Motors, camera modules and electronic devices

Abstract

This application provides a motor, a camera module, and an electronic device. The motor includes a fixed base, a motion stage, a drive assembly, and a self-locking assembly. By employing a coaxial dual-sided output design for the self-locking assembly, the stability of the locking between the motion stage and the fixed base is improved, and simultaneous locking and unlocking from both sides of the self-locking assembly is possible, which enhances the smoothness of locking and unlocking and reduces the risk of impact.

Description

Technical Field

[0001] This application relates to the field of shooting equipment technology, and in particular to a motor, camera module and electronic equipment. Background Technology

[0002] In recent years, with the development of optical imaging technology, people have increasingly higher requirements for the camera function of portable electronic devices, requiring the camera modules of electronic devices to achieve shooting at different focal lengths, such as telephoto shooting and macro shooting.

[0003] Typically, camera modules switch between different focal length shooting modes by moving a prism. However, due to the lack of self-locking capability or poor self-locking capability of current camera modules, their reliability is poor, and they are prone to collision risks when shooting at different focal lengths. Summary of the Invention

[0004] This application provides a motor, a camera module, and an electronic device. The motor includes a fixed base, a motion stage, a drive assembly, and a self-locking assembly. By employing a coaxial dual-sided output design for the self-locking assembly, the stability of the locking between the motion stage and the fixed base is improved, and simultaneous locking and unlocking from both sides of the self-locking assembly is possible, which enhances the smoothness of locking and unlocking and reduces the risk of impact.

[0005] In a first aspect, this application provides a motor. The motor includes a fixed base, a motion platform, a drive assembly, a self-locking assembly, and a stop member; the self-locking assembly is fixedly installed on the motion platform and includes a drive member, a first telescopic member, and a second telescopic member. The drive member includes a body and an output shaft. The output shaft includes a first end and a second end opposite to each other, passing through the body. The first end and the second end of the output shaft are respectively exposed on opposite sides of the body. The first telescopic member is connected to the first end of the output shaft, and the second telescopic member is connected to the second end of the output shaft. The body is used to drive the output shaft to rotate, thereby causing the first and second telescopic members to extend and retract simultaneously. The fixed base is provided with a first locking hole and a second locking hole, which are directly opposite each other and located on opposite sides of the drive component. The drive component is used to drive the moving platform to move relative to the fixed base to align the first telescopic member with the first locking hole and the second telescopic member with the second locking hole. When the motor is in the locked state, the first telescopic member extends into the first locking hole and the second telescopic member extends into the second locking hole. The stop member prevents the first telescopic member from continuing to move toward the first locking hole. When the motor is in the unlocked state, the first telescopic member is located outside the first locking hole and the second telescopic member is located outside the second locking hole.

[0006] In this application, by inserting the first telescopic member into the first locking hole and the second telescopic member into the second locking hole, a physical and mechanical stable self-locking mechanism can be achieved. That is, the self-locking assembly can lock the moving platform and the fixed base, thereby achieving motor self-locking and stabilizing the lens. This helps improve the reliability of the lens when the electronic device is shaken or dropped. For example, when the first telescopic member extends into the first locking hole and the second telescopic member extends into the second locking hole, locking the moving platform and the fixed base ensures the stability of the lens when the electronic device is shaken by the user, and the stability of the lens when the electronic device is dropped, such as when the electronic device is dropped from a height of 1 meter, 1.2 meters, 1.4 meters, or higher.

[0007] In this application, since the driving component can drive the first telescopic component and the second telescopic component to extend and retract simultaneously, so as to realize that the first telescopic component moves in opposite directions or in opposite directions at the same time, it can realize simultaneous locking and unlocking of both sides of the self-locking component, which is beneficial to improving the smoothness of locking and unlocking.

[0008] In this application, by setting a stop, the first telescopic member can be limited in the locked state, thereby preventing it from continuing to move towards the first locking hole under external forces such as falling or impact. This prevents damage to the first telescopic member, the second telescopic member, and the driving member, and also prevents collisions between the first telescopic member and the detection chip, thus avoiding damage to the detection chip. This design overcomes the problem that the limited installation space of the motor results in a small output torque of the driving member, making it impossible to achieve self-locking between the driving member and the first and second telescopic members. It also overcomes the problem that the detection chip cannot be continuously powered to perform closed-loop detection of the position of the first screw due to power consumption limitations. Therefore, the stop not only protects the components in the motor and improves the overall resistance to external impacts, but also reduces power consumption through physical stopping, thereby saving power.

[0009] In some possible implementations, the first telescopic member includes a first screw and a first nut; the first screw is connected between the first end of the output shaft and the first nut, the first screw passes through the first nut and is threadedly connected to the first nut; the first nut is fixedly mounted on the motion platform; the driving member is used to drive the first screw to rotate relative to the first nut, so as to drive the first screw to extend or retract relative to the motion platform; when the motor is in the locked state, the first screw extends into the first locking hole, and the stop member prevents the first screw from continuing to extend relative to the first motion platform.

[0010] In this implementation, the driving component can drive the first screw to rotate relative to the first nut, enabling the first screw to move relative to the first nut in a third direction, thus achieving extension and retraction. Since the first screw and the first nut in the first telescopic component are connected by a nut, the first telescopic component can stably remain at any position after the driving component stops, achieving power-off locking of the self-locking assembly, which is beneficial for energy saving. Because power-off locking does not require external force, when the driving component is energized, there is no need to overcome external forces other than the friction between the first screw and the first nut, reducing the driving force required to drive the first screw to move relative to the first nut, further contributing to energy saving. Furthermore, since the driving component drives the first screw to rotate, the first screw and the first nut can convert rotation into linear motion. Therefore, when the self-locking assembly is in power-off locking, breaking the lock requires applying a corresponding rotational force to the first screw, making the locked state of the self-locking assembly difficult to break, thus improving the stability of the self-locking assembly when power-off locked.

[0011] In some possible implementations, the first screw includes a first part and a second part. The first part of the first screw is closer to the drive member relative to the second part of the first screw. The first part of the first screw is provided with a first external thread. The maximum outer diameter of the second part of the first screw is smaller than the maximum outer diameter of the first part of the first screw. A stop member is installed on the motion platform. The stop member is located on the side of the first nut away from the drive member. The stop member has a first through hole. The inner diameter of the first through hole is larger than the maximum outer diameter of the second part of the first screw and smaller than the maximum outer diameter of the first part of the first screw. When the motor is in the locked state, a portion of the second part of the first screw extends into the first locking hole.

[0012] In this implementation, the first screw is threadedly connected to the first nut via a first part, and engages with the first locking hole via a second part. A stop member allows the second part of the first screw to pass through the first through hole of the stop member, enabling the first screw to extend and retract relative to the first locking hole, thus locking and unlocking the motor. Furthermore, the stop member at the first through hole limits the first part of the first screw, preventing it from passing through. This configuration, with the second part of the first screw extending into the first locking hole, keeps the motor in a locked state, providing a stable stop and preventing further movement of the first screw towards the first locking hole, thereby protecting components such as the drive unit and detection chip.

[0013] In some possible implementations, when the motor is in the unlocked state, at least a portion of the second part of the first screw is located in the first through hole to prevent the first screw from retracting too much. This prevents the first screw from being blocked by the stop after retraction due to deviations in the assembly of the first nut, the first screw, and the stop, thereby preventing the first screw from jamming.

[0014] In some possible implementations, the first part of the first screw has a first transmission groove on the end face away from the second part of the first screw; the self-locking assembly also includes a first transmission shaft, which includes a first part and a second part. The first part of the first transmission shaft is fixedly connected to the first end of the output shaft, and at least a portion of the second part of the first transmission shaft is located in the first transmission groove. The second part of the first transmission shaft abuts against the side wall of the first transmission groove under the drive of the output shaft to drive the first screw to rotate.

[0015] In this implementation, the first drive shaft serves to connect the first end of the output shaft to the first telescopic member. Since the output shaft is the structure of the drive member itself, the output of the drive member may be limited by the shape of the output shaft. By designing the shape of the first drive shaft, the form of the drive member's transmission connection can be changed so that the drive member can better match the first telescopic member.

[0016] In this implementation, the driving component can rotate via the output shaft to drive the first transmission shaft to rotate. The rotation of the first transmission shaft drives the first screw to rotate relative to the first nut. Under the drive of the first transmission shaft, the first screw can move relative to the first nut in a third direction to achieve extension and retraction. Since the first screw and the first nut in the first telescopic component are connected by a nut, the first telescopic component can remain stably in any position after the driving component stops, thus achieving power-off locking of the self-locking component, which is beneficial for energy saving. Since power-off locking does not require external force, when the driving component is energized, there is no need to overcome external forces other than the friction between the first screw and the first nut, reducing the driving force required to drive the first screw to move relative to the first nut, which is also beneficial for energy saving. In addition, since the driving component drives the first screw through rotation output, the first screw and the first nut can cooperate to convert rotation into linear motion. Therefore, when the self-locking component is in power-off locking, breaking the lock requires applying a corresponding rotational force to the first screw, making the locked state of the self-locking component difficult to break and improving the stability of the self-locking component when it is in power-off locking.

[0017] In some possible implementations, when the motor is in the unlocked state, the second part of the first drive shaft abuts against the bottom wall of the first drive groove. At this time, the end face of the second part of the first drive shaft forms a limit when the first screw retracts, which can prevent the first screw from retracting too much.

[0018] In some possible implementations, the outer diameter of the first portion of the first drive shaft is larger than the outer diameter of the second portion of the first drive shaft. A first limiting surface is formed at the connection point between the first portion of the first drive shaft and the second portion, and this first limiting surface protrudes from the second portion of the first drive shaft. When the motor is in the unlocked state, the first limiting surface abuts against the end face of the first portion of the first screw that is away from the second portion of the first screw. At this time, the first limiting surface acts as a limit when the first screw retracts, preventing excessive retraction of the first screw.

[0019] In some possible implementations, the first nut has a first threaded hole, through which the first screw passes; a stop is disposed at the end of the first screw near the drive member, and the outer diameter of the stop is larger than the inner diameter of the first threaded hole; when the motor is in the locked state, the stop abuts against the first nut.

[0020] In this implementation, a stop is placed at the end of the first screw, which can be used to limit the movement by utilizing the dimensional relationship between the stop and the first threaded hole of the first nut, thereby preventing the first screw from extending too far relative to the first nut. The second part of the first screw extends into the first locking hole, so that the motor is in a locked state, which can provide a stable stop limit for the motor and prevent the first screw from moving further toward the first locking hole, thereby protecting components such as the drive unit and the detection chip.

[0021] In some possible implementations, the stop and the first screw are integrated into one structure to improve the overall structural stability of the first screw and the stop, which is beneficial to improving the strength of the limit formed between the stop and the first nut, and thus improving the reliability of the motor in the locked state.

[0022] In some possible implementations, the end face of the first screw facing the driving member is provided with a first transmission groove; the self-locking assembly also includes a first transmission shaft, which includes a first part and a second part connected together. The first part of the first transmission shaft is fixedly connected to the first end of the output shaft, and the second part of the first transmission shaft has a first transmission surface located in the transmission groove. The first transmission surface abuts against the side wall of the first transmission groove under the rotation of the first transmission shaft to drive the first screw to rotate.

[0023] In this implementation, the design of the first transmission groove enables the first transmission shaft to form a transmission connection with the first screw, thereby forming a transmission chain. The first end of the output shaft can drive the first screw to rotate by driving the first transmission shaft to rotate.

[0024] In some possible implementations, the end face of the first part of the first drive shaft is provided with a first mounting groove, the first end of the output shaft is installed in the first mounting groove, and the opposite sides of the first end of the output shaft are fixedly connected to the side wall of the first mounting groove.

[0025] In this implementation, by fixing the opposite sides of the first end of the output shaft to the side wall of the first mounting groove, it is beneficial to improve the balance of the connection between the first end of the output shaft and the first drive shaft, making the assembly connection between the first end of the output shaft and the first drive shaft more stable and avoiding the problem of the first drive shaft tilting during assembly.

[0026] The opposite sides of the first end of the output shaft can be welded to the sidewall of the first mounting groove. For example, laser welding can be used to weld the first end of the output shaft to the sidewall of the first mounting groove. The first end of the output shaft can be inserted into the first mounting groove, and the first part of the first drive shaft can be penetrated by laser welding. The first welding material can be used to weld the first end of the output shaft to the first part of the first drive shaft.

[0027] In some possible implementations, there is a first assembly gap between the first transmission surface and the sidewall of the first transmission groove, and the size d0 of the first assembly gap satisfies: 0 < d0 ≤ 0.2 mm.

[0028] In this implementation, a first assembly gap can be provided between the first transmission surface and the sidewall of the first transmission groove to achieve assembly tolerance, thereby preventing jamming during the rotation of the first screw driven by the transmission shaft. The dimension d0 of the first assembly gap satisfies the above relationship, which is beneficial for forming assembly tolerance, preventing jamming during the rotation of the first screw driven by the first transmission shaft, and also preventing excessive gap from causing lag in the transmission between the first transmission shaft and the first screw.

[0029] In some possible implementations, the second telescopic component includes a second screw and a second nut; the second screw is connected between the second end of the output shaft and the second nut, the second screw passes through the second nut and is threadedly connected to the second nut; the second nut is fixedly mounted on the motion platform; the driving component is used to drive the second screw to rotate relative to the second nut, so as to drive the second screw to extend or retract relative to the motion platform; when the motor is in the locked state, the first screw extends into the first locking hole and the second screw extends into the second locking hole.

[0030] In this implementation, the driving component can rotate via the output shaft to drive the second transmission shaft to rotate. The rotation of the second transmission shaft drives the second screw to rotate relative to the second nut. Under the drive of the second transmission shaft, the second screw can move relative to the second nut in a third direction to achieve extension and retraction. Since the second screw and the second nut in the second telescopic component are connected by a nut, the second telescopic component can stably remain at any position after the driving component stops, thus achieving power-off locking of the self-locking assembly, which is beneficial for energy saving. Because power-off locking does not require external force, when the driving component is energized, there is no need to overcome external forces other than the friction between the second screw and the second nut, reducing the driving force required to drive the second screw to move relative to the second nut, further contributing to energy saving. Furthermore, since the driving component drives the second screw through rotational output, and the second screw and the second nut cooperate to convert rotation into linear motion, when the self-locking assembly is in power-off locking, breaking the lock requires applying a corresponding rotational force to the screw. This makes the locked state of the self-locking assembly difficult to break, improving the stability of the self-locking assembly when it is in power-off locking.

[0031] In some possible implementations, the first nut has a first threaded hole with a first internal thread, and the first screw has a first external thread, passing through the first threaded hole and being threadedly connected to the first internal thread; the second nut has a second threaded hole with a second internal thread, and the second screw has a second external thread, passing through the second threaded hole and being threadedly connected to the second internal thread; the first external thread and the second external thread have opposite thread directions, and the first internal thread and the second internal thread have opposite thread directions, so that the drive component can drive the first screw and the second screw on both sides to extend or retract simultaneously via the output shaft.

