Light adjusting mechanism, vehicle lamp and vehicle
By combining the design of the adjustment bracket and the elastic rolling element, the synchronous adjustment of multiple light-emitting structures is achieved, which solves the problems of instability and accuracy of dimming of multiple light-emitting modules, ensuring the accurate beam illumination position of the vehicle lighting system and meeting regulatory requirements and road illumination perception requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIND ELECTRONICS APPLIANCE CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-12
AI Technical Summary
Existing technologies cannot guarantee the stability and accuracy of synchronous dimming of multiple light-emitting modules, resulting in vehicle lighting systems failing to meet regulatory requirements and road illumination perception requirements, especially when the illumination angle of the light-emitting modules shifts when the vehicle load changes.
The design employs a combination of a joint adjustment bracket and elastic rolling elements. Through the elastic rolling action within the slide groove, the synchronous adjustment of multiple light-emitting structures is achieved. The interference fit between the elastic rolling elements and the slide groove reduces the problems of increased friction and wobbling, ensuring the stability and accuracy of dimming.
It improves the synchronous dimming stability and dimming angle accuracy of multiple light-emitting structures, better meets regulatory requirements and road illumination perception requirements, and enables precise calibration of the illumination angle of the light-emitting structures when the vehicle load changes, thereby improving the overall performance of the vehicle lighting system.
Smart Images
Figure CN224352828U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive lighting equipment technology, and in particular to a dimming mechanism, automotive lights, and vehicles. Background Technology
[0002] In modern vehicle lighting systems, there are strict requirements for the dimming function of the headlight's light-emitting module. On the one hand, to ensure that the beam position of the light-emitting module meets regulatory standards, its rotation angle (e.g., rotation angle around the horizontal or vertical axis) needs to be adjusted. On the other hand, changes in vehicle load can cause changes in the vehicle's posture, leading to a shift in the high and low beam illumination angles. To obtain better lighting effects, the driver needs to adjust the motor settings or rely on the vehicle's automatic control logic to recalibrate the high and low beam illumination angles.
[0003] As the industry continues to develop, utilizing multiple light-emitting modules in synergy to achieve lighting functions has become a common trend. However, ensuring the stability and accuracy of synchronous dimming of multiple light-emitting modules to meet regulatory performance and road illumination sensing requirements remains a pressing challenge for the industry. Utility Model Content
[0004] This application provides a dimming mechanism, a vehicle lamp, and a vehicle that can drive multiple light-emitting structures to dim synchronously through a tuning bracket. When the tuning bracket drives multiple light-emitting structures to dim, it rolls in coordination with the lamp housing, thereby improving the stability of synchronous dimming of multiple light-emitting structures and the accuracy of the dimming angle.
[0005] In a first aspect, a dimming mechanism is provided for synchronously adjusting multiple light-emitting structures of a vehicle lamp. The dimming mechanism includes a linkage bracket and multiple dimming brackets distributed along a first direction.
[0006] One of the joint adjustment bracket and the lamp housing of the vehicle headlight is provided with a slide groove, and the other is connected to an elastic rolling element located in the slide groove, wherein the second direction is the width direction of the slide groove;
[0007] The light-emitting structures are arranged one-to-one on the dimming bracket. The dimming bracket has a first connection position and a second connection position spaced apart along the second direction. The dimming bracket is movably connected to the tuning bracket at the first connection position and movably connected to the lamp housing at the second connection position. The first direction, the second direction and the extension direction of the slide are perpendicular to each other.
[0008] If the joint adjustment bracket moves relative to the lamp housing along the extension direction of the slide groove, the elastic rolling element rolls within the slide groove.
[0009] Through the above technical solution, the dimming bracket is designed to be movably connected to the adjustment bracket at the first connection position and movably connected to the lamp housing at the second connection position. If the adjustment bracket moves relative to the lamp housing along the extension direction of the slide groove, the adjustment bracket can drive the dimming bracket to have both a displacement in the extension direction at the first connection position and a rotation relative to the adjustment bracket around a first direction, and to rotate relative to the lamp housing around the first direction at the second connection position, thereby realizing the rotational adjustment of the light-emitting structure on the dimming bracket around the first direction. Since multiple dimming brackets are movably connected to the adjustment bracket at the first connection position and movably connected to the lamp housing at the second connection position, the movement of the adjustment bracket relative to the lamp housing along the extension direction of the slide groove can realize the rotational adjustment of the light-emitting structure on multiple dimming brackets around the first direction, that is, to achieve synchronous adjustment of the light-emitting structure on multiple dimming brackets.
[0010] Furthermore, if the adjustment bracket moves along the extension direction of the slide groove, the elastic rolling element rolls within the slide groove, achieving a rolling fit between the elastic rolling element and the slide groove. The elastic rolling element's elasticity reduces the assembly error requirements between it and the slide groove, achieving an interference fit. The rolling of the elastic rolling element within the slide groove is driven by friction, avoiding the problems of increased friction, jamming, or large wobble caused by clearance issues in sliding fits. This improves the stability and accuracy of synchronous dimming of multiple light-emitting structures. With the stability of synchronous dimming of multiple light-emitting structures ensured, the beam illumination position of the vehicle lighting system can more accurately meet regulatory requirements and road illumination perception requirements. Simultaneously, when changes in vehicle load cause alterations in the vehicle's posture, it also allows for better recalibration of the illumination angle of the light-emitting structures, resulting in better lighting effects and improving the overall performance of the vehicle lighting system.
