JP2961196B2 - Vehicle air conditioner - Google Patents
Vehicle air conditionerInfo
- Publication number
- JP2961196B2 JP2961196B2 JP5156914A JP15691493A JP2961196B2 JP 2961196 B2 JP2961196 B2 JP 2961196B2 JP 5156914 A JP5156914 A JP 5156914A JP 15691493 A JP15691493 A JP 15691493A JP 2961196 B2 JP2961196 B2 JP 2961196B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- vehicle
- evaporator
- condenser
- air conditioner
- 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.)
- Expired - Fee Related
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
Description
【０００１】[0001]
【産業上の利用分野】本発明は車両用空調装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle air conditioner.
【０００２】[0002]
【従来の技術】従来の車両用空調装置としては、図２に
示す冷凍サイクル１００により冷房運転を行い、エンジ
ン冷却水を車内の熱交換器１０１に直接導き、空気と熱
交換させることにより暖房運転を行うタイプの車両用空
調装置がよく知られている。また、図３に示す、冷房
時、暖房時とも共通の冷媒圧縮機２０１、車外熱交換器
２０２、車内熱交換器２０３を用いて、それらにより構
成される冷媒回路中を流れる冷媒の循環方向を変えるこ
とにより冷暖房を行うヒートポンプ式冷凍サイクル２０
０による空調装置もよく知られている。2. Description of the Related Art As a conventional vehicle air conditioner, a cooling operation is performed by a refrigeration cycle 100 shown in FIG. 2, an engine cooling water is directly introduced into a heat exchanger 101 in the vehicle, and a heating operation is performed by exchanging heat with air. A vehicle air conditioner of the type performing the above is well known. In addition, using the common refrigerant compressor 201, the external heat exchanger 202, and the internal heat exchanger 203 for both cooling and heating shown in FIG. Heat pump refrigeration cycle 20 for cooling and heating by changing
Air conditioners with zero are also well known.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の車両空調装
置には解決すべき次の課題があった。The conventional vehicle air conditioner has the following problems to be solved.
【０００４】即ち、従来の車両空調装置では、エンジン
冷却水（温水）を直接車内の熱交換器（ヒータコア）に
導く為、その空調装置を車内の天井に設置した場合、万
が一温水が漏れた時に、乗員にかかるという恐れがあ
り、その様なレイアウトは実現できないという問題があ
った。これを解決する手段として温水を用いない図３に
示すヒートポンプ冷凍サイクルによるシステムが考えら
れるが、このシステムは、車外の気温が低いと暖房能力
が低下したり、除湿暖房ができない等の問題点があっ
た。That is, in the conventional vehicle air conditioner, the engine cooling water (hot water) is directly led to the heat exchanger (heater core) in the vehicle. Therefore, if the air conditioner is installed on the ceiling in the vehicle, if the hot water leaks, However, there is a fear that such a layout may not be realized. As a means for solving this, a system using a heat pump refrigeration cycle shown in FIG. 3 that does not use hot water can be considered. However, this system has problems such as a decrease in the heating capacity when the temperature outside the vehicle is low, and the inability to perform dehumidifying heating. there were.
【０００５】本発明は、上記問題を解決するため、直接
車内に温水を導くことなく十分な暖房能力を得られ、か
つ除湿暖房を可能にする車両用空調装置の提供を目的と
する。An object of the present invention is to provide a vehicle air conditioner which can obtain a sufficient heating capacity without directly introducing hot water into a vehicle and enables dehumidifying heating in order to solve the above-mentioned problems.
【０００６】[0006]
【課題を解決するための手段】本発明は上記課題の解決
手段として次の（１）〜（２）に記載の手段を備えた車
両用空調装置を提供しようとするものである。The object of the present invention is to provide a vehicle air conditioner provided with the following means (1) and (2) as means for solving the above problems.
