Head-up display and vehicle

Abstract

The embodiment of the utility model relates to the technical field of head-up displays, and particularly discloses a head-up display and a vehicle, the head-up display comprises a shell, the shell is provided with an accommodating cavity, a first window and a second window, and the first window and the second window are both communicated with the accommodating cavity; the lens mechanism is accommodated in the accommodating cavity; the heat dissipation assembly is detachably arranged on the shell and covers the first window; the image generation unit is arranged between the heat dissipation assembly and the shell, the image generation unit corresponds to the lens mechanism through the first window, and the image generation unit emits light rays with images to the lens mechanism and then projects the light rays to the outside through the second window; wherein the lens mechanism, the image generation unit and the heat dissipation assembly are sequentially stacked, and the heat dissipation assembly and the shell jointly clamp the image generation unit. Through the above mode, the heat dissipation assembly and the housing can be used to clamp the image generation unit together, the structure of the head-up display is simplified, and there is no need to arrange an independent optical cavity structural member.

Description

Technical Field

[0001] This utility model relates to the field of head-up display technology, and in particular to a head-up display and a means of transportation. Background Technology

[0002] Head-up displays (HUDs) are commonly used automotive aids that connect to a vehicle and project relevant driving information onto the windshield. Drivers can obtain this information, such as speed, simply by looking at the windshield. An HUD consists of a housing, optical components, and an image generation unit. The image generation unit provides a light source, which generates an image that is then reflected by multiple lenses within the optical components before being projected onto the windshield.

[0003] In the process of realizing this utility model, the inventors discovered that: Currently, head-up displays that can adjust the projection angle include a housing, a lens mechanism, an image generation unit, and a heat dissipation component. The housing is provided with a receiving cavity, and the lens mechanism and the image generation unit are both housed in the receiving cavity. In order to realize the display and projection of images, the optical component and the image generation unit need to have corresponding optical cavity structural components in the receiving cavity to realize the fixed assembly of the image generation unit. During the assembly process, the optical cavity structural components need to be assembled with other parts before the assembly can be completed, making the assembly steps of the head-up display cumbersome. Utility Model Content

[0004] This utility model provides a head-up display and a vehicle, and the main technical problem it solves is that the assembly process of the head-up display is complicated by the separate optical cavity structure component.

[0005] To solve the above-mentioned technical problems, the present invention provides a head-up display, comprising: a housing having a receiving cavity, a first window, and a second window, both of which communicate with the receiving cavity; a lens mechanism housed in the receiving cavity; a heat dissipation assembly detachably disposed in the housing and covering the first window; and an image generation unit disposed between the heat dissipation assembly and the housing, wherein the image generation unit corresponds to the lens mechanism via the first window, and the image generation unit emits light carrying an image to the lens mechanism and then projects it to the outside through the second window; wherein the lens mechanism, the image generation unit, and the heat dissipation assembly are stacked sequentially, and the heat dissipation assembly and the housing together hold the image generation unit.

[0006] Optionally, the image generation unit includes a backlight assembly and a display component, the display component covering the first window, the backlight assembly being fixed to the heat dissipation assembly, and a cavity being provided between the backlight assembly and the display component.

[0007] Optionally, the heat dissipation assembly includes a heat dissipation housing and a heat-conducting layer. The heat dissipation housing covers the first window. The heat dissipation housing is provided with a receiving groove, which communicates with the receiving cavity. The backlight assembly is received in the receiving groove, and the heat-conducting layer fills the space between the backlight assembly and the bottom of the receiving groove.

[0008] Optionally, the bottom wall of the receiving slot is provided with a positioning post, the backlight panel is provided with a first insertion hole, the lens is provided with a second insertion hole, and the positioning post is inserted into the first insertion hole and the second insertion hole in sequence and then extends out.

[0009] Optionally, the head-up display includes a screw connector; the bottom wall of the receiving groove of the heat dissipation housing is provided with a screw hole, the control board is provided with a first through hole, the lens is provided with a second through hole, and the screw connector passes through the first through hole and the second through hole in sequence and is screwed into the screw hole.

[0010] Optionally, there are two positioning posts, two first sockets, and two second sockets. One positioning post is inserted into one first socket and one second socket in sequence and then extends out. The other positioning post is inserted into another first socket and another second socket in sequence and then extends out.

