CN117135457A

CN117135457A - Telescopic component, driving motor, camera module and electronic equipment

Info

Publication number: CN117135457A
Application number: CN202310402798.1A
Authority: CN
Inventors: 夏太红
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-11-28
Anticipated expiration: 2043-04-11

Abstract

The application provides a telescopic assembly, a driving motor, a camera module and electronic equipment, and relates to the technical field of braking, wherein when the telescopic assembly is used in the driving motor, a driven piece of the telescopic assembly moves relative to a first carrier, so that stopping and braking of the first carrier are facilitated when the driven piece moves to be in abutting fit with the first carrier; when the follower is moved out of engagement with the first carrier, rotation of the first carrier is facilitated.

Description

Telescopic component, driving motor, camera module and electronic equipment

Technical Field

The application relates to the technical field of braking, in particular to a telescopic assembly, a driving motor, a camera module and electronic equipment.

Background

With the update iteration of electronic devices such as mobile phones, tablet computers, personal computers (Personal Computer, PC), users have increasingly demanded shooting performance of camera modules in electronic devices.

In order to meet the shooting requirements of users, a driving motor is usually integrated in an existing camera module. The driving motor is used for driving the light path turning element to rotate relative to the shell of the electronic equipment so as to rapidly switch the shooting angle of the camera module, thereby preventing the problem of image deformation or blurring caused by the movement of a shooting object or the shake of the electronic equipment, and further ensuring the shooting quality of the electronic equipment. However, when the driving motor drives the optical path turning element to rotate to the target photographing angle, how to achieve timely stopping and braking of the driving motor is an important research direction of various manufacturers.

Disclosure of Invention

The embodiment of the application provides a telescopic assembly, a driving motor, a camera module and electronic equipment, wherein when the telescopic assembly is used in the driving motor, a driven piece of the telescopic assembly moves relative to a first carrier, so that when the driven piece moves to be in abutting fit with the first carrier, stopping and braking of the first carrier are facilitated; rotation of the first carrier is thereby facilitated when the follower is moved out of engagement with the first carrier.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:

in a first aspect, the present application provides a telescopic assembly for a drive motor of a camera module, the camera module comprising an optical path turning element, the drive motor comprising a support and a first carrier, the first carrier being rotatable about a first axis relative to the support, the optical path turning element being fixed to the first carrier, the telescopic assembly being between the first carrier and the support. The telescoping assembly includes: mount pad, follower, elastic component and slider. The telescopic component is fixed on the supporting seat through the mounting seat; the elastic piece is provided with a fixing part and an elastic deformation part, the fixing part is fixed on the mounting seat, the driven piece is fixed on the elastic deformation part, the elastic deformation part applies elastic force directed to the first carrier to the driven piece, and the elastic deformation part is provided with a first matching part; the sliding piece is connected to the mounting seat in a sliding mode along the first direction, a second matching portion is arranged on the sliding piece and matched with the first matching portion when the sliding piece slides relative to the mounting seat along the first direction, so that the elastic deformation portion elastically deforms in the second direction to drive the driven piece to move in the second direction, the driven piece moves to switch between a braking state in abutting fit with the first carrier and an unlocking state in separation fit with the first carrier, and the second direction is perpendicular to the first direction.

According to the telescopic assembly disclosed by the application, when the sliding piece slides relative to the mounting seat, the second matching part and the first matching part are matched to force the elastic deformation part to deform to different degrees, the driven piece can be driven to reciprocate in the second direction by the different degrees of deformation of the elastic deformation part, and when the driven piece moves to be in abutting matching with the first carrier in the direction of approaching to the first carrier, the telescopic assembly is in a braking state. Therefore, the rotation of the first carrier can be limited by the friction force generated by the relative motion between the driven piece and the first carrier, so that the braking can be stopped in time when the driving force applied by the driving motor to the optical path turning element and rotating around the first axis and/or the second axis is withdrawn. When the driven piece moves to be disengaged from the first carrier in the direction away from the first carrier, no relative friction force exists between the driven piece and the first carrier, so that interference generated by the telescopic component on rotation of the first carrier can be prevented in the process that the driving motor applies driving force rotating around the first axis and/or the second axis to the optical path turning element, and reliable driving of the optical path turning element by the driving motor is facilitated. In addition, the whole telescopic assembly is simple in structure and high in reliability. And the elastic deformation part can apply elastic force pointing to the first carrier to the driven piece, so that the extrusion acting force between the driven piece and the first carrier can be increased in a braking state, the friction force is improved, and quick braking can be realized.

In some embodiments, the elastic deformation portion includes a support portion and an elastic arm, and in a plane perpendicular to the second direction, orthographic projections of the support portion and orthographic projections of the fixing portion are arranged at intervals; the elastic arm is connected between the supporting part and the fixing part, and the driven piece is arranged at one end of the supporting part in the second direction. The design is favorable to satisfying the follower and moving the displacement in the second direction to on the basis of guaranteeing that the follower switches between unblock state and braking state, further reduce the size of whole flexible subassembly in the second direction, and then be favorable to reducing the size of driving motor in the second direction, then be favorable to realizing electronic equipment's slim design.

In some embodiments, the first engaging portion is disposed at an end of the supporting portion where the driven member is located. Therefore, the elastic arm is connected between the supporting part and the fixing part, so that the position where the supporting part is located has the largest deformation in the second direction, the first matching part is arranged on the supporting part, the second matching part is beneficial to applying relatively smaller first acting force to the first matching part, and larger deformation can be obtained, so that the sliding smoothness of the sliding part is more beneficial. In addition, the follower and the first matching part are positioned on the same side of the supporting part, and a part of the size space on the second part can be shared, so that the thickness size of the telescopic assembly is reduced.

In some embodiments, the elastic arms and the fixing portions are two, the two elastic arms and the two fixing portions are in one-to-one correspondence, the two elastic arms are symmetrically arranged on two sides of the supporting portion, each elastic arm is connected between the corresponding fixing portion and the supporting portion, and the elastic deformation portion arches towards one side where the driven piece is located.

In some embodiments, to facilitate the installation of the elastic member and the sliding member, the mounting seat has an installation space, and the elastic member and the sliding member are both disposed in the installation space; the driven piece comprises a braking part, and the braking part is positioned on the outer side of the mounting seat.

In some embodiments, the mount includes a first plate and the slider includes a second plate positioned between the first plate and the elastically deformable portion in the second direction; the braking portion is located one side of the first plate body far away from the second plate body, the first matching portion is arranged on the surface of the elastic deformation portion, facing the second plate body, and the second matching portion is arranged on the surface of the second plate body, facing the elastic deformation portion.

In some embodiments, a limiting rib is arranged on the surface, facing the first plate body, of the second plate body, and the limiting rib is in contact with the first plate body. And/or the surface of the first plate body facing the second plate body is provided with a limiting convex rib, and the limiting convex rib is in contact with the second plate body. Thus, the sliding smoothness of the sliding piece is improved.

In some embodiments, the first mating portion has a first inclined surface that is in abutting mating with the second mating portion, in a first direction, the first inclined surface has a first end and a second end opposite to each other, a distance between the second end and the second plate in a second direction is greater than a distance between the first end and the second plate in the second direction, and the sliding member slides relative to the mounting seat along the first direction to drive the second mating portion to switch between the first end and the second end. The matching mode of the first matching part and the second matching part has the advantages of simple structure, high reliability and convenience in processing and manufacturing.

In some embodiments, the second mating portion has a second inclined surface that is in abutting mating with the first mating portion, in the first direction, the second inclined surface has a third end and a fourth end opposite to each other, a distance between the fourth end and the elastically deforming portion in the second direction is greater than a distance between the third end and the elastically deforming portion in the second direction, and the sliding member slides relative to the mounting seat along the first direction to drive one of the third end and the fourth end to be in switching mating with the first mating portion. The matching mode of the first matching part and the second matching part has the advantages of simple structure, high reliability and convenience in processing and manufacturing.

In some embodiments, the second mating portion has a second inclined surface that is in abutting mating engagement with the first inclined surface, the second inclined surface being aligned with the first inclined surface. Therefore, in the process of the relative movement of the second matching part and the first matching part, the guiding function is good for the relative movement of the second matching part and the first matching part, and the reliability of the relative movement between the second matching part and the first matching part is improved.

In some embodiments, the first mating portion is a protrusion protruding from a surface of the elastically deforming portion; the second plate body is provided with a first avoiding hole, along the first direction, and from the second end to the direction of the first end, and the second matching part and the first avoiding hole are sequentially arranged and connected. Therefore, the first avoiding hole can have the effect of avoiding the first end, so that the problem that the first end of the first matching part is blocked by contact with the surface of the sliding part due to the fact that the first avoiding hole is not formed is prevented.

In some embodiments, the second plate body is provided with a bending member, one end of the bending member is integrally connected with the hole wall of the first avoidance hole, and after the bending member extends in a direction close to the first matching portion, the bending member is folded in a direction away from the first avoidance hole along the first direction, and a portion, located outside the first avoidance hole, of the bending member defines the second matching portion. Therefore, in the actual machining process, the blank can be machined by adopting a stamping process to form the first avoiding hole, the part of the blank originally used for forming the first avoiding hole can be folded to form the folded piece, so that the second matching part is formed, the machining process is simple, the machining efficiency is improved, and the machining cost is reduced.

In some embodiments, the first mating portion is a protrusion protruding from a surface of the elastically deforming portion; and/or the second matching part is a bulge protruding from the surface of the second plate body.

In some embodiments, the telescoping assembly further comprises a spring positioned within the mounting space, the spring having a first connecting end and a second connecting end opposite in a first direction, the first connecting end being fixed relative to the slider and the second connecting end being fixed relative to the mounting seat, the spring being configured to apply an elastic force to the slider in the first direction. Therefore, the spring can enable the second matching part to be in butt joint with the first matching part, and matching reliability of the second matching part and the first matching part is improved in the process that the sliding piece moves relative to the mounting seat.

In some embodiments, the springs are arranged in two groups, the two groups of springs being respectively arranged at two sides of the second mating portion in the first direction. Thereby being beneficial to improving the matching reliability of the second matching part and the first matching part in the process of moving the sliding part relative to the mounting seat.

In some embodiments, the first connecting end portion is provided with a first clamping hole, a first clamping plate is arranged on the surface, facing the spring, of the second plate body, and the first clamping plate is matched with the first clamping hole; and/or the second connecting end part is provided with a second clamping hole, the first plate body is provided with a second clamping plate, and the second clamping plate is matched with the second clamping hole.

In some embodiments, the spring is between the second plate body and the elastic deformation portion, the second plate body has a through hole penetrating through the second plate body, the second clamping plate is penetrated through the through hole, and the size of the through hole in the first direction is larger than the size of the second clamping plate in the first direction. Therefore, on one hand, interference of the sliding piece on the fixing between the mounting seat and the spring can be avoided, and on the other hand, the sliding of the sliding piece can be guided by utilizing the cooperation of the through hole and the second clamping plate, so that the sliding reliability of the sliding piece is improved.

In some embodiments, the first mating portion is a first magnet, the second mating portion is a second magnet, the magnetizing direction of the first magnet, the magnetizing direction of the second magnet and the second direction are parallel, and the magnetizing direction of the first magnet and the magnetizing direction of the second magnet are opposite; the sliding piece slides relative to the mounting seat along the first direction so as to drive the second magnet to switch between a right-facing matching position right opposite to the first magnet and a staggered matching position staggered with the first magnet. Therefore, the structure is simple, and the cost is low.

In some embodiments, the mounting base includes two first side plates, the two first side plates are oppositely disposed at two ends of the first plate body along the third direction, and the two ends of the fixing portion along the third direction are respectively connected with the two first side plates in a one-to-one correspondence manner, wherein the third direction is perpendicular to the second direction and the first direction.

In some embodiments, the sliding piece comprises two second side plates, and the two second side plates are oppositely arranged at two ends of the second plate body along the third direction; the two second side plates are positioned between the two first side plates, and the two second side plates are in one-to-one correspondence with the two first side plates; in the corresponding second side plate and first side plate, the surface of the second side plate facing the first side plate is provided with a limit rib, and the limit rib is contacted with the first side plate; and/or, in the corresponding second side plate and first side plate, the surface of the first side plate facing the second side plate is provided with a limit rib, and the limit rib is in contact with the second side plate. The sliding smoothness of the sliding piece is improved.

In some embodiments, the driven member includes a connecting plate, two ends of the braking portion in a third direction are respectively connected with the connecting plate, a through hole is formed in the first plate body, the connecting plate is arranged through the through hole, the connecting plate is connected with the elastic deformation portion, and the third direction is perpendicular to the second direction and the first direction. Therefore, on one hand, the through holes can avoid the connecting plate, the first plate body is prevented from interfering with the movement of the driven piece in the Z-axis direction, and on the other hand, the through holes and the connecting plate are matched, so that the driven piece can move in the Z-axis direction at least to a certain extent and a guiding effect is achieved.

In some embodiments, the slider is between the connection plates at both ends of the braking portion in the third direction.

In some embodiments, the telescoping assembly further comprises a first drive structure coupled to the slider, the first drive structure for driving the slider to slide in a first direction relative to the mount.

In some embodiments, the first driving structure is a shape memory alloy member, and along a first direction, the first driving structure has a first fixed end and a second fixed end opposite to each other, the first fixed end is disposed on the sliding member, and the second fixed end is disposed on the mounting seat. Through setting up first drive structure as deformation memory alloy spare, utilize deformation memory alloy's deformation characteristics and produce the length variation from first stiff end to second stiff end and drive the slider motion, simplified first drive structure's structure to reduced first drive structure's occupation space, reduced assembly space's requirement and assembly degree of difficulty.

In some embodiments, the slider includes a second plate located on one side of the elastically deforming portion in the second direction, the first driving structure being located between the second plate and the elastically deforming portion; the surface of the second plate body facing the elastic deformation part is provided with a hook part, a hanging groove is formed on the surface of the hook part, which is away from the second fixed end, and the first fixed end is accommodated in the hanging groove. Therefore, the structure is simple, and the assembly is convenient.

In some embodiments, the first driving structure includes a first driving section, a second driving section, and a third driving section, where the first driving section and the second driving section are disposed opposite to each other in a third direction, one end of the first driving section along the first direction and one end of the second driving section along the first direction define a second fixed end, the third driving section is connected between the other end of the first driving section along the first direction and the other end of the second driving section along the first direction, the second mating portion is between the first driving section and the second driving section, two ends of the hanging groove along the third direction are open, and the third driving section defines the first fixed end, where the third direction is perpendicular to both the second direction and the first direction. Therefore, the telescopic assembly is reasonable in layout and compact in structure.

In some embodiments, the groove bottom wall of the hanging groove is formed as an arc surface arched toward a direction away from the second fixed end. Therefore, smooth transition between the groove bottom wall of the hanging groove and the two side surfaces of the hook part along the arrangement direction of the first driving section and the second driving section is facilitated to be improved, and scratch to the first driving structure due to sharp angles between the groove bottom wall of the hanging groove and the two side surfaces of the hook part along the arrangement direction of the first driving section and the second driving section is prevented, so that the service life of the first driving structure is prolonged.

In some embodiments, the mounting base is provided with a spring clip; the flexible assembly further comprises a flexible circuit board, the flexible circuit board comprises a first flexible portion, the second fixed end is fixed to the first flexible portion and is electrically connected with the flexible circuit board, and the integral structure formed by the first flexible portion and the second fixed end is clamped in the elastic clamp. Thereby facilitating assembly.

