A head-up display assembly structure

Abstract

This utility model discloses a head-up display (HUD) assembly structure, including a HUD body, a PGU mounting structure, a mirror drive control structure, a housing, and a shielding film. The PGU mounting structure, the mirror drive control structure, and the housing are respectively disposed at predetermined positions on the HUD body. The shielding film is disposed on the housing. The PGU mounting structure includes a PGU device for generating and projecting images. The mirror drive control structure includes a mirror, which is adjustablely disposed on the HUD body for reflecting images. This utility model provides a reliable and durable head-up display assembly structure, improving the stability and reliability of the HUD assembly structure.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle head-up display (HUD), specifically relating to an assembly structure of a head-up display. Background Technology

[0002] As the automotive industry moves towards intelligentization, head-up display (HUD) technology, as an important means to enhance driving safety, is receiving increasing attention. Currently, existing HUD assemblies on the market suffer from several technical bottlenecks. For example, in terms of structural weight, many HUD assemblies employ complex and bulky designs, including numerous metal supports, traditional optical lenses, and relatively dispersed electronic components, resulting in a significant overall weight. This bulky structure not only increases the vehicle's overall load but also makes heavier components more prone to loosening or displacement due to vibrations during vehicle operation, potentially affecting the stability and reliability of the HUD system and causing projection image deviations. Furthermore, regarding optical projection, some HUD assemblies suffer from problems such as non-adjustable, difficult-to-adjust, and poor-precision adjustment of the rotating mirrors. When the driver's viewing angle changes, the projected image may experience decreased clarity, distortion, or even become unreadable.

[0003] Currently, there is a lack of a new head-up display assembly structure to improve the stability and reliability of HUD assembly structure use.

[0004] Therefore, a new technology is needed to address the lack of a novel head-up display assembly structure in existing technologies. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a novel head-up display assembly structure that is reliable and durable, thereby improving the stability and reliability of the HUD assembly structure.

[0006] The present invention adopts the following technical solution:

[0007] A head-up display (HUD) assembly includes a HUD body, a PGU mounting structure, a mirror drive control structure, a housing, and a shielding film. The PGU mounting structure, the mirror drive control structure, and the housing are respectively positioned on the HUD body at designated locations. The shielding film is disposed on the housing. The PGU mounting structure includes a PGU device for generating and projecting images. The mirror drive control structure includes a mirror that is adjustablely mounted on the HUD body for reflecting images.

[0008] Furthermore, the PGU mounting structure also includes a mounting base and a heat sink; the PGU device is disposed on the mounting base; the mounting base is provided with a positioning connection part; the mounting base is connected to the HUD body through the positioning connection part; the heat sink is disposed on the HUD body and is connected to the PGU device.

[0009] Furthermore, the rotating mirror transmission control structure also includes a driving device and an elastic adjustment member; the elastic adjustment member is disposed on the driving device; the driving device is disposed on the HUD body, and the elastic adjustment member is connected to the HUD body; the rotating mirror is disposed on the HUD body, and the rotating mirror is connected to the driving device, and the elastic adjustment member is used to adjust the connection between the driving device and the rotating mirror in a timely manner.

[0010] Furthermore, the driving device includes a power unit, a bracket, and a transmission unit; both the power unit and the transmission unit are mounted on the bracket, and the power unit is connected to the transmission unit to drive the transmission unit to rotate; the bracket is mounted on the HUD body; the rotating mirror is provided with a rotating mirror gear, and the rotating mirror gear is connected to the transmission unit in a transmission connection.

[0011] Furthermore, the rotating mirror transmission control structure also includes a limit switch; the limit switch is disposed on the bracket;

[0012] The rotating mirror is equipped with a touch structure; the touch structure is used to trigger the limit switch.

[0013] Furthermore, a polarizer is integrated on the shielding film.

[0014] Furthermore, the assembly structure also includes a light shield; the light shield is disposed on the HUD body.

[0015] Furthermore, the assembly structure also includes a fixed lens; the fixed lens is disposed on the light shield and is used to reflect the image.

