CN202979464U - Gold finger lead structure - Google Patents
Gold finger lead structure Download PDFInfo
- Publication number
- CN202979464U CN202979464U CN 201220567834 CN201220567834U CN202979464U CN 202979464 U CN202979464 U CN 202979464U CN 201220567834 CN201220567834 CN 201220567834 CN 201220567834 U CN201220567834 U CN 201220567834U CN 202979464 U CN202979464 U CN 202979464U
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- gold finger
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- model
- lead structure
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Abstract
The utility model provides a gold finger lead structure. A gold finger comprises a plurality of gold finger units, each gold finger unit has a lead part, and the lead part has a central area and an edge area which is formed by extending outwards from the central area, the central area is of a trapezoidal structure, and the edge area is of a rectangular structure. Thus, the gold finger lead structure can improve the quality of manufacturing of the gold finger, and the problem that metal filings are generated in the manufacturing process of the gold finger is prevented.
Description
Technical field
The utility model relates to the connected structure technical field, relates in particular to a kind of gold finger lead structure.
Background technology
Golden finger (Gold finger, or edge connector) is as a kind of structure for being electrically connected electronic installation, and it is used for the grafting of connector and can be used as the external connection outlet of circuit board.The golden finger structure of existing memory bar as shown in Figure 1, golden finger comprises some golden fingers unit 10, each golden finger unit 10 corresponding leading parts 20 that connect, the shape of this leading part 20 mostly is greatly the rectangle of rule.This shape and structure of leading part 20 makes and can produce a certain amount of kish bits in PCB (Printed Circuit Board, printed circuit board (PCB)) forming process, affects the quality of product.
In summary, existing gold finger lead structure obviously exists inconvenience and defective in actual use, so be necessary to be improved.
The utility model content
For above-mentioned defective, the purpose of this utility model is to provide a kind of gold finger lead structure, and it can avoid the problem of the generation metal fillings in production process.
To achieve these goals, the utility model provides a kind of gold finger lead structure, and described golden finger comprises some golden fingers unit, and each described golden finger unit has a leading part, and described leading part has:
The center; And
The marginal zone that stretches out and form by described center;
Described center is trapezium structure, and described marginal zone is rectangular configuration.
According to gold finger lead structure of the present utility model, described center is ladder structure of right angle, and the angle of the hypotenuse of described right-angled trapezium and horizontal line formation is 45 °～60 °.
According to gold finger lead structure of the present utility model, the horizontal width of the coupling part of described center and golden finger unit is 0.25mm～0.3mm, and the horizontal width of the coupling part of described center and marginal zone is 0.1mm.
According to gold finger lead structure of the present utility model, the upright projection length of described center hypotenuse is 0.2mm.
The utility model is by changing the structure of gold finger lead, and each corresponding leading part that connects in golden finger unit, this leading part are comprised of trapezoidal center and the marginal zone that extended to form by this center.Be more preferably, the center is preferably ladder structure of right angle, and the angle of the hypotenuse of this right-angled trapezium and horizontal line formation is 45 °～60 °.Whereby, the utility model can effectively be avoided the problem that in the PCB production process, between golden finger, kish is considered to be worth doing.
Description of drawings
Fig. 1 is the structural representation of the golden finger of prior art;
Fig. 2 is the golden finger structure schematic diagram of the utility model one embodiment;
Fig. 3 is the leading part backsight structural representation of the golden finger of the utility model one embodiment;
Fig. 4 is the leading part molding structure schematic diagram of the utility model golden finger.
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.
Referring to Fig. 2, the utility model provides a kind of pin configuration of golden finger, and golden finger 10 comprises some golden fingers unit 11, all is arranged at printed circuit board (PCB) 100.Each golden finger unit 11 has a leading part 20, is used for being electrically connected to other device.
Again in conjunction with the structure of leading part shown in Figure 3 20, this leading part 20 has the center 21 that is connected with golden finger unit 11, and the preferred at right angles trapezium structure in this center 21.The end of center 21 stretches out and forms the marginal zone 22 of leading part 20, and this marginal zone 22 is preferably rectangular configuration.
In concrete application of the present utility model, the angle that the hypotenuse of center 21 right-angled trapezium and horizontal line form is 45 °～60 °, and this center 21 is 0.25mm～0.3mm with the horizontal width (AB limit) of the coupling part of golden finger unit 11, and preferably adopts 0.25mm.Center 21 is 0.1mm with the horizontal width (DE) of the coupling part of marginal zone 22, and the upright projection (EF) of the hypotenuse of center 21 (CD limit) is preferably 0.2mm.
Show by great many of experiments, in conjunction with Fig. 4, by the trapezoidal design of above-mentioned leading part 20 to golden finger unit 11, in printed circuit board (PCB) 100 forming processes gong cutter 30 go out the edge of a knife at 45 ° with the lead-in wire limit～during the angle of 60 °, do not have any metal fillings residue problem and occur.
In sum, the utility model is by changing the structure of gold finger lead, and each corresponding leading part that connects in golden finger unit, this leading part are comprised of trapezoidal center and the marginal zone that extended to form by this center.Be more preferably, the center is preferably ladder structure of right angle, and the angle of the hypotenuse of this right-angled trapezium and horizontal line formation is 45 °～60 °.Whereby, the utility model can effectively be avoided the problem that in the PCB production process, between golden finger, kish is considered to be worth doing.
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (4)
1. a gold finger lead structure, is characterized in that, described golden finger comprises some golden fingers unit, and each described golden finger unit has a leading part, and described leading part has:
The center; And
The marginal zone that stretches out and form by described center;
Described center is trapezium structure, and described marginal zone is rectangular configuration.
2. gold finger lead structure according to claim 1, is characterized in that, described center is ladder structure of right angle, and the angle of the hypotenuse of described right-angled trapezium and horizontal line formation is 45 °～60 °.
3. gold finger lead structure according to claim 2, is characterized in that, the horizontal width of the coupling part of described center and golden finger unit is 0.25mm～0.3mm, and the horizontal width of the coupling part of described center and marginal zone is 0.1mm.
4. gold finger lead structure according to claim 2, is characterized in that, the upright projection length of described center hypotenuse is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567834 CN202979464U (en) | 2012-10-31 | 2012-10-31 | Gold finger lead structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567834 CN202979464U (en) | 2012-10-31 | 2012-10-31 | Gold finger lead structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202979464U true CN202979464U (en) | 2013-06-05 |
Family
ID=48520478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220567834 Expired - Lifetime CN202979464U (en) | 2012-10-31 | 2012-10-31 | Gold finger lead structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202979464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188261A (en) * | 2015-09-28 | 2015-12-23 | 江门崇达电路技术有限公司 | Method for preventing golden finger lead on printed circuit board (PCB) from generating burrs and tilting |
-
2012
- 2012-10-31 CN CN 201220567834 patent/CN202979464U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188261A (en) * | 2015-09-28 | 2015-12-23 | 江门崇达电路技术有限公司 | Method for preventing golden finger lead on printed circuit board (PCB) from generating burrs and tilting |
| CN105188261B (en) * | 2015-09-28 | 2018-09-04 | 江门崇达电路技术有限公司 | A method of prevent gold finger lead on PCB from burr and tilting occur |
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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: 20130605 |
|
| CX01 | Expiry of patent term |