Waterproof sealing device for LED (light-emitting diode) pin lamp

Abstract

The utility model relates to the technical field of lighting equipment, and discloses a waterproof sealing device for an LED (light-emitting diode) pin lamp, which comprises a lamp body shell, the lamp body shell is integrally formed by high-strength die-casting aluminum alloy and is of a cylindrical structure with one closed end and one open end, and the inner wall of the lamp body shell is subjected to anodic oxidation treatment to enhance corrosion resistance. A front cover is installed at an opening of the lamp body shell in a matched mode, an annular clamping groove is formed in the front cover, the inner diameter of the clamping groove is accurately matched with the outer diameter of the lamp body shell, and an annular sealing ring is embedded in the clamping groove. According to the waterproof sealing device for the LED pin lamp, through a double sealing structure of the annular sealing ring and the conical sealing ring and a mechanical fastening mode of the metal pressing ring and the threads, the sealing ring generates controllable elastic deformation, a gap between the lamp body shell and the front cover is effectively filled, the waterproof grade can reach IP68, and the waterproof sealing device can normally work even if the waterproof sealing device is soaked in water for a long time; and the reliability of the lamp in a severe environment is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, specifically to a waterproof sealing device for LED floor lamps. Background Technology

[0002] LED ground lights are commonly used lighting and decorative equipment in outdoor places such as gardens, squares, and courtyards. They are exposed to the natural environment for a long time and need to withstand harsh conditions such as rain, humidity, and water accumulation.

[0003] The existing technology authorization announcement number CN212510672U patent document provides an LED ground lamp. The utility model has a tempered glass outer sleeve with a silicone ring, and a silicone ring is set between the lamp holder and the back cover. Compared with the prior art, the structure design is reasonable, the sealing and waterproof performance is strong, the light output effect is good, and it can rotate in both horizontal and vertical directions at the same time to achieve rotational illumination at various angles, which has a large expansion space in the application.

[0004] However, existing LED ground lights mostly rely on traditional solutions such as single-layer sealing rings or silicone adhesive filling for waterproofing, which have significant defects in waterproofing performance. During long-term outdoor use, these simple sealing methods are easily affected by multiple factors such as ultraviolet rays, temperature differences, and mechanical vibration, causing the sealing rings to age, harden, or deform rapidly. Once the sealing structure fails, rainwater, dew, and ground seepage water can easily seep into the lamp body, causing LED light source short circuits, driver power supply corrosion, and other malfunctions. In severe cases, it can even cause the lamp to be scrapped, making it difficult to meet the modern landscape lighting requirements for lamp durability and economy. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a waterproof sealing device for LED floor socket lights, so as to solve the problem mentioned in the background art that the single-layer structure of existing LED floor socket lights results in poor waterproof performance.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterproof sealing device for an LED floor lamp, comprising a lamp body shell, wherein the lamp body shell is integrally formed from high-strength die-cast aluminum alloy and has a cylindrical structure with one end closed and the other end open; the inner wall of the lamp body shell is anodized to enhance corrosion resistance; a front cover is adapted to be installed at the opening of the lamp body shell; and an annular snap-fit ​​groove is provided inside the front cover.

[0009] The inner diameter of the snap-fit ​​groove is precisely matched with the outer diameter of the lamp body shell. An annular sealing ring is embedded in the snap-fit ​​groove. The annular sealing ring is made of weather-resistant EPDM rubber and is fixed by interference fit. A conical sealing ring is set on the inner wall of the lamp body shell near the opening end, with the large end of the conical sealing ring facing the opening direction.

[0010] As a further improvement to the above solution, the outer side of the lamp housing is integrally formed with a ground plug bracket, and the center of the front cover is fitted with a light-transmitting panel. The light-transmitting panel is made of high-transmittance tempered glass and the surface is treated with a nano-coating.

[0011] As a further improvement to the above solution, a metal pressure ring is provided inside the front cover on the inner side of the snap-fit ​​groove, and the outer surface of the pressure ring is machined with a standard external thread.

[0012] As a further improvement to the above solution, the inner wall of the lamp housing is provided with an internal thread, which is compatible with the external thread.

[0013] As a further improvement to the above solution, a substrate is provided inside the lamp body shell, and LED beads are regularly arranged on the substrate. A thermally conductive silicone pad is uniformly filled between the substrate and the lamp body shell.

