Vehicle light assembly for a vehicle and vehicle

Abstract

The application discloses a vehicle lamp assembly and a vehicle. The vehicle lamp assembly comprises a shell, a cover, a heat dissipation device, a light emitting device and a reflecting device. An open port is formed on the shell. The cover is arranged on the open port and covers at least part of the open port. The cover and the shell jointly define a containing cavity. The heat dissipation device is arranged on the shell, and at least part of the periphery of the heat dissipation device is exposed to the outside of the shell. The light emitting device is arranged on the side of the heat dissipation device facing the containing cavity, and the light emitting device is adapted to emit light towards the containing cavity. The reflecting device is rotatably accommodated in the containing cavity and faces the light emitting device. The reflecting device is used for reflecting the light emitted by the light emitting device towards the cover. The reflecting device is rotated relative to the light emitting device to adjust the light emitting direction of the reflecting device on the cover, so that the heat dissipation performance of the vehicle lamp assembly can be improved.

Description

Technical Field

[0001] This application relates to the field of vehicle lighting, and more particularly to a lighting assembly for a vehicle and a vehicle. Background Technology

[0002] In related technologies, most current automotive fog lights use a light-emitting scheme with a light source and a reflector. The light source is directly fixed on the reflector bowl, and the two move synchronously when dimming. This structure cannot accommodate an external heat sink, and usually no heat sink is installed or only an internal heat sink can be installed. However, when customers require higher optical effects, the lack of a heat sink or the installation of only an internal heat sink results in poor heat dissipation and fails to meet customer requirements. Therefore, how to improve the heat dissipation performance of automotive lighting components has become the technical problem to be solved in this application. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of this application is to provide a vehicle lighting assembly that improves the heat dissipation performance of the lighting assembly.

[0004] This application also proposes a vehicle having the aforementioned headlight assembly.

[0005] A vehicle headlight assembly according to an embodiment of this application includes: a housing having an opening; a cover disposed at the opening and covering at least a portion of the opening, the cover and the housing together defining a receiving cavity; a heat dissipation device disposed on the housing, with at least a portion of the outer periphery of the heat dissipation device exposed to the outside of the housing; a light-emitting device disposed on the side of the heat dissipation device facing the receiving cavity, the light-emitting device being adapted to emit light toward the receiving cavity; and a reflective device rotatably housed within the receiving cavity and facing the light-emitting device, the reflective device being used to reflect the light emitted by the light-emitting device toward the cover, the reflective device rotating relative to the light-emitting device to adjust the light emission direction of the reflective device on the cover.

[0006] According to the embodiments of this application, the vehicle lighting assembly, by placing a heat dissipation device within a housing with at least a portion of its outer periphery exposed outside the housing, and assembling a light-emitting device on the side of the heat dissipation device facing the receiving cavity, avoids the structural limitations of existing integrated light sources and reflectors that prevent the installation of external heat sinks. This achieves external heat dissipation, allowing the heat generated by the light-emitting device to be transferred to the heat dissipation device. The exposed portion of the heat dissipation device can directly exchange heat with the external environment, significantly improving heat dissipation efficiency and effectively enhancing the heat dissipation effect of the light-emitting device. This meets customers' demands for higher optical performance and solves the technical problem of insufficient heat dissipation performance in existing structures, which cannot meet customer optical requirements. Simultaneously, the reflector is rotatably housed within the receiving cavity and faces the light-emitting device. The reflector rotates independently relative to the light-emitting device to adjust the light emission direction. The light-emitting device remains fixed with the heat dissipation device and does not need to move synchronously with the reflector. This achieves flexible adjustment of the light emission direction to meet optical dimming requirements and ensures a stable assembly relationship between the light-emitting device and the heat dissipation device, preventing interference from dimming actions on the fit of the heat dissipation structure. This continuously maintains the heat dissipation efficiency of the heat dissipation device, ensuring that the vehicle lighting assembly has reliable operational stability while meeting optical performance requirements.

[0007] The vehicle lighting assembly according to some embodiments of this application further includes: a dimming device disposed on a housing and at least partially extending into a receiving cavity, the dimming device abutting against a reflector, and the dimming device being adapted to drive the rotation of the reflector.