[0016] Furthermore, the fixed lens is attached and fixed to the light shield.

[0017] Furthermore, the HUD body is a plastic shell.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This invention discloses a head-up display (HUD) assembly structure that is reliable and durable, improving the stability and reliability of the HUD assembly. The HUD body is preferably designed as a plastic shell, effectively reducing the overall weight of the HUD assembly and ensuring its overall stability. Furthermore, the PGU mounting structure of this invention can be stably mounted on the HUD body, ensuring the stability of the PGU device's generated and projected images. Additionally, the rotating mirror transmission control structure of this invention can reliably control the angle adjustment of the rotating mirror to meet the driver's observation needs from different angles, ensuring the clarity of the projected image. Finally, the shielding film of this invention can prevent dust and sunlight from entering the HUD body, effectively reducing the impact of environmental factors on image projection quality. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] Figure 1 This is a first-person perspective 3D schematic diagram of the HUD main body;

[0022] Figure 2 This is a 3D schematic diagram of the mounting base;

[0023] Figure 3 This is a 3D schematic diagram of the first PGU board;

[0024] Figure 4 This is a 3D schematic diagram of the second PGU board;

[0025] Figure 5 This is a three-dimensional schematic diagram of the first functional component from a first-person perspective;

[0026] Figure 6 This is a three-dimensional schematic diagram of the first functional component from a second perspective;

[0027] Figure 7 This is a three-dimensional schematic diagram of the heat sink from a first-person perspective;

[0028] Figure 8 This is a three-dimensional schematic diagram of the heat sink from a second perspective;

[0029] Figure 9 This is a three-dimensional schematic diagram of the first PGU board being mounted on the mounting base and the mounting base being mounted on the HUD body;

[0030] Figure 10 yes Figure 9 A magnified view of the area at point P1;

[0031] Figure 11 This is a three-dimensional schematic diagram of the second PGU board mounted on the mounting base;

[0032] Figure 12 yes Figure 11 A magnified view of the area at point P2;

[0033] Figure 13 This is a three-dimensional schematic diagram of the first functional component mounted on the mounting base;

[0034] Figure 14 yes Figure 13 A magnified view of the area at point P3;

[0035] Figure 15 This is a 3D schematic diagram of the heat sink being installed on the HUD main body;

[0036] Figure 16 yes Figure 15 A magnified view at point P4;

[0037] Figure 17 This is a pre-assembly diagram of the drive unit, elastic adjustment component, and limit switch;

[0038] Figure 18 It is a three-dimensional schematic diagram of the drive unit, elastic adjustment component and limit switch assembled together;

[0039] Figure 19 This is a three-dimensional schematic diagram of the drive device from another perspective (mainly showing that one end of the elastic adjustment element is set on the bracket);

[0040] Figure 20 It is a stereoscopic diagram from the first-person perspective of the rotating camera;

[0041] Figure 21 This is a pre-assembly diagram of the HUD main body, drive unit, and rotating mirror;

[0042] Figure 22 This is a three-dimensional schematic diagram of the drive device inserting into the first slot structure at a set angle.

[0043] Figure 23 This is a three-dimensional schematic diagram showing the other end of the elastic adjustment component connected to the set position of the HUD main body (the bracket and transmission part are not shown).

[0044] Figure 24 This is a three-dimensional schematic diagram of a drive device with elastic adjustment components and a rotating mirror mounted on the HUD main body.

[0045] Figure 25 This is a 3D schematic diagram of a fixed lens arranged in the main body of the HUD (the light shield is not shown).

[0046] Figure 26 It is a three-dimensional schematic diagram of the shell cover;

[0047] Figure 27 This is a 3D schematic diagram of the shielding film;

[0048] Figure 28 This is a three-dimensional schematic diagram of the "assembly structure of a head-up display" of this utility model.

