Reflector assembly of head-up display device, head-up display device and vehicle

Abstract

The utility model provides a reflector assembly of a head-up display device, the head-up display device and a vehicle, and relates to the technical field of head-up display. The reflecting mirror assembly of the head-up display device comprises a reflecting mirror structure and a base. A first rotating shaft and a second rotating shaft are formed at the two ends of the reflector structure respectively, the first rotating shaft and the second rotating shaft are coaxially arranged, the first rotating shaft is provided with a first ball head, and the second rotating shaft is provided with a second ball head; a spherical groove is formed in the base and matched with the first ball head, the base is concaved inwards in the first direction to form a connecting groove, the first direction is perpendicular to the axial direction of the first rotating shaft, the connecting groove is of a uniform-section structure in the axial direction of the first rotating shaft, and the length of the connecting groove in the second direction is gradually reduced in the first direction. The first direction is perpendicular to the axial direction of the first rotating shaft in pairs, and the inner surface of the connecting groove clamps the second ball head in the second direction. The reflector assembly of the head-up display device is used for reflecting projection light, and the image quality of the head-up display device can be improved.

Description

Technical Field

[0001] This application relates to the field of head-up display technology, and more particularly to a reflector assembly for a head-up display device, a head-up display device, and a vehicle. Background Technology

[0002] Head-up displays (HUDs) are used to project images of vehicle information (such as vehicle status, road conditions, and navigation) onto the windshield in front of the driver, allowing the driver to view the vehicle information without looking down. However, the image quality of HUDs in related technologies is poor. Utility Model Content

[0003] This application provides a reflector assembly for a head-up display device, a head-up display device, and a vehicle, which can improve the image quality of the head-up display device.

[0004] In a first aspect, this application provides a reflector assembly for a head-up display device, comprising a reflector structure and a base. The reflector structure has a first rotating shaft and a second rotating shaft formed at its two ends, respectively, and the first and second rotating shafts are coaxially arranged. The first rotating shaft has a first ball head, and the second rotating shaft has a second ball head. The base has a spherical groove that mates with the first ball head. A connecting groove is formed inwardly along a first direction, perpendicular to the axial direction of the first rotating shaft. Along the axial direction of the first rotating shaft, the connecting groove has a uniform cross-section. Along the first direction, the length of the connecting groove gradually decreases in a second direction. The second direction and the first direction are perpendicular to the axial direction of the first rotating shaft. The inner surface of the connecting groove clamps the second ball head along the second direction.

[0005] In this way, a first rotating shaft is formed at one end of the reflector structure, the first rotating shaft has a first ball head, and a spherical groove is formed on the base. The first ball head and the spherical groove are matched, and the matching of the first ball head and the spherical groove has a self-centering effect. Even if the first ball head and the spherical groove have a slightly high machining error, the first ball head can still be kept at the center position of the spherical groove with relatively high accuracy. The spherical groove has high positioning accuracy for the first ball head, and the machining error has little impact on the positioning accuracy. This is conducive to improving the installation accuracy of the reflector structure on the base, thereby improving the image quality of the head-up display device.

[0006] Furthermore, by forming a connecting groove in the base, and the connecting groove having a uniform cross-section along the axial direction of the first rotating shaft, the inner surface of the connecting groove clamps the second ball head along the second direction, making the contact area between the second ball head and the inner surface of the connecting groove slightly smaller. This results in less resistance generated by the inner surface of the connecting groove on the second ball head during its movement relative to the base, which helps to reduce wear between the inner surface of the connecting groove and the outer surface of the second ball head, and also helps to make the movement of the reflector structure relative to the base smoother.

[0007] Furthermore, by mate the first ball head with the spherical groove and the second ball head with the connecting groove to mount the reflector structure on the base, the bearing housing can be eliminated, thus reducing costs.

[0008] In conjunction with the first aspect, in some possible implementations, the outline of the connecting groove projected onto the first reference plane is an arc, the first reference plane is any plane perpendicular to the axis of the first rotating shaft, and the radius of the arc is the same as the radius of the second ball head.

