Split ADB reflection bowl high beam system and automobile headlamp

Abstract

The invention discloses a split type ADB reflection bowl high beam system and an automobile headlamp, and relates to the field of automobile heads.The split type ADB reflection bowl high beam system comprises a heat dissipation support, the upper side and the lower side of the heat dissipation support are provided with reflection bowls with the same number, and all the reflection bowls can be independently controlled; a PCBA board is arranged between the reflection bowl and the heat dissipation support, and the reflection bowl and the heat dissipation support are detachably connected. The radiator is installed on the radiating support, and the reflecting bowl is provided with at least two positioning points used for being matched with the radiator. The ADB anti-dazzling high beam lamp is good in heat dissipation performance, and the different reflection bowls can be controlled to be turned on or turned off to achieve ADB anti-dazzling high beam; the ADB reflection bowl high beam system is matched with the lamp shell through three installation structures, and the stability of the ADB reflection bowl high beam system is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of vehicle lamps, and in particular to a split ADB reflector bowl high beam system and a vehicle headlamp. Background Art

[0002] ADB technology automatically adjusts beam distribution based on the vehicle's driving environment and traffic conditions, avoiding glare for other vehicles while providing better lighting for the driver. However, existing ADB reflector bowl high-beam systems mostly use an integrated structure. While this structure improves system integration to a certain extent, it also has some problems. For example, the integrated structure has insufficient heat dissipation performance and the reflector bowl is difficult to disassemble, making it impossible to flexibly adjust the reflector bowl angle to meet different dimming requirements.

[0003] The prior art discloses a reflective bowl pre-dimming mechanism, wherein the reflective bowl mainly consists of an independent 45° line reflective bowl, a horizontal line reflective bowl and a high beam reflective bowl, wherein the upper back parts of the 45° line reflective bowl and the high beam reflective bowl are both assembled on a reflective fixing bracket through a rotating shaft, and the lower back parts of the 45° line reflective bowl and the high beam reflective bowl are equipped with independent reflective bowl adjustment components; this scheme realizes the adjustment of the low beam reflective bowl through a single reflective bowl adjustment component, and the structural stability and dimming effect are easily affected by factors such as vibration and impact. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a split ADB reflector bowl high beam system and a car headlamp, which have good heat dissipation performance and can control the lighting of different reflector bowls to achieve ADB anti-glare high beam; the ADB reflector bowl high beam system and the lamp housing are coordinated through three mounting structures to ensure the stability of the ADB reflector bowl high beam system.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: In a first aspect, an embodiment of the present invention provides a split-type ADB reflector bowl high beam system, comprising a heat dissipation bracket, a radiator, and a reflector bowl. The heat dissipation bracket is provided with an equal number of reflector bowls on the upper and lower sides, and each reflector bowl can be controlled independently. A PCBA board is arranged between the reflective bowl and the heat dissipation bracket, and the reflective bowl and the heat dissipation bracket are detachably connected; the radiator is installed on the heat dissipation bracket, and the reflective bowl is provided with at least two positioning points for cooperating with the radiator.

[0006] As a further implementation, the reflective bowl is connected to the heat dissipation bracket via screws.

[0007] As a further implementation, the heat sink is provided with at least two positioning columns and a plurality of screw mounting points corresponding to each reflective bowl.

[0008] In a second aspect, an embodiment of the present invention provides a vehicle headlamp, comprising the split ADB reflector bowl high beam system.

[0009] As a further implementation, it further includes a lamp housing, wherein the split ADB reflector bowl high beam system is matched with the lamp housing via a first mounting structure, a second mounting structure, and a third mounting structure; The first mounting structure, the second mounting structure and the third mounting structure form a triangle distribution, wherein the first mounting structure is used for X-direction assembly of the heat dissipation bracket and the lamp housing, and the third mounting structure is used for adjusting the angle of the reflective bowl to achieve the purpose of dimming.

[0010] As a further implementation, the lamp housing has guide ribs arranged along the X direction, and the heat dissipation bracket has guide grooves that cooperate with the guide ribs; the heat dissipation bracket cooperates with the housing through a first ball joint; The guide ribs, guide grooves and first ball joint form a first installation structure.

