CN114815129A

CN114815129A - Rotation driving device and terminal equipment

Info

Publication number: CN114815129A
Application number: CN202210324110.8A
Authority: CN
Inventors: 黄桂平
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-29

Abstract

The invention relates to the technical field of camera equipment, and particularly discloses a rotary driving device and terminal equipment. The rotary driving device comprises a mounting bracket, a first magnet and a second magnet, wherein the mounting bracket is used for mounting a light reflecting module or a camera module; the mounting bracket is rotatably connected to the rotating bracket; the rotating bracket is rotatably connected to the shell body, and two second magnets with opposite polarities are arranged on the second side surface of the shell body at intervals; the driving module is fixedly arranged with the rotating support and comprises a first coil and a second coil, and pulse current is introduced into the first coil and the second coil respectively to change the orientation of the light reflecting module or the camera module. Through the drive module to the about rotation of installing support, runner assembly and casing body, can increase the shooting scope of equipment, reduce and shoot the dead angle, also reduce mobile device itself and obtain the full-face shooting image of being shot the thing, improve the use experience and the human-computer interaction experience of equipment.

Description

Rotation driving device and terminal equipment

Technical Field

The application relates to the technical field of camera equipment, in particular to a rotary driving device and terminal equipment.

Background

At present, people can realize human-computer interaction by shooting contents through equipment, for example, when the equipment such as a family education machine and a tablet is used for shooting contents, a camera of the equipment is generally required to be moved and face to a shot object until a shooting area of the camera covers the shot object, so that a full-view shot image of the shot object is obtained.

However, when the shot objects with different sizes need to be continuously shot for multiple times, the distance and the orientation angle between the device and the shot objects need to be repeatedly moved and adjusted, so that the use experience and the human-computer interaction experience of the device are poor. If a motor driving structure is arranged, a complex coil structure and an arrangement structure of a plurality of magnets are required to be arranged, and the cost is high.

Disclosure of Invention

The embodiment of the invention aims to: provided are a rotation driving device and a terminal device, which can solve the problem that shooting is performed by moving and adjusting the setting angle and the setting position of the device in the prior art.

In order to achieve the purpose, the following technical scheme is adopted in the application:

in one aspect, there is provided a rotary drive apparatus comprising:

the mounting bracket is used for mounting the light reflecting module or the camera module, and two first magnets with opposite polarities are arranged on the first side surface of the mounting bracket at intervals;

the mounting bracket is rotatably connected to the rotating bracket;

the rotating bracket is rotatably connected to the rotating bracket, and two second magnets with opposite polarities are arranged on the second side surface of the shell body at intervals;

the driving module is fixedly arranged with the rotating support and comprises a first coil and a second coil, pulse current is introduced into the first coil and the second coil respectively, so that the first coil forms a magnetic pole to attract one of the first magnets to drive the mounting support to rotate on a first rotating plane relative to the rotating support, and the second coil forms a magnetic pole to attract one of the second magnets to drive the rotating support to rotate on a second rotating plane relative to the shell body, and therefore the orientation of the reflecting module or the camera module is changed.

As a preferred embodiment of the rotation driving device, a plane of the first coil is parallel to the first side surface, and a plane of the second coil is parallel to the second side surface.

As a preferable mode of the rotation driving device, the first side surface and the second side surface are vertically arranged so that the first rotation plane and the second rotation plane are vertically arranged.

As a preferable scheme of the rotation driving device, the rotation driving device further comprises an angle sensing assembly arranged on the driving module, wherein the angle sensing assembly is used for detecting the rotation angle of the mounting bracket relative to the rotating bracket and the rotation angle of the rotating bracket relative to the shell body.

As a preferable scheme of the rotation driving device, the angle sensing assembly includes a hall sensor and a third magnet, the hall sensor is fixed to the rotating bracket, and the third magnet is respectively fixed to the mounting bracket and the housing body.

As a preferable scheme of the rotation driving device, the driving module further includes a flexible circuit board fixedly disposed on the rotating bracket, and the flexible circuit board is electrically connected to the first coil, the second coil, and the hall sensor.

As a preferable scheme of the rotation driving device, the driving module further includes a coil support for fixing the first coil, the second coil, and the flexible circuit board, and the coil support is fixed to the rotating support.

