A printed circuit board drying apparatus
By introducing a clamping mechanism and a heating fan design into the printed circuit board drying device, the problems of loosening and unevenness of the circuit boards during the drying process are solved, achieving stable clamping and efficient drying.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN SHENGDA XINXING ELECTRONICS
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-29
AI Technical Summary
Existing printed circuit board drying devices have difficulty effectively clamping the circuit boards, resulting in uneven drying and loosening.
The clamping mechanism includes a fixed plate, a pull rod, a clamping block, a spring, and a pull ring. Combined with a fan, a heating element, and a rotating shaft, it achieves the fixation and uniform drying of the circuit board.
This achieves stable clamping of the circuit board during the drying process, preventing loosening and improving the uniformity and efficiency of drying.
Smart Images
Figure CN224302593U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a drying device, specifically a printed circuit board drying device, belonging to the field of printed circuit board technology. Background Technology
[0002] During the manufacturing process, printed circuit boards must first be removed from the electroplating bath, then the electroplating solution must be removed, and the boards must be washed and dried before they can be used. Drying can keep the surface of the circuit board dry and prevent the circuit board from being corroded and damaged by contact with moisture and carbon dioxide in the air.
[0003] A search revealed a Chinese patent with publication number CN220062370U, which discloses a printed circuit board drying device. The device includes an oven with several drying plates stacked at intervals inside. Each drying plate has a cavity inside and several arrayed air vents penetrating the top and bottom surfaces of the drying plate. The drying plates of this invention are stacked at intervals, and the air vents penetrating the top and bottom surfaces of the drying plates greatly improve the utilization rate of hot air.
[0004] Although the above-mentioned solutions can adopt a spaced stacking arrangement and have air vents penetrating the top and bottom surfaces of the drying plate, which greatly improves the utilization rate of hot air, the drying device in the above patent is difficult to clamp the circuit board. The circuit board is prone to loosening during drying, resulting in uneven drying of the circuit board. To address this issue, we provide a printed circuit board drying device to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a printed circuit board drying device to solve the above-mentioned problems, thereby addressing the difficulty in clamping circuit boards in the prior art.
[0006] This utility model is achieved through the following technical solution: a printed circuit board drying device, including a placement tray, the upper surface of which is provided with a clamping mechanism for clamping the circuit board, the clamping mechanism including a fixing plate fixedly connected to the upper surface of the placement tray, a pull rod slidably connected to the inner wall of the fixing plate, the pull rod passing through the fixing plate, a clamping block fixedly connected to one end of the pull rod, a spring sleeved on the outer surface of the pull rod, a connecting plate fixedly connected to one end of the spring, the other end of the spring fixedly connected to one side of the fixing plate, and a pull ring fixedly connected to the other side of the connecting plate.
[0007] Preferably, the inner wall of the placement tray has a first ventilation hole, and a rotating shaft is fixedly connected to the inner wall of the placement tray. The outer surface of the rotating shaft is rotatably connected to the inner wall of the outer box. The rotating shaft passes through the outer box and can drive the placement tray to rotate, which facilitates the drying process of the circuit board.
[0008] Preferably, a motor is fixedly connected to the upper surface of the outer casing, and the output shaft of the motor is rotatably connected to the rotating shaft. Under the action of the motor, the rotating shaft and the placement tray can be driven to rotate inside the outer casing.
[0009] Preferably, a ventilation pipe is fixedly connected to the inner wall of the outer casing, the ventilation pipe penetrates the outer casing, and a one-way valve is fixedly connected to the outer surface of the ventilation pipe. Hot air can be discharged through the ventilation pipe, and the one-way valve can prevent external air from entering the interior.
[0010] Preferably, an outer shell is fixedly connected to one side of the outer casing, and a partition is fixedly connected inside the outer shell. A third vent hole is provided on the inner wall of the partition. Under the action of the partition, this problem can be prevented from damaging the fan.
[0011] Preferably, a fixing ring is fixedly connected to one side of the outer casing, a second vent is provided on one side of the outer casing, a fan is fixedly connected inside the outer casing, and the second vent on the outer casing can draw in air to facilitate drying of the circuit boards inside the outer casing.
[0012] Preferably, a heating tube is fixedly connected inside the outer casing, and a fourth vent is provided on the other side of the outer casing. The heating tube is installed inside the outer casing and can be heated to facilitate the drying of the circuit board.
[0013] Preferably, a door panel is hinged to the other side of the outer box, and a handle is fixedly connected to one side of the door panel. The door panel is installed on the outer box and can seal the outer box to prevent gas leakage during drying.
[0014] This utility model provides a printed circuit board drying device, which has the following beneficial effects:
[0015] 1. This printed circuit board drying device uses a fixed plate, pull rod, clamping block, spring, connecting plate and pull ring. After the printed circuit board is processed, it needs to be dried. When drying, the circuit board needs to be fixed to prevent it from loosening. The clamping mechanism can fix it according to the shape of the circuit board to achieve clamping.
[0016] 2. This printed circuit board drying device uses a fan, partition, third vent, and heating tube in combination. When the circuit board is placed inside the outer box, the motor can drive the circuit board to rotate. Under the action of the fan and heating tube, the clamped circuit board can be dried. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the placement tray of this utility model;
[0020] Figure 4 This is a three-dimensional cross-sectional structural diagram of the outer shell of this utility model;
[0021] Figure 5 This utility model Figure 3 A magnified structural diagram at point A.
[0022] [Explanation of Key Component Symbols]
[0023] 1. Place the tray;
[0024] 2. Clamping mechanism; 201. Fixing plate; 202. Pull rod; 203. Clamping block; 204. Spring; 205. Connecting plate; 206. Pull ring;
[0025] 3. First vent; 4. Shaft; 5. Motor; 6. Outer casing; 7. Outer shell; 8. Fixing ring; 9. Second vent; 10. Fan; 11. Partition; 12. Third vent; 13. Heating element; 14. Fourth vent; 15. Ventilation pipe; 16. One-way valve; 17. Door panel; 18. Handle. Detailed Implementation
[0026] This utility model provides a printed circuit board drying device.
[0027] Please see Figure 2 The device includes a placement tray 1, with a first ventilation hole 3 on the inner wall of the placement tray 1. A rotating shaft 4 is fixedly connected to the inner wall of the placement tray 1, and the outer surface of the rotating shaft 4 is rotatably connected to the inner wall of the outer casing 6. The rotating shaft 4 passes through the outer casing 6. The first ventilation hole 3 on the placement tray 1 allows hot air to be used to dry the lower surface of the circuit board during drying. The placement tray 1 is mounted on the rotating shaft 4, which drives the placement tray 1 to rotate. The rotating shaft 4 is installed inside the outer casing 6, and the outer casing 6 can fix the rotating shaft 4 to prevent it from shaking during rotation. A door panel 17 is hinged to the other side of the outer casing 6, and a handle 18 is fixedly connected to one side of the door panel 17. The door panel 17 is mounted on the outer casing 6. During drying, closing the door panel 17 can prevent gas leakage from the circuit board during drying. The handle 18 is mounted on the door panel 17, allowing the operator to easily open the door panel 17.
[0028] Please see Figure 4The outer casing 6 is fixedly connected to one side of the outer casing 7. A heating tube 13 is fixedly connected inside the outer casing 7. A fourth vent 14 is opened on the other side of the outer casing 7. The heating tube 13 is installed inside the outer casing 7. The heating temperature of the heating tube 13 can dry the circuit board inside the outer casing 6. The fourth vent 14 on one side of the outer casing 7 can blow air into the outer casing 6. A fixing ring 8 is fixedly connected to one side of the outer casing 7. A second vent 9 is opened on one side of the outer casing 7. A fan 10 is fixedly connected inside the outer casing 7. The fixing ring 8 is installed on the outer casing 7 to facilitate air entering the interior of the outer casing 7 through the second vent 9. The fan 10 is installed inside the outer casing 7. Under the action of the fan 10, air can be blown into the interior of the outer casing 6.
[0029] Please see Figure 1 A partition 11 is fixedly connected inside the outer casing 7. A third vent 12 is provided on the inner wall of the partition 11. The outer casings 7 on both sides are installed on both sides of the outer box 6 for fixation. The circuit boards inside the outer box 6 can be dried through the outer casings 7 on both sides. The partition 11 is installed inside the outer casing 7 to isolate the fan 10 and the heating tube 13, preventing the temperature of the heating tube 13 from damaging the fan 10. A ventilation pipe 15 is fixedly connected to the inner wall of the outer box 6. The ventilation pipe 15 passes through the outer box 6 and is fixed on the outer surface. A one-way valve 16 is connected to the outer casing 6, and a ventilation pipe 15 is installed on the outer casing 6. The ventilation pipe 15 can relieve pressure inside the outer casing 6 to prevent the door panel 17 from being unable to be opened after drying. The one-way valve 16 is installed on the ventilation pipe 15 and can be used for pressure relief. A motor 5 is fixedly connected to the upper surface of the outer casing 6. The output shaft of the motor 5 is rotatably connected to the rotating shaft 4. The motor 5 is installed on the outer casing 6. Under the action of the motor 5, the rotating shaft 4 can be driven to rotate, which facilitates the rotation of the circuit board inside the outer casing 6 and helps to improve the drying effect.
[0030] Please see Figure 3 and Figure 4 The upper surface of the placement tray 1 is provided with a clamping mechanism 2 for clamping the circuit board. The clamping mechanism 2 includes a fixed plate 201 fixedly connected to the upper surface of the placement tray 1. A pull rod 202 is slidably connected to the inner wall of the fixed plate 201. The pull rod 202 passes through the fixed plate 201. A clamping block 203 is fixedly connected to one end of the pull rod 202. A spring 204 is sleeved on the outer surface of the pull rod 202. A connecting plate 205 is fixedly connected to one end of the spring 204. The other end of the spring 204 is fixedly connected to one side of the fixed plate 201. A pull ring 206 is fixedly connected to the other side of the connecting plate 205. By pulling the pull rings 206 on both sides, the pull rods 202 on both sides can slide on the fixed plate 201, which facilitates clamping the circuit board by the clamping block 203, prevents the circuit board from loosening during drying, and helps to improve the drying effect of the circuit board.
[0031] The motor 5, fan 10, heating element 13 and one-way valve 16 in this application are all common electrical devices in the prior art, and their models or specific structures will not be described in detail in this application.
[0032] Working Principle: After processing, the printed circuit board (PCB) needs to be dried to prevent malfunctions during use. First, the operator places the PCB on the placement tray 1. Pulling the pull ring 206 causes the pull rod 202 to slide, allowing the clamping blocks 203 on both sides to hold the PCB. The spring 204 prevents the PCB from loosening during drying, effectively clamping it in place. Once the PCB is fixed, the motor 5 drives the rotating shaft 4 and placement tray 1 to rotate, facilitating rapid drying. Air is blown into the interior of the outer casing 6 through the outer shell 7 on both sides, and the heating element 13 heats the air. The heated air is then blown into the interior of the outer casing 6 by the fan 10. The second vent 9 and fourth vent 14 on the outer shell 7 facilitate the blowing of heated air into the interior of the outer casing 6, effectively improving drying efficiency and achieving proper clamping of the PCB.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A printed circuit board drying apparatus, comprising a placement tray (1), characterized in that: The upper surface of the placement tray (1) is provided with a clamping mechanism (2) for clamping the circuit board. The clamping mechanism (2) includes a fixing plate (201) fixedly connected to the upper surface of the placement tray (1). A pull rod (202) is slidably connected to the inner wall of the fixing plate (201). The pull rod (202) passes through the fixing plate (201). A clamping block (203) is fixedly connected to one end of the pull rod (202). A spring (204) is sleeved on the outer surface of the pull rod (202). A connecting plate (205) is fixedly connected to one end of the spring (204). The other end of the spring (204) is fixedly connected to one side of the fixing plate (201). A pull ring (206) is fixedly connected to the other side of the connecting plate (205).
2. The printed circuit board drying device according to claim 1, characterized in that: The inner wall of the placement tray (1) is provided with a first ventilation hole (3), and a rotating shaft (4) is fixedly connected to the inner wall of the placement tray (1). The outer surface of the rotating shaft (4) is rotatably connected to the inner wall of the outer box (6), and the rotating shaft (4) passes through the outer box (6).
3. The printed circuit board drying device according to claim 2, characterized in that: A motor (5) is fixedly connected to the upper surface of the outer casing (6), and the output shaft of the motor (5) is rotatably connected to the rotating shaft (4).
4. The printed circuit board drying device according to claim 2, characterized in that: The inner wall of the outer casing (6) is fixedly connected to a ventilation pipe (15), the ventilation pipe (15) penetrates the outer casing (6), and a one-way valve (16) is fixedly connected to the outer surface of the ventilation pipe (15).
5. A printed circuit board drying device according to claim 2, characterized in that: The outer casing (6) is fixedly connected to one side of the outer casing (7), and a partition (11) is fixedly connected inside the outer casing (7). A third vent hole (12) is opened on the inner wall of the partition (11).
6. A printed circuit board drying apparatus according to claim 5, characterized in that: A fixing ring (8) is fixedly connected to one side of the outer shell (7), a second vent hole (9) is opened on one side of the outer shell (7), and a fan (10) is fixedly connected inside the outer shell (7).
7. A printed circuit board drying apparatus according to claim 6, characterized in that: A heating tube (13) is fixedly connected inside the outer shell (7), and a fourth vent (14) is provided on the other side of the outer shell (7).
8. A printed circuit board drying apparatus according to claim 2, characterized in that: A door panel (17) is hinged to the other side of the outer casing (6), and a handle (18) is fixedly connected to one side of the door panel (17).