[0009] By making the outline of the connecting groove in the orthographic projection of the first reference plane an arc, with the radius of the arc being the same as the radius of the second ball head, the contact area between the inner surface of the connecting groove and the second ball head is larger. This makes the installation of the second ball head in the connecting groove more stable, improves the positioning accuracy of the connecting groove for the second ball head, thereby improving the installation accuracy of the reflector structure on the base, and thus improving the image quality of the head-up display device.

[0010] In conjunction with the first aspect, in some possible implementations, along the axial direction of the first rotating shaft, the end of the connecting groove near the first rotating shaft passes through the base toward the first rotating shaft.

[0011] In this way, the position of the second ball head relative to the connecting groove can be adjusted along the axial direction of the first rotating shaft, which can compensate for the machining error of the connecting groove and the spherical groove in the axial direction of the first rotating shaft. This allows the second ball head to be smoothly installed into the connecting groove when the first ball head is installed into the spherical groove, which facilitates the assembly of the reflector structure and the base.

[0012] In conjunction with the first aspect, in some possible implementations, along the axial direction of the first rotating shaft, the surfaces on opposite sides of the first ball head abut against the inner surface of the spherical groove.

[0013] This design ensures that the spherical groove and the first ball head are mutually positioned along the axial direction of the first rotating axis, which helps to improve the stability of the mirror structure installation.

[0014] In conjunction with the first aspect, in some possible implementations, the orientation of the connecting groove is the same as that of the spherical groove.

[0015] In this way, the first ball head moves towards the spherical groove in the opposite direction of the spherical groove, so that during the process of inserting the first ball head into the spherical groove, the second ball head also moves towards the connecting groove in the opposite direction of the connecting groove, i.e., the first direction, and is inserted into the connecting groove. This makes the assembly of the reflector structure and the base more convenient.

[0016] In conjunction with the first aspect, in some possible implementations, the base includes a guide surface extending axially along the first rotating shaft, a connecting groove located on one side of the guide surface in a first direction, one end of the guide surface near the connecting groove engaging with the surface of the connecting groove on one side in a second direction, and the other end of the guide surface inclined in a direction away from the connecting groove along the second direction.

[0017] By setting a guide surface, if the second ball head and the connecting groove are offset in the second direction during the movement of the second ball head towards the connecting groove in the first direction, the guide surface can guide the second ball head to move to a position aligned with the connecting groove, thereby inserting it into the connecting groove, which helps to improve the ease of installation of the second ball head and the connecting groove.

[0018] In conjunction with the first aspect, in some possible implementations, the reflector assembly of the head-up display device further includes a first pressing member, which is detachably connected to the base, and is disposed opposite to the spherical groove. The surface of the first pressing member near the spherical groove abuts against the first ball head.

[0019] By positioning the first pressing member opposite to the spherical groove, the surface of the first pressing member near the spherical groove abuts against the first ball head, thereby confining the first ball head within the spherical groove and improving the stability of the installation between the first ball head and the spherical groove.

[0020] In conjunction with the first aspect, in some possible implementations, the reflector assembly of the head-up display device further includes a second pressing member, which is detachably connected to the base, is disposed opposite to the connecting groove, and abuts against the second ball head along the first direction.

[0021] By having the second pressing member abut against the second ball head in the first direction, the second pressing member restricts the second ball head within the connecting groove, which helps to improve the stability of the installation of the second ball head and the connecting groove.

[0022] In conjunction with the first aspect, in some possible implementations, the first pressing member is elastic along the direction in which the spherical groove is positioned opposite to the first pressing member.

[0023] In this way, during the rotation of the first ball head relative to the base around the axis of the first rotating shaft, the elastic deformation of the first pressing member can reduce the resistance of the first pressing member to the movement of the first ball head, which is beneficial to reducing the wear of the first ball head.

[0024] In conjunction with the first aspect, in some possible implementations, the second pressing member is elastic in a direction parallel to the first direction.

[0025] In this way, during the rotation of the second ball head relative to the base around the axis of the first rotating shaft, the elastic deformation of the second pressing member can reduce the resistance of the second pressing member to the movement of the second ball head, which is beneficial to reducing the wear of the second ball head.

