Head-up display assembly and vehicle

Abstract

The utility model discloses a head-up display assembly and a vehicle, the head-up display assembly comprises a housing, a mirror body assembly and a driving assembly, the mirror body assembly is rotatably connected with the housing, the mirror body assembly comprises a mirror main body and a transmission part arranged on the mirror main body, and the driving part is rotatably connected with the mirror main body. The driving assembly is in transmission connection with the transmission part, and the driving assembly can drive the transmission part to move so as to drive the mirror body to rotate on the shell. The vehicle comprises the head-up display assembly. According to the utility model, tolerance accumulation can be reduced, cooperation precision and imaging precision can be improved, noise can be reduced, and user experience can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a head-up display, concretely relates to a head-up display assembly and vehicle. BACKGROUND

[0002] The vehicle-mounted head-up display can project the driving information (such as speed, endurance mileage) of the vehicle, navigation information (such as the remaining time and mileage of the journey) and intelligent driving information (such as the intelligent driving state and early warning) on the road surface in front of the vehicle, so that the driver can perceive the driving information without adjusting the field of view, greatly improving the safety and comfort of driving. Different heights of the driver's field of view make the head-up display need to be able to adjust the height of the display screen.

[0003] In the prior art, the display screen height adjustment is realized by the rotation of the curved mirror in the head-up display, but the existing head-up display transmission structure has high complexity, is often assembled by multiple mold parts, has a large volume, and has a high risk of interference with the surrounding parts during the installation and arrangement of the head-up display assembly product on the vehicle, is not conducive to the data arrangement of the large-size concave mirror, and limits the display frame. The cumulative tolerance between the multiple mold parts causes poor docking precision of the transmission mechanism, the curved mirror is prone to shift and generate noise during rotation, the imaging precision is insufficient, and the user experience is affected. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model aims at providing a head-up display assembly and vehicle, which can reduce the cumulative tolerance, improve the matching precision and imaging precision, reduce noise, and improve the user experience.

[0005] The head-up display assembly in the utility model comprises a shell, a mirror body assembly and a driving assembly, the mirror body assembly is rotationally connected with the shell, the mirror body assembly comprises a mirror main body and a transmission part arranged on the mirror main body, the driving assembly is in transmission connection with the transmission part, and the driving assembly can drive the transmission part to move to drive the mirror main body to rotate on the shell.

[0006] Further, the edge of the mirror main body is provided with a boss protruding downward, and the transmission part is a fan-shaped tooth arranged on the boss.

[0007] Further, the mirror body assembly further comprises a left rotating shaft part and a right rotating shaft part arranged on the left side and the right side of the mirror main body respectively, the shell is provided with two rotating shaft mounting holes, and the left rotating shaft part and the right rotating shaft part are rotationally matched with the corresponding rotating shaft mounting holes respectively.

[0008] Further, the mirror main body, the transmission part, the left rotating shaft part and the right rotating shaft part are integrally injection molded.

[0009] Further, the mirror body comprises a curved mirror, an upper turning edge arranged on the upper side of the curved mirror, a lower turning edge arranged on the lower side of the curved mirror, a right turning edge arranged on the right side of the curved mirror, and a left turning edge arranged on the left side of the curved mirror.

[0010] Further, the left turning edge extends downward to the lower side of the lower turning edge, the left side of the lower turning edge is provided with a first turning edge extending downward, the lower part of the left turning edge is connected with the first turning edge through a second turning edge, and the lower part of the left turning edge, the first turning edge and the second turning edge form the boss.

[0011] Further, the left turning shaft part is arranged on the left turning edge, the right turning shaft part is arranged on the right turning edge, and the left and right sides of the left turning edge and the left and right sides of the right turning edge are all provided with a reinforcing rib structure.

[0012] Further, the driving assembly comprises a driving element, a worm, a bracket and an anti-backlash spring plate, the output shaft of the driving element is connected with the worm, the worm is engaged with the sector gear, the driving element is fixedly connected with the bracket, the worm is movably arranged on the bracket, and the anti-backlash spring plate is used for eliminating the meshing gap between the worm and the sector gear.

[0013] Further, the anti-backlash spring plate comprises a supporting part, a connecting part, a radial spring part and an axial spring part, the supporting part and the connecting part form an L-shaped structure, the connecting part is fixedly connected with the bracket, and the connecting part and the driving element are located at different sides of the worm respectively; the axial spring part is arranged at the middle part of the connecting part, and the axial spring part abuts against the end part of the worm; the supporting part provides support for the bracket, the upper end of the radial spring part is connected with the supporting part, and the lower end of the radial spring part abuts against the shell.

[0014] The vehicle in the utility model comprises the head-up display assembly.

[0015] The utility model has the advantages of:

[0016] (1) The transmission part is arranged on the mirror body, so that the number of parts of the transmission structure is reduced, the number of molds during machining is reduced, tolerance accumulation is reduced, the cooperation precision and imaging precision are improved, noise is reduced, and user experience is improved.

[0017] (2) The structure of the utility model is compact, the mirror body with a larger size can be realized under the premise of the same shell size, the size of the reflecting mirror surface is larger, and a larger image can be displayed.

[0018] (3) The axial spring piece part and the radial spring piece part of the anti-backlash spring piece eliminate the meshing tooth gap between the worm and the sector gear, thereby ensuring the meshing reliability of the worm and the sector gear support, preventing the up-and-down and axial movement of the worm rotation, effectively reducing the noise, making the movement of the mirror body more stable, and effectively improving the precision and quality of image display. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the purpose, technical scheme and beneficial effects of the utility model more clear, the utility model provides the following drawings for description:

[0020] Figure 1 It is the explosion structure schematic view of the utility model;

[0021] Figure 2 It is the explosion structure schematic view of the mirror body assembly and the driving assembly of the utility model;

[0022] Figure 3 It is the explosion structure schematic view of the mirror body assembly and the driving assembly of the utility model;

[0023] Figure 4 It is the structure schematic view of the mirror body assembly of the utility model;

[0024] Figure 5 It is the structure schematic view of the driving assembly of the utility model.

[0025] The signs in the drawings are as follows:

[0026] 1 - shell, 11 - rotating shaft mounting hole;

[0027] 2 - mirror body assembly, 21 - mirror body, 211 - curved mirror, 212 - upper turning edge, 213 - lower turning edge, 214 - right turning edge, 215 - left turning edge, 216 - first turning edge, 217 - second turning edge, 218 - reinforcing rib structure, 22 - transmission part, 23 - left rotating shaft part, 24 - right rotating shaft part;

[0028] 3 - driving assembly, 31 - driving element, 32 - worm, 33 - support, 34 - anti-backlash spring piece, 341 - supporting part, 342 - connecting part, 343 - radial spring piece part, 344 - axial spring piece part. DETAILED DESCRIPTION

[0029] The technical scheme of the utility model will be described in detail in combination with the drawings and embodiments.

[0030] As Figures 1-5As shown, the head-up display assembly in the embodiment includes a housing 1, a mirror assembly 2 and a driving assembly 3, the mirror assembly 2 is rotationally connected with the housing 1, the mirror assembly 2 includes a mirror main body 21 and a transmission part 22 arranged on the mirror main body 21, the driving assembly 3 is in transmission connection with the transmission part 22, and the driving assembly 3 can drive the transmission part 22 to move to drive the mirror main body 21 to rotate on the housing 1.

[0031] By arranging the transmission part 22 on the mirror main body 21, the number of parts of the transmission structure can be reduced, the number of molds during processing can be reduced, and the tolerance accumulation is reduced, which is beneficial to improve the matching precision and imaging precision, and can also reduce the noise, thereby improving the user experience.

[0032] In the embodiment, a boss protruding downward is arranged at the edge of the mirror main body 21, and the transmission part 22 is a fan-shaped tooth arranged on the boss. Through the boss structure, the space occupation of the transmission part 22 in the left-right direction is made, so that the structure is more compact, and a mirror main body 21 with a larger size is realized under the premise of the same size of the housing 1, the size of the reflector is larger, and a larger image can be displayed.

