A device for curing a three-proofing paint

By optimizing the cold air flow path through the double glass cover structure and the serrated reflector design, the problem of uneven heat dissipation in the UV curing lamp box is solved, resulting in a more uniform curing effect and equipment stability, and extending the service life of the UV lamp tubes.

CN224308885UActive Publication Date: 2026-06-02ZHONGYU (HUIZHOU) OPTOELECTRONICS TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGYU (HUIZHOU) OPTOELECTRONICS TECHNOLOGY CO LTD
Filing Date
2025-03-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing UV curing light boxes suffer from uneven heat dissipation and excessively high local temperatures, which affect the curing uniformity of conformal coatings and the stability of the equipment.

Method used

It adopts a double glass cover structure, with an arc-shaped airflow channel connected to the air outlet. Combined with a serrated reflector, it optimizes the flow path of cold air, and provides cold air through the air inlet to remove heat, forming a multi-layer airflow channel for uniform heat dissipation.

Benefits of technology

It achieves uniform heat dissipation of UV lamps, avoids local overheating, extends equipment life, improves curing effect and equipment stability, and prevents yellowing of conformal coatings and product deformation.

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Abstract

The utility model belongs to three -proof paint curing technical field discloses a kind of for three -proof paint curing device, wherein, including lampshade, is equipped with air outlet;Glass cover, equipped with 2 and all be located in lampshade, 2 glass covers jointly form airflow channel, airflow channel is communicated with air outlet;UV lamp tube, between 2 glass covers, for emitting ultraviolet rays;Wherein, 2 glass covers are arc design and jointly formed with first airflow channel, first airflow channel is communicated with air outlet, for guiding air flow. Through the design makes heat can be efficiently discharged, improve heat dissipation uniformity, effectively reduce the local overheating phenomenon of curing area, prevent three -proof paint yellowing or product deformation, lengthen UV lamp tube's service life simultaneously, improve overall curing effect and equipment stability.
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Description

Technical Field

[0001] This utility model relates to the field of conformal coating curing technology, and in particular to a device for curing conformal coating. Background Technology

[0002] Conformal coating is a coating material used to protect electronic circuits from moisture, dust, and chemical contamination. It is widely used in industries such as electronics manufacturing, automotive electronics, aerospace, and LED lighting. To ensure that the conformal coating cures uniformly on the substrate surface and forms a stable protective layer, UV curing technology has gradually become the industry mainstream. Compared with traditional hot air curing and natural curing methods, UV curing has advantages such as fast curing speed, low energy consumption, and environmental friendliness with no solvent residue, thus its application in modern manufacturing is becoming increasingly widespread. With the popularization of high-precision electronic products, the rapid development of 5G communication equipment, and the rise of the new energy vehicle industry, the application demand for conformal coatings is constantly increasing, prompting UV curing equipment to develop towards a more efficient, intelligent, and environmentally friendly direction.

[0003] However, existing UV curing light boxes for conformal coatings still face numerous technical bottlenecks, directly impacting product quality and equipment performance. Firstly, the heat dissipation system design of traditional UV curing light boxes is flawed, with most airflow concentrated at the front, resulting in uneven heat distribution. In such cases, excessively high local temperatures not only affect the uniformity of conformal coating curing but also cause plastic products to deform due to high temperatures, impacting the assembly precision and lifespan of electronic components.

[0004] Therefore, a curing device for conformal coatings is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The main purpose of this invention is to provide a device for curing conformal coatings, which aims to solve the problems of uneven heat dissipation and excessively high local temperatures in existing UV curing lamp boxes.

[0006] To achieve the aforementioned objectives, this utility model proposes a device for curing conformal coatings, comprising:

[0007] The lampshade has an air vent.

[0008] Two glass covers are provided, both of which are located inside the lampshade;

[0009] A UV lamp tube, positioned between the two glass covers, is used to emit ultraviolet light;

[0010] The two glass covers are arc-shaped and together form a first airflow channel, which is connected to the air outlet to guide airflow.

