Stabilization motor and electronic device

Abstract

The present invention relates to the technical field of electronic devices. Disclosed are a stabilization motor and an electronic device. The stabilization motor comprises a fixed structure, a movable structure and a spring system. The fixed structure comprises a housing and a magnet, wherein the housing is provided with an accommodating cavity, and the magnet is connected to the housing; the movable structure comprises a movable seat and a coil, wherein the movable seat is arranged in the accommodating cavity, and the coil is connected to the movable seat and arranged on one side of the magnet in a Z-axis direction and opposite the magnet; and the spring system is arranged in the accommodating cavity, and comprises a spring assembly, wherein the spring assembly comprises a stabilization spring connected to the fixed structure and the movable structure, respectively. In the stabilization motor provided by the present invention, by connecting the magnet to the housing and the coil to the movable seat, the movable structure can be prevented from moving due to magnetic interference, thereby helping to improve the stabilization effect and reduce production and assembly costs.

Description

A shake-stabilizing motor and electronic device Technical Field

[0001] This invention relates to the field of electronic equipment technology, and in particular to a stabilization motor and electronic equipment. Background Technology

[0002] Existing image stabilization motor structures can be mainly divided into three categories: The first category (referencing patents: CN 204989717 U, CN107991827 B) uses a piezoelectric sensor for driving, with a magnet on the movable structure; the second category (referencing patents: CN104040420 B, CN219143247 U) uses a movable structure and a fixed structure with ball bearings, connected by a spring for reset. The magnet is mounted on the movable structure, and a coil is installed on the fixed structure. When the coil is energized, the corresponding magnet pushes the movable structure to achieve the image stabilization effect; the third category (referencing patents: CN217639914U, CN 108415140B, CN112327562 A, CN112793920) (B, CN114217491B) adopts a spring-type structure. The movable structure is equipped with a magnet, and the fixed structure is equipped with a coil. The coil is energized and generates a magnetic thrust with the magnet to perform anti-shaking motion. Part of the design uses a bent spring, which is inserted into a damping groove to provide damping.

[0003] In the first type of prior art, due to the first type of piezoelectric sensor driving, the movable structure and the fixed structure are in contact by a slide rail, which requires high precision of the material surface and requires multiple piezoelectric sensors, resulting in high material and assembly costs; while the magnet is on the movable structure, which increases the mass of the movable structure and also increases power consumption; since the magnet is in the movable structure, the magnet in the movable structure is easily attracted and interfered with by nearby magnets, resulting in poor anti-shake effect.

[0004] In the second type of prior art, because of the second type of spring and ball structure, the movable structure contains a magnet, and the magnet in the movable structure is easily attracted and interfered with by nearby magnets; the movable structure and the fixed structure use ball sliding friction contact, which can easily scratch the ball contact surface after reliability, leading to nonlinear friction force, resulting in poor anti-shake performance and noise during anti-shake movement.

[0005] In the third type of prior art, the third type of spring structure has a movable structure containing a magnet and a fixed structure with a coil. It cannot avoid magnetic interference, has poor anti-shake effect, and uses a bent spring, which is costly.

[0006] The first, second, and third types of movable structures all have magnets, which cannot avoid the influence of magnetic interference. This means that the anti-shake motor needs to be stacked with the magnetic conductive components at a distance inside the electronic device to avoid the magnetic interference problem. This is not conducive to the compact arrangement and stacking of internal components of the electronic device and occupies a lot of space. Summary of the Invention

[0007] With the aim of at least solving one of the technical problems existing in the prior art, the present invention aims to provide a stabilization motor and an electronic device having the stabilization motor, wherein the stabilization motor can prevent the movable structure from moving due to magnetic interference, thereby helping to improve the stabilization effect and reduce production and assembly costs.