[0049] Figure label:

[0050] 1-HUD main body; 11-Slot;

[0051] 2-PGU mounting structure;

[0052] 21-PGU device;

[0053] 211-PGU assembly; A-Connecting protrusion; 2111-First PGU plate; 2112-Second PGU plate; B-Connecting post;

[0054] 212-First functional component; 2121-LED board; C-First through hole; D-Second through hole; 2122-LED chip;

[0055] 22-Mounting base;

[0056] 221-Positioning connection part; E-First hole; F-Second hole; 222-Hollow groove; 223-Connecting plate; 224-Guide positioning rail; G-Baffle; 225-Positioning protrusion; H-Second threaded hole;

[0057] 23-Heat dissipation components;

[0058] 231-Heat dissipation cover; 2311-First connecting hole; 2312-Second connecting hole; 2313-Slot; 232-Heat dissipation baffle;

[0059] 24-Connecting post; 241-First threaded hole;

[0060] 25 - Positioning post;

[0061] 3- Rotating mirror drive control structure;

[0062] 31-Rotating mirror; 311-Rotating mirror gear; 312-Touching structure; 313-Connecting shaft;

[0063] 32-Drive unit; 321-Power unit; 322-Bracket; K-Bracket groove; 3221-Side protrusion; M-Smooth part; 3222-Settling area; 323-Transmission unit; L-Axial direction; N-Up and down floating direction;

[0064] 33 - Flexible adjusting element; R - One end; S - The other end;

[0065] 34-First slot structure;

[0066] 35 - Limit switch;

[0067] 36 - Second slot structure;

[0068] 37-Limiting plate;

[0069] 4-Shell cover;

[0070] 5-Shielding film;

[0071] 61-First fastener; 62-Second fastener; 63-Third fastener; 64-Fourth fastener; 65-Fifth fastener;

[0072] 7-Fixed lens;

[0073] P1 - First zoomed-in icon; P2 - Second zoomed-in icon; P3 - Third zoomed-in icon; P4 - Fourth zoomed-in icon. Detailed Implementation

[0074] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0075] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0076] Reference Figures 1 to 28 A head-up display (HUD) assembly structure includes a HUD body 1, a PGU mounting structure 2, a mirror drive control structure 3, a housing 4, and a shielding film 5. The PGU mounting structure 2, the mirror drive control structure 3, and the housing 4 are respectively disposed at predetermined positions on the HUD body 1. The shielding film 5 is disposed on the housing 4. The PGU mounting structure 2 includes a PGU device 21 for generating and projecting images. The mirror drive control structure 3 includes a mirror 31, which is adjustablely disposed on the HUD body 1 for reflecting images. The shielding film 5 prevents dust and / or sunlight from entering the interior of the HUD body 1. PGU stands for Picture Generation Unit; HUD stands for Head-Up Display; the HUD body can also be called the "HUD base shell"; and "a head-up display assembly structure" can also be called a "HUD assembly structure".

[0077] Reference Figures 1 to 28 In one embodiment, the HUD body 1 is a plastic shell.

[0078] Reference Figures 1 to 28 In one embodiment, the PGU mounting structure 2 further includes a mounting base 22 and a heat sink 23; the PGU device 21 is disposed on the mounting base 22; the mounting base 22 is provided with a positioning connection part 221; the mounting base 22 is connected to the HUD body 1 through the positioning connection part 221; the heat sink 23 is disposed on the HUD body 1 and is connected to the PGU device 21.

[0079] Reference Figures 1 to 28 In one embodiment, the mounting base 22 is a mounting bracket with a hollowed-out groove 222; the PGU device 21 is disposed on the mounting bracket.

[0080] Reference Figures 1 to 28 In one embodiment, a connecting plate 223 is provided on the side of the mounting bracket; the positioning connecting part 221 is provided on the connecting plate 223.

[0081] Reference Figures 1 to 28 In one embodiment, the PGU mounting structure 2 further includes a connecting post 24; the connecting post 24 is disposed on the HUD body 1; the connecting post 24 has a first threaded hole 241;

[0082] The heat sink 23 is provided with a first connecting hole 2311; the first connecting hole 2311 of the heat sink 23 is connected to the first threaded hole 241 through a first fastener 61. Preferably, the first fastener 61 is a screw.

