Vehicle lamp heat dissipation device and vehicle

Abstract

The utility model discloses a vehicle lamp heat dissipation device and a vehicle, the vehicle lamp heat dissipation device comprises a shell, a driving part, a heat dissipation part and an air inlet part, a containing cavity is formed in the shell, and a vehicle lamp is arranged in the containing cavity; the driving part and the heat dissipation part are respectively arranged on the outer side and the inner side of the shell; the air inlet part is provided with an air inlet channel, and an inlet and an outlet of the air inlet channel are opened towards an air inlet grille and the driving part of the vehicle correspondingly so that external airflow passing through the air inlet grille can be guided to the driving part. The driving part is suitable for driving the heat dissipation part to move under the action of external airflow so as to exchange heat with the automobile lamp. Therefore, external air flow is introduced and utilized as a power source of the driving part, the driving part drives the heat dissipation part to work so as to dissipate heat of the automobile lamp, the heat dissipation efficiency and effect of the automobile lamp can be improved, meanwhile, the external air flow is utilized as the power source, and related parts such as a motor for providing the power source do not need to be additionally arranged; therefore, the production cost and the energy consumption can be saved.

Description

Technical Field

[0001] The present application relates to the field of headlight heat dissipation devices, and more particularly to a headlight heat dissipation device and a vehicle. Background Art

[0002] With the development of automotive lighting technology, LED (Light Emitting Diode) light sources, due to their advantages such as high efficiency, long lifespan, and low energy consumption, have gradually become the mainstream choice for automotive headlights. However, LED light sources have high power and high heat generation, and effective heat dissipation measures are required to ensure their normal operation and extend their lifespan. Currently, for the heat dissipation requirements of LED headlights, two main solutions are commonly adopted in the market: active fan heat dissipation and cast aluminum heat sink heat dissipation. Among them, cast aluminum heat sinks have the advantage of low cost, but their heat dissipation efficiency is also low, and it is difficult to effectively handle the large amount of heat generated by high-power LED light sources. Long-term operation at high temperatures may lead to a decline in the performance of LED light sources and even affect the lifespan of the lamps. In contrast, the active fan heat dissipation system has better heat dissipation effects through the forced convection of the built-in fan. However, the active fan heat dissipation system also has the disadvantage of high cost, including the manufacturing cost of the fan itself, the energy consumption of the drive circuit, and additional maintenance costs, etc. Therefore, it is particularly important to develop a heat dissipation device that can effectively dissipate heat and has a low cost. Summary of the Utility Model

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the present application is to provide a headlight heat dissipation device, which can introduce and utilize external air flow as the power source of the driving part to drive the heat dissipation part to work, so as to dissipate heat from the headlight, improve the heat dissipation efficiency and effect of the headlight. At the same time, using external air flow as the power source, there is no need to additionally set relevant components such as motors that provide the power source, so the production cost and energy consumption can also be saved.

[0004] The present application also provides a vehicle equipped with the above-mentioned headlight heat dissipation device.

[0005] The headlight heat dissipation device according to the first aspect embodiment of the present application, the headlight heat dissipation device includes: a housing, a driving part, a heat dissipation part and an air inlet part. An accommodation cavity is formed in the housing, and a headlight is arranged in the accommodation cavity; the driving part and the heat dissipation part are respectively arranged on the outer side and the inner side of the housing, and at least part of the driving part penetrates through the housing to be connected with the heat dissipation part, or at least part of the heat dissipation part penetrates through the housing to be connected with the driving part; the air inlet part has an air inlet channel, and the inlet and outlet of the air inlet channel are respectively open towards the air intake grille of the vehicle and the driving part, so as to guide the external air flow passing through the air intake grille to the driving part; wherein the driving part is adapted to drive the heat dissipation part to move under the action of the external air flow so as to exchange heat with the headlight.

[0006] According to the headlight heat dissipation device of the present application, the natural wind (external air flow) generated during the driving of the vehicle can be introduced and used as the power source of the driving part, so that the driving part drives the heat dissipation part to work, thereby realizing that the heat dissipation part dissipates heat from the headlight in time. In this way, the heat dissipation efficiency and effect of the headlight can be improved, the working safety and stability of the headlight can be improved, the service life of the headlight can be extended. At the same time, by using the external air flow as the power source, there is no need to additionally set components such as motors to provide the power source and related circuit components. Therefore, the production cost and working energy consumption can be significantly reduced, and the economy can be improved.

[0007] According to some embodiments of the present application, the driving part and the heat dissipation part are respectively configured as a first fan and a second fan, and the first fan is connected to the second fan.