【０００７】（１）走行用もしくは空調用水冷式エンジ
ンにより駆動される冷媒を圧縮する冷媒圧縮機、車室外
に配設されて前記冷媒を凝縮する車外冷媒凝縮器、車室
外に配設されるとともに前記冷媒圧縮機を駆動する為の
エンジンの冷却水と冷媒とを熱交換することにより前記
冷媒を蒸発させる車外冷媒蒸発器、車室内に配設されて
前記冷媒を凝縮する車内冷媒凝縮器、車室内に配設され
て前記冷媒を蒸発せしめる車内冷媒蒸発器、および、液
冷媒を抽出する冷媒受液器を有し、前記圧縮機で圧縮さ
れた冷媒を前記車外冷媒凝縮器、前記冷媒受液器、前記
車内冷媒蒸発器の順で循環せしめる冷房冷凍サイクル、
前記圧縮機で圧縮された冷媒を前記車内冷媒凝縮器、前
記冷媒受液器、前記車外冷媒蒸発器の順で循環せしめる
暖房ヒートポンプサイクル、および、前記圧縮機で圧縮
された冷媒を前記車内冷媒凝縮器、前記冷媒受液器、前
記車内冷媒蒸発器の順で循環せしめる除湿暖房サイク
ル、に切換設定可能な切換装置を備えたことを特徴とす
る車両用空調装置。(1) A refrigerant compressor for compressing a refrigerant driven by a water-cooled engine for running or air conditioning, an external refrigerant condenser disposed outside the vehicle compartment for condensing the refrigerant, and disposed outside the vehicle interior. An external refrigerant evaporator that evaporates the refrigerant by exchanging heat with the cooling water of the engine and the refrigerant for driving the refrigerant compressor, an in-vehicle refrigerant condenser that is disposed in the vehicle interior and condenses the refrigerant, A refrigerant evaporator disposed in the vehicle interior for evaporating the refrigerant; and a refrigerant receiver for extracting the liquid refrigerant, wherein the refrigerant compressed by the compressor is supplied to the external refrigerant condenser and the refrigerant receiver. A liquid cooling device, a cooling refrigeration cycle that circulates in the order of the in-vehicle refrigerant evaporator,
A heating heat pump cycle for circulating the refrigerant compressed by the compressor in the order of the in-vehicle refrigerant condenser, the refrigerant receiver, and the out-of-vehicle refrigerant evaporator; and condensing the refrigerant compressed by the compressor into the in-vehicle refrigerant. An air conditioner for a vehicle, comprising: a switching device that can be set to switch to a dehumidifying and heating cycle that circulates in the order of a vessel, the refrigerant receiver, and the in-vehicle refrigerant evaporator.
【０００８】（２）上記車内冷媒蒸発器と車内冷媒凝縮
器と上記車内冷媒蒸発器と車内冷媒凝縮器との間に設け
られたエアミックスダンパと電動ブロワとを備えた車内
空調装置を車内天井に設置したことを特徴とする請求項
１記載の車両用空調装置。(2) An in-vehicle air conditioner including the above-described in-vehicle refrigerant evaporator, the in-vehicle refrigerant condenser, an air mix damper provided between the in-vehicle refrigerant evaporator and the in-vehicle refrigerant condenser, and an electric blower is mounted on a vehicular ceiling. The vehicle air conditioner according to claim 1, wherein the vehicle air conditioner is installed in a vehicle.
【０００９】[0009]
【作用】本発明は上記のように構成されるので次の作用
を有する。The present invention is configured as described above and has the following effects.
【００１０】走行用もしくは空調用エンジンを始動させ
ると、冷媒圧縮機が駆動され、冷媒が回路中を循環す
る。冷房時は、冷媒圧縮機、車外冷媒凝縮器、冷媒受液
器、車内冷媒蒸発器の順で冷媒が循環し、車内冷媒蒸発
器で吸熱した熱を車外冷媒凝縮器より放熱することで車
内を冷房する。[0010] When the running or air conditioning engine is started, the refrigerant compressor is driven, and the refrigerant circulates through the circuit. During cooling, the refrigerant circulates in the order of the refrigerant compressor, the refrigerant condenser outside the vehicle, the refrigerant receiver, and the refrigerant evaporator inside the vehicle, and radiates the heat absorbed by the refrigerant evaporator inside the vehicle from the refrigerant condenser outside the vehicle. Cool.
【００１１】暖房時は、冷媒圧縮機、車内冷媒凝縮器、
冷媒受液器、車外冷媒蒸発器の順で冷媒が循環し、車外
冷媒蒸発器でエンジン冷却水の熱を吸熱し、車内冷媒凝
縮器より放熱することで車内を暖房する。また、この
時、流量調整弁が車内冷媒蒸発器に流入するエンジン冷
却水量を調整し、車外冷媒蒸発器での吸熱量を調整する
ことにより、車内冷媒凝縮器からの放熱量、すなわち暖
房能力を調整する。At the time of heating, a refrigerant compressor, an in-vehicle refrigerant condenser,
Refrigerant circulates in the order of a refrigerant receiver and a refrigerant evaporator outside the vehicle, absorbs heat of the engine cooling water by the refrigerant evaporator outside the vehicle, and radiates heat from the refrigerant condenser inside the vehicle to heat the inside of the vehicle. At this time, the flow control valve adjusts the amount of engine cooling water flowing into the in-vehicle refrigerant evaporator, and adjusts the amount of heat absorbed in the out-of-vehicle refrigerant evaporator, thereby reducing the amount of heat released from the in-vehicle refrigerant condenser, that is, the heating capacity. adjust.
