JP2001309506A - Inverter circuit device for driving vehicle traveling motor and cooling method thereof - Google Patents
Inverter circuit device for driving vehicle traveling motor and cooling method thereofInfo
- Publication number
- JP2001309506A JP2001309506A JP2000124504A JP2000124504A JP2001309506A JP 2001309506 A JP2001309506 A JP 2001309506A JP 2000124504 A JP2000124504 A JP 2000124504A JP 2000124504 A JP2000124504 A JP 2000124504A JP 2001309506 A JP2001309506 A JP 2001309506A
- Authority
- JP
- Japan
- Prior art keywords
- air
- cooling
- evaporator
- vehicle
- conditioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Inverter Devices (AREA)
- Hybrid Electric Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Air-Conditioning For Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、車両走行トルクに
関連するエネルギ−を発生する車両走行モ−タ駆動用イ
ンバータ回路装置及びその冷却方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverter circuit device for driving a vehicle running motor for generating energy related to a vehicle running torque and a cooling method thereof.
【０００２】[0002]
【従来の技術】内燃機関と回転電機とを用いて走行動力
を得るハイブリッド自動車や、燃料電池又は二次電池の
電力により駆動される回転電機を用いて走行動力を得る
燃料電池車や電気自動車（電池自動車と総称する）で
は、直流電力を交流電力に変換して回転電機に給電する
三相インバータ回路装置に用いる半導体素子の冷却が重
要となる。2. Description of the Related Art A hybrid vehicle that obtains running power using an internal combustion engine and a rotating electric machine, a fuel cell vehicle or an electric vehicle that obtains running power using a rotating electric machine driven by electric power of a fuel cell or a secondary battery ( It is important to cool a semiconductor element used in a three-phase inverter circuit device that converts DC power into AC power and supplies power to a rotating electric machine.
【０００３】この種の三相インバータ回路装置には、Ｉ
ＧＢＴ、ＢＰＴ、ＭＯＳＴなどの電力用半導体スイッチ
ング素子がたとえば６個用いられ、場合によってはフラ
イホイルダイオ−ドが同数用いられるが、これらの電力
用半導体スイッチング素子の温度限界は極めてシビアで
あるために、電力用半導体スイッチング素子を冷凍サイ
クル装置の冷媒で冷却することが好適と考えられる。A three-phase inverter circuit device of this kind includes an I
For example, six power semiconductor switching elements such as GBT, BPT, and MOST are used, and in some cases, the same number of flywheel diodes are used. However, since the temperature limit of these power semiconductor switching elements is extremely severe, It is considered preferable to cool the power semiconductor switching element with the refrigerant of the refrigeration cycle device.
【０００４】特に、この種の車両用途では車両が車両空
調用冷凍サイクル装置を搭載するために、この車両空調
用冷凍サイクル装置の冷媒を車両走行モ−タ駆動用イン
バータ回路装置の冷却に使うことにより、冷凍サイクル
装置の増設を回避できるため、好都合である。In particular, in this type of vehicle application, since a vehicle is equipped with a refrigeration cycle device for vehicle air conditioning, the refrigerant of the refrigeration cycle device for vehicle air conditioning is used for cooling an inverter circuit device for driving a vehicle traveling motor. Thus, it is possible to avoid adding a refrigeration cycle device, which is convenient.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、この車
両空調用冷凍サイクル装置の冷媒により車両走行モ−タ
駆動用インバータ回路装置を冷却する方式（以下、車両
空調冷媒冷却式インバ−タ回路装置という）では、車両
空調のために冷凍サイクル装置の運転が不要な場合でも
車両走行のために車両空調用冷凍サイクル装置を運転せ
ざるを得ず、その結果、この車両空調用冷凍サイクル装
置のエバポレ−タが車両空調用気流を冷却してしまうた
め、空調フィ−リングが低下する欠点、もしくは、この
空調フィ−リングを快適に保つために車両走行モ−タ駆
動用インバータ回路装置の発熱を制限するといった不具
合があった。However, a method of cooling an inverter circuit device for driving a vehicle running motor with a refrigerant of the refrigeration cycle device for vehicle air conditioning (hereinafter referred to as a vehicle air conditioning refrigerant cooling type inverter circuit device). Therefore, even when the operation of the refrigeration cycle apparatus is not necessary for air conditioning of the vehicle, the refrigeration cycle apparatus for vehicle air conditioning must be operated for running the vehicle. As a result, the evaporator of the refrigeration cycle apparatus for vehicle air conditioning is required. Cooling the airflow for air-conditioning of the vehicle, thereby reducing the air-conditioning filling, or limiting the heat generation of the inverter circuit device for driving the vehicle running motor to keep the air-conditioning filling comfortable. There was a defect.
【０００６】本発明は上記問題点に鑑みなされたもので
あり、空調フィ−リングの低下や車両走行モ−タ駆動用
インバータ回路の出力制限を必要としない車両走行モ−
タ駆動用インバータ回路装置を提供することをその目的
としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in consideration of the above circumstances.
It is an object of the present invention to provide an inverter circuit device for driving a motor.
【０００７】[0007]
【課題を解決するための手段】請求項１記載の車両走行
モ−タ駆動用インバータ回路装置の冷却方法によれば、
車両走行モ−タを駆動制御するインバ−タ回路部の冷却
部材に車両空調用冷凍サイクル装置の冷媒を貫流させ、
空調空気流の冷却が不要な場合に走行する場合に車両空
調用冷凍サイクル装置のエバポレ−タによる前記空調空
気流の冷却を阻止することを特徴としている。According to the cooling method of the inverter circuit device for driving the vehicle running motor according to the first aspect of the present invention,
The refrigerant of the refrigeration cycle device for vehicle air conditioning flows through the cooling member of the inverter circuit unit for controlling the driving of the vehicle running motor,
The invention is characterized in that the cooling of the conditioned air flow by an evaporator of the refrigeration cycle device for vehicle air conditioning is prevented when the vehicle travels when cooling of the conditioned air flow is unnecessary.