[0011] Furthermore, air inlets are provided on both sides of the lampshade, and the cold air delivery system provides cold air to the inside of the lampshade through the air inlets to remove the conductive heat generated by the UV lamp tube.

[0012] Furthermore, it also includes a reflector, which is laid on the surface of the glass cover, and a second airflow channel is formed between the reflector and the lamp cover, and the second airflow channel is connected to the air outlet;

[0013] In this process, cold air reaches the second channel through the air inlet to remove the conductive heat generated by the UV lamp.

[0014] Furthermore, the reflector is serrated.

[0015] Furthermore, the reflector is provided with a first serration and a second serration, the first serration and the second serration are designed to be spaced apart, and the width of the first serration is greater than the width of the second serration.

[0016] Furthermore, the lower surface of the reflector is designed to be flush with the air inlet.

[0017] Furthermore, the reflector is made of aluminum.

[0018] Furthermore, the reflector is provided with a mounting groove for the UV lamp tube to be installed and positioned.

[0019] Beneficial effects:

[0020] This utility model discloses a device for curing conformal coatings, comprising a lampshade with an air outlet; two glass covers, each located inside the lampshade, forming an airflow channel that connects to the air outlet; and a UV lamp located between the two glass covers for emitting ultraviolet light. The two glass covers are arc-shaped and together form a first airflow channel that connects to the air outlet, guiding airflow. The arc-shaped design allows airflow to flow more evenly around the UV lamp, rather than concentrating on the front. This embodiment, through the double-glass cover structure, arc-shaped design, and optimized first airflow channel, achieves uniform airflow distribution, avoiding the uneven heat dissipation problem caused by concentrated airflow on the front in traditional UV curing lampshades. The airflow path design connecting the first airflow channel to the air outlet allows for efficient heat dissipation, improving heat dissipation uniformity, effectively reducing localized overheating in the curing area, preventing yellowing of the conformal coating or product deformation, extending the lifespan of the UV lamp, and improving overall curing effect and equipment stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a conformal coating curing device according to an embodiment of the present invention;

[0022] Figure 2 This is a front view of a conformal coating curing device according to an embodiment of the present invention;

[0023] Figure 3 This is a first view of a concealed lampshade for a conformal coating curing device according to an embodiment of the present invention;

[0024] Figure 4 This is a second view of a concealed lampshade for a conformal coating curing device according to an embodiment of the present invention;

[0025] Figure 5 This is a third view of a concealed lampshade for a conformal coating curing device according to an embodiment of this utility model;

[0026] Figure 6 This is a schematic diagram of the second airflow channel in a conformal coating curing device according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the second airflow channel in a conformal coating curing device according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the first airflow channel of a conformal coating curing device according to an embodiment of the present invention;

[0029] in:

[0030] 100. Lampshade; 110. Air inlet; 120. Air outlet;

[0031] 200. Glass cover;

[0032] 300. First airflow channel;

[0033] 400. Second airflow channel;

[0034] 500, reflector; 510, first serration; 520, second serration;

[0035] 600. Mounting slot;

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] Reference Figures 1 to 8 An embodiment of this utility model is used for a conformal coating curing device, comprising:

[0042] The lampshade is 100 and has an air outlet 120.

[0043] Two glass covers 200 are provided, both of which are located inside the lamp cover 100;

[0044] A UV lamp tube is disposed between the two glass covers 200 and is used to emit ultraviolet light.

[0045] Among them, the two glass covers 200 are arc-shaped and together form a first airflow channel 300, which is connected to the air outlet 120 to guide airflow;

[0046] The reflector 500 is provided with a mounting groove 600 for the installation and positioning of the UV lamp tube.

[0047] This solution for conformal coating curing devices mainly addresses the problems in existing technologies where airflow is concentrated on the front, leading to uneven heat dissipation, excessively high temperatures in some areas, causing conformal coatings to yellow or products to deform, difficulty in quickly dissipating heat from the back and inside the lamp cover, resulting in UV lamps being in a high-temperature environment that affects their lifespan, and unreasonable airflow paths that cause localized heat accumulation and reduce curing effectiveness.