【００１２】除湿暖房時は、冷媒圧縮機、車内冷媒凝縮
器、冷媒受液器、車内冷媒蒸発器の順で冷媒が循環し、
車内冷媒蒸発器で一度吸熱・除湿された空気が車内冷媒
凝縮器より放熱される熱が再熱され、車内を除湿暖房す
る。暖房及び除湿暖房時は車内冷媒凝縮器からの放熱量
が過大となった場合にはエアミックスダンパで車内冷媒
凝縮器を通過する空気量を調整し、車内への吹き出し風
温を適度な温度にする。During dehumidification and heating, the refrigerant circulates in the order of the refrigerant compressor, the in-vehicle refrigerant condenser, the refrigerant receiver, and the in-vehicle refrigerant evaporator.
The air once absorbed and dehumidified by the in-vehicle refrigerant evaporator is reheated by the heat radiated from the in-vehicle refrigerant condenser, thereby dehumidifying and heating the inside of the vehicle. During heating and dehumidifying heating, if the amount of heat released from the in-vehicle refrigerant condenser becomes excessive, the amount of air passing through the in-vehicle refrigerant condenser is adjusted by the air mix damper, and the temperature of air blown into the vehicle is adjusted to an appropriate temperature. I do.
【００１３】以上の作用で、直接車内に温水を導くこと
なく十分な暖房能力を得られ、かつ除湿暖房が可能とな
る。また、上記手段によれば、切換装置による冷媒回路
の切り換えにより、車内冷媒蒸発器と車内冷媒凝縮器の
双方に共通の冷媒を導けるように構成されているため、
車室内に、上記蒸発器及び凝縮器の夫々について独立し
た２つの冷媒回路を設けることを必要とせず、冷媒配管
が簡略化され、車内の省スペースが実現できる。[0013] By the above operation, a sufficient heating capacity can be obtained without directly introducing hot water into the vehicle, and dehumidification heating can be performed. Further, according to the above means, since the refrigerant circuit is switched by the switching device, a common refrigerant can be guided to both the in-vehicle refrigerant evaporator and the in-vehicle refrigerant condenser,
It is not necessary to provide two independent refrigerant circuits for each of the evaporator and the condenser in the vehicle interior, the refrigerant piping is simplified, and space saving in the vehicle can be realized.
【００１４】[0014]
【実施例】本発明の一実施例を図１に基づいて説明す
る。なお、従来例等に用いられる機器自身については必
要ある場合を除き、説明を省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIG. The description of the devices used in the conventional examples and the like is omitted unless necessary.
【００１５】図１は本実施例の模式的構成図で、図に示
すように、車両用空調装置Ａは冷媒圧縮機１、車外冷媒
凝縮器２、冷媒受液器３、膨張弁４，７、車内冷媒蒸発
器５、車内冷媒凝縮器６、車外冷媒蒸発器８、逆止弁
９，１０、電磁弁１１，１２，１３，１４により構成さ
れる冷媒回路と前記車外冷媒蒸発器８、流量調整弁１
５、ラジエータ１６、走行用エンジン１７により構成さ
れる温水回路Ｂとから成る。また、車内空調装置Ｃは、
電動ブロワ１８、前記膨張弁４、前記車内冷媒蒸発器
５、エアミックスダンパ１９、前記車内冷媒凝縮器６に
より構成される。上記車内空調装置Ｃは、車内スペース
面から車内の天井に設定されるのが好ましい形態であ
る。FIG. 1 is a schematic structural view of the present embodiment. As shown in FIG. 1, a vehicle air conditioner A includes a refrigerant compressor 1, an external refrigerant condenser 2, a refrigerant receiver 3, expansion valves 4 and 7, and A refrigerant circuit composed of an in-vehicle refrigerant evaporator 5, an in-vehicle refrigerant condenser 6, an out-of-vehicle refrigerant evaporator 8, check valves 9, 10, and solenoid valves 11, 12, 13, and 14; Regulating valve 1
5, a radiator 16, and a hot water circuit B composed of a traveling engine 17. Also, the in-vehicle air conditioner C is
It comprises an electric blower 18, the expansion valve 4, the in-vehicle refrigerant evaporator 5, an air mix damper 19, and the in-vehicle refrigerant condenser 6. It is a preferred embodiment that the in-vehicle air conditioner C is set from the in-vehicle space surface to the ceiling in the vehicle.
【００１６】冷媒圧縮機１（例えば冷媒吐出量約１１０
cm3 ／回転）は走行用エンジン１７により駆動され、Ｃ
ＦＣ−１２やＨＦＣ−１３４ａ等の冷媒を圧縮する。The refrigerant compressor 1 (for example, a refrigerant discharge amount of about 110
cm 3 / revolution) is driven by the driving engine 17 and C 3
It compresses refrigerant such as FC-12 and HFC-134a.
