Three-proofing oil brushing jig

By using the design of magnet components and protective rings in the three-proof oil brushing fixture, the problem of three-proof oil overflow is solved, and precise coating and efficient spraying are achieved. It is suitable for three-proof oil coating of LED light panels.

CN223475472UActive Publication Date: 2025-10-28LEDMAN OPTOELECTRONIC HZ CO LTD
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Patent Information

Application Number
CN202422539429.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-10-28
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

In the prior art, conformal coating easily overflows onto the jig when spraying PCBAs, requiring regular cleaning of the jig.

Method used

A three-proof oil brushing jig is designed, which includes a base and a cover. The base is provided with a magnet assembly, and the cover is provided with a magnet and a protective ring corresponding to the magnet assembly. The cover is quickly positioned by the attraction of the magnet assembly, and the protective ring is used to prevent the three-proof oil from overflowing.

Benefits of technology

It achieves precise positioning and coating of the three-proof oil, prevents overflow onto the fixture, improves spraying efficiency, and can be used in automated equipment to improve production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a three-proofing oil brushing jig which comprises a base and a cover plate, a lamp panel groove and a plurality of first magnet assemblies are arranged on the base, and the first magnet assemblies are arranged in the circumferential direction of the lamp panel groove at intervals. The cover plate is rotatably arranged on the base, a protective ring matched with the lamp panel groove is arranged on the face, close to the base, of the cover plate, and a plurality of second magnet assemblies corresponding to the first magnet assemblies are further arranged on the cover plate. According to the utility model, rapid downward pressing and positioning can be realized, and during downward pressing, a non-oil-brushed area is protected, so that three-proofing oil can be prevented from overflowing to the jig.
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Description

Technical Field

[0001] This utility model relates to the field of LED technology, and in particular to a three-proof oil coating fixture. Background Technology

[0002] As is well known, existing PCBAs (such as LED light boards) have requirements for moisture resistance, salt spray resistance, and mold resistance. To meet these requirements, PCBAs are coated with conformal coating (i.e., conformal paint). In practical applications, when applying conformal coating to PCBAs, certain areas need to be protected. Current technology typically involves using masking tape to protect these areas. However, this method makes it easy for the conformal coating to overflow onto the fixture, requiring regular cleaning of the fixture. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a three-proof oil coating fixture to solve the problem that the three-proof oil is easy to overflow onto the fixture.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a three-proof oil coating fixture, which includes a base and a cover plate. The base is provided with a lamp plate groove and a plurality of first magnet assemblies, which are spaced apart along the circumference of the lamp plate groove. The cover plate is rotatably mounted on the base. The cover plate is provided with a protective ring adapted to the lamp plate groove on the side near the base. The cover plate is also provided with a plurality of second magnet assemblies corresponding to the first magnet assemblies.

[0005] Furthermore, in the three-proof oil coating fixture described in this utility model, the cover plate includes a cover plate body and multiple snap-fit ​​parts, with the multiple snap-fit ​​parts disposed on the cover plate body.

[0006] Furthermore, in the three-proof oil coating fixture described in this utility model, the protective ring is provided with multiple protective sleeves, and the protective sleeves are disposed on the buckle portion.

[0007] Furthermore, the three-proof oil coating fixture of this utility model includes four second magnet assemblies. The cover plate body has a rectangular ring structure, wherein the four second magnet assemblies are respectively disposed at the four corners of the cover plate body.

[0008] Furthermore, in the three-proof oil coating fixture described in this utility model, the base is provided with a groove, and at least part of the groove is located in the lamp plate groove.

[0009] Furthermore, the three-proof oil coating fixture described in this utility model includes two grooves, which are symmetrically arranged along the horizontal length direction of the lamp plate groove.

[0010] Furthermore, in the three-proof oil coating fixture described in this utility model, the cover plate has a hollowed-out portion, and the protective ring is disposed around the periphery of the hollowed-out portion.

[0011] Furthermore, in the three-proof oil coating fixture described in this utility model, the base is also provided with a recessed portion, which is connected to the lamp plate groove.

[0012] Furthermore, the three-proof oil coating fixture described in this utility model includes four first magnet assemblies, which are evenly distributed along the circumference of the lamp plate groove.

[0013] Furthermore, in the three-proof oil coating fixture described in this utility model, the base is provided with a connecting part, the cover plate is provided with a rotating part, and the connecting part is hinged to the rotating part.

[0014] Furthermore, in the three-proof oil coating fixture described in this utility model, the protective ring is made of silicone.

