CN112654139B

CN112654139B - Circuit board convenient to fixed mounting

Info

Publication number: CN112654139B
Application number: CN202011520439.9A
Authority: CN
Inventors: 王建超
Original assignee: Anhui Zhanxin Electronic Co ltd
Current assignee: Guangde Zhanxin Electronic Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-12-07
Anticipated expiration: 2040-12-21
Also published as: CN112654139A

Abstract

The invention relates to the technical field of circuit boards, in particular to a circuit board convenient to fixedly install, wherein the circuit board is assembled above a support, the circuit board is fixedly connected with the support through a disassembling and assembling mechanism, a heating element independent heat dissipation assembly is assembled above the circuit board in a heating element installation area, and a damping part is arranged between the support and the circuit board. The circuit board is novel in design and simple in structure, the circuit board is convenient to mount and dismount through the dismounting mechanism, tools are not needed, the dismounting difficulty is reduced, the defect of traditional screw fixation is overcome, the circuit board is more convenient to maintain, the damping part can enable the circuit board to have a certain damping function, the problem that elements fail due to bumping in the conveying process of equipment is avoided, the maintenance cost is reduced, the practicability is improved, the heating element independent radiating assembly can independently radiate elements with high power on the circuit board, the radiating effect is improved, and the due performance of the elements is guaranteed.

Description

Circuit board convenient to fixed mounting

Technical Field

The invention relates to the technical field of circuit boards, in particular to a circuit board convenient to fixedly install.

Background

The circuit board may be referred to as a printed wiring board or printed circuit board, which is commonly mounted inside the equipment control box. The traditional circuit board is fixed in the case by screwing the bolts, the connection mode is simple and convenient, but the circuit board needs to be detached and cleaned at irregular intervals in the using process, the sliding teeth are difficult to fix or detach due to repeated screwing of the screws, the dismounting difficulty is increased, meanwhile, the existing circuit board is slightly insufficient in the aspect of shock absorption, particularly the problem that elements on the circuit board are loosened and failed due to bumping during the transportation of equipment is easily caused, and the maintenance cost is increased, so that technical personnel in the field provide the circuit board convenient for fixed installation, and the problem provided in the background technology is solved.

Disclosure of Invention

The present invention is directed to a circuit board convenient for fixed installation, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the circuit board convenient for fixed installation comprises a circuit board and four supports which are fixed on the inner side of a case in a rectangular array, wherein the circuit board is assembled above the supports, the circuit board is fixedly connected with the supports through a disassembling and assembling mechanism, a heating element independent radiating assembly is assembled above the circuit board in a heating element installation area, and a damping part is arranged between the supports and the circuit board;

the shock absorption part comprises two guide rods and an elastic rubber pad, the guide rods are fixed between the supports on the same side, the elastic rubber pad is fixed at the upper ends of the supports and attached to the lower surface of the circuit board, and three groups of shock absorption assemblies are sleeved outside the guide rods at equal intervals and are fixed to the outer side of the circuit board respectively.

As a further aspect of the invention: the independent heat dissipation assembly of the heating element comprises a heat exchange plate which is attached to the upper surface of the circuit board and is positioned in a heating element installation area, a heat exchange coil is embedded in the heat exchange plate, two ends of the heat exchange plate, which correspond to two ends of the heat exchange coil, are respectively connected with a water inlet and a water return port, a heat conduction plate is fixed above the heat exchange plate, a heat conduction frame in a 7-shaped structure is fixed above the heat conduction plate at the position of a central line, a micro water pump is fixed on the position of the upper surface of the heat conduction plate at the rear side of the heat conduction frame, a water tank is arranged on the position of the upper surface of the heat conduction plate at one side of the micro water pump, 360 cold rows are fixedly installed above the heat conduction frame, heat dissipation fins are fixedly installed on the front side of the heat conduction frame, heat dissipation fans are installed on the front sides of the heat dissipation fins, and the water outlet end of the micro water pump is connected with the water inlet through a water pipe, and the water inlet end of the micro water pump is communicated with the water tank, the water return port is connected with the water inlet end of the 360-degree cold bar through a first return pipe, and the water outlet end of the 360-degree cold bar is connected with the water tank through a second return pipe.

