Motor, camera module and electronic equipment

Abstract

The embodiment of the invention relates to the field of motors, and provides a motor, a camera module and electronic equipment. The motor comprises a lens carrier, a frame, a magnetic attraction mechanism and two sliding rail mechanisms, and the two sliding rail mechanisms are diagonally arranged between the frame and the lens carrier on a plane perpendicular to the optical axis direction of the lens and used for providing a sliding supporting face for movement of the lens carrier in the optical axis direction so as to reduce friction force. The magnetic attraction force generated by the magnetic attraction mechanism is used for making the lens carrier abut against the sliding rail mechanism. The two slide rail mechanisms are arranged diagonally and are uniform in structure distribution, so that the stress of the lens carrier is uniform, the stability of the structure is facilitated, the requirement of the motor for magnetic attraction force is reduced, the requirement of automatic focusing for driving force is reduced, the power consumption and the cost are reduced, the miniaturization design of the motor is facilitated, and the service life of the motor is prolonged. And the design difficulty is integrally simplified.

Description

Technical Field

[0001] The present application relates to the field of motors, and more specifically, to a motor, a camera module and an electronic device. Background Art

[0002] The current camera module is equipped with a motor, which generally has an autofocus function. In the autofocus function, the driving force provided by the motor drives the lens in the camera module to move along the optical axis direction of the lens to achieve the focus function.

[0003] Most current motors use voice coil motors (VCM) to achieve the autofocus function. VCM motors are divided into ball motors and spring-loaded wire motors. For ball motors, a ball is set between the lens carrier of the motor and the frame set outside the lens carrier to achieve the movement of the lens along the optical axis to reduce the resistance during the movement. In addition, a magnetic attraction structure is also set on the same side as the ball. The magnetic attraction force generated by the magnetic attraction structure can make the lens carrier contact the ball as much as possible, so as to maintain the stability of the structure as much as possible and maximize the contact between the ball and the lens carrier to reduce resistance.

[0004] After the motor and the lens are matched, the weight of the mover formed by the lens carrier and the lens is relatively large. The above structure requires a larger magnetic attraction force. The larger magnetic attraction force leads to an increase in the friction force during the movement of the mover. The increase in friction force also leads to an increase in the driving force, which increases power consumption and cost, and is not conducive to the miniaturization design of the motor, which increases the design difficulty overall. Summary of the invention

[0005] The embodiments of the present application provide a motor, a camera module and an electronic device that can reduce magnetic attraction to reduce design difficulty.

[0006] In a first aspect, a motor is provided, comprising: a housing, a lens carrier accommodated in the housing, a frame, a magnetic attraction mechanism and two slide rail mechanisms, wherein the lens carrier is used to mount a lens, wherein the two slide rail mechanisms are diagonally arranged between the frame and the lens carrier in a first plane perpendicular to the z direction, and are used to provide a sliding support surface for the movement of the lens carrier along the z direction parallel to the optical axis direction; a part of the magnetic attraction mechanism is arranged on the lens carrier, and the other part is arranged on the frame, and the generated magnetic attraction force is used to abut the lens carrier against the slide rail mechanism.

[0007] In the above embodiment, the motor includes two slide rail mechanisms arranged diagonally, so that the lens carrier interacts with the slide rail mechanism at the diagonal position, so that the force on the lens carrier becomes uniform as a whole, which is beneficial to the stability of the structure. Compared with the ball-bearing motor with a ball bearing arranged on one side in the prior art, the motor with better stability in the present application can avoid the phenomenon that the motor may flip to a large extent in any state, so the required magnetic attraction force will become smaller, that is, a smaller magnetic attraction force can be used to make the lens carrier better contact with the slide rail mechanism, so that the lens carrier can better abut against the slide rail mechanism, thereby reducing the driving force required for autofocus, reducing power consumption and cost, and increasing the focusing speed, which is beneficial to the miniaturization design of the motor and effectively simplifies the design difficulty as a whole.

[0008] Optionally, the slide rail mechanism comprises a guide post.

[0009] In the above embodiment, since the guide column and the lens carrier are in surface contact, the contact area with the lens carrier is increased, and it can withstand a large extrusion force, avoid forming a pit on the lens carrier, and facilitate the movement of the lens carrier and the lens in the z direction, thereby improving the focusing speed, which is very suitable for scenes with heavy lenses. In addition, the columnar structure formed by the guide column extending along the z direction is conducive to a good guiding effect on the movement of the lens carrier in the z direction, and is not prone to tilting, which can further improve the stability of the structure.

[0010] Optionally, two guide grooves are formed between the lens carrier and the frame, the two guide grooves correspond to the two slide rail mechanisms, one guide groove accommodates the corresponding slide rail mechanism, and the guide groove includes a first opening groove arranged on the lens carrier and a second opening groove arranged on the frame.

[0011] For example, the two guide grooves include a first guide groove and a second guide groove, the two slide rail mechanisms include a first slide rail mechanism and a second slide rail mechanism, the first guide groove accommodates the corresponding first slide rail mechanism, and the second guide groove accommodates the corresponding second slide rail mechanism.

[0012] Optionally, the magnetic attraction mechanism includes two magnetic attraction components, which are respectively located on both sides of the lens carrier or the frame, and the two magnetic attraction components are respectively adapted to the two guide grooves, and the direction of the magnetic attraction force generated by the magnetic attraction components is the same as the opening direction of the first opening groove of the adapted guide groove; wherein, one magnetic attraction component includes a first magnet and a first magnetic conductive sheet arranged corresponding to the first magnet, and the other magnetic attraction component includes a second magnet and a second magnetic conductive sheet arranged corresponding to the second magnet, one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier, and the other is arranged on the frame, and one of the second magnet and the second magnetic conductive sheet is arranged on the lens carrier, and the other is arranged on the frame.

[0013] For example, the two magnetic components include a first magnetic component and a second magnetic component. The first magnetic component is adapted to the first guide groove, and the second magnetic component is adapted to the second guide groove. The first magnetic component includes a first magnet and a first magnetic conductive sheet, and the second magnetic component includes a second magnet and a second magnetic conductive sheet.

[0014] In the above embodiment, the two magnetic suction components located on both sides of the lens carrier or frame respectively generate magnetic suction forces in different directions, and the direction of the magnetic suction force generated by each magnetic suction component is the same as the opening direction of the first opening groove of the adapted guide groove. Therefore, under the action of the two magnetic suction forces, the first opening groove of the lens carrier can be in close contact with the sliding rail mechanism to abut the lens carrier against the sliding rail mechanism.

[0015] Optionally, the two magnetic suction components are respectively located on opposite sides of the lens carrier or frame, at least one of the first magnet and the first magnetic conductive sheet is close to one of the slide rail mechanisms, and at least one of the second magnet and the second magnetic conductive sheet is close to the other slide rail mechanism.

[0016] In the above embodiment, at least one of the first magnet and the first magnetic conductive sheet is close to one slide rail mechanism and at least one of the second magnet and the second magnetic conductive sheet is close to another slide rail mechanism, so that the two magnetic suction components form a diagonal magnetic suction force, which increases the force arm of the magnetic suction force to achieve the purpose of reducing the magnetic suction force. Moreover, the diagonal magnetic suction force forms a rotating magnetic suction state, and the magnetic suction force of the two magnetic suction components can form a torque opposite to the torque of gravity, which is used to balance the torque of gravity and well maintain the stability of the structure. In addition, the diagonal magnetic suction force is close to the slide rail mechanism and can act well on the lens carrier, so that the lens carrier is well abutted against the slide rail mechanism.

[0017] Optionally, the two magnetic suction components are respectively located on two adjacent sides of the lens carrier or frame.

[0018] In the above embodiment, since the two magnetic suction components are respectively located on the two adjacent sides of the lens carrier or frame, the combined force of the magnetic suction forces in different directions is formed into an oblique magnetic suction force, and the magnetic suction force of each magnetic suction component cooperates with the matching guide groove so that the first opening groove of the guide groove is in close contact with the slide rail assembly, so that the first opening groove of the lens carrier can be in close contact with the slide rail assembly on both sides of the lens carrier, and the overall force is relatively uniform and reliable, so that the lens carrier can be better abutted against the slide rail assembly. In addition, since the directions of the two magnetic suction forces are perpendicular to each other, only a simple force analysis is required, and there is no need to perform a torque analysis, which simplifies the force analysis process and thus simplifies the design.

[0019] Optionally, at least one of the first magnet and the first magnetic conductive sheet is close to one of the slide rail mechanisms, and at least one of the second magnet and the second magnetic conductive sheet is close to the other of the slide rail mechanisms.

[0020] For example, at least one of the first magnet and the first magnetic conductive sheet is close to the first slide rail mechanism, and at least one of the second magnet and the second magnetic conductive sheet is close to the second slide rail mechanism.

[0021] In the above embodiment, when at least one of the first magnet and the first magnetic conductive sheet of a magnetic attraction component (for example, the first magnetic attraction component) is close to a slide rail mechanism (for example, the first slide rail mechanism), the magnetic attraction force generated by the magnetic attraction component is close to the slide rail mechanism; when at least one of the second magnet and the second magnetic conductive sheet of another magnetic attraction component (for example, the second magnetic attraction component) is close to another slide rail mechanism (for example, the second slide rail mechanism), the magnetic attraction force generated by the other magnetic attraction component is close to the other slide rail mechanism, that is, the magnetic attraction force generated by each magnetic attraction component is close to the slide rail mechanism. The magnetic attraction force under this structure can act well on the lens carrier, so that the lens carrier is well abutted against the slide rail mechanism.

[0022] Optionally, the motor further includes a first drive coil and a second drive coil, and the driving force generated between the first drive coil and the first magnet can move the lens carrier along the z direction, and the driving force generated between the second drive coil and the second magnet can move the lens carrier along the z direction.

[0023] In the above embodiment, by respectively configuring the first magnet and the second magnet with corresponding first drive coils and second drive coils, the first magnet and the first drive coil as well as the second magnet and the second drive coil can form a driving force in the z direction, thereby effectively improving the driving force of AF, thereby improving the focusing speed of AF and the clarity of imaging.

[0024] Optionally, the first magnet and the second magnet are both arranged on the lens carrier, and the first magnetic conductive sheet, the second magnetic conductive sheet, the first driving coil and the second driving coil are all arranged on the frame.

