A down lamp with waterproof structure

CN224718760UActive Publication Date: 2026-09-04GUANGDONG OUWEI LIGHTING ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202522060626.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-09-04
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

[0003]现有的筒灯一般利用自身特殊的组装结构将灯壳、灯板、灯芯、反光杯、透光罩等快速组装而成,组装结构一般有螺栓、活动卡扣等,这些组装结构存在一定的安装缝隙,导致组合式灯具普遍存在防水性能不足的问题,针对一些特殊区域(室外走廊、卫生间、厨房、公交站台)使用的吊顶组合式灯具长期暴露于外界环境中,水分易通过灯具的拼接缝隙进入内部,导致灯体短路、损坏,缩短使用寿命,甚至引发安全事故,因此我们需要提出一种带有防水结构的筒灯

Benefits of technology

本实用新型通过壳体内部设置的密封环,密封环的顶部套装有防水胶环,防水胶环用于对密封环与透光罩之间的拼接缝隙进行封堵,并通过压紧环将透光罩、防水胶环与密封环进行抵紧压合,从而实现对灯体进行密封处理的效果,壳体、密封环、防水胶环、透光罩、压紧环的配合形成密闭空间,避免水分从缝隙中进入壳体的内部而导致灯体侵蚀损坏的情况,适用于潮湿及户外环境,提高灯具的使用寿命。

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Abstract

The utility model discloses a down lamp with waterproof structure, including the lamp shell, the inside of lamp shell is equipped with the lamp body, the light -transmitting cover, the compression ring, the diffuser cup in proper order, the lamp shell includes the protection structure casing, and the bottom of casing inner side wall is installed with the sealing ring, and the top of sealing ring is equipped with waterproof rubber ring, the utility model discloses the sealing ring that sets up in the casing inside, and the top of sealing ring is equipped with waterproof rubber ring, and waterproof rubber ring is used for the joint gap between sealing ring and light -transmitting cover and carries out the plugging, and through the compression ring, light -transmitting cover, waterproof rubber ring and sealing ring are pressed tightly and are pressed together, thereby realize the effect of sealing treatment to the lamp body, and the cooperation of casing, sealing ring, waterproof rubber ring, light -transmitting cover, compression ring forms the closed space, avoids the moisture from the gap and enters the inside of casing and leads to the lamp body erosion damage's condition, is applicable to the humid and outdoor environment, improves the service life of lamps and lanterns.
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Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically to a downlight with a waterproof structure. Background Technology

[0002] Modular lighting fixtures are intelligent lighting systems based on modular design. They achieve multiple functional expansions through the free combination of the main lamp holder and peripheral functional modules. Generally, they utilize their special docking structure to quickly assemble lamp housings, lamp panels, lamp cores, reflectors, light-transmitting covers, etc., into a complete lighting fixture, improving the convenience of lamp maintenance and replacement of parts.

[0003] Existing downlights typically utilize their unique assembly structure to quickly assemble components such as the lamp housing, lamp panel, lamp core, reflector, and light-transmitting cover. This assembly structure usually includes bolts and movable clips, which leave certain installation gaps. This results in insufficient waterproofing for modular lighting fixtures. For ceiling-mounted modular lighting fixtures used in certain special areas (outdoor corridors, bathrooms, kitchens, bus stops), which are constantly exposed to the external environment, moisture can easily enter the interior through the joints, causing short circuits, damage, shortened lifespan, and even safety accidents. Therefore, we need to propose a downlight with a waterproof structure. Utility Model Content

[0004] The purpose of this utility model is to provide a downlight with a waterproof structure. Through the connection between the lamp housing, lamp body, light-transmitting cover, clamping ring, and diffuser cup, the lamp can be quickly assembled and installed. A sealing ring is provided inside the housing, and a waterproof rubber ring is fitted on the top of the sealing ring. The waterproof rubber ring is used to seal the joint gap between the sealing ring and the light-transmitting cover. The light-transmitting cover, waterproof rubber ring, and sealing ring are pressed together by the clamping ring, thereby achieving the effect of sealing the lamp body and preventing moisture from entering the interior of the housing through the gaps, which would cause corrosion and damage to the lamp body. This solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a downlight with a waterproof structure, comprising a lamp housing, wherein a lamp body, a light-transmitting cover, a pressing ring, and a diffuser are sequentially and movably mounted inside the lamp housing; the lamp housing includes a protective structural shell, a sealing ring is installed at the bottom of the inner side wall of the shell, a waterproof rubber ring is fitted on the top of the sealing ring, one side of the light-transmitting cover is fitted with one side of the waterproof rubber ring, a second buckle is provided in the middle of the inner side wall of the shell, the pressing ring is rotatably mounted inside the second buckle and located inside the light-transmitting cover, and one side of the pressing ring presses against and seals the light-transmitting cover and the waterproof rubber ring, so that a sealed space for protecting the lamp body is formed between the light-transmitting cover, the sealing ring, and the shell.

[0006] Preferably, a first buckle is provided at the bottom of the inner cavity of the housing, and the lamp body includes a lamp plate, which is installed above the first buckle by a locking buckle.

