CN220732920U - Crosstalk-free shift shaft anti-shake device - Google Patents

Abstract

The utility model discloses a crosstalk-free moving shaft anti-shake device, which relates to the technical field of motors, and the crosstalk-free moving shaft anti-shake device is characterized in that a first supporting piece and a second supporting piece are arranged, and a single hemispherical single-point support is used instead of the traditional one through line contact or multipoint contact and support, so that a first driving piece drives an imaging assembly to rotate around the first supporting piece and a second driving piece drives the imaging assembly to rotate around the second supporting piece, and therefore independent anti-shake of each shaft can be realized, and the imaging assembly does not interfere with each other, does not have crosstalk and has good anti-shake effect when rotating around an X shaft and a Y shaft.

Description

Crosstalk-free shift shaft anti-shake device

Technical Field

The utility model relates to the technical field of motors, in particular to a crosstalk-free shaft-shifting anti-shake device.

Background

Along with the continuous expansion of digital camera and smart mobile phone market, camera anti-shake's application also increases, and camera anti-shake can effectually reduce image shake, improves image quality to improve user experience, along with people's requirement to image quality is higher and higher, camera anti-shake's demand also can be bigger and bigger.

The prior optical anti-shake device with the authorized bulletin number of CN212569369U changes the driving of the original driving coil and the magnetic steel into the driving of an electromagnet, namely the magnetic steel is changed into a soft magnetic sheet, and the width and thickness dimensions of the optical anti-shake device are reduced while the original performance is met.

However, when the device is used, a certain problem exists, the fulcrum structure of the device is a hemispherical single-point support, and the anti-shake structures are all linked, so that when the camera rotates around the hemispherical support point to one axis, the output thrust of the other axis changes, the positions of the coil and the magnet of the other axis change, the crosstalk is serious, the control and debugging difficulty is high, and the anti-shake effect is poor.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the crosstalk-free shaft-moving anti-shake device which can realize independent anti-shake of each shaft, has no crosstalk during rotation and has good anti-shake effect.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a no crosstalk moves axle anti-shake device, includes the mount pad, be equipped with anti-shake structure on the mount pad, anti-shake structure includes first anti-shake part and second anti-shake part, be equipped with imaging unit on the second anti-shake part, first anti-shake part includes first driving piece and first support piece, first driving piece drive second anti-shake part and imaging unit rotate round first support piece, second anti-shake part includes second driving piece and second support piece, second support piece and first support piece are all parallel with the horizontal plane and the projection on the horizontal plane is perpendicular, second driving piece drive imaging unit rotates round second support piece.

Preferably, the imaging component is a mirror or a module.

Preferably, the first driving piece includes first magnet and first coil, the mount pad bottom is equipped with the FPC board, the FPC board top surface is equipped with the backup pad, FPC board top surface bilateral symmetry is equipped with a plurality of first coils that pass the backup pad, first support piece and backup pad top surface contact just are located between two first coils, first support piece top is connected with the medium plate, the medium plate bottom surface is equipped with first magnet, first magnet is located first coil top, two line between the first magnet and two line between the first coil are all perpendicular with the projection of first support piece on the medium plate top surface.

Preferably, the second driving piece includes second magnet and second coil, medium plate top surface bilateral symmetry is equipped with a plurality of second magnets, second support piece and medium plate top surface contact just are located between two second magnets, second support piece top is equipped with the carrier, the carrier bottom surface is equipped with the second coil, the second coil is located the second magnet top, two the line between the second magnet and two the line between the second coil are all perpendicular with the projection of second support piece on the medium plate top surface, two the line between the first magnet and two the line between the first coil all perpendicular with the projection of the line between the second magnet and the line between the second coil on the medium plate top surface.

Preferably, the first supporting member and the supporting plate and the second supporting member and the middle plate are in line contact or multipoint contact.

Preferably, a plurality of elastic pieces are arranged between the supporting plate and the middle plate and between the middle plate and the carrier.

Preferably, the electric motor further comprises a winding plate, a second groove is formed in the bottom surface of the carrier, the second coil is arranged on the winding plate, and the size of a notch of the second groove is not smaller than that of the winding plate.

Preferably, the top surface and the bottom surface of the middle plate are both provided with a plurality of first grooves, and the notch size of each first groove is not smaller than the sizes of the first magnet and the second magnet.

Preferably, the center positions of the four side walls of the middle plate are correspondingly provided with a first limiting piece and a second limiting piece in pairs, the first limiting piece limits the rotation angle of the carrier, and the second limiting piece limits the rotation angle of the middle plate.

Preferably, the middle plate is made of magnetic conductive material.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the first supporting piece and the second supporting piece are arranged, and the traditional single-point supporting of a single hemispherical body is replaced by line contact or multipoint contact and supporting, so that the first driving piece drives the imaging assembly to rotate around the first supporting piece and the second driving piece drives the imaging assembly to rotate around the second supporting piece, and therefore independent anti-shake of each axis can be realized, and the imaging assembly does not interfere with each other, does not have crosstalk and has good anti-shake effect when rotating around the X axis and the Y axis.

Drawings

FIG. 1 is a schematic diagram of an anti-shake apparatus according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of the explosive structure of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view showing the structures of the first supporting member, the middle plate and the first groove according to the first embodiment of the present utility model;

FIG. 4 is a schematic view showing the structure of the second support, carrier and weight-reducing groove according to the first embodiment of the present utility model;

FIG. 5 is a schematic view of a first groove and a middle plate according to a first embodiment of the present utility model;

FIG. 6 is an exploded view of an anti-shake apparatus according to a second embodiment of the utility model;

FIG. 7 is a schematic view of a second support, carrier and weight-reduction trough structure according to a second embodiment of the present utility model;

FIG. 8 is a schematic view of a square block-shaped first support, a middle plate and a first groove according to a second embodiment of the present utility model;

FIG. 9 is a schematic view showing the structures of the first supporting member, the middle plate and the first groove in the long plate shape according to the second embodiment of the present utility model;

FIG. 10 is a schematic diagram of an imaging module according to a fourth embodiment of the present utility model;

FIG. 11 is a schematic view of the explosive structure of FIG. 10 according to the present utility model;

FIG. 12 is a schematic view illustrating the installation of a first stop member and a second stop member according to a fifth embodiment of the present utility model;

FIG. 13 is a schematic view of the rotational orientation of the imaging assembly of the present utility model;

wherein: 1. a mounting base; 21. a support plate; 22. a first coil; 23. a first magnet; 24. a first support; 31. a second magnet; 32. a carrier; 33. a second coil; 34. a second support; 4. an imaging assembly; 5. a middle plate; 6. an elastic member; 7. a winding plate; 8. an FPC board; 9. a first groove; 10. a weight reduction groove; 11. a housing; 12. a first limiting member; 13. and the second limiting piece.

Detailed Description

In order to make the technical means, creation characteristics, achievement purposes and effects achieved by the present utility model easy to understand, the present utility model will be further described with reference to specific examples, but the following examples are only preferred examples of the present utility model, not all examples are based on the embodiments, and other examples obtained by a person skilled in the art without making creative efforts are all within the scope of the present utility model, and experimental methods in the following examples, if not specifically described, are all conventional methods, and materials, reagents, etc. used in the following examples, if not specifically described, may be obtained from commercial sources.

