CN218938621U - Lens rotating support, display device and vehicle - Google Patents

Abstract

The application relates to the technical field of projection display, in particular to a lens rotating support, display equipment and a vehicle. According to the optical lens assembly, through the base and cover plate matching structure capable of being flexibly opened and closed, the ball head of the optical lens assembly one-end connecting piece is placed into the rotating space formed between the base and the cover plate, the ball head rotates in the rotating space, so that the optical lens assembly corresponding to the display device is driven to realize angle adjustment, and the rotating space can be opened along with the opening between the base and the cover plate, so that the optical lens assembly is convenient to detach. The optical lens can be simply installed and detached in the display device, and meanwhile, the installed optical lens has flexible rotation capacity.

Description

Lens rotating support, display device and vehicle

Technical Field

The application relates to the technical field of projection display, in particular to a lens rotating support, display equipment and a vehicle.

Background

HUD (Head Up Display) is gradually applied to vehicle-mounted Display, navigation information and the like can be directly projected onto a windshield of a vehicle, and convenience in information watching by a driver is improved. However, in practical applications, the position requirement of the display device projected on the windshield is not constant, for example, the projection position needs to be adjusted according to the viewing height of the driver, so the display device needs to support the adjustment angle by using the internal optical lens to change the light path planning, thereby changing the projection position. This requires a lens turning bracket to support flexible adjustment of the optical lens, and on the other hand, the internal space of the display device is often limited, and there is a high requirement for convenience in manufacturing and assembling the lens turning bracket.

Disclosure of Invention

An object of the application is to provide a lens rotation support, display device and vehicle, solved among the prior art optical lens and adjusted inflexibly, inconvenient technical problem of dismouting.

In order to solve the technical problems, the application adopts the following technical scheme:

in a first aspect, there is provided a lens turning bracket comprising:

a base for securing within the display device;

a cover plate mated with the base;

the base and the cover plate are connected through a movable structure to have an open state and a closed state;

when the base and the cover plate are in a closed state, a rotating space is formed between the base and the cover plate, the rotating space is used for accommodating a ball head of the optical lens connecting piece, and the ball head rotates in the rotating space;

when the base and the cover plate are in an open state, the rotating space exposes an opening for putting in or taking out the ball head.

In an alternative implementation manner of the first aspect, mounting holes are formed at two ends of the base, and the base is fixed in the display device through the mounting holes by screws.

In an alternative embodiment of the first aspect, the movable structure is a hinge structure.

In an alternative embodiment of the first aspect, the base and the cover are fastened together by means of a snap-fit in the closed state, so as to avoid loosening of each other.

In an optional implementation manner of the first aspect, the base is provided with a first side wall, a second side wall, a third side wall and a fourth side wall so as to enclose the rotation space and enable an inner wall of the rotation space to be matched with a shape of the ball head, and at least part of the fourth side wall is provided with a notch so as to place a part of the connecting piece connected with the ball head.

In an alternative embodiment of the first aspect, the cover plate covers the opening of the rotation space when the base and the cover plate are in a closed state so that the ball head placed in the rotation space does not fall out of the rotation space.

In an optional implementation manner of the first aspect, a spring piece is disposed at a position of the cover plate corresponding to the opening of the rotation space, and the spring piece is used for abutting against a ball head surface in the rotation space when the base and the cover plate are in a closed state.

In a second aspect, there is provided a display device comprising the lens turning bracket of the first aspect.

In an optional implementation manner of the second aspect, the display device further includes an optical lens, two ends of the optical lens are respectively fixed in the display device through the lens rotating bracket, and the ball head of the connecting piece at two ends of the optical lens rotates in the rotating space of the lens rotating bracket so as to drive the optical lens to adjust an angle in the display device.

In a third aspect, the present application provides a vehicle comprising the lens turning bracket of the first aspect or the display device of the second aspect.

