Filter, manufacturing method for filter and air conditioner

Patent metadata

Field	Value
Publication number	US-2023184458-A1
Application number	US-202318163875-A
Country	US
Kind code	A1
Filing date	Feb 3, 2023
Priority date	Jun 27, 2018
Publication date	Jun 15, 2023
Grant date	—

Abstract

A filter, a manufacturing method for a filter, and an air conditioner are provided. The filter includes a casing, a transition tube, and a filter screen assembly. The filter screen assembly is provided in the casing, fitted with and connected to an inner wall of the casing, the casing is an integrally formed piece, and two axial ends of the casing have neck sections, and two neck sections are both fixedly connected to the transition tube.

First claim

What is claimed is:

1 . A manufacturing method for a filter, wherein comprising:
providing a material free of spraying and integrally forming a casing from the material free of spraying at S 01 ; necking a fist axil end of the casing to form a neck section at S 02 ; providing a filter screen assembly, pressing the filter screen assembly in through a second axial end of the casing and enabling the filter screen assembly to be fitted with and connected to an inner wall of the casing at S 03 ; necking the second axial end of the casing to form another neck section at S 04 ; and connecting transition tubes to the neck sections at two axial ends of the casing respectively at S 05 .

2 . The manufacturing method according to claim 1 , wherein at S 03 , the filter screen assembly is fixed to an inner wall of the casing by welding.

3 . The manufacturing method according to claim 1 , wherein at S 03 , at least one annular groove sunken towards the inner wall of the casing is defined on an outer wall of the casing by punching, such that the inner wall of the casing protrudes to form an annular protrusion with the annular groove, and the filter screen assembly is connected to the annular protrusion by snapping, wherein at S 03 , one annular groove sunken towards the inner wall of the casing is defined on the outer wall of the casing by punching, such that the inner wall of the casing protrudes to form the annular protrusion with the annular groove, when the filter screen assembly is pressed into the casing, an end of the filter screen assembly is flush with the annular protrusion, another one annular groove sunken towards the inner wall of the casing is defined on the outer wall of the casing by punching, such that the inner wall of the casing protrudes to form another annular protrusion with the another annular groove, and the two annular protrusions hold the end of the filter screen assembly.

4 . The manufacturing method according to claim 1 , wherein at S 01 , material free of spraying is stainless steel or copper.

5 . The manufacturing method according to claim 1 , wherein at S 05 , the transition tube is fixed to the neck section by spot welding.

6 . An air conditioner, comprising:
a refrigerant tube; and a filter, comprising:
a casing;
a transition tube; and
a filter screen assembly provided in the casing, fitted with and connected to an inner wall of the casing, the casing being an integrally formed piece, two axial ends of the casing have neck sections, and two neck sections being fixedly connected to the transition tube, wherein the refrigerant tube being fixedly connected to the transition tube.

Assignees

• Gd Midea Heating & Ventilating Equipment Co Ltd
• Midea Group Co Ltd

Inventors

• Zhang Tiegang
• Xu Yongfeng
• Lao Tongbing
• Wu Yandong
• He Shiqiang
• Cui Chunlei

Classifications

• F24F13/28 Primary

  Arrangement or mounting of filters · CPC title

• F24F8/10

  by separation, e.g. by filtering · CPC title

• B01D2279/50

  for air conditioning · CPC title

• B23K2103/05

  Stainless steel · CPC title

• B01D46/2411

  Filter cartridges · CPC title