Circuit board paint dipping jig
By using a positioning mold and a positioning plate to fix the circuit board, and combining the use of a sliding plate and lifting components, the problem of the circuit board shaking during the varnishing process is solved, ensuring the uniformity and stability of the varnishing and improving the efficiency of fixing and installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-13
AI Technical Summary
In existing circuit board impregnation fixtures, the circuit board is prone to shaking during the impregnation process, resulting in uneven coating and affecting the impregnation effect.
The circuit board is fixed by using a positioning mold and a positioning plate. The position of the positioning mold is adjusted by a sliding plate, and the height of the round rod is adjusted by a lifting component and an electric push rod to ensure the stability of the circuit board during the impregnation process.
This achieves uniformity and integrity in the enamel impregnation of circuit boards, improving fixing and installation efficiency.
Smart Images

Figure CN223993770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of varnish impregnation fixture technology, and more specifically to a circuit board varnish impregnation fixture. Background Technology
[0002] Circuit boards (PCBs) are electronic components formed by printing, etching, or electroplating conductive lines and component connection points on an insulating substrate. PCBs are indispensable basic components in electronic devices, acting as the "skeleton" of these devices, supporting the connection and communication of various electronic components. From mobile phones and computers to home appliances, and even spacecraft and military equipment, almost all electronic devices rely on PCBs. Impregnation is an important protective process in PCB manufacturing. After impregnation, the enamel layer effectively prevents moisture from contacting the PCB, providing moisture protection. Furthermore, the protective film formed by impregnation can resist chemical corrosion, extending the PCB's lifespan.
[0003] Existing circuit board impregnation fixtures generally consist of a suspension frame and hooks. The suspension frame is used to fix the circuit board above the impregnation equipment, and the circuit board is suspended on the fixture by the hooks so that it can fully contact the paint during the impregnation process. For example, there is a small automatic reversible impregnation equipment with prior art publication number CN217450745U.
[0004] However, the existing technology has the following problems when used: traditional circuit board impregnation fixtures generally hang the circuit board directly on the hook for impregnation. Since the paint is fluid and the hook is placed flexibly, the circuit board will be pushed by the paint and shake when it is immersed in the paint. The shaking circuit board will cause the paint on its surface to be uneven and incomplete, thus affecting the impregnation effect of the circuit board. Based on this, the present invention provides a circuit board impregnation fixture with high stability. Summary of the Invention
[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides a circuit board impregnation fixture. By using positioning molds and positioning plates to fix the circuit board, it effectively prevents the circuit board from shaking and keeps the circuit board stable during the impregnation process. This ensures the uniformity and integrity of the circuit board impregnation. Furthermore, the sliding plate allows for the simultaneous adjustment of the positions of multiple positioning molds, thereby improving the fixing efficiency of the circuit board and solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a circuit board impregnation fixture, including a top plate, a rectangular through groove at the top of the top plate, a plurality of round rods inside the rectangular through groove, each round rod having a hook for suspending the circuit board for impregnation, the plurality of round rods being installed in the rectangular through groove via a lifting assembly, a sliding groove at the rear of the top of the top plate, a sliding plate being slidably disposed inside the sliding groove, a positioning mold having a number of molds at the front end of the sliding plate equal to the number of circuit boards, two positioning plates on one side of each positioning mold, the two positioning plates being located on the front and rear sides of two hooks, the two positioning plates cooperating with one positioning mold to fix the circuit board.
[0007] In a preferred embodiment, a fixing block is fixedly provided at the top of the slide plate. The fixing block is detachably connected to the top plate by fastening bolts. By loosening the fastening bolts, it is convenient for the operator to adjust the position of the positioning mold.
[0008] In a preferred embodiment, each hook has a pin extending through its tip, and each rod has a slot at its tip that matches the pin. The pin is inserted into the slot to fix the hook in place, thereby improving the stability of the hook on the rod and further enhancing the stability of the circuit board.
[0009] In a preferred embodiment, each positioning mold is detachably connected to the slide plate, and each positioning plate is detachably connected to the top plate, facilitating the disassembly and replacement of the positioning mold and positioning plate.
