Projection device and vehicle

Abstract

Projection device, characterized in that the projection device is mounted on a vehicle, wherein the projection device comprises an anti-dust assembly, a housing, a projection assembly and a lens, and wherein the housing comprises a receiving chamber, wherein the projection assembly and the lens are provided within the receiving chamber, and wherein a side of the housing provided with the lens has a cover plate, and wherein the cover plate has a window opposite the lens, so that the lens projects an image through the window, and wherein the anti-dust assembly comprises a drive unit and an anti-dust unit, wherein the anti-dust unit comprises a moving part, and wherein the drive unit is configured to drive the moving part to move the moving part relative to the cover plate, and wherein When the moving part is in the first position, the window is covered by the moving part, and when the moving part is in the second position, a position of the moving part and a position of the window do not overlap, so that the lens is in an appearing state.

Description

TECHNICAL FIELD

[0001] The present utility model relates to the field of automotive engineering, in particular to a projection device and a vehicle. STATE OF THE ART

[0002] With the popularization and application of smart cars, there are more and more entertainment functions in the cars, which make it possible to use projectors in cars.

[0003] On-board projectors are typically mounted in vehicles and primarily consist of a projection lens, a light source system, and a display system. During operation, the projection lens projects light onto the display system to form an image. To prevent dust from contaminating the lens, a removable dust cover is commonly used in front of the lens. This means that the dust cover is removed when the projector is in use and attached to the lens when not in use.

[0004] However, this traditional dust cover has a small coverage area and poor anti-dust effect and has no anti-collision function. CONTENT OF THE PRESENT UTILITY MODEL

[0005] The embodiment of the present utility model proposes a projection device and a vehicle having a better anti-dust property and a better anti-collision property.

[0006] In the first aspect, the present utility model proposes a projection device, wherein the projection device comprises an anti-dust assembly, a housing, a projection assembly, and a lens, and wherein the housing comprises a receiving chamber, wherein the projection assembly and the lens are provided within the receiving chamber, and wherein a side of the housing provided with the lens has a cover plate, and wherein the cover plate has a window opposite the lens so that the lens projects an image through the window, and wherein the anti-dust assembly comprises a drive unit and an anti-dust unit, wherein the anti-dust unit comprises a movable part, and wherein the drive unit is configured such that the drive unit drives the movable part to move the movable part relative to the cover plate, and wherein when the movable part is in the first position,the window is covered by the movable part, and when the movable part is in the second position, a position of the movable part and a position of the window do not overlap with each other, so that the lens is in an appearing state.

[0007] Optionally, in the projection device described above, the drive unit comprises a drive motor and a transmission device, wherein the transmission device is provided between the drive motor and the movable part and is configured such that a moving force of the drive unit is transmitted to the movable part.

[0008] Optionally, in the projection device described above, the movable part comprises a movable body and a shaft, wherein the shaft is configured such that the shaft rotates around the axis of the shaft under the drive of the drive unit so that the movable body covers the window.

[0009] Optionally, in the projection device described above, a first end of the movable body is connected to the shaft, wherein a second end of the movable body rotates around the shaft, wherein when the movable part is in the first position, the second end of the movable body covers the window.

[0010] Optionally, in the projection device described above, the shaft is arranged parallel to an output shaft of the drive motor, wherein the gear device comprises an input gear and an output gear, and wherein the input gear is connected to the output shaft, and wherein the output gear is connected to the shaft, and wherein the input gear is toothed with the output gear.

[0011] Optionally, in the projection device described above, the rotation angle range of the movable body around the shaft is 0° - 90°, where when the movable body is in the horizontal direction, the movable body is in the first position, and when the movable body is in the vertical direction, the movable body is in the second position.

[0012] Optionally, in the projection device described above, an extension bracket is provided on a bottom of the housing, which is configured to firmly connect the housing to the vehicle body, wherein the extension bracket is connected to the vehicle body by a thread.

[0013] Optionally, in the projection device described above, the projection device comprises a depth camera, wherein the depth camera and the lens are arranged side by side, and wherein when the movable part is in the first position, both the lens and the depth camera are covered by the movable body.

[0014] Optionally, in the projection device described above, the projection assembly comprises a light source, an optical path unit, and a digital micromirror chip, wherein the optical path unit and the digital micromirror chip are provided on a laser radiation path of the light source to reflect the laser radiation path of the light source to the lens, which projects the light onto the screen to form an image.

