Efficient heat dissipation dual-light ADB module

Abstract

The utility model provides an efficient heat dissipation dual-light ADB module which comprises an outer lens, an outer lens support, a low-beam light type baffle, a low-beam inner lens, a low-beam lamp panel, an ADB inner lens, an ADB lamp panel, a radiator and a fan, the low-beam lamp panel is installed above the radiator, the low-beam inner lens is installed on the low-beam lamp panel, and the ADB inner lens is installed on the ADB lamp panel. The low beam type baffle is arranged at one end of the radiator and located on one side of the light-emitting face of the low beam inner lens. The ADB lamp panel is installed on one side of the radiator, the ADB inner lens is installed on the ADB lamp panel, the radiator comprises a plurality of first radiating fins and a plurality of second radiating fins, the first radiating fins are perpendicularly arranged below the radiator, the second radiating fins are perpendicularly arranged above the radiator, through holes penetrating through the radiator are formed between the adjacent second radiating fins, and the first radiating fins and the second radiating fins are arranged in the through holes. The fan is installed below the radiator, airflow blown out by the fan is divided into two paths, one path moves upwards and takes away heat on the ADB lamp panel, the other path moves towards the backlight side and takes away heat on the dipped headlight panel, and efficient heat dissipation is carried out.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting module technology, and more specifically, to a high-efficiency heat dissipation dual-beam ADB module. Background Technology

[0002] With the development of automotive lighting technology, ADB headlights are becoming increasingly common. However, due to limitations in headlight design and space, dual-function modules (low beam and ADB) are being used in more and more models. Consequently, the power of a single module has increased significantly, raising the demand for heat dissipation.

[0003] Although existing heat dissipation solutions use active cooling (fans), the airflow of the fan is blocked by the heat sink, reducing the fan's heat dissipation performance; existing solutions use a reflector bowl to collect light from the LEDs in the low beam section, but the reflector bowl occupies a large space.

[0004] For example, CN221197106U uses two fans, which increases cost and energy consumption. It requires two fans in conjunction with a heatsink and lacks optimization of airflow path, resulting in uneven heat dissipation and low heat dissipation efficiency.

[0005] Therefore, there is a need to provide a new dual-beam ADB module that can improve heat dissipation efficiency and increase the module's lighting performance. Utility Model Content

[0006] In view of this, in order to solve the above problems, this utility model proposes a high-efficiency heat dissipation dual-light ADB module, which adopts a double row of fins, optimizes the airflow path through the design of through holes 921 and the air guide structure 31, and forms two heat dissipation air channels, one upward and one towards the backlight side, to achieve directional heat dissipation. Only a single fan 10 is needed to cooperate with the fin system, which reduces the number of components and costs, and improves heat dissipation efficiency while simplifying the structure.

[0007] A high-efficiency heat dissipation dual-beam ADB module includes an outer lens 1, an outer lens bracket 2, a low beam pattern baffle 4, a low beam inner lens 5, a low beam lamp panel 6, an ADB inner lens 7, an ADB lamp panel 8, a heat sink 9, and a fan 10. The low beam lamp panel 6 is mounted above the heat sink 9, and the low beam inner lens 5 is mounted on the low beam lamp panel 6. The low beam pattern baffle 4 is located at one end of the heat sink 9 and on the light-emitting surface side of the low beam inner lens 5. Light emitted from the LED particles is converged by the low beam inner lens 5, and a cutoff line characteristic is achieved through the low beam pattern baffle 4. The ADB lamp panel 8 is mounted on one side of the heat sink 9, and the ADB inner lens 7 is mounted on the ADB lamp panel 8. Light emitted from the LED particles is converged by the ADB inner lens 7 to form an ADB beam pattern. The heat sink 9 includes multiple first heat dissipation fins 91 and multiple second heat dissipation fins 92. The first heat sink 91 is vertically positioned below the heat sink 9, and the second heat sink 92 is vertically positioned above the heat sink 9. Each second heat sink 92 is aligned with its corresponding first heat sink 91 below it. A through hole 921 is provided between adjacent second heat sink 92s, penetrating the heat sink 9. The through hole 921 is aligned with the airflow direction of the fan 10. The fan 10 is installed below the heat sink 9. The airflow blown out by the fan 10 is divided into two paths. One path passes through the first heat sink 91, the through hole 921 on the heat sink 9, and the second heat sink 92, moving upward and carrying away the heat from the ADB lamp panel 8 conducted on the first heat sink 91 and the second heat sink 92. The other path is guided by the first heat sink 91 to move towards the backlight side, carrying away the heat from the low beam lamp panel 6. The fan 10 makes full use of the cooperation between the first heat sink 91, the second heat sink 92, and the fan 10 to achieve efficient heat dissipation.

