CN206542628U - A kind of anti-FPC fractureed - Google Patents
A kind of anti-FPC fractureed Download PDFInfo
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- CN206542628U CN206542628U CN201720245290.5U CN201720245290U CN206542628U CN 206542628 U CN206542628 U CN 206542628U CN 201720245290 U CN201720245290 U CN 201720245290U CN 206542628 U CN206542628 U CN 206542628U
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- golden finger
- fpc
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- fractureed
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Abstract
The utility model discloses a kind of anti-FPC fractureed.It includes solder side and non-solder face, solder side is provided with the first golden finger, non-solder face is provided with the second golden finger, the length of first golden finger and the length of the second golden finger are unequal, and PI windowing, non-solder face PI windowing second golden finger at of the solder side at the first golden finger is curve.The length of first golden finger and the length of the second golden finger are unequal, can effectively prevent FPC from being fractureed in welding；PI windowing, non-solder face PI windowing second golden finger at of the solder side at the first golden finger is disposed as curve, can prevent during welding and bending assembling FPC, cause FPC to be fractureed from PI windowings edge because being concentrated PI windowing edge stresses.The anti-FPC fractureed of the present utility model it is simple in construction, PI can be subtracted and opened a window the stress concentration at edge, prevent FPC from being fractureed from PI windowings edge.
Description
Technical field
The utility model is related to FPC technical field, more particularly to a kind of anti-FPC fractureed.
Background technology
Flexible print circuit board (Flexible Printed Circuit Board, FPC plate/FPCB), is to use polyamides
Imines (Polyimide, PI) film is base material, the wiring board sheet material being made together with copper foil pressing.With rigid printed substrate
(Printed Circuit Board, pcb board/PCB) compares, the advantages of FPC plates possess free bend, folding, winding.FPC plates
Oneself is through being widely used in the fields such as mobile communication product, laptop computer, consumer electronics product, space flight, Military Electronic Equipment.
One key property of FPC plates just can be achieved on circuit connection, and existing connected mode mainly has two kinds：It is a kind of
It is to be connected using connector, although connecting convenient using connector, it is installed, and required space is big, and grafting is unstable, make
With cost it is high the shortcomings of so that it is only used in the pcb board that some spaces are big, hardness is high.Common connection still makes
With the mode of welding, and FPC plates are welded, must just carry out PROCESS FOR TREATMENT to its golden finger, FPC golden fingers are will be double
Face PI opened a window only remain copper foil one piece of region, its ultra-thin thickness in addition copper ductility again be not fine, allow for
FPC golden finger end becomes abnormal fragility.
As depicted in figs. 1 and 2, FPC golden fingers PI windowings of the prior art are typically designed as linear pattern, but this linear pattern
Windowing design easily makes stress concentration in PI windowing linear edges, so as to cause golden finger in welding and bending assembling process
From PI straight lines windowing edge breaks so that electrical functionality fails.
Utility model content
The purpose of this utility model is a kind of anti-FPC fractureed of offer, and its is simple in construction, can subtract PI windowings
The stress concentration at edge, prevents FPC from being fractureed from PI windowings edge.
For up to this purpose, the utility model uses following technical scheme：
A kind of anti-FPC fractureed, including solder side and non-solder face, solder side is provided with the first golden finger, non-
Solder side is provided with the second golden finger, and the length of the first golden finger and the length of the second golden finger are unequal, and solder side is first
The PI windowings of PI windowings, non-solder face at the second golden finger at golden finger are curve.
By setting the length of the first golden finger and the unequal technological means of length of the second golden finger, i.e. FPC is positive and negative
The golden finger on two sides is handled using dislocation so that the connection position formation two of the first golden finger and the second golden finger and FPC
Individual cascaded surface, reduces the concentrated stress produced during FPC bendings, to reach the purpose for preventing that FPC from fractureing in welding；It is logical
Cross and PI windowing, non-solder face PI windowing second golden finger at of the solder side at the first golden finger is disposed as curve
Technological means, has reached during welding and bending assembling FPC, reduces the purpose that PI windowing edge stresses are concentrated, and then
Solve during welding and bending assembling FPC, cause the problem of FPC fractures from PI windowings edge.
Wherein, PI of the solder side at the first golden finger opens a window, PI windowing of the non-solder face at the second golden finger is
Wave, further to reduce the stress concentration at PI windowings edge, prevents FPC from being fractureed from PI windowings edge.
Wherein, length long 0.3~0.5mm of the length of the second golden finger than the first golden finger.For example, the second golden finger
Length long 0.3mm, 0.35mm, 0.4mm, 0.45mm, the 0.5mm of length than the first golden finger.Preferably, the length of the second golden finger
Spend the long 0.4mm of length than the first golden finger.That is the golden finger in non-solder face is longer than the golden finger of solder side so that non-during welding
The tin of solder side is more, so that welding is more firm, improves the reliability of welding.
Wherein, length long 0.3~0.5mm of the length of the first golden finger than the second golden finger.For example, the first golden finger
Length long 0.3mm, 0.35mm, 0.4mm, 0.45mm, the 0.5mm of length than the second golden finger.Preferably, the length of the first golden finger
Spend the long 0.4mm of length than the second golden finger.That is the golden finger of solder side is longer than the golden finger in non-solder face, can reduce welding
Difficulty of processing in process, the possibility that golden finger fractures when reducing welding, improves the welding yield of product.
Wherein, the first golden finger and the second golden finger are provided with through hole.The setting of through hole so that FPC is in welding, point
The scolding tin of weldering can be penetrated into through hole, and effectively tin is oozed to realize so that welding is more firm, improves the reliability of welding.
