A vehicle lamp dehumidifying device and a vehicle lamp

Abstract

This application relates to the field of vehicle technology and discloses a vehicle headlight dehumidification device and a vehicle headlight. The vehicle headlight dehumidification device includes: a housing with an internal accommodating cavity, the housing having a first vent opening and a second vent opening; the first vent opening is for communication with the interior of the headlight cover, and the second vent opening is for communication with the exterior of the headlight cover; and a dehumidification assembly, including a moisture-absorbing element located within the accommodating cavity, a first sealing element for sealing the first vent opening, a second sealing element for sealing the second vent opening, and a drive mechanism; one side of the moisture-absorbing element faces the accommodating cavity, and the other side is positioned close to a heat source; the drive mechanism includes a first drive end and a second drive end, the first drive end being drivenly connected to the first sealing element; the second drive end being drivenly connected to the second sealing element. The vehicle headlight dehumidification device and vehicle headlight of this application can ensure that the interior of the headlight cover is in a dry environment for a long time, has a good anti-fog effect, and can improve the reliability of the headlight.

Description

Technical Field

[0001] This application belongs to the field of vehicle technology, specifically relating to a vehicle headlight dehumidification device and a vehicle headlight. Background Technology

[0002] As the main lighting device of a vehicle, the headlight cover not only serves to decorate the vehicle's appearance but also acts as a safety indicator, crucial to safe driving. Generally, headlight covers utilize vents to balance the air pressure difference between the inside and outside of the headlight, preventing deformation or damage to the sealing strips due to temperature changes. When the weather is humid (such as after rain, car wash, or high humidity) or there is a large temperature difference between day and night, the headlight cover generates heat during operation, raising the internal air temperature while maintaining relatively low humidity. After the vehicle is parked and the engine is turned off, the internal temperature of the headlight cover drops rapidly. The humid air encounters the relatively cool inner wall of the headlight cover, causing water vapor to condense and form fog. However, this fog usually dissipates quickly through the vents over time.

[0003] However, when environmental conditions change drastically (such as after washing the car and then exposing it to the sun, or after driving in the rain and then parking), a large amount of water vapor entering through the vents may condense into more water droplets or fog inside the headlight cover, and this fog cannot dissipate in time until the headlights are turned on, affecting the headlights' ability to illuminate the road. Over time, this situation seriously hinders the safe driving of the car.

[0004] To avoid the aforementioned problems, existing technologies typically place a desiccant inside the lamp cover to absorb moisture and achieve an anti-fogging function. However, external moisture can diffuse freely into the lamp through the vents, causing the desiccant to become saturated and lose its moisture-absorbing effect within a very short time, ultimately resulting in the loss of the vehicle's anti-fogging function. Summary of the Invention

[0005] To address the shortcomings of the prior art, this application provides a vehicle headlight dehumidification device and a vehicle headlight to improve the dehumidification effect and reliability of vehicle headlights.

[0006] The technical effects to be achieved in this application are realized through the following aspects:

[0007] In a first aspect, this application discloses a vehicle headlight dehumidification device, comprising:

[0008] The housing has an internal cavity, and includes a first vent and a second vent; the first vent communicates with the interior of the lampshade, and the second vent communicates with the exterior of the lampshade; and

[0009] The dehumidification assembly includes a moisture-absorbing element located within the accommodating cavity, a first sealing element for sealing the first vent opening, a second sealing element for sealing the second vent opening, and a drive mechanism; one side of the moisture-absorbing element faces the accommodating cavity, and the other side is positioned close to a heat source.

[0010] The driving mechanism includes a first driving end and a second driving end, wherein the first driving end is drivingly connected to a first sealing element; and the second driving end is drivingly connected to a second sealing element.

[0011] When the dehumidification component absorbs moisture through the moisture-absorbing element, the first sealing element is driven to separate from the first vent opening, and at the same time the second sealing element is driven to block the second vent opening.

[0012] When the dehumidification component is used to discharge moisture from the moisture-absorbing component, the first seal is driven to block the first vent opening, and at the same time the second seal is driven to separate from the second vent opening.

