Foldable flexible circuit board

By designing a foldable flexible circuit board, the folding and fixing is achieved using a fixed outer frame and magnetic suction structure, and the folding and heat dissipation problems of the flexible circuit board are solved, making it convenient and efficient heat dissipation, and extending the service life of the circuit board.

CN223080193UActive Publication Date: 2025-07-08SHEN ZHEN WAN JI LONG DIAN ZI KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202421574719.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-04
Publication Date
2025-07-08
Estimated Expiration
2034-07-04

AI Technical Summary

Technical Problem

Traditional flexible circuit boards do not have foldability and are easily damaged by excessive bending. They are not easily dissipated during operation and affect performance and life.

Method used

A foldable flexible circuit board is designed to be folded and fixed by fixing the outer frame and magnetic suction structure, and is equipped with cooling components such as semiconductor refrigeration plates and heat dissipation plates for heat dissipation.

Benefits of technology

It realizes convenient folding and protection of flexible circuit boards, prevents damage, and effectively dissipates heat, extends service life and improves performance stability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223080193U_ABST
    Figure CN223080193U_ABST
Patent Text Reader

Abstract

The utility model discloses a foldable flexible circuit board, comprising a flexible circuit board main body which is provided with a connecting line and is connected with external equipment through the connecting line; the fixed outer frames are arranged on the two sides of the flexible circuit board main body, and the flexible circuit board main body is protected through the fixed outer frames; a magnetic attraction structure is arranged on one surface of the fixed outer frame; the cooling assembly is arranged on the other surface of the fixed outer frame, and the cooling end of the cooling assembly is in contact with the flexible circuit board main body; due to the fact that the flexible circuit board body is flexible, when the flexible circuit board body is folded, the fixing outer frames attract each other through the magnetic attraction structures, and then the flexible circuit board is folded and fixed. According to the utility model, the flexible circuit board main body is flexible and can be folded conveniently, so that greater flexibility and convenience can be provided for portable electronic equipment or electronic applications needing to save space.
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Description

Technical Field

[0001] The utility model relates to a flexible circuit board, in particular to a foldable flexible circuit board. Background Art

[0002] A flexible circuit board, usually called a flexible printed circuit (FPC), is an electronic circuit board that can be bent or flexible; traditional circuit boards usually do not have foldability, which is not convenient for scenarios that require flexible application; without proper protection, flexible circuit boards are easily damaged due to excessive bending; electronic devices generate heat during operation, and if not dissipated in time, it may cause the circuit board to overheat, affecting performance and lifespan. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a foldable flexible circuit board to solve the problems existing in the background art.

[0004] The foldable flexible circuit board of the utility model is realized through the following technical solutions, including:

[0005] A flexible circuit board body, on which a connecting wire is arranged and connected to an external device through the connecting wire;

[0006] A fixed outer frame, which is arranged on both sides of the flexible circuit board body to protect the flexible circuit board body through the fixed outer frame; a magnetic attraction structure is arranged on one side of the fixed outer frame;

[0007] A cooling component, which is arranged on the other side of the fixed outer frame, and the cooling end of the cooling component is in contact with the flexible circuit board body;

[0008] Since the flexible circuit board body is flexible, when the flexible circuit board body is folded, the fixed outer frames are adsorbed to each other through the magnetic attraction structure, thereby folding and fixing the flexible circuit board.

[0009] As a preferred technical solution, fixing grooves are arranged on the inner sides of the fixed outer frame, and both ends of the flexible circuit board body are installed in the fixing grooves, thereby realizing the installation of the flexible circuit board body;

[0010] A slot structure is arranged on the inner side of the lower end of the fixed outer frame, and the cooling component is installed in the fixed outer frame through the slot structure, and the flexible circuit board body is cooled through the cooling component.

[0011] As a preferred technical solution, the cooling component includes a thermoelectric cooler and a heat dissipation plate;

[0012] The cooling end of the thermoelectric cooler is in contact with the flexible circuit board body, and the heating end of the thermoelectric cooler is connected to the heat dissipation plate; the thermoelectric cooler is connected to the fixed outer frame through the slot structure.

