Screw-free waterproof circuit board

Abstract

The utility model relates to the technical field of circuit boards, in particular to a screw-free waterproof circuit board, which comprises a mounting frame, the inner wall of the mounting frame is fixedly connected with a heat conducting plate through bolts, the top surface of the heat conducting plate is coated with a bonding layer, and the top surface of the bonding layer is bonded with a circuit board main body. Compared with the prior art, the circuit board has the advantages that a worker smears a layer of heat-conducting glue on the top surface of the heat-conducting plate, then the circuit board main body is bonded above the heat-conducting plate, then the waterproof top frame is mounted at the top of the mounting frame by using bolts, the mounting frame is mounted at a use position, and the heat dissipation fan is started to blow air to the circuit board main body through the through holes; the circuit board body can be cooled, heat exchange between the circuit board body and the outside can be achieved through cooperation of the cooling fins and the heat conduction plate, heat dissipation of the bottom of the circuit board body is facilitated, the waterproof performance of the circuit board body can be improved through the waterproof top frame, and heat dissipation of the circuit board body is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board, especially a screw-free waterproof circuit board. BACKGROUND

[0002] Circuit board, also known as circuit board or printed circuit board (PCB), is an indispensable component in modern electronic equipment. It is an electronic component carrier made on an insulating substrate by printing, etching and other processes according to the predetermined circuit connection relationship. The main function of the circuit board is to support and connect various electronic components to realize the transmission and control of electronic signals, which is the basis for electronic equipment to realize its functions.

[0003] The traditional circuit board still has some defects in design. In order to facilitate installation, locking holes are usually provided on the four corners of the circuit board. These locking holes are originally designed to facilitate the locking of the circuit board in the use position by using screws or other fasteners, but the locking holes may become a channel for water penetration, affecting the waterproof performance of the circuit board. At the same time, these holes may also reduce the mechanical strength of the circuit board, making it vulnerable to damage during installation and use. SUMMARY

[0004] The purpose of the utility model is to solve at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a screw-free waterproof circuit board to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0006] In order to achieve the above purpose, the embodiment of the utility model provides a screw-free waterproof circuit board, which comprises a mounting frame, the inner wall of the mounting frame is fixedly connected with a heat conduction plate through bolts, the top surface of the heat conduction plate is coated with an adhesive layer, the top surface of the adhesive layer is bonded with a circuit board body, the top surface of the mounting frame is fixedly installed with a waterproof top frame through bolts, the left and right sides of the waterproof top frame are fixedly connected with U-shaped frames, the front and rear sides of each U-shaped frame are slidingly connected with a locking plate, the outer side of each locking plate is fixedly connected with a spring, the end of the spring away from the locking plate is fixedly connected with a locking rod, the locking rod penetrates the locking plate and is clamped with the U-shaped frame, a cover plate is fixedly connected between the two locking plates, the inner side of the cover plate is fixedly connected with a cooling fan, the two cooling fans are respectively located inside the two U-shaped frames, the left and right sides of the waterproof top frame are provided with through holes, the output ends of the two cooling fans correspond to the two through holes respectively, the bottom surface of the waterproof top frame is fixedly connected with two symmetrically arranged ventilation frames, and the two ventilation frames are slidingly connected with the mounting frame.

[0007] Preferably, the top surface of the mounting frame is provided with two symmetrical sliding grooves, and the ventilation frames are slidably connected to the mounting frame through the sliding grooves.

[0008] Preferably, the inner wall of each sliding groove is fixedly connected with two symmetrical blocking plates, the blocking plates are fixedly connected with a dust screen, the ventilation frame corresponds to the dust screen, and the bottom surface of the ventilation frame is attached to the top surface of the blocking plate.

[0009] Preferably, the bottom surface of the heat-conducting plate is fixedly connected with a plurality of linearly arranged heat dissipation fins, the heat dissipation fins are perpendicular to the heat-conducting plate, the heat dissipation fins and the heat-conducting plate are made of aluminum alloy, and the adhesive layer is made of heat-conducting glue.

[0010] Preferably, the bottom surface of the heat-conducting plate is fixedly connected with a plurality of symmetrical clamping plates, and the heat-conducting plate is clamped to the mounting frame through the clamping plates.

