JP2011223744A - Integrated motor with high voltage equipment - Google Patents

Integrated motor with high voltage equipment Download PDF

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JP2011223744A
JP2011223744A JP2010090248A JP2010090248A JP2011223744A JP 2011223744 A JP2011223744 A JP 2011223744A JP 2010090248 A JP2010090248 A JP 2010090248A JP 2010090248 A JP2010090248 A JP 2010090248A JP 2011223744 A JP2011223744 A JP 2011223744A
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electric motor
bus bar
resin
voltage device
motor
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JP5400687B2 (en
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Tatsuyuki Uechi
辰之 上地
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Aisin AW Co Ltd
Toyota Motor Corp
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Aisin AW Co Ltd
Toyota Motor Corp
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Abstract

PROBLEM TO BE SOLVED: To provide an integrated motor with high voltage equipment, which a motor and the high voltage equipment supplying power to the motor are connected integrally, prevents temperature rise of the high voltage equipment due to a heat transferred from the motor.SOLUTION: A cooling medium flows in an integrated motor with high voltage equipment 10 having a cooling section 36 made of a resin for cooling a PCU 20. The resin of the cooling section 36 is formed to cover at least the portion of a bus bar 24 connecting between a motor 14 and the PCU 20. The constitution can aggressively transfer a heat of the bus bar 24 to the cooling section 36, so the temperature rise in the PCU 20 can be inhibited.

Description

本発明は、電動機と、この電動機に電力を供給する高電圧機器とが一体的に連結された高電圧機器一体型電動機の冷却構造の改良に関する。   The present invention relates to an improvement in a cooling structure for a high-voltage device-integrated electric motor in which an electric motor and a high-voltage device that supplies electric power to the electric motor are integrally connected.

従来から、電動機と、この電動機のコイルに、バスバーを介して電力を供給する高電圧機器とを有し、これらが一体的に連結された高電圧機器一体型電動機が知られている。このように構成される電動機は、省スペース化が図られる車両用原動機として使用される例がある。   2. Description of the Related Art Conventionally, a high-voltage device-integrated electric motor that has an electric motor and a high-voltage device that supplies electric power to a coil of the electric motor via a bus bar and is integrally connected is known. There is an example in which the electric motor configured as described above is used as a vehicle prime mover that saves space.

下記特許文献１には、電動機とインバータとが一体に連結されたインバータ一体型電動機が記載されている。インバータと電動機のコイルとの間には、電力が流れるバスバーが接続される。このバスバーは、インバータに接続するバスバーと電動機に接続するバスバーとを有し、これらのバスバーが、熱伝導率の低い導電性部を介して電気的に接続するように構成される。この構成により、電動機で発生した熱が、バスバーを介して、インバータに伝導されることを抑制している。   Patent Document 1 below describes an inverter-integrated electric motor in which an electric motor and an inverter are integrally connected. A bus bar through which electric power flows is connected between the inverter and the coil of the electric motor. This bus bar has a bus bar connected to the inverter and a bus bar connected to the electric motor, and these bus bars are configured to be electrically connected via a conductive portion having a low thermal conductivity. With this configuration, heat generated in the electric motor is suppressed from being conducted to the inverter via the bus bar.

特開平８−５１７４３号公報JP-A-8-51743

従来の高電圧機器一体型電動機においては、電動機で発生した熱が、バスバーを介して高電圧機器に伝わってしまい、高電圧機器に不具合が発生しまうという問題がある。   In the conventional high-voltage device-integrated electric motor, there is a problem that heat generated in the motor is transmitted to the high-voltage device via the bus bar, causing a problem in the high-voltage device.

そこで、上記特許文献１に記載されるように、バスバーの一部に、熱伝導率の低い導電性部を設け、電動機で発生した熱が高電圧機器に伝わることを抑制する方法が考えられる。   Therefore, as described in Patent Document 1, a method is conceivable in which a conductive portion having a low thermal conductivity is provided in a part of the bus bar to suppress the heat generated by the motor from being transmitted to the high voltage device.

