Head-up display devices and vehicles

Abstract

This application discloses a head-up display device and vehicle, belonging to the field of automotive electrical and electronic displays, for installation in the driver's cabin of a vehicle. The head-up display device includes: a device body, a defrosting component, and a ventilation duct. Since the first vent in the defrosting component can face the windshield of the vehicle, and this first vent can be connected to the ventilation duct, the ventilation duct can blow air towards the windshield through the first vent in the defrosting component. Thus, when frost forms on the inside of the windshield, causing fogging, the cooperation between the ventilation duct and the defrosting component allows the first vent in the defrosting component to blow air towards the windshield, effectively removing the frost.

Description

Technical Field

[0001] This application relates to the field of automotive electrical and electronic displays, and in particular to a head-up display device and vehicle. Background Technology

[0002] Augmented Reality-Head-Up Display (AR-HUD) is a type of automotive vision-assisted safety driving system. This system projects important information needed by the driver onto the windshield of the car through the optical path of the AR-HUD, integrating the displayed information with the surrounding real scene. This allows the driver to directly obtain real-time road condition information and vehicle-related information on the windshield.

[0003] Current AR-HUD devices are relatively large, and in order to ensure display quality, they can only be placed between the dashboard and the windshield. This means that the defrost port originally used for defrosting the windshield is occupied by the AR-HUD device, resulting in a poorer defrosting effect on the windshield and affecting the driver's safety. Summary of the Invention

[0004] This application provides a head-up display device and a vehicle. It solves the problem in existing technologies where the defrost opening is blocked, resulting in a reduced defrosting effect on the windshield. The technical solution is as follows:

[0005] On one hand, this application provides a head-up display device for installation in the cockpit of a vehicle, the head-up display device comprising:

[0006] The device body has a light outlet on the side facing the windshield of the vehicle;

[0007] A defrosting component connected to the device body at the light outlet has a first vent on the side of the defrosting component facing away from the device body;

[0008] And a ventilation duct connected to the first ventilation opening, the ventilation duct being configured to blow air through the first ventilation opening onto the windshield.

[0009] Optionally, the orthographic projection of the defrosting component on the plane where the light outlet is located does not coincide with the light outlet.

[0010] Optionally, the defrosting element is ring-shaped, and the light outlet is located within the area enclosed by the defrosting element.

[0011] Optionally, the defrosting component has a plurality of first vents and an annular air duct communicating with the plurality of first vents, the plurality of first vents being arranged around the annular air duct, and the annular air duct communicating with the ventilation pipe.

[0012] Optionally, the head-up display device further includes: a branch pipeline and a control valve located within the branch pipeline, wherein both ends of the branch pipeline are respectively connected to the annular air duct and the ventilation duct;

[0013] Specifically, when the control valve is in the open state, the ventilation duct can blow air into the annular air duct through the branch duct; when the control valve is in the closed state, the ventilation duct stops blowing air into the annular air duct.

[0014] Optionally, the defrosting component has a second vent on the side facing the device body, the second vent being connected to the ventilation duct, and the ventilation duct being configured to blow air to the light outlet through the second vent.

[0015] Optionally, the ventilation duct is used to connect to the vehicle's ventilation system.

[0016] Optionally, the head-up display device further includes: an air supply component, wherein the air outlet of the air supply component faces one end of the ventilation duct, and the end of the ventilation duct away from the air supply component is connected to the first ventilation opening.

[0017] Optionally, the head-up display device further includes: a dustproof film fixedly connected to the device body at the light outlet, and a light shield movably connected to the device body at the light outlet, wherein the light shield is closer to the defrosting component than the dustproof film.

[0018] This application also provides a vehicle, including: a driver's cabin, and a head-up display device installed in the driver's cabin, wherein the head-up display device is the head-up display device described above.

[0019] The beneficial effects of the technical solutions provided in this application include at least the following:

[0020] By incorporating ventilation ducts and a first vent within the head-up display device, the head-up display can also possess a certain defrosting function. By blowing air through the first vent towards the windshield, fog and frost on the windshield are removed, thereby increasing the defrosting effect of the windshield and reducing the possibility of affecting the driver's driving safety. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of a head-up display device provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of another head-up display device provided in an embodiment of this application;

[0024] Figure 3 yes Figure 2 The top view of the head-up display device is shown.

[0025] Figure 4 yes Figure 2 The diagram shows a cross-sectional view of the defrosting component in the head-up display device at point A-A'.

