Anti-shake structure, lens assembly and shooting device

Abstract

The invention discloses an anti-shake structure, a lens assembly and a shooting device.The anti-shake structure comprises a shell, a floating structure, a first sliding fit structure, a second sliding fit structure, a magnetic structure and a driving device.The floating structure is installed in the shell and comprises a connecting piece and a bearing table; the connecting piece is movably connected with the shell in the second direction, the bearing table is movably connected with the connecting piece in the third direction, the bearing table is used for installing an image sensor, and the first sliding fit structure is arranged between the connecting piece and the shell and comprises a first rolling part, a first fit part and a second sliding fit structure. And the magnetic structure is arranged between the connecting piece and the bearing table and comprises a second rolling part and a second matching part, the first matching part abuts against the first rolling part through the magnetic structure, and the second matching part abuts against the second rolling part through the magnetic structure. According to the scheme, through the mode that the rolling part abuts against the matching part, the assembly precision is improved while movement of the floating structure is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and in particular to an anti-shake structure, a lens assembly and a shooting device. Background Art

[0002] Lens stabilization, commonly referred to as optical image stabilization, is a technology used to reduce blur in photos or videos caused by camera shake when shooting handheld. This technology mainly compensates for camera shake by moving specific lens groups and image sensors inside the lens.

[0003] The existing anti-shake structure generally adopts a guide shaft nesting structure and a ball magnetic suspension drive structure. Among them, the guide shaft nesting structure is implemented by using multiple sets of shaft holes. This implementation method has a large gap and low anti-shake accuracy. The ball magnetic suspension drive structure needs to add a set of drives to limit its rotation direction on the basis of two-axis anti-shake. This implementation method increases the size of the overall structure and the difficulty of drive control, and the structure is relatively complex. Summary of the invention

[0004] The main purpose of the present invention is to provide an anti-shake structure, a lens assembly and a shooting device, aiming to solve the problem that the existing anti-shake structure cannot have both simple structure and high anti-shake accuracy.

[0005] To achieve the above object, the present invention provides an anti-shake structure, comprising:

[0006] case;

[0007] a floating structure, installed in the housing and spaced apart from the inner wall of the housing along a first direction, the floating structure comprising a connecting member and a bearing platform, the connecting member being movably connected to the housing along a second direction, the bearing platform being movably connected to the connecting member along a third direction, and the bearing platform being used for mounting an image sensor;

[0008] A first sliding fit structure is provided between the connecting member and the housing, and comprises a first rolling portion and a first fitting portion, one of which is fixedly provided on the housing, and the other is fixedly provided on the connecting member, and the first fitting portion can be in close contact with the first rolling portion;

[0009] A second sliding matching structure is provided between the connecting member and the bearing platform, and comprises a second rolling portion and a second matching portion, one of which is fixedly provided on the connecting member, and the other is fixedly provided on the bearing platform, and the second matching portion can be in close contact with the second rolling portion;

[0010] a magnetic structure installed in the housing, for making the first matching portion abut against the first rolling portion, and the second matching portion abut against the second rolling portion; and

[0011] The driving assembly is installed in the shell and is used to drive the supporting platform to move along the second direction and the third direction.

[0012] In one embodiment, the first rolling portion includes:

[0013] a first mounting seat, disposed on the housing or the connecting member, wherein a first groove extending along a second direction is disposed on a side of the first mounting seat opposite to the connecting member or the housing; and

[0014] A first rolling ball, tightly disposed in the first groove, with a portion of the first rolling ball protruding from the first groove;

[0015] The first matching portion includes a first slider having a second groove extending along a second direction, the notch of the second groove being arranged opposite to the notch of the first groove and being used to abut against the exposed portion of the first ball so that the first ball rolls when the first slider is in sliding contact with the first ball;

[0016] The second rolling part comprises:

[0017] A second mounting seat is disposed on the supporting platform or the connecting member, and a third groove extending along a third direction is disposed on a side of the second mounting seat opposite to the connecting member or the supporting platform; and

[0018] A second rolling ball is tightly disposed in the third groove, and a portion of the second rolling ball protrudes from the third groove;

[0019] The second mating portion includes a second slider having a fourth groove extending along a third direction. The notch of the fourth groove is arranged opposite to the notch of the third groove so as to abut against the exposed portion of the second ball so that the second ball rolls during the sliding contact between the second slider and the second ball.

