JP2006316756A - Vehicular motor-driven compressor - Google Patents

Vehicular motor-driven compressor Download PDF

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JP2006316756A
JP2006316756A JP2005142372A JP2005142372A JP2006316756A JP 2006316756 A JP2006316756 A JP 2006316756A JP 2005142372 A JP2005142372 A JP 2005142372A JP 2005142372 A JP2005142372 A JP 2005142372A JP 2006316756 A JP2006316756 A JP 2006316756A
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control device
housing
electric compressor
heat
capacitor
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JP4599222B2 (en
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Makoto Hattori
誠 服部
Masahiko Asai
雅彦 浅井
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Mitsubishi Heavy Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular motor-driven compressor improving reliability and durability of an element easily thermally influenced in an inverter control device. <P>SOLUTION: This vehicular motor-driven compressor 1 compresses a refrigerant of a vehicular air conditioner by driving a compression mechanism by an electric motor. The inverter control device 10 for controlling the electric motor is arranged in a protective case 11 brought into close contact with a low pressure refrigerant chamber of a housing 2 for storing the compression mechanism. A capacitor 14 being an element easily thermally influenced by the control device is divided into a plurality, and is dispersively arranged in the protective case 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、電気自動車等の車両用空調装置に使用される車両用電動圧縮機に関するものである。   The present invention relates to a vehicular electric compressor used in an air conditioner for a vehicle such as an electric vehicle.

近年、電気自動車やハイブリッド自動車のように、電気の動力を利用して走行する車両の開発及び市場への投入が急速に進んでいる。このような車両に装備される車両用空調装置では、従来の内燃機関で走行する車両とは異なり、冷媒を圧縮して送出する圧縮機の駆動にも電気を動力として利用する電動圧縮機が採用されている。
このような電動圧縮機は、圧縮機構及び電動機を同じハウジング内に内蔵した密閉型圧縮機とする構成が一般的に採用されている。さらに、車両用空調装置の電動圧縮機は、電源から入力された電力を電動機に供給して運転制御を行う別体のインバータ制御装置を備えている。 2. Description of the Related Art In recent years, vehicles that use electric power, such as electric vehicles and hybrid vehicles, have been rapidly developed and introduced into the market. In such a vehicle air conditioner equipped in such a vehicle, an electric compressor that uses electricity as power for driving a compressor that compresses and sends out refrigerant is employed, unlike a vehicle that runs on an internal combustion engine. Has been.
Such an electric compressor generally employs a configuration in which a compression mechanism and an electric motor are hermetically sealed with a built-in housing in the same housing. Furthermore, the electric compressor of the vehicle air conditioner includes a separate inverter control device that performs operation control by supplying electric power input from a power source to the electric motor.

また、インバータ回路をモータハウジングの上方側面に設けたケーシング内に収納し、インバータ回路の発熱素子であるパワートランジスタやコンデンサをケーシング内の底面に当接配置してモーターハウジング内を流れる吸入冷媒により冷却するように構成したインバータ回路一体型電動圧縮機が提案されている。この従来技術では、パワートランジスタ及びコンデンサがケーシング内の略中央位置に配置されているので、たとえば内燃機関のような輻射熱を発生する熱源が左右何れの方向に設置されている場合でも、発熱素子は同様の熱影響を受けることとなる。（たとえば、特許文献１参照）
特開２００３−２６２１８７号公報（図２など） The inverter circuit is housed in a casing provided on the upper side surface of the motor housing, and a power transistor or a capacitor, which is a heating element of the inverter circuit, is disposed in contact with the bottom surface of the casing to be cooled by sucked refrigerant flowing in the motor housing. An inverter circuit integrated electric compressor configured as described above has been proposed. In this prior art, since the power transistor and the capacitor are disposed at a substantially central position in the casing, even if a heat source that generates radiant heat, such as an internal combustion engine, is installed in either the left or right direction, It will be affected by the same heat. (For example, see Patent Document 1)
JP2003-262187A (FIG. 2 etc.)

