A multi-layer waterproof LED light for automobiles
By designing a multi-layered waterproof structure on automotive LED lights, including an inner sealing layer, an outer protective layer, and an elastic buffer layer, the problem of weak sealing of single-layer waterproof structures in complex environments is solved, achieving higher waterproof reliability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU HUNDAR POLICE EQUIP CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
AI Technical Summary
The existing single-layer waterproof structure of automotive LED lights is significantly less effective in situations such as heavy rain, flooded roads, or high-pressure water washing. Weak points in the seal can easily allow water to enter the lamp, affecting the lighting effect and safety.
The design employs a multi-layer waterproof structure, which includes a first and second rain shield embedded in a limiting groove and fixed with bolts. Combined with a sealing gasket and connecting plate, it forms an inner sealing layer and an outer protection layer. An elastic buffer layer is added to absorb vibration, forming a three-layer waterproof structure.
It significantly improves the waterproof reliability of LED small lights, reduces the risk of seal failure during long-term use, avoids the "one-to-all" phenomenon caused by the single-layer structure, and improves the overall safety and service life of the car.
Smart Images
Figure CN224284547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive LED small lights, and in particular to a multi-layer waterproof automotive LED small light. Background Technology
[0002] With the rapid development of the automotive industry, automotive LED lights have been widely used in the field of automotive lighting due to their significant advantages such as energy saving, long lifespan, high brightness, and fast response speed. Whether it's daytime running lights, turn signals, brake lights, or interior reading lights, LED lights play a crucial role, and their performance and reliability directly affect the safety and driving experience of a vehicle. However, cars face various complex environmental conditions during operation, including rain, car wash water, and humid air, all of which place extremely high demands on the waterproof performance of automotive LED lights. If the waterproof performance of an LED light is inadequate, moisture or water entering the lamp housing can not only cause damage to the LED chips due to moisture, affecting the lighting effect, but may also lead to serious problems such as short circuits, thereby threatening the overall safe operation of the vehicle. Currently, most existing automotive LED lights on the market adopt a single-layer waterproof structure, such as by setting a single sealing ring on the edge of the lamp housing, or by performing simple injection molding sealing treatment on the lamp housing. This single-layer waterproof structure provides some protection against general damp conditions, but its effectiveness diminishes significantly when the car is exposed to heavy rain, drives through flooded areas, or undergoes high-pressure water washing. Because the single-layer structure has weak points in its seal, water pressure allows moisture to easily breach the seal and enter the lamp. Furthermore, over time, the individual sealing components are prone to aging and deformation, further reducing waterproofing performance and increasing the failure rate of the LED lights. Therefore, this invention proposes a novel solution. Utility Model Content
[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a multi-layer waterproof LED small light for vehicles, which can solve the problem that the waterproof effect is greatly reduced when a car encounters heavy rain, drives through flooded sections of road, or is washed with a high-pressure water gun. Because the single-layer waterproof structure has weak points in the seal, under the action of water pressure, water can easily break through the seal and enter the interior of the light fixture.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer waterproof LED small light for vehicles, including an LED small light body, wherein a removable battery, LED beads and corresponding control components are installed inside the LED small light body;
[0005] A waterproof component is installed on the LED light body. The waterproof component includes a first rain cover, which is located at the upper end of the LED light body. A first limiting groove is formed on the surface of the LED light body. A second sealing gasket for sealing the LED light body and the first rain cover is installed inside the first limiting groove. The first rain cover is snapped into the first limiting groove. Six first bolts are connected to the internal threads of the first rain cover. The first rain cover and the LED light body are fixed together by the six first bolts.
[0006] The upper end of the LED light body is provided with a second rain cover, which is located outside the first rain cover. A second limiting groove is opened on the surface of the LED light body, and the second rain cover is snapped into the second limiting groove. A third sealing gasket for sealing the LED light body and the second rain cover is installed inside the second limiting groove. Six second bolts are threaded inside the second rain cover, and the second rain cover and the LED light body are fixed together by the six second bolts.
[0007] Preferably, the waterproof component further includes a connecting plate, which is fixedly connected to the inner side of the second rain cover, and a first sealing gasket is provided between the connecting plate and the first rain cover.
[0008] Preferably, a rubber pad is fixedly connected to the bottom edge of the LED lamp body.
[0009] Preferably, a fixing cylinder is fixedly connected to the bottom of the LED lamp body, a suction cup connecting rod is slidably connected inside the fixing cylinder, a return spring is provided inside the fixing cylinder, and the upper and lower ends of the return spring are fixedly connected to the LED lamp body and the suction cup connecting rod respectively; a suction cup is fixedly connected to the lower end of the suction cup connecting rod.
[0010] Preferably, the number of the fixing cylinder, the suction cup connecting rod, the reset spring and the suction cup are all six, and they are symmetrically arranged at the lower end of the LED lamp body.
[0011] Preferably, each of the six connections between the first bolt and the first rain cover is fitted with a silicone gasket for sealing the first bolt and the first rain cover.
[0012] Preferably, each of the six connections between the second bolts and the second rain cover is fitted with a second silicone gasket for sealing the second bolts and the second rain cover.
[0013] Preferably, two heat sinks are fixedly connected to the outer surface of the LED lamp body.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The multi-layer waterproof LED small light for vehicles forms a first layer of liquid seal through the second sealing gasket, preventing rainwater from seeping in from the top gap; the first sealing gasket between the connecting plate and the first rain cover forms an elastic buffer layer between the two rain covers, absorbing the micro-deformation of the structure caused by vehicle vibration and avoiding sealing failure caused by hard contact; the second rain cover covers the outside of the first rain cover, and forms an outer physical barrier through the cooperation of the third sealing gasket and the second limiting groove, forming a "layer-by-layer failure redundancy" mechanism, which reduces the risk of waterproof failure of the lamp during long-term use. Compared with the "one failure, all failures" mode of the traditional single-layer structure, the reliability is significantly improved. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0016] Figure 1 This is a schematic diagram of the structure of a multi-layer waterproof LED small light for vehicles according to this utility model;
[0017] Figure 2 This is a schematic diagram of the bottom of the LED lamp body of this utility model;
[0018] Figure 3 This is a schematic diagram of the first sealing gasket of this utility model;
[0019] Figure 4 This is a schematic diagram of the LED lamp body of this utility model;
[0020] Figure 5 This is a schematic diagram of the suction cup of this utility model;
[0021] Figure 6 This is a schematic diagram of the second rain cover of this utility model;
[0022] Figure 7 This is a schematic diagram of the first rain cover of this utility model.
[0023] Reference numerals in the attached diagram: 1. LED light body; 2. Heat sink; 3. Rubber pad; 4. Fixing cylinder; 5. Suction cup connecting rod; 6. Return spring; 7. First rain cover; 8. Second rain cover; 9. First sealing gasket; 10. Connecting plate; 11. First limiting groove; 12. Second sealing gasket; 13. First bolt; 14. Silicone gasket; 15. Second limiting groove; 16. Third sealing gasket; 17. Second bolt; 18. Second silicone gasket; 19. Suction cup. Detailed Implementation
[0024] This section will describe in detail the specific embodiments of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model. However, they should not be construed as limiting the scope of protection of this utility model. In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.
[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.
[0026] Please see Figure 1-7 This utility model provides a technical solution: a multi-layer waterproof LED small light for vehicles, including an LED small light body 1. The LED small light body 1 contains a removable battery, LED beads (and a lamp cover), and corresponding control components (known technology). A waterproof component is disposed on the LED small light body 1. The waterproof component includes a first rain shield 7, which is disposed at the upper end of the LED small light body 1. A first limiting groove 11 is formed on the surface of the LED small light body 1. A second sealing gasket 12 is installed inside the first limiting groove 11 to seal the LED small light body 1 and the first rain shield 7. The first rain shield 7 engages with the first limiting groove 11. Next, the first rain shield 7 is internally threaded with six first bolts 13, and the first rain shield 7 and the LED lamp body 1 are fixed together by the six first bolts 13. The upper end of the LED lamp body 1 is provided with a second rain shield 8, which is located outside the first rain shield 7. The surface of the LED lamp body 1 is provided with a second limiting groove 15, and the second rain shield 8 is engaged with the second limiting groove 15. The interior of the second limiting groove 15 is equipped with a third sealing gasket 16 for sealing the LED lamp body 1 and the second rain shield 8. The internal thread of the second rain shield 8 is connected with six second bolts 17, and the second rain shield 8 and the LED lamp body 1 are fixed together by the six second bolts 17.
