Rotary vehicle-mounted display screen

Abstract

The invention provides a rotary vehicle-mounted display screen, and relates to the technical field of vehicle-mounted display screens, and the rotary vehicle-mounted display screen comprises a display screen which is used for displaying vehicle-mounted information; the driving device is provided with an output shaft for outputting rotating power and is positioned on the back of the display screen; the transmission chain is arranged between the output shaft and the display screen and is used for transmitting the rotating power, reducing the rotating speed of the rotating power and increasing the torque of the rotating power; and the connecting assembly is connected between the transmission chain and the display screen and is used for transmitting the rotating power after the rotating speed is reduced and the torque is increased to the display screen. The defect that a vehicle-mounted display screen in the related technology is poor in practicability is overcome.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle display screens, in particular to a vehicle rotary display screen. BACKGROUND

[0002] With the rapid development of the intelligent and technological of the automobile industry, the vehicle display screen has become an indispensable part of the vehicle. The driver and passenger can not only adjust and set the vehicle through the display screen, but also can realize the operation of various functions such as listening to music, road navigation, Bluetooth connection, vehicle video, etc., which can bring good driving help and riding comfort to the driver and passenger.

[0003] The inventor finds that the traditional navigation screen can only be used at a fixed angle, and the displayed direction and angle cannot be adjusted, which not only causes poor viewing effect, but also leads to the defect of inconvenient operation of the driver, thereby reducing the practicability of the vehicle display screen. SUMMARY

[0004] Based on the above status, the main purpose of the present application is to provide a rotary vehicle display screen, which aims to solve the defect of poor practicability of the vehicle display screen in the related art.

[0005] A rotary vehicle display screen, comprising:

[0006] a display screen for displaying vehicle information;

[0007] a driving device provided with an output shaft for outputting rotary power, and located at the back of the display screen;

[0008] a transmission chain arranged between the output shaft and the display screen, for transmitting the rotary power and reducing the rotating speed of the rotary power and increasing the torque of the rotary power;

[0009] a connecting assembly connected between the transmission chain and the display screen, for transmitting the rotary power with reduced rotating speed and increased torque to the display screen.

[0010] Preferably, the transmission chain is provided with a worm gear and a worm, the transmission chain has the worm as a first end and the worm gear as a last end, the worm at the first end of the transmission chain is fixedly connected with the output shaft along the length direction of the output shaft, the worm gear at the last end of the transmission chain is synchronously rotated with the display screen through the connecting assembly, and the worm at the first end of the transmission chain is engaged with the worm gear at the last end of the transmission chain.

[0011] Preferably, the transmission chain comprises a plurality of worm gears and a plurality of worm gears; the transmission chain has one worm gear as a first end and one worm gear as a last end; the worm gear at the first end of the transmission chain is fixedly connected to the output shaft along the length direction of the output shaft; the worm gear at the last end of the transmission chain is synchronously rotated with the display screen through the connecting assembly; the worm gears and worm gears between the first end and the last end of the transmission chain are arranged in an interlaced manner, and along the transmission direction of the rotational power, the worm gear is fixedly connected to the previous worm gear and engaged with the next worm gear.

[0012] Preferably, the connecting assembly comprises:

[0013] a main shaft passing through the center of the worm gear at the last end of the transmission chain along a direction perpendicular to the display screen and synchronously rotating with the display screen;

[0014] a rotating bracket fixedly connected to the end of the main shaft close to the display screen, the rotating bracket being provided with a first clamping structure on the side facing the worm gear at the last end of the transmission chain;

[0015] a clamping bracket provided between the rotating bracket and the worm gear at the last end of the transmission chain, the clamping bracket being fixedly connected to the worm gear at the last end of the transmission chain, and the side of the clamping bracket facing the rotating bracket being provided with a second clamping structure adapted to be clamped with the first clamping structure;

[0016] a connecting bracket fixedly connected to the back of the display screen on one side and fixedly connected to the rotating bracket on the other side.

[0017] Preferably, one of the first clamping structure and the second clamping structure is provided as a protrusion, and the other is provided as a groove adapted to be clamped with the protrusion.

[0018] Preferably, the protrusion is provided as an arc-shaped protruding structure, the groove is provided as at least two arc-shaped recessed structures, the two grooves are separated by 90°, and the at least two grooves correspond to the horizontal screen state of the display screen and the vertical screen state of the display screen, respectively.

[0019] Preferably, an elastic member and a limiting ring for blocking the movement of the elastic member are provided on the main shaft, the limiting ring is located on the side of the worm gear at the last end of the transmission chain away from the display screen, and the limiting ring is fixedly connected to the main shaft, the elastic member is located between the limiting ring and the worm gear at the last end of the transmission chain, and the elastic member is always in a compressed state for applying an elastic force to the clamping bracket to increase the friction between the clamping bracket and the rotating bracket.

