Anti-shake module

Abstract

The utility model relates to the technical field of anti-shake holders, and discloses an anti-shake module which comprises a fixed structure, a movable structure and a connecting structure. The fixing structure is provided with a first accommodating groove and a first contact wall; the movable structure comprises a movable piece, the movable piece is arranged in the first containing groove, a first installation groove is formed in the outer side wall of the movable piece in a sunken mode, and the first installation groove is provided with a first groove wall; the connecting structure comprises a first ball, the first ball is arranged in the first mounting groove, and the first groove wall and the first contact wall are both in contact with the outer wall of the first ball; according to the anti-shake module provided by the utility model, the first mounting groove is formed in the movable piece, and the first ball is arranged in the first mounting groove, so that the relative position of the first ball and the fixed structure can be changed along with the movement of the movable structure, and the falling reliability of the anti-shake module can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-shake pan platforms, in particular to an anti-shake module. Background Art

[0002] An anti-shake gimbal is a device used to stabilize shooting equipment. It can significantly reduce picture shaking caused by hand shake or other external factors, thereby shooting more stable and clear videos or photos.

[0003] At present, the anti-shake module of the anti-shake gimbal can be mainly divided into a ball-type anti-shake module and a spring-type anti-shake module; in the prior art, the ball-type anti-shake module (reference patent CN114660871A) can achieve multi-axis rotational freedom, and the influence of different posture differences and changes in the direction of gravity on the anti-shake performance is relatively low, and it is widely used; however, as recorded in CN114660871A, the fixed structure includes an outer ball seat, and the movable structure includes an inner ball seat, and each outer ball seat includes a base and two clamping parts; the ball is arranged between each clamping part and the inner ball seat, and a groove is opened on the clamping part, and the ball is arranged in the groove; because the ball of the patent is arranged on the fixed structure, the relative position of the ball and the fixed structure of the patent will not change with the movement of the movable structure, so that the anti-shake module may not be able to quickly adjust the internal structure to cope with the impact when it is subjected to a drop impact and cause the anti-shake module to be easily damaged, thereby reducing the drop reliability of the anti-shake module. Utility Model Content

[0004] Aiming to solve at least one of the technical problems existing in the prior art, the utility model provides an anti-shake module which can improve the drop reliability.

[0005] In order to achieve the above-mentioned purpose, the utility model provides an anti-shake module, including a fixed structure, a movable structure and a connecting structure; the fixed structure has a first accommodating groove, and the fixed structure has a first contact wall; the movable structure includes a movable part, and the movable part is arranged in the first accommodating groove, and the outer wall of the movable part is recessed to provide a first installation groove, and the first installation groove has a first groove wall; the connecting structure includes a first ball, and the first ball is arranged in the first installation groove, and the first groove wall and the first contact wall are both in contact with the outer wall of the first ball.

[0006] In some embodiments, the fixing structure includes an elastic connecting member and a fixing member, the fixing member is provided with the first accommodating groove, the elastic connecting member is connected to the fixing member, and the elastic connecting member has the first contact wall.

[0007] In some embodiments, the elastic connecting member includes a connecting bracket and a planar spring sheet, two ends of the planar spring sheet are respectively connected to the fixing member and the connecting bracket, and the connecting bracket has the first contact wall and is located between the movable member and the fixing member.

[0008] In some embodiments, the planar spring piece includes a first fixed portion, a first elastic portion and a first connecting portion, the two ends of the first elastic portion are respectively connected to the first fixed portion and the first connecting portion, the first fixed portion is connected to the fixing member, and the first connecting portion is connected to the connecting bracket; wherein, the width of the first elastic portion is L, and the thickness of the first elastic portion is t, satisfying: L>2t.

[0009] In some embodiments, the groove depth of the first mounting groove is E, and the radius of the first ball is R, satisfying: R<E<2R.

[0010] In some embodiments, there are multiple first installation grooves, and there are multiple first balls, and the multiple first balls are respectively arranged in the multiple first installation grooves in a one-to-one correspondence.

[0011] In some embodiments, there are multiple planar spring sheets, and the multiple planar spring sheets are connected to the connecting bracket and distributed around the center of the connecting bracket.

