High-advantage OIS structure and motor

Abstract

The utility model relates to an OIS structure with a high advantage and a motor. The OIS structure comprises a first guide member used for guiding a support to move along a 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] This utility model relates to the field of optical imaging, and in particular to an OIS structure and motor with significant advantages. Background Technology

[0002] In mobile devices such as smartphones, the camera is an extremely common component, enabling the device to take pictures. Typically, the height of the camera aligns with the thickness of the mobile device, meaning the camera's height directly affects the device's thickness. Therefore, researchers have consistently focused on reducing the camera's height to decrease the thickness of mobile devices, especially for cameras with image stabilization capabilities.

[0003] Current related technologies have certain problems. For example, in the patent with publication number US20200310079A1, the OIS component uses a double-layer ball bearing structure. Although this structure can guide the OIS component to move perpendicular to the optical axis, it suffers from high cost and complex structure. More importantly, the double-layer ball bearing OIS guiding structure increases the motor height, which contradicts the goal of reducing the camera height.

[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 crosstalk problems, that is, it introduces rotation in the direction of the optical axis, which in turn causes instability in control and affects the normal functioning of the image stabilization function and the user experience. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this invention provides an OIS motor structure with significant advantages.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An OIS structure with significant advantages includes a first guide member for guiding a support to move in a direction perpendicular to the optical axis; the first guide member includes a first side located above the optical axis and a second side located below the optical axis; the first side is fitted with at least one first guide portion guiding the support in a first direction; the second side is fitted with at least one second guide portion guiding the support in a second direction; the first direction is perpendicular to the second direction and both are perpendicular to the optical axis; the bottom of the support is provided with a first groove that mates with the first guide portion; the contact portion between the first guide portion and the first groove has a tendency to move in the same direction and has a defined distance along the first direction to limit the linear displacement of the support relative to the first guide portion in the first direction; the bottom of the first guide member is provided with a base; the base is provided with a second groove that mates with the second guide portion; the contact portion between the second guide portion and the second groove has a tendency to move in the same direction and has a defined distance along the second direction to limit the linear displacement of the first guide member in the second direction.

[0008] Furthermore, the first guide portion has a protrusion height along the optical axis; the first guide portion includes at least two large balls and small balls disposed between adjacent large balls; the first guide member is provided with a first mating groove that mates with the first guide portion; the large balls and the first groove form a contact portion;

[0009] The second guide portion has a raised height along the optical axis; the second guide portion includes at least two large balls and small balls disposed between adjacent large balls; the first guide member is provided with a third mating groove that mates with the second guide portion; the large balls and the second groove form a contact portion.

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

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

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

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

[0016] A motor, including

[0017] The shell has a hollow cavity formed inside it;

[0018] The first support is set inside the hollow cavity and can move along the optical axis.

[0019] The second support is set inside the first support and can move perpendicular to the optical axis.

[0020] The second bracket and the first bracket are provided with a first guide member as described in any one of claims 1-5.

[0021] Furthermore, the housing 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-transmitting 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 formed on the edge of the cover plate; a slot is provided on the extension plate; and a locking block that cooperates with the slot is provided on the first bracket.

[0022] Furthermore, an AF drive assembly for driving the first support to move is provided between the first support and the housing; the AF drive assembly includes an AF drive magnet disposed on the side of the first support and an AF drive coil disposed on the inner side of the housing relative to the AF drive magnet.

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

[0024] Furthermore, the housing is provided with a first limiting groove that cooperates with the AF guide; the outer side of the first bracket is provided with a second limiting groove that cooperates with the AF guide; the AF guide is a guide post; the guide post is made of metal, plastic or ceramic.

[0025] Furthermore, the bracket is a second bracket; the base is a first bracket; the first bracket is provided with a clearance groove; the clearance groove is disposed opposite to the OIS driving magnet; the first bracket is provided with a mounting groove on the side near the second bracket; the mounting groove is provided with a second guide member that mates with the bottom of the second bracket; the second guide member is a ball bearing.

