Head-up display device and vehicle
By setting monitoring devices and counters on the HUD reflector and housing, the number of counters is recorded when the reflector rotates, solving the problem of the reflector not rotating in place, and realizing precise image adjustment of the HUD and a comfortable experience for the driver.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-03
AI Technical Summary
In existing HUD reflector rotation drives, resistance or motor step loss can easily cause incomplete rotation, affecting the integrity and comfort of the image seen by the driver.
Monitoring devices and counters are installed on the reflector and the housing. By recording the number of times the reflector passes over the counters as it rotates, the controller determines whether the reflector has rotated to the correct position and controls the motor to ensure accurate positioning.
It achieves precise rotation of the reflector to ensure the driver sees a comfortable and complete picture, and improves the image adjustment accuracy of the HUD through a closed-loop feedback mechanism.
Smart Images
Figure CN223966774U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of head-up display technology, and more specifically, to a head-up display device and a vehicle. Background Technology
[0002] A head-up display (HUD) is a driver-centric, blind-operated, multi-functional instrument panel that projects important driving information such as speed and navigation onto the windshield in front of the driver, allowing the driver to see this information without looking down or turning their head. To enhance the driver experience and achieve better human-machine interaction, the precision required for adjusting the height of the image projected onto the windshield by the HUD is constantly increasing.
[0003] Image height adjustment is achieved by rotating a reflector in the HUD. Currently, the rotation of HUD reflectors on the market is driven by a motor outputting a certain number of steps, which are then transmitted through a transmission assembly to rotate the reflector. However, the position of the reflector's rotation depends entirely on the smoothness of the rotation. If there is slight resistance, motor step loss, or transmission assembly step loss, the reflector will not be able to rotate to the expected position, resulting in the driver not being able to see a comfortable and complete image. Utility Model Content
[0004] The purpose of this application is to address the shortcomings of the prior art by providing a head-up display device and vehicle that can effectively reduce the situation where the reflector is not rotated into place, allowing the driver to see a comfortable and complete picture.
[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:
[0006] One aspect of this application provides a head-up display device, including: a housing, a reflector disposed on the housing, a transmission assembly, and a motor. The motor drives the reflector to rotate around its mounting axis via the transmission assembly. The head-up display device further includes a controller, a monitoring device, and a plurality of counters. One of the monitoring device and the counters is fixed to the reflector, and the other is fixed to the housing. The plurality of counters are evenly and spaced along the rotation path of the reflector. The controller is electrically connected to the monitoring device and the motor respectively. The monitoring device is used to record the number of counters that pass over the monitoring device when the reflector rotates. The controller is used to receive the number information and determine whether the motor should continue to work or control the motor to stop working based on the number information.
[0007] Optionally, the monitoring device is fixed inside the housing, and multiple counters are fixed on the reflector.
[0008] Optionally, the reflector includes a reflector body and a connector disposed on the edge of the reflector body. The reflector body is used to reflect light, and multiple counters are disposed on the connector.
[0009] Optionally, the connector is provided with a connecting groove, and the two surfaces of the connecting groove are fixedly connected to the two surfaces of the reflector body.
[0010] Optionally, the counting element is a gear tooth.
[0011] Optionally, the monitoring device is a photodiode, and the counting element is at least partially located within the monitoring area of the photodiode.
[0012] Optionally, the counter, monitoring device, motor, and transmission assembly are located on the same side of the reflector.
[0013] Optionally, the reflector is provided with a transmission body, and the side of the transmission body away from the reflector is provided with a toothed structure. The transmission component includes a screw, which is connected to a motor drive, and the toothed structure is threadedly engaged with the screw.
[0014] Optionally, a support plate is provided inside the housing, and the monitoring device is fixed on the support plate.
[0015] In another aspect of the embodiments of this application, a vehicle is provided, including: a vehicle body and a head-up display device as described in any of the above, the head-up display device being used to project an image onto the windshield of the vehicle body.
