Light adjusting mechanism, vehicle lamp module, vehicle lamp and vehicle

Abstract

A kind of light adjusting mechanism, including first ball joint (1a), second ball joint (1b), third ball joint (1c) and sliding connector (6);First ball joint (1a) and second ball joint (1b) one end with the lighting unit (2) is connected, the other end is connected with support frame or lamp body;Lighting unit (2) is equipped with sliding support (4), sliding connector (6) can slide on sliding support (4), third ball joint (lc) one end with sliding connector (6) sliding connection, the other end can move on support frame or lamp body, and sliding connector (6) is slid on sliding support (4) by sliding connector (6), realize the light adjustment in first direction.This light adjusting mechanism can realize the miniaturization of car lamp module first direction size, improve the light adjustment precision in first direction, and manufacture is convenient.A kind of car lamp module, car lamp and vehicle comprising the light adjusting mechanism described above.

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle lamp component, in particular, to a light adjusting mechanism. In addition, the present application also relates to a vehicle lamp module, a vehicle lamp and a vehicle. BACKGROUND

[0002] A vehicle lamp, especially a headlamp, needs to be adjusted to a standard position in light shape before use or during installation. Therefore, a light adjusting mechanism needs to be provided on the vehicle lamp module to adjust the projected light shape of the lighting unit in up-down or left-right direction so as to be projected to the designed standard position and form a standard light shape (the light shape in the present specification refers to the light shape projected on a standard screen, and for the headlamp low beam or high beam standard screen, it is a vertical screen set at 25m in front of the vehicle lamp module). As shown in the figure, P0 is the standard position of the light shape, P1, P2, P3 and P4 are the light shapes formed by the vehicle lamp module with initial position offset, wherein the light shape shown by P1 needs to be adjusted downward, the light shape shown by P2 needs to be adjusted upward, the light shape shown by P3 needs to be adjusted to the right, and the light shape shown by P4 needs to be adjusted to the left, so as to obtain the light shape P0 in the standard position. Figures 1 to 3

[0003] The existing light adjusting mechanism usually uses three ball screw assemblies to adjust the light. The screw of the ball screw assembly is provided with a thread, which is connected with a support frame or a lamp body through the thread, the front end of the screw is provided with a ball head, the ball head is movably connected with a ball nut fixed on the lighting unit, and rotating the screw of the ball screw assembly can drive the lighting unit to move relative to the support frame or the lamp body. Usually, one of the three ball screw assemblies is a fixed ball screw assembly which is fixed relative to the support frame or the lamp body, and the other two are adjustable ball screw assemblies which can move forward and backward relative to the support frame or the lamp body. One of the two adjustable ball screw assemblies is arranged below the fixed ball screw assembly, and rotating the screw of the adjustable ball screw assembly can make the lighting unit rotate up and down relative to the support frame or the lamp body about a horizontal axis, so as to realize the up-down direction adjustment; the other is arranged on the left side or the right side of the fixed ball screw assembly, and rotating the screw of the adjustable ball screw assembly can make the lighting unit rotate left and right relative to the support frame or the lamp body about a vertical axis, so as to realize the left-right direction adjustment.

[0004] ​The existing light adjusting mechanism can realize light adjustment in up-down and left-right directions, but has at least the following two defects: first, in order to realize light adjustment in up-down and left-right directions, adjustable ball screw assemblies need to be arranged on the side and the lower side of the fixed ball screw assembly, and the size of the ball nut is usually large, so that the overall size of the light adjusting mechanism in the up-down and left-right directions is large, which cannot meet the flat trend of the current vehicle lamp module and the increasingly small arrangement space requirement of the vehicle lamp module; second, if the size of the vehicle lamp module in the up-down or left-right direction is small, the distance between the two ball screw assemblies in the up-down or left-right direction is short, the force arm of the adjusting force formed when adjusting the screw of the ball screw assembly is short, and the requirement for the adjusting force of the adjusting ball screw assembly is increased; at the same time, the same moving distance of the adjustable ball screw assembly forms a larger rotation angle of the lighting unit, which reduces the light adjustment precision. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a light adjusting mechanism with small space occupation, high light adjustment precision and convenient manufacturing.

[0006] The further technical problem to be solved by the present application is to provide a vehicle lamp module with a light adjusting mechanism of simple structure, small space occupation and high light adjustment precision.

[0007] The further technical problem to be solved by the present application is to provide a vehicle lamp with a light adjusting mechanism of small space occupation and high light adjustment precision.

[0008] The further technical problem to be solved by the present application is to provide a vehicle with a small vehicle lamp and high light shape positioning precision.

[0009] In order to solve the above technical problems, the first aspect of the present application provides a light adjusting mechanism for adjusting a lighting unit, which comprises a first ball joint connector, a second ball joint connector, a third ball joint connector and a sliding connector; one end of the first ball joint connector and the second ball joint connector is connected with the lighting unit, and the other end is connected with a support frame or a lamp body; a sliding support is arranged on the lighting unit, the sliding connector is in sliding connection with the sliding support, one end of the third ball joint connector is in sliding connection with the sliding connector, and the other end is supported on the support frame or the lamp body; the third ball joint connector can move relative to the support frame or the lamp body, so as to drive the sliding connector to move, and drive the sliding support and the lighting unit connected therewith to rotate through the sliding connector to realize light adjustment in the first direction.

