CN211959674U

CN211959674U - Soft or hard circuit board connection structure

Info

Publication number: CN211959674U
Application number: CN202021083972.9U
Authority: CN
Inventors: 马瑞海; 沙晓明; 彭志军; 张顺斌
Original assignee: Shenzhen Lurun Electronic Tech Co ltd
Current assignee: Shenzhen Lurun Electronic Tech Co ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-11-17
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a soft and hard circuit board connecting structure, which comprises a hard circuit board and a flexible circuit board, wherein one end of the hard circuit board is clamped with the flexible circuit board, one end of the upper surface of the hard circuit board is fixed with a clamping mechanism which is convenient for the flexible circuit board to be clamped with the hard circuit board, and the flexible circuit board is clamped with the hard circuit board through the clamping structure, the clamping mechanism comprises a U-shaped frame, a rotating block, an inserting block, a first contact and a second contact, one end of the upper surface of the hard circuit board is fixed with the U-shaped frame, the inner wall of the U-shaped frame is connected with the rotating block through a shaft pin in a rotating way, one side of the rotating block is provided with an inserting groove, the inner wall of the inserting groove is inserted with the inserting block, the inner wall of the inserting groove is fixed with the first contact, the first contact is electrically connected with the hard circuit, the maintenance cost is reduced, the installation and the disassembly are convenient, and the use by people is convenient.

Description

Soft or hard circuit board connection structure

Technical Field

The utility model relates to a soft or hard circuit board's connection technical field specifically is a soft or hard circuit board connection structure.

Background

The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. The circuit board can be called as a printed circuit board or a printed circuit board, an FPC circuit board (the FPC circuit board is also called as a flexible circuit board which is made of polyimide or polyester film as a base material and has the characteristics of high reliability and excellent flexibility, and the FPC circuit board has the characteristics of high wiring density, light weight, thin thickness and good bending property) and a rigid-flexible combined board, the birth and development of the FPC and the PCB urge the generation of a new product of the rigid-flexible combined board, therefore, the rigid-flexible combined board, namely the flexible circuit board and the rigid circuit board, are combined together according to related process requirements through processes such as pressing and the like to form the circuit board with the FPC property and the PCB property, the connection of the existing rigid circuit board and the flexible circuit board is mostly welded through pressing the latter and can not be disassembled, therefore, when one of the rigid circuit board or the flexible circuit board fails, the whole body needs to be replaced, the maintenance cost is increased, and therefore, a flexible circuit board and hard circuit board connecting structure is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft or hard circuit board connection structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flexible-hard circuit board connecting structure comprises a hard circuit board and a flexible circuit board, wherein the flexible circuit board is clamped at one end of the hard circuit board, a clamping mechanism which is convenient for clamping the flexible circuit board and the hard circuit board is fixed at one end of the upper surface of the hard circuit board, the flexible circuit board is clamped with the hard circuit board through a clamping structure, the clamping mechanism comprises a U-shaped frame, a rotating block, an inserting block, a first contact and a second contact, a U-shaped frame is fixed at one end of the upper surface of the hard circuit board, the inner wall of the U-shaped frame is rotationally connected with a rotating block through a shaft pin, a slot is arranged on one side of the rotating block, an inserting block is inserted into the inner wall of the slot, a first contact is fixed on the inner wall of the slot, the first contact is electrically connected with the hard circuit board through the flat cable, the second contact is fixed on the lower surface of the plug block, and the second contact is electrically connected with the flexible circuit board.

Preferably, the clamping mechanism still includes shell fragment, fixed block, stop gear and limiting plate, the one end symmetry that stereoplasm circuit board upper surface is close to the U-shaped frame is fixed with the shell fragment, shell fragment one end and commentaries on classics piece contact, U-shaped frame both ends symmetry is fixed with the fixed block, fixed block internally mounted has stop gear, two the fixed block bottom is fixed with the limiting plate.

Preferably, stop gear is including leading to groove, elastic rod, fixture block, draw-in groove and driving lever, logical groove has been seted up at the fixed block middle part, it is fixed with the elastic rod to lead to the one end that the inslot wall is close to the inserted block, the elastic rod top is fixed with the fixture block, the inserted block bilateral symmetry seted up with fixture block matched with draw-in groove, and fixture block and draw-in groove joint, the elastic rod upper end is fixed with the driving lever, and driving lever and logical groove sliding connection.