As a further aspect of the invention: the bottom of the micro water pump is packaged through the heat conducting fins, the heat exchange plate, the heat conducting plate and the heat conducting frame are all made of components made of copper silver-plated materials, and the heat exchange coil is made of components made of pure copper materials.

As a further aspect of the invention: the disassembly and assembly mechanism comprises a pin column penetrating through a circuit board and inserted into the inside of a support and three second clamping grooves which are annularly and equidistantly arranged on the side wall of the support, a limiting sheet is fixed at the upper end of the pin column, first clamping grooves with the same size as the pin column are formed in positions, corresponding to the three second clamping grooves, of the side wall of the pin column, a connecting disc is arranged inside the pin column, switching pieces are fixed at positions, corresponding to the three first clamping grooves, of the outer side of the connecting disc, limiting rods connected with the inner wall of the pin column in a sliding mode are fixed between two adjacent switching pieces in the outer side of the connecting disc, clamping rods connected with the inner wall of the pin column in a rotating mode are arranged on the inner side of each switching piece, a tension spring connected with the connecting disc is fixed at one end of each clamping rod, a rotary cap is arranged above each limiting sheet, and a screw rod is fixed at the center of the bottom end of each rotary cap, the bottom end of the screw rod penetrates through the limiting piece, extends into the pin column and is connected with the connecting disc in a rotating mode.

As a further aspect of the invention: the cross-section of round pin post is the hexagon structure, the slot with round pin looks adaptation is seted up to the upper surface of support.

As a further aspect of the invention: the screw rod is connected with the limiting piece in a rotating mode through threads, and a guide groove matched with the pin column is vertically formed in the position, corresponding to the limiting rod, in the pin column.

As a further aspect of the invention: the bradyseism subassembly includes that the symmetry cup joints in the outside compression sleeve of guide arm, two be fixed with compression spring between the compression sleeve, and the top of two compression sleeves is located the one end far away mutually and all is fixed with the connection piece, two the rear side of connection piece all rotates and is connected with the application of force pole, two the other end of application of force pole all rotates and is connected with the cardboard fixed mutually with the circuit board outside.

As a further aspect of the invention: the cardboard is "Contraband" font structure, and the top of cardboard has screwed the bolt through the screw thread, the inboard of cardboard is provided with and rotates the laminating piece that links to each other with the bolt bottom, and the laminating piece is the component of a rubber material.

Compared with the prior art, the invention has the beneficial effects that: the circuit board is novel in design and simple in structure, the circuit board is convenient to mount and dismount through the dismounting mechanism, tools are not needed, the dismounting difficulty is reduced, the defect of traditional screw fixation is overcome, the circuit board is more convenient to maintain, the damping part can enable the circuit board to have a certain damping function, the problem that elements fail due to bumping in the conveying process of equipment is avoided, the maintenance cost is reduced, the practicability is improved, the heating element independent radiating assembly can independently radiate elements with high power on the circuit board, the radiating effect is improved, and the due performance of the elements is guaranteed.

Drawings

FIG. 1 is a schematic view of a circuit board for easy mounting;

FIG. 2 is a schematic structural diagram of an independent heat dissipation assembly for a heat generating component in a circuit board for easy fixed installation;

FIG. 3 is a schematic structural view of a mounting and dismounting mechanism in a circuit board for facilitating fixed mounting;

FIG. 4 is an enlarged schematic view of the circuit board at B in FIG. 3 for easy mounting;

fig. 5 is an enlarged schematic view of the circuit board at a in fig. 1 for easy fixed mounting.

In the figure: 1. a circuit board; 2. the heating element is an independent radiating component; 2-1, heat exchange plates; 2-2, a heat conducting plate; 2-3, a heat radiation fan; 2-4, radiating fins; 2-5, a first return pipe; 2-6, 360 cold discharging; 2-7, a second return pipe; 2-8, a micro water pump; 2-9 parts of water conveying pipe; 2-10 parts of a heat conducting frame; 2-11, heat exchange coil pipe; 3. a limiting sheet; 4. screwing the cap; 5. a support; 6. a guide bar; 7. a first card slot; 8. a pin; 9. an elastic rubber pad; 10. a second card slot; 11. a limiting rod; 12. a connecting disc; 13. a screw; 14. an adapter; 15. an extension spring; 16. a clamping rod; 17. a bolt; 18. clamping a plate; 19. a force application rod; 20. compressing the sleeve; 21. compressing the spring.

