An LED headlight with high-temperature protection

Abstract

The present invention relates to the technical field of LED vehicle lights, and particularly relates to an LED vehicle light with high-temperature protection. An electric lead screw is arranged at the rear side of the air guide cover. A moving plate is threadedly connected to the electric lead screw. Assembly frames with internal fans are arranged at both ends of the moving plate. Ventilation grooves II adapted to the adjacent ventilation grooves I are formed in the upper and lower sides of the assembly frames. Flow grooves for ventilation in a humid environment are further formed in the facing sides of the two assembly frames. A filter screen is arranged at the rear side of the assembly frame. Through the coordinated operation of the ventilation pipe, the air guide cover and the assembly frame, an effective circulation of the air flow inside the lamp housing is achieved, and the heat generated during the operation of the LED lamp module can be quickly dissipated. According to the environmental conditions (dry or humid), the heat dissipation mode can be automatically switched. In a humid environment, an independent flow channel is constructed between the assembly frame and the air guide cover, and the dry air inside the vehicle is used as the cooling medium to effectively prevent the formation of condensed water. This dynamically adjustable heat dissipation method is not only easy to operate but also highly efficient and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of LED vehicle lamps, and particularly relates to an LED vehicle lamp with high-temperature protection. Background Art

[0002] Due to advantages such as high efficiency, energy conservation, and long lifespan, LED vehicle lamps have gradually replaced traditional halogen headlamps and xenon headlamps. However, LED vehicle lamps still face some technical challenges in practical applications, especially in terms of heat dissipation and high-temperature protection.

[0003] Firstly, LED light-emitting diodes are very sensitive to heat. Although the waste heat generated by LED vehicle lamps is less, high temperatures can cause serious light decay of the LED lamp beads and a sharp drop in brightness, thus affecting the service life and performance of the vehicle lamps. To prevent the influence of high temperatures on the performance of the lamp beads, the prior art usually sets heat dissipation fins on the back of the lamp bead board and installs a heat dissipation fan on the back of the heat dissipation fins for heat dissipation. However, since vehicle lamps are usually installed inside the vehicle, close to the engine, when the vehicle is running, the heat generated by the engine will increase the air temperature around the vehicle lamp, resulting in high-temperature air flow discharged by the heat dissipation fan and extremely poor heat dissipation effect.

[0004] Secondly, air holes are usually left at the lamp cover of the vehicle lamp for ventilation and heat dissipation. However, under humid weather conditions, water vapor is likely to condense into water inside the lamp cover, affecting the normal use of the vehicle lamp. This not only reduces the heat dissipation efficiency of the vehicle lamp but may also cause circuit short circuits or other failures.

[0005] It can be seen that the existing heat dissipation and protection measures of LED vehicle lamps in high-temperature and humid environments are still insufficient. There is an urgent need to propose an LED vehicle lamp that can cope with humid environments and has high-temperature protection to solve the above problems and improve the service life and performance of the vehicle lamp. Summary of the Invention

[0006] In order to overcome the above-mentioned drawbacks existing in the prior art, the present invention provides an LED vehicle lamp that can cope with humid environments and has high-temperature protection.

[0007] The technical solution of the present invention is: an LED vehicle lamp with high-temperature protection, comprising:

[0008] A lamp cover, in which an LED lamp module is installed, and ventilation pipes are communicated around the rear side of the lamp cover;

[0009] A wind guide cover, arranged at the rear side of the lamp cover and communicated with the rear end of the LED lamp module. Ventilation slots I adapted to the layout of the ventilation pipes are opened on the wind guide cover, and an adapter sleeve connected to the adjacent ventilation pipe is connected to each ventilation slot I. A filter cylinder for filtering impurities is rotatably arranged at the air inlet of the wind guide cover;

[0010] An electric lead screw is provided at the rear side of the air guide cover. A moving plate is threadedly connected to the electric lead screw. Assembly frames with fans installed inside are provided at both ends of the moving plate. Ventilation slots two adapted to the adjacent ventilation slots one are provided on the upper and lower sides of the assembly frames. Flow slots for ventilation in a humid environment are also provided on the opposite sides of the two assembly frames facing each other. A filter screen is provided at the rear side of the assembly frame. Two sets of mounting plates adapted to the layout of the assembly frame are also provided on the air guide cover. The mounting plates in the same group are arranged at intervals vertically and are slidably connected to the assembly frame on the same side. When the assembly frame approaches and is embedded in the air guide cover, a channel suitable for heat dissipation in a humid environment is formed by the middle parts of the two assembly frames and the air guide cover.

