CN202799393U - FPC (flexible printed circuit) golden finger - Google Patents
FPC (flexible printed circuit) golden finger Download PDFInfo
- Publication number
- CN202799393U CN202799393U CN 201220463488 CN201220463488U CN202799393U CN 202799393 U CN202799393 U CN 202799393U CN 201220463488 CN201220463488 CN 201220463488 CN 201220463488 U CN201220463488 U CN 201220463488U CN 202799393 U CN202799393 U CN 202799393U
- Authority
- CN
- China
- Prior art keywords
- golden finger
- fpc
- fpc golden
- hole
- sheet
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 15
- 230000000875 corresponding Effects 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 abstract description 11
- 238000007906 compression Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 239000006071 cream Substances 0.000 description 5
- 229910000679 solder Inorganic materials 0.000 description 5
- 230000001070 adhesive Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001680 brushing Effects 0.000 description 1
- 230000000994 depressed Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Abstract
The utility model is applicable to the field of electronic products, and provides an FPC (flexible printed circuit) golden finger which comprises a plurality of FPC golden finger pieces, wherein the FPC golden finger pieces are correspondingly welded with circuit board golden finger pieces positioned below the FPC golden finger pieces. A through hole is arranged in the middle of each FPC golden finger piece. As the through holes are arranged on the golden finger pieces and the cross sections of the through holes are polygonal, overflowing tin paste can flow into the through holes in thermal compression welding, short circuit due to the fact that the tin paste overflows to the outside of a golden finger piece area is avoided, welding quality is improved, producing and machining difficulty is greatly reduced, and maintenance cost can be reduced.
Description
Technical field
The utility model belongs to the electronic product field, relates in particular to a kind of improved FPC golden finger.
Background technology
In the processing procedure of flexible circuit board (FPC) golden finger sheet and circuit board golden finger sheet heat pressure adhesive, the bad situation of welding quality appears easily, one of its reason is that solder(ing) paste has been brushed many can be squeezed out golden finger sheet zone in addition, the solder(ing) paste that overflows can cause the golden finger short circuit, and that solder(ing) paste brush has lacked the conduction that can make solder joint is good not.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of tin cream that prevents to overflow the outer FPC golden finger of FPC golden finger panel region.
The utility model is achieved in that a kind of FPC golden finger, comprise a plurality of for the FPC golden finger sheet of the corresponding welding of circuit board golden finger sheet that is positioned at its below, the middle part of described FPC golden finger sheet offers through hole.
Particularly, the width of described through hole is 1/3 of described FPC golden finger sheet width.
Particularly, the length of described through hole is 1/3 of described FPC golden finger leaf length.
Particularly, the little 1mm-2mm of circuit board golden finger leaf length of the corresponding welding with it of Length Ratio of described FPC golden finger sheet.
More specifically, the end of described FPC golden finger sheet has deep-slotted chip breaker.
The FPC golden finger that the utility model provides, by opening the hole at FPC golden finger sheet middle part, so that the tin cream that heat pressure adhesive when welding overflows can flow into this through hole, avoid it to overflow FPC golden finger sheet and cause short circuit outward, guaranteed welding quality, and the production and processing difficulty also declines to a great extent, and also reduced simultaneously the maintenance and repair cost.
Description of drawings
Fig. 1 is the structure chart of the FPC golden finger that provides of the utility model embodiment;
Fig. 2 is the side-looking structural representation of the FPC golden finger that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As depicted in figs. 1 and 2, the FPC golden finger that provides for the utility model embodiment, comprise a plurality of for the wiring board 2 that is positioned at its below on the FPC golden finger sheet 11 of golden finger sheet 21 corresponding welding, middle part at FPC golden finger sheet 11 offers through hole 111, and the cross section of described through hole 111 is that other is polygon-shaped for rectangle etc.In the present embodiment, the cross section of described through hole 111 is rectangular; Described wiring board 2 is pcb board.
The FPC golden finger that the utility model provides, be positioned in the middle of the FPC golden finger sheet through hole 111 can so that a little tin cream that overflows during golden finger sheet 21 heat pressure adhesive on FPC golden finger sheet 11 and the wiring board 2 rely on liquid tension force and flow into through hole 111, thereby avoid its zone of overflowing the golden finger sheet outer and cause short circuit, also need not worry because being afraid of that tin cream overflows the very few bad problem of conduction that causes of tin of brushing, it has guaranteed welding quality, the production and processing difficulty is also declined to a great extent, can also reduce the maintenance and repair cost simultaneously.