[0008] Furthermore, the low beam inner lens 5 is provided with a light shield 3 to prevent light leakage and thus reduce the subjective feeling of the headlights when they are lit. A guide vane structure 31 is provided above the light shield 3. The guide vane structure 31 and the light shield 3 are integrally formed. The end of the guide vane structure 31 is connected to the outside of the light shield 3.

[0009] Furthermore, the guide vane structure 31 is a tapered structure with one side open and three sides enclosed by guide plates 311. The cross-section of the guide vane structure 31 is tapered, and the upward-moving airflow, in conjunction with the guidance of the guide vane structure 31, makes the entire flow field smoother.

[0010] Furthermore, the guide vane structure 31 is designed with three openings and only one side of the guide plate 311, forming an unobstructed airflow channel with high heat dissipation efficiency.

[0011] Furthermore, the taper angle of the guide vane structure 31 is 10°-25°.

[0012] Furthermore, the spacing between adjacent first heat dissipation fins 91 or second heat dissipation fins 92 is 4-6 mm.

[0013] Furthermore, the air outlet direction of the fan 10 is perpendicular to or at an angle of 0°-90° to the mounting plane of the ADB lamp panel 8.

[0014] Furthermore, the near-beam inner lens 5 has a condenser structure, and its longitudinal projection area is less than 50% of that of a traditional reflector bowl, thus reducing space occupation.

[0015] Furthermore, the radiator 9 is made of aluminum alloy and is integrally formed by die casting.

[0016] Furthermore, the LED chips of the ADB lamp board 8 and the low beam lamp board 6 are flip-chip structures with a thermal resistance ≤1.2℃ / W, and are in direct contact with the heat sink 9 through high-performance thermal conductive gel or thermal conductive adhesive.

[0017] Furthermore, the module also includes a temperature feedback module, integrated on the ADB lamp board 8 and the low beam lamp board 6, which monitors the temperature in real time and controls the speed of the fan 10 through a PID algorithm.

[0018] The beneficial effects of this utility model are as follows: This utility model proposes a high-efficiency heat dissipation dual-beam ADB module, including an outer lens 1, an outer lens bracket 2, a low beam pattern baffle 4, a low beam inner lens 5, a low beam lamp panel 6, an ADB inner lens 7, an ADB lamp panel 8, a heat sink 9, and a fan 10. The low beam lamp panel 6 is installed above the heat sink 9, and the low beam inner lens 5 is installed on the low beam lamp panel 6. The low beam pattern baffle 4 is located at one end of the heat sink 9 and on the light-emitting surface side of the low beam inner lens 5. The light emitted by the LED particles is converged by the low beam inner lens 5, and the cutoff line characteristic is achieved through the low beam pattern baffle 4. The ADB lamp panel 8 is installed on one side of the heat sink 9, and the ADB inner lens 7 is installed on the ADB lamp panel 8. The light emitted by the LED particles is converged by the ADB inner lens 7 to form an ADB beam pattern. The heat sink 9 includes multiple first heat dissipation fins 91 and multiple second heat dissipation fins 92. The first heat dissipation fin 91 is vertically disposed below the heat sink 9, and the second heat dissipation fin 92 is vertically disposed above the heat sink 9. Each second heat dissipation fin 92 is aligned with the corresponding first heat dissipation fin 91 below it. A through hole 921 is provided between adjacent second heat dissipation fins 92, penetrating the heat sink 9. The through hole 921 is aligned with the air outlet direction of the fan 10. The fan 10 is installed below the heat sink 9. The airflow blown out by the fan 10 is divided into two paths. One path passes through the first heat dissipation fin 91, the through hole 921 on the heat sink 9, and the second heat dissipation fin 92, moving upward and carrying away the heat from the ADB lamp panel 8 conducted on the first heat dissipation fin 91 and the second heat dissipation fin 92. The other path is guided by the first heat dissipation fin 91 to move towards the backlight side, carrying away the heat from the low beam lamp panel 6. The first heat dissipation fin 91, the second heat dissipation fin 92 and the fan 10 are fully utilized to achieve efficient heat dissipation. Attached Figure Description

