JP2000232745A - Compressor motor - Google Patents
Compressor motorInfo
- Publication number
- JP2000232745A JP2000232745A JP11033207A JP3320799A JP2000232745A JP 2000232745 A JP2000232745 A JP 2000232745A JP 11033207 A JP11033207 A JP 11033207A JP 3320799 A JP3320799 A JP 3320799A JP 2000232745 A JP2000232745 A JP 2000232745A
- Authority
- JP
- Japan
- Prior art keywords
- stator
- neutral
- phase
- coils
- insulating frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、固定子の複数の磁
極歯に対して3相星形結線のコイルが直接巻線された構
造の圧縮機用電動機に係り、とりわけ、各コイルからの
中性線の接続構造を改良した圧縮機用電動機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compressor motor having a structure in which a three-phase star-connected coil is directly wound on a plurality of magnetic pole teeth of a stator. The present invention relates to a compressor motor having an improved connection structure for sex wires.
【0002】[0002]
【従来の技術】図18及び図19には、本発明が適用さ
れる一般的な圧縮機用電動機の固定子1が示されてい
る。この固定子1は、周方向に間隔を置いて配置された
複数(この場合は6極)の磁極歯12を有する固定子鉄
心10を備えている。この固定子鉄心10の各磁極歯1
2に対しては、3相星形結線のコイル2がそれぞれ(絶
縁枠3を介して)装着されている。2. Description of the Related Art FIGS. 18 and 19 show a stator 1 of a general compressor motor to which the present invention is applied. The stator 1 includes a stator core 10 having a plurality of (in this case, 6 poles) magnetic pole teeth 12 arranged at intervals in the circumferential direction. Each magnetic pole tooth 1 of the stator core 10
2, three-phase star-connected coils 2 are mounted (via insulating frames 3).
【0003】このような3相星形結線の圧縮機用電動機
においては従来、6極のコイルからの6本の中性線を互
いに接続して中性点を形成している。例えば図20に
は、固定子1の各相毎に2極ずつの合計6極のコイルが
並列結線された従来の圧縮機用電動機における結線図が
示されている。In such a three-phase star-connected compressor motor, conventionally, six neutral wires from a six-pole coil are connected to each other to form a neutral point. For example, FIG. 20 shows a connection diagram of a conventional compressor motor in which a total of six pole coils, two poles each for each phase of the stator 1, are connected in parallel.
【0004】図20において、U、V、Wの3相につい
て、それぞれ一対(2極)のコイル2u、2v、2w
が、固定子1の半径方向に対向して設けられ、各相を構
成する一対ずつのコイル2u、2v、2wが、ぞれぞれ
並列に結線されている。そして、これらの合計6極のコ
イル2u〜2wからの6本の中性線90u〜90wを互
いに接続することで、3相星形結線における中性点が形
成されている。In FIG. 20, a pair (two poles) of coils 2u, 2v, and 2w are provided for three phases U, V, and W, respectively.
Are provided opposite to each other in the radial direction of the stator 1, and a pair of coils 2u, 2v, 2w constituting each phase are connected in parallel. By connecting the six neutral wires 90u to 90w from the coils 6u to 2w having a total of six poles to each other, a neutral point in the three-phase star connection is formed.
【0005】この場合、6本の中性線90u〜90w同
士の接続は、溶接、半田付け、リード線による連結等の
手段で成されている。また、各磁極歯12に対してコイ
ルを直接巻線する構造のものでは、回路基板等を用いた
接続が成されている。In this case, the connection between the six neutral wires 90u to 90w is made by means such as welding, soldering, connection by lead wires, or the like. In a structure in which a coil is wound directly on each magnetic pole tooth 12, a connection is made using a circuit board or the like.
【0006】[0006]
【発明が解決しようとする課題】上述したような従来の
圧縮機用電動機には、以下のような問題点がある。すな
わち、中性点を形成するために多くの中性線(図20に
示す6極式の場合で6本)を互いに接続しなければなら
ないため、接続が面倒である上に、接続不良を生ずる可
能性が高く、信頼性の点で問題がある。また、回路基板
等を用いて接続する場合は、コストの点でも問題があ
る。The conventional motor for a compressor as described above has the following problems. In other words, many neutral wires (six in the case of the six-pole type shown in FIG. 20) must be connected to each other to form a neutral point, which is troublesome and causes poor connection. Probable and has reliability issues. Further, when connection is made using a circuit board or the like, there is a problem in terms of cost.
【0007】本発明は、このような点を考慮してなされ
たものであり、従来より少ない本数の中性線同士の接続
で中性点を形成できるような固定子の結線構造によっ
て、固定子における結線が容易で、信頼性に優れ、かつ
低コストな圧縮機用電動機を提供することを目的とす
る。The present invention has been made in view of such a point, and has a stator connecting structure that allows a neutral point to be formed by connecting a smaller number of neutral wires than conventional ones. It is an object of the present invention to provide a compressor motor that is easy to connect, excellent in reliability, and low in cost.
【0008】[0008]
【課題を解決するための手段】第1の手段は、回転子と
固定子とを備え、前記固定子は、周方向に間隔を置いて
配置された複数の磁極歯を有すると共に、これらの磁極
歯に対して3相星形結線のコイルが直接巻線されてお
り、前記固定子における3相のうち任意の1相のコイル
からの中性線に対して、他の2相のコイルからの中性線
をそれぞれ1箇所ずつで接続したことを特徴とする圧縮
機用電動機である。A first means comprises a rotor and a stator, the stator having a plurality of circumferentially spaced magnetic pole teeth and these magnetic pole teeth. A three-phase star-connected coil is wound directly on the tooth, and a neutral wire from any one of the three phases of the stator is connected to a neutral wire from the other two-phase coils. An electric motor for a compressor, wherein a neutral wire is connected at each one point.
【0009】この第1の手段によれば、任意の1相のコ
イルからの中性線に対して、他の2相のコイルからの中
性線をそれぞれ1箇所ずつで接続することで、3相星形
結線における中性点が形成される。すなわち、合計2箇
所の接続部分でそれぞれ2本ずつの中性線同士を接続す
ることによって当該中性点が形成される。According to the first means, the neutral wire from the arbitrary one-phase coil is connected to the neutral wire from the other two-phase coils at each one point, whereby three Neutral points in the star connection are formed. That is, the neutral point is formed by connecting two neutral wires to each other at a total of two connection portions.
【0010】第2の手段は、第1の手段において、前記
固定子の各相を、互いに並列接続された複数極のコイル
で構成し、当該複数極のコイル間を連続して巻線すると
共に、当該複数極のコイル間の渡り線を前記中性線とす
るものである。A second means is the first means, wherein each phase of the stator is constituted by a plurality of pole coils connected in parallel with each other, and the plurality of pole coils are continuously wound. The crossover between the coils of the plurality of poles is the neutral wire.
【0011】第3の手段は、回転子と固定子とを備え、
前記固定子は、周方向に間隔を置いて配置された複数の
磁極歯を有すると共に、これらの磁極歯に対して3相星
形結線のコイルが直接巻線されており、前記固定子の各
相を、互いに並列接続された複数極のコイルで構成し、
前記固定子における任意の複数極のコイル間を連続して
巻線すると共に、当該複数極のコイル間の渡り線を各相
のコイルからの中性線とし、3相のコイルからの中性線
同士を1箇所で接続したことを特徴とする圧縮機用電動
機である。The third means comprises a rotor and a stator,
The stator has a plurality of magnetic pole teeth arranged at intervals in the circumferential direction, and a three-phase star-connected coil is directly wound around these magnetic pole teeth. The phase consists of a multi-pole coil connected in parallel with each other,
The winding between the plural-pole coils in the stator is continuously wound, and the crossover between the plural-pole coils is a neutral wire from each phase coil, and a neutral wire from the three-phase coil is formed. An electric motor for a compressor, wherein the electric motors are connected at one place.
【0012】この第3の手段によれば、3相のコイルか
らの合計3本の中性線(渡り線)同士を1箇所で接続す
ることで、3相星形結線における中性点が形成される。According to the third means, a neutral point in the three-phase star connection is formed by connecting a total of three neutral wires (crossover wires) from the three-phase coils at one place. Is done.
【0013】第4の手段は、第1乃至第3のいずれかの
手段において、各相の前記中性線を、前記固定子に対し
て、各相のコイルからの口出し線とは反対側に配置した
ものである。[0013] A fourth means is that, in any one of the first to third means, the neutral wire of each phase is placed on the opposite side of the stator from the lead wire from each phase coil. It is arranged.