[0008] A shake-stabilizing motor has an optical axis parallel to the Z-axis. The motor includes a fixed structure, a movable structure, and a spring system. The fixed structure includes a housing and a magnet. The housing has a receiving cavity, and the magnet is connected to the housing and disposed within the receiving cavity. The movable structure includes a movable base and a coil. The movable base is disposed within the receiving cavity, and the coil is connected to the movable base. The coil is located on one side of the magnet in the Z-axis direction and is opposite to the magnet. The spring system is disposed within the receiving cavity and includes a spring assembly, which includes a shake-stabilizing spring connected to both the fixed structure and the movable structure. By placing the coil on the side of the magnet in the Z-axis direction, the coil is energized, generating a magnetic field and an electromagnetic force between itself and the magnet. This electromagnetic force propels the movable structure from an initial preset position to translate in a direction perpendicular to the Z-axis direction (i.e., the direction of movement of the movable structure is perpendicular to the Z-axis direction).

[0009] Preferably, each spring assembly includes at least three anti-shake springs, and all the anti-shake springs in each spring assembly are respectively disposed on the side of the movable base and arranged in a rotational matrix around the optical axis.

[0010] In some embodiments, the anti-shake spring has a sheet-like structure, and the angle between the thickness direction of the anti-shake spring and the optical axis is greater than 70° and less than 110°.

[0011] Preferably, the thickness direction of the anti-shake spring is perpendicular to the optical axis.

[0012] In some embodiments, the anti-shake spring includes a fixed part, a deformable part, and a movable part connected in sequence. The fixed part is connected to the fixed structure, and the movable part is connected to the movable structure. Along the Z-axis, the length of the deformable part is B, and the length of the anti-shake motor is H, satisfying that B > 0.5H. By limiting the length of the deformable part to be greater than half the length of the anti-shake motor, the deformable part can have a longer length in the Z-axis direction, which can improve the reliability of the anti-shake spring when the movable structure moves in a direction perpendicular to the Z-axis. This increases the safety factor of the movable structure under extreme displacement conditions such as large stroke displacement, thereby improving reliability.

[0013] In some embodiments, the width of the deformed portion is C, satisfying: 3C < B.

[0014] In some embodiments, the deformable part has a center line, the connection position between the deformable part and the fixed part has a first center point, the connection position between the deformable part and the fixed part has a second center point, the center line passes through the first center point and the second center point, and the included angle J between the center line and the optical axis is less than 10°.

[0015] In some embodiments, the first center point and the optical axis form a reference plane or the second center point and the optical axis form a reference plane, the thickness direction of the anti-shake spring is perpendicular to the mounting surface where the anti-shake spring is located, and the included angle K between the mounting surface where the anti-shake spring is located and the reference plane is greater than 70°.

[0016] In some embodiments, the deformable part includes a curved arm, the two ends of which are respectively connected to the fixed part and the movable part.

[0017] In some embodiments, the curved arm comprises at least three arcuate segments connected in sequence.

[0018] In some embodiments, the fixing structure further includes a magnetic sheet located on the side of the magnet away from the coil and connected to both the magnet and the housing.

[0019] In some embodiments, the movable structure further includes a lens connected to the movable base, the lens having the optical axis.

[0020] In some embodiments, the movable structure further includes a first circuit board connected to the coil.

[0021] In some embodiments, the movable structure further includes a position sensor connected to the movable base and disposed opposite to the magnet.

[0022] The present invention also provides an electronic device comprising the anti-shake motor described in any of the preceding claims.

[0023] Compared with the prior art, the anti-shake motor of this invention has the following advantages: By connecting a magnet to the outer shell and a coil to the movable base, and placing the coil on the side of the magnet in the Z-axis direction, when the movable structure needs to perform anti-shake movement, the coil is energized to generate a magnetic field and an electromagnetic force is generated between it and the magnet. The electromagnetic force pushes the movable structure to translate from the initial preset position in a direction perpendicular to the Z-axis direction (i.e., the movement direction of the movable structure is perpendicular to the Z-axis direction); when the movable structure does not need to perform anti-shake movement, the coil is de-energized and loses its magnetic field, and the movable structure returns to the initial preset position under the drive of the elastic force of the anti-shake spring; since the magnet is configured as a fixed structure and the coil is configured as a movable structure, and the coil loses its magnetic field when it is de-energized, the movable structure will not move due to magnetic interference when the coil is de-energized, which helps to improve the anti-shake effect.

