CN216123182U

CN216123182U - Computer circuit board with anti-electromagnetic interference function

Info

Publication number: CN216123182U
Application number: CN202122492509.0U
Authority: CN
Inventors: 叶雨森; 叶雨芬
Original assignee: Henghai Electronics Shenzhen Co ltd
Current assignee: Henghai Electronics Shenzhen Co ltd
Priority date: 2021-10-17
Filing date: 2021-10-17
Publication date: 2022-03-22
Anticipated expiration: 2031-10-17

Abstract

The utility model discloses a computer circuit board with an anti-electromagnetic interference function, which comprises a bottom plate, wherein a shell is clamped at the top of the bottom plate, a circuit board body is clamped at the center of the top of the bottom plate, a fixing mechanism is fixedly installed at one side of the top of an inner cavity of the shell, a filter is arranged in the fixing mechanism, and a shielding wire pipe is fixedly installed at one end of the filter; by arranging the fixing mechanism, the shielding wire tube and the sleeve, the filter can be conveniently installed and detached while being limited; through the matched use of the shielding wire tube and the wire inlet tube, the gap between the cable and the shell can be reduced, and the anti-interference effect is improved; by arranging the detachable heat dissipation mechanism, the heat dissipation mechanism can be conveniently detached and installed while the circuit board body is cooled; insulating tuber pipe and insulator foot can prevent to disturb circuit board body when the fan operates.

Description

Computer circuit board with anti-electromagnetic interference function

Technical Field

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

Background

The circuit board can be called a printed circuit board or a printed circuit board, on the most basic PCB, parts are concentrated on one side, and wires are concentrated on the other side, and because the wires are only present on one side, the PCB is called a single-sided circuit board, and the computer circuit board is a part applied to a computer.

When the existing computer circuit board is used, the anti-electromagnetic interference performance is poor, when the filter is detached and maintained, the mounting position of the filter is prone to deviation, after the mounting deviation occurs, the anti-electromagnetic interference effect is prone to being influenced, the interior of the filter is lack of a structure for limiting the filter and sealing a cable through hole, and therefore the computer circuit board with the anti-electromagnetic interference function needs to be provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a computer circuit board with an anti-electromagnetic interference function, which has the advantages of good sealing performance and convenience in disassembly and maintenance, and solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a computer circuit board that possesses anti-electromagnetic interference function, includes the bottom plate, the top joint of bottom plate has the casing, the center department joint at bottom plate top has the circuit board body, one side fixed mounting at casing inner chamber top has fixed establishment, fixed establishment's inside is provided with the wave filter, the one end fixed mounting of wave filter has the shielding spool, the inner chamber of casing and the corresponding fixed mounting that is located the shielding spool have the sleeve pipe, the one end that the wave filter was kept away from to the shielding spool slides and extends to the sheathed tube inner chamber, one side intercommunication of casing has the inlet wire pipe, the one end of inlet wire pipe slides and runs through the casing and extends to the one end laminating of sheathed tube inside and inlet wire pipe.

Preferably, the top of the shell, which is far away from one side of the filter, is provided with a recess, the heat dissipation mechanism is fixedly installed inside the recess, and the air inlet end of the heat dissipation mechanism is communicated with the inner cavity of the shell.

Preferably, the heat dissipation mechanism comprises a fan, an air inlet end of the fan is communicated with an inner cavity of the shell, an insulating base is fixedly mounted at the bottom of the fan, and the bottom of the insulating base is bolted to the surface of the shell.

Preferably, the air inlet end of the fan is communicated with an insulating air pipe, one side of the shell is provided with a groove matched with the insulating air pipe, and one end of the insulating air pipe extends to the inner cavity of the groove and is attached to the inner wall of the groove.

Preferably, the inner cavity of the groove is provided with an air hole, and one end of the insulating air pipe is communicated with the inner cavity of the shell through the air hole.

Preferably, the surface of the insulating air pipe is sleeved with a sealing ring, and the surface of the sealing ring is attached to the inner wall of the groove.

Preferably, the fixing mechanism comprises a frame, the frame is arranged above the outside of the filter, the top of the frame is welded with the top of the shell, the front side and the rear side of the frame are respectively bolted with a screw rod, one end of the screw rod penetrates through the frame and extends to the inside of the frame, a clamping plate is rotatably arranged on the inside of the frame, and the surface of the clamping plate is attached to the surface of the filter.

Preferably, a sponge plate is bonded on the inner side of the clamping plate, and the surface of the sponge plate is attached to the surface of the filter.

Preferably, the two sides of the top of the bottom plate are fixedly provided with clamping blocks, the top of the shell is provided with a clamping groove matched with the clamping blocks, and one end of each clamping block is clamped with the bottom of the shell through the clamping groove.

Preferably, the bottom of the bottom plate is bolted with screws, and the bottom plate is bolted with the bottom of the shell through the screws.

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

1. by arranging the fixing mechanism, the shielding wire tube and the sleeve, the filter can be conveniently installed and detached while being limited; through the cooperation that sets up shielding spool and inlet wire pipe, can reduce the gap between cable and the casing, improve anti-interference effect.

