Joint adjustment mechanism for a vehicle lighting module

Abstract

Joint adjustment mechanism for a vehicle lighting module, wherein the vehicle lighting module comprises a housing, characterized in that the joint adjustment mechanism comprises: a joint adjustment bracket which is articulated to the housing via a first ball head screw; a first module holder connected to one end of the articulated adjustment holder via a first connecting rod, wherein one end of the first connecting rod is hinged to the first module holder and the other end of the first connecting rod is hinged to the articulated adjustment holder, wherein the first module holder is rotatably connected to the housing via a first mounting arm; a second module holder connected to the other end of the articulated adjustment holder via a second connecting rod, wherein one end of the second connecting rod is hinged to the second module holder and the other end of the second connecting rod is hinged to the articulated adjustment holder, wherein the second module holder is rotatably connected to the housing via a second mounting arm, wherein the first connecting rod and the second connecting rod are arranged on both sides of the first ball head screw, wherein the joint adjustment bracket, using the first ball head screw as a pivot point, drives the first module bracket and the second module bracket to rotate up and down.

Description

Technical field

[0001] The present utility model relates to the technical field of vehicle lighting, in particular a joint adjustment mechanism for a vehicle lighting module. background

[0002] The high and low beam module is a key component of vehicle lighting and significantly impacts driver safety during nighttime driving. Currently, vehicle lighting systems with high and low beam modules include both integrated and separate modules. Separate high and low beam modules require synchronous adjustment of the light pattern during dimming to ensure smooth dimming. Consequently, a synchronized adjustment mechanism for high and low beam modules is needed.

[0003] In the prior art, a large, shared bracket is used for both high-beam and low-beam modules when they are positioned far apart. With such a wide spacing, the movement envelope of this structure occupies a considerable amount of space, posing significant design challenges. Simultaneously, the adjustment arm is excessively long, resulting in poor overall system stability. Content of the utility model

[0004] In view of this, the present utility model provides a joint adjustment mechanism for a vehicle lighting module whose movement envelope takes up little space and which has a simple structure as well as good structural stability.

[0005] To achieve the above-mentioned purpose, the present utility model provides the following technical solution.

[0006] A joint adjustment mechanism for a vehicle lighting module, wherein the vehicle lighting module comprises a housing, and wherein the joint adjustment mechanism comprises: a joint adjustment bracket which is articulated to the housing via a first ball head screw; a first module holder connected to one end of the articulated adjustment holder via a first connecting rod, wherein one end of the first connecting rod is hinged to the first module holder and the other end of the first connecting rod is hinged to the articulated adjustment holder, wherein the first module holder is rotatably connected to the housing via a first mounting arm; a second module holder connected to the other end of the articulated adjustment holder via a second connecting rod, wherein one end of the second connecting rod is hinged to the second module holder and the other end of the second connecting rod is hinged to the articulated adjustment holder, wherein the second module holder is rotatably connected to the housing via a second mounting arm, wherein the first connecting rod and the second connecting rod are arranged on both sides of the first ball head screw, wherein the joint adjustment bracket, using the first ball head screw as a pivot point, drives the first module bracket and the second module bracket to rotate up and down.

[0007] Alternatively, a first guide slot is provided on the housing, wherein the two ends of the joint adjustment bracket are each slidably connected in the first guide slot, the first guide slot limiting the rotation of the joint adjustment bracket within a plane perpendicular to the housing.

[0008] Alternatively, the joint adjustment mechanism further comprises a linear drive device, wherein the joint adjustment bracket is articulated to the linear drive device via a third connecting rod. wherein one end of the third connecting rod is hinged to the joint adjustment bracket, wherein the other end is connected to the power output end of the linear drive device, wherein the third connecting rod is arranged parallel to the second or the first connecting rod.

[0009] Alternatively, the first connecting rod is spaced a first distance from the first ball head screw and the second connecting rod is spaced a second distance from the first ball head screw, where the first distance is equal to the second distance.

[0010] Alternatively, the first connecting rod is spaced a third distance from the first support arm and the second connecting rod is spaced a fourth distance from the second support arm, where the third distance is equal to the fourth distance and the first distance is equal to the third distance.

[0011] Alternatively, the third connecting rod is arranged coaxially to the first connecting rod.

[0012] Alternatively, one end of the first mounting arm is hinged to the housing via a first connecting element, and the other end is hinged to the housing via a second connecting element. wherein one end of the second support arm is hinged to the housing via a third connecting element, and the other end is hinged to the housing via a fourth connecting element.