[0007] Preferably, the top of the lamp panel is electrically connected to several sets of lamp beads, and a reflector cup for focusing the light of the several sets of lamp beads is installed on one side of the lamp panel.

[0008] Preferably, a third buckle is installed on the upper part of the inner sidewall of the housing, and a diffuser cup is rotatably engaged with the inner sidewall of the housing via the third buckle.

[0009] Preferably, a number of heat sinks are installed on the outer side of the housing, and a wire hole is provided on the outer side of the housing, through which the wiring port of the lamp board is sealed to the outer side of the through housing.

[0010] Preferably, the mounting plate of the housing is fitted with a sealing ring through a concave groove, and when the lamp is installed, the sealing ring seals the reserved hole for installation.

[0011] Preferably, two sets of spring clips are symmetrically installed on the outer side of the housing. When the lamp is installed, the spring clips securely fasten the lamp inside the pre-drilled hole in the ceiling.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a sealing ring inside the housing, with a waterproof rubber ring fitted on top of the sealing ring. The waterproof rubber ring seals the gap between the sealing ring and the light-transmitting cover. A clamping ring then presses the light-transmitting cover, the waterproof rubber ring, and the sealing ring together, achieving a sealing effect on the lamp body. The cooperation of the housing, sealing ring, waterproof rubber ring, light-transmitting cover, and clamping ring forms a sealed space, preventing moisture from entering the interior of the housing through gaps and causing corrosion and damage to the lamp body. This design is suitable for humid and outdoor environments, extending the lifespan of the lamp.

[0013] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure for the threading hole in this utility model; Figure 3 This is an exploded structural diagram of the lamp body assembly of this utility model; Figure 4 This is a schematic diagram of the lamp body mounting structure of this utility model; Figure 5 This is a schematic diagram of the waterproof rubber ring installation structure of this utility model.

[0015] In the diagram: 1. Lamp housing; 11. Housing; 12. Wiring hole; 13. First clip; 14. Sealing ring; 15. Second clip; 16. Third clip; 17. Heat sink; 18. Sealing ring; 19. Spring clip; 21. Lamp board; 22. Locking buckle; 23. Lamp bead; 24. Reflector; 3. Waterproof rubber ring; 4. Light-transmitting cover; 5. Pressure ring; 6. Diffuser. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-5 This utility model provides a downlight with a waterproof structure, including a lamp housing 1. Inside the lamp housing 1, a lamp body, a light-transmitting cover 4, a pressing ring 5, and a diffuser cup 6 are sequentially and movably mounted. The lamp housing 1 includes a protective structure shell 11. A sealing ring 14 is installed at the bottom of the inner side wall of the shell 11. A waterproof rubber ring 3 is fitted on the top of the sealing ring 14. One side of the light-transmitting cover 4 is attached to one side of the waterproof rubber ring 3. A second buckle 15 is provided in the middle of the inner side wall of the shell 11. The pressing ring 5 is rotated and mounted inside the second buckle 15 and located inside the light-transmitting cover 4. One side of the pressing ring 5 presses against the light-transmitting cover 4 and the waterproof rubber ring 3, so that a sealed space for protecting the lamp body is formed between the light-transmitting cover 4, the sealing ring 14, and the shell 11.

[0018] In use, the lamp can be quickly assembled and installed by connecting the lamp housing 1, lamp body, light-transmitting cover 4, clamping ring 5, and diffuser cup 6. The housing 11 has a sealing ring 14 inside, and a waterproof rubber ring 3 is fitted on the top of the sealing ring 14. The waterproof rubber ring 3 is used to seal the joint between the sealing ring 14 and the light-transmitting cover 4. The clamping ring 5 is used to press the light-transmitting cover 4, the waterproof rubber ring 3, and the sealing ring 14 together, thereby achieving the effect of sealing the lamp body 2 and preventing moisture from entering the interior of the housing 11 through the gaps, which would cause the lamp body 2 to be corroded and damaged.

[0019] The bottom of the inner cavity of the housing 11 is provided with a first buckle 13. The lamp body includes a lamp plate 21. The lamp plate 21 is installed on the top of the first buckle 13 by a latch 22. The fixing method of combining the buckle and the latch 22 ensures that the lamp body is installed firmly and facilitates the disassembly and maintenance of the lamp body 2.

[0020] The top of the lamp panel 21 is electrically connected to several groups of LED beads 23, and a reflector cup 24 is installed on one side of the lamp panel 21 to focus the light on the several groups of LED beads 23. The lamp panel 21 plays a role in stabilizing the power transmission of the LED beads 23. The core function of the reflector cup 24 is to control the direction of light, enhance the focusing effect, and optimize the illumination distance and uniformity. It is widely used in LED flashlights, spotlights, searchlights and other lighting equipment.

[0021] A third buckle 16 is installed on the upper part of the inner side wall of the housing 11. The diffuser cup 6 is rotated and snapped onto the inner side wall of the housing 11 through the third buckle 16. The third buckle 16 enables the quick installation and removal of the diffuser cup 6. The diffuser cup 6 helps to diffuse the light and makes the light in the irradiated area more uniform and stable.

