Motor, camera module and electronic device

Abstract

The application provides a motor, a camera module and an electronic device. The motor comprises a fixed base, a moving platform, a driving assembly and a self-locking assembly; the moving platform is connected to the fixed base, the moving platform is used for carrying an optical element and driving the optical element to move, and the fixed base is provided with a plurality of pin holes; the driving assembly connects the moving platform and the fixed base and is used for driving the moving platform to move relative to the fixed base; the self-locking assembly is installed on the moving platform, and the self-locking assembly comprises a magnetic driving piece, a pin shaft and an extended magnetic attraction piece; wherein the magnetic driving piece is used for driving the pin shaft to extend relative to the moving platform and to be inserted into the pin hole, so as to lock the moving platform and the fixed base, and the extended magnetic attraction piece is used for locking the pin shaft in the pin hole. The motor provided by the application can realize stable locking of the moving platform and the fixed base by inserting the pin shaft into the pin hole of the fixed base.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shooting devices, in particular to a motor, a camera module and an electronic device. BACKGROUND

[0002] In recent years, with the development of optical imaging technology, people have higher and higher requirements for the camera function of portable electronic devices, and require the camera module configured by the electronic device to be able to realize shooting of different focal lengths, such as long-focus shooting and macro shooting.

[0003] Generally, the camera module realizes the switching of different focal length shooting modes by driving the optical element to move through the motor. However, at present, the motor has no self-locking capability or poor self-locking capability, resulting in poor reliability and easy to cause impact risk in different focal length shooting modes. SUMMARY

[0004] The present application provides a motor, a camera module and an electronic device. The motor includes a fixed base, a moving platform, a driving assembly and a self-locking assembly. The self-locking assembly is installed on the moving platform, and the self-locking assembly can realize stable locking of the moving platform and the fixed base by inserting the pin shaft into the pin hole of the fixed base.

[0005] In the first aspect, the present application provides a motor. The motor includes a fixed base, a moving platform, a driving assembly and a self-locking assembly. The moving platform is connected to the fixed base, and the moving platform is used to carry an optical element and drive the optical element to move relative to the fixed base. The fixed base is provided with a plurality of pin holes, and the plurality of pin holes are arranged along the movement direction of the moving platform. The motor has a light inlet hole, and the axial direction of the light inlet hole intersects with the movement direction of the moving platform. The driving assembly is connected to the moving platform and the fixed base, and is used to drive the moving platform to move relative to the fixed base. The self-locking assembly is installed on the moving platform, and the self-locking assembly includes a magnetic drive, a pin shaft and an extended magnetic attraction piece. The magnetic drive is used to drive the pin shaft to extend relative to the moving platform and insert into the pin hole to lock the moving platform and the fixed base. The extended magnetic attraction piece is used to lock the pin shaft in the pin hole.

[0006] In the present application, the extended magnetic attraction piece can magnetically attract the magnet after the pin shaft extends, so that the pin shaft can remain in the state of being inserted into the pin hole, thereby improving the stability of locking the moving platform and the fixed base. In addition, although the coil no longer generates a magnetic thrust to push the pin shaft after the coil of the magnetic drive is powered off, the pin shaft can still remain inserted into the pin hole due to the magnetic attraction of the extended magnetic attraction piece to the magnet, which is beneficial to save energy. In addition, when the magnetic drive drives the pin shaft to extend close to the extension limit position of the pin shaft, the locking of the pin shaft can be completed by the extended magnetic attraction piece through the magnetic attraction of the magnet, thereby assisting the locking of the pin shaft at the extension limit position.

[0007] In some possible implementation manners, the magnetic driver is further configured to drive the pin shaft to retract relative to the moving platform to disengage the pin hole to unlock the moving platform and the fixed base.

[0008] In the implementation manners, the magnetic driver is configured to drive the pin shaft to extend and retract, so that the locking and unlocking of the moving platform and the fixed base are fast.

[0009] In some possible implementation manners, the moving platform has a bearing surface, the bearing surface is opposite to the bottom plate of the fixed base, and the bearing surface is inclined relative to the bottom plate of the fixed base, and the bearing surface is configured to bear the optical element.

[0010] In the implementation manners, the optical element needs to change the direction of the light rays incident through the through hole to reflect the incident light rays to the image sensor, so the optical element needs to be provided with a reflection surface inclined relative to the bottom plate of the fixed base. The moving platform is configured to be profiled according to the optical element to design the bearing surface with the inclined optical element mounted thereon, and the bearing surface is configured to correspond to the reflection surface of the optical element, so that the mounting stability of the optical element is improved. In addition, the optical element is mounted on the bearing surface with the inclined bearing surface to be arranged in the gap between the optical element and the fixed base, so that the space utilization of the motor is improved.

[0011] In the implementation manners, the moving platform has a receiving space between the bearing surface and the bottom plate of the fixed base, and the receiving space is configured to receive the self-locking assembly.

[0012] In the implementation manners, the receiving space is arranged in the part of the moving platform between the bearing surface and the fixed base, so that the space utilization of the moving platform is improved, the self-locking assembly is received in the receiving space of the moving platform, and the size of the motor is compressed, which is beneficial to the thin design of the motor. In addition, since the self-locking assembly moves together with the moving platform, the self-locking assembly is mounted in the internal space of the moving platform, so that the stability of the self-locking assembly moving together with the moving platform is improved.

[0013] In the implementation manners, the moving platform can have a reinforcing rib in the internal space of the moving platform to divide the internal space of the moving platform into two receiving spaces to receive two self-locking assemblies respectively.

[0014] In the implementation manners, the reinforcing rib not only strengthens the structural strength of the moving platform, but also separates the two self-locking assemblies to reduce the interference between the two self-locking assemblies.

[0015] In some possible implementation manners, the driving assembly and the pin hole are located on different sides of the moving platform.

[0016] In the present implementation, by arranging the pin hole and the driving assembly on different sides of the moving platform, the extension of the pin shaft in the self-locking assembly can be prevented from interfering with the installation space of the driving assembly. In addition, the size of the moving platform on one side can be prevented from being excessively large due to too many components arranged on one side of the moving platform, and the space utilization can be improved.

[0017] In some possible implementations, the driving assembly includes a driving coil and a driving magnet, one of the driving coil and the driving magnet is connected to the fixed base, and the other is connected to the moving platform. The magnetic pole surface of the driving magnet is arranged non-perpendicularly to the movement direction of the pin shaft.

[0018] In the present implementation, by arranging the magnetic pole surface of the driving magnet, the magnetic field direction of the driving magnet can be arranged to intersect the movement direction of the pin shaft, so that the magnetic interference direction of the driving magnet on the magnets in the magnetic driving part intersects the movement direction of the pin shaft driven by the magnets, the magnetic interference of the magnetic field of the driving magnet on the magnetic driving part can be reduced, and the influence of the extension and retraction of the pin shaft can be reduced, so as to reduce the interference with the locking effect of the moving platform and the fixed base.

[0019] In the present implementation, by arranging the magnetic pole surface of the driving magnet, the magnetic field direction of the driving magnet can be arranged to intersect the movement direction of the pin shaft, so that the magnetic interference direction of the driving magnet on the magnets in the magnetic driving part intersects the movement direction of the pin shaft driven by the magnets, the magnetic interference of the magnetic field of the driving magnet on the magnetic driving part can be reduced, and the influence of the extension and retraction of the pin shaft can be reduced, so as to reduce the interference with the locking effect of the moving platform and the fixed base.

[0020] In some possible implementations, the motor further includes a detection assembly, the detection assembly is arranged to extend along the movement direction of the moving platform relative to the fixed base, and the detection assembly is configured to detect the position of the fixed base relative to the moving platform.

[0021] In the present implementation, by arranging the detection assembly to extend along the movement direction of the moving platform relative to the fixed base, the detection assembly can detect the position of the moving platform in the entire movement path of the moving platform, and the position detection accuracy of the moving platform can be improved, so as to improve the alignment accuracy of the pin shaft to the pin hole.

[0022] In some possible implementations, the detection assembly includes a tunnel magnetoresistance and a magnetic grid, the tunnel magnetoresistance is arranged on the moving platform, the magnetic grid is arranged on the fixed base, the magnetic grid is arranged to extend along the movement direction of the moving platform relative to the fixed base, and the tunnel magnetoresistance and the magnetic grid are arranged opposite to each other.

[0023] In the present implementation, the tunneling magnetoresistance can move along with the moving platform, and during the full stroke of the tunneling magnetoresistance, the part of the magnetic grid opposite to the tunneling magnetoresistance is arranged, so that the position of the tunneling magnetoresistance can be obtained through the part of the magnetic grid opposite to the tunneling magnetoresistance, and then the position of the moving platform relative to the fixed base is determined, so as to realize the position detection and the alignment of the pin shaft and the pin hole.

[0024] In the present implementation, the self-locking assembly is arranged apart from the magnetic grid along the movement direction of the moving platform relative to the fixed base.

[0025] In the present implementation, the self-locking assembly is arranged apart from the magnetic grid along the movement direction of the moving platform relative to the fixed base, which can reduce the magnetic interference of the magnetic grid on the magnetic drive, thereby reducing the influence on the extension and retraction of the pin shaft, and reducing the interference with the locking effect of the moving platform and the fixed base.

[0026] In the present implementation, the self-locking assembly is arranged apart from the magnetic grid along the movement direction of the moving platform relative to the fixed base.

[0027] In the present implementation, the self-locking assembly is arranged apart from the magnetic grid along the movement direction of the moving platform relative to the fixed base, which can reduce the magnetic interference of the magnetic grid on the magnetic drive, thereby reducing the influence on the extension and retraction of the pin shaft, and reducing the interference with the locking effect of the moving platform and the fixed base.

[0028] In some possible implementations, the self-locking assembly is configured to receive a control instruction and drive the pin shaft to retract to disengage from the pin hole, the driving assembly is configured to drive the moving platform to move relative to the fixed base after the pin shaft disengages from the pin hole, and the detection assembly is configured to detect position information of the fixed base during movement of the moving platform relative to the fixed base, and the position information of the fixed base is used to assist alignment of the pin shaft and the pin hole. After the pin shaft and the pin hole are aligned, the self-locking assembly is configured to drive the pin shaft to extend to insert into the pin hole, and the driving assembly is configured to stop driving the moving platform after the pin shaft is inserted into the pin hole.

[0029] In the present implementation, the self-locking assembly, the driving assembly and the detection assembly cooperate to realize the orderly unlocking and locking of the moving platform and the fixed base, so as to orderly realize the lens switching of the camera module in the electronic device.

[0030] In some possible implementations, the distance between the two pin holes located at the two ends of the plurality of pin holes along the movement direction of the moving platform relative to the fixed base is greater than or equal to 9000 μm.

[0031] In the present implementation, the motor can drive the optical element to move a long distance through the moving platform, which provides sufficient layout space for lenses with different focal lengths, reduces or even avoids the structural layout interference between lenses with different focal lengths, and is conducive to realizing the switching of lenses with different focal lengths.

[0032] In some possible implementation manners, the motion platform has a load capacity greater than or equal to 2000 mg.

[0033] In the implementation manner, the load capacity of the motion platform refers to the weight of the optical element that can be carried, that is, the motion platform provided in the application can drive the optical element with a weight greater than or equal to 2000 mg to move relative to the fixed base, to realize super-heavy load movement.

[0034] In some possible implementation manners, the magnetic driving member includes a coil and a magnet, and the extending magnetic attraction member is located on a side of the magnet facing the pin hole. The coil is fixed to the motion platform, and the magnet is fixedly connected to the pin shaft. The coil is used to drive the magnet to drive the pin shaft to extend by passing a first current, and the coil is also used to drive the magnet to drive the pin shaft to retract by passing a second current. The current direction of the second current is opposite to that of the first current.

[0035] In the implementation manner, the extending and retracting of the pin shaft can be realized by energizing and reverse energizing the coil, so that the locking and unlocking of the motion platform and the fixed base are fast. In addition, by arranging the coil to be fixed and the magnet to move relative to the coil, that is, the design of fixed coil and moving magnet, the circuit connection of the coil is facilitated, the wire harness connection of the coil is avoided from being pulled, and the stability of the coil driving the magnet is improved.

[0036] In some possible implementation manners, the magnetic driving member includes a coil and a magnet, and the extending magnetic attraction member is located on a side of the magnet facing the pin hole. The coil is fixed to the motion platform, and the magnet is fixedly connected to the pin shaft. The coil is annular, and the magnet is coaxially arranged with the coil. When the pin shaft is in the retracted state, the magnet has a portion away from the extending magnetic attraction member and located inside the coil, and the magnet has a portion close to the extending magnetic attraction member and exposed from the coil. And / or, when the pin shaft is in the extended state, the magnet has a portion away from the extending magnetic attraction member and located inside the coil.

