CN220123360U - A shield cover for PCB board - Google Patents

Abstract

The utility model discloses a shielding cover for a PCB (printed circuit board), which comprises a frame, a housing and a PCB main board, wherein a plurality of mounting plates are fixedly arranged at the inner bottom end of the frame, upright posts are fixedly arranged at the top ends of the plurality of mounting plates, sliding plates are fixedly connected in the plurality of upright posts, springs are fixedly arranged at the bottoms of the plurality of sliding plates, the bottoms of the plurality of springs are fixedly arranged at the bottom ends of the upright posts, ejector rods are fixedly arranged at the top ends of the plurality of sliding plates, the top ends of the plurality of ejector rods extend out of the upright posts, clamping blocks are fixedly arranged at the two sides of the housing, clamping grooves are formed in the two sides of the frame, and the clamping blocks are clamped in the clamping grooves. This a shield cover for PCB board can be when dismantling outside with the ejecting frame of housing, convenient to detach to be favorable to follow-up maintenance to the PCB mainboard, and usable a plurality of lifters form the support to the housing after the installation, can further improve compressive capacity, usable a plurality of sealed bars form sealedly to contained angle seam department in the installation simultaneously, thereby have further improved the shielding effect.

Description

A shield cover for PCB board

Technical Field

The utility model relates to the technical field of PCB mainboards, in particular to a shielding cover for a PCB.

Background

The PCB main board is also called a printed wiring board, which is called a printed board for short, and is one of important components of the electronic industry. Almost every electronic device, as small as an electronic watch, a calculator, as large as a computer, a communication electronic device, a military weapon system, has only electronic components such as an integrated circuit, and a printed board is used for electrically interconnecting the respective components. In order to avoid radiation generated by the electronic circuit on the PCB main board in the working process and to shield the mutual interference of electronic elements, a shielding cover is often additionally arranged outside the PCB main board in the production process.

The utility model discloses a shield cover of PCB board through retrieving patent publication number CN203761757U, the shield cover of this PCB board include a frame and a top cap that suits with the size of this PCB board, be equipped with a plurality of buckles on the perpendicular of frame, be equipped with a plurality of bending parts on the lateral wall of top cap, the edge of this lateral wall is the integrated into one piece structure of outwards buckling, and when this top cap was fixed in the top of this frame, the edge of the lateral wall of this top cap was blocked from the inboard to this buckle, and this bending part is contradicted on the parallel surface of this frame.

However, this patent still has not enough, and only there is the contained angle gap in reserving in the top cap in this patent and four contained angles departments of frame, consequently can not form complete sealed shielding to the PCB mainboard after carrying out the block installation, influence the shielding effect easily, and such shield is spliced through the buckle block, because the block position is connected closely when dismantling, and do not have good stress point on the top cap for it is comparatively troublesome when dismantling, probably need carry out the operation of pulling the top cap many times, consumed a large amount of time, influence the work efficiency of follow-up maintenance.

To this end, we propose a shield can for a PCB board.

Disclosure of Invention

The utility model aims to provide a shielding case for a PCB (printed circuit board) so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a shield cover for PCB board, includes frame, housing and PCB mainboard, frame inner bottom fixed mounting has a plurality of mounting panels, and is a plurality of equal fixed mounting in mounting panel top has the stand, and is a plurality of equal sliding connection has the slide in the stand, a plurality of equal fixed mounting in the bottom of slide has the spring, a plurality of equal fixed mounting in the stand bottom of spring, a plurality of equal fixed mounting in top of slide has the ejector pin, and a plurality of outside the stand is all extended on the top of ejector pin, the equal fixed mounting in both sides of housing has the fixture block, the both sides of frame all are provided with the draw-in groove, the fixture block joint is in the draw-in groove, the front and back portion that the top of frame is located every fixture block all rotates and is connected with the gag lever post, two the gag lever post is close to one side bottom each other and offsets with the top of fixture block.

Optionally, corner joints are reserved at four corners of the housing, sealing clamping strips are fixedly installed at the corners of the housing, which correspond to the corner joints on the housing, in the frame, the sealing clamping strips are respectively clamped in the corresponding corner joints, and the corner joints can be sealed through the sealing clamping strips, so that the shielding effect is improved.

