Heat exchange tube and heat exchanger having the same

Patent metadata

Field	Value
Publication number	US-11512907-B2
Application number	US-202017090416-A
Country	US
Kind code	B2
Filing date	Nov 5, 2020
Priority date	Nov 5, 2019
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A heat exchange tube and a heat exchanger are provided. A tube wall of the heat exchange tube includes a first wall and a second wall, a first segment of the first wall includes one of a first groove or a first protrusion, a second segment of the first wall includes one of a second groove or a second protrusion, a first segment of the second wall includes the other one of the first groove or the first protrusion, the first protrusion is arranged in the first groove, the second segment of the second wall includes the other one of the second groove or the second protrusion, and the second protrusion is arranged in the second groove. At least part of each of the first segment and the second segment of the first wall is arranged between the first segment and the second segment of the second wall.

First claim

What is claimed is:

1. A heat exchange tube, comprising a first side surface, a second side surface, a third side surface and a fourth side surface, the first side surface and the second side surface being arranged opposite to each other in a first direction, the third side surface and the fourth side surface being arranged opposite to each other in a second direction, a distance between the first side surface and the second side surface being less than a distance between the third side surface and the fourth side surface, the heat exchange tube comprising a plurality of channels and a tube wall, the tube wall comprising:
a first wall folded from a same sheet and comprising a first segment of the first wall, a first bent part, a first intermediate segment, a first connecting segment, a second intermediate segment, a second bent part and a second segment of the first wall, the first segment of the first wall being connected to the first intermediate segment through the first bent part, the second segment of the first wall being connected to the second intermediate segment through the second bent part, the first intermediate segment being spaced apart from the second intermediate segment in the first direction, the first intermediate segment having two side surfaces opposite to each other in the first direction, the first side surface of the heat exchange tube comprising one of the two side surfaces of the first intermediate segment away from the second intermediate segment, the second intermediate segment has two side surfaces opposite to each other in the first direction, the second side surface of the heat exchange tube comprising one of the two side surfaces of the second intermediate segment away from the first intermediate segment, the first segment of the first wall being spaced apart from the first connecting segment in the second direction, the second segment of the first wall being spaced apart from the first connecting segment in the second direction, the first segment of the first wall comprising one of a first groove or a first protrusion, the second segment of the first wall comprising one of a second groove or a second protrusion; and
a second wall folded from another same sheet and comprising a first segment of the second wall, a second connecting segment and a second segment of the second wall, the second connecting segment being spaced apart from the first connecting segment in the second direction, the first segment of the second wall being spaced apart from the second segment of the second wall in the first direction, the first segment of the second wall comprising the other one of the first groove or the first protrusion, at least part of the first protrusion being arranged in the first groove, the first segment of the first wall being connected to the first segment of the second wall, the second segment of the second wall comprising the other one of the second groove or the second protrusion, at least part of the second protrusion being arranged in the second groove, and the second segment of the first wall being connected to the second segment of the second wall,
wherein at least part of the first segment of the first wall is arranged between the first segment of the second wall and the second segment of the second wall in the first direction, and at least part of the second segment of the first wall is arranged between the first segment of the second wall and the second segment of the second wall in the first direction.

2. The heat exchange tube according to claim 1 , wherein the first segment of the first wall comprises the first groove, the second segment of the first wall comprises the second groove, the first segment of the second wall comprises the first protrusion, at least part of the first protrusion of the first segment of the second wall is arranged in the first groove of the first segment of the first wall, the first protrusion of the first segment of the second wall is connected to the first segment of the first wall, the second segment of the second wall comprises the second protrusion, at least part of the second protrusion of the second segment of the second wall is arranged in the second groove of the second segment of the first wall, the second protrusion of the second segment of the second wall is connected to the second segment of the first wall, a part of the first segment of the first wall is arranged between the first protrusion of the first segment of the second wall and the second protrusion of the second segment of the second wall in the first direction, and a part of the second segment of the first wall is arranged between the first protrusion of the first segment of the second wall and the second protrusion of the second segment of the second wall in the first direction.

3. The heat exchange tube according to claim 2 , wherein the first protrusion of the first segment of the second wall comprises a first portion and a second portion, the first portion of the first protrusion is connected to an end of the second connecting segment and extends generally in a direction toward the second segment of the second wall, the second portion of the first protrusion is connected to an end of the first portion of the first protrusion away from the second connecting segment and extends generally along the second direction,
the second protrusion of the second segment of the second wall comprises a third portion and a fourth portion, the third portion of the second protrusion is connected to another end of the second connecting segment and extends in a direction toward the first segment of the second wall, the fourth portion of the second protrusion is connected to an end of the third portion of the second protrusion away from the second connecting segment and extends generally along the second direction,
a part of the first segment of the first wall and a part of the second segment of the first wall are arranged between the second portion of the first protrusion of the first segment of the second wall and the fourth portion of the second protrusion of the second segment of the second wall in the first direction.

4. The heat exchange tube according to claim 2 , wherein the first segment of the second wall comprises a third connecting segment connected to the first intermediate segment, the second segment of the second wall comprises a fourth connecting segment connected to the second intermediate segment, the second connecting segment is connected to the third connecting segment and the fourth connecting segment, the first protrusion is arranged to one of two opposite side surfaces of the third connecting segment adjacent to the fourth connecting segment in the first direction, and the second protrusion is arranged to one of two opposite side surfaces of the fourth connecting segment adjacent to the third connecting segment in the first direction.

5. The heat exchange tube according to claim 4 , wherein the third connecting segment is generally flush with the first intermediate segment in the second direction, the fourth connecting segment is generally flush with the second intermediate segment in the second direction, the first side surface of the heat exchange tube further comprises the other one of the two opposite side surfaces of the third connecting segment away from the fourth connecting segment in the first direction, and the second side surface of the heat exchange tube further comprises the other one of the two opposite side surfaces of the fourth connecting segment away from the third connecting segment in the first direction.

6. The heat exchange tube according to claim 4 , wherein the first segment of the first wall comprises a first sub-segment, a second sub-segment and a third sub-segment, the second sub-segment of the first segment of the first wall is connected to the fir

Assignees

• Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd

Inventors

• Tong Zhongyao

Classifications

• F28F1/022 Primary

  with multiple channels · CPC title

• F28F19/002

  by using inserts or attachments · CPC title

• F28F2260/02

  having microchannels · CPC title

• F28F2275/08

  by clamping or clipping · CPC title

• F28D1/0391 Primary

  a single plate being bent to form one or more conduits · CPC title