[0010] In a preferred embodiment, the lifting assembly includes two long plates, and multiple round rods are detachably installed between the two long plates. A connecting plate is fixedly provided at the top of each of the two long plates, and at least one electric push rod is fixedly provided at the bottom of the connecting plate. The height of the round rods can be automatically adjusted using the electric push rod, making it more time-saving and labor-saving to use.
[0011] In a preferred embodiment, the top of the top plate has the same number of slots as the number of electric push rods, and the multiple electric push rods are fixed in the multiple slots respectively to accommodate the electric push rods and avoid the electric push rods being exposed and affecting the aesthetics.
[0012] In a preferred embodiment, the top of the top plate is provided with a plurality of mounting holes, which are evenly distributed on the top of the top plate to facilitate the installation of the top plate.
[0013] The technical effects and advantages of this utility model are as follows: This utility model uses a positioning mold and a positioning plate to fix the circuit board, which effectively prevents the circuit board from shaking and keeps the circuit board stable during the varnishing process. This ensures the uniformity and integrity of the varnishing process. Furthermore, the position of multiple positioning molds can be adjusted simultaneously by a sliding plate, thereby improving the fixing efficiency of the circuit board.
[0014] The connecting plate is driven to move upward by the extension of the electric push rod. The connecting plate moves the long plate and multiple round rods between the two long plates upward together. The round rods and hooks move multiple circuit boards to the positioning mold, which makes it easy for the positioning mold to be quickly put on the outside of the circuit board, thus improving the installation efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a front view of the overall structure of this utility model;
[0017] Figure 3 This is a bottom view of the overall structure of this utility model;
[0018] Figure 4 This is a structural diagram of the positioning mold and circuit board of this utility model;
[0019] Figure 5 This is a structural diagram of the lifting component of this utility model;
[0020] Figure 6 This is a structural diagram of the round rod and hook of this utility model.
[0021] The attached diagram is labeled as follows: 1. Top plate; 2. Rectangular through slot; 3. Round rod; 4. Hook; 5. Lifting assembly; 6. Slide; 7. Slide plate; 8. Positioning mold; 9. Positioning plate; 10. Fixing block; 11. Fastening bolt; 12. Pin; 13. Slot; 14. Embedded groove; 15. Mounting hole;
[0022] 501. Long plate; 502. Connecting plate; 503. Electric push rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Refer to the instruction manual appendix Figure 1-6This utility model provides a circuit board impregnation fixture, including a top plate 1. A rectangular through groove 2 is provided at the top of the top plate 1. Multiple round rods 3 are provided inside the rectangular through groove 2. Each round rod 3 is equipped with a hook 4 for hanging the circuit board for impregnation. The multiple round rods 3 are installed in the rectangular through groove 2 through a lifting assembly 5. A sliding groove 6 is provided at the rear side of the top of the top plate 1. A sliding plate 7 is slidably provided inside the sliding groove 6. The front end of the sliding plate 7 is provided with a number of positioning molds 8 equal to the number of circuit boards. Each positioning mold 8 is provided with two positioning plates 9 on one side. The two positioning plates 9 are located on the front and rear sides of the two hooks 4. The two positioning plates 9 cooperate with one positioning mold 8 to fix the circuit board.
[0025] A fixing block 10 is fixedly provided at the top of the slide plate 7. The fixing block 10 is detachably connected to the top plate 1 by fastening bolts 11. By loosening the fastening bolts 11, it is convenient for the staff to adjust the position of the positioning mold 8. Each positioning mold 8 is detachably connected to the slide plate 7, and each positioning plate 9 is detachably connected to the top plate 1, which facilitates the disassembly and replacement of the positioning mold 8 and positioning plate 9. Each hook 4 has a pin 12 passing through its top, and each round rod 3 has a slot 13 that matches the pin 12 at its top. The pin 12 is inserted into the slot 13 to fix the hook 4, thereby improving the stability of the hook 4 on the round rod 3 and further improving the stability of the circuit board. The top plate 1 has multiple mounting holes 15 evenly distributed at its top for easy connection of the top plate 1.