[0008] According to some embodiments of the present application, a vehicle headlight assembly has a reflector configured as a reflector bowl, with a reflective surface formed on the inner wall of the reflector bowl, and a clearance hole formed on the reflector bowl that faces the light-emitting device to guide the light from the light-emitting device to the reflective surface.

[0009] According to some embodiments of the present application, a vehicle headlight assembly has a focal point formed on its reflective surface, and the reflector bowl rotates about the focal point.

[0010] According to some embodiments of this application, a vehicle headlight assembly includes a dimming device comprising: a drive unit disposed on the side of the housing opposite to the receiving cavity; a telescopic rod, one end of which is connected to the drive unit and at least a portion of which extends into the receiving cavity, the telescopic rod being configured as a sleeve structure or a threaded structure; and an abutment portion disposed at the other end of the telescopic rod and abutting against a reflector.

[0011] According to some embodiments of this application, a vehicle lighting assembly includes a plurality of light-emitting devices and reflective devices configured in a one-to-one correspondence.

[0012] According to some embodiments of this application, a vehicle headlight assembly includes a dimming device comprising: a drive unit disposed on the side of the housing opposite to the receiving cavity; a telescopic rod configured as a plurality of telescopic rods corresponding one-to-one with a reflector, one end of each telescopic rod being connected to the drive unit, and at least a portion of the telescopic rod extending into the receiving cavity, the telescopic rod being configured as a sleeve structure or a threaded structure; and an abutment portion disposed at the other end of the telescopic rod and abutting against the reflector.

[0013] According to some embodiments of this application, in a vehicle lighting assembly, the distance from the axis of each telescopic bar to the focal point of the corresponding reflector is the same.

[0014] According to some embodiments of this application, a vehicle lighting assembly includes a light-emitting device comprising: a circuit board disposed on the side of a heat sink facing a receiving cavity; and a lamp disposed on the circuit board and adapted to emit light toward the receiving cavity.

[0015] The vehicle according to an embodiment of this application is briefly described below.

[0016] The vehicle according to the embodiments of this application includes the headlight assembly of any of the above embodiments. Since the vehicle according to this embodiment is equipped with the headlight assembly of any of the above embodiments, the vehicle according to this application uses the above-mentioned headlight assembly. With the efficient heat dissipation effect formed by the external heat dissipation device structure of the headlight assembly, the headlight assembly can stably achieve the requirements of high optical effect, fully guarantee the lighting performance of the vehicle fog lights, meet the use needs of fog light optical lighting in vehicle driving scenarios, solve the technical problem that the original headlight structure cannot achieve high optical effect due to insufficient heat dissipation, and ensure that the lighting function of the vehicle fog lights meets the customer's expected standards. At the same time, the reflector of the headlight assembly can rotate independently relative to the light-emitting device to flexibly adjust the light output direction, which can adapt to the lighting adjustment needs of different driving conditions of the vehicle. Moreover, the dimming action will not affect the assembly and heat dissipation conduction state of the light-emitting device and the heat dissipation device. The heat dissipation device can continuously maintain efficient heat dissipation performance, avoid the headlight assembly from the situation of light performance decay due to poor heat dissipation, ensure the long-term stable operation of the headlight assembly, thereby improving the overall working reliability of the vehicle fog light system and providing continuous and stable fog light lighting support for vehicle driving.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a structural schematic diagram of a vehicle lighting assembly according to an embodiment of this application; Figure 2 This is a schematic diagram of a vehicle lighting assembly with multiple light-emitting devices according to an embodiment of this application.

[0019] Figure label: 100. Headlight assembly; 1. Shell; 11. Opening; 2. Cover body; 21. Receiving cavity; 3. Heat dissipation device; 4. Light-emitting device; 41. Circuit board; 42. Lamp fixture; 5. Reflecting device; 51. Reflecting surface; 52. Clearance hole; 53. Focal point; 6. Dimming device; 61. Drive unit; 62. Telescopic rod; 63. Abutment part. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] The following is for reference. Figures 1-2 A vehicle lighting assembly 100 according to an embodiment of this application is described.

