Car lamp anti-fog device and car lamp structure

Abstract

The utility model provides a car lamp anti-fog device and a car lamp structure, the car lamp anti-fog device comprises a base, the base is provided with a first airflow interaction channel used for being communicated with a car lamp space of the car lamp structure, and the installation side of the base is provided with a second airflow interaction channel communicated with the first airflow interaction channel; the ventilation assembly is arranged on the mounting side, and the ventilation assembly is provided with a third airflow interaction channel matched with the second airflow interaction channel; and in the process that the gas enters the automobile lamp space, the gas sequentially passes through the third gas flow interaction channel, the second gas flow interaction channel and the first gas flow interaction channel. The automobile lamp solves the technical problems that an air inlet pipe of an existing automobile lamp is a straight-through pipe, so that gas in the external environment can directly enter the automobile lamp, the inner surface of the automobile lamp is fogged and condensed, and the lighting effect is affected.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and more specifically, to a vehicle headlight anti-fog device and a vehicle headlight structure. Background Technology

[0002] Car headlights typically have ventilation components to balance the pressure difference between the inside and outside of the headlight, and moisture in the inside and outside of the headlight also flows between them through the ventilation components.

[0003] However, the air intake pipe of the existing automotive headlight ventilation component is a straight pipe, which allows air from the external environment to directly enter the headlight, causing fogging and condensation to form on the inner surface of the headlight and affecting the lighting effect. Utility Model Content

[0004] The technical problem solved by this utility model is that the air intake pipe of the existing automotive headlight ventilation component is a straight pipe, which allows gas from the external environment to directly enter the headlight, causing fogging and condensation on the inner surface of the headlight and affecting the lighting effect.

[0005] To address the aforementioned problems, this utility model provides a vehicle headlight defogging device, which is used in conjunction with a vehicle headlight structure. The vehicle headlight defogging device includes: a base, which has a first airflow interaction channel for connecting the headlight space of the headlight structure, and a second airflow interaction channel connected to the first airflow interaction channel on the mounting side of the base; and a ventilation component, which is disposed on the mounting side and has a third airflow interaction channel that cooperates with the second airflow interaction channel. During the process of gas entering the headlight space, the gas sequentially passes through the third airflow interaction channel, the second airflow interaction channel, and the first airflow interaction channel.

[0006] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: by adding a ventilation component and a second airflow interaction channel adapted to the ventilation component to the vehicle headlight anti-fog device, the aforementioned situation of gas directly entering the interior of the vehicle headlight through the first airflow interaction channel is effectively prevented. This reduces the flow rate of gas entering the interior of the vehicle headlight, thereby prolonging the time for gas to enter the interior of the vehicle headlight, and ultimately reducing the probability of fogging and condensation inside the vehicle headlight.

[0007] In one embodiment of this utility model, the second airflow interaction channel is provided with a first airflow sink; the first airflow sink is formed on the base and is interconnected with the first airflow interaction channel; the third airflow interaction channel is connected to the first airflow interaction channel through the first airflow sink.

[0008] In one embodiment of this utility model, the second airflow interaction channel is further provided with a second airflow sink; the second airflow sink is formed on the circumferential position of the base surrounding the first airflow interaction channel; the first airflow sink is located at the end of the second airflow sink away from the first airflow interaction channel, and the third airflow interaction channel is connected to the second airflow sink through the first airflow sink.

[0009] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: Compared with the technical means of simply setting a third airflow interaction channel in the ventilation component, this technical solution also has a groove structure on the surface of the base and the ventilation component opposite to each other, which further prolongs the time for gas to enter the interior of the headlight, thereby further improving the effect of preventing fogging and condensation inside the headlight.

[0010] In one embodiment of this utility model, when the second airflow interaction channel is provided with a second airflow trough, the first airflow trough includes an arc-shaped portion and / or a straight portion.

[0011] Compared with existing technologies, the technical effects achieved by this solution are as follows: In a specific example, the first airflow groove can be an arc-shaped section. Due to the arc shape, compared to a straight section, it can further reduce the flow velocity of the gas within it, thereby further extending the time it takes for the gas to enter the headlight. Of course, the first airflow groove can also be a combination of an arc-shaped section and a straight section, which will not be elaborated upon here.

