JP2018061389A - Stator of dynamo-electric machine - Google Patents

Stator of dynamo-electric machine Download PDF

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JP2018061389A
JP2018061389A JP2016198768A JP2016198768A JP2018061389A JP 2018061389 A JP2018061389 A JP 2018061389A JP 2016198768 A JP2016198768 A JP 2016198768A JP 2016198768 A JP2016198768 A JP 2016198768A JP 2018061389 A JP2018061389 A JP 2018061389A
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temperature sensor
stator
neutral wire
coil
wire
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竹原　明秀
Akihide Takehara
明秀 竹原
侑生 土屋
Yui Tsuchiya
侑生 土屋
勤 畠山
Tsutomu Hatakeyama
勤 畠山
智 白木
Satoshi Shiraki
智 白木
池辺　優
Masaru Ikebe
優 池辺
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TDK Corp
Toyota Motor Corp
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TDK Corp
Toyota Motor Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Abstract

PROBLEM TO BE SOLVED: To replace a temperature sensor while removing from the neutral line.SOLUTION: In a stator 1 of a dynamo-electric machine including a neutral line 10 connected with the neutral point of the stator coil 3 and having a U-shaped part 11 folded into U-shape, and a temperature sensor 20 for detecting the temperature of the neutral line 10, the temperature sensor 20 includes a body 22 being fitted to the U-shaped part 11 while embedding a thermistor element 21, and arms 23, 23 extending from the body 22 to embrace the legs 11a, 11a of the U-shaped part 11, respectively, and can be attached removably to the U-shaped part 11 when the arms 23, 23 deform elastically.SELECTED DRAWING: Figure 3

Description

本発明は、回転電機のステータに関し、特に、中性線の温度を検出する温度センサを備えたステータに関する。   The present invention relates to a stator for a rotating electrical machine, and more particularly to a stator including a temperature sensor that detects the temperature of a neutral wire.

回転電機は、ステータに巻装されるコイルに電流が流れると、コイルに熱が発生してコイル温度が上昇する。この温度上昇は、回転電機の各部に不具合を生じさせる可能性がある。特に、コイルに大電流が流れる場合、発熱が大きく温度が上昇するので、回転電機の温度を管理するためにコイルの温度が監視されている。   In a rotating electrical machine, when a current flows through a coil wound around a stator, heat is generated in the coil and the coil temperature rises. This temperature rise may cause problems in each part of the rotating electrical machine. In particular, when a large current flows through the coil, the temperature of the coil is monitored in order to manage the temperature of the rotating electrical machine because the heat generation is large and the temperature rises.

三相のコイルの中性点を構成する中性線は、コイルと電気的に接続されているので、コイルに流れる電流と略等しい電流が流れ、電流による発熱もコイルに近いものになる。このため、中性線に温度センサを当接して中性線の温度を検出している。また、中性線をＵ字形状に折り曲げて、このＵ字部に温度センサを挟み込んで、中性線と温度センサとを樹脂モールドにより一体化した埋込型の温度検出部が、例えば、特許文献１に記載されている。   Since the neutral wire constituting the neutral point of the three-phase coil is electrically connected to the coil, a current substantially equal to the current flowing through the coil flows, and the heat generated by the current is also close to the coil. For this reason, the temperature of the neutral wire is detected by contacting the temperature sensor with the neutral wire. Further, an embedded type temperature detection unit in which a neutral wire is bent into a U-shape, a temperature sensor is sandwiched between the U-shaped portion, and the neutral wire and the temperature sensor are integrated by a resin mold is disclosed in, for example, a patent. It is described in Document 1.

特開２０１３−２１９９６１号公報JP 2013-219961 A

特許文献１に記載の埋込型の温度検出部では、コイルの熱や振動等によって温度センサのリード線が断線や短絡した場合、温度センサ単体の交換が困難である。すなわち、温度センサと中性線とは樹脂モールドにより一体化されているので、温度センサのみを交換することは困難である。   In the embedded type temperature detection unit described in Patent Document 1, it is difficult to replace the temperature sensor alone when the lead wire of the temperature sensor is disconnected or short-circuited due to heat or vibration of the coil. That is, since the temperature sensor and the neutral wire are integrated by a resin mold, it is difficult to replace only the temperature sensor.