[0010] Preferably, the sliding connector comprises a first sliding groove and a second sliding groove arranged in different directions, the sliding support is installed in the first sliding groove and can slide relative to the first sliding groove, and the ball head of the third ball head connector is installed in the second sliding groove and can slide in the second sliding groove. In this preferred technical solution, the movement of the third ball head connector is better transmitted to the lighting unit through the sliding between the sliding support and the first sliding groove and the sliding between the ball head of the third ball head connector and the second sliding groove, so as to realize the dimming of the lighting unit.

[0011] Further preferably, the sliding track of the first sliding groove and the sliding track of the second sliding groove are not in the same plane. Through this preferred technical solution, the movement of the third ball head connector can be better converted into the rotation of the sliding connector, thereby driving the rotation of the lighting unit.

[0012] Preferably, the sliding support comprises a sliding support plate and a reinforcing rib, the first sliding groove is provided with a first slot, and the sliding connector is installed on the sliding support so that the sliding support plate can slide in the first sliding groove and the reinforcing rib is located in the first slot. In this preferred technical solution, the cooperation precision between the sliding support plate and the sliding groove is higher, the reinforcing rib can improve the mechanical strength of the sliding support plate, the first slot can simplify the structure of the sliding groove, and the cooperation precision between the sliding support and the sliding connector can be further increased through the cooperation of the first slot and the reinforcing rib.

[0013] Further preferably, the inner wall of the first sliding groove opposite to the first slot is provided with an elastic supporting structure, and the elastic supporting structure is in elastic contact with the sliding support plate. Through this preferred technical solution, under the elastic force of the elastic supporting structure, the sliding connector and the sliding support are in close contact, the cooperation gap between the sliding connector and the sliding support is reduced, and the cooperation precision is improved.

[0014] Preferably, the first ball joint connector and the second ball joint connector are both ball screw assemblies, the ball screw assembly comprising a ball screw and a ball nut, the ball screw being connected with the support frame or the lamp body, and the ball nut being connected with the lighting unit; the ball nut of the second ball joint connector is connected with the lighting unit, and the ball screw of the second ball joint connector is supported on the support frame or the lamp body and can move relative to the support frame or the lamp body, so that the lighting unit can be rotated to realize dimming in the second direction; the third ball joint connector is a ball adjusting screw, the ball adjusting screw comprising a screw ball head and an adjusting screw, the sliding connector comprising a first sliding groove and a second sliding groove, the second sliding groove having a second notch, the screw ball head being installed in the second sliding groove so that the screw ball head can slide in the second sliding groove, and the adjusting screw passing through the second notch. Through this preferred technical solution, precise fitting between the screw ball head and the second sliding groove can be formed, and the adjusting screw can move in the second notch relative to the sliding connector, improving the activity of the connection between the third ball joint connector and the sliding connector.

[0015] Preferably, the first direction is the up-down direction, and the second direction is the left-right direction; the line connecting the ball centers of the ball heads of the first ball joint connector and the second ball joint connector extends along the second direction, and neither the sliding direction of the sliding connector on the sliding support nor the sliding direction of the third ball joint connector relative to the sliding connector is in the second direction. In this preferred technical solution, dimming is performed in the up-down direction and the left-right direction respectively, which is more convenient. The sliding directions of the sliding connector relative to the sliding support and the third ball joint connector, which are different from the second direction, facilitate dimming in the first direction.

[0016] Further preferably, the sliding support is inclined to the horizontal plane in the front-rear vertical plane, and the ball centers of the ball heads of the first ball joint connector, the second ball joint connector and the third ball joint connector are located in the same horizontal plane. Through this preferred technical solution, the first ball joint connector, the second ball joint connector and the third ball joint connector are arranged in the same horizontal plane, which is beneficial to the flattening of the dimming mechanism. The sliding support is inclined in the front-rear direction, which facilitates dimming in the up-down direction.

[0017] Preferably, the first and second ball joint connectors are ball screw assemblies, each including a ball screw fixed on the support frame or the lamp body and a ball nut fixed on the lighting unit; and the third ball joint connector is a ball adjusting screw including a screw ball head and an adjusting screw, and the sliding connector includes a first sliding groove and a second sliding groove with a second notch, the screw ball head being installed in the second sliding groove so as to slide in the second sliding groove, and the adjusting screw passing through the second notch. In this preferred technical solution, the ball screws of the first and second ball joint connectors are fixed on the support frame or the lamp body, so that the first and second ball joint connectors cannot be adjusted in the direction of the line connecting the ball centers of the first and second ball joint connectors, but the connection structure is relatively simple and the manufacturing cost is relatively low. The screw ball head of the third ball joint connector and the second sliding groove can be precisely matched, and the adjusting screw can move in the second notch relative to the sliding connector, so as to improve the activity of the connection between the third ball joint connector and the sliding connector.

