Motor, camera module and electronic equipment

Abstract

The invention provides a motor, a camera module and electronic equipment. The motor comprises a base, a carrier and a piezoelectric actuator, the carrier is movably connected with the base, the piezoelectric actuator is movably connected with the base and fixedly connected with the carrier, and the piezoelectric actuator is used for driving the carrier to move in the first direction relative to the base; the piezoelectric actuator comprises a pre-pressing assembly, a harmonic oscillator and a driven piece. The driven piece is movably connected with the base and is fixedly connected to the carrier; the harmonic oscillator is fixedly connected to the pre-pressing assembly, the pre-pressing assembly is fixed to the base, the pre-pressing assembly is used for extruding a driving foot of the harmonic oscillator to the driven part, and the harmonic oscillator is used for driving the driven part to drive the carrier to move in the first direction relative to the base when powered on; the driven piece is provided with a first connecting surface, the carrier is provided with a second connecting surface, and the first connecting surface is magnetically connected with the second connecting surface. The motor is small in magnetic interference, small in size and high in reliability.

Description

Technical Field

[0001] The present application relates to the technical field of photographing equipment, and in particular to a motor, a camera module and an electronic device. Background Art

[0002] With the development of science and technology and the demand of the electronic equipment market, camera modules are used more and more widely in electronic equipment. Camera modules can have multiple functions, among which the focusing function of camera modules has gradually become the focus of users. Traditional camera modules are equipped with dynamic motors, which can drive the lens to move to complete the focus. However, due to the unreasonable layout of the magnets of the dynamic motor and the high integration of the camera module, other components are susceptible to a large degree of magnetic interference. In order to reduce the magnetic interference of magnets on other components, the camera module needs to increase its size to make room to avoid magnetic interference. Therefore, the size of traditional camera modules is large. Summary of the invention

[0003] The present application provides a motor, a camera module and an electronic device with less magnetic interference and smaller size.

[0004] In the first aspect, the present application provides a motor. The motor includes a base, a carrier, and a piezoelectric actuator. The carrier is movably connected to the base, the piezoelectric actuator is movably connected to the base, and is fixedly connected to the carrier. The piezoelectric actuator is used to drive the carrier to move relative to the base in a first direction. The piezoelectric actuator includes a pre-stressing component, a resonator, and a follower. The follower is movably connected to the base and fixedly connected to the carrier. The resonator is fixedly connected to the pre-stressing component, the pre-stressing component is fixed to the base, and the pre-stressing component is used to squeeze the driving foot of the resonator on the follower. The resonator is used to drive the follower to drive the carrier to move relative to the base in the first direction when power is turned on. The follower has a first connection surface, the carrier has a second connection surface, and the first connection surface is magnetically connected to the second connection surface.

[0005] It can be understood that the pre-stressing assembly can be used to provide the resonator with a pre-stress for abutting against the follower, so that the resonator can be closely abutted against the follower under the action of the pre-stress, which is conducive to transmitting the macroscopic displacement generated by the microscopic vibration of the resonator to the follower.

[0006] It can be understood that the first connecting surface is magnetically connected to the second connecting surface, the follower and the carrier can be connected, and the piezoelectric actuator can control the carrier to move relative to the base along the first direction, thereby achieving the focus of the camera module. In this embodiment, the carrier can be driven to move by a piezoelectric actuator. Therefore, the motor of this embodiment is not a moving magnet motor or a moving coil motor. In this way, electromagnetic interference between multiple different magnets can be avoided. Since there is no need to increase the size of the motor to make room to avoid magnetic interference, the problem of the larger size of the motor can be avoided, which is conducive to the miniaturization of the motor of this embodiment.

[0007] In a possible implementation, one of at least a portion of the first connection surface and at least a portion of the second connection surface is a curved surface, and the other is a flat surface; or at least a portion of the first connection surface and at least a portion of the second connection surface are both curved surfaces.

[0008] It can be understood that by setting at least a portion of the first connection surface and at least a portion of the second connection surface as a curved surface and the other as a flat surface, or by setting at least a portion of the first connection surface and at least a portion of the second connection surface as curved surfaces, point contact between the first connection surface and the second connection surface can be achieved, and the freedom restriction between the piezoelectric actuator and the carrier can be decoupled, and the point contact between the carrier and the follower will only restrict the carrier along the first direction. In this way, when the position of the follower is offset by a large angle relative to the base, this offset is not easily transmitted to the carrier through the point contact between the carrier and the follower, the carrier is not easily affected by the follower, and the position of the carrier is not easily offset by a large angle relative to the base, so that the carrier can stably reciprocate relative to the base along the first direction, and the reliability of the carrier is high.

[0009] In a possible implementation, the first connecting surface is a curved surface, and the second connecting surface is a flat surface.

[0010] It is understandable that by setting the first connection surface as an arc surface and the second connection surface as a plane, point contact between the first connection surface and the second connection surface can be achieved, thereby achieving point contact between the follower and the carrier. In this way, the position change of the follower in directions other than the first direction is not easily transmitted to the carrier, and the reliability of the carrier is higher.

[0011] In a possible implementation, the first connecting surface includes a plane and a curved surface, the curved surface is connected to the plane, the second connecting surface is a plane, and the curved surface of the first connecting surface is fixedly connected to the second connecting surface.

[0012] It is understandable that by setting part of the first connection surface as an arc surface and the second connection surface as a plane, point contact between the first connection surface and the second connection surface can be achieved, thereby achieving point contact between the magnetic body and the magnetic body, and then achieving point contact between the follower and the carrier. In this way, the position change of the follower in directions other than the first direction is not easily transmitted to the carrier, and the carrier is not easy to move relative to the base in directions other than the first direction, and the reliability of the carrier is higher.

[0013] In one possible implementation, the carrier includes a carrier body and a magnetic body, the magnetic body is fixedly connected to the carrier body, and the carrier body is movably connected to the base; the follower includes a follower body and a magnetic body, the magnetic body is fixedly connected to the follower body, and the follower body is movably connected to the base, the magnetic body and the magnetic body are arranged opposite to each other, the surface of the magnetic body facing the magnetic body is the first connection surface, and the surface of the magnetic body facing the magnetic body is the second connection surface.

[0014] It is understandable that the carrier and the follower can be fixedly connected through point contact, which can decouple the freedom restriction between the piezoelectric actuator and the carrier, and the point contact between the carrier and the follower will only restrict the carrier along the first direction. In this way, when the position of the follower is offset by a large angle relative to the base, this offset is not easily transmitted to the carrier through the point contact between the carrier and the follower, the carrier is not easily affected by the follower, and the position of the carrier is not easily offset by a large angle relative to the base, so that the carrier can stably reciprocate relative to the base along the first direction, and the reliability of the carrier is high.

[0015] In a possible implementation manner, the carrier body is provided with a first groove, and at least a portion of the magnetic body and at least a portion of the magnetic attraction body are located in the first groove.

[0016] It can be understood that by arranging at least part of the magnetic body and at least part of the magnetic attraction body to be located in the first groove, the space of the motor along the second direction can be fully utilized, the space utilization rate of the motor can be improved, and the miniaturization of the motor can be achieved.

[0017] In one possible implementation, the base encloses a accommodating space, and at least a portion of the carrier is located in the accommodating space; the follower body includes a first connecting portion and a second connecting portion, the second connecting portion is bent and connected to the first connecting portion, and is at least partially located on one side of the first connecting portion, and the magnetic body is fixedly connected to the second connecting portion; the first connecting portion is located on a side of the base away from the carrier body, and is slidably connected to the base, and a portion of the second connecting portion spans the base and extends into the accommodating space.

[0018] It is understandable that by arranging the first connection part and the second connection part on both sides of the base, the movable connection between the driven member and the base and the fixed connection between the driven member and the carrier can be achieved at the same time. In addition, the second connection part extends into the accommodating space, which can save space for the motor and is conducive to improving the space utilization rate of the motor.

[0019] In one possible implementation, the follower body also includes a first sliding shaft portion and a second sliding shaft portion, and the first sliding shaft portion and the second sliding shaft portion are protruded from the surface of the first connecting portion facing the second connecting portion; the base includes a first sliding groove and a second sliding groove, and at least a portion of the first sliding shaft portion is located in the first sliding groove, and at least a portion of the second sliding shaft portion is located in the second sliding groove.

[0020] It can be understood that the follower can be movably connected to the base through the first sliding shaft part and the second sliding shaft part. The first sliding groove and the second sliding groove both extend along the first direction, and the first sliding groove and the second sliding groove can guide the first sliding shaft part and the second sliding shaft part, so that the first sliding shaft part and the second sliding shaft part can slide along the first direction. Since the first sliding shaft part and the second sliding shaft part are both fixedly connected to the second connecting part, the follower can be driven by the first sliding shaft part and the second sliding shaft part to reciprocate relative to the base along the first direction.

[0021] In one possible implementation, the motor also includes a first support member and a second support member, and the carrier is movably connected to the base through the first support member and the second support member; the carrier body includes a first support groove and a second support groove arranged at intervals, at least a portion of the first support member is located in the first support groove, and at least a portion of the second support member is located in the second support groove; the first support groove and the second support groove both extend along the first direction, the first support groove and the second support groove are both arranged along the second direction, the first slide groove and the second slide groove both extend along the first direction, and the first slide groove and the second slide groove are arranged along the third direction, wherein the first direction, the second direction and the third direction are different from each other.

[0022] It can be understood that the extension direction between the first support groove and the second support groove can be substantially parallel to the extension direction between the first slide groove and the second slide groove, so that the carrier and the follower can move together in the first direction. The arrangement direction between the first support groove and the second support groove can be substantially perpendicular to the arrangement direction between the first slide groove and the second slide groove, and the first support groove and the second support groove connected to the carrier and the first slide groove and the second slide groove connected to the piezoelectric actuator are independent of each other and are substantially orthogonal in layout, which can ensure the movement stability of the carrier and the follower.

[0023] In one possible implementation, the first support groove includes a first side wall and a second side wall, the first side wall and the second side wall are arranged opposite to each other and inclined, the distance between the first side wall and the second side wall at the opening of the first support groove is greater than the distance between the first side wall and the second side wall at the bottom of the groove body of the first support groove, and the first support member is in contact with the first side wall and the second side wall; compared with the second support groove, the first support groove is close to the piezoelectric actuator.

[0024] It can be understood that by setting the first supporting groove on the side close to the piezoelectric actuator, the piezoelectric actuator can be located on the side where the carrier and the first supporting member are tightly matched. In this way, the stability of the carrier during movement can be improved, and the carrier can be prevented from tilting at a large angle, which is beneficial to improving the reliability of the carrier.

[0025] In a possible implementation, a cross section of the first supporting groove is V-shaped or trapezoidal.

[0026] It can be understood that the first support groove can limit the sliding direction of the first support member, so that the first support member can slide relative to the extension direction of the first support groove (that is, the first direction), which can reduce the probability of the first support member shifting, thereby reducing the probability of the carrier shifting when moving along the first direction.

[0027] In a possible implementation, the motor further includes a first magnetic member and a second magnetic member, and the first magnetic member and the second magnetic member are fixedly connected to the carrier; the first support member is made of magnetic material, and the first support member and the first magnetic member are arranged opposite to each other.

[0028] It is understandable that the magnetic force between the first magnetic member and the first support member can adsorb the carrier onto the first support member. In this way, along the third direction, the carrier can be more closely connected to the first support member through the first magnetic member, preventing the carrier from tilting at a large angle or falling out during movement, thereby improving the stability and reliability of the carrier during movement. In addition, by adsorbing the carrier onto the first support member, the noise generated by the carrier and the first support member is smaller during the movement of the carrier relative to the base along the first direction, and the user experience is better.

[0029] In a possible implementation, the motor further includes a first magnetic member and a second magnetic member, the first magnetic member and the second magnetic member are fixedly connected to the carrier; the second support member is made of magnetic material, and the second support member and the second magnetic member are arranged opposite to each other.