温度センサと中性線とが一体化された埋込型の温度検出部を交換することも考えられるが、中性線は溶接によってコイルに接続されていることから、温度センサと中性線とを一緒に交換することも困難である。さらに、温度センサや中性線の交換の手間を省くために、ステータ毎交換することも考えられるが、この場合には高額な修理費用が発生する。   Although it is conceivable to replace the embedded type temperature detection unit in which the temperature sensor and the neutral wire are integrated, the neutral wire is connected to the coil by welding. Are also difficult to exchange together. Furthermore, in order to save the trouble of replacing the temperature sensor and the neutral wire, it is conceivable to replace each stator, but in this case, an expensive repair cost is generated.

そこで、本発明では、温度センサを中性線から取り外して交換する回転電機のステータを提供することを目的とする。   Accordingly, an object of the present invention is to provide a stator for a rotating electrical machine in which a temperature sensor is removed from a neutral wire and replaced.

本発明の回転電機のステータは、ステータコイルの中性点に接続してＵ字状に折り曲げられたＵ字部を有する中性線と、前記中性線に当接して前記中性線の温度を検出する温度センサとを備える回転電機のステータであって、前記温度センサは、サーミスタ素子を収容し、前記Ｕ字部に嵌合する本体部と、前記本体部から前記Ｕ字部の各脚を抱き込むようにそれぞれ延出し、弾性を有する腕部とを備え、前記Ｕ字部に着脱可能であることを特徴とする。   The stator of the rotating electrical machine according to the present invention includes a neutral wire having a U-shaped portion connected to a neutral point of the stator coil and bent in a U-shape, and a temperature of the neutral wire in contact with the neutral wire. And a temperature sensor for detecting the temperature sensor, wherein the temperature sensor houses a thermistor element and is fitted to the U-shaped portion, and each leg of the U-shaped portion from the main body portion. And an elastic arm part, which can be attached to and detached from the U-shaped part.

本発明によれば、温度センサを中性線から容易に取り外して交換できる。   According to the present invention, the temperature sensor can be easily removed from the neutral wire and replaced.

ステータの概略構成図である。It is a schematic block diagram of a stator. 中性線の斜視図である。It is a perspective view of a neutral wire. 中性線と温度センサの斜視図である。It is a perspective view of a neutral wire and a temperature sensor. 温度センサの平面図である。It is a top view of a temperature sensor. 温度センサの図４のＡ方向から見た断面図である。It is sectional drawing seen from the A direction of FIG. 4 of a temperature sensor.

本実施形態における回転電機は、ハイブリッド車両や電動車両のモータジェネレータに使用される。図１に示すように、回転電機のステータ１は、ステータコア２と、ステータコア２に巻装されたステータコイル３とを備えている。ステータコア２は、円環状のヨーク２ａと、このヨーク２ａの内周面に周方向に等間隔に設けられた複数のティース（図面ではステータコイル３に隠れていて示されていない）とを備えている。各ティースには、図示しない絶縁部材を介して導線が巻回されている。   The rotating electrical machine in the present embodiment is used for a motor generator of a hybrid vehicle or an electric vehicle. As shown in FIG. 1, a stator 1 of a rotating electrical machine includes a stator core 2 and a stator coil 3 wound around the stator core 2. The stator core 2 includes an annular yoke 2a and a plurality of teeth (not shown hidden behind the stator coil 3 in the drawing) provided on the inner circumferential surface of the yoke 2a at equal intervals in the circumferential direction. Yes. A conductive wire is wound around each tooth via an insulating member (not shown).

ステータコイル３は、平角線からなる導線を集中巻することで構成される。平角線の表面には、隣接する平角線間の絶縁を確保するためにエナメル加工が施されている。ステータコイル３は、Ｗ相のコイル３Ｗ、Ｕ相のコイル３Ｕ、Ｖ相のコイル３Ｖを有しており、各相コイル３Ｗ，３Ｕ，３Ｖは、単コイルＷ１〜Ｗ５、Ｕ１〜Ｕ５、Ｖ１〜Ｖ５から構成される。単コイルＷ１〜Ｗ５、Ｕ１〜Ｕ５、Ｖ１〜Ｖ５は、平角線からなる導線を一つのティースに巻回することで構成される。各単コイルＷ１〜Ｗ５、Ｕ１〜Ｕ５、Ｖ１〜Ｖ５は、周方向に繰り返し並ぶようにティースにそれぞれ配置されている。   The stator coil 3 is configured by concentrated winding a conducting wire made of a rectangular wire. The surface of the flat wire is enameled to ensure insulation between adjacent flat wires. The stator coil 3 includes a W-phase coil 3W, a U-phase coil 3U, and a V-phase coil 3V. Each of the phase coils 3W, 3U, and 3V includes single coils W1 to W5, U1 to U5, and V1 to V1. Consists of V5. Single coils W1-W5, U1-U5, and V1-V5 are comprised by winding the conducting wire which consists of a flat wire around one tooth. Each single coil W1-W5, U1-U5, V1-V5 is each arrange | positioned at the teeth so that it may be repeated in the circumferential direction.

