CN210840182U

CN210840182U - Shielding structure of double-layer PCB

Info

Publication number: CN210840182U
Application number: CN201921477230.1U
Authority: CN
Inventors: 卢海航; 陈文徳; 柯木真
Original assignee: Baiqiang Electronics Shenzhen Co ltd
Current assignee: Baiqiang Electronics Shenzhen Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-23
Anticipated expiration: 2029-09-02

Abstract

The utility model discloses a shielding structure of double-deck PCB board, include: mounting a bottom plate, a first PCB, a second PCB and a shielding case; one side of the first PCB is provided with a plurality of first connecting rods, and the other side of the first PCB is provided with first hole columns corresponding to the positions of the first connecting rods; one side of the second PCB is provided with a plurality of second connecting rods, and the other side of the second PCB is provided with second hole columns corresponding to the positions of the second connecting rods; a third hole column corresponding to the second connecting rod is arranged on the mounting bottom plate; the second PCB is arranged above the mounting base plate, each second connecting rod is inserted into the corresponding third hole column, the first PCB is positioned above the second PCB, and each first connecting rod is inserted into the corresponding second hole column; and the second hole column and the third hole column are both sleeved with damping springs. The utility model discloses technical scheme aims at providing a shock attenuation is effectual, and the equipment is convenient, the more stable shielding structure of double-deck PCB board of structure.

Description

Shielding structure of double-layer PCB

Technical Field

The utility model relates to a PCB board technical field, in particular to shielding structure of double-deck PCB board.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing. Present double-deck PCB plate structure shock attenuation effect is not good, causes not hard up to the components and parts on the PCB board easily, influences life, and its equipment is responsible for relatively simultaneously, influences production efficiency.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a shielding structure of double-deck PCB board that shock attenuation is effectual, and the equipment is convenient, and the structure is more stable is provided.

In order to achieve the above object, the utility model provides a shielding structure of double-deck PCB board, include: mounting a bottom plate, a first PCB, a second PCB and a shielding case; one side of the first PCB is provided with a plurality of first connecting rods, and the other side of the first PCB is provided with first hole columns corresponding to the positions of the first connecting rods; one side of the second PCB is provided with a plurality of second connecting rods, and the other side of the second PCB is provided with second hole columns corresponding to the positions of the second connecting rods; a third hole column corresponding to the second connecting rod is arranged on the mounting bottom plate, and the first hole column, the second hole column and the third hole column are hollow columns with openings at one ends; the second PCB is arranged above the mounting base plate, each second connecting rod is inserted into the corresponding third hole column, the first PCB is positioned above the second PCB, and each first connecting rod is inserted into the corresponding second hole column; the second hole post with all the cover is equipped with damping spring on the third hole post, the shield cover with mounting plate lock is connected.

Preferably, the damping spring is connected to the second connecting rod, the second holed column and the third holed column through a spring connector.

Preferably, the number of the first connecting rods is four, and four of the first connecting rods are respectively arranged at positions of the first PCB near corners.

Preferably, a rubber groove used for being connected with the shielding cover in a clamping mode is further arranged on the mounting bottom plate.

Preferably, the shield is a ceramic shield.

Compared with the prior art, the beneficial effects of the utility model are that: the shock attenuation is effectual, and the equipment is simple, stable in structure, and production efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

FIG. 2 is an enlarged view of a portion of the structure of FIG. 1;

fig. 3 is a schematic view of the installation structure of the present invention;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