[0011] Preferably, the inner wall of each through hole is fixedly connected with a connecting frame, and the side of the connecting frame close to the heat dissipation fan is fixedly connected with a plurality of symmetrical positioning pins, and the heat dissipation fan is slidably connected to the positioning pins.

[0012] Preferably, the front and rear sides of the U-shaped frame are provided with locking holes, and the locking rod is clamped to the U-shaped frame through the locking holes.

[0013] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0014] 1. When the circuit board needs to be installed, the heat-conducting plate is installed in the mounting frame by using the bolt, then a layer of heat-conducting glue is applied on the top surface of the heat-conducting plate, then the circuit board body is adhered above the heat-conducting plate, then the waterproof top frame is installed on the top of the mounting frame by using the bolt, then the mounting frame is installed at the use position, and the heat dissipation fan is started to blow air to the circuit board body through the through hole, so that the circuit board body can be cooled, the circuit board body can be heat exchanged with the outside through the cooperation of the heat dissipation fins and the heat-conducting plate, the circuit board body bottom can be cooled conveniently, the waterproof performance of the circuit board body can be improved through the waterproof top frame, and the circuit board body can be cooled conveniently.

[0015] 2. When the heat dissipation fan needs to be repaired, the worker only needs to pull the locking rod to move it outward, so that the locking rod can be moved out of the locking hole while the spring is stretched, the locking between the locking plate and the U-shaped frame can be released, the cover plate is pulled outward to drive the heat dissipation fan to move the U-shaped frame, and the heat dissipation fan can be quickly disassembled for repair. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic view of the assembly body of the utility model;

[0017] Figure 2 It is the first cross section structure schematic view of the assembly body of the utility model;

[0018] Figure 3 It is the second cross section structure schematic view of the assembly body of the utility model;

[0019] Figure 4 It is the explosion structure schematic view of the assembly body of the utility model;

[0020] Figure 5 It is the structure schematic view of the installation frame of the utility model;

[0021] Figure 6 It is the structure schematic view of the heat conduction plate of the utility model;

[0022] Figure 7 It is the structure schematic view of the waterproof top frame of the utility model;

[0023] Figure 8 It is the structure schematic view of the heat dissipation fan of the utility model.

[0024] In the drawing: 1 - installation frame, 2 - heat conduction plate, 3 - adhesive layer, 4 - circuit board main body, 5 - waterproof top frame, 6 - U type frame, 7 - locking plate, 8 - spring, 9 - locking rod, 10 - cover plate, 11 - heat dissipation fan, 12 - through hole, 13 - ventilation frame, 14 - sliding slot, 15 - blocking plate, 16 - dust screen, 17 - heat dissipation fin, 18 - clamping plate, 19 - connecting frame, 20 - positioning pin, 21 - locking hole. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings, but the protection scope of the utility model is not limited to the following.

[0026] As Figures 1 to 8As shown, a kind of waterproof circuit board without screw, it includes installation frame 1, the inner wall of installation frame 1 is fixedly connected with heat conduction plate 2 by bolt, the top surface of heat conduction plate 2 is smeared with adhesive layer 3, the top surface of adhesive layer 3 is bonded with circuit board main body 4, the top surface of installation frame 1 is fixedly installed with waterproof top frame 5 by bolt, the left and right sides of waterproof top frame 5 are fixedly connected with U-shaped frame 6, the front and back sides of each U-shaped frame 6 are slidably connected with locking plate 7, the outer side of each locking plate 7 is fixedly connected with one spring 8, the end of spring 8 away from locking plate 7 is fixedly connected with locking rod 9, locking rod 9 is inserted through locking plate 7 and is clamped with U-shaped frame 6, cover plate 10 is fixedly connected between two locking plates 7, the inner side of cover plate 10 is fixedly connected with heat dissipation fan 11, two heat dissipation fans 11 are located inside two U-shaped frames 6 respectively, the left and right sides of waterproof top frame 5 are provided with through hole 12, the output end of two heat dissipation fans 11 corresponds with two through holes 12 respectively, the bottom surface of waterproof top frame 5 is fixedly connected with two symmetrically arranged ventilation frames 13, two ventilation frames 13 are slidably connected with installation frame 1.

