Vertical adjustment system for vehicle headlamp

Abstract

The present invention provides a vertical adjustment system for a vehicle lamp, which includes an optical component, a PCB board, a radiator, an adjustment screw, a spring, a limit bolt, a metal clip, a screw one, and a screw two. Among them, the radiator is fixed on the vehicle lamp by the screw one, the PCB board is fixed on the radiator by the screw two, and the optical component is clamped on the radiator by the metal clip. The adjustment screw is inserted into the circular through-hole structure of the screw post structure located on the radiator, and the screw post structure passes through the wedge-shaped post structure located on the optical component. The spring is sleeved on the outer circle of the screw post structure, that is, the spring is located between the screw post structure and the wedge-shaped post structure. The limit bolt is installed at the end of the adjustment screw through thread engagement. The optical component controls the elastic deformation of the spring by screwing the adjustment screw into and out of the limit bolt, so as to make the optical component generate a Z-direction displacement relative to the fixed radiator, that is, to realize the adjustment of the optical component in the vertical direction.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive headlights, and particularly to a vertical adjustment system for headlights. Background Art

[0002] With the continuous development of technologies in the field of automotive headlights, the headlight structure has become increasingly complex. Along with the increasingly stringent visual experience requirements of the vehicle manufacturers and consumers for headlights, and restricted by headlight regulations, the vertical adjustability of high and low beams has become an essential functional requirement for headlights.

[0003] In traditional design solutions, at least a separate adjustment system is required to achieve the vertical adjustability of high and low beams. The high and low beam optical components and their necessary load-bearing components - mounting brackets or radiators form sub-assemblies that already occupy a large amount of space and weight within the lamp body. Additionally, an extra separate adjustment system will inevitably make the lamp body space even more cramped and increase the burden on the weight of the lamp body. The separate adjustment system also requires an increase in the number of additional parts, design and production costs, and will accumulate more design and production tolerances, which is not beneficial to the adjustment accuracy. As a result, it becomes relatively difficult for vehicle manufacturers to meet the stringent requirements for vertical adjustment. Summary of the Invention

[0004] To solve the above problems, the present invention provides a vertical adjustment system for headlights, which avoids using an extra separate vertical adjustment system, enabling the realization of vertical adjustment entirely on the optical components and the load-bearing component of the optical components - the radiator, greatly reducing the number of parts and weight, thereby saving the internal space of the headlight lamp body and reducing the cumbersome work of subsequent design changes and production line adjustments due to the cumulative tolerances caused by a large number of parts.

[0005] The object of the present invention is to provide a vertical adjustment system for headlights, including an optical component, a PCB board, a radiator, an adjustment screw, a spring, a limit bolt, a metal clip, a screw one, and a screw two; wherein, the radiator is fixed on the headlight by the screw one, the PCB board is fixed on the radiator by the screw two, and the optical component is clamped on the radiator by the metal clip; the adjustment screw is inserted into the circular through-hole structure of the screw post structure located on the radiator, the screw post structure passes through the wedge-shaped post structure located on the optical component, the spring is sleeved on the outer circle of the screw post structure, that is, the spring is located between the screw post structure and the wedge-shaped post structure, and the limit bolt is installed at the end of the adjustment screw through thread engagement;

[0006] The optical component controls the elastic deformation of the spring by screwing the adjustment screw into and out of the limit bolt, thereby causing the optical component to generate a Z-direction displacement relative to the fixed radiator, that is, realizing the adjustment of the optical component in the vertical direction.

[0007] A further improvement lies in that: the front part of the optical component is the optical end E, the optical end E is in the structure of a reflecting bowl, spherical structures and fan-shaped structures are respectively designed on both sides of the bottom surface of the optical end E. The spherical structure realizes the limit in the form of point contact, and the fan-shaped structure realizes the limit in the form of line contact, solving the problem that using only point contact limits will lead to unstable limits and using only line contact limits will lead to over-positioning of the limits;

