A mirror assembly and heads-up display device

Abstract

The utility model provides a kind of mirror assembly, including mounting, support, driving part and elastic torsion part, support is fixed with mirror, one end of support is equipped with first pivot, first pivot is rotatably connected with mounting, first pivot can rotate around rotation axis relative to mounting;Driving part is located on mounting, the driving end of driving part is connected with first pivot, for driving first pivot rotates around its own axis, to drive support to rotate;Elastic torsion part is located between mounting and support, and elastic torsion part is used to provide the torque of first pivot rotating around rotation axis.The utility model provides a kind of mirror assembly, can reduce the number of components, facilitate assembly, and need not custom component, can save cost.In addition, the utility model also provides a kind of head-up display device.

Description

Technical Field

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

[0002] Currently, head-up displays (HUDs) are widely used in automobiles. While the vehicle is in motion, the HUD allows the driver to obtain driving information without taking their eyes off the road, ensuring driving safety. A typical HUD consists of a housing and an image generation unit and a reflector housed within the housing. The image generation unit generates an image containing driving information (such as vehicle speed and navigation information), and the reflector reflects the image out of the HUD and onto the windshield, from where it is reflected into the driver's eyes. The reflector is usually driven by a motor, rotating relative to the housing to adjust the reflection angle, allowing the reflector to reflect the image to a set height.

[0003] However, existing drive motors cannot directly act on the reflector; a separate transmission assembly is required, connected to both the drive motor and the reflector. When the reflector needs to be rotated to adjust the reflection angle, the drive motor first drives the transmission assembly, which then drives the reflector. This additional transmission assembly results in a larger number of components and more complex assembly. Furthermore, due to the limited internal space of the head-up display (HUD), the drive motor needs to be custom-made for installation, leading to higher costs. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that current head-up display devices have a large number of components, resulting in complex assembly and high costs. This invention provides a reflector assembly and head-up display device that reduces the number of components, facilitates assembly, eliminates the need for custom parts, and saves costs.

[0005] This utility model provides a reflector assembly, including a mounting component, a bracket, a driving component, and an elastic torsion member. The bracket houses the reflector, and one end of the bracket has a first rotating shaft rotatably connected to the mounting component. The first rotating shaft can rotate relative to the mounting component around a rotation axis to drive the bracket to rotate. The driving component is mounted on the mounting component, and its driving end is connected to the first rotating shaft to drive the first rotating shaft to rotate around its own axis. The elastic torsion member is located between the mounting component and the bracket, and provides torque to the first rotating shaft for rotation around its rotation axis.

[0006] According to another specific embodiment of this utility model, the mounting component has a through hole, and a first rotating shaft is inserted into the through hole, allowing the first rotating shaft to rotate around its own axis within the through hole. The end of the first rotating shaft has a mounting hole, and the driving component includes a driving shaft inserted into the mounting hole. At least one flat surface is provided on the side wall of the driving shaft, and the shape of the mounting hole is adapted to the shape of the driving shaft.

[0007] According to another specific embodiment of the present invention, the through hole includes a first hole body and a second hole body arranged sequentially along its extension direction. The diameter of the first hole body is larger than the diameter of the second hole body. A first rotating shaft and a driving member are respectively disposed on both sides of the mounting member. The first rotating shaft is inserted into the first hole body. The driving shaft passes through the second hole body and is inserted into the mounting hole. A first limiting protrusion and a second limiting protrusion are provided on the side wall of the driving shaft. There is a gap between the first limiting protrusion and the end face of the first rotating shaft. The outer circumferential surface of the second limiting protrusion is in contact with the inner wall of the second hole body.

[0008] According to another specific embodiment of this utility model, the elastic torsion member is a torsion spring, which includes a spring coil, a first torsion arm, and a second torsion arm. A fixed shaft is provided on the side of the mounting member facing the bracket, the spring coil is sleeved on the fixed shaft, the first torsion arm abuts against the mounting member, and the second torsion arm abuts against the bracket.

[0009] According to another specific embodiment of the present invention, a second rotating shaft is provided at one end of the bracket opposite to the first rotating shaft, and the reflector assembly also includes a support, with the second rotating shaft rotatably connected to the support.

[0010] According to another specific embodiment of the present invention, the end of the second rotating shaft is provided with a ball, and the support is provided with a groove, and the ball is rotatably disposed in the groove.