[0022] According to an embodiment of this application, a vehicle headlight assembly 100 includes a housing 1, a cover 2, a heat dissipation device 3, a light-emitting device 4, and a reflector 5. The housing 1 has an opening 11. The cover 2 is disposed at the opening 11 and covers at least a portion of the opening 11. The cover 2 and the housing 1 together define a receiving cavity 21. The heat dissipation device 3 is disposed on the housing 1, and at least a portion of the outer periphery of the heat dissipation device 3 is exposed to the outside of the housing 1. The light-emitting device 4 is disposed on the side of the heat dissipation device 3 facing the receiving cavity 21. The light-emitting device 4 is adapted to emit light toward the receiving cavity 21. The reflector 5 is rotatably housed in the receiving cavity 21 and is directly opposite the light-emitting device 4. The reflector 5 is used to reflect the light emitted by the light-emitting device 4 toward the cover 2. The reflector 5 rotates relative to the light-emitting device 4 to adjust the light emission direction of the reflector 5 on the cover 2.

[0023] In the vehicle lamp assembly 100 of this application, an opening 11 is formed on the housing 1, and a cover 2 is disposed on the opening 11 and covers at least a portion of the opening 11. The housing 1 and the cover 2 together define a receiving cavity 21, providing an installation basis for the assembly of the heat dissipation device 3, the light-emitting device 4, and the reflector 5. The heat dissipation device 3 is disposed on the housing 1, and at least a portion of the outer periphery of the heat dissipation device 3 is exposed to the outside of the housing 1. This avoids the structural limitation in related technologies where the light source is directly fixed to the reflector 5, causing the two to move synchronously during dimming and making it impossible to install an external heat sink. Because the heat dissipation device 3 in this application is directly assembled on the housing 1 and does not form a linkage connection with the reflector 5, it does not need to move with the reflector 5. Therefore, it is possible to achieve an arrangement in which at least a portion of the outer periphery is exposed to the outside of the housing 1, creating structural conditions for efficient heat dissipation. The light-emitting device 4 is disposed on the side of the heat dissipation device 3 facing the receiving cavity 21. The light-emitting device 4 and the heat dissipation device 3 are assembled and fixed, and the two are in close contact and stable connection, so that the heat energy generated by the light-emitting device 4 during operation can be directly conducted to the heat dissipation device 3. At least part of the outer periphery of the heat dissipation device 3 is exposed outside the housing 1, and it can exchange heat with the external environment of the vehicle. Compared with the related technology where the built-in heat sink can only conduct limited heat exchange inside the receiving cavity 21, the heat dissipation device 3 in this application has a more direct and sufficient heat exchange with the external environment, and the heat exchange efficiency is greatly improved. It can quickly and effectively remove a large amount of heat energy generated by the light-emitting device 4, and solve the problem of poor heat dissipation effect caused by no heat sink or only built-in heat sink in the related technology, thereby meeting the customer's demand for higher optical effect.

[0024] Furthermore, the reflector 5 is rotatably housed within the receiving cavity 21 and faces the light-emitting device 4. The reflector 5 reflects the light emitted by the light-emitting device 4 back to the housing 2. The reflector 5 rotates relative to the light-emitting device 4 to adjust the light emission direction, so that the light-emitting device 4 does not need to move synchronously with the reflector 5 like the light source in related technologies, but remains fixedly connected to the heat dissipation device 3. This ensures the assembly relationship between the light-emitting device 4 and the heat dissipation device 3, ensuring the continuity and stability of heat conduction, and also realizes flexible adjustment of the light emission direction, meeting the optical dimming requirements of the vehicle lamp assembly 100. During the dimming process of the reflector 5, since both the light-emitting device 4 and the heat dissipation device 3 are fixed on the housing 1, the dimming action is completed independently by the reflector 5, which will not interfere with the fit between the light-emitting device 4 and the heat dissipation device 3. This avoids the situation where the connection between the two becomes loose or the contact is poor due to the dimming action, thereby ensuring that the heat dissipation device 3 can always efficiently receive and dissipate the heat generated by the light-emitting device 4, and continuously maintain good heat dissipation performance.

[0025] By separating the heat dissipation device 3 from the reflector 5, the heat dissipation device 3 can be independently installed externally to improve heat dissipation performance. The light-emitting device 4 is fixedly connected to the heat dissipation device 3 to ensure efficient heat transfer. The reflector 5 can rotate independently to achieve dimming function. This ensures that the vehicle lamp assembly 100 has stable and reliable working performance while meeting customers' requirements for higher optical effects, and extends the overall service life of the vehicle lamp assembly 100.

