Car lamp module with good heat dissipation performance

Abstract

The utility model relates to the technical field of automobile lamps, and discloses an automobile lamp module with good heat dissipation performance. Comprising a lower shell with an air inlet formed in the bottom, an upper shell covering the lower shell, a cooling fan arranged at the air inlet of the lower shell, a base erected on the lower shell and located above the cooling fan, a dipped headlight module, a high beam module, a light guide, a reflecting cover and lenses arranged on the upper shell and the lower shell, the base is provided with a first ventilation opening which is through up and down, and the top of the upper shell is provided with an exhaust outlet. According to the car lamp module, the air outlet is formed in the top of the upper shell, the characteristic that hot air naturally flows upwards is fully utilized, hot air flow can be discharged more smoothly, the heat dissipation path is more scientific and reasonable, the heat dissipation efficiency is greatly improved, hot air can be effectively prevented from being accumulated in the module through efficient heat dissipation, and the service life of the car lamp module is prolonged. Therefore, the service life of the automobile lamp is prolonged, and the frequency and cost for replacing the lamp are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile lamps and lanterns, particularly relates to a lamp module group with good heat dissipation performance. BACKGROUND

[0002] In the field of automobile lighting, the lamp module group plays a vital role, and the module integrated with the low beam and the high beam is a key component to ensure the safety of vehicle driving at night. With the continuous progress of automobile technology, the brightness requirement of the lamp is increasingly improved to meet the more complex road lighting needs. However, this also brings a serious heat dissipation problem.

[0003] The low beam and the high beam of the lamp module group on the market will generate a large amount of heat when working. Due to the light emitting principle, the process of converting electrical energy into light energy is accompanied by high energy loss, which is dissipated in the form of heat. For example, the common halogen lamp low beam and high beam bulb, the filament temperature can be as high as thousands of degrees Celsius when working. Even the new type of LED light source, the chip will accumulate a large amount of heat under high power operation.

[0004] However, the existing lamp module group has obvious defects in heat dissipation design. Most of the exhaust outlets of the module group are arranged at the bottom. Hot air has the characteristics of natural upward flow, which is based on the principle of thermal expansion and contraction. Hot air has a smaller density and will spontaneously move to a higher place. The design of the bottom exhaust outlet violates this thermal physical law, making it difficult for hot air to smoothly exhaust. Hot air accumulates inside the module group and cannot be efficiently exchanged with the outside cold air in time, which not only reduces the heat dissipation efficiency, but also accelerates the aging of the internal components of the lamp in the long-term high-temperature environment, seriously affects the service life and lighting performance of the lamp, and even causes circuit failure due to overheating, which endangers the driving safety. Therefore, it is urgent to develop a lamp module group with good heat dissipation performance to overcome the drawbacks of the prior art. UTILITY MODEL CONTENTS

[0005] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a lamp module group to improve the heat dissipation performance of the lamp module group.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The application discloses a vehicle lamp module with good heat dissipation performance, which comprises a lower shell provided with an air inlet at the bottom, an upper shell covering the lower shell, a heat dissipation fan arranged at the air inlet of the lower shell, a base arranged on the lower shell and above the heat dissipation fan, a low beam lamp module, a high beam lamp module, a light guide and a reflector arranged on the base, and a lens arranged on the upper shell and the lower shell, wherein the base is provided with a first ventilation hole penetrating from top to bottom, the top of the upper shell is provided with an air outlet, the low beam light emitted by the low beam lamp module is refracted by the reflector and then emitted outward through the lens, the high beam light emitted by the high beam lamp module is projected to the lens through the light guide and then emitted outward, and the heat dissipation fan is used for promoting external airflow to flow to the first ventilation hole and accelerating heat dissipation of the low beam lamp module and the high beam lamp module.

[0008] As a further improvement of the above technical solution, the low beam lamp module is horizontally arranged on the base, the high beam lamp module is vertically arranged at the front end of the base, the first ventilation hole is located at the front end of the base, the reflector forms a front opening and covers the low beam lamp module, the high beam lamp module and the first ventilation hole, the low beam lamp module faces the inner reflective surface of the reflector, and the high beam lamp module faces the front.

