to sandwich the core (20). A winding (50) is provided so as to be wound around the insulating sections (32) of the bobbin (30). A first cover section (41) for the insulating sections (32) is formed in a plate shape so as to extend from the bobbin main body (31) to the outside in the radial direction, and covers one side, in the circumferential direction, of the core main body (21) of the teeth (22). A second cover section (42) for the insulating sections (32) is formed in a plate shape and covers the other side, in the circumferential direction, of the core main body (21) of the teeth (22). A deformation connection section (43) for the insulating sections (32) connects the vicinity of an end section (411) of the bobbin main body (31) side of the first cover section (41) and an end section (421) on the bobbin main body (31) side of the second cover section (42), and is formed so as to be deformable.

Description

電機子、および、これを用いた回転電機Armature and rotating electric machine using the same
　本発明は、電機子、および、これを用いた回転電機に関する。 The present invention relates to an armature and a rotating electric machine using the same.
　従来、コアのティースをボビンの絶縁部で覆うことにより、巻線とティースとの絶縁を図った電機子が知られている。特許文献１に記載された電機子では、ボビンの絶縁部は、環状のボビン本体から径方向外側へ延びるよう複数形成されている。ボビンは、複数の絶縁部それぞれが複数のティースに対応するよう、コアを挟み込むようにしてコアの軸方向の一方の面側および他方の面側に合計２つ設けられている。 Conventionally, an armature is known in which a core tooth is covered with an insulating portion of a bobbin to insulate a winding from a tooth. In the armature described in Patent Document 1, a plurality of insulating portions of the bobbin are formed so as to extend radially outward from the annular bobbin main body. Two bobbins are provided in total on one surface side and the other surface side in the axial direction of the core so as to sandwich the core so that each of the plurality of insulating portions corresponds to the plurality of teeth.
特開２０００－３２６９４号公報JP 2000-32694 A
　特許文献１の電機子では、ボビンの絶縁部は、断面コ字状に形成されている。そして、製造時、絶縁部のコ字状の開口部をティースに嵌め込むようにしてコアにボビンを取り付けている。ここで、絶縁部のコ字状の開口部の幅は、ボビン本体側の端部からボビン本体とは反対側の端部にかけて、ティースの幅と略同じになるよう形成されている。そのため、コアにボビンを取り付けるとき、複数のティースに絶縁部の開口部を精度良く対応させながらコアとボビンとの位置合わせを厳密に行う必要がある。よって、製造時の作業効率が低下し、製造コストが増大するおそれがある。 In the armature of Patent Document 1, the insulating part of the bobbin is formed in a U-shaped cross section. At the time of manufacture, the bobbin is attached to the core so that the U-shaped opening of the insulating portion is fitted into the teeth. Here, the width of the U-shaped opening of the insulating portion is formed to be substantially the same as the width of the teeth from the end on the bobbin main body side to the end on the opposite side of the bobbin main body. Therefore, when the bobbin is attached to the core, it is necessary to strictly align the core and the bobbin while accurately matching the openings of the insulating portions with the plurality of teeth. Therefore, the work efficiency at the time of manufacture may decrease, and the manufacturing cost may increase.
　本発明は、上述の問題に鑑みてなされたものであり、その目的は、コアにボビンを容易に取り付け可能な電機子、および、これを用いた回転電機を提供することにある。 The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an armature in which a bobbin can be easily attached to a core, and a rotating electric machine using the armature.
　本発明の電機子は、コアとボビンと巻線とを備える。コアは、環状のコア本体、および、当該コア本体から径方向外側へ延びる複数のティースを有している。ボビンは、環状のボビン本体、および、当該ボビン本体の径方向外側に設けられる複数の絶縁部を有している。ボビンは、ボビン本体がコア本体に対応し絶縁部がティースに対応するようコアを挟み込むようにしてコアの軸方向の一方の面側および他方の面側に設けられている。すなわち、ボビンは、合計２つ設けられている。巻線は、２つのボビンの絶縁部に巻回されるようにして設けられている。 The armature of the present invention includes a core, a bobbin, and a winding. The core has an annular core body and a plurality of teeth extending radially outward from the core body. The bobbin has an annular bobbin main body and a plurality of insulating portions provided on the radially outer side of the bobbin main body. The bobbin is provided on one surface side and the other surface side in the axial direction of the core so as to sandwich the core so that the bobbin body corresponds to the core body and the insulating portion corresponds to the teeth. That is, a total of two bobbins are provided. The winding is provided so as to be wound around the insulating portions of the two bobbins.
　上記本発明の電機子では、絶縁部は、第１カバー部、第２カバー部および変形接続部を有している。第１カバー部は、ボビン本体から径方向外側に延びるよう板状に形成され、ティースのコア本体の周方向の一方側を覆う。第２カバー部は、板状に形成され、ティースのコア本体の周方向の他方側を覆う。変形接続部は、第１カバー部のボビン本体側の端部近傍と第２カバー部のボビン本体側の端部とを接続、または、第１カバー部のボビン本体とは反対側の端部近傍と第２カバー部のボビン本体とは反対側の端部とを接続し変形可能に形成されている。 In the above-described armature of the present invention, the insulating portion has a first cover portion, a second cover portion, and a deformed connection portion. The first cover portion is formed in a plate shape so as to extend radially outward from the bobbin main body, and covers one side in the circumferential direction of the core main body of the teeth. A 2nd cover part is formed in plate shape, and covers the other side of the circumferential direction of the core main body of teeth. The deformation connecting portion connects the vicinity of the end portion of the first cover portion on the bobbin main body side and the end portion of the second cover portion on the bobbin main body side, or the vicinity of the end portion of the first cover portion opposite to the bobbin main body. And the end of the second cover portion opposite to the bobbin main body are connected to each other so as to be deformable.
