Vehicle air-conditioner

Patent metadata

Field	Value
Publication number	US-2016288618-A1
Application number	US-201414903291-A
Country	US
Kind code	A1
Filing date	Jun 19, 2014
Priority date	Jul 9, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

A vehicle air-conditioner has a casing, a first heat exchanger, and a second heat exchanger. The casing forms an air passage through which air flows toward inside of a vehicle cabin. The first heat exchanger is housed in the casing and performs a sensible heat exchange between the air flowing in the air passage and a heating medium. The second heat exchanger is housed in the casing and performs a sensible heat exchange between the heating medium and air that has exchanged sensible heat in the first heat exchanger. The first heat exchanger and the second heat exchanger respectively have a plurality of tubes through which the heating medium flows. A longitudinal direction of the plurality of tubes of the first heat exchanger and a longitudinal direction of the plurality of tubes of the second heat exchanger are the same direction as each other.

First claim

What is claimed is:

1 . A vehicle air-conditioner comprising:
a casing forming an air passage through which air flows toward inside of a vehicle cabin; a first heat exchanger that is housed in the casing and performs a sensible heat exchange between the air flowing in the air passage and a heating medium; and a second heat exchanger that is housed in the casing and performs a sensible heat exchange between the heating medium and air that has exchanged sensible heat in the first heat exchanger, wherein the first heat exchanger and the second heat exchanger respectively have a plurality of tubes through which the heating medium flows, and a longitudinal direction of the plurality of tubes of the first heat exchanger and a longitudinal direction of the plurality of tubes of the second heat exchanger are the same direction as each other.

2 . The vehicle air-conditioner according to claim 1 , wherein
the longitudinal direction of the plurality of tubes of the first heat exchanger and the second heat exchanger substantially corresponds to an up-down direction of a vehicle when viewed in a front-rear direction of the vehicle.

3 . The vehicle air-conditioner according to claim 1 , wherein
the longitudinal directions of the plurality of tubes of the first heat exchanger and the second heat exchanger are closer to an up-down direction of a vehicle than to a right-left direction of the vehicle.

4 . The vehicle air-conditioner according to claim 1 , wherein
the first heat exchanger is a cooling heat exchanger that cools the air, the second heat exchanger is a heating heat exchanger that heats the air, at least a part of the plurality of tubes included in the first heat exchanger forms a first path, at least a part of the plurality of tubes, which are included in the second heat exchanger and heat the air that has been cooled in the first path, forms a second path, and the heating medium flows in the same direction in the first path and the second path.

5 . The vehicle air-conditioner according to claim 1 , wherein
the casing includes, as the air passage, (i) an inside air passage through which inside air flows toward the inside of the vehicle cabin and (ii) an outside air passage through which outside air flows toward the inside of the vehicle cabin, the first heat exchanger and the second heat exchanger are arranged across both of the inside air passage and the outside air passage, and the longitudinal directions of the plurality of tubes of the first heat exchanger and the second heat exchanger correspond to an alignment direction of the inside air passage and the outside air passage.

6 . The vehicle air-conditioner according to claim 1 , wherein
the first heat exchanger performs the sensible heat exchange between the air flowing in the air passage and the heating medium flowing in the first heat exchanger.

7 . The vehicle air-conditioner according to claim 1 , wherein
the second heat exchanger performs the sensible heat between the air, which has exchanged sensible heat with the heating medium flowing in the first heat exchanger, and the heating medium flowing in the second heat exchanger.

Assignees

• Denso Corp

Inventors

• Katoh Yoshiki
• Kuwayama Kazutoshi
• Makihara Masamichi
• Enomoto Norihiko
• Sugimura Kengo

Classifications

• B60H1/00921 Primary

  where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct · CPC title

• F28D1/05383

  with multiple rows of conduits or with multi-channel conduits (F28D1/05391 takes precedence) · CPC title

• B60H1/00335

  of the gas-air type (B60H1/18 takes precedence) · CPC title

• B60H1/3205

  Control means therefor · CPC title