しかしながら、上記特許文献１に記載されるような熱伝導抑制構造では、バスバーからの放熱により、高電圧機器内の雰囲気の温度上昇を防止することができない。すなわち、バスバーからの熱伝導を抑制しても、高電圧機器内の雰囲気の温度が上昇してしまい、高電圧機器自体の温度が上昇してしまう。このような状況下においても高電圧機器の動作を保証するには、高価な部品を用いて高電圧機器の耐熱温度を上げなければならず、製造コストが増大してしまう。   However, in the heat conduction suppressing structure as described in Patent Document 1, the temperature rise of the atmosphere in the high voltage device cannot be prevented due to heat radiation from the bus bar. That is, even if the heat conduction from the bus bar is suppressed, the temperature of the atmosphere in the high voltage device rises, and the temperature of the high voltage device itself rises. Even in such a situation, in order to guarantee the operation of the high-voltage device, it is necessary to increase the heat-resistant temperature of the high-voltage device using expensive components, which increases the manufacturing cost.

本発明の目的は、低コストで、電動機から伝わる熱による高電圧機器の温度上昇を効率よく抑制することができる高電圧機器一体型電動機を提供することにある。   An object of the present invention is to provide a high-voltage device-integrated electric motor that can efficiently suppress a temperature rise of a high-voltage device due to heat transmitted from the motor at low cost.

本発明は、電動機と、この電動機のコイルに、バスバーを介して電力を供給する高電圧機器と、を有し、電動機と高電圧機器とが一体的に連結された高電圧機器一体型電動機において、冷却媒体が流れ、高電圧機器を冷却する樹脂製の冷却部を有し、バスバーの少なくとも一部が、冷却部を形成する樹脂に覆われることを特徴とする。   The present invention includes an electric motor and a high voltage device that supplies electric power to a coil of the electric motor via a bus bar, and the electric motor and the high voltage device are integrally connected to each other. The cooling medium flows and has a resin cooling part that cools the high-voltage device, and at least a part of the bus bar is covered with the resin that forms the cooling part.

また、前記バスバーの少なくとも一部と前記樹脂との間に、前記樹脂より高い熱伝導性を有する樹脂が配置されることができる。   In addition, a resin having higher thermal conductivity than the resin may be disposed between at least a part of the bus bar and the resin.

また、前記高熱伝導性の樹脂は、冷却媒体が流れる流路のほうまで延びるように前記樹脂内に設けられることができる。   The high thermal conductivity resin may be provided in the resin so as to extend to a flow path through which a cooling medium flows.

また、バスバーの電流を検出する電流センサを有し、前記バスバーの少なくとも一部は、電流センサより電動機のコイル側であることができる。   In addition, a current sensor for detecting a current of the bus bar may be provided, and at least a part of the bus bar may be closer to the coil side of the motor than the current sensor.

本発明の高電圧機器一体型電動機によれば、低コストで、電動機から伝わる熱による高電圧機器の温度上昇を効率よく抑制することができる。   According to the high voltage device-integrated electric motor of the present invention, the temperature increase of the high voltage device due to heat transmitted from the motor can be efficiently suppressed at low cost.

本実施形態に係る電気自動車の構成を示す図である。It is a figure which shows the structure of the electric vehicle which concerns on this embodiment. 本実施形態に係る高電圧機器一体型電動機の構成を示す図である。It is a figure which shows the structure of the high voltage apparatus integrated electric motor which concerns on this embodiment.

以下、本発明に係る高電圧機器一体型電動機の実施形態について、図を用いて説明する。一例として、電動機の出力で走行する電気自動車を挙げ、この自動車に搭載される高電圧機器一体型電動機について説明する。なお、本発明は、電気自動車に限らず、内燃機関と電動機との出力で走行する車両、すなわちハイブリッド車両用の高電圧機器一体型電動機、または電動機の出力で動作するその他の機器にも適用できる。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a high-voltage device-integrated electric motor according to the present invention will be described with reference to the drawings. As an example, an electric vehicle that travels with the output of an electric motor is cited, and a high-voltage device-integrated electric motor that is mounted on the vehicle will be described. The present invention can be applied not only to an electric vehicle but also to a vehicle that travels with the output of an internal combustion engine and an electric motor, that is, a high-voltage device-integrated electric motor for a hybrid vehicle, or other devices that operate with the output of the electric motor. .

まず、本実施形態に係る高電圧機器一体型電動機１０を搭載する電気自動車１２の構成について、図１を用いて説明する。図１は、本実施形態に係る電気自動車１２の構成を示す図である。   First, the configuration of the electric vehicle 12 on which the high-voltage device-integrated electric motor 10 according to the present embodiment is mounted will be described with reference to FIG. FIG. 1 is a diagram illustrating a configuration of an electric vehicle 12 according to the present embodiment.