[0030] It is understandable that the magnetic force between the second magnetic member and the second support member can adsorb the carrier onto the second support member. In this way, along the third direction, the carrier can be more closely connected to the second support member through the second magnetic member, preventing the carrier from tilting at a large angle or falling out during movement, thereby improving the stability and reliability of the carrier during movement. In addition, by adsorbing the carrier onto the second support member, the noise generated by the carrier and the second support member is smaller during the movement of the carrier relative to the base along the first direction, and the user's experience is better.

[0031] In a possible implementation, a first boss and a second boss are convexly provided on the surface of the first sliding shaft portion, and the first boss and the second boss abut against the first sliding groove; a third boss is convexly provided on the surface of the second sliding shaft portion, and the third boss abuts against the second sliding groove.

[0032] It can be understood that the base and the first sliding shaft portion are in contact through the first boss and the second boss, and the base and the second sliding shaft portion are in contact through the third boss. The three-point contact method makes the connection between the base and the first sliding shaft portion and the second sliding shaft portion more stable, improves the stability of the follower moving relative to the base along the first direction, thereby improving the stability of the carrier moving relative to the base along the first direction.

[0033] In a possible implementation, cross sections of the first sliding shaft portion and the second sliding shaft portion are semicircular.

[0034] It can be understood that, since the cross-sections of the first sliding shaft portion and the second sliding shaft portion can both be roughly semicircular, during the movement of the follower relative to the base, the noise generated between the first sliding shaft portion, the second sliding shaft portion and the base is relatively small, and the user experience is better. In addition, compared with the sliding shaft with a roughly circular cross-section, the first sliding shaft portion and the second sliding shaft portion with a roughly semicircular cross-section occupy less space in the second direction, and are not likely to affect the reliability of the first sliding shaft portion and the second sliding shaft portion, which is conducive to the miniaturization of the piezoelectric actuator and the motor.

[0035] In a possible implementation, a friction groove is provided on the first connecting portion of the driven member, and the driving foot of the resonator is located in the friction groove and contacts with the groove wall of the friction groove.

[0036] It can be understood that the driving foot of the resonator can rub against the groove wall of the friction groove, thereby generating a force along the first direction, thereby driving the driven member to move along the first direction relative to the resonator.

[0037] In a possible implementation, a first wear-resistant layer is provided on the surface of the driving foot of the resonator, and the material of the first wear-resistant layer includes nitride.

[0038] It is understandable that stainless steel and nitride have relatively high hardness, and the first wear-resistant layer also has relatively high hardness, which can improve the hardness of the surface of the driving foot. In this way, during the friction between the driving foot and the driven member, the driving foot is not prone to wear or chipping, and black spots or shadows are not likely to appear in the images or videos taken by the camera module, and the imaging quality of the camera module is relatively high.

[0039] In a possible implementation, a groove wall of the friction groove is provided with a second wear-resistant layer, and the material of the second wear-resistant layer includes nitride.

[0040] It can be understood that stainless steel has a greater hardness and the second wear-resistant layer has a greater hardness, which can increase the hardness of the groove wall of the friction groove of the follower. In this way, during the friction between the driving foot and the follower, the follower is not prone to wear or chipping, and black spots or shadows are not likely to appear in the images or videos taken by the camera module, and the imaging quality of the camera module is relatively high.

[0041] In a possible implementation, a ceramic layer is provided on the groove wall of the friction groove, the driving foot of the resonator is in contact with the ceramic layer, and the thickness T of the ceramic layer satisfies: T≥0.05 mm.

[0042] It can be understood that by setting the thickness T of the ceramic layer within a range greater than or equal to 0.05 mm, the thickness of the ceramic layer is larger and the hardness of the ceramic layer is also larger, which can increase the hardness of the groove wall of the friction groove of the follower. In this way, during the friction between the driving foot and the follower, the follower is not prone to wear or chipping, and black spots or black shadows are not likely to appear in the images or videos taken by the camera module, and the imaging quality of the camera module is higher.

[0043] In one possible implementation, the pre-stressing assembly includes a bracket and a pressure column, the bracket includes a first end, a middle part and a second end connected in sequence, and the resonator is fixedly connected to the middle part of the bracket; the first end of the bracket is fixedly connected to the base, the pressure column is fixedly connected to the base, and the second end of the bracket is fixed to the base.

[0044] It can be understood that the pressure column fixes the second end of the bracket on the base, and the pressure column can limit the bracket, thereby preventing the spring leaf from undergoing non-elastic deformation.

[0045] In a possible implementation, the base is provided with a first limiting groove, and the first end of the bracket is fixedly connected in the first limiting groove.

[0046] It is understandable that the base can limit the bracket along the third direction, the bracket is not easy to fall off the base, and the reliability of the bracket is better. When the follower moves relative to the base, the bracket can provide a stable pre-pressure to the resonator, so that the driving foot of the resonator can be closely abutted against the follower, and the connection between the resonator and the follower is more reliable.

[0047] In a possible implementation, the base is provided with a second limiting groove, and the second end of the bracket is fixedly connected in the second limiting groove.

[0048] It is understandable that the base can limit the bracket along the third direction, the bracket is not easy to fall off the base, and the reliability of the bracket is better. When the follower moves relative to the base, the bracket can provide a stable pre-pressure to the resonator, so that the driving foot of the resonator can be closely abutted against the follower, and the connection between the resonator and the follower is more reliable.

[0049] In a possible implementation, the pre-pressing assembly further includes a spring, a first end and a second end of the spring are fixedly connected to the base, and a middle portion of the spring is fixedly connected to the first end of the bracket.

[0050] It can be understood that the spring elastically fixes the first end of the bracket to the base, and the reverse K value of the spring is small, which can avoid a large variation in the pre-pressure of the spring.

[0051] In a possible implementation, the cross section of the pressure column is circular, semicircular or polygonal.

[0052] It is understandable that when the cross-section of the pressure column is circular or semicircular, the contact between the pressure column and the bracket is a line contact, which can improve the torsional stability of the bracket, so that the pre-stressing component can provide the driving foot of the resonator with a pre-stress to squeeze the follower, and the resonator can be closely abutted against the follower under the action of the pre-stress, which is conducive to ensuring that the macroscopic displacement generated by the microscopic vibration of the resonator is transmitted to the follower. In addition, since the contact between the pressure column and the bracket is a line contact, the bracket has a strong anti-swinging ability, thereby avoiding the output fluctuation and noise caused by the swing of the bracket, and the user experience is better.

[0053] It can be understood that when the cross-section of the pressure column is polygonal, the contact between the pressure column and the bracket is surface contact, which can improve the torsional stability of the bracket, so that the pre-stressing component can provide a pre-stress to the driving foot of the resonator to squeeze the follower. The resonator can be tightly abutted against the follower under the action of the pre-stress, which is beneficial to ensure that the macroscopic displacement generated by the microscopic vibration of the resonator is transmitted to the follower.

[0054] In one possible implementation, the resonator includes an elastomer, a driving foot, a first piezoelectric ceramic and a second piezoelectric ceramic, and the elastomer is fixedly connected to the pre-stressing assembly; the elastomer includes a first surface and a second surface arranged back to back, the first surface is arranged toward the follower, the driving foot is fixedly connected to the first surface, and the first piezoelectric ceramic and the second piezoelectric ceramic are fixedly connected to the second surface at intervals.

[0055] It is understandable that the pre-pressing assembly can play a role in fixing and supporting the elastic body. The first piezoelectric ceramic and the second piezoelectric ceramic can deform when powered on, and the elastic body can convert the deformation into macroscopic displacement.

[0056] In one possible implementation, the motor also includes a circuit board assembly, the circuit board assembly includes a main circuit board, a position sensor and a third magnetic component, the third magnetic component is fixedly connected to the carrier; the position sensor is fixedly connected to the main circuit board and electrically connected to the main circuit board; the main circuit board is fixedly connected to the base and is located on a side of the base away from the piezoelectric actuator, and the position sensor and the third magnetic component are arranged opposite to each other.

[0057] It can be understood that the position sensor can detect the changes in the magnetic field of the third magnetic component, and the processor can obtain the real-time position of the carrier based on the detection results of the position sensor, thereby achieving precise control of the displacement of the carrier, and then achieving closed-loop control of the carrier, and the reliability of the carrier is relatively high.

[0058] In a possible implementation, the piezoelectric actuator also includes a first circuit board and a second circuit board, the first circuit board is fixedly connected to the first piezoelectric ceramic and electrically connected, and the second circuit board is fixedly connected to the second piezoelectric ceramic and electrically connected; the base includes a base body, a first electrical connection end, a second electrical connection end, a third electrical connection end, a fourth electrical connection end, a first trace and a second trace; the first electrical connection end, the second electrical connection end, the third electrical connection end and the fourth electrical connection end are fixedly connected to the base body at intervals and exposed relative to the base body, the first electrical connection end and the second electrical connection end are electrically connected to the first circuit board and the second circuit board respectively, and the third electrical connection end and the fourth electrical connection end are electrically connected to the main circuit board; the first trace and the second trace are embedded in the base body, the first trace is electrically connected to the first electrical connection end and the third electrical connection end, and the second trace is electrically connected to the second electrical connection end and the fourth electrical connection end.

[0059] It is understandable that the piezoelectric actuator can be electrically connected to the circuit board assembly through the base, and the piezoelectric actuator can achieve electrical connection without the need for additional structural parts, which is beneficial to reducing the number of structural parts of the motor and thus facilitating the miniaturization of the motor.

[0060] In one possible implementation, the circuit board assembly also includes an electronic device, which is fixedly connected to the main circuit board and located on a side of the main circuit board away from the base; the base has an anti-collision protrusion, and the height of the anti-collision protrusion is greater than the height of the electronic device.

[0061] It is understandable that, since the height of the anti-collision protrusion along the second direction is greater than the height of the electronic device along the second direction, the anti-collision protrusion can protect the electronic device. Compared with the electronic device, other components are more likely to collide with the anti-collision protrusion, while the electronic device is not likely to collide with other components. The electronic device is not likely to malfunction or even be damaged due to the collision, and the reliability of the electronic device and the circuit board assembly is higher.

[0062] In a possible implementation, the motor further includes a first dust-catching rubber, which is fixedly connected to the driven member and is located on a side of the driven member close to the resonator.

[0063] It can be understood that the first dust-catching glue can capture the debris generated by the friction between the driving foot and the follower of the resonator, preventing the debris from falling onto the lens, thereby avoiding the appearance of black spots or shadows in the image taken by the camera module, thereby improving the imaging quality of the camera module.

[0064] In one possible implementation, the base includes a bottom plate, a first side plate, a second side plate, a third side plate and a fourth side plate, the first side plate, the second side plate, the third side plate and the fourth side plate are located on the same side of the bottom plate and are fixedly connected to the bottom plate; the motor also includes a second dust-catching rubber, the second dust-catching rubber is fixedly connected to the bottom plate and is located on a side of the bottom plate close to the first side plate.

[0065] It can be understood that the second dust-catching glue can capture the debris generated by the friction between the driving foot and the follower of the resonator, preventing the debris from falling onto the lens, thereby avoiding the appearance of black spots or shadows in the image taken by the camera module, thereby improving the imaging quality of the camera module.

[0066] In one possible implementation, the motor also includes a shell and a third dust-catching rubber, and the third dust-catching rubber is fixedly connected to the shell; the shell includes a top, a first side, a second side, a third side and a fourth side, and the first side, the second side, the third side and the fourth side are located on the same side of the top and are fixedly connected to the top; the shell cover is arranged on the base, and the third dust-catching rubber is fixedly connected to the top, and is located on the side of the top close to the base.

