Anti-shake motor and electronic equipment

Abstract

The invention relates to the technical field of electronic equipment, and discloses an anti-shake motor and electronic equipment. The anti-shake motor comprises a fixed structure, a movable structure and a spring system, the fixing structure comprises a shell and a magnet, the shell is provided with a containing cavity, and the magnet is connected to the shell; the movable structure comprises a movable seat and a coil, the movable seat is arranged in the containing cavity, the coil is connected to the movable seat, and the coil is arranged on one side, in the Z-axis direction, of the magnet and is opposite to the magnet; the spring system is arranged in the containing cavity, the spring system comprises a spring assembly, the spring assembly comprises an anti-shake spring, and the anti-shake spring is connected with the fixed structure and the movable structure; according to the anti-shake motor provided by the invention, the magnet is connected to the shell and the coil is connected to the coil, so that the movable structure can be prevented from moving due to magnetic interference, the anti-shake effect can be improved, and the production cost and the assembly cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to an anti-shake motor and electronic equipment. Background Art

[0002] The existing anti-shake motor structures can be mainly divided into three categories; the first category (reference patents: CN 204989717U, CN107991827 B) is driven by a piezoelectric sensor, and a magnet is arranged on the movable structure; the second category (reference patents: CN104040420 B, CN219143247 U) adopts a movable structure and a fixed structure with a ball bearing, and the movable structure and the fixed structure are connected by a spring for reset, and the magnet is installed on the movable structure, and the fixed structure is installed with a coil. When the coil is energized, the corresponding magnet pushes the movable structure to achieve an anti-shake effect; the third category (reference patents: CN217639914U, CN 108415140B, CN112327562 A, CN112793920 B, CN114217491B) adopts a spring structure, a magnet is arranged in the movable structure, and a coil is arranged in the fixed structure. The coil is energized to generate magnetic thrust with the magnet to perform anti-shake movement. Some designs adopt a bent spring, and the bent spring part is inserted in the damping groove to perform damping.

[0003] In the first type of prior art, due to the drive of the first type of piezoelectric sensor, the movable structure and the fixed structure use a slide rail to contact, which has high requirements on the surface accuracy of the material and requires multiple piezoelectric sensors, and the material and assembly costs are high; and the magnet is on the movable structure, the mass of the movable structure increases, which also increases power consumption; since the magnet is in the movable structure, the magnet in the movable structure is easily attracted and disturbed 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 disturbed by nearby magnets; the movable structure and the fixed structure adopt ball sliding friction contact, and the ball contact surface is easily scratched after reliability, which will cause nonlinear friction, 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, the movable structure includes a magnet, and the fixed structure is provided with a coil, which cannot avoid magnetic interference, has a poor anti-shake effect, and uses a bent spring, which has a high cost.

[0006] The movable structures of the first, second, and third categories mentioned above are all provided with magnets, which cannot avoid the influence of magnetic interference. As a result, the anti-shake motor needs to be stacked and placed at a distance from the magnetic conductive components inside the electronic device to avoid the magnetic interference problem, which is not conducive to the compact arrangement and stacking of the internal components of the electronic device and occupies a large space. Summary of the invention

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

[0008] An anti-shake motor has an optical axis, the optical axis is parallel to the Z-axis direction, and the anti-shake 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, the magnet is connected to the housing and arranged in the receiving cavity; the movable structure includes a movable seat and a coil, the movable seat is arranged in the receiving cavity, the coil is connected to the movable seat, the coil is arranged on one side of the magnet in the Z-axis direction and is arranged opposite to the magnet; the spring system is arranged in the receiving cavity, the spring system includes a spring assembly, the spring assembly includes an anti-shake spring, and the anti-shake spring is respectively connected to the fixed structure and the movable structure. By arranging the coil on one side of the magnet in the Z-axis direction, the coil is energized to generate a magnetic field and generate an electromagnetic force with the magnet, and the electromagnetic force pushes the movable structure to perform translational motion from an initial preset position along a direction perpendicular to the Z-axis direction (that is, the movement direction of the movable structure is perpendicular to the Z-axis direction).

[0009] Preferably, each of the spring assemblies comprises at least three anti-shake springs, and all the anti-shake springs in each of the spring assemblies are respectively arranged on the sides of the movable seat and are arranged in a rotation matrix around the optical axis.

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

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

[0012] In some embodiments, the anti-shake spring includes a fixed portion, a deformable portion, and a movable portion connected in sequence, the fixed portion is connected to the fixed structure, and the movable portion is connected to the movable structure; along the Z-axis direction, the length of the deformable portion is B, and the length of the anti-shake motor is H, satisfying: B>0.5H. By limiting the length of the deformable portion to be greater than 1 / 2 of the length of the anti-shake motor, the deformable portion 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, thereby increasing the safety factor of the movable structure in extreme displacement conditions such as large stroke displacement, thereby improving reliability.