[0025] In the above embodiment, since the first magnet and the second magnet can both be used to generate driving force, they are installed on the lens carrier, and the first driving coil and the second driving coil are set on the frame. This structural design is easy to route to facilitate the electrical connection of the driving coils.

[0026] Optionally, the motor further includes a first driving chip and a second driving chip, the first driving chip is electrically connected to the first driving coil, and the second driving chip is electrically connected to the second driving chip.

[0027] In the above embodiment, by configuring corresponding drive chips for the first drive coil and the second drive coil respectively, each drive chip cooperates with the corresponding drive coil, so that the magnet energy can be maximized and double the driving force for AF can be provided.

[0028] Optionally, the second magnet is arranged on the frame, and the second magnetic conductive sheet is arranged on the lens carrier; and the motor also includes a third drive coil arranged on the frame, and the driving force generated between the third drive coil and the second magnet can enable the frame to drive the lens carrier to move along a first direction, and the first direction is perpendicular to the z direction.

[0029] It should be understood that the first direction may be the x direction or the y direction. The lens carrier drives the lens to move in the x direction or the y direction to achieve an anti-shake function, and the second magnet may be a magnet for anti-shake.

[0030] In an embodiment where the two magnetic components are respectively located on opposite sides of the lens carrier or frame, if the first magnet is arranged on the opposite side of the second magnet for generating the driving force in the y direction, then the first direction is the y direction; if the first magnet is arranged on the opposite side of the second magnet for generating the driving force in the x direction, then the first direction is the x direction.

[0031] In an embodiment where two magnetic suction components are respectively located on two adjacent sides of a lens carrier or a frame, if the first magnet is arranged adjacent to the second magnet for generating a driving force in the y direction, then the first direction is the x direction; if the first magnet is arranged adjacent to the second magnet for generating a driving force in the x direction, then the first direction is the y direction.

[0032] In the above embodiment, in the embodiment where the motor has both AF function and anti-shake function, the second magnet that can generate power in the y direction or x direction in the motor is used to cooperate with the second magnetic conductive sheet to generate magnetic attraction. Since no additional magnet is needed, it not only reduces the space occupied but also saves costs.

[0033] Optionally, the two guide grooves include a first guide groove and a second guide groove, the two slide rail mechanisms include a first slide rail mechanism and a second slide rail mechanism, the first guide groove accommodates the first slide rail mechanism, and the second guide groove accommodates the second slide rail mechanism; the magnetic attraction mechanism position includes a magnetic attraction component, which is located on one side of the lens carrier, and the magnetic attraction force generated by the magnetic attraction mechanism is in the same direction as the opening direction of the first opening groove of the first guide groove, the magnetic attraction mechanism includes a first magnet and a first magnetic conductive sheet, one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier, and the other is arranged on the frame; and a limiting structure is formed on the frame, which is located on two sides opposite to the lens carrier with the magnetic attraction mechanism, for limiting the lens carrier from shaking in a direction close to the magnetic attraction mechanism.

[0034] In the above embodiment, the magnetic attraction mechanism generates a unilateral magnetic attraction force. In order to avoid the problem that the lens carrier moves toward the direction close to the magnetic attraction mechanism due to the unilateral magnetic attraction, thereby causing the lens carrier to have poor contact with the slide rail mechanism, a limiting structure is provided on the side opposite to the magnetic attraction mechanism, which can limit the lens carrier from shaking in the direction close to the magnetic attraction mechanism, and keep the slide rail mechanism and the lens carrier in close contact as much as possible, so that the lens carrier abuts against the slide rail mechanism as much as possible. In addition, since the force of the unilateral magnetic attraction is simple, only a simple force analysis is required, and no torque analysis is required, which simplifies the force analysis process and thus simplifies the design.

[0035] Optionally, the limiting structure is arranged adjacent to the second slide rail mechanism.

[0036] In the above embodiment, the magnetic attraction mechanism is adapted to the first guide groove, and can act well on the first sliding mechanism accommodated in the first guide groove. The limiting structure is arranged opposite to the magnetic attraction mechanism, and the limiting structure acts on the second sliding mechanism. When the limiting structure is arranged adjacent to the second sliding structure, the force provided by the limiting structure in the opposite direction to the magnetic attraction force can act well on the second slide rail mechanism and perform limiting. Combined with the magnetic attraction force, the two slide rail mechanisms can be better maintained in close contact with the lens carrier, so that the lens carrier is better abutted against the slide rail mechanism, and the structure is more stable.

[0037] Optionally, a slot is formed on the lens carrier adjacent to the second slide rail mechanism, the slot is connected to the first opening slot of the second guide slot, the extension direction of the slot is perpendicular to the opening direction of the first opening slot; and a limiting structure is inserted into the slot, and a second opening slot of the second guide slot is formed on the limiting structure.

[0038] In the above embodiment, the limiting structure and the lens carrier jointly form a first guide groove, and the slot for inserting the limiting structure is connected to the first opening slot of the first guide groove. This structural layout that integrates the first guide groove and the limiting structure is compact and avoids occupying a large space; and the force provided by the limiting structure in the opposite direction to the magnetic attraction force can better act on the sliding rail mechanism and perform limiting. Combined with the magnetic attraction force, it can better maintain the close contact between the two sliding rail mechanisms and the lens carrier, so that the lens carrier can better abut against the sliding rail mechanism and the structure is more stable.

[0039] Optionally, the first magnet is arranged on the lens carrier; and the motor also includes a first drive coil arranged on the frame, the first drive coil is arranged on the frame, and the driving force generated between the first drive coil and the first magnet can make the lens carrier move along the z direction.

[0040] In the above embodiment, since the motor of the embodiment of the present application is used for AF, and the motor itself has a magnet capable of generating a driving force for AF, the first magnet used to generate the magnetic attraction force can reuse the magnet of the motor itself, which not only reduces the space occupied but also saves costs. In addition, the structural design of setting the first magnet on the lens carrier and setting the first drive coil on the frame is easy to route so as to realize the electrical connection of the drive coil.

[0041] Optionally, the motor further includes a third magnetic conductive sheet disposed on the lens carrier, for adsorbing the first magnet on the lens carrier, and the third magnetic conductive sheet and the first magnetic conductive sheet are respectively located on both sides of the first magnet.

[0042] In the above embodiment, the third magnetic conductive sheet can increase the magnetic force of the first magnet; it can also serve as an effective means to reduce magnetic leakage of the magnet, ultimately strengthening the magnetic field strength and improving the driving force of the motor; the third magnetic conductive sheet also facilitates better adsorption of the first magnet on the lens carrier, making it difficult to fall off the lens carrier; and the third magnetic conductive sheet can serve as a support member for the lens carrier, thereby increasing the strength of the lens carrier and preventing it from deforming.

[0043] In a second aspect, a camera module is provided, comprising a lens and a motor as in any one of the implementations of the first aspect described above.

[0044] In a third aspect, an electronic device is provided, comprising the camera module of the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic structural diagram of an electronic device provided in an embodiment of the present application.

[0046] Figure 2 It is a schematic diagram of a camera module provided in an embodiment of the present application.

[0047] Figure 3 It is a schematic structural diagram of a motor in the prior art provided in an embodiment of the present application.

[0048] Figure 4 yes Figure 3 Cross-section view from AA perspective.

[0049] Figure 5 It is an exploded diagram of the motor provided in the embodiment of the present application.

[0050] Figure 6 is another exploded diagram of the motor provided in an embodiment of the present application.

[0051] Figure 7 This is another exploded view of the motor provided in the embodiment of the present application.

[0052] Figure 8It is a schematic structural diagram of a motor provided in an embodiment of the present application with the housing and the slide rail mechanism removed.

[0053] Fig. 9 It is a schematic structural diagram of a motor with the outer casing removed provided in an embodiment of the present application.

[0054] Fig.10 It is an exploded view of another structure of the motor provided in an embodiment of the present application.

[0055] Fig.11 It is a schematic structural diagram of a motor provided in an embodiment of the present application with the housing and the slide rail mechanism removed.

[0056] Fig.12 It is a schematic structural diagram of a motor with the outer casing removed provided in an embodiment of the present application.

[0057] Fig.13 It is another schematic structural diagram of the motor provided in an embodiment of the present application.

[0058] Fig.14 It is an exploded view of another structure of the motor provided in an embodiment of the present application.

[0059] Fig.15 It is a schematic structural diagram of a motor provided in an embodiment of the present application with the housing and the slide rail mechanism removed.

[0060] Fig.16 It is a schematic structural diagram of a motor with the outer casing removed provided in an embodiment of the present application.

[0061] Fig.17 It is a schematic structural diagram of the lens carrier provided in an embodiment of the present application.

[0062] Fig.18 It is a schematic structural diagram of the framework provided in the embodiment of the present application. DETAILED DESCRIPTION

[0063] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0064] The electronic device of the embodiment of the present application can be any device with a photo or video function. For example, the electronic device can be a mobile phone, a tablet computer, a driving recorder, a security monitoring, a camera, a video recorder, a camera, an intelligent robot, or other devices with a photo or video function.

[0065] For ease of description, the width direction of the electronic device is defined as the x direction, the length direction of the electronic device is defined as the y direction, and the thickness direction of the electronic device is defined as the z direction. The x direction, y direction, and z direction are mutually perpendicular. The x direction and the y direction form an xy plane, the x direction and the z direction form an xz plane, and the y direction and the z direction form a yz plane. The z direction is parallel to the optical axis direction of the lens in the electronic device.

[0066] Figure 1 It is a schematic structural diagram of an electronic device provided in an embodiment of the present application. Figure 1 (a) and Figure 1 (b) shows a schematic structural diagram of the electronic device from two viewing angles.

[0067] refer to Figure 1 The electronic device 100 includes a housing 12 and a camera module 11 , and the camera module 11 is installed inside the housing 12 .

[0068] In one example, the camera module 11 can be used for a front camera, such as Figure 1 In the front of the electronic device 100 shown in (a), the camera module 11 is used for the front camera. In another example, the camera module 11 can be used for the rear camera, such as Figure 1 On the back side of the electronic device 100 shown in (b), the camera module 11 is used for the rear camera.

[0069] The number of camera modules 11 is not limited to one, and may be two or more. Figure 1 As shown in (b) , four camera modules 11 are installed on the back of the electronic device 100 .