　上述のように、本発明の電機子では変形接続部が変形可能に形成されているため、例えば第２カバー部のボビン本体とは反対側の端部またはボビン本体側の端部が第１カバー部から離間した状態を開状態、第２カバー部のボビン本体とは反対側の端部またはボビン本体側の端部が第１カバー部に当接した状態を閉状態とすると、巻線が巻回される前は開状態、巻線が巻回されるとき変形接続部が変形することで閉状態とすることができる。そのため、例えばコアにボビンを取り付ける前、絶縁部を開状態にしておくことにより、コアとボビンとの位置合わせを厳密に行うことなく、複数のティースに絶縁部を対応させつつコアにボビンを容易に取り付けることができる。したがって、製造時の作業効率が向上し、製造コストを低減することができる。 As described above, in the armature of the present invention, since the deformable connecting portion is formed to be deformable, for example, the end of the second cover portion opposite to the bobbin main body or the end on the bobbin main body side is the first cover. When the state separated from the part is in the open state, and the end of the second cover part opposite to the bobbin body or the end of the bobbin body in contact with the first cover part is closed, the winding is wound. Before being turned, it can be opened, and when the winding is wound, the deformation connecting portion is deformed to be closed. For this reason, for example, by setting the insulating portion in an open state before attaching the bobbin to the core, the core and the bobbin can be easily aligned with each other without causing the core and the bobbin to be aligned precisely. Can be attached to. Therefore, the work efficiency at the time of manufacture can be improved and the manufacturing cost can be reduced.
本発明の第１実施形態による電機子および回転電機を示す図。The figure which shows the armature and rotary electric machine by 1st Embodiment of this invention. 本発明の第１実施形態による電機子および回転電機を示す断面図。Sectional drawing which shows the armature and rotary electric machine by 1st Embodiment of this invention. 本発明の第１実施形態による電機子のコアを示す図。The figure which shows the core of the armature by 1st Embodiment of this invention. は本発明の第１実施形態による電機子のボビンを示す断面図。These are sectional drawings which show the bobbin of the armature by 1st Embodiment of this invention. は図４Ａを矢印Ｂ方向から見た図。FIG. 4A is a view of FIG. は図４Ａを矢印Ｃ方向から見た図。FIG. 4A is a view of FIG. は本発明の第１実施形態による電機子のボビンをコアに取り付けた状態を示す図。These are figures which show the state which attached the bobbin of the armature by 1st Embodiment of this invention to the core. は閉状態の絶縁部を示す図。FIG. 4 is a diagram showing an insulating part in a closed state. は閉状態の絶縁部に巻線を巻回する様子を示す図。FIG. 4 is a diagram showing a state where a winding is wound around an insulating portion in a closed state. は閉状態の絶縁部に巻線を巻回する様子を示す断面斜視図。FIG. 3 is a cross-sectional perspective view showing a state where a winding is wound around an insulating part in a closed state. は本発明の第２実施形態による電機子のボビンを示す断面図。These are sectional drawings which show the bobbin of the armature by 2nd Embodiment of this invention. は図６Ａを矢印Ｂ方向から見た図。FIG. 6A is a view of FIG. は図６Ａを矢印Ｃ方向から見た図。FIG. 6A is a view of FIG. は本発明の第２実施形態による電機子のボビンをコアに取り付けた状態を示す図。These are the figures which show the state which attached the bobbin of the armature by 2nd Embodiment of this invention to the core. は閉状態の絶縁部を示す図。FIG. 4 is a diagram showing an insulating part in a closed state. は閉状態の絶縁部に巻線を巻回する様子を示す図。FIG. 4 is a diagram showing a state where a winding is wound around an insulating portion in a closed state.
　以下、本発明の複数の実施形態による電機子、および、これを用いた回転電機を図面に基づき説明する。なお、複数の実施形態において実質的に同一の構成部位には同一の符号を付し、説明を省略する。
　　（第１実施形態）
　本発明の第１実施形態による回転電機を図１および２に示す。 Hereinafter, an armature according to a plurality of embodiments of the present invention and a rotating electric machine using the armature will be described with reference to the drawings. Note that, in a plurality of embodiments, substantially the same components are denoted by the same reference numerals, and description thereof is omitted.
(First embodiment)
1 and 2 show a rotating electrical machine according to a first embodiment of the present invention.
　回転電機１は、例えば二輪車のエンジン近傍に取り付けられ、エンジンの回転力により回転されることで発電する。すなわち、本実施形態では、回転電機１は、二輪車用の発電機として用いられる。回転電機１が発電した電力は、図示しないバッテリに蓄えられ、ヘッドライト等、二輪車に搭載される種々の機器および装置へ供給される。 Rotating electrical machine 1 is installed near the engine of a two-wheeled vehicle, for example, and generates electric power by being rotated by the rotational force of the engine. That is, in this embodiment, the rotary electric machine 1 is used as a generator for a motorcycle. The electric power generated by the rotating electrical machine 1 is stored in a battery (not shown) and supplied to various devices and devices mounted on the motorcycle such as a headlight.