[0024] (2) By configuring the magnet as a fixed structure, the movable structure can avoid the influence of magnetic interference. This allows the anti-shake motor to avoid magnetic interference problems without needing to be stacked with the magnetic material at a distance inside the electronic device. This helps to optimize the compact arrangement and stacking of the internal components of the electronic device, and takes up little space.

[0025] (3) Compared with the existing anti-shake motor, the anti-shake motor provided by the present invention can make the mass and rotational inertia of the movable structure lower by configuring the magnet as a fixed structure, which is beneficial to high-frequency anti-shake performance and power consumption reduction. At the same time, compared with the existing anti-shake motor, the anti-shake motor provided by the present invention has lower requirements for components and assembly precision, which helps to reduce production and assembly costs. Attached Figure Description

[0026] Figure 1 is a top view of a shake-stabilizing motor provided in Embodiment 1 of the present invention;

[0027] Figure 2 is a cross-sectional view AA of Figure 1;

[0028] Figure 3 is an exploded view of a shake-stabilizing motor provided in Embodiment 1 of the present invention;

[0029] Figure 4 is a schematic diagram of the first structure of the anti-shake spring provided in Embodiment 1 of the present invention;

[0030] Figure 5 is a schematic diagram showing the angle J formed by the intersection of the optical axis and the center line according to Embodiment 1 of the present invention;

[0031] Figure 6 is a side view of the anti-shake spring provided in Embodiment 1 of the present invention;

[0032] Figure 7 is a schematic diagram showing the angle K formed by the intersection of the reference plane and the mounting surface where the anti-shake arrangement is located, as provided in Embodiment 1 of the present invention.

[0033] Figure 8 is a schematic diagram of the second structure of the anti-shake spring provided in Embodiment 1 of the present invention;

[0034] Figure 9 is a schematic diagram of a shake-stabilizing motor provided in Embodiment 2 of the present invention;

[0035] Figure 10 shows the DD cross-sectional view of Figure 9;

[0036] Figure 11 is an exploded view of a shake-stabilizing motor provided in Embodiment 2 of the present invention;

[0037] Figure 12 is a schematic diagram of the first structure of the anti-shake spring provided in Embodiment 2 of the present invention;

[0038] Figure 13 is a schematic diagram of the second structure of the anti-shake spring provided in Embodiment 2 of the present invention.

[0039] In the diagram, 1 is the fixing structure; 11 is the outer shell; 12 is the magnet; 13 is the magnetic conductive sheet; 14 is the second circuit board; 111 is the housing; 112 is the cover; 113 is the accommodating cavity; 1111 is the second through hole; and 1121 is the first through hole.

[0040] 2. Movable structure; 21. Movable base; 22. Coil; 23. Lens; 24. First circuit board; 25. Position sensor;

[0041] 3. Spring system; 31. Spring assembly; 311. Anti-shake spring; 3111. Fixed part; 3112. Deformable part; 3113. Movable part; 31121. First straight arm; 31122. Bending arm; 31123. Second straight arm; 311221. Arc segment;

[0042] 100, Optical axis; 200, Center line; 300, Reference plane; 400, Mounting surface where the anti-shake spring is located;

[0043] U, the first center point; V, the second center point. Detailed Implementation

[0044] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having" and any variations thereof in the description, claims and foregoing drawings of this application are intended to cover non-exclusive inclusion.

[0050] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0051] This invention provides an electronic device, which includes a stabilization motor as described below. The electronic device can be, but is not limited to, a smartphone, smart glasses, a camera, a sports watch, a law enforcement recorder, a dashcam, a motion monitor, a drone, a medical monitoring device, and an environmental monitoring instrument, etc.

[0052] Example 1

[0053] As shown in Figures 1-8, the anti-shake motor provided in Embodiment 1 of the present invention has an optical axis 100, which is parallel to the Z-axis, and includes a fixed structure 1, a movable structure 2, and a spring system 3.