[0013] In some embodiments, the housing has a mounting position on a side wall near the first vent opening, and the moisture-absorbing element is disposed on the mounting position.

[0014] In some embodiments, the mounting position is a through hole penetrating the housing, and the moisture-absorbing element is further provided with a heat-conducting layer located outside the through hole.

[0015] In some embodiments, the drive mechanism includes a driver, a first link, and a second link;

[0016] One end of the first connecting rod is connected to the driver, and the other end is connected to the first seal as a first driving end; or, one end of the first connecting rod is connected to the driver, and the other end is connected to the second seal as a second driving end.

[0017] The second connecting rod connects the first seal and the second seal.

[0018] In some embodiments, the housing includes:

[0019] The bottom shell has a first vent opening at one end and an installation opening at the other end; the dehumidification assembly is disposed inside the bottom shell; and

[0020] The top cover has a second vent opening located in the middle, and the top cover is sealed to the mounting opening.

[0021] In some embodiments, the drive mechanism includes a driver and a support plate, wherein the driver is mounted on the support plate;

[0022] The bottom shell is provided with a snap-fit ​​structure, and the support plate is detachably connected to the bottom shell through the snap-fit ​​structure.

[0023] In some embodiments, the driver is disposed on a first side of the support plate, and the moisture-absorbing member is disposed on the bottom shell and faces a second side of the support plate;

[0024] The support plate has ventilation holes for connecting the two sides of the support plate.

[0025] In some embodiments, a sealing ring is provided at the interface between the top cover and the bottom shell.

[0026] In some embodiments, the second ventilation opening is further provided with a breathable membrane.

[0027] Secondly, this application also discloses a vehicle lamp, including a lamp cover and the vehicle lamp dehumidification device described in any of the above, wherein the housing is connected to the lamp cover at the first vent opening.

[0028] In summary, this application has at least the following advantages:

[0029] This application provides a vehicle headlight dehumidification device and a vehicle headlight, which drives the first seal and the second seal through the driving mechanism of the dehumidification component to block or separate the first vent opening and the second vent opening respectively, and can actively control the moisture absorption and moisture release functions of the dehumidification component.

[0030] When the car is turned on but the headlights are off, the dehumidification component can dehumidify the inside of the headlight cover. At this time, the drive component drives the first seal to separate from the first vent, and the second seal blocks the second vent, so that the water vapor inside the headlight cover can enter the housing of the headlight dehumidification device through the first vent. The moisture is absorbed and stored by the moisture-absorbing component to achieve dehumidification of the inside of the headlight cover, preventing water vapor from condensing or fogging inside the headlight cover.

[0031] When the headlights are turned on, the dehumidification assembly can expel the moisture from the moisture-absorbing component. At this time, the drive mechanism drives the first seal to block the first vent opening, and the second seal separates from the second vent opening. The moisture-absorbing component uses a heat source to heat the moisture it stores and quickly form water vapor, which is then released to the outside of the housing through the second vent opening. This improves the moisture absorption effect of the moisture-absorbing component when it is used for dehumidification in the future, ensuring that the inside of the headlight lens is in a dry environment for a long time and achieving the anti-fog function of the headlights.

[0032] Furthermore, the aforementioned vehicle headlight dehumidification device and headlight have a relatively simple structure, good anti-fog function, and can improve the reliability of vehicle headlight use. Attached Figure Description

[0033] Figure 1This is an exploded structural diagram of the vehicle headlight dehumidification device according to an embodiment of this application.

[0034] Figure 2 This is a schematic diagram of the assembled structure of the vehicle headlight dehumidification device according to an embodiment of this application.

[0035] Figure 3 This is a first cross-sectional structural diagram of the vehicle headlight dehumidification device according to an embodiment of this application.

[0036] Figure 4 This is a second cross-sectional structural diagram of the vehicle headlight dehumidification device according to an embodiment of this application.

[0037] Figure 5 This is a schematic diagram of the frame structure of the vehicle headlights according to an embodiment of this application.

[0038] Marked in the image:

[0039] 1. Housing; 11. Bottom shell; 111. Mounting position; 12. Top cover; 13. Snap-fit ​​structure; 14. Breathable membrane; 15. Fixing hole; 2. Dehumidification component; 21. Moisture-absorbing component; 211. Moisture-absorbing material; 212. Thermal conductive layer; 22. First seal; 23. Second seal; 24. Drive mechanism; 241. First connecting rod; 242. Second connecting rod; 25. Support plate; 251. Vent hole; 101. First vent opening; 102. Second vent opening; 3. Sealing ring; 4. Wiring terminal. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments.

[0041] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0042] Please see Figure 1-2 The figure shows an exploded structural diagram and an assembled structural diagram of a vehicle headlight dehumidification device according to this application. The vehicle headlight dehumidification device includes a housing 1 and a dehumidification component 2.

[0043] The housing 1 has an internal cavity and is provided with a first vent 101 and a second vent 102. The first vent 101 is used to communicate with the interior of the lampshade, and the second vent 102 is used to communicate with the exterior of the lampshade.

[0044] In other words, the interior of the lamp cover needs to be connected to the outside through the housing of the vehicle lamp dehumidification device. The housing 1 can be made of common materials such as metal or plastic to protect the internal dehumidification components 2 and form an installation cavity. The shape of the structure and the materials used are not limited.

[0045] In some embodiments, the lamp cover may have an opening that connects and mates with the first vent opening 101 of the housing 1, ensuring a certain degree of airtightness. The second vent opening 102 may be directly connected to the outside, or it may be indirectly connected to an external opening.

[0046] The dehumidification assembly 2 includes a moisture-absorbing element 21 located within a accommodating cavity, a first sealing element 22 for sealing a first vent opening 101, a second sealing element 23 for sealing a second vent opening 102, and a drive mechanism 24. One side of the moisture-absorbing element 21 faces the accommodating cavity, and the other side is positioned close to a heat source. The drive mechanism 24 includes a first drive end and a second drive end, the first drive end being drivenly connected to the first sealing element 22; the second drive end being drivenly connected to the second sealing element 23.

[0047] The moisture-absorbing component 21 can be a structural component made of moisture-absorbing material 211. The moisture-absorbing material 211 can include common moisture-absorbing materials such as silica gel and activated alumina. This application does not limit the type of material, as long as it can absorb water vapor at room temperature and release water vapor at high temperature.

[0048] In some embodiments, the shape and size of the first sealing member 22 and the second sealing member 23 can correspond to the shape and size of the first vent opening 101 and the second vent opening 102, respectively, so that they can seal the first vent opening 101 and the second vent opening 102, respectively, and prevent moisture from passing through after sealing. The front end of the first sealing member 22 and the second sealing member 23 can be made of rubber block or additional rubber ring, etc., to seal the openings and ensure the sealing performance after sealing.

[0049] In some embodiments, the drive mechanism 24 may be a power mechanism such as an electric actuator, a magnetic actuator, or a cylinder. One or more drive mechanisms 24 may be used to drive and control the first seal 22 and the second seal 23 individually or simultaneously to complete the blocking / opening action of the first vent opening 101 or the second vent opening 102. This application does not limit the driving method and installation method of the drive mechanism 24 for the first seal 22 and the second seal 23.

[0050] During application, when the moisture-absorbing component 21 of the dehumidification assembly 2 is used to absorb moisture, that is, when the car is turned on but the headlights are off, the first seal 22 is driven to separate from the first vent opening 101, and at the same time, the second seal 23 is driven to block the second vent opening 102. At this time, the inside of the lamp cover is connected to the accommodating cavity in the housing 1 through the first vent opening 101. The moisture-absorbing component 21 can absorb the moisture inside the lamp cover and convert it into liquid water for storage, preventing moisture from condensing or fogging inside the lamp cover, thereby affecting the lighting effect of the headlights.