[0012] In one embodiment of this utility model, the ventilation assembly includes: a ventilation component, which is disposed on the mounting side, and a third airflow interaction channel is coiled around the ventilation component on the side near the base; and a ventilation valve plate, which is sandwiched between the ventilation component and the base, for connecting or separating the third airflow interaction channel and the second airflow interaction channel.

[0013] Compared to existing technologies, the technical effects achieved by this solution are as follows: The third airflow interaction channel on the ventilation component is specifically manifested as a labyrinth structure, while the valve port of the ventilation valve plate is cross-shaped and made of silicone. When this anti-fog device is installed in the headlight structure, under positive pressure inside the headlight structure, the valve port of the ventilation valve plate opens, allowing gas inside the headlight structure to be expelled outside the headlight (external environment). When negative pressure inside the headlight structure, the valve port opens, allowing gas outside the headlight structure to enter the second airflow interaction channel via the ventilation valve plate, and finally enter the headlight structure through the first airflow interaction channel, achieving pressure balance. The labyrinth structure prevents gas from the external environment from directly entering the headlight structure, reducing the gas entry speed and thus extending the time it takes for gas from the external environment to enter the headlight structure.

[0014] In one embodiment of this utility model, the ventilation component is provided with an air inlet that is connected to one end of the third airflow interaction channel; the ventilation component is provided with a receiving trough that is connected to the other end of the third airflow interaction channel; wherein, the receiving trough is arranged opposite to the valve port of the ventilation valve plate.

[0015] Compared with existing technologies, the technical effects achieved by this solution are as follows: To ensure the smooth opening of the venting valve, space needs to be reserved for it. Specifically, according to this solution, a recessed groove is used to accommodate the valve when it is open, preventing the valve from being obstructed and unable to open smoothly when there is a pressure difference between the inside and outside of the headlight structure. Specifically, as gas is expelled from the headlight space to the external environment, the valve opens towards the recessed groove; conversely, when gas is introduced into the headlight space from the external environment, the valve opens towards the second airflow interaction channel, which then serves to accommodate the valve.

[0016] In one embodiment of this utility model, a handle structure is provided on the mounting side of the base, and the handle structure is arranged adjacent to the ventilation component; wherein, the handle structure is used to remove the ventilation component from the base.

[0017] Compared with existing technologies, the technical effect achieved by adopting this technical solution is that by setting a handle structure, the efficiency of disassembling the ventilation component from the base is improved.

[0018] In one embodiment of this utility model, the base has a mounting groove for containing desiccant on the side away from the ventilation component; the vehicle headlight anti-fog device also includes a top cover that covers the mounting groove, and the top cover has multiple ventilation holes communicating with the mounting groove; wherein, the top cover is snapped into the base.

[0019] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the top cover and the base are connected by a snap-fit ​​mechanism, which reduces the difficulty of disassembling and assembling the top cover.

[0020] In one embodiment of this utility model, the edge of the top cover is provided with a locking protrusion structure; the base is provided with a locking groove that mates with the locking protrusion structure; wherein, when the locking protrusion structure mates with the locking groove, the rotation of the top cover relative to the base is restricted.

[0021] Compared with existing technologies, the technical effect achieved by this technical solution is that the stability of the top cover installed on the base is improved through the mutual cooperation between the locking protrusion structure and the locking groove.

[0022] In one embodiment of this utility model, the vehicle headlight anti-fog device further includes a waterproof and breathable membrane; the waterproof and breathable membrane covers one end of the base near the top cover; and / or, the waterproof and breathable membrane is disposed on the side of the ventilation assembly away from the base.

[0023] Compared with existing technologies, the technical effects achieved by this solution are as follows: Specifically, when the waterproof and breathable membrane covers the end of the base near the top cover, it can, on the one hand, seal the desiccant into the mounting groove, preventing it from scattering inside the headlight. It should be noted that the desiccant here can be a powdered desiccant or a desiccant product containing packaging materials, which will not be elaborated here; on the other hand, it can prevent moisture from entering the mounting groove, thereby extending the time before the desiccant deteriorates and extending its service life. Conversely, when the waterproof and breathable membrane is placed on the side of the ventilation component away from the base, it can reduce the entry of moisture from the external environment into the headlight anti-fog device.

