A heat dissipation structure of a high-low beam integrated car lamp module with an LED light source

Abstract

The application relates to the technical field of LED vehicle lamp modules, in particular to a heat dissipation structure of an LED light source high-low beam integrated vehicle lamp module, which comprises a water storage pot, a fan driving mechanism, a pressure injection mechanism, a screw rod transmission mechanism and a water inlet pipe. When the driving motor rotates, the pressure injection mechanism continuously pressurizes the water storage pot. The screw rod transmission mechanism is threadedly connected above the heat dissipation fin group and moves upward with the rotation of the screw rod transmission mechanism. The rotating scraping strip is in the fin gap of the heat dissipation fin group and is linked with the movement of the water inlet pipe. The temperature sensor triggers water cooling auxiliary heat dissipation. The fan driving mechanism synchronously drives the pressure injection mechanism to pressurize without an additional power source. The water inlet pipe moves upward and links with the rotating scraping strip, realizes water spraying cooling and ash scraping cleaning integration, automatically resets after temperature recovery, and effectively improves the heat dissipation efficiency and system reliability.

Description

Technical Field

[0001] This invention relates to the field of LED automotive lighting module technology, and in particular to a heat dissipation structure for an integrated high and low beam automotive lighting module with LED light source. Background Technology

[0002] As an important development direction of intelligent lighting technology, adaptive high beam systems can automatically adjust the beam distribution according to the road environment, improving nighttime driving safety while avoiding glare for oncoming vehicles. However, LED light sources generate a lot of heat during operation. Poor heat dissipation will lead to accelerated light decay, color temperature drift, and even device damage. Therefore, efficient and reliable heat dissipation technology is the key to ensuring the stable operation of LED headlight modules with ADB function.

[0003] Currently, existing LED automotive lighting module heat dissipation solutions mainly rely on passive cooling or single air cooling. Passive cooling uses heat conduction and natural convection through heat sink fins, while active air cooling improves heat dissipation capacity through forced convection by fans. However, these solutions still suffer from insufficient heat dissipation in high-temperature environments or under long-term operating conditions. In addition, dust easily accumulates on the surface of heat sink fins in existing technologies, especially in off-road environments where the high dust levels make it easy for dust to adhere to the LED heat sink fins, leading to abnormal heat dissipation and consequently causing abnormal operation of the LED automotive lighting module. Furthermore, the narrow gaps between the heat sink fins make manual cleaning difficult, and the heat dissipation performance continues to decline after long-term operation. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem of poor heat dissipation effect of the above-mentioned LED module heat dissipation structure, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a heat dissipation structure for an integrated LED high and low beam vehicle light module.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heat dissipation structure for an integrated high and low beam vehicle light module with LED light source, including an LED module body, and further comprising, The heat sink assembly is located on the back of the LED module body and has a wind-cooling heat dissipation channel; A water tank is installed on one side of the LED module body and has a reciprocating pressable injection mechanism inside; The fan drive mechanism is connected to the pressurization mechanism, and when the drive motor rotates, it drives the pressurization mechanism to continuously pressurize the water tank. The screw drive mechanism is connected to the temperature sensor signal and rotates when the temperature is abnormal. The water inlet pipe is located above the heat dissipation fin assembly and is threadedly engaged with the screw drive mechanism. When the screw drive mechanism rotates, it drives the water inlet pipe to move upward, so that the water inlet end of the water inlet pipe touches the water outlet of the water tank. At this time, the pressurized water in the water tank flows through the water inlet pipe and sprays from the top of the heat dissipation fin assembly to directly cool the heat dissipation fin assembly and wash away the surface dust. The rotating scraper is built into the gap between the fins of the heat dissipation fin assembly and is linked to the movement of the water inlet pipe. It rotates as the water inlet pipe moves upward, scraping away and cleaning the dust attached to the inside of the heat dissipation fin assembly.

