Title:
AIR CONDITIONING DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2021139534
Kind Code:
A
Abstract:
To suppress hammer sound in switching operation modes.SOLUTION: An air conditioning device for a vehicle includes: opening/closing sections 14a and 14b for opening and closing an air-conditioning refrigerant flow channel from a branch portion to an evaporation portion for air-conditioning, and opening and closing a cooling refrigerant flow channel from the branch portion to a pressure reduction portion for air-conditioning; and a control section 50 for controlling an operation of the opening/closing sections so as to open the air-conditioning refrigerant flow channel when cooling of air-conditioning air is requested, close the air-conditioning refrigerant flow channel when the cooling of the air-conditioning air is not requested, open the cooling refrigerant flow channel when the cooling of a cooled object is requested, and close the cooling refrigerant flow channel when the cooling of the cooled object is not requested. The control section degrades a refrigerant discharge capacity of a compressor when the cooling of the air-conditioning air is not requested from a state in which the cooling of the air-conditioning air is requested, and the cooling of the cooled object is requested, and closes the air-conditioning refrigerant flow channel by the opening/closing sections after predetermined conditions are satisfied.SELECTED DRAWING: Figure 29
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Inventors:
MATSUSHIMA MOEKA
ISSHI YOSHINORI
ISSHI YOSHINORI
Application Number:
JP2020036352A
Publication Date:
September 16, 2021
Filing Date:
March 04, 2020
Export Citation:
Assignee:
DENSO CORP
International Classes:
F25B5/02; B60H1/22; B60H1/32; H01M10/613; H01M10/625; H01M10/647; H01M10/6556; H01M10/6563
Domestic Patent References:
| JP2003279180A | 2003-10-02 | |||
| JP2004001674A | 2004-01-08 |
Attorney, Agent or Firm:
Patent Business Corporation Kaisei Patent Office