In some embodiments, the telescopic assembly further comprises a second driving structure, the second driving structure is a shape memory alloy piece, the second driving structure is provided with a third fixed end and a fourth fixed end which are opposite, the third fixed end is arranged on the sliding piece, and the fourth fixed end is arranged on the mounting seat; the fourth fixed end is positioned at one side of the third fixed end, which is far away from the second fixed end, along the first direction, and the second fixed end is positioned at one side of the first fixed end, which is far away from the fourth fixed end; wherein the deformation state of the second driving structure is opposite to the deformation state of the first driving structure. For example, the deformation state of the second driving structure being opposite to the deformation state of the first driving structure means that the on-off state of the second driving structure is opposite to the on-off state of the first driving structure. Thus, the cooperation of the second driving structure and the first driving structure is beneficial to realizing the reliability of the reciprocating motion of the sliding piece.

In some embodiments, the telescoping assembly further comprises a hall sensor and a magnet; the Hall sensor is relatively fixed with the mounting seat, and the magnet is relatively fixed with the sliding piece; the Hall sensor is used for sensing the magnetic field change of the magnet so as to detect the sliding distance of the sliding piece relative to the mounting seat in the first direction.

In a second aspect, the present application provides a drive motor comprising: a support base, a first carrier, a first drive assembly, and a telescoping assembly of any of the above. The first carrier is arranged on the supporting seat; the first driving assembly is used for driving the first carrier to rotate around a first axis relative to the supporting seat; the telescopic assembly is positioned between the first carrier and the supporting seat, the telescopic assembly is fixed on the supporting seat through the mounting seat, the elastic deformation part applies elastic force pointing to the first carrier to the driven piece, and the driven piece moves to switch between a braking state in abutting fit with the first carrier and an unlocking state in separation from the first carrier. Thereby, a closed loop control of the drive motor is facilitated.

In a third aspect, the present application provides a camera module, including: the optical path turning element, the optical lens, the photosensitive device and the driving motor. The optical lens is positioned on the light-emitting side of the light path turning element; the photosensitive device is positioned on the light emitting side of the optical lens; the light path turning element is fixed on the first carrier.

In a fourth aspect, the present application provides an electronic device comprising: the camera module comprises a screen, a back shell, a camera module and a first circuit board. The back shell is fixed with the screen, the camera module is accommodated in the back shell, the first circuit board is accommodated in the back shell, and the first circuit board is electrically connected with the camera module.

The technical effects of any one of the design manners of the second aspect to the fourth aspect may be referred to the technical effects of the different design manners of the first aspect, and will not be described herein.

Drawings

Fig. 1 is a perspective view of an electronic device provided in some embodiments of the present application;

FIG. 2 is a schematic diagram of an exploded structure of the electronic device shown in FIG. 1;

fig. 3 is a block diagram of a camera module according to some embodiments of the present application;

FIG. 4 is a schematic diagram illustrating a motion state of the camera module shown in FIG. 3 during tracking of a moving object;

FIG. 5 is a schematic diagram illustrating a motion state of the camera module shown in FIG. 3 during tracking of a further moving object;

FIG. 6 is a schematic diagram illustrating an anti-shake process of the camera module shown in FIG. 3 during still scene shooting;

FIG. 7 is a schematic diagram illustrating another anti-shake process of the camera module shown in FIG. 3 during still scene shooting;

FIG. 8 is a diagram illustrating an assembly of the optical path turning element and the driving motor in the camera module shown in FIG. 3;

FIG. 9 is an exploded view of the assembled structure shown in FIG. 8;

FIG. 10 is an exploded view of the drive motor according to the assembled configuration of FIG. 8;

FIG. 11 is an exploded schematic view of the first carrier and the second carrier in the drive motor according to FIG. 10;

FIG. 12 is a schematic view of a telescopic assembly in the drive motor according to FIG. 10;

FIG. 13 is an exploded view of the telescoping assembly according to FIG. 12;

FIG. 14 is an exploded view from another perspective of the telescoping assembly shown in FIG. 13;

FIG. 15 is a schematic view of the relative positional relationship of the telescoping assembly, the first carrier and the support plate in the drive motor of FIG. 10;

FIG. 16 is a schematic view of the relative positional relationship of the slider, follower and resilient member in the retraction assembly shown in FIG. 13;

FIG. 17 is a schematic cross-sectional view of the telescoping assembly shown in FIG. 12, taken along line A-A;

FIG. 18 is an enlarged view of a circled portion at B according to FIG. 17;

FIG. 19 is an enlarged view of a circled portion at C according to FIG. 17;

FIG. 20 is a schematic view of the deformation of the resilient deformation portion when the retraction assembly shown in FIG. 19 is switched between an unlocked state and a braked state;

FIG. 21 is a schematic view illustrating deformation of an elastically deformable portion when a telescopic assembly according to another embodiment of the present application is switched between an unlocked state and a braked state;

FIG. 22 is an enlarged view of the encircled portion shown in FIG. 17 in accordance with D;

FIG. 23 is a schematic illustration of the engagement of the slider, mount and first drive structure in the telescoping assembly of FIG. 14;

FIG. 24 is a schematic view of the telescopic assembly mount, slider, first drive structure and second drive structure of further embodiments of the present application;

FIG. 25 is a perspective view of a telescoping assembly in accordance with still other embodiments of the present application;

FIG. 26 is an exploded view of the telescoping assembly of FIG. 25;

FIG. 27 is an exploded view of the mount, slider and spring according to FIG. 26;

FIG. 28 is a schematic view of an assembly of the mount, slider and spring according to FIG. 26;

FIG. 29 is a schematic view of a telescopic assembly according to other embodiments of the present application;

FIG. 30 is an exploded view of the telescoping assembly according to FIG. 29;

FIG. 31 is a schematic view of the connection of the slider to the first drive structure shown in FIG. 30;

FIG. 32 is a schematic cross-sectional view of the telescoping assembly shown in FIG. 29, taken along line G-G;

Fig. 33 is a schematic view illustrating deformation of an elastic deformation portion when a telescopic assembly according to still other embodiments of the present application is switched between an unlocked state and a braked state.

Detailed Description

In embodiments of the present application, the terms "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of embodiments of the present application, the term "and/or" refers to and encompasses any and all possible combinations of one or more of the associated listed items. The term "and/or" is an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist together, and B exists alone. In the present application, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the description of embodiments of the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and for example, "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium.

In the description of embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

As used herein, "parallel", "perpendicular", "equal" includes the stated case as well as the case that approximates the stated case, the range of which is within an acceptable deviation range as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, "parallel" includes absolute parallel and approximately parallel, where the acceptable deviation range for approximately parallel may be, for example, within ±10° of deviation; "vertical" includes absolute vertical and near vertical, where the acceptable deviation range for near vertical may also be within + -10 deg., for example. "equal" includes absolute equal and approximately equal, where the difference between the two, which may be equal, for example, is less than or equal to 5% of either of them within an acceptable deviation of approximately equal.

The application provides electronic equipment, which is one type of electronic equipment with a shooting function. In particular, the electronic device may be a portable electronic device or other suitable electronic device. For example, the electronic device may be a cell phone, a large screen device, a camera, a monitor, a tablet (tablet personal computer), a notebook, a vehicle device, a wearable device, augmented reality (augmented reality, AR) glasses, AR helmets, virtual Reality (VR) glasses, VR helmets, or the like.

Referring to fig. 1 and fig. 2, fig. 1 is a perspective view of an electronic device 100 according to some embodiments of the present application, and fig. 2 is a schematic diagram of an exploded structure of the electronic device 100 shown in fig. 1. In this embodiment, the electronic device 100 is a mobile phone. Specifically, the electronic device 100 includes a screen 10, a back case 20, a camera module 30, a first circuit board 40, and a camera trim cover 50.

It will be appreciated that fig. 1 and 2 schematically illustrate some of the components included in the electronic device 100, and that the actual shape, actual size, actual location, and actual configuration of these components are not limited by fig. 1 and 2. In other examples, the electronic device 100 may not include the screen 10 and the camera trim cover 50.

The electronic apparatus 100 is substantially flat, and based on this, an XYZ coordinate system is established to specifically define a thickness direction of the electronic apparatus 100 as a Z-axis direction for convenience of description of embodiments hereinafter. The directions perpendicular to the Z axis are an X-axis direction and a Y-axis direction, respectively, and the X-axis direction and the Y-axis direction are perpendicular. In the specific example shown in fig. 1 and 2, the width direction of the electronic apparatus 100 is the X-axis direction, and the length direction of the electronic apparatus 100 is the Y-axis direction. It is to be understood that the coordinate system of the electronic device 100 may be flexibly set according to actual needs, which is not specifically limited herein.

The screen 10 is used to display images, videos, and the like. The screen 10 includes a light transmissive cover plate 101 and a display screen 102. The light-transmitting cover plate 101 is laminated with the display screen 102. The light-transmitting cover plate 101 is mainly used for protecting the display screen 102 and preventing dust. The material of the transparent cover plate 101 includes, but is not limited to, glass. The display 102 may be a flexible display or a rigid display. For example, the display 102 may be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, or a liquid crystal display (liquid crystal display, LCD).

The back shell 20 is used to protect the internal electronics of the electronic device 100. The back shell 20 includes a back cover 201 and a rim 202. The back cover 201 is located on one side of the display screen 102 far away from the transparent cover plate 101, and is stacked with the transparent cover plate 101 and the display screen 102. The material of the back cover 201 includes, but is not limited to, glass, metal, ceramic, or plastic. The frame 202 is located between the back cover 201 and the transparent cover plate 101. The material of the frame 202 includes, but is not limited to, glass, metal, ceramic, or plastic. The frame 202 is fixed to the back cover 201. Illustratively, the bezel 202 may be fixedly attached to the back cover 201 by adhesive. The frame 202 and the back cover 201 may be integrally formed, i.e. the frame 202 and the back cover 201 are integrally formed. The light-transmitting cover plate 101 is fixed to the rim 202 by gluing. The light-transmitting cover 101, the back cover 201 and the frame 202 enclose a housing of the electronic device 100, which has an inner accommodating space for accommodating the display screen 102 therein.

The first circuit board 40 is located within the back shell 20. Specifically, referring still to fig. 2, back shell 20 further includes a middle plate 203. Middle plate 203 is fixed to the inner surface of rim 202. Illustratively, midplane 203 may be secured to bezel 202 by welding, clamping, bolting, or gluing. Middle plate 203 may also be integrally formed with rim 202. The middle plate 203 serves as a structural "skeleton" of the electronic device 100, and the first circuit board 40 may be fixed to a side surface of the middle plate 203 facing the back cover 201 by screwing, clamping, welding, or the like. In other examples, the middle board 203 may not be provided, and the first circuit board 40 may be fixed to the surface of the display screen 102 facing the back cover 201.

The first circuit board 40 is used for integrating electronic components including, but not limited to, an application processor (application processor, AP), double data rate synchronous dynamic random access memory (DDR), and universal memory (universal flash storage, UFS), controller, and power management chip (PMIC). In some embodiments, the first circuit board 40 is electrically connected to the screen 10, and the first circuit board 40 is used to control the screen 10 to display images or video.

The camera module 30 is used for capturing video or images. The camera module 30 may be used as the rear camera module 30. In other embodiments, the camera module 30 may also be used as the front camera module 30. The present embodiment and the following embodiments are exemplified by using the camera module 30 as the rear camera module 30.

The camera module 30 is accommodated in the back shell 20. Specifically, referring to fig. 2, the camera module 30 may be fixed to a surface of the middle plate 203 facing the back cover 201. In other examples, the camera module 30 may also be fixed to a surface of the first circuit board 40 facing the back cover 201. The light incident surface of the camera module 30 faces the back cover 201. The back cover 201 is provided with a mounting opening 60. The camera decorative cover 50 covers and is fixed to the mounting opening 60. The camera decorative cover 50 is used for protecting the camera module 30. In some embodiments, the camera trim cover 50 protrudes outside the back cover 201. In this way, the camera decorative cover 50 can increase the installation space 616 of the camera module 30 along the Z-axis direction in the electronic device 100. In other embodiments, the camera trim cover 50 may also be flush with the back cover 201 or recessed into the interior receiving space of the electronic device 100. The camera decorative cover 50 is provided with a light transmitting portion 501. The light-transmitting portion 501 allows external light to transmit and is incident on the light-incident surface of the camera module 30.

The camera module 30 is electrically connected to the first circuit board 40, so that the first circuit board 40 receives and processes the electrical signal containing the image information from the camera module 30, so that the first circuit board 40 controls the camera module 30 to work to achieve large angle tracking, ultra-wide angle photographing, optical anti-shake (optical image stabilization, OIS) or auto-focusing (automatic focusing, AF).

The camera modules 30 include, but are not limited to, upright camera modules and periscope camera modules. The specific structure of the camera module 30 will be described below by taking a periscope type camera module as an example.

Referring to fig. 3, fig. 3 is a block diagram illustrating a camera module 30 according to some embodiments of the application. The camera module 30 includes an optical path turning element 301, an optical lens 302, a photosensitive device 303, and a driving motor (not shown in fig. 3).

It will be appreciated that fig. 3 schematically illustrates some components of the camera module 30, the actual shape, actual size, actual location and actual configuration of which are not limited by fig. 3.

The optical path turning element 301, the optical lens 302, and the photosensitive device 303 are arranged along the X-axis direction, so that the occupation height of the camera module 30 in the Z-axis direction can be reduced, which is beneficial to the thinning of the electronic device 100.

The optical path turning element 301 is used to change the transmission path of the light.

Specifically, with continued reference to fig. 3, the optical path turning element 301 may be a triangular prism. The optical path turning element 301 includes a light incident surface S1, a light emergent surface S2, and a reflective surface S3.

In the state shown in fig. 3, the light incident surface S1 is parallel to the XY plane. The light incident surface S1 faces the light transmitting portion 501. The light-emitting surface S2 is parallel to the YZ plane, and the light-emitting surface S2 is perpendicular to the light-entering surface S1. The light reflecting surface S3 is inclined at 45 ° with respect to the light incident surface S1 and the light emitting surface S2.

After entering the electronic device 100 through the light transmitting portion 501, the external light enters the optical path turning element 301 through the light incident surface S1, is further reflected by the light reflecting surface S3, and then exits through the light emitting surface S2, and the transmission path of the light is the L0 path illustrated in fig. 3. Therefore, the light is turned once to form an L-shaped transmission path, so that the light path turning element 301, the optical lens 302 and the photosensitive device 303 can be arranged along the X-axis direction, so as to reduce the occupied height of the camera module 30 in the Z-axis direction, which is beneficial to the thinning of the electronic device 100.

In other embodiments, the light path turning element 301 may also be a plate prism or a mirror disposed obliquely.

The optical lens 302 is used to image a subject.

With continued reference to fig. 3, the optical lens 302 is located on the light-emitting side of the light path turning element 301, and in particular, the optical lens 302 is located on the side facing the light-emitting surface S2.

The optical lens 302 may include a lens barrel (not shown in fig. 3) and an optical lens group (not shown in fig. 3). The lens barrel is used for fixing and protecting the optical lens group. The lens barrel is cylindrical, and the axial direction of the lens barrel extends along the X-axis direction. The optical lens group is installed in the lens cone. The optical lens group comprises at least one optical lens. When the optical lens group includes a plurality of optical lenses, the plurality of optical lenses are sequentially stacked in the axial direction of the lens barrel.