[0026] In actual use, first place a circuit board to be dipped in paint on the two hooks 4 on each round rod 3, then push the fixing block 10 and the sliding plate 7 to move multiple positioning molds 8 to the left, so that the multiple positioning molds 8 are respectively fitted on the outer top of multiple circuit boards. At this time, the worker tightens the fastening bolts 11 to prevent the positioning molds 8 from moving. At the same time, the two positioning plates 9 limit the circuit board on the left side. The positioning plates 9 and the positioning molds 8 are used to keep the circuit board stable to prevent the circuit board from shaking during the paint dipping process, thereby ensuring the uniformity and integrity of the paint dipping of the circuit board. After the paint dipping is completed, the entire fixture is first removed from the paint liquid, and then the worker pushes the slider to move the positioning molds 8 away from the circuit board, so that the circuit board can be disassembled.
[0027] Refer to the instruction manual appendix Figure 1-5The lifting assembly 5 includes two long plates 501, and multiple round rods 3 can be detachably installed between the two long plates 501. A connecting plate 502 is fixedly provided at the top of each of the two long plates 501. At least one electric push rod 503 is fixedly provided at the bottom of the connecting plate 502. The height of the round rods 3 can be automatically adjusted by using the electric push rod 503, which is more time-saving and labor-saving. The top plate 1 has a number of slots 14 as many as the number of electric push rods 503. Multiple electric push rods 503 are fixed in multiple slots 14 respectively for installing electric push rods 503, avoiding the electric push rods 503 from being exposed and affecting the appearance.
[0028] Before adjusting the position of the positioning mold 8, the electric push rod 503 is used to extend and drive the connecting plate 502 to move upward. The connecting plate 502 drives the long plate 501 and the multiple round rods 3 between the two long plates 501 to move upward together. The round rods 3 and the hooks 4 drive multiple circuit boards to move upward to the positioning mold 8, so that the positioning mold 8 can be quickly fitted onto the outside of the circuit board, improving the installation efficiency.
[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A circuit board impregnation jig, characterized by: The utility model relates to a kind of line board hanging and fixing device, including top plate (1), the top plate (1) top is equipped with rectangular through slot (2), the rectangular through slot (2) is equipped with multiple round rods (3) inside, each round rod (3) is placed with the hook (4) for hanging line board dip paint, multiple round rods (3) are installed in rectangular through slot (2) by lifting assembly (5);The top plate (1) top rear side is equipped with sliding slot (6), the sliding slot (6) is slidably equipped with sliding plate (7), the sliding plate (7) front end is equipped with with the same number of positioning mould (8) of line board, each positioning mould (8) one side is equipped with two positioning plates (9), and two positioning plates (9) are located in the front and back sides of two hooks (4), two positioning plates (9) and one positioning mould (8) cooperate for fixed line board.
2. The circuit board impregnation jig of claim 1, wherein: The sliding plate (7) top is fixedly equipped with fixed block (10), and the fixed block (10) is detachably connected with the top plate (1) by fastening bolt (11).
3. The circuit board impregnation jig of claim 1, wherein: Each hook (4) top is penetrated by latch (12), and each round rod (3) top is equipped with slot (13) matched with latch (12), and the latch (12) is inserted with the slot (13).
4. The circuit board impregnation jig of claim 1, wherein: Each positioning mould (8) is detachably connected with the sliding plate (7), and each positioning plate (9) is detachably connected with the top plate (1).
5. The circuit board impregnation jig of claim 1, wherein: The lifting assembly (5) includes two long plates (501), and multiple round rods (3) are detachably installed between the two long plates (501), and the two long plates (501) top are fixedly equipped with connecting plate (502), and the connecting plate (502) bottom is fixedly equipped with at least one electric push rod (503).
6. The circuit board impregnation jig of claim 5, wherein: The top plate (1) top is equipped with with the same number of embedding slot (14) of electric push rod (503), and multiple electric push rods (503) are fixed in multiple embedding slots (14) respectively.
7. The circuit board impregnation jig of claim 1, wherein: The top plate (1) top is equipped with multiple mounting holes (15), and multiple mounting holes (15) are evenly distributed on the top plate (1) top.
Citation Information
Patent Citations
Small-sized automatic reversible paint dipping equipment
CN217450745U