A waterproof structure for electric vehicle headlights

Abstract

This utility model discloses a waterproof structure for electric vehicle headlights, belonging to the field of electric vehicle headlight technology. The waterproof structure includes a limiting and locking assembly comprising a front ring plate and a rear ring plate, which are respectively fixedly installed on the front and rear headlight housings. An ear plate is fixedly installed on the outer wall of the front ring plate, and the ear plate is locked to the outer wall of the rear ring plate. An auxiliary reinforcement assembly is set on the front and rear ring plates, and works with the ear plate to limit the movement of the front and rear ring plates. A U-shaped groove in the front ring plate, combined with a hollow sealing ring, allows the sealing ring to expand directionally, ensuring a tight fit with the front and rear ring plates and forming a highly efficient sealing surface. Simultaneously, a limiting strip on the inner wall of the ear plate engages with a groove in the rear ring plate, and with the elastic pre-tightening of bolts and springs, multiple structures work together to prevent rainwater infiltration.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle lights, and more specifically, to a waterproof structure for electric vehicle lights. Background Technology

[0002] Currently, as a key lighting component during riding, the waterproof performance of electric vehicle lights directly affects their safety and lifespan.

[0003] Existing electric vehicle headlights mostly use simple snap-fit ​​or bolt connections for sealing the front and rear lamp housings. With prolonged use, simple snap-fit ​​structures are prone to reduced pre-tightening force due to vibration and aging, resulting in insufficient compression of the sealing ring and allowing rainwater to seep in through gaps. While bolt connections offer better sealing, they suffer from low assembly efficiency, and gaps can easily form between the bolts and the housing due to thermal expansion and contraction, leading to waterproofing failure. Furthermore, the traditional design of the sealing ring and groove is often flawed, frequently resulting in sealing ring displacement and disordered bulging directions, further reducing waterproofing effectiveness. Therefore, inventing a waterproof structure for electric vehicle headlights to address these issues has become a pressing problem for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a waterproof structure for electric vehicle lights, aiming to improve the problems of existing electric vehicle lights where the front and rear lamp housings rely solely on a snap-fit ​​structure, which easily leads to a decrease in pre-tightening force after long-term use, and the bolt connection is prone to gaps due to thermal expansion and contraction, resulting in waterproof failure.

[0005] This utility model is implemented as follows: a waterproof structure for an electric vehicle headlight, comprising... The vehicle lamp body includes a front lamp housing and a rear lamp housing; a waterproof sealing structure includes a limiting and locking assembly and an auxiliary reinforcement assembly. The limiting and locking assembly includes a front ring plate and a rear ring plate, which are respectively fixedly installed on the front lamp housing and the rear lamp housing. An ear plate is fixedly installed on the outer wall of the front ring plate, and the ear plate is limited and locked to the outer wall of the rear ring plate. The auxiliary reinforcement assembly is disposed on the front ring plate and the rear ring plate, and the auxiliary reinforcement assembly cooperates with the ear plate to limit the front ring plate and the rear ring plate.

[0006] In a preferred embodiment of this utility model, the front ring plate is fixedly installed on the outer wall of the end of the front lamp housing, the rear ring plate is fixedly installed on the outer wall of the end of the rear lamp housing, and multiple sets of ear plates are equally and vertically arranged on the outer wall of the front ring plate, and the multiple sets of ear plates are respectively limited and engaged with the outer wall of the rear ring plate.

[0007] In a preferred embodiment of this utility model, a limiting strip is fixedly installed on the inner wall of the ear plate, and the limiting strip is equally distributed on the inner wall of the ear plate. A slot is provided on the outer wall of the rear ring plate, and the slot is respectively provided with corresponding limiting strips on the inner wall of the ear plate.

[0008] In a preferred embodiment of this utility model, an annular groove is formed on the side of the front annular plate near the rear annular plate, and a sealing ring is provided in the annular groove, with the sealing ring located between the front annular plate and the rear annular plate.

