Heat exchanger

Patent metadata

Field	Value
Publication number	US-12130100-B2
Application number	US-202017763671-A
Country	US
Kind code	B2
Filing date	Sep 27, 2020
Priority date	Sep 27, 2019
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

A heat exchanger, including: a plurality of flat pipes, wherein, the plurality of flat pipes are arranged at intervals; first sealing cushion blocks, arranged between two adjacent flat pipes, wherein the first sealing cushion blocks are located on end portions of the flat pipes, so as to seal gaps between two adjacent flat pipes by means of the first sealing cushion blocks; and a flow collecting shell, provided with a first opening portion, wherein at least part of the first sealing cushion blocks and the end portions of the flat pipes are all plugged into the first opening portion, so that the flow collecting shell, the flat pipes and the first sealing cushion blocks form a flow collecting channel in an encircling manner.

First claim

What is claimed is:

1. A heat exchanger, comprising:
a plurality of flat pipes, wherein the plurality of flat pipes are arranged at intervals;
first sealing cushion blocks, arranged between two adjacent flat pipes, wherein the first sealing cushion blocks are located on end portions of each flat pipe in the two adjacent flat pipes, so as to seal gaps between two adjacent flat pipes by the first sealing cushion blocks; and
a flow collecting shell, provided with a first opening portion, wherein at least part of the first sealing cushion blocks and end portions of the flat pipes are all inserted into the first opening portion, so that the flow collecting shell, the flat pipes and the first sealing cushion blocks are welded to form a flow collecting channel in an encircling manner;
wherein the first opening portion is arranged in a communication manner in an extending direction of the first opening portion, and the first sealing cushion blocks and the flat pipes are alternately arranged and stacked in the extending direction of the first opening, a composite layer is disposed on the surface of the flat pipe, after the composite layer is melted, two pipe plates of the flat pipe are kept pressed and fit, when the heat exchanger is welded, the flat pipe is freely declined in the extending direction of the first opening portion under a pre-tightening action;
wherein the flow collecting shell comprises a main body portion and a plug-in portion, wherein the plug-in portion is arranged on the main body portion, the plug-in portion is arranged at an end portion of the main body portion, the plug-in portion is provided with the first opening portion, and at least part of the first sealing cushion block and an end portion of the each flat pipe are plugged into the plug-in portion;
wherein the plug-in portion comprises a first plug board and a second plug board, the first plug board and the second plug board are oppositely arranged on both ends of the main body portion, and the first plug board and the second plug board are arranged at intervals to form the first opening portion, so that at least part of the first sealing cushion block and the end portion of each flat pipe are all plugged between the first plug board and the second plug board;
wherein the first sealing cushion block comprises a first main body block and a first plug-in block, the first plug-in block is arranged on the first main body block, the first main body block is arranged at the end portion of the flat pipe, and the first plug-in block is plugged into the first opening portion;
the first sealing cushion block is a T-shaped block, the first plug-in block is plugged into the first opening portion, the first main body block is located outside the first opening portion.

2. The heat exchanger as claimed in claim 1 , wherein the first plug-in block has a first side surface, a second side surface and an arc-shaped concave surface, the first side surface, the arc-shaped concave surface and the second side surface are connected in sequence, the arc-shaped concave surface is located on a side of the first plug-in block away from the first main body block, the first side surface is plugged at the first plug board, and the second side surface is plugged at the second plug board.

3. The heat exchanger as claimed in claim 1 , wherein each first sealing cushion block is provided with a first positioning structure, a second positioning structure cooperating with the first positioning structure is arranged on a corresponding flat pipe in the two adjacent flat pipes, and the first positioning structure opposites to the second positioning structure, so as to position the first sealing cushion block by the first positioning structure and the second positioning structure.

4. The heat exchanger as claimed in claim 3 , wherein the first positioning structure is a first positioning protrusion, the second positioning structure is a first positioning groove, the first positioning protrusion is arranged opposite to the first positioning groove, and the first positioning protrusion is arranged in the first positioning groove, so as to position the first sealing cushion block.

5. The heat exchanger as claimed in claim 1 , wherein each first sealing cushion block has a first binding surface and a second binding surface, which are arranged opposite to each other, an end portion of each flat pipe has a first surface and a second surface, which are arranged opposite to each other, the first binding surface is cooperated with the first surface of the end portion of the each flat pipe, and the second binding surface is cooperated with the second surface of the end portion of the each flat pipe, so that the first binding surface is configured to fit the first surface, and the second binding surface is configured to fit the second surface.

6. The heat exchanger as claimed in claim 1 , wherein the flow collecting shell is provided with a second opening portion and a third opening portion opposite to the second opening portion, the second opening portion is located on an end of the flow collecting shell, the third opening portion is located on the other end of the flow collecting shell, and the first opening portion, the second opening portion and the third opening portion all communicate with each other; and the heat exchanger further comprises sealing covers, and the sealing covers are arranged at both the second opening portion and the third opening portion, so as to seal the second opening portion and the third opening portion by the sealing covers.

7. The heat exchanger as claimed in claim 6 , wherein the heat exchanger further comprises a second sealing cushion block, wherein the second sealing cushion block is arranged between a sealing cover in the sealing covers and a corresponding flat pipe, and a third positioning structure is arranged on a side of the second sealing cushion block adjacent to the sealing cover, so as to position the sealing cover by the third positioning structure.

8. The heat exchanger as claimed in claim 7 , wherein the second sealing cushion block comprises a second main body block and a second plug-in block, wherein the second plug-in block is arranged on the second main body block, the second main body block protrudes from the second plug-in block, so as to form a positioning step in an encircling manner, and the positioning step forms the third positioning structure, so as to position the sealing cover by the positioning step.

9. The heat exchanger as claimed in claim 7 , wherein a fourth positioning structure is further arranged on the flat pipe, a fifth positioning structure cooperated with the fourth positioning structure is arranged on the second sealing cushion block, and the fourth positioning structure is arranged opposite to the fifth positioning structure, so as to position the second sealing cushion block by the fourth positioning structure and the fifth positioning structure.

10. The heat exchanger as claimed in claim 9 , wherein the fourth positioning structure is a second positioning protrusion, the fifth positioning structure is a second positioning groove, the second positioning protrusion is opposite to the second positioning groove, and the second positioning protrusion is arranged in the second positioning groove, so as to position the second sealing cushion block.

11. The heat exchanger as claimed in claim 1 , wherein an end portion of each flat pipe is provided with an arc-shaped port, and the arc-shaped port is plugged into the first opening portion, so that the flow collecting channel communicates with a fluid channel in the flat pipe.

12. The heat exchanger as claimed in claim 1 , wherein the flow collecting shell,

Assignees

• Zhejiang Dunan Artificial Env Co Ltd

Inventors

• Wei Wenjian
• Ma Wenyong
• Xiao Qing
• Wang Guanjun
• Fan Yi

Classifications

• F28F9/0219

  Arrangements for sealing end plates into casing or header box; Header box sub-elements (F28F9/0236 takes precedence) · CPC title

• F28D1/0308

  the conduits being formed by paired plates touching each other (F28D1/0358 takes precedence) · CPC title

• F28F9/14

  by force-joining · CPC title

• F28F9/262

  for radiators (F28D1/0408 takes precedence) · CPC title

• F28F9/013

  for tubes or tube-assemblies · CPC title