A screen multi-angle swing mechanism

Abstract

A screen multi-angle swing mechanism includes a mounting bracket, a screen bracket, a middle rotating shaft, and a driving unit. One end of the middle rotating shaft is connected to the screen bracket and the other end is rotatably connected to the mounting bracket. The driving unit is used to drive the rotation of the middle rotating shaft. The screen bracket is provided with a limiting portion, and the mounting bracket is provided with two positioning portions. The two positioning portions are respectively located on both sides of the limiting portion and are used to abut against the limiting portion. At least one positioning portion is provided with a detector, and the detector is used to detect the position and / or angle of the limiting portion. Through the arrangement of the limiting portion and the detector, on the one hand, the driving unit is used to realize the rotation of the screen bracket relative to the mounting bracket, so as to realize automatic angle adjustment. On the other hand, the detector monitors the position of the limiting portion to ensure that the rotation angle of the screen bracket meets the requirements. Through the arrangement of the two positioning portions, the limiting portion is restricted to move between the two positioning portions, avoiding excessive rotation of the screen bracket.

Description

Technical Field

[0001] The present invention relates to the technical field of display adjustment devices, and particularly relates to a screen multi-angle swing mechanism. Background Art

[0002] As a means of transportation, automobiles have brought great convenience to people's lives and work. With the improvement of people's requirements for the quality of life and consumption experience, automobiles with only basic driving and riding functions can hardly meet people's diverse needs. Automobiles with a sense of technology and intelligence are gradually favored by consumers. A prominent manifestation is that the driver's cab is equipped with a central control screen, and the driver and passengers can set functions such as music playback, atmosphere light selection, and map navigation by operating the central control screen to meet diverse needs.

[0003] Most of the existing automobile central control displays are mainly fixed in the middle of the instrument panel. There are also some models that, in order to take into account the operation comfort of the driver and the entertainment experience of the co-driver, set screens on both the driver's side and the co-driver's side or adopt multi-screen linkage, so as to have better human-computer interaction performance.

[0004] At present, the multi-screen linkage method is often used on the market to meet the screen viewing angle needs of the driver's side and the co-driver's side. However, this setting method has a high construction cost and a large constraint on the shape of the instrument panel. Once an ordinary fixed display is installed on the instrument panel, its position cannot be swung. Whether it is the operation and viewing angle of the driver's side or the co-driver's side, the control and comfort are not good. Especially for a driver with a small body type, since the central control display is set in the middle of the instrument, not only is the distance far, but also the viewing angle is not good, there are great safety hazards during navigation. Summary of the Invention

[0005] The purpose of the present invention is to provide a screen multi-angle swing mechanism that can realize multi-angle automatic adjustment to adapt to the viewing angle comfort and control safety of the driver's side and the co-driver's side.

[0006] To solve the above problems, the present invention provides a screen multi-angle swing mechanism, including a mounting bracket, a screen bracket, a middle rotating shaft, and a driving unit. One end of the middle rotating shaft is connected to the screen bracket and the other end is rotatably connected to the mounting bracket. The driving unit is used to drive the rotation of the middle rotating shaft. The screen bracket is provided with a limiting portion, and the mounting bracket is provided with two positioning portions. The two positioning portions are respectively located on both sides of the limiting portion and are used to abut against the limiting portion. At least one positioning portion is provided with a detector, and the detector is arranged towards the limiting portion and is used to detect the position and / or angle of the limiting portion.

[0007] The above solution sets a limiting part on the screen bracket and a detector on the mounting bracket. On the one hand, the driving unit drives the middle rotating shaft to rotate, so as to realize the rotation of the screen bracket relative to the mounting bracket and achieve automatic angle adjustment. On the other hand, the detector monitors the position of the limiting part, and adjusts the driving unit according to the detection signal feedback of the detector to realize precise control of the rotation angle of the middle rotating shaft, ensuring that the rotation angle of the screen bracket meets the requirements. In addition, through the setting of two positioning parts, the limiting part is restricted to move between the two positioning parts, avoiding the problem of excessive rotation of the screen bracket and further improving the user experience. Compared with the prior art, the above solution realizes precise control of the left and right swing angles of the screen bracket through the setting of the driving unit and the detector, with stable operation and compact structure, and has good practicability.