[0027] As an optional technical scheme of the utility model, the top surface of installation frame 1 is provided with two symmetrically arranged sliding grooves 14, two ventilation frames 13 are slidably connected with installation frame 1 through sliding groove 14, through the design of sliding groove 14, ventilation frame 13 can be conveniently slidably installed on installation frame 1, which is convenient for installation and disassembly, and is conducive to the maintenance and overhaul of the circuit.

[0028] The inner wall of each sliding groove 14 is fixedly connected with two symmetrically arranged blocking plates 15, dust screen 16 is fixedly connected between two blocking plates 15, ventilation frame 13 corresponds with dust screen 16 up and down, the bottom surface of ventilation frame 13 is attached to the top surface of blocking plate 15, the setting of blocking plate 15 and dust screen 16 effectively prevents dust and sundries from entering the inside of circuit board, and guarantees the cleanliness and stable operation of circuit board.

[0029] The bottom surface of heat conduction plate 2 is fixedly connected with a plurality of linear array heat dissipation fins 17, heat dissipation fin 17 is perpendicular to heat conduction plate 2, the material of heat dissipation fin 17 and heat conduction plate 2 is aluminum alloy, the material of adhesive layer 3 is heat-conducting glue, heat dissipation fin 17 increases the heat dissipation area, improves the heat dissipation efficiency, helps to reduce the working temperature of circuit board, and prolongs the service life.

[0030] The bottom surface of heat conduction plate 2 is fixedly connected with a plurality of symmetrically arranged clamping plates 18, heat conduction plate 2 is clamped with installation frame 1 through a plurality of clamping plates 18, clamping plate 18 makes heat conduction plate 2 be firmly clamped on installation frame 1, and the installation stability of heat conduction plate 2 is improved.

[0031] The inner wall of each through hole 12 is fixedly connected with a connecting frame 19, the connecting frame 19 is fixedly connected with a plurality of symmetrically arranged positioning pins 20 on the side close to the heat dissipation fan 11, the heat dissipation fan 11 is in sliding connection with the positioning pins 20, and the design of the connecting frame 19 and the positioning pins 20 enables the heat dissipation fan 11 to be stably installed in the through hole 12, guarantees the heat dissipation effect, and facilitates replacement and maintenance of the heat dissipation fan.

[0032] Locking holes 21 are formed in the front and back sides of the U-shaped frame 6, the locking rod 9 penetrates the locking plate 7 and is clamped with the U-shaped frame 6 through the locking holes 21, and the cooperation of the locking holes 21 and the locking rod 9 enables the U-shaped frame 6 and the locking plate 7 to be firmly connected together, thereby guaranteeing the stability and safety of the circuit board as a whole.

[0033] The working principle of the screw-free waterproof circuit board is as follows:

[0034] 1) When the circuit board needs to be installed, the heat dissipation plate 2 is installed in the installation frame 1 by using a bolt, then a layer of heat-conducting glue is applied on the top surface of the heat dissipation plate 2, and then the circuit board body 4 is bonded above the heat dissipation plate 2.

[0035] 2) The waterproof top frame 5 is installed on the top of the installation frame 1 by using a bolt, then the installation frame 1 is installed at the use position, and the heat dissipation fan 11 is turned on to blow air to the circuit board body 4 through the through hole 12, so that the circuit board body 4 can be cooled.

[0036] 3) The cooperation of the heat dissipation fins 17 and the heat dissipation plate 2 enables the circuit board body 4 to exchange heat with the outside, thereby facilitating cooling of the bottom of the circuit board body 4.

