Anti-shake driving device

Abstract

The invention provides an anti-shake driving device. The anti-shake driving device comprises an anti-shake fixed part, an anti-shake movable part movably supported on the anti-shake fixed part, a coil group, a magnetic steel group and a driver, the optical assembly is fixed on the anti-shake movable part; one of the coil group and the magnetic steel group is fixed on the anti-shake fixed part, the other one of the coil group and the magnetic steel group is fixed on the anti-shake movable part, the magnetic steel group and the coil group are opposite at an interval, the coil group and the magnetic steel group interact to generate electromagnetic force to drive the anti-shake movable part to move, and the driver is installed on the anti-shake fixed part. The driver is used for controlling the driving direction of the coil assembly; the coil assembly comprises a first coil assembly, a second coil assembly and a third coil assembly; the magnetic steel group comprises a first magnetic steel group, a second magnetic steel group and a third magnetic steel group; the driver comprises a first driver, a second driver and a third driver. Compared with the prior art, the anti-shake driving device can realize anti-shake and anti-shake correction.

Description

Technical Field

[0001] The present invention relates to the field of driving technology, and in particular to an anti-shake driving device. Background Art

[0002] As consumers' shooting experience improves, the anti-shake function of the lens driving device is widely used in various camera devices. The combination of the lens driving device and various portable electronic devices such as mobile phones, cameras, computers, etc. is even more popular among consumers.

[0003] The anti-shake device of the lens driving device of the related technology is usually composed of a coil and a magnet to form a driving structure. The support frame is supported on the base, the lens barrel bracket is set in the center hole of the base, and the driving coil and the driving magnet are respectively fixed to the lens barrel bracket and the support frame; the OIS coil (anti-shake coil) is fixed to the housing and located above the support frame, and the anti-shake magnet is fixed to the side of the support frame away from the base. When current is applied to the anti-shake coil, the anti-shake coil and the anti-shake magnet generate an electromagnetic field. The anti-shake coil is affected by the Lorentz force of the electromagnetic field, driving the anti-shake magnet to move in a direction perpendicular to the optical axis, thereby driving the lens barrel to achieve the anti-shake function.

[0004] However, in the anti-shake device of the related technology, since a single anti-shake coil and driving magnet on the market are used to generate a magnetic field to drive each other to achieve anti-shake, the anti-shake function is single, resulting in poor anti-shake effect. At the same time, when the assembly position of the anti-shake coil and the driving magnet deviates from the predetermined position, the anti-shake direction will deviate from the original preset path.

[0005] Therefore, it is necessary to provide a new anti-shake driving device to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide an anti-shake driving device capable of realizing anti-shake and anti-shake correction.

[0007] In order to achieve the above-mentioned purpose, the present invention provides an anti-shake driving device for driving an optical component to perform anti-shake movement, wherein the optical component has an optical axis, an anti-shake fixed part of the anti-shake driving device, an anti-shake movable part movably supported on the anti-shake fixed part, a coil group, a magnetic steel group and a driver; the optical component is fixed to the anti-shake movable part; one of the coil group and the magnetic steel group is fixed to the anti-shake fixed part, and the other of the coil group and the magnetic steel group is fixed to the anti-shake movable part, the magnetic steel group and the coil group are spaced and opposite to each other, the coil group and the magnetic steel group interact with each other to generate electromagnetic force to drive the anti-shake movable part to move, and the driver is installed on the anti-shake fixed part, and the driver is used to control the driving direction of the coil group;

[0008] The coil group includes a first coil group, a second coil group and a third coil group arranged in the same plane; the first coil group includes at least two coils arranged relatively spaced apart along a first direction, and the second coil group and the third coil group respectively include at least two coils arranged relatively spaced apart along a second direction; the second coil group and the third coil group are arranged relatively spaced apart along the first direction; the first direction and the second direction are perpendicular to each other and are perpendicular to the optical axis;

[0009] The magnetic steel group comprises a first magnetic steel group opposite to and spaced from the first coil group, a second magnetic steel group opposite to and spaced from the second coil group, and a third magnetic steel group opposite to and spaced from the third coil group;

[0010] The driver includes a first driver corresponding to the coils of the first coil group, a second driver corresponding to the coils of the second coil group, and a third driver corresponding to the coils of the third coil group; the first driver is used to generate a first driving signal to drive the first coil group to interact with the first magnetic steel group to generate a first driving force along the first direction, thereby driving the anti-shake movable part to move along the first direction; the second driver is used to generate a second driving signal to drive the second coil group to interact with the second magnetic steel group to generate a second driving force, and the third driver is used to generate a third driving signal to drive the third coil group to interact with the third magnetic steel group to generate a third driving force, and the directions of the second driving force and the third driving force are at an angle to the direction of the first driving force; the second driving force and the third driving force act together to drive the anti-shake movable part to move along the second direction; or the second driving force and the third driving force act together to drive the anti-shake movable part to rotate around the optical axis and move along the second direction to achieve anti-shake along the second direction.

