Vehicle lighting device

Abstract

The present invention discloses a vehicle lighting device, which relates to the field of vehicle lighting devices, and comprises a lighting lamp housing, wherein the lighting lamp housing comprises a lower rectangular frame and an upper rectangular frame which are spliced ​​to each other, an internal mounting plate is arranged at the position where the lower rectangular frame and the upper rectangular frame are spliced ​​to each other, and a lighting mechanism and a heat dissipation mechanism are arranged on the lighting lamp housing. In the present invention, by arranging the heat dissipation mechanism on the lighting lamp housing, external cooling air can be separated from the internal structure of the lighting lamp housing, but the external cooling air can discharge the heat inside the lighting lamp housing evenly and in large volume, thereby ensuring high heat dissipation while not easily adding particle dust to the inside of the lighting lamp housing, thereby maintaining a long service life of the lighting lamp housing.

Description

Technical Field

[0001] The present invention relates to the field of vehicle lighting devices, and in particular to a vehicle lighting device. Background Art

[0002] The heat dissipation of the headlight is poor during use. When the headlight is used for a long time, the brightness of the headlight will decrease under high temperature, and the service life will also be relatively reduced. The reason for the poor heat dissipation is usually that there are a lot of dust particles in the headlight, which makes it difficult for the heat to dissipate. When the headlight is used with the car and used at high speed, the dust particles in the air can easily enter the interior of the headlight structure through the heat dissipation holes of the headlight, causing heat to easily accumulate inside the headlight structure. Therefore, it is necessary to invent a vehicle lighting device to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a vehicle lighting device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a vehicle lighting device, comprising a lighting lamp housing, the lighting lamp housing comprising a lower rectangular frame and an upper rectangular frame spliced ​​to each other, an internal mounting plate being arranged at the position where the lower rectangular frame and the upper rectangular frame are spliced ​​to each other, a lighting mechanism and a heat dissipation mechanism being arranged on the lighting lamp housing, the lighting mechanism comprising a base and a reflector fixedly mounted on the surface of the base, a lamp holder being arranged around the reflector, and an LED lamp sheet being mounted on the surface of the lamp holder;

[0005] The heat dissipation mechanism includes a metal heat dissipation strip, which is fixed on the surface of the internal mounting plate. A lower protrusion strip is integrally provided on one side of the metal heat dissipation strip close to the internal mounting plate, and the lower protrusion strip extends to the bottom of the internal mounting plate. An independent wind cavity for allowing external air to enter to achieve heat dissipation is provided inside the metal heat dissipation strip. The heat inside the lighting lamp housing is transferred to the independent wind cavity through the wall structure of the metal heat dissipation strip and is discharged by the air.

[0006] Preferably, the independent air cavity is provided with a cleaning part for cleaning particulate dust on the inner wall of the independent air cavity, the cleaning part includes a spring, a base and a cleaning mechanism, the base is fixedly welded to the inner wall of the independent air cavity, multiple groups of bases are provided, and the multiple groups of bases are equidistantly distributed, multiple groups of springs are provided, and the multiple groups of springs are respectively fixedly welded to both sides of the corresponding bases, and the cleaning mechanism is installed between two corresponding groups of springs.

[0007] Preferably, the cleaning mechanism includes a cleaning plate and a cleaning cotton layer, the cleaning cotton layer is fixed on the surface of the cleaning plate, the cleaning plate is a rectangular frame structure, the cleaning plate is attached to an inner wall of an independent air cavity, the cleaning cotton layer is movably attached to the inner wall of the independent air cavity, and the spring is fixedly welded to the side of the cleaning plate.

[0008] Preferably, the cleaning mechanism includes a limiting shell, a sphere and a cotton sleeve, the limiting shell is an annular structure, the sphere is rotatably arranged inside the limiting shell, the cotton sleeve is fixedly arranged on the outer ring of the sphere, one end of the cotton sleeve is movably fitted on the inner wall of the independent air cavity, and the end of the spring is fixedly welded to the outer ring of the limiting shell.