　回転電機１は、電機子１０および回転体６０等を備えている。電機子１０は、コア２０、ボビン３０および巻線５０等を備えている。コア２０は、例えば鉄あるいはスチール等の金属板を積層することにより環状に形成されている。コア２０は、環状のコア本体２１、および、コア本体２１から径方向外側へ延びる複数のティース２２を有している（図３参照）。本実施形態では、ティース２２は、コア本体２１の周方向に等間隔で１２個設けられている。 The rotating electrical machine 1 includes an armature 10 and a rotating body 60. The armature 10 includes a core 20, a bobbin 30, a winding 50, and the like. The core 20 is formed in an annular shape by laminating metal plates such as iron or steel. The core 20 has an annular core body 21 and a plurality of teeth 22 extending radially outward from the core body 21 (see FIG. 3). In the present embodiment, twelve teeth 22 are provided at equal intervals in the circumferential direction of the core body 21.
　ボビン３０は、例えば樹脂により環状に形成されている。ボビン３０は、環状のボビン本体３１、および、ボビン本体３１の径方向外側に複数設けられる絶縁部３２を有している。本実施形態では、絶縁部３２は、ボビン本体３１の周方向に等間隔で１２個設けられている。 The bobbin 30 is formed in an annular shape with resin, for example. The bobbin 30 has an annular bobbin main body 31 and a plurality of insulating portions 32 provided on the radially outer side of the bobbin main body 31. In the present embodiment, twelve insulating portions 32 are provided at equal intervals in the circumferential direction of the bobbin main body 31.
　ボビン３０は、ボビン本体３１がコア本体２１に対応し、複数の絶縁部３２それぞれが複数のティース２２それぞれに対応するよう、コア２０を挟み込むようにしてコア２０の軸方向の一方の面２３側および他方の面２４側に設けられている。すなわち、ボビン３０は、合計２つ設けられている（図２参照）。 The bobbin 30 has one surface 23 side in the axial direction of the core 20 so as to sandwich the core 20 so that the bobbin main body 31 corresponds to the core main body 21 and each of the plurality of insulating portions 32 corresponds to each of the plurality of teeth 22. And provided on the other surface 24 side. That is, a total of two bobbins 30 are provided (see FIG. 2).
　図１および４に示すように、絶縁部３２は、第１カバー部４１、第２カバー部４２および変形接続部４３を有している。第１カバー部４１は、ボビン本体３１から径方向外側に延びるよう板状に形成され、ティース２２のコア本体２１の周方向の一方側を覆う。第２カバー部４２は、板状に形成され、ティース２２のコア本体２１の周方向の他方側を覆う。変形接続部４３は、第１カバー部４１のボビン本体３１側の端部４１１近傍と第２カバー部４２のボビン本体３１側の端部４２１とを接続し変形可能に形成されている。 As shown in FIGS. 1 and 4, the insulating portion 32 includes a first cover portion 41, a second cover portion 42, and a deformed connection portion 43. The first cover portion 41 is formed in a plate shape so as to extend radially outward from the bobbin main body 31, and covers one side in the circumferential direction of the core main body 21 of the teeth 22. The 2nd cover part 42 is formed in plate shape, and covers the other side of the circumferential direction of the core main body 21 of the teeth 22. FIG. The deformation connecting portion 43 is formed so as to be deformable by connecting the vicinity of the end portion 411 of the first cover portion 41 on the bobbin main body 31 side and the end portion 421 of the second cover portion 42 on the bobbin main body 31 side.
　第１カバー部４１のボビン本体３１とは反対側の端部４１２、および、第２カバー部４２のボビン本体３１とは反対側の端部４２２のそれぞれには、ボビン本体３１の軸に平行な面方向に延びる板状のストッパ４４が形成されている。ボビン本体３１の絶縁部３２近傍には、ボビン本体３１の軸に平行な面方向に延びる板状のストッパ３３が形成されている。 The end 412 of the first cover portion 41 opposite to the bobbin main body 31 and the end portion 422 of the second cover portion 42 opposite to the bobbin main body 31 are parallel to the axis of the bobbin main body 31. A plate-like stopper 44 extending in the surface direction is formed. A plate-like stopper 33 extending in a plane direction parallel to the axis of the bobbin main body 31 is formed in the vicinity of the insulating portion 32 of the bobbin main body 31.
　巻線５０は、例えば銅またはアルミ等の金属により線状に形成され、２つのボビン３０の絶縁部３２に巻回されるようにして設けられている。本実施形態では、１本の巻線５０が複数の絶縁部３２に連続して巻回されている。絶縁部３２により、巻線５０とコア２０のティース２２との絶縁性が確保されている。また、本実施形態では、巻線５０を、所定の力で引っ張りながら絶縁部３２に巻回する。これにより、巻線５０を絶縁部３２に密に巻回すことができる。ここで、ボビン３０のストッパ４４およびストッパ３３により、巻線５０の巻崩れが抑制されている。 The winding 50 is linearly formed of a metal such as copper or aluminum and is provided so as to be wound around the insulating portions 32 of the two bobbins 30. In the present embodiment, one winding 50 is continuously wound around the plurality of insulating portions 32. The insulating part 32 ensures the insulation between the winding 50 and the teeth 22 of the core 20. In the present embodiment, the winding 50 is wound around the insulating portion 32 while being pulled with a predetermined force. As a result, the winding 50 can be tightly wound around the insulating portion 32. Here, collapse of the winding 50 is suppressed by the stopper 44 and the stopper 33 of the bobbin 30.
　図２に示すように、コア２０は、コア本体２１が例えばボルト等によりエンジンカバー２の内側に固定されている。図示しないエンジンのクランクシャフト３の端部にはフライホイール４が取り付けられている。そのため、フライホイール４は、エンジン運転時、クランクシャフト３とともに回転する。回転電機１の回転体６０は、フライホイール４に取り付けられている。 As shown in FIG. 2, the core 20 has a core body 21 fixed to the inside of the engine cover 2 with, for example, bolts. A flywheel 4 is attached to the end of the crankshaft 3 of the engine (not shown). Therefore, the flywheel 4 rotates together with the crankshaft 3 during engine operation. The rotating body 60 of the rotating electrical machine 1 is attached to the flywheel 4.
