JPH06156045A - Heat pump type air conditioner for vehicle - Google Patents
Heat pump type air conditioner for vehicleInfo
- Publication number
- JPH06156045A JPH06156045A JP31966792A JP31966792A JPH06156045A JP H06156045 A JPH06156045 A JP H06156045A JP 31966792 A JP31966792 A JP 31966792A JP 31966792 A JP31966792 A JP 31966792A JP H06156045 A JPH06156045 A JP H06156045A
- Authority
- JP
- Japan
- Prior art keywords
- air
- vehicle
- temperature
- mixing ratio
- compressor
- 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.)
- Pending
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、車両の冷暖房を圧縮機
を電動機で駆動するヒートポンプで行う空調装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for cooling and heating a vehicle by a heat pump that drives a compressor with an electric motor.
【０００２】[0002]
【従来の技術】従来の燃料駆動自動車用空調装置は、例
えば、図７にその具体的構成を示すように、冷房作用
は、冷媒を圧縮する圧縮機１をエンジンにて駆動し、室
外熱交換器２と室外熱交換器用送風装置３で車室外空気
に放熱して冷媒を凝縮液化させた後、その冷媒を冷媒絞
り装置４を介して、室内熱交換器５に導き、室内用送風
装置６により送風された空気を冷却しながら蒸発し冷房
作用を行うものであった。2. Description of the Related Art In a conventional fuel-driven automobile air conditioner, for example, as shown in the concrete structure of FIG. 7, the cooling action is to drive a compressor 1 for compressing a refrigerant by an engine to perform outdoor heat exchange. After the heat is radiated to the air outside the vehicle compartment to condense and liquefy the refrigerant by the air conditioner 2 and the outdoor heat exchanger blower 3, the refrigerant is guided to the indoor heat exchanger 5 via the refrigerant expansion device 4, and the indoor blower 6 The air blown by is evaporated while cooling and the cooling action is performed.
【０００３】また暖房作用は、前記圧縮機１を停止しヒ
ータコア１５にエンジンの冷却水（温水）を流し、室内
用送風装置６により送風された空気を加熱するものであ
る。The heating action is to stop the compressor 1 and let the engine cooling water (warm water) flow through the heater core 15 to heat the air blown by the indoor blower 6.
【０００４】車室内空気吹出口１０、１１、１２より吹
き出される空気温度の調節は、通風ダクト２０内に配さ
れたミックスダンパ１６の開度調節にてヒータコア１５
を流れる温風と、ヒータコア１５をバイパスする冷風の
量を調節して行うものである。更に、圧縮機１をエンジ
ンにて駆動させて、室内熱交換器５にて冷却された空気
をヒータコア１５にて再加熱することもできる。従っ
て、ミックスダンパ１６を用いることにより吹出温度を
冷房から暖房へまたその逆に暖房から冷房へ連続して変
化させることが可能である。The temperature of the air blown from the vehicle interior air outlets 10, 11, 12 is adjusted by adjusting the opening of the mix damper 16 arranged in the ventilation duct 20.
This is performed by adjusting the amounts of warm air flowing through the heater core 15 and cold air bypassing the heater core 15. Further, the compressor 1 can be driven by the engine and the air cooled by the indoor heat exchanger 5 can be reheated by the heater core 15. Therefore, by using the mix damper 16, it is possible to continuously change the blowout temperature from cooling to heating and vice versa.
【０００５】一方、圧縮機を電動機で駆動するヒートポ
ンプ空調装置例えば電気駆動自動車用空調装置を図８に
示す。冷房作用は上記と同様であるが、暖房作用につい
ては上記エンジンの冷却水（温水）は無いため、圧縮機
１の下流に四方切替え弁７を用いて冷媒流路を逆にし、
室内熱交換器５で室内用送風装置６により送風された空
気を加熱して冷媒を凝縮液化させた後、その冷媒を冷媒
絞り装置４を介して室外熱交換器２に導き、ここで車室
外の空気を冷却しながら冷媒が吸熱、蒸発するヒートポ
ンプ暖房を行うようになっている。従って、上記燃料駆
動自動車用空調装置のようにミックスダンパはないた
め、吹出温度調節は、電動機８を駆動する電動機駆動装
置９を制御して、圧縮機１の回転数を調節して行うこと
となる。また、暖冷房の切り替えは、四方切替え弁７を
用いて冷媒流路を切り替えて行うこととなる。On the other hand, FIG. 8 shows a heat pump air conditioner for driving a compressor by an electric motor, for example, an air conditioner for an electrically driven automobile. The cooling action is the same as the above, but since there is no engine cooling water (hot water) for the heating action, the four-way switching valve 7 is used downstream of the compressor 1 to reverse the refrigerant flow path,
After the air blown by the indoor air blower 6 is heated in the indoor heat exchanger 5 to condense and liquefy the refrigerant, the refrigerant is guided to the outdoor heat exchanger 2 via the refrigerant expansion device 4, where the vehicle exterior Heat pump heating is performed in which the refrigerant absorbs and evaporates while cooling the air. Therefore, since there is no mix damper like the air conditioner for a fuel-driven automobile, the blow-out temperature is adjusted by controlling the electric motor driving device 9 that drives the electric motor 8 to adjust the rotation speed of the compressor 1. Become. Further, switching between heating and cooling is performed by switching the refrigerant flow path using the four-way switching valve 7.