[0033] In the embodiment, the mirror assembly 2 further includes a left rotating shaft part 23 and a right rotating shaft part 24 arranged respectively on the left and right sides of the mirror main body 21, and the housing 1 is provided with two rotating shaft mounting holes 11, and the left rotating shaft part 23 and the right rotating shaft part 24 are respectively in rotational fit with the corresponding rotating shaft mounting holes 11.

[0034] In the embodiment, the mirror main body 21, the transmission part 22, the left rotating shaft part 23 and the right rotating shaft part 24 are integrally injection molded. Integrally injection molding can reduce the number of molds, reduce the cost, further reduce the number of parts of the transmission structure, further reduce the number of molds during processing, and further reduce the tolerance accumulation between different parts, which is beneficial to further improve the matching precision and imaging precision, and can also reduce the noise, thereby improving the user experience.

[0035] In the embodiment, the mirror main body 21 includes a curved mirror 211, an upper turning edge 212 arranged on the upper side of the curved mirror 211, a lower turning edge 213 arranged on the lower side of the curved mirror 211, a right turning edge 214 arranged on the right side of the curved mirror 211, and a left turning edge 215 arranged on the left side of the curved mirror 211. The curved mirror 211 includes a high polymer body and a coated reflector arranged on the front side of the high polymer body, and the high polymer can be plastic.

[0036] In the embodiment, the left turning edge 215 extends downward to the lower side of the lower turning edge 213, the left side of the lower turning edge 213 is provided with a downward extending first turning edge 216, the lower part of the left turning edge 215 is connected with the first turning edge 216 through a second turning edge 217, and the lower part of the left turning edge 215, the first turning edge 216 and the second turning edge 217 form the boss. The left turning edge 215, the first turning edge 216 and the second turning edge 217 provide support for the second turning edge 217, so as to ensure that sufficient support strength can be provided for the fan-shaped teeth.

[0037] In the embodiment, the left rotating shaft part 23 is arranged on the left turning edge 215, the right rotating shaft part 24 is arranged on the right turning edge 214, and the left and right sides of the left turning edge 215 and the left and right sides of the right turning edge 214 are provided with reinforcing rib structures 218. The reinforcing rib structures 218 can prevent deformation of each turning edge.

[0038] In the embodiment, the driving assembly 3 comprises a driving element 31, a worm 32, a bracket 33 and an anti-backlash spring 34. The output shaft of the driving element 31 is connected with the worm 32, the worm 32 is engaged with the fan-shaped teeth, the driving element 31 is fixedly connected with the bracket 33, the worm 32 is movably mounted on the bracket 33, and the anti-backlash spring 34 is used to eliminate the meshing tooth gap between the worm 32 and the fan-shaped teeth. The worm 32 and the fan-shaped teeth form a worm and gear transmission mechanism, the driving element 31 is a motor, the axis of the worm 32 is along the front and back directions, the worm 32 is driven to rotate by the output shaft of the driving element 31, the fan-shaped teeth are driven to rotate, and thus the mirror main body 21 can be driven to rotate on the shell 1.

[0039] The anti-backlash spring 34 comprises a supporting part 341, a connecting part 342, a radial spring part 343 and an axial spring part 344, the supporting part 341 and the connecting part 342 form an "L" shaped structure, the connecting part 342 is fixedly connected with the bracket 33, and the connecting part 342 and the driving element 31 are located at different sides of the worm 32 respectively; the axial spring part 344 is arranged at the middle part of the connecting part 342, and the axial spring part 344 abuts against the end part of the worm 32; the supporting part 341 provides support for the bracket 33, the upper end of the radial spring part 343 is connected with the supporting part 341, and the lower end of the radial spring part 343 abuts against the housing 1. The axial spring part 344 of the anti-backlash spring 34 can provide the worm 32 with an axial elastic force in the direction of the driving element 31, the radial spring part 343 of the anti-backlash spring 34 can provide the bracket 33 with an upward radial elastic force, and the driving element 31 and the worm 32 are both mounted on the bracket 33, so that the axial spring part 344 and the radial spring part 343 can eliminate the meshing tooth gap between the worm 32 and the sector tooth, thereby ensuring the meshing reliability of the worm 32 and the sector tooth bracket 33, preventing the worm 32 from moving up and down and axially when rotating, effectively reducing noise, making the movement of the mirror body 21 more stable, and effectively improving the precision and quality of image display.