【0014】第5の手段は、第1乃至第3のいずれかの
手段において、前記中性線同士の接続は、圧着端子また
は圧接端子を用いて成されているものである。According to a fifth aspect, in any one of the first to third aspects, the connection between the neutral wires is made by using a crimp terminal or a press contact terminal.
【0015】この第5の手段によれば、第1乃至第3の
いずれかの手段において、溶接や半田付け等による場合
に比べて、極めて容易かつ確実に接続を行うことができ
る。According to the fifth means, in any one of the first to third means, the connection can be made extremely easily and reliably as compared with the case of welding, soldering or the like.
【0016】第6の手段は、第1乃至第3のいずれかの
手段において、前記固定子に、各磁極歯へコイルを巻線
するための絶縁枠が取り付けられ、この絶縁枠に、開口
部を有した圧接端子を保持する端子固定部が形成され、
前記中性線同士の接続は、前記圧接端子に対してその開
口部から当該中性線を圧入することにより成されている
ものである。A sixth means is that in any one of the first to third means, an insulating frame for winding a coil around each magnetic pole tooth is attached to the stator, and an opening is formed in the insulating frame. A terminal fixing portion for holding a press contact terminal having a is formed,
The connection between the neutral wires is made by press-fitting the neutral wire into the press contact terminal from an opening thereof.
【0017】この第6の手段によれば、第1乃至第3の
いずれかの手段において、圧接端子に対してその開口部
から中性線を圧入するだけで、当該中性線同士の接続を
成すことができるので、極めて容易かつ確実に接続を行
うことができる。また、絶縁枠の端子固定部によって当
該圧接端子が保持されるので、中性線同士の接続部分を
(絶縁枠を介して)固定子に対して確実に保持すること
ができる。According to the sixth means, in any one of the first to third means, the neutral wires are connected only by press-fitting the neutral wires into the press contact terminals from the openings. The connection can be made very easily and reliably. Further, since the press-contact terminal is held by the terminal fixing portion of the insulating frame, the connection portion between the neutral wires can be reliably held on the stator (via the insulating frame).
【0018】第7の手段は、第1乃至第3のいずれかの
手段において、前記固定子に、各磁極歯へコイルを巻線
するための絶縁枠が取り付けられ、この絶縁枠に、前記
中性線における接続部分の前後の部分を保持するための
中性線保持部が形成されているものである。According to a seventh aspect, in any one of the first to third aspects, an insulating frame for winding a coil around each magnetic pole tooth is attached to the stator, and the insulating frame is A neutral wire holding portion for holding portions before and after the connection portion in the sex wire is formed.
【0019】この第7の手段によれば、第1乃至第3の
いずれかの手段において、絶縁枠の中性線保持部によっ
て、中性線同士の接続部分を(絶縁枠を介して)固定子
に対して所定の位置に保持することができる。According to the seventh means, in any one of the first to third means, the connecting portion between the neutral wires is fixed (via the insulating frame) by the neutral wire holding portion of the insulating frame. It can be held in position relative to the child.
【0020】第8の手段は、第1乃至第3のいずれかの
手段において、前記固定子に、各磁極歯へコイルを巻線
するための絶縁枠が取り付けられ、この絶縁枠は、前記
固定子の各磁極歯に対応して前記固定子の周方向に間隔
を置いて形成された、前記固定子の端部より突出する複
数の突出部を有し、隣り合う前記突出部同士の間におい
て、互いに接続すべき前記中性線を並べて配置すると共
に、これらの中性線同士を圧着端子によって接続したも
のである。According to an eighth aspect, in any one of the first to third aspects, an insulating frame for winding a coil around each magnetic pole tooth is attached to the stator, and the insulating frame is fixed to the fixed frame. A plurality of protrusions formed at intervals in the circumferential direction of the stator corresponding to the respective magnetic pole teeth of the stator, and having a plurality of protrusions protruding from an end of the stator, between the adjacent protrusions The neutral wires to be connected to each other are arranged side by side, and these neutral wires are connected to each other by crimp terminals.
【0021】第9の手段は、第8の手段において、前記
中性線同士の接続部分が、周方向に隣り合うコイル同士
の境界部分に対応して配置されているものである。According to a ninth aspect, in the eighth aspect, a connection portion between the neutral wires is arranged corresponding to a boundary portion between coils adjacent in the circumferential direction.
【0022】第10の手段は、第8の手段において、前
記中性線同士の接続部分が、前記絶縁枠における複数の
突出部の包絡線上に配置されているものである。According to a tenth aspect, in the eighth aspect, a connection portion between the neutral wires is arranged on an envelope of a plurality of protrusions in the insulating frame.
【0023】第11の手段は、第2の手段において、前
記固定子は各相毎に2極のコイルを有し、前記回転子は
4極の磁極を有すると共に、前記固定子に、各磁極歯へ
コイルを巻線するための絶縁枠が取り付けられ、この絶
縁枠は、前記固定子の各磁極歯に対応して前記固定子の
周方向に間隔を置いて形成された、前記固定子の端部よ
り突出する複数の突出部を有し、前記固定子の各相を構
成する2極ずつのコイルにおいて、一方の極のコイルの
巻終わり端から延びる前記渡り線が、前記絶縁枠の突出
部において折返されて、他方の極のコイルの巻始め端に
繋がるように構成されているものである。Eleventh means is the second means, wherein the stator has a two-pole coil for each phase, the rotor has four magnetic poles, and the stator has each magnetic pole. An insulating frame for winding a coil around the teeth is attached, and the insulating frame is formed at intervals in the circumferential direction of the stator corresponding to each magnetic pole tooth of the stator. In the case of a two-pole coil having a plurality of protruding portions protruding from an end portion and constituting each phase of the stator, the crossover wire extending from a winding end end of one of the coils is formed by a protrusion of the insulating frame. It is configured to be folded back at the portion and to be connected to the winding start end of the coil of the other pole.
【0024】第12の手段は、第11の手段において、
前記絶縁枠の突出部における前記渡り線の折返し部分の
前記固定子端部からの高さを、前記中性線同士の接続部
分の前記固定子端部からの高さと略同一としたものであ
る。The twelfth means is the eleventh means,
The height from the stator end of the folded portion of the crossover wire in the protrusion of the insulating frame is substantially the same as the height from the stator end of the connection portion between the neutral wires. .
【0025】[0025]
【発明の実施の形態】次に、図面を参照して本発明の実
施の形態について説明する。図1乃至図17は本発明に
よる圧縮機用電動機の実施の形態を示す図である。な
お、図1乃至図17に示す本発明の実施の形態におい
て、図18及び図19に示す一般的な圧縮機用電動機と
同一の構成部分には同一符号を付すと共に、適宜、図1
8及び図19を参照してて説明する。Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 17 are views showing an embodiment of a compressor motor according to the present invention. In addition, in the embodiment of the present invention shown in FIGS. 1 to 17, the same components as those of the general compressor motor shown in FIGS. 18 and 19 are denoted by the same reference numerals.
8 and FIG.
【0026】[第1の実施形態]まず、図1乃至図8並
びに図18及び図19により、本発明の第1の実施形態
について説明する。[First Embodiment] First, a first embodiment of the present invention will be described with reference to FIGS. 1 to 8 and FIGS. 18 and 19.
【0027】図18及び図19には、本発明が適用され
る一般的な圧縮機用電動機の固定子1が示されている。
この固定子1は、周方向に間隔を置いて配置された複数
(この場合は6極)の磁極歯12と、これらの磁極歯1
2の外周側を連結する継鉄鉄心14とを有する固定子鉄
心10を備えている。この固定子鉄心10の各磁極歯1
2に対しては、3相星形結線のコイル2がそれぞれ(絶
縁枠3を介して)装着されている。FIGS. 18 and 19 show a stator 1 of a general compressor motor to which the present invention is applied.
The stator 1 includes a plurality of (in this case, six poles) magnetic pole teeth 12 arranged at intervals in the circumferential direction, and these magnetic pole teeth 1.
And a stator core 10 having a yoke core 14 connecting the outer peripheral sides of the stator core 2 and the stator core 10. Each magnetic pole tooth 1 of the stator core 10
2, three-phase star-connected coils 2 are mounted (via insulating frames 3).