　回転体６０は、本体６１およびマグネット６２等を有している。本体６１は、筒部６１１、および、筒部６１１の一方の端部を塞ぐ板部６１２を有している。筒部６１１の内壁には、複数のマグネット６２が設けられている。本実施形態では、マグネット６２は、周方向に等間隔で、磁極が交互になるよう１２個設けられている。筒部６１１の外壁には、突部６３が形成されている。 Rotating body 60 has a main body 61, a magnet 62, and the like. The main body 61 includes a tube portion 611 and a plate portion 612 that closes one end of the tube portion 611. A plurality of magnets 62 are provided on the inner wall of the cylindrical portion 611. In the present embodiment, twelve magnets 62 are provided so that the magnetic poles are alternately arranged at equal intervals in the circumferential direction. A protrusion 63 is formed on the outer wall of the cylindrical portion 611.
　回転体６０は、筒部６１１がコア２０の径方向外側に位置するよう、本体６１の板部６１２がフライホイール４に固定される。これにより、コア２０のティース２２の先端部は、マグネット６２に対向することとなる。回転体６０は、エンジン運転時、クランクシャフト３およびフライホイール４とともに回転する。回転体６０が回転すると、マグネット６２に対向するティース２２を覆う絶縁部３２に巻回された巻線５０に誘導起電力が生じる。その結果、巻線５０に電流が生じる。巻線５０に生じた電流は、巻線５０とバッテリとを接続するワイヤーハーネス５を経由してバッテリに流れる。これにより、回転電機１で生じた電力がバッテリに蓄えられる。このように、本実施形態の回転電機１はアウタロータ型の発電機である。 In the rotating body 60, the plate portion 612 of the main body 61 is fixed to the flywheel 4 so that the cylindrical portion 611 is positioned on the radially outer side of the core 20. As a result, the tip of the teeth 22 of the core 20 faces the magnet 62. The rotating body 60 rotates together with the crankshaft 3 and the flywheel 4 during engine operation. When the rotating body 60 rotates, an induced electromotive force is generated in the winding 50 wound around the insulating portion 32 that covers the teeth 22 facing the magnet 62. As a result, a current is generated in the winding 50. The current generated in the winding 50 flows to the battery via the wire harness 5 that connects the winding 50 and the battery. Thereby, the electric power generated in the rotating electrical machine 1 is stored in the battery. Thus, the rotary electric machine 1 of this embodiment is an outer rotor type generator.
　回転体６０の筒部６１１の径方向外側には回転センサ７０が設けられている。回転センサ７０は、回転体６０が回転するとき、突部６３の回転位置に応じた信号を出力する。当該信号は、ワイヤーハーネス６を経由して、図示しない電子制御ユニット（以下、「ＥＣＵ」という）に伝達される。これにより、ＥＣＵは、回転体６０の回転位置、すなわち、クランクシャフト３の回転位置を検出することができる。 A rotation sensor 70 is provided on the radially outer side of the cylindrical portion 611 of the rotating body 60. The rotation sensor 70 outputs a signal corresponding to the rotation position of the protrusion 63 when the rotating body 60 rotates. The signal is transmitted to an electronic control unit (hereinafter referred to as “ECU”) (not shown) via the wire harness 6. Thereby, the ECU can detect the rotational position of the rotating body 60, that is, the rotational position of the crankshaft 3.
　次に、本実施形態の回転電機１の電機子１０の製造時における、ボビン３０のコア２０への取り付け、および、巻線５０の絶縁部３２への巻回しについて説明する。
（ボビン取り付け工程）
図４に示すように、ボビン３０は、コア２０に取り付ける前、絶縁部３２の第２カバー部４２のボビン本体３１とは反対側の端部４２２が、第１カバー部４１の端部４１２から離間した状態である。この状態を「開状態」とよぶ。 Next, attachment of the bobbin 30 to the core 20 and winding of the winding 50 around the insulating portion 32 at the time of manufacturing the armature 10 of the rotating electrical machine 1 of the present embodiment will be described.
(Bobbin installation process)
As shown in FIG. 4, before the bobbin 30 is attached to the core 20, the end portion 422 of the second cover portion 42 of the insulating portion 32 opposite to the bobbin main body 31 extends from the end portion 412 of the first cover portion 41. It is in a separated state. This state is called “open state”.
　図５Ａに示すように、コア２０にボビン３０を取り付けるとき、絶縁部３２が開状態のまま、複数のティース２２に絶縁部３２を対応させつつコア２０にボビン３０を取り付ける。このとき、第２カバー部４２の端部４２２と第１カバー部４１の端部４１２とは離間しているため、端部４２２および端部４１２がコア２０のティース２２に干渉するのを抑制することができる。よって、コア２０とボビン３０との位置合わせを厳密に行うことなく、複数のティース２２に絶縁部３２を対応させつつコア２０にボビン３０を容易に取り付けることができる。なお、ボビン３０は、コア２０を挟み込むようにしてコア２０の軸方向の一方の面２３側および他方の面２４側に合計２つ取り付ける。 As shown in FIG. 5A, when the bobbin 30 is attached to the core 20, the bobbin 30 is attached to the core 20 while the insulating part 32 is open and the insulating part 32 is made to correspond to the plurality of teeth 22. At this time, since the end portion 422 of the second cover portion 42 and the end portion 412 of the first cover portion 41 are separated from each other, the end portion 422 and the end portion 412 are prevented from interfering with the teeth 22 of the core 20. be able to. Therefore, the bobbin 30 can be easily attached to the core 20 while making the insulating portions 32 correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. A total of two bobbins 30 are attached to the one surface 23 side and the other surface 24 side in the axial direction of the core 20 so as to sandwich the core 20.