[0008] The back of the optical end E is connected to the non-optical end F. An opening structure and a "2"-shaped hole structure are designed at the front part of the non-optical end F, and a wedge-shaped column structure is designed at the back part of the non-optical end F. The design of the opening structure provides space for connecting the PCB board and the connector on the vehicle lamp. The top of the wedge-shaped column structure is a square hole, and the wedge-shaped column structure extends downward in a conical shape along the upper side of the optical component. Two identical buckle structures are designed on the front and back sides, namely the +X direction and the -X direction, at the bottom of the wedge-shaped column structure. The left and right sides, namely the Y direction, at the bottom of the wedge-shaped column structure are designed as through circular arc grooves. Two identical guiding rib structures, that is, a total of four guiding rib structures, are respectively designed on the left and right sides, namely the +Y direction and the -Y direction, of the outer circle of the wedge-shaped column structure. The two guiding rib structures arranged on the left and right sides, namely the +Y direction and the -Y direction, of the outer circle of the wedge-shaped column structure are arranged in an inclined parallel manner, forming two groups of identical limiting grooves arranged on the left and right sides, namely the +Y direction and the -Y direction, of the outer circle of the wedge-shaped column structure. The design of the inclined direction of the guiding rib structure is to facilitate the limiting bolt to exert a vertical pressure on the guiding rib structure when the optical component is vertically adjusted. Two identical limiting platforms are designed at the bottom of the inner wall of the wedge-shaped column structure.

[0009] A further improvement lies in that: a positioning post one, a positioning post two and a screw blind hole are designed at the front end of the radiator. A "2"-shaped rib structure is designed at the matching position of the middle part of the radiator and the "2"-shaped hole structure on the optical component. A screw post structure is designed at the back end of the radiator. The center of the screw post structure is a circular through-hole structure. A cylindrical platform is designed on the outer circle at the lower end of the screw post structure, and three identical inclined ribs arranged in a circular matrix are designed below the cylindrical platform along the screw post structure; screw holes are designed at the lower end of the radiator.

[0010] A further improvement lies in that: a round hole one and a round hole two are designed at the corresponding positions of the PCB board to the positioning post one and the positioning post two of the radiator, and a screw through-hole two is designed at the corresponding position of the PCB board to the screw blind hole of the radiator.

[0011] A further improvement lies in that: the adjusting screw and the spring are standard parts; the adjusting screw is an adjusting screw with a thread structure only designed at the tail; the limiting bolt is an axisymmetric part with a non-fully cylindrical structure, and a threaded hole is designed in the middle of the limiting bolt; two identical cuboid ribs, that is, a total of two, are respectively designed at both ends of the limiting bolt.

[0012] A further improvement lies in that: during installation, the round hole one and the round hole two of the PCB board are respectively sleeved on the positioning post one and the positioning post two of the radiator in sequence, ensuring that the screw through hole two of the PCB board is aligned with the screw blind hole of the radiator. Then, the screw two is passed through the screw through hole two of the PCB board and screwed into the screw blind hole of the radiator to complete the fixation of the PCB board on the radiator, forming the sub-assembly one J.

[0013] A further improvement lies in that: during the installation of the spring onto the sub-assembly one J, with the guiding effect of the three inclined surface ribs of the screw post structure, the spring is sleeved on the lower end of the screw post structure on the radiator, ensuring that the upper end of the spring abuts against the lower end surface of the cylindrical platform on the screw post structure. Then, the "2" - shaped hole structure of the optical component is sleeved on the "2" - shaped rib structure of the radiator. The "2" - shaped rib structure and the "2" - shaped hole structure are in clearance fit, ensuring the limitation of the optical component to the sub-assembly one in the directions of J+X, -X, +Y, -Y, and +Z. The wedge - shaped column structure of the optical component is sleeved on the screw post structure of the radiator, ensuring that the lower end of the spring abuts against the upper end surfaces of the two identically - structured limiting platforms of the wedge - shaped column structure, achieving the complete limitation of the spring in the X, Y, and Z directions between the radiator and the optical component. Ensure that the distance from the lower end surface of the cylindrical platform to the upper end surface of the limiting platform is slightly less than the natural length of the spring, that is, the spring is in a slightly compressed state after installation. Moreover, it is necessary to ensure that the spherical structure and the fan - shaped structure of the optical component both abut against the lower surface of the PCB board of the sub-assembly one J, thereby realizing the positioning of the optical end E of the optical component and the PCB board and realizing the rotation axis during the vertical adjustment movement of the optical component. Then, the metal clip is clamped along the +X direction at the front end of the optical component and the radiator. Finally, using a tool, the radiator and the optical component, PCB board, adjustment screw, spring, limit bolt, and metal clip installed on the radiator are fixed on the vehicle lamp together by the screw one.