[0013] Alternatively, the first connecting element is a second ball head screw, the second connecting element is a third ball head screw, the third connecting element is a fourth ball head screw, and the fourth connecting element is a fifth ball head screw.

[0014] Alternatively, the first module bracket is a rectangular frame, wherein the first connecting rod is connected to a first corner point of the first module bracket, and the second ball-head screw is connected to a second corner point of the first module bracket, and the third ball-head screw is connected to a third corner point of the first module bracket. wherein the second module bracket is a rectangular frame, wherein the second connecting rod is connected to the first corner point of the second module bracket, the fourth ball head screw is connected to the second corner point of the second module bracket, and the fifth ball head screw is connected to the third corner point of the second module bracket.

[0015] Alternatively, the length of the second connecting rod is greater than the length of the first connecting rod.

[0016] The above technical solution shows that in the joint adjustment mechanism for a vehicle lighting module provided by the present utility model, a joint adjustment bracket is articulated to the housing. The joint adjustment bracket is articulated to a first module bracket via a first connecting rod, and the joint adjustment bracket is articulated to a second module bracket via a second connecting rod. The first module bracket rotates about a first mounting arm, and the second module bracket rotates about a second mounting arm. The first connecting rod moves downwards, causing the first module bracket to rotate clockwise about the first mounting arm, thereby rotating the first module downwards and deflecting the light emitted by the first module to the right.Simultaneously, the adjustable joint pushes the second connecting rod upwards, causing the second module mount to rotate clockwise around the second mounting arm. This rotates the second module upwards and deflects the light emitted by the second module to the right, thus achieving the rotation of the light pattern emitted by the first and second modules in the same rightward direction. The first connecting rod moves upwards, causing the first module mount to rotate counterclockwise around the first mounting arm. This rotates the first module upwards and deflects the light emitted by the first module to the left.Simultaneously, the articulated adjustment bracket pushes the second connecting rod downwards and causes the second module bracket to rotate counterclockwise around the second mounting arm, thereby rotating the second module downwards and deflecting the light emitted by the second module to the left. This results in the light pattern emitted by both the first and second modules being rotated in the same direction to the left. The articulated adjustment mechanism for a vehicle lighting module of the present utility model achieves a synchronous adjustment of the light pattern of the two modules. The movement envelope of the first or second connecting rod occupies little space during the drive process, the structure is simple, and the design of the adjustment arm has a shortened length and good structural stability. Description of the drawing

[0017] To more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that must be used in the embodiments or the description of the prior art are briefly presented. Obviously, the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained by a person skilled in the art without incurring any creative costs. Fig. Figure 1 is a schematic structural representation of the joint adjustment mechanism for a vehicle lighting module provided by an embodiment of the present utility model, viewed from an angle. Fig. Figure 2 is a schematic structural representation of the joint adjustment mechanism for a vehicle lighting module provided by an embodiment of the present utility model, viewed from a different angle. Fig. Figure 3 is a schematic structural representation of the joint adjustment mechanism for a vehicle lighting module provided by an embodiment of the present utility model, viewed from a different angle. Fig. Figure 4 is a schematic diagram of the exploded view of the joint adjustment mechanism for a vehicle lighting module provided by an embodiment of the present utility model. Fig. Figure 5 is a simplified schematic diagram of the joint adjustment mechanism for a vehicle lighting module provided by an embodiment of the present utility model. Fig. Figure 6 is a schematic diagram of the rotation of the mechanism in Fig. 5, after being subjected to a downward pulling force exerted by the engine. Fig. Figure 7 is a schematic structural representation of the joint adjustment bracket provided by an embodiment of the present utility model. Fig. Figure 8 is a schematic representation of the connection structure between the joint adjustment bracket and the first ball head screw, which is provided by an embodiment of the present utility model. Fig. Figure 9 is a schematic structural representation of a first ball head screw provided by an embodiment of the present utility model. Fig. Figure 10 is a schematic structural representation of the joint adjustment bracket connected to a housing, which is provided by an embodiment of the present utility model. Where: 1 first module holder 101 first mounting arm 102 first connecting element 103 second connecting element 2 first module 3 first axis of rotation 4 first connecting rod 5 Joint adjustment bracket 501 first connecting sleeve, 502 second connecting sleeve, 503 third connecting sleeve 6 first ball head screw 7 second connecting rod 8 second module holder 801 second mounting arm, 802 third connecting element, 803 fourth connecting element 9 second module 10 second axis of rotation 11 Engine 12 Vertical adjustment structure 13 Horizontal adjustment structure 14 third connecting rod 15 Motor mount 16 cases 1601 first guide slot Detailed forms of application

[0018] The present utility model discloses a joint adjustment mechanism for a vehicle lighting module, the movement envelope of which takes up little space and which has a simple structure as well as good structural stability.

