CN212696263U

CN212696263U - Double-sided embedded fine flexible circuit board

Info

Publication number: CN212696263U
Application number: CN202021773934.6U
Authority: CN
Inventors: 柴暕; 南朋飞
Original assignee: Shenzhen Huazheng Technology Co ltd
Current assignee: Shenzhen Huazheng Technology Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-03-12
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a double-sided embedded type fine flexible circuit board, which comprises a core plate and a mounting plate, wherein a first insulating layer is arranged on the upper side of the core plate, a first heat conducting sheet is fixedly connected to one side of the first insulating layer, a first heat collecting sheet is fixedly connected to one side of the first heat conducting sheet, a first protective layer is fixedly connected to one side of the first heat conducting sheet, a first surface plate is fixedly connected to one side of the first protective layer, a second insulating layer is arranged on the lower side of the core plate, and a second heat conducting sheet is fixedly connected to one side of the second insulating layer, the utility model is provided with the first heat conducting sheet and the second heat conducting sheet, heat generated by the surface plate and the core plate can be conducted out, the first insulating layer and the second insulating layer are provided with heat conducting silica gel sheets, heat transmission is facilitated, the first heat collecting sheet and the second heat collecting sheet are arranged, and the first heat collecting, the circuit board can be cooled.

Description

Double-sided embedded fine flexible circuit board

Technical Field

The utility model relates to a flexible line way board technical field specifically is a two-sided embedded fine flexible line way board.

Background

Flexible wiring boards are printed circuits made from flexible, insulating substrates. Flexible circuits provide excellent electrical performance, meet design requirements for smaller and higher density packaging, and also help reduce assembly processes and enhance reliability. The flexible circuit board is the only solution to meet the miniaturization and movement requirements of electronic products. The flexible printed circuit board can be freely bent, wound and folded, can bear millions of dynamic bending without damaging the lead, can be randomly arranged according to the space layout requirement, and can be freely moved and stretched in a three-dimensional space, so that the integration of component assembly and lead connection is realized; the flexible circuit board can greatly reduce the volume and the weight of the electronic product, and is suitable for the development of the electronic product towards high density, miniaturization and high reliability.

The double-layer board is formed by using a double-sided copper-clad plate material to complete a double-sided circuit, a layer of protective film is respectively added on two sides of the double-sided copper-clad plate material to form a circuit board with double-layer conductors, and part of double-sided embedded flexible circuit boards are inconvenient to dissipate heat when being wound, are easy to damage or have a reduced service life, and are not beneficial to improving the product quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-sided embedded fine flexible line way board sets up first conducting strip and second conducting strip, can derive the heat that table plywood and core produced, and first insulation layer and second insulating layer set up to the heat conduction silica gel piece, are favorable to thermal transmission, set up first thermal-arrest piece and second thermal-arrest piece, and accessible forced air cooling cools down first thermal-arrest piece and second thermal-arrest piece, can dispel the heat to the circuit board to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two-sided embedded fine flexible line way board, includes core and mounting panel, the core upside is provided with the first insulating layer, the first conducting strip of first insulating layer one side fixedly connected with, the first thermal-arrest piece of first conducting strip one side fixedly connected with, first conducting strip one side fixedly connected with is provided with first inoxidizing coating, the first surface lamination board of first inoxidizing coating one side fixedly connected with, the core downside is provided with the second insulating layer, second insulating layer one side fixedly connected with second conducting strip, second conducting strip one side fixedly connected with second thermal-arrest piece, second conducting strip one side fixedly connected with second inoxidizing coating, second inoxidizing coating one side fixedly connected with second surface lamination board, first thermal-arrest piece and second thermal-arrest piece are the W template.

Preferably, a fixing rod is fixedly connected to the lower side of the first heat collecting plate, and the lower end of the fixing rod is fixedly connected to the upper side of the second heat collecting plate.

Preferably, the first heat collecting plate is replaced by a third heat collecting plate, the second heat collecting plate is replaced by a fourth heat collecting plate, one side of the third heat collecting plate is fixedly connected with a radiating fin, one side of the radiating fin is fixedly connected to the fourth heat collecting plate, and the radiating fin is a W-shaped plate.

Preferably, the first insulating layer and the second insulating layer are both heat-conducting silica gel sheets, and one sides of the first insulating layer and the second insulating layer are both attached to the core plate.

Preferably, the first heat-conducting fins and the second heat-conducting fins are both strip-shaped, the first heat-conducting fins are distributed on one side of the first insulating layer at equal intervals, and the second heat-conducting fins are distributed on one side of the second insulating layer at equal intervals.

Preferably, one side of the second surface plate is attached to an installation plate, and the installation plate is a plane plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the first heat collecting sheet and the second heat collecting sheet are arranged, so that the first heat collecting sheet and the second heat collecting sheet can be cooled through air cooling, and the circuit board can be cooled;

2. the first heat conducting fin and the second heat conducting fin are arranged in a strip shape, and the winding of the circuit board is not hindered.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a portion of the first heat-conducting fin of the present invention;

fig. 3 is a schematic front view of embodiment 2 of the present invention.

