CN113241922B

CN113241922B - Optical anti-shake motor

Info

Publication number: CN113241922B
Application number: CN202110426849.5A
Authority: CN
Inventors: 董怿
Original assignee: Beijing Kelifor Technology Co ltd
Current assignee: Beijing Kelifor Technology Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2022-08-02
Anticipated expiration: 2041-04-20
Also published as: CN113241922A

Abstract

The utility model relates to an optics anti-shake motor, including first base member, can produce relative motion's second base member with first base member to and the cover is established at the casing of first base member and second base member periphery, install first magnetite on the first base member, first coil is installed to the position that corresponds first magnetite of second base member, first coil configuration can produce along the x axle and/or with the drive power of x axle vertically y axle, so that first base member and second base member produce relative motion, wherein, still install first magnetism spare on the first base member, first magnetism spare is located one side of first coil dorsad first magnetite. Relative position of first magnetite and first magnetism spare is relatively fixed all the time for both can increase drive power through setting up of first magnetism spare, and the magnetic attraction between first magnetism spare and the first magnetite can not exert an influence to the motion of second base member yet, can avoid the magnetic attraction of production to the impedance of drive power, guaranteed that the motor has great drive power and drive stroke.

Description

Optical anti-shake motor

Technical Field

The present disclosure relates to the field of optical technologies, and in particular, to an optical anti-shake motor.

Background

Along with the requirement of users on clear imaging, various functions for improving the imaging definition are introduced into the existing camera module, such as adding an optical anti-shake motor or an automatic focusing motor. Most of the optical anti-shake motors adopt a voice coil control mode, that is, the optical device is controlled to displace along a certain direction through the electromagnetic action between the coil and the magnet so as to compensate the shake generated during shooting. In the related art, in order to increase the driving force of the optical anti-shake motor, a magnetic member is generally installed on a side of the coil facing away from the magnet to concentrate the distribution of magnetic lines of force, thereby increasing the driving force of the motor.

However, since a magnetic attraction force is generated between the magnetic member and the magnet, the magnetic attraction force affects the driving stroke of the motor, although the magnetic member can function as a flux. Specifically, when the magnet is driven by the coil to move relative to the magnet, the magnetic member generates a magnetic attraction force resisting the driving, so that the movement stroke of the optical device becomes smaller when the coil generates the same driving force.

Disclosure of Invention

An object of the present disclosure is to provide an optical anti-shake motor to at least partially solve the problems occurring in the related art.

In order to achieve the above object, the present disclosure provides an optical anti-shake motor including a first base, a second base capable of moving relative to the first base, and a housing covering the peripheries of the first base and the second base, wherein a first magnet is mounted on the first base, a first coil is mounted on the second base at a position corresponding to the first magnet, the first coil is configured to generate a driving force along an x-axis and/or a y-axis perpendicular to the x-axis, so that the first base and the second base move relative to each other,

the first magnetic piece is further mounted on the first base body and located on one side, back to the first magnet, of the first coil.

Optionally, the first magnetic member includes a magnetic conductive sheet or a second magnet.

Optionally, the first magnetic part includes a magnetic conductive sheet and a second magnet, and the magnetic conductive sheet is disposed on one side of the second magnet facing away from the first coil.

Alternatively, the first base includes a main body provided on one side of the second base in a z-axis direction orthogonal to the x-axis and the y-axis, and a mounting wall extending from the main body to the other side of the second base, the first magnet being mounted to the main body, and the first magnetic member being mounted to the mounting wall.

Optionally, the N pole and the S pole of the first magnet are arranged to be distributed along the driving direction of the first coil, and at least one side of the first magnet along the driving direction of the first coil is provided with a second magnetic member.

Optionally, the N pole and the S pole of the first magnet are arranged to be distributed along a z-axis direction orthogonal to the x axis and the y axis, and a third magnetic member is disposed on a side of the first magnet facing away from the first coil.

Optionally, the first coil is configured to generate a driving force capable of driving the first substrate and the second substrate to generate a relative linear movement in the direction of the x-axis and/or the y-axis and/or a relative rotation in the plane of the x-axis and the y-axis.

