CN203233591U - Reinforcing plate and circuit board - Google Patents
Reinforcing plate and circuit board Download PDFInfo
- Publication number
- CN203233591U CN203233591U CN 201320145725 CN201320145725U CN203233591U CN 203233591 U CN203233591 U CN 203233591U CN 201320145725 CN201320145725 CN 201320145725 CN 201320145725 U CN201320145725 U CN 201320145725U CN 203233591 U CN203233591 U CN 203233591U
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- China
- Prior art keywords
- stiffening plate
- circuit board
- flexible circuit
- join domain
- opening
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- Expired - Lifetime
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Abstract
The utility model provides a reinforcing plate arranged under a reinforcing area of a flexible circuit board. Side surface of the reinforcing plate comprises an opening having a bottom and two opposite sidewalls, each having a clamping point, and a gap is arranged between a line connecting the clamping points on the two sidewalls and the bottom of the opening. Distance between the two clamping points is greater than or equals to the width of the top of a connecting area of the flexible circuit board and is smaller than or equals to the width of the bottom of the connecting area of the flexible circuit board, so that the connecting area is clamped at the clamping point position, and the connecting area bends towards the opening with a filleted corner. The bottom of the opening does not contact the flexible circuit board, thereby preventing the cutting effect of the edge of the reinforcing plate on the flexible circuit board, and improving the bending performance of the circuit board. Compared with the prior art, the circuit board is unlikely to break apart.
Description
Technical field
The utility model relates to the stiffening plate technical field, more particularly, relates to a kind of stiffening plate and wiring board.
Background technology
Flexible circuit board (FPC, Flexible Printed Circuit) is applied to industries such as integrated circuit, software, new component, is subjected to extensive welcome with advantages such as its distribution density height, in light weight, thin thickness.
Owing to have flexibility, when carrying components and parts, the mechanical strength of flexible circuit board needs to strengthen, and normally pastes stiffening plate in the zone that needs are strengthened.Therefore, the zone that is pasted with stiffening plate on the flexible circuit board is not bent, and the zone of not pasting stiffening plate can bend.
But, find that in actual applications the circuit in the bent zone of flexible circuit board ruptures easily.
The utility model content
The utility model provides a kind of stiffening plate and wiring board, to improve the bending performance of wiring board, makes its not easy fracture.
For achieving the above object, the utility model provides following technical scheme:
A kind of stiffening plate, be arranged at the below of flexible circuit board, described flexible circuit board comprises reinforced region and bending zone, and connect described reinforced region and bend regional join domain, the top of described join domain is connected with described bending zone, the bottom of described join domain is connected with described reinforced region, described stiffening plate is positioned at the below of described reinforced region, it is characterized in that, the side of described stiffening plate has opening, described opening comprises bottom and two relative sidewalls, respectively has a stuck point on each described sidewall, line and the described open bottom of the stuck point on described two sidewalls have the gap, and the distance between the stuck point on described two sidewalls is more than or equal to the width at the top of described join domain, the width that is less than or equal to the bottom of described join domain to block the join domain of described flexible circuit board in described stuck point position, makes the join domain of described flexible circuit board be the fillet bending towards the opening of described stiffening plate.
Preferably, described two sidewalls are cambered surface.
Preferably, the center of circle of described two sidewall cambered surfaces is positioned at the outside of described stiffening plate.
Preferably, the cambered surface radius of described two sidewall cambered surfaces is identical.
Preferably, described join domain is arc transition, and the cambered surface radius of described two sidewall cambered surfaces is identical with the radius of curvature of the circular arc of described join domain.
Preferably, the bottom of described opening is a plane, and the length on described plane is identical with the width at the top of described join domain, and the top length of described opening is identical with the width of the bottom of described join domain.
Preferably, the center of circle of described two sidewall cambered surfaces is positioned at the inside of described stiffening plate.
Preferably, described two sidewalls are the plane.
Preferably, described open bottom is a plane, and described two sidewalls are all perpendicular to described open bottom.