[0027] The waterproof assembly also includes a connecting plate 10, which is fixedly connected to the inside of the second rain cover 8, and a first sealing gasket 9 is provided between the connecting plate 10 and the first rain cover 7.
[0028] A rubber pad 3 is fixedly connected to the bottom edge of the LED lamp body 1.
[0029] The bottom of the LED lamp body 1 is fixedly connected to a fixing cylinder 4. A suction cup connecting rod 5 is slidably connected inside the fixing cylinder 4. A reset spring 6 is installed inside the fixing cylinder 4. The upper and lower ends of the reset spring 6 are fixedly connected to the LED lamp body 1 and the suction cup connecting rod 5, respectively. A suction cup 19 is fixedly connected to the lower end of the suction cup connecting rod 5.
[0030] The number of fixed cylinder 4, suction cup connecting rod 5, return spring 6 and suction cup 19 are all six and are symmetrically arranged at the lower end of the LED lamp body 1.
[0031] Silicone gaskets 14 for sealing the connection between the six first bolts 13 and the first rain cover 7 are installed at the connection points of the first bolts 13 and the first rain cover 7.
[0032] Each of the six second bolts 17 and the second rain cover 8 is fitted with a second silicone gasket 18 for sealing the second bolts 17 and the second rain cover 8.
[0033] Two heat sinks 2 are fixedly connected to the outer surface of the LED lamp body 1.
[0034] When using this device, the LED lamp body 1 integrates lighting elements (LED beads, battery) and control module to provide lighting function.
[0035] The first rain shield 7, the second rain shield 8, the first sealing gasket 9, the second sealing gasket 12, and the third sealing gasket 16 form a dual waterproof system of "inner sealing + outer protection".
[0036] The lamp is elastically attached to the vehicle body by means of the fixing cylinder 4, the return spring 6, and the suction cup 19, thereby improving the installation stability.
[0037] Heat sink 2 assists in heat dissipation of LED beads, preventing the sealing material from aging due to high temperature.
[0038] The first rain cover 7 is designed with a sealing feature. The first rain cover 7 is embedded in the first limiting groove 11 of the LED lamp body 1 and fixed by six first bolts 13 to ensure structural stability. The second sealing gasket 12 is filled between the first rain cover and the first limiting groove to form the first sealing barrier, preventing rainwater from seeping in from the top gap of the lamp body. The silicone gasket 14 wraps the connection between the first bolt 13 and the rain cover to prevent the threaded hole from becoming a water seepage channel.
[0039] The second rain shield 8 provides dual protection. It is fitted over the outside of the first rain shield 7, embedded in the second limiting groove 15, and fixed by six second bolts 17, forming an outer physical barrier to withstand rainwater impact. The third sealing gasket 16 is placed between the second rain shield 8 and the limiting groove 15, while the first sealing gasket 9 fills the space between the connecting plate 10 and the first rain shield 7. Together, they form an "outer physical shield + middle sealing and buffer structure," creating a three-layer waterproof structure of "outer physical shield + middle sealing and buffer + inner precision sealing." Even if there are slight gaps in the outer rain shield, the inner sealing gasket can still prevent water penetration. The second silicone gasket 18 seals the connection of the second bolts 17, preventing the outer bolt holes from becoming leakage points.
[0040] The rubber pad 3 is fixed to the bottom edge of the LED lamp body 1. When the lamp is installed on the vehicle body surface, the rubber pad is deformed by pressure, filling the tiny gap between the lamp body and the vehicle body to prevent rainwater from seeping in from the bottom edge. At the same time, double-sided tape is used to fix the rubber pad 3 to the vehicle body surface, further enhancing the installation stability of the LED lamp body 1.