[0011] Optionally, the head-up display further includes a light-shielding component; the lens mechanism includes a first lens and a second lens, the light-shielding component covers the gap between the display component and the first lens, the first lens corresponds to the display component at a first angle, the second lens corresponds to the first lens at a second angle, and the second lens is rotatably disposed within the receiving cavity.

[0012] Optionally, the lens mechanism further includes a drive assembly for driving the second lens to rotate.

[0013] Optionally, the housing includes an upper shell, a lower shell, and a light-transmitting cover. The second window is disposed on the upper shell, and the light-transmitting cover covers the second window. The first window is disposed on the lower shell, and the upper shell and the lower shell together enclose the receiving cavity.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is to provide a means of transportation, including the above-mentioned head-up display.

[0015] The beneficial effects of this utility model embodiment are as follows: Unlike existing technologies, this utility model embodiment provides a head-up display (HUD) including a housing, a lens mechanism, a heat dissipation assembly, and an image generation unit. The housing has a receiving cavity, a first window, and a second window, both of which communicate with the receiving cavity. The lens mechanism is housed within the receiving cavity. The heat dissipation assembly is detachably disposed on the housing and covers the first window. The image generation unit is disposed between the heat dissipation assembly and the housing. The image generation unit corresponds to the lens mechanism via the first window, and emits light carrying an image to the lens mechanism, which is then projected to the outside through the second window. The lens mechanism, the image generation unit, and the heat dissipation assembly are stacked sequentially, and the heat dissipation assembly and the housing together clamp the image generation unit. Through this structure, this utility model embodiment can utilize the structure of the heat dissipation assembly and the housing to clamp the image generation unit, forming a cavity-like structure during the assembly of the heat dissipation assembly. This simplifies the structure of the HUD, thereby simplifying the assembly steps, reducing manufacturing costs, and the sequentially stacked lens mechanism, image generation unit, and heat dissipation assembly facilitate the assembly of the HUD, improving the efficiency of mass production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application 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 the drawings without creative effort.

[0017] Figure 1 This is an exploded view of a head-up display provided in an embodiment of the present invention;

[0018] Figure 2 This is an assembly diagram of a head-up display provided in an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a head-up display provided in an embodiment of the present invention;

[0020] Figure 4 This is an enlarged schematic diagram of a heat dissipation housing for a head-up display provided in an embodiment of the present invention;

[0021] Figure 5 This is an enlarged schematic diagram of a backlight assembly for a head-up display provided in an embodiment of the present invention;

[0022] Figure 6This is a schematic diagram of a head-up display with a hidden upper shell and a light-transmitting component provided in an embodiment of this utility model;

[0023] Figure 7 This is a cross-sectional schematic diagram of a head-up display provided in an embodiment of the present utility model from another perspective;

[0024] Figure 8 This is an enlarged schematic diagram of the structure of a driving component and a second lens provided in an embodiment of this utility model.

[0025] 1000. Head-up display;

[0026] 1. Shell; 11. Receiving cavity; 12. First window; 13. Second window; 14. First support platform; 141. First rotating groove; 15. Second support platform; 151. Second rotating groove; 1a. Upper shell; 1b. Lower shell; 1c. Light-transmitting cover;

[0027] 2. Lens mechanism; 21. Drive assembly; 211. Circuit board; 212. Drive component; 2121. Motor; 2122. Worm gear; 2123. Worm; 22. First lens; 23. Second lens; 231. First rotating shaft; 232. Second rotating shaft; 24. First holding member; 25. Second holding member;

[0028] 3. Heat dissipation assembly; 31. Heat dissipation housing; 311. Receiving groove; 3111. Positioning post; 3112. Screw hole; 312. Heat dissipation fins; 32. Thermal conductive layer;

[0029] 4. Image generation unit; 41. Backlight assembly; 411. Socket; 412. Through hole; 41a. Backlight circuit board; 41a1. First socket; 41a2. First screw hole; 41b. Light modulation lens; 41b1. Second socket; 41b2. Second screw hole; 42. Display component; 43. Cavity; Detailed Implementation

[0030] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0032] Currently, head-up displays (HUDs) on the market can be divided into three main categories based on their imaging methods and forms: Combiner HUDs (C-HUDs), Windshield HUDs (W-HUDs), and Augmented Reality HUDs (AR-HUDs). When a HUD uses a TFT-LCD imaging method, the image generation unit consists of a backlight assembly and an LCD display. Due to the structure of the backlight assembly and LCD display, existing image generation units incorporate a cavity structure to ensure image quality. During HUD assembly, this cavity structure must first be assembled with other components of the image generation unit, making the assembly process cumbersome and resulting in low assembly efficiency.