【００１７】車外冷媒凝縮器２は冷房運転時に使われ、
冷媒圧縮機１より吐出されたガス冷媒を凝縮液化させ
る。The external refrigerant condenser 2 is used during cooling operation,
The gas refrigerant discharged from the refrigerant compressor 1 is condensed and liquefied.
【００１８】冷媒受液器３は、冷媒液をため、かつ液冷
媒のみを通過させる。The refrigerant receiver 3 stores the refrigerant liquid and allows only the liquid refrigerant to pass therethrough.
【００１９】車内冷媒蒸発器５は、冷媒受液器３を通過
し、膨張弁４で減圧された液冷媒を蒸発させ、電動ブロ
ワ１８からの空気（最大約４５０m3／ｈ）を冷やし、車
内に冷風（最大約４０００kcal／ｈ）を送る。The in-vehicle refrigerant evaporator 5 passes through the refrigerant receiver 3, evaporates the liquid refrigerant decompressed by the expansion valve 4, cools the air (up to about 450 m 3 / h) from the electric blower 18, and Send cool air (max. 4000 kcal / h) to
【００２０】車内冷媒凝縮器６は、前記冷媒圧縮機１よ
り吐出されるガス冷媒を凝縮液化させ、その際の放熱に
より、前記電動ブロワ１８からの送風を加熱し、車内に
温風（最大約５０００kcal／ｈ）として送る。The in-vehicle refrigerant condenser 6 condenses and liquefies the gas refrigerant discharged from the refrigerant compressor 1, heats the air blown from the electric blower 18 by the heat radiation at that time, and generates warm air (up to approximately 5000 kcal / h).
【００２１】車外冷媒蒸発器８は、暖房運転時に使わ
れ、温水回路Ｂを流れる温水（走行用エンジン冷却水）
により、車外冷媒蒸発器８内を通過する冷媒を加熱、蒸
発させる。The out-of-vehicle refrigerant evaporator 8 is used during a heating operation, and warm water (engine cooling water for traveling) flowing through the hot water circuit B is used.
As a result, the refrigerant passing through the inside of the exterior refrigerant evaporator 8 is heated and evaporated.
【００２２】逆止弁９は、暖房及び除湿暖房運転時に冷
媒が前記車外冷媒凝縮器２に流れ込むことを防止する。
逆止弁１０は、冷房運転時に冷媒が前記車内冷媒凝縮器
６に流れ込むことを防止する。The check valve 9 prevents the refrigerant from flowing into the external refrigerant condenser 2 during the heating and dehumidifying heating operations.
The check valve 10 prevents the refrigerant from flowing into the in-vehicle refrigerant condenser 6 during the cooling operation.
【００２３】電磁弁１１は、冷房運転時に開弁され、暖
房及び除湿暖房運転時は閉弁される。電磁弁１２は、暖
房及び除湿暖房運転時に開弁され、冷房運転時に閉弁さ
れる。電磁弁１３は、冷房及び除湿暖房運転時に開弁さ
れ、暖房運転時に閉弁される。電磁弁１４は、暖房運転
時に開弁され、冷房及び除湿暖房時に閉弁される。The solenoid valve 11 is opened during the cooling operation and closed during the heating and dehumidifying / heating operations. The solenoid valve 12 is opened during the heating and dehumidifying heating operations and closed during the cooling operation. The solenoid valve 13 is opened during the cooling and dehumidifying / heating operations, and is closed during the heating operation. The solenoid valve 14 is opened during the heating operation and closed during cooling and dehumidifying heating.
【００２４】流量調整弁１５は、前記車外冷媒蒸発器８
に流入する温水流量を調整し、温水から冷媒への交換熱
量を調整することにより、前記車内冷媒凝縮器６からの
放熱熱量を調整する。The flow control valve 15 is connected to the external refrigerant evaporator 8.
The amount of heat dissipated from the in-vehicle refrigerant condenser 6 is adjusted by adjusting the flow rate of hot water flowing into the vehicle and adjusting the amount of heat exchanged from the hot water to the refrigerant.
【００２５】エアミックスダンパ１９は、冷房運転時
は、車内冷媒凝縮器６への通風路を閉じる。又、暖房及
び除湿暖房運転時にはその開度（ダンパ角度）を適当に
調整し、車内への吹き出し風温を調整する。The air mix damper 19 closes the air passage to the in-vehicle refrigerant condenser 6 during the cooling operation. During heating and dehumidifying / heating operation, the opening (damper angle) is appropriately adjusted to adjust the temperature of the air blown into the vehicle.
【００２６】次に上記構成の車両用空調装置Ａの作用
（作動）について説明する。Next, the operation (operation) of the vehicle air conditioner A having the above configuration will be described.