[0011] In conjunction with the first aspect, in some possible implementations, the dimming mechanism satisfies: h1 > h2; where h1 is the dimension of the elastic rolling element in the width direction of the groove, and h2 is the width of the groove.
[0012] Based on the above implementation method, the elastic rolling element can be in a compressed state in the width direction of the groove, so as to achieve an interference fit between the elastic rolling element and the groove, and the two inner sidewalls opposite to each other in the width direction of the groove are in contact.
[0013] In combination with the first aspect and the above implementation, in some possible implementations, the elastic rolling element includes at least two elastic rolling portions distributed along the width direction of the groove. The at least two elastic rolling elements include a first elastic rolling portion and a second elastic rolling portion that are adjacent along the width direction of the groove. The dimming mechanism satisfies: r1 + r2 > h3; where r1 is the radius of the first elastic rolling portion; r2 is the radius of the second elastic rolling portion; and h3 is the distance between the first elastic rolling portion and the second elastic rolling portion in the width direction of the groove.
[0014] Based on the above implementation method, the part where the first elastic rolling part and the second elastic rolling part come into contact can be in a compressed state, so as to achieve an interference fit between the first elastic rolling part and the second elastic rolling part. Relying on the action of friction, the first elastic rolling part and the second elastic rolling part can move synchronously.
[0015] Combining the first aspect and the above implementation methods, in some possible implementations, the elastic scrolling part includes:
[0016] Rolling element, the rolling element connects the adjustment bracket to another component in the lamp housing;
[0017] An elastic ring is fixedly fitted onto the rolling element.
[0018] Based on the above implementation method, the elastic ring can deform. When the elastic rolling element is located in the groove, the elastic ring is in a compressed state, realizing the interference fit between the elastic rolling element and the groove.
[0019] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the rolling element is a bearing, the inner ring of the bearing is fixedly connected to the adjustment bracket and the other one in the lamp housing, and the elastic ring is fixedly sleeved on the outer ring of the bearing.
[0020] Based on the above implementation method, the rolling element is a bearing, which can improve the smoothness of the rolling of the elastic rolling element in the groove.
[0021] In combination with the first aspect and the above implementation methods, in some possible implementation methods, a plurality of elastic rolling elements are provided in the slide groove and distributed along the extension direction of the slide groove.
[0022] Based on the above implementation method, multiple elastic rolling elements are set in a slide groove to increase the contact points between the elastic rolling elements and the slide groove, reduce the amount of swaying of the joint adjustment bracket relative to the lamp housing around the first direction, and improve the stability of the two when moving in the extension direction of the slide groove.
[0023] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, one of the joint adjustment bracket and the lamp housing is provided with multiple sliding grooves, the multiple sliding grooves extend in the same direction, and each sliding groove is provided with an elastic rolling element.
[0024] Based on the above implementation method, the joint adjustment bracket and the lamp housing are connected by multiple sliding grooves and elastic rolling elements, which increases the number of connection points between the joint adjustment bracket and the lamp housing and reduces the amount of sway of the joint adjustment bracket relative to the lamp housing in the extension direction of the sliding groove.
[0025] Combining the first aspect and the above implementation methods, in some possible implementations, the multiple slides include a first slide and a second slide.
[0026] The commissioning support has a first sidewall and a second sidewall that are distributed opposite to each other along a first direction. Both the first sidewall and the second sidewall extend along the extension direction of the slide groove. The first slide groove is located at the first sidewall of the commissioning support, and the second slide groove is located at the second sidewall of the commissioning support.
[0027] Based on the above implementation method, the first and second side walls of the joint adjustment bracket, which are relatively distributed along the first direction, are provided with sliding grooves and elastic rolling elements, which can reduce the amount of swaying of the joint adjustment bracket relative to the lamp housing around the extension direction of the sliding groove to a greater extent.
[0028] Combining the first aspect and the above implementation methods, in some possible implementations, the multiple slides may also include a third slide.
[0029] The commissioning support has a third sidewall connected between the first sidewall and the second sidewall, and the third slide is located at the third sidewall of the commissioning support.
[0030] Based on the above implementation method, the third slide is designed to be located on the third side wall of the joint adjustment bracket, so as to further reduce the amount of sway of the joint adjustment bracket relative to the lamp housing in the extension direction of the slide.
[0031] Combining the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the other of the joint adjustment bracket and the lamp housing is provided with a boss that extends into the slide groove, and the boss is connected to an elastic rolling element.
[0032] Based on the above implementation method, the connection between the joint adjustment bracket and the lamp housing can be constrained by the boss and the elastic rolling element, which helps to improve the connection reliability between the two.
[0033] In combination with the first aspect and the above-described implementation methods, some possible implementations include a first connector, which comprises a first ball head and a first ball head seat.
[0034] The first connection position is connected to one of the joint adjustment brackets with a first ball head, and the other is connected to a first ball head seat. The first ball head seat forms a first receiving cavity with a first opening. The first receiving cavity has a first notch at the first opening. The first notch penetrates the first ball head seat along a second direction. The first ball head is located inside the first ball head seat.