[0016] The beneficial effects of this application include:
[0017] This application provides a head-up display (HUD) device, including: a housing, a reflector mounted on the housing, a transmission assembly, and a motor. The motor drives the reflector to rotate around its mounting axis via the transmission assembly. The HUD device also includes a controller, a monitoring device, and multiple counters. One of the monitoring device and the counters is fixed to the reflector, and the other is fixed to the housing. The multiple counters are evenly and spaced along the rotation path of the reflector. The controller is electrically connected to both the monitoring device and the motor. The monitoring device records the number of counters that pass over it during the reflector's rotation. The controller receives the count information and determines whether the motor should continue operating or stop operating based on the count information. This HUD device adds a monitoring device and counters to the reflector and housing. During the reflector's rotation, multiple counters sequentially pass over the monitoring device and are recorded. The position of the reflector is monitored by the number of counters passing over it. This solution adds a closed-loop feedback mechanism. The number of counters passing over the monitoring device during the reflector's rotation determines whether the reflector has rotated to the expected position and feeds this information back to the controller. The controller then controls the motor's operation based on the received count information until the reflector rotates to the expected position, allowing the driver to see a comfortable and complete view. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of the head-up display device provided in the embodiments of this application;
[0020] Figure 2 This is a schematic diagram of the structure of the head-up display device provided in the embodiments of this application after the outer casing has been hidden;
[0021] Figure 3 This is one of the partial structural schematic diagrams of the head-up display device provided in the embodiments of this application;
[0022] Figure 4 This is a second partial structural schematic diagram of the head-up display device provided in the embodiments of this application.
[0023] Icons: 10-Heads-up display device; 11-Housing shell; 12-Reflector; 121-Reflector body; 122-Connector; 1221-Connecting groove; 123-Transmission body; 1231-Gear structure; 13-Transmission component; 131-Screw; 14-Motor; 15-Controller; 16-Monitoring device; 17-Counter; 18-Support plate. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0028] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0029] Regarding one aspect of the embodiments of this application, please refer to Figure 1 and Figure 2 A head-up display device 10 is provided, comprising: a housing 11, a reflector 12 disposed on the housing 11, a transmission assembly 13, and a motor 14. The input end of the transmission assembly 13 is drivenly connected to the motor 14, and the output end is drivenly connected to the reflector 12. The reflector 12 is rotatably disposed on the housing 11 via a mounting shaft. The motor 14 drives the reflector 12 to rotate around its mounting shaft via the transmission assembly 13, thereby adjusting the height of the image projected onto the windshield.
[0030] Please refer to the reference. Figure 3 The head-up display device 10 also includes a controller 15, a monitoring device 16, and multiple counters 17. The controller 15 is electrically connected to the monitoring device 16 and the motor 14. One of the monitoring device 16 and the counters 17 is fixed to the reflector 12, and the other is fixed to the housing 11. There are two possibilities: one is that the monitoring device 16 is fixed to the reflector 12, and the multiple counters 17 are fixed to the housing 11; the other is that the monitoring device 16 is fixed to the housing 11, and the multiple counters 17 are fixed to the reflector 12. Regardless of whether the counters 17 are distributed on the reflector 12 or the housing 11, the multiple counters 17 are evenly and spaced along the rotation path of the reflector 12. The rotation path of the reflector 12 refers to the movement path of a point on the reflector 12 when it rotates. When the reflector 12 rotates relative to the housing 11, the multiple counters 17 will sequentially pass over the monitoring area of the monitoring device 16.
[0031] It should be noted that when the monitoring device 16 is fixed on the reflector 12, the monitoring device 16 can be set at any position on the reflector 12 that does not affect the function of the reflector 12; similarly, when the counter 17 is fixed on the reflector 12, the counter 17 can be set at any position on the reflector 12 that does not affect the function of the reflector 12.
[0032] The monitoring device 16 records the number of counters 17 that pass over the monitoring device 16 when the reflector 12 rotates, and sends this information to the controller 15. The controller 15 receives the information and determines whether the reflector 12 has rotated to the correct position. If the reflector 12 has not rotated to the correct position, the controller motor 14 continues to operate, driving the reflector 12 to rotate until it reaches the preset position; if the reflector 12 has rotated to the correct position, the controller motor 14 stops operating.
[0033] It is understood that different rotation angles of the reflector 12 correspond to different standard quantity information. Here, the standard quantity information refers to the standard number of counters 17 that the monitoring device 16 should detect when the reflector 12 rotates at a certain angle. It is understood that once the required rotation angle of the reflector 12 is determined, the corresponding standard quantity information is also determined. After receiving the quantity information, the controller 15 compares the quantity information with the standard quantity information. If the quantity information is equal to the standard quantity information, it means that the reflector 12 has rotated to the correct position, and the controller 15 controls the motor 14 to stop working. If the quantity information is less than the standard quantity information, it means that the motor 14 has missed a step or the transmission component 13 has missed a step, and the reflector 12 has not rotated to the correct position. At this time, the controller 15 needs to control the motor 14 to continue driving the reflector 12 to rotate until the quantity information collected by the monitoring component is equal to the standard quantity information, so that the driver can see a comfortable and complete picture.