[0009] As a further improvement of the above technical solution, the low beam lamp module comprises a low beam circuit board and a plurality of first LED patch lamp beads arranged on the low beam circuit board.

[0010] As a further improvement of the above technical solution, the first LED patch lamp beads are three in number and are distributed in a triangular manner.

[0011] As a further improvement of the above technical solution, the high beam lamp module comprises a high beam circuit board and a plurality of second LED patch lamp beads arranged on the high beam circuit board.

[0012] As a further improvement of the above technical solution, the second LED patch lamp beads are arranged in a transverse interval.

[0013] As a further improvement of the above technical solution, the rear end of the base is provided with a power supply driving module, a control module and a second ventilation hole penetrating from top to bottom, and the heat dissipation fan is used for promoting external airflow to flow to the second ventilation hole and accelerating heat dissipation of the power supply driving module and the control module.

[0014] As a further improvement of the above technical solution, the rear end of the base forms a back plate, the power supply driving module is arranged on the back surface of the back plate, the front end of the base forms an arch door matched with the reflector, and the bottom of the base is provided with a plurality of rib plates extending along the front and back and arranged in a left-right interval.

[0015] As a further improvement of the above technical solution, the rib plates set the first ventilation hole in a grating shape, and the rib plates set the second ventilation hole in a grating shape.

[0016] As a further improvement of the above technical solution, the air outlet is provided with two air outlet sub-holes.

[0017] The vehicle lamp module provided by the utility model has the advantages that the air outlet is arranged on the top of the upper shell, the characteristics of the hot air flowing upward naturally are fully utilized, the hot air current can be discharged more smoothly, the heat dissipation path is more scientific and reasonable, the heat dissipation efficiency is greatly improved, the efficient heat dissipation can effectively avoid the accumulation of hot air in the module, the time of the internal elements of the lamp in the high-temperature environment is reduced, the element aging speed is significantly slowed down, the service life of the vehicle lamp is prolonged, and the frequency and cost of replacing the lamp are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a vehicle lamp module's section view.

[0019] Figure 2 The utility model provides a vehicle lamp module's bottom structure schematic view.

[0020] Figure 3 The utility model provides a vehicle lamp module's top structure schematic view.

[0021] Figure 4 The utility model provides a vehicle lamp module's internal structure schematic view behind hiding upper shell and lens.

[0022] Figure 5 The utility model provides a vehicle lamp module's solid drawing behind hiding upper shell and lens.

[0023] Figure 6 It is the bottom structure schematic view of base.

[0024] Figure 7 It is the top structure schematic view of base.

[0025] Main element symbol explanation: 1-upper shell, 11-air outlet, 111-air outlet sub-hole, 2-lower shell, 21-air inlet, 3-heat dissipation fan, 4-base, 41-first vent, 42-second vent, 43-back plate, 44-arch, 45-rib plate, 5-low beam lamp module, 51-low beam circuit board, 52-first LED patch lamp bead, 6-high beam lamp module, 61-high beam circuit board, 62-second LED patch lamp bead, 71-light guide, 72-reflector, 8-lens, 91-power drive module, 92-control module. DETAILED DESCRIPTION

[0026] The utility model provides a car lamp module with good heat dissipation performance, in order to make the utility model's purpose, technical scheme and effect more clear, explicit, the following with the drawings and take example for further detailed explanation of the utility model. It should be understood that the specific embodiments described here are only to explain the utility model, and are not used to limit the protection scope of the utility model.

[0027] Please refer to Figures 1 to 7 The utility model provides a car lamp module with good heat dissipation performance, including the lower shell 2 of the bottom of being provided with the air inlet 21, the upper shell 1 of covering on the lower shell 2, the heat dissipation fan 3 of setting at the air inlet 21 of the lower shell 2, the pedestal 4 of erecting on the lower shell 2 and being located the heat dissipation fan 3 top, the low beam module 5 of setting on the pedestal 4, the high beam module 6, the light guide 71 and the reflector 72, and the lens 8 of setting in the upper shell 1 and the lower shell 2, the pedestal 4 is equipped with the first vent 41 of going through up and down, the top of the upper shell 1 is equipped with the air outlet 11, the low beam light ray of the low beam module 5 is refracted to the lens 8 and goes out outward through the reflector 72, the high beam light ray of the high beam module 6 is projected to the lens 8 and goes out outward through the light guide 71, the heat dissipation fan 3 is used for making external airflow flow to the first vent 41, accelerates the heat dissipation of low beam module 5 and high beam module 6.