[0037] In the implementation manner, the magnetic driving member has a barrel structure, to realize the design of the dynamic magnetic type pop-up driving of the outer coil and the inner magnet. By designing that the magnet is partially exposed from the coil when the pin shaft is in the extended and retracted states, the coupling effect of the coil and the magnet can be improved, so that the effect of the pin shaft extending and retracting is improved, for example, the speed and stability of the coil driving the magnet to drive the pin shaft to extend and retract are improved.

[0038] In some possible implementation manners, the magnetic driving member includes a coil and a magnet, and the extending magnetic attraction member is located on a side of the magnet facing the pin hole. The coil is fixed to the motion platform, and the magnet is fixedly connected to the pin shaft. The coil is annular, and the magnet is coaxially arranged with the coil. When the pin shaft is in the retracted state, the ratio of the length of the portion of the magnet exposed from the coil to the length of the magnet is in the range of 20% to 60%.

[0039] In the present implementation, when the pin shaft is in the retracted state, the ratio of the length of the part of the magnet exposed to the coil to the length of the magnet can be in the range of 20% to 60%, which is conducive to improving the effect of driving the magnet to extend the pin shaft after the coil is energized.

[0040] In some possible implementations, when the pin shaft is in the extended state, the ratio of the length of the part of the magnet exposed to the coil to the length of the magnet is in the range of 50% to 90%.

[0041] In the present implementation, when the pin shaft is in the extended state, the ratio of the length of the part of the magnet exposed to the coil to the length of the magnet can be in the range of 50% to 90%, which is conducive to improving the effect of driving the magnet to retract the pin shaft after the coil is energized.

[0042] In some possible implementations, the ratio of the outer diameter of the magnet to the outer diameter of the coil is in the range of 40% to 90%.

[0043] In the present implementation, the ratio of the outer diameter of the magnet to the outer diameter of the coil can be in the range of 40% to 90%, which can improve the coupling effect of the coil and the magnet, thereby improving the effects of extending and retracting the pin shaft.

[0044] In some possible implementations, the pin shaft is coaxially arranged with the magnet.

[0045] In the present implementation, by coaxially arranging the pin shaft and the magnet, the movement direction of the magnet can be aligned with the axis of the pin shaft when the coil drives the magnet to move, thereby making the movement of the magnet driven by the pin shaft more stable, reducing the resistance of the pin shaft to the magnet, and facilitating efficient extension and retraction of the pin shaft.

[0046] The pin shaft is arranged through the magnet.

[0047] In the present implementation, by arranging the pin shaft through the magnet, the stability of the connection between the pin shaft and the magnet can be improved, the overall rigidity of the magnet and the pin shaft is improved, and the magnet can be arranged close to the center of the pin shaft, the pin shaft can guide the movement of the magnet, and the balance of the movement of the magnet driven by the pin shaft can be improved.

[0048] In some possible implementations, the magnetic pole surface of the magnet is perpendicular to the axis of the pin shaft, the coil is arranged on one side of the magnetic pole surface of the magnet in a spaced manner, the winding plane of the coil is parallel to the magnetic pole surface of the magnet, and the coil is used to generate Lorentz force under the action of the magnet after being energized. Within the movement range of the pin shaft in the extension and retraction, the magnet and the coil are at least partially arranged opposite to each other.

[0049] In the present implementation, the coil can generate Lorentz force under the magnetic field of the magnet after being energized. Since the coil is fixed to the mounting seat, the magnet is pushed out or pulled back to retract under the reaction force of the Lorentz force, so as to realize the extension and retraction of the pin shaft.

[0050] In some possible implementations, the magnetic pole surface of the magnet is perpendicular to the axis of the pin shaft, and the coil is arranged on one side of the magnetic pole surface of the magnet in a spaced manner, and is used to generate magnetic force along the axis of the pin shaft after being energized.

[0051] In the present implementation, the coil can generate a magnetic field on the winding surface facing the magnet after being energized. According to the direction of the energized current, the coil can generate magnetic repulsion force to push the magnet or generate magnetic attraction force to pull the magnet, so as to realize the extension and retraction of the pin shaft.

[0052] In some possible implementations, the self-locking assembly further includes a mounting seat mounted to the motion platform. The mounting seat includes a bottom wall, a first side wall and a second side wall. The bottom wall is mounted to the motion platform. The first side wall and the second side wall are located on the same side of the bottom wall and are connected to opposite ends of the bottom wall. The first side wall is closer to the pin hole than the second side wall. The bottom wall, the first side wall and the second side wall surround to form a mounting space. The mounting space accommodates the magnetic driving piece and at least part of the pin shaft. The coil is fixed to the bottom wall and / or the second side wall.

[0053] In the present implementation, the mounting seat can play a role in stably mounting the magnetic driving piece and the pin shaft, and stably support the extension and retraction of the pin shaft.

[0054] In some possible implementations, the first side wall is provided with a first guide hole, and the second side wall is provided with a second guide hole. The first guide hole and the second guide hole are both in communication with the mounting space. The inner diameter of the first guide hole and the inner diameter of the second guide hole are both greater than the outer diameter of the pin shaft and less than the outer diameter of the magnet. The first guide hole and the second guide hole are used to pass through the pin shaft.

[0055] In the present implementation, the first guide hole and the second guide hole can play a guiding role for the extension and retraction of the pin shaft, thereby improving the stability of the extension and retraction of the pin shaft. By setting the inner diameter of the first guide hole to be less than the outer diameter of the magnet, the first side wall can limit the magnet when the pin shaft is extended, thereby limiting the length of the pin shaft extension, so as to avoid collision with other components. By setting the inner diameter of the second guide hole to be greater than the outer diameter of the magnet, the second side wall can limit the magnet when the pin shaft is retracted, thereby limiting the position of the pin shaft retraction, so as to avoid the pin shaft from falling off through the second limiting hole.

[0056] In some possible implementation manners, the self-locking assembly further includes a balance magnetic attraction element, and the balance magnetic attraction element is arranged on the bottom wall away from the mounting space. The magnetic stone covers at least part of the balance magnetic attraction element during movement.

[0057] In the implementation manner, the balance magnetic attraction element can attract the magnetic stone towards the direction of the bottom wall to prevent the magnetic stone from deviating from the pin shaft during movement, thereby improving the stability of the coil driving the magnetic stone to drive the pin shaft to move, and facilitating the pin shaft to align with the pin hole and accurately insert into the pin hole.

[0058] In some possible implementation manners, the self-locking assembly further includes a retraction magnetic attraction element, and the retraction magnetic attraction element is configured to lock the pin shaft in the movement platform after the pin shaft is retracted and separated from the pin hole.

[0059] In the implementation manner, the retraction magnetic attraction element can attract the magnetic stone after the pin shaft is retracted, so that the pin shaft can be kept in the retracted state stably, thereby avoiding the pin shaft from affecting the relative movement between the movement platform and the fixed base. In addition, after the coil is powered off, the pin shaft can still be kept in the retracted state due to the retraction magnetic attraction element attracting the magnetic stone, which facilitates energy saving. In addition, when the magnetic driving element drives the pin shaft to retract to the retraction limit position of the pin shaft, the retraction magnetic attraction element can complete the locking of the pin shaft by attracting the magnetic stone, thereby assisting the locking of the pin shaft at the retraction limit position. Through the cooperation of the extension magnetic attraction element and the retraction magnetic attraction element, two-stage power-off self-locking of the self-locking assembly can be achieved, thereby achieving energy saving of the self-locking assembly.

[0060] In some possible implementation manners, the self-locking assembly further includes a buffer element, and the buffer element is arranged around the part of the pin shaft inserted into the pin hole.

[0061] In the implementation manner, the buffer element can reduce the impact force when the pin shaft is inserted into the pin hole, thereby protecting the pin shaft and the fixed base and improving the service life of the motor.

[0062] In a second aspect, the present application provides a camera module. The camera module includes a lens and a motor as claimed in any one of claims 1 to 19, and the lens includes an optical element and a lens group, the optical element is mounted on the movement platform of the motor, and the lens group is located on an image side of the optical element.

[0063] In the implementation manner, the optical element is configured to change the direction of light, so that the light entering through the through hole can be reflected to the image sensor. For example, the optical element can include a prism, a mirror or the like.

[0064] In the implementation manner, the optical element can include a prism and a lens, the lens of the optical element can be connected to the prism of the optical element and move together with the prism of the optical element, so that when the optical element moves together with the movement platform, the optical element can change the focal length of the lens.

[0065] The lens of the optical element can be located on the object side of the prism of the optical element, or can be located on the image side of the optical element, or the number of lenses of the optical element is multiple, and part of the lenses are located on the object side of the prism of the optical element, and the other part of the lenses are located on the image side of the prism of the optical element.

[0066] In some possible implementation manners, the lens further includes a first lens group and a second lens group, and the first lens group and the second lens group are arranged in a spaced manner along the movement direction of the movement platform of the motor. The movement platform is configured to drive the optical element to move to a first position to receive light passing through the first lens group. The movement platform is further configured to drive the optical element to move to a second position to receive light passing through the second lens group.

[0067] In the implementation manner, the optical element is driven to move by the movement platform, so that the optical element can form lenses with different focal lengths in combination with different lens groups at different positions. For example, in the first position, the first lens group, the optical element and the lens group can form a first lens with a first focal length; in the second position, the second lens group, the optical element and the lens group can form a second lens with a second focal length. The first focal length is different from the second focal length. Therefore, the movement of the optical element to different positions by the movement platform can realize the switching of different lenses, for example, the switching of the first lens and the second lens. By analogy, by arranging more lens groups, the switching of lenses with more focal lengths can also be realized.

[0068] The first lens group and the second lens group can be mounted on the decorative member or the cover plate and arranged in correspondence with the through holes, so that the movement of the optical element to different through holes can realize the switching of the lenses. For example, the first lens group can be mounted on one through hole, and the second lens group can be mounted on another through hole.

[0069] The first lens group and the second lens group can be the same or different.

[0070] In a third aspect, the present application provides an electronic device. The electronic device includes a housing and a camera module as claimed in claim 1 or 2, and the camera module is mounted on the housing.

[0071] In the implementation manner, the pin shaft is inserted into the pin hole, so that the physical and mechanical type stable self-locking is realized, that is, the self-locking assembly can realize the locking of the movement platform and the fixed base, thereby realizing the self-locking of the motor, and further realizing the stability of the lens, which is beneficial to improve the reliability of the lens when the electronic device is shaken or dropped. For example, when the pin shaft is inserted into the pin hole to realize the locking of the movement platform and the fixed base, the hand shaking and one-meter dropping reliability can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0072] FIG. 1AFigure 1 is a structural schematic diagram of an electronic device according to an embodiment of the present application;

[0073] FIG. 1B Figure 2 is a partial exploded structural schematic diagram of the electronic device shown in Figure 1; FIG. 1A

[0074] FIG. 2A Figure 3 is a partial structural schematic diagram of the electronic device shown in Figure 1, along line A-A; FIG. 1A

[0075] FIG. 2B Figure 4 is a structural layout schematic diagram of a motor in the electronic device shown in Figure 1, in some embodiments; FIG. 2A

[0076] FIG. 3A Figure 5 is a structural schematic diagram of the motor in the electronic device shown in Figure 1, in some embodiments; FIG. 2A

[0077] FIG. 3B Figure 6 is a partial structural exploded schematic diagram of the motor shown in Figure 1, in some embodiments; FIG. 3A

[0078] FIG. 4A Figure 7 is a structural schematic diagram of a fixed base in the motor shown in Figure 1, in some embodiments; FIG. 3A

[0079] FIG. 4B Figure 8 is a partial structural exploded schematic diagram of the fixed base shown in Figure 1, in some embodiments; FIG. 4A

[0080] FIG. 5A Figure 9 is a structural schematic diagram of a moving platform in the motor shown in Figure 1, in some embodiments; FIG. 3A

[0081] FIG. 5B Figure 10 is a structural schematic diagram of the moving platform shown in Figure 1, in another view; FIG. 5A

[0082] FIG. 6 Figure 11 is a structural schematic diagram of a self-locking assembly installed on the moving platform shown in Figure 1; FIG. 5B

[0083] FIG. 7A Figure 12 is a structural schematic diagram of the self-locking assembly in the motor shown in Figure 1, in some embodiments; FIG. 3A

[0084] FIG. 7B Figure 13 is a structural schematic diagram of the self-locking assembly shown in Figure 1, in some embodiments; FIG. 7A

[0085] FIG. 7C Figure 14 is a structural schematic diagram of the self-locking assembly shown in Figure 1, in another view; FIG. 7A ​​​​​​​​​​​​Structure diagram of the self-locking assembly along line B-B in some embodiments;

[0086] FIG. 8 is FIG. 3A Structure diagram of the motor along line C-C in some embodiments when the pin shaft is retracted;

[0087] FIG. 9A is FIG. 3A Structure diagram of the self-locking assembly in some embodiments when the pin shaft is extended;

[0088] FIG. 9B is FIG. 9A Structure diagram of the self-locking assembly along line D-D in some embodiments;

[0089] FIG. 10 is FIG. 3A Structure diagram of the motor along line C-C in some embodiments when the pin shaft is extended;

[0090] FIG. 11A is FIG. 3A Structure diagram of the motor in some embodiments when the moving platform moves to another position;

[0091] FIG. 11B is FIG. 11A Structure diagram of the motor along line E-E in some embodiments when the pin shaft is extended;

[0092] FIG. 12A is FIG. 3A Structure diagram of the motor in some embodiments in which the second part of the fixed base is installed with a magnetic grid;

[0093] FIG. 12B is FIG. 3A Installation diagram of the self-locking assembly, the driving assembly and the detection assembly in some embodiments of the motor;

[0094] FIG. 13 is FIG. 3A Installation diagram of the self-locking assembly, the driving assembly, the detection assembly and the control circuit in some embodiments of the motor;

[0095] FIG. 14 is FIG. 2A Structure layout diagram of the motor in some other embodiments of the electronic device;

[0096] FIG. 15 is FIG. 7A Structure diagram of the self-locking assembly along line B-B in some other embodiments;

[0097] FIG. 16 isFIG. 7A Structure diagram of the self-locking assembly shown in cross section along line B-B in some embodiments. DETAILED DESCRIPTION

[0098] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0099] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through intermediate medium. "Multiple" means at least two.