[0051] When the moisture stored in the moisture-absorbing element 21 of the dehumidification assembly 2 is discharged, that is, when the headlights are turned on, the first seal 22 is driven to seal the first vent opening 101, and at the same time, the second seal 23 is driven to separate from the second vent opening 102. At this time, since the moisture-absorbing element 21 is configured to be close to the heat source, that is, it can be set to be directly attached to or indirectly close to the heat source, so that the heat source can be used to heat the moisture-absorbing element 21, evaporate the liquid water in the moisture-absorbing element 21 into water vapor and diffuse it into the accommodating cavity, and discharge the water vapor through the second vent opening 102, thereby completing the dehumidification treatment of the moisture-absorbing element 21. This allows the moisture-absorbing element 21 to better absorb the water vapor in the lamp cover when the headlights are turned off next time, ensuring that the lamp cover is in a dry state (such as the relative humidity in the lamp cover is between 40% and 60%), improving the anti-fog effect and reliability of the headlight dehumidification device. The heat source can be a self-heating heat source, or it can be the heat sink of the vehicle headlight or a panel / component that generates heat, thus eliminating the need for a separate heating device, simplifying the structure and improving the reliability of use.

[0052] It can be seen that the structure of the vehicle light dehumidification device is relatively simple. It can block or separate the first vent 101 and the second vent 102 respectively, and can actively control the moisture absorption and release function of the dehumidification component 2. It has a good anti-fog function and can improve the reliability of vehicle light use.

[0053] In some embodiments, the housing 1 has a mounting position 111 on the side wall near the first vent opening 101. The moisture-absorbing element 21 is disposed on the mounting position 111, which is used for mounting and fixing the moisture-absorbing element 21, facilitating its replacement. Specifically, the back of the mounting position 111 can abut against a heat source so that heat can be conducted to the moisture-absorbing element 21 when the heat source generates heat. Furthermore, to improve the heating efficiency of the heat source on the moisture-absorbing element 21, the mounting position 111 is a through hole penetrating the housing 1, and the moisture-absorbing element 21 is also provided with a heat-conducting layer 212, which is located outside the through hole. The heat-conducting layer 212 allows the heat from the heat source to be more directly introduced into the moisture-absorbing element 21, thereby improving the heating efficiency of the moisture-absorbing element 21, heating the liquid water in the moisture-absorbing element 21 to a water vapor state more quickly, and increasing the evaporation rate of the liquid water. Of course, the heat-conducting layer 212 can be set on one side of the moisture-absorbing component 21 or on the mounting position 111 of the housing 1. The specific installation method of the heat-conducting layer 212 can be determined according to actual needs.

[0054] Specifically, the moisture-absorbing component 21 and the heat-conducting layer 212 can be installed on the housing 1 by a detachable snap or screw structure, or they can be fixed by applying glue. The specific fixing method is not limited.

[0055] In some embodiments, see Figure 3 The figure shows a first cross-sectional structure of the vehicle headlight dehumidification device provided in an embodiment of this application.

[0056] like Figure 3 As shown, combined with Figure 1-2 The drive mechanism 24 of the vehicle headlight dehumidification device includes a driver, a first connecting rod 241, and a second connecting rod 242. One end of the first connecting rod 241 is connected to the driver, and the other end serves as the first driving end, connected to the first seal 22. Specifically, the driver can be an electric actuator, which is powered and communicates with an external control system via a wire and a terminal block 4 on the housing 1 (not shown in the wiring diagram). The electric actuator is connected to the first seal 22 via the first connecting rod 241, so that when the electric actuator is working, it can drive the first seal 22 to extend or retract. Furthermore, a second connecting rod 242 for linkage is provided between the first seal 22 and the second seal 23. By providing the second connecting rod 242, the electric actuator can simultaneously drive the first seal 22 and the second seal 23 to extend or retract.

[0057] When the lampshade needs to be dehumidified using the moisture-absorbing component 21, the electric actuator drives the first connecting rod 241 to retract, causing the first sealing component 22 to move away from the first vent opening 101. This connects the lampshade to the housing 1's accommodating cavity, allowing moisture to enter the housing 1 and be absorbed by the moisture-absorbing component 21. Simultaneously, the second sealing component 23, driven by the second connecting rod 242, moves towards the second vent opening 102 and ultimately seals it, preventing external moisture from entering the housing 1 and affecting the dehumidification efficiency of the moisture-absorbing component 21.