Compared with the prior art, the base that this application was through can opening and shutting in a flexible way and apron cooperation structure, put into the bulb of optical lens one end connecting piece and put into the rotation space that forms between base and the apron, the bulb rotates in rotation space to drive the optical lens that display device corresponds and realize angle adjustment, and rotation space can open along with opening between base and the apron, it is convenient to dismantle. The optical lens can be simply installed and detached in the display device, and meanwhile, the installed optical lens has flexible rotation capacity.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings that are used in the description of the technical solutions will be briefly described below. It is obvious that the drawings in the following description are only some examples described in the present application, and that other drawings may be obtained from these drawings without inventive work for a person of ordinary skill in the art.

Fig. 1 is a schematic view of a HUD projection display in some examples of the present application.

Fig. 2 is a schematic diagram of a HUD display device module in some examples of the present application.

Fig. 3 is a schematic view of an optical lens mounting structure in some examples of the present application.

Fig. 4A is a schematic view of a lens turning bracket in some examples of the present application in a closed state.

Fig. 4B is a schematic view of a lens turning bracket in some examples of the present application in a closed state.

Fig. 4C is a schematic view of a lens turning bracket in some examples of the present application in a closed state.

Fig. 5A is a schematic view of an open state of a lens turning bracket according to some examples of the present application.

Fig. 5B is a schematic view of an open state of a lens turning bracket according to some examples of the present application.

Fig. 6 is a schematic illustration of a vehicle in some examples of the present application.

Detailed Description

The present application will be described in detail below with reference to the attached drawings, but the descriptions are only examples described in the present application and are not limiting, and all changes in structure, method or function etc. made by those of ordinary skill in the art based on these examples are included in the protection scope of the present application.

It should be noted that in different examples, the same reference numerals or labels may be used, but these do not represent absolute relationships in terms of structure or function. Also, the references to "first," "second," etc. in the examples are for descriptive convenience only and do not represent absolute distinguishing relationships between structures or functions, nor should they be construed as indicating or implying a relative importance or number of corresponding objects. Unless specifically stated otherwise, reference to "at least one" in the description may refer to one or more than one, and "a plurality" refers to two or more than two.

In addition, in representing the feature, the character "/" may represent a relationship in which the front-rear related objects exist or exist, for example, a head-up display/head-up display may be represented as a head-up display or a head-up display. In the expression operation, the character "/" may indicate that there is a division relationship between the front and rear related objects, for example, the magnification m=l/P may be expressed as L (virtual image size) divided by P (image source size). Also, "and/or" in different examples is merely to describe the association relationship of the front and rear association objects, and such association relationship may include three cases, for example, a concave mirror and/or a convex mirror, and may be expressed as the presence of a concave mirror alone, the presence of a convex mirror alone, and the presence of both concave and convex mirrors.

The HUD mainly uses the optical reflection principle to project the information to be displayed on the transparent surface, and the user can directly watch the corresponding information on the transparent surface, so that a special display screen is not needed, and another convenient implementation manner is provided for information display. The vehicle-mounted display device is applied to vehicle-mounted display, namely, the light projected by the light machine is projected on the front windshield of the vehicle through the light path planning by being provided with the light machine with the function of relevant vehicle information, so that a driver can directly watch the vehicle parameter information displayed on the front windshield during driving instead of looking at the data of the instrument panel at a low head, the convenience of watching the information is greatly improved, meanwhile, the driver does not need to turn the view to a place beyond the front of the vehicle when driving the vehicle to watch the information, and the safety of driving the vehicle by the driver is also improved.

As shown in fig. 1, in some examples, a display device for implementing the HUD function may be embedded on a center console in front of a steering wheel of a vehicle, where the display device includes at least a light engine 1, a first reflecting mirror 2, and a second reflecting mirror 3, and the first reflecting mirror 2 and the second reflecting mirror 3 may be set as free-form surface mirrors such as concave mirrors and convex mirrors according to requirements. The optical machine 1 projects light rays for displaying corresponding information, and the first reflecting mirror 2 and the second reflecting mirror 3 are used for realizing light path planning, so that a light path can be customized in a smaller display equipment space, and different projection display requirements are met. The light beam projected by the optical machine 1 is finally projected on the windshield 6 of the vehicle through multiple reflections of the first reflecting mirror 2 and the second reflecting mirror 3, and a driver 4 in the vehicle can see a virtual image 5 formed on the windshield 6 by the projected light beam of the optical machine 1 against the windshield 6, and the virtual image can be corresponding to parameter information of the vehicle and the like. It should be added that different optical machines can be correspondingly provided with a diffuse mirror to adjust the corresponding imaging effect. In some examples, fresnel lenses, waveguide optics, diffractive optics, holographic optics, tapered fibers, etc. may also be included in the display device to enable light path planning and optimization.