[0020] In one embodiment, the groove walls of the first groove in the third direction that are opposite to each other are arranged to be inclined outwardly toward the second groove; and / or,

[0021] The groove walls of the second groove in the third direction are arranged to be inclined outwardly toward the first groove; and / or,

[0022] The groove walls of the third groove opposite to each other in the second direction are inclined outwardly toward the fourth groove; and / or,

[0023] The groove walls of the fourth groove opposite to each other in the second direction are inclined outwardly toward the third groove.

[0024] In one embodiment, four first mounting seats are provided, and the four first mounting seats are arranged at intervals along the circumference of the housing or the connecting member, four first balls are provided corresponding to the first mounting seats, and four first sliders are provided corresponding to the first mounting seats; and / or,

[0025] There are four second mounting seats, which are spaced apart along the circumference of the support platform or the connecting member, four second balls are arranged corresponding to the second mounting seats, and four second sliders are arranged corresponding to the second mounting seats.

[0026] In one embodiment, the driving assembly includes a first driving mechanism, the first driving mechanism includes a first driving magnetic strip and a first driving coil, the first driving magnetic strip is arranged on the housing, the first driving magnetic strip forms a magnetic field distributed along a first direction, the first driving coil is fixed to the carrier platform and is located in the magnetic field generated by the first driving magnetic strip, the plane where the first driving coil is located extends along a third direction, and the first driving coil is used to form an electromagnetic thrust along a second direction with the first driving magnetic strip when energized;

[0027] The driving component also includes a second driving mechanism, which includes a second driving magnetic strip and a second driving coil. The second driving magnetic strip is arranged on the shell, and the second driving magnetic strip forms a magnetic field distributed along the first direction. The second driving coil is fixed to the supporting platform and is located in the magnetic field generated by the second driving magnetic strip. The plane where the second driving coil is located extends along the second direction. The second driving coil is used to form an electromagnetic thrust along a third direction with the second driving magnetic strip when energized.

[0028] In one embodiment, the driving assembly further comprises a first magnet sheet, wherein the first magnet sheet is disposed on the first driving magnetic strip to enhance the magnetic field generated by the first driving magnetic strip; and / or,

[0029] The driving component further includes a second magnetic focusing magnet sheet, which is disposed on the second driving magnetic strip to enhance the magnetic field generated by the second driving magnetic strip.

[0030] In one embodiment, the magnetic structure includes a first magnetic attraction portion and a third matching portion magnetically matched with the first magnetic attraction portion, which are sequentially arranged along a first direction, wherein one of the first magnetic attraction portion and the third matching portion is arranged on the connecting member, and the other is arranged on the housing;

[0031] The magnetic structure includes a second magnetic attraction portion and a fourth matching portion that is magnetically matched with the second magnetic attraction portion, which are sequentially arranged along the first direction. One of the second magnetic attraction portion and the fourth matching portion is arranged on the supporting platform, and the other is arranged on the shell.

[0032] In one embodiment, the anti-shake structure also includes a sensing structure, which includes two sensing magnets and two Hall elements. The two sensing magnets are both arranged on the supporting platform, one of the two sensing magnets is extended along the second direction, and the other is extended along the third direction. The two Hall elements are arranged in the shell and are respectively arranged corresponding to the two sensing magnets.

[0033] The present invention further provides a lens assembly, comprising the above-mentioned anti-shake structure, wherein the anti-shake structure comprises:

[0034] case;

[0035] a floating structure, installed in the housing and spaced apart from the inner wall of the housing along a first direction, the floating structure comprising a connecting member and a bearing platform, the connecting member being movably connected to the housing along a second direction, the bearing platform being movably connected to the connecting member along a third direction, and the bearing platform being used for mounting an image sensor;

[0036] A first sliding fit structure is provided between the connecting member and the housing, and comprises a first rolling portion and a first fitting portion, one of which is fixedly provided on the housing, and the other is fixedly provided on the connecting member, and the first fitting portion can be in close contact with the first rolling portion;

[0037] A second sliding matching structure is provided between the connecting member and the bearing platform, and comprises a second rolling portion and a second matching portion, one of which is fixedly provided on the connecting member, and the other is fixedly provided on the bearing platform, and the second matching portion can be in close contact with the second rolling portion;

[0038] a magnetic structure installed in the housing, for making the first matching portion abut against the first rolling portion, and the second matching portion abut against the second rolling portion; and

[0039] The driving assembly is installed in the shell and is used to drive the supporting platform to move along the second direction and the third direction.

