JP6287743B2 - Motor stator - Google Patents
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- JP6287743B2 JP6287743B2 JP2014203955A JP2014203955A JP6287743B2 JP 6287743 B2 JP6287743 B2 JP 6287743B2 JP 2014203955 A JP2014203955 A JP 2014203955A JP 2014203955 A JP2014203955 A JP 2014203955A JP 6287743 B2 JP6287743 B2 JP 6287743B2
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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
Description
本発明は、電動機のステータに関する。 The present invention relates to a stator of an electric motor.
従来、この種の電動機のステータとしては、ステータコアに巻回される三相のコイルと、中性点を形成するために三相のコイル（３つ）に溶接等により接合される中性線と、中性線の温度を検出する温度センサと、を有するものが提案されている（例えば、特許文献１参照）。このステータでは、中性線の巻き付き部が、温度センサに巻き付くようにしてこれに接触している。これにより、中性線と温度センサとの接触面積を増加させて、温度検出の応答性を向上させている。また、このステータでは、中性線の巻き付き部と、これに巻き付かれている温度センサの部分と、が樹脂等のモールド材に埋め込まれている。これにより、液冷式の電動機において、コイル導線におけるスロット内に配置された部分（冷却液が掛かりにくい部分）の温度と、温度センサおよびその周囲の温度と、の乖離を抑制して、温度測定の精度を向上させている。 Conventionally, as a stator of this type of electric motor, there are a three-phase coil wound around a stator core, and a neutral wire joined by welding or the like to a three-phase coil (three) to form a neutral point. And a temperature sensor that detects the temperature of the neutral wire have been proposed (see, for example, Patent Document 1). In this stator, the winding portion of the neutral wire is in contact with the temperature sensor so as to wind around. Thereby, the contact area of a neutral wire and a temperature sensor is increased, and the responsiveness of temperature detection is improved. Moreover, in this stator, the winding part of a neutral wire and the part of the temperature sensor wound around this are embedded in mold materials, such as resin. As a result, in a liquid-cooled electric motor, the temperature measurement is performed by suppressing the difference between the temperature of the portion of the coil lead wire (the portion where the coolant is difficult to be applied) and the temperature sensor and the surrounding temperature. Improves accuracy.
上述の電動機では、搭載される装置（例えば自動車など）の振動などによってモールド材が振動し、この振動によって、中性線と三相のコイル（３つ）との溶接等による接合部分に力が作用し、この接合部分の接合力が弱くなってしまう可能性がある。 In the above-described electric motor, the molding material vibrates due to vibrations of a mounted device (for example, an automobile), and this vibration causes a force to be applied to the joint portion by welding between the neutral wire and the three-phase coils (three). There is a possibility that the bonding force of this bonded portion will be weakened.
本発明の電動機のステータは、ステータコアに巻回される三相の複数のコイルのうち各相の最も中性点側のコイル（３つ）とそれらに接合される中性線との接合部分の接合力が弱くなるのを抑制することを主目的とする。 The stator of the electric motor of the present invention includes a joint portion between a coil (three) on the most neutral point side of each phase among a plurality of three-phase coils wound around the stator core and a neutral wire joined thereto. The main purpose is to suppress the weakening of the bonding force.
本発明の電動機のステータは、上述の主目的を達成するために以下の手段を採った。 The stator of the electric motor of the present invention employs the following means in order to achieve the main object described above.
