CN206164989U - Cavity formula flexible circuit board structure - Google Patents
Cavity formula flexible circuit board structure Download PDFInfo
- Publication number
- CN206164989U CN206164989U CN201621071979.2U CN201621071979U CN206164989U CN 206164989 U CN206164989 U CN 206164989U CN 201621071979 U CN201621071979 U CN 201621071979U CN 206164989 U CN206164989 U CN 206164989U
- Authority
- CN
- China
- Prior art keywords
- flexible
- circuit board
- hole
- flexible circuit
- board structure
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model provides a cavity formula flexible circuit board structure, including the first flexible parent metal layer that from top to bottom sets gradually, first flexible copper layer, tie coat, the flexible copper layer of second and second flexible parent metal layer, wherein, seted up a through -hole on the tie coat, be located the through -hole upside the regional switch contact that forms in first flexible copper layer lies in the through -hole downside the flexible copper layer of second is regional form with the 2nd switch contact of a switch contact complex. The utility model discloses utilize the cavity in the flexible circuit board to realize a switch element, set up button or switch on the flexible circuit board among the fungible prior art, not only practiced thrift the cost of electronic product, reduced the production processes of electronic product moreover, saved the snap dome installation of printing board with the button intermediate junction, have simple structure, characteristics with low costs.
Description
Technical field
The utility model is related to circuit board manufacturing area, more particularly to a kind of cavity type flexible circuit board structure.
Background technology
Flexible printed circuit board (Flexible Printed Circuit Board, abridge FPC) is also called flexible print
Circuit board, or claim flexible printed wiring board.
With the development of smart electronicses product, FPC products are also carried out more electronic products and are used, because it has
Have the advantages that many rigid printed circuit boards do not possess.Small product size is little, lightweight, is substantially reduced the volume of device, is suitable for electricity
Sub- product is to high density, miniaturization, lightweight, slimming, the needs that highly reliable direction is developed. with high deflections, can oneself
By bending, winding, torsion, folding, can three-dimensional wiring, require arbitrarily to arrange, change shape according to space layout, and in three-dimensional space
Interior any movement and flexible, so as to reach component assembling and wire connecting integration etc..
But it is relatively traditional that flexibility prints structure, almost identical with ancient rigid printed board.Simply accomplish connection
The effect of electronic devices and components, almost all of control is required for electronic devices and components to complete.So, virtually increased electronics
The attachment step of product components and parts, and the purchase cost of components and parts.
Utility model content
The utility model provide a kind of cavity type flexible circuit board structure, to solve prior art in need in flexible electrical
Special key switch is set on the plate of road, cost is not only increased, and increases the problem of electronic product production link.
To solve the above problems, as one side of the present utility model, there is provided a kind of cavity type flexible circuit is hardened
Structure, including the first flexible substrate layer for from top to bottom setting gradually, the first flexible layers of copper, tack coat, the second flexible layers of copper and the
Two flexible substrate layers, wherein, a through hole is offered on the tack coat, first flexible copper on the upside of the through hole
Layer region forms first switch contact, and the flexible layers of copper region of described second on the downside of the through hole is formed opens with described first
Close the second switch contact that contact coordinates.
Preferably, the tack coat is AD glue-lines.
Preferably, the through hole is rounded.
Preferably, the diameter of the through hole is less than 1 centimetre.
The utility model realizes a switch element using the cavity in flexible PCB, sets in alternative prior art
Button or switch on flexible PCB are put, the cost of electronic product has not only been saved, and reduces the life of electronic product
Produce link, eliminate the metal dome installation of connection in the middle of printed board and button, improve production efficiency, with simple structure, into
The characteristics of this is low.
Description of the drawings
Fig. 1 schematically shows structural representation of the present utility model.
Reference in figure：1st, the first flexible substrate layer；2nd, the first flexible layers of copper；3rd, tack coat；4th, the second flexible layers of copper；
5th, the second flexible substrate layer；6th, through hole.
Specific embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Fig. 1 is refer to, the utility model provides a kind of cavity type flexible circuit board structure, be particularly well-suited to some pressings
Electronic product switch or button at.
The cavity type flexible circuit board structure includes that the first flexible substrate layer 1, first for from top to bottom setting gradually is flexible
The flexible flexible substrate layer 5 of layers of copper 4 and second of layers of copper 2, tack coat 3, second, wherein, a through hole 6, position are offered on tack coat 3
First switch contact is formed in the first flexible region of layers of copper 2 of the upside of through hole 6, positioned at the second flexible area of layers of copper 4 of the downside of through hole 6
Domain forms the second switch contact coordinated with first switch contact.Preferably, tack coat 3 is AD glue-lines.Preferably, the through hole
6 is rounded.Preferably, the diameter of the through hole 6 is less than 1 centimetre.
The characteristics of the utility model takes full advantage of flexible printed circuit board, will form empty in the part in tack coat 3
Chamber (i.e. through hole 6), when in use, can pass through the first flexible substrate layer 1 of pressing through hole 6 top make the first flexible layers of copper 2 to
Under deform, and after the first switch contact for making thereon moves downward and second switch contact is to form loop, so as to
Produce a switching signal.Upon release, the first and second beginning contacts then return to initial off-state.
So, the utility model realizes a switch element, alternative existing skill using the cavity in flexible PCB
The button or switch being arranged in art on flexible PCB, has not only saved the cost of electronic product, and reduces electronics product
The production link of product, the metal dome for eliminating connection in the middle of printed board and button is installed, and improves production efficiency, with structure letter
The characteristics of list, low cost.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (4)
1. a kind of cavity type flexible circuit board structure, it is characterised in that including the first flexible parent metal for from top to bottom setting gradually
Layer (1), the first flexible layers of copper (2), tack coat (3), the second flexible layers of copper (4) and the second flexible substrate layer (5), wherein, it is described
A through hole (6) is offered on tack coat (3), flexible layers of copper (2) region of described first on the upside of the through hole (6) is formed
First switch contact, flexible layers of copper (4) region of described second on the downside of the through hole (6) is formed touches with the first switch
The second switch contact that point coordinates.
2. cavity type flexible circuit board structure according to claim 1, it is characterised in that the tack coat (3) is AD glue
Layer.
3. cavity type flexible circuit board structure according to claim 1, it is characterised in that the through hole (6) is rounded.
4. cavity type flexible circuit board structure according to claim 3, it is characterised in that the diameter of the through hole (6) is little
In 1 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621071979.2U CN206164989U (en) | 2016-09-22 | 2016-09-22 | Cavity formula flexible circuit board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621071979.2U CN206164989U (en) | 2016-09-22 | 2016-09-22 | Cavity formula flexible circuit board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164989U true CN206164989U (en) | 2017-05-10 |
Family
ID=58651309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621071979.2U Withdrawn - After Issue CN206164989U (en) | 2016-09-22 | 2016-09-22 | Cavity formula flexible circuit board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231794A (en) * | 2016-09-22 | 2016-12-14 | 深圳市迅捷兴科技股份有限公司 | Cavity type flexible circuit board structure and preparation method thereof |
-
2016
- 2016-09-22 CN CN201621071979.2U patent/CN206164989U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231794A (en) * | 2016-09-22 | 2016-12-14 | 深圳市迅捷兴科技股份有限公司 | Cavity type flexible circuit board structure and preparation method thereof |
| CN106231794B (en) * | 2016-09-22 | 2019-01-18 | 深圳市迅捷兴科技股份有限公司 | Cavity type flexible circuit board structure and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170510 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |