Patent Description:
With the continuous development of electronic devices, requirements of people for the shooting performance of the electronic devices are becoming higher and higher. The application of micro gimbals on the electronic devices has greatly improved the experience of consumers in improving the quality of handheld photography. Generally, a shaking amount corresponding to hand shaking can be decomposed into three directions X, Y, and Z in space, with a total of <NUM> degrees of freedom (movement along an X/Y/Z axis and rotation around the X/Y/Z axis: Rx, Ry, Rz). In addition to axial shaking in a focusing direction (Z axis), the shaking of the other <NUM> degrees of freedom has a significant impact on handheld photography, especially for night shooting and video shooting, ultimately affecting the imaging effect and consumer experience. At present, micro gimbal cameras used in the electronic devices (such as mobile phones) are two-axis gimbals, which can only prevent shaking of <NUM> degrees of freedom and cannot prevent shaking (Rz) rotating along the Z axis. Therefore, when there is shaking in the Rz direction, the imaging quality of the micro gimbal cameras is poor.

It can be seen that the anti-shake effect of the micro gimbal cameras in related technologies is poor. Document <CIT> discloses a lens assembly driven by a first driving module and a second driving module that performs movements in multiple different directions.

Embodiments of this application aim to provide a camera structure that can solve the problem of a poor anti-shake effect of a micro gimbal camera in related technologies.

To resolve the foregoing technical problems, this application is implemented as follows:.

According to a first aspect, an embodiment of this application provides a camera structure, including a universal shaft, an outer gimbal support, an inner gimbal support accommodated in the outer gimbal support, a gimbal carrier, a first driving mechanism, a second driving mechanism, and a camera module, where.

Optionally, there is a first accommodating space between a first inner side wall of the outer gimbal support and a first outer side wall of the inner gimbal support, and the first driving mechanism and the second driving mechanism are disposed in the first accommodating space.

Optionally, the first driving mechanism includes: a first magnet yoke, a first driving coil group, and a first magnet group, where.

Optionally, the camera structure further includes:
a first position feedback element group, configured to detect a rotation amount of the inner gimbal support relative to the outer gimbal support along the first axis or the second axis, where the first position feedback element group is disposed within a magnetic field range of the first magnet group and the first driving coil group.

Optionally, the first driving mechanism further includes: an outer magnet yoke, where
the outer magnet yoke is fixed to the outer gimbal support, and forms a magnetic circuit with the first magnet group.

Optionally, the second driving mechanism includes: a second magnet yoke, a second driving coil group, and a second magnet group, where.

Optionally, the camera structure further includes:
a second position feedback element group, configured to detect a rotation amount of the gimbal carrier relative to the inner gimbal support along the third axis, where the second position feedback element group is disposed within a magnetic field range of the second magnet group and the second driving coil group.

Optionally, the first driving mechanism further includes: an inner magnet yoke, where
the inner magnet yoke is fixed to the gimbal carrier, and forms a magnetic circuit with the second magnet group.

Optionally, each of the supporting portions is provided with a first through hole, and an axial direction of the first through hole is perpendicular to the third axis; and.

Optionally, the adapter structure further includes: a guide plate, where the guide plate is fixedly connected to a first side wall of the clamping portion and extends towards a direction of a second side wall of the clamping portion, and the first side wall of the clamping portion and the second side wall of the clamping portion are opposite two side walls of the clamping portion;
and/or
the adapter structure further includes: a limiting plate, where the limiting plate is fixed at a groove bottom of the clamping portion to limit a rotation angle of the supporting portion to be less than a preset angle in a case that the supporting portion is rotated relative to the clamping portion.

Optionally, the outer gimbal support and the inner gimbal support are provided with clamping grooves that matches the clamping portion, and the clamping portion is clamped in the clamping grooves to hinge the supporting portion to the outer gimbal support or the inner gimbal support.

Optionally, the camera module includes a camera component and a first circuit board, where
the camera component is fixed to the gimbal carrier, the first circuit board is fixed on a side of the camera component that is away from the gimbal carrier, and the first circuit board is movably connected to the outer gimbal support.

Optionally, the first circuit board includes: a first sub-circuit board, a second sub-circuit board, and a flexible circuit, where.

Optionally, at least two first curved baffles are disposed on the bottom portion of the inner gimbal support, and a ring at which the at least two first curved baffles are located is coaxial with the third axis; and.

Optionally, the camera structure further includes: a rolling supporting bracket, where
the rolling supporting bracket is fixed to the inner gimbal support and abuts against a side of the gimbal carrier that faces away from the inner gimbal support to limit movement of the gimbal carrier along a direction of the third axis.

According to a second aspect, an embodiment of this application provides an electronic device, and the electronic device includes the camera structure according to the first aspect.

