Ball type anti-shake motor and electronic equipment

Abstract

The utility model relates to the technical field of camera shooting, and discloses a ball type anti-shake motor and electronic equipment. The ball type anti-shake motor comprises a circuit board arranged on the side wall of a base, a first detection unit comprises a first emitting polar plate and a first receiving polar plate which are arranged on the circuit board, and a first floating polar plate arranged on the side face of a first mover, the first detection unit is used for detecting the movement condition of the first mover in the focusing direction, and the second detection unit is used for detecting the movement condition of the first mover in the focusing direction. The second detection unit comprises a second floating polar plate connected with the first floating polar plate and a second receiving polar plate arranged on the second mover, the second floating polar plate and the second receiving polar plate are oppositely arranged, and the second detection unit is used for detecting the movement condition of the second mover in the shaking direction. An elastic sheet structure is electrically connected with the circuit board, and the elastic sheet structure is used for limiting the second mover in the focusing direction; and the second receiving polar plate is electrically connected with the elastic sheet structure so as to realize the connection between the second detection unit and the circuit board.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera technology field especially relates to a ball type anti shake motor and electronic equipment. BACKGROUND

[0002] Ball type anti shake motor drives the ball to roll in the rolling groove arranged on the mover through electromagnetic force, and then drives the mover to move, real-time offsets the displacement deviation caused by external vibration, thereby realizing focusing and optical anti shake.

[0003] The inventor finds that the current ball type anti shake motor at least has the following disadvantages: taking the ball as the transmission mechanism of the motor, which leads to the separation of the mover and the circuit board in the motor, resulting in the need for additional design of wire lines for the elements such as sensors or coils that need to be electrically connected if they are arranged on the mover. The additional design of wire lines may even affect the movement of the mover. In order to avoid the additional design of wire lines, the current method usually adopts magnetic field detection to determine the movement of the mover. However, the magnetic field detection method is easily affected by the environment, resulting in poor detection effect. SUMMARY

[0004] The utility model embodiment aims to provide a ball type anti shake motor and electronic equipment, through the spring structure that second mover is limited to the function of connecting with circuit board, and then realizing the electric connection of the receiving plate of second detection unit by the spring structure, realize the capacitive displacement detection of limiting ball type anti shake motor, improve the displacement detection precision and reduce the detection cost at the same time.

[0005] To solve the above technical problems, the embodiment of the utility model provides a ball type anti shake motor, which comprises: a first mover, a second mover, a first ball, a second ball, a first detection unit, a second detection unit, a circuit board and a base; the first mover is relatively displaced with the base in a focusing direction by the first ball; the second mover is relatively displaced with the base in a shaking direction by the second ball; wherein the shaking direction is perpendicular to the focusing direction; the circuit board is arranged on the side wall of the base; the first detection unit comprises a first transmitting plate and a first receiving plate arranged on the circuit board, and a first floating plate arranged on the side of the first mover, and the first detection unit is used for detecting the movement of the first mover; the second detection unit comprises: a second floating plate connected with the first floating plate, and a second receiving plate arranged on the second mover, the second floating plate and the second receiving plate are arranged oppositely, and the second detection unit is used for detecting the movement of the second mover; the ball type anti shake motor further comprises: a spring structure electrically connected with the circuit board, the spring structure is used for limiting the second mover in the focusing direction; and the second receiving plate is electrically connected with the spring structure.

[0006] The embodiment of the utility model provides a kind of electronic equipment, including the ball type anti-shake motor of above.

[0007] The embodiment of the utility model relative to prior art, first detection unit includes the first emitter plate and the first receiving plate of being arranged on circuit board, and the first floating plate of being arranged on the side of first mover, first detection unit is used to detect the moving condition of first mover in focusing direction, second detection unit includes: the second floating plate of being connected with first floating plate, and the second receiving plate of being arranged on second mover, second floating plate is oppositely arranged with second receiving plate, and second detection unit is used to detect the moving condition of second mover in shaking direction. There is spring structure with circuit board electrically connected, and spring structure is used to limit second mover in focusing direction;Second receiving plate is electrically connected with spring structure, and second floating plate and first floating plate have same electric signal simultaneously, and the potential difference between second floating plate and second receiving plate is formed, and then the capacitance structure for detecting the moving condition of second mover is formed, and the connection of second detection unit and circuit board is indirectly realized. Capacitive displacement detection of limiting ball type anti-shake motor is realized, and the detection cost is reduced while improving displacement detection precision.

