Head-up display device

Abstract

The application relates to a head-up display device, which comprises a shell, an image generating unit and a light waveguide assembly; the shell comprises a base and a rotating support rotatably arranged on the base; the image generating unit is arranged on the rotating support; and the light waveguide assembly is arranged on the rotating support and is coupled with an output port of the image generating unit. The application can adjust the height of an eyebox without expanding the size of the light waveguide, thereby reducing the influence on the volume and weight of the head-up display device.

Description

Technical Field

[0001] This application relates to the field of head-up display technology, and more specifically, to a head-up display device. Background Technology

[0002] A HUD (Head-Up Display) projects image information onto the windshield, allowing drivers to access information without looking down. Currently, for waveguide-based HUDs, the achievable eye box dimensions are relatively small, and the eye box height affects the overall size. A larger eye box requires a larger waveguide, thus increasing the overall size of the HUD and hindering its expansion and upgrades. Utility Model Content

[0003] The technical problem to be solved by this application is to provide a head-up display device in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this application to solve its technical problem is: to construct a head-up display device, comprising: The housing includes a base and a rotating support rotatably mounted on the base. An image generation unit is mounted on the rotating support; An optical waveguide assembly is mounted on the rotating bracket, and its input port is coupled to the output port of the image generation unit.

[0005] Furthermore, the image generation unit and the optical waveguide assembly are disposed on opposite sides of the rotating bracket, and the image generation unit is located between the base and the rotating bracket; the rotating bracket is provided with a window, and the output port of the image generation unit is coupled to the input port of the optical waveguide assembly through the window.

[0006] Furthermore, a rotating assembly is provided between the base and the rotating bracket, the rotating assembly including a driving member that drives the rotating bracket to rotate relative to the base.

[0007] Furthermore, the rotating assembly also includes a first engaging member and a second engaging member that are engaged with each other; the second engaging member is disposed on the driving member to rotate under the drive of the driving member; one of the first engaging member and the driving member is disposed on the base, and the other is disposed on the rotating bracket.

[0008] Furthermore, a pivot is provided between the base and the rotating bracket; When the first engaging member is disposed on the rotating bracket, the rotation center of the first engaging member is located on the extension line of the rotating shaft; When the driving member is mounted on the rotating bracket, the rotation center of the second engaging member is located on the extension line of the rotating shaft.

[0009] Furthermore, the rotating assembly also includes a transmission bracket, which has a receiving cavity with an opening on one side; the driving member is disposed on the transmission bracket, and the second engaging member is disposed in the receiving cavity and engages with the first engaging member through the opening.

[0010] Furthermore, the base is provided with a rotating groove and a rotating hole; the rotating bracket is provided with a rotating shaft, and the two ends of the rotating shaft are respectively rotatably disposed in the rotating groove and the rotating hole.

[0011] Furthermore, the base includes a seat body and a rotating shaft bracket disposed on the seat body; the rotating hole is disposed on the rotating shaft bracket, and the rotating groove is disposed on the seat body.

[0012] Furthermore, the rotating shaft includes a first shaft portion and a second shaft portion coaxially disposed on opposite sides of the rotating bracket; the first shaft portion is disposed within the rotating hole, and the second shaft portion is disposed within the rotating groove.

[0013] Furthermore, the opening side of the rotating groove is provided with a limiting member for closing the opening.

[0014] Implementing the technical solution constructed in this application has at least the following beneficial effects: This application sets up a rotating bracket, on which the optical waveguide assembly and the image generation unit are all mounted, and which can be rotatably mounted relative to the base. The mounting angle of the image generation unit and the optical waveguide assembly can be adjusted as a whole by changing the rotation angle of the rotating bracket, thereby achieving the adjustment of the eye box height. This eliminates the need to increase the size of the optical waveguide to adjust the eye box height, reducing the impact on the size and weight of the head-up display device. Attached Figure Description