[0012] In some embodiments, the first groove wall is a first spherical groove wall, the first contact wall is a first spherical contact wall, and the center of the first spherical groove wall coincides with the center of the first spherical contact wall.

[0013] In some embodiments, the outer wall of the movable part is recessed to form a second mounting groove, the second mounting groove has a second groove wall, and the fixed part has a second contact wall; the connecting structure also includes a second ball, the second ball is arranged in the second mounting groove, and the second groove wall and the second contact wall are both in contact with the outer wall of the second ball.

[0014] In some embodiments, there are multiple second mounting grooves, and there are multiple second rolling balls, and the multiple second rolling balls are respectively arranged in the multiple second mounting grooves in a one-to-one correspondence.

[0015] In some embodiments, the second groove wall is a second spherical groove wall, the second contact wall is a second spherical contact wall, and the center of the first spherical groove wall, the center of the second spherical groove wall, and the center of the second spherical contact wall coincide with each other.

[0016] In some embodiments, the groove depth of the second mounting groove is e, and the radius of the first ball is r, satisfying: r<e<2r.

[0017] In some embodiments, the anti-shake module also includes a shell, the interior of the shell has an installation cavity, and the shell has an opening connected to the installation cavity; the fixed structure also includes a coil group and a first circuit board, the fixing part is arranged in the installation cavity, the coil group is connected to the fixing part and is located in the installation cavity, and the first circuit board is connected to the fixing part and is electrically connected to the coil group; the movable structure also includes an imaging module and a magnet group, the movable part has a second accommodating groove, the imaging module is arranged in the second accommodating groove and is connected to the movable part, the magnet group is connected to the outer wall of the movable part and is arranged opposite to the coil group, and one end of the imaging module is passed through the opening; the connecting structure also includes a second circuit board, the second circuit board includes a second fixing part, a second elastic part and a second connecting part, the two ends of the second elastic part are respectively connected to the second fixing part and the second connecting part, the second fixing part is connected to the fixed structure and / or the shell, and the second connecting part is connected to the movable structure.

[0018] Compared with the prior art, the anti-shake module provided by the embodiment of the utility model has the beneficial effect that a first mounting groove is arranged on the movable part and a first ball is arranged in the first mounting groove, so that the movement of the movable structure will drive the first ball to move, so that the relative position of the first ball and the fixed structure can change with the movement of the movable structure, and further when the anti-shake module falls, the movable structure will drive the first ball to move to absorb and disperse the impact energy, thereby reducing the risk of damage to the anti-shake module and improving the falling reliability of the anti-shake module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded diagram of an anti-shake module provided in the first embodiment of the present utility model;

[0020] Figure 2 This is a top view of an anti-shake module provided by the first embodiment of the utility model;

[0021] Figure 3 yes Figure 2 AA section view;

[0022] Figure 4 yes Figure 3 An enlarged schematic diagram of point C;

[0023] Figure 5 yes Figure 3 An enlarged schematic diagram of point D;

[0024] Figure 6 yes Figure 2 BB cross-sectional view;

[0025] Figure 7This is a schematic diagram of the assembly of the elastic connecting member, the fixing member and the movable member provided in the first embodiment of the utility model;

[0026] Figure 8 It is a schematic diagram of the structure of the planar spring piece provided in the first embodiment of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of a movable part provided in the first embodiment of the utility model;

[0028] Fig.10 This is a schematic diagram of the control principle of the magnet group and the coil group provided in the first embodiment of the utility model;

[0029] Fig.11 is a top view of the third circuit board provided in the first embodiment of the utility model when it is assembled on the second circuit board;

[0030] Fig.12 It is a side view of a third circuit board provided by an embodiment of the utility model when it is assembled on the second circuit board;

[0031] Fig.13 It is a bottom view of a third circuit board provided by an embodiment of the utility model when it is assembled on the second circuit board;

[0032] Fig.14 This is an exploded diagram of an anti-shake module provided in the second embodiment of the present utility model;

[0033] Fig.15 This is a schematic diagram of the assembly of the elastic connecting member, the fixing member and the movable member provided in the second embodiment of the present utility model;

[0034] Fig.16 It is a schematic diagram of the structure of the planar spring piece provided in the second embodiment of the utility model;

[0035] Fig.17 This is a schematic diagram of the control principle of the magnet group and the coil group provided in the second embodiment of the present utility model.