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

[0014] In some embodiments, the deformation portion has a center line, the connection position between the deformation portion and the fixed portion has a first center point, the connection position between the deformation portion and the fixed portion has a second center point, the center line passes through the first center point and the second center point, and the 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 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 deformation portion includes a bending arm, and two ends of the bending arm are respectively connected to the fixed portion and the movable portion.

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

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

[0019] In some embodiments, the movable structure further includes a lens, wherein the lens is connected to the movable seat, and the lens has 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, which is connected to the movable seat and disposed opposite to the magnet.

[0022] The present invention further provides an electronic device, comprising the anti-shake motor described in any one of the above items.

[0023] Compared with the prior art, an anti-shake motor according to an embodiment of the present invention has the following beneficial effects: by connecting a magnet to a housing and connecting a coil to a movable seat, and arranging the coil on one side of the magnet in the Z-axis direction, when the movable structure is required to perform anti-shake movement, the coil is energized to generate a magnetic field and generates an electromagnetic force with the magnet, and the electromagnetic force pushes the movable structure to perform translational movement from an initial preset position in a direction perpendicular to the Z-axis direction (that is, the movement direction of the movable structure is perpendicular to the Z-axis direction); when the movable structure is not required to perform anti-shake movement, the coil loses power and the magnetic field, and the movable structure returns to the initial preset position driven by 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 loses power, the movable structure will not move due to magnetic interference when the coil loses power, 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, so that the anti-shake motor no longer needs to be stacked with magnetic conductive materials at a certain distance inside the electronic device to avoid the problem of magnetic interference, which helps to optimize the compact arrangement and stacking of the internal components of the electronic device and occupy a small space.

[0025] (3) Compared with the anti-shake motor in the prior art, 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 reduces power consumption. At the same time, compared with the anti-shake motor in the prior art, the anti-shake motor provided by the present invention has lower requirements on components and assembly accuracy, which helps to reduce production costs and assembly costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 yes Figure 1 AA section view;

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

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

[0030] Figure 5 Schematic diagram of the intersection of the optical axis and the center line to form an angle J provided in the first embodiment of the present invention;

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

[0032] Figure 7is a schematic diagram of the reference plane provided in the first embodiment of the present invention and the installation surface where the anti-shake arrangement is located intersecting to form an angle K;

[0033] Figure 8 is a second structural schematic diagram of the anti-shake spring provided in the first embodiment of the present invention;

[0034] Fig. 9 is a schematic diagram of an anti-shake motor provided in Embodiment 2 of the present invention;

[0035] Fig.10 Fig. 9 DD cross-sectional view;

[0036] Fig.11 is an exploded view of an anti-shake motor provided in the second embodiment of the present invention;

[0037] Fig.12 is a first structural schematic diagram of an anti-shake spring provided in Embodiment 2 of the present invention;

[0038] Fig.13 1 is a second structural schematic diagram of the anti-shake spring provided in the second embodiment of the present invention.

[0039] In the figure, 1, fixed structure; 11, housing; 12, magnet; 13, magnetic conductive sheet; 14, second circuit board; 111, housing; 112, cover; 113, accommodating cavity; 1111, second through hole; 1121, first through hole;

[0040] 2. movable structure; 21. movable seat; 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. Deformation 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, first center point; V, second center point. DETAILED DESCRIPTION

[0044] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

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

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

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

[0051] The present invention provides an electronic device, which includes any of the following anti-shake motors. The electronic device may be, but is not limited to, a smart phone, smart glasses, a camera, a sports watch, a law enforcement recorder, a driving recorder, a motion monitor, an unmanned aerial vehicle, a medical monitoring device, an environmental monitoring instrument, and the like.

[0052] Embodiment 1

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

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

[0055] Based on this technical solution, by connecting the magnet 12 to the housing 11 and connecting the coil 22 to the movable seat 21, and arranging 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 generate an electromagnetic force with the magnet 12, and the electromagnetic force pushes the movable structure 2 to perform a translational movement from an 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 is not needed to perform anti-shake movement, the coil 22 loses power and loses the magnetic field, and the movable structure 2 returns to the initial preset position driven by 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 power when it loses power, the magnetic field will be lost, so the movable structure 2 will not move due to magnetic interference when the coil 22 loses power, thereby improving the anti-shake effect.

[0056] By configuring the magnet 12 as a fixed structure 1, the movable structure 2 can avoid the influence of magnetic interference, so that the anti-shake motor no longer needs to be stacked with magnetic conductive materials at a distance inside the electronic device to avoid the magnetic interference problem, which helps to optimize the compact arrangement and stacking of various internal components of the electronic device and occupy a small space.