[0009] Preferably, an external heat dissipation channel and an internal heat dissipation channel are provided in the internal layer structure of the internal mounting plate, the external heat dissipation channel surrounds the outside of the internal heat dissipation channel, the external heat dissipation channel is connected with one end of the independent wind cavity, and the internal heat dissipation channel is connected with the other end of the independent wind cavity, the internal heat dissipation channel is provided with a wind concentration hole connected to the outside of the lighting lamp housing, and a circulating heat dissipation component is matchedly provided on the outside of the lighting lamp housing.

[0010] Preferably, the circulating heat dissipation component includes an air tank, a metal heat sink, and an air compression pump. The air compression pump is provided with a fourth pipe, a third pipe, a first pipe, and a second pipe. The end of the fourth pipe is connected to the interior of the external heat dissipation channel, the end of the third pipe is connected to the wind concentration hole, the end of the first pipe and the end of the second pipe are both connected to the interior of the gas tank, the metal heat sink is fixedly installed on the gas tank, one end of the metal heat sink is located outside the gas tank, and the other end of the metal heat sink is located inside the gas tank. The metal heat sink is provided in multiple groups, and the multiple groups of metal heat sinks are distributed at equal distances.

[0011] Preferably, the base is mounted on the internal mounting plate by a fixing assembly, a rectangular groove is provided in the middle of the internal mounting plate, the fixing assembly comprises a connecting plate, a clamping plate, fixing screws, a cylindrical structure and an outer retaining structure, the connecting plate is fixedly welded to the side of the lamp holder, the clamping plate is integrally arranged at the end of the connecting plate away from the lamp holder, the clamping plate is in a semi-annular structure, the cylindrical structure is fixedly mounted on the upper surface of the internal mounting plate by fixing screws, the outer retaining structure is fixedly welded to the upper surface of the internal mounting plate, the outer retaining structure is in a semi-annular structure, the arc-shaped opening of the outer retaining structure faces the side of the lamp holder, and a semi-annular channel is formed between the outer retaining structure and the cylindrical structure for the clamping plate to be engaged and fixed.

[0012] Preferably, the metal heat dissipation strip includes an L-shaped structure plate and a straight structure plate, and the L-shaped structure plate and the straight structure plate are each provided in multiple groups, and the multiple groups of straight structure plates are equidistantly distributed between the outer side of the lamp holder and the inner side of the lighting lamp housing, and the multiple groups of L-shaped structure plates are equidistantly distributed between the outer corners of the lamp holder and the inner corners of the lighting lamp housing.

[0013] Preferably, adjacent lower protrusion strips form a lower heat dissipation gap, and adjacent metal heat dissipation strips form an upper heat dissipation gap.

[0014] Preferably, a power bus is provided at the bottom of the base.

[0015] Technical effects and advantages of the present invention:

[0016] 1. A vehicle lighting device of the present invention comprises a lighting lamp housing, wherein the lighting lamp housing comprises a lower rectangular frame and an upper rectangular frame spliced ​​to each other, an internal mounting plate is provided at the position where the lower rectangular frame and the upper rectangular frame are spliced ​​to each other, and a lighting mechanism and a heat dissipation mechanism are provided on the lighting lamp housing. In the present invention, by providing the heat dissipation mechanism on the lighting lamp housing, the external cooling wind can be separated from the internal structure of the lighting lamp housing, but the external cooling wind can discharge the heat inside the lighting lamp housing uniformly and in large volume, thereby ensuring high heat dissipation and not easily adding particles and dust to the inside of the lighting lamp housing, thereby maintaining a long service life of the lighting lamp housing;

[0017] 2. In a vehicle lighting device of the present invention, external wind enters through the independent wind cavity inside the metal heat dissipation strip, and the heat inside the lighting lamp housing is transferred to the inner wall structure of the metal heat dissipation strip through the outer wall structure of the metal heat dissipation strip. When the wind passes through the independent wind cavity, the heat is quickly taken out. The heat transferred to the metal heat dissipation strip can be further transferred to the lower raised strip and naturally dissipated through the wind at the bottom of the lighting lamp housing. The wind dissipates the heat of the lighting lamp housing as a whole after passing through the independent wind cavity, thereby avoiding the phenomenon of bringing particles of dust into the lighting lamp housing;