[0036] In the figure, 1, fixing structure; 11, elastic connecting member; 12, fixing member; 13, coil group; 14, first circuit board; 111, connecting bracket; 112, flat spring sheet; 121, first accommodating groove; 122, second contact wall; 131, coil member; 141, driver; 142, actuator; 1111, first contact wall; 1121, first fixing part; 1122, first elastic part; 1123, first connecting part;

[0037] 2. movable structure; 21. movable part; 22. imaging module; 23. magnet group; 201. first boss; 202. second boss; 211. first mounting groove; 212. second mounting groove; 213. second accommodating groove; 221. lens; 222. third circuit board; 223. focus motor; 231. first magnet; 232. second magnet; 2111. first groove wall; 2121. second groove wall; 2221. image sensor; 2222. vibration sensor; 2223. connector;

[0038] 3. Connecting structure; 31. First ball bearing; 32. Second ball bearing; 33. Second circuit board; 331. Second fixing part; 332. Second elastic part; 333. Second connecting part;

[0039] 4. housing; 41. upper housing; 42. lower housing; 411. mounting cavity; 412. opening;

[0040] a. First reference spherical surface; b. Second reference spherical surface. DETAILED DESCRIPTION

[0041] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of the embodiments of the present utility model, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0047] Embodiment 1

[0048] like Figure 1-6 As shown, an anti-shake module provided by the first embodiment of the utility model includes a fixed structure 1, a movable structure 2 and a connecting structure 3.

[0049] The fixed structure 1 has a first accommodating groove 121, and the fixed structure 1 has a first contact wall 1111; the movable structure 2 includes a movable part 21, and the movable part 21 is arranged in the first accommodating groove 121. The outer wall of the movable part 21 is recessed with a first mounting groove 211, and the first mounting groove 211 has a first groove wall 2111; the connecting structure 3 includes a first ball 31, and the first ball 31 is arranged in the first mounting groove 211, and the first groove wall 2111 and the first contact wall 1111 are both in contact with the outer wall of the first ball 31.

[0050] Based on this technical solution, by setting a first mounting groove 211 on the movable part 21 and setting the first ball 31 in the first mounting groove 211, the movement of the movable structure 2 will drive the first ball 31 to move, so that the relative position of the first ball 31 and the fixed structure 1 can change with the movement of the movable structure 2, and then when the anti-shake module falls, the movable structure 2 will drive the first ball 31 to move to absorb and disperse the impact energy, thereby reducing the risk of damage to the anti-shake module and improving the falling reliability of the anti-shake module.

[0051] In this embodiment, the first receiving groove 121 is a through groove penetrating the fixing member 12 .

[0052] In other configurations, the first receiving groove 121 may also be a groove configuration that does not penetrate the fixing member 12 .

[0053] Preferably, the surface of the first mounting groove 211 in contact with the first rolling ball 31 may be electroplated with metal.

[0054] See also Figure 2 , Figure 3 and Figure 8 Preferably, the groove depth of the first installation groove 211 is E, and the radius of the first ball 31 is R, which satisfies: R<E<2R. The adoption of R<E can make the first installation groove 211 better limit the first ball 31; the adoption of E<2R can make a safe gap between the movable part 21 and the elastic connecting part 11, avoiding interference between the movable part 21 and the elastic connecting part 11.

[0055] Preferably, there are multiple first installation grooves 211 , and multiple first rolling balls 31 . The multiple first rolling balls 31 are respectively disposed in the multiple first installation grooves 211 .

[0056] In this embodiment, there are two first mounting grooves 211 symmetrically arranged about the central axis of the movable member 21 , and there are two first balls 31 symmetrically arranged in the two first mounting grooves 211 .

[0057] In some other implementations, the number of the first installation slots 211 may also be any number such as three, four, or five, which is not limited here.

