Vehicular refrigeration cycle unit and vehicular air conditioning device

Patent metadata

Field	Value
Publication number	US-2025018771-A1
Application number	US-202118706142-A
Country	US
Kind code	A1
Filing date	Nov 4, 2021
Priority date	Nov 4, 2021
Publication date	Jan 16, 2025
Grant date	—

Abstract

Provided is a vehicular refrigeration cycle unit interposed between a vehicle-exterior heat exchanger and a vehicle-interior heat exchanger and that exchanges heat between secondary refrigerants flowing through the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger, respectively, the vehicular refrigeration cycle unit being provided with a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows, and the distance between the compressor and the evaporator is longer than the distance between the compressor and the condenser.

First claim

1 . A vehicular refrigeration cycle unit interposed between a vehicle-exterior heat exchanger and a vehicle-interior heat exchanger and being configured to exchange heat between respective secondary refrigerants flowing through the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger, the vehicular refrigeration cycle unit comprising:
a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows; a distance between the compressor and the evaporator being longer than a distance between the compressor and the condenser.

2 . A vehicular refrigeration cycle unit interposed between a vehicle-exterior heat exchanger and a vehicle-interior heat exchanger and configured to exchange heat between respective secondary refrigerants flowing through the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger, the vehicular refrigeration cycle unit comprising:
a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows; a distance between a discharge port for the primary refrigerant at the compressor and the evaporator being longer than a distance between the discharge port and the condenser.

3 . A vehicular refrigeration cycle unit interposed between a vehicle-exterior heat exchanger and a vehicle-interior heat exchanger and configured to exchange heat between respective secondary refrigerants flowing through the vehicle-exterior heat exchanger and the vehicle-interior heat exchanger, the vehicular refrigeration cycle unit comprising:
a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator through which a primary refrigerant sequentially flows; a length of a pipe connecting the compressor and the evaporator being longer than a length of a pipe connecting the compressor and the condenser.

4 . The vehicular refrigeration cycle unit according to claim 1 , wherein the condenser is disposed between the compressor and the evaporator.

5 . The vehicular refrigeration cycle unit according to claim 1 , further comprising a partition wall portion separating the condenser and the evaporator from each other between the condenser and the evaporator.

6 . The vehicular refrigeration cycle unit according to claim 5 , wherein the partition wall portion includes a partition wall plate being a plate member.

7 . The vehicular refrigeration cycle unit according to claim 5 , wherein the partition wall portion includes an accommodation body configured to accommodate only the compressor and the condenser out of the compressor, the condenser, and the evaporator.

8 . A vehicular air conditioning device comprising:
the vehicular refrigeration cycle unit according to claim 1 ; the vehicle-exterior heat exchanger; and the vehicle-interior heat exchanger.

9 . The vehicular refrigeration cycle unit according to claim 2 , wherein the condenser is disposed between the compressor and the evaporator.

10 . The vehicular refrigeration cycle unit according to claim 2 , further comprising a partition wall portion separating the condenser and the evaporator from each other between the condenser and the evaporator.

11 . The vehicular refrigeration cycle unit according to claim 10 , wherein the partition wall portion includes a partition wall plate being a plate member.

12 . The vehicular refrigeration cycle unit according to claim 10 , wherein the partition wall portion includes an accommodation body configured to accommodate only the compressor and the condenser out of the compressor, the condenser, and the evaporator.

13 . A vehicular air conditioning device comprising:
the vehicular refrigeration cycle unit according to claim 2 ; the vehicle-exterior heat exchanger; and the vehicle-interior heat exchanger.

14 . The vehicular refrigeration cycle unit according to claim 3 , wherein the condenser is disposed between the compressor and the evaporator.

15 . The vehicular refrigeration cycle unit according to claim 3 , further comprising a partition wall portion separating the condenser and the evaporator from each other between the condenser and the evaporator.

16 . The vehicular refrigeration cycle unit according to claim 15 , wherein the partition wall portion includes a partition wall plate being a plate member.

17 . The vehicular refrigeration cycle unit according to claim 15 , wherein the partition wall portion includes an accommodation body configured to accommodate only the compressor and the condenser out of the compressor, the condenser, and the evaporator.

18 . A vehicular air conditioning device comprising:
the vehicular refrigeration cycle unit according to claim 3 ; the vehicle-exterior heat exchanger; and the vehicle-interior heat exchanger.

Assignees

• Mitsubishi Heavy Ind Thermal Systems Ltd

Inventors

• Morishita Masatoshi
• Kobayashi Takayuki
• Nakagawa Nobuya
• Saito Katsuhiro
• Noyama Hideto
• Tanabe Hirotaka
• Hirata Hirofumi
• Hamamoto Shinya

Classifications

• B60H1/3223

  characterised by the arrangement or type of the compressor (B60H1/3222 takes precedence) · CPC title

• B60H1/3228

  characterised by refrigerant circuit configurations · CPC title

• B60H1/32

  Cooling devices {(B60H1/00478, B60H1/005 take precedence)} · CPC title

• B60H1/00

  Heating, cooling or ventilating devices · CPC title

• B60H1/3227 Primary

  characterised by the arrangement or the type of heat exchanger, e.g. condenser, evaporator (condensed liquid drainage means B60H1/3233) · CPC title