[0032] In some possible implementations, the first external thread has a first thread start point. In a plane perpendicular to the axis of the first screw and passing through the first thread start point, the first thread start point is connected to the center of the first screw to form a first line, and the first line has a first included angle with the axis of the first screw; the second external thread has a second thread start point. In a plane perpendicular to the axis of the second screw and passing through the second thread start point, the second thread start point is connected to the center of the second screw to form a second line, and the second line has a second included angle with the axis of the second screw; the difference between the first included angle and the second included angle is less than or equal to 2°.

[0033] In this implementation, by designing |α1-α2| to be less than or equal to 2°, it is beneficial to ensure that the feed rates of the first and second screws on both sides of the driving component tend to be consistent under the drive of the driving component. Here, α1 is the first included angle, and α2 is the second included angle.

[0034] In some possible implementations, the first internal thread has a third thread start point. In a plane perpendicular to the axis of the first nut and passing through the third thread start point, the third thread start point is connected to the center of the first nut to form a third line, and the third line has a third included angle with the axis of the first nut; the second internal thread has a fourth thread start point. In a plane perpendicular to the axis of the second nut and passing through the fourth thread start point, the fourth thread start point is connected to the center of the second nut to form a fourth line, and the fourth line has a fourth included angle with the axis of the second nut; the difference between the third included angle and the fourth included angle is less than or equal to 2°.

[0035] In this implementation, by designing |α3-α4| to be less than or equal to 2°, it is beneficial to ensure that the feed rates of the first and second screws on both sides of the driving component tend to be consistent under the drive of the driving component. Here, α3 is the third included angle, and α4 is the fourth included angle.

[0036] In some possible implementations, the pitch of the first external thread is the same as the pitch of the second external thread; and / or, the pitch of the first internal thread is the same as the pitch of the second internal thread, so that when the drive member drives the first screw and the second screw to rotate, the stroke of the first screw relative to the first nut and the stroke of the second screw relative to the second nut are the same, that is, the feed amount of the first screw and the second screw is the same.

[0037] In some possible implementations, the motor also includes a self-locking detection component, which includes a first magnet and a detection chip; the first magnet is installed at the end of the first telescopic member away from the driving member, and the first magnet can move with the first telescopic member; the detection chip is installed on a fixed base, and the detection chip is positioned opposite the first magnet.

[0038] In this implementation, since the first magnet and the detection chip are positioned directly opposite each other, the detection chip can detect the position of the first magnet relative to the first locking hole when the first telescopic member moves relative to the first locking hole. This allows for accurate detection of the relative position of the first telescopic member with respect to the first locking hole, determining whether the first telescopic member has entered the first locking hole to lock or disengaged from the first locking hole to unlock, thus improving the accuracy of motor locking and unlocking. Furthermore, since the drive unit drives both the first and second telescopic members to extend and retract simultaneously, closed-loop control of the second telescopic member can be achieved simply by detecting the first telescopic member, thereby improving the stability of locking and unlocking the moving platform and the fixed base.

[0039] In some possible implementations, when the motor is in the locked state, the length of the first telescopic member extending into the first locking hole is greater than or equal to 0.5 mm to improve the stability of the locking between the moving platform and the fixed base. For example, the length of the first telescopic member extending into the first locking hole can be, but is not limited to, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or other values ​​greater than 0.5 mm.

[0040] In some possible implementations, the motor also includes a magnetic chuck assembly, which includes a second magnet and a magnetic chuck; the second magnet is installed at the end of the second telescopic member away from the drive member, and the second magnet can move with the second telescopic member; the magnetic chuck is installed on a fixed base, and the magnetic chuck and the second magnet are positioned opposite each other.

[0041] In this implementation, the design of the magnetic suction component enables magnetic attraction between the magnetic suction component and the second magnet. Thus, when the motor is locked, the magnetic suction component attracts the second magnet, thereby magnetically locking the second telescopic component to the fixed base. This prevents the second telescopic component from retracting due to external forces such as falling or impact, and improves the stability of the locking between the moving platform and the fixed base.

[0042] In some possible implementations, the motion stage has a bearing surface that faces away from the bottom wall of the fixed base and is inclined relative to the bottom wall of the fixed base. The bearing surface is used to support optical components. The motion stage has a receiving space located between the bearing surface and the bottom wall of the fixed base, and a self-locking assembly is installed in the receiving space.

[0043] In this implementation, by placing the self-locking component and the optical element on opposite sides of the bearing surface of the motion stage, and by accommodating the self-locking component through the accommodating space, the space occupied by the self-locking component is utilized within the space of the motion stage itself, thereby reducing the additional space occupied by the self-locking component, improving the space utilization of the motor, and facilitating the miniaturization of the motor.

[0044] In some possible implementations, the motion platform has a first limiting rib and a second limiting rib, both of which are located on the inner wall of the receiving space. The first limiting rib and the second limiting rib are spaced apart. The first limiting rib has a V-shaped or U-shaped structure, with its opening facing the opening of the receiving space. The second limiting rib also has a V-shaped or U-shaped structure, with its opening facing the opening of the receiving space. The machine body includes a housing, a first bearing, and a second bearing. The first bearing is installed at the first end of the housing, and the second bearing is installed at the second end of the housing. The output shaft passes through the first bearing, the housing, and the second bearing. The first bearing is installed on the first limiting rib, and the second bearing is installed on the second limiting rib.

[0045] In this implementation, the first limiting rib has a V-shaped or U-shaped structure, which can be used to position the first bearing. The second limiting rib has a V-shaped or U-shaped structure, which can be used to position the second bearing. Through the design of the first and second limiting ribs, the overall positioning and installation of the driving component can be achieved, which can solve the problem of tilting during the assembly of the driving component, thereby improving the stability of the self-locking component during operation.

[0046] In some possible implementations, the motion platform has a first limiting hole and a second limiting hole, which are spaced apart and both connect to the receiving space; a first end plate and a second end plate are respectively installed at both ends of the body, and the output shaft passes through the first end plate and the second end plate, with a portion of the first end plate located in the first limiting hole and a portion of the second end plate located in the second limiting hole.

[0047] In this implementation, the engagement of the first end plate with the first limiting hole and the engagement of the second end plate with the second limiting hole can further improve the stability of the installation between the drive component and the motion platform, thereby further reinforcing the installation of the drive component.

[0048] In some possible implementations, there are multiple first locking holes and multiple second locking holes. The arrangement direction of the multiple first locking holes is the same as that of the multiple second locking holes, and the first locking holes and the second locking holes are arranged facing each other.

[0049] In this implementation, by providing multiple first locking holes and multiple second locking holes, the moving platform can be locked at different positions on the fixed base. By arranging the first and second locking holes one-to-one, the moving platform can be simultaneously locked and unlocked from both sides via a self-locking component at each first locking hole.

[0050] In some possible implementations, the driving component is a stepper motor, which is beneficial for controlling the rotation of the output shaft of the driving component to achieve stable rotation of the output shaft, and also helps to ensure that the feed amount of the first and second screws on both sides is consistent.

[0051] Secondly, this application provides a camera module. The camera module includes a lens and a motor as described in the first aspect. The lens includes an optical element and a lens group. The optical element is mounted on the motion stage of the motor, and the lens group is located on the image side of the optical element. The optical element is used to change the light incident on the camera module along a first direction to propagate along a second direction.

[0052] In this application, optical elements are used to change the direction of light so that light entering through the aperture can be reflected to the image sensor. Specifically, the optical elements are used to change light incident along a first direction to propagate along a second direction. A motion stage can move the optical elements relative to the fixed base to change the position of the optical elements, thereby changing the aperture corresponding to the optical elements and the distance between the optical elements and the lens group, thus realizing the change of the lens focal length of the camera module, that is, realizing the switching of the lens focal length, for example, realizing the switching between telephoto shooting and macro shooting.

[0053] In some possible implementations, the lens also includes a first lens group and a second lens group, which are spaced apart; a motion stage is used to move the optical element to a first position to receive light passing through the first lens group; the motion stage is also used to move the optical element to a second position to receive light passing through the second lens group, wherein the second position is arranged in a second direction at an interval from the first position.

[0054] In this implementation, a moving stage drives the optical element to move, allowing the optical element to be combined with different lenses at different positions to form lenses with different focal lengths. For example, at a first position, a first lens group, optical element, and lens group can form a first lens with a first focal length; at a second position, a second lens group, optical element, and lens group can form a second lens with a second focal length. The first focal length is different from the second focal length. Therefore, by moving the optical element to different positions using a moving stage, different lenses can be switched, such as switching between a first lens and a second lens. Similarly, by setting more lens combinations, even more focal lengths can be switched.

[0055] Thirdly, this application provides an electronic device. The electronic device includes a housing and a camera module as described in any of the second aspects, the camera module being mounted on the housing.

[0056] In this application, the camera module can achieve more stable locking through the design of the motor, thereby improving the working stability of the camera module and thus improving the shooting stability of the electronic device. Attached Figure Description

[0057] Figure 1A This is a schematic diagram of the structure of the electronic device provided in some embodiments of this application;

[0058] Figure 1B yes Figure 1A A partially exploded structural diagram of the electronic device shown.

[0059] Figure 2A yes Figure 1A The diagram shows a cross-section of the electronic device along line AA in some embodiments;

[0060] Figure 2B yes Figure 1A A schematic diagram of the structure of the electronic device shown, cut along line AA, in some other embodiments;

[0061] Figure 3 yes Figure 2A The diagram shows the structure of the motor in some embodiments.

[0062] Figure 4 yes Figure 3 The diagram shows a partial structural schematic of the motor in some embodiments.

[0063] Figure 5 yes Figure 3 The diagram shows the motor in a locked state after being cut open along line BB in some embodiments.

[0064] Figure 6 yes Figure 3 The diagram shows the motor in an unlocked state after being cut open at line BB in some embodiments.

[0065] Figure 7 yes Figure 3 The diagram shows the motor in a locked state after being cut along line BB in some other embodiments.

[0066] Figure 8A yes Figure 3 The diagram shows a structural schematic of the stator in some embodiments of the motor.

[0067] Figure 8B yes Figure 8A A schematic diagram of the stator structure from another perspective;

[0068] Figure 9 yes Figure 8A The stator shown is a partial structural exploded view in some embodiments.

[0069] Figure 10 yes Figure 8A The diagram shows the structure of the stator after being cut along line CC in some embodiments;

[0070] Figure 11 yes Figure 3 The diagram shows a schematic representation of the mover in some embodiments of the motor.

[0071] Figure 12 yes Figure 11 The diagram shows a partial structural breakdown of the mover in some embodiments.

[0072] Figure 13A yes Figure 11The diagram shows a schematic representation of the moving platform in some embodiments of the mover.

[0073] Figure 13B yes Figure 13A A schematic diagram of the motion platform shown from another perspective;

[0074] Figure 14A yes Figure 13A A schematic diagram of the structure of the motion platform shown, cut along line DD at a certain angle;

[0075] Figure 14B yes Figure 13A A schematic diagram of the structure of the motion platform shown, cut along line DD at another angle;

[0076] Figure 15 yes Figure 13A The diagram shows the structure of the motion platform cut along line EE in some embodiments.

[0077] Figure 16A yes Figure 12 A schematic diagram of the structure of the first rack in the moving part in some embodiments is shown;

[0078] Figure 16B yes Figure 12 A schematic diagram of the structure of the second rack in the moving part in some embodiments is shown;

[0079] Figure 17A yes Figure 12 The diagram shows a structural schematic of the driving element in some embodiments of the mover;

[0080] Figure 17B yes Figure 17A The diagram shows a partial structural exploded view of the drive component in some embodiments.

[0081] Figure 18A yes Figure 17A A schematic diagram of the drive component in some embodiments of the self-locking assembly shown;

[0082] Figure 18B yes Figure 18A A schematic diagram of the drive component shown from another perspective;

[0083] Figure 19 yes Figure 18A The diagram shows the structure of the drive component cut along line FF in some embodiments.

[0084] Figure 20 yes Figure 17A The diagram shows the structure of the first and second drive shafts in some embodiments of the self-locking assembly.

[0085] Figure 21A yes Figure 20 The first and second drive shafts shown are mounted on, in some embodiments, the first drive shaft and the second drive shaft shown. Figure 18A The diagram shows the structure of the driving component.

[0086] Figure 21B yes Figure 21A The diagram shown is a structural schematic of some embodiments after the structure is cut open along line GG.

[0087] Figure 22 yes Figure 17A The diagram shows the structure of the first screw and the second screw in some embodiments of the self-locking assembly shown.

[0088] Figure 23A yes Figure 22 The first screw and the second screw shown are mounted on, in some embodiments, Figure 21A A structural diagram of the structure shown;

[0089] Figure 23B yes Figure 23A The diagram shows the structure after being cut along line HH in some embodiments.

[0090] Figure 24A yes Figure 17A The diagram shows the structure of the first nut and the second nut in some embodiments of the self-locking assembly shown.

[0091] Figure 24B yes Figure 24A The first nut and the second nut shown are cross-sectional schematic diagrams in some embodiments;

[0092] Figure 25A yes Figure 17A The diagram shows the structure of the self-locking component cut along line JJ in some embodiments;

[0093] Figure 25B yes Figure 25A A schematic diagram of the retraction of the first and second screws in the self-locking assembly shown;

[0094] Figure 26 yes Figure 11 The diagram shows the structure of the mover cut along line K1-K1 in some embodiments;

[0095] Figure 27A yes Figure 11 The diagram shows the structure of the mover after being cut along line K2-K2 in some embodiments;

[0096] Figure 27B yes Figure 11 The diagram shows the structure of the mover after being cut along line K3-K3 in some embodiments;

[0097] Figure 28 yes Figure 11 The diagram shows the structure of the mover cut along line LL in some embodiments;

[0098] Figure 29 yes Figure 11 The diagram shows the structure of the mover after being cut along line MM in some embodiments. Detailed Implementation

[0099] The embodiments of this application are described below with reference to the accompanying drawings.

[0100] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Multiple" refers to at least two.

[0101] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side", etc., are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0102] In the embodiments of this application, the relative positional relationships mentioned, such as parallel, perpendicular, and aligned, are defined in relation to the current technological level, rather than being absolutely strict. Slight deviations are permissible; approximations of parallelism, perpendicularity, or alignment are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0103] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0104] Please refer to the following: Figure 1A and Figure 1B , Figure 1A This is a schematic diagram of the structure of the electronic device 1000 provided in some embodiments of this application; Figure 1B yes Figure 1A A partial exploded view of the electronic device 1000 shown.

[0105] In some embodiments, the electronic device 1000 can be a mobile phone, tablet personal computer, laptop computer, smart screen, personal digital assistant (PDA), camera, personal computer, laptop computer, in-vehicle equipment, wearable device, augmented reality (AR) glasses, AR helmet, virtual reality (VR) glasses, or VR helmet, or other devices with camera functions. Figure 1A In this embodiment, the electronic device 1000 is a mobile phone as an example for description. Of course, other types of electronic devices 1000 can also adopt a similar structure, which will not be described in detail below.

