CN216357842U

CN216357842U - Circuit board with anti-electromagnetic interference function

Info

Publication number: CN216357842U
Application number: CN202122916979.5U
Authority: CN
Inventors: 方芳; 王少雨; 李山甲; 王国田
Original assignee: Shenzhen Xinhongju Electronics Co ltd
Current assignee: Shenzhen Xinhongju Electronics Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-19
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a circuit board with an anti-electromagnetic interference function, relates to the technical field of circuit boards, and aims to solve the problems that the existing circuit board is poor in anti-electromagnetic interference capability, does not have a protection function, is easy to damage a circuit board and reduces the service life of the circuit board when in use. The device not only can resist electromagnetic interference, improve the working efficiency of the circuit board, but also improves the heat dissipation effect of the circuit board, can also protect and absorb shock of the circuit board, and prolongs the service life of the circuit board.

Description

Circuit board with anti-electromagnetic interference function

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a circuit board with an anti-electromagnetic interference function.

Background

The circuit board can make the circuit miniaturized, directly perceived, plays important effect to fixed circuit's batch production and optimization electrical apparatus overall arrangement. In the era of rapid development of electronic technology, almost every family has several electronic products, and the circuit board is an essential accessory in modern electronic equipment.

When the circuit board is used, the anti-electromagnetic interference capability of the circuit board is poor, when the circuit board is in a strong environment of electromagnetic interference, the circuit board can be greatly influenced to work, even the circuit board is burnt, a plurality of electronic components are installed on the circuit board, when the circuit board is collided, the electronic components can be damaged, the circuit board is damaged, the service life of the circuit board is shortened, and the loss of a user is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a circuit board with an anti-electromagnetic interference function, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the following technical scheme:

circuit board with anti-electromagnetic interference function, including the protective housing, a plurality of louvres have all been seted up to the both sides of the protective housing of spending, the top of protective housing articulates there is the apron, one side of apron is provided with two fixed subassemblies, the inside of protective housing is provided with the mounting panel, the top of mounting panel is provided with the circuit board, the mounting panel passes through screwed connection with the circuit board, the below of mounting panel is provided with two sets of damper, damper is the spring cup joint structure of activity regulation.

Preferably, the protective housing is provided with five layers, the protective housing includes protective housing, protective housing is provided with anti-interference layer in one side inwards, anti-interference layer's opposite side is provided with the protection inner shell, all be provided with first layer of pasting between protective housing and the anti-interference layer and between protective housing and the protection inner shell.

Preferably, the fixed subassembly includes the draw-in groove, the draw-in groove is seted up in one side of apron top, draw-in groove swing joint has the fixture block, the other end fixedly connected with extension spring of fixture block, the below of extension spring sets up the installation piece, the top of installation piece is seted up flutedly, the below of extension spring is connected with the recess, the installation piece is articulated mutually with one side of protective housing.

Preferably, fixed loop bars are all installed in the four corners of apron below, the internally mounted of fixed loop bar has first spring, the below of first spring is connected with the movable rod, the lower extreme of movable rod is provided with the rubber pad, the rubber pad pastes with the fixed slot mutually, the top at the mounting panel is seted up to the fixed slot.

Preferably, the circuit board includes the cover film, the cover film sets up in the top and the below of circuit board, the below the top of cover film is provided with the heat dissipation layer, the top on heat dissipation layer is provided with the second and pastes the layer, the layer is pasted to the second and is provided with two, the top that the layer was pasted to the second is provided with the shielding layer, the top of shielding layer is connected with another second and pastes the layer, another the top that the layer was pasted to the second is provided with the insulating layer, the insulating layer top is connected with the cover film on upper strata.

Preferably, a plurality of radiating rods are connected to two sides of the upper portion of the radiating layer, the radiating rods are placed inside the radiating grooves, and the radiating grooves penetrate through the upper portion of the circuit board.

Preferably, damper includes first fixed block, first fixed block is provided with two, and is the symmetric distribution, first fixed block sets up the below at the mounting panel, first fixed block swing joint has the connecting block, the other end swing joint of connecting block has the movable block, two the movable block is movable respectively and is cup jointed at the outside both ends of gag lever post, the second fixed block is all installed at the both ends of gag lever post, second fixed block below and the inside bottom fixed connection of guard box, install the second spring between movable block and the second fixed block, the second spring cup joints the outside at the gag lever post.

Preferably, the connecting groove has been seted up to one side of protective housing, the through connection of connecting groove has the movable groove, the movable groove sets up the inside at the protective housing lateral wall, the inside swing joint in movable groove has the fly leaf, the fly leaf is provided with protruding piece towards outer one side.