本発明の電動機のステータは、電動機の中性点を形成するためにステータコアに巻回される三相の複数のコイルのうち各相の最も前記中性点側のコイル（３つのいわゆる最終コイル）と接合される中性線と、前記中性線に接触して該中性線の温度を検出する温度センサと、前記温度センサと前記中性線との接触部分をモールドする樹脂部材と、を備える電動機のステータにおいて、前記樹脂部材は、前記温度センサと前記中性線との接触部分をモールドする本体部と、該本体部から所定コイルのコイルエンドである所定コイルエンド側に延出する延出部とを有し、前記延出部の先端部と前記所定コイルエンドとは、接着材により接合されており、前記先端部は、前記所定コイルエンドと前記ステータの軸方向から見て重なっており、前記先端部と前記所定コイルエンドとの互いの対向面は、略平行となっている、ことを特徴とする。 The stator of the electric motor according to the present invention is the most neutral coil (three so-called final coils) of each phase among a plurality of three-phase coils wound around the stator core to form a neutral point of the electric motor. A neutral wire to be joined, a temperature sensor that contacts the neutral wire and detects the temperature of the neutral wire, and a resin member that molds a contact portion between the temperature sensor and the neutral wire, In the stator of an electric motor, the resin member includes a main body portion that molds a contact portion between the temperature sensor and the neutral wire, and an extension that extends from the main body portion to a predetermined coil end side that is a coil end of a predetermined coil. A leading end portion of the extending portion and the predetermined coil end are joined by an adhesive, and the leading end portion overlaps the predetermined coil end when viewed from the axial direction of the stator. The tip Of mutually opposing surfaces of the predetermined coil end and is substantially parallel, characterized in that.
この本発明の電動機のステータでは、中性線とその温度を検出する温度センサとの接触部分をモールドする本体部と、本体部から所定コイルのコイルエンドである所定コイルエンド側に延出する延出部と、を有する樹脂部材を設ける。そして、樹脂部材の延出部の先端部と所定コイルエンドとが、接着材により接合される。ここで、接着材としては、樹脂を含む液状のワニスなどを用いることができる。これにより、樹脂部材が振動するのを抑制し、各相の最終コイル（３つ）と中性線との接合部分（溶接などにより接合される部分）の接合力が弱くなるのを抑制することができる。また、樹脂部材の延出部の先端部と所定コイルエンドとは、ステータ（ステータコア）の軸方向から見て重なっている。これにより、ステータの軸方向が上下方向となり且つ樹脂部材の延出部の先端部が所定コイルエンドより上側となるようにステータを配置して、先端部より上側から接着材を滴下して先端部と所定コイルエンドと接合する際に、両者の接合をより十分なものとすることができる。さらに、先端部と所定コイルエンドとの互いの対向面は、略平行となっている。これにより、先端部と所定コイルエンドとが直接接触するものや両者の互いの対向面が略平行とならないものに比して、両者の互いの対向面の間の各位置で略均一に接着材が存在するようにすることができ、両者の接合をより十分なものとすることができる。 In the stator of the electric motor of the present invention, a main body portion that molds a contact portion between a neutral wire and a temperature sensor that detects the temperature, and an extension that extends from the main body portion to a predetermined coil end side that is a coil end of a predetermined coil. And a resin member having a protruding portion. And the front-end | tip part of the extension part of a resin member and a predetermined coil end are joined by an adhesive material. Here, as the adhesive, a liquid varnish containing a resin can be used. This suppresses the vibration of the resin member, and suppresses the weakening of the bonding force of the bonding portion (the portion to be bonded by welding or the like) between the final coil (three) of each phase and the neutral wire. Can do. Moreover, the front-end | tip part of the extension part of a resin member and the predetermined coil end have overlapped seeing from the axial direction of the stator (stator core). As a result, the stator is arranged so that the axial direction of the stator is in the vertical direction and the distal end portion of the extending portion of the resin member is above the predetermined coil end, and the adhesive material is dropped from above the distal end portion to drop the distal end portion. And when joining with a predetermined coil end, both can be joined more fully. Furthermore, the mutually opposing surfaces of a front-end | tip part and a predetermined coil end are substantially parallel. As a result, compared with the case where the tip portion and the predetermined coil end are in direct contact and the case where the opposing surfaces of the two are not substantially parallel, the adhesive material is substantially uniformly at each position between the opposing surfaces of the two. Can be present, and the bonding between the two can be made more satisfactory.
次に、本発明を実施するための形態を実施例を用いて説明する。 Next, the form for implementing this invention is demonstrated using an Example.