【０００８】請求項２記載の車両走行モ−タ駆動用イン
バータ回路装置は、車両空調用冷凍サイクル装置の冷媒
が貫流する冷却部材を有し、車両走行モ−タを駆動制御
するインバ−タ回路部と、前記インバ−タ回路部を駆動
するにもかかわらず前記車両空調用冷凍サイクル装置の
エバポレ−タによる車室吹き出し空気流の冷却が要求さ
れない場合に、前記車両空調用冷凍サイクル装置を運転
しかつ前記エバポレ−タによる前記車室吹き出し空気流
の冷却を抑止する車室吹き出し空気流冷却抑止手段とを
備えることを特徴としている。According to a second aspect of the present invention, there is provided an inverter circuit device for driving a vehicle running motor, which has a cooling member through which a refrigerant of a refrigeration cycle device for a vehicle air conditioner flows, and controls the driving of the vehicle running motor. Operating the refrigeration cycle device for vehicle air-conditioning when the evaporator of the refrigeration cycle device for vehicle air-conditioning does not require cooling of the airflow blown out of the passenger compartment despite the fact that the inverter circuit and the inverter circuit are driven. And a cooling means for suppressing the cooling of the airflow blown out of the vehicle compartment by the evaporator.
【０００９】請求項１、２記載の本構成によれば、車両
走行モ−タ駆動用インバータ回路装置（以下、単にイン
バ−タ装置ともいう）を車両空調用冷凍サイクル装置
（以下、単に冷凍装置ともいう）の冷媒で冷却すること
ができるので、大出力のインバ−タ装置を小型軽量化す
ることができる。According to the present invention, an inverter circuit device for driving a vehicle running motor (hereinafter, also simply referred to as an inverter device) is provided with a refrigeration cycle device for vehicle air conditioning (hereinafter, simply referred to as a refrigeration device). ), It is possible to reduce the size and weight of a high-output inverter device.
【００１０】また、冷凍装置は元来、車両空調のために
車両に装備されたものを兼用するので、冷却装置構成が
複雑化し、コストが増大することを抑止することができ
る。Further, since the refrigerating device originally used also for the vehicle for air conditioning, the structure of the cooling device can be prevented from becoming complicated and the cost from increasing.
【００１１】更に、空調空気流の冷却を必要としない車
両走行時には、冷凍装置の空調空気流冷却用エバポレ−
タによる空調空気流の冷却を阻止乃至抑止するので、空
調フィ−リングが悪化したり、エバポレ−タで低温とな
った空調空気流を必要温度までヒ−タで再加熱する必要
がなく、エネルギ−ロスの増大を抑止しつつ空調フィ−
リングの悪化を防止することができる。Further, when the vehicle does not require cooling of the air-conditioned air flow, the evaporator for cooling the air-conditioned air flow of the refrigeration system is used.
Since the cooling of the air-conditioning airflow by the heater is prevented or suppressed, the air-conditioning filling is not deteriorated, and the air-conditioning airflow, which has been cooled by the evaporator, does not need to be reheated to the required temperature by the heater. -Air-conditioning filter while suppressing increase in loss-
The deterioration of the ring can be prevented.
【００１２】請求項３記載の構成によれば請求項２記載
の車両搭載冷媒冷却型半導体装置において更に、前記イ
ンバ−タ回路部の前記冷却部材と前記エバポレ−タと
は、前記冷凍装置の低圧回路部にて並列接続され、前記
空調空気流冷却抑止手段は、前記エバポレ−タとに供給
する低圧冷媒流量をそれぞれ独立に制御する弁機構を有
することを特徴としている。According to a third aspect of the present invention, in the vehicle-mounted refrigerant-cooled semiconductor device according to the second aspect, further, the cooling member and the evaporator of the inverter circuit section are connected to the low pressure of the refrigeration system. The cooling unit for air-conditioning air flow cooling is connected in parallel in a circuit unit, and has a valve mechanism for independently controlling the flow rate of low-pressure refrigerant supplied to the evaporator.
【００１３】本構成によれば、エバポレ−タとインバ−
タ回路部との冷却をそれぞれ必要な冷媒量で冷却するこ
とができ、その上、インバ−タ回路部を送電電力損失が
最小となる位置など、冷凍装置の車両空調用の低圧回路
部の位置に制限されることなく配置することができ、車
両空調用の低圧回路部の引き回しをインバ−タ回路部側
に寄せて配置する必要もなく、配管、配線が簡素化す
る。According to this structure, the evaporator and the inverter
The cooling circuit and the inverter circuit can be cooled with the required amount of refrigerant, and the position of the low-pressure circuit for vehicle air conditioning of the refrigeration system, such as the position where the transmission circuit power loss is minimized in the inverter circuit. The piping and wiring can be simplified since there is no need to arrange the low-voltage circuit portion for vehicle air conditioning close to the inverter circuit portion.
【００１４】請求項４記載の構成によれば請求項３記載
の車両搭載冷媒冷却型半導体装置において更に、前記弁
機構は、前記冷却部材の出口温度と前記エバポレ−タの
出口温度とによりそれぞれ個別に制御される一対の膨張
弁からなることを特徴としている。According to a fourth aspect of the present invention, in the vehicle-mounted refrigerant-cooled semiconductor device according to the third aspect, the valve mechanism further includes a separate outlet temperature of the cooling member and an outlet temperature of the evaporator. It is characterized by comprising a pair of expansion valves controlled in the following manner.
【００１５】本構成によれば、膨張弁とその感温制御機
構を増設するだけでよく、装置構成が簡素かつコンパク
トとなる。According to this configuration, it is only necessary to add the expansion valve and its temperature-sensitive control mechanism, and the configuration of the device becomes simple and compact.