[0015] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the structure of a head-up display device in one embodiment of the present invention; Figure 2 yes Figure 1 The exploded view of the head-up display device shown. Figure 3 yes Figure 2 A schematic diagram of the rotating support structure in the diagram; Figure 4 yes Figure 3 The diagram shows the structure of the rotating bracket at another angle; Figure 5 yes Figure 2 A schematic diagram of the structure of the base; Figure 6 yes Figure 1 A schematic cross-sectional view of the head-up display device shown. Figure 7 yes Figure 6 The diagram shows the height of the eye box corresponding to different rotation angles of the head-up display device with respect to the rotating bracket. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of this application, the specific embodiments of this application are now described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0017] In the description of this application, it should be understood that the terms "longitudinal", "lateral", "up", "down", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] Figures 1 to 7 The illustration shows a head-up display (HUD) device 1 according to one embodiment of the present invention. This HUD device 1 can be applied to driving equipment such as vehicles, aircraft, and ships that require the driver to look up while driving, thereby reducing the frequency with which the driver needs to look down at the instruments or central control screen during driving, and improving driving comfort and safety.

[0022] like Figure 1 and Figure 2 As shown, the head-up display device 1 may include a housing 10, an image generation unit 20, and an optical waveguide assembly 30. Both the image generation unit 20 and the optical waveguide assembly 30 are disposed on the housing 10. The image generation unit 20 is used to generate optical images. The input port of the optical waveguide assembly 30 is coupled to the output port of the image generation unit 20, used to transmit the optical images, and to expand and adjust the optical images so that the beam distribution meets the requirements of the eyepiece.

[0023] It should be noted that the optical waveguide component 30 may include at least one optical waveguide. Both the image generation unit 20 and the optical waveguide component 30 can be implemented using existing technologies, and therefore will not be discussed further here.

[0024] In some embodiments, the housing 10 may include a base 11, a rotating bracket 12, and a rotating assembly 13. The image generation unit 20 and the optical waveguide assembly 30 are both mounted on the rotating bracket 12, which is rotatably mounted on the base 11. When the base 11 is installed on the driving device, the rotating bracket 12 rotates relative to the base 11, causing the image generation unit 20 and the optical waveguide assembly 30 to rotate relative to the base 11 and the driving device, thereby adjusting the height of the eye box. The rotating assembly 13 is located between the base 11 and the rotating bracket 12, and is used to drive the rotating bracket 12 to rotate relative to the base 11.

[0025] Specifically, please refer to the following: Figures 3 to 5The rotating bracket 12 is generally plate-shaped. The base 11 may include a bottom wall 1101 and side walls 1102 surrounding the bottom wall 1101. The rotating bracket 12 is rotatably disposed on the side of the side wall 1102 away from the bottom wall 1101, so as to define a cavity 100 together with the base 11. The image generation unit 20 and the optical waveguide assembly 30 are respectively disposed on opposite sides of the rotating bracket 12, with the image generation unit 20 located between the base 11 and the rotating bracket 12, within the cavity 100. The optical waveguide assembly 30 is disposed on the side of the rotating bracket 12 away from the base 11.

[0026] A window 121 extends through the rotating support 12. The output port of the image generation unit 20 and the input port of the optical waveguide assembly 30 are respectively set to correspond to the window 121, so that the two can be coupled and connected through the window 121.

[0027] It should be noted that the optical waveguide assembly 30 and the image generation unit 20 can be installed on the rotating bracket 12 in a detachable or non-detachable manner through bolt connection, snap connection, glue connection, threaded connection, etc., and no specific fixing is described here.

[0028] It should be noted that traditional head-up displays transmit optical images through a reflection system, allowing the height of the eye box to be adjusted by changing the angle of the reflectors in the system. However, for waveguide-based head-up displays, the eye box angle cannot be adjusted by changing the angle of the waveguide; the height can only be adjusted by changing the size of the waveguide plate.

[0029] Increasing the size of the waveguide not only increases manufacturing difficulty but also enlarges the size and weight of the head-up display device 1, making it difficult to achieve product lightweighting. The larger size of the head-up display device 1 also increases the difficulty of its installation within the cockpit, hindering product development.

[0030] This invention features a rotating bracket 12 on which the optical waveguide assembly 30 and the image generation unit 20 are mounted, and which are rotatably mounted relative to the base 11. The angle between the image generation unit 20 and the optical waveguide assembly 30 can be adjusted by changing the rotation angle of the rotating bracket 12, thereby adjusting the height of the eye box to achieve a greater eye box height.

