High-advantage OIS structure and motor

Abstract

The invention relates to an OIS structure with a high advantage and a motor. The OIS structure comprises a first guide piece used for guiding a support to move in the direction perpendicular to an optical axis; the first guide piece comprises a first side located above the optical axis direction and a second side located below the optical axis direction. The first side is matched with at least one first guide part for guiding the bracket along a first direction; the second side is matched with at least one second guide part for guiding the bracket along a second direction; a first sliding groove matched with the first guide part is formed in the bottom of the support. A base is arranged at the bottom of the first guide piece; a second sliding groove matched with the second guide part is formed in the base; through the synergistic effect of the guide parts in different directions of the first side and the second side, the support can move more stably and more accurately in the plane perpendicular to the optical axis, and a foundation is laid for achieving a more accurate anti-shake function. The guide part ensures the linear displacement of the bracket, avoids unexpected movement caused by similar crosstalk problems, and also increases the sliding smoothness.

Description

Technical Field

[0001] The present invention relates to the field of optical imaging, and more particularly to an OIS structure and a motor with high advantages. Background Art

[0002] In mobile terminals such as mobile phones, cameras are extremely commonly used components, giving mobile terminals the ability to shoot. Usually, the height direction of the camera is consistent with the thickness direction of the mobile terminal, which means that the height of the camera will directly affect the thickness of the mobile terminal. Therefore, R&D personnel have been committed to studying how to reduce the height of the camera, thereby reducing the thickness of the mobile terminal, especially for cameras with anti-shake functions, which are the focus of attention.

[0003] There are some problems with the existing related technologies. For example, in the patent with announcement number US20200310079A1, the OIS component adopts a double-layer ball bearing structure. Although this structure can guide the OIS component to move perpendicular to the optical axis, it has the disadvantages of high cost and complex structure. More importantly, the double-layer ball bearing OIS guide structure will increase the height of the motor, which is contrary to the goal of reducing the height of the camera.

[0004] In the patent with announcement number CN103869445A, the OIS component is supported by multiple single-layer ball bearings to guide the OIS component to move perpendicular to the optical axis. Although this method reduces the height to a certain extent, it introduces the crosstalk problem, that is, it will introduce rotation in the direction of the optical axis, which will cause control instability and affect the normal performance of the anti-shake function and the user experience. Summary of the invention

[0005] In order to solve the above problems in the prior art, the present invention provides an OIS motor structure with high advantages.

[0006] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0007] 14. The optical system as claimed in claim 13, wherein the plurality of projections on the first guide member are arranged on a line extending along the axis of the optical axis and along the axis of the optical axis. The plurality of projections on the first guide member are arranged on the line extending along the axis of the optical axis and along the axis of the optical axis. The plurality of projections on the first guide member are arranged on the line extending along the axis of the optical axis and along the axis of the optical axis. The plurality of projections on the first guide member are arranged on the line extending along the axis of the optical axis and along the axis of the optical axis.

[0008] Further, the first guide portion has a protruding height in front of the optical axis direction; the first guide portion includes at least two large balls and a small ball disposed between adjacent large balls; the first guide member is provided with a first matching groove that matches the first guide portion; the large ball forms a contact portion with the first slide groove;

[0009] The second guide portion has a protruding height behind along the optical axis direction; the second guide portion includes at least two large balls and small balls arranged between adjacent large balls; the first guide member is provided with a third matching groove that matches the second guide portion; the large ball forms a contact portion with the second slide groove.

[0010] Furthermore, a second matching groove parallel to the first matching groove is provided on one side of the first matching groove; a first auxiliary guide portion is provided in the second matching groove; the first auxiliary guide portion is a ball; the first matching groove is a V-shaped groove;

[0011] A fourth matching groove parallel to the third matching groove is provided on one side of the third matching groove; a second auxiliary guide portion is provided in the fourth matching groove; the second auxiliary guide portion is a ball; and the third matching groove is a V-shaped groove.