[0015] In the second aspect, the present utility model proposes a vehicle comprising a vehicle body and a projection device as described above, wherein the vehicle body has a front collision beam of the vehicle and wherein the projection device is fixedly mounted on the front collision beam of the vehicle.

[0016] The present utility model proposes a projection device and a vehicle, wherein the projection device is mounted on the vehicle, and wherein the projection device comprises an anti-dust assembly, a housing, a projection assembly, and a lens, and wherein the housing comprises a receiving chamber, wherein the projection assembly and the lens are provided within the receiving chamber, and wherein a side of the housing provided with the lens has a cover plate, and wherein the cover plate has a window opposite the lens so that the lens projects an image through the window, and wherein the anti-dust assembly comprises a drive unit and an anti-dust unit, wherein the anti-dust unit comprises a movable part, and wherein the drive unit is configured such that the drive unit drives the movable part to move the movable part relative to the cover plate,and wherein, when the movable part is in the first position, the window is covered by the movable part, and when the movable part is in the second position, a position of the movable part and a position of the window do not overlap with each other, so that the lens is in an appearing state. The projection device and vehicle provided by this utility model have better anti-dust properties and better anti-collision properties.

[0017] The construction of a projection device and a vehicle provided by this utility model, as well as its other utility model objects and advantageous effects, will be more clearly understood from the description of the preferred embodiment taken in conjunction with the accompanying drawings. SHORT DESCRIPTION OF THE DRAWING Fig. 1 is an exploded view of a projection device according to an embodiment of the present application. Fig. 2 is a schematic diagram of a structure of a projection device according to an embodiment of the present application. Fig. 3 is a schematic diagram of a structure of an anti-dust assembly in a projection device according to an embodiment of the present application in a closed state. Fig. 4 is a schematic diagram of a structure of an anti-dust assembly in a projection apparatus according to an embodiment of the present application in an opened state. Fig. 5 is a schematic representation of a gear device in a projection device according to an embodiment of the present application.

[0018] Notes on the attached drawings: 10 projection device; 100 box bodies; 110 drive unit; 111 drive motor; 112 Gearbox; 113 output shaft; 114 input gear; 115 output gear; 121 moving part; 122 movable body; 123- wave; 200 cases; 210 recording chamber; 220 cover plate; 230 windows; 240 extension bracket; 250 depth camera; 260- Mounting bracket; 270 screw; 280 fastening column; 290 positioning assembly; 300 lens. DETAILED DESCRIPTION

[0019] To more clearly illustrate the objectives, technical solutions, and advantages of the present utility model, the technical solutions in the embodiments of the present utility model are described clearly and completely below in conjunction with the drawings. It is obvious that the described embodiments represent only a portion of the embodiments of the present utility model, and not all of them. All other embodiments that a person skilled in the art can derive without creative effort based on the embodiments in this application fall within the scope of this application.

[0020] With the popularization and application of smart cars, there are more and more entertainment functions in the cars, which make it possible to use projectors in cars.

[0021] On-board projectors are typically mounted in vehicles and primarily consist of a projection lens, a light source system, and a display system. During operation, the projection lens projects light onto the display system to form an image. To prevent dust from contaminating the lens, a removable dust cover is commonly used in front of the lens. This means that the dust cover is removed when the projector is in use and attached to the lens when not in use.

[0022] However, this traditional dust cover has a small coverage area and poor anti-dust effect and has no anti-collision function.

[0023] To this end, the present application proposes a projection device and a vehicle employing a structure in which an anti-dust assembly is provided on the side closest to the lens, and a drive motor is used to control the operating state of the anti-dust assembly. That is, the anti-dust assembly is controlled to open when the projection device is operating, so that the lens is not covered by the anti-dust assembly. Now, the light in the lens can be projected outside through a window. When the projection device is not operating, the anti-dust assembly is closed, so that the lens is covered by the anti-dust assembly to prevent dust from falling onto the surface of the lens. Compared with the anti-dust assembly of a conventional projection device, this device has better anti-dust and anti-collision properties.

[0024] A projection device in this embodiment is explained in more detail below.