[0100] The orientation terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side" and the like, are only the directions of the accompanying drawings, therefore, the orientation terms used are for better and clearer illustration and understanding of the embodiments of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0101] In the embodiments of the present application, the relative positional relationship mentioned, such as parallel, vertical, aligned and the like, are all in view of the current process level, and are not absolute strict limitations, and a small amount of deviation is allowed, for example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80 degrees and 100 degrees.

[0102] In the embodiments of the present application, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features.

[0103] Please refer to FIG. 1A and FIG. 1B , FIG. 1A is a structure diagram of the electronic device 1000 in some embodiments provided by the embodiments of the present application; FIG. 1B is FIG. 1A a partially exploded structure diagram of the electronic device 1000 shown.

[0104] In some embodiments, the electronic device 1000 can be a mobile phone, a tablet personal computer, a laptop computer, a smart television, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses, or a VR helmet, etc. devices with camera functions. FIG. 1A In embodiments, the electronic device 1000 is taken as an example of a mobile phone for description, of course, other types of electronic devices 1000 can also adopt similar structures, and the following will not be described in detail.

[0105] It can be understood that, FIG. 1A and FIG. 1B only some components included in the electronic device 1000 are schematically shown, the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 1A and FIG. 1B , the electronic device 1000 can also include more or less components than FIG. 1A and FIG. 1B .

[0106] In some embodiments, the electronic device 1000 can include a camera module 100, a screen 200, and a housing 300. The screen 200 is configured to display images, videos, and the like. The screen 200 can include a light-transmitting panel 2001 and a display screen 2002. The light-transmitting panel 2001 is stacked with the display screen 2002 and fixedly connected with the display screen 2002. The light-transmitting panel 2001 is mainly configured to protect and prevent dust from entering the display screen 2002. The material of the light-transmitting panel 2001 includes, but is not limited to, glass. The display screen 2002 can be a flexible display screen or a rigid display screen. For example, the display screen 2002 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light emitting diode (QLED) display screen, a liquid crystal display (LCD), and the like.

[0107] For example, the housing 300 is configured to protect the internal electronic devices of the electronic device 1000. The housing 300 can include a cover plate 3001, a frame 3002, and a decorative piece 3003. The cover plate 3001 is located on the side of the display screen 2002 away from the light-transmitting panel 2001 and stacked with the light-transmitting panel 2001 and the display screen 2002. The frame 3002 is fixed to the cover plate 3001. For example, the frame 3002 can be fixedly connected to the cover plate 3001 by adhesive. Alternatively, the frame 3002 and the cover plate 3001 can be an integrally formed structure, i.e., the frame 3002 and the cover plate 3001 are an integral structure. The frame 3002 is located between the cover plate 3001 and the light-transmitting panel 2001. The light-transmitting panel 2001 can be fixed to the frame 3002 by adhesive. The light-transmitting panel 2001, the cover plate 3001, and the frame 3002 enclose an internal accommodating space of the electronic device 1000. The internal accommodating space accommodates the display screen 2002. The cover plate 3001 can be made of metal, plastic, glass, or the like. The cover plate 3001 can be a plate body made of a single material or a plate body structure made of multiple materials and multiple plate blocks. The cover plate 3001 is provided with a mounting opening, and the decorative piece 3003 covers and is fixed to the mounting opening.

[0108] For example, camera module 100 is used to capture photos / videos. For example, camera module 100 is mounted within housing 300, located within the internal accommodating space of electronic device 1000. Camera module 100 can be used as a rear-facing camera. For example, the light-incident surface of camera module 100 faces decorative element 3003. Decorative element 3003 is used to protect camera module 100.

[0109] In some embodiments, the decorative element 3003 protrudes from the side of the cover plate 3001 away from the light-transmitting panel 2001. This increases the mounting space for the camera module 100 in the thickness direction of the electronic device 1000. In other embodiments, the decorative element 3003 may be flush with the cover plate 3001 or recessed into the internal accommodating space of the electronic device 1000.

[0110] The decorative element 3003 has a through hole 3004. The through hole 3004 allows light from objects to enter the light-receiving surface of the camera module 100. In some other embodiments, the electronic device 1000 may not include the decorative element 3003. In this case, the cover plate 3001 no longer has a mounting opening, but the through hole 3004 is provided on the cover plate 3001, allowing light from objects to enter the light-receiving surface of the camera module 100.

[0111] In some examples, there can be multiple through holes 3004, and different through holes 3004 can correspond to different lenses. For example, different through holes 3004 correspond to lenses with different focal lengths.

[0112] In other examples, the number of through holes 3004 can be one, and different areas of through holes 3004 can correspond to different lenses. For example, different areas of through holes 3004 correspond to lenses 20 with different focal lengths.

[0113] It should be noted that in the embodiments described below, a lens setting with one through hole 3004 corresponding to one focal length is used for illustration.

[0114] In some embodiments, the camera module 100 can also be used as a front-facing camera. For example, the light-incident surface of the camera module 100 faces the light-transmitting panel 2001. The display screen 2002 is provided with a light-path obstruction hole. This light-path obstruction hole allows light from the scene to pass through the light-transmitting panel 2001 and then enter the light-incident surface of the camera module 100. In some embodiments, the electronic device 1000 may also include one or more other camera modules (not shown in the figures), which are not strictly limited in this application.

[0115] In some embodiments, such as FIG. 1BAs shown, the electronic device 1000 can further include a circuit board 400 and an image processor 500, the circuit board 400 and the image processor 500 are located in the internal accommodation space of the electronic device 1000, the image processor 500 is fixed to the circuit board 400 and electrically connected to the circuit board 400. The image processor 500 is in communication connection with the camera module 100. The image processor 500 is configured to acquire image data from the camera module 100 and process the image data. It can be understood that the communication connection between the camera module 100 and the image processor 500 can include data transmission through electrical connection such as wiring, and can also be achieved through coupling and other means.

[0116] In some embodiments, the electronic device 1000 can further include an analog-to-digital converter (also referred to as an A / D converter, not shown in the figure). The analog-to-digital converter is connected between the camera module 100 and the image processor 500. The analog-to-digital converter is configured to convert the signal generated by the camera module 100 into a digital image signal and transmit it to the image processor 500, and then process the digital image signal through the image processor 500, and finally display the image or video through the screen 200.

[0117] In some embodiments, the electronic device 1000 can further include a memory (not shown in the figure), the memory is in communication connection with the image processor 500, and the image processor 500 processes the image digital signal and then transmits the image to the memory, so that when the image needs to be viewed later, the image can be found in the memory at any time and displayed on the screen 200. In some embodiments, the image processor 500 will also compress the processed image digital signal and store it in the memory to save memory space.

[0118] In other embodiments, the electronic device 1000 can also not include the screen 200.

[0119] It can be understood that, FIG. 1A and FIG. 1B The mounting position of the camera module 100 of the electronic device 1000 shown in the embodiment is only schematic, and the application does not strictly limit the mounting position of the camera module 100. In some other embodiments, the camera module 100 can also be mounted on other positions of the electronic device 1000, for example, the camera module 100 can be mounted on the upper middle or upper right corner of the back of the electronic device 1000. In some other embodiments, the electronic device 1000 can include a terminal body and an auxiliary component that can rotate, move or detach relative to the terminal body, and the camera module 100 can also be arranged on the auxiliary component.

[0120] Please refer to FIG. 2A andFIG. 2B , FIG. 2A is FIG. 1A is a schematic diagram of a partial structure of the electronic device 1000 along line A-A; FIG. 2B is FIG. 2A is a schematic diagram of a structural layout of the motor 10 in the electronic device 1000 in some embodiments.

[0121] In some embodiments, the camera module 100 can include the lens 20 and the motor 10, and the lens 20 can include the optical element 201, the lens group 202, and the image sensor 203. The optical element 201 can be mounted to the motor 10, and the optical element 201, the lens group 202, and the image sensor 203 are arranged along an optical path of the lens 20.

[0122] For example, the motor 10 can include the fixed base 1, the moving platform 2, the driving assembly 3, the self-locking assembly 4, and the detection assembly 5.

[0123] The moving platform 2 can be connected to the fixed base 1, and the moving platform 2 is used to carry the optical element 201. The driving assembly 3 is used to drive the moving platform 2 to move the optical element 201 relative to the fixed base 1. The motor 10 can have a light inlet hole (not shown in the figure), and an axial direction of the light inlet hole intersects with a moving direction of the moving platform 2. At this time, the camera module 100 is a periscopic camera module 100. The number of the through holes 3004 on the decorative piece 3003 is multiple, and the arrangement direction of the multiple through holes 3004 is the same as the moving direction of the moving platform 2.

[0124] In the embodiment, the moving platform 2 can drive the optical element 201 to move relative to the fixed base 1 to change the position of the optical element 201, so as to change the corresponding through hole 3004 of the optical element 201 and the distance between the optical element 201 and the lens group 202, thereby realizing the change of the focal length of the lens of the camera module 100, that is, realizing the switching of the lens, for example, realizing the switching between long-focus shooting and macro shooting.

[0125] The light inlet hole of the motor 10 can be arranged corresponding to the through hole 3004 to allow the light passing through the through hole 3004 to pass through. The light inlet hole of the motor 10 can be an opening, or an unsealed area of the motor 10, as long as it can allow the light passing through the through hole 3004 to pass through.

[0126] The load capacity of the moving platform 2 can be greater than or equal to 2000 mg. In this embodiment, the load capacity of the moving platform 2 refers to the weight of the optical element 201 that can be carried, that is, the moving platform 2 provided in this embodiment can drive the optical element 201 with a weight greater than or equal to 2000 mg to move relative to the fixed base 1 to achieve super heavy load movement. For example, the load capacity of the moving platform 2 can be 2000 mg, or 2500 mg, or 3000 mg, etc.

[0127] It should be noted that the load capacity of the moving platform 2 can be greater than or equal to 2000 mg, which means that the moving platform 2 has a large load capacity and is not limited to the optical element 201 carried by the moving platform 2. Understandably, the moving platform 2 can also carry an optical element 201 with a lighter weight, for example, an optical element 201 with a weight less than 2000 mg.

[0128] The optical element 201 is used to change the direction of light so that the light entering through the through hole 3004 can be reflected to the image sensor 203. For example, the optical element 201 can include a prism, a mirror, etc.

[0129] In some examples, the optical element 201 can include a prism and a lens. The lens of the optical element 201 can be connected to the prism of the optical element 201 and move with the prism of the optical element 201, so that when the optical element 201 moves with the moving platform 2, the focal length of the lens 20 can be changed.

[0130] The lens of the optical element 201 can be located on the object side of the prism of the optical element 201, or on the image side of the prism of the optical element 201, or the number of lenses of the optical element 201 is multiple, part of which is located on the object side of the prism of the optical element 201, and the other part is located on the image side of the prism of the optical element 201.

[0131] It should be noted that by changing the distance between the optical element 201 and the lens group 202, the focal length of the lens 20 can be changed, thereby realizing the switching of the lens 20.

[0132] It should be noted that in this embodiment, the optical element 201 can also be a combination of a mirror and a lens, which is not limited here.