[0070] The electronic device 100 further includes a camera decoration (Deco). In order not to affect the appearance of the electronic device 100 and to protect the camera, the camera decoration is a hollow shell-shaped decoration made of metal or plastic material.

[0071] The electronic device 100 further includes a processor. The processor and the camera module 11 are arranged in the housing 12. The camera module 11 is used to acquire image data and input the image data into the processor, and the processor is used to process the image data.

[0072] The electronic device also includes a display screen 13, which is installed on the shell 12. A storage space is formed in the shell 12. The processor and the camera module 11 can be installed in the storage space. The display screen 13 is electrically connected to the processor. The display screen 13 can display pictures or videos after image processing by the processor.

[0073] It should be understood that the housing 12 may also include other components, such as a battery, a flash, a fingerprint recognition module, an earpiece, a sensor, etc., but is not limited thereto.

[0074] Figure 2 1 is a schematic diagram of a camera module provided in an embodiment of the present application. The camera module 11 is configured with a motor 1 and a lens 2, and the motor 1 generally has an automatic focus (AF) function. In the AF function, the lens 2 in the camera module 11 is driven to move along the optical axis direction of the lens 2 by the driving force provided by the motor 1 to realize the AF function. It should be noted that the optical axis direction of the lens 2 is the z direction, which is explained below and will not be repeated here.

[0075] Figure 3 It is a schematic structural diagram of a motor in the prior art provided in an embodiment of the present application. Figure 4 yes Figure 3 Cross-section view from AA perspective.

[0076] refer to Figure 3 and Figure 4 The motor includes a base 1a, a frame 1b and a lens carrier 1c. The lens carrier 1c is used to install the lens. The lens carrier 1c is sleeved in the frame 1b. The lens carrier 1c can move relative to the frame 1b and the base 1a along the optical axis direction (z direction) of the lens under the action of the magnetic field. In order to reduce the resistance during the movement, a ball 1d is arranged between the lens carrier 1c and the frame 1b to reduce the friction. In addition, a magnetic attraction structure (not shown in the figure) is also arranged on the same side as the ball 1d. The magnetic attraction force generated by the magnetic attraction structure can make the lens carrier 1c abut against the ball 1d as much as possible, so as to maintain the stability of the structure as much as possible and maximize the contact between the ball 1d and the lens carrier 1c to reduce the friction.

[0077] After the motor and the lens are matched, the weight of the lens carrier 1c and the mover formed by the lens increases. Figure 4 The stability in the posture shown is the worst. Under the gravity of the mover, the lens carrier 1c is prone to flip in the clockwise direction as shown in the figure. Compared with other postures, the magnetic attraction force required is the largest. Therefore, the magnetic attraction force required in this posture is used as the design basis.

[0078] Figure 4The figure also illustrates the force analysis of the motor in this posture. The gravity of the mover formed by the lens carrier 1c and the lens is G, G=Wg, W is the mass of the mover, the lever arm of the mover is S, and the lever arm of the magnetic force F is L. In order to make the lens carrier 1c contact the ball 1d as much as possible, the following conditions must be met: F×L>Wg×S. As can be seen from the figure, in this posture, the lever arm L of the magnetic force F is very small, resulting in the need for a large magnetic force F. For upright motors, the motor has a flat shape, and S is several times larger than L. Therefore, the required magnetic force F is at least several times larger than Wg.

[0079] To sum up the analysis, the above structure requires a larger magnetic attraction force. The larger magnetic attraction force leads to an increase in the friction force during the movement of the mover. The increase in friction force also leads to an increase in the driving force, which increases power consumption and cost, and is not conducive to the miniaturization design of the motor, thus increasing the design difficulty overall.

[0080] In order to solve the above problems, an embodiment of the present application provides a new motor, which includes a magnetic attraction mechanism and two sliding rail mechanisms. The two sliding rail mechanisms are diagonally arranged between the frame and the lens carrier on a plane perpendicular to the optical axis direction of the lens, and are used to provide a sliding support surface for the movement of the lens carrier along the optical axis direction to reduce friction. The magnetic attraction force generated by the magnetic attraction mechanism is used to abut the lens carrier against the sliding rail mechanism. Since the two slide rail mechanisms are arranged diagonally and the structure is evenly distributed, the lens carrier interacts with the slide rail mechanism at the diagonal during movement, so that the overall force on the lens carrier becomes uniform, which is beneficial to the stability of the structure. Compared with the ball motor with a ball set on one side in the prior art, the motor with a diagonally arranged slide rail mechanism in the present application has a better stability structure, which avoids the phenomenon that the motor may flip to a large extent in any state. Therefore, the required magnetic attraction force will become smaller, that is, a smaller magnetic attraction force can make the lens carrier better contact with the slide rail mechanism, so that the lens carrier can better abut against the slide rail mechanism, thereby reducing the driving force required for autofocus, reducing power consumption and cost, and is beneficial to the miniaturization design of the motor, which effectively simplifies the design difficulty as a whole.

[0081] The following, combined Figures 5 to 18 , the motor provided in the embodiment of the present application is described in detail.

[0082] Figure 5 It is an exploded diagram of the motor provided in the embodiment of the present application. Figure 6 is another exploded diagram of the motor provided in an embodiment of the present application. Figure 7 This is another exploded view of the motor provided in the embodiment of the present application.

[0083] refer to Figures 5 to 7 The motor 1 includes a housing 10 , a lens carrier 21 , a frame 31 , a magnetic attraction mechanism 50 and two slide rail mechanisms 40 .

[0084] The housing 10 is formed with an accommodating space, and the lens carrier 21 , the frame 31 , the magnetic attraction mechanism 50 and the two slide rail mechanisms 40 are accommodated in the accommodating space.

[0085] Exemplarily, the lens carrier 21 is sleeved on the inner side of the frame 31, and the lens carrier 21 is used to install the lens. The driving force of the motor 1 drives the lens carrier 21 to move along the z direction (parallel to the optical axis direction of the lens) to achieve the AF function. A part of the magnetic attraction mechanism 50 is installed on the lens carrier 21, and another part of the magnetic attraction mechanism 50 installed on the frame 31 plays an adsorption role.

[0086] Exemplarily, the frame 31 is sleeved on the outer side of the lens carrier 21, circumferentially enclosing the lens carrier 21, and can limit the position of the lens carrier 21 in the xy plane. Another part of the magnetic attraction mechanism 50 is mounted on the frame 31.

[0087] It should be understood that in order to reduce the friction between the lens carrier 21 and the frame 31 during the movement, a clearance fit is provided between the lens carrier 21 and the frame 31 .

[0088] The slide rail mechanism 40 is used to provide a sliding support surface for the movement of the lens carrier 21 along the z direction. During the focusing process, the lens carrier 21 moves along the z direction relative to the frame 31 and the slide rail mechanism 40, and the lens carrier 21 and the slide rail mechanism 40 are in sliding contact, which can further reduce the friction during the movement process.

[0089] The two slide rail mechanisms 40 are diagonally arranged on the inner side of the frame 31 in a first plane perpendicular to the z-direction, and can provide a sliding support surface for the lens carrier 21 at the diagonal position, so that the force of the lens carrier 21 becomes uniform as a whole, which is beneficial to the stability of the structure. The two slide rail mechanisms 40 are arranged diagonally, which can be understood as the two slide rail mechanisms 40 are arranged at two opposite corners of the four corners of the frame 31.

[0090] Figure 8 It is a schematic structural diagram of a motor provided in an embodiment of the present application with the housing and the slide rail mechanism removed.

[0091] refer to Figure 7 and Figure 8 Two guide grooves 60 are formed between the lens carrier 21 and the frame 31. The two guide grooves 60 correspond to the two slide rail mechanisms 60. One guide groove 60 accommodates the corresponding slide rail mechanism 40. The guide groove 60 includes a first opening groove 61 provided on the lens carrier 21 and a second opening groove 62 provided on the frame. For ease of description, the two guide grooves 60 are respectively recorded as guide grooves 60a and guide grooves 60b, and the two slide rail mechanisms 40 are respectively recorded as slide rail mechanisms 40a and slide rail mechanisms 40b. Then, the guide groove 60a accommodates the slide rail mechanism 40a, and the guide groove 60b accommodates the slide rail mechanism 40b.

[0092] A portion of the magnetic attraction mechanism 50 is disposed on the lens carrier 21, and the other portion is disposed on the frame 31. A magnetic attraction force directed toward the housing 10 (i.e., an outward magnetic attraction force) is generated between the two portions, so that the lens carrier 21 leans toward one side of the frame 31. When the lens carrier 21 leans toward one side of the frame 31, the lens carrier 21 (the groove wall of the first opening groove 61 of the guide groove 60) can abut against the slide rail mechanism 40. In other words, the lens carrier 21 can always maintain contact with the slide rail mechanism 40, thereby maintaining the stability of the structure as much as possible, and maximizing the use of the contact between the slide rail mechanism 40 and the lens carrier 21 to reduce friction.

[0093] In the embodiment of the present application, the magnetic attraction mechanism may include one or more magnetic attraction components, each magnetic attraction component generates a magnetic attraction force in one direction. When there are multiple magnetic attraction components, multiple magnetic attraction components generate magnetic attraction forces in different directions. Through the magnetic attraction forces in various directions, the lens carrier 21 is abutted against the slide rail mechanism 40 to better maintain the stability of the structure. The magnetic attraction mechanism is specifically described below through various structures, which will not be repeated here.

[0094] In the above embodiment, the motor includes two slide rail mechanisms 40 arranged diagonally, so that the lens carrier 21 interacts with the slide rail mechanism 40 at the diagonal position, so that the force on the lens carrier 21 becomes uniform as a whole, which is beneficial to the stability of the structure. Compared with the ball-bearing motor with a ball bearing arranged on one side in the prior art, the motor structure with better stability of the present application can avoid the phenomenon that the motor may flip to a large extent in any state, so the required magnetic attraction force will become smaller, that is, a smaller magnetic attraction force can be used to make the lens carrier 21 better contact with the slide rail mechanism 40, so that the lens carrier 21 is better abutted against the slide rail mechanism 40, thereby reducing the driving force required for autofocus, reducing power consumption and cost, and improving the focusing speed, which is beneficial to the miniaturization design of the motor and effectively simplifies the design difficulty as a whole.