In the embodiments of this application, the camera structure includes: a universal shaft, an outer gimbal support, an inner gimbal support accommodated in the outer gimbal support, a gimbal carrier, a first driving mechanism, a second driving mechanism, and a camera module, where the camera module is movably connected to the outer gimbal support, and the camera module is fixedly connected to the gimbal carrier; two supporting portions of the universal shaft that are axially distributed along a first axis are hinged to the outer gimbal support, and two supporting portions of the universal shaft that are axially distributed along a second axis are hinged to the inner gimbal support, where the first axis intersects with the second axis; the first driving mechanism is connected to the outer gimbal support and the inner gimbal support, to drive the inner gimbal support to rotate relative to the outer gimbal support along the first axis and/or the second axis; the gimbal carrier is slidably connected to a bottom portion of the inner gimbal support; and the second driving mechanism is connected to the inner gimbal support and the gimbal carrier, to drive the gimbal carrier to rotate relative to the inner gimbal support along a third axis, where the third axis is perpendicular to the first axis and the second axis. In this way, the camera module can rotate relative to the outer gimbal support along the first axis, the second axis, or the third axis, to enhance the freedom of the camera module, thereby enhancing the anti-shake effect of the camera.

Apparently, the described embodiments are some of the embodiments of this application rather than all of the embodiments.

The specification and claims of this application, and terms "first" and "second" are used to distinguish similar objects, but are unnecessarily used to describe a specific sequence or order. It should be understood that the data in such a way are interchangeable in proper circumstances, so that the embodiments of this application can be implemented in other orders than the order illustrated or described herein. Objects distinguished by "first", "second", and the like are usually one type, and the number of objects is not limited. For example, the first object may be one or more than one. In addition, in the specification and the claims, "and/or" means at least one of the connected objects, and the character "/" generally indicates an "or" relationship between the associated objects.

A camera structure and an electronic device provided in the embodiments of this application are described below through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Refer to <FIG>. <FIG> is a structural diagram of a camera structure according to embodiments of this application; <FIG> is a splitting view of a camera structure according to embodiments of this application; <FIG> is a top view of a camera structure according to embodiments of this application; <FIG> is a cross-sectional view along an A-A direction in <FIG>; <FIG> is a cross-sectional view along a B-B direction in <FIG>; <FIG> is a bottom view of a camera structure according to embodiments of this application. The camera structure provided in the embodiments of this application includes: a universal shaft <NUM>, an outer gimbal support <NUM>, an inner gimbal support <NUM> accommodated in the outer gimbal support <NUM>, a gimbal carrier <NUM>, a first driving mechanism <NUM>, a second driving mechanism <NUM>, and a camera module <NUM>.

The camera module <NUM> is movably connected to the outer gimbal support <NUM>, and the camera module <NUM> is fixedly connected to the gimbal carrier <NUM>; two supporting portions <NUM> of the universal shaft <NUM> that are axially distributed along a first axis are hinged to the outer gimbal support <NUM>, and two supporting portions <NUM> of the universal shaft <NUM> that are axially distributed along a second axis are hinged to the inner gimbal support <NUM>, where the first axis intersects with the second axis; and the first driving mechanism <NUM> is connected to the outer gimbal support <NUM> and the inner gimbal support <NUM> to drive the inner gimbal support <NUM> to rotate relative to the outer gimbal support <NUM> along the first axis and/or the second axis.

In addition, the gimbal carrier <NUM> is slidably connected to a bottom portion of the inner gimbal support <NUM>; and the second driving mechanism <NUM> is connected to the inner gimbal support <NUM> and the gimbal carrier <NUM>, to drive the gimbal carrier <NUM> to rotate relative to the inner gimbal support <NUM> along a third axis, where the third axis is perpendicular to the first axis and the second axis.

In a specific implementation, the first axis may extend in the same direction as an H line shown in <FIG>, the second axis may extend in the same direction as an M line shown in <FIG>, and the third axis may be a Z axis shown in <FIG>. Certainly, in a practical application, the first axis and the second axis may not be perpendicular to each other, for example: an angle between the first axis and the second axis is greater than <NUM>° and less than <NUM>°.

In an implementation, driving the inner gimbal support <NUM> to rotate relative to the outer gimbal support <NUM> along the first axis and/or the second axis may be understood as: driving the inner gimbal support <NUM> to rotate relative to the outer gimbal support <NUM> along an X axis or a Y axis, where the outer gimbal support <NUM> may have a rectangular structure, with the X axis and the Y axis respectively parallel to two mutually perpendicular rectangular edges on the outer gimbal support <NUM>.

Specifically, during the rotation of the inner gimbal support <NUM> relative to the outer gimbal support <NUM> along the first axis, the inner gimbal support <NUM> has rotational components along the X axis direction and the Y axis direction. Similarly, during the rotation of the inner gimbal support <NUM> relative to the outer gimbal support <NUM> along the second axis, the inner gimbal support <NUM> also has rotational components along the X axis direction and the Y axis direction. In this case, if only the inner gimbal support <NUM> needs to be driven to rotate relative to the outer gimbal support <NUM> along the X axis, the component in the Y axis direction during the rotation of the inner gimbal support <NUM> relative to the outer gimbal support <NUM> along the first axis may be offset against the component in the Y axis direction during the rotation of the inner gimbal support <NUM> relative to the outer gimbal support <NUM> along the second axis, thereby driving the inner gimbal support <NUM> to rotate relative to the outer gimbal support <NUM> along the X axis.