[0040] The present invention further provides a photographing device, comprising the above-mentioned lens assembly, wherein the lens assembly comprises the above-mentioned anti-shake structure, and the anti-shake structure comprises:

[0041] case;

[0042] a floating structure, installed in the housing and spaced apart from the inner wall of the housing along a first direction, the floating structure comprising a connecting member and a bearing platform, the connecting member being movably connected to the housing along a second direction, the bearing platform being movably connected to the connecting member along a third direction, and the bearing platform being used for mounting an image sensor;

[0043] A first sliding fit structure is provided between the connecting member and the housing, and comprises a first rolling portion and a first fitting portion, one of which is fixedly provided on the housing, and the other is fixedly provided on the connecting member, and the first fitting portion can be in close contact with the first rolling portion;

[0044] A second sliding matching structure is provided between the connecting member and the bearing platform, and comprises a second rolling portion and a second matching portion, one of which is fixedly provided on the connecting member, and the other is fixedly provided on the bearing platform, and the second matching portion can be in close contact with the second rolling portion;

[0045] a magnetic structure installed in the housing, for making the first matching portion abut against the first rolling portion, and the second matching portion abut against the second rolling portion; and

[0046] The driving assembly is installed in the shell and is used to drive the supporting platform to move along the second direction and the third direction.

[0047] The technical solution of the present invention realizes the sliding of the support platform in the second direction and the third direction by setting the first sliding matching structure and the second sliding matching structure, meeting the basic requirements of the image sensor. Specifically, the first sliding matching structure includes a first matching part and a first rolling part, and the second sliding matching structure includes a second matching part and a second rolling part, so that under the action of the magnetic structure, the matching part and the rolling part can be tightly matched without any gap, so that the image sensor can be limited in the second direction and the third direction. While the structure is simple, this solution reduces the dimensional accuracy requirements of the structure, improves the anti-shake assembly accuracy, and effectively improves the deflection of the picture. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0049] Figure 1 A schematic structural diagram of an embodiment of an anti-shake structure provided by the present invention;

[0050] Figure 2 for Figure 1 An exploded schematic diagram of the middle anti-shake structure in the first direction;

[0051] Figure 3 for Figure 1 An exploded schematic diagram of a part of the middle anti-shake structure in the first direction;

[0052] Figure 4 for Figure 1 A schematic diagram of the structure of the middle shell;

[0053] Figure 5 for Figure 1 Schematic diagram of the cross-section of the middle anti-shake structure at AA.

[0054] Description of Figure Numbers:

[0055] 1000, anti-shake structure; 1, housing; 2, floating structure; 21, connecting member; 22, bearing platform; 3, first sliding matching structure; 31, first rolling part; 311, first mounting seat; 3111, first groove; 312, first ball; 32, first matching part; 321, first slider; 3211, second groove; 4, second sliding matching structure; 41, second rolling part; 411, second mounting seat; 4111, third groove; 412, second ball; 42, second matching part; 42 1. Second slider; 4211. Fourth groove; 5. Magnetic structure; 51. First magnetic attraction part; 52. Third matching part; 53. Second magnetic attraction part; 54. Fourth matching part; 6. Driving assembly; 61. First driving mechanism; 611. First driving magnetic strip; 612. First driving coil; 62. Second driving mechanism; 621. Second driving magnetic strip; 622. Second driving coil; 7. Induction structure; 71. Induction magnet; 72. Hall element; 8. Flexible circuit board; 9. OIS control circuit board.

[0056] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] 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.

