Screen flipping driving system
By combining a drive unit, output components, friction shaft, and damper, the problem of complex structure and high cost of existing in-vehicle screen dampers is solved, achieving stable screen rotation and holding, reducing costs and improving user experience.
Patent Information
- Application Number
- CN202522005510.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Existing in-vehicle screens have complex and costly damper structures, making it difficult to effectively maintain the stability of the screen in different positions.
The device employs a combination structure of a drive unit, an output component, a friction shaft, and a damper. The friction shaft is connected to the output component, and the damper applies a damping torque when the friction shaft rotates. Combined with a limit housing and a position sensor, this enables the screen to flip and remain stable.
It achieves stable screen rotation and hold, reduces structural complexity and cost, while providing a comfortable operating feel and noise reduction.
Smart Images
Figure CN224676012U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a screen flipping drive system, belonging to the field of vehicle technology. Background Technology
[0002] With the rapid development of modern technology, people's requirements for their quality of life are gradually increasing. As a result, the proportion of people installing in-vehicle displays in their vehicles is also increasing year by year. In-vehicle displays can not only allow passengers to watch movies, but also allow drivers to perform route analysis and route selection, thereby providing better services for people's travel.
[0003] Existing in-vehicle screens typically have a flip-up function. This allows the screen to be unfolded when in use and folded away when not in use, effectively utilizing the limited interior space of the vehicle.
[0004] To enable in-vehicle screens to stop and remain in different positions, the drive structure of typical in-vehicle screens incorporates a damping mechanism. However, the damping structure of existing in-vehicle screens is complex and costly. Utility Model Content
[0005] This disclosure provides a screen flipping driving system.
[0006] According to one aspect of this disclosure, a screen flipping driving system is provided, comprising: A driving device for generating driving force; An output component, wherein the driving device is used to drive the output component to rotate; wherein the screen is fixed to the output component so that the screen flips when the output component rotates; A friction shaft is connected to the output component, and when the output component rotates, it drives the friction shaft to rotate. A damper is sleeved on the friction shaft so that when the friction shaft rotates, the damper is used to apply a damping torque to the friction shaft.
[0007] According to at least one embodiment of the screen flipping drive system of the present disclosure, the rotation axis of the output component is the same as the rotation axis of the friction shaft.
[0008] According to at least one embodiment of the screen flipping drive system of the present disclosure, the output component includes an output shaft, one end of the output shaft is used to fix the screen, the other end of the output shaft is provided with a mounting hole, one end of the friction shaft is inserted into the mounting hole, and the friction shaft is interference-fitted with the output shaft.
[0009] According to at least one embodiment of the screen flipping drive system of the present disclosure, the damper includes a first end, a second end, and a winding portion connecting the first end and the second end, wherein at least a portion of the winding portion is in pressure contact with the friction shaft.
[0010] According to at least one embodiment of the screen flipping drive system of the present disclosure, the winding portion is wound around the friction shaft at least one turn.
[0011] A screen rotation driving system according to at least one embodiment of the present disclosure further includes: A limiting housing, the limiting housing including a receiving space, wherein at least a portion of the damper is disposed within the receiving space.
[0012] According to at least one embodiment of the screen flipping drive system of the present disclosure, the receiving space of the limiting housing includes an opening, and the two sides of the opening of the limiting housing are respectively formed as a first limiting part and a second limiting part. The first limiting part is used to limit the position of a first end of the damper, and the second limiting part is used to limit the position of a second end of the damper.
[0013] According to at least one embodiment of the screen flipping drive system of the present disclosure, the drive device includes a first housing, the output component is rotatably disposed in a second housing, the first housing and the second housing are fixedly connected, wherein the first housing and the second housing are arranged to overlap in the vertical direction.
[0014] A screen rotation driving system according to at least one embodiment of the present disclosure further includes: A position sensor is used to detect the position of the friction shaft.
[0015] According to at least one embodiment of the screen flipping drive system of this disclosure, the other end of the friction shaft passes through the limiting housing and is connected to the position sensor. Attached Figure Description
[0016] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0017] Figure 1 This is a schematic diagram of the structure of a screen flipping drive system according to one embodiment of the present disclosure.
[0018] Figure 2 This is a partial structural schematic diagram of a screen flipping drive system according to one embodiment of the present disclosure.
[0019] Figure 3This is a schematic diagram of the transmission relationship of the output component according to one embodiment of the present disclosure.
[0020] Figure 4 This is a schematic diagram showing the connection relationship between the output component and the friction shaft according to one embodiment of the present disclosure.
[0021] Figure 5 This is a schematic diagram of the structure of the second housing according to one embodiment of the present disclosure.
[0022] Figure 6 This is a schematic diagram of the structure of a damper according to one embodiment of the present disclosure.