Detailed Description

Referring to fig. 1-5, in the embodiment of the present invention, a circuit board convenient for fixed installation includes a circuit board 1 and four supports 5 fixed on the inner side of a chassis in a rectangular array, the circuit board 1 is mounted above the supports 5, and the circuit board 1 and the supports 5 are fixedly connected through a mounting and dismounting mechanism, the mounting and dismounting mechanism includes pins 8 penetrating through the circuit board 1 and inserted into the supports 5, and three second slots 10 annularly and equidistantly formed on the side wall of the supports 5, a limiting plate 3 is fixed on the upper end of the pins 8, first slots 7 having the same size as the pins are formed on the side wall of the pins 8 at positions corresponding to the three second slots 10, a connecting plate 12 is arranged inside the pins 8, adapters 14 are fixed on the outer side of the connecting plate 12 at positions corresponding to the three first slots 7, and a limiting rod 11 slidably connected to the inner wall of the pins 8 is fixed between two adjacent adapters 14 on the outer side of the connecting plate 12, the inner sides of the adapters 14 are rotatably connected with clamping rods 16 attached to the inner walls of the pin columns 8, extension springs 15 connected with the connecting discs 12 are fixed at one ends of the upper portions of the clamping rods 16, screw caps 4 are arranged above the limiting pieces 3, screw rods 13 are fixed at the centers of the bottom ends of the screw caps 4, the bottom ends of the screw rods 13 penetrate through the limiting pieces 3, extend into the pin columns 8 and are rotatably connected with the connecting discs 12, the screw rods 13 are rotatably connected with the limiting pieces 3 through threads, guide grooves matched with the screw rods are vertically formed in the positions, corresponding to the limiting rods 11, in the pin columns 8, the cross sections of the pin columns 8 are of hexagonal structures, slots matched with the pin columns 8 are formed in the upper surfaces of the supports 5, when the rotation caps 4 are rotated anticlockwise during disassembly, the screw rods 13 are driven to rotate after the screw caps 4 rotate, and the screw rods 13 and the limiting pieces 3 rotate due to the threads, so that the screw rods 13 can move upwards along the rotating direction of the threads during rotation, the screw 13 can drive the connecting disc 12 to move upwards synchronously when moving upwards, the connecting disc 12 cannot rotate along with the screw 13 due to the rotating connection of the screw 13 and the connecting disc 12, the connecting disc 12 cannot deflect due to the matching of the limiting rod 11 and the guide groove in the process of moving upwards, and meanwhile, one end of the clamping rod 16 can be driven to move upwards after moving upwards by the connecting disc 12, so that the clamping rod 16 is inclined to move out of the first clamping groove 7 and the second clamping groove 10, the other end of the clamping rod 16 is attached to the inner wall of the pin 8 under the action of the tension spring 15, the locking is released, and the pin 8 can be pulled out at the moment to finish the disassembly;

during installation, the pin column 8 penetrates through the circuit board 1 and is inserted into the slot above the support 5, the screw cap 4 is further rotated clockwise, the screw cap 4 rotates to drive the connecting disc 12 to move downwards through the screw rod 13, the connecting disc 12 moves downwards to drive the clamping rod 16 to slide downwards along the inner wall of the pin column 8, the clamping rod cannot continuously move downwards after being limited when sliding to the first clamping groove 7, the connecting disc 12 continues to move downwards at the moment, and then the clamping rod 16 extends in the direction of the first clamping groove 7 until penetrating through the second clamping groove 10, and the circuit board 1 is fixed.

