CN217509112U

CN217509112U - FPC circuit board

Info

Publication number: CN217509112U
Application number: CN202221131582.3U
Authority: CN
Inventors: 杨锦喜
Original assignee: Heyuan Yaoguo Electronic Technology Co ltd
Current assignee: Heyuan Yaoguo Electronic Technology Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-09-27
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a FPC circuit board relates to circuit board technical field, including circuit board main part, circuit board main part top can be dismantled and be connected with the shield, the inserted bar is all installed to the four corners department of roof in the shield, circuit board main part top surface four corners department all installs the inserted block, the slot has been seted up to the inside of inserted block, the inserted bar is pegged graft in the inside of slot, the shield middle part is equipped with the gas vent, the internally mounted of gas vent has radiator fan, the all global and the equal cladding in bottom surface of circuit board main part have heat conduction insulation layer. The utility model discloses in, can derive the heat dissipation with the heat that produces when circuit board main part moves, and possess ventilation cooling and exhaust radiating function, improved the radiating efficiency, satisfy circuit board heat dissipation demand, the easy access personnel overhauls the circuit board simultaneously.

Description

FPC circuit board

Technical Field

The utility model relates to a circuit board technical field especially relates to a FPC circuit board.

Background

The FPC is also called a flexible circuit board, which is highly preferred because of its excellent characteristics such as light weight, thin thickness, free bending and folding, and is a printed circuit having high reliability and excellent flexibility, which is made of a mylar or polyimide substrate, and which is designed by embedding a circuit on a flexible light and thin plastic sheet, and thus, in order to prevent the mounted elements from being affected by dust, it is often necessary to perform a dust-proof treatment, but the dust-proof treatment of the conventional device is not easy to mount and dismount, and it is impossible to rapidly dissipate heat from the processing elements in a closed state.

The prior patent (publication number: CN211352946U) provides an FPC circuit board, including the circuit board main part, the both sides of circuit board main part all are glued and are equipped with the piece with the assembly, the assembly guide way has been seted up to the inside of assembly with the piece, the upper surface injection moulding of the inside of circuit board main part has fastening screw stand, the top sliding connection that the assembly adds the piece has dustproof heat dissipation backplate structure, dustproof heat dissipation backplate structure includes dustproof top cap, extend assembly wing backplate, the positioning assembly hole, cooperation clamping frame, radiator fan and the leading-in end that charges, the both ends stamping forming of dustproof top cap has extension assembly wing backplate, a plurality of positioning assembly holes have been seted up to the inside of dustproof top cap, the top and the bottom of positioning assembly hole all are blocked there is cooperation clamping frame. The utility model discloses an increase the dustproof heat dissipation backplate of loading and unloading of being convenient for on the circuit board for the device can reduce the ageing that dust contact circuit and components and parts brought, and can help main components and parts to carry out the cooling of dispelling the heat fast.

The circuit board has the following disadvantages when in use: dustproof top cap adopts bolted connection, has the problem of inconvenient dismantlement, and when needs overhauld the circuit board, the maintainer is not convenient for dismantle dustproof top cap, has reduced maintenance efficiency, and only dispels the heat through radiator fan, has the problem that the radiating efficiency is low, is difficult to satisfy circuit board heat dissipation demand. Therefore, we propose an FPC board to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a FPC circuit board has solved dustproof top cap and has adopted bolted connection, has the problem of inconvenient dismantlement, and when needs overhauld the circuit board, the maintainer is not convenient for dismantle dustproof top cap, has reduced maintenance efficiency, and only dispels the heat through radiator fan, has the problem that radiating efficiency hangs down, is difficult to satisfy the technical problem of circuit board heat dissipation demand.

For solving the technical problem, the utility model provides a pair of FPC circuit board, including circuit board main part, circuit board main part top can be dismantled and be connected with the shield, the inserted bar is all installed to the four corners department of roof in the shield, the inserted block is all installed to circuit board main part top surface four corners department, the slot has been seted up to the inside of inserted block, the inserted bar is pegged graft in the inside of slot, the shield middle part is equipped with the gas vent, the internally mounted of gas vent has radiator fan, the all global and the equal cladding in bottom surface of circuit board main part have heat insulating layer.

Preferably, the through grooves which are communicated with each other are formed in the front side wall and the rear side wall of the heat conduction insulating layer and the circuit board main body, the whole weight of the heat conduction insulating layer and the whole weight of the circuit board main body are reduced, the light weight design of the circuit board main body is realized, and the through grooves which are formed simultaneously can enable the ventilation effect of the heat conduction insulating layer and the circuit board main body to be better, facilitate air circulation and further play a ventilation and heat dissipation effect.

Preferably, the dust screen is fixedly mounted inside the exhaust port and arranged above the heat dissipation fan, so that a dust prevention effect is achieved, and dust is prevented from entering the exhaust port.

Preferably, the both sides at shield top all are equipped with the catching groove, two the catching groove sets up for the symmetry, and the maintainer of being convenient for stimulates the shield rebound, and then conveniently dismantles the shield.

