Drive component and camera module

Abstract

A driving component and an imaging module are disclosed. Among them, a self-locking component is provided between the fixed part and the movable part of the driving component. The self-locking component is configured to work in a switchable manner between a conducting state and a non-conducting state. In the conducting state, the driving element and the self-locking component are electrically conducted. The driving element is adapted to drive the movable part to move relative to the fixed part, and the self-locking component is adapted to deform so that there is a gap between the self-locking component and the movable part; in the non-conducting state, the driving element and the self-locking component are not electrically conducted, and the self-locking component is adapted to deform in a direction opposite to that in the conducting state to provide a resistance for hindering the movement of the movable part due to inertia.

Description

Technical Field

[0001] This application relates to the field of camera modules, and particularly to a driving component and a camera module. Among them, a self-locking component is provided between the fixed part and the movable part of the driving component, so as to provide a resistance that hinders the movable part of the driving component from continuing to move due to inertia when the driving component is in a non-working state through the self-locking component, thereby avoiding the movable part hitting the fixed part due to inertia after the driving component switches from the working state to the non-working state to generate dirt such as debris. Background Art

[0002] With the popularization of mobile electronic devices, the related technologies of camera modules used in mobile electronic devices to help users obtain images (such as videos or images) have developed rapidly. At present, the size of the photosensitive chip of the camera module used in mobile electronic devices is getting larger and larger, and the optical lens adapted to the photosensitive chip is getting heavier and heavier, which makes the problem of stain defects caused by the impact between the mover and the stator inside the motor used to drive the optical lens to move more and more obvious.

[0003] Specifically, the motor for the camera module includes a fixed part (that is, the stator) and a movable part (that is, the mover) that is movable relative to the fixed part. Among them, the movable part is used to install the optical lens therein, and the motor also includes a driving component for driving the movable part to move relative to the fixed part, such as a coil and a magnet, etc. It should be understood that when the weight of the optical lens is greater, the inertia of the movable part carrying the optical lens is also greater. In this way, when the motor switches from the working state to the non-working state, under the action of inertia, the movable part carrying the optical lens will continue to maintain the original motion mode and collide with the fixed part. To avoid collision, a limiting part is usually set between the mover and the stator in the traditional motor. For example, a limiting spring is set between the mover and the stator. However, as the weight of the optical lens continues to increase, the resistance provided by the limiting spring can no longer ensure that there is no collision between the movable part and the fixed part.

[0004] Therefore, an optimized motor solution is expected to ensure that the mover of the motor does not collide with the stator in the non-working state, thereby avoiding the problem of dirt inside the motor. Summary of the Invention

[0005] One advantage of this application is to provide a driving component and a camera module. Among them, a self-locking component is provided between the fixed part and the movable part of the driving component, so as to provide a resistance that hinders the movable part of the driving component from continuing to move due to inertia when the driving component is in a non-working state through the self-locking component, thereby avoiding the movable part hitting the fixed part due to inertia after the driving component switches from the working state to the non-working state to generate dirt such as debris.

[0006] Another advantage of the present application is to provide a driving component and a camera module. Among them, in one implementation of the present application, the self-locking component prevents the movable part from moving due to inertia through the frictional self-locking between the self-locking component and the movable part of the driving component when the driving component is in a non-working state, thereby avoiding the movable part from hitting the fixed part due to inertia to generate dirt such as debris after the driving component switches from the working state to the non-working state.

[0007] Another advantage of the present application is to provide a driving component and a camera module. Among them, the self-locking component does not hinder the movable part from moving relative to the fixed part under the action of the driving element of the driving component when the driving component is in the working state, and can avoid the movable part from hitting the fixed part due to inertia to generate dirt such as debris when the driving component is in the non-working state.

[0008] Another advantage of the present application is to provide a driving component and a camera module. Among them, since the self-locking component can prevent the movable part from hitting the fixed part due to inertia, the self-locking component can prevent the driving component from generating noises such as impact abnormal noises.

[0009] Through the following description, other advantages and features of the present application will become obvious and can be realized by the means and combinations specifically pointed out in the claims.

[0010] To achieve the above at least one advantage, the present application provides a driving component, which includes:

[0011] A fixed part;

[0012] A movable part, wherein the movable part is adapted to install an optical lens therein;

[0013] A driving element for driving the movable part to move relative to the fixed part; and

[0014] A self-locking component, wherein the self-locking component includes at least one self-locking element disposed between the fixed part and the movable part, and the self-locking element is configured to work in a switchable manner between a conducting state and a non-conducting state;

[0015] Wherein, in the conducting state, the driving element is adapted to drive the movable part to move relative to the fixed part, and the self-locking element is adapted to deform so that there is a gap between the self-locking element and the movable part;

[0016] Wherein, in the non-conducting state, the self-locking element is adapted to deform so that the self-locking element abuts against the movable part.

[0017] In the drive assembly according to the present application, in the non-conductive state, the self-locking element is adapted to deform in a direction approaching the movable part so as to abut against the movable part.

[0018] In the drive assembly according to the present application, in the non-conductive state, the self-locking element is adapted to deform in a direction approaching the fixed part so as to abut against the fixed part, and the other end of the self-locking element opposite to the end abutting against the fixed part abuts against the movable part.

[0019] In the drive assembly according to the present application, the self-locking element is disposed on the movable part, and wherein the self-locking assembly includes a connection line extending between the self-locking element and the movable part.

[0020] In the drive assembly according to the present application, the fixed part includes a base and a housing, the movable part is movably coupled to the base, and the movable part and the base are covered within the housing.

[0021] In the drive assembly according to the present application, the drive assembly further includes a shrapnel structure disposed between the movable part and the base, so that through the shrapnel structure, the movable part is suspended and supported on the base.

[0022] In the drive assembly according to the present application, the self-locking element is disposed between the upper end surface of the movable part and the housing.

[0023] In the drive assembly according to the present application, the self-locking element is disposed between the outer peripheral surface of the movable part and the base.

[0024] In the drive assembly according to the present application, the movable part has at least one groove recessed in its outer peripheral surface, and wherein, in the non-conductive state, the self-locking element is adapted to deform to approach and fit into the groove.