[0026] The vehicle lighting assembly 100 according to some embodiments of this application further includes: a dimming device 6, which is disposed on the housing 1 and extends at least partially into the receiving cavity 21, the dimming device 6 abutting against the reflector 5, and the dimming device 6 being adapted to drive the rotation of the reflector 5.

[0027] The dimming device 6 is mounted on the housing 1 and at least partially extends into the receiving cavity 21, abutting against the reflector 5. The housing 1 provides a stable mounting base for the dimming device 6, enabling it to be securely assembled and ensuring structural stability during the rotation of the reflector 5. The abutting cooperation between the dimming device 6 and the reflector 5 effectively ensures the controllability and adjustment accuracy of the reflector 5's rotation angle, meeting the control requirements of the vehicle lamp assembly 100 for different light emission directions.

[0028] According to some embodiments of this application, in a vehicle headlight assembly 100, the reflector 5 is configured as a reflector bowl, the inner wall of the reflector bowl has a reflective surface 51, and a clearance hole 52 is formed on the reflector bowl that is directly opposite to the light-emitting device 4, so as to guide the light from the light-emitting device 4 to the reflective surface 51.

[0029] It is understandable that after the light is emitted from the light-emitting device 4, it passes through the clearance hole 52 to reach the reflective surface 51, and is then directionally reflected by the reflective surface 51 to the cover 2.

[0030] The reflecting device 5 is constructed as a reflecting bowl. The reflecting surface 51 formed on the inner wall provides a suitable structural carrier for light reflection and can guide the light. An obstacle hole 52 is formed on the reflecting bowl, which is directly opposite to the light-emitting device 4. This allows the light emitted by the light-emitting device 4 to be directly guided to the reflecting surface 51 through the obstacle hole 52, avoiding light blockage caused by structural interference between the light-emitting device 4 and the reflecting bowl. This ensures that the light output by the light-emitting device 4 reaches the reflecting surface 51 completely, reducing light loss during transmission and significantly improving light utilization. The direct alignment between the light-emitting device 4 and the obstacle hole 52 ensures that the light emission direction corresponds to the receiving direction of the reflecting surface 51. The reflecting surface 51 can reflect the light, further enhancing the directionality and concentration of the emitted light. Meanwhile, the setting of the clearance hole 52 does not change the rotatable assembly property of the reflector bowl, nor does it disrupt the relative positional relationship between the reflector bowl, the light-emitting device 4, and the heat dissipation device 3. When the reflector bowl rotates for dimming under the drive of the dimming device 6, the clearance hole 52 always remains directly facing the fixedly assembled light-emitting device 4. This will not interfere with the stable heat conduction path between the light-emitting device 4 and the heat dissipation device 3, ensuring the continuous and efficient heat dissipation performance of the heat dissipation device 3, nor will it affect the driving accuracy of the dimming device 6 on the reflector bowl, ensuring the smoothness and accuracy of the dimming action.

[0031] According to some embodiments of this application, a vehicle headlight assembly 100 has a focal point 53 formed on a reflective surface 51, and a reflector bowl rotates about the focal point 53.

[0032] Understandably, the reflector bowl can rotate about an axis of rotation that is configured to pass through or be very close to the optical focal point 53. In this way, during the dimming process of the reflector bowl rotating, the changes in the optical characteristics of the light reflected by the reflective surface 51 are more controllable, which is beneficial to maintaining the stability of the light output quality and the dimming accuracy.

[0033] The focal point 53 formed on the reflective surface 51 is the optical point where the reflective surface 51 achieves light convergence and directional reflection. After the light emitted by the light-emitting device 4 is projected onto the reflective surface 51 through the clearance hole 52, the light can converge at the focal point 53, which is the core optical reference for the reflective surface 51 to achieve light reflection. The reflector bowl rotates around the focal point 53. During the rotation of the reflector bowl, the spatial positional relationship of each area of ​​the reflective surface 51 relative to the focal point 53 remains fixed. The angle reference of the light emitted by the light-emitting device 4 incident on the reflective surface 51 does not change. The light convergence effect of the reflective surface 51 remains stable. The adjustment of the reflection direction is always carried out around the fixed optical reference, avoiding light path disorder during the dimming process, greatly improving the accuracy of the light output direction adjustment, ensuring that the headlight assembly 100 can continuously and stably output light that meets the requirements of high optical effect. At the same time, the light convergence efficiency will not be lost due to the rotation of the reflector bowl, further improving the light utilization rate.