[0054] The fixed structure 1 includes a housing 11 and a magnet 12. The housing 11 has a receiving cavity 113. The magnet 12 is connected to the housing 11 and disposed in the receiving cavity 113. The movable structure 2 includes a movable seat 21 and a coil 22. The movable seat 21 is disposed in the receiving cavity 113. The coil 22 is connected to the movable seat 21 and is disposed on one side of the magnet 12 in the Z-axis direction and is opposite to the magnet 12. The spring system 3 is disposed in the receiving cavity 113. The spring system 3 includes a spring assembly 31. The spring assembly 31 includes an anti-shake spring 311. The anti-shake spring 311 is connected to the fixed structure 1 and the movable structure 2 respectively.

[0055] Based on this technical solution, by connecting the magnet 12 to the outer shell 11 and the coil 22 to the movable base 21, and by placing the coil 22 on one side of the magnet 12 in the Z-axis direction, when the movable structure 2 needs to perform anti-shake movement, the coil 22 is energized to generate a magnetic field and generates an electromagnetic force with the magnet 12. The electromagnetic force pushes the movable structure 2 to translate from the initial preset position in a direction perpendicular to the Z-axis direction (that is, the movement direction of the movable structure 2 is perpendicular to the Z-axis direction); when the movable structure 2 does not need to perform anti-shake movement, the coil 22 is de-energized and loses its magnetic field, and the movable structure 2 returns to the initial preset position under the drive of the elastic force of the anti-shake spring 311; since the magnet 12 is configured as a fixed structure 1 and the coil 22 is configured as a movable structure 2, and the coil 22 loses its magnetic field when it is de-energized, the movable structure 2 will not move due to magnetic interference when the coil 22 is de-energized, thus improving the anti-shake effect.

[0056] By configuring magnet 12 as a fixed structure 1, the movable structure 2 can avoid the influence of magnetic interference. This allows the anti-shake motor to avoid magnetic interference problems without needing to be stacked with magnetic materials at a distance inside the electronic device. This helps to optimize the compact arrangement and stacking of internal components of the electronic device, taking up less space.

[0057] Compared with existing anti-shake motors, the anti-shake motor provided by the present invention, by configuring the magnet 12 as a fixed structure 1, can reduce the mass and rotational inertia of the movable structure 2, which is beneficial to high-frequency anti-shake performance and reduces power consumption. At the same time, compared with existing anti-shake motors, the anti-shake motor provided by the present invention has lower requirements for component and assembly precision, which helps to reduce production and assembly costs.

[0058] Optionally, the number of magnets 12 can be one or more, and the number of coils 22 can be one or more, with a one-to-one correspondence between magnets 12 and coils 22.

[0059] In this first embodiment, there are two magnets 12 and two coils 22, with each magnet 12 and coil 22 corresponding to the other.

[0060] Referring to Figures 1-4, the length of the anti-shake motor along the Z-axis is H.

[0061] The fixing structure 1 also includes a magnetic conductive sheet 13, which is located on the side of the magnet 12 away from the coil 22 and is connected to the magnet 12 and the housing 11 respectively. Using the magnetic conductive sheet 13 can increase the magnetic field strength passing through the coil 22 and reduce power consumption; the magnetic conductive sheet 13 can also better fix the magnet 12 to the housing 11, which helps to facilitate the convenient and quick assembly of the magnet 12.

[0062] The outer casing 11 includes a housing 111 and a cover 112. The cover 112 is connected to one end of the housing 111 in the Z-axis direction and forms a cavity 113 with the housing 111. The magnet 12 is connected to the housing 111. The cover 112 has a first through hole 1121 that extends along the Z-axis and communicates with the cavity 113. The upper cover is located on the side of the coil 22 away from the magnet 12, and the upper cover is made of a magnetically conductive material. Using a magnetically conductive material for the upper cover can increase the magnetic field strength passing through the coil 22 and reduce power consumption.

[0063] The cover 112 has a second through hole 1111 at one end in the Z-axis direction away from the cover 112, which extends along the Z-axis and communicates with the accommodating cavity 113. The optical axis 100 passes through the first through hole 1121 and the second through hole 1111.

[0064] In this first embodiment, the magnet 12 adopts a single-sided double magnetic pole distribution; its advantage is that it can reduce assembly and production costs and improve production efficiency.

[0065] In this first embodiment, the movable structure 2 also includes a lens 23, which is connected to the movable base 21 and has an optical axis 100.

[0066] Alternatively, lens 23 may be a concave lens 23 or a convex lens 23.