[0009] In a preferred embodiment of this utility model, the annular groove is U-shaped, the width of the annular groove is 0.2-0.4 mm larger than the outer diameter of the sealing ring, and the groove depth is 40%-50% of the outer diameter of the sealing ring.

[0010] In a preferred embodiment of this utility model, the sealing ring is hollow.

[0011] In a preferred embodiment of this utility model, the auxiliary reinforcement component includes a bolt, which passes through the rear ring plate and is threadedly connected to the front ring plate.

[0012] In a preferred embodiment of this utility model, a mounting post is fixedly connected to the outer wall of the rear ring plate, and a threaded plate is fixedly connected to the outer wall of the front ring plate. The end of the bolt passes through the mounting post and is threadedly connected to the threaded plate.

[0013] In a preferred embodiment of this utility model, a disc-shaped limiting plate is provided at the tail of the bolt, and a cross groove is provided above the limiting plate.

[0014] In a preferred embodiment of this utility model, a spring is sleeved on the outer wall of the bolt, and the spring is located between the disc and the mounting post.

[0015] The beneficial effects of this utility model are as follows: The waterproof structure of the electric vehicle headlight obtained by the above design has strong sealing reliability during use: the U-shaped groove opened in the front ring plate is matched with the hollow sealing ring. The width of the groove is 0.2-0.4mm larger than the outer diameter of the sealing ring, and the groove depth is 40%-50% of the outer diameter. This can guide the sealing ring to expand in a specific direction, ensuring a tight fit with the front and rear ring plates to form a highly efficient sealing surface. At the same time, the limiting strip on the inner wall of the ear plate is engaged with the groove of the rear ring plate. Combined with the elastic pre-tightening of the bolts and springs, the multiple structures work together to prevent rainwater from seeping in.

[0016] High structural stability: The limiting snap-fit ​​between the ear plate and the rear ring plate achieves initial fixation, the bolts of the auxiliary reinforcement components pass through the mounting column and connect to the threaded plate, and the spring can compensate for the gap caused by thermal expansion and contraction, avoid loosening caused by long-term vibration, and ensure that the connection of each component is stable.

[0017] Assembly efficiency optimization: Multiple sets of ear plates are equally distributed, which can quickly realize the positioning and snapping of the front ring plate and the rear ring plate. The cross groove design of the bolts facilitates tool operation, taking into account both rapid assembly and convenient maintenance.

[0018] High adaptability: The elastic cushioning effect of the spring can cope with the bumps and vibrations during the operation of the electric vehicle, and the elastic deformation capability of the hollow sealing ring can adapt to the size changes under different temperature environments, improving the reliability of the structure under complex working conditions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of one side of the structure provided by an embodiment of the present invention; Figure 2 A schematic diagram of the disassembled structure provided for an embodiment of this utility model; Figure 3 A schematic diagram of the limiting and locking assembly structure provided for an embodiment of this utility model; Figure 4 A schematic diagram of the auxiliary reinforcement component structure provided for an embodiment of this utility model.