[0025] In the drive assembly according to the present application, the self-locking assembly further includes at least one SMA wire extending between the self-locking element and the fixed part, so that through the at least one SMA wire, the self-locking element is suspended and disposed between the movable part and the fixed part;

[0026] Wherein, in the conductive state, the at least one SMA wire is conducted and pulls the self-locking element to deform in a direction away from the movable part so that there is a gap between the self-locking element and the movable part;

[0027] Wherein, in the non-conductive state, the self-locking element deforms in a direction approaching the movable part and fits into the groove.

[0028] In the drive assembly according to the present application, the at least one SMA wire includes a first SMA wire and a second SMA wire, wherein the first SMA wire extends from a first end of the self-locking element to the fixing portion, and the second SMA wire extends from a second end of the self-locking element opposite to the first end to the fixing portion.

[0029] In the drive assembly according to the present application, in the non-conductive state, a middle region of the self-locking element fits with the groove.

[0030] In the drive assembly according to the present application, a width dimension of the self-locking element is equal to a width dimension of the groove.

[0031] In the drive assembly according to the present application, the at least one groove includes a first groove corresponding to a first end of the self-locking element and a second groove corresponding to a second end of the self-locking element, wherein in the non-conductive state, the first end of the self-locking element is fitted in the first groove, and the second end of the self-locking element is fitted in the second groove.

[0032] In the drive assembly according to the present application, inner surfaces of the first groove and the second groove are arc-shaped surfaces.

[0033] In the drive assembly according to the present application, a material of the self-locking element is selected from any one of silica gel, rubber, and metal.

[0034] In the drive assembly according to the present application, the at least one groove includes a first groove and a second groove formed at two opposite ends of a side surface of an outer peripheral surface of the movable portion, the at least one self-locking element includes a first self-locking element corresponding to the first groove and a second self-locking element corresponding to the second groove, wherein the self-locking assembly further includes a first SMA wire extending between the first self-locking element and the fixing portion and a second SMA wire extending between the second self-locking element and the fixing portion;

[0035] Wherein, in the conductive state, the first SMA wire and the second SMA wire respectively pull the first self-locking element and the second self-locking element to deform in a direction away from the movable portion so that there are gaps between the first self-locking element and the movable portion and between the second self-locking element and the movable portion;

[0036] Wherein, in the non-conductive state, the first self-locking element and the second self-locking element deform in a direction close to the movable portion and are respectively fitted in the first groove and the second groove.

[0037] In the drive assembly according to the present application, the first self-locking element includes a first self-locking body and a first self-locking head that extends obliquely from the first self-locking body, and the second self-locking element includes a second self-locking body and a second self-locking head that extends obliquely from the second self-locking body. Wherein, the first groove and the second groove have adapted shapes and sizes to the first self-locking element and the second self-locking element.

[0038] In the drive assembly according to the present application, the materials of the first self-locking element and the second self-locking element are selected from any one of silica gel, rubber, and metal.

[0039] In the drive assembly according to the present application, the self-locking element is made of a magnetically attractable material, and the self-locking assembly further includes a magnetic component disposed on the fixed portion and corresponding to the self-locking element;

[0040] Wherein, in the conductive state, the magnetic component is conducted to attract the self-locking element to deform in a direction away from the movable portion so that there is a gap between the self-locking element and the movable portion;

[0041] Wherein, in the non-conductive state, the self-locking element deforms in a direction close to the movable portion and is respectively fitted into the groove.

[0042] In the drive assembly according to the present application, the self-locking element includes a first plate and a second plate that are stacked on each other, and the thermal expansion coefficient of the first plate is greater than that of the second plate; wherein, the self-locking assembly further includes at least one connecting band extending between the self-locking element and the fixed portion;

[0043] Wherein, in the non-conductive state, the first plate with a higher thermal expansion coefficient drives the second plate with a smaller thermal expansion coefficient to warp so that the self-locking element deforms in a direction close to the movable portion and is fitted into the groove.

[0044] In the drive assembly according to the present application, the self-locking element is made of a shape memory metal, wherein, the self-locking assembly further includes at least one connecting band extending between the self-locking element and the fixed portion;

[0045] Wherein, in the conductive state, the self-locking element is conducted to be tensioned in a direction away from the movable portion so that there is a gap between the self-locking element and the movable portion;

[0046] Wherein, in the non-conductive state, the self-locking element is stretched in a direction close to the movable portion and is fitted into the groove.

[0047] According to another aspect of the present application, there is also provided an imaging module, which includes:

[0048] Photosensitive component;

[0049] The driving component as described above that is mounted on the photosensitive component;

[0050] An optical lens, wherein the optical lens is held on the photosensitive path of the photosensitive component in such a way that it is mounted inside a movable part of the driving component.

[0051] Through the understanding of the subsequent description and the drawings, further purposes and advantages of the present application will be fully embodied.

[0052] These and other purposes, features and advantages of the present application are fully embodied through the following detailed description, drawings and claims. Brief Description of the Drawings

[0053] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above and other purposes, features and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0054] Figure 1 A schematic diagram showing a camera module according to an embodiment of the present application.

[0055] Figure 2 A three-dimensional exploded schematic diagram showing the driving component of the camera module according to an embodiment of the present application.

[0056] Figure 3 A three-dimensional exploded schematic diagram showing a variant implementation of the driving component according to an embodiment of the present application.

[0057] Figure 4 A three-dimensional exploded schematic diagram showing another variant implementation of the driving component according to an embodiment of the present application.

[0058] Figure 5 A three-dimensional exploded schematic diagram showing yet another variant implementation of the driving component according to an embodiment of the present application.

[0059] Figure 6 A three-dimensional exploded schematic diagram showing yet another variant implementation of the driving component according to an embodiment of the present application.

[0060] Figure 7 A three-dimensional exploded schematic diagram showing yet another variant implementation of the driving component according to an embodiment of the present application.

[0061] Figure 8The figure shows a three-dimensional exploded schematic diagram of another variant implementation of the drive assembly according to an embodiment of the present application.

[0062] Figure 9 The figure shows a three-dimensional exploded schematic diagram of another variant implementation of the drive assembly according to an embodiment of the present application. Detailed implementation manners

[0063] Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. It should be understood that the present application is not limited by the exemplary embodiments described herein.

[0064] Exemplary camera module

[0065] As Figure 1 and Figure 2 shown, an imaging module according to an embodiment of the present application is illustrated, wherein the imaging module includes: a photosensitive component 10, a drive component 20 mounted on the photosensitive component 10, and an optical lens 30 held on the photosensitive path of the photosensitive component 10 in a manner of being mounted in the drive component 20.

