JP4066537B2

JP4066537B2 - Electric compressor mounting structure

Info

Publication number: JP4066537B2
Application number: JP30752398A
Authority: JP
Inventors: 政美佐貫; 祐市津曲; 哲也武知
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 1998-10-28
Filing date: 1998-10-28
Publication date: 2008-03-26
Anticipated expiration: 2018-10-28
Also published as: JP2000130330A

Description

【０００１】
【発明の属する技術分野】
本発明は、走行用電動モータ及び内燃機関（エンジン）を有する、いわゆるハイブリット車両等において、電動モータと圧縮機とが一体となった電動圧縮機の取付構造に関するものである。なお、本明細書で言うハイブリット車両とは、走行用電動モータとエンジンとを切り換えて走行する車両は勿論、走行は走行用電動モータのみで行い、エンジンは発電のみに使用するものも含む意味である。
【０００２】
【従来の技術】
従来のエンジンのみを搭載する車両では、エンジンから駆動力を得て空調装置の圧縮機を稼働させていた。
しかし、ハイブリット車両では、車両走行状態又はバッテリの充電状態等に基づいてエンジンの運転が制御されるので、エンジンから駆動力を得て圧縮機を稼働させると、空調装置の稼働中であっても、圧縮機が停止してしまい、実質的に空調装置が停止してしまうという問題が発生する。
【０００３】
【発明が解決しようとする課題】
上記問題に対しては、例えば特開平９−５３５６５号公報に記載のごとく、電動モータと圧縮機とが一体となった電動圧縮機を使用することにより解決することができるが、電動圧縮機を単純にハイブリット車両に適用すると、以下のような問題が新たに発生する。
【０００４】
すなわち、エンジンの振動は、エンジンと車両ボディとの間に設けられた防振ゴム等の防振部材により減衰されている。このとき、電動圧縮機をエンジンに取り付けた場合、エンジンが稼働していれば、電動圧縮機の振動は、エンジン振動の一部としてエンジン振動と共に防振部材によって減衰されるので、電動圧縮機の振動は、体感上、殆ど問題がない。
【０００５】
しかし、エンジンの振動数と電動圧縮機の振動数とは大きく違うため、エンジンが停止しているときに電動圧縮機が稼働すると、エンジン用の防振部材では、圧縮機の振動を十分に減衰することができず、圧縮機の振動がエンジンを介して車室内に伝わってしまうという問題が発生する。
なお、この問題は、ハイブリット車両のみが有する問題ではなく、例えばエンジンのみを有し走行用電動モータを搭載しておらず、かつ、車両停止時にはエンジンを停止させる、いわゆるエコラン車両において、電動圧縮機を有する車両においても発生するものである。
【０００６】
本発明は、上記点に鑑み、内燃機関の停止時に電動圧縮機の振動が車室内に伝わることを抑制することを目的とする。
【０００７】
【課題を解決するための手段】
本発明は、上記目的を達成するために、以下の技術的手段を用いる。請求項１、２に記載の発明では、電動圧縮機（１００）には、電動圧縮機（１００）を内燃機関（Ｅ）に固定するためのボルト（７２０）が貫通挿入されるボルト穴（７３０）が設けられ、内燃機関（Ｅ）には、ボルト（７２０）が固定される雌ねじ（７４１）が形成された取付座（７４０）が設けられ、取付座（７４０）は、ボルト穴（７３０）の軸方向一端側のみに設けられ、弾性変形可能なゴム材料からなり、ボルト穴（７３０）に挿入配置されるとともにボルト（７２０）が貫通挿入される円筒部（７１１、７５１）と、円筒部（７１１、７５１）の軸方向一端部側からボルト（７２０）の長手方向と直交する方向に延出するフランジ部（７１２、７５２）とを有する２つの弾性部材（７１０、７５０）を備え、２つの弾性部材（７１０、７５０）は、円筒部（７１１、７５１）同士が隣り合うようにボルト（７２０）の長手方向に直列配置され、２つの弾性部材（７１０、７５０）のうち取付座（７４０）に近い側に位置する弾性部材（７１０）は、フランジ部（７１２）がボルト穴（７３０）の周縁部と取付座（７４０）との間に位置し、２つの弾性部材（７１０、７５０）のうち取付座（７４０）から離れた側に位置する弾性部材（７５０）は、フランジ部（７５２）がボルト穴（７３０）の周縁部とボルト（７２０）の頭部（７２１）との間に位置し、ボルト（７２０）の長手方向において、円筒部（７１１、７５１）同士の間に空隙のみが介在していることを特徴とする。
