A PCB solder cooling device

Abstract

The invention discloses a PCB solder cooling device, and relates to the technical field of PCB solder cooling, comprising a cooling box, a supporting box fixedly connected in the cooling box, a fixing mechanism arranged in the supporting box; a containing box arranged in the cooling box, a box cover rotatably arranged on the top of the containing box, a gear fixedly connected to the rear end of a connecting shaft; a connecting block 2 is slidably arranged in a rectangular opening on the rear end surface of the cooling box, a rectangular box is fixedly connected to one end of the connecting block 2, a movable plate is slidably arranged in the rectangular box, a plurality of long bristles and a plurality of tension springs are evenly arranged on the bottom of the movable plate, a connecting block 1 is fixedly connected to the top of the movable plate, an L-shaped connecting plate is fixedly connected to one end of the connecting block 1; a plurality of electric telescopic rods are installed on the rear end surface of the connecting block 2, and a transmission mechanism is arranged on the movable ends of the plurality of electric telescopic rods; the invention facilitates opening the box cover on the containing box first by using the transmission mechanism, and then uses the long bristles to move upward to enter the containing box, so that the long bristles are in contact with alcohol, and the long bristles are convenient to stick to the alcohol.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB solder cooling, and in particular to a PCB solder cooling device. Background Art

[0002] PCB, also known as printed circuit board (PCB), is an important electronic component that supports electronic components and serves as a carrier for electrical connections. It is called a "printed" circuit board because it is manufactured using electronic printing technology. During the production of existing PCBs, the electronic components on the PCBs are soldered together, and the soldered PCBs need to be cooled, which necessitates the use of a cooling device. However, stains and tin spots may remain on the PCBs, which can affect the neatness and quality of the PCBs. However, existing cooling devices do not have the function of removing stains and tin spots on the PCBs. Therefore, the tin spots and stains on the PCBs need to be removed again after the PCBs have been cooled. This operation is cumbersome and time-consuming, thereby reducing the efficiency of PCB production. Summary of the Invention

[0003] In order to solve the problems in the background technology, the present invention proposes a PCB solder cooling device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A PCB solder cooling device comprises a cooling box, a support box is fixedly connected to the middle of the cooling box, and a fixing mechanism acting on the PCB is provided in the support box;

[0006] The bottom of the cooling box is provided with a storage box for placing alcohol, the top of the storage box is provided with a box cover which is rotated by a connecting shaft, and the rear end of the connecting shaft movably passes through the cooling box and is fixed with a gear, and the top of the cooling box is provided with an extrusion piece;

[0007] A rectangular opening is provided on the rear end surface of the cooling box, a connecting block 2 is slidably provided in the rectangular opening, one end of the connecting block 2 is fixedly connected to the rectangular box, a movable plate is slidably provided in the rectangular box, a plurality of long bristles are evenly provided on the bottom of the movable plate, a plurality of tension springs are evenly provided between the movable plate and the rectangular box, a notch is provided on the rear end surface of the rectangular box, a U-shaped groove is provided on the rear end surface of the cooling box, a connecting block 1 is fixedly connected to the top of the movable plate, and the connecting block 1 movably passes through the notch and the outside of the U-shaped groove and is fixedly connected to an L-shaped connecting plate;

[0008] A driving assembly acting on the second connecting block is provided on the rear end surface of the cooling box, and a cooling mechanism is provided on the rectangular box;

[0009] A multi-section electric telescopic rod is installed on the second rear end surface of the connecting block, and the movable end of the multi-section electric telescopic rod is provided with a transmission mechanism that first acts on the gear and then acts on the L-shaped connecting plate.

[0010] Preferably, the transmission mechanism includes a guide rod fixedly connected to the bottom of the second connecting block, a bar frame fixedly connected to the movable end of the multi-section electric telescopic rod, a movable block and an extrusion spring 1 slidably arranged in the bar frame, and the bar frame and the movable block are both slidably arranged with the guide rod, and the extrusion spring is provided on the outer wall of the guide rod and is located above the movable block. The two ends of the movable block are provided with bar tooth plates meshing with gears, and the teeth of the bar tooth plates are arranged relative to each other.

