Adjustable angle heads-up display

Abstract

The utility model discloses an adjustable angle head-up display, including casing, display module, first reflector and drive assembly. Display module is installed in the casing. The first reflector is located in the casing, and the first reflector is rotatably connected to the casing, and the first reflector is used for receiving and reflecting the light of display module, and one side of the first reflector is equipped with the connecting portion, and the outer peripheral wall of connecting portion is equipped with the toothing. Drive assembly includes drive motor and gear piece, and the gear piece is sleeved in the drive end of drive motor, and the gear piece is engaged with the toothing of connecting portion, and the drive motor can drive the gear piece to rotate and drive the first reflector to rotate, and the gear piece can rotate relative to the drive end of drive motor and drive the first reflector to rotate. The casing is equipped with the mounting bracket, and the mounting bracket is fixedly installed in the casing through the shock absorbing bolt, and the drive motor is fixedly installed in the mounting bracket, and the adjustable angle head-up display can electrically adjust the first reflector angle and has strong shock resistance.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to an adjustable-angle head-up display. Background Technology

[0002] With the intelligent development of in-vehicle electronic devices, head-up displays (HUDs) are gradually becoming a core component of smart cockpits. Currently, the angle of the reflector in automotive HUDs is typically adjusted manually, meaning the angle is manually adjusted during installation to fit the vehicle. This makes the installation process complex, inflexible, and inefficient. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes an adjustable-angle head-up display.

[0004] This utility model embodiment provides an adjustable-angle head-up display, the adjustable-angle head-up display comprising:

[0005] case;

[0006] The display module is installed inside the housing;

[0007] A first reflector is located inside the housing and is rotatably connected to the housing. The first reflector is used to receive and reflect the light from the display module. A connecting part is provided on one side of the first reflector, and the outer peripheral wall of the connecting part is provided with teeth.

[0008] The drive assembly includes a drive motor and a gear component, wherein the gear component is sleeved on the drive end of the drive motor and meshes with the teeth of the connecting portion; the drive motor can drive the gear component to rotate, thereby driving the first reflector to rotate.

[0009] The housing is provided with a mounting bracket, which is fixedly installed in the housing by shock-absorbing bolts, and the drive motor is fixedly installed in the mounting bracket.

[0010] According to some embodiments of this utility model, the drive assembly further includes a pin; the outer peripheral wall of the gear component has a through hole communicating with the inner cavity of the gear component; the hole wall on the side of the through hole near the inner cavity of the gear component has an annular receiving groove; the outer peripheral wall of the drive end of the drive motor has a second groove; the groove wall of the second groove has a limiting protrusion; one end of the pin has an elastic ring; the pin passes through the through hole; the pin can move radially to cause the elastic ring to reciprocate on both sides of the limiting protrusion, so that the elastic ring can reciprocate between the second groove and the annular receiving groove; the first reflector has an automatic angle adjustment mode and a manual angle adjustment mode, wherein:

[0011] In manual angle adjustment mode, the elastic ring is located in the annular receiving groove, and the rotation of the pin can drive the gear component to rotate relative to the drive end of the drive motor, and drive the first reflector to rotate.

[0012] In automatic angle adjustment mode, the elastic ring is located in the second groove, and the drive end of the drive motor can rotate to drive the gear component to rotate through the pin, and also drive the first reflector to rotate.

[0013] According to some embodiments of the present invention, the mounting bracket is provided with a first limiting hole, and a first limiting post is provided on one side of the first reflector. The first limiting post is inserted into the first limiting hole, and the first reflector can rotate around the axis of the first limiting post.

[0014] According to some embodiments of the present invention, a second limiting post is provided on the side of the first reflector away from the first limiting post, the first limiting post and the second limiting post are coaxially arranged, the housing is provided with a second limiting hole, the second limiting post is inserted into the second limiting hole and can rotate along its own axis.

[0015] According to some embodiments of the present invention, the side wall of the housing is provided with a heat dissipation panel, and the heat dissipation panel is provided with a plurality of heat dissipation fins, which are arranged at intervals.

[0016] According to some embodiments of the present invention, the housing includes a first housing and a second housing, the display module, the first reflector and the driving assembly are located inside the second housing, and the first housing and the second housing are detachably connected.

[0017] According to some embodiments of the present invention, the adjustable head-up display further includes a second reflector, which is fixedly installed in the housing and located in front of the first reflector. The second reflector is used to receive light from the display module and reflect it back to the first reflector.

[0018] According to some embodiments of the present invention, the upper side of the housing is provided with a transparent window, through which the first reflector reflects light to the outside.

[0019] According to some embodiments of the present invention, the bottom of the housing is provided with a first groove, the display module is disposed in the first groove, and the light-emitting side of the display module faces the second reflector.

[0020] According to some embodiments of the present invention, a light guide channel is provided inside the housing, the light emitting side of the display module faces the entrance of the light guide channel, and the exit of the light guide channel faces the second reflector.

[0021] The adjustable-angle head-up display according to the embodiments of the present utility model has at least the following technical effects:

[0022] 1. When the adjustable head-up display needs to adjust the projection angle, the drive motor drives the gear components to rotate, thereby rotating the first reflector to adjust the angle of the first reflector.

[0023] 2. The shock-absorbing bolts can play a role in shock absorption and buffering, thereby preventing the drive motor and the first reflector connected to the drive motor from vibrating, ensuring the stable connection between the drive motor and the first reflector, and ensuring the accurate position of the first reflector without deviation, thus improving the projection accuracy.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a structural schematic diagram of an adjustable-angle head-up display according to some embodiments of the present invention;

[0027] Figure 2 This is an exploded view of an adjustable-angle head-up display according to some embodiments of the present invention;

[0028] Figure 3 This is a partial structural schematic diagram of an adjustable-angle head-up display according to some embodiments of the present invention;

[0029] Figure 4 This is a partial structural schematic diagram of an adjustable-angle head-up display according to some embodiments of the present invention;

[0030] Figure 5This is a partial structural schematic diagram of an adjustable-angle head-up display according to some embodiments of the present invention;

[0031] Figure 6 This is a partial structural schematic diagram of an adjustable-angle head-up display according to some embodiments of the present invention;

[0032] Figure 7 This is a partial structural schematic diagram of an adjustable-angle head-up display according to some embodiments of the present invention.

[0033] Icon labels:

[0034] Housing 100; Display module 110; Mounting bracket 120; First limiting hole 121; Heat dissipation panel 130; Heat dissipation fins 131; First shell 141; Second shell 142; Transparent window 150; First groove 160; Light guide channel 170;

[0035] First reflector 200; connecting part 210; first limiting post 221; second limiting post 222; second reflector 230;

[0036] Drive assembly 300; drive motor 310; gear 320; pin 330; elastic ring 331; through hole 340; annular receiving groove 341; second groove 350; limiting protrusion 360. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0042] According to some embodiments of this utility model, refer to Figures 1 to 5 The adjustable-angle head-up display includes a housing 100, a display module 110, a first reflector 200, and a drive assembly 300. The display module 110 is installed within the housing 100. The first reflector 200 is located within the housing 100 and is rotatably connected to it. The first reflector 200 receives and reflects light from the display module 110. A connecting portion 210 is provided on one side of the first reflector 200, and teeth are provided on the outer peripheral wall of the connecting portion 210. The drive assembly 300 includes a drive motor 310 and a gear 320. The gear 320 is sleeved on the drive end of the drive motor 310, and meshes with the teeth of the connecting portion 210.

[0043] Preferably, the adjustable-angle head-up display also includes a control board and an angle sensor. The angle sensor is used to detect the angle of the first reflector 200. The control board is electrically connected to the angle sensor and the drive motor 310 respectively. The control board can work with the angle sensor to realize intelligent control of the rotation angle of the first reflector 200.

[0044] In one embodiment, the gear 320 is sleeved on the drive end of the drive motor 310. There is friction between the gear 320 and the drive end of the drive motor 310. During the rotation of the drive end of the drive motor 310, the drive motor 310 can drive the gear 320 to rotate. Since the gear 320 meshes with the connecting part 210, it drives the connecting part 210 and the first reflector 200 to rotate, so as to adjust the angle of the first reflector 200.

[0045] In one embodiment, the gear component 320 is directly rotated to overcome the friction between the gear component 320 and the drive end of the drive motor 310, so that the gear component 320 can rotate relative to the drive end of the drive motor 310, thereby driving the connecting part 210 and the first reflector 200 to rotate, so as to adjust the angle of the first reflector 200.