　（巻線巻回し工程）
　２つのボビン３０をコア２０に取り付けた後、巻線５０をボビン３０の絶縁部３２に巻回する。巻線５０を絶縁部３２に巻回すとき、図５Ｂに示すように、絶縁部３２の第２カバー部４２のボビン本体３１とは反対側の端部４２２と、第１カバー部４１の端部４１２とを当接させた状態にする。この状態を「閉状態」とよぶ。本実施形態では、変形接続部４３が変形可能に形成されているため、絶縁部３２を開状態から閉状態にすることが可能である。絶縁部３２を閉状態とし、巻線５０を絶縁部３２に巻回する（図５Ｃ、図５Ｄ参照）。 (Winding winding process)
After the two bobbins 30 are attached to the core 20, the winding 50 is wound around the insulating portion 32 of the bobbin 30. When winding the winding 50 around the insulating portion 32, as shown in FIG. 5B, the end portion 422 of the insulating portion 32 opposite to the bobbin body 31 of the second cover portion 42 and the end portion of the first cover portion 41. 412 is brought into contact. This state is called “closed state”. In this embodiment, since the deformation | transformation connection part 43 is formed so that a deformation | transformation is possible, it is possible to make the insulation part 32 into a closed state from an open state. The insulating part 32 is closed, and the winding 50 is wound around the insulating part 32 (see FIGS. 5C and 5D).
　以上が、回転電機１の電機子１０の製造時における、ボビン３０のコア２０への取り付け工程、および、巻線５０の絶縁部３２への巻回し工程である。なお、本実施形態では、図５Ｄに示すように、コア２０のティース２２は、コア本体２１の軸Ａｘに平行な仮想平面による断面が矩形状となるよう矩形柱状に形成されている。よって、ティース２２には、４つの角部が形成されている。 The above is the process of attaching the bobbin 30 to the core 20 and the process of winding the winding 50 around the insulating portion 32 when the armature 10 of the rotating electrical machine 1 is manufactured. In the present embodiment, as shown in FIG. 5D, the teeth 22 of the core 20 are formed in a rectangular column shape so that a cross section of a virtual plane parallel to the axis Ax of the core body 21 is rectangular. Therefore, four corners are formed in the teeth 22.
　絶縁部３２の第１カバー部４１は、ティース２２の軸Ａｘ方向の一方の面または他方の面に当接する平面部８１、ティース２２のコア本体２１の周方向の一方の面または他方の面に当接する側面部８２、および、ティース２２の角部に対応し平面部８１と側面部８２とを接続するよう形成される第１角部８３を有している。また、絶縁部３２の第２カバー部４２は、ティース２２の軸Ａｘ方向の一方の面または他方の面に当接する平面部９１、ティース２２のコア本体２１の周方向の一方の面または他方の面に当接する側面部９２、および、ティース２２の角部に対応し平面部８１と側面部８２とを接続するよう形成される第２角部９３を有している。なお、本実施形態では、第１カバー部４１と第２カバー部４２とは、板厚が略同じに形成されている。また、巻線５０は、図５Ｄに示す矢印の方向に巻回される。 The first cover portion 41 of the insulating portion 32 has a flat surface portion 81 that contacts one surface or the other surface in the axis Ax direction of the tooth 22, and one surface or the other surface in the circumferential direction of the core body 21 of the tooth 22. The side part 82 which contacts, and the 1st corner | angular part 83 corresponding to the corner | angular part of the teeth 22 are formed so that the plane part 81 and the side part 82 may be connected. Further, the second cover portion 42 of the insulating portion 32 includes a flat portion 91 that contacts one surface or the other surface in the axis Ax direction of the tooth 22, and one surface or the other surface in the circumferential direction of the core body 21 of the tooth 22. It has the side part 92 contact | abutted to a surface, and the 2nd corner | angular part 93 formed so that the plane part 81 and the side part 82 may be connected corresponding to the corner | angular part of the teeth 22. FIG. In the present embodiment, the first cover portion 41 and the second cover portion 42 are formed with substantially the same thickness. Moreover, the coil | winding 50 is wound by the direction of the arrow shown to FIG. 5D.
　以上説明したように、本実施形態では、絶縁部３２の変形接続部４３が変形可能に形成されているため、絶縁部３２を、巻線５０が巻回される前は開状態、巻線５０が巻回されるとき変形接続部４３が変形することで閉状態とすることができる。そのため、コア２０にボビン３０を取り付ける前、絶縁部３２を開状態にしておくことにより、コア２０とボビン３０との位置合わせを厳密に行うことなく、複数のティース２２に絶縁部３２を対応させつつコア２０にボビン３０を容易に取り付けることができる。したがって、製造時の作業効率が向上し、製造コストを低減することができる。 As described above, in the present embodiment, since the deformation connection portion 43 of the insulating portion 32 is formed to be deformable, the insulating portion 32 is opened before the winding 50 is wound, and the winding 50 When the wire is wound, the deformation connecting portion 43 is deformed to be in a closed state. Therefore, before attaching the bobbin 30 to the core 20, the insulating part 32 is kept open so that the insulating part 32 is made to correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. In addition, the bobbin 30 can be easily attached to the core 20. Therefore, the work efficiency at the time of manufacture can be improved and the manufacturing cost can be reduced.