[0067] In this first embodiment, the movable structure 2 also includes a first circuit board 24, which is connected to the coil 22. The first circuit board 24 can supply power and control signals to the coil 22, and complex circuits can be laid out on the first circuit board 24 to reduce costs.

[0068] In this first embodiment, the first circuit board 24 is also connected to the movable base 21.

[0069] In some implementations, instead of using the first circuit board 24, a shock absorber spring 311 can be made of conductive material, which powers and controls the coil 22.

[0070] Preferably, the spring system 3 includes multiple spring assemblies 31 arranged around the optical axis 100. Using multiple spring assemblies 31 arranged around the optical axis 100 can improve both the connection reliability between the movable structure 2 and the fixed structure 1, and the anti-shake performance of the anti-shake motor.

[0071] More preferably, the spring system 3 includes at least four spring assemblies 31.

[0072] In this first embodiment, the spring system 3 includes four spring assemblies 31.

[0073] Optionally, each spring assembly 31 includes one or more anti-shake springs 311.

[0074] In this first embodiment, the anti-shake spring 311 has a sheet-like structure.

[0075] In this first embodiment, each spring assembly 31 includes a shock-absorbing spring 311.

[0076] Optionally, the angle between the thickness direction of the anti-shake spring 311 and the optical axis 100 is greater than 70° and less than 110°.

[0077] In this first embodiment, the angle between the thickness direction of the anti-shake spring 311 and the optical axis 100 is 90°, that is, the thickness direction of the anti-shake spring 311 is perpendicular to the optical axis 100. This maximizes the use of the limited space within the accommodating cavity 113, allowing the anti-shake spring 311 to obtain a larger spring compression or extension, thus achieving a larger anti-shake stroke.

[0078] Referring to Figures 4-8, the anti-shake spring 311 provided in Embodiment 1 includes a fixed part 3111, a deformable part 3112, and a movable part 3113 connected in sequence. The fixed part 3111 is connected to the fixed structure 1, and the movable part 3113 is connected to the movable structure 2. Along the Z-axis direction, the length of the deformable part 3112 is B, which satisfies: B > 0.5H, that is, the length of the deformable part 3112 is greater than 1 / 2 of the length of the outer shell 11. In this way, the deformable part 3112 can have a longer length in the Z-axis direction, which can improve the reliability of the anti-shake spring 311 when the movable structure 2 moves in the direction perpendicular to the Z-axis, thereby increasing the safety factor of the movable structure 2 under extreme displacement conditions such as large stroke displacement and improving reliability.

[0079] In this first embodiment, the fixed part 3111 is connected to the outer shell 11, and the movable part 3113 is connected to the movable base 21.

[0080] In some other embodiments, the movable part 3113 may be connected to the coil 22 and the anti-shake spring 311 may be made of a conductive material so that the anti-shake spring 311 is electrically connected to the coil 22.

[0081] The width of the deformable part 3112 is C, which satisfies: 3C < B. That is, the ratio of the width to the length of the deformable part 3112 is less than 1:3. This allows the deformable part 3112 to have a larger elastic modulus in the Z-axis direction, which can improve the reliability of the anti-shake spring 311 when the movable structure 2 moves in the direction perpendicular to the Z-axis. This helps to increase the safety factor of the movable structure 2 under extreme displacement conditions such as large stroke displacement, and improves its reliability.

[0082] The deformable part 3112 has a center line 200. The connection position between the deformable part 3112 and the fixed part 3111 has a first center point U, and the connection position between the deformable part 3112 and the fixed part 3111 has a second center point V. The center line 200 passes through the first center point U and the second center point V. The included angle J between the center line 200 and the optical axis 100 is less than 10°. An included angle J of less than 10° can reduce the error caused by the angular deviation between the spring and the optical axis 100, which helps to improve the anti-shake effect. At the same time, a smaller included angle J also helps to optimize the design of each component within the receiving cavity 113, so that each component can be arranged more compactly and lightly within the receiving cavity 113.

[0083] The included angle J can be any angle value less than 10°, such as 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, etc., and is not limited here.