As a preferred scheme of the rotary driving device, the housing body encloses to form an accommodating cavity, the accommodating cavity is used for accommodating the mounting bracket, the rotating bracket and the driving module, and a slot is formed in the cavity wall of the accommodating cavity and used for leading in a flat cable of the flexible circuit board.

As a preferable scheme of the rotary driving device, the mounting bracket is concavely provided with a first mounting groove and a second mounting groove, the first mounting groove is used for mounting the first magnet, the second mounting groove is used for mounting the third magnet, and the second mounting groove is arranged between the two first mounting grooves.

As a preferable scheme of the rotary driving device, a third mounting groove and a fourth mounting groove are concavely formed in the housing body, the third mounting groove is used for mounting the second magnet, the fourth mounting groove is used for mounting the third magnet, and the fourth mounting groove is arranged between the two third mounting grooves.

As a preferable scheme of the rotary driving device, the rotary driving device further comprises a magnetic isolation plate, the magnetic isolation plate is fixedly arranged on the mounting bracket and the shell body, the first magnet and the third magnet are arranged between the magnetic isolation plate and the mounting bracket, and the second magnet and the third magnet are arranged between the magnetic isolation plate and the shell body.

As a preferable mode of the rotation driving device, the rotation driving device further comprises a rotating shaft part, and the mounting bracket is rotatably connected with the rotating bracket through the rotating shaft part;

and/or the rotating bracket is rotatably connected with the shell body through the rotating shaft part.

As a preferable mode of the rotation driving device, the rotation shaft portion is detachably connected to the rotation bracket, and/or the rotation shaft portion is detachably connected to the housing body.

As a preferable scheme of the rotary driving device, the rotary shaft portion is convexly provided with an arc-shaped column, the mounting bracket and/or the rotary bracket is provided with an arc-shaped groove, and the arc-shaped column is rotatably connected with the arc-shaped groove.

As a preferred scheme of the rotary driving device, the rotating shaft portion is provided with a clamping hole, the rotating bracket and/or the shell body are/is convexly provided with a clamping column, and the clamping column is detachably connected with the clamping hole.

As a preferred scheme of the rotation driving device, the rotation bracket is sleeved on the mounting bracket, and the housing body is sleeved on the rotation bracket.

On the other hand, the terminal equipment comprises an equipment body and the rotary driving device, wherein a driving module of the rotary driving device is in communication connection with the equipment body, and a reflecting module or a camera module is installed on a mounting bracket of the rotary driving device.

The beneficial effect of this application does:

the reflection module or the camera module is installed by arranging the installation bracket, and the installation bracket can be rotationally connected to the rotating bracket which can be rotationally connected to the shell body, so that the installation bracket can also be rotationally connected relative to the shell body. Two first magnets with opposite polarities are arranged on the first side face of the mounting support at intervals, two second magnets with opposite polarities are arranged on the second side face of the shell body at intervals, a driving module is fixedly arranged on the rotating support and comprises a first coil and a second coil. Pulse current is respectively led into the first coil and the second coil, according to the ampere rule and the principle that like poles repel and opposite poles attract among the magnets, the first coil can form magnetic poles to attract one of the first magnets, and the second coil also forms magnetic poles to attract one of the second magnets. Also according to newton's third law (force and reaction), a first magnet of different polarity from the first coil can be attracted to move by the first coil, and a second magnet of different polarity from the second coil can also be attracted to move by the second coil.

That is to say, the drive module can order about the rotation support at the relative first coil place of installing support at first magnet place and rotate at first rotation plane, also can order about the casing body at the relative second magnet place of rotation support at second coil place and rotate at second rotation plane, make reflection of light module or camera module can adjust the orientation with first rotation direction stack second rotation direction, thereby increase the shooting scope of equipment, reduce and shoot the dead angle, also reduce mobile device itself and obtain the full-face shooting image of being shot the thing, improve the use experience and the human-computer interaction experience of equipment.

Moreover, due to the fact that the pulse current is introduced into the first coil and the second coil, the first coil and the second coil can generate angular displacement and forward and reverse rotation corresponding to the pulse current according to the pulse number and the pulse frequency of the pulse current, the rotation direction and the hovering position of the mounting support can be accurately controlled, and the light reflecting module or the camera module can be conveniently and stably oriented to the designated shooting area.