The beneficial effects of the utility model：By setting the length and the length of the second golden finger of the first golden finger unequal
Technological means, prevent FPC purposes for fractureing in welding to reach；By the way that PI of the solder side at the first golden finger is opened
The PI windowings of window, non-solder face at the second golden finger are disposed as the technological means of curve, have reached in welding and bending group
During filling FPC, reduce the purpose that PI windowing edge stresses are concentrated, and then solve in welding and bend assembling FPC mistake
Cheng Zhong, causes the problem of FPC fractures from PI windowings edge.The anti-FPC fractureed of the present utility model it is simple in construction,
The stress concentration at PI windowings edge can be subtracted, prevent FPC from being fractureed from PI windowings edge.
Brief description of the drawings
Fig. 1 is the structural representation of the FPC of prior art.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Fig. 3 is the structural representation of FPC of the present utility model.
Fig. 4 is the partial enlarged drawing at B in Fig. 3.
Fig. 5 is the sectional view of the FPC of the utility model embodiment 1.
Fig. 6 is the sectional view of the FPC of the utility model embodiment 2.
Reference is as follows：
1- solders side；The golden fingers of 11- first；2- non-solder face；The golden fingers of 21- second；3-PI opens a window.
Embodiment
With reference to Fig. 3 the technical solution of the utility model is further illustrated to Fig. 6 and by specific embodiment.
Embodiment 1
As shown in Figures 3 to 5, prevent that the FPC fractureed includes solder side 1 and non-solder face 21, solder side 1 is set
There is the first golden finger 11, non-solder face 21 is provided with the second golden finger 21, the length of the first golden finger 11 and the second golden finger 21
Length it is unequal, solder side 1 at the first golden finger 11 PI windowing 3, PI of the non-solder face 21 at the second golden finger 21
Windowing 3 is curve.The length of first golden finger 11 and the length of the second golden finger 21 are unequal, can effectively prevent FPC
Fractureed in welding；PI of the solder side 1 at the first golden finger 11 is opened a window into 3, non-solder face 21 at the second golden finger 21
PI windowings 3 are disposed as curve, can prevent during welding and bending assembling FPC, because PI open a window 3 edge stresses concentrate and
FPC is caused to be fractureed from 3 edges of PI windowings.
In the present embodiment, PI of the solder side 1 at the first golden finger 11 opens a window 3, non-solder face 21 in the second golden finger 21
The PI windowings 3 at place are wave, further to reduce the stress concentration at 3 edges of PI windowings, prevent FPC from 3 edges of PI windowings
Fracture.
Preferably, length long 0.3~0.5mm of the length of the second golden finger 21 than the first golden finger 11.In the present embodiment,
Length long 0.4mm of the length of second golden finger 21 than the first golden finger 11.In other embodiments, the length of the second golden finger 21
Degree can also be than other numerical value such as length long 0.3mm, 0.35mm, 0.45mm, 0.5mm of the first golden finger 11.Non-solder face 21
Golden finger it is longer than the golden finger of solder side 1 so that the tin in non-solder face 21 is more during welding so that welding it is more firm, carry
The high reliability of welding.
In the present embodiment, the first golden finger 11 and the second golden finger 21 are provided with through hole.The setting of through hole so that FPC
In welding, the scolding tin of spot welding can be penetrated into through hole, and effectively tin is oozed to realize so that welding is more firm, improves welding
Reliability.
Embodiment 2
The present embodiment is based on embodiment 1, and the present embodiment is not both with embodiment 1：
As shown in fig. 6, length long 0.3~0.5mm of the length of the first golden finger 11 than the second golden finger 21.The present embodiment
In, length long 0.4mm of the length than the second golden finger 21 of the first golden finger 11.In other embodiments, the first golden finger 11
Length can also than the second golden finger 21 length long 0.3mm, 0.35mm, 0.45mm, 0.5mm.The golden finger ratio of solder side 1
The golden finger in non-solder face 21 is long, can reduce the difficulty of processing in welding sequence, the possibility that golden finger fractures when reducing welding
Property, improve the welding yield of product.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality
With new thought, it will change in specific embodiments and applications, this specification content should not be construed as
To limitation of the present utility model.
Claims (7)
1. a kind of anti-FPC fractureed, including solder side and non-solder face, it is characterised in that the solder side is provided with
First golden finger, the non-solder face is provided with the second golden finger, the length of first golden finger and second golden finger
Length it is unequal, PI windowing of the solder side at first golden finger, the non-solder face is in the second gold medal hand
PI windowings at finger are curve.
2. FPC according to claim 1, it is characterised in that the solder side is at first golden finger
The PI windowings of PI windowings, the non-solder face at second golden finger are wave.
3. FPC according to claim 1, it is characterised in that the length of second golden finger is than described first
0.3~0.5mm of length length of golden finger.
4. FPC according to claim 3, it is characterised in that the length of second golden finger is than described first
The long 0.4mm of length of golden finger.
5. FPC according to claim 1, it is characterised in that the length of first golden finger is than described second
0.3~0.5mm of length length of golden finger.
6. FPC according to claim 5, it is characterised in that the length of first golden finger is than described second
The long 0.4mm of length of golden finger.
7. FPC according to claim 1, it is characterised in that first golden finger and second golden finger
It is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245290.5U CN206542628U (en) | 2017-03-14 | 2017-03-14 | A kind of anti-FPC fractureed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720245290.5U CN206542628U (en) | 2017-03-14 | 2017-03-14 | A kind of anti-FPC fractureed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206542628U true CN206542628U (en) | 2017-10-03 |
Family
ID=59941996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720245290.5U Active CN206542628U (en) | 2017-03-14 | 2017-03-14 | A kind of anti-FPC fractureed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206542628U (en) |
-
2017
- 2017-03-14 CN CN201720245290.5U patent/CN206542628U/en active Active
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