Rotary actuation device and display screen

Abstract

The application relates to the technical field of display devices, and discloses a rotary actuating device, a first connecting assembly comprises a first connecting piece and a second connecting piece in transmission connection, the first connecting piece is connected with a to-be-connected object; a first driving piece is connected with the second connecting piece through a first transmission assembly to sequentially drive the first connecting piece and the second connecting piece to rotate; the first driving piece is connected with a first circuit board; a displacement detection assembly is located on one side of the first connecting assembly, the displacement detection assembly is connected with the second connecting piece, if the to-be-connected object is actively rotated, the first connecting piece forms a relative displacement relative to the second connecting piece, the displacement detection assembly is used for detecting the relative displacement amount, the displacement detection assembly is connected with the first circuit board, and when the relative displacement amount is greater than a first limit value, the first driving piece drives the first connecting assembly to rotate through the first transmission assembly. The rotary actuating device and the display screen can realize automatic rotation and manual rotation simultaneously.

Description

Technical Field

[0001] This application relates to the field of display device technology, and in particular to rotary actuators and displays. Background Technology

[0002] As the automotive industry accelerates its move towards intelligence and personalization, consumers have increasingly stringent requirements for in-vehicle interactive experiences. Rotating car displays, with their unique advantages, have become a core feature for enhancing the driving experience and showcasing the technological sophistication of the vehicle, resulting in a continuously rising market demand. In the fiercely competitive mid-to-high-end vehicle market, they are key to breaking through the stalemate of homogenized configurations. Their dynamically adjustable features have made them an important consideration for many consumers when purchasing a car, and even a "powerful tool" for differentiating vehicle models. Currently, most mainstream car displays rely on built-in electric drive systems to rotate, which cannot adapt to a wider range of usage scenarios. Utility Model Content

[0003] This application primarily addresses the technical problem that existing displays can only rotate automatically and cannot adapt to a wider range of usage scenarios. It provides a rotary actuator and display screen that can simultaneously achieve both automatic and manual rotation.

[0004] To address the aforementioned technical problems, this application provides a rotary actuation device, wherein the rotary actuation device includes, A first connecting component, comprising a first connecting member and a second connecting member for transmission connection, wherein the first connecting member is connected to the object to be connected; A first driving member and a first transmission assembly, wherein the first driving member is connected to the second connecting member through the first transmission assembly, so as to drive the first connecting member and the second connecting member to rotate in sequence; A first circuit board, wherein the first driving component is connected to the first circuit board; A displacement detection component is located on one side of the first connecting component and is connected to the second connecting member. When the object to be connected rotates actively, the first connecting member forms a relative displacement with respect to the second connecting member. The displacement detection component is used to detect the amount of relative displacement. The displacement detection component is connected to the first circuit board. When the amount of relative displacement is greater than a first limit value, the first driving member drives the first connecting component to rotate through the first transmission component.

[0005] In one embodiment, the first connector includes a connecting body and a rotating arm. The connecting body is arranged along a first direction, and the rotating arm is connected to the connecting body. The rotating arm is arranged along a second direction, and rotates synchronously when the connecting body rotates. A first through hole is provided through the second connector along the first direction. The connecting body is at least partially located in the first through hole to form a mating connection. A first accommodating space is provided between the first connector and the second connector, and the displacement detection component is at least partially located in the first accommodating space.

[0006] In one possible implementation, the displacement detection component includes, A testing frame, wherein the testing frame is partially located within the first accommodating space, and a second through hole is provided through the testing frame along a third direction; A first elastic element is located inside the second through hole, and the first end of the first elastic element along the third direction abuts against the detection frame; A movable rod is disposed in the second through hole along the third direction. The movable rod abuts against the second end of the first elastic member along the third direction, and the movable rod abuts against the rotating arm under the drive of the first elastic member. A first sensor is disposed on the side of the moving rod along the third direction and away from the rotating arm, and the first sensor is used to detect the moving distance of the moving rod along the third direction.