[0018] The second aspect of the present application provides a vehicle lamp module including the light adjusting mechanism and the lighting unit provided in the first aspect of the present application.

[0019] Preferably, the lighting unit includes a heat dissipation member, and the sliding support is integrally formed on the heat dissipation member. In this preferred technical solution, the sliding support and the heat dissipation member are integrally formed, which simplifies the structure of the light adjusting mechanism and facilitates the light adjustment of the lighting unit.

[0020] The third aspect of the present application provides a vehicle lamp including the vehicle lamp module provided in the second aspect of the present application.

[0021] The fourth aspect of the present application provides a vehicle including the vehicle lamp provided in the third aspect of the present application.

[0022] By the technical scheme, the light adjusting mechanism converts the front and back movement of the third ball head connecting piece into the rotation of the lighting unit to realize the light adjustment in the first direction. Since the light adjusting mechanism does not need to arrange the third ball head connecting piece on the side of the first ball head connecting piece in the first direction, the size of the lighting unit in the first direction can be reduced, and the miniaturization and flattening of the lighting unit in the first direction are facilitated. The movement conversion between the third ball head connecting piece and the lighting unit is realized by the sliding connecting piece, the distance between the movement direction of the third ball head connecting piece and the line connecting the ball center of the first ball head connecting piece and the second ball head connecting piece can be increased, and thus the light adjusting torque and the light adjusting precision of the third ball head connecting piece are increased. The sliding bracket arranged on the lighting unit has a simple structure, and the manufacturing of the lighting unit is facilitated. The movement of the ball screw of the second ball head connecting piece relative to the support frame or the lamp body can drive the lighting unit to rotate, and thus the light adjustment in the second direction is realized. The vehicle lamp module has a simple structure, occupies a small space, and has higher light adjusting precision. The vehicle lamp and the vehicle also have the above advantages.

[0023] Other advantages of the present application and technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a light shape diagram in a standard position;

[0025] Figure 2 is a light shape up and down direction adjustment schematic diagram;

[0026] Figure 3 is a light shape left and right direction adjustment schematic diagram;

[0027] Figure 4 is a structure schematic diagram of one embodiment of the light adjusting mechanism of the present application;

[0028] Figure 5 is a structure schematic diagram of one embodiment of the light adjusting mechanism of the present application (without ball screw);

[0029] Figure 6 is a rear view of Figure 5 ;

[0030] Figure 7 is an exploded view of Figure 5 ;

[0031] Figure 8 is a structure schematic diagram of the cooperation state of the sliding connecting piece and the sliding bracket in one embodiment of the light adjusting mechanism of the present application;

[0032] Figure 9 is a bottom view of Figure 8 ;

[0033] Figure 10 is a rear view of Figure 8 ;

[0034] Figure 11 is an A-A sectional view of Figure 10 ;

[0035] Figure 12 is a side view of Figure 8 ;

[0036] Figure 13 is a top view of Figure 8 ;

[0037] Figure 14 is a B-B sectional view of Figure 13 ;

[0038] Figure 15 is a schematic view of a sliding connector structure in an embodiment of the light adjusting mechanism of the present application;

[0039] Figure 16 is a perspective view from another angle of Figure 15 ;

[0040] Figure 17 is a perspective view from yet another angle of Figure 15 .

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 1a first ball joint connector 1b second ball joint connector

[0043] 1c third ball joint connector 2 lighting unit

[0044] 4 sliding bracket

[0045] 41 sliding bracket plate 42 reinforcing rib

[0046] 6 sliding connector 61 first sliding groove

[0047] 611 first notch 612 elastic support structure

[0048] 62 second sliding groove 621 second notch DETAILED DESCRIPTION

[0049] In the present application, the orientation words such as "front, back, upper, lower, left, right" used without the opposite description indicate the orientation or position relationship based on the normal installation of the vehicle light of the present application on the vehicle. Among them, the direction indicated by the orientation word "front" is the normal driving direction of the vehicle. The description of the orientation or position relationship of the light adjusting mechanism and the vehicle light module and their parts of the present application is consistent with the installation orientation in actual use. It should be noted that the use of orientation words is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0050] The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, therefore, the features limited by "first", "second", "third" can be explicitly or implicitly include one or more of the features.

[0051] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "connection" should be understood broadly. For example, the term "connection" can be fixed connection, can also be detachable connection, or integral connection; can be direct connection, can also be indirect connection through intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] The specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings, and it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and the protection scope of the present application is not limited to the specific embodiments described below.

[0053] The light adjusting mechanism of the present application is installed between the lighting unit 2 and the support frame or the lamp body, and is used to adjust the lighting unit 2.

