Waterproof bulb lamp with simple structure

Abstract

A simple structure waterproof bulb lamp, including lamp shell, the lamp shell includes bottom wall and the side wall of surrounding bottom wall, LED light source, lens and reflector cup are successively installed in the lamp shell from bottom wall to light outlet, the bottom wall is provided with wire hole, and the inboard of side wall is provided with step, the wire hole is provided with power line sealing assembly, the power line passes through the sealing assembly and is electrically connected with the LED light source, the LED light source is installed on the bottom wall, the lens rests on the step, the reflector cup is fixed on the step by screw, the lens is clamped between reflector cup and step, and sealing pad is arranged between reflector cup and lens and between lens and step.The utility model only needs to adopt screw and fix reflector cup on step, utilizes reflector cup and presses lens and sealing ring, can seal the interface of step, lens and reflector cup three, and the lamp shell structure is simple and has high integrity, simple structure, and the assembly of spare part is convenient, and the sealing effect is good.

Description

Technical Field

[0001] This utility model relates to LED lighting fixtures, specifically disclosing a waterproof downlight with a simple structure. Background Technology

[0002] Downlights consist of a barrel-shaped housing, which includes a bottom wall, side walls, and a light outlet. From the bottom wall to the light outlet, an LED light source, lens, and reflector are installed sequentially. A wiring hole is also provided on the bottom wall. Previously, downlights were mainly used in living rooms or hallways, generally not requiring waterproofing. However, as their application expands to bathrooms, eaves, and other areas, waterproofing requirements have become increasingly important. But due to the numerous components of downlights, it is difficult to simultaneously ensure reliable sealing and a simple structure; therefore, it is necessary to explore this aspect. Utility Model Content

[0003] Therefore, it is necessary to provide a waterproof downlight that is waterproof, reliably sealed, and has a simple structure, addressing the existing technical problems.

[0004] To address the problems of existing technologies, this utility model discloses a waterproof downlight with a simple structure, including a lamp housing. The lamp housing includes a bottom wall and side walls surrounding the bottom wall. An LED light source, a lens, and a reflector are sequentially installed inside the lamp housing from the bottom wall to the light outlet. A wire outlet hole is provided on the bottom wall, and a step is provided on the inner side of its side wall. A power cord sealing assembly is provided in the wire outlet hole. The power cord passes through the sealing assembly and is electrically connected to the LED light source. The LED light source is mounted on the bottom wall. The lens rests on the step. The reflector is fixed to the step with screws. The lens is clamped between the reflector and the step. Sealing gaskets are provided between the reflector and the lens and between the lens and the step.

[0005] The beneficial effects of this utility model are as follows: because a step is set on the inner side of the side wall, a sealing ring, a lens and a reflector are installed on the step, and a wire outlet hole is set at the bottom of the lamp housing, and a sealing component is set on the wire outlet hole to seal the power line, it is only necessary to use screws to fix the reflector on the step, and use the reflector to press the lens and the sealing ring to seal the interface of the step, the lens and the reflector. The lamp housing structure is simple and has strong integrity, the structure is simple, the parts are easy to assemble, and the sealing effect is good.

[0006] As a further improvement of this utility model; the outlet hole is provided with an internal thread, and the power cord sealing assembly includes a sleeve with external threads at both ends and a retaining ring in the middle of the sleeve. The lower end of the sleeve is installed in the outlet hole through the external threads, and the retaining ring abuts against the outer side of the bottom wall of the lamp housing. An O-ring is provided between the retaining ring and the bottom wall of the lamp housing. The upper end of the sleeve has a trumpet-shaped opening, and a conical sealing ring matching its shape is installed in the opening. A cap nut is installed at the upper end of the sleeve, and an opening is provided in the cap of the cap nut. The power cord passes through the opening of the cap nut, the conical sealing ring, and the sleeve in sequence to connect to the LED light source. The cap nut presses the conical sealing ring tightly into the opening at the upper end of the sleeve, sealing the power cord and the opening. A sealing groove is provided on the lower side of the retaining ring, and the O-ring is fixed in the sealing groove. An annular pressing edge is provided around the lens, and a retaining groove is provided on the inner side of the sealing gasket. The retaining groove is engaged with the pressing edge, and the sealing gasket covers the back, front, and side of the pressing edge. The LED light source includes a lamp board, LED modules mounted on the lamp board, and a bracket for fixing the lamp board. The bracket has a light-emitting hole in the center and a wire groove on its back. The bracket is fixed to the bottom wall of the lamp housing with screws. The LED modules are located in the light-emitting area, and the edge of the light-emitting hole presses against the lamp board of the LED light source. The power cable is connected to the lamp board through the wire groove. The inner shape of the side wall matches the shape of the lens, allowing for centering and limiting the lens. Attached Figure Description

[0007] Figure 1 This is one of the assembly diagrams of this utility model.