[0019] Figure 1 This is an exploded view of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0020] Figure 2 This is an overall structural diagram of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0021] Figure 3 This is a schematic diagram of the low beam path of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0022] Figure 4 This is a schematic diagram of the ADB light path of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0023] Figure 5 This is a schematic diagram of the heat dissipation path of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0024] Figure 6This is a cross-sectional view of the second heat dissipation fin of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0025] Figure 7 This invention relates to a light shield structure for a high-efficiency heat dissipation dual-beam ADB module.

[0026] Figure 8 This invention relates to a light shield structure for a high-efficiency heat dissipation dual-beam ADB module.

[0027] Figure 9 This is a top view of the high-efficiency heat dissipation dual-beam ADB module of this utility model.

[0028] Explanation of main component symbols

[0029] 1. Outer lens, 2. Outer lens bracket, 3. Light shield, 31. Guide plate structure, 311. Low beam beam baffle, 4. Low beam inner lens, 5. Low beam lamp plate, 6. ADB inner lens, 7. ADB lamp plate, 8. Heat sink, 9. First heat sink fin, 91. Second heat sink fin, 92. Through hole, 921. Fan, 10.

[0030] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation Example 1:

[0031] A high-efficiency heat dissipation dual-beam ADB module includes an outer lens 1, an outer lens bracket 2, a low beam pattern baffle 4, a low beam inner lens 5, a low beam lamp panel 6, an ADB inner lens 7, an ADB lamp panel 8, a heat sink 9, and a fan 10. The low beam lamp panel 6 is mounted above the heat sink 9, and the low beam inner lens 5 is mounted on the low beam lamp panel 6. The low beam pattern baffle 4 is located at one end of the heat sink 9 and on the light-emitting surface side of the low beam inner lens 5. Light emitted from the LED particles is converged by the low beam inner lens 5, and a cutoff line characteristic is achieved through the low beam pattern baffle 4. The ADB lamp panel 8 is mounted on one side of the heat sink 9, and the ADB inner lens 7 is mounted on the ADB lamp panel 8. Light emitted from the LED particles is converged by the ADB inner lens 7 to form an ADB beam pattern. The heat sink 9 includes multiple first heat dissipation fins 91 and multiple second heat dissipation fins 92. The first heat sink 91 is vertically positioned below the heat sink 9, and the second heat sink 92 is vertically positioned above the heat sink 9. Each second heat sink 92 is aligned with its corresponding first heat sink 91 below it. A through hole 921 is provided between adjacent second heat sink 92s, penetrating the heat sink 9. The through hole 921 is aligned with the airflow direction of the fan 10. The fan 10 is installed below the heat sink 9. The airflow blown out by the fan 10 is divided into two paths. One path passes through the first heat sink 91, the through hole 921 on the heat sink 9, and the second heat sink 92, moving upward and carrying away the heat from the ADB lamp panel 8 conducted on the first heat sink 91 and the second heat sink 92. The other path is guided by the first heat sink 91 to move towards the backlight side, carrying away the heat from the low beam lamp panel 6. The fan 10 makes full use of the cooperation between the first heat sink 91, the second heat sink 92, and the fan 10 to achieve efficient heat dissipation.