[0012] Furthermore, the first guide portion includes a limiting protrusion formed on the first guide member; the limiting protrusion has a limited distance parallel to the first direction;

[0013] The second guide portion includes a limiting protrusion formed on the first guide member; the limiting protrusion has a limited distance parallel to the second direction.

[0014] Furthermore, a first auxiliary guide portion parallel to the first guide portion is provided on one side of the first guide portion; the first auxiliary guide portion is a limiting protrusion integrally formed on the first guide member; the first guide portion is a V-shaped limiting protrusion;

[0015] A second auxiliary guide portion parallel to the second guide portion is provided on one side of the second guide portion; the second auxiliary guide portion is a limiting protrusion integrally formed on the first guide member; and the second guide portion is a V-shaped limiting protrusion.

[0016] A motor comprising

[0017] a shell having a hollow cavity formed therein;

[0018] A first bracket is disposed in the hollow cavity and can move along the optical axis;

[0019] A second bracket is arranged in the first bracket and can move perpendicularly to the optical axis;

[0020] A first guide member as described in any one of claims 1 to 5 is provided between the second bracket and the first bracket.

[0021] Furthermore, the shell includes an outer shell and a base; the bottom opening of the outer shell is fixedly connected to the base to form a hollow cavity inside; a light hole is formed in the middle of the outer shell and the base; a cover plate is provided on the top of the second bracket; an extension plate that cooperates with the first bracket is extended from the edge of the cover plate; a card slot is provided on the extension plate; and a card block that cooperates with the card slot is provided on the first bracket.

[0022] Furthermore, an AF driving assembly for driving the first bracket to move is provided between the first bracket and the housing; the AF driving assembly comprises an AF driving magnet provided on the side of the first bracket and an AF driving coil provided on the inner side of the housing relative to the AF driving magnet;

[0023] An OIS driving assembly for driving the second bracket to move is provided between the second bracket and the shell; the OIS driving assembly includes an OIS driving magnet provided on the second bracket and an OIS driving coil provided on the shell relative to the OIS driving magnet.

[0024] Furthermore, the shell is provided with a first limiting groove cooperating with the AF guide; the outer side of the first bracket is provided with a second limiting groove cooperating with the AF guide; the AF guide is a guide column; the material of the guide column is metal, plastic or ceramic.

[0025] Furthermore, the bracket is the second bracket; the base is the first bracket; a clearance groove is provided on the first bracket; the clearance groove is arranged opposite to the OIS driving magnet; a mounting groove is provided on the side of the first bracket close to the second bracket; a second guide member cooperating with the bottom of the second bracket is provided in the mounting groove; and the second guide member is a ball bearing.

[0026] The beneficial effect of the present invention is that the guide parts in different directions of the first side and the second side cooperate with each other, so that the bracket can move more stably and accurately in a plane perpendicular to the optical axis, laying a foundation for realizing a more accurate anti-shake function. The guide part ensures the linear displacement of the bracket, avoids unexpected movement caused by similar crosstalk problems, and effectively increases the smoothness of sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is an exploded view of the structure of the present invention;

[0029] Figure 2 is a schematic structural diagram of the first guide member of the present invention;

[0030] Figure 3 is an exploded view of another embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of a first guide member in another embodiment of the present invention;

[0032] Figure 5 It is a three-dimensional diagram of a first guide member in another embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 100, housing; 101, light hole; 111, first limiting groove; 110, base; 120, housing; 130, cover plate; 131, extension plate; 132, card slot; 200, first bracket; 210, AF drive assembly; 211, AF drive magnet; 212, AF drive coil; 220, AF guide; 221, second limiting groove; 230, second slide groove; 240, mounting groove; 250, yielding groove; 260, card block; 300, second bracket; 310, OIS drive assembly; 311, OIS drive magnet; 312, OIS drive coil; 320, first slide groove; 400, first guide member; 401, first side; 402, second side; 410, first guide portion; 411, first matching groove; 420, first auxiliary guide portion; 421, second matching groove; 430, second guide portion; 431, third matching groove; 440, second auxiliary guide portion; 441, fourth matching groove; 450, second guide member. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example:

[0039] like Figure 1 As shown, the optical axis direction is parallel to the Y direction, the first direction is parallel to the Z direction, and the second direction is parallel to the X direction; for the convenience of description, the optical axis direction may also be referred to as the X direction, the first direction may also be referred to as the Z direction, and the second direction may also be referred to as the X direction;

[0040] An OIS structure with a height advantage includes a first guide member 400 for guiding a bracket to move in a direction perpendicular to an optical axis; the first guide member 400 includes a first side 401 located above the optical axis direction and a second side 402 located below the optical axis direction; the first side 401 is equipped with at least one first guide portion 410 for guiding the bracket in the first direction; the second side 402 is equipped with at least one second guide portion 430 for guiding the bracket in the second direction; the first direction is perpendicular to the second direction and both are perpendicular to the optical axis direction; the design of the first guide member 400 and the guide portions on both sides improves the accuracy of the guidance. Through the synergistic effect of the guide portions in different directions of the first side 401 and the second side 402, the bracket can move more stably and accurately in a plane perpendicular to the optical axis, laying the foundation for realizing a more accurate anti-shake function. The structural complexity is optimized. Compared with the double-layer ball bearing structure, this design simplifies the structure while ensuring the guiding function, which is conducive to reducing costs and production difficulties. The integrated structure can effectively reduce the height (dimension in the Y direction).

[0041] The bottom of the bracket is provided with a first slide groove 320 that cooperates with the first guide part 410; the contact part of the first guide part 410 and the first slide groove 320 has a tendency to move in the same direction, and has a limited distance along the first direction to limit the linear displacement of the bracket relative to the first guide part 410 in the first direction; prevent the bracket from being offset or unstable in the movement in the first direction, and avoid unexpected movement caused by similar crosstalk problems. Ensure the linear displacement of the bracket in the first direction. The contact part of the first guide part 410 and the first slide groove 320 has a tendency to move in the same direction and has a limited distance along the first direction, which limits the bracket to only be able to move in a straight line in the first direction when cooperating with the first guide part 410, thereby improving the stability and controllability of the movement. Enhance the reliability of the anti-shake function. Accurate linear displacement can keep the lens in a stable position adjustment during the anti-shake process, thereby improving the stability and clarity of the captured image.

[0042] The first guide member 400 has a base at the bottom; the base is provided with a second slide groove 230 that cooperates with the second guide portion 430; the contact portion between the second guide portion 430 and the second slide groove 230 has a tendency to move in the same direction, and has a limited distance along the second direction to limit the linear displacement of the first guide member 400 in the second direction. It is also to ensure the stable movement of the first guide member 400 in the second direction, avoid unnecessary shaking or offset, and solve various problems caused by unstable guidance in the prior art. The movement of the first guide member 400 will further drive the bracket to have a stable moving trajectory in the second direction, realize the precise movement of the bracket in the direction perpendicular to the optical axis; further ensure the stability of the overall structure. Through the cooperation between the second slide groove 230 on the base and the second guide portion 430, the first guide member 400 can also achieve precise linear displacement in the second direction, thereby ensuring that the entire OIS structure can operate stably in a plane perpendicular to the optical axis.

[0043] In one embodiment, the first guide portion 410 has a protruding height in the front along the optical axis direction; this design can increase the contact area and force between the guide portion and the bracket to a certain extent, thereby improving the guiding accuracy and stability of the bracket. During the movement of the bracket, a larger contact area can better disperse the force, reduce local wear, and extend the service life of the components.

[0044] The first guide part 410 includes at least two large balls and a small ball disposed between adjacent large balls; the first guide member 400 is provided with a first matching groove 411 matching with the first guide part 410; the large balls form a contact portion with the first slide groove 320; the first matching groove 411 can accurately position the first guide part 410 to ensure its position accuracy during operation. At the same time, the design of the matching groove also helps to closely combine the first guide part 410 with the first guide member 400 to form a stable whole, which together provide accurate guiding services for the bracket.