ところで、車両用空調装置に使用される車両用電動圧縮機（以下、「電動圧縮機」と呼ぶ）は、車両走行用の駆動力を発生させる電動機や発電機駆動用の内燃機関等とともにエンジンルーム内に設置される。このため、放射熱等の影響を受けやすい設置環境となり、インバータ制御装置を構成する各種の電気・電子部品等を周囲環境から保護して動作を保証するためには、たとえば発熱体であるコンデンサの冷却や輻射熱の対策が必要となる。特に、内燃機関等の放射熱源に隣接してインバータ制御装置を設置する場合には、放射熱源に近いほど輻射熱の影響が大きくなる。
また、電動圧縮機などエンジンルーム内に設置する機器類は、設置スペースの制約から小型化することが求められる。さらに、電動圧縮機などエンジンルーム内に設置する機器類は、一般的には車両側の機器配置が優先されることから、多様な設置形態に容易に対応できることが望ましい。 Incidentally, a vehicular electric compressor (hereinafter referred to as an “electric compressor”) used in a vehicular air conditioner is an engine room together with an electric motor that generates a driving force for driving a vehicle, an internal combustion engine for driving a generator, and the like. Installed inside. For this reason, it becomes an installation environment that is easily affected by radiant heat, etc., and in order to protect the various electrical and electronic components that make up the inverter control device from the surrounding environment and to ensure operation, for example, a capacitor that is a heating element It is necessary to take measures against cooling and radiant heat. In particular, when the inverter control device is installed adjacent to a radiant heat source such as an internal combustion engine, the closer to the radiant heat source, the greater the influence of radiant heat.
In addition, equipment installed in the engine room, such as an electric compressor, is required to be downsized due to installation space limitations. Furthermore, since the equipment installed in the engine room, such as an electric compressor, is generally given priority to the equipment arrangement on the vehicle side, it is desirable that the equipment can be easily adapted to various installation forms.

このような背景から、車両用空調装置に使用される電動圧縮機においては、信頼性や耐久性を確保するため、たとえばコンデンサ等のようにインバータ制御装置を構成する熱影響を受けやすい素子の冷却や輻射熱対策が必要となり、さらに、多様な設置形態にも容易に対応できるようにしたコンデンサの設置構成が望まれる。
本発明は、上記の事情に鑑みてなされたものであり、インバータ制御装置における熱影響を受けやすい素子の信頼性や耐久性を向上させることができ、さらに、多様な設置形態にも容易に対応できる車両用電動圧縮機の提供を目的とする。 From such a background, in an electric compressor used in a vehicle air conditioner, in order to ensure reliability and durability, for example, cooling of a heat-sensitive element such as a capacitor that constitutes an inverter control device In addition, it is necessary to take countermeasures against radiant heat and to provide a capacitor installation configuration that can easily cope with various installation forms.
The present invention has been made in view of the above circumstances, can improve the reliability and durability of elements that are easily affected by heat in an inverter control device, and can easily cope with various installation forms. An object is to provide a vehicular electric compressor.

上記課題を解決するために、本発明は以下の手段を採用する。
本発明の車両用電動圧縮機は、電動機により圧縮機構を駆動して車両用空調装置の冷媒を圧縮する車両用電動圧縮機において、
前記電動機を制御する制御装置が前記圧縮機構を収納するハウジングの低圧冷媒室に密接させた筐体内に設置され、前記制御装置の熱影響を受けやすい素子を複数に分割し、前記筐体内に分散配置したことを特徴とするものである。 In order to solve the above problems, the present invention employs the following means.
An electric compressor for a vehicle of the present invention is an electric compressor for a vehicle that compresses a refrigerant of a vehicle air conditioner by driving a compression mechanism by the electric motor.
A control device for controlling the electric motor is installed in a housing in close contact with a low-pressure refrigerant chamber of a housing that houses the compression mechanism, and the heat-sensitive elements of the control device are divided into a plurality of parts and distributed in the housing It is characterized by the arrangement.

