CN201523481U - Aluminum radiating fin - Google Patents
Aluminum radiating fin Download PDFInfo
- Publication number
- CN201523481U CN201523481U CN2009202462796U CN200920246279U CN201523481U CN 201523481 U CN201523481 U CN 201523481U CN 2009202462796 U CN2009202462796 U CN 2009202462796U CN 200920246279 U CN200920246279 U CN 200920246279U CN 201523481 U CN201523481 U CN 201523481U
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- CN
- China
- Prior art keywords
- aluminium fin
- fixing feet
- pcb board
- aluminium
- radiating fin
- 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 - Lifetime
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Abstract
The utility model discloses an aluminum radiating fin which is provided with a fixed pin molded by one step; the outer surface of the fixed pin is plated with a weldable material; and the fixed pin connects the aluminum radiating fin onto a PCB by the weldable material through a soldering mode, thus being capable of solving the technical difficulty that the traditional aluminum radiating fin can not be welded. In addition, the aluminum radiating fin is plated with nickel after one-step molding, has simple and convenient processing and low cost; the PCB penal is firmly fixed with the radiating fin, thus having no influence on radiating effect due to loosing. Furthermore, the aluminum radiating fin can effectively increase the board-distributing space of the PCB and does not influence the wire-distributing design of the PCB.
Description
Technical field
The utility model relates to electric field, particularly a kind of aluminium fin.
Background technology
On Switching Power Supply and large power, electrically product-derived, the aluminium fin is good owing to radiating effect, and processing mode is simple, the application that has obtained batch with low cost.But because aluminium can't weld with pcb board, the fixed form of fin is mostly adopted the mode of riveted joint copper sheet, in conjunction with referring to Fig. 1, Fig. 2, Fig. 3, the schematic diagram of at present common aluminium fin riveted joint copper sheet is shown, wherein 101 for being riveted on the copper sheet on the fin.High-power relatively series of products, higher to the positioning accuracy request of fin, corresponding, also can propose higher requirement for machining accuracy, the positioning accuracy of the copper sheet of aluminium fin riveted joint, thereby cause the high problem of processing cost.And because copper sheet is riveted on the aluminium fin, thereby the copper sheet that also usually can occur riveting gets loose, crooked phenomenon, causes fixing not firm, the problem that can't fix of fin, influences radiating effect.In addition, being connected of the copper sheet of riveted joint and pcb board adopts the pad fixed form to carry out, and therefore, can take the cloth board space of pcb board, and the design of wiring board is caused difficulty.
The utility model content
The utility model provides a kind of aluminium fin, to solve the technological problems that traditional aluminium fin can't weld.
The utility model provides a kind of aluminium fin, and the aluminium fin has one-time formed fixing feet, and described fixing feet outer surface is coated with and can welds material; Described fixing feet is connected to the aluminium fin on the pcb board by the scolding tin welding manner by the described material of welding.
Preferably, the described material of welding is a nickel.
Preferably, be coated with at the whole or local outer surface of described fixing feet and can weld material.
Preferably, be plated in the welded material thickness of described fixing feet outer surface between 20 microns and 30 microns.
Preferably, described aluminium fin is straight chip architecture, and inward at both ends is the L type.
Preferably, be plated in the welded material skin of described fixing feet outer surface, also be coated with anti-oxidant, heat-resisting conductive material, to be applicable to big current applications.
Preferably, described anti-oxidant, heat-resisting conductive material is a gold.
Preferably, described aluminium fin can directly be welded on described fixing feet on the routing network of pcb board, or is fixedly welded on the pcb board by pad.
Preferably, the routing network of described pcb board comprises: the ground wire of pcb board or function pin.
Preferably, described aluminium fin adopts the impact style one-shot forming.
As seen, the aluminium fin that the utility model provides, compared with prior art, its beneficial effect is at least:
In the utility model, the aluminium fin has one-time formed fixing feet, be coated with at this fixing feet outer surface and can weld material, this fixing feet can be connected to the aluminium fin on the pcb board by the scolding tin welding manner by welding material, can solve the technology difficult problem that traditional aluminium fin can't weld.