As shown in fig. 1 to 9, the utility model provides a crosstalk-free shift shaft anti-shake device, which comprises a mounting seat 1, wherein an anti-shake structure is arranged on the mounting seat 1, the anti-shake structure comprises a first anti-shake component and a second anti-shake component, an imaging component 4 is arranged on the second anti-shake component, the imaging component 4 is a reflecting mirror or a module, the first anti-shake component comprises a first driving piece and a first supporting piece 24, the first driving piece drives the second anti-shake component and the imaging component 4 to rotate around the first supporting piece 24, the second anti-shake component comprises a second driving piece and a second supporting piece 34, the second supporting piece 34 and the first supporting piece 24 are parallel to a horizontal plane and are perpendicular to projection on the horizontal plane, and the second driving piece drives the imaging component 4 to rotate around the second supporting piece 34;

by providing the first support 24 and the second support 34, the imaging assembly 4 can be driven to rotate around the first support 24 by the first drive member and the imaging assembly 4 can be driven to rotate around the second support 34 by the second drive member through line contact or multipoint contact and support instead of the traditional single-point support using a single hemisphere, so that independent anti-shake effect of each axis can be realized, and the imaging assembly 4 does not interfere with each other, does not have crosstalk and has good anti-shake effect when rotating around the X axis and the Y axis.

The imaging elements 4 in the following first to third embodiments are all described as mirrors (when the imaging element 4 is a mirror, the periphery is set to be the housing 11, not shown in the drawings), and the imaging element 4 in the fourth and fifth embodiments is described as a module;

first embodiment

The first supporting member 24 is disposed at the bottom of the middle plate 5, the second supporting member 34 is disposed at the bottom of the carrier 32, and at this time, the first supporting member 24 is in line contact with the top surface of the supporting plate 21, and the second supporting member 34 is in line contact with the top surface of the middle plate 5;

as shown in fig. 1-5, the first driving member includes a first magnet 23 and a first coil 22, the bottom of the mounting base 1 is provided with an FPC board 8, the top surface of the FPC board 8 is provided with a supporting board 21, two sides of the top surface of the FPC board 8 are symmetrically provided with a plurality of first coils 22 penetrating through the supporting board 21 (here, a steel plate is optionally used), the first coils 22 are not contacted with the supporting board 21, a first supporting member 24 is contacted with the top surface of the supporting board 21 and is positioned between the two first coils 22, the top of the first supporting member 24 is connected with a middle plate 5, the bottom surface of the middle plate 5 is provided with a first magnet 23, the first magnet 23 is positioned above the first coils 22, and the connection line between the two first magnets 23 and the connection line between the two first coils 22 are perpendicular to the projection of the first supporting member 24 on the top surface of the middle plate 5;

the second driving piece comprises a second magnet 31 and a second coil 33, a plurality of second magnets 31 are symmetrically arranged on two sides of the top surface of the middle plate 5, a second supporting piece 34 is contacted with the top surface of the middle plate 5 and is positioned between the two second magnets 31, a carrier 32 is arranged on the top of the second supporting piece 34, the bottom surface of the carrier 32 is provided with the second coil 33, the second coil 33 is positioned above the second magnets 31, a connecting line between the two second magnets 31 and a connecting line between the two second coils 33 are perpendicular to the projection of the second supporting piece 34 on the top surface of the middle plate 5, and a connecting line between the two first magnets 23 and a connecting line between the two first coils 22 are perpendicular to the projection of the connecting line between the two second coils 33 on the top surface of the middle plate 5;

as shown in fig. 2 and 6, a plurality of elastic members 6 are respectively disposed between the support plate 21 and the middle plate 5 and between the middle plate 5 and the carrier 32, and by providing the elastic members 6, the middle plate 5 and the carrier 32 have a certain limiting effect, so that when the carrier 32 and the imaging assembly 4 rotate, irregular movement under the action of the first driving member and the second driving member is prevented, and when the first coil 22 and the second coil 33 are not electrified, the carrier 32 and the imaging assembly 4 can be reset under the action of the elastic members 6.