Meanwhile, only the corresponding first coil and first magnet and the corresponding second coil and second magnet are arranged, so that the design cost and the manufacturing cost can be reduced.

Drawings

The present application will be described in further detail below with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural diagram of a rotation driving apparatus according to an embodiment of the present disclosure.

Fig. 2 is a schematic view of an application scenario of a terminal device according to an embodiment of the present application.

Fig. 3 is a schematic view of an application scenario of a terminal device according to another embodiment of the present application.

Fig. 4 is an exploded schematic view of a rotation driving device according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a housing body according to an embodiment of the present application.

Fig. 6 is a partial schematic structural diagram of a rotation driving device according to an embodiment of the present disclosure.

In the figure:

1. a rotation driving device;

11. mounting a bracket; 111. a first side surface; 112. a first mounting groove; 113. a second mounting groove;

12. rotating the bracket; 13. a housing body; 131. a second side surface; 132. an accommodating chamber; 133. a wire slot; 134. a third mounting groove; 135. a fourth mounting groove;

14. a drive module; 141. a first coil; 142. a second coil; 143. a flexible circuit board; 144. a coil support; 151. a first magnet; 152. a second magnet;

16. an angle sensing assembly; 161. a Hall sensor; 162. a third magnet; 17. a magnetic shield plate;

18. a rotating shaft part; 181. an arc-shaped column; 182. an arc-shaped slot; 183. a clamping hole; 184. clamping the column;

2. an apparatus body; 21. a light reflecting module; 22. and a camera module.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present application clearer, the following describes technical solutions of embodiments of the present application in further detail, and it is obvious that the described embodiments are only a part of embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to solve the problem that shooting needs to be performed by moving and adjusting the setting angle and setting position of the device in the prior art, as shown in fig. 1, the present embodiment provides a rotation driving apparatus 1, including:

the mounting bracket 11 is used for mounting the light reflecting module 21 or the camera module 22, and two first magnets 151 with opposite polarities are arranged on the first side surface 111 of the mounting bracket 11 at intervals;

the rotating bracket 12 is rotatably connected with the mounting bracket 11;

the shell body 13 is rotatably connected with the rotating bracket 12, and the second side 131 of the shell body 13 is provided with two second magnets 152 with opposite polarities at intervals;

and the driving module 14 is fixedly arranged with the rotating bracket 12, the driving module 14 includes a first coil 141 and a second coil 142, and current is respectively applied to the first coil 141 and the second coil 142, so that the first coil 141 forms a magnetic pole to attract one of the first magnets 151, and the second coil 142 forms a magnetic pole to attract one of the second magnets 152, so as to drive the mounting bracket 11 to rotate on the first rotating plane relative to the rotating bracket 12, and drive the rotating bracket 12 to rotate on the second rotating plane relative to the housing body 13, so as to change the orientation of the light reflecting module 21 or the camera module 22.

It should be noted that the first rotation direction in this embodiment refers to the clockwise direction and the counterclockwise direction of one rotation plane, and the second rotation direction refers to the clockwise direction and the counterclockwise direction of the other rotation plane.

The reflection module 21 or the camera module 22 is installed by arranging the installation bracket 11, and the installation bracket 11 can also be rotationally connected relative to the shell body 13 because the rotating bracket 12 is rotationally connected with the installation bracket 11 and the shell body 13 is rotationally connected with the rotating bracket 12. Two first magnets 151 with opposite polarities are arranged on the first side surface 111 of the mounting bracket 11 at intervals, two second magnets 152 with opposite polarities are arranged on the second side surface 131 of the shell body 13 at intervals, the driving module 14 is fixedly arranged on the rotating bracket 12, and the driving module 14 comprises a first coil 141 and a second coil 142. The first coil 141 and the second coil 142 are respectively supplied with current, so that the first coil 141 can form a magnetic pole to attract one of the first magnets 151 and the second coil 142 also forms a magnetic pole to attract one of the second magnets 152 according to the principle of the ampere rule and like poles between the magnets repel each other and attract each other oppositely. Also according to newton's third law (acting force and reacting force), the first magnet 151 having a different magnetic pole from the first coil 141 can be attracted to the first coil 141, and the second magnet 152 having a different magnetic pole from the second coil 142 can also be attracted to the second coil 142.