[0026] The beneficial effects of this invention are as follows: through the coordinated action of the guide portions on the first and second sides in different directions, the bracket can move more stably and accurately in a plane perpendicular to the optical axis, laying the foundation for achieving more precise image stabilization. The guide portions ensure the linear displacement of the bracket, avoiding unexpected movements caused by crosstalk problems, and also effectively increasing the smoothness of sliding. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is an exploded view of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the first guide component of this utility model;

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

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

[0032] Figure 5 This is a perspective view of the first guide member in another embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Housing; 101. Light-transmitting hole; 111. First limiting groove; 110. Base; 120. Outer shell; 130. Cover plate; 131. Extension plate; 132. 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 sliding groove; 240. Mounting groove; 250. Clearance groove; 260. Locking block; 300. Second bracket; 310, OIS drive assembly; 311, OIS drive magnet; 312, OIS drive coil; 320, first slide groove; 400, first guide; 401, first side; 402, second side; 410, first guide portion; 411, first mating groove; 420, first auxiliary guide portion; 421, second mating groove; 430, second guide portion; 431, third mating groove; 440, second auxiliary guide portion; 441, fourth mating groove; 450, second guide. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Example:

[0039] like Figure 1 As shown, the optical axis 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 ease of description, the optical axis can also be called the X direction, the first direction can also be called the Z direction, and the second direction can also be called the X direction.

[0040] An OIS structure with significant advantages includes a first guide member 400 for guiding the movement of a support bracket in a direction perpendicular to the optical axis. The first guide member 400 includes a first side 401 located above the optical axis and a second side 402 located below the optical axis. The first side 401 is fitted with at least one first guide portion 410 guiding the support bracket in a first direction; the second side 402 is fitted with at least one second guide portion 430 guiding the support bracket in a second direction. The first direction is perpendicular to the second direction and both are perpendicular to the optical axis. The design of the first guide member 400 and the two guide portions improves the accuracy of guidance. Through the coordinated action of the guide portions in different directions of the first side 401 and the second side 402, the support bracket can move more stably and accurately in a plane perpendicular to the optical axis, laying the foundation for more precise image stabilization. The structural complexity is optimized. Compared to a double-layer ball bearing architecture, this design simplifies the structure while ensuring the guiding function, which helps reduce costs and manufacturing difficulty. The integrated structure effectively reduces the height (dimension in the Y direction).

[0041] The bottom of the bracket is provided with a first groove 320 that mates with the first guide portion 410. The contact portion between the first guide portion 410 and the first groove 320 tends 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. This prevents the bracket from deviating or becoming unstable in the first direction, avoiding unexpected movements caused by crosstalk problems. It ensures the linear displacement of the bracket in the first direction. The contact portion between the first guide portion 410 and the first groove 320 tends to move in the same direction and has a limited distance along the first direction, which restricts the bracket to linear displacement only in the first direction when it mates with the first guide portion 410, improving the stability and controllability of the movement. It enhances the reliability of the image stabilization function. Precise linear displacement allows the lens to maintain stable position adjustment during image stabilization, thereby improving the stability and sharpness of the captured image.

[0042] The first guide member 400 has a base at its bottom; the base has a second groove 230 that mates with the second guide part 430; the contact portion of the second guide part 430 and the second groove 230 tends 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. This is also to ensure the stable movement of the first guide member 400 in the second direction, avoiding unnecessary shaking or deviation, and solving various problems caused by unstable guidance in the prior art. The movement of the first guide member 400 further drives the bracket to have a stable moving trajectory in the second direction, realizing the precise movement of the bracket along the direction perpendicular to the optical axis; further ensuring the stability of the overall structure. Through the cooperation of the second groove 230 on the base and the second guide part 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 the plane perpendicular to the optical axis.

[0043] In one embodiment, the first guide portion 410 has a forward protrusion along the optical axis; 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 distribute the force, reduce local wear, and extend the service life of the component.

[0044] The first guide portion 410 includes at least two large ball bearings and small ball bearings disposed between adjacent large ball bearings; the first guide member 400 is provided with a first mating groove 411 that mates with the first guide portion 410; the large ball bearings and the first sliding groove 320 form a contact portion; the first mating groove 411 can accurately position the first guide portion 410, ensuring its positional accuracy during operation. Simultaneously, the design of the mating groove also helps to tightly integrate the first guide portion 410 and the first guide member 400, forming a stable whole, jointly providing precise guidance for the bracket.