[0011] Further, an installation frame is provided on one side of the air guide cover close to the air inlet. An electric gear is installed in the installation frame. A toothed ring meshing with the driving gear of the electric gear is provided at the end of the filter cartridge to drive the filter cartridge to rotate and operate.

[0012] Further, an installation bracket is provided between the inner walls on both sides of the air inlet of the air guide cover. A guide plate extending downward is provided on the installation bracket. The guide plate is located inside the filter cartridge. A centralized frame sliding below the filter cartridge is provided at the air inlet of the air guide cover to collect impurities guided and dropped by the guide plate.

[0013] Further, a side plate is provided on each of the two sides at the rear of the lamp shade. Two partition plates are rotatably arranged between the two side plates. The two partition plates are allowed to rotate and close. A cavity for storing coolant is provided inside the partition plates.

[0014] Further, sector gears adapted to the layout of the assembly frame are provided on the inner walls of the partition plates. Toothed plates are provided on the assembly frames. Tooth racks are provided on both the upper and lower sides of the toothed plates. A set of vertically spaced full gears are rotatably arranged on both side plates. The full gears mesh with the adjacent sector gears and the toothed plates on the same side to drive the partition plates to open and close.

[0015] Further, an upper drainage plate and a lower drainage plate are respectively provided on the upper and lower inner walls of the lamp shade. The lower drainage plate and the upper drainage plate are both inclined backward to guide the flow and discharge of the condensed water inside the lamp shade.

[0016] Further, a collection frame is connected to the bottom of the lamp shade to collect the condensed water drained and gathered. A drainage pipe is connected to the collection frame.

[0017] Further, a blowing frame with inclined air vents arranged in a row is provided on the upper inner wall of the lamp shade. A connecting pipe is connected between the blowing frame and one of the ventilation pipes.

[0018] The beneficial effects are as follows: 1. Through the coordinated operation of the ventilation pipe, air guide cover, and assembly frame, the present invention realizes the effective circulation of the air flow inside the lamp shade, can quickly dissipate the heat generated during the operation of the LED lamp module, and automatically switches the heat dissipation mode according to environmental conditions (dry or humid): in a dry environment, the above components are used to dissipate heat with the help of external natural air flow; while in a humid environment, an independent flow channel is constructed through the assembly frame and the air guide cover, and the dry air inside the vehicle is used as the cooling medium to effectively prevent the formation of condensed water. This dynamically adjustable heat dissipation method is not only easy to operate but also highly efficient and reliable.

[0019] 2. By setting the openable and closable partition plate, the present invention forms a physical barrier to effectively isolate the influence of the high temperature inside the vehicle on the LED lamp module. At the same time, the cooling liquid is stored in the inner cavity of the partition plate to further block the heat transfer from heat sources such as the engine inside the vehicle, significantly reducing the risk of light decay of the lamp beads caused by high temperature.

[0020] 3. By designing the upper drainage plate and the lower drainage plate, and combining the collection box and the drainage pipe, the present invention can timely guide and drain the condensed water, avoid the short circuit or other failures caused by the retention of moisture, and thus ensure the safety and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 is a three-dimensional structural sectional view of the lamp shade, LED lamp module, and ventilation pipe of the present invention.

[0023] Figure 3 is a three-dimensional structural schematic diagram of the air guide cover, connection sleeve, electric screw rod, and other components of the present invention.

[0024] Figure 4 is a three-dimensional structural sectional view of the lamp shade, air guide cover, and assembly frame of the present invention after being disassembled.

[0025] Figure 5 is a three-dimensional structural schematic diagram of the mounting frame, mounting bracket, filter cartridge, and other components of the present invention.

[0026] Figure 6 is a three-dimensional structural sectional view of the mounting bracket, guide plate, gear ring, and other components of the present invention after being disassembled.

[0027] Figure 7 is a three-dimensional structural sectional view of the assembly frame, filter screen, fan, and other components of the present invention.

[0028] Figure 8 is a three-dimensional structural schematic diagram of the side plate, partition plate, sector gear, and other components of the present invention.