[0015] The beneficial effects of this invention are as follows: Multiple first magnet assemblies are arranged on the base, and multiple corresponding second magnet assemblies are arranged on the cover plate. When the cover plate is pressed onto the base, it can be quickly positioned by the first and second magnet assemblies. Furthermore, during pressing, the first and second magnet assemblies provide downward pressure on the cover plate. In addition, this invention provides a protective ring on the side of the cover plate near the base that matches the LED panel groove. By contacting the protective ring (such as a soft silicone pad) with the LED panel driving surface, it protects the non-oil-applied area and prevents the conformal coating from overflowing onto the fixture. Furthermore, this fixture can be used as a carrier in automated equipment for applying conformal coating, which can improve the efficiency of conformal coating application. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the three-proof oil coating fixture described in this utility model from one perspective in one embodiment.

[0017] Figure 2 This is a schematic diagram of the structure of the three-proof oil coating fixture described in this utility model from another perspective under one embodiment.

[0018] Figure 3 This is a schematic diagram of the structure of the three-proof oil coating fixture described in this utility model from another perspective under one embodiment.

[0019] Figure 4 This is a schematic diagram of the combination of the three-proof oil coating fixture and the LED light board described in this utility model from one perspective in one embodiment.

[0020] Label Explanation:

[0021] 1. Base; 11. Lamp panel groove; 12. Groove; 13. Recessed part; 14. Connecting part;

[0022] 2. Cover plate; 21. Cover plate body; 22. Buckle part; 23. Rotating part; 24. Hollowed-out part;

[0023] 3. Protective ring; 31. Protective cover;

[0024] 4. The first magnet;

[0025] 5. The second magnet;

[0026] 6. LED light panel. Detailed Implementation

[0027] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0028] Please refer to Figures 1 to 4 This utility model provides a three-proof oil coating fixture, which includes a base 1 and a cover plate 2. The base 1 is provided with a lamp plate groove 11 and a plurality of first magnet assemblies, which are arranged at intervals along the circumference of the lamp plate groove 11. The cover plate 2 is rotatably mounted on the base 1. The cover plate 2 is provided with a protective ring 3 on the side near the base 1 that is adapted to the lamp plate groove 11. The cover plate 2 is also provided with a plurality of second magnet assemblies corresponding to the positions of the first magnet assemblies.

[0029] An LED light board is a specific type of PCBA (Printed Circuit Board Assembly) designed specifically to implement the lighting function of LEDs (Light Emitting Diodes). In other words, an LED light board is a PCBA specifically designed for LED lighting. PCBA (Printed Circuit Board Assembly) refers to the process of mounting electronic components on a PCB (Printed Circuit Board) and completing subsequent processes such as soldering. Simply put, a PCBA is a PCB with components already assembled.

[0030] In practical use, if you want to apply conformal coating to LED light panels, you can first place the LED light panel with the driver side facing up on the base 1. Then, press the cover plate 2 onto the base 1 to accurately position the protected area. Then, use this fixture as a carrier to add it to the automated equipment for conformal coating, i.e., pass it through the automated spraying equipment on the production line to apply conformal coating to the LED light panel. After that, you can take out the coated light panel.

[0031] As described above, the beneficial effects of this invention are as follows: Multiple first magnet assemblies are provided on the base 1, and multiple corresponding second magnet assemblies are provided on the cover plate 2. When the cover plate 2 is pressed onto the base 1, it can be quickly positioned by the first and second magnet assemblies. Furthermore, during pressing, the first and second magnet assemblies provide downward pressure on the cover plate 2. In addition, this invention provides a protective ring 3 (such as a soft silicone pad) that fits the LED light board groove on the side of the cover plate near the base. By contacting the protective ring 3 with the LED light board driving surface, it protects the non-oil-applied area and prevents the conformal coating from overflowing onto the fixture. Furthermore, this fixture can be used as a carrier for automated equipment to spray conformal coating, improving the efficiency of the coating process.

[0032] Furthermore, in the three-proof oil coating fixture described in this utility model, the cover plate 2 includes a cover plate body 21 and a plurality of snap fasteners 22, with the plurality of snap fasteners 22 disposed on the cover plate body 21.

[0033] As can be seen from the above description, a snap-fit ​​part 22 is provided on the cover plate body 21 to facilitate pressing the LED light board into the light board groove 11 during coating and prevent displacement.

[0034] Furthermore, in the three-proof oil coating fixture described in this utility model, the protective ring 3 is provided with a plurality of protective sleeves 31, and the protective sleeves 31 are disposed on the buckle part 22.

[0035] As can be seen from the above description, a protective sleeve 31 is provided on the buckle part 22 to prevent the three-proof oil from being sprayed onto the buckle part 22 when applying the three-proof oil.

