Car lamp with heat dissipation structure

Abstract

The utility model relates to the technical field of automobile accessories, in particular to an automobile lamp with a heat dissipation structure, a light-emitting assembly and a heat dissipation assembly are arranged in a heat dissipation cavity, the heat dissipation assembly comprises a heat dissipation fan and a heat dissipation channel extending towards the direction of the light-emitting assembly, and the heat dissipation channel is communicated with the heat dissipation fan through a second air opening. When the light-emitting assembly works for a long time, a large amount of heat is generated, the heat dissipation fan rotates to blow the heat to the heat dissipation channel, finally, the heat is dissipated through the heat dissipation channel, the situation of heat accumulation is prevented, secondly, through arrangement of the first air opening, air circulation in the heat dissipation cavity is accelerated, and therefore the heat dissipation efficiency is improved; the problems that a large amount of heat is generated due to long-time lightening or high-intensity work in the daily use process of an existing automobile lamp, and the heat cannot be effectively dissipated, so that the internal temperature of the automobile lamp is increased, and the service life of equipment is shortened are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive supplies, in particular to a vehicle lamp with a heat dissipation structure. Background Technique

[0002] In automotive design and safety systems, vehicle lamps are crucial components, covering various types, such as headlamps (also known as front headlights), turn signals, and fog lamps. Each type of vehicle lamp plays a unique and indispensable role. As the main lighting device for vehicles at night or in low visibility conditions, headlamps ensure that drivers can clearly observe the road conditions ahead and guarantee driving safety. Turn signals clearly indicate the driving intention of the vehicle, such as turning or changing lanes, through flashing signals, playing an important warning and pre-warning role for surrounding vehicles and pedestrians. Fog lamps are designed specifically for adverse weather conditions, such as thick fog, rain, or snow. Their strong penetration power can effectively illuminate the nearby area ahead, reduce the obstruction of vision, and improve driving safety. These different types of vehicle lamps cooperate with each other to jointly form a complex and efficient lighting system for automobiles, providing drivers with all-round visual assistance and safety protection.

[0003] During the daily use of existing vehicle lamps, due to long-term lighting or high-intensity operation, a large amount of heat is generated. Since these heats cannot be effectively dissipated, the temperature inside the vehicle lamp rises, reducing the service life of the device.

[0004] The present utility model is studied and proposed in view of the deficiencies of the existing technology. Content of the Utility Model

[0005] Regarding the problem that during the daily use of the existing vehicle lamps mentioned above, due to long-term lighting or high-intensity operation, a large amount of heat is generated. Since these heats cannot be effectively dissipated, the temperature inside the vehicle lamp rises, reducing the service life of the device, the technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] A vehicle lamp with a heat dissipation structure includes a device housing. A heat dissipation cavity is provided on the device housing. A light-emitting component and a heat dissipation component located on one side of the light-emitting component are provided on the heat dissipation cavity. The heat dissipation component includes a heat dissipation fan and a heat dissipation channel extending towards the light-emitting component. A first air inlet communicating with the heat dissipation cavity is provided on one side of the device housing close to the heat dissipation fan, and a second air inlet communicating with the first air inlet through the heat dissipation cavity and connected to the heat dissipation channel is provided.

[0007] Furthermore, the light-emitting component includes a light source part. A light-emitting opening corresponding to the light source part is provided on the device housing. The heat dissipation channels are located on the outer side wall of the device housing and are arranged at intervals along the axial direction of the device housing.

[0008] Further, a first boss is provided on the outer side wall of the device housing, and a second boss connected to the first boss and close to the light-emitting port side. The heat dissipation channel includes a plurality of first heat dissipation grooves located on the outer side wall of the first boss and arranged along the axial direction of the first boss, and a plurality of second heat dissipation grooves located on the outer side wall of the second boss and arranged along the axial direction of the second boss. A plurality of second air vents are provided and are correspondingly arranged on one side of the first heat dissipation grooves.

[0009] Further, a plurality of first air vents are provided and are spaced at intervals along the circumferential direction of the device housing.