[0066] In an embodiment of the present application, the optical lens 30 includes at least one optical lens 32. Those of ordinary skill in the art should know that the resolution of the optical lens 30 is proportional to the number of optical lenses 32. That is, the higher the resolution, the more the number of optical lenses 32. Therefore, preferably, in an embodiment of the present application, the optical lens 30 includes multiple optical lenses 32. For example, 4, 5, or 6 optical lenses 32.

[0067] Particularly, in an embodiment of the present application, the optical lens 32 of the optical lens 30 is directly mounted in the movable part 22 of the drive component. That is, in an embodiment of the present application, the optical lens 30 and the movable part 22 of the drive component 20 have an integral structure, and the movable part of the drive component 20 forms the mounting carrier of at least one optical lens 32 of the optical lens 30. Of course, in an embodiment of the present application, a lens barrel can also be provided for the optical lens 32, and after the optical lens 32 is mounted in the lens barrel, it is then mounted in the drive component 20. However, the present application is not limited thereto.

[0068] In the embodiment of the present application, the photosensitive component 10 includes a circuit board 11, a photosensitive chip 12, a lens holder 13, and a filter element 14. Among them, the circuit board 11 serves as the mounting substrate of the photosensitive component 10. Specifically, the photosensitive chip 12 is electrically connected to the circuit board 11 (for example, in one example, the photosensitive chip 12 is mounted on the upper surface of the circuit board 11 and is electrically connected to the circuit board 11 by wire bonding) so as to provide the control circuit and electric energy required for the operation of the photosensitive chip 12 through the circuit board 11.

[0069] The lens holder 13 is disposed on the circuit board 11 and is used to support other components. Among them, the lens holder 13 has a light window corresponding to at least the photosensitive area of the photosensitive chip 12. For example, in a specific example of the present application, the lens holder 13 is implemented as a separately formed plastic bracket, which is attached to the surface of the circuit board 11 through an adhesive and is used to support other components. Of course, in other examples of the present application, the lens holder 13 can also be formed on the circuit board 11 in other ways. For example, the lens holder 13 is implemented as a molded lens holder 13, which is integrally formed at a preset position on the circuit board 11 through a molding process.

[0070] Further, in some specific examples of the present application, the filter element 14 can be mounted on the lens holder 13 so that the filter element 14 is held on the photosensitive path of the photosensitive chip 12. In this way, during the process that external light passes through the filter element 14 to reach the photosensitive chip 12, the stray light in the external light can be filtered by the filter element 14 to improve the imaging quality. It is worth mentioning that in other examples of the present application, the filter element 14 can also be mounted on the lens holder 13 in other ways. For example, a filter element bracket is first provided on the lens holder 13, and then the filter element 14 is mounted on the filter element bracket. That is, in this example, the filter element 14 can be indirectly mounted on the lens holder 13 through other support members. Of course, in other examples of the present application, the filter element 14 can also be mounted at other positions of the camera module. For example, the filter element 14 is formed in the optical lens 30 (for example, as a layer of filter film attached to the surface of a certain optical lens of the optical lens 30), which is not limited by the present application.

[0071] In an embodiment of the present application, the driving component 20 is configured to adjust the relative positional relationship between the optical lens 30 and the photosensitive component 10, so as to adjust the optical performance of the imaging module. For example, in a specific example of the present application, the driving component 20 is configured to drive the optical lens 30 to move along the photosensitive path set by the photosensitive component 10 for optical focusing. Of course, in other examples of the present application, the driving component 20 can also achieve other functions. For example, driving the optical lens 30 to move in a plane perpendicular to the photosensitive path for optical image stabilization, which is not limited to the present application.

[0072] As mentioned above, as the imaging pixels of the imaging module become larger, that is, the size of the photosensitive chip becomes larger, the optical lens 30 adapted to the photosensitive chip also becomes heavier, which makes the internal contamination problem of the driving component 20 for driving the optical lens 30 to move more obvious.

[0073] In view of the above technical problems, in an embodiment of the present application, the driving component 20 is provided with a self-locking component 23 between its fixed part 21 and movable part 22, so as to prevent the movable part 22 from moving due to inertia by the resistance provided by the self-locking component 23 when the driving component 20 is in a non-working state, thereby avoiding the movable part 22 hitting the fixed part 21 due to inertia to generate debris and other contaminants after the driving component 20 switches from the working state to the non-working state.

[0074] For example, in an embodiment of the present application, the self-locking component 23 is used to prevent the movable part 22 from moving due to inertia through frictional self-locking between the self-locking component 23 and the movable part 22 of the driving component 20 when the driving component 20 is in a non-working state, thereby avoiding the movable part 22 hitting the fixed part 21 due to inertia to generate debris and other contaminants after the driving component 20 switches from the working state to the non-working state.

[0075] Specifically, as Figure 1 and Figure 2 shown, in an embodiment of the present application, in a specific example of the present application, the driving component 20 is implemented as an electromagnetic driving component 20, which includes a fixed part 21, a movable part 22 movable relative to the fixed part 21, and a driving element 24 for driving the movable part 22 to move relative to the fixed part 21. Correspondingly, the movable part 22 has a lens mounting cavity 220, and the optical lens 30 is mounted in the lens mounting cavity 220. In this way, when the movable part 22 moves relative to the fixed part 21 under the action of the driving element 24, the movable part 22 can carry the optical lens 30 to move to adjust the relative positional relationship between the optical lens 30 and the photosensitive component 10.

[0076] As Figure 1 and Figure 2 shown, in the embodiment of the present application, the fixing portion 21 includes a base 211 and a housing 212. Among them, the movable portion 22 is movably coupled to the base 211, and the movable portion 22 and the base 211 are covered within the housing 212. In the example as Figure 1 and Figure 2 shown, the driving assembly 20 further includes a shrapnel structure 25 disposed between the movable portion 22 and the base 211. Through the shrapnel structure 25, the movable portion 22 is suspended and supported on the base 211. That is to say, in this example, the base 211 and the movable portion 22 are coupled through the shrapnel structure 25, where the movable portion 22 can move relative to the base 211 and the shrapnel structure 25 can limit the movement of the movable portion 22.

[0077] Specifically, the shrapnel structure 25 includes a first elastic element disposed between the lower end of the base 211 and the lower end of the movable portion 22 and a second elastic element disposed between the upper end of the base 211 and the upper end of the movable portion 22. In this way, the base 211 is suspended and clamped between the first elastic element and the second elastic element to limit and support the base 211 up and down through the first elastic element and the second elastic element.

