CN211184687U

CN211184687U - Fixing device of PCB circuit board

Info

Publication number: CN211184687U
Application number: CN201922491833.3U
Authority: CN
Inventors: 方正
Original assignee: Wuhan Zhongchuang Rongke Polytron Technologies Inc
Current assignee: Wuhan Zhongchuang Rongke Polytron Technologies Inc
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-04
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a fixing device of a PCB (printed circuit board), wherein the PCB is inserted into a slot on the plane of an electronic box and comprises an inverted U-shaped pressing plate, two U-shaped blocks, a pressing screw rod and a pressing sheet threaded sleeve; the two U-shaped blocks are symmetrically arranged on two sides of the slot; the bottom of the two side plates of the inverted U-shaped pressing plate is respectively provided with a folded edge matched with the U-shaped groove, the top of the inverted U-shaped pressing plate is provided with at least two threaded holes matched with the compression screw along the width direction, the bottom of the screw is in threaded connection with the pressing piece threaded sleeve, the bottom of the pressing piece threaded sleeve is provided with a pressing piece, and the pressing piece is used for pressing the upper edge of the PCB. The utility model provides a fixing device of PCB circuit board has solved the whole PCB circuit board and has been located electronic box upper portion and receive the touching easily and make PCB take place to incline or contact failure's problem.

Description

Fixing device of PCB circuit board

Technical Field

The utility model relates to a belong to electronic equipment technical field, more specifically relate to a fixing device of outer inserted PCB circuit board.

Background

In many electronic box assemblies, the PCB is inserted into slots in the interior or surface of the electronic box during use, and the slots are usually distributed on or near the surface of the electronic box because the user needs to frequently insert and remove the PCB during use. Thus, the whole PCB is basically positioned at the upper part of the electronic box, and the possibility of external force touch exists. Under the power-on state, if the PCB is touched by external force, the PCB is inclined or has poor contact, the use is interrupted if the PCB is light, and the PCB is burnt if the PCB is heavy. The device that is used for the protection circuit board at present is the safety cover usually, and the defect of safety cover has restricted the usage space, and inconvenient plug circuit board needs different specification and dimension's safety cover to the circuit board of co-altitude, and if the safety cover highly be less than when PCB circuit board is high, lead to the safety cover can not used repeatedly. In addition, when the performance of the PCB is tested, the PCB needs to be fixed by the fixing device, and the fixing device needs to be detached after the test.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a fixing device of PCB circuit board, this fixing device can adapt to the fixed of co-altitude PCB circuit board, just fixing device can dismantle.

In order to achieve the technical purpose, the technical scheme of the utility model provides a fixing device of a PCB circuit board, the PCB circuit board is inserted into a slot on the plane of an electronic box, the fixing device comprises an inverted U-shaped pressing plate, two U-shaped blocks, a compression screw and a pressing sheet thread sleeve; the two U-shaped blocks are symmetrically arranged on two sides of the slot, and U-shaped grooves on the two U-shaped blocks face outwards; the bottom of the two side plates of the inverted U-shaped pressing plate is respectively provided with two folded edges matched with the U-shaped grooves, the top of the inverted U-shaped pressing plate is provided with at least two threaded holes matched with the compression screw along the width direction, the bottom of the screw is in threaded connection with the pressing piece threaded sleeve, and the bottom of the pressing piece threaded sleeve is provided with a pressing piece for pressing the PCB.

Further, the compression screw is an inner hexagonal screw.

Furthermore, the bottom of the pressing sheet is also provided with a rubber pad, and the rubber pad is connected with the pressing sheet in a back adhesive bonding mode.

Furthermore, the compression screw is M8 in specification, and the length of the screw is 50-80 mm.

Compared with the prior art, the beneficial effects of the utility model include: the utility model provides a PCB circuit board's fixing device can guarantee that PCB circuit board does not produce when receiving external force touching and rock, has improved PCB circuit board's reliability; can adapt to the fixed plug that does not just influence PCB circuit board of co-altitude, the utility model provides a fixing device still conveniently dismantles and makes PCB circuit board can used repeatedly, has prolonged PCB circuit board's life.

Drawings

Fig. 1 is a front view of a PCB fixing apparatus provided in the present invention;

fig. 2 is a perspective view of the PCB fixing apparatus provided in the present invention;

description of reference numerals:

the device comprises a 1-inverted U-shaped plate, a 2-U-shaped block, a 3-compression screw, a 4-pressing plate threaded sleeve, a 6-electronic box plane, a 7-PCB circuit board and an 8-slot.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to solve the whole PCB circuit board that is located electronic box upper portion and easily receives the touching messenger PCB circuit board and take place to incline or contact failure to and the PCB circuit board of co-altitude can not be suitable for to the mode safety cover that current adoption safety cover protected, the not strong problem of adaptability, the embodiment of the utility model provides a fixing device of PCB circuit board. See in particular fig. 1-2.

