CN210671017U

CN210671017U - Buffer structure of printed circuit board

Info

Publication number: CN210671017U
Application number: CN201921273483.7U
Authority: CN
Inventors: 陈赵云; 孟辉; 黄伟金
Original assignee: Zhuhai Gushine Electronic Technology Co ltd
Current assignee: Zhuhai Gushine Electronic Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-06-02
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to a printed circuit board installs technical field, discloses a printed circuit board's buffer structure, solves the PCB board and causes the problem of damage because of falling or colliding. The utility model comprises a shell, a bracket and a PCB; a groove matched with the shape of the bracket is arranged in the shell; the bracket is made of flexible materials and is provided with a first clamping part for fixing the PCB; the PCB board is provided with a second clamping part which is matched and clamped with the first clamping part. The utility model adopts the support made of flexible material, the structure of the support embedded groove and the structure of the support and the PCB joint, which can avoid fixing the PCB board by using screws, thereby playing a role of buffering when falling or colliding, and effectively avoiding the bad condition generated after the energy generated by vibration is transmitted to the PCB board; in addition, the fixing between the PCB and the shell is realized by using the flexible connecting piece, the transmission efficiency of vibration is further reduced, and the PCB is effectively protected.

Description

Buffer structure of printed circuit board

Technical Field

The utility model relates to a printed circuit board installs technical field, especially a printed circuit board's buffer structure.

Background

At present, the commonly used fixing mode of the electronic circuit board structure is mainly to fix the PCB on the rigid bracket and/or the housing in a screw locking mode, if the electronic circuit board falls or collides, the impact force generated by the vibration is transmitted to the PCB through the screws, the bracket and/or the housing, so that the element of the PCB is damaged or falls, and the electronic product cannot be used continuously.

Disclosure of Invention

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a buffer structure of printed circuit board, solve the PCB board because of falling or the collision causes the problem of damage.

According to a first aspect of the present invention, a buffer structure of a printed circuit board is provided, which includes a housing, a bracket and a PCB board;

a groove matched with the shape of the bracket is arranged in the shell;

the bracket is made of flexible materials and is provided with a first clamping part for fixing the PCB;

the PCB board is provided with a second clamping part which is matched and clamped with the first clamping part.

Further, first joint portion is card post and/or draw-in groove, second joint portion is draw-in groove and/or card post, the card post with the draw-in groove joint that mutually supports makes the PCB board is fixed in on the support.

Furthermore, the both ends of support still are equipped with the convex part that is used for the location, the both ends of PCB board be equipped with convex part assorted concave part.

Further, the convex part is an arc convex body, the concave part is an arc groove, the front end of the concave part slides in from the front end of the convex part along the outer edge of the convex part until the convex part is embedded into the concave part, and the support and the PCB are fixedly connected.

Furthermore, the groove is provided with at least two positioning columns, and the support is provided with positioning holes matched with the positioning columns.

The PCB is characterized by further comprising a soft connecting piece and a screw, wherein a threaded seat is arranged on the support, a first fixing hole is formed in the shell, one end of the soft connecting piece is connected with the PCB, a second fixing hole matched with the threaded seat is formed in the other end of the soft connecting piece, and the screw sequentially penetrates through the first fixing hole and the second fixing hole and then is in threaded connection with the threaded seat.

Further, the flexible connecting piece is an FPC board, and the FPC board is fixedly connected with the PCB board in a welding or bonding mode and is electrically connected with the PCB board.

Further, the screw base, the first clamping portion and the support are of an integrally formed structure.

Furthermore, the locking piece is provided with a third fixing hole, and the screw sequentially penetrates through the first fixing hole, the third fixing hole and the second fixing hole and then is in threaded connection with the threaded seat, so that the shell, the soft connecting piece and the support are in locking connection.

Further, the casing includes last casing and lower casing that mutual lock is connected, soft connecting piece includes first soft connecting piece and the soft connecting piece of second, the screw includes screw and lower screw, the screw thread seat is including locating the last screw thread seat of support up end and locating the lower screw thread seat of terminal surface under the support, it passes in proper order to go up the screw go up the casing with first soft connecting piece with go up screw thread seat threaded connection, the screw passes in proper order down the casing with the soft connecting piece of second with screw thread seat threaded connection down.

