CN220220609U - Turning device for vehicle-mounted display screen and vehicle-mounted display screen system - Google Patents

Abstract

The disclosure provides a turning device for a vehicle-mounted display screen and a vehicle-mounted display screen system. The turning device is suitable for driving the vehicle-mounted display screen to turn over around the rotating shaft and comprises: a display screen bracket provided with a first mounting portion adapted to be attached to a vehicle-mounted display screen and a second mounting portion arranged parallel to the rotation shaft; a drive assembly attached to the second mounting portion and provided with a drive shaft parallel to the rotation shaft; the drive assembly is configured to include a first drive segment that moves along the drive shaft and a second drive segment that rotates about the drive shaft, the first drive segment coupled to the second drive segment to transmit a drive force, at least the first drive segment providing a self-locking function. The turning device of the present disclosure provides the self-locking function through the drive assembly itself to simple structure and convenient operation mode make on-vehicle display screen can overturn and lock under the user state after expanding, improved on-vehicle display screen's regulation precision and user's regulation and watching experience.

Description

Turning device for vehicle-mounted display screen and vehicle-mounted display screen system

Technical Field

The present disclosure relates to the technical field of vehicle-mounted display devices. And more particularly, to a tilting device for a vehicle-mounted display screen, and a vehicle-mounted display screen system including the same.

Background

In order to improve the riding experience of rear passengers in existing vehicles, an on-board display screen is usually installed on the back of a front seat. However, the position of such an in-vehicle display screen may vary with the adjustment of the front seat, thereby affecting the comfort of viewing by rear occupants. Thus, a ceiling type display screen has been developed. The ceiling type display screen is arranged on the roof lining and can be turned over to be opened or closed to be in a use state or a closed state. In use, the display screen is open and generally perpendicular to or angled from the roof for viewing by an occupant. In the closed state, the display screen is turned to be closed and approximately attached to the vehicle roof.

The overturning process of the ceiling type display screen can adopt manual overturning or motor overturning. The manual turnover mode has the problems of inconvenient adjustment, easy misoperation and the like, the motor turnover mode usually realizes the translation and turnover of the display screen through the driving motor, and for the turnover, the driving motor does not have a locking function after turning the display screen to a certain angle, and the problem of low adjustment precision possibly exists, so that the adjustment cannot be performed to the optimal watching position of an occupant. In addition, vibration during running of the vehicle may cause a problem that the display screen in a use state is shaken to have poor stability, and may cause damage to equipment.

Disclosure of Invention

The purpose of this disclosure is to solve the above-mentioned problem among the prior art, propose a turning device for on-vehicle display screen, realize controllable locking function to the upset of display screen, obtain more comfortable use experience.

To this end, according to one aspect of the present disclosure, there is provided a tilting device for an in-vehicle display screen, the tilting device being adapted to drive the in-vehicle display screen to tilt about a rotation axis and including: a display screen bracket provided with a first mounting portion adapted to be attached to a vehicle-mounted display screen and a second mounting portion arranged parallel to the rotation shaft; a drive assembly attached to the second mounting portion and provided with a drive shaft parallel to the rotation shaft; wherein the drive assembly is configured to include a first drive section moving along the drive shaft and a second drive section rotating about the drive shaft, the first drive section being coupled to the second drive section to transmit a drive force, at least the first drive section providing a self-locking function.

The present disclosure may further include any one or more of the following optional forms according to the above technical idea.

In some alternative forms, the first driving section comprises a motor, a screw rod coupled with the motor, and a driving nut sleeved on the screw rod, wherein the motor drives the screw rod to move along the driving shaft and drives the driving nut to synchronously move.

In some alternatives, the second drive section includes a swivel nut that mates with the drive nut, movement of the drive nut along the drive shaft driving rotation of the swivel nut about the drive shaft.

In some alternative forms, the rotating nut is sleeved inside the driving nut and is provided with external threads, and the driving nut is provided with corresponding internal threads.

In some alternative forms, the second mounting portion is configured as a hollow cylinder adapted to receive the drive assembly therein.