[0026] Secondly, this application provides a head-up display device, which includes a reflector assembly of the head-up display device provided in the first aspect of this application and the above-described implementation.

[0027] The head-up display device provided in this application includes the reflector assembly of the head-up display device provided in the first aspect of this application and the above-described implementation, and can achieve the same effect, namely, improve the image quality of the head-up display device.

[0028] Thirdly, this application provides a vehicle that includes the head-up display device provided in the second aspect of this application.

[0029] The vehicle provided in this application includes the head-up display device provided in the second aspect of this application, which can achieve the same effect, namely, improve the image quality of the head-up display device. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of the reflector assembly of the head-up display device in the embodiments of this application;

[0032] Figure 2 This is an exploded view of the head-up display device in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the base structure in an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the connecting groove in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the spherical groove in the embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Reflector structure; 11. First rotating shaft; 111. First ball head; 12. Second rotating shaft; 121. Second ball head; 2. Base; 21. Spherical groove; 22. Connecting groove; 23. Mounting cavity; 231. Mounting port; 24. Guide surface; 25. First mounting hole; 26. First positioning post; 27. Second mounting hole; 28. Second positioning post; 3. First pressing member; 4. Second pressing member. Detailed Implementation

[0038] The technical solutions in this application will now be described clearly and in detail with reference to the accompanying drawings.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0040] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0041] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0042] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0043] Head-up displays (HUDs) are used to project images of vehicle information (such as vehicle status, road conditions, and navigation) onto the windshield in front of the driver, allowing the driver to view the vehicle information without looking down. However, the image quality of HUDs in related technologies is poor.

[0044] The following analysis explains the reasons for the poor image quality of head-up display devices in related technologies:

[0045] A head-up display (HUD) includes a light-emitting element and a reflector structure. The light-emitting element emits projection light, and the reflector structure reflects the projection light, altering its path so that it is projected onto the windshield to form an image. To adjust the image's position on the windshield, the reflector structure is often rotatably connected to a base, while the base and light-emitting element are relatively fixed. This allows for adjustment of the relative position of the reflector structure and the light-emitting element, thereby adjusting the path of the projection light and ultimately, the image's position on the windshield.

[0046] It is understandable that the installation accuracy of the reflector structure and the base affects the image quality. Poor installation accuracy can easily lead to difficulty in accurately controlling the relative position and orientation of the reflector structure and the light-emitting component, which can easily cause the angle between the reflector structure and the incident light to not meet the requirements, resulting in problems such as image distortion, dim image and blurry image.

[0047] In related technologies, the reflector has a connecting shaft, and the base includes a base body and a bearing seat. The bearing seat is detachably connected to the base body and has a connecting hole. The connecting shaft and the connecting hole are rotatably engaged so that the reflector is rotatably connected to the base. However, the connecting shaft and the connecting hole are prone to machining errors, which cause the connecting shaft to wobble radially relative to the connecting hole. The coaxiality of the connecting shaft and the connecting hole is poor, and the positioning accuracy of the connecting hole for the connecting shaft is poor, which in turn leads to poor image quality.

[0048] Therefore, in related technologies, the image quality of head-up display devices is relatively poor.

[0049] This application provides a vehicle, which can be of various types, such as a sedan, off-road vehicle, or sport utility vehicle (SUV).

[0050] Please refer to Figure 1 , Figure 2 and Figure 3The vehicle provided in this application includes a head-up display (HUD), which includes a reflector assembly. The reflector assembly includes a reflector structure 1 and a base 2. The reflector structure 1 has a first rotating shaft 11 and a second rotating shaft 12 formed at its two ends, respectively. The first rotating shaft 11 and the second rotating shaft 12 are coaxially arranged. The first rotating shaft 11 has a first ball head 111, and the second rotating shaft 12 has a second ball head 121. The base 2 has a spherical groove 21 that mates with the first ball head 111. The base 2 is concave in a first direction to form a connecting groove 22, which is perpendicular to the axial direction x of the first rotating shaft 11. Along the axial direction x of the first rotating shaft 11, the connecting groove 22 has a uniform cross-section. Along the first direction, the length of the connecting groove 22 gradually decreases in the second direction y. The second direction y and the first direction are perpendicular to the axial direction x of the first rotating shaft 11. The inner surface of the connecting groove 22 clamps the second ball head 121 along the second direction y.