In the present embodiment, the width of described through hole 111 is 1/3 of FPC golden finger sheet 11 width, and the length of through hole 111 is 1/3 of FPC golden finger sheet 11 length, makes like this it can guarantee certain weld strength, can leave again enough spaces and hold the scolding tin that overflows.
The little 1mm-2mm of golden finger 21 length on the wiring board 2 of the corresponding welding with it of Length Ratio of described FPC golden finger sheet like this can be so that FPC golden finger sheet 11 be fitted closelyr with the golden finger 21 on the wiring board 2, thereby guarantees good welding effect.
The end of FPC golden finger sheet 11 has deep-slotted chip breaker 112, because arc is easier to flowing of fluid, so this deep-slotted chip breaker can be so that the welding between FPC 1 and the wiring board 2 be more firm.
The specific works process of the utility model embodiment is: before heat pressure adhesive, can print an amount of tin cream above the golden finger sheet 21 on the wiring board 2; Then wiring board 2 is fixed on by tool on the table top of hot press, again FPC is fitted in wiring board 2 upper surfaces (as shown in Figure 2) by tool, and FPC golden finger sheet 11 is aimed at golden finger sheet 21 on the wiring board 2; Next after the suitable time is depressed and stopped to the thermal head of hot press, the melts soldering tin above the golden finger sheet 21 on the wiring board 2, thermal head is removed again, and solder cools is solidified, and wiring board 2 just can weld together securely with FPC 1.In the specific implementation, the thermal head of hot press also can be done hollow out and process at the hollow out position of the FPC of correspondence golden finger sheet 11, the size of its hollow out is than size each long 1mm on the length and width direction of the through hole 111 of FPC golden finger sheet 11 hollow outs, the scolding tin that can avoid melting like this adheres to above the thermal head, thereby guarantees good welding effect.
What deserves to be explained is that wiring board 2 both can be pcb board in the present embodiment, can certainly be the FPC plate, and was unquestionable at this.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace or improvement etc., all should be included within the protection range of the present utility model.
Claims (6)
1. FPC golden finger, comprise a plurality of for the FPC golden finger sheet of the corresponding welding of circuit board golden finger sheet that is positioned at its below, it is characterized in that: the middle part of described FPC golden finger sheet offers through hole, and the cross section of described through hole is polygon-shaped.
2. FPC golden finger as claimed in claim 1, it is characterized in that: the cross section of described through hole is rectangular.
3. FPC golden finger as claimed in claim 2, it is characterized in that: the width of described through hole is 1/3 of described FPC golden finger sheet width.
4. FPC golden finger as claimed in claim 2, it is characterized in that: the length of described through hole is 1/3 of described FPC golden finger leaf length.
5. FPC golden finger as claimed in claim 1 is characterized in that: the little 1mm-2mm of circuit board golden finger leaf length of the corresponding welding with it of Length Ratio of described FPC golden finger sheet.
6. such as each described FPC golden finger of claim 1-5, it is characterized in that: the end of described FPC golden finger sheet has deep-slotted chip breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220463488 CN202799393U (en) | 2012-09-12 | 2012-09-12 | FPC (flexible printed circuit) golden finger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220463488 CN202799393U (en) | 2012-09-12 | 2012-09-12 | FPC (flexible printed circuit) golden finger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202799393U true CN202799393U (en) | 2013-03-13 |
Family
ID=47826557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220463488 Expired - Fee Related CN202799393U (en) | 2012-09-12 | 2012-09-12 | FPC (flexible printed circuit) golden finger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202799393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430667A (en) * | 2019-07-17 | 2019-11-08 | 武汉华星光电技术有限公司 | A kind of display panel flexible circuit board, its component and its welding method |
| CN112247307A (en) * | 2020-10-09 | 2021-01-22 | 昆山联滔电子有限公司 | Hot-press welding device and hot-press welding process |
-
2012
- 2012-09-12 CN CN 201220463488 patent/CN202799393U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110430667A (en) * | 2019-07-17 | 2019-11-08 | 武汉华星光电技术有限公司 | A kind of display panel flexible circuit board, its component and its welding method |
| CN112247307A (en) * | 2020-10-09 | 2021-01-22 | 昆山联滔电子有限公司 | Hot-press welding device and hot-press welding process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |