Piezoelectric actuator and periscope camera module thereof

Abstract

The present invention discloses a piezoelectric actuator and a periscope camera module thereof, comprising: an outer frame; a carrier; a pre-pressure actuating assembly; and a supporting assembly; wherein a first supporting portion and a second supporting portion are respectively arranged on opposite sides of the carrier, the first supporting portion is arranged on one side of the carrier in contact with the pre-pressure actuating assembly, and the first supporting portion is tightly fitted between the outer frame and the carrier, and the second supporting portion is arranged on the other side of the carrier that is not in contact with the pre-pressure actuating assembly and is loosely fitted between the outer frame and the carrier. The present invention adopts a side-driven driving scheme to solve the driving problems of the existing periscope camera module caused by technological iteration, and solves the lens carrier offset problem caused by its driving scheme. In addition, the tightly fitted first supporting portion and the pre-pressure actuating assembly are arranged on the same side of the carrier to prevent the carrier from tipping over, and the loosely fitted second supporting portion is arranged on the other side of the carrier to straighten the tipped-over carrier.

Description

Technical Field

[0001] The present invention relates to a periscope camera module, and in particular to a periscope camera module using a piezoelectric motor. Background Art

[0002] With the improvement of living standards, users' requirements for the camera functions of mobile terminal devices are also constantly increasing, including the demand for telephoto, which requires the ability to clearly capture distant scenes, such as long focusing distance and high focusing accuracy.

[0003] In order to achieve the above-mentioned telephoto function, the terminal device usually adopts a periscope camera module, and uses its motor to drive the lens to move to achieve the basic functions of focus and zoom, so as to obtain clear images of distant subjects. However, with the improvement of user demand, the parameter specifications of the periscope lens are constantly required to be iterated, and the corresponding lens size and weight are constantly increasing. Therefore, the thrust and stroke requirements of the motor that drives the lens to move are gradually increasing, and further requirements are also put forward for focusing accuracy. Due to the increase in thrust requirements, the size of the motor itself is gradually increasing, which in turn hinders the realization of lightweight and thinning in the iteration of periscope camera module technology. The existing driving scheme uses an electromagnetic motor, but it has problems such as short stroke, large size, and electromagnetic interference, which can no longer meet the technical requirements of periscope camera modules in future mobile phone cameras.

[0004] In addition, when a new driving method is needed for periscope or long-stroke camera modules, such as piezoelectric and other friction contact actuation methods, a new motor architecture is needed to prevent or reduce the risk of the motor causing the lens carrier to deviate or deviate from the photosensitive path, and avoid affecting the focus effect of the camera module under longer strokes. At the same time, the new motor architecture must also consider the adverse effects on the carrier's motion state when designing, to prevent the carrier from tipping over or getting stuck during movement, causing the periscope camera module to fail to work properly. Summary of the invention

[0005] On the one hand, the present application describes a side-driven piezoelectric motor and a periscope camera module thereof, comprising a driving member, a pre-pressing member and a supporting member assembled between an outer frame and a carrier. The pre-pressing member applies a pre-pressure perpendicular to the optical axis to the driving member, so that the driving member abuts against the carrier and maintains frictional contact, so as to drive the carrier to drive the lens to move. The supporting member comprises a first supporting portion, and the first supporting portion and the second supporting portion are arranged on the upper and lower sides of the driving member in the height direction.

[0006] On the other hand, the present application describes a periscope camera module for preventing a carrier from tipping over, comprising a pre-pressing actuation assembly, a first support portion, and a second support portion provided on one side of an outer frame. The first support portion is provided on the same side as the pre-pressing actuation assembly, and the first support portion is tightly fitted between the outer frame and the carrier, the second support portion is loosely fitted between the outer frame and the carrier, and the second support portion is provided on the opposite side of the pre-pressing actuation assembly.

[0007] On the other hand, the present application describes a periscope camera module that prevents a carrier from shifting up and down, including a magnetic component and a support member, the magnetic component including a magnetic component portion relatively arranged at the bottom of the outer frame and the bottom of the carrier, the support member including a first support portion and a third support portion relatively arranged at the left and right sides of the bottom of the outer frame and the bottom of the carrier in the width direction.

[0008] On the other hand, the present application also describes a periscope camera module using piezoelectric drive, including a pre-stressing actuator assembly assembled between an outer frame and a carrier, which includes a driving member and a pre-stressing member, the pre-stressing member abuts the driving member against one side of the carrier, the driving member has at least one friction head and the friction head is frictionally transmitted with one side of the carrier through its own vibration or piezoelectric braking to drive the carrier to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 Schematic diagram of the overall structure of the periscope camera module provided in an embodiment of the present invention (the light deflection module and the fixed lens are not shown).

[0010] Figure 2 for Figure 1 A magnified view of the structure at A.

[0011] Figure 3 A schematic diagram of the overall structure of a periscope camera module provided in another embodiment of the present invention (the light deflection module and the fixed lens are not shown).

[0012] Figure 4 A schematic diagram of the installation of a pre-pressing actuating component with the conductive component removed provided in another embodiment of the present invention (the light deflection module and the fixed lens are not shown).

[0013] Figure 5 A top view of the overall structure of the periscope camera module provided in an embodiment of the present invention (the light deflection module and the fixed lens are not shown).

[0014] Figure 6 for Figure 5 AA section view.

[0015] Figure 7 for Figure 6 Enlarged view of the structure at B.

[0016] Figure 8 for Figure 6 Enlarged view of the structure at location C.

[0017] Fig. 9 for Figure 6 Enlarged view of the structure at D.

[0018] Fig.10 for Figure 6 Enlarged view of the structure at E.

[0019] Fig.11 A top view of the overall structure of a periscope camera module provided in another embodiment of the present invention (the light deflection module and the fixed lens are not shown).

[0020] Fig.12 for Fig.11 FF cross-sectional view.

[0021] Fig.13 for Fig.11 GG cross-sectional view.

[0022] Fig.14 for Fig.12 Enlarged view of the structure at H.

[0023] Fig.15 for Fig.12 Enlarged view of the structure at location I.

[0024] Fig.16 for Fig.12 Enlarged view of the structure at J.

[0025] Fig.17 for Fig.13 Enlarged view of the structure at K.

[0026] Fig.18 This is a schematic diagram of the overall structure of a periscope camera module with the outer frame removed provided by one embodiment of the present invention.

[0027] Fig.19 A bottom view of the overall structure of a periscope camera module with the outer frame removed provided by one embodiment of the present invention.

[0028] Fig. 20 A schematic structural diagram of a carrier and a supporting assembly provided in one embodiment of the present invention.

[0029] Fig.21 A stereoscopic assembly diagram of a pre-stressed actuator assembly, a yoke, and metal parts in a periscope camera module with the outer frame removed provided in another embodiment of the present invention.

[0030] Fig. 22An exploded view of the assembly of a pre-stressed actuator component, a yoke and metal parts in a periscope camera module with the outer frame removed provided in another embodiment of the present invention.

[0031] Fig.23 A schematic diagram of the assembly of a pre-stressed actuating assembly, a yoke and metal parts in a periscope camera module with the outer frame removed provided in another embodiment of the present invention.

[0032] Fig.24 This is a schematic structural diagram of a carrier and a supporting assembly provided in another embodiment of the present invention.

[0033] Fig.25 This is a schematic structural diagram of a carrier and a magnetic magnet provided in another embodiment of the present invention.

[0034] Fig.26 This is a schematic structural diagram of a carrier and a magnetic magnet provided in the third embodiment of the present invention.

[0035] Fig. 27 This is a schematic diagram of the overall structure of a periscope camera module with the outer frame removed provided in the fourth embodiment of the present invention.

[0036] Fig.28 A bottom view of the overall structure of the periscope camera module with the outer frame removed provided in the fourth embodiment of the present invention.

[0037] Fig.29 This is a stereoscopic diagram of the overall structure of the periscope camera module with the outer frame removed provided in the fourth embodiment of the present invention.

[0038] Fig.30 A stereoscopic diagram of the overall structure of the periscope camera module with the outer frame removed provided in the fourth embodiment of the present invention from another viewing angle.

[0039] Fig.31 A schematic diagram of a planar spring structure provided by an embodiment of the present invention.

[0040] Fig.32 A schematic diagram of a spring structure provided in another embodiment of the present invention.

[0041] Fig.33 This is a schematic diagram of the spring structure provided in the third embodiment of the present invention.

[0042] Fig.34 A schematic diagram of a yoke structure provided in one embodiment of the present invention.

[0043] Among them, 100, outer frame; 110, first side wall; 111, drive member installation area; 112, first abutment surface; 120, second side wall; 121, second abutment surface; 200, carrier; 210, lens carrier; 211, first carrier side wall; 2111, third abutment surface; 212, second carrier side wall; 2121, fourth abutment surface; 213, contact position; 214, friction plate; 215, damping member; 216, sensing magnet groove; 300, pre- Pressure actuation assembly; 310, driving member; 311, friction head; 312, piezoelectric vibrator; 320, pre-pressing member; 321, spring; 3211, fixing part; 32111, first fixing end; 32112, second fixing end; 32113, third fixing end; 32114, first fixing part; 32115, second fixing part; 3212, elastic part; 32121, first elastic part; 32122, second elastic part; 32123, hollow structure; 32 13, bending part; 32131, first bending part; 32132, second bending part; 322, clamping piece; 400, supporting assembly; 410, first supporting part; 411, first ball; 412, second ball; 420, second supporting part; 421, third ball; 422, fourth ball; 423, top guide rod; 430, third supporting part; 431, fifth ball; 432, sixth ball; 440, L-shaped guide groove; 450, U-shaped guide groove; 46 0. Oblique side wall guide groove; 470. Pressing fitting; 480. Metal part; 500. Optical component; 510. Light deflection module; 520. Lens; 600. Magnetic component; 610. Magnetic magnet; 620. Magnetic yoke; 621. Plane section; 622. Bending section; 6211. Projection area; 6212. Connection area; 623. Edge section; 700. Conductive component; 800. Position sensing component; 810. Position sensing element; 820. Position sensing magnet. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0045] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0046] like Figures 1 to 34 As shown, the periscope camera module according to the embodiment of the present application is illustrated, which includes an outer frame 100, a carrier 200, a pre-pressure actuation assembly 300 and a support assembly 400. The outer frame 100 has at least one light inlet and one light outlet, and the light inlet and the light outlet are used to allow light to enter and exit. The carrier 200 moves along an axial direction in the outer frame 100, and the axial direction is consistent with or parallel to the optical axis direction of the optical element (such as a lens or a lens) carried by the carrier 200. Reference Figure 1 , Figure 3 and Figure 4 As shown, the outer frame 100 includes a bottom entity extending along the optical axis direction and two side entities extending vertically upward from both sides of the bottom entity. The pre-pressure actuation assembly 300 is assembled on one side entity of the outer frame 100. The pre-pressure actuation assembly 300 abuts against and drives the carrier 200 from the side to move the carrier 200 along the optical axis direction, thereby realizing the zoom and / or focus function of the periscope camera module. The support assembly 400 is correspondingly assembled between the opposite surfaces of the outer frame 100 and the carrier 200, providing a more stable support for the carrier 200 to always move along the optical axis direction. The support assembly 400 can also reduce the risk of deviation, tilt or even jamming that may occur during the movement of the carrier 200.

[0047] The periscope camera module described in the embodiment of the present application further includes an optical component 500, which includes a fixed optical component and a movable optical component arranged along the light propagation path, the fixed optical component and the movable optical component respectively include at least one lens 520, the fixed optical component is arranged on the outer frame 100, and the movable optical component is arranged on the carrier 200. In some embodiments, as Figure 1 , Figure 3 and Figure 4 As shown, the light enters through the opening on the light incident side of the outer frame 100, passes through the fixed optical component and the movable optical component in sequence along the optical axis, and then exits from the opening on the light emitting side of the outer frame 100. The light entering side of the outer frame 100 is the light incident side, and the light exiting side of the outer frame 100 is the light emitting side.

[0048] In addition, the periscope camera module also includes a photosensitive module (not shown in the figure) and a light deflection module 510. The light deflection module 510 changes the direction of the incident light and makes the deflected light pass through the fixed optical component and the movable optical component in sequence, and finally converges to the photosensitive module, which receives the light and forms an image.

[0049] In a specific example of the present application, the light deflection module 510 is installed on the light incident side of the outer frame 100 , and the photosensitive module is assembled on the light emitting side of the outer frame 100 .

[0050] The photosensitive module includes a photosensitive component and a filter component. The filter component is arranged between the optical component 500 and the photosensitive component and is located on the photosensitive path of the photosensitive component, and is used to filter the light before entering the photosensitive component. The photosensitive component is arranged on the light-emitting side of the outer frame 100. The filter component includes a filter element and a filter element bracket. The filter element bracket is located between the filter element and the light-emitting side of the outer frame 100 or between the filter element and the carrier 200, so that the filter element is located on the photosensitive path. Specifically, the photosensitive component is implemented as a circuit board and a photosensitive chip and electronic components mounted on the circuit board.

[0051] As users' demands for module camera functions are increasing, the size of the drive motor is also increasing due to long stroke and high thrust. Therefore, it is necessary to develop motor devices with high thrust and small size and corresponding new periscope camera module drive architecture. Among them, piezoelectric motor is a cutting-edge but potential camera motor solution with advantages such as high thrust, small size, low power consumption, fast response and no magnetic interference.

[0052] The present application proposes a new driving architecture of a periscope camera module, in which the pre-pressure actuator assembly 300 applies pre-pressure to the carrier 200 from the side wall of the carrier 200 in a direction perpendicular to the optical axis, so that the carrier 200 maintains frictional contact with the pre-pressure actuator assembly 300 and drives the carrier 200 to move in the direction of the optical axis, that is, the carrier 200 is driven to move by frictional contact. In some optional embodiments, a magnetic attraction force is generated between a magnetic attraction member (such as a magnetic magnet 610) located on the carrier 200 and a magnetic yoke 620 located on the outer frame 100, and the magnetic attraction member and the magnetic yoke 620 form a magnetic attraction structure located on the bottom side of the carrier 200. The magnetic attraction structure can generate a magnetic attraction force to ensure that the carrier 200 does not produce a large deviation during the long-stroke movement. At the same time, the magnetic attraction structure located on the bottom side can avoid the superposition of pre-pressure and magnetic attraction force, which will not produce too much driving burden on the pre-pressure actuator assembly 300.

[0053] In a specific example of the present application, the outer frame 100 extends from the left and right side edges of the light incident side parallel to the optical axis direction to form two side walls, at least one pre-pressure actuating assembly 300 is assembled on one of the side walls of the outer frame 100, the side wall of the outer frame 100 is set as the first side wall 110 of the outer frame 100, and the other side wall opposite to the first side wall 110 of the outer frame 100 is set as the second side wall 120 of the outer frame 100. Similarly, the two side walls of the carrier 200 opposite to the first side wall 110 and the second side wall 120 of the outer frame 100 are correspondingly set as the first carrier side wall 211 and the second carrier side wall 212 of the carrier 200.

[0054] Among them, Figure 4As shown, the outer frame 100 has a driver installation area 111 for assembling the pre-pressing actuating assembly 300 on the first side wall 110. In some specific embodiments, the driver installation area 111 of the first side wall 110 of the outer frame 100 can be implemented as a through hole located on the first side wall 110 of the outer frame 100, which is used to assist in the installation of the pre-pressing actuating assembly 300. The shape of the through hole on the first side wall 110 of the outer frame 100 corresponds to the outer contour shape of the driver 310 of the pre-pressing actuating assembly 300, and the size of the through hole is slightly larger than the outer contour shape size of the driver 310.

[0055] More specifically, a mounting groove with a diameter slightly larger than that of the through hole is provided on the outer surface of the first side wall 110 of the outer frame 100 along the outer periphery of the through hole for locating the installation position of the pre-stressing actuating assembly 300 from the outside so as to install the pre-stressing actuating assembly 300 .

[0056] In a specific example of the present application, the carrier 200 moves within the space of the outer frame 100 and carries the mobile optical assembly, wherein the mobile optical assembly includes at least one optical lens, and the movement of the carrier 200 drives the mobile optical assembly to move, so as to realize the focus and / or zoom function of the periscope camera module. In some optional embodiments, the mobile optical assembly includes two optical lenses, and the number of the carriers 200 corresponds to the number of the optical lenses. For example, the carrier 200 is implemented as two mobile carriers, and the two mobile carriers respectively drive two optical lenses 520 to move along the optical axis direction to realize the zoom and focus functions.

[0057] Specifically, the carrier 200 is implemented as a lens carrier 210 having a first carrier side wall 211 and a second carrier side wall 212. The lens carrier 210 is implemented as a first mobile carrier and a second mobile carrier respectively carrying an optical lens 520. The first mobile carrier and the second mobile carrier both have a first carrier side wall 211 and a second carrier side wall 212. The first mobile carrier and the second mobile carrier can be implemented as a split structure or a parent-child structure. When implemented as a split structure, the first mobile carrier and the second mobile carrier can be driven to move along the optical axis direction respectively to achieve the functions of zooming and focusing; when implemented as a parent-child structure, the second mobile carrier can be movably arranged on the first mobile carrier, and the first mobile carrier drives the second mobile carrier to move along the optical axis direction to achieve the functions of zooming and focusing.

[0058] Furthermore, the carrier 200 further includes damping members 215 located at the light incident side and the light emitting side, that is, the carrier 200 has damping members 215 at both the front and rear ends along the optical axis direction. Fig.24 , Fig.29 and Fig.30As shown, the front and rear ends of the carrier 200 along the optical axis are both provided with mounting grooves for mounting the damping member 215, and the damping member 215 has a convex portion for inserting into the mounting groove, that is, a snap-fit ​​structure is formed between the damping member 215 and the mounting groove to realize the installation of the damping member 215 on the lens carrier 210. When the carrier 200 moves along the optical axis, the damping member 215 can realize the functions of limiting and buffering, avoiding collision between the carrier 200 and the outer frame 100, and also avoiding the generation of sound due to collision. Among them, glue can also be injected between the convex portion of the damping member 215 and the mounting groove to assist installation.

[0059] Furthermore, since the damping member 215 is elastic, the size of the protrusion of the damping member 215 can be slightly larger than the size of the installation groove. The protrusion of the damping member 215 has a partial extrusion deformation when inserted into the installation groove to prevent the damping member 215 from falling off after impact.

[0060] Specifically, the damping element 215 is an elastic material component, and can be implemented as a polyurethane, silicone, epoxy or polymer material component.

[0061] In some specific embodiments, the carrier 200 further includes a friction plate 214 in frictional contact with the pre-pressing actuating assembly 300, so as to generate friction between the pre-pressing actuating assembly 300 and the friction plate 214 of the carrier 200 to drive the carrier 200 to move. Figure 4 , Figure 6 and Fig.13 As shown, the friction plate 214 corresponds to the driving member 310 of the pre-pressure actuating assembly 300 , and is extended on the first carrier side wall 211 of the carrier 200 along a direction parallel to the optical axis.

[0062] Specifically, the friction plate 214 is assembled between the carrier 200 and the pre-pressing actuating assembly 300. The friction plate 214 is implemented as an integral structure on the first carrier side wall 211 of the carrier 200, for example, the friction plate 214 and the first carrier side wall 211 are integrally formed by an insert molding process; it can also be implemented as a split structure provided on the first carrier side wall 211 of the carrier 200, for example, the friction plate 214 is connected to the carrier 200 by an adhesive. It should be understood that the friction plate 214 can increase the friction between the carrier 200 and the pre-pressing actuating assembly 300.

[0063] The friction plate 214 is made of a metal oxide plate such as zirconium oxide or aluminum oxide.

[0064] More specifically, refer to Figure 6 and Fig.13As shown, the friction contact position 213 between the friction plate 214 and the pre-pressing actuating assembly 300 is located at the first carrier side wall 211 of the carrier 200. Before the driving member 310 drives the carrier 200, the pre-pressing member 320 applies a pre-pressure to the pre-pressing actuating assembly 300 to abut against the friction plate 214 of the carrier 200, so as to ensure that the friction head 311 of the pre-pressing actuating assembly 300 is frictionally connected with the friction plate 214.

[0065] It should be noted here that the friction contact position 213 mentioned in the previous and later texts refers to the position where the pre-stressing actuator assembly 300 or the first support part 410 or the second support part 420 or the third support part 430 mentioned in the later text and other elements constituting the support assembly 400 come into contact with the carrier 200 or the outer frame 100. The contact may be surface friction or point friction, rolling friction or sliding friction, but due to its uncertainty, it is not clearly shown in the figure.

[0066] like Figure 5-6 As shown, in the above-mentioned periscope camera module, the carrier 200 is mainly subjected to the pre-pressure along the third axis X direction (i.e., the width direction of the outer frame 100 or the carrier 200), the magnetic attraction along the first axis Z direction (i.e., the height direction of the outer frame 100 or the carrier 200), and the driving force along the second axis Y direction (i.e., the length direction of the outer frame 100 or the carrier 200, parallel to the optical axis). It should be understood that since the piezoelectric vibrator 312 of the driving member 310 causes the friction head 311 to move by vibration deformation, and when the piezoelectric vibrator 312 vibrates and deforms, the angle at which the friction head 311 abuts against the carrier 200 changes accordingly, which causes the force generated between the friction head 311 and the carrier 200 to not always be parallel to the optical axis direction, and the direction of the force has a certain inclination relative to the plane where the side wall of the carrier 200 is located, and the action of the inclined force may cause the carrier 200 to tilt.

[0067] Furthermore, the pre-pressing member 320 provides a pre-pressure for the driving member 310, and the direction of the pre-pressure is perpendicular to the side wall of the carrier 200 along the first axis Z direction. However, due to the vibration deformation of the piezoelectric vibrator 312, the angle at which the friction head 311 abuts against the carrier 200 changes accordingly, resulting in the direction of the pre-pressure not always acting perpendicularly on the side wall of the carrier 200, but the direction of the pre-pressure has a certain inclination relative to the plane where the side wall of the carrier 200 is located. At the same time, the piezoelectric vibrator 312 of the pre-pressure actuator assembly 300 drives the friction head 311 to move through vibration deformation. The pre-pressing member 320 will be deformed due to the vibration deformation of the piezoelectric vibrator 312, and the direction of the pre-pressure generated by it will also be inclined relative to the plane where the side wall of the carrier 200 is located, making it possible for the carrier 200 to tilt or even overturn.

[0068] In a specific example of the present application, the pre-stress actuation assembly 300 extends along a direction parallel to the optical axis and is distributed on the first side wall 110 of the outer frame 100, and a pre-stressing member 320 of the pre-stress actuation assembly 300 applies a pre-stressing force perpendicular to the optical axis direction along a direction from the first carrier side wall 211 of the carrier 200 toward the second carrier side wall 212, so as to ensure that the carrier 200 always maintains frictional contact with the pre-stress actuation assembly 300, thereby driving the carrier 200 to move along the optical axis direction relative to the outer frame 100 to achieve focusing and zooming functions.

[0069] Specifically, when performing focusing and zooming operations, the first carrier side wall 211 of the carrier 200 is subjected to a preload perpendicular to the optical axis direction applied by the preload actuator assembly 300. In addition, during the movement, the carrier 200 may also tend to deviate toward the second side wall 120 of the outer frame 100, and produce an up-and-down deviation on the bottom surface of the outer frame 100. In order to prevent these deviations and ensure that the carrier 200 always moves smoothly along the optical axis direction during the entire focusing and zooming process, the support assembly 400 is carefully designed and assembled between the carrier 200 and the outer frame 100 to provide necessary support and guidance.

[0070] Since the pre-stressed actuator assembly 300 is driven on the side of the carrier 200, the pre-stressed member 320 provides a pre-stressed force perpendicular to the first carrier side wall 211 of the carrier 200, so a part of the support members in the support assembly 400 needs to support the carrier 200 on the side of the carrier 200, which can avoid the excessive friction caused by the surface friction between the carrier 200 and the outer frame 100, and on the other hand, the parallelism of the movement of the carrier 200 can be improved by configuring the support members (such as balls) and the linear grooves. If the support members are placed on the opposite side (i.e., the second side) of the pre-stressed actuator assembly 300 under the action of the pre-stressed force, there will be a problem that the overturning moment of the carrier 200 is large due to the excessively long force arm, and the carrier 200 is more likely to tilt. In the state where the pre-stressed actuator assembly 300 is not powered on, the straight-line distance from the support member to the friction contact position 213 is the overturning force arm of the carrier 200.

[0071] Specifically, when the driving member 310 is not powered on, the straight-line distance from the friction head 311 of the driving member 310 to the supporting member is the force arm x of the driving force. According to the formula M=Fx, when x is larger, that is, when the driving member 310 is not powered on, the straight-line distance between the friction head 311 and the supporting member is greater, the overturning moment M is greater. When the carrier 200 is driven to move along the optical axis, the carrier 200 is more likely to tilt, thereby increasing the risk of the carrier 200 getting stuck and unable to move further.

[0072] In addition, when the support member is implemented as a ball or other support member that is in point friction contact with the carrier 200 but has an uncertain motion state, taking a ball as an example, when the ball is assembled between the carrier 200 and the outer frame 100, its motion state is uncertain, and the ball can switch the motion state of rolling or sliding at will, so the ball may be stuck in its assembly groove during the movement of the carrier 200, which may also cause the carrier 200 to tilt or even overturn. When the support component 400 is implemented as multiple balls, the balls are in point contact with the outer frame 100 and the carrier 200 on both sides. If the carrier 200 tilts, one of the balls of the support component 400 may not be in contact with the outer frame 100 and the carrier 200 at the same time, which may cause the carrier 200 and the ball to be stuck, the carrier 200 and the ball to be separated, etc., and then the carrier 200 cannot continue to move. On this basis, considering the size of the movable space at the ball assembly location, the manufacturing tolerance of the outer frame 100 and the carrier 200 and the assembly tolerance therebetween may also cause the carrier 200 to tilt or get stuck.

[0073] More specifically, the support assembly 400 is implemented as a plurality of support members, wherein at least one of the support members is assembled between the first side of the outer frame 100 and the first side of the carrier 200, and at least another of the support members is assembled between the second side of the outer frame 100 and the second side of the carrier 200. In other words, at least one of the support members is assembled between the inner side wall of the outer frame 100 on which the pre-pressing actuating assembly 300 is arranged and the outer side wall of the carrier 200 opposite thereto, and at least another of the support members is assembled between the outer side wall of the outer frame 100 on which the pre-pressing actuating assembly 300 is not arranged. Between the other inner side wall of the outer frame 100 and the other outer side wall of the carrier 200 opposite thereto, that is, at least one of the support members is assembled between the first side wall 110 of the outer frame 100 and the first carrier side wall 211 of the carrier 200, and at least another of the support members is assembled between the second side wall 120 of the outer frame 100 and the second carrier side wall 212 of the carrier 200, so that the left and right sides of the left and right side walls and / or the bottom surface of the carrier 200 parallel to the optical axis direction are supported by the support members, thereby ensuring that the carrier 200 always moves along the optical axis direction. In some optional embodiments, at least two of the support members are assembled on both sides of the friction contact position 213 between the pre-pressing actuating assembly 300 and the carrier 200 in the height direction (i.e., along the thickness direction of the outer frame 100), so that when the carrier 200 moves in the optical axis direction, the deviation or even jamming of the carrier 200 in the horizontal plane and in the height direction during zooming and focusing is reduced.

[0074] In a specific example of the present application, the support assembly 400 includes a first support portion 410 and a second support portion 420, each of the first support portion 410 and the second support portion 420 having at least one support member, the first support portion 410 being disposed on the first side wall 110 of the outer frame 100 on which the preload actuation assembly 300 is disposed, and the second support portion 420 being disposed on the second side wall 120 of the outer frame 100 corresponding to the first side wall 110, as shown in FIG. Figure 6 and Fig.12 As shown, under the action of pre-pressure, the first support portion 410 is clamped at the bottom of the first side wall 110 of the outer frame 100 and the bottom of the first carrier side wall 211 of the carrier 200, and the second support portion 420 is clamped at the top of the second side wall 120 of the outer frame 100 and the top of the second carrier side wall 212 of the carrier 200, thereby supporting the carrier 200.

[0075] Preferably, the first support portion 410 and the second support portion 420 are assembled on the upper and lower sides of the contact position 213 between the pre-stressed actuating assembly 300 and the carrier 200 in the height direction (i.e., along the thickness direction of the outer frame 100), and the distance from the first support portion 410 to the contact position 213 along the above-mentioned height direction is equal to or similar to the distance from the second support portion 420 to the contact position 213 along the above-mentioned height direction (the difference does not exceed 20%), so that the first support portion 410 and the second support portion 420 are arranged as symmetrically as possible relative to the optical axis in the height direction, so as to provide the carrier 200 with a supporting force that is as symmetrical as possible, and reduce the risk of overturning of the carrier 200 without structural interference.

[0076] Specifically, according to the calculation formula of the torque M=Fx, M is the overturning torque, F is the pre-pressure vector, and x is the lever arm of the pre-pressure, that is, the straight-line distance from the friction contact position 213 between the pre-pressure actuating assembly 300 and the carrier 200 to the second support portion 420 when the pre-pressure actuating assembly 300 is not powered on (the straight-line distance between the first support portion 410 and the friction contact position 213 approaches zero). When the pre-pressure F value is constant, the overturning torque M increases with the increase of the lever arm x. When the x value is larger, that is, the distance from the contact position 213 between the pre-pressure actuating assembly 300 and the carrier 200 to the second support portion 420 is farther, the overturning torque M is larger, and the carrier 200 is more likely to tilt when moving along the optical axis, thereby increasing the risk of the carrier 200 being stuck. Therefore, the x value can be controlled by controlling the straight-line distance between the second support portion 420 and the contact position 213, thereby controlling the overturning torque M.

[0077] Correspondingly, the first side wall 110 of the outer frame 100 and the first carrier side wall 211 of the carrier 200 each have at least two abutting surfaces abutting against the first supporting portion 410, and the second side wall 120 of the outer frame 100 and the second carrier side wall 212 of the carrier 200 each have at least one abutting surface abutting against the second supporting portion 420. Figure 8 , Fig. 9 , Fig.14 and Fig.15 As shown, the abutting surface of the first support portion 410 or the second support portion 420 includes at least a vertical surface perpendicular to the pre-pressure direction, namely the first abutting surface 112 and the second abutting surface 121, so as to provide abutting support for the first support portion 410 or the second support portion 420 under the pre-pressure.

[0078] In some embodiments, when the first support portion 410 and / or the second support portion 420 is implemented as being composed of two or more support members distributed in sequence along a direction parallel to the optical axis, the assembly areas on the outer frame 100 and the carrier 200 located at the first support portion 410 and the second support portion 420 have assembly grooves corresponding to the support members one by one, and each assembly groove has at least two abutment surfaces arranged opposite to each other, such as Figure 8 , Fig. 9 and Fig.14 As shown, the assembly groove is implemented to have two vertical surfaces and two horizontal surfaces, so that the support member can be abutted and supported from both the vertical direction and the horizontal direction. For example, the first abutting surface 112 on the first side wall 110 of the outer frame 100 and the third abutting surface 2111 on the first carrier side wall 211 of the carrier 200 are both vertical abutting surfaces, and the first support portion 410 is abutted and supported from both horizontal directions, such as Fig.15 As shown, the first abutting surface 112 on the first side wall 110 of the outer frame 100 and the second supporting portion 420 are abutted against each other through an additional structure, and the additional structure is a metal part 480, so as to further adjust the manufacturing tolerance between the first abutting surface 112 on the first side wall 110 of the outer frame 100 and the second supporting portion 420; both the outer frame 100 and the carrier 200 have horizontal abutting surfaces on the upper and lower sides of the first supporting portion 410, and the first supporting portion 410 is abutted and supported from two vertical directions; the second abutting surface 121 on the second side wall 120 of the outer frame 100 and the fourth abutting surface 2121 on the second carrier side wall 212 of the carrier 200 are both vertical abutting surfaces, and the second supporting portion 420 is abutted and supported from two horizontal directions; both the outer frame 100 and the carrier 200 have horizontal abutting surfaces on the upper and lower sides of the second supporting portion 420, and the second supporting portion 420 is abutted and supported from two vertical directions.

[0079] In order to reduce the risk of the carrier 200 tilting, the present application sets the support portion close to the side of the pre-pressing actuating assembly 300 (i.e., the first side) as a tight fit, that is, the first support portion 410 set on the same side as the pre-pressing actuating assembly 300 is the main support member; the support portion away from the side of the pre-pressing actuating assembly 300 (i.e., the second side) is set as a loose fit, that is, the second support portion 420 set on the opposite side of the pre-pressing actuating assembly 300 is an auxiliary support member. Figure 8 , Fig. 9 , Fig.14 and Fig.15 As shown, the first support portion 410 is tightly fitted between the first side wall 110 of the outer frame 100 and the first carrier side wall 211 of the carrier 200, and the second support portion 420 is loosely fitted between the second side wall 120 of the outer frame 100 (or the metal component 480) and the second carrier side wall 212 of the carrier 200, that is, the first support portion 410 is always in abutment with the first abutment surface 112, the third abutment surface 2111 and the horizontal abutment surfaces located on the upper and lower sides of the first support portion 410, and the second support portion 420 always has a certain gap with the second abutment surface 121 (or a side wall of the metal component 480), the fourth abutment surface 2121 and the horizontal abutment surface located on the upper side of the second support portion 420. When the carrier 200 moves along the optical axis, the first support part 410 is used as the main support component. In this way, when the pre-pressure actuator assembly 300 is not powered on, the straight-line distance from the first support part 410 to the above-mentioned contact position 213 is smaller than the straight-line distance from the second support part 420 to the above-mentioned contact position 213. Since the first support part 410 is tightly fitted, the straight-line distance from the above-mentioned contact position 213 to the first support part 410 is the lever arm x corresponding to the overturning moment, so as to reduce the x value and thus reduce the overturning moment M, thereby avoiding the problem of the carrier 200 tilting or even getting stuck.

[0080] The above-mentioned tight fit and loose fit can be implemented by tolerance during assembly, for example, the tolerance between the first support part 410 and the outer frame 100 and the carrier 200 is smaller than the tolerance between the second support part 420 and the outer frame 100 and the carrier 200, for example, the tolerance of the former is 0.01, and the tolerance of the latter is 0.02. That is, the spacing between the first abutting surface 112 and the third abutting surface 2111 is smaller than the spacing between the second abutting surface 121 and the fourth abutting surface 2121, and the spacing between the horizontal abutting surfaces located on the upper and lower sides of the first support part 410 is smaller than the spacing between the horizontal abutting surfaces located on the upper and lower sides of the second support part 420. When the carrier 200 is not tilted, the tightly fitted first support portion 410 provides main support for the carrier 200 to ensure the parallelism of the carrier 200 along the optical axis; when the carrier 200 is tilted, the gap at the loosely fitted second support portion 420 can provide space for the carrier 200 to adjust its position, and when tilted to a certain angle, the second support portion 420 simultaneously abuts against the outer frame 100 and the carrier 200, and in this state cooperates with the first support portion 410 to jointly provide support for the carrier 200, thereby correcting the posture of the carrier 200 and preventing the tilt angle of the carrier 200 from affecting the movement of the carrier 200, reducing the possibility of the carrier 200 being tilted to a certain extent, and helping to improve the imaging quality of the periscope camera module.

[0081] In some optional embodiments, the first support portion 410 or the second support portion 420 may be implemented as a ball or other point-shaped support member, and the first support portion 410 and / or the second support portion 420 respectively include two balls, and the balls are respectively assembled at the front and rear ends of the carrier 200 along the direction parallel to the optical axis, such as Fig.19 , 20 As shown in FIGS. 24 and 25, the first support portion 410 and the second support portion 420 are both implemented as two balls, namely, the first ball 411 and the second ball 412 constituting the first support portion 410 and the third ball 421 and the fourth ball 422 constituting the second support portion 420. Under the action of the pre-pressure, the balls are clamped between the outer frame 100 and the carrier 200 to provide more stable support and movement guidance for the carrier 200.

[0082] In some optional embodiments, the first support portion 410 or the second support portion 420 may be implemented as a guide rod or other surface-supported member, which extends in a direction parallel to the optical axis and is assembled between the outer frame 100 and the carrier 200 to ensure the parallelism and stability of the movement of the carrier 200. Figure 27-30 As shown, the first support portion 410 is implemented as a first rolling ball 411 and a second rolling ball 412 , and the second support portion 420 is implemented as a top guide rod 423 .

[0083] In some specific examples, such as Figure 6 , Figure 8 , Fig. 9 , Fig.12 and Fig.14 As shown, when the first supporting portion 410 and the second supporting portion 420 are implemented as two balls, the corresponding abutting surface of the first side wall 110 of the outer frame 100 and the corresponding abutting surface of the first carrier side wall 211 of the carrier 200 are respectively recessed into the outer frame 100 and into the carrier 200 to form at least one pair of L-shaped guide grooves 440 with opposite opening directions, that is, the first abutting surface 112, the second abutting surface 121, the third abutting surface 2111 or the fourth abutting surface 2121 can be connected to an adjacent horizontal abutting surface to form an L-shaped guide groove 440; Fig.15 as well as Figure 21-23 As shown, a side wall of the metal part 480 can also be connected with an adjacent horizontal abutment surface to form an L-shaped guide groove 440. Under the action of pre-pressure, the four inner walls of each pair of L-shaped guide grooves 440 are simultaneously clamped on the outer side of the ball of the first support part 410, that is, the first abutment surface 112, the third abutment surface 2111 and the horizontal abutment surfaces located on the upper and lower sides of the ball of the first support part 410 are all abutted against the ball of the first support part 410 to achieve a tight fit of the first support part 410; the other three inner walls of the pair of L-shaped guide grooves 440 except the bottom surface are all kept with a certain gap from the ball of the second support part 420, that is, the second abutment surface 121, the fourth abutment surface 2121 and the horizontal abutment surface located on the upper side of the ball of the second support part 420 are all kept with a certain gap from the ball of the first support part 410 to achieve a loose fit of the second support part 420, and to prevent the ball of the first support part 410 or the second support part 420 from loosening or falling off.

[0084] In one embodiment of the present application, the ball size of the first support part 410 on the same side as the pre-pressing actuating assembly 300 is larger than the ball size of the second support part 420 on the opposite side of the pre-pressing actuating assembly 300. It should be understood that the ball of the first support part 410 is located at the bottom of the first side, and the ball of the second support part 420 is located at the top of the second side. Such an arrangement makes it possible for the ball of the first support part 410 to be arranged between the bottom of the first side wall 110 of the outer frame 100 and the bottom of the first carrier side wall 211 of the carrier 200 when the periscope camera module falls or is impacted because it needs to support the entire carrier 200, resulting in a greater force on the ball of the first support part 410, making it easier to form a pit.

[0085] Furthermore, since the first support portion 410 is tightly fitted, that is, the four sides of the ball of the first support portion 410 are in contact with the L-shaped guide groove 440, and the second support portion 420 is loosely fitted, that is, there is a gap between at least one side of the ball of the second support portion 420 and the L-shaped guide groove 440 to alleviate the impact on the ball of the second support portion 420, when the periscope camera module falls or is impacted, the ball of the first support portion 410 is subjected to a greater force and is more likely to form a pit.

[0086] Specifically, the ball size of the first support portion 410 is designed to be larger, so as to disperse the force when the ball of the first support portion 410 is impacted, thereby reducing the degree of the pit generated in the first support portion 410.

[0087] In one embodiment of the present application, the diameter of the ball of the first support portion 410 is 1 mm, and the diameter of the ball of the second support portion 420 is 0.8 mm. Fig.12 , Fig.24 , Fig.25 and Fig.26 It can be seen that the L-shaped guide groove 440 for accommodating the ball of the second support part 420 is formed by the inward and downward depression of the top of the carrier 200. The ball diameter of the second support part 420 is relatively small, which can reduce the side wall thickness of the carrier 200 on the second side, that is, the thickness of the first carrier side wall 211 of the carrier 200, thereby reducing the width dimension of the periscope camera module.

[0088] In other embodiments, the ball size of the second support portion 420 may also be equal to the ball size of the first support portion 410 .

[0089] In some optional embodiments, a metal support is provided on the first side wall 110 of the outer frame 100. The metal support is located at the bottom of the second support portion 420 and supports the second support portion 420 upward on its top surface to provide a support plane for the ball of the second support portion 420 to improve the smoothness of the movement of the second support portion 420 and avoid the formation of pits in the guide groove or debris on the outer frame 100 after the ball is compressed.

[0090] Among them, Figure 6 , Figure 8 , Fig. 9 , Fig.12 , Fig.14 and Fig.15As shown, the spacing between the pair of L-shaped guide grooves 440 clamped on the outer side of the ball of the second support portion 420 is greater than the spacing between the pair of L-shaped guide grooves 440 clamped on the outer side of the ball of the first support portion 410. In some optional embodiments, the horizontal spacing between the pair of L-shaped guide grooves 440 clamped on the outer side of the ball of the second support portion 420 is greater than the horizontal spacing between the pair of L-shaped guide grooves 440 clamped on the outer side of the ball of the first support portion 410, so as to achieve a tight fit of the first support portion 410 and a loose fit of the second support portion 420. Further, the horizontal spacing and vertical spacing between the pair of L-shaped guide grooves 440 clamped on the outer side of the ball of the second support portion 420 are both greater than the horizontal spacing and vertical spacing between the pair of L-shaped guide grooves 440 clamped on the outer side of the ball of the first support portion 410, so as to achieve a loose fit of the second support portion 420, so that the carrier 200 in the tilted state has sufficient adjustment space to avoid getting stuck, so as to ensure the stable movement of the ball in the L-shaped guide groove 440.

[0091] Specifically, two balls constituting the same support portion are located in two pairs of L-shaped guide grooves 440, which are arranged in a direction parallel to the optical axis but are not connected to each other, that is, each ball is located in a pair of L-shaped guide grooves 440 to avoid interference between the two balls.

[0092] The length of the L-shaped guide groove 440 along the optical axis is greater than the diameter of the ball, so that the ball can move along the optical axis in the L-shaped guide groove 440. It should be understood that the longer the length of the L-shaped guide groove 440 along the optical axis, the greater the chance that the ball can roll purely, and the smaller the friction coefficient of pure rolling, so that the friction force on the carrier 200 is smaller, and the movement of the carrier 200 along the optical axis is smoother.

[0093] In some specific examples, the length of the L-shaped guide groove 440 accommodating the first support portion 410 along the optical axis direction may be equal to the length of the L-shaped guide groove 440 accommodating the second support portion 420 along the optical axis direction to ensure a long moving stroke of the carrier 200 .

[0094] Since the carrier 200 moves along the optical axis, in order to ensure that the support assembly 400 is always clamped and does not fall off, Figure 6-7 As shown, a magnetic attraction component 600 is arranged between the carrier 200 and the outer frame 100, so that the carrier 200 is subjected to a magnetic attraction force toward the outer frame 100 during the movement along the optical axis to clamp the support component 400, thereby reducing the offset of the carrier 200 moving along the optical axis and maintaining its parallelism.

[0095] In a specific example of the present application, the magnetic attraction component 600 is implemented to be located between the bottom of the carrier 200 and the bottom of the outer frame 100, and the magnetic attraction component 600 includes a magnetic attraction magnet 610 and a yoke 620, that is, the magnetic attraction magnet 610 is arranged on one of the carrier 200 and the outer frame 100, and the yoke 620 is arranged on the other of the carrier 200 and the outer frame 100. Preferably, the magnetic attraction magnet 610 is arranged on the bottom surface of the carrier 200, and the yoke 620 is arranged on the outer frame 100 at a position corresponding to the magnetic attraction magnet 610, and the magnetic attraction magnet 610 and the yoke 620 are both extended along the optical axis direction.

[0096] In some specific embodiments, the magnetic attraction component 600 and the first support portion 410 are symmetrically arranged at the bottom of the carrier 200, that is, at least one magnetic attraction magnet 610 and the first support portion 410 are symmetrically arranged at the bottom of the carrier 200 in the width direction. Fig.26 As shown, the magnetic magnet 610 is disposed at the other side of the bottom of the carrier 200 away from the first support portion 410, and the magnetic yoke 620 is correspondingly disposed at the bottom of the side wall of the outer frame 100 that does not have the pre-compression actuator 300. Since the first support portion 410 is tightly fitted to the first side of the outer frame 100 and the first side of the carrier 200, the magnetic attraction component 600 is closer to the second side of the outer frame 100 and the second side of the carrier 200 at the bottom of the carrier 200 in the width direction, and a downward magnetic attraction force is generated on the carrier 200, so that the bottom of the carrier 200 is subjected to downward force on both symmetrical sides in the width direction, so as to ensure the stability of the carrier 200 on the outer frame 100.

[0097] In some optional embodiments, the number of the magnetic magnets 610 is at least two, and at least two of the magnetic magnets 610 are symmetrically distributed on the bottom surfaces of the bottom of the carrier 200 along the width direction and extend in a direction parallel to the optical axis. The magnetic yoke 620 is arranged on the outer frame 100 at a position corresponding to the magnetic magnet 610, that is, on the projection of the magnetic magnet 610 on the outer frame 100, and extends in a direction parallel to the optical axis. Figure 6-7 The two groups of magnetic magnets 610 and yokes 620 shown generate magnetic attraction on both sides of the bottom of the carrier 200. The two groups of magnetic magnets 610 are symmetrically arranged at the bottom of the carrier 200, so that the carrier 200 is subjected to a symmetrical downward magnetic attraction force perpendicular to the optical axis, so as to further reduce the displacement of the carrier 200 during movement and maintain its parallelism of movement. In some optional embodiments, the magnetic attraction component 600 also includes a magnetic magnet 610 arranged on one side wall or both side walls of the carrier 200 and a yoke 620 on the inner side wall of the outer frame 100 at a corresponding position, which is used to generate a magnetic attraction force in the direction of the third axis X to ensure the movement parallelism of the carrier 200.

[0098] In some specific embodiments, at least one magnetic magnet 610 is disposed on one side or two symmetrical sides of the bottom surface of the carrier 200 along the third direction X. Fig.19 , 20 As shown in FIGS. 24 , 25 , 28 and 29 , a magnetic magnet 610 is provided on each side of the bottom surface of the carrier 200 . Specifically, the length of the magnetic magnet 610 is not less than half of the length of the carrier 200 (along the optical axis direction).

[0099] In some embodiments, two magnetic magnets 610 are provided on both sides of the bottom surface of the carrier 200, and the two magnetic magnets 610 on the same side are distributed along the optical axis. The length of each magnetic magnet 610 is not less than one third of the length of the carrier 200 (along the optical axis) to ensure the movement stability of the carrier 200 in the outer frame 100.

[0100] In some specific embodiments, the yoke 620 is disposed at the projection of the magnetic magnet 610 on the outer frame 100 and extends along the optical axis direction, wherein the yoke 620 can be fixed to the outer frame 100 by bonding, clamping, nesting, welding or fastener connection. Specifically, in order to ensure that the carrier 200 is always subjected to a downward magnetic attraction force when moving, the length of the yoke 620 along the optical axis direction is not less than the moving stroke of the carrier 200.

[0101] Preferably, the length of the yoke 620 is not less than the sum of half the length of the carrier 200 along the optical axis and the moving stroke of the carrier 200, so as to avoid the carrier 200 being offset due to the fact that the magnetic attraction force on the carrier 200 is smaller when the carrier 200 moves to one end of the yoke 620 due to the forward or backward setting position of the magnetic magnet 610.

[0102] In some optional embodiments, when the carrier 200 is implemented as two carriers 200 arranged sequentially along the optical axis, the yokes 620 corresponding to the two carriers 200 are located in the same direction parallel to the optical axis or at different positions in a third direction X and both extend along the optical axis.

[0103] Specifically, when the magnetic yokes 620 corresponding to the two carriers 200 are located in the same direction parallel to the optical axis, the magnetic yoke 620 can be implemented as an integral magnetic yoke 620 or two segmented magnetic yokes 620 corresponding to the moving strokes of the two carriers 200 to cover the moving strokes of the two carriers 200.

[0104] In some specific embodiments, the yoke 620 includes a planar segment 621 and an edge segment 623. The planar segment 621 covers the projection of the magnetic magnet 610 on the outer frame 100 and the moving range of the carrier 200, and is used to generate magnetic attraction force between the magnetic magnet 610 on the carrier 200. The edge segment 623 connects the planar segment 621 and the outer frame 100.

[0105] In some optional embodiments, the magnetic attraction component 600 is implemented as a group of the magnetic attraction components 600 and is symmetrically arranged on both sides of the bottom of the carrier 200 with the first support part 410 in the third direction X, and the magnetic attraction magnet 610 is arranged on the other side of the bottom of the carrier 200 away from the first support part 410. The yoke 620 can be implemented to extend to the first support part 410 in the third direction X, or extend to cover the width of the carrier 200, or extend to only cover the projection of the magnetic attraction magnet 610, that is, the planar section 621 of the yoke 620 covers the projection of the magnetic attraction magnet 610, and the edge section 623 of the yoke 620 can be implemented to extend from one side or both sides of the planar section 621 along the third direction X to the first support part 410, or extend to cover the width of the carrier 200, or extend to only cover one side of the bottom surface of the carrier 200.

[0106] Specifically, the width of the magnetic magnet 610 in the third direction X is not less than one quarter of the width of the carrier 200 to ensure that the two sides of the bottom of the carrier 200 are subjected to similar or identical downward forces, thereby preventing the carrier 200 from deflecting.

[0107] In some optional embodiments, Fig.12 and Fig.34 As shown, the yoke 620 also includes a bending section 622 located between the plane section 621 and the edge section 623. The bending section 622 protrudes upward from the opposite sides of the plane section 621 and the edge section 623 to form a supporting surface. The supporting surface supports the first supporting portion 410 upward at the top. At this time, the plane section 621 covers the projection of the magnetic magnet 610 on the outer frame 100 in the width direction and extends to the first supporting portion 410 on one side.

[0108] Specifically, the planar section 621 covers the projection of the magnetic magnet 610 on the outer frame 100 along the third direction X, and is respectively connected to an edge section 623 and a bending section 622 on both sides, and the bending section 622 is connected to another edge section 623 on the other side to cover the bottom surface of the carrier 200, so that the magnetic attraction force on the carrier 200 is more stable.

[0109] Furthermore, the plane segment 621 includes a projection area 6211 and a connection area 6212. Fig.34As shown, the projection area 6211 only covers the projection of the magnetic magnet 610 , and the connection area 6212 connects the projection area 6211 with other sections of the yoke 620 and / or connects two adjacent projection areas 6211 .

[0110] Specifically, when the magnetic magnet 610 is only located on one side of the bottom of the carrier 200 along the third direction X away from the first support portion 410, the projection area 6211 of the plane segment 621 only covers the projection of the magnetic magnet 610 on the outer frame 100 along the third direction X, and the connection area 6212 of the plane segment 621 connects an edge segment 623 and a bending segment 622; when the magnetic magnet 610 is symmetrically arranged on both sides of the bottom of the carrier 200 along the third direction X, the projection area 6211 of the plane segment 621 covers only the projection of the magnetic magnet 610 on the outer frame 100 along the third direction X, and the connection area 6212 of the plane segment 621 connects the projection area 6211 with an edge segment 623 and a bending segment 622, and connects two adjacent projection areas 6211.

[0111] Preferably, the connection area 6212 of the plane segment 621 has a hollow hole to further reduce the mass of the yoke 620 .

[0112] In some embodiments of the present application, the yoke 620 is implemented as a metal material strip that can attract the magnetic magnet 610, that is, it can be mass-produced, and the yoke 620 is cut into the required area after manufacturing to improve manufacturing efficiency. In addition, the yoke 620 has a larger area. The larger the metal pressing area, the more conducive it is to ensure the flatness of the area on the outer frame 100 corresponding to the carrier 200.

[0113] In a specific example of the present application, the support assembly 400 further includes a third support portion 430 assembled between the outer frame 100 and the carrier 200. Under the magnetic attraction of the magnetic attraction assembly 600, the third support portion 430 is clamped between the bottom of the outer frame 100 and the bottom of the carrier 200. Figure 6 and Fig.12 As shown, under the action of magnetic attraction, the first support portion 410 and the third support portion 430 are clamped between the bottom of the outer frame 100 and the bottom of the carrier 200, and are respectively located on both sides of the bottom of the carrier 200. The third support portion 430 and the first support portion 410 are arranged symmetrically with respect to the optical axis along the width direction of the carrier 200 and the outer frame 100 as much as possible (the optical axis direction is the length direction of the carrier 200 and the outer frame 100), so as to provide the carrier 200 with as symmetrical support force as possible, thereby reducing the risk of the carrier 200 being tilted.

[0114] Correspondingly, the second side wall 120 of the outer frame 100 and the second carrier side wall 212 of the carrier 200 each have at least one abutting surface abutting against the third supporting portion 430. Figure 6 and Fig.12 As shown, the abutting surface of the third support portion 430 includes at least two horizontal surfaces perpendicular to the direction of the magnetic attraction force, so as to provide abutting support for the upper and lower sides of the third support portion 430 under the action of the magnetic attraction force.

[0115] Specifically, the third support portion 430 is clamped between the bottom of the second side wall 120 of the outer frame 100 and the bottom of the second carrier side wall 212 of the carrier 200. When the carrier 200 is subjected to pre-pressure and moves along the optical axis, the carrier 200 is mainly supported by the tightly fitted first support portion 410 and the loosely fitted second support portion 420, and maintains movement along the optical axis under the magnetic attraction between the two groups of magnetic magnets 610 and the yoke 620 on both sides of the bottom surface of the carrier 200.

[0116] Among them, in order to reduce the probability of the carrier 200 tilting toward the second side wall 120 of the outer frame 100 under the action of pre-pressure, the third support part 430 has a certain adjustment gap in the direction parallel to the pre-pressure direction, and the third support part 430 has no adjustment gap in the direction of the magnetic attraction force, so that the ball of the third support part 430 is always clamped under the action of the magnetic attraction force, even if its corresponding pair of assembly grooves may be horizontally misaligned under the action of pre-pressure, the ball of the third support part 430 can still move stably in the pair of assembly grooves. The above-mentioned adjustment gap can be implemented by tolerance in the assembly process. For example, the left and right spacing of the pair of assembly grooves of the ball of the third support part 430 is greater than the upper and lower spacing.

[0117] like Figure 6 and Fig.12 As shown, the first support portion 410 and the third support portion 430 are respectively located at the bottom of the first carrier side wall 211 and the bottom of the second carrier side wall 212 of the carrier 200, and the second support portion 420 and the third support portion 430 are respectively located at the top and the bottom of the second carrier side wall 212 of the carrier 200. During the movement of the carrier 200, the first support portion 410 and the second support portion 420 are clamped between the carrier 200 and the outer frame 100 under the action of pre-pressure, providing horizontal support for the carrier 200, and the first support portion 410 and the third support portion 430 are clamped between the carrier 200 and the outer frame 100 under the action of magnetic attraction, providing vertical support for the carrier 200.

[0118] More specifically, the first support portion 410 supports the carrier 200 under the action of the pre-pressure and the magnetic attraction force, so the first support portion 410 needs to be restricted in a direction parallel to the pre-pressure and in a direction parallel to the magnetic attraction force, such as Figure 6 , 8 As shown in Figures 1 and 12, the first support portion 410 needs to be restricted in both the horizontal direction and the vertical direction perpendicular to the optical axis. The second support portion 420 plays a supporting role under the action of pre-pressure, so the second support portion 420 needs to be restricted in the direction parallel to the pre-pressure, and can have a certain movement space in the direction parallel to the magnetic attraction force, that is, the second support portion 420 needs to be restricted in the horizontal direction perpendicular to the optical axis, and can have a certain movement space in the vertical direction perpendicular to the optical axis. The third support portion 430 plays a supporting role under the action of magnetic attraction, so the third support portion 430 needs to be restricted in the direction parallel to the magnetic attraction, and can have a certain movement space in the direction parallel to the pre-pressure, that is, the third support portion 430 needs to be restricted in the vertical direction perpendicular to the optical axis, and can have a certain movement space in the horizontal direction perpendicular to the optical axis.

[0119] In some optional embodiments, the third support portion 430 can be implemented as two balls, which are respectively mounted on the front and rear ends of the carrier 200 along the direction parallel to the optical axis. Under the action of magnetic attraction, the balls are clamped between the outer frame 100 and the carrier 200 to provide more stable support and movement guidance for the carrier 200. Fig.19 As shown, the third supporting portion 430 is implemented as a fifth rolling ball 431 and a sixth rolling ball 432 .

[0120] In some optional embodiments, the third support portion 430 may be implemented as a guide rod having the same structure as the top guide rod 423 implemented as the second support portion 420, and extending in a direction parallel to the optical axis and assembled between the outer frame 100 and the carrier 200 to ensure the parallelism and stability of the movement of the carrier 200.

[0121] In some specific examples, when the third support portion 430 is implemented as two ball bearings, the corresponding abutting surface of the second side wall 120 of the outer frame 100 is recessed into the outer frame 100, and the corresponding abutting surface of the second carrier side wall 212 of the carrier 200 is recessed into the carrier 200, forming at least one pair of V-shaped guide grooves with opposite opening directions or further including a three-sided guide groove with a flat bottom surface, i.e., an inclined side wall guide groove 460. Under the action of magnetic attraction, the top wall and the bottom wall in the inner wall of the inclined side wall guide groove 460 are simultaneously clamped on the outside of the ball bearings of the third support portion 430, thereby preventing the ball bearings of the third support portion 430 from loosening or falling off.

[0122] like Fig.10As shown, the top wall and the bottom wall of each pair of inclined side wall guide grooves 460 clamp the ball of the third support part 430 from the upper and lower sides to ensure that the ball is clamped and stably moves in the inclined side wall guide grooves 460. The horizontal width of the inclined side wall guide grooves 460 is greater than its upper and lower height or its depth. The third support part 430 can have a certain movement space in the direction parallel to the pre-pressure, so that the carrier 200 in the inclined state has enough adjustment space to avoid getting stuck. Fig.12 and 16 As shown, an auxiliary metal part is provided at the bottom of the carrier 200, and the bottom surface of the auxiliary metal part and the top surface of the bent section 622 of the yoke 620 clamp the ball of the third support part 430 from the upper and lower sides, replacing each pair of inclined side wall guide grooves 460 to realize the assembly of the ball of the third support part 430.

[0123] Specifically, the two balls constituting the same support portion are located in two pairs of inclined side wall guide grooves 460, which are arranged in a direction parallel to the optical axis but are not connected to each other, that is, each ball is located in a pair of inclined side wall guide grooves 460 to avoid interference between the two balls.

[0124] In some specific examples, when the third support portion 430 is implemented as a guide rod, the guide rod structure is the same as the top guide rod 423 implemented as the second support portion 420, and the corresponding abutting surface of the second side wall 120 of the outer frame 100 and the corresponding abutting surface of the second carrier side wall 212 of the carrier 200 are respectively recessed downward or upward to form a U-shaped guide groove 450 with an upward or downward opening to assemble the guide rod. A pressing block for pressing the guide rod is provided at the opening of the U-shaped guide groove 450 to prevent the guide rod from tilting in the U-shaped guide groove 450.

[0125] In the specific example of the present application, under the magnetic attraction of the magnetic attraction component 600, the first support portion 410 and the third support portion 430 are respectively clamped on both sides of the bottom of the carrier 200, that is, the magnetic attraction component 600 has a certain degree of inhibitory effect on the tilting tendency of the carrier 200 on the second carrier side wall 212. On this basis, it can be seen from the above that the smaller the overturning arm from the friction head 311 of the driving member 310 to the support component 400, the smaller the overturning moment, and the lower the risk of the carrier 200 overturning.

[0126] Therefore, the present application provides another embodiment, in which the second support portion 420 is also arranged on the first side like the first support portion 410, and is arranged close to the driving member 310, that is, the second support portion 420 is assembled on the top of the first side wall 110 of the outer frame 100 and the top of the first carrier side wall 211 of the carrier 200, so that the first support portion 410 and the second support portion 420 provide corresponding pre-pressure support to the carrier 200 at different heights on the same side, which can eliminate the farther force arm and further reduce the risk of tilting of the carrier 200. In this embodiment, the first support portion 410 is still the main support structure, and the second support portion 420 is the auxiliary support structure, that is, the first support portion 410 is a tight fit, and the second support portion 420 is a loose fit, so as to ensure that the carrier 200 always has a small overturning moment to reduce the risk of tilting of the carrier 200.

[0127] The first support portion 410, the second support portion 420 and the driving member 310 are arranged on the same side, and the first carrier side wall 211 of the carrier 200 has a longer dimension, so there is no significant difference in the support surfaces of the first support portion 410 and the second support portion 420 located on the first carrier side wall 211 of the carrier 200. That is, when the first support portion 410 is implemented as a ball, and the second support portion 420 is implemented as a top guide rod 423 or a ball, the ball spacing of the first support portion 410 and the ball spacing of the second support portion 420 or the effective length of the top guide rod 423 are similar. In this way, the friction contact position 213 between the friction head 311 and the carrier 200 does not need to be eccentric, that is, when the pre-pressure actuator assembly 300 is not powered on, the straight-line distance from the friction contact position 213 to the first support portion 410 and the straight-line distance from the friction contact position 213 to the second support portion 420 are equal, which helps to improve the stability of the carrier 200, and when the carrier 200 is driven to move along the optical axis, the point of action of the friction head 311 on driving the carrier 200 is not easy to move out of the range of the side support surface.

[0128] In this embodiment, the second support portion 420 can be implemented as a ball or a top guide rod 423. When the second support portion 420 is implemented as a ball, the carrier 200 and the outer frame 100 are respectively provided with an L-shaped guide groove 440 to clamp the ball of the second support portion 420 between the L-shaped guide groove 440. Fig. 9As shown, the opening of the L-shaped guide groove 440 of the carrier 200 is along the pre-pressure direction, and the opening of the L-shaped guide groove 440 of the outer frame 100 is facing the opposite direction. The ball of the second support part 420 has an adjustment space perpendicular to the pre-pressure direction in the pair of L-shaped guide grooves 440, and the ball of the second support part 420 is clamped in the pair of L-shaped guide grooves 440 along the left and right directions parallel to the pre-pressure under the action of the pre-pressure. Therefore, when no pre-pressure is applied, the carrier 200 may shake left and right, and the ball of the second support part 420 will be at risk of falling off.

[0129] In order to prevent the second support part 420 from falling off, the second support part 420 is implemented as a top guide rod 423 as an auxiliary support for the first support part 410. The corresponding abutting surface of the first side wall 110 of the outer frame 100 and the corresponding abutting surface of the first carrier side wall 211 of the carrier 200 are respectively recessed downward or upward to form a U-shaped guide groove 450 with an upward or downward opening to assemble the top guide rod 423. Figure 27-30 As shown, the top surface of the first carrier side wall 211 of the carrier 200 is provided with a U-shaped guide groove 450, and the second support portion 420 is implemented as a top guide rod 423, which is placed in the U-shaped guide groove 450, and the two ends of the top guide rod 423 are fixed to the outer frame 100, so that even if no pre-pressure is applied, the carrier 200 is not likely to shake, and the top guide rod 423 will not fall off. In order to enable the top guide rod 423 to abut against the carrier 200 and reduce the gap between the top guide rod 423 and the carrier 200 due to assembly, the top of the U-shaped guide groove 450 is provided with a pressing fitting 470 for pressing the top of the carrier 200 to prevent the top guide rod 423 from tilting in the U-shaped guide groove 450. In one embodiment of the present application, the pressing fitting 470 is installed from top to bottom corresponding to the U-shaped guide groove 450 of the carrier 200, and has a protrusion to abut against the top guide rod 423, and the pressing fitting 470 is fixed to the outer frame 100. In some embodiments, the U-shaped guide groove 450 can also be applied to the case where the first support portion 410 or the second support portion 420 is implemented as a ball.

[0130] like Figure 6As shown, the first support part 410 is arranged on the same side as the pre-pressing actuating assembly 300, that is, the driving member 310 is closer to the first support part 410 with a larger distance between the balls. In this way, on the one hand, the space utilization is more reasonable. This is because the driving member 310 and the pre-pressing member 320 are both extended along the optical axis direction, and the corresponding side wall of the carrier 200 located on the first side also needs to extend along the optical axis direction, that is, the first carrier side wall 211 of the carrier 200 needs to have a certain length, and the first support part 410 is arranged on the bottom surface of the first carrier side wall 211 of the carrier 200, and there can also be a longer space to arrange the two balls of the first support part 410. In contrast, the second carrier side wall 212 of the carrier 200 does not need to be provided with the driving member 310, and it can be set to a shorter length to accommodate the second support part 420 and the third support part 430. This not only makes the overall structure of the periscope camera module more compact, but also helps to reduce the size of the periscope camera module. On the other hand, since the optical focus stroke in the periscope camera module is large, this design also helps the ball bearings to always support the carrier 200 during long strokes.

[0131] Since the pre-pressing actuating assembly 300 applies pressure and force to the friction plate 214 during actual operation, the longer the length of the friction plate 214 is, the longer the driving stroke of the corresponding driving member 310 is, and the corresponding length of the first carrier side wall 211 of the carrier 200 is also longer. Preferably, the length of the second carrier side wall 212 of the carrier 200 is less than the length of the first carrier side wall 211, and there are only balls on the second carrier side wall 212 of the carrier 200. The distance between the balls can be adjusted, and as long as the distance between the two balls of the first supporting portion 410 is large enough, the overall structural balance can be met. Therefore, the second carrier side wall 212 of the carrier 200 does not need to be elongated to have the same length as the first carrier side wall 211.

[0132] More specifically, when the first support portion 410 and the second support portion 420 are implemented as two balls, the ball spacing between the two balls of the first support portion 410 is not less than the ball spacing of the second support portion 420, and the greater the distance between the two balls along the optical axis direction, the more stable the support for the carrier 200.

[0133] In some optional embodiments, Fig.19 , 24As shown in Figures 25, the ball spacing between the two balls of the first support portion 410 is greater than the ball spacing between the two balls of the second support portion 420, and in some preferred embodiments, it is more than 1.5 times. Further, in some optional embodiments, the spacing between the two L-shaped guide grooves 440 clamping the first support portion 410 is more than 1.5 times the spacing between the two L-shaped guide grooves 440 or the U-shaped guide grooves 450 clamping the second support portion 420, wherein the above-mentioned ball spacing and all guide groove spacings are spacings along the direction parallel to the optical axis. When the first support portion 410 and the driving member 310 are arranged on the same side of the first side, and the second support portion 420 is arranged on the second side, the first support portion 410 is arranged at the bottom of the first carrier side wall 211 of the carrier 200, and the second support portion 420 is located at the top of the second carrier side wall 212 of the carrier 200. The first support portion 410 and the second support portion 420 are symmetrically arranged relative to the optical axis in the height direction, and the friction head 311 of the driving member 310 and the friction contact position 213 of the carrier 200 are located on the first carrier side wall 211 of the carrier 200, which is closer to the first support portion 410. Since the ball spacing between the two balls of the first support portion 410 is large, the first support portion 410 provides a larger support range for the carrier 200. When the carrier 200 is driven to move along the optical axis, the friction contact position 213 of the friction head 311 and the carrier 200 is less likely to move out of the support range provided by the first support portion 410, and the carrier 200 is more stably supported. The body 200 is supported in the height direction, which effectively prevents the carrier 200 from tilting or overturning; when the first support part 410, the second support part 420 and the driving member 310 are arranged on the same side, a side support surface located on the first carrier side wall 211 of the carrier 200 is formed between the four balls of the first support part 410 and the second support part 420. Compared with some embodiments in which the ball spacing between the first support part 410 and the second support part 420 is the same, the larger the ball spacing of the first support part 410, the larger the coverage range of the side support surface, and the larger the coverage value range along the direction parallel to the optical axis, so that the friction contact point (i.e., the contact position 213) of the friction head 311 of the driving member 310 on the first carrier side wall 211 of the carrier 200 is always located within the side support surface, thereby preventing the contact position 213 from moving out of the side support surface during the movement of the carrier 200, resulting in insufficient support for the carrier 200 in the pre-compression direction, thereby causing the carrier 200 to tilt.

[0134] Furthermore, when the driving member 310 is not powered on, the contact position 213 between the friction head 311 of the driving member 310 and the carrier 200 is arranged close to the first support portion 410, that is, the straight-line distance from the friction contact position 213 to the second support portion 420 is greater than the straight-line distance from the friction contact position 213 to the first support portion 410. In other words, the height of the friction head 311 of the driving member 310 is arranged as close to the first support portion 410 as possible. Since the ball spacing of the first support portion 410 is greater than the ball spacing of the second support portion 420, the closer the height of the friction head 311 is to the first support portion 410, the wider the range covered by the side support surface, the less likely it is that the point of action of the friction head 311 on the carrier 200 will move out of the side support surface, the better the support effect on the carrier 200, and the more the point of action of the friction head 311 on the carrier 200 can be kept within the range of the ball support, and the tilt of the carrier 200 can be avoided as much as possible.