Optionally, the first coil comprises at least one first sub-coil capable of generating a driving force along the x-axis, and at least one second sub-coil capable of generating a driving force along the y-axis,

the first sub-coil is configured to generate a driving force capable of driving the first base body and the second base body to generate relative linear movement in the x-axis direction and/or relative rotation in a plane where the x-axis and the y-axis are located, and/or

The second sub-coil is configured to generate a driving force capable of driving the first substrate and the second substrate to generate a relative linear movement in the y-axis direction and/or a relative rotation in a plane in which the x-axis and the y-axis are located.

Optionally, the motor further comprises a first sensor for detecting a relative position of the first base and the second base in the direction along the x-axis, a second sensor for detecting a relative position in the direction along the y-axis, and a third sensor for detecting a relative rotational position in a plane in which the x-axis and the y-axis are located.

Optionally, the second base is provided with a fourth magnetic member on a side of the first coil facing away from the first magnet, and the fourth magnetic member is configured such that, when a deviation occurs between the first base and the second base relative to an initial position, a magnetic attraction force generated by the fourth magnetic member and the first magnet can cause a tendency of the first base or the second base to return to the initial position.

Optionally, the motor further comprises a first ball disposed between the first base and the second base in a contacting manner, and a first ball groove for accommodating the first ball is formed on the first base or the second base.

Optionally, the motor further comprises a spring plate connected between the first base and the second base, the spring plate comprising a first elastic plate for connecting with the first base, a second elastic plate for connecting with the second base, and a spring wire connected between the first elastic plate and the second elastic plate.

Optionally, the motor further includes a first sliding shaft disposed on the first base and a second sliding shaft disposed on the second base and contacting with the first sliding shaft, and the first sliding shaft and the second sliding shaft are disposed in a crossing manner and perpendicular to a z-axis orthogonal to the x-axis and the y-axis, respectively.

Optionally, the motor further includes a flexible circuit board disposed on the second base, an elastic arm is formed at an edge of the flexible circuit board, and the elastic arm is connected to the first base.

Optionally, the motor further comprises a suspension wire connected between the first base and the second base.

Through the technical scheme, in the drive process of optics anti-shake motor, the relative position of first magnetite and first magnetism spare is relatively fixed all the time, make both can improve magnetic density through setting up of first magnetism spare, thereby increase drive power is with increase movement stroke, and magnetic attraction between first magnetism spare and the first magnetite also can not exert an influence to the motion of second base member, the magnetic attraction that can avoid producing is to the impedance of drive power, guaranteed that the motor has great drive power and drive stroke.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is an exploded view of an optical anti-shake motor with an auto-focus motor provided by an exemplary embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of the optical anti-shake motor of FIG. 1 taken along a plane in which the x-axis and the z-axis lie;

FIG. 3 is a cross-sectional view of the optical anti-shake motor of FIG. 1 taken along a plane in which the x-axis and the y-axis lie;

FIG. 4 is a schematic diagram of an arrangement of magnetic members provided in an exemplary embodiment of the present disclosure;

FIG. 5 is a magnetic flux distribution plot for the embodiment of FIG. 4;

FIG. 6 is a schematic view of an arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 7 is a magnetic flux distribution plot for the embodiment of FIG. 6;

FIG. 8 is a schematic view of an arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 9 is a magnetic flux distribution plot for the embodiment of FIG. 8;

FIG. 10 is a schematic view of an arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 11 is a magnetic flux distribution plot for the embodiment of FIG. 10;

FIG. 12 is a schematic view of the arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 13 is a magnetic flux distribution plot for the embodiment of FIG. 12;

FIG. 14 is a schematic view of an arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 15 is a schematic view of the arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 16 is a schematic view of the arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 17 is a schematic view of an arrangement of a magnetic member with a first magnet and a first coil provided in another exemplary embodiment of the present disclosure;

FIG. 18 is a schematic view of the arrangement of the magnetic member with the first magnet and the first coil according to another exemplary embodiment of the present disclosure;