[0018] 3. In a vehicle lighting device of the present invention, the cleaning part in the independent air cavity can be used to clean the dust particles on the inner wall of the independent air cavity, so as to avoid the phenomenon that the dust particles gather on the inner wall of the independent air cavity to cause blockage or reduce the heat dissipation effect, and the heat dissipation of the entire lighting lamp housing can be maintained for a long time, that is, there is no need to worry about the subsequent heat dissipation of the lighting lamp housing being affected by the dust particles;

[0019] 4. In a vehicle lighting device of the present invention, when wind passes through the interior of an independent air cavity, the wind pushes the cleaning cotton layer to move in the independent air cavity due to the propulsion of the wind. Due to the spring restrictions on both sides of the cleaning plate, the cleaning plate will make reciprocating motion along the inner wall of the independent air cavity, thereby utilizing the cleaning cotton layer on the surface of the cleaning plate to scrape the inner wall of the independent air cavity, thereby keeping the inner wall of the independent air cavity clean, thereby avoiding the phenomenon that blockage in the independent air cavity causes the overall heat dissipation of the lighting lamp housing to decrease. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The figure is a schematic structural diagram of a lighting device for a vehicle according to the present invention.

[0021] Figure 2 The figure is a schematic diagram of the bottom structure of a lighting device for a vehicle according to the present invention.

[0022] Figure 3 The present invention is a top view of a vehicle lighting device.

[0023] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0024] Figure 5 It is a schematic diagram of the structure of the heat dissipation component of the present invention.

[0025] Figure 6 A cross-sectional view of the metal heat dissipation strip of the present invention.

[0026] Figure 7 Another cross-sectional view of the metal heat dissipation strip of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the cleaning mechanism in the second embodiment of the present invention.

[0028] In the figure: lighting lamp housing 1, reflector 2, internal mounting plate 3, metal heat dissipation strip 4, wind concentration hole 5, upper heat dissipation gap 6, lamp holder 7, fixing assembly 8, base 9, lower heat dissipation gap 10, lower raised strip 11, lower rectangular frame 12, upper rectangular frame 13, power bus 14, LED lamp sheet 15, fixing screw 16, cylindrical structure 17, outer retaining structure 18, connecting plate 19, card plate 20, gas tank 21, air compression pump 22, first pipeline 23, second pipeline 24, third pipeline 25, fourth pipeline 26, metal heat sink 27, independent wind cavity 28, outer heat dissipation channel 29, inner heat dissipation channel 30, cleaning plate 31, cleaning cotton layer 32, spring 33, base 34, limit shell 35, sphere 36, cotton sleeve 37. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1

[0031] The present invention provides Figure 1-7A vehicle lighting device shown in the figure comprises a lighting lamp housing 1, the lighting lamp housing 1 comprises a lower rectangular frame 12 and an upper rectangular frame 13 spliced ​​to each other, an internal mounting plate 3 is arranged at the position where the lower rectangular frame 12 and the upper rectangular frame 13 are spliced ​​to each other, a lighting mechanism and a heat dissipation mechanism are arranged on the lighting lamp housing 1, the lighting mechanism comprises a base 9 and a reflector 2 fixedly mounted on the surface of the base 9, a lamp holder 7 is arranged around the reflector 2, and an LED light sheet 15 is installed on the surface of the lamp holder 7;

[0032] The heat dissipation mechanism includes a metal heat dissipation strip 4, which is fixed on the surface of the internal mounting plate 3. A lower protrusion strip 11 is integrally provided on one side of the metal heat dissipation strip 4 close to the internal mounting plate 3. The lower protrusion strip 11 extends to the bottom of the internal mounting plate 3. An independent wind cavity 28 is provided inside the metal heat dissipation strip 4 for allowing external air to enter to achieve heat dissipation. The heat inside the lighting lamp housing 1 is transferred to the independent wind cavity 28 through the wall structure of the metal heat dissipation strip 4 and is discharged by the air.