[0011] Preferably, when the second driving force is in the same direction as the third driving force or the second driving force is in opposite directions and of unequal magnitude, and the directions of the second driving force and the third driving force are both perpendicular to the direction of the first driving force, the second driving force and the third driving force work together to drive the anti-shake movable part to move in the second direction.

[0012] Preferably, when the second driving force is in the same direction as the third driving force or the second driving force is in opposite directions and unequal in magnitude, and the directions of the second driving force and the third driving force form an acute angle with the direction of the first driving force, the second driving force and the third driving force work together to drive the anti-shake movable part to rotate around the optical axis, correct the direction of the anti-shake movement of the anti-shake drive device, and make the anti-shake movable part move along the second direction.

[0013] Preferably, the driving forces between different coils in the same coil group in the first coil group, the second coil group and the third coil group are the same or different in magnitude, and the driving forces are the same or different in direction.

[0014] Preferably, the magnetic pole distribution of the magnetic steel in the second magnetic steel group corresponding to the second driver is opposite to the magnetic pole distribution of the magnetic steel in the third magnetic steel group corresponding to the third driver.

[0015] Preferably, the second coil group includes a first drive coil and a second drive coil respectively arranged on opposite sides of the anti-shake fixing part along the second direction; the third coil group includes a third drive coil and a fourth drive coil respectively arranged on opposite sides of the anti-shake fixing part along the second direction; the first drive coil and the third drive coil are located on the same side; the second magnetic steel group includes a first magnetic steel and a second magnetic steel respectively arranged corresponding to the first drive coil and the second drive coil; the third magnetic steel group includes a third magnetic steel and a fourth magnetic steel respectively arranged corresponding to the third drive coil and the fourth drive coil;

[0016] The second driver is disposed in the first drive coil or the second drive coil, and the third driver is disposed in the third drive coil or the fourth drive coil.

[0017] Preferably, when the second driver and the third driver are located diagonally, the magnetic poles of the first magnetic steel are opposite to the magnetic poles of the second magnetic steel, the magnetic poles of the third magnetic steel are opposite to the magnetic poles of the fourth magnetic steel, and the magnetic poles of the first magnetic steel are the same as the magnetic poles of the third magnetic steel.

[0018] Preferably, when the second driver and the third driver are located on the same side, the magnetic poles of the first magnetic steel are the same as the magnetic poles of the second magnetic steel, the magnetic poles of the third magnetic steel are the same as the magnetic poles of the fourth magnetic steel, and the magnetic poles of the first magnetic steel are opposite to the magnetic poles of the third magnetic steel.

[0019] Preferably, the anti-shake fixed part includes a base and a shell fixed to the base and forming a receiving space with the base, the anti-shake movable part includes a supporting frame with a receiving space, the anti-shake driving device also includes a supporting member that movably suspends the supporting frame in the receiving space, the optical component is fixed to the supporting frame, and the coil group and the magnetic steel group interact to drive the supporting frame to move.