これにより、電動圧縮機（１００）の振動のうちボルト（７２０）の長手方向と平行な方向の振動成分は、フランジ部（７１２、７５２）にて減衰（防振）され、ボルト（７２０）の長手方向と直交する方向の振動成分は、円筒部（７１１、７５１）にて減衰（防振）されるので、３次元方向全ての振動を減衰させることができ、電動圧縮機（１００）の振動を確実に減衰（防振）させることができる。その結果、電動圧縮機（１００）の振動が内燃機関（Ｅ）に伝わることを抑制できるので、内燃機関（Ｅ）の停止時に電動圧縮機（１００）が稼働しても、電動圧縮機（１００）の振動が車室内に伝わってしまうことを抑制できる。
【００１０】
請求項３に記載の発明では、円筒部（７１１、７５１）の軸方向端部のうちフランジ部（７１２、７５２）と反対側には、弾性部材（７１０、７５０）がボルト穴（７３０）から脱落することを防止する係止手段（７１３、７５３）が形成されていることを特徴とする。これにより、ボルト（７２０）を締め付ける前に、弾性部材（７１０、７５０）がボルト穴（７３０）から脱落することを防止できるので、電動圧縮機（１００）を容易に内燃機関（Ｅ）に組み付けることができ、組み付け作業性を向上させることができる。
【００１１】
請求項４に記載の発明では、円筒部（７１１、７５１）の軸方向端部のうちフランジ部（７１２、７５２）と反対側には、ボルト穴（７３０）の内壁に向かって突出するフランジ状の突起部（７１３、７５３）が設けられ、ボルト穴（７３０）の内壁のうち突起部（７１３、７５３）に対応する部位に円周状の溝（７３１）が設けられ、円筒部（７１１、７５１）の軸方向において突起部（７１３、７５３）と溝（７３１）の内壁との間に空隙が形成されるように、突起部（７１３、７５３）と溝（７３１）とが形成され、係止手段（７１３、７５３）が突起部（７１３、７５３）であることを特徴とする。
【００１２】
因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。
【００１３】
【発明の実施の形態】
（第１実施形態）
本実施形態は、本発明に係る電動圧縮機の取付構造をハイブリット車両の空調装置（冷凍サイクル）に適用したものであって、図１は空調装置の模式図である。
【００１４】
図１中、１００は冷媒を吸入圧縮する圧縮機Ｃｐと、圧縮機Ｃｐを駆動する電動モータ（以下、モータと略す。）Ｍｏとが一体化された電動圧縮機であり、２００は電動圧縮機１００から吐出する冷媒を冷却する放熱器（凝縮器）である。
３００は放熱器２００から流出する冷媒を気相冷媒と液相冷媒とに分離するとともに、冷凍サイクル中の余剰冷媒を蓄えるレシーバ（気液分離手段）であり、４００はレシーバ３００から流出した液相冷媒を減圧する減圧器である。
【００１５】
なお、減圧器４００は、液相冷媒を蒸発させて冷凍能力を発揮する蒸発器５００の出口側での冷媒過熱度が所定値となるようにその開度が調節される、いわゆる温度式膨張弁である。６００は、車両の走行用電動モータＭ及びエンジンＥが一体となった車両駆動源であり、電動圧縮機１００は、図２に示すように、弾性変形可能なゴム材料からなる２つの防振ゴム（弾性部材）７１０、７５０を介してエンジンＥに固定されている。
【００１６】
因みに、電動圧縮機１００は、モータＭｏ側がエンジンＥの重心側に位置するとともに、モータＭｏの軸方向がエンジンＥのクランク軸方向と一致する（平行となる）ようにしてエンジンＥに固定される。また、電動圧縮機１００のうちモータＭｏには、電動圧縮機１００をエンジンＥに固定するためのボルト７２０が貫通挿入されるボルト穴７３０が形成され、一方、エンジンＥには、ボルト７２０が固定される雌ねじ７４１が形成された取付座７４０が設けられている。
【００１７】
そして、防振ゴム７１０は、ボルト穴７３０内に挿入配置され、かつ、ボルト７２０が貫通挿入される円筒部７１１と、電動圧縮機１００（モータＭｏ）とエンジンＥとの間に位置して円筒部７１１の軸方向端部側からボルト７２０の長手方向と直交する方向に延出するフランジ部７１２とを有して形成されている。
また、ボルト７２０の頭部７２１側にも防振ゴム７５０が配設されており、この防振ゴム７５０も防振ゴム７１０と同様に、ボルト７２０が貫通挿入される円筒部７５１と、ボルト７２０の長手方向と直交する方向に延出するフランジ部７５２とを有して形成されている。
【００１８】
そして、エンジンＥとフランジ部７１２との間、及び頭部７２１とフランジ部７５２との間には金属製のプレート７６１、７６２が配設され、これら両プレート７６１、７６２には、ボルト穴７３０及び円筒部７１１、７５１を貫通するように配設された金属製のパイプ７７０の軸方向端部がそれぞれ接触している。
また、ボルト７２０は、両プレート７６１、７６２をその厚み方向に貫通するとともに、パイプ７７０内を貫通して雌ねじ７４１に到達している。
【００１９】
次に、本実施形態の特徴を述べる。