【００１６】請求項５記載の構成によれば請求項２記載
の車両搭載冷媒冷却型半導体装置において更に、前記イ
ンバ−タ回路部の前記冷却部材は、前記冷凍装置の低圧
部にて前記エバポレ−タと直列に接続され、前記空調空
気流冷却抑止手段は、前記エバポレ−タと並列に接続さ
れたバイパス管と、前記空調空気流の冷却不要時に前記
バイパス管を開く弁とを有することを特徴としている。According to a fifth aspect of the present invention, in the vehicle-mounted refrigerant-cooled semiconductor device according to the second aspect, the cooling member of the inverter circuit section is further provided in the low-pressure section of the refrigeration system by the evaporator. And a bypass pipe connected in series with the evaporator and connected in parallel with the evaporator, and a valve for opening the bypass pipe when the cooling of the air-conditioned air stream is unnecessary. And
【００１７】本構成によれば、冷媒がエバポレ−タを迂
回するバイパス管を設け、このバイパス管にそれを開閉
する弁を設けるだけでよいので、簡素な構成で請求項２
記載の効果を達成することができる。バイパス管はイン
バ−タ回路部の冷却部材冷却専用モ−ドにおける冷媒流
量を流せる口径をもてばよい。According to this structure, it is only necessary to provide a bypass pipe through which the refrigerant bypasses the evaporator, and to provide a valve for opening and closing the bypass pipe in the bypass pipe.
The described effects can be achieved. The bypass pipe may have a diameter capable of flowing the flow rate of the refrigerant in the exclusive mode for cooling the cooling member of the inverter circuit.
【００１８】一般に、エバポレ−タの冷媒入口管部と、
冷媒出口管部とは近接配置されることが多いので、バイ
パス管は、これら冷媒入口管部と冷媒出口管部とを短絡
すればよく、バイパス管の延長距離及び引き回しに必要
なスペ−スは小さくてよい。弁は電磁弁をもちいること
が制御上、簡単である。Generally, a refrigerant inlet pipe of an evaporator;
Since the refrigerant outlet pipe is often disposed close to the refrigerant outlet pipe, the bypass pipe only needs to short-circuit the refrigerant inlet pipe and the refrigerant outlet pipe, and the extension distance of the bypass pipe and the space required for routing are as follows. It may be small. Using a solenoid valve for control is simple in terms of control.
【００１９】請求項６記載の構成によれば請求項５記載
の車両搭載冷媒冷却型半導体装置において更に、前記車
両空調用冷凍サイクル装置の膨張弁は、前記バイパス管
の下流側で検出された温度により制御されることを特徴
としている。According to a sixth aspect of the present invention, in the vehicle-mounted refrigerant-cooled semiconductor device according to the fifth aspect, the expansion valve of the vehicle air conditioning refrigeration cycle device further comprises a temperature detected downstream of the bypass pipe. It is characterized by being controlled by:
【００２０】本構成によれば、膨張弁は、冷却部材専用
冷却時又はエバポレ−タ冷却時のどちらでも膨張弁の冷
媒流量を良好に冷却することができる。According to this configuration, the expansion valve can satisfactorily cool the flow rate of the refrigerant of the expansion valve in either the cooling only for the cooling member or the evaporator cooling.
【００２１】請求項７記載の構成によれば請求項２記載
の車両搭載冷媒冷却型半導体装置において更に、前記イ
ンバ−タ回路部の前記冷却部材は、前記車両空調用冷凍
サイクル装置の膨張弁と前記エバポレ−タとの間に介設
され、前記空調空気流冷却抑止手段は、前記冷却部材の
出口温度及び前記エバポレ−タの出口温度を検出する一
対の感温筒と、前記両感温筒により制御される前記冷凍
装置の膨張弁と、冷却部材温度検出側の前記感温筒に装
備されて前記空調空気流の冷却時に通電されるヒ−タと
を有することを特徴としている。According to a seventh aspect of the present invention, in the vehicle-mounted refrigerant-cooled semiconductor device according to the second aspect, the cooling member of the inverter circuit section is further provided with an expansion valve of the refrigeration cycle device for vehicle air conditioning. A pair of temperature-sensitive cylinders interposed between the evaporator and the air-conditioning air flow cooling suppression means for detecting an outlet temperature of the cooling member and an outlet temperature of the evaporator; And a heater mounted on the temperature sensing cylinder on the cooling member temperature detection side and energized when cooling the conditioned air flow.
【００２２】なおここでいう感温筒は、たとえば被検出
冷媒の温度により作動するヒ−トパイプの温度検出部分
とされ、膨張弁はこのヒートパイプの内部ガス圧により
作動するダイヤフラムにより開度制御される弁とされる
ことができる。The temperature-sensitive cylinder mentioned here is, for example, a part for detecting the temperature of a heat pipe operated by the temperature of the refrigerant to be detected. The opening of the expansion valve is controlled by a diaphragm operated by the gas pressure inside the heat pipe. Valve.
【００２３】本構成によれば、インバ−タ回路部専用冷
却の場合は、エバポレ−タの上流に設けた冷却部材の出
口温度が上昇する（所定の冷媒乾き温度となる）場合に
はそれにより膨張弁を絞ることができる。したがって、
エバポレ−タには所定の乾き度（通常、乾いた冷媒すな
わち気化した冷媒）が流入することになり、エバポレ−
タ内で冷媒は気化潜熱を吸収することがない。According to this configuration, in the case of cooling exclusively for the inverter circuit section, when the outlet temperature of the cooling member provided upstream of the evaporator rises (when the predetermined refrigerant drying temperature is reached), it is accordingly controlled. The expansion valve can be throttled. Therefore,
A predetermined dryness (usually a dry refrigerant, that is, a vaporized refrigerant) flows into the evaporator, and
The refrigerant does not absorb latent heat of vaporization in the heater.