Has the advantages that: the bracket made of flexible materials, the structure that the bracket is embedded into the groove and the structure that the bracket is connected with the PCB are adopted, so that the PCB can be prevented from being fixed by screws, the buffer effect can be realized when the PCB falls or collides, and the bad condition caused by the energy generated by vibration being transferred to the PCB can be effectively avoided;

in addition, the fixing between the PCB and the shell is realized by using the flexible connecting piece, the transmission efficiency of vibration is further reduced, and the PCB is effectively protected.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is an exploded view of a first preferred embodiment of the present invention;

fig. 2 is a schematic structural view of a bracket in a first preferred embodiment of the present invention;

fig. 3 is a schematic structural diagram of a PCB board in a first preferred embodiment of the present invention;

FIG. 4 is a schematic view of the first preferred embodiment of the present invention showing the PCB being clamped to the bracket;

fig. 5 is a schematic structural view of the lower housing in a first preferred embodiment of the present invention;

FIG. 6 is an installation schematic of a first preferred embodiment of the invention;

fig. 7 is an exploded view of a second preferred embodiment of the present invention;

fig. 8 is a schematic view of the second preferred embodiment of the present invention after the flexible connecting member, the PCB and the bracket are mounted;

FIG. 9 is a schematic view of FIG. 8 after the locking screw;

FIG. 10 is a schematic illustration of the installation of a second preferred embodiment of the invention;

FIG. 11 is a top plan view of a second preferred embodiment of the present invention, shown in its entirety, after installation;

fig. 12 is a bottom view of the second preferred embodiment of the present invention, after the whole assembly.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 5, a first preferred embodiment includes a housing 10, a bracket 20, and a PCB 30;

a groove 121 matched with the shape of the bracket 20 is arranged in the shell 10, wherein the shell 10 comprises an upper shell 11 and a lower shell 12 which are mutually buckled and connected, and the groove 121 is arranged in the lower shell 12;

the bracket 20 is made of flexible material and is provided with a first clamping part 21 for fixing the PCB 30;

the PCB 30 is provided with a second clamping portion 31 which is matched and clamped with the first clamping portion 21.

Referring to fig. 4 and 6, during installation, the first clamping portions 21 and the second clamping portions 31 are clamped in a one-to-one correspondence manner, so that the PCB 30 and the bracket 20 are clamped and fixed, and then the bracket 20 is embedded into the groove 121, so that the bracket 20 is fixed on the housing 10, and then installation is completed. And a support platform 24 for supporting the bottom surface of the PCB 30 is disposed on the bracket 20, and the support platform 24 may be a structure protruding from the upper end surface of the bracket or may be directly the upper end surface of the bracket 20. The support platform 24 can be used to keep the whole PCB 30 stable, and if the contact area between the support 20 and the bottom surface of the PCB 30 is reduced, the vibration energy can be further reduced and transmitted to the PCB 30 from the support 20, so in this embodiment, the support platform 24 is a structure in which the upper end surface of the support 20 is convex, and is provided with two middle parts distributed on the upper end surface of the support 20.

The bracket 20 is made of a flexible material, and may be made of rubber, plastic or foam, in this embodiment, a TPU material, i.e., a thermoplastic polyurethane elastomer rubber, is preferably used as a raw material of the bracket 20, and in this embodiment, the first clamping portion 21 and the bracket 20 are integrally formed. Adopt flexible material, can play the effect of buffering, reduced the impact that produces effectively at the collision or fall in-process, avoided vibrations to cause the damage or drop to PCB board 30, adopt the mode of support 20 embedding recess 121 and the mode of PCB board 30 and support 20 joint simultaneously, avoided adopting the mode of screw fixation, avoid shaking too big energy and transmitted to PCB board 30 by casing 10 on, protected PCB board 30 effectively, had to play the ground and reduced the transmission efficiency of vibrations.