[0135] More specifically, when the carrier 200 moves along the optical axis, the magnetic magnet 610 will also move with the movement of the carrier 200, and the corresponding point of action of the magnetic attraction on the carrier 200 will also move. When the first support part 410 and the third support part 430 are implemented as two balls, the distance between the two balls of the first support part 410 is not less than the distance between the two balls of the third support part 430. If the distance between the two balls of the first support part 410 is equal to the distance between the two balls of the third support part 430, the first support part 410 and the third support part 430 will form a ball support surface that is approximately rectangular. When the carrier 200 is driven to move along the optical axis, the point of action of the magnetic attraction on the carrier 200 is at risk of moving out of the ball support surface. If the point of action of the magnetic attraction moves out of the range of the ball support surface, a torque will be generated, which can easily cause the carrier 200 to tilt or flip. (The straight-line distance from the point of action of the magnetic attraction to the line connecting the two balls in the width direction is the force arm), so the point of action of the magnetic attraction must always be within the range of the ball support surface.

[0136] Preferably, if Fig.19 , Fig.25 or Fig.28As shown, the ball spacing between the two balls of the first support portion 410 is greater than the ball spacing between the two balls of the third support portion 430, and in some preferred embodiments, it is more than 1.5 times. Further, in some optional embodiments, the spacing between the two L-shaped guide grooves 440 clamping the first support portion 410 is more than 1.5 times the spacing between the two oblique side wall guide grooves 460 clamping the third support portion 430, wherein the above-mentioned ball spacing and all guide groove spacings are spacings along the direction parallel to the optical axis. A magnetic support surface located on the bottom surface of the carrier 200 is formed between the four balls of the first support part 410 and the third support part 430. The ball spacing of the first support part 410 is greater than the ball spacing of the third support part 430. On the one hand, the area of ​​the magnetic support surface is increased so that the magnetic attraction effect of the magnetic component 600 on the bottom surface of the carrier 200 is always located within the magnetic support surface, so that the carrier 200 is supported more stably, and the carrier 200 is prevented from detaching or tilting during movement or falling; on the other hand, the magnetic attraction force generated between the magnetic magnet 610 and the yoke 620 clamps the first support part 410 and the third support part 430 between the bottom surface of the carrier 200 and the middle top surface of the outer frame 100, so that the carrier 200 is always supported, reducing the magnetic attraction effect on the carrier 200 and the risk of corresponding support failure, and reducing the probability of the carrier 200 tilting due to this. Furthermore, the magnetic attraction component 600 is disposed at the bottom of the carrier 200 close to the first support portion 410 to ensure that the point of action of the magnetic attraction force is always located within the magnetic attraction support surface to prevent the carrier 200 from tilting.

[0137] Furthermore, by placing the magnetic magnet 610 close to the first support portion 410 , it is possible to prevent the point of action of the magnetic attraction force from moving out of the range of the magnetic support surface to a greater extent, thereby preventing the carrier 200 from tilting to a greater extent.

[0138] In some preferred embodiments, when the driving member 310 is not powered on, when the second support portion 420 is arranged on the second side, the straight-line distance from the second support portion 420 to the driving member 310 is not equal to the straight-line distance from the third support portion 430 to the driving member 310, that is, the second support portion 420 and the third support portion 430 are not located in the same height direction, so as to provide more stable support for the carrier 200.

[0139] In a specific example of the present application, the pre-pressing actuation assembly 300 includes a driving member 310 and a pre-pressing member 320 disposed on the first side wall 110 of the outer frame 100. The driving member 310 is located between the pre-pressing member 320 and the first carrier side wall 211 of the carrier 200. The pre-pressing member 320 applies a pre-pressure perpendicular to the first carrier side wall 211 of the carrier 200 to the driving member 310 so as to abut against the first carrier side wall 211 of the carrier 200, thereby realizing the lateral driving of the carrier 200 by the pre-pressing actuation assembly 300. In order to sense the actual moving position of the carrier 200 in real time and better cooperate with the driving of the carrier 200 by the driving member 310, the periscope camera module also includes a position sensing assembly 800, which includes a position sensing element 810 and a position sensing magnet 820, such as Figure 6 and Fig.24 As shown, the position sensing element 810 is disposed on the second side wall 120 of the outer frame 100 and is disposed opposite to the pre-pressing actuating assembly 300. The position sensing magnet 820 is disposed on the second carrier side wall 212 of the carrier 200 at a position corresponding to the position sensing element 810. Figure 6 , Fig. 20 , Fig.24 , Fig.29 as well as Fig.30 As shown, a sensing magnet groove 216 for mounting the position sensing magnet 820 is disposed on the second carrier side wall 212 of the carrier 200 .

[0140] In some specific embodiments, the driving member 310 includes a piezoelectric vibrator 312 and a friction head 311 disposed on a side of the piezoelectric vibrator 312 facing the carrier 200. Figure 6 , Fig.18 and Fig.24 As shown, the friction head 311 and the pre-pressing member 320 are respectively located on both sides of the piezoelectric vibrator 312. The friction head 311 abuts against the first carrier side wall 211 of the carrier 200 through the pre-pressing member 320. The piezoelectric vibrator 312 frictionally connects the friction head 311 and the carrier 200 through its own vibration or piezoelectric actuation, and drives the carrier 200 to move.

[0141] Specifically, the piezoelectric vibrator 312 is a substrate having an inverse piezoelectric effect and shrinking or expanding according to the polarization direction and the electric field direction, and can be used by polarizing the substrate in the thickness direction of a single crystal, polycrystalline ceramic, polymer, etc. The inverse piezoelectric effect refers to the mechanical deformation of a dielectric when an electric field is applied in the polarization direction of the dielectric when a potential difference is generated. The piezoelectric vibrator 312 has the effect of ultrasonic oscillation, that is, it realizes a swaying reciprocating motion or an elliptical motion on a specifically set electrode layer, thereby being able to drive the friction head 311 to perform a swaying reciprocating motion or an elliptical motion, and then through the friction between the friction head 311 and the outer wall of the carrier 200, the carrier 200 is driven to move relative to the outer frame 100.

[0142] In some specific examples, the piezoelectric vibrator 312 is arranged on the first side wall 110 of the outer frame 100 along a direction parallel to the extension direction of the optical axis, and the friction head 311 is protrudingly arranged on the side of the piezoelectric vibrator 312 facing the carrier 200. The number of the friction heads 311 can be implemented as one or two or more. Under the vibration or piezoelectric actuation of the piezoelectric vibrator 312, the friction head 311 contacts and rubs with the first carrier side wall 211 of the carrier 200, and drives the carrier 200 to move.

[0143] Preferably, the friction head 311 is implemented as two friction heads 311 spaced apart along the extension direction of the piezoelectric vibrator 312 or along the extension direction of the optical axis, and the two friction heads 311 can cooperate with each other to drive the long-stroke movement of the carrier 200. Further, the setting position of the friction head 311 on the piezoelectric vibrator 312 can be matched with the mode of the piezoelectric vibrator 312. The piezoelectric vibrator 312 is bent and vibrated or piezoelectrically actuated in a mode of one crest and one trough in its thickness direction. The friction head 311 is arranged at the corresponding position of the crest and trough to increase the friction between the friction head 311 and the carrier 200, so as to improve the driving effect on the carrier 200.

[0144] In some specific examples, the friction head 311 and the piezoelectric vibrator 312 can be implemented as an integrated structure or a detachable structure, and the friction head 311 can be fixed to the piezoelectric vibrator 312 by bonding, clamping, nesting, welding, or fastener connection. More specifically, the connection between the friction head 311 and the piezoelectric vibrator 312 is a surface connection to ensure the connection strength, and the friction head 311 can move with the deformation of the piezoelectric vibrator 312.

[0145] In some specific examples, the friction head 311 is made of wear-resistant material, for example, it can be made of various high-hardness wear-resistant ceramic materials, such as aluminum oxide, zirconium oxide, silicon carbide ceramics, or high-wear-resistant metal materials, carbon fiber materials, or composite materials of ceramics, metal particles and polymers, etc., so as to improve the wear resistance of the friction head 311, which is beneficial to increase the friction between the carrier 200 and the friction head 311, which is beneficial to improve the driving efficiency, and due to the wear resistance, it is beneficial to extend the service life of the friction head 311.

[0146] In some specific examples, in order to improve the driving performance of the pre-pressure actuator assembly 300, the piezoelectric vibrator 312 can be made of piezoelectric ceramic material or piezoelectric single crystal material. The piezoelectric vibrator 312 can be a single-layer ceramic body or a single-layer single crystal, or a multi-layer ceramic body or a multi-layer single crystal, for example, lead zirconate titanate (PZT)-based piezoelectric ceramics, potassium sodium niobate (KNN)-based piezoelectric ceramics, barium titanate (BT)-based piezoelectric ceramics, lead magnesium niobate-lead indium niobate (PMN-PT)-based piezoelectric single crystals, etc.

[0147] In a specific example of the present application, the pre-pressing member 320 applies a pre-pressure toward the carrier 200 to the driving member 310, so that the friction head 311 of the driving member 310 always maintains friction contact with the first carrier side wall 211 of the carrier 200. Since the piezoelectric vibrator 312 is mechanically deformed when driven, the pre-pressing member 320 has an elastic deformation portion (elastic portion 3212) for abutting against the piezoelectric vibrator 312 and a fixing portion 3211 for mounting the piezoelectric vibrator 312, so as to fix the piezoelectric vibrator 312 and apply a pre-pressure toward the carrier 200 to the driving member 310, so as to maintain friction contact between the friction head 311 and the carrier 200.

[0148] In some specific embodiments, Figure 2As shown, the pre-pressed member 320 is implemented as a spring piece 321 extending in a direction parallel to the optical axis. The spring piece 321 assembles the piezoelectric vibrator 312 on the first side wall 110 of the outer frame 100. The spring piece 321 has a first fixed end 32111, a second fixed end 32112 and a third fixed end 32113 distributed in a direction parallel to the optical axis. A first elastic portion 32121 is provided between the first fixed end 32111 and the second fixed end 32112. 12 and the third fixed end 32113 are provided with a second elastic part 32122, the first fixed end 32111, the second fixed end 32112 and the third fixed end 32113 are fixed to the first side wall 110 of the outer frame 100 by welding, riveting or bonding, and the first elastic part 32121 and the second elastic part 32122 are extended parallel to the optical axis direction to connect two adjacent fixed ends, and use their own elastic deformation properties to apply appropriate pre-pressure to the driving member 310. In some optional embodiments, the pre-pressing member 320 can also be implemented as elastic glue.

[0149] More specifically, the pre-pressing member 320 includes the spring piece 321 and at least one clamping piece 322 which is arranged on the spring piece 321 and extends toward one side of the carrier 200. Figure 6 and Fig.18 As shown, one side of the clamping piece 322 is connected to the second fixed end 32112 of the spring piece 321, and the side of the clamping piece 322 facing the carrier 200 has a first clamping arm and a second clamping arm, and the first clamping arm and the second clamping arm extend toward the carrier 200 in a direction perpendicular to the optical axis, and are used to clamp the piezoelectric vibrator 312 to ensure its installation stability.

[0150] Among them, since the piezoelectric vibrator 312 drives the friction head 311 through its own bending vibration or piezoelectric actuation, the larger the extension size of the clamping arm, the larger the overlap area between the piezoelectric vibrator 312 and the clamping arm of the clamping sheet 322, and the greater the impact on the vibration or piezoelectric actuation of the piezoelectric vibrator 312. Therefore, the clamping arm size of the clamping sheet 322 should not be greater than 1 / 2 of the side wall length (i.e., the length along the optical axis direction) of the piezoelectric vibrator 312, so as to avoid the clamping arm of the clamping sheet 322 being clamped too tightly or the overlap area of ​​the clamping arm and the piezoelectric vibrator 312 being too large, resulting in the suppression of the vibration or piezoelectric actuation of the piezoelectric vibrator 312.