[0008] In addition, the second floating plate is arranged at the bottom of the first mover, the second receiving plate is arranged at the bottom of the second mover, and the second floating plate is oppositely arranged with the second receiving plate.

[0009] In addition, the second receiving plate includes: an X-axis receiving plate and a Y-axis receiving plate, wherein the second floating plate and the X-axis receiving plate cooperate to detect the moving distance of the second mover in a first direction, the second floating plate and the Y-axis receiving plate cooperate to detect the moving distance of the second mover in a second direction, and the first direction and the second direction are perpendicular to each other; the X-axis receiving plate and the Y-axis receiving plate are respectively connected with different spring structures.

[0010] In addition, the number of the X-axis receiving plate and the Y-axis receiving plate is two; the number of the spring structure is four, and the two X-axis receiving plates and the two Y-axis receiving plates are connected with different spring structures.

[0011] In addition, the four spring structures are respectively arranged at four corners of a quadrangular prism structure composed of the circuit board, and the four spring structures are in the same plane.

[0012] In addition, the second floating plate includes: an X-axis floating plate and a Y-axis floating plate connected with the X-axis floating plate; the X-axis floating plate is oppositely arranged with the X-axis receiving plate, and the Y-axis floating plate is oppositely arranged with the Y-axis receiving plate.

[0013] In addition, the ball-type anti-shake motor further comprises a driving unit; the driving unit comprises a first driving magnet arranged on the first mover and a first driving coil arranged on the base, the first driving magnet is arranged opposite to the first driving coil, and the first driving magnet is used for driving the first mover to move in the focusing direction; the driving unit comprises a second driving magnet arranged on the second mover and a second driving coil arranged on the base, the second driving magnet is arranged opposite to the second driving coil, and the second driving magnet is used for driving the second mover to move in the shaking direction.

[0014] In addition, the number of the first receiving pole plates is two, and the two first receiving pole plates are sequentially arranged in the focusing direction.

[0015] In addition, the ball-type anti-shake motor further comprises a gland arranged on the second mover; the gland abuts against the second mover in the focusing direction, and the gland cooperates with the elastic sheet structure to limit the movement of the second mover in the focusing direction. BRIEF DESCRIPTION OF DRAWINGS

[0016] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are included to further provide explanatory aspects of the present embodiments. Unless otherwise noted, like reference numbers and designations in the figures indicate like elements, with the figures not necessarily drawn to scale. In the figures:

[0017] Figure 1 is an exploded structural schematic view of a ball-type anti-shake motor according to an embodiment of the present scheme;

[0018] Figure 2 is a structural schematic view of a combination of a circuit board and a first mover in a ball-type anti-shake motor according to an embodiment of the present scheme;

[0019] Figure 3 is a structural schematic view of a second mover in a ball-type anti-shake motor according to an embodiment of the present scheme;

[0020] Figure 4 is a structural schematic view of a first detection unit in a ball-type anti-shake motor according to an embodiment of the present scheme;

[0021] Figure 5 is a structural schematic view of a second detection unit in a ball-type anti-shake motor according to an embodiment of the present scheme;

[0022] Figure 6 is a top view structural schematic view of a combination of a circuit board and a first mover in a ball-type anti-shake motor according to an embodiment of the present scheme;

[0023] Figure 7is a top view structural schematic diagram of the combination of the circuit board and the second mover in the ball type anti-shake motor according to the embodiment of the present application;

[0024] Figure 8 is a schematic diagram of related parameters of the second floating plate and the second receiving plate in the ball type anti-shake motor according to the embodiment of the present application;

[0025] Figure 9 is a structural schematic diagram of the combination of the second mover and the gland in the ball type anti-shake motor according to the embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are proposed in order to make the readers better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed by the present application can be implemented.

[0027] The division of the following embodiments is for the convenience of description, and should not constitute any limitation on the specific implementation of the present application, and the embodiments can be combined and referenced with each other on the premise of no contradiction.

[0028] The embodiments of the present application relate to a ball type anti-shake motor, as shown in the accompanying drawings, the ball type anti-shake motor comprises a circuit board 1, a base 2, a first mover 31, a second mover 32, a first ball 41, a second ball 42, a first detection unit and a second detection unit; the first mover 31 is relatively displaced with the base 2 in a focusing direction by means of the first ball 41; the second mover 32 is relatively displaced with the base 2 in a shaking direction by means of the second ball 42; wherein the shaking direction is perpendicular to the focusing direction; the circuit board 1 is arranged on the side wall of the base 2. Figure 1 As shown in the accompanying drawings, the first detection unit comprises a first transmitting plate 52 and a first receiving plate 53 arranged on the circuit board 1, and a first floating plate 51 arranged on the side of the first mover 31 (as shown by the dotted line), the first detection unit is used for detecting the movement of the first mover 31. Figure 2 As shown in the accompanying drawings, the first detection unit comprises a first transmitting plate 52 and a first receiving plate 53 arranged on the circuit board 1, and a first floating plate 51 arranged on the side of the first mover 31 (as shown by the dotted line), the first detection unit is used for detecting the movement of the first mover 31. Figure 3 As shown in the accompanying drawings, the first detection unit comprises a first transmitting plate 52 and a first receiving plate 53 arranged on the circuit board 1, and a first floating plate 51 arranged on the side of the first mover 31 (as shown by the dotted line), the first detection unit is used for detecting the movement of the first mover 31. Figure 3 As shown in the accompanying drawings, the first detection unit comprises a first transmitting plate 52 and a first receiving plate 53 arranged on the circuit board 1, and a first floating plate 51 arranged on the side of the first mover 31 (as shown by the dotted line), the first detection unit is used for detecting the movement of the first mover 31. As shown in the accompanying drawings, the first detection unit comprises a first transmitting plate 52 and a first receiving plate 53 arranged on the circuit board 1, and a first floating plate 51 arranged on the side of the first mover 31 (as shown by the dotted line), the first detection unit is used for detecting the movement of the first mover 31.

[0029] The embodiment of the utility model relative to prior art, first detection unit includes setting on the circuit board first emitter plate and first receiving plate, and setting in first motor side face first floating plate, first detection unit is used for detecting the movement condition of first motor in focusing direction, second detection unit includes: with first floating plate connection second floating plate, and setting on the second motor second receiving plate, second floating plate and second receiving plate are opposite setting, second detection unit is used for detecting the movement condition of second motor in jitter direction. There is a spring structure with circuit board electric connection, and the spring structure is used for limiting the second motor in focusing direction;Second receiving plate and spring structure electric connection, while second floating plate and first floating plate have same electric signal, constitute the potential difference between second floating plate and second receiving plate, and then constitute the capacitance structure for detecting the movement condition of second motor, indirectly realize the connection of second detection unit and circuit board. Realize the capacitance type displacement detection of limit ball type anti-shake motor, improve displacement detection precision and reduce detection cost at the same time.

[0030] The structure of the first detection unit and the second detection unit will be described below respectively:

[0031] As shown in Figure 2 to Figure 3 The first detection unit includes: a first floating plate 51 disposed on the first motor 31, and a first emitter plate 52 and a first receiving plate 53 disposed on the circuit board 1; the first floating plate 51 and the first emitter plate 52 are oppositely disposed in a direction perpendicular to the focusing direction, and the first floating plate 51 and the first receiving plate 53 are oppositely disposed; when the first motor 31 moves in the focusing direction, the facing area of the first floating plate 51 and the first receiving plate 53 changes, and the facing area of the first floating plate 51 and the first emitter plate 52 always remains unchanged.