[0033] To resolve the above technical issues, please refer to Figure 1 and Figure 2 This utility model provides a head-up display 1000, including a housing 1, a lens mechanism 2, a heat dissipation assembly 3, and an image generation unit 4. The housing 1 has a receiving cavity 11, a first window 12, and a second window 13, both of which communicate with the receiving cavity 11. The heat dissipation assembly 3 is detachably mounted on the housing 1 and covers the first window 12. The image generation unit 4 is disposed between the heat dissipation assembly 3 and the housing 1. The image generation unit 4 generates light carrying an image when powered on. The lens mechanism 2 is housed within the receiving cavity 11 to reflect and adjust the light carrying the image, projecting it to the outside at the desired angle and direction. The image generation unit 4 corresponds to the lens mechanism 2 via the first window 12, and emits light carrying the image to the lens mechanism 2, which is then projected to the outside via the second window 13. By using an assembly structure where the heat dissipation assembly 3 and the housing 1 jointly hold the image generation unit 4, the original optical cavity structure is eliminated, simplifying the structure of the head-up display 1000. This simplifies the assembly steps of the head-up display 1000, improves production efficiency, and reduces production costs.

[0034] It should be noted that the heat dissipation shell (not shown) of the heat dissipation component 3 is used as part of the structure of the housing 1 in the actual assembly, thereby shielding the second window 13. And by relying on the heat dissipation component 3 as part of the housing 1, the heat dissipation shell of the heat dissipation component 3 and the housing 1 are structurally constructed in a way similar to a light cavity, so that the head-up display 1000 eliminates the need to set up a light cavity structure.

[0035] In some embodiments, please refer to Figure 1 and Figure 3 The image generation unit 4 includes a backlight assembly 41 and a display element 42. The backlight assembly 41 is used to illuminate the display element 42 and provide light for the display element 42 to display images. The display element 42 covers the first window 12. The backlight assembly 41 is fixed to the heat dissipation assembly 3, and a cavity 43 is left between the backlight assembly 41 and the display element 42. This cavity 43 structurally achieves an effect similar to that achieved by the optical cavity structure of the existing head-up display 1000. In this embodiment, it can be achieved by simply assembling the image generation unit 4 and the heat dissipation assembly 3, which simplifies the assembly steps of the head-up display 1000.

[0036] For the heat dissipation component 3 mentioned above, please refer to... Figure 1 and Figure 4 The heat dissipation assembly 3 includes a heat dissipation housing 31 (i.e., the housing 1 of the heat dissipation assembly 3 mentioned above) and a heat-conducting layer 32. The heat dissipation housing 31 covers the first window 12. The heat dissipation housing 31 is provided with a receiving groove 311, which is connected to the receiving cavity 11. Specifically, the opening of the receiving groove 311 is connected to the first window 12. The backlight assembly 41 is housed in the receiving groove 311, so that the image generation unit 4 housed in the receiving groove 311 can project the generated light carrying the image into the receiving cavity 11 through the first window 12. The heat-conducting layer 32 is filled between the backlight assembly 41 and the bottom of the receiving groove 311 to improve the heat dissipation efficiency of the backlight assembly 41.

[0037] Understandably, the heat dissipation component 3 achieves heat dissipation for the backlight component 41 by increasing the heat dissipation area, thereby improving heat dissipation efficiency. Specifically, the outer surface of the heat dissipation housing 31 is provided with heat dissipation fins 312. The heat generated by the backlight component 41 in the working state is transferred to the heat dissipation housing 31 connected thereto by the heat conduction layer 32. The heat dissipation housing 31 increases the area for heat exchange with the external environment by relying on the heat dissipation fins 312, thereby improving heat dissipation efficiency. This allows the heat generated by the backlight component 41 to be quickly transferred to the surrounding environment in sequence through the heat conduction layer 32 and the heat dissipation fins 312 of the heat dissipation housing 31.