[0011] As a further implementation, one end of the first ball joint is connected to the lamp housing, and the other end cooperates with the support, and the support is detachably connected to the heat dissipation bracket.

[0012] As a further implementation, the lamp housing is provided with a pin, the heat dissipation bracket is provided with a mounting seat, and the mounting seat is provided with a slot that cooperates with the pin; the mounting seat and the slot constitute a second mounting structure.

[0013] As a further implementation, the third mounting structure includes a dimming bracket, and a second ball joint is installed at the mating end of the dimming bracket and the heat dissipation bracket.

[0014] As a further implementation, the dimming bracket is connected to a dimming motor.

[0015] The beneficial effects of the present invention are as follows: (1) The ADB reflector bowl high beam system of the present invention is provided with the same number of reflector bowls on the upper and lower sides of the heat dissipation bracket. Each reflector bowl can be controlled individually, and the high beam is controlled by controlling the on and off of each reflector bowl. A PCBA board is provided between the reflector bowl and the heat dissipation bracket, and the reflector bowl and the heat dissipation bracket are detachably connected, which can fully utilize the heat dissipation performance of the heat dissipation bracket, quickly conduct the heat generated by the PCBA board to the radiator, and extend the service life of the ADB reflector bowl high beam system.

[0016] (2) The ADB reflector bowl high beam system of the present invention cooperates with the lamp housing through three mounting structures, and the first mounting structure, the second mounting structure and the third mounting structure form a triangular distribution, so that the split ADB reflector bowl high beam system can be stably mounted on the lamp housing; Among them, the first mounting structure is composed of a mobile mounting structure and a first ball head universal joint. The mobile mounting structure performs preliminary positioning of the heat dissipation bracket and the lamp housing. The ball head universal joint has angle adaptability. Even if there is a certain angle offset between the heat dissipation bracket and the lamp housing, the first ball head universal joint can reliably transmit torque and movement; the second mounting structure is realized by the plug-in cooperation of the pin and the mounting seat, which can realize the rapid plug-in and positioning of the heat dissipation bracket and the lamp housing; the third mounting structure adopts an electric dimming mechanism. On the basis of the effective positioning of the first mounting structure and the second mounting structure, it can realize angle adjustment under the premise of high installation accuracy to achieve the purpose of dimming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 is a schematic diagram of a split-type ADB reflector bowl high beam system according to one or more embodiments of the present invention; Figure 2 is a cross-sectional view of a split-type ADB reflector bowl high beam system according to one or more embodiments of the present invention; Figure 3 is a cross-sectional view of the installation of a heat dissipation bracket, a PCBA board, and a reflective bowl according to one or more embodiments of the present invention; Figure 4 Schematic diagram of the installation of a heat dissipation bracket, a PCBA board, and a reflective bowl according to one or more embodiments of the present invention; Figure 5 Schematic diagram of the installation of a split reflector bowl ADB system and a lamp housing according to one or more embodiments of the present invention; Figure 6 is a schematic diagram of a first installation structure according to one or more embodiments of the present invention; Figure 7 The first installation structure section according to one or more embodiments of the present invention Figure 1 ; Figure 8 The first installation structure section according to one or more embodiments of the present invention Figure 2 ; Figure 9 is a schematic diagram of a second installation structure according to one or more embodiments of the present invention; Figure 10 is a cross-sectional view of a second mounting structure according to one or more embodiments of the present invention; Figure 11 is a schematic diagram of a third installation structure according to one or more embodiments of the present invention; Figure 12is a cross-sectional view of a third mounting structure according to one or more embodiments of the present invention.

[0019] Among them, 1. reflector bowl, 2. heat dissipation bracket, 3. radiator, 4. PCBA board, 5. positioning column, 6. screw mounting point, 7. first mounting structure, 8. second mounting structure, 9. third mounting structure, 10. lamp housing, 11. guide rib, 12. guide groove, 13. first ball joint, 14. support, 15. pin, 16. mounting seat, 17. dimming bracket, 18. second ball joint, 19. dimming motor. DETAILED DESCRIPTION

[0020] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0021] For ease of description, the words "upper," "lower," "left," and "right" appearing in this disclosure merely indicate the same orientation as in the accompanying drawings and do not limit the structure. These are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific manner. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Glossary: ​​ADB (Adaptive Driving Beam) refers to adaptive high beam.