[0014] A further improvement lies in that: after the adjustment screw is inserted into the circular through - hole structure of the screw post structure, a limit bolt is screwed onto the threaded structure at the tail end of the adjustment screw, ensuring that the two rectangular body ribs of the limit bolt respectively extend into the limit grooves formed by two limit ribs on each of the left and right sides of the outer circle of the optical component. The outer cylindrical surface of the limit bolt fits with the arc - shaped through - groove of the wedge - shaped column structure, and the buckle structure of the wedge - shaped column structure on the optical component is stuck on the outer cylindrical surface of the limit bolt, ensuring the fixation of the limit bolt on the optical component.

[0015] A further improvement lies in that when adjusting vertically upward, i.e., in the +Z direction, a tool is used to screw the adjusting screw clockwise from the top, causing the adjusting screw to rotate clockwise relative to the limit bolt and thus move in the -Z direction. The limit bolt rotates counterclockwise under the reaction force of the adjusting screw and moves in the +Z direction. The wedge-shaped column structure is subjected to the pressure from the limit bolt along the +Z direction. The spring located between the wedge-shaped column structure and the screw column structure is compressed due to the elastic deformation caused by the pressure from the limit platform of the wedge-shaped column structure in the +Z direction, thereby realizing the counterclockwise rotation of the optical component around the rotation axis in the +Y direction, and thus realizing the +Z direction adjustment during the vertical adjustment of the optical component.

[0016] A further improvement lies in that when adjusting vertically downward, i.e., in the -Z direction, a common tool is used to screw the adjusting screw counterclockwise from the top, causing the adjusting screw to rotate counterclockwise relative to the limit bolt and thus move in the +Z direction. The limit bolt rotates clockwise under the reaction force of the adjusting screw and moves in the -Z direction. The wedge-shaped column structure is subjected to the pressure from the limit bolt along the -Z direction, causing the spring located between the wedge-shaped column structure and the screw column structure to elongate due to the elastic deformation caused by releasing the pressure from the limit platform of the wedge-shaped column structure in the +Z direction, thereby realizing the clockwise rotation of the optical component around the rotation axis in the +Y direction, and thus realizing the -Z direction adjustment during the vertical adjustment of the optical component.

[0017] The beneficial effects of the present invention are as follows: The present invention avoids the design and production costs caused by the need to separately design a separate adjustment system for the adjustment of high and low beams in the prior art, and also solves the problem of multiple cumulative tolerances caused by the generation of multiple parts in the separate adjustment system. While saving the space and weight of the lamp body, it also improves the accuracy of design, production, and adjustment, reduces the later design and production changes, and makes the entire adjustment system more stable. Description of the Drawings

[0018] Figure 1 is an isometric view of the vertical adjustment system for vehicle headlights of the present invention.

[0019] Figure 2 is an isometric view of the optical component of the present invention.

[0020] Figure 3 is of the present invention Figure 2 magnified view G.

[0021] Figure 4 is a top view of the optical component of the present invention.

[0022] Figure 5 is an isometric view of the radiator of the present invention.

[0023] Figure 6 is a left view of the radiator of the present invention.

[0024] Figure 7is of the present invention Figure 6 Enlarged H view

[0025] Figure 8 is of the present invention Figure 6 I-I sectional view

[0026] Figure 9 Isometric view of the PCB board of the present invention

[0027] Figure 10 Isometric view of the adjusting screw of the present invention

[0028] Figure 11 Isometric view of the limit bolt of the present invention

[0029] Figure 12 Isometric view of the first sub-assembly of the present invention

[0030] Figure 13 Left view of the vertical adjustment system for vehicle lights of the present invention

[0031] Figure 14 Isometric view of the installation of the optical component and the first sub-assembly of the present invention

[0032] Figure 15 is of the present invention Figure 13 B-B sectional view

[0033] Figure 16 Top view of the vertical adjustment system for vehicle lights of the present invention - Z-direction adjustment

