Title:
VEHICLE AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2020/250764
Kind Code:
A1
Abstract:
This vehicle air conditioner (1) includes a refrigeration cycle (10), a low-temperature-side heat medium circuit (40), a device-side heat medium circuit (50) and a control unit (70). The low-temperature-side heat medium circuit (40) has an air/heat medium heat exchanger (21) and causes a heat medium to circulate so as to be cooled by heat being absorbed by a low-pressure coolant in a heat absorber (15). The device-side heat medium circuit (50) has a heat-generating device (51), a bypass passage (54) and a switching unit (53) and causes a heat medium to circulate such that the heat medium exchanges heat with the heat-generating device (51). During a return operation, before restoring the heat exchange performance of the air/heat medium heat exchanger (21) in relation to outside air (OA) and the heat medium that has passed through the heat absorber (15), the control unit (70) controls the operation of the switching unit (53) such that the heat medium that has passed through the heat-generating device (51) circulates through the device-side heat medium circuit (50) via the heat-generating device (51) and the bypass passage (54).
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Inventors:
TANIOKA KUNIYOSHI (JP)
MAKIHARA MASAMICHI (JP)
KATOH YOSHIKI (JP)
MAEDA TAKAHIRO (JP)
KAWANO HIROAKI (JP)
MAKIHARA MASAMICHI (JP)
KATOH YOSHIKI (JP)
MAEDA TAKAHIRO (JP)
KAWANO HIROAKI (JP)
Application Number:
PCT/JP2020/021884
Publication Date:
December 17, 2020
Filing Date:
June 03, 2020
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60H1/08; B60H1/22; B60H1/32
Foreign References:
| JP2019026111A | 2019-02-21 | |||
| JP2017081530A | 2017-05-18 | |||
| JP2012017056A | 2012-01-26 |
Attorney, Agent or Firm:
KAI-SEI PATENT FIRM (JP)
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