[0054] An embodiment of the light adjusting mechanism of the present application, as shown in Figures 4 to 7 The first ball joint connector 1a is connected with the lighting unit 2 at one end and connected with the support frame or the lamp body at the other end. The first ball joint connector 1a has a rotating structure, so that the lighting unit 2 can rotate relative to the support frame or the lamp body around the rotating structure. The connection position of the support frame or the lamp body on the first ball joint connector 1a can be relatively fixed, that is, the length of the first ball joint connector 1a between the lighting unit 2 and the support frame or the lamp body cannot be adjusted.

[0055] The second ball joint 1b is connected with the lighting unit 2 at one end and connected with the support frame or the lamp body at the other end. The second ball joint 1b is also provided with a rotating structure, so that the lighting unit 2 can rotate relative to the support frame or the lamp body around the rotating structure. The second ball joint 1b can be fixedly connected with the support frame or the lamp body, so that the length of the second ball joint 1b between the lighting unit 2 and the support frame or the lamp body remains unchanged. The second ball joint 1b can also be connected with the support frame or the lamp body through an adjusting structure, such as a threaded structure, so that the connection position of the support frame or the lamp body connected on the second ball joint 1b can be moved. In this way, by adjusting the second ball joint 1b, the lighting unit 2 can be driven to rotate in the second direction relative to the support frame or the lamp body, thereby realizing the dimming in the second direction.

[0056] The lighting unit 2 is provided with a sliding support 4, and a sliding connecting piece 6 is installed on the sliding support 4 and can slide relative to the sliding support 4. One end of the third ball joint 1c is slidingly connected with the sliding connecting piece 6, and the other end is supported on the support frame or the lamp body. The third ball joint 1c is connected with the support frame or the lamp body through an adjusting structure, such as a threaded structure, so that the connection position of the support frame or the lamp body connected on the third ball joint 1c can be moved. In this way, by adjusting the third ball joint 1c, the sliding connecting piece 6 can be driven to move, which can be the sliding of the sliding connecting piece 6 relative to the sliding support 4, or can include the rotation of the sliding connecting piece 6 relative to the third ball joint 1c. The movement of the sliding connecting piece 6 drives the sliding support 4 and the lighting unit 2 connected with the sliding support 4 to rotate in the first direction, thereby realizing the dimming in the first direction.

[0057] It should be noted that the first direction described in the present specification refers to the rotation direction of the lighting unit 2 caused by adjusting the third ball joint 1c. The specific direction is determined by the structure of the dimming mechanism, which can be the up-down direction, the left-right direction, or any other direction.

[0058] In some embodiments of the dimming mechanism of the present application, such as Figures 4 to 7As shown, the sliding connector 6 comprises a first sliding groove 61 and a second sliding groove 62, the extending directions of the first sliding groove 61 and the second sliding groove 62 are different, and both can have a component in the front-rear direction. The shape of the first sliding groove 61 is adapted to the sliding bracket 4, so that the sliding connector 6 can be installed on the sliding bracket 4 through the first sliding groove 61, and the sliding connector 6 can slide on the sliding bracket 4. The inner surface of the second sliding groove 62 is shaped by the profile of the ball head of the third ball head connector 1c swept in a set direction, which can be a straight line or an arc. The provision of the second sliding groove 62 can also reduce the stress borne by the ball head of the third ball head connector 1c during dimming. The third ball head connector 1c can be installed in the second sliding groove 62 through the cooperation of its ball head with the second sliding groove 62, and can slide in the extending direction of the second sliding groove 62 in the second sliding groove 62. At the same time, the ball head of the third ball head connector 1c can also rotate in the second sliding groove 62. When adjusting the third ball head connector 1c, the third ball head connector 1c moves in a fixed direction, and the movement and rotation of the sliding connector 6 are driven by the cooperation of the ball head of the third ball head connector 1c with the second sliding groove 62, and the movement and rotation of the sliding connector 6 can drive the rotation of the lighting unit 2 through the cooperation of the first sliding groove 61 with the sliding bracket 4, thereby realizing the dimming of the lighting unit 2 in the first direction. Generally, in the cross section of the cooperation structure of the first sliding groove 61 and the sliding bracket 4, the sliding connector 6 and the sliding bracket 4 are tightly cooperated in the first direction, and have a cooperation gap in the direction perpendicular to the first direction, so as to improve the activity of the sliding connector 6 and reduce the stress borne by the ball head of the third ball head connector 1c during dimming while ensuring the dimming accuracy in the first direction.

[0059] In some embodiments of the dimming mechanism of the present application, as shown in Figures 4 to 17 The sliding trajectory of the first sliding groove 61 on the sliding connector 6 and the sliding trajectory of the second sliding groove 62 are not in the same plane, so that the rotation of the sliding connector 6 is more easily driven when the third ball head connector 1c moves relative to the support frame or the lamp body.