It should be noted that, in fig. 1, the projection position on the windshield is greatly dependent on the light paths customized by the first mirror 2 and the second mirror 3, and the driver 4 needs to have the same height as the projection position to clearly see the light paths, so that the driver can obtain the best viewing effect. However, if the driver with a different height is changed, the viewing height is not suitable for viewing the projection position of fig. 1, and at this time, the optical path of the projection display needs to be changed, and accordingly, the first mirror 2 and the second mirror 3 can be rotated. Taking the example of rotating the second reflecting mirror 3, when the second reflecting mirror 3 rotates anticlockwise, that is, the reflecting surface rotates upwards, the projection position on the windshield correspondingly drops, so that the driver with a shorter height can be accommodated; when the second mirror 3 rotates clockwise, i.e. the reflecting surface rotates downwards, the projection position on the windscreen will correspondingly rise, so that a driver with a higher height can be accommodated. In some examples, other optical lenses such as a diffuser, fresnel lens, etc. may also be rotated as desired. It can be seen that there is a need for an angle adjustment of the optical lens inside the display device, and the angle adjustment of the optical lens can be achieved by relying on the lens rotating bracket, and a lens rotating bracket that is easy and convenient to disassemble and assemble will be described in detail below.

In some examples, the display device integrated in the console of the vehicle may be added after the vehicle is purchased, or in some examples, may be directly integrated before the vehicle leaves the factory. The corresponding display device may also interact with the vehicle machine in order to display parameter information of the vehicle. Fig. 2 shows a schematic block diagram between a display device (HUD) and the vehicle 20, the display device being powered and data by the vehicle 20. The display device may include a processor 10, an ethernet interface 11, a CAN (Controller Area Network ) interface 12, a power management module 13, a run memory 14, a storage memory 15, a motor 16, a backlight 17, an image source 18, and the like.

It should be noted that the various modules listed in fig. 2 are merely exemplary descriptions and not limiting in any way, and that the display device may include other modules in some examples. In addition, the modules described above may be implemented in one or more hardware in different examples, or a single module may be implemented by a combination of a plurality of hardware.

The processor 10 serves as a control center for a display device and includes one or more processing units of any type including, but not limited to, a CPU (Central Processing Unit ), GPU (Graphics Processing Unit, graphics processor), microcontroller, DSP (Digital Signal Processor, digital signal control unit), NPU (Neural-network Processing Unit, neural network processor), or any combination thereof. The processor 10 is configured to generate an operation control signal according to a computer program, and control other respective modules.

The ethernet interface 11 is a network data connection port for local area network communication, defining a series of software and hardware standards through which a plurality of electronic devices can be connected together, in this example, for information interaction with the vehicle 20.

The CAN interface 12 is a network data connection port of the controller area network, provides a standard bus for a control system and embedded industrial control in the automobile, and realizes communication interaction between the control nodes, and in this example, CAN also perform information interaction with the automobile machine 20.

The power management module 13 is connected with the vehicle machine 20 to receive power provided by the vehicle machine 20, and provides voltage-stabilized power supply for each module of the display device, so that the processor 10 and the like cannot be burnt out.

The running Memory 14 is used for storing computer programs executed by the processor 10, and temporarily storing operation data, data exchanged with the storage Memory, and may be SDRAM (Synchronous Dynamic Random-access Memory), etc.

The storage memory 15 is used for storing resources such as related display content of the display device, and may be Flash, or may provide an interface to access an external memory.

The motor 16 is used for driving the optical lens in the display device to rotate, so that corresponding light path customization is realized, in the example, the motor 16 can be matched with the lens rotating bracket to perform angle adjustment on the optical lens in the display device, and the assembly and the disassembly are convenient.