[0024] On the other hand, this utility model also provides a vehicle lamp structure, including: a vehicle lamp anti-fog device as in any of the above examples; a sealing ring, the sealing ring being sleeved on the outer surface of the base; a vehicle lamp housing, the rear end of the vehicle lamp housing having an installation opening; wherein, when the vehicle lamp anti-fog device is installed to the vehicle lamp housing through the installation opening, the sealing ring is sandwiched between the vehicle lamp anti-fog device and the vehicle lamp housing.

[0025] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the corresponding technical effects as in any of the above technical solutions, which will not be elaborated here.

[0026] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0027] (1) By adding a ventilation component and a second airflow interaction channel adapted to the ventilation component to the vehicle headlight anti-fog device, the above-mentioned situation of gas directly entering the vehicle headlight through the first airflow interaction channel is effectively prevented, thereby reducing the flow rate of gas entering the vehicle headlight and extending the time of gas entering the vehicle headlight, ultimately reducing the probability of fogging and condensation inside the vehicle headlight.

[0028] (2) Compared with the technical means of setting a third airflow interaction channel in the ventilation component, this technical solution also has a groove structure on the surface of the base and the ventilation component opposite to each other, which further prolongs the time for gas to enter the interior of the headlight, thereby further improving the effect of preventing fogging and condensation inside the headlight.

[0029] (3) To ensure that the valve port of the ventilation valve plate can open smoothly, space needs to be reserved for it. Specifically, in accordance with the content of this technical solution, the receiving groove is used to accommodate the valve port in the open state, so as to avoid the valve port being blocked and unable to open smoothly when there is a pressure difference between the inside and outside of the headlight structure. Specifically, when the gas is discharged from the headlight space to the external environment, the valve port opens towards the receiving groove; conversely, when the gas is introduced into the headlight space from the external environment, the valve port opens towards the second airflow interaction channel, that is, the second airflow interaction channel plays the role of accommodating the valve port. Thus, with the cooperation of the second airflow interaction channel and the receiving groove, the valve port of the ventilation valve plate can be opened smoothly. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the structure of a vehicle headlight anti-fog device provided in an embodiment of this utility model;

[0032] Figure 2 for Figure 1 A schematic diagram of a localized explosion structure from another perspective;

[0033] Figure 3 for Figure 2 A schematic diagram of the ventilation component from another perspective;

[0034] Figure 4 for Figure 1 A structural diagram from another perspective;

[0035] Figure 5 for Figure 4 A cross-sectional view along the AA direction;

[0036] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0037] Figure 7 This is a schematic diagram showing the fit between the ventilation assembly and the handle structure;

[0038] Figure 8 for Figure 1 A schematic diagram of the partial explosion structure from another perspective, behind the hidden sealing ring.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Headlight defogging device; 10. Base; 11. First airflow interaction channel; 12. Second airflow interaction channel; 121. First airflow recess; 122. Second airflow recess; 13. Handle structure; 14. Mounting slot; 15. Engaging slot; 20. Ventilation assembly; 21. Ventilation component; 211. Third airflow interaction channel; 212. Air inlet; 213. Receiving recess; 22. Ventilation valve plate; 221. Valve port; 30. Top cover; 31. Vent hole; 32. Engaging protrusion structure; 40. Waterproof and breathable membrane;

[0041] 200. Sealing ring. Detailed Implementation

[0042] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0043] See Figure 1 This is a structural schematic diagram of a vehicle headlight anti-fog device 100 provided in an embodiment of this utility model. Specifically, in conjunction with... Figures 2-8 The vehicle headlight defogging device 100 is used to cooperate with the vehicle headlight structure, and the vehicle headlight defogging device 100 includes, for example, a base 10 and a ventilation assembly 20; the base 10 is provided with a first airflow interaction channel 11 for connecting the headlight space of the headlight structure, and the mounting side of the base 10 is provided with a second airflow interaction channel 12 that communicates with the first airflow interaction channel 11; the ventilation assembly 20 is disposed on the mounting side, and the ventilation assembly 20 is provided with a third airflow interaction channel 211 that cooperates with the second airflow interaction channel 12; wherein, during the process of gas entering the headlight space, the gas passes through the third airflow interaction channel 211, the second airflow interaction channel 12 and the first airflow interaction channel 11 in sequence.