[0010] Further, the light-emitting component includes a light source substrate, a heating tube located on one side of the light source substrate, a transfer board connected to the light source substrate, and a driving board located on the side of the transfer board away from the light source substrate. The heat dissipation fan is located between the driving board and the light source substrate and is connected to the transfer board.

[0011] Further, a first installation groove corresponding to the heating tube is provided on the inner wall of the device housing.

[0012] Further, a limiting protrusion for restricting the movement of the light source substrate is provided on the inner wall of the device housing, and a limiting hole inserted and matched with the limiting protrusion is provided on the light source substrate.

[0013] Further, a first protrusion and a first connection groove are provided on the transfer board. A second installation groove inserted and matched with the first protrusion is provided on the inner wall of the device housing, and a second connection groove clamped and matched with the first connection groove is provided on the light source substrate.

[0014] Further, a receiving groove for receiving the heat dissipation fan is provided on the transfer board. An installation protrusion is provided on the heat dissipation fan, and a third installation groove inserted and matched with the installation protrusion is provided on the inner wall of the device housing.

[0015] Further, a second protrusion is provided on the side of the transfer board close to the driving board, and a third connection groove clamped and matched with the second protrusion is provided on the driving board.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The utility model solves the problem that in the daily use of existing vehicle lamps, due to long-term lighting or high-intensity work, a large amount of heat is generated. Since these heats cannot be effectively dissipated, the internal temperature of the vehicle lamp rises, and the service life of the device is reduced. The utility model is provided with a light-emitting component and a heat-dissipating component in a heat-dissipating cavity. The heat-dissipating component includes a heat-dissipating fan and a heat-dissipating channel extending in the direction of the light-emitting component. The heat-dissipating channel communicates with the heat-dissipating fan through a second air outlet. When the light-emitting component works for a long time, a large amount of heat is generated. The heat-dissipating fan rotates to blow the heat into the heat-dissipating channel, and finally the heat is dissipated through the heat-dissipating channel, preventing the accumulation of heat. Secondly, the setting of the first air outlet is beneficial to accelerating the air circulation in the heat-dissipating cavity, thereby improving the heat-dissipating efficiency.

[0018] The following will further illustrate the present utility model in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is one of the schematic structural diagrams of the device housing of the present utility model;

[0020] Figure 2 FIG. 2 is the schematic diagram of the air flow direction of the present utility model;

[0021] Figure 3 FIG. 3 is another schematic structural diagram of the device housing of the present utility model;

[0022] Figure 4 FIG. 4 is still another schematic structural diagram of the device housing of the present utility model;

[0023] Figure 5 FIG. 5 is the exploded schematic diagram of the device housing of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will describe in detail the embodiments of the present utility model with reference to the accompanying drawings.

[0025] As shown in Figures 1 to 5 FIG. 1, a vehicle lamp with a heat dissipation structure includes a device housing 1. A heat dissipation cavity 2 is provided on the device housing 1. A light-emitting component 3 and a heat-dissipating component 4 located on one side of the light-emitting component 3 are provided on the heat-dissipation cavity 2. The heat-dissipating component 4 includes a heat-dissipating fan 41 and a heat-dissipating channel 42 extending in the direction of the light-emitting component 3. A first air outlet 5 communicating with the heat-dissipation cavity 2 and a second air outlet 9 communicating with the first air outlet 5 through the heat-dissipation cavity 2 and connected to the heat-dissipating channel 42 are provided on one side of the device housing 1 close to the heat-dissipating fan 41.

[0026] In the present utility model, a light-emitting component and a heat-dissipating component are arranged in a heat-dissipating cavity. The heat-dissipating component includes a heat-dissipating fan and a heat-dissipating channel extending towards the light-emitting component. The heat-dissipating channel communicates with the heat-dissipating fan through a second air outlet. When the light-emitting component works for a long time, a large amount of heat is generated. The heat-dissipating fan rotates to blow the heat towards the heat-dissipating channel, and finally the heat is dissipated through the heat-dissipating channel, preventing the accumulation of heat. Secondly, the setting of the first air outlet is conducive to accelerating the air circulation in the heat-dissipating cavity, thereby improving the heat-dissipating efficiency, and effectively solving the problem that in the daily use of existing vehicle lamps, due to long-term lighting or high-intensity work, a large amount of heat is generated. Since these heats cannot be effectively dissipated, the internal temperature of the vehicle lamp rises, and the service life of the device is damaged.