[0106] Understandable Figure 1A and Figure 1B The electronic device 1000 is shown only schematically, and the actual shape, size, location, and construction of these components are not subject to change. Figure 1A and Figure 1B Due to limitations, electronic device 1000 may also include, compared to Figure 1A and Figure 1B More or fewer parts.

[0107] In some embodiments, the electronic device 1000 may include a camera module 100, a screen 200, and a housing 300. The screen 200 is used to display images, videos, etc. The screen 200 may include a light-transmitting panel 2001 and a display screen 2002. The light-transmitting panel 2001 and the display screen 2002 are stacked and fixedly connected. The light-transmitting panel 2001 mainly serves to protect the display screen 2002 from dust. The material of the light-transmitting panel 2001 includes, but is not limited to, glass. The display screen 2002 may 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 (MLED) display screen, a micro organic light-emitting diode (MOLED) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD), etc.

[0108] For example, the housing 300 is used to protect the internal electronic components of the electronic device 1000. The housing 300 may include a cover plate 3001, a frame 3002, and a decorative element 3003. The cover plate 3001 is located on the side of the display screen 2002 away from the light-transmitting panel 2001, and is 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. The frame 3002 may also be integrally formed with the cover plate 3001, that is, the frame 3002 and the cover plate 3001 are a single 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 the internal mounting space of the electronic device 1000. The internal installation space accommodates the display screen 2002. The cover plate 3001 can be made of materials such as metal, plastic, or glass. The cover plate 3001 can be a single-material panel or a panel structure composed of multiple materials and panels. The cover plate 3001 has a mounting opening 3004, and a decorative piece 3003 covers and is fixed to the mounting opening 3004.

[0109] 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 mounting 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.

[0110] 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 mounting space of the electronic device 1000.

[0111] The decorative element 3003 has a light-transmitting hole 3005. The light-transmitting hole 3005 allows light 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 3004, but the light-transmitting hole 3005 is provided on the cover plate 3001, allowing light to enter the light-receiving surface of the camera module 100.

[0112] In some examples, there can be multiple light-transmitting holes 3005, and different light-transmitting holes 3005 can correspond to different lenses 201. For example, different light-transmitting holes 3005 correspond to lenses 201 with different focal lengths.

[0113] In other examples, the number of light-transmitting holes 3005 can be one, and different areas of the light-transmitting hole 3005 can correspond to different lenses 201. For example, different areas of the light-transmitting hole 3005 correspond to lenses 201 with different focal lengths.

[0114] It should be noted that in the embodiments described below, a lens 201 with one focal length is set up with one light-transmitting hole 3005.

[0115] 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 avoidance structure. This light path avoidance structure 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.

[0116] In some embodiments, such as Figure 1B As shown, the electronic device 1000 may further include a circuit board 400 and an image processor 500. The circuit board 400 and image processor 500 are located within the internal mounting space of the electronic device 1000. The image processor 500 is fixed to and electrically connected to the circuit board 400. The image processor 500 is communicatively connected to the camera module 100. The image processor 500 is used to acquire and process image data from the camera module 100. The communication connection between the camera module 100 and the image processor 500 may include data transmission via electrical connections such as wiring, or data transmission via coupling. It is understood that the camera module 100 and the image processor 500 may also achieve a communication connection through other methods capable of data transmission.

[0117] In some embodiments, the electronic device 1000 may further include an analog-to-digital converter (also known 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 used to convert the signal generated by the camera module 100 into a digital image signal and transmit it to the image processor 500, whereby the image processor 500 processes the digital image signal and finally displays the image or video on the screen 200.

[0118] In some embodiments, the electronic device 1000 may further include a memory (not shown in the figure), which is communicatively connected to the image processor 500. The image processor 500 processes the digital image signal and then transmits the image to the memory, so that the image can be retrieved from the memory and displayed on the screen 200 at any time when it is needed to view the image later. In some embodiments, the image processor 500 may also compress the processed digital image signal before storing it in the memory to save memory space.

[0119] In some other embodiments, the electronic device 1000 may also not include the screen 200.

[0120] Understandable Figure 1A and Figure 1B The installation position of the camera module 100 in the illustrated embodiment of the electronic device 100 is merely illustrative, and this application does not strictly limit the installation position of the camera module 100. In some other embodiments, the camera module 100 may also be installed in other locations on the electronic device 1000, such as the upper middle or upper right corner of the back of the electronic device 1000. In some other embodiments, the electronic device 1000 may include a terminal body and an auxiliary component that can rotate, move, or be detached relative to the terminal body, and the camera module 100 may also be disposed on the auxiliary component.

[0121] Please refer to the following: Figure 2A and Figure 2B , Figure 2A yes Figure 1A The electronic device 1000 shown is cut along line AA in some embodiments as a structural schematic diagram. Figure 2B yes Figure 1A The diagram shows a cross-section of the electronic device 1000 along line AA in some other embodiments.

[0122] For ease of illustration, in this embodiment, the thickness direction (i.e., the light incident direction) of the camera module 100 is designated as the Z-axis, the movement direction of the moving platform 2 relative to the fixed base 1 is designated as the X-axis, and the width direction of the camera module 100 is designated as the Y-axis, establishing a Cartesian coordinate system. It is understood that in other embodiments, other references may be used to establish the coordinate system, which is not limited here. The Z-axis direction is also referred to as the first direction Z, the X-axis direction as the second direction X, and the Y-axis direction as the third direction Y.

[0123] In some embodiments, the camera module 100 may include a motor 10 and an optical system 20. The motor 10 may be used to carry some of the optical components in the optical system 20.

[0124] For example, the optical system 20 may include a lens 201 and an image sensor 202. The lens 201 may include an optical element 2011 and a lens group 2012. The optical element 2011 may be mounted on the motor 10, and the optical element 2011, the lens group 2012 and the image sensor 202 are arranged at intervals along the optical path of the lens 201.

[0125] In this embodiment, the optical element 2011 is used to change the direction of light so that the light entering through the light-transmitting hole 3005 can be reflected to the image sensor 202. Specifically, the optical element 2011 is used to change the light incident along the first direction Z to propagate along the second direction X.

[0126] The optical system 20 may further include a rear prism 203, which can be located between the lens group 2012 and the image sensor 202. By setting the rear prism 203, the optical path can be folded, which helps to increase the optical path length and shorten the length of the camera module 100, thus facilitating the miniaturization of the camera module 100. In addition, since the rear prism 203 can change the direction of light propagation, the image sensor 202 can be tilted, thereby reducing the height of the image sensor 202 (i.e., the dimension in the first direction Z), which in turn helps to reduce the shoulder height of the camera module 100, thus facilitating the thinner and lighter design of the camera module 100, which in turn facilitates the thinner and lighter design of the electronic device 1000.

[0127] For example, the motor 10 may include a fixed base 1, a motion stage 2, a drive assembly 3, a self-locking assembly 4, and a position detection assembly 5. The drive assembly 3 drives the motion stage 2 to move relative to the fixed base 1. The self-locking assembly 4 locks the motion stage 2 to the fixed base 1 to prevent movement of the motion stage 2 relative to the fixed base 1. The self-locking assembly 4 also unlocks the motion stage 2, allowing the drive assembly 3 to drive the motion stage 2 to move relative to the fixed base 1. The position detection assembly 5 detects the position of the motion stage 2 relative to the fixed base 1.

[0128] The motion stage 2 can be connected to the fixed base 1. The motion stage 2 is used to support the optical element 2011, and the drive assembly 3 is used to drive the motion stage 2 to move the optical element 2011 relative to the fixed base 1. The decorative part 3003 has multiple light-transmitting holes 3005, and the arrangement direction of the multiple light-transmitting holes 3005 is the same as the movement direction of the motion stage 2.

[0129] In this embodiment, the motion stage 2 can drive the optical element 2011 to move relative to the fixed base 1, thereby changing the position of the optical element 2011, thereby changing the light-transmitting hole 3005 corresponding to the optical element 2011, as well as the distance between the optical element 2011 and the lens group 2012, thereby realizing the change of the focal length of the lens 201 of the camera module 100, that is, realizing the switching of the focal length of the lens 201, for example, realizing the switching between telephoto shooting and macro shooting.

[0130] It should be noted that, Figure 2A and Figure 2B The driving component 3 is illustrated as a magnet and a coil. It can be understood that in some other embodiments, the driving component 3 can also be driven by a gear and rack, or by an elastic drive, etc., which is not limited here, as long as it can drive the moving platform 2 to move relative to the fixed base 1.

[0131] The load capacity of the motion stage 2 can be greater than or equal to 2000 mg. In this embodiment, the load capacity of the motion stage 2 refers to the weight it can bear on the optical element 2011. That is, the motion stage 2 provided in this application embodiment can drive the optical element 2011 with a weight greater than or equal to 2000 mg to move relative to the fixed base 1, realizing ultra-heavy load movement. For example, the load capacity of the motion stage 2 can be 2000 mg, 2500 mg, or 3000 mg, etc., so that the motion stage 2 can bear the prism.

[0132] It should be noted that the load capacity of the motion stage 2 can be greater than or equal to 2000mg, which means that the motion stage 2 has a large load capacity. It does not limit the optical element 2011 carried by the motion stage 2. Understandably, the motion stage 2 can also carry optical elements 2011 with lighter weight, such as optical elements 2011 weighing less than 2000mg.

[0133] In some other embodiments, the motion stage 2 may also carry the lens group 2012 to drive the lens group 2012 to move along the second direction X to achieve zooming or focusing.

[0134] In some examples, optical element 2011 may include a prism and a lens. The lens of optical element 2011 may be connected to the prism and move with the prism so that the focal length of lens 201 can be changed when optical element 2011 moves with the motion stage 2.

[0135] The lens of the optical element 2011 can be located on the object side of the prism of the optical element 2011, or it can be located on the image side of the prism of the optical element 2011. Alternatively, there can be multiple lenses, some of which are located on the object side of the prism of the optical element 2011 and others are located on the image side of the prism of the optical element 2011.

[0136] It should be noted that by changing the distance between the optical element 2011 and the lens group 2012, the focal length of the lens 201 can be changed, thereby achieving focal length switching of the lens 201. In some embodiments, within different focal length ranges, the focal length within that focal length range can be changed by moving the lens group 2012.

[0137] It should be noted that in some other embodiments, the optical element 2011 may also be a combination of a reflector and a lens, which is not limited here.

[0138] In other examples, lens 201 may also include a first lens group 2013 and a second lens group 2014. The first lens group 2013 and the second lens group 2014 may be spaced apart along the movement direction of the motion stage 2. The motion stage 2 is used to move the optical element 2011 to a first position (see reference). Figure 2A The motion stage 2 is used to receive light passing through the first mirror group 2013. It also moves the optical element 2011 to a second position (see reference). Figure 2B ), to receive light passing through the second mirror group 2014.

[0139] In this embodiment, the optical element 2011 is moved by the motion stage 2, allowing it to combine with different lens groups 2012 at different positions to form lenses 201 with different focal lengths. For example, at a first position, the first lens group 2013, the optical element 2011, and the lens group 2012 can form a first lens with a first focal length; at a second position, the second lens group 2014, the optical element 2011, and the lens group 2012 can form a second lens with a second focal length. The first focal length is different from the second focal length. Therefore, by moving the optical element 2011 to different positions by the motion stage 2, different lenses 201 can be switched, for example, switching between a first lens and a second lens. Similarly, by combining more lens groups 2012, even more focal lengths can be switched.

[0140] The first lens group 2013 and the second lens group 2014 can be mounted on the decorative part 3003 or the cover plate 3001, and are positioned corresponding to the light-transmitting holes 3005, so that the optical element 2011 can be moved to different light-transmitting holes 3005 to achieve focal length switching. For example, the first lens group 2013 can be mounted corresponding to one light-transmitting hole 3005, and the second lens group 2014 can be mounted corresponding to another light-transmitting hole 3005. It should be noted that... Figure 2A and Figure 2B The diagram only illustrates the installation positions of the first mirror group 2013 and the second mirror group 2014, without specifying the fixing method of the first mirror group 2013 and the second mirror group 2014.

[0141] The first lens group 2013 may include one or more lenses.

[0142] The second lens group 2014 may include one or more lenses.

[0143] Among them, the first mirror group 2013 and the second mirror group 2014 may be the same or different.

[0144] In some embodiments, the lens group 2012 can move along the second direction X to achieve zooming or focusing of the camera module 100. In this embodiment, the movement of the lens group 2012 facilitates continuous zooming of the camera module 100, enabling stepless adjustment of the focal length and improving the user experience.

[0145] For example, when the optical element 2011 is in the first position, continuous zoom within a first focal length can be achieved by coordinating the movement of the lens group 2012. When the optical element 2011 is in the second position, continuous zoom within a second focal length can be achieved by coordinating the movement of the lens group 2012. The maximum value of the first focal length is smaller than the maximum value of the second focal length, and the first and second focal lengths partially overlap. For example, the first focal length is 15mm to 22mm, and the second focal length is 22mm to 55mm. Another example is that the first focal length is 10mm to 30mm, and the second focal length is 28mm to 45mm, etc.

[0146] It should be noted that the composition of the motor 10 in the above embodiments is only illustrative. In other embodiments, the motor 10 may include fewer or more components. For example, in some embodiments, the motor 10 may not include the position detection component 5. In other embodiments, the motor 10 may also include a second drive component, which can connect the lens group 2012 to the fixed base 1, for driving the lens group 2012 to move relative to the fixed base 1 in a second direction X to achieve zoom and / or focus.

[0147] Please refer to the following: Figure 3 and Figure 4 , Figure 3 yes Figure 2A The diagram shows the structure of motor 10 in some embodiments; Figure 4 yes Figure 3 The diagram shows a partial structural schematic of the motor 10 in some embodiments.

[0148] In some embodiments, the motor 10 may include a mover 10a and a stator 10b, the mover 10a being mounted on the stator 10b and movable relative to the stator 10b. The stator 10b may include a fixed base 1 and a circuit assembly 6, the circuit assembly 6 being mounted on the fixed base 1. The mover 10a may include a motion platform 2 and a self-locking assembly 4, the self-locking assembly 4 being fixedly mounted on the motion platform 2, the motion platform 2 being mounted on the fixed base 1, and the motion platform 2 being movable relative to the fixed base 1 to drive the self-locking assembly 4 to move together.

[0149] For example, the self-locking component 4 may include a driving member 41, a first telescopic member 42 and a second telescopic member 43, wherein the driving member 41 can drive the first telescopic member 42 and the second telescopic member 43 to extend and retract simultaneously.

[0150] Please refer to the following: Figure 5 and Figure 6 , Figure 5 yes Figure 3 The diagram shows the motor 10 in a locked state after being cut open along line BB in some embodiments. Figure 6 yes Figure 3 The diagram shows the motor 10 in an unlocked state after being cut open along line BB in some embodiments.

