A breathable device, drying device and vehicle light
By incorporating a duckbill valve and a dustproof and waterproof device into the headlights, the problem of moisture entering the ventilation system was solved, extending the life of the desiccant and improving the lighting effect and stability of the headlights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LYNWAY VISION TECH (NB) CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-12
AI Technical Summary
In the process of venting moisture and balancing pressure, existing ventilation devices can easily allow moisture in the air to enter the headlights, which reduces the lifespan of the desiccant and affects the headlight's lighting performance.
Design a ventilation device that uses a duckbill valve and a dustproof and waterproof device. The duckbill valve opens when the headlights are on to release high-temperature and high-humidity gas, and closes when the headlights are on to prevent external gas from entering. The dustproof and waterproof device absorbs dust and moisture. Elastic silicone material and sponge material are used to improve sealing and ventilation efficiency.
It extends the lifespan of the desiccant, reduces fogging, improves the lighting effect of the headlights, enhances the stability and durability of the ventilation device, and reduces the impact of airflow on the internal components of the headlights.
Smart Images
Figure CN224352833U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle lighting manufacturing technology, specifically to a ventilation device, a drying device, and a vehicle lighting device. Background Technology
[0002] As LED light source technology matures, the cost of using LEDs as automotive light sources is gradually decreasing. LED headlights will gradually replace halogen and high-voltage discharge headlights, becoming the most widely used choice for automotive lighting. However, when using LEDs as the light source for headlights, the problem of headlight fogging is becoming increasingly serious. Unlike the high temperatures of older halogen and high-voltage discharge headlights, the internal temperature of LED headlight components will not exceed 140°C, and the internal temperature of LED headlights is relatively concentrated and unevenly distributed, making it impossible to effectively heat the headlight lens.
[0003] During daily car use, when the external environment fluctuates between hot and cold, such as during car washes, driving into basements, or cold snaps, fog can form on the inner surface of the headlights. This fog significantly hinders the brightness of the headlights, greatly reducing driving safety at night or in low-visibility conditions. Current technology uses a desiccant built into the headlights and a venting device to expel the moisture.
[0004] However, the relevant technology has at least one of the following problems: the current ventilation device is usually equipped with a flow channel to remove moisture and balance pressure. Moisture in the air can easily enter the interior of the headlight through the flow channel, which will reduce the service life of the desiccant and thus affect the lighting effect of the headlight. Utility Model Content
[0005] The technical problem solved by this invention is that current ventilation devices, in order to expel moisture and balance pressure, are usually equipped with a flow channel. Moisture in the air can easily enter the interior of the vehicle headlight through the flow channel, thereby reducing the service life of the desiccant and affecting the lighting effect of the headlight.
[0006] To solve the above problems, this utility model provides a ventilation device, which is installed on the main body of the vehicle headlight. The ventilation device includes: a duckbill valve with a receiving space and an opening; and a dustproof and waterproof device installed in the receiving space. When the air pressure at the first end of the ventilation device is less than or equal to the air pressure at the second end opposite to the first end, the opening is closed; when the air pressure at the second end is less than the air pressure at the first end, the opening is opened.
[0007] Compared with existing technologies, the technical effects achieved by this solution are as follows: Considering actual working conditions, when the headlight is on, the air temperature inside the headlight cavity rises, and the air pressure inside the cavity increases accordingly. At this time, the opening of the duckbill valve opens due to the increased air pressure inside the cavity, allowing the high-temperature, high-humidity gas inside the cavity to be quickly discharged. When the headlight is turned off, the air pressure inside the headlight is less than or equal to the air pressure outside the headlight, preventing high-temperature, high-humidity gas from entering the cavity. This extends the lifespan of the desiccant inside the headlight, reduces fogging, and improves the headlight's illumination effect. Simultaneously, a waterproof and dustproof device is installed within the housing space to effectively absorb dust and moisture from the air.
[0008] In one embodiment of this utility model, the duckbill valve includes an elastic part and a fixed part connected to each other, with the opening located at the end of the elastic part away from the fixed part; the diameter of the elastic part gradually decreases along the direction away from the fixed part.
[0009] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: the design of the elastic part gradually decreasing in diameter away from the fixed part makes it easier for the high-temperature and high-humidity gas inside the headlight to be discharged when the internal air pressure is high, thus accelerating the gas discharge flow rate; at the same time, this structure can reduce the impact of airflow on the internal components of the headlight when the opening is open, thereby improving the service life of the headlight.