[0067] It can be understood that the third dust-catching glue can capture the debris generated by the friction between the driving foot and the follower of the resonator, preventing the debris from falling onto the lens, thereby avoiding the appearance of black spots or shadows in the image taken by the camera module, thereby improving the imaging quality of the camera module.

[0068] In a second aspect, the present application provides a camera module, which includes a lens and the above-mentioned motor, wherein the lens is fixedly connected to a carrier.

[0069] It is understandable that the camera module can be miniaturized and has high reliability.

[0070] In a third aspect, the present application provides an electronic device, which includes a housing and the above-mentioned camera module, wherein the camera module is disposed in the housing.

[0071] It is understandable that the camera module of the electronic device can be miniaturized and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application; Figure 2 yes Figure 1 A partial cross-sectional schematic diagram of an embodiment of the electronic device shown at line AA; Figure 3 yes Figure 2 A partial structural schematic diagram of a focusing assembly in one embodiment is shown; Figure 4 yes Figure 3 The motor shown is a partially exploded schematic diagram of one embodiment. Figure 1 ; Figure 5 yes Figure 4 The schematic diagram of the structure of the base in one embodiment is shown; Figure 6 yes Figure 5 The schematic diagram of the structure of the base shown in another angle; Figure 7 yes Figure 5 A partially exploded schematic diagram of a base in one embodiment is shown; Figure 8 yes Figure 4 The schematic diagram of the structure of the carrier shown in one embodiment; Fig. 9 yes Figure 8 The schematic diagram of the structure of the carrier shown is at another angle; Fig.10 yes Figure 8 A partially exploded schematic diagram of a carrier in one embodiment is shown; Fig.11 yes Figure 8 A partial cross-sectional schematic diagram of an embodiment of the carrier shown at line BB; Fig.12 yes Figure 3 The motor shown is a partially exploded schematic diagram of one embodiment. Figure 2 ; Fig.13 yes Figure 3 The motor shown is a schematic diagram of a partial structure of an embodiment Figure 1 ; Fig.14 yes Fig.13 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line CC; Fig.15 yes Fig.13 A partially exploded schematic diagram of the motor shown at another angle; Fig.16 yes Figure 4 A partially exploded schematic diagram of a piezoelectric actuator in one embodiment is shown; Fig.17 yes Fig.16 The structure schematic diagram of the driven member shown in another angle; Fig.18 yes Fig.17 A partially exploded schematic diagram of a follower in one embodiment is shown; Fig.19A yes Figure 3 The motor shown is a partially exploded schematic diagram of one embodiment. Figure 3 ; Fig.19B yes Figure 3 The motor shown is a schematic diagram of a partial structure of an embodiment Figure 2 ; Fig. 20A yes Fig.19B A partial cross-sectional schematic diagram of an embodiment of the motor shown at line DD; Fig. 20B yes Fig. 20A The structure of the motor shown is an enlarged schematic diagram of an embodiment at E; Fig.21 yes Fig.19B A partial cross-sectional schematic diagram of an embodiment of the motor shown at line FF; Fig.22A yes Fig.19B A partial cross-sectional schematic diagram of another embodiment of the motor shown at line DD; Fig. 22B yes Fig.22A The structure of the motor shown is an enlarged schematic diagram of an embodiment at G; Fig.23 yes Fig.16 The structure diagram of the resonator shown in one embodiment; Fig.24 yes Fig.23 A partially exploded schematic diagram of a resonator in one embodiment is shown; Fig.25 yes Fig.16 A partial structural schematic diagram of a pre-pressing assembly in one embodiment is shown; Fig.26 yes Fig.25A partially exploded schematic diagram of a pre-pressing assembly in one embodiment is shown; Fig. 27 yes Figure 4 A partial structural schematic diagram of a piezoelectric actuator in one embodiment is shown; Fig.28 yes Figure 4 A partial structural schematic diagram of a piezoelectric actuator in one embodiment is shown; Fig.29 yes Figure 3 The motor shown is a partially exploded schematic diagram of one embodiment. Figure 4 ; Fig.30 yes Figure 3 The motor is shown partially exploded in one embodiment. Figure 5 ; Fig.31 yes Figure 3 The motor shown is a schematic diagram of a partial structure of an embodiment Figure 3 ; Fig.32 yes Fig.31 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line HH; Fig.33A yes Figure 4 A partial cross-sectional schematic diagram of an embodiment of the piezoelectric actuator shown at line II; Fig.33B yes Fig.33A An enlarged schematic diagram of the structure of an implementation of the piezoelectric actuator shown at J; Fig.34A yes Figure 4 A partial cross-sectional schematic diagram of another embodiment of the piezoelectric actuator shown at line II; Fig.34B yes Fig.34A The structure of the piezoelectric actuator shown is an enlarged schematic diagram of an embodiment at K; Fig.35 yes Fig.31 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line LL; Fig.36 yes Fig.31 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line MM; Fig.37 yes Fig.31 A partial cross-sectional schematic diagram of another embodiment of the motor shown at line MM; Fig.38 yes Fig.31 The schematic diagram of the structure of the motor shown in another angle; Fig.39 yes Fig.38 A partially exploded schematic diagram of a motor in one embodiment is shown; Fig.40 yes Figure 4 A schematic diagram of a partial structure of the circuit board assembly shown at another angle; Fig.41 yes Fig.40 A schematic diagram of a partial structure of the circuit board assembly shown at another angle; Fig.42 yes Figure 3 The motor shown is a schematic diagram of a partial structure of an embodiment Figure 4 ; Fig.43 yes Fig.42 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line NN; Fig.44 yes Figure 4 A schematic diagram of a partial structure of a motor in one embodiment is shown; Fig.45A yes Figure 3 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line OO; Fig.45B yes Fig.45A The structure of the motor shown is an enlarged schematic diagram of an embodiment at P; Fig.46 yes Figure 4 A schematic diagram of a partial structure of a housing in one embodiment is shown; Fig.47 yes Figure 3 A schematic diagram of a partial structure of the motor shown at another angle; Fig.48A yes Figure 3 A partial cross-sectional schematic diagram of an embodiment of the motor shown at line QQ; Fig.48B yes Fig.48A The structure of the motor shown is an enlarged schematic diagram of an embodiment at R. DETAILED DESCRIPTION

[0073] The technical solutions in the implementation modes of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the implementation modes of the present application.