[0011] Preferably, the extrusion member includes a strip block symmetrically arranged on the top of the storage box, a cavity opened in the strip block and a strip scraper block slidably arranged in the cavity, and a plurality of extrusion springs are evenly arranged between the strip scraper block and the cavity, and the top of the strip scraper block is an inclined surface.

[0012] Preferably, the cooling mechanism includes bellows fixedly connected to both sides of the rectangular box, a plurality of strip-shaped air outlets evenly arranged on the bottom surface of the bellows, and a blower installed on the top of the cooling box. The air outlet of the blower is provided with an air inlet hose. The bellows are connected by an air guide hose, and the air guide hose is connected to the air inlet hose.

[0013] Preferably, the drive assembly includes support plates symmetrically fixed on both sides of the rectangular opening and threaded holes opened on the second connecting block, a screw is threadedly connected to the threaded hole, and the screw is rotatably arranged with the support plate, and a drive motor is provided at one end of the screw.

[0014] Preferably, a mounting groove is provided on the inner side surface of the rectangular opening, a pressure sensor is installed in the mounting groove, and a control device cooperating with the pressure sensor is provided on the front end surface of the cooling box;

[0015] The control device includes a processor and a controller. The processor and the pressure sensor are electrically connected through a wire, and the controller and the multi-section electric telescopic rod are electrically connected through a wire.

[0016] Preferably, the fixing mechanism includes a bidirectional screw rod rotatably arranged in the supporting box and a handle arranged at one end of the bidirectional screw rod. A strip opening is symmetrically opened on the top surface of the supporting box. Threaded sleeves are threadedly connected to the outer walls of both ends of the bidirectional screw rod, and the top of the threaded sleeve movably passes through the outside of the strip opening and is fixed with a splint.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] The present invention drives the air cooling mechanism and the long-bristled brush to move by a driving assembly, thereby cooling the solder on the PCB first and then cleaning it, so that the solder is cooled quickly and the solder cooling efficiency is improved. At the same time, it is also convenient to clean the tin particles and dirt on the PCB, ensuring that the circuit board is clean and beautiful, free of tin particles and dirt, and improving the quality of the PCB board.

[0019] The present invention facilitates opening the box cover on the containing box by using a transmission mechanism, and then the long bristles of the brush are moved upward to enter the containing box, so that the long bristles are in contact with the alcohol, and the long bristles are conveniently adhered to the alcohol; wherein, the use of an extruding member facilitates squeezing the alcohol on the long bristles, thereby avoiding the phenomenon that too much alcohol is adhered to the long bristles and causes the alcohol to drip downward, thereby causing alcohol waste, and excessive alcohol may cause moisture on the PCB board, which is not conducive to cleaning the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It shows a schematic structural diagram of a front view provided by an embodiment of the present invention;

[0021] Figure 2 It shows a schematic structural diagram of a rear viewing angle provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a cross-sectional structure according to a front view perspective provided by an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of a cross-sectional structure from a side perspective provided by an embodiment of the present invention is shown;

[0024] Figure 5 A schematic structural diagram of a driving mechanism according to a first perspective is shown;

[0025] Figure 6 A schematic structural diagram of a driving mechanism according to a second perspective is shown;

[0026] Figure 7 shows a cross-sectional view of a rectangular box provided according to an embodiment of the present invention;

[0027] Figure 8 It shows a schematic structural diagram of a bellows provided in an embodiment of the present invention;

[0028] Figure 9 A schematic structural diagram of an extrusion member according to an embodiment of the present invention is shown;

[0029] Figure 10 A schematic structural diagram of a fixing mechanism provided in an embodiment of the present invention is shown;

[0030] Figure 11A schematic structural diagram of the rear end face of a cooling box according to an embodiment of the present invention is shown.