[0058] When the moisture-absorbing component 21 needs to be heated, the electric actuator extends the first connecting rod 241, causing the first sealing component 22 to move towards the first vent opening 101 and ultimately seal the first vent opening 101, preventing moisture evaporated from the moisture-absorbing component 21 from entering the lampshade. At the same time, the second sealing component 23 is moved away from the second vent opening 102 by the second connecting rod 242, allowing moisture in the accommodating cavity to be discharged to the outside through the second vent opening 102, completing the moisture discharge action of the moisture-absorbing component 21.

[0059] In other embodiments, one end of the first link 241 is connected to the driver, and the other end serves as a second driving end connected to the second seal 23. The electric actuator, acting as the driver, can move the second seal 23 and, using the second link 242, drive the first seal 22, thereby enabling a single driver to simultaneously drive both the first seal 22 and the second seal 23.

[0060] It is understandable that the specific connection and driving method between the drive mechanism 24 and the first seal 22 and the second seal 23 can be determined according to actual needs. For example, two drivers can be used to connect to the first seal 22 and the second seal 23 respectively to achieve individual driving, which does not affect the functional implementation of the embodiment of this application. This embodiment is only one implementation method.

[0061] To improve the ease of installation and maintenance of the vehicle headlight dehumidification device, the housing 1 may include at least two parts: a bottom shell 11 and a top cover 12. A first vent 101 is located at one end of the bottom shell 11, and a mounting opening is located at the other end. The dehumidification component 2 is housed inside the bottom shell 11. A second vent 102 is located in the middle of the top cover 12, and the top cover 12 is sealed to the mounting opening. During installation, the dehumidification component 2 can be inserted into the bottom shell 11 through the mounting opening and secured, and the top cover 12 can be installed into the mounting opening of the bottom shell 11, thus completing the installation of the vehicle headlight dehumidification component 2. For maintenance, the top cover 12 can be removed, and the dehumidification component 2 can be taken out for repair, improving the convenience of installation and maintenance of the vehicle headlight dehumidification device.

[0062] Please see Figure 4 The figure shows a second cross-sectional structure of the vehicle headlight dehumidification device provided in an embodiment of this application.

[0063] like Figure 4 As shown, please refer to Figure 1-2 In one embodiment, the drive mechanism 24 includes a driver and a support plate 25. The driver is mounted on the support plate 25, and the bottom shell 11 is provided with a snap-fit ​​structure 13. The support plate 25 is detachably connected to the bottom shell 11 through the snap-fit ​​structure 13. The driver can be an electric actuator. When the vehicle headlight dehumidification device needs to be installed, the electric actuator can be fixed to the support plate 25 by screws or other means. The first seal 22, the second seal 23, the first connecting rod 241, and the second connecting rod 242 are installed. The support plate 25 together with the dehumidification assembly 2 is installed into the bottom shell 11 through the snap-fit ​​structure 13.

[0064] Specifically, the snap-fit ​​structure 13 can be a sliding groove adapted to the support plate 25, so that the support plate 25 can slide into or out of the bottom shell 11 using the sliding groove, so as to facilitate the installation of the device and subsequent maintenance.

[0065] Of course, in addition to the above installation method, other conceivable installation methods can be used, as long as they facilitate the installation or disassembly of the drive mechanism 24 and the dehumidification component 2.

[0066] In one embodiment, when the driver is mounted on the support plate 25 and located on the first side of the support plate 25, the moisture-absorbing element is disposed on the bottom shell 11 and faces the second side of the support plate 25. The support plate 25 is provided with ventilation holes 251 for connecting the two sides of the support plate 25.

[0067] The vent allows communication between the two sides of the support plate 25, thereby ensuring that the moisture absorber can fully absorb the moisture in the accommodating cavity, or diffuse the moisture into the accommodating cavity and discharge it through the second vent 102 when heated, reducing the impact of the support plate 25 on the dehumidification efficiency of the moisture absorber.

