CN202118059U - Nested rivet for pre-location of multi-layer printed circuit board - Google Patents
Nested rivet for pre-location of multi-layer printed circuit board Download PDFInfo
- Publication number
- CN202118059U CN202118059U CN2011200378341U CN201120037834U CN202118059U CN 202118059 U CN202118059 U CN 202118059U CN 2011200378341 U CN2011200378341 U CN 2011200378341U CN 201120037834 U CN201120037834 U CN 201120037834U CN 202118059 U CN202118059 U CN 202118059U
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- China
- Prior art keywords
- nested
- rivet
- nesting type
- type rivet
- cylinder
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- 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 relates to a nested rivet used during lamination, location and riveting of the printed circuit board, which is composed of two layers of structures, wherein the structure on the outer layer is a thin rivet-shaped nest which is longer than the inner layer; the longer part has a riveting effect during riveting; the structure on the inner layer is a thick cylindrical nest with openings on two surfaces; the thick cylindrical nest is longer than the nest on the outer layer; the diameter of the outer wall of the inner cylindrical nest structure is close to the diameter of the inner wall of the cylinder of the outer rivet-shaped nest structure, so that the structures of the two layers can be closely inserted into each other. Compared with the traditional rivet, the rivet related to the utility model utilizes the cylindrical nest to enhance the intensity of the rivet; and the rive is not easy to be bent and deformed during riveting and location, so that higher yield can be achieved according to production of high-level printed circuit boards.
Description
Technical field
Multilayer printed wiring board need carry out preposition to many central layers before pressing, the printed wiring board after the completion preposition can be sent press to and carry out the pressing processing, thereby is bonded into the printed wiring board of a multilayer.So preposition is a very important treatment step before the printed wiring board pressing.Preposition can adopt heat fused, riveted, pin location, and the rivet location is a kind of very important orientation type.
Background technique
Traditional pressing rivet is to adopt copper product, and material itself is thinner, and rivet itself is yielding crooked and cause the location of printed wiring board deviation to occur in the riveted process, and this deviation can cause printed wiring board to scrap generation.In order to change this drawback, so proposed content of the present invention.
Summary of the invention
The technical problem that the present invention solves is: a kind of nesting type rivet that adopts nested reinforcement is provided, and through after the nested reinforcement, rivet just can not be out of shape during riveted, and the Location accuracy of riveted can improve greatly.The rivet of this nesting type is very helpful for the high high-end printed wiring board production of required precision.
Technological scheme of the present invention is: a kind of nesting type rivet is provided, and it is made up of inside and outside two mutually nested structures.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and it is made up of inside and outside two mutually nested structures: inner nested cylinder-like structure by a two sides opening constitutes; The nested of outside is a rivet-like structure, is made up of rivet cap and two parts of cylinder-like structure.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and its inner nested outer diameter is close with outside nested cylinder inner diameter partly.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and its outside nested cylinder length partly is longer than inner nested length.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and the material that all structures of this rivet adopt is metallic material.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and its inner nested length is close with the thickness of the object that needs riveted.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and the material thickness of the nested structure that it is inner (being the wall thickness of cylinder-like structure) is 0.05～0.5mm.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and the material thickness of the nested structure that it is inner (being the wall thickness of cylinder-like structure) is 0.5～2.0mm.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and its inner nested outer diameter is than the outside nested cylinder little 0～50um of inner diameter partly.
Further technological scheme of the present invention is: a kind of nesting type rivet is provided, and its outside nested cylinder length partly is than the long 0.5～2.0mm of inner nested length.
The effect that the present invention obtains is: under nested reinforing function, rivet is difficult for causing shaft of rivet distortion because of the strength of riveted and becomes crooked when riveted, and this can improve the aligning accuracy behind the riveted, thereby improves the production yield of printed wiring board.
Description of drawings
Fig. 1 is the schematic perspective view of " nesting type rivet ".
Fig. 2 is the side cross-sectional schematic of " nesting type rivet ".
Fig. 3 is the nested schematic perspective view of the inside of " nesting type rivet "
Fig. 4 is " nesting type rivet " side cross-sectional schematic behind the riveted printed wiring board
Embodiment
Below in conjunction with the practical implementation example, technological scheme of the present invention is further specified.