Preferably, described open bottom is a plane, and described two sidewalls all are the angle of 0 degree～90 degree with described open bottom, and the top length of described opening is greater than the bottom lengths of described opening.
Preferably, the angle of the angle that is of described two sidewalls and described open bottom is identical.
The utility model also provides a kind of wiring board, comprise flexible circuit board and above-described stiffening plate, described flexible circuit board comprises reinforced region and bending zone, and connect described reinforced region and bend regional join domain, described stiffening plate is arranged at the below of the reinforced region of described flexible circuit board, and the join domain of described flexible circuit board is the fillet bending towards described stiffening plate.
Compared with prior art, technical scheme provided by the utility model has the following advantages at least:
Stiffening plate provided by the utility model and wiring board, side at stiffening plate is provided with opening, has a stuck point on the two side of opening respectively, and the line that makes two stuck points on the sidewall is not on open bottom, distance between the stuck point on two sidewalls is less than or equal to the width of the bottom of join domain more than or equal to the width at the top of the join domain of flexible circuit board.
When flexible circuit board during towards the bending of the opening of stiffening plate, stuck point on the opening sidewalls of stiffening plate can be with the both sides jack-up of the join domain of flexible circuit board, block join domain, join domain just can be the fillet bending, the bottom of opening can not contact with flexible circuit board, when having avoided that flexible circuit board at right angles bends in the prior art, the stiffening plate edge is to the cutting effect of flexible circuit board, increased the bending space, therefore improve the bending performance of wiring board, be not easy fracture with respect to wiring board of the prior art.
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.
The vertical view of a kind of stiffening plate that Fig. 1 provides for the utility model embodiment one;
The vertical view of the flexible circuit board that Fig. 2 provides for the utility model embodiment one;
The vertical view of the position relation of the utility model embodiment one stiffening plate that provides and flexible circuit board is provided Fig. 3;
The vertical view of the stiffening plate of the utility model embodiment one other opening shape that provides is provided Fig. 4～Fig. 6;
The structure chart of the utility model embodiment two wiring board that provides is provided Fig. 7;
Fig. 8 is the schematic diagram of flexible circuit board bending in the prior art.
Embodiment
Just as stated in the Background Art, the circuit in the Chang Gui bent zone of flexible circuit board that has stiffening plate is very easy to fracture.The inventor discovers, if it is main to produce the reason of this phenomenon, prior art MR medium reinforcing plate is generally the plank of a monoblock cuboid, the angle at its edge is 90 degree, stiffening plate directly is covered on the below of flexible circuit board, in order to strengthen the mechanical strength of flexible circuit board subregion, the other parts of flexible circuit board are to need to keep flexible bent, when flexible circuit board bends, the junction of posting the zone of stiffening plate and bent zone directly and the EDGE CONTACT of stiffening plate, therefore the edge that is an angle of 90 degrees can produce the cutting effect to flexible circuit board, and repeatedly after the bending, the circuit of flexible circuit board is very easy to rupture.
Based on this, the utility model provides a kind of stiffening plate and wiring board, and this stiffening plate is specially:
The side of described stiffening plate has opening, described opening comprises bottom and two relative sidewalls, respectively has a stuck point on each described sidewall, line and the described open bottom of the stuck point on described two sidewalls have the gap, and the distance between the stuck point on described two sidewalls is more than or equal to the width at the top of described join domain, the width that is less than or equal to the bottom of described join domain, to block the join domain of described flexible circuit board in described stuck point position, make the join domain of described flexible circuit board be the fillet bending towards the opening of described stiffening plate.
Stiffening plate provided by the utility model and wiring board, side at stiffening plate is provided with opening, has a stuck point on the two side of opening respectively, and the line that makes two stuck points on the sidewall is not on open bottom, distance between the stuck point on two sidewalls is less than or equal to the width of the bottom of join domain more than or equal to the width at the top of the join domain of flexible circuit board.