[0048] Specifically, this embodiment includes a rectangular lampshade 100 with a cylindrical air outlet 120. The lampshade 100 forms a receiving cavity, and glass covers 200 are disposed on both sides of the receiving cavity. A first airflow channel 300 is formed between the two glass covers 200, which is designed to communicate with the air outlet 120. In this embodiment, the glass covers 200 are quartz glass covers 200 and have an arc-shaped design. The structure of the two quartz glass covers 200 with airflow channels and the first airflow channel 300 communicating with the air outlet 120 ensures that heat can be quickly removed, avoids local heat accumulation, and reduces local overheating. At the same time, the arc-shaped design optimizes the airflow path, making the air evenly distributed. The airflow is guided by the arc-shaped glass covers 200, so that the airflow can flow more evenly around the UV lamp tube, rather than being concentrated in front. This design not only improves the UV curing effect, but also enhances the stability of the equipment, extends the life of the UV lamp tube, and reduces the risk of yellowing of the conformal coating and product deformation.

[0049] Based on the above embodiment, the lamp cover 100 is provided with air inlets 110 on both sides, and the cold air delivery system provides cold air to the lamp cover 100 through the air inlets 110 to remove the conductive heat generated by the UV lamp tube.

[0050] In this embodiment, the lamp cover 100 has several air inlets 110 on both sides along its length. The main purpose of the air inlets 110 is to provide cold air to the lamp cover 100 through the cold air delivery system to achieve a cooling effect and improve heat dissipation efficiency. Through the air inlets on both sides and the cold air delivery system, the conductive heat generated by the UV lamp can be effectively removed, so that the temperature of the curing environment is maintained in a more stable range, avoiding the overheating problem of equipment caused by traditional high temperature.

[0051] Furthermore, it also includes a reflector 500, which is laid on the surface of the glass cover 200. A second airflow channel 400 is formed between the reflector 500 and the lamp cover 100, and the second airflow channel 400 is connected to the air outlet 120.

[0052] In this process, cold air reaches the second channel through the air inlet 110 to remove the conductive heat generated by the UV lamp.

[0053] The solution for the conformal coating curing device also includes a reflector 500, with a quartz glass cover 200 disposed on the inner surface of the reflector 500. A "second airflow channel 400" is formed between the reflector 500 and the lamp cover 100. In this embodiment, cold air flows along the airflow channel within the double glass cover 200, absorbing heat from around the UV lamp. The cold air enters the airflow channel between the reflector 500 and the lamp cover 100 to remove heat conduction from the surface of the reflector 500. The design of the second airflow channel 400 directly cools the reflector 500 with cold air, preventing the reflector 500 from overheating due to the heat from the UV lamp, thereby indirectly reducing the heat load inside the entire lamp cover 100. Because the temperature of the reflector 500 is better controlled, structural deformation caused by overheating is avoided. At the same time, the internal temperature of the lamp cover 100 is reduced, extending the life of the UV lamp, reducing light decay, and improving equipment stability.

[0054] The reflector 500 is serrated;

[0055] The reflector 500 includes a first serration 510 and a second serration 520, the first serration 510 and the second serration 520 are designed to be spaced apart, and the width of the first serration 510 is greater than the width of the second serration 520.

[0056] This embodiment, based on the aforementioned air-cooled structure of the double glass cover 200 combined with the reflector 500 and the second airflow channel 400, further optimizes the structure of the reflector 500 by adopting a serrated design, forming a structure on the surface of the reflector 500 with alternating first serrations 510 and second serrations 520. Through this design, the reflector 500 can not only effectively improve the reflection efficiency of UV light, but also further optimize the heat dissipation effect. The width of the first serration 510 is larger than that of the second serration 520, enabling the entire serrated structure to enhance the stability of airflow and heat dissipation capacity while reflecting UV light, thereby improving the overall system efficiency and reliability.