[0038] It is understood that the aforementioned thermal conductive layer 32 should be a material with high thermal conductivity and adhesion, including but not limited to: thermally conductive double-sided tape, silicone thermally conductive materials, non-silicone thermally conductive materials, thermally conductive grease and thermally conductive gel, etc. The thermal conductive layer 32 can be any one of the above materials or a combination of two or more of the above materials.

[0039] In some embodiments, please refer to Figure 4 The bottom wall of the receiving slot 311 is provided with a positioning post 3111, and the backlight assembly 41 is provided with a socket 411. The positioning post 3111 is inserted into the socket 411 and then extends out to achieve quick positioning and connection of the backlight assembly 41.

[0040] It is understood that the number of positioning posts 3111 and sockets 411 is greater than or equal to two. For example, in this embodiment, there are two positioning posts 3111 and two sockets 411. The two sockets 411 can be set on the same side of the backlight assembly 41 or on opposite sides of the backlight assembly 41. The two positioning posts 3111 are respectively set with the two sockets 411. The cooperation structure between the two positioning posts 3111 and the two sockets 411 avoids the backlight assembly 41 from rotating when it is assembled onto the heat sink housing 31 for subsequent assembly operations. Furthermore, the plug-in structure of the positioning posts 3111 and the sockets 411 forms a preliminary positioning effect for the backlight assembly 41 during the installation process, which facilitates subsequent assembly operations.

[0041] For further details, please refer to Figure 1 , Figure 4 and Figure 5 The head-up display 1000 also includes screw connectors; the bottom wall of the receiving groove 311 of the heat sink housing 31 is also provided with screw holes 3112; the backlight assembly 41 is also provided with through holes 412, and the screw connectors pass through the through holes 412 and are screwed into the screw holes 3112. The backlight assembly 41, through the two insertion holes 411 and the through hole 412, in conjunction with the positioning post 3111 and the screw hole 3112 provided in the receiving groove 311 of the heat sink housing 31, realizes the insertion and screw connection and fixation between the backlight assembly 41 and the heat sink housing 31, ensuring a stable connection between the backlight assembly 41 and the receiving groove 311.

[0042] For the backlight assembly 41 mentioned above, please refer to... Figure 5The backlight assembly 41 includes a backlight circuit board 41a, a light source (not shown), and a light modulation lens 41b. The light source is fixed on the backlight circuit board 41a, which provides power to the light source and also controls the on / off state of the current output to the light source and the magnitude of the output power. The light modulation lens 41b is correspondingly arranged with the light source to perform shaping, diffusion, collimation, and homogenization modulation processes on the light output from the light source. Furthermore, the light source and the backlight circuit board 41a serve as the actual heat source of the backlight assembly 41. A heat dissipation component 3 is disposed on the side of the backlight circuit board 41a facing away from the light source to improve the heat dissipation efficiency of the backlight assembly 41 and provide a stable working environment for the backlight assembly 41.

[0043] Furthermore, the backlight circuit board 41a is provided with a first socket 41a1, and the light modulation lens 41b is provided with a second socket 41b1. The first socket 41a1 and the second socket 41b1 together constitute the aforementioned socket 411. The positioning post 3111 passes through the first socket 41a1 and the second socket 41b1 in sequence and then extends out. The positioning post 3111 and the cooperation between the first socket 41a1 and the second socket 41b1 realize the positioning of the backlight circuit board 41a and the light modulation lens 41b. The backlight circuit board 41a is also provided with a first screw hole 41a2, and the light modulation lens 41b is provided with a second screw hole 41b2. The first screw hole 41a2 and the second screw hole 41b2 constitute the aforementioned through hole 412. The screw connector passes through the first screw hole 41a2 and the second screw hole 41b2 in sequence and then screws into the screw hole 3112 to realize the screw fixing of the backlight circuit board 41a and the light modulation lens 41b. By using the aforementioned positioning post 3111 to engage with the first socket 41a1 and the second socket 41b1, and the screw connection to the first screw hole 41a2, the second screw hole 41b2 and the screw hole 3112, the separate assembly and positioning steps of the backlight circuit board 41a and the light modulation lens 41b are saved, the assembly process of the backlight assembly 41 is simplified, and the assembly efficiency of the head-up display 1000 is improved.