[0032] The low beam inner lens 5 is provided with a light shield 3 to prevent light leakage and thus reduce the subjective feeling of the headlights when they are lit. A guide vane structure 31 is provided above the light shield 3. The guide vane structure 31 and the light shield 3 are integrally formed. The end of the guide vane structure 31 is connected to the outside of the light shield 3.

[0033] The guide vane structure 31 is a tapered structure with one side open and three sides enclosed by guide plates 311. The cross-section of the guide vane structure 31 is tapered. The upward-moving airflow, in conjunction with the guidance of the guide vane structure 31, makes the entire flow field smoother.

[0034] The air guide structure 31 has an opening on three sides and an air guide plate 311 with only one side open, forming an unobstructed airflow channel with high heat dissipation efficiency.

[0035] The taper angle of the guide vane structure 31 is 10°-25°.

[0036] The spacing between adjacent first heat dissipation fins 91 or second heat dissipation fins 92 is 4-6 mm.

[0037] The air outlet direction of the fan 10 is perpendicular to or at an angle of 0°-90° to the mounting plane of the ADB light panel 8.

[0038] The near-light inner lens 5 has a condenser structure, and its longitudinal projection area is less than 50% of that of a traditional reflector bowl, thus reducing space occupation.

[0039] The radiator 9 is made of aluminum alloy and is integrally formed by die casting.

[0040] The LED chips of the ADB lamp board 8 and the low beam lamp board 6 are flip-chip structures with a thermal resistance ≤1.2℃ / W, and are in direct contact with the heat sink 9 through high-performance thermal conductive gel or thermal conductive adhesive.

[0041] The module also includes a temperature feedback module, which is integrated on the ADB lamp board 8 and the low beam lamp board 6 to monitor the temperature in real time and control the speed of the fan 10 through a PID algorithm.

[0042] The beneficial effects of this utility model are as follows: This utility model proposes a high-efficiency heat dissipation dual-beam ADB module, including an outer lens 1, an outer lens bracket 2, a low beam pattern baffle 4, a low beam inner lens 5, a low beam lamp panel 6, an ADB inner lens 7, an ADB lamp panel 8, a heat sink 9, and a fan 10. The low beam lamp panel 6 is installed above the heat sink 9, and the low beam inner lens 5 is installed on the low beam lamp panel 6. The low beam pattern baffle 4 is located at one end of the heat sink 9 and on the light-emitting surface side of the low beam inner lens 5. The light emitted by the LED particles is converged by the low beam inner lens 5, and the cutoff line characteristic is achieved through the low beam pattern baffle 4. The ADB lamp panel 8 is installed on one side of the heat sink 9, and the ADB inner lens 7 is installed on the ADB lamp panel 8. The light emitted by the LED particles is converged by the ADB inner lens 7 to form an ADB beam pattern. The heat sink 9 includes multiple first heat dissipation fins 91 and multiple second heat dissipation fins 92. The first heat dissipation fin 91 is vertically disposed below the heat sink 9, and the second heat dissipation fin 92 is vertically disposed above the heat sink 9. Each second heat dissipation fin 92 is aligned with the corresponding first heat dissipation fin 91 below it. A through hole 921 is provided between adjacent second heat dissipation fins 92, penetrating the heat sink 9. The through hole 921 is aligned with the air outlet direction of the fan 10. The fan 10 is installed below the heat sink 9. The airflow blown out by the fan 10 is divided into two paths. One path passes through the first heat dissipation fin 91, the through hole 921 on the heat sink 9, and the second heat dissipation fin 92, moving upward and carrying away the heat from the ADB lamp panel 8 conducted on the first heat dissipation fin 91 and the second heat dissipation fin 92. The other path is guided by the first heat dissipation fin 91 to move towards the backlight side, carrying away the heat from the low beam lamp panel 6. The first heat dissipation fin 91, the second heat dissipation fin 92 and the fan 10 are fully utilized to achieve efficient heat dissipation.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-efficiency heat dissipation dual-beam ADB module, comprising an outer lens (1), an outer lens bracket (2), a low beam pattern baffle (4), a low beam inner lens (5), a low beam lamp plate (6), an ADB inner lens (7), an ADB lamp plate (8), a heat sink (9), and a fan (10), wherein the low beam lamp plate (6) is mounted above the heat sink (9), the low beam inner lens (5) is mounted on the low beam lamp plate (6), the low beam pattern baffle (4) is located at one end of the heat sink (9) and on the light-emitting side of the low beam inner lens (5), the light emitted by the LED particles is converged by the low beam inner lens (5), and the cutoff line characteristic is achieved by the low beam pattern baffle (4); the ADB lamp plate (8) is mounted on one side of the heat sink (9), the ADB inner lens (7) is mounted on the ADB lamp plate (8), the light emitted by the LED particles is converged by the ADB inner lens (7) to form an ADB pattern, characterized in that: The radiator (9) includes multiple first heat dissipation fins (91) and multiple second heat dissipation fins (92). The first heat dissipation fins (91) are vertically disposed below the radiator (9), and the second heat dissipation fins (92) are vertically disposed above the radiator (9). Each second heat dissipation fin (92) is aligned with the corresponding first heat dissipation fin (91) below it. A through hole (921) penetrating the radiator (9) is provided between adjacent second heat dissipation fins (92). The through hole (921) is aligned with the air outlet direction of the fan (10). The fan (10) is mounted on the radiator. Below the heat sink (9), the airflow blown out by the fan (10) splits into two paths. One path passes through the first heat sink fin (91), the through hole (921) on the heat sink (9), and the second heat sink fin (92) and moves upward, carrying away the heat from the ADB lamp board (8) conducted on the first heat sink fin (91) and the second heat sink fin (92). The other path is guided by the first heat sink fin (91) to move towards the backlight side, carrying away the heat from the low beam lamp board (6). The efficient heat dissipation is achieved by making full use of the cooperation between the first heat sink fin (91), the second heat sink fin (92) and the fan (10).