[0008] Figure 2 This is the second assembly diagram of this utility model.

[0009] Figure 3 This is a half-sectional structural diagram of the lamp housing of this utility model.

[0010] Figure 4 This is a schematic diagram of the full cross-section of the present invention.

[0011] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0012] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0013] Figure 7 This is a schematic diagram of the support structure. Detailed Implementation

[0014] To further understand the features, technical means, specific purposes, and functions of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. The descriptions of the positions of components in this utility model (including but not limited to: upper, lower, inner, outer, left, right, etc.) are for reference only when referring to the positions of the components as shown in the accompanying drawings. Their purpose is to facilitate understanding of the relative relationships between the components and does not represent an absolute limitation on the scope of protection of this utility model. Those skilled in the art will understand that when the view direction changes, the description of the relative positions may change, but the essential relative positional relationships between the components do not change.

[0015] refer to Figure 1 , Figure 2 and Figure 4 A simple waterproof downlight includes a barrel-shaped lamp housing 1. The lamp housing 1 includes a bottom wall 11, a side wall 12 surrounding the bottom wall 11, and a light outlet 10 opposite to the bottom wall. An LED light source 2, a lens 3, and a reflector 4 are installed sequentially inside the lamp housing from the bottom wall 11 to the light outlet 10.

[0016] refer to Figure 3 The lamp housing 1 is integrally formed using a die-casting process. Its bottom wall 11 has a wire outlet hole 13, and its inner side wall has a step 14. Three mounting holes 15, penetrating the side wall 12, are evenly distributed on the step 14. Because the step 14 is located inside the side wall 13 and is integral with it, the step 14 has high strength, resulting in a strong integral lamp housing structure and a simple die-casting mold.

[0017] refer to Figures 3 to 5 A power cord sealing assembly 5 is installed inside the outlet hole 13. The power cord sealing assembly 5 includes a sleeve 51 with external threads at both ends and a retaining ring 511 in the middle. A sealing groove 512 is provided on the lower side of the retaining ring 511, and an O-ring 52 is installed in the sealing groove 512. The lower end of the sleeve 51 is installed in the outlet hole 13 through the threads, and the retaining ring 511 presses the O-ring 52 against the outside of the outlet hole 13. The upper end of the sleeve 51 has a trumpet-shaped opening 513, and a conical sealing ring 53 matching its shape is installed in the opening 513. A cap nut 54 is also installed on the upper end of the sleeve 52, and an opening 541 is provided in the cap of the cap nut 54. The power cord 6 passes through the opening 541 of the cap nut 54, the conical sealing ring 53 and the sleeve 51 in sequence to enter the lamp housing 1. The cap nut 54 presses the conical sealing ring 53 into the opening 513 at the upper end of the sleeve, sealing the power cord 6 and the opening 513. Since the pressure of the conical sealing ring 53 increases with the screwing depth of the cap nut 54, its inner diameter can be designed to be larger, which facilitates the installation of the power cord 6 and has the advantages of convenient installation and reliable sealing.

[0018] refer to Figure 2 and Figure 7 The LED light source 2 includes a lamp board 21, an LED module 22 mounted on the lamp board 21, and a bracket 23 for fixing the lamp board 21. A light-emitting hole 231 is provided in the center of the bracket 23, and a wire groove 232 is provided on the back of the bracket 23. The bracket 23 is fixed to the bottom wall 11 of the lamp housing with screws. The LED module 22 of the LED light source is located in the light-emitting hole 231, and the edge of the light-emitting hole 231 presses against the lamp board 21 of the LED light source. The power cord 6 is connected to the lamp board 21 through the wire groove 232. Because the step 14 is located inside the side wall 12 and is integral with the side wall 12, the bottom wall 11 of the lamp housing has a large area, making the installation of the LED light source 2 easier.