The utility model has the beneficial effects that:

1. the device moves down in the collision through the mounting panel, drives first fixed block and moves down to make two connecting blocks drive the movable block and remove to the one side of keeping away from relatively, the second spring compression cushions the power that the collision produced, and the second spring drives the mounting panel and resets, thereby reaches absorbing purpose, has improved the life of circuit board, and through the setting of fixture block and draw-in groove, is convenient for fix the position of apron.

2. The device passes through the anti-interference layer that sets up in the protective housing and the shielding layer that sets up in the circuit board for anti-electromagnetic interference has improved the work efficiency of circuit board, and through the protective housing and the apron that set up, both can prevent dust to the circuit board, also can protect the circuit board, and through fixed loop bar and the movable rod that the apron below set up, be convenient for prescribe a limit to the position of circuit board and mounting panel.

In conclusion, the device can resist electromagnetic interference, improve the working efficiency of the circuit board, improve the heat dissipation effect of the circuit board, protect and absorb shock of the circuit board, and prolong the service life of the circuit board.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of a test section according to the present invention.

FIG. 3 is a schematic structural diagram of the mounting board and the circuit board of the present invention.

FIG. 4 is a schematic view of the structure at A in FIG. 1 according to the present invention.

FIG. 5 is a schematic view of the structure of FIG. 2 at B according to the present invention.

Reference numbers in the figures: 1. a protective box; 101. a protective housing; 102. an anti-interference layer; 103. a first adhesive layer; 104. a protective inner shell; 2. a cover plate; 3. a fixing assembly; 301. a card slot; 302. a clamping block; 303. a tension spring; 304. mounting blocks; 4. fixing the loop bar; 5. a first spring; 6. a movable rod; 7. mounting a plate; 8. fixing grooves; 9. a circuit board; 901. covering the film; 902. a second adhesive layer; 903. a heat dissipation layer; 904. a heat dissipation rod; 905. a heat sink; 906. a shielding layer; 907. an insulating layer; 10. a shock absorbing assembly; 1001. a first fixed block; 1002. connecting blocks; 1003. a movable block; 1004. a second spring; 1005. a limiting rod; 1006. a second fixed block; 11. connecting grooves; 12. a movable groove; 13. a movable plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example 1

Referring to fig. 1 and 2, the present embodiment provides a circuit board with anti-electromagnetic interference function, including a protective box 1, wherein two sides of the protective box 1 are respectively provided with a plurality of heat dissipation holes for dissipating heat of a device, a cover plate 2 is hinged above the protective box 1, one side of the cover plate 2 is provided with two fixing components 3 for fixing the cover plate 2, the protective box 1 is internally provided with a mounting plate 7 for mounting a circuit board 9, the circuit board 9 is arranged above the mounting plate 7, the mounting plate 7 is connected with the circuit board 9 through screws for fixing the circuit board 9, two sets of damping components 10 are arranged below the mounting plate 7, the damping components 10 are movably adjusted spring sleeving structures, the damping components 10 include first fixing blocks 1001, two first fixing blocks 1001 are arranged and symmetrically distributed, the first fixing blocks 1001 are arranged below the mounting plate 7, the first fixed block 1001 is movably connected with a connecting block 1002, the other end of the connecting block 1002 is movably connected with a movable block 1003, the movable blocks 1003 are movably sleeved at two ends of the outer portion of a limiting rod 1005 respectively, second fixed blocks 1006 are installed at two ends of the limiting rod 1005, the lower portion of each second fixed block 1006 is fixedly connected with the bottom of the inner portion of the protection box 1, a second spring 1004 is installed between each movable block 1003 and the corresponding second fixed block 1006, the second springs 1004 are sleeved on the outer portion of the limiting rod 1005 and move downwards in a collision through the mounting plate 7 to drive the first fixed blocks 1001 to move downwards, so that the two connecting blocks 1002 drive the movable blocks 1003 to move towards one side far away from the corresponding blocks, the second springs 1004 compress to buffer force generated by the collision, and the second springs 1004 drive the mounting plate 7 to reset, and accordingly the purpose of shock absorption is achieved.