図１は、本発明の一実施例としての電動機のステータ１０の一部の斜視図であり、図２は、ステータ１０の中性線２０および樹脂部材３０の斜視図であり、図３は、中性線２０および樹脂部材３０の正面図（ステータ１０の径方向の内側から見た図）であり、図４は、中性線２０および樹脂部材３０を図３の裏側から見た裏面図であり、図５は、樹脂部材３０の延出部３４の先端部３５および所定コイル１４のコイルエンド１５周辺の拡大図である。 1 is a perspective view of a part of a stator 10 of an electric motor as an embodiment of the present invention, FIG. 2 is a perspective view of a neutral wire 20 and a resin member 30 of the stator 10, and FIG. FIG. 4 is a front view of the neutral wire 20 and the resin member 30 (a view seen from the inside in the radial direction of the stator 10), and FIG. 4 is a back view of the neutral wire 20 and the resin member 30 seen from the back side of FIG. FIG. 5 is an enlarged view of the periphery of the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14.
電動機は、電気自動車やハイブリッド自動車に搭載されており、インバータにより駆動されている。この電動機のステータ１０は、図１に示すように、ステータコア１１と、Ｕ相，Ｖ相，Ｗ相の複数のコイル１２と、中性線２０と、温度センサ２８（図４参照）と、樹脂部材３０と、を備える。 The electric motor is mounted on an electric vehicle or a hybrid vehicle, and is driven by an inverter. As shown in FIG. 1, a stator 10 of this electric motor includes a stator core 11, a plurality of U-phase, V-phase, and W-phase coils 12, a neutral wire 20, a temperature sensor 28 (see FIG. 4), and a resin. And a member 30.
図１に示すように、Ｕ相，Ｖ相，Ｗ相の複数のコイル１２は、ステータコア１１のティースに巻回されている。図示しないが、Ｕ相，Ｖ相，Ｗ相の複数のコイル１２のうち最もインバータ側のコイル（いわゆる第１コイル）の一端部は、インバータからの三相の動力線が接続されたＵ相，Ｖ相，Ｗ相用の外部端子に接続されている。また、Ｕ相，Ｖ相，Ｗ相の複数のコイルのうち最も中性点側のコイル（いわゆる最終コイル）の一端部は、中性点を形成するために、中性線２０と溶接などにより接合されている。さらに、Ｕ相，Ｖ相，Ｗ相の第１コイル，最終コイルの他端部および第１コイル，最終コイル以外のコイルの両端は、それぞれ、同相の隣り合うコイルの対応する端部と溶接などにより接合されている。 As shown in FIG. 1, a plurality of U-phase, V-phase, and W-phase coils 12 are wound around the teeth of the stator core 11. Although not shown in the drawing, one end of the coil on the most inverter side (so-called first coil) among the U-phase, V-phase, and W-phase coils 12 is connected to the U-phase to which the three-phase power lines from the inverter are connected Connected to external terminals for V and W phases. In addition, one end of the coil on the most neutral point side (so-called final coil) among the plurality of coils of U phase, V phase, and W phase is formed by welding with the neutral wire 20 to form a neutral point. It is joined. Furthermore, the U-phase, V-phase, and W-phase first coils, the other end of the final coil, and both ends of the coils other than the first coil and the final coil are welded to corresponding ends of adjacent coils in the same phase, respectively. It is joined by.
中性線２０は、図２〜図４に示すように、略Ｅ字状に形成されている。この中性線２０の３つの接合部２０ｕ，２０ｖ，２０ｗは、上述したように、Ｕ相，Ｖ相，Ｗ相の最終コイルの一端部（３つ）と溶接などにより接合されている。 As shown in FIGS. 2 to 4, the neutral wire 20 is formed in a substantially E shape. As described above, the three joints 20u, 20v, and 20w of the neutral wire 20 are joined to one end (three) of the final coils of the U phase, V phase, and W phase by welding or the like.