[0035] Based on the above implementation method, since the relative movement of the first ball head and the first ball head seat is more flexible, designing the first connector to include the first ball head and the first ball head seat is more conducive to improving the smoothness of the movement of the dimming bracket driven by the tuning bracket. The setting of the first notch can improve the rotational constraint of the first ball head seat on the first ball head.
[0036] In conjunction with the first aspect and the above-described implementation methods, some possible implementations may also include a second connector, which includes a second ball head and a second ball head seat.
[0037] The second connection position is connected to one of the lamp housings with a second ball head, and the other is connected to a second ball head seat. The second ball head seat forms a second receiving cavity with a second opening, and the second ball head is located inside the second ball head seat.
[0038] Based on the above implementation method, since the relative movement of the second ball head and the second ball head seat is more flexible, the design of the second connector including the second ball head and the second ball head seat is more conducive to improving the smoothness of the movement of the dimming bracket relative to the lamp housing.
[0039] In combination with the first aspect and the above implementation, in some possible implementations, the dimming bracket has two second connection positions along the second direction, the two second connection positions are located on the same side of the first connection position, the two second connection positions are spaced apart in the first direction, and the dimming bracket is movably connected to the lamp housing at each second connection position.
[0040] Based on the above implementation method, the connection stability of the dimming mechanism and the stability of the dimming bracket when moving relative to the lamp housing can be improved.
[0041] Combining the first aspect and the above implementation methods, in some possible implementation methods, along the second direction, the first connection position is closer to the groove than the second connection position.
[0042] Based on the above implementation method, when the adjustment bracket moves relative to the lamp housing along the extension direction of the slide, it can better drive the dimming bracket at the first connection position to have both the extension direction of movement displacement and the rotation relative to the adjustment bracket around the first direction, thereby improving the smoothness of the adjustment bracket driving the dimming bracket to move.
[0043] Combining the first aspect and the above implementation methods, in some possible implementation methods, the dimming bracket is provided with a through hole, and the light-emitting structure is provided with a through hole.
[0044] Based on the above implementation method, the light-emitting structure is perforated and installed on the dimming bracket, which can save the space occupied by the dimming mechanism and reduce the size of the vehicle headlight.
[0045] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the dimming mechanism further includes a driving component, which is fixed relative to the lamp housing and connected to the tuning bracket for driving the tuning bracket to move along the extension direction of the slide groove.
[0046] Based on the above implementation method, the dimming mechanism can be automatically adjusted by driving the adjustment bracket to move relative to the lamp housing along the extension direction of the slide groove through the driving component.
[0047] Secondly, a vehicle lamp is provided, including the aforementioned dimming mechanism, light-emitting structure, and lamp housing.
[0048] Thirdly, a vehicle is provided, including the aforementioned headlights. Attached Figure Description
[0049] Figure 1 This is a partial structural schematic diagram of a vehicle lamp provided in an embodiment of this application;
[0050] Figure 2 yes Figure 1 The diagram shown is a schematic representation of the main structure of the vehicle headlights;
[0051] Figure 3 yes Figure 1 The diagram shows the exploded structure of the vehicle headlights;
[0052] Figure 4 yes Figure 1 A schematic diagram of a partial structure of the vehicle headlights is shown;
[0053] Figure 5 yes Figure 4 A partially enlarged schematic diagram of the vehicle's headlights is shown;
[0054] Figure 6 yes Figure 4 The diagram shown is a schematic representation of the main structure of the vehicle headlights;
[0055] Figure 7 yes Figure 4 A schematic diagram of the headlights from another perspective is shown.
[0056] Figure 8 yes Figure 7 The diagram shows the exploded structure of the vehicle headlights.
[0057] Explanation of reference numerals in the attached figures:
[0058] 1. Vehicle lights;
[0059] 10. Dimming mechanism;
[0060] 11. Debugging bracket; 111. First side wall; 112. Second side wall; 113. Third side wall; 114. Boss;
[0061] 12. Elastic rolling element; 121. Elastic rolling portion; 121a. First elastic rolling portion; 121b. Second elastic rolling portion; 1211. Rolling element; 1212. Elastic ring;
[0062] 13. Dimming bracket; 131. First connection point; 132. Second connection point; 133. Through hole; 134. First support pillar; 135. Second support pillar; 136. Third support pillar; 137. Fourth support pillar;
[0063] 14. First connector; 141. First ball head; 142. First ball head seat; 1421. First receiving cavity; 1422. First opening; 1423. First notch;
[0064] 15. Second connector; 151. Second ball head; 152. Second ball head seat; 1521. Second receiving cavity; 1522. Second opening;
[0065] 16. Driving components;
[0066] 20. Light-emitting structure;
[0067] 30. Lamp housing; 31. Slide groove; 31a. First slide groove; 31b. Second slide groove; 31c. Third slide groove;
[0068] x, first direction; y, second direction; z, extension direction. Detailed Implementation
[0069] The technical solutions in this application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.