[0023] Example 1: The present embodiment provides a split ADB reflective bowl high beam system, comprising a heat dissipation bracket 2 and a plurality of reflective bowls 1. The same number of reflective bowls 1 are provided on the upper and lower sides of the heat dissipation bracket 2. The reflective bowl 1 is detachably connected to the heat dissipation bracket 2 to form a split structure. The combination of multiple reflective bowls 1 can solve the shape that is difficult to achieve with a single reflective structure; and each reflective bowl 1 can be controlled individually, and the high beam can be controlled by controlling the lighting of each reflective bowl 1. For example, when meeting a vehicle, the upper reflective bowl 1 can be turned off to avoid glare to the oncoming vehicle, while keeping the high beam of the lower reflective bowl 1; a combination of high and low beams can also be achieved by arranging different reflective bowls 1, for example, some reflective bowls 1 keep the high beam, and the remaining reflective bowls 1 keep the low beam.

[0024] The number of the reflective bowls 1 can be set according to actual requirements. In this embodiment, six reflective bowls 1 are set. Figure 1As shown, three reflective bowls 1 are provided on the upper and lower sides of the heat sink bracket 2, and the upper and lower reflective bowls 1 are staggered to increase the coverage of the light. In this embodiment, each reflective bowl 1 is connected to the heat sink bracket 2 by screws, forming a detachable structure, which facilitates maintenance and replacement of the reflective bowls 1.

[0025] like Figure 3 and Figure 4 As shown, the PCBA board 4 with the LED lamp is arranged between the reflective bowl 1 and the heat dissipation bracket 2. The LED lamp is arranged in the direction corresponding to the reflective bowl 1. The reflective bowl 1 can reflect the light emitted by the LED lamp and concentrate it in one direction. This embodiment makes full use of the heat dissipation performance of the heat dissipation bracket 2, and can quickly conduct the heat generated by the PCBA board 4 to the radiator 3, thereby effectively reducing the operating temperature of the LED lamp.

[0026] The radiator 3 is mounted on the heat dissipation bracket 2. To ensure the installation stability of the reflective bowl 1 and the radiator 3, the reflective bowl 1 and the radiator 3 are positioned at least two points and then connected by screws. Figure 2 As shown, the heat sink 3 is equipped with at least two positioning posts 5 corresponding to each reflector bowl 1. The reflector bowls 1 are provided with positioning holes that correspond one-to-one with the positioning posts 5. After the positioning posts 5 engage the positioning holes, the reflector bowls 1 and the heat sink bracket 2 are connected via screws. Screw mounting points 6 are located between the positioning posts 5. When the reflector bowl 1 has two positioning points, the screw mounting points 6 and the two positioning posts 5 form a triangular distribution. When the reflector bowl 1 has three positioning points, the three positioning posts 5 are evenly distributed around the screw mounting points 6, thereby ensuring an effective connection between the reflector bowl 1 and the heat sink 3.

[0027] This embodiment adopts a split reflector bowl structure. Through the independent design, the light can achieve target illumination as much as possible; and each reflector bowl 1 can be controlled individually, and different reflector bowls 1 can be arranged to achieve a combination of high and low beams, and different reflector bowls 1 can be controlled to turn on and off to achieve ADB anti-glare high beam.

[0028] Specifically, the electronic control unit (ECU) performs dynamic adjustment of the high beam according to the preset control logic: (1) Meeting control: When an oncoming vehicle enters the high-beam illumination range, the ECU sends a command to shut off the light source in upper reflector bowl 1 to avoid glare to oncoming vehicles. At the same time, the high-beam illumination in lower reflector bowl 1 is maintained to ensure sufficient illumination on both sides of the road. When the oncoming vehicle leaves the high-beam illumination range, the ECU automatically restores the high-beam illumination in upper reflector bowl 1.