【０００６】[0006]
【発明が解決しようとする課題】圧縮機を電動機で駆動
するヒートポンプ空調装置例えば電気駆動自動車用空調
装置においては、上記のごとく、暖冷房の切り替えは、
四方切替え弁を用いて冷媒流路を切り替えて行う必要が
あるが、冷凍サイクルの保護のために、切り替えを行う
際には一旦、電動機（圧縮機）の回転数を下げて圧縮機
の能力を下げるかまたは停止させ冷凍サイクルの安定を
待たなければならない。In a heat pump air conditioner for driving a compressor by an electric motor, for example, an air conditioner for an electrically driven automobile, switching between heating and cooling is performed as described above.
It is necessary to switch the refrigerant flow path using a four-way switching valve, but to protect the refrigeration cycle, the speed of the electric motor (compressor) should be lowered once to switch the compressor capacity when switching. You must lower or stop it and wait for the refrigeration cycle to stabilize.
【０００７】従って、例えば、車室外温度は低くても車
室内温度が高く冷房スタートの場合、途中で暖房に切り
替える必要があるがこの切り替える間に車室内温度が図
５に示すごとく、また吹出温度が図６に示すごとく大き
く変化し快適性を損なってしまう。一方、従来の燃料駆
動自動車用空調装置は図４に示すごとく車室内温度、吹
出温度ともにスムーズな変化を示す。Therefore, for example, when the temperature inside the passenger compartment is low but the temperature inside the passenger compartment is high and cooling starts, it is necessary to switch to heating during the switching, but during this switching, the passenger compartment temperature is as shown in FIG. However, as shown in FIG. 6, it greatly changes and the comfort is impaired. On the other hand, the conventional air conditioner for a fuel-driven automobile shows a smooth change in the vehicle interior temperature and the outlet temperature as shown in FIG.
【０００８】但し、ヒータコア相当の加熱能力のある電
気ヒータを設置したり、冷凍サイクルを２系統設けてヒ
ータコアに代わり暖房専用の室内熱交換器を設置すれば
ミックスダンパを設けて、従来の燃料駆動自動車用空調
装置と同様に、吹出温度を冷房から暖房へまたその逆に
暖房から冷房へ連続して変化させることが可能である。
しかしながら次の点で実施が困難である。前者は多大の
電力を必要とし、電気駆動自動車においては蓄電池の容
量が限られているため車両の走行性能に影響を及ぼして
しまう。また後者は図９に示すごとく構成部品点数が多
いために車両への搭載スペースを大きく必要とし、また
コストも大きくなってしまう。However, if an electric heater having a heating capacity equivalent to that of a heater core is installed, or if two refrigeration cycles are provided and an indoor heat exchanger dedicated to heating is installed instead of the heater core, a mix damper is provided to drive a conventional fuel drive. Similar to an automobile air conditioner, it is possible to continuously change the outlet temperature from cooling to heating and vice versa.
However, it is difficult to implement in the following points. The former requires a large amount of electric power, and in an electrically driven vehicle, the storage battery has a limited capacity, which affects the running performance of the vehicle. Further, the latter requires a large installation space in the vehicle because of the large number of constituent parts as shown in FIG. 9, and also increases the cost.
【０００９】従って、本発明は消費電力が小さく且つ簡
単な構成で、上記課題を解決する車両用ヒートポンプ式
空調装置を提供することを目的とする。Therefore, it is an object of the present invention to provide a heat pump type air conditioner for a vehicle which has a simple structure and consumes less power.