FIG. 19 is a schematic diagram of a first coil arrangement provided in an exemplary embodiment of the present disclosure;

FIG. 20 is a schematic diagram of a first coil arrangement provided by another exemplary embodiment of the present disclosure;

FIG. 21 is a schematic diagram of a first coil arrangement provided by another exemplary embodiment of the present disclosure;

FIG. 22 is a schematic diagram of a first coil arrangement provided by another exemplary embodiment of the present disclosure;

FIG. 23 is a schematic diagram of a first coil arrangement provided by another exemplary embodiment of the present disclosure;

FIG. 24 is a schematic diagram of a first coil arrangement provided by another exemplary embodiment of the present disclosure;

fig. 25 is an exploded view of an optical anti-shake motor provided in an exemplary embodiment of the present disclosure with part of the structure omitted;

fig. 26 is an exploded view of an optical anti-shake motor provided in another exemplary embodiment of the present disclosure, with part of the structure omitted;

FIG. 27 is a side view of an optical anti-shake motor provided in an exemplary embodiment of the present disclosure with part of the structure omitted;

fig. 28 is an exploded view of an optical anti-shake motor provided in an exemplary embodiment of the present disclosure with part of the structure omitted;

fig. 29 is an exploded view of an optical anti-shake motor provided in an exemplary embodiment of the present disclosure, with part of the structure omitted;

fig. 30 is an exploded view of an optical anti-shake motor provided in an exemplary embodiment of the present disclosure, with part of the structure omitted;

fig. 31 is a schematic view of an optical anti-shake motor provided in an exemplary embodiment of the present disclosure, with part of the structure omitted.

Description of the reference numerals

100-a first substrate, 101-a body, 102-a mounting wall, 103-a boss, 110-a first magnet, 120-a first magnetic element, 121-a magnetic conductive sheet, 122-a second magnet, 130-a second magnetic element, 140-a third magnetic element, 150-a first sliding shaft, 200-a second substrate, 20-an image sensor, 210-a first coil, 211-a first sub-coil, 212-a second sub-coil, 220-a fourth magnetic element, 230-a first ball, 240-a reed, 241-a first elastic sheet, 242-a second elastic sheet, 243-a reed, 250-a second sliding shaft, 260-a flexible circuit board, 261-an elastic arm, 262-a connecting sheet, 270-a suspension wire, 300-a third substrate, 310-a second coil, 320-fifth magnetic element, 330-second ball, 400-housing.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of the directional terms such as "upper, lower, left, and right" are defined according to the drawing direction of the drawings, and "inner" and "outer" are directed to the self-profile of the corresponding component. Terms such as "first," "second," and the like, used in this disclosure are intended to distinguish one element from another, without order or importance. Further, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements.

Referring to fig. 1 and 2, the present disclosure provides an optical anti-shake motor, which may include a first substrate 100, a second substrate 200 capable of moving relative to the first substrate 100, and a housing 400 covering the peripheries of the first substrate 100 and the second substrate 200, wherein a first magnet 110 is mounted on the first substrate 100, a first coil 210 is mounted on the second substrate 200 at a position corresponding to the first magnet 110, and the first coil 210 is configured to be capable of generating a driving force along an x-axis or a y-axis or both the x-axis and the y-axis, so that the first substrate 100 and the second substrate 200 move relative to each other to achieve the anti-shake purpose.

In practical applications, one of the first base 100 and the second base 200 may be kept stationary, and only the other one generates movement, and the embodiment of the present disclosure will be explained by taking the first base 100 as a fixed base and the second base 200 as an example, wherein the first base 100 may be fixed on the housing 400 and mounted to the other terminal through the housing 400. Here, the housing 400 may protect the internal structure of the motor. In the disclosed embodiment, at least one of the first substrate 100 and the second substrate 200 may be mounted with an optical device, and the optical device may include a mirror portion and a sensor portion, for example, the mirror portion may be mounted to the first substrate 100 and the sensor portion may be mounted to the second substrate 200. Specifically, referring to fig. 1, the image sensor 20 of the sensor portion may be mounted on the second substrate 200, and the mirror portion (not shown) may be directly mounted on the first substrate 100, or a third substrate 300 may be movably mounted on the first substrate 100, a second coil 310 may be mounted on the third substrate 300, and the second substrate 200 may be separately mounted with a magnet corresponding to the second coil 310, or may share the first magnet 110. The third base 300 may be made movable relative to the first base 100 along a z-axis orthogonal to the x-axis and the y-axis by the driving force of the second coil 310, and in this case, the mirror portion may be mounted to the third base 300 such that the mirror portion is mounted to the second base 200 through the third base 300. In this way, the second substrate 200 can drive the image sensor 20 to move to achieve anti-shake, and the third substrate 300 can drive the mirror portion to move to achieve focusing. The first substrate 100 and the third substrate 300 are independent from each other.