電気自動車１２は、原動機として電動機１４を有する。電動機１４には、動力伝達機構１６を介して駆動輪１８が接続される。電動機１４の動力は、動力伝達機構１６を介して、駆動輪１８に伝達され、電気自動車１２が走行する。   The electric vehicle 12 has an electric motor 14 as a prime mover. Drive wheels 18 are connected to the electric motor 14 via a power transmission mechanism 16. The power of the electric motor 14 is transmitted to the drive wheels 18 through the power transmission mechanism 16 and the electric vehicle 12 travels.

また、電気自動車１２は、パワーコントロールユニット（以下、「ＰＣＵ（Power Control Unit）」と記す）２０と、バッテリ２２とを有する。電動機１４は、ＰＣＵ２０を介してバッテリ２２に電気的に接続される。電動機１４とＰＣＵ２０とは、バスバー２４を介して接続される。一方、ＰＣＵ２０とバッテリ２２とは、直流用のケーブル２６を介して接続される。   The electric vehicle 12 includes a power control unit (hereinafter referred to as “PCU (Power Control Unit)”) 20 and a battery 22. The electric motor 14 is electrically connected to the battery 22 via the PCU 20. The electric motor 14 and the PCU 20 are connected via a bus bar 24. On the other hand, the PCU 20 and the battery 22 are connected via a DC cable 26.

ＰＣＵ２０は、例えば数百Ｖもの高電圧が印加される高電圧機器であり、インバータ２８（図２に示す）とコンデンサ３０（図２に示す）とコンバータ（図示せず）とを含む。   The PCU 20 is a high voltage device to which a high voltage of, for example, several hundred volts is applied, and includes an inverter 28 (shown in FIG. 2), a capacitor 30 (shown in FIG. 2), and a converter (not shown).

インバータ２８は、６個のスイッチング素子を含む三相ブリッジ回路を有し、これらのスイッチング素子のスイッチング動作により直流電力を三相交流電力に変換したり、三相交流電力を直流電力に変換したりする装置である。   The inverter 28 has a three-phase bridge circuit including six switching elements, and converts DC power into three-phase AC power or converts three-phase AC power into DC power by the switching operation of these switching elements. It is a device to do.

コンデンサ３０は、インバータ２８の１次側に設けられ、バッテリ２２からインバータ２８に供給される直流の電圧を平滑化する装置である。なお、インバータ２８の２次側にコンデンサ３０を設けて、インバータ２８から電動機１４に供給される電圧の高周波成分を除去することもできる。   The capacitor 30 is a device that is provided on the primary side of the inverter 28 and smoothes the DC voltage supplied from the battery 22 to the inverter 28. Note that a capacitor 30 may be provided on the secondary side of the inverter 28 to remove a high-frequency component of the voltage supplied from the inverter 28 to the electric motor 14.

コンバータは、リアクトルとスイッチング素子とを有し、スイッチング素子のスイッチング動作によりリアクトルにおけるエネルギの蓄積と放出とを繰り返し、入力電圧を変換して出力電圧を得る装置である。   The converter is a device that includes a reactor and a switching element, repeatedly stores and discharges energy in the reactor by a switching operation of the switching element, and converts an input voltage to obtain an output voltage.

なお、本実施形態においては、ＰＣＵ２０がインバータ２８とコンデンサ３０とコンバータとを含む場合について説明したが、本発明はこの構成に限定されず、ＰＣＵ２０がインバータ２８、コンデンサ３０またはコンバータの少なくとも１つを含んでもよい。   In the present embodiment, the case where the PCU 20 includes the inverter 28, the capacitor 30, and the converter has been described. However, the present invention is not limited to this configuration, and the PCU 20 includes at least one of the inverter 28, the capacitor 30, or the converter. May be included.

バッテリ２２は、充放電可能な二次電池であり、例えばニッケル水素バッテリ、リチウムイオンバッテリなどで構成される。もちろん、バッテリ２２が、二次電池以外の充放電可能な蓄電器、例えばキャパシタで構成されてもよい。   The battery 22 is a chargeable / dischargeable secondary battery, and is composed of, for example, a nickel metal hydride battery or a lithium ion battery. Of course, the battery 22 may be configured by a chargeable / dischargeable battery other than the secondary battery, for example, a capacitor.

