Heat-conducting flexible circuit board

Abstract

The utility model relates to the technical field of circuit boards, and discloses a heat-conducting flexible circuit board which comprises a circuit board body, a first adapter is arranged at the front end of the circuit board body, a second adapter is arranged at the rear end of the circuit board body, and a protection assembly is arranged in the middle of the outer end of the circuit board body. A heat dissipation assembly is arranged in the middle of the upper end of the protection assembly, and a heat conduction assembly is arranged on the left side of the heat dissipation assembly. According to the utility model, the upper protective shell and the lower protective shell are arranged to form the external protective shell, the external protective shell is clamped at the outer side of the circuit board body, when the circuit board body is folded in the installation process, the external protective shell moves along the outer side of the circuit board body, and after the external protective shell is moved to the folding part, the circuit board body is folded. When the circuit board is folded, an inward acting force is generated through the internal limiting pad and the elastic band and abuts against the folding part of the circuit board body, so that the circuit board body is kept in a bent shape with a slow radian, the circuit board body is prevented from being folded, and the protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a heat-conducting flexible circuit board. Background Art

[0002] Flexible printed circuit board, also known as "soft board", is a printed circuit made of flexible insulating substrate. Compared with printed circuit boards, it can be bent, wound, and folded freely. It can withstand millions of dynamic bendings without damaging the wires. It can be arranged arbitrarily according to spatial layout requirements and moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection.

[0003] A flexible circuit board with a novel heat dissipation structure disclosed in the Chinese utility model patent application disclosure CN220326134U transfers heat out from multiple directions of the adapter through a group of aluminum brackets, a first heat conducting rod, a second heat conducting rod, a heat conducting silicone sheet and transverse heat dissipation holes, and the multi-directional heat conducting structure enables the conductive connector to achieve heat dissipation and cooling faster. Although the conductive connector can be cooled faster, in actual use, the flexible circuit board body lacks a protective structure, which may cause the circuit board body to fold. In this case, when the power is turned on, the temperature of the folded part will be significantly higher than that of other areas. The heat dissipated by its own microporous heat dissipation structure is limited. If it works for a long time, it is easy to burn the internal structure of the circuit board. Therefore, it is necessary to provide a heat-conductive flexible circuit board to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a thermally conductive flexible circuit board, which solves the problem in the above background technology that the circuit board body lacks a protective structure, the temperature of the folded part is easily too high, and the internal structure is burned.

[0006] (II) Technical solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a thermally conductive flexible circuit board, comprising a circuit board body, a first adapter is provided at the front end of the circuit board body, a second adapter is provided at the rear end of the circuit board body, a protective component is provided in the middle of the outer end of the circuit board body, a heat dissipation component is provided in the middle of the upper end of the protective component, a heat conduction component is provided on the left side of the heat dissipation component, a limiting pad is provided at the lower part of the inside of the protective component, an elastic band is provided above the limiting pad, a graphite heat conduction sheet is provided above the elastic band, and a clamping sheet is provided in the middle of the inner side of the protective component;

[0008] The protective assembly includes an upper protective shell, a lower protective shell, a connection kit and a buckle plate. The lower protective shell is provided below the upper protective shell, a connection kit is provided on the left side of the upper and lower ends of the protective shell, and a buckle plate is provided on the right end of the upper protective shell.

[0009] Optionally, the heat dissipation assembly includes an arc-shaped shell, a heat dissipation fan and an air flow groove, the heat dissipation fan is provided in the middle of the upper end of the arc-shaped shell, and the air flow groove is opened on the right side of the outer end of the arc-shaped shell.

[0010] Optionally, the heat conduction component includes a fixed connection block, a mounting frame, heat dissipation fins, an aluminum frame and a circulation pipeline, the right end of the fixed connection block is provided with a mounting frame, the upper end of the mounting frame is provided with heat dissipation fins, the lower part of the mounting frame is provided with an aluminum frame, and the circulation pipeline is provided on the left side of the outer end of the aluminum frame.

[0011] Optionally, there are two symmetrically distributed limiting pads and two symmetrically distributed elastic bands.

[0012] Optionally, the graphite heat conductive sheets are symmetrically distributed, and heat conductive glue is applied between the graphite heat conductive sheets and the circuit board body.