[0044] For lens mechanism 2 mentioned above, please refer to... Figure 1 The lens mechanism 2 includes a first lens 22 and a second lens 23. The first lens 22 is at a first angle to the display element 42 so that the first lens 22 transmits the image light emitted by the display element 42 to the second lens 23. The second lens 23 is at a second angle to the first lens 22 so that the image light deflected by the first lens 22 is deflected a second time and then projected to the outside through the second window 13. The second lens 23 is rotatably disposed in the receiving cavity 11 so that the user can adjust the projection angle of the output image by rotating the second lens 23, thereby adapting to the needs of different users.

[0045] It is understandable that the setting of the first angle and the second angle is determined by the specific positions of the first lens 22 and the second lens 23 in the receiving cavity 11. As long as the light emitting the image emitted by the image generation unit 4 can be smoothly projected out from the second window 13 according to the preset trajectory, the specific angle data will not be described in detail in this embodiment.

[0046] In some embodiments, to prevent interference from external light between the display element 42 and the first lens 22, and to ensure high-quality transmission of image-carrying light between the display element 42 and the first lens 22, the head-up display 1000 also includes a light-shielding member (not shown) that covers the gap between the display element 42 and the first lens 22 to block external light from entering the gap and prevent stray light from entering the space, thus avoiding interference from stray light on the image and significantly improving image clarity, color reproduction, and contrast.

[0047] It should be noted that, in this embodiment, considering the layout of the first lens 22 and the second lens 23, since it is necessary to ensure that the light rays carrying the image emitted by the image generation unit 4 can be smoothly projected along the preset trajectory, the first lens 22 needs to ensure that the light rays carrying the image emitted by the image generation unit 4 are deflected to the second lens 23. Therefore, the first lens 22 is a reflector that does not allow light to pass through. The second lens 23 needs to ensure that the light rays carrying the image emitted by the image generation unit 4 are deflected to the second window 13. Therefore, the second lens 23 is a reflector that does not allow light to pass through. Of course, in other embodiments, as the layout of the first lens 22 and the second lens 23 of the lens mechanism 2 changes and the preset trajectory of the light rays carrying the image emitted by the image generation unit changes, the first lens 22 and the second lens 23 can be selected as: a reflector, a lens, etc.

[0048] Regarding the structure of the second lens 23 rotating within the receiving cavity 11, please refer to [link / reference]. Figure 1 and Figure 6 The second lens 23 includes a first rotating shaft 231 and a second rotating shaft 232 disposed opposite to each other. The first rotating shaft 231 is disposed at one end of the second lens 23, and the second rotating shaft 232 is disposed at the other end of the second lens 23. The housing 1 is provided with a first support platform 14 and a second support platform 15. The first support platform 14 is provided with a first rotating groove 141, and the second support platform 15 is provided with a second rotating groove 151. The first rotating shaft 231 is received in the first rotating groove 141, and the second rotating shaft 232 is received in the second rotating groove 151.

[0049] For further details, please refer to the following: Figure 7To ensure that the first rotating shaft 231 is housed in the first rotating groove 141 and the second rotating shaft 232 is housed in the second rotating groove 151, and that the first rotating shaft 231 and the second rotating shaft 232 do not undergo unexpected displacement, the lens mechanism 2 also includes a first pressing member 24 and a second pressing member 25. The first pressing member 24 is disposed on the opening of the first rotating groove 141 and abuts against the first rotating shaft 231, and the second pressing member 25 is disposed on the second rotating groove 151 and abuts against the second rotating shaft 232. Through the limiting constraint of the first rotating shaft 231 by the first pressing member 24 and the groove wall of the first rotating groove 141, and the limiting constraint of the second rotating shaft 232 by the second pressing member 25 and the groove wall of the second rotating groove 151, the first rotating shaft 231 and the second rotating shaft 232 do not undergo unexpected displacement or shaking during rotation, thereby improving the rotational stability of the first rotating shaft 231 and the second rotating shaft 232.