[0008] Preferably, the driving unit includes a motor module and a reduction module. The output end of the motor module is connected to the input end of the reduction module, and the output end of the reduction module is connected to the middle rotating shaft. The mounting bracket includes a base frame, a motor cover and a reduction cover both connected to the base frame. The motor module is installed in the motor cover, and the reduction module is installed in the reduction cover, so as to realize a stable driving effect on the middle rotating shaft through the driving unit.

[0009] Preferably, the reduction module includes a transfer shaft rotatably connected to the reduction cover, a first-stage worm gear provided on one side of the transfer shaft, and a second-stage worm provided on the other side of the transfer shaft. The middle rotating shaft is provided with a second-stage worm gear meshing with the second-stage worm, and the output end of the motor module is provided with a first-stage worm meshing with the first-stage worm gear, so that the reduction module can form a large reduction ratio, with a compact structure and small occupied space. In addition, by setting the helix angles of the first-stage worm and the second-stage worm to be less than the equivalent friction angle, self-locking can be formed between the first-stage worm gear and the first-stage worm, and between the second-stage worm gear and the second-stage worm, realizing hovering at any angle.

[0010] Preferably, both the middle rotating shaft and the transfer shaft are made of metal, and rolling mesh pattern areas are provided on the shaft sides of the middle rotating shaft and the transfer shaft. The first-stage worm gear is injection-molded into the rolling mesh pattern area of the transfer shaft, and the second-stage worm gear is injection-molded into the rolling mesh pattern area of the middle rotating shaft, so that the connection of the first-stage worm gear to the transfer shaft and the connection of the second-stage worm gear to the middle rotating shaft are more stable, and can withstand greater axial force or radial torque.

[0011] Preferably, the motor module includes a driving motor. The motor cover includes a base shell and a cover shell. A receiving cavity is provided in the base shell, and the driving motor is located in the receiving cavity. The output end of the motor module is the motor shaft of the driving motor, and the cover shell is detachably connected to the base shell to close the receiving cavity, so that the structure is compact and the assembly is convenient.

[0012] Preferably, a circuit board is further provided in the accommodation cavity. The circuit board is electrically connected to the drive motor and the detector. The cover shell is provided with a socket communicating with the circuit board, so that the circuit board is integrated in the motor module, facilitating subsequent assembly and use.

[0013] Preferably, a plurality of protruding locking portions are provided on the side wall of the base shell, and a buckle for clamping to the locking portion is provided on the side of the cover shell facing the base shell, so that the disassembly and assembly between the housing and the cover shell are simple and convenient.

[0014] Preferably, one end of the middle rotating shaft close to the screen bracket is a square shaft end, and the screen bracket is provided with a square groove for inserting the square shaft end, so as to realize a stable connection between the middle rotating shaft and the screen bracket.

[0015] Preferably, the limiting portion is a limiting plate arranged along the radial direction of the middle rotating shaft, and the two positioning portions are equidistantly distributed around the axis of the middle rotating shaft, so that the screen bracket rotates the same angle to the left or right, meeting most usage scenarios.

[0016] Preferably, the detector is a contact switch, and the detector is arranged on the positioning portion, so that the triggering of the detector is more reliable and stable. Description of the Drawings

[0017] Figure 1 It is an overall axonometric schematic diagram of a screen multi-angle swing mechanism;

[0018] Figure 2 It is an exploded schematic diagram of a screen multi-angle swing mechanism;

[0019] Figure 3 It is an exploded schematic diagram of a speed reduction cover, a middle rotating shaft and a speed reduction unit of a screen multi-angle swing mechanism;

[0020] Figure 4 It is an exploded schematic diagram of a motor cover and a motor module of a screen multi-angle swing mechanism;

[0021] Figure 5 It is a schematic diagram of a speed reduction cover and a positioning portion of a screen multi-angle swing mechanism;

[0022] Figure 6 It is a bottom view schematic diagram of a screen bracket of a screen multi-angle swing mechanism.

[0023] Description of the Reference Numerals

[0024] 1. Mounting bracket; 110. Positioning part; 111. Detector; 120. Base frame; 130. Motor cover; 131. Base shell; 132. Cover shell; 133. Locking part; 134. Socket; 135. Buckle; 140. Reducing cover; 141. Rolling bearing; 2. Screen bracket; 210. Limiting part; 220. Square groove; 3. Middle rotating shaft; 310. Second-stage worm gear; 4. Motor module; 410. Driving motor; 411. First-stage worm; 420. Circuit board; 5. Reducing module; 510. Adapter shaft; 511. First-stage worm gear; 512. Second-stage worm. Detailed implementation manners

[0025] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description will be given to the specific embodiments of the present invention with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. In addition, it should be noted that all the directional indications (such as up, down, left, right, front, back, inside, outside) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] Please refer to Figures 1 - 6 , a screen multi-angle swing mechanism provided by an embodiment of the present invention includes a mounting bracket 1, a screen bracket 2, a middle rotating shaft 3 and a driving unit. One end of the middle rotating shaft 3 is connected to the screen bracket 2 and the other end is rotatably connected to the mounting bracket 1. The driving unit is used to drive the rotation of the middle rotating shaft 3. The screen bracket 2 is provided with a limiting part 210. The mounting bracket 1 is provided with two positioning parts 110. The two positioning parts 110 are respectively located on both sides of the limiting part 210 and are used to abut against the limiting part 210. At least one positioning part 110 is provided with a detector 111. The detector 111 is arranged towards the limiting part 210 and is used to detect the position and / or angle of the limiting part 210.

[0027] In the above solution, a limiting part 210 is provided on the screen bracket 2 and a detector 111 is provided on the mounting bracket 1. On the one hand, the driving unit drives the middle rotating shaft 3 to rotate, so as to realize the rotation of the screen bracket 2 relative to the mounting bracket 1 and achieve automatic angle adjustment. On the other hand, the detector 111 monitors the position of the limiting part 210, and adjusts the driving unit according to the detection signal feedback of the detector 111, so as to realize the precise control of the rotation angle of the middle rotating shaft 3 and ensure that the rotation angle of the screen bracket 2 meets the requirements. In addition, through the setting of the two positioning parts 110, the limiting part 210 is restricted to move between the two positioning parts 110, avoiding the problem of excessive rotation of the screen bracket 2 and further improving the user experience. Compared with the prior art, the above solution realizes the precise control of the left and right swing angles of the screen bracket through the setting of the driving unit and the detector, has stable operation and a compact structure, and has good practicability.

[0028] In this embodiment, the driving unit includes a motor module 4 and a reduction module 5. The output end of the motor module 4 is connected to the input end of the reduction module 5, and the output end of the reduction module 5 is connected to the middle rotating shaft 3. The mounting bracket 1 includes a base frame 120, a motor cover 130 and a reduction cover 140 both connected to the base frame 120. The motor module 4 is installed in the motor cover 130, and the reduction module 5 is installed in the reduction cover 140, so as to realize the stable driving effect of the driving unit on the middle rotating shaft 3. In this embodiment, the base frame 120 is provided with a groove structure for accommodating the motor cover 130 and the reduction cover 140. The motor cover 130 and the reduction cover 140 are both installed in the groove structure of the base frame 120 and are detachably connected by bolts, so as to facilitate assembly or later maintenance. It should be understood that the motor cover 130 and the reduction cover 140 may also be integrally formed with respect to the base frame 120, and the present design does not limit this. In addition, considering the convenience of assembly, the middle rotating shaft 3 can be arranged inside the reduction cover 140. Specifically, Figure 3 taking [a certain reference], the inside of the rear side of the reduction cover 140 is provided for installing the reduction module 5. The front side of the reduction cover 140 is provided with a tubular structure arranged vertically. Rolling bearings 141 are provided on both the upper and lower parts of the tubular structure. The middle rotating shaft 3 is fitted to the inner ring side of the rolling bearings 141, so as to realize the stable rotation of the middle rotating shaft 3 relative to the mounting bracket 1.