[0021] In the diagram: 100 - Headlight body; 110 - Front headlight housing; 120 - Rear headlight housing; 200 - Waterproof sealing structure; 210 - Limiting and locking assembly; 211 - Front ring plate; 212 - Rear ring plate; 213 - Ear plate; 214 - Limiting strip; 215 - Slot; 216 - Ring groove; 217 - Sealing ring; 220 - Auxiliary reinforcement assembly; 221 - Mounting post; 222 - Threaded plate; 223 - Bolt; 224 - Spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Please see Figure 1 and Figure 2This utility model provides a technical solution: a waterproof structure for an electric vehicle headlight, comprising... The vehicle lamp body 100 includes a front lamp housing 110 and a rear lamp housing 120; a waterproof sealing structure 200 includes a limiting and locking assembly 210 and an auxiliary reinforcement assembly 220. The limiting and locking assembly 210 includes a front ring plate 211 and a rear ring plate 212, which are respectively fixedly installed on the front lamp housing 110 and the rear lamp housing 120. An ear plate 213 is fixedly installed on the outer wall of the front ring plate 211, and the ear plate 213 is limited and locked to the outer wall of the rear ring plate 212. The auxiliary reinforcement assembly 220 is disposed on the front ring plate 211 and the rear ring plate 212. The ear plate 213 limits the front ring plate 211 and the rear ring plate 212. The U-shaped groove 216 in the front ring plate 211 works with the hollow sealing ring 217. The width of the groove 216 is 0.2-0.4mm larger than the outer diameter of the sealing ring 217, and the groove depth is 40%-50% of the outer diameter. This guides the sealing ring 217 to expand in a specific direction, ensuring a tight fit with the front ring plate 211 and the rear ring plate 212 to form a highly efficient sealing surface. At the same time, the limiting strip 214 on the inner wall of the ear plate 213 engages with the groove 215 of the rear ring plate 212. With the elastic pre-tightening of the bolt 223 and the spring 224, the multiple structures work together to prevent rainwater from seeping in.

[0024] Please see Figure 3 and Figure 4 The front ring plate 211 is fixedly installed on the outer wall of the end of the front lamp housing 110, and the rear ring plate 212 is fixedly installed on the outer wall of the end of the rear lamp housing 120. Multiple sets of ear plates 213 are equally and vertically arranged on the outer wall of the front ring plate 211. The multiple sets of ear plates 213 are respectively limited and locked to the outer wall of the rear ring plate 212. The multiple sets of ear plates 213 are locked to improve stability.

[0025] A limiting strip 214 is fixedly installed on the inner wall of the ear plate 213. The limiting strip 214 is evenly installed on the inner wall of the ear plate 213. A groove 215 is opened on the outer wall of the rear ring plate 212. The groove 215 is respectively set with the limiting strip 214 on the inner wall of the ear plate 213. The limiting strip 214 is wedge-shaped to improve the locking force and prevent slippage. A ring groove 216 is opened on the side of the front ring plate 211 near the rear ring plate 212. A sealing ring 217 is set in the ring groove 216, and the sealing ring 217 is located between the front ring plate 211 and the rear ring plate 212. The annular groove 216 is U-shaped. The width of the annular groove 216 is 0.2-0.4 mm larger than the outer diameter of the sealing ring 217, and the groove depth is 40%-50% of the outer diameter of the sealing ring. Because the sealing ring 217 is hollow, when the sealing ring 217 is compressed, one side of the sealing ring 217 is squeezed, causing the sealing ring 217 to extend to both sides for sealing and improving sealing performance. The sealing ring 217 is hollow.

[0026] The auxiliary reinforcement component 220 includes bolts 223, which pass through the rear ring plate 212 and are threadedly connected to the front ring plate 211. Bolts 223 are set as needed and are used to act as a safety device; a small number are sufficient.

[0027] A mounting post 221 is fixedly connected to the outer wall of the rear ring plate 212, and a threaded plate 222 is fixedly connected to the outer wall of the front ring plate 211. The end of the bolt 223 passes through the mounting post 221 and is threadedly connected to the threaded plate 222. A disc-shaped limiting plate is provided at the tail of the bolt 223, and a cross groove is provided on the upper part of the limiting plate. The disc-shaped limiting plate is used to limit the spring 224 and facilitates disassembly. The spring 224 is sleeved on the outer wall of the bolt 223, and the spring 224 is located between the disc and the mounting post 221.

[0028] Working principle: Initial positioning and sealing: When the front lamp housing 110 and the rear lamp housing 120 are connected, the limiting strip 214 on the inner wall of the ear plate 213 of the front ring plate 211 is engaged in the groove 215 on the outer wall of the rear ring plate 212 to achieve positioning; at this time, the hollow sealing ring 217 in the annular groove 216 of the front ring plate 211 is squeezed by the front ring plate 211 and the rear ring plate 212, and expands in a directional manner due to the constraint of the annular groove 216, tightly fitting the bottom of the annular groove 216 and the surface of the rear ring plate 212 to form the first seal.