[0020] Compared with the prior art, in the anti-shake driving device of the present invention, one of the coil group and the magnetic steel group is fixed to the anti-shake fixed part, and the other of the coil group and the magnetic steel group is fixed to the anti-shake movable part, the magnetic steel group and the coil group are spaced and opposite to each other, and the coil group and the magnetic steel group interact to generate electromagnetic force to drive the coil group or the magnetic steel group to move, and the driver is installed on the anti-shake fixed part, and the driver is used to control the driving direction of the coil group; the second coil group and the third coil group are arranged relatively spaced along the first direction; the first direction and the second direction are perpendicular to each other and are both perpendicular to the optical axis; the first driver is used to generate a first driving signal to drive the first coil group and the first The magnetic steel groups interact with each other, thereby generating a driving force along the first direction to drive the anti-shake movable part to move along the first direction to achieve anti-shake along the first direction. The second driver is used to generate a second driving signal to drive the second coil group to interact with the second magnetic steel group to generate a second driving force. The third driver is used to generate a third driving signal to drive the third coil group to interact with the third magnetic steel group to generate a third driving force. The directions of the second driving force and the third driving force are at an angle to the direction of the first driving force. The second driving force and the third driving force act together to drive the anti-shake movable part to move along the second direction to achieve anti-shake along the second direction. Or the second driving force and the third driving force act together to drive the anti-shake movable part to rotate around the optical axis and move along the second direction at the same time, and the movement of the anti-shake movable part that deviates from the original predetermined path is corrected back to the second direction. This new type of rotation anti-shake device can achieve anti-shake and anti-shake correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 A schematic structural diagram of an anti-shake driving device according to Embodiment 1 is provided for an embodiment of the present invention;

[0023] Figure 2 for Figure 1 3D structural decomposition diagram;

[0024] Figure 3 for Figure 1 AA line section view;

[0025] Figure 4 for Figure 2 A partial exploded view of

[0026] Figure 5 A schematic structural diagram of an anti-shake driving device according to a second embodiment of the present invention is provided;

[0027] Figure 6 for Figure 5 3D structural decomposition diagram;

[0028] Figure 7 for Figure 5 BB line cross-sectional view;

[0029] Figure 8 A schematic diagram of the assembly structure of a coil group, a magnetic steel group and a driver of an anti-shake driving device provided in an embodiment of the present invention;

[0030] Fig. 9 A schematic structural diagram of the traction force of the anti-shake driving device provided by an embodiment of the present invention in the same direction;

[0031] Fig.10 A schematic structural diagram of the traction force in different directions of the anti-shake driving device provided by an embodiment of the present invention;

[0032] Fig.11 A schematic structural diagram of the second driver and the third driver on the same side of the anti-shake driving device provided by an embodiment of the present invention.

[0033] In the figure, 100, anti-shake driving device, 1, anti-shake fixed part, 11, base, 12, support frame, 121, frame body, 122, avoidance position, 13, bracket, 14, elastic component, 15, shell, 16, support member, 2, filter, 3, anti-shake movable part, 4, coil group, 41, first coil group, 411, fifth drive coil, 412, sixth drive coil, 42, second coil group, 421, first drive coil, 422, second drive coil Coil, 43, third coil group, 431, third drive coil, 432, fourth drive coil, 5, magnetic steel group, 51, first magnetic steel group, 511, fifth magnetic steel, 512, sixth magnetic steel, 52, second magnetic steel group, 521, first magnetic steel, 522, second magnetic steel, 53, third magnetic steel group, 531, third magnetic steel, 532, fourth magnetic steel, 6, driver, 61, first driver, 62, second driver, 63, third driver, 7, image sensor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figure 1-Figure 3 and Figure 8-Figure 11As shown, an embodiment of the present invention provides an anti-shake driving device 100 for driving an optical component to perform anti-shake movement, wherein the optical component has an optical axis (Z axis), and the anti-shake driving device 100 includes an anti-shake fixed part 1, an anti-shake movable part 3 movably supported on the anti-shake fixed part 1, a coil group 4, a magnetic steel group 5 and a driver 6; the optical component is fixed to the anti-shake movable part 3.

[0037] In this embodiment, the anti-shake fixed part 1 includes a base 11 and a shell 15 fixed to the base 11 and forming a storage space with the base 11, the anti-shake movable part includes a support frame 12 with a storage space, the anti-shake driving device 100 also includes a support member 16 that movably suspends the support frame 12 in the storage space, the optical component is fixed to the support frame 12, and the coil group 4 and the magnetic steel group 5 interact to drive the support frame 12 to move. Optionally, the support member 16 is a plurality of balls arranged on the base 11. In this embodiment, the support frame 12 includes a rectangular frame body 121 and an avoidance position 122 formed by a recessed side wall of the frame body 121, the magnetic steel group 5 is installed in the avoidance position and is spaced relatively from the coil group 4 installed on the base 11 along the optical axis, and the frame body 121 is movably supported on the base 11. The anti-shake driving device 100 further includes a bracket 13 disposed in the support frame 12, a lens may be disposed in the bracket 13, and the bracket 13 is elastically suspended in the support frame 12 through an elastic component 14. Optionally, the coil group 4 may also be fixed to the support frame 12, the magnetic steel group 5 may be fixed to the base 11, the magnetic steel group 5 and the coil group 4 are spaced and opposite to each other along the optical axis direction, the coil group 4 and the magnetic steel group 5 interact to generate electromagnetic force to drive the support frame 12 to move, and drive the bracket 12 to move together, the driver 6 is installed on the anti-shake fixing part 1, and the driver 6 is used to control the driving direction of the coil group 4.