The backlight 17 is used for providing a light source and adjusting the brightness of the display according to the control of the processor 10, and cooperates with the image source 18 to realize the main functions of the optical machine.

An image source 18 for displaying and projecting an image of the corresponding information, including an LCD, etc., under control of the processor 10. In some examples, a light guide plate for improving the use efficiency of the light emitted from the backlight 17 is further disposed between the backlight 17 and the image source 18.

As shown in fig. 3, in some examples, an optical lens 31 for changing an optical path or adjusting imaging quality is included in a display device implementing the HUD function, and the optical lens 31 is fixed in the display device by lens rotation brackets 32 at both ends, alternatively, may be fixed on an inner wall of the display device or on a corresponding fixture. In some examples, the optical lens 31 has connectors at both ends for rotational connection with the lens rotational support, and in particular, a ball is provided on the connector, and the ball can rotate in cooperation with the lens rotational support. After the optical lens 31 is fixed by the lens rotating bracket 32, the rotation of the optical lens 31 can be realized by using the transmission mechanism of the lens rotating bracket 32, for example, the optical lens 31 can rotate 360 degrees or any angle along the rotation axis. Further, the optical lens 31 can be driven by a motor to automatically rotate in cooperation with the lens rotating brackets 32 at the two ends. In some examples, the optical lens 31 may also be mounted in the display device by only one lens rotation bracket 32, for example the lens rotation bracket 32 may be connected to a connector provided on the back of the optical lens 31 to effect a corresponding rotation.

As shown in fig. 4A, in some examples, the lens rotating bracket 32 includes a base 41 and a cover plate 42, where the base 41 may be used to be fixed in the display device, alternatively, mounting holes 44 are respectively provided at two ends of the cover plate 42, and inner sides of the mounting holes 44 have corresponding threads, and are matched with corresponding screws, and the screws may pass through the mounting holes 44 to be fixed with the display device. The base 41 and the cover 42 can be connected by a specific movable structure 43, so that the base 41 and the cover 42 can rotate relatively based on the movable structure 43, and accordingly have an open state and a closed state. The base 41 and the cover 42 are foldable together in a closed state, and the base 41 and the cover 42 are expandable in an open state, as will be described in detail below. In some examples, the movable structure 43 may employ a hinge structure, which may improve the stability of rotation between the base 41 and the cover 42.

As shown in fig. 4B, when the base 41 and the cover 42 are in a closed state, a rotation space 48 is formed between the base 41 and the cover 42. The bottom and side surfaces of the rotating space 48 are disposed on the base 41, while the top surface of the rotating space 48 is disposed on the cover 42, and when the base 41 and the cover 42 are folded, the top surface of the cover 42 is just abutted against the side surface of the rotating space 48, so as to form a relatively closed rotating space 48. In some examples, the bottom surface of the rotating space 48 is disposed on the base 41, while the top surface and the side surfaces of the rotating space 48 are disposed on the cover 42, and when the base 41 and the cover 42 are folded, the bottom surface of the base 41 just abuts against the side surface of the rotating space 48, so that a relatively closed rotating space 48 is also formed. As shown in fig. 4C, a spherical groove may be formed in the rotation space 48, and accordingly, the ball 49 of the optical lens connector may turn over in the spherical groove, and optionally, in order to reduce the shake during turning over, the size of the spherical groove is slightly larger than that of the ball 49, so that the ball 49 abuts against the spherical groove to turn over. Further, the turning of the ball 49 drives the connecting piece and the optical lens to rotate.

In some examples, as shown in fig. 4A, after the ball head of the connector is placed in the rotation space, the base 41 and the cover 42 may be folded by the movable structure 43 to be in a closed state, in this example, the cover 42 just covers the opening at the top of the rotation space, and the ball head can only turn in the rotation space and cannot be taken out, so that the relative fixation is achieved. The cover plate 42 is provided with the window 46 corresponding to the rotation space, so that the manufacturing cost is reduced, and the state in the rotation space can be observed through the window 46 to provide assistance for mounting and using the lens rotation bracket 32. In some examples, after the base 41 and the cover 42 are folded, the base 41 and the cover 42 may be tightly fixed together by using a fastening 45, so as to avoid loosening the base 41 and the cover 42, so that the ball head placed in the rotation space will fall off. When the ball head is detached, the base 41 and the cover plate 42 can be unfolded again by unlocking the buckle 45, so that the ball head in the rotating space is taken out, and the simple detachment is realized.