After the light is emitted from the light emitting surface S2, the light can be emitted into the optical lens group in the optical lens 302, so as to image the photographed object. Based on this, the photosensitive device 303 is located on the light-emitting side of the optical lens 302, so that the imaged optical signal is incident on the photosensitive device 303. The photosensitive device 303 is used for sensing the optical signal and converting the optical signal into an electrical signal to be output to the first circuit board 40. Thereby achieving photographing of an image.

With continued reference to fig. 3, the driving motor 304 is used for driving the optical path turning element 301 to rotate, and in particular, the driving motor 304 is used for driving the optical path turning element 301 to rotate around the first axis O1 and the second axis O2, so as to track a moving object or realize optical anti-shake of the electronic device 100. Wherein the first axis O1 may be parallel to the Y axis, the second axis O2 may be parallel to the X axis, and the second axis O2 may be perpendicular to the first axis O1. In other examples, the first axis O1 may also be parallel to the X-axis and the second axis O2 may be parallel to the Y-axis.

The second axis O2 and the first axis O1 may be disposed coplanar, i.e., they have an intersection point, or may be disposed non-coplanar, i.e., they have no intersection point. This embodiment and the following embodiments are described on the basis of the arrangement of the second axis O2 coplanar with the first axis O1, and are not to be construed as a particular limitation of the constitution of the present application.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating a motion state of the camera module 30 shown in fig. 3 during tracking a moving object. In this example, the moving object is athlete one. With respect to the electronic device 100, the athlete is in the process of a continuous jump in the X-axis direction. When the player moves from the A1 position to the A2 position, the driving motor 304 drives the optical path turning element 301 to rotate from the B1 position to the B2 position around the first axis O1, and the optical path is also switched from the L1 path to the L2 path, so as to track the player.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a movement state of the camera module 30 in tracking a further moving object according to fig. 3. In this example, the moving object is athlete two. With respect to electronic device 100, athlete two is in the process of a continuous jump in the Y-axis direction. When the player II moves from the A3 position to the A4 position, the driving motor 304 drives the light path turning element 301 to rotate from the B3 position to the B4 position around the second axis O2, and the light path is also switched from the L3 path to the L4 path, so as to track the player II.

Referring to fig. 6, fig. 6 is a schematic diagram illustrating an anti-shake process of the camera module 30 shown in fig. 3 when shooting a still scene. When the electronic apparatus 100 shakes from the A5 position to the A6 position along the positive direction of the X axis, the driving motor 304 drives the optical path turning element 301 to rotate from the B5 position to the B6 position around the first axis O1. The optical path is switched from the L5 path to the L6 path, so that the anti-shake compensation is realized.

Referring to fig. 7, fig. 7 is a schematic diagram illustrating another anti-shake process of the camera module 30 shown in fig. 3 when shooting a still scene. When the electronic device 100 shakes from the A7 position to the A8 position along the negative direction of the Y axis, the driving motor 304 drives the optical path turning element 301 to rotate from the B7 position to the B8 position around the second axis O2. The optical path is switched from the L7 path to the L8 path, so that the anti-shake compensation is realized.

It can be appreciated that, because the moving path of the moving object and the position of the moving object relative to the electronic device 100 are different, and/or the shake path of the electronic device 100 relative to the stationary object and the position of the electronic device 100 relative to the stationary object are different, in most tracking scenarios and optical anti-shake scenarios, the driving motor 304 drives the optical path turning element 301 to rotate around the first axis O1, and simultaneously drives the optical path turning element 301 to rotate around the second axis O2 in combination.

With respect to the state shown in fig. 3, the maximum rotation angle of the optical path turning element 301 to the left or right about the first axis O1 is a first maximum rotation angle, and the maximum rotation angle of the optical path turning element 301 to the front or rear about the second axis O2 is a second maximum rotation angle. For example, the first and second maximum rotation angles may be greater than or equal to 5 ° and less than or equal to 30 °. Specifically, the first and second maximum rotation angles may be 5 °, 6 °, 7 °, 10 °, 20 °, 25 °, or 30 °.

The following description will be mainly made of the drive motor 304.

Referring to fig. 8 and 9, fig. 8 is an assembly diagram of the optical path turning element 301 and the driving motor 304 in the camera module 30 shown in fig. 3. Fig. 9 is an exploded view of the assembled structure according to fig. 8. In this example, in the optical path turning element 301, the optical path turning element 301 includes a first side surface S4 and a second side surface S5 in addition to the light incident surface S1, the light emitting surface S2, and the light reflecting surface S3. The first side S4 and the second side S5 are disposed opposite to each other in the Y-axis direction. The first side surface S4 is connected to one end of the light incident surface S1 in the Y-axis direction, one end of the light exit surface S2 in the Y-axis direction, and one end of the light reflecting surface S3 in the Y-axis direction, respectively. The second side surface S5 is connected to the other end of the light incident surface S1 in the Y-axis direction, the other end of the light exit surface S2 in the Y-axis direction, and the other end of the light reflecting surface S3 in the Y-axis direction, respectively.

On the basis, in order to prevent sharp corners from occurring on the surface of the optical path turning element 301, the optical path turning element 301 is prevented from scratching hands or other equipment in the production, transportation, packaging or installation process, and the joint of the light incident surface S1, the light emergent surface S2 and the first side surface S4 is provided with a chamfer S7. The joint of the light incident surface S1, the light emergent surface S2 and the second side surface S5 is provided with a chamfer angle S8. The joint of the light incident surface S1, the second side surface S5 and the light reflecting surface S3 is provided with a chamfer angle S9. The joint of the light incident surface S1, the first side surface S4 and the light reflecting surface S3 is provided with a chamfer angle S10.

Referring to fig. 10, fig. 10 is an exploded view of the drive motor 304 in the assembled configuration according to fig. 8. The driving motor 304 includes a support base 1, a housing 2, a first carrier 3, a first driving assembly (not shown), a second driving assembly (not shown), and a second circuit board 4.

It will be appreciated that fig. 10 schematically illustrates some of the components included in the drive motor 304, the actual shape, actual size, actual position, and actual configuration of which are not limited by fig. 10. In other examples, the drive motor 304 may not include the housing 2.

The support base 1 serves as a support "skeleton" for the drive motor 304 for supporting and fixing the first carrier 3, the first drive assembly, the second circuit board 4 and the like. In this way, the driving motor 304 can be conveniently connected with other structures inside the electronic device 100 by means of the supporting base 1. For example, the drive motor 304 is connected to the intermediate plate 203 described above by means of the support base 1.

The material of the support base 1 includes, but is not limited to, metal or plastic. For example, in order to improve the structural strength of the support base 1, the material of the support base 1 may be metal.

With continued reference to fig. 10, the support base 1 has an accommodating space P1, and the accommodating space P1 may be used to accommodate the first carrier 3 and the aforementioned structures such as the optical path turning element 301. The accommodation space P1 has a first escape opening 16 and a second escape opening 17. The first avoidance opening 16 is located at one end of the support base 1 facing the photosensitive device 303, so that the first avoidance opening 16 may correspond to the light emitting surface S2. The second avoidance opening 17 is located at one end of the support seat 1 facing the light-transmitting portion 501, so that the second avoidance opening 17 may correspond to the light-incident surface S1. So that the light rays are incident into the light path turning element 301, reflected by the reflecting surface S3 of the light path turning element 301, and then emitted out of the driving motor 304 through the light emitting surface S2.

For example, as shown in fig. 10, the first escape opening 16 and the second escape opening 17 may communicate. In this way, the first carrier 3, the optical path turning element 301, and the like can be mounted in the accommodating space P1 by means of a large mounting opening formed by the communication between the first escape opening 16 and the second escape opening 17. Of course, it is understood that in other examples, the first relief opening 16 and the second relief opening 17 may not be in communication.

Specifically, with continued reference to fig. 10, the support base 1 includes a first side wall 11, a second side wall 12, a third side wall 13, and a support plate 19. The first side wall 11 and the second side wall 12 are arranged at intervals along the Y-axis direction and are arranged opposite to each other. The first escape opening 16 is formed between one end of the first side wall 11 in the X-axis direction and one end of the second side wall 12 in the X-axis direction. The third side wall 13 is connected between the other end of the first side wall 11 in the X-axis direction and the other end of the second side wall 12 in the X-axis direction. The support plate 19 is at the end of the support seat 1 opposite the second relief opening 17. The support plate 19 is connected to the first, second and third side walls 11, 12 and 13, respectively. In this way, the accommodation space P1 can be formed, and the structure is simple and the structural strength is high.

Of course, it is understood that the formation of the accommodating space P1 is not limited thereto, and in other examples, the support base 1 may not include the support plate 19, but may be surrounded by the first, second and third side walls 11, 12 and 13. In addition, it is also understood that the supporting seat 1 may not be provided with the accommodation space P1. When the support base 1 is not provided with the accommodation space P1, both the first escape opening 16 and the second escape opening 17 are canceled. As long as the first carrier 3 and the aforementioned optical path turning element 301 and the like can be easily mounted to the support base 1.

The shell 2 covers the supporting seat 1 to be used for protecting the structure supported on the supporting seat 1. Illustratively, an end of the outer circumferential surface of the support base 1 remote from the second relief opening 17 has a positioning step 14. The housing 2 is covered on the supporting seat 1 and is positioned on the positioning step 14. Therefore, by arranging the positioning step 14, the positioning step 14 is beneficial to playing a role in positioning the installation of the shell 2, and the installation efficiency is improved.

In some examples, the housing 2 is detachably connected to the support base 1. In this way, the casing 2 and the supporting seat 1 can be conveniently detached, so that the structural member supported on the supporting seat 1 can be conveniently maintained and replaced. For example, the housing 2 and the support base 1 may be connected by a clamping or screw. Of course, the present application is not limited thereto, and the housing 2 and the supporting seat 1 may be non-detachably connected, for example, welded between the housing 2 and the supporting seat 1.

The material of the housing 2 includes, but is not limited to, metal, plastic, and combinations thereof. For example, in order to improve the protection effect of the housing 2, the material of the housing 2 may be metal. In other examples, the material of the housing 2 may be selected to be plastic in order to reduce the weight of the drive motor 304.

Specifically, the housing 2 has a first light-passing port 21 and a second light-passing port 22. The first light through opening 21 is located at one end of the housing 2 facing the photosensitive device 303, so that the first light through opening 21, the first avoiding opening 16 and the light emitting surface S2 correspond to each other, so that light is emitted from the driving motor 304 through the light emitting surface S2. The second light-transmitting port 22 is located at one end of the housing 2 facing the light-transmitting portion 501, so that the second light-transmitting port 22, the second avoiding opening 17 and the light-incident surface S1 are opposite to each other, so that light is incident on the light-incident surface S1.

Illustratively, as shown in fig. 10, the first light-passing port 21 and the second light-passing port 22 may communicate. Thus, the opening area of the first light through opening 21 is set to be larger than or equal to the area of the first avoidance opening 16 so that the orthographic projection of the first avoidance opening 16 on the first light through opening 21 is located in the first light through opening 21 or coincides with the first light through opening 21, and the opening area of the second light through opening 22 is set to be larger than or equal to the opening area of the second avoidance opening 17 so that the orthographic projection of the second avoidance opening 17 on the second light through opening 22 is located in the second light through opening 22 or coincides with the second light through opening 22, so that light transmission is facilitated. Of course, it is understood that in other examples, the first light port 21 and the second light port 22 may not be in communication.

The first carrier 3 is disposed in the accommodation space P1 of the support base 1 and is rotatable with respect to the support base 1 about a first axis O1 and a second axis O2.

The first carrier 3 is used for carrying the optical path turning element 301. Illustratively, the material of the first carrier 3 includes, but is not limited to, metal, plastic, and combinations thereof. For example, in order to improve the structural strength of the first carrier 3, the material of the first carrier 3 may be metal. In other examples, the material of the first carrier 3 may be plastic in order to reduce the weight of the driving motor 304.

In order to facilitate the support and protection of the light path turning element 301, the first carrier 3 has a receiving space P3. The optical path turning element 301 is accommodated in the accommodating space P3 (refer to fig. 8).

On the basis of this, in order to facilitate the light to enter the light path turning element 301 and to exit from the light path turning element 301, the accommodating space P3 has a first opening 34 and a second opening 35. The first opening 34 is located at one end of the first carrier 3 facing the photosensitive device 303, so that the first opening 34 may correspond to the light emitting surface S2 and the first avoiding opening 16. The second opening 35 is at an end of the first carrier 3 facing the light-transmitting portion 501, so that the second opening 35 may correspond to the light-incident surface S1 and the second escape opening 17. Thus, the light beam can be conveniently injected into the light path turning element 301, reflected by the reflecting surface S3 of the light path turning element 301, and then emitted out of the driving motor 304 through the light emitting surface S2.

In order to facilitate the supporting of the optical path turning element 301 by the first carrier 3, please continue to refer to fig. 10, the first carrier 3 has a supporting surface a, the optical path turning element 301 is supported on the supporting surface a, and the reflective surface S3 of the optical path turning element 301 is opposite to the supporting surface a. Illustratively, the light reflecting surface S3 is disposed parallel to the support surface a.

In order to form the above-mentioned accommodation space P3, the first carrier 3 has a fourth side wall 31, a fifth side wall 32 and a sixth side wall 33 for reliable fixation and support of the light path turning element 301. Wherein the fourth side wall 31 and the fifth side wall 32 are disposed opposite to each other in the Y-axis direction. The sixth side wall 33 is connected between the fourth side wall 31 and the fifth side wall 32. The sixth side wall 33 corresponds to the third side wall 13 of the support seat 1. The fourth side wall 31 corresponds to the first side wall 11 of the support base 1. The fifth side wall 32 corresponds to the second side wall 12 of the support base 1. The support surface a is a surface of the sixth sidewall 33 facing the first opening 34.

By such design, the fourth side wall 31, the fifth side wall 32 and the sixth side wall 33 can form the accommodating space P3 for accommodating the optical path turning element 301, and the structure is simple, so that the optical path turning element 301 is protected from multiple directions on the premise of not influencing the change of the optical path turning element 301 to light, and the service life of the optical path turning element 301 is prolonged.

In order to enable the first carrier 3 to rotate with respect to the support seat 1 about a first axis O1 and a second axis O2. With continued reference to fig. 10, the drive motor 304 further includes a second carrier 7. The second carrier 7 is disposed in the accommodation space P1 of the support base 1. The second carrier 7 is for carrying the first carrier 3 and the optical path turning element 301.

Specifically, the first carrier 3 is rotatably connected to the housing space P1 of the support base 1 about the first axis O1 by means of the second carrier 7. The first carrier 3 is rotatably connected to the second carrier 7 about a second axis O2. That is, the second carrier 7 is rotatably connected to the accommodating space P1 of the supporting seat 1 around the first axis O1, and the first carrier 3 is rotatably connected to the second carrier 7 around the second axis O2.

In order to facilitate the mounting of the second carrier 7 to the first carrier 3, the second carrier 7 has a carrying space P2. Specifically, the carrying space P2 has a first escape port 78 and a second escape port 79. The first avoidance port 78 is located at one end of the second carrier 7 facing the photosensitive device 303, so that the first avoidance port 78 may correspond to the light emitting surface S2. The second avoidance port 79 is located at an end of the second carrier 7 facing the light-transmitting portion 501, so that the second avoidance port 79 may correspond to the light-incident surface S1. Thus, the light beam can be conveniently injected into the light path turning element 301, reflected by the reflecting surface S3 of the light path turning element 301, and then emitted out of the driving motor 304 through the light emitting surface S2.

