JP7352785B2

JP7352785B2 - Electric motor

Info

Publication number: JP7352785B2
Application number: JP2021561327A
Authority: JP
Inventors: 康仁塩谷
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2019-11-29
Filing date: 2020-11-17
Publication date: 2023-09-29
Anticipated expiration: 2040-11-17
Also published as: WO2021106675A1; CN114270668A; JPWO2021106675A1

Description

本発明は、電動機に関するものである。 The present invention relates to an electric motor.

従来、巻線組と巻線組から引き出される引出線とで構成されるステータと、ステータを格納するハウジングと、ハウジングに設けられた引出線挿通穴と、挿通穴と引出線のクリアランスを埋める引出線固定具で構成されるモータが知られている。 Conventionally, a stator consists of a winding set and a leader wire pulled out from the winding set, a housing that stores the stator, a leader wire insertion hole provided in the housing, and a drawer that fills the clearance between the insertion hole and the leader wire. Motors constructed with wire fixtures are known.

以下にその構成につて図１２を参照しながら説明する。 The configuration will be explained below with reference to FIG.

図１２に示すようにステータ１１１は、鉄心１１２と巻線１１３と前記巻線から引き出された引出線１１４と、前記引出線に挿通された引出線固定具１１５と、端末に取り付けられた中継コネクタ１１６により構成されている。 As shown in FIG. 12, the stator 111 includes an iron core 112, a winding 113, a leader wire 114 drawn out from the winding, a leader wire fixture 115 inserted into the leader wire, and a relay connector attached to the terminal. 116.

ハウジング１１７は、引出線固定具１１５が係合する引出線固定具挿通穴１１８を有している。 The housing 117 has a leader wire fixture insertion hole 118 into which the leader wire fixture 115 engages.

ステータ１１１をハウジング１１７へ格納する際、中継コネクタ１１６を含む引出線１１４を引出線固定具挿通穴１１８へ挿通すると共に、引出線固定具１１５を引出線固定具挿通穴１１８へ係合させることで、ハウジング内部の密閉性を高め、塵埃や水分に対しての耐力向上が期待できるとしている。 When storing the stator 111 in the housing 117, the leader wire 114 including the relay connector 116 is inserted into the leader wire fixture insertion hole 118, and the leader wire fixture 115 is engaged with the leader wire fixture insertion hole 118. The company says that it is expected to improve the sealing inside the housing and improve its resistance to dust and moisture.

実開昭６３－９３７５２号公報Utility Model Publication No. 63-93752

このような従来の引出線固定具とハウジングに挿通穴を設けた構成では、引出線先端にコネクタなどの中継部品を装着する際、挿通穴より大きな中継部品の場合においては、先に引出線を挿通させた後に、中継部品を装着する必要があった。 In such a conventional configuration in which a through hole is provided in the leader wire fixing device and the housing, when attaching a relay component such as a connector to the end of the leader wire, if the relay component is larger than the insertion hole, the leader wire must be attached first. After inserting it, it was necessary to attach the relay parts.

また、本構成においては引出線に挿通した引出線固定具の引出線上の位置は、一義に決めることが困難で、ハウジング側も挿通穴である構成のため、作業員による組立が必須となっており、その作業性が課題であった。 In addition, in this configuration, it is difficult to unambiguously determine the position of the leader wire fixing device inserted into the leader wire, and since the housing side is also configured with an insertion hole, assembly by a worker is required. However, its workability was an issue.

よって、本発明は、ステータをハウジングに格納する際、引出線先端の仕様を問わず、塵埃や水分に対しての耐力を維持しつつ、組立の自動化が期待できる電動機を提供することを目的とする。 Therefore, an object of the present invention is to provide an electric motor that can be expected to be assembled automatically while maintaining resistance to dust and moisture when storing the stator in the housing, regardless of the specifications of the lead wire tip. do.

そして、この目的を達成するために、本発明の電動機は、ステータと、前記ステータの軸方向における一端側に配置される基板と、前記基板から引き出される引出線と、前記一端側から前記ステータを内部空間に保持する有底円筒形のハウジングと、前記ハウジングの側面に天面開口から底面に向けて設けられた切欠き部と、前記引出線を保持して前記切欠き部に固定する引出線固定具と、を備え、前記ステータは、環形状に形成された鉄心と、前記鉄心に巻回された巻線と、前記鉄心と前記巻線との間を絶縁するインシュレータと、を備え、前記インシュレータは、外周方向に突出して前記引出線固定具と係合する固定具係合部を備え、前記引出線固定具は、前記固定具係合部に固定され、前記固定具係合部は、前記インシュレータから外周方向に突出する基部と、前記基部の突出方向先端において環形状における接線方向に突出し前記引出線固定具の外周方向への移動を制限する止め部と、を備える。これにより所期の目的を達成するものである。 In order to achieve this object, the electric motor of the present invention includes a stator, a board disposed at one end of the stator in the axial direction, a lead wire drawn out from the board, and a lead wire extending from the one end to the stator. A cylindrical housing with a bottom that is held in an internal space, a notch provided in a side surface of the housing from the top opening toward the bottom, and a leader line that is held and fixed to the notch. a fixture, the stator includes an annular core, a winding wound around the core, and an insulator for insulating between the core and the winding, The insulator includes a fixture engaging portion that protrudes in an outer circumferential direction and engages with the leader wire fixture, the leader wire fixture is fixed to the fixture engaging portion, and the fixture engaging portion includes: A base protruding from the insulator in the outer circumferential direction, and a stop part protruding in a tangential direction of the annular shape at the protruding direction tip of the base and restricting movement of the leader wire fixture in the outer circumferential direction. This achieves the intended purpose.

本発明によれば、ステータをハウジングで格納する際、引出線先端の仕様を問わず、塵埃や水分に対しての耐力を維持しつつ、組立の自動化が期待できる。 According to the present invention, when storing the stator in the housing, automation of assembly can be expected while maintaining resistance to dust and moisture regardless of the specifications of the lead wire tip.

図１は、本発明の実施の形態１に係る電動機の分解斜視図である。FIG. 1 is an exploded perspective view of an electric motor according to Embodiment 1 of the present invention. 図２は、本発明の実施の形態１に係るステータの平面図である。FIG. 2 is a plan view of the stator according to Embodiment 1 of the present invention. 図３は、本発明の実施の形態１に係るインシュレータの部分斜視図である。FIG. 3 is a partial perspective view of the insulator according to Embodiment 1 of the present invention. 図４は、本発明の実施の形態１に係るインシュレータと基板の上面図である。FIG. 4 is a top view of an insulator and a substrate according to Embodiment 1 of the present invention. 図５は、本発明の実施の形態１に係る引出線固定具の斜視図である。FIG. 5 is a perspective view of the leader line fixture according to Embodiment 1 of the present invention. 図６は、本発明の実施の形態１に係る引出線固定具の側断面図である。FIG. 6 is a side sectional view of the leader wire fixture according to Embodiment 1 of the present invention. 図７は、本発明の実施の形態１に係る引出線固定具の下面図である。FIG. 7 is a bottom view of the leader wire fixture according to Embodiment 1 of the present invention. 図８は、本発明の実施の形態１に係る基板組と引出線固定具の係合状態における斜視図である。FIG. 8 is a perspective view of the board assembly and the leader wire fixture in an engaged state according to the first embodiment of the present invention. 図９は、本発明の実施の形態１に係る基板と引出線固定具の分解斜視図である。FIG. 9 is an exploded perspective view of the board and the leader wire fixture according to Embodiment 1 of the present invention. 図１０は、本発明の実施の形態１に係る電動機の分解斜視図である。FIG. 10 is an exploded perspective view of the electric motor according to Embodiment 1 of the present invention. 図１１は、本発明の実施の形態２に係る引出線固定具の側断面図である。FIG. 11 is a side sectional view of a leader wire fixture according to Embodiment 2 of the present invention. 図１２は、従来の巻線の状態を簡略化して示す図である。FIG. 12 is a diagram showing a simplified state of a conventional winding wire.

以下、本発明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、本発明を具体化した一例であって、本発明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している。さらに、各図面において、本発明に直接には関係しない各部の詳細については説明を簡略化または省略している。 Embodiments of the present invention will be described below with reference to the drawings. Note that the following embodiments are examples of embodying the present invention, and do not limit the technical scope of the present invention. In addition, throughout all the drawings, the same parts are given the same reference numerals and their explanations are omitted from the second time onwards. Further, in each drawing, detailed explanations of parts not directly related to the present invention are simplified or omitted.