[0025] Fig. 1 is an exploded view of a projection device according to an embodiment of the present application. Fig. 2 is a schematic diagram of a structure of a projection device according to an embodiment of the present application. Fig. 3 is a schematic diagram of a structure of an anti-dust assembly in a projection device according to an embodiment of the present application in a closed state. Fig. 4 is a schematic diagram of a structure of an anti-dust assembly in a projection apparatus according to an embodiment of the present application in an opened state. Fig. 5 is a schematic representation of a gear device in a projection device according to an embodiment of the present application.

[0026] The present utility model proposes a projection device 10 mounted on a vehicle. The projection device 10 includes an anti-dust assembly, a housing 200, a projection assembly, and a lens 300. The housing 200 includes a receiving chamber 210. The projection assembly and the lens 300 are provided within the receiving chamber 210. A side of the housing 200 provided with the lens 300 has a cover plate 220, and the cover plate 220 has a window 230 opposite the lens 300, so that the lens 300 projects an image through the window 230. The anti-dust assembly includes a drive unit 110 and an anti-dust unit. The anti-dust unit includes a movable part 121, and the drive unit 110 is configured such that the drive unit drives the movable part 121 to move the movable part relative to the cover plate 220.When the movable part 121 is in the first position, the window 230 is covered by the movable part 121. When the movable part 121 is in the second position, the position of the movable part 121 and the position of the window 230 do not overlap with each other, so that the lens 300 is in an appearing state.

[0027] The cover plate 220 includes a mounting bracket 260, and a mounting post 280 is provided on one side of the housing 200. The mounting post 280 has a mounting hole inside, and a screw passes through the mounting hole to secure the anti-dust assembly to the housing 200. The purpose of the design is to simplify threaded connection, and the screws are easy to remove, thus facilitating later component replacement.

[0028] In an optional embodiment, a tongue-and-groove structure can be used to firmly connect the anti-dust assembly to the housing 200. Specifically, a positioning groove is provided on one side of the housing 200, and a projection corresponding to the shape of the positioning groove is provided on the mounting bracket 260. The projection and the positioning groove form a locking connection.

[0029] In particular, a positioning assembly 290 is provided on one side of the housing 200, which cooperates with the mounting bracket 260 to limit the position of the anti-dust assembly so that the entire lens 300 can be seen from the window 230.

[0030] Thus, a structure is used in which an anti-dust assembly is provided on the side closest to the lens 300, and a drive motor 111 is used to control the operating state of the anti-dust assembly. That is, the anti-dust assembly is controlled to open when the projection device 10 is operating, so that the lens 300 is not covered by the anti-dust assembly. Now, the light in the lens 300 can be projected outward through a window 230. When the projection device 10 is not operating, the anti-dust assembly is closed, so that the lens 300 is covered by the anti-dust assembly to prevent dust from falling onto the surface of the lens 300. Compared with an anti-dust assembly of a conventional projection device, this device has better anti-dust properties and better anti-collision properties.

[0031] In some embodiments, the drive unit 110 includes a drive motor 111 and a transmission device 112. The transmission device 112 is provided between the drive motor 111 and the movable part 121 and is configured to transmit the moving force of the drive unit 110 to the movable part 121.

[0032] In an optional embodiment, the drive motor 111 may be a three-phase asynchronous motor, and the rotational speed of the movable part 121 may be controlled by providing the frequency and the rotational speed of the drive motor 111 to prevent damage caused by excessive rotational speed of the movable part 121.

[0033] As in Fig. 1, a sealing box body 100 is provided on a side close to the mounting bracket 260, and the transmission device 112 is fixedly provided in the box body 100. The purpose of this design is to ensure safe and stable movement force transmission, and the assembly process is simple and subsequent replacement is facilitated.

[0034] In some embodiments, the movable part 121 includes a movable body 122 and a shaft 123. The shaft 123 is configured to rotate about the axis of the shaft 123 under the drive of the drive unit 110 so that the movable body 122 can cover the window 230.

[0035] In order to achieve flexible swinging of the movable body 122, the material of the movable body 122 should be selected from lighter materials. Specifically, in this embodiment, the material of the movable body 122 is aluminum alloy. The purpose of this design is that aluminum alloy not only has the characteristics of low density and is not easily contaminated with dust, but also has a certain hardness. It is not easy to produce dents on it and has good anti-collision properties. In particular, a snap structure is further provided inside the shaft 123 to prevent the movable body 122 from falling off during frequent swinging.

[0036] In some embodiments, a first end of the movable body 122 is connected to the shaft 123, and a second end of the movable body 122 rotates about the shaft 123, and when the movable part 121 is in the first position, the second end of the movable body 122 covers the window 230.