【００１０】[0010]
【課題を解決するための手段】本発明は、第１の手段と
して上記課題を解決するために、車室外温度、車室内温
度、日射量、乗員により指定された設定温度等により車
室内を自動的に目標温度に到達、維持させるべく必要な
吹出温度を演算し、少なくとも電動機駆動装置、室内用
送風装置、混合比調節装置及び四方切替え弁を制御して
車室内温度を自動調節するコントロールユニットを備え
た車両用ヒートポンプ式空調装置において、空調始動過
渡期に暖冷房の切り替えを行う際、吹出温度と車室外温
度との差が所定値以下となれば圧縮機の能力を下げるか
または停止させて四方切替え弁を切り替え、且つ混合比
調節装置にて車室外空気導入とする。In order to solve the above-mentioned problems, a first aspect of the present invention is to automatically adjust the inside of the vehicle interior by the temperature outside the vehicle interior, the temperature inside the vehicle interior, the amount of solar radiation, the set temperature designated by the occupant, and the like. A control unit that automatically calculates the blowout temperature required to reach and maintain the target temperature and automatically controls the vehicle interior temperature by controlling at least the electric motor drive device, indoor blower device, mixing ratio adjustment device, and four-way switching valve. In the equipped vehicle heat pump type air conditioner, when switching between heating and cooling in the transition period of air conditioning start, if the difference between the blowout temperature and the temperature outside the vehicle is below a predetermined value, the capacity of the compressor is reduced or stopped. The four-way switching valve is switched, and the air outside the vehicle is introduced by the mixing ratio controller.
【００１１】本発明は、第２の手段として上記課題を解
決するために、車室外温度、車室内温度、日射量、乗員
により指定された設定温度等により車室内を自動的に目
標温度に到達、維持させるべく必要な吹出温度を演算
し、少なくとも電動機駆動装置、室内用送風装置、混合
比調節装置及び四方切替え弁を制御して車室内温度を自
動調節するコントロールユニットとを備えた車両用ヒー
トポンプ式空調装置において、空調始動過渡期に暖冷房
の切り替えを行う際、室内用送風装置による送風を低風
量とし、圧縮機の能力を下げるかまたは停止させて四方
切替え弁を切り替え、且つ混合比調節装置にて車室外空
気導入とする。In order to solve the above problems, the present invention automatically attains a target temperature in the vehicle interior by the vehicle exterior temperature, the vehicle interior temperature, the amount of solar radiation, the preset temperature designated by the occupant, and the like. A heat pump for a vehicle, which includes a control unit that calculates a blowout temperature required to maintain the temperature and controls at least an electric motor drive device, an indoor blower device, a mixing ratio adjustment device, and a four-way switching valve to automatically adjust the vehicle interior temperature In the air conditioning system, when switching between heating and cooling during the transition period of air conditioning start, the amount of air blown by the indoor air blower is set to a low amount, and the capacity of the compressor is reduced or stopped to switch the four-way switching valve and adjust the mixing ratio. The device introduces air outside the vehicle.
【００１２】[0012]
【作用】本発明の第１の手段によれば、空調始動過渡期
に暖冷房の切り替えを行う際、吹出温度と車室外温度と
の差が所定値以下となれば圧縮機の能力を下げるかまた
は停止させて四方切替え弁を切り替え、且つ混合比調節
装置にて車室外空気導入とするので以下のように作用す
る。According to the first means of the present invention, when the heating / cooling is switched in the transition period of the air conditioning start, is the capacity of the compressor lowered if the difference between the blowout temperature and the temperature outside the vehicle is below a predetermined value? Alternatively, it is stopped to switch the four-way switching valve, and the air outside the vehicle compartment is introduced by the mixing ratio adjusting device, so that it operates as follows.
【００１３】車室外温度は低くても、車室内温度が高く
冷房スタートの場合、途中で暖房に切り替える必要があ
る。スタート時点から吹出温度が車室内温度が下降する
に従い上昇してゆく場合、吹出温度が車室外温度に近く
なりその差が所定値以下となった時点で、圧縮機の能力
を下げるかまたは停止させて四方切替え弁を切り替え
る。但し、この時、混合比調節装置にて車室外空気導入
とするが吹出温度が車室外温度に近い状況であるため吹
出温度の大きな変動を防止できる。Even if the temperature outside the vehicle compartment is low, if the temperature inside the vehicle compartment is high and cooling is started, it is necessary to switch to heating in the middle. If the outlet temperature rises as the vehicle interior temperature decreases from the start, when the outlet temperature is close to the vehicle exterior temperature and the difference is below a specified value, the capacity of the compressor is reduced or stopped. Switch the four-way switching valve. However, at this time, the air outside the vehicle compartment is introduced by the mixing ratio adjusting device, but since the blowout temperature is close to the temperature outside the vehicle compartment, a large fluctuation in the blowout temperature can be prevented.
【００１４】逆に、車室外温度は高くても、車室内温度
が低く暖房スタートの場合も同様にして吹出温度の大き
な変動を防止できる。On the contrary, even when the temperature outside the vehicle compartment is high, but the temperature inside the vehicle compartment is low and the heating is started, a large fluctuation in the blowout temperature can be similarly prevented.
