Splicing type flexible circuit board

By using plug-in blocks and card blocks, the flexible circuit boards are stably spliced, which solves the problems of easy detachment and damage of existing spliced ​​flexible circuit boards, and provides stable connection and efficient heat dissipation.

CN223912633UActive Publication Date: 2026-02-13SHENZHEN SANSHENGTONG CIRCUIT CO LTD
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Patent Information

Application Number
CN202520079443.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2026-02-13
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing spliced ​​flexible circuit boards are prone to detachment, and screw connections can easily damage the circuit boards. Existing snap-fit ​​methods are also unstable.

Method used

It adopts a structure of plug-in blocks, plug-in blocks, positioning blocks and card blocks, and realizes splicing through plug-in and card-mounting cooperation, and combines heat conduction plates and heat dissipation fins to fix the circuit board and dissipate heat.

Benefits of technology

It achieves stable connection of flexible circuit boards, avoids damage to the circuit boards, and effectively dissipates heat in high-power applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spliced flexible circuit board which comprises an installation frame, a right side surface of the installation frame is provided with a plugging block, one side surface of the plugging block is symmetrically provided with plugging blocks, one side surface of the plugging block is provided with a clamping groove, and one side surface of the plugging block is symmetrically provided with positioning blocks at two sides of the plugging block. A mounting block is arranged on the left side face of the mounting frame, inserting grooves are symmetrically formed in one side face of the mounting block, and positioning grooves are symmetrically formed in the positions, located on the two sides of the inserting grooves, of one side face of the mounting block. One side face of the inserting block is connected with one side face of the mounting block in an inserting mode, the positioning block and the positioning groove are inserted in an aligned mode, meanwhile, the inserting block can be inserted into the inserting groove, when the inserting block is inserted into the inserting groove, the edge of the inserting block abuts against the inclined face of the clamping block in advance, the clamping block can retract into the movable groove under certain thrust, the clamping block retracts to extrude the spring, and therefore the clamping block can be inserted into the inserting groove. When the inserting block is completely clamped into the inserting groove, the clamping groove is aligned with the movable groove, and at the moment, under the elastic force of the spring, the clamping block is clamped into the clamping groove to complete splicing installation.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of spliced flexible circuit board, especially relates to a spliced flexible circuit board. BACKGROUND

[0002] Flexible circuit board is made of polyimide or polyester film as base material and is a kind of highly reliable, excellent flexible printed circuit board, with the characteristics of high wiring density, light weight, thin thickness and good bending property, and the flexible circuit board is generally spliced, that is, multiple flexible circuit boards form a larger circuit module.

[0003] The spliced flexible circuit board in the prior art generally adopts clamping or screw connection, and the commonly used clamping mode generally has the problem of easy falling off, and the mode using screw connection is prone to damage the flexible circuit board due to the sharp end of the screw, thus a spliced flexible circuit board is provided. SUMMARY

[0004] The utility model discloses a spliced flexible circuit board, and solves the existing problems.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] The utility model discloses a spliced flexible circuit board, which comprises a mounting frame, a plug-in block is arranged on the right side of the mounting frame, plug-in blocks are symmetrically arranged on one side of the plug-in block, clamping grooves are arranged on one side of the plug-in block, positioning blocks are symmetrically arranged on the two sides of the plug-in block, an installation block is arranged on the left side of the mounting frame, plug-in grooves are symmetrically arranged on one side of the installation block, positioning grooves are symmetrically arranged on the two sides of the plug-in groove on one side of the installation block, a movable groove is arranged on one side of the inner wall of the positioning groove, a clamping block is slidably connected in the movable groove, a connecting plate is arranged on one side of the upper surface of the clamping block, a push block is arranged on the upper surface of the connecting plate, a spring is arranged on one side of the clamping block, a heat conduction plate is arranged in the mounting frame, a plurality of heat dissipation fins are arranged on the bottom surface of the heat conduction plate, and a circuit board body is attached to the upper surface of the heat conduction plate by means of heat-conducting silica gel.

[0007] Further, the positioning block position is adapted to the positioning groove position, the plug-in groove position is adapted to the plug-in block position, and the clamping groove position is adapted to the movable groove position.

[0008] Further, the positioning block shape and size are adapted to the positioning groove, the plug-in groove shape and size are adapted to the plug-in block, the clamping groove shape and size are adapted to the clamping block, the free end of the spring is fixedly connected to one side of the inner wall of the movable groove, the clamping block is in trapezoidal structure, and the clamping block is clamped and matched with the clamping groove.

[0009] The utility model has the following beneficial effects:

[0010] The utility model discloses a positioning block and positioning slot are inserted in alignment, and the edge of the insertion block will be in contact with the inclined surface of the clamping block first when the insertion block is inserted into the insertion slot, and the clamping block will retract into the movable slot under a certain pushing force, and the clamping block retracts and extrudes the spring, and when the insertion block is completely clamped into the insertion slot, the clamping slot is aligned with the movable slot, and at this time, the clamping block is clamped into the clamping slot under the elastic force of the spring to complete splicing installation.

[0011] Meanwhile, the circuit board body is pasted on the upper surface of the heat conduction plate through heat conduction silica gel, and the heat conduction plate is matched with the heat dissipation fin to dissipate heat for the circuit board body, which is beneficial to heat dissipation in high-power application and high-temperature environment.

[0012] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is a whole structure schematic view of a splicing type flexible circuit board;

[0015] Figure 2 It is an explosion view of the mounting frame in the utility model;

[0016] Figure 3 It is a front view of a splicing type flexible circuit board;

[0017] Figure 4 It is Figure 3 The sectional view of A-A part in the utility model.