[0058] Preferably, the first groove wall 2111 is a first spherical groove wall, the first contact wall 1111 is a first spherical contact wall, and the center of the first spherical groove wall coincides with the center of the first spherical contact wall. The first spherical groove wall and the first spherical contact wall are used and their centers are made to coincide, which has the advantage of matching the spherical features of the first spherical groove wall, the first spherical contact wall and the first ball 31, so that the safety clearance of the impact surface of the movable part 21 in any degree of freedom is consistent, which helps to improve the reliability and safety of the anti-shake module.

[0059] In this embodiment, the first groove wall 2111 is a first spherical groove wall, that is, the first groove wall 2111 is in a spherical shape.

[0060] In some other embodiments, the first groove wall 2111 may also be in any shape such as a plane shape, an inclined surface shape, a curved surface shape, an arc surface shape, etc., which is not limited here.

[0061] See also Figure 2 , Figure 4 and Fig. 9 The outer wall of the movable part 21 provided in the first embodiment of the utility model is recessed with a second mounting groove 212, the second mounting groove 212 has a second groove wall 2121, and the fixed part 12 has a second contact wall 122. The connecting structure 3 also includes a second ball 32, the second ball 32 is arranged in the second mounting groove 212, and the second groove wall 2121 and the second contact wall 122 are both in contact with the outer wall of the second ball 32. There are multiple second mounting grooves 212, and there are multiple second balls 32, and the multiple second balls 32 are respectively arranged in the multiple second mounting grooves 212. By using multiple first mounting grooves 211, multiple first balls 31, multiple second mounting grooves 212 and multiple second balls 32, the movable structure 2 can undergo multi-axis rotation relative to the fixed structure 1, and the influence of different posture differences on the anti-shake performance is relatively low.

[0062] In this embodiment, there are two second mounting grooves 212 symmetrically arranged about the central axis of the movable member 21 , and there are two second balls 32 symmetrically arranged in the two second mounting grooves 212 .

[0063] In some other embodiments, the number of the second mounting slots 212 may also be any number such as three, four, or five, which is not limited here.

[0064] In this embodiment, the two first installation grooves 211 and the two second installation grooves 212 are alternately distributed around the central axis of the movable member 21 .

[0065] The second groove wall 2121 is a second spherical groove wall, the second contact wall 122 is a second spherical contact wall, and the center of the first spherical groove wall, the center of the second spherical groove wall, and the center of the second spherical contact wall coincide with each other. The first spherical groove wall, the first spherical contact wall, the second spherical groove wall, and the second spherical contact wall are used and the centers of the four coincide with each other. The advantage is that the spherical features of the first spherical groove wall, the first spherical contact wall, the second spherical groove wall, and the second spherical contact wall, the first ball 31, and the second ball 32 can be matched, which helps to make the safe clearance of the impact surface of the movable part 21 consistent under any degree of freedom, and the movable part 21 does not interfere with the fixed structure 1, which helps to improve reliability and safety.

[0066] Preferably, the groove depth of the second mounting groove 212 is e, and the radius of the first ball 31 is r, which satisfies: r<e<2r. The adoption of r<e can make the second mounting groove 212 better limit the second ball 32; the adoption of e<2r can make a safe gap between the movable part 21 and the fixed part 12, avoiding interference between the movable part 21 and the elastic connecting part 11.

[0067] In this embodiment, R=r, E=e.

[0068] The first spherical groove wall and the second spherical groove wall are located on the first reference spherical surface a, and the first spherical contact wall and the second spherical contact wall are located on the second reference spherical surface b.

[0069] Preferably, the surface of the second mounting groove 212 in contact with the ball can be electroplated with metal.

[0070] Optionally, a plurality of bosses may be provided on the outer side wall of the movable member 21 , and the boss features may be spherical features, wherein a portion of the bosses are provided with first mounting grooves 211 , and another portion of the bosses are provided with second mounting grooves 212 .

[0071] In this embodiment, four bosses are provided on the outer wall of the movable member 21 , and the four bosses include two first bosses 201 and two second bosses 202 . Two first mounting grooves 211 are respectively opened on the first bosses 201 , and two second mounting grooves 212 are respectively opened on the second bosses 202 .

