阅读说明：本技术 磁悬浮防抖结构、镜头组件及拍摄装置 (Magnetic suspension anti-shake structure, camera lens subassembly and shooting device ) 是由 刘辉 王浩 吕祖文 雷萌 梁海清 于 2021-09-30 设计创作，主要内容包括：本发明公开一种磁悬浮防抖结构、镜头组件及拍摄装置,磁悬浮防抖结构包括磁悬浮结构及防抖结构；磁悬浮结构包括固定件、滚动浮设于固定件上的浮动件、以及设于固定件和浮动件之间的至少两个磁吸结构,固定件和浮动件其中一个为第一安装件,另一个为第二安装件,磁吸结构包括磁体以及能够与磁体磁性相吸的磁吸部,磁体的磁极沿其延展方向分布,且两个磁体的磁极分布方向相互垂直,磁体设于第一安装件,磁吸部设于第二安装件；防抖结构,包括设于第二安装件的至少两个防抖线圈,至少两个防抖线圈分别对应至少两个磁体设置,且至少两个防抖线圈的绕设中心均分别朝向对应的磁体设置,解决了现有拍摄装置无法有效应对镜头抖动的问题。(The invention discloses a magnetic suspension anti-shake structure, a lens assembly and a shooting device, wherein the magnetic suspension anti-shake structure comprises a magnetic suspension structure and an anti-shake structure; the magnetic suspension structure comprises a fixing piece, a floating piece and at least two magnetic attraction structures, wherein the floating piece is arranged on the fixing piece in a rolling and floating mode, the at least two magnetic attraction structures are arranged between the fixing piece and the floating piece, one of the fixing piece and the floating piece is a first mounting piece, the other one of the fixing piece and the floating piece is a second mounting piece, each magnetic attraction structure comprises a magnet and a magnetic attraction part capable of magnetically attracting the magnet, the magnetic poles of the magnets are distributed along the extension direction of the magnets, the magnetic pole distribution directions of the two magnets are mutually vertical, the magnets are arranged on the first mounting piece, and the magnetic attraction parts are arranged on the second mounting piece; anti-shake structure, including two at least anti-shake coils of locating the second installed part, two at least anti-shake coils correspond two at least magnet settings respectively, and two at least anti-shake coils set up towards the magnet setting that corresponds respectively around establishing the center, have solved the problem that current shooting device can't effectively deal with the camera lens shake.)

1. A magnetic levitation anti-shake structure, comprising:

the magnetic suspension structure comprises a fixing piece, a floating piece and at least two magnetic attraction structures, wherein the floating piece is arranged on the fixing piece in a rolling floating mode, the at least two magnetic attraction structures are arranged between the fixing piece and the floating piece, one of the fixing piece and the floating piece is a first mounting piece, the other of the fixing piece and the floating piece is a second mounting piece, each magnetic attraction structure comprises a magnet and a magnetic attraction part capable of magnetically attracting the magnet, the magnetic poles of the magnets are distributed along the extension direction of the magnets, the magnetic pole distribution directions of the two magnets are mutually vertical, the magnets are arranged on the first mounting piece, and the magnetic attraction parts are arranged on the second mounting piece; and the number of the first and second groups,

anti-shake structure, including locating two at least anti-shake coils on the second installed part, two at least anti-shake coil corresponds two at least respectively the magnet sets up, just at least two anti-shake coils equip equally around establishing the center do not towards corresponding the magnet sets up.

2. The magnetic levitation vibration damping structure as recited in claim 1, wherein the floating member has two opposite first ends and two opposite second ends, the two first ends are distributed in a direction perpendicular to the two second ends;

the anti-shake coil that corresponds with the structure sets up to anti-shake group is inhaled to the magnetism, in two at least anti-shake groups, one of them anti-shake group corresponds first end sets up, and another anti-shake group corresponds the second end sets up.

3. The magnetic levitation vibration preventing structure as recited in claim 2, wherein the vibration preventing groups are arranged in at least three numbers, wherein the magnetic poles of the magnets in two vibration preventing groups are arranged in the same direction and are not coincident with each other, and are arranged corresponding to the two first ends, and the other vibration preventing group is arranged corresponding to the second end.

4. The magnetic levitation anti-shake structure of claim 1, further comprising a flexible circuit board disposed on the fixing member;

the at least two anti-shake coils are electrically connected with the flexible circuit board.

5. The magnetic levitation anti-shake structure of claim 4, further comprising at least two position sensors disposed on the fixing member, the at least two position sensors being electrically connected to the flexible circuit board.