Preferably, one end of the inner wall of the through groove, which is far away from the insertion block, is provided with a shifting groove, and one end of the shifting rod, which is close to the shifting groove, is fixed with an anti-slip block.

Preferably, the lower surface of the insert block is fixed with a positioning block, the upper surface of the limiting plate is provided with a positioning groove matched with the positioning block, and the positioning block is inserted into the positioning groove.

Preferably, the limiting blocks are symmetrically fixed on the inner wall of the U-shaped frame.

Preferably, the fixture block is arranged in an inclined plane.

Preferably, a connector is fixed on the lower surface of one end of the flexible circuit board, which is far away from the plug block, and the connector is electrically connected with the flexible circuit board.

Preferably, a reinforcing steel sheet is fixed to one end, close to the connector, of the upper surface of the flexible circuit board.

Preferably, an avoiding groove is formed in one end, close to the U-shaped frame, of the hard circuit board.

Compared with the prior art, the beneficial effects of the utility model are that:

when the flexible circuit board is used, when the flexible circuit board is not connected with the hard circuit board, the rotating block is overturned upwards under the elasticity of the elastic sheet until the rotating block touches the limiting block to stop, at the moment, people insert the inserting block on the flexible circuit board into the slot on the rotating block to make the first contact with the second contact to make the flexible circuit board electrically connected with the hard circuit board, at the moment, people overturn the inserting block downwards to further drive the rotating block to overturn and make the inserting block slide into the space between the two fixing blocks to make the inserting block extrude the inclined plane of the clamping block to make the clamping block drive the elastic rod to deform to make the clamping block slide into the through slot, when the inserting block contacts with the limiting plate, the clamping slot just coincides with the clamping block to make the clamping block clamped into the clamping slot under the elasticity of the elastic rod to limit the inserting block, at the moment, the connection between the flexible circuit board and the hard circuit board can, people stir the driving lever through pointing or rod-shaped instrument, and then drive the elastic rod and take place deformation, and then drive the fixture block and follow the roll-off in the draw-in groove, remove the spacing to the inserted block, the piece that changes this moment upwards overturns under the elasticity of shell fragment, and then drive the also upwards upset of inserted block, make between two fixed blocks of inserted block roll-off, people can extract the inserted block from changing the piece this moment, change flexible circuit board, this device can be dismantled flexible circuit board, and the maintenance cost is reduced, and it is comparatively convenient to install and dismantle, and people convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the latch mechanism of the present invention;

FIG. 3 is a schematic view of the structure of the elastic sheet of the present invention;

FIG. 4 is a schematic structural view of the limiting mechanism of the present invention;

fig. 5 is a schematic structural diagram of the flexible circuit board of the present invention.

In the figure: 1. a hard circuit board; 2. a flexible circuit board; 3. a clamping mechanism; 31. a U-shaped frame; 32. rotating the block; 33. inserting a block; 34. a first contact; 35. a second contact; 36. a spring plate; 37. a fixed block; 38. a limiting mechanism; 381. a through groove; 382. an elastic rod; 383. a clamping block; 384. a card slot; 385. a deflector rod; 39. a limiting plate; 4. a groove is poked; 5. anti-skid blocks; 6. positioning blocks; 7. positioning a groove; 8. a limiting block; 9. a connector; 10. reinforcing steel sheets; 11. avoiding the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a schematic diagram of a flexible-rigid circuit board connection structure includes a rigid circuit board 1 and a flexible circuit board 2, the flexible circuit board 2 is fastened to one end of the rigid circuit board 1, a fastening mechanism 3 for fastening the flexible circuit board 2 to the rigid circuit board 1 is fixed to one end of the upper surface of the rigid circuit board 1, and the flexible circuit board 2 is fastened to the rigid circuit board 1 through the fastening mechanism.