[0026] Figure 5 yes Figure 2 The diagram shows a cross-sectional view of the head-up display device at point B-B'.

[0027] Figure 6 This is a schematic diagram illustrating the installation and cooperation between a head-up display device and a windshield, as provided in an embodiment of this application. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used are for illustrative purposes only and do not represent the only possible implementation.

[0031] Augmented Reality-Head-Up Display (AR-HUD) is an automotive vision-assisted safety driving system. This system projects important information needed by the driver onto the windshield of the car through the optical path of the AR-HUD, integrating the displayed information with the surrounding real scene, so that the driver can directly obtain real-time road condition information and vehicle-related information on the windshield.

[0032] Existing AR-HUDs can only be positioned between the car's dashboard and the windshield to achieve ideal imaging results. However, placing the AR-HUD between the dashboard and the windshield obstructs the air conditioning defroster vents that are normally located above the dashboard. This means that, given the temperature difference between the inside and outside of the vehicle, frost and fogging are easily formed on the inside of the windshield, and the defroster vents cannot completely remove the frost, potentially affecting driving safety. Currently, the market primarily relies on electrically heated glass for windshield defrosting and defogging, but this method increases costs.

[0033] Based on this, the applicant provides a head-up display device that, by setting up a ventilation duct and a first ventilation opening inside the head-up display device, enables the head-up display to also have a certain defrosting function. This solves the problem that the original car defrosting and defogging openings were blocked, thus preventing effective defrosting and defogging, thereby improving the defrosting effect on the windshield and reducing the possibility of affecting the driver's driving safety.

[0034] This application provides a head-up display device 000, which can be an AR-HUD. Please refer to... Figure 1 , Figure 1 This is a three-dimensional structural diagram of a head-up display device provided in an embodiment of this application. The head-up display device 000 is used to be installed in the cockpit of a vehicle. The head-up display device 000 may include: a device body 100, a defrosting component 200, and a ventilation duct 300.

[0035] The head-up display device 000 has a light-emitting port S on the side of the device body 100 facing the windshield of the vehicle. For example, a display module for emitting light can be provided inside the device body 100. The light beam emitted by the display module can pass through the light-emitting port S and exit the device body 100, and finally present a virtual image on the windshield for the driver to observe in real time while driving.

[0036] The defrosting component 200 in the head-up display device 000 can be connected to the device body 100 at the light outlet K of the device body 100. The defrosting component 200 has a first vent K1 on the side opposite to the device body 100.

[0037] Here, the light-emitting port S of the device body 100 and the first ventilation port K1 of the defrosting component 200 can be arranged in parallel, that is, the light-emitting port S of the device body 100 and the first ventilation port K1 of the defrosting component 200 both face the same direction. Therefore, after the head-up display device 000 is installed in the driver's cabin of the vehicle, the light-emitting port S of the device body 100 and the first ventilation port K1 of the defrosting component 200 can both face the windshield of the vehicle.

[0038] It should be noted that by arranging the light outlet S of the device body 100 and the first ventilation opening K1 of the defrosting component 200 in parallel, the head-up display device 000 only needs to ensure that one of the light outlet S of the device body 100 and the first ventilation opening K1 of the defrosting component 200 faces the windshield during actual use, without the need to adjust them separately. This reduces the complexity of installing the head-up display device 000. At the same time, since the light outlet S of the device body 100 and the first ventilation opening K1 of the defrosting component 200 face the same direction, they can be manufactured together, simplifying the process steps and reducing the complexity of production.

[0039] The ventilation duct 300 in the head-up display device 000 can be connected to the first vent K1 of the defrosting component 200. The ventilation duct 300 in the head-up display device 000 can be configured to blow air towards the windshield through the first vent K1 of the defrosting component 200.

[0040] In this embodiment, after frost forms on the inside of the windshield, causing fogging, the ventilation duct 300 can blow air through the first vent K1 of the defrosting device 200 onto the windshield, effectively removing the frost. Thus, even if the defrosting vent inside the vehicle is blocked by the head-up display 000, the frost on the inside of the windshield can still be properly removed by the defrosting device 200 in the head-up display 000, thereby effectively improving driver safety.