[0070] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0071] In modern vehicle lighting systems, there are strict requirements for the dimming function of the headlight's light-emitting module. On the one hand, to ensure that the beam position of the light-emitting module meets regulatory standards, its rotation angle (e.g., rotation angle around the horizontal or vertical axis) needs to be adjusted. On the other hand, changes in vehicle load can cause changes in the vehicle's posture, leading to a shift in the high and low beam illumination angles. To obtain better lighting effects, the driver needs to adjust the motor settings or rely on the vehicle's automatic control logic to recalibrate the high and low beam illumination angles.
[0072] As the industry continues to develop, utilizing multiple light-emitting modules in synergy to achieve lighting functions has become a common trend. However, ensuring the stability and accuracy of synchronous dimming of multiple light-emitting modules to meet regulatory performance and road illumination sensing requirements remains a pressing challenge for the industry.
[0073] In related technologies, a sliding adjustment bracket that engages with the lamp housing is used to drive multiple light-emitting modules, achieving synchronous dimming of multiple light-emitting modules. However, this method has the following drawbacks: if the clearance between the adjustment bracket and the lamp housing is small, the friction between the parts will increase, leading to jamming and causing the adjustment bracket to rotate, resulting in inaccurate dimming angles of the light-emitting modules; if the clearance between the adjustment bracket and the lamp housing is large, it will increase the amount of component movement, also causing the adjustment bracket to rotate, resulting in inaccurate dimming angles of the light-emitting modules and a lack of synchronization. In short, the impact of the clearance makes the sliding engagement method unable to solve the problem of dimming synchronization stability.
[0074] Based on this, see Figures 1 to 8 This application provides a dimming mechanism 10 for synchronously adjusting multiple light-emitting structures 20 of a vehicle headlight. The dimming mechanism 10 includes a co-adjustment bracket 11 and multiple dimming brackets 13 distributed along a first direction x.
[0075] One of the adjustment bracket 11 and the lamp housing 30 of the vehicle lamp is provided with a groove 31, and the other is connected to an elastic rolling element 12 located in the groove 31. Light-emitting structures 20 are correspondingly arranged on the dimming bracket 13. The dimming bracket 13 has a first connecting position 131 and a second connecting position 132 spaced apart along the second direction y. The dimming bracket 13 is movably connected to the adjustment bracket 11 at the first connecting position 131 and movably connected to the lamp housing 30 at the second connecting position 132. The first direction x, the second direction y, and the extension direction z of the groove 31 are all perpendicular to each other. If the adjustment bracket 11 moves relative to the lamp housing 30 along the extension direction z of the groove 31, the elastic rolling element 12 rolls within the groove 31.
[0076] The dimming bracket 13 is designed to be movably connected to the adjustment bracket 11 at the first connection position 131 and movably connected to the lamp housing 30 at the second connection position 132. If the adjustment bracket 11 moves relative to the lamp housing 30 along the extension direction z of the slide groove 31, the adjustment bracket 11 can drive the dimming bracket 13 to have both a displacement in the extension direction z at the first connection position 131 and a rotation relative to the adjustment bracket 11 around the first direction x, and to rotate relative to the lamp housing 30 around the first direction x at the second connection position 132, thereby realizing the rotational adjustment of the light-emitting structure 20 on the dimming bracket 13 around the first direction x. Since multiple dimming brackets 13 are movably connected to the adjustment bracket 11 at the first connection position 131 and movably connected to the lamp housing 30 at the second connection position 132, the movement of the adjustment bracket 11 relative to the lamp housing 30 along the extension direction z of the slide groove 31 can realize the rotational adjustment of the light-emitting structure 20 on multiple dimming brackets 13 around the first direction x.
[0077] Furthermore, if the adjustment bracket 11 moves along the extension direction z of the slide groove 31, the elastic rolling element 12 rolls within the slide groove 31, achieving a rolling fit between the elastic rolling element 12 and the slide groove 31. The elastic rolling element 12, being elastic, reduces the assembly error requirements between itself and the slide groove 31, achieving an interference fit. The rolling of the elastic rolling element 12 within the slide groove 31 is driven by friction, avoiding the problems of increased friction, jamming, or large wobbling caused by gaps in sliding fits. This improves the stability and accuracy of synchronous dimming of multiple light-emitting structures 20. With the stability of synchronous dimming of multiple light-emitting structures 20 guaranteed, the beam illumination position of the vehicle lighting system can more accurately meet regulatory requirements and road illumination perception requirements. Simultaneously, when changes in vehicle load cause changes in the vehicle's posture, the illumination angle of the light-emitting structure 20 can be better recalibrated, resulting in better lighting effects and improving the overall performance of the vehicle lighting system.
[0078] The dimming mechanism 10 satisfies: h1 > h2; where h1 is the dimension of the elastic rolling element 12 in the width direction of the groove 31; and h2 is the width of the groove 31. This allows the elastic rolling element 12 to be in a compressed state in the width direction of the groove 31, achieving an interference fit between the elastic rolling element 12 and the groove 31, with both inner sidewalls of the elastic rolling element 12 and the groove 31 in contact in the width direction.
[0079] The elastic rolling element 12 includes at least two elastic rolling portions 121 distributed along the width direction of the groove 31. Each elastic rolling element 12 includes a first elastic rolling portion 121a and a second elastic rolling portion 121b adjacent to each other along the width direction of the groove 31. The dimming mechanism 10 satisfies: r1 + r2 > h3; where r1 is the radius of the first elastic rolling portion 121a; r2 is the radius of the second elastic rolling portion 121b; and h3 is the distance between the first elastic rolling portion 121a and the second elastic rolling portion 121b in the width direction of the groove 31. This allows the contacting portions of the first elastic rolling portion 121a and the second elastic rolling portion 121b to be in a compressed state, achieving an interference fit between them. Through friction, the first elastic rolling portion 121a and the second elastic rolling portion 121b can move synchronously.
[0080] If the adjustment bracket 11 moves along the extension direction z of the slide groove 31, the elastic rolling element 12 will roll within the slide groove 31 under the action of friction, and two adjacent elastic rolling parts 121 will roll relative to each other under the action of friction. This achieves rolling engagement between the elastic rolling element 12 and the slide groove 31, avoiding the problems of increased friction, jamming, or large shaking caused by gaps in sliding engagement. This improves the stability and accuracy of synchronous dimming of multiple light-emitting structures 20. With the stability of synchronous dimming of multiple light-emitting structures 20 guaranteed, the beam illumination position of the vehicle lighting system can more accurately meet regulatory requirements and road illumination perception requirements. At the same time, when changes in vehicle load cause changes in the overall vehicle posture, the illumination angle of the light-emitting structure 20 can be better recalibrated, thereby obtaining better lighting effects and improving the overall performance of the vehicle lighting system.
[0081] It should be noted that as long as h1 > h2 and r1 + r2 > h3, the elastic rolling element 12 and the slide groove 31 can be rolled together, avoiding the problems of increased friction, jamming, or large wobbling caused by gaps in the sliding fit. This improves the stability of the dimming synchronization of multiple light-emitting structures 20 and the accuracy of the dimming angle. Of course, to improve the smoothness of the rolling of the elastic rolling element 12 in the slide groove 31, the difference between h1 and h2, and the difference between r1 + r2 and h3 can be reasonably limited; for example, 0 < h1 - h2 ≤ 10 mm; 0 < (r1 + r2) - h3 ≤ 5 mm; where h1 - h2 can be 2 mm, 4 mm, 6 mm, 8 mm, 10 mm, etc.; (r1 + r2) - h3 can be 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, etc.
[0082] The elastic rolling part 121 may be provided with a mounting hole, and the other of the coupling bracket 11 and the lamp housing 30 may be provided with a mounting shaft. The elastic rolling part 121 can be sleeved on the mounting shaft through the mounting hole. The distance h3 between the first elastic rolling part 121a and the second elastic rolling part 121b in the width direction of the groove 31 can be regarded as the distance between the axis of the mounting hole of the first elastic rolling part 121a and the axis of the mounting hole of the second elastic rolling part 121b. The position of the mounting hole is determined by the position of the mounting shaft. In this way, by designing the distance between two adjacent mounting shafts in the width direction of the groove 31, the distance h3 between the first elastic rolling part 121a and the second elastic rolling part 121b in the width direction of the groove 31 can be made less than r1+r2.
[0083] The elastic rolling part 121 may include a rolling element 1211 and an elastic ring 1212. The rolling element 1211 connects the coupling bracket 11 and the other of the lamp housing 30, and the elastic ring 1212 is fixedly sleeved on the rolling element 1211. The elastic ring 1212 is deformable. When the elastic rolling element 12 is located in the slide groove 31, the elastic ring 1212 is in a compressed state, realizing an interference fit between the elastic rolling element 12 and the slide groove 31.
[0084] In some embodiments, the rolling element 1211 can be a bearing, with the inner ring of the bearing fixedly connected to the connecting bracket 11 and the other of the lamp housing 30, and the elastic ring 1212 fixedly sleeved on the outer ring of the bearing to improve the smoothness of the elastic rolling element 12 rolling in the groove 31. In other embodiments, the rolling element 1211 can be a roller, etc.
[0085] In some embodiments, a plurality of elastic rolling elements 12 are provided in the slide groove 31 and distributed along the extension direction z of the slide groove 31. This increases the number of contact points between the elastic rolling elements 12 and the slide groove 31, reduces the amount of swaying of the coupling bracket 11 relative to the lamp housing 30 around the first direction x, and improves the stability of the two when moving in the extension direction z of the slide groove 31. For example, two, three, four, or other numbers of elastic rolling elements 12 are provided in the slide groove 31 and distributed along the extension direction z of the slide groove 31.
[0086] In some embodiments, one of the adjustment bracket 11 and the lamp housing 30 is provided with a plurality of sliding grooves 31, the extension direction z of the plurality of sliding grooves 31 being consistent, and each sliding groove 31 is provided with an elastic rolling element 12, thereby increasing the number of connection points between the adjustment bracket 11 and the lamp housing 30 and reducing the amount of swaying of the adjustment bracket 11 relative to the lamp housing 30 around the extension direction z of the sliding groove 31. Furthermore, in this embodiment, h1 > h2 and r1 + r2 > h3 are designed to facilitate the synchronous rolling of the elastic rolling elements 12 in each sliding groove 31, avoiding one in front of the other, and further reducing the amount of swaying of the adjustment bracket 11 relative to the lamp housing 30 around the second direction y.
[0087] In some embodiments, the plurality of slides 31 include a first slide 31a and a second slide 31b. The tuning bracket 11 has a first sidewall 111 and a second sidewall 112 that are relatively distributed along a first direction x. Both the first sidewall 111 and the second sidewall 112 extend along the extension direction z of the slide 31. The first slide 31a is located at the first sidewall 111 of the tuning bracket 11, and the second slide 31b is located at the second sidewall 112 of the tuning bracket 11. By designing that the tuning bracket 11 has slides 31 and elastic rolling elements 12 at the first sidewall 111 and the second sidewall 112 that are relatively distributed along the first direction x, the amount of swaying of the tuning bracket 11 relative to the lamp housing 30 around the extension direction z of the slide 31 can be reduced to a greater extent.
[0088] Furthermore, the plurality of slides 31 also include a third slide 31c. The tuning bracket 11 has a third sidewall 113 connected between the first sidewall 111 and the second sidewall 112. The third slide 31c is located at the third sidewall 113 of the tuning bracket 11, so as to further reduce the amount of sway of the tuning bracket 11 relative to the lamp housing 30 about the extension direction z of the slide 31.
[0089] The other of the adjustment bracket 11 and the lamp housing 30 is provided with a boss 114 that extends into the slide groove 31, and the boss 114 is connected to an elastic rolling element 12. In this way, the adjustment bracket 11 and the lamp housing 30 can be constrained by the boss 114 and the elastic rolling element 12, which helps to improve the connection reliability between the two.
[0090] It is understandable that one of the aforementioned joint adjustment bracket 11 and the lamp housing 30 of the vehicle lamp is provided with a groove 31, and the other is connected to an elastic rolling element 12 located in the groove 31. The joint adjustment bracket 11 can be provided with a groove 31 and the lamp housing 30 can be provided with an elastic rolling element 12, or the lamp housing 30 can be provided with a groove 31 and the joint adjustment bracket 11 can be provided with an elastic rolling element 12.
[0091] In this embodiment, the lamp housing 30 is provided with a sliding groove 31, while the adjustment bracket 11 is provided with an elastic rolling element 12. Since the structure of the adjustment bracket 11 is relatively more flexible than that of the lamp housing 30, the elastic rolling element 12 on the adjustment bracket 11 allows for easier assembly by assembling the adjustment bracket 11 and the elastic rolling element 12 together before assembling it with the lamp housing 30. Furthermore, the structural design of the adjustment bracket 11 is more flexible and facilitates the formation of the boss 114.
[0092] Along the second direction y, the first connecting position 131 is closer to the slide groove 31 than the second connecting position 132. This facilitates the smoothness of the movement of the dimming bracket 13 relative to the lamp housing 30 along the extension direction z of the slide groove 31, allowing the dimming bracket 13 to move in the extension direction z at the first connecting position 131 while also rotating relative to the dimming bracket 11 around the first direction x.
[0093] The dimming bracket 13 has two second connection positions 132 along the second direction y, located on the same side of the first connection position 131, and the two second connection positions 132 are spaced apart in the first direction x. The dimming bracket 13 is movably connected to the lamp housing 30 at each of the second connection positions 132, thereby improving the connection stability of the dimming mechanism 10 and the smoothness of the dimming bracket 13 when moving relative to the lamp housing 30.
[0094] The dimming bracket 13 is provided with a through hole 133, and the light-emitting structure 20 passes through the through hole 133. The light-emitting structure 20 passes through the through hole 133 and is installed on the dimming bracket 13. In this way, the space occupied by the dimming mechanism 10 can be saved and the size of the vehicle headlight can be reduced.
[0095] The dimming bracket 13 may include a first pillar 134, a second pillar 135, a third pillar 136 and a fourth pillar 137. The first pillar 134 and the third pillar 136 are arranged opposite to each other and spaced apart along the second direction y, and the second pillar 135 and the fourth pillar 137 are arranged opposite to each other and spaced apart along the first direction x. The first pillar 134, the second pillar 135, the third pillar 136 and the fourth pillar 137 form a through hole 133.
[0096] The first connecting position 131 can be located at the connection between the first pillar 134 and the second pillar 135, and one second connecting position 132 can be located at the connection between the third pillar 136 and the second pillar 135, and another second connecting position 132 can be located at the connection between the third pillar 136 and the fourth pillar 137. The first pillar 134 is closer to the tuning bracket 11 than the third pillar 136, so that the first pillar 134 is closer to the elastic rolling element 12 or the slide groove 31 on the tuning bracket 11 than the third pillar 136. This makes the first connecting position 131 closer to the slide groove 31 than the second connecting position 132 along the second direction y. This is beneficial for the tuning bracket 11 to move relative to the lamp housing 30 along the extension direction z of the slide groove 31, so that the dimming bracket 13 can have both the extension direction z displacement and the rotation relative to the tuning bracket 11 around the first direction x at the first connecting position 131, thereby improving the smoothness of the movement of the tuning bracket 11 driving the dimming bracket 13.
[0097] The first pillars 134 of the multiple dimming brackets 13 are located on the same side of the dimming mechanism 10 along the second direction y, and the third pillars 136 of the multiple dimming brackets 13 are located on the same side of the dimming mechanism 10 along the second direction y.
[0098] For two adjacent dimming brackets 13, the fourth pillar 137 of one dimming bracket 13 is arranged adjacent to the second pillar 135 of the other dimming bracket 13.
[0099] The dimming mechanism 10 includes a first connector 14, and the dimming bracket 13 is movably connected to the tuning bracket 11 at the first connection position 131 via the first connector 14.
[0100] The first connector 14 may include a first ball head 141 and a first ball head seat 142. The dimming bracket 13 is connected to one of the tuning brackets 11 at the first connection position 131 with the first ball head 141 and the other with the first ball head seat 142. The first ball head seat 142 forms a first receiving cavity 1421 with a first opening 1422. The first ball head 141 is located inside the first ball head seat 142. The first ball head 141 can be placed in the first receiving cavity 1421 through the first opening 1422. Since the relative movement of the first ball head 141 and the first ball head seat 142 is more flexible, the design of the first connector 14 including the first ball head 141 and the first ball head seat 142 is more conducive to improving the smoothness of the tuning bracket 11 driving the dimming bracket 13.
[0101] The first receiving cavity 1421 has a first notch 1423 at the first opening 1422, and the first notch 1423 penetrates the first ball joint 142 along the second direction y. In conjunction with the above, the adjustment bracket 11 moves relative to the lamp housing 30 along the extension direction z of the slide groove 31, which can drive the dimming bracket 13 at the first connection position 131 to have both a displacement in the extension direction z and a rotation relative to the adjustment bracket 11 around the first direction x. The first notch 1423 can improve the rotational constraint of the first ball joint 142 on the first ball joint 141.
[0102] It is understood that the dimming bracket 13 is connected to one of the tuning brackets 11 at the first connection position 131 with a first ball head 141 and the other with a first ball head seat 142. This can be either the first ball head 141 is connected at the first connection position 131 and the first ball head seat 142 is connected to the tuning bracket 11, or the first ball head 141 is connected at the first connection position 131 and the first ball head seat 142 is connected to the tuning bracket 11.
[0103] The dimming mechanism 10 includes a second connector 15, and the dimming bracket 13 is movably connected to the lamp housing 30 at the second connection position 132 via the second connector 15.
[0104] The second connector 15 includes a second ball head 151 and a second ball head seat 152. The dimming bracket 13 is connected to one of the lamp housings 30 at the second connection position 132 with the second ball head 151 and the other with the second ball head seat 152. The second ball head seat 152 forms a second receiving cavity 1521 with a second opening 1522. The second ball head 151 is located inside the second ball head seat 152. The first ball head 141 can be placed in the first receiving cavity 1421 through the first opening 1422. Since the relative movement of the second ball head 151 and the second ball head seat 152 is more flexible, the design of the second connector 15 including the second ball head 151 and the second ball head seat 152 is more conducive to improving the smoothness of the movement of the dimming bracket 13 relative to the lamp housing 30.
[0105] The second receiving cavity 1521 has a second notch (not shown in the figure) at the second opening 1522, and the second notch penetrates the second ball joint 152 along the first direction y. In conjunction with the above, the adjustment bracket 11 moves relative to the lamp housing 30 along the extension direction z of the slide groove 31, which can drive the dimming bracket 13 to rotate relative to the lamp housing 30 at the second connection position 132 around the first direction x. The setting of the second notch can improve the rotational constraint of the second ball joint 152 on the second ball joint 151.
[0106] It is understandable that the dimming bracket 13 is connected to one of the lamp housings 30 at the second connection position 132 with a second ball head 151 and the other with a second ball head seat 152. This can be either the second ball head 151 is connected at the second connection position 132 and the second ball head seat 152 is connected to the lamp housing 30, or the second ball head 151 is connected at the second connection position 132 and the second ball head seat 152 is connected to the lamp housing 30.
[0107] In this embodiment of the application, a first ball joint 142 is connected to the first connection position 131 and the first ball joint 141 is connected to the adjustment bracket 11; a second ball joint 152 is connected to the second connection position 132 and the second ball joint 151 is connected to the lamp housing 30.
[0108] The dimming mechanism 10 includes a drive component 16, which is fixed relative to the lamp housing 30. The drive component 16 is connected to the adjustment bracket 11 and is used to drive the adjustment bracket 11 to move along the extension direction z of the slide groove 31. By driving the adjustment bracket 11 to move relative to the lamp housing 30 along the extension direction z of the slide groove 31, the dimming mechanism 10 can achieve automated adjustment. The drive component 16 may include a motor and a conversion component. The base of the motor is fixed relative to the lamp housing 30. The conversion component connects the output shaft of the motor and the adjustment bracket 11, and is used to convert the rotational motion of the motor into linear motion, thereby driving the adjustment bracket 11 to move relative to the lamp housing 30 along the extension direction z of the slide groove 31. The structure of the conversion component that converts rotational motion into linear motion has been disclosed in related technologies and will not be described in detail here.