That the camera module <NUM> is fixedly connected to the gimbal carrier <NUM> may be understood as that: an outer wall of the camera module <NUM> is attached and fixedly connected to an inner wall of the gimbal carrier <NUM>.

In a practical application, as shown in <FIG> and <FIG>, the camera structure provided in the embodiments of this application may include: a shell <NUM>, where the shell <NUM> may include a top shell 1a and a bottom shell 1b, where the bottom shell 1b is recessed in a direction away from the top shell 1a to form an accommodating space between the top shell 1a and the bottom shell <NUM>, and the universal shaft <NUM>, the outer gimbal support <NUM>, the inner gimbal support <NUM> accommodated in the outer gimbal support <NUM>, the gimbal carrier <NUM>, the first driving mechanism <NUM>, the second driving mechanism <NUM>, and the camera module <NUM> may be accommodated in the accommodating space of the shell <NUM>. In addition, the top shell 1a, the universal shaft <NUM>, the outer gimbal support <NUM>, the inner gimbal support <NUM>, and the gimbal carrier <NUM> are all provided with a light hole to enable the bottom camera module <NUM> to collect image information through the light hole. Even through the light hole, a head portion of the camera module <NUM> (that is, above the two axes in <FIG>) is exposed to the top shell 1a.

In this way, the camera structure provided in the embodiments of this application can be enclosed as a whole through the shell <NUM>, and the shell <NUM> can also protect the camera module <NUM> and other components inside.

In a specific implementation, the first driving mechanism <NUM> and the second driving mechanism <NUM> may be an electric motor driving mechanism, an electromagnetic driving mechanism, and the like. For the convenience of description, the following embodiments only take an example in which the first driving mechanism <NUM> and the second driving mechanism <NUM> are electromagnetic driving mechanisms for description, which is not specifically limited herein.

In addition, in the coordinate axis shown in <FIG>, Rx, Ry, and Rz respectively represent the directions of rotation along the X axis, the Y axis, and the Z axis.

In the embodiments of this application, the second driving mechanism independently drives the gimbal carrier to rotate along the Rz axis direction to achieve Rz axis anti-shake, so that the Rz axis anti-shake system is independent of the Rx axis anti-shake system and Ry axis anti-shake system. In this way, when anti-shake functions are performed on the Rx axis or the Ry axis, the position feedback system of the Rz is not affected, thereby effectively improving the anti-shake accuracy of the Rz axis, more effectively improving the image quality of night shooting and video shooting when hand shaking occurs, and further enhancing the consumer experience.

In addition, that two supporting portions <NUM> of the universal shaft <NUM> that are axially distributed along a first axis are hinged to the outer gimbal support <NUM>, and two supporting portions <NUM> of the universal shaft <NUM> that are axially distributed along a second axis are hinged to the inner gimbal support <NUM> may be understood as that: The two supporting portions <NUM> of the universal shaft <NUM> that are axially distributed along the first axis form a first rotation axis. Therefore, when the two supporting portions <NUM> are hinged to the outer gimbal support <NUM>, the universal shaft <NUM> can rotate relative to the outer gimbal support <NUM> along the first rotation axis. And the two supporting portions <NUM> of the universal shaft <NUM> that are axially distributed along the second axis form a second rotation axis. Therefore, when the two supporting portions <NUM> are hinged to the inner gimbal support <NUM>, the universal shaft <NUM> can rotate relative to the inner gimbal support <NUM> along the second rotation axis, which enables the inner gimbal support <NUM> to rotate relative to the outer gimbal support <NUM> along the first rotation axis and the second rotation axis.

On this basis, the camera module <NUM> can rotate along the Rz axis direction relative to the inner gimbal support <NUM> through the gimbal carrier <NUM>. Therefore, the camera module <NUM> rotates along the Rx axis, the Ry axis, and the Rz axis. In an actual shooting, shake parameters such as a shake direction and a shake distance of the camera may be obtained, and based on this, the camera structure provided in the embodiments of this application can be controlled to rotate a corresponding rotation amount along the Rx axis direction, the Ry axis direction, and the Rz axis direction to achieve anti-shake along the Rx axis direction, the Ry axis direction, and the Rz axis direction.

Optionally, as shown in <FIG>, there is a first accommodating space <NUM> between a first inner side wall of the outer gimbal support <NUM> and a first outer side wall of the inner gimbal support <NUM>, and the first driving mechanism <NUM> and the second driving mechanism <NUM> are disposed in the first accommodating space <NUM>.