[0060] In some embodiments of the dimming mechanism of the present application, as shown in Figures 4 to 17As shown, the sliding support 4 comprises a sliding support plate 41 and a reinforcing rib 42 arranged on one side of the sliding support plate 41. The reinforcing rib 42 effectively improves the mechanical strength of the sliding support 4 without increasing the weight of the sliding support 4. Generally, the reinforcing rib 42 is arranged on the lower side of the sliding support plate 41 and extends along the length direction of the sliding support plate 41, i.e. the front-rear direction. Correspondingly, one side of the first sliding groove 61 is provided with a first notch 611. When the sliding connecting piece 6 is mounted on the sliding support 4, the reinforcing rib 42 is located in the first notch 611, which improves the fitting precision between the sliding connecting piece 6 and the sliding support 4 and increases the stability of the sliding connecting piece 6 sliding on the sliding support 4.

[0061] As a specific embodiment of the light adjusting mechanism of the present application, as shown in Figures 8-17 As shown, the inner wall of the side opposite to the first notch 611 of the first sliding groove 61 is provided with an elastic supporting structure 612. The elastic supporting structure 612 is an elastic structure fixed on one side of the inner wall of the first sliding groove 61. When the sliding connecting piece 6 is mounted on the sliding support 4, the elastic supporting structure 612 is compressed to deform towards the inner wall of the first sliding groove 61, and the reverse force generated thereby can act on the sliding support 4 to make the side of the sliding support 4 away from the elastic supporting structure 612 tightly contact the inner wall of the first sliding groove 61, thereby improving the stability of the sliding connecting piece 6 sliding on the sliding support 4. The elastic supporting structure 612 can be a pair of arc-shaped elastic sheets extending along the sliding track direction of the first sliding groove 61. Specifically, one side of the elastic supporting structure 612 is fixed on the inner wall of the first sliding groove 61, and the other side is suspended in the first sliding groove 61. The middle part of the elastic supporting structure 612 is curved to form a curved surface structure with elasticity. When the sliding support plate 41 is inserted into the first sliding groove 61, the curved surface structure in the middle part of the elastic supporting structure 612 is pressed on the sliding support plate 41 under the action of the elasticity, so that one side of the sliding support plate 41 is in elastic contact with the elastic supporting structure 612, and the other side tightly contacts the inner wall of the first sliding groove 61. In this way, the stability of the connection between the sliding connecting piece 6 and the sliding support 4 is improved, and the free sliding of the sliding connecting piece 6 on the sliding support 4 is not affected.

[0062] In some embodiments of the light adjusting mechanism of the present application, as Figure 4As shown, the first ball joint connector 1a and the second ball joint connector 1b are both ball screw assemblies, which include a ball screw and a ball nut, the ball screw is connected with the ball nut, and the ball head of the ball screw can rotate in the ball nut. The ball screw is connected with the support frame or the lamp body, and the ball nut is connected with the lighting unit 2, so that the lighting unit 2 can rotate relative to the support frame or the lamp body. The ball screw of the second ball joint connector 1b is threadedly connected with the screw hole provided on the support frame or the lamp body, and when the ball screw of the second ball joint connector 1b is adjusted, the ball screw of the second ball joint connector 1b can move relative to the support frame or the lamp body, driving the lighting unit 2 to rotate in the second direction with the ball center of the ball head of the first ball joint connector 1a as the center. In this way, adjusting the ball screw of the second ball joint connector 1b can adjust the rotation angle of the lighting unit 2 in the second direction, forming dimming in the second direction. Similarly, the second direction refers to the rotation direction of the lighting unit 2 caused by adjusting the second ball joint connector 1b, and the specific direction is determined by the structure of the dimming mechanism. The second direction is a direction that is at an angle with the first direction and is not in the same straight line, which can be the up-down direction, the left-right direction, or any other direction.

[0063] The third ball joint connector 1c is a ball head adjusting screw, and the ball head adjusting screw includes a screw ball head and an adjusting screw. One side of the second sliding groove 62 is provided with a second slot 621. The adjusting ball head is installed in the second sliding groove 62, and the adjusting screw of the third ball joint connector 1c passes out of the second slot 621, so that the screw ball head can slide in the second sliding groove 62, and the third ball joint connector 1c and the sliding connector 6 can form relative rotation. Adjusting the adjusting screw can form a pushing force on the sliding connector 6 outside the line between the ball center of the first ball joint connector 1a and the ball center of the second ball joint connector 1b, so that the sliding connector 6 produces translation and rotation movement, thereby adjusting the rotation angle of the lighting unit 2 in the first direction, forming dimming in the first direction.