[0019] The technical solutions in the embodiments of this utility model are clearly and completely described below in conjunction with the drawings in those embodiments. It is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments in this utility model, all other embodiments that a person skilled in the art could obtain without creative work fall within the scope of protection of this utility model.

[0020] With reference to the Fig. In the joint adjustment mechanism for a vehicle lighting module of the present utility model, the vehicle lighting module comprises a housing 16, wherein the joint adjustment mechanism includes a joint adjustment bracket 5, a first module bracket 1, and a second module bracket 8. The joint adjustment bracket 5 is articulated to the housing 16 via a first ball-head screw 6. The first module bracket 1 is connected to the joint adjustment bracket 5 via a first connecting rod 4, wherein one end of the first connecting rod 4 is articulated to the first module bracket 1 and the other end of the first connecting rod 4 is articulated to the joint adjustment bracket 5, wherein the first module bracket 1 is rotatably connected to the housing 16 via a first mounting arm 101. The first module 2 is mounted on the first module bracket 1.The second module holder 8 is connected to the articulated adjustment bracket 5 via a second connecting rod 7, with one end of the second connecting rod 7 being pivotally attached to the second module holder 8 and the other end of the second connecting rod 7 being pivotally attached to the articulated adjustment bracket 5, the second module holder 8 being rotatably connected to the housing 16 via a second mounting arm 801. The second module 9 is mounted on the second module holder 8. The first connecting rod 4 and the second connecting rod 7 are arranged on both sides of the first ball-head screw 6. Using the first ball-head screw 6 as a pivot point, the articulated adjustment bracket 5 drives the first module holder 1 and the second module holder 8 to rotate up and down.

[0021] The first connecting rod 4 and the second connecting rod 7 are arranged vertically to the housing 16, and the housing 16 serves to mount the vehicle lighting module.

[0022] In the joint adjustment mechanism for a vehicle lighting module provided by the present utility model, a joint adjustment bracket 5 is articulated to the housing, wherein the joint adjustment bracket 5 is articulated to a first module bracket 1 via a first connecting rod 4, and the joint adjustment bracket 5 is articulated to a second module bracket 8 via a second connecting rod 7, while the first module bracket 1 rotates about a first mounting arm 101 and the second module bracket 8 rotates about a second mounting arm 801. The first connecting rod 4 moves downwards and causes the first module bracket 1 to rotate clockwise about the first mounting arm 101, thereby rotating the first module 2 downwards and deflecting the light emitted by the first module 2 to the right.Simultaneously, the articulated adjustment bracket 5 pushes the second connecting rod 7 upwards and causes the second module bracket 8 to rotate clockwise around the second mounting arm 801, thereby rotating the second module 9 upwards and deflecting the light emitted by the second module 9 to the right, so that the rotation of the light pattern emitted by the first module 2 and the second module 9 in the same direction to the right is achieved. The first connecting rod 4 moves upwards and causes the first module bracket 1 to rotate counterclockwise around the first mounting arm 101, thereby rotating the first module 2 upwards and deflecting the light emitted by the first module 2 to the left.At the same time, the joint adjustment bracket 5 pushes the second connecting rod 7 downwards and causes the second module bracket 8 to rotate counterclockwise around the second bracket arm 801, causing the second module 9 to rotate downwards and deflecting the light emitted by the second module 9 to the left, so that the rotation of the light pattern emitted by the first module 2 and the second module 9 is realized in the same direction to the left, with left and right with respect to . Fig. 6 are specified. The joint adjustment mechanism for a vehicle lighting module of the present utility model achieves a synchronous adjustment of the light pattern of the two modules. The movement envelope of the first connecting rod 4 or the second connecting rod 7 occupies little space during the drive process, the structure is simple, and the design of the adjustment arm has a shortened length and good structural stability.