[0095] It should be noted that, since the stability of the motor in different postures is different, the magnetic attraction force required in each posture is not necessarily the same. Generally, the magnetic attraction force required by the motor in the posture with the worst stability is the largest. Therefore, when designing the magnetic attraction mechanism, generally, the magnetic attraction force required by the motor in the posture with the worst stability is used as the design basis. It can be understood that when the magnetic attraction force in the posture with the worst stability meets the requirements, the magnetic attraction forces in other postures must meet the requirements.

[0096] For ease of description and easy viewing of the drawings, in the embodiment of the present application, the structure composed of the lens carrier 21 and the components installed on the lens carrier 21 (for example, the magnet 22, the magnetic sheet 23, and the magnetic sheet 24) is referred to as the carrier assembly 20, and the structure composed of the frame 31 and the components installed on the frame 31 (for example, the magnetic sheet 32, the magnet 33, the magnetic sheet 36, the magnet 37, the magnetic sheet 38) is referred to as the frame assembly 30.

[0097] The slide rail mechanism 40 of the motor in the embodiment of the present application can be any form of structure that can provide a sliding support surface, without any limitation.

[0098] In some embodiments, the slide rail mechanism 40 may include at least one ball (not shown in the figure). When there are multiple balls, the multiple balls are arranged along the z direction. The ball is accommodated in the guide groove 60. Under the action of the magnetic attraction, the ball is in close contact with the guide groove 60. Since the ball is in rolling contact with the groove wall of the guide groove 60, the contact area is small. When subjected to a large extrusion force, a pit will be formed on the guide groove 60, which is not conducive to the smooth rolling of the ball, thereby affecting the z-direction movement of the lens carrier 21 and the lens, and reducing the focusing speed.

[0099] Based on this, in other embodiments, reference Figure 7 The slide rail mechanism 40 includes a guide column 41, which extends along the z direction and has a columnar structure.

[0100] Since the guide post 41 is in surface contact or line contact with the lens carrier 21, and the guide post 41 is in surface contact or line contact with the frame 31, the contact area between the guide post 41 and the lens carrier 21 (the first opening groove 61 of the lens carrier 21) and the frame 31 (the second opening groove 62 of the frame 31) is increased, and the guide post 41 can withstand a large extrusion force, avoiding the impact of pits on the lens carrier 21 and the frame 31, which is beneficial to the z-direction movement of the lens carrier 21 and the lens, thereby improving the focusing speed, and is very suitable for scenes with heavy lenses. In addition, the guide post 41 extends along the z-direction to form a columnar structure, and the outer surface of the guide post 41 serves as a guide surface, which is beneficial to the movement of the lens carrier 21 along the z-direction. It is not easy to tilt, and the stability of the structure can be further improved.

[0101] Exemplarily, the cross-section of the guide post 41 may be circular or elliptical, and the cross-section of the guide post 41 is perpendicular to the length direction of the guide post 41 ; when the cross-section of the guide post 41 is circular, the guide surface is a cylindrical surface.

[0102] In this embodiment, the relationship among the guide column 41 , the lens carrier 21 and the frame 31 can be divided into three situations.

[0103] Case 1

[0104] When the guide column 41 is fixedly connected to the lens carrier 21, there is line contact between the guide column 41 and the frame 31. The guide column 41 and the lens carrier 21 can be fixed by bonding or gluing, or the guide column 41 and the lens carrier 21 can be fixed by an integrated molding process. In this way, the line contact between the guide column 41 and the frame 31 can reduce friction on the one hand, and increase the contact amount between the guide column 41 and the frame 31 on the other hand, thereby avoiding pits on the lens carrier 21 and the frame 31 caused by impact.

[0105] Case 2

[0106] When the guide post 41 is fixedly connected to the frame 31, there is line contact between the guide post 41 and the lens carrier 21. The guide post 41 and the frame 31 can be fixed by bonding or gluing, or the guide post 41 and the frame 31 can be fixed by an integrated molding process. In this way, the line contact between the guide post 41 and the lens carrier 21 can reduce friction on the one hand, and increase the contact amount between the guide post 41 and the lens carrier 21 on the other hand, thereby avoiding pits on the lens carrier 21 and the frame 31 caused by impact.

[0107] Case 3

[0108] The frame 31 and the lens carrier 21 are not fixed to the guide post 41. The guide post 41 and the frame 31 are in line contact, and the guide post 41 and the lens carrier 21 are in line contact. Since the line contact is adopted, friction can be reduced on the one hand, and pits on the lens carrier 21 and the frame 31 can be avoided on the other hand. In this case, the opposite ends of the guide post 41 can be respectively abutted against the frame 31 (or the base 71) and the housing 10, so that the guide post 41 will not generate relative movement with the frame 31 (or the base 71) and the housing 10 in the z direction.

[0109] In other embodiments, the slide rail mechanism 40 may also be a combination of a guide post and a ball, that is, the slide rail mechanism 40 includes a guide post and a ball, the guide groove 60 accommodates the guide post and the ball, the ball contacts the guide post and rolls in the same direction.

[0110] In some embodiments, the magnetic attraction mechanism 50 includes two magnetic attraction components 51, and the two magnetic attraction components 51 are respectively located on both sides of the lens carrier 21 or the frame 31, and the two magnetic attraction components 51 are used to generate magnetic attraction forces in different directions. One magnetic attraction component 51 includes a first magnet and a first magnetic conductive sheet arranged corresponding to the first magnet, and the other magnetic attraction component 51 includes a second magnet and a second magnetic conductive sheet arranged corresponding to the second magnet, wherein one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier 21, and the other of the first magnet and the first magnetic conductive sheet is arranged on the frame 31, one of the second magnet and the second magnetic conductive sheet is arranged on the lens carrier 21, and the other of the second magnet and the second magnetic conductive sheet is arranged on the frame 31.

[0111] In one example, two magnetic components 51 are respectively located on opposite sides of the lens carrier 21 or the frame 31. Figures 5 to 9 In another example, two magnetic components 51 are respectively located on two adjacent sides of the lens carrier 21 or the frame 31, as described below. Figures 10 to 13 shown.

[0112] Hereinafter, first, a motor is specifically described in the case where two magnetic assemblies 51 are respectively disposed on two opposite sides of the lens carrier 21 or the frame 31. Subsequently, a motor is specifically described in the case where two magnetic assemblies 51 are respectively disposed on two adjacent sides of the lens carrier 21 or the frame 31. In addition, for the convenience of description, the two magnetic assemblies 51 are respectively recorded as magnetic assemblies 51a and magnetic assemblies 51b.

[0113] refer to Figures 5 to 7 , the magnetic attraction component 51a includes a magnet 22 and a magnetic conductive sheet 32, and the magnetic attraction component 51b includes a magnet 33 and a magnetic conductive sheet 24. Here, the magnet 22 may be the first magnet mentioned above, the magnetic conductive sheet 32 ​​may be the first magnetic conductive sheet, the magnet 33 may be the second magnet, and the magnetic conductive sheet 24 may be the second magnetic conductive sheet.

[0114] In one example, the magnet 22 is disposed on the lens carrier 21, and the magnetic conductive sheet 32 ​​is disposed on the frame 31. In another example (not shown in the figure), the magnetic conductive sheet 32 ​​is disposed on the lens carrier 21, and the magnet 22 is disposed on the frame 31.

[0115] In one example, the magnetic conductive sheet 24 is disposed on the lens carrier 21, and the magnet 33 is disposed on the frame 31. In another example (not shown), the magnet 33 is disposed on the lens carrier 21, and the magnetic conductive sheet 24 is disposed on the frame 31.

[0116] refer to Figure 7 and Figure 8, the two magnetic components 51 are respectively matched with the two guide slots 60, and the direction of the magnetic attraction force generated by the magnetic component 51 is in the same direction as the opening direction of the first opening slot 61 of the matched guide slot 60. Specifically, as Figure 8 As shown, the direction of the magnetic attraction force F1 generated by the magnetic attraction component 51a is the same as the opening direction of the first opening groove 61 of the guide groove 60a, both along the downward side of the y direction, and the direction of the magnetic attraction force F2 generated by the magnetic attraction component 51b is the same as the opening direction of the first opening groove 61 of the guide groove 60b, both along the upward side of the y direction. In this way, under the action of the magnetic attraction force F1 and the magnetic attraction force F2, the first opening groove 61 of the lens carrier 21 can be in close contact with the slide rail mechanism 40, so that the lens carrier 21 is abutted against the slide rail mechanism 40.

[0117] In some embodiments, reference Figure 5 and Figure 6 At least one of the magnet 22 and the magnetic conductive sheet 32 ​​in the magnetic attraction component 51a is close to one of the slide rail mechanisms 40 (for example, the slide rail mechanism 40a), and at least one of the magnet 33 and the magnetic conductive sheet 24 in the magnetic attraction component 51b is close to the other slide rail mechanism 40 (for example, the slide rail mechanism 40b).

[0118] It should be understood that at least one of the magnet 22 and the magnetic conductive sheet 32 ​​in the magnetic attraction component 51a is close to the slide rail mechanism 40a, which means that at least one component is close to the slide rail mechanism 40a along the x-direction, and at least one of the magnet 33 and the magnetic conductive sheet 24 in the magnetic attraction component 51b is close to the slide rail mechanism 40b, which also means that at least one component is close to the slide rail mechanism 40b along the x-direction.

[0119] In the above embodiment, when at least one of the magnet 22 and the magnetic conductive sheet 32 ​​is close to the slide rail mechanism 40a, the magnetic attraction force generated by the magnetic attraction component 51a is close to the slide rail mechanism 40a, and when at least one of the magnet 33 and the magnetic conductive sheet 24 is close to the slide rail mechanism 40b, the magnetic attraction force generated by the magnetic attraction component 51b is close to the slide rail mechanism 40b, and the magnetic attraction components 51a and 51b form a Figure 8 The diagonal magnetic attraction force shown forms a rotating magnetic attraction structure. The diagonal magnetic attraction force is close to the slide rail mechanism 40 and can act well on the lens carrier 21, so that the lens carrier 21 is well abutted against the slide rail mechanism 40.

[0120] Fig. 9 is a schematic structural diagram of a motor without a housing provided in an embodiment of the present application. It should be noted that for the motor with a diagonally arranged slide rail mechanism of the present application, the motor is in Fig. 9 The stability in the posture shown is poor, so the magnetic attraction in this posture is used for analysis.

[0121] refer to Fig. 9Assume that the gravity of the mover formed by the lens carrier 21 and the lens is G, G=Wg, W is the mass of the mover, the lever arm of the mover is S, the lever arm of the magnetic attraction force F1 generated by the magnetic attraction component 51a is L1, and the lever arm of the magnetic attraction force F2 generated by the magnetic attraction component 51b is L2.

[0122] Under this structure, the lens carrier 21 generates a clockwise torque under the action of gravity, and tends to rotate clockwise. The magnetic attraction force of the magnetic attraction force F1 and the magnetic attraction force F2 can generate a counterclockwise torque (as shown by the arrow in the figure), which can balance the torque generated by gravity and maintain the stability of the structure. Moreover, it can be seen that the lever arm L2 of the magnetic attraction force F2 is significantly smaller than the lever arm S of gravity. Compared with the prior art, the magnetic attraction force F2 is much smaller. For the lever arm L1 of the magnetic attraction force F1, since F1 is in the same direction as gravity G, the lever arm L1 is naturally as small as possible. When designing the magnetic attraction force, because it is necessary to consider the stability of the motor in different postures and for the convenience of design, the magnetic attraction forces generated by the two magnetic components will be designed to be as close as possible.

[0123] Combination Figure 4 and Fig. 9 For the same mover weight W, Figure 4 In the example, S is about 9.5mm, L is about 1.8mm, and the required magnetic attraction force F>9.5 / 1.8*5*W=26.4W, which is about 26 times the weight of the mover. Fig. 9 In the figure, S is about 7.8mm, L2 is about 13.3mm, then the required magnetic attraction force F>7.8 / 13.3*5*W=2.9W. It can be seen that the difference between the magnetic attraction forces of the two structures is close to 26.4 / 2.9=9.1 times, that is, the magnetic attraction force required by the motor of the embodiment of the present application is 1 / 9 of the magnetic attraction force of the motor of the prior art, and the friction force is also reduced to 1 / 9 of the friction force of the prior art. If the magnetic restoring force is not considered, the design requirement of the driving force required by the motor is reduced by about 9 times, which greatly reduces the difficulty of design.

[0124] In the above embodiment, at least one of the magnet 22 and the magnetic sheet 32 ​​is close to the slide rail mechanism 40a, and at least one of the magnet 33 and the magnetic sheet 24 is close to the slide rail mechanism 40b, so that the two magnetic suction components 51 form a diagonal magnetic suction force, which increases the force arm of the magnetic suction force to achieve the purpose of reducing the magnetic suction force. The diagonal magnetic suction force forms a state of rotating magnetic suction, and the magnetic suction force of the two magnetic suction components 51 can form a torque opposite to the torque of gravity, which is used to balance the torque of gravity and well maintain the stability of the structure. Moreover, this diagonal magnetic suction force is close to the slide rail mechanism 40, which can act well on the lens carrier 21, so that the lens carrier 21 is well abutted against the slide rail mechanism 40.

[0125] Since the motor of the embodiment of the present application is used for AF, the motor itself has a magnet and a drive coil for generating a driving force in the z direction. Therefore, in order to reduce space occupation and save costs, in some embodiments, the magnet used to generate magnetic attraction force in the present application can reuse the magnet for generating a driving force in the z direction that the motor itself already has.

[0126] refer to Figure 7 The motor includes a driving coil 34. The driving force generated between the driving coil 34 and the magnet 22 can enable the lens carrier 21 to drive the lens to move along the z direction.

[0127] In the embodiment where the magnet 22 is also used to generate driving force, illustratively, the magnet 22 is disposed on the lens carrier 21, the magnetic conductive sheet 32 ​​is disposed on the frame 31, and the driving coil 34 is disposed on the frame 31. This structural design facilitates wiring to achieve wire connection of the driving coil.

[0128] A circuit board 34 b and a driving chip 34 b corresponding to the driving coil 34 are also disposed on the frame 31 . The driving coil 34 and the driving chip 34 b are both electrically connected to the circuit board 34 b.

[0129] For example, reference Figure 7 The motor further includes a magnetic conductive sheet 23 disposed on the lens carrier 21 for adsorbing the magnet 22 on the lens carrier 21 , and the magnetic conductive sheet 23 and the magnetic conductive sheet 32 ​​are respectively located on both sides of the magnet 22 .

[0130] In the above embodiment, the magnetic conductive sheet 23 can increase the magnetic force of the magnet 22; it can also serve as an effective means to reduce magnetic leakage of the magnet, ultimately strengthening the magnetic field strength and improving the driving force of the motor; the magnetic conductive sheet 23 also facilitates better adsorption of the magnet 22 on the lens carrier 21, and it is not easy to fall off the lens carrier 21; moreover, the magnetic conductive sheet 23 can serve as a support member for the lens carrier 21, thereby improving the strength of the lens carrier and preventing it from deforming.

[0131] In some embodiments, the motor of the present application can not only realize the AF function, but also realize the optical image stabilizer (OIS) optical image stabilization function.

[0132] refer to Figure 7 The motor further includes a base assembly 70, which includes a base 71 and a driving coil 72. The driving coil 72 generates a driving force in the y direction with the magnet 33, which enables the frame 31 to drive the lens carrier 21 to move along the y direction to achieve the OIS anti-shake function. In this embodiment, the magnet 33 is disposed on the frame 31, and the magnetic conductive sheet 24 is disposed on the lens carrier 21.

[0133] A circuit board 72 a and a driving chip 72 b corresponding to the driving coil 72 are disposed on the base 71 . The driving coil 72 and the driving chip 72 b are both electrically connected to the circuit board 72 b.

[0134] When the motor has both AF function and anti-shake function, the magnet 33 capable of generating y-direction in the motor is utilized to cooperate with the magnetic conductive sheet 24 to generate magnetic attraction. Since no additional magnet is needed, it not only reduces space occupation but also saves costs.

[0135] For example, reference Figure 7 The motor further includes a magnetic conductive sheet 36 disposed on the frame 31 for adsorbing the magnet 33 on the frame 31. The function of the magnetic conductive sheet 36 can refer to the function of the magnetic conductive sheet 23, and will not be described in detail.

[0136] refer to Figure 7 The motor also includes a magnet 37 arranged on the frame 31 and a driving coil 73 arranged on the base 71. A driving force in the x direction is generated between the driving coil 73 and the magnet 37, so that the frame 31 can drive the lens carrier 21 to move along the x direction to realize the OIS anti-shake function.

[0137] A circuit board 73 a and a driving chip 73 b corresponding to the driving coil 73 are disposed on the base 71 . The driving coil 73 and the driving chip 73 b are both electrically connected to the circuit board 73 a .

[0138] For example, reference Figure 7 The motor further includes a magnetic conductive sheet 38 disposed on the frame 31, for adsorbing the magnet 37 on the frame 31. The function of the magnetic conductive sheet 38 can refer to the function of the magnetic conductive sheet 23, and will not be described in detail.

[0139] It should be understood that the above Figures 5 to 9 The structure of the motor described is for illustrative purposes only and should not be construed as limiting the embodiments of the present application.

[0140] In the embodiment where the motor does not need to realize the anti-shake function, that is, the motor of the present application is simply used to realize the AF function, or in other words, the motor of the present application is an AF motor independent of the anti-shake function, illustratively, the motor may not need the base assembly 70, and the frame assembly 30 may be used to realize the related functions of the base assembly 70. For example, the housing 10 is connected to the frame 31, and a support structure is formed at the bottom of the frame 31 away from the lens to support the lens carrier 21.

[0141] Exemplarily, the positions of the magnet 22 and the magnetic conductive sheet 32 ​​are interchanged, that is, the magnet 22 is arranged on the frame 31, and the magnetic conductive sheet 32 ​​is arranged on the lens carrier 21. Exemplarily, the positions of the magnet 33 and the magnetic conductive sheet 24 are interchanged, that is, the magnet 33 is arranged on the frame 31, and the magnetic conductive sheet 24 is arranged on the lens carrier 21.

[0142] In the embodiment where the motor has both AF function and anti-shake function, in the embodiment where the motor itself includes a magnetic conductive sheet 36, a magnet 33 for generating a y-direction driving force, and a driving coil 72, illustratively, the lens carrier 21 may not be provided with a magnetic conductive sheet 24, but a new magnet may be provided on the lens carrier 21, and the new magnet and the magnetic conductive sheet 36 may form a magnetic attraction component 51b to generate a magnetic attraction force. In this embodiment, the new magnet may be the second magnet mentioned above, the magnetic conductive sheet 36 may be the second magnetic conductive sheet mentioned above, the second magnet is provided on the lens carrier 21, and the second magnetic conductive sheet is provided on the frame 31.

[0143] Based on the above-defined first magnet, first magnetic conductive sheet, second magnet, and second magnetic conductive sheet, the present application may also define a first drive coil, a third drive coil, and a third magnetic conductive sheet. Figures 5 to 9 In the structure, the first magnet may be magnet 22, the first magnetic conductive sheet may be magnetic conductive sheet 32, the second magnet may be magnet 33, the second magnetic conductive sheet may be magnetic conductive sheet 24, the first drive coil may be drive coil 34, the third magnetic conductive sheet may be magnetic conductive sheet 23, and the third drive coil may be drive coil 72.

[0144] Figures 10 to 13 The figure shows the schematic diagram of the relevant structure of the motor in which two magnetic suction components 51 are respectively arranged on two adjacent sides of the lens carrier 21 or the frame 31. Figures 10 to 13 , the structure of the motor in this case is described in detail.

[0145] In addition, the similar design of the motor in the case where the two magnetic components 51 are respectively arranged on the opposite sides of the lens carrier 21 or the frame 31 is only briefly described or not repeated, and the focus is on describing the differences between the motor in this case and the motor in the case where the two magnetic components 51 are respectively arranged on the opposite sides of the lens carrier 21 or the frame 31.

[0146] Fig.10 It is an exploded view of another structure of the motor provided in an embodiment of the present application. Fig.11 It is a schematic structural diagram of a motor provided in an embodiment of the present application with the housing and the slide rail mechanism removed. Fig.12 It is a schematic structural diagram of a motor with the outer casing removed provided in an embodiment of the present application.