[0023] Figure 7 This is a schematic diagram of the structure of a position sensor according to one embodiment of the present disclosure.
[0024] The specific labels in the attached figures are as follows: 100 drive unit 110 First Shell 200 Output Components 210 Output Shaft 220 threaded hole 230 sector gear 240 bearing 300 friction shaft 400 damper 410 First End 420 Second End 430 Winding section 500 Second housing 510 First Blocking Section 520 Second Block 530 First Buffer Block 540 Second Buffer Block 600 intermediate gear 700 Limiting Housing 710 First Limiting Section 720 Second Limiting Section 730 gasket 800 position sensor 900 Dust cover. Detailed Implementation
[0025] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.
[0026] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.
[0028] Figure 1 This is a schematic diagram of the structure of a screen flipping drive system according to one embodiment of the present disclosure. Figure 2 This is a partial structural schematic diagram of a screen flipping drive system according to one embodiment of the present disclosure.
[0029] like Figure 1 and Figure 2 As shown, the screen flipping drive system disclosed herein can be applied to vehicles to control the flipping operation of screens within the vehicle. This screen is not limited to the vehicle's central control screen.
[0030] Specifically, the screen flipping drive system disclosed herein may include components such as a drive device 100, an output component 200, a friction shaft 300, and a damper 400.
[0031] The drive device 100 can also be referred to as an actuator. It may include only a motor or it may include a motor and a reducer, thereby enabling the drive device 100 of this disclosure to generate driving force.
[0032] In one specific embodiment, the drive device 100 includes a first housing 110, which is formed in an elongated shape. A motor can be fixed inside the first housing 110, which is connected to a reducer and outputs power to the outside via the reducer.
[0033] The speed reducer disclosed herein can be a worm gear reducer, wherein a worm is provided on the rotating shaft of the motor, and the worm is connected to a gear component for transmission. The gear component is rotatably disposed within the first housing 110, thereby enabling the motor to drive the gear component to rotate.
[0034] The first housing 110 may have a through hole, and one end of the gear shaft of the gear component extends out from the through hole, wherein an internal spline is formed on the gear shaft.
[0035] See again Figure 1The first housing 110 and the second housing 500 of this disclosure are fixedly connected, wherein the first housing 110 and the second housing 500 are arranged to overlap in the vertical direction.
[0036] The vertical direction of this disclosure is based on Figure 1 The direction shown does not refer to the installation direction of the screen flip drive system of this disclosure on a vehicle. Moreover, the vertical direction of this disclosure can be the rotation axis of the gear shaft of the gear component.
[0037] The output component 200 is rotatably disposed on the second housing 500, and the drive device 100 is used to drive the output component 200 to rotate; wherein, the screen is fixed to the output component 200 so as to cause the screen to flip when the output component 200 rotates.
[0038] Figure 3 This is a schematic diagram of the transmission relationship of the output component according to one embodiment of the present disclosure.
[0039] like Figure 3 As shown, the screen flipping drive system of this disclosure also includes an intermediate gear 600, which is rotatably disposed on the second housing 500. Specifically, the second housing 500 of this disclosure is formed with an upward opening structure, and a cover can be provided on the second housing 500 to close the upward opening of the second housing 500.
[0040] The lower end of the gear shaft of the intermediate gear 600 is formed with an external spline, and the lower end of the gear shaft of the intermediate gear 600 is inserted into the gear shaft of the gear component, so that when the gear component rotates, it can drive the intermediate gear 600 to rotate.
[0041] The intermediate gear 600 is connected to the output component 200 in a transmission connection, so that when the intermediate gear 600 rotates, it can drive the output component 200 to rotate. In a preferred embodiment, the intermediate gear 600 and the output component 200 can form a deceleration transmission relationship, thereby enabling the screen flipping drive system of this disclosure to output a larger torque.
[0042] Figure 4 This is a schematic diagram showing the connection relationship between the output component 200 and the friction shaft according to one embodiment of the present disclosure.
[0043] like Figures 2 to 4 As shown, the output component 200 of this disclosure includes an output shaft 210, one end of which is used to fix the screen, and the other end of which has a mounting hole. Furthermore, the rotation axis of the output component 200 is arranged parallel to the rotation axis of the intermediate gear 600.
[0044] In a preferred embodiment, the output shaft 210 has multiple threaded holes 220, the axes of which are parallel to the axis of the output shaft 210. Screws pass through the bracket and are screwed into the threaded holes 220, thus fixing the bracket to the output shaft 210. Accordingly, when the screen is fixed to the bracket, the output shaft 210 can rotate the screen.
[0045] like Figure 4 As shown, the output component 200 of this disclosure also includes a sector gear 230, which is integrally formed with the output shaft 210. In this case, the intermediate gear 600 can mesh with the sector gear 230 so that power can be transmitted between the intermediate gear 600 and the output component 200.