[0007] In one possible embodiment, the rotary actuation device further includes, The housing assembly includes an upper housing and a lower housing, which are arranged sequentially along a first direction. The upper housing and the lower housing are connected to form a first receiving cavity within the housing assembly. The first connecting component, the first driving component, the first transmission component, the first circuit board, and the displacement detection component are all located within the first receiving cavity. The housing assembly also includes a bottom plate located at the bottom of the lower housing along the first direction, and the lower housing is connected to the bottom plate.

[0008] In one possible implementation, the first connection component further includes, A damper, wherein the second connecting member is connected to the lower housing via the damper; The first rotating component, the first connecting component is rotatably connected to the upper housing via the first rotating component; The second rotating member, the second connecting member is rotatably connected to the lower housing via the second rotating member; The second elastic element is provided on the outer sleeve of the first connector. The first connector abuts against the upper housing through the second elastic element to eliminate the axial gap between the first connector and the upper housing.

[0009] In one embodiment, the rotary actuation device further includes an angle detection component disposed between the housing assembly and the first connecting assembly to detect the rotation angle of the object to be connected relative to the housing assembly.

[0010] In one possible implementation, the angle detection component includes, A first angle sensor is connected to the lower housing. The first magnet, the first angle sensor and the first magnet are spaced apart along the first direction, and the first magnet is connected to the second connector.

[0011] In one possible implementation, the angle detection component further includes, A protective cover is provided over the first angle sensor and is connected to the lower housing to protect the first angle sensor.

[0012] In one possible implementation, the first transmission component includes, A first transmission component, wherein the first transmission component is connected to the first driving component in a transmission manner; The second transmission component is connected to the second connecting component via the first transmission component.

[0013] In another aspect, this application provides a display screen, wherein the display screen includes any of the rotary actuation devices described in Embodiment 1, and the display screen further includes, The second connecting component and the object to be connected are connected to the rotary actuation device via the second connecting component, and the object to be connected is a display component.

[0014] Compared to existing technologies, the rotary actuation device of this application includes an automatic rotation mode and a manual rotation mode. In the automatic rotation mode, an electronic device issues a command, and the first circuit board drives the first driving component to rotate, which in turn drives the first connecting component to rotate through the first transmission component. The first connecting component connects the object to be connected, and the object rotates synchronously. In the manual rotation mode, the user rotates the object to be connected, and the first connecting component rotates synchronously. The first connecting component has a relative displacement with respect to the second connecting component. The displacement detection component is used to detect the amount of relative displacement. The displacement detection component is connected to the first circuit board. When the amount of relative displacement is greater than a first threshold value, the first driving component drives the first connecting component to rotate through the first transmission component, thereby causing the object to be connected to rotate. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of a rotary drive device in Embodiment 1; Appendix Figure 2 This is a schematic diagram of a structure between the first connecting component and the displacement detection component in Embodiment 1; Appendix Figure 3 This is another structural diagram of the first connecting component and the displacement detection component in Embodiment 1; Appendix Figure 4 This is a cross-sectional view between the first connecting component and the displacement detection component in Embodiment 1; Appendix Figure 5 This is a schematic diagram of a display screen in Embodiment 2.

[0016] Explanation of the labels in the diagram: X, first direction; Y, second direction; Z, third direction; 10. Rotary actuation device; 100. First connecting assembly; 110. First connector; 111. Connecting body; 112. Rotating arm; 120. Second connector; 121. First through hole; 130. First receiving space; 140. Damper; 150. First rotating component; 160. Second rotating component; 170. Second elastic component; 200. First driving component; 300. First transmission assembly; 310. First transmission component; 320. Second transmission component; 400. First circuit board; 500, Displacement detection assembly; 510, Detection frame; 511, Second through hole; 520, First elastic element; 530, Moving rod; 540, First sensing element; 550, Cover plate; 560, First fixing element; 570, Second fixing element; 600. Housing assembly; 610. Upper housing; 620. Lower housing; 630. Base plate; 700, Angle detection component; 710, First angle sensor; 720, First magnet; 730, Fixing bracket; 740, Protective cover; 20. Object to be connected; 21. Second connecting component. Detailed Implementation

[0017] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] Existing technology has the technical problem that displays can only rotate automatically and cannot adapt to more usage scenarios.