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

[0058] Optionally, there are one or more magnets 12 and one or more coils 22 , and the magnets 12 and the coils 22 correspond one to one.

[0059] In the first embodiment, there are two magnets 12 and two coils 22 , and the two magnets 12 correspond to the two coils 22 one by one.

[0060] See also Figure 1-Figure 4 , along the Z-axis direction, the length of the anti-shake motor is H.

[0061] The fixing structure 1 further includes a magnetic conductive sheet 13, which is located on the side of the magnet 12 away from the coil 22 and respectively connects the magnet 12 and the housing 11. The use of 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 on the housing 11, which helps to facilitate and quickly assemble the magnet 12.

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

[0063] A second through hole 1111 extending along the Z-axis direction and communicating with the accommodating cavity 113 is formed at one end of the cover 112 away from the cover 112 in the Z-axis direction. The optical axis 100 passes through the first through hole 1121 and the second through hole 1111.

[0064] In the first embodiment, the magnet 12 is distributed with two poles on one side; the advantage is that it can reduce the assembly production cost and improve the production efficiency.

[0065] In the first embodiment, the movable structure 2 further includes a lens 23 . The lens 23 is connected to the movable seat 21 . The lens 23 has an optical axis 100 .

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

[0067] In the first embodiment, the movable structure 2 further includes a first circuit board 24, which is connected to the coil 22. The first circuit board 24 can be used to power the coil 22 and control signals, and a complex circuit can be arranged on the first circuit board 24 to reduce costs.

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

[0069] In some implementations, instead of using the first circuit board 24 , the anti-shake spring 311 may be made of a conductive material, and the anti-shake spring 311 is used to provide power and signal control for the coil 22 .

[0070] Preferably, the spring system 3 includes a plurality of spring assemblies 31, and the plurality of spring assemblies 31 are arranged around the optical axis 100. The plurality of spring assemblies 31 arranged around the optical axis 100 can improve the connection reliability between the movable structure 2 and the fixed structure 1, and can also improve 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 the first embodiment, the spring system 3 includes four spring assemblies 31 .

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

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

[0075] In the first embodiment, each spring assembly 31 includes an anti-shake 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 the 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. The limited space in the accommodating cavity 113 can be utilized to the maximum extent, so that the anti-shake spring 311 obtains a larger spring compression or extension amount, and realizes a larger anti-shake stroke.

[0078] See also Figure 4-Figure 8The anti-shake spring 311 provided in the first embodiment includes a fixed portion 3111, a deformable portion 3112 and a movable portion 3113 connected in sequence, the fixed portion 3111 is connected to the fixed structure 1, and the movable portion 3113 is connected to the movable structure 2; along the Z-axis direction, the length of the deformable portion 3112 is B, which satisfies: B>0.5H, that is, the length of the deformable portion 3112 is greater than 1 / 2 of the length of the housing 11. In this way, the deformable portion 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 a direction perpendicular to the Z-axis, thereby increasing the safety factor of the movable structure 2 in extreme displacement conditions such as large stroke displacement, and improving reliability.

[0079] In the first embodiment, the fixed portion 3111 is connected to the housing 11 , and the movable portion 3113 is connected to the movable seat 21 .

[0080] In some other embodiments, the movable portion 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 deformation portion 3112 is C, which satisfies: 3C<B. That is, the ratio of the width of the deformation portion 3112 to the length of the deformation portion 3112 is less than 1:3. In this way, the deformation portion 3112 can 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 a direction perpendicular to the Z-axis, and help increase the safety factor of the movable structure 2 in extreme displacement conditions such as large stroke displacement, thereby improving reliability.

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

[0083] The 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 (three points are not collinear to determine a plane), or 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 (that is, the mounting surface 400 where the anti-shake spring 311 is located is formed by the intersection of the length direction of the anti-shake spring 311 and the width direction of the anti-shake spring 311), and the angle K between the mounting surface 400 where the anti-shake spring 311 is located and the reference plane 300 is greater than 70°. The angle K between the reference plane 300 and the mounting surface 400 is greater than 70°, which 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 performing translational motion in a direction perpendicular to the Z-axis direction, and further improve reliability.

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

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

[0088] Exemplarily, the bending arm 31122 may be a regular bending arm 31122 in the shape of a sine, a cosine, a wave, or a curve formed by a plurality of straight lines plus arc segments 311221, or may be an irregular bending arm 31122.

[0089] The bending arm 31122 can reduce the equivalent stress of the deformation part 3112 while increasing the elastic modulus of the deformation part 3112 in the Z-axis direction according to design requirements, so that the anti-shake spring 311 can 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 segments 311221 connected in sequence. By using at least three arc segments 311221 to form a curved wall, the elastic modulus of the deformation portion 3112 in the Z-axis direction can be flexibly adjusted according to requirements to meet the anti-shake requirements in different situations. At the same time, the use of the arc segment 311221 can help reduce stress concentration at various positions of the bending arm 31122, thereby improving the load-bearing capacity and service life of the spring piece.

