CN220273926U

CN220273926U - FPC flexible circuit board capable of preventing moisture

Info

Publication number: CN220273926U
Application number: CN202320669721.6U
Authority: CN
Inventors: 欧柱文
Original assignee: Dongguan Weiguangjun Electronic Tech Co ltd
Current assignee: Dongguan Weiguangjun Electronic Tech Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-12-29
Anticipated expiration: 2033-03-30

Abstract

The utility model relates to the technical field of circuit boards, and provides an FPC flexible circuit board capable of preventing dampness, which comprises a circuit board body, SCA grooves and mounting holes, wherein the mounting holes are formed in corner positions inside the circuit board body, the SCA grooves are formed in edge positions on one side inside the circuit board body, a heat dissipation structure is arranged at the top end of the circuit board body, the heat dissipation structure comprises a heat dissipation seat, a heat dissipation cavity, a motor, a connecting rod, a fixing bolt and fan blades, and the heat dissipation seat is arranged at the top end of the circuit board body. According to the utility model, the heat radiation structure is arranged, the heat radiation seat is arranged at the top end of the circuit board body through the fixing bolt, the motor is started, and the motor drives the fan blade to rotate, so that the air flow rate at the top end of the circuit board body is accelerated, the heat radiation speed of the device is further accelerated, the function of facilitating heat radiation of the device is realized, and the convenience of the FPC flexible circuit board for preventing damp is improved in use.

Description

FPC flexible circuit board capable of preventing moisture

Technical Field

The utility model relates to the technical field of circuit boards, in particular to an FPC flexible circuit board capable of preventing moisture.

Background

The flexible printed circuit board is made of polyimide or polyester film as a base material, has high reliability, and is excellent in flexibility, and if the waterproof function of equipment is poor in the use process of the circuit board, water vapor can enter the circuit board, so that the service life of the circuit board is greatly reduced, and the FPC flexible circuit board capable of preventing from being wetted can be used;

for this reason, the patent with publication number CN209693161U discloses a socket soldering FPC flexible circuit board, which comprises an FPC flexible substrate, a plurality of conductive lines are printed on the surface of the FPC flexible substrate, a plurality of socket pieces are transversely connected and arranged on the surface of the FPC flexible substrate, one end of each socket piece is provided with a soldering hole, the socket pieces are arranged in a groove of the PCB circuit board and are tightly attached to the bottom surface of the groove by using adhesive, and the surface of the PCB circuit board is provided with a positive electrode, a negative electrode and a positioning soldering point and is electrically connected with the soldering holes by soldering respectively; the connecting insert is fixedly connected with the groove of the PCB, is not easy to fall off, is provided with a welding hole, is fixedly installed with the positive electrode, the negative electrode and the welding point of the PCB, is accurate and firm in welding positioning, has good conductivity and toughness of the copper foil, can be flexibly welded with the PCB according to actual circuit diagrams, and further forms different circuit wiring, and is reliable in electric connection and good in quality effect;

the flexible printed circuit board of the FPC is inconvenient to radiate, and the circuit board is damaged due to the fact that the heat generated by the circuit board is too high in the using process, so that the service life of the circuit board is shortened, and the applicability of the circuit board is low in the using process.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a moisture-proof FPC flexible circuit board, which is used for solving the defect that the conventional moisture-proof FPC flexible circuit board is inconvenient to dissipate heat.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the FPC flexible circuit board capable of preventing moisture comprises a circuit board body, SCA grooves and mounting holes, wherein the mounting holes are formed in corner positions inside the circuit board body, and the SCA grooves are formed in edge positions on one side inside the circuit board body;

a heat dissipation structure is arranged at the top end of the circuit board body;

the bottom end of the circuit board body is fixed with a protective structure.