[0019] refer to Figure 1 , Figure 4 and Figure 6 The lens 3 is surrounded by a ring-shaped flat pressing edge 31, on which a sealing gasket 7 is fitted. A groove 71 is provided on the inner side of the sealing gasket 7, which engages with the pressing edge 31, thus covering the back, front, and side of the pressing edge 31. This makes the sealing gaskets on the three sides of the pressing edge 31 a single, integrated structure, resulting in strong integrity, high strength, and simple installation. The pressing edge 31 of the lens 3 rests on a step 14 on the inner side wall of the lamp housing. Because the step 14 is located inside the side wall 12 and is integrated with it, the internal space of the lamp housing is large, accommodating a large lens 3. Furthermore, the side wall 12 can automatically center and limit the lens 3, making lens 3 installation convenient.

[0020] refer to Figure 1 , Figure 4 and Figure 6 The reflector cup 4 has a threaded hole 41 on its back corresponding to the mounting hole 15 on the side wall of the lamp housing. A screw M passes through the mounting hole 15 from the outside of the side wall 12 and is screwed into the threaded hole 41 to fix the reflector cup 4 to the lamp housing 1. The reflector cup 4 presses the lens edge 31 against the step 14 on the side wall of the lamp housing for fixation. Since the sealing gasket 7 covers the back, front, and side of the edge 31, the pressure of the reflector cup 4 can simultaneously seal the contact surfaces of the step 14, the lens 3, and the reflector cup 4. Because the reflector cup 4 is fixed to the lamp housing with screws, it is more secure than the slot fixing method, and no installation gap is required. The reflector cup 4 is not easy to loosen and will not produce abnormal noise.

[0021] This utility model features a step on the inner side wall, on which a sealing ring, lens, and reflector are installed. A wire outlet hole is located at the bottom of the lamp housing, and a sealing component is installed on the wire outlet hole to seal the power cord. The reflector is simply fixed to the step with screws, and the reflector presses against the lens and sealing ring to seal the interface between the step, lens, and reflector. The lamp housing has a simple and integral structure, is easy to assemble, and has a good sealing effect.

[0022] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A simple waterproof downlight, comprising a lamp housing, the lamp housing including a bottom wall and side walls surrounding the bottom wall, wherein an LED light source, a lens, and a reflector are sequentially installed inside the lamp housing from the bottom wall to the light outlet, characterized in that: The bottom wall is provided with a wire outlet hole, and the inner side of its side wall is provided with a step. A power cord sealing assembly is provided in the wire outlet hole. The power cord passes through the sealing assembly and is electrically connected to the LED light source. The LED light source is installed on the bottom wall. The lens is placed on the step. The reflector is fixed on the step with screws. The lens is clamped between the reflector and the step. Sealing gaskets are provided between the reflector and the lens and between the lens and the step.

2. A waterproof downlight with a simple structure according to claim 1, characterized in that: The outlet hole is provided with an internal thread. The power cord sealing assembly includes a sleeve with external threads at both ends and a retaining ring in the middle. The lower end of the sleeve is installed in the outlet hole through the external thread. The retaining ring abuts against the outer side of the bottom wall of the lamp housing, and an O-ring seal is provided between the retaining ring and the bottom wall of the lamp housing. The upper end of the sleeve has a trumpet-shaped opening, and a conical sealing ring matching its shape is installed in the opening. A cap nut is installed at the upper end of the sleeve, and an opening is provided in the cap of the cap nut. The power cord passes through the opening of the cap nut, the conical sealing ring, and the sleeve in sequence to connect to the LED light source. The cap nut presses the conical sealing ring into the opening at the upper end of the sleeve to seal the power cord and the opening.

3. A waterproof downlight with a simple structure according to claim 2, characterized in that: A sealing groove is provided on the lower side of the retaining ring, and the O-ring is fixed in the sealing groove.

4. A waterproof downlight with a simple structure according to claim 1, characterized in that: The lens is surrounded by an annular pressing edge, and the sealing gasket is provided with a slot on the inner side. The slot is engaged with the pressing edge, and the sealing gasket covers the back, front and side of the pressing edge.

5. A waterproof downlight with a simple structure according to claim 1, characterized in that: The LED light source includes a lamp board, an LED module mounted on the lamp board, and a bracket for fixing the lamp board. The bracket has a light-emitting hole in the center and a wire groove on the back. The bracket is fixed to the bottom wall of the lamp housing by screws. The LED module is located in the light-emitting area. The edge of the light-emitting hole presses against the lamp board of the LED light source. The power cord is connected to the lamp board through the wire groove.

6. A waterproof downlight with a simple structure according to claim 1, characterized in that: The inner shape of the sidewall matches the outer shape of the lens, allowing for centering and limiting the lens.

Images