本実施形態によれば、電動圧縮機１００は、防振ゴム７１０、７５０を介してエンジンＥに固定（マウント）されているので、電動圧縮機１００の振動がエンジンＥに伝わることを抑制できる。したがって、エンジンＥの停止時に電動圧縮機１００が稼働しても、電動圧縮機１００の振動が車室内に伝わってしまうことを抑制できる。
【００２０】
また、防振ゴム７１０、７５０は、ボルト７２０が貫通挿入される円筒部７１１、７５１と、ボルト７２０の長手方向と直交する方向に延出するフランジ部７１２、７５２とから形成されているので、電動圧縮機１００の振動のうちボルト７２０の長手方向と平行な方向の振動成分は、フランジ部７１２、７５２にて減衰（防振）され、ボルト７２０の長手方向と直交する方向の振動成分は、円筒部７１１、７５１にて減衰（防振）される。したがって、３次元方向全ての振動を減衰させることができるので、電動圧縮機１００の振動を確実に減衰（防振）させることができる。
【００２１】
また、弾性変形可能な弾性部材として、ゴム製の防振ゴムを使用しているので、防振ゴム７１０、７５０が断熱部材として機能し、エンジンＥからの熱が電動圧縮機１００に伝わることを抑制することができる。したがって、電動圧縮機１００の圧縮効率及び信頼性が低下することを防止できる。
（第２実施形態）
本実施形態は、円筒部７１１、７５１の軸方向端部のうちフランジ部７１２、７５２と反対側に、ボルト穴７３０の内壁に向かって突出するフランジ状の突起部（係止手段）７１３、７５３を設けるとともに、ボルト穴７３０の内壁のうち突起部７１３、７５３に対応する部位に円周状の溝７３１を形成したものである。
【００２２】
これにより、防振ゴム７１０、７５０が突起部７１３、７５３及び溝７３１にて係止されるので、防振ゴム７１０、７５０がボルト穴７３０から脱落することを防止できる。
したがって、ボルト７２０を締め付ける前に、防振ゴム７１０、７５０がボルト穴７３０から脱落することを防止できるので、電動圧縮機１００を容易にエンジンＥに組み付けることができ、組み付け作業性を向上させることができる。
【００２３】
ところで、上述の実施形態では、弾性変形可能な弾性部材として、ゴム製の防振ゴムを使用したが、本発明はこれに限定されるものではなく、金属バネ等のその他の弾性材料にて弾性部材を構成してもよい。
また、防振ゴム７１０、７５０は、上述の実施形態のごとく、円筒部７１１、７５１とフランジ部７１２、７５２とからなる形状に限定されるものではなく、その他の形状であってもよい。
【００２４】
また、上述の実施形態では、ボルト７２０の頭部７２１側にも防振ゴム７５２を配設したが、頭部７２１側の防振ゴム７５２を廃止してもよい。
また、第２実施形態では、防振ゴム７１０、７５０がボルト穴７３０から脱落することを防止するために、ボルト穴７３０の内壁に溝７３１を形成したが、溝７３１を廃止してもよい。
【００２５】
また、突起部７１３、７５３を廃止して、ボルト穴７３０の内壁に円筒部７１１、７５１に向けて突出する突起部を設けて防振ゴム７１０、７５０がボルト穴７３０から脱落することを防止する係止手段を構成してもよい。
さらに、本発明はハイブリット車両にその適用が限定されるものではなく、エンジンのみを有し走行用電動モータを搭載しておらず、かつ、車両停止時にはエンジンを停止させる、いわゆるエコラン車両にも適用することができる。
【図面の簡単な説明】
【図１】空調装置の模式図である。
【図２】第１実施形態に係る電動圧縮機の取付構造を示す模式図である。
【図３】第２実施形態に係る電動圧縮機の取付構造を示す模式図である。
【符号の説明】
１００…電動圧縮機、７１０、７５０…防振ゴム（弾性部材）、
７２０…ボルト、Ｅ…エンジン（内燃機関）。[0001]
BACKGROUND OF THE INVENTION
The present invention has a moving electric motor and an internal combustion engine, in so-called hybrid vehicle or the like, an electric motor and the compressor is related to mounting structure for an electric compressor is integral. The hybrid vehicle mentioned in this specification includes not only a vehicle that travels by switching between a traveling electric motor and an engine, but also includes a vehicle that travels only by a traveling electric motor and the engine is used only for power generation. is there.