[0041] The return spring 6 ensures that the suction cup 19 always maintains its adsorption force on the vehicle body surface. Even if the vehicle body vibrates or deforms slightly, the elastic deformation of the spring can buffer the stress and prevent the seal from tearing due to rigid connection.
[0042] Six symmetrical suction cups 19 are evenly distributed at the bottom of the lamp body, providing balanced adsorption force and preventing the sealing structure from shifting due to uneven force on one side, while also facilitating quick assembly and disassembly.
[0043] The heat sink 2 is made of aluminum alloy. By increasing the surface area, it accelerates the heat conduction of the LED beads, avoids the high temperature inside the lamp body causing the sealing gaskets such as rubber and silicone to age and harden, and indirectly extends the service life of the waterproof structure.
[0044] If the second sealing gasket 12 cracks due to aging after long-term use, the outer first sealing gasket 9 and the third sealing gasket 16 can still form a backup protection, greatly reducing the risk of water leakage and realizing a safe design of "multi-layer protection and layer-by-layer failure redundancy".
[0045] Furthermore, the first rain shield 7 forms a first liquid seal through the second sealing gasket 12, preventing rainwater from seeping in from the top gap; the first sealing gasket 9 between the connecting plate 10 and the first rain shield 7 forms an elastic buffer layer between the two rain shields, absorbing the micro-deformation of the structure caused by vehicle vibration and avoiding sealing failure caused by hard contact; the second rain shield 8 covers the outside of the first rain shield, and forms an outer physical barrier through the cooperation of the third sealing gasket 16 and the second limiting groove 15, forming a "layer-by-layer failure redundancy" mechanism, which reduces the risk of waterproof failure of the lamp during long-term use. Compared with the "one failure, all failures" mode of the traditional single-layer structure, the reliability is significantly improved.
[0046] Structural Description: LED Light Body 1: Internally integrates a removable battery, LED beads, and control components to provide lighting function;
[0047] A first limiting groove 11 and a second limiting groove 15 are provided on the outer side for corresponding installation of the first and second rain shields and forming a sealed interface;
[0048] The rubber pad 3 at the bottom edge is attached to the surface of the vehicle body to block the bottom seepage path;
[0049] First rain cover 7: The first limiting groove 11 is embedded in the LED light body and fixed by six first bolts 13 to form an inner physical barrier;
[0050] The second sealing gasket 12 between the limiting groove and the top gap provides a first layer of liquid seal to prevent water leakage from the top gap.
[0051] The silicone gasket 14 at the bolt connection seals the threaded hole to prevent water from entering through the bolt hole;
[0052] Second rain cover 8: It is fitted on the outside of the first rain cover 7, embedded in the second limiting groove 15 and fixed by six second bolts 17 to form an outer physical barrier to withstand rainwater impact.
[0053] The third sealing gasket 16 between the limiting groove and the outer sealing layer provides an outer seal, which, together with the inner sealing gasket, forms double waterproofing.
[0054] The second silicone gasket 18 at the bolt connection seals the outer threaded hole, eliminating the risk of water leakage;
[0055] Connecting plate 10 and first sealing gasket 9: Connecting plate 10 is fixed to the inside of the second rain cover and connects the inner and outer rain covers;
[0056] The first sealing gasket 9 is filled between the connecting plate and the first rain cover to form a middle elastic buffer layer, which absorbs the micro-deformation of the structure caused by vehicle vibration and avoids hard contact that would damage the seal.
[0057] Rubber pad 3: Made of highly elastic material, it deforms under pressure during installation to fill the tiny gap between the lamp body and the vehicle body. It is fixed with double-sided tape to form a double seal of "compression + adhesive" to prevent capillary water seepage at the bottom edge.
[0058] Fixed cylinder 4: Provides a sliding track for suction cup connecting rod 5 and supports return spring 6;
[0059] Return spring 6: Maintains the suction cup 19's continuous adsorption force on the vehicle body surface and buffers the amplitude of vehicle vibration, preventing the seals from tearing due to rigid connection;
[0060] Suction Cup 19: There are six sets of suction cups symmetrically distributed on the bottom, providing balanced suction force, supporting quick installation and removal by pressing to absorb / remove, and adapting to curved vehicle body installation;
[0061] Heat sink 2: Made of aluminum alloy, significantly increasing the surface area, accelerating the heat dissipation of LED beads, delaying the aging of the sealing gasket, and improving the temperature resistance of the rubber / silicone.