[0034] The aforementioned head-up display device 10 adds a monitoring device 16 and counters 17 to the reflector 12 and housing 11. When the reflector 12 rotates, multiple counters 17 sequentially pass through the monitoring device 16 and are recorded by the monitoring device 16. The position of the reflector 12 is monitored by the number of counters 17 passing through the monitoring device 16. This solution adds a closed-loop feedback mechanism, which determines whether the reflector 12 has rotated to the expected position by the number of counters 17 passing through the monitoring device 16 when the reflector 12 rotates, and feeds this information back to the controller 15. The controller 15 controls the motor 14 to operate according to the received count information until the reflector 12 rotates to the expected position, thus allowing the driver to see a comfortable and complete image.
[0035] Since the monitoring device 16 needs to be electrically connected to the controller 15, if the monitoring device 16 reciprocates with the reflector 12, it may cause instability in the electrical connection. Therefore, the monitoring device 16 is optionally fixed inside the housing 11, and multiple counters 17 are fixed on the reflector 12, thereby ensuring the normal operation of the head-up display device 10.
[0036] Furthermore, a support plate 18 is provided inside the outer casing 11, and the monitoring device 16 is fixed on the support plate 18.
[0037] The support plate 18 provides an installation platform for the monitoring device 16. At the same time, by changing the shape and size of the support plate 18, the position of the monitoring device 16 can be adjusted to ensure that multiple counters 17 can pass through the monitoring area of the monitoring device 16 in sequence.
[0038] Optionally, the reflector 12 includes a reflector body 121 and a connector 122 disposed on the edge of the reflector body 121. The reflector body 121 is used to reflect light, and a plurality of counters 17 are disposed on the connector 122.
[0039] Positioning the connector 122 and multiple counters 17 at the edge of the reflector body 121 prevents them from interfering with the reflected light from the reflector 12. Furthermore, the dimensions of the connector 122 can be flexibly designed according to the dimensions and number of the counters 17, avoiding material waste and reducing costs. The connector 122 and multiple counters 17 can also be a single integrated structure to facilitate the processing and installation of the counters 17.
[0040] Alternatively, please refer to Figure 3 and Figure 4 The connector 122 is provided with a connecting groove 1221, which is located at the edge of the connector 122 and has two surfaces distributed in an L-shape. One surface of the connecting groove 1221 is fixedly connected to one surface of the reflector body 121, and the other surface is fixedly connected to the other surface of the reflector body 121, thereby improving the reliability of the connection between the connector 122 and the reflector body 121.
[0041] Optionally, the counting body 17 is a gear tooth.
[0042] The gear teeth are easy to machine and easily captured by the monitoring device 16. The monitoring device 16 records the number of gear teeth that pass over the monitoring device 16 when the reflector 12 rotates, and feeds this information back to the controller 15 to determine whether the reflector 12 has rotated into position.
[0043] Alternatively, the connector 122 and the multiple gear teeth are machined from a single sheet metal, thus forming a single integrated structure.
[0044] Optionally, the monitoring device 16 is a photodiode, and the counter 17 is at least partially located within the monitoring area of the photodiode.
[0045] When the light emitted by the photodiode is blocked by the counter 17, a series of low-level signals are recorded; conversely, a high-level signal is recorded once. By recording the number of high and low level signal switching, the position of the reflector 12 is monitored and fed back to the controller 15, so as to determine whether the motor 14 needs to continue rotating.
[0046] Of course, the monitoring device 16 is not limited to photodiodes; it can also be electronic components based on principles such as lasers and Hall effect.
[0047] Optionally, the counter 17, monitoring device 16, motor 14 and transmission assembly 13 are located on the same side of the reflector 12, thereby making full use of the space on one side of the reflector 12 and facilitating simultaneous electrical connection of the monitoring device 16 and motor 14 to the controller 15.
[0048] Optionally, the reflector 12 is provided with a transmission body 123, and the transmission body 123 is provided with a toothed structure 1231 on the side away from the reflector 12. The transmission assembly 13 includes a screw 131, which is driven and connected to the motor 14. The toothed structure 1231 is threadedly engaged with the screw 131.
[0049] The output shaft of the motor 14 is fixedly connected to the screw 131. When the motor 14 rotates, it drives the screw 131 to rotate. The screw 131 cooperates with the toothed structure 1231 on the reflector 12, thereby driving the reflector 12 to rotate in both directions.