2. The detachable heat dissipation mechanism is arranged, so that the heat dissipation mechanism can be conveniently detached and installed while the circuit board body is cooled; insulating tuber pipe and insulator foot can prevent to disturb circuit board body when the fan operates.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of the area A of FIG. 2 according to the present invention;

FIG. 4 is an enlarged view of a portion of the area B of FIG. 2 according to the present invention;

fig. 5 is a side sectional view of the securing mechanism of the present invention.

In the figure: 1. a base plate; 2. a housing; 3. a circuit board body; 4. a fixing mechanism; 5. a filter; 6. shielding the line pipe; 7. a sleeve; 8. a wire inlet pipe; 9. a heat dissipation mechanism; 10. a fan; 11. an insulating base; 12. insulating the air duct; 13. a groove; 14. air holes; 15. a seal ring; 16. a frame; 17. a screw; 18. a splint; 19. a sponge plate; 20. a clamping block; 21. a card slot; 22. and (4) screws.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the present invention provides a technical solution: the utility model provides a computer circuit board that possesses anti-electromagnetic interference function, includes bottom plate 1, and the top joint of bottom plate 1 has casing 2, and the equal fixed mounting in both sides at bottom plate 1 top has fixture block 20, and the draw-in groove 21 with fixture block 20 looks adaptation is seted up at the top of casing 2, and the bottom joint of draw-in groove 21 and casing 2 is passed through to fixture block 20's one end. Through the cooperation of setting up draw-in groove 21 and fixture block 20 and using, can fix a position bottom plate 1 when the installation is convenient.

The bottom of the bottom plate 1 is bolted with screws 22, and the bottom plate 1 is bolted with the bottom of the shell 2 through the screws 22. By providing the screw 22, the screw 22 can fix the bottom plate 1 and the housing 2, and is convenient to detach.

The centre department joint at bottom plate 1 top has circuit board body 3, and one side fixed mounting at 2 inner chamber tops of casing has fixed establishment 4, and the inside of fixed establishment 4 is provided with wave filter 5. The fixing mechanism 4 is provided for fixing the filter 5.

Referring to fig. 5, the fixing mechanism 4 includes a frame 16, the frame 16 is disposed above the outside of the filter 5, the top of the frame 16 is welded to the top of the housing 2, screws 17 are bolted to both sides of the frame 16, one end of each screw 17 penetrates through the frame 16 and extends into the frame 16, a clamp plate 18 is rotatably mounted on the frame 16, and the surface of the clamp plate 18 is attached to the surface of the filter 5. By rotating the screw rod 17, the screw rod 17 rotates and simultaneously drives the clamping plate 18 to move, so that the filter 5 can be fixed, and meanwhile, the disassembly and the assembly are convenient.

A sponge plate 19 is bonded to the inner side of the splint 18, and the surface of the sponge plate 19 is bonded to the surface of the filter 5. By providing the sponge plate 19, wear occurring after the chucking plate 18 comes into contact with the filter 5 can be reduced.

Referring to fig. 2, the filter 5 is a filter circuit composed of a capacitor, an inductor and a resistor, and the filter 5 can effectively filter a frequency point of a specific frequency in the power line or frequencies other than the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.

One end of the filter 5 is fixedly provided with a shielding wire tube 6, the shielding wire tube 6 comprises a shielding wire, the shielding wire is a conducting wire with a metal braided fabric shell which is specially adopted for reducing the influence of an external electromagnetic field on a power supply or a communication line, and the shielding wire also has the function of preventing the line from radiating electromagnetic energy outwards.

The inner chamber of casing 2 and the department fixed mounting that corresponds that is located shielding spool 6 have sleeve pipe 7, and the one end that filter 5 was kept away from to shielding spool 6 slides and extends to the inner chamber of sleeve pipe 7, and one side intercommunication of casing 2 has inlet wire pipe 8, and the one end of inlet wire pipe 8 slides and runs through casing 2 and extend to the inside of sleeve pipe 7 and the one end laminating of inlet wire pipe 8. The inlet conduit 8 is used to facilitate the connection of cables through the housing 2 to the filter 5. The sleeve 7 is used for connecting the wire inlet pipe 8 with the shielding wire pipe 6, and the gap when the cable passes through the shell 2 is reduced and the electromagnetic interference is reduced by matching the wire inlet pipe 8, the sleeve 7 and the shielding wire pipe 6.

Referring to fig. 3 and 4, a recess is formed in the top of the housing 2 on the side away from the filter 5, a heat dissipation mechanism 9 is fixedly installed in the recess, and an air inlet end of the heat dissipation mechanism 9 is communicated with an inner cavity of the housing 2. The heat dissipation mechanism 9 comprises a fan 10, an air inlet end of the fan 10 is communicated with an inner cavity of the shell 2, an insulating base 11 is fixedly installed at the bottom of the fan 10, and the bottom of the insulating base 11 is bolted to the surface of the shell 2. The bottom of the bottom plate 1 and the side far away from the fan 10 are embedded with a filter screen for facilitating the outside air to go into the shell 2. By starting the fan 10, the fan 10 forms an air flow in the housing 2, and the air flow takes away heat emitted when the circuit board body 3 is operated and is discharged to the outside of the housing 2 through the fan 10.