[0032] The capacitance formed by the first floating plate 51, the first emitter plate 52 and the first receiving plate 53 can be regarded as a capacitance C 11 formed by the first emitter plate 52 and the first floating plate 51, and a capacitance C 12 formed by the first floating plate 51 and the first receiving plate 53 in series. The physical formula of each formed capacitance refers to the formula of a flat plate capacitance: C=εS / 4πkd; where ε represents the dielectric constant of the medium, which is determined by the medium between the plates, such as air, water, etc.; k represents the electrostatic force constant, also known as Coulomb's constant, which represents two point charges of 1C in vacuum, and the force between them is 8.987551×109N when the distance between the two point charges is 1m, that is, k=8.987551×109N·m 2C; S represents the facing area (projected area) of the two plates; d represents the vertical distance between the two plates. Therefore, in the case that the facing area of the first floating plate 51 and the first transmitting plate 52 remains unchanged, the capacitance signal changes according to the change of the facing area of the first floating plate 51 and the first receiving plate 53. Since the change of the facing area of the first floating plate 51 and the first receiving plate 53 is related to the moving distance of the first mover in the focusing direction, the moving distance of the first mover in the focusing direction can be obtained according to the change of the capacitance signal.

[0033] The number of the first receiving plates 53 in the first detection unit is two; the two first receiving plates 53 are sequentially arranged in the focusing direction; when the first mover 31 moves in the focusing direction, the first change amount of the facing area of the first floating plate 51 and one of the first receiving plates 53 is equal to the second change amount of the facing area of the first floating plate 51 and the other first receiving plate 53. That is, the decrease amount of the facing area of the first floating plate and one of the first receiving plates is the same as the increase amount of the facing area of the first floating plate and the other first receiving plate, or the increase amount of the facing area of the first floating plate and one of the first receiving plates is the same as the decrease amount of the facing area of the first floating plate and the other first receiving plate. Such design facilitates subsequent differential calculation of the capacitance signal to correct or denoise the capacitance signal and the like, eliminates the noise affecting the accuracy of the calculation results caused by environmental factors or human operation factors, and improves the sensitivity of the lens position movement control. The differential calculation formula can be: magnification * (CX1-CX2) / (CX1+CX2); wherein CX1 represents the capacitance signal formed by the first floating plate and one of the first receiving plates, and CX2 represents the capacitance signal formed by the first floating plate and the other first receiving plate.

[0034] The capacitance structure composed of the first floating plate 51, the first transmitting plate 52 and the two first receiving plates 53 is as shown in FIG. 3. Figure 4As shown, the size of the first floating electrode plate 51 is smaller than the size of the region jointly covered by the first emitter plate 52 and the two first receiver plates 53, so as to ensure that the first floating electrode plate 51 is always within the region jointly covered by the first emitter plate 52 and the two first receiver plates 53 during the movement of the first floating electrode plate 51 driven by the first mover in the focusing direction, i.e., the edge of the first floating electrode plate 51 will not exceed the edge of the first emitter plate 52, and the edge of the first floating electrode plate 51 will also not exceed the edge of the first receiver plate 53 during the movement of the first floating electrode plate 51, and the widest width H1 of the first floating electrode plate 51 in the focusing direction is smaller than the width H2 of the first emitter plate 52 in the focusing direction, and H2-H1 is greater than or equal to the maximum stroke value of the first mover in the focusing direction. The length L1 of the first floating electrode plate 51 perpendicular to the focusing direction is smaller than the total length L2 of the region jointly covered by the first emitter plate 52 and the two first receiver plates 53.

[0035] Regarding the second detection unit, it includes a second floating electrode plate connected with the first floating electrode plate, and a second receiver plate arranged on the second mover, and the second floating electrode plate is arranged opposite to the second receiver plate, and the second detection unit is used for detecting the movement of the second mover. The second floating electrode plate is arranged at the bottom of the first mover, the second receiver plate is arranged at the bottom of the second mover, and the second floating electrode plate is arranged opposite to the second receiver plate.

[0036] As shown in Figure 5 The second receiver plate includes an X-axis receiver plate 612 and a Y-axis receiver plate 622, wherein the X-axis floating electrode plate 611 in the second floating electrode plate cooperates with the X-axis receiver plate 612 to detect the movement distance of the second mover in the first direction (X-axis direction), and the Y-axis floating electrode plate 621 in the second floating electrode plate cooperates with the Y-axis receiver plate 622 to detect the movement distance of the second mover in the second direction (Y-axis direction), and the first direction and the second direction are perpendicular; since the signals generated by the X-axis receiver plate 612 and the Y-axis receiver plate 622 of the second detection unit need to be collected respectively, the X-axis receiver plate 612 and the Y-axis receiver plate 622 are respectively connected with different said sheet structures 9.