[0031] Legend:

[0032] 1. Cooling box; 2. Control device; 3. Blower; 4. Drive motor; 5. Air inlet hose; 6. Screw; 7. Support plate; 8. U-shaped groove; 9. Gear; 10. Support box; 11. Container; 12. Long bristles; 13. Movable plate; 14. Bellows; 15. Rectangular box; 16. Connecting block 1; 17. Air guide hose; 18. Guide rod; 19. L-shaped connecting plate; 20. Strip tooth plate; 21. Movable block; 22. Strip frame; 23. Multi-section electric telescopic rod; 24. Extrusion spring 1; 25. Connecting block 2; 26. Connecting shaft; 27. Box cover; 28. Tension spring; 29. ​​Strip air outlet; 30. Strip block; 31. Strip scraper block; 32. Extrusion spring 2; 33. Clamp; 34. Strip opening; 35. Bidirectional screw; 36. Threaded sleeve; 37. Pressure sensor; 38. Rectangular opening. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] See also Figure 1-11 , the present invention provides a technical solution:

[0035] A PCB solder cooling device includes a cooling box 1, a supporting box 10 fixedly connected to the middle portion of the cooling box 1, and a fixing mechanism for the PCB provided in the supporting box 10. The fixing mechanism facilitates the fixing of the PCB, preventing the PCB from moving during cooling and cleaning, thereby facilitating cleaning and cooling of the PCB.

[0036] A holding box 11 for placing alcohol is provided at the bottom of the cooling box 1. Alcohol is placed in the holding box 11 for cleaning the PCB board, and the alcohol is 75% industrial alcohol. A box cover 27 is provided on the top of the holding box 11 through a connecting shaft 26. The use of the box cover 27 facilitates the sealing of the holding box 11 to prevent the recovery of the alcohol. The rear end of the connecting shaft 26 movably passes through the cooling box 1 and is fixedly connected to a gear 9. An extrusion piece is provided at the top of the cooling box 1. The use of the extrusion piece facilitates the extrusion of the alcohol on the long bristles 12 to avoid excessive alcohol sticking to the long bristles 12 and causing the alcohol to drip down, resulting in alcohol waste and excessive alcohol causing the PCB board to be wet, which is not conducive to the cleaning of the PCB board.

[0037] The rear end surface of the cooling box 1 is provided with a rectangular opening 38, in which a connecting block 25 is slidably provided, and one end of the connecting block 25 is fixedly connected to a rectangular box 15, and a movable plate 13 is slidably provided in the rectangular box 15, and a plurality of long bristles 12 are evenly provided at the bottom of the movable plate 13, and the bottom of the long bristles 12 contacts the top surface of the supporting box 10; through the reciprocating movement of the long bristles 12, it is convenient to clean the tin particles and dirt on the top surface of the PCB board, so as to ensure that the circuit board is clean and beautiful, without tin particles and dirt, and improve the quality of the PCB board; a plurality of tension springs 28 are evenly provided between the movable plate 13 and the rectangular box 15, so as to facilitate pulling the movable plate 13, thereby realizing the positioning of the long bristles 12; a notch is provided on the rear end surface of the rectangular box 15, and a U-shaped groove 8 is provided on the rear end surface of the cooling box 1, and a connecting block 16 is fixedly connected to the top of the movable plate 13, and the connecting block 16 movably passes through the notch and the U-shaped groove 8 and is fixedly connected to an L-shaped connecting plate 19;

[0038] A driving assembly acting on the second connecting block 25 is provided on the rear end surface of the cooling box 1. By using the driving assembly, the long bristles 12 are driven to move back and forth to clean the PCB board, and the cooling mechanism is also driven to move to achieve air cooling of the PCB board. The rectangular box 15 is provided with a cooling mechanism to achieve air cooling of the PCB board, which is simple and convenient to operate and improves the working efficiency of the PCB board cooling.

[0039] A multi-section electric telescopic rod 23 is installed on the rear end surface of the connecting block 25. The movable end of the multi-section electric telescopic rod 23 is provided with a transmission mechanism that first acts on the gear 9 and then acts on the L-shaped connecting plate 19. Through the use of the transmission mechanism, it is convenient to first open the box cover 27 on the holding box 11, and then move the long bristles 12 upward to enter the holding box 11 when using it, so that the long bristles 12 come into contact with the alcohol, making it easier for the long bristles 12 to stick to the alcohol.