Referring to fig. 2, 3 and 4, the first clamping portion 21 is a clamping column and/or a clamping groove, the second clamping portion 31 is a clamping groove and/or a clamping column, and the clamping column and the clamping groove are matched with each other to clamp the PCB 30 on the bracket 20. Specifically, the bracket 20 may be provided with two card slots and three card posts, and the three card posts are arranged between the two card slots at equal intervals, while the rear edge of the PCB 30 is provided with five card slots arranged uniformly, when mounting, the middle three card slots on the PCB 30 are aligned with the corresponding three card posts sequentially, the slots on the two sides of the PCB 30 are engaged with the slots on the two sides of the bracket 20, so that the PCB 30 is fixed on the bracket 20.

The bracket 20 is further provided with a protrusion 22 at both ends for positioning, and the PCB 30 is provided with a recess 32 at both ends for matching with the protrusion 22. The convex part 22 and the concave part 32 can be used for positioning and mounting the PCB 30, so that the card slot and the card column can be connected in a quick alignment way.

The convex portion 22 is an arc convex body, the concave portion 32 is an arc groove, and the front end of the concave portion 32 slides in from the front end of the convex portion 22 along the outer edge of the convex portion 22 until the convex portion 22 is embedded into the concave portion 32, so that the bracket 20 and the PCB 30 are fixedly connected. The convex portion 22 is inserted into the concave portion 32, so that it can also play a role of fixing, and further stabilize the position of the PCB 30 and the bracket 20.

Referring to fig. 2 and 5, at least two positioning posts 122 are disposed on the groove 121, and a positioning hole (not shown) matched with the positioning post 122 is disposed on the bracket 20, in this embodiment, the positioning hole is disposed at the bottom of the bracket 20. By using the positioning column 122, the mounting position of the bracket 20 can be positioned, and the mounting efficiency can be effectively improved during mounting. While further stabilizing the space between the bracket 20 and the housing 10.

Referring to fig. 7, a second preferred embodiment is different from the above embodiment in that: still include soft connecting piece and screw, be equipped with screw thread seat 23 on the support 20, be equipped with first fixed orifices 111 on the casing 10, the one end and the PCB board 30 of soft connecting piece are connected, the other end of soft connecting piece be equipped with screw thread seat 23 assorted second fixed orifices 43, the screw pass first fixed orifices 111 and second fixed orifices 43 in proper order after with screw thread seat 23 threaded connection.

Referring to fig. 8 to 12, during installation, the PCB 30 is clamped to the bracket 20 to be fixed, and one end of the flexible connector is connected to the PCB 30, in this embodiment, the PCB 30 and the flexible connector are connected by welding or bonding, and the two are electrically connected, and then the bracket 20 is integrally embedded into the groove 121, and finally the housing 10, the flexible connector and the bracket 20 are fixedly connected by passing through the first fixing hole 111 and the second fixing hole 43 in sequence and then being screwed to the screw base 23.

In this embodiment, the screw seat 23, the first fastening portion 21 and the bracket 20 are integrally formed. The flexible material is adopted, so that the buffer effect can be achieved, the impact generated in the collision or falling process is effectively reduced, and the PCB 30 is prevented from being damaged or falling off due to vibration. By using the flexible connecting piece and the screw, the PCB 30 is not required to be directly and fixedly connected with the shell 10, the flexible connecting piece can play a role in buffering, the vibration can be prevented from being directly transmitted to the PCB 30 from the shell 10, the PCB 30 is effectively protected, and the electric connection between the PCB 30 and an electronic product outside the shell 10 can be realized by using the screw and the flexible connecting piece.

Casing 10 includes last casing 11 and lower casing 12 of mutual lock joint connection, the inside of casing 12 is located down to recess 121, soft connecting piece includes first soft connecting piece 41 and the soft connecting piece 42 of second, the screw includes screw 51 and lower screw 52, screw base 23 is including the last screw base of locating support 20 up end and locating the lower screw base of support 20 lower extreme end, go up screw 51 and pass last casing 11 and first soft connecting piece 41 and last screw base threaded connection in proper order, lower screw 52 passes casing 12 and the soft connecting piece 42 of second and lower screw base threaded connection in proper order. In this embodiment, the upper screw seat is disposed at the upper end of the first fastening portion 21. Wherein, be equipped with respectively on last casing 11 and the lower casing 12 and connect first fixed orifices 111 of upper screw 51 and lower screw 52 correspondingly, the same reason, the up end of support 2 and lower terminal surface also are equipped with respectively with the screw thread seat 23 that first fixed orifices 111 corresponds, in addition, upper screw 51 and lower screw 52 then realize the tie point of PCB board 30 with outside electronic product signal transmission as connecting terminal, the quantity of upper screw 51 and lower screw 52, and the quantity of first soft connecting piece 41 and second soft connecting piece 42 can set up according to the signal transmission demand of PCB board 30 with outside electronic product.