【0028】次に、図1乃至図3には、本実施形態の圧
縮機用電動機の結線図が示されている。図1乃至図3
(特に図2)に示すように、本実施形態の圧縮機用電動
機の固定子1においては、各相毎に2極ずつの合計6極
のコイル2u〜2wが、3相星形に並列結線されてい
る。また、図4に示すように、この圧縮機用電動機は固
定子1内に同軸に配置された、4極の磁極を有する回転
子Rを備えている。Next, FIGS. 1 to 3 show connection diagrams of the compressor motor of the present embodiment. 1 to 3
As shown in FIG. 2 (particularly, FIG. 2), in the stator 1 of the compressor motor according to the present embodiment, the coils 2u to 2w having a total of six poles, two poles for each phase, are connected in parallel in a three-phase star. Have been. As shown in FIG. 4, the compressor motor includes a rotor R having four magnetic poles and arranged coaxially in the stator 1.
【0029】再び図1乃至図3に戻ると、U、V、Wの
3相について、それぞれ一対(2極)のコイル2u、2
v、2wが、固定子1の半径方向に対向して設けられ
(図1又は図3参照)、各相を構成する一対ずつのコイ
ル2u、2v、2wが、ぞれぞれ並列に結線されてい
る。Referring again to FIGS. 1 to 3, a pair (two-pole) coils 2u, 2u, 2
v, 2w are provided in the radial direction of the stator 1 (see FIG. 1 or FIG. 3), and a pair of coils 2u, 2v, 2w constituting each phase are connected in parallel, respectively. ing.
【0030】そして、固定子1における3相のうちV相
のコイル2vからの中性線9vに対して、U相とW相の
コイル2u,2wからの中性線9u,9wがそれぞれ1
箇所ずつ20uv,20vwで接続されている。The neutral wires 9u and 9w from the U-phase and W-phase coils 2u and 2w respectively correspond to the neutral wire 9v from the V-phase coil 2v among the three phases in the stator 1.
The connections are made at 20 uv and 20 vw for each location.
【0031】ここで図4に示すように、固定子1の各磁
極歯12に対してコイル2u〜2wが、絶縁枠3を介し
て直接巻線されている。また、図1又は図3に示すよう
に、各相を構成する一対ずつのコイル(2u,2u)〜
(2w,2w)間が連続して巻線されている。そして、
このように連続して巻線された一対ずつのコイル(2
u,2u)〜(2w,2w)間の渡り線が各中性線9u
〜9wを構成している。As shown in FIG. 4, coils 2 u to 2 w are wound directly on the respective magnetic pole teeth 12 of the stator 1 via the insulating frame 3. Further, as shown in FIG. 1 or FIG. 3, a pair of coils (2u, 2u) to
(2w, 2w) is continuously wound. And
A pair of coils (2
u, 2u) to (2w, 2w) are each neutral line 9u.
To 9w.
【0032】これらの中性線(渡り線)9u〜9wは、
固定子1の軸線方向に対して、各相のコイル2u〜2w
からの口出し線8u〜8w(図1乃至図3参照)とは反
対側に配置されている。すなわち、各相のコイル2u〜
2wからの口出し線8u〜8wは、固定子1に対して図
4又は図5に示すのとは反対の側から引き出されるよう
になっている。なお、図3は、口出し線8u〜8w配置
側を実線で示し、中性線(渡り線)9u〜9w配置側を
破線で示すことにより、口出し線8u〜8w配置側から
固定子1を見た状態を表している。The neutral wires (crossover wires) 9u to 9w are
The coils 2u to 2w of each phase with respect to the axial direction of the stator 1.
Are arranged on the side opposite to the lead lines 8u to 8w (see FIGS. 1 to 3). That is, the coils 2u to
The lead lines 8u to 8w from 2w are drawn from the side opposite to that shown in FIG. 4 or 5 with respect to the stator 1. In FIG. 3, the stator 1 is viewed from the side where the lead wires 8u to 8w are arranged by indicating the side where the lead wires 8u to 8w are arranged by solid lines and the side where the neutral wires (crossover lines) 9u to 9w are arranged by broken lines. It represents the state where it was put.
【0033】次に、固定子1の上記磁極歯12および固
定子1に取り付けられた上記絶縁枠3について詳細に説
明する。図6に示すように、各磁極歯12は、継鉄鉄心
14から半径方向内側へ延びる主杆部12aと、この主
杆部12aの先端側に形成された内周部12bとを有し
ている。この内周部12bは、上記ロータR(図4参
照)の外周に沿うようにして、主杆部12aの両側に広
がっている。Next, the magnetic pole teeth 12 of the stator 1 and the insulating frame 3 attached to the stator 1 will be described in detail. As shown in FIG. 6, each magnetic pole tooth 12 has a main rod portion 12a extending radially inward from the yoke core 14, and an inner peripheral portion 12b formed on the distal end side of the main rod portion 12a. I have. The inner peripheral portion 12b extends on both sides of the main rod portion 12a along the outer periphery of the rotor R (see FIG. 4).
【0034】そして、固定子鉄心10における継鉄鉄心
14と各磁極歯12とでほぼ囲まれた部分(いわゆる巻
線スロット)16の内面を覆うようにして、絶縁枠3が
取り付けられている。すなわち、絶縁枠3は、各磁極歯
12の主杆部12aを覆う中空ウエブ部30と、各磁極
歯12の内周部12b外側を覆う内周フランジ部31
と、継鉄鉄心14の内側を覆う外周フランジ部32とを
有している。そして、図4、図8及び図19に示すよう
に、この絶縁枠3を介して各磁極歯12(の主杆部12
a)の周囲にコイル2u〜2wが巻線されている。The insulating frame 3 is mounted so as to cover the inner surface of a portion (so-called winding slot) 16 of the stator core 10 substantially surrounded by the yoke core 14 and the magnetic pole teeth 12. That is, the insulating frame 3 includes a hollow web portion 30 that covers the main rod portion 12a of each magnetic pole tooth 12, and an inner peripheral flange portion 31 that covers the outer peripheral portion 12b of each magnetic pole tooth 12.
And an outer peripheral flange portion 32 that covers the inside of the yoke core 14. Then, as shown in FIGS. 4, 8 and 19, each magnetic pole tooth 12 (the main rod 12
The coils 2u to 2w are wound around a).
【0035】次に、図4及び図5に示すように、この絶
縁枠3は、固定子1の各磁極歯12に対応して固定子1
の周方向に間隔を置いて形成された6対の突出部33を
有している。これらの突出部33は、上記外周フランジ
部32上から(図4参照)、固定子1の端部1aより外
方へ突出して(図5参照)設けられている。Next, as shown in FIGS. 4 and 5, the insulating frame 3 corresponds to each magnetic pole tooth 12 of the stator 1.
Has six pairs of protrusions 33 formed at intervals in the circumferential direction. These protruding portions 33 are provided so as to protrude outward from the end portion 1a of the stator 1 (see FIG. 5) from above the outer peripheral flange portion 32 (see FIG. 4).
【0036】そして、(周方向に隣り合う磁極歯12に
対応した)突出部33同士の間において、互いに接続す
べき2本ずつの中性線(9u,9v)、(9v,9w)
を並べて配置すると共に、これらの中性線(9u,9
v)、(9v,9w)同士をそれぞれ接続20uv,2
0vwしている。この場合、中性線9u〜9w同士の接
続部分20uv及び20vwはそれぞれ、周方向に隣り
合うコイル2u,2v及び2w,2u同士の境界部分に
対応して配置されている。Then, between the protruding portions 33 (corresponding to the magnetic pole teeth 12 adjacent in the circumferential direction), two neutral wires (9u, 9v) and (9v, 9w) to be connected to each other are to be connected to each other.
And the neutral lines (9u, 9u)
v) and (9v, 9w) are connected to each other 20uv, 2
0vw. In this case, the connection portions 20uv and 20vw between the neutral wires 9u to 9w are respectively arranged corresponding to the boundary portions between the coils 2u and 2v and 2w and 2u adjacent in the circumferential direction.
【0037】ここで、中性線9u〜9w同士の接続は、
図7に示すように圧着端子40を用いて成されている。
この圧着端子40は、接続前において図8に示すよう
に、開口部40aを有した略U字状の横断面形状をな
し、その内面側に凹凸部40bが形成されている。そし
て、この圧着端子40は、専用の工具又は装置によって
かしめることで、図7に示すように、接続すべき2本の
中性線9u〜9wの周囲に圧着されると同時に、その凹
凸部40bによって中性線9u〜9wの被覆を破って当
該中性線9u〜9w同士を導通させるようになってい
る。Here, the connection between the neutral wires 9u to 9w is as follows.