[0045] The combination of large and small balls has multiple advantages. The large balls can provide the main support and guidance to ensure that the bracket can move stably under a large load; the small balls are filled in the gaps between the large balls. On the one hand, the spacing between the large balls can be further increased, which helps to increase the limited distance of the second guide portion 430 in the second direction, improving the linearity and stability of the guide. On the other hand, when the large balls move, the small balls can play an auxiliary rolling and buffering role, reducing the direct friction between the large balls, and improving the smoothness and stability of the entire guide system. Furthermore, the small balls are the key to achieving the same-direction movement of the large balls, thereby ensuring smooth rolling. Traditional structures usually use a single-point support structure with a single ball, which will cause excessive local pressure and may cause deformation of the bracket. At the same time, the linearity of the guide is not good, and it is easy to produce rotation in the direction of the optical axis (rotation along the Y axis). In some multi-ball structures, the balls are the same size. When the bracket moves along When moving in one direction, two adjacent balls will interact with each other when they are close to each other, causing the rolling directions to be opposite, which will cause poor rolling. Some balls cannot cooperate with the bracket in the form of rolling friction, resulting in poor rolling and even shaking, affecting the anti-shake effect; in this structure, the structure of two large balls and one small ball is used for explanation. The small ball is clamped in the middle of the two large balls, and the small ball does not directly contact the bracket. The two large balls can rotate in the same direction. Even if the three balls roll closely, the conduction of the small ball therein also promotes the rotation of the two large balls in the same direction, effectively ensuring the smoothness of movement and reducing the occurrence of shaking; the two large balls form a contact portion with the contact position of the first slide groove 320. At this time, the minimum distance of the limited distance is the sum of the diameters of the large ball and the small ball. This limited distance can effectively prevent the bracket from rotating along the optical axis (rotation along the Y axis).

[0046] The second guide part 430 has a raised height in the rear along the optical axis direction; the second guide part 430 includes at least two large balls and small balls arranged between adjacent large balls; the first guide member 400 is provided with a third matching groove 431 that matches with the second guide part 430; the large ball forms a contact portion with the second slide groove 230. The second guide part 430 has a raised height in the rear along the optical axis direction, which matches with the raised height in front of the first guide part 410 to constrain and guide the bracket from the front and rear directions. This front and rear symmetrical raised height design can better balance the force of the bracket in the plane perpendicular to the optical axis, and further improve the stability and straightness of the bracket movement. Like the first guide part 410, the second guide part 430 adopts a combination of at least two large balls and small balls between adjacent large balls, which also has the advantages of improving the uniformity of guidance, increasing contact points, buffering, etc., to ensure that the movement of the first guide member 400 in the second direction is stable and smooth. The first guide member 400 is provided with a third matching groove 431 which matches with the second guide portion 430. The third matching groove 431 has a similar function to the first matching groove 411 and can accurately position the second guide portion 430 and enhance the connection stability between the second guide portion 430 and the first guide member 400, thereby ensuring the guiding accuracy and reliability of the entire OIS structure in the second direction.

[0047] In one embodiment, a second matching groove 421 parallel to the first matching groove 411 is provided on one side of the first matching groove 411; a first auxiliary guide portion 420 is provided in the second matching groove 421; the first auxiliary guide portion 420 is a ball; the first matching groove 411 is a V-shaped groove; this design further enhances the guiding and supporting capabilities of the first guide portion 410. During the movement of the bracket, when the first guide portion 410 rolls in the first matching groove 411, the ball in the second matching groove 421 can provide additional auxiliary guiding from the side to prevent the first guide portion 410 from deflecting or shaking during movement, thereby further improving the stability and accuracy of the bracket moving in the first direction. The first matching groove 411 adopts a V-shaped groove structure, which has unique advantages. The V-shaped groove can better cooperate with the ball, making the rolling of the ball in the groove more stable and smooth. The two side walls of the V-shaped groove can restrain the ball, prevent the ball from getting off the track during movement, and ensure the reliability of the guidance. At the same time, the V-groove structure can make the contact between the ball and the groove wall closer, which is beneficial to the transmission of force and thus improves the accuracy and efficiency of the guidance.