[0011] According to another specific embodiment of this utility model, the driving component is a stepper motor.

[0012] An embodiment of this utility model also provides a head-up display device, including any of the aforementioned reflector assemblies, a housing, and an image generation unit. The housing has a transparent cover, and the reflector assembly is disposed within the housing. The image generation unit, located within the housing, is used to generate images, and the reflector assembly is used to reflect the images.

[0013] According to another specific embodiment of the present invention, the head-up display device further includes a fixing base disposed inside the housing, and the mounting component is fixed on the fixing base.

[0014] Compared with the prior art, this utility model has the following beneficial effects:

[0015] The reflector assembly provided in this application directly connects the drive shaft of the driving component to the first rotating shaft, thus eliminating the need for a separate transmission assembly between the driving component and the first rotating shaft, reducing the number of parts and facilitating assembly. Furthermore, since this application eliminates the need for a separate transmission assembly, it provides more installation space for the driving component. Therefore, the driving component can be installed using a general-purpose motor without the need for special customization, thereby saving costs. Attached Figure Description

[0016] Figure 1 This diagram illustrates a reflector assembly provided in one embodiment of the present invention. Figure 1 ;

[0017] Figure 2 This diagram illustrates a reflector assembly provided in one embodiment of the present invention. Figure 2 ;

[0018] Figure 3 Show Figure 1 A magnified view of part A in the middle;

[0019] Figure 4 An exploded view of a mirror assembly provided in an embodiment of the present invention is shown. Figure 1 ;

[0020] Figure 5 This diagram illustrates an assembly of the mounting component and the driving component according to an embodiment of the present invention.

[0021] Figure 6 A schematic diagram of a driving component provided in an embodiment of the present invention is shown;

[0022] Figure 7 A cross-sectional view of a first rotating shaft and a drive shaft provided in an embodiment of the present invention is shown;

[0023] Figure 8 This diagram shows a mirror assembly provided in one embodiment of the present invention from another perspective.

[0024] Figure label:

[0025] 1. Bracket; 11. First rotating shaft; 111. Mounting hole; 12. Second rotating shaft; 121. Ball; 2. Mounting component; 21. Through hole; 211. First hole body; 212. Second hole body; 22. Fixed shaft; 3. Driving component; 31. Driving shaft; 311. First limiting protrusion; 312. Second limiting protrusion; 313. Plane; 4. Elastic torsion component; 41. Spring ring; 42. First torsion arm; 43. Second torsion arm; 5. Reflector; 51. Reflecting surface; 8. Fixing base. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] It should be noted that in this specification, similar reference numerals 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.

[0028] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0029] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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 embodiment based on the specific circumstances.

[0030] Currently, because the reflectors have bearing assemblies at both ends, and existing drive motors cannot directly engage with these bearing assemblies, a separate transmission assembly is required to drive the reflectors to rotate. This results in a large number of components and complex assembly. Furthermore, due to limited internal space, the drive motors need to be custom-made for installation, leading to higher costs.

[0031] To solve the above-mentioned technical problems, this utility model provides a reflector assembly and a head-up display device, which can reduce the number of parts, facilitate assembly, and eliminate the need for customized parts, thereby saving costs.

[0032] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below.

[0033] refer to Figures 1 to 3This utility model provides a reflector assembly, including a bracket 1, a mounting component 2, a driving component 3, and an elastic torsion component 4. A reflector 5 is fixedly mounted on the bracket 1. One end of the bracket 1 is provided with a first rotating shaft 11, which is rotatably connected to the mounting component 2. The first rotating shaft 11 can rotate relative to the mounting component 2 around a rotation axis (e.g., ...). Figure 2 The L in the diagram is rotated to drive the bracket 1 to rotate.

[0034] For details, please refer to Figure 4 and Figure 5 The mounting component 2 has a through hole 21, which includes a first hole body 211 and a second hole body 212 arranged sequentially along its extending direction. The diameter of the first hole body 211 is larger than the diameter of the second hole body 212. A first rotating shaft 11 and a driving component 3 are respectively located on both sides of the mounting component 2. The first rotating shaft 11 is inserted into the first hole body 211, such as... Figure 7 As shown, the first rotating shaft 11 can rotate around its own axis within the first hole 211.