[0033] The independent air cavity 28 is provided with a cleaning part for cleaning the dust particles on the inner wall of the independent air cavity 28. The cleaning part includes a spring 33, a base 34 and a cleaning mechanism. The base 34 is fixedly welded on the inner wall of the independent air cavity 28. The base 34 is provided in multiple groups, and the multiple groups of bases 34 are distributed at equal distances. The spring 33 is provided in multiple groups, and the multiple groups of springs 33 are respectively fixedly welded on both sides of the corresponding base 34. The cleaning mechanism is installed between the two corresponding groups of springs 33.

[0034] In the present invention, a heat dissipation mechanism is provided on the lamp housing 1, so that the external cooling air can be separated from the internal structure of the lamp housing 1, while the external cooling air can discharge the heat inside the lamp housing 1 evenly and in large quantities, thereby ensuring high heat dissipation while not easily adding particulate dust to the inside of the lamp housing 1, thereby maintaining a long service life of the lamp housing 1.

[0035] During operation, the external wind enters through the independent wind cavity 28 inside the metal heat dissipation strip 4, and the heat inside the lamp housing 1 is transferred to the inner wall structure of the metal heat dissipation strip 4 through the outer wall structure of the metal heat dissipation strip 4. The wind quickly takes out the heat when passing through the independent wind cavity 28, and the heat transferred to the metal heat dissipation strip 4 can be further transferred to the lower raised strip 11, and naturally dissipated through the wind at the bottom of the lamp housing 1. The wind dissipates the heat of the lamp housing 1 as a whole after passing through the independent wind cavity 28, thereby avoiding the phenomenon of bringing particles of dust into the lamp housing 1.

[0036] Furthermore, the cleaning part in the independent wind cavity 28 can be used to clean the dust particles on the inner wall of the independent wind cavity 28, so as to prevent the dust particles from gathering on the inner wall of the independent wind cavity 28 and causing blockage or reducing the heat dissipation effect, and can maintain the overall heat dissipation of the lighting lamp housing 1 for a long time. In other words, there is no need to worry about the subsequent heat dissipation of the lighting lamp housing 1 being affected by the dust particles.

[0037] The cleaning mechanism includes a cleaning plate 31 and a cleaning cotton layer 32. The cleaning cotton layer 32 is fixed on the surface of the cleaning plate 31. The cleaning plate 31 is a rectangular frame structure. The cleaning plate 31 is attached to the inner wall of the independent air cavity 28. The cleaning cotton layer 32 is movably attached to the inner wall of the independent air cavity 28. The spring 33 is fixedly welded to the side of the cleaning plate 31.

[0038] Furthermore, when the wind passes through the inside of the independent wind cavity 28, due to the pushing effect of the wind, the wind pushes the cleaning cotton layer 32 to move in the independent wind cavity 28. Due to the restriction of the springs 33 on both sides of the cleaning plate 31, the cleaning plate 31 will make reciprocating motion along the inner wall of the independent wind cavity 28, so that the cleaning cotton layer 32 on the surface of the cleaning plate 31 can scrape the inner wall of the independent wind cavity 28, so that the inner wall of the independent wind cavity 28 is kept clean, thereby avoiding the blockage in the independent wind cavity 28 causing the overall heat dissipation of the lighting lamp housing 1 to decrease.

[0039] An external heat dissipation channel 29 and an internal heat dissipation channel 30 are arranged in the internal layer structure of the internal mounting plate 3. The external heat dissipation channel 29 surrounds the outside of the internal heat dissipation channel 30. The external heat dissipation channel 29 is connected to one end of the independent wind cavity 28, and the internal heat dissipation channel 30 is connected to the other end of the independent wind cavity 28. The internal heat dissipation channel 30 is provided with a wind concentration hole 5 connected to the outside of the lighting lamp housing 1, and a circulating heat dissipation component is matched on the outside of the lighting lamp housing 1.