[0027] Optionally, in some embodiments, the heat-dissipating fan 41 is located on one side of the light-emitting component 3 and is arranged parallel to the light-emitting component 3. When the heat-dissipating fan 41 operates normally, a pressure difference can be generated, so as to suck away the heat around the light-emitting component 3 and dissipate it to the external environment.

[0028] Further, as a preferred mode rather than a limitation of the present utility model, the heat-dissipating fan 41 and the light-emitting component 3 are arranged along the same axial direction.

[0029] Optionally, in some embodiments, when the heat-dissipating fan 41 rotates normally, a negative pressure difference is generated on one side of the second air outlet 9, and external air enters the heat-dissipating cavity 2 through the heat-dissipating channel 42 via the second air outlet 9, and the air flow drives the heat to be discharged from the first air outlet 5 to the external environment.

[0030] Further, as a preferred mode rather than a limitation of the present utility model, when the heat-dissipating fan 41 rotates normally, a negative pressure is generated on one side of the first air outlet 5, accelerating the entry of external air into the heat-dissipating cavity 2 through the first air outlet 5. The external air flow drives the heat in the heat-dissipating cavity 2 to be blown towards the heat-dissipating channel 42 through the second air outlet 9, and the heat is dissipated through the heat-dissipating channel 42.

[0031] Optionally, in some embodiments, the heat-dissipating channel 42 is located on the inner side wall of the device housing 1. When the heat-dissipating fan 41 rotates, an air flow is generated, and under the guiding action of the heat-dissipating channel 42, the heat generated by the light-emitting component 3 is transported to the second air outlet 9 and finally discharged to the outside.

[0032] Further, as a preferred mode rather than a limitation of the present utility model, the heat-dissipating channel 42 is located on the outer side wall of the device housing 1. The heat-dissipating channel 42 communicates with the heat-dissipating cavity 2. When heat is generated during the normal operation of the light-emitting component 3, the heat accumulates in the heat-dissipating cavity 2. The heat-dissipating fan 41 rotates to generate an air flow, and the air flow transports the heat in the heat-dissipating cavity 2 to the heat-dissipating channel 42 located on the outer side wall of the device housing 1. The air flow can quickly take away the heat in the heat-dissipating cavity 2, preventing the accumulation of heat.

[0033] Furthermore, the heat dissipation cavity 2, the light-emitting component 3, and the heat dissipation fan 41 are all located within the device housing 1, making the structure of the entire device more compact and not occupying excessive external space, which is beneficial to improving the overall compactness of the device.

[0034] As Figures 1 to 5 shown, the light-emitting component 3 includes a light source portion 31. A light-emitting opening 6 corresponding to the light source portion 31 is provided on the device housing 1. The heat dissipation channels 42 are located on the outer sidewall of the device housing 1 and are spaced along the axial direction of the device housing 1.

[0035] Furthermore, the arrangement of the heat dissipation channels 42 is beneficial to increasing the surface area of the outer sidewall of the device housing 1, thereby increasing the area of contact between the outer sidewall of the device housing 1 and the air, which helps to enhance the heat exchange effect, enabling heat to be dissipated to the external environment more quickly.

[0036] Furthermore, the heat dissipation channels 42 are arranged along the axial direction of the device housing 1 so that the heat dissipation channels 42 can face the light-emitting opening 6, which helps to guide the air flow along the direction of the heat dissipation channels 42. When the light-emitting component 3 is operating normally, some heat accumulates in the heat dissipation cavity 2, and the heat dissipation fan 41 transfers the heat in the heat dissipation cavity 2 to the heat dissipation channels 42. When the light source portion 31 is operating normally, heat is generated, and the heat accumulates at the light-emitting opening 6. The heat dissipation channels 42 extend towards the light-emitting opening 6, enabling the air flow to reach the light-emitting opening 6 through the heat dissipation channels 42, thereby transferring the heat at the light-emitting opening 6, which is beneficial to improving the heat dissipation efficiency and effectively extending the service life of the device.