[0147] The two magnetic attraction components 51 of the magnetic attraction mechanism 50 are respectively located on two adjacent sides of the lens carrier 21 or the frame 31. One magnetic attraction component 51 includes a first magnet and a first magnetic conductive sheet arranged corresponding to the first magnet, and the other magnetic attraction component 51 includes a second magnet and a second magnetic conductive sheet arranged corresponding to the second magnet, wherein one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier 21, the other of the first magnet and the first magnetic conductive sheet is arranged on the frame 31, one of the second magnet and the second magnetic conductive sheet is arranged on the lens carrier 21, and the other of the second magnet and the second magnetic conductive sheet is arranged on the frame 31.

[0148] As above, for the convenience of description, the two magnetic components 51 are respectively referred to as magnetic components 51a and magnetic components 51b. Fig.10 , the magnetic attraction component 51a includes a magnet 22 and a magnetic conductive sheet 32, and the magnetic attraction component 51b includes a magnet 25 and a magnetic conductive sheet 38. Here, the magnet 22 may be the first magnet mentioned above, the magnetic conductive sheet 32 ​​may be the first magnetic conductive sheet, the magnet 25 may be the second magnet, and the magnetic conductive sheet 38 may be the second magnetic conductive sheet.

[0149] In one example (such as Fig.10 ), the magnet 22 is disposed on the lens carrier 21, and the magnetic conductive sheet 32 ​​is disposed on the frame 31. In another example (not shown in the figure), the magnetic conductive sheet 32 ​​is disposed on the lens carrier 21, and the magnet 22 is disposed on the frame 31.

[0150] In one example (not shown in the figure), the magnetic sheet 38 is disposed on the lens carrier 21, and the magnet 25 is disposed on the frame 31. Fig.10 As shown in FIG. 1 , the magnet 25 is disposed on the lens carrier 21 , and the magnetic conductive sheet 38 is disposed on the frame 31 .

[0151] refer to Fig.11 and Fig.12 , the two magnetic components 51 are respectively matched with the two guide slots 60, and the direction of the magnetic attraction force generated by the magnetic component 51 is in the same direction as the opening direction of the first opening slot 61 of the matched guide slot 60. Specifically, as Fig.11 As shown, the direction of the magnetic attraction force F1 generated by the magnetic attraction component 51a is the same as the opening direction of the first opening groove 61 of the guide groove 60a, both along the downward side of the y direction, and the direction of the magnetic attraction force F2 generated by the magnetic attraction component 51b is the same as the opening direction of the first opening groove 61 of the guide groove 60b, both along the right side of the x direction. In this way, under the action of the magnetic attraction force F1 and the magnetic attraction force F2, the first opening groove 61 of the lens carrier 21 can be in close contact with the slide rail mechanism 40, so that the lens carrier 21 is abutted against the slide rail mechanism 40.

[0152] In the above embodiment, it can be seen that under the action of the magnetic attraction force F1 and the magnetic attraction force F2, an oblique resultant force F3 (such as Fig.12 As shown in FIG. 4 , the magnetic attraction force F1 cooperates with the adapted guide groove 60a so that the first opening groove 61 of the guide groove 60a is in close contact with the slide rail mechanism 40a, and the magnetic attraction force F2 cooperates with the adapted guide groove 60b so that the first opening groove 61 of the guide groove 60b is in close contact with the slide rail mechanism 40b, so that the first opening groove 61 of the lens carrier 21 can be in close contact with the slide rail mechanism 40 on both sides of the lens carrier 21, the overall force is relatively uniform, the reliability is good, and the lens carrier 21 can be well abutted against the slide rail mechanism 40. In addition, since the directions of the magnetic attraction force F1 and the magnetic attraction force F2 are perpendicular to each other, only a simple force analysis is required, and no torque analysis is required, which simplifies the force analysis process and thus simplifies the design.

[0153] Relevant data show that in a motor in which two magnetic suction components 51 are respectively arranged on two adjacent sides of the lens carrier 21 or the frame 31, the magnetic suction force required by the motor may only be 3-5 times the weight of the rotor.

[0154] In some embodiments, reference Fig.10 At least one of the magnet 22 and the magnetic conductive sheet 32 ​​in the magnetic attraction component 51a is close to the slide rail mechanism 40a, and at least one of the magnet 25 and the magnetic conductive sheet 38 in the magnetic attraction component 51b is close to the slide rail mechanism 40b.

[0155] In the above embodiment, when at least one of the magnet 22 and the magnetic conductive sheet 32 ​​is close to the slide rail mechanism 40a, the magnetic attraction force generated by the magnetic attraction component 51a is close to the slide rail mechanism 40a; when at least one of the magnet 25 and the magnetic conductive sheet 38 is close to the slide rail mechanism 40b, the magnetic attraction force generated by the magnetic attraction component 51b is close to the slide rail mechanism 40b, that is, the magnetic attraction force generated by each magnetic attraction component 51 is close to the slide rail mechanism 40. The magnetic attraction force under this structure can act well on the lens carrier 21, so that the lens carrier 21 is well abutted against the slide rail mechanism 40.

[0156] In some embodiments, the magnet 22 may be a magnet for generating a driving force in the z direction, based on which the motor further includes a driving coil 34 for generating a driving force in the z direction, and the motor includes a circuit board 34b and a driving chip 34b corresponding to the driving coil 34, and the driving coil 34 and the driving chip 34b are both electrically connected to the circuit board 34b. In this embodiment, the magnet 22 is disposed on the lens carrier 21, the magnetic conductive sheet 32 ​​is disposed on the frame 31, and the driving coil 34, the current plate 34a and the driving chip 34b are disposed on the frame 31.

[0157] Fig.10The positions of the driving coil 34 and the driving chip 34b not shown in the figure and the connection relationship with other components are the same as those described above. Figure 7 Similar, no further elaboration.

[0158] In embodiments where the motor can also implement an OIS function, in some embodiments, reference Fig.10 The motor may further include a magnet 37 disposed on the frame 31 and a driving coil 73 disposed on the base 71. The driving coil 73 and the magnet 37 generate a driving force in the x direction, which enables the frame 31 to drive the lens carrier 21 to move along the x direction to realize the OIS anti-shake function.

[0159] In conjunction with the embodiment of the magnetic conductive sheet 38 as the magnetic attraction component 51b, the magnetic conductive sheet 38 in the magnetic attraction component 51b is arranged on the frame 31, and the magnet 25 of the magnetic attraction component 51b is arranged on the lens carrier 21. Compared with the magnet 37, the magnetic conductive sheet 38 is arranged closer to the frame 31 or the magnet 25, so that the magnetic conductive sheet 38 can have a better adsorption effect with the magnet 25 to generate magnetic attraction, and the magnetic conductive sheet 38 can also adsorb the magnet 37 on the frame 31, and it is not easy to fall off the frame 31. In addition, the magnetic conductive sheet 38 can also serve as an effective means to reduce the magnetic leakage of the magnet, ultimately strengthening the magnetic field strength and improving the driving force of the motor; moreover, the magnetic conductive sheet 38 can serve as a support member of the frame 31, improve the strength of the frame 31, and is not easy to deform.

[0160] In the above embodiment, a circuit board 73 a and a driving chip 73 b corresponding to the driving coil 73 are further disposed on the base 71 , and the driving coil 73 and the driving chip 73 a are both electrically connected to the circuit board 73 b.

[0161] for Fig.10 The positions of the driving coil 73 and the driving chip 73b not shown in the figure and their connection relationship with other components are the same as those described above. Figure 7 Similarly, please refer to the relevant description above and will not go into details here.

[0162] It can be understood that in a motor having both AF function and anti-shake function, the motor itself already has a magnet 37 for generating the x-direction and a magnetic conductive sheet 38 for adsorbing the magnet 37 on the frame 31. By utilizing the magnetic conductive sheet 38 already in the motor to cooperate with the magnet 25 arranged on the lens carrier 21 to generate magnetic attraction, since there is no need to add an additional magnetic conductive sheet, it can not only reduce the space occupied but also save costs.

[0163] In the embodiment where the motor realizes the OIS function, refer to Fig.10The motor also includes a magnet 33 arranged on the frame 31 and a driving coil 72 arranged on the base 71. A driving force in the y direction is generated between the driving coil 72 and the magnet 33, so that the frame 31 can drive the lens carrier 21 to move along the y direction to realize the OIS anti-shake function.

[0164] A circuit board 72 a and a driving chip 72 b corresponding to the driving coil 72 are disposed on the base 71 . The driving coil 72 and the driving chip 72 b are both electrically connected to the circuit board 72 a .

[0165] for Fig.10 The position of the magnet 33 not shown in the figure and the connection relationship with other components are the same as those described above. Figure 7 Similarly, please refer to the relevant description above and will not go into details here.

[0166] Based on the first magnet, the first magnetic conductive sheet, the second magnet, the second magnetic conductive sheet, the first drive coil, the third drive coil and the third magnetic conductive sheet defined above. Figures 10 to 12 In the structure, the first magnet may be magnet 22, the first magnetic conductive sheet may be magnetic conductive sheet 32, the second magnet may be magnet 35, the second magnetic conductive sheet may be magnetic conductive sheet 38, or the second magnet may be magnet 37, the second magnetic conductive sheet may be a new magnetic conductive sheet (not shown in the figure) arranged on the lens carrier 21, the first drive coil may be drive coil 34, the third magnetic conductive sheet may be magnetic conductive sheet 23, and the third drive coil may be drive coil 73.

[0167] As described above, in an embodiment where the motor also has an anti-shake function, a magnetic conductive sheet or magnet in a set of magnetic components 51 (such as magnetic component 51b) can utilize the magnetic conductive sheet or magnet used for anti-shake in the motor itself to reduce space occupancy and save costs.

[0168] From another perspective, regardless of whether the motor has an anti-shake function, the two magnets (the first magnet and the second magnet) in the two sets of magnetic suction components 21 can be independent magnets for AF. Based on this, the two magnets can be configured with corresponding drive coils at the same time, and each drive coil and the corresponding magnet cooperate to generate a driving force in the z direction to realize the AF function of the motor. This structure realizes dual drive of AF and effectively improves the driving force of AF.