[0031] For example Figure 7 As shown, when the rotating bracket 12 is at a first angle α1 relative to the base 11, the eye box is at a first height H1. When the rotating bracket 12 is at a second angle α2 relative to the base 11, the eye box is at a second height H2. When the rotating bracket 12 is at a third angle α3 relative to the base 11, the eye box is at a third height H3.

[0032] In this way, the relative angle between the image generation unit 20 and the optical waveguide assembly 30 remains unchanged, thus not affecting the transmission of the optical image from the image generation unit to the optical waveguide. Simultaneously, there is no need to adjust the height of the head-up display by increasing the size of the optical waveguide, nor is there a need to add a reflection system to adjust the light transmission path. This reduces the impact on the size and weight of the head-up display device 1, facilitating lightweight and miniaturized design, and making it easier to deploy in the cockpit, which is beneficial for product development.

[0033] In some other embodiments, the base 11 may only include a bottom wall 1101, or the base 11 may be in the shape of a box or a housing. When the base 11 is in the shape of a box or a housing, the image generation unit 20 and the optical waveguide assembly 30 are both located inside the base 11, and the rotating bracket 12 is rotatably disposed inside the base 11. Optical images are output by providing an opening on the base 11.

[0034] In some other embodiments, the rotating support 12 may include a top wall and side walls, the side walls or the top wall being rotatably connected to the base 11. Alternatively, the rotating support 12 may be configured as a box or enclosure.

[0035] like Figures 2 to 4 As shown, in some embodiments, a rotating shaft 15 is provided between the base 11 and the rotating bracket 12. Driven by the rotating assembly 13, the rotating bracket 12 is rotatably mounted on the base 11 with the rotating shaft 15 as its axis of rotation. The rotating shaft 15 may include a first shaft portion 151 and a second shaft portion 152. The first shaft portion 151 and the second shaft portion 152 are coaxially disposed on opposite sides of the rotating bracket 12 and rotatably connected to the base 11. Thus, the rotating bracket 12 can be rotatably mounted on the base 11.

[0036] Specifically, please refer to the following: Figure 5 The first shaft portion 151 and the second shaft portion 152 are fixed to opposite sides of the rotating bracket 12 along the first direction X, and both extend along the first direction X. The base 11 is provided with a rotating groove 1111 and a rotating hole 1121 on opposite sides along the first direction X, and the two ends of the rotating shaft 15 are rotatably disposed in the rotating groove 1111 and the rotating hole 1121, respectively.

[0037] It should be noted that the ends of the first shaft portion 151 away from the second shaft portion 152 and the ends of the second shaft portion 152 away from the first shaft portion 151 can be regarded as the two ends of the rotating shaft 15. The two ends of the rotating shaft 15 are rotatably disposed in the rotating groove 1111 and the rotating hole 1121, respectively. Specifically, it can be understood that the first shaft portion 151 is rotatably disposed in the rotating hole 1121, and the second shaft portion 152 is rotatably disposed in the rotating groove 1111.

[0038] By installing the pivot 15 as two spaced-apart shafts on opposite sides of the rotating bracket 12, it is possible to avoid affecting the installation of other components on the rotating bracket 12 or the base 11, and also to effectively reduce the space occupied by the pivot 15, so as to further facilitate the lightweighting and miniaturization of the head-up display device 1.

[0039] In some other embodiments, the base 11 may also be provided with two rotating grooves 1111 or two rotating holes 1121 along the first direction X.

[0040] In some other embodiments, the rotating groove 1111 and / or rotating hole 1121 may also be provided on the rotating bracket 12, and the first shaft portion 151 and the second shaft portion 152 are fixed to opposite sides of the base 11.

[0041] In some other embodiments, the rotating bracket 12 and the base 11 may also be provided with rotating grooves 1111 and / or rotating holes 1121, and the first shaft portion 151 and the second shaft portion 152 are respectively rotatably inserted into the rotating grooves 1111 and / or rotating holes 1121 on the rotating bracket 12 and the base 11.

[0042] like Figure 3 and Figure 4 As shown, in some embodiments, the second shaft portion 152 may also be provided with a limiting groove 1521 along the circumferential direction to limit the relative position of the rotating shaft 15 and the base 11 along the axial direction.