The heat conduction plate 2-2 is fixed above the heat conduction plate 2-2, a heat conduction frame 2-10 in a 7-shaped structure is fixed above the heat conduction plate 2-2 at the position of the central line, a micro water pump 2-8 is fixed at the position of the rear side of the heat conduction frame 2-10, a water tank is arranged at the position of the upper surface of the heat conduction plate 2-2 at one side of the micro water pump 2-8, the heat conducting frame 2-10 is fixedly provided with 360 cold rows 2-6 above, the front sides of the heat conducting frames 2-10 are fixedly provided with heat radiating fins 2-4, the front sides of the heat radiating fins 2-4 are provided with heat radiating fans 2-3, the water outlet ends of the miniature water pumps 2-8 are connected with a water inlet through water conveying pipes 2-9, the water inlet ends of the miniature water pumps 2-8 are communicated with a water tank, a water return port is connected with the water inlet ends of the 360 cold rows 2-6 through a first return pipe 2-5, the water outlet ends of the 360 cold rows 2-6 are connected with the water tank through a second return pipe 2-7, the bottoms of the miniature water pumps 2-8 are packaged through heat conducting fins, the heat exchange plates 2-1, the heat conducting plates 2-2 and the heat conducting frames 2-10 are all made of silver-plated copper, the heat exchange coils 2-11 are made of pure copper, the heat generated by the high-power element during working can be conducted to the heat exchange plate 2-1, at the moment, the micro water pump 2-8 operates to pump out the cold source in the water tank and transmit the cold source to the heat exchange coil 2-11 along the water pipe 2-9, the cold source in the heat exchange coil 2-11 can continuously absorb the heat in the heat exchange plate 2-1, the cold source after heat exchange enters the 360-degree cold discharge 2-6 along the first return pipe 2-5, the 360-degree cold discharge 2-6 can cool the cold source after heat exchange again and restore the original temperature and return the cold source to the water tank through the second return pipe 2-7 to form liquid circulation heat dissipation, further the residual heat on the surface of the heat exchange plate 2-1 can be transmitted to the heat conduction plate 2-2 and the heat conduction frame 2-10, and then the heat dissipation fan 2-3 is discharged, and the structure can independently dissipate the heat of the element with higher power on the circuit board 1, the heat dissipation effect is improved, and the due performance of the element is ensured.

A damping component is arranged between the support 5 and the circuit board 1, the damping component comprises a guide rod 6 fixed between the two supports 5 on the same side and an elastic rubber cushion 9 fixed at the upper end of the support 5 and jointed with the lower surface of the circuit board 1, three groups of damping components which are respectively fixed with the outer side of the circuit board 1 are sleeved outside the guide rod 6 at equal intervals, the damping components comprise compression sleeves 20 symmetrically sleeved outside the guide rod 6, a compression spring 21 is fixed between the two compression sleeves 20, connecting sheets are fixed at the far ends above the two compression sleeves 20, the rear sides of the two connecting sheets are respectively and rotatably connected with force applying rods 19, the other ends of the two force applying rods 19 are respectively and rotatably connected with clamping plates 18 fixed with the outer side of the circuit board 1, the clamping plates 18 are in Contraband-shaped structures, bolts 17 are screwed above the clamping plates 18 through threads, jointing sheets rotatably connected with the bottom ends of the bolts 17 are arranged on the inner sides of the clamping plates 18, the laminating piece is a rubber material's component, during the assembly, go into the outside of circuit board 1 with cardboard 18 card, it makes laminating circuit board 1 of laminating form fixedly to screw up bolt 17, when transporting the in-process and receiving jolting, circuit board 1 is earlier weakened through the preliminary buffering of elastic rubber pad 9, further circuit board 1 compression elastic rubber pad 9 moves down, shorten the distance between circuit board 1 and the guide arm 6 this moment, two application of force pole 19 relatively rotate at this in-process and realize two compression sleeve 20 and do relative motion, and then through two compression sleeve 20 to compression spring 21 application of force, the big its counteraction is big more greatly for compression spring 21 atress, thereby reach absorbing effect, avoid equipment to transport the problem that the in-process leads to the component to become invalid because of jolting, the maintenance cost is reduced, the practicality has been improved.