[0002]
[Prior art]
In a vehicle equipped only with a conventional engine, the compressor of the air conditioner is operated by obtaining driving force from the engine.
However, in a hybrid vehicle, the operation of the engine is controlled based on the vehicle running state or the state of charge of the battery. Therefore, if the compressor is operated by obtaining driving force from the engine, the air conditioner is in operation. The compressor stops and the air conditioner stops substantially.
[0003]
[Problems to be solved by the invention]
The above problem can be solved by using an electric compressor in which an electric motor and a compressor are integrated, as described in, for example, JP-A-9-53565. When simply applied to a hybrid vehicle, the following problems are newly generated.
[0004]
That is, the vibration of the engine is attenuated by a vibration isolating member such as a vibration isolating rubber provided between the engine and the vehicle body. At this time, when the electric compressor is attached to the engine, if the engine is operating, the vibration of the electric compressor is attenuated by the vibration isolation member together with the engine vibration as part of the engine vibration. Vibration has almost no problem in terms of experience.
[0005]
However, the frequency of the engine and the frequency of the electric compressor are very different. Therefore, if the electric compressor is operated when the engine is stopped, the vibration isolator for the engine will sufficiently attenuate the vibration of the compressor. This causes a problem that the vibration of the compressor is transmitted to the passenger compartment through the engine.
In addition, this problem is not a problem only in the hybrid vehicle. For example, in an eco-run vehicle that has only an engine and is not equipped with an electric motor for traveling, and stops the engine when the vehicle is stopped, the electric compressor This also occurs in a vehicle having
[0006]
In view of the above-described points, an object of the present invention is to suppress the vibration of an electric compressor from being transmitted to the vehicle interior when the internal combustion engine is stopped.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention uses the following technical means. In the first and second aspects of the invention, the electric compressor (100) has a bolt hole (730) through which a bolt (720) for fixing the electric compressor (100) to the internal combustion engine (E ) is inserted. ), And the internal combustion engine (E) is provided with a mounting seat (740) formed with a female screw (741) to which the bolt (720) is fixed. The mounting seat (740) has a bolt hole (730). Cylindrical portions (711, 751) that are provided only on one axial end side of the rubber member and are made of an elastically deformable rubber material and are inserted into the bolt holes (730) and through which the bolts (720) are inserted. comprising a bolt two elastic members having a flange portion extending in a direction perpendicular to the longitudinal direction of the (720) and (712,752) (710, 750) from one axial end side of the (711,751), 2 One elastic member (7 10, 750) are arranged in series in the longitudinal direction of the bolt (720) so that the cylindrical portions (711, 751) are adjacent to each other, and the side closer to the mounting seat (740) of the two elastic members (710, 750) The elastic member (710) positioned in the flange portion (712) is positioned between the peripheral edge of the bolt hole (730) and the mounting seat (740), and the mounting seat of the two elastic members (710, 750). In the elastic member (750) located on the side away from (740), the flange portion (752) is located between the peripheral portion of the bolt hole (730) and the head portion (721) of the bolt (720). in the longitudinal direction of the (720), only the gap between the adjacent cylindrical portions (711,751), characterized in that the interposed.
