Screen support and vehicle-mounted screen

Abstract

The utility model discloses a screen support and a vehicle-mounted screen, relates to the technical field of vehicle-mounted screen supports, and is used for solving the problem that an existing vehicle-mounted screen cannot be adjusted electrically and manually at the same time. The screen support comprises a first driving mechanism, a second driving mechanism and a third driving mechanism. And during electric driving adjustment, each driving mechanism transmits the torque output by the driving motor through the respective adjusting mechanism, and transmits the torque to the screen to enable the screen to rotate. During manual adjustment, the screen is subjected to acting force, the acting force is transmitted to the part, capable of rotating with the output shaft of the driving motor as the axis, of each adjusting mechanism through the screen, then rotation occurs, and the purpose of manually adjusting the screen is achieved. The first output shaft, the second output shaft and the third output shaft are perpendicular to one another in pairs.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle screen support technical field especially relates to a screen support and vehicle screen. BACKGROUND

[0002] With the continuous improvement of the intelligent degree of automobile, the function of vehicle audio-video system is also increasing, the vehicle screen not only can provide audio-video entertainment, still integrated the control function of many components in the car, for example, the control of window opening and closing, air conditioning adjustment etc.

[0003] Some screen supports in the prior art can adjust the pitch angle of the screen by the plug-in cooperation of the plug rod and different round holes on the disc, but the adjustment process needs to be completed manually by personnel, and the adjustable angle of the screen is subject to the arrangement of the round holes on the disc. Some screen supports realize the adjustment of the pitch angle of the screen through a connecting rod mechanism and a gear and rack mechanism, and a rotating mechanism is arranged on the back of the screen, so that the screen can rotate around the normal central axis of the screen surface. The two kinds of screen angle adjustment mechanisms are driven by motors, and can realize the adjustment of any angle within the range of the mechanism stroke, but the screen adjustment mechanism cannot be manually adjusted by personnel.

[0004] Therefore, it is necessary to design a multi-degree-of-freedom vehicle screen support with electric driving adjustment mode and manual adjustment mode to meet the visual field demand of users in different postures. UTILITY MODEL CONTENT

[0005] The embodiment of the utility model provides a screen support and vehicle screen for solving the problem that the existing vehicle screen cannot consider electric driving adjustment and manual adjustment.

[0006] To achieve the above purpose, the embodiment of the utility model adopts the following technical scheme:

[0007] In a first aspect, the embodiments of the present application provide a screen support, which comprises a first driving mechanism, a second driving mechanism and a third driving mechanism. The first driving mechanism comprises a first driving motor and a first adjusting mechanism, a part of the first adjusting mechanism is connected with a first output shaft of the first driving motor, and another part of the first adjusting mechanism is used to be connected with a screen, and the another part of the first adjusting mechanism can rotate relative to the part of the first adjusting mechanism with the first output shaft as an axis. The second driving mechanism comprises a second driving motor and a second adjusting mechanism, a part of the second adjusting mechanism is connected with a second output shaft of the second driving motor, and another part of the second adjusting mechanism is connected with the first driving mechanism, and the another part of the second adjusting mechanism can rotate relative to the part of the second adjusting mechanism with the second output shaft as an axis. The third driving mechanism comprises a third driving motor and a third adjusting mechanism, a part of the third adjusting mechanism is connected with a third output shaft of the third driving motor, and another part of the third adjusting mechanism is connected with the second driving mechanism, and the another part of the third adjusting mechanism can rotate relative to the part of the third adjusting mechanism with the third output shaft as an axis. The first output shaft, the second output shaft and the third output shaft are perpendicular to each other.

[0008] In this way, a part of the first driving mechanism is used to be connected with the screen, and another part of the first driving mechanism is used to be connected with other driving mechanisms, for example, the second driving mechanism or the third driving mechanism. When the screen is adjusted by the motor, the torques output by the driving mechanisms can be transmitted to the screen, so that the screen rotates along the axial directions of different output shafts under the driving of the driving mechanisms. Or when the screen is adjusted manually, the forces acting on the screen can be transmitted to the adjusting mechanisms of the driving mechanisms, so that the another part of each adjusting mechanism can rotate relative to the part of the adjusting mechanism with the output shaft as an axis, so as to achieve the purpose of manually adjusting the screen.

[0009] In some embodiments, the screen support further comprises a connecting shaft, one end of the connecting shaft being used to connect with the screen. The first adjusting mechanism comprises a first connecting plate and a first friction pair. The first connecting plate has a first end and a second end perpendicular to each other, the first end is provided with a first through hole, a part of the other end of the connecting shaft and the first output shaft are inserted into the first through hole. The first friction pair comprises a first end cover, a first friction pad, a first external thread nut and a first shaft sleeve. The first end cover is arranged in the first through hole and connected with the other end of the connecting shaft. The first friction pad is arranged between the first connecting plate and the first end cover. The first external thread nut is arranged in the first through hole and coaxially arranged with the first end cover and threadedly connected with the first end cover. The first shaft sleeve is arranged between the first external thread nut and the first end cover, the first output shaft passes through the first end cover and is clamped with the first shaft sleeve. The second adjusting mechanism comprises a second connecting plate and a second friction pair. The second connecting plate has a third end and a fourth end perpendicular to each other, the third end is provided with a second through hole, a part of the second end is inserted into the second through hole, and a second output shaft is inserted into the second through hole. The second friction pair comprises a second end cover, a second friction pad, a second external thread nut and a second shaft sleeve. The second end cover is arranged in the second through hole and connected with the second end. The second friction pad is arranged between the second connecting plate and the second end cover. The second external thread nut is arranged in the second through hole and coaxially arranged with the second end cover and threadedly connected with the second end cover. The second shaft sleeve is arranged between the second external thread nut and the second end cover, the second output shaft passes through the second end cover and is clamped with the second shaft sleeve. The third adjusting mechanism comprises a third connecting plate and a third friction pair. The third connecting plate is provided with a third through hole, a part of the fourth end is inserted into the third through hole, and a third output shaft is inserted into the third through hole. The third friction pair comprises a third end cover, a third friction pad, a third external thread nut and a third shaft sleeve. The third end cover is arranged in the third through hole and connected with the fourth end. The third friction pad is arranged between the third connecting plate and the third end cover. The third external thread nut is arranged in the third through hole and coaxially arranged with the third end cover and threadedly connected with the third end cover. The third shaft sleeve is arranged between the third external thread nut and the third end cover, the third output shaft passes through the third end cover and is clamped with the third shaft sleeve.

[0010] In some embodiments, the peak output torque of the first driving motor is M m1 , the static friction torque between the first end cover and the first shaft sleeve is a first inner static friction torque M in-J1 , the static friction torque between the first external end cover and the first friction pad is a first outer static friction torque M out-J1 , M m1 , M in-J1 , M iut-J1 satisfy: M m1 >M out-J1 , and M in-J1 >M out-J1The peak output torque of the second driving motor is M m2 The static friction torque between the second end cover and the second shaft sleeve is a second inner static friction torque M in-J2 The static friction torque between the second end cover and the second friction pad is a second outer static friction torque M out-J2 M m2 , M in-J2 , M out-J2 satisfy: M m2 >M out-J2 , and M in-J2 >M out-J2 The peak output torque of the third driving motor is M m3 The static friction torque between the third end cover and the third shaft sleeve is a third inner static friction torque M in-J3 The static friction torque between the third end cover and the third friction pad is a third outer static friction torque M out-J3 M m3 , M in-J3 , M out-J3 satisfy: M m3 >M out-J3 , and M in-J3 >M out-J3 .

[0011] In some embodiments, the first driving motor self-locking torque is M kock1 M lock1 satisfy:

[0012] M lock1 >M in-J1 ; the second driving motor self-locking torque is M lock2 M lock2 satisfy:

[0013] M lock2 >M in-J2 ; the third driving motor self-locking torque is M lock3 M lock3 satisfy:

[0014] M lock3 >M in-J3 .

[0015] In some embodiments, the first connecting plate is provided with a first abutting portion along the inner wall of the first through hole, and the first friction pad is arranged between the first end cover and the first abutting portion. The second connecting plate is provided with a second abutting portion along the inner wall of the second through hole, and the second friction pad is arranged between the second end cover and the second abutting portion. The third connecting plate is provided with a third abutting portion along the inner wall of the third through hole, and the third friction pad is arranged between the third end cover and the third abutting portion.