温度センサ２８は、サーミスタなどの温度検出素子が内蔵されて構成されている。この温度センサ２８は、中性線２０と接触するように配置され、中性線２０の温度を検出する。また、温度センサ２８と中性線２０との接触部分は、樹脂部材３０によりモールドされている。上述の中性線２０は、図示しないが、樹脂部材３０内の部分が、温度センサ２８に巻き付くようにＵ字状に曲げられている。これにより、中性線２０と温度センサ２８との接触面積を大きくして、温度検出の応答性を向上させることができる。 The temperature sensor 28 includes a temperature detection element such as a thermistor. The temperature sensor 28 is disposed so as to be in contact with the neutral wire 20 and detects the temperature of the neutral wire 20. Further, the contact portion between the temperature sensor 28 and the neutral wire 20 is molded by the resin member 30. Although not shown in the drawing, the neutral wire 20 described above is bent in a U shape so that a portion in the resin member 30 is wound around the temperature sensor 28. Thereby, the contact area of the neutral wire 20 and the temperature sensor 28 can be enlarged, and the responsiveness of temperature detection can be improved.
樹脂部材３０は、本体部３２と、延出部３４と、を有する。ここで、本体部３２は、中性線２０と温度センサ２８との接触部分をモールドしている。また、延出部３４は、本体部３２から、Ｕ相，Ｖ相，Ｗ相の複数のコイル１２のうち所定コイル１４のコイルエンド１５側に延出している。なお、所定コイル１４は、そのコイルエンド１５が、樹脂部材３０より内周側で且つ樹脂部材３０に最も近いコイルである。図１に示すように、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とは、ステータ１０の軸方向（図１中上下方向）から見て重なっている。また、図５に示すように、樹脂部材３０の延出部３４の先端部３５の図１，図５中下側（所定コイル１４のコイルエンド１５側）の面３６と、所定コイル１４のコイルエンド１５の図１，図５中上側（樹脂部材３０の延出部３４の先端部３５側）の面１６とは、略平行となるように形成されている。さらに、図５に示すように、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とは、樹脂を含む液状のワニスなどの接着材４０によって接合されている。なお、先端部３５とコイルエンド１５との接合は、図１に示すようにステータ１０を配置して、即ち、ステータ１０（ステータコア１１）の軸方向が上下方向となり且つ先端部３５がコイルエンド１５より上側となるようにステータ１０を配置して、先端部３５に図１中上側から接着材４０を滴下して行なうものとした。 The resin member 30 includes a main body portion 32 and an extending portion 34. Here, the main body 32 molds a contact portion between the neutral wire 20 and the temperature sensor 28. Further, the extending part 34 extends from the main body part 32 to the coil end 15 side of the predetermined coil 14 among the plurality of coils 12 of the U phase, the V phase, and the W phase. The predetermined coil 14 is a coil whose coil end 15 is on the inner peripheral side of the resin member 30 and closest to the resin member 30. As shown in FIG. 1, the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 overlap each other when viewed from the axial direction of the stator 10 (vertical direction in FIG. 1). Further, as shown in FIG. 5, a surface 36 on the lower side (coil end 15 side of the predetermined coil 14) in FIGS. 1 and 5 of the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil of the predetermined coil 14. 1 and 5 of the end 15 is formed so as to be substantially parallel to the surface 16 on the upper side (on the side of the distal end portion 35 of the extending portion 34 of the resin member 30). Further, as shown in FIG. 5, the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 are joined by an adhesive 40 such as a liquid varnish containing resin. As shown in FIG. 1, the stator 10 is arranged to join the tip portion 35 and the coil end 15, that is, the axial direction of the stator 10 (stator core 11) is the vertical direction, and the tip portion 35 is the coil end 15. The stator 10 is arranged so as to be on the upper side, and the adhesive 40 is dropped from the upper side in FIG.
