A three-module linkage dimming mechanism

Abstract

The present invention particularly relates to a three-module linkage dimming mechanism, comprising a low beam module subassembly, a corner light module subassembly, a high beam module subassembly, a linkage bracket and a dimming motor; the low beam module subassembly comprises a low beam bracket, the corner light module subassembly comprises a corner light bracket, the high beam module subassembly comprises a high beam bracket, one side of the low beam bracket is rotationally matched with a first ball head screw, one side of the corner light bracket is rotationally matched with a second ball head screw, one side of the high beam bracket is rotationally matched with a third ball head screw, the low beam bracket, the corner light bracket and the high beam bracket are all rotationally matched with the linkage bracket and are simultaneously perpendicular to the linkage bracket, the linkage bracket is vertically connected to the telescopic rod of the dimming motor, the dimming motor simultaneously drives the low beam bracket to rotate around the side where the first ball head screw is located, drives the corner light bracket to rotate around the side where the second ball head screw is located, and the high beam bracket to rotate around the side where the third ball head screw is located, and the rotation radius, direction and angle of the three are the same.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile headlamp dimming, and in particular relates to a three-module linkage dimming mechanism. Background Art

[0002] As the development of automotive lighting technology is getting faster and faster, the requirements of various OEMs for the light type of automotive lights are getting higher and higher. In order to meet the higher requirements for light types, multiple modules need to be superimposed. For example, the corner light module is superimposed on the basis of the low beam module and the high beam module. The corner light module is a lamp that provides auxiliary lighting for the corner of the road near the front of the vehicle, or provides auxiliary lighting for the side or rear of the vehicle. When the lighting conditions in the road environment are insufficient, the corner light plays a certain auxiliary lighting role and provides a guarantee for driving safety. In order to make the car safer during driving, more and more OEMs require that the car lights add the function of corner lights. In this way, the design space demand for the dimming structure of each module will become larger and larger, which will increase the volume of the car lights, increase the weight of the car lights, and increase the cost. Therefore, it is of great significance to develop a linkage dimming mechanism. Summary of the invention

[0003] In order to solve the problem in the prior art that the dimming structure after the low beam module, the high beam module and the corner light module are superimposed occupies a large space and the weight of the vehicle light is increased, the present invention provides a three-module linkage dimming mechanism.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is as follows: a three-module linkage dimming mechanism, including a low beam module component assembly, a corner light module component assembly, a high beam module component assembly, a linkage bracket and a dimming motor; the low beam module component assembly includes a low beam bracket, the corner light module component assembly includes a corner light bracket, and the high beam module component assembly includes a high beam bracket, one side of the low beam bracket is rotationally matched with a first ball head screw, one side of the corner light bracket is rotationally matched with a second ball head screw, and one side of the high beam bracket is rotationally matched with a third ball head screw, the low beam bracket, the corner light bracket and the high beam bracket are all rotationally matched with the linkage bracket, the linkage bracket is simultaneously perpendicular to the low beam bracket, the corner light bracket and the high beam bracket, the linkage bracket is vertically connected to the telescopic rod of the dimming motor, the dimming motor simultaneously drives the low beam bracket to rotate around the side where the first ball head screw is located, drives the corner light bracket to rotate around the side where the second ball head screw is located, and the high beam bracket to rotate around the side where the third ball head screw is located, and the rotation radius, direction and angle of the three are the same.

[0005] Preferably, linkage ball heads are provided at both ends of the linkage bracket, a ball seat groove is provided in the middle of the linkage bracket, a linkage ball head is also provided on the corner light bracket, a fixed ball seat is provided on the low beam bracket, a ball seat bushing is provided on the high beam bracket, the linkage ball heads at both ends of the linkage bracket are respectively rotatably matched with the fixed ball seat of the low beam bracket and the ball seat bushing of the high beam bracket, and the linkage ball head of the corner light bracket is rotatably matched with the ball seat groove; a motor ball seat is provided on the linkage bracket, a motor ball head is provided on the telescopic rod of the dimming motor, and the motor ball head is rotatably matched with the motor ball seat; a positioning rib is provided on the linkage bracket, and the positioning rib cooperates with the housing of the headlight to limit the movement of the linkage bracket in the Y and Z directions, and the telescopic rod of the dimming motor drives the linkage bracket to move in the X direction. It is ensured that the telescopic rod of the dimming motor drives the linkage bracket to move smoothly in the X direction, thereby driving the low beam module sub-assembly, the corner light module sub-assembly and the high beam module sub-assembly to be linked and dimmed.