As shown in FIG. 7, this is achieved by using crimp terminals 40.
As shown in FIG. 8, before the connection, the crimp terminal 40 has a substantially U-shaped cross section having an opening 40a, and an uneven portion 40b is formed on the inner surface thereof. Then, the crimp terminal 40 is crimped around the two neutral wires 9u to 9w to be connected as shown in FIG. The coating of the neutral wires 9u to 9w is broken by 40b to make the neutral wires 9u to 9w conductive.
【0038】次に、図5に示すように、絶縁枠3の各突
出部33には、中性線9u〜9wを保持するための中性
線保持部36が形成されている。各中性線保持部36
は、突出部33の外周側に形成された溝部35と、この
溝部35の上下両側から外周方向に突出した一対の突起
部34(図4も参照)とによって構成されている。そし
て、図4及び図5に示すように、中性線9u〜9wにお
ける接続部分20uv,20vwの前後の部分は特に、
中性線保持部36の一対の突起部34によって確実に保
持されるようになっている。Next, as shown in FIG. 5, a neutral wire holding portion 36 for holding neutral wires 9u to 9w is formed on each projecting portion 33 of the insulating frame 3. Neutral wire holder 36
Is formed by a groove 35 formed on the outer peripheral side of the protruding portion 33 and a pair of protruding portions 34 (see also FIG. 4) protruding from both upper and lower sides of the groove 35 in the outer peripheral direction. Then, as shown in FIGS. 4 and 5, the portions before and after the connection portions 20uv and 20vw in the neutral wires 9u to 9w are particularly
The pair of projections 34 of the neutral wire holding portion 36 reliably hold the neutral wire.
【0039】ここで図4に示すように、各中性線(渡り
線)9u〜9wは、絶縁枠3における複数の突出部33
の外側に沿って、これらの突出部33の包絡線を成すよ
うに引き回されている。従って、中性線同士の接続部分
20uv,20vwも、絶縁枠3における複数の突出部
33の包絡線上に配置されている。As shown in FIG. 4, each of the neutral wires (crossover wires) 9u to 9w is connected to a plurality of projecting portions 33 on the insulating frame 3.
Along the outer side of the projection 33 to form an envelope of these projections 33. Therefore, the connection portions 20uv and 20vw between the neutral wires are also arranged on the envelope of the plurality of protrusions 33 in the insulating frame 3.
【0040】次に、図4及び図5に示すように、固定子
1の各相を構成する2極ずつのコイル2u、2v、2w
において、一方の極のコイル2u,2v,2wの巻終わ
り端7u,7v,7wから延びる中性線(渡り線)9
u,9v,9wが、絶縁枠3の突出部33において折返
されて、他方の極のコイル2u,2v,2wの巻始め端
6u,6v,6wに繋がるように構成されている。Next, as shown in FIGS. 4 and 5, two-pole coils 2u, 2v, 2w constituting each phase of the stator 1 are formed.
, The neutral wire (crossover wire) 9 extending from the winding end ends 7u, 7v, 7w of the coils 2u, 2v, 2w of one pole
u, 9v, 9w are folded back at the protruding portion 33 of the insulating frame 3 and are connected to the winding start ends 6u, 6v, 6w of the other pole coils 2u, 2v, 2w.
【0041】この場合、絶縁枠3の突出部33における
中性線(渡り線)9u〜9wの折返し部分の固定子端部
1aからの高さは、中性線9u〜9w同士の接続部分2
0uv,20vwの固定子端部1aからの高さと略同一
である(図5参照)。In this case, the height of the folded portions of the neutral wires (crossover wires) 9u to 9w in the projecting portion 33 of the insulating frame 3 from the stator end 1a is equal to the connecting portion 2 of the neutral wires 9u to 9w.
The height from the stator end 1a is 0uv, 20vw (see FIG. 5).
【0042】なお、本実施形態において、固定子1にお
けるV相のコイル2vからの中性線9vに対して、U相
とW相のコイル2u,2wからの中性線9u,9wをそ
れぞれ1箇所ずつで接続する場合について説明したが、
本発明はこれに限られるものではなく、固定子1におけ
る3相のうち任意の1相のコイルからの中性線に対し
て、他の2相のコイルからの中性線をそれぞれ1箇所ず
つで接続すればよい。In the present embodiment, the neutral wires 9u and 9w from the U-phase and W-phase coils 2u and 2w are respectively set to 1 with respect to the neutral wire 9v from the V-phase coil 2v in the stator 1. Although the case where connection is made by each part has been described,
The present invention is not limited to this, and the neutral wire from any one of the three phases of the stator 1 is connected to the neutral wire from the other two-phase coils one by one. You just need to connect.
【0043】すなわち、U相のコイル2uからの中性線
9uに対して、V相とW相のコイル2v,2wからの中
性線9v,9wをそれぞれ1箇所ずつで接続してもよ
く、またW相のコイル2wからの中性線9wに対して、
U相とV相のコイル2u,2vからの中性線9u,9v
をそれぞれ1箇所ずつで接続してもよい。That is, the neutral wires 9v and 9w from the V-phase and W-phase coils 2v and 2w may be connected to the neutral wire 9u from the U-phase coil 2u at one point each. Also, for the neutral wire 9w from the W-phase coil 2w,
Neutral wires 9u, 9v from U-phase and V-phase coils 2u, 2v
May be connected at one place.
【0044】次に、このような構成よりなる本実施形態
の作用効果について説明する。本実施形態によれば、固
定子1における3相のうち任意の1相のコイル2u〜2
wからの中性線9u〜9wに対して、他の2相のコイル
2u〜2wからの中性線9u〜9wをそれぞれ1箇所ず
つで接続することで、3相星形結線における中性点が形
成される。Next, the operation and effect of this embodiment having the above configuration will be described. According to the present embodiment, any one of the coils 2u to 2
The neutral points 9u to 9w from the other two-phase coils 2u to 2w are connected to the neutral lines 9u to 9w at one point, respectively. Is formed.
【0045】すなわち、合計2箇所の接続部分でそれぞ
れ2本ずつの中性線9u〜9w同士を接続することによ
って当該中性点が形成されるので、従来より少ない本数
の中性線同士の接続で中性点を形成できる。このため、
固定子1における結線が容易で、信頼性に優れ、かつ低
コストな圧縮機用電動機を提供することが可能となる。That is, the neutral point is formed by connecting two neutral wires 9u to 9w each at a total of two connecting portions, so that a smaller number of neutral wires than the conventional one are connected. Can form a neutral point. For this reason,
It is possible to provide a compressor motor that can be easily connected to the stator 1 and that is excellent in reliability and low in cost.
【0046】この場合、中性線9u〜9w同士の接続は
圧着端子40を用いて成されているので、溶接や半田付
け等による場合に比べて、極めて容易かつ確実に接続を
行うことができる。In this case, since the connection between the neutral wires 9u to 9w is made by using the crimp terminal 40, the connection can be made extremely easily and reliably as compared with the case of welding or soldering. .
【0047】また、絶縁枠3の各突出部33に、中性線
9u〜9wを保持するための中性線保持部36が形成さ
れているので、当該中性線保持部36によって、中性線
9u〜9w同士の接続部分を(絶縁枠3を介して)固定
子1に対して所定の位置に保持することができる。Further, since the neutral wire holding portions 36 for holding the neutral wires 9u to 9w are formed on the respective projecting portions 33 of the insulating frame 3, the neutral wire holding portions 36 allow the neutral wire holding portions 36 to neutralize the neutral wires. The connecting portion between the wires 9u to 9w can be held at a predetermined position with respect to the stator 1 (via the insulating frame 3).
【0048】[第2の実施形態]次に、図9乃至図11
により本発明の第2の実施形態について説明する。本実
施形態は、図9乃至図11に示すように、上記圧着端子
40に代えて、絶縁枠3に固定された圧接端子42を用
いて中性線9u〜9w同士の接続を行うようにした点で
上記第1の実施形態と異なり、その他の構成は図1乃至
8に示す上記第1の実施形態と同様である。[Second Embodiment] Next, FIGS.
The second embodiment of the present invention will be described with reference to FIG. In the present embodiment, as shown in FIGS. 9 to 11, the neutral wires 9u to 9w are connected to each other by using a press contact terminal 42 fixed to the insulating frame 3 instead of the crimp terminal 40. The third embodiment is different from the first embodiment in that the remaining structure is the same as that of the first embodiment shown in FIGS.