（実施の形態１）
本発明の第１の実施の形態について、図面を参照しながら説明する。(Embodiment 1)
A first embodiment of the present invention will be described with reference to the drawings.

まず、図１を参照して本実施の形態に係る電動機６について説明する。なお、図１は便宜上、回転子を除いた電動機６の分解斜視図である。電動機６は、ステータ１、ハウジング１６ａ、１６ｂ、及び図示しない回転子から構成される。 First, an electric motor 6 according to the present embodiment will be explained with reference to FIG. Note that, for convenience, FIG. 1 is an exploded perspective view of the electric motor 6 excluding the rotor. The electric motor 6 includes a stator 1, housings 16a and 16b, and a rotor (not shown).

ステータ１は、中空円筒形状を有し、中空空間に回転子を備える。ステータ１は、通電により回転子を回転させることで、回転子に設けられハウジング１６ｂから外部に突出した回転軸を回転駆動させ、これにより電動機として機能する。なお、ステータ１の詳細構造については後述する。 The stator 1 has a hollow cylindrical shape and includes a rotor in the hollow space. The stator 1 rotates the rotor by applying electricity to rotate a rotating shaft provided on the rotor and protruding outside from the housing 16b, thereby functioning as an electric motor. Note that the detailed structure of the stator 1 will be described later.

ハウジング１６ａは、ステータ１に備える鉄心２の外径とほぼ同径の内周径を有する。ハウジング１６ａは、ステータ１を内部空間に保持する有底円筒形であって、ハウジングの側面に、天面開口から底面に向けて設けられ、天面開口側に開口するＵ字形状の切欠き部１７を備え、後述する引出線固定具１２（図２参照）と係合する。 The housing 16a has an inner circumferential diameter that is approximately the same as the outer diameter of the iron core 2 provided in the stator 1. The housing 16a has a cylindrical shape with a bottom that holds the stator 1 in the internal space, and has a U-shaped notch provided on the side surface of the housing from the top opening toward the bottom and opening toward the top opening. 17, and engages with a leader wire fixture 12 (see FIG. 2), which will be described later.

ハウジング１６ｂは、鉄心２の外径とほぼ同径の内周径を有し、ステータ１を内部空間に保持する有底円筒形であって、同心円を以てステータ１及びハウジング１６ａと嵌合する。ハウジング１６ｂは、切欠き部１７を備えず、底面中央部に回転軸が貫通する貫通孔を備える点でハウジング１６ａと異なるが、これら以外はハウジング１６ａとほぼ同一形状を有する。ただし、貫通孔をハウジング１６ａ側に備えてもよい。 The housing 16b has an inner circumferential diameter that is approximately the same as the outer diameter of the iron core 2, and has a bottomed cylindrical shape that holds the stator 1 in the internal space, and is fitted into the stator 1 and the housing 16a concentrically. The housing 16b differs from the housing 16a in that it does not include a notch 17 and has a through hole in the center of the bottom surface through which the rotating shaft passes, but has substantially the same shape as the housing 16a other than these. However, the through hole may be provided on the housing 16a side.

ハウジング１６ａ、ハウジング１６ｂともに、天面開口から外周に向かって延設されたフランジ３４を備える。 Both the housing 16a and the housing 16b include a flange 34 extending from the top opening toward the outer periphery.

フランジ３４は、ハウジング１６ａについては切欠き部１７を除いた全周にわたって設けられる。またフランジ３４は、ハウジング１６ｂについては全周にわたって設けられる。フランジ３４は、ハウジング１６ａとハウジング１６ｂとで共通する貫通孔４１を備え、貫通孔４１同士を一致させることで閉じたハウジングを形成する。 The flange 34 is provided over the entire circumference of the housing 16a except for the notch 17. Further, the flange 34 is provided over the entire circumference of the housing 16b. The flange 34 includes a through hole 41 common to the housing 16a and the housing 16b, and a closed housing is formed by aligning the through holes 41 with each other.

続いて、図２を参照してステータ１の構成について説明する。なお、図２はステータ１の平面図である。 Next, the configuration of the stator 1 will be explained with reference to FIG. 2. Note that FIG. 2 is a plan view of the stator 1.

ステータ１は、ステータコアすなわち鉄心２と、インシュレータ３と、巻線４と、端末接続部５と、基板組８とを備える。 The stator 1 includes a stator core, that is, an iron core 2, an insulator 3, a winding 4, a terminal connection portion 5, and a board set 8.

鉄心２は、継鉄部７と継鉄部７から内周側に突出する歯部（図示なし）とが一体に形成され、一体ないし複数の分割鉄心により環形状を形成している。 The iron core 2 is integrally formed with a yoke part 7 and a tooth part (not shown) protruding inward from the yoke part 7, and is formed into an annular shape by one piece or a plurality of split iron cores.

インシュレータ３は、鉄心２を覆う構成であって、巻線４の銅やアルミニウムの合金を主な素材とする導電線を、インシュレータ３を介して複数の歯部に対して巻回することで、鉄心２と巻線４の電気的絶縁を図る役割を果たす。インシュレータ３は、鉄心２と同様に、分割鉄心に対応させた環形状を有する。インシュレータ３は、引出線固定具１２が備える括れ係合部４０が係合するＴ字状の外周へ突出した固定具係合部１３と、基板位置決め用の突起部１４（突起部１４ａ、突起部１４ｂ）（図３参照）とを備えるが、詳細は後述する。 The insulator 3 has a structure that covers the iron core 2, and by winding the conductive wire of the winding 4, which is mainly made of an alloy of copper or aluminum, around a plurality of teeth through the insulator 3, It plays the role of electrically insulating the iron core 2 and the winding 4. Like the iron core 2, the insulator 3 has an annular shape corresponding to the divided iron core. The insulator 3 includes a fixture engaging portion 13 that protrudes toward the T-shaped outer periphery that is engaged with the constricted engaging portion 40 of the leader wire fixture 12, and a protruding portion 14 for board positioning (a protruding portion 14a, a protruding portion 14b) (see FIG. 3), details of which will be described later.

巻線４は、インシュレータ３を備えた鉄心２に巻回される導電線であり、要求される仕様に応じ巻回仕様が異なる。 The winding 4 is a conductive wire wound around the iron core 2 provided with the insulator 3, and the winding specifications differ depending on the required specifications.

端末接続部５は、インシュレータ３に立設され、回転軸と平行に設けられた導電可能なピンである。端末接続部５は、鉄心２に巻回された巻線４の端部が接続され、さらに基板９の電気的接点と接続されることで巻線４と引出線１０とが導通する。 The terminal connection portion 5 is a conductive pin that is erected on the insulator 3 and parallel to the rotation axis. The terminal connection portion 5 is connected to the end of the winding 4 wound around the iron core 2, and is further connected to an electrical contact point of the substrate 9, so that the winding 4 and the lead wire 10 are electrically connected.

基板組８は、基板９と、基板９に接続された引出線１０と、引出線１０を挿通された引出線固定具１２とを有しているが、詳細は後述する。 The board set 8 includes a board 9, a leader wire 10 connected to the board 9, and a leader wire fixture 12 into which the leader wire 10 is inserted, details of which will be described later.

基板９は、複数の電気的接点を接続することで、外部の例えばインバータ回路等と巻線４とを接続する。基板９は、中心角を約１６０度とした中空円形の一部分をその輪郭とする形状、すなわち部分ドーナツ形状を有する。基板９は、鉄心２の中心軸１９と同心であって、中心軸１９に垂直な平面上に、中心軸１９から鉄心２の方向に所定の距離を離した位置に配置される。基板９は、インシュレータ３の天面側端部、つまり天面における外周部に載置されて固定され、基板９の天面、すなわち鉄心２とは逆側の面に引出線１０が接続される。基板９は、インシュレータ３に係止するための、図４に示す切欠き１５ａ、切欠き１５ｂを備えるが詳細は後述する。 The substrate 9 connects the winding 4 to an external device such as an inverter circuit by connecting a plurality of electrical contacts. The substrate 9 has a shape whose outline is a part of a hollow circle with a central angle of about 160 degrees, that is, a partial donut shape. The substrate 9 is arranged on a plane that is concentric with the central axis 19 of the iron core 2 and perpendicular to the central axis 19, and is spaced a predetermined distance from the central axis 19 in the direction of the iron core 2. The board 9 is placed and fixed on the end of the top surface of the insulator 3, that is, on the outer periphery of the top surface, and the leader wire 10 is connected to the top surface of the board 9, that is, the surface on the opposite side to the iron core 2. . The substrate 9 includes a notch 15a and a notch 15b shown in FIG. 4 for engaging the insulator 3, the details of which will be described later.