[0020] Preferably, a gasket and a bearing are sleeved on the main shaft, the bearing is in contact with the gasket and the worm gear at the end of the transmission chain on both sides, and the gasket is in contact with the worm gear and the elastic piece on both sides.

[0021] Preferably, the vehicle-mounted display screen comprises:

[0022] A protective cover is arranged outside the transmission chain and the driving device.

[0023] A cover plate is arranged between the clamping support and the protective cover, used for covering the inside of the protective cover, and the cover plate and the protective cover are fixedly connected.

[0024] A connecting cover is arranged outside the bearing, and the main shaft passes through the connecting cover.

[0025] A fixing frame is fixedly connected to the side of the connecting cover away from the protective cover.

[0026] An exhibition frame is provided with a mounting port on the side away from the display screen, and the protective cover, the cover plate, the connecting cover and the fixing frame are all arranged in the exhibition frame, and the fixing frame and the exhibition frame are fixedly connected.

[0027] A rear cover is arranged at the mounting port, used for closing the mounting port, and the rear cover and the exhibition frame are fixedly connected.

[0028] Preferably, the main shaft is provided with an electromagnetic encoder at the end away from the rotating support, the electromagnetic encoder is fixedly connected to the fixing frame, a magnet is arranged at the end of the main shaft towards the electromagnetic encoder, and the magnet and the electromagnetic encoder have a gap therebetween.

[0029] Advantages

[0030] 1. The rotating vehicle-mounted display screen provided in the example embodiments of the present application aims to optimize the multi-angle adjustment function of the display screen. When the angle of the display screen needs to be adjusted, the driving device is first started to generate the necessary rotating power. Then, the output shaft transmits the rotating power to the transmission chain, and the transmission chain has an adjusting effect on the rotating power, which can reduce the rotating speed and increase the torque of the rotating power, so as to ensure the stability and efficiency of the rotating power transmission. The adjusted rotating power is transmitted to the display screen through the connecting assembly, so as to realize the stable rotation of the display screen, which can not only maintain the horizontal screen mode, but also flexibly convert to the vertical screen mode. Through the above structure, the visual experience of the display screen is improved, the operation of the driver is greatly facilitated, and the practicability and functionality of the vehicle-mounted display screen are comprehensively enhanced.

[0031] 2. When the car display screen fails, the user does not need to worry about the screen rotation problem. By manual rotation, the user can easily adjust the screen from a horizontal screen state to a vertical screen state, or vice versa, providing great convenience and flexibility for users. Specifically, when the user needs to manually rotate the display screen, he only needs to hold the display screen and apply a rotating force, and the display screen is driven to rotate synchronously with the rotating support and the main shaft through the connecting support. During rotation, the protrusion is elastically deformed, comes out of the current groove, and accurately clamps into the next groove, realizing smooth switching of the display screen between the horizontal screen and the vertical screen. This structure not only simplifies the operation process, but also ensures that the position of the screen after manual rotation still has good stability and reliability. The worm and gear mechanism in the embodiment of the application has a unique one-way transmission characteristic. When the driving device drives the display screen to rotate, the rotating power can be transmitted from the worm to the worm gear, and when the display screen is manually rotated, the rotating power cannot be transmitted in reverse, i.e. from the worm gear to the worm. This feature ensures that when the display screen is manually rotated, the worm gear at the end of the transmission chain is locked by the engaged worm gear, so that the rotating power cannot be transmitted in reverse, thereby avoiding the rotating support and the main shaft from rotating the clamping support and the worm gear at the end of the transmission chain. Therefore, the main shaft will rotate relative to the worm gear at the end of the transmission chain at this time, so that the rotating power cannot be transmitted in reverse to the driving device, effectively protecting the driving device and preventing unnecessary wear and tear and damage.

[0032] Other benefits of the application will be described in the specific embodiments by introducing specific technical features and technical solutions. Those skilled in the art should understand the beneficial technical effects brought by the technical features and technical solutions through the introduction of the technical features and technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0033] A preferred embodiment of a rotating car display screen will be described below with reference to the accompanying drawings. In the drawings:

[0034] Figure 1 A structure diagram of a rotating car display screen in the embodiment of the application is shown;

[0035] Figure 2 A structure diagram of the inside of the display stand in the embodiment of the application is shown;

[0036] Figure 3 An exploded view of the internal structure of the display stand in the embodiment of the application is shown;

[0037] Figure 4 An exploded view between the connecting assembly and the display screen in the embodiment of the application is shown;

[0038] Figure 5An explosion view of the various components mounted on the main shaft and the main shaft in the embodiment of the application is shown.