[0041] In summary, the head-up display device provided in this application includes: a device body, a defrosting component, and a ventilation duct. Since the first vent in the defrosting component can face the windshield of the vehicle, and this first vent can be connected to the ventilation duct, the ventilation duct can blow air towards the windshield through the first vent in the defrosting component. Thus, when frost forms on the inside of the windshield, causing fogging, the cooperation between the ventilation duct and the defrosting component allows the first vent in the defrosting component to blow air towards the windshield, effectively removing the frost. Therefore, even if the defrosting vent inside the vehicle is blocked by the head-up display device, the frost on the inside of the windshield can still be normally removed by the defrosting component in the head-up display device, thereby effectively improving the driver's safety.

[0042] In the embodiments of this application, such as Figure 1 As shown, the orthographic projection of the defrosting component 200 onto the plane of the light-emitting port S of the device body 100 does not coincide with the light-emitting port S. In this case, even if the defrosting component 200 is provided at the light-emitting port S of the device body 100, it can be ensured that the defrosting component 200 will not block the light beam emitted from the light-emitting port S of the device body 100, thereby ensuring that the device body 100 can normally project virtual images onto the windshield of the vehicle through the light-emitting port S.

[0043] Optional, such as Figure 1 As shown, the defrosting element 200 in the head-up display device 000 is ring-shaped, and the light-emitting port S of the device body 100 can be located within the area enclosed by the defrosting element 200. Therefore, the light beam emitted from the light-emitting port S of the device body 100 can pass through the area enclosed by the defrosting element 200 and then be projected onto the windshield of the vehicle.

[0044] For example, the area of ​​the region enclosed by the defrosting component 200, projected onto the plane of the light-emitting port S of the device body 100, can be slightly larger than the area of ​​the light-emitting port S of the device body 100. This ensures that the defrosting component 200 does not obstruct the light beam emitted from the light-emitting port S of the device body 100 during the process of the light beam emitted from the light-emitting port S of the device body 100 being projected onto the windshield of the vehicle.

[0045] Alternatively, please refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 This is a schematic diagram of another head-up display device provided in an embodiment of this application. Figure 3 yes Figure 2 The top view of the head-up display device is shown. Figure 4 yes Figure 2The diagram shows a cross-sectional view of the defrosting component in the head-up display device at point A-A'. The defrosting component 200 has a plurality of first vents K1 and an annular duct K3 communicating with the plurality of first vents K1. The plurality of first vents K1 in the defrosting component 200 may be arranged around the annular duct K3, and the annular duct K3 in the defrosting component 200 may be connected to the ventilation duct 300.

[0046] Here, since the defrosting component 200 can be ring-shaped, an annular air duct K3 can be directly installed inside the defrosting component 200, meaning the ring-shaped defrosting component 200 body is a hollow structure. Furthermore, each of the first ventilation openings K1 in the defrosting component 200 can be connected to the annular air duct K3, and the annular air duct K3 in the defrosting component 200 can be directly connected to the ventilation duct 300. The ventilation duct 300 can then blow air into the annular air duct K3 in the defrosting component 200, allowing the annular air duct K3 to blow air onto the vehicle's windshield through each of the first ventilation openings K1. Since the multiple first ventilation openings K1 in the defrosting component 200 are arranged around the annular air duct K3, air can be evenly blown onto the vehicle's windshield through the multiple first ventilation openings K1, thereby improving the defrosting effect on the windshield.

[0047] Optionally, a heating element capable of heating air can be added to the annular air duct K3 in the defrosting component 200 to ensure that the air blown onto the windshield of the vehicle is a relatively stable hot air. This ensures that the heat carried by this hot air can melt the frost on the inside of the windshield, thereby further improving the defrosting effect of the windshield. The heating element may include a thermal resistor, heating fins, and other heating elements capable of heating air.

[0048] Optionally, a pressurizing component can be added to the annular air duct K3 in the defrosting component 200 to ensure that each first vent K1 blows a greater force towards the windshield, thereby further improving the defrosting effect on the windshield. The pressurizing component may include a compressor, a small air compressor, or other pressurizing components capable of pressurizing air.

[0049] It should be noted that, because the annular air duct K3 in the defrosting component 200 can store and pressurize the air blown from the ventilation duct 300, the air storage capacity of the annular air duct K3 can reduce the possibility of heat loss and temperature drop in the air blown from the ventilation duct 300, thereby better ensuring the defrosting and defogging effect. Furthermore, the pressurizing effect of the annular air duct K3 makes the airflow velocity of the first vent K1 faster, allowing it to reach the windshield more accurately.