[0045] The combination of large and small ball bearings offers multiple advantages. Large ball bearings provide primary support and guidance, ensuring stable movement of the support under heavy loads. Small ball bearings fill the gaps between the large ball bearings, further increasing the spacing between them. This helps increase the defined distance of the second guide section 430 in the second direction, improving the straightness and stability of the guide. Furthermore, during the movement of the large ball bearings, the small ball bearings assist in rolling and cushioning, reducing direct friction between them and improving the smoothness and stability of the entire guide system. Moreover, the small ball bearings are crucial for achieving the same direction of movement of the large ball bearings, ensuring smooth rolling. Traditional structures typically use a single-ball, single-point support structure, which can cause excessive local pressure, potentially leading to support deformation. It also results in poor straightness of the guide and is prone to rotation along the optical axis (rotation along the Y-axis). In contrast, in some multi-ball bearing structures, the ball bearings are of the same size, allowing the support to rotate along the optical axis. When moving in one direction, adjacent balls interact when they come close together, causing them to roll in opposite directions, resulting in uneven rolling. Some balls cannot engage with the support through rolling friction, leading to uneven rolling and even vibration, thus affecting the anti-vibration effect. In this structure, two large balls and one small ball are used as an example. The small ball is sandwiched between the two large balls and does not directly contact the support. The two large balls can rotate in the same direction. Even when the three balls are rolling close together, the small ball facilitates the transmission of motion and promotes the same-direction rotation of the two large balls, effectively ensuring smooth movement and reducing vibration. The contact points between the two large balls and the first groove 320 form a contact area. The minimum distance between them is the sum of the diameters of the large and small balls. This distance effectively prevents the support from rotating along the optical axis (rotation along the Y-axis).

[0046] The second guide portion 430 has a rearward protrusion along the optical axis; the second guide portion 430 includes at least two large balls and small balls disposed between adjacent large balls; the first guide member 400 is provided with a third mating groove 431 that mates with the second guide portion 430; the large balls and the second sliding groove 230 form a contact portion. The second guide portion 430 has a rearward protrusion along the optical axis, which cooperates with the front protrusion of the first guide portion 410 to constrain and guide the bracket from both front and rear directions. This symmetrical protrusion design can better balance the force on the bracket in the plane perpendicular to the optical axis, further improving the stability and straightness of the bracket's movement. Like the first guide portion 410, the second guide portion 430 adopts a combination of at least two large balls and small balls between adjacent large balls, which also has the advantages of improving guidance uniformity, increasing contact points, and buffering, ensuring that the first guide member 400 moves stably and smoothly in the second direction. The first guide member 400 is provided with a third mating groove 431 that cooperates with the second guide part 430. Its function is similar to that of the first mating groove 411, which can accurately position the second guide part 430 and enhance the connection stability between the second guide part 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 mating groove 421 parallel to the first mating groove 411 is provided on one side; a first auxiliary guide portion 420 is provided in the second mating groove 421; the first auxiliary guide portion 420 is a ball bearing; the first mating groove 411 is a V-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 mating groove 411, the ball bearing in the second mating groove 421 can provide additional auxiliary guiding from the side, preventing the first guide portion 410 from deviating or wobbling during movement, thereby further improving the stability and accuracy of the bracket's movement in the first direction. The first mating groove 411 adopts a V-groove structure, which has unique advantages. The V-groove can better cooperate with the ball bearing, making the rolling of the ball bearing in the groove more stable and smooth. The two side walls of the V-groove can constrain the ball bearing, preventing the ball bearing from leaving the track during movement and ensuring the reliability of the guidance. Meanwhile, the V-groove structure allows for a tighter contact between the balls and the groove wall, which is beneficial for force transmission, thereby improving the accuracy and efficiency of guidance.

[0048] A fourth mating groove 441 parallel to the third mating groove 431 is provided on one side; a second auxiliary guide part 440 is provided in the fourth mating groove 441; the second auxiliary guide part 440 is a ball; the third mating groove 431 is a V-groove. The fourth mating groove 441, parallel to the third mating groove 431, and containing the ball as the second auxiliary guide part 440, is similar in design principle to the first mating groove 411 and the second mating groove 421. When the first guide member 400 moves in the second direction, the ball in the fourth mating groove 441 can provide lateral auxiliary guidance for the second guide part 430, enhancing the stability of the second guide part 430 during movement and ensuring more accurate and reliable movement of the first guide member 400 in the second direction. The third mating groove 431 also adopts a V-groove structure, possessing the same advantages as the V-groove of the first mating groove 411. It enables the balls of the second guide section 430 to roll stably in the groove, effectively constrains the movement trajectory of the balls, prevents the balls from falling off, and ensures the stability and reliability of the guidance in the second direction, thus providing 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 precisely 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 movement instability caused by 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's movement. This method of limiting through a limiting protrusion is simpler in structure compared to some complex limiting mechanisms. The simple structural design not only facilitates manufacturing but also reduces production costs, while reducing potential failure points due to too many parts, thus improving the durability of the entire OIS structure. The limiting protrusion and the first guide member 400 are typically an integral structure. The limiting protrusion minimizes the dimension in the height direction (Y direction). The dimension of the first limiting member in the height direction can achieve the guiding effect of double-layer ball bearings and better linear displacement by using the height of a single-sided ball bearing, 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 made of engineering plastics (such as POM, POM+PTFE, PEEK), which helps reduce the overall height. This structural design achieves good guiding function without adding excessive height, meeting the R&D goal of reducing camera height and contributing to the thinner and lighter design of mobile terminals.