バッテリ２２に蓄えられた電力は、ＰＣＵ２０により昇圧されるとともに直流から交流に変換された後に、バスバー２４を介して電動機１４のコイルに供給され、電動機１４を駆動する。また、回生時に電動機１４により発電された電力は、ＰＣＵ２０により交流から直流に変換されるとともに降圧された後に、バッテリ２２に送られて蓄えられる。   The electric power stored in the battery 22 is boosted by the PCU 20 and converted from direct current to alternating current, and then supplied to the coil of the electric motor 14 via the bus bar 24 to drive the electric motor 14. Further, the electric power generated by the electric motor 14 at the time of regeneration is converted from alternating current to direct current by the PCU 20, and after being stepped down, is sent to the battery 22 and stored therein.

本実施形態の高電圧機器一体型電動機１０は、電動機１４とＰＣＵ２０が一体的に連結されている。しかし、一体的に連結される機器の構成は一例であって、本発明はこの構成に限定されず、高電圧機器一体型電動機１０が、電動機１４とＰＣＵ２０の他に、さらに動力伝達機構１６が一体的に連結されて構成されてもよい。   In the high voltage device-integrated electric motor 10 of the present embodiment, the electric motor 14 and the PCU 20 are integrally connected. However, the configuration of the devices that are integrally connected is an example, and the present invention is not limited to this configuration. The high-voltage device-integrated electric motor 10 includes a power transmission mechanism 16 in addition to the motor 14 and the PCU 20. It may be configured to be integrally connected.

次に本実施形態の高電圧機器一体型電動機１０の構成について、図２を用いて説明する。図２は、高電圧機器一体型電動機１０の構成を示す図である。   Next, the configuration of the high-voltage device-integrated electric motor 10 of this embodiment will be described with reference to FIG. FIG. 2 is a diagram illustrating a configuration of the high-voltage device-integrated electric motor 10.

高電圧機器一体型電動機１０は、電動機１４とＰＣＵ２０が一体的に連結されている。具体的には、ＰＣＵ２０のハウジング２０ａが電動機１４のハウジング１４ａに連結されるように設けられ、それらのハウジング１４ａ，２０ａを連通するようにバスバー２４が設けられる。   In the high-voltage equipment-integrated electric motor 10, the electric motor 14 and the PCU 20 are integrally connected. Specifically, the housing 20a of the PCU 20 is provided so as to be connected to the housing 14a of the electric motor 14, and the bus bar 24 is provided so as to communicate the housings 14a and 20a.

ハウジング１４ａには、ロータと、コイルが巻回されたステータ（共に図示せず）とが収容される。ハウジング１４ａにおいて、バスバー２４の一端がコイルに接続される。 The housing 14a accommodates a rotor and a stator (both not shown) around which a coil is wound. In the housing 14a, one end of the bus bar 24 is connected to the coil.

ハウジング２０ａには、インバータ２８と、コンデンサ３０と、コンバータ（図示せず）とが収容される。ハウジング２０ａにおいて、バスバー２４の他端がインバータ２８に接続される。   In the housing 20a, an inverter 28, a capacitor 30, and a converter (not shown) are accommodated. In the housing 20a, the other end of the bus bar 24 is connected to the inverter 28.

また、ハウジング２０ａには、インバータ２８、コンデンサ３０及びコンバータを制御する制御基板３２と、バスバー２４を流れる電流を計測する電流センサ３４と、ＰＣＵ２０を冷却する冷却部３６とが収容される。   The housing 20a also houses a control board 32 that controls the inverter 28, the capacitor 30 and the converter, a current sensor 34 that measures the current flowing through the bus bar 24, and a cooling unit 36 that cools the PCU 20.

電流センサ３４は、バスバー２４が貫通するように設けられたコア（図示せず）と、コアの各ギャップ部（図示せず）に配置される磁束密度検出素子（図示せず）と、この素子を搭載する回路基板（図示せず）とを有する。電流センサ３４は、バスバー２４に電流が流れると、その電流によりコア内部に磁界が発生し、磁束密度検出素子がその磁界の強さを電圧信号に変換することにより電流値を検出する。この電流値は電流センサ３４から制御基板３２に出力され、制御基板３２は電流値に基づいてインバータ２８を駆動制御する。   The current sensor 34 includes a core (not shown) provided so that the bus bar 24 penetrates, a magnetic flux density detection element (not shown) disposed in each gap portion (not shown) of the core, and the element. And a circuit board (not shown) for mounting. When a current flows through the bus bar 24, the current sensor 34 generates a magnetic field inside the core due to the current, and the magnetic flux density detection element detects the current value by converting the strength of the magnetic field into a voltage signal. This current value is output from the current sensor 34 to the control board 32, and the control board 32 controls the drive of the inverter 28 based on the current value.