[0028] When the car lamp module starts to work, the low beam module 5 is separately lighted or the low beam module 5 and the high beam module 6 are lighted simultaneously. Because of the energy loss in the process of converting electric energy into light energy, they will quickly produce a large amount of heat. At this time, the heat dissipation fan 3 arranged at the air inlet 21 of the lower shell 2 is started, and the fan rotation promotes the external cold air to be sucked from the air inlet 21 at the bottom of the lower shell 2. The sucked cold air flows upward under the action of the fan, first, the airflow impacts the pedestal 4, because the first vent 41 is arranged on the pedestal 4, the cold air can smoothly pass through the first vent 41, directly cooling and cooling the low beam module 5 and the high beam module 6 arranged on the pedestal 4, and taking away the heat generated by them. The low beam light ray emitted by the low beam module 5 is refracted to the lens 8 and goes out outward through the reflector 72, and the high beam light ray emitted by the high beam module 6 is projected to the lens 8 and goes out outward through the light guide 71. While this light transmission process is normally carried out, the heat dissipation fan 3 continues to operate to ensure the supply of cold air. Due to the characteristics of natural upward flow, the hot air will move upward more quickly with the help of the heat dissipation fan 3, and finally be discharged to the external environment from the air outlet 11 arranged at the top of the upper shell 1, thereby realizing efficient heat exchange circulation of hot air and external cold air, and ensuring that the heat in the car lamp module can be timely dissipated.

[0029] The vehicle lamp module provided by the utility model fully utilizes the characteristic that hot air flows upward naturally, and hot air flow can be discharged more smoothly, so that the heat dissipation path is more scientific and reasonable, and the heat dissipation efficiency is greatly improved. Efficient heat dissipation can effectively avoid the accumulation of hot air in the module, reduce the time of internal components of the lamp in a high-temperature environment, significantly slow down the aging speed of the components, thereby prolonging the service life of the vehicle lamp and reducing the frequency and cost of replacing the lamp.

[0030] See Figure 4 And Figure 5 As shown in the figure, the low beam lamp module 5 is horizontally arranged on the base 4, the high beam lamp module 6 is vertically arranged on the front end of the base 4, the first air vent 41 is located at the front end of the base 4, and the reflector 72 forms a front opening and covers the low beam lamp module 5, the high beam lamp module 6 and the first air vent 41.

[0031] More specifically, the low beam lamp module 5 is horizontally arranged on the base 4 and faces the inner reflecting surface of the reflector 72, and this layout enables the light to be incident on the reflector 72 at the optimal angle. According to the precise optical design, the inner reflecting surface of the reflector 72 efficiently refracts the light according to the vehicle lighting regulations, creating a large, uniform and non-glare lighting area in the front near of the vehicle, perfectly adapting to the low-speed driving scenes such as urban roads and communities, reducing the lighting dead angle, improving the observation clarity of the near road conditions for the driver, and ensuring the safety of night driving. At the same time, the horizontally placed low beam lamp module 5 cooperates with the lower heat dissipation fan 3 and the first air vent 41 on the base 4. The cold air can quickly take away the heat generated by the low beam lamp module 5 after passing through the first air vent 41 under the driving of the fan, avoiding the accumulation of heat near the lamp body, prolonging the service life of the low beam lamp, and ensuring its continuous and stable output of high-quality light.

[0032] The high beam lamp module 6 is vertically arranged on the front end of the base 4 and faces forward, fully utilizing its vertical advantage, and the light can be accurately projected to the far distance in front almost in parallel. In the open field but dim light environment such as long straight road sections at high speed or suburban areas, the driver can clearly capture the road condition information at a long distance in advance, such as potential obstacles, pedestrians or other vehicles, to reserve sufficient reaction time for safe driving, greatly enhancing the safety of night high-speed driving. The first air vent 41 is located adjacent to the vertical high beam lamp module 6 at the front end of the base 4, and the heat dissipation area is accurately positioned. The large amount of heat generated by the high-power operation of the high beam lamp can be taken away by the cold air that flows in the first time, maintaining the high beam lamp module 6 at a suitable working temperature, ensuring the stability of the light emitting performance, reducing the problems such as light decay caused by overheating, and improving the reliability and durability of the high beam lamp.