[0008] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module with LED light source described in this invention, wherein: a temperature sensor is provided inside the heat dissipation fin group to monitor the abnormal temperature rise of the heat dissipation fin group.

[0009] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, the water tank is provided with an output pipe, the injection end of the injection mechanism is equipped with a connecting plate, the connecting plate is movably connected to a rocker arm, the fan drive assembly is equipped with a rotating wheel assembly, and one of the rotating wheels of the rotating wheel assembly is connected to the rocker arm through a pin.

[0010] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, the water tank is provided with a pressure relief valve at the top, the outlet is installed at the end of the output pipe, the outlet is located on the side directly above the inlet pipe, and an elastic sealing ring is installed inside the outlet.

[0011] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module with LED light source described in this invention, the fan drive mechanism includes a drive motor installed on one side of the heat dissipation fin assembly, a fan blade installed at the output end of the drive motor, and a contact protrusion installed on the outer wall of the fan blade. The fan blades drive the airflow into the air-cooling channel of the heat dissipation fin assembly.

[0012] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, the screw transmission mechanism includes an output motor installed above the heat dissipation fin assembly, a threaded rod installed at the output end of the output motor, a gear installed on the outer wall of the threaded rod, a bent toothed plate meshing with the gear, and one end of the bent toothed plate extending into one side of the rotating scraper.

[0013] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, the threaded rod is connected to the water inlet pipe in a driving connection. The rotation of the threaded rod causes the water inlet pipe to move up and down. The water inlet pipe moves upward and can enter the water outlet and touch the outlet.

[0014] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, wherein: a pressure plate is installed on the inner wall of the water inlet pipe, a sealing ring is installed at the outer port of the water inlet pipe, the sealing ring ensures that the water inlet pipe and the water outlet are kept sealed, and a water spray plate is connected to one end of the water inlet pipe, the water spray plate being located in the upper half of the heat dissipation fin assembly.

[0015] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, the rotating scraper contacts the inner wall of the fins, and a support sleeve is installed on one side of the end of the rotating scraper through a bearing. The support sleeve is embedded in the heat dissipation fin assembly, and a restoring spring is provided at the embedded end. A magnetic block is provided in the rotation path of the rotating scraper in the heat dissipation fin assembly, and an elastic contact plate is installed at the axis of the rotating scraper.

[0016] As a preferred embodiment of the heat dissipation structure of the integrated high and low beam vehicle light module of the present invention, a drainage channel is provided below the heat dissipation fin group to drain the sprayed cooling water and carry away the scraped and washed-off dust.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. The temperature sensor monitors the temperature of the heat sink fin assembly in real time. When an abnormal increase is detected, the water-cooled auxiliary heat dissipation mode is automatically triggered, realizing intelligent coordination between air cooling and water cooling. While providing forced convection heat dissipation, the fan drive mechanism drives the pressurization mechanism through the crank rocker mechanism to continuously pressurize the water tank. The pressure reserve of the water cooling system can be maintained without an additional power source. This design not only ensures low-energy air cooling operation under normal conditions, but also enables rapid start-up of efficient water cooling under high-temperature conditions, significantly improving the heat dissipation reliability and thermal management response speed of the LED module under complex conditions. Second, the system organically integrates heat dissipation and cleaning functions. As the water inlet pipe moves upward to press against the outlet, a screw-driven mechanism simultaneously rotates the scraper, achieving simultaneous cleaning of dust from both the inside and outside of the heatsink fins. Water spray washes away surface dust, while the scraper removes dust adhering to the gaps between the fins. The cleaned wastewater is discharged through the drainage channel, effectively solving the problems of narrow fin gaps and difficulty in manual cleaning. The system also features an automatic reset function. After the temperature returns to normal, the water inlet pipe moves downward to disengage, the elastic sealing ring automatically seals the outlet, and the rotating scraper is fixed in an unobstructed position by magnetic blocks, ensuring unobstructed airflow. This achieves integrated intelligent control of heat dissipation, cleaning, and reset.