[0072] See also Figure 1-Figure 8The fixing structure 1 provided in the first embodiment of the utility model includes an elastic connecting member 11 and a fixing member 12. The fixing member 12 is provided with a first accommodating groove 121. The elastic connecting member 11 is connected to the fixing member 12 and is located between the movable member 21 and the fixing member 12. The elastic connecting member 11 has a first contact wall 1111. By making the outer wall of the first ball 31 contact the first groove wall 2111 and the first contact wall 1111 respectively, the elastic force of the elastic connecting member 11 can be used to reduce the impact force on the ball and the movable structure 2 and reduce the risk of damage to the anti-shake module, which helps to further improve the drop reliability of the anti-shake module.

[0073] The elastic connecting member 11 includes a connecting bracket 111 and a planar spring sheet 112. The two ends of the planar spring sheet 112 are respectively connected to the fixing member 12 and the connecting bracket 111. The connecting bracket 111 has a first contact wall 1111 and is located between the movable member 21 and the fixing member 12. In this way, when the anti-shake module is subjected to a drop impact, the elastic force of the planar spring sheet 112 can be used to reduce the impact force, reduce the risk of damage to the anti-shake module, and improve the drop reliability of the anti-shake module. At the same time, the connecting bracket 111 and the planar spring sheet 112 are used as an elastic buffer structure, which can be compatible with a closed-loop control anti-shake module or an open-loop control anti-shake module.

[0074] In the prior art (reference patents: CN115580770A, CN114660871A), since the metal elastic parts connecting the ball bearings do not adopt a planar design and need to be bent by a stamping process, the elastic parts of these patents have low yield strength and high elongation, which affects the drop reliability. If the elastic parts of these patents are made of non-metallic materials, the yield strength of non-metallic materials is usually much lower than that of metal materials, which is not conducive to drop reliability. Therefore, the utility model can have a higher yield strength by adopting a planar spring piece 112 with a planar structure, which helps to improve the drop reliability of the anti-shake module. At the same time, the planar spring piece 112 can be produced by an etching process to reduce costs; the assembly method of the planar spring piece 112 with a planar structure is also relatively simple, which helps to improve the assembly efficiency of the anti-shake module.

[0075] The planar spring piece 112 includes a first fixing portion 1121, a first elastic portion 1122 and a first connecting portion 1123. The two ends of the first elastic portion 1122 are respectively connected to the first fixing portion 1121 and the first connecting portion 1123. The first fixing portion 1121 is connected to the fixing member 12, and the first connecting portion 1123 is connected to the connecting bracket 111. The width of the first elastic portion 1122 is L, and the thickness of the first elastic portion 1122 is t, which satisfies: L>2t. The first elastic portion 1122 that satisfies the above relationship has the advantage of being able to achieve a better anti-shake effect.

[0076] In this embodiment, a planar spring piece 112 includes a first fixing portion 1121 , two first elastic portions 1122 and a first connecting portion 1123 . The first fixing portion 1121 is connected to the two first elastic portions 1122 , and the first connecting portion 1123 is connected to the two first elastic portions 1122 .

[0077] In some other embodiments, a planar spring piece 112 may also include two, three, four, or any other number of first fixing portions 1121, a planar spring piece 112 may also include two, three, four, or any other number of first elastic portions 1122, and a planar spring piece 112 may also include two, three, four, or any other number of first connecting portions 1123, which are not limited here.

[0078] In this embodiment, the first connection portion 1123 is connected to the connection column of the connection bracket 111 through a through hole.

[0079] In some other embodiments, the first connection portion 1123 may also be connected to the connection bracket 111 by any method such as embedding, welding, screw connection, integral molding, etc., which is not limited here.

[0080] Preferably, there are multiple planar spring pieces 112, which are connected to the connecting bracket 111 and distributed around the center of the connecting bracket 111. In this way, when the anti-shake module is subjected to a drop impact, the elastic connecting member 11 can better utilize the elastic force of the planar spring pieces 112 to reduce the impact force, which helps to further improve the drop reliability of the anti-shake module.

[0081] In this embodiment, the number of the planar spring pieces 112 is four, and the four planar spring pieces 112 are respectively connected to four corners of the connecting bracket 111 .