[0151] In some embodiments, the fixed base 1 may be provided with a first locking hole 11 and a second locking hole 12, which are directly opposite each other and located on opposite sides of the drive member 41. When the motor 10 is in the locked state, the first telescopic member 42 extends into the first locking hole 11, and the second telescopic member 43 extends into the second locking hole 12. When the motor 10 is in the unlocked state, the first telescopic member 42 is located outside the first locking hole 11, and the second telescopic member 43 is located outside the second locking hole 12.

[0152] In this embodiment, by inserting the first telescopic member 42 into the first locking hole 11 and the second telescopic member 43 into the second locking hole 12, a physical and mechanical stable self-locking can be achieved. That is, the self-locking component 4 can lock the moving platform 2 and the fixed base 1, thereby achieving the self-locking of the motor 10, which in turn stabilizes the lens 201 and improves the reliability of the lens 201 when the electronic device 1000 shakes or falls. For example, when the first telescopic member 42 extends into the first locking hole 11 and the second telescopic member 43 extends into the second locking hole 12, the moving platform 2 and the fixed base 1 are locked, which can ensure the stability of the lens 201 when the electronic device 1000 is shaken by the user and the stability of the lens 201 when the electronic device 1000 is dropped, such as when the electronic device 1000 is dropped from a height of 1 meter, 1.2 meters, 1.4 meters, or higher.

[0153] In this embodiment, since the driving member 41 can drive the first telescopic member 42 and the second telescopic member 43 to extend and retract simultaneously, so as to realize that the first telescopic member 42 moves in opposite directions or in opposite directions at the same time, it can realize the simultaneous locking and unlocking of both sides of the self-locking component 4, which is beneficial to improving the smoothness of locking and unlocking.

[0154] For example, the motor 10 may also include a self-locking detection component 7, which may include a first magnet 71 and a detection chip 72. The first magnet 71 may be installed at the end of the first telescopic member 42 away from the driving member 41, and the first magnet 71 may move with the first telescopic member 42. The detection chip 72 may be installed on the fixed base 1, and the detection chip 72 may be positioned opposite the first magnet 71.

[0155] In this embodiment, since the first magnet 71 and the detection chip 72 are positioned opposite each other, when the first telescopic member 42 moves relative to the first locking hole 11, the detection chip 72 can detect the position of the first magnet 71 relative to the detection chip 72. This allows for accurate detection of the relative position of the first telescopic member 42 with respect to the first locking hole 11, thus determining whether the first telescopic member 42 has entered the first locking hole 11 to complete locking or whether it has disengaged from the first locking hole 11 to complete unlocking. This improves the accuracy of locking and unlocking the motor 10. Furthermore, since the driving member 41 drives the first telescopic member 42 and the second telescopic member 43 to extend and retract simultaneously, closed-loop control can be achieved by detecting only the first telescopic member 42, thereby improving the stability of locking and unlocking the moving platform 2 and the fixed base 1.

[0156] The detection chip 72 can be installed in or near the first locking hole 11. As long as the detection chip 72 can detect the change in the magnetic field of the first magnet 71, the position of the first telescopic member 42 relative to the first locking hole 11 can be detected.

[0157] When the motor 10 is in the locked state, the length of the first telescopic member 42 extending into the first locking hole 11 is greater than or equal to 0.5 mm, so as to improve the stability of the locking between the moving platform 2 and the fixed base 1. For example, the length of the first telescopic member 42 extending into the first locking hole 11 can be, but is not limited to, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, or other values ​​greater than 0.5 mm.

[0158] For example, the motor 10 may also include a stop member 8, which, when the motor 10 is in a locked state, prevents the first telescopic member 42 from continuing to move toward the first locking hole 11.

[0159] In this embodiment, by setting the stop member 8, the first telescopic member 42 can be limited in the locked state, thereby preventing the first telescopic member 42 from continuing to move towards the first locking hole 11 under external force (such as falling, impact, etc.), thus preventing damage to the first telescopic member 42, the second telescopic member 43, and the driving member 41. It also prevents the first telescopic member 42 from colliding with the detection chip 72 and damaging the chip. This design overcomes the problem that the limited installation space of the motor 10 results in a small output torque of the driving member 41, making self-locking between the driving member 41 and the first and second telescopic members 42 and 43 impossible. It also overcomes the problem that the detection chip 72 cannot be continuously powered to perform closed-loop detection of the position of the first screw 421 due to power consumption limitations. Therefore, the stop member 8 not only protects the components in the motor 10 and improves the overall impact resistance of the motor 10, but also reduces power consumption through physical stopping, thus saving power.

[0160] For example, the first telescopic member 42 may include a first screw 421 and a first nut 422. The first nut 422 is fixedly mounted on the motion platform 2. The first screw 421 passes through the first nut 422 and is threadedly connected to the first nut 422. The driving member 41 is used to drive the first screw 421 to rotate relative to the first nut 422, so as to drive the first screw 421 to extend or retract relative to the motion platform 2. When the motor 10 is in the locked state, the first screw 421 extends into the first locking hole 11, and the stop member 8 prevents the first screw 421 from continuing to extend relative to the first motion platform 2.

[0161] In this embodiment, the driving member 41 can drive the first screw 421 to rotate relative to the first nut 422, so that the first screw 421 can move relative to the first nut 422 in a third direction Y, thereby achieving extension and retraction. Since the first screw 421 and the first nut 422 in the first telescopic member are connected by a nut, the first telescopic member 42 can stably remain at any position after the driving member 41 stops driving, thus achieving power-off locking of the self-locking component 4, which is beneficial for energy saving. Since power-off locking does not require external force, when the driving member 41 is energized, there is no need to overcome external forces other than the friction between the first screw 421 and the first nut 422, reducing the driving force required to drive the first screw 421 to move relative to the first nut 422, which is also beneficial for energy saving.

[0162] Furthermore, since the driving component 41 drives the first screw 421 to rotate, and the first screw 421 cooperates with the first nut 422 to convert rotation into linear motion, when the self-locking component 4 is in a power-off locked state, breaking the lock of the self-locking component 4 requires applying a corresponding rotational force to the first screw 421. This makes the locking state of the self-locking component 4 difficult to break, thus improving the stability of the self-locking component 4 when it is in a power-off locked state.

[0163] The first screw 421 may include a first portion 421a and a second portion 421b. The first portion 421a of the first screw 421 is closer to the drive member 41 than the second portion 421b of the first screw 421. The first portion 421a of the first screw 421 is provided with a first external thread 4211. When the motor 10 is in the locked state, a portion of the second portion 421b of the first screw 421 extends into the first locking hole 11.

[0164] It should be noted that, Figure 5 and Figure 6 The first part 421a and the second part 421b of the first screw 421 are schematically divided by dashed lines. It can be understood that in some other embodiments, the division of the first part 421a and the second part 421b of the first screw 421 may be located elsewhere.

[0165] In this embodiment, the first screw 421 is threadedly connected to the first nut 422 through the first part 421a, and is engaged with the first locking hole 11 through the second part 421b.

[0166] In some examples, please refer to [link / reference]. Figure 5 and Figure 6 The stop member 8 can be mounted on the motion platform 2. The stop member 8 is located on the side of the first nut 422 away from the drive member 41, and the stop member 8 may have a first through hole 81. The maximum outer diameter of the second portion 421b of the first screw 421 (see [reference]). Figure 5 D2 in the figure can be smaller than the maximum outer diameter of the first portion 421a of the first screw 421 (see [reference]). Figure 5 D1 in the figure), the inner diameter of the first through hole 81 (see D1 in the figure), and the inner diameter of the first through hole 81 (see D1 in the figure). Figure 5 D2) is greater than the maximum outer diameter of the second part 421b of the first screw 421 and less than the maximum outer diameter of the first part 421a of the first screw 421, that is: D2 < D3 < D1.

[0167] In this embodiment, the stop member 8 allows the second part 421b of the first screw 421 to pass through the first through hole 81 of the stop member 8, thereby enabling the first screw 421 to extend and retract relative to the first locking hole 11, thus locking and unlocking the motor 10. Furthermore, the stop member 8 can limit the first part 421a of the first screw 421 at the first through hole 81, preventing the first part 421a from passing through the first through hole 81. This configuration, with the second part 421b of the first screw 421 extending into the first locking hole 11, keeps the motor 10 in a locked state, providing a stable stop and preventing the first screw 421 from moving further toward the first locking hole 11, thus protecting components such as the drive unit 41 and the detection chip 72.

[0168] When the motor 10 is in the unlocked state, at least a portion of the second part 421b of the first screw 421 is located in the first through hole 81 to prevent the first screw 421 from retracting too much. This prevents the first screw 421 from being blocked by the stop member 8 after retraction due to deviations in the assembly of the first nut 422, the first screw 421, and the stop member 8, thereby preventing the first screw 421 from jamming.

[0169] In other examples, please refer to Figure 7 , Figure 7 yes Figure 3 The diagram shows the motor 10 cut along line BB, in which it is in a locked state in some embodiments. The first nut 422 has a first threaded hole 4221, through which the first screw 421 passes. A stop member 8 is located at the end of the first screw 421 near the drive member 41. The outer diameter of the stop member 8 (see [reference needed]). Figure 7 D4 in the figure is greater than the inner diameter of the first threaded hole 4221 (see [reference]). Figure 7 (D5 in the diagram). When the motor 10 is in the locked state, the stop 8 abuts against the first nut 422.

[0170] In this embodiment, the stop member 8 is disposed at the end of the first screw 421. The dimensional relationship between the stop member 8 and the first threaded hole 4221 of the first nut 422 forms a limit, thereby preventing the first screw 421 from extending too far relative to the first nut 422. The second part 421b of the first screw 421 extends into the first locking hole 11, so that the motor 10 is in a locked state. This can provide a stable stop limit for the motor 10, preventing the first screw 421 from moving further toward the first locking hole 11, so as to protect the drive member 41, the detection chip 72 and other components.

[0171] The stop member 8 and the first screw 421 can be an integral structure to improve the overall structural stability of the first screw 421 and the stop member 8, which is beneficial to improving the strength of the limit formed between the stop member 8 and the first nut 422, and thus improving the reliability of the motor 10 in the locked state.

[0172] Please continue reading. Figure 5 In some embodiments, the motor 10 may further include a magnetic attraction component 9, which may include a second magnet 91 and a magnetic attractor 92. The second magnet 91 may be installed at the end of the second telescopic member 43 away from the drive member 41, and the second magnet 91 may move with the second telescopic member 43. The magnetic attractor 92 may be installed on the base, and the magnetic attractor 92 and the second magnet 91 are arranged opposite each other.

[0173] In this embodiment, the design of the magnetic suction component 9 enables the magnetic suction component 92 and the second magnet 91 to have a magnetic attraction force. Thus, when the motor 10 is in the locked state, the magnetic suction component 92 magnetically attracts the second magnet 91, so that the second telescopic component 43 is magnetically locked with the fixed base 1. This can prevent the second telescopic component 43 from retracting due to external forces (such as falling, impact, etc.) and can improve the stability of the locking between the moving platform 2 and the fixed base 1.

[0174] Please refer to the following: Figure 5 , Figure 8A and Figure 8B , Figure 8A yes Figure 3 A schematic diagram of the stator 10b in some embodiments of the motor 10 shown; Figure 8B yes Figure 8A The stator 10b shown is a schematic diagram of its structure from another perspective.

[0175] In some embodiments, the stator 10b may further include a detection chip 72 and a magnetic attractor 92. Both the detection chip 72 and the magnetic attractor 92 may be mounted on the fixed base 1.

[0176] For example, the fixed base 1 may include a plurality of first locking holes 11 and a plurality of second locking holes 12. The arrangement direction of the plurality of first locking holes 11 is the same as the arrangement direction of the plurality of second locking holes 12, and the first locking holes 11 and the second locking holes 12 are arranged opposite each other.

[0177] In this embodiment, by providing multiple first locking holes 11 and multiple second locking holes 12, the moving platform 2 can be locked at different positions on the fixed base 1. By setting the first locking holes 11 and the second locking holes 12 to face each other, the moving platform 2 can be simultaneously locked and unlocked on both sides by the self-locking component 4 at each first locking hole 11.

[0178] The detection chip 72 can be installed in the first locking hole 11. There can be multiple detection chips 72. The detection chips 72 are set one-to-one with the first locking holes 11, so that the position detection of the first telescopic member 42 can be realized at each first locking hole 11, which is beneficial to the locking and unlocking of the motor 10.

[0179] Among them, the magnetic suction component 92 can be installed corresponding to the second locking hole 12. There can be multiple magnetic suction components 92. The magnetic suction components 92 are set one-to-one with the second locking hole 12 so that at each second locking hole 12, the magnetic suction component 92 can generate magnetic attraction with the second magnet 91 on the second telescopic component 43, so as to ensure the locking stability of the motor 10 in the locked state.

[0180] Please refer to the following: Figures 8A to 10 , Figure 9 yes Figure 8A The stator 10b shown is partially exploded in some embodiments. Figure 10 yes Figure 8A The stator 10b shown is cut open along line CC in some embodiments.

[0181] In some embodiments, the fixed base 1 may include a first base 13, a second base 14, and a guide member 15, with the second base 14 and the guide member 15 both mounted on the first base 13. The first base 13 may have a first guide groove 131, and the guide member 15 may be mounted in the first guide groove 131, which provides installation space and support for the guide member 15. The number of guide members 15 may be two, which is beneficial for achieving balanced guidance. In other embodiments, the number of guide members 15 may also be different. It should be noted that the number of first guide grooves 131 and guide members 15 may be the same, and the first guide grooves 131 and guide members 15 are arranged in a one-to-one correspondence.

[0182] For example, circuit assembly 6 is mounted on the first base 13, and circuit assembly 6 covers the first locking hole 11. Detection chip 72 is mounted on circuit assembly 6 and electrically connected to circuit assembly 6. Detection chip 72 is located on circuit assembly 6 corresponding to the first locking hole 11.

[0183] For example, a first sub-hole 132 may be provided on one side of the first base 13, and the second base 14 may have a second sub-hole 141 and a third sub-hole 142 that are directly opposite each other. The second base 14 is installed on the first base 13, and the first base 13 surrounds the second sub-hole 141 to form a first locking hole 11. The first sub-hole 132 and the third sub-hole 142 are connected to form a second locking hole 12.

[0184] The magnetic suction component 92 can be installed on the second base 14 and is set in accordance with the third sub-hole 142, so that after the second base 14 and the first base 13 are assembled, the magnetic suction component 92 can be installed in accordance with the second locking hole 12.

[0185] Please refer to the following: Figure 11 and Figure 12 , Figure 11 yes Figure 3 A schematic diagram of the structure of the mover 10a in some embodiments of the motor 10 shown; Figure 12 yes Figure 11 The diagram shows a partial structural exploded view of the mover 10a in some embodiments.