[0037] Furthermore, the heat dissipation channels 42 are located on the outer sidewall of the device housing 1 without occupying internal space, making the overall structure of the device more compact.

[0038] As Figures 1 to 5 shown, the outer sidewall of the device housing 1 is provided with a first boss 11 and a second boss 12 connected to the first boss 11 and closer to the side of the light-emitting opening 6. The heat dissipation channels 42 include a number of first heat dissipation grooves 421 located on the outer sidewall of the first boss 11 and arranged along the axial direction of the first boss 11, and a number of second heat dissipation grooves 422 located on the outer sidewall of the second boss 12 and arranged along the axial direction of the second boss 12. There are multiple second air outlets 9 and they are correspondingly arranged on one side of the first heat dissipation grooves 421.

[0039] Furthermore, the arrangement of the first boss 11 and the second boss 12 forms a hierarchical heat dissipation structure. The heat in the heat dissipation cavity 2 is first dissipated through the first heat dissipation grooves 421, and the remaining heat is further dissipated through the second heat dissipation grooves 422, which helps to more efficiently reduce the overall temperature of the device.

[0040] Furthermore, the first heat dissipation groove 421 and the second heat dissipation groove 422 together constitute a larger heat dissipation area, enabling heat to be exchanged with the external environment more quickly, which helps improve the heat dissipation efficiency and ensures that the vehicle lamp can maintain stable performance under long-term or high-load working conditions.

[0041] Furthermore, the cross-section where the first heat dissipation groove 421 and the second heat dissipation groove 422 are connected is in an "L" shape, and both the first heat dissipation groove 421 and the second heat dissipation groove 422 are arranged along the axial direction of the device housing 1, which helps guide the airflow towards the light-emitting port 5, effectively reducing the temperature around the light-emitting port 5, improving the performance of the light source part 31, and effectively extending the service life of the device.

[0042] Furthermore, the first boss 11 and the second boss 12, as part of the device housing 1, not only have a heat dissipation function but also play a role in strengthening the device housing 1, which helps improve the overall structural stability of the vehicle lamp and is beneficial to reducing the risk of damage caused by vibration or impact.

[0043] Optionally, in some embodiments, the first boss 11 and the second boss 12 can be made of aluminum alloy material. Aluminum alloy has good thermal conductivity, which helps the rapid transfer and dissipation of heat, and at the same time has high strength and corrosion resistance.

[0044] Optionally, in some embodiments, the first boss 11 and the second boss 12 can be made of thermoplastic material. Thermoplastic plastics have the characteristics of light weight, easy processing, and low cost.

[0045] Optionally, in some embodiments, the first boss 11 and the second boss 12 can be made of stainless steel material. Stainless steel has excellent corrosion resistance and aesthetics, and at the same time has high strength and toughness.

[0046] Furthermore, one end of several first heat dissipation grooves 421 is provided with corresponding second air vents 9, each first heat dissipation groove 421 corresponds to one second air vent 9, and the first heat dissipation groove 421 communicates with the heat dissipation cavity 2 through the second air vent 9.

[0047] As Figures 1 to 5 shown, there are multiple first air vents 5 and they are arranged at intervals along the circumferential direction of the device housing 1;

[0048] Furthermore, arranging the first air vents 5 at intervals along the circumferential direction can effectively ensure the uniform distribution of air flowing into the heat dissipation cavity 2, thereby reducing the problem of uneven local air intake, so that the entire heat dissipation system obtains uniform air inflow, which is beneficial to improving the overall heat dissipation effect.

[0049] Furthermore, the evenly distributed first air vents 5 contribute to forming a more complex and effective convection field inside the device housing 1, which is beneficial to accelerating the air flow and thus enhancing the heat dissipation effect.

[0050] Furthermore, as a preferred embodiment rather than a limitation of the present utility model, the number of the first air vents 5 is four.