[0068] In some embodiments, a sealing ring 3 is provided at the interface between the upper cover 12 and the bottom shell 11. The sealing ring 3 can improve the sealing degree between the upper cover 12 and the bottom shell 11, thereby ensuring the dustproof and waterproof performance of the vehicle lamp dehumidification device and the vehicle lamp. Specifically, the sealing ring 3 can be interference-fitted between the upper cover 12 and the bottom shell 11, or it can be sleeved at the connection between the upper cover 12 and the bottom shell 11; the specific installation method can be determined according to the actual situation.

[0069] In some embodiments, a breathable membrane 14 is further provided at the second vent opening 102. By providing a breathable membrane 14 at the second vent opening 102, the vehicle lamp and the vehicle lamp dehumidification device have a breathable effect, while preventing external dust or water from directly entering the lamp cover, thereby improving the reliability of the vehicle lamp dehumidification device and the vehicle lamp.

[0070] In one embodiment, the upper cover 12 may be provided with fixing holes 15, through which the vehicle lamp dehumidification device can be fixed to other structural components, thereby ensuring the reliability of the connection between the vehicle lamp dehumidification device and other structural components. Furthermore, sealing material may be provided on the periphery of the first vent opening 101 and the second vent opening 102, which can improve the sealing performance between the first vent opening 101 and the lamp cover, and between the second vent opening 102 and other structural components.

[0071] Please see Figure 5 The figure shows a schematic diagram of the frame structure of the vehicle lamp provided in an embodiment of this application.

[0072] like Figure 5 As shown, the vehicle lamp 100 includes a lamp cover 110 and a vehicle lamp dehumidification device 120. The lamp cover 110 has a vent hole. The vehicle lamp dehumidification device 120 includes a housing 1 and a dehumidification component 2. The housing 1 has a first vent opening 101 and a second vent opening 102. The housing 1 can communicate with the vent hole of the lamp cover 110 through the first vent opening 101. When the first seal 22 leaves the first vent opening 101 and the second seal 23 blocks the second vent opening 102, the lamp cover 110 and the vehicle lamp dehumidification device 120 communicate to form a single cavity. The moisture-absorbing component 21 in the dehumidification component 2 can dry the lamp cover 110 by absorbing moisture in the cavity.

[0073] Meanwhile, the heating components of the lamp cover 110 are positioned close to the moisture-absorbing component 21 as a heat source, such as the lamp beads and circuit boards of the vehicle lamp 100. When the vehicle lamp 100 is turned on, the moisture-absorbing component 21 can be heated through the heating components inside the lamp cover 110.

[0074] When in use, when the car is turned on but the headlights 100 are off, the dehumidification component 2 can dehumidify the inside of the lamp cover 110. At this time, the drive component is powered on and drives the first seal 22 to separate from the first vent 101, and the second seal 23 blocks the second vent 102, so that the water vapor inside the lamp cover 110 of the headlight 100 can enter the housing 1 of the headlight dehumidification device 120 through the first vent 101. The moisture is absorbed and stored by the moisture absorption component 21 to achieve dehumidification of the inside of the lamp cover 110, and to prevent the water vapor from condensing or fogging inside the lamp cover 110.

[0075] When the headlight 100 is turned on, the dehumidification component 2 can expel the moisture from the moisture-absorbing component 21. At this time, the drive mechanism 24 drives the first seal 22 to block the first vent opening 101, and the second seal 23 separates from the second vent opening 102. The moisture-absorbing component 21 uses a heat source to heat the moisture it stores and quickly form water vapor, which is then released to the outside of the housing 1 through the second vent opening 102. This improves the moisture absorption effect of the moisture-absorbing component 21 when it is used for dehumidification in the future, ensuring that the inside of the headlight cover 110 of the headlight 100 is in a dry environment for a long time, thus achieving the anti-fog function of the headlight 100.