[0050] The second guide portion 430 includes a limiting protrusion formed on the first guide member 400; the limiting protrusion has a defined 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 perpendicular directions. This all-round limiting design enhances the stability of the entire OIS structure, enabling it to maintain a stable working state under various operating conditions and 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 dual guide structure greatly enhances the control capability of the bracket's movement in the first direction. When the bracket moves, the first guide portion 410 and the first auxiliary guide portion 420 can simultaneously limit and guide the bracket from different positions, preventing the bracket from deviating or swaying, making the bracket's movement in the first direction more stable and reliable. 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 provide more precise constraint on the bracket, ensuring that the bracket always stays on the correct track during movement, further improving the guiding accuracy. At the same time, the V-shaped structure can better distribute the force, reduce wear caused by excessive local force, and extend the service life of the component.

[0052] 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; the second guide portion 430 is a V-shaped limiting protrusion. This design provides good auxiliary guidance for 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 portion 430 and the second auxiliary guide portion 440 work together to ensure the accuracy and stability of the movement, effectively avoiding adverse effects on the anti-shake function due to movement deviation.

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

[0054] like Figure 1As shown, a motor includes a housing 100 with a hollow cavity formed therein; a first support 200, disposed within the hollow cavity and movable along the optical axis; and a second support 300, disposed within the first support 200 and movable perpendicular to the optical axis. A first guide 400, as described above, is provided between the second support 300 and the first support 200. This design enables precise control of the movement of the second support 300 in different directions. The movement of the first support 200 along the optical axis can adjust parameters such as the lens focal length, while the movement of the second support 300 perpendicular to the optical axis under the action of the first guide 400 provides the basis for image stabilization. The two work together, allowing the motor to meet various shooting needs and improve shooting results. The dual guide structure of the first guide 400 and the setting of the auxiliary guide ensure the stability of the second support 300 during movement. Even in complex usage environments or under severe hand shaking, the second support 300 can maintain the correct movement trajectory, reducing image blur or shaking 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-transmitting 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, providing reliable support and protection for internal components such as the first support 200 and the second support 300. During the use of the motor, it can effectively resist external collisions and compressions, ensuring the normal operation of internal precision components and extending the service life of the motor.

[0056] In one embodiment, the second bracket has a cover plate 130 at its top; the cover plate 130 extends to form an extension plate 131 that cooperates with the first bracket 200; the extension plate 131 has a slot 132; the first bracket 200 has a locking block 260 that cooperates with the slot 132; by engaging the cover plate 130 with the first bracket 200, the position of the second bracket 300 can be effectively limited, which helps the first guide member 400 to make effective contact with the first bracket 200 and the second bracket 300, ensuring that the mobility of the second bracket 300 will not fail; the cover plate 130 can also limit the movement distance of the second bracket 300; the middle of the cover plate 130 also has a light-transmitting hole, and the upper surface of the second bracket 300 extends to form a protruding edge / protruding side that cooperates with the light-transmitting hole, thereby limiting the position of the second bracket 300.