In a specific implementation, the head portion of the camera module <NUM> can extend out of the outer gimbal support <NUM> through the light hole on the upper side of the outer gimbal support <NUM>, that is, the first driving mechanism <NUM> and the second driving mechanism <NUM> can be aligned with the tail portion of the camera module <NUM> (that is, below the Z axis in <FIG>), so that the electromagnetic driving modules of the first driving mechanism <NUM> and the second driving mechanism <NUM> can be disposed in an area that is far from the head potion of the gimbal, to provide more demagnetized areas at the head portion of the gimbal, and the camera module equipped with the gimbal can choose more types of driving motors, such as: an optical image stabilization (OIS) camera module. In this way, the anti-shake function of the camera structure along the Rx direction, the Ry direction, and the Rz direction provided in the embodiments of this application can be combined to construct a <NUM>-axis anti-shake camera system (that is, anti-shake along the X, Y, Rx, Ry, and Rz directions), which can then drive the camera system to compensate for the shake of the <NUM> degrees of freedom separately or in combination, avoiding the impact of time difference and failure to switch compensation states in a timely manner in synthetic motion compensation, so that the captured images and videos have better image quality, especially in a case of shaking hands during night shooting, which can effectively improve the overall consumer experience.

Optionally, as shown in <FIG> and <FIG>, the first driving mechanism <NUM> includes: a first magnet yoke <NUM>, a first driving coil group <NUM>, and a first magnet group <NUM>, where.

In a specific implementation, the first direction may be in the same direction as the Y axis shown in <FIG>, and that the first magnet group <NUM> matches with the first driving coil group <NUM> may be understood as that: the magnetic field generated by the first driving coil group <NUM> can act on the first magnet group <NUM>, and a magnetic circuit is generated between the first magnet yoke <NUM> and the first magnet group <NUM>, or the magnets in the first magnet group <NUM> correspond to the coils of the first driving coil group <NUM> one by one, and the corresponding magnets and coils are arranged directly facing each other.

In an implementation, a current whose magnitude and direction are controllable separately can be applied to the first driving coil group <NUM> to generate an interaction force with a controllable direction and magnitude between the first magnet group <NUM> fixed to the first magnet yoke <NUM> and the first driving coil group <NUM> fixed to the outer gimbal support <NUM>, thereby driving the first magnet yoke <NUM> (the first magnet group <NUM>) to generate a rotational motion with a controllable direction along the Rx axis and the Ry axis relative to the outer gimbal support <NUM>, thereby directly driving the inner gimbal support <NUM> (camera module <NUM>) to generate rotational motion along the Rx axis and the Ry axis for anti-shake of the Rx axis and the Ry axis.

Specifically, as shown in <FIG> and <FIG>, the first magnet group <NUM> includes two first magnets (21A and 21B), and the first driving coil group <NUM> includes two first coils (7A and 7B). Therefore, the first coil 7A is arranged facing the first magnet 21A, and the first coil 7B is arranged opposite to the first magnet 21B. In a case that the force directions of the first magnet 21A and the first magnet 21B are in the same direction as the Z axis or in the same direction as the -Z axis, the magnet drives the inner gimbal support <NUM> to rotate relative to the outer gimbal support <NUM> along the Ry direction. When the force directions of the first magnet 21A and the first magnet 21B are different, that is, one is in the same direction as the Z axis and the other is in the same direction as the -Z axis, the inner gimbal support <NUM> is driven to rotate relative to the outer gimbal support <NUM> along the Rx axis direction.

In a specific implementation, the outer gimbal support <NUM> may be provided with a second through hole <NUM>, so that the coils of the first driving coil group <NUM> are embedded in the second through hole <NUM>, thereby achieving a fixed connection between the first driving coil group <NUM> and the outer gimbal support <NUM>.

In addition, the first magnet yoke <NUM> is fixed to the first outer side wall of the inner gimbal support <NUM>, where the first magnet yoke <NUM> may be directly or indirectly fixed to the first outer side wall of the inner gimbal support <NUM>, for example: as shown in <FIG>, a rolling supporting bracket <NUM> fixed to the inner gimbal support <NUM> may be disposed, so that the first magnet yoke <NUM> is fixed to the inner gimbal support <NUM> through the rolling supporting bracket <NUM>.

Further, in order to apply a current with a controllable magnitude and direction to the first driving coil group <NUM>, the first driving coil group <NUM> may be connected to the first driving circuit board <NUM>. The first driving circuit board <NUM> may be attached to the outer side of the outer gimbal support <NUM>, and the first driving coil group <NUM> may be installed on the first driving circuit board <NUM> through the second through hole <NUM>, to provide the current with a controllable magnitude and direction to the first driving coil group <NUM> through the first driving circuit board <NUM>.

In an implementation, the magnitude and direction of the current applied into the first driving coil group <NUM> may be controlled by a controller in the electronic device equipped with a three-axis gimbal provided in the embodiments of this application. In this case, a first interface <NUM> may also be disposed on the outer side of the first driving circuit board <NUM> to achieve data communication connection with the controller in the electronic device through the first interface <NUM>. Specifically, as shown in <FIG>, the first interface <NUM> may be connected to the first driving circuit board <NUM> through a connection plate <NUM>.