【0049】具体的には、図9乃至図11に示すよう
に、上記絶縁枠3に、各接続部分20uv,20vwに
対応した端子固定部37が形成されている。この端子固
定部37は、固定子1の外周方向に突出した上下一対の
保持板部材38を有し、これらの一対の保持板部材38
同士の間で圧接端子42を保持している。なお、一対の
保持板部材38の先端部は、下記のような中性線9u〜
9wの挿入を容易にするために、テーパ状に形成されて
いる。Specifically, as shown in FIGS. 9 to 11, terminal fixing portions 37 corresponding to the connection portions 20uv and 20vw are formed on the insulating frame 3. The terminal fixing portion 37 has a pair of upper and lower holding plate members 38 protruding in the outer peripheral direction of the stator 1, and the pair of holding plate members 38.
The press contact terminals 42 are held between them. The tip portions of the pair of holding plate members 38 have neutral wires 9 u to 9
It is formed in a tapered shape to facilitate insertion of 9w.
【0050】この圧接端子42は、図10及び図11に
示すように、開口部42aを有した略U字状の横断面形
状をなし、その内面側に横断面方向に延びる複数の刃状
リブ42bが形成されている。そして、この圧接端子4
2は、その開口部42aから接続すべき2本の中性線9
u〜9wを順次圧入することにより、当該中性線9u〜
9wを固定すると共に、各刃状リブ42bによって中性
線9u〜9wの被覆を破って当該中性線9u〜9w同士
を導通させるようになっている。As shown in FIGS. 10 and 11, the press contact terminal 42 has a substantially U-shaped cross section having an opening 42a, and a plurality of blade-shaped ribs extending in the cross section on the inner surface side. 42b is formed. And this press contact terminal 4
2 are two neutral wires 9 to be connected from the opening 42a.
by press-fitting the neutral wires 9u to 9w sequentially.
9w is fixed, and the coating of the neutral wires 9u to 9w is broken by the respective blade-shaped ribs 42b, so that the neutral wires 9u to 9w are electrically connected to each other.
【0051】次に、このような構成よりなる本実施形態
の作用効果について説明する。本実施形態によれば、圧
接端子42に対してその開口部42aから中性線9u〜
9wを圧入するだけで、当該中性線9u〜9w同士の接
続を成すことができるので、極めて容易かつ確実に接続
を行うことができる。また、絶縁枠3の端子固定部37
によって当該圧接端子42が保持されるので、中性線9
u〜9w同士の接続部分20uv,20vwを(絶縁枠
3を介して)固定子1に対して確実に保持することがで
きる。Next, the operation and effect of this embodiment having the above configuration will be described. According to the present embodiment, the neutral terminals 9 u to 9 u are connected to the press contact terminal 42 from the opening 42 a thereof.
Since the neutral wires 9u to 9w can be connected to each other simply by press-fitting the 9w, the connection can be made extremely easily and reliably. Further, the terminal fixing portion 37 of the insulating frame 3
The pressure contact terminal 42 is held by the
The connecting portions 20uv and 20vw between u to 9w can be reliably held on the stator 1 (via the insulating frame 3).
【0052】[第3の実施形態]次に、図12及び図1
3により本発明の第3の実施形態について説明する。本
実施形態は、図12及び図13に示すように、各相を構
成する一対ずつのコイル2u、2v、2wが、ぞれぞれ
直列に結線されている点で上記第1の実施形態と異な
り、その他の構成は図1乃至図8に示す上記第1の実施
形態と略同様である。[Third Embodiment] Next, FIGS.
3, a third embodiment of the present invention will be described. This embodiment differs from the first embodiment in that a pair of coils 2u, 2v, 2w constituting each phase are connected in series, as shown in FIGS. The other configuration is different from that of the first embodiment shown in FIGS. 1 to 8.
【0053】そして、本実施形態の場合には、図12及
び図13に示すように、固定子1における3相のうちW
相のコイル2wからの中性線9wに対して、U相とV相
のコイル2u,2vからの中性線9u,9vがそれぞれ
1箇所ずつ20uw,20vw’で接続されている。In the case of the present embodiment, as shown in FIGS.
The neutral wires 9u and 9v from the U-phase and V-phase coils 2u and 2v are connected to the neutral wire 9w from the phase coil 2w at 20uw and 20vw ', respectively.
【0054】なお、本実施形態においても、上記の場合
に限らず、固定子1における3相のうち任意の1相のコ
イルからの中性線に対して、他の2相のコイルからの中
性線をそれぞれ1箇所ずつで接続すればよい。すなわ
ち、U相のコイル2uからの中性線9uに対して、V相
とW相のコイル2v,2wからの中性線9v,9wをそ
れぞれ1箇所ずつで接続してもよく、またV相のコイル
2vからの中性線9vに対して、U相とW相のコイル2
u,2wからの中性線9u,9wをそれぞれ1箇所ずつ
で接続してもよい。The present embodiment is not limited to the above case, and the neutral wire from any one of the three phase coils in the stator 1 is replaced with the neutral wire from the other two phase coils. What is necessary is just to connect each sex wire at one place. That is, neutral wires 9v and 9w from V-phase and W-phase coils 2v and 2w may be connected to neutral wire 9u from U-phase coil 2u at one point each. U-phase and W-phase coils 2
Neutral wires 9u and 9w from u and 2w may be connected at one point each.
【0055】そして、本実施形態の場合も、固定子1に
おける3相のうち任意の1相のコイル2u〜2wからの
中性線9u〜9wに対して、他の2相のコイル2u〜2
wからの中性線9u〜9wをそれぞれ1箇所ずつで接続
することで、3相星形結線における中性点が形成される
ので、上記第1の実施形態と同様、従来より少ない本数
の中性線同士の接続で中性点を形成できる。このため、
固定子1における結線が容易で、信頼性に優れ、かつ低
コストな圧縮機用電動機を提供することが可能となる。Also in the case of the present embodiment, the neutral wires 9u to 9w from the arbitrary one-phase coils 2u to 2w among the three phases in the stator 1 are replaced with the other two-phase coils 2u to 2w.
The neutral points in the three-phase star connection are formed by connecting the neutral lines 9u to 9w from w at one place, respectively. A neutral point can be formed by connecting the sex wires. For this reason,
It is possible to provide a compressor motor that can be easily connected to the stator 1 and that is excellent in reliability and low in cost.
【0056】[第4の実施形態]次に、図14乃至図1
6により本発明の第4の実施形態について説明する。本
実施形態は、図14乃至図16に示すように、3相のコ
イル2u〜2wからの中性線同士を1箇所で接続した点
で上記第1の実施形態と異なり、その他の構成は図1乃
至図6に示す上記第1の実施形態と略同様である。[Fourth Embodiment] Next, FIGS.
6, a fourth embodiment of the present invention will be described. This embodiment is different from the first embodiment in that neutral wires from the three-phase coils 2u to 2w are connected at one place as shown in FIGS. This is substantially the same as the first embodiment shown in FIGS.
【0057】そして、本実施形態の場合には、図14及
び図15に示すように、周方向に300度離れた位置
の、互いに異なる相を構成する2極のコイル(2v,2
u)、(2w,2v)、(2u,2w)間が、それぞれ
連続して巻線されている。この場合、連続して巻線され
た2極ずつのコイル(2v,2u)、(2w,2v)、
(2u,2w)間の渡り線をそれぞれ9vu、9wv、
9uwとすると、U、V、Wの各相のコイル2u,2
v,2wからの中性線は、それぞれ2本ずつの渡り線
(9vu,9uw)、(9vu,9wv)、(9wv,
9uw)によって構成されている。In the case of this embodiment, as shown in FIGS. 14 and 15, two-pole coils (2v, 2
u), (2w, 2v), and (2u, 2w) are continuously wound. In this case, two-pole coils (2v, 2u), (2w, 2v) continuously wound,
Crossover lines between (2u, 2w) are 9vu, 9wv,
Assuming that 9uw, the coils 2u, 2 of each phase of U, V, W
Neutral lines from v and 2w are respectively two crossovers (9vu, 9uw), (9vu, 9wv), (9wv,
9uw).
【0058】そして、3相のコイル2u〜2wからの中
性線を構成する渡り線9vu、9wv、9uw同士が1
箇所20uvwで接続されている。図16に示すよう
に、この中性線(渡り線)9vu、9wv、9uw同士
の接続は、図8に示したのと同様の圧着端子40を用い
て行われている。The connecting wires 9vu, 9wv, and 9uw constituting the neutral wire from the three-phase coils 2u to 2w are 1
They are connected at a location 20uvw. As shown in FIG. 16, the connection between the neutral wires (crossover wires) 9vu, 9wv, and 9uw is performed using the same crimp terminal 40 as shown in FIG.