[0051] As Figures 1 to 5 shown, the light-emitting component 3 includes a light source substrate 32, a heating tube 33 located on one side of the light source substrate 32, an adapter plate 34 connected to the light source substrate 32, and a driving plate 35 located on the side of the adapter plate 34 away from the light source substrate 32. The cooling fan 41 is located between the driving plate 35 and the light source substrate 32 and is connected to the adapter plate 34;

[0052] Working principle: The power supply provides electricity to the driving plate 35. The driving plate 35 converts the electricity into a current and voltage suitable for the light source substrate 32. The driving plate 35 transmits the processed electrical signal to the light source substrate 32 through the adapter plate 34. The light source portion 31 on the light source substrate 32 receives the electrical signal and emits light. The light source substrate 32 generates heat during operation. The heating tube 33 conducts the heat to the outside or the heat dissipation device to avoid overheating problems.

[0053] Furthermore, the cooling fan 41 is located between the light source substrate 32 and the driving plate 35, which can effectively discharge the heat generated by the light source substrate 32. The cooling fan 41 blows the hot air from the heat dissipation cavity 2 to the heat dissipation channel 42, so that the heat in the heating tube 33 is conducted from the light source substrate 32 to the external environment, thereby preventing overheating.

[0054] Furthermore, setting the cooling fan 41 between the driving plate 35 and the light source substrate 32 makes full use of the limited space inside the component, which is beneficial to improving the compactness and integration of the device.

[0055] As Figures 1 to 5 shown, the inner wall of the device housing 1 is provided with a first mounting groove 71 corresponding to the heating tube 33;

[0056] Furthermore, the first mounting groove 71 provides a precise positioning space for the heating tube 33, which is beneficial to ensuring that the heating tube 33 can be accurately placed at the predetermined position during installation, effectively avoiding installation difficulties or performance degradation caused by position deviation during the installation process.

[0057] Furthermore, the number of the heating tubes 33 is two and they are respectively located on both sides of the light source substrate 32.

[0058] Furthermore, by embedding the heating tube 33 into the first installation groove 71, the stability of the heating tube 33 within the device housing 1 can be significantly improved, which helps prevent the heating tube 33 from shifting or falling off due to vibration or external forces during operation, and is conducive to ensuring good contact and heat transfer effect between the heating tube 33 and surrounding components.

[0059] As Figures 1 to 5 shown, the inner wall of the device housing 1 is provided with a limiting protrusion 72 for restricting the movement of the light source substrate 32, and the light source substrate 32 is provided with a limiting hole 321 that is inserted and matched with the limiting protrusion 72.

[0060] Furthermore, the insertion and matching of the limiting protrusion 72 and the limiting hole 321 provide precise positioning for the position of the light source substrate 32 within the device housing 1, which is conducive to ensuring the accuracy of the light source substrate 32 during installation and effectively avoiding performance degradation or safety hazards caused by position deviation.

[0061] Furthermore, through the cooperation of the limiting protrusion 72 and the limiting hole 321, the light source substrate 32 is firmly fixed within the device housing 1, which not only enhances the stability of the light source substrate 32 but also helps prevent it from shifting or falling off due to vibration or external forces during operation.

[0062] Furthermore, when the user needs to maintain or replace the light source substrate 32, due to the cooperative setting of the limiting protrusion 72 and the limiting hole 321, the user can disassemble and install the light source substrate 32 more conveniently and quickly, thus simplifying the maintenance process.

[0063] As Figures 1 to 5 shown, the adapter board 34 is provided with a first protrusion 341 and a first connection groove 342, the inner wall of the device housing 1 is provided with a second installation groove 73 that is inserted and matched with the first protrusion 341, and the light source substrate 32 is provided with a second connection groove 322 that is snap-fitted with the first connection groove 342.

[0064] Furthermore, the insertion and matching of the first protrusion 341 and the second installation groove 73, as well as the snap-fitting of the first connection groove 342 and the second connection groove 322, jointly form a stable mechanical connection structure, which is conducive to reducing relative movement between components and effectively improving the stability of the overall device.

[0065] Furthermore, by means of insertion and snap-fitting, the installation process of the adapter board 34 and the light source substrate 32 within the device housing 1 can be greatly simplified, which is conducive to saving installation time and effectively reducing the installation difficulty.