In some alternatives, the second drive section includes a rotational bearing that is fixed relative to the second mounting portion such that rotation of the second drive section about the drive shaft causes synchronous rotation of the second mounting portion.

In some alternatives, the flipping unit further comprises a spindle bracket attached to the second drive section of the drive assembly, the second drive section rotating about the drive shaft relative to the spindle bracket.

According to still another aspect of the present disclosure, there is provided a vehicle-mounted display screen system that is disposed on top of a vehicle and includes a vehicle-mounted display screen and the above-described tilting device for a vehicle-mounted display screen, the tilting device being attached to the vehicle-mounted display screen, wherein the rotation axis is parallel to a width direction of the vehicle to tilt the vehicle-mounted display screen in a front-rear direction of the vehicle.

In some alternative forms, the in-vehicle display screen system includes two flipping devices positioned at each end of the in-vehicle display screen, the two flipping devices being coaxial and linked to each other by a connecting rod attached to the display screen bracket of each flipping device.

In some alternative forms, the vehicle-mounted display system includes a display housing to house the display and the turning device, the display housing having a hollow receiving portion parallel to the rotation axis, the drive assembly and the second mounting portion of the display bracket being received in the hollow receiving portion.

In some alternative forms, the flipping unit comprises a spindle bracket attached to the second drive section of the drive assembly, the flipping unit being adapted to translate in the fore-aft direction of the vehicle through the spindle bracket.

The turnover device for the vehicle-mounted display screen provides a self-locking function through the driving assembly, so that the vehicle-mounted display screen can be turned to a proper position suitable for rear-row passengers to watch and locked in a unfolded use state in a simple and convenient operation mode, the adjustment precision of the vehicle-mounted display screen is improved, the position of the vehicle-mounted display screen can be kept stable even in the running process of a vehicle, and the user adjustment and watching experience is improved. In addition, the self-locking function of the turnover device disclosed by the utility model avoids the possibility of equipment damage caused by manual misoperation, and prolongs the service life.

Drawings

Other features and advantages of the present disclosure will be better understood from the following detailed description of alternative embodiments taken in conjunction with the accompanying drawings, in which like reference characters identify the same or similar parts throughout, and in which:

FIG. 1 is a schematic diagram of an in-vehicle display screen system showing a closed or stowed state, according to one embodiment of the present disclosure;

FIG. 2 is a schematic illustration of the vehicle display system of FIG. 1 in an open or deployed state;

FIG. 3 is a schematic view of the turning device in a storage state;

FIG. 4 is a schematic view of the flipping unit in the unfolded state;

FIG. 5 is a partial schematic view of the vehicle display system of FIG. 1 showing an exploded view of the one-sided inverter;

FIG. 6 is a schematic view of a first drive section of the drive assembly in a stowed condition, showing the display screen bracket in phantom;

FIG. 7 is similar to FIG. 6 and shows a first drive section and a second drive section of the drive assembly;

FIG. 8 is a schematic view of a first drive section of the drive assembly in an expanded state, showing the display screen bracket in phantom;

fig. 9 is similar to fig. 8 and shows a first drive section and a second drive section of the drive assembly.

Detailed Description

The making and using of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the disclosure, and do not limit the scope of the disclosure. The structural position of the various components as described, such as the directions of up, down, top, bottom, etc., is not absolute, but rather relative. When the individual components are arranged as shown in the figures, these directional expressions are appropriate, but when the position of the individual components in the figures changes, these directional expressions also change accordingly.

Herein, "front", "rear", "upper", "lower" are defined in terms of the actual direction of the vehicle, wherein "front", "rear" are relative to the direction of travel of the vehicle.

The terms "first," "second," and the like herein do not denote a limitation of order or quantity of components, unless otherwise indicated.

Herein, unless specifically limited otherwise, terms such as "mounted," "connected," "attached," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms herein above will be understood by those skilled in the art as the case may be.