【００２７】先ず冷房運転について説明する。First, the cooling operation will be described.
【００２８】コントローラ（図示せず）が電磁弁１１，
１３を開弁し、電磁弁１２，１４を閉弁し、エアミック
スダンパ１９を車内冷媒凝縮器６への通風路が閉じるよ
うに動かす。冷媒は、冷媒圧縮機１→電磁弁１１→車外
冷媒凝縮器２→逆止弁９→冷媒受液器３→電磁弁１３→
膨張弁４→車内冷媒蒸発器５→冷媒圧縮機１と循環す
る。車外冷媒凝縮器２で放熱、車内冷媒蒸発器５で吸熱
が行われ、車内は冷房される。A controller (not shown) controls the solenoid valve 11,
13 is opened, the solenoid valves 12 and 14 are closed, and the air mix damper 19 is moved so that the ventilation path to the in-vehicle refrigerant condenser 6 is closed. The refrigerant is refrigerant compressor 1 → solenoid valve 11 → exterior refrigerant condenser 2 → check valve 9 → refrigerant receiver 3 → solenoid valve 13 →
The refrigerant circulates through the expansion valve 4 → the in-vehicle refrigerant evaporator 5 → the refrigerant compressor 1. The heat is released by the external refrigerant condenser 2 and the heat is absorbed by the internal refrigerant evaporator 5, so that the interior of the vehicle is cooled.
【００２９】次に暖房運転について説明する。Next, the heating operation will be described.
【００３０】コントローラ（図示せず）が電磁弁１２，
１４を開弁し、電磁弁１１，１３を閉弁し、エアミック
スダンパ１９を車内冷媒凝縮器６への通風路を開けるよ
うに動かす。温水は走行用エンジン１７→流量調整弁１
５→車外冷媒蒸発器８→走行用エンジン１７と循環し、
車外冷媒蒸発器８で冷媒を加熱する。冷媒は冷媒圧縮機
１→電磁弁１２→車内冷媒凝縮器６→逆止弁１０→冷媒
受液器３→電磁弁１４→膨張弁７→車外冷媒蒸発器８→
冷媒圧縮機１と循環する。冷媒が車外冷媒蒸発器８に入
ると、冷媒は温水より吸熱し、車内冷媒凝縮器６で放熱
し、車内の空気を加熱、暖房が行われる。A controller (not shown) controls the solenoid valve 12,
The valve 14 is opened, the solenoid valves 11 and 13 are closed, and the air mix damper 19 is moved so as to open the air passage to the in-vehicle refrigerant condenser 6. Hot water is supplied to the running engine 17 → flow control valve 1
5 → circulating with the refrigerant evaporator 8 outside the vehicle → the engine 17 for traveling,
The refrigerant is heated by the external refrigerant evaporator 8. The refrigerant is a refrigerant compressor 1 → an electromagnetic valve 12 → an in-vehicle refrigerant condenser 6 → a check valve 10 → a refrigerant receiver 3 → an electromagnetic valve 14 → an expansion valve 7 → an external refrigerant evaporator 8 →
Circulates with the refrigerant compressor 1. When the refrigerant enters the exterior refrigerant evaporator 8, the refrigerant absorbs heat from the hot water, radiates heat in the interior refrigerant condenser 6, and heats and heats the air inside the vehicle.
【００３１】次に除湿暖房運転について説明する。Next, the dehumidifying and heating operation will be described.
【００３２】コントローラ（図示せず）が電磁弁１２，
１３を開弁し、電磁弁１１，１４を閉弁し、エアミック
スダンパ１９を暖房運転時と同様に動かす。冷媒は、冷
媒圧縮機１→電磁弁１２→車内冷媒凝縮器６→逆止弁１
０→冷媒受液器３→電磁弁１３→膨張弁４→車内冷媒蒸
発器５→冷媒圧縮機１と循環する。車内冷媒蒸発器５で
一度吸熱、除湿された空気は、後流の車内冷媒凝縮器６
からの放熱で再熱され、車内は除湿暖房される。A controller (not shown) includes a solenoid valve 12,
13 is opened, the solenoid valves 11 and 14 are closed, and the air mix damper 19 is moved in the same manner as in the heating operation. Refrigerant is refrigerant compressor 1 → solenoid valve 12 → in-vehicle refrigerant condenser 6 → check valve 1
0 → refrigerant receiver 3 → solenoid valve 13 → expansion valve 4 → in-vehicle refrigerant evaporator 5 → refrigerant compressor 1. The air once absorbed and dehumidified by the in-vehicle refrigerant evaporator 5 is supplied to the downstream in-vehicle refrigerant condenser 6.