【００１５】本発明の第２の手段によれば、空調始動過
渡期に暖冷房の切り替えを行う際、室内用送風装置によ
る送風を低風量とし、圧縮機の能力を下げるかまたは停
止させて四方切替え弁を切り替え、且つ混合比調節装置
にて車室外空気導入とするので以下のように作用する。According to the second means of the present invention, when the heating / cooling is switched in the transition period of the air conditioning start, the air blown by the indoor air blower is set to a low air volume, and the capacity of the compressor is lowered or stopped to be four-way. Since the switching valve is switched and the air outside the vehicle compartment is introduced by the mixing ratio adjusting device, it operates as follows.
【００１６】上記同様、車室外温度は低くても、車室内
温度が高く冷房スタートの場合、途中で暖房に切り替え
る必要がある。スタート時点から吹出温度が車室内温度
の低下には関係なく変化しない場合、吹出温度は車室外
温度には近くない状況であるので、圧縮機の能力を下げ
るかまたは停止させて四方切替え弁を切り替え且つ混合
比調節装置にて車室外空気導入とする時、室内用送風装
置による送風を低風量とすることで室内熱交換器の熱容
量により吹出温度の大きな変化を防止できる。Similarly to the above, even if the temperature outside the vehicle is low, if the temperature inside the vehicle is high and cooling is started, it is necessary to switch to heating midway. If the outlet temperature does not change from the start regardless of the decrease in the passenger compartment temperature, the outlet temperature is not close to the outside temperature of the passenger compartment.Therefore, reduce or stop the compressor capacity and switch the four-way switching valve. Moreover, when the air outside the vehicle compartment is introduced by the mixing ratio adjusting device, a large change in the blowout temperature due to the heat capacity of the indoor heat exchanger can be prevented by reducing the amount of air blown by the indoor blower.
【００１７】[0017]
【実施例】本発明の実施例を図面により説明する。Embodiments of the present invention will be described with reference to the drawings.
【００１８】図１に本発明の実施例に係る車両用ヒート
ポンプ式空調装置の構成図を示す。ここで前出の図８従
来の車両用ヒートポンプ式空調装置の構成図との相違点
は、本発明の実施例には、図８従来例に比べ車室外温度
センサー２１、車室内温度センサー２２、日射量センサ
ー２３、設定温度入力器２４、コントロールユニット２
５、導入空気切替ダンパ用アクチュエータ２６、送風機
駆動装置３５及び四方切替え弁駆動装置３６が追加され
ている点である。FIG. 1 shows a block diagram of a vehicle heat pump type air conditioner according to an embodiment of the present invention. Here, the difference from the configuration diagram of the conventional heat pump air conditioner for a vehicle shown in FIG. 8 is that the embodiment of the present invention is different from the conventional example in FIG. Solar radiation sensor 23, set temperature input device 24, control unit 2
5, the introduction air switching damper actuator 26, the blower drive device 35, and the four-way switching valve drive device 36 are added.
【００１９】図２に請求項１の本発明の実施例に係る車
両用ヒートポンプ式空調装置の作動図１を示す。FIG. 2 shows an operation diagram 1 of the vehicular heat pump type air conditioner according to the first embodiment of the present invention.
【００２０】目標温度が車室外温度より高いため車室内
温度の安定時には暖房となるが、スタート時点では車室
内温度が高いため車室内温度を速く安定させるために、
冷房でスタートする必要がある。ここで、四方切替え弁
７は冷房側（図１にて破線で示す）とし、導入空気は車
室内空気もしくは車室外空気もしくは両者を混合した空
気のいずれでも良い。Since the target temperature is higher than the outside temperature of the vehicle, the heating is performed when the temperature inside the vehicle is stable. However, since the temperature inside the vehicle is high at the time of starting, in order to stabilize the temperature inside the vehicle quickly,
It is necessary to start in the air conditioner. Here, the four-way switching valve 7 is on the cooling side (indicated by a broken line in FIG. 1), and the introduced air may be vehicle interior air, vehicle exterior air, or air that is a mixture of both.
【００２１】冷房スタートの吹出温度は低いが、車室内
温度が下降するに従い吹出温度が上昇してゆくようにコ
ントロールユニット２５の出力がプログラムされてい
る。The output of the control unit 25 is programmed so that the outlet temperature at the start of cooling is low, but the outlet temperature rises as the passenger compartment temperature decreases.