冷却部３６は、これの両面にインバータ２８とコンデンサ３０とが接するように配置される。冷却部３６は、樹脂製であり、ポリプロピレンまたはポニフェニレンエーテルなどの熱可塑性樹脂を用いた射出成形により形成される。冷却部３６は、冷却媒体が流れる流路３８を有する。流路３８は、上述した樹脂によって囲まれた空間である。流路３８を流れる冷却媒体は、自動車に使用される冷却媒体であり、例えばＬＬＣ（Long Life Coolant）である。この構成により、インバータ２８とコンデンサ３０で生じた熱を、冷却部３６の流路３８を流れる冷却媒体に効率よく放熱することができる。   The cooling unit 36 is disposed so that the inverter 28 and the capacitor 30 are in contact with both sides thereof. The cooling unit 36 is made of resin, and is formed by injection molding using a thermoplastic resin such as polypropylene or poniphenylene ether. The cooling unit 36 has a flow path 38 through which a cooling medium flows. The flow path 38 is a space surrounded by the above-described resin. The cooling medium flowing through the flow path 38 is a cooling medium used in an automobile, and is, for example, LLC (Long Life Coolant). With this configuration, heat generated by the inverter 28 and the capacitor 30 can be efficiently radiated to the cooling medium flowing through the flow path 38 of the cooling unit 36.

本実施形態の冷却部３６は、これの樹脂がバスバー２４の一部を覆うように成形される。具体的には、図２に示されるように、冷却部３６を構成する樹脂が、バスバー２４側へ延び、そしてバスバー２４に沿ってバスバー２４を覆うように成形される。なお、冷却部３６を構成する樹脂であって、バスバー２４を覆う樹脂の部分を以降、樹脂壁４０と記す。   The cooling unit 36 of the present embodiment is molded such that the resin covers a part of the bus bar 24. Specifically, as shown in FIG. 2, the resin constituting the cooling unit 36 is formed so as to extend toward the bus bar 24 and cover the bus bar 24 along the bus bar 24. A portion of the resin that constitutes the cooling unit 36 and covers the bus bar 24 is hereinafter referred to as a resin wall 40.

この構成により、電動機１４で発生し、バスバー２４を介してＰＣＵ２０に移動してくる熱を、樹脂壁４０に伝えることができるので、その熱を、冷却部３６の流路３８を流れる冷却媒体に放熱することができる。また、樹脂壁４０に覆われるバスバー２４の領域においては、バスバー２４からハウジング２０ａ内部の雰囲気への放熱が防止されるので、電動機１４の発熱によるＰＣＵ２０の温度上昇を抑制することができる。   With this configuration, heat generated in the electric motor 14 and moving to the PCU 20 via the bus bar 24 can be transmitted to the resin wall 40, so that heat is transferred to the cooling medium flowing through the flow path 38 of the cooling unit 36. It can dissipate heat. Further, in the region of the bus bar 24 covered with the resin wall 40, heat dissipation from the bus bar 24 to the atmosphere inside the housing 20a is prevented, so that an increase in the temperature of the PCU 20 due to heat generated by the electric motor 14 can be suppressed.

また、図２に示されるように、樹脂壁４０により覆われるバスバー２４の領域は、電流センサ３４より電動機１４のコイル側に位置する。この構成により、バスバー２４が貫通するように設けられ、バスバー２４を介して電動機１４からの熱の影響を受け易い電流センサ３４の温度上昇を効果的に抑制することができる。   Further, as shown in FIG. 2, the area of the bus bar 24 covered by the resin wall 40 is located on the coil side of the electric motor 14 from the current sensor 34. With this configuration, the bus bar 24 is provided so as to penetrate, and the temperature increase of the current sensor 34 that is easily affected by the heat from the electric motor 14 via the bus bar 24 can be effectively suppressed.