[0014] As a further improvement to the above solution, a drainage hole is provided at the bottom of the lamp body shell, and a waterproof and breathable membrane is provided inside the drainage hole. The waterproof and breathable membrane is made of expanded polytetrafluoroethylene material.

[0015] As a further improvement to the above solution, the outer surface of the lamp housing is connected to a grounding terminal via a standard M6 threaded interface. The grounding terminal is made of copper and tin-plated.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The waterproof sealing device of this LED floor socket light uses a double sealing structure of annular sealing ring and conical sealing ring, combined with the mechanical fastening method of metal pressure ring and thread, so that the sealing ring can produce controllable elastic deformation, effectively filling the gap between the lamp body shell and the front cover. The waterproof rating can reach IP68, and it can work normally even when immersed in water for a long time, significantly improving the reliability of the lamp in harsh environments.

[0018] 2. The waterproof sealing device for this LED floor lamp fills the space between the substrate and the lamp housing with a high thermal conductivity silicone pad and sets a waterproof and breathable membrane at the bottom. This not only achieves efficient heat conduction of the LED beads, but also effectively prevents condensation by balancing the internal and external air pressure, thus extending the life of the LED light source. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the lamp body shell of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the front cover of this utility model;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the pressure ring of this utility model.

[0023] In the diagram: 1. Lamp housing; 2. Front cover; 3. Snap-fit ​​groove; 4. Annular sealing ring; 5. Conical sealing ring; 6. Grounding bracket; 7. Transparent panel; 8. Pressure ring; 9. External thread; 10. Internal thread; 11. Substrate; 12. LED beads; 13. Thermally conductive silicone pad; 14. Drain hole; 15. Waterproof and breathable membrane; 16. Grounding terminal. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a waterproof sealing device for LED floor lamps, including a lamp body shell 1. The lamp body shell 1 is integrally formed from high-strength die-cast aluminum alloy and has a cylindrical structure with one end closed and the other end open. The inner wall of the lamp body shell 1 is anodized to enhance corrosion resistance. A front cover 2 is adapted to be installed at the opening of the lamp body shell 1. The front cover 2 has an annular snap-fit ​​groove 3 inside.

[0026] The inner diameter of the snap-fit ​​groove 3 is precisely matched with the outer diameter of the lamp body shell 1. The snap-fit ​​groove 3 is inlaid with an annular sealing ring 4. The annular sealing ring 4 is made of weather-resistant EPDM rubber and is fixed by interference fit. A conical sealing ring 5 is set on the inner wall of the lamp body shell 1 near the opening end, with the large end of the conical sealing ring 5 facing the opening direction.

[0027] The annular sealing ring 4 is embedded into the annular snap-fit ​​groove 3 of the front cover 2. Since the annular sealing ring 4 is fixed by an interference fit, it can fit tightly with the snap-fit ​​groove 3. The front cover 2 is aligned with the opening of the lamp housing 1, so that the outer diameter of the lamp housing 1 is precisely matched with the annular snap-fit ​​groove 3. At this time, the annular sealing ring 4 is squeezed between the two, forming the first waterproof barrier. At the same time, the large end of the conical sealing ring 5 near the opening end of the inner wall of the lamp housing 1 contacts the inner side of the front cover 2, providing initial pressure for sealing. As the pressure ring 8 is continuously tightened, it applies axial pressure to the front cover 2, which further compresses the annular sealing ring 4, causing it to undergo elastic deformation and fill the tiny gap between the lamp housing 1 and the front cover 2. At the same time, the conical sealing ring 5 also undergoes greater elastic deformation due to the compression of the front cover 2. Utilizing the characteristics of the conical structure, a tighter seal is formed at the connection between the lamp housing 1 and the front cover 2. The cooperation of the double sealing rings significantly improves the waterproof performance, enabling the device to achieve a waterproof rating of IP68.