【００２２】吹出温度が上昇して次第に車室外温度に近
ずき、その差が所定値に達すると、コントロールユニッ
ト２５は、電動機駆動装置９により圧縮機１を停止さ
せ、四方切替え弁駆動装置３６により四方切替え弁７を
切り替え暖房側とする。ここで、導入空気は導入空気切
替ダンパ１９により車室外空気とする。送風量は特に変
更の必要はない。When the outlet temperature rises and gradually approaches the vehicle exterior temperature, and the difference reaches a predetermined value, the control unit 25 stops the compressor 1 by the electric motor drive device 9, and the four-way switching valve drive device 36. Thus, the four-way switching valve 7 is switched to the heating side. Here, the introduced air is made outside the vehicle by the introduced air switching damper 19. There is no need to change the air flow rate.
【００２３】図２に示すごとく、吹出温度が車室外温度
に近い状態で車室外空気導入とするため吹出温度変動は
少なく、車室内温度の変動もない。As shown in FIG. 2, since the air outside the vehicle compartment is introduced when the air outlet temperature is close to the vehicle exterior temperature, there is little variation in the air outlet temperature, and there is no variation in the vehicle interior temperature.
【００２４】次に、冷凍サイクルが安定して、四方切替
え弁７を暖房側（図１にて実線で示す）として暖房で再
起動するとき、導入空気は車室外空気であり吹出温度は
車室外温度に近くからスタートできスームズな立ち上が
りとなる。Next, when the refrigerating cycle is stable and the four-way switching valve 7 is restarted by heating with the heating side (shown by the solid line in FIG. 1), the introduced air is the air outside the vehicle compartment and the outlet temperature is outside the vehicle compartment. You can start near the temperature and have a smooth start.
【００２５】但し、暖冷房停止中に導入空気を車室内空
気とすると、吹出温度は大きく上昇するので車室内空気
導入とすることはできない。However, if the introduced air is the air in the vehicle compartment while the heating / cooling is stopped, the air temperature in the vehicle is greatly increased, so that the air in the vehicle compartment cannot be introduced.
【００２６】また、暖冷房停止中に圧縮機１は停止とし
たが電動機駆動装置９により電動機８（圧縮機１）の回
転数を下げることにより圧縮機１の能力を下げてもよ
い。Although the compressor 1 is stopped while the heating / cooling is stopped, the capacity of the compressor 1 may be lowered by lowering the rotation speed of the electric motor 8 (compressor 1) by the electric motor drive device 9.
【００２７】図３に請求項２の本発明の実施例に係る車
両用ヒートポンプ式空調装置の作動図２に示す。FIG. 3 shows the operation of the heat pump type air conditioner for a vehicle according to the second embodiment of the present invention.
【００２８】前記、図２請求項１の本発明の実施例と同
様、目標温度が車室外温度より高いため車室内温度の安
定時には暖房となるが、スタート時点では車室内温度が
高いため車室内温度を速く安定させるために、冷房でス
タートする必要がある。ここで、四方切替え弁７は冷房
側（図１にて破線で示す）とし、導入空気は車室内空気
もしくは車室外空気もしくは両者を混合した空気のいず
れでも良い。Similar to the embodiment of the present invention shown in claim 2 of FIG. 2, since the target temperature is higher than the outside temperature of the vehicle compartment, the vehicle is heated when the temperature inside the vehicle is stable. In order to stabilize the temperature quickly, it is necessary to start with cooling. Here, the four-way switching valve 7 is on the cooling side (indicated by a broken line in FIG. 1), and the introduced air may be vehicle interior air, vehicle exterior air, or air that is a mixture of both.
【００２９】冷房スタートの低い吹出温度を継続して車
室内温度を速く下降させるため、図２請求項１の本発明
の実施例のような車室内温度が下降するに従い吹出温度
が上昇させるプログラムとはしていない。A program for increasing the outlet temperature as the passenger compartment temperature lowers as in the embodiment of the present invention of FIG. 2 in order to continue lowering the passenger compartment temperature at the start of cooling and rapidly lower the passenger compartment temperature. I haven't.
【００３０】所定時間低い吹出温度を継続したところ
で、コントロールユニット２５は、電動機駆動装置９に
より圧縮機１を停止させ、四方切替え弁駆動装置３６に
より四方切替え弁７を切り替え暖房側とする。ここで、
導入空気は導入空気切替ダンパ１９により車室外空気と
する。また、送風量は送風機駆動装置３５により低風量
とする。When the low blowout temperature is continued for a predetermined time, the control unit 25 stops the compressor 1 by the electric motor drive device 9 and switches the four-way switching valve 7 to the heating side by the four-way switching valve drive device 36. here,
The introduced air is set as the air outside the vehicle compartment by the introduced air switching damper 19. Further, the air flow rate is made low by the blower drive device 35.