[0037] As in Fig. 3 and Fig. 4, "+x" and "-x" in the figures represent the two opposite rotation directions of the movable part 121. That is, when the movable part 121 is in the first position, the drive motor 111 drives the movable part 121 to rotate clockwise along "+x" to cover the window 230. When the movable part 121 is in the second position, the drive motor 111 drives the movable part 121 to rotate counterclockwise along "-x" so that the lens 300 is in an appearing state.

[0038] In some embodiments, the shaft 123 is arranged parallel to an output shaft 113 of the drive motor 111, and the gear device 112 comprises an input gear 114 and an output gear 115. The input gear 114 is connected to the output shaft 113, and the output gear 115 is connected to the shaft 123, and the input gear 114 is toothed with the output gear 115.

[0039] In an optional embodiment, the transmission device 112 takes on a type of gear. In particular, as shown in Fig. 5, a number of teeth of the input gear 114 is smaller than a number of teeth of the output gear 115. The purpose of this embodiment is to reduce the output rotational speed of the drive motor 111 after transmission through the gear device 112 in order to adapt the rotational speed to the rotational speed of the movable part 121.

[0040] In some embodiments, a rotation angle range of the movable body 122 around the shaft 123 is 0° -90°.

[0041] When the movable body 122 is in the horizontal direction, the movable body 122 is in the first position, and when the movable body 122 is in the vertical direction, the movable body 122 is in the second position.

[0042] The shaft 123 is integrally formed with the movable body 122, and the cover plate 220 is provided with a mounting hole. The shaft 123 is inserted into the mounting hole to connect the movable body 122 to the cover plate 220. Specifically, the shaft 123 is coupled to the mounting hole by a clearance fit, allowing the shaft to be easily removed from the mounting hole for future replacement and preventing the shaft 123 from jamming due to temperature changes.

[0043] In particular, the movable body 122 may also adopt an electric telescopic arm. Specifically, when the electric telescopic arm is retracted, the window 230 is not covered by the electric telescopic arm, and the light from the lens 300 can be projected through the window 230 to form an image. When the electric telescopic arm is extended, the window 230 is covered by the electric telescopic arm, which can prevent dust from falling onto the surface of the lens 300.

[0044] In some embodiments, an extension bracket 240 is provided at a bottom of the housing 200, which is configured to firmly connect the housing 200 to the vehicle body, and the extension bracket 240 is connected to the vehicle body by a thread.

[0045] The extension bracket 240 is formed integrally with the housing 200, as shown in Fig. 1. A mounting hole is provided inside the extension bracket 240, and a screw passes through the mounting hole to detachably connect the projection device 10 to the vehicle body. In particular, the use of this detachable connection method can avoid the influence of wind resistance caused by the projection device 10 on the vehicle's driving performance during operation.

[0046] In some embodiments, the projection device 10 includes a depth camera 250. The depth camera 250 is configured to automatically correct images.

[0047] The depth camera 250 and the lens 300 are also arranged side by side. When the movable part 121 is in the first position, both the lens 300 and the depth camera 250 can be covered by the movable body 122.

[0048] This includes, as in Fig.As shown in Figure 4, the projection device 10 includes a depth camera 250 (time of flight, TOF) located next to the lens. TOF allows for more precise adjustment of clarity to avoid blurred images. Specifically, when the projection device is not in operation, the lens 300 and TOF are covered together by the movable body 122 to prevent TOF from becoming contaminated with dust.

[0049] In an optional embodiment, the housing 200 adopts a two-layer arrangement of upper and lower layers. Specifically, the upper and lower layers of the housing 200 are provided in an integrated molding process, which not only provides high precision but also reduces space occupancy.

[0050] The housing 200 may also adopt a single-layer structure, and aluminum alloy is selected as the material of the housing 200. The purpose of this design is that the weight of the aluminum alloy is relatively light, which can prevent deformation of the vehicle body caused by the excessive weight of the housing 200, and the aluminum alloy can also prevent electromagnetic interference from affecting the image quality.

[0051] In some embodiments, the projection assembly includes a light source, an optical path unit, and a digital micromirror device (DMD). The optical path unit and the DMD chip are provided on the laser emission path of the light source to reflect the laser emission path of the light source to the lens, which projects the light onto the screen to form an image.