[0016] In some embodiments, the first end cover comprises a first bottom plate and a first side plate, wherein the first bottom plate is provided with a first avoiding hole, the first avoiding hole is communicated with the first through hole, the first side plate is annular and coaxially arranged with the first through hole, the inner wall of the first side plate is provided with threads, and the first external thread nut is threadedly connected with the first side plate. The second end cover comprises a second bottom plate and a second side plate, wherein the second bottom plate is provided with a second avoiding hole, the second avoiding hole is communicated with the second through hole, the second side plate is annular and coaxially arranged with the second through hole, the inner wall of the second side plate is provided with threads, and the second external thread nut is threadedly connected with the second side plate. The third end cover comprises a third bottom plate and a third side plate, wherein the third bottom plate is provided with a third avoiding hole, the third avoiding hole is communicated with the third through hole, the third side plate is annular and coaxially arranged with the third through hole, the inner wall of the third side plate is provided with threads, and the third external thread nut is threadedly connected with the third side plate.

[0017] In some embodiments, the second end of the first connecting plate is provided with a first reinforcing rib, and the fourth end of the second connecting plate is provided with a second reinforcing rib.

[0018] In some embodiments, the first driving motor is provided with a first limiting groove on the side close to the first end cover, the first limiting groove is circular arc-shaped, and the extending direction of the first limiting groove is the same as the rotating direction of the first output shaft of the first driving motor; the first end cover is provided with a first limiting block on the side close to the first driving motor, and the first limiting block is located in the first limiting groove; the second driving motor is provided with a second limiting groove on the side close to the second end cover, the second limiting groove is circular arc-shaped, and the extending direction of the second limiting groove is the same as the rotating direction of the second output shaft of the second driving motor; the second end cover is provided with a second limiting block on the side close to the second driving motor, and the second limiting block is located in the second limiting groove; the third driving motor is provided with a third limiting groove on the side close to the third end cover, the third limiting groove is circular arc-shaped, and the extending direction of the third limiting groove is the same as the rotating direction of the third output shaft of the third driving motor; the third end cover is provided with a third limiting block on the side close to the third driving motor, and the third limiting block is located in the third limiting groove.

[0019] In the second aspect, the embodiments of the present application provide a vehicle-mounted screen, which comprises any one of the screen supports described above, and a screen body and a connecting rod, wherein one end of the connecting rod is connected with the screen body, and the other end of the connecting rod is connected with the connecting shaft.

[0020] Since the automobile seat provided by the embodiments of the present application comprises any one of the screen supports described above, the automobile seat can produce the same beneficial effects as the screen supports, which will not be described herein again. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a schematic view of a screen support provided by the embodiments of the present application;

[0022] Figure 2One of the schematic diagrams of the first driving mechanism provided for the embodiments of the present application;

[0023] Figure 3 The second schematic diagram of the first driving mechanism provided for the embodiments of the present application;

[0024] Figure 4 One of the schematic diagrams of the second driving mechanism provided for the embodiments of the present application;

[0025] Figure 5 The second schematic diagram of the second driving mechanism provided for the embodiments of the present application;

[0026] Figure 6 One of the schematic diagrams of the third driving mechanism provided for the embodiments of the present application;

[0027] Figure 7 The second schematic diagram of the third driving mechanism provided for the embodiments of the present application;

[0028] Figure 8 The schematic diagram of the first end cover provided for the embodiments of the present application;

[0029] Figure 9 The schematic diagram of the second end cover provided for the embodiments of the present application;

[0030] Figure 10 The schematic diagram of the third end cover provided for the embodiments of the present application;

[0031] Figure 11 The schematic diagram of the first connecting plate provided for the embodiments of the present application;

[0032] Figure 12 The partial enlarged view of the first driving mechanism provided for the embodiments of the present application;

[0033] Figure 13 The schematic diagram of the second connecting plate provided for the embodiments of the present application;

[0034] Figure 14 The partial enlarged view of the second driving mechanism provided for the embodiments of the present application;

[0035] Figure 15 The schematic diagram of the third connecting plate provided for the embodiments of the present application;

[0036] Figure 16 The partial enlarged view of the third driving mechanism provided for the embodiments of the present application;

[0037] Figure 17 The schematic diagram of the first limiting groove and the first limiting block;

[0038] Figure 18 One of the schematic diagrams of the screen rotation provided for the embodiments of the present application;

[0039] Figure 19 FIG. 7 is a schematic view of a second limiting groove and a second limiting block;

[0040] Figure 20 FIG. 8 is a second schematic view of screen rotation provided by the embodiment of the present application;

[0041] Figure 21 FIG. 9 is a schematic view of a third limiting groove and a third limiting block;

[0042] Figure 22 FIG. 10 is a third schematic view of screen rotation provided by the embodiment of the present application;

[0043] Figure 23 FIG. 11 is a second schematic view of a screen support provided by the embodiment of the present application;

[0044] Figure 24 FIG. 12 is a third schematic view of a screen support provided by the embodiment of the present application;

[0045] Figure 25 FIG. 13 is a third schematic view of a first driving mechanism provided by the embodiment of the present application.

[0046] Reference numerals:

[0047] Screen support - 100; connecting shaft - 1000; screw - 1001; support - 2000; reducer - 1201;

[0048] First driving mechanism-10; first adjusting mechanism-1; first connecting plate-11; first end-111; second end-112; first through hole-1110; first abutting portion-1111; first reinforcing rib-1120; first driving motor-12; first limiting groove-121; first output shaft-120; first friction pair-13; first external thread nut-133; first shaft sleeve-134; first end cover-131; first limiting block-1310; first bottom plate-1311; first avoiding hole-13110; first side plate-1312; first friction gasket-132; second driving mechanism-20; second adjusting mechanism-2; second connecting plate-21; third end-211; fourth end-212; second through hole-2110; second abutting portion-2111; second reinforcing rib-2120; second driving motor-22; second limiting groove-221; second friction pair-23; second external thread nut-233; second shaft sleeve-234; second end cover-231; second limiting block-2310; second bottom plate-2311; second avoiding hole-23110; second side plate-2312; second external friction gasket-232; third driving mechanism-30; third adjusting mechanism-3; third connecting plate-31; third through hole-3110; third abutting portion-3111; third driving motor-32; third limiting groove-321; third output shaft-320; third friction pair-33; third end cover-331; third limiting block-3310; third bottom plate-3311; third avoiding hole-33110; third side plate-3312; third friction gasket-332; third external thread nut-333; third shaft sleeve-334; screen body-41; connecting rod-42. DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described in detail below with reference to the drawings.

[0050] In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] The terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0052] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0053] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The embodiment of the application provides a screen support for supporting a vehicle-mounted screen and adjusting the angle of the screen.

[0055] As Figure 1 The screen support 100 provided by the application includes a first driving mechanism 10, a second driving mechanism 20 and a third driving mechanism 30.

[0056] The first driving mechanism 10 includes a first driving motor and a first adjusting mechanism, one part of the first adjusting mechanism is connected with a first output shaft of the first driving motor, the other part is used for being connected with the screen, and the other part of the first adjusting mechanism can rotate relative to the one part of the first adjusting mechanism with the first output shaft as the shaft.

[0057] The second driving mechanism 20 includes a second driving motor and a second adjusting mechanism, one part of the second adjusting mechanism is connected with a second output shaft of the second driving motor, the other part is connected with the first driving mechanism, and the other part of the second adjusting mechanism can rotate relative to the one part of the second adjusting mechanism with the second output shaft as the shaft.

[0058] The third driving mechanism 30 includes a third driving motor and a third adjusting mechanism, one part of the third adjusting mechanism is connected with a third output shaft of the third driving motor, the other part is connected with the second driving mechanism, and the other part of the third adjusting mechanism can rotate relative to the one part of the third adjusting mechanism with the third output shaft as the shaft.

[0059] In addition, the first output shaft, the second output shaft and the third output shaft are perpendicular to each other in pairs. In this way, the screen can rotate in three different directions, so that the adjustment range of the screen is larger, and the needs of the user are met.

[0060] Based on this, a portion of the first drive mechanism 10 is used to connect to the screen, and another portion of the first drive mechanism 10 is used to connect to other drive mechanisms, such as the second drive mechanism 20 or the third drive mechanism 30. This allows the torque output by each drive mechanism to be transmitted to the screen during electric screen adjustment, causing the screen to rotate along different output axes under the drive of the drive mechanism. Alternatively, during manual screen adjustment, the force on the screen can be transmitted to the adjustment mechanism of each drive mechanism, allowing another portion of each adjustment mechanism to rotate relative to its respective output axis, thus achieving the purpose of manual screen adjustment.

[0061] Furthermore, it should be noted that the first drive mechanism 10, the second drive mechanism 20, and the third drive mechanism 30 of the screen bracket 100 provided in this application can operate simultaneously to drive the screen to rotate with multiple degrees of freedom. For example, when the first drive mechanism 10 is operating, another part of the first adjustment mechanism rotates around the first output shaft, thereby enabling the first adjustment mechanism to drive the screen to rotate around the first output shaft. Simultaneously, when the second drive mechanism 20 is operating, another part of the second adjustment mechanism rotates around the second output shaft, thereby driving the first drive mechanism 10 to rotate, and further driving the screen connected to the first drive mechanism 10 to rotate. This achieves rotation of the screen in the axial direction of the first output shaft and in the axial direction of the second output shaft, i.e., it achieves synchronous adjustment of the screen with multiple degrees of freedom.