複数の同相の単コイルＷ１〜Ｗ５、Ｕ１〜Ｕ５、Ｖ１〜Ｖ５を結線して構成される各相コイル３Ｗ，３Ｕ，３Ｖの各他端には、入力端子５Ｗ，５Ｕ，５Ｖがそれぞれ接続されている。入力端子５Ｗ，５Ｕ，５Ｖには、３相交流電力を出力する図示しないインバータが接続される。各相コイル３Ｗ，３Ｕ，３Ｖの各一端は、互いに接合されて中性点を構成する。各相コイル３Ｗ，３Ｕ，３Ｖは、入力端子５Ｗ，５Ｕ，５Ｖと中性点との間で並列接続されて２Ｙ結線（並列スター結線）される。すなわち、Ｗ相のコイル３Ｗは、単コイルＷ１〜Ｗ５が２組に分割されて、各組が並列接続されている。単コイルＷ１〜Ｗ５を２組に分割するには、回転電機の仕様等に基づいて、例えば、単コイルＷ１〜Ｗ３を直列接続した組と単コイルＷ４，Ｗ５を直列接続した組とに分割する。または、単コイルＷ１〜Ｗ３を並列接続した組と単コイルＷ４，Ｗ５を並列接続した組とに分割する。他の単コイルＵ１〜Ｕ５、Ｖ１〜Ｖ５についても同様である。なお、コイルの個数は５つに限定されない。   Input terminals 5W, 5U, and 5V are connected to the other ends of the respective phase coils 3W, 3U, and 3V configured by connecting a plurality of in-phase single coils W1 to W5, U1 to U5, and V1 to V5. ing. An inverter (not shown) that outputs three-phase AC power is connected to the input terminals 5W, 5U, and 5V. One end of each phase coil 3W, 3U, 3V is joined together to form a neutral point. The phase coils 3W, 3U, 3V are connected in parallel between the input terminals 5W, 5U, 5V and the neutral point, and are 2Y-connected (parallel star connection). That is, in the W-phase coil 3W, the single coils W1 to W5 are divided into two sets, and each set is connected in parallel. In order to divide the single coils W1 to W5 into two sets, for example, based on the specifications of the rotating electrical machine, for example, the single coils W1 to W3 are divided into a series connected and the single coils W4 and W5 are divided into a series connected. . Or it divides | segments into the group which connected the single coils W1-W3 in parallel, and the group which connected the single coils W4 and W5 in parallel. The same applies to the other single coils U1 to U5 and V1 to V5. The number of coils is not limited to five.

各相コイル３Ｗ，３Ｕ，３Ｖの中性点側の各一端は、図２に示す中性線１０に溶接によって接続されている。中性線１０は、１本の平角線の導線を折り曲げて、各相コイル３Ｗ，３Ｕ，３Ｖと接続する端子１０ａ，１０ｂ，１０ｃがそれぞれ形成されている。中性線１０の端子１０ｃ近傍はＵ字状に折り曲げられて、中性線１０の温度を検出する温度センサ２０を保持するＵ字部１１が形成されている。   One end of each phase coil 3W, 3U, 3V on the neutral point side is connected to the neutral wire 10 shown in FIG. 2 by welding. The neutral wire 10 is formed with terminals 10a, 10b, and 10c connected to the respective phase coils 3W, 3U, and 3V by bending a single rectangular wire. The vicinity of the terminal 10 c of the neutral wire 10 is bent into a U shape, and a U-shaped portion 11 that holds a temperature sensor 20 that detects the temperature of the neutral wire 10 is formed.