[0186] In some embodiments, the motion stage 2 may have a bearing surface 211 and a receiving space 212. The bearing surface 211 may be used to bear the optical element 2011 described above. The receiving space 212 may be disposed on the back side of the bearing surface 211 for accommodating the self-locking assembly 4.

[0187] In this embodiment, by setting the self-locking component 4 and the optical element 2011 on opposite sides of the bearing surface 211 of the motion stage 2, and by accommodating the self-locking component 4 through the accommodating space 212, the self-locking component 4 is accommodated and installed using the space of the motion stage 2 itself, reducing the extra space occupied by the self-locking component 4, improving the space utilization of the motor 10, and facilitating the miniaturization of the motor 10.

[0188] For example, the motion platform 2 may be provided with a first opening 221 and a second opening 231. The first opening 221 and the second opening 231 may be arranged opposite each other along a third direction Y, and both are connected to the receiving space 212. The self-locking component 4 is installed in the receiving space 212, and the first telescopic member 42 passes through the first opening 221, and the second telescopic member 43 passes through the second opening 231.

[0189] In this embodiment, by providing a first opening 221, the first telescopic member 42 of the self-locking assembly 4 can extend from the receiving space 212 to the outside of the moving platform 2, and by providing a second opening 231, the second telescopic member 43 of the self-locking assembly 4 can extend from the receiving space 212 to the outside of the moving platform 2, thereby realizing its telescopic function and realizing the locking and unlocking functions described above.

[0190] For example, the motion platform 2 may be provided with a clearance hole 213, which may be located on the back side of the bearing surface 211 and connected to the receiving space 212. The clearance hole 213 may be located at the bottom of the motion platform 2.

[0191] In this embodiment, by providing a clearance hole 213 on the motion platform 2, the pins 414 of the drive member 41 can pass through the clearance hole 213 to realize external circuitry, which helps to shorten the path of the external circuitry of the pins 414 of the drive member 41.

[0192] In some embodiments, the mover 10a may also include a first rack 31 and a second rack 32. The first rack 31 may be installed on one side of the motion platform 2 and disposed near the first telescopic member 42. The second rack 32 may be installed on the opposite side of the motion platform 2 and disposed near the second telescopic member 43.

[0193] In this embodiment, the first rack 31 and the second rack 32 can be some components of the drive assembly 3. The first rack 31 and the second rack 32 can cooperate with a gear (not shown in the figure) to assemble and form the drive assembly 3.

[0194] Please refer to the following: Figure 13A and Figure 13B , Figure 13A yes Figure 11 A schematic diagram of the motion platform 2 in some embodiments of the mover 10a shown; Figure 13B yes Figure 13A The diagram shows the structure of the motion platform 2 from another perspective.

[0195] In some embodiments, the motion stage 2 may include a carrier 21, a first support member 22, and a second support member 23, with the first support member 22 and the second support member 23 respectively connected to opposite sides of the carrier 21. The carrier 21 may have a bearing surface 211, which is inclined relative to the second direction X, and the bearing surface 211 may be used to support the optical element 2011 described above. The first support member 22 may have a second guide groove 222, which may be disposed at the bottom of the first support member 22. The second support member 23 may have a third guide groove 232, which may be disposed at the bottom of the second support member 23.

[0196] For example, a first opening 221 is provided in the first support member 22 and extends through the first support member 22 in a third direction Y. A second opening 231 is provided in the second support member 23 and extends through the second support member 23 in a third direction Y.

[0197] For example, the carrier 21 may also have the receiving space 212 described above for receiving the self-locking component 4, thereby improving the space utilization of the motor 10.

[0198] The clearance hole 213 can be provided at the bottom of the carrier 21.

[0199] The carrier 21 may have a first limiting hole 214 and a second limiting hole 215. The first limiting hole 214 and the second limiting hole 215 are spaced apart and both are connected to the receiving space 212.

[0200] The carrier 21 may be provided with a limiting post 216, which may be located between the first limiting hole 214 and the second limiting hole 215.

[0201] Please refer to the following: Figures 14A to 15 , Figure 14A yes Figure 13A A schematic diagram of the structure of the motion platform 2 shown in the figure after being cut along line DD at a certain angle; Figure 14B yes Figure 13A A schematic diagram of the structure of the motion platform 2 shown in the figure, cut along line DD at another angle; Figure 15 yes Figure 13A The diagram shows the structure of the motion platform 2 after being cut along line EE in some embodiments.

[0202] In some embodiments, the carrier 21 may have a first limiting rib 217 and a second limiting rib 218, which may be both disposed on the inner wall of the receiving space 212. The first limiting rib 217 and the second limiting rib 218 are spaced apart, with the opening of the first limiting rib 217 facing the opening of the receiving space 212, and the opening of the second limiting rib 218 facing the opening of the receiving space 212.

[0203] For example, the first limiting rib 217 has a V-shaped or U-shaped structure.

[0204] For example, the second limiting rib 218 has a V-shaped or U-shaped structure.

[0205] In some embodiments, the first opening 221 can be a stepped opening. The first opening 221 may include a fourth sub-hole 2211 and a fifth sub-hole 2212. The fourth sub-hole 2211 is closer to the receiving space 212 than the fifth sub-hole 2212. The inner diameter of the fourth sub-hole 2211 is smaller than the inner diameter of the fifth sub-hole 2212. A first limiting wall 2213 is formed at the connection between the fourth sub-hole 2211 and the fifth sub-hole 2212. The first limiting wall 2213 faces away from the receiving space 212.

[0206] For example, the first support member 22 may be provided with a first limiting platform 223, which is located on the side of the fifth sub-hole 2212 away from the fourth sub-hole 2211, and the first limiting platform 223 covers part of the fifth sub-hole 2212.

[0207] In some embodiments, the second opening 231 can be a stepped opening. The second opening 231 may include a sixth sub-hole 2311 and a seventh sub-hole 2312. The sixth sub-hole 2311 is closer to the receiving space 212 than the seventh sub-hole 2312. The inner diameter of the sixth sub-hole 2311 is smaller than the inner diameter of the seventh sub-hole 2312. A second limiting wall 2314 is formed at the connection between the sixth sub-hole 2311 and the seventh sub-hole 2312. The second limiting wall 2314 faces away from the receiving space 212.

[0208] For example, the second support member 23 may be provided with a second limiting platform 233, which is located on the side of the seventh sub-hole 2312 away from the sixth sub-hole 2311, and the second limiting platform 233 covers part of the seventh sub-hole 2312.

[0209] Please refer to the following: Figure 16A and Figure 16B , Figure 16A yes Figure 12 A schematic diagram of the structure of the first rack 31 in some embodiments of the mover 10a shown; Figure 16B yes Figure 12 The diagram shows the structure of the second rack 32 in some embodiments of the mover 10a.

[0210] In some embodiments, the first rack 31 may include a first tooth body 311, a stop member 8, and a first limiting block 312. The stop member 8 and the first limiting block 312 are both located on the side of the first tooth body 311 facing away from the convex tooth, and the first limiting block 312 is located on the side of the stop member 8.

[0211] In some embodiments, the second rack 32 may include a second tooth body 321 and a second limiting block 322, the second limiting block 322 being located on the side of the second tooth body 321 facing away from the convex tooth.

[0212] Please refer to the following: Figure 11 , Figure 17A and Figure 17B , Figure 17A yes Figure 12 A schematic diagram of the drive element 41 in some embodiments of the mover 10a shown; Figure 17B yes Figure 17A The diagram shows a partial exploded view of the drive unit 41 in some embodiments.

[0213] In some embodiments, the self-locking assembly 4 may include a drive member 41, a first drive shaft 44, a first telescopic member 42, a second drive shaft 45, and a second telescopic member 43. The drive member 41 may include a body 411 and an output shaft 412. The output shaft 412 includes a first end 4121 and a second end 4122, which are opposite each other. The output shaft 412 passes through the body 411, with the first end 4121 and the second end 4122 of the output shaft 412 protruding from opposite sides of the body 411. The first telescopic member 42 is connected to the first end 4121 of the output shaft 412, and the second telescopic member 43 is connected to the second end 4122 of the output shaft 412. The body 411 drives the output shaft 412 to rotate, thereby causing the first telescopic member 42 and the second telescopic member 43 to extend and retract simultaneously. The first drive shaft 44 is connected to the first telescopic member 42 and the first end 4121 of the output shaft 412, and the second drive shaft 45 is connected to the second telescopic member 43 and the second end 4122 of the output shaft 412.

[0214] In this embodiment, the first drive shaft 44 and the second drive shaft 45 can connect the first end 4121 of the output shaft 412 to the first telescopic member 42 and the second end 4122 of the output shaft 412 to the second telescopic member 43. Since the output shaft 412 is the structure of the drive member 41 itself, the output of the drive member 41 may be limited by the shape of the output shaft 412. By designing the shape of the first drive shaft 44 and the second drive shaft 45, the form of the transmission connection of the drive member 41 can be changed so that the drive member 41 can better match the first telescopic member 42 and the second telescopic member 43.

[0215] In this embodiment, since the drive member 41 can realize the synchronous movement of the first telescopic member 42 and the second telescopic member 43 on both sides through the first end 4121 and the second end 4122 of the output shaft 412, the drive member 41 is driven on both sides simultaneously, thereby driving the first transmission shaft 44 and the second transmission shaft 45 located on both sides of the drive member 41 to rotate, thereby driving the first telescopic member 42 and the second telescopic member 43 to move respectively, so as to realize the simultaneous locking and unlocking of both sides of the self-locking component 4, which is beneficial to improving the smoothness of locking and unlocking.

[0216] For example, the first telescopic member 42 may include a first screw 421 and a first nut 422, the first screw 421 being connected to the first drive shaft 44. The first screw 421 may pass through the first nut 422 and be threadedly connected to the first nut 422.

[0217] In this embodiment, the driving member 41 can rotate via the output shaft 412 to drive the first transmission shaft 44 to rotate. The rotation of the first transmission shaft 44 can drive the first screw 421 to rotate relative to the first nut 422. Under the drive of the first transmission shaft 44, the first screw 421 can move relative to the first nut 422 in a third direction Y to achieve extension and retraction. Since the first screw 421 and the first nut 422 in the first telescopic member 42 are connected by a nut, the first telescopic member 42 can be stably stopped at any position after the driving member 41 stops driving, that is, the power-off locking of the self-locking component 4 is achieved, which is beneficial to energy saving. Since the power-off locking does not require external force, when the driving member 41 is energized, there is no need to overcome external forces other than the friction between the first screw 421 and the first nut 422, which reduces the driving force required to drive the first screw 421 to move relative to the first nut 422, which is beneficial to energy saving.

[0218] Furthermore, since the drive component 41 drives the first screw 421 through rotation output, and the first screw 421 cooperates with the first nut 422 to convert rotation into linear motion, when the self-locking component 4 is in a power-off locked state, breaking the lock of the self-locking component 4 requires applying a corresponding rotational force to the first screw 421. This makes the locked state of the self-locking component 4 difficult to break, thus improving the stability of the self-locking component 4 when it is in a power-off locked state.

[0219] For example, the second telescopic member 43 may include a second screw 431 and a second nut 432. The second screw 431 may be connected to the second drive shaft 45, and the second nut 432 may be mounted on the motion platform 2. The second screw 431 may pass through the second nut 432 and be threadedly connected to the second nut 432.

[0220] In this embodiment, the driving member 41 can rotate via the output shaft 412 to drive the second transmission shaft 45 to rotate. The rotation of the second transmission shaft 45 can drive the second screw 431 to rotate relative to the second nut 432. Under the drive of the second transmission shaft 45, the second screw 431 can move relative to the second nut 432 in a third direction Y to achieve extension and retraction. Since the second screw 431 and the second nut 432 in the second telescopic member 43 are connected by a nut, the second telescopic member 43 can be stably stopped at any position after the driving member 41 stops driving, that is, the power-off locking of the self-locking component 4 is achieved, which is beneficial to energy saving. Since the power-off locking does not require external force, when the driving member 41 is energized, there is no need to overcome external forces other than the friction between the second screw 431 and the second nut 432, which reduces the driving force required to drive the second screw 431 to move relative to the second nut 432, which is beneficial to energy saving.

[0221] Furthermore, since the drive component 41 drives the second screw 431 through rotation output, and the second screw 431 cooperates with the second nut 432 to convert rotation into linear motion, when the self-locking component 4 is in a power-off locked state, breaking the lock of the self-locking component 4 requires applying a corresponding rotational force to the screw, which makes the locked state of the self-locking component 4 difficult to break, thus improving the stability of the self-locking component 4 when it is in a power-off locked state.

[0222] For example, the drive unit 41 can be a stepper motor, which is beneficial for the rotation control of the output shaft 412 of the drive unit 41 to achieve stable rotation of the output shaft 412, and also helps to ensure that the feed amount of the first screw 421 and the second screw 431 on both sides is consistent.

[0223] In some embodiments, the first drive shaft 44 and the output shaft 412 can be an integral structure, and / or the second drive shaft 45 and the output shaft 412 can be an integral structure, so as to shorten the transmission chain of the self-locking assembly 4, which is beneficial to simplify the transmission relationship, reduce transmission error, and thus help to make the motion feed on both sides of the drive member 41 tend to be consistent.

[0224] Please refer to the following: Figures 18A to 19 , Figure 18A yes Figure 17A A schematic diagram of the drive element 41 in some embodiments of the self-locking assembly 4 shown; Figure 18B yes Figure 18A A schematic diagram of the drive component 41 from another perspective; Figure 19 yes Figure 18A The diagram shows the structure of the drive component 41 after being cut along line FF in some embodiments.

[0225] In some embodiments, the fuselage 411 may include a housing 4111, a first bearing 4112, a second bearing 4113, a first end plate 4114, a second end plate 4115, and a reinforcing plate 4116. The first bearing 4112 and the second bearing 4113 may be respectively mounted on the first end 4111a and the second end 4111b of the housing 4111, and the first end plate 4114 and the second end plate 4115 may be respectively mounted on the first end 4111a and the second end 4111b of the housing 4111. The first end plate 4114 may be sleeved on the first bearing 4112, and the second end plate 4115 may be sleeved on the second bearing 4113. The reinforcing plate 4116 may be connected between the first end plate 4114 and the second end plate 4115.

[0226] For example, the reinforcing plate 4116 may be provided with a fixing hole 4117, which is located between the first end plate 4114 and the second end plate 4115.

[0227] For example, the output shaft 412 may pass through the first bearing 4112, the housing 4111, and the second bearing 4113.

[0228] In some embodiments, the drive unit 41 may further include a mechanism 413 and pins 414. The mechanism 413 is disposed inside the housing 4111 and is used to drive the output shaft 412 to rotate. The pins 414 protrude from the housing 4111 and are electrically connected to the mechanism 413 for connecting external circuitry and providing an external power supply for the mechanism 413.