The working principle of the invention is as follows: firstly, when the circuit board 1 is disassembled, the screw cap 4 is rotated anticlockwise, the screw cap 4 is rotated to drive the screw 13 to rotate, the screw 13 and the limiting sheet 3 rotate in a threaded manner, so that the screw 13 can move upwards along the rotation direction of the thread when rotating, the screw 13 can drive the connecting disc 12 to move upwards synchronously when moving upwards, the connecting disc 12 cannot rotate along with the screw due to the rotating connection of the screw 13 and the connecting disc 12, the connecting disc 12 cannot deviate through the matching of the limiting rod 11 and the guide groove in the moving upwards process, meanwhile, one end of the clamping rod 16 can be driven to move upwards after moving upwards the connecting disc 12, the clamping rod 16 is inclined to move out of the first clamping groove 7 and the second clamping groove 10, the other end of the clamping rod 16 is attached to the inner wall of the pin column 8 under the action of the tension spring 15, the locking is released, and the pin column 8 can be pulled out at the moment, so that the disassembly is completed;

during installation, the pin 8 penetrates through the circuit board 1 and is inserted into a slot above the support 5, the screw cap 4 is further rotated clockwise, the screw cap 4 rotates and then drives the connecting disc 12 to move downwards through the screw rod 13, the connecting disc 12 moves downwards and then drives the clamping rod 16 to slide downwards along the inner wall of the pin 8, the clamping rod is limited when sliding to the first clamping groove 7 and then cannot move downwards continuously, the connecting disc 12 continues to move downwards at the moment, and the clamping rod 16 further extends along the direction of the first clamping groove 7 until penetrating through the second clamping groove 10, so that the circuit board 1 is fixed;

secondly, when the circuit board 1 is bumped in the conveying process, the circuit board 1 is firstly subjected to primary buffering weakening through the elastic rubber pad 9, the circuit board 1 further compresses the elastic rubber pad 9 to move downwards, the distance between the circuit board 1 and the guide rod 6 is shortened at the moment, the two force application rods 19 rotate relatively to realize that the two compression sleeves 20 move relatively, force is applied to the compression spring 21 through the two compression sleeves 20, the larger the stress of the compression spring 21 is, the larger the reaction effect is, the shock absorption effect is achieved, the problem that elements fail due to bumping in the conveying process of the equipment is solved, the maintenance cost is reduced, and the practicability is improved;

finally, the heat generated by the high-power element during working is conducted to the heat exchange plate 2-1, at the moment, the micro water pump 2-8 operates to pump out the cold source in the water tank and transmit the cold source to the heat exchange coil 2-11 along the water pipe 2-9, the cold source in the heat exchange coil 2-11 can continuously absorb the heat in the heat exchange plate 2-1, the cold source after heat exchange enters the 360-degree cold discharge 2-6 along the first return pipe 2-5, the 360-degree cold discharge 2-6 can cool the cold source after heat exchange again and restore the original temperature and return the cold source to the water tank through the second return pipe 2-7 to form liquid circulation heat dissipation, further, the residual heat on the surface of the heat exchange plate 2-1 can be transmitted to the heat conduction plate 2-2 and the heat conduction frame 2-10, and then the heat dissipation fan 2-3 is discharged, and the structure can independently dissipate the heat of the element with higher power on the circuit board 1, the heat dissipation effect is improved, and the due performance of the element is ensured.

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 the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. The circuit board convenient for fixed installation comprises a circuit board (1) and four supports (5) which are fixed on the inner side of a case in a rectangular array manner, and is characterized in that the circuit board (1) is assembled above the supports (5), the circuit board (1) is fixedly connected with the supports (5) through a disassembling and assembling mechanism, a heating element independent heat dissipation assembly (2) is assembled above the circuit board (1) in a heating element installation area, and a damping part is arranged between the supports (5) and the circuit board (1);

the shock absorption component comprises a guide rod (6) fixed between the two supports (5) on the same side and an elastic rubber cushion (9) fixed at the upper end of each support (5) and attached to the lower surface of the circuit board (1), and three groups of shock absorption components which are respectively fixed with the outer side of the circuit board (1) are sleeved outside the guide rod (6) at equal intervals;