[0006] Furthermore, the distances from the linkage ball head of the corresponding linkage bracket to the rotation axis of the low beam bracket, the distances from the linkage ball head of the corner light bracket to the rotation axis of the corner light bracket, and the distances from the linkage ball head of the corresponding linkage bracket to the rotation axis of the high beam bracket are all equal. The structure of the three-module linkage dimming mechanism is simple and reliable, ensuring that the dimming motor drives the low beam bracket, corner light bracket and high beam bracket to rotate at the same radius, direction and angle at the same time.

[0007] Preferably, the low beam module subassembly further comprises a low beam module, which is a lens or a reflector, and is arranged on a low beam bracket; the low beam bracket is provided with two first bushings in sequence along its rotation axis, and the number of the first ball screws is two, which are fixedly arranged on the housing of the headlamp, and the first ball screws are rotationally matched with the corresponding first bushings, so as to ensure that the dimming motor can drive the low beam module subassembly to rotate smoothly.

[0008] Preferably, the corner lamp module subassembly further includes a corner lamp module and a radiator, the corner lamp module is a reflector, and the corner lamp module and the radiator are both arranged on a corner lamp bracket; the corner lamp bracket is provided with two second bushings in sequence along its rotation axis, the number of the second ball screws is two, the second ball screws are fixedly arranged on the housing of the headlamp, and the second ball screws are rotationally matched with the corresponding second bushings, so as to ensure that the dimming motor can drive the corner lamp module subassembly to rotate smoothly.

[0009] Preferably, the high beam module subassembly further comprises a high beam module, which is a lens or a reflector, and is arranged on a high beam bracket; two third bushings are arranged on the high beam bracket in sequence along its rotation axis, and the number of the third ball screws is two, and the third ball screws are fixedly arranged on the housing of the headlamp, and the third ball screws are rotationally matched with the corresponding third bushings, so as to ensure that the dimming motor can drive the high beam module subassembly to rotate smoothly.

[0010] Furthermore, a motor bracket is fixedly arranged on the housing of the headlamp, and the dimming motor is fixedly arranged on the motor bracket, so as to facilitate the installation of the dimming motor.

[0011] Beneficial effect: When the three-module linkage dimming mechanism of the present invention is used, the first ball screw, the second ball screw, the third ball screw and the motor bracket are all crimped and fixed on the housing of the headlamp. When the dimming motor receives the dimming signal, the telescopic rod of the dimming motor extends or retracts, driving the linkage bracket to move smoothly in the X direction, while driving the low beam module subassembly to rotate around the line connecting the two first ball screws, driving the corner light module subassembly to rotate around the line connecting the two second ball screws, and driving the high beam module subassembly to rotate around the line connecting the two third ball screws, and the rotation radius, direction and angle of the three are consistent, effectively realizing the linkage dimming function of the three modules. The overall layout of the three-module linkage dimming mechanism is reasonable and compact, and the design is ingenious. The linkage dimming of the three modules can be realized with only one linkage bracket, which simplifies the dimming structure inside the lamp, promotes the miniaturization and lightweight of the headlamp, and the dimming operation is convenient and fast, with reduced costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the three-module linkage dimming mechanism of the present invention;

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the three-module linkage dimming mechanism of the present invention from another angle;

[0015] Figure 3 It is a top view schematic diagram of the three-module linkage dimming mechanism of the present invention;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the linkage bracket of the three-module linkage dimming mechanism of the present invention;

[0017] Figure 5 It is a schematic diagram of the partial three-dimensional structure of the fixed ball seat of the three-module linkage dimming mechanism of the present invention;

[0018] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the ball seat groove of the three-module linkage dimming mechanism of the present invention;

[0019] Figure 7 It is a partial three-dimensional structural schematic diagram of the ball seat bushing of the three-module linkage dimming mechanism of the present invention;