[0034] Figure 17 Left view of the vertical adjustment system for vehicle lights of the present invention - Z-direction adjustment

[0035] Figure 18 is of the present invention Figure 17 C-C sectional view

[0036] Figure 19 Top view of the vertical adjustment system for vehicle lights of the present invention + Z-direction adjustment

[0037] Figure 20 Left view of the vertical adjustment system for vehicle lights of the present invention + Z-direction adjustment

[0038] Figure 21 is of the present invention Figure 20 D-D sectional view

[0039] In the figure: 1 - optical component, 2 - PCB board, 3 - radiator, 4 - adjusting screw, 5 - spring, 6 - limit bolt, 7 - metal clip, 8 - screw one, 9 - screw two, 10 - spherical structure, 11 - fan-shaped structure, 12 - opening structure, 13 - "2"-shaped hole structure, 14 - wedge-shaped column structure, 15 - buckle structure, 16 - circular arc through groove, 17 - guiding rib structure, 18 - limit platform, 19 - positioning post one, 20 - positioning post one, 21 - screw blind hole, 22 - "2"-shaped rib structure, 23 - screw post structure, 24 - circular through hole structure, 25 - circular through hole structure, 26 - inclined surface rib, 27 - screw hole, 28 - round hole one, 29 - round hole two, 30 - screw through hole two, 31 - thread structure, 32 - threaded hole, 33 - cuboid rib, 34 - rotating shaft, 40 - square hole, E - optical end, F - non-optical end. Detailed implementation mode

[0040] To deepen the understanding of the present invention, the present invention will be further described in detail below in combination with embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "left", "right", "up", "down", "front", "back", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship in the automotive industry and shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0042] As Figure 1-21 shown, this embodiment provides a vertical adjustment system for vehicle headlights.

[0043] As Figure 1As shown in the figure, the vertical adjustment system for this vehicle lamp includes an optical component 1, a PCB board 2, a radiator 3, an adjustment screw 4, a spring 5, a limit bolt 6, a metal clip 7, a first screw 8, and a second screw 9. Among them, the radiator 3 is fixed to the vehicle lamp by the first screw 8, the PCB board 2 is fixed to the radiator 3 by the second screw 9, and the optical component 1 is clamped to the radiator 3 by the metal clip 7; the adjustment screw 3 is inserted into the circular through-hole structure 24 of the screw post structure 23 on the radiator 3, and the screw post structure 23 passes through the wedge-shaped post structure 14 of the optical component 1. The spring 4 is sleeved on the outer ring of the screw post structure 7, that is, the spring 5 is located between the screw post structure 23 and the wedge-shaped post structure 14, and the limit bolt 6 is installed at the end of the adjustment screw 3 through thread engagement. The optical component 1 controls the elastic deformation of the spring 5 by screwing in and out the adjustment screw 4 on the limit bolt 6, thereby causing the optical component 1 to generate a Z-direction displacement relative to the fixed radiator 3, that is, realizing the adjustment of the optical component 1 in the vertical direction.

[0044] As Figure 2 , as shown in Figures 3 and 4, the front part of the optical component 1 is the optical end E, and the optical end E is a common reflector bowl structure. Spherical structures 10 and fan-shaped structures 11 are respectively designed on both sides of the bottom surface of the optical end E. The spherical structure 10 realizes the limit in the form of point contact, and the fan-shaped structure 11 realizes the limit in the form of line contact, solving the problem that all using point contact limits will lead to unstable limits and all using line contact limits will lead to over-positioning of the limits. The back of the optical end E is connected to the non-optical end F. An opening structure 12 and a "2"-shaped hole structure 13 are designed at the front part of the non-optical end F, and a wedge-shaped post structure 14 is designed at the back part of the non-optical end F. The design of the opening structure 12 provides space for connecting the PCB board 2 and the connector on the vehicle lamp. The top of the wedge-shaped post structure 14 is a square hole 40, and the wedge-shaped post structure 14 extends downward in a conical shape along the upper side surface of the optical component 1. Two identical buckle structures 15 are designed on the front and back sides of the bottom of the wedge-shaped post structure 14, that is, in the +X direction and -X direction. The left and right sides of the bottom of the wedge-shaped post structure 14, that is, in the Y direction, are designed as through circular arc grooves 16. Two identical guide rib structures 17 are respectively designed on the left and right sides of the outer circle of the wedge-shaped post structure 14, that is, in the +Y direction and -Y direction, for a total of four. The two guide rib structures 17 arranged on the left and right sides of the outer circle of the wedge-shaped post structure 14, that is, in the +Y direction and -Y direction, are arranged in an inclined parallel manner, forming two groups of identical limit grooves arranged on the left and right sides of the outer circle of the wedge-shaped post structure 14, that is, in the +Y direction and -Y direction. The design of the inclined direction of the guide rib structure 17 is to facilitate the limit bolt 6 to apply a vertical pressure to the guide rib structure 17 when the optical component 1 is vertically adjusted. Two identical limit platforms 18 are designed at the bottom of the inner wall of the wedge-shaped post structure 14.