[0064] It should be noted that in the present embodiment, when the ball screw of the second ball joint 1b is adjusted to perform dimming in the second direction, the sliding bracket 4 arranged on the lighting unit 2 will also form a rotation in the second direction, and the sliding joint 6 will move along with the sliding bracket 4. The screw ball of the third ball joint 1c is installed in the second sliding groove 62, and will form a stress between the second sliding groove 62 and the screw ball, so as to drive the sliding joint 6 to slide on the sliding bracket 4, and form a small deflection of the lighting unit 2 in the first direction. By setting a reasonable extension direction of the second sliding groove 62, i.e. the above-mentioned setting direction, such as setting the extension direction of the second sliding groove 62 as the same direction of the movement track of the screw ball of the third ball joint 1c relative to the sliding joint 6 in the case that the screw ball is not stressed when dimming in the second direction, the stress formed on the third ball joint 1c by dimming in the second direction can be avoided. However, the extension direction is difficult to guarantee in the actual manufacturing process, and the manufacturing process is also very complex. Generally, when the first direction is the up-down direction and the second direction is the left-right direction, the extension direction of the second sliding groove 62 can be set as a straight line direction from the left rear to the right front, or a straight line direction from the left rear up to the right front down; in this way, the manufacturing process can be simplified, although the lighting light shape will be deflected in the first direction when dimming in the second direction, and this influence can be reduced by performing dimming in the second direction first and then performing dimming in the first direction. Preferably, in the initial design state of the dimming mechanism, i.e. assuming that there is no manufacturing tolerance and assembly tolerance, and the lighting unit does not need to be dimmed, the ball center of the first ball joint 1a, the ball center of the second ball joint 1b, and the ball center of the third ball joint 1c are arranged in the same horizontal plane, and the extension direction of the second sliding groove 62 is set as a straight line direction perpendicular to the line connecting the ball center of the first ball joint 1a and the ball center of the third ball joint 1c, so that the movement track of the screw ball of the third ball joint 1c relative to the sliding joint 6 is closer to the movement track of the screw ball of the third ball joint 1c relative to the sliding joint 6 in the case that the screw ball is not stressed when dimming in the second direction, and the stress formed on the third ball joint 1c by dimming in the second direction is greatly reduced.

[0065] In some embodiments of the light adjusting mechanism of the present application, the first direction is the up-down direction, and the second direction is the left-right direction. That is, the ball center of the first ball joint 1a and the ball center of the second ball joint 1b are on the same horizontal straight line in the left-right direction, so that adjusting the second ball joint 1b can drive the lighting unit 2 to rotate relative to the ball center of the first ball joint 1a in the left-right direction, forming the light adjustment in the left-right direction. The sliding direction of the sliding joint 6 on the sliding support 4 and the sliding direction of the third ball joint 1c relative to the sliding joint 6 are different, and neither of them is on the line connecting the ball center of the first ball joint 1a and the ball center of the second ball joint 1b. When adjusting the third ball joint 1c, the third ball joint 1c can move linearly in a direction different from the extending direction of the second sliding groove 62, so that the ball of the third ball joint 1c slides in the second sliding groove 62, and drives the sliding joint 6 to move in a direction different from the adjusting direction of the third ball joint 1c. Since the sliding joint 6 is installed on the sliding support 4, and the sliding support 4 can slide in the first sliding groove 61, the movement of the sliding joint 6 can form the sliding of the sliding support 4 in the first sliding groove 61, and the sliding direction of the sliding joint 6 on the sliding support 4 and the sliding direction of the third ball joint 1c relative to the sliding joint 6 are both not on the line connecting the ball center of the first ball joint 1a and the ball center of the second ball joint 1b, so that the movement of the sliding joint 6 can form a pushing force on the lighting unit 2, which is outside the line connecting the ball center of the first ball joint 1a and the ball center of the second ball joint 1b, and drives the lighting unit 2 to rotate around the line connecting the ball center of the first ball joint 1a and the ball center of the second ball joint 1b, that is, to rotate in the up-down direction, thereby forming the light adjustment in the up-down direction.

[0066] As a specific embodiment of the light adjusting mechanism of the present application, as Figures 8-17As shown, the sliding support 4 is arranged to be inclined to the horizontal plane in the front-rear vertical plane. Meanwhile, the ball center of the ball head of the first ball head connecting piece 1a, the ball center of the ball head of the second ball head connecting piece 1b and the ball center of the ball head of the third ball head connecting piece 1c are arranged in the same horizontal plane. Specifically, the sliding support 4 can be arranged to be inclined downward from front to back, at this time, adjusting the third ball head connecting piece 1c can make the third ball head connecting piece 1c move forward and backward relative to the support frame or the lamp body, thereby pushing the forward and backward movement of the sliding connecting piece 6. When the sliding connecting piece 6 slides forward relative to the sliding support 4, it can drive the sliding support 4 to rotate downward. The sliding support 4 is located behind the line connecting the ball center of the ball head of the first ball head connecting piece 1a and the ball center of the ball head of the second ball head connecting piece 1b, and the optical element generating the illumination light shape is located in front of the line connecting the ball center of the ball head of the first ball head connecting piece 1a and the ball center of the ball head of the second ball head connecting piece 1b. The downward rotation of the sliding support 4 makes the illumination light shape generated by the illumination unit 2 upwardly offset, forming upward dimming. Meanwhile, when the sliding support 4 rotates downward, it also drives the sliding connecting piece 6 installed on the sliding support 4 to rotate downward, forming the relative rotation between the sliding connecting piece 6 and the third ball head connecting piece 1c.