In the figure: 1. a core board; 2. mounting a plate; 3. a first insulating layer; 4. a first thermally conductive sheet; 5. a first heat collecting sheet; 6. a first protective layer; 7. a first skin sheet; 8. a second insulating layer; 9. a second thermally conductive sheet; 10. a second heat collecting fin; 11. a second protective layer; 12. a second skin sheet; 13. fixing the rod; 14. a third heat collecting fin; 15. a fourth heat collecting fin; 16. and a heat sink.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model provides a two-sided embedded fine flexible line way board, including core 1 and mounting panel 2, 1 upside of core is provided with first insulating layer 3, the first conducting strip 4 of 3 one sides fixedly connected with in first insulating layer, the first thermal-arrest piece 5 of 4 one sides fixedly connected with in first conducting strip, 4 one sides fixedly connected with in first conducting strip is provided with first inoxidizing coating 6, the first surface plate 7 of 6 one side fixedly connected with in first inoxidizing coating, 1 downside of core is provided with second

insulating layer

8, 8 one side fixedly connected with second conducting strip 9 in second insulating layer, 9 one side fixedly connected with second thermal-arrest piece 10 in second conducting strip, 9 one side fixedly connected with second inoxidizing coating 11 in second thermo strip, 11 one side fixedly connected with second surface plate 12 in second inoxidizing coating, first thermal-arrest piece 5 and second thermal-arrest piece 10 are the W template.

In order to prevent the first heat collecting plate 5 and the second heat collecting plate 10 from being attached to each other and affecting the heat radiation efficiency, a fixing rod 13 is fixedly connected to the lower side of the first heat collecting plate 5, and the lower end of the fixing rod 13 is fixedly connected to the upper side of the second heat collecting plate 10.

In order to realize insulation and heat transfer, the first insulating layer 3 and the second insulating layer 8 are both heat-conducting silica gel sheets, and one sides of the first insulating layer 3 and the second insulating layer 8 are both attached to the core plate 1.

In order to reduce the resistance of folding and winding of the circuit board, the first heat conducting fins 4 and the second heat conducting fins 9 are both in a strip shape, the first heat conducting fins 4 are equidistantly distributed on one side of the first insulating layer 3, and the second heat conducting fins 9 are equidistantly distributed on one side of the second insulating layer 8.

One side of the second surface plate 12 is attached to the mounting plate 2, and the mounting plate 2 is a plane plate.

Example 2

Different from the embodiment 1, the first heat collecting plate 5 is replaced with the third heat collecting plate 14, the second heat collecting plate is replaced with the fourth heat collecting plate 15, the radiation fin 16 is fixedly connected to one side of the third heat collecting plate 14, one side of the radiation fin 16 is fixedly connected to the fourth heat collecting plate 15, and the radiation fin 16 is the W-shaped plate.

The working principle is as follows: the first heat conducting sheet 4 and the second heat conducting sheet 9 are arranged, heat generated by the first surface plate 7, the second surface plate 12 and the core plate 1 can be led out, the first insulating layer 3 and the second insulating layer 8 are arranged to be heat conducting silica gel sheets, heat transfer is facilitated, the first heat collecting sheet 5 and the second heat collecting sheet 10 are arranged, the first heat collecting sheet 5 and the second heat collecting sheet 10 can be cooled through air cooling, and therefore heat dissipation can be conducted on the circuit board.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fine flexible line way board of two-sided embedded, includes core board (1) and mounting panel (2), its characterized in that: a first insulating layer (3) is arranged on the upper side of the core plate (1), a first heat-conducting fin (4) is fixedly connected to one side of the first insulating layer (3), one side of the first heat-conducting fin (4) is fixedly connected with a first heat-collecting fin (5), one side of the first heat-conducting fin (4) is fixedly connected with a first protective layer (6), one side of the first protective layer (6) is fixedly connected with a first surface layer plate (7), a second insulating layer (8) is arranged on the lower side of the core plate (1), a second heat-conducting fin (9) is fixedly connected with one side of the second insulating layer (8), one side of the second heat-conducting fin (9) is fixedly connected with a second heat-collecting fin (10), one side of the second heat-conducting fin (9) is fixedly connected with a second protective layer (11), one side of the second protective layer (11) is fixedly connected with a second surface layer plate (12), the first heat collecting sheet (5) and the second heat collecting sheet (10) are both W-shaped plates.

2. The double-sided embedded fine flexible circuit board according to claim 1, characterized in that: a fixing rod (13) is fixedly connected to the lower side of the first heat collecting sheet (5), and the lower end of the fixing rod (13) is fixedly connected to the upper side of the second heat collecting sheet (10).

3. The double-sided embedded fine flexible circuit board according to claim 2, characterized in that: different from the claim 2, the first heat collecting plate (5) is replaced by a third heat collecting plate (14), the second heat collecting plate is replaced by a fourth heat collecting plate (15), a radiating fin (16) is fixedly connected with one side of the third heat collecting plate (14), one side of the radiating fin (16) is fixedly connected with the fourth heat collecting plate (15), and the radiating fin (16) is a W-shaped plate.

4. The double-sided embedded fine flexible circuit board according to claim 1, characterized in that: the heat-conducting silica gel heat-insulating core plate is characterized in that the first insulating layer (3) and the second insulating layer (8) are both heat-conducting silica gel sheets, and one sides of the first insulating layer (3) and the second insulating layer (8) are both attached to the core plate (1).

5. The double-sided embedded fine flexible circuit board according to claim 1, characterized in that: the shape of first conducting strip (4) and second conducting strip (9) is the bar, first conducting strip (4) are at first insulating layer (3) one side equidistance distribution, second conducting strip (9) are at second insulating layer (8) one side equidistance distribution.

6. The double-sided embedded fine flexible circuit board according to claim 1, characterized in that: second surface plate (12) one side is laminated in mounting panel (2), mounting panel (2) are the flat panel.