[0043] When the rotating shaft 15 and the rotating bracket 12 are assembled onto the base 11, the side wall 1102 where the rotating groove 1111 is located is locked in the limiting groove 1521 to prevent the rotating shaft 15 from moving out of the rotating groove 1111 or the rotating hole 1121 after axial movement.

[0044] In some other embodiments, a limiting groove 1521 may also be provided on the first shaft portion 151.

[0045] like Figure 2 and Figure 5 As shown, in some embodiments, the base 11 may include a seat body 111, a pivot bracket 112, and a limiting member 113. The pivot bracket 112 and the limiting member 113 are respectively disposed on opposite sides of the seat body 111 along a first direction X. The pivot bracket 112 has a rotating hole 1121, and the end of the seat body 111 away from the pivot bracket 112 along the first direction X has a recessed rotating groove 1111. The rotating groove 1111 has an opening, and the limiting member 113 seals the opening, so that the rotating groove 1111 is closed and forms a hole. This prevents the second shaft portion 152 from dislodging from the rotating groove 1111 during rotation.

[0046] Specifically, the seat 111 may include a bottom wall 1101 and a side wall 1102. The pivot bracket 112 and the rotating groove 1111 may be located on the side of the side wall 1102 away from the bottom wall 1101, and the opening end of the rotating groove 1111 faces the side of the side wall 1102 away from the bottom wall 1101.

[0047] Furthermore, the sidewall 1102 is provided with an installation step 1112 at one end away from the rotating groove 1111 along the first direction X, and the installation step 1112 is located on the side of the sidewall 1102 away from the bottom wall 1101, which is used to provide an installation point for the rotating shaft bracket 112.

[0048] By setting up the rotating shaft bracket 112 and the rotating groove 1111, the assembly of the rotating bracket 12 and the rotating shaft 15 fixed on the rotating bracket 12 with the base 11 can be facilitated. During the assembly process, the first shaft portion 151 can be inserted into the rotating hole 1121 of the rotating shaft bracket 112, and then the assembled component can be placed on the base 111. The second shaft portion 152 is located in the rotating groove 1111, and the rotating bracket 12 is located in the mounting step 1112. Furthermore, the limiting member 113 is placed over the opening of the rotating groove 1111, and the rotating bracket 12 is fixed on the mounting step 1112, thus completing the assembly between the components.

[0049] It should be noted that the installation of the limiting component 113 at the opening of the rotating groove 1111 can be achieved by bolt connection, snap-fit ​​connection, glue connection, etc., and no specific limitation is made here. The installation of the rotating shaft bracket 112 at the mounting step 1112 can be achieved by bolt connection, snap-fit ​​connection, glue connection, welding, integral molding, threaded connection, etc., and no specific limitation is made here.

[0050] In some other embodiments, when the thickness of the side wall 1102 of the seat 111 is sufficient to install the pivot bracket 112, the seat 111 may not have an installation step 1112, and the pivot bracket 112 may be directly installed on the side wall 1102.

[0051] In some other embodiments, the base 11 may also include a seat body 111 and two rotating shaft supports 112. The two rotating shaft supports 112 are respectively disposed at opposite ends of the seat body 111 along the first direction X. The two ends of the rotating shaft 15 are rotatably inserted into the rotating holes 1121 of the two rotating shaft supports 112.

[0052] In some other embodiments, the base 11 may also include a seat body 111 and two limiting members 113. The seat body 111 has two rotating grooves 1111 at opposite ends along the first direction X, and the two limiting members 113 are respectively disposed at the openings of the two rotating grooves 1111 to close the openings, so that the two ends of the rotating shaft 15 are rotatably limited within the two rotating grooves 1111.

[0053] In some other embodiments, the base 11 may also include only a seat body 111, the inner wall surface of the side wall 1102 of the seat body 111 is recessed outward to form a rotating groove 1111, such that the opening ends of the two rotating grooves 1111 are arranged opposite each other and both extend along the first direction X, so that the two ends of the rotating shaft 15 can be inserted into the two rotating grooves 1111 respectively.

[0054] In some other embodiments, the base 111 and the pivot bracket 112 may also be configured as an integral structure.

[0055] In some other embodiments, the limiting member 113 may also be configured to be rotatably mounted on the base 111.

[0056] In some other embodiments, the base 11 may not have a limiting member 113.

