Heat exchanger and air conditioner

Patent metadata

Field	Value
Publication number	US-2020109902-A1
Application number	US-201816497662-A
Country	US
Kind code	A1
Filing date	Mar 27, 2018
Priority date	Mar 27, 2017
Publication date	Apr 9, 2020
Grant date	—

Abstract

A heat exchanger including: a header; flat tubes connected to the header and disposed in line along a longitudinal direction of the header; a first partition that partitions an inner space of the header into a first space on a side where the flat tubes are connected and a second space on a side opposite to the first space; and a second partition that partitions the inner space of the header into a first side and a second side. The first side is one side of the header in the longitudinal direction and the second side is opposite to the first side. The first partition has a common opening. The common opening includes an insertion opening and a refrigerant opening. A refrigerant moves between the first space and the second space via the refrigerant opening. The second partition is inserted into the insertion opening.

First claim

1 - 14 . (canceled)

15 . A heat exchanger comprising:
a header; flat tubes connected to the header and disposed in line along a longitudinal direction of the header; a first partition that partitions an inner space of the header into a first space on a side where the flat tubes are connected and a second space on a side opposite to the first space; and a second partition that partitions the inner space of the header into a first side and a second side, wherein the first side is one side of the header in the longitudinal direction and the second side is opposite to the first side, the first partition comprises a common opening, the common opening comprises an insertion opening and a refrigerant opening, a refrigerant moves between the first space and the second space via the refrigerant opening, and the second partition is inserted into the insertion opening.

16 . The heat exchanger according to claim 15 , wherein the common opening comprises an outline that conforms to a shape that positions the second partition across the longitudinal direction of the header.

17 . The heat exchanger according to claim 15 , wherein
the second partition comprises:
a first side member that partitions the inner space across the longitudinal direction into a first side relative to the first side member and a second side relative to the first side member and that is disposed on a first side of the refrigerant opening; and
a second side member that partitions the inner space across the longitudinal direction into a first side relative to the second side member and a second side relative to the second side member and that is disposed on a second side of the refrigerant opening,
the common opening further comprises, as the insertion opening, a first side insertion opening and a second side insertion opening, the first side member is disposed into the first side insertion opening, and the second side member is disposed into the second side insertion opening.

18 . The heat exchanger according to claim 17 , wherein
the flat tubes are not connected to a space, in the inner space of the header, surrounded by the first side member and the second side member, and the refrigerant opening is between the first side member and the second side member.

19 . The heat exchanger according to claim 17 , wherein the first side member comprises, in the first space or the second space, a nozzle that extends through the first side member in the longitudinal direction of the header.

20 . The heat exchanger according to claim 17 , further comprising:
a refrigerant pipe connected to the second space in a space, in the inner space of the header, surrounded by the first side member and the second side member, wherein the first side member comprises, in the first space, a nozzle that extends through the first side member in the longitudinal direction of the header.

21 . The heat exchanger according to claim 19 , wherein
the first partition comprises:
a first circulation opening through which the first space and the second space are connected on the first side relative to the first side member; and
a second circulation opening through which the first space and the second space are connected on a first side of the first circulation opening in the longitudinal direction of the header, and
the common opening further comprises the first circulation opening.

22 . The heat exchanger according to claim 19 , wherein
the first partition comprises:
a first circulation opening through which the first space and the second space are connected on the first side relative to the first side member; and
a second circulation opening through which the first space and the second space are connected on a first side of the first circulation opening in the longitudinal direction of the header,
structures each comprising a set of the first circulation opening, the second circulation opening, the refrigerant opening, the first side insertion opening, the second side insertion opening, the first side member, and the second side member are repeatedly juxtaposed in the longitudinal direction of the header, and the common opening comprises:
the refrigerant opening, the first side insertion opening, and the second side insertion opening of a first set; and
the second circulation opening of a second set disposed on a second side of the first set.

23 . The heat exchanger according to claim 19 , wherein
the first partition comprises:
a first circulation opening through which the first space and the second space are connected on the first side relative to the first side member; and
a second circulation opening through which the first space and the second space are connected on a first side of the first circulation opening in the longitudinal direction of the header,
structures each comprising a set of the first circulation opening, the second circulation opening, the refrigerant opening, the first side insertion opening, the second side insertion opening, the first side member, and the second side member are repeatedly juxtaposed in the longitudinal direction of the header, and the common opening comprises:
the refrigerant opening, the first side insertion opening, the second side insertion opening, and the first circulation opening of a first set; and
the second circulation opening of a second set positioned on a second side of the first set.

24 . The heat exchanger according to claim 21 , wherein an aperture area of the second circulation opening is larger than an aperture area of the first circulation opening.

25 . The heat exchanger according to claim 21 , wherein the nozzle is disposed at a position that does not overlap, when viewed in the longitudinal direction of the header, a virtual space defined by extending the first circulation opening in a direction the flat tubes extend.

26 . The heat exchanger according to claim 19 , wherein the nozzle is disposed 1 mm or more away from an inner circumferential face of the header and away from the first partitioning member.

27 . The heat exchanger according to claim 15 , wherein the longitudinal direction of the header lies in a vertical direction of the heat exchanger.

28 . An air conditioner comprising: the heat exchanger according to claim 15 .

Assignees

• Daikin Ind Ltd

Inventors

• Satou Ken
• Sakamaki Tomohiko
• Yamada Kouju
• Jindou Masanori
• Yamaguchi Tomoya
• Inoue Satoshi
• Yoshioka Shun
• Oritani Yoshio
• Matsuda Hiroaki

Classifications

• F28F9/0202

  Header boxes having their inner space divided by partitions · CPC title

• F24F1/18

  characterised by their shape · CPC title

• F28D1/047

  the conduits being bent, e.g. in a serpentine or zig-zag · CPC title

• F28F2215/12

  with U-shaped slots for laterally inserting conduits · CPC title

• F28F1/02

  Tubular elements of cross-section which is non-circular (F28F1/08, F28F1/10 take precedence) · CPC title