The air inlet end of the fan 10 is communicated with an insulating air pipe 12, one side of the shell 2 is provided with a groove 13 matched with the insulating air pipe 12, and one end of the insulating air pipe 12 extends to the inner cavity of the groove 13 and is attached to the inner wall of the groove 13. By providing the insulating air duct 12, electromagnetic conduction can be reduced. An air hole 14 is formed in the inner cavity of the groove 13, and one end of the insulating air pipe 12 is communicated with the inner cavity of the shell 2 through the air hole 14. And meanwhile, the matching air holes 14 can realize the circulation of air.

The surface of the insulating air pipe 12 is sleeved with a sealing ring 15, and the surface of the sealing ring 15 is attached to the inner wall of the groove 13. By providing the seal ring 15, the sealing property of the connection between the insulating air duct 12 and the groove 13 can be improved. Meanwhile, the connection mode between the heat dissipation mechanism 9 and the shell 2 is a detachable connection mode, so that the disassembly and maintenance can be conveniently carried out.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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

1. The utility model provides a computer circuit board that possesses anti-electromagnetic interference function, includes bottom plate (1), its characterized in that: the top joint of bottom plate (1) has casing (2), the center department joint at bottom plate (1) top has circuit board body (3), one side fixed mounting at casing (2) inner chamber top has fixed establishment (4), the inside of fixed establishment (4) is provided with wave filter (5), the one end fixed mounting of wave filter (5) has shielding spool (6), the inner chamber of casing (2) and the department fixed mounting that corresponds that is located shielding spool (6) have sleeve pipe (7), the one end that wave filter (5) were kept away from in shielding spool (6) slides and extends to the inner chamber of sleeve pipe (7), one side intercommunication of casing (2) has inlet wire pipe (8), the one end of inlet wire pipe (8) slides and runs through casing (2) and extends to the inside of sleeve pipe (7) and the one end laminating of inlet wire pipe (8).

2. The computer circuit board with anti-electromagnetic interference function of claim 1, wherein: the top of one side of the shell (2) far away from the filter (5) is provided with a recess, a heat dissipation mechanism (9) is fixedly mounted inside the recess, and the air inlet end of the heat dissipation mechanism (9) is communicated with the inner cavity of the shell (2).

3. The computer circuit board with anti-electromagnetic interference function of claim 2, wherein: the heat dissipation mechanism (9) comprises a fan (10), the air inlet end of the fan (10) is communicated with the inner cavity of the shell (2), an insulating base (11) is fixedly mounted at the bottom of the fan (10), and the bottom of the insulating base (11) is bolted to the surface of the shell (2).

4. The computer circuit board with anti-electromagnetic interference function of claim 3, wherein: the air inlet end of the fan (10) is communicated with an insulating air pipe (12), one side of the shell (2) is provided with a groove (13) matched with the insulating air pipe (12), and one end of the insulating air pipe (12) extends to the inner cavity of the groove (13) and is attached to the inner wall of the groove (13).

5. The computer circuit board with anti-electromagnetic interference function of claim 4, wherein: an air hole (14) is formed in the inner cavity of the groove (13), and one end of the insulating air pipe (12) is communicated with the inner cavity of the shell (2) through the air hole (14).

6. The computer circuit board with anti-electromagnetic interference function of claim 5, wherein: and a sealing ring (15) is sleeved on the surface of the insulating air pipe (12), and the surface of the sealing ring (15) is attached to the inner wall of the groove (13).

7. The computer circuit board with anti-electromagnetic interference function of claim 1, wherein: fixed establishment (4) include frame (16), frame (16) set up in the outside top of wave filter (5), the top of frame (16) and the top welding of casing (2), screw rod (17) have all been bolted to both sides around frame (16), the one end of screw rod (17) runs through frame (16) and extends to the internal rotation of frame (16) and installs splint (18), the surface laminating of splint (18) and wave filter (5).

8. The computer circuit board with anti-electromagnetic interference function of claim 7, wherein: the inner side of the clamping plate (18) is bonded with a sponge plate (19), and the surface of the sponge plate (19) is attached to the surface of the filter (5).

9. The computer circuit board with anti-electromagnetic interference function of claim 1, wherein: the clamping device is characterized in that clamping blocks (20) are fixedly mounted on two sides of the top of the bottom plate (1), clamping grooves (21) matched with the clamping blocks (20) are formed in the top of the shell (2), and one ends of the clamping blocks (20) are connected with the bottom of the shell (2) in a clamped mode through the clamping grooves (21).

10. The computer circuit board with anti-electromagnetic interference function of claim 1, wherein: the bottom of the bottom plate (1) is bolted with a screw (22), and the bottom plate (1) is bolted with the bottom of the shell (2) through the screw (22).