It should be understood that the flip device for an in-vehicle display screen and in-vehicle display screen system of the present disclosure are applicable to a variety of suitable vehicles, the term "vehicle" including, but not limited to, vehicles, boats, aircraft, etc., wherein "vehicle" includes fuel vehicles, hybrid vehicles, electric vehicles, hydrogen powered vehicles, etc., and may be various vehicle types, such as small cars, buses, rail vehicles, etc. Hereinafter, the application environment of the tilting device and the in-vehicle display system is mainly described in terms of a vehicle such as a small car, but it is not excluded that the present disclosure is applicable to other types of vehicles.

It has been recognized that the ceiling type display of the existing vehicle does not have a locking function after being turned over to a certain angle, may have a problem of poor stability while the vehicle is running, and may cause damage to equipment due to vibration of the vehicle or human misoperation.

According to the concepts of the present disclosure, there is provided a tilting device for an in-vehicle display screen adapted to be attached to the in-vehicle display screen to drive the in-vehicle display screen to be tilted about a rotation axis, and an in-vehicle display screen system to which the tilting device is applied. With reference to fig. 1-5, the in-vehicle display system is disposed on top of a vehicle, such as a roof sheet metal or roof trim. In the illustrated embodiment, the in-vehicle display system includes a display housing 100, an in-vehicle display (not shown) and a tilting device 200 can be accommodated in the display housing 100, and the in-vehicle display can be tilted about a rotation axis by the tilting device 200. In some embodiments, the axis of rotation is parallel to the width direction of the vehicle, such as the Y direction in fig. 1, so that the in-vehicle display screen is flipped back and forth in the front-to-back direction (X direction) of the vehicle. When the vehicle-mounted display screen is turned to the position shown in fig. 1, the vehicle-mounted display screen is approximately parallel to the top of the vehicle and is in a closed or storage state; when flipped to the position shown in fig. 2, the on-board display screen is generally perpendicular or angled to the vehicle roof in an open or deployed state.

As shown in fig. 5, the display screen housing 100 is provided with a hollow receiving portion 110 parallel to the rotation axis, and the turning device 200 can be installed in the hollow receiving portion 110, so that the vehicle-mounted display screen system has no components affecting the external appearance when seen from the outside, has an attractive appearance, and can significantly improve the size of the occupied space in the Z direction.

In some embodiments, the turning device 200 includes a display screen bracket 210 and a driving component, where the display screen bracket 210 is adapted to be connected to a vehicle display screen, for example, by a threaded fastener, etc. through a connection hole provided on the display screen bracket 210, and is fixedly connected to the vehicle display screen and/or the display screen housing 100, and the driving component is adapted to drive the display screen bracket 210 and the vehicle display screen connected thereto to turn around a rotation axis. The driving assembly includes, for example, a motor 230, and converts driving force provided by the motor 230 into tilting motion of the display bracket 210 through a plurality of functional components. The tilt assembly 200 may also include a pivot bracket 220 adapted to provide positioning, securing, and/or translation along the roof of the vehicle of the in-vehicle display system.

Fig. 3 and 4 show schematic views of the flipping unit 200 in a stowed state and in a deployed state, respectively. In the illustrated embodiment, the in-vehicle display screen system includes two flipping devices respectively located at both ends of the in-vehicle display screen, which are coaxially disposed and linked to each other by a connecting rod 240. In some embodiments, the connecting rod 240 may be attached to the display bracket 210 of each flipping unit, for example, by fasteners. It should be understood that coaxial refers to the fact that the shafts of the two turning devices are coaxial, so that the synchronicity of the movement of the two ends of the vehicle-mounted display screen is ensured when the vehicle-mounted display screen is opened or closed. The two turning devices are mirror-symmetrical and for simplicity only one end of the turning device is described below.

Referring specifically to fig. 5, the display screen bracket 210 is provided with a first mounting portion 211 adapted to be attached to the in-vehicle display screen and a second mounting portion 212 arranged parallel to the rotation axis, and the driving assembly is attached to the second mounting portion 212 and provided with a driving shaft parallel to the rotation axis. In the illustrated embodiment, the drive shaft of the drive assembly is coaxial with the spindle to facilitate reducing the overall size of the upender. Advantageously, the second mounting portion 212 is provided as a hollow cylinder adapted to receive the drive assembly therein, which hollow cylinder advantageously is form-fit with the hollow receiving portion 110 of the display screen housing 100, such that the drive assembly and the second mounting portion of the display screen bracket can be received in the hollow receiving portion 110 to reduce the structural size of the in-vehicle display screen system.