また、本実施形態においては、樹脂壁４０と、樹脂壁４０に覆われるバスバー２４との間に、樹脂壁４０より高い熱伝導性を有する樹脂４２が配置される。この高熱伝導性の樹脂４２も熱可塑性樹脂であり、例えばシリコーンである。この高熱伝導性の樹脂４２は、冷却部３６内を、流路３８のほうまで延びるように設けられる。この構成により、電動機１４から移動するバスバー２４の熱を、高熱伝導性の樹脂４２を介して、流路３８を流れる冷却媒体に効率よく放熱することができる。   In the present embodiment, a resin 42 having higher thermal conductivity than the resin wall 40 is disposed between the resin wall 40 and the bus bar 24 covered with the resin wall 40. This highly heat conductive resin 42 is also a thermoplastic resin, for example, silicone. The high thermal conductivity resin 42 is provided so as to extend in the cooling section 36 to the flow path 38. With this configuration, the heat of the bus bar 24 moving from the electric motor 14 can be efficiently radiated to the cooling medium flowing through the flow path 38 via the high thermal conductivity resin 42.

本実施形態においては、樹脂壁４０がバスバー２４の一部を覆うように成形される場合について説明したが、本発明はこの構成に限定されない。バスバー２４から冷却部３６への放熱量を増やすとともに、バスバー２４からハウジング２０ａ内の雰囲気への放熱量を減らそうとするのであれば、ハウジング２０内におけるバスバー２４のより多くの領域を樹脂壁４０で覆うこともできる。   In this embodiment, although the case where the resin wall 40 was shape | molded so that a part of bus bar 24 might be covered was demonstrated, this invention is not limited to this structure. If the heat radiation from the bus bar 24 to the cooling unit 36 is increased and the heat radiation from the bus bar 24 to the atmosphere in the housing 20a is to be reduced, a larger area of the bus bar 24 in the housing 20 is formed on the resin wall 40. It can be covered with.

１０ 高電圧機器一体型電動機、１４ 電動機、２０ ＰＣＵ、２４ バスバー、２８ インバータ、３０ コンデンサ、３２ 制御基板、３４ 電流センサ、３６ 冷却部、３８ 流路、４０ 樹脂壁、４２ 高熱伝導性の樹脂。   10 High voltage integrated motor, 14 Motor, 20 PCU, 24 Busbar, 28 Inverter, 30 Capacitor, 32 Control board, 34 Current sensor, 36 Cooling part, 38 Flow path, 40 Resin wall, 42 High thermal conductivity resin.

Claims (4)

電動機と、
この電動機のコイルに、バスバーを介して電力を供給する高電圧機器と、
を有し、
電動機と高電圧機器とが一体的に連結された高電圧機器一体型電動機において、
冷却媒体が流れ、高電圧機器を冷却する樹脂製の冷却部を有し、
バスバーの少なくとも一部が、冷却部を形成する樹脂に覆われる、
ことを特徴とする高電圧機器一体型電動機。 An electric motor,
A high-voltage device that supplies power to the coil of the motor via the bus bar;
Have
In the high voltage equipment integrated motor in which the motor and the high voltage equipment are integrally connected,
The cooling medium flows and has a resin cooling part that cools the high-voltage equipment,
At least a part of the bus bar is covered with a resin that forms a cooling part,
A high-voltage device-integrated electric motor characterized by that. 請求項１に記載の高電圧機器一体型電動機において、
前記バスバーの少なくとも一部と前記樹脂との間に、前記樹脂より高い熱伝導性を有する樹脂が配置される、
ことを特徴とする高電圧機器一体型電動機。 The high-voltage device-integrated electric motor according to claim 1,
A resin having higher thermal conductivity than the resin is disposed between at least a part of the bus bar and the resin.
A high-voltage device-integrated electric motor characterized by that. 請求項２に記載の高電圧機器一体型電動機において、
前記高熱伝導性の樹脂は、冷却媒体が流れる流路のほうまで延びるように前記樹脂内に設けられる、
ことを特徴とする高電圧機器一体型電動機。 The high-voltage device-integrated electric motor according to claim 2,
The high thermal conductivity resin is provided in the resin so as to extend to the flow path through which the cooling medium flows.
A high-voltage device-integrated electric motor characterized by that. 請求項１から３のいずれか１つに記載の高電圧機器一体型電動機において、
バスバーの電流を検出する電流センサを有し、
前記バスバーの少なくとも一部は、電流センサより電動機のコイル側である、
ことを特徴とする高電圧機器一体型電動機。 The high-voltage device-integrated electric motor according to any one of claims 1 to 3,
It has a current sensor that detects the current of the bus bar,
At least a part of the bus bar is closer to the coil side of the electric motor than the current sensor.
A high-voltage device-integrated electric motor characterized by that.
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