[0008] Further, the first fan has fan blades, and the fan blades are opposite to the outlet of the air inlet channel in the radial direction of the first fan.

[0009] In some embodiments, the first fan has a first rotating shaft, the second fan has a second rotating shaft, and the first rotating shaft is connected to the second rotating shaft and arranged coaxially.

[0010] Further, the first rotating shaft and the second rotating shaft are configured as an integrally formed part.

[0011] Further, the headlight heat dissipation device further includes: a sealing member, and the sealing member is arranged between the housing and the first rotating shaft and the second rotating shaft.

[0012] According to some embodiments of the present application, the air inlet part is configured as a flexible air inlet pipe.

[0013] In some embodiments, the cross-sectional area of the part of the air inlet part close to the inlet gradually decreases in the direction away from the air inlet grille.

[0014] According to some embodiments of the present application, a filter screen is provided at the entrance of the air inlet passage, and the filter screen is used to block external sundries from entering the air inlet passage.

[0015] A vehicle according to an embodiment of the second aspect of the present application, the vehicle includes: the headlight heat dissipation device according to any one of the above embodiments.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram of a headlight heat dissipation device according to an embodiment of the present application Figure 1 ;

[0019] Figure 2 is a schematic diagram of a headlight heat dissipation device according to an embodiment of the present application Figure 2 ;

[0020] Figure 3 Schematic cross-sectional view of the cooperation of the housing, the driving part and the heat dissipation part according to an embodiment of the present application.

[0021] Reference numerals:

[0022] 100, headlight heat dissipation device;

[0023] 10, housing;

[0024] 20, driving part; 201, first rotating shaft;

[0025] 30, heat dissipation part; 301, second rotating shaft;

[0026] 40, air inlet part; 40a, entrance; 40b, exit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used in this application shall have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application pertains; the terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims, and drawings of this application are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification, claims, or drawings of this application are used to distinguish different objects and not to describe a specific order or primary-secondary relationship.

[0029] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase may not necessarily refer to the same embodiment when it appears in various places in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0030] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled", and "attached" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] The term "and / or" in this application is merely a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.

[0032] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width, etc. of various components shown in the drawings of the embodiments of this application, as well as the overall thickness, length, width, etc. of the integrated device, are only illustrative and should not constitute any limitation to this application.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0034] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0035] In the description of the present application, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0036] The "plurality" mentioned in the present application refers to two or more (including two).

[0037] Reference is made below to Figures 1 - 3 Describe a headlight heat dissipation device 100 and a vehicle according to an embodiment of the present application.

[0038] As Figure 1 shown, according to an embodiment of the first aspect of the present application, the headlight heat dissipation device 100 includes: a housing 10, a driving part 20, a heat dissipation part 30, and an air inlet part 40.

[0039] Among them, a receiving cavity is formed in the housing 10, and a headlight is arranged in the receiving cavity; the driving part 20 and the heat dissipation part 30 are respectively arranged on the outer side and the inner side of the housing 10, and at least a part of the driving part 20 penetrates through the housing 10 to be connected to the heat dissipation part 30, or at least a part of the heat dissipation part 30 penetrates through the housing 10 to be connected to the driving part 20; the air inlet part 40 has an air inlet channel, and the inlet 40a and the outlet 40b of the air inlet channel are respectively open towards the air intake grille of the vehicle and the driving part 20 to guide the external air flow passing through the air intake grille to the driving part 20; the driving part 20 is adapted to drive the heat dissipation part 30 to move under the action of the external air flow to exchange heat with the headlight.

[0040] Specifically, the accommodating cavity in the shell 10 can be used to install and fix the headlight to ensure the stability and safety of the headlight during operation; the driving unit 20 can be arranged on the outside of the shell 10, which can be understood as the side of the shell 10 that is away from the accommodating cavity in the thickness direction, and the heat dissipation unit 30 is located on the inside of the shell 10, which can be understood as the heat dissipation unit 30 is accommodated in the accommodating cavity, and the heat dissipation unit 30 can be arranged close to the headlight to exchange heat with the headlight; an air inlet channel can be formed in the air inlet unit 40, the inlet 40a of the air inlet channel is open to the vehicle's air inlet grille, and the outlet 40b of the air inlet channel is open to the driving unit 20, so that the natural wind (i.e., external airflow) generated by the vehicle during driving can smoothly enter the air inlet channel through the air inlet grille and directly act on the driving unit 20, thereby driving the driving unit 20 to work, which is equivalent to the external airflow being the power source of the driving unit 20 to realize the operation of the driving unit 20. The driving part 20 is connected to the heat dissipation part 30, so when the driving part 20 is affected by the external airflow, it can drive the heat dissipation part 30 to move, for example, make the heat dissipation part 30 rotate, generate air circulation, accelerate the flow of air around the car lamp, and then take away the heat generated by the car lamp, achieving heat dissipation and cooling of the car lamp.