引出線１０は、導電線が絶縁被覆にて覆われた複数の電線で構成されており、入力電力を基板９に供給するため、基板設計に応じて引出線１０の末端が基板９の電気的接点と接続される。引出線１０は、モータの仕様に応じ本数や径が異なり、引出線１０を構成し導電線や絶縁被膜を保護する保護チューブ１１も同様に要求仕様に応じ適宜選定される。 The leader wire 10 is composed of a plurality of conductive wires covered with an insulating coating, and in order to supply input power to the board 9, the end of the leader wire 10 is connected to the electrical wire of the board 9 depending on the board design. Connected to contacts. The number and diameter of the leader wires 10 vary depending on the specifications of the motor, and the protective tube 11 that constitutes the leader wire 10 and protects the conductive wires and the insulation coating is also appropriately selected according to the required specifications.

図５に斜視図、図６に側断面図で示すように、引出線固定具１２は、ラップ部３３と、内周部３１と、外周部２９と、接続部３０と、挿通孔２７と、括れ係合部４０と、溝とを有する。ラップ部３３は、鉄心２の外周と面する。内周部３１は、ハウジング１６の内周面に位置する。外周部２９は、ハウジング１６の外周面に位置する。接続部３０は、内周部３１と外周部２９を接続する。挿通孔２７は、引出線１０と保護チューブ１１が挿通される。括れ係合部４０は、インシュレータ３が備える固定具係合部１３と係合する。溝は、後述する内周部３１と外周部２９を接続する接続部３０により形成され、ハウジング１６ａが備える切欠き部１７と係合する。詳細については後述する。 As shown in a perspective view in FIG. 5 and in a side sectional view in FIG. It has a constricted engagement portion 40 and a groove. The wrap portion 33 faces the outer periphery of the iron core 2 . The inner circumferential portion 31 is located on the inner circumferential surface of the housing 16. The outer peripheral portion 29 is located on the outer peripheral surface of the housing 16. The connecting portion 30 connects the inner circumferential portion 31 and the outer circumferential portion 29 . The leader wire 10 and the protective tube 11 are inserted through the insertion hole 27 . The constricted engagement portion 40 engages with the fixture engagement portion 13 provided on the insulator 3 . The groove is formed by a connecting portion 30 that connects an inner circumferential portion 31 and an outer circumferential portion 29, which will be described later, and engages with a notch portion 17 provided in the housing 16a. Details will be described later.

続いて、図３を参照してインシュレータ３の詳細について説明する。なお、図３はインシュレータ３の部分斜視図である。 Next, details of the insulator 3 will be explained with reference to FIG. 3. Note that FIG. 3 is a partial perspective view of the insulator 3.

インシュレータ３は、インシュレータ３の軸方向における端部近傍であって、中心軸１９に垂直な平面、つまりインシュレータ３の天面（あるいは底面）に固定具係合部１３を備える。なお、インシュレータ３の天面、及び底面は、中空のドーナツ形状を有しており、ドーナツ形状における外周側端部に、天面からさらに軸方向に突出する外径側膨出部端面２４を、内周側端部に天面からさらに軸方向に突出する内径側膨出部端面２５を備える。 The insulator 3 includes a fixture engaging portion 13 near the end in the axial direction of the insulator 3 on a plane perpendicular to the central axis 19, that is, on the top surface (or bottom surface) of the insulator 3. The top and bottom surfaces of the insulator 3 have a hollow donut shape, and an outer diameter side bulge end surface 24 that further protrudes from the top surface in the axial direction is provided at the outer peripheral end of the donut shape. The inner circumferential end portion is provided with an inner diameter side bulging portion end face 25 that further projects in the axial direction from the top surface.

固定具係合部１３は、インシュレータ３の環形状における最外周であるインシュレータ外径２０を起点にさらに外周側、つまり継鉄部７方向に膨出する。固定具係合部１３は、天面視においてＴ字形状を有し、Ｔ字形状における頭部が止め部２１として固定具係合部１３の外周側に位置し、Ｔ字形状における足部が基部２２としてインシュレータ外径２０に接続され、インシュレータ３から外周側に突出する。止め部２１は、基部２２の外周側端部にて、鉄心２の環状における接線方向両側に突出する。止め部２１の突出により、止め部２１と基部２２とが固定具係合部１３における括れを形成する。なお、基部２２は、接線方向の幅が引出線１０の径よりも小さく構成することが好ましい。固定具係合部１３は、インシュレータ３の軸方向に強度十分な厚みを有すると共に、引出線１０と接触する配線平面２３を備える。 The fixture engaging portion 13 bulges further toward the outer circumference, that is, toward the yoke portion 7, starting from the insulator outer diameter 20, which is the outermost circumference of the annular shape of the insulator 3. The fixture engaging portion 13 has a T-shape when viewed from the top, the head portion of the T-shape is located on the outer circumferential side of the fixture engaging portion 13 as the stop portion 21, and the foot portion of the T-shape is located on the outer circumferential side of the fixture engaging portion 13. The base portion 22 is connected to the insulator outer diameter 20 and protrudes from the insulator 3 toward the outer circumference. The stop portion 21 protrudes on both sides in the tangential direction of the annular shape of the iron core 2 at the outer circumferential end of the base portion 22 . Due to the protrusion of the stop portion 21, the stop portion 21 and the base portion 22 form a constriction in the fixture engaging portion 13. Note that it is preferable that the width of the base portion 22 in the tangential direction is smaller than the diameter of the leader line 10 . The fixture engaging portion 13 has a thickness sufficient for strength in the axial direction of the insulator 3 and includes a wiring plane 23 that comes into contact with the leader line 10 .

また、固定具係合部１３の内周側であって外径側膨出部端面２４上には突起部１４ａが、天面の基板９が配置される内径側に位置する内径側膨出部端面２５上には突起部１４ｂが、軸方向に突出している。突起部１４（突起部１４ａ、突起部１４ｂ）は、基板９をインシュレータ３に配置する際に、基板９を把持するとともに、基板９の位置を径方向および周方向に対し安定させる役割を果たす。本実施の形態では一例として、外径側膨出部端面２４上においては固定具係合部１３の周方向における基部２２よりも広い幅（間隔）を設けて突起部１４ａを配置している。また、突起部１４ｂは、内径側膨出部端面２５上において、基部２２中心から周方向に両側各４５°の方向に離隔した位置に形成される。 Further, a protrusion 14a is provided on the end face 24 of the outer diameter side bulge on the inner circumference side of the fixture engaging portion 13, and an inner diameter side bulge located on the inner diameter side where the top board 9 is disposed. A protrusion 14b protrudes on the end surface 25 in the axial direction. The protrusions 14 (protrusions 14a, 14b) play the role of gripping the substrate 9 and stabilizing the position of the substrate 9 in the radial and circumferential directions when the substrate 9 is placed on the insulator 3. In the present embodiment, as an example, the protrusions 14a are arranged with a width (interval) wider than the base 22 of the fixture engaging portion 13 in the circumferential direction on the end surface 24 of the bulge on the outer diameter side. Further, the protrusion portions 14b are formed on the inner diameter side bulging portion end face 25 at positions spaced apart from the center of the base portion 22 in the circumferential direction in a direction of 45° on each side.

続いて、図４を参照し基板９とインシュレータ３の構成詳細を説明する。なお、図４は基板９とインシュレータ３の平面図である。 Next, the detailed configuration of the substrate 9 and the insulator 3 will be explained with reference to FIG. Note that FIG. 4 is a plan view of the substrate 9 and the insulator 3.