6. The magnetic levitation vibration damping structure as recited in claim 5, wherein the at least two position sensors are respectively disposed in the surrounding space of the at least two vibration damping coils.

7. The magnetic levitation vibration preventing structure as recited in claim 1, wherein the fixing member is recessed with a seating groove formed on an end surface thereof facing the floating member;

the magnetic suspension anti-shake structure further comprises a covering piece, and the covering piece is covered on the notch of the placement groove to form a placement cavity together with the fixing piece;

the floating piece is limited and movable in the mounting cavity.

8. A lens assembly, comprising a magnetic levitation structure as claimed in any one of claims 1 to 7.

9. The lens assembly of claim 8, wherein the floating member has a photosensitive assembly attached thereon;

the at least two anti-shake coils are located on the peripheral side of the photosensitive assembly.

10. A camera comprising the lens assembly of any one of claims 8 to 9.

Technical Field

The invention relates to the technical field of optical lenses, in particular to a magnetic suspension anti-shake structure, a lens assembly and a shooting device.

Background

When people use shooting electronic products to shoot, the situation that the shot picture is not clear often appears, the reason is that people shake in the shooting process and cause, the shake exists objectively and is eliminated fundamentally, the shake directly causes the lens assembly connected with the electronic products to shake indirectly, so that the photosensitive picture is not clear, and therefore the problem that technical personnel in the field need to solve urgently is to design an anti-shake structure capable of effectively coping with the shake.

Disclosure of Invention

The invention mainly aims to provide a magnetic suspension anti-shake structure, a lens assembly and a shooting device, and aims to solve the problem that the existing shooting device cannot effectively cope with lens shake.

In order to achieve the above object, the present invention provides a magnetic suspension anti-shake structure, including:

the magnetic suspension structure comprises a fixing piece, a floating piece and at least two magnetic attraction structures, wherein the floating piece is arranged on the fixing piece in a rolling floating mode, the at least two magnetic attraction structures are arranged between the fixing piece and the floating piece, one of the fixing piece and the floating piece is a first mounting piece, the other of the fixing piece and the floating piece is a second mounting piece, each magnetic attraction structure comprises a magnet and a magnetic attraction part capable of magnetically attracting the magnet, the magnetic poles of the magnets are distributed along the extension direction of the magnets, the magnetic pole distribution directions of the two magnets are mutually vertical, the magnets are arranged on the first mounting piece, and the magnetic attraction parts are arranged on the second mounting piece; and the number of the first and second groups,

anti-shake structure, including locating two at least anti-shake coils on the second installed part, two at least anti-shake coil corresponds two at least respectively the magnet sets up, just at least two anti-shake coils equip equally around establishing the center do not towards corresponding the magnet sets up.

Optionally, the floating member has two opposite first ends and two opposite second ends, and the directions of the two first ends and the directions of the two second ends are perpendicular to each other;

the anti-shake coil that corresponds with the structure sets up to anti-shake group is inhaled to the magnetism, in two at least anti-shake groups, one of them anti-shake group corresponds first end sets up, and another anti-shake group corresponds the second end sets up.

Optionally, the anti-shake groups are arranged at least three, wherein the magnetic poles of the magnets in the two anti-shake groups are arranged in the same and non-coincident direction, and are arranged corresponding to the same first end, and the other anti-shake group is arranged corresponding to the second end.

Optionally, the magnetic suspension anti-shake structure further includes a flexible circuit board disposed on the fixing member;

the at least two anti-shake coils are electrically connected with the flexible circuit board.

Optionally, the magnetic suspension anti-shake structure further includes at least two position sensors disposed on the fixing member, and the at least two position sensors are electrically connected to the flexible circuit board.

Optionally, the at least two position sensors are respectively and correspondingly arranged in the surrounding space of the at least two anti-shake coils.

Optionally, a mounting groove is formed in the end face, facing the floating piece, of the fixing piece in a concave manner;

the magnetic suspension anti-shake structure further comprises a covering piece, and the covering piece is covered on the notch of the placement groove to form a placement cavity together with the fixing piece;

the floating piece is limited and movable in the mounting cavity.