[0133] In other examples, the lens 20 can further include a first lens group 204 and a second lens group 205. The first lens group 204 and the second lens group 205 can be spaced apart along the movement direction of the moving platform 2. The moving platform 2 is used to drive the optical element 201 to move to a first position to receive light passing through the first lens group 204. The moving platform 2 is also used to drive the optical element 201 to move to a second position to receive light passing through the second lens group 205.

[0134] In the embodiment, the optical element 201 is moved by the movement platform 2, so that the optical element 201 can be combined with different lens groups to form different focal length lenses 20 at different positions. For example, at a first position, the first lens group 204, the optical element 201 and the lens group 202 can constitute a first lens with a first focal length; at a second position, the second lens group 205, the optical element 201 and the lens group 202 can constitute a second lens with a second focal length. The first focal length is different from the second focal length. Therefore, the movement of the optical element 201 to different positions by the movement platform 2 can realize the switching of different lenses 20, for example, the switching of the first lens and the second lens. By analogy, by setting more lens groups, the switching of more kinds of lenses 20 with different focal lengths can also be realized.

[0135] The first lens group 204 and the second lens group 205 can be mounted on the decorative part 3003 or the cover plate 3001 and correspond to the through holes 3004, so that the movement of the optical element 201 to different through holes 3004 can realize the switching of the lenses 20. For example, the first lens group 204 can be mounted on one through hole 3004, and the second lens group 205 can be mounted on another through hole 3004.

[0136] The first lens group 204 and the second lens group 205 can be the same or different.

[0137] The optical element 201 can include a prism or a mirror and a lens, or only a prism or a mirror.

[0138] The fixed base 1 can be provided with a plurality of pin holes 11, and the plurality of pin holes 11 are arranged at intervals along the movement direction of the movement platform 2 relative to the fixed base 1. One pin hole 11 can correspond to one through hole 3004 on the cover plate 3001. The self-locking assembly 4 can be mounted on the movement platform 2, and the self-locking assembly 4 can include a pin shaft 41 which can be extended and retracted relative to the movement platform 2. When the pin shaft 41 is extended, it can be inserted into the pin hole 11 to lock the movement platform 2 and the fixed base 1. When the pin shaft 41 is retracted, it can be separated from the pin hole 11 to unlock the movement platform 2 and the fixed base 1.

[0139] It should be noted that one pin hole 11 can correspond to one through hole 3004 on the cover plate 3001, which means that when the pin shaft 41 is inserted into the pin hole 11, light can be incident on the optical element 201 through the through hole 3004 corresponding to the pin hole 11 in which the pin shaft 41 is inserted, and reflected to the image sensor 203 through the optical element 201.

[0140] In the embodiment, the physical and mechanical self-locking can be realized by inserting the pin shaft 41 into the pin hole 11, i.e., the self-locking assembly 4 can realize the locking of the moving platform 2 and the fixed base 1, thereby realizing the self-locking of the motor 10, and further stabilizing the lens 20, which is beneficial to improve the reliability of the lens 20 when the electronic device 1000 shakes or falls. For example, when the pin shaft 41 extends into the pin hole 11 to realize the locking of the moving platform 2 and the fixed base 1, the hand shaking and one-meter falling reliability can be ensured.

[0141] In the embodiment, the pin shaft 41 can extend at least 900 μm to improve the stable locking of the pin shaft 41 and the pin hole 11.

[0142] In the embodiment, one through hole 3004 can correspond to multiple pin holes 11, so as to improve the stability of the locking of the moving platform 2 and the fixed base 1 at each through hole 3004.

[0143] In the embodiment, the distance between the two pin holes 11 located at the two ends of the multiple pin holes 11 along the movement direction of the moving platform 2 relative to the fixed base 1 is greater than or equal to 9000 μm. In other words, the distance between the two through holes 3004 located at the two ends of the multiple through holes 3004 along the movement direction of the moving platform 2 relative to the fixed base 1 is greater than or equal to 9000 μm.

[0144] In the embodiment, the motor 10 can drive the optical element 201 to realize long-distance movement through the moving platform 2, which provides sufficient layout space for the lenses 20 with different focal lengths, reduces or even avoids the structural layout interference between the lenses 20 with different focal lengths, and is beneficial to realize the switching of the lenses 20 with different focal lengths.

[0145] In the embodiment, the detection assembly 5 is used to detect the position of the moving platform 2 relative to the fixed base 1, thereby assisting the alignment of the pin shaft 41 and the pin hole 11, improving the precision of the insertion of the pin shaft 41 into the pin hole 11, reducing or even avoiding the accidental collision of the pin shaft 41 with the fixed base 1 when the pin shaft 41 extends, and further improving the service life of the motor 10.

[0146] It can be understood that in some other embodiments, the pin hole 11 can be arranged on the moving platform 2, and correspondingly, the self-locking assembly 4 is arranged on the fixed base 1.

[0147] In some embodiments, the pin hole 11 can be arranged on both sides of the moving platform 2, the self-locking assembly 4 is arranged corresponding to the pin hole 11, and the driving assembly 3 can be arranged on the bottom side of the moving platform 2. In other words, the extending direction of the pin shaft 41 in the self-locking assembly 4 is towards the two sides of the moving platform 2.

[0148] In the embodiment, by arranging the pin hole 11 and the driving assembly 3 on different sides of the motion platform 2, the extension of the pin shaft 41 in the self-locking assembly 4 can be prevented from interfering with the installation space of the driving assembly 3. In addition, the size of the motion platform 2 on one side can be prevented from being excessively large due to too many components arranged on one side of the motion platform 2, and the space utilization can be improved.

[0149] For example, two groups of pin holes 11 are arranged at positions corresponding to each through hole 3004, and the two groups of pin holes 11 are symmetrically arranged on two sides of the motion platform 2, which is beneficial to improve the stability of the self-locking assembly 4 in locking the motion platform 2 and the fixed base 1.

[0150] The detection assembly 5 can be adaptively arranged according to the installation space of the motor 10, so as to improve the space utilization of the motor 10.

[0151] Please refer to FIG. 3A and FIG. 3B , FIG. 3A is FIG. 2A a structural schematic view of the motor 10 in the electronic device 1000 shown in FIG. 1 in some embodiments; FIG. 3B is FIG. 3A a partially exploded schematic view of the motor 10 in some embodiments.

[0152] For the convenience of illustration, in the embodiments of the present application, a rectangular coordinate system is established with the movement direction of the motion platform 2 relative to the fixed base 1 as the X axis, the width direction of the motor 10 as the Y axis, and the thickness direction of the motor 10 as the Z axis. It can be understood that in some other embodiments, a coordinate system can also be established with reference to other references, which is not limited herein.

[0153] In some embodiments, the motor 10 can further include a control circuit 6, and the control circuit 6 can be installed on the fixed base 1. The control circuit 6 can be electrically connected to the driving assembly 3. In the embodiment, the control circuit 6 is used to control the driving assembly 3 to drive the motion platform 2 to move relative to the fixed base 1.

[0154] For example, the control circuit 6 can also be electrically connected to the detection assembly 5.

[0155] In the embodiment, the control circuit 6 is also used to receive the position of the motion platform 2 detected by the detection assembly 5, so as to assist in judging whether the motion platform 2 moves to the set position and whether the pin shaft 41 is aligned with the pin hole 11, which is beneficial to improve the precision of inserting the pin shaft 41 into the pin hole 11.

[0156] The control circuit 6 can also be electrically connected to the self-locking assembly 4 to control the extension and retraction of the pin shaft 41 in the self-locking assembly 4.

[0157] It should be noted that the control instructions and signal processing of the control circuit 6 can be realized by the processor in the electronic device 1000, or can be realized by the control chip integrated in the control circuit 6.

[0158] Please refer to FIG. 3B to FIG. 4B , FIG. 4A is FIG. 3A a structural schematic diagram of the fixed base 1 in the motor 10 shown in FIG. 1; FIG. 4B is FIG. 4A a partial structural exploded schematic diagram of the fixed base 1 in some embodiments.

[0159] In some embodiments, the fixed base 1 can include a first part 1a and a second part 1b, and the first part 1a of the fixed base 1 is connected to the second part 1b of the fixed base 1. Wherein, the first part 1a of the fixed base 1 can be connected to the motion platform 2, and the second part 1b of the fixed base 1 can be provided with a pin hole 11.

[0160] For example, the first part 1a of the fixed base 1 can have an accommodation space 12, and the motion platform 2, the self-locking assembly 4, the detection assembly 5 and the driving assembly 3 can be accommodated in the accommodation space 12.

[0161] Wherein, the first part 1a of the fixed base 1 can be mounted with a guide 13, and the guide 13 is connected with the motion platform 2, so that the motion platform 2 can move relative to the fixed base 1 along the extension direction of the guide 13.

[0162] It should be noted that the drawings of the present application use straight line displacement for illustration, and the movement mode of the motion platform 2 relative to the fixed base 1 is not limited, which can be but not limited to linear motion, curve motion, etc. In other embodiments, the guide 13 can also be curve type or special shape, as long as it can realize the guidance of the motion platform 2. In other words, the motor 10 provided by the embodiments of the present application can also be applied to the scene of large angle rotation.

[0163] For example, the first part 1a of the fixed base 1 and the second part 1b of the fixed base 1 can be connected along the thickness direction of the motor 10. The top side of the second part 1b of the fixed base 1 can cover part of the motion platform 2.

[0164] In the embodiment, the first part la of the fixed base 1 is connected with the second part lb of the fixed base 1 along the thickness direction of the motor 10, which is conducive to the installation of the motion platform 2, the self-locking assembly 4, the detection assembly 5 and the driving assembly 3 in the accommodation space 12. Specifically, the motion platform 2, the self-locking assembly 4, the detection assembly 5 and the driving assembly 3 can be installed in the accommodation space 12 before the first part la of the fixed base 1 is connected with the second part lb of the fixed base 1, and then the second part lb of the fixed base 1 is fixedly connected with the first part la of the fixed base 1, so as to at least seal the motion platform 2, the self-locking assembly 4, the detection assembly 5 and the driving assembly 3.

[0165] In the embodiment, after the first part la of the fixed base 1 is connected with the second part lb of the fixed base 1, the first part la of the fixed base 1 can shield the side of the pin hole 11 away from the accommodation space 12, so as to seal the outside of the pin hole 11 and prevent external impurities from entering the accommodation space 12 through the outside of the pin hole 11, thereby achieving dustproof.

[0166] In other embodiments, the pin hole 11 can be arranged on the first part la of the fixed base 1, and / or the guide 13 can be arranged on the second part lb of the fixed base 1.

[0167] Please refer to FIG. 2A and FIG. 5A , FIG. 5A is FIG. 3A the structural schematic diagram of the motion platform 2 in the motor 10 shown in the embodiment.

[0168] In some embodiments, the motion platform 2 has a bearing surface 21, the bearing surface 21 faces away from the bottom plate 14 of the fixed base 1, and the bearing surface 21 is arranged obliquely compared with the bottom plate 14 of the fixed base 1, and the bearing surface 21 is used for bearing the optical element 201.

[0169] In the embodiment, since the optical element 201 needs to change the direction of the light rays incident through the through hole 3004 to reflect the incident light rays to the image sensor 203, the optical element 201 needs to be provided with a reflection surface obliquely arranged compared with the bottom plate 14 of the fixed base 1. The motion platform 2 is arranged according to the profile of the optical element 201 to design the obliquely arranged bearing surface 21 to mount the optical element 201, and the bearing surface 21 is arranged corresponding to the reflection surface of the optical element 201, which improves the mounting stability of the optical element 201. In addition, the obliquely arranged bearing surface 21 is used to mount the optical element 201 to be arranged in the gap between the optical element 201 and the fixed base 1, thereby improving the space utilization of the motor 10.

[0170] In the embodiment, the optical element 201 can be mounted on the optical element 201 by plug-in, clamping, bonding or the like, but is not limited thereto.

[0171] Please refer to FIG. 5A to FIG. 6 , FIG. 5B is FIG. 5A is a structural schematic diagram of the motion platform 2 in another perspective view; FIG. 6 is FIG. 5B is a structural schematic diagram of the motion platform 2 installing the self-locking assembly 4.

[0172] In some embodiments, the motion platform 2 can have a receiving space 22 located between the bearing surface 21 and the bottom plate 14 of the fixed base 1, for receiving the self-locking assembly 4.

[0173] In the present embodiment, by setting the receiving space 22 in the part of the motion platform 2 between the bearing surface 21 and the fixed base 1, the space utilization of the motion platform 2 can be improved, and by receiving the self-locking assembly 4 in the receiving space 22 of the motion platform 2, the size of the motor 10 is compressed, which is conducive to the lightweight design of the motor 10. In addition, since the self-locking assembly 4 will move together with the motion platform 2, installing the self-locking assembly 4 in the internal space of the motion platform 2 can also improve the stability of the self-locking assembly 4 moving together with the motion platform 2.