基板９は、部分ドーナツ形状の内径および外径から、基板９の内部方向に向かう切欠き１５、つまり切欠き１５ａおよび切欠き１５ｂを備えている。各切欠き１５の位置とサイズは、その目的からインシュレータ３の有する突起部１４ａと突起部１４ｂに対応する。つまり基板９載置時には、基板９が備える切欠き１５ａ、切欠き１５ｂとインシュレータ３が備える突起部１４ａ、突起部１４ｂとがそれぞれ係合することで、径方向および周方向の位置が決まる。また、軸方向の位置は、基板９と外径側膨出部端面２４および内径側膨出部端面２５が接することで決まる。この状態では、固定具係合部１３は基板９の外周よりもさらに外周に突出している。 The substrate 9 includes a notch 15 extending inward from the inner and outer diameters of the partial donut shape, that is, a notch 15a and a notch 15b. The position and size of each notch 15 correspond to the protrusions 14a and 14b of the insulator 3 in view of its purpose. That is, when the substrate 9 is placed, the notches 15a and 15b of the substrate 9 and the protrusions 14a and 14b of the insulator 3 engage with each other, thereby determining the positions in the radial direction and the circumferential direction. Further, the position in the axial direction is determined by the contact between the substrate 9, the end face 24 of the outer diameter side bulge, and the end face 25 of the inner diameter side bulge. In this state, the fixture engaging portion 13 protrudes further to the outer periphery than the outer periphery of the substrate 9.

また基板９は、切欠き１５近傍に、引出線固定具１２が備える基板保持リブ３７（図５、図６参照）が係合するための、膨出部２６を有する。 Further, the substrate 9 has a bulge 26 near the notch 15 with which a substrate holding rib 37 (see FIGS. 5 and 6) of the leader line fixture 12 is engaged.

膨出部２６は、基板９の外周近傍にて外周方向に突出することにより、切欠き１５を形成する。膨出部２６は、周方向両側に辺Ａ４８と辺Ｂ４９とを備える。辺Ａ４８と辺Ｂ４９とは、平行ではなく、膨出部２６の上面視にして外広がりに設けられている。すなわち膨出部２６は上面視にして上底を内周側に、下底を外周側に向けた略台形形状を有している。これにより、基板９と引出線固定具１２との係合時における、径方向への移動を強く抑制でき、引出線１０の引き抜きに対して強い耐性を有する。 The bulging portion 26 forms the notch 15 by protruding toward the outer circumference near the outer circumference of the substrate 9 . The bulging portion 26 includes a side A48 and a side B49 on both sides in the circumferential direction. The side A48 and the side B49 are not parallel to each other, but extend outward when viewed from the top of the bulging portion 26. That is, the bulging portion 26 has a substantially trapezoidal shape with the upper base facing the inner circumferential side and the lower base facing the outer circumferential side when viewed from above. This makes it possible to strongly suppress movement in the radial direction when the substrate 9 and the leader wire fixture 12 are engaged with each other, and provide strong resistance to the pull-out of the leader wire 10.

続いて図５、図６、図７を参照し、引出線固定具１２の詳細を説明する。なお、図５は引出線固定具１２の斜視図、図６は図５の引出線固定具１２におけるＡ－Ａ断面図、図７は引出線固定具１２（図６）における下面図である。 Next, details of the leader line fixture 12 will be explained with reference to FIGS. 5, 6, and 7. 5 is a perspective view of the leader wire fixture 12, FIG. 6 is a sectional view taken along the line AA of the leader wire fixture 12 in FIG. 5, and FIG. 7 is a bottom view of the leader wire fixture 12 (FIG. 6).

引出線固定具１２は、引出線１０が挿通される挿通部４３と、基板９及びインシュレータ３と係合するための、括れ係合部４０とを備える。 The leader wire fixture 12 includes an insertion portion 43 through which the leader wire 10 is inserted, and a constricted engagement portion 40 for engaging with the board 9 and the insulator 3.

挿通部４３は、引出線固定具１２の内周側端部から外周側端部までを貫通した孔である。また挿通部４３は、中空円筒形であり、内部空間を引出線１０が挿通される。挿通部４３は、挿通孔２７と、挿通孔延長部４４とより構成される。 The insertion portion 43 is a hole that passes through the leader wire fixture 12 from the inner peripheral end to the outer peripheral end. The insertion portion 43 has a hollow cylindrical shape, and the leader wire 10 is inserted through the inner space. The insertion portion 43 includes the insertion hole 27 and the insertion hole extension portion 44 .

挿通孔２７は、外周部２９と、内周部３１と、接続部３０とを備える。言い換えると、挿通部４３における、外周部２９から接続部３０を介して内周部３１までに至るまでの範囲が挿通孔２７に該当する。 The insertion hole 27 includes an outer peripheral part 29, an inner peripheral part 31, and a connecting part 30. In other words, the range of the insertion portion 43 from the outer peripheral portion 29 to the inner peripheral portion 31 via the connecting portion 30 corresponds to the insertion hole 27 .

外周部２９は、挿通孔２７の外周面からさらに外周に突出する。外周部２９は、厚み方向に板状のアーチ形状を有し、アーチ形状における曲部近傍で挿通孔２７が貫通する。アーチ形状は、ハウジング１６ａに設けられたＵ字形状の切欠き部１７よりもひと回り大きく、すなわち切欠き部１７全体を覆うことが可能である。外周部２９は、ラップ部３３と、フランジ接面３５とを備える。 The outer circumferential portion 29 protrudes further outward from the outer circumferential surface of the insertion hole 27 . The outer peripheral portion 29 has a plate-like arch shape in the thickness direction, and the insertion hole 27 penetrates near the curved portion of the arch shape. The arch shape is slightly larger than the U-shaped notch 17 provided in the housing 16a, that is, it can cover the entire notch 17. The outer peripheral portion 29 includes a wrap portion 33 and a flange contact surface 35.

ラップ部３３は、アーチ形状の下端矩形部に該当し、引出線固定具１２を切欠き部１７に嵌め込んだ際に、鉄心２と同一円状にまで延設され、すなわち鉄心２と径方向で一致する。言い換えると、ラップ部３３の内周面は、鉄心２と対向し、ハウジング１６ａとハウジング１６ｂとが係合した際には、内周面はハウジング１６ｂと対向する。 The wrap portion 33 corresponds to the lower end rectangular portion of the arch shape, and when the leader wire fixture 12 is fitted into the notch portion 17, it extends to the same circular shape as the iron core 2, that is, it extends in the radial direction from the iron core 2. matches. In other words, the inner circumferential surface of the wrap portion 33 faces the iron core 2, and when the housing 16a and the housing 16b are engaged, the inner circumferential surface faces the housing 16b.

フランジ接面３５は、アーチ形状の下端矩形部の底面であり、ハウジング１６ａとハウジング１６ｂとが係合した際に、ハウジング１６ｂのフランジ３４と面する。言い換えると、フランジ接面３５は、ハウジング１６ｂの天面開口と同一面上に位置する。 The flange contact surface 35 is the bottom surface of the arch-shaped lower rectangular portion, and faces the flange 34 of the housing 16b when the housings 16a and 16b are engaged. In other words, the flange contact surface 35 is located on the same plane as the top opening of the housing 16b.

内周部３１は、挿通孔２７の延び方向における外周部２９の内周側に、接続部３０を隔てて設けられる。内周部３１は、挿通孔２７における狭窄部２８とは逆側の端部において、挿通孔２７の外周面からさらに外周に突出する。内周部３１は、板状であり、中央部近傍で挿通孔２７が貫通する。言い換えると、挿通孔２７は、外周部２９と内周部３１とを貫通する。内周部３１のハウジング１６ａ側における軸方向の高さは、外周部２９の同高さよりも高く構成される。内周部３１は、鉄心接面３６と、基板保持リブ３７とを備える。 The inner peripheral part 31 is provided on the inner peripheral side of the outer peripheral part 29 in the extending direction of the insertion hole 27, with the connecting part 30 in between. The inner peripheral portion 31 further protrudes outward from the outer peripheral surface of the insertion hole 27 at the end of the insertion hole 27 on the side opposite to the narrowed portion 28 . The inner peripheral part 31 is plate-shaped, and the insertion hole 27 passes through it near the center. In other words, the insertion hole 27 penetrates the outer circumferential portion 29 and the inner circumferential portion 31 . The height of the inner peripheral part 31 on the housing 16a side in the axial direction is higher than the same height of the outer peripheral part 29. The inner peripheral portion 31 includes an iron core contacting surface 36 and a substrate holding rib 37.

鉄心接面３６は、内周部３１において、フランジ接面３５よりも挿通孔２７に近い位置に、フランジ接面３５と平行に設けられる。鉄心接面３６は、ハウジング１６ａとハウジング１６ｂとが係合した際に、鉄心２の継鉄部と面し、すなわち鉄心２に被る。 The core contacting surface 36 is provided in parallel to the flange contacting surface 35 at a position closer to the insertion hole 27 than the flange contacting surface 35 in the inner peripheral portion 31 . The core contact surface 36 faces the yoke portion of the core 2, that is, covers the core 2 when the housing 16a and the housing 16b are engaged.