[0050] This embodiment also provides a vehicle, including: a vehicle body and a head-up display device 10 as described above, the head-up display device 10 being used to project images onto the windshield of the vehicle body.
[0051] This vehicle incorporates the same structure and beneficial effects as the head-up display device 10 in the foregoing embodiments. The structure and beneficial effects of the head-up display device 10 have been described in detail in the foregoing embodiments and will not be repeated here.
[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A head-up display device, characterized in that, The head-up display device comprises a housing, a mirror arranged on the housing, a transmission assembly and a motor, the motor drives the mirror to rotate around the mounting shaft of the mirror through the transmission assembly. The head-up display device further comprises a controller, a monitoring device and a plurality of counting bodies, one of the monitoring device and the counting bodies is fixed on the mirror and the other is fixed on the housing, the counting bodies are evenly and spacedly distributed along the rotating path of the mirror, and the controller is electrically connected with the monitoring device and the motor respectively. The monitoring device is used to record the number information of the counting bodies crossed by the mirror when the mirror rotates, and the controller is used to receive the number information and determine whether the motor continues to work or controls the motor to stop working according to the number information. The monitoring device is fixed in the housing, and the counting bodies are fixed on the mirror.
2. The head-up display device of claim 1, wherein The mirror comprises a mirror body and a connecting body arranged on the edge of the mirror body, the mirror body is used to reflect light, and the counting bodies are arranged on the connecting body.
3. The head-up display device of claim 2, wherein The connecting body is provided with connecting grooves, and the two mutually connected surfaces of the connecting grooves are fixedly connected with the two mutually connected surfaces of the mirror body.
4. The head-up display device of claim 3, wherein The counting bodies are gear teeth.
5. The head-up display device of claim 2, wherein The monitoring device is a photodiode, and the counting bodies are at least partially located in the monitoring area of the photodiode.
6. The head-up display device of claim 1, wherein The counting bodies, the monitoring device, the motor and the transmission assembly are located on the same side of the mirror.
7. The head-up display device of claim 1, wherein The mirror is provided with a transmission body, the transmission body is provided with a gear structure away from the mirror, the transmission assembly comprises a screw rod, the screw rod is drivingly connected with the motor, and the gear structure is threadedly connected with the screw rod.
8. The head-up display device of claim 1, wherein The housing is provided with a support plate, and the monitoring device is fixed on the support plate.
9. The head-up display device of claim 2, wherein The head-up display device comprises a housing, a mirror arranged on the housing, a transmission assembly and a motor, the motor drives the mirror to rotate around the mounting shaft of the mirror through the transmission assembly.
10. A vehicle, characterized by The head-up display device further comprises a controller, a monitoring device and a plurality of counting bodies, one of the monitoring device and the counting bodies is fixed on the mirror and the other is fixed on the housing, the counting bodies are evenly and spacedly distributed along the rotating path of the mirror, and the controller is electrically connected with the monitoring device and the motor respectively. The monitoring device is used to record the number information of the counting bodies crossed by the mirror when the mirror rotates, and the controller is used to receive the number information and determine whether the motor continues to work or controls the motor to stop working according to the number information. The monitoring device is fixed in the housing, and the counting bodies are fixed on the mirror. The mirror comprises a mirror body and a connecting body arranged on the edge of the mirror body, the mirror body is used to reflect light, and the counting bodies are arranged on the connecting body. The connecting body is provided with connecting grooves, and the two mutually connected surfaces of the connecting grooves are fixedly connected with the two mutually connected surfaces of the mirror body. The counting bodies are gear teeth. The monitoring device is a photodiode, and the counting bodies are at least partially located in the monitoring area of the photodiode. The counting bodies, the monitoring device, the motor and the transmission assembly are located on the same side of the mirror. The mirror is provided with a transmission body, the transmission body is provided with a gear structure away from the mirror, the transmission assembly comprises a screw rod, the screw rod is drivingly connected with the motor, and the gear structure is threadedly connected with the screw rod. The housing is provided with a support plate, and the monitoring device is fixed on the support plate. The head-up display device comprises a housing, a mirror arranged on the housing, a transmission assembly and a motor, the motor drives the mirror to rotate around the mounting shaft of the mirror through the transmission assembly. The head-up display device further comprises a controller, a monitoring device and a plurality of counting bodies, one of the monitoring device and the counting bodies is fixed on the mirror and the other is fixed on the housing, the counting bodies are evenly and spacedly distributed along the rotating path of the mirror, and the controller is electrically connected with the monitoring device and the motor respectively. The monitoring device is used to