[0029] (2) Following vehicle control: When a vehicle is detected ahead, the ECU adjusts the brightness of reflective bowl 1 based on the vehicle's position and distance. For example, it turns off or dims the reflective bowl 1 near the vehicle ahead to avoid glare for the driver. If the vehicle ahead is farther away, the ECU can restore some of the high beams in reflective bowl 1 to ensure adequate road lighting.

[0030] (3) Cornering control: When the vehicle turns, the ECU adjusts the angle and on / off state of reflector bowl 1 based on the vehicle's steering angle and speed. For example, the dimming motor adjusts the angle of reflector bowl 1 so that the high beam always points toward the inside of the curve, improving the lighting effect. Simultaneously, the on / off combination of reflector bowl 1 is dynamically adjusted based on the curvature of the curve and the vehicle's driving posture to optimize the lighting range.

[0031] Example 2: This embodiment provides a car headlamp, including a lamp housing 10, in which the split-type ADB reflector bowl high beam system described in Example 1 is installed. Figure 5 As shown, the split ADB reflector bowl high beam system is connected to the lamp housing 10 through the first mounting structure 7, the second mounting structure 8 and the third mounting structure 9, and the first mounting structure 7, the second mounting structure 8 and the third mounting structure 9 form a triangular distribution, so that the split ADB reflector bowl high beam system is stably installed on the lamp housing 10.

[0032] The first mounting structure 7 is arranged at the edge of the lamp housing 10 and is composed of two parts. The first part is the X-shaped forward and backward movable mounting structure between the heat dissipation bracket 2 and the lamp housing 10, and the second part is the first ball joint 13. Figure 6 and Figure 7 As shown, the movable installation structure is composed of a guide rib 11 and a guide groove 12. The guide rib 11 is arranged on the inner wall of the lamp housing 10 and extends a certain length along the X direction; the heat dissipation bracket 2 is provided with a guide groove 12, which can move relative to the guide rib 11 and is engaged with the guide rib 11 to play a role of pre-positioning.

[0033] After the guide rib 11 and the guide groove 12 are matched, the heat dissipation bracket 2 and the lamp housing 10 bracket are further connected through the first ball joint 13. Figure 8 As shown, the end of the first ball head universal joint 13 away from the ball head is connected to the lamp housing 10, and the first ball head universal joint 13 is provided with a support 14, which has a spherical groove that cooperates with the ball head of the first ball head universal joint 13. The support 14 also has an extension part, and the extension part has a slot that cooperates with the heat dissipation bracket 2. The slot is engaged with the corresponding position of the heat dissipation bracket 2 and is fixed by screws.

[0034] The first ball joint 13 has angular adaptability, and even if there is a certain angular offset between the heat dissipation bracket 2 and the lamp housing 10, the first ball joint 13 can reliably transmit torque and movement; therefore, for the first mounting structure 7, through the cooperation of the guide groove 12 and the guide rib 11, combined with the connection structure of the first ball joint 13, it is possible to ensure a reliable connection between the split reflector bowl ADB system and the edge of the lamp housing 10.

[0035] like Figure 9 and Figure 10 As shown, a plurality of pins 15 are provided on the lamp housing 10, and the cross section of the pins 15 is a cross-shaped structure; the cross-shaped pins 15 can disperse stress and avoid stress concentration. The heat dissipation bracket 2 is provided with a mounting seat 16 corresponding to the pins 15, and the mounting seat 16 is provided with a slot, and the pins 15 are inserted into the slot to realize the plug-in fit between the lamp housing 10 and the heat dissipation bracket 2; the pins 15 and the mounting seat 16 constitute a second mounting structure 8. The cooperation between the pins 15 and the slots realizes preliminary positioning and connection. This structure also provides convenience when it is necessary to fine-tune the relative position of the lamp housing 10 and the heat dissipation bracket 2; for example, by slightly adjusting the insertion depth or direction of the pins 15, the angle of the reflective bowl 1 can be fine-tuned, thereby optimizing the distribution of the high beam.