[0039] Label description:

[0040] 1, display screen; 2, driving device; 3, transmission chain; 31, first worm; 32, second worm; 33, first worm gear; 34, second worm gear; 4, connecting assembly; 41, main shaft; 411, elastic member; 412, limiting ring; 413, gasket; 414, bearing; 415, mounting hole; 416, magnet; 42, rotating support; 421, protrusion; 43, clamping support; 431, groove; 44, connecting support; 5, protective cover; 6, cover plate; 7, connecting cover; 8, fixing frame; 81, support rod; 9, display stand; 91, mounting port; 92, connecting port; 93, rear cover; 10, electromagnetic encoder. DETAILED DESCRIPTION

[0041] The application is described below based on the embodiments, but the application is not limited to only these embodiments. In the following detailed description of the application, some specific details are described in detail in order to avoid obscuring the essence of the application, and the well-known methods, processes, procedures, elements are not described in detail.

[0042] In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and the drawings are not necessarily drawn to scale.

[0043] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".

[0044] In the description of the application, it should be understood that the terms "first", "second", etc. are only for the purpose of description and cannot be understood as indicating or implying relative importance. In addition, in the description of the application, unless otherwise stated, the meaning of "multiple" is two or more.

[0045] Reference Figure 1 and Figure 4 As shown in the drawings, a rotary vehicle display screen is provided in the embodiment of the application, comprising:

[0046] The display screen 1 is used to display vehicle information.

[0047] The driving device 2 is provided with an output shaft for outputting rotary power and is located at the back of the display screen 1.

[0048] A transmission chain 3 is arranged between the output shaft and the display screen 1, and is configured to transmit the rotating power and reduce the rotating speed of the rotating power and increase the torque of the rotating power.

[0049] A connecting assembly 4 is arranged between the transmission chain 3 and the display screen 1, and is configured to transmit the rotating power with reduced rotating speed and increased torque to the display screen 1.

[0050] In the embodiment, the rotating vehicle-mounted display screen further comprises a display stand 9, the front surface of the display stand 9 is provided with a connecting opening 92, and the back of the display stand 9 is provided with a mounting opening 91, the connecting opening 92 ensures that the display screen 1 can be stably arranged on the front surface of the display stand 9, and the mounting opening 91 provides a convenient mounting path for the driving device 2, the transmission chain 3 and the connecting assembly 4. The driving device 2, the transmission chain 3 and the connecting assembly 4 are assembled into the display stand 9 through the mounting opening 91, and the connecting assembly 4 extends from the connecting opening 92 and is connected to the display screen 1, thereby ensuring the flexible rotation and stable display of the display screen.

[0051] The display stand 9 not only provides stable support for the driving device 2, the transmission chain 3 and the connecting assembly 4 inside the display stand 9, but also creates a good working environment, thereby effectively ensuring the stability and reliability of the driving device 2, the transmission chain 3 and the connecting assembly 4 during work. In order to realize the cleaning and protection of the inside of the display stand 9, a rear cover 93 is arranged at the mounting opening 91, the rear cover 93 is tightly connected to the display stand 9 through bolts, and a solid barrier is formed. Of course, the fixing mode of the rear cover 93 and the display stand 9 is not limited to this.

[0052] In the embodiment, when the user needs to adjust the position of the display screen 1, the driving device 2 is first used to make the rotating power be output through the output shaft, the output shaft transmits the rotating power to the transmission chain 3, the transmission chain 3 not only receives the rotating power of the output shaft, but also optimizes the rotating power during transmission, i.e., reduces the rotating speed and increases the torque, which increases the torque of the rotating power and reduces the rotating speed, thereby ensuring the stability and efficiency of the transmission of the rotating power and enabling the rotating power to stably drive the display screen 1 to rotate.

[0053] After the optimization of the transmission chain 3, the rotating power with reduced rotating speed and increased torque is transmitted to the connecting assembly 4. The connecting assembly 4 serves as a bridge between the display screen 1 and the transmission chain 3, transmits the received rotating power to the display screen 1, and enables the display screen 1 to rotate, thereby realizing the flexible adjustment of the position of the display screen 1. Through the above structure, the stability of the display screen 1 during operation is ensured, the viewing effect of the display screen 1 is improved, the user is facilitated to operate the display screen 1, and the practicability of the vehicle-mounted display screen is effectively improved.

[0054] Referring to Figure 4 and Figure 5As shown, in the embodiments of the present application, the transmission chain 3 is configured by a plurality of worm gears and a plurality of worms. Notably, it can be configured by a single worm gear and a single worm to achieve a simplified power transmission path, or it can be configured by a plurality of worm gears and a plurality of worms to build a more complex and precise transmission system to meet the power conversion needs in different application scenarios.