Reheated by the heat released from the vehicle, and the interior of the car is dehumidified and heated.
【００３３】以上の通り、本実施例によれば、暖房運転
及び除湿暖房運転は温水（エンジン冷却水）を循環させ
る温水回路Ｃから車外冷媒蒸発器８を介して冷媒が得た
熱を用いて行ない、温水は温水回路Ｃ内のみを循環させ
て車室内に導かないので、温水が漏れて乗員にかかる危
険がないという利点がある。また、暖房熱はエンジン冷
却水、即ち上記温水から得て冷媒配管を経由し車室内に
放熱するので、外気の低温にさしたる影響を受けること
なく十分な暖房が行なえるという利点がある。As described above, according to the present embodiment, the heating operation and the dehumidifying heating operation use the heat obtained by the refrigerant from the hot water circuit C that circulates the hot water (engine cooling water) via the external refrigerant evaporator 8. Since the hot water circulates only in the hot water circuit C and is not guided into the vehicle interior, there is an advantage that there is no danger of the hot water leaking to the occupant. Further, since the heating heat is obtained from the engine cooling water, that is, the above-mentioned warm water, and is radiated into the vehicle interior through the refrigerant pipe, there is an advantage that sufficient heating can be performed without being affected by the low temperature of the outside air.
【００３４】[0034]
【発明の効果】本発明は上記のように構成されるので次
の（１）〜（４）の効果を有する。Since the present invention is configured as described above, it has the following effects (1) to (4).
【００３５】（１）従来の車両用空調装置は、暖房運転
を行う為に、車内の熱交換器にエンジン冷却水（温水）
を直接導入せざるを得なかった。従って、車内の車両空
調装置全体を天井に設置することは、万一温水が漏れた
場合に乗員にかかってしまうことから、その様なレイア
ウトは実現できなかった。しかし、本発明によれば車内
空調装置への配管はすべて冷媒配管となり、前述の問題
点は解決され、天井への設置が可能となる。(1) In a conventional vehicle air conditioner, in order to perform a heating operation, engine cooling water (hot water) is supplied to a heat exchanger in the vehicle.
Had to be introduced directly. Therefore, if the entire vehicle air conditioner in the vehicle is installed on the ceiling, such a layout cannot be realized because the occupant would be affected if hot water leaks. However, according to the present invention, all pipes to the in-vehicle air conditioner are refrigerant pipes, which solves the above-mentioned problem and enables installation on the ceiling.
【００３６】（２）前記（１）に示した様に、車内空調
装置の天井への設置が可能となったことにより、従来の
様にインパネ内に車内空調装置を収める必要がなくな
り、インパネ内空間の有効利用が可能となる。(2) As shown in (1) above, since the in-vehicle air conditioner can be installed on the ceiling, it is no longer necessary to house the in-vehicle air conditioner in the instrument panel as in the prior art. Effective use of space becomes possible.
【００３７】（３）暖房運転時には外気より吸熱する従
来のヒートポンプ方式では、外気温に暖房能力が左右さ
れ、特に低外気温時は十分な暖房能力が得られないとい
う問題点があった。しかし、本発明によれば、エンジン
冷却水（温水）より吸熱する為、外気温の影響をあまり
受けずに安定した暖房能力が得られる。(3) In the conventional heat pump system in which heat is absorbed from outside air during the heating operation, the heating capacity is affected by the outside temperature, and there is a problem that sufficient heating capacity cannot be obtained particularly at low outside temperature. However, according to the present invention, since the heat is absorbed from the engine cooling water (hot water), a stable heating capacity can be obtained without being greatly affected by the outside air temperature.
【００３８】（４）従来のヒートポンプ方式では、除湿
用の熱交換器を持たない為、除湿暖房ができなかった。
しかし、本発明は、除湿用の熱交換器を有する機器構成
を成立させることができるので、除湿暖房が可能とな
る。(4) In the conventional heat pump system, dehumidifying and heating could not be performed because a heat exchanger for dehumidifying was not provided.
However, according to the present invention, since a device configuration having a heat exchanger for dehumidification can be established, dehumidification heating can be performed.
【００３９】（５）また、車内冷媒蒸発器と車内冷媒凝
縮器の双方に共通の冷媒を導くことができるので、車室
内に独立した２つの冷媒回路を設けることを必要とせ
ず、冷媒回路を簡略化することができるとともに、車内
の省スペースが可能となる。(5) Further, since a common refrigerant can be introduced to both the in-vehicle refrigerant evaporator and the in-vehicle refrigerant condenser, it is not necessary to provide two independent refrigerant circuits in the vehicle interior, and the refrigerant circuit is This can be simplified and the space in the vehicle can be saved.