このような本発明の車両用電動圧縮機によれば、電動機を制御する制御装置が圧縮機構を収納するハウジングの低圧冷媒室に密接させた筐体内に設置され、制御装置の熱影響を受けやすい素子を複数に分割して筐体内に分散配置したので、筐体内の制御装置は低温の吸入冷媒により冷却される。そして、熱影響を受けやすい素子が筐体内に分散配置されているので、輻射熱等の熱源との距離は素子毎に異なり、熱源から遠く熱影響の小さい素子を少なくとも１つ設けることができる。   According to such an electric compressor for a vehicle of the present invention, the control device for controlling the electric motor is installed in the casing in close contact with the low-pressure refrigerant chamber of the housing that houses the compression mechanism, and is easily affected by the heat of the control device. Since the element is divided into a plurality of parts and distributed in the casing, the control device in the casing is cooled by the low-temperature suction refrigerant. Since elements that are easily affected by heat are distributed in the housing, the distance from a heat source such as radiant heat differs for each element, and at least one element that is far from the heat source and has little heat effect can be provided.

上記の車両用電動圧縮機において、前記素子は、少なくとも前記筐体内の左右に分割されて各々が並列に接続されていることが好ましく、これにより、車両用電動機を熱源の左右何れの方向に配置した場合でも、いずれか一方の熱影響が大きくなるものの、他方の熱影響は小さくなる。
この場合、前記素子は、基板を挟んで左右に分割配置された基板外コンデンサであることが好ましい。 In the above-described vehicular electric compressor, it is preferable that the element is divided into at least right and left in the casing and connected in parallel to each other, whereby the vehicular electric motor is arranged in any direction on the left or right of the heat source. Even in this case, the thermal effect of either one is increased, but the thermal effect of the other is reduced.
In this case, the element is preferably an off-substrate capacitor that is divided into left and right portions with a substrate interposed therebetween.

本発明の車両用電動圧縮機によれば、電動機の制御装置をハウジングの低圧冷媒室に密接させた筐体内に設置したので、筐体内の制御装置は低温の吸入冷媒により冷却される。さらに、制御装置を構成する熱影響を受けやすい素子は、複数に分割して筐体内に分散配置されているので、輻射熱等の熱源との距離は分散配置した素子毎に異なり、熱源から遠く熱影響の小さい素子を少なくとも１つ設けることができる。具体的には、左右に分割して各々を電気的に並列な接続とすれば、左右のいずれか一方が受ける輻射熱の影響を小さくすることができる。このため、熱影響を受けやすい素子が筐体内で吸入冷媒により冷却されるだけでなく、熱影響のリスクを分散した素子の配置として信頼性や耐久性を向上させることができる。
また、素子を分散配置した構成は、たとえば熱影響を受けやすく比較的大きな設置スペースを要するコンデンサを分散配置することにより、必要なコンデンサ容量に応じて多様な設置形態が可能となる。具体的には、容量に余裕があれば熱影響の小さい側だけにコンデンサを設置したり、あるいは、熱影響の大きい側と小さい側とで設置するコンデンサ容量を変えることもできるので、コストの低減や軽量化が可能になる。 According to the electric compressor for a vehicle of the present invention, the control device for the electric motor is installed in the housing in close contact with the low-pressure refrigerant chamber of the housing, so that the control device in the housing is cooled by the low-temperature intake refrigerant. Furthermore, since the heat-sensitive elements that make up the control device are divided into a plurality of parts and distributed in the housing, the distance from the heat source such as radiant heat differs for each element that is distributed and is far from the heat source. At least one element having a small influence can be provided. Specifically, if it is divided into left and right and each is electrically connected in parallel, the influence of radiant heat received by either one of the left and right can be reduced. For this reason, not only the elements that are easily affected by heat are cooled by the suction refrigerant in the housing, but also the reliability and durability can be improved as an arrangement of the elements in which the risk of heat effects is dispersed.
In addition, the configuration in which the elements are arranged in a distributed manner enables various installation forms according to the required capacitor capacity, for example, by disposing capacitors that are easily affected by heat and require a relatively large installation space. Specifically, if there is a margin in capacity, capacitors can be installed only on the side with less heat influence, or the capacitor capacity can be changed between the side with larger heat influence and the side with less heat influence, reducing the cost. And lighter weight.