The invention also provides a lens assembly, which comprises the magnetic suspension structure, wherein the magnetic suspension structure comprises:

the magnetic suspension structure comprises a fixing piece, a floating piece and at least two magnetic attraction structures, wherein the floating piece is arranged on the fixing piece in a rolling floating mode, the at least two magnetic attraction structures are arranged between the fixing piece and the floating piece, one of the fixing piece and the floating piece is a first mounting piece, the other of the fixing piece and the floating piece is a second mounting piece, each magnetic attraction structure comprises a magnet and a magnetic attraction part capable of magnetically attracting the magnet, the magnetic poles of the magnets are distributed along the extension direction of the magnets, the magnetic pole distribution directions of the two magnets are mutually vertical, the magnets are arranged on the first mounting piece, and the magnetic attraction parts are arranged on the second mounting piece; and the number of the first and second groups,

anti-shake structure, including locating two at least anti-shake coils on the second installed part, two at least anti-shake coil corresponds two at least respectively the magnet sets up, just at least two anti-shake coils equip equally around establishing the center do not towards corresponding the magnet sets up.

Optionally, a photosensitive assembly is attached to the floating member;

the at least two anti-shake coils are located on the peripheral side of the photosensitive assembly.

The invention further provides a shooting device, which comprises the lens assembly, wherein the lens assembly comprises the magnetic suspension anti-shake structure, and the magnetic suspension anti-shake structure comprises:

the magnetic suspension structure comprises a fixing piece, a floating piece and at least two magnetic attraction structures, wherein the floating piece is arranged on the fixing piece in a rolling floating mode, the at least two magnetic attraction structures are arranged between the fixing piece and the floating piece, one of the fixing piece and the floating piece is a first mounting piece, the other of the fixing piece and the floating piece is a second mounting piece, each magnetic attraction structure comprises a magnet and a magnetic attraction part capable of magnetically attracting the magnet, the magnetic poles of the magnets are distributed along the extension direction of the magnets, the magnetic pole distribution directions of the two magnets are mutually vertical, the magnets are arranged on the first mounting piece, and the magnetic attraction parts are arranged on the second mounting piece; and the number of the first and second groups,

anti-shake structure, including locating two at least anti-shake coils on the second installed part, two at least anti-shake coil corresponds two at least respectively the magnet sets up, just at least two anti-shake coils equip equally around establishing the center do not towards corresponding the magnet sets up.

In the technical scheme provided by the invention, at least two anti-shake coils are arranged and respectively correspond to the magnets with the vertical magnetic pole distribution directions, so that the floating part can be acted by two vertical acting forces in a floating plane and then displaced towards the resultant force direction of the floating part, the possible shake of the fixing part is overcome, and the magnetic suspension anti-shake structure at least has the capability of preventing the floating part from shaking in the displacement direction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of a magnetic levitation anti-shake structure according to an embodiment of the present invention;

FIG. 2 is an exploded view of an embodiment of the magnetic levitation anti-shake structure of FIG. 1 in another direction;

FIG. 3 is a schematic view of a lens assembly according to an embodiment of the present invention;

the reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Magnetic suspension anti-shake structure	131	Magnet body
1	Magnetic suspension structure	132	Magnetic part
				11	Fixing piece	2	Anti-shake structure
111	Placing groove	21	Anti-shake coil
				112	First limit groove	3	Flexible circuit board
12	Floating part	4	Position sensor
				121	First end	5	Cover assembly
122	Second end	6	Ball bearing
				123	Second limit groove	200	Photosensitive assembly
13	Magnetic attraction structure	1000	Lens assembly

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are provided in the embodiment of the present invention, they are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.

In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

When people use shooting electronic products to shoot, the situation that the shot picture is not clear often appears, the reason is that people shake in the shooting process and cause, the shake exists objectively and is eliminated fundamentally, the shake directly causes the lens assembly connected with the electronic products to shake indirectly, the photosensitive picture is not clear, and therefore the problem that technical personnel in the field need to solve urgently is to design the anti-shake structure capable of effectively coping with the shake

In view of the above, the present invention provides a magnetic levitation anti-shake structure 100, and fig. 1 to 2 illustrate an embodiment of the magnetic levitation anti-shake structure 100 according to the present invention.