　　（第２実施形態）
　本発明の第２実施形態による回転電機の一部を図６および７に示す。第２実施形態は、ボビンの形状が第１実施形態と異なる。 (Second Embodiment)
A part of the rotating electrical machine according to the second embodiment of the present invention is shown in FIGS. The second embodiment differs from the first embodiment in the shape of the bobbin.
　図６に示すように、第２実施形態では、変形接続部４３は、第１カバー部４１のボビン本体３１とは反対側の端部４１２近傍と第２カバー部４２のボビン本体３１とは反対側の端部４２２とを接続し変形可能に形成されている。 As shown in FIG. 6, in the second embodiment, the deformation connecting portion 43 is opposite to the vicinity of the end 412 of the first cover portion 41 opposite to the bobbin main body 31 and the bobbin main body 31 of the second cover portion 42. It is formed so as to be deformable by connecting to the end 422 on the side.
　次に、本実施形態の回転電機の電機子１０の製造時における、ボビン３０のコア２０への取り付け、および、巻線５０の絶縁部３２への巻回しについて説明する。
　（ボビン取り付け工程）
　図６に示すように、ボビン３０は、コア２０に取り付ける前、絶縁部３２の第２カバー部４２のボビン本体３１側の端部４２１が、第１カバー部４１の端部４１１から離間した状態である。この状態を「開状態」とよぶ。 Next, attachment of the bobbin 30 to the core 20 and winding of the winding 50 around the insulating portion 32 at the time of manufacturing the armature 10 of the rotating electrical machine of the present embodiment will be described.
(Bobbin installation process)
As shown in FIG. 6, before the bobbin 30 is attached to the core 20, the end portion 421 on the bobbin main body 31 side of the second cover portion 42 of the insulating portion 32 is separated from the end portion 411 of the first cover portion 41. It is. This state is called “open state”.
　図７Ａに示すように、コア２０にボビン３０を取り付けるとき、絶縁部３２が開状態のまま、複数のティース２２に絶縁部３２を対応させつつコア２０にボビン３０を取り付ける。このとき、第２カバー部４２の端部４２１と第１カバー部４１の端部４１１とは離間しているため、端部４２１および端部４１１がコア２０のティース２２に干渉するのを抑制することができる。よって、コア２０とボビン３０との位置合わせを厳密に行うことなく、複数のティース２２に絶縁部３２を対応させつつコア２０にボビン３０を容易に取り付けることができる。なお、ボビン３０は、コア２０を挟み込むようにしてコア２０の軸方向の一方の面２３側および他方の面２４側に合計２つ取り付ける。 As shown in FIG. 7A, when the bobbin 30 is attached to the core 20, the bobbin 30 is attached to the core 20 while making the insulating parts 32 correspond to the plurality of teeth 22 while the insulating part 32 is open. At this time, since the end portion 421 of the second cover portion 42 and the end portion 411 of the first cover portion 41 are separated from each other, the end portion 421 and the end portion 411 are prevented from interfering with the teeth 22 of the core 20. be able to. Therefore, the bobbin 30 can be easily attached to the core 20 while making the insulating portions 32 correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. A total of two bobbins 30 are attached to the one surface 23 side and the other surface 24 side in the axial direction of the core 20 so as to sandwich the core 20.
　（巻線巻回し工程）
　２つのボビン３０をコア２０に取り付けた後、巻線５０をボビン３０の絶縁部３２に巻回する。巻線５０を絶縁部３２に巻回すとき、図７Ｂに示すように、絶縁部３２の第２カバー部４２のボビン本体３１側の端部４２１と、第１カバー部４１の端部４１１とを当接させた状態にする。この状態を「閉状態」とよぶ。本実施形態では、変形接続部４３が変形可能に形成されているため、絶縁部３２を開状態から閉状態にすることが可能である。絶縁部３２を閉状態とし、巻線５０を絶縁部３２に巻回する（図７Ｃ参照）。 (Winding winding process)
After the two bobbins 30 are attached to the core 20, the winding 50 is wound around the insulating portion 32 of the bobbin 30. When winding the winding 50 around the insulating portion 32, as shown in FIG. 7B, the end portion 421 of the second cover portion 42 of the insulating portion 32 on the bobbin main body 31 side and the end portion 411 of the first cover portion 41 are connected. Make contact. This state is called “closed state”. In this embodiment, since the deformation | transformation connection part 43 is formed so that a deformation | transformation is possible, it is possible to make the insulation part 32 into a closed state from an open state. The insulating part 32 is closed and the winding 50 is wound around the insulating part 32 (see FIG. 7C).
　以上説明したように、本実施形態では、絶縁部３２の変形接続部４３が変形可能に形成されているため、第１実施形態と同様、絶縁部３２を、巻線５０が巻回される前は開状態、巻線５０が巻回されるとき変形接続部４３が変形することで閉状態とすることができる。そのため、コア２０にボビン３０を取り付ける前、絶縁部３２を開状態にしておくことにより、コア２０とボビン３０との位置合わせを厳密に行うことなく、複数のティース２２に絶縁部３２を対応させつつコア２０にボビン３０を容易に取り付けることができる。 As described above, in the present embodiment, since the deformable connecting portion 43 of the insulating portion 32 is formed to be deformable, the insulating portion 32 is connected to the insulating portion 32 before the winding 50 is wound, as in the first embodiment. Can be in an open state, and when the winding 50 is wound, the deformation connecting portion 43 is deformed to be in a closed state. Therefore, before attaching the bobbin 30 to the core 20, the insulating part 32 is kept open so that the insulating part 32 is made to correspond to the plurality of teeth 22 without strictly aligning the core 20 and the bobbin 30. In addition, the bobbin 30 can be easily attached to the core 20.