[0058] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0059] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0060] Lens stabilization, commonly referred to as optical image stabilization, is a technology used to reduce blur in photos or videos caused by camera shake when shooting handheld. This technology mainly compensates for camera shake by moving specific lens groups and image sensors inside the lens.

[0061] The existing anti-shake structure generally adopts a guide shaft nesting structure and a ball magnetic suspension drive structure. Among them, the guide shaft nesting structure is implemented by using multiple sets of shaft holes. This implementation method has a large gap and low anti-shake accuracy. The ball magnetic suspension drive structure needs to add a set of drives to limit its rotation direction on the basis of two-axis anti-shake. This implementation method increases the size of the overall structure and the difficulty of drive control, and the structure is relatively complex.

[0062] The main purpose of the present invention is to provide an anti-shake structure, a lens assembly and a shooting device, aiming to solve the problem that the existing anti-shake structure cannot have both simple structure and high anti-shake accuracy.

[0063] See also Figure 1 and Figure 2The present invention proposes an anti-shake structure 1000, comprising a shell 1, a floating structure 2, a first sliding matching structure 3, a second sliding matching structure 4, a magnetic structure 5 and a driving assembly 6, wherein the floating structure 2 is installed in the shell 1 and is spaced apart from the inner wall of the shell 1 along a first direction, the floating structure 2 comprises a connecting member 21 and a bearing platform 22, the connecting member 21 is movably connected to the shell 1 along a second direction, the bearing platform 22 is movably connected to the connecting member 21 along a third direction, the bearing platform 22 is used for installing an image sensor, the first sliding matching structure 3 is arranged between the connecting member 21 and the shell 1, and comprises a first rolling portion 31 and a first matching portion 32, one of which is fixed to the shell 1, and the other is fixed to the shell 1. One is fixed on the connecting member 21, and the first matching portion 32 can be in close contact with the first rolling portion 31. The second sliding matching structure 4 is arranged between the connecting member 21 and the supporting platform 22, including a second rolling portion 41 and a second matching portion 42, one of which is fixed on the connecting member 21, and the other is fixed on the supporting platform 22. The second matching portion 42 can be in close contact with the second rolling portion 41. The magnetic structure 5 is installed in the shell 1 to make the first matching portion 32 abut against the first rolling portion 31, and the second matching portion 42 abut against the second rolling portion 41. The driving component 6 is installed in the shell 1 to drive the supporting platform 22 to move along the second direction and the third direction.

[0064] The technical solution of the present invention realizes the sliding of the support platform 22 in the second direction and the third direction by setting the first sliding matching structure 3 and the second sliding matching structure 4, which meets the basic requirements of the image sensor. Specifically, the first sliding matching structure 3 includes a first matching part 32 and a first rolling part 31, and the second sliding matching structure 4 includes a second matching part 42 and a second rolling part 41, so that under the action of the magnetic structure 5, the matching part and the rolling part can be tightly matched without any gap, so that the image sensor can be limited in the second direction and the third direction. While the structure is simple, this solution reduces the dimensional accuracy requirements of the structure, improves the anti-shake assembly accuracy, and effectively improves the deflection of the picture.

[0065] It should be noted that the rolling part can be a needle roller, a roller, a wheel or other components, which are devices that use rolling motion to transmit force and reduce friction, and this solution does not limit this.

[0066] In the specific embodiment of the present invention, please refer to Figures 3 to 5The first rolling portion 31 includes a first mounting seat 311 and a first ball 312. The first mounting seat 311 is arranged on the shell 1 or the connecting member 21. A first groove 3111 extending along the second direction is arranged on the side of the first mounting seat 311 relative to the connecting member 21 or the shell 1. The first ball 312 is tightly arranged in the first groove 3111, and a part of the first ball 312 protrudes from the first groove 3111; the first matching portion 32 includes a first slider 321. The first slider 321 has a second groove 3211 extending along the second direction. The notch of the second groove 3211 is arranged opposite to the notch of the first groove 3111 to abut against the exposed part of the first ball 312, so that the first ball 312 rolls during the sliding contact between the first slider 321 and the first ball 312; the corresponding The second rolling portion 41 includes a second mounting seat 411 and a second ball 412. The second mounting seat 411 is arranged on the supporting platform 22 or the connecting member 21. A third groove 4111 extending along a third direction is provided on the side of the second mounting seat 411 relative to the connecting member 21 or the supporting platform 22. The second ball 412 is tightly arranged in the third groove 4111, and a part of the second ball 412 protrudes from the third groove 4111; the second matching portion 42 includes a second slider 421. The second slider 421 has a fourth groove 4211 extending along the third direction. The notch of the fourth groove 4211 is arranged opposite to the notch of the third groove 4111, so as to abut against the exposed part of the second ball 412, so that the second ball 412 rolls during the sliding contact between the second slider 421 and the second ball 412. With such a configuration, the groove and the ball will not have a matching gap, and the precision requirement for the size of the components is not high, as long as the diameter of the ball is larger than the width of the groove notch, thereby simplifying the structure and improving the assembly precision of the structure. At the same time, the sliding resistance of the groove in the form of sliding matching with the ball is smaller, preventing the occurrence of the movement jam of the bearing platform 22.