The first magnetic member 120 is further mounted on the first base 100, and the first magnetic member 120 is located on a side (i.e., a lower side in fig. 2) of the first coil 210 facing away from the first magnet 110. That is, after the first coil 210 is energized, the first base 100 is fixed, the second base 200 and the first coil 210 mounted thereon move, and the first magnetic element 120 and the first magnet 110 are mounted on the first base 100, so that the first magnetic element 120 and the first magnet 110 can be always fixed relatively. Referring to fig. 4 and 5, fig. 5 is a magnetic field line distribution diagram when the first magnetic member 120 is disposed as in fig. 4, and it can be seen from fig. 5 that the first magnetic member 120 can perform a good magnetic flux function.

Through the technical scheme, in the drive process of optics anti-shake motor, the relative position of first magnetite 110 and first magnetism piece 120 is relatively fixed all the time, make both can improve magnetic density through setting up of first magnetism piece 120, thereby increase drive power is with increase motion stroke, and magnetic attraction between first magnetism piece 120 and first magnetite 110 also can not exert an influence to the motion of second base member 200, the magnetic attraction that can have avoided producing is to the impedance of drive power, the motor has been guaranteed to have great drive power and drive stroke.

Referring to fig. 1 and 4, the first base 100 may include a body 101 disposed at one side of the second base 200 in the z-axis direction, and a mounting wall 102 extending from the body 101 to the other side of the second base 200, the first magnet 110 being mounted to the body 101, and the first magnetic member 120 being mounted to the mounting wall 102. That is, in the embodiment of the present disclosure, the first magnet 110 and the first magnetic member 120 are respectively disposed on the upper and lower sides of the second base 200, and the mounting wall 102 is disposed, so that the first magnetic member 120 is suspended and mounted below the second base 200 without interfering with the second base 200 and other components mounted on the second base 200. The first magnet 110 and the first magnetic member 120 may be respectively connected to the first base 100 by adhesion.

Referring to fig. 6 and 12, the N pole and the S pole of the first magnet 110 are disposed to be distributed along the driving direction of the first coil 210, i.e., the left-right direction of the drawing, and the second magnetic member 130 is disposed on at least one side of the first magnet 110 along the driving direction of the first coil 210, and the second magnetic member 130 may be disposed only on one side as shown in fig. 6, or may be disposed on both sides as shown in fig. 12. Referring to fig. 7 and 13, when the second magnetic member 130 is provided, a beam magnetic action can be better performed, thereby increasing the driving force of the motor more. Here, the second magnetic members 130 at both sides may be attached to the first magnet 110; when the focusing motor is provided and the first magnet 110 is shared, referring to fig. 3, a fifth magnetic member 320 may be disposed on a side of the second coil 310 facing away from the first magnet 110, where the fifth magnetic member 320 is the second magnetic member 130 close to the third base 300, and the third magnetic member 130 (or the fifth magnetic member 320) may function to increase the driving force of the anti-shake motor and the driving force of the focusing motor.

In another embodiment, referring to fig. 8, 10, 17, and 18, the N pole and the S pole of the first magnet 110 may be arranged to be distributed along the z-axis direction, i.e., along the top-bottom direction of the drawing, and the first magnet 110 may be provided with two magnets, one magnet having the N pole below the top magnet pole and the other magnet having the S pole below the top magnet pole, in such a manner as to increase the density of magnetic lines of force, referring to fig. 9. Referring to fig. 10 and 11, the third magnetic member 140 may be disposed on a side of the first magnet 110 facing away from the first coil 210, and the third magnetic member 140 may effectively restrain magnetic lines of force, increase the density of the magnetic lines of force, and increase the driving force.

In the embodiment of the present disclosure, the first magnetic member 120 may include a magnetic conductive sheet 121 or a second magnet 122. Specifically, as shown in fig. 4, 6, 8, 10 and 12, the first magnetic member 120 may be a magnetic conductive sheet 121 made of a magnetic conductive material, such as a metal sheet, and as shown in fig. 14, 15 and 17, the first magnetic member 120 may be a second magnet 122 made of the same material as the first magnet 110, and the arrangement of the magnetic poles of the second magnet 122 may be the same as the arrangement of the first magnet 110, or may be a combination of any of the two magnetic pole arrangements.

In another embodiment, referring to fig. 16 and 18, the first magnetic member 120 may include both the magnetic conductive sheet 121 and the second magnet 122, in which case, the magnetic conductive sheet 121 may be disposed on a side of the second magnet 122 facing away from the first coil 210, i.e., a lower side of the drawing, so as to prevent the magnetic path from being shielded by the magnetic conductive sheet 121 on the upper side of the second magnet 122 and causing the second magnet 122 to be ineffective.

According to an embodiment of the present disclosure, the first coil 210 is configured to generate a driving force capable of driving the first substrate 100 and the second substrate 200 to linearly translate along the x-axis or the y-axis for compensating the jitter. Alternatively, the first coil 210 may be configured to generate a driving force capable of driving the second substrate 200 to rotate in the plane of the x-axis and the y-axis, where the driving force may provide a rotation torque, on one hand, the rotation torque may drive the second substrate 200 to rotate to compensate for the shake, and on the other hand, the rotation torque may resist the second substrate 200 from generating an unnecessary rotation during the translation when the motor is shake-proof by way of linear movement. Alternatively, the first coil 210 may be configured to generate a driving force to drive the second substrate 200 to move along the x-axis or the y-axis, and to drive the second substrate 200 to rotate in the plane of the x-axis and the y-axis. Like this, this motor can be through diversified compensation shake for the module of making a video recording that uses this motor has the imaging effect of high definition.

Specifically, referring to fig. 19 to 24, the first coil 210 may include at least one first sub-coil 211 capable of generating a driving force in an x-axis direction and at least one second sub-coil 212 capable of generating a driving force in a y-axis direction, and an anti-shake effect of the motor in the x-axis and the y-axis may be achieved by providing the first and second sub-coils 211 and 212.

The first sub-coil 211 is configured to generate a driving force capable of driving the first substrate 100 and the second substrate 200 to generate a relative linear movement in the x-axis direction or a relative rotation in a plane of the x-axis and the y-axis, or to generate both a translation and a rotation in the x-axis direction. In addition, the second sub-coil 212 may be configured such that, or only the second sub-coil 212 is configured such that: the generated driving force can drive the first substrate 100 and the second substrate 200 to generate relative linear movement in the y-axis direction or relative rotation in the plane of the x-axis and the y-axis or can be both translated along the y-axis direction and rotated. In the embodiment of fig. 19, the number of the first sub-coil 211 and the number of the second sub-coil 212 are respectively one, the first sub-coil 211 can only drive the second substrate 200 to translate along the x-axis, and the second sub-coil 212 can only drive the second substrate 200 to translate along the y-axis; in the embodiment of fig. 20, the number of the first and second sub-coils 211 and 212 is two, respectively, and the driving manner is the same as that of the embodiment of fig. 19; in the embodiment of fig. 21, the number of the first sub-coils 211 is two, the first sub-coils 211 are symmetrically arranged on the same side with respect to the x-axis, when the driving forces of the two first sub-coils 211 are the same in magnitude and the same in direction, the second base 200 can translate along the x-axis, when the driving forces of the two first sub-coils 211 are the same in magnitude and the same in direction, the second base 200 can rotate in the plane where the x-axis and the y-axis are located, and when the driving forces of the two first sub-coils 211 are different in magnitude, the second base 200 can both translate and rotate regardless of whether the driving directions are the same; in the embodiment of fig. 22, unlike the embodiment of fig. 21, two second sub-coils 212 are provided to control the rotation shaft to be maintained at the center when the second base 200 is rotated; in the embodiment of fig. 23, unlike the embodiment of fig. 22, four first sub-coils 211 are provided, the driving principle of which is the same as that described above and will not be described here; in the embodiment of fig. 24, unlike the embodiment of fig. 22, in which two first sub-coils 211 are provided on opposite sides and are symmetrically arranged with a shift with respect to the x-axis, the driving principle of the embodiment is also the same as that of the previous embodiment, and will not be repeated here. In the embodiments of the present disclosure, the magnitude and direction of the driving force generated by the corresponding coil may be controlled by controlling the current and direction through the coil.

According to an embodiment of the present disclosure, the motor may further include a first sensor for detecting a relative position of the first base 100 and the second base 200 in the x-axis direction, a second sensor for detecting a relative position in the y-axis direction, and a third sensor for detecting a relative rotational position in a plane in which the x-axis and the y-axis are located. In one embodiment, the drive mechanism may further include a power line and sensing devices distributed corresponding to the positions of the sensors to achieve closed-loop control by the sensors. Here, the energizing circuit may be a circuit board structure, or may be another circuit structure capable of supplying power to the coil, and the induction device may be, for example, a magnetic device, or more specifically, a hall magnet, or may be the first magnet 110 or the second magnet 122 described above. The energizing circuit, the sensor and the sensing device may constitute a closed-loop control system for controlling the movement of the second base 200 with respect to the first base 100 and for controlling the movement of the third base 300 with respect to the first base 100, the sensor may be capable of determining a position signal of the moving component by detecting a position signal of the sensing device and feeding back the signal to the energizing circuit, and the energizing circuit may energize the coil to control the corresponding component to operate. Thus, when the second base 200 moves in multiple directions relative to the first base 11, a plurality of sets of the above-described sensors and sensing devices may be provided to detect the relative positions of the first base 100 and the second base 200 in each direction, and similarly, a plurality of sets of the sensors and sensing devices may be provided to detect the relative positions of the first base 100 and the third base 300 in different directions. The specific setting can be adjusted according to the actual application, and is not limited herein.

In the embodiment of the disclosure, referring to fig. 1 and 2, the second base 200 is provided with a fourth magnetic member 220 on a side of the first coil 210 facing away from the first magnet 110, and the fourth magnetic member 220 is arranged such that when a deviation occurs between the first base 100 and the second base 200 relative to the initial position, a magnetic attraction force generated by the fourth magnetic member 220 and the first magnet 110 can cause the first base 100 or the second base 200 to have a tendency of returning to the initial position. Here, the initial position refers to a position where the motor is located when the motor is not energized and gravity or other external force or the like is not considered. On one hand, the magnetic attraction force generated between the fourth magnetic part 220 and the first magnet 110 can make the motor magnetically reset after power failure, thereby saving energy consumption and avoiding shaking, impacting and abnormal sound; on the other hand, the magnetic attraction force can also prevent the first base body 100 and the second base body 200 from rotating relative to each other when the first base body and the second base body are translated in a certain direction, and the movement process is ensured to be more controllable. Here, the fourth magnetic member 220 and the first magnet 110 may be respectively disposed at both sides symmetrical with respect to the x-axis or at both sides symmetrical with respect to the y-axis, so that magnetic attractive forces generated by the fourth magnetic member 220 and the first magnet 110 at the opposite side of the motor can be counterbalanced to make the motor in a balanced state.

In the embodiment of the present disclosure, there may be a plurality of supporting manners between the first substrate 100 and the second substrate 200, and the supporting manners may satisfy the requirement that the second substrate 200 translates along the x-axis or the y-axis or rotates in the plane of the x-axis and the y-axis with respect to the first substrate 100, and the specific supporting manners may be described with reference to the following description and the accompanying drawings.