[0066] Furthermore, the insertion and snap-fitting settings have a high positioning accuracy, which can ensure the accurate positions of the adapter board 34 and the light source substrate 32 within the device housing 1.

[0067] As Figures 1 to 5 shown, the adapter board 34 is provided with a receiving groove 343 for receiving the cooling fan 41. The cooling fan 41 is provided with a mounting protrusion 411, and the inner wall of the device housing 1 is provided with a third mounting groove 74 that is inserted and matched with the mounting protrusion 411;

[0068] Furthermore, the insertion and matching of the mounting protrusion 411 and the third mounting groove 74 are conducive to ensuring the stable installation of the cooling fan 41 in the device housing 1, reducing the vibration and displacement that may occur during the operation of the cooling fan 41, and thus improving the stability of the overall structure.

[0069] Furthermore, the setting of the receiving groove 343 enables the cooling fan 41 to be precisely installed in a predetermined position, which is conducive to ensuring that the air flow direction and air volume of the cooling fan 41 can maximize the heat dissipation requirements; secondly, the cooling fan 41 is located on the adapter board 34 through the receiving groove 343, which is conducive to saving space and improving the compactness of the device.

[0070] As Figures 1 to 5 shown, the adapter board 34 is provided with a second protrusion 344 on the side close to the drive board 35, and the drive board 35 is provided with a third connection groove 351 that is snap-fitted with the second protrusion 344;

[0071] Furthermore, the snap-fitting of the second protrusion 344 and the third connection groove 351 makes the connection between the adapter board 34 and the drive board 35 tighter, which is conducive to reducing the risk of loosening caused by vibration or external force.

[0072] Furthermore, through the snap-fitting method, the adapter board 34 can be easily connected to the drive board 35 without complex installation steps or tools, which is conducive to improving the installation efficiency.

[0073] Furthermore, the snap-fitting of the second protrusion 344 and the third connection groove 351 makes the connection between the adapter board 34 and the drive board 35 more compact, which is conducive to saving space resources, helping to optimize the layout structure inside the device, and thus making the arrangement of each component more reasonable and orderly.

[0074] The implementation method of this embodiment is as follows:

[0075] A vehicle lamp with a heat dissipation structure, comprising a device housing 1. A heat dissipation cavity 2 is provided on the device housing 1. A light-emitting component 3 and a heat dissipation component 4 located on one side of the light-emitting component 3 are provided on the heat dissipation cavity 2. The heat dissipation component 4 includes a heat dissipation fan 41 and a heat dissipation channel 42 extending towards the light-emitting component 3 and communicating with the heat dissipation fan 41 through the heat dissipation cavity 2. The light-emitting component 3 includes a light source part 31. A light-emitting opening 6 corresponding to the light source part 31 is provided on the device housing 1. The heat dissipation channel 42 is located on the outer side wall of the device housing 1 and is arranged at intervals along the axial direction of the device housing 1. A first air inlet 5 communicating with the heat dissipation cavity 2 and a second air inlet 9 communicating with the first air inlet 5 through the heat dissipation cavity 2 and connected to the heat dissipation channel 42 are provided on one side of the device housing 1 close to the heat dissipation fan 41. When the light-emitting component 3 operates normally, the light-emitting component 3 generates heat, and the heat dissipation fan 41 rotates, generating a negative pressure difference on one side of the first air inlet 5, so that external air can quickly enter the heat dissipation cavity 2 through the first air inlet 5. Under the action of the air flow, the heat is transferred to the heat dissipation channel 42 through the second air inlet 9 and finally dissipated through the heat dissipation channel 42. Secondly, the heat dissipation channel 42 has a guiding effect. Under the action of the heat dissipation channel 42, the air flow blows towards the light-emitting opening 6. The heat generated when the light source part 31 operates normally can be quickly dissipated under the action of the air flow, which is beneficial to reducing the temperature around the light-emitting opening 6. The setting of the first air inlet 5 is beneficial to the inflow of external air into the heat dissipation cavity 2, accelerating the air flow and improving the heat dissipation efficiency, effectively solving the problem that in the daily use process of the existing vehicle lamp, due to long-term lighting or high-intensity work, a large amount of heat is generated. Since these heats cannot be effectively dissipated, the temperature inside the vehicle lamp rises, reducing the service life of the equipment.