In some examples, as shown in fig. 4B and 4C, a spring plate 47 is further disposed on a surface of the cover plate 42 facing the rotation space 48, and optionally, the spring plate 47 is embedded on a surface of the cover plate 42 facing the rotation space 48 and has a certain suspension distance from the cover plate 42, so that a certain spring space is ensured for the spring plate 47. Optionally, two protrusions are provided on the side of the cover plate 42 facing the rotation space 48, between which the spring plate 47 is embedded. When the ball is not placed in the rotation space 48, as shown in fig. 4B, the spring plate 47 is in a normal state in which no elastic change occurs, as shown in fig. 4C, when the ball 49 is placed in the rotation space 48 and the base 41 and the cover 42 are tightly fixed together by a buckle, the spring plate 47 abuts against a part of the surface of the ball 49 and a certain elastic change occurs, at this time, the spring plate 47 generates a certain elastic force under the action of deformation caused by an external force and acts on the ball 49, and the ball 49 is tightly locked in the rotation space 48 under the action of the elastic force of the spring plate 47, so that no additional shake occurs when the ball 49 turns in the rotation space 48.

As shown in fig. 5A and 5B, in some examples, the base 41 and the cover 42 may be unfolded by the movable structure 43, and it may be seen that the elastic sheet 47 is embedded between two protrusions 470 provided on the cover 42. In this example, since the cover plate 42 is provided with a window, the elastic sheet 47 may reserve enough space for elastic deformation in cooperation with the window, alternatively, the ball placed in the rotation space may be caught on the inner edge of the window. In some examples, the side walls disposed on the base 41 include a first side wall 481, a second side wall 482, a third side wall 483, and a fourth side wall 484, where the first side wall 481, the second side wall 482, the third side wall 483, and the fourth side wall 484 enclose an interior space of the rotational space 48 for accommodating the ball head of the optical lens connector, and optionally, the interior space is shaped to match the shape of the ball head. When the base 41 and the cover 42 are in an open state, the rotation space 48 surrounded by the first side wall 481, the second side wall 482, the third side wall 483 and the fourth side wall 484 is exposed out of the opening of the rotation space 48 due to no surrounding of the cover 42, and the size of the opening is identical to or slightly larger than the size of the ball head of the optical lens connector, so that the ball head can be placed into the rotation space 48 from the opening or taken out from the rotation space 48. Further, at least a portion of the fourth side wall 484 opposite to the first side wall 481 where the movable structure 43 is disposed is provided with a notch, and the notch is used for placing a portion of the connecting member connected to the ball. Referring to fig. 3, the connection member of the optical lens extends to the rotation space inside the lens rotation bracket 32 through the notch of the fourth side wall 484, and the ball head is a part of the connection member of the optical lens, and is not separated from the rotation space because of being larger than the notch of the fourth side wall 484, so that the entire optical lens can be fixed through the connection member, and simultaneously the ball head can rotate in the rotation space, and further is conducted through the connection member extending out of the notch of the fourth side wall 484, so that the entire optical lens is driven to perform angle adjustment. In some examples, the outer surfaces of the second side wall 482 and the third side wall 483 are respectively provided with a buckle 45, and correspondingly, the cover plate 42 is correspondingly provided with a bayonet 450 capable of locking the buckle 45, and since the bayonet 450 is arranged on the side plates with elasticity at two ends of the cover plate 42, the distance between the two side plates is slightly larger than the distance between the second side wall 482 and the third side wall 483, when the cover plate 42 and the base 41 are in a closed state, the two side plates of the cover plate 42 just wrap the second side wall 482 and the third side wall 483, and due to the elastic force between the two side plates of the cover plate 42, the buckle 45 is ensured to be tightly clamped in the bayonet 450, and therefore, loosening does not occur between the cover plate 42 and the base 41.

