Waterproof down lamp

Abstract

A waterproof down lamp is characterized in that the waterproof down lamp comprises a lamp shell, the lamp shell is provided with a containing cavity, a light outlet and an opening, the light outlet and the opening are connected with the containing cavity, the light outlet is formed in the front face of the lamp shell, the opening is formed in the back face of the lamp shell, and the lamp shell is further provided with an installation ring formed by surrounding the containing cavity; the side wall of the accommodating cavity is perpendicular to the mounting ring; the light source plate enters the containing cavity through the opening and is arranged in the containing cavity; the light-transmitting piece is made of light-transmitting plastic and is arranged in the light outlet through a double-shot molding process; and the rear cover covers the opening, and a waterproof structure is arranged between the edge of the rear cover and the opening. The light-transmitting piece is arranged in the light outlet of the lamp shell through the double-shot molding technology and is tightly connected with the light outlet, production is extremely convenient, and the waterproof performance is extremely good. A waterproof structure is arranged between the edge of the rear cover and the opening and arranged on the back face of the down lamp, and normal use of the lamp cannot be affected even if the surface of the down lamp is sprinkled with water.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to a waterproof downlight. Background Art

[0002] Downlights are recessed lamps that are embedded in the ceiling and project light downwards. They are widely used in both home improvement projects and large public places. With technological advancements, cost reductions, and the growing popularity of minimalist concepts, the simplest downlight structure currently available on the market is to install a light source panel at the bottom of the lamp housing, and then install a translucent component at the lamp housing opening to complete the assembly of the entire lamp. However, due to the gap between the translucent component and the lamp housing opening, water vapor can enter the interior of the lamp body through this gap. Therefore, the protection level of this type of downlight is extremely low. Waterproof downlights available on the market address the gap between the translucent component and the lamp housing opening by applying glue, setting rubber rings, and even ultrasonic welding. However, this structure requires many assembly steps and is prone to scratching and damaging the translucent component during assembly, increasing product cost. In actual use scenarios, the downlight surface is more likely to be splashed with water, which also increases the risk of water ingress. Utility Model Content

[0003] The purpose of the utility model is to provide a downlight with a simple structure, convenient assembly, no damage to the light-transmitting part during assembly, and excellent waterproof performance.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a waterproof downlight, comprising:

[0005] A lamp housing is provided with a cavity, and a light outlet and an opening connected to the cavity, the light outlet is provided on the front of the lamp housing, the opening is provided on the back of the lamp housing, and the lamp housing is further provided with a mounting ring formed around the cavity, and the side wall of the cavity is perpendicular to the mounting ring;

[0006] A light source board is placed in the cavity through the opening;

[0007] A light-transmitting member, made of light-transmitting plastic, is disposed in the light outlet through a two-color injection molding process;

[0008] The back cover covers the opening, and a waterproof structure is provided between the edge of the back cover and the opening.

[0009] Preferably, the light-transmitting member is a lens, the surface of the lamp housing is recessed toward the receiving cavity to form a light-collecting cavity, and the light-transmitting member is arranged at the bottom of the light-collecting cavity.

[0010] Preferably, the light focusing cavity protrudes toward the interior of the receiving cavity.

[0011] Preferably, the light source plate is provided with LED light sources, the surface of the light source plate is in contact with the inner surface of the cavity, and the LED light sources are arranged in the light outlet.

[0012] Preferably, the waterproof structure comprises a waterproof groove arranged at the edge of the rear cover, the edge of the opening is arranged in the waterproof groove, and the waterproof groove is filled with sealing glue.

[0013] Preferably, the cavity and the rear cover are both provided with mutually matched buckle structures, and the rear cover is arranged at the back of the lamp shell through the buckle structures.

[0014] Preferably, the light source plate is matched with the cavity in shape and size, the rear cover is provided with a top column, and the top column abuts against the back of the light source plate.

[0015] Preferably, the buckle structure is arranged on the top column.

[0016] Preferably, the rear cover is provided with a wire outlet hole and a glue filling groove formed around the wire outlet hole, and the glue filling groove is arranged at the back surface of the rear cover.

[0017] Preferably, the glue filling groove is filled with sealing glue, and the sealing glue is filled after the rear cover is assembled to the lamp shell.