[0083] Reference Figures 1 to 28 In one embodiment, the inner wall of the hollow groove 222 is provided with a guide positioning rail 224 (formed by two baffles G maintaining a set distance); the PGU device 21 includes a PGU assembly 211; the PGU assembly 211 has a connecting protrusion A; the PGU assembly 211 is connected to the guide positioning rail 224 through the connecting protrusion A. The guide positioning rail 224 serves to limit the PGU assembly 211, which helps improve the stability of the PGU assembly 211 after installation.

[0084] Reference Figures 1 to 28In one embodiment, the PGU assembly 211 includes a first PGU plate 2111 and a second PGU plate 2112; both the first PGU plate 2111 and the second PGU plate 2112 are provided with the connecting protrusion A; the first PGU plate 2111 and the second PGU plate 2112 are sequentially placed in the hollowed-out groove 222, wherein the connecting protrusion A is connected to the guide positioning rail 224; the first PGU plate 2111 and the second PGU plate 2112 are mainly used to generate and project images in the head-up display (HUD) system.

[0085] Reference Figures 1 to 28 In one embodiment, the PGU device 21 further includes a first functional component 212; the first functional component 212 is provided with a first through hole C and a second through hole D;

[0086] The PGU assembly 211 is provided with a connecting protrusion B; specifically, the second PGU plate 2112 is provided with a connecting protrusion B.

[0087] The mounting bracket is provided with a positioning protrusion 225; preferably, the positioning protrusion 225 is a positioning post.

[0088] The PGU component 211 and the first functional component 212 are both mounted on the mounting bracket; wherein the first through hole C is fitted with the connecting protrusion B, and the second through hole D is fitted with the positioning protrusion 225.

[0089] Reference Figures 1 to 28 In one embodiment, the first functional component 212 includes an LED board 2121 and LED beads 2122; a plurality of LED beads 2122 are disposed on the LED board 2121; the first functional component 212 is mainly used to provide a backlight source to support image generation and display. The LED board 2121 is provided with a first through hole C and a second through hole D.

[0090] Reference Figures 1 to 28 In one embodiment, the first through hole C is provided in two places: the first through hole is a round hole and the second through hole is an oval hole.

[0091] Reference Figures 1 to 28 In one embodiment, the second through hole D is provided in two locations, and both of the second through holes are circular holes.

[0092] Reference Figures 1 to 28In one embodiment, the positioning protrusion 225 has a second threaded hole H; the heat sink 23 is provided with a second connecting hole 2312; the second connecting hole 2312 of the heat sink 23 is connected to the second threaded hole H through a second fastener 62. Preferably, the second fastener 62 is a screw.

[0093] Reference Figures 1 to 28 In one embodiment, the heat sink 23 includes a heat sink cover 231 and heat sink partitions 232. The heat sink cover 231 is provided with a first connecting hole 2311 and a second connecting hole 2312. A plurality of heat sink partitions 232 are arranged on the heat sink cover 231 with a set spacing between them, and the heat sink partitions 232 are arranged to avoid the second connecting hole 2312. After the heat sink 23 is installed on the HUD body 1, one side of the heat sink cover 231 is in contact with the first functional component 212. The heat sink 23 is used for heat dissipation. Specifically, the heat generated by the first functional component 212 can be conducted to the heat sink partitions 232 through the heat sink cover 231 and dissipated. When the heat sink 23 is installed and fixed, the second connecting hole 2312 is first connected to the second threaded hole H with a second fastener 62 (such as a screw), and then the first connecting hole 2311 is connected to the first threaded hole 241 with a first fastener 61 (such as a screw).

[0094] Reference Figures 1 to 28 Preferably, the second screw hole H is provided in two places, and the second connecting hole 2312 is provided in two places accordingly; the first threaded hole 241 is provided in four places, and the first connecting hole 2311 is provided in four places accordingly.

