Title:
VEHICLE AIR-CONDITIONING DEVICE
Document Type and Number:
Japanese Patent JP2021133723
Kind Code:
A
Abstract:
To sufficiently cool a battery without complicating a system even when a coolant is used in common for air-conditioning a vehicle interior and for cooling the battery.SOLUTION: A coolant discharged from a compressor 60 is circulated through a heat exchanger 47 for heating, variable opening expansion valves 64 to 66 which can be fully opened and an external heat exchanger 30. The coolant having passed through the external heat exchanger 30 is then allowed to be circulated through an expansion valve 73 for cooling, a heat exchanger 45, an expansion valve 83 for cooling a battery 21 and a heat exchanger 81. A grille shutter 32 to change an introduction state of traveling winds is arranged in front of the external heat exchanger 30. When pressure of the coolant (that has passed through the external heat exchanger 30 in particular) is equal to or less than predetermined pressure, the grille shutter 32 is closed so as to reduce a heat exchange function of the external heat exchanger 30.SELECTED DRAWING: Figure 2
Inventors:
NAKAHARA YASUHIKO
TANAKA MASAAKI
SHIGEMORI DAIKI
NISHINO MASAKI
TANAKA MASAAKI
SHIGEMORI DAIKI
NISHINO MASAKI
Application Number:
JP2020029427A
Publication Date:
September 13, 2021
Filing Date:
February 25, 2020
Export Citation:
Assignee:
MAZDA MOTOR
International Classes:
B60H1/22; B60H1/32; F25B5/02; F25B49/02
Domestic Patent References:
| JP2018184108A | 2018-11-22 | |||
| JP2019155999A | 2019-09-19 | |||
| JP2015104974A | 2015-06-08 | |||
| JP2020019397A | 2020-02-06 | |||
| JP2021046059A | 2021-03-25 |
Attorney, Agent or Firm:
Minoru Murata
Yoshitaka Funase
Kiyotaka Totsuka
Yoshitaka Funase
Kiyotaka Totsuka