[0078] It is worth mentioning that although in the embodiment of the present application, the example is that the movable portion 22 and the base 211 are connected through the shrapnel structure 25, it should be understood that in other examples of the present application, the movable portion 22 and the base 211 can also be connected in other ways. For example, they can be connected through a ball structure, which is not illustrated in the present application.

[0079] Correspondingly, in the embodiment of the present application, the driving element 24 is a coil-magnet pair. Particularly, in the example as Figure 1 and Figure 2 shown, the coil is disposed on the movable portion 22, and the magnet is disposed on the fixing portion 21 and opposite to the coil. And, in this example, the movable portion 22 has a structure configuration with an inner circle and an outer square, that is, the lens mounting cavity 220 of the movable portion 22 is circular, and the outer peripheral portion of the movable portion 22 is square. Among them, the coil-magnet pairs are respectively disposed at the four corner regions of the outer peripheral portion of the movable portion 22. Through such a deployment method, the utilization rate of the internal space of the driving assembly 20 is fully utilized so that the driving assembly 20 has a relatively more compact structure.

[0080] Of course, in other examples of this application, the installation positions of the coil and the magnet can be swapped, that is, the coil is arranged on the fixed part 21, and the magnet is arranged on the movable part 22. However, this is not limited to this application. Moreover, the position where the coil-magnet pair is deployed within the driving assembly 20 can also be adjusted. For example, the coil-magnet pair is deployed at the four side surfaces of the movable carrier. However, this is not limited to this application.

[0081] Particularly, when the weight of the optical lens 30 becomes larger and larger, the inertia of the movable part 22 carrying the optical lens 30 also becomes larger and larger. In this way, when the driving assembly 20 switches from the working state to the non-working state, under the action of inertia, the movable part 22 carrying the optical lens 30 will continue to maintain the original motion mode and collide with the fixed part 21. That is to say, as the weight of the optical lens 30 continuously increases, the resistance provided by the elastic sheet structure 25 can gradually no longer ensure that there is no collision between the movable part 22 and the fixed part 21.

[0082] Correspondingly, as Figure 1 and Figure 2 shown, in order to prevent debris and other dirt from being generated due to the collision between the movable part 22 and the fixed part 21, in the embodiment of this application, the driving assembly 20 further includes a self-locking assembly 23 arranged between the fixed part 21 and the movable part 22, so as to prevent the movable part 22 from moving due to inertia through the frictional self-locking between the self-locking assembly 23 and the movable part 22 of the driving assembly 20 when the driving assembly 20 is in the non-working state.

[0083] Specifically, in the embodiment of this application, the self-locking assembly 23 includes at least one self-locking element 231 arranged between the fixed part 21 and the movable part 22. Among them, the self-locking element 231 is configured to work in a switchable manner between a conducting state and a non-conducting state. Among them, in the conducting state, the driving element 24 and the self-locking element 231 are electrically conducted. The driving element 24 is adapted to drive the movable part 22 to move relative to the fixed part 21, and the self-locking element 231 is adapted to deform away from the movable part 22 and there is a gap between the self-locking element 231 and the movable part 22. In this way, the self-locking element 231 does not hinder the movable part 22 from moving under the action of the driving element 24. In the non-conducting state, the driving element 24 and the self-locking element 231 are not electrically conducted, and the self-locking element 231 is adapted to deform to approach and abut against the movable part 22, so as to prevent the movable part 22 from moving due to inertia through the friction between the self-locking element 231 and the movable part 22.

[0084] In asFigures 1 to 2 In the illustrated example, the self-locking element 231 is disposed between the outer peripheral surface of the movable part 22 and the base 211. Among them, the self-locking element 231 has a plate structure, and the materials for making it include but are not limited to silica gel, rubber, metal, etc. It should be noted that silica gel and rubber are materials with elasticity by themselves, while metal is a material with elasticity after being deformed. Therefore, the material for making the self-locking element 231 is an elastic material. Correspondingly, when not powered on (that is, in the non-conductive state), the warped self-locking element 231 catches the movable part 22 to limit the movement of the movable part 22 and avoid impact between the movable part 22 and the fixed part 21. When powered on (that is, in the conductive state), the self-locking element 231 is straightened due to the force and has a certain gap with the movable part 22, so that the self-locking element 231 does not hinder the movement of the movable part 22 relative to the fixed part 21.

[0085] More specifically, in the example illustrated in Figure 1 and Figure 2 the self-locking element 231 is disposed on the side wall of the base 211. Among them, a shape memory alloy (SMA) wire 232 (memory metal wire) is connected to each of the upper and lower ends of the self-locking element 231 to suspend and fix the self-locking element 231 to the fixed part 21 through the SMA wire 232. That is, in the embodiment of the present application, the self-locking assembly 23 further includes at least one SMA wire 232 extending between the self-locking element 231 and the fixed part 21, and through the at least one SMA wire 232, the self-locking element 231 is suspended between the movable part 22 and the fixed part 21. Specifically, the at least one SMA wire 232 includes a first SMA wire 232 and a second SMA wire 232. Among them, the first SMA wire 232 extends from the first end of the self-locking element 231 to the fixed part 21, and the second SMA wire 232 extends from the second end of the self-locking element 231 opposite to the first end to the fixed part 21. For example, in a specific example, the first SMA wire 232 extends from the first end of the self-locking element 231 to the outer housing 212, and the second SMA wire 232 extends from the second end of the self-locking element 231 opposite to the first end to the outer housing 212. In this way, the self-locking element 231 is suspended and fixed to the fixed part 21.