こうして構成される電動機のステータ１０では、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とを接着材４０によって接合することにより、以下の効果を奏する。ここで、比較例として、樹脂部材３０が延出部３４を有さず、樹脂部材３０と所定コイル１４とを接着材４０によって接合しない構成を考える。比較例の場合、電動機が搭載される電気自動車やハイブリッド自動車の走行時の振動などによって樹脂部材３０が振動し、この振動によって、中性線２０の接合部２０ｕ，２０ｖ，２０ｗとＵ相，Ｖ相，Ｗ相の最終コイルの一端部（３つ）との接合力が弱くなってしまう可能性がある。これに対して、実施例では、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とを接着材４０によって接合する。これにより、樹脂部材３０の振動を抑制し、中性線２０の接合部２０ｕ，２０ｖ，２０ｗとＵ相，Ｖ相，Ｗ相の最終コイルの一端部（３つ）との接合力が弱くなるのを抑制することができる。 In the stator 10 of the electric motor configured in this way, the following effects can be achieved by joining the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 with the adhesive 40. Here, as a comparative example, a configuration in which the resin member 30 does not have the extending portion 34 and the resin member 30 and the predetermined coil 14 are not joined by the adhesive 40 is considered. In the case of the comparative example, the resin member 30 vibrates due to vibration during traveling of an electric vehicle or a hybrid vehicle on which the electric motor is mounted. There is a possibility that the bonding force with one end (three) of the final coils of the phase and W phase will be weak. On the other hand, in the embodiment, the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 are joined by the adhesive 40. Thereby, the vibration of the resin member 30 is suppressed, and the joining force between the joining portions 20u, 20v, and 20w of the neutral wire 20 and one end portions (three) of the final coils of the U phase, the V phase, and the W phase is weakened. Can be suppressed.
また、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とをステータコア１１の軸方向から見て重なるようにする。これにより、ステータ１０の軸方向が上下方向となり且つ先端部３５がコイルエンド１５より上側となるようにステータ１０を配置して、先端部３５より上側から接着材４０を滴下して先端部３５とコイルエンド１５とを接合する際に、両者の接合をより十分なものとすることができる。 Further, the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 are overlapped when viewed from the axial direction of the stator core 11. As a result, the stator 10 is arranged so that the axial direction of the stator 10 is in the vertical direction and the tip portion 35 is above the coil end 15, and the adhesive 40 is dropped from above the tip portion 35 to form the tip portion 35. When the coil end 15 is bonded, the bonding between the two can be made more satisfactory.
さらに、樹脂部材３０の延出部３４の先端部３５の面３６と所定コイル１４のコイルエンド１５の面１６とが略平行となるようにする。これにより、先端部３５をコイルエンド１５に直接接触させるものや面３６と面１６とが略平行とならないものに比して、先端部３５の面３６とコイルエンド１５の面１６との間の各位置で接着材が略均一に存在するようにすることができ、両者の接合をより十分なものとすることができる。 Further, the surface 36 of the distal end portion 35 of the extending portion 34 of the resin member 30 and the surface 16 of the coil end 15 of the predetermined coil 14 are made substantially parallel. Thereby, compared with what makes the front-end | tip part 35 contact the coil end 15 directly, and the surface 36 and the surface 16 do not become substantially parallel, it is between the surface 36 of the front-end | tip part 35 and the surface 16 of the coil end 15. It is possible to make the adhesive material exist substantially uniformly at each position, and the bonding between the two can be made more satisfactory.
以上説明した実施例の電動機のステータ１０によれば、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とを接着材４０によって接合するから、両者を接合しないものに比して、樹脂部材３０の振動を抑制し、中性線２０の接合部２０ｕ，２０ｖ，２０ｗとＵ相，Ｖ相，Ｗ相の最終コイルの一端部（３つ）との接合力が弱くなるのを抑制することができる。そして、樹脂部材３０の延出部３４の先端部３５と所定コイル１４のコイルエンド１５とをステータコア１１の軸方向から見て重なるようにすると共に、先端部３５の面３６とコイルエンド１５の面１６とが略平行となるようにするから、先端部３５とコイルエンド１５との接着材４０による接合をより十分なものとすることができる。 According to the stator 10 of the electric motor of the embodiment described above, the distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 are joined by the adhesive 40, so that both are not joined. In comparison, the vibration of the resin member 30 is suppressed, and the bonding force between the bonding portions 20u, 20v, and 20w of the neutral wire 20 and one end (three) of the final coils of the U phase, V phase, and W phase is weak. It can be suppressed. The distal end portion 35 of the extending portion 34 of the resin member 30 and the coil end 15 of the predetermined coil 14 are overlapped when viewed from the axial direction of the stator core 11, and the surface 36 of the distal end portion 35 and the surface of the coil end 15 are overlapped. 16 is made substantially parallel to each other, the bonding between the tip portion 35 and the coil end 15 by the adhesive 40 can be made more sufficient.