[0055] In the embodiments of the present application, when the transmission chain 3 adopts a worm gear and a worm configuration, the worm should be arranged at the head end of the transmission chain 3, and the worm gear should be arranged at the tail end of the transmission chain 3. Specifically, the worm at the head end of the transmission chain 3 is fixedly connected to the end of the output shaft, the worm gear at the tail end of the transmission chain 3 is connected to the connecting assembly 4, so that the connecting assembly 4 rotates synchronously with the worm gear, and the worm at the head end of the transmission chain 3 is engaged with the worm gear at the tail end of the transmission chain 3. Through the above structure, the engagement of the worm and the worm gear not only achieves power transmission, but also cleverly plays the effect of speed reduction and torque increase, improves the torque of the rotary power, and at the same time reduces the speed, ensuring the stability and efficiency of power transmission.

[0056] When the output shaft starts to rotate, the worm rotates synchronously, and through the engagement with the worm gear, the worm gear is driven to rotate, which realizes speed reduction and torque increase in the process. The worm gear can directly drive the display screen 1 through the connecting assembly 4, thereby realizing the stable rotation of the display screen 1 and ensuring that the display screen 1 can rotate smoothly.

[0057] In the embodiments of the present application, when the transmission chain 3 adopts a plurality of worm gears and a plurality of worms, the number of worm gears and worms should be consistent, and they should be arranged in an interleaved manner along the power transmission direction of the transmission chain 3 to form a continuous and efficient power transmission path. Specifically, the starting point of the transmission chain 3 should be arranged as a worm, and the tail end should be arranged as a worm gear. The worm gears and worms between the head end and the tail end of the transmission chain 3 are connected in a specific manner: each worm is fixedly connected to the previous worm gear, and at the same time forms engagement with the next worm gear. This connection mode ensures the continuity and stability of power transmission.

[0058] Through this connection mode, a complete transmission chain 3 is constructed, and the rotary power realizes the effect of speed reduction and torque increase in the engagement process between the worm and the worm gear, which improves the torque and reduces the speed, ensuring the stability and efficiency of power transmission. The specific number of worm gears and worms is not specially limited in the embodiments of the present application, which means that the length of the transmission chain 3 and the efficiency of power transmission can be flexibly adjusted according to actual needs to adapt to different application scenarios, providing a wider design space and higher technical flexibility for precise control and stable operation of the display screen 1.

[0059] As a preferred example of adopting multiple worm gears and multiple worm gears in the transmission chain 3, in the embodiment of the application, the worm gears and worm gears are both set to two, specifically including a first worm gear 31, a second worm gear 32, a first worm gear 33 and a second worm gear 34. Among them, the first worm gear 31 is fixedly connected with the output shaft along the length direction of the output shaft, ensuring the directness and stability of power transmission. The first worm gear 33 is engaged with the first worm gear 31, realizing the first speed reduction and torque increase of power. The second worm gear 32 is located on one side of the first worm gear 33, and is fixedly connected with the first worm gear 33 along the rotation axis of the first worm gear 33, not only optimizing the space utilization, but also ensuring the continuity of power transmission. The second worm gear 34 is engaged with the second worm gear 32, and is directly connected with the connecting assembly 4, not only reducing the speed and increasing the torque of the rotating power again, but also ensuring that the power can be accurately transmitted to the display screen 1.

[0060] Through the above structure, when the transmission chain 3 transmits the rotating power, the power transmission process is divided into multiple stages, realizing efficient conversion of power and optimization of space position. Specifically, the output shaft first drives the first worm gear 31 to rotate, and the first worm gear 31 drives the first worm gear 33 to rotate through the engagement with the first worm gear 33, realizing the speed reduction and torque increase of the rotating power. Then, the first worm gear 33 drives the second worm gear 32 to rotate through the fixed connection, not only ensuring the continuity of power transmission, but also further optimizing the conversion efficiency of power. The second worm gear 32 drives the second worm gear 34 to rotate, and finally the second worm gear 34 transmits the rotating power to the display screen 1 through the connecting assembly 4, realizing efficient use of power and optimization of space layout.

[0061] Through the above transmission of the transmission chain 3 to the rotating power, not only the speed reduction and torque increase of the rotating power are realized, but also the space position of the rotating power is changed, so that the driving device 2 and the display screen 1 can be staggered, without being located on the same straight line, greatly optimizing the space layout of the vehicle-mounted display screen. Effectively improve the practicability of the vehicle-mounted display screen.