[0067] Furthermore, the groove walls of the first groove 3111 that are opposite in the third direction are inclined outwardly toward the second groove 3211; the groove walls of the second groove 3211 that are opposite in the third direction are inclined outwardly toward the first groove 3111; the groove walls of the third groove 4111 that are opposite in the second direction are inclined outwardly toward the fourth groove 4211; the groove walls of the fourth groove 4211 that are opposite in the second direction are inclined outwardly toward the third groove 4111. It is worth mentioning that the above four schemes can be set one by one or at the same time, and this scheme does not impose specific restrictions. With such a setting, compared with the groove notch that clamps the ball, in this embodiment, since the groove wall is inclined outwardly, the opposite sides of the groove wall are against the surface of the ball, so that the force on the groove is more uniform, the stability of the overall structure is improved, and the service life of the structure is increased.

[0068] It should be noted that the present solution does not limit the specific number of the first mounting seat 311 and the second mounting seat 411. In a preferred embodiment, please refer to Figure 3 and Figure 4 , there are four first mounting seats 311, which are spaced apart along the circumference of the housing 1 or the connecting member 21, four first balls 312 are spaced apart corresponding to the first mounting seats 311, and four first sliders 321 are spaced apart corresponding to the first mounting seats 311; there are four second mounting seats 411, which are spaced apart along the circumference of the bearing platform 22 or the connecting member 21, four second balls 412 are spaced apart corresponding to the second mounting seats 411, and four second sliders 421 are spaced apart corresponding to the second mounting seats 411. With such a configuration, the forces on each mounting seat are more uniform, and the configuration of more mounting seats can reduce the forces on each mounting seat, thereby improving the stability of the overall structure. When the above-mentioned implementation method is used and a virtual position occurs, that is, a certain first slider 321 does not contact the corresponding first ball 312, or a certain second slider 421 does not contact the corresponding second ball 412, in another embodiment, three first mounting seats 311 are provided, and the three first mounting seats 311 are arranged at intervals along the circumference of the housing 1 or the connecting member 21, three first balls 312 are provided corresponding to the first mounting seats 311, and three first sliders 321 are provided corresponding to the first mounting seats 311; three second mounting seats 411 are provided, and the three second mounting seats 411 are arranged at intervals along the circumference of the bearing platform 22 or the connecting member 21, and three second balls 412 are provided corresponding to the second mounting seats 411, and three second sliders 421 are provided corresponding to the second mounting seats 411. By reducing the setting of one mounting seat, it is possible to ensure that all balls can fit tightly with the slider, thereby improving the assembly accuracy of the present structure.

[0069] It should also be noted that the present solution does not limit the specific number of the first balls 312 in the first mounting seat 311. In the above embodiment, the first mounting seat 311 is provided with only one first ball 312, so that the structure is simpler. In other embodiments, a plurality of first balls 312 are arranged in the first mounting seat 311, and the plurality of first balls 312 are closely arranged in the first mounting seat 311 along the extension direction of the first groove 3111. It is worth mentioning that there is a very small gap between the plurality of first balls 312, so as to limit each first ball 312 within a controllable range, allowing the first ball 312 to have a slight displacement in the second direction, so as to facilitate its own rolling. Such a setting has a simple structure and is easy to install. In addition, the plurality of first balls 312 can evenly share the load, reduce the force borne by each first ball 312, thereby reducing the load of a single first ball 312 and extending the service life of the first mounting seat 311 and the first ball 312. It is understandable that the second mounting seat 411, the second ball bearing 412 and the second sliding block 421 can be implemented in the same manner as described above, which will not be elaborated herein.