図３にＵ字部１１の拡大図を示す。図３に示すように、Ｕ字部１１には、このＵ字部１１に着脱可能な温度センサ２０が取り付けられる。温度センサ２０の構造に関して、図３〜５を参照して詳しく説明する。温度センサ２０は、樹脂により一体成形されており、内部にサーミスタ素子２１を有している。温度センサ２０は、サーミスタ素子２１を収容する本体部２２と、本体部２２を中性線１０のＵ字部１１に保持するためのＵ字部１１の各脚１１ａ，１１ａを抱き込む一対の腕部２３，２３と、本体部２２の両側面を覆う一対の側面カバー２４，２４と、本体部２２の先端を覆う先端カバー２５とを備えている。   FIG. 3 shows an enlarged view of the U-shaped portion 11. As shown in FIG. 3, a temperature sensor 20 detachably attached to the U-shaped part 11 is attached to the U-shaped part 11. The structure of the temperature sensor 20 will be described in detail with reference to FIGS. The temperature sensor 20 is integrally formed of resin and has a thermistor element 21 inside. The temperature sensor 20 includes a main body 22 that houses the thermistor element 21 and a pair of arms that embrace the legs 11 a and 11 a of the U-shaped part 11 for holding the main body 22 on the U-shaped part 11 of the neutral wire 10. Parts 23, 23, a pair of side covers 24, 24 covering both side surfaces of the main body 22, and a tip cover 25 covering the front end of the main body 22.

本体部２２は、中性線１０のＵ字部１１に嵌合する直方体形状である。本体部２２の内部には、サーミスタ素子２１が埋設されており、本体部２２の後端から図示しないリード線が延出している。本体部２２の下部には、この下部からＵ字部１１の各脚１１ａ，１１ａの外側を回り込んで、脚１１ａ，１１ａを抱き込むように延出するＬ字状の一対の腕部２３，２３がそれぞれ形成されている。   The main body portion 22 has a rectangular parallelepiped shape that fits into the U-shaped portion 11 of the neutral wire 10. A thermistor element 21 is embedded in the main body 22, and a lead wire (not shown) extends from the rear end of the main body 22. A pair of L-shaped arm portions 23 extending around the outside of the legs 11a, 11a of the U-shaped portion 11 and extending so as to embrace the legs 11a, 11a from the lower portion of the main body portion 22, 23 are formed.

腕部２３，２３の先端には、Ｕ字部１１の脚１１ａ，１１ａに係止する爪２３ａ，２３ａが形成されている。腕部２３，２３は弾性を有しており、爪２３ａ，２３ａがＵ字部１１の脚１１ａ，１１ａに係止する。すなわち、腕部２３，２３及び爪２３ａ，２３ａがＵ字部１１の脚１１ａ，１１ａにスナップフィットする。   Claws 23a and 23a that are engaged with the legs 11a and 11a of the U-shaped portion 11 are formed at the tips of the arm portions 23 and 23. The arm parts 23 and 23 have elasticity, and the claws 23 a and 23 a are engaged with the legs 11 a and 11 a of the U-shaped part 11. That is, the arm portions 23 and 23 and the claws 23 a and 23 a snap fit to the legs 11 a and 11 a of the U-shaped portion 11.

側面カバー２４，２４は、本体部２２の下部からＵ字部１１の各脚１１ａ，１１ａの外側を回り込んでＬ字状に延出しており、脚１１ａ，１１ａの側面を覆っている。側面カバー２４，２４は、本体部２２の長手方向に所定の長さを有している。また、先端カバー２５は、本体部２２の下部からＵ字部１１の先端外側を覆うように延出している。このように、温度センサ２０の本体部２２は、側面カバー２４，２４及び先端カバー２５によって覆われているので、コイル冷却のためのＡＴＦ（Automatic Transmission Fluid）が、温度センサ２０の本体部２２に接触することが抑制される。このため、ＡＴＦによる温度センサ２０の温度低下を抑制でき、中性線１０の温度を精度よく検出することができる。   The side covers 24 and 24 extend from the lower part of the main body 22 around the legs 11a and 11a of the U-shaped part 11 in an L shape, and cover the sides of the legs 11a and 11a. The side covers 24, 24 have a predetermined length in the longitudinal direction of the main body 22. Further, the tip cover 25 extends from the lower portion of the main body portion 22 so as to cover the tip outer side of the U-shaped portion 11. Thus, since the main body 22 of the temperature sensor 20 is covered with the side covers 24 and 24 and the tip cover 25, ATF (Automatic Transmission Fluid) for coil cooling is applied to the main body 22 of the temperature sensor 20. Contact is suppressed. For this reason, the temperature drop of the temperature sensor 20 by ATF can be suppressed, and the temperature of the neutral wire 10 can be detected with high accuracy.