[0051] Thus, a first rotating shaft 11 is formed at one end of the reflector structure 1, the first rotating shaft 11 having a first ball head 111, and a spherical groove 21 is formed on the base 2. The first ball head 111 mates with the spherical groove 21, and the mating of the first ball head 111 and the spherical groove 21 has a self-centering effect. Even if the first ball head 111 and the spherical groove 21 have slightly higher machining errors, the first ball head 111 can still be kept relatively accurately at the center position of the spherical groove 21. The spherical groove 21 has high positioning accuracy for the first ball head 111, and the machining error has less impact on the positioning accuracy, which is beneficial to improving the installation accuracy of the reflector structure 1 on the base 2. Therefore, the reflector assembly of the head-up display device provided in this application can improve the installation accuracy of the reflector structure 1, thereby improving the image quality of the head-up display device.

[0052] Furthermore, by forming a connecting groove 22 on the base 2, the connecting groove 22 has a uniform cross-section along the axial direction x of the first rotating shaft 11. The inner surface of the connecting groove 22 clamps the second ball head 121 along the second direction y, making the contact area between the second ball head 121 and the inner surface of the connecting groove 22 slightly smaller. This results in less resistance generated by the inner surface of the connecting groove 22 on the second ball head 121 during its movement relative to the base 2. This helps to reduce wear between the inner surface of the connecting groove 22 and the outer surface of the second ball head 121, and also helps to make the movement of the reflector structure 1 relative to the base 2 smoother.

[0053] Furthermore, in this embodiment, the first ball head 111 mates with the spherical groove 21, and the second ball head 121 mates with the connecting groove 22, so as to mount the reflector structure 1 on the base 2, eliminating the bearing seat and reducing costs.

[0054] Please refer to Figure 1 , Figure 2 and Figure 3Generally, in the embodiments of this application, the reflector structure 1 refers to the large reflector structure of the head-up display device. The large reflector structure has the same meaning as commonly understood by those skilled in the art in the embodiments of this application. The large reflector structure can generally magnify the image projected on the windshield. During the movement of the large reflector structure relative to the base 2 around the axis of the first rotating shaft 11, the position of the image on the windshield can be adjusted, which will not be described in detail here.

[0055] Please refer to Figure 1 , Figure 2 and Figure 3 Generally, the base 2 has a mounting cavity 23, a spherical groove 21 is formed on the inner surface of the mounting cavity 23, a connecting groove 22 is formed on the inner surface of the mounting cavity 23, and at least a portion of the reflector structure 1 is disposed within the mounting cavity 23. Thus, the base 2 can protect the reflector structure 1. In some embodiments of this application, the mounting cavity 23 has a mounting opening 231, which faces upwards. The reflector structure 1 can be inserted into the mounting cavity 23 through the mounting opening 231. The reflector assembly of the head-up display device also includes a top cover, which covers the mounting opening 231.

[0056] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that, in this embodiment of the application, the first rotating shaft 11 and the second rotating shaft 12 are relatively fixed. The axis of the first rotating shaft 11 passes through the center of the first ball head 111 and the center of the second ball head 121.

[0057] Please refer to Figure 1 , Figure 2 and Figure 3 It is understood that in this embodiment of the application, the first direction is the depth direction of the connecting groove 22, and the first direction is opposite to the orientation z of the connecting groove 22.

[0058] Please refer to Figure 1 , Figure 2 and Figure 3 It should be explained that, in this embodiment of the application, the inner surface of the connecting groove 22 clamps the second ball head 121 along the second direction y, that is, along the second direction y, the surfaces on opposite sides of the connecting groove 22 abut against the spherical portion of the outer surface of the second ball head 121.