[0076] The above only further illustrates the technical content of the present invention with examples to make it easier for readers to understand, but it does not mean that the implementation mode of the present invention is limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A vehicle lamp with a heat dissipation structure, comprising a device housing (1), characterized in that: The device housing (1) is provided with a heat dissipation cavity (2), the heat dissipation cavity (2) is provided with a light-emitting component (3), and a heat dissipation component (4) located on one side of the light-emitting component (3), the heat dissipation component (4) comprising a heat dissipation fan (41), and a heat dissipation channel (42) extending in the direction of the light-emitting component (3), and the device housing (1) is provided with a first air outlet (5) communicating with the heat dissipation cavity (2) on one side close to the heat dissipation fan (41), and a second air outlet (9) communicating with the first air outlet (5) through the heat dissipation cavity (2) and connected to the heat dissipation channel (42).

2. The vehicle lamp with a heat dissipation structure according to claim 1, characterized in that: The light emitting assembly (3) comprises a light source portion (31); a light emitting port (6) corresponding to the light source portion (31) is provided on the device housing (1); and the heat dissipation channels (42) are located on the outer side wall of the device housing (1) and are arranged at intervals along the axial direction of the device housing (1).

3. The vehicle lamp with a heat dissipation structure according to claim 2, characterized in that: The outer wall of the device housing (1) is provided with a first boss (11), and a second boss (12) connected to the first boss (11) and close to the light-emitting port (6); the heat dissipation channel (42) comprises a plurality of first heat dissipation grooves (421) located on the outer wall of the first boss (11) and arranged along the axial direction of the first boss (11); and a plurality of second heat dissipation grooves (422) located on the outer wall of the second boss (12) and arranged along the axial direction of the second boss (12); and a plurality of second air outlets (9) are provided and are arranged corresponding to one side of the first heat dissipation groove (421).

4. The vehicle lamp with a heat dissipation structure according to claim 1, characterized in that: A plurality of the first air outlets (5) are provided and are arranged at intervals along the circumferential direction of the device housing (1).

5. The vehicle lamp with a heat dissipation structure according to claim 1, characterized in that: The light-emitting assembly (3) comprises a light source substrate (32), a heating tube (33) located on one side of the light source substrate (32), an adapter plate (34) connected to the light source substrate (32), and a driving plate (35) located on a side of the adapter plate (34) away from the light source substrate (32); the cooling fan (41) is located between the driving plate (35) and the light source substrate (32) and connected to the adapter plate (34).

6. The vehicle lamp with a heat dissipation structure according to claim 5, characterized in that: The inner wall of the device housing (1) is provided with a first mounting groove (71) corresponding to the heating tube (33).

7. The vehicle lamp with a heat dissipation structure according to claim 5, characterized in that: The inner wall of the device housing (1) is provided with a limiting protrusion (72) for limiting the movement of the light source substrate (32), and the light source substrate (32) is provided with a limiting hole (321) which intersects and cooperates with the limiting protrusion (72).

8. The vehicle lamp with a heat dissipation structure according to claim 5, characterized in that: The adapter plate (34) is provided with a first protrusion (341) and a first connecting groove (342); the inner wall of the device housing (1) is provided with a second mounting groove (73) plug-fitting with the first protrusion (341); and the light source substrate (32) is provided with a second connecting groove (322) snap-fitting with the first connecting groove (342).

9. The vehicle lamp with a heat dissipation structure according to claim 5, characterized in that: The adapter plate (34) is provided with a receiving groove (343) for receiving the cooling fan (41), the cooling fan (41) is provided with a mounting protrusion (411), and the inner wall of the device housing (1) is provided with a third mounting groove (74) which is plugged into and matched with the mounting protrusion (411).

10. The vehicle lamp with a heat dissipation structure according to claim 5, characterized in that: A second protrusion (344) is provided on one side of the adapter plate (34) close to the drive plate (35), and a third connecting groove (351) is provided on the drive plate (35) for snap-fitting with the second protrusion (344).

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