[0086] Accordingly, in the conducting state, the first SMA wire 232 and the second SMA wire 232 are conducted and pull the self-locking element 231 to deform in a direction away from the movable part 22 so that there is a gap between the self-locking element 231 and the movable part 22. For example, in a specific example of the present application, the self-locking element 231 deforms in a direction away from the movable part 22 under the action of the first SMA wire 232 and the second SMA wire 232, and finally there is a gap between the self-locking element 231 and the movable part 22, and the self-locking element 231 is parallel to the side surface of the movable part 22. It should be understood that in the energized state, the first SMA wire 232 and the second SMA wire 232 will contract based on their thermal expansion and contraction characteristics, so as to pull the self-locking element 231 away from the movable part 22 from the opposite first end and second end of the self-locking element 231 respectively. Finally, the self-locking element 231 is straightened and there is a gap between the self-locking element 231 and the movable part 22. In the non-energized state, the first SMA wire 232 and the second SMA wire are stretched, and the self-locking element 231 itself has elasticity to deform in a direction close to the movable part 22 and finally abuts against the outer peripheral surface of the movable part 22. It should be understood that when the self-locking element 231 abuts against the outer peripheral surface of the movable part 22, there is friction between the self-locking element 231 and the movable part 22 to lock the movable part 22 through the friction between the two, so as to prevent the movable part 22 from colliding with the fixed part 21 due to inertia.

[0087] In order to improve the self-locking effect, in this example, the movable part 22 has at least one groove 221 recessed on its outer peripheral surface, wherein in the non-conducting state, the self-locking element 231 is adapted to deform to approach and fit into the groove 221. That is, in this example, in the conducting state, the first SMA wire 232 and the second SMA wire 232 are conducted and pull the self-locking element 231 to deform in a direction away from the movable part 22 so that there is a gap between the self-locking element 231 and the movable part 22, and in the non-conducting state, under the action of the first SMA wire 232, the second SMA wire 232 and the elasticity of the self-locking element 231 itself, the self-locking element 231 deforms in a direction close to the movable part 22 and fits into the groove 221. In this way, the movable part 22 is prevented from colliding with the fixed part 21.

[0088] In summary, the camera module according to the embodiments of the present application is described, wherein a self-locking component 23 is provided between the fixed portion 21 and the movable portion 22 of the driving component 20 of the camera module, so as to prevent the movable portion 22 from moving due to inertia through the frictional self-locking between the self-locking component 23 and the movable portion 22 of the driving component 20 when the driving component 20 is in a non-operating state, thereby avoiding the movable portion 22 hitting the fixed portion 21 due to inertia to generate dirt such as debris after the driving component 20 switches from the operating state to the non-operating state.

[0089] Figure 3 FIG. shows a three-dimensional exploded schematic diagram of a modified embodiment of the driving component 20 according to an embodiment of the present application. As Figure 3 shown, consistent with the embodiment Figure 2 illustrated, in this modified embodiment, the self-locking element 231 is made of an elastic material, and an SMA wire 232 (shape memory alloy wire) is connected to each of the upper and lower ends of the self-locking element 231 to suspend and fix the self-locking element 231 to the fixed portion 21 through the SMA wire 232. That is, in this embodiment, the driving component 20 includes a first SMA wire 232 extending from the first end of the self-locking element 231 to the fixed portion 21 and a second SMA wire 232 extending from the second end of the self-locking element 231 opposite to the first end to the fixed portion 21, so that the self-locking element 231 is suspended and fixed to the fixed portion 21 through the first SMA wire 232 and the second SMA wire 232.

[0090] Different from the embodiment Figure 2 illustrated, in this modified embodiment, the movable portion 22 has a first groove 221 corresponding to the first end of the self-locking element 231 and a second groove 221 corresponding to the second end of the self-locking element 231 on its outer surface. Correspondingly, in the non-conducting state, the first end of the self-locking element 231 is fitted into the first groove 221, and the second end of the self-locking element 231 is fitted into the second groove 221. In this way, the effect of snap self-locking is improved. Preferably, in the embodiments of the present application, the inner surfaces of the first groove 221 and the second groove 221 are arc-shaped surfaces. More preferably, the inner surfaces of the first groove 221 and the second groove 221 define a circle, and the circle is concentric with the circular through-hole of the lens mounting hole.

[0091] That is, different from Figure 2Different from the illustrated embodiments, in this modified embodiment, the movable part 22 is provided with a groove 221 at each of the two ends on one side thereof, and the width of the groove 221 is the same as the width of the self-locking element 231. Preferably, the inner side surface of the groove 221 is arc-shaped, and the arc and the circular through hole on the inner side of the movable part 22 are concentric circles. Accordingly, by utilizing the characteristics of thermal shrinkage and cold expansion of the SMA wire 232, when energized, the SMA wire 232 contracts and pulls the self-locking element 231 to straighten the self-locking element 231. At this time, there is a certain gap between the element and the first groove 221 and the second groove 221, enabling the movable part 22 to move and work normally. When not energized, the SMA wire 232 stretches, causing the self-locking element 231 to warp outward. At this time, the self-locking element 231 is in a bent state and the two ends of the self-locking element 231 are in contact with the arcs of the first groove 221 and the second groove 221. The movement of the movable part 22 is restricted by the frictional force, not only realizing the function of limiting the mover of the motor but also realizing the power-off self-locking function.

[0092] Figure 4 FIG. illustrates a three-dimensional exploded schematic view of another modified embodiment of the drive assembly 20 according to an embodiment of the present application. As Figure 4 shown, in this embodiment, the movable part 22 has a first groove 221 and a second groove 221 formed at two opposite ends on one side of the outer peripheral surface of the movable part 22, and the self-locking assembly 23 includes a first self-locking element 231 corresponding to the first groove 221 and a second self-locking element 231 corresponding to the second groove 221. The self-locking assembly 23 further includes a first SMA wire 232 extending between the first self-locking element 231 and the fixed part 21 and a second SMA wire 232 extending between the second self-locking element 231 and the fixed part 21. Among them, in the conducting state, the first SMA wire 232 and the second SMA wire 232 respectively pull the first self-locking element 231 and the second self-locking element 231 to deform in a direction away from the movable part 22 so that there is a gap between the first self-locking element 231 and the movable part 22 and between the second self-locking element 231 and the movable part 22, and, in the non-conducting state, the first self-locking element 231 and the second self-locking element 231 deform in a direction close to the movable part 22 and are respectively fitted into the first groove 221 and the second groove 221.

[0093] That is, in this modified embodiment, a pair of the self-locking elements 231 are arranged side by side at both ends on the outer side of one side of the movable part 22, and a groove 221 is provided at each of the two ends on the outer side of one side of the movable part 22. Among them, a pair of the grooves 221 and a pair of the self-locking elements 231 correspond to each other. In particular, in the embodiment of the present application, the first self-locking element 231 and the second self-locking element 231 have a special shape configuration. Among them, the first self-locking element 231 includes a first self-locking main body and a first self-locking head that obliquely extends from the first self-locking main body, and the second self-locking element 231 includes a second self-locking main body and a second self-locking head that obliquely extends from the second self-locking main body. That is, in this modified embodiment, the upper end heads of the first self-locking element 231 and the second self-locking element 231 are in a bent state at a certain angle. And, in the embodiment of the present application, the first groove 221 and the second groove 221 have a shape and size adapted to the first self-locking element 231 and the second self-locking element 231.