[0076] By adding a dehumidifying device 120 to the headlight 100, the interior of the headlight 100 can remain dry for extended periods. Even when environmental conditions change drastically and moisture levels increase significantly, the dehumidifying element 21 can absorb moisture and dry it during use. This allows for repeated and effective absorption of moisture inside the lamp cover 110, ensuring that the headlight 100's illumination effect is not affected by water droplets or fog formed inside the lamp cover 110. Furthermore, the headlight 100 eliminates the need for a separate heat source to heat the dehumidifying element 21, simplifying the structure and improving the reliability of the headlight 100.

[0077] It is understood that, apart from referring to the structural form of any of the above embodiments, this application does not limit the specific implementation form of the lamp cover and the vehicle headlight dehumidification device.

[0078] Furthermore, in this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0079] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this application 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 limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0080] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0081] In this application, unless otherwise expressly specified and limited, "above or below" a first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" a first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0082] Although the description of this application has been made in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A vehicle lamp dehumidification device, used to communicate with the lamp cover of a vehicle lamp, characterized in that, include: The housing has an internal cavity, and the housing is provided with a first vent opening and a second vent opening. The first vent is for communicating with the interior of the lampshade, and the second vent is for communicating with the exterior of the lampshade; and The dehumidification assembly includes a moisture-absorbing element located within the accommodating cavity, a first sealing element for sealing the first vent opening, a second sealing element for sealing the second vent opening, and a drive mechanism; one side of the moisture-absorbing element faces the accommodating cavity, and the other side is positioned close to a heat source. The driving mechanism includes a first driving end and a second driving end, wherein the first driving end is drivingly connected to a first sealing element; and the second driving end is drivingly connected to a second sealing element. When the dehumidification component absorbs moisture through the moisture-absorbing element, the first sealing element is driven to separate from the first vent opening, and at the same time the second sealing element is driven to block the second vent opening. When the dehumidification component is used to discharge moisture from the moisture-absorbing component, the first seal is driven to block the first vent opening, and at the same time the second seal is driven to separate from the second vent opening.

2. The vehicle headlight dehumidification device as described in claim 1, characterized in that, The housing has a mounting position on the side wall near the first vent opening, and the moisture-absorbing element is disposed on the mounting position.

3. The vehicle headlight dehumidification device as described in claim 2, characterized in that, The mounting position is a through hole penetrating the housing, and the moisture-absorbing component is also provided with a heat-conducting layer, which is located outside the through hole.

4. The vehicle headlight dehumidification device as described in claim 1, characterized in that, The drive mechanism includes a driver, a first link, and a second link; One end of the first connecting rod is connected to the driver, and the other end is connected to the first seal as a first driving end; or, one end of the first connecting rod is connected to the driver, and the other end is connected to the second seal as a second driving end. The second connecting rod connects the first seal and the second seal.

5. The vehicle headlight dehumidification device as described in claim 1, characterized in that, The housing includes: The bottom shell has a first vent opening at one end and an installation opening at the other end; the dehumidification assembly is disposed inside the bottom shell; and The top cover has a second vent opening located in the middle, and the top cover is sealed to the mounting opening.

6. The vehicle headlight dehumidification device as described in claim 5, characterized in that, The drive mechanism includes a driver and a support plate, with the driver mounted on the support plate; The bottom shell is provided with a snap-fit ​​structure, and the support plate is detachably connected to the bottom shell through the snap-fit ​​structure.

7. The vehicle headlight dehumidification device as described in claim 6, characterized in that, The driver is located on the first side of the support plate, and the moisture-absorbing element is located on the bottom shell and faces the second side of the support plate. The support plate has ventilation holes for connecting the two sides of the support plate.

8. The vehicle headlight dehumidification device as described in claim 5, characterized in that, A sealing ring is provided at the interface between the top cover and the bottom shell.

9. The vehicle headlight dehumidification device as described in any one of claims 1-8, characterized in that, The second ventilation opening is also provided with a breathable membrane.

10. A vehicle light, characterized in that, The device includes a lampshade and a vehicle lamp dehumidification device according to any one of claims 1-9, wherein the housing is connected to the lampshade at the first vent opening.

Images