[0040] Among them, when the air compression pump 22 is started, the gas inside the gas tank 21 can be transported to the external heat dissipation channel 29 through the second pipe 24 and the fourth pipe 26 in sequence, and then enter the independent wind cavity 28 through one end thereof, and be discharged from the other end of the independent wind cavity 28. The gas discharged from the other end of the independent wind cavity 28 is gathered to the position of the wind concentration hole 5 through the internal heat dissipation channel 30. The gas gathered at the position of the wind concentration hole 5 is discharged into the gas tank 21 through the third pipe 25 and the first pipe 23 in sequence for standby. When the amount of gas in the gas tank 21 is insufficient, the external air is supplemented by the air compressor provided on the gas tank 21. The air enters the gas tank 21 and is compressed and stored. During the compression process, the heat in the air can be quickly dissipated, so that the temperature of the circulating air is kept low, and the lighting lamp housing 1 can be fully cooled.

[0041] The heat in the gas inside the gas tank 21 can be transferred to the outside of the gas tank 21 through the metal heat sink 27, thereby achieving the purpose of heat dissipation. The above-mentioned air compressor is not shown in the figure and is a common existing structure, so it will not be described here.

[0042] The circulating heat dissipation component includes an air tank 21, a metal heat sink 27, and an air compression pump 22. The air compression pump 22 is provided with a fourth pipe 26, a third pipe 25, a first pipe 23, and a second pipe 24. The end of the fourth pipe 26 is connected to the interior of the external heat dissipation channel 29, the end of the third pipe 25 is connected to the wind concentration hole 5, the end of the first pipe 23 and the end of the second pipe 24 are both connected to the interior of the air tank 21, and the metal heat sink 27 is fixedly installed on the air tank 21, one end of the metal heat sink 27 is located outside the air tank 21, and the other end of the metal heat sink 27 is located inside the air tank 21. The metal heat sink 27 is provided in multiple groups, and the multiple groups of metal heat sinks 27 are distributed at equal distances.

[0043] The base 9 is mounted on the internal mounting plate 3 through a fixing assembly 8. A rectangular groove is provided in the middle of the internal mounting plate 3. The fixing assembly 8 includes a connecting plate 19, a clamping plate 20, a fixing screw 16, a cylindrical structure 17 and an outer retaining structure 18. The connecting plate 19 is fixedly welded to the side of the lamp holder 7. The clamping plate 20 is integrally arranged at the end of the connecting plate 19 away from the lamp holder 7. The clamping plate 20 is in a semi-annular structure. The cylindrical structure 17 is fixedly mounted on the upper surface of the internal mounting plate 3 through the fixing screws 16. The outer retaining structure 18 is fixedly welded to the upper surface of the internal mounting plate 3. The outer retaining structure 18 is in a semi-annular structure. The arc-shaped opening of the outer retaining structure 18 faces the side of the lamp holder 7. A semi-annular channel is formed between the outer retaining structure 18 and the cylindrical structure 17 for the clamping plate 20 to be engaged and fixed.

[0044] In the device, the base 9 is quickly connected and fixed on the internal mounting plate 3 through the fixing assembly 8, which is convenient for disassembly, assembly and maintenance, and the position of the rectangular groove on the internal mounting plate 3 is sealed by a rubber ring to maintain the sealing inside the lighting lamp housing 1.

[0045] The metal heat dissipation strip 4 includes an L-shaped plate and a straight-line plate. Both the L-shaped plate and the straight-line plate are provided in multiple groups. The multiple groups of straight-line plates are equidistantly distributed between the outer side of the lamp holder 7 and the inner side of the lamp housing 1. The multiple groups of L-shaped plates are equidistantly distributed between the outer corners of the lamp holder 7 and the inner corners of the lamp housing 1.

[0046] Multiple groups of L-shaped plates and straight-line plates are provided, so as to dissipate heat evenly and quickly for the lamp housing 1 .