[0067] In some embodiments of the light adjusting mechanism of the present application, the first ball joint connector la and the second ball joint connector 1b are both ball screw assemblies, which include a ball screw and a ball nut. The ball screws of the first ball joint connector la and the second ball joint connector 1b are fixed at different positions on the support frame or the lamp body in the left-right direction, and the ball nuts are fixed on the lighting unit 2 at positions corresponding to the ball screws. Therefore, the lighting unit 2 in this embodiment is fixed in the left-right direction and cannot be adjusted in the left-right direction. However, the connection structure of the ball screw and the support frame or the lamp body is relatively simple, and the manufacturing cost is also relatively low, so it can be applied to some lighting modules whose upper boundary of the lighting light shape is horizontal, such as auxiliary low beam modules, corner light lighting modules, and curved road lighting modules.

[0068] One embodiment of the vehicle lamp module of the present application includes a lighting unit 2 and the light adjusting mechanism of any embodiment of the present application. Through the light adjusting mechanism of the present application, the lighting unit 2 can be driven to rotate in the first direction and the second direction, thereby achieving light adjustment of the lighting unit 2 in different directions.

[0069] As a specific embodiment of the vehicle lamp module of the present application, the lighting unit 2 is provided with a heat dissipation member, and the sliding bracket 4 is integrally formed on the heat dissipation member. The sliding bracket 4 is integrally formed with the heat dissipation member, which simplifies the structure of the light adjusting mechanism and improves the accuracy and stability of the light adjustment. Moreover, since the sliding bracket 4 has a simple structure, the heat dissipation member is also relatively simple to manufacture, thereby better controlling the manufacturing cost of the vehicle lamp module.

[0070] In conclusion, the light adjusting mechanism of the present application can realize the force transmission between the third ball joint connector 1c and the lighting unit 2 through the sliding connector 6, and can improve the torque for driving the lighting unit 2 to rotate in the first direction through the torque transmission of the sliding connector 6 when the distance between the adjusting direction of the third ball joint connector 1c and the line connecting the ball centers of the first ball joint connector 1a and the second ball joint connector 1b is small, thereby improving the light adjusting precision. Therefore, the present application can not require the distance between the third ball joint connector 1c and the first ball joint connector 1a or the second ball joint connector 1b, and can be more freely arranged, and can better adapt to the trend of miniaturization and flattening of the vehicle lamp module. The sliding connector 6 can realize the conversion between the movement of the third ball joint connector 1c and the rotation of the lighting unit 2, and has high conversion precision, and can improve the light adjusting precision of the lighting unit 2. In addition, the sliding support 4 has a simple structure, and the connecting part of the sliding support 4 and the lighting unit 2 has a simple structure after being connected, and can be integrally formed.

[0071] In the preferred embodiment of the light adjusting mechanism of the present application, the first sliding groove 61 and the second sliding groove 62 can improve the activity freedom of the sliding connector 6, facilitate the sliding and rotation of the sliding connector 6, and reduce the stress on the third ball joint connector 1c during light adjusting. The sliding tracks of the first sliding groove 61 and the second sliding groove 62 are not in the same plane, which can convert the torque for driving the lighting unit 2 to rotate by the third ball joint connector 1c into the torque for driving the sliding connector 6 to rotate by the third ball joint connector 1c and the torque for driving the lighting unit 2 to rotate by the sliding connector 6, and further improve the driving effect and the light adjusting precision. The reinforcing rib 42, the first slot 611 and the elastic supporting structure 612 can reduce the fitting gap between the sliding connector 6 and the sliding support 4 in the second direction, improve the fitting precision of the sliding connector 6 and the sliding support 4, and improve the stability and adjusting precision of the light shape formed by the lighting unit 2. The ball centers of the first ball joint connector 1a, the second ball joint connector 1b and the third ball joint connector 1c are arranged in the same horizontal plane, so that the thickness of the light adjusting mechanism of the present application in the up-down direction can be smaller, and can be more suitable for the flat vehicle lamp structure.

[0072] In the vehicle lamp module of the present application, the light adjusting mechanism of any embodiment of the present application is used, and has the advantages of the light adjusting mechanism of the corresponding embodiment. The sliding support 4 and the heat dissipation member of the vehicle lamp module are integrally formed, which simplifies the structure of the light adjusting mechanism, and maintains the convenience of manufacturing the heat dissipation member.

[0073] The vehicle lamp of the present application uses the vehicle lamp module of any embodiment of the present application. Therefore, it also has the above advantages.

[0074] The vehicle of the present application, using the vehicle lamp of any embodiment of the present application, also has the above advantages.

[0075] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the specific details in the above-described embodiments. Various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application.

[0076] In addition, it should be noted that each specific technical feature described in the above-described specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations.

[0077] In addition, various different embodiments of the present application can also be combined in any appropriate manner, as long as it does not deviate from the idea of the present application, and it should also be considered as disclosed by the present application.