[0050] In addition, a baffle can be installed at the first vent K1, and the baffle and the first vent K1 can be movably connected. A driving component is installed inside the baffle to drive the baffle to move, so as to cover or expose the first vent K1. This ensures that dust will not enter the first vent K1 when the defrosting and defogging function is not needed, so as not to affect the display effect of the display module.

[0051] For example, the baffle and the first vent K1 can be rotatably connected, and a linear drive can be set at the first vent K1. The output end of the linear drive is fixedly connected to the end of the baffle that is away from the rotatably connected to the first vent K1. The baffle is driven to move by the linear drive to complete the blocking or exposure of the first vent K1.

[0052] Optionally, such as Figure 2 As shown, the head-up display device 000 may further include: a branch line 400, and a control valve (not shown) located within the branch line 400. Here, the two ends of the branch line 400 can be connected to the annular duct K3 in the defrosting unit 200 and the ventilation duct 300, respectively. The control valve located within the branch line 400 has an open state and a closed state.

[0053] When the control valve is in the open state, the ventilation duct 300 can blow air into the annular air duct K3 in the defrost unit 200 through the branch duct 400, and then blow air into the windshield of the vehicle through each first ventilation port K1 connected to the annular air duct K3; when the control valve is in the closed state, the ventilation duct 300 stops blowing air into the annular air duct K3 in the defrost unit 200, and thus stops blowing air into the windshield of the vehicle.

[0054] For example, in this embodiment, the control valve can be located at any position in the branch pipe 400, or at the connection between the branch pipe 400 and the ventilation pipe 300, or at the connection between the branch pipe 400 and the annular duct K3 in the defrosting component 200. Here, the control valve may include a shut-off valve, a solenoid valve, and other valves capable of controlling the connection and disconnection between the annular duct K3 in the defrosting component 200 and the ventilation pipe 300. The specific valve selected as the control valve can be set according to actual usage requirements, and this application does not impose any restrictions on this.

[0055] In this embodiment, a controller can also be installed in the driver's cab, electrically connected to the control valve, and the controller controls the opening and closing of the control valve. It is understood that, to conform to the driver's operating habits, the controller can also be integrated into the air conditioning panel in the driver's cab or the control panel of the head-up display device.

[0056] Alternatively, please refer to Figure 3The defrosting component 200 has a second vent K2 on the side facing the device body 100. The second vent K2 is connected to a ventilation duct 300, which is also configured to blow air through the second vent K2 towards the light outlet S of the device body 100. In this way, the ventilation duct 300 can blow air not only towards the windshield of the vehicle through the first vent K1, but also towards the light outlet S of the device body 100 through the second vent K2. This removes dust accumulated at the light outlet S of the device body 100, resulting in a better beam of light emitted from the light outlet S, and thus ensuring a better display effect of the virtual image projected onto the windshield. Therefore, the defrosting component 200 not only removes frost from the inside of the windshield, but also removes dust accumulated at the light outlet S of the device body 100.

[0057] For example, the second vent K2 in the defrosting component 200 can be connected to the annular air duct K3, and there are multiple second vents K2 in the defrosting component 200, which can be arranged around the annular air duct K3. In this way, after the ventilation duct 300 connected to the annular air duct K3 blows air into the annular air duct K3, the air can blow towards the windshield of the vehicle through each of the first vents K1 connected to the annular air duct K3. During this process, the air can also blow towards the light outlet S of the device body 100 through each of the second vents K2 connected to the annular air duct K3.

[0058] In this embodiment, the ventilation duct 300 in the head-up display device 000 can have multiple air supply methods. This application will illustrate two of these methods as examples:

[0059] In a first optional implementation, the ventilation duct 300 in the head-up display 000 can be directly connected to the vehicle's ventilation system to supply air to the head-up display 000 via the vehicle's ventilation system. Here, the vehicle's ventilation system may include at least one of the vehicle's air conditioning system, the vehicle's internal and external air circulation system, and the vehicle's defrosting system. Therefore, the ventilation duct 300 in the head-up display 000 may include at least one of the following: an air conditioning supply duct connected to the vehicle's air conditioning system, an air circulation duct connected to the vehicle's internal and external air circulation system, and a defrosting duct connected to the vehicle's defrosting system.

[0060] It should be noted that by supplying air to the ventilation duct 300 through the vehicle's ventilation system, existing vehicles can be put into use with only simple modifications to the existing ventilation system's ductwork, thus increasing the versatility of the head-up display device 000.