[0174] For example, the motion platform 2 can have a reinforcing rib 23 located in the internal space of the motion platform 2 to divide the internal space of the motion platform 2 into two receiving spaces 22 for respectively receiving two self-locking assemblies 4.

[0175] In the present embodiment, by setting the reinforcing rib 23, not only the structural strength of the motion platform 2 can be strengthened, but also the two self-locking assemblies 4 can be separated to reduce the interference between the two self-locking assemblies 4.

[0176] Among them, the motion platform 2 is provided with an opening 24 communicating with the receiving space 22, and the opening 24 is arranged corresponding to the pin shaft 41 of the self-locking assembly 4, so as to facilitate the pin shaft 41 of the self-locking assembly 4 to extend and retract through the opening 24.

[0177] Please refer to FIG. 7A to FIG. 7C , FIG. 7A is FIG. 3A is a structural schematic diagram of the self-locking assembly 4 in some embodiments of the motor 10; FIG. 7B is FIG. 7A is a structural schematic diagram of the self-locking assembly 4 in some embodiments; FIG. 7C is FIG. 7A is a structural schematic diagram of the self-locking assembly 4 along line B-B in some embodiments.

[0178] In some embodiments, the self-locking assembly 4 can further include a magnetic driving piece 42, an extending magnetic attraction piece 43, a mounting seat 44, a retracting magnetic attraction piece 45, a balance magnetic attraction piece 46, and a buffer piece 47.

[0179] For example, the mounting base 44 can be mounted on the motion platform. The mounting base 44 can include a bottom wall 441, a first side wall 442 and a second side wall 443, the bottom wall 441 is mounted on the motion platform, the first side wall 442 and the second side wall 443 are located on the same side of the bottom wall 441 and are connected to opposite ends of the bottom wall 441, the first side wall 442 is closer to the pin hole 11 than the second side wall 443, and the bottom wall 441, the first side wall 442 and the second side wall 443 surround to form a mounting space 444, which accommodates at least part of the magnetic drive 42 and the pin shaft 41.

[0180] In this embodiment, the mounting base 44 can play a role in stably mounting the magnetic drive 42 and the pin shaft 41, and stably supporting the extension and retraction of the pin shaft 41.

[0181] The first side wall 442 can be provided with a first guide hole 4421, and the second side wall 443 can be provided with a second guide hole 4431, both the first guide hole 4421 and the second guide hole 4431 are in communication with the mounting space 444, the inner diameters of the first guide hole 4421 and the second guide hole 4431 are both greater than the outer diameter of the pin shaft 41, and the first guide hole 4421 and the second guide hole 4431 are used to pass through the pin shaft 41.

[0182] In this embodiment, through the design of the first guide hole 4421 and the second guide hole 4431, the extension and retraction of the pin shaft 41 can be guided, thereby improving the stability of the extension and retraction of the pin shaft 41.

[0183] The cross-sectional shape of the first guide hole 4421 can be circular, or oval, or V-shaped, or U-shaped, etc. The cross-sectional shape of the second guide hole 4431 can be circular, or oval, or V-shaped, or U-shaped, etc.

[0184] The second side wall 443 and the bottom wall 441 can be a split structure, that is, the second side wall 443 can be detachably connected to the bottom wall 441.

[0185] In this embodiment, the second side wall 443 is detachably connected to the bottom wall 441, so that the magnetic drive 42 and the pin shaft 41 can be mounted in the mounting space 444 before the second side wall 443 is mounted on the bottom wall 441, and the mounting of the second side wall 443 on the bottom wall 441 can play a role in fixing the magnetic drive 42 and the pin shaft 41, which is conducive to the stability of the extension and retraction of the pin shaft 41.

[0186] Please refer to FIG. 7A , FIG. 7C and FIG. 8 , FIG. 8 are FIG. 3AThe structure of the motor 10 in some embodiments is shown in a schematic view along the line C-C when the pin shaft 41 is retracted.

[0187] In some embodiments, the magnetic driver 42 can be used to drive the pin shaft 41 to extend relative to the moving platform 2 and insert into the pin hole 11 to lock the moving platform 2 and the fixed base 1, and to drive the pin shaft 41 to retract relative to the moving platform 2 to disengage from the pin hole 11 to unlock the moving platform 2 and the fixed base 1.

[0188] For example, the magnetic driver 42 can include a coil 421 and a magnet 422. The coil 421 can be fixed to the moving platform 2 by being fixed to the mounting seat 44, and the magnet 422 can be fixedly connected to the pin shaft 41. The coil 421 is used to pass a first current to drive the magnet 422 to drive the pin shaft 41 to extend, and the coil 421 is also used to pass a second current to drive the magnet 422 to drive the pin shaft 41 to retract. The current direction of the second current is opposite to that of the first current.

[0189] In the embodiment, the extension and retraction of the pin shaft 41 can be achieved by energizing and reverse energizing the coil 421, so that the locking and unlocking of the moving platform 2 and the fixed base 1 are fast.

[0190] In addition, in the embodiment, the coil 421 is fixed and the magnet 422 moves relative to the coil 421, that is, the design of fixed coil and moving magnet, which is beneficial to the circuit connection of the coil 421, avoids the wire harness connection of the coil 421 being pulled by the movement of the coil 421, and is beneficial to improving the stability of the coil 421 driving the magnet 32.

[0191] In other embodiments, the magnet 422 can be fixedly mounted on the mounting seat 44, and the coil 421 can be fixedly connected to the pin shaft 41, so as to realize the design of fixed magnet and moving coil, which is beneficial to reducing the driving force required for driving the pin shaft 41, thereby achieving energy saving and faster extension and retraction of the pin shaft 41.

[0192] In other embodiments, the magnetic driver 42 can be used only to drive the pin shaft 41 to extend relative to the moving platform 2 and insert into the pin hole 11 on the fixed base 1 to lock the moving platform 2 and the fixed base 1. The retraction of the pin shaft 41 can be achieved by other ways, for example, an elastic member can be arranged to elastically connect the pin shaft 41 and the mounting seat 44, the coil 421 is energized to drive the magnet 422 to move to compress the elasticity of the elastic member to drive the pin shaft 41 to extend, and the coil 421 is de-energized, and the elastic member drives the pin shaft 41 to retract by the elastic restoring force.

[0193] In the embodiment of the application, in the state shown in FIG. 7A , FIG. 7C and FIG. 8 , the pin shaft 41 can be driven by the magnetic driver 42 to extend and insert into the pin hole 11 on the fixed base 1 to be converted into the state shown inFIG. 9A to FIG. 10 The self-locking assembly 4 is in the state shown in FIG. 1, and the movement platform 2 is locked with the fixed base 1. In addition, in the state shown in FIG. 1, the pin shaft 41 can be driven to retract and disengage from the pin hole 11 by the magnetic driver 42, so as to be converted into the state shown in FIG. 2, and the movement platform 2 is unlocked with the fixed base 1. FIG. 9A to FIG. 10 The self-locking assembly 4 is in the state shown in FIG. 1, and the movement platform 2 is locked with the fixed base 1. In addition, in the state shown in FIG. 1, the pin shaft 41 can be driven to retract and disengage from the pin hole 11 by the magnetic driver 42, so as to be converted into the state shown in FIG. 2, and the movement platform 2 is unlocked with the fixed base 1. FIG. 7A 、 FIG. 7C and FIG. 8 The self-locking assembly 4 is in the state shown in FIG. 1, and the movement platform 2 is locked with the fixed base 1. In addition, in the state shown in FIG. 1, the pin shaft 41 can be driven to retract and disengage from the pin hole 11 by the magnetic driver 42, so as to be converted into the state shown in FIG. 2, and the movement platform 2 is unlocked with the fixed base 1.

[0194] Please refer to FIG. 9A to FIG. 10 , FIG. 9A is FIG. 3A the structure diagram of the self-locking assembly 4 in some embodiments when the pin shaft 41 is extended; FIG. 9B is FIG. 9A the structure diagram of the self-locking assembly 4 along the line D-D in some embodiments when the pin shaft 41 is extended; FIG. 10 is FIG. 3A the structure diagram of the motor 10 along the line C-C in some embodiments when the pin shaft 41 is extended.

[0195] In some embodiments, the outer diameter of the part of the pin shaft 41 inserted into the pin hole 11 can be smaller than the inner diameter of the pin hole 11.

[0196] In the present embodiment, the outer diameter of the part of the pin shaft 41 inserted into the pin hole 11 is designed to be smaller than the inner diameter of the pin hole 11, so as to provide a margin space for the radial direction of the pin shaft 41, and reduce or even avoid the risk of collision of the pin shaft 41 with the fixed base 1 during the process of inserting the pin shaft 41 into the pin hole 11.

[0197] For example, the buffer 47 can be arranged around the part of the pin shaft 41 inserted into the pin hole 11.

[0198] In the present embodiment, the buffer 47 can reduce the impact force when the pin shaft 41 is inserted into the pin hole 11, so as to protect the pin shaft 41 and the fixed base 1, and improve the service life of the motor 10.

[0199] In the present embodiment, the outer diameter of the buffer 47 can be smaller than the inner diameter of the pin hole 11, so as to provide a margin space for the radial direction of the buffer 47, and reduce or even avoid the risk of collision of the pin shaft 41 with the fixed base 1 during the process of inserting the pin shaft 41 into the pin hole 11.

[0200] In the present embodiment, the material of the buffer 47 can include rubber, silica gel and other materials having a buffering effect.

[0201] In some embodiments, the extended magnetic attraction member 43 can be mounted on the mounting seat 44 and located on the side of the pin shaft 41 facing the pin hole 11.

[0202] In this embodiment, the extended magnetic chuck 43 can magnetically attract the magnet 422 after the pin 41 extends, so that the pin 41 can remain stably inserted into the pin hole 11, thereby improving the stability of locking the moving platform 2 and the fixed base 1. Furthermore, after the coil 421 in the magnetic drive 42 is de-energized, although the coil 421 no longer generates a magnetic thrust on the magnet 422 to push the pin 41, the extended magnetic chuck 43 can still magnetically attract the magnet 422, allowing the pin 41 to remain inserted into the pin hole 11, which helps save energy. Moreover, when the magnetic drive 42 drives the pin 41 to extend near its extension limit position, the extended magnetic chuck 43 can lock the pin 41 by magnetically attracting the magnet 422, thereby achieving assisted locking of the pin 41 at its extension limit position.

[0203] For example, the extended magnetic member 43 can be installed on the first side wall 442, and the extended magnetic member 43 can be arranged around the first guide hole 4421 to avoid structural interference between the extended magnetic member 43 and the pin 41.

[0204] The extended magnetic chuck 43 is disposed on the surface of the first side wall 442 away from the second side wall 443 to avoid the magnet 422 from colliding with the extended magnetic chuck 43 when the pin 41 extends, thereby improving the service life of the extended magnetic chuck 43 and the magnet 422.

[0205] The extended magnetic element 43 may have magnetic force, or the extended magnetic element 43 may have magnetic conductivity.

[0206] In the embodiments of this application, in such FIG. 7A , FIG. 7C and FIG. 8 In the indicated state, the drive assembly 3 can also drive the motion stage 2 to move so that the pin 41 is aligned with another through hole. After the pin 41 is aligned with another through hole, the magnetic drive unit 42 can drive the pin 41 to extend and insert into the pin hole 11 on the fixed base 1, thereby locking the motion stage 2 and the fixed base 1. For example, this achieves the motion stage 2 and the fixed base 1 in a certain position. FIG. 11A and FIG. 11B The indicated location is locked.

[0207] Please refer to the following: FIG. 2A , FIG. 11A and FIG. 11B , FIG. 11A yes FIG. 3A The diagram shows the structure of the moving platform 2 in the motor 10 moving to another position in some embodiments; FIG. 11B yes FIG. 11A The diagram shows a structural schematic of the motor 10 cut along line EE when the pin 41 extends, in some embodiments.

[0208] In some embodiments, the self-locking assembly 4 can lock the movement platform 2 and the fixed base 1 at different positions.

[0209] In the present embodiment, under the driving of the driving assembly 3, the movement platform 2 can move relative to the fixed base 1, so that the pin shaft 41 of the self-locking assembly 4 corresponds to different pin holes 11, and the pin shaft 41 is inserted into the small hole at different positions, so as to realize the locking of the self-locking assembly 4 at different positions. The movement platform 2 and the fixed base 1, so that the camera module 100 can be locked under different focal length lenses 20, and the stability of the lens 20 in the camera module 100 is provided.