[0057] In terms of working principle, the serrated reflector 500 design allows UV light to be refracted and reflected at multiple angles, enabling a more uniform distribution of light energy in the curing area. This reduces the light energy concentration problem that may occur with traditional planar reflectors 500, thereby improving the curing uniformity of the conformal coating. Simultaneously, because the serrated structure guides airflow across the surface of the reflector 500, the spaced first serrations 510 and second serrations 520 create a subtle airflow disturbance effect, increasing the time that cool air remains on the reflector 500 surface. This more effectively removes conductive heat and lowers the overall temperature of the reflector 500. In this embodiment, compared to a traditional planar reflector 500, the serrated structure enhances the uniform reflection of UV light energy, reduces light energy waste, and effectively avoids the problem of poor local curing of the conformal coating due to uneven illumination. Secondly, the optimized design of the serrated structure, especially the spacing between the first serration 510 and the second serration 520, makes the airflow more stable, increases the time that cold air stays on the surface of the reflector 500, thereby enhancing heat dissipation capacity and further reducing the internal temperature of the lamp cover 100, preventing the equipment from affecting operational stability due to overheating. Furthermore, because the cold air can effectively remove heat from the surface of the reflector 500, the temperature of the entire curing area is more precisely controlled, effectively avoiding yellowing of the conformal coating due to excessive temperature and reducing deformation of plastic products caused by uneven temperature. Ultimately, this design can extend the lifespan of the UV lamp, reduce equipment energy consumption, and improve the reliability and efficiency of the entire UV curing system.

[0058] The lower surface of the reflector 500 is designed to be flush with the air inlet 110;

[0059] The reflector 500 is made of aluminum.

[0060] The core of this design lies in optimizing the flow path of the cold air, allowing the cold air entering the lamp cover 100 to directly enter the second airflow channel 400 and fully contact the surface of the reflector 500, thereby quickly removing the heat conducted to the reflector 500 due to the heat generated by the UV lamp tube. Since the lower surface of the reflector 500 is flush with the air inlet 110, the cold air can quickly diffuse to the entire surface of the reflector 500, forming a stable cooling airflow without localized air stagnation or reduced heat dissipation efficiency due to flow resistance or structural obstruction. Furthermore, the high thermal conductivity of aluminum allows the reflector 500 to more quickly transfer heat from localized areas to the entire surface, enabling the cold air to more efficiently remove heat when in contact with it, preventing the reflector 500 from overheating due to prolonged exposure, and avoiding any impact on the UV light reflection efficiency.

[0061] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A device for curing conformal coatings, characterized in that, include: The lampshade (100) is equipped with an air outlet (120); Two glass covers (200) are provided, both of which are located inside the lamp cover (100); UV lamp tubes are disposed between the two glass covers (200) and are used to emit ultraviolet light; Among them, the two glass covers (200) are arc-shaped and together form a first airflow channel (300), which is connected to the air outlet (120) to guide airflow; The lamp cover (100) is provided with air inlets (110) on both sides. The cold air delivery system provides cold air to the lamp cover (100) through the air inlets (110) to remove the conductive heat generated by the UV lamp tube.

2. The apparatus for curing conformal coatings according to claim 1, characterized in that, It also includes a reflector (500) laid on the surface of the glass cover (200), and a second airflow channel (400) is formed between the reflector (500) and the lamp cover (100), and the second airflow channel (400) is connected to the air outlet (120); In this process, cold air reaches the second airflow channel (400) through the air inlet (110) to remove the conductive heat generated by the UV lamp.

3. The apparatus for curing conformal coatings according to claim 2, characterized in that, The reflector (500) is serrated.

4. The apparatus for curing conformal coatings according to claim 3, characterized in that, The reflector (500) is provided with a first serration (510) and a second serration (520), the first serration (510) and the second serration (520) are designed to be spaced apart, and the width of the first serration (510) is greater than the width of the second serration (520).

5. The apparatus for curing conformal coatings according to claim 3, characterized in that, The lower surface of the reflector (500) is designed to be flush with the air inlet (110).

6. The apparatus for curing conformal coatings according to claim 3, characterized in that, The reflector (500) is made of aluminum.

7. The apparatus for curing conformal coatings according to claim 6, characterized in that, The reflector (500) is provided with a mounting groove (600) for the installation and positioning of the UV lamp tube.