That is to say, the driving module 14 can drive the mounting bracket 11 where the first magnet 151 is located to rotate on the first rotation plane relative to the rotation bracket 12 where the first coil 141 is located, and can also drive the rotation bracket 12 where the second coil 142 is located to rotate on the second rotation plane relative to the housing body 13 where the second magnet 152 is located, so that the orientation of the light reflecting module 21 or the camera module 22 can be adjusted by superimposing the first rotation direction and the second rotation direction, thereby increasing the shooting range of the device, reducing the shooting dead angle, and also reducing the possibility that the mobile device itself obtains a full-view shot image of a shot object, thereby improving the use experience and the human-computer interaction experience of the device.

Moreover, due to the pulse current passing through the first coil 141 and the second coil 142, the first coil 141 and the second coil 142 can generate angular displacement and forward and reverse rotation corresponding to the pulse current according to the pulse number and the pulse frequency of the pulse current, the rotation direction and the hovering position of the mounting bracket 11 can be accurately controlled, and the light reflecting module 21 or the camera module 22 can be conveniently and stably oriented to a designated shooting area.

Meanwhile, providing only the corresponding first coil 141 and first magnet 151 and the corresponding second coil 142 and second magnet 152 may reduce design costs and manufacturing costs.

To explain the orientation control process of the rotary drive device 1 more specifically, as shown in fig. 2 and 3, the apparatus stands on the shooting plane, on which the rotary drive device 1 of the present application is mounted. When the driving module 14 drives the mounting bracket 11 to rotate relative to the rotating bracket 12 by the forward and reverse deflection amount in the first rotating plane and the forward and reverse deflection amount in the second rotating plane relative to the housing body 13 between the rotations, the orientation angle of the light reflecting module 21 or the shooting module on the mounting bracket 11 relative to the shooting plane is changed (the shooting area shown in fig. 2 is moved to the shooting area shown in fig. 3), and thus the shooting area of the equipment on the shooting plane is changed. The shooting area can be directly changed by rotating the driving device 1, so that the movement of the equipment is reduced, and the use experience of a user is improved. If the height of the device is insufficient, so that the object on the shooting plane cannot be shot completely, the edge of the shooting area of the device and the edge of the object can be overlapped through the rotation driving device 1 to obtain a shot image, then the direction of the reflection module 21 or the camera module 22 is gradually changed until the shooting area of the device moves to other edges of the object to obtain other shot images, and finally the multiple shot images are overlapped to obtain a full-looking image of the object, so that the movement of the device can be reduced.

For the driving implementation of the driving module 14, specifically, referring to fig. 4, the driving module 14 includes a first coil 141 and a second coil 142, and respectively supplies current to the first coil 141 and the second coil 142, as can be known from the ampere rule (right-hand spiral rule), the first coil 141 or the second coil 142 is held by the right hand, so that the four fingers point to the direction of the current, and the end pointed by the thumb is the N pole of the energized solenoid. Since the first side 111 of the mounting bracket 11 is provided with two first magnets 151 with opposite polarities at intervals, and the plane of the first coil 141 is parallel to the first side 111 of the mounting bracket 11, the magnetic pole direction of the first coil 141 is parallel to the magnetic pole direction of the first magnets 151. Assuming that one of the first magnets 151 is N-pole on the side close to the first coil 141, and the other first magnet 151 is S-pole on the side close to the first coil 141, when the side close to the first magnet 151 of the first coil 141 is N-pole, the first coil 141 will attract the first magnet 151 which is S-pole on the side close to the first coil 141, and also repel the first magnet 151 which is N-pole on the side close to the first coil 141, and the first coil 141 is fixedly disposed with the rotating bracket 12, and the first magnet 151 is fixedly disposed with the mounting bracket 11, so that the mounting bracket 11 and the rotating bracket 12 can be driven to rotate by the first coil 141 and the first magnet 151.

Similarly, the plane of the second coil 142 is parallel to the second side 131, and the magnetic pole direction of the second coil 142 is also parallel to the magnetic pole direction of the second magnet 152. The two second magnets 152 with opposite polarities are disposed at an interval on the second side 131 of the housing body 13, and when the second coil 142 is energized to form a magnet, the magnet is attracted to one of the second magnets 152 and repelled to the other second magnet 152, so that the rotating bracket 12 where the first coil 141 is located and the housing body 13 where the second magnet 152 is located can be driven to rotate mutually.