[0038] The coil group 4 includes a first coil group 41, a second coil group 42 and a third coil group 43 arranged in the same plane; the first coil group 41 includes at least two coils arranged relatively spaced along a first direction, and the second coil group 42 and the third coil group 43 respectively include at least two coils arranged relatively spaced along a second direction; the second coil group 42 and the third coil group 43 are arranged relatively spaced along the first direction; the first direction and the second direction are perpendicular to each other and are both perpendicular to the optical axis (Z axis). The first direction is defined as the horizontal X-axis direction, and the second direction is defined as the horizontal Y-axis direction.

[0039] The magnetic steel group 5 includes a first magnetic steel group 51 opposite to and spaced from the first coil group 41, a second magnetic steel group 52 opposite to and spaced from the second coil group 42, and a third magnetic steel group 53 opposite to and spaced from the third coil group 43. The first magnetic steel group 51 is disposed on opposite sides of the support frame 12 along the first direction, the second magnetic steel group 52 is disposed opposite to the third magnetic steel group 53, and both the second magnetic steel group 52 and the third magnetic steel group 53 are disposed on the side of the support frame 12 along the second direction. The first magnetic steel group 51 is located on one side of the first coil group 41 and is spaced from each other so that the first coil group 41 is located within the magnetic field range of the first magnetic steel group 51; the second magnetic steel group 52 is located on one side of the second coil group 42 and is spaced from each other so that the second coil group 42 is located within the magnetic field range of the second magnetic steel group 52; the third magnetic steel group 53 is located on one side of the third coil group 43 and is spaced from each other so that the third coil group 43 is located within the magnetic field range of the third magnetic steel group 53.

[0040] The driver 6 includes a first driver 61 corresponding to the coils of the first coil group 41, a second driver 62 corresponding to the coils of the second coil group 42, and a third driver 63 corresponding to the coils of the third coil group 43; the first driver 61 is used to generate a first driving signal to drive the first coil group 41 to interact with the first magnetic steel group 51 to generate a first driving force along the first direction, thereby driving the movement along the first direction; the second driver 62 is used to generate a second driving signal to drive the second coil group 42 to interact with the second magnetic steel group 52 to generate a second driving force, and the third driver 63 is used to generate a third driving signal to drive the third coil group 43 to interact with the third magnetic steel group 53 to generate a third driving force, and the directions of the second driving force and the third driving force are at an angle with the direction of the first driving force. The second driving force and the third driving force act together to drive the anti-shake movable part 3 to move along the second direction, or the second driving force and the third driving force act together to drive the anti-shake movable part 3 to rotate around the optical axis and move along the second direction to achieve anti-shake and anti-shake correction along the second direction.

[0041] The first driver 61 can control the interaction between the first coil group 41 and the first magnetic steel group 51 to realize anti-shake control in the X-axis direction. The second driver 62 can control the interaction between the second coil group 42 and the second magnetic steel group 52 to realize anti-shake control in the Y-axis direction. The third driver 63 can control the interaction between the third coil group 43 and the third magnetic steel group 53 to realize anti-shake control in the Y-axis direction.

[0042] Optionally, the first driver 61 , the second driver 62 and the third driver 63 are driving chips respectively.

[0043] In this embodiment, the first coil group 41 includes a fifth drive coil 411 and a sixth drive coil 412 respectively arranged on opposite sides of the anti-shake fixing part 1 along the first direction, and the first magnetic steel 521 group 51 includes a fifth magnetic steel 511 and a sixth magnetic steel 512 arranged opposite to each other, and the fifth drive coil 411 and the sixth drive coil 412 are respectively opposite to and spaced from the fifth magnetic steel 511 and the sixth magnetic steel 512. When the first driver 61 is working, the fifth drive coil 411 and the sixth drive coil 412 respectively generate a fifth traction force F5 and a sixth traction force F6 along the first direction. The resultant force of the fifth traction force F5 and the sixth traction force F6 is the first driving force, and the magnitude and direction of the fifth traction force F5 and the sixth traction force F6 can be different. The first driving force drives the support frame 12 to drive the bracket 13 to move in the first direction, so as to realize the anti-shake of the anti-shake driving device along the first direction.

