An LED power supply box for LED lamp manufacturing
By using an aluminum main housing and a modular cover design, combined with potting compound and sealing gaskets, the heat dissipation problem caused by the overall potting and sealing of the LED power box is solved, achieving a balance between efficient sealing and heat dissipation.
Patent Information
- Application Number
- CN202521809995.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-08-25
AI Technical Summary
Existing LED power supply boxes use an overall potting and sealing method, resulting in poor heat dissipation.
The structure consists of an aluminum main housing, a first combined cover plate, and a second combined cover plate. The space between the cover plates is filled with potting compound, and sealing gaskets and sealing washers are installed at the connection between the cover plates and the aluminum main housing. A U-shaped heat sink is installed on the outside of the aluminum main housing to ensure that the circuit board is not covered by the potting compound.
It achieves efficient sealing, avoiding the impact of potting compound on circuit board heat dissipation, while improving heat dissipation through aluminum main shell and U-shaped heat sink.
Smart Images

Figure CN224947842U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of LED power supply box technology, specifically an LED power supply box for LED lamp production. Background Technology
[0002] LED power supply boxes are used to assemble LED power supplies. Especially for LED power supply boxes used outdoors, it is necessary to ensure their airtightness to prevent dust and moisture from entering and affecting the lifespan of the internal power board. The existing method is to fill the inside of the LED power supply box with potting compound to seal the entire circuit board. Although this method improves the sealing performance, it also affects the heat dissipation of the circuit board. Therefore, this application proposes an LED power supply box for LED lamp production. Summary of the Invention
[0003] In order to overcome the shortcomings of the prior art, this utility model provides an LED power supply box for LED lamp production, which effectively solves the problem that the heat dissipation effect is affected by the overall potting and sealing method of the existing LED power supply box.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an LED power supply box for LED lamp production, comprising a power supply box body, wherein the power supply box body is composed of an aluminum main shell, a first combined cover plate and a second combined cover plate, the first combined cover plate and the second combined cover plate being bolted to both ends of the aluminum main shell, the first combined cover plate being composed of a cover plate body one, an inner lining plate one and several connecting supports one, the inner lining plate one being fixedly connected to the side of the cover plate body one near the aluminum main shell through the connecting supports one, the second combined cover plate being composed of a cover plate body two, an inner lining plate two and several connecting supports two, the inner lining plate two being fixedly connected to the side of the cover plate body two near the aluminum main shell through the connecting supports two, the inner lining plate one and the inner lining plate two being respectively embedded in both ends of the interior of the aluminum main shell, and potting compound being filled between the cover plate body one and the inner lining plate one, and between the cover plate body two and the inner lining plate two.
[0005] Preferably, both the first and second cover plates are provided with glue injection holes.
[0006] Preferably, both the cover plate body one and the cover plate body two are provided with sealing gaskets on the side near the aluminum main shell, and both the inner liner plate one and the inner liner plate two are provided with sealing gaskets at their edges.
[0007] Preferably, cable grooves are provided in the middle of the cover plate body one, cover plate body two, inner liner plate one and inner liner plate two, and rubber sealing rings are provided inside the cable grooves.
[0008] Preferably, bolt mounting holes are provided at the four corners of both the cover plate body one and the cover plate body two, and threaded holes matching the bolt mounting holes are provided at the four corners of both ends of the aluminum main housing.
[0009] Preferably, two circuit board mounting brackets are fixedly provided at both ends of one side of the aluminum main housing, and bolt mounting brackets are fixedly provided on both sides of the aluminum main housing.
[0010] Preferably, a U-shaped heat sink is welded to the outer surface of the aluminum main housing.