[0062] In the embodiment of the application, the connecting assembly 4 includes a main shaft 41, which is arranged on the back of the display screen 1 along a direction perpendicular to the display screen 1. The main shaft 41 is synchronously rotated with the worm gear at the end of the transmission chain 3 and the display screen 1, ensuring the stability and balance of the display screen 1 when rotating. When the worm gear at the end of the transmission chain 3 starts to rotate, it can directly drive the main shaft 41 to rotate synchronously, and the rotation of the main shaft 41 further drives the display screen 1 to rotate, realizing seamless connection of power transmission.

[0063] For the connection structure between the main shaft 41 and the worm gear at the end of the transmission chain 3 and between the main shaft 41 and the display screen 1, the embodiment of the present application is not specially limited. The connection mode can be fastening connection through bolts, ensuring the reliability and stability of the connection; or welding mode can be used to improve the strength and durability of the connection; or clamping mode can be used to realize quick assembly and disassembly, improve production efficiency and maintenance convenience.

[0064] As a preferred scheme in the embodiment of the present application, the structure of the connecting assembly 4 is further optimized, so that the connecting assembly 4 not only includes the main shaft 41, but also includes a rotating support 42, a clamping support 43 and a connecting support 44.

[0065] The rotating support 42 is fixedly connected with the main shaft 41 at the end close to the back of the display screen 1. The fixed connection mode is flexible and various, and is not limited, and in the embodiment of the present application, the rotating support 42 and the main shaft 41 are an integral structure. The clamping support 43 is located between the rotating support 42 and the worm gear at the end of the transmission chain 3, the main shaft 41 passes through the center of the clamping support 43, and the clamping support 43 is fixedly connected with the worm gear at the end of the transmission chain 3. The fixed mode is also not limited, and in the embodiment of the present application, the worm gear at the end of the transmission chain 3 and the clamping support 43 are also an integral structure. The connecting support 44 is located between the rotating support 42 and the display screen 1, the connecting support 44 is fixedly connected with the display screen 1 through bolts, and the connecting support 44 is also fixedly connected with the rotating support 42 through bolts. Of course, the fixed mode between the three is also not limited.

[0066] A first clamping structure is arranged on the side of the rotating support 42 facing the clamping support 43, a second clamping structure is arranged on the side of the clamping support 43 facing the rotating support 42, and the first clamping structure and the second clamping structure are clamped and matched. The stable connection between the rotating support 42 and the clamping support 43 is ensured, and the stable transmission of the rotating power is realized.

[0067] When the worm gear at the end of the transmission chain 3 starts to rotate, the clamping support 43 is driven to rotate, and the clamping support 43 drives the rotating support 42 and the main shaft 41 to rotate through the second clamping structure of the clamping support 43 and the first clamping structure of the rotating support 42. The display screen 1 is rotated through the connecting support 44 when the rotating support 42 rotates, so as to realize the adjustment of the angle of the display screen 1.

[0068] In the embodiments of the present application, the specific structures of the first clamping structure and the second clamping structure are not particularly limited. As long as the synchronous rotation of the rotating support 42 and the clamping support 43 can be ensured, any feasible clamping structure is included in the scope of consideration. As a preferred scheme in the embodiments of the present application, the first clamping structure is provided as a protrusion 421, and the second clamping structure is provided as a groove 431 adapted to clamp the protrusion 421, and the protrusion 421 is clamped into the groove 431, thereby achieving the synchronous rotation of the rotating support 42 and the clamping support 43. It is worth noting that in this scheme, the structures of the first clamping structure and the second clamping structure are not fixed and can be flexibly interchanged. This means that the first clamping structure can also be provided as a groove 431, and the second clamping structure is correspondingly provided as a protrusion 421.

[0069] Further, the protrusion 421 is provided as at least one arc-shaped protruding structure, and the groove 431 is provided as at least two arc-shaped recessed structures, and the included angle between the two grooves 431 is designed as 90°. This layout ensures that the display screen 1 can be switched between the horizontal screen and the vertical screen, and can maintain a good stable state after switching, to meet the use requirements of users in different scenarios. When the vehicle-mounted display screen fails, the user does not need to worry about the problem that the screen cannot be rotated. Through manual rotation, the user can easily adjust the screen from the horizontal screen state to the vertical screen state, or vice versa, providing great convenience and flexibility for the user.