[0018] Third, the module is easy to install. It does not change the original snap-fit ​​method between the LED module and the lamp cover. Only additional clamps are needed to fix the heat sink fins. In other words, the improvement cost of the car light module is low and its installation difficulty is small, making it easy and convenient to replace other car light modules. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall heat dissipation structure of an integrated high and low beam automotive headlight module with LED light source.

[0021] Figure 2 This is a side view of a heat dissipation structure for an integrated LED headlight module with both high and low beams.

[0022] Figure 3 This is a cross-sectional schematic diagram of the heat dissipation structure of an integrated LED headlight module for both high and low beams.

[0023] Figure 4 This is a schematic diagram of a fan drive mechanism for a heat dissipation structure of an integrated LED high and low beam vehicle light module.

[0024] Figure 5 This is a schematic diagram of a heat dissipation fin assembly for a vehicle headlight module with integrated high and low beam LED light source.

[0025] Figure 6 for Figure 3 Enlarged view of point A in the image.

[0026] Figure 7 for Figure 5 Enlarged view of point B in the image.

[0027] Reference numerals: 1. LED module body; 2. Heat sink fin assembly; 3. Water tank; 31. Pressure injection mechanism; 32. Output pipe; 33. Connecting plate; 34. Rotating wheel assembly; 35. Rocker arm; 36. Pressure relief valve; 37. Output pipe; 38. Water outlet; 381. Elastic sealing ring; 4. Fan drive mechanism; 41. Drive motor; 42. Fan blade; 421. Contact protrusion; 5. Screw drive mechanism; 51. Output motor; 52. Threaded rod; 53. Gear; 54. Bending toothed plate; 6. Water inlet pipe; 61. Contact plate; 62. Sealing ring; 63. Spray plate; 7. Rotating scraper; 71. Support sleeve; 72. Restoring spring; 73. Magnetic block; 74. Elastic contact plate; 8. Drainage channel. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0032] Reference Figures 1-7This is one embodiment of the present invention, which provides a heat dissipation structure for an integrated LED high / low beam vehicle headlight module. The module includes an LED module body 1 and a heat dissipation fin assembly 2 located on the back of the LED module body 1, which has an air-cooling heat dissipation channel. A temperature sensor is installed inside the heat dissipation fin assembly 2 to monitor abnormal temperature increases. The LED module body 1 is the core heat-generating component of the light source, and the heat dissipation fin assembly 2 is tightly attached to its back. The heat dissipation fin assembly 2 is made of high thermal conductivity aluminum alloy and has regularly arranged longitudinal fin gaps, forming an air-cooling heat dissipation channel. The temperature sensor embedded inside the heat dissipation fin assembly 2 monitors the fin surface temperature in real time. When an abnormal temperature increase is detected (such as exceeding a preset threshold of 75°C), a signal is output to the control system to trigger a water-cooled auxiliary heat dissipation mode.

[0033] Specifically, the water tank 3 is installed on one side of the LED module body 1. It has a reciprocating pressable injection mechanism 31 inside. The water tank 3 has an output pipe 32 inside. The injection end of the injection mechanism 31 is equipped with a connecting plate 33. The connecting plate 33 is movably connected to a rocker arm 35. The fan drive assembly is equipped with a rotating wheel set 34. One of the rotating wheels of the rotating wheel set 34 is connected to the rocker arm 35 through a pin. The top of the water tank 3 is equipped with a pressure relief valve 36. The end of the output pipe 32 is equipped with a water outlet 38. The water outlet 38 is located on one side directly above the water inlet pipe 6. An elastic sealing ring 381 is installed inside the water outlet 38. The water tank 3 is installed on one side of the LED module body 1. It is a sealed pressure vessel that stores cooling water inside. The top of the water tank 3 is equipped with a pressure relief valve 36. The pressure relief valve 36 adopts a spring-type structure. When the pressure inside the tank exceeds the safety threshold (such as 0.3MPa), it will automatically open to release pressure and ensure system safety. The drive motor 41 drives the rotating wheel set 34 to rotate, the rotating wheel set 34 drives the rocker arm 35 to move, and the rocker arm 35 drives the injection mechanism 31 to press back and forth. The injection mechanism 31 is an air injection valve body, and its principle is the same as that of the press-type spray bottle, so that the water tank 3 is kept under continuous pressure.