Thereby, the vibration component in the direction parallel to the longitudinal direction of the bolt (720) in the vibration of the electric compressor (100) is attenuated (vibrated) by the flange portions (712, 752), and the bolt (720) Since the vibration component in the direction orthogonal to the longitudinal direction is attenuated (vibrated) by the cylindrical portions (711, 751), all the vibrations in the three-dimensional direction can be attenuated, and the vibration of the electric compressor (100) can be attenuated. Can be reliably attenuated (vibrated). As a result, since the vibration of the electric compressor (100) can be suppressed from being transmitted to the internal combustion engine (E), even if the electric compressor (100) is operated when the internal combustion engine (E) is stopped, the electric compressor (100 ) Can be prevented from being transmitted to the passenger compartment.
[0010]
In the third aspect of the present invention, the elastic member (710, 750) extends from the bolt hole (730) on the opposite side of the flange portion (712, 752) from the axial end of the cylindrical portion (711, 751). Locking means (713, 753) for preventing it from falling off is formed. This prevents the elastic members (710, 750) from falling off the bolt holes (730) before tightening the bolts (720), so that the electric compressor (100) can be easily assembled to the internal combustion engine (E). It is possible to improve the assembly workability.
[0011]
In the invention according to claim 4 , a flange shape projecting toward the inner wall of the bolt hole (730) on the opposite side to the flange portion (712, 752) of the axial end portion of the cylindrical portion (711, 751). Projecting portions (713, 753) are provided, and circumferential grooves (731) are provided in portions corresponding to the projecting portions (713, 753) on the inner wall of the bolt hole (730), and the cylindrical portions (711, 753) are provided. 751), the protrusions (713, 753) and the groove (731) are formed so that a gap is formed between the protrusions (713, 753) and the inner wall of the groove (731). The stop means (713, 753) is a protrusion (713, 753) .
[0012]
Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
In this embodiment, the electric compressor mounting structure according to the present invention is applied to an air conditioner (refrigeration cycle) of a hybrid vehicle. FIG. 1 is a schematic diagram of the air conditioner.
[0014]
In FIG. 1, 100 is an electric compressor in which a compressor Cp for sucking and compressing refrigerant and an electric motor (hereinafter abbreviated as a motor) Mo for driving the compressor Cp are integrated, and 200 is an electric compressor. A heat radiator (condenser) that cools the refrigerant discharged from 100.
Reference numeral 300 denotes a receiver (gas-liquid separation means) that separates the refrigerant flowing out of the radiator 200 into a gas-phase refrigerant and a liquid-phase refrigerant and stores excess refrigerant in the refrigeration cycle, and 400 is a liquid phase that flows out of the receiver 300. This is a decompressor that decompresses the refrigerant.
[0015]
The decompressor 400 is a so-called temperature expansion valve whose degree of opening is adjusted so that the degree of refrigerant superheating on the outlet side of the evaporator 500 that evaporates liquid-phase refrigerant and exhibits refrigeration capacity becomes a predetermined value. It is. Reference numeral 600 denotes a vehicle drive source in which a vehicle driving electric motor M and an engine E are integrated, and the electric compressor 100 includes two anti-vibration rubbers made of an elastically deformable rubber material as shown in FIG. (Elastic member) It is being fixed to the engine E via 710,750 .
[0016]
Incidentally, the electric compressor 100 is fixed to the engine E such that the motor Mo side is located on the center of gravity side of the engine E and the axial direction of the motor Mo coincides with (is parallel to) the crankshaft direction of the engine E. . In addition, the motor Mo of the electric compressor 100 is formed with a bolt hole 730 through which a bolt 720 for fixing the electric compressor 100 to the engine E is inserted, while the bolt E 720 is fixed to the engine E. A mounting seat 740 in which a female screw 741 is formed is provided.
[0017]
The anti-vibration rubber 710 is inserted and disposed in the bolt hole 730 and is positioned between the cylindrical portion 711 through which the bolt 720 is inserted, and between the electric compressor 100 (motor Mo) and the engine E. The flange portion 712 extends in the direction orthogonal to the longitudinal direction of the bolt 720 from the axial end portion side of the portion 711.
In addition, a vibration isolating rubber 750 is also provided on the head 721 side of the bolt 720, and the vibration isolating rubber 750 is similar to the anti vibration isolating rubber 710, and a cylindrical portion 751 through which the bolt 720 is inserted and the bolt 720. And a flange portion 752 extending in a direction orthogonal to the longitudinal direction.