It should be understood that the drive shaft and the rotation shaft do not necessarily mean a physical shaft, but an axis parallel to the Y direction.

According to the concepts of the present disclosure, a drive assembly is configured to include a first drive segment that moves along a drive shaft and a second drive segment that rotates about the drive shaft, the first drive segment coupled to the second drive segment to transmit a drive force, at least the first drive segment providing a self-locking function.

Specifically, in the illustrated embodiment, the first driving section includes a motor 230, a screw 250 coupled to the motor 230, and a driving nut 260 coupled to the screw 250, and the motor 230 may include, for example, a driving motor 231 and a motor sleeve 232 coupled to the outside of the driving motor 231. The motor 230 drives the screw 250 to move along the driving shaft and can drive the driving nut 260 to move synchronously. In this way, the screw rod 250 converts the rotational motion output from the motor 230 into linear motion along the driving shaft, thereby achieving primary deceleration, and further, the screw rod 250 drives the driving nut 260 to synchronously linearly move along the driving shaft, thereby achieving secondary deceleration. In this process, the screw rod 250 realizes automatic locking under the action of load to prevent the reverse motion of the load, thereby realizing the self-locking function provided at the first driving section and ensuring the safety and stability of the overturning process of the vehicle-mounted display screen. The screw rod is adopted to provide a self-locking function, so that the vehicle is easy to implement, low in cost and small in size, and is particularly beneficial to the application environment of a small space at the top of the vehicle.

In the illustrated embodiment, the second drive section includes a spin nut 270, the spin nut 270 cooperating with the drive nut 260 such that movement of the drive nut 260 along the drive shaft drives the spin nut 270 about the drive shaft. In some embodiments, the rotating nut 270 is sleeved inside the driving nut 260 and provided with external threads 271, and the driving nut 260 is provided with corresponding internal threads 261. In this way, during the linear movement of the driving nut 260, the linear movement is converted into the rotational movement by the female screw 261 and the male screw 271 engaged with each other, and three-stage deceleration is achieved. In some embodiments, the shaft support 220 is attached to a second drive section of the drive assembly, which second drive section rotates about the drive shaft relative to the shaft support 220, i.e., rotation of the second drive section does not rotate the shaft support 220, which may be accomplished, for example, by pivotally connecting the second drive section to the shaft support 220. Further, the flipping unit 200 can be translated in the front-rear direction of the vehicle by the rotation shaft bracket 220.

In some embodiments, the second drive section includes a rotational bearing 280, the rotational bearing 280 being fixed relative to the second mounting portion 212 of the display bracket 210 such that rotation of the second drive section about the drive shaft causes synchronous rotation of the second mounting portion 212 (i.e., the display bracket 210). As an example, the second mounting portion 212 in the form of a hollow cylinder is provided with an opening 213 in the side wall, and the rotation bearing 280 may be provided with a corresponding protruding structure adapted to be snapped into the opening 213 for positioning or fixing of the two. The rotation bearing 280 may be relatively fixed with the rotation nut 270, thereby transmitting the rotation motion of the rotation nut 270 to the second mounting portion 212.

Fig. 6 and 7 show the tilting device in a stowed state, fig. 8 and 9 show the tilting device in a deployed state, the display screen bracket being shown in broken lines for clarity. In the storage state, when the motor 230 is started and drives the first driving section to linearly move along the rotating shaft (or the driving shaft) in the Y direction, the linear movement of the screw rod 250 drives the driving nut 260 to linearly move, and reverse self-locking is realized in the process; the driving nut 260 moves linearly and further drives the rotating nut 270 to rotate due to the meshing action of the internal and external threads of the rotating nut 270, so that the display screen bracket is driven to rotate to an unfolding state through a rotating bearing relatively fixed with the rotating nut 270, and the overturning of the vehicle-mounted display screen is realized.