[0029] Figure 9This is a three-dimensional structural sectional view of the assembly frame, partition board, sector gear, full gear, and toothed plate of the present invention.

[0030] Figure 10 This is a three-dimensional structural schematic diagram of components such as the lower drainage plate, drainage pipe, and blowing frame of the present invention.

[0031] Figure 11 This is a planar structural sectional view of components such as the lower drainage plate, upper drainage plate, and blowing frame of the present invention.

[0032] Figure 12 This is a three-dimensional structural schematic diagram of the blowing frame, connecting pipe, and ventilation pipe of the present invention.

[0033] Figure 13 This is a schematic diagram of the usage state of each component of the present invention.

[0034] Names and serial numbers of components in the figure: 1. Lamp cover, 11. LED lamp module, 12. Ventilation pipe, 2. Air guide cover, 21. Adapter sleeve, 211. First ventilation groove, 22. Installation frame, 221. Electric gear, 23. Installation bracket, 231. Guide plate, 24. Filter cartridge, 241. Tooth ring, 25. Centralized frame, 3. Electric lead screw, 31. Installation plate, 32. Moving plate, 33. Assembly frame, 331. Second ventilation groove, 332. Flow groove, 34. Filter screen, 35. Fan, 4. Side plate, 41. Partition board, 42. Sector gear, 43. Full gear, 44. Toothed plate, 5. Lower drainage plate, 51. Upper drainage plate, 52. Collection box, 53. Drainage pipe, 6. Blowing frame, 61. Connecting pipe. Detailed implementation manners

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation to the present invention.

[0036] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings. It should be noted that the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Embodiment: An LED vehicle lamp with high-temperature protection, as Figures 1-7 and Figure 13 shown, includes:

[0038] The lamp housing 1, as the main housing of the entire vehicle lamp, is used to install and protect the internal components. An LED lamp module 11 is installed inside the lamp housing 1, which is the core light-emitting component of the vehicle lamp. A ventilation pipe 12 is connected to the periphery of the rear side of the lamp housing 1, which is used to introduce external air flow to achieve heat dissipation;

[0039] The air guide cover 2 is arranged at the rear side of the lamp housing 1 and communicates with the rear end of the LED lamp module 11. The inside of the air guide cover 2 is a hollow structure and air inlets are provided at both the left and right ends, which plays a role in guiding the air flow. Ventilation slots I 211 adapted to the layout of the ventilation pipes 12 are provided on the air guide cover 2. Connecting sleeves 21 connected to the adjacent ventilation pipes 12 are connected to each of the ventilation slots I 211. A filter cylinder 24 for filtering impurities is rotatably arranged at the air inlet of the air guide cover 2. As can be seen from the above, through the combined setting of the air guide cover 2 and the lamp housing 1, with the air guide cover 2 as the flow channel, the external air flow is guided to enter by using the air inlets, so that the external air flow is used as the cooling medium. With the flow of the air flow, it sequentially passes through the air guide cover 2, the ventilation slots I 211, the connecting sleeves 21, the lamp housing 1 and the LED lamp module 11, comprehensively covers each component and takes away the heat, achieving an efficient heat dissipation effect, providing necessary high-temperature protection for the vehicle lamp, and also ensuring its use safety and performance stability;

[0040] The electric lead screw 3 is fixedly arranged at the middle position of the rear part of the air guide cover 2. A moving plate 32 is threadedly connected to the electric lead screw 3. The connected moving plate 32 is driven by the electric lead screw 3 to perform a linear movement in the front-rear direction. Assembly frames 33 with fans 35 installed inside are arranged at both the left and right ends of the moving plate 32. Ventilation slots II 331 adapted to the adjacent ventilation slots I 211 are provided on the upper and lower sides of the assembly frames 33 for subsequent alignment operations. Flow slots 332 for ventilation in a humid environment are also provided on the opposite sides of the two assembly frames 33. The flow slots 332 are in a rectangular groove structure. A filter screen 34 is arranged at the rear side of the assembly frame 33, which is used to block impurities and dust in the flowing air flow. Two groups of mounting plates 31 adapted to the layout of the assembly frames 33 are also arranged on the air guide cover 2. The number of each group of mounting plates 31 is two. The two mounting plates 31 in the same group are arranged at an upper-lower interval and form a sliding connection with the assembly frame 33 on the same side. See Figure 4 , sliding grooves extending in the front-rear direction are provided on the mounting plates 31. Convex ends are provided on both the upper and lower sides of the assembly frame 33 on the same side, and the convex ends are slidably embedded in the sliding grooves of the adjacent mounting plates 31 on the same side, thus forming the sliding connection between the mounting plates 31 and the assembly frame 33. Coupled with the driving effect of the electric lead screw 3, the assembly frame 33 and the components thereon can move in coordination with the moving plate 32 and move in the front-rear direction synchronously, that is, approach or move away from the air guide cover 2.