[0018]
Metal plates 761 and 762 are disposed between the engine E and the flange portion 712, and between the head portion 721 and the flange portion 752, and the bolt holes 730 and 762 are provided on both the plates 761 and 762, respectively. The axial ends of metal pipes 770 arranged so as to penetrate the cylindrical portions 711 and 751 are in contact with each other.
Further, the bolt 720 penetrates both the plates 761 and 762 in the thickness direction, and penetrates the pipe 770 to reach the female screw 741.
[0019]
Next, features of the present embodiment will be described.
According to the present embodiment, the electric compressor 100 is fixed (mounted) to the engine E via the anti-vibration rubbers 710 and 750, so that the vibration of the electric compressor 100 can be suppressed from being transmitted to the engine E. Therefore, even if the electric compressor 100 is operated when the engine E is stopped, the vibration of the electric compressor 100 can be suppressed from being transmitted to the vehicle interior.
[0020]
Further, since the anti-vibration rubbers 710 and 750 are formed of cylindrical portions 711 and 751 through which the bolts 720 are inserted and flange portions 712 and 752 extending in a direction orthogonal to the longitudinal direction of the bolts 720, Of the vibration of the electric compressor 100, the vibration component in the direction parallel to the longitudinal direction of the bolt 720 is attenuated (vibrated) by the flange portions 712 and 752, and the vibration component in the direction perpendicular to the longitudinal direction of the bolt 720 is It is attenuated (vibrated) by the cylindrical portions 711 and 751. Therefore, since all the vibrations in the three-dimensional direction can be damped, the vibration of the electric compressor 100 can be surely damped (vibrated).
[0021]
In addition, since the rubber vibration-proof rubber is used as the elastic member that can be elastically deformed, the vibration-proof rubbers 710 and 750 function as heat insulating members, and heat from the engine E is transmitted to the electric compressor 100. Can be suppressed. Therefore, it can prevent that the compression efficiency and reliability of the electric compressor 100 fall.
(Second Embodiment)
In the present embodiment, flange-like projections (locking means) 713 and 753 projecting toward the inner wall of the bolt hole 730 on the opposite side of the flanges 712 and 752 among the axial ends of the cylindrical parts 711 and 751. And a circumferential groove 731 is formed in a portion corresponding to the protrusions 713 and 753 in the inner wall of the bolt hole 730.
[0022]
Thereby, since the anti-vibration rubbers 710 and 750 are locked by the protrusions 713 and 753 and the groove 731, the anti-vibration rubbers 710 and 750 can be prevented from falling off from the bolt holes 730.
Accordingly, since the anti-vibration rubbers 710 and 750 can be prevented from dropping from the bolt holes 730 before the bolts 720 are tightened, the electric compressor 100 can be easily assembled to the engine E, and the assembling workability can be improved. Can do.
[0023]
By the way, in the above-described embodiment, the rubber vibration-proof rubber is used as the elastic member that can be elastically deformed. However, the present invention is not limited to this, and other elastic materials such as a metal spring are used for elasticity. You may comprise a member.
Further, the anti-vibration rubbers 710 and 750 are not limited to the shape including the cylindrical portions 711 and 751 and the flange portions 712 and 752 as in the above-described embodiment, and may have other shapes.
[0024]
In the above-described embodiment, the vibration isolating rubber 752 is disposed also on the head 721 side of the bolt 720, but the vibration isolating rubber 752 on the head 721 side may be eliminated.
In the second embodiment, the groove 731 is formed on the inner wall of the bolt hole 730 in order to prevent the anti-vibration rubbers 710 and 750 from dropping from the bolt hole 730. However, the groove 731 may be eliminated.
[0025]
Further, the protrusions 713 and 753 are eliminated, and protrusions protruding toward the cylindrical portions 711 and 751 are provided on the inner wall of the bolt hole 730 to prevent the vibration-proof rubbers 710 and 750 from dropping from the bolt hole 730. You may comprise a latching means.
Furthermore, the application of the present invention is not limited to hybrid vehicles, and is also applicable to so-called eco-run vehicles that have only an engine, are not equipped with an electric motor for traveling, and stop the engine when the vehicle is stopped. can do.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of an air conditioner.
FIG. 2 is a schematic diagram showing an electric compressor mounting structure according to the first embodiment.
FIG. 3 is a schematic view showing a mounting structure of an electric compressor according to a second embodiment.