As shown in fig. 1 and 2, a PCB circuit board fixing device, wherein a PCB circuit board 7 is inserted into a slot 8 on a plane 6 of an electronic box, and the fixing device comprises an inverted U-shaped pressing plate 1, two U-shaped blocks 2, a pressing screw 3 and a pressing screw sleeve 4; the two U-shaped blocks 2 are symmetrically arranged on two sides of the slot 8, U-shaped grooves on the two U-shaped blocks 2 face outwards, and the two U-shaped blocks 2 and the electronic box plane 6 can be connected through bolts for convenience of disassembly; the bottom of the two side plates of the inverted U-shaped pressing plate 1 is respectively provided with folded edges matched with the U-shaped grooves on the two U-shaped blocks 2, the top of the inverted U-shaped pressing plate 1 is provided with two threaded holes matched with the compression screws 3 along the width direction, the specification of the threaded holes is M8, the threaded holes and the compression screws 3 can also be set to be three or more, and the width of the inverted U-shaped plate 1 and the width of the PCB 7 can be specifically set according to the width of the inverted U-shaped plate 1 and the width of the PCB. The bottom of the compression screw rod 3 is in threaded connection with the pressing sheet threaded sleeve 4, a pressing sheet is arranged at the bottom of the pressing sheet threaded sleeve 4 and used for compressing the PCB 7.

The utility model provides a PCB circuit board's fixing device's theory of operation does: when the PCB 7 needs to be tested and fastened, the compression screw 3 is adjusted to be higher than the height of the PCB 7 on the slot 8, the two folded edges of the inverted U-shaped plate 1 are respectively inserted into the U-shaped grooves on the two U-shaped blocks 2, then the compression screw 3 is adjusted in a rotating mode until the pressing sheets contact the upper edge of the PCB 7, and then the compression screw 3 is adjusted slowly to compress the PCB 7 until the upper portion of the PCB 7 is stressed and does not shake. When the PCB 7 is not required to be tested and fastened or the PCB 7 is required to be pulled out, the hold-down screw 6 is loosened, and the hold-down mechanism is taken down.

In order to generate a larger axial force when the compression screw 3 moves down, the specification of the screw 3 is M8, the length of the screw 3 is 50-80 mm, and the compression screw 3 is a hexagon socket head screw.

In order to prevent the pressing sheet from crushing the PCB 7, a rubber pad (not shown) is further disposed at the bottom of the pressing sheet, and the rubber pad and the pressing sheet are bonded and connected by a back adhesive.

The fixing device for the PCB circuit board provided by the utility model can ensure that the PCB circuit board 7 does not shake when being touched by external force, thereby improving the reliability of the PCB circuit board 7; meanwhile, the compression screw 3 can be adjusted in the height direction, so that the fixing device can also adapt to the fixation of the PCB 7 with different heights. Because two U-shaped pieces 2 are bolted connection with electron case plane 6, the hem of the board 1 of falling U-shaped is inserted and is established in the U-shaped piece 2, consequently the utility model discloses a fixing device can also dismantle when not using, facilitates the use.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A PCB fixing device is characterized in that the fixing device comprises an inverted U-shaped pressing plate, two U-shaped blocks, a pressing screw rod and a pressing sheet threaded sleeve; the two U-shaped blocks are symmetrically arranged on two sides of the slot, and U-shaped grooves on the two U-shaped blocks face outwards; the bottom of the two side plates of the inverted U-shaped pressing plate is respectively provided with two folded edges matched with the U-shaped grooves, the top of the inverted U-shaped pressing plate is provided with at least two threaded holes matched with the compression screw along the width direction, the bottom of the compression screw is in threaded connection with the pressing piece threaded sleeve, the bottom of the pressing piece threaded sleeve is provided with a pressing piece, and the pressing piece is used for pressing the upper edge of the PCB.

2. The PCB circuit board fixing device of claim 1, wherein the compression screw is an inner hexagonal screw.

3. The PCB circuit board fixing device of claim 1, wherein a rubber pad is further arranged at the bottom of the pressing sheet, and the rubber pad is connected with the pressing sheet by means of back glue adhesion.

4. The PCB circuit board fixing device of claim 2, wherein the compression screw has a specification of M8, and the length of the screw is 50 mm-80 mm.