CN219068483U - Soft and hard combined circuit board - Google Patents
Soft and hard combined circuit board Download PDFInfo
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- CN219068483U CN219068483U CN202222682429.6U CN202222682429U CN219068483U CN 219068483 U CN219068483 U CN 219068483U CN 202222682429 U CN202222682429 U CN 202222682429U CN 219068483 U CN219068483 U CN 219068483U
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- circuit board
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Abstract
The utility model provides a soft and hard combined circuit board which comprises a hard board, a plurality of flexible boards and a plurality of groups of positioning holes, wherein the hard board is arranged on the hard board; the flexible boards are arranged on one side of the hard board; the hard plate and the flexible plates are rectangular, and the short sides or long sides of the plurality of flexible plates are opposite; the plurality of groups of positioning holes are arranged at the edge of the flexible board; the edge of each flexible board is correspondingly provided with a plurality of groups of positioning holes, the expansion and contraction amount is reserved in the positioning holes, the stretching force is increased for the hard board with smaller expansion and contraction degree, the stretching is restrained for the flexible board with larger expansion and contraction degree, the variation in expansion and contraction measurement is reduced, and therefore the problem that the soft and hard combined circuit board is deviated and deformed due to different expansion and contraction degrees is solved, the quality of the circuit board is improved, and the production cost is reduced.
Description
Technical Field
The utility model relates to the field of circuit boards, in particular to a soft and hard combined circuit board.
Background
The soft and hard combined circuit board is formed by combining a flexible circuit board and a hard circuit board together according to related technological requirements through the working procedures of pressing and the like, wherein the flexible circuit board and the hard circuit board have FPC characteristics and PCB characteristics; in the manufacturing process of the soft and hard combined circuit board, the deviation and even deformity of the circuit board are easily caused due to the difference of the expansion degree and the contraction degree of the flexible circuit board and the hard circuit board, and the quality of the circuit board is influenced.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the soft and hard combined circuit board reduces variation in expansion and contraction measurement, improves the quality of the circuit board and reduces production cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a soft and hard combined circuit board comprises a hard board, a plurality of flexible boards and a plurality of groups of positioning holes; the flexible boards are arranged on one side of the hard board; the hard plate and the flexible plates are rectangular, and the short sides or long sides of the plurality of flexible plates are opposite; the plurality of groups of positioning holes are formed in the edge of the flexible plate.
Further, the positioning holes comprise a first group of positioning holes and a second group of positioning holes;
the first group of positioning holes are respectively arranged on the long sides of the flexible plate, and the second group of positioning holes are respectively arranged on the short sides of the flexible plate.
Further, each positioning hole in the first group of positioning holes corresponds to a long side of a flexible board; each positioning hole in the second group of positioning holes corresponds to the short side of one flexible board.
Further, the aperture of the first set of positioning holes is larger than the aperture of the second set of positioning holes.
Further, a plurality of products are arranged on one side, far away from the hard plate, of the flexible plate, and the products are longitudinally distributed or transversely distributed.
Further, the products are arranged on one side of the flexible board in a longitudinal arrangement mode, and short sides among the flexible boards are opposite.
Further, the plurality of products are arranged on one side of the flexible board in a transverse arrangement mode, and long sides among the plurality of flexible boards are opposite.
Further, the aperture of the first group of positioning holes is 3.175+/-0.025 mm.
Further, the aperture of the second group of positioning holes is 2.0+/-0.025 mm.
Further, the distance between the flexible boards is 1-3mm.
The utility model has the beneficial effects that: the edge of each flexible board is correspondingly provided with a plurality of groups of positioning holes, the expansion and contraction amount is reserved in the positioning holes, the stretching force is increased for the hard board with smaller expansion and contraction degree, the stretching is restrained for the flexible board with larger expansion and contraction degree, the variation in expansion and contraction measurement is reduced, and therefore the problem that the soft and hard combined circuit board is deviated and deformed due to different expansion and contraction degrees is solved, the quality of the circuit board is improved, and the production cost is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a soft-hard combined circuit board according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a positioning hole of a soft and hard combined circuit board according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a product in a longitudinal arrangement according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a product according to an embodiment of the present utility model in a transverse arrangement;
description of the reference numerals:
1. a hard plate; 2. a flexible board; 3. positioning holes; 4. a product; 31. a first set of locating holes; 32. a second set of locating holes.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the present utility model provides a flexible-rigid printed circuit board, which includes a rigid board, a plurality of flexible boards, and a plurality of sets of positioning holes; the flexible boards are arranged on one side of the hard board; the hard plate and the flexible plates are rectangular, and the short sides or long sides of the plurality of flexible plates are opposite; the plurality of groups of positioning holes are formed in the edge of the flexible plate.