[0023] To limit the direction of rotation of the joint adjustment bracket 5, a first guide slot 1061 is provided on the housing 16. As shown in Fig. As shown in Figure 10, the two ends of the joint adjustment bracket 5 are each slidably connected in the first guide slot 1061 on the housing 16, the guide direction of the first guide slot 1061 being perpendicular to the housing 16, which allows the joint adjustment bracket 5 to rotate only about the first ball-head screw 6 within a plane perpendicular to the housing 16 without wobbling. The cross-section of the first guide slot 1061 is C-shaped.

[0024] To implement the electric drive of the joint adjustment bracket 5, the joint adjustment mechanism further comprises a linear drive device, wherein the joint adjustment bracket 5 is articulated to the linear drive device via a third connecting rod 14. One end of the third connecting rod 14 is articulated to the joint adjustment bracket 5, the other end being connected to the power output end of the linear drive device, the third connecting rod 14 being arranged parallel to the second connecting rod 7 or the first connecting rod 4. In one embodiment, the linear drive device is a motor 11. The motor 11 is rigidly connected to the motor mount 15.The motor mount 15 is slidably connected in a second guide slot on the housing 16, the guide direction of the second guide slot being vertical to the housing 16, and the motor mount 15 is height-adjustable by a vertical adjustment structure 12 to change the mounting height of the motor mount 15 on the housing 16, the vertical adjustment structure 12 being mounted on the housing 16, and forms a transmission structure commonly used in previous technology, for example a worm gear mechanism, which will not be discussed in more detail here.

[0025] In one embodiment, the first connecting rod 4 is spaced a first distance d1 from the first ball head screw 6 and the second connecting rod 7 is spaced a second distance d2 from the first ball head screw 6, wherein the first distance d1 is equal to the second distance d2, so that the first connecting rod 4 and the second connecting rod 7 move by the same distance when the joint adjustment bracket 5 is rotated about the first ball head screw 6.To achieve rotational synchronization of the first module bracket 1 and the second module bracket 8, and thus rotational synchronization of the first module 2 and the second module 9, the first connecting rod 4 is spaced a third distance d3 from the first bracket arm 101, and the second connecting rod 7 is spaced a fourth distance d4 from the second bracket arm 801, where the third distance d3 is equal to the fourth distance d4 and the first distance d1 is equal to the third distance d3, i.e., d1 = d2 = d3 = d4. The length of the second connecting rod 7 is greater than the length of the first connecting rod 4, and the second connecting rod 7 is a long rod. To improve the structural strength of the second connecting rod 7, it is provided with a structural stiffening plate.

[0026] Preferably, the third connecting rod 14 is arranged coaxially with the first connecting rod 4, so that the movement path of the third connecting rod 14 is equal to the movement path of the first connecting rod 4, thus allowing the movement path of the first connecting rod 4 to be obtained without calculation, which is easy to use. In other embodiments, the third connecting rod 14 can also form a smaller angle with the first connecting rod 4.

[0027] In particular, one end of the first support arm 101 is articulated to the housing 16 via a first connecting element 102, and the other end is articulated to the housing 16 via a second connecting element 103, such that the connecting line of the first connecting element 102 and the second connecting element 103 forms a first axis of rotation 3. The first connecting rod 4 does not intersect the first axis of rotation 3, so that the first connecting rod 4 can drive the first module support 1 to rotate about the first axis of rotation 3. In one embodiment, the first connecting element 102 is a second ball-head screw and the second connecting element 103 is a third ball-head screw, wherein the threaded ends of the second and third ball-head screws are connected to the housing 16 and the ball-head ends are rotatably connected to the first support arm 101.One end of the second support arm 801 is hinged to the housing 16 via a third connecting element 802, and the other end is hinged to the housing 16 via a fourth connecting element 803, such that the connecting line of the third connecting element 802 and the fourth connecting element 803 forms a second axis of rotation 10. The second connecting rod 7 does not intersect the second axis of rotation 10, so that the second connecting rod 7 can drive the second module support 8 to rotate about the second axis of rotation 10. In one embodiment, the third connecting element 802 is a fourth ball-head screw and the fourth connecting element 803 is a fifth ball-head screw, wherein the threaded ends of the fourth and fifth ball-head screws are connected to the housing 16 and the ball-head ends are rotatably connected to the second support arm 801. The first axis of rotation 3 is arranged parallel to the second axis of rotation 10.