In order to facilitate a reliable fixing and support of the second carrier 7 to the first carrier 3 and the light path turning element 301. With continued reference to fig. 10, the second carrier 7 includes a seventh sidewall 71, an eighth sidewall 72, and a ninth sidewall 73. Wherein the seventh sidewall 71 and the eighth sidewall 72 are oppositely disposed in the Y-axis direction. The ninth side wall 73 is connected between the seventh side wall 71 and the eighth side wall 72. The ninth side wall 73 is located between the third side wall 13 of the support seat 1 and the sixth side wall 33 of the first carrier 3. The seventh side wall 71 is located between the first side wall 11 of the support seat 1 and the fourth side wall 31 of the first carrier 3. The eighth side wall 72 is located between the second side wall 12 of the support seat 1 and the fifth side wall 32 of the first carrier 3. So designed, the seventh, eighth and ninth side walls 71, 72 and 73 may form a carrying space P2 for accommodating the first carrier 3, and the structure is simple.

In order to realize the rotational connection between the second carrier 7 and the support base 1 about the first axis O1, please continue to refer to fig. 10, the second carrier 7 is provided with a first rotating shaft 74, and the support base 1 is provided with a first shaft hole 15. In the specific example shown in fig. 10, the first shaft hole 15 is provided on each of the first and second side walls 11 and 12 of the support base 1. The seventh side wall 71 and the eighth side wall 72 of the second carrier 7 are each provided with a first rotation shaft 74, and one first rotation shaft 74 is rotatably fitted in one first shaft hole 15. In this way, by means of the cooperation between the first rotating shaft 74 and the first shaft hole 15, the second carrier 7 is rotatably connected to the supporting seat 1 around the first axis O1, which is simple in structure.

Specifically, with continued reference to fig. 10, the first shaft 74 has a semicircular cross section, a small semicircular cross section, or a large semicircular cross section, and the first shaft hole 15 has a semicircular cross section, a small semicircular cross section, or a large semicircular cross section. The circle center line corresponding to the first rotating shaft 74 and the circle center line corresponding to the first shaft hole 15 are all collinear with the first axis O1. In this way, the first rotating shaft 74 and the first shaft hole 15 with semicircular, small semicircular, or large semicircular occupy a smaller volume, which is beneficial to saving the volume of the driving motor 304. In other examples, the first shaft 74 and the first shaft bore 15 are both circular. It will be appreciated that to effect relative rotation of the first shaft 74 and the first shaft bore 15, the arc length of the cross section of the first shaft 74 is less than the arc length of the cross section of the first shaft bore 15.

On the basis of this, a plurality of first balls 8 are also provided between the circular arc surface on the outer peripheral surface of the first rotating shaft 74 and the circular arc surface on the inner peripheral surface of the first shaft hole 15, for example. The plurality of first balls 8 are disposed at intervals in the circumferential direction of the first shaft hole 15. Thereby, rolling friction can be realized between the first rotating shaft 74 and the first shaft hole 15 by means of the first ball 8, the friction force of the rolling friction is small, and the abrasion is small. In other examples, the first balls 8 may not be provided between the first shaft 74 and the first shaft hole 15. The number of first balls 8 may be plural, for example, two, three, four, five or six, for example. The material of the first ball 8 includes, but is not limited to, metal.

On this basis, in order to facilitate the limitation of the first ball 8, a first arc groove 741 is provided on the arc surface on the outer peripheral surface of the first rotating shaft 74. The circular centerline corresponding to the extension path of the first arcuate slot 76 is collinear with the first axis O1. At least a part of the first ball 8 is located in the first circular arc groove 741. The second circular arc groove 151 is provided on the circular arc surface on the inner peripheral surface of the first shaft hole 15. The first arc groove 741 and the second arc groove 151 face each other, and at least a part of the first ball 8 is positioned in the second arc groove 151. In other examples, the arcuate groove may be provided only in one of the arcuate surface of the first shaft 74 and the arcuate surface of the first rotating hole.

It should be noted that the first rotating shaft 74 may also be disposed on the supporting seat 1, and the first shaft hole 15 is disposed on the second carrier 7, which is not limited in particular by the present application.

In order to achieve a rotational connection of the first carrier 3 to the second carrier 7 about the second axis O2. Specifically, referring to fig. 11, fig. 11 is an exploded view of the first carrier 3 and the second carrier 7 in the driving motor 304 shown in fig. 10. The first carrier 3 is provided with a second rotation shaft 36. The ninth sidewall 73 of the second carrier 7 is provided with a second shaft hole 75, and the second rotating shaft 36 is rotatably fitted in the second shaft hole 75.

Illustratively, the second shaft 36 is formed in a cylindrical shape and the second shaft hole 75 is formed in a circular hole.

On the basis of this, a second ball 9 is provided, for example, between the first carrier 3 and the ninth side wall 73. Rolling friction is realized between the first carrier 3 and the ninth side wall 73 by means of the second balls 9, and the friction force of the rolling friction is small and the abrasion is small.

The number of the second balls 9 may be one or a plurality. In some embodiments, with continued reference to fig. 11, the number of second balls 9 is two. The two second balls 9 are disposed on opposite sides of the second rotating shaft 36, and are symmetrically disposed about the second rotating shaft 36. In this way, the support stability of the first carrier 3 can be ensured, preventing the first carrier 3 from being skewed or jammed. In other embodiments, the number of the second balls 9 may be three or more, and the second balls 9 are uniformly disposed around the circumference of the second rotating shaft 36 to further improve the support stability of the first carrier 3.

With continued reference to fig. 11, a surface of the ninth sidewall 73 facing the first carrier 3 is provided with a first arc-shaped slot 76, and a center line corresponding to an extension path of the first arc-shaped slot 76 is collinear with the second axis O2. At least part of the second ball 9 is located in the first arcuate slot 76. In this way, the first arc-shaped groove 76 can limit the second ball 9, and prevent the second ball 9 from falling out.

On the basis of which the surface of the first carrier 3 facing the ninth side wall 73 is provided with a second arc-shaped groove (not shown in the figures) which is opposite to the first arc-shaped groove 76. The center line corresponding to the extension path of the second arc-shaped groove is collinear with the second axis O2. On the basis of which at least part of the second balls 9 are located in the second arcuate groove. In this way, the second ball 9 can be further limited by the second arc groove, and the second ball 9 is prevented from falling out. It will be appreciated that an arcuate slot for retaining the second balls 9 may also be provided in one of the first carrier 3 and the ninth side wall 73.

It should be noted that the first carrier 3 may also be provided with a second shaft hole 75, and the second carrier 7 may be provided with the second rotating shaft 36. The present application is not particularly limited thereto.

As is clear from the above discussion, by the rotation of the second carrier 7 about the first axis O1 with respect to the support base 1 and the rotation of the first carrier 3 about the second axis O2 with respect to the second carrier 7, the first carrier 3 is enabled to rotate about the first axis O1 and the second axis O2 with respect to the support base 1, thereby rotating the optical path turning element 301 about the first axis O1 and the second axis O2. The compactness of this structure is better, and first carrier 3 and second carrier 7 can independently move respectively, are favorable to promoting motion control precision. It will be understood, of course, that in other examples, the second carrier 7 may not be provided, and the first carrier 3 may be connected to the support base 1 by means of a resilient structure. When the first carrier 3 rotates with respect to the support seat 1 about the first axis O1 and/or the second axis O2, the elastic structure may be forced to elastically deform and accumulate elastic force. When the driving force of the first carrier 3 moving relative to the supporting seat 1 disappears, the elastic force accumulated by the elastic structure can drive the first carrier 3 to reset. The structure is simple and the cost is low.

The first driving component is arranged between the supporting seat 1 and the second carrier 7, and is used for driving the second carrier 7 to rotate around the first axis O1 relative to the supporting seat 1, so that the purpose that the first driving component drives the first carrier 3 to rotate around the first axis O1 relative to the supporting seat 1 is achieved. Illustratively, the first drive component may be a shape memory alloy (shape memory alloys, SMA). Still further exemplary, the first drive assembly may also be a combination of a coil and a magnet. The present application is not particularly limited thereto.

The second driving component is arranged between the second carrier 7 and the first carrier 3, and is used for driving the first carrier 3 to rotate around the second axis O2 relative to the second carrier 7, so that the purpose that the second driving component drives the first carrier 3 to rotate around the second axis O2 relative to the supporting seat 1 is achieved. Illustratively, the second drive component may be an SMA alloy. Further, the second driving assembly may be a combination of a coil and a magnet, and the present application is not particularly limited. The specific structure of the first driving assembly and the second driving assembly is well known to those skilled in the art, and will not be described in detail herein.

Referring back to fig. 10, the second circuit board 4 is disposed in the accommodating space P1 of the supporting seat 1. Specifically, the second circuit board 4 is fixed to the support plate 19. The first drive assembly and the second drive assembly are both electrically connected to the second circuit board 4. The second circuit board 4 is used for electrical connection with the first circuit board 40 in the foregoing. In this way, the electrical connection of the drive motor 304 with the first circuit board 40 can be achieved by means of the second circuit board 4, in order to facilitate the transmission of signals.

As can be seen from the above analysis, the driving motor 304 is utilized to drive the optical path turning element 301 to rotate around the first axis O1 and/or the second axis O2, so as to track the moving object and prevent the electronic device 100 from shaking optically. However, it will be appreciated that, for the moving first carrier 3, when the driving force for the movement of the first carrier 3 relative to the support base 1 is removed, the first carrier 3 continues to rotate in the original direction under the action of inertia until the rotation speed stops more and more slowly. This results in difficulty in stopping and braking the first carrier 3 in time, and poor reliability of the entire camera module 30 for tracking a moving object and an optical anti-shake effect of the electronic apparatus 100.

Based on this, the above technical problems are solved. With continued reference to fig. 9 and 10, the drive motor 304 of the present application further includes a telescoping assembly 6. The telescopic assembly 6 is located between the first carrier 3 and the support 1.

On the basis, as shown in fig. 10, when the second carrier 7 is disposed in the driving motor 304, in order to prevent the second carrier 7 from interfering with the fixing between the telescopic assembly 6 and the supporting seat 1, an end of the second carrier 7 facing the telescopic assembly 6 has a yielding opening 77. In the specific example shown in fig. 10, the telescopic assembly 6 is located between the support plate 19 and the first carrier 3, the relief opening 77 being provided at the end of the second carrier 7 facing the support plate 19. In this way, the telescopic assembly 6 can be conveniently matched with the first carrier 3.

The specific structure of the telescopic assembly 6 and the working principle of the telescopic assembly 6 will be described below.

Referring to fig. 12 and 13, fig. 12 is a schematic structural view of the telescopic assembly 6 in the driving motor 304 shown in fig. 10, and fig. 13 is a schematic exploded structural view of the telescopic assembly 6 shown in fig. 12. The telescopic assembly 6 comprises a mounting seat 61, a follower 62, an elastic member 63 and a slider 64.

The mounting 61 serves as a supporting "backbone" for the telescoping assembly 6 for supporting the follower 62, spring 63, slide 64, and like structural members. Illustratively, the material of the mount 61 includes, but is not limited to, metal and plastic. In order to improve the supporting reliability of the mounting base 61, the mounting base 61 is made of metal.

The telescopic assembly 6 is fixed to the support base 1 by means of a mounting base 61. Specifically, the mount 61 is fixed to the surface of the support plate 19 facing the first carrier 3 (see fig. 9). In other examples, the mount 61 may be fixed to other positions of the support base 1, for example, both ends of the mount 61 in the Y-axis direction are fixed to the first side wall 11 and the second side wall 12, respectively. Alternatively, in other examples, the mounting seat 61 may also be fixed to the first side wall 11, the second side wall 12, or the third side wall 13. As long as the telescopic assembly 6 is secured to the support base 1. In the following description, the mounting seat 61 is described as being fixed to the support plate 19.

The connection between the mounting seat 61 and the supporting seat 1 includes, but is not limited to, gluing, clamping, welding, screw connection, etc. On this basis, the mounting seat 61 and the supporting seat 1 are detachably connected, for example, by clamping or screwing. Thereby, maintenance and replacement of the telescopic assembly 6 can be facilitated.

With continued reference to fig. 13, the elastic member 63 has a fixing portion 631 and an elastic deformation portion 632.

The fixing portion 631 is fixed to the mount 61. Exemplary means of connection between the securing portion 631 and the mount 61 include, but are not limited to, clamping, welding, or screw connection.

The follower 62 is fixed to the elastic deformation portion 632. Exemplary means of connection between the follower 62 and the resilient deformation 632 include, but are not limited to, a snap fit, a weld, a screw connection, or the like. The elastic deformation portion 632 applies an elastic force directed toward the first carrier 3 to the follower 62. The elastic deformation portion 632 is provided with a first engagement portion 68.

The slider 64 is slidably coupled to the mount 61 along a first direction (e.g., the Y-axis direction).

With reference to fig. 14, fig. 14 is a schematic view of an exploded structure according to another view of the telescopic assembly 6 shown in fig. 13. The slider 64 is provided with a second engaging portion 69. The second engaging portion 69 engages with the first engaging portion 68 when the slider 64 slides relative to the mounting base 61 along the first direction, so as to apply a first force F along the second direction to the elastically deforming portion 632, where the first force can cause the elastically deforming portion 632 to elastically deform along the second direction (e.g., the Z-axis direction), and the elastically deforming portion 632 elastically deforms along the second direction, so as to drive the follower 62 to move along the second direction.

Specifically, the second engagement portion 69 may apply a first force F along the Z-axis direction and directed toward the elastic deformation portion 632 to the first engagement portion 68. When the slider 64 slides back and forth in the first direction relative to the mounting base 61, the magnitude of the first force F can be changed, so that the elastic deformation portion 632 is deformed in the Z-axis direction by the first force F to a different extent, and different magnitudes of elastic forces are accumulated. The different degrees of elastic deformation of the elastic deformation portion 632 can drive the follower 62 to reciprocate in the Z direction. In turn, the reciprocating movement of the follower 62 causes the retraction assembly 6 to have a braking state and an unlocking state, and enables the retraction assembly 6 to switch between the braking state and the unlocking state.

Specifically, referring to fig. 15, fig. 15 is a schematic diagram showing the relative positional relationship among the telescopic assembly 6, the first carrier 3 and the support plate 19 in the driving motor 304 shown in fig. 10. As illustrated in fig. 15 (a), when the follower 62 moves toward the direction approaching the first carrier 3 to be in abutting engagement with the first carrier 3, the telescopic assembly 6 is in a braked state. In this way, the friction force generated by the relative motion between the follower 62 and the first carrier 3 can be used to limit the rotation of the first carrier 3, so that when the driving force applied by the driving motor 304 to the optical path turning element 301 and rotating around the first axis O1 and/or the second axis O2 is removed, the braking can be stopped timely, so as to achieve the purposes of precise tracking and precise anti-shake to the moving object.

As illustrated in fig. 15 (b), when the follower 62 moves away from the first carrier 3 to disengage from the first carrier 3, that is, with a gap h between the telescopic assembly 6 and the first carrier 3, the telescopic assembly 6 is in the unlocked state. In this way, the telescopic assembly 6 is disengaged from the first carrier 3, so that there is no relative friction force between the telescopic assembly 6 and the first carrier 3, and thus, in the process that the driving motor 304 applies the driving force rotating around the first axis O1 and/or the second axis O2 to the optical path turning element 301 to achieve the purposes of tracking and anti-shake of the moving object, interference generated by the telescopic assembly 6 on the rotation of the first carrier 3 can be prevented, and reliable driving of the optical path turning element 301 by the driving motor 304 is facilitated.