Preferably, the heat radiation structure includes heat radiation seat, heat radiation chamber, motor, connecting rod, fixing bolt and flabellum, the heat radiation seat sets up in the top of circuit board body, the inside of heat radiation seat is provided with the heat radiation chamber, the intermediate position department at heat radiation chamber top is provided with the motor, evenly be fixed with the connecting rod on the outer wall of motor, the output of motor is fixed with the flabellum, the edge position department at heat radiation seat top evenly is provided with fixing bolt.

Preferably, one end of the connecting rod is fixedly connected with the inner wall of the heat dissipation seat, and the bottom ends of the fixing bolts are extended to the inside of the circuit board body.

Preferably, the fan blade is located above the circuit board body, and the fixing bolt and the circuit board body are in threaded connection.

Preferably, the protection structure comprises an adhesive layer, a moisture-proof layer and an antistatic layer, wherein the adhesive layer is fixed at the bottom end of the circuit board body, the moisture-proof layer is fixed at the bottom end of the adhesive layer, and the antistatic layer is fixed at the bottom end of the moisture-proof layer.

Preferably, the moisture-proof layer is actually a waterproof glue layer, and the antistatic layer is actually a polyoxyethylene layer.

Preferably, the bottom ends of the SCA slot and the mounting hole extend to the inside of the antistatic layer, and the top cross section of the SCA slot is in a trapezoid design.

(III) beneficial effects

The FPC flexible circuit board for preventing moisture, provided by the utility model, has the advantages that:

through being provided with the heat radiation structure, install the heat dissipation seat on the top of circuit board body through fixing bolt, start the motor, the motor can drive the flabellum and rotate for the air velocity on circuit board body top, and then accelerated the heat dissipation speed of the device, realized the device and be convenient for radiating function, thereby improved the convenience when using of this FPC flexible circuit board that prevents to damp;

through being provided with protective structure, the dampproof course is waterproof glue film in fact, has dampproofing and waterproofing's function, antistatic layer is polyoxyethylene layer in fact, has antistatic function to this FPC flexible circuit board's that prevents to wet life has been prolonged.

Through being provided with the SCA fluting, the SCA fluting sets up in the edge position department of the inside one side of circuit board body, has isolated the inside that air moisture got into the circuit board body, avoids causing the product to be little short, has promoted the yield, has strengthened the leakproofness of device to the suitability of this FPC flexible circuit board that prevents to wet when using has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic side sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 5 is a schematic view of a three-dimensional explosive structure of the protective structure according to the present utility model.

Reference numerals in the drawings illustrate: 1. a circuit board body; 2. a heat dissipation structure; 201. a heat dissipation seat; 202. a heat dissipation cavity; 203. a motor; 204. a connecting rod; 205. a fixing bolt; 206. a fan blade; 3. a protective structure; 301. an adhesive layer; 302. a moisture barrier; 303. an antistatic layer; 4. SCA slotting; 5. and (5) mounting holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-5, the FPC flexible circuit board for preventing dampness provided by the utility model comprises a circuit board body 1, a SCA slot 4 and a mounting hole 5, wherein the mounting hole 5 is formed at the corner position inside the circuit board body 1, the SCA slot 4 is formed at the edge position of one side inside the circuit board body 1, a heat dissipation structure 2 is mounted at the top end of the circuit board body 1, the heat dissipation structure 2 comprises a heat dissipation seat 201, a heat dissipation cavity 202, a motor 203, a connecting rod 204, a fixing bolt 205 and a fan blade 206, the heat dissipation seat 201 is arranged at the top end of the circuit board body 1, the heat dissipation cavity 202 is arranged inside the heat dissipation seat 201, the motor 203 is arranged at the middle position of the top of the heat dissipation cavity 202, a connecting rod 204 is uniformly fixed on the outer wall of the motor 203, the fan blade 206 is fixed at the output end of the top end of the motor 203, the fixing bolt 205 is uniformly arranged at the edge position of the top end of the heat dissipation seat 201, one end of the connecting rod 204 is fixedly connected with the inner wall of the heat dissipation seat 201, the bottom end of the fixing bolt 205 extends to the inside the circuit board body 1, the fan blade 206 is positioned above the circuit board body 1, and the fixing bolt 205 is in threaded connection with the circuit board body 1.