When currents with different ampere magnitudes, different directions and different energization durations are introduced into the first coil 141 and the second coil 142, the rotation angles and the rotation directions of the mounting bracket 11 and the rotating bracket 12 can be controlled respectively, and after the rotations of the mounting bracket 11 and the rotating bracket 12 are superposed, the orientation of the light reflecting module 21 or the camera module 22 can be obtained, so that the shooting angle and the shooting area of the light reflecting module 21 or the camera module 22 can be controlled.

Further, the first side surface 111 and the second side surface 131 are vertically arranged, so that the first rotation plane and the second rotation plane are vertically arranged, that is, the light reflecting module 21 or the camera module 22 can realize rotation adjustment with 4 degrees of freedom, and the maximization of the shooting angle can be ensured.

Further, referring to fig. 4, the rotary driving device 1 of the present application further includes an angle sensing component 16 disposed on the driving module 14, and the angle sensing component 16 can be used for detecting a rotation angle of the mounting bracket 11 relative to the rotating bracket 12 and a rotation angle of the rotating bracket 12 relative to the housing body 13. By detecting the rotation angle of the mounting bracket 11 and the rotating bracket 12 in real time, the current passing through the first coil 141 and the second coil 142 can be adjusted, so that the accuracy of the rotation angle between the mounting bracket 11 and the rotating bracket 12 relative to the housing body 13 is improved.

In one particular embodiment, referring to fig. 4, the angle sensing assembly 16 includes a hall sensor 161 and a third magnet 162. However, when a constant current I is applied to the points a and B of the hall semiconductor chip, an electron current of the constant current I is shifted to one side by the lorentz force when passing through the hall semiconductor chip, and a potential difference is generated in the CD direction in the hall semiconductor chip, which is a so-called hall voltage. The Hall voltage changes along with the change of the magnetic field intensity, the stronger the magnetic field, the higher the voltage, the weaker the magnetic field, and the lower the voltage. Although the hall voltage is small, typically a few millivolts, it can be amplified enough to output a strong signal by an amplifier in the integrated circuit.

The present embodiment fixedly arranges the hall sensor 161 and the rotating bracket 12, and the third magnet 162 is fixedly arranged on the mounting bracket 11 and the housing body 13, respectively. When the mounting bracket 11 rotates relative to the rotating bracket 12, the third magnet 162 is far away from or close to the hall sensor 161, so that the electron current in the hall sensor 161 follows the rotation of the third magnet 162 to generate a hall voltage corresponding to the deflection angle of the third magnet 162, and the relative angle between the mounting bracket 11 and the rotating bracket 12 can be obtained by analyzing the hall voltage. Similarly, when the rotating bracket 12 rotates relative to the housing body 13, the change in the angle between the hall sensor 161 and the third magnet 162 can be detected by the change in the magnetic field therebetween.

This embodiment drives the relative rotation support 12 of installing support 11 through letting in the pulse current who corresponds appointed angle to first coil 141 and rotates to set up hall sensor 161 and detect the relative angle of installing support 11 and rotating support 12, when the relative angle of installing support 11 and rotating support 12 is not matched with the appointed angle of pulse current, can increase pulse current, until the relative angle that hall sensor 161 detected reaches appointed angle.

Further, referring to fig. 4, the driving module 14 further includes a flexible circuit board 143 fixedly disposed on the rotating bracket 12, and the flexible circuit board 143 is electrically connected to the first coil 141, the second coil 142 and the hall sensor 161, so that corresponding currents can be simultaneously applied to the first coil 141, the second coil 142 and the hall sensor 161, the arrangement of the flat cables is reduced, and the volume required by the conductive wires is reduced.

Preferably, referring to fig. 4 and 6, the driving module 14 further includes a coil support 144 for fixing the first coil 141, the second coil 142 and the flexible circuit board 143, and the coil support 144 is fixedly disposed with the rotating support 12, so as to prevent a short circuit between the first coil 141 and the second coil 142 and facilitate fixing the connection of the flexible circuit board 143 with the first coil 141 and the second coil 142.