[0048] A fourth matching groove 441 parallel to the third matching groove 431 is provided on one side of the third matching groove 431; a second auxiliary guide part 440 is provided in the fourth matching groove 441; the second auxiliary guide part 440 is a ball; and the third matching groove 431 is a V-shaped groove. A fourth matching groove 441 parallel to the third matching groove 431 is provided on one side of the third matching groove 431, and a ball as the second auxiliary guide part 440 is provided in the fourth matching groove 441, which is similar to the design principle of the first matching groove 411 and the second matching groove 421. When the first guide member 400 moves in the second direction, the ball in the fourth matching groove 441 can provide lateral auxiliary guidance for the second guide part 430, enhance the stability of the second guide part 430 during movement, and ensure that the movement of the first guide member 400 in the second direction is more accurate and reliable. The third matching groove 431 also adopts a V-shaped groove structure, and has the same advantages as the V-shaped groove of the first matching groove 411. It enables the ball of the second guide part 430 to roll stably in the groove, effectively constrains the movement trajectory of the ball, prevents the ball from escaping, ensures the stability and reliability of the guidance in the second direction, and provides a guarantee for the precise movement of the entire OIS structure in the second direction.

[0049] like Figure 3-4 As shown. In one embodiment, the first guide portion 410 includes a limiting protrusion formed on the first guide member 400; the limiting protrusion has a limited distance parallel to the first direction; this design can accurately limit the movement of the bracket in the first direction. When the bracket moves in the first direction, the limiting protrusion can prevent the bracket from exceeding the limited range, avoiding structural damage or unstable movement due to excessive displacement. It ensures that the bracket always moves within the set track in the first direction, greatly improving the stability and reliability of the bracket movement. This method of achieving limitation through a limiting protrusion has a simpler structure than some complex limiting mechanisms. The simple structural design is not only convenient for production and manufacturing, but also can reduce production costs, while reducing possible failure points due to too many parts and components, and improving the durability of the entire OIS structure. The limiting protrusion and the first guide member 400 are usually an integrated structure. The setting of the limiting protrusion can minimize the size in the height direction (Y direction). The size of the first limiting member in the height direction can use the height size of the single-sided ball to achieve the guiding effect of the double-layer ball and better displacement linearity, avoiding rotation in the optical axis direction (rotation along the Y axis); the first guide member 400 can be a wear-resistant self-lubricating slider, and its material is engineering plastic (such as POM, POM+PTFE, PEEK), which is conducive to reducing the overall height. This structural design does not increase too much height while achieving a good guiding function, which meets the research and development goal of reducing the height of the camera and helps to achieve the thinness of the mobile terminal.

[0050] The second guide portion 430 includes a limiting protrusion formed on the first guide member 400; the limiting protrusion has a limited distance parallel to the second direction. The limiting protrusion of the second guide portion 430 cooperates with the limiting protrusion of the first guide portion 410 to constrain the movement of the bracket and the first guide member 400 from two vertical directions. This all-round limiting design enhances the stability of the entire OIS structure, allowing it to maintain a stable working state under various working conditions, reducing performance degradation or failure caused by uncontrolled movement.

[0051] like Figure 4 As shown, in one embodiment, a first auxiliary guide portion 420 parallel to the first guide portion 410 is provided on one side of the first guide portion 410; the first auxiliary guide portion 420 is a limiting protrusion integrally formed on the first guide member 400; the first guide portion 410 is a V-shaped limiting protrusion; this double guide structure greatly enhances the control ability of the bracket moving in the first direction. When the bracket moves, the first guide portion 410 and the first auxiliary guide portion 420 can limit and guide the bracket from different positions at the same time to avoid the bracket from deflecting or shaking, so that the bracket moves more stably and reliably in the first direction. The first guide portion 410 adopts a V-shaped limiting protrusion structure, and the V-shaped design can better cooperate with the bracket. The two side walls of the V-shape can play a more precise restraining role on the bracket, so that the bracket always stays on the correct track during the movement, further improving the accuracy of the guide. At the same time, the V-shaped structure can better disperse the force, reduce the wear caused by excessive local force, and extend the service life of the components.