[0013] Optionally, the clamping piece is clamped and installed on the left and right sides of the outer end of the circuit board body, and the clamping piece and the protective component are reinforced by glue.

[0014] Optionally, the connection kit is reinforced with screws between the upper and lower parts of the protective shell, and the snap-on plate consists of two parts, which are snap-fastened to each other. The upper part of the snap-on plate is an integrated structure with the upper part of the protective shell, and the lower part of the snap-on plate is an integrated structure with the lower part of the protective shell.

[0015] Optionally, the arc-shaped shells are symmetrically distributed, the heat dissipation fans are laterally distributed at the top of the arc-shaped shells, and the air flow slots are symmetrically distributed.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] 1. The utility model has a reasonable structure. An external protective shell is formed by setting an upper protective shell and a lower protective shell, which is clamped on the outside of the circuit board body. When the circuit board body is folded during installation, the clamping piece and the two sides of the outer end of the circuit board body form a clamping installation structure, so that the external protective shell can be moved along the outside of the circuit board body. After it is moved to the folding position, an inward force is generated by the internal limit pad and the elastic band to press against the folding position of the circuit board body, so that it can be kept in a curved shape with a gentle arc, thereby preventing the circuit board body from folding.

[0018] 2. In the utility model, the cooling fan is set to start working, and the airflow in the internal cavity is extracted. At the same time, the reduction of the internal airflow will also drive the external airflow to enter the interior through the airflow groove, so as to realize the internal and external circulation of the airflow, and timely discharge the heat generated by the bending part of the circuit board body, so as to ensure its stability during operation.

[0019] 3. In the utility model, the graphite heat conductive sheet is provided, so that the heat generated by the normal operation of the circuit board body can be timely transferred to the upper aluminum frame, and the heat is absorbed by the medium in the internal cooling pipeline. The medium is then transported to the upper installation frame through the circulation pipeline and cooled by the heat dissipation fins. The whole process is similar to that of a small condensing device, thereby reducing the problem of excessive temperature of the circuit board body and protecting the circuit board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the planar structure of the utility model from a top view;

[0021] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the protection component and the heat dissipation component of the utility model;

[0023] Figure 4 It is a schematic diagram of the planar structure of the heat conducting component of the utility model.

[0024] In the figure: 1. circuit board body; 2. adapter 1; 3. adapter 2; 4. protection assembly; 5. heat dissipation assembly; 6. thermal conductive assembly; 7. limit pad; 8. elastic band; 9. graphite thermal conductive sheet; 10. clamping sheet; 401. upper protective shell; 402. lower protective shell; 403. connection kit; 404. snap-on plate; 501. arc shell; 502. cooling fan; 503. air flow groove; 601. fixed connection block; 602. mounting frame; 603. heat dissipation fins; 604. aluminum frame; 605. circulation pipeline. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: Reference Figure 1-Figure 4A thermally conductive flexible circuit board shown in the figure comprises a circuit board body 1, an adapter 1 2 is mounted on the front end of the circuit board body 1, an adapter 2 3 is mounted on the rear end of the circuit board body 1, a protective component 4 is mounted on the middle of the outer end of the circuit board body 1, a heat dissipation component 5 is embedded in the middle of the upper end of the protective component 4, a thermal conductive component 6 is mounted on the left side of the heat dissipation component 5, a limiting pad 7 is mounted on the lower part of the interior of the protective component 4, two limiting pads 7 are symmetrically distributed, an elastic band 8 is screwed on the upper part of the limiting pad 7, two elastic bands 8 are symmetrically distributed, a graphite thermal conductive sheet 9 is fitted on the upper part of the elastic band 8, the graphite thermal conductive sheets 9 are symmetrically distributed, and thermal conductive glue is applied between the graphite thermal conductive sheets 9 and the circuit board body 1, a clamping sheet 10 is fitted on the middle part of the inner side of the protective component 4, and glue is used to glue and reinforce it later, and the clamping sheet 10 forms a clamping structure with the left and right sides of the outer end of the circuit board body 1; the protective component 4 includes an upper protective shell 401, a lower protective shell 402, a connecting kit 403 and a buckle plate 404, and the lower protective shell 402 is installed on the lower part of the upper protective shell 401, and the two can form a protective shell, and because it is made of soft rubber material, it can be deformed into an arc, and the left screw of the lower end of the upper protective shell 401 is installed with a connecting kit 403, and the connecting kit 403 is reinforced with the upper protective shell 401 and the lower protective shell 402 by screws, and the right end of the upper protective shell 401 is provided with a buckle plate 404, which is composed of an upper and lower part, which are buckled and fixed to each other, and the upper part of the buckle plate 404 is an integrated structure with the upper protective shell 401, and the lower part of the buckle plate 404 is an integrated structure with the lower protective shell 402.