From the above description, the beneficial effects of the utility model are as follows: the edge of each flexible board is correspondingly provided with a plurality of groups of positioning holes, the expansion and contraction amount is reserved in the positioning holes, the stretching force is increased for the hard board with smaller expansion and contraction degree, the stretching is restrained for the flexible board with larger expansion and contraction degree, the variation in expansion and contraction measurement is reduced, and therefore the problem that the soft and hard combined circuit board is deviated and deformed due to different expansion and contraction degrees is solved, the quality of the circuit board is improved, and the production cost is reduced.
Further, the positioning holes comprise a first group of positioning holes and a second group of positioning holes;
the first group of positioning holes are respectively arranged on the long sides of the flexible plate, and the second group of positioning holes are respectively arranged on the short sides of the flexible plate.
As can be seen from the above description, the expansion and contraction measurement is to measure the deformation between two points, if the edge length of the plate is longer, the deformation is larger, and the tolerance is larger, so that different positioning holes are provided for the edges with different lengths, so as to reduce the variation during the expansion and contraction measurement to the greatest extent.
Further, each positioning hole in the first group of positioning holes corresponds to a long side of a flexible board; each positioning hole in the second group of positioning holes corresponds to the short side of one flexible board.
As can be seen from the above description, each set of positioning holes is respectively disposed in different directions, and each flexible board is provided with a corresponding positioning hole, so as to reduce variation during subsequent expansion and contraction measurement and ensure the parameter precision of the circuit board.
Further, the aperture of the first set of positioning holes is larger than the aperture of the second set of positioning holes.
As can be seen from the above description, the first set of positioning holes are disposed on the long side, and the second set of positioning holes are disposed on the short side, so that the aperture of the positioning holes corresponds to the long and short sides of the positioning holes, thereby ensuring uniformity of deformation of the long and short sides and avoiding breakage of the plate due to curling.
Further, a plurality of products are arranged on one side of the flexible board far away from the hard board.
Further, the products are arranged on one side of the flexible board in a longitudinal arrangement mode, and short sides among the flexible boards are opposite.
Further, the plurality of products are arranged on one side of the flexible board in a transverse arrangement mode, and long sides among the plurality of flexible boards are opposite.
It can be seen from the above description that, due to different typesetting modes of the products, the expansion and contraction deformation degree of each direction is different, and the direction of the laminated board between the boards is selected according to the typesetting modes of the products, so as to ensure that the expansion and contraction rates of each direction of the flexible boards are consistent.
Further, the aperture of the first group of positioning holes is 3.175+/-0.025 mm.
Further, the aperture of the second group of positioning holes is 2.0+/-0.025 mm.
Further, the distance between the flexible boards is 1-3mm.
As is apparent from the above description, the plate-to-plate spacing of da Yi causes the plate to become larger in the region of the plate that is deformed by bending during compression; too small a plate-to-plate spacing can easily cause plate-to-plate deformation during compression, resulting in plate-to-plate registration.
The soft and hard combined circuit board provided by the utility model can be used for reducing the variation of the soft and hard combined circuit board in the expansion and contraction measurement, improving the quality of the circuit board and reducing the production cost, and the following is explained by a specific embodiment:
referring to fig. 1 to 4, a first embodiment of the present utility model is as follows:
a soft and hard combined circuit board comprises a hard board 1, a plurality of flexible boards 2 and a plurality of groups of positioning holes 3; the flexible boards 2 are arranged on one side of the hard board 1; the hard plate 1 and the flexible plates 2 are rectangular, and short sides or long sides of the flexible plates 2 are opposite; the plurality of groups of positioning holes 3 are arranged at the edge of the flexible board 2.