【００３１】ここで、図３のごとく、冷房スタートの低
い吹出温度と車室外温度との差は大きいが、風量が小さ
いため吹出温度の上昇はゆっくりとなり急変を防止でき
る。図２請求項１の本発明の実施例と同様、次のことが
いえる。Here, as shown in FIG. 3, the difference between the low blowout temperature at the start of cooling and the outside temperature of the vehicle is large, but since the air volume is small, the rise in the blowout temperature becomes slow and a sudden change can be prevented. Similar to the embodiment of the present invention of FIG. 2 claim 1, the following can be said.
【００３２】冷凍サイクルが安定して、四方切替え弁７
を暖房側（図１にて実線で示す）として暖房で再起動す
るとき、導入空気は車室外空気であり吹出温度は車室外
温度に近くからスタートできスムーズな立ち上がりとな
る。The refrigeration cycle is stable and the four-way switching valve 7
When the engine is restarted by heating as the heating side (shown by the solid line in FIG. 1), the introduced air is the air outside the vehicle compartment and the outlet temperature can start near the vehicle outside temperature, resulting in a smooth start-up.
【００３３】但し、暖冷房停止中に導入空気を車室内空
気とすると、吹出温度は大きく上昇するので車室内空気
導入とすることはできない。However, if the introduced air is the air inside the vehicle while the heating / cooling is stopped, the air temperature in the vehicle is greatly increased, so that the air cannot be introduced into the vehicle.
【００３４】また、暖冷房停止中に圧縮機１は停止とし
たが電動機駆動装置９により電動機８（圧縮機１）の回
転数を下げることにより圧縮機１の能力を下げてもよ
い。Although the compressor 1 is stopped while the heating and cooling are stopped, the capacity of the compressor 1 may be lowered by lowering the rotation speed of the electric motor 8 (compressor 1) by the electric motor drive device 9.
【００３５】尚、本実施例に限らず暖冷房の停止中、送
風機駆動装置３５により風量を徐々に上げたり、送風機
を停止させて走行動圧風を導入したり、種々の応用が可
能である。Not limited to this embodiment, various kinds of applications are possible such that the air volume is gradually increased by the blower drive device 35 while the heating / cooling is stopped, or the traveling dynamic pressure air is introduced by stopping the blower. .
【００３６】また、熱交換器の配置、台数、構成などに
おいても、本発明の主旨を満たす範囲で種々の応用が可
能である。Further, with respect to the arrangement, the number of units, the configuration, etc. of the heat exchanger, various applications are possible within the scope of the gist of the present invention.
【００３７】[0037]
【発明の効果】ヒータコア相当の加熱能力のある電気ヒ
ータを設置したり、冷凍サイクルを２系統設けてヒータ
コアに代わり暖房専用の室内熱交換器を設置してミック
スダンパを設けることなく、消費電力が小さく且つ簡単
な構成で、車室内温度、吹出温度の変化を防止し快適性
を損うことなく、冷凍サイクルを保護しつつ空調始動過
渡期の暖冷房の切り替えを行うことができる。EFFECTS OF THE INVENTION Electric power having a heating capacity equivalent to that of a heater core is installed, or two refrigeration cycles are provided and an indoor heat exchanger dedicated to heating is installed in place of the heater core and a mix damper is not installed, thereby reducing power consumption. With a small and simple configuration, it is possible to switch the heating / cooling during the transition period of the air conditioning start while protecting the refrigeration cycle and preventing changes in the vehicle interior temperature and the outlet temperature without impairing comfort.
【図１】本発明の実施例に係る車両用ヒートポンプ式空
調装置の構成図FIG. 1 is a configuration diagram of a vehicle heat pump type air conditioner according to an embodiment of the present invention.
【図２】本発明の実施例に係る車両用ヒートポンプ式空
調装置の作動説明図FIG. 2 is an operation explanatory view of a vehicle heat pump type air conditioner according to an embodiment of the present invention.
【図３】本発明の実施例に係る車両用ヒートポンプ式空
調装置の作動説明図FIG. 3 is an operation explanatory view of a vehicle heat pump type air conditioner according to an embodiment of the present invention.
【図４】従来の燃料エンジン駆動自動車用空調装置の作
動説明図FIG. 4 is an operation explanatory view of a conventional air conditioner for a vehicle driven by a fuel engine.
【図５】従来の車両用ヒートポンプ式空調装置の作動説
明図FIG. 5 is an operation explanatory diagram of a conventional vehicle heat pump type air conditioner.
【図６】従来の車両用ヒートポンプ式空調装置の作動説
明図FIG. 6 is an operation explanatory view of a conventional vehicle heat pump type air conditioner.
【図７】従来の燃料エンジン駆動自動車用空調装置の構
成図FIG. 7 is a block diagram of a conventional air conditioner for a vehicle driven by a fuel engine.
【図８】従来の車両用ヒートポンプ式空調装置の構成図FIG. 8 is a configuration diagram of a conventional vehicle heat pump type air conditioner.
【図９】冷凍サイクルを２系統設けた車両用ヒートポン
プ式空調装置の構成図FIG. 9 is a block diagram of a heat pump type air conditioner for a vehicle provided with two refrigeration cycles.
１ 圧縮機 ２ 室外熱交換器 ３ 室外熱交換器用送風装置 ４ 冷媒絞り装置 ５ 室内熱交換器 ６ 室内用送風装置 ７ 四方切替え弁 ８ 電動機 ９ 電動機駆動装置 １０ ベント吹出口 １１ ヒート吹出口 １２ デフロスト吹出口 １３ ベント・ヒート吹出口切替ダンパ １４ デフロスト吹出口ダンパ １５ ヒータコア １６ ミックスダンパ １７ 車室外空気導入口 １８ 車室内空気導入口 １９ 導入空気切替ダンパ ２０ 通風ダクト ２１ 車室外温度センサー ２２ 車室内温度センサー ２３ 日射量センサー ２４ 設定温度入力器 ２５ コントロールユニット ２６ 導入空気切替ダンパ用アクチュエータ ２７ 第２の圧縮機 ２８ 第２の室外熱交換器 ２９ 第２の室外熱交換器用送風装置 ３０ 第２の冷媒絞り装置 ３１ 第２の室内熱交換器 ３２ 第２の四方切替え弁 ３３ 第２の圧縮機 ３４ 第２の電動機 ３５ 送風機駆動装置 ３６ 四方切替え弁駆動装置 DESCRIPTION OF SYMBOLS 1 Compressor 2 Outdoor heat exchanger 3 Blower for outdoor heat exchanger 4 Refrigerant expansion device 5 Indoor heat exchanger 6 Indoor blower 7 Four-way switching valve 8 Electric motor 9 Electric motor drive 10 Vent outlet 11 Heat outlet 12 Defrost blow Outlet 13 Vent / heat air outlet switching damper 14 Defrost air outlet damper 15 Heater core 16 Mix damper 17 Outside air introducing port 18 Vehicle interior air introducing port 19 Introducing air switching damper 20 Ventilation duct 21 Vehicle outside temperature sensor 22 Vehicle interior temperature sensor 23 Solar radiation sensor 24 Set temperature input device 25 Control unit 26 Actuator for introduced air switching damper 27 Second compressor 28 Second outdoor heat exchanger 29 Blower device for second outdoor heat exchanger 30 Second refrigerant expansion device 31 Second indoor heat exchanger 32 Second four-way switching 33 second compressor 34 second electric motor 35 blower driver 36 four-way switching valve actuating device
Claims (2)
者を混合した空気を導入して送風する室内用送風装置
と、当該混合比を調節する混合比調節装置と、この室内
用送風装置により送風された空気を車室内に導く通風ダ
クトと、この通風ダクト内に配設された室内熱交換器
と、通風ダクトを通過した空気の車室内への吹出口と、
四方切替え弁と、冷媒絞り装置と、室外に設置された室
外熱交換器と、室外熱交換器用送風装置と、冷媒を圧縮
循環させる圧縮機と、圧縮機を駆動する電動機と、電動
機を駆動する伝導駆動装置と、車室外温度、車室内温
度、日射量、乗員により指定された設定温度等により車
室内を自動的に目標温度に到達、維持させるべく必要な
吹出温度を演算し、少なくとも電動機駆動装置、室内用
送風装置、混合比調節装置及び四方切替え弁を制御して
車室内温度を自動調節するコントロールユニットとを備
え、空調始動過渡期に暖冷房の切り替えを行う際、吹出
温度と車室外温度との差が所定値以下となれば圧縮機の
能力を下げるか停止させて四方切替え弁を切り替え、且
つ混合比調節装置にて車室外空気導入とすることを特徴
とする車両用ヒートポンプ式空調装置。1. An indoor air blower for introducing and blowing air into a vehicle compartment, an air outside the vehicle, or a mixture of both air, a mixing ratio adjuster for adjusting the mixing ratio, and air blown by the indoor air blower. A ventilation duct for guiding the air into the vehicle compartment, an indoor heat exchanger arranged in the ventilation duct, and an outlet for the air passing through the ventilation duct into the vehicle compartment,
Four-way switching valve, refrigerant expansion device, outdoor heat exchanger installed outdoors, blower device for outdoor heat exchanger, compressor for compressing and circulating refrigerant, electric motor for driving compressor, and driving electric motor Based on the conduction drive, the temperature outside the passenger compartment, the temperature inside the passenger compartment, the amount of solar radiation, the set temperature specified by the occupant, etc., calculates the blowout temperature necessary to automatically reach and maintain the target temperature in the passenger compartment, and at least drive the motor. Equipped with a control unit that automatically controls the vehicle interior temperature by controlling the air conditioner, indoor air blower, mixing ratio adjuster, and four-way switching valve. When the difference from the temperature becomes a predetermined value or less, the capacity of the compressor is reduced or stopped, the four-way switching valve is switched, and the air outside the vehicle compartment is introduced by the mixing ratio adjusting device. Pump type air-conditioning apparatus.