[0210] Please refer again to FIG. 7B to FIG. 8 In some embodiments, the coil 421 can be clamped and fixed to the mounting seat 44. The bottom wall 441 of the mounting seat 44 can be provided with a mounting groove 4411, and the mounting groove 4411 is recessed in the bottom wall 441 to form a limiting step close to the inner side wall of the first side wall 442. By arranging the coil 421 corresponding to the mounting groove 4411, the second side wall 443 can be clamped and fixed with the bottom wall 441 to the mounting groove 4411, so as to limit and fix the coil 421 in the axial direction of the pin shaft 41, so as to avoid movement of the coil 421 relative to the mounting seat 44 after being electrified.

[0211] Among them, the second side wall 443 can be provided with a limiting block 4432, and the limiting block 4432 can be protruded from the surface of the second side wall 443 facing the first side wall 442. The limiting block 4432 can limit the coil 421, so as to limit and fix the coil 421 in the radial direction of the pin shaft 41, so as to avoid shaking of the coil 421 relative to the mounting seat 44 after being electrified. Therefore, through the combined limiting action of the limiting block 4432 and the mounting groove 4411, the stability of the mounted coil 421 can be further improved.

[0212] In other embodiments, the coil 421 can be bonded to the bottom wall 441 and / or the second side wall 443 to fix the coil 421, and the fixing method is simple.

[0213] For example, the inner diameters of the first guide hole 4421 and the second guide hole 4431 can be smaller than the outer diameter of the magnet 422.

[0214] In this embodiment, by setting the inner diameter of the first guide hole 4421 to be smaller than the outer diameter of the magnet 422, when the pin 41 extends, the first sidewall 442 can pass through the limiting magnet 422, thereby limiting the extension length of the pin 41 and preventing the pin 41 from overextending and colliding with other components. By setting the inner diameter of the second guide hole 4431 to be larger than the outer diameter of the magnet 422, when the pin 41 retracts, the second sidewall 443 can pass through the limiting magnet 422, thereby limiting the retracted position of the pin 41 and preventing the pin 41 from falling off through the second limiting hole.

[0215] In some embodiments, the retractable magnetic chuck 45 may be mounted on the mounting base 44 and located on the side of the magnet 422 opposite to the protruding magnetic chuck 43.

[0216] In this embodiment, the retractable magnetic chuck 45 can magnetically attract the magnet 422 after the pin 41 retracts, so that the pin 41 can remain in a stable retracted state, thereby preventing the pin 41 from affecting the relative movement between the moving platform 2 and the fixed base 1. Furthermore, after the coil 421 in the magnetic drive 42 is de-energized, although the coil 421 no longer generates a magnetic force on the magnet 422 to pull the pin 41, the retractable magnetic chuck 45 can magnetically attract the magnet 422, allowing the pin 41 to remain in a retracted state even after the coil 421 is de-energized, which helps save energy. In addition, when the magnetic drive 42 drives the pin 41 to retract near its retraction limit position, the retractable magnetic chuck 45 can lock the pin 41 by magnetically attracting the magnet 422, thereby achieving assisted locking of the pin 41 at its retraction limit position. By combining the extension of the magnetic suction member 43 and the retraction of the magnetic suction member 45, the self-locking component 4 can achieve two-position power-off self-locking, thereby achieving energy saving of the self-locking component 4.

[0217] For example, the retractable magnetic chuck 45 can be installed on the second sidewall 443, and the retractable magnetic chuck 45 can be arranged around the second guide hole 4431 to avoid structural interference between the retractable magnetic chuck 45 and the pin 41.

[0218] The retractable magnetic chuck 45 is disposed on the surface of the second side wall 443 away from the first side wall 442 to avoid the magnet 422 colliding with the retractable magnetic chuck 45 when the pin 41 retracts, thereby improving the service life of the retractable magnetic chuck 45 and the magnet 422.

[0219] The retractable magnetic chuck 45 may have magnetic force, or the retractable magnetic chuck 45 may have magnetic conductivity.

[0220] In some embodiments, the balancing magnetic element 46 may be disposed on the bottom wall 441, and the magnet 422 covers at least a portion of the balancing magnetic element 46 during movement.

[0221] In the embodiment, the balance magnetic attraction member 46 can attract the magnet 422 towards the bottom wall 441 to prevent the magnet 422 from deviating from the pin shaft 41 during movement, thereby improving the stability of the movement of the pin shaft 41 driven by the coil 421 and the magnet 32, and facilitating the alignment and accurate insertion of the pin shaft 41 into the pin hole 11.

[0222] The balance magnetic attraction member 46 can be arranged on the side of the bottom wall 441 away from the installation space 444 to avoid occupying the space of the installation space 444, thereby avoiding the balance magnetic attraction member 46 from occupying the movement space of the magnet 422 or the pin shaft 41, avoiding the collision between the balance magnetic attraction member 46 and the magnet 422 or the pin shaft 41, and improving the service life of the balance magnetic attraction member 46.

[0223] For example, the side surface of the bottom wall 441 away from the installation space 444 can be provided with a groove for accommodating the balance magnetic attraction member 46.

[0224] In some embodiments, the coil 421 can be annular, and the magnet 422 is coaxially arranged with the coil 421. When the pin shaft 41 is in the retracted state, the end portion of the magnet 422 away from the protruding magnetic attraction member 43 is located inside the coil 421, and the end portion of the magnet 422 close to the protruding magnetic attraction member 43 is exposed from the coil 421. When the pin shaft 41 is in the extended state, the end portion of the magnet 422 away from the protruding magnetic attraction member 43 is located inside the coil 421.

[0225] In the embodiment, the magnetic driving member 42 has a barrel structure to realize the dynamic magnetic ejection driving design of the outer coil 421 and the inner magnet 422. By designing the magnet 422 to be partially exposed from the coil 421 when the pin shaft 41 is in the extended and retracted states, the coupling effect of the coil 421 and the magnet 422 can be improved, thereby improving the effect of the extension and retraction of the pin shaft 41, for example, improving the speed and stability of the extension and retraction of the pin shaft 41 driven by the coil 421 and the magnet 32.

[0226] When the pin shaft 41 is in the retracted state, the ratio of the length of the portion of the magnet 422 exposed from the coil 421 to the length of the magnet 422 can be in the range of 20% to 60%, which is conducive to improving the effect of the extension of the pin shaft 41 driven by the coil 421 and the magnet 32. For example, when the pin shaft 41 is in the retracted state, the ratio of the length of the portion of the magnet 422 exposed from the coil 421 to the length of the magnet 422 can be 20%, or 30%, or 35%, or 40%, or 45%, or 55%, or 60%, or other values between 20% and 60%.

[0227] When the pin shaft 41 is in the extended state, the ratio of the length of the part of the magnet 422 exposed to the coil 421 to the length of the magnet 422 can be in the range of 50% to 90%, which is beneficial to improve the effect of driving the magnet 32 to retract the pin shaft 41 after the coil 421 is powered. For example, when the pin shaft 41 is in the extended state, the ratio of the length of the part of the magnet 422 exposed to the coil 421 to the length of the magnet 422 can be 50%, or 60%, or 70%, or 75%, or 80%, or 85%, or 90%, or other values between 50% and 90%.

[0228] The ratio of the outer diameter of the magnet 422 to the outer diameter of the coil 421 can be in the range of 40% to 90%, which can improve the coupling effect of the coil 421 and the magnet 422, thereby improving the effect of the pin shaft 41 extending and retracting. For example, the ratio of the outer diameter of the magnet 422 to the outer diameter of the coil 421 can be 40%, or 50%, or 60%, or 65%, or 70%, or 75%, or 85%, or 90%, or other values between 40% and 90%.

[0229] In some embodiments, the magnet 422 can be coaxially arranged with the pin shaft 41.

[0230] In the present embodiment, by coaxially arranging the magnet 422 with the pin shaft 41, the movement direction of the magnet 422 can be aligned with the axis of the pin shaft 41 when the coil 421 drives the magnet 32 to move, thereby making the movement of the magnet 422 driving the pin shaft 41 more stable, and reducing the resistance of the pin shaft 41 to the magnet 422, which is beneficial to the efficient extension and retraction of the pin shaft 41.

[0231] For example, the pin shaft 41 can be arranged through the magnet 422.

[0232] In the present embodiment, by arranging the pin shaft 41 through the magnet 422, the stability of the connection between the pin shaft 41 and the magnet 422 can be improved, the overall rigidity of the magnet 422 and the pin shaft 41 is improved, and the magnet 422 can be arranged close to the center of the pin shaft 41, which can guide the movement of the magnet 422, thereby improving the balance of the movement of the magnet 422 driving the pin shaft 41.

[0233] In the direction of the second side wall 443 pointing to the first side wall 442, the pin shaft 41 can include a first portion 41a, a second portion 41b and a third portion 41c connected in sequence. The outer diameter of the second portion 41b of the pin shaft 41 can be greater than the outer diameter of the first portion 41a of the pin shaft 41.

[0234] In the embodiment, the outer diameter of the second portion 41b of the pin shaft 41 is greater than the outer diameter of the first portion 41a of the pin shaft 41, so that the second portion 41b of the pin shaft 41 can form a limit to the magnet 422 at the connection between the first portion 41a of the pin shaft 41 and the second portion 41b of the pin shaft 41, which is conducive to the stable connection and installation of the pin shaft 41 and the magnet 422, and reduces the risk of the magnet 422 falling off after the pin shaft 41 is repeatedly extended and retracted.

[0235] The outer diameter of the second portion 41b of the pin shaft 41 can be greater than the outer diameter of the third portion 41c of the pin shaft 41, and the buffer 47 can be sleeved on the third portion 41c of the pin shaft 41.

[0236] In the embodiment, the outer diameter of the second portion 41b of the pin shaft 41 is greater than the outer diameter of the third portion of the pin shaft, so that the second portion 41b of the pin shaft 41 can form a limit to the buffer 47 at the connection between the second portion 41b of the pin shaft 41 and the third portion 41c of the pin shaft 41, which is conducive to the stable connection and installation of the buffer 47 and the pin shaft 41, and reduces the risk of the buffer 47 falling off after the pin shaft 41 is repeatedly extended and retracted.

[0237] It should be noted that the shapes of the pin shaft 41, the magnet 422, and the coil 421 in the embodiments of the accompanying drawings are only schematic and are not limited to the shapes of the pin shaft 41, the magnet 422, and the coil 421, as long as the pin shaft 41 can be connected with the magnet 422, and the magnet 422 can be coupled with the coil 421.

[0238] The cross-sectional shape of the pin shaft 41 can be, but is not limited to, circular, square, or prismatic.

[0239] The cross-sectional shape of the magnet 422 can be, but is not limited to, circular, square, or prismatic.

[0240] The cross-sectional shape of the coil 421 can be, but is not limited to, circular, square, or prismatic.

[0241] Please refer to FIG. 2B , FIG. 12A and FIG. 12B , FIG. 12A are FIG. 3A schematic diagrams of the structure of the second portion 1b of the fixed base 1 in the motor 10 shown in FIG. 10 in some embodiments, in which the magnetic grid 52 is installed; FIG. 12B are FIG. 3A schematic diagrams of the installation of the self-locking assembly 4, the driving assembly 3, and the detection assembly 5 in the motor 10 shown in FIG. 10 in some embodiments.

[0242] In some embodiments, the detection assembly 5 can be arranged along a movement direction of the moving platform 2 relative to the fixed base 1, and the detection assembly 5 is configured to detect the position of the fixed base 1 on the moving platform 2.

[0243] In the present embodiment, the detection assembly 5 is arranged along the movement direction of the moving platform 2 relative to the fixed base 1, so that the detection assembly 5 can detect the position of the moving platform 2 in the entire movement path of the moving platform 2, which is conducive to improving the position detection accuracy of the moving platform 2, and thus improving the accuracy of the pin shaft 41 aligning with the pin hole 11.

[0244] For example, the detection assembly 5 can include a tunneling magneto-resistive (TMR) sensor 51 and a magnetic grid 52, the TMR sensor 51 is mounted on the moving platform 2, the magnetic grid 52 is mounted on the fixed base 1, the magnetic grid 52 is arranged along the movement direction of the moving platform 2 relative to the fixed base 1, and the TMR sensor 51 is arranged opposite to the magnetic grid 52.

[0245] In the present embodiment, the TMR sensor 51 can move with the moving platform 2, and in the entire movement path of the TMR sensor 51, there is always a part of the magnetic grid 52 arranged opposite to the TMR sensor 51, so that the position of the TMR sensor 51 can be obtained through the part of the magnetic grid 52 arranged opposite to the TMR sensor 51, and thus the position of the moving platform 2 relative to the fixed base 1 can be determined to achieve position detection and alignment of the pin shaft 41 with the pin hole 11.

[0246] In the present embodiment, the self-locking assembly 4 can be arranged apart from the magnetic grid 52 along the movement direction of the moving platform 2 relative to the fixed base 1.