[0070] Specifically, please refer to Figure 3In one embodiment of the present invention, the driving component 6 includes a first driving mechanism 61, the first driving mechanism 61 includes a first driving magnetic strip 611 and a first driving coil 612, the first driving magnetic strip 611 is arranged on the housing 1, the first driving magnetic strip 611 forms a magnetic field distributed along a first direction, the first driving coil 612 is fixed to the carrier 22, and is located in the magnetic field generated by the first driving magnetic strip 611, the plane where the first driving coil 612 is located extends along a third direction, and the first driving coil 612 is used to form a magnetic field distributed along a second direction with the first driving magnetic strip 611 when powered on. The driving assembly 6 further comprises a second driving mechanism 62, the second driving mechanism 62 comprises a second driving magnetic strip 621 and a second driving coil 622, the second driving magnetic strip 621 is arranged on the shell 1, the second driving magnetic strip 621 forms a magnetic field distributed along the first direction, the second driving coil 622 is fixed to the carrier 22, and is located in the magnetic field generated by the second driving magnetic strip 621, the plane where the second driving coil 622 is located extends along the second direction, and the second driving coil 622 is used to form an electromagnetic thrust along the third direction with the second driving magnetic strip 621 when powered on. In order to realize the anti-shake function, when the carrier 22 is displaced relative to the shell 1 along the second direction or the third direction, the first driving magnetic strip 611 and the first driving coil 612 are magnetically induced, or the second driving magnetic strip 621 and the second driving coil 622 are magnetically induced, thereby driving the carrier 22 back to the original position, and the original position is the static position of the carrier 22 relative to the shell 1.

[0071] It should be noted that there are many types of the above-mentioned first drive mechanism 61 and the second drive mechanism 62. For example, in other embodiments, the first drive mechanism 61 and the second drive mechanism 62 may include an electric push rod, a linear motor, etc. Specifically, the present application is not limited to this. In the above-mentioned embodiments, the first drive mechanism 61 includes a first drive magnetic strip 611 and a first drive coil 612, and the second drive mechanism 62 includes a second drive magnetic strip 621 and a second drive coil 622. The features can be set one by one or at the same time. When both are set at the same time, the effect is best.

[0072] Furthermore, the driving component 6 also includes a first focusing magnet, which is arranged on the first driving magnetic strip 611 to enhance the magnetic field generated by the first driving magnetic strip 611; the driving component 6 also includes a second focusing magnet sheet, which is arranged on the second driving magnetic strip 621 to enhance the magnetic field generated by the second driving magnetic strip 621.

[0073] Specifically, please refer to Figure 3 and Figure 4In one embodiment of the present invention, the magnetic structure 5 includes a first magnetic attraction portion 51 and a third matching portion 52 that is magnetically matched with the first magnetic attraction portion 51, one of which is arranged in sequence along the first direction and the other of which is arranged in the shell 1; the magnetic structure 5 includes a second magnetic attraction portion 53 and a fourth matching portion 54 that is magnetically matched with the second magnetic attraction portion 53, one of which is arranged in sequence along the first direction and the other of which is arranged in the bearing platform 22 and the other of which is arranged in the shell 1. In this way, the first magnetic attraction portion 51 and the third matching portion 52 are magnetically matched, and the second magnetic attraction portion 53 and the fourth matching portion 54 are magnetically matched to form a suspension structure, so that the first rolling portion 31 abuts against the first matching portion 32, and the second rolling portion 41 abuts against the second matching portion 42, thereby increasing the stability of the connecting member 21 and the bearing platform 22, and having a good effect.

[0074] It should be noted that the first magnetic attraction portion 51 and the second magnetic attraction portion 53 are arranged on the supporting platform 22, the first magnetic attraction portion 51 includes the first driving magnetic strip 611, and the second magnetic attraction portion 53 includes the second driving magnetic strip 621. Such an arrangement makes the anti-shake structure 1000 compact.