次に、温度センサ２０の中性線１０への着脱について説明する。まず、中性線１０の端子１０ａ，１０ｂ，１０ｃを、ステータコイル３に各相コイル３Ｗ，３Ｕ，３Ｖに溶接して固定する。その後、ステータコイル３のコイル間の隙間を埋めるために、ステータコイル３にワニスを塗布する。そして、ステータコイル３に固定された中性線１０のＵ字部１１の下方から、温度センサ２０を、本体部２２がＵ字部１１の脚１１ａ，１１ａの間に嵌るように、中性線１０のＵ字部１１に装着する。   Next, attachment / detachment to the neutral wire 10 of the temperature sensor 20 will be described. First, the terminals 10a, 10b, and 10c of the neutral wire 10 are fixed to the stator coil 3 by welding to the phase coils 3W, 3U, and 3V. Thereafter, varnish is applied to the stator coil 3 in order to fill a gap between the coils of the stator coil 3. Then, from below the U-shaped portion 11 of the neutral wire 10 fixed to the stator coil 3, the temperature sensor 20 is neutralized so that the main body portion 22 fits between the legs 11 a and 11 a of the U-shaped portion 11. Attach to 10 U-shaped parts 11.

このとき、腕部２３，２３の爪２３ａ，２３ａが、Ｕ字部１１の脚１１ａ，１１ａに当接することによって、腕部２３，２３が弾性変形して一時的に外側に押し広げられた後、腕部２３，２３が元に戻ることによって、爪２３ａ，２３ａが脚１１ａ，１１ａに係止される（図５参照）。この爪２３ａ，２３ａの係止によって、温度センサ２０は、中性線１０のＵ字部１１に装着される。   At this time, after the claws 23a, 23a of the arm portions 23, 23 are in contact with the legs 11a, 11a of the U-shaped portion 11, the arm portions 23, 23 are elastically deformed and temporarily spread outward. When the arm portions 23 and 23 are restored, the claws 23a and 23a are locked to the legs 11a and 11a (see FIG. 5). The temperature sensor 20 is attached to the U-shaped portion 11 of the neutral wire 10 by the engagement of the claws 23a and 23a.

また、サーミスタ素子２１のリード線が断線や短絡して、温度センサ２０を交換する場合、腕部２３，２３を押し広げて爪２３ａ，２３ａの係止を外すことによって、温度センサ２０を中性線１０のＵ字部１１の下方に引っ張ることで、温度センサ２０を中性線１０から取り外すことができる。そして、新しい温度センサ２０を、中性線１０のＵ字部１１の下方からこのＵ字部１１に装着する。   Further, when the temperature sensor 20 is replaced when the lead wire of the thermistor element 21 is disconnected or short-circuited, the temperature sensor 20 is neutralized by expanding the arm portions 23 and 23 to release the claws 23a and 23a. The temperature sensor 20 can be removed from the neutral wire 10 by pulling it below the U-shaped portion 11 of the wire 10. Then, a new temperature sensor 20 is attached to the U-shaped part 11 from below the U-shaped part 11 of the neutral wire 10.

このように、サーミスタ素子２１のリード線が断線や短絡した場合、温度センサ２０のみを交換することができ、特許文献１に記載の埋込型の温度検出部（温度センサと中性線とが樹脂モールドで一体化されている）やステータ１の交換を行う必要がなくなり、修理費用を抑制することができる。また、温度センサ２０の中性線１０に対する着脱を容易に行うことができ、温度センサ２０の交換作業も簡素化することができる。また、温度センサ２０を中性線１０に装着するにあたり、樹脂モールドが必要なくなるので樹脂モールド工程を削減でき、樹脂モールドに係る費用を抑制することができる。   As described above, when the lead wire of the thermistor element 21 is disconnected or short-circuited, only the temperature sensor 20 can be exchanged, and the embedded type temperature detection unit described in Patent Document 1 (the temperature sensor and the neutral wire are connected to each other). It is no longer necessary to replace the stator 1 and the stator 1 and the repair cost can be reduced. Further, the temperature sensor 20 can be easily attached to and detached from the neutral wire 10, and the replacement work of the temperature sensor 20 can be simplified. In addition, when the temperature sensor 20 is attached to the neutral wire 10, the resin mold is not necessary, so that the resin mold process can be reduced and the cost associated with the resin mold can be suppressed.