Referring to fig. 2, 3, 4 and 5, the clamping mechanism 3 includes a U-shaped frame 31, a rotation block 32, an insertion block 33, a first contact 34 and a second contact 35, the U-shaped frame 31 is fixed at one end of the upper surface of the rigid circuit board 1, the rotation block 32 is rotatably connected to the inner wall of the U-shaped frame 31 through a shaft pin, a slot is formed at one side of the rotation block 32, the insertion block 33 is inserted into the inner wall of the slot, the first contact 34 is fixed to the inner wall of the slot, the first contact 34 is electrically connected to the rigid circuit board 1 through a flat cable, the second contact 35 is fixed to the lower surface of the insertion block 33, the second contact 35 is electrically connected to the flexible circuit board 2, the limiting blocks 8 are symmetrically fixed to the inner wall of the U-shaped frame 31, an avoiding groove 11 is formed at one end of the rigid circuit board 1 close to the U-shaped frame 31, the clamping mechanism 3 further includes a spring plate 36, a fixing block 37, the upper surface of the hard circuit board 1 is symmetrically fixed with spring plates 36 at one end close to the U-shaped frame 31, one end of each spring plate 36 is in contact with the rotating block 32, the two ends of the U-shaped frame 31 are symmetrically fixed with fixing blocks 37, limiting mechanisms 38 are arranged inside the fixing blocks 37, and limiting plates 39 are fixed at the bottoms of the fixing blocks 37, so that the flexible circuit board 2 and the hard circuit board 1 can be conveniently connected.

Referring to fig. 4 and 5, the limiting mechanism 38 includes a through groove 381, an elastic rod 382, a fixture block 383, a clamping groove 384 and a shift lever 385, the through groove 381 is formed in the middle of the fixing block 37, the elastic rod 382 is fixed to one end, close to the insert block 33, of the inner wall of the through groove 381, the fixture block 383 is fixed to the top of the elastic rod 382, the fixture block 383 is arranged in an inclined plane, the clamping grooves 384 matched with the fixture block 383 are symmetrically formed in two sides of the insert block 33, the fixture block 383 is clamped with the clamping groove 384, the shift lever 385 is fixed to the upper end of the elastic rod 382, the shift lever 385 is slidably connected with the through groove 381, the shift groove 4 is formed in one end, far away from the insert block 33, of the inner wall of the through groove 381, the anti-slip.

Referring to fig. 4 and 5, a positioning block 6 is fixed on the lower surface of the insertion block 33, a positioning groove 7 matched with the positioning block 6 is formed in the upper surface of the limiting plate 39, and the positioning block 6 is inserted into the positioning groove 7, so that the insertion block 33 is limited in the horizontal direction.

Referring to fig. 1 and 5, a connector 9 is fixed on a lower surface of an end of the flexible circuit board 2 away from the insertion block 33, the connector 9 is electrically connected to the flexible circuit board 2, and a reinforcing steel sheet 10 is fixed on an end of the upper surface of the flexible circuit board 2 close to the connector 9, so as to improve strength of the flexible circuit board 2 close to the connector 9.

The working principle is as follows:

when the flexible circuit board 2 is not connected with the hard circuit board 1, the rotating block 32 is turned upwards under the elastic force of the elastic sheet 36 until the rotating block 32 touches the limiting block 8 and stops, at this time, people insert the inserting block 33 on the flexible circuit board 2 into the slot on the rotating block 32 to make the first contact 34 contact with the second contact 35, so that the flexible circuit board 2 is electrically communicated with the hard circuit board 1, at this time, people turn the inserting block 33 downwards to drive the rotating block 32 to turn over, and make the inserting block 33 slide into the space between the two fixing blocks 37, so that the inserting block 33 presses the inclined surface of the clamping block 383, the clamping block 383 drives the elastic rod 382 to deform, so that the clamping block 383 slides into the through slot 381, when the inserting block 33 contacts with the limiting plate 39, the clamping slot 384 just coincides with the clamping block 383, so that the clamping block 383 is clamped into the clamping slot 384 under the elastic force of the elastic rod 382 to limit the inserting block 33, and at this time, the connection of the, when people need dismantle flexible circuit board 2, people stir driving lever 385 through finger or rod-shaped instrument, and then drive elastic rod 382 and take place deformation, and then drive fixture block 383 and slide out from draw-in groove 384, remove the spacing to inserted block 33, the upset of turning block 32 under the elasticity of shell fragment 36 is upwards at this moment, and then drive inserted block 33 and also upwards overturn, make between two fixed blocks 37 of inserted block 33 roll-off, people can extract inserted block 33 from turning block 32 this moment, change flexible circuit board 2.