[0075] Further, the anti-shake structure 1000 further includes a sensing structure 7, the sensing structure 7 includes two sensing magnets 71 and two Hall elements 72, the two sensing magnets 71 are both arranged on the carrier 22, one of the two sensing magnets 71 is extended along the second direction, and the other is extended along the third direction, and the two Hall elements 72 are arranged on the housing 1, and are respectively arranged corresponding to the two sensing magnets 71. In this way, when the sensing magnet 71 extending along the second direction is displaced along the second direction, the Hall element 72 corresponding thereto can sense the magnetic field change of the sensing magnet 71 extending along the second direction and then calculate the displacement of the sensing magnet 71 extending along the second direction, so as to prepare for the subsequent adjustment of the displacement of the carrier 22 in the second direction. When the sensing magnet 71 extending along the third direction is displaced along the third direction, the Hall element 72 corresponding thereto can sense the magnetic field change of the sensing magnet 71 extending along the third direction and then calculate the displacement of the sensing magnet 71 extending along the third direction, so as to prepare for the subsequent adjustment of the displacement of the carrier 22 in the third direction.

[0076] It should be noted that the anti-shake structure 1000 also includes a flexible circuit board 8, please refer to Figure 1 and Figure 2The flexible circuit board 8 is installed on the housing 1 and is electrically connected to the two Hall elements 72. The two Hall elements 72 are used to feed back the displacement of the carrier 22 to the flexible circuit board 8 to ensure that the carrier 22 moves to the specified position.

[0077] It is worth mentioning that the anti-shake structure 1000 also includes an OIS control circuit board 9, please refer to Figure 1 and Figure 2 The OIS control circuit board 9 is provided with a variety of sensors connected to the flexible circuit board 8 for sensing jitter, and calculating feedback signals to feed back to the flexible circuit board 8, so as to facilitate controlling the driving component 6 to drive the carrier plate to move.

[0078] The present invention further proposes a lens assembly, which includes the above-mentioned anti-shake structure 1000. Since the lens assembly includes the anti-shake structure 1000, the specific structure of the anti-shake structure 1000 refers to the above-mentioned embodiment. Since the anti-shake structure 1000 of the lens assembly adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0079] The present invention also proposes a shooting device, which includes the above-mentioned lens assembly. Since the shooting device includes the lens assembly, the specific structure of the lens assembly refers to the above-mentioned embodiment. Since the lens assembly of the present shooting device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0080] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An anti-shake structure, characterized in that: include: case; a floating structure, installed in the housing and spaced apart from the inner wall of the housing along a first direction, the floating structure comprising a connecting member and a bearing platform, the connecting member being movably connected to the housing along a second direction, the bearing platform being movably connected to the connecting member along a third direction, and the bearing platform being used for mounting an image sensor; A first sliding fit structure is provided between the connecting member and the housing, and comprises a first rolling portion and a first fitting portion, one of which is fixedly provided on the housing, and the other is fixedly provided on the connecting member, and the first fitting portion can be in close contact with the first rolling portion; A second sliding matching structure is provided between the connecting member and the bearing platform, and comprises a second rolling portion and a second matching portion, one of which is fixedly provided on the connecting member, and the other is fixedly provided on the bearing platform, and the second matching portion can be in close contact with the second rolling portion; a magnetic structure installed in the housing, and used to make the first matching portion abut against the first rolling portion, and the second matching portion abut against the second rolling portion; as well as, The driving assembly is installed in the shell and is used to drive the supporting platform to move along the second direction and the third direction.