[0094] Preferably, the widths of the first groove 221 and the second groove 221 are the same as the widths of the first self-locking element 231 and the second self-locking element 231. In this way, by utilizing the characteristics of the SMA wire 232 to shrink when heated and expand when cooled, when powered on, the first SMA wire 232 and the second SMA wire 232 contract and respectively pull the first self-locking element 231 and the second self-locking element 231 to straighten the first self-locking element 231 and the second self-locking element 231. At this time, there are certain gaps between the first self-locking element 231 and the second self-locking element 231 and the first groove 221 and the second groove 221 respectively, so that the movable part 22 can move and work normally; when not powered on, the first SMA wire 232 and the second SMA wire 232 are stretched so that the first self-locking element 231 and the second self-locking element 231 warp outwards. At this time, the first self-locking element 231 and the second self-locking element 231 are in a bent state and the upper end heads of the first self-locking element 231 and the second self-locking element 231 fit with the bent parts of the first groove 221 and the second groove 221 of the movable part 22. In this way, the movement of the movable part 22 is restricted by the friction force between the two to achieve the power-off self-locking function.

[0095] Figure 5 The figure shows a three-dimensional exploded schematic diagram of another modified implementation of the drive assembly 20 according to the embodiment of the present application. Different from Figures 2 to 4 the embodiment shown, as in Figure 5In the illustrated modified embodiment, the self-locking element 231 is made of a magnetically attractive material. Among them, the self-locking assembly 23 further includes a magnetic component 232A disposed on the fixed portion 21 and corresponding to the self-locking element 231. Accordingly, in the conducting state, the magnetic component 232A is conducted to attract the self-locking element 231 to deform in a direction away from the movable portion 22 so that there is a gap between the self-locking element 231 and the movable portion 22; in the non-conducting state, the self-locking element 231 deforms in a direction close to the movable portion 22 and is respectively fitted into the groove 221.

[0096] More specifically, in this modified embodiment, the self-locking assembly 23 includes a relatively arranged magnetic component 232A and a self-locking element 231. Among them, the magnetic component 232A includes a coil and an electromagnet, and the materials of the electromagnet and the self-locking element 231 include but are not limited to soft magnetic materials (for example, pure iron, silicon steel) or composite materials containing soft magnetic. In this modified embodiment, the magnetic component 232A is disposed on the fixed portion 21 and located outside the self-locking element 231, and has a certain gap from the self-locking element 231. The self-locking element 231 is disposed in the groove 221 of the movable portion 22. Among them, preferably, the width of the groove 221 is the same as the width of the self-locking element 231, and the length dimension of the groove 221 is similar to the length dimension of the self-locking element 231.

[0097] Accordingly, when not powered on, the shape of the self-locking element 231 is configured such that the self-locking element 231 warps inward to be fitted into the groove 221, thereby restricting the movement of the movable portion 22 through the friction between the two. In this way, both the function of limiting the motor mover and the power-off self-locking function are achieved. When powered on, the magnetic component 232A generates a magnetic field and has a certain suction force on the self-locking element 231. At this time, the self-locking element 231 deforms in a direction away from the movable portion 22 under the attraction of the magnetic field force and finally assumes a straightened state, and is almost parallel to the groove 221 and there is a certain gap between the two, so that the movable portion 22 can move relative to the fixed portion 21 under the action of the driving element 24. Preferably, the area of the coil and the electromagnet of the magnetic component 232A is larger than the self-locking element 231. In this way, the magnetic field range generated by the coil and the electromagnet of the magnetic component 232A covers the entire self-locking element 231, ensuring that the self-locking element 231 can be attracted by the magnetic component 232A.

[0098] Figure 6The figure shows a three-dimensional exploded schematic diagram of another variant implementation of the drive component 20 according to an embodiment of the present application. Different from the above embodiment, in this variant implementation, the self-locking element 231 includes a first plate and a second plate that are stacked on top of each other, and the coefficient of thermal expansion of the first plate is greater than that of the second plate; wherein, the self-locking assembly 23 further includes at least one connecting belt 232B extending between the self-locking element 231 and the fixing portion 21. Accordingly, in the non-conductive state, the first plate with a higher coefficient of thermal expansion drives the second plate with a smaller coefficient of thermal expansion to warp, so that the self-locking element 231 deforms in the direction close to the movable portion 22 and fits into the groove 221.

[0099] More specifically, in this variant implementation, the self-locking assembly 23 includes a self-locking element 231 and at least one connecting belt 232B. Among them, the self-locking element 231 is a composite plate with two types of plates (i.e., the first plate and the second plate), the composite plate has two different coefficients of thermal expansion, and the material of the self-locking element 231 includes but is not limited to shape memory metal, copper alloy, stainless steel, etc. In this variant implementation, the self-locking element 231 is arranged on the side wall of the base 211. Among them, the connecting belt 232B is arranged at the upper and lower ends of the self-locking element 231. The material of the connecting belt 232B can be of flexible board texture. The two ends of the connecting belt 232B are arranged at the fixing portion 21. A groove 221 is arranged on the outer side of one side of the movable portion 22. Preferably, the groove 221 and the self-locking element 231 have matching shapes and sizes. For example, the width of the groove 221 is equal to the width of the self-locking element 231, and the length of the self-locking element 231 is slightly smaller than the length of the groove 221.

[0100] Accordingly, when not powered on, the part of the self-locking element 231 with a large coefficient of thermal expansion will drive the part with a small coefficient of thermal expansion to warp inward. At this time, the self-locking element 231 will bend towards the part with a small coefficient of thermal expansion, and the middle section of the self-locking element 231 fits into the groove 221. In this way, the movement of the movable portion 22 is restricted by the friction force between the two, which not only realizes the function of limiting the motor mover but also realizes the power-off self-locking function. When powered on, since the self-locking element 231 is implemented as a composite plate with two types of plates, its strength is improved. The self-locking element 231 will return to the straightened state due to its own elasticity and have a certain gap with the groove 221, so that the movable portion 22 can move and work normally.