Preferably, referring to fig. 5, the housing body 13 encloses to form an accommodating cavity 132, and the accommodating cavity 132 is used for accommodating the mounting bracket 11, the rotating bracket 12 and the driving module 14 and can wrap and protect the mounting bracket 11, the rotating bracket 12 and the driving module 14. Meanwhile, a slot 133 is formed in the cavity wall of the accommodating cavity 132, and the slot 133 is used for introducing a flat cable of the flexible circuit board 143, and the flat cable extending out of the housing body 13 can be connected to equipment so as to introduce corresponding current to the flexible circuit board 143 in the housing body 13.

As for the installation manner of the mounting bracket 11 and the first and

third magnets

151 and 162, specifically, referring to fig. 4, the mounting bracket 11 is concavely provided with a first mounting groove 112 and a second mounting groove 113, the first mounting groove 112 is used for mounting the first magnet 151, the second mounting groove 113 is used for mounting the third magnet 162, and the second mounting groove 113 is disposed between two first mounting grooves 112, that is, the angle sensing assembly 16 is disposed between two first magnets 151, so that the magnetic field interference of the first magnet 151 to the angle sensing assembly 16 can be reduced.

Similarly, as for the installation manner of the housing body 13 and the second and

third magnets

152 and 162, specifically, referring to fig. 5, the housing body 13 is concavely provided with a third installation groove 134 and a fourth installation groove 135, the third installation groove 134 is used for installing the second magnet 152, the fourth installation groove 135 is used for installing the third magnet 162, and the fourth installation groove 135 is arranged between the two third installation grooves 134, so that the magnetic field interference of the second magnet 152 to the angle sensing assembly 16 can also be reduced.

Optionally, referring to fig. 4 and 6, the rotary drive device 1 of the present application further includes a magnetic isolation plate 17, the magnetic isolation plate 17 is fixedly disposed on the mounting bracket 11 and the housing body 13, and the first magnet 151 and the third magnet 162 are disposed between the magnetic isolation plate 17 and the mounting bracket 11, so that the influence of the first magnet 151 and the third magnet 162 on the outside can be reduced. Similarly, the second magnet 152 and the third magnet 162 are disposed between the magnetic isolation plate 17 and the housing body 13, so that the influence of the second magnet 152 and the third magnet 162 on the outside can be reduced.

In a preferred embodiment, when the mounting bracket 11 is concavely provided with the first mounting groove 112 and the second mounting groove 113, the magnetic shielding plate 17 is disposed on the first magnet 151 of the first mounting groove 112 and the third magnet 162 of the second mounting groove 113 to be flush with the first side surface 111 of the mounting bracket 11, so that the thickness and volume of the mounting bracket 11 can be reduced. Similarly, when the housing body 13 is concavely provided with the third mounting groove 134 and the fourth mounting groove 135, the magnetic isolation plate 17 can also be disposed on the second magnet 152 of the third mounting groove 134 and the third magnet 162 of the fourth mounting groove 135, and is flush with the second side 131 of the housing body 13, which can also reduce the thickness and volume of the housing body 13.

As for the rotatable connection manner of the mounting bracket 11 and the rotating bracket 12, optionally, referring to fig. 4, the rotary drive device 1 further includes a rotating shaft portion 18, the mounting bracket 11 is rotatably connected to the rotating bracket 12 through the rotating shaft portion 18, or the rotating bracket 12 is also rotatably connected to the housing body 13 through the rotating shaft portion 18, or the mounting bracket 11 and the rotating bracket 12, the rotating bracket 12 and the housing body 13 are rotatably connected through the rotating shaft portion 18.

In particular, the rotating shaft 18 is detachably connected to the rotating bracket 12 for facilitating the rotatable connection between the mounting bracket 11 and the rotating bracket 12. In addition, in order to facilitate the rotatable connection between the rotating bracket 12 and the housing body 13, the rotating shaft portion 18 and the housing body 13 may be detachably connected. Of course, the rotating shaft part 18, the rotating bracket 12 and the shell body 13 are detachably connected, so that the rotary driving device 1 is convenient to mount and dismount, and the assembly efficiency is improved.