When flexible circuit board during towards the bending of the opening of stiffening plate, stuck point on the opening sidewalls of stiffening plate can be with the both sides jack-up of the join domain of flexible circuit board, block join domain, join domain just can be the fillet bending, the bottom of opening can not contact with flexible circuit board, when having avoided that flexible circuit board at right angles bends in the prior art, the stiffening plate edge is to the cutting effect of flexible circuit board, increased the bending space, therefore improve the bending performance of wiring board, be not easy fracture with respect to wiring board of the prior art.
More than be core concept of the present utility model, can become apparent more for making above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can do similar popularization under the situation of the utility model intension, so the utility model is not subjected to the restriction of following public specific embodiment.
Secondly, the utility model is described in detail in conjunction with schematic diagram, when the utility model embodiment is described in detail in detail; for ease of explanation; the profile of indication device structure can be disobeyed general ratio and be done local the amplification, and described schematic diagram is example, and it should not limit the scope of the utility model protection at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Embodiment one
Present embodiment provides a kind of stiffening plate, be arranged at the below of flexible circuit board, with reference to the accompanying drawings 1,2,3, described flexible circuit board comprises reinforced region 201 and bending zone 202, and the join domain 203 in the described reinforced region 201 of connection and bending zone 202, the top of described join domain 203 is connected with described bending zone 202, and the bottom of described join domain 203 is connected with described reinforced region 201, and described stiffening plate 101 is positioned at the below of described reinforced region 201; The side of described stiffening plate 101 has opening, described opening comprises bottom 103 and two relative sidewalls 102, respectively has a stuck point 301 on each described sidewall 102, line and the described open bottom 103 of the stuck point 301 on described two sidewalls have the gap, and the distance between the stuck point 301 on described two sidewalls is more than or equal to the width at the top of described join domain 203, the width that is less than or equal to the bottom of described join domain 203, to block the join domain 203 of described flexible circuit board in described stuck point 301 positions, make the join domain 203 of described flexible circuit board be the fillet bending towards the opening of described stiffening plate 101.
When join domain 203 bends towards opening, the sidewall 102 of stiffening plate 101 openings meets with the both sides of join domain, stuck point 301 on the sidewall 102 withstands the both sides of join domain 203, join domain 203 just can not bend inwards again, therefore can not contact with open bottom 103, do not have to produce flexible circuit board the part of cutting effect on the stiffening plate 101, can not rupture after flexible circuit board repeatedly bends yet.
Need to prove, Fig. 1,2,3 is depicted as the embodiment of an optimum of the present utility model, this optimal case is specially: two sidewalls 102 of stiffening plate 101 openings are cambered surface, the center of circle of two sidewall 102 cambered surfaces is positioned at the outside of stiffening plate 101, namely two sidewall 102 cambered surfaces are crooked relatively, and the cambered surface radius of two sidewall 102 cambered surfaces is identical; Usually the join domain 203 of flexible circuit board is arc transition, and the radius of curvature of two circular arcs of the join domain 203 both sides all cambered surface radius with two sidewall 102 cambered surfaces of stiffening plate 101 openings is identical; Simultaneously, the bottom 103 of opening is a plane, and the length on described plane is identical with the width at the top of join domain 203, and the top length of opening is identical with the width of the bottom of join domain 203; In this case, the distance between the stuck point 301 on two sidewalls is greater than the width at the top of join domain 203, less than the width of the bottom of join domain 203.
The sidewall 102 of above-mentioned optimal case stiffening plate all is arranged to cambered surface, make sidewall 102 relatively slicker and more sly with the junction of bottom 103, do not have sharp-pointed angle, prevented that the stress at sharp angles place from concentrating, the stress of sidewall is disperseed, the intensity of stiffening plate is had useful effect.
Except above-mentioned optimal case, the utility model can also have multiple preferred version, describes in detail below.
Present embodiment does not limit the concrete shape of stiffening plate upper shed, and as shown in Figure 4, two sidewalls 402 of stiffening plate 401 are cambered surface, and the center of circle of two sidewall 402 cambered surfaces is positioned at stiffening plate 401 inside, and namely two sidewall 402 cambered surfaces are towards the direction bending that deviates from mutually; The cambered surface radius of two cambered surfaces can be identical, also can be different, be preferably identical.