[Explanation of symbols]
100: Electric compressor, 710, 750 ... Anti-vibration rubber (elastic member),
720 ... bolt, E ... engine (internal combustion engine).

Claims

Applied to a vehicle having a traveling electric motor (M) and an internal combustion engine (E);
The electric motor (Mo) is driven by an electric motor (Mo) different from the traveling electric motor (M), and the electric compressor (100) is integrated with the electric motor (Mo).
The electric compressor (100 ) is provided with a bolt hole (730) through which a bolt (720) for fixing the electric compressor (100) to the internal combustion engine (E ) is inserted,
The internal combustion engine (E) is provided with a mounting seat (740) in which a female screw (741) to which the bolt (720) is fixed is formed,
The mounting seat (740) is provided only on one axial end side of the bolt hole (730),
A cylindrical portion (711, 751) made of an elastically deformable rubber material, inserted and arranged in the bolt hole (730) and through which the bolt (720) is inserted, and an axis of the cylindrical portion (711, 751) Two elastic members (710, 750) having flange portions (712, 752) extending in a direction orthogonal to the longitudinal direction of the bolt (720) from one end of the direction ,
The two elastic members (710, 750) are arranged in series in the longitudinal direction of the bolt (720) so that the cylindrical portions (711, 751) are adjacent to each other,
Of the two elastic members (710, 750), the elastic member (710) located on the side closer to the mounting seat (740) has the flange portion (712) and the peripheral portion of the bolt hole (730). Located between the seat (740)
Of the two elastic members (710, 750), the elastic member (750) positioned on the side away from the mounting seat (740) is such that the flange portion (752) and the peripheral portion of the bolt hole (730) Located between the head (721) of the bolt (720),
Longitudinal in direction, the mounting structure for an electric compressor, characterized in that only the air gap is interposed between the adjacent said cylindrical portion (711,751) of said bolt (720).

When the vehicle is stopped, it is applied to a vehicle that stops the internal combustion engine (E),
The electric compressor (100) is mounted by an electric motor (Mo) and integrated with the electric motor (Mo).
The electric compressor (100 ) is provided with a bolt hole (730) through which a bolt (720) for fixing the electric compressor (100) to the internal combustion engine (E ) is inserted,
The internal combustion engine (E) is provided with a mounting seat (740) in which a female screw (741) to which the bolt (720) is fixed is formed,
The mounting seat (740) is provided only on one axial end side of the bolt hole (730),
Made of elastically deformable rubber material, inserted into the bolt hole (730) and disposed outside the bolt hole (730), cylindrical portions (711, 751) through which the bolt (720) is inserted. And two elastic members (710, 710 ) having flange portions (712, 752) extending in a direction orthogonal to the longitudinal direction of the bolt (720) from one axial end of the cylindrical portion (711, 751). 750) ,
The two elastic members (710, 750) are arranged in series in the longitudinal direction of the bolt (720) so that the cylindrical portions (711, 751) are adjacent to each other,
Of the two elastic members (710, 750), the elastic member (710) located on the side closer to the mounting seat (740) has the flange portion (712) and the peripheral portion of the bolt hole (730). Located between the seat (740)
Of the two elastic members (710, 750), the elastic member (750) located on the side away from the mounting seat (740) is such that the flange portion (752) and the peripheral portion of the bolt hole (730) are Located between the head (721) of the bolt (720),
Longitudinal in direction, the mounting structure for an electric compressor, characterized in that only the air gap is interposed between the adjacent said cylindrical portion (711,751) of said bolt (720).

The elastic member (710, 750) is prevented from dropping from the bolt hole (730) on the opposite side of the flange portion (712, 752) of the axial end of the cylindrical portion (711, 751). The mounting structure for an electric compressor according to claim 1 or 2 , wherein locking means (713, 753) are formed.

On the opposite side of the axial end of the cylindrical portion (711, 751) from the flange portion (712, 752), a flange-like protruding portion (713, protruding toward the inner wall of the bolt hole (730). 753),
A circumferential groove (731) is provided in a portion of the inner wall of the bolt hole (730) corresponding to the protrusion (713, 753),
In the axial direction of the cylindrical portion (711, 751), the protrusion (713, 753) and the protrusion are formed so that a gap is formed between the protrusion (713, 753) and the inner wall of the groove (731). A groove (731) is formed,
The mounting structure for an electric compressor according to claim 3, wherein the locking means (713, 753) is the protrusion (713, 753).