And the aluminium fin can adopt the impact style one-shot forming, and the back nickel plating that is shaped is not only processed simple and convenient; And, because aluminium fin and fixing feet are to adopt the one-shot forming manufacturing, need not aluminium fin, copper sheet machining accuracy, positioning accuracy etc. are had higher requirements, thereby the traditional relatively aluminium fin of the utility model is with low cost as tradition riveted joint copper sheet; Also have, because fixing feet and aluminium fin are one-shot formings, so fixing very firm between fixing feet and the fin, can be owing to the loosening radiating effect that influences.
Further, the utility model aluminium fin not only can be fixedly welded on fixing feet on the pcb board by pad, and is convenient and reliable; Fixing feet directly can also be welded on the routing network of pcb board, on the ground wire such as pcb board, or on the function pin, can effectively increase the cloth board space of PCB circuit board, not influence the wires design of PCB wiring board.
Further,, significantly reduced the weight (because the proportion of aluminium is also very little) of aluminium fin, can satisfy the occasion that has weight to require, had impact, vibrate the occasion advantage that requirement is arranged owing to need not to rivet copper sheet.
Further, because the utility model is plated in the welded material skin of described fixing feet outer surface, also be coated with anti-oxidant, heat-resisting conductive material, such as gold, has oxidation resistance preferably, and heat resistance is also better, so this kind special process can be applicable to big current applications, uses such as can be used as bus-bar.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the aluminium fin front view of riveted joint copper sheet;
Fig. 2 is the aluminium fin end view of riveted joint copper sheet;
Fig. 3 is the aluminium fin vertical view of riveted joint copper sheet;
A kind of aluminium fin front view that Fig. 4 provides for the utility model embodiment;
A kind of aluminium fin end view that Fig. 5 provides for the utility model embodiment;
A kind of aluminium fin vertical view that Fig. 6 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model execution mode is described in further detail below in conjunction with accompanying drawing.
Embodiment one
In conjunction with referring to Fig. 4, Fig. 5 and Fig. 6, the utility model embodiment provides a kind of aluminium fin:
Wherein, the aluminium fin has one-time formed fixing feet 201, and described fixing feet 201 outer surfaces are coated with and can weld material; Described fixing feet 201 is connected to the aluminium fin on the pcb board by the scolding tin welding manner by the described material of welding.202 is louvre among the figure.
Aluminium fin among the utility model embodiment can be fine aluminium or aluminum alloy material.
Preferably, the described material of welding is a nickel, also can be that other can weld material in the practical application.
Preferably, be coated with at the whole or local outer surface of described fixing feet 201 and can weld material.
Preferably, the utility model embodiment can adopt advanced technology, and the thickness that makes the welded material that is plated in described fixing feet 201 outer surfaces is between 20 microns and 30 microns.
Preferably, described aluminium fin is straight chip architecture, and inward at both ends is L type (specifically can referring to Fig. 6).Can on the basis that does not reduce radiating effect, effectively reduce the length of fin like this.
Preferably, be plated in the welded material skin of described fixing feet outer surface, also be coated with anti-oxidant, heat-resisting conductive material, to be applicable to big current applications.Preferably, described anti-oxidant, heat-resisting conductive material is a gold.
Preferably, described aluminium fin can directly be welded on described fixing feet on the routing network of pcb board, or is fixedly welded on the pcb board by pad.The routing network of pcb board is such as the ground wire that can be pcb board, or the function pin.
Preferably, described aluminium fin adopts the impact style one-shot forming.
As seen, the aluminium fin that the utility model embodiment provides, compared with prior art, its beneficial effect is at least:
Among the utility model embodiment, the aluminium fin has one-time formed fixing feet, be coated with at this fixing feet outer surface and can weld material, this fixing feet can be connected to the aluminium fin on the pcb board by the scolding tin welding manner by welding material, can solve the technology difficult problem that traditional aluminium fin can't weld.