It is noted that, herein, relational terms such as first and second, and the like may be 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 soft or hard circuit board connection structure, includes stereoplasm circuit board (1) and flexible circuit board (2), stereoplasm circuit board (1) one end joint has flexible circuit board (2), its characterized in that: the flexible printed circuit board comprises a hard circuit board (1), wherein a clamping mechanism (3) which is convenient for the flexible printed circuit board (2) to be clamped with the hard circuit board (1) is fixed at one end of the upper surface of the hard circuit board (1), the flexible printed circuit board (2) is clamped with the hard circuit board (1) through a clamping structure, the clamping mechanism (3) comprises a U-shaped frame (31), a rotating block (32), an inserting block (33), a first contact (34) and a second contact (35), the U-shaped frame (31) is fixed at one end of the upper surface of the hard circuit board (1), the rotating block (32) is rotatably connected to the inner wall of the U-shaped frame (31) through a shaft pin, an inserting groove is formed in one side of the rotating block (32), the inserting block (33) is inserted into the inner wall of the inserting groove, the first contact (34) is fixed on the inner wall of the inserting groove, the first contact (34) is electrically, and the second contact (35) is electrically connected with the flexible circuit board (2).

2. The flexible-rigid circuit board connection structure according to claim 1, wherein: clamping mechanism (3) still include shell fragment (36), fixed block (37), stop gear (38) and limiting plate (39), the one end symmetry that hard circuit board (1) upper surface is close to U-shaped frame (31) is fixed with shell fragment (36), shell fragment (36) one end and commentaries on classics piece (32) contact, U-shaped frame (31) both ends symmetry is fixed with fixed block (37), fixed block (37) internally mounted has stop gear (38), two fixed block (37) bottom is fixed with limiting plate (39).

3. The flexible printed circuit board connection structure according to claim 2, wherein: stop gear (38) are including leading to groove (381), elastic rod (382), fixture block (383), draw-in groove (384) and driving lever (385), logical groove (381) has been seted up at fixed block (37) middle part, the one end that leads to groove (381) inner wall and be close to inserted block (33) is fixed with elastic rod (382), elastic rod (382) top is fixed with fixture block (383), inserted block (33) bilateral symmetry seted up with fixture block (383) matched with draw-in groove (384), and fixture block (383) and draw-in groove (384) joint, elastic rod (382) upper end is fixed with driving lever (385), and driving lever (385) and leading to groove (381) sliding connection.

4. A flexible-rigid circuit board connection structure according to claim 3, wherein: the end, far away from the inserting block (33), of the inner wall of the through groove (381) is provided with a shifting groove (4), and one end, close to the shifting groove (4), of the shifting lever (385) is fixed with an anti-skidding block (5).

5. The flexible-rigid circuit board connection structure according to claim 4, wherein: the lower fixed surface of inserted block (33) has locating piece (6), locating plate (39) upper surface is seted up and is seted up constant head tank (7) with locating piece (6) matched with, and locating piece (6) are pegged graft with constant head tank (7).

6. The flexible-rigid circuit board connection structure according to claim 1, wherein: and limiting blocks (8) are symmetrically fixed on the inner wall of the U-shaped frame (31).

7. A flexible-rigid circuit board connection structure according to claim 3, wherein: the clamping block (383) is arranged in an inclined plane.

8. The flexible-rigid circuit board connection structure according to claim 1, wherein: the lower surface of one end, far away from the insertion block (33), of the flexible circuit board (2) is fixedly provided with a connector (9), and the connector (9) is electrically connected with the flexible circuit board (2).

9. The flexible-rigid circuit board connection structure according to claim 8, wherein: and a reinforcing steel sheet (10) is fixed at one end of the upper surface of the flexible circuit board (2) close to the connector (9).

10. The flexible-rigid circuit board connection structure according to claim 1, wherein: an avoiding groove (11) is formed in one end, close to the U-shaped frame (31), of the hard circuit board (1).