[0084] The first center point U and the optical axis 100 form a reference plane 300, or the second center point V and the optical axis 100 form a reference plane 300. That is, the reference plane 300 can be determined by the first center point U and the optical axis (the three points are not collinear to determine a plane), or it can be determined by the second center point V and the optical axis 100.

[0085] The thickness direction of the anti-shake spring 311 is perpendicular to the mounting surface 400 where the anti-shake spring 311 is located (i.e., the mounting surface 400 where the anti-shake spring 311 is located is formed by the intersection of the length direction and the width direction of the anti-shake spring 311). The included angle K between the mounting surface 400 where the anti-shake spring 311 is located and the reference surface 300 is greater than 70°. An included angle K greater than 70° between the reference surface 300 and the mounting surface 400 can increase the spring coefficient of the roll axis of the spring system 3, thereby increasing the safety factor of the movable structure 2 in extreme displacement conditions such as large stroke displacement when it translates in a direction perpendicular to the Z-axis, and further improving reliability.

[0086] The included angle K can be any angle greater than 70°, such as 71°, 72°, 73°, 74°, 75°, 76°, 77°, 78°, 79°, 80°, 85°, etc., and is not limited here.

[0087] The deformable part 3112 includes a curved arm 31122, and the two ends of the curved arm 31122 are respectively connected to the fixed part 3111 and the movable part 3113.

[0088] For example, the curved arm 31122 can be a regular curved arm 31122, such as a sine shape, a cosine shape, a wave shape, or a curve formed by multiple straight lines and arc segments 311221, or it can be an irregular curved arm 31122.

[0089] By adopting a bending arm 31122, the equivalent stress of the deformable part 3112 can be reduced when the elastic modulus of the deformable part 3112 in the Z-axis direction is increased according to design requirements. This allows the anti-shake spring 311 to maintain a high safety factor in extreme motion states in all directions, thereby improving reliability.

[0090] The bending arm 31122 includes at least three arc-shaped segments 311221 connected in sequence. By using at least three arc-shaped segments 311221 to form the bending wall, the elastic modulus of the deformable portion 3112 in the Z-axis direction can be flexibly adjusted according to requirements to adapt to anti-vibration needs under different conditions. Simultaneously, using arc-shaped segments 311221 helps reduce stress concentration at various locations of the bending arm 31122, improving the load-bearing capacity and service life of the spring.

[0091] In this first embodiment, the curved arm 31122 is wavy, formed by connecting multiple arc segments 311221 in sequence.

[0092] Example 2

[0093] Referring to Figures 9-13, unlike Embodiment 1, the anti-shake motor fixing structure provided in Embodiment 2 also includes a second circuit board 14, which is connected to the housing 111.

[0094] The movable structure also includes a position sensor 25, which is connected to the movable base 21. Specifically, in this second embodiment, the position sensor 25 is connected to the movable base 21 via a first circuit board 24.

[0095] Optionally, the number of position sensors 25 can be one or more.

[0096] Preferably, a position sensor 25 and a magnet 12 are arranged opposite each other.

[0097] In this second embodiment, there are four magnets 12 and four coils 22, with each magnet 12 and coil 22 corresponding to the other. There are two position sensors 25, which are positioned opposite to two of the magnets 12.

[0098] In this second embodiment, the spring system 3 includes four spring assemblies 31. Each spring assembly 31 includes three anti-shake springs 311, which are respectively disposed on the side of the movable base 21 and arranged in a rotational matrix around the optical axis 100.

[0099] The shape of the deformable portion 3112 of the anti-shake spring 311 provided in this embodiment 2 is different from that of the deformable portion 3112 of the anti-shake spring 311 provided in embodiment 1.

[0100] Specifically, the deformable portion 3112 of the anti-shake spring 311 provided in this embodiment 2 further includes a first straight arm 31121 and a second straight arm 31123. The curved arm 31122 is connected to the fixed portion 3111 via the first straight arm 31121, and the curved arm 31122 is connected to the movable portion 3113 via the second straight arm 31123. The curved arm 31122 provided in this embodiment 2 has a different shape than the curved arm 31122 provided in embodiment 1.