[0095] Reference Figures 1 to 28 Preferably, the heat sink 23 is further provided with a recessed groove 2313 (note: not a through hole) for fitting with the connecting protrusion B (but a groove of a set depth); specifically, the recessed groove 2313 is provided on the heat sink cover 231. The recessed groove 2313 helps to improve the stability of the second PGU board 2112 after installation.

[0096] Reference Figures 1 to 28 Preferably, the flatness accuracy of the side of the heat dissipation cover 231 that contacts the first functional component 212 is controlled within 0.05mm. This design is beneficial for stably positioning the PGU device 21 in the mounting base 22.

[0097] Reference Figures 1 to 28 In one embodiment, the positioning connection part 221 includes a first hole E and a second hole F; the mounting base 22 is connected to the HUD body 1 through the first hole E and the second hole F.

[0098] Reference Figures 1 to 28 In one embodiment, the PGU mounting structure 2 further includes a positioning post 25; the positioning post 25 is disposed on the HUD body 1; the first hole E and the second hole F are respectively connected to the positioning post 25. Preferably, the HUD body 1 is provided with a seat groove 11; the mounting base 22 is embedded in the seat groove 11, and the first hole E and the second hole F are respectively connected to the positioning post 25 on the HUD body 1.

[0099] Reference Figures 1 to 28 In one embodiment, the first hole E is a circular hole; the second hole F is an oblong hole. The positioning post 25 is connected to the first hole E, and the single-sided error between the positioning post 25 and the first hole E is ±0.025mm. The diameter tolerance of the positioning post 25 after assembly with the first hole E is ±0.05mm. Since the PGU device 21 is mounted on the mounting base 22, considering the tolerances, the maximum positional deviation of the PGU device 21 is 0.05mm, and the maximum horizontal angle deviation of the PGU device 21 is 0.06°.

[0100] Reference Figures 1 to 28 In one embodiment, the rotating mirror transmission control structure 3 further includes a driving device 32 and an elastic adjustment member 33; the elastic adjustment member 33 is disposed on the driving device 32; the driving device 32 is disposed on the HUD body 1, and the elastic adjustment member 33 is connected to the HUD body 1; the rotating mirror 31 is disposed on the HUD body 1, and the rotating mirror 31 is (transmission) connected to the driving device 32, and the elastic adjustment member 33 is used to adjust the (transmission) connection between the driving device 32 and the rotating mirror 31 in a timely manner.

[0101] Reference Figures 1 to 28 In one embodiment, the drive device 32 includes a power device 321, a bracket 322, and a transmission part 323; the power device 321 and the transmission part 323 are both disposed on the bracket 322, the power device 321 is connected to the transmission part 323 and is used to drive the transmission part 323 to rotate; the bracket 322 is disposed on the HUD body 1.

[0102] Reference Figures 1 to 28 In one embodiment, the power unit 321 is a motor; the transmission part 323 is a worm gear; both the motor and the worm gear are mounted on the bracket 322; the motor and the worm gear are connected by a transmission. The rotating mirror 31 is connected by a transmission to the worm gear. When the angle of the rotating mirror 31 needs to be adjusted, the motor drives the worm gear to rotate according to a preset number of steps, achieving precise adjustment of the rotating mirror 31's angle through precise transmission.

[0103] Reference Figures 1 to 28In one embodiment, the motor is detachably fixed to the bracket 322; preferably, the motor is locked to the bracket 322 by a third fastener 63 (such as a screw), wherein the rotating part (such as a rotating shaft) of the motor is connected to the transmission part 323 (such as a worm gear).

[0104] Reference Figures 1 to 28 In one embodiment, the bracket 322 is provided with a bracket groove K for accommodating the transmission part 323 (such as a worm gear).

[0105] Reference Figures 1 to 28 In one embodiment, the rotating mirror transmission control structure 3 further includes a first slot structure 34; the first slot structure 34 is disposed on the HUD body 1;

[0106] The bracket 322 is provided with a side protrusion 3221; the bracket 322 is connected to the first slot structure 34 through the side protrusion 3221.