【0059】次に、このような構成よりなる本実施形態
の作用効果について説明する。本実施形態によれば、3
相のコイル2u〜2wからの中性線を構成する合計3本
の渡り線9vu、9wv、9uw同士を1箇所で接続す
ることで、3相星形結線における中性点が形成されるの
で、従来より少ない本数の中性線9vu、9wv、9u
w同士の接続で中性点を形成できる。このため、固定子
1における結線が容易で、信頼性に優れ、かつ低コスト
な圧縮機用電動機を提供することが可能となる。Next, the operation and effect of this embodiment having the above configuration will be described. According to the present embodiment, 3
By connecting three crossover wires 9vu, 9wv, and 9uw in total at one location, which form a neutral wire from the phase coils 2u to 2w, a neutral point in the three-phase star connection is formed. Neutral lines 9vu, 9wv, 9u with fewer lines than before
A neutral point can be formed by connecting w with each other. For this reason, it is possible to provide a compressor motor that is easy to connect to the stator 1 and that is excellent in reliability and low in cost.
【0060】なお、図14において、周方向に300度
離れた位置の、互いに異なる相を構成する2極のコイル
(2v,2u)、(2w,2v)、(2u,2w)間が
それぞれ連続して巻線されている場合について説明した
が、本発明はこれに限られるものではない。すなわち、
互いに異なる相であるか同一の相であるかを問わず、固
定子1における任意の2極のコイル2u〜2w間を連続
して巻線するものであればよい。In FIG. 14, the two-pole coils (2v, 2u), (2w, 2v), and (2u, 2w), which are different from each other at a position 300 degrees in the circumferential direction, are continuous. Although the case where the coil is wound is described, the present invention is not limited to this. That is,
Regardless of whether the phases are different from each other or the same phase, any coils may be used as long as they can be continuously wound between any two-pole coils 2u to 2w in the stator 1.
【0061】ここで、本実施形態において、図16に示
す上記圧着端子40による接続に代えて、図17に示す
ような圧接端子45と端子固定部44との組合せによる
接続を用いてもよい。図17において、上記絶縁枠3上
に、上方へ開口した端子固定部44が形成されている。
この端子固定部44は、3本の渡り線9vu、9wv、
9uwを平行に並べて受け入れる3対の溝部44aと、
各渡り線9vu、9wv、9uwの下側に当接する3つ
の突起部44bとを有している。Here, in this embodiment, instead of the connection by the crimp terminal 40 shown in FIG. 16, a connection by a combination of the press contact terminal 45 and the terminal fixing portion 44 as shown in FIG. 17 may be used. In FIG. 17, a terminal fixing portion 44 which is open upward is formed on the insulating frame 3.
This terminal fixing part 44 has three crossovers 9vu, 9wv,
3 pairs of grooves 44a for receiving 9 uw in parallel,
It has three projecting portions 44b abutting on the lower sides of the crossovers 9vu, 9wv, 9uw.
【0062】また、圧接端子45は、端子固定部44の
溝部44aに対応した3つの溝部(開口部)45aを有
している。この場合、端子固定部44に対して圧着端子
45を押し込むことにより、圧接端子45の各溝部45
aに対して渡り線9vu、9wv、9uwを圧入すると
共に、渡り線9vu、9wv、9uwの被覆を破って当
該中性線同士を導通させるようになっている。The press contact terminal 45 has three grooves (openings) 45 a corresponding to the grooves 44 a of the terminal fixing part 44. In this case, by pressing the crimp terminal 45 into the terminal fixing portion 44, each groove 45 of the press contact terminal 45 is pressed.
The crossover wires 9vu, 9wv, 9uw are press-fitted into a, and the coating of the crossover wires 9vu, 9wv, 9uw is broken to conduct the neutral wires.
【0063】なお、以上の実施の形態において、各相毎
に2極ずつの合計6極のコイル2u〜2w(および磁極
歯12)が設けられる場合について説明したが、基本的
には各相毎に3極以上の合計9極以上のコイル2u〜2
w(および磁極歯12)が設けられている場合にも、本
発明を適用することが可能である。In the above embodiment, a case has been described in which the coils 2u to 2w (and the magnetic pole teeth 12) having a total of 6 poles of 2 poles are provided for each phase. 3u or more coil 9u or more 2u ~ 2
The present invention can be applied to a case where w (and the magnetic pole teeth 12) are provided.
【0064】また、固定子1において、継鉄鉄心14と
各磁極歯12とが一体となった一体型の固定子鉄心10
を用いる場合について説明したが、継鉄鉄心14と各磁
極歯12とが組立式の別体となった分割型の固定子鉄心
を用いてもよい。In the stator 1, an integral stator core 10 in which the yoke core 14 and the magnetic pole teeth 12 are integrated
Has been described, but a split-type stator core in which the yoke core 14 and the magnetic pole teeth 12 are assembled separately from each other may be used.
【0065】なお、本明細書において、「圧着端子」の
語は、かしめ等による端子自身の比較的大きな変形によ
って線材同士の接続を行う端子部材を指し、「圧接端
子」の語は、線材の圧入によって端子自身の変形をほと
んど伴わずに線材同士の接続を行う端子部材を指してい
る。In this specification, the term “crimp terminal” refers to a terminal member that connects wires by relatively large deformation of the terminal itself due to caulking or the like. It refers to a terminal member that connects wires with almost no deformation of the terminal itself by press-fitting.
【0066】[0066]
【発明の効果】本発明によれば、2本または3本の中性
線同士を接続することで3相星形結線における中性点が
形成されるので、従来より少ない本数の中性線同士の接
続で中性点を形成できる。このため、固定子における結
線が容易で、信頼性に優れ、かつ低コストな圧縮機用電
動機を提供することが可能となる。According to the present invention, a neutral point in a three-phase star connection is formed by connecting two or three neutral wires to each other. The neutral point can be formed by the connection. For this reason, it is possible to provide a compressor motor that is easy to connect to the stator, has excellent reliability, and is low in cost.
【図1】本発明による圧縮機用電動機の第1の実施形態
における、固定子鉄心を含んだ結線図。FIG. 1 is a connection diagram including a stator core in a first embodiment of a compressor motor according to the present invention.
【図2】図1に示す結線図を単純化して示す模式的結線
図。FIG. 2 is a schematic connection diagram showing a simplified connection diagram shown in FIG. 1;
【図3】図1に示す圧縮機用電動機の巻線方向等を含ん
だ結線図。FIG. 3 is a connection diagram including a winding direction and the like of the compressor motor shown in FIG. 1;
【図4】図1に示す圧縮機用電動機の、中性線配置側か
ら見た平面図。FIG. 4 is a plan view of the compressor motor shown in FIG. 1 as viewed from a neutral wire arrangement side.
【図5】図1に示す圧縮機用電動機の中性線配置側を示
す部分立面図。FIG. 5 is a partial elevational view showing a neutral wire arrangement side of the compressor motor shown in FIG. 1;
【図6】図1に示す圧縮機用電動機の磁極歯および絶縁
枠の形状を、固定子鉄心の横断面で示す図。FIG. 6 is a diagram showing the shapes of magnetic pole teeth and an insulating frame of the compressor electric motor shown in FIG. 1 in a cross section of a stator core.
【図7】図5のX―X線断面で中性線同士の接続状態を
示す図。FIG. 7 is a diagram showing a connection state between neutral wires in a cross section taken along line XX of FIG. 5;
【図8】図7に示す圧着端子の斜視図。FIG. 8 is a perspective view of the crimp terminal shown in FIG. 7;
【図9】本発明による圧縮機用電動機の第2の実施形態
における絶縁枠の端子固定部を示すための、固定子の部
分平面図。FIG. 9 is a partial plan view of a stator for illustrating a terminal fixing portion of an insulating frame in a second embodiment of the compressor motor according to the present invention.
【図10】図9における絶縁枠の端子固定部を拡大して
示すための、図9のY方向矢示図。FIG. 10 is an enlarged view of a terminal fixing portion of the insulating frame in FIG.
【図11】図10のZ―Z線断面図。FIG. 11 is a sectional view taken along line ZZ of FIG. 10;
【図12】本発明による圧縮機用電動機の第3の実施形
態における、固定子鉄心を含んだ結線図。FIG. 12 is a connection diagram including a stator core in a third embodiment of the compressor motor according to the present invention.