　　（他の実施形態）
　上述の実施形態では、第１カバー部と第２カバー部との板厚が略同じに形成される例を示した。これに対し、本発明の他の実施形態では、第２カバー部４２の平面部９１、側面部９２および第２角部９３のうち少なくとも１つが、第１カバー部４１の板厚より小さく形成されていてもよい（図５Ｄ参照）。この構成では、第２カバー部４２の材料コストを低減することができる。よって、ボビン本体３１と一体に形成される第１カバー部４１の強度を保ち、絶縁部３２の絶縁性を確保しつつ、ボビン３０の材料コストを低減することができる。 (Other embodiments)
In the above-described embodiment, an example in which the plate thickness of the first cover portion and the second cover portion is formed to be substantially the same has been described. On the other hand, in another embodiment of the present invention, at least one of the flat surface portion 91, the side surface portion 92, and the second corner portion 93 of the second cover portion 42 is formed smaller than the plate thickness of the first cover portion 41. (See FIG. 5D). In this configuration, the material cost of the second cover portion 42 can be reduced. Therefore, the material cost of the bobbin 30 can be reduced while maintaining the strength of the first cover portion 41 formed integrally with the bobbin main body 31 and ensuring the insulation of the insulating portion 32.
　また、本発明の他の実施形態では、第１角部８３および第２角部９３のうち、巻線５０を絶縁部３２に巻回すとき応力が集中する側（第１実施形態では第１角部８３。図５Ｄ参照）の板厚を、応力が集中しない側（第１実施形態では第２角部９３。図５Ｄ参照）の板厚より大きく形成してもよい。この構成では、巻線５０を巻回すときに応力が集中する第１カバー部４１の第１角部８３の強度を向上することができる。また、上述の実施形態では、コアのティースが、コア本体の軸に平行な仮想平面による断面が矩形状となるよう矩形柱状に形成される例を示した。これに対し、本発明の他の実施形態では、ティースは、コア本体の軸に平行な仮想平面による断面が円形状または多角形状となるよう円柱状または多角柱状に形成されていてもよい。ここで、ティースが円柱状に形成される場合、絶縁部の第１カバー部および第２カバー部には第１角部および第２角部は形成されない。 Further, in another embodiment of the present invention, of the first corner portion 83 and the second corner portion 93, the side on which stress is concentrated when the winding 50 is wound around the insulating portion 32 (the first corner in the first embodiment). The thickness of the portion 83 (see FIG. 5D) may be larger than the thickness of the side where stress is not concentrated (in the first embodiment, the second corner portion 93; see FIG. 5D). In this configuration, it is possible to improve the strength of the first corner portion 83 of the first cover portion 41 where stress is concentrated when the winding 50 is wound. Moreover, in the above-described embodiment, an example in which the teeth of the core are formed in a rectangular column shape so that a cross section by a virtual plane parallel to the axis of the core body is a rectangular shape. On the other hand, in another embodiment of the present invention, the teeth may be formed in a columnar shape or a polygonal column shape so that a cross section by a virtual plane parallel to the axis of the core body is a circular shape or a polygonal shape. Here, when the teeth are formed in a columnar shape, the first corner portion and the second corner portion are not formed in the first cover portion and the second cover portion of the insulating portion.
　本発明の回転電機は、二輪車用の発電機に限らず、４輪自動車用、その他乗り物用、あるいは、電力を必要とするあらゆる機器、装置類用の発電機として用いることができる。また、巻線に電力を供給する構成とした場合、回転電機をモータとして利用することができる。また、本発明の他の実施形態では、コアのティースおよびボビンの絶縁部の数は、１２個に限らず、いくつであってもよい。 The rotating electrical machine of the present invention can be used not only as a generator for a motorcycle but also as a generator for a four-wheeled vehicle, other vehicles, or any device or apparatus that requires electric power. Moreover, when it is set as the structure which supplies electric power to a coil | winding, a rotary electric machine can be utilized as a motor. In another embodiment of the present invention, the number of core teeth and bobbin insulating portions is not limited to 12 and may be any number.
　また、本発明の他の実施形態では、回転体を電機子の内側に設けることとしてもよい。この場合、回転電機を、インナロータ型の発電機またはモータとして利用することができる。また、本発明の他の実施形態では、回転体を固定し、電機子を回転体に対し相対回転させるよう回転電機を構成してもよい。このように、本発明は、上述の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の形態に適用可能である。 In another embodiment of the present invention, the rotating body may be provided inside the armature. In this case, the rotating electrical machine can be used as an inner rotor type generator or motor. In another embodiment of the present invention, the rotating electrical machine may be configured to fix the rotating body and rotate the armature relative to the rotating body. Thus, the present invention is not limited to the above-described embodiments, and can be applied to various forms without departing from the gist thereof.