[0101] Figure 7The figure shows a three - dimensional exploded schematic diagram of another variant implementation of the drive component 20 according to an embodiment of the present application. Different from the above - mentioned embodiment, in this variant implementation, the self - locking element 231 is made of shape - memory metal. Among them, the self - locking assembly 23 further includes at least one connecting band 232B extending between the self - locking element 231 and the fixing portion 21. Among them, in the conducting state, the self - locking element 231 is conducted and tensioned in a direction away from the movable portion 22 so that there is a gap between the self - locking element 231 and the movable portion 22. In the non - conducting state, the self - locking element 231 is stretched in a direction close to the movable portion 22 and fits into the groove 221.

[0102] More specifically, in this variant implementation, the self - locking element 231 is a composite plate made of shape - memory metal material, and the self - locking element 231 can deform with temperature change. Correspondingly, the self - locking element 231 is arranged in the groove 221 of the movable portion 22. Among them, the connecting bands 232B are arranged at the upper and lower ends of the self - locking element 231. The material of the connecting band 232B can be of flexible - board texture, and both ends of the connecting band 232B are arranged at the fixing portion 21. Particularly, in this variant implementation, a groove 221 is arranged at each of the two ends on one outer side of the movable portion 22. Among them, the width of the groove 221 is the same as the width of the self - locking element 231, the inner side edge of the groove 221 is arc - shaped, and this arc and the circular through - hole of the lens mounting cavity 220 of the movable portion 22 are concentric circles.

[0103] Correspondingly, by using the property of shape - memory metal to shrink when heated and expand when cooled, when powered on, the self - locking element 231 is tensioned, so that there is a certain gap between the self - locking element 231 and the groove 221 of the movable portion 22, enabling the movable portion 22 to move and work normally. When not powered on, the self - locking element 231 is stretched, causing the self - locking element 231 to warp outwards. At this time, the self - locking element 231 is in a bent state and the two ends of the self - locking element 231 fit into the arc - shaped portions of a pair of grooves 221 of the movable portion 22. In this way, the movement of the movable portion 22 caused by inertia is restricted by the friction force between the two, achieving both the function of limiting the motor mover and the power - off self - locking function.

[0104] Figure 8 The figure shows a three - dimensional exploded schematic diagram of another variant implementation of the drive component 20 according to an embodiment of the present application. As Figure 8 shown, in this variant implementation, the self - locking assembly 23 includes at least one self - locking element 231 and at least one connecting band 232B. The material of the self - locking element 231 is a composite plate containing shape - memory metal, and the self - locking element 231 can deform with temperature change.

[0105] In this modified embodiment, the self-locking element 231 is disposed in the groove 221 of the movable part 22. Wherein, the connecting band 232B is disposed at the upper end of the self-locking element 231. The material of the connecting band 232B can be a flexible board texture, and the upper end of the connecting band 232B is connected to the fixed part 21. In particular, in this modified embodiment, the self-locking assembly 23 includes a pair of the self-locking elements 231. Wherein, the pair of the self-locking elements 231 are arranged side by side at both ends on the outer side of one side of the movable part 22, and the upper end head of the self-locking element 231 is in a bent state at a certain angle. And, a groove 221 is disposed at both ends on the outer side of one side of the movable part 22. The inner side of the groove 221 is in the same bent state as the upper end head of the self-locking element 231, and the width of the groove 221 is the same as the width of the self-locking element 231.

[0106] Under the above configuration, by utilizing the property of shape memory alloy that it shrinks when heated and expands when cooled, when powered on, the self-locking element 231 is tensioned. At this time, the self-locking element 231 is almost parallel to the bent portion of the groove 221 of the movable part 22 and there is a certain gap between them, so that the movable part 22 can move and work normally. Correspondingly, when not powered on, the self-locking element 231 is stretched, so that the self-locking element 231 warps outwards. At this time, the self-locking element 231 is in a bent state and the upper end head of the self-locking element 231 fits with the bent portion of the groove 221 of the movable part 22. In this way, the movement of the movable part 22 due to inertia is restricted by the friction between the two, which not only realizes the function of limiting the motor mover, but also realizes the power-off self-locking function.

[0107] It should be noted that in the modified embodiment as Figures 6 to 8 shown, the self-locking function of the self-locking assembly 23 is constructed based on the principle that the material of the self-locking element 231 deforms due to temperature change. It should be understood that as Figures 6 to 8 only three implementation manners are exemplified. It should be understood that in other modified embodiments, other embodiments can also be constructed based on the principle that the material of the self-locking element 231 deforms due to temperature change. In this regard, it is not limited to this application.

[0108] Figure 9 The figure shows a three-dimensional exploded view of another modified implementation of the driving assembly 20 according to the embodiment of the present application. It should be noted that in as Figures 2 to 8In the illustrated example, the self-locking assembly 23 is disposed between the outer peripheral surface of the movable part 22 and the base 211. For example, the self-locking element 231 of the self-locking assembly 23 is disposed on the side wall of the base 211, or the self-locking element 231 of the self-locking assembly 23 is disposed in the groove 221 of the movable part 22. However, in the Figure 9 illustrated variant embodiment, the setting position of the self-locking assembly 23 changes.

[0109] Specifically, as Figure 9 shown, in this variant embodiment, the self-locking element 231 of the self-locking assembly 23 is disposed between the upper end surface of the movable part 22 and the outer housing 212. For example, in the Figure 9 illustrated example, the self-locking assembly 23 is disposed between the fixed part 21 and the elastic sheet structure 25. It should be understood that Figures 2 to 8 the illustrated embodiments of the self-locking assembly 23 can all be applied to the Figure 9 illustrated variant embodiment. To avoid repetition, it will not be elaborated here.

[0110] It is worth mentioning that although in the above embodiments and variant embodiments, the frictional force between the self-locking element 231 of the self-locking assembly 23 and the movable part 22 is used as the acting force for locking the movable part 22. It should be understood that in other examples of the present application, other acting forces of the self-locking assembly 23 can also be used to prevent the movable part 22 from continuing to move due to inertia. For example, in another embodiment of the present application, the self-locking assembly 23 can be disposed on the movable part 22. For example, the self-locking element 231 is suspended on the movable part 22 through a connecting line. In this way, when the self-locking assembly 23 is in the working state, since the self-locking assembly 23 is disposed on the movable part 22, the self-locking assembly 23 does not hinder the movement of the movable part 22. When the self-locking assembly 23 is in the non-working state, the self-locking element 231 abuts against the fixed part 21 under the action of the connecting line or the self-elastic force of the self-locking element 231. For example, it abuts against the base 211 of the fixed part 21. In this way, the connecting line is tightened to generate a pulling force for hindering the movement of the movable part 22. That is, in this embodiment, the acting force for hindering the movable part 22 from continuing to move due to inertia is the pulling force provided by the connecting line. Specifically, in some examples, the connecting line can be an SMA wire 232 or a connecting belt 232B, but this is not limited to the present application.