[0036] Furthermore, the three-proof oil coating fixture of this utility model includes four second magnet assemblies. The cover plate body 21 has a rectangular ring structure, wherein the four second magnet assemblies are respectively disposed at the four corners of the cover plate body 21.

[0037] As described above, the cover plate body 21 has a rectangular ring structure. The hollowed-out position in the middle of the cover plate body 21 corresponds to the lamp plate groove 11. When the upper cover plate 2 is pressed onto the base 1, the protected area can be accurately positioned. Four sets of second magnets are respectively set at the four corners of the cover plate body 21, so that the magnets at the four corners can provide a more balanced downward pressure on the cover plate 2.

[0038] Furthermore, in the three-proof oil coating fixture described in this utility model, the base 1 is provided with a groove 12, and at least part of the groove 12 is located in the lamp plate groove 11.

[0039] As can be seen from the above description, a groove 12 is provided on the base 1 to facilitate placing the LED light board into the light board groove 11 or taking it out of the light board groove 11, and to facilitate opening the top cover 2.

[0040] Furthermore, the three-proof oil coating fixture described in this utility model includes two grooves 12, which are symmetrically arranged along the horizontal length direction of the lamp plate groove 11.

[0041] Furthermore, in the three-proof oil coating fixture described in this utility model, the base 1 is also provided with a recessed portion 13, which communicates with the lamp plate groove 11. As can be seen from the above description, the corresponding recessed portion 13 facilitates the opening of the upper cover 2.

[0042] Furthermore, in the three-proof oil coating fixture described in this utility model, the cover plate 2 has a hollow portion 24, and the protective ring is disposed around the hollow portion 24.

[0043] As can be seen from the above description, the hollow part 24 is correspondingly provided with the lamp plate groove 11. When the cover plate 2 is pressed onto the lamp base 1, the LED lamp plate placed in the lamp plate groove 11 can be sprayed with three-proof oil through the hollow part 24.

[0044] Furthermore, the three-proof oil coating fixture described in this utility model includes four first magnet assemblies, which are evenly distributed along the circumference of the lamp plate groove 11.

[0045] As described above, the base 1 has a first magnet assembly at each of the four corners, which facilitates quick positioning and provides a relatively balanced downward pressure.

[0046] Furthermore, in the three-proof oil coating fixture described in this utility model, the base 1 is provided with a connecting part 14, the cover plate 2 is provided with a rotating part 23, and the connecting part 14 is hinged to the rotating part 23.

[0047] As can be seen from the above description, by providing a connecting part 14 on the base 1 and a rotating part 23 on the cover plate 2, and hinged to the two, the cover plate 2 can be rotatably connected to the base 1, thereby enabling the upper cover plate 2 to be pressed onto the base 1 when spraying the three-proof oil.

[0048] Furthermore, in the three-proof oil coating fixture described in this utility model, the protective ring 3 can be made of silicone. By having the protective ring 3 (such as a soft silicone pad) contact the display driving surface, it protects the areas not being coated and prevents the three-proof oil from overflowing.

[0049] Please refer to Figures 1 to 4Embodiment 1 of this utility model is: a three-proof oil coating fixture, used for coating LED light panels with three-proof oil (i.e., three-proof paint). The three-proof oil coating fixture includes a base 1 and a cover plate 2, the cover plate 2 being rotatably mounted on the base 1. The following describes the application of this fixture in conjunction with... Figures 1 to 4 The above components will be described in detail.

[0050] In this embodiment, as Figure 1 as well as Figure 2 As shown, the base 1 is a rectangular structure. A lamp plate groove 11 is provided on the upper surface of the base 1, located at the center of the upper surface. This groove is used to place the LED lamp plate to be coated with conformal coating. The specific shape of the lamp plate groove 11 can be adjusted according to actual conditions; in this embodiment, the lamp plate groove 11 is a rectangular structure. Two grooves 12 are provided on the side of the lamp plate groove 11 extending along its length. The two grooves 12 are symmetrically arranged about the central axis of the length extension direction of the lamp plate groove 11, and both grooves 12 are located at the middle position of the side of the lamp plate groove 11 extending along its length.