[0041] Specifically, through slots adapted in size and position to the assembly frame 33 are provided on both sides of the rear part of the air guide cover 2. When the assembly frame 33 approaches the air guide cover 2, it gradually passes through the corresponding through slots and is embedded inside the air guide cover 2, aligning and connecting the second ventilation slot 331 with the first ventilation slot 211. Since the back sides of both sides of the assembly frame 33 are in a closed state, the air inlets on both sides of the air guide cover 2 can be effectively blocked, thus cutting off the direct connection between the interior and the outside. At the same time, under the guidance of the flow groove 332, an independent air flow channel is formed in the middle section area between the assembly frame 33 and the air guide cover 2. In this structure, the two side fans 35 can use the dry air inside the vehicle as a cooling medium through the pumping and exhausting action to achieve an efficient heat dissipation effect, and the cooling air can flow along the following paths:

[0042] 1. Pass through the assembly frame 33 and the second ventilation slot 331, enter the lamp cover 1 and the LED lamp module 11, and finally be discharged from the other side assembly frame 33;

[0043] 2. Or flow from the assembly frame 33 and the flow groove 332 to the air guide cover 2 to cover the rear end of the LED lamp module 11, and finally be discharged from the other side assembly frame 33.

[0044] It can be seen that this structural design is particularly suitable for use in humid weather, dynamically adjusting the heat dissipation function according to the environmental conditions, thus significantly reducing the condensation effect caused by the temperature difference, effectively preventing the generation of condensed water inside the lamp cover 1, not only maintaining a good heat dissipation effect, but also minimizing the potential damage to the vehicle lamp to the greatest extent, enabling the vehicle lamp to flexibly cope with the heat dissipation operation in different environments.

[0045] As Figures 4-6 shown, an installation frame 22 is provided on the side of the air guide cover 2 close to the air inlet. An electric gear 221 is installed inside the installation frame 22, and a toothed ring 241 meshing with the driving gear of the electric gear 221 is provided at the end of the filter cartridge 24 to drive the filter cartridge 24 to rotate.

[0046] As Figure 5 and Figure 6 shown, an installation bracket 23 is provided between the inner walls on the left and right sides of the air inlet of the air guide cover 2. A guide plate 231 extending downward is provided on the installation bracket 23. The guide plate 231 is located inside the filter cartridge 24, and a centralized frame 25 located below the filter cartridge 24 slides at the air inlet of the air guide cover 2 to collect the impurities guided and dropped by the guide plate 231.

[0047] Specifically, see in detail Figure 6As shown, as the filter cartridge 24 rotates, its outer wall will closely fit the inner wall of the air guide cover 2. When the air flow enters the air guide cover 2, due to the blocking effect of the guide plate 231, the air flow will be guided to flow downward along the direction of the guide plate 231. Under the influence of the pressure difference, the downward flowing air flow becomes stronger, effectively impacting the filter cartridge 24 and causing the impurities and dust attached to it to fall off. At the same time, the continuous rotation of the filter cartridge 24 causes scraping effects between its surface and the upper and lower inner walls of the air guide cover 2, further helping the impurities to fall off. The fallen impurities then fall into the centralized frame 25 below, realizing the functions of scraping and collection. This design can effectively improve the cleaning efficiency of the filter cartridge 24 and ensure the orderly collection of impurities.