[0033] The structure of the reflector 72 forms an optimized light path and heat path management system. For the low beam, precise refraction of light ensures the lighting effect; for the high beam, the auxiliary light guide 71 optimizes the light projection path, enhancing the light concentration and penetration. From the perspective of heat dissipation, the reflector 72 utilizes the principle of hot air rising to gather and guide the hot air generated by the lamp to flow upward through the front opening, making it flow smoothly to the exhaust port 11 and accelerating the heat exchange rate. This not only provides a high-quality optical environment for light output but also helps the entire module to dissipate heat efficiently, achieving a perfect balance between lighting and heat dissipation and improving the overall performance of the car lamp module.

[0034] Specifically, as shown in Figure 4 , the low beam module 5 includes a low beam circuit board 51 and a plurality of first LED patch lamp beads 52 arranged on the low beam circuit board 51. By arranging multiple first LED patch lamp beads 52, the total power of the low beam can be distributed to each lamp bead, thereby reducing the power of each lamp bead. Lower power means less heat generated by the lamp bead during operation, which helps to reduce the burden on the heat dissipation system, making heat dissipation easier and reducing the risk of lamp bead damage or light decay due to overheating, thereby prolonging the service life of the lamp bead.

[0035] In this example, the first LED patch lamp beads 52 are arranged in a triangular pattern, which makes the heat distribution on the circuit board more balanced and avoids the formation of local hot spots, effectively reducing the risk of damage to the circuit board due to heat stress concentration and ensuring stable electrical performance of the low beam module.

[0036] As shown in Figure 4 , the high beam module 6 includes a high beam circuit board 61 and a plurality of second LED patch lamp beads 62 arranged on the high beam circuit board 61. Multiple second LED patch lamp beads are arranged on the high beam circuit board 61 and cooperate to emit light. Compared to a single high-power lamp bead, multiple lamp beads can achieve a wider range and more uniform light coverage. When the vehicle needs to travel at high speed and requires long-distance strong light illumination, this uniform and high-intensity light output allows the driver to clearly see the road conditions far ahead, such as detecting curves, road signs, or potential hazards in advance, greatly ensuring the safety of night driving at high speed. In this embodiment, the second LED patch lamp beads 62 are arranged horizontally, making the light distribution of the high beam more uniform in the horizontal direction. When the vehicle is driving at night with the high beam on, uniform light can avoid local strong light or dark areas, reducing glare to other road users, while providing a comfortable and stable visual experience for the driver, allowing them to accurately judge the road conditions far ahead and ensure driving safety.

[0037] In fact, as shown in Figure 1 and Figure 5As shown, the vehicle lamp module further integrates a power supply driving module 91 and a control module 92, which are located on the rear end of the base 4, together with the second ventilation port 42 that penetrates the base 4 from top to bottom. The cooling fan 3 is used to promote the external airflow to flow to the second ventilation port 42, accelerating the heat dissipation of the power supply driving module 91 and the control module 92. The power supply driving module 91 is responsible for providing stable and suitable electric energy for the low-beam lamp module 5 and the high-beam lamp module 6, and the control module 92 precisely controls the functions such as turning on / off and brightness switching of the light. Integrating them on the rear end of the base 4 saves the overall space of the module, realizing compact layout. On the other hand, being in a relatively independent position reduces the possible electromagnetic interference with the light-emitting module, ensures the accuracy of signal transmission, ensures the stable and reliable electrical performance of the vehicle lamp module, and reduces the risk of abnormal flickering or out-of-control of the light. The cooling fan 3 promotes the external airflow to flow to the second ventilation port 42 on the rear end of the base 4, creating an efficient heat dissipation channel for the power supply driving module 91 and the control module 92. The power supply driving module 91 generates a large amount of heat during work, especially when driving the light under high load. If the heat cannot be dissipated in time, the performance of the electronic components will rapidly decline or even be damaged. The chips and other precision components in the control module 92 are also sensitive to temperature, and overheating can easily cause malfunctions such as freezing and misoperation. The targeted ventilation and cooling design can effectively remove heat, keeping it within the appropriate working temperature range, greatly extending the service life of the two core electrical control modules, reducing the frequency of maintenance and replacement, and reducing the use cost.