[0101] The anti-shake motor provided in Embodiment 1 of this invention is an open-loop anti-shake control structure, and the anti-shake motor provided in Embodiment 2 is a closed-loop anti-shake control structure. The anti-shake motor provided by this invention adopts an anti-shake spring suspension design and sets the magnet in a fixed structure, which can better prevent magnetic interference from external devices to the anti-shake motor. Moreover, the anti-shake motor provided by this invention has a simple structure, which can better improve production efficiency, reduce production costs, has a small size, is compatible with more other designs, and has a simpler and more compact structure.

[0102] In other embodiments, such as using a stabilization motor assembly superimposed with other structures, the invention is also within its scope of protection.

[0103] In addition to the image stabilization motors provided in Embodiments 1 and 2 above, other similar image stabilization motors are also within the scope of protection of this invention. For example, adding springs, adding coils, adding lenses, modifying the material of the reflective components, and stacking multiple lens image stabilization motor components or multiple focusing component structures are all improvements and substitutions. These improvements and substitutions should also be considered within the scope of protection of this invention.

[0104] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A stabilization motor having an optical axis (100) parallel to the Z-axis direction, characterized in that, include: A fixing structure (1) includes a housing (11) and a magnet (12). The housing (11) has a receiving cavity (113), and the magnet (12) is connected to the housing (11) and disposed in the receiving cavity (113). Movable structure (2), the movable structure (2) includes a movable base (21) and a coil (22), the movable base (21) is disposed in the accommodating cavity (113), the coil (22) is connected to the movable base (21), the coil (22) is disposed on one side of the magnet (12) in the Z-axis direction and is disposed opposite to the magnet (12); A spring system (3) is disposed in the accommodating cavity (113). The spring system (3) includes a spring assembly (31), which includes a shock-absorbing spring (311). The shock-absorbing spring (311) is connected to the fixed structure (1) and the movable structure (2) respectively.

2. The anti-shake motor according to claim 1, characterized in that, The angle between the thickness direction of the anti-shake spring (311) and the optical axis (100) is greater than 70° and less than 110°; the anti-shake spring (311) includes a fixed part (3111), a deformable part (3112) and a movable part (3113) connected in sequence, the fixed part (3111) is connected to the fixed structure (1), and the movable part (3113) is connected to the movable structure (2); Along the Z-axis, the length of the deformable part (3112) is B, and the length of the anti-shake motor is H, satisfying that: B > 0.5H.

3. The anti-shake motor according to claim 2, characterized in that, The width of the deformable part (3112) is C, which satisfies: 3C < B.

4. The anti-shake motor according to claim 2, characterized in that, The deformable part (3112) has a center line (200), the connection position of the deformable part (3112) and the fixed part (3111) has a first center point (U), the connection position of the deformable part (3112) and the fixed part (3111) has a second center point (V), the center line (200) passes through the first center point (U) and the second center point (V), and the included angle J between the center line (200) and the optical axis (100) is less than 10°.

5. The anti-shake motor according to claim 4, characterized in that, The first center point (U) and the optical axis (100) form a reference surface (300), or the second center point (V) and the optical axis (100) form a reference surface (300). The thickness direction of the anti-shake spring (311) is perpendicular to the mounting surface (400) where the anti-shake spring (311) is located. The included angle K between the mounting surface (400) where the anti-shake spring (311) is located and the reference surface (300) is greater than 70°.

6. The anti-shake motor according to claim 2, characterized in that, The deformable part (3112) includes a curved arm (31122), the two ends of which are respectively connected to the fixed part (3111) and the movable part (3113).

7. The anti-shake motor according to claim 6, characterized in that, The curved arm (31122) includes at least three arc-shaped segments (311221) connected in sequence.

8. The anti-shake motor according to claim 1, characterized in that, The fixing structure (1) also includes a magnetic conductive sheet (13), which is located on the side of the magnet (12) away from the coil (22) and is connected to the magnet (12) and the outer shell (11) respectively.

9. The anti-shake motor according to claim 1, characterized in that, The movable structure (2) also includes a position sensor (25), which is connected to the movable base (21) and is positioned opposite to the magnet (12).

10. An electronic device, characterized in that, Includes the anti-shake motor according to any one of claims 1-9.

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