In addition, when the sliding member 64 slides relative to the mounting seat 61, the second matching portion 69 and the first matching portion 68 are matched to force the elastic deformation portion 632 to deform to different degrees, and the deformation of the elastic deformation portion 632 to different degrees can drive the driven member 62 to reciprocate in the Z direction, so that the structure is simple and the reliability is high. Further, the elastic deformation portion 632 can apply an elastic force directed to the first carrier 3 to the follower 62, and in the braking state, the pressing force between the follower 62 and the first carrier 3 can be increased, thereby increasing the friction force, and enabling rapid braking.

In order to improve the elastic deformability of the elastic deformation portion 632, please continue to refer to fig. 13 and 14, the elastic deformation portion 632 includes a support portion 6321 and an elastic arm 6322. The support portion 6321 and the fixing portion 631 are arranged at intervals in a plane perpendicular to the Z direction (i.e., XY plane). The elastic arm 6322 is connected between the support portion 6321 and the fixing portion 631. The follower 62 is provided on the support portion 6321. For the elastic deformation portion 632, the elastic arm 6322 is capable of elastically bending deformation so that the elastic arm 6322 applies an elastic force directed toward the first carrier 3 to the follower 62 along the Z-axis direction. Since the elastic arm 6322 is connected between the supporting portion 6321 and the fixing portion 631, the position where the supporting portion 6321 is located has the largest deformation in the Z-axis direction, and this design is beneficial to further reducing the size of the whole telescopic assembly 6 in the Z-axis direction on the basis of satisfying the moving displacement of the follower 62 in the Z-axis direction to ensure the switching between the unlocked state and the braked state, thereby being beneficial to reducing the size of the driving motor 304 in the Z-axis direction, and further being beneficial to realizing the slim design of the electronic device 100.

Specifically, with continued reference to fig. 13 and 14, the elastic arm 6322 and the fixing portion 631 are two. And the two elastic arms 6322 are in one-to-one correspondence with the two fixing portions 631. Two elastic arms 6322 are symmetrically disposed on both sides of the support portion 6321 in the Y-axis direction, each elastic arm 6322 being connected between the corresponding fixing portion 631 and the support portion 6321.

Thus, the reliability of the fixation between the elastic member 63 and the mount 61 is advantageously improved. And the whole supporting part 6321 is positioned in the middle area of the elastic deformation part 632, the deformation amount of the position of the supporting part 6321 in the Z-axis direction is maximum, the structure of the whole elastic piece 63 is more symmetrical, and the deformation reliability of the elastic deformation part 632 in the Z-axis direction is higher.

Specifically, the elastic deformation portion 632 arches toward the side where the follower 62 is located. So that the elastic deformation portion 632 applies an elastic force directed toward the first carrier 3 to the follower 62 along the Z-axis direction. For example, the supporting portion 6321 and the follower 62 are located at a side of the line between the two fixing portions 631 adjacent to the first carrier 3, and the supporting portion 6321 is spaced apart from the supporting plate 19.

The elastic member 63 is an exemplary plate spring in a sheet shape. The elastic element 63 can be preloaded onto the mounting 61 by means of the two fixing portions 631 and the elastic element 63 is caused to arch towards the first carrier 3.

It should be noted that the "side of the follower 62" in the arch of the elastically deforming portion 632 toward the side of the follower 62 means the side of the follower 62 where the portion of the first carrier 3 is engaged (i.e., the braking portion 621 in the afternoon).

Of course, the present application is not limited thereto, and in other examples, the fixing portion 631 and the elastic arm 6322 may be one. The present application is not particularly limited.

On this basis, the first engaging portion 68 is provided at an end of the supporting portion 6321 where the follower 62 is located. Specifically, the first engaging portion 68 and the follower 62 are provided simultaneously on the same side surface of the supporting portion 6321 in the Z-direction. Accordingly, since the elastic arm 6322 is connected between the supporting portion 6321 and the fixing portion 631, the supporting portion 6321 is located at a position with the largest deformation in the Z-axis direction, and the first engaging portion 68 is disposed on the supporting portion 6321, so that the second engaging portion 69 is beneficial to applying the relatively smaller first acting force F to the first engaging portion 68, and thus a larger deformation is obtained, and smoothness of sliding of the sliding member 64 is further beneficial. Further, the follower 62 and the first engaging portion 68 may share a portion of the dimensional space in the Z-direction, thereby reducing the thickness dimension of the telescopic assembly 6.

Of course, it is understood that in other examples, the follower 62 and the first engaging portion 68 may be provided on both sides of the elastic deformation portion 632 in the Z direction.

With continued reference to fig. 13 and 14, to facilitate the installation of the elastic member 63 and the sliding member 64, the mounting seat 61 has an installation space 616. Both the sliding member 64 and the elastic member 63 are located in the installation space 616. The follower 62 includes a braking portion 621, the braking portion 621 being located outside the mounting seat 61, the braking portion 621 being adapted to be in abutting engagement with the aforementioned first carrier 3 in a braked state. Accordingly, the slide member 64 and the elastic member 63 can be protected by the mount 61, and the entire telescopic assembly 6 is highly compact.

Specifically, to form the installation space 616, referring to fig. 13 and 14, the mounting seat 61 includes a first plate 611 and two first side plates 612.

The first plate 611 has a flat plate shape. For example, the first plate body 611 has a rectangular flat plate shape, a circular flat plate shape, an elliptical flat plate shape, or a special shape.

The two first side plates 612 are oppositely disposed at both ends of the first plate body 611 in a third direction (for example, X-axis direction). That is, the two first side plates 612 are disposed opposite to each other in the X-axis direction. And the two first side plates 612 are connected to both ends of the first plate body 611 in the X-axis direction in one-to-one correspondence. The structure is simple.

On this basis, in some embodiments, please continue to refer to fig. 13 and 14, two ends of the fixing portion 631 in the X-axis direction are connected to the two first side plates 612 in a one-to-one correspondence. Thereby, the elastic member 63 is fixed to the mount 61, and the mounting reliability is high.

The connection between the fixing portion 631 and the first side plate 612 includes, but is not limited to, gluing, clamping, welding, or screw connection. Illustratively, the first side plate 612 is provided with a locating receptacle 6121. The fixing portion 631 has positioning tongues 6311 at both ends thereof. The locating tabs 6311 are in mating engagement with corresponding locating receptacles 6121. Of course, it is understood that the positioning jack 6121 may be provided on the fixing portion 631, and the positioning tongue 6311 may be provided on the first side plate 612, which is not particularly limited by the present application. Thus, the assembly efficiency of the two is improved.

On this basis, in some embodiments, the sliding member 64 is located between the first plate body 611 and the elastic member 63, so that the elastic member 63, the sliding member 64, and the first plate body 611 are sequentially arranged in the Z-axis direction, thereby facilitating the realization of a flattened design of the entire telescopic assembly 6, and the structure is more compact.

Illustratively, an end of the mounting space 616 remote from the first plate body 611 is open to form a mounting opening, and the elastic member 63 is fixed to the mounting opening. Therefore, the elastic member 63 can protect the structural member in the installation space 616 without additionally arranging a plate body at the installation opening, which is beneficial to saving the material cost.

The follower 62 includes a braking portion 621 and a connecting plate 622.

The braking portion 621 is on the side of the first plate body 611 remote from the slider 64.

In order to facilitate the installation of the driven member 62 without affecting the operation of the driven member 62, please continue to refer to fig. 13 and 14, the two ends of the braking portion 621 in the X-axis direction are respectively connected with the connecting plates 622. The first plate body 611 is provided with a through hole 6111. The connection plate 622 is inserted through the through hole 6111 and connected to the elastic deformation portion 632 (for example, the support portion 6321 described above). In this way, on the one hand, the through hole 6111 can avoid the connecting plate 622, so that the first plate body 611 is prevented from interfering with the movement of the follower 62 in the Z-axis direction, and on the other hand, the cooperation of the through hole 6111 and the connecting plate 622 can play a role in guiding the movement of the follower 62 in the Z-axis direction at least to a certain extent.

Exemplary means of connection between the connection plate 622 and the elastically deformable portion 632 include, but are not limited to, adhesive, snap-fit, welding, or screw connection.

Illustratively, the first plate body 611 is provided with through holes 6111 at both ends thereof in the X-axis direction, respectively. The connection plates 622 at both ends of the braking portion 621 in the X-axis direction are in one-to-one correspondence with the through holes 6111 at both ends of the first plate body 611 in the X-axis direction. Thus, the structural strength of the first plate body 611 is advantageously improved as compared with the case where one large through hole 6111 is provided while corresponding to the connection plates 622 at both ends of the braking portion 621 in the X-axis direction.

For example, referring to fig. 13 and 14, to facilitate positioning and installation of the follower 62, the connecting plate 622 is provided with a positioning tongue 6221. The elastic deformation portion 632 is provided with positioning notches 63211 at both ends in the X-axis direction, respectively. One positioning tongue 6221 corresponds to one positioning notch 63211. Thus, the engagement of the positioning tongue 6221 and the positioning notch 63211 serves to position the attachment of the follower 62, and also serves to connect the follower 62 and the elastic deformation portion 632. It will be appreciated that the locating notch 63211 can be provided on the connecting plate 622 and the locating tongue 6221 on the elastically deforming portion 632.

In order to prevent the follower 62 from interfering with the sliding of the slider 64 without affecting the operation of the follower 62, refer to fig. 16, fig. 16 is a schematic diagram illustrating the relative positional relationship among the slider 64, the follower 62 and the elastic member 63 in the telescopic assembly 6 shown in fig. 13. The slider 64 is located between the connection plates 622 at both ends of the braking portion 621 in the X-axis direction. Thus, the connection plates 622 at both ends of the braking portion 621 in the X-axis direction can be advantageously used to guide the sliding of the slider 64 to a certain extent without interfering with the movement of the slider 64.

With continued reference to fig. 16, the slider 64 includes a second plate 646 and two second side plates 647.

The second plate 646 is flat. The second plate 646 is illustratively rectangular flat plate, circular flat plate or shaped.

Referring to fig. 17, fig. 17 is a schematic cross-sectional view of the telescopic assembly 6 at line A-A according to fig. 12. In the Z-direction, the second plate 646 is located between the first plate 611 and the elastic deformation portion 632. The second engaging portion 69 is provided on a surface of the second plate 646 facing the elastic deformation portion 632. The first engaging portion 68 is provided on a surface of the elastic deformation portion 632 facing the second plate 646. Thus, the whole structure is more compact and flattened.

On the basis, the second engaging portion 69 is located at one side of the second plate 646 with the first engaging portion 68, and after the two engaging portions are engaged, the sliding member 64 can be limited from that side, and on the basis, in order to limit the other side of the sliding member 64 in the Z-axis direction, please refer to fig. 18, fig. 18 is an enlarged view of a circled portion at B shown in fig. 17. The surface of the second plate 646 facing the first plate 611 is provided with a limit rib 644. The spacing rib 644 contacts the first plate 611 such that the first plate 611 and the second plate 646 are spaced apart. In this way, the contact area between the limiting rib 644 and the first plate 611 is smaller, so that the movement interference of the first plate 611 to the sliding member 64 can be reduced, which is beneficial to improving the sliding smoothness of the sliding member 64.

In other examples, the spacing bead 644 may also be disposed on a surface of the first plate 611 facing the second plate 646, where the spacing bead 644 is in contact with the second plate 646. Alternatively, the first plate 611 and the second plate 646 are provided with the limit rib 644, the limit rib 644 provided on the first plate 611 contacts the second plate 646, and the limit rib 644 provided on the second plate 646 contacts the first plate 611. So long as the first plate 611 and the slider 64 are kept spaced apart.

Illustratively, the spacing bead 644 is a plurality. The plurality of spacing ribs 644 are spaced apart. Thereby, it is advantageous to ensure uniformity of the gap between the first plate body 611 and the slider 64.

Exemplary shapes of the spacing ribs 644 include, but are not limited to, cylindrical, frustoconical, hemispherical, square, triangular prism, or contoured. The material of the limiting bead 644 includes, but is not limited to, metal or plastic.

Illustratively, the connection between the spacing bead 644 and the structural member (the first plate 611 or the second plate 646) where the spacing bead 644 is located includes, but is not limited to, welding, gluing, clamping, or screwing. Also, for example, the spacing rib 644 and the structural member where the spacing rib 644 is located may be an integral structure, that is, the spacing rib 644 and the structural member where the spacing rib 644 is located are integrally formed. Thus, the method is beneficial to simplifying the processing technology and improving the connection strength between the two.

Referring back to fig. 13 and 14, two second side plates 647 are disposed opposite to each other at both ends of the second plate 646 along the X-axis direction. The two second side plates 647 are in one-to-one correspondence with the two first side plates 612, and the two second side plates 647 are located between the two first side plates 612. Thus, the arrangement direction of the two first side plates 612 is perpendicular to the sliding direction of the sliding member 64, so that the arrangement direction of the two first side plates 612 is prevented from being consistent with the sliding direction of the sliding member 64, and interference is avoided to the sliding of the sliding member 64. And the two first side plates 612 may provide a degree of guiding for the sliding movement of the slider 64.

On the basis, in the corresponding second side plate 647 and first side plate 612, a stopper rib (not shown in fig. 13 and 14) is provided on a surface of the second side plate 647 facing the first side plate 612, the stopper rib being in contact with the first side plate 612. In this way, the contact area between the limiting rib and the first side plate 612 is smaller, so that the movement interference of the first side plate 612 to the sliding member 64 can be reduced, which is beneficial to improving the smoothness of sliding of the sliding member 64.

In other examples, in the corresponding second side plate 647 and first side plate 612, a stopper rib is provided on a surface of the first side plate 612 facing the second side plate 647, and the stopper rib is in contact with the second side plate 647. Alternatively, in the corresponding second side plate 647 and first side plate 612, the first side plate 612 and the second side plate 647 are provided with a limiting rib. The limiting rib disposed on the second side plate 647 contacts the first side plate 612, and the limiting rib disposed on the first side plate 612 contacts the second side plate 647.

Illustratively, a plurality of spacing ribs are disposed between the second side panel 647 and the first side panel 612 in the corresponding second side panel 647 and first side panel 612.

Exemplary shapes of the spacing ribs include, but are not limited to, cylindrical, frustoconical, hemispherical, square, triangular prism, or profiled. The material of the limit rib comprises, but is not limited to, metal or plastic.

On this basis, in order to slide the sliding member 64 relative to the mounting seat 61, the purpose of elastically deforming the elastically deforming portion 632 to move the driven member 62 can be achieved, and referring to fig. 19, fig. 19 is an enlarged view of a circled portion at C shown in fig. 17. The first engaging portion 68 is a protrusion protruding from the surface of the elastically deforming portion 632 facing the second plate 646. The second engaging portion 69 is a protrusion protruding from the surface of the second plate 646 facing the elastically deforming portion 632. Of course, it is understood that in other examples, the first engagement portion 68 is a groove recessed relative to the surface of the elastically deforming portion 632 facing the second plate 646, and the second engagement portion 69 is a protrusion protruding from the surface of the second plate 646 facing the elastically deforming portion 632. Alternatively, the first engaging portion 68 is a protrusion protruding from the surface of the elastically deforming portion 632 facing the second plate body 646, and the second engaging portion 69 is a recess recessed with respect to the surface of the second plate body 646 facing the elastically deforming portion 632. As long as it is ensured that at least one of the second fitting portion 69 and the first fitting portion 68 is convex. In the following description, the first engaging portion 68 and the second engaging portion 69 are each exemplified as a projection.