[0062] like Figure 1 As shown, the screen bracket 100 provided in this application also includes a connecting shaft 1000. One end of the connecting shaft 1000 is used to connect to the screen, and the other end of the connecting shaft 1000 is partially connected to the first driving mechanism 10. Thus, the torque output by the first driving mechanism 10, as well as the torque output by the second driving mechanism 20 and the third driving mechanism 30, can be transmitted to the connecting shaft 1000, causing the connecting shaft 1000 to rotate, thereby driving the screen to rotate.

[0063] The first drive mechanism 10, the second drive mechanism 20 and the third drive mechanism 30 will be further explained below.

[0064] like Figure 2 As shown, Figure 2 This is a schematic diagram of the first drive mechanism 10. The first adjustment mechanism 1 includes a first connecting plate 11, which has a first end 111 and a second end 112 that are perpendicular to each other. The first end 111 is provided with a first through hole 1110, and a connecting shaft 1000 ( Figure 2 The other end of the shaft (not shown) extends into the first through hole 1110. Based on this, the first output shaft 120 of the first drive motor 12 extends into the first through hole 1110.

[0065] The first adjusting mechanism 1 further comprises a first friction pair 13, which can transmit the torque output by the first driving motor 12 to the connecting shaft 1000 to rotate the connecting shaft 1000 and further drive the screen to rotate.

[0066] As shown in Figure 2 and Figure 3 , the first friction pair 13 comprises a first end cover 131 and a first friction gasket 132. The first end cover 131 is arranged in the first through hole 1110 of the first connecting plate 11 and connected to the other end of the connecting shaft 1000. The first friction gasket 132 is arranged between the first connecting plate 11 and the first end cover 131, specifically, between the first end 111 of the first connecting plate 11 and the first end cover 131.

[0067] In some embodiments of the present application, the first end cover 131 and the connecting shaft 1000 are connected by a screw 1001. In order to enable the screw 1001 to be connected to the connecting shaft 1000 and the first end cover 131, threaded holes can be formed on the connecting shaft 1000 and the first end cover 131, so that the screw 1001 can be arranged in the threaded holes of the connecting shaft 1000 and the first end cover 131 and be screwed to the connecting shaft 1000 and the first end cover 131, thereby realizing the connection between the connecting shaft 1000 and the first end cover 131.

[0068] In addition to connecting the first end cover 131 and the connecting shaft 1000 by the screw 1001, other connection methods can also be used. For example, a clamping connection can be used, i.e., a clamping hook is arranged on the side of the first end cover 131 close to the connecting shaft 1000, and a clamping hole is arranged on the side of the connecting shaft 1000 close to the first connecting plate 11, and the clamping hook is inserted into the clamping hole to achieve the connection between the first end cover 131 and the connecting shaft 1000.

[0069] Continuing to refer to Figure 2 and Figure 3 , the first friction pair 13 further comprises a first external thread nut 133 and a first shaft sleeve 134. The first external thread nut 133 is arranged in the first through hole 1110 and coaxially arranged with the first end cover 131 and screwed to the first end cover 131. The first shaft sleeve 134 is arranged between the first external thread nut 133 and the first end cover 131. The first output shaft 120 of the first driving motor 12 passes through the first end cover 131 and is arranged in the first shaft sleeve 134 and clamped to the first shaft sleeve 134. The first external thread nut 133 is screwed to the first end cover 131, thereby pressing and fixing the first shaft sleeve 134 between the first end cover 131 and the first external thread nut 133.

[0070] Based on this, the end face of the first shaft sleeve 134 and the end face of the first end cover 131 cooperate to form a first inner ring friction pair, and the end face of the first friction pad 132 and the end face of the first end cover 131 cooperate to form a first outer ring friction pair. Among them, the friction torque of the first inner ring friction pair can be adjusted by the first outer threaded nut 133. For example, when the first outer threaded nut 133 is screwed in, the force of the first outer threaded nut 133 pressing the first shaft sleeve 134 increases, so that the friction torque of the first inner ring friction pair formed between the first shaft sleeve 134 and the first end cover 131 increases. When the first outer threaded nut 133 is unscrewed, the force of the first outer threaded nut 133 pressing the first shaft sleeve 134 decreases, so that the friction torque of the first inner ring friction pair formed between the first shaft sleeve 134 and the first end cover 131 decreases. The friction torque of the first outer ring friction pair can be adjusted by adjusting the pre-tightening force of the screw 1001, for example, screwing the screw 1001 further can increase the friction torque of the first outer ring friction pair, and unscrewing the screw 1001 can reduce the friction torque of the first outer ring friction pair.

[0071] Referring to Figure 2 and Figure 12 In some embodiments of the present application, a plurality of balls 1330 are arranged between the first outer threaded nut 133 and the first shaft sleeve 134. The balls 1330 can prevent the first outer threaded nut 133 from loosening.

[0072] Next, how the first friction pair 13 transmits the torque output by the first drive motor 12 to the connecting shaft 1000 will be described in combination with the above.

[0073] When the first drive motor 12 of the first drive mechanism 10 works, the first output shaft 120 rotates, and the first shaft sleeve 134 connected with the first output shaft 120 is driven to rotate by the first output shaft 120. The first shaft sleeve 134 rotates, and drives the first end cover 131 to rotate through the first inner ring friction pair. The first end cover 131 overcomes the friction torque of the first outer ring friction pair, and starts to rotate, and then the first end cover 131 drives the connecting shaft 1000 through the screw 1001, so that the screen connected with the connecting shaft 1000 rotates.

[0074] It should be noted that when the first drive mechanism 10 drives the screen to rotate, the rotation direction of the screen is the first rotation direction X, which is the same as the rotation direction of the first output shaft 120 of the first drive motor 12. It can be understood that when the screen rotates along the first rotation direction X, the screen is in a rolling motion, and the screen can be switched between landscape and portrait.

[0075] As Figure 4 shown, Figure 4FIG. 2 is a schematic view of the second driving mechanism 20. The second adjusting mechanism 2 comprises a second connecting plate 21, which has a third end 211 and a fourth end 212 perpendicular to each other, and the third end 211 is provided with a second through hole 2110, and the second end 112 of the first connecting plate 11 is partially inserted into the second through hole 2110. Based on this, the second output shaft 220 of the second driving motor 22 is inserted into the second through hole 2110.

[0076] The second adjusting mechanism 2 further comprises a second friction pair 23, which can transmit the torque output by the second driving motor 22 to the first connecting plate 11, so that the first connecting plate 11 rotates, thereby driving the screen to rotate.

[0077] As shown in Figure 4 and Figure 5 , the second friction pair 23 comprises a second end cover 231 and a second friction pad 232. Among them, the second end cover 231 is arranged in the second through hole 2110 of the second connecting plate 21 and is connected with the second end 112 of the first connecting plate 11. The second outer friction pad 232 is arranged between the second connecting plate 21 and the second end cover 231, specifically, the second friction pad 232 is arranged between the fourth end 212 of the second connecting plate 21 and the second end cover 231.

[0078] In some embodiments of the present application, the second end cover 231 and the second end 112 of the first connecting plate 11 are connected by using a screw 1001. In order to enable the screw 1001 to be connected with the second end 112 and the second end cover 231, threaded holes can be formed on the second end 112 and the second end cover 231, so that the screw 1001 can be arranged in the threaded holes of the second end 112 and the second end cover 231 and be screwed with the second end 112 and the second end cover 231, thereby realizing the connection between the second end 112 and the second end cover 231.

[0079] In addition to connecting the second end cover 231 and the second end 112 by using the screw 1001, other connection methods can also be used. The connection can be achieved by clamping, for example, a clamping hook is arranged on the side of the second end cover 231 close to the second end 112, and a clamping hole is arranged on the side of the second end 112 close to the second connecting plate 21, and the clamping hook is inserted into the clamping hole and clamped, thereby realizing the connection between the second end cover 231 and the second end 112.

[0080] Continuing to refer to Figure 4 and Figure 5The second friction pair 23 further comprises a second externally threaded nut 233 and a second shaft sleeve 234. The second externally threaded nut 233 is disposed in the second through hole 2110 coaxially with the second end cover 231 and is threadedly connected with the second end cover 231. The second shaft sleeve 234 is disposed between the second externally threaded nut 233 and the second end cover 231. The second output shaft 220 of the second driving motor 22 passes through the second end cover 231 and is clamped with the second shaft sleeve 234. The second externally threaded nut 233 is threadedly connected with the second end cover 231, thereby extruding and fixing the second shaft sleeve 234 between the second end cover 231 and the second externally threaded nut 233.