In addition, in a practical application, a first position feedback element group (8A and 8B) can also be disposed on the first driving circuit board <NUM>, so that the rotation amount of the inner gimbal support <NUM> relative to the outer gimbal support <NUM> along the Rx axis direction and the Ry axis direction may be detected by the first position feedback element group (8A and 8B), thereby facilitating precise control of the rotation amount.

In an implementation, as shown in <FIG>, the first position feedback element group <NUM> may be a Hall element, and may be disposed within the magnetic field range of the first magnet group <NUM> and the first driving coil group <NUM> to determine a displacement amount of the first magnet group <NUM> relative to the first magnet yoke <NUM> by inducing changes in the magnetic field, thereby determining the rotation amount of the inner gimbal support <NUM> relative to the outer gimbal support <NUM> along the Rx axis and the Ry axis.

Certainly, in a specific implementation, the first position feedback element group <NUM> may also be a driving chip. The driving chip can not only control the input of a current with a controllable magnitude and direction to the first driving coil group <NUM>, but also feedback the rotation amount in the Rx axis direction and the Ry axis direction.

Optionally, the first driving mechanism <NUM> further includes: an outer magnet yoke <NUM>, where the outer magnet yoke <NUM> is fixed to the outer gimbal support <NUM>, and forms a magnetic circuit with the first magnet group <NUM>.

In an implementation, as shown in <FIG>, the outer magnet yoke <NUM> may be fixed on an outer side of the first driving circuit board <NUM>.

A function of the outer magnet yoke <NUM> is to increase the driving force of the first driving mechanism <NUM>, in order to improve the anti-shake effect of the camera structure provided in the embodiments of this application along the Rx axis and the Ry axis.

Optionally, the second driving mechanism <NUM> includes: a second magnet yoke (in this implementation, the second magnet yoke and the first magnet yoke is the same magnet yoke <NUM>), a second driving coil group <NUM>, and a second magnet group <NUM>, where.

It should be noted that in the embodiments of this application, the first magnet yoke and the second magnet yoke are the same magnet yoke <NUM>, and the first magnet group <NUM> and the second magnet group <NUM> are fixed on opposite two sides of the magnet yoke <NUM> respectively, which can reduce a quantity of magnet yokes in the camera structure provided in the embodiments of this application, reduce its volume, and reduce costs. Certainly, if space and cost allow, the first magnet yoke and the second magnet yoke may be different magnet yokes, which is not limited herein.

In an implementation, as shown in <FIG>, the first magnet yoke <NUM> may be provided with a through hole, to engage a buckle structure <NUM> extending from the first outer side wall of the inner gimbal support <NUM> with the through hole. In addition, the gimbal carrier <NUM> is movably connected to the bottom portion of the inner gimbal support <NUM>, so that the second driving coil group <NUM> fixed to the gimbal carrier <NUM> is located between the first outer side wall of the inner gimbal support <NUM> and the first magnet yoke <NUM>. Therefore, when the second driving coil group <NUM> is energized with a current with a controlled magnitude and direction, an interaction force may be generated between the second driving coil group <NUM> and the second magnet group <NUM> that is fixed on one side of the first magnet yoke <NUM> and faces towards the second driving coil group <NUM>, thereby driving the gimbal carrier <NUM> relative to the inner gimbal support <NUM> along the third axis based on the second magnet group <NUM>.

Further, in order to apply a current with a controllable magnitude and direction to the second driving coil group <NUM>, the second driving coil group <NUM> may be connected to a second driving circuit board <NUM>. The second driving circuit board may be attached to the outer side wall of the gimbal carrier <NUM>, the second driving coil group <NUM> may be installed on the second driving circuit board <NUM>, and a second driving chip <NUM> connected to the second driving coil group <NUM> may be disposed on the second driving circuit board <NUM>, to control the magnitude and direction of the current input to the second driving coil group <NUM> through the second driving chip <NUM>.

In addition, in a practical application, a second position feedback element group may also be disposed on the second driving circuit board <NUM> (in this embodiment, the second position feedback element group and the second driving chip <NUM> are the same component) to obtain the rotation amount of the gimbal carrier <NUM> relative to the inner gimbal support <NUM> along the third axis through the second driving chip <NUM>, thereby facilitating precise control of the Rz axis rotation amount.

Certainly, in a specific implementation, the second position feedback element group may also be different components from the second driving chip <NUM>, for example, the second position feedback element group includes a Hall element, and may be disposed within the magnetic field range of the second driving coil group <NUM> and the second magnet group <NUM> to determine the displacement amount of the second driving coil group <NUM> relative to the second magnet yoke <NUM> by inducing changes in the magnetic field, thereby determining the rotation amount of the gimbal carrier <NUM> relative to the inner gimbal support <NUM> along the Rz axis direction.

In addition, in a specific implementation, the first position feedback element group <NUM> may also be a driving chip. The driving chip can not only control the input of a current with a controllable magnitude and direction to the second driving coil group <NUM>, but also feedback the rotation amount in the Rx axis direction and the Ry axis direction.