[0046] According to some embodiments of this utility model, refer to Figure 6 and Figure 7The drive assembly 300 also includes a pin 330. The outer peripheral wall of the gear component 320 is provided with a through hole 340 communicating with the inner cavity of the gear component 320. The side wall of the through hole 340 near the inner cavity of the gear component 320 is provided with an annular receiving groove 341. The drive end of the drive motor 310 passes through the gear component 320. The outer peripheral wall of the drive end of the drive motor 310 is provided with a second groove 350. The groove wall of the second groove 350 is provided with a limiting protrusion 360. One end of the pin 330 is provided with an elastic ring 331. The pin 330 passes through the through hole 340. The pin 330 can move radially to cause the elastic ring 331 to reciprocate on both sides of the limiting protrusion 360, so that the elastic ring 331 can reciprocate between the second groove 350 and the annular receiving groove 341. Understandably, because the elastic ring 331 is elastic, when a force is applied to the pin 330 to push or pull the pin 330 radially, the elastic ring 331 can bend and pass over the limiting protrusion 360 when it comes into contact with the limiting protrusion 360. Without external interference, the limiting protrusion 360 can restrict the reciprocating movement of the elastic ring 331 between the second groove 350 and the annular receiving groove 341.

[0047] The first reflector 200 has an automatic angle adjustment mode and a manual angle adjustment mode, wherein:

[0048] Reference Figure 6 In manual angle adjustment mode, the elastic ring 331 is located in the annular receiving groove 341. When the pin 330 rotates around the axis of the gear 320, it can drive the gear 320 to rotate relative to the drive end of the drive motor 310, and drive the first reflector 200 to rotate.

[0049] Reference Figure 7 In automatic angle adjustment mode, the elastic ring 331 is located in the second groove 350. The rotation of the drive end of the drive motor 310 can drive the pin 330 to rotate, thereby driving the gear 320 and the first reflector 200 to rotate.

[0050] The adjustable head-up display can be used in either automatic or manual angle adjustment mode, thus improving installation efficiency and versatility.

[0051] According to some embodiments of this utility model, refer to Figures 2 to 4 The housing 100 contains a mounting bracket 120, which is fixedly mounted to the housing 100 by shock-absorbing bolts. The drive motor 310 is fixedly mounted to the mounting bracket 120. When the housing 100 is subjected to external impact, the shock-absorbing bolts can act as shock absorbers, thereby preventing vibration of the drive motor 310 and the first reflector 200 connected to the drive motor 310. This ensures the stable connection between the drive motor 310 and the first reflector 200 and guarantees the accurate and non-shifting position of the first reflector 200, thus improving projection accuracy.

[0052] According to some embodiments of this utility model, refer to Figure 3 The mounting bracket 120 is provided with a first limiting hole 121, and a first limiting post 221 is provided on one side of the first reflector 200. The first limiting post 221 is inserted into the first limiting hole 121, and the first reflector 200 can rotate around the axis of the first limiting post 221. When the gear component 320 rotates, the first reflector 200 rotates around the axis of the first limiting post 221, and the hole wall of the first limiting hole 121 can prevent the first limiting post 221 from disengaging radially from the first limiting hole 121.

[0053] Furthermore, refer to Figure 3 A second limiting post 222 is provided on the side of the first reflector 200 away from the first limiting post 221. The first limiting post 221 and the second limiting post 222 are coaxially arranged. The housing 100 is provided with a second limiting hole, into which the second limiting post 222 is inserted and can rotate along its own axis. The cooperation of the first limiting post 221 and the second limiting post 222 can restrict the axial movement of the first reflector 200. The mounting bracket 120 and the housing 100 support the first reflector 200 through the first limiting post 221 and the second limiting post 222, respectively, to prevent the first reflector 200 from bending downward to one side under the action of gravity, thus affecting the projection accuracy.

[0054] According to some embodiments of this utility model, the side wall of the housing 100 is provided with a heat dissipation panel 130, and the heat dissipation panel 130 is provided with a plurality of heat dissipation fins 131, which are arranged at intervals. The heat dissipation panel 130 is made of aluminum alloy to improve heat dissipation efficiency, and the heat dissipation fins 131 can enhance the contact area between the heat dissipation panel 130 and the airflow, thereby improving heat exchange efficiency.