[0019] Therefore, this application provides a rotary actuation device, wherein the rotary actuation device includes, A first connecting component, comprising a first connecting member and a second connecting member for transmission connection, wherein the first connecting member is connected to the object to be connected; A first driving member and a first transmission assembly, wherein the first driving member is connected to the second connecting member through the first transmission assembly, so as to drive the first connecting member and the second connecting member to rotate in sequence; A first circuit board, wherein the first driving component is connected to the first circuit board; A displacement detection component is located on one side of the first connecting component and is connected to the second connecting member. When the object to be connected rotates actively, the first connecting member forms a relative displacement with respect to the second connecting member. The displacement detection component is used to detect the amount of relative displacement. The displacement detection component is connected to the first circuit board. When the amount of relative displacement is greater than a first limit value, the first driving member drives the first connecting component to rotate through the first transmission component.

[0020] In another aspect, this application provides a display screen, wherein the display screen includes any of the rotary actuation devices described in Embodiment 1, and the display screen further includes, The second connecting component and the object to be connected are connected to the rotary actuation device via the second connecting component. The object to be connected is a display component. Example 1: In the current automotive industry, which is rapidly moving towards intelligence and personalization, consumers have increasingly stringent requirements for in-vehicle interactive experiences. Rotating car displays, with their unique advantages, have become a core feature for activating the driving experience and showcasing the technological sophistication of the vehicle, resulting in a continuously rising market demand. In the fiercely competitive mid-to-high-end vehicle market, they are key to breaking through the stalemate of homogenized configurations. Their dynamically adjustable characteristics have made them an important consideration for many consumers when purchasing a car, and even a "powerful tool" for differentiating vehicle models. Currently, most mainstream car displays rely on built-in electric drive systems to rotate, which cannot adapt to a wide range of usage scenarios. In general use cases, some users find that manually driving the display to rotate it to their desired angle is more effective.

[0021] Please refer to the attached document. Figure 1 To be continued Figure 5 As shown, in this embodiment, the first direction X refers to the height direction of the rotary actuator 10, that is, the direction from top to bottom or from bottom to top. In this embodiment, the first connecting component 100 is disposed lower than the second connecting component 21, and the second connecting component 21 is disposed higher than the first connecting component 100. The second direction Y refers to the length direction of the rotary actuator 10, that is, the direction from left to right or from right to left. In this embodiment, the first driving member 200 is disposed to the left of the first circuit board 400, and the first circuit board 400 is disposed to the right of the first driving member 200. In this embodiment, the third direction Z is the width direction of the rotary actuator 10, that is, the direction from front to back or from back to front. In this embodiment, the moving rod 530 is disposed rearward relative to the detection frame 510, and the detection frame 510 is disposed forward relative to the moving rod 530.

[0022] Appendix Figure 1 This is a schematic diagram of one structure of the rotary drive device in Embodiment 1. Please refer to the attached diagram. Figure 1 As shown, the rotary actuation device 10 of this embodiment includes a first connecting component 100, which is connected to the object to be connected 20 and the first transmission component 300, respectively, to transmit power to the object to be connected 20 and realize the rotation of the object to be connected 20. In this embodiment, the object to be connected 20 is a display component. In addition to the display component, the object to be connected 20 can also be other devices that need to achieve rotation. In this embodiment, the object to be connected 20 is not limited to a display component.

[0023] Furthermore, the first connecting assembly 100 includes a first connecting member 110 and a second connecting member 120 for transmission connection. The transmission method between the first connecting member 110 and the second connecting member 120 will be further explained in the following figures. However, it should be noted that the first connecting member 110 and the second connecting member 120 will have relative displacement during transmission. In this embodiment, the relative displacement is the relative rotation between the first connecting member 110 and the second connecting member 120. The first connecting member 110 is connected to the object to be connected 20, and the second connecting member 120 is connected to the first transmission assembly 300.