[0044] In this embodiment, the second coil group 42 includes a first drive coil 421 and a second drive coil 422 respectively arranged on opposite sides of the base 11 along the second direction; the third coil group 43 includes a third drive coil 431 and a fourth drive coil 432 respectively arranged on opposite sides of the anti-shake fixing part 1 along the second direction; the first drive coil 421 and the third drive coil 431 are located on the same side; the second magnetic steel group 52 includes a first magnetic steel 521 and a second magnetic steel 522 respectively arranged corresponding to the first drive coil 421 and the second drive coil 422; the third magnetic steel 531 group 53 includes a third magnetic steel 531 and a fourth magnetic steel 532 respectively arranged corresponding to the third drive coil 431 and the fourth drive coil 432.

[0045] In this embodiment, the first drive coil 421, the second drive coil 422, the third drive coil 431 and the fourth drive coil 432 are energized to generate a first traction force F1, a second traction force F2, a third traction force F3 and a fourth traction force F4 along the second direction respectively. The resultant force of the first traction force F1 and the second traction force F2 is the second driving force, and the resultant force of the third traction force F3 and the fourth traction force F4 is the third driving force. The directions and magnitudes of the first traction force F1 and the second traction force F2 may be the same or different, and the directions and magnitudes of the third traction force F3 and the fourth traction force F4 may be the same or different.

[0046] In this embodiment, when the second driving force and the third driving force are in the same direction or in opposite directions and unequal in magnitude, and the directions of the second driving force and the third driving force are both perpendicular to the direction of the first driving force, the second driving force and the third driving force work together to drive the anti-shake movable part to move along the second direction, so that the anti-shake drive device achieves anti-shake along the Y-axis.

[0047] In this embodiment, when the second driving force and the third driving force are in the same direction or in opposite directions and unequal in magnitude, and the directions of the second driving force and the third driving force form an acute angle with the direction of the first driving force, the second driving force and the third driving force work together to drive the anti-shake movable part to rotate around the optical axis to correct the direction of the anti-shake movement of the anti-shake drive device, and make the anti-shake movable part finally move along the second direction to achieve Y-axis anti-shake.

[0048] In this embodiment, the magnetic pole distribution of the magnetic steel in the second magnetic steel group 52 corresponding to the second driver 62 is opposite to the magnetic pole distribution of the magnetic steel in the third magnetic steel group 53 corresponding to the third driver 63 .

[0049] Specifically, in this embodiment, when the second driver 62 and the third driver 63 are located at the diagonal of the support frame 12, that is, the second driver 62 is arranged opposite to the first magnetic steel 521, and the third driver 63 is arranged opposite to the fourth magnetic steel 532, or the second driver 62 is arranged opposite to the second magnetic steel 522, and the third driver 63 is arranged opposite to the third magnetic steel 531. The magnetic pole of the first magnetic steel 521 is opposite to the magnetic pole of the second magnetic steel 522, the magnetic pole of the third magnetic steel 531 is opposite to the magnetic pole of the fourth magnetic steel 532, and the magnetic pole of the first magnetic steel 521 is the same as the magnetic pole of the third magnetic steel 531. When the second driver 62 and the third driver 63 are located on the same side of the support frame 12, that is, the magnetic pole of the first magnetic steel 521 is the same as the magnetic pole of the second magnetic steel 522, the magnetic pole of the third magnetic steel 531 is the same as the magnetic pole of the fourth magnetic steel 532, and the magnetic pole of the first magnetic steel 521 is opposite to the magnetic pole of the third magnetic steel 531.

[0050] In this embodiment, the magnetic poles of the fifth magnetic steel 511 and the sixth magnetic steel 512 are opposite.

[0051] Embodiment 2

[0052] The structure of the second embodiment is basically the same as that of the first embodiment, and the technical effects produced are the same, except that the anti-shake driving device 100 of the second embodiment drives the image sensor to move to achieve anti-shake. Figure 5-Figure 11As shown, the present invention also provides an anti-shake driving device 100 for driving an optical component to perform anti-shake movement, wherein the optical component has an optical axis (Z axis), and the anti-shake driving device 100 includes an anti-shake fixed part 1, an anti-shake movable part 3 movably supported on the anti-shake fixed part, a coil group 4, a magnetic steel group 5 and a driver 6; the optical component is fixed to the anti-shake movable part 3; one of the coil group 4 and the magnetic steel group 5 is fixed to the anti-shake fixed part 1, and the other of the coil group 4 and the magnetic steel group 5 is fixed to the anti-shake movable part 3.