実施例の主要な要素と課題を解決するための手段の欄に記載した発明の主要な要素との対応関係について説明する。実施例では、中性線２０が「中性線」に相当し、温度センサ２８が「温度センサ」に相当し、本体部３２と延出部３４とを有する樹脂部材３０が「樹脂部材」に相当する。 The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the neutral wire 20 corresponds to the “neutral wire”, the temperature sensor 28 corresponds to the “temperature sensor”, and the resin member 30 having the main body portion 32 and the extending portion 34 is the “resin member”. Equivalent to.
なお、実施例の主要な要素と課題を解決するための手段の欄に記載した発明の主要な要素との対応関係は、実施例が課題を解決するための手段の欄に記載した発明を実施するための形態を具体的に説明するための一例であることから、課題を解決するための手段の欄に記載した発明の要素を限定するものではない。即ち、課題を解決するための手段の欄に記載した発明についての解釈はその欄の記載に基づいて行なわれるべきものであり、実施例は課題を解決するための手段の欄に記載した発明の具体的な一例に過ぎないものである。 The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. That is, the interpretation of the invention described in the column of means for solving the problems should be made based on the description of the column, and the examples are those of the invention described in the column of means for solving the problems. It is only a specific example.
以上、本発明を実施するための形態について実施例を用いて説明したが、本発明はこうした実施例に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において、種々なる形態で実施し得ることは勿論である。 As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all to such an Example, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.
本発明は、電動機のステータの製造産業などに利用可能である。 The present invention can be used in the manufacturing industry of stators for electric motors.
１０ ステータ、１１ ステータコア、１２ コイル、１４ 所定コイル、１５ コイルエンド、１６ 面、２０ 中性線、２０ｕ，２０ｖ，２０ｗ 接合部、２８ 温度センサ、３０ 樹脂部材、３２ 本体部、３４ 延出部、３５ 先端部、３６ 面、４０ 接着材。 DESCRIPTION OF SYMBOLS 10 Stator, 11 Stator core, 12 Coil, 14 Predetermined coil, 15 Coil end, 16 surface, 20 Neutral wire, 20u, 20v, 20w Joint part, 28 Temperature sensor, 30 Resin member, 32 Main body part, 34 Extension part, 35 tip, 36 surfaces, 40 adhesive.
Claims (1)
前記中性線に接触して該中性線の温度を検出する温度センサと、
前記温度センサと前記中性線との接触部分をモールドする樹脂部材と、
を備える電動機のステータにおいて、
前記樹脂部材は、前記温度センサと前記中性線との接触部分をモールドする本体部と、該本体部から所定コイルのコイルエンドである所定コイルエンド側に延出する延出部とを有し、
前記延出部の先端部と前記所定コイルエンドとは、接着材により接合されており、
前記先端部は、前記所定コイルエンドと前記ステータの軸方向から見て重なっており、
前記先端部と前記所定コイルエンドとの互いの対向面は、略平行となっている、
ことを特徴とする電動機のステータ。 In order to form a neutral point of the electric motor, a neutral wire joined to a coil on the most neutral point side of each phase among a plurality of three-phase coils wound around the stator core;
A temperature sensor for detecting the temperature of the neutral wire in contact with the neutral wire;
A resin member that molds a contact portion between the temperature sensor and the neutral wire;
In the stator of an electric motor comprising:
The resin member includes a main body portion that molds a contact portion between the temperature sensor and the neutral wire, and an extending portion that extends from the main body portion to a predetermined coil end side that is a coil end of a predetermined coil. ,
The tip of the extension part and the predetermined coil end are joined by an adhesive,
The tip portion overlaps the predetermined coil end as viewed from the axial direction of the stator,
The mutually opposing surfaces of the tip and the predetermined coil end are substantially parallel.
A stator for an electric motor.
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