[0037] In summary, when the circuit board needs to be installed, the heat dissipation plate 2 is installed in the installation frame 1 by using a bolt, then a layer of heat-conducting glue is applied on the top surface of the heat dissipation plate 2, and then the circuit board body 4 is bonded above the heat dissipation plate 2, then the waterproof top frame 5 is installed on the top of the installation frame 1 by using a bolt, then the installation frame 1 is installed at the use position, and the heat dissipation fan 11 is turned on to blow air to the circuit board body 4 through the through hole 12, so that the circuit board body 4 can be cooled, the cooperation of the heat dissipation fins 17 and the heat dissipation plate 2 enables the circuit board body 4 to exchange heat with the outside, thereby facilitating cooling of the bottom of the circuit board body 4, the waterproof top frame 5 can improve the waterproof performance of the circuit board body 4, and the circuit board body 4 can be cooled conveniently, when the heat dissipation fan 11 needs to be repaired, the worker only needs to pull the locking rod 9 to make it move outward, which can stretch the spring 8 and drive the locking rod 9 to move out of the locking hole 21, so that the locking between the locking plate 7 and the U-shaped frame 6 can be released, at this time, the cover plate 10 is pulled outward to drive the heat dissipation fan 11 to move the U-shaped frame 6, so that the heat dissipation fan 11 can be quickly disassembled for repair.

Claims

1. A screwless waterproof circuit board, characterized by: The application relates to a heat-dissipating circuit board, which comprises a mounting frame (1), the inner wall of the mounting frame (1) is fixedly connected with a heat-conducting plate (2) through bolts, the top surface of the heat-conducting plate (2) is coated with an adhesive layer (3), the top surface of the adhesive layer (3) is bonded with a circuit board body (4), the top surface of the mounting frame (1) is fixedly installed with a waterproof top frame (5) through bolts, the left and right sides of the waterproof top frame (5) are fixedly connected with U-shaped frames (6), the front and back sides of each U-shaped frame (6) are slidably connected with locking plates (7), the outer side of each locking plate (7) is fixedly connected with a spring (8), the end, away from the locking plate (7), of the spring (8) is fixedly connected with a locking rod (9), the locking rod (9) penetrates through the locking plate (7) and is clamped with the U-shaped frame (6), the locking plates (7) are fixedly connected with a cover plate (10) between the two locking plates (7), the inner side of the cover plate (10) is fixedly connected with heat-dissipating fans (11), the two heat-dissipating fans (11) are located inside the two U-shaped frames (6) respectively, the left and right sides of the waterproof top frame (5) are provided with through holes (12), the output ends of the two heat-dissipating fans (11) correspond to the two through holes (12) respectively, the bottom surface of the waterproof top frame (5) is fixedly connected with two symmetrically arranged ventilation frames (13), and the two ventilation frames (13) are slidably connected with the mounting frame (1).

2. The screwless waterproof circuit board according to claim 1, characterized in that: The top surface of the mounting frame (1) is provided with two symmetrically arranged sliding grooves (14), and the two ventilation frames (13) are slidably connected with the mounting frame (1) through the sliding grooves (14).

3. The screwless waterproof circuit board according to claim 2, characterized in that: The inner wall of each sliding groove (14) is fixedly connected with two symmetrically arranged blocking plates (15), the blocking plates (15) are fixedly connected with a dust screen (16) between the two blocking plates (15), the ventilation frame (13) corresponds to the dust screen (16) up and down, and the bottom surface of the ventilation frame (13) is attached to the top surface of the blocking plate (15).

4. The screwless waterproof circuit board according to claim 3, characterized in that: The bottom surface of the heat-conducting plate (2) is fixedly connected with a plurality of linearly arranged heat-dissipating fins (17), the heat-dissipating fins (17) are perpendicular to the heat-conducting plate (2), the heat-dissipating fins (17) and the heat-conducting plate (2) are made of aluminum alloy, and the adhesive layer (3) is made of heat-conducting glue.

5. The screwless waterproof circuit board according to claim 4, characterized in that: The bottom surface of the heat-conducting plate (2) is fixedly connected with a plurality of symmetrically arranged clamping plates (18), and the heat-conducting plate (2) is clamped with the mounting frame (1) through the clamping plates (18).

6. A screwless waterproof circuit board according to claim 5, characterized in that: The inner wall of each through hole (12) is fixedly connected with a connecting frame (19), one side of the connecting frame (19), close to the heat-dissipating fan (11), is fixedly connected with a plurality of symmetrically arranged positioning pins (20), and the heat-dissipating fan (11) is slidably connected with the positioning pin (20).

7. A screwless waterproof circuit board according to claim 6, characterized in that: The front and back sides of the U-shaped frame (6) are provided with locking holes (21), and the locking rod (9) penetrates through the locking plate (7) and is clamped with the U-shaped frame (6) through the locking hole (21).

Images