In some examples, a display device may include the above-mentioned lens rotating bracket (specifically, refer to fig. 4A-5B), optionally, the display device further includes an optical lens, two ends of the optical lens are respectively fixed in the display device through the lens rotating bracket (specifically, refer to fig. 3), and a ball head connected with two ends of the optical lens rotates in a rotating space of the lens rotating bracket to drive the optical lens to adjust an angle in the display device.

In some examples, the above-described lens turning brackets may be integrated with the corresponding optical lenses, etc. on the vehicle, or the above-described display device may be integrated directly on the vehicle. As shown in fig. 6, a display device may be integrated in the automobile, and corresponding parameter information may be projected onto the front windshield by projection, so that the front windshield may be viewed from the inside of the cockpit, that is, the traveling speed, navigation route information, and the like of the vehicle may be viewed. According to actual needs, the adjustment of the corresponding optical lenses can be realized through the lens rotating bracket, so that the projection position and the like can be adjusted. The vehicle is not limited to the above-described automobile, and may include buses, trucks, excavators, motorcycles, trains, high-speed rails, ships, yachts, airplanes, spacecraft, and the like. The projected windshield is not limited to the front windshield of the automobile, and may be a transparent surface in other positions.

To sum up, this application is through base and the apron cooperation structure that can open and shut in a flexible way, puts into the bulb of optical lens one end connecting piece and rotates the space that forms between base and the apron, and the bulb rotates in rotating the space to drive the optical lens that display device corresponds and realize angle adjustment, and rotate the space and can open along with opening between base and the apron, dismantle conveniently. The optical lens can be simply installed and detached in the display device, and meanwhile, the installed optical lens has flexible rotation capacity.

It should be understood that while this specification includes examples, any of these examples does not include only a single embodiment, and that this depiction of the specification is for clarity only. Those skilled in the art will recognize that the embodiments of the present utility model may be combined as appropriate with one another to form other embodiments as would be apparent to one of ordinary skill in the art.

The above list of detailed descriptions is only specific to possible embodiments of the present application, they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the teachings of the present application are intended to be included in the scope of the present application.

Claims (10)

1. A lens turning bracket, comprising:

a base for securing within the display device;

a cover plate mated with the base;

the base and the cover plate are connected through a movable structure to have an open state and a closed state;

when the base and the cover plate are in a closed state, a rotating space is formed between the base and the cover plate, the rotating space is used for accommodating a ball head of the optical lens connecting piece, and the ball head rotates in the rotating space;

when the base and the cover plate are in an open state, the rotating space exposes an opening for putting in or taking out the ball head.

2. The lens turning bracket according to claim 1, wherein mounting holes are provided at both ends of the base, and the base is fixed in the display device by screws passing through the mounting holes.

3. The lens turning bracket of claim 1, wherein the movable structure is a hinge structure.

4. The lens turning bracket of claim 1, wherein the base and the cover are secured together in a closed state by a snap fit to avoid loosening therebetween.

5. The lens rotating bracket according to claim 1, wherein the base is provided with a first side wall, a second side wall, a third side wall and a fourth side wall to enclose the rotating space and make the inner wall of the rotating space match with the shape of the ball head, and at least part of the fourth side wall is provided with a notch to place the part of the connecting piece connected with the ball head.

6. The lens turning bracket according to claim 1, wherein the cover covers the opening of the turning space so that the ball head placed in the turning space does not come off from the turning space when the base and the cover are in a closed state.

7. The lens turning bracket according to claim 6, wherein the cover plate is provided with a spring plate at a position corresponding to the opening of the turning space, the spring plate being adapted to abut against a ball surface in the turning space when the base and the cover plate are in a closed state.

8. A display device comprising the lens turning bracket of any one of claims 1-7.

9. The display device according to claim 8, further comprising an optical lens, wherein both ends of the optical lens are respectively fixed in the display device through the lens rotating bracket, and a ball head of a connecting piece at both ends of the optical lens rotates in a rotating space of the lens rotating bracket to drive the optical lens to adjust an angle in the display device.

10. A vehicle comprising the lens turning bracket of any one of claims 1-7, or the display device of any one of claims 8-9.

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