As shown in Figure 5, the open bottom 503 of stiffening plate 501 is a plane, and two sidewalls 502 of opening are the plane, and two sidewalls 502 are all perpendicular to open bottom 503; Namely from vertical view, opening be shaped as a rectangle.
As shown in Figure 6, the open bottom 603 of stiffening plate 601 is a plane, and two sidewalls 602 all are the angle of 0 degree～90 degree with open bottom 603, and the top length of opening is greater than the length of the bottom 603 of opening; Namely from vertical view, being shaped as of opening is one trapezoidal; The angle of two sidewalls 602 and the angle that open bottom 603 is can be identical, also can be different, be preferably identical.
Need to prove that present embodiment does not limit the shape of the bottom of stiffening plate opening, the bottom of opening can be a plane, also can be its shape, and opening is preferably a plane.
In addition, present embodiment is to the magnitude relationship of the length of the length of stiffening plate open top and bottom, the length of open top can greater than, be less than or equal to the length of bottom, in the present embodiment preferably the length of open top greater than the length of bottom.
Need to prove that the design of above-described various stiffening plates only is preferred embodiments more of the present utility model, any stiffening plate based on the utility model basic thought designs all within protection range of the present utility model.
Embodiment two
Present embodiment provides a kind of wiring board, as shown in Figure 7, comprise the stiffening plate 701 described in flexible circuit board 702 and the embodiment one, described flexible circuit board 702 comprises reinforced region and bending zone, and connect described reinforced region and bend regional join domain, described stiffening plate 701 is arranged at the below of the reinforced region of described flexible circuit board 702, and the join domain of described flexible circuit board 702 is fillet 704 bendings towards described stiffening plate 701.
And flexible circuit board is the right angle bending in the prior art, as shown in Figure 8, and during flexible circuit board 802 bendings, edge by stiffening plate 801 withstands, rectangular 804 bendings, and the zone of flexible circuit board 802 bendings has only a limit, repeatedly after the bending, the circuit of process this edge ruptures easily.
Therefore, the wiring board that present embodiment provides has been avoided the cutting effect of stiffening plate edge to flexible circuit board, and the circuit on the wiring board is not easy fracture more.
Experimental data below by concrete illustrates the beneficial effects of the utility model, and following table 1 is wiring board bending number of times and the crack conditions contrast table of present embodiment and prior art.
Table 1
By top contrast, be not difficult to find, the situation of wiring board rupture of line has just taken place for 30 times in the flexible circuit board bending that is provided with stiffening plate in the prior art, the wiring board that adopts stiffening plate provided by the utility model to make, its flexible circuit board is after bending 100 times, still do not have the sign of fracture, the bending performance of visible wiring board provided by the utility model strengthens greatly.
Need to prove, generally, in order to prevent having the problem that sharp angles is torn the concentrated flexible circuit board transition position that causes of stress, flexible circuit board has fillet and handles, be that the flexible circuit board join domain is arc transition, the both sides of join domain are circular arc, and carrying out the transition to the bending zone from reinforced region is arc transition by mild slyness; Stiffening plate provided by the utility model is applicable to above-mentioned flexible circuit board, and the flexible circuit board for the non-arc transition of join domain also can produce identical beneficial effect simultaneously.
At above-mentioned situation, the join domain of flexible circuit board is the right angle transition, and namely the bottom of join domain is identical with top width, and at this moment, the distance between the stuck point on two sidewalls of stiffening plate will equal the width of top or the bottom of flexible circuit board join domain.
Though the utility model discloses as above with preferred embodiment, yet is not in order to limit the utility model.Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model according to any simple modification, equivalent variations and the modification that technical spirit of the present utility model is done above embodiment, all still belongs in the scope of technical solutions of the utility model protection.