【００２４】また、エバポレ−タで空調空気流を冷却す
る場合には、冷却部材側の感温筒をヒ−タで加熱するの
で、冷却部材出口における冷媒の乾き度が湿っていて
も、この冷却部材側の感温筒は膨張弁開き方向の圧力変
化を膨張弁に送り、エバポレ−タは通常通り冷媒供給を
受けることができる。When the air-conditioning airflow is cooled by the evaporator, the temperature-sensitive cylinder on the cooling member side is heated by the heater. The temperature sensing cylinder on the cooling member side sends the pressure change in the opening direction of the expansion valve to the expansion valve, and the evaporator can receive the refrigerant supply as usual.
【００２５】更に、エバポレ−タ出口の冷媒乾き度が上
昇すると、エバポレ−タ側の感温筒がそれに応じた圧力
変化を膨張弁に伝達し、膨張弁を開いて冷媒流量を増大
し、逆に、エバポレ−タ出口の冷媒乾き度が低下する
と、エバポレ−タ側の感温筒がそれに応じた圧力変化を
膨張弁に伝達し、膨張弁を閉じて冷媒流量を減少する通
常の空調空気流冷却制御を行う。Further, when the dryness of the refrigerant at the evaporator outlet rises, the temperature-sensitive cylinder on the evaporator side transmits a corresponding pressure change to the expansion valve, and opens the expansion valve to increase the refrigerant flow rate. When the dryness of the refrigerant at the outlet of the evaporator decreases, the temperature-sensitive cylinder on the evaporator side transmits a corresponding pressure change to the expansion valve, and closes the expansion valve to reduce the refrigerant flow. Perform cooling control.
【００２６】本構成によれば、簡素な構成で請求項２記
載の効果を実現することができる。According to this configuration, the effect described in claim 2 can be realized with a simple configuration.
【００２７】請求項８記載の構成によれば請求項２記載
の車両搭載冷媒冷却型半導体装置において更に、前記イ
ンバ−タ回路部の前記冷却部材は、前記車両空調用冷凍
サイクル装置の低圧部にて前記エバポレ−タと直列に接
続され、前記空調空気流冷却抑止手段は、前記エバポレ
−タをバイパスして前記空調空気流を車室に供給するバ
イパス通風路と、前記空調空気流の冷却が不要な場合に
前記バイパス通風路を開くダンパとを有することを特徴
としている。According to an eighth aspect of the present invention, in the vehicle-mounted refrigerant-cooled semiconductor device according to the second aspect, the cooling member of the inverter circuit portion is further provided in a low-pressure portion of the vehicle air conditioning refrigeration cycle device. The air-conditioning air flow cooling suppression means is connected in series with the evaporator, and the cooling means for cooling the air-conditioning air flow includes a bypass ventilation path for supplying the air-conditioning air flow to the vehicle compartment by bypassing the evaporator. And a damper for opening the bypass ventilation passage when unnecessary.
【００２８】本構成によれば、インバ−タ回路部専用冷
却の場合に冷却部材を冷却した冷媒はエバポレ−タを冷
却してしまうが、ダンパを開くことにより空調空気流は
バイパス通風路を通じてエバポレ−タを短絡するので、
空調空気流が冷却されることはない。According to this configuration, in the case of cooling exclusively for the inverter circuit portion, the refrigerant that has cooled the cooling member cools the evaporator. However, by opening the damper, the air-conditioning air flow passes through the evaporator through the bypass ventilation passage. -Short-circuit the
The conditioned airflow is not cooled.
【００２９】また、空調空気流を冷却する場合には、ダ
ンパによりバイパス通風路を閉じれば問題なく空調空気
流の冷却を行うことができる。When cooling the conditioned air flow, the conditioned air flow can be cooled without any problem by closing the bypass ventilation passage by the damper.
【００３０】なお、ダンパとしては、バイパス通風路を
開閉してもよく、又はバイパス通風路とエバポレ−タへ
の通風路のどちらかへ空調空気流の流れを切り替える切
り替えダンパとしてもよい。As the damper, a bypass ventilation path may be opened and closed, or a switching damper for switching the flow of the conditioned air flow to either the bypass ventilation path or the ventilation path to the evaporator may be used.
【００３１】[0031]
【発明の実施の形態】本発明の車両空調冷媒冷却式イン
バ−タ回路装置の好適な実施態様を図面を参照して以下
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an inverter circuit device for cooling a vehicle air-conditioning refrigerant according to the present invention will be described below with reference to the drawings.
【００３２】[0032]
【実施例１】本発明の車両空調冷媒冷却式インバ−タ回
路装置の一実施例を図１を参照して以下に説明する。 （構成）１はコンプレッサ、２はコンデンサ、３ａ、３
ｂは膨張弁、４はエバポレ−タ、１０は冷媒配管であ
り、これらは車両空調用冷凍サイクル装置を構成してい
る。Embodiment 1 An embodiment of an inverter circuit device for cooling a vehicle air-conditioning refrigerant according to the present invention will be described below with reference to FIG. (Configuration) 1 is a compressor, 2 is a condenser, 3a, 3
Reference numeral b denotes an expansion valve, 4 denotes an evaporator, and 10 denotes a refrigerant pipe, which constitute a refrigeration cycle device for vehicle air conditioning.
【００３３】５は車両走行モ−タを駆動制御する三相イ
ンバータ回路が形成されたインバ−タ回路部、６はこの
インバ−タ回路部５に密着された冷却部材である。イン
バ−タ回路部５の三相インバータ回路は直流電源から給
電される電力を三相交流電力に変換して図示しない三相
交流モ−タからなる車両走行モ−タに給電する。Reference numeral 5 denotes an inverter circuit section in which a three-phase inverter circuit for controlling the driving of the vehicle running motor is formed. Reference numeral 6 denotes a cooling member closely attached to the inverter circuit section 5. The three-phase inverter circuit of the inverter circuit unit 5 converts the power supplied from the DC power supply into three-phase AC power and supplies the power to a vehicle running motor including a three-phase AC motor (not shown).