[0081] Based on this, the end face of the second shaft sleeve 234 and the end face of the second end cover 231 form a second inner ring friction pair, and the end face of the second friction pad 232 and the end face of the second end cover 231 form a second outer ring friction pair.

[0082] The friction torque of the second inner ring friction pair can be adjusted by the second shaft sleeve 234. For example, when the second shaft sleeve 234 is screwed in, the extrusion force of the second shaft sleeve 234 increases, thereby increasing the friction torque of the second inner ring friction pair formed between the second shaft sleeve 234 and the second end cover 231. When the second shaft sleeve 234 is unscrewed, the extrusion force of the second shaft sleeve 234 decreases, thereby decreasing the friction torque of the second inner ring friction pair formed between the second shaft sleeve 234 and the second end cover 231. The friction torque of the second outer ring friction pair can be adjusted by adjusting the pre-tightening force of the screw 1001. For example, further screwing in the screw 1001 can increase the friction torque of the second outer ring friction pair, and unscrewing the screw 1001 can decrease the friction torque of the second outer ring friction pair.

[0083] Referring to Figure 4 and Figure 14 In some embodiments of the present application, a ball 1330 is further disposed between the second externally threaded nut 233 and the second shaft sleeve 234. The ball 1330 can prevent the second externally threaded nut 233 from loosening.

[0084] Next, how the second friction pair 23 transmits the torque output by the second driving motor 22 to the first connecting plate 11 will be described in combination with the above content.

[0085] When the second drive motor 22 of the second drive mechanism 20 operates and the second output shaft 220 rotates, the second bushing 234, which is engaged with the second output shaft 220, is driven by the second output shaft 220. The second bushing 234 rotates, which in turn drives the second end cover 231 to rotate through the second inner ring friction pair. The second end cover 231 overcomes the frictional torque of the second outer ring friction pair, and the second end cover 231 begins to rotate. Then, the second end cover 231 drives the first connecting plate 11 through the screw 1001, and the first connecting plate 11 rotates. Since part of the connecting shaft 1000 is located in the first through hole 1110 of the first connecting plate 11, and since the connecting shaft 1000 is connected to the first end cover 131, when the second drive motor 22 works and drives the first connecting plate 11 to rotate, the connecting shaft 1000 and the first connecting plate 11 can be regarded as a whole. Furthermore, the axial direction of the connecting shaft 1000 is different from the rotation direction. Therefore, the connecting shaft 1000 and the screen connected to the connecting shaft 1000 can rotate with the first connecting plate 11 around the axial direction of the second output shaft 220.

[0086] Furthermore, it should be noted that when the second drive mechanism 20 drives the screen to rotate, the screen rotates in the second rotation direction Y, which is the same as the rotation direction of the second output shaft 220 of the second drive motor 22. It can be understood that when the screen rotates along the second rotation direction Y, the screen undergoes a pitch motion, and the screen can adjust its pitch angle within a certain range.

[0087] like Figure 6 As shown, Figure 6 This is a schematic diagram of the third drive mechanism 30. The third adjustment mechanism 3 includes a third connecting plate 31, which has a third through hole 3110. The fourth end 212 of the second connecting plate 21 extends into the third through hole 3110. Based on this, the third output shaft 320 of the third drive motor 32 extends into the third through hole 3110.

[0088] The third adjustment mechanism 3 also includes a third friction pair 33, which can transmit the torque output by the third drive motor 32 to the second connecting plate 21, causing the second connecting plate 21 to rotate, thereby driving the screen to rotate.

[0089] like Figure 6 and Figure 7 As shown, the third friction pair 33 includes a third end cap 331 and a third friction pad 332. The third end cap 331 is disposed within the third through hole 3110 of the third connecting plate 31 and connected to the fourth end 212 of the second connecting plate 21. The third external friction pad 332 is disposed between the third connecting plate 31 and the third end cap 331; specifically, the third friction pad 332 is disposed between the third connecting plate 31 and the third end cap 331.

[0090] In some embodiments of the present application, the third end cover 331 and the fourth end 212 of the second connecting plate 21 are connected by using a screw 1001. In order to enable the screw 1001 to be connected with the fourth end 212 and the third end cover 331, threaded holes can be formed on the fourth end 212 and the second end cover 231, so that the screw 1001 can be arranged in the threaded holes of the fourth end 212 and the second end cover 231 and be screwed with the fourth end 212 and the second end cover 231, thereby realizing the connection between the fourth end 212 and the second end cover 231.

[0091] In addition to connecting the third end cover 331 and the fourth end 212 by using the screw 1001, other connection methods can also be used. For example, a clamping connection can be used, that is, a clamping hook is arranged on the side of the third end cover 331 close to the fourth end 212, and a clamping hole is arranged on the side of the fourth end 212 close to the third connecting plate 31, and the clamping hook is inserted into the clamping hole and clamped, thereby realizing the connection between the third end cover 331 and the fourth end 212.

[0092] Continuing to refer to Figure 6 and Figure 7 The third friction pair 33 further includes a third externally threaded nut 333 and a third shaft sleeve 334. The third externally threaded nut 333 is arranged in the third through hole 3110 and coaxially arranged with the third end cover 331 and is screwed with the third end cover 331. The third shaft sleeve 334 is arranged between the third externally threaded nut 333 and the third end cover 331. The third output shaft 320 of the third driving motor 32 passes through the third end cover 331 and is arranged in the third shaft sleeve 334 and is clamped with the third shaft sleeve 334. The third externally threaded nut 333 is screwed with the third end cover 331, thereby pressing and fixing the third shaft sleeve 334 between the third end cover 331 and the third externally threaded nut 333.

[0093] Based on this, the end face of the third shaft sleeve 334 and the end face of the third end cover 331 form a third inner ring friction pair, and the end face of the third friction pad 332 and the end face of the third end cover 331 form a third outer ring friction pair.

[0094] The friction torque of the third inner ring friction pair can be adjusted by the third shaft sleeve 334. For example, when the third shaft sleeve 334 is screwed in, the pressing force of the third shaft sleeve 334 increases, so that the friction torque of the third inner ring friction pair formed between the third shaft sleeve 334 and the third end cover 331 increases. When the third shaft sleeve 334 is screwed out, the pressing force of the third shaft sleeve 334 decreases, so that the friction torque of the third inner ring friction pair formed between the third shaft sleeve 334 and the third end cover 331 decreases. The friction torque of the third outer ring friction pair can be adjusted by adjusting the pre-tightening force of the screw 1001, for example, screwing the screw 1001 further in can increase the friction torque of the third outer ring friction pair, and unscrewing the screw 1001 can decrease the friction torque of the third outer ring friction pair.

[0095] Referring to Figure 6 and Figure 16 In some embodiments of the present application, a ball 1330 is further arranged between the third outer threaded nut 333 and the third shaft sleeve 334, which can prevent the third outer threaded nut 333 from loosening.

[0096] Next, how the third friction pair 33 transmits the torque output by the third drive motor 32 to the second connecting plate 21 will be described in combination with the above.

[0097] When the third drive motor 32 of the third drive mechanism 30 works, the third output shaft 320 rotates, the third shaft sleeve 334 connected with the third output shaft 320 is driven by the third output shaft 320, the third shaft sleeve 334 rotates, and the third end cover 331 is driven to rotate by the third inner ring friction pair. The third end cover 331 overcomes the friction torque of the third outer ring friction pair, and the third end cover 331 starts to rotate, and then the third end cover 331 drives the second connecting plate 21 through the screw 1001, and the second connecting plate 21 rotates. Therefore, the first drive mechanism 10 connected with the second connecting plate 21 can rotate with the second connecting plate 21 around the rotation direction of the third output shaft 320.

[0098] It should be noted that when the third drive mechanism 30 drives the screen to rotate, the rotation direction of the screen is the third rotation direction Z, which is the same as the rotation direction of the third output shaft 320 of the third drive motor 32. It can be understood that when the screen rotates along the third rotation direction Z, the screen is in a yaw motion, and the screen can rotate left and right, for example, rotating left to face the driver's seat or rotating right to face the front passenger's seat.

[0099] On this basis, as Figure 1As shown, the screen support 100 provided by the present application further comprises a support 2000 connected with the third connecting plate 31. In this way, the third connecting plate 31 can be connected with the support 2000, which can support and fix the third connecting plate 31. For example, one end of the support 2000 is connected with the third connecting plate 31, which can support the third driving mechanism 30 and the second driving mechanism 20 and the first driving mechanism 10 connected in series. The other end of the support 2000 can be installed on the central console of the vehicle, so as to install the screen support 100 and the screen connected with the screen support 100 on the central console for the driver and the passenger to use.

[0100] As described above, the screen support 100 provided by the present application mainly comprises the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30, which are connected in series. The first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30 can drive the screen to rotate along the first rotation direction X, the second rotation direction Y and the third rotation direction Z, respectively.