[0028] The lamp housing 1 has an integrally formed grounding bracket 6 on its outer side. The front cover 2 has a light-transmitting panel 7 embedded in the middle. The light-transmitting panel 7 is made of high-transmittance tempered glass with a nano-coating treatment on its surface. The front cover 2 has a metal pressure ring 8 inside the snap-fit ​​groove 3. The outer surface of the pressure ring 8 is machined with a standard external thread 9. The inner wall of the lamp housing 1 has an internal thread 10 that matches the external thread 9. The lamp housing 1 has a substrate 11 inside. LED beads 12 are regularly arranged on the substrate 11. The space between the substrate 11 and the lamp housing 1 is filled with a thermally conductive silicone pad 13. The bottom of the lamp housing 1 has a drainage hole 14. The drainage hole 14 has a waterproof and breathable membrane 15 inside. The waterproof and breathable membrane 15 is made of expanded polytetrafluoroethylene. The outer surface of the lamp housing 1 is connected to a grounding terminal 16 through a standard M6 threaded interface. The grounding terminal 16 is made of copper and tin-plated.

[0029] When installing the waterproof sealing device for this LED ground light, the substrate 11 is first fixed inside the lamp housing 1 with countersunk screws. The LED beads 12 arranged regularly on the substrate 11 are electrically connected to the driving circuit (not shown in the figure). At the same time, a thermally conductive silicone pad 13 is evenly filled between the substrate 11 and the lamp housing 1 to ensure that the heat generated by the LED beads 12 can be quickly conducted to the lamp housing 1 for heat dissipation. The metal pressure ring 8 is screwed into the internal thread 10 on the inner wall of the lamp housing 1. The standard external thread 9 on the outer surface of the metal pressure ring 8 is tightly engaged with the internal thread 10. When the device is installed on the outdoor ground, the lamp is firmly inserted into the ground through the ground socket 6 integrally formed on the outer side of the lamp housing 1, using its bottom tooth structure. The light-transmitting panel 7 embedded in the middle of the front cover 2 is made of high light transmittance tempered glass with a nano-coating treatment on the surface, which ensures efficient light transmission while being scratch-resistant. The wear-resistant and UV-resistant properties protect the internal LED beads 12. During operation, the heat generated by the LED beads 12 is quickly transferred to the lamp housing 1 through the thermally conductive silicone pad 13. The lamp housing 1, made of high-strength die-cast aluminum alloy, has good heat dissipation performance, dissipating heat to the surrounding environment. The waterproof and breathable membrane 15 inside the drainage hole 14 at the bottom of the lamp housing 1 is made of expanded polytetrafluoroethylene material. Its small pores allow air to flow freely, balancing the air pressure inside the lamp housing and the outside, preventing condensation due to temperature changes, and effectively blocking liquid water from entering. In addition, the grounding terminal 16, made of copper and tin-plated, is connected to the outer surface of the lamp housing 1 through a standard M6 threaded interface, reliably grounding the lamp. When the lamp experiences leakage or other abnormalities, the current can be conducted to the ground through the grounding terminal 16, ensuring the safety of personnel and equipment.