[0040] The vehicle of the embodiment comprises the head-up display assembly.

[0041] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A head-up display assembly, characterized by: The application relates to a mirror body assembly and a driving assembly, which comprise a shell (1), a mirror body assembly (2) and a driving assembly (3), the mirror body assembly (2) is rotationally connected with the shell (1), the mirror body assembly (2) comprises a mirror main body (21) and a transmission part (22) arranged on the mirror main body (21), the driving assembly (3) is in transmission connection with the transmission part (22), and the driving assembly (3) can drive the transmission part (22) to move so as to drive the mirror main body (21) to rotate on the shell (1).

2. The head-up display assembly of claim 1, wherein: A boss protruding downward is arranged at the edge of the mirror main body (21), and the transmission part (22) is a fan-shaped tooth arranged on the boss.

3. The head-up display assembly of claim 2, wherein: The mirror body assembly (2) further comprises a left rotating shaft part (23) and a right rotating shaft part (24) arranged on the left and right sides of the mirror main body (21) respectively, two rotating shaft mounting holes (11) are arranged on the shell (1), and the left rotating shaft part (23) and the right rotating shaft part (24) are rotationally matched with the corresponding rotating shaft mounting holes (11) respectively.

4. The heads-up display assembly of claim 3, wherein: The mirror main body (21), the transmission part (22), the left rotating shaft part (23) and the right rotating shaft part (24) are integrally injection molded.

5. The heads-up display assembly of claim 4, wherein: The mirror main body (21) comprises a curved mirror (211), an upper turning edge (212) arranged on the upper side of the curved mirror (211), a lower turning edge (213) arranged on the lower side of the curved mirror (211), a right turning edge (214) arranged on the right side of the curved mirror (211) and a left turning edge (215) arranged on the left side of the curved mirror (211).

6. The head-up display assembly of claim 5, wherein: The left turning edge (215) extends downward to the lower side of the lower turning edge (213), the left side of the lower turning edge (213) is provided with a first turning edge (216) extending downward, the lower part of the left turning edge (215) is connected with the first turning edge (216) through a second turning edge (217), and the lower part of the left turning edge (215), the first turning edge (216) and the second turning edge (217) form the boss.

7. The head-up display assembly of claim 5, wherein: The left rotating shaft part (23) is arranged on the left turning edge (215), the right rotating shaft part (24) is arranged on the right turning edge (214), and the left and right sides of the left turning edge (215) and the left and right sides of the right turning edge (214) are provided with reinforcing rib structures (218).

8. The heads-up display assembly of claim 2, wherein: The driving assembly (3) comprises a driving element (31), a worm (32), a bracket (33) and an anti-backlash spring (34), the output shaft of the driving element (31) is connected with the worm (32), the worm (32) is in meshing connection with the fan-shaped tooth, the driving element (31) is fixedly connected with the bracket (33), the worm (32) is movably mounted on the bracket (33), and the anti-backlash spring (34) is used for eliminating the meshing gap between the worm (32) and the fan-shaped tooth.

9. The head-up display assembly of claim 8, wherein: The anti-backlash spring piece (34) comprises a supporting part (341), a connecting part (342), a radial spring part (343) and an axial spring part (344), the supporting part (341) and the connecting part (342) form an "L" shaped structure, the connecting part (342) is fixedly connected with the bracket (33), and the connecting part (342) and the driving element (31) are respectively located at different sides of the worm (32); the axial spring part (344) is arranged at the middle part of the connecting part (342), and the axial spring part (344) abuts against the end part of the worm (32); the supporting part (341) provides support for the bracket (33), the upper end of the radial spring part (343) is connected with the supporting part (341), and the lower end of the radial spring part (343) abuts against the shell (1).

10. A vehicle characterized by: An HMD assembly comprising the HMD assembly of any one of claims 1-9.

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