Heat exchanger

Patent metadata

Field	Value
Publication number	US-11480348-B2
Application number	US-201716341783-A
Country	US
Kind code	B2
Filing date	Oct 10, 2017
Priority date	Oct 13, 2016
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

A heat exchanger includes: a main body; and a tube sheet that is bonded to the main body with a brazing material and is used to fix the main body to a support by a fixing member. The tube sheet includes: a bonding surface to which the brazing material is applied; a rising portion that rises from the bonding surface; and a through-hole through which the fixing member is passed. The through-hole is opened at the rising portion, penetrates the tube sheet, and has an inner peripheral surface to which the brazing material is not applied. The main body includes heat transfer tubes through which refrigerant flows, and the tube sheet is bonded to surface of the heat transfer tube.

First claim

The invention claimed is:

1. A heat exchanger comprising:
a main body that comprises heat transfer tubes through which refrigerant flows; and
a tube sheet that is bonded to the main body by brazing the tube sheet to surfaces of the heat transfer tubes with a brazing material and that fixes the main body to a support by a fastener, wherein
the tube sheet comprises:
a bonding surface to which the brazing material is applied;
a bent portion that demarcates the bonding surface into a first bonding area and a second bonding area, wherein
the second bonding area has an integrally formed rising portion that rises from the second bonding area; and

a through-hole through which the fastener is passed,

the through-hole is opened at the rising portion, penetrates the tube sheet, and has an inner peripheral surface to which the brazing material is not applied,
the tube sheet is bonded at the first bonding area to the main body, and
the rising portion is disposed only on a first side of the second bonding area of the tube sheet.

2. The heat exchanger according to claim 1 , wherein the brazing material is formed as a layer of that brazes aluminum.

3. The heat exchanger according to claim 1 , wherein the tube sheet is bonded to the main body by furnace brazing.

4. An outdoor unit of a refrigeration apparatus, comprising:
the heat exchanger according to claim 1 ;
a compressor; and
a support to which the heat exchanger and the compressor are fixed, wherein
the support is at least one of a casing and a partition plate,
the casing stores the heat exchanger and the compressor, and
the partition plate partitions an inner space of the casing into a heat exchanger chamber in which the heat exchanger is disposed, and a machine chamber in which the compressor is disposed.

5. The heat exchanger according to claim 1 , wherein an end of the rising portion extends toward the second bonding area.

Assignees

• Daikin Ind Ltd

Inventors

• Nakano Hiroyuki
• Sasai Yasuhiro
• Kubo Hiroharu

Classifications

• B23K1/19

  taking account of the properties of the materials to be soldered · CPC title

• F28F9/002

  with fastening means for other structures · CPC title

• F24F1/16 Primary

  Arrangement or mounting thereof · CPC title

• F24F1/10

  Arrangement or mounting thereof · CPC title

• F28F2260/02

  having microchannels · CPC title