[0010] In one embodiment of this utility model, the elastic part includes a first mating surface and a second mating surface; the distance between the first mating surface and the second mating surface gradually decreases along the direction away from the fixed part.
[0011] In one embodiment of this utility model, both the first mating surface and the second mating surface are recessed toward the receiving space.
[0012] Compared with the existing technology, the technical effect achieved by adopting this technical solution is as follows: both the first mating surface and the second mating surface are recessed towards the accommodating space, so that when the opening is closed, the two mating surfaces can fit tightly together under their own elasticity to form a good sealing effect, effectively preventing gas leakage, ensuring that the ventilator maintains reliable sealing performance during long-term use, and enhancing the waterproof and dustproof effect of the ventilator.
[0013] In one embodiment of this utility model, the fixing part is a cylindrical pipe structure.
[0014] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: the fixing part is a cylindrical pipe structure, which has good symmetry and stability, making it easy to install and fix inside the vehicle lamp; at the same time, the cylindrical structure can evenly distribute stress, reduce stress concentration problems caused by irregular shape, improve the strength and reliability of the fixing part, and ensure the stability and durability of the duckbill valve during the use of the vehicle lamp.
[0015] In one embodiment of this invention, the elastic part is made of elastic silicone material.
[0016] Compared with existing technologies, the technical effects achieved by this solution are as follows: The elastic part is made of elastic silicone material, which has excellent elasticity and flexibility, ensuring that the opening can be opened and closed flexibly and respond quickly under different air pressure differences. The silicone material also has good weather resistance, corrosion resistance and anti-aging properties, which can withstand various harsh environmental conditions encountered during the use of vehicle lights, such as high temperature, ultraviolet rays, and chemicals, extending the service life of the elastic part and ensuring the long-term stable operation of the ventilation device.
[0017] In one embodiment of this utility model, the dustproof and waterproof device is provided with multiple ventilation holes.
[0018] Compared with existing technologies, the technical effects achieved by this solution are as follows: the dustproof and waterproof device has multiple vents, which greatly increases the ventilation area, allowing gas to pass through quickly and improving ventilation efficiency; at the same time, the design of multiple vents can increase the absorption area of the dustproof and waterproof device while ensuring ventilation performance, achieving good dustproof and waterproof effects, ensuring the dryness and cleanliness of the inside of the headlight, and improving the lighting effect of the headlight.
[0019] In one embodiment of this utility model, the dustproof and waterproof device includes a sponge.
[0020] Compared with existing technologies, the technical effects achieved by this solution are as follows: The dustproof and waterproof device uses sponge material, whose porous structure has good breathability and excellent filtration performance, which can effectively filter out tiny dust particles and water vapor molecules; In addition, the sponge material also has a certain cushioning performance, which can reduce the vibration and impact on the headlights during driving, protect the duckbill valve and other components inside the ventilation device, and improve the stability and durability of the entire ventilation device.
[0021] On the other hand, the present invention also provides a drying device, including: a breathable device as in any of the above examples.
[0022] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the technical effects corresponding to any of the above examples, which will not be elaborated here.
[0023] On the other hand, the present invention also provides a vehicle lamp, including a drying device as described in any of the above examples.
[0024] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the technical effects corresponding to any of the above examples, which will not be elaborated here.
[0025] By adopting the technical solution of this utility model, the following technical effects can be achieved:
[0026] (1) In combination with the actual working conditions, when the headlight is turned on, the air temperature inside the headlight cavity rises and the air pressure inside the headlight cavity rises accordingly. At this time, the opening of the duckbill valve opens due to the increase in air pressure inside the headlight cavity, and the high temperature and high humidity gas inside the headlight cavity can be quickly discharged from the opening. When the headlight is turned off, the air pressure inside the headlight is less than or equal to the air pressure outside the headlight, so the high temperature and high humidity gas outside the headlight cavity cannot enter the headlight cavity, thereby extending the service life of the desiccant inside the headlight and reducing the generation of fog inside the headlight, thereby improving the lighting effect of the headlight. At the same time, a waterproof and dustproof device is installed in the containment space, which can absorb dust and moisture in the air in a timely manner.