[0050] It should be noted that the manner in which the first pressing member 24 is disposed on the first rotating groove 141 and the manner in which the second pressing member 25 is disposed on the second rotating groove 151 include, but are not limited to, screw connection, snap connection, magnetic attraction, tenon and mortise, binding and other methods. Furthermore, the manner in which the first pressing member 24 is disposed on the first rotating groove 141 and the manner in which the second pressing member 25 is disposed on the second rotating groove 151 can be any combination of the above two methods. For example, in this embodiment, the first pressing member 24 is screwed on the first rotating groove 141 and the second pressing member 25 is screwed on the second rotating groove 151.

[0051] In some embodiments, along the direction perpendicular to the rotation axis of the second lens 23, the cross-sectional shape of the first rotation groove 141 and the second rotation groove 151 is V-shaped to reduce the contact area between the first rotating shaft 231 and the first rotation groove 141, thereby reducing the frictional force during rotation; and to reduce the contact area between the second rotating shaft 232 and the second rotation groove 151, thereby reducing the frictional force during rotation.

[0052] In this embodiment, please refer to Figure 1 The second lens 23 is rotated using a drive assembly 21. Specifically, the drive assembly 21 includes an electrically connected circuit board 211 and a drive component 212. The circuit board 211 controls the rotation speed of the drive component 212, the forward and reverse rotation of the output shaft of the drive component 212, etc. The drive component 212 is connected to either the first rotating shaft 231 or the second rotating shaft 232. For example, in this embodiment, the drive component 212 is rotatably connected to the second rotating shaft 232.

[0053] It is understood that the drive component 212 may be selected by structures including, but not limited to, a combination of motor 2121 and worm gear 2122, worm 2123, or a combination of motor 2121 and gear set. In this embodiment, for example, the drive component 212 adopts a structure of motor 2121 and worm gear 2122, worm 2123.

[0054] For details, please refer to Figure 8 The driving component 212 includes a motor 2121, a worm gear 2122, and a worm 2123. The worm 2123 is fixed to the output shaft of the motor 2121, and the worm gear is fixed to the lens mechanism. In an exemplary case, the worm gear 2122 is fixed to the second lens 23. The worm gear 2122 meshes with the worm 2123. The motor 2121 drives the worm 2123 to rotate, thereby driving the worm gear 2122 to rotate, which in turn drives the second lens 23 to rotate, so that the image light projected by the projection component will deflect at an angle. Furthermore, due to the reverse travel self-locking property of the worm gear 2122 and the worm 2123 (i.e., only the worm gear 2123 can drive the worm gear 2122, and the worm gear 2122 cannot drive the worm 2123), it is ensured that the driving component 21 drives the projection component to project at a precise angle, and it is not easy to produce unexpected deflection angle wobbling due to external forces, thus ensuring the user experience of the head-up display 1000.

[0055] For housing 1 mentioned above, please refer to... Figure 1 The housing 1 includes an upper housing 1a, a lower housing 1b, and a light-transmitting cover 1c. A second window 13 is disposed on the upper housing 1a, and the light-transmitting cover 1c covers the second window 13. The light-transmitting cover 1c allows light to pass through and also serves to prevent dust and water, protecting the components housed in the housing cavity 11. A first window 12 is disposed on the lower housing 1b. The upper housing 1a and the lower housing 1b together enclose the housing cavity 11. The separate upper housing 1a and the lower housing 1b form a detachable housing 1 structure, which facilitates the assembly and disassembly of the head-up display 1000.

[0056] It should be noted that the head-up display 1000 also includes a main control board (not shown), which is housed in the receiving cavity 11. The main control board is electrically connected to the lens mechanism 2 and the image generation unit 4 respectively. The main control board is used to provide a medium for the image generation unit 2 and the projection assembly 3 to communicate with the outside world and exchange information. The main control board can also control the image content displayed by the image generation unit 2 and control the rotation angle of the projection assembly.