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

[0058] An OIS drive assembly 310 for driving the movement of the second support 300 is provided between the second support 300 and the housing 100. The OIS drive assembly 310 includes an OIS drive magnet 311 disposed on the second support 300 and an OIS drive coil 312 disposed on the housing 100 opposite to the OIS drive magnet 311. Through the action of electromagnetic force, the second support 300 can be driven to move perpendicular to the optical axis, thereby effectively counteracting the shaking caused by hand tremors 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 post; the guide post is made of metal, plastic, or ceramic. When the AF drive assembly is working, the first bracket 200 needs to move linearly along the optical axis to achieve the focusing function. The cooperation between the guide post and the two limiting grooves ensures that the first bracket 200 can only move in the set optical axis direction, avoiding focusing 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 a second bracket 300; the base is a first bracket 200; the first bracket 200 is provided with a clearance groove 250; the clearance groove 250 is disposed opposite to the OIS driving magnet; the first bracket 200 is provided with a mounting groove 240 on the side near the second bracket 300; a second guide 450 that mates with the bottom of the second bracket 300 is provided in the mounting groove 240; the second guide 450 is a ball bearing. This design enhances the guiding stability of the movement of the second bracket 300. When the second bracket 300 moves, the ball bearing rolls in the mounting groove 240, providing stable support and guidance for the second bracket 300 from the bottom, making the movement of the second bracket 300 smoother and reducing swaying and deviation. The ball bearing, as the guide 220, has a low coefficient of friction. During the movement of the second bracket 300, the rolling friction between the ball bearing and the bottom of the second bracket 300 and the mounting groove 240 is much less than the sliding friction, greatly reducing the frictional resistance during movement.

[0061] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A highly advantageous OIS structure, characterized in that: The system includes a first guide member (400) for guiding the support to move in a direction perpendicular to the optical axis; the first guide member (400) includes a first side (401) located above the optical axis and a second side (402) located below the optical axis; the first side (401) is fitted with at least one first guide portion (410) guiding the support in the first direction; the second side (402) is fitted with at least one second guide portion (430) guiding the support in the second direction; the first direction is perpendicular to the second direction and both are perpendicular to the optical axis; the bottom of the support is provided with a first groove that mates with the first guide portion (410). 320); the contact portion of 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; the bottom of the first guide member (400) is provided with a base; the base is provided with a second slide groove (230) that cooperates with the second guide portion (430); the contact portion of 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 significant advantages according to claim 1, characterized in that: The first guide portion (410) has a forward protrusion along the optical axis; the first guide portion (410) includes at least two large balls and small balls disposed between adjacent large balls; the first guide member (400) is provided with a first mating groove (411) that mates with the first guide portion (410); the large balls and the first sliding groove (320) form a contact portion; The second guide portion (430) has a raised height in the direction of the optical axis; the second guide portion (430) includes at least two large balls and small balls disposed between adjacent large balls; the first guide member (400) is provided with a third mating groove (431) that mates with the second guide portion (430); the large balls and the second sliding groove (230) form a contact portion.

3. The OIS structure with significant advantages according to claim 2, characterized in that: A second mating groove (421) parallel to the first mating groove (411) is provided on one side; a first auxiliary guide part (420) is provided in the second mating groove (421); the first auxiliary guide part (420) is a ball; the first mating groove (411) is a V-groove; The third mating groove (431) has a fourth mating groove (441) parallel to the third mating groove (431) on one side; the fourth mating groove (441) has a second auxiliary guide part (440) inside; the second auxiliary guide part (440) is a ball; the third mating groove (431) is a V-groove.

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

5. The OIS structure with significant advantages 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 (440) is provided on one side of the second guide (430) parallel to the second guide (430); the second auxiliary guide (440) is a limiting protrusion integrally formed on the first guide (400); the second guide (430) is a V-shaped limiting protrusion.

6. A motor, characterized in that: include The shell (100) has a hollow cavity formed therein; The first support (200) is set inside the hollow cavity and can move along the optical axis. The second support (300) is set inside the first support (200) and can move perpendicular to the optical axis. A first guide (400) as described in any one of claims 1-5 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) 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-transmitting 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 slot (132) is provided on the extension plate (131); a locking block (260) that cooperates with the slot (132) is provided on the first bracket (200).

8. A motor according to claim 6, characterized in that: An AF drive assembly (210) for driving the first support (200) to move is provided between the first support (200) and the housing (100); the AF drive assembly (210) includes an AF drive magnet (211) disposed on the side of the first support (200) and an AF drive coil (212) disposed on the inner side of the housing (100) opposite to the AF drive magnet (211); An OIS drive assembly (310) for driving the second support (300) to move is provided between the second support (300) and the housing (100); the OIS drive assembly (310) includes an OIS drive magnet (311) disposed on the second support (300) and an OIS drive coil (312) disposed on the housing (100) opposite to the OIS drive 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 post; the guide post is made of 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); the first bracket (200) is provided with a relief groove (250); the relief groove (250) is arranged opposite to the OIS driving magnet; the first bracket (200) is provided with a mounting groove (240) on the side near the second bracket (300); the mounting groove (240) is provided with a second guide (450) that cooperates with the bottom of the second bracket (300); the second guide (450) is a ball bearing.

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