[0018] The waterproof down lamp can produce the following beneficial effects: (1) the light-transmitting part is arranged in the light outlet of the lamp shell through a double-color injection molding process, and the light-transmitting part and the lamp shell are tightly connected, production is extremely convenient, and waterproof performance is extremely good; (2) the light source plate enters the cavity through the opening, and the opening is covered by the rear cover, and assembly is extremely convenient; (3) the edge of the rear cover and the opening are provided with a waterproof structure, the waterproof structure is arranged at the back of the down lamp, and even if the surface of the down lamp is splashed with water, the normal use of the lamp is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional schematic view of the utility model.

[0020] Figure 2 is a front exploded three-dimensional schematic view of the utility model.

[0021] Figure 3 is a back exploded three-dimensional schematic view of the utility model.

[0022] Figure 4 is Figure 1 the sectional view of A-A.

[0023] 1-lamp housing; 11-cavity; 12-light outlet; 13-opening; 14-mounting ring; 15-light focusing cavity; 2-light source board; 21-LED light source; 3-light-transmitting part; 4-back cover; 41-waterproof groove; 42-snap-on structure; 43-top column; 5-wire outlet hole; 51-glue filling groove. DETAILED DESCRIPTION

[0024] The technical solution of the present utility model is further described below with reference to specific embodiments.

[0025] like Figures 1 to 4 As shown, a waterproof downlight includes a lamp housing 1, which is provided with a cavity 11, and a light outlet 12 and an opening 13 connected to the cavity 11, the light outlet 12 is arranged on the front of the lamp housing 1, and the opening 13 is arranged on the back of the lamp housing 1. The lamp housing 1 is also provided with a mounting ring 14 formed around the cavity 11, and the side wall of the cavity 11 is perpendicular to the mounting ring 14; a light source board 2 enters and is arranged in the cavity 11 through the opening 13; a light-transmitting member 3 is made of light-transmitting plastic and is arranged in the light outlet 12 by a two-color injection molding process; a back cover 4 covers the opening 13, and a waterproof structure is provided between the edge of the back cover 4 and the opening 13. The light-transmitting element 3 is positioned within the light outlet 12 of the lamp housing 1 via a two-shot injection molding process, tightly connecting the two components for extremely convenient production and excellent waterproofing. The light source panel 2 enters the cavity 11 through an opening 13, which is then covered by a back cover 4, making assembly extremely convenient. A waterproof structure is provided between the edge of the back cover 4 and the opening 13. This waterproof structure is located on the back of the lamp body, ensuring that even if water is spilled on the surface of the lamp body, the normal operation of the lamp will not be affected. It is important to note that in conventional downlights, the light outlet 12 and opening 13 are both located on the front surface of the lamp housing 1. This structure facilitates assembly and ensures a tight seal on the back of the lamp housing 1. To increase lighting efficiency and facilitate user installation, the sides of the cavity 11 are angled inward. However, in the present invention, since the light-transmitting element 3 and the lamp housing 1 are connected via a two-shot injection molding process, the inward-angled design of the cavity 11 prevents it from being removed from the mold. Therefore, the side walls of the cavity 11 must be perpendicular to the mounting ring 14 for the lamp housing to be ejected from the mold.

[0026] The light-transmitting member 3 is a lens. The surface of the lamp housing 1 is recessed toward the cavity 11 to form a light-collecting cavity 15. The light-transmitting member 3 is disposed at the bottom of the light-collecting cavity 15. The light-collecting cavity 15 protrudes toward the interior of the cavity 11. The light source board 2 is provided with an LED light source 21. The surface of the light source board 2 contacts the inner surface of the cavity 11, and the LED light source 21 is disposed within the light outlet 12. The lens increases the luminous flux of the LED light source 21, and the light-collecting cavity 15 converges the light emitted by the lens before emitting it, resulting in better lighting efficiency and higher brightness.

[0027] The waterproof structure comprises a waterproof groove 41 arranged at the edge of the rear cover 4, and the edge of the opening 13 is arranged in the waterproof groove 41, since the waterproof groove 41 is arranged on the rear cover 4, the direction of the waterproof groove 41 is downward after the lamp is assembled, when water flows to the lamp from top to bottom, the water cannot enter the inside of the lamp body, the waterproof groove 41 is filled with sealing glue, and the protection level of the product is greatly improved.