[0018] In the drawings, the component list represented by each sign is as follows: 1, mounting frame;2, insertion block;201, insertion block;202, clamping slot;203, positioning block;3, mounting block;301, insertion slot;302, positioning slot;303, movable slot;304, clamping block;305, spring;306, connecting plate;307, push block;101, heat conduction plate;102, heat dissipation fin;4, circuit board body. DETAILED DESCRIPTION

[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] In the description of the present application, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0021] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] Please refer to Figure 1 - Figure 4 As shown in the drawings, the utility model is a kind of spliced flexible circuit board, including installation frame 1, installation frame 1 right side is provided with plug-in block 2, plug-in block 2 one side is provided with plug-in block 201 symmetrically, plug-in block 201 one side is provided with clamping groove 202, plug-in block 2 one side is provided with positioning block 203 symmetrically in the two sides of plug-in block 201, installation frame 1 left side is provided with mounting block 3, mounting block 3 one side is provided with insertion slot 301 symmetrically, mounting block 3 one side is provided with positioning slot 302 symmetrically in the two sides of insertion slot 301, positioning slot 302 inner wall one side is provided with movable slot 303, movable slot 303 is slidably connected with clamping block 304, clamping block 304 upper surface one side is provided with connecting plate 306, connecting plate 306 upper surface is provided with push block 307, clamping block 304 one side is provided with spring 305.

[0023] Further, installation frame 1 is provided with heat conduction plate 101 inside, the bottom surface of heat conduction plate 101 is provided with several heat dissipation fins 102, the upper surface of heat conduction plate 101 is pasted with circuit board body 4 by heat-conducting silica gel, the free end of spring 305 is fixedly connected with the inner wall one side of movable slot 303, clamping block 304 is trapezoidal structure.

[0024] Further, the position of the positioning block 203 is adapted to the position of the positioning groove 302, the position of the insertion groove 301 is adapted to the position of the insertion block 201, the position of the clamping groove 202 is adapted to the position of the movable groove 303, the shape and size of the positioning block 203 are adapted to the positioning groove 302, the shape and size of the insertion groove 301 are adapted to the insertion block 201, the shape and size of the clamping groove 202 are adapted to the clamping block 304, and the clamping block 304 is clamped with the clamping groove 202.

[0025] It should be noted that, in the utility model, the one side surface of the insertion block 2 is inserted with the one side surface of the mounting block 3, the positioning block 203 is inserted into the positioning groove 302 in alignment, and meanwhile the insertion block 201 is also inserted into the insertion groove 301, when the insertion block 201 is inserted into the insertion groove 301, the edge of the insertion block 201 will first abut against the inclined surface of the clamping block 304, under a certain pushing force, the clamping block 304 will retract into the movable groove 303, the clamping block 304 is retracted and presses the spring 305, when the insertion block 201 is completely clamped into the insertion groove 301, the clamping groove 202 will be aligned with the movable groove 303, at this time, under the elastic force of the spring 305, the clamping block 304 is clamped into the clamping groove 202 to complete the splicing and installation.

[0026] Meanwhile, the circuit board body 4 is pasted on the upper surface of the heat conduction plate 101 through the heat conduction silica gel, and is cooled through the cooperation of the heat conduction plate 101 and the heat dissipation fin 102, which is beneficial to the heat dissipation under high power application and high temperature environment.

[0027] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The preferred embodiments of the utility model disclosed above are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and also do not limit the invention to the specific implementation manner described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A flexible circuit board of the type comprising a mounting frame (1), characterized in that: The right side of the mounting frame (1) is provided with an insertion block (2), one side of the insertion block (2) is symmetrically provided with an insertion block (201), one side of the insertion block (201) is provided with a clamping groove (202), and one side of the insertion block (2) is symmetrically provided with a positioning block (203) on both sides of the insertion block (201). The left side of the mounting frame (1) is provided with a mounting block (3), one side of the mounting block (3) is symmetrically provided with an insertion slot (301), and one side of the mounting block (3) is symmetrically provided with a positioning slot (302) on both sides of the insertion slot (301). The inner wall of the positioning slot (302) is provided with a movable slot (303) on one side, the movable slot (303) is slidably connected with a clamping block (304), the upper surface of the clamping block (304) is provided with a connecting plate (306) on one side, the connecting plate (306) is provided with a push block (307) on the upper surface, and the clamping block (304) is provided with a spring (305) on one side.

2. The flexible circuit of claim 1, wherein, The inside of the mounting frame (1) is provided with a heat conducting plate (101), the bottom surface of the heat conducting plate (101) is provided with a plurality of heat dissipation fins (102), and the upper surface of the heat conducting plate (101) is adhered with a circuit board body (4) through heat conducting silica gel.

3. The flexible circuit of claim 1, wherein, The position of the positioning block (203) is adapted to the position of the positioning slot (302), the position of the insertion slot (301) is adapted to the position of the insertion block (201), and the position of the clamping groove (202) is adapted to the position of the movable slot (303).

4. The flexible circuit of claim 3, wherein, The shape and size of the positioning block (203) are adapted to the positioning slot (302), the shape and size of the insertion slot (301) are adapted to the insertion block (201), and the shape and size of the clamping groove (202) are adapted to the clamping block (304).

5. The flexible circuit of claim 1, wherein, The free end of the spring (305) is fixedly connected with the inner wall of the movable slot (303) on one side, and the clamping block (304) is a trapezoidal structure.

6. The tiled flexible circuit board of claim 4, wherein, The clamping block (304) is matched with the clamping groove (202).