基板保持リブ３７は、内周部３１における鉄心接面３６とは挿通孔２７を挟んで逆の位置に設けられる。基板保持リブ３７は、挿通孔２７における狭窄部２８とは逆側の端部からさらに中心軸１９側に突出し、基板９と係合することで引出線と基板９との位置関係を安定させる。基板保持リブ３７は、楔形状溝３８と、基板接面３９とを備える。 The substrate holding rib 37 is provided at a position opposite to the core contacting surface 36 of the inner peripheral portion 31 with the insertion hole 27 in between. The substrate holding rib 37 further protrudes toward the central axis 19 from the end of the insertion hole 27 opposite to the narrowed portion 28 and stabilizes the positional relationship between the lead wire and the substrate 9 by engaging with the substrate 9. The substrate holding rib 37 includes a wedge-shaped groove 38 and a substrate contacting surface 39.

楔形状溝３８は、基板９の備える膨出部２６が係合するよう、楔形状を有する。つまり、膨出部２６がオス側、楔形状溝３８がメス側となり係合する。図７に示すように、楔形状溝３８は、基板保持リブ３７の下方から上方に向けて彫り込まれた溝であり、引出線固定具１２を基板９の上方から嵌め込むことで、膨出部２６が楔形状溝３８と係合する。 The wedge-shaped groove 38 has a wedge shape so that the bulge 26 of the substrate 9 is engaged therewith. That is, the bulging portion 26 is on the male side and the wedge-shaped groove 38 is on the female side for engagement. As shown in FIG. 7, the wedge-shaped groove 38 is a groove carved upward from the bottom of the board holding rib 37, and by fitting the leader line fixing tool 12 from above the board 9, the bulging portion 26 engages wedge-shaped groove 38 .

基板接面３９は、楔形状溝３８の底面を構成する。つまり、基板接面３９が、膨出部２６が楔形状溝３８に嵌め込まれた状態で、膨出部２６と接することで、基板保持リブ３７が基板９に固定される。 The substrate contacting surface 39 constitutes the bottom surface of the wedge-shaped groove 38 . That is, the substrate holding rib 37 is fixed to the substrate 9 by the substrate contact surface 39 coming into contact with the bulge 26 in a state where the bulge 26 is fitted into the wedge-shaped groove 38 .

接続部３０は、外周部２９と内周部３１とを、両者の間に所定の間隔（隙間）をあけて接続する。つまり接続部３０は、挿通孔２７の外周面の一部であって、外周部２９の外周側端部から内周部３１の内周側端部までの範囲である。接続部３０により設けられた隙間には、Ｕ字形状の切欠き部１７の周縁が位置する。すなわち外周部２９の内周面（ただしラップ部３３を除く）と、内周部３１の外周面とで切欠き部１７を有するハウジング１６ａの側面を挟持する。 The connecting portion 30 connects the outer peripheral portion 29 and the inner peripheral portion 31 with a predetermined interval (gap) between them. In other words, the connecting portion 30 is a part of the outer circumferential surface of the insertion hole 27 and extends from the outer circumferential end of the outer circumferential portion 29 to the inner circumferential end of the inner circumferential portion 31 . The periphery of the U-shaped notch 17 is located in the gap provided by the connecting portion 30 . That is, the side surface of the housing 16a having the notch 17 is held between the inner circumferential surface of the outer circumferential portion 29 (excluding the wrap portion 33) and the outer circumferential surface of the inner circumferential portion 31.

挿通孔延長部４４は、挿通孔２７の外周側の一端、つまり外周部２９から外周方向に立設され、挿通部４３の一部を構成する。挿通孔延長部４４は、挿通孔２７を外周方向に延長する。挿通孔延長部４４は、外周側端部に、内周側よりも内径が狭く形成された狭窄部２８を備える。つまり狭窄部２８は、挿通孔２７の延長方向先端、すなわち挿通孔延長部４４の先端において、壁面を内周方向に屈折させて伸長することで、挿通孔２７の開口面積を狭く形成している。また、挿通孔延長部４４は、延長方向に対して垂直な断面視において、内周面から外周面までの厚みが周囲より厚い肉厚部３２を備える。ここで周囲とは、挿通孔２７を形成する壁面であって、肉厚部３２よりも厚みが薄い部位を指す。 The insertion hole extension portion 44 is erected in the outer peripheral direction from one end of the outer peripheral side of the insertion hole 27, that is, the outer peripheral portion 29, and constitutes a part of the insertion portion 43. The insertion hole extension portion 44 extends the insertion hole 27 in the outer circumferential direction. The insertion hole extension portion 44 includes a narrowed portion 28 on the outer circumferential side end portion, the inner diameter of which is narrower than that on the inner circumferential side. In other words, the narrowed portion 28 narrows the opening area of the insertion hole 27 by bending and extending the wall surface in the inner circumferential direction at the tip in the extension direction of the insertion hole 27, that is, at the tip of the insertion hole extension portion 44. . In addition, the insertion hole extension portion 44 includes a thick portion 32 that is thicker from the inner circumferential surface to the outer circumferential surface than the periphery in a cross-sectional view perpendicular to the extension direction. Here, the periphery refers to a wall surface that forms the insertion hole 27 and is thinner than the thick portion 32 .

また、引出線固定具１２は、括れ係合部４０を備える。 Further, the leader wire fixture 12 includes a constricted engagement portion 40 .

括れ係合部４０は、外周部２９と、内周部３１と、接続部３０により形成され、インシュレータ３に形成された固定具係合部１３と係合する。具体的には、図６及び図７に示すように、括れ係合部４０は、径方向において、外周部２９の内周面であってラップ部３３よりも挿通孔延長部４４側の面と、内周部３１の外周面とで挟まれた空間である。また、括れ係合部４０は、周方向において、接続部３０の周方向両端で挟まれた空間である。括れ係合部４０は、図３や図４に示した固定具係合部１３を下方より上方に向けて挿入し、格納することで、引出線固定具１２をインシュレータ３に固定する。つまり、引出線固定具１２は、括れ係合部４０と、楔形状溝３８とによって、基板９及びインシュレータ３に強固に固定される。 The constriction engaging portion 40 is formed by the outer peripheral portion 29, the inner peripheral portion 31, and the connecting portion 30, and engages with the fixture engaging portion 13 formed on the insulator 3. Specifically, as shown in FIGS. 6 and 7, the constricted engagement portion 40 is connected to a surface of the inner peripheral surface of the outer peripheral portion 29 that is closer to the insertion hole extension portion 44 than the wrap portion 33 in the radial direction. , and the outer peripheral surface of the inner peripheral portion 31. Further, the constricted engagement portion 40 is a space sandwiched between both circumferential ends of the connecting portion 30 in the circumferential direction. The constriction engaging portion 40 fixes the leader wire fixture 12 to the insulator 3 by inserting the fixture engaging portion 13 shown in FIGS. 3 and 4 upward from below and storing it. That is, the leader wire fixture 12 is firmly fixed to the substrate 9 and the insulator 3 by the constricted engagement portion 40 and the wedge-shaped groove 38.

続いて図８、図９、図１０を参照し、基板組８を構成する基板９、引出線１０、保護チューブ１１、引出線固定具１２、について説明する。図８は基板組８の下面斜視図及び上面斜視図であり、図９は基板９と、引出線固定具１２の分解図、図１０は、電動機６にハウジング１６ａのみ載置していない分解斜視図である。 Next, with reference to FIGS. 8, 9, and 10, the board 9, leader line 10, protective tube 11, and leader line fixture 12 that constitute the board set 8 will be described. 8 is a bottom perspective view and a top perspective view of the board assembly 8, FIG. 9 is an exploded view of the board 9 and the leader wire fixture 12, and FIG. 10 is an exploded perspective view of the motor 6 with only the housing 16a not mounted It is a diagram.

引出線１０は、複数の導電線４５と、複数の導電線をそれぞれ被覆する絶縁被膜４６と、複数の絶縁被膜４６を束ねて保護する保護チューブ１１とで構成される。 The leader wire 10 includes a plurality of conductive wires 45, an insulating coating 46 that covers each of the plurality of conductive wires, and a protective tube 11 that bundles and protects the plurality of insulating coatings 46.

