CN201436547U - Disconnecting prevention fin for heat exchanger - Google Patents
Disconnecting prevention fin for heat exchanger Download PDFInfo
- Publication number
- CN201436547U CN201436547U CN2009200693813U CN200920069381U CN201436547U CN 201436547 U CN201436547 U CN 201436547U CN 2009200693813 U CN2009200693813 U CN 2009200693813U CN 200920069381 U CN200920069381 U CN 200920069381U CN 201436547 U CN201436547 U CN 201436547U
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- Prior art keywords
- fin
- heat exchanger
- flat tube
- arc
- lifting
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- Expired - Fee Related
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Abstract
The utility model provides a disconnecting prevention fin for a heat exchanger, which can effective prevent fin disconnecting in soldering process and is characterized in that lifting edge is arranged at a circular arc connection part of the two side surfaces of the fin and a flat tube, and the lifting arc of the lifting edge is inosculated with the bending arc of the outer diameter of the flat tube. Compared with a shutter fin with a flat-top structure in the prior art, the utility model has the advantages that raw material cost and complicated degree of process are not increased, because the lifting arc of the lifting edge arranged on the two side surfaces of the fin is inosculated with the outer diameter of the flat tube, when a core body of the heat exchanger enters a brazing furnace for welding, the lifting edge tightly hooks the flat tube, the disconnection problem of the fin of the heat exchanger in soldering process is effectively solved, the connection of the fin and the flat tube is firm, the product qualified rate is high, and the production cost is low.
Description
Technical field
The utility model belongs to the heat exchanger technical field, relates to a kind of heat exchanger thermofin, particularly a kind of come off fin structure of core body of fin in the brazing process that prevents.
Background technology
Conventional domestic and business air conditioner system are the mechanical expanding formula heat exchangers (being commonly called as the pipe type heat exchanger) that adopts round copper pipe and aluminium foil to be combined into, this conventional heat exchanger has that equipment cost is low, the advantage of easy production, but this kind heat exchanger exists shortcomings such as heat exchange efficiency is low, consumable material is many.Along with the growing interest of countries in the world to energy crisis, environmental problem, caused efficient, the energy-saving and environmental protectionization of global air-conditioning industry, as the critical component of air-conditioning system heat-shift, the conventional tube plate heat exchanger can not satisfy this trend.
The full aluminium soldering channel heat-exchanging that declines is a kind of high-performance heat exchanger that adopts full aluminum to make, and it conducts heat by many flat tubes that contain the microchannel and the fin that has shutter, significantly improves heat exchange efficiency.Micro channel heat exchanger has been widely used in car air-conditioner for many years, and the car air-conditioner heat exchanger is little because of size, and fin is short, and in advancing the soldering oven brazing process, fin breaks away from flat tube, and to produce the phenomenon of sheet less, adopts the straight top of tradition fin still can.But in family expenses and business air conditioner field, heat exchanger size is all bigger, and fin is long, in advancing slice weldering process, because thermal expansion, stress and gravity effect, jumps or falls to breaking away from the phenomenon that flat tube produces sheet on the fin and increase, and percent defective increases greatly.And the business air conditioner heat exchanger size is big, and consumptive material is many, and falling the high disqualification rate that sheet causes will greatly increase the cost of product.
Fin falls sheet in the brazing process in order to reduce, and improves the qualification rate of product, must seek a kind of fin that can effectively prevent and fall the heat exchanger slip-off preventing fin of sheet in brazing process.
The utility model content
The purpose of this utility model provides a kind of heat exchanger slip-off preventing fin, can prevent that effectively fin comes off in the brazing process.
For achieving the above object, adopt following technical scheme: heat exchanger slip-off preventing fin is characterized in that: fin is being equipped with alice with contacted upper and lower two the side circular arc connecting portions of flat tube.
The crooked arc of the warpage arc of described alice and described flat tube outside matches.
With respect to existing straight top fin, good effect of the present utility model is: neither increase the cost of raw material, do not increase the complexity of production technology yet, owing to be equipped with the alice that the outside circular arc of warpage arc and described flat tube matches on two sides of fin, entering when the heat exchanger that assembles in the process of soldering oven welding, alice tightly " hooks " flat tube, the fin that efficiently solves heat exchanger " falls sheet " in brazing process problem, fin contacts with flat tube firmly, product percent of pass height after the soldering.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model structural representation;
Fig. 2 is that the A of Fig. 1 is to view.
The specific embodiment
The utility model structure as depicted in figs. 1 and 2, heat exchanger slip-off preventing fin is characterized in that: upper and lower two sides that fin 2 is connected with flat tube 1 are equipped with alice 3 with the circular arc portion that is connected of described flat tube 1.
The arc of the warpage arc of described alice 3 and described flat tube outside matches.
Present embodiment adopts the technology of rolling extrusion molding, on upper and lower two sides of fin 2, directly rolls out four alices 3 that warpage arc and described flat tube 1 arc section match by the fin hobboing cutter.By manual or automatic heat exchanger core assembly machine; make the alice 3 of fin 2 tightly embrace the arc section of flat tube 1; realize the fixing of fin 2 and flat tube 1 by the brazing jig clamping; after entering soldering oven; can't produce between fin 2 and the flat tube 1 and relatively move; after the soldering of nitrogen-protective soldering technology, make heat exchanger.
By above-mentioned analysis as can be known, with respect to existing straight top fin technology, the utility model neither increases the cost of raw material, do not increase the complexity of production yet, solved fin 2 " falling sheet " problem in brazing process of heat exchanger effectively, improve product percent of pass greatly, controlled cost.
Claims (2)
1. heat exchanger slip-off preventing fin is characterized in that: upper and lower two sides that fin (2) is connected with flat tube (1) are equipped with alice (3) with the circular arc connecting portion of described flat tube (1).
2. according to the described heat exchanger of claim 1 slip-off preventing fin, it is characterized in that: the outer arcuate of the warpage arc of described alice (3) and described flat tube (1) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200693813U CN201436547U (en) | 2009-03-25 | 2009-03-25 | Disconnecting prevention fin for heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200693813U CN201436547U (en) | 2009-03-25 | 2009-03-25 | Disconnecting prevention fin for heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436547U true CN201436547U (en) | 2010-04-07 |
Family
ID=42372999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200693813U Expired - Fee Related CN201436547U (en) | 2009-03-25 | 2009-03-25 | Disconnecting prevention fin for heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007251A (en) * | 2017-11-30 | 2018-05-08 | 博耐尔汽车电气系统有限公司 | A kind of automobile air conditioner parallel flow condenser fin |
-
2009
- 2009-03-25 CN CN2009200693813U patent/CN201436547U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007251A (en) * | 2017-11-30 | 2018-05-08 | 博耐尔汽车电气系统有限公司 | A kind of automobile air conditioner parallel flow condenser fin |
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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: 20100407 Termination date: 20130325 |