[0229] Please refer to the relevant section. Figures 20 to 21B , Figure 20 yes Figure 17A A schematic diagram of the structure of the first drive shaft 44 and the second drive shaft 45 in some embodiments of the self-locking assembly 4 shown; Figure 21A yes Figure 20 The first drive shaft 44 and the second drive shaft 45 shown are mounted in some embodiments. Figure 18A A schematic diagram of the structure of the driving component 41 is shown; Figure 21B yes Figure 21A The diagram shows the structure as illustrated in some embodiments after being cut along line GG. Figure 20 (a) in the diagram refers to the first drive shaft 44. Figure 20 (b) in the diagram refers to the second drive shaft 45.

[0230] In some embodiments, the first drive shaft 44 may include a first portion 44a and a second portion 44b, wherein the first portion 44a of the first drive shaft 44 is fixedly connected to the first end 4121 of the output shaft 412. It should be noted that... Figure 20 In (a), the first portion 44a and the second portion 44b of the first drive shaft 44 are schematically divided by dashed lines. It can be understood that in some other embodiments, the division of the first portion 44a and the second portion 44b of the first drive shaft 44 may be located elsewhere.

[0231] For example, the end face of the first portion 44a of the first drive shaft 44 is provided with a first mounting groove 441, and the first end 4121 of the output shaft 412 is mounted in the first mounting groove 441.

[0232] In this embodiment, the design of the first mounting groove 441 can improve the stability of the connection between the first end 4121 of the output shaft 412 and the first transmission shaft 44, which is beneficial to the stability of the transmission between the output shaft 412 and the first transmission shaft 44.

[0233] The opposite sides of the first end 4121 of the output shaft 412 are fixedly connected to the side wall of the first mounting groove 441.

[0234] In this embodiment, by setting the opposite sides of the first end 4121 of the output shaft 412 to be fixedly connected to the side wall of the first mounting groove 441, it is beneficial to improve the balance of the connection between the first end 4121 of the output shaft 412 and the first transmission shaft 44, making the assembly connection between the first end 4121 of the output shaft 412 and the first transmission shaft 44 more stable, and avoiding the problem of the first transmission shaft 44 tilting during assembly.

[0235] The opposite sides of the first end 4121 of the output shaft 412 can be welded to the sidewall of the first mounting groove 441. For example, laser welding can be used between the first end 4121 of the output shaft 412 and the sidewall of the first mounting groove 441. After the first end 4121 of the output shaft 412 is inserted into the first mounting groove 441, the first part 44a of the first drive shaft 44 is penetrated by laser, and the first welding material 46 is used to achieve the welding between the first end 4121 of the output shaft 412 and the first part 44a of the first drive shaft 44.

[0236] The end face of the first end 4121 of the output shaft 412 can abut against the bottom wall of the first mounting groove 441 to increase the overlapping area between the first end 4121 of the output shaft 412 and the first mounting groove 441, thereby improving the stability of the assembly between the first end 4121 of the output shaft 412 and the first mounting groove 441.

[0237] It should be noted that laser welding will leave a first welding hole 443 on the first drive shaft 44. The first welding hole 443 connects to the first mounting groove 441. The first welding material 46 connects the first end 4121 of the output shaft 412 to the side wall of the first mounting groove 441, and part of the first welding material 46 will also be connected to the hole wall of the first welding hole 443. The number of first welding holes 443 can be two or more, including at least two first welding holes 443 located on both sides of the first drive shaft 44.

[0238] In some other embodiments, the first end 4121 of the output shaft 412 and the side wall of the first mounting groove 441 may be connected by other methods, such as bonding or snap-fitting, which are not limited here.

[0239] In some embodiments, the second drive shaft 45 may include a first portion 45a and a second portion 45b, wherein the first portion 45a of the second drive shaft 45 is fixedly connected to the second end 4122 of the output shaft 412. It should be noted that... Figure 20 In (b), the first portion 45a and the second portion 45b of the second drive shaft 45 are schematically divided by dashed lines. It can be understood that in some other embodiments, the division of the first portion 45a and the second portion 45b of the second drive shaft 45 may be located elsewhere.

[0240] For example, the end face of the first part 45a of the second drive shaft 45 is provided with a second mounting groove 451, and the second end 4122 of the output shaft 412 is mounted in the second mounting groove 451.

[0241] In this embodiment, the design of the second mounting groove 451 can improve the stability of the connection between the second end 4122 of the output shaft 412 and the second transmission shaft 45, which is beneficial to the stability of the transmission between the output shaft 412 and the second transmission shaft 45.

[0242] The two opposite sides of the second end 4122 of the output shaft 412 are fixedly connected to the side wall of the second mounting groove 451.

[0243] In this embodiment, by setting the opposite sides of the second end 4122 of the output shaft 412 to be fixedly connected to the side wall of the second mounting groove 451, it is beneficial to improve the balance of the connection between the second end 4122 of the output shaft 412 and the second transmission shaft 45, making the assembly connection between the second end 4122 of the output shaft 412 and the second transmission shaft 45 more stable, and avoiding the problem of the second transmission shaft 45 tilting during assembly.

[0244] The opposite sides of the second end 4122 of the output shaft 412 can be welded to the sidewall of the second mounting groove 451. For example, laser welding can be used between the second end 4122 of the output shaft 412 and the sidewall of the second mounting groove 451. After the second end 4122 of the output shaft 412 is inserted into the second mounting groove 451, the first part 45a of the second drive shaft 45 is penetrated by laser, and the second welding material 47 is used to achieve the welding between the second end 4122 of the output shaft 412 and the first part 45a of the second drive shaft 45.

[0245] The end face of the second end 4122 of the output shaft 412 can abut against the bottom wall of the second mounting groove 451 to increase the overlapping area between the second end 4122 of the output shaft 412 and the second mounting groove 451, thereby improving the stability of the assembly between the second end 4122 of the output shaft 412 and the second mounting groove 451.

[0246] It should be noted that laser welding will leave a second welding hole 453 on the second drive shaft 45. The second welding hole 453 connects to the second mounting groove 451. The second welding material 47 connects the second end 4122 of the output shaft 412 to the side wall of the second mounting groove 451, and part of the second welding material 47 will also be connected to the hole wall of the second welding hole 453. The number of second welding holes 453 can be two or more, including at least two second welding holes 453 located on both sides of the second drive shaft 45.

[0247] In some other embodiments, the second end 4122 of the output shaft 412 and the side wall of the second mounting groove 451 may also be connected by other methods, such as bonding, snap-fitting, etc., which are not limited here.

[0248] Please refer to the following: Figures 22 to 23B , Figure 22 yes Figure 17A The diagram shows the structure of the first screw 421 and the second screw 431 in some embodiments of the self-locking assembly 4. Figure 23A yes Figure 22 The first screw 421 and the second screw 431 shown are mounted in some embodiments. Figure 21A A structural diagram of the structure shown; Figure 23B yes Figure 23A The diagram shows the structure as illustrated in some embodiments after being cut along line HH. Figure 22 (a) in the text refers to the first screw 421. Figure 22 (b) in the diagram refers to the second screw 431.

[0249] In some embodiments, the first screw 421 may include a first portion 421a and a second portion 421b. The end face of the first portion 421a away from the second portion 421b of the first screw 421 may be provided with a first transmission groove 4212. At least a portion of the second portion 44b of the first transmission shaft 44 may be located within the first transmission groove 4212. The second portion 44b of the first transmission shaft 44 abuts against the side wall of the first transmission groove 4212 under the drive of the output shaft 412, thereby driving the first screw 421 to rotate.

[0250] In this embodiment, the design of the first transmission groove 4212 enables the first transmission shaft 44 to form a transmission connection with the first screw 421, thereby forming a transmission chain. The first end 4121 of the output shaft 412 can drive the first screw 421 to rotate by driving the first transmission shaft 44 to rotate.

[0251] For example, the second part 44b of the first drive shaft 44 may have a first drive surface 442. The first drive surface 442 can abut against the side wall of the first drive groove 4212 when the first drive shaft 44 rotates, so as to drive the first screw 421 to rotate. There may be a first assembly gap between the first drive surface 442 and the side wall of the first drive groove 4212 to achieve assembly tolerance, thereby avoiding jamming during the rotation of the first screw 421 by the drive shaft.

[0252] The self-locking component 4 may also include an elastic element (not shown in the figure). The elastic element can fill the first assembly gap so that the first transmission surface 442 can squeeze the elastic element under the rotation of the first transmission shaft 44. The elastic element can deform so that the first transmission surface 442 can move relative to the first transmission shaft 44 by squeezing the elastic element, thereby playing a tolerance role. It can be regarded as providing a transmission margin space between the first transmission shaft 44 and the first screw 421, thereby avoiding jamming during the rotation of the first screw 421 driven by the first transmission shaft 44.

[0253] Wherein, the dimension d0 of the first assembly gap satisfies: 0 < d0 ≤ 0.2 mm. For example, the value of d0 can be, but is not limited to, 0, or 0.02 mm, or 0.04 mm, or 0.06 mm, or 0.08 mm, or 0.1 mm, or 0.12 mm, or 0.14 mm, or 0.16 mm, or 0.18 mm, or 0.2 mm, or other values ​​between 0 and 0.2 mm.

[0254] In this embodiment, the size d0 of the first assembly gap satisfies the above relationship, which is beneficial to forming an assembly tolerance, avoiding jamming during the rotation of the first drive shaft 44 and the first screw 421, and also avoiding excessive gap, which would cause lag in the transmission between the first drive shaft 44 and the first screw 421.

[0255] The second part 44b of the first drive shaft 44 may have multiple first drive surfaces 442. The shape of the second part 44b of the first drive shaft 44 and the first drive groove 4212 of the first screw 421 may be the same. Each first drive surface 442 is provided corresponding to one side wall of the first drive groove 4212. There is a first assembly gap between the side walls of the first drive groove 4212 provided corresponding to each first drive surface 442.

[0256] For example, the cross-sectional shape of the second part 44b of the first drive shaft 44 in the plane perpendicular to the third direction Y can be, but is not limited to, a straight line, a cross, or a regular polygon. Correspondingly, the shape of the first drive groove 4212 is adapted to the shape of the second part 44b of the first drive shaft 44.

[0257] For example, the second part 44b of the first drive shaft 44 may be elastic, and the second part 44b of the first drive shaft 44 may be located in the first drive groove 4212 and abut against the side wall of the first drive groove 4212.

[0258] In this embodiment, since the second part 44b of the first drive shaft 44 is elastic, there is no need to set a gap between the second part 44b of the first drive shaft 44 and the side wall of the first drive groove 4212. The tolerance function can be achieved by the elastic deformation of the second part 44b of the first drive shaft 44, so as to avoid jamming during the rotation of the first screw 421 driven by the first drive shaft 44.

[0259] In some embodiments, the end face of the second portion 421b of the first screw 421 may be provided with a first receiving groove 4213.

[0260] In some embodiments, the second screw 431 may include a first portion 431a and a second portion 431b. The end face of the first portion 431a of the second screw 431 away from the second portion 431b may be provided with a second transmission groove 4311. At least a portion of the second portion 45b of the second transmission shaft 45 may be located within the second transmission groove 4311. The second portion 45b of the second transmission shaft 45 abuts against the side wall of the second transmission groove 4311 under the drive of the output shaft 412, thereby driving the second screw 431 to rotate.

[0261] In this embodiment, the design of the second transmission groove 4311 enables the second transmission shaft 45 to form a transmission connection with the second screw 431, thereby forming a transmission chain. The second end 4122 of the output shaft 412 can drive the second screw 431 to rotate by driving the second transmission shaft 45 to rotate.

[0262] For example, the second portion 45b of the second drive shaft 45 may have a second drive surface 452. The second drive surface 452 can abut against the side wall of the second drive groove 4311 when the second drive shaft 45 rotates, so as to drive the second screw 431 to rotate. There may be a second assembly gap between the second drive surface 452 and the side wall of the second drive groove 4311 to achieve assembly tolerance, thereby avoiding jamming during the rotation of the second screw 431 by the drive shaft.

[0263] The self-locking component 4 may also include an elastic element (not shown in the figure). The elastic element can be filled in the second assembly gap so that the second transmission surface 452 can squeeze the elastic element under the rotation of the second transmission shaft 45. The elastic element can deform so that the second transmission surface 452 can move relative to the second transmission shaft 45 by squeezing the elastic element, thereby playing a tolerance role. It can be regarded as providing a transmission margin space between the second transmission shaft 45 and the second screw 431, thereby avoiding jamming during the rotation of the second screw 431 driven by the second transmission shaft 45.

[0264] The size of the second assembly gap can be the same as the size of the first assembly gap.

[0265] In this embodiment, the second assembly gap is the same size as the first assembly gap, which is beneficial for forming an assembly tolerance, avoiding jamming during the rotation of the second drive shaft 45 and the second screw 431, and also avoiding excessive gap, which would cause lag in the transmission between the second drive shaft 45 and the second screw 431.

[0266] The second part 45b of the second drive shaft 45 may have multiple second drive surfaces 452. The second part 45b of the second drive shaft 45 and the second drive groove 4311 of the second screw 431 may have the same shape. Each second drive surface 452 is provided corresponding to one side wall of the second drive groove 4311. There is a second assembly gap between the side walls of the second drive groove 4311 provided corresponding to each second drive surface 452.

[0267] For example, the cross-sectional shape of the second portion 45b of the second drive shaft 45 in the plane perpendicular to the third direction Y can be, but is not limited to, a straight line, a cross, or a regular polygon. Correspondingly, the shape of the second drive groove 4311 is adapted to the shape of the second portion 45b of the second drive shaft 45.

[0268] For example, the second portion 45b of the second drive shaft 45 may be elastic, and the second portion 45b of the second drive shaft 45 may be located in the second drive groove 4311 and abut against the side wall of the second drive groove 4311.

[0269] In this embodiment, since the second part 45b of the second drive shaft 45 is elastic, there is no need to set a gap between the second part 45b of the second drive shaft 45 and the side wall of the second drive groove 4311. The tolerance function can be achieved by the elastic deformation of the second part 45b of the second drive shaft 45, so as to avoid jamming during the rotation of the second screw 431 driven by the second drive shaft 45.

[0270] In some embodiments, the number of first transmission surfaces 442 of the first transmission shaft 44 can be the same as the number of second transmission surfaces 452 of the second transmission shaft 45, and the first transmission surfaces 442 and the second transmission surfaces 452 are arranged in a one-to-one correspondence, and the first transmission surfaces 442 and the corresponding second transmission surfaces 452 are arranged in parallel, which helps to ensure that the transmission pace on both sides of the drive member 41 is consistent, thereby ensuring that the feed amount of the first screw 421 and the second screw 431 tends to be consistent.

[0271] In some embodiments, the end face of the second portion 431b of the second screw 431 may be provided with a second receiving groove 4313.

[0272] Please continue reading. Figure 22 and Figure 23AIn some embodiments, the first portion 421a of the first screw 421 is provided with a first external thread 4211, and the first portion 431a of the second screw 431 is provided with a second external thread 4312.