[0052] A second auxiliary guide part 440 parallel to the second guide part 430 is provided on one side of the second guide part 430; the second auxiliary guide part 440 is a limiting protrusion integrally formed on the first guide member 400; the second guide part 430 is a V-shaped limiting protrusion. This design plays a good auxiliary guiding role in the movement of the first guide member 400 and the bracket in the second direction. When the first guide member 400 drives the bracket to move in the second direction, the second guide part 430 and the second auxiliary guide part 440 work together to ensure the accuracy and stability of the movement, and effectively avoid the adverse effects on the anti-shake function caused by movement deviation.

[0053] like Figure 5 As shown, in one embodiment, the size of the second auxiliary guide portion 440 along the second direction can be appropriately reduced to reduce the contact area of ​​the protrusion to reduce friction.

[0054] like Figure 1As shown, a motor includes a housing 100, in which a hollow cavity is formed; a first bracket 200, which is arranged in the hollow cavity and can move along the optical axis; a second bracket 300, which is arranged in the first bracket 200 and can move perpendicular to the optical axis; and a first guide member 400 as described above is arranged between the second bracket 300 and the first bracket 200. This design realizes the precise control of the movement of the second bracket 300 in different directions. The movement of the first bracket 200 along the optical axis can adjust the parameters such as the focal length of the lens, while the movement of the second bracket 300 perpendicular to the optical axis under the action of the first guide member 400 provides a basis for the anti-shake function. The two work together to enable the motor to meet various shooting requirements and improve the shooting effect. The dual guide structure of the first guide member 400 and the setting of the auxiliary guide part ensure the stability of the second bracket 300 during the movement. Even in a complex use environment or severe hand shaking, the second bracket 300 can remain on the correct movement trajectory, reducing the blur or jitter of the picture caused by shaking, and improving the reliability of the motor in actual use.

[0055] In one embodiment, the housing 100 includes an outer shell 120 and a base 110; the bottom opening of the outer shell 120 is fixedly connected to the base 110 to form a hollow cavity inside; a light hole 101 is formed in the middle of the outer shell 120 and the base 110. The fixed connection between the outer shell 120 and the base 110 forms a stable hollow cavity structure, which provides reliable support and protection for the first bracket 200, the second bracket 300 and other components inside. During the use of the motor, it can effectively resist external collision and extrusion, ensure the normal operation of the internal precision components, and extend the service life of the motor.

[0056] In one embodiment, a cover plate 130 is provided on the top of the second bracket; an extension plate 131 is extended from the edge of the cover plate 130 to cooperate with the first bracket 200; a card slot 132 is provided on the extension plate 131; a card block 260 is provided on the first bracket 200 to cooperate with the card slot 132; the card connection between the cover plate 130 and the first bracket 200 can effectively limit the position of the second bracket 300, which is conducive to the effective contact between the first guide member 400 and the first bracket 200 and the second bracket 300, and ensures that the movable ability of the second bracket 300 will not fail; the cover plate 130 can also limit the moving distance of the second bracket 300; a light-through hole is also provided in the middle of the cover plate 130, and a convex edge / convex edge is extended to cooperate with the light-through hole on the upper surface of the second bracket 300 to achieve the limitation of the second bracket 300.

[0057] In one embodiment, an AF driving assembly 210 for driving the first bracket 200 to move is provided between the first bracket 200 and the housing 100; the AF driving assembly 210 includes an AF driving magnet 211 disposed on the side of the first bracket 200 and an AF driving coil 212 disposed on the inner side of the housing 100 relative to the AF driving magnet 211; through electromagnetic interaction, the first bracket 200 can be accurately driven to move along the optical axis. This precise driving control allows the lens to quickly and accurately adjust the focal length and realize the autofocus function.