[0040] In the present invention, the transmission mechanism includes a guide rod 18 fixed to the bottom of the connecting block 25, a bar frame 22 fixed to the movable end of the multi-section electric telescopic rod 23, a movable block 21 and an extrusion spring 24 slidably arranged in the bar frame 22, and the bar frame 22 and the movable block 21 are both slidably arranged with the guide rod 18, and the extrusion spring 24 is sleeved on the outer wall of the guide rod 18 and located above the movable block 21. Through the use of the extrusion spring 24, it is convenient to squeeze the movable block 21, so that the movable block 21 first moves with the bar frame 22 and then stops moving; bar tooth plates 20 meshing with the gear 9 are provided at both ends of the movable block 21, and the teeth of the bar tooth plates 20 are arranged relative to each other.

[0041] In the present invention, the extrusion part includes a strip block 30 symmetrically arranged on the top of the storage box 11, a cavity opened in the strip block 30 and a strip scraper block 31 slidably arranged in the cavity, and a plurality of extrusion springs 32 are evenly arranged between the strip scraper block 31 and the cavity, which are used to extrude the strip scraper block 31, thereby facilitating the extrusion of the long bristles 12, facilitating the discharge of the alcohol in the long bristles 12, avoiding excessive alcohol causing pollution to the surrounding environment and the PCB board, and being beneficial to the cooling of the PCB board; and the top of the strip scraper block 31 is an inclined surface, which facilitates the long bristles 12 to push the strip scraper block 31 open, so that the long bristles 12 can enter the storage box 11, thereby facilitating the long bristles 12 to stick to alcohol.

[0042] In the present invention, the cooling mechanism includes a bellows 14 fixed on both sides of a rectangular box 15, a plurality of strip air outlets 29 evenly arranged on the bottom surface of the bellows 14, and a blower 3 installed on the top of the cooling box 1. The air outlet of the blower 3 is provided with an air inlet hose 5. The bellows 14 are connected by an air guide hose 17, and the air guide hose 17 is connected to the air inlet hose 5.

[0043] In the present invention, the drive assembly includes a support plate 7 symmetrically fixed on both sides of the rectangular opening 38 and a threaded hole opened on the connecting block 25. A screw 6 is threadedly connected in the threaded hole, and the screw 6 and the support plate 7 are rotatably arranged. A drive motor 4 is provided at one end of the screw 6, and the output shaft of the drive motor 4 can rotate forward or reverse.

[0044] In the present invention, a mounting groove is provided on the inner side of the rectangular opening 38, in which a pressure sensor 37 is installed. A control device 2 cooperating with the pressure sensor 37 is provided on the front end surface of the cooling box 1.

[0045] The control device 2 includes a processor and a controller. The processor and the pressure sensor 37 are electrically connected through wires, and the controller and the multi-section electric telescopic rod 23 are electrically connected through wires. The pressure sensor 37 and the control device 2 cooperate with each other to facilitate the control of the multi-section electric telescopic rod 23.

[0046] In the present invention, the fixing mechanism includes a bidirectional screw rod 35 rotatably arranged in the supporting box 10 and a handle arranged at one end of the bidirectional screw rod 35. A strip opening 34 is symmetrically opened on the top surface of the supporting box 10. Threaded sleeves 36 are threadedly connected to the outer walls of both ends of the bidirectional screw rod 35, and the top of the threaded sleeve 36 movably passes through the outside of the strip opening 34 and is fixedly connected to a splint 33. The height of the PCB board is the same as the height of the splint 33, which is convenient for cleaning the PCB board. By rotating the handle to drive the bidirectional screw rod 35 to rotate, the splint 33 is driven to move relative to achieve clamping and fixing of the PCB board.

[0047] Working Principle: When using the present invention, first place the PCB on the top surface of the support box 10. Then, turn the handle to rotate the bidirectional screw 35, which in turn drives the threaded sleeve 36 to move relative to each other, thereby driving the clamping plates 33 to move relative to each other. The clamping force between the two clamping plates 33 clamps and secures the PCB, facilitating cooling and cleaning of the PCB.