【図１】本発明の一実施例に係る車両用空調装置の模式
的構成図。FIG. 1 is a schematic configuration diagram of a vehicle air conditioner according to an embodiment of the present invention.
【図２】従来の車両用空調装置の一例であるヒータコア
式の模式的構成図。FIG. 2 is a schematic configuration diagram of a heater core type which is an example of a conventional vehicle air conditioner.
【図３】従来の車両用空調装置の別の一例であるヒート
ポンプ式の模式的構成図。FIG. 3 is a schematic configuration diagram of a heat pump type which is another example of the conventional vehicle air conditioner.
１ 冷媒圧縮機 ２ 車外冷媒凝縮器 ３ 冷媒受液器 ４ 膨張弁 ５ 車内冷媒蒸発器 ６ 車内冷媒凝縮器 ７ 膨張弁 ８ 車外冷媒蒸発器 ９，１０ 逆止弁 １１〜１４ 電磁弁 １５ 流量調整弁 １６ ラジエータ １７ 走行用エンジン １８ 電動ブロワ １９ エアミックスダンパ REFERENCE SIGNS LIST 1 refrigerant compressor 2 external refrigerant condenser 3 refrigerant receiver 4 expansion valve 5 internal refrigerant evaporator 6 internal refrigerant condenser 7 expansion valve 8 external refrigerant evaporator 9,10 check valve 11-14 solenoid valve 15 flow control valve 16 Radiator 17 Driving engine 18 Electric blower 19 Air mix damper
フロントページの続き (72)発明者 吉越 明 名古屋市中村区岩塚町字高道１番地 三 菱重工業株式会社名古屋研究所内 (72)発明者 沢田 正夫 愛知県西春日井郡西枇杷島町字旭町３丁 目１番地 三菱重工業株式会社エアコン 製作所内 (72)発明者 井上 正志 愛知県西春日井郡西枇杷島町字旭町３丁 目１番地 三菱重工業株式会社エアコン 製作所内 (72)発明者 片山 薫 東京都港区芝五丁目33番８号 三菱自動 車工業株式会社内 (56)参考文献 特開 昭61−253212（ＪＰ，Ａ) 特開 昭61−211119（ＪＰ，Ａ) 実開 昭60−58507（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) B60H 1/32 624 B60H 1/32 621 F25B 13/00 321 F25B 27/02 Continuation of the front page (72) Inventor Akira Yoshikoshi 1 Takamichi, Iwazuka-cho, Nakamura-ku, Nagoya-shi Inside Nagoya Research Laboratories, Mitsubishi Heavy Industries, Ltd. No. 1 Mitsubishi Heavy Industries, Ltd. Air Conditioning Works (72) Inventor Masashi Inoue 3-chome, Asahimachi, Nishi-Biwajima-cho, Nishikasugai-gun, Aichi Prefecture 1-1, Mitsubishi Heavy Industries, Ltd. Air Conditioning Works (72) Inventor Kaoru Katayama Shiba, Minato-ku, Tokyo 5-33-8, Mitsubishi Motors Corporation (56) References JP-A-61-253212 (JP, A) JP-A-61-211119 (JP, A) Real opening 60-58507 (JP, U (58) Fields surveyed (Int.Cl. 6 , DB name) B60H 1/32 624 B60H 1/32 621 F25B 13/00 321 F25B 27/02
Claims (2)
より駆動される冷媒を圧縮する冷媒圧縮機、車室外に配
設されて前記冷媒を凝縮する車外冷媒凝縮器、車室外に
配設されるとともに前記冷媒圧縮機を駆動する為のエン
ジンの冷却水と冷媒とを熱交換することにより前記冷媒
を蒸発させる車外冷媒蒸発器、車室内に配設されて前記
冷媒を凝縮する車内冷媒凝縮器、車室内に配設されて前
記冷媒を蒸発せしめる車内冷媒蒸発器、および、液冷媒
を抽出する冷媒受液器を有し、前記圧縮機で圧縮された
冷媒を前記車内冷媒凝縮器、前記冷媒受液器、前記車内
冷媒蒸発器の順で循環せしめる冷房冷凍サイクル、前記
圧縮機で圧縮された冷媒を前記車内冷媒凝縮器、前記冷
媒受液器、前記車外冷媒蒸発器の順で循環せしめる暖房
ヒートポンプサイクル、および、前記圧縮機で圧縮され
た冷媒を前記車内冷媒凝縮器、前記冷媒受液器、前記車
内冷媒蒸発器の順で循環せしめる除湿暖房サイクル、に
切換設定可能な切換装置を備えたことを特徴とする車両
用空調装置。1. A refrigerant compressor for compressing a refrigerant driven by a water-cooled engine for traveling or air conditioning, which is disposed outside a vehicle compartment.