[0041] According to the headlight heat dissipation device 100 of the present application, the natural wind (external airflow) generated by the vehicle during driving can be introduced and used as the power source of the driving unit 20, so that the driving unit 20 drives the heat dissipation unit 30 to work, so that the heat dissipation unit 30 can dissipate heat for the headlight in time. In this way, the heat dissipation efficiency and effect of the headlight can be improved, the working safety and stability of the headlight can be improved, and the service life of the headlight can be extended. At the same time, by using the external airflow as the power source, there is no need to additionally set up motors and other power source components and related circuit components. Therefore, the production cost and working energy consumption can be significantly reduced, and the economy can be improved.

[0042] like Figure 1 As shown, according to some embodiments of the present application, the driving part 20 and the heat dissipation part 30 are respectively configured as a first fan and a second fan, and the first fan is connected to the second fan.

[0043] Specifically, the first fan is an external fan located outside the housing 10. The first fan can receive the external air flow generated during vehicle driving through the air inlet grille and the air inlet portion 40. Driven by the external air flow, the first fan can rotate, thereby converting the external wind energy into mechanical energy. The second fan is an internal fan located in the accommodation cavity of the housing 10, and the second fan is connected to the first fan. When the first fan rotates, the first fan can drive the second fan to rotate, so that the second fan can accelerate the air flow around the headlight in the accommodation cavity to achieve heat dissipation of the headlight. By connecting the first fan and the second fan, the rotation of the first fan (external fan) can be directly and efficiently converted into the rotation of the second fan (internal fan), thus effectively improving the heat dissipation efficiency and effect of the headlight.

[0044] As Figure 1 and Figure 2 shown, according to some embodiments of the present application, the first fan has fan blades, and the fan blades are radially opposite to the outlet 40b of the air inlet passage in the first fan.

[0045] Specifically, the fan blades can be arranged radially opposite to the outlet 40b of the air inlet passage in the first fan. Such an arrangement can ensure that the external air flow introduced from the air inlet portion 40 can impact directly on the fan blades of the first fan. Specifically, when the vehicle is driving, the external wind (external air flow) passes through the air inlet grille and the air inlet portion 40 and is quickly conducted to the first fan. The force of the external air flow directly acts on the fan blades without passing through additional bends or losses, thus greatly improving the utilization efficiency of wind energy. Furthermore, this direct impact can effectively drive the rotation of the first fan and improve the stability and uniformity of the rotation of the first fan. In this way, the driving effect of the first fan and the second fan can be optimized, and the working efficiency of the overall headlight heat dissipation device 100 can be improved, enabling the headlight to be continuously and effectively cooled during vehicle driving, which is beneficial to improving the working reliability of the headlight and extending the service life of the headlight.

[0046] As Figure 3 shown, according to some embodiments of the present application, the first fan has a first rotating shaft 201, the second fan has a second rotating shaft 301, and the first rotating shaft 201 is connected to the second rotating shaft 301 and arranged coaxially.

[0047] Specifically, the first fan and the second fan respectively have a first rotating shaft 201 and a second rotating shaft 301. The first rotating shaft 201 and the second rotating shaft 301 can be directly connected or connected through a specific connection structure, and the first rotating shaft 201 and the second rotating shaft 301 are arranged coaxially. With the coaxial arrangement, on the one hand, when the first fan (external fan) is driven by wind force to rotate, its rotational force can be directly and efficiently transmitted to the second fan (internal fan), enabling the two to rotate synchronously with the same angular velocity and direction. In this way, the energy transfer efficiency can be improved, and the working performance of the second fan can be enhanced. On the other hand, the structural compactness of the first fan and the second fan can also be improved, which is beneficial to improving the space utilization rate inside the housing 10 and facilitating the maintenance of the first fan and the second fan.

[0048] As Figure 3 shown, according to some embodiments of the present application, the first rotating shaft 201 and the second rotating shaft 301 are configured as an integrally formed part.