The rotatable connection of the shaft portion 18 may be a bearing, but the bearing is complicated in structure, bulky, and expensive. In order to reduce the design cost and the material cost, referring to fig. 4, in the rotary driving device 1 of the present application, the arc column 181 is convexly arranged on the rotating shaft 18, the arc groove 182 is arranged on the mounting bracket 11, and the rotating friction force between the arc column 181 and the arc groove 182 is reduced to realize the rotatable connection, so that the size can be reduced and the cost can be reduced. Alternatively, the rotating bracket 12 may also be provided with an arc-shaped slot 182, and the arc-shaped column 181 and the arc-shaped slot 182 of the rotating bracket 12 are used for realizing rotatable connection, so that the size and the cost can be reduced. The arc-shaped grooves 182 are formed in the mounting bracket 11 and the housing body 13, so that the mounting bracket 11, the rotating bracket 12 and the housing body 13 can be rotatably connected by using only one rotating shaft part 18, and the design cost and the material cost are further reduced.

In addition, the detachable connection of the rotating shaft portion 18 to the mounting bracket 11 or the housing body 13 may be various, such as a screw connection. However, in order to reduce the weight, referring to fig. 1 and 4, a clamping hole 183 may be formed in the rotating shaft 18, a clamping post 184 is convexly disposed on the mounting bracket 11, a clamping post 184 is convexly disposed on the rotating bracket 12, or clamping posts 184 are disposed on both the mounting bracket 11 and the rotating bracket 12, and the clamping posts 184 are clamped with the clamping holes 183 to achieve the detachable connection. Meanwhile, when the clamping hole 183 of the rotating shaft 18 is clamped into the clamping column 184, the arc column 181 can abut against the arc groove 182, and the mounting bracket 11 and the rotating bracket 12 and the shell body 13 are limited.

As for the rotatable connection manner of the mounting bracket 11, the rotating bracket 12 and the housing body 13, optionally, referring to fig. 1, the rotating bracket 12 is sleeved on the mounting bracket 11, and the housing body 13 is sleeved on the rotating bracket 12, so as to reduce the volume of the rotary driving device 1.

As shown in fig. 2 and fig. 3, the present application further provides a terminal device, which includes a device body 2 and the rotary driving apparatus 1 in any of the above embodiments, wherein the driving module 14 of the rotary driving apparatus 1 is in communication connection with the device body 2, and the mounting bracket 11 of the rotary driving apparatus 1 is mounted with a light reflecting module 21 or a camera module 22. When the mounting bracket 11 is provided with the camera module 22, the camera module 22 can also be communicatively connected with the apparatus body 2 to transmit a captured image acquired by the camera module 22 into the apparatus body 2. The rotation driving device 1 in this embodiment may have the same structure and achieve the same effects as the rotation driving device 1 in the above embodiment, and the details of this embodiment are not repeated.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present application. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principles of the present application have been described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the present application and is not to be construed in any way as limiting the scope of the application. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present application without inventive effort, which shall fall within the scope of the present application.

Claims

1. A rotary drive device (1), characterized by comprising:

the mounting bracket (11) is used for mounting the light reflecting module (21) or the camera module (22), and two first magnets (151) with opposite polarities are arranged on the first side surface (111) of the mounting bracket (11) at intervals;

the mounting bracket (11) is rotatably connected to the rotating bracket (12);

the rotating bracket (12) is rotatably connected to the shell body (13), and two second magnets (152) with opposite polarities are arranged on the second side surface (131) of the shell body (13) at intervals;

the driving module (14) is fixedly arranged with the rotating bracket (12), the driving module (14) comprises a first coil (141) and a second coil (142), pulse current is respectively introduced into the first coil (141) and the second coil (142), so that the first coil (141) forms a magnetic pole to attract one of the first magnets (151) to drive the mounting bracket (11) to rotate on a first rotating plane relative to the rotating bracket (12), and the second coil (142) forms a magnetic pole to attract one of the second magnets (152) to drive the rotating bracket (12) to rotate on a second rotating plane relative to the shell body (13), so that the orientation of the light reflecting module (21) or the camera module (22) is changed.

2. The rotary drive device (1) according to claim 1, characterized in that the plane of the first coil (141) is parallel to the first side (111) and the plane of the second coil (142) is parallel to the second side (131).