[0101] On the basis of the electric adjustment of the screen angle by the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30, the screen support 100 provided by the present application can also manually adjust the screen angle.

[0102] Next, an example is given. When the driver and the passenger need to manually adjust the screen, an acting force can be applied to the screen. For example, when the screen needs to be adjusted from a horizontal screen state to a vertical screen state, an acting force can be applied to the screen to push the screen along the first rotation direction X from the bottom of the screen. In this case, the acting force applied to the screen is transmitted to the connecting shaft 1000 connected with the screen, and the connecting shaft 1000 rotates. Thus, the connecting shaft 1000 is connected with the first end cover 131 through the screw 1001, and when the size of the acting force applied to the screen is greater than the sum of the static friction of the first outer ring friction pair and the static friction of the first inner ring friction pair, the first outer ring friction pair and the first inner ring friction pair slip, the first end cover 131 rotates, and thus the screen rotates, achieving the purpose of manually adjusting the screen.

[0103] When the driver needs to adjust the pitch angle of the screen, an action force can be applied to the screen, which can act on the top or bottom of the screen and push the screen in the second rotation direction Y. In this way, the action force can be transmitted to the first connecting plate 11 through the screen, and then the first connecting plate 11 is connected and drives the second end cover 231 through the screw 1001. When the size of the action force applied to the screen is greater than the sum of the static friction of the second outer ring friction pair and the static friction of the second inner ring friction pair, the second outer ring friction pair and the second inner ring friction pair are both slipped, the second end cover 231 is rotated, and thus the screen is rotated, achieving the purpose of manually adjusting the pitch angle of the screen.

[0104] When it is needed to swing the screen left and right, an action force can be applied to the left end or right end of the screen and push the screen in the third rotation direction Z. In this way, the action force can be transmitted to the second connecting plate 21 through the screen, and then the second connecting plate 21 is connected and drives the third end cover 331 through the screw 1001. When the size of the action force applied to the screen is greater than the sum of the static friction of the third outer ring friction pair and the static friction of the third inner ring friction pair, the third outer ring friction pair and the third inner ring friction pair are both slipped, the third end cover 331 is rotated, and thus the screen is rotated, achieving the purpose of manually adjusting the screen left and right swing.

[0105] As can be seen from the above, the screen support 100 provided by the application can also overcome the sum of the static friction of the inner ring friction pair and the static friction of the outer ring friction pair by applying an action force to the screen, so that the outer ring friction pair and the inner ring friction pair are both slipped, and the end cover can be rotated, thereby achieving the purpose of manually adjusting the angle of the screen.

[0106] As can be seen from the above, during the adjustment of the screen, the first end cover 131 is located in the first through hole 1110 of the first connecting plate 11 and is rotationally matched with the first connecting plate, and the second end cover 231 and the third end cover 331 are both rotationally matched with the second connecting plate 21 and the third connecting plate 31. It can be understood that during use, there is wear between each end cover and connecting plate, and severe wear can affect the normal rotation of the screen, for example, a gap between the end cover and the connecting plate can cause shaking during rotation.

[0107] Based on this, in order to solve the above situation, in some embodiments of the application, the screen support 100 provided by the application can also include an oil-free bearing. Taking the first end cover 131 and the first connecting plate 11 as an example for description, referring to Figure 2 and Figure 3 The oil-free bearing 400 is located inside the first through hole 1110 and outside the first end cover 131. That is, the oil-free bearing 400 is arranged between the first connecting plate 11 and the first end cover 131. In this way, the oil-free bearing 400 can play a lubricating role to reduce the friction loss between the first end cover 131 and the first connecting plate 11.

[0108] Similarly, the oil-free bearing 400 (see Figure 4 and Figure 5 ) can also be provided between the second end cover 231 and the second connecting plate 21 to reduce the friction loss between the second end cover 231 and the second connecting plate 21. The oil-free bearing 400 (see Figure 6 and Figure 7 ) can also be provided between the third end cover 331 and the third connecting plate 31 to reduce the friction loss between the third end cover 331 and the third connecting plate 31.

[0109] In addition, it should be noted that the first friction pad 132 can increase the friction between the first end cover 131 and the first connecting plate 11, so as to avoid the friction between the first end cover 131 and the first connecting plate 11 being too small, thereby avoiding the first end cover 131 slipping relative to the first connecting plate 11 to cause the screen to rotate, thereby playing a certain anti-mis-touch role. For example, it can prevent the driver from mis-touching to cause the screen to rotate, and it can also prevent the screen from being forced to rotate due to road excitation and vehicle vibration during driving.

[0110] It should be noted that during driving, vibration is inevitable, and under the influence of vibration, each part of the screen support 100 will also vibrate, especially the rotation between the first end cover 131 and the first connecting plate 11 will collide with each other, which will produce noise and the screen may also shake. The first friction pad 132 provided between the first end cover 131 and the first connecting plate 11 can just play a role in buffering and shock absorption, reducing noise and screen shaking.

[0111] In addition, it should be noted that the first friction pad 132 can be made of other elastic materials such as rubber.

[0112] As described above, the first friction pad 132 can play a role in buffering and shock absorption, and provide friction to prevent the first end cover 131 from slipping. In some embodiments, in order to better play the roles of buffering and shock absorption and providing friction, the number of first friction pads 132 can be two Figure 2 ), one first friction pad 132 is provided between the first end cover 131 and the first connecting plate 11, and the other first friction pad 132 is provided between the first connecting plate 11 and the connecting shaft 1000.

[0113] The second friction pad 232 can increase the friction between the second end cover 231 and the second connecting plate 21, so as to avoid the friction between the second end cover 231 and the second connecting plate 21 being too small, thereby avoiding the second end cover 231 slipping relative to the second connecting plate 21 to cause the screen to rotate.

[0114] It can be understood that the second friction pad 232 can also play a role in buffering and shock absorption, which will not be repeated here. Similarly, the number of second friction pads 232 can also be two Figure 4 ).

[0115] The third friction pad 332 can increase the friction between the third end cover 331 and the third connecting plate 31, avoid the friction between the third end cover 331 and the third connecting plate 31 being too small, and avoid the third end cover 331 slipping relative to the third connecting plate 31, causing the screen to rotate.

[0116] It can be understood that the third friction pad 332 can also play a role in buffering and shock absorption, which will not be repeated here. Similarly, the number of third friction pads 332 can also be two Figure 6 ).

[0117] As can be seen from the above, the first end cover 131, the second end cover 231 and the third end cover 331 play an important role in torque transmission. Next, the first end cover 131, the second end cover 231 and the third end cover 331 will be further described in conjunction with the drawings.

[0118] As shown in Figure 8 , the first end cover 131 includes a first bottom plate 1311 and a first side plate 1312. The first bottom plate 1311 is provided with a first avoiding hole 13110, and the first avoiding hole 13110 is in communication with the first through hole 1110. In this way, the first output shaft 120 of the first drive motor 12 can extend into the first through hole 1110 through the first avoiding hole 13110, and then be connected with the first shaft sleeve 134. The first side plate 1312 is annular and coaxial with the first through hole 1110, and the inner wall of the first side plate 1312 is provided with threads to enable the first external thread nut 133 to be threadedly connected with the first side plate 1312.

[0119] As shown in Figure 9 , the second end cover 231 includes a second bottom plate 2311 and a second side plate 2312. The second bottom plate 2311 is provided with a second avoiding hole 23110, and the second avoiding hole 23110 is in communication with the second through hole 2110. In this way, the second output shaft 220 of the second drive motor 22 can extend into the second through hole 2110 through the second avoiding hole 23110, and then be connected with the second shaft sleeve 234. The second side plate 2312 is annular and coaxial with the second through hole 2110, and the inner wall of the second side plate 2312 is provided with threads to enable the second external thread nut 233 to be threadedly connected with the second side plate 2312.

[0120] As shown in Figure 10As shown, the third end cover 331 comprises a third bottom plate 3311 and a third side plate 3312. Among them, the third bottom plate 3311 is provided with a third avoiding hole 33110, and the third avoiding hole 33110 is in communication with the third through hole 3110. In this way, the third output shaft 320 of the third drive motor 32 can extend into the third through hole 3110 through the third avoiding hole 33110, and then be clamped with the third shaft sleeve 334. The third side plate 3312 is annular and coaxially arranged with the third through hole 3110, and the inner wall of the third side plate 3312 is provided with threads to enable the third external thread nut 333 to be threadedly connected with the third side plate 3312.

[0121] As shown in Figure 11 and Figure 12 , the first connecting plate 11 is provided with a first abutting portion 1111 along the inner wall of the first through hole 1110. Based on this, the first friction pad 132 is arranged between the first end cover 131 and the first abutting portion 1111. In this way, the first abutting portion 1111 can play a limiting role to avoid displacement of the first friction pad 132 or disengagement from the first through hole 1110.