An external refrigerant condenser that is installed to condense the refrigerant,
And an engine for driving the refrigerant compressor.
Heat exchange between the cooling water of the gin and the refrigerant,
An external refrigerant evaporator for evaporating, the
In-vehicle refrigerant condenser for condensing refrigerant
An in-vehicle refrigerant evaporator for evaporating the refrigerant, and a liquid refrigerant
Having a refrigerant receiver for extracting
The refrigerant is supplied to the in-vehicle refrigerant condenser, the refrigerant receiver, the in-vehicle refrigerant.
A cooling refrigeration cycle that circulates in the order of the refrigerant evaporator,
The refrigerant compressed by the compressor is supplied to the in-vehicle refrigerant condenser,
Heating that circulates in the order of the medium receiver and the refrigerant evaporator outside the vehicle
Heat pump cycle, and compressed by the compressor
Refrigerant in the vehicle, the refrigerant receiver, the vehicle
Dehumidifying and heating cycle, which circulates in the order of the internal refrigerant evaporator
An air conditioner for a vehicle, comprising a switching device capable of setting switching .
上記車内冷媒蒸発器と車内冷媒凝縮器との間に設けられ
たエアミックスダンパと電動ブロワとを備えた車内空調
装置を車内天井に設置したことを特徴とする請求項１記
載の車両用空調装置。2. The in- vehicle refrigerant evaporator and the in-vehicle refrigerant condenser
Provided between the in-vehicle refrigerant evaporator and the in-vehicle refrigerant condenser.
The vehicle air conditioner according to claim 1, wherein the vehicle air conditioner including the air mix damper and the electric blower is installed on the vehicle interior ceiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5156914A JP2961196B2 (en) | 1993-06-28 | 1993-06-28 | Vehicle air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5156914A JP2961196B2 (en) | 1993-06-28 | 1993-06-28 | Vehicle air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH079844A JPH079844A (en) | 1995-01-13 |
| JP2961196B2 true JP2961196B2 (en) | 1999-10-12 |
Family
ID=15638143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5156914A Expired - Fee Related JP2961196B2 (en) | 1993-06-28 | 1993-06-28 | Vehicle air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2961196B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8776738B2 (en) | 1997-12-11 | 2014-07-15 | Jacobs Vehicle Systems, Inc | Variable lost motion valve actuator and method |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2897016A1 (en) | 2006-02-09 | 2007-08-10 | Vehicules Electr Societe Par A | ELECTRIC OR HYBRID AUTOMOTIVE VEHICLE HAVING A THERMAL CONDITIONING SYSTEM PROVIDING LOW LEVEL SOURCES |
| JP5142032B2 (en) * | 2008-07-01 | 2013-02-13 | 株式会社ヴァレオジャパン | Air conditioner for vehicles |
| JP5297154B2 (en) * | 2008-11-06 | 2013-09-25 | 三菱重工業株式会社 | Vehicle air conditioning system and operation control method thereof |
| EP2524829B1 (en) | 2010-01-15 | 2017-09-13 | Mitsubishi Heavy Industries, Ltd. | Vehicle air-conditioning system and driving control method therefor |
| JP5533207B2 (en) * | 2010-05-06 | 2014-06-25 | 株式会社日本自動車部品総合研究所 | Heat pump cycle |
| DE102012100525A1 (en) * | 2011-07-28 | 2013-01-31 | Visteon Global Technologies Inc. | Motor vehicle refrigerant circuit with a Kälteanlagen- and a heat pump circuit |
| DE102011052752A1 (en) | 2011-08-16 | 2013-02-21 | Visteon Global Technologies, Inc. | Modular vehicle air conditioning with heat pump functionality |
| JP6138427B2 (en) * | 2012-05-25 | 2017-05-31 | 三菱重工業株式会社 | Heat pump air conditioning system for vehicles |
| US20140060102A1 (en) * | 2012-09-04 | 2014-03-06 | GM Global Technology Operations LLC | Mild ambient vehicular heat pump system |
| JP6036266B2 (en) * | 2012-12-20 | 2016-11-30 | 株式会社リコー | Automatic document feeder and image forming apparatus |
| JP6257940B2 (en) | 2013-07-11 | 2018-01-10 | 三菱重工オートモーティブサーマルシステムズ株式会社 | Heat pump type vehicle air conditioning system and defrosting method thereof |
-
1993
- 1993-06-28 JP JP5156914A patent/JP2961196B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8776738B2 (en) | 1997-12-11 | 2014-07-15 | Jacobs Vehicle Systems, Inc | Variable lost motion valve actuator and method |
| US8820276B2 (en) | 1997-12-11 | 2014-09-02 | Jacobs Vehicle Systems, Inc. | Variable lost motion valve actuator and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH079844A (en) | 1995-01-13 |
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