[0029] Reinforcement and anti-loosening: The bolt 223 of the auxiliary reinforcement component 220 passes through the mounting post 221 and is threadedly connected to the threaded plate 222. During the tightening process, the spring 224 is compressed and generates elastic reaction force, so that the bolt 223 always maintains the preload. The spring 224 can compensate for the gap between the front ring plate 211 and the rear ring plate 212 caused by temperature changes or vibration, ensure the tightness of the engagement between the ear plate 213 and the rear ring plate 212, and at the same time enhance the compression stability of the sealing ring 217, forming a second layer of waterproof protection.

[0030] Ease of operation: The disc-shaped limiting plate and cross groove design at the tail of bolt 223 make it easy to tighten or disassemble with tools. Combined with multiple equally distributed ear plates 213 and auxiliary reinforcement components 220, the overall structure ensures waterproof performance while taking into account assembly and maintenance efficiency.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waterproof structure for an electric vehicle headlight, characterized in that, include The vehicle lamp body includes a front lamp housing and a rear lamp housing; A waterproof sealing structure includes a limiting and locking assembly and an auxiliary reinforcement assembly. The limiting and locking assembly includes a front ring plate and a rear ring plate, which are respectively fixedly installed on the front lamp housing and the rear lamp housing. An ear plate is fixedly installed on the outer wall of the front ring plate, and the ear plate is limited and locked to the outer wall of the rear ring plate. The auxiliary reinforcement assembly is disposed on the front ring plate and the rear ring plate, and the auxiliary reinforcement assembly cooperates with the ear plate to limit the front ring plate and the rear ring plate.

2. The waterproof structure of an electric vehicle lamp according to claim 1, characterized by: The front ring plate is fixedly installed on the outer wall of the end of the front lamp housing, and the rear ring plate is fixedly installed on the outer wall of the end of the rear lamp housing. Multiple sets of ear plates are equally and vertically arranged on the outer wall of the front ring plate, and the multiple sets of ear plates are respectively limited and engaged with the outer wall of the rear ring plate.

3. The waterproof structure of an electric vehicle lamp according to claim 2, wherein: The inner wall of the ear plate is fixedly installed with a limiting strip, which is equally distributed on the inner wall of the ear plate. The outer wall of the rear ring plate is provided with a slot, which is respectively set to correspond to the limiting strip on the inner wall of the ear plate.

4. The waterproof structure of an electric vehicle lamp according to claim 2, wherein: The front ring plate has an annular groove on the side near the rear ring plate, and a sealing ring is provided in the annular groove, with the sealing ring located between the front ring plate and the rear ring plate.

5. The waterproof structure of an electric vehicle lamp according to claim 4, wherein: The annular groove is U-shaped, and its width is 0.2-0.4 mm larger than the outer diameter of the sealing ring. The groove depth is 40%-50% of the outer diameter of the sealing ring.

6. The waterproof structure of an electric vehicle lamp according to claim 4, wherein: The sealing ring is hollow.

7. The waterproof structure of an electric vehicle headlight as described in claim 1, characterized in that: The auxiliary reinforcement component includes bolts that pass through the rear ring plate and are threadedly connected to the front ring plate.

8. The waterproof structure of an electric vehicle lamp according to claim 7, wherein: A mounting post is fixedly connected to the outer wall of the rear ring plate, and a threaded plate is fixedly connected to the outer wall of the front ring plate. The end of the bolt passes through the mounting post and is threadedly connected to the threaded plate.

9. The waterproof structure of an electric vehicle lamp according to claim 8, wherein: The bolt has a disc-shaped limiting plate at its tail, and a cross groove is provided above the limiting plate.

10. The waterproof structure of an electric vehicle lamp according to claim 9, wherein: A spring is fitted onto the outer wall of the bolt, and the spring is located between the disc and the mounting post.

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