[0037] In addition, as shown in Figure 6As shown, this is a combined structure of circuit board 1 and first mover 31. Both the X-axis floating electrode plate 611 and the Y-axis floating electrode plate 621 are located at the bottom of the first mover, and are on the same plane. The X-axis floating electrode plate 611 and the Y-axis floating electrode plate 621 are connected via sheet metal or wires. Simultaneously, the X-axis floating electrode plate 611 or the Y-axis floating electrode plate 621 closest to the first floating electrode plate is connected to the first floating electrode plate, so that the X-axis floating electrode plate 611 and the Y-axis floating electrode plate 621 carry the same electrical signal as the first floating electrode plate. The second detection unit can construct a capacitor structure using the emitting electrode plate of the first detection unit, thus eliminating the need for a separate emitting electrode plate connected to the circuit board in the second detection unit. The capacitor detection structure in the X-axis direction of the second detection unit can be equivalent to the capacitor C formed by the first emitting electrode plate 52 and the first floating electrode plate 51. 11 The capacitance C formed by the X-axis floating electrode 611 and the X-axis receiving electrode 612 21 The sum of the equivalent capacitances Similarly, the capacitance detection structure in the Y-axis direction of the second detection unit can be equivalent to: the capacitance C formed by the first emitting plate 52 and the first floating plate 51. 11 The capacitance C formed by the Y-axis floating electrode 621 and the Y-axis receiving electrode 622 22 The sum of the equivalent capacitances

[0038] like Figure 7 As shown, this is the combined structure of circuit board 1 and second mover 32. Both the X-axis receiving electrode 612 and the Y-axis receiving electrode 622 are located on the bottom surface of the second mover. There are two X-axis receiving electrode 612 and two Y-axis receiving electrode 622; there are four spring contact structures 9, with each of the two X-axis receiving electrode 612 and two Y-axis receiving electrode 622 connected to a different spring contact structure 9. The purpose of setting two X-axis receiving electrode 612 and two Y-axis receiving electrode 622 is the same as that of setting two first receiving electrode plates: to correct or denoise the capacitor signal, eliminating noise that affects the accuracy of the calculation results due to environmental factors or human operation, and improving the sensitivity of position movement control. The four spring contact structures are respectively located at the four vertices of the quadrangular prism structure formed by the circuit board, and the four spring contact structures are on the same plane.

[0039] like Figure 8 The diagram shows the structure of the X-axis floating electrode plate 611 and the X-axis receiving electrode plate 612, and the Y-axis floating electrode plate 621 and the Y-axis receiving electrode plate 622. The second moving part moves along the first direction (…). Figure 8When the second mover moves along the left-right direction (as shown), the edge of the Y-axis floating electrode 621 will never exceed the edge of the Y-axis receiving electrode 622, that is, 'a' is greater than the maximum stroke of the second mover in the first direction. Similarly, when the second mover moves along the second direction (as shown), the edge of the Y-axis floating electrode 621 will never exceed the edge of the Y-axis receiving electrode 622, that is, 'a' is greater than the maximum stroke of the second mover in the first direction. Figure 8 When the second mover moves in the vertical direction (as shown), the edge of the X-axis floating electrode 611 will never exceed the edge of the X-axis receiving electrode 612, meaning b is greater than the maximum stroke of the second mover in the second direction. This configuration ensures that the movement of the second mover in the first direction will not affect the capacitance signals generated by the Y-axis floating electrode 621 and the Y-axis receiving electrode 622, and that the movement of the second mover in the second direction will not affect the capacitance signals generated by the X-axis floating electrode 611 and the X-axis receiving electrode 612. This prevents crosstalk between the detection of the first and second directions, improving detection accuracy.