[0059] Please refer to Figure 1 , Figure 2 and Figure 4In some embodiments of this application, the outline of the connecting groove 22 projected onto the first reference plane is an arc. The first reference plane is any plane perpendicular to the axial direction x of the first rotating shaft 11, and the radius of the arc is the same as the radius of the second ball head 121. By making the outline of the connecting groove 22 projected onto the first reference plane an arc, and the radius of the arc being the same as the radius of the second ball head 121, the contact area between the inner surface of the connecting groove 22 and the second ball head 121 is larger. This facilitates a more stable installation of the second ball head 121 within the connecting groove 22, improves the positioning accuracy of the connecting groove 22 for the second ball head 121, thereby improving the installation accuracy of the reflector structure 1 on the base 2, and ultimately improving the image quality of the head-up display device.

[0060] Please refer to Figure 1 , Figure 2 and Figure 4 It should be noted that, in this embodiment of the application, the line connecting the center of the arc and the vertex of the arc is parallel to the first direction.

[0061] Of course, in the embodiments of this application, the outline of the connecting groove 22 projected onto the first reference plane can also be any shape other than an arc. For example, in some embodiments of this application, the inner surface of the connecting groove 22 includes a first plane and a second plane, which are arranged opposite to each other along the second direction y. Along the first direction, the distance between the first plane and the second plane gradually decreases, and the first plane and the second plane together clamp the second ball head 121 along the second direction y. Based on this, in some embodiments of this application, the connecting groove 22 can be a V-shaped groove or a trapezoidal groove, etc. A V-shaped groove is a groove with a V-shaped cross-section perpendicular to the axial direction of the first connecting shaft, and a trapezoidal groove is a groove with a trapezoidal cross-section perpendicular to the axial direction of the first connecting shaft.

[0062] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, along the axial direction x of the first rotating shaft 11, the end of the connecting groove 22 near the first rotating shaft 11 passes through the base 2. Thus, along the axial direction x of the first rotating shaft 11, the position of the second ball head 121 relative to the connecting groove 22 can be adjusted, compensating for machining errors in the connecting groove 22 and the spherical groove 21 along the axial direction x of the first rotating shaft 11. This allows the second ball head 121 to be smoothly inserted into the connecting groove 22 when the first ball head 111 is inserted into the spherical groove 21, facilitating the assembly of the reflector structure 1 and the base 2.

[0063] Please refer to Figure 1 , Figure 2 and Figure 4In some embodiments of this application, the base 2 includes a guide surface 24 extending along the axial direction x of the first rotating shaft 11. A connecting groove 22 is located on one side of the guide surface 24 in the first direction. One end of the guide surface 24 near the connecting groove 22 engages with the surface of the connecting groove 22 on the side of the connecting groove 22 in the second direction y. The other end of the guide surface 24 is inclined away from the connecting groove 22 along the second direction y. By providing the guide surface 24, if the second ball head 121 is offset from the connecting groove 22 in the second direction y during its movement along the first direction toward the connecting groove 22, the guide surface 24 can guide the second ball head 121 to a position aligned with the connecting groove 22, thereby facilitating its installation. This improves the ease of installation of the second ball head 121 and the connecting groove 22.

[0064] Please refer to Figure 1 , Figure 2 and Figure 4 It should be explained that, in this embodiment of the application, the end of the guide surface 24 near the connecting groove 22 and the other end of the guide surface 24 are the two opposite ends of the guide surface 24 in the direction parallel to the first direction.

[0065] Please refer to Figure 1 , Figure 2 and Figure 4 It is understood that in the embodiments of this application, the guide surface 24 has an angle with the first direction. The angle between the guide surface 24 and the first direction can be various, for example, it can be 30 degrees, 45 degrees or 60 degrees, etc.

[0066] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, the outline of the connecting groove 22 projected onto the first reference plane is an arc, and the guide surface 24 is tangent to the arc. This makes the manufacturing of the guide surface 24 more convenient.

[0067] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, there are two guide surfaces 24, which are respectively disposed on opposite sides of the connecting groove 22 in the second direction y. Thus, as the second ball head 121 moves towards the connecting groove 22 along the first direction, the two guide surfaces 24 can guide the second ball head 121, causing it to move relative to the connecting groove 22 in two opposite directions parallel to the second direction y. This allows the second ball head 121 to move to a position aligned with the connecting groove 22, thereby inserting it into the connecting groove 22 and improving the ease of installation between the second ball head 121 and the connecting groove 22.