者を混合した空気を導入して送風する室内用送風装置
と、当該混合比を調節する混合比調節装置と、この室内
用送風装置により送風された空気を車室内に導く通風ダ
クトと、この通風ダクト内に配設された室内熱交換器
と、通風ダクトを通過した空気の車室内への吹出口と、
四方切替え弁と、冷媒絞り装置と、室外に設置された室
外熱交換器と、室外熱交換器用送風装置と、冷媒を圧縮
循環させる圧縮機と、圧縮機を駆動する電動機と、電動
機を駆動する電動機駆動装置と、車室外温度、車室内温
度、日射量、乗員により指定された設定温度等により車
室内を自動的に目標温度に到達、維持させるべく必要な
吹出温度を演算し、少なくとも電動機駆動装置、室内用
送風装置、混合比調節装置及び四方切替え弁を制御して
車室内温度を自動調節するコントロールユニットとを備
え、空調始動過渡期に暖冷房の切り替えを行う際、室内
用送風装置による送風を低風量とし、圧縮機の能力を下
げるか停止させて四方切替え弁を切り替え、且つ混合比
調節装置にて車室外空気導入とすることを特徴とする車
両用ヒートポンプ式空調装置。2. An indoor air blower for introducing and blowing air into a vehicle compartment, an air outside the vehicle, or a mixture of both air, a mixing ratio controller for adjusting the mixing ratio, and air blown by the indoor air blower. A ventilation duct for guiding the air into the vehicle compartment, an indoor heat exchanger arranged in the ventilation duct, and an outlet for the air passing through the ventilation duct into the vehicle compartment,
Four-way switching valve, refrigerant expansion device, outdoor heat exchanger installed outdoors, blower device for outdoor heat exchanger, compressor for compressing and circulating refrigerant, electric motor for driving compressor, and driving electric motor The motor drive device calculates the blowout temperature necessary to automatically reach and maintain the target temperature in the vehicle interior by the temperature outside the vehicle, the temperature inside the vehicle, the amount of solar radiation, the set temperature specified by the occupant, etc., and at least drive the motor. It is equipped with a control unit that automatically controls the vehicle interior temperature by controlling the air conditioner, indoor air blower, mixing ratio adjuster, and four-way switching valve, and uses the indoor air blower when switching between heating and cooling during the air conditioning startup transition period. A heat pump for a vehicle, characterized in that a low air flow is used, the capacity of the compressor is lowered or stopped to switch the four-way switching valve, and the air outside the vehicle compartment is introduced by a mixing ratio adjusting device. Air-conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31966792A JPH06156045A (en) | 1992-11-30 | 1992-11-30 | Heat pump type air conditioner for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31966792A JPH06156045A (en) | 1992-11-30 | 1992-11-30 | Heat pump type air conditioner for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06156045A true JPH06156045A (en) | 1994-06-03 |
Family
ID=18112854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31966792A Pending JPH06156045A (en) | 1992-11-30 | 1992-11-30 | Heat pump type air conditioner for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06156045A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239552A (en) * | 2018-03-09 | 2019-09-17 | 丰田自动车株式会社 | Vehicle driving system |
| CN114312233A (en) * | 2021-12-15 | 2022-04-12 | 东风汽车集团股份有限公司 | Vehicle energy-saving air conditioner and energy-saving method |
-
1992
- 1992-11-30 JP JP31966792A patent/JPH06156045A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110239552A (en) * | 2018-03-09 | 2019-09-17 | 丰田自动车株式会社 | Vehicle driving system |
| CN110239552B (en) * | 2018-03-09 | 2023-03-24 | 丰田自动车株式会社 | Vehicle driving system |
| CN114312233A (en) * | 2021-12-15 | 2022-04-12 | 东风汽车集团股份有限公司 | Vehicle energy-saving air conditioner and energy-saving method |
| CN114312233B (en) * | 2021-12-15 | 2023-09-12 | 东风汽车集团股份有限公司 | Energy-saving air conditioner and energy-saving method for vehicle |
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