[0034] According to some embodiments of this application, a vehicle headlight assembly 100 includes a dimming device 6 comprising a drive unit 61, a telescopic rod 62, and an abutment part 63. The drive unit 61 is disposed on the side of the housing 1 away from the receiving cavity 21. One end of the telescopic rod 62 is connected to the drive unit 61, and at least a portion of the telescopic rod 62 extends into the receiving cavity 21. The telescopic rod 62 is configured as a sleeve structure or a threaded structure. The abutment part 63 is disposed at the other end of the telescopic rod 62 and abuts against the reflector.

[0035] The drive unit 61 of the dimming device 6 is located on the side of the housing 1 away from the receiving cavity 21. One end of the telescopic rod 62 is connected to the drive unit 61 and at least a portion of the telescopic rod 62 extends into the receiving cavity 21. The abutment part 63 is located at the other end of the telescopic rod 62 and abuts against the reflector bowl, so that the dimming device 6 forms a power transmission path from the outside to the inside of the housing 1. The power generated by the drive unit 61 can be directly transmitted to the telescopic rod 62, and then acted on the reflector bowl through the abutment part 63, providing power support for the adjustment of the reflector bowl angle.

[0036] The telescopic rod 62 is constructed as a sleeve structure or a threaded structure. The telescopic rod 62 can change its overall length through the extension and retraction of its own structure. Then, through the abutment part 63, it pushes or pulls the reflector bowl, causing the reflector bowl to rotate around the focal point 53. The extension and retraction adjustment of the sleeve structure or the threaded structure can realize the control of the length of the telescopic rod 62, corresponding to the adjustment of the rotation angle of the reflector bowl, improving the accuracy of the light emission direction adjustment of the reflector bowl, and meeting the dimming requirements of the vehicle lamp assembly 100 for high optical effect. At the same time, the structural form of the sleeve structure or the threaded structure is adapted to the assembly requirements of the telescopic rod 62 across the inside and outside of the housing 1, taking into account the stability of power transmission and the flexibility of extension and retraction adjustment, and ensuring the smooth execution of the dimming action.

[0037] According to some embodiments of this application, a vehicle lighting assembly 100, a light-emitting device 4 and a reflective device 5 are configured as a plurality of corresponding devices.

[0038] The light-emitting device 4 and the reflective device 5 are configured in a one-to-one correspondence, so that the light emitted by each light-emitting device 4 can be processed by the reflective device 5. The light transmission and reflection processes do not interfere with each other, effectively avoiding the light path superposition disorder that may occur when multiple light sources share a single reflective device 5, thus improving the overall optical effect. The synchronous operation of multiple light-emitting devices 4 can significantly improve the total light output intensity of the vehicle lamp assembly 100. Each reflective device 5 uses its own inner wall reflective surface 51 to directionally converge and reflect the light from the corresponding light-emitting device 4, so that multiple beams of light form precise light output paths. After being superimposed, they can expand the light output coverage of the vehicle lamp, while maintaining the concentration and directionality of the light in each area, further meeting the requirements of higher standard optical effects and adapting to the diverse requirements of vehicle lighting intensity and coverage in different driving scenarios.

[0039] According to some embodiments of this application, a vehicle headlight assembly 100 includes a dimming device 6 comprising a drive unit 61, a telescopic rod 62, and an abutment part 63. The drive unit 61 is disposed on the side of the housing 1 away from the receiving cavity 21. The telescopic rod 62 is configured as a plurality of ones corresponding one-to-one with the reflector 5. One end of each telescopic rod 62 is connected to the drive unit 61, and at least a portion of the telescopic rod 62 extends into the receiving cavity 21. The telescopic rod 62 is configured as a sleeve structure or a threaded structure. The abutment part 63 is disposed at the other end of the telescopic rod 62 and abuts against the reflector bowl.