[0169] That is, one magnetic attraction component 51 includes a first magnet and a first magnetic conductive sheet, and the other magnetic attraction component 51 includes a second magnet and a second magnetic conductive sheet, one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier 21, the other of the first magnet and the first magnetic conductive sheet is arranged on the frame 31, one of the second magnet and the second magnetic conductive sheet is arranged on the lens carrier 21, and the other of the second magnet and the second magnetic conductive sheet is arranged on the frame 31; and the motor also includes a first driving coil and a second driving coil, the first driving coil is arranged corresponding to the first magnet, and the second driving coil is arranged corresponding to the second magnet, the driving force generated between the first driving coil and the first magnet can make the lens carrier 21 move along the z direction, and the driving force generated between the second driving coil and the second magnet can make the lens carrier 21 move along the z direction.

[0170] Fig.13 It is another schematic structural diagram of the motor provided in an embodiment of the present application.

[0171] refer to Fig.13 A set of magnetic attraction components 51 includes a magnet 22 and a magnetic conductive sheet 32 ​​(such as Fig.10 As shown), another group of magnetic attraction components 51 includes a magnet 26 and a second magnetic conductive sheet (not shown in the figure), the driving coil 34 cooperates with the magnet 22 to generate a driving force in the z direction, and the driving coil 39 cooperates with the magnet 26 to generate a driving force in the z direction.

[0172] For ease of description, the entirety of the drive coil 34 and the magnet 22 for generating the drive force in the z direction is recorded as the AF-1 drive assembly, and the entirety of the drive coil 39 and the magnet 26 for generating the drive force in the z direction is recorded as the AF-2 drive assembly. The magnet 22 may be the first magnet mentioned above, the magnetic conductive sheet 32 ​​may be the first magnetic conductive sheet, the magnet 26 may be the second magnet, the drive coil 34 may be the first drive coil, and the drive coil 39 may be the second drive coil.

[0173] In the above embodiment, by respectively configuring the first magnet and the second magnet with corresponding first drive coils and second drive coils, the first magnet and the first drive coil as well as the second magnet and the second drive coil can form a driving force in the z direction, thereby effectively improving the driving force used for AF, thereby improving the focusing speed of AF and the clarity of imaging.

[0174] In the above-mentioned embodiment of the motor providing dual driving force for AF, in some embodiments, the first magnet and the second magnet are both disposed on the lens carrier 21, and the first magnetic conductive sheet, the second magnetic conductive sheet, the first driving coil and the second driving coil are both disposed on the frame 31. In this way, the first magnet and the second magnet are disposed on the lens carrier 21, and the first driving coil and the second driving coil are both disposed on the frame 31. This structural design facilitates wiring to facilitate electrical connection of the driving coils.

[0175] In the above-mentioned embodiment where the motor provides dual driving forces for AF, in some embodiments, the first driving coil and the second driving coil may share a driving chip, which can improve the driving force for AF and save costs. In the embodiment where the first driving coil and the second driving coil share a driving chip, the first driving coil and the second driving coil may be designed with the number of coil turns and the resistance by using the additional space occupied to improve the driving force.

[0176] Relevant data indicate that the above embodiment can improve the driving force by about 1.4125 times. Assume that when the motor includes a first driving coil for AF but does not include a second driving coil, the space occupied by the first driving coil is 4*4=16 turns of coil space, and the driving force provided is 16mN. The resistance of one turn of coil is 1Ω, and the resistance of 16 turns of coil is 16Ω in total. When the motor includes a first driving coil and a second driving coil for AF, the resistance needs to be allocated half each, and the space of each driving coil can only occupy an 8Ω coil. Assuming the number of turns is x, then, based on the formula We get x=1.1892, and then based on the formula The ratio of the driving force between the two is 1.4125, that is, when the first driving coil and the second driving coil share a driving chip, the driving force can be increased by about 1.4125 times.

[0177] In order to better improve the driving force of AF, in some other embodiments, the motor further includes a first driving chip and a second driving chip, the first driving chip is electrically connected to the first driving coil, and the second driving chip is electrically connected to the second driving chip. Fig.13 The driving coil 34 is electrically connected to the driving chip 34b, and the driving coil 39 is electrically connected to the driving chip 39b (ie, the second driving coil).

[0178] In this way, by configuring corresponding driving chips for the first driving coil and the second driving coil respectively, each driving chip cooperates with the corresponding driving coil to provide double driving force for AF.

[0179] In the embodiment where the motor has both AF and image stabilization functions, refer to Fig.13AF-1 driving assembly and AF-2 driving assembly are staggered with OIS-x driving assembly and OIS-y driving assembly. The OIS-x driving assembly includes an overall structure including a magnet 37 and a driving coil 73 for generating a driving force in the x direction, and the OIS-y driving assembly includes an overall structure including a magnet 33 and a driving coil 72 for generating a driving force in the y direction.

[0180] It should be understood that the above Figures 10 to 13 The structure of a motor shown is for illustrative purposes only and should not be construed as limiting the embodiments of the present application.

[0181] In the embodiment where the motor does not need to realize the anti-shake function, that is, the motor of the present application is simply used to realize the AF function, or in other words, the motor of the present application is an AF motor independent of the anti-shake function, illustratively, the motor may not need the base assembly 70, and the frame assembly 30 may be used to realize the related functions of the base assembly 70. For example, the housing 10 is connected to the frame 31, and a support structure is formed at the bottom of the frame 31 away from the lens to support the lens carrier 21.

[0182] Exemplarily, the positions of the magnet 22 and the magnetic conductive sheet 32 ​​are interchanged, that is, the magnet 22 is arranged on the frame 31, and the magnetic conductive sheet 32 ​​is arranged on the lens carrier 21. Exemplarily, the positions of the magnet 25 and the magnetic conductive sheet 38 are interchanged, that is, the magnet 25 is arranged on the frame 31, and the magnetic conductive sheet 37 is arranged on the lens carrier 21.

[0183] In the embodiment where the motor has both AF function and anti-shake function, in the embodiment where the motor itself includes a magnetic conductive sheet 36, a magnet 33 for generating a y-direction driving force, and a driving coil 72, illustratively, the lens carrier 21 may not be provided with a magnetic conductive sheet 24, but a new magnet may be provided on the lens carrier 21, and the new magnet and the magnetic conductive sheet 36 may form a magnetic attraction component 51b to generate a magnetic attraction force. In this embodiment, the new magnet may be the second magnet mentioned above, the magnetic conductive sheet 36 may be the second magnetic conductive sheet mentioned above, the second magnet is provided on the lens carrier 21, and the second magnetic conductive sheet is provided on the frame 31.

[0184] In the embodiment in which the motor has both AF function and anti-shake function, in the embodiment in which the motor itself includes magnet 37 and drive coil 73, illustratively, magnet 25 may not be provided on the lens carrier, but a new magnetic conductive sheet may be provided on the lens carrier 21, and the new magnetic conductive sheet and magnet 37 may form a magnetic attraction component 51b to generate magnetic attraction force. In this embodiment, the new magnetic conductive sheet may be the second magnetic conductive sheet mentioned above, and the magnet 37 may be the second magnet mentioned above. It can be understood that in this embodiment, by utilizing the magnet 37 that can generate x-direction in the motor itself to cooperate with the new magnetic conductive sheet provided on the lens carrier 21 to generate magnetic attraction force, since no additional magnet is needed, not only the space occupied is reduced but also the cost can be saved.

[0185] Figures 14 to 18 The figure shows a schematic diagram of the relevant structure of the motor in which the magnetic attraction mechanism includes a magnetic attraction component. Figures 14 to 18 , the structure of the motor in this case is described in detail.

[0186] In addition, the similar design of the motor in the case where the two magnetic suction components 51 are respectively arranged on both sides of the lens carrier 21 or the frame 31 is only briefly described, and the difference between the motor in this case and the above motor is described in detail.

[0187] Fig.14 The embodiment of this application provides Figure 2 An exploded diagram of another structure of the motor. Fig.15 It is a schematic structural diagram of a motor provided in an embodiment of the present application with the housing and the slide rail mechanism removed. Fig.16 It is a schematic structural diagram of a motor with the outer casing removed provided in an embodiment of the present application.

[0188] In this embodiment, the magnetic attraction mechanism 50 is located on one side of the lens carrier 21, and includes a magnetic attraction component. The magnetic attraction force generated by the magnetic attraction mechanism 50 is in the same direction as the opening direction of a first opening groove 61 of a guide groove 60. The magnetic attraction mechanism 50 includes a first magnet and a first magnetic conductive sheet. One of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier 21, and the other of the first magnet and the first magnetic conductive sheet is arranged on the frame 31; and a limiting structure 311 is formed on the frame 31, which is located on two sides opposite to the lens carrier 21 with the magnetic attraction mechanism 50, respectively, for limiting the shaking of the lens carrier 21 toward the direction close to the magnetic attraction mechanism 50.

[0189] refer to Figures 14 to 16 The magnetic attraction mechanism 50 is located on one side of the lens carrier 21. The magnetic attraction force F1 generated by the magnetic attraction mechanism 50 is in the same direction as the opening direction of the first opening groove 61 of the guide groove 60a (eg Fig.15 As shown in FIG. 5 , the magnetic attraction mechanism 50 includes a magnet 22 and a magnetic conductive sheet 32. Fig.14), the magnet 22 is disposed on the lens carrier 21, and the magnetic conductive sheet 32 ​​is disposed on the frame 31. In another example (not shown in the figure), the magnetic conductive sheet 32 ​​is disposed on the lens carrier 21, and the magnet 22 is disposed on the frame 31. Here, the magnet 22 may be the first magnet mentioned above, and the magnetic conductive sheet 32 ​​may be the first magnetic conductive sheet.

[0190] A limiting structure 311 is formed on the frame 31 and is located on the other side of the lens carrier 21. The limiting structure 311 and the magnetic attraction mechanism 50 are respectively located on the opposite sides of the lens carrier 21. The limiting structure 311 can provide the lens carrier 21 with a force in the opposite direction to the magnetic attraction force F1 to limit the lens carrier 21 from shaking in the direction close to the magnetic attraction mechanism 50.

[0191] In the above embodiment, in the case of the unilateral magnetic attraction force F1 generated by the magnetic attraction mechanism 50, in order to avoid the problem that the lens carrier 21 moves toward the direction close to the magnetic attraction mechanism 50 due to the unilateral magnetic attraction, thereby causing the lens carrier 21 to have poor contact with the slide rail mechanism 40, a limiting structure 311 is provided on the side opposite to the magnetic attraction mechanism 50, so that the lens carrier 21 can be limited from shaking toward the direction close to the magnetic attraction mechanism 50, and the slide rail mechanism 40 and the lens carrier 21 can be kept in close contact as much as possible, so that the lens carrier 21 abuts against the slide rail mechanism 40 as much as possible. In addition, since the force of the unilateral magnetic attraction is simple, only a simple force analysis is required, and no torque analysis is required, which simplifies the force analysis process and thus simplifies the design.