[0273] For example, the thread direction of the first external thread 4211 and the thread direction of the second external thread 4312 can be opposite, so that the drive member 41 can drive the first screw 421 and the second screw 431 on both sides to extend or retract simultaneously through the output shaft 412.

[0274] For example, the pitch of the first external thread 4211 and the pitch of the second external thread 4312 can be the same, so that when the drive member 41 drives the first screw 421 and the second screw 431 to rotate, the feed amount of the first screw 421 and the second screw 431 is the same.

[0275] For example, the first external thread 4211 may have a first thread start point 4214. In a plane perpendicular to the axis L1 of the first screw 421 and passing through the first thread start point 4214, the first thread start point 4214 is connected to the center O1 of the first screw 421 to form a first connecting line M1. The first connecting line M1 and the axis L1 of the first screw 421 have a first included angle α1. The second external thread 4312 may have a second thread start point 4314. In a plane perpendicular to the axis L2 of the second screw 431 and passing through the second thread start point 4314, the second thread start point 4314 is connected to the center O2 of the second screw 431 to form a second connecting line M2. The second connecting line M2 and the axis L2 of the second screw 431 have a second included angle α2. The difference between the first included angle α1 and the second included angle α2 is less than or equal to 2°. For example, the value of |α1-α2| can be, but is not limited to, 2°, or 1.7°, or 1.4°, or 1.1°, or 0.8°, or 0.5°, or 0.4°, or 0.3°, or 0.2°, or 0.1°, or 0, or other values ​​less than 2°.

[0276] In this embodiment, by designing |α1-α2| to be less than or equal to 2°, it is beneficial to ensure that the feed amount of the first screw 421 and the second screw 431 on both sides of the driving member 41 tends to be consistent under the drive of the driving member 41.

[0277] It should be noted that the above-mentioned method of providing the deviation angle between the first thread starting point 4214 of the first screw 421 and the second thread starting point 4314 of the second screw 431 is only for illustration. Understandably, the included angle between other connecting lines can also be used for comparison, as long as the reference objects of the first thread starting point 4214 and the second thread starting point 4314 are consistent. When the reference objects are consistent, the deviation angle should be less than or equal to 2°.

[0278] Please refer to the following: Figures 24A to 25A , Figure 24A yes Figure 17A The diagram shows the structure of the first nut 422 and the second nut 432 in some embodiments of the self-locking assembly 4 shown. Figure 24B yes Figure 24A The first nut 422 and the second nut 432 shown are cross-sectional schematic diagrams in some embodiments; Figure 25A yes Figure 17A The diagram shows the structure of the self-locking component 4 cut along line JJ in some embodiments. Figure 24A (a) in the diagram refers to the first nut, 422. Figure 24A (b) in the diagram represents the second nut 432. Figure 24B (a) in the diagram refers to the first nut, 422. Figure 24B (b) in the diagram represents the second nut 432.

[0279] In some embodiments, the first nut 422 may have a first threaded hole 4221, in which a first internal thread 4222 is provided, and a first screw 421 has a first external thread 4211. The first screw 421 passes through the first threaded hole 4221, and the first external thread 4211 is threadedly connected to the first internal thread 4222. The second nut 432 may have a second threaded hole 4321, in which a second internal thread 4322 is provided, and a second screw 431 has a second external thread 4312. The second screw 431 passes through the second threaded hole 4321, and the second external thread 4312 is threadedly connected to the second internal thread 4322. The thread direction of the first internal thread 4222 is opposite to the thread direction of the second internal thread 4322.

[0280] In this embodiment, the design of the first nut 422 allows the first screw 421 to rotate relative to the first nut 422 and move relative to the first nut 422 along a third direction Y. The design of the second nut 432 allows the second screw 431 to rotate relative to the second nut 432 and move relative to the second nut 432 along a third direction Y. Since the thread direction of the first nut 422 is opposite to that of the second nut 432, the first screw 421 and the second screw 431 can move simultaneously and in opposite directions along a third direction Y, thus achieving simultaneous extension and retraction.

[0281] For example, the pitch of the first internal thread 4222 and the pitch of the second internal thread 4322 can be the same, so that when the drive member 41 drives the first screw 421 and the second screw 431 to rotate, the stroke of the first screw 421 relative to the first nut 422 and the stroke of the second screw 431 relative to the second nut 432 are the same, that is, the feed amount of the first screw 421 and the second screw 431 is the same.

[0282] For example, the first internal thread 4222 has a third thread start point 4223. In a plane perpendicular to the axis L3 of the first nut 422 and passing through the third thread start point 4223, the third thread start point 4223 is connected to the center O3 of the first nut 422 to form a third connecting line M3. The third connecting line M3 and the axis L3 of the first nut 422 have a third included angle α3. The second internal thread 4322 has a fourth thread start point 4323. In a plane perpendicular to the axis L4 of the second nut 432 and passing through the fourth thread start point 4323, the fourth thread start point 4323 is connected to the center O4 of the second nut 432 to form a fourth connecting line M4. The fourth connecting line M4 and the axis L4 of the second nut 432 have a fourth included angle α4. The difference between the third included angle α3 and the fourth included angle α4 is less than or equal to 2°. For example, the value of |α3-α4| can be, but is not limited to, 2°, or 1.7°, or 1.4°, or 1.1°, or 0.8°, or 0.5°, or 0.4°, or 0.3°, or 0.2°, or 0.1°, or 0, or other values ​​less than 2°.

[0283] In this embodiment, by designing |α3-α4| to be less than or equal to 2°, it is beneficial to ensure that the feed amounts of the first screw 421 and the second screw 431 on both sides of the driving member 41 tend to be consistent under the drive of the driving member 41.

[0284] It should be noted that the above-mentioned method of providing the deviation angle between the third thread starting point 4223 of the first nut 422 and the fourth thread starting point 4323 of the second nut 432 is only for illustration. Understandably, the included angle between other connecting lines can also be used for comparison, as long as the reference objects of the third thread starting point 4223 and the fourth thread starting point 4323 correspond to each other. When the reference objects are consistent, the deviation angle should be less than or equal to 2°.

[0285] Please refer to the following: Figure 6 , Figure 20 and Figure 25B , Figure 25B yes Figure 25A The diagram shows the structure of the self-locking assembly 4 in which the first screw 421 and the second screw 431 retract.

[0286] In some embodiments, when the motor 10 is in the unlocked state, the first drive shaft 44 abuts against the first screw 421, at least a portion of the first screw 421 being located within the first through hole 81 of the stop member 8.

[0287] In this embodiment, the design of the first drive shaft 44 forms a limit for the retraction of the first screw 421, which can prevent the first screw 421 from retracting too much. This can prevent the first screw 421 from being blocked by the stop 8 after retraction due to deviations in the assembly of the first nut 422, the first screw 421, and the stop 8, thereby preventing the first screw 421 from getting stuck.

[0288] In some examples, when the motor 10 is in the unlocked state, the second part 44b of the first drive shaft 44 is grounded to the bottom wall of the first drive groove 4212. At this time, the end face of the second part 44b of the first drive shaft 44 forms a limit when the first screw 421 retracts, which can prevent the first screw 421 from retracting too much.

[0289] In other examples, the outer diameter of the first portion 44a of the first drive shaft 44 is larger than the outer diameter of the second portion 44b of the first drive shaft 44. A first limiting surface 444 is formed at the connection point between the first portion 44a and the second portion 44b of the first drive shaft 44, and the first limiting surface 444 protrudes from the second portion 44b. When the motor 10 is in the unlocked state, the first limiting surface 444 abuts against the end face of the first portion 421a of the first screw 421 away from the second portion 421b of the first screw 421. At this time, the first limiting surface 444 acts as a limit when the first screw 421 retracts, preventing the first screw 421 from retracting excessively.

[0290] It should be noted that since the first screw 421 and the second screw 431 are driven simultaneously by the output shaft 412, a limiting structure to prevent excessive retraction of the second screw 431 is not required between the second screw 431 and the second transmission shaft 45. Understandably, the structural design between the second screw 431 and the second transmission shaft 45 can adopt the same limiting structure design as that between the first screw 421 and the first transmission shaft 44.

[0291] Please refer to the following: Figure 13A , Figure 18A and Figure 26 , Figure 26 yes Figure 11 The diagram shows the structure of the mover 10a cut along line K1-K1 in some embodiments.

[0292] In some embodiments, the inner wall of the receiving space 212 of the motion stage 2 can be designed to conform to the shape of the body 411 of the drive member 41, so that the drive member 41 can be installed in the receiving space 212 and the body 411 can fit against the inner wall of the receiving space 212, thereby improving the installation stability between the drive member 41 and the motion stage 2.

[0293] Please refer to the following: Figure 26 , Figure 27A and Figure 27B , Figure 27A yes Figure 11 A schematic diagram of the structure of the mover 10a cut along line K2-K2 in some embodiments; Figure 27B yes Figure 11 The diagram shows the structure of the mover 10a cut along line K3-K3 in some embodiments.

[0294] In some embodiments, the first bearing 4112 may be installed on the first limiting rib 217, and the second bearing 4113 may be installed on the second limiting rib 218.

[0295] In this embodiment, since the first limiting rib 217 has a V-shaped or U-shaped structure, it can be used to position the first bearing 4112. Since the second limiting rib 218 has a V-shaped or U-shaped structure, it can be used to position the second bearing 4113. Through the design of the first limiting rib 217 and the second limiting rib 218, the overall positioning and installation of the driving component 41 can be achieved, which can solve the problem of tilting during the assembly of the driving component 41, thereby improving the stability of the self-locking assembly 4 during operation.

[0296] For example, a portion of the first end plate 4114 may be located within the first limiting hole 214, and a portion of the second end plate 4115 may be located within the second limiting hole 215.

[0297] In this embodiment, the first end plate 4114 is engaged with the first limiting hole 214 and the second end plate 4115 is engaged with the second limiting hole 215, which can further improve the stability of the installation between the drive component 41 and the motion platform 2, thereby further reinforcing the installation of the drive component 41.

[0298] The reinforcing plate 4116 can be fixed to the motion platform 2 to limit the first end plate 4114 and the second end plate 4115, thereby further reinforcing the installation of the drive component 41.

[0299] The fixing hole 4117 on the reinforcing plate 4116 can be fitted onto the limiting post 216 on the motion platform 2 to improve the connection stability between the reinforcing plate 4116 and the motion platform 2, thereby improving the stability of the drive component 41 installed on the motion platform 2.

[0300] Please refer to the following: Figure 15 , Figure 24B and Figure 28 , Figure 28 yes Figure 11 The diagram shows the structure of the mover 10a cut along line LL in some embodiments.

[0301] In some embodiments, the first nut 422 may include a first portion 422a and a second portion 422b. The outer dimensions of the first portion 422a of the first nut 422 are larger than the outer dimensions of the second portion 422b of the first nut 422. A second limiting surface 4224 is formed at the connection between the first portion 422a and the second portion 422b of the first nut 422. The first nut 422 may be installed at the first opening 221 of the motion platform 2, with the first portion 422a of the first nut 422 located in the fifth sub-hole 2212 of the first opening 221, and the second portion 422b of the first nut 422 located in the fourth sub-hole 2211 of the first opening 221. The second limiting surface 4224 abuts against the first limiting wall 2213.

[0302] In this embodiment, by abutting the first limiting wall 2213 of the first opening 221 with the second limiting surface 4224 of the first nut 422, the first nut 422 can be limited and installed in the first opening 221, so as to fix the first nut 422 on the motion platform 2.

[0303] In some embodiments, the first magnet 71 may be installed in the first receiving groove 4213 of the first screw 421 to improve the installation stability of the first magnet 71.

[0304] In some embodiments, the second nut 432 may include a first portion 432a and a second portion 432b. The outer dimensions of the first portion 432a of the second nut 432 are larger than the outer dimensions of the second portion 432b of the second nut 432. A third limiting surface 4324 is formed at the connection between the first portion 432a and the second portion 432b of the second nut 432. The second nut 432 may be installed at the second opening 231 of the motion platform 2, with the first portion 432a of the second nut 432 located in the seventh sub-hole 2312 of the second opening 231, and the second portion 432b of the second nut 432 located in the sixth sub-hole 2311 of the second opening 231. The third limiting surface 4324 abuts against the second limiting wall 2314.

[0305] In this embodiment, the second limiting wall 2314 of the second opening 231 abuts against the third limiting surface 4324 of the second nut 432, which enables the second nut 432 to be limited and installed in the second opening 231, so as to fix the second nut 432 on the moving platform 2.

[0306] In some embodiments, the second magnet 91 may be installed in the second receiving groove 4313 of the second screw 431 to improve the installation stability of the second magnet 91.

[0307] Please refer to the following: Figure 16A , Figure 16B and Figure 28In some embodiments, the first limiting block 312 of the first rack 31 may be located on the side of the first nut 422 away from the receiving space 212, and the first limiting block 312 abuts against the side of the first nut 422 opposite to the receiving space 212.

[0308] In this embodiment, the first limiting block 312 in the first rack 31 and the first limiting wall 2213 of the first opening 221 together form a limiting on the first nut 422 in the third direction Y, so as to fix the first nut 422 at the first opening 221 and improve the installation stability of the first nut 422.

[0309] In some embodiments, the second limiting block 322 of the second rack 32 may be located on the side of the second nut 432 away from the receiving space 212, and the second limiting block 322 abuts against the side of the second nut 432 opposite to the receiving space 212.

[0310] In this embodiment, the second limiting block 322 in the second rack 32 and the second limiting wall 2314 of the second opening 231 together form a limiting on the second nut 432 in the third direction Y, so as to fix the second nut 432 at the second opening 231 and improve the installation stability of the second nut 432.

[0311] Please refer to the following: Figure 16A , Figure 16B and Figure 29 , Figure 29 yes Figure 11 The diagram shows the structure of the mover 10a cut along line MM in some embodiments.

[0312] In some embodiments, the first tooth body 311 of the first rack 31 can abut against the side of the first nut 422 facing away from the receiving space 212 to form a limiting installation of the first nut 422, which is beneficial to improving the stability of the first nut 422 installed on the motion platform 2.

[0313] In some embodiments, the second tooth body 321 of the second rack 32 can abut against the side of the second nut 432 facing away from the receiving space 212 to form a limiting installation of the second nut 432, which is beneficial to improving the stability of the second nut 432 installed on the moving platform 2.

[0314] Please refer to the following: Figure 15 , Figure 28 and Figure 29 In some embodiments, the first nut 422 can be installed on the side of the first limiting platform 223 of the motion platform 2 near the receiving space 212. The first limiting platform 223 can form a limiting installation of the first nut 422, thereby improving the stability of the first nut 422 installed on the motion platform 2.

[0315] In some embodiments, the second nut 432 can be installed on the side of the second limiting platform 233 of the motion platform 2 near the receiving space 212. The second limiting platform 233 can limit the installation of the second nut 432, thereby improving the stability of the second nut 432 installed on the motion platform 2.

