JP2019119356A5

JP2019119356A5 -

Info

Publication number: JP2019119356A5
Application number: JP2018000907A
Authority: JP
Filing date: 2018-01-08
Publication date: 2020-07-02
Anticipated expiration: 2038-01-08

Description

送風機は、ラジエータ側から室外熱交換器側に風を送る正回転モードと、室外熱交換器側からラジエータ側に風を送る逆回転モードと、を有する。また、制御装置は、空調要求に応じて室外熱交換器を凝縮器として機能させる場合、送風機を逆回転モードで動作させる。ラジエータよりも車両前方側にはシャッタ（５００）が配置されている。制御装置は、送風機を逆回転モードで動作させるとき、シャッタを閉じる。
The blower has a forward rotation mode in which air is blown from the radiator side to the outdoor heat exchanger side, and a reverse rotation mode in which air is blown from the outdoor heat exchanger side to the radiator side. In addition, the control device operates the blower in the reverse rotation mode when the outdoor heat exchanger functions as the condenser in response to the air conditioning request. A shutter (500) is arranged on the front side of the vehicle with respect to the radiator. The control device closes the shutter when operating the blower in the reverse rotation mode.

Claims

An outdoor heat exchanger (205) in which a refrigerant of a refrigeration cycle is made to flow by a vehicle compressor (201);
A radiator (301, 310, 319) arranged on the front side of the vehicle with respect to the outdoor heat exchanger, while the heat transport medium is caused to flow by the vehicle feeders (302, 311, 322),
A blower (206) arranged on the vehicle rear side of the outdoor heat exchanger,
A control device (400) for controlling the compressor and the supply device according to an air conditioning request of the vehicle;
Including,
The blower has a forward rotation mode for sending air from the radiator side to the outdoor heat exchanger side, and a reverse rotation mode for sending air from the outdoor heat exchanger side to the radiator side,
When the outdoor heat exchanger functions as a condenser in response to the air conditioning request, the control device operates the blower in the reverse rotation mode ,
A shutter (500) is arranged on the front side of the vehicle with respect to the radiator,
The control device is a vehicle cooling device that closes the shutter when the blower is operated in the reverse rotation mode .

When the outdoor heat exchanger functions as a condenser according to the air conditioning request, the refrigeration cycle is in a cooling operation, the cooling load of the cooling operation is smaller than a reference load, and the temperature of the heat transport medium is The vehicle cooling device according to claim 1, wherein is lower than the reference temperature.

When the outdoor heat exchanger functions as a condenser according to the air conditioning request, the refrigeration cycle is in a cooling operation, the cooling load of the cooling operation is smaller than a reference load, and the temperature of the heat transport medium is There is the reference temperature or more, the vehicular cooling apparatus according to claim 1 speed of the vehicle is the case slower than the reference vehicle speed.

When the outdoor heat exchanger functions as a condenser in response to the air conditioning request, the refrigeration cycle is in a cooling operation, the cooling load of the cooling operation is a reference load or more, the temperature of the heat transport medium. The vehicle cooling device according to claim 1, wherein is above a reference temperature.

The case where the outdoor heat exchanger functions as a condenser according to the air conditioning request is a case where the temperature of the heat transport medium is lower than a threshold value,
The control device acquires the temperature of the heat transport medium, and when the temperature of the heat transport medium is lower than the threshold value, controls the supply amount of the feeder so that the temperature of the heat transport medium does not exceed the threshold value. The vehicle cooling device according to claim 1 .

An electromagnetic valve (329) for adjusting the flow rate of the heat transport medium is provided in the cooling flow path (304) through which the heat transport medium flows,
The case where the outdoor heat exchanger functions as a condenser according to the air conditioning request is a case where the temperature of the heat transport medium is lower than a threshold value,
The control device acquires the temperature of the heat transport medium, and when the temperature of the heat transport medium is lower than the threshold value, controls the flow rate of the electromagnetic valve so that the temperature of the heat transport medium does not exceed the threshold value. Item 2. The vehicle cooling device according to Item 1 .

In the cooling flow path (304) through which the heat transport medium flows, a bypass flow path (330) that bypasses the radiator (310) and a solenoid valve for adjusting the flow rate of the heat transport medium flowing through the bypass flow path. (331) and are provided,
The case where the outdoor heat exchanger functions as a condenser according to the air conditioning request is a case where the temperature of the heat transport medium is lower than a threshold value,
The control device acquires the temperature of the heat transport medium, and when the temperature of the heat transport medium is lower than a threshold value, opens the electromagnetic valve to flow the heat transport medium to the bypass passage rather than the radiator. By executing a warm-up mode to increase the temperature of the heat transport medium by increasing the temperature of the heat transport medium exceeds a threshold value, the electromagnetic valve is closed to flow to the radiator from the bypass passage. the vehicle cooling device according to claim 1 to perform the cooling mode to lower the temperature of the heat transport medium by increasing the flow rate of the heat transport medium.