[0048] As Figure 1 , Figure 8 , Figure 9 and Figure 13 As shown, on the left and right sides of the rear part of the lamp shade 1, there is a side plate 4 respectively. Between the two side plates 4, two partition plates 41 are rotatably arranged. The two partition plates 41 are allowed to rotate and close, and the partition plates 41 have cavities inside for storing coolant. According to different heat dissipation environment requirements, the partition plates 41 can be controlled to open and close. When dissipating heat in a dry environment, the partition plates 41 are closed. At this time, the coolant stored in the cavities inside can effectively ensure the heat dissipation effect of the vehicle lamp, and at the same time block the circulation between the heat flow inside the vehicle and the vehicle lamp, avoiding heat interference. When dissipating heat in a humid environment, the partition plates 41 need to be opened to ensure that good circulation can be formed between the dry air inside the vehicle and the vehicle lamp, so as to better utilize the dry air to complete the heat dissipation requirements of the vehicle lamp, reduce the generation of condensed water and optimize the heat dissipation performance.

[0049] As Figure 8 , Figure 9 and Figure 13 As shown, on the inner walls of the partition plates 41, sector gears 42 adapted to the layout of the assembly frame 33 are provided. Specifically, in this embodiment, the sector gears 42 are quarter gears. On the assembly frame 33, toothed plates 44 are provided. Both the upper and lower sides of the toothed plates 44 have teeth. On both side plates 4, a set of upper and lower spaced full gears 43 are rotatably arranged. The full gears 43 mesh with the adjacent sector gears 42 and toothed plates 44 on the same side to drive the partition plates 41 to open and close.

[0050] As Figure 10 and Figure 11 As shown, the upper and lower inner walls of the lamp shade 1 are respectively provided with an upper drainage plate 51 and a lower drainage plate 5. The lower drainage plate 5 and the upper drainage plate 51 are both inclined backward. This structure can effectively guide the condensed water attached to the upper and lower walls inside the lamp shade 1, which can flow along the upper drainage plate 51 and the lower drainage plate 5 respectively and finally be discharged smoothly, thus avoiding the accumulation of condensed water inside the lamp shade 1 and ensuring the normal operation and service life of the vehicle lamp.

[0051] As Figure 10 and Figure 11 shown, a collection box 52 is connected to the bottom of the lampshade 1 for collecting and accommodating the condensed water flowing down from the inner wall of the lampshade. A drainage pipe 53 is connected to the collection box 52, and the collected condensed water can be further guided to the outside through the drainage pipe 53 to ensure the orderly discharge of the condensed water and effectively prevent moisture from accumulating inside the lampshade 1.

[0052] As Figures 10-12 shown, a blowing frame 6 with inclined air vents arranged in a row is provided on the upper inner wall of the lampshade 1. The inclined air vents can be used to guide the direction of the air flow. A connecting pipe 61 is connected between the blowing frame 6 and one of the ventilation pipes 12, which can optimize the air circulation inside the lampshade 1 and effectively improve the heat dissipation efficiency.

[0053] When used in a dry environment, it is necessary to ensure good air circulation between the air guide cover 2 and the outside air, and close the two partition plates 41. At this time, the partition plates 41 are connected to the internal cooling system of the vehicle. The cavity of the partition plates 41 is filled with coolant, which forms a barrier by itself to protect the lampshade 1 and its components on it, and prevent the heat flow inside the vehicle from affecting the operation and heat dissipation performance of the LED lamp module 11. At the same time, as the vehicle travels, the outside air flow enters through the air inlet of the air guide cover 2. During this process, the electric gear 221 starts, drives the driving gear connected to it to mesh with the toothed ring 241, and drives the filter cartridge 24 to rotate. When the air flow passes through the rotating filter cartridge 24, impurities and dust are blocked and retained by the filter holes of the filter cartridge 24. As the filter cartridge 24 rotates and is guided by the guide plate 231, the impurities attached to the filter cartridge 24 fall off by the blowing of the air flow and the scraping of the inner wall of the air guide cover 2, and finally fall into the central box 25 below. Subsequently, the flowing air flow passes through the LED lamp module 11 as a cooling medium and enters the inside of the lampshade 1 through the ventilation pipe 12, taking away the heat generated during the operation of the LED lamp module 11, thereby achieving effective heat dissipation.