[0035] refer to Figures 4 to 7 The driving component 3 is mounted on the mounting component 2. The driving end of the driving component 3 is connected to the first rotating shaft 11, and the driving component 3 is used to drive the first rotating shaft 11 to rotate around its own axis. For example, the driving component 3 can be a stepper motor. The end of the first rotating shaft 11 is provided with a mounting hole 111. The driving component 3 includes a driving shaft 31, which passes through the second hole 212 and is inserted into the mounting hole 111. Figure 7 As shown. A first limiting protrusion 311 and a second limiting protrusion 312 are provided on the side wall of the drive shaft 31. There is a gap between the first limiting protrusion 311 and the end face of the first rotating shaft 11. The outer circumferential surface of the second limiting protrusion 312 contacts the inner wall of the second hole 212, as shown. Figure 7 As shown, this serves a limiting function. At least one flat surface is provided on the side wall of the drive shaft 31, and the shape of the mounting hole 111 is adapted to the shape of the drive shaft 31, enabling the drive shaft 31 to drive the first rotating shaft 11 to rotate about its own axis. For example, as... Figure 6 As shown, the drive shaft 31 has two flat surfaces on its side wall, and the shape of the mounting hole 111 on the first rotating shaft 11 is adapted to the shape of the drive shaft 31. This application Figure 6 The shapes of the drive shaft 31 and the first rotating shaft 11 provided are only one embodiment. Those skilled in the art will understand that the drive shaft 31 and the first rotating shaft 11 can also have other shapes as long as relative rotation between them is prevented. For example, the drive shaft 31 has multiple protrusions on its sidewall and multiple grooves on the inner wall of the mounting hole 111. When the drive shaft 31 is inserted into the mounting hole 111, each protrusion can be inserted into its respective groove.

[0036] refer to Figure 4An elastic torsion member 4 is disposed between the mounting member 2 and the bracket 1. The elastic torsion member 4 is used to provide torque for the first rotating shaft 11 to rotate about the rotation axis L. Exemplarily, the elastic torsion member 4 can be a torsion spring. The elastic torsion member 4 includes a spring coil 41, a first torsion arm 42, and a second torsion arm 43. A fixed shaft 22 is provided on the side of the mounting member 2 facing the bracket 1. The spring coil 41 is sleeved on the fixed shaft 22. The first torsion arm 42 abuts against the mounting member 2, and the second torsion arm 43 abuts against the bracket 1. Figure 8 As shown.

[0037] When it is necessary to rotate the reflector 5 to adjust the reflection angle, the drive unit 3 is first activated, causing the drive shaft 31 to drive the first rotating shaft 11 to rotate around the rotation axis L, thereby driving the reflector 5 to rotate around the rotation axis L and adjusting the reflection angle of the reflector 5. On one hand, this application directly connects the drive shaft 31 to the first rotating shaft 11, eliminating the need for an additional transmission assembly between the drive unit 3 and the first rotating shaft 11, reducing the number of device components and facilitating assembly. On the other hand, since this application does not require an additional transmission assembly, it can provide more installation space for the drive unit 3. Therefore, the drive unit 3 can be installed using a general-purpose motor without special customization, thus saving device costs. Furthermore, this application provides an elastic torsion member 4 between the mounting member 2 and the bracket 1, which provides the first rotating shaft 11 with torque to rotate around the rotation axis L, preventing the reflector 5 from wobbling. Specifically, since the mounting hole 111 on the first rotating shaft 11 has a clearance fit with the drive shaft 31, relative rotation may occur between the first rotating shaft 11 and the drive shaft 31. This application provides torque to the first rotating shaft 11 through the elastic torsion member 4, which can make the first rotating shaft 11 and the drive member 3 tightly connected, so as to avoid relative rotation between the first rotating shaft 11 and the drive shaft 31.

[0038] Optionally, refer to Figure 1 and Figure 2 The support 1 has a second rotating shaft 12 at the end opposite to the first rotating shaft 11. The second rotating shaft 12 is coaxial with the first rotating shaft 11, and a sphere 121 is provided at the end of the second rotating shaft 12. The reflector assembly also includes a support (not shown in the figure), and the sphere 121 is hinged to the support. Specifically, the support has a groove, and the sphere 121 is rotatably disposed in the groove. By providing the second rotating shaft 12 and the support, this application facilitates the rotation of the reflector 5 around the rotation axis L, so as to adjust the reflection angle.