[0024] In one embodiment, the first connector 110 is connected to the object to be connected 20 via the second connector 21.

[0025] Please refer to the attached document. Figure 1 As shown, the rotary actuator 10 of this embodiment includes a first circuit board 400, a first transmission assembly 300, and a first drive member 200. The first circuit board 400 is connected to the first drive member 200. The first circuit board 400 is used to receive drive signals and drive the first drive member 200 to rotate. The first drive member 200 is connected to the second connector 120 through the first transmission assembly 300 to transmit the rotational motion to the second connector 120, so as to realize the rotation of the second connector 120. Since the first connector 110 and the second connector 120 are connected by transmission, the first connector 110 rotates further.

[0026] In this embodiment, a first limit value is recorded in the first circuit board 400. After the displacement detection component 500 detects the relative displacement, it is sent to the first circuit board 400 and compared with the first limit value in the first circuit board 400 to further determine whether the movement is manually driven rotation or automatically driven rotation.

[0027] Please refer to the attached document. Figure 1 As shown, the rotation actuation device 10 in this embodiment further includes a displacement detection component 500, which is located on one side of the first connecting component 100 and connected to the second connecting member 120. The rotation driving method in this embodiment includes manual drive rotation and automatic drive rotation. The difference between manual and automatic drive rotation lies only in the way the drive signal is provided. In manual drive rotation, the drive signal is provided by the user rotating the object to be connected 20, while in automatic drive rotation, the drive signal is provided through a touch-screen electronic device. In the automatic drive rotation mode of this embodiment, the user uses a touch-screen electronic device, which provides a drive signal to the first circuit board 400. The first circuit board 400 drives the first driving member 200 to rotate, and the rotation is transmitted to the first connecting component 100 through the first transmission component 300, thereby achieving the rotation of the object to be connected 20. In the manual drive rotation mode of this embodiment, the user rotates the object to be connected 20, and the first connector 110 rotates synchronously. The first connector 110 forms a relative displacement with respect to the second connector 120. The displacement detection component 500 is used to detect the amount of relative displacement. The displacement detection component 500 is connected to the first circuit board 400. When the amount of relative displacement is greater than the first limit value, the first drive component 200 drives the first connector 100 to rotate through the first transmission component 300, so as to form the rotation of the object to be connected 20.

[0028] Please refer to the attached document. Figure 1As shown, the rotary actuation device 10 of this embodiment further includes a housing assembly 600. The housing assembly 600 includes an upper housing 610 and a lower housing 620 arranged sequentially along a first direction X. The upper housing 610 has an opening at its bottom along the first direction X, and the lower housing 620 has an opening at its top along the first direction X. The upper housing 610 and the lower housing 620 are connected to close the openings on the upper housing 610 and the lower housing 620, forming a first receiving cavity within the housing assembly 600. The first connecting assembly 100, the first driving member 200, the first transmission assembly 300, the first circuit board 400, and the displacement detection assembly 500 are all located within the first receiving cavity. The housing assembly 600 also includes a base plate 630, which is located at the bottom of the lower housing 620 along the first direction X. The lower housing 620 is connected to the base plate 630, and the base plate 630 facilitates the connection of the rotary actuation device 10 to other components.

[0029] Please refer to the attached document. Figure 1 As shown, the first connecting assembly 100 in this embodiment further includes a damper 140. The second connecting member 120 is connected to the lower housing 620 through the damper 140, and the damper 140 provides frictional resistance to the second connecting member 120. The first connecting assembly 100 also includes a first rotating member 150. The first connecting member 110 is rotatably connected to the upper housing 610 through the first rotating member 150. The upper housing 610 is not shown in this figure, but will be further shown in subsequent figures. The first connecting assembly 100 also includes a second rotating member 160. The second connecting member 120 is rotatably connected to the lower housing 620 through the second rotating member 160. The first connecting assembly 100 in this embodiment also includes a first rotating member 150. The first connecting member 110 is rotatably connected to the upper housing 610 through the first rotating member 150. The first connecting assembly 100 in this embodiment further includes a second elastic element 170 and a first gasket. The first connecting member 110 is covered with the second elastic element 170 and the first gasket. The second elastic element 170 and the first gasket are stacked. The first connecting member 110 abuts against the upper housing 610 through the second elastic element 170 to eliminate the axial gap between the first connecting member 110 and the upper housing 610.