[0068] Please refer to Figure 1 , Figure 2 and Figure 4 In this embodiment of the application, the angles between the two guide surfaces 24 and the first direction can be the same or different.

[0069] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, along the axial direction x of the first rotating shaft 11, the surfaces on opposite sides of the first ball head 111 abut against the inner surface of the spherical groove 21. This ensures that the spherical groove 21 and the first ball head 111 are mutually positioned along the axial direction x of the first rotating shaft 11, which helps to improve the stability of the mirror structure 1 during installation.

[0070] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, along the axial direction x of the first rotating shaft 11, the surfaces on opposite sides of the spherical groove 21 abut against the spherical portion of the outer surface of the first ball head 111. This facilitates higher positioning accuracy of the spherical groove 21 relative to the first ball head 111.

[0071] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, the surfaces of the first ball head 111 on both sides abut against the inner surface of the spherical groove 21 in at least one direction perpendicular to the axial direction x of the first rotating shaft 11. This makes the spherical groove 21 and the first ball head 111 mutually restrictive along the radial direction of the first rotating shaft 11, which helps to improve the stability of the mirror structure 1 during installation.

[0072] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, along at least one direction perpendicular to the axial direction x of the first rotating shaft 11, the surfaces on opposite sides of the spherical groove 21 respectively conform to the spherical portion of the outer surface of the first ball head 111. This facilitates higher positioning accuracy of the spherical groove 21 for the second ball head 121.

[0073] Please refer to Figure 1 , Figure 4 and Figure 5 In some embodiments of this application, the orientation z of the connecting groove 22 is the same as the orientation of the spherical groove 21. Thus, as the first ball head 111 moves towards the spherical groove 21 in the opposite direction to its orientation, the second ball head 121 also moves towards the connecting groove 22 in the opposite direction to its orientation z, i.e., the first direction, and is then inserted into the connecting groove 22. This makes the assembly of the reflector structure 1 and the base 2 more convenient.

[0074] Please refer to Figure 1 , Figure 4 and Figure 5 In this embodiment, the orientation z of the connecting groove 22 is opposite to the first direction. The orientation of the spherical groove 21 is opposite to the depth direction of the spherical groove 21.

[0075] Please refer to Figure 1 , Figure 4 and Figure 5 It is understood that in this embodiment of the application, the spherical groove 21 clamps the first ball head 111 along the second direction y.

[0076] Please refer to Figure 1 , Figure 4 and Figure 5 In some embodiments of this application, the spherical groove 21 is disposed opposite to the mounting port 231, which facilitates the insertion of the first ball head 111 into the spherical groove 21. In some embodiments of this application, the connecting groove 22 is disposed opposite to the mounting port 231, which facilitates the insertion of the second ball head 121 into the mounting port 231.

[0077] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, the reflector assembly of the head-up display device further includes a first pressing member 3. The first pressing member 3 is detachably connected to the base 2. The first pressing member 3 is disposed opposite to the spherical groove 21, and the surface of the first pressing member 3 near the spherical groove 21 abuts against the first ball head 111. By disposing the first pressing member 3 opposite to the spherical groove 21, and with the surface of the first pressing member 3 near the spherical groove 21 abutting against the first ball head 111, the first pressing member 3 confines the first ball head 111 within the spherical groove 21, which helps to improve the stability of the installation of the first ball head 111 and the spherical groove 21.

[0078] Please refer to Figure 1 , Figure 2 and Figure 5 It is understood that, in this embodiment, the direction in which the first pressing member 3 is positioned relative to the spherical groove 21 is the depth direction of the spherical groove 21. The surface of the first pressing member 3 near the spherical groove 21 refers to the surface of the first pressing member 3 near the spherical groove 21 along the direction in which the first pressing member 3 is positioned relative to the spherical groove 21.