[0027] By setting the upper protective shell 401 and the lower protective shell 402, an external protective shell is formed, which is clamped on the outside of the circuit board body 1. When the circuit board body 1 is folded during the installation process, since the clamping piece 10 and the two sides of the outer end of the circuit board body 1 form a clamping installation structure, the external protective shell can be moved along the outside of the circuit board body 1. After it is moved to the folded position, an inward force is generated by the internal limit pad 7 and the elastic band 8, which presses against the folded position of the circuit board body 1 to keep it in a curved shape with a gentle arc, thereby protecting the circuit board body 1.

[0028] As an optional implementation in this embodiment, Figure 2 and Figure 3 As shown, the heat dissipation assembly 5 includes an arc-shaped shell 501, a heat dissipation fan 502 and an air flow slot 503. The arc-shaped shell 501 is symmetrically distributed. The heat dissipation fan 502 is embedded and installed in the middle of the upper end of the arc-shaped shell 501. In addition, a plurality of heat dissipation fans 502 are horizontally distributed on the top of the arc-shaped shell 501. The air flow slot 503 is opened on the right side of the outer end of the arc-shaped shell 501. The air flow slots 503 are symmetrically distributed.

[0029] When the bending part of the circuit board body 1 is overheated, the cooling fan 502 starts to work to extract the airflow in the internal cavity. At the same time, the reduction of the internal airflow will also drive the external airflow to enter the interior through the airflow groove 503, realizing the internal and external circulation of the airflow, and discharging the heat generated by the bending part of the circuit board body 1 in time to ensure its stability during operation.

[0030] like Figure 3 and Figure 4 As shown, in this embodiment, the heat conduction component 6 includes a fixed connection block 601, a mounting frame 602, a heat dissipation fin 603, an aluminum frame 604 and a circulation pipeline 605. The fixed connection blocks 601 are symmetrically distributed. The right end of the fixed connection block 601 is clamped and installed with the mounting frame 602, the upper end of the mounting frame 602 is clamped and installed with the heat dissipation fin 603, and the lower end of the mounting frame 602 is clamped and installed with the aluminum frame 604. The inner sides of the mounting frame 602 and the aluminum frame 604 are both laid with cooling pipelines, and the left side of the outer end of the aluminum frame 604 is connected and installed with a circulation pipeline 605, and the circulation pipeline 605 is connected with the cooling pipelines in the mounting frame 602 and the aluminum frame 604;

[0031] When the circuit board body 1 is overheated, the graphite heat conductive sheet 9 can conduct the heat to the upper aluminum frame 604 in time, and the medium in the internal cooling pipeline absorbs the heat. The medium is then transported to the upper mounting frame 602 through the circulation pipeline 605 and cooled by the heat dissipation fins 603. The entire process is similar to that of a small condensing device, thereby reducing the problem of excessive temperature of the circuit board body 1.