保護チューブ１１は、引出線固定具１２の挿通孔２７に挿通され、引出線端末が基板９の各電気接点と接続される。 The protective tube 11 is inserted into the insertion hole 27 of the leader wire fixture 12, and the leader wire terminals are connected to each electrical contact point of the board 9.

基板９は、膨出部２６において、引出線固定具１２が備える基板保持リブ３７と係合する。つまり、基板９は、図９に示す破線矢印４７に示す方向に沿って引出線固定具１２に嵌め込むことで、引出線固定具１２の基板保持リブ３７が備える楔形状溝３８および基板接面３９と、基板９が有する膨出部２６が係合し、保持される。引出線固定具１２の楔形状溝３８は、基板９の膨出部２６を把持する目的から相似形となっており、楔形状により、基板９の位置を径方向および周方向に対し安定させることができる。 The board 9 engages with a board holding rib 37 provided on the leader line fixture 12 at the bulge 26 . That is, by fitting the board 9 into the leader line fixture 12 along the direction shown by the broken line arrow 47 shown in FIG. 39 and the bulge 26 of the substrate 9 are engaged and held. The wedge-shaped groove 38 of the leader wire fixture 12 has a similar shape for the purpose of gripping the bulge 26 of the substrate 9, and the wedge shape stabilizes the position of the substrate 9 in the radial and circumferential directions. I can do it.

ステータ１は、図１０に示すように、ステータ１に備える鉄心２の外径とほぼ同径の内周径を有するハウジング１６ｂに所定の深さ嵌合している。この際、基板組８が備える引出線固定具１２の括れ係合部４０は、インシュレータ３が備える固定具係合部１３と係合しており、軸方向においては、鉄心２の継鉄部７と引出線固定具１２が備える鉄心接面３６が面している。また、ハウジング１６ｂの備えるフランジ３４に対し、引出線固定具１２が備えるフランジ接面３５が面している。 As shown in FIG. 10, the stator 1 is fitted to a predetermined depth into a housing 16b having an inner circumferential diameter that is approximately the same as the outer diameter of the iron core 2 provided in the stator 1. At this time, the constricted engagement part 40 of the leader wire fixture 12 provided in the board assembly 8 is engaged with the fixture engagement part 13 provided in the insulator 3, and in the axial direction, the yoke part 7 of the iron core 2 The core contacting surface 36 of the leader wire fixture 12 faces. Further, the flange contact surface 35 of the leader wire fixture 12 faces the flange 34 of the housing 16b.

上記構成において、基板組８における引出線固定具１２の取り付け位置は、図４に示した基板９が備える膨出部２６および、図５～図７に示した引出線固定具１２の基板保持リブ３７が備える楔形状溝３８と基板接面３９により決定される。また、ステータ１における基板組８の取り付け位置は、図６～図７に示した引出線固定具１２が備える括れ係合部４０と、図３～図４に示したインシュレータ３が備えるＴ字状の固定具係合部１３により決定される。基板組８のインシュレータ３に対する周方向と径方向の位置については、図４に示したインシュレータ３が備える突起部１４や、基板９が備える切欠き１５、括れ係合部４０により決定される。 In the above configuration, the mounting position of the leader wire fixture 12 in the board set 8 is the bulge portion 26 of the board 9 shown in FIG. 4 and the board holding rib of the leader wire fixture 12 shown in FIGS. 5 to 7. 37 is determined by the wedge-shaped groove 38 and the substrate contact surface 39. Further, the mounting position of the board assembly 8 in the stator 1 is determined by the constricted engagement portion 40 of the leader wire fixture 12 shown in FIGS. 6 to 7 and the T-shaped part of the insulator 3 shown in FIGS. is determined by the fixture engaging portion 13 of. The circumferential and radial positions of the board set 8 with respect to the insulator 3 are determined by the protrusion 14 of the insulator 3 shown in FIG. 4, the notch 15 of the board 9, and the constricted engagement part 40.

また、基板組８の軸方向載置高さについては、図３に示したインシュレータ３が備える外径側膨出部端面２４と内径側膨出部端面２５で決定される。 The axial mounting height of the board assembly 8 is determined by the outer radially bulging end face 24 and the inner radially bulging end face 25 of the insulator 3 shown in FIG.

電動機６におけるハウジング１６ａの載置においては、引出線固定具１２が備える接続部３０により形成された溝と、ハウジング１６ａが備える切欠き部１７が係合することで、容易な組立が可能となる。ハウジング１６ａとハウジング１６ｂとを係合し押圧する際、基板９は、図３に示した外径側膨出部端面２４と、引出線固定具１２が備える基板接面３９で挟持されることで軸方向高さが安定する。 When the housing 16a is placed on the electric motor 6, the groove formed by the connection part 30 of the leader wire fixture 12 engages with the notch part 17 of the housing 16a, making assembly easy. . When the housing 16a and the housing 16b are engaged and pressed, the board 9 is held between the outer diameter side bulging end face 24 shown in FIG. The axial height is stable.

また、引出線固定具１２が備える外周部２９と内周部３１のハウジング１６ａ側における軸方向高さにおいては、相互に高低差を設けている。この高低差によって、ハウジング１６ａをステータ１に組み付ける際、ハウジング１６ａと引出線固定具１２とのズレを吸収でき、容易な組立自動化が期待できる。つまり、あらかじめハウジング１６ａを引出線固定具１２の外周部２９側、つまり低い方に僅かにずらして近接させ、所定の高さでハウジング１６ａを内周部３１側に移動させる。これにより、ハウジング１６ａの内周側側面が、内周部３１の外周面に当接し、ズレを修正できる。この状態で、ハウジング１６ａとハウジング１６ｂとを組み付けることで、隙間の狭い接続部３０に、切欠き部１７を正確に挿入可能となる。なお、本実施の形態では、外周部２９の高さを内周部３１の高さよりも低く構成しているが、逆に構成しても同様の効果が得られる。つまり、高さ（高さ方向の位置）に差異があれば良い。 Furthermore, there is a height difference in the axial heights of the outer peripheral part 29 and the inner peripheral part 31 of the leader wire fixture 12 on the housing 16a side. Due to this difference in height, when assembling the housing 16a to the stator 1, it is possible to absorb misalignment between the housing 16a and the leader wire fixture 12, and easy assembly automation can be expected. That is, the housing 16a is moved slightly toward the outer circumference 29 side of the leader line fixture 12, that is, the lower side, and then moved closer to the inner circumference 31 at a predetermined height. Thereby, the inner circumferential side surface of the housing 16a comes into contact with the outer circumferential surface of the inner circumferential portion 31, and the deviation can be corrected. By assembling the housing 16a and the housing 16b in this state, the notch 17 can be accurately inserted into the connection part 30 with a narrow gap. In this embodiment, the height of the outer circumferential portion 29 is configured to be lower than the height of the inner circumferential portion 31, but the same effect can be obtained even if the configuration is reversed. In other words, it is sufficient if there is a difference in height (position in the height direction).

さらに、ハウジング１６ａとハウジング１６ｂとを係合し押圧する際、図７の形状で示したように、括れ係合部４０に挿入された固定具係合部１３が内側から周方向外側に向けて、接続部３０にて狭持された切欠き部１７が外側から周方向内側に向けて、引出線固定具１２を挟持する。つまり、引出線固定具１２とハウジング１６ａとは密に係合し、塵埃や水分に対しての耐力向上が期待できる。 Furthermore, when the housing 16a and the housing 16b are engaged and pressed, the fixture engaging portion 13 inserted into the constricted engaging portion 40 moves from the inside toward the outside in the circumferential direction, as shown in the shape of FIG. , the notch 17 held in the connecting part 30 holds the leader wire fixture 12 from the outside toward the inside in the circumferential direction. In other words, the leader wire fixture 12 and the housing 16a are closely engaged, and an improvement in resistance to dust and moisture can be expected.

また、鉄心接面３６は、鉄心２の継鉄部と面するため、すなわち鉄心２に被るため、切欠き部１７の天面開口側において、外周部２９と引出線固定具１２との間をすり抜けた埃などが存在したとしても、鉄心２に阻まれて、電動機６の内部まで侵入することを防止できる。 In addition, since the core contacting surface 36 faces the yoke of the core 2, that is, it covers the core 2, the core contact surface 36 has a gap between the outer circumference 29 and the leader wire fixture 12 on the top opening side of the notch 17. Even if there is dust that has slipped through, it is blocked by the iron core 2 and can be prevented from penetrating into the electric motor 6.