[0044] Specifically, in related technologies, since the air intake pipe is a straight pipe, which corresponds to the first airflow interaction channel 11 in this technical solution, the gas in the external environment directly enters the interior of the headlight through the first airflow interaction channel 11, which easily causes fogging and condensation to occur on the inner surface of the car headlight.

[0045] Therefore, in order to solve the above problems, by adding a ventilation component 20 and a second airflow interaction channel 12 adapted to the ventilation component 20 to the headlight defogging device 100, the aforementioned situation of gas directly entering the headlight through the first airflow interaction channel 11 is effectively prevented, thereby reducing the flow rate of gas entering the headlight and extending the time for gas to enter the headlight, ultimately reducing the probability of fogging and condensation inside the headlight.

[0046] Preferably, in a specific example, the second airflow interaction channel 12 is provided with a first airflow sink 121; the first airflow sink 121 is formed on the base 10 and is connected to the first airflow interaction channel 11; the third airflow interaction channel 211 is connected to the first airflow interaction channel 11 through the first airflow sink 121.

[0047] Furthermore, the second airflow interaction channel 12 is provided with a second airflow sink 122 that communicates with the first airflow sink 121; the second airflow sink 122 is formed on the base 10 around the first airflow interaction channel 11 in a circumferential position; the first airflow sink 121 is located at the end of the second airflow sink 122 away from the first airflow interaction channel 11, and the third airflow interaction channel 211 communicates with the second airflow sink 122 through the first airflow sink 121.

[0048] In a specific example, the second airflow interaction channel 12 is manifested as a recessed structure on the mounting side of the base 10. The vent structure formed by the first airflow interaction channel 11 on the mounting side is located on the recessed structure. This allows gas introduced into the second airflow interaction channel 12 by the ventilation assembly 20 to first pass through the first airflow recessed section 121, then be guided by the first airflow recessed section 121 to the connected second airflow recessed section 122, and then be guided by the second airflow recessed section 122 into the vent structure. Finally, the gas is introduced into the headlight by the first airflow interaction channel 11. Therefore, compared to the technical means of simply setting a third airflow interaction channel 211 in the ventilation assembly 20, this technical solution also provides a recessed structure on the surface of the base 10 opposite to the ventilation assembly 20, further extending the time for gas to enter the headlight, thereby further improving the effect of preventing fogging and condensation inside the headlight.

[0049] Preferably, when the second airflow interaction channel 12 is provided with a second airflow sink 122, the first airflow sink 121 includes an arc-shaped portion and / or a straight portion.

[0050] In a specific example, the first airflow recess 121 can be an arc-shaped portion. Due to the arc shape, compared to a straight portion, the flow velocity of the gas within it can be further reduced, thereby extending the time the gas spends inside the headlight. Of course, the first airflow recess 121 can also be a combination of an arc-shaped portion and a straight portion, which will not be elaborated upon here.

[0051] Preferably, the ventilation assembly 20 includes, for example, a ventilation element 21 and a ventilation valve 22. The ventilation element 21 is located on the mounting side, and the third airflow interaction channel 211 is coiled around the ventilation element 21 on the side near the base 10; the ventilation valve 22 is sandwiched between the ventilation element 21 and the base 10, and is used to connect or separate the third airflow interaction channel 211 and the second airflow interaction channel 12.

[0052] For example, the third airflow interaction channel 211 on the ventilation component 21 is specifically a labyrinth structure, while the valve port 221 of the ventilation valve plate 22 is cross-shaped and made of silicone. In the assembly scenario where the headlight anti-fog device 100 is installed on the headlight structure, when the interior of the headlight structure is under positive pressure, the valve port 221 of the ventilation valve plate 22 opens, allowing the gas inside the headlight structure to be expelled outside the headlight (external environment). When the interior of the headlight structure is under negative pressure, the valve port 221 opens, allowing the gas outside the headlight structure to enter the second airflow interaction channel 12 via the ventilation valve plate 22, and finally enter the headlight structure through the first airflow interaction channel 11, achieving pressure balance. The use of the labyrinth structure prevents gas from the external environment from directly entering the headlight structure, reducing the gas entry speed and thus extending the time it takes for gas from the external environment to enter the headlight structure.