[0079] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, the surface of the first pressing member 3 near the spherical groove 21 abuts against the spherical portion of the outer surface of the first ball head 111. This helps to reduce the contact stress between the first pressing member 3 and the first ball head 111.

[0080] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, the first pressing member 3 is elastic along the direction in which the spherical groove 21 is disposed opposite to the first pressing member 3. Thus, during the rotation of the first ball head 111 relative to the base 2 around the axis of the first rotating shaft 11, the elastic deformation of the first pressing member 3 can reduce the resistance of the first pressing member 3 to the movement of the first ball head 111, which is beneficial to reducing the wear of the first ball head 111.

[0081] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, the base 2 has a first mounting hole 25. The depth direction of the first mounting hole 25 is the same as or approximately the same as the depth direction of the spherical groove 21. For example, the depth direction of the first mounting hole 25 can have an angle of 5 to 25 degrees with the depth direction of the spherical groove 21, such as 12 degrees, 15 degrees, 18 degrees, or 20 degrees. A first fastener is provided in the first mounting hole 25, and the first fastener is connected to the first pressing member 3 so that the first pressing member 3 and the base 2 are fastened to each other. In this way, the connection between the base 2 and the first pressing member 3 is relatively stable. In some embodiments of this application, along the opposite direction of the depth direction of the first mounting hole 25, the first base 2 has a protruding first positioning post 26, which cooperates with the first positioning hole of the first pressing member 3. In this way, the cooperation between the first positioning pin 26 and the first positioning hole can accurately keep the first pressing member 3 in the target position of the base 2, which facilitates the installation of the first fastener.

[0082] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, the depth direction of the first mounting hole 25 may be parallel to the vertical direction. This facilitates the processing and manufacturing of the first mounting hole 25.

[0083] Please refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of this application, a first mounting hole 25 is provided on one side of the spherical groove 21 along the second direction y. Based on this, in some embodiments of this application, first mounting holes 25 are provided on both opposite sides of the spherical groove 21 along the second direction y.

[0084] Please refer to Figure 1 , Figure 2 and Figure 5In some embodiments of this application, a first positioning post 26 is disposed on one side of the spherical groove 21 along the second direction y. Furthermore, in some embodiments of this application, a first positioning post 26 is disposed on both opposite sides of the spherical groove 21 along the second direction y.

[0085] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, the reflector assembly of the head-up display device further includes a second pressing member 4. The second pressing member 4 is detachably connected to the base 2, and is disposed opposite to the connecting groove 22. The second pressing member 4 abuts against the second ball head 121 along a first direction. By having the second pressing member 4 abut against the second ball head 121 along the first direction, the second pressing member 4 restricts the second ball head 121 within the connecting groove 22, which helps to improve the stability of the installation of the second ball head 121 and the connecting groove 22.

[0086] Please refer to Figure 1 , Figure 2 and Figure 4 It is understood that, in this embodiment, the direction in which the second pressing member 4 is disposed opposite to the connecting groove 22 is the depth direction of the connecting groove 22. The surface of the second pressing member 4 near the connecting groove 22 refers to the surface of the second pressing member 4 near the connecting groove 22 along the direction in which the second pressing member 4 is disposed opposite to the connecting groove 22.

[0087] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, the second pressing member 4 abuts against the spherical portion of the outer surface of the second ball head 121 along a first direction. This helps to reduce the contact stress between the second pressing member 4 and the second ball head 121.

[0088] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, the second pressing member 4 is elastic in a direction parallel to the first direction. Thus, during the rotation of the second ball head 121 relative to the base 2 around the axis of the first rotating shaft 11, the elastic deformation of the second pressing member 4 reduces the resistance to the movement of the second ball head 121, thereby reducing wear on the second ball head 121.