[0054] When used in a humid environment, to prevent condensation, the electric lead screw 3 needs to be activated to push the moving plate 32 to move closer to the air guide cover 2. The components at both ends of the moving plate 32 move synchronously, and the assembly frame 33 slides along the mounting plate 31 until it is completely embedded in the air guide cover 2, aligning and connecting the second ventilation groove 331 with the first ventilation groove 211, so that the air inlets on both sides of the air guide cover 2 can be closed through the assembly frame 33. At the same time, the movement of the assembly frame 33 drives the connected toothed plate 44 to move synchronously, making it engage with the full gear 43 and driving the full gear 43 to rotate. The full gear 43 further engages with the sector gear 42 to drive the partition plate 41 to rotate and open, enabling the communication between the lamp cover 1 and the interior of the vehicle. At this time, the two fans 35 are activated. One fan 35 extracts the dry air inside the vehicle as the heat dissipation medium. The air flow passes through the filter screen 34 of the assembly frame 33 and enters the air guide cover 2 through the flow groove 332, and then is discharged by the other fan 35. Heat dissipation is completed by means of the dry air inside the vehicle, avoiding the condensation problem caused by the entry of humid cold air. In addition, part of the air flow enters the lamp cover 1 through the second ventilation groove 331, and part of it is introduced into the blowing frame 6 through the connecting pipe 61 and blows onto the LED lamp module 11 through the inclined air inlets over a large area to ensure stable and efficient heat dissipation during the process.

[0055] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. An LED car lamp with high temperature protection, comprising: A lampshade, wherein an LED lamp module is installed in the lampshade, and a ventilation pipe is connected around the rear side of the lampshade; The invention is characterized in that it also includes: an air guide cover, which is arranged at the rear side of the lampshade and communicated with the rear end of the LED lamp module, the air guide cover is provided with a ventilation slot one adapted to the layout of the ventilation pipe, each of the ventilation slots one is connected with a connecting sleeve connected to the adjacent ventilation pipe, and the air inlet of the air guide cover is rotatably provided with a filter cartridge for filtering impurities; An electric screw is arranged at the rear side of the air guide cover, a movable plate is threadedly connected to the electric screw, assembly frames for mounting fans inside are arranged at both ends of the movable plate, ventilation slots 2 matching the adjacent ventilation slots 1 are provided on the upper and lower sides of the assembly frame, and flow slots for ventilation in a humid environment are also provided on the opposite sides of the assembly frames on both sides, a filter is arranged at the rear side of the assembly frame, and two groups of mounting plates matching the layout of the assembly frames are also arranged on the air guide cover, the mounting plates in the same group are arranged in an upper and lower interval arrangement and are slidably connected to the assembly frames on the same side, and when the assembly frames are close to and embedded in the air guide cover, the assembly frames on both sides and the middle part of the air guide cover form a channel suitable for heat dissipation in a humid environment; A mounting frame is provided on one side of the air guide cover close to the air inlet, an electric gear is installed in the mounting frame, and a gear ring meshing with a driving gear of the electric gear is provided at the end of the filter cartridge to drive the filter cartridge to rotate; A mounting frame is provided between the inner walls on both sides of the air inlet of the air guide cover, and a guide plate extending downward is provided on the mounting frame, and the guide plate is located inside the filter cartridge, and a centralizing frame located below the filter cartridge slides at the air inlet of the air guide cover, and is used to collect impurities guided by the guide plate to fall; A side plate is disposed on each side of the rear portion of the lampshade, and two partition plates are rotatably disposed between the side plates. The two partition plates are allowed to rotate and close, and a cavity for storing coolant is provided inside the partition plates; The inner wall of the partition plate is provided with a sector gear adapted to the layout of the assembly frame, and the assembly frame is provided with a toothed plate, and the upper and lower sides of the toothed plate have gear teeth, and a group of full gears spaced up and down are rotated on the side plates on both sides, and the full gears are meshed with the adjacent sector gears and the toothed plate on the same side to drive the partition plate to open and close; The upper and lower inner walls of the lampshade are respectively provided with an upper guide plate and a lower guide plate, and the lower guide plate and the upper guide plate are both in a backward tilted state, so as to guide the condensed water inside the lampshade to flow out.

2. The LED vehicle lamp with high temperature protection according to claim 1, characterized in that: The bottom of the lampshade is connected to a collecting frame for collecting and draining the accumulated condensed water, and the collecting frame is connected to a drainage pipe.

3. The LED vehicle lamp with high temperature protection according to claim 2, characterized in that: The upper inner wall of the lampshade is provided with a blowing frame with inclined air outlets arranged therein, and a connecting pipe is provided between the blowing frame and one of the ventilation pipes.

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