[0030] Please refer to the attached document. Figure 1 As shown, the rotary actuator 10 of this embodiment also includes an angle detection component 700, which is disposed between the housing component 600 and the first connecting component 100 to detect the rotation angle of the object to be connected 20 relative to the housing component 600.

[0031] In one embodiment, the angle detection assembly 700 further includes a first angle sensor 710 and a first magnet 720. The first magnet 720 generates a variable magnetic field (e.g., magnetic field direction, intensity, and distribution) as the first angle sensor 710 rotates. The first angle sensor 710 senses the change in the magnetic field and converts it into an electrical signal, which is then analyzed by an algorithm to obtain the rotation angle. Between the first angle sensor 710 and the first magnet 720, the first angle sensor 710 remains stationary while the magnet rotates. The first angle sensor 710 and the first magnet 720 are spaced apart along a first direction X. The first angle sensor 710 is connected to the lower housing 620, and the first magnet 720 is connected to the second connector 120. The angle detection assembly 700 also includes a protective cover 740, which covers the first angle sensor 710 and is connected to the lower housing 620 to protect the first angle sensor 710.

[0032] Furthermore, the first magnet 720 is fixed to the second connector 120 by a fixing bracket 730.

[0033] Please refer to the attached document. Figure 1 As shown, the first transmission component 300 in this embodiment includes a first transmission member 310 and a second transmission member 320. The first transmission member 310 is connected to the first driving member 200 in a transmission manner, and the first transmission member 310 is connected to the second connecting member 120 through the second transmission member 320.

[0034] In one embodiment, the transmission between the first transmission components 300 is a worm gear transmission, meaning that only the first transmission component 300 can drive the second connecting member 120 to rotate, but the second connecting member 120 cannot drive the first transmission component 300 to rotate.

[0035] Appendix Figure 2 This is a schematic diagram of a structure between the first connecting component 100 and the displacement detection component 500 in Embodiment 1, with attached... Figure 3 This is another structural schematic diagram of the first connecting component 100 and the displacement detection component 500 in Embodiment 1, attached. Figure 4 This is a cross-sectional view of the first connecting component 100 and the displacement detection component 500 in Embodiment 1. Please refer to the attached diagram. Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, the first connecting component 100 in this embodiment includes a first connecting member 110 and a second connecting member 120. The first connecting member 110 and the second connecting member 120 are connected in a transmission manner. The first connecting member 110 and the second connecting member 120 are connected by a shaft hole. The shaft hole connection between the first connecting member 110 and the second connecting member 120 can not only realize the transmission of power, but also cause relative displacement during transmission.

[0036] The first connecting member 110 includes a connecting body 111 and a rotating arm 112. The connecting body 111 is arranged along a first direction X and is a shaft-like part. Rotating arms 112 are provided at both ends of the connecting body 111 along a second direction Y. The rotating arms 112 are connected to the connecting body 111, and rotate synchronously with the connecting body 111. The second connecting member 120 has a first through hole 121 extending along the first direction X. The cross-section of the first through hole 121 is circular. The connecting body 111 is at least partially located within the first through hole 121 to form a mating connection. In this embodiment, the fit between the connecting body 111 and the first through hole 121 is an interference fit. The first connecting member 110 and the second connecting member 120 have a receiving space, and the movement detection component is at least partially located within the first receiving space 130.