[0045] As Figure 5, as shown in Figures 6, 7, and 8, the front end of the radiator 3 is designed with a positioning post one 19, a positioning post two 20, and a screw blind hole 21. At the mating position of the middle part of the radiator 3 and the "2" - shaped hole structure 13 on the optical component 1, a "2" - shaped rib structure is designed. The rear end of the radiator 3 is designed with a screw post structure 23. The center of the screw post structure 23 is a circular through - hole structure 24. The outer circle at the lower end of the screw post structure 23 is designed with a cylindrical platform 25. Below the cylindrical platform 25, three identically - structured inclined ribs 26 arranged in a circular matrix along the screw post structure 23 are designed. The lower end of the radiator 3 is designed with a screw hole 27.

[0046] As Figure 9 shown, at the corresponding positions of the PCB board 2 to the positioning post one 19 and the positioning post two 20 of the radiator 3, a round hole one 28 and a round hole two 29 are designed. At the corresponding position of the PCB board 2 to the screw blind hole 21 of the radiator 3, a screw through - hole two 30 is designed.

[0047] As Figure 10 , as shown in Figures 10 and 11, the adjusting screw 4 and the spring 5 are standard parts commonly used in the mechanical industry, especially in the automotive industry. Among them, the adjusting screw 4 is a common adjusting screw in the mechanical industry with a thread structure 31 designed only at the shorter length of the tail. The limiting bolt 6 is an axisymmetric part with a non - completely cylindrical structure. A threaded hole 32 is designed in the middle of the limiting bolt 6. At both ends of the limiting bolt 6, a total of two identically - shaped rectangular ribs 33 are designed respectively.

[0048] As Figure 12, as shown in Figures 13, 14, and 15, during installation, the first round hole 28 and the second round hole 29 of the PCB board 2 are respectively sleeved on the first positioning post 19 and the second positioning post 20 of the radiator 3 in sequence, ensuring that the second screw through hole 30 of the PCB board 2 is aligned with the screw blind hole 21 of the radiator 3. Then, use a common installation tool to screw the second screw 9 through the second screw through hole 30 of the PCB board 2 into the screw blind hole 21 of the radiator 3 to complete the fixation of the PCB board 2 on the radiator 3, forming the first sub-assembly J. Then, perform the installation of the spring 5 onto the first sub-assembly J. During installation, the spring 5 is sleeved on the lower end of the screw post structure 23 on the radiator 3 with the guiding effect of the three inclined ribs 26 of the screw post structure 23, ensuring that the upper end of the spring 5 abuts against the lower end face of the cylindrical platform 25 on the screw post structure 23. Then, the "2" - shaped hole structure 13 of the optical component 1 is sleeved on the "2" - shaped rib structure 22 of the radiator 3. The "2" - shaped rib structure 22 and the "2" - shaped hole structure 13 are in clearance fit, ensuring the limitation of the optical component 1 to the first sub-assembly J in the directions of +X, -X, +Y, -Y, and +Z. The wedge-shaped post structure 14 of the optical component 1 is sleeved on the screw post structure 23 of the radiator 3, ensuring that the lower end of the spring 5 abuts against the upper end faces of the two identically structured limiting platforms 18 of the wedge-shaped post structure 14, realizing the complete limitation of the spring 5 in the X, Y, and Z directions between the radiator 3 and the optical component 1, and ensuring that the distance from the lower end face of the cylindrical platform 25 to the upper end face of the limiting platform 18 is slightly less than the natural length of the spring 5, that is, the spring 5 is in a slightly compressed state after installation. Moreover, it is necessary to ensure that the spherical structure 10 and the fan-shaped structure 11 of the optical component 1 both abut against the lower surface of the PCB board 2 of the first sub-assembly J, thereby realizing the positioning of the optical end E of the optical component 1 and the PCB board 2 and realizing the rotation axis 34 when the optical component 1 performs vertical adjustment movement. Then, the metal clip 7 is clamped along the +X direction at the front end of the optical component 1 and the radiator 3. The metal clip 7 is a common metal fastener and does not affect the present invention, so the present invention does not separately describe the structure of the metal clip 7. Finally, use a general screw tool to fix the radiator 3 and the optical component 1, the PCB board 2, the adjusting screw 4, the spring 5, the limiting bolt 6, and the metal clip 7 installed on the radiator 3 together on the vehicle lamp by relying on the first screw 8.After the adjusting screw 4 is inserted into the circular through-hole structure 24 of the screw post structure 23, the limit bolt 6 is screwed onto the threaded structure 31 at the tail end of the adjusting screw 4, ensuring that the two rectangular ribs 32 of the limit bolt 6 respectively extend into the limit grooves formed by two limit ribs 17 on the left and right sides of the outer circle of the optical component 1. The outer cylindrical surface of the limit bolt 6 fits with the arc-shaped through groove 16 of the wedge-shaped post structure 14, and the snap structure 15 of the wedge-shaped post structure on the optical component 1 is stuck on the outer cylindrical surface of the limit bolt 6, ensuring the fixation of the limit bolt 6 on the optical component 1.