[0058] An OIS driving assembly 310 for driving the second bracket 300 to move is provided between the second bracket 300 and the housing 100; the OIS driving assembly 310 includes an OIS driving magnet 311 provided on the second bracket 300 and an OIS driving coil 312 provided on the housing 100 and arranged relative to the OIS driving magnet 311. Through the action of electromagnetic force, the second bracket 300 can be driven to move perpendicularly to the optical axis, thereby effectively offsetting the shaking caused by hand shaking or other external factors.

[0059] In one embodiment, the housing 100 is provided with a first limiting groove 111 that cooperates with the AF guide 220; the outer side of the first bracket 200 is provided with a second limiting groove 221 that cooperates with the AF guide 220; the AF guide 220 is a guide column; the material of the guide column is metal, plastic or ceramic. When the AF drive assembly is working, the first bracket 200 needs to make a linear motion along the optical axis direction to achieve the focusing function. The cooperation of the guide column between the two limiting grooves ensures that the first bracket 200 can only move in the set optical axis direction, avoiding the focus deviation caused by displacement or shaking in other directions, thereby ensuring the accuracy and stability of the autofocus function.

[0060] In one embodiment, the bracket is the second bracket 300; the base is the first bracket 200; a clearance groove 250 is provided on the first bracket 200; the clearance groove 250 is arranged opposite to the OIS driving magnet; a mounting groove 240 is provided on the side of the first bracket 200 close to the second bracket 300; a second guide member 450 is provided in the mounting groove 240 to cooperate with the bottom of the second bracket 300; and the second guide member 450 is a ball. This design enhances the guiding stability of the movement of the second bracket 300. When the second bracket 300 moves, the ball rolls in the mounting groove 240, which can provide stable support and guidance for the second bracket 300 from the bottom, making the movement of the second bracket 300 more stable and reducing shaking and deviation. The ball, as a guide member 220, has a lower friction coefficient. During the movement of the second bracket 300, the rolling friction between the ball and the bottom of the second bracket 300 and the mounting groove 240 is much smaller than the sliding friction, which greatly reduces the friction resistance during the movement.

[0061] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An OIS structure with a height advantage, characterized in that: The invention comprises a first guide member (400) for guiding a bracket to move in a direction perpendicular to the optical axis; the first guide member (400) comprises a first side (401) located above the optical axis direction, and a second side (402) located below the optical axis direction; the first side (401) is matched with at least one first guide portion (410) for guiding the bracket in a first direction; the second side (402) is matched with at least one second guide portion (430) for guiding the bracket in a second direction; the first direction is perpendicular to the second direction, and both are perpendicular to the optical axis direction; a first slide groove (430) matched with the first guide portion (410) is provided at the bottom of the bracket 320); the contact portion between the first guide portion (410) and the first slide groove (320) has a tendency to move in the same direction, and has a limited distance along the first direction to limit the linear displacement of the bracket relative to the first guide portion (410) in the first direction; a base is provided at the bottom of the first guide member (400); a second slide groove (230) matched with the second guide portion (430) is provided on the base; the contact portion between the second guide portion (430) and the second slide groove (230) has a tendency to move in the same direction, and has a limited distance along the second direction to limit the linear displacement of the first guide member (400) in the second direction.

2. The OIS structure with a height advantage according to claim 1, characterized in that: The first guide portion (410) has a protruding height in front of the optical axis direction; the first guide portion (410) includes at least two large balls and a small ball disposed between adjacent large balls; the first guide member (400) is provided with a first matching groove (411) matching with the first guide portion (410); the large ball forms a contact portion with the first slide groove (320); The second guide portion (430) has a protruding height at the rear along the optical axis direction; the second guide portion (430) includes at least two large balls and a small ball disposed between adjacent large balls; the first guide member (400) is provided with a third matching groove (431) matching with the second guide portion (430); the large ball forms a contact portion with the second slide groove (230).