[0057] In this embodiment, the head-up display 1000 includes a housing 1, a lens mechanism 2, a heat dissipation assembly 3, and an image generation unit 4. The housing 1 is provided with a receiving cavity 11, a first window 12, and a second window 13, both of which are connected to the receiving cavity 11. The heat dissipation assembly 3 is detachably disposed on the housing 1 and covers the first window 12. The image generation unit 4 is disposed between the heat dissipation assembly 3 and the housing 1. The image generation unit 4 is used to generate light with an image when powered on. The lens mechanism 2 is housed in the receiving cavity 11 and is used to reflect and adjust the light with the image so that it is projected to the outside at the required angle and direction. The image generation unit 4 corresponds to the lens mechanism 2 through the first window 12. The image generation unit 4 emits light with an image to the lens mechanism 2 and then projects it to the outside through the second window 13. With the above structure, the image generating unit 4 is held together by the heat dissipation component 3 and the housing 1, so that the head-up display 1000 no longer needs to set up a separate optical cavity structure. It can achieve the same effect as setting up an optical cavity structure simply by assembling the heat dissipation component 3 and the housing 1 in sequence. This simplifies the structure of the head-up display 1000, saves the steps of assembling the head-up display 1000, and improves the production efficiency of the head-up display 1000. In addition, the structure of the lens mechanism 2, the image generating unit 4 and the heat dissipation component 3 stacked in sequence makes the structure of the head-up display 1000 more regular and the assembly difficulty is greatly reduced.

[0058] This utility model also provides a vehicle embodiment, which includes the head-up display 1000 described above. For details on the specific structure and function of the head-up display 1000, please refer to the above embodiment, which will not be repeated here.

[0059] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A heads-up display, characterized in that, include: The housing is provided with a receiving cavity, a first window, and a second window, both of which are in communication with the receiving cavity; The lens mechanism is housed in the receiving cavity; A heat dissipation component is detachably mounted on the housing and covers the first window; An image generation unit is disposed between the heat dissipation component and the housing. The image generation unit corresponds to the lens mechanism through the first window. The image generation unit emits light carrying an image to the lens mechanism and then projects it to the outside through the second window. The lens mechanism, the image generation unit, and the heat dissipation component are stacked sequentially, and the heat dissipation component and the housing together hold the image generation unit.

2. The head-up display according to claim 1, characterized in that, The image generation unit includes a backlight assembly and a display component. The display component covers the first window. The backlight assembly is fixed to the heat dissipation assembly, and a cavity is left between the backlight assembly and the display component.

3. The head-up display according to claim 2, characterized in that, The heat dissipation assembly includes a heat dissipation housing and a heat-conducting layer. The heat dissipation housing covers the first window. The heat dissipation housing is provided with a receiving groove, which communicates with the receiving cavity. The backlight assembly is received in the receiving groove, and the heat-conducting layer fills the space between the backlight assembly and the bottom of the receiving groove.

4. The head-up display according to claim 3, characterized in that, The bottom wall of the receiving slot is provided with a positioning post, and the backlight assembly is provided with a socket. The positioning post is inserted into the socket and then extends out.

5. The head-up display according to claim 4, characterized in that, The head-up display includes screw connections; The bottom wall of the receiving groove of the heat dissipation housing is also provided with screw holes; The backlight assembly is provided with a through hole, and the screw connector passes through the through hole in sequence and is screwed into the screw hole.

6. The head-up display according to claim 4, characterized in that, The number of positioning posts and the number of insertion holes are both two, with one positioning post being inserted into one insertion hole and then extending out.

7. The head-up display according to any one of claims 2-6, characterized in that, The head-up display also includes a light-shielding component; The lens mechanism includes a first lens and a second lens. The light-shielding member covers the gap between the display element and the first lens. The first lens and the display element are aligned at a first angle. The second lens and the first lens are aligned at a second angle. The second lens is rotatably disposed within the receiving cavity.

8. The head-up display according to claim 7, characterized in that, The lens mechanism further includes a drive assembly for driving the second lens to rotate.

9. The head-up display according to claim 7, characterized in that, The housing includes an upper shell, a lower shell, and a light-transmitting cover. The second window is disposed on the upper shell, and the light-transmitting cover covers the second window. The first window is disposed on the lower shell. The upper shell and the lower shell together enclose the receiving cavity.

10. A means of transportation, characterized in that, Including the head-up display as described in any one of claims 1-9.

Images