[0028] In a specific embodiment, the first module holder 1 is a rectangular frame, wherein the first connecting rod 4 is connected to a first corner point of the first module holder 1, the second ball-head screw is connected to a second corner point of the first module holder 1, and the third ball-head screw is connected to a third corner point of the first module holder 1, as shown in Fig. 1 shown. At the same time, the second module bracket 8 is a rectangular frame, wherein the second connecting rod 7 is connected to the first corner point of the second module bracket 8, the fourth ball-head screw is connected to the second corner point of the second module bracket 8, and the fifth ball-head screw is connected to the third corner point of the second module bracket 8, as shown in Fig. 1 shown. The first connecting rod 4 is arranged parallel to the second connecting rod 7, the length of the second connecting rod 7 being greater than the length of the first connecting rod 4. The second module holder 8 is connected to a horizontal adjustment structure 13, and the horizontal adjustment structure 13 is a horizontal position adjustment structure of the module holder, which is commonly used in modules in the prior art and is not repeated here.

[0029] To facilitate connection with the connecting element, the joint adjustment bracket 5 is provided with a first connecting sleeve 501, a second connecting sleeve 502 and a third connecting sleeve 503, as shown in the Fig. 7 and Fig. Figure 8 is shown. The first connecting sleeve 501 is fixedly connected to a first ball joint groove, which is articulated to the ball head of the first ball head screw 6. The second connecting sleeve 502 is fixedly connected to a second ball joint groove, which is articulated to the first connecting rod 4. The third connecting sleeve 503 is fixedly connected to a third ball joint groove, which is articulated to the second connecting rod 7. Fig. Figure 9 shows a schematic representation of the structure of the first ball head screw 6. The first ball joint groove, the second ball joint groove and the third ball joint groove are all ball joint groove structures commonly used in the prior art and are not repeated here.

[0030] In the joint adjustment mechanism for a vehicle lighting module of the present utility model, when electrically adjusted downwards, the power output end of the motor 11 retracts and pulls the joint adjustment bracket 5 to rotate counterclockwise around the pivot point. The first connecting rod 4 moves downwards and causes the first module bracket 1 to rotate clockwise downwards around the first axis of rotation 3. This results in a clockwise downward rotation of the first module bracket 1, causing the first module 2 to rotate downwards and deflecting the light emitted by the first module 2 to the right. Simultaneously, the second connecting rod 7 moves upwards and causes the second module bracket 8 to rotate clockwise upwards around the second axis of rotation 10. This causes the second module 9 to rotate upwards and deflects the light emitted by the second module 9 to the right.This ensures that the rotation of the light pattern emitted by the first module 2 and the second module 9 is realized in the same direction to the right, as in . Fig. 6 is displayed. When electrically adjusted upwards, the power output end of the motor 11 extends and pushes the joint adjustment bracket 5 to rotate clockwise around the pivot point. The first connecting rod 4 moves upwards and drives the first module bracket 1 to rotate counterclockwise upwards around the first axis of rotation 3.

[0031] This causes the second module 2 to rotate upwards, deflecting the light emitted by the second module 2 to the left. Simultaneously, the second connecting rod 7 moves downwards, causing the second module holder 8 to rotate counterclockwise downwards around the second axis of rotation 10. This causes the second module 9 to rotate downwards, deflecting the light emitted by the second module 9 to the left. This results in the rotation of the light pattern emitted by the first module 2 and the second module 9 in the same leftward direction.

[0032] In describing this solution, it must be understood that the orientation or position relationships indicated by the terms "top", "bottom", "vertical", "inside", "outside", etc., are based on the orientation or position relationships shown in the drawings and serve only to facilitate and simplify the description of the utility model, rather than indicating or implying that the devices or elements specified for this solution must have a particular orientation, be installed and function in a particular orientation.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating or implying a relative meaning or as implying the number of specified technical features. A feature defined as "first" or "second" may explicitly or implicitly include one or more of these features. In the description of this scheme, "several" means two or more unless explicitly defined otherwise.

[0034] Each embodiment in this description is described step by step, and each embodiment focuses on the differences from other embodiments, and the identical and similar parts between the embodiments may be referenced.

[0035] The above description of the disclosed embodiments enables the person skilled in the art to implement or use the present utility model. A multitude of modifications to these embodiments will be obvious to the person skilled in the art, and the general principles defined here can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown here, but will be consistent, in the broadest sense, with the principles and novel features disclosed herein.

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