[0061] It should also be noted that, in this case, by installing a control valve in the branch line 400 of the head-up display device 000, the connection and disconnection between the ventilation duct 300 and the annular air duct K3 in the defrost unit 200 can be controlled. Thus, when defrosting the vehicle's windshield is not required, the control valve can stop the ventilation duct 300 from blowing air into the annular air duct K3 in the defrost unit 200, preventing the vehicle's ventilation system from blowing air through the ventilation duct 300 into the annular air duct K3 in the defrost unit 200. This ensures better ventilation within the vehicle and helps reduce energy consumption.

[0062] In addition, the control valve can be integrated with the vehicle's air conditioning control panel, allowing the control valve to be controlled via the air conditioning control panel. An indicator light for the control valve can also be added to the air conditioning control panel, so that the driver can directly observe and adjust the control valve on the air conditioning panel to suit the driver's driving habits and reduce unnecessary energy consumption caused by forgetting to close the control valve.

[0063] The second optional implementation method can also be to additionally set up an air supply component of 500 to supply air to the ventilation ducts of 300. For example, as shown... Figure 4 As shown, the head-up display device 000 may further include: an air supply assembly 500, the air outlet of which may face one end of the ventilation duct 300, and the end of the ventilation duct 300 away from the air supply assembly 500 may be connected to the first vent K1 in the defrosting component 200. Here, the end of the ventilation duct 300 away from the air supply assembly 500 may be connected to the first vent K1 through a branch line 400 and an annular air duct K3 in the defrosting component 200. Optionally, the air supply assembly 500 may include a fan, a small compressor, and other air supply components capable of supplying air to the ventilation duct 300, thereby completing the air supply to the ventilation duct 300.

[0064] It should be noted that by facing the air outlet of the air supply component 500 towards one end of the ventilation duct 300, the air supplied by the air outlet of the air supply component 500 can directly enter the ventilation duct 300. Furthermore, by connecting the end of the ventilation duct 300 away from the air supply component 500 to the first ventilation port K1 in the defrosting component 200, it can be ensured that the ventilation duct 300 can blow air to the first ventilation port K1 in the defrosting component 200 more efficiently.

[0065] Alternatively, please refer to Figure 5 , Figure 5 yes Figure 2The cross-sectional view of the head-up display device shown at B-B' shows that the head-up display device 000 also includes a dustproof film 700 fixedly connected to the device body 100 at the light outlet S, and a light shield 600 movably connected to the device body 100 at the light outlet S. The light shield 600 is closer to the defrosting component 200 than the dustproof film 700.

[0066] For example, a light-transmitting dustproof film 700 can be covered on the light-emitting port S of the device body 100 to prevent dust from entering the display module set inside the light-emitting port S, thereby affecting the display effect of the display module. Here, a light-shielding plate 600 can also be set between the defrosting component 200 and the dustproof film 700. The light-shielding plate 600 can be slidably connected to the light-emitting port S of the defrosting component 200, or it can be rotatably connected to the light-emitting port S of the defrosting component 200.

[0067] In this way, when the head-up display device 000 needs to be used, the light shield 600 will not block the light outlet S; and when the head-up display device 000 is not needed, it is difficult for external dust to enter the device body from the light outlet S, reducing the possibility that the display effect of the head-up display device 000 will be affected by dust accumulation on the display module.

[0068] Furthermore, the applicant unexpectedly discovered that dust on the surface of the dustproof film 700 also affects the light transmission of the head-up display device 000, thus affecting its display effect. Currently, the dustproof film 700 on most head-up displays 000s is unobstructed, and the head-up display device 000 is recessed on the dashboard. As a result, dust easily accumulates on the dustproof film 700. Moreover, due to the special material of the dustproof film 700, it is difficult to clean. It is understandable that dustproof glass or other dustproof components installed at the light outlet S would also accumulate dust for the same reason, severely affecting the transmission of virtual image light and impacting display brightness and clarity. The applicant proposed to improve the display brightness and clarity of the head-up display device 000 by installing a second ventilation hole on the side of the defrost unit 200 facing the device body 100, which blows away dust from the surface of the dustproof film 700 or dustproof glass.

[0069] In summary, the head-up display device provided in this application includes: a device body, a defrosting component, and a ventilation duct. Since the first vent in the defrosting component can face the windshield of the vehicle, and this first vent can be connected to the ventilation duct, the ventilation duct can blow air towards the windshield through the first vent in the defrosting component. Thus, when frost forms on the inside of the windshield, causing fogging, the cooperation between the ventilation duct and the defrosting component allows the first vent in the defrosting component to blow air towards the windshield, effectively removing the frost. Therefore, even if the defrosting vent inside the vehicle is blocked by the head-up display device, the frost on the inside of the windshield can still be normally removed by the defrosting component in the head-up display device, thereby effectively improving the driver's safety.