[0034] Furthermore, the fan drive mechanism 4 is connected to the injection mechanism 31. When the drive motor 41 rotates, it drives the injection mechanism 31 to continuously pressurize the water tank 3. The fan drive mechanism 4 includes a drive motor 41 installed on one side of the heat sink fin assembly 2. The output end of the drive motor 41 is equipped with a fan blade 42. The outer wall of the fan blade 42 is equipped with a contact protrusion 421. The fan blade 42 drives the airflow into the air cooling channel of the heat sink fin assembly 2. The fan blade 42 is located on the air intake side of the heat dissipation fin assembly 2. When it rotates, it drives the airflow into the air-cooling channel between the fins and then overflows from the outside of the heat dissipation fin assembly 2 to form forced convection heat dissipation. The output shaft of the drive motor 41 is also equipped with a rotating wheel assembly 34. The rotating wheel assembly 34 includes a first rotating wheel and a second rotating wheel that are fixed coaxially. The first rotating wheel rotates synchronously with the fan blade 42. The second rotating wheel is connected to the other end of the rocker arm 35 through a pin to form a crank-rocker mechanism. When the drive motor 41 rotates continuously, the rotating wheel assembly 34 drives the rocker arm 35 to swing back and forth, and then drives the pressurization mechanism 31 through the connecting plate 33 to continuously pressurize the water tank 3.

[0035] Furthermore, the screw drive mechanism 5 is connected to the temperature sensor signal and rotates when the temperature is abnormal. The screw drive mechanism 5 includes an output motor 51 installed above the heat sink fin assembly 2. A threaded rod 52 is installed at the output end of the output motor 51. A gear 53 is installed on the outer wall of the threaded rod 52. The gear 53 meshes with a bent toothed plate 54. One end of the bent toothed plate 54 extends into one side of the rotating scraper 7. The threaded rod 52 is connected to the water inlet pipe 6. The rotation of the threaded rod 52 drives the water inlet pipe 6 to move up and down. The water inlet pipe 6 can move upward and enter the water outlet 38 and touch the pressure. The bent toothed plate 54 is an L-shaped or Z-shaped metal plate with a rack section that meshes with the gear 53 and a horizontal extension section. One end of the horizontal extension section extends into the fin gap of the heat dissipation fin assembly 2 and is fixedly connected to the support sleeve 71 of the rotating scraper 7. The heat dissipation fin assembly 2 has a reserved movement gap for the bent toothed plate 54 at the corresponding position to ensure that the toothed plate can move in the horizontal direction.

[0036] Furthermore, the water inlet pipe 6 is located above the heat dissipation fin assembly 2 and is threadedly engaged with the screw drive mechanism 5. When the screw drive mechanism 5 rotates, it drives the water inlet pipe 6 to move upward, so that the water inlet end of the water inlet pipe 6 touches the water outlet 38 of the water tank 3. At this time, the pressurized water in the water tank 3 flows through the water inlet pipe 6 and sprays from the top of the heat dissipation fin assembly 2, directly cooling the heat dissipation fin assembly 2 and washing off the surface dust. The inner wall of the water inlet pipe 6 is equipped with a pressure plate 61, and the outer port of the water inlet pipe 6 is equipped with a sealing ring 62. The sealing ring 62 ensures that the water inlet pipe 6 and the water outlet 38 are kept sealed. One end of the water inlet pipe 6 is connected to a spray plate 63, which is located in the upper half of the heat dissipation fin assembly 2. The rotation of the threaded rod 52 causes the water inlet pipe 6 to move upward, and the water inlet pipe 6 moves upward and embeds into the interior of the water outlet 38. The pressure plate 61 of the water inlet pipe 6 pushes up the elastic sealing ring 381 inside the water outlet 38, so that the clean water inside the water tank 3 is sprayed out from the spray plate 63 through the output pipe 32, the water outlet 38 and the water inlet pipe 6. The spray plate 63 is semi-arc, and its clean water spray is in the upper half of the heat dissipation fin assembly 2.