[0122] As shown in Figure 13 and Figure 14 , the second connecting plate 21 is provided with a second abutting portion 2111 along the inner wall of the second through hole 2110, and based on this, the second friction pad 232 is arranged between the second end cover 231 and the second abutting portion 2111. In this way, the second abutting portion 2111 can play a limiting role to avoid displacement of the second friction pad 232 or disengagement from the second through hole 2110.

[0123] As shown in Figure 15 and Figure 16 , the third connecting plate 31 is provided with a third abutting portion 3111 along the inner wall of the third through hole 3110, and based on this, the third friction pad 332 is arranged between the third end cover 331 and the third abutting portion 3111. In this way, the third abutting portion 3111 can play a limiting role to avoid displacement of the third friction pad 332 or disengagement from the third through hole 3110. Based on this, in order to ensure that the torque output by the first drive motor 12 can be transmitted to the connecting shaft 1000 through the first friction pair 13, so that the screen connected with the connecting shaft 1000 can rotate. The first drive motor 12 and the first friction pair 13 satisfy the following conditions: M m1 >M out-J1 , and M in-J1 >M out-J1 .

[0124] Among them, M m1 is the peak output torque of the first drive motor 12. M in-J1 is the static friction torque between the first shaft sleeve 134 and the first end cover 131, which is defined as the first inner static friction torque Min-J1 out-J1 M out-J1 .

[0125] Thus, when the first driving motor 12 is working, the torque outputted by the first driving motor 12 is transmitted to the first shaft sleeve 134 through the first output shaft 120. Since the peak output torque M m1 of the first driving motor 12 is greater than the first outer static friction torque M out-J1 , and the first inner static friction torque M in-J1 is greater than the first outer static friction torque M out-J1 , the first end cover 131 and the first friction pad 132 will slip first, and the first end cover 131 will start to rotate relative to the first friction pad 132, and drive the connecting shaft 1000 and the screen to rotate. The first shaft sleeve 134 and the first end cover 131 will remain relatively static, and the first shaft sleeve 134 can continuously drive the first end cover 131 to rotate.

[0126] In order to ensure that the torque outputted by the second driving motor 22 can be transmitted to the first connecting plate 11 through the second friction pair 23, so that the first connecting plate 11 rotates and in turn drives the screen to rotate. The second driving motor 22 and the second friction pair 23 satisfy the following conditions: M m2 >M out-J2 , and M in-J2 >M out-J2 .

[0127] M m2 is the peak output torque of the second driving motor 22. M in-I2 is the static friction torque between the second end cover 231 and the second shaft sleeve 234, defined as the second inner static friction torque M in-J2 . M out-J2 is the static friction torque between the second end cover 231 and the second friction pad 232, defined as the second outer static friction torque M out-J2 .

[0128] Thus, when the second driving motor 22 is working, the torque outputted by the second driving motor 22 is transmitted to the second shaft sleeve 234 through the second output shaft 220. Since the peak output torque M m2 of the second driving motor 22 is greater than the second outer static friction torque M out-J2 , and the second inner static friction torque M in-J2 is greater than the second outer static friction torque M out-J2 ​Therefore, the first end cover 211 and the first friction pad 212 first slip, the first end cover 211 starts to rotate relative to the first friction pad 212, and drives the first connecting plate 11 and the screen to rotate. The second shaft sleeve 234 and the second end cover 231 remain relatively static, and the second shaft sleeve 234 can continuously drive the second end cover 231 to rotate.

[0129] To ensure that the torque output by the third drive motor 32 can be transmitted to the second connecting plate 21 through the third friction pair 33, so that the second connecting plate 21 rotates and in turn drives the screen to rotate. The third drive motor 32 and the third friction pair 33 satisfy the following conditions: M m3 >M out-J3 , and M in-J3 >M out-J3 .

[0130] Wherein, M m3 is the peak output torque of the third drive motor 32. M in-J3 is the static friction torque between the third end cover 331 and the third shaft sleeve 334, defined as the third inner static friction torque M in-J3 . M out-J3 is the static friction torque between the third end cover 331 and the third friction pad 332, defined as the third outer static friction torque M out-J3 .

[0131] In this way, when the third drive motor 32 is working, the torque output by the third drive motor 32 is transmitted to the third shaft sleeve 334 clamped thereto through the third output shaft 320. Since the peak output torque M m3 of the third drive motor 32 is greater than the third outer static friction torque M out-J3 , and the third inner static friction torque M in-J3 is greater than the third outer static friction torque M out-J3 . Therefore, the third end cover 331 and the third friction pad 332 first slip, the third end cover 331 starts to rotate relative to the third friction pad 332, and drives the second connecting plate 21 and the screen to rotate. The third shaft sleeve 334 and the third end cover 331 remain relatively static, and the third shaft sleeve 334 can continuously drive the third end cover 331 to rotate.

[0132] In addition, the self-locking torque of the first drive motor 12 provided by the present application is M lock1 , and M lock1 satisfies: M lock1 >M in-J1 , that is, the self-locking torque of the first drive motor 12 is greater than the first inner static friction torque. It should be noted that the self-locking torque of the first drive motor 12 refers to the torque required to rotate the first output shaft 120 of the first drive motor 12 in the state that the first drive motor 12 is not working.

[0133] In this case, when the driver manually adjusts the screen to rotate in the first rotation direction X, the force applied by the driver to the screen is transmitted to the connecting shaft 1000 through the screen, and the connecting shaft 1000 transmits the torque to the first end cover 131. When the torque transmitted to the first end cover 131 can overcome the sum of the first outer static friction M out-J1 and the first inner static friction M in-J1 , the first end cover 131 starts to rotate. During the rotation of the first end cover 131, the force acting on the first shaft sleeve 134 is equal to the size of the first inner static friction M in-J1 , and is smaller than the self-locking torque M lock1 of the first driving motor 12. Therefore, the first shaft sleeve 134 cannot overcome the self-locking torque M lock1 of the first driving motor 12, and the first output shaft 120 of the first driving motor 12 does not rotate during the manual adjustment of the screen in the first rotation direction X, thereby protecting the first driving motor 12.

[0134] The self-locking torque of the second driving motor 22 provided in the application is M lock2 , and M lock2 satisfies: M lock2 > M in-J2 , that is, the self-locking torque of the second driving motor 22 is greater than the second inner static friction torque. It should be noted that the self-locking torque of the second driving motor 22 refers to the torque required to rotate the second output shaft 220 of the second driving motor 22 in the state that the second driving motor 22 is not working.

[0135] In this case, when the driver manually adjusts the screen to rotate in the second rotation direction Y, the force applied by the driver to the screen is transmitted to the second end cover 231, and the torque transmitted to the second end cover 231 can overcome the sum of the second outer static friction M out-J2 and the second inner static friction M in-J2 , the second end cover 231 starts to rotate. During the rotation of the second end cover 231, the force acting on the second shaft sleeve 234 is equal to the size of the second inner static friction M in-J2 , and is smaller than the self-locking torque M lock2 of the second driving motor 22. Therefore, the second shaft sleeve 234 cannot overcome the self-locking torque M lock2 of the second driving motor 22, and the second output shaft 220 of the second driving motor 22 does not rotate during the manual adjustment of the screen in the second rotation direction Y, thereby protecting the second driving motor 22.

[0136] The self-locking torque of the third driving motor 32 provided in the application is M lock3 , and M lock3Satisfied:

[0137] M lock3 M in-J3 , that is, the self-locking torque of the third driving motor 32 is greater than the third internal static friction torque. It should be noted that the self-locking torque of the third driving motor 32 refers to the torque required to rotate the third output shaft 320 of the third driving motor 32 in a state where the third driving motor 32 is not working.

[0138] In this case, when the occupant manually adjusts the screen to rotate in the third rotation direction Z, the force applied by the occupant to the screen is transmitted to the third end cover 331 through the screen, and the torque transmitted to the third end cover 331 can overcome the sum of the third external static friction M out-J3 and the third internal static friction M in-J3 , the third end cover 331 starts to rotate. During the rotation of the third end cover 331, the force acting on the third shaft sleeve 334 is equal to the size of the third internal static friction M jn-J3 , and is less than the self-locking torque M lock3 of the third driving motor 32. Therefore, the third shaft sleeve 334 cannot overcome the self-locking torque M lock3 of the third driving motor 32, and further, during the process of manually adjusting the screen to rotate in the third rotation direction Z by the occupant, the third output shaft 320 of the third driving motor 32 will not rotate, which plays a role in protecting the third driving motor 32.

[0139] As Figure 11 shown, in some embodiments of the present application, the second end 112 of the first connecting plate 11 is provided with a first reinforcing rib 1120, which can improve the structural strength of the second end 112, so that the connection between the second end 112 and the second connecting plate 21 is more reliable.