[0055] According to some embodiments of this utility model, refer to Figure 2 The housing 100 includes a first housing 141 and a second housing 142. The first housing 141 is located above the second housing 142, with its opening facing downwards and the opening of the second housing 142 facing upwards. The display module 110, the first reflector 200, and the drive assembly 300 are located inside the second housing 142. The first housing 141 and the second housing 142 are detachably connected. The first housing 141 and the second housing 142 can be disassembled from each other to facilitate the replacement or maintenance of internal parts.

[0056] According to some embodiments of this utility model, refer to Figure 2 and Figure 5 The adjustable head-up display also includes a second reflector 230, which is fixedly installed on the housing 100 and located in front of the first reflector 200. The second reflector 230 is used to receive the light from the display module 110 and reflect it back to the first reflector 200.

[0057] Understandably, when the adjustable head-up display uses only the first reflecting mirror 200, which is a curved mirror with three functions—optical path adjustment, aberration correction, and virtual image magnification—the geometry of the curved mirror becomes relatively complex. This makes it difficult to simultaneously perform optical path folding and aberration correction, and the fact that a single mirror handles multiple tasks may prevent the complete elimination of certain aberrations. A single mirror would require a larger size or a more complex installation angle, making it difficult to fit into the confined space of a vehicle. However, with the combined use of the first reflecting mirror 200 and the second reflecting mirror 230, the second reflecting mirror 230 reflects the light from the display module 110 to the target direction and initially compresses the optical path space; the first reflecting mirror 200 focuses on eliminating aberrations such as distortion and field curvature, while simultaneously magnifying the virtual image through curvature design to ensure a clear and distortion-free image in the driver's field of vision. This reduces the complexity of optical simulation. Through functional division and collaborative optimization, the first reflecting mirror 200 and the second reflecting mirror 230 significantly improve imaging quality, system stability, and space utilization.

[0058] According to some embodiments of this utility model, a transparent window 150 is provided on the upper side of the housing 100. The first reflector 200 reflects light to the outside through the transparent window 150, eliminating the complex internal light guide structure of traditional head-up displays and reducing energy loss due to multiple reflections of light within the housing 100. The transparent window 150 is made of a high-transmittance material, such as optical glass or resin, and combined with a sealing design, effectively preventing dust and moisture from entering the housing 100 and improving the lifespan of optical components. In addition, the window position matches the tilt angle of the first reflector 200, ensuring unobstructed light emission and avoiding blurred edges or brightness attenuation of virtual images, thus balancing structural simplicity and image quality.

[0059] According to some embodiments of this utility model, a first groove 160 is provided at the bottom of the housing 100, and the display module 110 is disposed in the first groove 160, with the light-emitting side of the display module 110 facing the second reflector 230. The first groove 160 at the bottom of the housing 100 is used to fix the display module 110. Through mechanical limiting and directional installation, the shock resistance stability and optical path alignment accuracy of the display module 110 are significantly improved, avoiding image shift caused by vehicle bumps. The depth of the first groove 160 is adapted to the thickness of the display module 110, saving internal space of the housing 100. At the same time, the sidewall of the first groove 160 is provided with an integrated heat dissipation structure, such as thermally conductive silicone or metal fins, which quickly conducts the heat generated by the display module 110 during operation to the outside of the housing 100, solving the problem of LCD screen aging or brightness reduction caused by high temperature.

[0060] According to some embodiments of this utility model, a light guide channel 170 is provided inside the housing 100. The light-emitting side of the display module 110 faces the entrance of the light guide channel 170, and the exit of the light guide channel 170 faces the second reflector 230. The light guide channel 170 inside the housing 100 connects the light-emitting side of the display module 110 and the second reflector 230. The high-reflectivity coating or total internal reflection structure on the inner wall of the channel constrains the light propagation path, eliminates stray light interference, and improves light energy utilization. The entrance of the light guide channel 170 is precisely aligned with the light-emitting surface of the display module 110, and the exit of the light guide channel 170 matches the incident angle of the second reflector 230, simplifying the optical path calibration process and reducing assembly tolerance requirements. Furthermore, the physical isolation characteristics of the channel prevent other electronic components such as PCB boards and cables from obstructing the light path, ensuring virtual image uniformity and contrast.