[0047] The adjacent lower protruding strips 11 form a lower heat dissipation gap 10 , and the adjacent metal heat dissipation strips 4 form an upper heat dissipation gap 6 .

[0048] An electrical bus 14 is provided at the bottom of the base 9 .

[0049] Embodiment 2

[0050] The present invention provides Figure 1-8 A vehicle lighting device is shown, and the cleaning mechanism includes a limit shell 35, a sphere 36 and a cotton sleeve 37. The limit shell 35 is annular in structure, and the sphere 36 is rotatably arranged inside the limit shell 35. The cotton sleeve 37 is fixedly sleeved on the outer ring of the sphere 36. One end of the cotton sleeve 37 is movably fitted on the inner wall of the independent air cavity 28, and the end of the spring 33 is fixedly welded to the outer ring of the limit shell 35.

[0051] When wind passes through the inside of the independent wind cavity 28, due to the pushing effect of the wind, the wind pushes the limit shell 35 to move in the independent wind cavity 28. Due to the restriction of the springs 33 on both sides of the limit shell 35, the limit shell 35 will make reciprocating motion along the inner wall of the independent wind cavity 28. When the limit shell 35 makes reciprocating motion, the ball 36 rolls in the limit shell 35, and the cotton sleeve 37 on the surface of the ball 36 scrapes the inner wall of the independent wind cavity 28. When the ball 36 rolls, the cleanliness of the outer surface of the cotton sleeve 37 is ensured, so that the cleaning mechanism can maintain real-time cleanliness and maintain efficient cleaning of the inner wall of the independent wind cavity 28.

Claims

1. A vehicle lighting device, comprising a lighting lamp housing (1), the lighting lamp housing (1) comprising a lower rectangular frame (12) and an upper rectangular frame (13) spliced ​​to each other, an internal mounting plate (3) being arranged at a position where the lower rectangular frame (12) and the upper rectangular frame (13) are spliced ​​to each other, characterized in that: The lighting lamp housing (1) is provided with a lighting mechanism and a heat dissipation mechanism, the lighting mechanism comprising a base (9) and a reflector (2) fixedly mounted on the surface of the base (9), a lamp holder (7) is arranged around the reflector (2), and an LED light sheet (15) is mounted on the surface of the lamp holder (7); The heat dissipation mechanism comprises a metal heat dissipation strip (4), the metal heat dissipation strip (4) is fixed on the surface of the internal mounting plate (3), a lower protrusion strip (11) is integrally provided on one side of the metal heat dissipation strip (4) close to the internal mounting plate (3), the lower protrusion strip (11) extends to the bottom of the internal mounting plate (3), an independent air cavity (28) is provided inside the metal heat dissipation strip (4) for allowing external air to enter to achieve heat dissipation, and the heat inside the lighting lamp housing (1) is transferred to the independent air cavity (28) through the wall structure of the metal heat dissipation strip (4) and is discharged by the air; An outer heat dissipation channel (29) and an inner heat dissipation channel (30) are provided in the inner layer structure of the inner mounting plate (3); the outer heat dissipation channel (29) surrounds the outside of the inner heat dissipation channel (30); the outer heat dissipation channel (29) is connected to one end of the independent wind cavity (28); the inner heat dissipation channel (30) is connected to the other end of the independent wind cavity (28); a wind force concentration hole (5) connected to the outside of the lighting lamp housing (1) is provided on the inner heat dissipation channel (30); and a circulating heat dissipation component is matchedly provided on the outside of the lighting lamp housing (1); The circulating heat dissipation component comprises an air tank (21), a metal heat sink (27), and an air compression pump (22). The air compression pump (22) is provided with a fourth pipe (26), a third pipe (25), a first pipe (23), and a second pipe (24). The end of the fourth pipe (26) is communicated with the interior of an external heat dissipation channel (29), the end of the third pipe (25) is communicated with a wind force concentration hole (5), the end of the first pipe (23) and the end of the second pipe (24) are both communicated with the interior of the air tank (21), the metal heat sink (27) is fixedly mounted on the air tank (21), one end of the metal heat sink (27) is located outside the air tank (21), and the other end of the metal heat sink (27) is located inside the air tank (21), and a plurality of groups of metal heat sinks (27) are provided, and the plurality of groups of metal heat sinks (27) are distributed at equal distances.