[0107] Reference Figures 1 to 28 In one embodiment, both the left and right ends of the side protrusion 3221 are rounded portions M.

[0108] Reference Figures 1 to 28 In one embodiment, one end R of the elastic adjustment member 33 is disposed in the bracket 322 (e.g., one end is inserted into the bracket 322), and the other end S can be connected to (e.g., abut against) a set position of the HUD body 1. With the presence of this elastic adjustment member 33, after the bracket 322 is installed on the HUD body 1, the bracket 322 can slightly float in the axial direction (up and down) (see reference). Figure 18 (The axial direction L and the vertical floating direction N are shown in the diagram). When the meshing connection between the worm and the rotating mirror 31 has a gap due to machining error or wear, the elastic force of the elastic adjusting member 33 will cause the worm and the rotating mirror 31 to mesh tightly (that is, under the action of the elastic force of the elastic adjusting member 33, the excess gap between the meshing connection between the worm and the rotating mirror 31 is eliminated), thereby improving the accuracy and stability of the meshing connection.

[0109] Reference Figure 17 In one embodiment, the elastic adjusting member 33 is a bent spring sheet.

[0110] Reference Figures 1 to 28In one embodiment, the rotating mirror 31 is provided with a rotating mirror gear 311, which is connected to the transmission part 323. Preferably, the power device 321 is a motor, the transmission part 323 is a worm gear, the motor is connected to the worm gear, and the rotating mirror gear 311 is meshed with the worm gear. After the drive device 32, the elastic adjustment member 33 and the rotating mirror 31 are installed, the elastic adjustment member 33 continuously applies an upward preload to ensure that the worm gear and the rotating mirror gear 311 are tightly meshed. When the motor drives the worm gear to rotate, the worm gear drives the rotating mirror 31 to move, thereby realizing the angle adjustment of the rotating mirror 31.

[0111] Reference Figures 1 to 28 In one embodiment, the first slot structure 34 is adapted to the side protrusion 3221; the bracket 322 is connected to the first slot structure 34 on the HUD body 1 by means of the side protrusion 3221, replacing the traditional screw fixing. During installation, simply insert the bracket 322 into the lower HUD body 1 at a set angle, and the side protrusion 3221 is inserted into the first slot structure 34 accordingly (see reference). Figure 22 After that, the bracket 322 is leveled, thus fixing the bracket 322 onto the HUD body 1. Once connected, the side protrusion 3221 can serve as a fulcrum. When appropriate, under the elastic force of the elastic adjustment member 33, the bracket 322 can be slightly adjusted around this fulcrum (the position of the worm gear in the bracket 322 is also slightly adjusted), thereby ensuring a tight meshing between the worm gear and the rotating mirror gear 311.

[0112] Reference Figures 1 to 28 In one embodiment, the rotating mirror drive control structure 3 further includes a limit switch 35; the limit switch 35 is disposed on the bracket 322; the rotating mirror 31 is provided with a touch structure 312; the touch structure 312 is used to trigger the limit switch 35. Preferably, the limit switch 35 and the motor are electrically connected to the controller of the head-up display system and are controlled by the controller.

[0113] The touch structure 312 and the limit switch 35 can be used to calibrate a reference. During the calibration phase, the rotating mirror 31 moves under the drive of the worm gear. Then, the touch structure 312 switches to trigger the limit switch 35, the motor stops rotating and calibrates the origin, and the initial position of the rotating mirror 31 is determined to ensure the accuracy of subsequent angle adjustments of the rotating mirror 31.

[0114] The touch structure 312 and the limit switch 35 can be used for mechanical position protection. If the rotating mirror 31 abnormally touches the limit switch 35 during the non-calibration stage, the limit switch 35 will detect the extreme position of the rotating mirror 31. When appropriate, the limit switch 35 will transmit the detected information to the controller, and the controller will control the motor to stop running, which can prevent mechanical damage caused by the rotating mirror 31 moving beyond the limit.