3. The rotary drive device (1) according to claim 2, characterized in that the first side face (111) and the second side face (131) are arranged vertically such that the first plane of rotation and the second plane of rotation are arranged vertically.

4. The rotary drive device (1) according to claim 3, further comprising an angle sensing assembly (16) arranged on the drive module (14), wherein the angle sensing assembly (16) is configured to detect a rotation angle of the mounting bracket (11) relative to the rotating bracket (12) and a rotation angle of the rotating bracket (12) relative to the housing body (13).

5. The rotary drive device (1) according to claim 4, characterized in that the angle sensing assembly (16) comprises a Hall sensor (161) and a third magnet (162), the Hall sensor (161) being fixedly arranged with the rotary bracket (12), the third magnet (162) being fixedly arranged with the mounting bracket (11) and the housing body (13), respectively.

6. The rotary drive device (1) according to claim 5, characterized in that the drive module (14) further comprises a flexible circuit board (143) fixedly arranged on the rotary support (12), the flexible circuit board (143) being electrically connected with the first coil (141), the second coil (142) and the Hall sensor (161).

7. The rotary drive device (1) according to claim 6, characterized in that the drive module (14) further comprises a coil support (144) for fixing the first coil (141), the second coil (142) and the flexible circuit board (143), the coil support (144) being fixedly arranged with the rotary support (12).

8. The rotary drive device (1) according to claim 6, wherein the housing body (13) encloses to form an accommodating cavity (132), the accommodating cavity (132) is used for accommodating the mounting bracket (11), the rotating bracket (12) and the drive module (14), a wire slot (133) is opened on a cavity wall of the accommodating cavity (132), and the wire slot (133) is used for leading in a wire of the flexible circuit board (143).

9. The rotary drive device (1) according to claim 5, wherein the mounting bracket (11) is concavely provided with a first mounting groove (112) and a second mounting groove (113), the first mounting groove (112) is used for mounting the first magnet (151), the second mounting groove (113) is used for mounting the third magnet (162), and the second mounting groove (113) is arranged between the two first mounting grooves (112).

10. The rotary drive device (1) according to claim 5, wherein a third mounting groove (134) and a fourth mounting groove (135) are concavely provided on the housing body (13), the third mounting groove (134) being used for mounting a second magnet (152), the fourth mounting groove (135) being used for mounting the third magnet (162), the fourth mounting groove (135) being provided between the two third mounting grooves (134).

11. The rotary drive device (1) according to claim 5, further comprising a magnetic shield plate (17), wherein the magnetic shield plate (17) is fixedly disposed on the mounting bracket (11) and on the housing body (13), the first magnet (151) and the third magnet (162) are disposed between the magnetic shield plate (17) and the mounting bracket (11), and the second magnet (152) and the third magnet (162) are disposed between the magnetic shield plate (17) and the housing body (13).

12. The rotary drive device (1) according to claim 1, further comprising a shaft portion (18), the mounting bracket (11) being rotatably connected to the turning bracket (12) through the shaft portion (18);

and/or the rotating bracket (12) is rotatably connected with the shell body (13) through the rotating shaft part (18).

13. The rotary drive device (1) according to claim 12, characterised in that the rotary shaft portion (18) is detachably connected with the rotary bracket (12) and/or the rotary shaft portion (18) is detachably connected with the housing body (13).

14. The rotary drive (1) according to claim 12, characterized in that the rotary shaft (18) is convexly provided with an arc-shaped column (181), the mounting bracket (11) and/or the rotary bracket (12) is provided with an arc-shaped groove (182), and the arc-shaped column (181) is rotatably connected with the arc-shaped groove (182).

15. The rotary drive device (1) according to claim 14, wherein the rotary shaft portion (18) is provided with a locking hole (183), the rotary bracket (12) and/or the housing body (13) is provided with a locking post (184) in a protruding manner, and the locking post (184) is detachably connected with the locking hole (183).

16. The rotary drive device (1) as claimed in one of claims 1 to 15, characterized in that the rotary bracket (12) is mounted on the mounting bracket (11) and the housing body (13) is mounted on the rotary bracket (12).

17. A terminal device, characterized in that it comprises a device body (2) and a rotary drive device (1) according to any one of claims 1 to 16, the drive module (14) of the rotary drive device (1) being communicatively connected to the device body (2).