Specifically, referring to fig. 2, the positioning holes 3 include a first set of positioning holes 31 and a second set of positioning holes 32;
the first set of positioning holes 31 are respectively arranged on the long sides of the flexible board 2, and the second set of positioning holes 32 are respectively arranged on the short sides of the flexible board 2.
Each positioning hole in the first set of positioning holes 31 corresponds to a long side of one flexible board 2; each of the second set of positioning holes 32 corresponds to a short side of one of the flexible boards 2.
The first set of positioning holes 31 has a larger aperture than the second set of positioning holes 32.
The flexible board 2 is far away from one side of the hard board 1 is provided with a plurality of products 4, and the products 4 are longitudinally arranged or transversely arranged.
In an alternative embodiment, the plurality of products 4 are arranged in a longitudinal row on one side of the flexible board 2, with the short sides of the plurality of flexible boards 2 being opposite.
In an alternative embodiment, the plurality of products 4 are arranged in a lateral arrangement on one side of the flexible board 2, with the long sides of the plurality of flexible boards 2 being opposite.
In this embodiment, the first set of positioning holes 31 has a hole diameter of 3.175±0.025mm; the aperture of the second set of positioning holes 32 is 2.0±0.025mm; the distance between the flexible boards 2 is 1-3mm.
In summary, according to the soft and hard combined circuit board provided by the utility model, the edges of each flexible board are correspondingly provided with the plurality of groups of positioning holes, the expansion and contraction amount is reserved in the positioning holes, the stretching force is increased for the hard board with smaller expansion and contraction degree, the stretching is restrained for the flexible board with larger expansion and contraction degree, and the variation in expansion and contraction measurement is reduced, so that the problem of deflection deformation of the soft and hard combined circuit board caused by different expansion and contraction degrees is reduced, the quality of the circuit board is improved, and the production cost is reduced.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The soft and hard combined circuit board is characterized by comprising a hard board, a plurality of flexible boards and a plurality of groups of positioning holes; the flexible boards are arranged on one side of the hard board; the hard plate and the flexible plates are rectangular, and the short sides or long sides of the plurality of flexible plates are opposite; the plurality of groups of positioning holes are formed in the edge of the flexible plate.
2. The flexible and rigid circuit board of claim 1, wherein the locating holes comprise a first set of locating holes and a second set of locating holes;
the first group of positioning holes are respectively arranged on the long sides of the flexible plate, and the second group of positioning holes are respectively arranged on the short sides of the flexible plate.
3. The flexible-rigid circuit board according to claim 2, wherein each positioning hole in the first set of positioning holes corresponds to a long side of a flexible board; each positioning hole in the second group of positioning holes corresponds to the short side of one flexible board.
4. The flexible and rigid circuit board of claim 2, wherein the first set of locating holes has a larger aperture than the second set of locating holes.
5. The flexible-rigid combined circuit board according to claim 1, wherein a plurality of products are arranged on one side of the flexible board away from the hard board, and the products are longitudinally arranged or transversely arranged.
6. The flexible-rigid circuit board according to claim 5, wherein the plurality of products are arranged in a longitudinal arrangement on one side of the flexible board, and short sides of the plurality of flexible boards are opposite to each other.
7. The flexible-rigid circuit board according to claim 5, wherein the plurality of products are arranged on one side of the flexible board in a lateral arrangement, and long sides of the plurality of flexible boards are opposite to each other.
8. A rigid-flex circuit board according to claim 3, wherein said first set of positioning holes have a hole diameter of 3.175±0.025mm.
9. A rigid-flex circuit board according to claim 3, wherein said second set of positioning holes have a hole diameter of 2.0±0.025mm.
10. A rigid-flex circuit board according to claim 1, characterized in that the spacing between said flexible boards is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222682429.6U CN219068483U (en) | 2022-10-12 | 2022-10-12 | Soft and hard combined circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222682429.6U CN219068483U (en) | 2022-10-12 | 2022-10-12 | Soft and hard combined circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219068483U true CN219068483U (en) | 2023-05-23 |
Family
ID=86345059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222682429.6U Active CN219068483U (en) | 2022-10-12 | 2022-10-12 | Soft and hard combined circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219068483U (en) |
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2022
- 2022-10-12 CN CN202222682429.6U patent/CN219068483U/en active Active
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