【００３４】７ａ、７ｂはいわゆるヒ−トパ−プである
感温筒であり、感温筒７ａ、７ｂは膨張弁３ａ、３ｂま
で延設される配管部７ｃ、７ｄを有する。Reference numerals 7a and 7b denote temperature-sensitive cylinders which are so-called heat-up tubes. The temperature-sensitive cylinders 7a and 7b have piping portions 7c and 7d extending to the expansion valves 3a and 3b.
【００３５】実際には、エバポレ−タ４の入口側冷媒配
管及び出口側冷媒配管は同一側に所定距離を隔てて隣接
かつ平行に配置されており、インバ−タ回路部５及びそ
の冷却部材６はエバポレ−タ４に比較して格段に小型に
あるため、エバポレ−タ４の上記入口側冷媒配管及び出
口側冷媒配管をそれらと直角に接続するバイパス冷媒配
管１１内に介設されている。 （動作）コンプレッサ１はエバポレ−タ４又はインバ−
タ回路部５の運転時に運転される。Actually, the inlet side refrigerant pipe and the outlet side refrigerant pipe of the evaporator 4 are arranged adjacently and in parallel at a predetermined distance on the same side, and the inverter circuit section 5 and its cooling member 6 are provided. Since the evaporator 4 is much smaller than the evaporator 4, it is interposed in a bypass refrigerant pipe 11 that connects the inlet refrigerant pipe and the outlet refrigerant pipe of the evaporator 4 at right angles to them. (Operation) The compressor 1 is an evaporator 4 or an inverter.
It is operated during the operation of the data circuit unit 5.
【００３６】エバポレ−タ４への冷媒流量はエバポレ−
タ４の出口側に配設された感温筒７ａによる膨張弁３ａ
の開度により制御され、冷却部材６への冷媒流量は冷却
部材６４の出口側に配設された感温筒７ｂによる膨張弁
３ｂの開度により制御される。The flow rate of the refrigerant to the evaporator 4 is determined by the evaporator.
Expansion valve 3a by a temperature-sensitive cylinder 7a disposed on the outlet side of the heater 4
And the flow rate of the refrigerant to the cooling member 6 is controlled by the opening of the expansion valve 3b by the temperature-sensitive cylinder 7b disposed on the outlet side of the cooling member 64.
【００３７】図２に、冷却部材６への冷媒流量制御を更
に詳しく説明する。FIG. 2 illustrates the control of the flow rate of the refrigerant to the cooling member 6 in more detail.
【００３８】冷却部材６の発熱量が増大すれば、冷却部
材６から出たバイパス冷媒配管１１に接する感温筒７ｂ
内の冷媒が蒸発し、膨張弁３ｂのダイアフラム弁がスプ
リング３０４に抗して弁体３０３を弁孔３０５を開く方
向に押し下げ、膨張弁３ｂを通過する冷媒流量が増大す
る。冷却部材６の発熱量が減少すれば、逆の動作により
膨張弁３ｂを通過する冷媒流量が減少する。感温筒７ａ
による膨張弁３ａの制御も同じである。If the amount of heat generated by the cooling member 6 increases, the temperature-sensitive cylinder 7b in contact with the bypass refrigerant pipe 11 that has exited from the cooling member 6
The refrigerant in the evaporator evaporates, the diaphragm valve of the expansion valve 3b pushes the valve body 303 in a direction to open the valve hole 305 against the spring 304, and the flow rate of the refrigerant passing through the expansion valve 3b increases. If the amount of heat generated by the cooling member 6 decreases, the flow rate of the refrigerant passing through the expansion valve 3b decreases due to the reverse operation. Temperature sensing tube 7a
The same applies to the control of the expansion valve 3a.
【００３９】[0039]
【実施例２】本発明の車両空調冷媒冷却式インバ−タ回
路装置の他の実施例を図３を参照して以下に説明する。Embodiment 2 Another embodiment of the inverter circuit device of the present invention will be described below with reference to FIG.
【００４０】この実施例の装置は、図１に示す実施例１
の装置において、バイパス冷媒配管１１、膨張弁３ｂ、
感温筒７ｂを省略し、その代わりに、膨張弁３ａとエバ
ポレ−タ４との間の冷媒配管１０（低圧回路部）にイン
バ−タ回路部５の冷却部材６を介設し、更にエバポレ−
タ４の入口側冷媒配管及び出口側冷媒配管をバイパス冷
媒配管１２で短絡し、このバイパス冷媒配管１２に電磁
弁１３を設けたものである。 （動作）コンプレッサ１はエバポレ−タ４又はインバ−
タ回路部５の運転時に運転される。エバポレ−タ４への
冷媒流量はエバポレ−タ４の出口側に配設された感温筒
７ａによる膨張弁３ａの開度により制御される。インバ
−タ回路部５のみを冷却し、エバポレ−タ４での空調空
気流の冷却を行わない場合には、バイパス冷媒配管１１
の電磁弁１３を開く。これにより、冷却部材６から出た
冷媒はバイパス冷媒配管１２を通じて流れ、エバポレ−
タ４はほとんど空調空気流を冷却することはない。エバ
ポレ−タ４により空調空気流を冷却する場合には電磁弁
１３を閉じればよい。The apparatus of this embodiment is the same as that of the first embodiment shown in FIG.
The bypass refrigerant pipe 11, the expansion valve 3b,
The temperature sensing cylinder 7b is omitted, and instead, a cooling member 6 of the inverter circuit section 5 is provided in the refrigerant pipe 10 (low pressure circuit section) between the expansion valve 3a and the evaporator 4, and the evaporator is further provided. −
The inlet-side refrigerant pipe and the outlet-side refrigerant pipe of the heater 4 are short-circuited by a bypass refrigerant pipe 12, and an electromagnetic valve 13 is provided in the bypass refrigerant pipe 12. (Operation) The compressor 1 is an evaporator 4 or an inverter.