[0247] In the present embodiment, by arranging the self-locking assembly 4 apart from the magnetic grid 52 along the movement direction of the moving platform 2 relative to the fixed base 1, the magnetic interference of the magnetic grid 52 on the magnetic driving element 42 can be reduced, so as to reduce the influence on the extension and retraction of the pin shaft 41, and thus reduce the interference with the locking effect of the moving platform 2 and the fixed base 1.

[0248] In the present embodiment, the self-locking assembly 4 can be arranged apart from the magnetic grid 52 along the stacking direction of the driving assembly 3 and the moving platform 2.

[0249] In the present embodiment, by arranging the self-locking assembly 4 apart from the magnetic grid 52 in multiple directions, the magnetic interference of the magnetic grid 52 on the magnetic driving element 42 can be reduced or even avoided, so as to reduce the influence on the extension and retraction of the pin shaft 41, and thus reduce the interference with the locking effect of the moving platform 2 and the fixed base 1.

[0250] In the present embodiment, the magnetic grid 52 can be at least partially embedded in the fixed base 1.

[0251] In the present embodiment, the second part 1b of the fixed base 1 can be provided with a receiving groove 15 (see FIG. 4B ), the opening of the receiving groove 15 is arranged towards the motion platform 2, by mounting at least part of the magnetic grid 52 in the receiving groove 15, thereby achieving the embedded installation of the magnetic grid 52 in the fixed base 1, improving the installation stability of the magnetic grid 52, and by accommodating at least part of the magnetic grid 52 in the receiving groove 15, it can reduce or even avoid the magnetic grid 52 from being exposed to the fixed base 1, thereby reducing the interference of the magnetic grid 52 on the movement of the motion platform 2 relative to the fixed base 1. In addition, embedding the magnetic grid 52 in the fixed base 1 can also save space and improve the space utilization of the motor 10.

[0252] In other embodiments, the detection assembly 5 can also be a Hall detector to detect the position of the motion platform 2.

[0253] Please refer to FIG. 2A , FIG. 2B and FIG. 12B , in some embodiments, the driving assembly 3 can include a driving coil 31 and a driving magnet 32, one of the driving coil 31 and the driving magnet 32 is connected to the fixed base 1, and the other is connected to the motion platform 2.

[0254] In some examples, the driving coil 31 can be connected to the motion platform 2, and the driving magnet 32 can be connected to the fixed base 1.

[0255] In the present embodiment, by connecting the driving coil 31 to the motion platform 2, the additional load of the motion platform 2 can be reduced, which is conducive to the motion platform 2 being able to carry a larger weight of optical element 201.

[0256] Among them, within the stroke range of the motion platform 2 relative to the fixed base 1, there are parts of the driving magnet 32 opposite the driving coil 31.

[0257] In the present embodiment, the driving magnet 32 covers the entire stroke range of the driving coil 31, so that within the motion stroke range of the motion platform 2, the driving magnet 32 can drive the driving coil 31 to drive the motion platform 2 to move through the Lorentz force, which is conducive to improving the stability of the driving assembly 3 driving the motion platform 2 to move.

[0258] In other examples, the driving magnet 32 can be connected to the motion platform 2, and the driving coil 31 can be connected to the fixed base 1.

[0259] In the present embodiment, by connecting the driving coil 31 to the fixed base 1, the driving coil 31 does not need to move relative to the fixed base 1, thereby avoiding the problem of wire harness connection movement caused by the movement of the driving coil 31.

[0260] In some embodiments, the magnetic pole face of the driving magnet 32 can be arranged non-perpendicular to the moving direction of the pin shaft 41.

[0261] In the present embodiment, by arranging the magnetic pole face of the driving magnet 32, the magnetic field direction of the driving magnet 32 can be arranged intersecting with the moving direction of the pin shaft 41, so that the magnetic interference direction of the driving magnet 32 to the magnets 422 in the magnetic driving member 42 intersects with the moving direction of the pin shaft 41 driven by the magnets 422, and the magnetic interference of the magnetic field of the driving magnet 32 to the magnetic driving member 42 can be reduced, so as to reduce the influence on the extension and retraction of the pin shaft 41, and to reduce the interference to the locking effect of the moving platform 2 and the fixed base 1.

[0262] It should be noted that the magnetic pole face of the driving magnet 32 can be the surface facing the self-locking assembly 4 and the surface facing away from the self-locking assembly 4. For example, the surface of the driving magnet 32 facing the self-locking assembly 4 can be N pole (not labeled in the figure), and the surface of the driving magnet 32 facing away from the self-locking assembly 4 can be S pole (not labeled in the figure). It can be understood that the magnetic pole face of the driving magnet 32 can also be other ways, for example, the S pole and the N pole of the driving magnet 32 can be interchanged.

[0263] In some embodiments, the magnetic pole face of the driving magnet 32 can be arranged parallel to the moving direction of the pin shaft 41, so as to further reduce the component size of the magnetic field of the driving magnet 32 in the moving direction of the pin shaft 41, thereby further reducing the magnetic interference of the magnetic field of the driving magnet 32 to the magnetic driving member 42, and further reducing the influence on the extension and retraction of the pin shaft 41, so as to further reduce the interference to the locking effect of the moving platform 2 and the fixed base 1.

[0264] Please refer to FIG. 2A , FIG. 12B and FIG. 13 , FIG. 13 are FIG. 3A the installation schematic diagram of the self-locking assembly 4, the driving assembly 3, the detection assembly 5 and the control circuit 6 in some embodiments of the motor 10 shown in FIG.

[0265] In some embodiments, the self-locking assembly 4 can be used to receive a control instruction and drive the pin shaft 41 to retract to disengage from the pin hole 11, so as to realize the unlocking of the moving platform 2 and the fixed base 1. In some embodiments, the driving assembly 3 can be used to drive the moving platform 2 to move relative to the fixed base 1 after the pin shaft 41 disengages from the pin hole 11, so as to realize the lens 20 switching.

[0266] The detection assembly 5 can be used to detect the position information of the fixed base 1 during the movement of the moving platform 2 relative to the fixed base 1, and the position information of the fixed base 1 is used to assist the alignment of the pin shaft 41 and the pin hole 11. After the pin shaft 41 and the pin hole 11 are aligned, the self-locking assembly 4 is used to drive the pin shaft 41 to extend to insert into the pin hole 11, and the driving assembly 3 is used to stop driving the moving platform 2 after the pin shaft 41 is inserted into the pin hole 11.

[0267] In this embodiment, through the cooperation of the self-locking assembly 4, the driving assembly 3 and the detection assembly 5, the orderly unlocking and locking of the moving platform 2 and the fixed base 1 can be realized, so as to orderly realize the lens 20 switching of the camera module 100 in the electronic device 1000.

[0268] For example, the control circuit 6 can receive the control instruction of the processor in the electronic device 1000 to control the movement of the self-locking assembly 4 and the driving assembly 3, and the control circuit 6 can also receive the position information of the moving platform 2 detected by the detection assembly 5 and feed back the position information of the moving platform 2 to the processor to assist the processor to realize logical control.

[0269] Specifically, the control logic of the motor 10 can include steps S10, S20, S30 and S40 (not shown in the figure).

[0270] S10, the detection assembly 5 detects the position information of the moving platform 2.

[0271] The detection assembly 5 can confirm whether the pin shaft 41 in the self-locking assembly 4 installed on the moving platform 2 is aligned with the pin hole 11 on the fixed base 1 and which pin hole 11 the pin shaft 41 is aligned with by detecting the position information of the moving platform 2. The detection signal of the detection assembly 5 can be transmitted to the processor through the control circuit 6, so that the processor can obtain the position information of the moving platform 2 according to the detection signal of the detection assembly 5.

[0272] S20, the driving motor 10 drives the moving platform 2 to move relative to the fixed base 1, and the self-locking assembly 4 drives the pin shaft 41 to extend to insert into the pin hole 11 according to the position information of the moving platform 2 detected by the detection assembly 5, thereby completing the self-locking of the moving platform 2 and the fixed base 1.

[0273] When the moving platform 2 and the fixed base 1 are in the unlocked state, the driving motor 10 can drive the moving platform 2 to move relative to the fixed base 1 under the control of the control circuit 6, and when the pin shaft 41 is aligned with the pin hole 11, the control circuit 6 can transmit a control instruction to the self-locking assembly 4 to drive the pin shaft 41 to extend and insert into the pin hole 11.

[0274] When the pin shaft 41 is aligned with the pin hole 11, the control circuit 6 can control the pin shaft 41 to continuously align with the pin hole 11 until the self-locking assembly 4 drives the pin shaft 41 to extend and insert into the pin hole 11, which can improve the accuracy of the pin shaft 41 inserted into the pin hole 11.

[0275] S30, the self-locking assembly 4 drives the pin shaft 41 to retract according to the switching lens 20 control instruction, to realize the unlocking of the moving platform 2 and the fixed base 1.

[0276] The control circuit 6 can receive the switching lens 20 control instruction and transmit it to the self-locking assembly 4, so that the magnetic drive 42 is reversely energized to drive the pin shaft 41 to retract, to complete the unlocking.

[0277] S40, repeat steps S10, S20 and S30, and the moving platform 2 and the fixed base 1 realize self-locking / unlocking at other positions.

[0278] The above steps S10, S20 and S30 can be used to realize the locking of the electronic device 1000 at different lenses 20 and the switching between different focal length lenses 20.

[0279] Please refer to FIG. 2B and FIG. 14 , FIG. 14 is FIG. 2A the structural layout of the motor 10 in the electronic device 1000 in other embodiments. It should be noted that, FIG. 14 may include FIG. 2B and FIG. 3A most of the technical features of the motor 10, and only the different parts of the two will be described here, and the same parts will not be described again.

[0280] In some embodiments, the driving assembly 3 can be arranged on both sides of the moving platform 2, the pin hole 11 can be arranged on the bottom side of the moving platform 2, and the self-locking assembly 4 is arranged corresponding to the pin hole 11. In other words, the pin hole 11 can be arranged on the bottom plate 14 of the fixed base 1, and the extension direction of the pin shaft 41 of the self-locking assembly 4 is towards the bottom plate 14 of the fixed base 1.

[0281] In this embodiment, the driving assembly 3 and the self-locking assembly 4 are arranged staggered, which is beneficial to reduce or even avoid the structural interference between the self-locking assembly 4 and the driving assembly 3, and also can reduce the signal crosstalk between the driving assembly 3 and the self-locking assembly 4. In addition, since the driving assembly 3 can be arranged in two groups on both sides of the moving platform 2, it is beneficial to improve the balance of the moving platform 2 relative to the fixed base 1, and also beneficial to improve the driving power of the moving platform 2.

[0282] It should be noted that, FIG. 14The self-locking assembly 4 in the motor 10 shown in the embodiment can include at least part of the technical features of the self-locking assembly 4 in the foregoing embodiments, FIG. 14 The driving assembly 3 in the motor 10 shown in the embodiment can include at least part of the technical features of the driving assembly 3 in the foregoing embodiments, FIG. 14 The detection assembly 5 in the motor 10 shown in the embodiment can include at least part of the technical features of the detection assembly 5 in the foregoing embodiments, FIG. 14 The moving platform 2 in the motor 10 shown in the embodiment can include at least part of the technical features of the moving platform 2 in the foregoing embodiments, FIG. 14 The fixed base 1 in the motor 10 shown in the embodiment can include at least part of the technical features of the fixed base 1 in the foregoing embodiments.

[0283] Please refer to FIG. 15 , FIG. 15 is FIG. 7A The structure of the self-locking assembly 4 shown in the embodiment is schematically shown in another embodiment. FIG. 15 The self-locking assembly 4 shown in the embodiment can include FIG. 7C Most of the technical features of the self-locking assembly 4 shown in the embodiment are described above, and only the different parts of the two are described here, and the same parts are not described again.

[0284] In some embodiments, the magnetic pole surface of the magnet 422 can be perpendicular to the axis of the pin shaft 41, the coil 421 can be arranged on one side of the magnetic pole surface of the magnet 422, and the winding plane of the coil 421 is parallel to the magnetic pole surface of the magnet 422, and the coil 421 is used to generate Lorentz force under the action of the magnet 422 after being energized. Within the movement range of the pin shaft 41 extending and retracting, the magnet 422 and the coil 421 are at least partially arranged opposite to each other.

[0285] In the embodiment, the coil 421 can generate Lorentz force under the magnetic field of the magnet 422 after being energized, and since the coil 421 is fixed on the mounting seat 44, the magnet 422 is pushed to extend or pulled back to retract under the reaction force of the Lorentz force, thereby realizing the extension and retraction of the pin shaft 41.