[0040] The telescopic rods 62 of the dimming device 6 are configured in multiple ways, each corresponding to one of the reflective devices 5. One end of each telescopic rod 62 is connected to a drive unit 61 located on the side of the housing 1 opposite to the receiving cavity 21, and the other end abuts against the corresponding reflector bowl via an abutment part 63. This allows each reflective device 5 to receive power from the drive unit 61. The power generated by the drive unit 61 can be independently and synchronously transmitted to the corresponding reflector bowl through the telescopic rods 62, avoiding problems such as uneven power distribution and asynchronous adjustment that may occur when a single telescopic rod 62 drives multiple reflective devices 5. This ensures the consistency and stability of the adjustment of multiple reflective devices 5. Each telescopic rod 62 is constructed as a sleeve structure or a threaded structure. Its precise telescopic characteristics, combined with the one-to-one assembly relationship, allow the rotation angle of each reflector bowl to be controlled through the corresponding telescopic rod 62.

[0041] The structural design of multiple telescopic rods 62 corresponding one-to-one with the reflective devices 5 enables the dimming device 6, reflective devices 5, light-emitting devices 4, and heat dissipation device 3 to form a more refined collaborative working system. The drive unit 61 controls the multiple reflective devices 5 through the multiple telescopic rods 62. Each reflective device 5 maintains a stable optical path and does not interfere with each other during the dimming process. The heat dissipation device 3 continuously provides efficient heat dissipation support for the multiple light-emitting devices 4, ultimately achieving synergy in optimizing the optical performance of multiple optical paths, accurately dimming the multiple reflective devices 5, and stably dissipating heat from the multiple light-emitting devices 4. The vehicle lamp assembly 100 can not only improve the overall light output effect through the synergy of the multiple light-emitting devices 4 and the multiple reflective devices 5, but also adapt to the lighting needs of different driving scenarios through the independent adjustment of each telescopic rod 62, while ensuring the stability and reliability of long-term operation, fully meeting the needs of high optical effect and diversified use.

[0042] According to some embodiments of this application, in a vehicle lighting assembly 100, the distance from the axis of each telescopic rod 62 to the focal point 53 of the corresponding reflector 5 of the telescopic rod 62 is the same.

[0043] The distance from the axis of each telescopic rod 62 to the focal point 53 of the corresponding reflector 5 is the same. The reflector 5 rotates around the focal point 53, so that the driving torque of each telescopic rod 62 acting on the corresponding reflector bowl through the abutment part 63 remains uniform. The driving force generated by the extension and retraction of each telescopic rod 62 is consistent with the lever arm length formed by the corresponding focal point 53, so there will be no problem of uneven driving torque caused by lever arm deviation, ensuring that the rotational force transmission of each telescopic rod 62 on the corresponding reflector bowl is consistent.

[0044] The uniformity of torque enables each reflector bowl to rotate synchronously and at equal angles according to the extension and retraction of the telescopic rod 62. After the power output from the drive unit 61 is transmitted through each telescopic rod 62, the rotation angle of each reflector bowl can match the extension and retraction of the telescopic rod 62, and there will be no adjustment deviation of some reflector bowls rotating too large or too small. This allows each reflector bowl to synchronously adjust the reflection direction of the light from the corresponding light-emitting device 4, greatly improving the consistency of the light output angle of multiple light paths. The uniformity of the overall light output effect of the headlight assembly 100 is effectively guaranteed, and the overall optical effect after the superposition of each light path is more stable, fully meeting the core requirement of high optical effect for optical path consistency.

[0045] The drive unit 61 can use a unified standard to control the extension and retraction of all telescopic rods 62 without setting differentiated control parameters, which simplifies the overall control logic of the dimming device 6 and further improves the convenience of dimming operation.

[0046] like Figure 2 The above is a schematic diagram of the structure of the vehicle lamp assembly 100 having multiple light-emitting devices 4. The distance from the axis of one telescopic rod 62 to the focal point 53 of the reflector 5 corresponding to the telescopic rod 62 is L1, and the distance from the axis of another telescopic rod 62 to the focal point 53 of the reflector 5 corresponding to the telescopic rod 62 is L2, and L1=L2.