Referring to fig. 1 and fig. 2, in this embodiment, the magnetic levitation anti-shake structure 100 includes a magnetic levitation structure 1 and an anti-shake structure 2, where the magnetic levitation structure 1 includes a fixed member 11, a floating member 12 rolling and floating on the fixed member 11, and at least two magnetic attraction structures 13 disposed between the fixed member 11 and the floating member 12, one of the fixed member 11 and the floating member 12 is a first mounting member, and the other is a second mounting member, each magnetic attraction structure 13 includes a magnet 131 and a magnetic attraction portion 132 capable of magnetically attracting the magnet 131, magnetic poles of each magnet 131 are distributed along an extending direction of the magnet 131, magnetic pole distribution directions of the two magnets 131 are perpendicular to each other, the magnet 131 is disposed on the first mounting member, and the magnetic attraction portion 132 is disposed on the second mounting member; anti-shake structure 2 is including locating two at least anti-shake coils 21 on the second installed part, two at least anti-shake coils 21 correspond two at least respectively magnet 131 sets up, just two at least anti-shake coils 21 are equallyd divide around establishing the center and are do not towards corresponding magnet 131 sets up.

In the technical scheme provided by the invention, at least two anti-shake coils 21 are arranged and respectively arranged corresponding to the magnets 131 with at least two magnetic poles in the vertical distribution direction, so that the floating piece 12 can be acted by two vertical acting forces on the floating plane and then displaced towards the resultant force direction of the floating piece to overcome the shake possibly occurring on the fixing piece 11, and the magnetic suspension anti-shake structure 100 at least has the capability of preventing the floating piece 12 from being displaced and shaken.

It is understood that the magnetic attraction portion 132 may be the magnet 131, or may be a magnetic attraction member, such as: a member made of a material such as iron, cobalt, or nickel, which is not particularly limited as long as it magnetically attracts the magnet 131; meanwhile, the arrangement parts are not particularly limited as long as the fixing piece 11 and the floating piece 12 can be attracted to each other through magnetic attraction; meanwhile, the anti-shake coil 21 can change the magnitude and direction of the interaction force with the magnet 131 according to the change in the magnitude and direction of its own energization current.

Further, in this embodiment, referring to fig. 1 and fig. 2, the floating member 12 has two opposite first ends 121 and two opposite second ends 122, and the directions of the two first ends 121 and the directions of the two second ends 122 are perpendicular to each other; the corresponding anti-shake coil 21 and the magnetic attraction structure 13 are configured as anti-shake groups, wherein one of the at least two anti-shake groups is configured corresponding to the first end 121, and the other anti-shake group is configured corresponding to the second end 122; so set up, can make floating piece 12 is the regular shape setting, the position that sets up of anti-shake subassembly also can be ordered relatively, is convenient for floating piece 12 reaches mechanical equilibrium state fast.

Further, in order to enable the magnetic levitation anti-shake structure 100 to have the capability of preventing shake in other forms, in this embodiment, please refer to fig. 1 and fig. 2, at least three anti-shake groups are provided, wherein the magnetic poles of the magnets 131 in two anti-shake groups have the same distribution direction and are not overlapped, and are provided corresponding to the two first ends 121, and the other anti-shake group is provided corresponding to the second end 122; it can be understood that the two anti-shake groups are arranged corresponding to the two first ends 121, and may be arranged at the same first end 121, or may be arranged at different first ends 121, and in these two arrangement modes, resultant force of interaction force generated in the two anti-shake groups can generate a rotation moment on the floating member 12 body, so as to realize a rotation action on the floating member 12, so as to overcome the rotation shake generated by the fixing member 11.

In this embodiment, referring to fig. 1 and fig. 2, the magnetic suspension anti-shake structure 100 further includes a flexible circuit board 3 disposed on the fixing member 11; at least two anti-shake coils 21 electricity is connected flexible circuit board 3, so set up, flexible circuit board 3 can be for anti-shake coils 21 power supply, wherein, pass through and current direction and size can be regulated and control for conventional means in flexible circuit board 3, do not need here to be repeated, can realize anti-shake coils 21 for magnet 131 magnetic induction direction and the change of size, just flexible circuit board 3 set up in on mounting 11, avoid flexible circuit board 3 is to the motion of floating piece 12 produces the influence.

It should be noted that, when the floating member 12 is located on the first mounting member, the anti-shake coil 21 is located on the floating member 12, correspondingly, the magnet 131 is located on the fixing member 11, and the anti-shake coil 21 and the flexible circuit board 3 may be connected by a pre-folded wire; when the floating member 12 is located on the second mounting member, the anti-shake coil 21 is located on the fixing member 11, correspondingly, the magnet 131 is located on the floating member 12, and the anti-shake coil 21 is directly connected with the flexible circuit board 3, so that the connection effect of the connection manner is good, and the connection between the flexible circuit board 3 and the anti-shake coil 21 does not affect the floating of the floating member 12;

in order to adjust the direction and magnitude of the current in the anti-shake coil 21 according to the relative displacement of the floating member 12 with respect to the fixed member 11, in this embodiment, please refer to fig. 1 and fig. 2, the magnetic levitation anti-shake structure 100 further includes at least two position sensors 4 disposed on the fixed member 11, the at least two position sensors 4 are electrically connected to the flexible circuit board 3, so that the position sensors 4 can feed back the displacement information of the floating member 12 with respect to the position sensors 4 to the flexible circuit board 3, and the flexible circuit board 3 correspondingly controls the magnitude and direction of the current in the corresponding anti-shake coil 21 according to the displacement information, thereby implementing real-time regulation and control of the displacement of the floating member 12.

Further, in this embodiment, the at least two position sensors 4 are respectively and correspondingly disposed in the surrounding space of the at least two anti-shake coils 21, and thus, the displacement information fed back by the position sensors 4 is the displacement information of the floating member 12 relative to the anti-shake coils 21, so that the flexible circuit board 3 controls the magnitude and direction of the current in the anti-shake coils 21 more accurately.

In this embodiment, at least three anti-shake groups are provided, wherein the magnetic poles of the magnets 131 in two anti-shake groups have the same distribution direction and are not overlapped, and the two anti-shake groups are provided corresponding to the two first ends 121, and the other anti-shake group is provided corresponding to the second end 122. The magnetic suspension anti-shake structure 100 further comprises at least three position sensors 4 arranged on the fixing member 11, the at least three position sensors 4 are electrically connected with the flexible circuit board 3, and the at least three position sensors 4 are respectively and correspondingly arranged in surrounding spaces of the at least three anti-shake coils 21; so set up, can make anti-shake group can adjust according to the big or small accurate control of displacement volume when carrying out rotation regulation the interaction force that produces among the anti-shake group makes floating piece 12 can reply to the balanced position of relative static atress as early as possible.

In this embodiment, referring to fig. 1 and fig. 2, a placement groove 111 is formed in a concave manner on an end surface of the fixing member 11 facing the floating member 12; the magnetic suspension anti-shake structure 100 further comprises a cover member 5, wherein the cover member 5 is covered on the notch of the placement groove 111 to form a placement cavity together with the fixing member 11; the floating part 12 is limited and movable in the mounting cavity, and thus the arrangement can prevent the floating part 12 from falling off from the fixing part 11 after the magnetic suspension anti-shaking structure 100 is impacted, and the reliability and the safety of the device are improved.

In this embodiment, referring to fig. 1 and fig. 2, the magnetic levitation anti-shake structure 100 further includes a ball 6 disposed between the fixed member 11 and the floating member 12, a first limit groove 112 and a second limit groove 123 are respectively formed on opposite end surfaces of the fixed member 11 and the floating member 12, and notches of the first limit groove 112 and the second limit groove 123 are disposed oppositely; the two opposite ends of the ball 6 are respectively and correspondingly accommodated in the first limiting groove 112 and the second limiting groove 123, so that the movable arrangement of the fixing member 11 relative to the floating member 12 in a plane is realized, when the fixing member 11 shakes, the floating member 12 can be kept around the original position relative to the fixing member 11, and the instantaneous deviation is generated to the minimum extent.

In addition, the present invention further provides a lens assembly 1000, please refer to fig. 3, where the lens assembly 1000 includes the magnetic suspension structure 1 in the above scheme, and it should be noted that the structure of the magnetic suspension structure 1 in the lens assembly 1000 may refer to the embodiment of the magnetic suspension structure 1, which is not described herein again; since the magnetic suspension structure 1 is used in the lens assembly 1000 of the present invention, the embodiment of the lens assembly 1000 of the present invention includes all technical solutions of all embodiments of the magnetic suspension structure 1, and the achieved technical effects are also completely the same, and are not described herein again.

Further, a photosensitive assembly 200 is attached to the floating member 12 in the lens assembly 1000; the at least two anti-shake coils 21 are located on the peripheral side of the photosensitive assembly 200, and the arrangement is such that the photosensitive assembly 200 is in a good mechanical balance state.

In addition, the present invention further provides a shooting device, where the shooting device includes the lens assembly 1000 in the above-mentioned scheme, and it should be noted that the structure of the lens assembly 1000 in the shooting device may refer to the embodiment of the lens assembly 1000, and details are not repeated here; since the lens assembly 1000 is used in the photographing device of the present invention, the embodiment of the photographing device of the present invention includes all technical solutions of all embodiments of the lens assembly 1000, and the achieved technical effects are also completely the same, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.