[0022] Several sets of heat sinks 17 are installed on the outside of the housing 11. Through the heat sinks 17, the heat inside the lamp housing 1 is transferred to the heat sinks through the housing. The heat sinks diffuse the heat to the outside air, thereby achieving the effect of quickly dissipating the heat conducted by the housing 11, avoiding excessive temperature inside the housing 11, and thus improving the service life of the lamp board 21 and the lamp beads 23. A wire hole 12 is provided on the outside of the housing 11. The wiring port of the lamp board 21 passes through the wire hole 12 in a sealed manner to the outside of the housing 11, which facilitates connection to the main power supply line from the outside without reducing the airtightness of the housing.

[0023] The mounting plate of the housing 11 is fitted with a sealing ring 18 via a concave groove. When the light fixture is installed, the sealing ring 18 seals the pre-drilled holes. The sealing ring 18 seals the area where the housing 11 meets the ceiling, preventing external dust, gas, and moisture from entering the ceiling and corroding the main wiring.

[0024] Two sets of spring clips 19 are symmetrically installed on the outer side of the housing 11. When the light fixture is installed, the spring clips 19 securely fasten the light fixture inside the pre-drilled hole in the ceiling. The two sets of spring clips 19 ensure that the light fixture can be stably attached to the bottom of the ceiling without any installation marks, making installation and disassembly convenient.

[0025] In practical use: First, fit the waterproof rubber ring 3 onto the top of the sealing ring 14 to ensure a tight fit. Then, install the lamp body and attach the lamp plate 21 to the first buckle 13 at the bottom of the inner cavity of the housing 11 using the latch 22 to ensure the lamp body is securely installed. Next, install the light-transmitting cover 4 and attach one side of the light-transmitting cover 4 to the side of the waterproof rubber ring 3, placing it inside the housing 11. Then, install the clamping ring 5 onto the inner wall of the light-transmitting cover 4 using the second buckle 15 in the middle of the inner wall of the housing 11, so that one side of the clamping ring 5 presses against the light-transmitting cover 4 and the waterproof rubber ring 3 to form a sealed space. Finally, install the diffuser cup 6 and rotate and engage it using the third buckle 16 at the top of the inner wall of the housing 11 to complete the lamp assembly. The wiring port of the light panel 21 is sealed through the wire hole 12 on the outside of the housing 11. The wiring port is connected to the circuit hidden above the ceiling. The assembled light fixture is then aligned with the reserved hole in the ceiling. The light fixture is securely installed in the reserved hole in the ceiling by the two sets of spring clips 19 on the outside of the housing 11. At this time, the sealing ring 18 on the mounting plate of the housing 11 seals the reserved hole, thereby realizing the quick installation of the light fixture.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A downlight with a waterproof structure, characterized in that: Includes a lamp housing (1), inside which a lamp body, a light-transmitting cover (4), a clamping ring (5), and a diffuser cup (6) are sequentially and movably mounted. The lamp housing (1) includes a protective structure housing (11). A sealing ring (14) is installed at the bottom of the inner wall of the housing (11). A waterproof rubber ring (3) is fitted on the top of the sealing ring (14). One side of the light-transmitting cover (4) is attached to one side of the waterproof rubber ring (3). A second buckle (15) is provided in the middle of the inner wall of the housing (11). A pressing ring (5) is rotated and clamped inside the second buckle (15) and located inside the light-transmitting cover (4). One side of the pressing ring (5) presses against the light-transmitting cover (4) and the waterproof rubber ring (3), so that a sealed space for protecting the lamp body is formed between the light-transmitting cover (4), the sealing ring (14) and the housing (11).

2. A downlight with a waterproof structure according to claim 1, characterized in that: The bottom of the inner cavity of the housing (11) is provided with a first buckle (13), and the lamp body includes a lamp plate (21), which is installed above the first buckle (13) by a latch (22).

3. A downlight with a waterproof structure according to claim 2, characterized in that: The top of the lamp panel (21) is electrically connected to several sets of lamp beads (23), and a reflector (24) for focusing the light of the several sets of lamp beads (23) is installed on one side of the lamp panel (21).

4. A downlight with a waterproof structure according to claim 1, characterized in that: A third buckle (16) is installed on the upper part of the inner side wall of the housing (11), and a diffuser cup (6) is rotatably attached to the inner side wall of the housing (11) through the third buckle (16).

5. A downlight with a waterproof structure according to claim 1, characterized in that: Several sets of heat sinks (17) are installed on the outside of the housing (11), and a wire hole (12) is opened on the outside of the housing (11). The wiring port of the lamp board (21) is sealed through the wire hole (12) on the outside of the through housing (11).

6. A downlight with a waterproof structure according to claim 1, characterized in that: The mounting plate of the housing (11) is fitted with a sealing ring (18) through a concave groove. When the lamp is installed, the sealing ring (18) seals the reserved hole for installation.

7. A downlight with a waterproof structure according to claim 1, characterized in that: Two sets of spring clips (19) are symmetrically installed on the outer side of the housing (11). When the lamp is installed, the spring clips (19) securely fasten the lamp inside the pre-reserved hole in the ceiling.