[0089] Please refer to Figure 1 , Figure 2 and Figure 4In some embodiments of this application, the base 2 has a second mounting hole 27. The depth direction of the second mounting hole 27 is the same as or approximately the same as the depth direction of the connecting groove 22. For example, the depth direction of the second mounting hole 27 can have an angle of 5 to 25 degrees with the depth direction of the connecting groove 22, such as 12 degrees, 15 degrees, 18 degrees, or 20 degrees. A second fastener is provided in the second mounting hole 27, and the second fastener is connected to the second pressing member 4 so that the second pressing member 4 and the base 2 are fastened to each other. In this way, the connection between the base 2 and the second pressing member 4 is relatively stable. In some embodiments of this application, along the opposite direction of the depth direction of the second mounting hole 27, the first base 2 has a protruding second positioning post 28, which cooperates with the first positioning hole of the second pressing member 4. In this way, the cooperation between the second positioning post 28 and the first positioning hole can ensure that the second pressing member 4 is accurately held in the target position of the base 2, which facilitates the installation of the second fastener.

[0090] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, the depth direction of the second mounting hole 27 may be parallel to the vertical direction. This facilitates the processing and manufacturing of the second mounting hole 27.

[0091] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, a second mounting hole 27 is provided on one side of the connecting groove 22 along the second direction y. Based on this, in some embodiments of this application, second mounting holes 27 are provided on both opposite sides of the connecting groove 22 along the second direction y.

[0092] Please refer to Figure 1 , Figure 2 and Figure 4 In some embodiments of this application, a second positioning post 28 is disposed on one side of the connecting groove 22 along the second direction y. Based on this, in some embodiments of this application, second positioning posts 28 are disposed on opposite sides of the connecting groove 22 along the second direction y.

[0093] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A reflector assembly for a head-up display device, characterized in that, include: A reflector structure, wherein a first rotating shaft and a second rotating shaft are respectively formed at both ends of the reflector structure, the first rotating shaft and the second rotating shaft are coaxially arranged, the first rotating shaft has a first ball head, and the second rotating shaft has a second ball head; The base has a spherical groove that mates with the first ball head. The base is recessed inward along a first direction to form a connecting groove. The first direction is perpendicular to the axial direction of the first rotating shaft. Along the axial direction of the first rotating shaft, the connecting groove has a uniform cross-section. Along the first direction, the length of the connecting groove gradually decreases in a second direction. The second direction and the first direction are perpendicular to the axial direction of the first rotating shaft. The inner surface of the connecting groove clamps the second ball head along the second direction.

2. The reflector assembly of the head-up display device according to claim 1, characterized in that, The outline of the connecting groove in the orthographic projection of the first reference plane is an arc. The first reference plane is any plane perpendicular to the axis of the first rotating shaft. The radius of the arc is the same as the radius of the second ball head.

3. The reflector assembly of the head-up display device according to claim 1, characterized in that, Along the axial direction of the first rotating shaft, the end of the connecting groove near the first rotating shaft extends through the base toward the first rotating shaft.

4. The reflector assembly of the head-up display device according to claim 1, characterized in that, Along the axial direction of the first rotating shaft, the surfaces on opposite sides of the first ball head abut against the inner surface of the spherical groove.

5. The reflector assembly of the head-up display device according to claim 1, characterized in that, The orientation of the connecting groove is the same as that of the spherical groove.

6. The reflector assembly of the head-up display device according to claim 1, characterized in that, The base includes a guide surface that extends axially along the first rotating shaft. The connecting groove is located on one side of the guide surface in the first direction. One end of the guide surface near the connecting groove engages with the surface of the connecting groove on one side in the second direction. The other end of the guide surface is inclined in the second direction away from the connecting groove.

7. The reflector assembly of the head-up display device according to any one of claims 1 to 6, characterized in that, It also includes a first pressing member, which is detachably connected to the base. The first pressing member is disposed opposite to the spherical groove, and the surface of the first pressing member near the spherical groove abuts against the first ball head. And / or, it also includes a second pressing member, which is detachably connected to the base, and is disposed opposite to the connecting groove, and abuts against the second ball head along the first direction.

8. The reflector assembly of the head-up display device according to claim 7, characterized in that, Along the direction in which the spherical groove is disposed opposite to the first pressing member, the first pressing member is elastic; And / or, along a direction parallel to the first direction, the second pressing member is elastic.

9. A head-up display device, characterized in that, The reflector assembly of the head-up display device according to any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the head-up display device as described in claim 9.

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