[0053] Preferably, the ventilation component 21 is provided with an air inlet 212 that communicates with one end of the third airflow interaction channel 211; the ventilation component 21 is provided with a receiving groove 213 that communicates with the other end of the third airflow interaction channel 211; wherein, the receiving groove 213 is arranged opposite to the valve port 221 of the ventilation valve plate 22.

[0054] As mentioned above, the ventilator 22 is made of silicone, so to ensure that its valve port 221 can open smoothly, space needs to be reserved for it. Specifically, according to the technical solution, the receiving groove 213 is used to receive the valve port 221 in the open state, so as to avoid the valve port 221 being blocked from opening smoothly when there is a pressure difference between the inside and outside of the headlight structure. Specifically, when gas is discharged from the headlight space to the external environment, the valve port 221 opens towards the receiving groove 213; conversely, when gas is introduced into the headlight space from the external environment, the valve port 221 opens towards the second airflow interaction channel 12, that is, the second airflow interaction channel 12 plays the role of receiving the valve port 221.

[0055] Preferably, the base 10 has a handle structure 13 on the mounting side, and the handle structure 13 is arranged adjacent to the ventilation component 20; wherein, the handle structure 13 is used to remove the ventilation component 20 from the base 10. For example, the handle structure 13 is a recessed groove, and the user can remove the ventilation component 20 by placing their fingers or tools in the recessed groove.

[0056] Preferably, the base 10 has a mounting groove 14 for holding desiccant on the side away from the ventilation assembly 20; the headlight defogging device 100 also includes a top cover 30 that covers the mounting groove 14, and the top cover 30 has multiple vent holes 31 communicating with the mounting groove 14; wherein, the top cover 30 is snapped into the base 10. The snap-fit ​​engagement between the top cover 30 and the base 10 reduces the difficulty of disassembling and assembling the top cover 30.

[0057] Preferably, the top cover 30 has a locking protrusion 32 at its edge; the base 10 has a locking groove 15 that mates with the locking protrusion 32; wherein, when the locking protrusion 32 mates with the locking groove 15, the rotation of the top cover 30 relative to the base 10 is restricted. The mutual cooperation between the locking protrusion 32 and the locking groove 15 improves the stability of the top cover 30 when installed on the base 10.

[0058] Preferably, the headlight defogging device 100 further includes a waterproof and breathable membrane 40; the waterproof and breathable membrane 40 covers one end of the base 10 near the top cover 30; and / or, the waterproof and breathable membrane 40 is disposed on the side of the ventilation assembly 20 away from the base 10.

[0059] Specifically, when the waterproof and breathable membrane 40 covers the end of the base 10 near the top cover 30, it can seal the desiccant into the mounting groove 14, preventing it from scattering inside the headlight. It should be noted that the desiccant here can be a powdered desiccant or a desiccant product containing packaging materials, which will not be elaborated here. On the other hand, it can prevent moisture from entering the mounting groove 14, thereby extending the time before the desiccant deteriorates and extending its service life. Conversely, when the waterproof and breathable membrane 40 is placed on the side of the ventilation assembly 20 away from the base 10, it can reduce the amount of moisture from the external environment entering the headlight anti-fog device 100.

[0060] On the other hand, this utility model also provides a vehicle lamp structure. Specifically, the vehicle lamp structure includes, for example, a vehicle lamp housing, a sealing ring 200, and a vehicle lamp anti-fog device 100 as described in the above example; the sealing ring 200 is sleeved on the outer surface of the base 10; the rear end of the vehicle lamp housing has an installation opening; wherein, when the vehicle lamp anti-fog device 100 is installed to the vehicle lamp housing through the installation opening, the sealing ring 200 is sandwiched between the vehicle lamp anti-fog device 100 and the vehicle lamp housing. In this embodiment, the technical effects corresponding to any of the above technical solutions can be achieved, and will not be elaborated further here.