As shown in fig. 3 and 4, the first supporting member 24 is in line contact with the supporting plate 21 and the second supporting member 34 is in line contact with the middle plate 5, and here, the first supporting member 24 and the second supporting member 34 are selected as arc supporting rods for explanation, preferably, the first supporting member 24 is disposed at a central position of a bottom surface of the middle plate 5, and the second supporting member 34 is disposed at a central position of a bottom surface of the carrier 32:

as shown in fig. 1, 2 and 13, when the imaging assembly 4 is required to rotate around the Y axis to perform anti-shake motion, by energizing each of the first coils 22, the first coils 22 located on both sides of the first support 24 are energized to generate magnetic force according to ampere's rule (i.e., right-hand rule), the magnetic force generated by one of the first coils 22 attracts the corresponding first magnet 23 above it, and the magnetic force generated by the other first coil 22 repels the corresponding first magnet 23 above it, so that the middle plate 5 (i.e., the second anti-shake member and the imaging assembly 4) can rotate around the Y axis;

when the imaging assembly 4 rotates around the X axis to perform anti-shake motion, by energizing each of the second coils 33, the second coils 33 positioned on both sides of the bottom surface of the carrier 32 are energized to generate magnetic force according to ampere rule (i.e., right-hand rule), the magnetic force generated by one of the second coils 33 attracts the corresponding second magnet 31 below the second coil 33, and the magnetic force generated by the other second coil 33 repels the corresponding second magnet 31 below the second coil, so that the middle plate 5 does not rotate, and the generated attractive force and repulsive force enable the carrier 32 and the imaging assembly 4 to rotate around the X axis;

therefore, each axis of the imaging component 4 can be independently anti-shake, and the imaging component 4 is not mutually interfered, has no crosstalk and has good anti-shake effect when rotating around the X axis and the Y axis.

In addition, the first supporting member 24 and the second supporting member 34 may be configured in an inverted triangle shape, or the first supporting member 24 may be in line contact with the top surface of the supporting plate 21, and the second supporting member 34 may be in line contact with the top surface of the middle plate 5, which will not be described in detail herein.

The whole device is assembled according to the principle: the imaging assembly 4 and the carrier 32 are assembled, the second coil 33 and the winding board 7 are assembled, the winding board 7 is assembled below the carrier 32 to form a semi-finished product of the winding board 7 (a circuit of the second coil 33 on the semi-finished product of the winding board 7 is guided to the elastic piece 6 by two winding posts), the first magnet 23 and the second magnet 31 are assembled on the middle plate 5, the middle plate 5 is assembled with the mounting seat 1 and the carrier 32 respectively through the elastic piece 6 to form a bracket semi-finished product, the FPC board 8, the support plate 21 and the first coil 22 are assembled to form an FPC semi-finished product, and finally the bracket semi-finished product and the FPC semi-finished product are assembled to obtain a finished product.

Second embodiment

Here, the first support 24 is disposed at the bottom of the middle plate 5, and the second support 34 is disposed at the bottom of the carrier 32, which is different from the first embodiment: as shown in fig. 6-9, the first supporting member 24 is in multi-point contact with the top surface of the supporting plate 21 and the second supporting member 34 is in multi-point contact with the top surface of the middle plate 5;

the first support 24 and the second support 34 herein comprise a long plate and balls or a plurality of linearly distributed blocks and balls (when the blocks are a plurality of blocks, the connection line between the blocks of the first support 24 is vertical to the connection line between the blocks of the second support 34), specifically, a plurality of bottom grooves are formed on the long plate, a plurality of balls are arranged in the bottom grooves, or a plurality of bottom grooves are formed at the bottom of each block, and a plurality of balls are arranged in the bottom grooves;

in addition, long plates or square blocks are not required to be arranged, and bottom grooves are formed in the carrier 32 and the middle plate 5, so that detailed description is omitted;

here, the contact points of the balls on the support plate 21 and the middle plate 5 may be connected in a straight line, so that the imaging assembly 4 can realize independent anti-shake for each axis under the driving action of the first driving member and the second driving member according to the first embodiment, and the imaging assembly 4 does not interfere with each other, has no crosstalk, and has good anti-shake effect when rotating around the X axis and the Y axis.