record the number information of the counting bodies crossed by the mirror when the mirror rotates, and the controller is used to receive the number information and determine whether the motor continues to work or controls the motor to stop working according to the number information. The monitoring device is fixed in the housing, and the counting bodies are fixed on the mirror. The mirror comprises a mirror body and a connecting body arranged on the edge of the mirror body, the mirror body is used to reflect light, and the counting bodies are arranged on the connecting body. The connecting body is provided with connecting grooves, and the two mutually connected surfaces of the connecting grooves are fixedly connected with the two mutually connected surfaces of the mirror body. The counting bodies are gear teeth. The monitoring device is a photodiode, and the counting bodies are at least partially located in the monitoring area of the photodiode. The counting bodies, the monitoring device, the motor and the transmission assembly are located on the same side of the mirror. The mirror is provided with a transmission body, the transmission body is provided with a gear structure away from the mirror, the transmission assembly comprises a screw rod, the screw rod is drivingly connected with the motor, and the gear structure is threadedly connected with the screw rod. The housing is provided with a support plate, and the monitoring device is fixed on the support plate. The head-up display device comprises a housing, a mirror arranged on the housing, a transmission assembly and a motor, the motor drives the mirror to rotate around the mounting shaft of the mirror through the transmission assembly. The head-up display device further comprises a controller, a monitoring device and a plurality of counting bodies, one of the monitoring device and the counting bodies is fixed on the mirror and the other is fixed on the housing, the counting bodies are evenly and spacedly distributed along the rotating path of the mirror, and the controller is electrically connected with the monitoring device and the motor respectively. The monitoring device is used to record the number information of the counting bodies crossed by the mirror when the mirror rotates, and the controller is used to receive the number information and determine whether the motor continues to work or controls the motor to stop working according to the number information. The monitoring device is fixed in the housing, and the counting bodies are fixed on the mirror. The mirror comprises a mirror body and a connecting body arranged on the edge of the mirror body, the mirror body is used to reflect light, and the counting bodies are arranged on the connecting body. The connecting body is provided with connecting grooves, and the two mutually connected surfaces of the connecting grooves are fixedly connected with the two mutually connected surfaces of the mirror body. The counting bodies are gear teeth. The monitoring device is a photodiode, and the counting bodies are at least partially located in the monitoring area of the photodiode. The counting bodies, the monitoring device, the motor and the transmission assembly are located on the same side of the mirror. The mirror is provided with a transmission body, the transmission body is provided with a gear structure away from the mirror, the transmission assembly comprises a screw rod, the screw rod is drivingly connected with the motor, and the gear structure is threadedly connected with the screw rod. The housing is provided with a support plate, and the monitoring device is fixed on the support plate. The head-up display device comprises a housing, a mirror arranged on the housing, a transmission assembly and a motor, the motor drives the mirror to rotate around the mounting shaft of the mirror through the transmission assembly. The head-up display device further comprises a controller, a monitoring device and a plurality of counting bodies, one of the monitoring device and the counting bodies is fixed on the mirror and the other is fixed on the housing, the counting bodies are evenly and spacedly distributed along the rotating path of the mirror, and the controller is electrically connected with the monitoring device and the motor respectively. The monitoring device is used to record the number information of the counting bodies crossed by the mirror when the mirror rotates, and the controller is used to receive the number information and determine whether the motor continues to work or controls the motor to stop working according to the number information. The monitoring device is fixed in the housing, and the counting bodies are fixed on the mirror. The mirror comprises a mirror body and a connecting body arranged on the edge of the mirror body, the mirror body is used to reflect light, and the counting bodies are arranged on the connecting body. The connecting body is provided with connecting grooves, and the two mutually connected surfaces of the connecting grooves are fixedly connected with the two mutually connected surfaces of the mirror body. The counting bodies are gear teeth. The monitoring device is a photodiode, and the counting bodies are at least partially located in the monitoring area of the photodiode. The counting bodies, the monitoring device, the motor and the transmission assembly are located on the same side of the mirror. The mirror is provided with a transmission body, the transmission body is provided with a gear structure away from the mirror, the transmission assembly comprises a screw rod, the screw rod is drivingly connected with the motor, and the gear structure is threadedly connected with the screw rod. The housing is provided with a support plate, and the monitoring device is fixed on the support plate. The head-up display device comprises a housing, a mirror arranged on the housing, a transmission assembly and a motor, the motor drives the mirror to rotate around the mounting shaft of the mirror through the transmission assembly. The head-up display device further