[0061] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A vehicle headlight anti-fog device, wherein the vehicle headlight anti-fog device is used in conjunction with a vehicle headlight structure; characterized in that, The vehicle headlight anti-fog device includes: The base (10) is provided with a first airflow interaction channel (11) for connecting the lamp space of the lamp structure, and the mounting side of the base (10) is provided with a second airflow interaction channel (12) connected to the first airflow interaction channel (11). A ventilation assembly (20) is provided on the installation side, and the ventilation assembly (20) is provided with a third airflow interaction channel (211) that cooperates with the second airflow interaction channel (12); During the process of gas entering the headlight space, the gas passes through the third airflow interaction channel (211), the second airflow interaction channel (12), and the first airflow interaction channel (11) in sequence.

2. The vehicle headlight anti-fog device according to claim 1, characterized in that, The second airflow interaction channel (12) is provided with a first airflow sink (121); The first airflow sink (121) is formed on the base (10), and the first airflow sink (121) is interconnected with the first airflow interaction channel (11); The third airflow interaction channel (211) is connected to the first airflow interaction channel (11) through the first airflow sink (121).

3. The vehicle headlight anti-fog device according to claim 2, characterized in that, The second airflow interaction channel (12) is also provided with a second airflow sink (122). The second airflow sink (122) is formed on the base (10) around the first airflow interaction channel (11) in the circumferential position; The first airflow sink (121) is located at one end of the second airflow sink (122) away from the first airflow interaction channel (11), and the third airflow interaction channel (211) is connected to the second airflow sink (122) through the first airflow sink (121).

4. The vehicle headlight defogging device according to any one of claims 1-3, characterized in that, The ventilation assembly (20) includes: Ventilation component (21), the ventilation component (21) is provided on the mounting side, and the third airflow interaction channel (211) is arranged in a coiled manner on the side of the ventilation component (21) near the base (10); An air exchange valve (22) is sandwiched between the air exchange component (21) and the base (10) to connect or separate the third airflow interaction channel (211) and the second airflow interaction channel (12).

5. The vehicle headlight anti-fog device according to claim 4, characterized in that, The ventilation component (21) is provided with an air inlet (212) that is connected to one end of the third airflow interaction channel (211); The ventilation component (21) is provided with a receiving trough (213) that is connected to the other end of the third airflow interaction channel (211); The receiving trough (213) is arranged opposite to the valve port (221) of the ventilation valve plate (22).

6. The vehicle headlight anti-fog device according to claim 4, characterized in that, The base (10) is provided with a handle structure (13) at the position corresponding to the mounting side, and the handle structure (13) is arranged adjacent to the ventilation component (20); The handle structure (13) is used to remove the ventilation assembly (20) from the base (10).

7. The vehicle headlight anti-fog device according to claim 1, characterized in that, The base (10) has a mounting groove (14) for holding desiccant on the side away from the ventilation assembly (20); The vehicle headlight anti-fog device also includes a top cover (30) that covers the mounting groove (14), and the top cover (30) has a plurality of vent holes (31) that communicate with the mounting groove (14); The top cover (30) is snapped into the base (10).

8. The vehicle headlight anti-fog device according to claim 7, characterized in that, The top cover (30) is provided with a locking protrusion structure (32) at the edge position; The base (10) is provided with a locking groove (15) that mates with the locking protrusion structure (32); When the engaging protrusion (32) engages with the engaging groove (15), it restricts the top cover (30) from rotating relative to the base (10).

9. The vehicle headlight anti-fog device according to claim 7, characterized in that, The vehicle headlight anti-fog device also includes a waterproof and breathable membrane (40); The waterproof and breathable membrane (40) covers one end of the base (10) near the top cover (30); and / or, the waterproof and breathable membrane (40) is disposed on the side of the ventilation assembly (20) away from the base (10).

10. A vehicle lamp structure, characterized in that, include: The vehicle headlight defogging device as described in any one of claims 1-9; A sealing ring (200) is fitted onto the outer surface of the base (10); The headlight housing has an installation opening at its rear end; When the vehicle lamp anti-fog device is installed onto the vehicle lamp housing through the installation opening, the sealing ring (200) is sandwiched between the vehicle lamp anti-fog device and the vehicle lamp housing.

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