Illustratively, when the first mating portion 68 is a protrusion, the connection between the first mating portion 68 and the elastically deforming portion 632 includes, but is not limited to, gluing, welding, clamping, or screwing. Further, for example, when the first engaging portion 68 is convex, the first engaging portion 68 and the elastically deforming portion 632 may be integrally connected. Thereby, the connection strength between the first engaging portion 68 and the elastically deforming portion 632 can be improved. When the first engaging portion 68 is convex, the shape of the first engaging portion 68 includes, but is not limited to, a cylinder, a triangular prism, a cube, a hemispherical shape, a conical shape, a triangular pyramid shape, a quadrangular pyramid shape, or a special shape.

Illustratively, when the second mating portion 69 is raised, the connection between the second mating portion 69 and the second plate 646 includes, but is not limited to, gluing, welding, clamping, or screwing. Also, for example, when the second engaging portion 69 is a protrusion, the second engaging portion 69 and the second plate 646 may be integrally connected. Thereby, the connection strength between the second engaging portion 69 and the second plate 646 can be improved. When the second engaging portion 69 is convex, the shape of the second engaging portion 69 includes, but is not limited to, a cylinder, a triangular prism, a cube, a hemispherical shape, a conical shape, a triangular pyramid shape, a quadrangular pyramid shape, or a special shape.

With continued reference to fig. 19, a surface of the first mating portion 68 facing the second mating portion 69 has a first inclined surface 681. Illustratively, the first inclined surface 681 is a plane or a curved surface, for example, when the first inclined surface 681 is a curved surface, the curved surface may be an arcuate surface. The first inclined surface 681 abuts against the second engaging portion 69. In the Y-axis direction, the first inclined surface 681 has opposite first and second ends d1 and d2. The distance between the second end d2 and the second plate 646 in the Z direction is greater than the distance between the first end d1 and the second plate 646 in the Z direction. Thus, in the Y-axis direction, and in the direction from the first end d1 to the second end d2, the first inclined surface 681 is inclined toward the direction approaching the second plate 646.

The slider 64 slides in the Y-axis direction relative to the mount 61 to drive the second engaging portion 69 to switch between the first end d1 and the second end d2.

Referring to fig. 20, fig. 20 is a schematic diagram illustrating a deformation condition of the elastic deformation portion 632 when the telescopic assembly 6 shown in fig. 19 is switched between the unlocked state and the braking state. As illustrated in fig. 20 (a), the second engaging portion 69 engages with the second end d2 in the braking state. Since the distance between the second end d2 and the surface of the second plate 646 facing the elastic deformation portion 632 is greater than the distance between the first end d1 and the surface of the second plate 646 facing the elastic deformation portion 632, the first end d1 is closer to the second plate 646. Thus, when the slider 64 slides from the second end d2 to the first end d1, the first force F applied by the second engaging portion 69 to the first engaging portion 68 increases, so that the elastic deformation portion 632 deforms in the Z-axis direction toward a direction away from the slider 64. The deformation of the elastic deformation portion 632 in the direction away from the second plate 646 brings the follower 62 to move away from the first carrier 3 in the Z-axis direction with respect to the mount 61 to the unlock state, as shown in (b) of fig. 20.

Similarly, since the distance between the second end d2 and the surface of the second plate 646 facing the elastic deformation portion 632 is greater than the distance between the first end d1 and the surface of the second plate 646 facing the elastic deformation portion 632, the second end d2 is further away from the second plate 646. Thus, when the slider 64 slides from the first end d1 to the second end d2, the first force F applied by the second engaging portion 69 to the first engaging portion 68 is reduced, so that the deformation of the elastic deformation portion 632 is restored and released, and the deformation of the elastic deformation portion 632 in the Z-axis direction is reduced, thereby driving the follower 62 to move in a direction approaching the first carrier 3 along the Z-axis direction with respect to the mount 61, to a braking state as shown in (a) of fig. 20. Meanwhile, due to the elastic force applied by the elastic deformation portion 632 to the driven member 62 and directed to the first carrier 3, the driven member 62 abuts against the first carrier 3, so that the friction force is large, and the driving motor can be braked in time.

The first matching part 68 and the second matching part 69 are matched, so that the structure is simple, the reliability is high, and the processing and the manufacturing are convenient.

With continued reference to fig. 19 and 20, the second engaging portion 69 has a second inclined surface 691. Illustratively, the second sloped surface 691 is a planar or curved surface, for example, when the first sloped surface 681 is a curved surface, the curved surface may be an arcuate surface.

The second inclined surface 691 is in abutting engagement with the first inclined surface 681. The second inclined surface 691 coincides with the inclined direction of the first inclined surface 681. Thus, during the relative movement of the second matching part 69 and the first matching part 68, a good guiding effect is beneficial to the relative movement of the two parts, and the reliability of the relative movement between the two parts is improved. In other examples, the second inclined surface 691 may not be provided on the second engaging portion 69.

Illustratively, the first inclined surface 681 and the second inclined surface 691 are both planar surfaces, and are disposed in parallel.

Referring to fig. 21, fig. 21 is a schematic diagram illustrating deformation of the elastic deformation portion 632 when the telescopic assembly 6 is switched between the unlocked state and the braked state according to another embodiment of the present application. This embodiment differs from the embodiment shown in fig. 19 and 20 in that: the first engagement portion 68 is not provided with the first inclined surface 681. The second engaging portion 69 has a second inclined surface 691. The first engagement portion 68 abuts against the second inclined surface 691. Specifically, in the Y direction, the second inclined surface 691 has a third end d3 and a fourth end d4 opposite to each other. The distance between the fourth end d4 and the elastic deformation portion 632 in the Z direction is greater than the distance between the third end d3 and the elastic deformation portion 632 in the Z direction. Accordingly, the second inclined surface 691 is inclined in the Y-axis direction from the fourth end d4 to the third end d3 in a direction approaching the elastic deformation portion.

The sliding member 64 slides in the Y-axis direction relative to the mounting base 61 to drive one of the third end d3 and the fourth end d4 to be engaged with the first engaging portion 68.

Specifically, as shown in fig. 21 (a), the state is a braking state, and at this time, the fourth end d4 abuts against the first engagement portion 68. The distance between the fourth end d4 and the elastic deformation portion 632 in the Z direction is greater than the distance between the third end d3 and the elastic deformation portion 632 in the Z direction, and thus the third end d3 is closer to the elastic deformation portion 632. Thus, when the slider 64 is slid from the fourth end d4 to the first engagement portion 68, the first force F applied to the first engagement portion 68 by the second engagement portion 69 increases, so that the elastic deformation portion 632 deforms in the Z-axis direction in a direction away from the slider 64. Deformation of the elastic arm 6322 in a direction away from the second plate 646 brings the follower 62 to move away from the first carrier 3 in the Z-axis direction relative to the mount 61 to an unlocked state as shown in (b) of fig. 21.

Similarly, since the distance between the fourth end d4 and the elastic deformation portion 632 in the Z direction is greater than the distance between the third end d3 and the elastic deformation portion 632 in the Z direction, the fourth end d4 is further away from the elastic deformation portion 632. Thus, when the slider 64 slides from the third end d3 to the fourth end d4, the first force F applied by the second engaging portion 69 to the first engaging portion 68 is reduced, so that the deformation of the elastic deformation portion 632 is restored and released, and the deformation of the elastic deformation portion 632 in the Z-axis direction is reduced, thereby driving the follower 62 to move in a direction approaching the first carrier 3 along the Z-axis direction with respect to the mount 61, to a braking state as shown in (a) of fig. 21. Meanwhile, due to the elastic force applied by the elastic deformation portion 632 to the driven member 62 and directed to the first carrier 3, the driven member 62 abuts against the first carrier 3, so that the friction force is large, and the driving motor can be braked in time.

In addition to any of the above embodiments, referring to fig. 13, 14 and 20, in order to drive the sliding of the sliding member 64, the driving motor 304 further includes a first driving structure 65. The first driving structure 65 is connected to the slider 64 to drive the slider 64 to move in the Y-axis direction with respect to the mount 61.

Specifically, the first drive structure 65 is a shape memory alloy (shape memory alloy, SMA) member. Along the first direction, the first driving structure 65 has opposite first and second fixed ends A1 and A2. The first fixed end A1 is provided to the slider 64. The second fixed end A2 is disposed on the mounting seat 61.

The shape memory alloy is a material composed of two or more metal elements having a shape memory effect by thermoelasticity and martensitic transformation and inversion thereof. The shape memory alloy has two deformed states (a first state and a second state). One of which is an austenite phase at high temperature and exists in the form of cubic crystals, and the other of which is a martensite phase at low temperature and exists in the form of monoclinic crystals. Wherein the transformation of austenite into martensite is referred to as martensite transformation, and the transformation of martensite into austenite is referred to as martensite reverse transformation. Thus, heating the SMA material above a certain critical temperature to perform a shape memory heat treatment (transformation) will deform it to a certain extent. When the SMA material is cooled to generate a martensite phase and then is heated to a temperature above a critical temperature again, the martensite phase at a low temperature is reversely transformed into a austenite phase at a high temperature (namely, reverse transformation is generated), so that the state memorized before deformation is restored.

Thus, by utilizing this characteristic of the shape memory alloy, the shape memory alloy member can be deformed to expand and contract when it is transformed in two forms. That is, the length value (i.e., the first length) of the shape memory alloy member from the first fixed end A1 to the second fixed end A2 at the second end d2 in the first configuration is not equal to the length value (i.e., the first length) of the shape memory alloy member from the first fixed end A1 to the second fixed end A2 at the second configuration.

Therefore, the first driving structure 65 is set as a deformation memory alloy piece, the deformation characteristic of the deformation memory alloy is utilized to generate the length change from the first fixing end A1 to the second fixing end A2 to drive the sliding piece 64 to move, the structure of the first driving structure 65 is simplified, the occupied space of the first driving structure 65 is reduced, and the requirement on the assembly space and the assembly difficulty are reduced.

It will be appreciated that in practice the shape memory alloy member may be heated by energizing the shape memory alloy member and cooled by de-energizing the shape memory alloy member to cause the shape memory alloy member to transition between the two configurations. Specifically, when an electric current flows into the shape memory alloy member, the shape memory alloy member converts part of the electric energy into heat due to the resistance characteristic, and the shape memory alloy member shortens under the effect of the heat generated by itself. When the shape memory alloy member is de-energized, the shape memory alloy member cools and expands. Therefore, based on the characteristics of thermal shrinkage and cold expansion of the shape memory alloy member, the first driving structure 65 can be powered on or powered off to shorten or lengthen the first driving structure 65, so as to achieve the purpose of driving the movement of the sliding member 64. Of course, it will be appreciated that in other examples, the driving of the slide 64 may be accomplished by applying a different amount of current to the shape memory alloy member to heat or cool the shape memory alloy member. In the following description, the driving of the slider 64 by the shape memory alloy member is described as being implemented by energizing or de-energizing the shape memory alloy member.

Referring to fig. 20 and 21, in a direction from the second fixed end A2 to the first fixed end A1, the first inclined surface 681 and/or the second inclined surface 691 are inclined toward a direction away from the second plate 646. At this time, the shape memory alloy member is energized during the switching of the telescopic assembly 6 from the braking state to the unlocking state. At this time, the shape memory alloy member is energized to shorten to drive the slider 64 to move along the inclined surface to the unlock state. When the unlocked state is reached, the retraction assembly 6 is still in the energized state. When the telescopic assembly 6 is switched from the unlocking state to the braking state, the shape memory alloy member is de-energized and stretched, and simultaneously the sliding member 64 is reversely moved to the unlocking state under the action of the elastic restoring force of the elastic deformation portion 632 and the abutting force between the first matching portion 68 and the second matching portion 69.

Illustratively, the shape memory alloy member is an SMA wire. SMA wires are wire structures made of SMA.

The structural form of the first driving structure 65 is not limited thereto, and in other examples, the first driving structure 65 may not be a shape memory alloy member. For example, the first drive structure 65 includes a coil and a magnet 6b. The magnet 6b is provided on the slider 64, and the coil is provided on the mount 61. When the coil is energized, an induced magnetic field magnetically attracted to the magnet 6b can be generated, and when the coil is de-energized, the magnetic field generated by the coil disappears. Thus, actuation of the slider 64 may be achieved by energizing or de-energizing the coil.

On the basis of the above embodiment, referring to fig. 22 and 23, fig. 22 is an enlarged view of a circled portion at D shown in fig. 17. Fig. 23 is a schematic view of the cooperation of the slider 64, the mounting seat 61 and the first driving structure 65 in the telescopic assembly 6 according to fig. 14. In this embodiment, the first driving structure 65 is located between the second plate 646 and the elastic deformation portion 632. The second plate 646 has a hook 641 on a surface facing the elastic deformation portion 632. The surface of the hook 641 facing away from the second fixing end A2 is formed with a hanging groove 64a, and the first fixing end A1 is accommodated in the hanging groove 64 a. Thereby, the mounting of the first driving structure 65 and the slider 64 can be simplified, and the assembly efficiency can be improved.

Specifically, the first drive structure 65 includes a first drive section 651, a second drive section 652, and a third drive section 653. The first driving section 651 and the second driving section 652 are disposed opposite to each other in the third direction (X-axis direction). The first driving section 651 and the second driving section 652 each extend in the Y-axis direction. The second mating portion 69 is between the first drive section 651 and the second drive section 652. One end of the first driving section 651 in the Y-axis direction and one end of the second driving section 652 in the Y-axis direction define the above-mentioned second fixed end A2. Both ends of the hanging groove 64a in the third direction are open. The third driving section 653 forms the first fixed end A1 described above and is received in the hooking recess 64 a. Both ends of the third driving section 653 in the third direction are connected to the other end of the first driving section 651 in the Y-axis direction and the other end of the second driving section 652 in the Y-axis direction, respectively. Therefore, the first driving structure 65 has a simple structure and is convenient to assemble, and the position relationship between the first driving structure 65 and the second matching portion 69 is reasonable in layout, so that mutual interference between the first driving structure 65 and the second matching portion 69 is avoided.

Illustratively, the connection between the hook 641 and the slider 64 includes, but is not limited to, gluing, welding, clamping, or screw connection. Also illustratively, the hook 641 is integrally connected to the slider 64, i.e., the hook 641 is integrally formed with the slider 64. For example, the hook 641 is formed using a stamping process. In other examples, the hook 641 may be integrally connected to the slider 64 using a CNC, metal powder molding, injection molding, casting, or the like. This way. Is beneficial to simplifying the processing technology of the two, reducing the cost and improving the connection strength of the two.

On this basis, the groove bottom wall of the hanging groove 64a is formed as an arc surface arched in a direction away from the second fixed end A2. Thereby, it is advantageous to improve smooth transition between the groove bottom wall of the hanging groove 64a and both side surfaces of the hooking portion 641 along the arrangement direction of the first driving section 651 and the second driving section 652, thereby preventing scratch of the first driving structure 65 due to sharp corners between the groove bottom wall of the hanging groove 64a and both side surfaces of the hooking portion 641 along the arrangement direction of the first driving section 651 and the second driving section 652, thereby improving the service life of the first driving structure 65.

With continued reference to fig. 23, to facilitate introduction of electrical power into the first drive structure 65, with continued reference to fig. 23, the retraction assembly 6 further includes a flexible circuit board 67. The flexible circuit board 67 includes a first flexible portion 671 and a second flexible portion 672. The second fixed end A2 is fixed to the first flexible portion 671 and is electrically connected to the flexible circuit board 67. The second flexible portion 672 is connected to the first flexible portion 671, and the second flexible portion 672 is used for electrical connection with the second circuit board 4 described above.