[0111] It is also worth mentioning that although in the embodiments of the present application, the self-locking component 23 is exemplified as being applied to the upright camera module, it should be understood that in other examples of the present application, the self-locking component can also be applied to other types of camera modules. For example, a periscope camera module with an optical zoom function. Accordingly, when the camera module is a periscope camera module with an optical zoom function, the optical lens of the periscope camera module includes a fixed part, a zoom part, and a focusing part. Among them, the zoom part and the focusing part need to be moved. Similarly, when the periscope camera module switches from the working state to the non-working state, the zoom part and the focusing part may continue to move due to inertia, resulting in the generation of dirt. Accordingly, in the application scenario of the periscope camera module, the self-locking component 23 can also be applied. Specifically, it can be disposed between the focusing part and the fixed part, and / or between the zoom part and the fixed part.

[0112] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the above principles, the embodiments of the present invention can be deformed or modified in any way.

Claims

1. A driving component, characterized in that, Comprising: A fixed part; A movable part, wherein the movable part is adapted to mount an optical lens therein; A driving element for driving the movable part to move relative to the fixed part; and A self-locking assembly, wherein the self-locking assembly includes at least one self-locking element disposed between the fixed part and the movable part, and the self-locking element is configured to operate in a switchable manner between a conducting state and a non-conducting state; Wherein, in the conducting state, the driving element is adapted to drive the movable part to move relative to the fixed part, and the self-locking element is adapted to deform so that there is a gap between the self-locking element and the movable part; Wherein, in the non-conducting state, the self-locking element is adapted to deform so that the self-locking element abuts against the movable part; The movable part has at least one groove recessed in its outer peripheral surface, and the at least one groove includes a first groove corresponding to a first end of the self-locking element and a second groove corresponding to a second end of the self-locking element. Wherein, in the non-conducting state, the first end of the self-locking element deforms in a direction close to the movable part and fits into the first groove, and the second end of the self-locking element deforms in a direction close to the movable part and fits into the second groove. Wherein, the inner surfaces of the first groove and the second groove are arc-shaped surfaces.

2. The drive assembly according to claim 1, wherein, The fixed part includes a base and a housing, and the movable part is movably coupled to the base, and the movable part and the base are covered within the housing.

3. The drive assembly according to claim 2, wherein, The driving assembly further includes a shrapnel structure disposed between the movable part and the base, so that through the shrapnel structure, the movable part is suspended and supported on the base.

4. The drive assembly according to claim 2, wherein, The self-locking element is disposed between the outer peripheral surface of the movable part and the base.

5. The drive assembly according to claim 4, wherein, The self-locking assembly further includes at least one SMA wire extending between the self-locking element and the fixed part, so that through the at least one SMA wire, the self-locking element is suspended and disposed between the movable part and the fixed part; Wherein, in the conducting state, the at least one SMA wire is conducted and pulls the self-locking element to deform in a direction away from the movable part so that there is a gap between the self-locking element and the movable part; Wherein, in the non-conducting state, the self-locking element deforms in a direction close to the movable part and fits into the groove.

6. The drive assembly according to claim 5, wherein, The at least one SMA wire includes a first SMA wire and a second SMA wire. Wherein, the first SMA wire extends from a first end of the self-locking element to the fixed part, and the second SMA wire extends from a second end of the self-locking element opposite to the first end to the fixed part.

7. The drive assembly according to claim 2, wherein, The self-locking element is made of a memory metal, and the self-locking assembly further includes at least one connecting band extending between the self-locking element and the fixed part; Wherein, in the conducting state, the self-locking element is conducted and tensioned in a direction away from the movable part so that there is a gap between the self-locking element and the movable part; Wherein, in the non-conducting state, both ends of the self-locking element are stretched in a direction close to the movable part and fit into the groove.

8. A driving component, characterized in that, Comprising: A fixed part; A movable part, wherein the movable part is adapted to mount an optical lens therein; A driving element for driving the movable part to move relative to the fixed part; and A self-locking assembly, wherein the self-locking assembly includes at least one self-locking element disposed between the fixed part and the movable part, and the self-locking element is configured to operate switchably between a conducting state and a non-conducting state; Wherein, in the conducting state, the driving element is adapted to drive the movable part to move relative to the fixed part, and the self-locking element is adapted to deform so that there is a gap between the self-locking element and the movable part; Wherein, in the non-conducting state, the self-locking element is adapted to deform so that the self-locking element abuts against the movable part; The movable part has at least one groove recessed in its outer peripheral surface, the at least one groove includes a first groove and a second groove formed at two opposite ends of one side of the outer peripheral surface of the movable part, the at least one self-locking element includes a first self-locking element corresponding to the first groove and a second self-locking element corresponding to the second groove, wherein, in the non-conducting state, the upper end head of the first self-locking element bends in a direction close to the movable part and fits into the first groove, and the first self-locking element fits with the bent part of the first groove; the upper end head of the second self-locking element bends in a direction close to the movable part and fits into the second groove, and the upper end head of the second self-locking element fits with the bent part of the second groove.

9. The drive assembly according to claim 8, wherein, The self-locking assembly further includes a first SMA wire extending between the first self-locking element and the fixed part and a second SMA wire extending between the second self-locking element and the fixed part; wherein, in the conducting state, the first SMA wire and the second SMA wire respectively pull the first self-locking element and the second self-locking element to deform in a direction away from the movable part so that there are gaps between the first self-locking element and the movable part and between the second self-locking element and the movable part.

10. An imaging module, characterized in that, Comprising: A photosensitive component; A driving assembly as claimed in any one of claims 1 to 9, which is mounted on the photosensitive component; An optical lens, wherein the optical lens is held on the photosensitive path of the photosensitive component in such a way that it is mounted in the movable part of the driving assembly.

Images