[0074] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "install", "connect", "connect", and "connect" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an electrical connection or a mechanical connection. Among them, "fixed connection" means that the relative position relationship after connection remains unchanged. "Active connection" means that the two parts are connected to each other and can move relative to each other after connection. "Sliding connection" means that the two parts are connected to each other and can slide relative to each other after connection. In addition, the two parts are obtained by an integrated molding process. The integrated structure means that in the process of forming one of the two parts, the part is connected to the other part, and the two parts do not need to be connected together by reprocessing (such as bonding, welding, snap connection, screw connection). The relative arrangement of parts A and B can be that part A is projected along the target direction to obtain projection C, and part B is projected along the target direction to obtain projection D, and projection C and projection D can overlap at least in part. In some embodiments, the majority of overlap can be any of the following: projection C is completely located in projection D. Or, projection D is completely located in projection C. Alternatively, projection C and projection D intersect each other, and the intersection area of ​​projection C and projection D accounts for a ratio of projection C or projection D that is greater than 50%.

[0075] The directional terms mentioned in the embodiments of the present application, such as "top", "bottom", "inside", "outside", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0076] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Multiple" means at least two.

[0077] In addition, in the embodiments of the present application, the limitations of the relative position relationship mentioned, such as parallel, vertical, etc. These limitations are all for the current state of the art, rather than absolutely strict limitations, and a small amount of deviation is allowed, and it is possible to be approximately parallel, approximately vertical, etc. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0078] Figure 1 It is a structural diagram of an electronic device 1000 provided in an embodiment of the present application.

[0079] like Figure 1 As shown, the electronic device 1000 may be a device with a camera module, such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses or a VR helmet.

[0080] It is understandable that, for the convenience of description, the electronic device 1000 is defined as having a first direction X, a second direction Y, and a third direction Z, and the first direction X, the second direction Y, and the third direction Z are different from each other. Exemplarily, the first direction X may be the width direction of the electronic device 1000, the second direction Y may be the height direction of the electronic device 1000, the first direction X may be substantially perpendicular to the second direction Y, and the third direction Z may be the thickness direction of the electronic device 1000. The third direction Z may be substantially perpendicular to the first direction X and the second direction Y. In other embodiments, the coordinate system setting of the electronic device 1000 may be flexibly set according to specific actual needs.

[0081] Figure 2 yes Figure 1 The illustrated electronic device 1000 is a partial cross-sectional schematic diagram of an embodiment of the electronic device 1000 at line AA.

[0082] like Figure 1 and Figure 2 As shown, in some embodiments, the electronic device 1000 may include a camera module 100, a housing 200, and a screen 300. The camera module 100 may be a rear camera module 100 or a front camera module 100. It is understood that the attached Figure 1, Attachment Figure 2 The following related figures only schematically illustrate some components of the electronic device 1000, and the actual shapes, sizes, positions and structures of these components are not limited to the attached figures. Figure 1 , Attachment Figure 2 In addition, the electronic device 1000 may include more or fewer structures. For example, when the electronic device 1000 includes more structures, the electronic device 1000 may also include a heat spreader (not shown). When the electronic device 1000 includes fewer structures, the electronic device 1000 may not include a screen.

[0083] like Figure 1 and Figure 2 As shown, in some embodiments, the screen 300 is mounted on the housing 200, and together with the housing 200, encloses the interior of the electronic device 1000. The interior of the electronic device 1000 can be used to place components of the electronic device 1000, such as a battery, a receiver or a microphone, etc. Among them, the screen 300 can be a flat screen or a curved screen.

[0084] For example, the camera module 100 may be disposed in a housing 200. The housing 200 has a light-transmitting portion 201. The shape of the light-transmitting portion 201 is not limited to the shape of the light-transmitting portion 201. Figure 1 The circular shape shown may also be an elliptical or irregular shape. Light from outside the electronic device 1000 may enter the interior of the electronic device 1000 through the light-transmitting portion 201. The camera module 100 may collect light entering the interior of the electronic device 1000. The light-transmitting portion 201 may be a light-transmitting hole or a transparent portion in the housing 200. The specific structure of the light-transmitting portion 201 is not specifically limited in this application.

[0085] like Figure 2 As shown, exemplarily, the camera module 100 includes a first folding element 10, a focus assembly 20, a second folding element 30, and an image sensor 40 arranged in sequence from the object side to the image side. In other embodiments, the camera module 100 may also include more or fewer structures. For example, when the camera module 100 includes more structures, the camera module 100 may also include a filter (not shown). When the camera module 100 includes fewer structures, the camera module 100 may also not include the second folding element 30.

[0086] Exemplarily, the image sensor 40 is a semiconductor chip, which can also be called a photosensitive chip. The surface of the image sensor 40 contains hundreds of thousands to millions of photodiodes, which will generate electric charge when exposed to light. The image sensor 40 uses the photoelectric conversion function of the photoelectric device to convert the light image on its photosensitive surface into an electrical signal that is proportional to the light image. The photosensitive surface of the image sensor 40 can be arranged facing the second folding element 30. The image sensor 40 can be a charge coupled device, a complementary metal oxide semiconductor, a phototransistor or a thin film transistor, etc. In other embodiments, the image sensor 40 can also be a component of other structures.

[0087] For example, the image sensor 40 may be located at the image side of the focusing assembly 20. Light may pass through the first deflection element 10, the focusing assembly 20, and the second deflection element 30 in sequence before reaching the image sensor 40, thereby achieving imaging.

[0088] Figure 3 yes Figure 2 The shown diagram is a partial structural diagram of a focusing assembly 20 in one embodiment.

[0089] like Figure 2 and Figure 3 As shown, exemplarily, the focusing assembly 20 may include a motor 1 and a lens (not shown), and the lens may be mounted on the motor 1. The motor 1 may drive the lens to move along a first direction X to achieve focusing (AutoFocus, AF) of the camera module 100 and improve the imaging quality of the camera module 100.