As shown in fig. 2 and 5, the protective box 1 has five layers, the protective box 1 includes a protective outer shell 101 for protecting the internal devices, an anti-interference layer 102 is disposed on one inward side of the protective outer shell 101 for resisting external electromagnetic interference, a protective inner shell 104 is disposed on the other side of the anti-interference layer 102, first adhesive layers 103 are disposed between the protective outer shell 101 and the anti-interference layer 102 and between the protective outer shell 101 and the protective inner shell 104, the circuit board 9 includes a cover film 901, the cover film 901 is disposed above and below the circuit board 9, a heat dissipation layer 903 is disposed above the cover film 901 below, a plurality of heat dissipation rods 904 are connected to two sides above the heat dissipation layer 903, the heat dissipation rods 904 are disposed inside heat dissipation grooves 905, the heat dissipation grooves 905 penetrate through the circuit board 9, and the circuit board 9 is in the operation process, heat transfer to heat dissipation layer 903, heat dissipation layer 903 gives the heat dissipation pole 904 of its top with heat transfer again, because of heat dissipation pole 904 passes through radiating groove 905 and air contact, is convenient for dispel the heat fast, heat dissipation layer 903's top is provided with the second and pastes layer 902, layer 902 is pasted to the second is provided with two, the top that layer 902 was pasted to the second is provided with shielding layer 906 for again anti-electromagnetic interference is convenient for improve anti-electromagnetic interference's effect, shielding layer 906's top is connected with another second and pastes layer 902, another the top that layer 902 was pasted to the second is provided with insulating layer 907, insulating layer 907 top is connected with the cover film 901 on upper strata.

As shown in fig. 1, 3 and 4, the fixing assembly 3 includes a clamping groove 301, the clamping groove 301 is formed in one side of the upper portion of the cover plate 2, the clamping groove 301 is movably connected with a clamping block 302, the other end of the clamping block 302 is fixedly connected with a tension spring 303, an installation block 304 is arranged below the tension spring 303, a groove is formed above the installation block 304, the lower portion of the tension spring 303 is connected with the groove, the installation block 304 is hinged with one side of the protection box 1, the clamping block 302 is pulled, the tension spring 303 is stretched, meanwhile, the clamping block 302 is rotated, so that one end of the clamping block 302 is clamped into the clamping groove 301 to fix the position of the cover plate 2, the fixing loop bars 4 are mounted at four corners of the lower portion of the cover plate 2, the first spring 5 is mounted inside the fixing loop bar 4, the movable rod 6 is connected below the first spring 5, and a rubber pad is arranged at the lower end of the movable rod 6, the rubber pad pastes with fixed slot 8 mutually, fixed slot 8 is seted up in the top of mounting panel 7, covers apron 2, and fixed slot 8 is gone into to the lower extreme card of movable rod 6, and the rubber pad that the 6 lower extremes of movable rod set up is hugged closely with the bottom of fixed slot 8, and first spring 5 shrink for further inject the position of mounting panel 7 and circuit board 9.

Example 2

The difference from example 1 is: as shown in fig. 1, fig. 2 and fig. 5, a connection groove 11 is provided at one side of the protection box 1, a movable groove 12 is connected to the connection groove 11, the movable groove 12 is provided inside a side wall of the protection box 1, a movable plate 13 is movably connected inside the movable groove 12, a protruding block is provided at one side of the movable plate 13 facing outward, and the movable plate 13 is moved in the movable groove 12 by moving the protruding block provided at one side of the movable plate 13 for connecting an external line.

The working principle of the utility model is as follows: when the device is used, firstly, a circuit board 9 provided with electronic components is placed on a mounting plate 7, four fixing screws are respectively placed in round holes formed in four corners of the circuit board 9 and are in threaded connection with the mounting plate 7 through the round holes for fixing the position of the circuit board 9, then a cover plate 2 is closed, a clamping block 302 is pulled, a tension spring 303 is stretched, meanwhile, the clamping block 302 is rotated, one end of the clamping block 302 is clamped into a clamping groove 301 to fix the position of the cover plate 2, meanwhile, the lower end of a movable rod 6 is clamped into a fixed groove 8, a rubber pad arranged at the lower end of the movable rod 6 is tightly attached to the bottom of the fixed groove 8, a first spring 5 contracts and is used for further limiting the positions of the mounting plate 7 and the circuit board 9, and a user can move a movable plate 13 in a movable groove 12 by moving a raised block arranged on one side of the movable plate 13 as required, used for connecting external lines;