[0039] Optionally, refer to Figure 2The reflector 5 has an inwardly concave arc-shaped reflective surface 51. By setting the reflective surface 51 to be arc-shaped, this application enables the reflective surface 51 to match the curvature of the vehicle's windshield, thereby effectively solving the problem of image distortion caused by the curvature of the windshield. By precisely matching the curvature of the reflective surface 51 with that of the windshield, it can be ensured that images containing driving information (such as vehicle speed, navigation information, etc.) can be accurately and clearly projected onto the windshield, improving the driving experience.

[0040] This utility model also provides a head-up display device, including any of the aforementioned reflector assemblies, and further including a housing (not shown in the figure), an image generating unit (not shown in the figure), and a fixing base 8 disposed within the housing. A transparent cover plate is provided on the housing. The reflector assembly is disposed within the housing, and the mounting member 2 is fixed to the fixing base 8, such as... Figure 3 As shown. The image generation unit is used to generate images, and the reflector assembly is used to reflect the images. When the head-up display is working, the image generation unit generates an image containing driving information and projects the image onto the reflector 5. The image is then reflected by the reflector 5 onto the windshield of the vehicle, and then reflected by the windshield to the driver's eyes so that the driver can obtain driving information.

[0041] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A reflector assembly, characterized in that, include: Installation components; A bracket is provided with a reflector, and a first rotating shaft is provided at one end of the bracket. The first rotating shaft is rotatably connected to the mounting component and can rotate relative to the mounting component around a rotation axis. A driving component is disposed on the mounting component, and the driving end of the driving component is connected to the first rotating shaft, which is used to drive the first rotating shaft to rotate around its own axis, so as to drive the bracket to rotate. An elastic torsion member is disposed between the mounting member and the bracket, the elastic torsion member being used to provide the first rotating shaft with a torque for rotation about the rotation axis.

2. The reflector assembly as claimed in claim 1, characterized in that, The mounting component has a through hole, and the first rotating shaft is inserted into the through hole. The first rotating shaft can rotate around its own axis within the through hole. The end of the first rotating shaft has a mounting hole. The driving component includes a driving shaft, which is inserted into the mounting hole. The side wall of the driving shaft has at least one flat surface. The shape of the mounting hole is adapted to the shape of the driving shaft.

3. The reflector assembly as described in claim 2, characterized in that, The through hole includes a first hole and a second hole arranged sequentially along its extension direction. The diameter of the first hole is larger than the diameter of the second hole. The first rotating shaft and the driving member are respectively disposed on both sides of the mounting member. The first rotating shaft is inserted into the first hole. The driving shaft passes through the second hole and is inserted into the mounting hole. The side wall of the driving shaft is provided with a first limiting protrusion and a second limiting protrusion. There is a gap between the first limiting protrusion and the end face of the first rotating shaft. The outer circumferential surface of the second limiting protrusion is in contact with the inner wall of the second hole.

4. The reflector assembly as claimed in claim 1, characterized in that, The elastic torsion member is a torsion spring, which includes a spring coil, a first torsion arm, and a second torsion arm. A fixed shaft is provided on the side of the mounting member facing the bracket. The spring coil is sleeved on the fixed shaft. The first torsion arm abuts against the mounting member, and the second torsion arm abuts against the bracket.

5. The reflector assembly as claimed in claim 1, characterized in that, The bracket has a second rotating shaft at one end opposite to the first rotating shaft, and the reflector assembly also includes a support, with the second rotating shaft rotatably connected to the support.

6. The mirror assembly as claimed in claim 5, characterized in that, The end of the second rotating shaft is provided with a ball, and the support is provided with a groove, and the ball is rotatably disposed in the groove.

7. The reflector assembly as claimed in claim 1, characterized in that, The driving component is a stepper motor.

8. A head-up display device, characterized in that, The head-up display device further comprises the reflector assembly according to any one of claims 1-7, and includes: A housing with a transparent cover plate, wherein the reflector assembly is disposed inside the housing; An image generation unit is disposed within the housing, the image generation unit is used to generate an image, and the reflector assembly is used to reflect the image.

9. The head-up display device as claimed in claim 8, characterized in that, It also includes a fixing base, which is disposed inside the housing, and the mounting component is fixed to the fixing base.

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