Embodiment of the present invention is: a kind of nesting type rivet is provided, and it is made up of inside and outside two mutually nested structures, and inner nested (shown in 2 among Fig. 1) is made up of the cylinder-like structure of a two sides opening; Outside nested (shown in 1 among Fig. 1) is a rivet-like structure, partly is made up of rivet cap (shown in 6 among Fig. 2) and two of cylinder-like structures (shown in 5 among Fig. 2).
The nested outer diameter of the inside of nesting type rivet (shown in 3 among Fig. 1) is close with outside nested cylinder inner diameter (shown in 4 among Fig. 1) partly; Inner nested outer diameter is than the outside nested cylinder little 0～50um of inner diameter partly, so just can be so that two parts are entrenched togather each other and are difficult for unclamped; The nested cylinder length partly of the outside of nesting type rivet is longer than inner nested length, and the length that grows can be at 0.5～2.0mm, and the part that grows plays the effect of riveting tightly when riveted; The material thickness of the nested structure of the inside of nesting type rivet (being the wall thickness of cylinder-like structure) is 0.05～2.0mm, and the material that is adopted is metallic material, the thicker of used material, and its intensity is just strong more, and rivet just is not easy distortion more when riveted; The nested length of the inside of nesting type rivet and object (this place finger mark system circuit board that needs riveted; Shown in 7 among Fig. 4) thickness be close; Generally, inner nested length needs shorter than the thickness of the object of required riveted, and this numerical value can be between 0～0.2mm; Inner like this can play good intensity reinforing function when being nested in riveted, can not cause the rivet distortion because of the active force of riveted.
Generally, the object of required riveted is thick more, and used rivet is also just long more, and long more rivet is easy deformation more just.So when the nested length of the inside of nesting type rivet was long more, the wall thickness of this nested material also need be selected for use thicker, could strengthen the intensity of rivet so better, makes the riveted Positioning Precision Control in desirable scope.
For more convenient understanding, provided the schematic perspective view of nested structure of the inside of side cross-sectional schematic shown in Figure 2 and nesting type rivet shown in Figure 3.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. a nesting type rivet is characterized in that, is made up of inside and outside two mutually nested structures.
2. a kind of nesting type rivet according to claim 1 is characterized in that, inner nested cylinder-like structure by a two sides opening constitutes; The nested of outside is a rivet-like structure, is made up of rivet cap and two parts of cylinder-like structure.
3. a kind of nesting type rivet according to claim 2 is characterized in that, inner nested outer diameter is close with outside nested cylinder inner diameter partly.
4. a kind of nesting type rivet according to claim 2 is characterized in that, outside nested cylinder length partly is longer than inner nested length.
5. a kind of nesting type rivet according to claim 1 is characterized in that, the material that all structures of rivet adopt is metallic material.
6. a kind of nesting type rivet according to claim 4 is characterized in that, inner nested length is close with the thickness of the object that needs riveted.
7. a kind of nesting type rivet according to claim 2 is characterized in that, the material thickness of inner nested structure is 0.05～0.5mm.
8. a kind of nesting type rivet according to claim 2 is characterized in that, the material thickness of inner nested structure is 0.5～2.0mm.
9. a kind of nesting type rivet according to claim 3 is characterized in that, inner nested outer diameter is than the outside nested cylinder little 0～50um of inner diameter partly.
10. a kind of nesting type rivet according to claim 4 is characterized in that, outside nested cylinder length partly is than the long 0.5～2.0mm of inner nested length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200378341U CN202118059U (en) | 2011-02-14 | 2011-02-14 | Nested rivet for pre-location of multi-layer printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200378341U CN202118059U (en) | 2011-02-14 | 2011-02-14 | Nested rivet for pre-location of multi-layer printed circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118059U true CN202118059U (en) | 2012-01-18 |
Family
ID=45459128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200378341U Expired - Fee Related CN202118059U (en) | 2011-02-14 | 2011-02-14 | Nested rivet for pre-location of multi-layer printed circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118059U (en) |
-
2011
- 2011-02-14 CN CN2011200378341U patent/CN202118059U/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 | ||
| DD01 | Delivery of document by public notice |
Addressee: Dai Fang Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Dai Fang Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140214 |