Claims

1. A dimming mechanism for dimming a lighting unit (2), characterized in that The first ball joint connector (1a), the second ball joint connector (1b), the third ball joint connector (1c) and the sliding connector (6) are included. One end of the first ball joint connector (1a) and the second ball joint connector (1b) is connected with the lighting unit (2), and the other end is connected with a support frame or a lamp body. The sliding support (4) is arranged on the lighting unit (2), the sliding connector (6) is in sliding connection with the sliding support (4), one end of the third ball joint connector (1c) is in sliding connection with the sliding connector (6), and the other end is supported on the support frame or the lamp body. The third ball joint connector (1c) can move relative to the support frame or the lamp body, so as to drive the sliding connector (6) to move, and the sliding support (4) and the lighting unit (2) connected with the sliding support (4) can be rotated through the sliding connector (6) to realize light adjustment in the first direction. The sliding connector (6) includes first and second sliding grooves (61) and (62) arranged in different directions, the sliding support (4) is installed in the first sliding groove (61) and can slide relative to the first sliding groove (61), and the ball head of the third ball joint connector (1c) is installed in the second sliding groove (62) and can slide in the second sliding groove (62).

2. The light adjusting mechanism according to claim 1, wherein The sliding track of the first sliding groove (61) and the sliding track of the second sliding groove (62) are not in the same plane.

3. The light adjusting mechanism according to claim 1, wherein The sliding support (4) includes a sliding support plate (41) and a reinforcing rib (42), the first sliding groove (61) has a first slot (611), and the sliding connector (6) is installed on the sliding support (4) so that the sliding support plate (41) can slide in the first sliding groove (61) and the reinforcing rib (42) is located in the first slot (611).

4. The light adjusting mechanism according to claim 3, wherein The inner wall of the side opposite to the first slot (611) of the first sliding groove (61) is provided with an elastic supporting structure (612), and the elastic supporting structure (612) is in elastic contact with the sliding support plate (41).

5. The light adjusting mechanism according to any one of claims 1 to 4, characterized in that, The first ball joint connector (1a) and the second ball joint connector (1b) are both ball screw assemblies, the ball screw assembly comprises a ball screw and a ball nut, the ball screw is connected with the support frame or the lamp body, and the ball nut is connected with the lighting unit (2); the ball nut of the second ball joint connector (1b) is connected with the lighting unit (2), the ball screw of the second ball joint connector (1b) is supported on the support frame or the lamp body and can move relative to the support frame or the lamp body, so that the lighting unit (2) can be rotated to realize dimming in the second direction; the third ball joint connector (1c) is a ball adjusting screw, the ball adjusting screw comprises a screw ball head and an adjusting screw, the sliding connector (6) comprises a first sliding groove (61) and a second sliding groove (62), the second sliding groove (62) is provided with a second slot (621), the screw ball head is installed in the second sliding groove (62), so that the screw ball head can slide in the second sliding groove (62), and the adjusting screw passes through the second slot (621).

6. The light adjusting mechanism according to claim 5, wherein The first direction is the up-down direction, and the second direction is the left-right direction; the line connecting the ball centers of the first ball joint connector (1a) and the second ball joint connector (1b) extends along the second direction, and the sliding direction of the sliding connector (6) on the sliding support (4) and the sliding direction of the third ball joint connector (1c) relative to the sliding connector (6) are both outside the line connecting the ball centers of the first ball joint connector (1a) and the second ball joint connector (1b).

7. The light adjusting mechanism according to claim 6, wherein The sliding support (4) is arranged obliquely to the horizontal plane in the front-rear vertical plane, and the ball centers of the first ball joint connector (1a), the second ball joint connector (1b) and the third ball joint connector (1c) are located in the same horizontal plane.

8. The light adjusting mechanism according to any one of claims 1 to 4, characterized by, The first ball joint connector (1a) and the second ball joint connector (1b) are both ball screw assemblies, the ball screw assembly comprises a ball screw and a ball nut, the ball screw is fixed on the support frame or the lamp body, and the ball nut is fixed on the lighting unit (2); the third ball joint connector (1c) is a ball adjusting screw, the ball adjusting screw comprises a screw ball head and an adjusting screw, the sliding connector (6) comprises a first sliding groove (61) and a second sliding groove (62), the second sliding groove (62) is provided with a second slot (621), the screw ball head is installed in the second sliding groove (62), so that the screw ball head can slide in the second sliding groove (62), and the adjusting screw passes through the second slot (621).

9. A vehicle lamp module, characterized in that The lighting unit (2) comprises a heat dissipation member, and the sliding support (4) is integrally formed on the heat dissipation member.

10. The vehicle lamp module of claim 9, wherein, The vehicle lamp module comprises the dimming mechanism and the lighting unit (2) according to any one of claims 1 to 8.

11. A vehicle lamp characterized by The lighting unit (2) comprises a heat dissipation member, and the sliding support (4) is integrally formed on the heat dissipation member. The vehicle lamp module comprises the dimming mechanism and the lighting unit (2) according to any one of claims 1 to 8.

12. A vehicle characterized by comprising: The vehicle lamp according to claim 11 is included. The vehicle lamp according to claim 11 is included.

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