3. The OIS structure with a height advantage according to claim 2, characterized in that: A second matching groove (421) parallel to the first matching groove (411) is provided on one side of the first matching groove (411); a first auxiliary guide portion (420) is provided in the second matching groove (421); the first auxiliary guide portion (420) is a ball bearing; the first matching groove (411) is a V-shaped groove; A fourth matching groove (441) parallel to the third matching groove (431) is provided on one side of the third matching groove (431); a second auxiliary guide portion (440) is provided in the fourth matching groove (441); the second auxiliary guide portion (440) is a ball bearing; and the third matching groove (431) is a V-shaped groove.

4. The OIS structure with a height advantage according to claim 1, characterized in that: The first guide portion (410) comprises a limiting protrusion formed on the first guide member (400); the limiting protrusion has a limited distance parallel to the first direction; The second guide portion (430) comprises a limiting protrusion formed on the first guide member (400); the limiting protrusion has a limited distance parallel to the second direction.

5. The OIS structure with a height advantage according to claim 4, characterized in that: A first auxiliary guide portion (420) parallel to the first guide portion (410) is provided on one side of the first guide portion (410); the first auxiliary guide portion (420) is a limiting protrusion integrally formed on the first guide member (400); the first guide portion (410) is a V-shaped limiting protrusion; A second auxiliary guide portion (440) parallel to the second guide portion (430) is provided on one side of the second guide portion (430); the second auxiliary guide portion (440) is a limiting protrusion integrally formed on the first guide member (400); and the second guide portion (430) is a V-shaped limiting protrusion.

6. A motor, characterized in that: include A housing (100) having a hollow cavity formed therein; A first bracket (200) is arranged in the hollow cavity and can move along the optical axis; A second bracket (300) is arranged in the first bracket (200) and can move perpendicularly to the optical axis; A first guide member (400) as claimed in any one of claims 1 to 5 is provided between the second bracket (300) and the first bracket (200).

7. A motor according to claim 6, characterized in that: The housing (100) comprises an outer shell (120) and a base (110); the bottom opening of the outer shell (120) is fixedly connected to the base (110) to form a hollow cavity inside; a light hole (101) is formed in the middle of the outer shell (120) and the base (110); a cover plate (130) is provided on the top of the second bracket; an extension plate (131) that cooperates with the first bracket (200) is extended from the edge of the cover plate (130); a card slot (132) is provided on the extension plate (131); and a card block (260) that cooperates with the card slot (132) is provided on the first bracket (200).

8. A motor according to claim 6, characterized in that: An AF driving component (210) for driving the first bracket (200) to move is provided between the first bracket (200) and the housing (100); the AF driving component (210) comprises an AF driving magnet (211) arranged on the side of the first bracket (200) and an AF driving coil (212) arranged on the inner side of the housing (100) relative to the AF driving magnet (211); An OIS driving component (310) for driving the second bracket (300) to move is provided between the second bracket (300) and the housing (100); the OIS driving component (310) comprises an OIS driving magnet (311) arranged on the second bracket (300) and an OIS driving coil (312) located on the housing (100) and arranged relative to the OIS driving magnet (311).

9. A motor according to claim 6, characterized in that: The housing (100) is provided with a first limiting groove (111) that cooperates with the AF guide (220); the outer side of the first bracket (200) is provided with a second limiting groove (221) that cooperates with the AF guide (220); the AF guide (220) is a guide column; the material of the guide column is metal, plastic or ceramic.

10. A motor according to claim 8, characterized in that: The bracket is a second bracket (300); the base is a first bracket (200); a clearance groove (250) is provided on the first bracket (200); the clearance groove (250) is arranged opposite to the OIS driving magnet; a mounting groove (240) is provided on a side of the first bracket (200) close to the second bracket (300); a second guide member (450) is provided in the mounting groove (240) and is matched with the bottom of the second bracket (300); and the second guide member (450) is a ball bearing.

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