In some examples, a resilient clip 613 is provided on the first plate 611 of the mount 61. The integral structure formed by the first flexible portion 671 and the second fixed end A2 is clamped to the elastic clamp 613. By the design, the installation can be simplified, and the assembly efficiency is improved. In other examples, the elastic clip 613 may also be provided on both the first side plates 612.

Illustratively, the resilient clip 613 includes a body portion 6131 and a clamping portion 6132. Wherein the body portion 6131 is connected to the first plate body 611. The number of the clamping parts 6132 is two, and the clamping parts have an L-shaped shape. Two clamping portions 6132 are respectively connected to both ends of the body portion 6131 in the X-axis direction. Each clamping portion 6132 defines a clamping space with the body portion 6131. Both ends in the X-axis direction of the integral structure formed by the first flexible portion 671 and the second fixed end A2 are respectively caught in the two holding spaces.

With reference to fig. 24, fig. 24 is a schematic view illustrating a structure of the mount 61, the slider 64, the first driving structure 65 and the second driving structure 6a of the telescopic assembly 6 according to still another embodiment of the present application. The telescopic assembly 6 further comprises a second drive structure 6a. The second driving structure 6a is a shape memory alloy member. The second driving structure 6a includes a third fixed end A3 and a fourth fixed end A4. The third fixed end A3 is provided to the slider 64. The fourth fixed end A4 is provided on the mounting base 61. Along the first direction, the fourth fixed end A4 is at a side of the third fixed end A3 away from the second fixed end A2, and the second fixed end A2 is at a side of the first fixed end A1 away from the fourth fixed end A4. That is, along the first direction, the first fixed end A1 is between the second fixed end A2 and the fourth fixed end A4, and the third fixed end A3 is between the second fixed end A2 and the fourth fixed end A4. Illustratively, the second drive structure 6a and the first drive structure 65 are symmetrically disposed with respect to the second mating portion 69.

The deformation state of the second driving structure 6a is opposite to the deformation state of the first driving structure 65, that is, the on-off state of the second driving structure 6a is opposite to the on-off state of the first driving structure 65. Specifically, when the first driving structure 65 is deenergized and elongated, the second driving structure 6a is deenergized and shortened. When the first drive structure 65 is energized for a short time, the second drive structure 6a is de-energized for an elongation. Thus, the cooperation of the second driving structure 6a and the first driving structure 65 is advantageously utilized to achieve the reliability of the reciprocating movement of the slider 64.

The connection manner between the second driving structure 6a and the mounting seat 61 may refer to the connection manner between the first driving structure 65 and the mounting seat 61, and the connection manner between the second driving structure 6a and the sliding member 64 may refer to the connection manner between the first driving structure 65 and the sliding member 64, which will not be described herein.

With reference to fig. 25 and 26, fig. 25 is a perspective view of the telescopic assembly 6 according to still other embodiments of the present application. Fig. 26 is a schematic view of an exploded construction of the telescopic assembly 6 according to fig. 25. This embodiment differs from the embodiment shown in fig. 12-24 in that: the retraction assembly 6 also includes a spring 66. The spring 66 is located in the mounting space 616. In some specific examples, the spring 66 is located between the second plate 646 and the elastically deforming portion 632. In other examples, the spring 66 may also be located between the second plate 646 and the first plate 611.

The spring 66 has a first connecting end portion 661 and a second connecting end portion 662 that are opposite in the Y-axis direction. Wherein the first connecting end 661 is fixed relative to the slider 64. The second connection end portion 662 is fixed relative to the mount 61. The spring 66 is used to apply an elastic force in the first direction to the slider 64. Thus, the spring 66 may keep the second mating portion 69 and the first mating portion 68 in abutment, i.e., the spring 66 may keep the second mating portion 69 and the first mating portion 68 in abutment at the first inclined surface 681 and/or the second inclined surface 691, thereby facilitating improvement of the mating reliability of the second mating portion 69 and the first mating portion 68 during movement of the slider 64 relative to the mounting seat 61.

The number of springs 66 may be one or more, for example.

In some specific examples, please continue to refer to fig. 26, 27 and 28, fig. 27 is an exploded schematic view of the mount 61, the slider 64 and the spring 66 according to fig. 26, and fig. 28 is an assembled schematic view of the mount 61, the slider 64 and the spring 66 according to fig. 26. The springs 66 are plural. The plurality of springs 66 may be divided into two sets of springs. Two sets of springs are provided on both sides of the second engaging portion 69 in the first direction. Thus, one set of springs is preloaded between the slider 64 and the mount 61, and the other set of springs is preloaded between the slider 64 and the mount 61. Thus, one of the springs applies a pushing force to the slider 64, and the other spring applies a pulling force to the second engaging portion 69, so that the engaging reliability of the second engaging portion 69 and the first engaging portion 68 can be further improved during the movement of the slider 64 relative to the mount 61.

The number of springs 66 in each set may be one or more. Of course, it will be appreciated that in other examples, the springs 66 may be provided in only one group. The number of the set of springs may be one or plural, for example, when the set of springs is plural, the plural springs 66 are spaced apart in the X-axis direction.

Illustratively, the springs 66 extend in a serpentine fashion in the Y-axis direction, that is, the springs 66 are serpentine springs. By such arrangement, compared with the spiral spring 66, the thickness dimension of the spring 66 in the Z-axis direction can be reduced, which is beneficial to reducing the occupied dimension of the spring 66 in the Z-axis direction, thereby being beneficial to realizing the flat design of the telescopic assembly 6, reducing the volume of the driving motor 304 and realizing the thin design of the electronic equipment 100. Of course, it will be appreciated that in other examples, the spring 66 may also be a coil spring.

Wherein, "the spring 66 extends in a serpentine fashion in the Y-axis direction" means that the spring 66 extends in a serpentine fashion in the Y-axis direction.

With continued reference to fig. 27 and 28, the first connecting end 661 is engaged with the slider 64. Thus, the mounting between the spring 66 and the slider 64 can be simplified, and the assembly efficiency can be improved.

Specifically, the first connecting end 661 has a first snap hole 6611. Illustratively, the shape of the first snap hole 6611 includes, but is not limited to, a bar shape, a circle shape, an oval shape, or a profile shape.

The surface of the second plate 646 facing the spring 66 is provided with a first engagement plate 642. For example, the first clamping plate 642 and the slider 64 may be a unitary structure. For example, the first snap hole 6611 is formed by a punching process. As another example, the first clamping plate 642 and the slider 64 are formed by a metal injection molding process or an injection molding process. Of course, in other examples, a welded, glued, or screwed connection may be provided between the first clamping plate 642 and the slider 64.

The first clamping plate 642 is clamped with the first clamping hole 6611. Thus, the assembly between the spring 66 and the slider 64 is simple, which is advantageous in improving the assembly efficiency.

It should be appreciated that in other examples, the first clamping plate 642 may also be formed on the first connecting end 661 and the first clamping hole 6611 formed on the slider 64. In addition, it is also understood that the connection between the first connecting end 661 and the slider 64 is not limited to the snap connection, and the two may be connected by welding or screw connection.

On this basis, the second connection end 662 is snap-fitted to the mount 61 in order to further simplify the mounting of the spring 66. Accordingly, the mounting between the spring 66 and the mount 61 can be simplified, and the assembly efficiency can be improved.

Specifically, the second connection end portion 662 has a second snap hole 6621. Illustratively, the shape of the second snap hole 6621 includes, but is not limited to, a bar shape, a circle shape, an oval shape, or a profile shape.

The surface of the first plate body 611 facing the spring 66 is provided with a second clamping plate 614. Illustratively, the second clamping plate 614 and the first plate 611 may be in a unitary structure. For example, the second clamping plate 614 is formed by a stamping process. As another example, the second clamping plate 614 and the slider 64 are formed by a metal injection molding process or an injection molding process. Of course, in other examples, a welded, glued, or screwed connection may be provided between the first clamping plate 642 and the slider 64.

The second clamping plate 614 is matched with the second clamping hole 6621. Thus, the assembly between the spring 66 and the slider 64 is simple, which is advantageous in improving the assembly efficiency.

It is appreciated that in other examples, the second clamping plate 614 may also be formed on the second connecting end 662 and the second clamping hole 6621 formed on the slider 64. In addition, it is also understood that the connection between the second connection end 662 and the mounting seat 61 is not limited to a snap connection, and the two may be connected by welding or screw connection.

With continued reference to fig. 27 and 28, when the spring 66 is disposed between the second plate 646 and the elastically deforming portion 632, the second plate 646 has a through hole 643 penetrating the second plate 646 to prevent the second plate 646 from interfering with the assembly between the mounting seat 61 and the spring 66. The second clamping plate 614 is arranged through the through hole 643. The size of the through hole 643 in the Y-axis direction is larger than the size of the second clamping plate 614 in the Y-axis direction. In this way, on the one hand, the interference of the slider 64 to the fixation between the mount 61 and the spring 66 can be avoided, and on the other hand, the sliding of the slider 64 can be guided by the engagement of the through hole 643 and the second engagement plate 614, so that the sliding reliability of the slider 64 can be improved.

Illustratively, the number of springs 66 may be one. Or a plurality of them may be used. It should be noted that, when the number of the springs 66 is plural, plural through holes 643 may be disposed on the second board body 646, and one spring 66 corresponds to one second card board 614 and one through hole 643. Only one through hole 643 may be provided in the slide plate. The one through hole 643 corresponds to one of the springs 66 and the second clamping plate 614 corresponding to one of the springs 66. In the specific example shown in fig. 27 to 28, the number of springs 66 is two, and each spring 66 corresponds to one second engagement plate 614. The number of the through holes 643 is one, and the second clamping plate 614 corresponding to one of the springs 66 is inserted into the through hole 643. The second engagement plate 614 corresponding to the other spring 66 is on one side of the slider 64 in the self-sliding direction.

With reference to fig. 29 and 30, fig. 29 is a schematic structural view of a telescopic assembly 6 according to other embodiments of the present application. Fig. 30 is a schematic view of an exploded construction of the telescopic assembly 6 according to fig. 29. This embodiment differs from the embodiment shown in fig. 12-28 in that: to facilitate the bending deformation of the elastic deformation portion 632, the elastic arm 6322 has a hollowed portion 632a.

Specifically, with continued reference to fig. 30, the resilient arm 6322 includes a plurality of bullet-shaped resilient arms 63221 spaced apart in the X-axis direction. A hollowed-out portion 632a is formed between two adjacent sub elastic arms 63221. Accordingly, the bending deformation capability of the elastic deformation portion 632 can be ensured, and the connection strength of the elastic arm 6322 to the fixing portion 631 and the supporting portion 6321 can be improved.

Illustratively, in the specific example shown in fig. 30, the number of bullet-shaped arms 63221 in each of the resilient arms 6322 is two. In other examples, the resilient arm 6322 may also include three or more bullet-shaped arms 63221. In other examples, the hollow portion 632a may not be provided on the elastic arm 6322.

With reference to fig. 30, and in combination with fig. 31 and 32, fig. 31 is a schematic connection diagram of the sliding member 64 and the first driving structure 65 according to fig. 30, and fig. 32 is a schematic cross-sectional structure diagram of the telescopic assembly according to fig. 29 at line G-G, based on the embodiment that any of the first engaging portions 68 is convex and the first engaging portion 68 has the first inclined surface 681. The second plate 646 is provided with a first relief hole 645. Along the Y-direction and in a direction from the second end d2 to the first end d1, the second engaging portion 69 and the first avoiding hole 645 are sequentially arranged and joined. In this way, when the second engaging portion 69 moves from the first end d1 to the second end d2, since the distance between the second end d2 and the slider 64 in the Z direction is greater than the distance between the first end d1 and the slider 64 in the Z direction, the first avoiding hole 645 can avoid the first end d1, so as to prevent the occurrence of the problem of the contact jam between the first end d1 of the first engaging portion 68 and the surface of the slider 64 caused by the absence of the first avoiding hole 645.

On this basis, since the first plate body 611 is located on the side of the second plate body 646 away from the elastic deformation portion 632, in order to prevent the problem that when the second fitting portion 69 moves from the first end d1 to the second end d2, the first end d1 of the first fitting portion 68 is blocked by abutment with the surface of the first plate body 611, the first plate body 611 is provided with the second avoidance hole 615, and the orthographic projection of the second avoidance hole 615 on the second plate body 646 overlaps with the first avoidance hole 645. Illustratively, the orthographic projection of the second relief aperture 615 onto the second plate 646 is located within the first relief aperture 645 or coincident with the first relief aperture 645.

With continued reference to fig. 31 and 32, the telescoping assembly 6 includes a bending member 6h. One end of the bending piece 6h is integrally connected to the wall of the first relief hole 645. After extending in the direction approaching the first engaging portion 68, the bending member 6h is folded in the Y-axis direction in a direction away from the first escape hole 645. The portion of the bending piece 6h located outside the first relief hole 645 defines the second fitting portion 69. In this way, in the actual processing procedure, the blank can be processed by adopting a stamping process to form the first avoiding hole 645, and the part of the blank originally used for forming the first avoiding hole 645 can be folded to form the folded piece 6h, so that the second matching part 69 is formed, the processing process is simple, the processing efficiency is improved, and the processing cost is reduced.

Illustratively, the end of the bending member 6h remote from the first relief aperture 645 interfaces with a surface of the slider 64 facing the first mating portion 68. Thereby, the connection reliability of the bending piece 6h and the slider 64 is advantageously improved.

On the basis of any of the above embodiments, please combine fig. 30 and 32, the telescopic assembly 6 further includes a hall sensor 6c and a magnet 6b. The hall sensor 6c is fixed relative to the mount 61. Exemplary ways of connection between the hall sensor 6c and the mount 61 include, but are not limited to, gluing, welding or clamping. For example, the hall sensor 6c is fixed to and electrically connected to the flexible circuit board 67 described above, so that the hall sensor 6c is electrically connected to the second circuit board 4, thereby realizing signal transmission.

The magnet 6b is fixed relative to the slider 64 such as the second plate 646. Exemplary means of connection between the magnet 6b and the slide 64 include, but are not limited to, gluing, clamping, or screw connection.

The hall sensor 6c is for detecting the magnetic field strength of the magnet 6b. It will be appreciated that as the slider 64 moves in the Y-axis direction relative to the mount 61, the magnet 6b also moves relative to the mount 61 with movement of the slider 64. At this time, the magnet 6b will be in a different position. The hall sensor 6c can detect the magnetic field strength when the magnet 6b is in different positions, i.e. the hall sensor 6c can sense the magnetic field change of the magnet 6b. Thus, detection of the sliding distance of the slider 64 is achieved. Therefore, by detecting the sliding distance of the sliding member 64 relative to the mounting seat 61, the state (i.e. the unlocked state or the braked state) of the sliding member 64 can be accurately determined, so that the first driving structure 65 can be conveniently controlled according to the detection result of the hall sensor 6c, for example, when the first driving structure 65 is a shape memory alloy member, the first driving structure 65 is conveniently controlled to be electrified or powered off, so as to realize closed-loop control on the telescopic assembly 6, and further, the closed-loop control on the driving motor 304 is facilitated.

It will be appreciated that in other examples, the hall sensor 6c may also be provided to the slider 64. The magnet 6b is provided to the mount 61. In addition, it should be understood that in other examples, the magnet 6b and the hall sensor 6c may not be provided in the telescopic assembly 6.