[0140] As Figure 13 shown, in some embodiments of the present application, the fourth end 212 of the second connecting plate 21 is provided with a second reinforcing rib 2120, which can improve the structural strength of the fourth end 212, so that the connection between the fourth end 212 and the third connecting plate 31 is more reliable.

[0141] From the above, it can be seen that the screen support 100 provided by the present application can drive the screen to rotate to adjust the screen angle through the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30, or manually rotate the screen to adjust the screen angle. In order to avoid the rotation angle of the screen being too large to cause the screen to collide with other objects during rotation, the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30 provided by the present application are also provided with a limiting structure, which will be further described in combination with the drawings.

[0142] As Figure 2 andFigure 17 As shown, the first driving motor 12 is provided with a first limiting groove 121 on the side close to the first end cover 131. The first limiting groove 121 is in the shape of a circular arc, and the extending direction of the first limiting groove 121 is the same as the rotating direction of the first output shaft 120 of the first driving motor 12, that is, the extending direction of the first limiting groove 121 is the same as the first rotating direction X. Based on this, the first end cover 131 is provided with a first limiting block 1310 on the side close to the first driving motor 12, and the first limiting block 1310 is located in the first limiting groove 121.

[0143] In addition, it should be noted that the center of the circular arc-shaped first limiting groove 121 passes through the axis of the first through hole 1110, so as to ensure that the first limiting block 1310 can move along the first limiting groove 121 during the rotation of the first end cover 131.

[0144] In this way, when the first driving motor 12 works and drives the first end cover 131 to rotate, the first limiting block 1310 located in the first limiting groove 121 will move along the extending direction of the first limiting groove 121 in the first limiting groove 121. When the first limiting block 1310 moves to the end of the first limiting groove 121, the first limiting groove 121 will prevent the first limiting block 1310 from continuing to move, and thus the first end cover 131 will no longer rotate, and the screen driven by the first end cover 131 will also no longer rotate, thereby achieving the purpose of limiting the rotating angle of the screen. Specifically, the first limiting block 1310 and the first limiting groove 121 can limit the rotating angle of the screen in the first rotating direction X.

[0145] In some embodiments of the present application, the central angle θx corresponding to the first limiting groove 121 can be 90°. In this way, when the first driving mechanism 10 drives the screen to rotate, the screen can rotate in the range of 0° to 90° (see FIG. 4B). Figure 18 That is, the screen can rotate between the horizontal screen and the vertical screen, and of course the angle between 0° and 90° can also be freely selected. It should be noted that the angle of the central angle corresponding to the first limiting groove 121 is not limited in the present application, and the central angle of the first limiting groove 121 is 90° only as an exemplary description. The central angle of the first limiting groove 121 can also be 100°, 105°, 110°, etc.

[0146] As shown in FIG. 4A, Figure 4 and Figure 19As shown, the second driving motor 22 is provided with a second limiting groove 221 on the side close to the second end cover 231, the second limiting groove 221 is arc-shaped, and the extending direction of the second limiting groove 221 is the same as the rotating direction of the second output shaft 220 of the second driving motor 22, that is, the extending direction of the second limiting groove 221 is the same as the second rotating direction Y. Based on this, the second end cover 231 is provided with a second limiting block 2310 on the side close to the second driving motor 22, and the second limiting block 2310 is located in the second limiting groove 221.

[0147] In addition, it needs to be explained that the center of the arc-shaped second limiting groove 221 passes through the axis of the second through hole 2110, so as to ensure that the second limiting block 2310 can move along the second limiting groove 221 during the rotation of the second end cover 231.

[0148] In this way, when the second driving motor 22 works and drives the second end cover 231 to rotate, the second limiting block 2310 located in the second limiting groove 221 will move along the extending direction of the second limiting groove 221 in the second limiting groove 221. When the second limiting block 2310 moves to the end of the second limiting groove 221, the second limiting groove 221 will prevent the second limiting block 2310 from continuing to move, and then the second end cover 231 will no longer rotate, and the screen driven by the second end cover 231 will also no longer rotate, thereby achieving the purpose of limiting the rotation angle of the screen. Specifically, the second limiting block 2310 and the second limiting groove 221 can limit the rotation angle of the screen in the second rotating direction Y.

[0149] In some embodiments of the present application, the central angle corresponding to the second limiting groove 221 can be 25°θy. In this way, when the second driving mechanism 20 drives the screen to rotate, the screen can rotate in the range of -5° to 20°, that is, the screen can rotate in the range of -5° to 20° during the pitch adjustment (see Figure 20 ). Here, -5° to 20° refers to the angle of rotation relative to the vertical state of the screen. In addition, it also needs to be explained that the angle of the central angle corresponding to the second limiting groove 221 is not limited in the present application, and the central angle of the first limiting groove 121 is 25°, which is only exemplary. The central angle of the first limiting groove 121 can also be 30°, 35°, 40°, etc.

[0150] As Figure 6 and Figure 21As shown, the third driving motor 32 is provided with a third limiting groove 321 on the side close to the third end cover 331, the third limiting groove 321 is arc-shaped, and the extending direction of the third limiting groove 321 is the same as the rotating direction of the third output shaft 320 of the third driving motor 32, that is, the extending direction of the third limiting groove 321 is the same as the third rotating direction Z. Based on this, the third end cover 331 is provided with a third limiting block 3310 on the side close to the third driving motor 32, and the third limiting block 3310 is located in the third limiting groove 321.

[0151] In addition, it needs to be explained that the center of the arc-shaped third limiting groove 321 passes through the axis of the third through hole 3110, so as to ensure that the third limiting block 3310 can move along the third limiting groove 321 during the rotation of the third end cover 331.

[0152] In this way, when the third driving motor 32 works and drives the third end cover 331 to rotate, the third limiting block 3310 located in the third limiting groove 321 will move along the extending direction of the third limiting groove 321 in the third limiting groove 321. When the third limiting block 3310 moves to the end of the third limiting groove 321, the third limiting groove 321 will prevent the third limiting block 3310 from continuing to move, and then the third end cover 331 will no longer rotate, and the screen driven by the third end cover 331 will also no longer rotate, thereby achieving the purpose of limiting the rotating angle of the screen. Specifically, the third limiting block 3310 and the third limiting groove 321 can limit the rotating angle of the screen in the third rotating direction Z.

[0153] In some embodiments of the present application, the central angle θz corresponding to the third limiting groove 321 can be 40°, so that when the second driving mechanism 20 drives the screen to rotate, the screen can rotate in the range of -20° to 20°. That is, when the screen swings left and right, it can rotate 0° to 20° to the right and 0° to 20° to the left (see Figure 22 ). In addition, it also needs to be explained that the central angle of the second limiting groove 221 is not limited in the present application, and the central angle of the first limiting groove 121 is only exemplary, which can be 50°, 60°, 70°, etc.

[0154] On this basis, the present application also provides a vehicle-mounted screen, which mainly comprises the above-mentioned screen support 100, and a screen body 41 and a connecting rod 42. Wherein, one end of the connecting rod 42 is connected with the screen body 41, and the other end is connected with the connecting shaft 1000.

[0155] In this way, when the first driving mechanism 10 or the second driving mechanism 20 or the third driving mechanism 30 works, it can drive the screen body 41 to rotate.

[0156] From the above, the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30 of the screen support 100 provided by the application have similar structures, the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30 adopt a modular design, and the same connection mode is adopted between the two driving mechanisms connected, such as connection through screws.

[0157] The modular design makes the screen support 100 provided by the application have higher design freedom and be convenient to maintain.

[0158] Referring to Figure 23 and Figure 24 When the screen support 100 does not need to be adjusted in pitch, that is, the screen does not need to be rotated in the second rotation direction Y, the second driving mechanism 20 can be removed, and the first driving mechanism 10 and the third driving mechanism 30 are connected. Specifically, the second end 112 of the first connecting plate 11 of the first driving mechanism 10 is inserted into the third through hole 3110 of the third connecting plate 31 of the third driving mechanism 30, and is connected with the third end cover 331 through screws. In this way, the screen support 100 can be designed according to the use requirement, which is more flexible. At the same time, when one of the first driving mechanism 10, the second driving mechanism 20 and the third driving mechanism 30 fails, the failed one can be removed and repaired alone, which reduces the maintenance difficulty and maintenance cost.

[0159] In addition, it should be noted that the first driving motor 12, the second driving motor 22 and the third driving motor 32 provided by the application all include a motor and a speed reducer. The motor is used to provide driving force, and the speed reducer is used to reduce the speed and increase the output torque.