[0052] A laser light source can be selected as the light source. The purpose of this design is that, compared to conventional incandescent light sources, the laser light source has higher brightness and focusing ability, which does not cause brightness attenuation and focus reduction. The optical path unit includes a color wheel and a reflector, which is configured to filter and focus the light emitted by the laser light source and then transmit the reflected light to the lens 300. The lens 300 projects the light onto the screen to form an image.

[0053] The anti-dust assembly and the lens 300 are connected to the vehicle body through a rational arrangement of the wiring harness within the vehicle body. The anti-dust assembly and the lens 300 can be opened simultaneously or sequentially by pressing the buttons on the vehicle body.

[0054] In particular, the working status of the anti-dust assembly and the lens 300 can also be controlled by a remote control, and the projection device 10 can also be connected to a mobile phone via Bluetooth or a wireless network. Users can control the anti-dust assembly and the lens 300 by manipulating the mobile phone interface.

[0055] The anti-dust assembly includes a cleaning unit (not shown in the drawing). Specifically, the cleaning unit may be a brush with a spray. The cleaning unit is provided on the panel and can remove fingerprints or oil stains on the lens 300 to prevent deterioration of image quality.

[0056] In this embodiment, the projection device 10 is mounted on a vehicle, and the projection device 10 includes an anti-dust assembly, a housing 200, a projection assembly, and a lens 300. The housing 200 includes a receiving chamber 210. The projection assembly and the lens 300 are provided within the receiving chamber 210. A side of the housing 200 provided with the lens 300 has a cover plate 220, and the cover plate 220 has a window 230 opposite the lens 300, so that the lens 300 projects an image through the window 230. The anti-dust assembly includes a drive unit 110 and an anti-dust unit. The anti-dust unit includes a movable part 121, and the drive unit 110 is configured such that the drive unit drives the movable part 121 to move the movable part relative to the cover plate 220.When the movable part 121 is in the first position, the window 230 is covered by the movable part 121. When the movable part 121 is in the second position, the position of the movable part 121 and the position of the window 230 do not overlap with each other, so that the lens 300 is in an appearing state. Thus, a structure is adopted in which an anti-dust assembly is provided on the side close to the lens 300, and a drive motor 111 is used to control the operating state of the anti-dust assembly. That is, the anti-dust assembly is controlled to open when the projection device 10 is operated, so that the lens 300 is not covered by the anti-dust assembly. Now, the light in the lens 300 can be projected outward through a window 230.When the projection device 10 is not in operation, the anti-dust assembly is closed so that the lens 300 is covered by the anti-dust assembly to prevent dust from falling onto the surface of the lens 300. Compared with an anti-dust assembly of a conventional projection device, this device has better anti-dust properties and better anti-collision properties.

[0057] This embodiment further proposes a vehicle including a vehicle body and a projection device 10 provided on a vehicle body. The vehicle body has a front collision beam, and the projection device 10 is fixedly mounted on the front collision beam. The specific structure, function, and operating principle of the projection device 10 have been described in detail in the aforementioned embodiments and will not be repeated here.

[0058] At this time, the projection device 10 can be fixedly mounted on the front collision beam of the vehicle through an extension bracket located at the bottom of the housing 200. Specifically, a mounting hole is provided on the extension bracket 240, and a screw 270 is inserted into the mounting hole to firmly connect the projection device 10 to the vehicle body.

[0059] The projection device 10 is detachably connected to the front collision beam of the vehicle. Specifically, when in use, the projection device 10 can be mounted on the front collision beam of the vehicle, and when not in use, the projection device can be placed in the trunk of the vehicle. This provides significant flexibility.

[0060] Vehicle types include multi-purpose vehicles, RVs, etc. However, the vehicle type is not limited to this. This allows users to experience the feeling of an outdoor cinema while traveling and provides users with a better entertainment experience.

[0061] It should be noted that while embodiments are mentioned in the specification, such as "one embodiment," "an embodiment," "embodiments," "exemplary embodiments," "some embodiments," etc., they may include specific features, structures, or features, but not every embodiment necessarily includes that specific feature, structure, or feature. Furthermore, such phrases may not necessarily refer to the same embodiment. Furthermore, when describing particular features, structures, or features in connection with embodiments, it is within the skill of one of ordinary skill in the art to implement such features, structures, or features in connection with other embodiments that are explicitly or implicitly described.