Preferably, the cushion is installed to the inner wall of slot, the cushion is the rubber material, and the rubber material has certain elastic deformation ability, can extrude the inserted bar, prevents that the inserted bar from appearing the condition of rocking in the slot is inside, can increase the frictional force between inserted bar and the slot simultaneously, improves the stability that the inserted bar was pegged graft.

Preferably, the bottom fixed mounting of inserted bar has first magnet, the interior diapire fixed mounting of slot has the second magnet, first magnet attracts mutually with second magnet magnetism, and first magnet attracts with second magnet magnetism can improve the stability that inserted bar and inserted block are connected.

Preferably, a heat conduction silicone grease layer is arranged between the circuit board main body and the heat conduction insulating layer, the thickness of the heat conduction silicone grease layer is 0.2cm, the heat conduction silicone grease is commonly called as heat dissipation paste, organic silicone is used as a main raw material of the heat conduction silicone grease, and materials with excellent heat resistance and heat conduction performance are added to the heat conduction silicone grease, so that the heat generated during the operation of the circuit board main body can be conducted out for heat dissipation, and the stability of the electrical performance of the circuit board main body is ensured.

Preferably, the heat conducting insulating layer is fixed to the circuit board main body by bonding with an adhesive.

Compared with the prior art, the utility model provides a pair of FPC circuit board has following beneficial effect:

the utility model discloses in, heat insulating layer and heat conduction silicone grease layer through setting up play fine passive radiating effect, can derive the heat dissipation with the heat that the circuit board main part produced when moving, logical groove through setting up has alleviateed heat insulating layer and the whole weight of circuit board main part, the lightweight design of circuit board main part has been realized, logical groove of seting up simultaneously can make heat insulating layer and circuit board main part ventilation effect better, the circulation of air of being convenient for, and then play ventilation cooling's effect, can discharge circuit board main part heat fast through starting radiator fan, the radiating efficiency is improved, circuit board heat dissipation demand is satisfied.

The utility model discloses in, peg graft through the inserted bar and can fix the shield in the inside of slot, made things convenient for the installation of shield, the catching groove maintenance personnel pulling shield application of force through setting up on the shield makes things convenient for the dismantlement of shield, and then makes things convenient for the maintainer to overhaul the circuit board main part.

Drawings

FIG. 1 is a schematic structural diagram of an FPC board;

FIG. 2 is a schematic cross-sectional view of an FPC board;

FIG. 3 is a schematic structural diagram of a heat-conducting insulating layer in an FPC board;

fig. 4 is an enlarged view of the result at a in fig. 2.

Reference numbers in the figures: 1. a thermally conductive insulating layer; 2. a circuit board main body; 3. a thermally conductive silicone layer; 4. a through groove; 5. a dust cover; 6. buckling grooves; 7. an exhaust port; 8. a heat radiation fan; 9. a dust screen; 10. a rod is inserted; 11. inserting a block; 12. a slot; 13. a first magnet; 14. a second magnet.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used in the orientation or positional relationship indicated on the basis of the drawings, it is only for convenience of description and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the first embodiment, given by fig. 1-4, an FPC circuit board includes a circuit board

main body

2, 2 tops of the circuit board main body can be demounted and connected with a dust cover 5, four corners of the top wall in the dust cover 5 are all provided with an inserted bar 10, four corners of the top surface of the circuit board main body 2 are all provided with an inserted block 11, a slot 12 is provided inside the inserted block 11, the inserted bar 10 is inserted into the slot 12, the middle of the dust cover 5 is provided with an exhaust port 7, the inside of the exhaust port 7 is provided with a cooling fan 8, and the four peripheral surfaces and the bottom surface of the circuit board main body 2 are all coated with a heat conduction insulating layer 1.

Second, on the basis of first embodiment, the logical groove 4 that communicates each other is seted up to lateral wall and circuit board main part 2 inside around the heat conduction insulating layer 1, has alleviateed the whole weight of heat conduction insulating layer 1 and circuit board main part 2, has realized the lightweight design of circuit board main part 2, and logical groove 4 of seting up simultaneously can make heat conduction insulating layer 1 and circuit board main part 2 ventilation effect better, the circulation of air of being convenient for, and then plays ventilation cooling's effect.

In the third embodiment, the dust-proof net 9 is fixedly installed inside the air outlet 7, and the dust-proof net 9 is arranged above the heat-dissipating fan 8, so that the dust-proof effect is achieved, and the dust is prevented from entering.

Fourth embodiment, on the basis of first embodiment, the both sides at shield 5 top all are equipped with catching groove 6, and two catching grooves 6 set up for the symmetry, and the maintainer of being convenient for stimulates shield 5 and upwards removes, and then conveniently dismantles shield 5.