[0070] It is worth noting that the worm and gear mechanism in the embodiments of the present application has a unique one-way transmission characteristic. When the driving device 2 drives the display screen 1 to rotate, the rotating power can be transmitted from the worm to the gear, and when the display screen 1 is manually rotated, the rotating power cannot be transmitted in reverse, i.e. from the gear to the worm. This characteristic ensures that when the display screen 1 is manually rotated, the worm gear at the end of the transmission chain 3 is locked by the engaged worm gear, so that the rotating power cannot be transmitted in reverse, thereby avoiding the rotation of the rotating support 42 and the main shaft 41 when the clamping support 43 and the worm gear at the end of the transmission chain 3 are rotated. Therefore, the main shaft 41 will rotate relative to the worm gear at the end of the transmission chain 3 at this time, so that the rotating power cannot be transmitted in reverse to the driving device 2, effectively protecting the driving device 2 and preventing unnecessary wear and damage.

[0071] In the embodiment of the present application, in order to further improve the stability and reliability of the display screen 1 in daily use, the number of the protrusions 421 and the grooves 431 is set to four. The four protrusions 421 and the four grooves 431 form a one-to-one corresponding relationship, the four grooves 431 are distributed in a uniform interval around the side of the clamping support 43 facing the rotating support 42, and the four protrusions 421 are distributed in a uniform interval around the side of the rotating support 42 facing the clamping support 43. This layout not only optimizes the structure of the connecting assembly 4, but also ensures the balance of the screen in different states.

[0072] Among the above-mentioned four grooves 431, two oppositely arranged grooves 431 correspond to the horizontal screen state of the display screen 1, and the other two oppositely arranged grooves 431 correspond to the vertical screen state of the display screen 1. Manually rotating the display screen 1 in the same direction can achieve the adjustment of the horizontal screen and the vertical screen state. Moreover, no matter whether the display screen 1 is in the horizontal screen state or the vertical screen state, each protrusion 421 can be accurately clamped in the corresponding groove 431, achieving stable fixation of the display screen 1 in different use scenarios. It ensures that the protrusions 421 will not accidentally fall out of the grooves 431 during normal use, thereby providing good stability for the display screen 1. In addition, the use of the four protrusions 421 and the four grooves 431 also improves the durability and reliability of the connecting assembly 4.

[0073] In the embodiment of the present application, in order to further improve the stability of the vehicle-mounted display screen and the damping feeling during rotation, the elastic member 411 and the limiting ring 412 are further sleeved on the main shaft 41. The limiting ring 412 is positioned on the side of the worm wheel at the end of the transmission chain 3 away from the clamping support 43, and the limiting ring 412 is fixed relative to the main shaft 41. The fixed manner is not specially limited, and in the present application, a clamping groove is processed on the circumferential side wall of the main shaft 41, and the limiting ring 412 is clamped in the clamping groove, thereby achieving the fixation of the main shaft 41 and the limiting ring 412. The elastic member 411 is positioned between the limiting ring 412 and the worm wheel at the end of the transmission chain 3, and the elastic member 411 is always in an elastic state for applying an elastic force to the worm wheel at the end of the transmission chain 3, thereby increasing the friction between the clamping support 43 and the rotating support 42, providing a just-right damping feeling when manually rotating the display screen 1, and after rotating to the appropriate position, the elastic member 411 can also release its elastic potential energy to drive the protrusions 421 to be clamped into the grooves 431 again, thereby improving the stability and operation feeling of the display screen 1. The structure of the elastic member 411 is not specially limited, as long as it can provide an elastic force along the length direction of the main shaft 41. In the present application, the elastic member 411 is preferably set as a spring.

[0074] The specific operation is as follows: When the user needs to manually rotate the display screen 1, they only need to hold the display screen 1 and apply rotational force. The display screen 1 drives the rotating bracket 42 and the main shaft 41 to rotate synchronously through the connecting bracket 44. During the rotation, the protrusion 421 first disengages from the groove of the current 431. At this time, the rotating bracket 42 moves away from the locking bracket 43, and the elastic element 411 continues to be compressed. When the cam 421 rotates to align with the next groove 431, the elastic element 411 releases its elastic potential energy, causing the rotating bracket 42 to move towards the locking bracket 43, thereby accurately locking the protrusion 42 into the next groove 431, realizing a smooth switch between landscape and portrait modes for the display screen 1. This structure not only simplifies the operation process but also ensures that the screen maintains good stability and reliability after manual rotation.

[0075] In this embodiment, to further optimize the structure of the vehicle display screen and ensure its smoothness and quietness during transmission, a bearing 414 and a washer 413 are provided between the elastic element 411 and the worm gear at the end of the transmission chain 3 on the main shaft 41. The bearing 414 is positioned between the worm gear at the end of the transmission chain 3 and the washer 413, while the washer 413 is positioned between the bearing 414 and the elastic element 411. The elastic force of the elastic element 411 is applied to the washer 413, so that the washer 413, the bearing 414, and the worm gear at the end of the transmission chain 3, as well as the snap-fit ​​bracket 43 and the rotating bracket 42, can achieve a tight fit, eliminating gaps between parts and preventing abnormal noises caused by machining errors during transmission.

[0076] Reference Figure 2 and Figure 3 As shown in this embodiment, the vehicle-mounted display screen further includes:

[0077] Protective cover 5 is installed on the outside of the transmission chain 3 and the drive device 2;

[0078] The cover plate 6 is located between the snap-fit ​​bracket 43 and the protective cover 5, and is used to cover the inside of the protective cover 5. The cover plate 6 and the protective cover 5 are fixedly connected.

[0079] A connecting cover 7 is provided on the outside of the bearing 414, and the main shaft 41 passes through the connecting cover 7;

[0080] The fixing bracket 8 is fixedly connected to the side of the connecting cover 7 that is away from the protective cover 5.

[0081] In the embodiment of the present application, the protective cover 5 plays a crucial role in protecting the driving device 2, not only providing reinforced support for the driving device 2 in the display stand 9, but also ensuring that the driving device 2 maintains good stability in various use environments. Further, the protective cover 5 enhances the protective performance of the structure. The cover plate 6 shields the side of the protective cover 5 facing the clamping bracket 43. The cover plate 6 is also provided with a plurality of support structures on the side facing the protective cover 5. These support structures can provide stable support for the transmission chain 3, significantly improving the stability and reliability of the transmission chain 3 and ensuring the smoothness and accuracy of the transmission process.

[0082] The bearing 414 is installed between the connecting cover 7 and the main shaft 41. Through the cooperation of the bearing 414 and the connecting cover 7, the main shaft 41 is provided with good support effect, improving the stability and smoothness of the main shaft 41 during rotation. At the same time, the connecting cover 7 also bears the protection of the bearing 414 and the connection with the fixed frame 8. The fixed frame 8 is installed and fixed with the inner wall of the display stand 9 through bolts, thereby realizing the installation of various components in the display stand 9 and ensuring that the various components have good stability in the display stand 9.

[0083] In the embodiment of the present application, the fixed frame 8 is provided with a through hole, and the end of the main shaft 41 away from the display screen 1 extends out of the through hole. The main shaft 41 is also provided with an electromagnetic encoder 10 at the end away from the display screen 1. The electromagnetic encoder 10 and the main shaft 41 maintain a certain gap therebetween, and the electromagnetic encoder 10 is fixedly connected with the fixed frame 8. The fixed connection mode between the two is not specially limited. In the present application, a preferred fixing mode is that four support rods 81 are fixedly arranged on the side of the fixed frame 8 facing the electromagnetic encoder 10. The four support rods 81 are respectively located at the four corner positions of the electromagnetic encoder 10, and are threadedly connected with the electromagnetic encoder 10 through bolts, thereby realizing the connection and fixation of the electromagnetic encoder 10 and the fixed frame 8. The main shaft 41 is provided with a mounting hole 415 at the end facing the electromagnetic encoder 10, and a magnet 416 is installed in the mounting hole 415. The magnet 416 has a radial magnetizing effect and can be used in cooperation with the electromagnetic encoder 10. The display screen 1 is fixed opposite to the magnet 416. After the display screen 1 rotates, the electromagnetic encoder 10 can identify the angle of rotation of the magnet 416 and output a signal to the driving device 2 to control the start and stop of the driving device 2. Through this structure, the rotation angle of the display screen 1 is more accurate, and when the user adjusts the angle of the display screen 1, the driving device 2 can automatically stop after the display screen 1 rotates to the set angle, thereby providing convenience for the user.

[0084] Those skilled in the art can understand that the above preferred schemes can be freely combined and superimposed without conflict.

[0085] It should be understood that the above-described implementations are merely exemplary, and are not limiting, and that various obvious or equivalent modifications or substitutions for the above-described details can be made by those skilled in the art without departing from the spirit of the present application, and all such modifications or substitutions are intended to be included within the scope of the claims of the present application.

Claims

1. A rotating vehicle display screen, characterized by, The utility model relates to a kind of driving device for vehicle display screen, including: Display screen (1) for displaying vehicle information; Driving device (2) is provided with the output shaft for outputting rotary power, and located the back of the display screen (1); Transmission chain (3) is arranged between the output shaft and the display screen (1), for transmitting the rotary power, and reduce the rotating speed of the rotary power, increase the torque of the rotary power; Connecting assembly (4) is connected between the transmission chain (3) and the display screen (1), for transmitting the rotary power after reducing rotating speed and increasing torque to the display screen (1).

2. A rotating vehicle display screen according to claim 1, wherein, The transmission chain (3) is set as a worm wheel and a worm, the transmission chain (3) is first end with the worm, and the worm wheel is the end, the worm of the transmission chain (3) first end is fixedly connected along the length direction of the output shaft with the output shaft, the worm wheel of the transmission chain (3) end is rotated synchronously with the display screen (1) by the connecting assembly (4), the worm of the transmission chain (3) first end is engaged with the worm wheel of the transmission chain (3) end.

3. The rotating vehicle display screen of claim 1, wherein, The transmission chain (3) includes a plurality of worm wheels and a plurality of worms;The transmission chain is first end with one of the worms, and one of the worm wheels is the end;The worm of the transmission chain (3) first end is fixedly connected along the length direction of the output shaft with the output shaft, the worm wheel of the transmission chain (3) end is rotated synchronously with the display screen (1) by the connecting assembly (4);Worm and worm wheel between the transmission chain (3) first end and end are arranged in the way of each other, along the transmission chain (3) to the transmission direction of the rotary power, the worm is fixedly connected with the previous worm wheel, and is engaged with the next worm wheel.

4. A rotating vehicle display according to any one of claims 2 or 3, wherein, The connecting assembly (4) includes: Main shaft (41) is passed from the center of the worm wheel of the transmission chain (3) end along the direction perpendicular to the display screen (1) and is rotated synchronously therewith; Rotary support (42) is fixedly connected to the end of the main shaft (41) close to the end of the display screen (1), and the rotary support (42) is provided with a first clamping structure; Clamping support (43) is arranged between the rotary support (42) and the worm wheel of the transmission chain (3) end, and the clamping support (43) is fixedly connected with the worm wheel of the transmission chain (3) end, and the clamping support (43) is provided with a second clamping structure matched with the first clamping structure; Connecting support (44) is fixedly connected with the back of the display screen (1) on one side and fixedly connected with the rotary support (42) on the other side.

5. A rotating vehicle display screen according to claim 4, wherein, One of the first clamping structure and the second clamping structure is set as a protrusion (421), and the other is set as a groove (431) matched with the protrusion (421).

6. A rotating vehicle display screen according to claim 5, wherein, The protrusion (421) is set as an arc convex structure, the groove (431) is set as at least two arc concave structures, the two grooves (431) are separated by 90 degrees, and at least two grooves (431) correspond to the horizontal screen state of the display screen (1) and the vertical screen state of the display screen (1) respectively.

7. A rotating vehicle display screen according to claim 6, wherein, The main shaft (41) is sleeved with an elastic element (411) and a limiting ring (412) for blocking the movement of the elastic element (411), the limiting ring (412) is located on the side of the worm gear at the end of the transmission chain (3) away from the display screen (1), and the limiting ring (412) is fixedly connected with the main shaft (41), the elastic element (411) is located between the limiting ring (412) and the worm gear at the end of the transmission chain (3), and the elastic element (411) is always in a compressed state, so as to exert an elastic force on the clamping support (43) and increase the friction between the clamping support (43) and the rotating support (42).

8. A rotating vehicle display screen according to claim 7, wherein, The main shaft (41) is sleeved with a gasket (413) and a bearing (414), the two sides of the bearing (414) are fitted with the gasket (413) and the worm gear at the end of the transmission chain (3), and the two sides of the gasket (413) are fitted with the worm gear at the end of the transmission chain (3) and the elastic element (411).

9. A rotating vehicle display screen according to claim 8, wherein, It comprises: A protective cover (5) is provided outside the transmission chain (3) and the driving device (2); A cover plate (6) is located between the clamping support (43) and the protective cover (5), used for covering the inside of the protective cover (5), the cover plate (6) and the protective cover (5) are fixedly connected; A connecting cover (7) is provided outside the bearing (414), and the main shaft (41) passes through the connecting cover (7); A fixing frame (8) is fixedly connected to the side of the connecting cover (7) away from the protective cover (5); An exhibition stand (9) is provided with a mounting port (91) on the side away from the display screen (1), the protective cover (5), the cover plate (6), the connecting cover (7) and the fixing frame (8) are located in the exhibition stand (9), and the fixing frame (8) is fixedly connected with the exhibition stand (9); A rear cover (93) is located at the mounting port (91) and used for closing the mounting port (91), and the rear cover (93) is fixedly connected with the exhibition stand (9).

10. A rotating vehicle display screen according to claim 9, wherein, The main shaft (41) is provided with an electromagnetic encoder (10) at the end away from the rotating support (42), the electromagnetic encoder (10) is fixedly connected with the fixing frame (8), a magnet (416) is installed at the end of the main shaft (41) towards the electromagnetic encoder (10), and the magnet (416) has a gap with the electromagnetic encoder (10).

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