[0049] As Figure 16 , as shown in FIGS. 17, 18, when adjusting vertically upward, i.e., in the +Z direction, a general tool is used to screw the adjusting screw 4 in the clockwise direction from the top, causing the adjusting screw 4 to rotate clockwise relative to the limit bolt 6 and thus move in the -Z direction. The limit bolt 6 is subjected to the reaction force of the adjusting screw 4 and rotates counterclockwise and moves in the +Z direction. The wedge-shaped post structure 14 is subjected to the pressure from the limit bolt 6 along the +Z direction. The spring 5 located between the wedge-shaped post structure 14 and the screw post structure 23 is subjected to the pressure from the limit platform 18 of the wedge-shaped post structure 14 in the +Z direction and undergoes elastic deformation and compression, thereby realizing the counterclockwise rotation of the optical component 1 around the rotation axis 34 in the +Y direction, so that the optical end E of the optical component 1 moves upward, i.e., in the +Z direction, realizing the +Z direction adjustment during the vertical adjustment of the optical component 1.

[0050] As Figure 19 , as shown in FIGS. 20, 21, when adjusting vertically downward, i.e., in the -Z direction, a general tool is used to screw the adjusting screw 4 in the counterclockwise direction from the top, causing the adjusting screw 4 to rotate counterclockwise relative to the limit bolt 6 and thus move in the +Z direction. The limit bolt 6 is subjected to the reaction force of the adjusting screw 4 and rotates clockwise and moves in the -Z direction. The wedge-shaped post structure 14 is subjected to the pressure from the limit bolt 6 along the -Z direction, causing the spring 5 located between the wedge-shaped post structure 14 and the screw post structure 23 to release the pressure from the limit platform 18 of the wedge-shaped post structure 14 in the +Z direction and undergo elastic deformation and elongation, thereby realizing the clockwise rotation of the optical component 1 around the rotation axis 34 in the +Y direction, so that the optical end E of the optical component 1 moves downward, i.e., in the -Z direction, realizing the -Z direction adjustment during the vertical adjustment of the optical component 1.

[0051] This embodiment avoids using an additional separate set of vertical adjustment systems, enabling the realization of vertical adjustment entirely on the optical components and the carrier of the optical components - the radiator, greatly reducing the number of parts and weight, thereby saving the internal space of the headlight lamp body and further reducing the cumbersome work of subsequent design changes and production line adjustments due to the cumulative tolerances caused by a large number of parts.