[0082] In some other implementations, the number of the planar spring pieces 112 may also be any number such as two, three, five, six, etc., which is not limited here.

[0083] See also Figure 1-Figure 3 ,and Figure 10-13 The anti-shake module provided in the first embodiment of the utility model further includes a housing 4, the interior of the housing 4 has a mounting cavity 411, and the housing 4 has an opening 412 connected to the mounting cavity 411. The housing 4 can shield and protect the fixed structure 1, the movable structure 2 and the connecting structure 3.

[0084] The fixing structure 1 also includes a coil group 13 and a first circuit board 14. The fixing member 12 is arranged in the installation cavity 411 and connected to the shell 4. The coil group 13 is connected to the fixing member 12 and is located in the installation cavity 411. The first circuit board 14 is connected to the fixing member 12 and is electrically connected to the coil group 13.

[0085] In this embodiment, the housing 4 includes an upper shell 41 and a lower shell 42 , and the upper shell 41 and the lower shell 42 are connected and enclosed to form a mounting cavity 411 .

[0086] In this embodiment, the upper shell 41 is made of a non-magnetic material, and the lower shell 42 is made of a non-magnetic material.

[0087] The movable structure 2 also includes an imaging module 22 and a magnet group 23. The movable part 21 has a second accommodating groove 213. The imaging module 22 is arranged in the second accommodating groove 213 and connected to the movable part 21. The magnet group 23 is connected to the outer wall of the movable part 21 and arranged opposite to the coil group 13. One end of the imaging module 22 is inserted into the opening 412. The first circuit board 14, the coil group 13 and the magnet group 23 are used. When the movable structure 2 needs to perform anti-shake movement, the coil group 13 can be powered by the first circuit board 14 to generate a magnetic field to drive the magnet group 23 to drive the movable part 21 to move, so that the movable part 21 can drive the imaging module 22 to perform anti-shake movement from the initial preset position; when the movable structure 2 does not need to perform anti-shake movement, the coil group 13 loses power, the coil group 13 has no magnetic field, and the imaging module 22 is driven back to the initial preset position by the elastic force of the second circuit board 33.

[0088] In this embodiment, the second receiving groove 213 is a through groove penetrating the movable member 21 .

[0089] In some other implementations, the second receiving groove 213 may also be a groove that does not penetrate the movable member 21 .

[0090] The connecting structure 3 also includes a second circuit board 33 electrically connected to the first circuit board 14. The second circuit board 33 includes a second fixed portion 331, a second elastic portion 332 and a second connecting portion 333. The two ends of the second elastic portion 332 are respectively connected to the second fixed portion 331 and the second connecting portion 333. The second fixed portion 331 is connected to the fixed structure 1 and / or the shell 4, and the second connecting portion 333 is connected to the movable structure 2.

[0091] In this embodiment, the second fixing portion 331 is connected to the housing 4 .

[0092] In some other implementations, the second fixing portion 331 may also be connected to any component of the fixing structure 1 , which is not limited here.

[0093] In this embodiment, the second connecting portion 333 is connected to the imaging module 22 .

[0094] In some other implementations, the second connection portion 333 may also be connected to other components of the movable structure 2 such as the movable member 21 and the magnet group 23, which is not limited here.

[0095] A driver 141 and an actuator 142 are installed on the first circuit board 14. The actuator 142 is used to sense the magnetic field changes of the magnet group 23 on the movable part 21 and feed back the magnetic field signal to the driver 141. The coil group 13 and the first circuit board 14 are electrically connected. The driver 141 is used to control the current of the coil group 13. By changing the current size and current direction of each coil to change the coil thrust size and pushing direction, the movable part 21 drives the imaging module 22 to rotate around at least one axis, thereby helping to improve the anti-shake control accuracy and achieve the purpose of optimal imaging effect.

[0096] Preferably, a plurality of actuators 142 are mounted on the first circuit board 14 .

[0097] Optionally, the second circuit board 33 may be a flexible circuit board or a hard-soft circuit board, wherein the second elastic portion 332 is configured using a flexible circuit board.

[0098] Preferably, an elastic buffer gap E is provided between the connecting bracket 111 and the upper shell 41 .