[0091] In the first embodiment, the bending arm 31122 is in a wave shape formed by connecting a plurality of arc segments 311221 in sequence.

[0092] Embodiment 2

[0093] See also Figure 9-13 Different from the first embodiment, the fixing structure of the anti-shake motor provided in the second embodiment further includes a second circuit board 14 , and the second circuit board 14 is connected to the housing 111 .

[0094] The movable structure further includes a position sensor 25 , and the position sensor 25 is connected to the movable seat 21 . Specifically, in the second embodiment, the position sensor 25 is connected to the movable seat 21 through the first circuit board 24 .

[0095] Optionally, the number of the position sensor 25 may be one or more.

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

[0097] In the second embodiment, there are four magnets 12 and four coils 22 , and the four magnets 12 correspond to the four coils 22 one by one. There are two position sensors 25 , and the two position sensors 25 are arranged opposite to two of the magnets 12 .

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

[0099] The shape of the deformation portion 3112 of the anti-shake spring 311 provided in the second embodiment is different from that of the deformation portion 3112 of the anti-shake spring 311 provided in the first embodiment.

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

[0101] The anti-shake motor provided in Example 1 of the present invention is an open-loop anti-shake control structure, and the anti-shake motor provided in Example 2 is a closed-loop anti-shake control structure. The anti-shake motor provided by the present invention adopts an anti-shake spring suspension design and sets the magnet in a fixed structure, which can better prevent the magnetic interference of external equipment on the anti-shake motor. The anti-shake motor provided by the present invention has a simple structure, 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 some other embodiments, using an anti-shake motor assembly and superimposing other structures is also within the protection scope of the present invention.

[0103] In addition to the anti-shake motors provided in the above-mentioned embodiments 1 and 2, other similar anti-shake motors are also within the protection scope of the present invention, such as adding springs, adding coils, adding lenses, modifying the reflective component material, and stacking multiple lens anti-shake motor components or multiple focus component structures, and several improvements and replacements, these improvements and replacements should also be regarded as the protection scope of the present invention.

[0104] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An anti-shake motor, having an optical axis (100), wherein the optical axis (100) is parallel to a Z-axis direction, and characterized in that: include: A fixed structure (1), the fixed structure (1) comprising a housing (11) and a magnet (12), the housing (11) having a receiving cavity (113), the magnet (12) being connected to the housing (11) and disposed in the receiving cavity (113); A movable structure (2), the movable structure (2) comprising a movable seat (21) and a coil (22), the movable seat (21) being arranged in the accommodating cavity (113), the coil (22) being connected to the movable seat (21), and the coil (22) being arranged on one side of the magnet (12) in the Z-axis direction and being arranged opposite to the magnet (12); A spring system (3), wherein the spring system (3) is arranged in the accommodating cavity (113), the spring system (3) comprises a spring assembly (31), the spring assembly (31) comprises an anti-shake spring (311), and the anti-shake spring (311) is respectively connected to the fixed structure (1) and the movable structure (2).

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) comprises a fixed portion (3111), a deformable portion (3112) and a movable portion (3113) which are connected in sequence, the fixed portion (3111) is connected to the fixed structure (1), and the movable portion (3113) is connected to the movable structure (2); Along the Z-axis direction, the length of the deformation portion (3112) is B, and the length of the anti-shake motor is H, satisfying: B>0.5H.

3. The anti-shake motor according to claim 2, characterized in that: The width of the deformation portion (3112) is C, satisfying: 3C<B.

4. The anti-shake motor according to claim 2, characterized in that: The deformation portion (3112) has a center line (200), a connection position between the deformation portion (3112) and the fixed portion (3111) has a first center point (U), a connection position between the deformation portion (3112) and the fixed portion (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 an 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 plane (300) or the second center point (V) and the optical axis (100) form a reference plane (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, and the angle K between the mounting surface (400) where the anti-shake spring (311) is located and the reference plane (300) is greater than 70°.

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

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

8. The anti-shake motor according to claim 1, characterized in that: The fixed structure (1) further comprises a magnetic conductive sheet (13), wherein the magnetic conductive sheet (13) is located on a side of the magnet (12) facing away from the coil (22) and is respectively connected to the magnet (12) and the housing (11).

9. The anti-shake motor according to claim 1, characterized in that: The movable structure (2) further comprises a position sensor (25), wherein the position sensor (25) is connected to the movable seat (21) and is arranged opposite to the magnet (12).

10. An electronic device, characterized in that: It comprises an anti-shake motor according to any one of claims 1 to 9.

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