[0020] Figure 8 It is a schematic diagram of the principle of the three-module linkage dimming mechanism of the present invention;

[0021] In the figure: 1. low beam module component assembly, 11. low beam bracket, 12. low beam module, 13. first ball head screw, 14. first bushing, 15. fixed ball seat, 2. corner lamp module component assembly, 21. corner lamp bracket, 22. corner lamp module, 23. radiator, 24. second ball head screw, 25. second bushing, 3. high beam module component assembly, 31. high beam bracket, 32. high beam module, 33. third ball head screw, 34. third bushing, 35. ball seat bushing, 4. linkage bracket, 41. linkage ball head, 42. ball seat groove, 45. motor ball seat, 46. positioning rib, 5. dimming motor, 51. motor ball head, 6. motor bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figures 1 to 8As shown, a three-module linkage dimming mechanism includes a low beam module assembly 1, a corner light module assembly 2, a high beam module assembly 3, a linkage bracket 4 and a dimming motor 5; the low beam module assembly 1 includes a low beam bracket 11, the corner light module assembly 2 includes a corner light bracket 21, and the high beam module assembly 3 includes a high beam bracket 31, one side of the low beam bracket 11 is rotatably matched with a first ball screw 13, one side of the corner light bracket 21 is rotatably matched with a second ball screw 24, and one side of the high beam bracket 31 is rotatably matched with a third ball screw 33 Rotationally coordinated, the low beam bracket 11, the corner light bracket 21 and the high beam bracket 31 are all rotationally coordinated with the linkage bracket 4, and the linkage bracket 4 is perpendicular to the low beam bracket 11, the corner light bracket 21 and the high beam bracket 31 at the same time. The linkage bracket 4 is vertically connected to the telescopic rod of the dimming motor 5, and the dimming motor 5 simultaneously drives the low beam bracket 11 to rotate around the edge where the first ball head screw 13 is located, drives the corner light bracket 21 to rotate around the edge where the second ball head screw 24 is located, and the high beam bracket 31 to rotate around the edge where the third ball head screw 33 is located, and the rotation radius, direction and angle of the three are the same.

[0025] In order to achieve smooth linkage dimming of the low beam module subassembly 1, the corner light module subassembly 2 and the high beam module subassembly 3, in this embodiment, Figures 1 to 7 As shown, linkage ball heads 41 are provided at both ends of the linkage bracket 4, a ball seat groove 42 is provided in the middle of the linkage bracket 4, a linkage ball head 41 is also provided on the corner lamp bracket 21, a fixed ball seat 15 is provided on the low beam bracket 11, and a ball seat bushing 35 is provided on the high beam bracket 31. The linkage ball heads 41 at both ends of the linkage bracket 4 are respectively rotatably matched with the fixed ball seat 15 of the low beam bracket 11 and the ball seat bushing 35 of the high beam bracket 31, and the linkage ball head 41 of the corner lamp bracket 21 is rotatably matched with the ball seat groove 42; the corresponding distance from the linkage ball head 41 of the linkage bracket 4 to the rotation axis of the low beam bracket 11, and the distance from the linkage ball head 41 of the corner lamp bracket 21 to the rotation axis of the corner lamp bracket 21 are The distance between the linkage ball head 41 of the linkage bracket 4 and the rotation axis of the high beam bracket 31 is equal; the linkage bracket 4 is provided with a motor ball seat 45, and the telescopic rod of the dimming motor 5 is provided with a motor ball head 51, and the motor ball head 51 is rotatably matched with the motor ball seat 45; the linkage bracket 4 is provided with a positioning rib 46, and the positioning rib 46 cooperates with the housing of the headlamp (not shown in the figure) to limit the movement of the linkage bracket 4 in the Y and Z directions, and the telescopic rod of the dimming motor 5 drives the linkage bracket 4 to move in the X direction (vehicle coordinate system: when the vehicle is at rest on a horizontal road, the X-axis is parallel to the ground and points to the front of the vehicle, the Z-axis passes through the center of mass of the vehicle and points upward, and the Y-axis points to the left side of the driver).