2. The high-efficiency heat dissipation dual-beam ADB module as described in claim 1, characterized in that: The low beam inner lens (5) is provided with a light shield (3) to prevent light leakage and thus reduce the subjective feeling of the headlights. A guide plate structure (31) is provided above the light shield (3). The guide plate structure (31) and the light shield (3) are integrally formed. The end of the guide plate structure (31) is connected to the outside of the light shield (3).

3. The high-efficiency heat dissipation dual-beam ADB module as described in claim 2, characterized in that: The guide vane structure (31) is a tapered structure with one side open and three sides enclosed by guide plates (311). The cross section of the guide vane structure (31) is tapered. The upward airflow, in conjunction with the guidance of the guide vane structure (31), makes the entire flow field smoother.

4. The high-efficiency heat dissipation dual-beam ADB module as described in claim 2, characterized in that: The guide plate structure (31) has three openings and only one side of the guide plate (311), forming an unobstructed airflow channel with high heat dissipation efficiency.

5. The high-efficiency heat dissipation dual-beam ADB module as described in claim 2, characterized in that: The taper angle of the guide vane structure (31) is 10°-25°.

6. The high-efficiency heat dissipation dual-beam ADB module as described in claim 1, characterized in that: The spacing between adjacent first heat dissipation fins (91) or second heat dissipation fins (92) is 4-6 mm.

7. The high-efficiency heat dissipation dual-beam ADB module as described in claim 1, characterized in that: The air outlet direction of the fan (10) is perpendicular to or at an angle of 0°-90° to the mounting plane of the ADB lamp panel (8).

8. The high-efficiency heat dissipation dual-beam ADB module as described in claim 1, characterized in that: The near-light inner lens (5) is a condenser structure, and its longitudinal projection area is less than 50% of that of a traditional reflector bowl, thus reducing space occupation.

9. The high-efficiency heat dissipation dual-beam ADB module as described in claim 1, characterized in that: The radiator (9) is made of aluminum alloy and is integrally formed by die casting.

Images