[0049] Specifically, by configuring the first rotating shaft 201 and the second rotating shaft 301 as an integrally formed part, firstly, the number of intermediate connection components can be saved, and the structural compactness of the first fan and the second fan can be further improved, which can save production costs and enhance the lightweight of the headlight heat dissipation device 100. Secondly, by configuring the first rotating shaft 201 and the second rotating shaft 301 as an integrally formed part, the connection strength between the first rotating shaft 201 and the second rotating shaft 301 can be enhanced, and the working reliability and stability of the first fan and the second fan can be improved. Thirdly, by configuring the first rotating shaft 201 and the second rotating shaft 301 as an integrally formed part, the problems of gaps and looseness that may occur due to the connection of multiple components can also be avoided, thereby improving the assembly and positioning accuracy of the first fan and the second fan, and enhancing the stability and reliability of the overall headlight heat dissipation device 100.

[0050] As Figure 1 shown, according to some embodiments of the present application, the headlight heat dissipation device 100 further includes: a sealing member, and the sealing member is disposed between the housing 10, the first rotating shaft 201, and the second rotating shaft 301.

[0051] Specifically, the integrally formed part formed by the first rotating shaft 201 and the second rotating shaft 301 penetrates through the housing 10 to realize the connection between the first fan and the second fan. By setting a sealing member between the housing 10, the first rotating shaft 201, and the second rotating shaft 301, the sealing performance of the accommodating cavity can be further increased, thereby effectively preventing impurities such as dust and water vapor from infiltrating into the interior of the housing 10 through the small gaps between the rotating shaft and the housing 10. The stability and safety of the environment inside the accommodating cavity can be improved, effectively protecting the headlights and other electronic components inside the housing 10, so as to extend the service life of the headlights and other electronic components and save maintenance costs.

[0052] In addition, in some specific embodiments of the present application, the seal is configured as a rubber part. The rubber material has good elasticity and sealing performance. By configuring the seal as a rubber part, the small gap between the housing 10 and the rotating shaft can be effectively filled, achieving good sealing performance. At the same time, it can also absorb vibrations and impacts to a certain extent, which is beneficial to further protecting components such as the vehicle lamp and other electronic components.

[0053] In some other specific embodiments of the present application, the seal is configured as a foam part. The foam material has good compressibility and resilience, and can closely fit the irregular surface to form an effective seal. Therefore, by configuring the seal as a foam part, it helps to improve the adaptability between the seal and the housing 10 and the rotating shaft. The seal can closely fill the complex gap between the housing 10 and the rotating shaft to ensure the sealing effect. In addition, by configuring the seal as a foam part, the seal can also achieve good sound insulation effect, which is beneficial to reducing the interference of wind noise on the electronic components in the accommodation cavity and improving the working reliability of the electronic components.

[0054] As Figure 1 and Figure 2 shown, according to some embodiments of the present application, the air inlet part 40 is configured as a flexible air inlet duct.

[0055] Specifically, the flexible air inlet duct can be configured as a hose or made of other flexible materials. The flexible air inlet duct has good bendability and stretchability, etc. By configuring the air inlet part 40 as a flexible air inlet duct, the air inlet part 40 can freely bend or stretch with the vibrations during vehicle driving and the changes in different installation environments, which can avoid the problem of poor air flow caused by the installation position (such as the relative position between the air inlet grille and the vehicle lamp) or space limitations. Moreover, it can simplify the installation process, reduce the precise requirements for the installation space, enable the vehicle lamp heat dissipation device 100 to adapt to more vehicle models and installation conditions, and improve the adaptability and versatility of the vehicle lamp heat dissipation device 100.

[0056] As Figure 1 and Figure 2 shown, according to some embodiments of the present application, the cross-sectional area of the part of the air inlet part 40 near the inlet 40a gradually decreases in the direction away from the air inlet grille.

[0057] Specifically, the cross-sectional area of the air inlet portion 40 near the inlet 40a gradually decreases in the direction away from the air inlet grille. As the cross-sectional area gradually decreases, the air flow will be subject to an increasingly strong resistance when passing through this area, thereby increasing the wind pressure. When the external air flow passes through the air inlet portion 40, it can powerfully drive the first fan to rotate, and then increase the rotational speed of the second fan, ultimately enhancing the heat dissipation effect of the vehicle lamp. Additionally, the decrease in the cross-sectional area also means that when the air flow rate passing through this area remains unchanged within the same time, the air flow velocity will increase. The increase in velocity helps to carry away the heat of the vehicle lamp faster, thereby further improving the heat dissipation efficiency of the vehicle lamp.