Third embodiment

Different from the two embodiments described above are: the first supporting member 24 may be disposed on the top surface of the supporting plate 21, and the second supporting member 34 may be disposed on the top surface of the middle plate 5, where the first supporting member 24 is in line contact or multipoint contact with the bottom surface of the middle plate 5, and the second supporting member 34 is in line contact or multipoint contact with the bottom surface of the carrier 32 (not shown in the figure);

the specific principle is also consistent with that of the first embodiment, and the imaging assembly 4 is driven by the first driving member and the second driving member, so that redundant description is omitted, independent anti-shake of each axis can be realized by the imaging assembly 4, and the imaging assembly 4 does not interfere with each other, has no crosstalk and has good anti-shake effect when rotating around the X axis and the Y axis.

Fourth embodiment

As shown in fig. 10 and 11, the imaging assembly 4 is a module, the periphery of the module is provided with a housing 11, the first supporting member 24 and the second supporting member 34 are all balls, and specifically, a plurality of bottom grooves can be formed on the middle plate 5 and the mounting seat 1 for placing the balls, and the specific principle is similar to that of the first embodiment to the third embodiment, and here, the module is not repeated, and is further provided with a bent PFC, which is connected with the FPC board 8 below, and plays roles of conducting electricity and partially resetting.

Fifth embodiment

As shown in fig. 12, the center positions of the four side walls of the middle plate 5 are correspondingly provided with a first limiting piece 12 and a second limiting piece 13 in pairs, the first limiting piece 12 limits the rotation angle of the carrier 32, the second limiting piece 13 limits the rotation angle of the middle plate 5, and the first limiting piece 12 and the second limiting piece 13 can be fixed on the middle plate 5 by separate components or can be integrally formed with the middle plate 5;

the first limiting piece 12 and the second limiting piece 13 are both limiting buckles and are all L-shaped plates, wherein the horizontal end of the first limiting piece 12 in an L shape is located above the carrier 32 and is not in contact with the top surface of the carrier 32, and the horizontal end of the second limiting piece 13 in an L shape is located below the mounting seat 1 and is not in contact with the mounting seat 1.

As shown in fig. 3, 5, 8 and 9, the top and bottom surfaces of the middle plate 5 are provided with a plurality of first grooves 9, the size of the notch of the first groove 9 is not smaller than that of the first magnet 23 and the second magnet 31, and the first groove 9 is used for accommodating the first magnet 23 and the second magnet 31, so that the whole volume and the weight of the whole device can be reduced.

As shown in fig. 2 and 6, the winding device further comprises a winding plate 7, a second groove is formed in the bottom surface of the carrier 32, the size of a notch of the second groove is not smaller than that of the winding plate 7, the winding plate 7 and a second coil 33 can be placed in the second groove, the second coil 33 is arranged on the winding plate 7, and the purpose of the winding plate 7 is that: the second coil 33 is directly wound on the winding board 7 and then assembled with the carrier 32, so that the efficiency is high, the second coil 33 and the carrier 32 are difficult to directly assemble, in particular, the first coil 22 can be arranged on the winding board 7, then the winding board 7 is fixed on the FPC board 8, the first coil 22 can also be directly placed on the FPC board 8, and the first coil 22 can also be directly wound without using the winding board 7 because the FPC board 8 is flat and can be directly wound.

In addition, as shown in fig. 4 and 7, in particular, when the imaging assembly 4 is a mirror, the weight of the carrier 32 and the entire motor can be reduced by providing the weight-reducing groove 10 on the carrier 32.