[0038] It can be understood that the heat dissipation system of the entire vehicle lamp module realizes fine heat management division by using the first ventilation port 41 for heat dissipation of the low-beam lamp and the high-beam lamp, and using the second ventilation port 42 for heat dissipation of the power supply driving module 91 and the control module 92. The heat of each part can be orderly discharged without interference.

[0039] Further, the rear end of the base 4 forms a back plate 43, and the power supply driving module 91 is arranged on the back surface of the back plate 43. In this way, the back plate 43 serves as a larger heat dissipation surface, and heat can be quickly conducted from the power supply driving module 91 to the back plate 43, and then further diffused by the natural convection of the surrounding air or the airflow generated by the cooling fan 3, thereby strengthening the heat dissipation effect of the power supply driving module 91 and prolonging its service life.

[0040] See Figures 5 to 7As shown, the front end of the base 4 forms an archway 44 matched with the reflector 72, which is closely matched with the reflector 72, on the one hand, to provide additional support for the reflector 72, and on the other hand, to reduce the loss of light reflection at the front end of the base 4. The bottom of the base 4 is provided with a plurality of rib plates 45 extending forward and backward and spaced apart left and right. The rib plate 45 not only enhances the overall rigidity of the base 4, but also increases the contact area of the base 4 with the cold air. Heat can be quickly transferred along the rib plate 45 to the air around the bottom of the base 4, cooperating with the airflow of the cooling fan 3 to accelerate heat dissipation, especially for the heat generated by the low beam module 5 and the high beam module 6, which can play a supplementary role in heat dissipation, and improve the heat dissipation performance of the entire vehicle lamp module.

[0041] See Figure 6 and Figure 7 As shown, the rib plate 45 sets the first air vent 41 into a grid shape, which can finely guide the cold air sucked from the cooling fan 3 to flow uniformly to the heat generating parts such as lamp beads, avoiding the situation of excessive or insufficient local cold air, and achieving more uniform heat dissipation effect. Similarly, the rib plate 45 sets the second air vent 42 into a grid shape, which precisely guides the airflow to hit the power drive module 91 and the control module 92. The cold air flows through the electronic components along the predetermined path, taking away the heat while ensuring that each critical part can be fully cooled, preventing local overheating from causing component failure, improving the working reliability of the electronic control module, and ensuring the stability of the electrical performance of the vehicle lamp module.

[0042] Further, see Figure 3 As shown, the exhaust port 11 is provided with two left and right parallel exhaust ports 11, and a plurality of exhaust sub-holes 111 are formed in each exhaust port 11. When the vehicle is driven at high speed for a long time, the vehicle lamp module is operated at high load for a long time to generate a large amount of heat. The double exhaust ports 11 can quickly exhaust the hot air, and the multiple exhaust sub-holes 111 can guide the hot air flow to be uniformly dispersed and discharged, avoiding the concentrated outflow of hot air causing local turbulence and affecting the heat dissipation efficiency. Preventing heat accumulation inside the module, ensuring that the low beam module 5, the high beam module 6 and the electronic control module are always in the appropriate working temperature range, ensuring stable light output, and improving the safety of the vehicle driving at high speed at night. Even in the city traffic, the vehicle is frequently started and stopped, and the heat generated by the frequent switching of the light and dark states of the vehicle lamp can be efficiently dissipated through the two exhaust ports 11, maintaining the stability of the module performance.

[0043] It should be noted that, in order to achieve better heat dissipation effect, the base 4 is made of heat-conducting metal (such as aluminum), which has excellent heat conduction performance. When the low beam lamp module 5 and the high beam lamp module 6 work and generate heat, the heat can quickly spread to the surrounding through the base 4. For example, under high-power lighting demand, the lamp beads accumulate a large amount of heat in a short time, and the base 4 can quickly conduct the concentrated heat to all corners of the base, avoid local overheating phenomenon, make the whole base temperature relatively balanced, lay a good foundation for the subsequent heat dissipation fan cooperating with the heat dissipation opening, and guarantee the stable light emission of the lamp and improve the lighting reliability.