the disassembly and assembly mechanism comprises a pin column (8) penetrating through a circuit board (1) and inserted into the inside of a support (5) and three second clamping grooves (10) which are annularly and equidistantly arranged on the side wall of the support (5), a limiting sheet (3) is fixed at the upper end of the pin column (8), the positions, corresponding to the three second clamping grooves (10), of the side wall of the pin column (8) are provided with first clamping grooves (7) with the same size as the first clamping grooves, a connecting disc (12) is arranged inside the pin column (8), the positions, corresponding to the three first clamping grooves (7), of the outer side of the connecting disc (12) are respectively and fixedly provided with a switching piece (14), a limiting rod (11) connected with the inner wall of the pin column (8) in a sliding mode is arranged between two adjacent switching pieces (14) on the outer side of the connecting disc (12), a clamping rod (16) connected with the inner wall of the pin column (8) in a laminating mode is rotatably arranged on the inner side of the switching piece (14), the top of kelly (16) is located one end department and is fixed with extension spring (15) that link to each other with connection pad (12), the top of spacing piece (3) is provided with revolves cap (4), the bottom center department of revolving cap (4) is fixed with screw rod (13), the bottom of screw rod (13) is run through spacing piece (3) and is extended to round pin post (8) inside and rotate with connection pad (12) and link to each other, the cross-section of round pin post (8) is the hexagon structure, the slot with round pin post (8) looks adaptation is seted up to the upper surface of support (5), rotate through the screw thread between screw rod (13) and spacing piece (3) and link to each other, the guide way rather than the looks adaptation is seted up perpendicularly to the position department that the inside of round pin post (8) corresponds gag lever post (11).

2. The circuit board convenient for fixed installation according to claim 1, wherein the heating element independent heat dissipation assembly (2) comprises a heat exchange plate (2-1) which is attached to the upper surface of the circuit board (1) and is located in a heating element installation area, a heat exchange coil (2-11) is embedded in the heat exchange plate (2-1), a water inlet and a water return port are respectively connected to two ends of the heat exchange plate (2-1) corresponding to the two ends of the heat exchange coil (2-11), a heat conduction plate (2-2) is fixed above the heat exchange plate (2-1), a heat conduction frame (2-10) in a 7-shaped structure is fixed above the heat conduction plate (2-2) at a center line position, and a micro water pump (2-8) is fixed at a rear position of the heat conduction frame (2-10) at an upper surface of the heat conduction plate (2-2), a water tank is arranged at the position of one side of the micro water pump (2-8) on the upper surface of the heat conducting plate (2-2), a 360-degree cold drain (2-6) is fixedly arranged above the heat conducting frame (2-10), and the front side of the heat conduction frame (2-10) is fixedly provided with heat dissipation fins (2-4), the front side of the heat dissipation fins (2-4) is provided with a heat dissipation fan (2-3), the water outlet end of the micro water pump (2-8) is connected with the water inlet through a water pipe (2-9), the water inlet end of the micro water pump (2-8) is communicated with the water tank, the water return port is connected with the water inlet end of the 360-degree cold bar (2-6) through a first return pipe (2-5), the water outlet end of the 360-degree cold row (2-6) is connected with the water tank through a second return pipe (2-7).

3. The circuit board convenient for fixed installation according to claim 2, wherein the bottom of the micro water pump (2-8) is encapsulated by a heat conducting fin, the heat exchange plate (2-1), the heat conducting plate (2-2) and the heat conducting frame (2-10) are all made of copper silver-plated materials, and the heat exchange coil (2-11) is made of pure copper materials.

4. The circuit board convenient to fixedly install according to claim 1, wherein the cushioning component comprises compression sleeves (20) symmetrically sleeved outside the guide rod (6), a compression spring (21) is fixed between the two compression sleeves (20), connecting pieces are fixed at the ends, located far away, above the two compression sleeves (20), the rear sides of the two connecting pieces are rotatably connected with force applying rods (19), and the other ends of the two force applying rods (19) are rotatably connected with clamping plates (18) fixed with the outer side of the circuit board (1).

5. The circuit board convenient for fixed installation according to claim 4, wherein the clamping plate (18) is of an Contraband-shaped structure, the bolt (17) is screwed on the upper side of the clamping plate (18), the inner side of the clamping plate (18) is provided with an engaging piece rotatably connected with the bottom end of the bolt (17), and the engaging piece is a rubber member.