[0037] Furthermore, the rotating scraper 7 is built into the gap between the fins of the heat dissipation fin assembly 2 and is linked with the movement of the water inlet pipe 6. It rotates as the water inlet pipe 6 moves upward, scraping and cleaning the dust attached to the inside of the heat dissipation fin assembly 2. The rotating scraper 7 contacts the inner wall of the fins, and a support sleeve 71 is installed on one end of the rotating scraper 7 via a bearing. The support sleeve 71 is embedded in the heat dissipation fin assembly 2, and a return spring 72 is provided at the embedded end. A magnetic block 73 is provided in the rotation path of the rotating scraper 7 in the heat dissipation fin assembly 2, and an elastic contact plate 74 is installed at the axis of the rotating scraper 7. The rotating scraper 7 is divided into a connecting end and a scraping end. The connecting end is connected to the support sleeve 71 through a bearing, while the scraping end is in contact with the fins and can be attracted by the magnetic block 73.

[0038] Furthermore, a drainage channel 8 is provided below the heat dissipation fin assembly 2 to drain the sprayed cooling water and carry away the scraped and washed-off dust.

[0039] System reset mode: When the temperature sensor detects that the temperature of heat sink fin group 2 has returned to normal (e.g., below 60°C), or after the water-cooled auxiliary heat dissipation has been running for a set time, the control system starts the reset procedure. The output motor 51 rotates in the opposite direction, driving the threaded rod 52 to reverse. The reverse rotation of the threaded rod 52 causes the water inlet pipe 6 to move downward, disengaging from the outlet 38. The pressure plate 61 releases the pressure on the elastic sealing ring 381. The elastic sealing ring 381 resets under its own elastic force, re-sealing the outlet 38 and stopping the water spray. Simultaneously, gear 53 drives the bent toothed plate 54 to move in the opposite direction, and the support sleeve 71 and the rotating scraper 7 return to their original position outward under the elastic force of the restoring spring 72. The elastic contact plate 74 then separates from the contact protrusion 421, and the rotating scraper 7 loses its rotational driving force. Due to inertia, the rotating scraper 7 will continue to rotate for a period of time. When it rotates to the corresponding position of the magnetic block 73, the magnetic force of the magnetic block 73 attracts the metal scraping area of ​​the rotating scraper 7, fixing it in place. This position is precisely designed to ensure that the rotating scraper 7 does not obstruct the airflow channel between the fins, ensuring that the subsequent air-cooling heat dissipation mode resumes normal operation.

[0040] Furthermore, when the headlight module is ready for installation, its LED module body 1 is embedded in the lamp cover, and its own sealing ring ensures that the heat dissipation end and the light-emitting end are isolated. At this time, the LED module body 1 and related electrical components are sealed in a closed environment. As for the heat dissipation fin group 2, it is exposed to the air. Its heat dissipation fin group 2 dissipates heat through active strong convection. The ring body on the outside of the heat dissipation fin group 2 is used to collect a large amount of cleaning water for directional discharge. Only some water mist will remain around its heat dissipation fin group 2. Water mist is a normal phenomenon in this environment and can be ignored. The water mist is small and located at the engine hood end. Correspondingly, some isolation covers are set up, which will not affect other electrical structures (similar to engine compartment cleaning, a small amount of water mist can be ignored, and the internal electronic components have their own waterproof structure).