[0070] This application also provides a vehicle, please refer to... Figure 6 , Figure 6 This is a schematic diagram illustrating the installation and cooperation of a head-up display device and a windshield according to an embodiment of this application. It includes a driver's cabin and a head-up display device installed within the driver's cabin, wherein the head-up display device is the aforementioned type. The vehicle includes commercial vehicles, electric vehicles, and other vehicles with a driver's cabin.

[0071] Please refer to it again. Figures 1 to 6 When this embodiment is working, the following steps are performed:

[0072] When defrosting and defogging the windshield 001 is required: turn on the controller and use the controller to open the control valve to connect the ventilation duct 300 and the annular air duct K3. At the same time, turn on the air conditioner. At this time, the defrosting and defogging air blown from the air conditioner duct through the ventilation duct 300, the branch line duct 400 and the annular air duct K3, and then blown onto the windshield 001 from the first air outlet on the defrosting component 200, thereby achieving the defrosting and defogging effect of the windshield 001. After the defrosting and defogging is completed, turn off the controller and use the controller to close the control valve to disconnect the ventilation duct 300 and the annular air duct K3, thereby ending the defrosting and defogging operation.

[0073] When defrosting and defogging the dustproof film 700 is required: Turn on the controller to open the control valve, connecting the ventilation duct 300 and the annular air duct K3. Simultaneously, turn on the vehicle's air conditioning. The defrosting and defogging airflow from the air conditioning duct passes through the ventilation duct 300, branch duct 400, and annular air duct K3, then blows the defrosting and defogging air from the first air outlet on the defrosting component 200 onto the surface of the dustproof film 700, thus removing dust and ensuring the cleanliness of the dustproof film 700 during display. When the head-up display (HUD) is off, the controller closes the light-shielding cover, ensuring the cleanliness of the dustproof film 700 surface even when not in use. This ensures the cleanliness of the dustproof film 700 surface regardless of whether it is in use or not, preventing dust from affecting the HUD's display quality.

[0074] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A head-up display device, characterized in that, The head-up display device is used for installation in the driver's cabin of a vehicle, and the head-up display device includes: The device body has a light outlet on the side facing the windshield of the vehicle; A defrosting component connected to the device body at the light outlet has a first ventilation opening on the side of the defrosting component away from the device body, and the orthographic projection of the defrosting component on the plane where the light outlet is located does not coincide with the light outlet. And a ventilation duct connected to the first ventilation opening, the ventilation duct being configured to blow air through the first ventilation opening to the windshield; The defrosting element is ring-shaped, and the light outlet is located within the area enclosed by the defrosting element. The defrosting element has multiple first ventilation openings and an annular air duct communicating with the multiple first ventilation openings. The multiple first ventilation openings are arranged around the annular air duct, and the annular air duct is communicating with the ventilation pipe. The defrosting element has a second ventilation opening on the side facing the device body. The second ventilation opening is communicating with the ventilation pipe, and the ventilation pipe is further configured to blow air to the light outlet through the second ventilation opening. The head-up display device further includes: a dustproof film fixedly connected to the device body at the light outlet, and a light shield movably connected to the device body at the light outlet, wherein the light shield is closer to the defrosting component than the dustproof film.

2. The head-up display device according to claim 1, characterized in that, The head-up display device further includes: a branch pipeline and a control valve located within the branch pipeline, wherein both ends of the branch pipeline are respectively connected to the annular air duct and the ventilation duct; Specifically, when the control valve is in the open state, the ventilation duct can blow air into the annular air duct through the branch duct; when the control valve is in the closed state, the ventilation duct stops blowing air into the annular air duct.

3. The head-up display device according to any one of claims 1 to 2, wherein the ventilation duct is configured to communicate with the ventilation system of the vehicle.

4. The head-up display device according to any one of claims 1 to 2, wherein the head-up display device further comprises: An air supply assembly, wherein the air outlet of the air supply assembly faces one end of the ventilation duct, and the end of the ventilation duct facing away from the air supply assembly is connected to the first ventilation opening.

5. A vehicle, characterized in that, include: A cockpit, and a head-up display device installed in the cockpit, wherein the head-up display device is the head-up display device according to any one of claims 1-2.

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