[0026] Specifically, in this embodiment, Figure 1 , Figure 2 and Figure 8 As shown, the low beam module assembly 1 also includes a low beam module 12, and the low beam module 12 is a lens or a reflector, and the low beam module 12 is arranged on a low beam bracket 11; two first bushings 14 are sequentially arranged on the low beam bracket 11 along its rotation axis, and the number of the first ball screws 13 is two, and the first ball screws 13 are crimped and fixed on the housing of the headlamp, and the first ball screws 13 are rotatably matched with the corresponding first bushings 14 to ensure that the dimming motor 5 can drive the low beam module assembly 1 to rotate smoothly.

[0027] Specifically, in this embodiment, Figure 1 , Figure 2 and Figure 8 As shown, the corner lamp module assembly 2 also includes a corner lamp module 22 and a radiator 23. The corner lamp module 22 is a reflector. The corner lamp module 22 and the radiator 23 are both arranged on a corner lamp bracket 21. Two second bushings 25 are sequentially arranged on the corner lamp bracket 21 along its rotation axis. The number of the second ball screws 24 is two. The second ball screws 24 are crimped and fixed on the housing of the headlamp. The second ball screws 24 are rotatably matched with the corresponding second bushings 25 to ensure that the dimming motor 5 can drive the corner lamp module assembly 2 to rotate smoothly.

[0028] Specifically, in this embodiment, Figure 1 , Figure 2 and Figure 8 As shown, the high beam module sub-assembly 3 also includes a high beam module 32, which is a lens or a reflector, and the high beam module 32 is arranged on a high beam bracket 31; two third bushings 34 are sequentially arranged on the high beam bracket 31 along its rotation axis, and the number of the third ball screws 33 is two, and the third ball screws 33 are crimped and fixed on the housing of the headlamp, and the third ball screws 33 are rotatably matched with the corresponding third bushings 34 to ensure that the dimming motor 5 can drive the high beam module sub-assembly 3 to rotate smoothly.

[0029] Specifically, in order to facilitate the installation of the dimming motor 5, in this embodiment, a motor bracket 6 is provided on the housing of the headlamp, and the motor bracket 6 is crimped and fixed on the housing of the headlamp, such as Figure 1 and Figure 2 As shown, the dimming motor 5 is fixedly arranged on a motor bracket 6 .

[0030] Here’s how it works:

[0031] When the three-module linkage dimming mechanism is in use, the first ball screw 13, the second ball screw 24, the third ball screw 33 and the motor bracket 6 are all crimped and fixed on the housing of the headlamp. When the dimming motor 5 receives the dimming signal, the telescopic rod of the dimming motor 5 extends or retreats, driving the linkage bracket 4 to move smoothly in the X direction, and at the same time drives the low beam module subassembly 1 to rotate around the line connecting the two first ball screws 13, drives the corner light module subassembly 2 to rotate around the line connecting the two second ball screws 24, and drives the high beam module subassembly 3 to rotate around the line connecting the two third ball screws 33, and the rotation radius, direction and angle of the three are consistent, such as Figure 8 As shown, the linkage dimming function of the three modules is effectively realized. The overall layout of the linkage dimming mechanism of the three modules is reasonable and compact, and the design is ingenious. The linkage dimming of the three modules can be realized with only one linkage bracket 4, which simplifies the dimming structure inside the lamp, promotes the miniaturization and lightweight of the headlamp, and the dimming operation is convenient and fast, and the cost is reduced.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A three-module linkage dimming mechanism, characterized in that: The invention comprises a low beam module assembly (1), a corner light module assembly (2), a high beam module assembly (3), a linkage bracket (4) and a dimming motor (5); the low beam module assembly (1) comprises a low beam bracket (11), the corner light module assembly (2) comprises a corner light bracket (21), the high beam module assembly (3) comprises a high beam bracket (31), one side of the low beam bracket (11) is rotatably matched with a first ball head screw (13), one side of the corner light bracket (21) is rotatably matched with a second ball head screw (24), one side of the high beam bracket (31) is rotatably matched with a third ball head screw (33), and the low beam bracket (11) is rotatably matched with a first ball head screw (13). The low-beam bracket (11), the corner light bracket (21) and the high-beam bracket (31) are all rotatably matched with the linkage bracket (4); the linkage bracket (4) is perpendicular to the low-beam bracket (11), the corner light bracket (21) and the high-beam bracket (31); the linkage bracket (4) is vertically connected to the telescopic rod of the dimming motor (5); the dimming motor (5) simultaneously drives the low-beam bracket (11) to rotate around the edge where the first ball head screw (13) is located, drives the corner light bracket (21) to rotate around the edge where the second ball head screw (24) is located, and drives the high-beam bracket (31) to rotate around the edge where the third ball head screw (33) is located, and the rotation radius, direction and angle of the three are all the same; Both ends of the linkage bracket (4) are provided with linkage ball heads (41), a ball seat groove (42) is provided in the middle of the linkage bracket (4), the corner light bracket (21) is also provided with a linkage ball head (41), the low beam bracket (11) is provided with a fixed ball seat (15), and the high beam bracket (31) is provided with a ball seat bushing (35), the linkage ball heads (41) at both ends of the linkage bracket (4) are rotatably matched with the fixed ball seat (15) of the low beam bracket (11) and the ball seat bushing (35) of the high beam bracket (31), respectively, and the corner light bracket (21) is provided with a linkage ball head (41). The linkage ball head (41) of the bracket (21) is rotatably matched with the ball seat groove (42); the linkage bracket (4) is provided with a motor ball seat (45), the telescopic rod of the dimming motor (5) is provided with a motor ball head (51), and the motor ball head (51) is rotatably matched with the motor ball seat (45); the linkage bracket (4) is provided with a positioning rib (46), and the positioning rib (46) cooperates with the housing of the headlight to limit the movement of the linkage bracket (4) in the Y direction and the Z direction, and the telescopic rod of the dimming motor (5) drives the linkage bracket (4) to move in the X direction.