Claims

1. A vertical adjustment system for a vehicle lamp, characterized in that: It includes an optical component, a PCB board, a radiator, an adjusting screw, a spring, a limit bolt, a metal clip, screw one, and screw two. Among them, the radiator is fixed on the vehicle lamp by screw one, the PCB board is fixed on the radiator by screw two, and the optical component is clamped on the radiator by the metal clip. The adjusting screw is inserted into the circular through-hole structure of the screw post structure located on the radiator. The screw post structure passes through the wedge-shaped post structure located on the optical component. The spring is sleeved on the outer circle of the screw post structure, that is, the spring is located between the screw post structure and the wedge-shaped post structure. The limit bolt is installed at the end of the adjusting screw through thread engagement. The optical component relies on the screwing in and out of the adjusting screw on the limit bolt to control the elastic deformation of the spring, thereby causing the optical component to generate a Z-direction displacement relative to the fixed radiator, that is, realizing the adjustment of the optical component in the vertical direction. The front part of the optical component is the optical end E, and the optical end E is a reflector bowl structure. On both sides of the bottom surface of the optical end E, a spherical structure and a fan-shaped structure are respectively designed. The spherical structure realizes the limit in the form of point contact, and the fan-shaped structure realizes the limit in the form of line contact, solving the problem that all using point contact limit will lead to unstable limit and all using line contact limit will lead to over-positioning of the limit. The back of the optical end E is connected to the non-optical end F. The front part of the non-optical end F is designed with an opening structure and a "2" - shaped hole structure. The back part of the non-optical end F is designed with a wedge-shaped post structure. The design of the opening structure provides space for connecting the PCB board and the connector on the vehicle lamp. The top of the wedge-shaped post structure is a square hole. The wedge-shaped post structure extends downward in a conical shape along the upper side of the optical component. On the front and rear sides of the bottom of the wedge-shaped post structure, that is, in the +X direction and -X direction, two identical buckle structures are designed. On the left and right sides of the bottom of the wedge-shaped post structure, that is, in the Y direction, it is designed as a through circular arc groove. On the left and right sides of the outer circle of the wedge-shaped post structure, that is, in the +Y direction and -Y direction, two identical structures, that is, a total of four guiding rib structures are respectively designed. The two guiding rib structures arranged on the left and right sides of the outer circle of the wedge-shaped post structure, that is, in the +Y direction and -Y direction, are arranged in an inclined parallel manner, forming two sets of identical limit grooves arranged on the left and right sides of the outer circle of the wedge-shaped post structure, that is, in the +Y direction and -Y direction. The design of the inclined direction of the guiding rib structure is to facilitate the limit bolt to apply a vertical direction pressure to the guiding rib structure when the optical component is vertically adjusted. Two identical limit platforms are designed at the bottom of the inner wall of the wedge-shaped post structure. The adjusting screw and the spring are standard parts. The adjusting screw is an adjusting screw with a thread structure only designed at the tail. The limit bolt is an axisymmetric part with a non-fully cylindrical structure, and a threaded hole is designed in the middle of the limit bolt. At both ends of the limit bolt, two identical cuboid ribs are respectively designed, a total of two.

2. The vertical adjustment system for vehicle lamps according to claim 1, wherein: The front end of the radiator is designed There are a positioning post 1, a positioning post 2 and a screw blind hole. At the mating position of the middle part of the radiator and the "2"-shaped hole structure on the optical component, a "2"-shaped rib structure is designed. At the rear end of the radiator, a screw post structure is designed. The center of the screw post structure is a circular through-hole structure. The outer circle at the lower end of the screw post structure is designed with a cylindrical platform, and three identical inclined ribs arranged in a circular matrix along the screw post structure are designed below the cylindrical platform. At the lower end of the radiator, a screw hole is designed.

3. The vertical adjustment system for vehicle lamps according to claim 2, wherein: At the corresponding positions of the PCB board to the positioning post 1 and the positioning post 2 of the radiator, a round hole 1 and a round hole 2 are designed. At the corresponding position of the PCB board to the screw blind hole of the radiator, a screw through-hole 2 is designed.