Further, as shown in <FIG>, the second driving circuit board <NUM> may be in a bent structure to be attached to the adjacent two side walls of the gimbal carrier <NUM> (for example: the first outer side wall and a bottom wall shown in <FIG>). In addition, a circuit board stiffener <NUM> that matches the structure of the second driving circuit board <NUM> may also be disposed to enhance the structural strength of the second driving circuit board <NUM> by attaching the second driving circuit board <NUM> to the circuit board stiffener <NUM>.

Optionally, the second driving mechanism <NUM> further includes: an inner magnet yoke (not shown in the figure), where the inner magnet yoke is fixed to the gimbal carrier <NUM>, and forms a magnetic circuit with the second magnet group <NUM>.

In an implementation, the inner magnet yoke may be fixed on a side of the second driving circuit board <NUM> that faces away from the second driving coil group <NUM>, for example: As shown in <FIG>, a groove <NUM> is disposed on the outer side wall of the gimbal carrier <NUM> to embed the inner magnet yoke in the groove <NUM> and clamp the inner magnet yoke between the gimbal carrier <NUM> and the second driving circuit board <NUM>.

A function of the inner magnet yoke <NUM> is to increase the driving force of the second driving mechanism <NUM>, in order to improve the anti-shake effect of the camera structure provided in the embodiments of this application along the Rz axis direction.

Optionally, as shown in <FIG> and <FIG>, each of the supporting portions <NUM> is provided with a first through hole <NUM>, and an axial direction of the first through hole <NUM> is perpendicular to the third axis; and.

As shown in <FIG>, four corners of the universal shaft <NUM> extend along an opposite direction of the Z axis to connect to an adapter structure. During the assembly process, the first ball <NUM> may be clamped in the first through hole <NUM>, and then inserted into the clamping portion <NUM> together.

In addition, as shown in <FIG>, the opposite two side walls of the clamping portion <NUM> may be recessed in a direction away from each other, so that when the first ball <NUM> is clamped in the clamping portion <NUM>, the first ball <NUM> can maintain the position unchanged in the clamping portion <NUM>. Specifically, a ball maintaining structure <NUM> and a ball maintaining structure <NUM> are respectively disposed on the opposite two side walls of the clamping portion <NUM>, where the ball maintaining structure <NUM> is located on the opposite side of the ball maintaining structure <NUM>, and the ball maintaining structure <NUM> is elastically connected to the side wall on which the ball maintaining structure <NUM> is located to facilitate the assembly of the first ball <NUM> and the supporting portion <NUM>. The bottom portion of the clamping portion <NUM> is provided with an opening <NUM> to reduce the elastic force between the opposite two side walls of the clamping portion <NUM>.

Further, as shown in <FIG>, <FIG>, and <FIG>, the adapter structure further includes: a guide plate <NUM>, where the guide plate <NUM> is fixedly connected to a first side wall of the clamping portion <NUM> and extends towards a direction of a second side wall of the clamping portion <NUM>, and the first side wall of the clamping portion <NUM> and the second side wall of the clamping portion <NUM> are opposite two side walls of the clamping portion <NUM>;
and/or
the adapter structure further includes: a limiting plate <NUM>, where the limiting plate <NUM> is fixed on an end of the clamping portion <NUM> that is away from the universal shaft <NUM> (for example, a groove bottom portion of the U-shaped arm) to limit a rotation angle of the supporting portion <NUM> to be less than a preset angle in a case that the supporting portion <NUM> is rotated relative to the clamping portion <NUM>.

In an implementation, the first side wall of the clamping portion <NUM> may be located on the side of the clamping portion <NUM> that is away from the center of the universal shaft <NUM>, and a quantity of guide plates <NUM> is two. The two guide plates <NUM> are located on opposite two sides of the first side wall of the clamping portion <NUM> to align the supporting portion <NUM> with the center of the two guide plates <NUM> during assembly, thereby playing a guiding role.

In addition, an end of the limiting plate <NUM> that is not fixed to the clamping portion <NUM> can be tilted outward, so that in a case that the supporting portion <NUM> is rotated by a preset angle around the first ball <NUM>, the supporting portion <NUM> abuts against the limiting plate <NUM>, thereby preventing further rotation of the supporting portion <NUM>.

Optionally, as shown in <FIG> and <FIG>, clamping grooves (<NUM>, <NUM>) are disposed on the outer gimbal support <NUM> and the inner gimbal support <NUM> that match the clamping portion <NUM>. The clamping portion <NUM> is clamped in the clamping grooves (<NUM>, <NUM>) to hinge the supporting portion <NUM> to the outer gimbal support <NUM> or the inner gimbal support <NUM>.

Specifically, the two supporting portions <NUM> located on the first axis direction of the universal shaft <NUM> are respectively clamped in two clamping grooves <NUM> on the diagonal of the outer gimbal support <NUM>, and the two supporting portions <NUM> located on the second axis direction of the universal shaft <NUM> are respectively clamped in two clamping grooves <NUM> on the diagonal of the inner gimbal support <NUM>.