【図13】図に示す結線図を単純化して示す模式的結線
図。FIG. 13 is a schematic connection diagram showing a simplified connection diagram shown in FIG.
【図14】本発明による圧縮機用電動機の第4の実施形
態における、固定子鉄心および巻線方向等を含んだ結線
図。FIG. 14 is a connection diagram including a stator core, a winding direction, and the like in a fourth embodiment of the compressor motor according to the present invention.
【図15】図14に示す結線図を単純化して示す模式的
結線図。FIG. 15 is a schematic connection diagram showing a simplified connection diagram shown in FIG. 14;
【図16】図14に示す圧縮機用電動機における、図8
に示す圧着端子を用いた場合の接続状態を示す、図7と
同様の図。FIG. 16 is a sectional view of the compressor motor shown in FIG. 14;
The figure similar to FIG. 7 which shows the connection state at the time of using the crimp terminal shown in FIG.
【図17】図14に示す圧縮機用電動機における中性線
同士の接続部分の他の例を示す斜視図。FIG. 17 is a perspective view showing another example of a connection portion between neutral wires in the compressor motor shown in FIG. 14;
【図18】本発明が適用される一般的な圧縮機用電動機
の固定子を示す平面図。FIG. 18 is a plan view showing a stator of a general compressor motor to which the present invention is applied.
【図19】図18に示す圧縮機用電動機の固定子の縦断
面図。19 is a longitudinal sectional view of a stator of the compressor electric motor shown in FIG.
【図20】従来の圧縮機用電動機における、固定子鉄心
を含んだ結線図。FIG. 20 is a connection diagram including a stator core in a conventional compressor motor.
R 回転子 1 固定子 10 固定子鉄心 12 磁極歯 14 継鉄鉄心 2u〜2w コイル 3 絶縁枠 33 突出部 36 中性線保持部 37,44 端子固定部 6u〜6w 巻始め端 7u〜7w 巻終わり端 8u〜8w 口出し線 9u〜9w 中性線(渡り線) 9vu、9wv、9uw 中性線(渡り線) 20uv,20vw 接続部分 20vw’,20uw 接続部分 20uvw 接続部分 40 圧着端子 42,45 圧接端子 R Rotor 1 Stator 10 Stator iron core 12 Magnetic pole teeth 14 Yoke iron core 2u to 2w Coil 3 Insulating frame 33 Protruding part 36 Neutral wire holding part 37,44 Terminal fixing part 6u to 6w Winding start end 7u to 7w Winding end End 8u-8w Lead wire 9u-9w Neutral wire (crossover wire) 9vu, 9wv, 9uw Neutral wire (crossover wire) 20uv, 20vw Connection portion 20vw ', 20uw Connection portion 20uvw Connection portion 40 Crimping terminal 42, 45 Pressure contact terminal
───────────────────────────────────────────────────── フロントページの続き (72)発明者 稲 葉 好 昭 静岡県富士市蓼原336 株式会社東芝富士 工場内 (72)発明者 深 川 勝 己 静岡県富士市蓼原336 株式会社東芝富士 工場内 (72)発明者 今 澤 和 基 静岡県富士市蓼原336 株式会社東芝富士 工場内 Fターム(参考) 5H603 AA03 AA09 BB01 BB07 BB12 CA01 CA05 CB02 CB12 CB17 CB19 CB24 CC05 CC11 CC17 CD21 CE01 EE04 EE13 5H604 AA05 BB01 BB14 CC01 CC05 CC15 CC16 QA01 QA04 QB01 QB03 QB12 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiaki Inaba, 336 Tatehara, Fuji, Shizuoka Prefecture, Toshiba Fuji Plant (72) Inventor Katsumi Fukagawa, 336 Tatehara, Fuji City, Shizuoka Prefecture, Toshiba Fuji Plant ( 72) Inventor Kazuki Imazawa 336 Tatehara, Fuji-shi, Shizuoka Prefecture F-term in Toshiba Fuji Factory (reference) CC05 CC15 CC16 QA01 QA04 QB01 QB03 QB12
Claims (12)
磁極歯を有すると共に、これらの磁極歯に対して3相星
形結線のコイルが直接巻線されており、 前記固定子における3相のうち任意の1相のコイルから
の中性線に対して、他の2相のコイルからの中性線をそ
れぞれ1箇所ずつで接続したことを特徴とする圧縮機用
電動機。1. A stator comprising a rotor and a stator, the stator having a plurality of circumferentially spaced magnetic pole teeth and a three-phase star connection with respect to the magnetic pole teeth. The coil is directly wound, and the neutral wire from any one of the three phases of the stator is connected to the neutral wire from the other two-phase coils at one point each. An electric motor for a compressor, comprising:
た複数極のコイルで構成し、当該複数極のコイル間を連
続して巻線すると共に、当該複数極のコイル間の渡り線
を前記中性線とすることを特徴とする請求項1記載の圧
縮機用電動機。2. The stator according to claim 1, wherein each phase of the stator comprises a plurality of pole coils connected in parallel to each other, and the plurality of pole coils are continuously wound, and a crossover wire between the plurality of pole coils is provided. 2. The electric motor for a compressor according to claim 1, wherein
磁極歯を有すると共に、これらの磁極歯に対して3相星
形結線のコイルが直接巻線されており、 前記固定子の各相を、互いに並列接続された複数極のコ
イルで構成し、前記固定子における任意の複数極のコイ
ル間を連続して巻線すると共に、当該複数極のコイル間
の渡り線を各相のコイルからの中性線とし、3相のコイ
ルからの中性線同士を1箇所で接続したことを特徴とす
る圧縮機用電動機。3. A stator, comprising: a rotor and a stator, the stator having a plurality of circumferentially spaced magnetic pole teeth, and a three-phase star connection with respect to the magnetic pole teeth. A coil is directly wound, and each phase of the stator is constituted by a multi-pole coil connected in parallel with each other, and continuously wound between arbitrary multi-pole coils in the stator, An electric motor for a compressor, wherein the crossover wires between the coils of the plurality of poles are neutral wires from the coils of each phase, and the neutral wires from the three-phase coils are connected at one place.
て、各相のコイルからの口出し線とは反対側に配置した
ことを特徴とする請求項1乃至3のいずれかに記載の圧
縮機用電動機。4. The apparatus according to claim 1, wherein the neutral wire of each phase is arranged on the opposite side to the lead wire from the coil of each phase with respect to the stator. An electric motor for a compressor as described in the above.
圧接端子を用いて成されていることを特徴とする請求項
1乃至3のいずれかに記載の圧縮機用電動機。5. The electric motor for a compressor according to claim 1, wherein the connection between the neutral wires is made by using a crimp terminal or a press contact terminal.
るための絶縁枠が取り付けられ、 この絶縁枠に、開口部を有した圧接端子を保持する端子
固定部が形成され、 前記中性線同士の接続は、前記圧接端子に対してその開
口部から当該中性線を圧入することにより成されている
ことを特徴とする請求項1乃至3のいずれかに記載の圧
縮機用電動機。6. An insulating frame for winding a coil around each magnetic pole tooth is attached to the stator, and a terminal fixing portion for holding a press-contact terminal having an opening is formed on the insulating frame. 4. The compressor according to claim 1, wherein the connection between the neutral wires is performed by press-fitting the neutral wire into the press contact terminal from an opening thereof. 5. Electric motor.
るための絶縁枠が取り付けられ、 この絶縁枠に、前記中性線における接続部分の前後の部
分を保持するための中性線保持部が形成されていること
を特徴とする請求項1乃至3のいずれかに記載の圧縮機
用電動機。7. An insulating frame for winding a coil around each magnetic pole tooth is attached to the stator, and a neutral for holding a portion before and after a connection portion of the neutral wire on the insulating frame. The electric motor for a compressor according to any one of claims 1 to 3, wherein a line holding portion is formed.
るための絶縁枠が取り付けられ、 この絶縁枠は、前記固定子の各磁極歯に対応して前記固
定子の周方向に間隔を置いて形成された、前記固定子の
端部より突出する複数の突出部を有し、 隣り合う前記突出部同士の間において、互いに接続すべ
き前記中性線を並べて配置すると共に、これらの中性線
同士を圧着端子によって接続したことを特徴とする請求
項1乃至3のいずれかに記載の圧縮機用電動機。8. An insulating frame for winding a coil around each magnetic pole tooth is attached to the stator, and the insulating frame is arranged in a circumferential direction of the stator corresponding to each magnetic pole tooth of the stator. It has a plurality of protrusions formed at intervals and protruding from an end of the stator, and between the adjacent protrusions, the neutral wires to be connected to each other are arranged and arranged. 4. The electric motor for a compressor according to claim 1, wherein the neutral wires are connected by crimp terminals.