[0027] (2) The design of the elastic part gradually decreasing in diameter along the direction away from the fixed part makes it easier for the high temperature and high humidity gas inside the headlight to be discharged when the air pressure inside the headlight is high, and accelerates the flow rate of gas discharge; at the same time, this structure can reduce the impact of airflow on the internal components of the headlight when the opening is open, and improve the service life of the headlight.
[0028] (3) Both the first mating surface and the second mating surface are recessed towards the accommodating space, so that when the opening is closed, the two mating surfaces can fit tightly together under their own elasticity to form a good sealing effect, effectively prevent gas leakage, ensure that the ventilator maintains reliable sealing performance during long-term use, and enhance the waterproof and dustproof effect of the ventilator. Attached Figure Description
[0029] 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.
[0030] Figure 1 This is a schematic diagram of the structure of a breathable device provided in an embodiment of the present utility model;
[0031] Figure 2 for Figure 1 A schematic diagram of the ventilation device shown from another perspective;
[0032] Figure 3 for Figure 2 A cross-sectional view along the AA direction.
[0033] Explanation of reference numerals in the attached figures:
[0034] 100. Ventilation device; 10. Duckbill valve; 11. Receiving space; 12. Elastic part; 121. First mating surface; 122. Second mating surface; 13. Fixing part; 14. Opening; 15. First end; 16. Second end; 20. Dustproof and waterproof device. Detailed Implementation
[0035] The embodiments of this utility model will now be described in detail. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] 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.
[0038] See Figure 1 This is a structural schematic diagram of a breathable device provided in an embodiment of the present utility model. Specifically, in conjunction with... Figures 2-3 This utility model provides a ventilation device 100, which is installed on the main body of a vehicle headlight. The ventilation device 100 includes a duckbill valve 10 and a dustproof and waterproof device 20. The duckbill valve 10 has a receiving space 11 and an opening 14. The dustproof and waterproof device 20 is installed in the receiving space 11. When the air pressure at the first end 15 of the ventilation device 100 is less than or equal to the air pressure at the second end 16 opposite to the first end 15, the opening 14 is closed. When the air pressure at the second end 16 is less than the air pressure at the first end 15, the opening 14 is opened.
[0039] Furthermore, the elastic part 12 is made of flexible material.
[0040] Furthermore, considering actual working conditions, when the headlights are turned on, the air temperature inside the headlight cavity rises, and the air pressure inside the cavity rises accordingly. At this time, the opening 14 of the duckbill valve 10 opens due to the increased air pressure inside the cavity, allowing the high-temperature and high-humidity gas inside the cavity to be quickly discharged from the opening 14. When the headlights are turned off, the air pressure inside the headlights is less than or equal to the air pressure outside the headlights, thus preventing the high-temperature and high-humidity gas outside the cavity from entering the cavity. This extends the lifespan of the desiccant inside the headlights, reduces the generation of fog inside the headlights, and improves the lighting effect of the headlights. At the same time, a waterproof and dustproof device is installed in the housing space 11 to absorb dust and moisture in the air in a timely manner.
[0041] Preferably, the duckbill valve 10 includes an elastic part 12 and a fixed part 13 connected to each other, and an opening 14 is provided at the end of the elastic part 12 away from the fixed part 13; the diameter of the elastic part 12 gradually decreases along the direction away from the fixed part 13.
[0042] Furthermore, the design of the elastic part 12 with its diameter gradually decreasing in the direction away from the fixed part 13 makes it easier for the high temperature and humidity gas inside the headlight to be discharged when the air pressure inside the headlight is high, thus accelerating the flow rate of the gas discharge. At the same time, this structure can reduce the impact of airflow on the internal components of the headlight when the opening 14 is open, thereby improving the service life of the headlight.
[0043] Preferably, the elastic part 12 includes a first mating surface 121 and a second mating surface 122; the distance between the first mating surface 121 and the second mating surface 122 gradually decreases along the direction away from the fixed part 13.
[0044] Preferably, both the first mating surface 121 and the second mating surface 122 are recessed toward the receiving space 11.
[0045] Furthermore, both the first mating surface 121 and the second mating surface 122 are recessed toward the receiving space 11, so that when the opening 14 is closed, the two mating surfaces can fit tightly together under their own elasticity to form a good sealing effect, effectively preventing gas leakage, ensuring that the ventilator 100 maintains reliable sealing performance during long-term use, and enhancing the waterproof and dustproof effect of the ventilator 100.