以下、本発明にかかる車両用電動圧縮機の一実施形態について、図１ないし図３を参照して説明する。
本実施形態で説明する車両用電動圧縮機は、たとえば電気自動車やハイブリッド自動車のように、電気の動力を利用して走行する車両に装備される車両用空調装置の冷媒回路に使用される。この車両用電動圧縮機は、低温低圧のガス冷媒（吸入冷媒）を圧縮して冷媒回路に送出する圧縮機構を駆動するため、電気を動力として利用する電動機を採用したものである。
このような車両用電動圧縮機（以下、「電動圧縮機」と呼ぶ）１は、たとえばスクロール圧縮機構等の圧縮機構（不図示）及び電動機（不図示）を同じハウジング２内に内蔵する密閉型圧縮機の構成が一般的に採用されている。また、このような電動圧縮機１は、電源から入力された電力を電動機に供給して運転制御を行うインバータ制御装置１０を備えている。このインバータ制御装置１０は、電動圧縮機１のハウジング２に密接して一体的に設置されている。そして、インバータ制御装置１０は、インバータ制御装置１０に給電を行う給電部２０と、インバータ制御装置１０及び給電部２０の動作を制御する電源制御装置２１と電気的に接続されている。 Hereinafter, an embodiment of an electric compressor for a vehicle according to the present invention will be described with reference to FIGS. 1 to 3.
The vehicular electric compressor described in the present embodiment is used in a refrigerant circuit of a vehicular air conditioner installed in a vehicle that travels using electric power, such as an electric vehicle or a hybrid vehicle. This electric compressor for vehicles employs an electric motor that uses electricity as power to drive a compression mechanism that compresses low-temperature and low-pressure gas refrigerant (intake refrigerant) and sends it to a refrigerant circuit.
Such a vehicular electric compressor (hereinafter referred to as “electric compressor”) 1 is a hermetically sealed type in which a compression mechanism (not shown) such as a scroll compression mechanism and an electric motor (not shown) are built in the same housing 2. A compressor configuration is generally employed. Moreover, such an electric compressor 1 is provided with the inverter control apparatus 10 which supplies the electric power input from the power supply to an electric motor, and performs operation control. The inverter control device 10 is installed in close contact with the housing 2 of the electric compressor 1. The inverter control device 10 is electrically connected to a power supply unit 20 that supplies power to the inverter control device 10 and a power supply control device 21 that controls operations of the inverter control device 10 and the power supply unit 20.

ハウジング２は、軸線を略水平にして設置される中空円柱形状をなしている。
具体的に説明すると、ハウジング２は、図２及び図３に示すように、一端に開口部を有し内部に電動機が収納される有底円筒形状の第一収納部（ハウジング本体）２ａと、一端に開口部を有し内部に圧縮機構が収納される有底円筒形状の第二収納部（蓋部）２ｂとに二分割されている。第一収納部２ａ及び第二収納部２ｂは、互いの開口部どうしを向かい合った状態にして接合し、両開口部に設けたフランジ部をボルト・ナット等により着脱可能に固定して一体化されている。 The housing 2 has a hollow cylindrical shape that is installed with its axis substantially horizontal.
Specifically, as shown in FIGS. 2 and 3, the housing 2 has a bottomed cylindrical first storage portion (housing main body) 2a having an opening at one end and storing the electric motor therein. It is divided in two into a bottomed cylindrical second storage part (lid part) 2b having an opening at one end and storing the compression mechanism therein. The first storage part 2a and the second storage part 2b are joined together with the openings facing each other, and the flanges provided at both openings are fixed detachably by bolts, nuts, etc. ing.

本実施形態では、第一収納部２ａの内部に図示しない圧縮機構の低圧冷媒室が形成されており、第一収納部２ａの外周面には、内部の低圧冷媒室に連通する冷媒取入口３が設けられている。この低圧冷媒室は、冷媒取入口３を介して車両用空調装置の冷媒回路に連結され、室内熱交換器または室外熱交換器を通過して気化した低温低圧のガス冷媒が送り込まれるようになっている。
すなわち、第一収納部２ａの外周面及び底面は、特に、冷媒取入口３の近傍部分が吸入冷媒である低温低圧のガス冷媒によって冷やされるため、ハウジング２の他の部分に比べて低温となる。 In the present embodiment, a low-pressure refrigerant chamber of a compression mechanism (not shown) is formed inside the first storage part 2a, and a refrigerant inlet 3 communicating with the internal low-pressure refrigerant chamber is formed on the outer peripheral surface of the first storage part 2a. Is provided. The low-pressure refrigerant chamber is connected to the refrigerant circuit of the vehicle air conditioner via the refrigerant intake 3, and the low-temperature and low-pressure gas refrigerant evaporated through the indoor heat exchanger or the outdoor heat exchanger is sent into the low-pressure refrigerant chamber. ing.
That is, the outer peripheral surface and the bottom surface of the first storage portion 2a are cooled in comparison with other portions of the housing 2 because the portion near the refrigerant intake 3 is cooled by the low-temperature and low-pressure gas refrigerant that is the suction refrigerant. .