2. A vehicle lighting device according to claim 1, characterized in that: The independent air cavity (28) is provided with a cleaning part for cleaning dust particles on the inner wall of the independent air cavity (28), and the cleaning part comprises a spring (33), a base (34) and a cleaning mechanism. The base (34) is fixedly welded on the inner wall of the independent air cavity (28), and the base (34) is provided in a plurality of groups, and the plurality of groups of bases (34) are distributed at equal distances. The spring (33) is provided in a plurality of groups, and the plurality of groups of springs (33) are respectively fixedly welded on both sides of the corresponding base (34), and the cleaning mechanism is installed between two corresponding groups of springs (33).

3. A vehicle lighting device according to claim 2, characterized in that: The cleaning mechanism comprises a cleaning plate (31) and a cleaning cotton layer (32); the cleaning cotton layer (32) is fixed on the surface of the cleaning plate (31); the cleaning plate (31) is in a rectangular frame structure; the cleaning plate (31) is attached to a circle of the inner wall of the independent air cavity (28); the cleaning cotton layer (32) is movably attached to the inner wall of the independent air cavity (28); and the spring (33) is fixedly welded to the side of the cleaning plate (31).

4. A vehicle lighting device according to claim 2, characterized in that: The cleaning mechanism comprises a limiting shell (35), a spherical body (36) and a cotton sleeve (37); the limiting shell (35) is annular in structure; the spherical body (36) is rotatably arranged inside the limiting shell (35); the cotton sleeve (37) is fixedly sleeved on the outer ring of the spherical body (36); one end of the cotton sleeve (37) is movably fitted on the inner wall of the independent air cavity (28); and the end of the spring (33) is fixedly welded to the outer ring of the limiting shell (35).

5. A vehicle lighting device according to claim 4, characterized in that: The base (9) is mounted on the internal mounting plate (3) through a fixing assembly (8); a rectangular groove is provided in the middle of the internal mounting plate (3); the fixing assembly (8) comprises a connecting plate (19), a clamping plate (20), a fixing screw (16), a cylindrical structure (17) and an outer retaining structure (18); the connecting plate (19) is fixedly welded to the side of the lamp holder (7); the clamping plate (20) is integrally arranged at one end of the connecting plate (19) away from the lamp holder (7); the clamping plate (20) is in a semi-annular structure; the cylindrical structure (17) is fixedly mounted on the upper surface of the internal mounting plate (3) through the fixing screw (16); the outer retaining structure (18) is fixedly welded to the upper surface of the internal mounting plate (3); the outer retaining structure (18) is in a semi-annular structure; an arc-shaped opening of the outer retaining structure (18) faces the side of the lamp holder (7); a semi-annular channel for the clamping plate (20) to be clamped and fixed is formed between the outer retaining structure (18) and the cylindrical structure (17).

6. A vehicle lighting device according to claim 5, characterized in that: The metal heat dissipation strip (4) comprises a plate with an L-shaped structure and a plate with a straight structure, and the plate with an L-shaped structure and the plate with a straight structure are provided in multiple groups, and the multiple groups of plates with a straight structure are equidistantly distributed between the outer side of the lamp holder (7) and the inner side of the lighting lamp housing (1), and the multiple groups of plates with a L-shaped structure are equidistantly distributed between the outer corners of the lamp holder (7) and the inner corners of the lighting lamp housing (1).

7. A vehicle lighting device according to claim 6, characterized in that: Adjacent lower protruding strips (11) form a lower heat dissipation gap (10), and adjacent metal heat dissipation strips (4) form an upper heat dissipation gap (6).

8. The vehicle lighting device according to claim 7, characterized in that: The bottom of the base (9) is provided with an electric connection bus (14).

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