[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) In operation, by setting a first combined cover plate consisting of a cover plate body 1, an inner liner plate 1 and several connecting supports 1, and setting a second combined cover plate consisting of a cover plate body 2, an inner liner plate 2 and several connecting supports 2, and filling the space between the cover plate body 1 and the inner liner plate 1 and between the cover plate body 2 and the inner liner plate 2 with potting compound, the two ends of the aluminum main shell can be effectively sealed. The potting compound will not cover the circuit board, so it will not affect the heat dissipation of the circuit board. The heat dissipation effect can be improved through the aluminum main shell. (2) By setting up injection holes, potting compound can be injected. By setting up sealing gaskets and sealing washers, the sealing performance at both ends of the aluminum main shell can be further improved. By setting up U-shaped heat sinks, the heat dissipation effect of the aluminum main shell can be further improved. Attached Figure Description
[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0013] In the attached diagram: Figure 1 This is a schematic diagram of the LED power supply box used in the production of LED complete lamps according to this utility model; Figure 2 This is an exploded view of the LED power supply box for LED lamp production according to this utility model; Figure 3 This is a schematic diagram of the aluminum main shell structure of this utility model; Figure 4 This is a schematic diagram of the first and second combined cover plates of this utility model. In the diagram: 1. Power supply box body; 2. Aluminum main shell; 3. First combined cover plate; 4. Second combined cover plate; 5. Cover plate body one; 6. Inner liner plate one; 7. Connecting support one; 8. Cover plate body two; 9. Inner liner plate two; 10. Connecting support two; 11. Glue injection hole; 12. Sealing gasket; 13. Sealing washer; 14. Cable tray; 15. Rubber sealing ring; 16. Bolt mounting hole; 17. Threaded hole; 18. Circuit board mounting support; 19. Bolt mounting seat; 20. U-shaped heat sink. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0015] Depend on Figures 1 to 4 This utility model discloses an LED power supply box for LED lamp production, comprising a power supply box body 1. The power supply box body 1 is composed of an aluminum main shell 2, a first combined cover plate 3, and a second combined cover plate 4. The first combined cover plate 3 and the second combined cover plate 4 are respectively bolted to both ends of the aluminum main shell 2. The first combined cover plate 3 is composed of a cover plate body 5, an inner lining plate 6, and several connecting supports 7. The inner lining plate 6 is fixedly connected to the side of the cover plate body 5 near the aluminum main shell 2 through the connecting supports 7. The second combined cover plate 4 is composed of a cover plate body 8, an inner lining plate 9, and several connecting supports 10. The inner lining plate 9 is fixedly connected to the side of the cover plate body 8 near the aluminum main shell 2 through the connecting supports 10. The inner lining plate 6 and the inner lining plate 9 are respectively embedded in both ends inside the aluminum main shell 2. The space between the cover plate body 5 and the inner lining plate 6, and the space between the cover plate body 8 and the inner lining plate 9 are filled with potting compound. Before assembly, the circuit board is pre-connected with the cables, and then the circuit board is installed inside the aluminum main housing 2. The cables at both ends pass through the first combined cover plate 3 and the second combined cover plate 4 respectively. Then, the first combined cover plate 3 and the second combined cover plate 4 are assembled so that the inner liner plate 6 and the inner liner plate 9 are respectively embedded into the two ends inside the aluminum main housing 2. Then, the cover plate body 5 and the cover plate body 8 are connected to the aluminum main housing 2 with bolts. At this time, a sealed cavity is formed between the cover plate body 5 and the inner liner plate 6, and between the cover plate body 8 and the inner liner plate 9. Then, potting compound is injected into the sealed cavity to achieve sealing. The circuit board inside the aluminum main housing 2 will not come into contact with the potting compound, so it will not affect the heat dissipation of the circuit board. The heat dissipation effect can be improved by the aluminum main housing 2. Both the cover plate body 15 and the cover plate body 28 are provided with glue injection holes 11, which can be used to inject potting glue. Both the cover plate body 1 5 and the cover plate body 2 8 are provided with sealing gaskets 12 on the side near the aluminum main housing 2, which can improve the sealing performance of the connection between the cover plate body 1 5 and the cover plate body 2 8 and the aluminum main housing 2. Both the inner lining plate 1 6 and the inner lining plate 2 9 are provided with sealing gaskets 13 at their edges, which can improve the sealing performance of the connection between the inner lining plate 1 6 and the inner lining plate 2 9 and the inner side wall of the aluminum main housing 2. Both the cover plate body 1 5, the cover plate body 2 8, the inner lining plate 1 6 and the inner lining plate 2 9 are provided with cable grooves 14 in the middle. The inside of the cable grooves 14 is provided with rubber sealing rings 15, which can seal the cable and the cable groove 14 installation position. Bolt mounting holes 16 are provided at the four corners of both the cover plate body 1 5 and the cover plate body 2 8. Threaded holes 17 matching the bolt mounting holes 16 are provided at the four corners of both ends of the aluminum main housing 2, allowing for connection by bolts. Two circuit board mounting supports 18 are fixedly installed at both ends of one side of the aluminum main housing 2, enabling the installation of circuit boards. Bolt mounting seats 19 are fixedly installed on both sides of the aluminum main housing 2. U-shaped heat sinks 20 are welded to the outer surface of the aluminum main housing 2, further improving the heat dissipation effect of the aluminum main housing 2.