[0051] In this embodiment, as Figure 2 As shown, the cover plate 2 has a ring-shaped rectangular structure, meaning that the cover plate 2 has a hollow section in the middle, which corresponds to the lamp panel groove 11. When the cover plate 2 is pressed onto the lamp base 1, the hollow section corresponds to the position of the lamp panel groove 11, allowing the LED lamp panel placed in the lamp panel groove 11 to be sprayed with conformal coating through the hollow section. The cover plate 2 includes a cover plate body 21 and multiple snap-fit ​​parts 22. The multiple snap-fit ​​parts 22 are arranged on two sides extending along the horizontal width direction of the cover plate body 21, with two snap-fit ​​parts 22 corresponding to each side, and the two snap-fit ​​parts 22 are spaced a certain distance apart. Figure 3 As shown, the latching part 22 extends inward from the side of the cover plate body 21, and its cross-sectional shape is similar to a circular structure. A protective ring 3, adapted to the lamp plate groove 11, is provided on the side of the cover plate 2 near the base 1. The protective ring 3 is also similar in shape to a rectangular ring and is located on the lower surface of the inner ring of the cover plate 2, that is, on the lower surface of the cover plate 2, and is located around the periphery of the hollow portion of the cover plate 2. When the cover plate 2 is pressed onto the lamp base 1, the protective ring 3 is pressed onto the periphery of the lamp plate groove 11. Furthermore, since the cover plate body 21 has multiple latching parts 22, when the cover plate 2 is pressed onto the lamp base 1, the latching parts 22 will also correspondingly press onto the lamp plate groove 11. Therefore, in this embodiment, multiple protective sleeves 31 are correspondingly provided on the protective ring 3, and these protective sleeves 31 are provided on the latching parts 22 to protect the unpainted area.

[0052] In this embodiment, as Figure 2 as well as Figure 3As shown, the cover plate body 21 of the annular rectangular structure is provided with four second magnet assemblies, which are located at the four corners of the cover plate body 21. Each second magnet assembly includes at least one second magnet 5. Correspondingly, four first magnet assemblies are provided on the outer edges of the four corners of the lamp plate groove 11 of the rectangular structure. Each group of first magnet assemblies includes at least one first magnet 4. In an optional embodiment, if the first magnet assembly includes two first magnets 4, both first magnets 4 are located near the periphery of the rectangular corner of the lamp plate groove 11. It should be noted that the second magnets on the cover plate body 21 and the first magnets on the lamp base 1 are positioned to provide downward pressure, facilitating the rapid positioning of the cover plate 2 by pressing down. In addition, a connecting part 14 is provided on the base 1, and a rotating part 23 is provided on the cover plate 2 accordingly. The connecting part 14 and the rotating part 23 are hinged together.

[0053] In summary, the three-proof oil coating fixture provided by this utility model: (1) It can quickly position and block the surface by means of magnets, and provide downward pressure. By contacting the protective ring with the avoidance area of ​​the drive surface, the three-proof oil can be protected under the action of magnetic pressure. In addition, the fixture can be used as a carrier to spray three-proof oil in automated equipment, which can improve production efficiency. (2) It conforms to the ergonomic design. When pressing down, the downward pressure is provided by magnets, which can quickly position the surface. At the same time, the silicone pad is set around the drive surface of the LED light board, which can protect the area that is not coated with oil and protect the components. (3) The base and the cover plate can be quickly positioned by means of magnets on four sides, and can provide downward pressure.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A three-proof oil coating fixture, characterized in that, The device includes a base and a cover plate. The base has a lamp plate slot and a plurality of first magnet assemblies, which are spaced apart circumferentially along the lamp plate slot. The cover plate is rotatably mounted on the base. The cover plate has a protective ring on the side near the base that is adapted to the lamp plate slot. The cover plate also has a plurality of second magnet assemblies that are corresponding to the first magnet assemblies.

2. The three-proof oil coating fixture according to claim 1, characterized in that, The cover plate includes a cover plate body and multiple snap fasteners, which are disposed on the cover plate body.

3. The three-proof oil coating fixture according to claim 2, characterized in that, The protective ring is provided with multiple protective sleeves, which are set on the buckle portion.

4. The three-proof oil coating fixture according to claim 2, characterized in that, The cover plate body has a rectangular ring structure and includes four second magnet assemblies. The four second magnet assemblies are respectively located at the four corners of the cover plate body.

5. The three-proof oil coating fixture according to claim 1, characterized in that, The base has a groove, and at least part of the groove is located in the lamp plate groove.

6. The three-proof oil coating fixture according to claim 5, characterized in that, It includes two grooves, which are symmetrically arranged along the horizontal length of the lamp plate groove.

7. The three-proof oil coating fixture according to claim 1, characterized in that, The cover plate has a hollow section, and the protective ring is disposed around the periphery of the hollow section.

8. The three-proof oil coating fixture according to claim 1, characterized in that, The base is also provided with a recessed portion, which is connected to the lamp plate groove.

9. The three-proof oil coating fixture according to claim 1, characterized in that, It includes four first magnet assemblies, which are evenly distributed along the circumference of the lamp plate groove.

10. The three-proof oil coating fixture according to claim 1, characterized in that, The base is provided with a connecting part, and the cover plate is provided with a rotating part, and the connecting part is hinged to the rotating part.