CN202770084U - Welding resistance type capillary - Google Patents
Welding resistance type capillary Download PDFInfo
- Publication number
- CN202770084U CN202770084U CN 201220446597 CN201220446597U CN202770084U CN 202770084 U CN202770084 U CN 202770084U CN 201220446597 CN201220446597 CN 201220446597 CN 201220446597 U CN201220446597 U CN 201220446597U CN 202770084 U CN202770084 U CN 202770084U
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- CN
- China
- Prior art keywords
- wall thickness
- capillary
- thickening layer
- type capillary
- resistance type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an anti-welding type capillary which comprises a body, and a thickening layer is arranged on the outer surface of the port portion of the body. Preferably, the difference delta of the wall thickness of the thickening layer and the wall thickness of the body is equal to and greater than 0.2 millimeter and equal to and less than millimeter. Preferably, the difference delta of the wall thickness of the thickening layer and the wall thickness of the body is 0.4 millimeter. The anti-welding type capillary has the advantage that a port is not easy to burn out when a capillary is welded.
Description
Technical field
The present invention relates to the air supply rate technical field, especially relate to a kind of capillary of anti-the solder type.
Background technology
Capillary is the vitals of air-conditioner throttling step-down.This capillary can adopt diameter to be no more than the copper pipe preparation of 6mm, also can be the other materials preparation.Their common feature is wall thin (generally being no more than 0.9mm), when carrying out connection capillaceous or capillary being connected to the miscellaneous part of air-conditioning, how to be undertaken by the modes of welding.Like this, because capillary is thin and wall is thin, thereby in the process of welding, be easy to cause port capillaceous to be burned, thereby at the cost that has increased air-conditioning aspect material cost and the cost of labor two.Therefore be necessary to be improved.
Summary of the invention
Deficiency for above-mentioned prior art exists the purpose of this invention is to provide a kind of capillary of anti-the solder type, and it has capillary in the process of welding, the characteristics that port is difficult for being burned.
To achieve these goals, the technical solution adopted in the present invention is: the capillary of anti-the solder type, comprise body, and the outer surface of described body end oral area is provided with thickening layer.
The difference δ of the wall thickness of described thickening layer and the wall thickness of body is: 0.2mm≤δ≤1mm.
The difference δ of the wall thickness of described thickening layer and the wall thickness of body is: δ=0.4mm.
After adopting said structure, the present invention is compared with existing technology the advantage that has and is: capillary is in the process of welding, and port is difficult for being burned.The outer surface of anti-solder type of the present invention port part capillaceous has carried out thickening processing, and like this, in the process of welding, port part is difficult for being burned, thereby can not cause waste of material capillaceous and artificial Rewelding, and then can not increase the cost of air-conditioning.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is that the master of embodiments of the invention looks half sectional view.
Among the figure: 10, body, 11, thickening layer.
The specific embodiment
The following stated only is preferred embodiment of the present invention, does not therefore limit protection scope of the present invention.
Embodiment, as shown in Figure 1: the capillary of anti-the solder type, comprise body 10, an end port part of body 10 or the outer surface of two ends port part are to external upset (EU), thus formation thickening layer 11.That is, the wall thickness of port part is greater than the wall thickness of body 10, and still, it is identical that the internal diameter of the internal diameter of port part and body 10 keeps.Like this, the port part of thickening is easy burn-out not in the process of welding, thereby can not increase the cost of air-conditioning.
Optimize, the difference δ of the wall thickness of the wall thickness of thickening layer 11 and body 10 is: 0.2mm≤δ≤1mm.Optimum, the difference δ of the wall thickness of the wall thickness of thickening layer 11 and body 10 is: δ=0.4mm.Such port part wall thickness is at preparation cost and do not obtained preferably balance between the easy burn-out, and economy is better.
Claims (3)
1. the capillary of anti-the solder type comprises body (10), it is characterized in that: the outer surface of described body (10) port part is provided with thickening layer (11).
2. the capillary of anti-solder type the according to claim 1 is characterized in that: the difference δ of the wall thickness of the wall thickness of described thickening layer (11) and body (10) is: 0.2mm≤δ≤1mm.
3. the capillary of anti-solder type the according to claim 2 is characterized in that: the difference δ of the wall thickness of the wall thickness of described thickening layer (11) and body (10) is: δ=0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446597 CN202770084U (en) | 2012-09-04 | 2012-09-04 | Welding resistance type capillary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220446597 CN202770084U (en) | 2012-09-04 | 2012-09-04 | Welding resistance type capillary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202770084U true CN202770084U (en) | 2013-03-06 |
Family
ID=47776650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220446597 Expired - Fee Related CN202770084U (en) | 2012-09-04 | 2012-09-04 | Welding resistance type capillary |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202770084U (en) |
-
2012
- 2012-09-04 CN CN 201220446597 patent/CN202770084U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20130904 |