[0115] Reference Figure 20 In one embodiment, the touch structure 312 is a protrusion on the rotating mirror 31, and the protrusion is positioned adjacent to the rotating mirror gear 311.

[0116] Reference Figures 1 to 28 In one embodiment, the limit switch 35 is detachably mounted on the bracket 322; preferably, the bracket 322 is provided with a placement area 3222, and the limit switch 35 is locked and fixed on the placement area 3222 by a fourth fastener 64 (such as a screw).

[0117] Reference Figures 1 to 28 In one embodiment, the rotating mirror transmission control structure 3 further includes a second slot structure 36; the second slot structure 36 is disposed on the HUD body 1;

[0118] The rotating mirror 31 has a connecting shaft 313 on its side; the rotating mirror 31 is connected to the second slot structure 36 through the connecting shaft 313.

[0119] Reference Figure 20 Preferably, the rotating mirror 31 is an integrated large reflecting mirror that combines the rotating mirror gear 311, the contact structure 312, and the connecting shaft 313.

[0120] Reference Figures 1 to 28 In one embodiment, a limiting component is detachably provided on the second slot structure 36; the limiting component includes a limiting piece 37 and a fifth fastener 65; the limiting piece 37 is disposed on the second slot structure 36 via the fifth fastener 65 (such as a screw), and limits the connecting shaft 313 in the second slot structure 36, which can effectively prevent the connecting shaft 313 from coming out of the second slot structure 36 and improve the stability of the rotating mirror 31 during the angle adjustment process.

[0121] In one embodiment, a polarizer is integrated onto the shielding film 5. Preferably, the polarizer is an absorptive polarizer used to prevent sunlight backflow.

[0122] In one embodiment, the assembly structure further includes a light shield (not shown in the figures); the light shield is disposed on the HUD body 1 and is used to prevent stray light.

[0123] Reference Figure 25 In one embodiment, the assembly structure further includes a fixed mirror 7 (small reflector); the fixed mirror 7 is disposed on the sunshade for reflecting images. Preferably, the fixed mirror 7 is provided with a cooling film to prevent sunlight backflow.

[0124] In one embodiment, the fixed lens 7 is glued to the light shield. This design can eliminate the need for traditional lens brackets, bearings, and other parts, which is beneficial for achieving a lightweight HUD assembly structure.

[0125] Reference Figures 1 to 28 In one embodiment, the head-up display assembly structure of the present invention has at least the following advantages:

[0126] (1) The design of the HUD body 1 being a plastic shell and the fixed lens 7 being glued and fixed on the light shield reduces the structural weight of the HUD assembly.

[0127] (2) The PGU device 21 is fixed to the HUD body 1 by the mounting base 22, which improves the stability of the PGU device 21 after installation and is conducive to the stability of imaging.

[0128] (3) The heat sink 23 is conducive to the heat dissipation of the PGU device 21. At the same time, it has a limiting effect on the PGU device 21, which improves the stability of the PGU device 21 after installation.

[0129] (4) In this utility model, one end R of the elastic adjustment member 33 (such as a bent spring) is inserted into the bottom of the bracket 322, and the other end S is connected to the HUD body 1 (such as abutting). After the elastic adjustment member 33, bracket 322, worm gear, motor and rotating mirror 31 are installed, the elastic adjustment member 33 continuously applies an upward preload, which can keep the worm gear and rotating mirror gear 311 tightly meshed. This design can reduce transmission backlash and improve the control accuracy of the angle adjustment of rotating mirror 31.

[0130] (5) The bracket 322 of this utility model is designed with side protrusions 3221 on both sides, which can realize the screwless fixing of the bracket 322, effectively simplifying the installation process of the bracket 322 and saving assembly time; at the same time, this design, combined with the use of the elastic adjustment component 33, can ensure that the bracket 322 has room for up and down floating adjustment along the axial direction L, and ensure that the worm and the rotating mirror gear 311 can be tightly meshed under the action of the elastic force of the elastic adjustment component 33, effectively avoiding excessive meshing gap between the worm and the rotating mirror gear 311.