[0058] As Figure 1 shown, according to some embodiments of the present application, a filter screen is provided at the inlet 40a of the air inlet passage, and the filter screen is used to block external debris from entering the air inlet passage.

[0059] Specifically, the filter screen can be arranged at the inlet 40a of the air inlet passage. The filter screen can block external debris from entering the air inlet passage to protect components such as the first fan and the second fan from being damaged or contaminated by debris, so as to ensure the cleanliness of the internal environment of the first fan, the second fan, and the housing 10 and the stability of the heat dissipation efficiency. By preventing debris from entering through the filter screen, it is also possible to avoid wear and faults of components such as the air inlet portion 40 and the first fan caused by friction, blockage, etc., thereby effectively extending the service life of the entire vehicle lamp heat dissipation device 100 and realizing the reliable operation of the vehicle lamp heat dissipation device 100.

[0060] It should be noted that although the filter screen will generate a certain resistance to the air flow, its main function is to screen out debris that is unfavorable to heat dissipation, and overall it will not significantly affect the air circulation and heat dissipation effect. On the contrary, by keeping the air inlet passage unobstructed, it helps to improve the heat dissipation performance.

[0061] In addition, in some specific embodiments of the present application, the filter screen is configured to be detachably arranged at the inlet 40a of the air inlet passage for easy disassembly and cleaning of the filter screen. When a certain amount of debris has accumulated, only the filter screen needs to be disassembled and removed, and the user can easily clean and maintain it. After the filter screen is cleaned, it can be reinstalled on the air inlet portion 40. In this way, the vehicle lamp heat dissipation device 100 can be kept running efficiently for a long time.

[0062] As Figures 1 - 3 shown, according to a vehicle of the second aspect embodiment of the present application, the vehicle includes: the vehicle lamp heat dissipation device 100 described in any one of the above embodiments, and the technical effects generated are the same as those in the above embodiments and will not be elaborated here.

[0063] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0064] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vehicle lamp heat dissipation device, characterized in that: include: A housing (10), wherein a receiving cavity is formed in the housing (10), and a vehicle lamp is arranged in the receiving cavity; A driving part (20) and a heat dissipation part (30), wherein the driving part (20) and the heat dissipation part (30) are respectively arranged on the outside and inside of the shell (10), and at least a part of the driving part (20) passes through the shell (10) to be connected to the heat dissipation part (30), or at least a part of the heat dissipation part (30) passes through the shell (10) to be connected to the driving part (20); An air intake portion (40), the air intake portion (40) having an air intake passage, the inlet (40a) and the outlet (40b) of the air intake passage respectively opening toward the air intake grille of the vehicle and the driving portion (20) so as to guide the external airflow passing through the air intake grille to the driving portion (20); wherein the driving portion (20) is adapted to drive the heat dissipation portion (30) to move under the action of the external airflow so as to exchange heat with the vehicle lamp.

2. The vehicle lamp heat dissipation device according to claim 1, characterized in that: The driving part (20) and the heat dissipation part (30) are respectively configured as a first fan and a second fan, and the first fan is connected to the second fan.

3. The vehicle lamp heat dissipation device according to claim 2, characterized in that: The first fan has fan blades, and the fan blades are opposite to the outlet (40b) of the air inlet channel in the radial direction of the first fan.

4. The vehicle lamp heat dissipation device according to claim 2, characterized in that: The first fan has a first rotating shaft (201), the second fan has a second rotating shaft (301), and the first rotating shaft (201) and the second rotating shaft (301) are connected and coaxially arranged.

5. The vehicle lamp heat dissipation device according to claim 4, characterized in that: The first rotating shaft (201) and the second rotating shaft (301) are constructed as an integrally formed part.

6. The vehicle lamp heat dissipation device according to claim 5, characterized in that: Also includes: A sealing member is arranged between the housing (10) and the first rotating shaft (201) and the second rotating shaft (301).

7. The vehicle lamp heat dissipation device according to claim 1, characterized in that: The air inlet portion (40) is configured as a flexible air inlet pipe.

8. The vehicle lamp heat dissipation device according to claim 1, characterized in that: The cross-sectional area of ​​a portion of the air inlet portion (40) close to the inlet (40a) gradually decreases in a direction away from the air inlet grille.

9. The vehicle lamp heat dissipation device according to claim 1, characterized in that: The inlet (40a) of the air inlet channel is provided with a filter screen, and the filter screen is used to prevent external debris from entering the air inlet channel.

10. A vehicle, characterized in that: include: The headlight heat dissipation device according to any one of claims 1 to 9.

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