[0090] Figure 4 yes Figure 3 The motor 1 shown is a partially exploded schematic diagram of an embodiment. Figure 1 .

[0091] like Figure 3 and Figure 4 As shown, exemplarily, the motor 1 may include a base 11, a carrier 12, a first magnetic member 131, a second magnetic member 132, a first support member 141, a second support member 142, a piezoelectric actuator 15, a circuit board assembly 16 and a housing 17. It is understood that Figure 4 Only some components of the motor 1 are schematically shown, and the actual shapes, sizes, positions and configurations of these components are not subject to any restriction. Figure 4 The motor 1 may include more or fewer structures. For example, when the motor 1 includes fewer structures, the motor 1 may not include the housing 17.

[0092] Figure 5 yes Figure 4 The shown schematic diagram is a structural diagram of the base 11 in one embodiment. Figure 6 yes Figure 5 The shown schematic diagram is a structural diagram of the base 11 at another angle. Figure 7 yes Figure 5 The base 11 is shown in a partially exploded schematic diagram in one embodiment.

[0093] like Figures 5 to 7 As shown, exemplarily, the base 11 may include a base body 111, a first electrical connection end 1121, a second electrical connection end 1122, a third electrical connection end 1123, a fourth electrical connection end 1124, a first trace 1131, and a second trace 1132. It is understood that the attached Figure 5 The following figures only schematically show some components of the base 11, and the actual shapes, sizes, positions and structures of these components are not subject to the attached drawings. Figure 5 Furthermore, the base 11 may include more or fewer structures.

[0094] Exemplarily, the first electrical connection end 1121 , the second electrical connection end 1122 , the third electrical connection end 1123 , and the fourth electrical connection end 1124 may be fixedly connected to the base body 111 at intervals and exposed relative to the base body 111 .

[0095] Exemplarily, the first wire 1131 and the second wire 1132 may be embedded in the base body 111. The first wire 1131 may electrically connect the first electrical connection end 1121 and the third electrical connection end 1123, and the second wire 1132 may electrically connect the second electrical connection end 1122 and the fourth electrical connection end 1124.

[0096] like Figures 5 to 7 As shown, illustratively, the base body 111 may include a bottom plate 1111 , a first side plate 1112 , a second side plate 1113 , a third side plate 1114 and a fourth side plate 1115 .

[0097] Exemplarily, the first side plate 1112, the second side plate 1113, the third side plate 1114 and the fourth side plate 1115 may be located on the same side of the bottom plate 1111 and fixedly connected to the bottom plate 1111. The bottom plate 1111, the first side plate 1112, the second side plate 1113, the third side plate 1114 and the fourth side plate 1115 of the base body 111 may enclose the accommodating space 114 of the base 11.

[0098] Exemplarily, the first side plate 1112 and the third side plate 1114 may be arranged opposite to each other and spaced apart, the first side plate 1112 and the third side plate 1114 may be arranged along the second direction Y, and the second side plate 1113 may be connected between the first side plate 1112 and the third side plate 1114. The second side plate 1113 and the fourth side plate 1115 may be arranged opposite to each other and spaced apart, and the second side plate 1113 and the fourth side plate 1115 may be arranged along the first direction X. In other embodiments, the base body 111 may also adopt other structures.

[0099] It is understandable that, in order to facilitate the description of the specific structure and shape of the base body 111, the present embodiment divides the base body 111 into five parts for description, but it does not affect that the base body 111 can be an integrally formed structure, that is, the bottom plate 1111, the first side plate 1112, the second side plate 1113, the third side plate 1114 and the fourth side plate 1115 can be integrally formed. In other embodiments, the base body 111 can also be formed by different independent structural parts through an assembly process. For example, the first side plate 1112, the second side plate 1113, the third side plate 1114 and the fourth side plate 1115 of the base body 111 can be independent structural parts, and are fixedly connected to the bottom plate 1111 by gluing, welding, etc.

[0100] like Figure 5 As shown, exemplarily, the base 11 may include a first slide groove 1151 and a second slide groove 1152 .

[0101] Exemplarily, the first slide groove 1151 and the second slide groove 1152 may be located on the first side plate 1112. The openings of the first slide groove 1151 and the second slide groove 1152 may both be arranged to face away from the third side plate 1114.

[0102] Exemplarily, the cross section of the first slide groove 1151 may be substantially V-shaped. In other words, the first slide groove 1151 may be a V-shaped groove, and the cross section of the first slide groove 1151 may be substantially perpendicular to the first direction X. The second slide groove 1152 may be substantially flat.

[0103] The V-shaped groove in the embodiment of the present application refers to two opposite side walls of the groove body being arranged at an angle. Moreover, the distance between the two opposite side walls is larger at the opening of the groove body and smaller at the bottom of the groove body, so that the cross-section of the groove body is roughly "V" shaped, or "trapezoidal". The above is only an example of the V-shaped groove and does not constitute a limitation on the structure of the V-shaped groove, as long as the groove body of the V-shaped groove is arranged at an angle relative to the two side walls, and the distance between the two side walls at the opening of the groove body is greater than the distance between the two side walls at the bottom of the groove body.

[0104] In other embodiments, the cross section of the first slide groove 1151 may also be in other shapes, and the first slide groove 1151 may also be other types of grooves. The cross section of the second slide groove 1152 may also be in other shapes, and the second slide groove 1152 may also be other types of grooves. This application does not make specific limitations.

[0105] Exemplarily, the first slide groove 1151 and the second slide groove 1152 may extend along the first direction X. The first slide groove 1151 and the second slide groove 1152 may be arranged along the third direction Z. The first slide groove 1151 and the second slide groove 1152 extending along the first direction X means that the maximum size of the first slide groove 1151 and the maximum size of the second slide groove 1152, for example, the length direction of the first slide groove 1151 and the second slide groove 1152 may be substantially parallel to the first direction X.