The flexible connector may be an FPC board (flexible circuit board) or an FFC cable (flexible flat cable) as a signal connection channel for connecting the PCB 30 to an external device. In this embodiment, an FPC board is used, and the FPC board is fixedly connected and electrically connected to the PCB 30 by welding or bonding. The flexible connector serves as an electrical connection channel to connect the PCB 30 with external signals. The screw is made of conductive material and is electrically connected with the flexible connecting piece. The screws and the flexible connectors serve as channels for signal connection between the PCB 30 and external electronic products.

The locking device further comprises a locking sheet 60, a third fixing hole 62 is formed in the locking sheet 60, and screws sequentially penetrate through the first fixing hole 111, the third fixing hole 62 and the second fixing hole 43 and then are in threaded connection with the threaded base 23, so that the shell 10, the flexible connecting piece and the support 20 are fixedly connected. The locking piece 60 is added to further lock the shell 10, the flexible connecting member and the bracket 20, so that the three components are stably connected.

The above is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiments, and the technical effects of the present invention should be included in the protection scope of the present invention as long as the technical effects are achieved by any of the same or similar means.

Claims

1. A buffer structure of a printed circuit board is characterized in that: comprises a shell, a bracket and a PCB board;

a groove matched with the shape of the bracket is arranged in the shell;

2. The buffer structure of a printed circuit board according to claim 1, wherein: first joint portion is card post and/or draw-in groove, second joint portion is draw-in groove and/or card post, the card post with the draw-in groove joint that mutually supports makes the PCB board is fixed in on the support.

3. The buffer structure of a printed circuit board according to claim 1, wherein: the both ends of support still are equipped with the convex part that is used for the location, the both ends of PCB board be equipped with convex part assorted concave part.

4. The buffer structure of a printed circuit board according to claim 3, wherein: the convex part is an arc convex body, the concave part is an arc groove, the front end of the concave part slides in from the front end of the convex part along the outer edge of the convex part until the convex part is embedded into the concave part, and the support and the PCB are fixedly connected.

5. The buffer structure of a printed circuit board according to claim 1, wherein: the groove is provided with at least two positioning columns, and the support is provided with positioning holes matched with the positioning columns.

6. The buffer structure of a printed circuit board according to claim 1, wherein: the PCB is characterized by further comprising a soft connecting piece and a screw, wherein a threaded base is arranged on the support, a first fixing hole is formed in the shell, one end of the soft connecting piece is connected with the PCB, a second fixing hole matched with the threaded base is formed in the other end of the soft connecting piece, and the screw penetrates through the first fixing hole and the second fixing hole in sequence and then is in threaded connection with the threaded base.

7. The buffer structure of printed circuit board according to claim 6, wherein: the flexible connecting piece is an FPC board, and the FPC board is fixedly connected with the PCB board and electrically connected with the PCB board in a welding or bonding mode.

8. The buffer structure of printed circuit board according to claim 6, wherein: the screw base, the first clamping portion and the support are of an integrally formed structure.

9. The buffer structure of printed circuit board according to claim 6, wherein: the locking piece is provided with a third fixing hole, and the screw penetrates through the first fixing hole, the third fixing hole and the second fixing hole in sequence and is connected with the threaded seat in a threaded manner, so that the shell, the soft connecting piece and the support are connected in a locking manner.

10. The buffer structure of printed circuit board according to claim 6, wherein: the casing includes last casing and lower casing that mutual lock is connected, soft connecting piece includes first soft connecting piece and the soft connecting piece of second, the screw includes screw and lower screw, the screw thread seat is including locating the last screw thread seat of support up end and locating the lower screw thread seat of terminal surface under the support, it passes in proper order to go up the screw go up the casing with first soft connecting piece with go up screw thread seat threaded connection, the screw passes in proper order down the casing with the soft connecting piece of second with screw thread seat threaded connection down.