[0053] In this embodiment, the anti-shake fixed part 1 includes a base 11 and a shell 15 fixed to the base 11 and forming a receiving space with the base 11, and the anti-shake movable part 3 includes a support frame 12 with a receiving space, and the image sensor 7 is fixed to the support frame 12. The anti-shake driving device 100 also includes a support member 16 that movably suspends the support frame 12 in the receiving space. In this embodiment, the coil group 4 is fixed to the support frame 12, and the magnetic steel group 5 is fixed to the shell 15. Optionally, the coil group 4 can also be fixed to the shell 15, and the magnetic steel group 5 is fixed to the support frame 12. The coil group 4 and the magnetic steel group 5 interact with each other to drive the support frame 12 to move and drive the image sensor 7 to move to achieve anti-shake. The magnetic steel group 5 and the coil group 4 are spaced opposite to each other along the optical axis. In this embodiment, the driver 6 is installed on the support frame 12 and is located in the coil group 4. The driver 6 is used to control the driving direction of the coil group 4. The anti-shake driving device 100 further includes a bracket 13 disposed on the supporting member 16 . The bracket 13 is disposed around the image sensor 7 , and a filter 2 is further disposed on the bracket corresponding to the image sensor 7 .

[0054] Compared with the prior art, in the anti-shake driving device of the present invention, one of the coil group and the magnetic steel group is fixed to the anti-shake fixed part, the other of the coil group and the magnetic steel group is fixed to the anti-shake movable part, the magnetic steel group and the coil group are spaced and opposite to each other, the coil group and the magnetic steel group interact with each other to generate electromagnetic force to drive the coil group or the magnetic steel group to move, the driver is installed on the shell, and the driver is used to control the driving direction of the coil group; the second coil group and the third coil group are arranged relatively spaced along the first direction; the first direction and the second direction are perpendicular to each other and are both perpendicular to the optical axis; the first driver is used to generate a first driving signal to drive the first coil group to interact with the first magnetic steel group, thereby generating a driving force along the first direction, the second driver is used to generate a second driving signal to drive the second coil group to interact with the second magnetic steel group, thereby generating a second driving force, and the third driver is used to generate a third driving signal to drive the third coil group to interact with the third magnetic steel group, thereby generating a third driving force; the directions of the second driving force and the third driving force are at an angle with the direction of the first driving force; the second driving force and the third driving force act together to drive the anti-shake movable part to move along the second direction to achieve anti-shake along the second direction. Or the second driving force and the third driving force work together to drive the anti-shake movable part to rotate around the optical axis and move along the second direction at the same time, and correct the movement of the anti-shake movable part that deviates from the original predetermined path back to the second direction. This new type of rotation anti-shake device can achieve anti-shake and anti-shake correction.

[0055] The above description is only an implementation mode of the present invention. It should be pointed out that, for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present invention, but these all belong to the protection scope of the present invention.

