Vehicle-mounted display

Abstract

The utility model provides a vehicle-mounted display which comprises a base and a screen, and turnover mechanisms used for driving the screen to turn over are arranged on the two sides of the base respectively. The turnover mechanism comprises a connecting rod, a guide rail, a sliding block and a driving device, one end of the connecting rod is rotationally connected with the screen, and the other end of the connecting rod is rotationally connected with the base; the guide rail is fixedly arranged on the base, the sliding block is slidably connected to the guide rail, and the driving device drives the sliding block to move along the guide rail. And a first connecting shaft is arranged on the sliding block and is rotationally connected with the screen. According to the utility model, the connecting rod and the first connecting shaft on the sliding block are simultaneously connected with the screen, when the screen stays in a certain state, the screen is simultaneously supported by the connecting rod and the sliding block, and a stable supporting structure is formed among the base, the connecting rod, the sliding block and the screen, so that the stability of the screen is effectively improved, and the shaking amplitude of the screen is reduced; meanwhile, the reliability of the whole vehicle-mounted display is improved, and the service life of the whole vehicle-mounted display is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted electronic products, and particularly relates to a vehicle-mounted display. Background Art

[0002] The flip-type vehicle-mounted display is a common configuration on some commercial vehicles. It is usually installed on the top inside the vehicle and includes a base, a display screen, and a flip drive mechanism. The base is fixedly installed in the vehicle, and the flip drive mechanism is used to drive the display screen to flip to realize the unfolding or retraction of the display screen. When in use, the display screen can be driven by the flip drive mechanism to flip downward and unfold for the people inside the vehicle to watch. When not in use, the display screen can be driven by the flip drive mechanism to flip upward and hidden to save the space inside the vehicle.

[0003] Among them, the existing flip drive mechanism on the vehicle-mounted display is installed on both sides of the display screen. The flip drive mechanism includes a motor and a gear reducer. The output shaft of the motor is connected to the input shaft of the gear reducer, and the output shaft of the gear reducer is connected to the side of the display screen. By driving the output shaft of the gear reducer to rotate with the motor, the display screen is driven to flip. Since the display screen is only connected to the output shaft of the gear reducer, in the actual use process, there are the following deficiencies: 1. Stress concentration: Since the display screen only relies on the output shaft of the gear reducer to flip, the gravity and torque of the display screen itself will be concentrated on the output shaft of the gear reducer, resulting in excessive force on the output shaft of the gear reducer. After long-term use, problems such as deformation torque or even fracture of the output shaft are likely to occur. 2. Poor structural stability: Since the display screen only relies on the connection point of the output shaft of the gear reducer, the stability of the display screen in the unfolded state or the retracted state is poor. Especially during the driving process of the vehicle, vibrations or collisions may cause the display screen to shake significantly, affecting the viewing experience of the passengers inside the vehicle and also reducing the reliability and service life of the entire vehicle-mounted display. Summary of the Invention

[0004] The purpose of the utility model is to solve the deficiencies in the prior art and provide a vehicle-mounted display.

[0005] The purpose of the utility model is realized by the following technical solutions: A vehicle-mounted display includes a base and a screen. Flip mechanisms for driving the screen to flip are respectively arranged on both sides of the base. The flip mechanism includes a connecting rod, a guide rail, a slider, and a driving device. One end of the connecting rod is rotatably connected to the screen, and the other end of the connecting rod is rotatably connected to the base. The guide rail is fixedly arranged on the base, the slider is slidably connected to the guide rail, and the slider is driven to move along the guide rail by the driving device. A first connecting shaft is arranged on the slider, and the first connecting shaft is rotatably connected to the screen.

[0006] Preferably, the connection position of the connecting rod and the screen is located in the middle of the side surface of the screen, and the connection position of the first connecting shaft and the screen is located at one end of the side surface of the screen.

[0007] Preferably, the driving device includes a motor and a lead screw. The two ends of the lead screw are rotatably connected to the base, and the motor and one end of the lead screw are connected by a gear transmission mechanism; a threaded hole is provided on the slider, and the lead screw passes through the threaded hole on the slider, and the lead screw is in threaded cooperation with the slider.

[0008] Preferably, the gear transmission mechanism includes a fixing frame, a worm provided on the output shaft of the motor, and a second transmission gear provided at one end of the lead screw. The fixing frame is fixedly provided on the base, a rotating shaft is provided on the fixing frame, and a worm gear and a first transmission gear are simultaneously provided on the rotating shaft. The worm is meshed with the worm gear, and the first transmission gear is meshed with the second transmission gear.

[0009] Preferably, the motor is a servo motor.

[0010] Preferably, a second connecting shaft is provided at the end of the connecting rod away from the screen, and the second connecting shaft is rotatably connected to the base.

[0011] Preferably, an angle sensor corresponding to the second connecting shaft is provided on the base, and the angle sensor is used to measure the rotation angle of the second connecting shaft.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the connecting rod and the first connecting shaft on the slider are simultaneously connected to the screen. When the screen stays in a certain state, the screen is supported by the connecting rod and the slider at the same time, and a stable support structure is formed among the base, the connecting rod, the slider and the screen, effectively improving the stability of the screen, reducing the shaking amplitude of the screen, improving the viewing experience of the passengers, and at the same time improving the reliability and service life of the entire vehicle-mounted display.

[0014] 2. In the present utility model, the gravity and torque of the screen are distributed to the connecting rod and the slider, reducing the force on a single component and avoiding the problem of component damage caused by stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of one direction of the present utility model.

[0016] Figure 2 is a schematic structural diagram of another direction of the present utility model.

[0017] Figure 3 is a schematic structural diagram of one direction of the present utility model after removing the base.

[0018] Figure 4This is a schematic structural view of another direction of the present utility model after removing the base.

[0019] Figure 5 This is a schematic structural view of the driving device.

[0020] In the figure: 1. Base, 2. Screen, 3. Motor, 4. Connecting rod, 5. Angle sensor, 6. Slide block, 7. First connecting shaft, 8. Guide rail, 9. Lead screw, 10. Second connecting shaft, 11. Fixed bracket, 12. Worm, 13. Rotating shaft, 14. Worm gear, 15. First transmission gear, 16. Second transmission gear. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0022] As Figures 1 to 5 shown, a vehicle-mounted display includes a base 1 and a screen 2. Flipping mechanisms for driving the screen 2 to flip are respectively provided on both sides of the base 1; the flipping mechanism includes a connecting rod 4, a guide rail 8, a slide block 6, and a driving device. One end of the connecting rod 4 is rotatably connected to the screen 2, and the other end of the connecting rod 4 is rotatably connected to the base 1; the guide rail 8 is fixedly arranged on the base 1, the slide block 6 is slidably connected to the guide rail 8, and the slide block 6 is driven by the driving device to move along the guide rail 8; a first connecting shaft 7 is provided on the slide block 6, and the first connecting shaft 7 is rotatably connected to the screen 2.

[0023] In the present utility model, the slide block 6 is driven by the driving device to move, and the movement of the slide block 6 drives the screen 2 to flip. The connecting rod 4 and the first connecting shaft 7 on the slide block 6 are both connected to the screen 2. When the screen 2 stays in a certain state, the screen 2 is supported by the connecting rod 4 and the slide block 6 at the same time. A stable support structure is formed among the base 1, the connecting rod 4, the slide block 6, and the screen 2, effectively improving the stability of the screen 2, reducing the shaking amplitude of the screen 2, improving the viewing experience of the passengers, and at the same time improving the reliability and service life of the entire vehicle-mounted display. Moreover, the gravity and torque of the screen 2 are distributed to the connecting rod 4 and the slide block 6, reducing the force on a single component and avoiding the problem of component damage caused by stress concentration.

[0024] Among them, the connection position of the connecting rod 4 and the screen 2 is located in the middle of the side surface of the screen 2, and the connection position of the first connecting shaft 7 and the screen 2 is located at one end of the side surface of the screen 2.

[0025] Specifically, the driving device includes a motor 3 and a lead screw 9. Both ends of the lead screw 9 are rotatably connected to the base 1, and the motor 3 is connected to one end of the lead screw 9 through a gear transmission mechanism. A threaded hole is provided on the slider 6, and the lead screw 9 passes through the threaded hole on the slider 6, and the lead screw 9 is in threaded cooperation with the slider 6. Among them, the lead screw 9 is arranged parallel to the guide rail 8. By driving the lead screw 9 to rotate with the motor 3, the lead screw 9 drives the slider 6 to move along the direction of the guide rail 8 when rotating. When the screen 2 is in the retracted state, the screen 2 is attached to the base 1, and the slider 6 is located at one end of the lead screw 9. During the process of the slider 6 moving along the lead screw 9, it forces the connecting rod 4 to rotate, thereby causing the screen 2 to flip.

[0026] The gear transmission mechanism includes a fixed frame 11, a worm 12 arranged on the output shaft of the motor 3, and a second transmission gear 16 arranged at one end of the lead screw 9. The fixed frame 11 is fixedly arranged on the base 1. A rotating shaft 13 is provided on the fixed frame 11, and a worm gear 14 and a first transmission gear 15 are simultaneously arranged on the rotating shaft 13. The worm 12 meshes with the worm gear 14, and the first transmission gear 15 meshes with the second transmission gear 16. The motor 3 drives the worm 12 to rotate. When the worm 12 rotates, it drives the worm gear 14 to rotate. When the worm gear 14 rotates, it drives the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, it drives the first transmission gear 15 to rotate. The first transmission gear 15 drives the second transmission gear 16 to rotate. When the second transmission gear 16 rotates, it drives the lead screw 9 to rotate.

[0027] In this embodiment, the motor 3 is a servo motor 3. The servo motor 3 has a high rotation accuracy and can accurately drive the flipping of the screen 2.

[0028] A second connecting shaft 10 is provided at the end of the connecting rod 4 far from the screen 2, and the second connecting shaft 10 is rotatably connected to the base 1.

[0029] Furthermore, an angle sensor 5 corresponding to the second connecting shaft 10 is provided on the base 1. The angle sensor 5 is used to measure the rotation angle of the second connecting shaft 10. Among them, the angle sensor 5 is located at one end of the second connecting shaft 10. By detecting the angle state information of the second connecting shaft 10 through the angle sensor 5, the flipping angle state of the current display screen can be known.

[0030] In this embodiment, the angle sensor 5 is a magnetic angle sensor.

[0031] The present utility model is not limited to the above best embodiment. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution identical or similar to the present application, it falls within the protection scope of the present utility model.

Claims

1. A vehicle-mounted display, characterized in that, It includes a base and a screen. Flipping mechanisms for driving the screen to flip are respectively arranged on both sides of the base; the flipping mechanism includes a connecting rod, a guide rail, a slider, and a driving device. One end of the connecting rod is rotatably connected to the screen, and the other end of the connecting rod is rotatably connected to the base; the guide rail is fixedly arranged on the base, the slider is slidably connected to the guide rail, and the slider is driven to move along the guide rail by the driving device; a first connecting shaft is arranged on the slider, and the first connecting shaft is rotatably connected to the screen.

2. The on-vehicle display according to claim 1, characterized in that, The connection position of the connecting rod and the screen is located in the middle of the side surface of the screen, and the connection position of the first connecting shaft and the screen is located at one end of the side surface of the screen.

3. An in-vehicle display according to claim 1, characterized in that, The driving device includes a motor and a lead screw. Both ends of the lead screw are rotatably connected to the base, and the motor and one end of the lead screw are connected by a gear transmission mechanism; a threaded hole is arranged on the slider, and the lead screw passes through the threaded hole on the slider, and the lead screw is in threaded cooperation with the slider.

4. The on-vehicle display according to claim 1, characterized in that, The gear transmission mechanism includes a fixed frame, a worm arranged on the output shaft of the motor, and a second transmission gear arranged at one end of the lead screw. The fixed frame is fixedly arranged on the base, a rotating shaft is arranged on the fixed frame, and a worm gear and a first transmission gear are arranged on the rotating shaft at the same time. The worm is meshed with the worm gear, and the first transmission gear is meshed with the second transmission gear.

5. An in-vehicle display according to claim 4, characterized in that, The motor is a servo motor.

6. The on-vehicle display according to claim 1, wherein A second connecting shaft is arranged at the end of the connecting rod far from the screen, and the second connecting shaft is rotatably connected to the base.

7. An in-vehicle display according to claim 6, characterized in that, An angle sensor corresponding to the second connecting shaft is arranged on the base, and the angle sensor is used for measuring the rotation angle of the second connecting shaft.

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