[0029] The speed reduction module 5 includes a transfer shaft 510 rotatably connected to the speed reduction cover 140, a first-stage worm gear 511 sleeved on one side of the transfer shaft 510, and a second-stage worm 512 arranged on the other side of the transfer shaft 510. The first-stage worm gear 511 and the second-stage worm 512 are both coaxially arranged relative to the transfer shaft 510. The upper part of the middle rotating shaft 3 is used to be cooperatively connected to the screen bracket 2. A second-stage worm gear 310 meshing with the second-stage worm 512 is sleeved on the lower part of the middle rotating shaft 3. The output end of the motor module 4 is provided with a first-stage worm 411 meshing with the first-stage worm gear 511. The power output by the motor module 4 is transmitted to the middle rotating shaft 3 through the first-stage worm 411, the first-stage worm gear 511, the transfer shaft 510, the second-stage worm 512, and the second-stage worm gear 310, so that the speed reduction module 5 can form a larger speed reduction ratio, and has a compact structure and small occupied space. In addition, by setting the helix angles of the first-stage worm 411 and the second-stage worm 512 to be less than the equivalent friction angle, self-locking can be formed between the first-stage worm gear 511 and the first-stage worm, and between the second-stage worm gear 310 and the second-stage worm 512, realizing hovering at any angle.

[0030] In this embodiment, one end of the middle rotating shaft 3 close to the screen bracket 2, that is, the upper part of the middle rotating shaft 3, is a square shaft end. The screen bracket 2 is provided with a square groove 220 for the square shaft end to be inserted, so as to realize the circumferential fixation between the middle rotating shaft 3 and the screen bracket 2, ensuring that the screen bracket 2 can rotate together when the middle rotating shaft 3 rotates, with simple assembly and stable operation. Of course, in other embodiments, a shaft key can also be arranged on the upper part of the middle rotating shaft 3 to realize the driving effect on the screen bracket 2.

[0031] As an optimization of the above embodiment, both the middle rotating shaft 3 and the transfer shaft 510 are made of metal. Rolling mesh regions (not shown in the figure) are provided on the shaft sides of the middle rotating shaft 3 and the transfer shaft 510. The first-stage worm gear 511 is injection-molded onto the rolling mesh region of the transfer shaft 510, and the second-stage worm gear 310 is injection-molded onto the rolling mesh region of the middle rotating shaft 3. The rolling mesh region has a surface with concave and convex mesh patterns, so that the connection between the first-stage worm gear 511 and the transfer shaft 510, and between the second-stage worm gear 310 and the middle rotating shaft 3 can be more stable, and can withstand greater axial force or radial torque.

[0032] The motor module 4 includes a driving motor 410 and a circuit board 420. The motor cover 130 includes a base shell 131 and a cover shell 132. An accommodation cavity is provided in the base shell 131. The driving motor 410 and the circuit board 420 are both located in the accommodation cavity. The output end of the motor module 4 is the motor shaft of the driving motor 410. The cover shell 132 is detachably connected to the base shell 131 to close the accommodation cavity, so that the structure is compact and the assembly is convenient. The circuit board 420 is electrically connected to the driving motor 410 and the detector 111. The cover shell 132 is provided with a socket 134 communicating with the circuit board 420, so that the circuit board 420 is integrated in the motor module 4, which is convenient for subsequent assembly and use.

[0033] In this embodiment, the detachable connection of the cover shell 132 relative to the base shell 131 means that: several protruding locking parts 133 are provided on the side wall of the base shell 131, and a buckle 135 that is snapped onto the locking part 133 is provided on the side of the cover shell 132 facing the base shell 131, so that the disassembly and assembly between the casing and the cover shell 132 are simple and convenient. Of course, in other embodiments, the cover shell 132 and the base shell 131 can also be detachably connected by bolts or other forms, and this design does not limit this.

[0034] In this embodiment, the limiting part 210 is a limiting plate arranged along the radial direction of the central rotating shaft 3, and the two positioning parts 110 are equidistantly distributed on the upper end surface of the speed reducer cover 140 of the mounting bracket 1 with the axis of the central rotating shaft 3 as the center, so that the screen bracket 2 rotates the same angle to the left or right. The distance between the two positioning parts 110 can be set as required. For example, it can be set that when the limiting part 210 abuts against the positioning part 110, the left and right rotation angles of the screen bracket 2 are both ±15°, so as to meet most usage scenarios; or it can be set that when the limiting part 210 abuts against the positioning part 110, the left and right rotation angles of the screen bracket 2 are both ±30°, so as to have a larger adjustment range.