[0013] As a preferred technical solution, the slot structure includes a fixed slot disposed on the inner side of the fixed outer frame and an insertion block disposed outside the semiconductor refrigeration sheet;

[0014] The insertion block is inserted into the fixed slot of the fixed outer frame, thereby realizing the connection between the cooling component and the fixed outer frame.

[0015] As a preferred technical solution, the magnetic attraction structure includes a magnet disposed on the fixed outer frame, and the fixed outer frames are connected by magnetic attraction.

[0016] As a preferred technical solution, heat dissipation fins are provided on the heat dissipation plate, and the flexible circuit board body is dissipated heat through the heat dissipation fins.

[0017] As a preferred technical solution, the fixed outer frame is made of a heat-insulating material.

[0018] The beneficial effects of the present utility model are:

[0019] 1. Since the flexible circuit board body of the present utility model is flexible, it can be conveniently folded, which can provide greater flexibility and convenience for portable electronic devices or electronic applications that require space saving.

[0020] 2. The present utility model not only provides protection for the flexible circuit board through the fixed outer frame, but also, when folding, through the design of the magnetic attraction structure, can keep the circuit board fixed in the required state to prevent damage due to excessive folding.

[0021] 3. The present utility model can effectively conduct and dissipate the heat generated by the circuit board during operation, maintain the operating temperature of the circuit board, extend its service life and improve performance stability.

[0022] 4. Through the fixed groove and slot structure of the present utility model, users can easily install and fix the flexible circuit board and the cooling component, improving the convenience of maintenance and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 and Figure 2 is a three-dimensional structural schematic diagram of the present utility model;

[0025] Figure 3Schematic diagram of the folding structure of the present utility model;

[0026] Figure 4 Exploded structure diagram of the present utility model;

[0027] Figure 5 Connection diagram of the present utility model.

[0028] Explanation of reference numerals:

[0029] 1. Flexible circuit board main body; 2. Fixed outer frame; 3. Cooling component; 4. Connecting wire; 5. Fixed groove; 6. Semiconductor refrigeration sheet; 7. Heat dissipation plate; 8. Fixed slot; 9. Insert block; 10. Magnet; 11. Heat dissipation fin. Detailed implementation manners

[0030] All features disclosed in this specification, or all steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0031] As Figures 1-5 shown, a foldable flexible circuit board of the present utility model includes:

[0032] Flexible circuit board main body 1, on which a connecting wire 4 is arranged and is connected to an external device through the connecting wire 4;

[0033] Fixed outer frame 2, which is arranged on both sides of the flexible circuit board main body 1 to protect the flexible circuit board main body through the fixed outer frame 2; on one side of the fixed outer frame 2, a magnetic attraction structure is arranged, and the magnetic attraction structure enables the fixed outer frames to adsorb each other when folding, which not only maintains the folded state but also reduces damage that may be caused by external elements;

[0034] Cooling component 3, which is arranged on the other side of the fixed outer frame 2, and the cooling end of the cooling component 3 is in contact with the flexible circuit board main body 1 to transfer heat from the flexible circuit board main body to the heat dissipation structure, thereby reducing the temperature and prolonging the service life of the circuit;

[0035] Since the flexible circuit board main body 1 is flexible, when the flexible circuit board main body 1 folds, the fixed outer frames 2 adsorb each other through the magnetic attraction structure, thereby folding and fixing the flexible circuit board.

[0036] In this embodiment, fixed grooves 5 are arranged on the inner sides of the fixed outer frame 2, and both ends of the flexible circuit board main body 1 are installed in the fixed grooves 5, thereby realizing the installation of the flexible circuit board main body 1,

[0037] A slot structure is arranged on the inner side of the lower end of the fixed outer frame 2, and the cooling component 3 is installed in the fixed outer frame 2 through the slot structure, and the cooling of the flexible circuit board main body is realized through the cooling component 3;

[0038] It ensures a firm connection between the thermoelectric cooler and the fixed outer frame; such a design also simplifies the assembly process, making maintenance and upgrading more convenient.