[0040] Additionally, a second receiving electrode plate or a lead-out point for a wire connected to the second receiving electrode plate is pre-embedded in the plastic parts of the motor. The lead-out point is typically located directly below the spring-loaded structure. Figure 9 As shown, a welding point 91 is reserved directly below each spring structure to facilitate the electrical connection between the spring structure and the second receiving electrode plate.

[0041] In addition, such as Figure 3 As shown, the ball-bearing image stabilization motor includes a drive unit comprising a first drive magnet 101 mounted on a first mover and a first drive coil mounted on a base. The first drive magnet 101 and the first drive coil are positioned opposite each other and are used to drive the first mover to move in the focusing direction. The first drive magnet 101 forms a fixed magnetic field. The first drive coil is connected to a circuit board and is powered and controlled by an external circuit and IC. When the first drive coil is energized, it generates an induced magnetic field, which interacts with the fixed magnetic field formed by the first drive magnet 101 to produce a Lorentz force. Since the first drive coil is fixed to the base 2 and cannot move, the Lorentz force is fed back to the first drive magnet 101. Due to the presence of the first ball bearing, the first mover 31, the carrier of the first drive magnet 101, can move relative to the base, thereby achieving the driving of the first mover. By changing the current in the first drive coil, the magnitude of the Lorentz force can be controlled, thereby changing the force on the first mover and controlling the distance of movement.

[0042] Similarly, regarding the driving force of the second mover, such as Figure 9 As shown, the driving unit includes a second driving magnet 102 disposed on the second mover and a second driving coil disposed on the base. The second driving magnet 102 and the second driving coil are disposed opposite to each other and are used to drive the second mover to move in the jitter direction. The driving principle is the same as that described above for the first mover.

[0043] The moving direction of the second mover is at least two directions (a first direction and a second direction), and corresponding second driving magnets and corresponding second driving coils are arranged in the two different directions respectively to realize displacement control in different directions.

[0044] In addition, in order to ensure that the second mover is not driven by the first mover, the second mover only generates movement in the shaking direction and does not generate displacement change in the focusing direction. Figure 1 As shown in the figure, the ball type anti-shake motor further comprises a gland 7 arranged in contact with the second mover 32; the gland 7 abuts against the second mover 32 in the focusing direction and limits the movement of the second mover 32 in the focusing direction. The spring sheet structure is arranged at a corresponding position of the gland 7 and is welded with the second receiving pole plate at the welding point 91, so that the spring sheet structure 9 is electrically connected with the second receiving pole plate through the welding point 91 by means of laser spot welding or the like.

[0045] In addition, as shown in the figure, the ball type anti-shake motor further comprises a shell 8 covering the periphery of all component structures, which protects the internal structure of the ball type anti-shake motor. Figure 1

[0046] In order to reduce the volume of the ball type anti-shake motor, the internal components of the ball type anti-shake motor can be arranged in overlap in the focusing direction, for example, the second mover 32 is arranged inside the first mover 31, that is, the first mover 31 is a hollow frame structure, and the middle region is used for accommodating the lens, and the frame is arranged outside the second mover 32. Such a structure makes the second mover 32 at least partially overlap with the first mover 31 in the focusing direction, so that the thickness of the ball type anti-shake motor in the focusing direction can be reduced. Similarly, the base 2 at least partially overlaps with the first mover 31 in the focusing direction, so that the thickness of the ball type anti-shake motor in the focusing direction can also be reduced. The circuit board 1 is arranged on the side wall of the base 2, so as to facilitate the electrical connection of the first detection unit and the second detection unit arranged in the ball type anti-shake motor. The circuit board 1 can be a flexible circuit board FPC, which is more convenient to arrange on the outer surface of the base.

[0047] Another feasible embodiment of the utility model relates to an electronic device, comprising the ball type anti-shake motor as described above. The ball type anti-shake motor is used in cooperation with the lens, realizes the collection of image, and automatically calibrates the vibration of external environment, improves the quality of image collection.

[0048] Compared with the related art, the electronic device provided in the embodiment of the utility model comprises the ball type anti-shake motor provided in the foregoing embodiment, so that the electronic device also has the technical effects provided in the foregoing embodiment, which will not be described herein.