[0099] See also Figure 1 , Figure 3 , Figure 6 ,and Figure 10-13 The imaging module 22 provided in the first embodiment of the utility model is an autofocus imaging module, which includes a lens 221, a third circuit board 222 and a focus motor 223. The lens 221 is arranged in the second accommodating groove 213 and is connected to the movable part 21. The third circuit board 222 is connected to one end of the lens 221. The end of the lens 221 away from the third circuit board 222 is inserted into the opening 412. The focus motor 223 is connected to the lens 221 and is electrically connected to the third circuit board 222. The third circuit board 222 is electrically connected to the second circuit board 33.

[0100] Specifically, the third circuit board 222 is mechanically and electrically connected to the second circuit board 33 via the connector 2223 .

[0101] An image sensor 2221 and a vibration sensor 2222 are mounted on the third circuit board 222 .

[0102] The magnet group 23 includes four magnets, which include two first magnets 231 and two second magnets 232. The first magnets 231 and the second magnets 232 are both in an arc shape. The magnetization arrangement directions of the first magnets 231 and the second magnets 232 are different. The two first magnets 231 are adjacent to each other, and the two second magnets 232 are adjacent to each other. The first magnet 231 is magnetized with radial single-sided double poles, and the second magnet 232 is magnetized with transverse single-sided double poles.

[0103] The coil assembly 13 includes four coil members 131 , and the four coil members 131 correspond to four magnets respectively.

[0104] The planar spring piece 112 includes a first fixing portion 1121 , two first elastic portions 1122 and a first connecting portion 1123 . The first fixing portion 1121 is connected to the two first elastic portions 1122 , and the first connecting portion 1123 is connected to the two first elastic portions 1122 .

[0105] Embodiment 2

[0106] See also Figure 14-17 , different from the first embodiment, the imaging module 22 provided in the second embodiment includes a lens 221 and a third circuit board 222, the lens 221 is disposed in the second accommodating groove 213 and connected to the movable member 21, the third circuit board 222 is connected to one end of the lens 221, and one end of the lens 221 away from the third circuit board 222 is inserted into the opening 412. That is, compared with the first embodiment, the imaging module 22 provided in the second embodiment does not include a focus motor 223.

[0107] The magnet group 23 provided in the second embodiment of the present invention includes two magnets, the two magnets are second magnets 232, and the second magnets 232 are magnetized with a lateral single-sided double-pole magnetization.

[0108] The coil assembly 13 includes two coil components 131 , and the two coil components 131 correspond to two magnets respectively.

[0109] The planar spring piece 112 provided in the second embodiment includes a first fixed portion 1121, two first elastic portions 1122 and two first connecting portions 1123. The first fixed portion 1121 is connected to the two first elastic portions 1122. The two first connecting portions 1123 are respectively connected to one end of the two first elastic portions 1122 away from the first fixed portion 1121. The first connecting portion 1123 is embedded in the connecting bracket 111.

[0110] In addition to the structures in the above-mentioned embodiments 1 and 2, other similar structures are also within the protection scope of the present utility model, such as modifying the elastic support structure, changing the elastic support spring structure, opening a ball groove on the mover structure, changing the shape of the ball groove, adding magnets, adding coils, changing the magnet shape structure and other improvements and replacements.

[0111] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An anti-shake module, characterized in that: include: A fixed structure (1), the fixed structure (1) having a first accommodating groove (121), and the fixed structure (1) having a first contact wall (1111); A movable structure (2), the movable structure (2) comprising a movable part (21), the movable part (21) being arranged in the first accommodating groove (121), the outer side wall of the movable part (21) being recessed with a first installation groove (211), the first installation groove (211) having a first groove wall (2111); A connecting structure (3), the connecting structure (3) comprising a first rolling ball (31), the first rolling ball (31) being arranged in a first mounting groove (211), and the first groove wall (2111) and the first contact wall (1111) both being in contact with an outer wall of the first rolling ball (31).

2. The anti-shake module according to claim 1, characterized in that: The fixing structure (1) comprises an elastic connecting member (11) and a fixing member (12), the fixing member (12) is provided with the first accommodating groove (121), the elastic connecting member (11) is connected to the fixing member (12), and the elastic connecting member (11) has the first contact wall (1111).