And the aluminium fin can adopt the impact style one-shot forming, and the back nickel plating that is shaped is not only processed simple and convenient; And, because aluminium fin and fixing feet are to adopt the one-shot forming manufacturing, need not aluminium fin, copper sheet machining accuracy, positioning accuracy etc. are had higher requirements, thereby the traditional relatively aluminium fin of the utility model is with low cost as tradition riveted joint copper sheet; Also have, because fixing feet and aluminium fin are one-shot formings, so fixing very firm between fixing feet and the fin, can be owing to the loosening radiating effect that influences.
Further, the utility model aluminium fin not only can be fixedly welded on fixing feet on the pcb board by pad, and is convenient and reliable; Fixing feet directly can also be welded on the routing network of pcb board, on the ground wire such as pcb board, or on the function pin, can effectively increase the cloth board space of PCB circuit board, not influence the wires design of PCB wiring board.
Further,, significantly reduced the weight (because the proportion of aluminium is also very little) of aluminium fin, can satisfy the occasion that has weight to require, had impact, vibrate the occasion advantage that requirement is arranged owing to need not to rivet copper sheet.
Further, because the utility model is plated in the welded material skin of described fixing feet outer surface, also be coated with anti-oxidant, heat-resisting conductive material, such as gold, has oxidation resistance preferably, and heat resistance is also better, so this kind special process can be applicable to big current applications, uses such as can be used as bus-bar.
Need to prove, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of waterproof cover nonexcludability, thereby make and comprise that the article of a series of key elements or equipment not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within the article that comprise described key element or the equipment and also have other identical element.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all be included in the protection range of the present utility model.
Claims (10)
1. an aluminium fin is characterized in that, the aluminium fin has one-time formed fixing feet, and described fixing feet outer surface is coated with and can welds material; Described fixing feet is connected to the aluminium fin on the pcb board by the scolding tin welding manner by the described material of welding.
2. aluminium fin according to claim 1 is characterized in that, the described material of welding is a nickel.
3. aluminium fin according to claim 1 is characterized in that, is coated with at the whole or local outer surface of described fixing feet and can welds material.
4. aluminium fin according to claim 1 is characterized in that, the welded material thickness that is plated in described fixing feet outer surface is between 20 microns and 30 microns.
5. aluminium fin according to claim 1 is characterized in that, described aluminium fin is straight chip architecture, and inward at both ends is the L type.
6. aluminium fin according to claim 1 is characterized in that, is plated in the welded material skin of described fixing feet outer surface, also is coated with anti-oxidant, heat-resisting conductive material, to be applicable to big current applications.
7. aluminium fin according to claim 6 is characterized in that, described anti-oxidant, heat-resisting conductive material is a gold.
8. aluminium fin according to claim 1 is characterized in that, described aluminium fin can directly be welded on described fixing feet on the routing network of pcb board, or is fixedly welded on the pcb board by pad.
9. aluminium fin according to claim 8 is characterized in that, the routing network of described pcb board comprises: the ground wire of pcb board or function pin.
10. aluminium fin according to claim 1 is characterized in that, described aluminium fin adopts the impact style one-shot forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202462796U CN201523481U (en) | 2009-10-26 | 2009-10-26 | Aluminum radiating fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202462796U CN201523481U (en) | 2009-10-26 | 2009-10-26 | Aluminum radiating fin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201523481U true CN201523481U (en) | 2010-07-07 |
Family
ID=42509657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202462796U Expired - Lifetime CN201523481U (en) | 2009-10-26 | 2009-10-26 | Aluminum radiating fin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201523481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697317A (en) * | 2013-12-17 | 2014-04-02 | 中山名创力电子有限公司 | Electronic welding part made of poor welding materials |
-
2009
- 2009-10-26 CN CN2009202462796U patent/CN201523481U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697317A (en) * | 2013-12-17 | 2014-04-02 | 中山名创力电子有限公司 | Electronic welding part made of poor welding materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
| CX01 | Expiry of patent term |