As shown in fig. 2 and 6, the middle plate 5 is made of a magnetic conductive material, and the magnetic conductive material can shield magnetic fields, so that the magnetic fields generated by the two shafts during anti-shake can not interfere with each other, and can attract the magnets, so that the assembly is convenient.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a no crosstalk moves axle anti-shake device, includes mount pad (1), be equipped with anti-shake structure on mount pad (1), its characterized in that, anti-shake structure includes first anti-shake part and second anti-shake part, be equipped with imaging module (4) on the second anti-shake part, first anti-shake part includes first driving piece and first support piece (24), first driving piece drive second anti-shake part and imaging module (4) rotate round first support piece (24), second anti-shake part includes second driving piece and second support piece (34), second support piece (34) and first support piece (24) are all perpendicular with the horizontal plane parallel and the projection on the horizontal plane, second driving piece drive imaging module (4) rotate round second support piece (34).

2. The crosstalk-free shift-axis anti-shake device according to claim 1, characterized in that: the imaging component (4) is a reflecting mirror or a module.

3. The crosstalk-free shift-axis anti-shake device according to claim 1, characterized in that: the utility model provides a flexible printed circuit board (FPC) comprises a mounting base (1), a first driving piece comprises a first magnet (23) and a first coil (22), mount pad (1) bottom is equipped with FPC board (8), FPC board (8) top surface is equipped with backup pad (21), FPC board (8) top surface bilateral symmetry is equipped with a plurality of first coils (22) that pass backup pad (21), first support piece (24) contact with backup pad (21) top surface and lie in between two first coils (22), first support piece (24) top is connected with medium plate (5), medium plate (5) bottom surface is equipped with first magnet (23), first magnet (23) are located first coil (22) top, two line between first magnet (23) and two line between first coil (22) are all perpendicular with the projection of first support piece (24) on medium plate (5) top surface.

4. The crosstalk-free shift-axis anti-shake apparatus according to claim 3, wherein: the second driving piece comprises a second magnet (31) and a second coil (33), a plurality of second magnets (31) are symmetrically arranged on two sides of the top surface of the middle plate (5), the second supporting piece (34) is in contact with the top surface of the middle plate (5) and is located between the two second magnets (31), a carrier (32) is arranged on the top of the second supporting piece (34), the second coil (33) is arranged on the bottom surface of the carrier (32), the second coil (33) is located above the second magnets (31), the connecting lines between the two second magnets (31) and the connecting lines between the two second coils (33) are perpendicular to the projection of the second supporting piece (34) on the top surface of the middle plate (5), and the connecting lines between the two first magnets (23) and the connecting lines between the two first coils (22) are perpendicular to the projection of the connecting lines between the two second magnets (31) and the connecting lines between the two second coils (33) on the top surface of the middle plate (5).

5. The crosstalk-free shift-axis anti-shake device of claim 4, wherein: the first supporting piece (24) is in line contact or multipoint contact with the supporting plate (21) and the second supporting piece (34) is in line contact or multipoint contact with the middle plate (5).

6. The crosstalk-free shift-axis anti-shake device of claim 4, wherein: a plurality of elastic pieces (6) are arranged between the supporting plate (21) and the middle plate (5) and between the middle plate (5) and the carrier (32).

7. The crosstalk-free shift-axis anti-shake device of claim 4, wherein: the novel electric motor further comprises a winding plate (7), wherein a second groove is formed in the bottom surface of the carrier (32), the second coil (33) is arranged on the winding plate (7), and the size of a notch of the second groove is not smaller than that of the winding plate (7).

8. The crosstalk-free shift-axis anti-shake device of claim 4, wherein: a plurality of first grooves (9) are formed in the top surface and the bottom surface of the middle plate (5), and the size of the notch of each first groove (9) is not smaller than that of each first magnet (23) and each second magnet (31).

9. The crosstalk-free shift-axis anti-shake device of claim 4, wherein: the four side wall center positions of the middle plate (5) are correspondingly provided with a first limiting part (12) and a second limiting part (13) in pairs, the first limiting part (12) limits the rotation angle of the carrier (32), and the second limiting part (13) limits the rotation angle of the middle plate (5).

10. The crosstalk-free shift-axis anti-shake device of claim 5, wherein: the middle plate (5) is made of magnetic conductive materials.