4. The vertical adjustment system for vehicle lamps according to claim 3, characterized in that: During installation, the round hole 1 and the round hole 2 of the PCB board are respectively sleeved on the positioning post 1 and the positioning post 2 of the radiator in sequence to ensure that the screw through-hole 2 of the PCB board is aligned with the screw blind hole of the radiator. Then, screw 2 is passed through the screw through-hole 2 of the PCB board and screwed into the screw blind hole of the radiator to complete the fixation of the PCB board on the radiator, forming sub-assembly 1 J.

5. The vertical adjustment system for vehicle lamps according to claim 4, characterized in that: When installing the spring onto sub-assembly 1 J, with the guiding effect of the three inclined ribs of the screw post structure, the spring is sleeved on the lower end of the screw post structure on the radiator, ensuring that the upper end of the spring abuts against the lower end face of the cylindrical platform on the screw post structure. Then, the "2"-shaped hole structure of the optical component is sleeved on the "2"-shaped rib structure of the radiator. The "2"-shaped rib structure and the "2"-shaped hole structure are in clearance fit to ensure the limitation of the optical component to sub-assembly 1 J in the +X, -X, +Y, -Y and +Z directions. The wedge-shaped post structure of the optical component is sleeved on the screw post structure of the radiator, ensuring that the lower end of the spring abuts against the upper end faces of the two identical limiting platforms of the wedge-shaped post structure, realizing the complete limitation of the spring in the X, Y, and Z directions between the radiator and the optical component. Ensure that the distance from the lower end face of the cylindrical platform to the upper end face of the limiting platform is slightly less than the natural length of the spring, that is, the spring is in a slightly compressed state after installation. Moreover, it is necessary to ensure that the spherical structure and the fan-shaped structure of the optical component both abut against the lower surface of the PCB board of sub-assembly 1 J, thereby realizing the positioning of the optical end E of the optical component and the PCB board and realizing the rotation axis during the vertical adjustment movement of the optical component. Then, the metal clip is clamped along the +X direction at the front ends of the optical component and the radiator. Finally, using a tool, rely on screw 1 to fix the radiator and the optical component, PCB board, adjustment screw, spring, limit bolt and metal clip installed on the radiator together on the vehicle lamp.

6. The vertical adjustment system for vehicle lamps according to claim 1, characterized in that: After the adjustment screw is inserted into the circular through-hole structure of the screw post structure, a limit bolt is screwed onto the threaded structure at the tail end of the adjustment screw, ensuring that the two rectangular ribs of the limit bolt respectively extend into the limit grooves formed by two limit ribs on each of the left and right sides of the outer circle of the optical component. The outer cylindrical surface of the limit bolt fits with the arc-shaped through-groove of the wedge-shaped post structure. The buckle structure of the wedge-shaped post structure on the optical component is clamped on the outer cylindrical surface of the limit bolt to ensure the fixation of the limit bolt on the optical component.

7. The vertical adjustment system for vehicle lamps according to claim 6, characterized in that: When adjusting vertically upward, i.e., in the +Z direction, use a tool to turn the adjustment screw clockwise from the top, causing the adjustment screw to rotate clockwise relative to the limit bolt and move in the -Z direction. The limit bolt rotates counterclockwise under the reaction force of the adjustment screw and moves in the +Z direction. The wedge column structure is subjected to the pressure from the limit bolt along the +Z direction. The spring located between the wedge column structure and the screw column structure is compressed due to the elastic deformation caused by the pressure from the limit platform of the wedge column structure in the +Z direction, thereby realizing the counterclockwise rotation of the optical component around the rotation axis in the +Y direction, and thus realizing the +Z direction adjustment during the vertical adjustment of the optical component.

8. The vertical adjustment system for vehicle lamps according to claim 6, wherein: When adjusting vertically downward, i.e., in the -Z direction, use a general tool to turn the adjustment screw counterclockwise from the top, causing the adjustment screw to rotate counterclockwise relative to the limit bolt and move in the +Z direction. The limit bolt rotates clockwise under the reaction force of the adjustment screw and moves in the -Z direction. The wedge column structure is subjected to the pressure from the limit bolt along the -Z direction, causing the spring located between the wedge column structure and the screw column structure to stretch due to the elastic deformation caused by releasing the pressure from the limit platform of the wedge column structure in the +Z direction, thereby realizing the clockwise rotation of the optical component around the rotation axis in the +Y direction, and thus realizing the -Z direction adjustment during the vertical adjustment of the optical component.

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