ハウジング２の上面には、図１に示すように、第一収納部２ａの長手方向に沿って圧縮機基台４が設けられており、この圧縮機基台４上には、電気部品及び電子部品等の電装部品で構成されるインバータ制御装置１０の制御機器類を収納してインバータ室を形成する筐体の保護ケース１１が設けられている。
ここで、圧縮機基台４及び保護ケース１１は、たとえばアルミニウムやアルミニウム基合金等のように熱伝導率が高く、しかも、軽量の材質によって構成される。また、インバータ制御装置１０は、保護ケース１１内に収納設置されたＣＰＵ等を含む基板１２、左右一対のパワー素子１３及び基板１２の外部に配設された左右一対のコンデンサ１４とを具備して構成される。 As shown in FIG. 1, a compressor base 4 is provided on the upper surface of the housing 2 along the longitudinal direction of the first storage portion 2 a. On the compressor base 4, electric components and electronic A protective case 11 is provided for a housing that houses the control equipment of the inverter control device 10 composed of electrical components such as components and forms an inverter chamber.
Here, the compressor base 4 and the protective case 11 are made of a light material having a high thermal conductivity such as aluminum or an aluminum-based alloy. The inverter control device 10 includes a board 12 including a CPU and the like housed in a protective case 11, a pair of left and right power elements 13, and a pair of left and right capacitors 14 disposed outside the board 12. Composed.

コンデンサ１４には、平滑コンデンサ等が使用される。左右一対のコンデンサ１４は、何れも圧縮機基台４の上面に密接して配置された基板外コンデンサであり、低温の圧縮機基台４に直接接触して吸熱・冷却される。
左右一対のパワー素子１３及びコンデンサ１４は、何れも基板１２を挟んで両側に配置され、電気的には各々が配線１５を介して基板１２と並列に接続されている。
なお、インバータ制御部１０の基板１２、パワー素子１３及びコンデンサ１４等の電装部品は、当然ながら保護ケース１１及び圧縮機基台４と絶縁されている。 A smoothing capacitor or the like is used for the capacitor 14. Each of the pair of left and right capacitors 14 is an off-substrate capacitor disposed in close contact with the upper surface of the compressor base 4, and directly contacts the low-temperature compressor base 4 and is absorbed and cooled.
The pair of left and right power elements 13 and the capacitor 14 are both arranged on both sides of the substrate 12, and each is electrically connected in parallel to the substrate 12 via the wiring 15.
Note that the electrical components such as the substrate 12, the power element 13, and the capacitor 14 of the inverter control unit 10 are naturally insulated from the protective case 11 and the compressor base 4.

上述した構成により、インバータ制御装置１０を一体化した電動圧縮機１は、たとえばエンジンルーム内の内燃機関に隣接して設置された場合でも、左右のいずれか一方（図１の場合は紙面の左側）が熱源に極めて近づくことになる。しかし、他方（図１の場合は紙面の右側）は熱源から離れた位置に配設されることとなるので、配置環境としては有利になる。このため、リスク分散の観点から見ると、左側に配置されたコンデンサ１４の設置環境が厳しく信頼性が低下する場合でも、右側のコンデンサ１４の信頼性を確保して電動圧縮機１の駆動を確保できる。
また、並列接続による分配配置の構成は、予め熱源の方向が分かっている場合、設置スペース及びコンデンサ容量の問題を解消できれば熱影響の小さい右側のみにコンデンサ１４を配置したり、あるいは、熱影響の小さい側にできるだけ大きなコンデンサ容量を分配した配置を採用するなど、多様な設置形態にも容易に対応できる With the above-described configuration, the electric compressor 1 in which the inverter control device 10 is integrated is, for example, either left or right (in the case of FIG. 1, on the left side of the page) even when installed adjacent to the internal combustion engine in the engine room. ) Will be very close to the heat source. However, the other (in the case of FIG. 1, the right side of the paper surface) is arranged at a position away from the heat source, which is advantageous as an arrangement environment. For this reason, from the viewpoint of risk dispersion, even when the installation environment of the capacitor 14 disposed on the left side is severe and the reliability decreases, the reliability of the right capacitor 14 is ensured and the drive of the electric compressor 1 is ensured. it can.
Also, in the configuration of distribution arrangement by parallel connection, when the direction of the heat source is known in advance, if the problem of installation space and capacitor capacity can be solved, the capacitor 14 is arranged only on the right side where the heat influence is small, or Easily adapt to various installation forms, such as adopting an arrangement that distributes as much capacitor capacity as possible on the small side.