Referring to fig. 33, fig. 33 is a schematic diagram illustrating deformation of the elastic deformation portion when the telescopic assembly 6 is switched between the unlocked state and the braked state according to still other embodiments of the present application. This embodiment differs from the embodiment shown in fig. 12-32 in that: the first fitting portion 68 is a first magnet. The second fitting portion 69 is a second magnet.

Specifically, the connection manner of the first magnet and the elastic deformation portion 632 includes, but is not limited to, clamping, gluing, or screw connection. The first magnet may be a magnet or a magnet steel. The shape of the first magnet includes, but is not limited to, a cube-like, prismatic, cylindrical, pyramidal, or other contoured shape. Further, both side surfaces in the thickness direction (i.e., the Z-axis direction) of the first magnet may be planar. The arrangement is simple in structure, convenient to process and manufacture and small in space occupied by the first magnet.

Specifically, the second magnet may be coupled to the slider 64 by, but not limited to, a snap fit, an adhesive, a screw connection, or the like. In particular, the second magnet may be a magnet or a magnetic steel. The shape of the second magnet includes, but is not limited to, a cube-like, prismatic, cylindrical, pyramidal, or other contoured shape. Further, both side surfaces in the thickness direction (i.e., the Z-axis direction) of the second magnet may be planar. The arrangement is simple in structure, convenient to process and manufacture and small in space occupied by the second magnet.

The magnetizing direction of the first magnet (the direction from the south pole to the north pole, i.e., the direction from the S pole to the N pole), the magnetizing direction of the second magnet, and the magnetizing direction of the first magnet are parallel to the Z-axis direction, and the magnetizing direction of the first magnet is opposite to the magnetizing direction of the second magnet. For example, referring to fig. 33, the end of the second magnet adjacent to the first magnet is N-pole, and the end of the second magnet far from the first magnet is S-pole. One end of the first magnet, which is adjacent to the second magnet, is N pole, and one end of the first magnet, which is far away from the second magnet, is S pole. Also exemplary, the second magnet has an S-pole end adjacent to the first magnet, an N-pole end remote from the first magnet, an S-pole end adjacent to the second magnet, and an N-pole end remote from the second magnet. As long as the magnetization directions of the first magnet and the second magnet in the first direction are ensured to be opposite.

The slider 64 slides in the Y-axis direction relative to the mount 61 to drive the second magnet to switch between a positive engagement position directly opposite the first magnet and a staggered engagement position staggered from the first magnet.

Specifically, as shown in fig. 33 (a), the second magnet and the first magnet are in the offset engagement position. That is, the second magnet and the first magnet do not overlap in the XY plane. When the slider 64 moves the second magnet to a facing engagement position facing the first magnet, a magnetic repulsive force (i.e., a first force F) between the second magnet and the first magnet drives the elastically deforming portion to deform in a direction away from the slider 64 in the Z-axis direction. The deformation of the elastic deformation portion 632 in the direction away from the slider 64 brings the follower 62 to move away from the first carrier 3 in the Z-axis direction with respect to the mount 61 to the unlock state, as shown in (b) of fig. 33.

It should be noted that the "positive fitting position where the second magnet is directly opposite to the first magnet" means that the second magnet overlaps the first magnet in the XY plane. For example, the "facing engagement position where the second magnet faces the first magnet" refers to a position where the overlapping area of the second magnet and the first magnet is largest in the XY plane.

Similarly, when the sliding member 64 drives the second magnet to move to the staggered matching position staggered with the first magnet, the magnetic repulsive force (i.e. the first acting force F) between the second magnet and the first magnet is 0, so that the deformation of the elastic deformation portion 632 is restored and released under the action of the self elastic restoring force, and the deformation of the elastic deformation portion 632 in the Z-axis direction is reduced, so as to drive the follower 62 to move along the Z-axis direction towards the direction approaching the first carrier 3 relative to the mounting seat 61, to the braking state as shown in (a) in fig. 33.

The above embodiments describe the application of the driving motor 304 in the periscope type camera module 30, and in other embodiments, the driving motor 304 may be applied in the vertical type camera module 30 to drive the vertical lens to rotate around the X-axis or the Y-axis for tracking. The telescopic assembly 6 may be disposed between the vertical lens and the support base 1, and the present application will not be described in detail.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. The telescopic assembly is used for a driving motor of a camera module, the camera module comprises a light path turning element, the driving motor comprises a supporting seat and a first carrier, the first carrier is rotatable around a first axis relative to the supporting seat, the light path turning element is fixed on the first carrier, and the telescopic assembly is positioned between the first carrier and the supporting seat; the telescoping assembly includes:

the telescopic assembly is fixed on the supporting seat through the mounting seat;

a follower;

the elastic piece is provided with a fixing part and an elastic deformation part, the fixing part is fixed on the mounting seat, the driven piece is fixed on the elastic deformation part, the elastic deformation part applies elastic force directed to the first carrier to the driven piece, and a first matching part is arranged on the elastic deformation part;

the sliding part is slidably connected to the mounting seat along a first direction, a second matching part is arranged on the sliding part, the second matching part is matched with the first matching part when the sliding part slides relative to the mounting seat along the first direction, so that the elastic deformation part elastically deforms in the second direction to drive the driven part to move in the second direction, and the driven part moves to switch between a braking state in abutting fit with the first carrier and an unlocking state in disengaging from the first carrier, wherein the second direction is perpendicular to the first direction.

2. The telescopic assembly according to claim 1, wherein the elastically deformable portion comprises a support portion and an elastic arm, the orthographic projection of the support portion and the orthographic projection of the fixing portion being arranged at intervals in a plane perpendicular to the second direction; the elastic arm is connected between the supporting part and the fixing part, and the driven piece is arranged at one end of the supporting part in the second direction.

3. The telescopic assembly of claim 2, wherein the first mating portion is disposed at an end of the support portion where the follower is located.

4. A telescopic assembly according to claim 2 or 3, wherein the number of the elastic arms and the number of the fixing portions are two, the two elastic arms and the two fixing portions are in one-to-one correspondence, the two elastic arms are symmetrically arranged on two sides of the supporting portion, each elastic arm is connected between the corresponding fixing portion and the supporting portion, and the elastic deformation portion arches towards the side where the driven member is located.

5. The telescopic assembly according to any one of claims 1-4, wherein the mounting base has a mounting space, the elastic member and the sliding member being both disposed within the mounting space;

The follower includes a braking portion located outside of the mount.

6. The retraction assembly according to claim 5 wherein said mounting includes a first plate and said slider includes a second plate, said second plate being positioned between said first plate and said resilient deformation in a second direction;

the braking portion is located on one side, far away from the second plate body, of the first plate body, the first matching portion is arranged on the surface, facing the second plate body, of the elastic deformation portion, and the second matching portion is arranged on the surface, facing the elastic deformation portion, of the second plate body.

7. The telescopic assembly according to claim 6, wherein a limiting rib is arranged on the surface of the second plate body facing the first plate body, and the limiting rib is in contact with the first plate body; and/or the number of the groups of groups,

the surface of the first plate body facing the second plate body is provided with a limiting convex rib, and the limiting convex rib is in contact with the second plate body.

8. The retraction assembly according to claim 6 or 7 wherein the first engagement portion has a first ramp surface in abutting engagement with the second engagement portion, the first ramp surface having opposite first and second ends in a first direction, a distance between the second end and the second plate in a second direction being greater than a distance between the first end and the second plate in a second direction, the slider reciprocally sliding relative to the mounting seat in the first direction to cause the second engagement portion to switch between the first and second ends.

9. The retraction assembly according to any one of claims 6 to 8 wherein the second engagement portion has a second inclined surface in abutting engagement with the first engagement portion, the second inclined surface having opposed third and fourth ends in a first direction, the distance between the fourth end and the resiliently deformable portion in the second direction being greater than the distance between the third end and the resiliently deformable portion in the second direction, the slider sliding relative to the mounting seat in the first direction to bring one of the third and fourth ends into switching engagement with the first engagement portion.

10. The retraction assembly according to claim 8 wherein the second engagement portion has a second ramp surface in abutting engagement with the first ramp surface, the second ramp surface being aligned with the direction of inclination of the first ramp surface.

11. The retraction assembly according to claim 8 wherein the first engagement portion is a protrusion protruding from a surface of the elastically deformable portion;

the second plate body is provided with a first avoiding hole, the second plate body is provided with a second matching part and the first avoiding hole are sequentially arranged and connected along the first direction and from the second end to the first end.

12. The telescopic assembly according to claim 11, wherein the second plate body is provided with a bending member, one end of the bending member is integrally connected with the hole wall of the first avoidance hole, the bending member is folded along the first direction in a direction away from the first avoidance hole after extending in a direction close to the first engagement portion, and a portion of the bending member located outside the first avoidance hole defines the second engagement portion.

13. The retraction assembly according to any one of claims 8 to 12 wherein the first engagement portion is a protrusion protruding from a surface of the resilient deformation portion; and/or the second matching part is a protrusion protruding from the surface of the second plate body.

14. The retraction assembly according to any one of claims 8 to 13 further including a spring located within said mounting space, said spring having first and second connection ends opposed in a first direction, said first connection end being relatively fixed to said slider and said second connection end being relatively fixed to said mounting seat, said spring being adapted to apply an elastic force to said slider in a first direction to retain said first and second mating portions in abutment.

15. The telescopic assembly according to claim 14, wherein the springs are arranged in two groups, the two groups of springs being arranged on both sides of the second mating portion in the first direction, respectively.

16. The telescopic assembly according to claim 14 or 15, wherein the first connection end has a first clamping hole, and a first clamping plate is arranged on the surface of the second plate body facing the spring, and the first clamping plate is matched with the first clamping hole; and/or the number of the groups of groups,

the second connecting end part is provided with a second clamping hole, the first plate body is provided with a second clamping plate, and the second clamping plate is matched with the second clamping hole.

17. The retraction assembly according to claim 16 wherein said spring is positioned between said second plate and said resilient deformation, said second plate having a via therethrough, said second snap plate passing through said via, said via having a dimension in said first direction that is greater than a dimension of said second snap plate in said first direction.

18. The telescopic assembly according to claim 6 or 7, wherein the first mating portion is a first magnet and the second mating portion is a second magnet, wherein the magnetizing direction of the first magnet, the magnetizing direction of the second magnet and the magnetizing direction of the second magnet are parallel, and wherein the magnetizing direction of the first magnet and the magnetizing direction of the second magnet are opposite;

The sliding piece slides relative to the mounting seat along a first direction so as to drive the second magnet to switch between a positive matching position opposite to the first magnet and a staggered matching position staggered with the first magnet.

19. The telescopic assembly according to any one of claims 6-18, wherein the mounting base comprises two first side plates, the two first side plates are oppositely arranged at two ends of the first plate body along a third direction, the two ends of the fixing portion along the third direction are respectively connected with the two first side plates in a one-to-one correspondence manner, and the third direction is perpendicular to both the second direction and the first direction.

20. The telescopic assembly according to claim 19, wherein the slider comprises two second side plates, the two second side plates being oppositely disposed at both ends of the second plate body in the third direction;

the two second side plates are positioned between the two first side plates, and the two second side plates are in one-to-one correspondence with the two first side plates;

in the corresponding second side plate and first side plate, a limiting rib is arranged on the surface of the second side plate facing the first side plate, and the limiting rib is in contact with the first side plate; and/or in the corresponding second side plate and first side plate, a limiting rib is arranged on the surface of the first side plate facing the second side plate, and the limiting rib is in contact with the second side plate.

21. The telescopic assembly according to any one of claims 6-20, wherein the follower comprises a connecting plate, the connecting plates are respectively connected to two ends of the braking portion in a third direction, a through hole is formed in the first plate body, the connecting plates penetrate through the through hole, the connecting plates are connected to the elastic deformation portion, and the third direction is perpendicular to both the second direction and the first direction.

22. The telescopic assembly according to claim 21, wherein the slider is between the connection plates at both ends of the braking portion in the third direction.

23. The retraction assembly according to any one of claims 1 to 22 further including a first drive structure coupled to said slider, said first drive structure for driving said slider to slide in a first direction relative to said mounting base.

24. The retraction assembly according to claim 23 wherein said first actuation structure is a shape memory alloy member, said first actuation structure having opposite first and second fixed ends along a first direction, said first fixed end being disposed on said slider and said second fixed end being disposed on said mounting base.

25. The retraction assembly according to claim 24 wherein said slider includes a second plate positioned on one side of said resilient deformation in a second direction, said first drive structure being positioned between said second plate and said resilient deformation;

the surface of the second plate body facing the elastic deformation part is provided with a hook part, a hanging groove is formed on the surface of the hook part, which is away from the second fixed end, and the first fixed end is accommodated in the hanging groove.

26. The retraction assembly according to claim 25 wherein said first drive structure includes a first drive section, a second drive section and a third drive section, said first drive section and said second drive section being disposed opposite one another in a third direction, one end of said first drive section in a first direction and one end of said second drive section in a first direction defining said second fixed end, said third drive section being connected between the other end of said first drive section in a first direction and the other end of said second drive section in a first direction, said second mating portion being between said first drive section and said second drive section, said hanging slot being open at both ends in said third direction, said third drive section defining said first fixed end, wherein said third direction is perpendicular to both said second direction and said first direction.

27. The retraction assembly according to claim 26 wherein a bottom wall of said hanging slot is formed as an arcuate surface that arches away from said second fixed end.

28. The telescopic assembly of any one of claims 24-27, wherein the mounting base is provided with a resilient clip;

the flexible assembly further comprises a flexible circuit board, the flexible circuit board comprises a first flexible portion, the second fixed end is fixed to the first flexible portion and is electrically connected with the flexible circuit board, and the integral structure formed by the first flexible portion and the second fixed end is clamped to the elastic clamp.

29. The retraction assembly according to any one of claims 24 to 28 further including a second actuation structure, said second actuation structure being a shape memory alloy member, said second actuation structure having opposed third and fourth fixed ends along a first direction, said third fixed end being provided to said slider and said fourth fixed end being provided to said mounting base;

the fourth fixed end is positioned on one side of the third fixed end far away from the second fixed end along the first direction, and the second fixed end is positioned on one side of the first fixed end far away from the fourth fixed end;

The deformation state of the second driving structure is opposite to that of the first driving structure.

30. The retraction assembly according to any one of claims 1 to 29 further comprising a hall sensor and a magnet;

the Hall sensor is relatively fixed with the mounting seat, and the magnet is relatively fixed with the sliding piece;

the Hall sensor is used for sensing magnetic field changes of the magnet so as to detect the sliding distance of the sliding piece relative to the mounting seat in a first direction.

31. A drive motor, comprising:

a support base;

the first carrier is arranged on the supporting seat;

the first driving assembly is used for driving the first carrier to rotate around a first axis relative to the supporting seat;

the telescopic assembly of any one of claims 1-30, being between the first carrier and the support base, the telescopic assembly being secured to the support base by the mounting base, the resilient deformation applying a resilient force directed towards the first carrier to the follower, the follower moving to switch between a braking condition in abutting engagement with the first carrier and an unlocking condition in disengagement from the first carrier.

32. A camera module, comprising:

an optical path turning element;

the optical lens is positioned on the light-emitting side of the light path turning element;

the photosensitive device is positioned on the light emitting side of the optical lens;

the drive motor of claim 31, said optical path turning element being fixed to said first carrier.

33. An electronic device, comprising:

a screen;

a back shell fixed with the screen;

the camera module of claim 32, the camera module being housed within the back shell;

the first circuit board is accommodated in the back shell and is electrically connected with the camera module.