[0057] In some embodiments, the limiting member 113 may specifically adopt a spring sheet structure, which has a certain elastic deformation performance to absorb the error generated during the production and assembly of the rotating shaft 15 and the base 11.

[0058] In some other embodiments, the limiting member 113 may also be configured as a non-elastic plate or sheet structure such as plastic, metal, or alloy, or as a strip, rod, or other structure that can limit the second shaft portion 152.

[0059] like Figure 5 As shown, in some embodiments, the bottom wall 1101 of the base 111 is further recessed to form a first mounting groove 1113 and a second mounting groove 1114. The first mounting groove 1113 is used to accommodate the image generation unit 20, which is movably disposed within the first mounting groove 1113 relative to the base 111 during rotation with the rotating bracket 12. The second mounting groove 1114 is used to accommodate a portion of the rotating assembly 13.

[0060] It should be noted that the specific shape and size of the first mounting groove 1113 and the second mounting groove 1114 can be flexibly set based on factors such as the specific shape and size of the image generation unit 20 and the rotating component 13, the space required for the rotation of the rotating bracket 12, and the size of the cavity 100, and are not specifically limited here.

[0061] like Figure 2 and Figure 6 As shown, in some embodiments, the rotating assembly 13 may include a first engaging member 131, a second engaging member 132, a driving member 133, and a transmission bracket 134. The second engaging member 132 and the driving member 133 are disposed on the transmission bracket 134, which is mounted in a second mounting groove 1114 to facilitate the mounting of the second engaging member 132 and the driving member 133 on the base 11. The first engaging member 131 is disposed on the rotating bracket 12, specifically on the side of the rotating bracket 12 facing the base 11, and engages with the second engaging member 132. The output shaft of the driving member 133 is connected to the second engaging member 132, driving the second engaging member 132 to rotate, thereby driving the rotating bracket 12 to rotate relative to the base 11.

[0062] Specifically, the drive component 133 may be a motor, and the second meshing component 132 is worm-shaped and coaxially connected to the output shaft of the motor. The first meshing component 131 is generally a half-gear structure, with its non-gear side fixed to the rotating bracket 12 and its gear side protruding towards the second meshing component 132 for meshing connection with the second meshing component 132.

[0063] Thus, the first meshing member 131 and the second meshing member 132 are roughly combined to form a worm gear structure. When the driving member 133 drives the second meshing member 132 to rotate, the first meshing member 131 rotates synchronously, thereby driving the rotating bracket 12 and the image generation unit 20 and the optical waveguide assembly 30 arranged on the rotating bracket 12 to rotate synchronously.

[0064] The transmission bracket 134 is provided with a receiving cavity 1341, and an opening is provided on one side of the receiving cavity 1341, which faces the first engaging member 131. The second engaging member 132 is disposed in the receiving cavity 1341, and the output shaft of the driving member 133 is rotatably mounted on the transmission bracket 134 to extend into the receiving cavity 1341 and connect with the second engaging member 132. The second engaging member 132 can engage with the first engaging member 131 through the opening of the receiving cavity 1341. In this way, the transmission bracket 134 can provide a certain degree of protection for the meshing transmission between the first engaging member 131 and the second engaging member 132.

[0065] By rotating the image generation unit 20 and the optical waveguide assembly 30, the light emission angle of the head-up display device 1 can be adjusted, thereby forming projection images of different heights on the wind deflector 2 and realizing the adjustment of different eye box heights.

[0066] It should be noted that the first engaging member 131 is positioned on the rotating bracket 12 such that the rotation center of the first engaging member 131 is located on the extension line of the rotating shaft 15, so as to ensure that the first engaging member 131 can drive the rotating bracket 12 to rotate coaxially relative to the base 11.

[0067] In some other embodiments, the first engaging member 131 may also be configured as a complete gear structure, by providing a groove on the rotating bracket 12 to accommodate the first engaging member 131.

[0068] In some other embodiments, the second meshing member 132 may also be configured as a gear structure.

[0069] In some other embodiments, the first engaging member 131 may also be configured as a worm gear structure.

[0070] In some other embodiments, the second engaging member 132 and the driving member 133 may also be disposed on the side of the rotating bracket 12 facing the base 11, and the first engaging member 131 may be disposed on the base 11. In this embodiment, the rotation center of the second engaging member 132 is located on the extension line of the rotating shaft 15.