さらに、特許文献１に記載の埋込型の温度検出部では、この温度検出部の取付後に、ワニスが塗布される場合があり、この場合には温度検出部のリード線やコネクタをワニスから保護する保護作業が必要である。しかし、本実施形態では、上述したように、ワニス塗布後に温度センサ２０を中性線１０に装着しているので、サーミスタ素子２１のリード線等の保護作業が必要なく、保護作業を削減してコストを抑制することができる。   Furthermore, in the embedded type temperature detection unit described in Patent Document 1, varnish may be applied after the temperature detection unit is mounted. In this case, the lead wires and connectors of the temperature detection unit are protected from the varnish. Protection work is necessary. However, in the present embodiment, as described above, since the temperature sensor 20 is attached to the neutral wire 10 after varnish application, there is no need to protect the lead wire of the thermistor element 21 and the like. Cost can be suppressed.

なお、上述した実施形態では、本体部２２の両側に延出する一対の腕部２３，２３により中性線１０のＵ字部１１に係止する構成であったが、本体部２２の両側からＵ字部１１の脚１１ａ，１１ａを抱き込む腕部を備えていればよく、例えば、本体部２２の一方側に一つの腕部を、他方側に二つの腕部をそれぞれ形成してもよい。   In the above-described embodiment, the configuration is such that the U-shaped portion 11 of the neutral wire 10 is locked by the pair of arm portions 23, 23 extending on both sides of the main body portion 22. For example, one arm portion may be formed on one side of the main body portion 22 and two arm portions may be formed on the other side, as long as the arm portions that embrace the legs 11a and 11a of the U-shaped portion 11 are provided. .

１ ステータ、２ ステータコア、２ａ ヨーク、３ ステータコイル、３Ｗ，３Ｕ，３Ｖ 各相コイル、５Ｗ，５Ｕ，５Ｖ 入力端子、１０ 中性線、１１ Ｕ字部、１１ａ 脚、２０ 温度センサ、２１ サーミスタ素子、２２ 本体部、２３ 腕部、２３ａ 爪、２４ 側面カバー、２５ 先端カバー。
1 Stator, 2 Stator Core, 2a Yoke, 3 Stator Coil, 3W, 3U, 3V Phase Coil, 5W, 5U, 5V Input Terminal, 10 Neutral Wire, 11 U-Shape, 11a Leg, 20 Temperature Sensor, 21 Thermistor Element , 22 body part, 23 arm part, 23a claw, 24 side cover, 25 tip cover.

Claims (1)

ステータコイルの中性点に接続してＵ字状に折り曲げられたＵ字部を有する中性線と、前記中性線に当接して前記中性線の温度を検出する温度センサとを備える回転電機のステータであって、
前記温度センサは、
サーミスタ素子を収容し、前記Ｕ字部に嵌合する本体部と、
前記本体部から前記Ｕ字部の各脚を抱き込むようにそれぞれ延出し、弾性を有する腕部と、を備え、
前記Ｕ字部に着脱可能であることを特徴とする回転電機のステータ。

A rotation provided with a neutral wire having a U-shaped portion connected to a neutral point of the stator coil and bent in a U-shape, and a temperature sensor that contacts the neutral wire and detects the temperature of the neutral wire An electric stator,
The temperature sensor is
A body portion that accommodates the thermistor element and fits into the U-shaped portion;
Extending from the main body part so as to embrace each leg of the U-shaped part, and having an elastic arm part,
A stator for a rotating electric machine, wherein the stator is detachable from the U-shaped portion.

JP2016198768A 2016-10-07 2016-10-07 Stator of dynamo-electric machine Pending JP2018061389A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018208384A1 (en) * 2018-05-28 2019-11-28 Zf Friedrichshafen Ag Stator of an electric machine with a temperature sensor and electric machine with such a stator
DE112020002714T5 (en) 2019-06-06 2022-02-17 Nidec Corporation STATOR UNIT AND MOTOR
DE102023117443A1 (en) 2022-07-07 2024-01-18 Denso Corporation Fixing structure for neutral wire and temperature sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018208384A1 (en) * 2018-05-28 2019-11-28 Zf Friedrichshafen Ag Stator of an electric machine with a temperature sensor and electric machine with such a stator
CN112219343A (en) * 2018-05-28 2021-01-12 采埃孚股份公司 Stator of an electric machine having a temperature sensor and electric machine having such a stator
DE112020002714T5 (en) 2019-06-06 2022-02-17 Nidec Corporation STATOR UNIT AND MOTOR
DE102023117443A1 (en) 2022-07-07 2024-01-18 Denso Corporation Fixing structure for neutral wire and temperature sensor

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