[0047] According to some embodiments of this application, a vehicle lighting assembly 100 includes a light-emitting device 4 comprising a circuit board 41 and a lamp 42. The circuit board 41 is disposed on the side of the heat dissipation device 3 facing the receiving cavity 21, and the lamp 42 is disposed on the circuit board 41 and adapted to emit light toward the receiving cavity 21.

[0048] The circuit board 41 is located on the side of the heat dissipation device 3 facing the receiving cavity 21. The lamp 42 is mounted on the circuit board 41 and emits light towards the receiving cavity 21, so that the lamp 42 and the heat dissipation device 3 form an assembly and heat conduction link through the circuit board 41. As an intermediate connecting carrier, the circuit board 41 provides a mounting base for the lamp 42, ensuring that the lamp 42 can be positioned and maintain a stable light emission direction, forming a precise alignment with the clearance hole 52 of the reflector 5, ensuring that the light can be smoothly projected onto the reflector 51 through the clearance hole 52. On the other hand, the circuit board 41 has good thermal conductivity. The heat generated by the lamp 42 during operation can be transferred to the tightly fitted circuit board 41 first, and then quickly conducted by the circuit board 41 to the heat dissipation device 3. The heat transfer path is continuous and has sufficient contact, effectively reducing the loss of heat during the transfer process. Combined with the structure of the heat dissipation device 3, at least part of its outer periphery is exposed to the outside of the housing 1, the heat generated by the lamp 42 can be quickly dissipated to the external environment, significantly improving the overall heat dissipation efficiency of the light-emitting device 4, providing temperature protection for the high-power stable operation of the lamp 42, and helping to achieve high optical effects.

[0049] The circuit board 41 enables the installation of the lamp 42 to work in synergy with the heat dissipation function of the heat sink 3. The lamp 42 is fixed to the heat sink 3 via the circuit board 41, which avoids uneven contact problems that may occur when the lamp 42 is directly assembled with the heat sink 3. The large-area bonding of the circuit board 41 also enhances the heat conduction effect, ensuring that the heat generated by the lamp 42 can be evenly transferred to the heat sink 3, preventing local overheating that could lead to a decrease in the luminous efficiency or damage to the lamp 42. At the same time, the structural characteristics of the circuit board 41 are adapted to the assembly requirements of multiple light-emitting devices 4. When there are multiple light-emitting devices 4, multiple circuit boards 41 can be stably bonded to the heat sink 3 respectively. The heat of each lamp 42 can be independently and efficiently conducted to the heat sink 3 through the corresponding circuit board 41. The heat dissipation effect of a single lamp 42 will not be affected by the increase in the number of lamps 42, ensuring the reliability of heat dissipation when multiple lamps 42 are working simultaneously.

[0050] In addition, the lamp 42 is fixed on the circuit board 41, and the circuit board 41 is fixedly connected to the heat dissipation device 3, so that the lamp 42 remains stationary during the dimming process of the reflector 5 rotating, and will not be displaced with the rotation of the reflector 5. This ensures the stability of the relative positional relationship between the lamp 42 and the reflector 5, the clearance hole 52, and the focal point 53 of the reflective surface 51, and ensures the accuracy and consistency of the light path. It also avoids the interference of the dimming action on the heat conduction path between the lamp 42 and the heat dissipation device 3, and maintains the continuous and efficient heat dissipation performance of the heat dissipation device 3.

[0051] The vehicle according to an embodiment of this application is briefly described below.

[0052] The vehicle according to the embodiments of this application includes the headlight assembly 100 of any of the above embodiments. Since the vehicle according to this embodiment is equipped with the headlight assembly 100 of any of the above embodiments, the vehicle according to this application adopts the headlight assembly 100. With the efficient heat dissipation effect formed by the structure layout of the external heat dissipation device 3 of the headlight assembly 100, the headlight assembly 100 can stably achieve the high optical effect requirements, fully guarantee the lighting performance of the vehicle fog lights, meet the use needs of fog light optical lighting in vehicle driving scenarios, solve the technical problem that the original headlight structure cannot achieve high optical effect due to insufficient heat dissipation, and ensure that the lighting function of the vehicle fog lights meets the customer's expected standards. Meanwhile, the reflector 5 of the headlight assembly 100 can rotate independently relative to the light-emitting device 4 to flexibly adjust the light output direction, which can adapt to the lighting adjustment needs of different driving conditions of the vehicle. Moreover, the dimming action will not affect the assembly and heat dissipation state of the light-emitting device 4 and the heat dissipation device 3. The heat dissipation device 3 can continuously maintain efficient heat dissipation performance, avoid the headlight assembly 100 from experiencing light performance degradation due to poor heat dissipation, ensure the long-term stable operation of the headlight assembly 100, thereby improving the overall reliability of the vehicle fog light system and providing continuous and stable fog light lighting support for vehicle driving.