[0035] In this embodiment, the detector 111 is a contact switch, and the contact of the detector 111 faces the limiting part 210, so that the triggering of the detector 111 is more reliable and stable. Of course, in other embodiments, the detector 111 can also be a photoelectric switch or a magnetic proximity switch, and this design does not limit this.

[0036] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. For those skilled in the art, various changes and modifications can be made without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the invention.

Claims

1. A screen multi-angle swing mechanism, characterized in that, it includes a mounting bracket (1), a screen bracket (2), a middle rotating shaft (3) and a driving unit. One end of the middle rotating shaft (3) is connected to the screen bracket (2), and the other end is rotatably connected to the mounting bracket (1). The driving unit is used to drive the rotation of the middle rotating shaft (3). The screen bracket (2) is provided with a limiting part (210), and the mounting bracket (1) is provided with two positioning parts (110). The two positioning parts (110) are respectively located on both sides of the limiting part (210) and are used to abut against the limiting part (210). At least one positioning part (110) is provided with a detector (111). The detector (111) is arranged facing the limiting part (210) and is used to detect the position and / or angle of the limiting part (210); The driving unit includes a motor module (4) and a reduction module (5). The output end of the motor module (4) is connected to the input end of the reduction module (5), and the output end of the reduction module (5) is connected to the middle rotating shaft (3). The mounting bracket (1) includes a base frame (120), a motor cover (130) and a reduction cover (140) both connected to the base frame (120). The motor module (4) is installed in the motor cover (130), and the reduction module (5) is installed in the reduction cover (140); The motor module (4) includes a driving motor (410). The motor cover (130) includes a base shell (131) and a cover shell (132). A receiving cavity is provided in the base shell (131). The driving motor (410) is located in the receiving cavity. The output end of the motor module (4) is the motor shaft of the driving motor (410). The cover shell (132) is detachably connected to the base shell (131) to close the receiving cavity.

2. The screen multi-angle swing mechanism according to claim 1, characterized in that, the reduction module (5) includes a transfer shaft (510) rotatably connected to the reduction cover (140), a first-stage worm gear (511) provided on one side of the transfer shaft (510), and a second-stage worm (512) provided on the other side of the transfer shaft (510). The middle rotating shaft (3) is provided with a second-stage worm gear (310) meshing with the second-stage worm (512), and the output end of the motor module (4) is provided with a first-stage worm (411) meshing with the first-stage worm gear (511).

3. The screen multi-angle swing mechanism according to claim 2, characterized in that, both the middle rotating shaft (3) and the transfer shaft (510) are made of metal. The shaft sides of the middle rotating shaft (3) and the transfer shaft (510) are both provided with rolling mesh pattern areas. The first-stage worm gear (511) is injection molded into the rolling mesh pattern area of the transfer shaft (510), and the second-stage worm gear (310) is injection molded into the rolling mesh pattern area of the middle rotating shaft (3).

4. The screen multi-angle swing mechanism according to claim 1, characterized in that, A circuit board (420) is further disposed in the accommodating cavity of the base housing (131). The circuit board (420) is electrically connected to the drive motor (410) and the detector (111). The cover housing (132) is provided with a socket (134) communicating with the circuit board (420).

5. A screen multi-angle swing mechanism according to claim 1, characterized in that a plurality of protruding locking portions (133) are provided on the side wall of the base housing (131), and a buckle (135) that is snapped onto the locking portion (133) is provided on one side of the cover housing (132) facing the base housing (131).

6. A screen multi-angle swing mechanism according to claim 1, characterized in that one end of the middle rotating shaft (3) close to the screen bracket (2) is a square shaft end, and the screen bracket (2) is provided with a square groove (220) for inserting the square shaft end.

7. A screen multi-angle swing mechanism according to claim 1, characterized in that the limiting portion (210) is a limiting plate arranged along the radial direction of the middle rotating shaft (3), and the two positioning portions (110) are equidistantly distributed around the axis of the middle rotating shaft (3).

8. A screen multi-angle swing mechanism according to claim 1 or 7, characterized in that the detector (111) is a contact switch.

Images