2. The three-module linkage dimming mechanism according to claim 1, characterized in that: The distance from the linkage ball head (41) of the corresponding linkage bracket (4) to the rotation axis of the low beam bracket (11), the distance from the linkage ball head (41) of the corner light bracket (21) to the rotation axis of the corner light bracket (21), and the distance from the linkage ball head (41) of the corresponding linkage bracket (4) to the rotation axis of the high beam bracket (31) are all equal.

3. The three-module linkage dimming mechanism according to claim 1 or 2, characterized in that: The low beam module assembly (1) further comprises a low beam module (12), wherein the low beam module (12) is a lens or a reflector, and the low beam module (12) is arranged on a low beam bracket (11); two first bushings (14) are arranged in sequence on the low beam bracket (11) along its rotation axis, and the number of the first ball screws (13) is two, and the first ball screws (13) are fixedly arranged on the housing of the headlamp, and the first ball screws (13) are rotationally matched with the corresponding first bushings (14).

4. The three-module linkage dimming mechanism according to claim 1 or 2, characterized in that: The corner lamp module assembly (2) further comprises a corner lamp module (22) and a heat sink (23); the corner lamp module (22) is a reflector; the corner lamp module (22) and the heat sink (23) are both arranged on a corner lamp bracket (21); two second bushings (25) are arranged in sequence on the corner lamp bracket (21) along its rotation axis; the number of the second ball screws (24) is two; the second ball screws (24) are fixedly arranged on the housing of the headlamp; the second ball screws (24) are rotationally matched with the corresponding second bushings (25).

5. The three-module linkage dimming mechanism according to claim 1 or 2, characterized in that: The high-beam module subassembly (3) further comprises a high-beam module (32), the high-beam module (32) being a lens or a reflector, and the high-beam module (32) being arranged on a high-beam bracket (31); two third bushings (34) are arranged in sequence on the high-beam bracket (31) along its rotation axis, the number of the third ball screws (33) being two, the third ball screws (33) being fixedly arranged on a housing of the headlamp, and the third ball screws (33) being rotationally matched with the corresponding third bushings (34).

6. The three-module linkage dimming mechanism according to claim 1 or 2, characterized in that: A motor bracket (6) is fixedly arranged on the housing of the headlamp, and the dimming motor (5) is fixedly arranged on the motor bracket (6).

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