[0053] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0054] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0055] In the description of this application, "multiple" means two or more.

[0056] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0057] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle lighting assembly, characterized in that, include: The housing (1) has an opening (11) formed thereon. A cover (2) is disposed at the opening (11) and covers at least a portion of the opening (11), the cover (2) and the housing (1) together defining a receiving cavity (21). A heat dissipation device (3) is disposed on the housing (1), and at least a portion of the outer periphery of the heat dissipation device (3) is exposed to the outside of the housing (1); A light-emitting device (4) is disposed on the side of the heat dissipation device (3) facing the receiving cavity (21), and the light-emitting device (4) is adapted to emit light toward the receiving cavity (21); A reflective device (5) is rotatably housed in the receiving cavity (21) and is directly opposite the light-emitting device (4). The reflective device (5) is used to reflect the light emitted by the light-emitting device (4) toward the cover (2). The reflective device (5) rotates relative to the light-emitting device (4) to adjust the light emission direction of the reflective device (5) on the cover (2).

2. The vehicle lighting assembly according to claim 1, characterized in that, Also includes: A dimming device (6) is disposed on the housing (1) and extends at least partially into the receiving cavity (21). The dimming device (6) abuts against the reflecting device (5) and is adapted to drive the rotation of the reflecting device (5).

3. The vehicle lighting assembly according to claim 2, characterized in that, The reflective device (5) is constructed as a reflective bowl, and a reflective surface (51) is formed on the inner wall of the reflective bowl. An obstacle hole (52) is formed on the reflective bowl that is directly opposite to the light-emitting device (4) so ​​as to guide the light from the light-emitting device (4) to the reflective surface (51).

4. The vehicle lighting assembly according to claim 3, characterized in that, A focal point (53) is formed on the reflective surface (51), and the reflective bowl rotates around the focal point (53).

5. The vehicle lighting assembly according to claim 3, characterized in that, The dimming device (6) includes: A drive unit (61) is provided on the side of the housing (1) away from the receiving cavity (21); Telescopic rod (62), one end of which is connected to the drive unit (61), and at least a portion of which extends into the receiving cavity (21), wherein the telescopic rod (62) is constructed as a sleeve structure or a threaded structure; The abutting part (63) is provided at the other end of the telescopic rod (62) and abuts against the reflector bowl.

6. The vehicle lighting assembly according to claim 4, characterized in that, The light-emitting device (4) and the reflective device (5) are configured as multiple devices in a one-to-one correspondence.

7. The vehicle lighting assembly according to claim 6, characterized in that, The dimming device (6) includes: A drive unit (61) is provided on the side of the housing (1) away from the receiving cavity (21); Telescopic rod (62), the telescopic rod (62) is constructed as a plurality of ones corresponding one-to-one with the reflective device (5), one end of each telescopic rod (62) is connected to the drive unit (61), and at least part of the telescopic rod (62) extends into the receiving cavity (21), the telescopic rod (62) is constructed as a sleeve structure or a threaded structure; The abutting part (63) is provided at the other end of the telescopic rod (62) and abuts against the reflector bowl.

8. The vehicle lighting assembly according to claim 7, characterized in that, The distance from the axis of each telescopic rod (62) to the focal point (53) of the corresponding reflective device (5) is the same.

9. The vehicle lighting assembly according to any one of claims 1-8, characterized in that, The light-emitting device (4) includes: Circuit board (41), the circuit board (41) is disposed on the side of the heat dissipation device (3) facing the receiving cavity (21); A lamp (42) is disposed on the circuit board (41) and is adapted to emit light toward the receiving cavity (21).

10. A vehicle, characterized in that, Includes the vehicle lighting assembly (100) as described in any one of claims 1-9.

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