[0071] In some other embodiments, the rotating assembly 13 may not have a transmission bracket 134, and the second meshing member 132 may be directly disposed in the second mounting groove 1114.

[0072] In some other embodiments, the drive element 133 may also be a motor or the like.

[0073] In some other embodiments, the rotating assembly 13 may also include only a driving member 133. The driving member 133 may be configured as a lead screw, cylinder, electric cylinder, or hydraulic cylinder. The main body of the driving member 133 is disposed on either the base 11 or the rotating bracket 12, and the output rod is disposed on the other. By extending or retracting the output rod, the distance between a certain point on the base 11 and a certain point on the rotating bracket 12 is controlled to change, thereby realizing the rotation of the rotating bracket 12 relative to the base 11.

[0074] Understandably, the above-mentioned technical features can be used in any combination without restriction.

[0075] The above embodiments merely illustrate specific implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application's patent. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of this application, and can also make several modifications and improvements, all of which fall within the protection scope of this application. Therefore, any equivalent transformations and modifications made within the scope of the claims of this application should be covered by the claims of this application.

Claims

1. A head-up display device, characterized in that, include: The housing (10) includes a base (11) and a rotating bracket (12) rotatably mounted on the base (11). An image generation unit (20) is disposed on the rotating support (12); An optical waveguide assembly (30) is disposed on the rotating bracket (12), and its input port is coupled to the output port of the image generation unit (20).

2. The head-up display device according to claim 1, characterized in that, The image generation unit (20) and the optical waveguide assembly (30) are disposed on opposite sides of the rotating bracket (12), and the image generation unit (20) is located between the base (11) and the rotating bracket (12); a window (121) is provided on the rotating bracket (12), and the output port of the image generation unit (20) is coupled to the input port of the optical waveguide assembly (30) through the window (121).

3. The head-up display device according to claim 1, characterized in that, A rotating assembly (13) is provided between the base (11) and the rotating bracket (12). The rotating assembly (13) includes a driving member (133) that drives the rotating bracket (12) to rotate relative to the base (11).

4. The head-up display device according to claim 3, characterized in that, The rotating assembly (13) further includes a first engaging member (131) and a second engaging member (132) that are engaged together; the second engaging member (132) is disposed on the driving member (133) to rotate under the drive of the driving member (133); one of the first engaging member (131) and the driving member (133) is disposed on the base (11), and the other is disposed on the rotating bracket (12).

5. The head-up display device according to claim 4, characterized in that, A pivot (15) is provided between the base (11) and the rotating bracket (12). When the first engaging member (131) is disposed on the rotating bracket (12), the rotation center of the first engaging member (131) is located on the extension line of the rotating shaft (15); When the drive member (133) is mounted on the rotating bracket (12), the rotation center of the second engagement member (132) is located on the extension line of the rotating shaft (15).

6. The head-up display device according to claim 4, characterized in that, The rotating assembly (13) further includes a transmission bracket (134), which has a receiving cavity (1341) with an opening on one side; the driving member (133) is disposed on the transmission bracket (134), and the second engaging member (132) is disposed in the receiving cavity (1341) and engages with the first engaging member (131) through the opening.

7. The head-up display device according to any one of claims 1 to 6, characterized in that, The base (11) is provided with a rotating groove (1111) and a rotating hole (1121); the rotating bracket (12) is provided with a rotating shaft (15), and the two ends of the rotating shaft (15) are rotatably disposed in the rotating groove (1111) and the rotating hole (1121) respectively.

8. The head-up display device according to claim 7, characterized in that, The base (11) includes a seat body (111) and a rotating shaft bracket (112) disposed on the seat body (111); the rotating hole (1121) is disposed on the rotating shaft bracket (112), and the rotating groove (1111) is disposed on the seat body (111).

9. The head-up display device according to claim 8, characterized in that, The rotating shaft (15) includes a first shaft portion (151) and a second shaft portion (152) coaxially disposed on opposite sides of the rotating bracket (12); the first shaft portion (151) is disposed in the rotating hole (1121), and the second shaft portion (152) is disposed in the rotating groove (1111).

10. The head-up display device according to claim 7, characterized in that, The opening side of the rotating groove (1111) is provided with a limiting member (113) for closing the opening.

Images