[0037] The displacement detection assembly 500 includes a detection frame 510 and a cover plate 550. The detection frame 510 is arranged along the second direction Y and is located on one side of the first connecting assembly 100 along the first direction X. The detection frame 510 is partially located within the first accommodating space 130. The detection frame 510 is connected to the second connecting member 120 through the second fixing member 570 to achieve synchronous movement between the detection frame 510 and the second connecting member 120. The detection frame 510 is provided with a second through hole 511 through the third direction Z. The cover plate 550 is provided on one side of the detection frame 510 along the second direction Y. The cover plate 550 is connected to the detection frame 510 through the first fixing member 560 and is located on the side of the detection frame 510 away from the first connecting member 110 to achieve closure of the second through hole 511 at one end along the third direction Z. The displacement detection assembly 500 further includes a first elastic element 520 and a moving rod 530. Both the first elastic element 520 and the moving rod 530 are arranged along a third direction Z. The first elastic element 520 is located inside the second through hole 511. The first end of the first elastic element 520 along the third direction Z abuts against the detection frame 510 to generate a driving force. The moving rod 530 is arranged inside the second through hole 511. The first elastic element 520 is sleeved on the outside of the moving rod 530. The moving rod 530 abuts against the second end of the first elastic element 520 along the third direction Z, and the moving rod 530 abuts against the rotating arm 112 under the drive of the first elastic element 520. The displacement detection assembly 500 also includes a first sensor 540. The first sensor 540 is arranged on the side of the moving rod 530 along the third direction Z and away from the rotating arm 112. The first sensor 540 is used to detect the moving distance of the moving rod 530 along the third direction Z.

[0038] In the automatic rotation mode of this embodiment, the user controls the electronic device via touch. The electronic device sends a drive signal to the first circuit board 400, which drives the first driving member 200 to rotate. The rotation is then transmitted to the second connecting member 120 via the first transmission assembly 300. The displacement detection assembly 500 moves synchronously with the second connecting member 120, and the first connecting member 110 rotates synchronously. However, under the drive of the first transmission assembly 300, a relative displacement is formed between the first connecting member 110 and the second connecting member 120. The relative displacement refers to the rotation speed between the first connecting member 110 and the second connecting member 120 not exceeding that of the second connecting member 120. The two parts are aligned, thus forming relative movement. However, in the automatic drive rotation mode, the inertial force of the first drive member 200 during transient drive is small. Therefore, the displacement between the first connector 110 and the second connector 120 is small, and the movement distance of the moving rod 530 along the third direction Z is also small. After the relative displacement is formed between the first connector 110 and the second connector 120, the rotating arm 112 drives the moving rod 530 to move along the third direction Z. The first sensor is used to detect the amount of movement. In the automatic drive rotation mode, the displacement of the moving rod 530 along the third direction Z is less than the first limit value, so the manual drive rotation mode is not triggered.

[0039] In the manual drive rotation mode of this embodiment, the user rotates the object to be connected 20, and the first connecting member 110 rotates synchronously. At this time, due to the action of the first transmission component 300 and the damper 140, the second connecting member 120 will not rotate. The user's pushing force is continuous. When the pushing force reaches a certain threshold, the first connecting member 110 and the second connecting member 120 move inertially. In the manual drive rotation mode, the pushing force is continuous, and the second connecting member 120 is in a stopped rotating state. Therefore, the displacement between the first connecting member 110 and the second connecting member 120 is large, so the moving rod 530 moves a large distance along the third direction Z. After the relative displacement is formed between the first connecting member 110 and the second connecting member 120, the rotating arm 112 drives the moving rod 530 to move along the third direction Z. The first sensor is used to detect the amount of movement. At this time, the displacement of the moving rod 530 along the third direction Z is less than the first threshold value, thus triggering the manual drive rotation mode.

[0040] Example 2: Appendix Figure 5 This is a schematic diagram of one structure of the display screen in Embodiment 2. Please refer to the attached diagram. Figure 5 As shown, the display screen of this embodiment includes the rotation actuation device 10 of embodiment 1. The display screen also includes a second connecting component 21 and a device to be connected 20. The rotation actuation device 10 is connected to the device to be connected 20 through the second connecting component 21. The device to be connected 20 is a display component.