１　・・・・電機子
２０　・・・コア
２１　・・・コア本体
２２　・・・ティース
２３　・・・一方の面
２４　・・・他方の面
３０　・・・ボビン
３１　・・・ボビン本体
３２　・・・絶縁部
４１　・・・第１カバー部
４２　・・・第２カバー部
４１１、４１２、４２１、４２２　・・・端部
４３　・・・変形接続部
５０　・・・巻線 DESCRIPTION OF SYMBOLS 1 ... Armature 20 ... Core 21 ... Core main body 22 ... Teeth 23 ... One side 24 ... Other side 30 ... Bobbin 31 ... Bobbin main body 32 .... Insulating part 41 ... 1st cover part 42 ... 2nd cover part 411, 412, 421, 422 ... End part 43 ... Deformation connection part 50 ... Winding

Claims (5)

  1. 　環状のコア本体（２１）、および、当該コア本体から径方向外側へ延びる複数のティース（２２）を有するコア（２０）と、
    　環状のボビン本体（３１）、および、当該ボビン本体の径方向外側に設けられる複数の絶縁部（３２）を有し、前記ボビン本体が前記コア本体に対応し前記絶縁部が前記ティースに対応するよう前記コアを挟み込むようにして前記コアの軸方向の一方の面（２３）側および他方の面（２４）側に設けられるボビン（３０）と、
    　前記ボビンの前記絶縁部に巻回される巻線（５０）と、を備え、
    　前記絶縁部は、
    　前記ボビン本体から径方向外側に延びるよう板状に形成され、前記ティースの前記コア本体の周方向の一方側を覆う第１カバー部（４１）、
    　板状に形成され、前記ティースの前記コア本体の周方向の他方側を覆う第２カバー部（４２）、および、
    　前記第１カバー部の前記ボビン本体側の端部（４１１）近傍と前記第２カバー部の前記
    ボビン本体側の端部（４２１）とを接続、または、前記第１カバー部の前記ボビン本体と
    は反対側の端部（４１２）近傍と前記第２カバー部の前記ボビン本体とは反対側の端部（４２２）とを接続し変形可能に形成される変形接続部（４３）を有する電機子（１０）。     A core (20) having an annular core body (21) and a plurality of teeth (22) extending radially outward from the core body;
    An annular bobbin main body (31) and a plurality of insulating portions (32) provided on the radially outer side of the bobbin main body, the bobbin main body corresponding to the core main body, and the insulating portion corresponding to the teeth. A bobbin (30) provided on one surface (23) side and the other surface (24) side in the axial direction of the core so as to sandwich the core,
    A winding (50) wound around the insulating part of the bobbin,
    The insulating part is
    A first cover portion (41) formed in a plate shape extending radially outward from the bobbin main body and covering one side of the teeth in the circumferential direction of the core main body;
    A second cover portion (42) formed in a plate shape and covering the other side of the teeth in the circumferential direction of the core body; and
    The vicinity of the end (411) of the first cover part on the bobbin main body side and the end part (421) of the second cover part on the bobbin main body side are connected, or the bobbin main body of the first cover part Is an armature having a deformable connection portion (43) formed so as to be deformable by connecting the vicinity of the opposite end portion (412) and the end portion (422) of the second cover portion opposite to the bobbin main body. (10).
  2. 　前記絶縁部は、前記第２カバー部の前記ボビン本体とは反対側の端部（４２２）または前記ボビン本体側の端部（４２１）が前記第１カバー部から離間した状態を開状態、前記第２カバー部の前記ボビン本体とは反対側の端部（４２２）または前記ボビン本体側の端部（４２１）が前記第１カバー部に当接した状態を閉状態とすると、前記巻線が巻回される前は開状態、前記巻線が巻回されるとき前記変形接続部が変形することで閉状態となる請求項１に記載の電機子。 The insulating portion is in an open state in which the end portion (422) of the second cover portion opposite to the bobbin body or the end portion (421) of the bobbin body side is separated from the first cover portion, When the end portion (422) of the second cover portion opposite to the bobbin body or the end portion (421) of the bobbin body side is in contact with the first cover portion, the winding is 2. The armature according to claim 1, wherein the armature is in an open state before being wound, and is in a closed state by the deformation connecting portion being deformed when the winding is wound.
  3. 　前記第２カバー部は、少なくとも一部の板厚が前記第１カバー部の板厚より小さく形成されている請求項１または２に記載の電機子。 The armature according to claim 1 or 2, wherein at least a part of the second cover portion is formed to have a thickness smaller than that of the first cover portion.
  4. 　前記ティースは、前記コア本体の軸に平行な仮想平面による断面が矩形状となるよう矩形柱状に形成され、
    　前記第１カバー部は、前記ティースの角部に対応するよう形成される第１角部（８３）を有し、
    　前記第２カバー部は、前記ティースの角部に対応するよう形成される第２角部（９３）を有し、
    　前記第１角部または前記第２角部の一方は、板厚が他方より大きく形成されている請求項１または２に記載の電機子。     The teeth are formed in a rectangular column shape so that a cross section by a virtual plane parallel to the axis of the core body is rectangular,
    The first cover portion has a first corner portion (83) formed to correspond to the corner portion of the teeth,
    The second cover portion has a second corner portion (93) formed to correspond to the corner portion of the teeth,
    3. The armature according to claim 1, wherein one of the first corner and the second corner is formed to have a plate thickness larger than the other. 4.
  5. 　請求項１～４のいずれか一項に記載の電機子と、
    　前記コアに対し相対回転可能となるよう前記コアの外側または内側に設けられる回転体（６０）と、
    　を備える回転電機（１）。     The armature according to any one of claims 1 to 4,
    A rotating body (60) provided outside or inside the core so as to be rotatable relative to the core;
    A rotating electrical machine (1).
PCT/JP2013/071512 2012-08-08 2013-08-08 Armature and rotating electrical machine using same WO2014024973A1 (en)

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Publication Number Publication Date
WO2014024973A1 true WO2014024973A1 (en) 2014-02-13

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