[0286] It should be noted that the magnetic pole surface of the magnet 422 can be FIG. 15 N-pole and S-pole shown in the figure, and it can be understood that the N-pole and S-pole of the magnet 422 can be interchanged in other embodiments.

[0287] The coil 421 can be a racetrack coil, and the coil 421 generates Lorentz force under the magnetic field of the magnet 422 after being energized, so as to drive the pin shaft 41 to extend and retract by means of the Lorentz force.

[0288] Please refer to FIG. 16 , FIG. 16 isFIG. 7A Structure diagram of the self-locking assembly 4 along line B-B in some embodiments. FIG. 16 The self-locking assembly 4 in the embodiments can include FIG. 7C Most of the technical features of the self-locking assembly 4 in the embodiments are described below, only the different parts of the two are described, and the same parts are not described again.

[0289] In some embodiments, the magnetic pole surface of the magnet 422 is perpendicular to the axis of the pin shaft 41, and the coil 421 is arranged on one side of the magnetic pole surface of the magnet 422, and the coil 421 is used to generate a magnetic force along the axis direction of the pin shaft 41 after being energized. Among them, the magnet 422 and the coil 421 constitute a pair of suction type structure, so as to realize the attraction and repulsion of the magnet 422 by changing the magnetic field direction of the coil 421, so as to realize the extension and retraction of the pin shaft 41.

[0290] In the embodiment, the coil 421 can generate a magnetic field on the winding surface facing the magnet 422 after being energized. According to the direction of the energized current, the coil 421 can act on the magnet 422 to generate a magnetic repulsion force to push the magnet 422, or generate a magnetic attraction force to pull the magnet 422, thereby realizing the extension and retraction of the pin shaft 41.

[0291] It should be noted that the magnetic pole surface of the magnet 422 can be FIG. 16 The N pole and the S pole shown can be understood that in other embodiments, the N pole and the S pole of the magnet 422 can be interchanged.

[0292] It should be noted that the self-locking assembly 4 provided by the embodiments of the present application can be completely decoupled from other parts in the camera module 100, and the self-locking assembly 4 can be effectively transplanted to other use scenarios that require self-locking.

[0293] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and any combination of features in different embodiments is also within the protection scope of the present application, that is, the above described multiple embodiments can also be combined according to actual needs.

[0294] It should be noted that all the above drawings are exemplary diagrams of the present application, and do not represent the actual size of the product. The size ratio relationship between the parts in the drawings is not limited to the actual product of the present application.

[0295] The above is only some embodiments and implementation ways of the present application, the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A motor (10), characterized in that, It includes a fixed base (1), a motion platform (2), a drive assembly (3), and a self-locking assembly (4); The motion stage (2) is connected to the fixed base (1). The motion stage (2) is used to carry the optical element (201) and drive the optical element (201) to move relative to the fixed base (1). The fixed base (1) is provided with a plurality of pin holes (11). The plurality of pin holes (11) are spaced apart along the movement direction of the motion stage (2). The motor (10) has a light inlet hole. The axial direction of the light inlet hole intersects with the movement direction of the motion stage (2). The drive assembly (3) connects the motion platform (2) and the fixed base (1) and is used to drive the motion platform (2) to move relative to the fixed base (1); The self-locking assembly (4) is installed on the motion platform (2). The self-locking assembly (4) includes a magnetic drive (42), a pin (41), and an extended magnetic suction component (43). The magnetic drive component (42) is used to drive the pin (41) to extend relative to the moving platform (2) and insert into the pin hole (11) to lock the moving platform (2) and the fixed base (1). The extended magnetic suction component (43) is used to lock the pin (41) in the pin hole (11).

2. The motor (10) as claimed in claim 1, characterized in that, The magnetic drive (42) is also used to drive the pin (41) to retract relative to the moving platform (2) to disengage from the pin hole (11) in order to unlock the moving platform (2) from the fixed base (1).

3. The motor (10) as described in claim 1 or 2, characterized in that, The motion platform (2) has a bearing surface (21), which faces away from the base plate (14) of the fixed base (1) and is inclined relative to the base plate (14) of the fixed base (1). The bearing surface (21) is used to support the optical element (201). The motion platform (2) has a receiving space (22) located between the bearing surface (21) and the base plate (14) of the fixed base (1), for receiving the self-locking component (4).

4. The motor (10) as described in claim 1 or 2, characterized in that, The drive assembly (3) and the pin hole (11) are located on different sides of the motion platform (2).

5. The motor (10) as described in claim 1 or 2, characterized in that, The drive assembly (3) includes a drive coil (31) and a drive magnet (32), one of which is connected to the fixed base (1) and the other is connected to the motion platform (2). The magnetic pole face of the driving magnet (32) is not perpendicular to the direction of movement of the pin (41).

6. The motor (10) as claimed in claim 1 or 2, characterized in that, The motor (10) also includes a detection component (5), which extends along the movement direction of the motion platform (2) relative to the fixed base (1) and is used to detect the position of the fixed base (1) on the motion platform (2).

7. The motor (10) as claimed in claim 6, characterized in that, The detection component (5) includes a tunnel magnetoresistive device (51) and a magnetic grating (52). The tunnel magnetoresistive device (51) is mounted on the motion stage (2), and the magnetic grating (52) is mounted on the fixed base (1). The magnetic grating (52) extends along the motion direction of the motion stage (2) relative to the fixed base (1), and the tunnel magnetoresistive device (51) and the magnetic grating (52) are arranged opposite to each other. In this context, along the direction of movement of the moving platform (2) relative to the fixed base (1), the self-locking component (4) and the magnetic grating (52) are spaced apart.

8. The motor (10) as claimed in claim 6, characterized in that, The self-locking component (4) is used to receive control commands and drive the pin (41) to retract to disengage from the pin hole (11). The driving component (3) is used to drive the motion platform (2) to move relative to the fixed base (1) after the pin (41) disengages from the pin hole (11). The detection component (5) is used to detect the position information of the fixed base (1) during the movement of the motion platform (2) relative to the fixed base (1). The position information of the fixed base (1) is used to assist in the alignment of the pin (41) and the pin hole (11). After the pin (41) is aligned with the pin hole (11), the self-locking assembly (4) is used to drive the pin (41) to extend and insert into the pin hole (11), and the driving assembly (3) is used to stop driving the motion platform (2) after the pin (41) is inserted into the pin hole (11).

9. The motor (10) as described in any one of claims 1, 2, 7 and 8, characterized in that, Along the direction of movement of the moving platform (2) relative to the fixed base (1), the distance between two pin holes (11) located at both ends of the plurality of pin holes (11) is greater than or equal to 9000 μm; And / or, the load capacity of the motion platform (2) is greater than or equal to 2000 mg.

10. The motor (10) as claimed in any one of claims 1, 2, 7 and 8, characterized in that, The magnetic drive unit (42) includes a coil (421) and a magnet (422), and the protruding magnetic suction unit (43) is located on the side of the magnet (422) facing the pin hole (11); The coil (421) is fixed to the motion platform (2), and the magnet (422) is fixedly connected to the pin (41). The coil (421) is used to pass a first current to push the magnet (422) to drive the pin (41) to extend, and the coil (421) is also used to pass a second current to pull the magnet (422) to drive the pin (41) to retract; The direction of the second current is opposite to the direction of the first current.

11. The motor (10) as claimed in any one of claims 1, 2, 7 and 8, characterized in that, The magnetic drive unit (42) includes a coil (421) and a magnet (422), and the protruding magnetic suction unit (43) is located on the side of the magnet (422) facing the pin hole (11); The coil (421) is fixed to the moving platform (2), the magnet (422) is fixedly connected to the pin (41), the coil (421) is ring-shaped, and the magnet (422) is coaxially arranged with the coil (421); When the pin (41) is in the retracted state, the end of the magnet (422) away from the protruding magnetic member (43) is located inside the coil (421), and the end of the magnet (422) near the protruding magnetic member (43) is exposed in the coil (421). And / or, when the pin (41) is in the extended state, the end portion of the magnet (422) away from the extended magnetic member (43) is located inside the coil (421).

12. The motor (10) as claimed in any one of claims 1, 2, 7 and 8, characterized in that, The magnetic drive unit (42) includes a coil (421) and a magnet (422), and the protruding magnetic suction unit (43) is located on the side of the magnet (422) facing the pin hole (11); The coil (421) is fixed to the moving platform (2), the magnet (422) is fixedly connected to the pin (41), the coil (421) is ring-shaped, and the magnet (422) is coaxially arranged with the coil (421); When the pin (41) is in the retracted state, the ratio of the length of the portion of the magnet (422) exposed from the coil (421) to the length of the magnet (422) is in the range of 20% to 60%. And / or, when the pin (41) is in the extended state, the ratio of the length of the portion of the magnet (422) exposed from the coil (421) to the length of the magnet (422) is in the range of 50% to 90%.

13. The motor (10) as claimed in claim 11, characterized in that, The ratio of the outer diameter of the magnet (422) to the outer diameter of the coil (421) is in the range of 40% to 90%.

14. The motor (10) as claimed in claim 10, characterized in that, The pin (41) is disposed through the magnet (422), and the pin (41) and the magnet (422) are coaxially disposed.

15. The motor (10) as claimed in claim 10, characterized in that, The magnetic pole face of the magnet (422) is perpendicular to the axis of the pin (41). The coils (421) are spaced apart on one side of the magnetic pole face of the magnet (422), and the winding plane of the coils (421) is parallel to the magnetic pole face of the magnet (422). The coils (421) are used to generate Lorentz force under the action of the magnet (422) after being energized. Within the range of motion of the pin (41) extending and retracting, the magnet (422) is at least partially opposite the coil (421).

16. The motor (10) as claimed in claim 10, characterized in that, The magnetic pole face of the magnet (422) is perpendicular to the axis of the pin (41). The coils (421) are spaced apart on one side of the magnetic pole face of the magnet (422). The coils (421) are used to generate magnetic force along the axis of the pin (41) after being energized.

17. The motor (10) as claimed in claim 10, characterized in that, The self-locking assembly (4) also includes a mounting base (44) which is mounted on the motion platform (2). The mounting base (44) includes a bottom wall (441), a first side wall (442), and a second side wall (443). The bottom wall (441) is mounted on the motion platform (2). The first side wall (442) and the second side wall (443) are located on the same side of the bottom wall (441) and connected to opposite ends of the bottom wall (441). The first side wall (442) is closer to the pin hole (11) than the second side wall (443). The bottom wall (441), the first side wall (442), and the second side wall (443) enclose a mounting space (444). The mounting space (444) accommodates at least a portion of the magnetic drive (42) and the pin (41), wherein the coil (421) is fixed to the bottom wall (441) and / or the second side wall (443). The first sidewall (442) is provided with a first guide hole (4421), and the second sidewall (443) is provided with a second guide hole (4431). The first guide hole (4421) and the second guide hole (4431) are both connected to the mounting space (444). The inner diameter of the first guide hole (4421) and the inner diameter of the second guide hole (4431) are both greater than the outer diameter of the pin (41) and smaller than the outer diameter of the magnet (422). The first guide hole (4421) and the second guide hole (4431) are used to pass through the pin (41).

18. The motor (10) as claimed in claim 17, characterized in that, The self-locking assembly (4) further includes a balancing magnetic attractor (46), which is disposed on the side of the bottom wall (441) opposite to the mounting space (444); The magnet (422) covers at least a portion of the balancing magnetic attractor (46) during movement.

19. The motor (10) as claimed in any one of claims 1, 2, 7, 8, 13 to 18, characterized in that, The self-locking assembly (4) further includes a retractable magnetic chuck (45) for locking the pin (41) in the motion platform (2) after the pin (41) retracts and disengages from the pin hole (11).

20. The motor (10) as claimed in any one of claims 1, 2, 7, 8, 13 to 18, characterized in that, The self-locking assembly (4) also includes a buffer (47) which surrounds the portion of the pin (41) for insertion into the pin hole (11).

21. A camera module (100), characterized in that, The device includes a lens (20) and a motor (10) as claimed in any one of claims 1 to 19, wherein the lens (20) includes an optical element (201) and a lens group (202), the optical element (201) being mounted on the motion stage (2) of the motor (10), and the lens group (202) being located on the image side of the optical element (201).

22. The camera module (100) as described in claim 21, characterized in that, The lens (20) further includes a first lens group (204) and a second lens group (205), wherein the first lens group (204) and the second lens group (205) are spaced apart along the movement direction of the motion platform (2) of the motor (10); The motion stage (2) is used to move the optical element (201) to a first position to receive light passing through the first lens group (204); The motion stage (2) is also used to move the optical element (201) to a second position to receive light passing through the second lens group (205).

23. An electronic device (1000), characterized in that, It includes a housing (300) and a camera module (100) as described in claim 21 or 22, the camera module (100) being mounted on the housing (300).

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