Optionally, a plurality of the top of sealing card strip all extends outside the frame, and a plurality of sealing card strip is kept away from the equal fixed mounting of one side of housing and is had the side to keep off the frame, can form the support fixed to sealing card strip extension through the side and keep off the frame.

Optionally, a plurality of side keeps off the frame and all sets up to the L type, is favorable to the use of this kind of shield cover through this kind of design.

Optionally, the top corresponds a plurality of ejector pins department in the housing and all fixed mounting has the rubber piece, and a plurality of the bottom of rubber piece offsets with corresponding ejector pin respectively, can avoid the ejector pin roof pressure in-process to cause wearing and tearing in the housing through the rubber piece.

Optionally, the perforation has all been reserved to a plurality of stand departments that correspond on the PCB mainboard, and a plurality of the stand all passes corresponding perforation, can carry out spacing fixed to the PCB mainboard through this kind of design.

Optionally, a plurality of all reserve the catching groove on the gag lever post, be convenient for detain the action gag lever post through the catching groove, be favorable to the use of gag lever post.

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

through side fender frame, gag lever post, fixture block, mounting panel, sealed card strip, rubber block, stand, ejector pin, spring and slide mutually support, can be when dismantling outside with the ejecting frame of housing, convenient to detach to be favorable to follow-up maintenance to the PCB mainboard, and usable a plurality of ejector pins form the support to the housing after the installation, can further improve the compressive capacity, usable a plurality of sealed card strips form sealedly to contained angle seam department in the installation simultaneously, thereby have further improved the shielding effect.

Drawings

Fig. 1 is a schematic view of the whole structure of a shield can for a PCB board according to the present utility model;

fig. 2 is a schematic structural view of a cover shell in a shielding case for a PCB board according to the present utility model;

fig. 3 is a cross-sectional view of a shield can for a PCB board according to the present utility model;

fig. 4 is an enlarged view of a shield can for a PCB board of the present utility model as shown in fig. 3.

In the figure: 1. a frame; 2. a housing; 3. a side baffle frame; 4. a limit rod; 5. a clamping block; 6. a clamping groove; 7. a buckling groove; 8. a corner clamping seam; 9. a PCB motherboard; 10. a mounting plate; 11. sealing clamping strips; 12. a rubber block; 13. a column; 14. a push rod; 15. a spring; 16. a slide plate; 17. and (5) perforating.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the utility model provides a shielding cover for a PCB board, which comprises a frame 1, a housing 2 and a PCB main board 9, wherein a plurality of mounting plates 10 are fixedly mounted at the inner bottom end of the frame 1, upright posts 13 are fixedly mounted at the top ends of the plurality of mounting plates 10, sliding plates 16 are slidably connected in the plurality of upright posts 13, springs 15 are fixedly mounted at the bottoms of the plurality of sliding plates 16, bottoms of the plurality of springs 15 are fixedly mounted at the bottom ends of the upright posts 13, ejector rods 14 are fixedly mounted at the top ends of the plurality of sliding plates 16, the top ends of the plurality of ejector rods 14 extend out of the upright posts 13, clamping blocks 5 are fixedly mounted at two sides of the housing 2, clamping grooves 6 are respectively formed in two sides of the frame 1, the clamping blocks 5 are clamped in the clamping grooves 6, the top end of the frame 1 is positioned at the front and the rear parts of each clamping block 5 and rotatably connected with limiting rods 4, and the bottom ends of one side, which are close to each other, of the two limiting rods 4 are abutted against the top ends of the clamping blocks 5.

The four corners department of housing 2 has reserved the angle seam 8, a plurality of angle seam 8 department equal fixed mounting that corresponds on the housing 2 has sealed joint 11 in the frame 1, a plurality of sealed joint 11 are in the angle seam 8 that corresponds respectively, can form sealedly to angle seam 8 department through sealed joint 11, thereby improve shielding effect, outside frame 1 is all extended to the top of a plurality of sealed joint 11, and a plurality of sealed joint 11 keep away from the equal fixed mounting of one side of housing 2 and have side check frame 3, can form the support fixed to sealed joint 11 extension part through side check frame 3, a plurality of side check frame 3 all set up to the L type, use of this kind of shield cover is favorable to through this kind of design, top corresponds a plurality of ejector pins 14 department equal fixed mounting in the housing 2 has rubber piece 12, the bottom of a plurality of rubber piece 12 offsets with corresponding ejector pin 14 respectively, can avoid in the ejector pin 14 roof pressure in-process to cause housing 2 through rubber piece 12, a plurality of stand 13 departments all reserve perforation 17 on the mainboard 9, and a plurality of stand 13 all wear out the perforation 17, and all wear out the design that makes the limit lever 4 can be detained to the limit lever 4 in advance through the corresponding PCB 7, the limit lever 4 is detained to the limit lever 4, the limit lever is easy to be used to carry out to the limit lever 4.