In this embodiment, clamping grooves (<NUM>, <NUM>) are provided on the outer gimbal support <NUM> and the inner gimbal support <NUM>, so that heights of the universal shaft <NUM>, the outer gimbal support <NUM>, and the inner gimbal support <NUM> along the Z axis direction can be reduced, thereby reducing the overall size of the camera structure provided in the embodiments of this application.

Optionally, as shown in <FIG>, the camera module <NUM> includes a camera component <NUM> and a first circuit board <NUM>, where
the camera component <NUM> is fixed to the gimbal carrier <NUM>, the first circuit board <NUM> is fixed on a side of the camera component <NUM> that is away from the gimbal carrier <NUM>, and the first circuit board <NUM> is movably connected to the outer gimbal support <NUM>.

In an implementation, the first circuit board <NUM> can transmit a data signal and an electrical signal of the camera component <NUM>, the first circuit board <NUM> is fixed on a side of the camera component <NUM> that is away from the gimbal carrier <NUM>, and the first circuit board <NUM> is movably connected to the outer gimbal support <NUM>, so that the first circuit board <NUM> can rotate with the gimbal carrier <NUM> together.

Further, as shown in <FIG>, the first circuit board <NUM> includes: a first sub-circuit board <NUM>, a second sub-circuit board <NUM>, and a flexible circuit <NUM>, where.

In a specific implementation, the flexible circuit <NUM> can form a planar spring structure to enable relative movement of the first sub-circuit board <NUM> and the second sub-circuit board <NUM>.

In addition, the second sub-circuit board <NUM> can also be provided with an interface or a pad <NUM> for connecting to a connector, and the second sub-circuit board <NUM> extends from a bottom opening of the shell <NUM> to the outside of the shell <NUM>, so that the pad <NUM> is located outside the shell <NUM>, so as to facilitate the connection of the first circuit board <NUM> with the internal circuit of the electronic device equipped with the camera structure provided in the embodiments of this application through the pad <NUM>.

In this implementation, by connecting the flexible circuit <NUM> between the first sub-circuit board <NUM> and the second sub-circuit board <NUM> located in the same plane, and making the flexible circuit <NUM> form a planar spring structure, elastic connection between the first sub-circuit board <NUM> and the second sub-circuit board <NUM> can be achieved, thereby reducing the occupied space of the first circuit board <NUM> and achieving elastic connection between the camera component <NUM> and the outer gimbal support <NUM> through the first circuit board <NUM>, in order to maintain the attitude of the camera component <NUM>.

Optionally, as shown in <FIG> and <FIG>, at least two first curved baffles <NUM> are disposed on the bottom portion of the inner gimbal support <NUM>, and a ring at which the at least two first curved baffles <NUM> are located is coaxial with the third axis; and.

Under the limit action of the curved baffle group, the second ball <NUM> can only rotate around the Z axis, so that when the gimbal carrier is under stress, the gimbal carrier can only rotate around the Z axis, thereby improving the accuracy of anti-shake along the Rz axis direction.

Further, an end of the second curved baffle <NUM> can be provided with a rotation limit portion <NUM> to limit the rotation of the gimbal carrier <NUM> relative to the inner gimbal support <NUM> along the Rz axis direction.

Certainly, in a specific implementation, it is also possible to limit the rotation of the gimbal carrier <NUM> relative to the inner gimbal support <NUM> around the Z axis by setting a slide rail and a slider between the inner gimbal support <NUM> and the gimbal carrier <NUM>, which is not further described here.

Optionally, as shown in <FIG>, the camera structure further includes: a rolling supporting bracket <NUM>, where
the rolling supporting bracket <NUM> is fixed to the inner gimbal support <NUM> and abuts against a side of the gimbal carrier <NUM> that faces away from the inner gimbal support <NUM> to limit movement of the gimbal carrier <NUM> along a direction of the third axis.

In this embodiment, the gimbal carrier <NUM> is clamped between the rolling supporting bracket <NUM> and the inner gimbal support <NUM> to limit the axial movement of the camera module <NUM> along the Z axis driven by the inner gimbal support <NUM>, thereby improving the accuracy of the camera structure.

Further, as shown in <FIG>, a groove or through hole can be provided on the bottom surface of the gimbal carrier <NUM> that is attached to the rolling supporting bracket <NUM>, and the second ball <NUM> can be clamped in the groove or the through hole to reduce the friction between the rolling supporting bracket <NUM> and the gimbal carrier <NUM>, thereby improving the sensitivity of the second driving mechanism <NUM> to drive the gimbal carrier <NUM>.