このように、上述した本発明によれば、インバータ制御装置１０をハウジング２の低圧冷媒室に密接させた保護ケース１１内に設置したので、保護ケース１１内のインバータ制御装置１０は低温の吸入冷媒により冷却される。さらに、インバータ制御装置１０を構成する熱影響を受けやすい素子、具体的にはパワー半導体１３やコンデンサ１４は、複数に分割して保護ケース１１内に分散配置されているので、エンジンルーム内に設置した場合であっても、内燃機関のような輻射熱等の熱源との距離は分散配置した素子毎に異なるので、熱源から遠く熱影響の小さい素子を少なくとも１つ確保することができる。
すなわち、コンデンサ１４等を左右に分割して各々を電気的に並列な接続とすれば、左右のいずれか一方が受ける輻射熱の影響を小さくすることができる。このため、熱影響を受けやすい素子が保護ケース１１内で吸入冷媒により冷却されるだけでなく、熱影響のリスクが分散する素子の配置となるので、インバータ制御部１０及び電動圧縮機１の信頼性や耐久性を向上させることができる。 Thus, according to the present invention described above, since the inverter control device 10 is installed in the protective case 11 in close contact with the low-pressure refrigerant chamber of the housing 2, the inverter control device 10 in the protective case 11 is a low-temperature suction refrigerant. It is cooled by. Furthermore, the heat-sensitive elements constituting the inverter control device 10, specifically, the power semiconductor 13 and the capacitor 14 are divided into a plurality of parts and distributed in the protective case 11, so that they are installed in the engine room. Even in such a case, since the distance from the heat source such as radiant heat such as the internal combustion engine is different for each of the dispersed elements, it is possible to secure at least one element far from the heat source and having a small thermal effect.
That is, if the capacitor 14 or the like is divided into left and right and each is electrically connected in parallel, the influence of radiant heat received by either the left or right can be reduced. For this reason, since the elements that are easily affected by heat are not only cooled by the suction refrigerant in the protective case 11 but also the elements that disperse the risk of heat influence are provided, the reliability of the inverter control unit 10 and the electric compressor 1 is improved. And durability can be improved.

また、コンデンサ１４等の素子を分散配置した構成は、特に熱影響を受けやすく比較的大きな設置スペースを要するコンデンサ１４を分散配置することにより、必要なコンデンサ容量に応じて多様な設置形態が可能となる。すなわち、コンデンサ容量に余裕があれば熱影響の小さい側にだけにコンデンサ１４を設置したり、あるいは、熱影響の大きい側と小さい側とで設置するコンデンサ容量を変えることもできるので、インバータ制御部１０及び電動圧縮機１のコスト低減や軽量化が可能になる。
なお、本発明は上述した実施形態に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適宜変更することができる。 In addition, the configuration in which the elements such as the capacitors 14 are dispersedly arranged can be variously installed depending on the required capacitor capacity by disposing the capacitors 14 that are particularly susceptible to heat and require a relatively large installation space. Become. That is, if there is a margin in the capacitor capacity, the capacitor 14 can be installed only on the side where the heat effect is small, or the capacitor capacity can be changed between the side where the heat effect is large and the side where the heat effect is small. 10 and the electric compressor 1 can be reduced in cost and weight.
In addition, this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary of this invention, it can change suitably.