[0062] Second sealing gasket 12: fills the gap between the first rain cover and the lamp body to form an inner precision seal;
[0063] Third sealing gasket 16: fills the gap between the second rain cover and the lamp body to form an outer basic seal;
[0064] The second sealing gasket 12 and the third sealing gasket 16 work together with the first sealing gasket 9 to construct a three-layer waterproof system of "inner layer sealing + middle layer buffer + outer layer protection", achieving "layer-by-layer failure redundancy" and improving waterproof reliability.
[0065] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A multi-layer waterproof LED small light for vehicles, characterized in that: The LED lamp body (1) includes a removable battery, LED beads and corresponding control components installed inside the LED lamp body (1). A waterproof component is provided on the LED lamp body (1). The waterproof component includes a first rain cover (7). The first rain cover (7) is provided on the upper end of the LED lamp body (1). A first limiting groove (11) is provided on the surface of the LED lamp body (1). A second sealing gasket (12) for sealing the LED lamp body (1) and the first rain cover (7) is installed on the inner side of the first limiting groove (11). The first rain cover (7) is snapped into the first limiting groove (11). Six first bolts (13) are connected to the internal thread of the first rain cover (7). The first rain cover (7) and the LED lamp body (1) are fixed together by the six first bolts (13). The upper end of the LED lamp body (1) is provided with a second rain cover (8). The second rain cover (8) is located outside the first rain cover (7). The surface of the LED lamp body (1) is provided with a second limiting groove (15). The second rain cover (8) is engaged with the second limiting groove (15). The inside of the second limiting groove (15) is installed a third sealing gasket (16) for sealing the LED lamp body (1) and the second rain cover (8). The inside of the second rain cover (8) is connected with six second bolts (17). The second rain cover (8) and the LED lamp body (1) are fixed together by the six second bolts (17).
2. The multi-layer waterproof LED small light for vehicles according to claim 1, characterized in that: The waterproof component also includes a connecting plate (10), which is fixedly connected to the inner side of the second rain cover (8), and a first sealing gasket (9) is provided between the connecting plate (10) and the first rain cover (7).
3. The multi-layer waterproof LED small light for vehicles according to claim 1, characterized in that: A rubber pad (3) is fixedly connected to the bottom edge of the LED lamp body (1).
4. The multi-layer waterproof LED small light for vehicles according to claim 1, characterized in that: The bottom of the LED lamp body (1) is fixedly connected to a fixed cylinder (4), and a suction cup connecting rod (5) is slidably connected inside the fixed cylinder (4). A reset spring (6) is provided inside the fixed cylinder (4), and the upper and lower ends of the reset spring (6) are fixedly connected to the LED lamp body (1) and the suction cup connecting rod (5) respectively. A suction cup (19) is fixedly connected to the lower end of the suction cup connecting rod (5).
5. A multi-layer waterproof LED small light for vehicles according to claim 4, characterized in that: The number of the fixed cylinder (4), suction cup connecting rod (5), reset spring (6) and suction cup (19) are all six, which are symmetrically arranged at the lower end of the LED lamp body (1).
6. A multi-layer waterproof LED small light for vehicles according to claim 1 or 2, characterized in that: Silicone gaskets (14) for sealing the first bolts (13) and the first rain cover (7) are installed at the connection points of the six first bolts (13) and the first rain cover (7).
7. A multi-layer waterproof LED small light for vehicles according to claim 1 or 2, characterized in that: Each of the six second bolts (17) and the second rain cover (8) is fitted with a second silicone pad (18) for sealing the second bolts (17) and the second rain cover (8).
8. A multi-layer waterproof LED small light for vehicles according to claim 1, characterized in that: Two heat sinks (2) are fixedly connected to the outer surface of the LED lamp body (1).