Specifically, as shown in <FIG>, the rolling supporting bracket <NUM> is an integrated structure, which specifically includes: a buckle structure <NUM> configured to buckle with the inner gimbal support <NUM>, a platform <NUM> configured to support the second ball <NUM>, and an installation plate <NUM> configured to fix the first magnet yoke <NUM>. The installation plate <NUM> is provided with a third through hole to ensure that the buckle structure on the inner gimbal support <NUM> passes through the third through hole and is fixedly connected to the installation plate <NUM> and the first magnet yoke <NUM>.

The first magnet yoke <NUM> can be fixed to the inner gimbal support <NUM> by clamping between the inner gimbal support <NUM> and the installation plate <NUM>, and the installation plate <NUM> is provided with a spacing portion <NUM> protruding towards the direction away from the gimbal carrier <NUM>. The spacing portion <NUM> separates the installation plate <NUM> into two parts, so that when the first magnet group <NUM> is installed on one side of the installation plate <NUM> facing away from the gimbal carrier <NUM>, by separating the magnets of the first magnet group <NUM> through the spacing portion <NUM> and limiting the magnets in the first magnet group <NUM>, the fixed strength of the magnets in the first magnet group <NUM> can be improved.

Based on the above, the camera structure provided in the embodiments of this application has the following beneficial effects: the camera structure can drive the camera module to rotate in the Rx direction, the Ry direction, and the Rz direction. In addition to preventing shake in the Rx direction, the Ry direction, and the Rz direction, the camera structure can also be combined with corresponding algorithm processing to achieve translation shake along the X axis and the Y axis. Therefore, the camera structure can have a total of anti-shake effect along the <NUM> axis direction; the electromagnetic driving module (the first driving mechanism and the second driving mechanism) is disposed on a side of the camera structure, which leaves more non-magnetic areas on the other three sides of the camera structure, facilitating the layout of the multi axis anti-shake mechanism; a planar spring circuit board structure is adopted, so that the circuit board is unfolded in a planar manner in the bottom space of the gimbal, without the need for multiple bends of the circuit board. In this way, the occupied space of the circuit board is reduced, the overall volume of the camera structure is reduced, and more space is allowed for layout of other devices, such as increasing battery size and capacity to improve the battery life of a mobile phone, and indirectly improving the use experience of a consumer; a gimbal carrier structure and a driving structure thereof that can rotate in the Rz direction are disposed in the middle of the camera structure; and movement of the gimbal carrier structure and the driving structure thereof is independent of the movement along Rx and Ry, which can effectively reduce a crosstalk impact of three-axis synchronous drive; and the gimbal carrier <NUM> is provided with the second driving coil group <NUM> and the driving element, which can be led out through the first circuit board <NUM> to connect to an external circuit. The first driving coil group <NUM> and the first position feedback element group <NUM> are disposed on a side of the camera structure and fixed on the outer gimbal support <NUM>, which can be directly led out to connect to the external circuit. A clamping portion supporting structure with double-sided clamping of the first ball <NUM> can reduce the impact of multi degree of freedom vibration, thereby reducing changes in camera external parameters and providing strong support for multi camera fusion algorithms.

An embodiment of this application further provides an electronic device, and the electronic device includes any camera structure shown in <FIG>.

The electronic device in the embodiments of this application may be a mobile electronic device or may be a non-mobile electronic device. For example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), and the non-mobile electronic device may be a personal computer (PC), a television (TV), a teller machine, or an automated machine, which are not specifically limited in the embodiments of this application.

The electronic device provided in embodiments of this application includes any camera structure shown in <FIG>, and has the same beneficial effect as any camera structure shown in <FIG>. To avoid repetition, it will not be repeated here.

Claim 1:
A camera structure, comprising: a universal shaft (<NUM>), an outer gimbal support (<NUM>), an inner gimbal support (<NUM>) accommodated in the outer gimbal support (<NUM>), a gimbal carrier (<NUM>), a first driving mechanism (<NUM>), a second driving mechanism (<NUM>), and a camera module (<NUM>); wherein
the camera module (<NUM>) is movably connected to the outer gimbal support (<NUM>), and the camera module (<NUM>) is fixedly connected to the gimbal carrier (<NUM>);
two supporting portions (<NUM>) of the universal shaft (<NUM>) that are axially distributed along a first axis are hinged to the outer gimbal support (<NUM>), and two supporting portions (<NUM>) of the universal shaft (<NUM>) that are axially distributed along a second axis are hinged to the inner gimbal support (<NUM>), wherein the first axis intersects with the second axis;
the first driving mechanism (<NUM>) is connected to the outer gimbal support (<NUM>) and the inner gimbal support (<NUM>), to drive the inner gimbal support (<NUM>) to rotate relative to the outer gimbal support (<NUM>) along the first axis and/or the second axis;
the gimbal carrier (<NUM>) is slidably connected to a bottom portion of the inner gimbal support (<NUM>); and characterised in that
the second driving mechanism (<NUM>) is connected to the inner gimbal support (<NUM>) and the gimbal carrier (<NUM>), to drive the gimbal carrier (<NUM>) to rotate relative to the inner gimbal support (<NUM>) along a third axis, wherein the third axis is perpendicular to the first axis and the second axis.