As shown in fig. 1 to 3, the shielding structure of a dual-layer PCB board according to the present embodiment includes: a mounting base plate 100, a first PCB 200, a second PCB 300, and a shield can 400; one surface of the first PCB 200 is provided with a plurality of first connection rods 210, and the other surface of the first PCB 200 is provided with first hole columns 220 at positions corresponding to the first connection rods 210; one surface of the second PCB 300 is provided with a plurality of second connecting bars 310, and the other surface of the second PCB 300 is provided with second hole columns 320 at positions corresponding to the second connecting bars 310; the mounting base plate 100 is provided with a third hole column 110 corresponding to the second connecting rod 310, and the first hole column 220, the second hole column 320 and the third hole column 110 are hollow columns with openings at one ends; the second PCB 300 is disposed above the mounting base plate 100, each second connecting rod 310 is inserted into the corresponding third hole column 110, the first PCB 200 is disposed above the second PCB 300, and each first connecting rod 210 is inserted into the corresponding second hole column 320; the second hole column 320 and the third hole column 110 are both sleeved with a damping spring 500, and the shielding case 400 is buckled with the installation bottom plate 100. Wherein, both ends of the lower damping spring 500 are connected with the installation base plate 100 and the second PCB 300, respectively; both ends of the upper damping spring 500 are respectively connected with the first PCB 200 and the second PCB 300

The utility model discloses only need to establish damping spring 500 on third hole post 110 and second hole post 320 cover earlier when assembling, insert the second connecting rod 310 of second PCB board 300 in the third hole post 110 of mounting plate 100 again, then insert the first connecting rod 210 of first PCB board 200 in the second hole post 320, lock shield 400 on mounting plate 100 at last, assemble very high-efficient like this; if strong vibration occurs, the damping spring 500 can play a good role in damping; even if the first connecting rod 210 is inverted, the first connecting rod can abut against the shielding case 400, and the damping spring 500 can also bring a damping effect; the shield cover 400 is fastened to the mounting base plate 100, so that the first PCB 200 and the second PCB 300 are completely protected in the shield cover 400, and the shielding effect is good.

Further, the damping device further comprises spring connectors 600, wherein the spring connectors 600 are arranged at two ends of the damping spring 500; damping spring 500 passes through spring coupling 600 to be connected on second connecting rod 310, second hole post 320 and third hole post 110, and spring coupling 600 is threaded connection with the back three, convenient dismantlement.

Further, there are four first connection rods 210, the four first connection rods 210 are respectively disposed at positions of the first PCB 200 near corners, and the four corners are all provided with the first connection rods 210, so that the entire structure is more stable.

Further, still be provided with the rubber groove 120 that is used for being connected with shield cover 400 block on the mounting plate 100, rubber groove 120 adopts insulating waterproof rubber, and it has elasticity promptly the elasticity simultaneously, can make things convenient for block and dismantlement.

Further, the shield can 400 is a ceramic shield can 400. The ceramic shielding can 400 is brushed with electromagnetic wave shielding paint to shield electromagnetism and static electricity.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A shielding structure of a double-layer PCB board is characterized by comprising: mounting a bottom plate, a first PCB, a second PCB and a shielding case; one side of the first PCB is provided with a plurality of first connecting rods, and the other side of the first PCB is provided with first hole columns corresponding to the positions of the first connecting rods; one side of the second PCB is provided with a plurality of second connecting rods, and the other side of the second PCB is provided with second hole columns corresponding to the positions of the second connecting rods; a third hole column corresponding to the second connecting rod is arranged on the mounting bottom plate, and the first hole column, the second hole column and the third hole column are hollow columns with openings at one ends; the second PCB is arranged above the mounting base plate, each second connecting rod is inserted into the corresponding third hole column, the first PCB is positioned above the second PCB, and each first connecting rod is inserted into the corresponding second hole column; the second hole post with all the cover is equipped with damping spring on the third hole post, the shield cover with mounting plate lock is connected.

2. The shielding structure of a double-layered PCB of claim 1, wherein the damping spring is connected to the second connection bar, the second hole post and the third hole post through a spring connector.

3. The shielding structure of a double-layer PCB of claim 1, wherein the number of the first connecting bars is four, and four of the first connecting bars are respectively disposed at positions near corners of the first PCB.

4. The shielding structure of a double-layer PCB of claim 1, wherein the mounting base plate is further provided with a rubber groove for snap-fit connection with the shielding can.

5. The shielding structure of a double-layered PCB board of any one of claims 1 to 4, wherein the shielding case is a ceramic shielding case.