Working principle: during the use, can correspond stand 13 department with a plurality of perforation 17 on the PCB mainboard 9, then establish on a plurality of stands 13 with PCB mainboard 9 cover, then with two fixture blocks 5 joint on the housing 2 to in the draw-in groove 6 that corresponds, rotate a plurality of gag lever posts 4 towards fixture block 5 one side, make the bottom of gag lever post 4 offset with the top of fixture block 5, can accomplish the installation, a plurality of sealed joint strips 11 can the joint respectively in the contained angle seam 8 that corresponds simultaneously, make housing 2 form complete seal, during the dismantlement, rotate a plurality of gag lever posts 4 towards one side of keeping away from fixture block 5, when losing spacing on fixture block 5, spring 15 resilience drives slide 16 return, make ejector pin 14 extend outside stand 13, can be with housing 2 ejecting frame 1 outward, be convenient for take, this kind of shield cover for the PCB board convenient to use, can be when dismantling housing 2 ejecting frame 1 outward through above-mentioned subassembly, be convenient for dismantle, thereby be favorable to follow-up to the maintenance to housing 9, and can utilize a plurality of ejector pins 14 to form the support to housing 2 after the installation, can further improve anti-sealing effect in the mounting, can further improve the sealing effect to a plurality of sealing strips 11 simultaneously, thereby the sealed joint strip has improved the effect to the sealing joint 11.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A shield cover for PCB board, its characterized in that includes frame (1), housing (2) and PCB mainboard (9), the inner bottom fixed mounting of frame (1) has a plurality of mounting panels (10), and is a plurality of equal fixed mounting in mounting panel (10) top has stand (13), a plurality of equal sliding connection has slide (16) in stand (13), a plurality of equal fixed mounting in the bottom of slide (16) has spring (15), a plurality of equal fixed mounting in the bottom of stand (13) in the bottom of spring (15), a plurality of equal fixed mounting in the top of slide (16) has ejector pin (14), a plurality of outside stand (13) are all extended on the top of ejector pin (14), the equal fixed mounting in both sides of housing (2) has fixture block (5), the both sides of frame (1) all are provided with draw-in groove (6), fixture block (5) joint is in draw-in groove (6), the front and back portion that the top of frame (1) is located every fixture block (5) all rotates and is connected with gag lever (4), two the bottom that all is close to each other one side of gag lever (5).

2. The shielding cover for the PCB according to claim 1, wherein corner clamping slits (8) are reserved at four corners of the housing (2), sealing clamping strips (11) are fixedly installed at the positions, corresponding to the corner clamping slits (8) on the housing (2), in the frame (1), and the sealing clamping strips (11) are respectively clamped in the corresponding corner clamping slits (8).

3. The shielding cover for the PCB according to claim 2, wherein the top ends of the sealing clamping strips (11) extend out of the frame (1), and the side, far away from the housing (2), of the sealing clamping strips (11) is fixedly provided with a side blocking frame (3).

4. A shielding can for a PCB board according to claim 3, characterized in that a plurality of the side shelves (3) are each provided in an L-shape.

5. The shielding cover for the PCB according to claim 1, wherein rubber blocks (12) are fixedly arranged at positions, corresponding to the plurality of ejector rods (14), of the inner top end of the housing (2), and the bottom ends of the plurality of rubber blocks (12) are respectively abutted against the corresponding ejector rods (14).

6. A shielding can for a PCB board according to claim 1, wherein perforations (17) are reserved on the PCB main board (9) at the corresponding plurality of posts (13), and the corresponding perforations (17) are penetrated by the plurality of posts (13).

7. The shielding cover for the PCB according to claim 1, wherein a plurality of the limit rods (4) are respectively reserved with a buckling groove (7).