Claims

1. An anti-shake driving device, used for driving an optical component to perform anti-shake movement, the optical component having an optical axis, the anti-shake driving device comprising an anti-shake fixed part, an anti-shake movable part movably supported on the anti-shake fixed part, a coil group, a magnetic steel group and a driver; the optical component is fixed to the anti-shake movable part; one of the coil group and the magnetic steel group is fixed to the anti-shake fixed part, and the other of the coil group and the magnetic steel group is fixed to the anti-shake movable part, the magnetic steel group and the coil group are spaced opposite to each other, the coil group and the magnetic steel group interact with each other to generate electromagnetic force to drive the anti-shake movable part to move, the driver is installed on the anti-shake fixed part, and the driver is used to control the driving direction of the coil group; it is characterized in that The coil group includes a first coil group, a second coil group and a third coil group arranged in the same plane; the first coil group includes at least two coils arranged relatively spaced apart along a first direction, and the second coil group and the third coil group respectively include at least two coils arranged relatively spaced apart along a second direction; the second coil group and the third coil group are arranged relatively spaced apart along the first direction; the first direction and the second direction are perpendicular to each other and are perpendicular to the optical axis; The magnetic steel group comprises a first magnetic steel group opposite to and spaced from the first coil group, a second magnetic steel group opposite to and spaced from the second coil group, and a third magnetic steel group opposite to and spaced from the third coil group; The driver comprises a first driver arranged corresponding to the coils of the first coil group, a second driver arranged corresponding to the coils of the second coil group, and a third driver arranged corresponding to the coils of the third coil group; The first driver is used to generate a first driving signal to drive the first coil group to interact with the first magnetic steel group to generate a first driving force along the first direction, thereby driving the anti-shake movable part to move along the first direction; The second driver is used to generate a second driving signal to drive the second coil group to interact with the second magnetic steel group to generate a second driving force, and the third driver is used to generate a third driving signal to drive the third coil group to interact with the third magnetic steel group to generate a third driving force. The directions of the second driving force and the third driving force are at an angle to the direction of the first driving force; the second driving force and the third driving force work together to drive the anti-shake movable part to move along the second direction; or the second driving force and the third driving force work together to drive the anti-shake movable part to rotate around the optical axis and move along the second direction to achieve anti-shake along the second direction.

2. The anti-shake driving device according to claim 1, characterized in that: When the second driving force is in the same direction as the third driving force or the second driving force is in opposite directions and of unequal magnitude, and the directions of the second driving force and the third driving force are both perpendicular to the direction of the first driving force, the second driving force and the third driving force work together to drive the anti-shake movable part to move along the second direction.

3. The anti-shake driving device according to claim 1, characterized in that: When the second driving force is in the same direction as the third driving force or the second driving force is in opposite directions to the third driving force and their magnitudes are unequal, and the directions of the second driving force and the third driving force form an acute angle with the direction of the first driving force, the second driving force and the third driving force work together to drive the anti-shake movable part to rotate around the optical axis, correct the direction of the anti-shake movement of the anti-shake drive device, and make the anti-shake movable part move along the second direction.

4. The anti-shake driving device according to claim 1, characterized in that: The driving forces between different coils in the same coil group of the first coil group, the second coil group and the third coil group are the same or different in magnitude, and the driving forces are the same or different in direction.

5. The anti-shake driving device according to claim 1, characterized in that: The magnetic pole distribution of the magnetic steel in the second magnetic steel group corresponding to the second driver is opposite to the magnetic pole distribution of the magnetic steel in the third magnetic steel group corresponding to the third driver.

6. The anti-shake driving device according to claim 5, characterized in that: The second coil group includes a first drive coil and a second drive coil respectively arranged on two opposite sides of the anti-shake fixing part along the second direction; the third coil group includes a third drive coil and a fourth drive coil respectively arranged on two opposite sides of the anti-shake fixing part along the second direction; the first drive coil and the third drive coil are located on the same side; the second magnetic steel group includes a first magnetic steel and a second magnetic steel respectively arranged corresponding to the first drive coil and the second drive coil; the third magnetic steel group includes a third magnetic steel and a fourth magnetic steel respectively arranged corresponding to the third drive coil and the fourth drive coil; The second driver is disposed in the first drive coil or the second drive coil, and the third driver is disposed in the third drive coil or the fourth drive coil.

7. The anti-shake driving device according to claim 6, characterized in that: When the second driver is located at a diagonal position, the magnetic pole of the first magnetic steel is opposite to the magnetic pole of the second magnetic steel, the magnetic pole of the third magnetic steel is opposite to the magnetic pole of the fourth magnetic steel, and the magnetic pole of the first magnetic steel is the same as the magnetic pole of the third magnetic steel.

8. The anti-shake driving device according to claim 6, characterized in that: When the second driver and the third driver are located on the same side, the magnetic poles of the first magnetic steel are the same as the magnetic poles of the second magnetic steel, the magnetic poles of the third magnetic steel are the same as the magnetic poles of the fourth magnetic steel, and the magnetic poles of the first magnetic steel are opposite to the magnetic poles of the third magnetic steel.

9. The anti-shake driving device according to claim 1, characterized in that: The anti-shake fixed part includes a base and a shell fixed to the base and forming a storage space with the base, the anti-shake movable part includes a support frame with a storage space, the anti-shake driving device also includes a support member that movably suspends the support frame in the storage space, the optical component is fixed to the support frame, and the coil group and the magnetic steel group interact with each other to drive the support frame to move.

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