[0046] Preferably, the fixing part 13 is a cylindrical pipe structure.
[0047] Furthermore, the fixing part 13 is a cylindrical pipe structure, which has good symmetry and stability, making it easy to install and fix inside the vehicle lamp; at the same time, the cylindrical structure can evenly distribute stress, reduce stress concentration problems caused by irregular shape, improve the strength and reliability of the fixing part 13, and ensure the stability and durability of the duckbill valve 10 during the use of the vehicle lamp.
[0048] Preferably, the elastic part 12 is made of elastic silicone material.
[0049] Furthermore, the elastic part 12 is made of elastic silicone material, which has excellent elasticity and flexibility, ensuring that the opening 14 can open and close flexibly and respond quickly under different air pressure differences. The silicone material also has good weather resistance, corrosion resistance and anti-aging properties, which can withstand various harsh environmental conditions encountered during the use of vehicle lights, such as high temperature, ultraviolet rays, chemicals, etc., extending the service life of the elastic part 12 and ensuring the long-term stable operation of the ventilation device 100.
[0050] Preferably, the dustproof and waterproof device 20 has multiple ventilation holes.
[0051] Furthermore, the dustproof and waterproof device 20 has multiple vents, which greatly increases the ventilation area, allowing gas to pass through quickly and improving ventilation efficiency. At the same time, the design of multiple vents can increase the absorption area of the dustproof and waterproof device 20 while ensuring ventilation performance, achieving good dustproof and waterproof effect, ensuring the dryness and cleanliness of the inside of the vehicle headlight, and improving the lighting effect of the vehicle headlight.
[0052] Preferably, the dustproof and waterproof device 20 includes a sponge.
[0053] Furthermore, the dustproof and waterproof device 20 is made of sponge material, whose porous structure has good breathability and excellent filtration performance, which can effectively filter out tiny dust particles and water vapor molecules; in addition, the sponge material also has a certain cushioning performance, which can reduce the vibration and impact on the headlights during driving, protect the duckbill valve 10 and other components inside the ventilation device 100, and improve the stability and durability of the entire ventilation device 100.
[0054] On the other hand, this embodiment of the present invention also provides a drying device, including: a breathable device 100 as in any of the above examples. Correspondingly, in this embodiment, the technical effects corresponding to any of the above technical solutions can be achieved, which will not be repeated here.
[0055] Furthermore, this embodiment of the invention also provides a vehicle lamp, including a drying device as described in any of the above examples. Correspondingly, this embodiment can achieve the technical effects corresponding to any of the above technical solutions, which will not be elaborated further here.
[0056] 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 breathable device, characterized in that, The ventilation device is disposed on the main body of the vehicle headlight, and the ventilation device includes: A duckbill valve (10) is provided with a receiving space (11) and an opening (14). A dustproof and waterproof device (20) is provided in the accommodating space (11); When the air pressure at the first end (15) of the ventilating device is less than or equal to the air pressure at the second end (16) opposite to the first end (15), the opening (14) is closed. When the air pressure at the second end (16) is less than the air pressure at the first end (15), the opening (14) opens.
2. The breathable device according to claim 1, characterized in that, The duckbill valve (10) includes an elastic part (12) and a fixed part (13) connected to each other, and the opening (14) is located at the end of the elastic part (12) away from the fixed part (13); The diameter of the elastic part (12) gradually decreases in the direction away from the fixed part (13).
3. The breathable device according to claim 2, characterized in that, The elastic part (12) includes a first mating surface (121) and a second mating surface (122); Along the direction away from the fixing part (13), the distance between the first mating surface (121) and the second mating surface (122) gradually decreases.
4. The breathable device according to claim 3, characterized in that, Both the first mating surface (121) and the second mating surface (122) are recessed toward the receiving space (11).
5. The breathable device according to claim 2, characterized in that, The fixing part (13) is a cylindrical pipe structure.
6. The breathable device according to claim 2, characterized in that, The elastic part (12) is made of elastic silicone material.
7. The breathable device according to claim 1, characterized in that, The dustproof and waterproof device (20) has multiple ventilation holes.
8. The breathable device according to claim 1, characterized in that, The dustproof and waterproof device (20) includes a sponge.
9. A drying apparatus, characterized in that, include: The breathable device as described in any one of claims 1-8.
10. A vehicle light, characterized in that, include: The drying apparatus as described in claim 9.