Rotating mechanism for vehicle-mounted ceiling screen

Abstract

The utility model provides a rotating mechanism for a vehicle-mounted ceiling screen, which comprises a frame body and two driving components respectively positioned on two sides of the frame body, each driving component comprises a driving shaft, an inductor and a motor, one end of each driving shaft is provided with a connecting plate connected with the ceiling screen, and the other end of each driving shaft is provided with a rotating shaft. The other end of the driving shaft extends to the sensor, and the motor is in transmission fit with the driving shaft. Aiming at the defects in the prior art, the utility model provides the rotating mechanism for the vehicle-mounted ceiling screen, which can keep the ceiling screen stable and reduce the angle deviation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts especially a rotating mechanism for vehicle-mounted ceiling screen. BACKGROUND

[0002] The vehicle-mounted ceiling screen is also called roof screen or vehicle-mounted hanging screen, and is a kind of multimedia display device installed on the top of a vehicle. With the acceleration of the intelligent and networked trend of vehicles, the demand for vehicle-mounted entertainment ceiling screens also increases. When the vehicle-mounted ceiling screen is used, the ceiling screen needs to be switched from the folded state to the unfolded state through rotation. Therefore, the synchronization and stability of the rotation angle of the left and right sides of the ceiling screen are crucial to the user. In the traditional vehicle-mounted entertainment ceiling screen, a motor is used as a transmission mechanism on one side, and a potentiometer or a magnetic encoder is used as a driven mechanism on the other side to detect the screen rotation angle. The damping forces of the two sides are quite different. During the driving of the vehicle, the angle deviation of the left and right sides of the screen may be large, which affects the visual experience of the passengers and the use experience. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a rotating mechanism for a vehicle-mounted ceiling screen, which can keep the ceiling screen stable and reduce the angle deviation.

[0004] To achieve the above-mentioned purpose, the utility model provides a rotating mechanism for a vehicle-mounted ceiling screen, which comprises a frame body and two driving assemblies respectively arranged on the left and right sides of the frame body. The driving assembly comprises a driving shaft, a sensor and a motor. One end of the driving shaft is provided with a connecting plate connected to the ceiling screen, and the other end of the driving shaft extends to the sensor. The motor is in transmission cooperation with the driving shaft.

[0005] The above-mentioned technical scheme has the following advantages. The same driving assembly is arranged on the left and right sides of the frame body. The driving shaft, the sensor and the motor are arranged in the driving assembly. The connecting plate on the driving shaft is connected to the ceiling screen. The motor drives the driving shaft to rotate. The sensor is arranged on both driving shafts to detect the screen rotation angle. After obtaining the factual data, the PID position loop controller can be used to ensure the stability and synchronization of the rotation angle of the left and right sides of the ceiling screen and ensure the use experience of the passengers.

[0006] The utility model can be further provided as follows. The driving assembly comprises a gear set, a worm gear set and a transmission shaft. The motor is arranged on the radial side of the driving shaft. The worm gear set and the gear set are respectively in transmission connection with the output end of the motor and the driving shaft. The transmission shaft forms transmission connection between the worm gear set and the gear set.

[0007] Further, the gear set, worm gear set and transmission shaft are arranged in the driving assembly, the gear set and the worm gear set are respectively connected with the motor output end and the driving shaft, and the transmission shaft is arranged to connect the gear set and the worm gear set, so that the motor can be arranged at the radial side of the driving shaft, and the space occupied by the rotating mechanism is optimized.

[0008] The utility model discloses further can set up as: the frame body includes the mounting groove and the shell cover, driving assembly set up at the mounting groove, the shell cover can detachable connection at the mounting groove, and can form the covering of driving assembly.

[0009] Further, the mounting groove and the shell cover are arranged on the frame body, the driving assembly is arranged in the mounting groove, and the shell cover is detachably connected with the inner wall of the mounting groove to cover the driving assembly, so that the service life and stability of the product are ensured.

[0010] The utility model discloses further can set up as: the shell cover includes the side plate, the driving shaft extends to one side of the side plate, the other side of the side plate is provided with the recess with the communicating hole and the connecting column with the screw hole, and the main part of the inductor is arranged in the recess, and the connecting column is used for connecting the circuit board in the inductor.

[0011] Further, the side plate is arranged in the shell cover, the driving shaft extends to one side of the side plate, the recess with the communicating hole and the connecting column with the screw hole are arranged on the other side of the side plate, the main part of the inductor and the circuit board are arranged on the other side of the side plate, the side plate is used for separation, and the components in the driving assembly can not interfere with and hinder the main part of the inductor and the circuit board.

[0012] The utility model discloses further can set up as: the mounting groove is provided with an opening at the position corresponding to the transmission shaft, the worm gear set and the gear set, the shell cover includes detachable lower cover, and the lower cover covers the opening.

[0013] Further, the mounting groove is provided with an opening at the position corresponding to the transmission shaft, the worm gear set and the gear set, and the detachable lower cover is arranged in the shell cover to cover the opening, so that the lower cover can be conveniently removed for maintenance and replacement of the transmission components. ACCURACY OF DRAWINGS

[0014] Figure 1 It is the structural schematic drawing of the utility model embodiment;

[0015] Figure 2 It is the utility model embodiment Figure 1 The sectional view of A-A in the utility model embodiment;

[0016] Figure 3 It is the cooperation schematic drawing of the shell cover and the driving assembly in the utility model embodiment;

[0017] Figure 4 It is a structure schematic view of the driving assembly in the embodiment of the utility model;

[0018] Figure 5 It is a structure schematic view of the side plate in the embodiment of the utility model;

[0019] Among them: frame body 1;Mounting groove 11;Opening 111;Shell 12;Side plate 121;Groove 1211;Connecting column 1212;Lower cover 122;Driving assembly 2;Driving shaft 21;Connecting plate 211;Radial magnet 22;Motor 23;Gear set 24;Worm gear set 25;Transmission shaft 26;Hall sensor circuit board 27. Specific implementation

[0020] The embodiment of the utility model for the rotation mechanism of vehicle-mounted ceiling screen as Figures 1-5 As shown: including frame body 1, still including two driving assemblies 2 that are respectively located at both sides of frame body 1, the driving assembly 2 includes driving shaft 21, inductor and motor 23, the inductor can be magnetic encoder or potentiometer, the inductor in this embodiment is magnetic encoder, the inductor body is radial magnet 22, the circuit board is Hall sensor circuit board 27, is through radial magnet 22 Hall sensor circuit board cooperation to induct the rotation angle of driving shaft 21, the one end of driving shaft 21 is provided with the connecting plate 211 of connecting ceiling screen, the other end of driving shaft 21 extends to radial magnet 22, can pass through the rotation angle of inductor other end, the motor 23 is driven with driving shaft 21 transmission cooperation, through Hall sensor circuit board receives data, can utilize PID position loop controller to carry out automatic control subsequently, the PID position loop controller is a common feedback controller, is used for accurately controlling the position of physical quantity, "PID" represents proportional (Proportional), integral (Integral), differential (Derivative), this is the three important control actions in controller, position loop mainly is concerned with the position information of control object, namely, when two motors move, the angle of screen both sides is synchronous, ensures that the angle of screen left and right sides is consistent after motor stops.

[0021] The driving assembly 2 comprises a gear set 24, a worm gear set 25 and a transmission shaft 26, the motor 23 is arranged at a radial side of the driving shaft 21, the worm gear set 25 and the gear set 24 are respectively in transmission connection with the output end of the motor 23 and the driving shaft 21, and the transmission shaft 26 is in transmission connection between the worm gear set 25 and the gear set 24, in the embodiment, the worm gear set 25 has a worm gear, which is in cooperation with the output end of the motor 23 arranged in a worm shape, the transmission shaft is arranged in the inner hole of the worm gear, the gear set 24 has three gears, one of the gears is coaxially arranged with the driving shaft, the other two gears are respectively in mesh with the one gear and the transmission shaft, and the other two gears are coaxially and synchronously arranged.

[0022] The frame body 1 comprises a mounting groove 11 and a shell 12, the driving assembly 2 is arranged at the mounting groove 11, and the shell 12 is detachably connected at the mounting groove 11 and can cover the driving assembly 2.

[0023] The shell 12 comprises a side plate 121, the driving shaft 21 extends to one side of the side plate 121, the other side of the side plate 121 is provided with a recess 1211 with a communication hole and a connecting column 1212 with a screw hole, the main body of the inductor is arranged in the recess 1211, and the connecting column 1212 is used for connecting the Hall sensor circuit board 27.

[0024] The mounting groove 11 is provided with an opening 111 corresponding to the positions of the transmission shaft 26, the worm gear set 25 and the gear set 24, the shell 12 comprises a detachable lower cover 122, and the lower cover 122 covers the opening 111.

[0025] The above examples are only one of the preferred specific examples of the present application, and the usual changes and replacements made by those skilled in the art within the technical scheme of the present application are all included in the protection scope of the present application.

Claims

1. A rotating mechanism for a vehicle-mounted ceiling screen, comprising a frame body, characterized in that: The driving assembly includes a driving shaft, an inductor and a motor, one end of the driving shaft is provided with a connecting plate connected with the ceiling screen, the other end of the driving shaft extends to the inductor, and the motor is in transmission cooperation with the driving shaft.

2. The rotating mechanism for the vehicle-mounted ceiling screen according to claim 1, characterized in that: The driving assembly includes a gear set, a worm gear set and a transmission shaft, the motor is arranged at a radial side of the driving shaft, the worm gear set and the gear set are respectively in transmission connection with the motor output end and the driving shaft, and the worm gear set and the gear set are in transmission connection through the transmission shaft.

3. The rotating mechanism for a vehicle-mounted ceiling screen according to claim 1 or 2, characterized in that: The frame body includes a mounting groove and a shell, the driving assembly is arranged at the mounting groove, the shell is detachably connected at the mounting groove and can cover the driving assembly.

4. The rotating mechanism for the vehicle-mounted ceiling screen according to claim 3, characterized in that: The shell includes a side plate, the driving shaft extends to one side of the side plate, the other side of the side plate is provided with a groove with a communication hole and a connecting column with a screw hole, the main body of the inductor is arranged in the groove, and the connecting column is used for connecting the circuit board in the inductor.

5. The swivel mechanism for a vehicle-mounted ceiling screen according to claim 3, characterized by: The mounting groove is provided with an opening corresponding to the positions of the transmission shaft, the worm gear set and the gear set, the shell includes a detachable lower cover, and the lower cover covers the opening.

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