[0151] In some specific embodiments, the spring piece 321 is implemented as a planar spring piece, and may also be implemented as a spring piece 321 with a bent structure.

[0152] In some optional embodiments, the spring piece 321 includes at least two fixing portions 3211 disposed on the first side wall 110 of the outer frame 100 and an elastic portion 3212 connecting two adjacent fixing portions 3211. Figure 31-32As shown, the fixing portion 3211 includes a first fixing portion 32114 and a second fixing portion 32115 fixed on the first side wall 110 of the outer frame 100. The first fixing portion 32114 and the second fixing portion 32115 can be fixed to the outer side of the first side wall 110 of the outer frame 100 by welding, riveting or bonding. The elastic portion 3212 extends along a direction parallel to the optical axis and has a bending portion 3213 toward the piezoelectric vibrator 312 to apply a pre-pressure to the friction head 311 on the piezoelectric vibrator 312 to abut against the carrier 200.

[0153] Furthermore, a conductive component 700 is disposed on the piezoelectric vibrator 312 , and the conductive component 700 is assembled between the piezoelectric vibrator 312 and the elastic portion 3212 to facilitate the assembly and driving of the driving member 310 .

[0154] In some embodiments, in the pre-stress direction, i.e., perpendicular to the optical axis, the elastic portion 3212 covers the side of the piezoelectric vibrator 312 facing away from the carrier 200, i.e., at least a portion of the elastic portion 3212 overlaps with the side of the piezoelectric vibrator 312, so that the side of the piezoelectric vibrator 312 is supported by the elastic portion 3212, which can not only keep the piezoelectric vibrator 312 on a flat plane, but also avoid the situation where the pre-stress is uneven. Among them, the area of ​​the elastic portion 3212 is not less than the area of ​​the side of the piezoelectric vibrator 312 facing away from the carrier 200.

[0155] Specifically, the elastic part 3212 includes an adhesive part and a deformation part. In the direction perpendicular to the optical axis, the adhesive part overlaps with the side of the piezoelectric vibrator 312 facing away from the carrier 200 to fix the piezoelectric vibrator 312 to the elastic part 3212, and the deformation part does not overlap with the side of the piezoelectric vibrator 312 facing away from the carrier 200 to generate pre-pressure on the driver 310 by elastic deformation. The setting of the elastic part 3212 makes the actual motion state of the piezoelectric vibrator 312 of the driver 310 closer to the design value, reduces the influence of the external environment on the piezoelectric vibrator 312, and can also prevent the vibration or piezoelectric actuation of the piezoelectric vibrator 312 from being transmitted to the outer frame 100, causing the vibration or piezoelectric actuation of the outer frame 100.

[0156] Among them, along the direction perpendicular to the optical axis, the bonding part is the overlapping part of the elastic part 3212 and the side of the piezoelectric vibrator 312 facing away from the carrier 200, and the deformation part is the non-overlapping part of the elastic part 3212 and the side of the piezoelectric vibrator 312 facing away from the carrier 200, that is, the bonding part is used to connect the piezoelectric vibrator 312 and the elastic part 3212, and the deformation part is used to generate pre-pressure on the piezoelectric vibrator 312.

[0157] Furthermore, according to the formula: K=F / X, where K is stiffness (or elastic coefficient), F is elastic force, and X is displacement of deformation, reducing the K value of the elastic part 3212 actually reduces the sensitivity of the elastic force to displacement. When the K value of the elastic part 3212 is small, the fluctuation of the elastic force caused by the fluctuation of the displacement will become smaller, that is, the fluctuation of the pre-pressure of the elastic part 3212 on the driving member 310 becomes smaller, thereby making the friction force between the friction head 311 and the carrier 200 more uniform and consistent.

[0158] Specifically, Figure 31-32 As shown, the deformed portion of the elastic portion 3212 has a hollow structure 32123 to reduce the thickness of the deformed portion. When the material of the deformed portion is thinner, the K value of the elastic portion 3212 is reduced, so that the deformed portion of the elastic portion 3212 is more suitable for the bending vibration or piezoelectric actuation of the piezoelectric vibrator 312. The longer the extension length of the deformed portion along the length direction of the first side wall 110 of the outer frame 100 is, the smaller the K value (stiffness or elastic coefficient) of the elastic portion 3212 is, and the easier it is to produce elastic deformation.

[0159] Among them, the K value of the elastic part 3212 is small, so it can deform, thereby reducing the pre-pressure change caused by material tolerance and assembly tolerance in the contact system composed of the carrier 200, the driving member 310, and the elastic part 3212, thereby improving the consistency of the pre-pressure actuator assembly 300.

[0160] Specifically, the preload provided by the elastic portion 3212 of the preload member 320 is transmitted to the piezoelectric vibrator 312 of the driving member 310, so that the friction head 311 located on the piezoelectric vibrator 312 abuts against the carrier 200. Since the K value of the elastic portion 3212 is relatively small, it will produce different degrees of deformation due to the tolerance, thereby reducing the difference in preload of the preload actuator assembly 300 under different tolerances.

[0161] Further, in some embodiments, the bending portion 3213 makes the fixed portion 3211 and the elastic portion 3212 located in different planes, that is, the plane where the fixed portion 3211 is located and the plane where the elastic portion 3212 is located are parallel to each other and have a certain distance, so that the fixed portion 3211 is fixedly connected to the first side wall 110 of the outer frame 100, and the elastic portion 3212 is arranged on the side of the piezoelectric vibrator 312 facing away from the carrier 200, and applies a pre-pressure in the direction perpendicular to the optical axis to the piezoelectric vibrator 312, thereby achieving frictional contact between the friction head 311 and the carrier 200. Compared with the design of the planar spring sheet 321 in which the fixed portion 3211 and the elastic portion 3212 are located in the same plane, the existence of the bending portion 3213 can also reduce the K value of the elastic portion 3212, so that the fluctuation of the pre-pressure of the elastic portion 3212 acting on the driving member 310 becomes smaller, thereby making the friction between the friction head 311 and the carrier 200 more uniform and consistent.

[0162] Among them, since the elastic part 3212 is connected to the first fixed part 32114 and the second fixed part 32115, the number of the bending parts 3213 is also two, including the first bending part 32131 and the second bending part 32132, the first bending part 32131 connects the first fixed part 32114 and the elastic part 3212, and the second bending part 32132 connects the second fixed part 32115 and the elastic part 3212.

[0163] In some embodiments, reference Fig.33 The bending portion 3213 obliquely connects the fixing portion 3211 and the elastic portion 3212 , and a plane where the bending portion 3213 is located intersects with a plane where the fixing portion 3211 is located and a plane where the elastic portion 3212 is located.

[0164] Specifically, the first bending portion 32131 and the second bending portion 32132 connect the first fixing portion 32114, the elastic portion 3212 and the second fixing portion 32115 in a relative oblique direction, so that the pre-pressing component has an opening extending outward from the elastic portion 3212 and gradually increasing in size, that is, the extension line of the first bending portion 32131 intersects with the extension line of the second bending portion 32132. In the pre-pressing component, the elastic portion 3212 protrudes outward from the fixing portion 3211, that is, the distance from the plane where the elastic portion 3212 is located to the carrier 200 is greater than the distance from the plane where the fixing portion 3211 is located to the carrier 200, so that when the fixing portion 3211 is fixedly connected to the first side wall 110 of the outer frame 100, the elastic portion 3212 is pressed against the side of the piezoelectric vibrator 312 facing away from the carrier 200, so as to generate a certain pre-pressure on the driving member 310. Moreover, the K value of the elastic part 3212 can be reduced to reduce the fluctuation of the pre-pressure of the elastic part 3212 on the driving member 310, thereby making the friction force between the friction head 311 and the carrier 200 more uniform and consistent.

[0165] In some optional embodiments, the pre-pressed part 320 may be implemented as an integrated structure, that is, the fixed part 3211 and the elastic part 3212 are integrally formed, and the bent part 3213 is formed by one-time stamping at the connection position of the fixed part 3211 and the elastic part 3212 to improve the consistency of the pre-pressed part 320. In some optional embodiments, the pre-pressed part 320 may also be implemented as a split structure, that is, the fixed part 3211, the elastic part 3212 and the bent part 3213 are manufactured separately and then connected together by bonding or welding to simplify the manufacture of the pre-pressed part 320.

[0166] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A periscope camera module, characterized in that: include: Outer frame; A carrier capable of moving inside the outer frame along the optical axis direction, used for carrying at least one lens; A pre-pressure actuating assembly is disposed on one side of the carrier and applies a pre-pressure perpendicular to the optical axis to the carrier to drive the carrier to move along the optical axis; as well as A support assembly assembled between the outer frame and the carrier, the support assembly comprising a first support portion and a second support portion; The first support portion and the second support portion are respectively arranged on opposite sides of the carrier, the first support portion is arranged on one side of the carrier in contact with the pre-pressing actuating assembly, and the first support portion is tightly fitted between the bottom of the outer frame and the bottom of the carrier, and the second support portion is arranged on the other side of the carrier not in contact with the pre-pressing actuating assembly and is loosely fitted between the outer frame and the carrier; The pre-compression actuation assembly comprises: A pre-pressed part is assembled on a side wall of the outer frame; A driving member, which is assembled between the pre-pressing member and a side wall of the carrier; The pre-pressing member applies a pre-pressure toward the carrier and perpendicular to the side wall of the carrier to the driving member, so as to maintain frictional contact between the driving member and the side wall of the carrier.

2. The periscope camera module according to claim 1, characterized in that: The second supporting portion is disposed between the top of the outer frame and the top of the carrier.

3. The periscope camera module according to claim 1, characterized in that: When the pre-load actuating assembly is not powered on, a straight-line distance between the second supporting portion and the pre-load actuating assembly is not less than a straight-line distance between the first supporting portion and the pre-load actuating assembly.

4. The periscope camera module according to claim 1, characterized in that: The first supporting part and the second supporting part each include two balls arranged parallel to the optical axis direction, and the size of the balls of the first supporting part is not less than the size of the balls of the second supporting part.

5. The periscope camera module according to claim 1, characterized in that: The support assembly further includes a third support portion, which is assembled between the outer frame and the carrier; wherein the first support portion and the third support portion are relatively arranged at two sides of the bottom of the carrier.

6. The periscope camera module according to claim 5, characterized in that: The first supporting part, the second supporting part and the third supporting part each include a guide rod or two balls arranged parallel to the optical axis.

7. The periscope camera module according to claim 1, characterized in that: It also includes a magnetic attraction component, which is relatively arranged on the outer frame and the carrier and extends in a direction parallel to the optical axis, and applies a magnetic attraction force perpendicular to the optical axis but not parallel to the pre-pressure direction to the carrier.

8. The periscope camera module according to claim 1, characterized in that: The driving member has a friction head which is frictionally connected to the side wall of the carrier, and the friction head is in frictional contact with the side wall of the carrier.

9. The periscope camera module according to claim 8, characterized in that: The driving member also includes a piezoelectric vibrator, which is arranged between the pre-pressed member and the friction head, and its length direction is parallel to the optical axis direction, and is used for vibration or piezoelectric actuation to drive the friction head to generate a driving force to drive the carrier to move.

10. The periscope camera module according to claim 8, characterized in that: The pre-pressed part is a spring sheet, which extends in a direction parallel to the optical axis and has a fixing portion for fixing the pre-pressed part on a side wall of the outer frame, and for applying a pre-pressure to the pre-pressed part toward the carrier and perpendicular to the side wall of the carrier.

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