[0049] ​Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the utility model, and in actual application, various changes can be made to them in form and details without departing from the spirit and scope of the utility model.

Claims

1. A ball-type anti-shake motor, characterized in that, include: First moving part, second moving part, first ball bearing, second ball bearing, first detection unit, second detection unit, circuit board and base; The first moving part uses the first ball to generate relative displacement with the base in the focusing direction; The second moving element utilizes the second ball bearing to achieve relative displacement with the base in the shaking direction; wherein, the shaking direction is perpendicular to the focusing direction; The circuit board is disposed on the side wall of the base; The first detection unit includes a first transmitting electrode plate and a first receiving electrode plate disposed on the circuit board, and a first floating electrode plate disposed on the side of the first moving part. The first detection unit is used to detect the movement of the first moving part. The second detection unit includes: a second floating electrode plate connected to the first floating electrode plate, and a second receiving electrode plate disposed on the second moving part. The second floating electrode plate and the second receiving electrode plate are disposed opposite to each other. The second detection unit is used to detect the movement of the second moving part. The ball bearing type image stabilization motor further includes: a spring structure electrically connected to the circuit board, the spring structure being used to limit the second mover in the focusing direction; the second receiving electrode plate being electrically connected to the spring structure.

2. The ball bearing anti-shake motor according to claim 1, characterized in that, The second floating electrode plate is disposed at the bottom of the first moving part, and the second receiving electrode plate is disposed at the bottom of the second moving part, with the second floating electrode plate and the second receiving electrode plate being disposed opposite to each other.

3. The ball bearing anti-shake motor according to claim 2, characterized in that, The second receiving electrode plate includes an X-axis receiving electrode plate and a Y-axis receiving electrode plate, wherein the second floating electrode plate cooperates with the X-axis receiving electrode plate to detect the movement distance of the second moving part in a first direction, and the second floating electrode plate cooperates with the Y-axis receiving electrode plate to detect the movement distance of the second moving part in a second direction, wherein the first direction and the second direction are perpendicular to each other; The X-axis receiving electrode and the Y-axis receiving electrode are respectively connected to different spring sheet structures.

4. The ball bearing anti-shake motor according to claim 3, characterized in that, The number of X-axis receiving electrode plates and the number of Y-axis receiving electrode plates are both two; The number of spring-loaded structures is four, with the two X-axis receiving plates and the two Y-axis receiving plates each connected to a different spring-loaded structure.

5. The ball bearing anti-shake motor according to claim 4, characterized in that, The four spring-loaded structures are respectively disposed at the four vertices of the quadrangular prism structure formed by the circuit board, and the four spring-loaded structures are in the same plane.

6. The ball bearing anti-shake motor according to claim 3, characterized in that, The second floating electrode plate includes: an X-axis floating electrode plate and a Y-axis floating electrode plate connected to the X-axis floating electrode plate; The X-axis floating electrode plate is arranged opposite to the X-axis receiving electrode plate, and the Y-axis floating electrode plate is arranged opposite to the Y-axis receiving electrode plate.

7. The ball-type anti-shake motor according to claim 1, characterized in that, Also includes: Drive unit; The driving unit includes: a first driving magnet disposed on the first moving part, and a first driving coil disposed on the base, wherein the first driving magnet and the first driving coil are disposed opposite to each other and are used to drive the first moving part to move in the focusing direction; The driving unit includes: a second driving magnet disposed on the second moving part, and a second driving coil disposed on the base. The second driving magnet and the second driving coil are disposed opposite to each other and are used to drive the second moving part to move in the jitter direction.

8. The ball-type anti-shake motor according to claim 1, characterized in that, There are two first receiving plates, which are arranged sequentially in the focusing direction.

9. The ball-type anti-shake motor according to any one of claims 1 to 8, characterized in that, Also includes: A pressure cap that fits the second moving part; The pressure cap abuts against the second mover in the focusing direction, and the pressure cap cooperates with the spring structure to restrict the movement of the second mover in the focusing direction.

10. An electronic device, characterized in that, include: The ball bearing anti-shake motor as described in any one of claims 1 to 9.

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