本発明の一実施形態に係る車両用電動圧縮機の構成例を示す図で、インバータ制御部内をハウジングの底面方向から見た縦断面図である。It is a figure which shows the structural example of the electric compressor for vehicles which concerns on one Embodiment of this invention, and is the longitudinal cross-sectional view which looked at the inside of an inverter control part from the bottom face direction of the housing. インバータ制御部の内部構成例を示す図で、車両用電動圧縮機の部分断面側面図である。It is a figure which shows the internal structural example of an inverter control part, and is a partial cross section side view of the electric compressor for vehicles. 本発明の一実施形態に係る車両用電動圧縮機の構成例を示す斜視図である。1 is a perspective view illustrating a configuration example of an electric compressor for a vehicle according to an embodiment of the present invention.

符号の説明Explanation of symbols

１ 車両用電動圧縮機
２ ハウジング
２ａ 第一収納部
２ｂ 第二収納部
３ 冷媒取入口
４ 圧縮機基台
１０ インバータ制御装置
１１ 保護ケース（筐体）
１２ 基板（電装部品）
１３ パワー素子（電装部品）
１４ コンデンサ
１５ 配線 DESCRIPTION OF SYMBOLS 1 Vehicle electric compressor 2 Housing 2a 1st accommodating part 2b 2nd accommodating part 3 Refrigerant intake 4 Compressor base 10 Inverter control apparatus 11 Protective case (housing | casing)
12 Board (electric parts)
13 Power elements (electrical parts)
14 Capacitor 15 Wiring

Claims (3)

電動機により圧縮機構を駆動して車両用空調装置の冷媒を圧縮する車両用電動圧縮機において、
前記電動機を制御する制御装置が前記圧縮機構を収納するハウジングの低圧冷媒室に密接させた筐体内に設置され、前記制御装置の熱影響を受けやすい素子を複数に分割して前記筐体内に分散配置したことを特徴とする車両用電動圧縮機。 In the vehicle electric compressor for driving the compression mechanism by the electric motor and compressing the refrigerant of the vehicle air conditioner,
A control device for controlling the motor is installed in a housing in close contact with a low-pressure refrigerant chamber of a housing that houses the compression mechanism, and the heat-sensitive elements of the control device are divided into a plurality of parts and distributed in the housing An electric compressor for a vehicle characterized by being arranged. 前記素子は、少なくとも前記筐体内の左右に分割されて各々が並列に接続されていることを特徴とする請求項１に記載の車両用電動圧縮機。   The vehicular electric compressor according to claim 1, wherein the element is divided into at least right and left in the casing and each of the elements is connected in parallel. 前記素子が、基板を挟んで左右に分割配置された基板外コンデンサであることを特徴とする請求項２に記載の車両用電動圧縮機。   The vehicular electric compressor according to claim 2, wherein the element is an off-board capacitor that is divided into left and right sides with a board interposed therebetween.
JP2005142372A 2005-05-16 2005-05-16 Electric compressor for vehicles Expired - Fee Related JP4599222B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002339865A (en) * 2001-05-17 2002-11-27 Toyota Industries Corp Compressor for vehicular air conditioning and air conditioner provided with the same
JP2003222078A (en) * 2002-01-30 2003-08-08 Denso Corp Motor compressor
JP2003262187A (en) * 2002-03-07 2003-09-19 Denso Corp Electric compressor
JP2004063681A (en) * 2002-07-26 2004-02-26 Hitachi Unisia Automotive Ltd Semiconductor device
JP2004162618A (en) * 2002-11-13 2004-06-10 Denso Corp Horizontal inverter type electric compressor for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002339865A (en) * 2001-05-17 2002-11-27 Toyota Industries Corp Compressor for vehicular air conditioning and air conditioner provided with the same
JP2003222078A (en) * 2002-01-30 2003-08-08 Denso Corp Motor compressor
JP2003262187A (en) * 2002-03-07 2003-09-19 Denso Corp Electric compressor
JP2004063681A (en) * 2002-07-26 2004-02-26 Hitachi Unisia Automotive Ltd Semiconductor device
JP2004162618A (en) * 2002-11-13 2004-06-10 Denso Corp Horizontal inverter type electric compressor for vehicle

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