In one embodiment, referring to fig. 1 and 2, the motor may further include a first ball 230 disposed in contact between the first and

second substrates

100 and 200, and the first ball groove for receiving the first ball 230 is formed on the first or

second substrate

100 or 200. Through the mode that sets up ball support, the rolling friction of ball can be so that less with the frictional force of base member, avoids second base member 200 to produce wearing and tearing. In the case of the third base 300, the third base 300 and the first base 100 may be supported and guided by the second balls 330 arranged in the z-axis direction.

In another embodiment, referring to fig. 25 and 26, the motor may further include a spring plate 240 coupled between the first base 100 and the second base 200, the spring plate 240 including a first elastic plate 241 for coupling with the first base 100, a second elastic plate 242 for coupling with the second base 200, and a spring wire 243 coupled between the first elastic plate 241 and the second elastic plate 242. As shown in fig. 25, a first elastic piece 241 may be connected to the bosses 103 at four corners of the first base 100, a second elastic piece 242 may be a clip-shaped piece connected to the bottom of the second base 200, and a spring 243 is disposed between the first elastic piece 241 and the second elastic piece 242 for providing deformation for the movement of the second base 200 and having a tendency of elastic return, and at the same time, preventing the first base 100 and the second base 200 from rotating relative to each other when they are translated in a certain direction. Referring to fig. 26, the first elastic pieces 241 of the spring 240 may be two pieces disposed on a set of opposite sides, and the second elastic pieces 242 may be two pieces disposed on an adjacent set of opposite sides, and the two elastic pieces are connected by a surrounding spring wire 243, which is the same as the principle of the spring 240 described above and will not be described here.

In another embodiment, referring to fig. 27 and 28, the motor may further include a first slide shaft 150 disposed on the first base 100 and a second slide shaft 250 disposed on the second base 200 and contacting the first slide shaft 150, and the first slide shaft 150 and the second slide shaft 250 are disposed to intersect and be perpendicular to the z-axis direction, respectively. When the second substrate 200 moves relative to the first substrate 100, the two sliding shafts can slide relatively, either in a certain direction or rotate. Through the mode that the slide shaft supported, compare in reed 240, can make the support more stable through the rigid support, compare in the ball support, can avoid the ball to press and make the base produce the pit and influence the motor performance on the base member.

In still another embodiment, referring to fig. 29 and 30, the motor may further include a flexible circuit board 260 disposed on the second base 200, an elastic arm 261 being formed at an edge of the flexible circuit board, the elastic arm 261 being connected to the first base 100. Wherein the resilient arm 261 may comprise a strip as in fig. 29 and is connected to the first substrate 100 by a connecting piece 262. Alternatively, as shown in fig. 30, two tabs 262 may be included to connect to the first substrate 100.

In other embodiments, referring to fig. 31, the motor may further include a suspension wire 270 connected between the first base 100 and the second base 200, the suspension wire 270 may swing accordingly when the second base 200 moves, and the suspension wire 270 may be supported between the first base 100 and the second base 200, and the suspension wire 270 may also prevent the first base 100 and the second base 200 from rotating relative to each other when the first base 100 and the second base 200 are translated in a certain direction.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. An optical anti-shake motor, comprising a first base (100), a second base (200) capable of moving relative to the first base (100), and a housing (400) covering the outer periphery of the first base (100) and the second base (200), wherein a first magnet (110) is mounted on the first base (100), a first coil (210) is mounted on the second base (200) at a position corresponding to the first magnet (110), the first coil (210) is configured to be capable of generating a driving force along an x-axis and/or a y-axis perpendicular to the x-axis, so that the first base (100) and the second base (200) move relative to each other,

wherein the first base body (100) is further provided with a first magnetic part (120), the first magnetic part (120) is positioned on one side of the first coil (210) facing away from the first magnet (110),

the second base body (200) is provided with a fourth magnetic part (220) on the side of the first coil (210) opposite to the first magnet (110), and the fourth magnetic part (220) is arranged in such a way that when a deviation relative to an initial position is generated between the first base body (100) and the second base body (200), the magnetic attraction force generated by the fourth magnetic part (220) and the first magnet (110) can enable the first base body (100) or the second base body (200) to generate a tendency of resetting to the initial position.