when the device receives the collision, mounting panel 7 moves down, drive first fixed block 1001 and move down, thereby make two connecting blocks 1002 drive two movable blocks 1003 and move to the both sides of keeping away from relatively, the shrink of second spring 1004, cushion what the collision produced, simultaneously, first spring 5 is tensile, drive movable rod 6 and move down, continue to paste with fixed slot 8, prescribe a limit to the position of mounting panel 7, prevent at the in-process of collision, the removal is controlled to mounting panel 7, influence the effect of device, then second spring 1004 resets, drive mounting panel 7 and reset, thereby carry out the shock attenuation to circuit board 9, circuit board 9 is at the in-process of operation, heat transfer is to heat dissipation layer 903, heat dissipation layer 903 again with heat transfer for the heat dissipation pole 904 of its top, because of heat dissipation pole 904 through heat dissipation groove 905 and air contact, be convenient for quick heat dissipation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Circuit board with anti-electromagnetic interference function, including protective housing (1), its characterized in that, a plurality of louvres have all been seted up to the both sides of the protective housing (1) of spending, the top of protective housing (1) articulates there is apron (2), one side of apron (2) is provided with two fixed subassemblies (3), the inside of protective housing (1) is provided with mounting panel (7), the top of mounting panel (7) is provided with circuit board (9), screw connection is passed through with circuit board (9) mounting panel (7), the below of mounting panel (7) is provided with two sets of damper assembly (10), damper assembly (10) are the spring cup joint structure of activity regulation.

2. The circuit board with the anti-electromagnetic interference function according to claim 1, wherein the protective case (1) is provided with five layers, the protective case (1) comprises a protective outer shell (101), an anti-interference layer (102) is arranged on one inward side of the protective outer shell (101), a protective inner shell (104) is arranged on the other side of the anti-interference layer (102), and first adhesive layers (103) are arranged between the protective outer shell (101) and the anti-interference layer (102) and between the protective outer shell (101) and the protective inner shell (104).

3. The circuit board with the anti-electromagnetic interference function according to claim 1, wherein the fixing assembly (3) comprises a clamping groove (301), the clamping groove (301) is formed in one side above the cover plate (2), a clamping block (302) is movably connected to the clamping groove (301), a tension spring (303) is fixedly connected to the other end of the clamping block (302), a mounting block (304) is arranged below the tension spring (303), a groove is formed in the upper portion of the mounting block (304), the lower portion of the tension spring (303) is connected with the groove, and the mounting block (304) is hinged to one side of the protection box (1).

4. The circuit board with the anti-electromagnetic interference function according to claim 1, wherein fixed loop bars (4) are installed at four corners below the cover plate (2), a first spring (5) is installed inside the fixed loop bars (4), a movable rod (6) is connected below the first spring (5), a rubber pad is arranged at the lower end of the movable rod (6), the rubber pad is attached to the fixed groove (8), and the fixed groove (8) is arranged above the mounting plate (7).

5. The circuit board with the anti-electromagnetic interference function according to claim 1, wherein the circuit board (9) comprises cover films (901), the cover films (901) are disposed above and below the circuit board (9), a heat dissipation layer (903) is disposed below the cover films (901), a second adhesive layer (902) is disposed above the heat dissipation layer (903), two second adhesive layers (902) are disposed, a shielding layer (906) is disposed above the second adhesive layer (902), another second adhesive layer (902) is connected above the shielding layer (906), an insulating layer (907) is disposed above the other second adhesive layer (902), and an upper cover film (901) is connected above the insulating layer (907).

6. The circuit board with the anti-electromagnetic interference function according to claim 5, wherein a plurality of heat dissipation rods (904) are connected to two sides above the heat dissipation layer (903), the heat dissipation rods (904) are placed inside heat dissipation grooves (905), and the heat dissipation grooves (905) penetrate through the top of the circuit board (9).

7. The circuit board with anti-electromagnetic interference function according to claim 1, the shock absorption assembly (10) comprises a first fixing block (1001), two first fixing blocks (1001) are arranged, and are symmetrically distributed, the first fixed block (1001) is arranged below the mounting plate (7), the first fixed block (1001) is movably connected with a connecting block (1002), the other end of the connecting block (1002) is movably connected with movable blocks (1003), the two movable blocks (1003) are respectively movably sleeved at two ends of the outer part of a limiting rod (1005), two ends of the limiting rod (1005) are respectively provided with a second fixing block (1006), the lower part of the second fixing block (1006) is fixedly connected with the bottom inside the protective box (1), a second spring (1004) is arranged between the movable block (1003) and the second fixed block (1006), and the second spring (1004) is sleeved outside the limiting rod (1005).

8. The circuit board with the anti-electromagnetic interference function according to claim 1, wherein one side of the protective case (1) is provided with a connecting groove (11), the connecting groove (11) is connected with a movable groove (12) in a penetrating manner, the movable groove (12) is arranged inside a side wall of the protective case (1), the movable groove (12) is movably connected with a movable plate (13) inside, and the movable plate (13) is provided with a protruding block on the outward side.