[0036] In this embodiment, the third mounting structure 9 adopts an electric dimming mechanism, such as Figure 11 and Figure 12 As shown, the electric dimming mechanism includes a dimming motor 19, a dimming bracket 17 and a universal joint. One end of the dimming bracket 17 is connected to a second ball head universal joint 18, which cooperates with the support 14, and the support 14 is connected to the heat dissipation bracket 2 through screws; the other end of the heat dissipation bracket 2 is connected to the dimming motor 19, and the dimming motor 19 controls the movement of the dimming bracket 17 to change the angle of the heat dissipation bracket 2, thereby realizing the adjustment of the installation angle of the reflective bowl 1 and achieving the purpose of electric dimming.

[0037] The split-type ADB reflector bowl high beam system and the lamp housing 10 of this embodiment are provided with three mounting structures. The movable mounting structure and the ball-head universal joint of the first mounting structure 7 provide the ability to precisely adjust the position and angle of the reflector bowl 1, while the pin 15 of the second mounting structure 8 provides a stable support base for the above-mentioned adjustment. The combination of the two ensures the precise alignment and dynamic adjustment of the split-type ADB reflector bowl high beam system during assembly and use. At the same time, the electric dimming mechanism drives the universal joint through the dimming motor 19 to achieve dynamic adjustment of the reflector bowl angle. Therefore, through the synergistic effect of the three mounting structures in this embodiment, the reflector bowl ADB system can not only achieve precise position and angle adjustment, but also adapt to changes in the vehicle's driving posture and complex environments.

[0038] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A split ADB reflector bowl high beam system, characterized in that: It includes a heat dissipation bracket, a radiator and a reflective bowl. The upper and lower sides of the heat dissipation bracket are provided with the same number of reflective bowls, and each reflective bowl can be controlled separately. A PCBA board is arranged between the reflective bowl and the heat dissipation bracket, and the reflective bowl and the heat dissipation bracket are detachably connected; the radiator is installed on the heat dissipation bracket, and the reflective bowl is provided with at least two positioning points for cooperating with the radiator.

2. The split-type ADB reflector bowl high beam system according to claim 1, characterized in that: The reflective bowl is connected to the heat dissipation bracket via screws.

3. The split-type ADB reflector bowl high beam system according to claim 1, characterized in that: The heat sink is provided with at least two positioning columns and a plurality of screw mounting points corresponding to each reflective bowl.

4. A car headlamp, characterized in that: It comprises the split ADB reflector bowl high beam system as described in any one of claims 1-3.

5. The automobile headlamp according to claim 4, characterized in that: It also includes a lamp housing, wherein the split ADB reflector bowl high beam system is matched with the lamp housing through a first mounting structure, a second mounting structure and a third mounting structure; The first mounting structure, the second mounting structure and the third mounting structure form a triangle distribution, wherein the first mounting structure is used for X-direction assembly of the heat dissipation bracket and the lamp housing, and the third mounting structure is used for adjusting the angle of the reflective bowl to achieve the purpose of dimming.

6. The automobile headlamp according to claim 5, characterized in that: The lamp housing has guide ribs arranged along the X direction, and the heat dissipation bracket has guide grooves that cooperate with the guide ribs; the heat dissipation bracket cooperates with the housing through a first ball joint; The guide ribs, guide grooves and first ball joint form a first installation structure.

7. The automobile headlamp according to claim 6, characterized in that: One end of the first ball joint is connected to the lamp housing, and the other end is matched with the support, and the support is detachably connected to the heat dissipation bracket.

8. The automobile headlamp according to claim 5, characterized in that: The lamp housing is provided with a pin, the heat dissipation bracket is provided with a mounting seat, and the mounting seat is provided with a slot that matches the pin; the mounting seat and the slot constitute a second mounting structure.

9. The automobile headlamp according to claim 5, characterized in that: The third mounting structure includes a dimming bracket, and a second ball joint is installed at the mating end of the dimming bracket and the heat dissipation bracket.

10. The automobile headlamp according to claim 9, characterized in that: The dimming bracket is connected to the dimming motor.

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