[0041] Operation process: During normal use, the heat of the LED module is transferred to the heat dissipation fin assembly 2. At this time, the drive motor 41 rotates, driving the fan blades 42 to rotate. The fan blades 42 drive the airflow into the interior of the heat dissipation fin assembly 2, and the airflow then overflows from the interior of the heat dissipation fin assembly 2 to the outside, thus completing the heat dissipation of the LED module. When the drive motor 41 rotates, it drives the rotating wheel assembly 34 to rotate. The rotation of the rotating wheel assembly 34 drives the rocker arm 35 to move. The movement of the rocker arm 35 drives the injection mechanism 31 to press back and forth. The injection mechanism 31 is an air injection valve body, and its principle is the same as that of a press-type spray bottle, so that the water tank 3 is kept under continuous pressure. When the pressure is sufficient, the excess water is injected. Pressure is released through the pressure relief valve 36, which is an existing spring-type pressure relief structure. When the heat dissipation time is long and the fins are covered with a lot of dust, causing abnormal heat dissipation, the temperature sensor detects the abnormality. The output motor 51 drives the threaded rod 52 to rotate. The rotation of the threaded rod 52 drives the water inlet pipe 6 to move upward. The water inlet pipe 6 moves upward and is embedded inside the water outlet 38. The pressure plate 61 of the water inlet pipe 6 pushes up the elastic sealing ring 381 inside the water outlet 38, so that the clean water inside the water tank 3 is sprayed out from the spray plate 63 through the output pipe 32, the water outlet 38 and the water inlet pipe 6. The spray plate 63 is semi-arc, and the clean water spray is in the upper half of the heat dissipation fin assembly 2. The spray plate 63 and the water inlet pipe 3 are sprayed out from the spray plate 63. The spray plate 63 is semi-arc, and the clean water spray is in the upper half of the heat dissipation fin assembly 2. All drainage channels 8 are enclosed and fixed by a complete ring, ensuring that clean water is discharged in a directional manner without leakage. When the threaded rod 52 rotates, the rotation of the threaded rod 52 drives the gear 53 to rotate, and the rotation of the gear 53 drives the bent toothed plate 54 to move. The bent toothed plate 54 is fixedly connected to the support sleeve 71, and the heat dissipation fin assembly 2 has a movement gap for the bent toothed plate 54, allowing the support sleeve 71 to move. This, in turn, causes the rotating scraper 7 to move slightly, causing the elastic contact plate 74 to contact the contact protrusion 421. This allows the rotation of the fan blade 42 to drive the rotating scraper 7 to rotate. The rotation of the rotating scraper 7 and the spray of clean water effectively remove dust from the fins, and the clean water... While providing a cleaning effect, the clean water directly solves the high temperature problem, directly cooling the heat dissipation fin assembly 2 and ensuring the normal operation of the LED module body 1. During restoration, the threaded rod 52 flips, its water inlet pipe 6 and support ring are reset, and its elastic contact plate 74 separates from the contact protrusion 421. When the rotating scraper 7 rotates under the drive of inertia, its magnetic block 73 can capture and fix the scraping area of ​​the rotating scraper 7, ensuring that the rotating scraper 7 will not block the gap between the fins, so that the subsequent heat dissipation fin assembly 2 can work normally. This structure only requires additional water to be added to the water tank 3 to ensure the heat dissipation of the LED module, improving the performance of the LED module.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A heat dissipation structure for an integrated high and low beam vehicle light module with LED light source, comprising an LED module body (1), characterized in that: It also includes, The heat dissipation fin group (2) is located on the back of the LED module body (1) and has a wind-cooled heat dissipation channel; A water tank (3) is installed on one side of the LED module body (1) and has a reciprocating pressing injection mechanism (31) inside. The fan drive mechanism (4) is connected to the injection mechanism (31) in a transmission manner. When the fan drive mechanism (4) rotates, it drives the injection mechanism (31) to continuously pressurize the water tank (3). The screw drive mechanism (5) is connected to the temperature sensor signal and rotates when the temperature is abnormal; The water inlet pipe (6) is located above the heat dissipation fin assembly (2) and is threadedly engaged with the screw drive mechanism (5). When the screw drive mechanism (5) rotates, it drives the water inlet pipe (6) to move upward, so that the water inlet end of the water inlet pipe (6) touches the water outlet (38) of the water storage tank (3). At this time, the pressurized water in the water storage tank (3) flows through the water inlet pipe (6) and sprays from the top of the heat dissipation fin assembly (2) to directly cool the heat dissipation fin assembly (2) and wash off the surface dust. The rotating scraper (7) is built into the gap between the fins of the heat dissipation fin group (2) and is linked with the movement of the water inlet pipe (6). It rotates as the water inlet pipe (6) moves upward, and scrapes and cleans the dust attached to the inside of the heat dissipation fin group (2).

2. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 1, characterized in that: The heat dissipation fin group (2) is equipped with a temperature sensor inside, which is used to monitor the abnormal temperature rise of the heat dissipation fin group (2).

3. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 1, characterized in that: The water tank (3) is provided with an output pipe (32) inside. The injection end of the injection mechanism (31) is equipped with a connecting plate (33). The connecting plate (33) is movably connected to a rocker arm (35). The fan drive assembly is equipped with a rotating wheel assembly (34). One of the rotating wheels of the rotating wheel assembly (34) is connected to the rocker arm (35) by a pin.

4. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 3, characterized in that: The top of the water tank (3) is equipped with a pressure relief valve (36), and the end of the output pipe (32) is equipped with a water outlet (38). The water outlet (38) is located on one side directly above the water inlet pipe (6), and an elastic sealing ring (381) is installed inside the water outlet (38).

5. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 1, characterized in that: The fan drive mechanism (4) includes a drive motor (41) installed on one side of the heat sink fin assembly (2), and a fan blade (42) is installed at the output end of the drive motor (41). A contact protrusion (421) is installed on the outer wall of the fan blade (42). The fan blades (42) drive the airflow into the air-cooled heat dissipation channel of the heat dissipation fin assembly (2).

6. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 5, characterized in that: The screw drive mechanism (5) includes an output motor (51) mounted above the heat sink fin assembly (2). The output end of the output motor (51) is equipped with a threaded rod (52). A gear (53) is mounted on the outer wall of the threaded rod (52). The gear (53) meshes with a bent toothed plate (54). One end of the bent toothed plate (54) extends into one side of the rotating scraper (7).

7. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 6, characterized in that: The threaded rod (52) is connected to the water inlet pipe (6) in a transmission. The rotation of the threaded rod (52) causes the water inlet pipe (6) to move up and down. The water inlet pipe (6) can move upward and enter the water outlet (38) and touch the water.

8. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 7, characterized in that: The inner wall of the water inlet pipe (6) is equipped with a pressure plate (61), and a sealing ring (62) is installed at the outer port of the water inlet pipe (6). The sealing ring (62) ensures that the water inlet pipe (6) and the water outlet (38) are sealed. One end of the water inlet pipe (6) is connected to a water spray plate (63), which is located in the upper half of the heat dissipation fin assembly (2).

9. The heat dissipation structure of the integrated high and low beam vehicle light module with LED light source as described in claim 8, characterized in that: The rotating scraper (7) contacts the inner wall of the fins, and a support sleeve (71) is installed on one side of the end of the rotating scraper (7) through a bearing. The support sleeve (71) is embedded in the heat dissipation fin assembly (2), and a restoring spring (72) is provided at the embedded end. A magnetic block (73) is provided in the rotation path of the rotating scraper (7) of the heat dissipation fin assembly (2), and an elastic contact plate (74) is installed at the axis of the rotating scraper (7).

10. The heat dissipation structure of the integrated high and low beam vehicle lamp module with LED light source as described in claim 1, characterized in that: A drainage channel (8) is provided below the heat dissipation fin assembly (2) to drain the sprayed cooling water and carry away the dust scraped off and washed away.

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