[0046] like Figure 3 As shown, the intermediate gear 600 of this disclosure is formed as a spherical gear. Although not shown in this disclosure, those skilled in the art should know that the intermediate gear 600 can also be formed as a sector gear.
[0047] The second housing 500 of this disclosure is provided with a first blocking part 510 and a second blocking part 520, and the circumferential position of the sector gear 230 is restricted by the first blocking part 510 and the second blocking part 520. Thus, by providing the first blocking part 510 and the second blocking part 520, the screen can be prevented from being damaged by excessive rotation.
[0048] See again Figure 3 In this disclosure, a first buffer block 530 is provided near the first blocking part 510, and a second buffer block 540 is provided near the second blocking part 520. Thus, when the sector gear 230 rotates in the first direction (e.g., forward rotation), one circumferential end of it can contact the first buffer block 530 and be buffered by the first buffer block 530. When the sector gear 230 rotates in the second direction (e.g., reverse rotation), the other circumferential end of it can contact the second buffer block 540 and be buffered by the second buffer block 540. Thus, the sector gear 230 of this disclosure will not generate noise during rotation.
[0049] See again Figure 4 The lower end of the output shaft 210 of the output component 200 of this disclosure can be rotatably supported in the second housing 500 by a bearing 240, thereby the output component 200 of this disclosure has less resistance during rotation.
[0050] like Figure 4As shown, the friction shaft 300 of this disclosure is connected to the output component 200. When the output component 200 rotates, it drives the friction shaft 300 to rotate. In a preferred embodiment, the friction shaft 300 can be fixedly connected to the output component 200. In another preferred embodiment, the friction shaft 300 can be integrally formed with the output component 200.
[0051] In one specific embodiment, one end of the friction shaft 300 is inserted into the mounting hole, and the friction shaft 300 is interference-fitted with the output shaft 210, thereby enabling the friction shaft 300 of this disclosure to rotate synchronously with the output shaft 210. Furthermore, adhesive may be applied between the friction shaft 300 and the output shaft 210 of this disclosure, thereby making the connection between the friction shaft 300 and the output shaft 210 more secure.
[0052] In a preferred embodiment, the rotation axis of the output component 200 is the same as the rotation axis of the friction shaft 300. Thus, the output component 200 and the friction shaft 300 of this disclosure can be processed separately and assembled together, resulting in lower processing costs and a more convenient installation process.
[0053] A damper 400 is sleeved on the friction shaft 300 so that when the friction shaft 300 rotates, the damper 400 applies a damping torque to the friction shaft 300. In other words, whether the friction shaft 300 rotates clockwise or counterclockwise, the damper 400 can apply a damping torque to the friction shaft 300, thereby giving the screen flipping drive system of this disclosure a certain damping feel, and correspondingly, the screen flipping drive system can hold the screen in a preset position.
[0054] Figure 5 This is a schematic diagram of the structure of the second housing according to one embodiment of the present disclosure. Figure 6 This is a schematic diagram of the structure of a damper according to one embodiment of the present disclosure.
[0055] like Figure 5 and Figure 6 As shown, the screen flipping drive system of this disclosure also includes a limiting housing 700, which includes a receiving space, and at least a portion of the damper 400 is disposed within the receiving space.
[0056] Furthermore, a shim 730 is provided between the limiting housing 700 and the bearing 240, and the shim 730 is fitted onto the friction shaft 300. Accordingly, the shim 730 can restrict the position of the damper 400 in the vertical direction, thereby preventing the damper 400 from coming out of the receiving space of the limiting housing 700 and damaging the bearing 240 (or affecting the normal function of the bearing 240).
[0057] like Figure 4 and Figure 6As shown, the damper 400 of this disclosure includes a first end 410, a second end 420, and a winding portion 430 connecting the first end 410 and the second end 420, wherein at least a portion of the winding portion 430 is in pressure contact with the friction shaft 300, thereby enabling the damper 400 to apply a damping torque to the friction shaft 300 through the frictional contact between the winding portion 430 and the friction shaft 300.
[0058] In a preferred embodiment, the winding portion 430 is wound around the friction shaft 300 at least one turn. Figure 6 In the implementation shown, the winding portion 430 is wound 1.5 turns on the friction shaft 300, thereby enabling the damper 400 to apply a suitable damping torque to the friction shaft 300.
[0059] See again Figure 6 The accommodating space of the limiting housing 700 of this disclosure includes an opening. The two sides of the opening of the limiting housing 700 are respectively formed as a first limiting part 710 and a second limiting part 720. The first limiting part 710 is used to limit the position of the first end 410 of the damper 400, and the second limiting part 720 is used to limit the position of the second end 420 of the damper 400. As a result, the damper 400 of this disclosure will not rotate relative to the limiting housing 700. Accordingly, the damper 400 can stably apply damping to the friction shaft 300.
[0060] In other words, when the friction shaft 300 rotates, since the damper 400 does not rotate, the friction shaft 300 and the damper 400 will rotate relative to each other, thereby generating frictional damping. Moreover, the damping of the friction shaft 300 in both forward and reverse rotation is roughly the same, which improves the user experience.
[0061] Figure 7 This is a schematic diagram of the structure of a position sensor 800 according to one embodiment of the present disclosure.
[0062] like Figure 7 As shown, the screen flipping drive system disclosed herein also includes a position sensor 800, which is used to detect the position of the friction axis 300 and obtain the position of the screen based on the position of the friction axis 300.
[0063] In a preferred embodiment, the other end of the friction shaft 300 passes through the limiting housing 700 and is connected to the position sensor 800. Thus, the position sensor 800 is able to detect and record the absolute position of the friction shaft 300.
[0064] For example, the lower end of the friction shaft 300 has a D-shaped cross-section, so that the lower end of the friction shaft 300 can be inserted into the D-shaped hole of the position sensor 800. The position sensor 800 can be a rotary encoder, so that when the friction shaft 300 rotates, the position sensor 800 will feed back different absolute position information to the MCU.
[0065] A dust cover 900 can be provided on the limiting housing 700 of this disclosure, and the position sensor 800 can be disposed inside the dust cover 900. Moreover, the limiting housing 700 and the dust cover 900 of this disclosure can be disposed between the first housing and the second housing, thereby the screen flip drive system of this disclosure has a small footprint and can be conveniently arranged in a vehicle.
[0066] In a preferred embodiment, the worm gear and gear components are formed as a non-self-locking structure, thereby enabling the screen flipping drive system of this disclosure to achieve both electric drive and manual adjustment. In other words, when a user applies external force to the screen, causing it to flip, the screen can be manually driven to be in an open or closed state because the screen flipping drive system has no self-locking components.
[0067] The working principle of the screen flipping drive system disclosed herein is as follows: When powered, the actuator rotates and outputs, driving the output component to rotate, which in turn drives the vehicle screen to rotate synchronously with the output component; at this time, the damper (spring damper) provides damping force, which can realize the screen to start and stop slowly, and there is no risk of screen shaking.
[0068] In manual mode, the operator rotates the screen, causing the output components to rotate synchronously. At the same time, the actuator is non-self-locking, and the internal mechanism of the actuator is driven, enabling manual operation. In manual mode, the damper provides damping force, providing the operator with a comfortable operating feel.
[0069] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0071] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A screen flipping drive system, characterized in that, include: A driving device for generating driving force; An output component, wherein the driving device is used to drive the output component to rotate; wherein the screen is fixed to the output component so that the screen flips when the output component rotates; A friction shaft is connected to the output component, and when the output component rotates, it drives the friction shaft to rotate. A damper is sleeved on the friction shaft so that when the friction shaft rotates, the damper is used to apply a damping torque to the friction shaft.
2. The screen flipping drive system according to claim 1, characterized in that, The rotation axis of the output component is the same as the rotation axis of the friction shaft.
3. The screen flipping drive system according to claim 2, characterized in that, The output component includes an output shaft, one end of which is used to fix the screen, and the other end of which has a mounting hole. One end of the friction shaft is inserted into the mounting hole, and the friction shaft is interference-fitted with the output shaft.
4. The screen flipping drive system according to claim 1, characterized in that, The damper includes a first end, a second end, and a winding portion connecting the first end and the second end, wherein at least a portion of the winding portion is in pressure contact with the friction shaft.
5. The screen flipping drive system according to claim 4, characterized in that, The winding portion is wound around the friction shaft at least once.
6. The screen flipping drive system according to claim 5, characterized in that, Also includes: A limiting housing, the limiting housing including a receiving space, wherein at least a portion of the damper is disposed within the receiving space.
7. The screen flipping drive system according to claim 6, characterized in that, The accommodating space of the limiting housing includes an opening, and the two sides of the opening of the limiting housing are respectively formed as a first limiting part and a second limiting part. The first limiting part is used to limit the position of the first end of the damper, and the second limiting part is used to limit the position of the second end of the damper.
8. The screen flipping drive system according to claim 1, characterized in that, The driving device includes a first housing, and the output component is rotatably disposed on a second housing. The first housing and the second housing are fixedly connected, wherein the first housing and the second housing are arranged to overlap in the vertical direction.
9. The screen flipping drive system according to claim 1, characterized in that, Also includes: A position sensor is used to detect the position of the friction shaft.
10. The screen flipping drive system according to claim 9, characterized in that, The other end of the friction shaft passes through the limiting housing and is connected to the position sensor.