[0316] Please refer to the following: Figure 5 , Figure 10 , Figure 13A and Figure 29 In some embodiments, the motion platform 2 is mounted on the fixed base 1. A first guide groove 131 of the fixed base 1 and a second guide groove 222 of the motion platform 2 enclose a guide member 15, and another first guide groove 131 of the fixed base 1 and a third guide groove 232 of the motion platform 2 enclose another guide member 15. This achieves a sliding fit between the motion platform 2 and the fixed base 1, which helps improve the sliding stability of the motion platform 2 relative to the fixed base 1, thereby improving the sliding stability of the mover 10a relative to the stator 10b.

[0317] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0318] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0319] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A motor (10) applied to a camera module (100), characterized in that, The motor (10) includes a fixed base (1), a motion platform (2), a drive assembly (3), a self-locking assembly (4), and a stop (8). The motion platform (2) is used to carry optical elements (2011), which are used to change the light incident on the camera module (100) along the first direction (Z) to propagate along the second direction (X); The self-locking assembly (4) is fixedly installed on the motion platform (2). The self-locking assembly (4) includes a drive member (41), a first telescopic member (42), and a second telescopic member (43). The drive member (41) includes a body (411) and an output shaft (412). The output shaft (412) includes a first end (4121) and a second end (4122) opposite to each other. The output shaft (412) passes through the body (411). The first end (4121) of the output shaft (412) The second end (4122) of the output shaft (412) and the second end (43) of the output shaft (412) are respectively exposed on opposite sides of the body (411). The first telescopic member (42) is connected to the first end (4121) of the output shaft (412), and the second telescopic member (43) is connected to the second end (4122) of the output shaft (412). The body (411) is used to drive the output shaft (412) to rotate, so as to drive the first telescopic member (42) and the second telescopic member (43) to extend and retract simultaneously. The fixed base (1) is provided with a plurality of first locking holes (11) and a plurality of second locking holes (12). The arrangement direction of the plurality of first locking holes (11) is the same as the arrangement direction of the plurality of second locking holes (12). The first locking holes (11) and the second locking holes (12) are arranged facing each other and located on opposite sides of the driving member (41). The driving component (3) is used to drive the motion platform (2) to move relative to the fixed base (1) along the second direction (X) to align the first telescopic member (42) with the first locking hole (11) and the second telescopic member (43) with the second locking hole (12). When the motor (10) is in the locked state, the first telescopic member (42) extends into the first locking hole (11), the second telescopic member (43) extends into the second locking hole (12), and the stop member (8) prevents the first telescopic member (42) from continuing to move toward the first locking hole (11); When the motor (10) is in the unlocked state, the first telescopic member (42) is located outside the first locking hole (11), the second telescopic member (43) is located outside the second locking hole (12), and the moving platform (2) can move relative to the fixed base (1) in the second direction (X).

2. The motor (10) as claimed in claim 1, characterized in that, The first telescopic member (42) includes a first screw (421) and a first nut (422); The first screw (421) is connected between the first end (4121) of the output shaft (412) and the first nut (422). The first screw (421) passes through the first nut (422) and is threadedly connected to the first nut (422). The first nut (422) is fixedly installed on the motion platform (2); The drive member (41) is used to drive the first screw (421) to rotate relative to the first nut (422) so as to drive the first screw (421) to extend or retract relative to the motion platform (2); When the motor (10) is in the locked state, the first screw (421) extends into the first locking hole (11), and the stop (8) prevents the first screw (421) from extending further relative to the moving platform (2).

3. The motor (10) as described in claim 2, characterized in that, The first screw (421) includes a first part (421a) and a second part (421b). The first part (421a) of the first screw (421) is closer to the drive member (41) relative to the second part (421b) of the first screw (421). The first part (421a) of the first screw (421) is provided with a first external thread (4211). The maximum outer diameter of the second part (421b) of the first screw (421) is smaller than the maximum outer diameter of the first part (421a) of the first screw (421). The stop member (8) is installed on the motion platform (2). The stop member (8) is located on the side of the first nut (422) away from the drive member (41). The stop member (8) has a first through hole (81). The inner diameter of the first through hole (81) is greater than the maximum outer diameter of the second part (421b) of the first screw (421) and smaller than the maximum outer diameter of the first part (421a) of the first screw (421). When the motor (10) is in the locked state, a portion of the second part (421b) of the first screw (421) extends into the first locking hole (11).

4. The motor (10) as described in claim 3, characterized in that, When the motor (10) is in the unlocked state, at least a portion of the second part (421b) of the first screw (421) is located in the first through hole (81).

5. The motor (10) as claimed in claim 4, characterized in that, The first part (421a) of the first screw (421) is provided with a first transmission groove (4212) on the end face away from the second part (421b) of the first screw (421). The self-locking assembly (4) further includes a first drive shaft (44), which includes a first part (44a) and a second part (44b). The first part (44a) of the first drive shaft (44) is fixedly connected to the first end (4121) of the output shaft (412). At least a portion of the second part (44b) of the first drive shaft (44) is located in the first transmission groove (4212). The second part (44b) of the first drive shaft (44) abuts against the side wall of the first transmission groove (4212) under the drive of the output shaft (412) to drive the first screw (421) to rotate.

6. The motor (10) as claimed in claim 5, characterized in that, When the motor (10) is in the unlocked state, the second part (44b) of the first drive shaft (44) abuts against the bottom wall of the first drive groove (4212).

7. The motor (10) as claimed in claim 5, characterized in that, The outer diameter of the first part (44a) of the first drive shaft (44) is larger than the outer diameter of the second part (44b) of the first drive shaft (44). A first limiting surface (444) is formed at the connection between the first part (44a) of the first drive shaft (44) and the second part (44b) of the first drive shaft (44). The first limiting surface (444) is exposed in the second part (44b) of the first drive shaft (44). When the motor (10) is in the unlocked state, the first limiting surface (444) abuts against the end face of the first part (421a) of the first screw (421) away from the second part (421b) of the first screw (421).

8. The motor (10) as claimed in claim 2, characterized in that, The first nut (422) has a first threaded hole (4221), and the first screw (421) is disposed through the first threaded hole (4221); The stop member (8) is disposed at the end of the first screw (421) near the drive member (41), and the outer diameter of the stop member (8) is larger than the inner diameter of the first threaded hole (4221). When the motor (10) is in the locked state, the stop (8) abuts against the first nut (422).

9. The motor (10) as claimed in claim 8, characterized in that, The stop (8) and the first screw (421) are an integral structure.

10. The motor (10) as claimed in any one of claims 2 to 9, characterized in that, The first screw (421) has a first transmission groove (4212) on its end face facing the driving member (41). The self-locking assembly (4) further includes a first drive shaft (44), which includes a first part (44a) and a second part (44b) connected together. The first part (44a) of the first drive shaft (44) is fixedly connected to the first end (4121) of the output shaft (412), and the second part (44b) of the first drive shaft (44) has a first transmission surface (442), which is located in the first transmission groove (4212). The first transmission surface (442) abuts against the side wall of the first transmission groove (4212) under the rotation of the first transmission shaft (44) to drive the first screw (421) to rotate.

11. The motor (10) as claimed in claim 10, characterized in that, The first part (44a) of the first drive shaft (44) has a first mounting groove (441) on its end face. The first end (4121) of the output shaft (412) is installed in the first mounting groove (441). The opposite sides of the first end (4121) of the output shaft (412) are fixedly connected to the side wall of the first mounting groove (441).

12. The motor (10) as claimed in claim 10, characterized in that, There is a first assembly gap between the first transmission surface (442) and the side wall of the first transmission groove (4212), and the size d0 of the first assembly gap satisfies: 0 < d0 ≤ 0.2 mm.

13. The motor (10) as claimed in any one of claims 2 to 9, 11 and 12, characterized in that, The second telescopic component (43) includes a second screw (431) and a second nut (432); The second screw (431) is connected between the second end (4122) of the output shaft (412) and the second nut (432). The second screw (431) passes through the second nut (432) and is threadedly connected to the second nut (432). The second nut (432) is fixedly installed on the motion platform (2); The drive member (41) is used to drive the second screw (431) to rotate relative to the second nut (432) so as to drive the second screw (431) to extend or retract relative to the motion platform (2); When the motor (10) is in the locked state, the first screw (421) extends into the first locking hole (11), and the second screw (431) extends into the second locking hole (12).

14. The motor (10) as claimed in claim 13, characterized in that, The first nut (422) has a first threaded hole (4221), and a first internal thread (4222) is provided in the first threaded hole (4221). The first screw (421) has a first external thread (4211). The first screw (421) passes through the first threaded hole (4221), and the first external thread (4211) is threadedly connected to the first internal thread (4222). The second nut (432) has a second threaded hole (4321), and a second internal thread (4322) is provided in the second threaded hole (4321). The second screw (431) has a second external thread (4312). The second screw (431) passes through the second threaded hole (4321), and the second external thread (4312) is threadedly connected to the second internal thread (4322). The first external thread (4211) and the second external thread (4312) have opposite thread directions, and the first internal thread (4222) and the second internal thread (4322) have opposite thread directions.

15. The motor (10) as claimed in claim 14, characterized in that, The first external thread (4211) has a first thread start point (4214). In a plane perpendicular to the axis of the first screw (421) and passing through the first thread start point (4214), the first thread start point (4214) is connected to the center of the first screw (421) to form a first connecting line. The first connecting line has a first included angle with the axis of the first screw (421). The second external thread (4312) has a second thread start point (4314). In a plane perpendicular to the axis of the second screw (431) and passing through the second thread start point (4314), the second thread start point (4314) is connected to the center of the second screw (431) to form a second connecting line. The second connecting line has a second included angle with the axis of the second screw (431). The difference between the first included angle and the second included angle is less than or equal to 2°.

16. The motor (10) as claimed in claim 14, characterized in that, The first internal thread (4222) has a third thread start point (4223). In a plane perpendicular to the axis of the first nut (422) and passing through the third thread start point (4223), the third thread start point (4223) is connected to the center of the first nut (422) to form a third connecting line. The third connecting line has a third included angle with the axis of the first nut (422). The second internal thread (4322) has a fourth thread start point (4323). In a plane perpendicular to the axis of the second nut (432) and passing through the fourth thread start point (4323), the fourth thread start point (4323) is connected to the center of the second nut (432) to form a fourth connecting line. The fourth connecting line has a fourth included angle with the axis of the second nut (432). The difference between the third included angle and the fourth included angle is less than or equal to 2°.

17. The motor (10) as claimed in any one of claims 14 to 16, characterized in that, The pitch of the first external thread (4211) is the same as the pitch of the second external thread (4312); And / or, the pitch of the first internal thread (4222) is the same as the pitch of the second internal thread (4322).

18. The motor (10) as claimed in any one of claims 1 to 9, 11, 12, 14 to 16, characterized in that, The motor (10) also includes a self-locking detection component (7), which includes a first magnet (71) and a detection chip (72). The first magnet (71) is installed at the end of the first telescopic member (42) away from the driving member (41). The first magnet (71) can move with the first telescopic member (42). The detection chip (72) is installed on the fixed base (1). The detection chip (72) is positioned opposite the first magnet (71).

19. The motor (10) as claimed in any one of claims 1 to 9, 11, 12, 14 to 16, characterized in that, When the motor (10) is in the locked state, the length of the first telescopic member (42) extending into the first locking hole (11) is greater than or equal to 0.5 mm.

20. The motor (10) as claimed in any one of claims 1 to 9, 11, 12, 14 to 16, characterized in that, The motor (10) also includes a magnetic attraction assembly (9), which includes a second magnet (91) and a magnetic attractor (92). The second magnet (91) is installed at the end of the second telescopic member (43) away from the driving member (41). The second magnet (91) can move with the second telescopic member (43). The magnetic suction member (92) is installed on the fixed base (1). The magnetic suction member (92) and the second magnet (91) are arranged opposite each other.

21. The motor (10) as claimed in any one of claims 1 to 9, 11, 12, 14 to 16, characterized in that, The motion platform (2) has a bearing surface (211), which is disposed away from the bottom wall of the fixed base (1) and is inclined relative to the bottom wall of the fixed base (1). The bearing surface (211) is used to bear optical elements (2011). The motion platform (2) has a receiving space (212), which is located between the bearing surface (211) and the bottom wall of the fixed base (1), and the self-locking component (4) is installed in the receiving space (212).

22. The motor (10) as claimed in claim 21, characterized in that, The motion platform (2) has a first limiting rib (217) and a second limiting rib (218). The first limiting rib (217) and the second limiting rib (218) are both provided on the inner wall of the receiving space (212). The first limiting rib (217) and the second limiting rib (218) are spaced apart. The first limiting rib (217) has a V-shaped structure or a U-shaped structure. The opening of the first limiting rib (217) faces the opening of the receiving space (212). The second limiting rib (218) has a V-shaped structure or a U-shaped structure. The opening of the second limiting rib (218) faces the opening of the receiving space (212). The body (411) includes a housing (4111), a first bearing (4112) and a second bearing (4113). The first bearing (4112) is installed at the first end (4111a) of the housing (4111), and the second bearing (4113) is installed at the second end (4111b) of the housing (4111). The output shaft (412) passes through the first bearing (4112), the housing (4111) and the second bearing (4113). The first bearing (4112) is installed on the first limiting rib (217), and the second bearing (4113) is installed on the second limiting rib (218).

23. The motor (10) as claimed in claim 21, characterized in that, The motion platform (2) has a first limiting hole (214) and a second limiting hole (215), the first limiting hole (214) and the second limiting hole (215) are spaced apart and both are connected to the receiving space (212). The two ends of the body (411) are respectively equipped with a first end plate (4114) and a second end plate (4115). The output shaft (412) passes through the first end plate (4114) and the second end plate (4115). A portion of the first end plate (4114) is located in the first limiting hole (214), and a portion of the second end plate (4115) is located in the second limiting hole (215).

24. The motor (10) as claimed in any one of claims 1 to 9, 11, 12, 14 to 16, 22 and 23, characterized in that, The driving component (41) is a stepper motor.

25. A camera module (100), characterized in that, The device includes a lens (201) and a motor (10) as claimed in any one of claims 1 to 24, wherein the lens (201) includes an optical element (2011) and a lens group (2012), the optical element (2011) is mounted on the motion stage (2) of the motor (10), and the lens group (2012) is located on the image side of the optical element (2011); The optical element (2011) is used to change the light incident on the camera module (100) along the first direction (Z) to propagate along the second direction (X).

26. The camera module (100) as described in claim 25, characterized in that, The lens (201) further includes a first lens group (2013) and a second lens group (2014), which are arranged at intervals. The motion stage (2) is used to move the optical element (2011) to a first position to receive light passing through the first mirror group (2013); The motion stage (2) is also used to move the optical element (2011) to a second position to receive light passing through the second mirror group (2014), wherein the second position is arranged at an interval from the first position in the second direction (X).

27. An electronic device (1000), characterized in that, It includes a housing (300) and a camera module (100) as described in claim 25 or 26, the camera module (100) being mounted on the housing (300).

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