The turnover device disclosed by the utility model realizes driving and self-locking through the driving assembly in the process of driving the display screen to turn over and store or unfold, can be automatically locked to a required position after unfolding, is stable and avoids damage caused by manual misoperation when a vehicle runs, and is safe and reliable to apply. By adopting the scheme of the present disclosure, no additional resistance-increasing component is needed, and the overall size is reduced while the cost is reduced.

It should be understood herein that the embodiments shown in the figures illustrate only alternative shapes, sizes and arrangements of the flipping device and the in-vehicle display screen system for an in-vehicle display screen according to the present disclosure, which are illustrative only and not limiting, as other shapes, sizes and arrangements may be employed without departing from the spirit and scope of the present disclosure.

While the technical contents and features of the present disclosure have been disclosed above, it will be understood that those skilled in the art may make various changes and modifications to the above disclosed concept under the inventive concept of the present disclosure, but all fall within the scope of the present disclosure. The above description of embodiments is illustrative and not restrictive, and the scope of the disclosure is defined by the claims.

Claims (11)

1. A tilting device for an in-vehicle display screen, wherein the tilting device is adapted to drive the in-vehicle display screen to tilt about a rotation axis and comprises:

a display screen bracket provided with a first mounting portion adapted to be attached to a vehicle-mounted display screen and a second mounting portion arranged parallel to the rotation shaft;

a drive assembly attached to the second mounting portion and provided with a drive shaft parallel to the rotation shaft;

wherein the drive assembly is configured to include a first drive section moving along the drive shaft and a second drive section rotating about the drive shaft, the first drive section being coupled to the second drive section to transmit a drive force, at least the first drive section providing a self-locking function.

2. The turnover device for an in-vehicle display screen according to claim 1, wherein the first driving section comprises a motor, a screw rod coupled with the motor, and a driving nut sleeved on the screw rod, and the motor drives the screw rod to move along the driving shaft and drives the driving nut to move synchronously.

3. The tilting device for an in-vehicle display screen according to claim 2, wherein the second driving section includes a rotation nut, the rotation nut being engaged with the driving nut, and movement of the driving nut along the driving shaft drives the rotation nut to rotate around the driving shaft.

4. A turning device for a vehicle-mounted display screen according to claim 3, wherein the rotating nut is sleeved inside the driving nut and provided with external threads, and the driving nut is provided with corresponding internal threads.

5. The tilting device for an in-vehicle display screen according to claim 1, wherein the second mounting portion is provided in a hollow cylindrical shape so as to be adapted to accommodate the driving assembly therein.

6. The tilting device for an in-vehicle display screen according to claim 1, wherein the second driving section includes a rotation bearing fixed with respect to the second mounting portion such that rotation of the second driving section about the driving shaft causes the second mounting portion to rotate in synchronization.

7. The tilter for an in-vehicle display screen of claim 1, further comprising a spindle bracket attached to the second drive section of the drive assembly, the second drive section rotating about the drive axis relative to the spindle bracket.

8. A vehicle-mounted display screen system, characterized in that the vehicle-mounted display screen system is arranged on top of a vehicle and comprises a vehicle-mounted display screen and a turning device for a vehicle-mounted display screen according to any one of claims 1 to 7, which is attached to the vehicle-mounted display screen, wherein the rotation axis is parallel to a width direction of the vehicle so that the vehicle-mounted display screen turns in a front-rear direction of the vehicle.

9. The vehicle-mounted display screen system of claim 8, comprising two flipping devices positioned at each end of the vehicle-mounted display screen, the two flipping devices being coaxial and linked to each other by a connecting rod attached to the display screen bracket of each flipping device.

10. The vehicle-mounted display screen system of claim 8, comprising a display screen housing to house the vehicle-mounted display screen and the turning device, the display screen housing having a hollow receiving portion parallel to the rotation axis, the drive assembly and the second mounting portion of the display screen bracket being received in the hollow receiving portion.

11. The vehicle mounted display screen system of claim 8, wherein the flipping device comprises a spindle bracket attached to the second drive section of the drive assembly, the flipping device adapted to translate in a fore-aft direction of the vehicle through the spindle bracket.