り合うコイル同士の境界部分に対応して配置されている
ことを特徴とする請求項8記載の圧縮機用電動機。9. The electric motor for a compressor according to claim 8, wherein the connection portions of the neutral wires are arranged corresponding to the boundary portions of the coils adjacent in the circumferential direction.
枠における複数の突出部の包絡線上に配置されているこ
とを特徴とする請求項8記載の圧縮機用電動機。10. The electric motor for a compressor according to claim 8, wherein the connection portions of said neutral wires are arranged on an envelope of a plurality of projecting portions of said insulating frame.
し、前記回転子は4極の磁極を有すると共に、 前記固定子に、各磁極歯へコイルを巻線するための絶縁
枠が取り付けられ、 この絶縁枠は、前記固定子の各磁極歯に対応して前記固
定子の周方向に間隔を置いて形成された、前記固定子の
端部より突出する複数の突出部を有し、 前記固定子の各相を構成する2極ずつのコイルにおい
て、一方の極のコイルの巻終わり端から延びる前記渡り
線が、前記絶縁枠の突出部において折返されて、他方の
極のコイルの巻始め端に繋がるように構成されているこ
とを特徴とする請求項2記載の圧縮機用電動機。11. The stator has a two-pole coil for each phase, the rotor has four magnetic poles, and the stator has an insulation for winding a coil around each magnetic pole tooth. A frame is attached, and the insulating frame includes a plurality of protrusions formed at intervals in a circumferential direction of the stator corresponding to respective magnetic pole teeth of the stator and projecting from an end of the stator. In the two-pole coil constituting each phase of the stator, the crossover wire extending from the winding end of the one-pole coil is folded back at the protrusion of the insulating frame, and the other pole is connected to the other pole. The motor for a compressor according to claim 2, wherein the motor is configured to be connected to a winding start end of the coil.
の折返し部分の前記固定子端部からの高さが、前記中性
線同士の接続部分の前記固定子端部からの高さと略同一
であることを特徴とする請求項12記載の圧縮機用電動
機。12. The height of the folded portion of the crossover wire from the end of the stator at the protruding portion of the insulating frame is substantially the same as the height of the connection portion between the neutral wires from the end of the stator. The motor for a compressor according to claim 12, wherein
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11033207A JP2000232745A (en) | 1999-02-10 | 1999-02-10 | Compressor motor |
TW89100497A TW561668B (en) | 1999-02-10 | 2000-01-13 | Compressor motor |
CNB008036438A CN100442640C (en) | 1999-02-10 | 2000-02-07 | Motor |
PCT/JP2000/000655 WO2000048292A1 (en) | 1999-02-10 | 2000-02-07 | Motor |
MYPI20000432 MY128073A (en) | 1999-02-10 | 2000-02-09 | Motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11033207A JP2000232745A (en) | 1999-02-10 | 1999-02-10 | Compressor motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000232745A true JP2000232745A (en) | 2000-08-22 |
Family
ID=12380028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11033207A Pending JP2000232745A (en) | 1999-02-10 | 1999-02-10 | Compressor motor |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2000232745A (en) |
CN (1) | CN100442640C (en) |
MY (1) | MY128073A (en) |
TW (1) | TW561668B (en) |
WO (1) | WO2000048292A1 (en) |
Cited By (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002218689A (en) * | 2001-01-18 | 2002-08-02 | Denso Corp | Lead-out wire structure for phase parallel u-shape conductor sequentially connected y winding |
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JP2004515198A (en) * | 2000-11-30 | 2004-05-20 | コンパクト ダイナミクス ゲーエムベーハー | Stator for electric machine and manufacturing method thereof |
JP2002218689A (en) * | 2001-01-18 | 2002-08-02 | Denso Corp | Lead-out wire structure for phase parallel u-shape conductor sequentially connected y winding |
JP2002272023A (en) * | 2001-03-09 | 2002-09-20 | Hitachi Ltd | Permanent magnet rotating electric machine |
JP2005528075A (en) * | 2002-05-28 | 2005-09-15 | ヴァレオ エキプモン エレクトゥリク モトゥール | Alternator with stator with twisted starting point |
EP1713157A4 (en) * | 2004-02-06 | 2013-05-15 | Daikin Ind Ltd | Electric motor stator |
EP1713158A1 (en) * | 2004-02-06 | 2006-10-18 | Daikin Industries, Ltd. | Stator of motor |
EP1713157A1 (en) * | 2004-02-06 | 2006-10-18 | Daikin Industries, Ltd. | Electric motor stator |
EP1713158A4 (en) * | 2004-02-06 | 2012-08-29 | Daikin Ind Ltd | Stator of motor |
JP2007014043A (en) * | 2005-06-28 | 2007-01-18 | Oriental Motor Co Ltd | Stator structure of motor |
JP2007110848A (en) * | 2005-10-14 | 2007-04-26 | Odawara Engineering Co Ltd | Three-phase and nine-pole stator and winding method of stator coil thereof |
JP4704177B2 (en) * | 2005-10-14 | 2011-06-15 | 株式会社小田原エンジニアリング | Three-phase nine-pole stator and stator coil winding method |
JP2007202268A (en) * | 2006-01-25 | 2007-08-09 | Hitachi Appliances Inc | Motor |
JP2007267571A (en) * | 2006-03-30 | 2007-10-11 | Aisin Seiki Co Ltd | Stator core and split core thereof |
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JP2009089496A (en) * | 2007-09-28 | 2009-04-23 | Daikin Ind Ltd | Armature |
JP2009240119A (en) * | 2008-03-28 | 2009-10-15 | Daikin Ind Ltd | Stator, motor and compressor |
JP2011055653A (en) * | 2009-09-02 | 2011-03-17 | Sanko Kiki Co Ltd | Electric motor stator, and method for manufacturing the same |
JP4456173B1 (en) * | 2009-09-02 | 2010-04-28 | 三工機器株式会社 | Electric motor stator and manufacturing method thereof |
WO2011089749A1 (en) * | 2010-01-22 | 2011-07-28 | 日立オートモティブシステムズ株式会社 | Rotary electric device |
JP2011152000A (en) * | 2010-01-22 | 2011-08-04 | Hitachi Automotive Systems Ltd | Rotary electric machine |
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CN102714439A (en) * | 2010-01-22 | 2012-10-03 | 日立汽车系统株式会社 | Rotary electric device |
JP2011217478A (en) * | 2010-03-31 | 2011-10-27 | Kokusan Denki Co Ltd | Rotating electric machine, and manufacturing method thereof |
US8779644B2 (en) | 2010-03-31 | 2014-07-15 | Kokusan Denki Co., Ltd. | Rotating electrical machine and method for manufacturing a stator thereof |
JP2011250513A (en) * | 2010-05-24 | 2011-12-08 | Mitsubishi Electric Corp | Electric motor and compressor loaded with the same |
CN103190058A (en) * | 2010-10-27 | 2013-07-03 | 日立汽车系统株式会社 | Rotating electric machine |
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EP2941815B1 (en) * | 2013-02-01 | 2018-07-25 | Valeo Air Management UK Limited | A stator assembly for an electric supercharger |
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JP2013226048A (en) * | 2013-08-07 | 2013-10-31 | Asmo Co Ltd | Manufacturing method for stator |
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JP2015162985A (en) * | 2014-02-27 | 2015-09-07 | 日立工機株式会社 | Electric tool |
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WO2015146291A1 (en) * | 2014-03-28 | 2015-10-01 | 株式会社富士通ゼネラル | Insulator and brushless dc motor using same |
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DE102016223003A1 (en) * | 2016-04-29 | 2017-11-02 | Robert Bosch Gmbh | Stator for an electric machine and an electric machine with such a stator |
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JP2020068589A (en) * | 2018-10-24 | 2020-04-30 | 朝程工業股▲フン▼有限公司 | Method of manufacturing stator for brushless motor |
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Also Published As
Publication number | Publication date |
---|---|
CN100442640C (en) | 2008-12-10 |
MY128073A (en) | 2007-01-31 |
WO2000048292A1 (en) | 2000-08-17 |
CN1340237A (en) | 2002-03-13 |
TW561668B (en) | 2003-11-11 |
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