It is operated during the operation of the data circuit unit 5. The flow rate of the refrigerant to the evaporator 4 is controlled by the opening degree of the expansion valve 3a by the temperature-sensitive cylinder 7a disposed on the outlet side of the evaporator 4. When cooling only the inverter circuit section 5 and not cooling the conditioned air flow in the evaporator 4, the bypass refrigerant pipe 11
Is opened. As a result, the refrigerant flowing out of the cooling member 6 flows through the bypass refrigerant pipe 12, and is evaporated.
The fan 4 hardly cools the conditioned air flow. When the air conditioning airflow is cooled by the evaporator 4, the solenoid valve 13 may be closed.
【００４１】膨張弁３ａを制御する感温筒７ａは、バイ
パス冷媒配管１２とエバポレ−タ４との合流点又はその
下流に配置されるので、冷却部材６のみを冷却し、エバ
ポレ−タ４を冷却しない場合も、エバポレ−タ４を冷却
する場合も同様に膨張弁３ａを制御することができる。The temperature sensing cylinder 7a for controlling the expansion valve 3a is arranged at the junction of the bypass refrigerant pipe 12 and the evaporator 4 or downstream thereof, so that only the cooling member 6 is cooled and the evaporator 4 is cooled. The expansion valve 3a can be controlled similarly when cooling is not performed and when the evaporator 4 is cooled.
【００４２】[0042]
【実施例３】本発明の車両空調冷媒冷却式インバ−タ回
路装置の他の実施例を図４を参照して以下に説明する。Embodiment 3 Another embodiment of the inverter circuit device of the present invention will be described below with reference to FIG.
【００４３】この実施例の装置は、図１に示す実施例１
の装置において、バイパス冷媒配管１１を省略し、その
代わりに、膨張弁３ａとエバポレ−タ４との間の冷媒配
管１０（低圧回路部）にインバ−タ回路部５の冷却部材
６を介設し、更に冷却部材６とエバポレ−タ４との間の
冷媒配管１０にヒ−タ８を通じて感温筒７ｂを設けたも
のである。The apparatus of this embodiment is the same as that of the first embodiment shown in FIG.
In this device, the bypass refrigerant pipe 11 is omitted, and the cooling member 6 of the inverter circuit section 5 is interposed in the refrigerant pipe 10 (low pressure circuit section) between the expansion valve 3a and the evaporator 4 instead. Further, a temperature sensing tube 7b is provided through a heater 8 in a refrigerant pipe 10 between the cooling member 6 and the evaporator 4.
【００４４】感温筒７ｂから延設される配管部７ｄは、
感温筒７ａから膨張弁まで延設される配管部７ｃに連結
されている。The pipe section 7d extending from the temperature-sensitive cylinder 7b is
It is connected to a pipe 7c extending from the temperature sensing cylinder 7a to the expansion valve.
【００４５】（動作）コンプレッサ１はエバポレ−タ４
又はインバ−タ回路部５の運転時に運転される。(Operation) The compressor 1 is an evaporator 4
Alternatively, it is operated when the inverter circuit unit 5 is operated.
【００４６】エバポレ−タ４を運転モ−ドでは、ヒ−タ
８に通電して感温筒７ｂを冷媒乾き検出状態とする。こ
れにより、感温筒７ｂが膨張弁３ａを閉鎖することがな
い。この状態で、エバポレ−タ４の冷却が不足すると感
温筒７ａ内の冷媒が蒸発し、これにより膨張弁３ａが開
いて冷媒流量を増大させる。逆に、エバポレ−タ４の冷
却が過剰となれば感温筒７ａ内で冷媒が液化し、感温筒
３ａが閉じて冷媒流量を減少させる。When the evaporator 4 is in the operation mode, the heater 8 is energized to set the temperature sensing cylinder 7b in a refrigerant dry detection state. Thereby, the temperature sensing cylinder 7b does not close the expansion valve 3a. In this state, if the cooling of the evaporator 4 is insufficient, the refrigerant in the temperature sensing tube 7a evaporates, whereby the expansion valve 3a is opened to increase the refrigerant flow rate. Conversely, if the cooling of the evaporator 4 becomes excessive, the refrigerant liquefies in the temperature-sensitive tube 7a, the temperature-sensitive tube 3a closes, and the flow rate of the refrigerant decreases.
【００４７】[0047]
【実施例４】本発明の車両空調冷媒冷却式インバ−タ回
路装置の他の実施例を図５を参照して以下に説明する。Embodiment 4 Another embodiment of the inverter circuit device of the present invention will be described below with reference to FIG.
【００４８】この実施例の装置は、図３に示す実施例２
の装置において、バイパス冷媒配管１２及び電磁弁１３
を省略し、その代わりに、エバポレ−タ４を流れる空調
空気流の主通風路９をバイパスするバイパス通風路９０
を設け、このバイパス通風路９０を流れる空調空気流を
切り替えダンパ９１で開閉制御するものである。The apparatus of this embodiment is the same as that of the second embodiment shown in FIG.
The bypass refrigerant pipe 12 and the solenoid valve 13
Is omitted, and instead, a bypass ventilation passage 90 that bypasses the main ventilation passage 9 of the conditioned air flow flowing through the evaporator 4 is provided.
And the opening and closing of the air-conditioning air flowing through the bypass ventilation passage 90 is controlled by the switching damper 91.
【００４９】空調空気流の流れを以下に説明する。な
お、図５における冷凍サイクル装置自体の構成は図３と
同じであるので説明は省略する。The flow of the conditioned air flow will be described below. The configuration of the refrigeration cycle apparatus in FIG. 5 is the same as that in FIG.
【００５０】９２は内外気切り替えダンパ、９３はブロ
ワ、９４はブロワモ−タ、９５はヒ−タコア、９６はヒ
−タコアダンパ、９７は空調空気流の吹き出し口、９８
はダクトである。Reference numeral 92 denotes an inside / outside air switching damper, 93 denotes a blower, 94 denotes a blower motor, 95 denotes a heater core, 96 denotes a heater core damper, 97 denotes an air-conditioning air flow outlet, 98
Is a duct.
【００５１】切り替えダンパ９１は、ブロワ９３が形成
した空調空気流を主通風路９とバイパス通風路９０のど
ちらかへ流す。エバポレ−タ４は主通風路９内に配置さ
れており、その結果切り替えダンパ９１により主通風路
９を閉じ、バイパス通風路９０を開ける動作は、実施例
２において電磁弁１３を開いてバイパス冷媒配管１２を
開く動作に機能的に同じとなる。したがって、インバ−
タ回路部５の冷却部材６のみを冷却したい場合には切り
替えダンパ９１により主通風路９を閉じ、バイパス通風
路９０を開ければよく、エバポレ−タ４により空調空気
流を冷却したい場合には切り替えダンパ９１により主通
風路９を開き、バイパス通風路９０を閉じればよい。The switching damper 91 allows the conditioned air flow formed by the blower 93 to flow to either the main ventilation path 9 or the bypass ventilation path 90. The evaporator 4 is disposed in the main air passage 9. As a result, the operation of closing the main air passage 9 and opening the bypass air passage 90 by the switching damper 91 is similar to the operation of the second embodiment in which the electromagnetic valve 13 is opened and the bypass refrigerant is opened. The operation is the same as the operation of opening the pipe 12. Therefore, the invar
When it is desired to cool only the cooling member 6 of the cooling circuit section 5, the main ventilation path 9 may be closed by the switching damper 91 and the bypass ventilation path 90 may be opened. When the air conditioning airflow is to be cooled by the evaporator 4, the switching is performed. The main ventilation path 9 may be opened by the damper 91 and the bypass ventilation path 90 may be closed.
【図１】実施例１の車両空調冷媒冷却式インバ−タ回路
装置のブロック図である。FIG. 1 is a block diagram of a vehicle air-conditioning refrigerant-cooled inverter circuit device according to a first embodiment.
【図２】図１における膨張弁制御動作を示す部分ブロッ
ク図である。FIG. 2 is a partial block diagram showing an expansion valve control operation in FIG.
【図３】実施例２の車両空調冷媒冷却式インバ−タ回路
装置のブロック図である。FIG. 3 is a block diagram of a vehicle air-conditioning refrigerant-cooled inverter circuit device according to a second embodiment.
【図４】実施例３の車両空調冷媒冷却式インバ−タ回路
装置のブロック図である。FIG. 4 is a block diagram of a vehicle air-conditioning refrigerant-cooled inverter circuit device according to a third embodiment.
【図５】実施例４の車両空調冷媒冷却式インバ−タ回路
装置のブロック図である。FIG. 5 is a block diagram of a vehicle air-conditioning refrigerant-cooled inverter circuit device according to a fourth embodiment.
１：コンプレッサ ２：コンデンサ ３ａ、３ｂ：膨張弁 ４：エバポレ−タ ５：インバ−タ回路部 ６：インバ−タ回路部の冷却部材 ７ａ、７ｂ：感温筒 1: Compressor 2: Condenser 3a, 3b: Expansion valve 4: Evaporator 5: Inverter circuit 6: Cooling member of inverter circuit 7a, 7b: Thermosensitive cylinder
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5H007 AA06 BB06 CA01 CA02 HA06 5H115 PC06 PG04 PI16 PI18 PI29 PU08 PU21 PV07 PV09 PV22 PV23 PV24 QA01 TO05 UI29 UI34 UI40 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H007 AA06 BB06 CA01 CA02 HA06 5H115 PC06 PG04 PI16 PI18 PI29 PU08 PU21 PV07 PV09 PV22 PV23 PV24 QA01 TO05 UI29 UI34 UI40
Claims (8)
回路部の冷却部材に車両空調用冷凍サイクル装置の冷媒
を貫流させ、空調空気流の冷却が不要な場合に走行する
場合に車両空調用冷凍サイクル装置のエバポレ−タによ
る前記空調空気流の冷却を阻止することを特徴とする車
両走行モ−タ駆動用インバータ回路装置の冷却方法。A cooling system for an inverter circuit for driving and controlling a vehicle running motor, wherein a refrigerant of a refrigeration cycle device for vehicle air conditioning flows through the cooling member so that the vehicle is driven when cooling of the air-conditioned air flow is unnecessary. A method for cooling an inverter circuit device for driving a vehicle running motor, wherein cooling of the air-conditioning airflow by an evaporator of a refrigeration cycle device for air-conditioning is prevented.
する冷却部材を有し、車両走行モ−タを駆動制御するイ
ンバ−タ回路部と、 前記インバ−タ回路部を駆動するにもかかわらず前記車
両空調用冷凍サイクル装置のエバポレ−タによる空調空
気流の冷却が要求されない場合に、前記車両空調用冷凍
サイクル装置を運転しかつ前記エバポレ−タによる前記
空調空気流の冷却を抑止する空調空気流冷却抑止手段
と、 を備えることを特徴とする車両走行モ−タ駆動用インバ
ータ回路装置。2. An inverter circuit section having a cooling member through which a refrigerant of a refrigeration cycle apparatus for vehicle air conditioning flows, and controlling the driving of a vehicle running motor; and driving the inverter circuit section. If the cooling of the conditioned air flow by the evaporator of the vehicle air conditioning refrigeration cycle device is not required, the air conditioning for operating the vehicle air conditioning refrigeration cycle device and inhibiting the cooling of the air conditioning air flow by the evaporator is performed. An inverter circuit device for driving a vehicle running motor, comprising: an airflow cooling suppressing means.
装置において、 前記インバ−タ回路部の前記冷却部材と前記エバポレ−
タとは、前記冷凍装置の低圧回路部にて並列接続され、 前記空調空気流冷却抑止手段は、前記エバポレ−タとに
供給する低圧冷媒流量をそれぞれ独立に制御する弁機構
を有することを特徴とする車両空調冷媒冷却式インバ−
タ回路装置。3. The semiconductor device mounted on a vehicle according to claim 2, wherein said cooling member of said inverter circuit portion and said evaporator.