[0192] In some embodiments, reference Fig.16 The limiting structure 311 is arranged adjacent to the slide rail mechanism 40b.

[0193] If the length of the frame 31 in the x direction is used as a reference, the adjacent arrangement can be made with the midpoint of the length of the frame 31 in the x direction as a reference point. When the limiting structure 311 is arranged on the side of the midpoint close to the slide rail mechanism 40b, it can be considered that the limiting structure 311 is arranged adjacent to the slide rail mechanism 40b. It can be understood that the magnetic attraction mechanism 50 is adapted to the guide groove 60a, and can well act on the slide mechanism 40a accommodated in the guide groove 60a. The limiting structure 311 is arranged opposite to the magnetic attraction mechanism 50, and the limiting structure 311 can act on the slide mechanism 40b. When the limiting structure 311 is arranged adjacent to the slide mechanism 40b, the force provided by the limiting structure 311 in the opposite direction to the magnetic attraction force can well act on the slide rail mechanism 40b and perform the limiting. Combined with the magnetic attraction force, the close contact between the two slide rail mechanisms 40 and the lens carrier 21 can be better maintained, so that the lens carrier 21 is better abutted against the slide rail mechanism 40, and the structure is more stable.

[0194] Fig.17 It is a schematic structural diagram of the lens carrier provided in an embodiment of the present application. Fig.18It is a schematic structural diagram of the framework provided in the embodiment of the present application.

[0195] refer to Fig.18 A slot 211 is formed on the lens carrier 21 adjacent to the slide rail mechanism 40b accommodated in the guide groove 60b, the slot 211 is connected to the first opening groove 61 of the guide groove 60b, the extension direction (x direction) of the slot 211 is perpendicular to the opening direction (y direction) of the first opening groove 61; and a limiting structure 311 is inserted into the slot 211, and a second opening groove 62 of the guide groove 60b is formed on the limiting structure 311.

[0196] That is to say, the limiting structure 311 and the lens carrier 21 jointly form a guide groove 40b, and the slot 211 for inserting the limiting structure 311 is connected to the first opening groove 61 of the guide groove 60b. The structural layout of this integration of the guide groove 60b and the limiting structure 311 is compact and avoids occupying a large space; moreover, the force provided by the limiting structure 311 in the opposite direction to the magnetic attraction force can better act on the slide rail mechanism 40b and perform limiting. Combined with the magnetic attraction force, it can better maintain the close contact between the two slide rail mechanisms 40 and the lens carrier 21, so that the lens carrier 21 is better abutted against the slide rail mechanism 40, and the structure is more stable.

[0197] It should be understood that in the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connection", "fixed connection", "contact" and the like should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above-mentioned various terms in the embodiments of the present application can be understood according to specific circumstances.

[0198] Exemplarily, for "connection", it can be various connection methods such as fixed connection, rotating connection, flexible connection, sliding connection, one-piece molding, electrical connection, contact connection, etc.; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal connection between two elements or the interaction relationship between two elements.

[0199] Exemplarily, for "fixed connection", one element can be directly or indirectly fixedly connected to another element; the fixed connection can include mechanical connection, welding, bonding or integrated molding, among which the mechanical connection can include riveting, bolting, threaded connection, key connection, snap connection, lock connection, plug-in and other methods, and the bonding can include adhesive bonding and solvent bonding and other methods.

[0200] Exemplarily, the interpretation of "contact" can be direct or indirect contact between one element and another element; in addition, the contact between the two elements described in the embodiments of the present application can be understood as contact within the allowable range of installation error, and there may be a very small gap caused by the installation error.

[0201] It should also be understood that the “parallel” or “perpendicular” described in the embodiments of the present application may be understood as “approximately parallel” or “approximately perpendicular”.

[0202] It should also be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0203] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0204] It should also be understood that the terms "inside", "outside", "top", "bottom", "front", "back", etc., indicating the orientation or positional relationship (if any) are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application 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 a limitation on the present application.

[0205] In the embodiments of the present application, "at least one" means one or more, and "more than one" means two or more. "At least part of an element" means part or all of an element. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B may be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0206] It should be noted that, in the embodiments of the present application, the same figure mark is used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0207] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims. In short, the above is only a preferred embodiment of the technical solution of the present application, and is not used to limit the protection scope of the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A motor, characterized in that: include: A housing, a lens carrier contained in the housing, a frame, a magnetic attraction mechanism and two slide rail mechanisms, wherein the lens carrier is used to install a lens, wherein: The two slide rail mechanisms are diagonally arranged between the frame and the lens carrier on a first plane, and are used to provide a sliding support surface for the movement of the lens carrier along the z direction, wherein the first plane is perpendicular to the z direction, and the z direction is parallel to the optical axis direction of the lens; A part of the magnetic attraction mechanism is arranged on the lens carrier, and another part is arranged on the frame. The magnetic attraction force generated by the magnetic attraction mechanism is used to abut the lens carrier against the slide rail mechanism.

2. The motor according to claim 1, characterized in that The slide rail mechanism includes a guide column.

3. The motor according to claim 1 or 2, characterized in that: Two guide grooves are formed between the lens carrier and the frame, the two guide grooves correspond to the two slide rail mechanisms, one guide groove accommodates the corresponding slide rail mechanism, and the guide groove includes a first opening groove arranged on the lens carrier and a second opening groove arranged on the frame.

4. The motor according to claim 3, characterized in that The magnetic attraction mechanism includes two magnetic attraction components, the two magnetic attraction components are respectively located on both sides of the lens carrier or the frame, the two magnetic attraction components are respectively adapted to the two guide grooves, and the direction of the magnetic attraction force generated by the magnetic attraction components is in the same direction as the opening direction of the first opening groove of the adapted guide groove; wherein, One of the magnetic attraction components includes a first magnet and a first magnetic conductive sheet arranged corresponding to the first magnet, and the other magnetic attraction component includes a second magnet and a second magnetic conductive sheet arranged corresponding to the second magnet, one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier, and the other of the first magnet and the first magnetic conductive sheet is arranged on the frame, one of the second magnet and the second magnetic conductive sheet is arranged on the lens carrier, and the other of the second magnet and the second magnetic conductive sheet is arranged on the frame.

5. The motor according to claim 4, characterized in that The two magnetic suction components are respectively located on opposite sides of the lens carrier or the frame, at least one of the first magnet and the first magnetic conductive sheet is close to one of the slide rail mechanisms, and at least one of the second magnet and the second magnetic conductive sheet is close to the other slide rail mechanism.

6. The motor according to claim 4, characterized in that The two magnetic suction components are respectively located on two adjacent sides of the lens carrier or the frame.

7. The motor according to claim 6, characterized in that At least one of the first magnet and the first magnetic conductive sheet is close to one of the slide rail mechanisms, and at least one of the second magnet and the second magnetic conductive sheet is close to the other slide rail mechanism.

8. The motor according to claim 6 or 7, characterized in that: The motor also includes a first drive coil and a second drive coil. The driving force generated between the first drive coil and the first magnet can enable the lens carrier to move along the z direction. The driving force generated between the second drive coil and the second magnet can enable the lens carrier to move along the z direction.

9. The motor according to claim 8, characterized in that The first magnet and the second magnet are both arranged on the lens carrier, and the first magnetic conductive sheet, the second magnetic conductive sheet, the first driving coil and the second driving coil are all arranged on the frame.

10. The motor according to claim 8 or 9, characterized in that: The motor further includes a first driving chip and a second driving chip, wherein the first driving chip is electrically connected to the first driving coil, and the second driving chip is electrically connected to the second driving chip.

11. The motor according to any one of claims 5 to 7, characterized in that The second magnet is arranged on the frame, and the second magnetic conductive sheet is arranged on the lens carrier; and, The motor further includes a third driving coil disposed on the frame, and the driving force generated between the third driving coil and the second magnet enables the frame to drive the lens carrier to move along a first direction, wherein the first direction is perpendicular to the z direction.

12. The motor according to claim 3, characterized in that The two guide grooves include a first guide groove and a second guide groove, the two slide rail mechanisms include a first slide rail mechanism and a second slide rail mechanism, the first guide groove accommodates the first slide rail mechanism, and the second guide groove accommodates the second slide rail mechanism; The magnetic attraction mechanism is located at one side of the lens carrier, the magnetic attraction force generated by the magnetic attraction mechanism is in the same direction as the opening direction of the first opening slot of the first guide slot, the magnetic attraction mechanism comprises a first magnet and a first magnetic conductive sheet, one of the first magnet and the first magnetic conductive sheet is arranged on the lens carrier, and the other of the first magnet and the first magnetic conductive sheet is arranged on the frame; and, A limiting structure is formed on the frame and is located on two sides of the lens carrier opposite to the magnetic attraction mechanism, respectively, for limiting the lens carrier from shaking in a direction close to the magnetic attraction mechanism.

13. The motor according to claim 12, characterized in that The limiting structure is arranged adjacent to the second slide rail mechanism.

14. The motor according to claim 13, characterized in that A slot is formed on the lens carrier adjacent to the second slide rail mechanism, the slot is connected to the first opening slot of the second guide slot, and the extension direction of the slot is perpendicular to the opening direction of the first opening slot; and the limiting structure is inserted into the slot, and the second opening slot of the second guide slot is formed on the limiting structure.

15. The motor according to any one of claims 4 to 7 and 11 to 14, characterized in that: The first magnet is disposed on the lens carrier; and The motor further includes a first driving coil disposed on the frame, wherein the first driving coil is disposed on the frame, and a driving force generated between the first driving coil and the first magnet can enable the lens carrier to move along the z direction.

16. The motor according to claim 15, characterized in that The motor also includes a third magnetic conductive sheet disposed on the lens carrier, which is used to adsorb the first magnet on the lens carrier, and the third magnetic conductive sheet and the first magnetic conductive sheet are respectively located on both sides of the first magnet.

17. A camera module, characterized in that: The invention comprises a lens and a motor as claimed in any one of claims 1 to 16.

18. An electronic device, characterized in that: Comprising the camera module as described in claim 17.

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