[0016] In operation, a first combined cover plate consisting of a cover plate body 1, an inner liner plate 1, and several connecting supports 1, and a second combined cover plate consisting of a cover plate body 2, an inner liner plate 2, and several connecting supports 2 are installed. Encapsulating adhesive is filled between the cover plate body 1 and the inner liner plate 1, and between the cover plate body 2 and the inner liner plate 2. This achieves efficient sealing of both ends of the aluminum main housing. The encapsulating adhesive does not cover the circuit board, thus not affecting the heat dissipation of the circuit board. The heat dissipation effect is improved through the aluminum main housing. An injection hole allows for the injection of encapsulating adhesive. Sealing gaskets and sealing washers further improve the sealing performance at both ends of the aluminum main housing. U-shaped heat sinks further enhance the heat dissipation effect of the aluminum main housing.
Claims
1. An LED power supply box for LED whole lamp production, comprising a power supply box body (1), characterized in that: The power box body (1) is composed of an aluminum main shell (2), a first combined cover plate (3), and a second combined cover plate (4). The first combined cover plate (3) and the second combined cover plate (4) are respectively bolted to both ends of the aluminum main shell (2). The first combined cover plate (3) is composed of a cover plate body (5), an inner lining plate (6), and several connecting supports (7). The inner lining plate (6) is fixedly connected to the cover plate body (5) near the aluminum main shell (2) through the connecting supports (7). On the side, the second combined cover plate (4) is composed of cover plate body two (8), inner liner plate two (9) and several connecting supports two (10). The inner liner plate two (9) is fixedly connected to the side of the cover plate body two (8) near the aluminum main shell (2) through the connecting supports two (10). The inner liner plate one (6) and the inner liner plate two (9) are respectively embedded in the two ends of the aluminum main shell (2). The space between the cover plate body one (5) and the inner liner plate one (6) and the space between the cover plate body two (8) and the inner liner plate two (9) are filled with potting compound.
2. The LED power supply box for LED whole lamp production according to claim 1, characterized in that: Both the cover plate body one (5) and the cover plate body two (8) are provided with glue injection holes (11).
3. The LED power box for LED whole lamp production according to claim 1, characterized in that: Both the cover plate body one (5) and the cover plate body two (8) are provided with sealing gaskets (12) on the side near the aluminum main shell (2), and both the inner liner plate one (6) and the inner liner plate two (9) are provided with sealing gaskets (13).
4. The LED power supply box for LED whole lamp production according to claim 1, characterized in that: Cable grooves (14) are provided in the middle of the cover plate body 1 (5), cover plate body 2 (8), inner liner plate 1 (6) and inner liner plate 2 (9), and rubber sealing rings (15) are provided inside the cable grooves (14).
5. The LED power supply box for LED lamp production according to claim 1, characterized in that: Bolt mounting holes (16) are provided at the four corners of the cover plate body one (5) and cover plate body two (8), and threaded holes (17) matching the bolt mounting holes (16) are provided at the four corners of both ends of the aluminum main shell (2).
6. The LED power supply box for LED lamp production according to claim 1, characterized in that: Two circuit board mounting brackets (18) are fixedly installed at both ends of one side of the aluminum main housing (2), and bolt mounting brackets (19) are fixedly installed on both sides of the aluminum main housing (2).
7. The LED power supply box for LED lamp production according to claim 1, characterized in that: The outer surface of the aluminum main housing (2) is welded with U-shaped heat sinks (20).