[0044] The strong heat conduction cooperates with the heat dissipation fan, the first ventilation opening 41 and the second ventilation opening 42 to form a close and efficient heat dissipation cooperation. On the one hand, the heat is quickly conducted to the area near the first ventilation opening 41 by the base 4, and when the cold air passes through the first ventilation opening 41 under the action of the fan, it can more efficiently exchange heat with the heat conducted by the base, and accelerate the heat generated by the low beam lamp and the high beam lamp; on the other hand, for the power driving module and the control module at the rear end of the base 4, the base 4 can also conduct the heat generated by them to the periphery of the second ventilation opening 42, assist in heat dissipation, and ensure that the whole vehicle lamp module operates at a suitable temperature from light emission to electrical control, prolonging the overall service life.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A vehicle lamp module with good heat dissipation performance, characterized in that, The application relates to a high-beam and low-beam light module, which comprises a lower shell with an air inlet at the bottom, an upper shell covering the lower shell, a heat dissipation fan arranged at the air inlet of the lower shell, a base arranged on the lower shell and above the heat dissipation fan, a low-beam light module, a high-beam light module, a light guide and a reflector arranged on the base, and a lens arranged on the upper shell and the lower shell, wherein the base is provided with a first ventilation hole penetrating from top to bottom, the top of the upper shell is provided with an air outlet, the low-beam light emitted by the low-beam light module is refracted by the reflector and then emitted outward through the lens, the high-beam light emitted by the high-beam light module is projected to the lens through the light guide and then emitted outward, and the heat dissipation fan is used for promoting the external airflow to flow to the first ventilation hole and accelerating the heat dissipation of the low-beam light module and the high-beam light module.

2. The vehicle lamp module with good heat dissipation performance according to claim 1, characterized in that, The low-beam light module is horizontally arranged on the base, the high-beam light module is vertically arranged on the front end of the base, the first ventilation hole is located at the front end of the base, the reflector forms a front opening and covers the low-beam light module, the high-beam light module and the first ventilation hole, the low-beam light module faces the inner reflective surface of the reflector, and the high-beam light module faces the front. 3.The vehicle lamp module with good heat dissipation performance of claim 1, wherein, The low-beam light module comprises a low-beam circuit board and a plurality of first LED patch lamp beads arranged on the low-beam circuit board.

4. The vehicle lamp module with good heat dissipation performance according to claim 3, characterized in that, The first LED patch lamp beads are three in number and are distributed in a triangular manner.

5. The vehicle lamp module with good heat dissipation performance according to claim 1, characterized in that, The high-beam light module comprises a high-beam circuit board and a plurality of second LED patch lamp beads arranged on the high-beam circuit board.

6. The vehicle lamp module with good heat dissipation performance according to claim 5, characterized in that, The second LED patch lamp beads are arranged in a transverse interval. 7.The vehicle lamp module with good heat dissipation performance of claim 1, wherein, The rear end of the base is provided with a power driving module, a control module and a second ventilation hole penetrating from top to bottom, and the heat dissipation fan is used for promoting the external airflow to flow to the second ventilation hole and accelerating the heat dissipation of the power driving module and the control module. 8.The vehicle lamp module with good heat dissipation performance of claim 7, characterized in that, The rear end of the base forms a back plate, the power driving module is arranged on the back surface of the back plate, the front end of the base forms an arch door matched with the reflector, and the bottom of the base is provided with a plurality of rib plates extending along the front and back directions and arranged in a left-right interval. 9.The vehicle lamp module with good heat dissipation performance of claim 8, characterized in that, The rib plates set the first ventilation hole in a grid shape, and the rib plates set the second ventilation hole in a grid shape.

10. The vehicle lamp module with good heat dissipation performance according to any one of claims 1-9, characterized in that, The air outlet is provided with two air outlet sub-holes arranged in an interval.

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