[0061] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable-angle head-up display, characterized in that, include: Casing (100); The display module (110) is installed inside the housing (100); A first reflector (200) is located inside the housing (100). The first reflector (200) is rotatably connected to the housing (100). The first reflector (200) is used to receive and reflect the light from the display module (110). A connecting part (210) is provided on one side of the first reflector (200). The outer peripheral wall of the connecting part (210) is provided with teeth. The drive assembly (300) includes a drive motor (310) and a gear (320). The gear (320) is sleeved on the drive end of the drive motor (310), and the gear (320) meshes with the teeth of the connecting part (210). The drive motor (310) can drive the gear (320) to rotate, thereby driving the first reflector (200) to rotate. The housing (100) is provided with a mounting bracket (120), which is fixedly installed in the housing (100) by shock-absorbing bolts, and the drive motor (310) is fixedly installed in the mounting bracket (120).

2. The adjustable-angle head-up display according to claim 1, characterized in that, The drive assembly (300) further includes a pin (330). The outer peripheral wall of the gear component (320) is provided with a through hole (340) communicating with the inner cavity of the gear component (320). The hole wall of the through hole (340) near the inner cavity of the gear component (320) is provided with an annular receiving groove (341). The outer peripheral wall of the drive end of the drive motor (310) is provided with a second groove (350). The groove wall of the second groove (350) is provided with a limiting protrusion (360). The pin One end of (330) is provided with an elastic ring (331), and the pin (330) passes through the through hole (340); the pin (330) can move radially to make the elastic ring (331) reciprocate on both sides of the limiting protrusion (360), so that the elastic ring (331) can reciprocate between the second groove (350) and the annular receiving groove (341). The first reflector (200) has an automatic angle adjustment mode and a manual angle adjustment mode, wherein: In manual angle adjustment mode, the elastic ring (331) is located in the annular receiving groove (341), and the rotation of the pin (330) can drive the gear (320) to rotate relative to the drive end of the drive motor (310), and drive the first reflector (200) to rotate. In automatic angle adjustment mode, the elastic ring (331) is located in the second groove (350), and the drive end of the drive motor (310) can rotate through the pin (330) to drive the gear (320) to rotate, and drive the first reflector (200) to rotate.

3. The adjustable-angle head-up display according to claim 2, characterized in that, The mounting bracket (120) is provided with a first limiting hole (121), and a first limiting post (221) is provided on one side of the first reflector (200). The first limiting post (221) is inserted into the first limiting hole (121), and the first reflector (200) can rotate around the axis of the first limiting post (221).

4. The adjustable-angle head-up display according to claim 3, characterized in that, The first reflector (200) has a second limiting post (222) on the side away from the first limiting post (221). The first limiting post (221) and the second limiting post (222) are coaxially arranged. The housing (100) has a second limiting hole. The second limiting post (222) is inserted into the second limiting hole and can rotate along its own axis.

5. The adjustable-angle head-up display according to claim 1, characterized in that, The side wall of the housing (100) is provided with a heat dissipation panel (130), and the heat dissipation panel (130) is provided with a plurality of heat dissipation fins (131), which are arranged at intervals.

6. The adjustable-angle head-up display according to claim 1, characterized in that, The housing (100) includes a first housing (141) and a second housing (142), the display module (110), the first reflector (200) and the driving assembly (300) are located inside the second housing (142), and the first housing (141) and the second housing (142) are detachably connected.

7. The adjustable-angle head-up display according to claim 1, characterized in that, The adjustable head-up display also includes a second reflector (230), which is fixedly installed on the housing (100). The second reflector (230) is located in front of the first reflector (200) and is used to receive the light from the display module (110) and reflect it to the first reflector (200).

8. The adjustable-angle head-up display according to claim 1, characterized in that, The upper side of the housing (100) is provided with a transparent window (150), through which the first reflector (200) reflects light to the outside.

9. The adjustable-angle head-up display according to claim 7, characterized in that, The bottom of the housing (100) is provided with a first groove (160), and the display module (110) is disposed in the first groove (160), with the light-emitting side of the display module (110) facing the second reflector (230).

10. The adjustable-angle head-up display according to claim 9, characterized in that, The housing (100) is provided with a light guide channel (170), the light emitting side of the display module (110) faces the entrance of the light guide channel (170), and the exit of the light guide channel (170) faces the second reflector (230).

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