Fifth embodiment, on the basis of first embodiment, the inner wall of slot 12 is installed the cushion, and the cushion is the rubber material, and the rubber material has certain elasticity deformation ability, can extrude inserted bar 10, prevents that inserted bar 10 from the inside condition of rocking of appearing in slot 12, can increase the frictional force between inserted bar 10 and the slot 12 simultaneously, improves the stability that inserted bar 10 pegged graft.

Sixth embodiment, on the basis of first embodiment, the bottom of inserted bar 10 is fixedly installed with first magnet 13, and the interior diapire of slot 12 is fixedly installed with second magnet 14, and first magnet 13 attracts with second magnet 14 magnetism looks, and first magnet 13 attracts with second magnet 14 magnetism can improve the stability that inserted bar 10 and inserted block 11 are connected.

Seventh embodiment, on the basis of the first embodiment, a heat conductive silicone grease layer 3 is disposed between the circuit board main body 2 and the heat conductive insulating layer 1, the thickness of the heat conductive silicone grease layer 3 is 0.2cm, the heat conductive silicone grease is commonly called a heat dissipation paste, the heat conductive silicone grease uses organic silicone as a main raw material, and a material with excellent heat resistance and heat conductivity is added to the heat conductive silicone grease, so that the heat generated during the operation of the circuit board main body 2 can be conducted out for heat dissipation, thereby ensuring the stability of the electrical performance of the circuit board main body 2.

In the eighth embodiment, the heat conductive insulating layer 1 is fixed to the circuit board main body 2 by an adhesive.

The working principle is as follows: the heat conducting insulation layer 1 and the heat conducting silicone grease layer 3 are arranged to play a good passive heat dissipation effect, heat generated during operation of the circuit board main body 2 can be conducted out for heat dissipation, the overall weight of the heat conducting insulation layer 1 and the circuit board main body 2 is reduced through the arranged through grooves 4, the light-weight design of the circuit board main body 2 is realized, the through grooves 4 are arranged simultaneously, the ventilation effect of the heat conducting insulation layer 1 and the circuit board main body 2 is better, the ventilation effect is convenient, the ventilation and heat dissipation effects are further realized, the heat of the circuit board main body 2 can be rapidly discharged by starting the heat dissipation fan 8, the heat dissipation efficiency is improved, the heat dissipation requirement of the circuit board is met, the dust cover 5 is prevented from being adhered to the circuit board main body 2, the good dust prevention effect is realized, the aging caused by dust contacting circuits and components is reduced, the dust cover 5 can be fixed by inserting the inserting rods 10 into the inserting grooves 12, the installation of shield 5 has been made things convenient for, 6 the maintainer pulling shield 5 application of force through the catching groove that sets up on shield 5, make things convenient for the dismantlement of shield 5, and then make things convenient for the maintainer to overhaul circuit board main part 2, first magnet 13 and the 14 magnetism of second magnet through setting up are inhaled, can improve the stability that inserted bar 10 and inserted block 11 are connected, through the cushion that sets up at slot 12 inner wall, can extrude inserted bar 10, prevent that the condition that the inserted bar 10 rocked from appearing in slot 12 inside, can increase the frictional force between inserted bar 10 and the slot 12 simultaneously, improve the stability that inserted bar 10 pegged graft.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 FPC circuit board, includes circuit board main part (2), its characterized in that, circuit board main part (2) top can be dismantled and be connected with shield (5), inserted bar (10) are all installed to the four corners department of roof in shield (5), inserted block (11) are all installed to circuit board main part (2) top surface four corners department, slot (12) have been seted up to the inside of inserted block (11), inserted bar (10) are pegged graft in the inside of slot (12), shield (5) middle part is equipped with gas vent (7), the internally mounted of gas vent (7) has radiator fan (8), the all global and the bottom surface cladding of circuit board main part (2) have heat conduction insulating layer (1).

2. The FPC board according to claim 1, wherein the front and rear side walls of the heat-conducting insulating layer (1) and the inside of the circuit board main body (2) are provided with through slots (4) which are communicated with each other.

3. The FPC board according to claim 1, wherein a dust screen (9) is fixedly mounted inside the air outlet (7), and the dust screen (9) is disposed above the heat dissipation fan (8).

4. The FPC board according to claim 1, wherein two sides of the top of the dust cover (5) are provided with a slot (6), and the two slots (6) are symmetrically arranged.

5. The FPC board according to claim 1, wherein an elastic pad is mounted on an inner wall of the slot (12), and the elastic pad is made of rubber.

6. The FPC board according to claim 1, wherein a first magnet (13) is fixedly mounted at the bottom of the plug rod (10), a second magnet (14) is fixedly mounted at the inner bottom wall of the slot (12), and the first magnet (13) and the second magnet (14) are magnetically attracted to each other.

7. The FPC board according to claim 1, wherein a thermal grease layer (3) is disposed between the circuit board body (2) and the thermal insulation layer (1), and the thickness of the thermal grease layer (3) is 0.2 cm.

8. The FPC board according to claim 1, wherein the heat conductive insulating layer (1) is adhesively fixed to the board body (2) by an adhesive.