[0039] In addition, the cooling assembly 3 includes a thermoelectric cooler 6 and a heat sink 7;

[0040] The cooling end of the thermoelectric cooler 6 is in contact with the flexible circuit board body 1, and the heating end of the thermoelectric cooler 6 is connected to the heat sink; the thermoelectric cooler 6 is connected to the fixed outer frame 2 through a slot structure.

[0041] Among them, the slot structure includes a fixed slot 8 provided on the inner side of the fixed outer frame 2 and a plug 9 provided on the outside of the thermoelectric cooler 6;

[0042] The plug 9 is inserted into the fixed slot 8 provided in the fixed outer frame 2, thereby realizing the connection between the cooling assembly 3 and the fixed outer frame 2.

[0043] Among them, the magnetic attraction structure includes a magnet 10 provided on the fixed outer frame 2, and the fixed outer frame 2 is magnetically connected to the fixed outer frame 2.

[0044] In addition, heat dissipation fins 11 are provided on the heat sink 7 to dissipate heat from the flexible circuit board body 1 through the heat dissipation fins 11.

[0045] In addition, the fixed outer frame 2 is made of a heat-insulating material, which not only provides protection for the circuit board but also helps prevent the influence of external heat sources on the performance of the circuit board.

[0046] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any change or replacement that can be thought of without creative work should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A foldable flexible circuit board, characterized in that, Comprising: A flexible circuit board body (1), on which a connecting wire (4) is provided and is connected to an external device through the connecting wire (4); A fixed outer frame (2), which is arranged on both sides of the flexible circuit board body (1) to protect the flexible circuit board body through the fixed outer frame (2); A magnetic attraction structure is arranged on one side of the fixed outer frame (2); A cooling component (3), which is arranged on the other side of the fixed outer frame (2), and the cooling end of the cooling component (3) is in contact with the flexible circuit board body (1); Due to the flexibility of the flexible circuit board body (1), when the flexible circuit board body (1) is folded, the fixed outer frames (2) are magnetically attracted to each other, thereby folding and fixing the flexible circuit board.

2. The foldable flexible circuit board according to claim 1, wherein: Fixing grooves (5) are arranged on the inner side surfaces of the fixed outer frames (2), and both ends of the flexible circuit board body (1) are installed in the fixing grooves (5), thereby realizing the installation of the flexible circuit board body (1); A slot structure is arranged on the inner side of the lower end of the fixed outer frame (2), and the cooling component (3) is installed in the fixed outer frame (2) through the slot structure, and the flexible circuit board body is cooled through the cooling component (3).

3. The foldable flexible circuit board according to claim 1, wherein: The cooling component (3) includes a semiconductor refrigeration sheet (6) and a heat dissipation plate (7); The cooling end of the semiconductor refrigeration sheet (6) is in contact with the flexible circuit board body (1), and the heating end of the semiconductor refrigeration sheet (6) is connected to the heat dissipation plate; The semiconductor refrigeration sheet (6) is connected to the fixed outer frame (2) through a slot structure.

4. The foldable flexible circuit board according to claim 3, wherein: The slot structure includes a fixed slot (8) arranged on the inner side surface of the fixed outer frame (2) and a plug (9) arranged on the outer side of the semiconductor refrigeration sheet (6); The plug (9) is inserted into the fixed slot (8) of the fixed outer frame (2), thereby realizing the connection between the cooling component (3) and the fixed outer frame (2).

5. The foldable flexible circuit board according to claim 1, characterized in that: The magnetic attraction structure includes a magnet (10) arranged on the fixed outer frame (2), and the fixed outer frames (2) are magnetically connected to each other.

6. The foldable flexible circuit board according to claim 3, characterized in that: Heat dissipation fins (11) are arranged on the heat dissipation plate, and the flexible circuit board body (1) is dissipated heat through the heat dissipation fins (11).

7. The foldable flexible circuit board according to claim 1, characterized in that: The fixed outer frame (2) is made of a heat-insulating material.