[0030] Working principle: When installing the waterproof sealing device for this LED floor socket light, the substrate 11 is first fixed inside the lamp housing 1 with countersunk screws. The LED beads 12 arranged regularly on the substrate 11 are electrically connected to the driving circuit (not shown in the figure). At the same time, a thermally conductive silicone pad 13 is evenly filled between the substrate 11 and the lamp housing 1 to ensure that the heat generated by the LED beads 12 can be quickly conducted to the lamp housing 1 for heat dissipation. Then, the sealing assembly is performed by embedding the annular sealing ring 4 into the annular snap-fit ​​groove 3 of the front cover 2. Since the annular sealing ring 4 is fixed by an interference fit, it can fit tightly with the snap-fit ​​groove 3. The front cover 2 is aligned with the opening of the lamp housing 1, so that the outer diameter of the lamp housing 1 is aligned with the annular groove 3. The shaped locking groove 3 is precisely matched, and the annular sealing ring 4 is squeezed between the two, forming the first waterproof barrier. At the same time, the large end of the conical sealing ring 5 near the opening end of the inner wall of the lamp body shell 1 contacts the inner side of the front cover 2, providing initial pressure for sealing. Subsequently, the metal pressure ring 8 is screwed into the internal thread 10 of the inner wall of the lamp body shell 1. The standard external thread 9 on the outer surface of the metal pressure ring 8 tightly meshes with the internal thread 10. As the pressure ring 8 is continuously tightened, it applies axial pressure to the front cover 2, causing the annular sealing ring 4 to be further squeezed, causing it to undergo elastic deformation and fill the tiny gap between the lamp body shell 1 and the front cover 2. At the same time, the conical sealing ring 5 also undergoes a greater degree of elastic deformation due to the compression of the front cover 2. Utilizing the characteristics of the conical structure, a tighter seal is formed at the connection between the lamp housing 1 and the front cover 2. The combination of double sealing rings significantly improves waterproof performance, enabling the device to achieve a waterproof rating of IP68. When the device is installed on the outdoor ground, the lamp is securely inserted into the ground through the integrated ground insert 6 on the outer side of the lamp housing 1, utilizing its bottom toothed structure. The light-transmitting panel 7 embedded in the center of the front cover 2 is made of high-transmittance tempered glass with a nano-coating treatment on the surface. While ensuring efficient light transmission, it also has scratch-resistant, wear-resistant, and UV-resistant properties, protecting the internal LED beads 12. During the operation of the device, the heat generated by the LED beads 12 is quickly transferred to the heat-conducting silicone pad 13. The lamp housing 1, made of high-strength die-cast aluminum alloy, has excellent heat dissipation performance, dissipating heat to the surrounding environment. The waterproof and breathable membrane 15 inside the drainage hole 14 at the bottom of the lamp housing 1 is made of expanded polytetrafluoroethylene material. Its tiny pores allow air to flow freely, balancing the air pressure inside the lamp housing and the outside, preventing condensation due to temperature changes, and effectively blocking liquid water from entering. In addition, the grounding terminal 16, made of copper and tin-plated, is connected to the outer surface of the lamp housing 1 through a standard M6 threaded interface, reliably grounding the lamp. When the lamp experiences leakage or other abnormalities, the current can be conducted to the ground through the grounding terminal 16, ensuring the safety of personnel and equipment.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A waterproof sealing device for an LED floor lamp, comprising a lamp housing (1), characterized in that: The lamp body shell (1) is integrally formed from high-strength die-cast aluminum alloy and has a cylindrical structure with one end closed and the other end open. The inner wall of the lamp body shell (1) is anodized to enhance corrosion resistance. The opening of the lamp body shell (1) is fitted with a front cover (2). The front cover (2) has an annular snap-fit ​​groove (3) inside. The inner diameter of the snap-fit ​​groove (3) is precisely matched with the outer diameter of the lamp body shell (1). The snap-fit ​​groove (3) is inlaid with an annular sealing ring (4). The annular sealing ring (4) is made of weather-resistant EPDM rubber and is fixed by interference fit. A conical sealing ring (5) is set on the inner wall of the lamp body shell (1) near the opening end. The large end of the conical sealing ring (5) faces the opening direction.

2. The waterproof sealing device for an LED floor lamp according to claim 1, characterized in that: The outer side of the lamp housing (1) is integrally formed with a ground plug bracket (6), and the front cover (2) is fitted with a light-transmitting panel (7) in the middle. The light-transmitting panel (7) is made of high light transmittance tempered glass and the surface is treated with nano-coating.

3. The waterproof sealing device for an LED floor lamp according to claim 1, characterized in that: The front cover (2) has a metal pressure ring (8) located inside the snap-fit ​​groove (3), and the outer surface of the pressure ring (8) is machined with a standard external thread (9).

4. The waterproof sealing device for an LED floor lamp according to claim 1, characterized in that: The inner wall of the lamp housing (1) is provided with an internal thread (10), which is adapted to the external thread (9).

5. The waterproof sealing device for an LED floor lamp according to claim 1, characterized in that: The lamp body shell (1) has a substrate (11) inside, and LED beads (12) are regularly arranged on the substrate (11). A thermally conductive silicone pad (13) is uniformly filled between the substrate (11) and the lamp body shell (1).

6. The waterproof sealing device for an LED floor lamp according to claim 1, characterized in that: The bottom of the lamp housing (1) is provided with a drainage hole (14), and a waterproof and breathable membrane (15) is provided inside the drainage hole (14). The waterproof and breathable membrane (15) is made of expanded polytetrafluoroethylene material.

7. The waterproof sealing device for an LED floor lamp according to claim 1, characterized in that: The outer surface of the lamp housing (1) is connected to the grounding terminal (16) through a standard M6 threaded interface. The grounding terminal (16) is made of copper and tin-plated.

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