[0062] In general, terminology should be understood at least in part by its use in context. For example, the term "one or more" as used in the text may, at least in part, depending on the context, be used to describe any feature, structure, or property of a singular meaning, or a combination of features, structures, or characteristics that can be used to describe a plural meaning. Likewise, terms such as "an" may, at least in part, also be understood as having singular or plural usage, depending on the context.

[0063] It should be readily understood that the terms "on," "over," and "above" in this disclosure should be interpreted as broadly as possible, such that "on" does not only mean "directly on something," but also includes the meaning of "on something" with intermediate features or layers in between, and "over" or "above" does not only mean "over something" or "above something," but also includes the meaning of "over something" or "above something" without intermediate features or layers in between (i.e., directly on something).

[0064] In addition, spatial relative terms such as "below," "lower," "below," "above," "above," etc., may be used in the text to describe the relationship of an element or feature relative to other elements or features shown in the drawing. In addition to the orientations shown in the accompanying drawings, the spatial relative term also includes different orientations of equipment in use or operation. The equipment may have other orientations (rotated 90° or in other orientations), and the spatial relative descriptors used in the text can also be interpreted accordingly.

[0065] Finally, it should be noted that the above embodiments are used only to illustrate the technical solution of the present utility model and not for limitation. Although the present utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the aforementioned embodiments or substitute some or all of the technical features with equivalents. These modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

[1] Projection device, characterized by that the projection device is mounted on a vehicle, wherein the projection device comprises an anti-dust assembly, a housing, a projection assembly and a lens, and wherein the housing comprises a receiving chamber, wherein the projection assembly and the lens are provided within the receiving chamber, and wherein a side of the housing provided with the lens has a cover plate, and wherein the cover plate has a window opposite the lens, so that the lens projects an image through the window, and wherein the anti-dust assembly comprises a drive unit and an anti-dust unit, wherein the anti-dust unit comprises a movable part, and wherein the drive unit is configured such that the drive unit drives the movable part to move the movable part relative to the cover plate, and wherein when the movable part is in the first position, the window is covered by the movable part, and when the movable part is in the second position, a position of the movable part and a position of the window do not overlap with each other, so that the lens is in an appearing state. [2] Projection device according to claim 1, characterized by that the drive unit comprises a drive motor and a transmission device, wherein the transmission device is provided between the drive motor and the movable part and is designed such that a moving force of the drive unit is transmitted to the movable part. [3] Projection device according to claim 2, characterized bythat the movable part comprises a movable body and a shaft, wherein the shaft is designed such that the shaft rotates about the axis of the shaft under the drive of the drive unit, so that the movable body covers the window. [4] Projection device according to claim 3, characterized by that a first end of the movable body is connected to the shaft, and a second end of the movable body rotates about the shaft, wherein when the movable part is in the first position, the second end of the movable body covers the window. [5] Projection device according to claim 4, characterized bythat the shaft is arranged parallel to an output shaft of the drive motor, wherein the transmission device comprises an input gear and an output gear, and wherein the input gear is connected to the output shaft, and wherein the output gear is connected to the shaft, and wherein the input gear is toothed with the output gear. [6] Projection device according to claim 5, characterized by that a rotation angle range of the movable body around the shaft is 0° - 90°, wherein when the movable body is in the horizontal direction, the movable body is in the first position, and when the movable body is in the vertical direction, the movable body is in the second position. [7] Projection device according to one of claims 1-6, characterized bythat an extension bracket is provided on a bottom of the housing, which is designed to firmly connect the housing to the vehicle body, wherein the extension bracket is connected to the vehicle body by a thread. [8] Projection device according to one of claims 1-6, characterized by that the projection device comprises a depth camera, wherein the depth camera and the lens are arranged side by side, and wherein when the movable part is in the first position, both the lens and the depth camera are covered by the movable body. [9] Projection device according to claim 8, characterized bythat the projection assembly comprises a light source, an optical path unit and a digital micromirror chip, wherein the optical path unit and the digital micromirror chip are provided on a laser radiation path of the light source to reflect the laser radiation path of the light source to the lens that projects the light onto the screen to form an image. [10] Vehicle, characterized by that the vehicle comprises a vehicle body and a projection device according to any one of claims 1-9, wherein the vehicle body has a front collision beam of the vehicle and wherein the projection device is fixedly mounted to the front collision beam of the vehicle.

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