3. The anti-shake module according to claim 2, characterized in that: The elastic connecting member (11) comprises a connecting bracket (111) and a planar spring sheet (112); two ends of the planar spring sheet (112) are respectively connected to the fixing member (12) and the connecting bracket (111); the connecting bracket (111) has the first contact wall (1111) and is located between the movable member (21) and the fixing member (12).

4. The anti-shake module according to claim 3, characterized in that: The planar spring sheet (112) comprises a first fixing portion (1121), a first elastic portion (1122) and a first connecting portion (1123); two ends of the first elastic portion (1122) are respectively connected to the first fixing portion (1121) and the first connecting portion (1123); the first fixing portion (1121) is connected to the fixing member (12); and the first connecting portion (1123) is connected to the connecting bracket (111); The width of the first elastic portion (1122) is L, and the thickness of the first elastic portion (1122) is t, satisfying: L>2t.

5. The anti-shake module according to claim 2, characterized in that: The groove depth of the first installation groove (211) is E, and the radius of the first ball (31) is R, which satisfies: R<E<2R.

6. The anti-shake module according to claim 2, characterized in that: There are a plurality of the first installation grooves (211), a plurality of the first rolling balls (31), and the plurality of the first rolling balls (31) are arranged in a one-to-one correspondence in the plurality of the first installation grooves (211).

7. The anti-shake module according to claim 3, characterized in that: There are a plurality of planar spring sheets (112), and the plurality of planar spring sheets (112) are connected to the connecting bracket (111) and are distributed around the center of the connecting bracket (111).

8. The anti-shake module according to claim 2, characterized in that: The first groove wall (2111) is a first spherical groove wall, the first contact wall (1111) is a first spherical contact wall, and the center of the first spherical groove wall coincides with the center of the first spherical contact wall.

9. The anti-shake module according to claim 8, characterized in that: The outer side wall of the movable part (21) is recessed to form a second installation groove (212), the second installation groove (212) has a second groove wall (2121), and the fixed part (12) has a second contact wall (122); The connection structure (3) further comprises a second rolling ball (32), wherein the second rolling ball (32) is arranged in the second mounting groove (212), and the second groove wall (2121) and the second contact wall (122) are both in contact with the outer wall of the second rolling ball (32); The number of the second installation grooves (212) is multiple, the number of the second rolling balls (32) is multiple, and the multiple second rolling balls (32) are respectively arranged in the multiple second installation grooves (212) in a one-to-one correspondence; The second groove wall (2121) is a second spherical groove wall, the second contact wall (122) is a second spherical contact wall, and the center of the first spherical groove wall, the center of the second spherical groove wall and the center of the second spherical contact wall coincide with each other; The groove depth of the second mounting groove (212) is e, and the radius of the first ball (31) is r, satisfying: r<e<2r.

10. The anti-shake module according to any one of claims 2 to 9, characterized in that: It also comprises a housing (4), the housing (4) having an installation cavity (411) inside, and the housing (4) having an opening (412) communicating with the installation cavity (411); The fixing structure (1) further comprises a coil group (13) and a first circuit board (14); the fixing member (12) is arranged in the installation cavity (411); the coil group (13) is connected to the fixing member (12) and is located in the installation cavity (411); and the first circuit board (14) is connected to the fixing member (12) and is electrically connected to the coil group (13); The movable structure (2) further comprises an imaging module (22) and a magnet group (23); the movable part (21) has a second accommodating groove (213); the imaging module (22) is arranged in the second accommodating groove (213) and connected to the movable part (21); the magnet group (23) is connected to the outer wall of the movable part (21) and is arranged opposite to the coil group (13); one end of the imaging module (22) is inserted into the opening (412); The connection structure (3) further comprises a second circuit board (33), the second circuit board (33) comprising a second fixing portion (331), a second elastic portion (332) and a second connecting portion (333), the two ends of the second elastic portion (332) being respectively connected to the second fixing portion (331) and the second connecting portion (333), the second fixing portion (331) being connected to the fixed structure (1) and / or the housing (4), and the second connecting portion (333) being connected to the movable structure (2).

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