また、引出線固定具１２が備える挿通部４３や狭窄部２８および、フランジ接面３５や、鉄心接面３６により、外部からの塵埃や水分を遮断できる。より外部からの塵埃や水分を遮断したい際には、引出線１０（保護チューブ１１）が挿通された状態で、引出線固定具１２の備える挿通孔延長部４４をインシュロックタイなどの結束部で縛ることで、更なる塵埃や水分の耐力向上が期待できる。結束部で挿通孔延長部４４を縛る際は、挿通孔延長部４４に内周面から外周面までの厚みが周囲より厚い肉厚部３２を備えることで、肉厚部３２の強度が上がることから肉厚部３２基準で縛ることが可能となり、引出線固定具１２の全体的な変形を抑制できる。 Further, the insertion portion 43, the narrowing portion 28, the flange contact surface 35, and the core contact surface 36 provided in the leader wire fixture 12 can block dust and moisture from the outside. If you want to further block out dust and moisture from the outside, tie the insertion hole extension 44 of the leader wire fixture 12 with a binding part such as an insurance lock tie while the leader wire 10 (protective tube 11) is inserted. This can be expected to further improve the resistance to dust and moisture. When binding the insertion hole extension part 44 with the binding part, the strength of the thick part 32 can be increased by providing the insertion hole extension part 44 with a thick part 32 that is thicker from the inner peripheral surface to the outer peripheral surface than the surrounding area. Since it is possible to tie the wire with reference to the thick wall portion 32, deformation of the leader wire fixture 12 as a whole can be suppressed.

（実施の形態２）
本発明の第２の実施の形態について、図面を参照しながら説明する。(Embodiment 2)
A second embodiment of the present invention will be described with reference to the drawings.

図１１を参照して本実施の形態に係る引出線固定具１２について説明する。図１１は引出線固定具１２の側断面図で、図６の側断面図に対し延設部５０とインシュレータ係合溝５２の構成が異なる。その他、共通となる構成部、取り付け方法の説明は、実施の形態１と重複するため割愛する。 The leader wire fixture 12 according to this embodiment will be described with reference to FIG. 11. FIG. 11 is a side sectional view of the leader wire fixture 12, which differs from the side sectional view in FIG. 6 in the configurations of the extension portion 50 and the insulator engagement groove 52. Descriptions of other common components and attachment methods are omitted because they overlap with those of the first embodiment.

延設部５０は、内周部３１の楔形状溝３８における内周側端部を鉄心接面３６方向へ延設することで形成される。インシュレータ係合溝５２は、挿通孔端部５１と延設部５０によって側断面視においてコの字状に形成される。延設部５０の延設長や延設部の厚みは、インシュレータ３の外壁、すなわちインシュレータ３の天面と引出線固定具１２を係合し保持する目的から、適宜長さと厚みを選定する。コの字状のインシュレータ係合溝５２に関しても、インシュレータ３の外壁と係合し保持する目的から、インシュレータ３の外壁に適した幅を選定する。 The extending portion 50 is formed by extending the inner circumferential end of the wedge-shaped groove 38 of the inner circumferential portion 31 in the direction of the core contacting surface 36 . The insulator engagement groove 52 is formed into a U-shape in a side cross-sectional view by the insertion hole end 51 and the extension portion 50. The length and thickness of the extension part 50 are appropriately selected for the purpose of engaging and holding the outer wall of the insulator 3, that is, the top surface of the insulator 3, and the leader wire fixture 12. Regarding the U-shaped insulator engaging groove 52, a width suitable for the outer wall of the insulator 3 is also selected for the purpose of engaging and holding the outer wall of the insulator 3.

上記構成により、実施の形態１で示した、固定具係合部１３と括れ係合部４０による保持に加え、インシュレータ３の外壁と、コの字状のインシュレータ係合溝５２による引出線固定具１２の保持が可能となり、より強固な把持が期待できる。また、モータ小型化や、モータの設計都合により鉄心２が有する継鉄部７の径方向厚みが薄くなり、インシュレータ３が有する固定具係合部１３の形成が困難な場合においても、インシュレータ３の外壁と、コの字状のインシュレータ係合溝５２による引出線固定具１２の保持を実現することができる。 With the above configuration, in addition to the holding by the fixture engaging part 13 and the constricted engaging part 40 shown in Embodiment 1, the leader wire fixture is held by the outer wall of the insulator 3 and the U-shaped insulator engaging groove 52. 12 can be held, and a stronger grip can be expected. Furthermore, even if the radial thickness of the yoke portion 7 of the iron core 2 becomes thinner due to downsizing of motors or motor design considerations, and it is difficult to form the fixture engaging portion 13 of the insulator 3, The leader wire fixture 12 can be held by the outer wall and the U-shaped insulator engagement groove 52.

なお、実施の形態２では実施の形態１に加えた構成にて引出線固定具１２の保持を説明しているが、実施の形態２の構成、つまりインシュレータ３の外壁と、コの字状のインシュレータ係合溝５２による引出線固定具１２の保持のみを実施してもよい。 In addition, in the second embodiment, holding the leader wire fixture 12 is explained using a configuration added to the first embodiment, but the configuration of the second embodiment, that is, the outer wall of the insulator 3 and the U-shaped The leader wire fixture 12 may only be held by the insulator engagement groove 52.

本発明にかかるモータは、引出線先端の仕様問わず、塵埃や水分に対しての耐力を維持しつつ、組立の自動化が期待できる。 The motor according to the present invention can be expected to automate assembly while maintaining resistance to dust and moisture regardless of the specifications of the leader wire tip.

１、１１１ステータ
２、１１２鉄心
３インシュレータ
４、１１３巻線
５端末接続部
６電動機
７継鉄部
８基板組
９基板
１０、１１４引出線
１１保護チューブ
１２、１１５引出線固定具
１３固定具係合部
１４、１４ａ、１４ｂ突起部
１５、１５ａ、１５ｂ切欠き
１７切欠き部
１９中心軸
２０インシュレータ外径
２１止め部
２２基部
２３配線平面
２４外径側膨出部端面
２５内径側膨出部端面
２６膨出部
２７挿通孔
２８狭窄部
２９外周部
３０接続部
３１内周部
３２肉厚部
３３ラップ部
３４フランジ
３５フランジ接面
３６鉄心接面
３７基板保持リブ
３８楔形状溝
３９基板接面
４０括れ係合部
４１貫通孔
４３挿通部
４４挿通孔延長部
４５導電線
４６絶縁被膜
４７破線矢印
４８辺Ａ
４９辺Ｂ
５０延設部
５１挿通孔端部
５２インシュレータ係合溝1, 111 Stator 2, 112 Iron core 3 Insulator 4, 113 Winding 5 Terminal connection part 6 Motor 7 Yoke part 8 Board assembly 9 Board 10, 114 Lead wire 11 Protective tube 12, 115 Lead wire fixture 13 Fixture engagement Portions 14, 14a, 14b Projections 15, 15a, 15b Notch 17 Notch 19 Central shaft 20 Insulator outer diameter 21 Stop portion 22 Base 23 Wiring plane 24 Outer diameter side bulge end face 25 Inner diameter side bulge end face 26 Swelling part 27 Insertion hole 28 Narrowing part 29 Outer circumference part 30 Connection part 31 Inner circumference part 32 Thick part 33 Wrap part 34 Flange 35 Flange contact surface 36 Core contact surface 37 Board holding rib 38 Wedge-shaped groove 39 Board contact surface 40 Constriction Engaging portion 41 Through hole 43 Insertion portion 44 Through hole extension portion 45 Conductive wire 46 Insulating coating 47 Broken line arrow 48 Side A
49 side B
50 Extension portion 51 Insertion hole end portion 52 Insulator engagement groove

Claims

ステータと、
前記ステータの軸方向における一端側に配置される基板と、
前記基板から引き出される引出線と、
前記一端側から前記ステータを内部空間に保持する有底円筒形のハウジングと、
前記ハウジングの側面に天面開口から底面に向けて設けられた切欠き部と、
前記引出線を保持して前記切欠き部に固定する引出線固定具と、を備え、
前記ステータは、
環形状に形成された鉄心と、
前記鉄心に巻回された巻線と、
前記鉄心と前記巻線との間を絶縁するインシュレータと、を備え、
前記インシュレータは、
外周方向に突出して前記引出線固定具と係合する固定具係合部を備え、
前記引出線固定具は、
前記固定具係合部に固定され、
前記固定具係合部は、
前記インシュレータから外周方向に突出する基部と、
前記基部の突出方向先端において環形状における接線方向に突出し前記引出線固定具の外周方向への移動を制限する止め部と、を備えた電動機。 stator and
a substrate disposed on one end side in the axial direction of the stator;
a leader line drawn out from the substrate;
a bottomed cylindrical housing that holds the stator in an internal space from the one end side;
a notch provided on a side surface of the housing from the top opening toward the bottom;
a leader line fixture that holds and fixes the leader line to the notch,
The stator is
An iron core formed in an annular shape,
a winding wound around the iron core;
an insulator that insulates between the iron core and the winding,
The insulator is
a fixture engaging portion that protrudes in the outer circumferential direction and engages with the leader line fixture;
The leader line fixture is
fixed to the fixture engaging part;
The fixture engaging portion is
a base projecting from the insulator in an outer circumferential direction;
An electric motor comprising: a stop portion that protrudes in a tangential direction of the annular shape at a tip of the base in a protruding direction and limits movement of the leader wire fixture in an outer circumferential direction.