2. The anti-shake structure according to claim 1, characterized in that: The first rolling part comprises: a first mounting seat, disposed on the housing or the connecting member, wherein a first groove extending along a second direction is disposed on a side of the first mounting seat opposite to the connecting member or the housing; and A first rolling ball, tightly disposed in the first groove, with a portion of the first rolling ball protruding from the first groove; The first matching portion includes a first slider having a second groove extending along a second direction, the notch of the second groove being arranged opposite to the notch of the first groove and being used to abut against the exposed portion of the first ball so that the first ball rolls when the first slider is in sliding contact with the first ball; The second rolling part comprises: A second mounting seat is disposed on the supporting platform or the connecting member, and a third groove extending along a third direction is disposed on a side of the second mounting seat opposite to the connecting member or the supporting platform; and A second rolling ball is tightly disposed in the third groove, and a portion of the second rolling ball protrudes from the third groove; The second mating portion includes a second slider having a fourth groove extending along a third direction. The notch of the fourth groove is arranged opposite to the notch of the third groove so as to abut against the exposed portion of the second ball so that the second ball rolls during the sliding contact between the second slider and the second ball.

3. The anti-shake structure according to claim 2, characterized in that: The groove walls of the first groove in the third direction that are opposite to each other are arranged to be inclined outwardly toward the second groove; and / or, The groove walls of the second groove in the third direction are arranged to be inclined outwardly toward the first groove; and / or, The groove walls of the third groove opposite to each other in the second direction are inclined outwardly toward the fourth groove; and / or, The groove walls of the fourth groove opposite to each other in the second direction are inclined outwardly toward the third groove.

4. The anti-shake structure according to claim 2, characterized in that: There are four first mounting seats, which are spaced apart along the circumference of the housing or the connecting member, four first balls are arranged corresponding to the first mounting seats, and four first sliders are arranged corresponding to the first mounting seats; and / or, There are four second mounting seats, which are spaced apart along the circumference of the support platform or the connecting member, four second balls are arranged corresponding to the second mounting seats, and four second sliders are arranged corresponding to the second mounting seats.

5. The anti-shake structure according to claim 1, characterized in that: The driving assembly includes a first driving mechanism, the first driving mechanism includes a first driving magnetic strip and a first driving coil, the first driving magnetic strip is arranged on the housing, the first driving magnetic strip forms a magnetic field distributed along a first direction, the first driving coil is fixed to the bearing platform and is located in the magnetic field generated by the first driving magnetic strip, the plane where the first driving coil is located extends along a third direction, and the first driving coil is used to form an electromagnetic thrust along a second direction with the first driving magnetic strip when energized; The driving component also includes a second driving mechanism, which includes a second driving magnetic strip and a second driving coil. The second driving magnetic strip is arranged on the shell, and the second driving magnetic strip forms a magnetic field distributed along the first direction. The second driving coil is fixed to the supporting platform and is located in the magnetic field generated by the second driving magnetic strip. The plane where the second driving coil is located extends along the second direction. The second driving coil is used to form an electromagnetic thrust along a third direction with the second driving magnetic strip when energized.

6. The anti-shake structure according to claim 5, characterized in that: The driving assembly further comprises a first magnet sheet, which is disposed on the first driving magnetic strip to enhance the magnetic field generated by the first driving magnetic strip; and / or, The driving component further includes a second magnetic focusing magnet sheet, which is disposed on the second driving magnetic strip to enhance the magnetic field generated by the second driving magnetic strip.

7. The anti-shake structure according to claim 1, characterized in that: The magnetic structure includes a first magnetic attraction portion and a third matching portion that is sequentially arranged along a first direction and magnetically matched with the first magnetic attraction portion, wherein one of the first magnetic attraction portion and the third matching portion is arranged on the connecting member, and the other is arranged on the housing; The magnetic structure includes a second magnetic attraction portion and a fourth matching portion that is magnetically matched with the second magnetic attraction portion, which are sequentially arranged along the first direction. One of the second magnetic attraction portion and the fourth matching portion is arranged on the supporting platform, and the other is arranged on the shell.

8. The anti-shake structure according to claim 1, characterized in that: The anti-shake structure also includes a sensing structure, which includes two sensing magnets and two Hall elements. The two sensing magnets are both arranged on the supporting platform, one of the two sensing magnets is extended along the second direction, and the other is extended along the third direction. The two Hall elements are arranged on the shell and are respectively arranged corresponding to the two sensing magnets.

9. A lens assembly, characterized in that: The invention comprises an anti-shake structure as claimed in any one of claims 1 to 8.

10. A photographing device, characterized in that: Comprising the lens assembly as claimed in claim 9.

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