In this embodiment, install the heat dissipation seat 201 on the top of circuit board body 1 through fixing bolt 205, start motor 203, motor 203 can drive the flabellum 206 and rotate for the air velocity on circuit board body 1 top, and then accelerated the heat dissipation rate of device, SCA fluting 4 sets up in the inside marginal position department of one side of circuit board body 1, has isolated the inside that air moisture got into circuit board body 1, avoids causing the product to be little short, promotes the yield, has strengthened the leakproofness of device.

Example two

The embodiment further includes: the bottom end mounting of circuit board body 1 has protective structure 3, protective structure 3 includes adhesive layer 301, dampproof course 302 and antistatic backing 303, the adhesive layer 301 is fixed in the bottom of circuit board body 1, the bottom mounting of adhesive layer 301 has dampproof course 302, the bottom mounting of dampproof course 302 has antistatic backing 303, dampproof course 302 is waterproof glue film in fact, antistatic backing 303 is polyoxyethylene layer in fact, the bottom of SCA fluting 4 and mounting hole 5 all extends to antistatic backing 303's inside, the overlooking cross-section of SCA fluting 4 is trapezoidal design.

In this embodiment, the moisture-proof layer 302 is actually a waterproof glue layer, has a waterproof and dampproof function, and the antistatic layer 303 is actually a polyoxyethylene layer, and has an antistatic function.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a prevent FPC flexible circuit board who wets, includes circuit board body (1), SCA fluting (4) and mounting hole (5), its characterized in that: mounting holes (5) are formed in corner positions inside the circuit board body (1), and SCA grooves (4) are formed in edge positions on one side inside the circuit board body (1);

the circuit board comprises a circuit board body (1), and is characterized in that a heat dissipation structure (2) is arranged at the top end of the circuit board body (1), the heat dissipation structure (2) comprises a heat dissipation seat (201), a heat dissipation cavity (202), a motor (203), a connecting rod (204), a fixing bolt (205) and fan blades (206), the heat dissipation seat (201) is arranged at the top end of the circuit board body (1), the heat dissipation cavity (202) is arranged in the heat dissipation seat (201), the motor (203) is arranged at the middle position of the top of the heat dissipation cavity (202), the connecting rod (204) is uniformly fixed on the outer wall of the motor (203), the fan blades (206) are fixed at the output end of the motor (203), and fixing bolts (205) are uniformly arranged at the edge position of the top end of the heat dissipation seat (201).

The bottom end fixing of circuit board body (1) has protective structure (3), protective structure (3) are including bond line (301), dampproof course (302) and antistatic backing (303), bond line (301) are fixed in the bottom of circuit board body (1), the bottom end fixing of bond line (301) has dampproof course (302), the bottom end fixing of dampproof course (302) has antistatic backing (303).

2. The moisture resistant FPC flexible circuit board according to claim 1, wherein: one end of each connecting rod (204) is fixedly connected with the inner wall of the heat dissipation seat (201), and the bottom ends of the fixing bolts (205) extend to the inside of the circuit board body (1).

3. The moisture resistant FPC flexible circuit board according to claim 1, wherein: the fan blade (206) is located above the circuit board body (1), and the fixing bolt (205) and the circuit board body (1) are in threaded connection.

4. The moisture resistant FPC flexible circuit board according to claim 1, wherein: the moisture-proof layer (302) is actually a waterproof glue layer, and the antistatic layer (303) is actually a polyoxyethylene layer.

5. The moisture resistant FPC flexible circuit board according to claim 1, wherein:

the bottom ends of the SCA grooves (4) and the mounting holes (5) extend to the inside of the antistatic layer (303),

the overlooking section of the SCA slot (4) is of a trapezoid design.