2. The optical anti-shake motor according to claim 1, wherein the first magnetic member (120) includes a magnetic conductive sheet (121) or a second magnet (122).

3. The optical anti-shake motor according to claim 1, wherein the first magnetic member (120) includes a magnetic conductive sheet (121) and a second magnet (122), the magnetic conductive sheet (121) being disposed on a side of the second magnet (122) facing away from the first coil (210).

4. The optical anti-shake motor according to claim 1, wherein the first base (100) includes a body (101) provided on one side of the second base (200) in a z-axis direction orthogonal to the x-axis and the y-axis, and a mounting wall (102) extending from the body (101) to the other side of the second base (200), the first magnet (110) is mounted to the body (101), and the first magnetic member (120) is mounted to the mounting wall (102).

5. The optical anti-shake motor according to claim 1, wherein an N pole and an S pole of the first magnet (110) are arranged to be distributed along a driving direction of the first coil (210), and a second magnetic member (130) is provided on at least one side of the first magnet (110) along the driving direction of the first coil (210).

6. The optical anti-shake motor according to claim 1, wherein the N-pole and S-pole of the first magnet (110) are arranged to be distributed along a z-axis direction orthogonal to the x-axis and the y-axis, and a third magnetic member (140) is provided on a side of the first magnet (110) facing away from the first coil (210).

7. The optical anti-shake motor according to claim 1, wherein the first coil (210) is configured to generate a driving force capable of driving the first substrate (100) and the second substrate (200) to generate a relative linear movement in the direction of the x-axis and/or the y-axis and/or a relative rotation in the plane of the x-axis and the y-axis.

8. The optical anti-shake motor according to claim 7, wherein the first coil (210) includes at least one first sub-coil (211) capable of generating a driving force along the x-axis, and at least one second sub-coil (212) capable of generating a driving force along the y-axis,

the first sub-coil (211) is configured to generate a driving force capable of driving the first substrate (100) and the second substrate (200) to generate a relative linear movement in the x-axis direction and/or a relative rotation in a plane of the x-axis and the y-axis, and/or

The second sub-coil (212) is configured to generate a driving force capable of driving to generate a relative linear movement between the first base body (100) and the second base body (200) in the y-axis direction and/or a relative rotation in a plane of the x-axis and the y-axis.

9. The optical anti-shake motor according to claim 8, further comprising a first sensor for detecting a relative position of the first substrate (100) and the second substrate (200) in the x-axis direction, a second sensor for detecting a relative position in the y-axis direction, and a third sensor for detecting a relative rotational position in a plane in which the x-axis and the y-axis lie.

10. The optical anti-shake motor according to claim 1 or 7, further comprising a first ball (230) disposed in contact between the first substrate (100) and the second substrate (200), wherein the first ball groove for receiving the first ball (230) is formed on the first substrate (100) or the second substrate (200).

11. The optical anti-shake motor according to claim 1 or 7, further comprising a spring plate (240) connected between the first base (100) and the second base (200), the spring plate (240) comprising a first elastic plate (241) for connecting with the first base (100), a second elastic plate (242) for connecting with the second base (200), and a spring wire (243) connected between the first elastic plate (241) and the second elastic plate (242).

12. The optical anti-shake motor according to claim 1 or 7, further comprising a first slide shaft (150) provided to the first base (100) and a second slide shaft (250) provided to the second base (200) and disposed in contact with the first slide shaft (150), the first slide shaft (150) being disposed to intersect the second slide shaft (250) and perpendicular to a z-axis orthogonal to the x-axis and the y-axis, respectively.

13. The optical anti-shake motor according to claim 1 or 7, further comprising a flexible circuit board (260) provided to the second base (200), an elastic arm (261) being formed at an edge of the flexible circuit board, the elastic arm (261) being connected to the first base (100).

14. The optical anti-shake motor according to claim 1 or 7, further comprising a suspension wire (270) connected between the first substrate (100) and the second substrate (200).