And the air-conditioning air flow cooling suppression means has a valve mechanism for independently controlling the flow rate of the low-pressure refrigerant supplied to the evaporator. Vehicle air conditioning refrigerant cooling type inverter
Circuit device.
装置において、 前記弁機構は、前記冷却部材の出口温度と前記エバポレ
−タの出口温度とによりそれぞれ個別に制御される一対
の膨張弁からなることを特徴とする車両空調冷媒冷却式
インバ−タ回路装置。4. A vehicle-mounted refrigerant-cooled semiconductor device according to claim 3, wherein said valve mechanism has a pair of expansion valves individually controlled by an outlet temperature of said cooling member and an outlet temperature of said evaporator. An inverter circuit device for cooling a vehicle air-conditioning refrigerant, comprising:
装置において、 前記インバ−タ回路部の前記冷却部材は、前記冷凍装置
の低圧部にて前記エバポレ−タと直列に接続され、 前記空調空気流冷却抑止手段は、前記エバポレ−タと並
列に接続されたバイパス管と、前記空調空気流の冷却不
要時に前記バイパス管を開く弁とを有することを特徴と
する車両空調冷媒冷却式インバ−タ回路装置。5. The semiconductor device according to claim 2, wherein said cooling member of said inverter circuit is connected in series with said evaporator at a low pressure portion of said refrigeration system. The air-conditioning air flow cooling suppressing means has a bypass pipe connected in parallel with the evaporator, and a valve for opening the bypass pipe when cooling of the air-conditioning air flow is unnecessary. -Circuit device.
装置において、 前記車両空調用冷凍サイクル装置の膨張弁は、前記バイ
パス管の下流側で検出された温度により制御されること
を特徴とする車両走行モ−タ駆動用インバータ回路装
置。6. The vehicle-mounted refrigerant-cooled semiconductor device according to claim 5, wherein an expansion valve of the refrigeration cycle device for vehicle air conditioning is controlled by a temperature detected downstream of the bypass pipe. Circuit device for driving a vehicle running motor.
装置において、 前記インバ−タ回路部の前記冷却部材は、前記車両空調
用冷凍サイクル装置の膨張弁と前記エバポレ−タとの間
に介設され、 前記空調空気流冷却抑止手段は、前記冷却部材の出口温
度及び前記エバポレ−タの出口温度を検出する一対の感
温筒と、 前記両感温筒により制御される前記冷凍装置の膨張弁
と、 冷却部材温度検出側の前記感温筒に装備されて前記空調
空気流の冷却時に通電されるヒ−タと、 を有することを特徴とする車両空調冷媒冷却式インバ−
タ回路装置。7. The vehicle-mounted refrigerant-cooled semiconductor device according to claim 2, wherein said cooling member of said inverter circuit portion is provided between an expansion valve of said vehicle air conditioning refrigeration cycle device and said evaporator. The air-conditioning air flow cooling suppression means is provided with: a pair of temperature-sensitive cylinders for detecting an outlet temperature of the cooling member and an outlet temperature of the evaporator; An in-vehicle air-conditioning refrigerant-cooled inverter, comprising: an expansion valve; and a heater mounted on the temperature-sensitive cylinder on the cooling member temperature detection side and energized when cooling the air-conditioning air flow.
Circuit device.
装置において、 前記インバ−タ回路部の前記冷却部材は、前記車両空調
用冷凍サイクル装置の低圧部にて前記エバポレ−タと直
列に接続され、 前記空調空気流冷却抑止手段は、前記エバポレ−タをバ
イパスして前記空調空気流を車室に供給するバイパス通
風路と、 前記空調空気流の冷却が不要な場合に前記バイパス通風
路を開くダンパとを有することを特徴とする車両空調冷
媒冷却式インバ−タ回路装置。8. The vehicle-mounted refrigerant-cooled semiconductor device according to claim 2, wherein said cooling member of said inverter circuit portion is connected in series with said evaporator at a low pressure portion of said vehicle air conditioning refrigeration cycle device. The air-conditioning air flow cooling suppressing means is connected to a bypass air passage for bypassing the evaporator and supplying the air-conditioned air flow to the passenger compartment; and a bypass air passage when the cooling of the air-conditioned air flow is unnecessary. And a damper for opening the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000124504A JP4075285B2 (en) | 2000-04-25 | 2000-04-25 | Inverter circuit device for driving vehicle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000124504A JP4075285B2 (en) | 2000-04-25 | 2000-04-25 | Inverter circuit device for driving vehicle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001309506A true JP2001309506A (en) | 2001-11-02 |
| JP4075285B2 JP4075285B2 (en) | 2008-04-16 |
Family
ID=18634627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000124504A Expired - Fee Related JP4075285B2 (en) | 2000-04-25 | 2000-04-25 | Inverter circuit device for driving vehicle motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4075285B2 (en) |
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| JP2008253098A (en) * | 2007-03-30 | 2008-10-16 | Toyota Motor Corp | Cooling system and vehicle with the same |
| WO2012056555A1 (en) * | 2010-10-29 | 2012-05-03 | トヨタ自動車株式会社 | Cooling apparatus and vehicle |
| WO2012105047A1 (en) | 2011-02-04 | 2012-08-09 | トヨタ自動車株式会社 | Cooling device |
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| WO2013057832A1 (en) | 2011-10-21 | 2013-04-25 | トヨタ自動車株式会社 | Cooling device and control method for cooling device |
| WO2013093991A1 (en) | 2011-12-19 | 2013-06-27 | トヨタ自動車株式会社 | Cooling device |
| JPWO2013093991A1 (en) * | 2011-12-19 | 2015-04-27 | トヨタ自動車株式会社 | Cooling system |
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