[0160] Taking the first driving motor 12 as an example, referring to Figure 25 , the speed reducer 1201 of the first driving motor 12 is located between the first end 111 and the second end 112 of the first connecting plate 11, and is located at the bending part of the first connecting plate 11, that is, the first connecting plate 11 is arranged on the side of the speed reducer 1201 of the first driving motor 12 in a half-enclosing manner. Based on this, the motor 1202 of the first driving motor 12 is arranged on the side of the speed reducer 1201 away from the second end 112 of the first connecting plate 11. The output shaft of the motor 1202 is orthogonal to the output shaft of the speed reducer 1201. It should be noted that the output shaft of the speed reducer 1201 is the first output shaft 120 of the first driving motor 12.

[0161] In addition, it should be noted that the motor 1202 output shaft is orthogonal to the reducer 1201 output shaft. And the reducer 1201 is located between the first end 111 and the second end 112 of the first connecting plate 11, at the bending of the first connecting plate 11. That is, the first connecting plate 11 is arranged in a semi-enclosed manner around the reducer 1201. In this way, the first connecting plate 11, the reducer 1201 and the motor 1202 are arranged in a straight line. The overall structure is compact, and compared with the linear arrangement, the first driving mechanism 10 provided by the application occupies less space.

[0162] It should be noted that the second driving mechanism 20 and the third driving mechanism 30 provided by the application also adopt the same arrangement manner, and therefore also have the effects of compact structure and less space occupation, which will not be described here.

[0163] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A screen support, characterized in that The screen support comprises: a first driving mechanism comprising a first driving motor and a first adjusting mechanism; a part of the first adjusting mechanism is connected with a first output shaft of the first driving motor, another part is used for being connected with the screen, and the other part of the first adjusting mechanism can rotate relative to the part of the first adjusting mechanism with the first output shaft as an axis; a second driving mechanism comprising a second driving motor and a second adjusting mechanism; a part of the second adjusting mechanism is connected with a second output shaft of the second driving motor, another part is connected with the first driving mechanism, and the other part of the second adjusting mechanism can rotate relative to the part of the second adjusting mechanism with the second output shaft as an axis; and a third driving mechanism comprising a third driving motor and a third adjusting mechanism; a part of the third adjusting mechanism is connected with a third output shaft of the third driving motor, another part is connected with the second driving mechanism, and the other part of the third adjusting mechanism can rotate relative to the part of the third adjusting mechanism with the third output shaft as an axis; wherein the first output shaft, the second output shaft and the third output shaft are perpendicular to each other in pairs.

2. The screen support of claim 1, wherein, The screen support further comprises: a connecting shaft, one end of the connecting shaft is used for being connected with the screen; the first adjusting mechanism comprises: a first connecting plate, the first connecting plate has a first end and a second end which are perpendicular to each other, the first end is provided with a first through hole, and a part of the other end of the connecting shaft is inserted into the first through hole; the first output shaft is inserted into the first through hole; and a first friction pair, comprising: a first end cover, arranged in the first through hole and connected with the other end of the connecting shaft; a first friction gasket, arranged between the first connecting plate and the first end cover; a first external thread nut, arranged in the first through hole and coaxially arranged with the first end cover and threadedly connected with the first end cover; a first shaft sleeve, arranged between the first external thread nut and the first end cover, the first output shaft passes through the first end cover and is clamped with the first shaft sleeve; the second adjusting mechanism comprises: a second connecting plate, the second connecting plate has a third end and a fourth end which are perpendicular to each other, the third end is provided with a second through hole, and a part of the second end is inserted into the second through hole; the second output shaft is inserted into the second through hole; and a second friction pair, comprising: a second end cover, arranged in the second through hole and connected with the second end; a second friction gasket, arranged between the second connecting plate and the second end cover; a second external thread nut, arranged in the second through hole and coaxially arranged with the second end cover and threadedly connected with the second end cover; a second shaft sleeve, arranged between the second external thread nut and the second end cover, the second output shaft passes through the second end cover and is clamped with the second shaft sleeve; the third adjusting mechanism comprises: a third connecting plate, the third connecting plate is provided with a third through hole, and a part of the fourth end is inserted into the third through hole; the third output shaft is inserted into the third through hole; and A third friction pair is arranged between the third connecting plate and the third end cover. A third end cover is arranged in the third through hole and connected with the fourth end. A third friction pad is arranged between the third connecting plate and the third end cover. A third threaded nut is arranged in the third through hole, coaxially arranged with the third end cover and threadedly connected with the third end cover. A third shaft sleeve is arranged between the third threaded nut and the third end cover, the third output shaft passes through the third end cover and is arranged in the third shaft sleeve and is clamped with the third shaft sleeve.

3. The screen support of claim 2, wherein the first connecting plate is provided with a first abutting portion along an inner wall of the first through hole, and the first friction pad is arranged between the first end cover and the first abutting portion.

4. The screen support of claim 3, wherein the second connecting plate is provided with a second abutting portion along an inner wall of the second through hole, and the second friction pad is arranged between the second end cover and the second abutting portion. a peak output torque of the first drive motor is M m1 ; The static friction torque between the first end cover and the first shaft sleeve is a first internal static friction torque M in-J1 ; The static friction torque between the first end cap and the first friction washer is a first outer static friction torque M out-J1 ; M m1 , M in-J1 , M out-J1 satisfies: M m1 > M out-J1 , and M in-J1 > M out-J1 ; a peak output torque of the second drive motor is M m2 ; The static friction torque between the second end cover and the second shaft sleeve is a second internal static friction torque M in-J2 ; The static friction torque between the second end cap and the second friction washer is a second outer static friction torque M out-J2 ; M m2 , M in-J2 , M out-J2 satisfies: M m2 > M out-J2 , and M in-J2 > M out-J2 ; The peak output torque of the third drive motor is M m3 ; The static friction torque between the third end cover and the third shaft sleeve is a third internal static friction torque M in-j3 ; The static friction torque between the third end cover and the third friction pad is a third outer static friction torque M out-J3 ; M m3 , M in-J3 , M out-J3 satisfies: M m3 > M out-J3 , and M in-J3 > M out-J3 .

5. The screen support of claim 2, wherein the third connecting plate is provided with a third abutting portion along an inner wall of the third through hole, and the third friction pad is arranged between the third end cover and the third abutting portion. The first driving motor self-locking torque is M lock1 , M lock1 satisfies: M lock1 > M in-J1 ; The second driving motor self-locking torque is M kock2 , M lock2 satisfies: M lock2 >M in-J2 ; The third driving motor self-locking torque is M lock3 , M lock3 satisfies: M lock3 > M in-J3 .

6. The screen support of claim 2, wherein the first end cover comprises: a first bottom plate, the first bottom plate being provided with a first avoiding hole, the first avoiding hole being communicated with the first through hole; a first side plate, the first side plate being annular and coaxially arranged with the first through hole, an inner wall of the first side plate being provided with threads, and the first threaded nut being threadedly connected with the first side plate. The second end cover comprises: a second bottom plate, the second bottom plate being provided with a second avoiding hole, the second avoiding hole being communicated with the second through hole; a second side plate, the second side plate being annular and coaxially arranged with the second through hole, an inner wall of the second side plate being provided with threads, and the second threaded nut being threadedly connected with the second side plate. The third end cover comprises: a third bottom plate, the third bottom plate being provided with a third avoiding hole, the third avoiding hole being communicated with the third through hole; a third side plate, the third side plate being annular and coaxially arranged with the third through hole, an inner wall of the third side plate being provided with threads, and the third threaded nut being threadedly connected with the third side plate.

7. The screen support of claim 2, wherein the second end of the first connecting plate is provided with a first reinforcing rib. The fourth end of the second connecting plate is provided with a second reinforcing rib.

8. The screen support of claim 2, wherein the first driving motor is provided with a first limiting groove on a side close to the first end cover, the first limiting groove being circular arc-shaped, and an extension direction of the first limiting groove being the same as a rotation direction of the first output shaft of the first driving motor. The first end cover is provided with a first limiting block on a side close to the first driving motor, the first limiting block being arranged in the first limiting groove. ​ ​ ​ ​ ​ ​ ​ The second driving motor is provided with a second limiting groove near two sides of the second end cover, the second limiting groove is arc-shaped, and the extending direction of the second limiting groove is the same as the rotating direction of the second output shaft of the second driving motor; The second end cover is provided with a second limiting block near two sides of the second driving motor, and the second limiting block is located in the second limiting groove; The third driving motor is provided with a third limiting groove near three sides of the third end cover, the third limiting groove is arc-shaped, and the extending direction of the third limiting groove is the same as the rotating direction of the third output shaft of the third driving motor; The third end cover is provided with a third limiting block near three sides of the third driving motor, and the third limiting block is located in the third limiting groove.

9. An in-vehicle screen, characterized by, The vehicle-mounted screen further comprises: a screen body; a connecting rod, one end of which is connected with the screen body, and the other end of which is connected with the connecting shaft.

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