[0109] This application also provides a vehicle lamp 1, which includes a dimming mechanism 10, a light-emitting structure 20, and a lamp housing 30. The dimming mechanism 10 is based on the above embodiments. Since the vehicle lamp 1 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0110] This application also provides a vehicle, which includes a headlight 1. The headlight 1 includes the dimming mechanism 10 described above. The dimming mechanism 10 is based on the above embodiments. Since the vehicle employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0111] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.
Claims
1. A dimming mechanism, characterized in that, The dimming mechanism is used to synchronously adjust multiple light-emitting structures of the vehicle headlights. The dimming mechanism includes a linkage bracket and multiple dimming brackets distributed along a first direction. One of the joint adjustment bracket and the lamp housing of the vehicle lamp is provided with a sliding groove, and the other is connected to an elastic rolling element located in the sliding groove; The light-emitting structures are respectively disposed on the dimming bracket. The dimming bracket has a first connection position and a second connection position spaced apart along the second direction. The dimming bracket is movably connected to the tuning bracket at the first connection position and movably connected to the lamp housing at the second connection position. The first direction, the second direction and the extension direction of the slide are perpendicular to each other. If the adjustment bracket moves relative to the lamp housing along the extension direction of the slide groove, the elastic rolling element rolls within the slide groove.
2. The dimming mechanism according to claim 1, characterized in that, The dimming mechanism satisfies: h1 > h2; where h1 is the dimension of the elastic rolling element in the width direction of the groove, and h2 is the width of the groove; The elastic rolling element includes at least two elastic rolling portions distributed along the width direction of the groove. The at least two elastic rolling elements include a first elastic rolling portion and a second elastic rolling portion that are adjacent along the width direction of the groove. The dimming mechanism satisfies: r1 + r2 > h3; where r1 is the radius of the first elastic rolling portion; r2 is the radius of the second elastic rolling portion; and h3 is the distance between the first elastic rolling portion and the second elastic rolling portion in the width direction of the groove.
3. The dimming mechanism according to claim 2, characterized in that, The elastic rolling part includes: A rolling element, the rolling element connecting the adjustment bracket to another component of the lamp housing; An elastic ring is fixedly sleeved on the rolling element.
4. The dimming mechanism according to claim 3, characterized in that, The rolling element is a bearing, the inner ring of the bearing is fixedly connected to the adjustment bracket and the other one of the lamp housings, and the elastic ring is fixedly sleeved on the outer ring of the bearing.
5. The dimming mechanism according to claim 1, characterized in that, The groove is provided with a plurality of elastic rolling elements distributed along the extension direction of the groove.
6. The dimming mechanism according to claim 1, characterized in that, The joint adjustment bracket and the lamp housing are provided with a plurality of sliding grooves, the multiple sliding grooves extend in the same direction, and each sliding groove is provided with an elastic rolling element.
7. The dimming mechanism according to claim 6, characterized in that, The plurality of grooves includes a first groove and a second groove. The joint debugging support has a first sidewall and a second sidewall that are distributed opposite to each other along a first direction. Both the first sidewall and the second sidewall extend along the extension direction of the slide groove. The first slide groove is located at the first sidewall of the joint debugging support, and the second slide groove is located at the second sidewall of the joint debugging support.
8. The dimming mechanism according to claim 7, characterized in that, The plurality of said slides also include a third slide. The joint debugging support has a third sidewall connected between the first sidewall and the second sidewall, and the third sliding groove is located at the third sidewall of the joint debugging support.
9. The dimming mechanism according to claim 1, characterized in that, The other of the adjustment bracket and the lamp housing has a protrusion that extends into the slide groove, and the protrusion is connected to the elastic rolling element.
10. The dimming mechanism according to claim 1, characterized in that, It includes a first connector, which comprises a first ball head and a first ball head seat. The first connection position is connected to one of the joint adjustment brackets with the first ball head, and the other connection is connected to the first ball head seat. The first ball head seat forms a first receiving cavity with a first opening. The first receiving cavity has a first notch at the first opening. The first notch penetrates the first ball head seat along the second direction. The first ball head is located inside the first ball head seat.
11. The dimming mechanism according to claim 1, characterized in that, It also includes a second connector, which comprises a second ball head and a second ball head seat. The second connection position is connected to one of the lamp housings with the second ball head, and the other is connected to the second ball head seat. The second ball head seat forms a second receiving cavity with a second opening, and the second ball head is located inside the second ball head seat.
12. The dimming mechanism according to claim 1, characterized in that, The dimming bracket has two second connection positions. Along the second direction, the two second connection positions are located on the same side of the first connection position. The two second connection positions are distributed at intervals in the first direction. The dimming bracket is movably connected to the lamp housing at each of the second connection positions. And / or, along the second direction, the first connection position is closer to the groove than the second connection position.
13. The dimming mechanism according to claim 1, characterized in that, The dimming bracket is provided with a through hole, and the light-emitting structure passes through the through hole; And / or, the dimming mechanism further includes a driving member, which is fixed relative to the lamp housing and connected to the adjustment bracket for driving the adjustment bracket to move along the extension direction of the slide groove.
14. A vehicle light, characterized in that, It includes the dimming mechanism, the light-emitting structure, and the lamp housing as described in any one of claims 1 to 13.
15. A vehicle, characterized in that, Includes the vehicle lights as described in claim 14.