[0032] Working principle of the utility model: the heat-conducting flexible circuit board forms an external protective shell by setting the upper protective shell 401 and the lower protective shell 402, which is clamped on the outside of the circuit board body 1. When the circuit board body 1 is folded during the installation process, the clamping piece 10 and the two sides of the outer end of the circuit board body 1 form a clamping installation structure, so that the external protective shell can be moved along the outside of the circuit board body 1. After it is moved to the folded position, an inward force is generated by the internal limit pad 7 and the elastic band 8, which presses against the folded part of the circuit board body 1 to keep it in a curved shape with a gentle arc. When the curved part of the circuit board body 1 is overheated, the cooling fan 502 starts to work. The airflow in the internal cavity is extracted. At the same time, the reduction of the internal airflow will also drive the external airflow to enter the interior through the airflow groove 503, so as to realize the internal and external circulation of the airflow, and timely discharge the heat generated by the bending part of the circuit board body 1 to ensure its stability during operation. In addition, through the provided graphite heat conductive sheet 9, the heat generated by the normal operation of the circuit board body 1 can be timely conducted to the upper aluminum frame 604, and the heat is absorbed by the medium in the internal cooling pipeline, and then the medium is transported to the upper installation frame 602 through the circulation pipeline 605, and cooled by the heat dissipation fins 603. The whole process is similar to that of a small condensing device, so as to reduce the problem of excessive temperature of the circuit board body 1 and protect the circuit board body 1.

[0033] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A thermally conductive flexible circuit board, comprising a circuit board body (1), characterized in that: The front end of the circuit board body (1) is provided with an adapter 1 (2), the rear end of the circuit board body (1) is provided with an adapter 2 (3), the middle of the outer end of the circuit board body (1) is provided with a protective component (4), the middle of the upper end of the protective component (4) is provided with a heat dissipation component (5), the left side of the heat dissipation component (5) is provided with a heat conduction component (6), the lower part of the inside of the protective component (4) is provided with a limit pad (7), the upper part of the limit pad (7) is provided with an elastic band (8), the upper part of the elastic band (8) is provided with a graphite heat conduction sheet (9), and the middle part of the inner side of the protective component (4) is provided with a clamping sheet (10); The protective assembly (4) comprises an upper protective shell (401), a lower protective shell (402), a connection kit (403) and a buckle plate (404); the lower protective shell (402) is provided below the upper protective shell (401); the connection kit (403) is provided on the left side of the lower end of the upper protective shell (401); and the buckle plate (404) is provided on the right end of the upper protective shell (401).

2. A thermally conductive flexible circuit board according to claim 1, characterized in that: The heat dissipation assembly (5) comprises an arc-shaped shell (501), a heat dissipation fan (502) and an air flow groove (503); the heat dissipation fan (502) is provided in the middle of the upper end of the arc-shaped shell (501), and the air flow groove (503) is provided on the right side of the outer end of the arc-shaped shell (501).

3. The thermally conductive flexible circuit board according to claim 1, characterized in that: The heat conduction component (6) comprises a fixed connection block (601), a mounting frame (602), heat dissipation fins (603), an aluminum frame (604) and a circulation pipeline (605); the mounting frame (602) is provided at the right end of the fixed connection block (601); the heat dissipation fins (603) are provided at the upper end of the mounting frame (602); the aluminum frame (604) is provided below the mounting frame (602); and the circulation pipeline (605) is provided on the left side of the outer end of the aluminum frame (604).

4. The thermally conductive flexible circuit board according to claim 1, characterized in that: The limiting pads (7) are symmetrically distributed in two pieces, and the elastic bands (8) are symmetrically distributed in two pieces.

5. The thermally conductive flexible circuit board according to claim 1, characterized in that: The graphite heat conducting sheets (9) are symmetrically distributed, and heat conducting glue is applied between the graphite heat conducting sheets (9) and the circuit board body (1).

6. The thermally conductive flexible circuit board according to claim 1, characterized in that: The clamping piece (10) is clamped and installed on the left and right sides of the outer end of the circuit board body (1), and the clamping piece (10) and the protective component (4) are glued and reinforced.

7. The thermally conductive flexible circuit board according to claim 1, characterized in that: The connection kit (403) is reinforced with the upper protective shell (401) and the lower protective shell (402) by screws, and the buckle plate (404) is composed of an upper and lower part, which are snap-fastened to each other, and the upper part of the buckle plate (404) is an integrated structure with the upper protective shell (401), and the lower part of the buckle plate (404) is an integrated structure with the lower protective shell (402).

8. The thermally conductive flexible circuit board according to claim 2, characterized in that: The arc-shaped shell (501) is symmetrically distributed, the heat dissipation fan (502) is horizontally distributed at the top of the arc-shaped shell (501), and the air flow grooves (503) are symmetrically distributed.

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