[0048] Then, the blower 3 is turned on, and the air generated by the blower 3 is transported to the air guide hose 17 through the air inlet hose 5. The air then enters the air box 14 and is finally blown out from the strip-shaped air outlet 29.

[0049] Then, the driving motor 4 is started, and the output shaft of the driving motor 4 rotates to drive the lead screw 6 to rotate, thereby driving the connecting block 2 25 to move, thereby driving the rectangular box 15 to move, and the transmission mechanism and the bellows 14 to move synchronously; the movement of the rectangular box 15 drives the movable plate 13 and the long brush 12 to move, thereby driving the connecting block 16 and the L-shaped connecting plate 19 to move synchronously, so that the L-shaped connecting plate 19 is always at the bottom of the transmission mechanism; the long brush 12 moves on the PCB board to clean the PCB board;

[0050] The movement of the bellows 14 causes air to blow onto the PCB, thereby cooling the solder on the PCB. The cooling step of the solder on the PCB is performed before cleaning the PCB.

[0051] When the second connecting block 25 moves to the end of the rectangular opening 38, one of the strip-shaped toothed plates 20 engages with the gear 9, and the long bristles 12 are located above the storage box 11. At this time, the pressure sensor 37 receives a signal, and then the pressure sensor 37 transmits the signal to the processor in the control device 2. After processing by the processor and through the control device, the multi-section electric telescopic rod 23 is energized to work, and the telescopic end of the multi-section electric telescopic rod 23 extends, driving the bar frame 22 to move downward. The downward movement of the bar frame 22 is divided into two processes:

[0052] Process 1: Under the action of the extrusion spring 1 24, the bar frame 22 moves downward, which drives the movable block 21 to move downward, and then drives the bar gear plate 20 to move downward, thereby rotating the gear 9, and further driving the connecting shaft 26 and the box cover 27 to rotate and open;

[0053] Process 2: When the box cover 27 is fully opened, the strip-shaped toothed plate 20 will not move downward, and the strip frame 22 is in contact with the L-shaped connecting plate 19. Then, as the strip frame 22 continues to move downward, the L-shaped connecting plate 19 is driven downward, thereby driving the movable plate 13 and the long bristles 12 downward.

[0054] As the long bristles 12 fall, the long bristles 12 squeeze the strip scraper 31, so that the strip scraper 31 enters the cavity, and then the long bristles 12 enter the holding box 11 and are placed in the alcohol, so that the long bristles 12 are adhered to the alcohol;

[0055] Then the movable end of the multi-section electric telescopic rod 23 contracts and drives the long bristles 12 to move upward. During the upward movement, the long bristles 12 are squeezed by the two strip scraping blocks 31, so that the excess alcohol on the long bristles 12 falls into the holding box 11, avoiding excess alcohol on the long bristles 12, saving resources, and also facilitating the protection of the surrounding environment. When the strip frame 22 is separated from the L-shaped connecting plate 19, the strip frame 22 continues to rise, causing the strip tooth plate 20 to move upward, thereby driving the gear 9 to rotate and closing the box cover 27 to prevent the alcohol in the holding box 11 from volatilizing.

[0056] Finally, open the door of cooling box 1, remove the PCB board, and replace it with another PCB board.

[0057] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PCB solder cooling device, comprising a cooling box (1), characterized in that: A supporting box (10) is fixedly connected to the middle of the cooling box (1), and a fixing mechanism acting on the PCB board is provided in the supporting box (10); The bottom of the cooling box (1) is provided with a storage box (11) for storing alcohol, the top of the storage box (11) is provided with a box cover (27) which is rotatable via a connecting shaft (26), and the rear end of the connecting shaft (26) movably passes through the cooling box (1) and is fixedly connected to a gear (9), and the top of the cooling box (1) is provided with an extrusion piece; A rectangular opening (38) is provided on the rear end surface of the cooling box (1), a connecting block 2 (25) is slidably provided in the rectangular opening (38), one end of the connecting block 2 (25) is fixedly connected to a rectangular box (15), a movable plate (13) is slidably provided in the rectangular box (15), a plurality of long bristles (12) are evenly provided on the bottom of the movable plate (13), a plurality of tension springs (28) are evenly provided between the movable plate (13) and the rectangular box (15), a notch is provided on the rear end surface of the rectangular box (15), a U-shaped groove (8) is provided on the rear end surface of the cooling box (1), a connecting block 1 (16) is fixedly connected to the top of the movable plate (13), and the connecting block 1 (16) movably passes through the notch and the outside of the U-shaped groove (8) and is fixedly connected to an L-shaped connecting plate (19); A driving assembly acting on the second connecting block (25) is provided on the rear end surface of the cooling box (1), and a cooling mechanism is provided on the rectangular box (15); A multi-section electric telescopic rod (23) is mounted on the rear end surface of the second connecting block (25), and a transmission mechanism is provided at the movable end of the multi-section electric telescopic rod (23) which first acts on the gear (9) and then acts on the L-shaped connecting plate (19).

2. A PCB solder cooling device according to claim 1, characterized in that: The transmission mechanism comprises a guide rod (18) fixedly connected to the bottom of the second connecting block (25), a bar frame (22) fixedly connected to the movable end of the multi-section electric telescopic rod (23), a movable block (21) slidably arranged in the bar frame (22), and a first extrusion spring (24), wherein the bar frame (22) and the movable block (21) are both slidably arranged with the guide rod (18), the first extrusion spring (24) is sleeved on the outer wall of the guide rod (18) and is located above the movable block (21), and the movable block (21) is provided with a bar tooth plate (20) meshing with the gear (9) at both ends, and the teeth of the bar tooth plate (20) are arranged opposite to each other.

3. A PCB solder cooling device according to claim 1, characterized in that: The extrusion member comprises a strip block (30) symmetrically arranged on the top of the containing box (11), a cavity opened in the strip block (30), and a strip scraper block (31) slidably arranged in the cavity, and a plurality of extrusion springs (32) are evenly arranged between the strip scraper block (31) and the cavity, and the top of the strip scraper block (31) is an inclined surface.

4. A PCB solder cooling device according to claim 1, characterized in that: The cooling mechanism comprises a bellows (14) fixedly connected to both sides of a rectangular box (15), a plurality of strip-shaped air outlets (29) evenly arranged on the bottom surface of the bellows (14), and a blower (3) mounted on the top of the cooling box (1), wherein the air outlet of the blower (3) is provided with an air inlet hose (5), the bellows (14) are connected via an air guide hose (17), and the air guide hose (17) is connected to the air inlet hose (5).

5. A PCB solder cooling device according to claim 2, characterized in that: The driving assembly comprises a support plate (7) symmetrically fixed to two sides of the rectangular opening (38) and a threaded hole provided on the second connecting block (25), a lead screw (6) being threadedly connected to the threaded hole, and the lead screw (6) and the support plate (7) being rotatably arranged, and a driving motor (4) being provided at one end of the lead screw (6).

6. A PCB solder cooling device according to claim 5, characterized in that: An installation groove is provided on the inner side surface of the rectangular opening (38), a pressure sensor (37) is installed in the installation groove, and a control device (2) matching the pressure sensor (37) is provided on the front end surface of the cooling box (1); The control device (2) comprises a processor and a controller, the processor and the pressure sensor (37) are electrically connected via a wire, and the controller and the multi-section electric telescopic rod (23) are electrically connected via a wire.

7. A PCB solder cooling device according to claim 1, characterized in that: The fixing mechanism comprises a bidirectional screw rod (35) rotatably arranged in a supporting box (10) and a handle arranged at one end of the bidirectional screw rod (35); a strip opening (34) is symmetrically provided on the top surface of the supporting box (10); threaded sleeves (36) are threadedly connected to the outer walls of both ends of the bidirectional screw rod (35); and the top of the threaded sleeve (36) movably passes through the outside of the strip opening (34) and is fixedly connected to a clamping plate (33).

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