[0028] The inside of the accommodating cavity 11 and the rear cover 4 are provided with buckling structures 42 matched with each other, the rear cover 4 is arranged on the back of the lamp shell 1 through the buckling structures 42, the shape and size of the light source plate 2 are matched with the shape and size of the accommodating cavity 11, the rear cover 4 is provided with a top column 43, the top column 43 abuts against the back of the light source plate 3, and the buckling structures are arranged on the top column 43. This structure can greatly improve the assembly speed of the product, save cost, and the light source plate 2 is extremely firm in installation.

[0029] The waterproof effect is realized, the wire outlet hole 5 of the lamp also needs to be waterproof, in order to guarantee the appearance of the product, the waterproof treatment of the wire outlet hole 5 is arranged in the inside of the lamp body, that is, sealing glue is filled near the wire outlet hole 5 in the inside of the lamp body, and then the lamp body is sealed, at this time, air is compressed to the inside of the lamp body, but the sealing of the lamp body has been completed, the gas in the inside of the lamp body cannot be discharged, and the gas pressure in the inside of the lamp body is too high, which is prone to failure, the traditional structure needs to be provided with an exhaust hole on the lamp body, and the exhaust hole is filled with sealing glue after assembly is completed, the sealing performance of the structure is poor, and the appearance of the product is affected, in the utility model, the rear cover 4 is provided with a wire outlet hole 5 and a glue filling groove 51 formed around the wire outlet hole 5, the glue filling groove 51 is arranged on the rear surface of the rear cover 4, sealing glue is arranged in the glue filling groove 5, and the sealing glue is filled after the rear cover 4 is assembled to the lamp shell 1. When the lamp shell 1 and the rear cover 4 are sealed, air is discharged from the wire outlet hole 5, and finally the sealing glue is filled in the glue filling groove 51, so that the waterproof purpose of the wire outlet hole is achieved, and the gas pressure in the inside of the lamp body cannot be too high.

[0030] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the utility model, and these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A waterproof downlight, characterized in that: include: A lamp housing is provided with a cavity, and a light outlet and an opening connected to the cavity, the light outlet is provided on the front of the lamp housing, the opening is provided on the back of the lamp housing, and the lamp housing is further provided with a mounting ring formed around the cavity, and the side wall of the cavity is perpendicular to the mounting ring; A light source board is placed in the cavity through the opening; A light-transmitting member, made of light-transmitting plastic, is disposed in the light outlet through a two-color injection molding process; The back cover covers the opening, and a waterproof structure is provided between the edge of the back cover and the opening.

2. The waterproof downlight according to claim 1, characterized in that: The light-transmitting member is a lens, the surface of the lamp housing is recessed toward the receiving cavity to form a light-collecting cavity, and the light-transmitting member is arranged at the bottom of the light-collecting cavity.

3. The waterproof downlight according to claim 2, characterized in that: The light focusing cavity protrudes toward the interior of the receiving cavity.

4. The waterproof downlight according to claim 2, characterized in that: An LED light source is provided on the light source board, a surface of the light source board contacts the inner surface of the cavity, and the LED light source is arranged in the light outlet.

5. The waterproof downlight according to claim 1, characterized in that: The waterproof structure includes a waterproof groove arranged at the edge of the back cover, the edge of the opening is arranged in the waterproof groove, and the waterproof groove is filled with sealant.

6. The waterproof downlight according to claim 5, characterized in that: Mutually adapted buckle structures are provided inside the cavity and on the back cover, and the back cover is arranged on the back side of the lamp housing through the buckle structures.

7. The waterproof downlight according to claim 6, characterized in that: The shape and size of the light source board are adapted to the shape and size of the cavity. A top column is provided on the rear cover, and the top column rests against the back surface of the light source board.

8. The waterproof downlight according to claim 7, characterized in that: The buckle structure is arranged on the top column.

9. The waterproof downlight according to claim 1, characterized in that: The back cover is provided with a wire outlet hole and a glue filling groove formed around the wire outlet hole, and the glue filling groove is arranged on the rear surface of the back cover.

10. The waterproof downlight according to claim 9, characterized in that: The glue filling groove is provided with sealant, and the sealant is filled after the back cover is assembled to the lamp housing.

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