[0041] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotary actuation device, characterized in that, The rotary actuator includes, A first connecting assembly, comprising a first connecting member and a second connecting member for transmission connection, wherein the first connecting member is connected to the object to be connected; A first driving member and a first transmission assembly, wherein the first driving member is connected to the second connecting member through the first transmission assembly, so as to drive the first connecting member and the second connecting member to rotate in sequence; A first circuit board, wherein the first driving component is connected to the first circuit board; A displacement detection component is located on one side of the first connecting component and is connected to the second connecting member. When the object to be connected rotates actively, the first connecting member forms a relative displacement with respect to the second connecting member. The displacement detection component is used to detect the amount of relative displacement. The displacement detection component is connected to the first circuit board. When the amount of relative displacement is greater than a first limit value, the first driving member drives the first connecting component to rotate through the first transmission component.

2. The rotary actuation device according to claim 1, characterized in that, The first connector includes a connecting body and a rotating arm. The connecting body is arranged along a first direction, and the rotating arm is connected to the connecting body. The rotating arm is arranged along a second direction, and rotates synchronously when the connecting body rotates. The second connector has a first through hole through it along the first direction. The connecting body is at least partially located in the first through hole to form a mating connection. The first connector and the second connector have a first accommodating space, and the displacement detection component is at least partially located in the first accommodating space.

3. The rotary actuation device according to claim 2, characterized in that, The displacement detection component includes, A testing frame, wherein the testing frame is partially located within the first accommodating space, and a second through hole is provided through the testing frame along a third direction; A first elastic element is located inside the second through hole, and the first end of the first elastic element along the third direction abuts against the detection frame; A movable rod is disposed in the second through hole along the third direction. The movable rod abuts against the second end of the first elastic member along the third direction, and the movable rod abuts against the rotating arm under the drive of the first elastic member. A first sensor is disposed on the side of the moving rod along the third direction and away from the rotating arm, and the first sensor is used to detect the moving distance of the moving rod along the third direction.

4. The rotary actuation device according to claim 1, characterized in that, The rotary actuator also includes, The housing assembly includes an upper housing and a lower housing, which are arranged sequentially along a first direction. The upper housing and the lower housing are connected to form a first receiving cavity within the housing assembly. The first connecting component, the first driving component, the first transmission component, the first circuit board, and the displacement detection component are all located within the first receiving cavity. The housing assembly also includes a bottom plate located at the bottom of the lower housing along the first direction, and the lower housing is connected to the bottom plate.

5. The rotary actuation device according to claim 4, characterized in that, The first connection component also includes, A damper, wherein the second connecting member is connected to the lower housing via the damper; The first rotating component, the first connecting component is rotatably connected to the upper housing via the first rotating component; The second rotating member, the second connecting member is rotatably connected to the lower housing via the second rotating member; The second elastic element is provided on the outer sleeve of the first connector. The first connector abuts against the upper housing through the second elastic element to eliminate the axial gap between the first connector and the upper housing.

6. The rotary actuation device according to claim 4, characterized in that, The rotary actuation device further includes an angle detection component, which is disposed between the housing assembly and the first connecting assembly to detect the rotation angle of the object to be connected relative to the housing assembly.

7. The rotary actuation device according to claim 6, characterized in that, The angle detection component includes, A first angle sensor is connected to the lower housing. The first magnet, the first angle sensor and the first magnet are spaced apart along the first direction, and the first magnet is connected to the second connector.

8. The rotary actuation device according to claim 7, characterized in that, The angle detection component also includes, A protective cover is provided over the first angle sensor and is connected to the lower housing to protect the first angle sensor.

9. The rotary actuation device according to claim 1, characterized in that, The first transmission component includes, A first transmission component, wherein the first transmission component is connected to the first driving component in a transmission manner; The second transmission component is connected to the second connecting component via the first transmission component.

10. A display screen, characterized in that, The display screen includes the rotary actuation device according to any one of claims 1 to 9, and the display screen further includes... The second connecting component and the object to be connected are connected to the rotary actuation device via the second connecting component, wherein the object to be connected is a display component.

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