[0131] (6) The "motor, worm gear, elastic adjustment component 33, limit switch 35" of this utility model are integrated on the bracket 322, which can form a modular component with the bracket 322. It can be connected to the HUD body 1 through a standardized interface (such as the first slot structure 34), which can be adapted to the rotating mirror system of different models of HUD, and there is no need to redesign the installation position of the limit switch 35.

[0132] The "motor, worm gear, elastic adjustment component 33, limit switch 35" of this utility model are integrated on the bracket 322, which can form a modular component with the bracket 322. It can be directly assembled with the bracket 322 onto different HUD bodies 1 (the HUD body refers to the HUD body 1 with the first slot structure 34), which improves the versatility of the component and facilitates mass production and maintenance.

[0133] (7) The shielding film 5 integrates an absorptive polarizer and the fixed lens 7 is equipped with a cold film. This design helps to prevent sunlight backflow and improves the image projection quality of the HUD assembly structure.

[0134] In this patent, the head-up display system can be simply referred to as "head-up display". Other details regarding the head-up display system can be found in the prior art and will not be repeated here.

[0135] Other aspects of the head-up display assembly structure described in this utility model can be found in the prior art, and will not be repeated here.

[0136] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A head-up display assembly structure, characterized in that, The device includes a HUD main body, a PGU mounting structure, a rotating mirror transmission control structure, a housing cover, and a shielding film. The PGU mounting structure, the rotating mirror transmission control structure, and the housing cover are respectively disposed at predetermined positions on the HUD main body. The shielding film is disposed on the housing cover. The PGU mounting structure includes a PGU device for generating and projecting images. The rotating mirror transmission control structure includes a rotating mirror, which is adjustablely disposed on the HUD main body for reflecting images.

2. The head-up display assembly structure of claim 1, wherein The PGU mounting structure further includes a mounting base and a heat sink; the PGU device is mounted on the mounting base; the mounting base is provided with a positioning connection part; the mounting base is connected to the HUD body through the positioning connection part; the heat sink is mounted on the HUD body and is connected to the PGU device.

3. The head-up display assembly of claim 1, wherein: The rotating mirror transmission control structure further includes a driving device and an elastic adjustment component; the elastic adjustment component is disposed on the driving device; the driving device is disposed on the HUD body, and the elastic adjustment component is connected to the HUD body; the rotating mirror is disposed on the HUD body, and the rotating mirror is connected to the driving device, and the elastic adjustment component is used to adjust the connection between the driving device and the rotating mirror in a timely manner.

4. The head-up display assembly of claim 3, wherein the at least one optical element is a prism. The driving device includes a power unit, a bracket, and a transmission unit; the power unit and the transmission unit are both mounted on the bracket, and the power unit is connected to the transmission unit to drive the transmission unit to rotate; the bracket is mounted on the HUD body; the rotating mirror is provided with a rotating mirror gear, and the rotating mirror gear is connected to the transmission unit for transmission.

5. The head-up display assembly of claim 4, wherein the at least one optical element is a prism. The rotating mirror transmission control structure also includes a limit switch; the limit switch is disposed on the bracket. The rotating mirror is equipped with a touch structure; the touch structure is used to trigger the limit switch.

6. The head-up display assembly of claim 1, wherein: The shielding film has a polarizing filter integrated on it.

7. The head-up display assembly of claim 1, wherein: The assembly structure also includes a light shield; the light shield is disposed on the HUD body.

8. The head-up display assembly of claim 7, wherein the at least one optical element is a prism. The assembly structure also includes a fixed lens; the fixed lens is disposed on the light shield and is used to reflect the image.

9. The head-up display assembly of claim 8, wherein the at least one optical element is a prism. The fixed lens is attached and fixed to the light shield.

10. The head-up display assembly of any one of claims 1-9, wherein: The HUD body is a plastic shell.

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