ステータと、
前記ステータの軸方向における一端側に配置される基板と、
前記基板から引き出される引出線と、
前記一端側から前記ステータを内部空間に保持する有底円筒形のハウジングと、
前記ハウジングの側面に天面開口から底面に向けて設けられた切欠き部と、
前記引出線を保持して前記切欠き部に固定する引出線固定具と、を備え、
前記ステータは、
環形状に形成された鉄心と、
前記鉄心に巻回された巻線と、
前記鉄心と前記巻線との間を絶縁するインシュレータと、を備え、
前記引出線固定具は、
前記インシュレータの前記一端側に固定され、
当該引出線固定具と前記インシュレータとで前記基板を挟持する、
電動機。 stator and
a substrate disposed on one end side in the axial direction of the stator;
a leader line drawn out from the substrate;
a bottomed cylindrical housing that holds the stator in an internal space from the one end side;
a notch provided on a side surface of the housing from the top opening toward the bottom;
a leader line fixture that holds and fixes the leader line to the notch,
The stator is
An iron core formed in an annular shape,
a winding wound around the iron core;
an insulator that insulates between the iron core and the winding,
The leader line fixture is
fixed to the one end side of the insulator,
sandwiching the board between the leader wire fixture and the insulator;
Electric motor.

前記引出線固定具は、
外周側端部が前記鉄心の外周面と一致する請求項１または２記載の電動機。 The leader line fixture is
The electric motor according to claim 1 or 2, wherein the outer circumferential end portion coincides with the outer circumferential surface of the iron core.

前記引出線固定具は、
前記ハウジングの内周面に位置する内周部と、
前記ハウジングの外周面に位置する外周部と、
前記内周部と前記外周部とを接続する接続部と、
前記内周部と前記外周部と前記接続部とを貫通し前記引出線を挿通するための挿通孔と、を備えた請求項１または２記載の電動機。 The leader line fixture is
an inner peripheral portion located on the inner peripheral surface of the housing;
an outer peripheral portion located on the outer peripheral surface of the housing;
a connecting portion connecting the inner circumferential portion and the outer circumferential portion;
The electric motor according to claim 1 or 2, further comprising an insertion hole that penetrates the inner circumferential portion, the outer circumferential portion, and the connecting portion, and allows the leader wire to be inserted therethrough.

前記引出線固定具は、
前記内周部と前記外周部とで前記切欠き部を形成する前記ハウジングの側面を挟持する請求項４に記載の電動機。 The leader line fixture is
The electric motor according to claim 4, wherein the inner circumferential portion and the outer circumferential portion sandwich a side surface of the housing forming the notch.

前記引出線固定具は、
前記ハウジングの内周面に位置する内周部と、
前記ハウジングの外周面に位置する外周部と、
前記内周部と前記外周部とを接続する接続部と、
前記内周部と前記外周部と前記接続部とを貫通し前記引出線を挿通するための挿通孔と、を備え、
前記内周部と前記外周部とで前記固定具係合部を挟持する請求項１に記載の電動機。 The leader line fixture is
an inner peripheral portion located on the inner peripheral surface of the housing;
an outer peripheral portion located on the outer peripheral surface of the housing;
a connecting portion connecting the inner circumferential portion and the outer circumferential portion;
an insertion hole for penetrating the inner peripheral part, the outer peripheral part, and the connecting part and inserting the leader wire therethrough;
The electric motor according to claim 1 , wherein the fixture engaging portion is sandwiched between the inner peripheral portion and the outer peripheral portion.

前記引出線固定具は、
前記ハウジングの内周面に位置する内周部と、
前記ハウジングの外周面に位置する外周部と、
前記内周部と前記外周部とを接続する接続部と、
前記内周部と前記外周部と前記接続部とを貫通し前記引出線を挿通するための挿通孔と、を備え、
前記内周部と前記外周部とで前記切欠き部を形成する前記ハウジングの側面を径方向から挟持し、
前記内周部と前記外周部とで前記固定具係合部を径方向から挟持し、
前記ハウジングの側面と前記固定具係合部は、
前記接続部を周方向から挟持する、請求項１に記載の電動機。 The leader line fixture is
an inner peripheral portion located on the inner peripheral surface of the housing;
an outer peripheral portion located on the outer peripheral surface of the housing;
a connecting portion connecting the inner circumferential portion and the outer circumferential portion;
an insertion hole for penetrating the inner peripheral part, the outer peripheral part, and the connecting part and inserting the leader wire therethrough;
sandwiching a side surface of the housing forming the notch portion between the inner circumferential portion and the outer circumferential portion from a radial direction;
sandwiching the fixture engaging portion between the inner circumferential portion and the outer circumferential portion from a radial direction;
The side surface of the housing and the fixture engaging portion are
The electric motor according to claim 1 , wherein the connecting portion is clamped from the circumferential direction.

前記引出線固定具は、
前記外周部における前記ハウジングの天面開口側の端部が前記ハウジングの天面開口と同一面上に位置する請求項４記載の電動機。 The leader line fixture is
5. The electric motor according to claim 4, wherein an end of the outer peripheral portion on the side of the top opening of the housing is located on the same plane as the top opening of the housing.

前記引出線固定具は、
前記外周部における前記ハウジングの天面開口側の端部が前記鉄心に被る請求項４記載の電動機。 The leader line fixture is
5. The electric motor according to claim 4, wherein an end of the outer peripheral portion on the top opening side of the housing covers the iron core.

前記引出線固定具は、
中空円筒形で前記外周部から外周方向に立設し前記挿通孔を延長する挿通孔延長部を備え、
前記挿通孔延長部は、
延長方向に対して垂直な断面視において、内周面から外周面までの厚みが周囲より厚い肉厚部を備えた、請求項４記載の電動機。 The leader line fixture is
an insertion hole extension part having a hollow cylindrical shape and standing from the outer peripheral part in the outer peripheral direction and extending the insertion hole;
The insertion hole extension part is
5. The electric motor according to claim 4, further comprising a thick portion that is thicker from the inner circumferential surface to the outer circumferential surface than the surrounding area in a cross-sectional view perpendicular to the direction of extension.

前記挿通孔延長部は、
延長方向先端部にて内径方向に伸長することで前記挿通孔を狭窄化する狭窄部を備えた請求項１０記載の電動機。 The insertion hole extension part is
11. The electric motor according to claim 10, further comprising a narrowing portion that narrows the insertion hole by extending in the inner diameter direction at the distal end portion in the extending direction.

前記引出線固定具は、
前記内周部と前記外周部の軸方向の高さに差異を設けた請求項４記載の電動機。 The leader line fixture is
The electric motor according to claim 4, wherein the inner circumferential portion and the outer circumferential portion have different heights in the axial direction.

前記引出線は、
複数の導電線と、
前記複数の導電線それぞれを被覆する絶縁被覆と、
複数の前記絶縁被覆を束ねる保護チューブと、を備え、
前記挿通孔延長部に前記保護チューブが挿通された状態で前記挿通孔延長部を結束する結束部を備えた請求項１０に記載の電動機。 The leader line is
a plurality of conductive wires;
an insulating coating that covers each of the plurality of conductive wires;
A protective tube that bundles a plurality of the insulation coatings,
The electric motor according to claim 10, further comprising a binding portion that binds the insertion hole extension portion in a state in which the protective tube is inserted into the insertion hole extension portion.