Claims (12)
1. stiffening plate, be arranged at the below of flexible circuit board, described flexible circuit board comprises reinforced region and bending zone, and connect described reinforced region and bend regional join domain, the top of described join domain is connected with described bending zone, the bottom of described join domain is connected with described reinforced region, described stiffening plate is positioned at the below of described reinforced region, it is characterized in that, the side of described stiffening plate has opening, described opening comprises bottom and two relative sidewalls, respectively has a stuck point on each described sidewall, line and the described open bottom of the stuck point on described two sidewalls have the gap, and the distance between the stuck point on described two sidewalls is more than or equal to the width at the top of described join domain, the width that is less than or equal to the bottom of described join domain to block the join domain of described flexible circuit board in described stuck point position, makes the join domain of described flexible circuit board be the fillet bending towards the opening of described stiffening plate.
2. stiffening plate according to claim 1 is characterized in that, described two sidewalls are cambered surface.
3. stiffening plate according to claim 2 is characterized in that, the center of circle of described two sidewall cambered surfaces is positioned at the outside of described stiffening plate.
4. stiffening plate according to claim 3 is characterized in that, the cambered surface radius of described two sidewall cambered surfaces is identical.
5. stiffening plate according to claim 4 is characterized in that, described join domain is arc transition, and the cambered surface radius of described two sidewall cambered surfaces is identical with the radius of curvature of the circular arc of described join domain.
6. stiffening plate according to claim 5 is characterized in that, the bottom of described opening is a plane, and the length on described plane is identical with the width at the top of described join domain, and the top length of described opening is identical with the width of the bottom of described join domain.
7. stiffening plate according to claim 2 is characterized in that, the center of circle of described two sidewall cambered surfaces is positioned at the inside of described stiffening plate.
8. stiffening plate according to claim 1 is characterized in that, described two sidewalls are the plane.
9. stiffening plate according to claim 8 is characterized in that, described open bottom is a plane, and described two sidewalls are all perpendicular to described open bottom.
10. stiffening plate according to claim 8 is characterized in that, described open bottom is a plane, and described two sidewalls all are the angle of 0 degree～90 degree with described open bottom, and the top length of described opening is greater than the bottom lengths of described opening.
11. stiffening plate according to claim 10 is characterized in that, described two sidewalls are identical with the angle of the angle that described open bottom is.
12. wiring board, it is characterized in that, comprise each described stiffening plate of flexible circuit board and claim 1～11, described flexible circuit board comprises reinforced region and bending zone, and connect described reinforced region and bend regional join domain, described stiffening plate is arranged at the below of the reinforced region of described flexible circuit board, and the join domain of described flexible circuit board is the fillet bending towards described stiffening plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145725 CN203233591U (en) | 2013-03-27 | 2013-03-27 | Reinforcing plate and circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145725 CN203233591U (en) | 2013-03-27 | 2013-03-27 | Reinforcing plate and circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233591U true CN203233591U (en) | 2013-10-09 |
Family
ID=49289690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145725 Expired - Lifetime CN203233591U (en) | 2013-03-27 | 2013-03-27 | Reinforcing plate and circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203233591U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071207A (en) * | 2020-09-15 | 2020-12-11 | 武汉华星光电半导体显示技术有限公司 | Composite heat dissipation material and display device |
| CN113225899A (en) * | 2021-04-28 | 2021-08-06 | 广州立景创新科技有限公司 | Electronic device |
| CN115582631A (en) * | 2022-09-23 | 2023-01-10 | 深圳市汇川技术股份有限公司 | Flight processing method, flight processing device, laser plane cutting equipment and medium |
-
2013
- 2013-03-27 CN CN 201320145725 patent/CN203233591U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071207A (en) * | 2020-09-15 | 2020-12-11 | 武汉华星光电半导体显示技术有限公司 | Composite heat dissipation material and display device |
| CN113225899A (en) * | 2021-04-28 | 2021-08-06 | 广州立景创新科技有限公司 | Electronic device |
| CN115582631A (en) * | 2022-09-23 | 2023-01-10 | 深圳市汇川技术股份有限公司 | Flight processing method, flight processing device, laser plane cutting equipment and medium |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |