PCB drying device
By designing a PCB circuit board drying device with an oscillation device and a drainage system, the problems of moisture flowing to low-lying areas and equipment damage in existing drying ovens have been solved, achieving efficient moisture removal and equipment protection.
Patent Information
- Application Number
- CN202422398527.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-30
AI Technical Summary
Existing drying ovens are not suitable for PCB circuit boards, causing surface moisture to flow to low-lying areas, and the lack of drainage equipment may lead to equipment damage and product quality issues.
A PCB circuit board drying device was designed, which includes a drying rack and an oscillation device. The angle of the shelf is adjusted by multiple support rods and a fixed shaft structure of the drying rack, and the water droplets are thrown out by the oscillation device. The water is then efficiently discharged through a drainage trough and a drainage pipe system.
It effectively reduces water residue on the PCB circuit board surface, improves drying efficiency, reduces the risk of equipment damage, and ensures product quality.
Smart Images
Figure CN223484680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board technology, specifically to a PCB circuit board drying device. Background Technology
[0002] PCB boards absorb a significant amount of moisture during manufacturing. Without baking, this internal moisture evaporates in the mounting oven, leading to blistering on the PCB surface, chip detachment, and other adverse effects. Furthermore, the PCB can impact subsequent processes and even cause quality issues with the entire product. The PCB baking process mainly consists of two stages: drying and preheating. Drying involves placing the board in the oven and using a specific temperature and time to evaporate the internal moisture. Preheating, on the other hand, improves adhesion and prevents other problems during the mounting process.
[0003] Existing drying ovens are mostly general-purpose ovens, which are not suitable for drying PCB boards. During the drying process, moisture on the surface of the PCB board tends to flow to the low-lying areas, and the drying ovens lack drainage devices. Residual water stains after drying can easily damage the equipment. In view of this, we propose a PCB circuit board drying device. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a PCB circuit board drying device, which solves the problems mentioned in the background section.
[0006] (2) Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a PCB circuit board drying device, comprising a drying chamber and drying racks. The drying chamber contains multiple drying racks, and a sealed door is located at the front end of the drying chamber. The sealed door includes a door panel, the surface of which is provided with an observation window made of acrylic material. Multiple fixing bolts are fixed to the surface of the observation window, and pull rods are provided on the surfaces of the fixing bolts. Multiple hooks are evenly distributed on the surfaces of the pull rods. A vibration device is located at the top of the door panel, and the pull rods pass through the door panel and connect to the vibration device. The drying racks can be moved up and down by the pull rods, thereby achieving the effect of vibrating the PCB circuit boards on the surface of the drying racks.
[0008] Preferably, the oscillation device includes a turntable frame, the device frame is fixed to the top of the door panel, a cam disk is provided on the surface of the turntable frame, a crank is fixed to the center of the cam disk, a connecting rod is provided at the top of the cam disk, and the connecting rod is fixedly connected to the pull rod.
[0009] Preferably, the drying rack includes multiple support rods and a fixed shaft. The multiple support rods are connected by the fixed shaft, and a shelf is provided on both sides of the multiple fixed shafts. The support rods are evenly distributed at the bottom of the shelf, and the shelf can move up and down through the support rods. The angle of the shelf on both sides of the drying rack can be adjusted by raising the fixed shaft.
[0010] Preferably, the drying oven includes a box body, and the inner wall surfaces on both sides of the box body are provided with fixing grooves. Multiple fixing grooves are provided, and the spacing between the fixing grooves is greater than the thickness of the drying rack, so that the drying rack is not stuck by the fixing grooves when the angle of the drying rack is adjusted.
[0011] Preferably, the bottom ends of the plurality of fixed grooves are connected to drainage grooves, the bottom end of the inner wall of the drainage grooves is provided with a 15° inclination angle, and the drainage grooves are connected by drainage pipes, which connect the drainage grooves to each other. The inclination angle can improve the drainage speed.
[0012] Preferably, the drain pipe of the housing is connected to an external sewage pipe, through which sewage is discharged from the equipment.
[0013] (III) Beneficial Effects
[0014] This utility model provides a PCB circuit board drying device. It has the following beneficial effects:
[0015] (1) The PCB circuit board drying device is equipped with a drying rack. The drying rack is supported by multiple support rods. The support rods are passed through a fixed shaft. The PCB circuit board can be placed on the surface of the support rod. The surface of the surface of the support rod can be moved up and down by the support rod. By raising the fixed shaft, the angle of the surface of the surface of the drying rack on both sides can be adjusted, so that the water droplets remaining on the PCB circuit board on the surface can flow to both sides, reducing the water stains.
[0016] (2) The PCB circuit board drying device, through the setting of the oscillation device, allows the drying rack to float up and down by the pull rod, so that the water droplets remaining on the PCB circuit board on the surface of the drying rack are thrown off, thereby improving the drying efficiency of the PCB circuit board.
[0017] (3) The PCB circuit board drying device is equipped with a drying box. The drying box has a drainage trough inside, which is connected to the fixed groove of the fixed drying rack on both sides. The water that vibrates on the PCB circuit board flows into the fixed groove, and the water inside the fixed groove is discharged through the drainage trough, thereby reducing the moisture inside the equipment and reducing the energy consumption of the equipment. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2This is a schematic diagram of the working structure of this utility model;
[0020] Figure 3 This is a side-section internal structure diagram of the present invention;
[0021] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.
[0022] In the diagram: 1. Drying oven; 2. Sealed door; 3. Drying rack; 11. Oven body; 12. Fixing groove; 13. Drainage groove; 14. Drainage pipe; 21. Door panel; 22. Observation window; 23. Pull rod; 24. Fixing bolt; 25. Vibration device; 251. Turntable frame; 252. Cam plate; 253. Crank handle; 254. Connecting rod; 31. Fixed shaft; 32. Bearing rod; 33. Shelf. Detailed Implementation
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.
[0024] See also Figure 1 - Figure 4 This utility model provides a technical solution:
[0025] A PCB circuit board drying device includes a drying chamber 1 and drying racks 3. Multiple drying racks 3 are arranged inside the drying chamber 1. A sealing door 2 is provided at the front end of the drying chamber 1. The sealing door 2 includes a door panel 21. An observation window 22 made of acrylic material is provided on the surface of the door panel 21 for easy observation of the internal condition. Multiple fixing bolts 24 are fixed to the surface of the observation window 22. Pull rods 23 are provided on the surface of the multiple fixing bolts 24. Multiple hooks are evenly distributed on the surface of the pull rods 23. A vibration device 25 is provided at the top of the door panel 21. 23 is connected to the vibrating device 25 through the door panel 21. The vibrating device 25 includes a turntable frame 251, which is fixed to the top of the door panel 21. A cam plate 252 is provided on the surface of the turntable frame 251. A crank 253 is fixed at the center of the cam plate 252. A connecting rod 254 is provided at the top of the cam plate 252. The connecting rod 254 is fixedly connected to the pull rod 23. The drying rack 3 can be driven to float up and down by the pull rod 23, thereby achieving the effect of vibrating the PCB circuit board on the surface of the drying rack 3, so that the water droplets remaining on the PCB circuit board on the surface of the drying rack 3 are shaken off.
[0026] The drying rack 3 includes multiple support rods 32 and a fixed shaft 31. The multiple support rods 32 are connected by the fixed shaft 31. A shelf 33 is provided on both sides of the fixed shaft 31. The support rods 32 are evenly distributed at the bottom of the shelf 33. The drying rack 3 is supported by multiple support rods 32, and the support rods 32 are connected by a fixed shaft 31. The shelf 33 on the surface of the support rods 32 can hold PCB circuit boards. The shelf 33 can move up and down through the support rods 32. By raising the fixed shaft 31, the angle of the shelf 33 on both sides of the drying rack 3 can be adjusted, so that the water droplets remaining on the PCB circuit board on the shelf 33 can flow to both sides, reducing water stains.
[0027] The drying oven 1 includes a box body 11. The inner wall surfaces on both sides of the box body 11 are provided with fixing grooves 12. Multiple fixing grooves 12 are provided, and the spacing between the fixing grooves 12 is greater than the thickness of the drying rack 3, so that the drying rack 3 will not get stuck in the fixing grooves 12 on both sides when the angle of the drying rack 3 is adjusted. The bottom ends of the multiple fixing grooves 12 are connected to drainage grooves 13. The bottom end of the inner wall of the drainage groove 13 is provided with a 15° inclination angle, which can improve the drainage speed. The drainage grooves 13 are connected to each other by a drainage pipe 14. The drainage pipe 14 of the box body 11 is connected to an external sewage pipe. The drainage grooves 13 are connected to the fixing grooves 12 of the drying rack 3 on both sides. Water vibrating on the PCB circuit board flows into the fixing grooves 12, and the water inside the fixing grooves 12 is discharged through the drainage grooves 13.
[0028] When using the PCB circuit board drying device of this utility model, the PCB circuit board to be dried needs to be placed on the surface of the shelf 33 on both sides of the drying rack 3, the sealing door 2 at the front of the drying chamber 1 is closed and locked, and preparations for drying can begin. Before drying, the circuit board can be vibrated by turning the crank 253. The crank 253 drives the cam plate 252 to rotate on the surface of the turntable frame 251. During the rotation of the cam plate 252, the protruding part on the surface of the cam plate 252 drives the connecting rod 254 on the surface to lift up. The connecting rod 254 drives the pull rod 23 inside the sealing door 2 to lift up, so that the hook on the surface of the pull rod 23 lifts the fixed shaft 31 at the front of the drying rack 3. The support rod 32 is tilted, and the PCB circuit board on the surface of the shelf 33 is tilted simultaneously. By continuously rotating the cam disk 252, the shelf 33 is frequently moved up and down, thus agitating the water on the surface of the PCB circuit board. After agitation, the crank handle 253 is rotated, causing the cam disk 252 to push the connecting rod 254 to its highest point, raising the pull rod 23. The shelf 33 remains tilted, and drying can begin. During the drying process, water on the surface of the PCB circuit board and cardboard flows along the tilted shelf 33 into the fixing grooves 12 on both sides. The drainage grooves 13 inside the fixing grooves 12 collect the water and discharge it through the drain pipe 14, which is connected to one end of the drainage grooves 13. This reduces the generation of water stains on the PCB circuit board and inside the drying equipment.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A PCB circuit board drying device, comprising a drying chamber (1) and a drying rack (3), characterized in that: The drying oven (1) is equipped with multiple drying racks (3) inside. The front end of the drying oven (1) is equipped with a sealing door (2). The sealing door (2) includes a door panel (21). The surface of the door panel (21) is equipped with an observation window (22). The surface of the observation window (22) is fixed with multiple fixing bolts (24). The surface of the multiple fixing bolts (24) is equipped with a pull rod (23). The surface of the pull rod (23) is equidistantly distributed with multiple hooks. The top of the door panel (21) is equipped with an oscillation device (25). The pull rod (23) passes through the door panel (21) and is connected to the oscillation device (25).
2. The PCB circuit board drying apparatus according to claim 1, characterized in that: The oscillation device (25) includes a turntable frame, which is fixed to the top of the door panel (21). A cam plate (252) is provided on the surface of the turntable frame. A crank (253) is fixed at the center of the cam plate (252). A connecting rod (254) is provided at the top of the cam plate (252). The connecting rod (254) is fixedly connected to the pull rod (23).
3. The PCB circuit board drying apparatus according to claim 1, characterized in that: The drying rack (3) includes multiple support rods (32) and a fixed shaft (31). The multiple support rods (32) are connected by the fixed shaft (31). A shelf (33) is provided on both sides of the multiple fixed shafts (31). The support rods (32) are equidistantly distributed at the bottom of the shelf (33).
4. The PCB circuit board drying apparatus according to claim 3, characterized in that: The drying box (1) includes a box body (11), and the inner wall surfaces on both sides of the box body (11) are provided with fixing grooves (12). There are multiple fixing grooves (12), and the spacing between the fixing grooves (12) is greater than the thickness of the drying rack (3).
5. The PCB circuit board drying apparatus according to claim 4, characterized in that: The bottom ends of the plurality of fixed grooves (12) are connected to drainage grooves (13), the bottom end of the inner wall of the drainage grooves (13) is provided with a 15° inclination angle, and the drainage grooves (13) are connected to each other by drainage pipes (14).
6. The PCB circuit board drying apparatus according to claim 5, characterized in that: The drain pipe (14) of the box (11) is connected to the external sewage pipe.