[0106] like Figure 5 As shown, illustratively, the base 11 may be provided with a first limiting groove 116 and a second limiting groove 117 .

[0107] For example, the first limiting groove 116 may be located at one end of the fourth side plate 1115 close to the first side plate 1112, and the opening of the first limiting groove 116 may be arranged to face away from the third side plate 1114. The second limiting groove 117 may be located at one end of the second side plate 1113 close to the first side plate 1112, and the opening of the second limiting groove 117 may be arranged to face away from the third side plate 1114.

[0108] like Figure 6 As shown, exemplarily, the base 11 may have an anti-collision protrusion 118. In one embodiment, the anti-collision protrusion 118 may be located on the third side plate 1114. The anti-collision protrusion 118 may protrude in the second direction Y relative to the surface of the third side plate 1114 in a direction away from the third side plate 1114.

[0109] For example, there may be a plurality of anti-collision protrusions 118. In one embodiment, there may be two anti-collision protrusions 118.

[0110] In other embodiments, the number of the anti-collision protrusion 118 may also be one, which is not specifically limited in the present application.

[0111] like Figure 5 and Figure 6 As shown, illustratively, the second side plate 1113 may be provided with a first through hole 119a and a second through hole 119b.

[0112] Exemplarily, the first through hole 119a and the second through hole 119b may penetrate the second side plate 1113 in the first direction X. The first through hole 119a and the second through hole 119b may be arranged at intervals. The first through hole 119a may be located on a side of the second through hole 119b close to the first side plate 1112 .

[0113] like Figure 5 and Figure 6 As shown, exemplarily, the third side plate 1114 may be provided with a third through hole 111a and a fourth through hole 111b. The third through hole 111a and the fourth through hole 111b may penetrate the third side plate 1114 in the second direction Y.

[0114] Figure 8 yes Figure 4 The illustrated structure of the carrier 12 in one embodiment is schematically shown. Fig. 9 yes Figure 8 The structure schematic diagram of the carrier 12 shown in another angle. Fig.10 yes Figure 8 The carrier 12 is shown in a partially exploded schematic diagram in one embodiment.

[0115] like Figures 8 to 10 As shown, exemplarily, the carrier 12 may include a carrier body 121 and a magnetic body 122. The magnetic body 122 may be fixedly connected to the carrier body 121.

[0116] Exemplarily, the carrier body 121 may include a first portion 1211 , a second portion 1212 , and a third portion 1213 .

[0117] Exemplarily, the first portion 1211 and the second portion 1212 may be located on the same side of the third portion 1213 and fixedly connected to the third portion 1213. The first portion 1211 and the second portion 1212 may be arranged opposite to each other and spaced apart. The first portion 1211 and the second portion 1212 may be arranged along the second direction Y. The third portion 1213 may be located on the same side of the first portion 1211 and the second portion 1212 and connected between the first portion 1211 and the second portion 1212. In other embodiments, the carrier body 121 may also adopt other structures.

[0118] It is understandable that, in order to facilitate the description of the specific structure and shape of the carrier body 121, the carrier body 121 is divided into three parts for description in this embodiment, but it does not affect that the carrier body 121 can be an integrally formed structure, that is, the first part 1211, the second part 1212 and the third part 1213 can be integrally formed. In other embodiments, the carrier body 121 can also be formed by different independent structural parts through an assembly process. For example, the first part 1211 and the second part 1212 of the carrier body 121 can be two independent structural parts, and are fixedly connected to the third part 1213 by gluing, welding, etc.

[0119] like Figure 8 and Fig.10 As shown, exemplarily, the carrier body 121 may be provided with a first groove 123. The first groove 123 may be located in the first portion 1211.

[0120] Exemplarily, at least a portion of the magnetic body 122 may be located in the first groove 123 and fixedly connected to a groove wall of the first groove 123 .

[0121] like Figures 8 to 10 As shown, illustratively, the carrier body 121 may include a first supporting groove 125 and a second supporting groove 126 that are spaced apart.

[0122] Exemplarily, the first support groove 125 may be located in the first portion 1211. The opening of the first support groove 125 may face away from the first groove 123. The cross section of the first support groove 125 may be substantially V-shaped, in other words, the first support groove 125 may be a V-shaped groove.

[0123] Exemplarily, the first supporting groove 125 includes a first side wall 1251 and a second side wall 1252. In one embodiment, the first side wall 1251 and the second side wall 1252 are arranged opposite to each other and inclined, and the distance between the first side wall 1251 and the second side wall 1252 at the opening of the first supporting groove 125 is greater than the distance between the first side wall 1251 and the second side wall 1252 at the bottom of the groove body of the first supporting groove 125.

[0124] In one implementation, the cross section of the first supporting groove 125 may be substantially trapezoidal.

[0125] In other embodiments, the cross section of the first support groove 125 may also be substantially in other shapes, for example, the cross section of the first support groove 125 may also be substantially in a quadrilateral shape. This application does not make any specific limitation.

[0126] Exemplarily, the second supporting groove 126 may be located in the second portion 1212. The opening of the second supporting groove 126 may face away from the first groove 123. The cross section of the second supporting groove 126 may be substantially "L"-shaped.

[0127] Exemplarily, the first support groove 125 and the second support groove 126 may extend along the first direction X. The first support groove 125 and the second support groove 126 may be arranged along the second direction Y. The first support groove 125 and the second support groove 126 extending along the first direction X means that the maximum size of the first support groove 125 and the maximum size of the second support groove 126, for example, the length direction of the first support groove 125 and the second support groove 126 may be substantially parallel to the first direction X.

[0128] Exemplarily, the magnetic body 122 may be a magnet or other magnetic components. The magnetic body 122 may be magnetic.

[0129] Fig.11 yes Figure 8 The illustrated embodiment is a partial cross-sectional schematic diagram of a carrier 12 at line BB.

[0130] like Fig. 9 and Fig.11 As shown, the first portion 1211 may be provided with a first mounting groove 1271 , and the second portion 1212 may be provided with a second mounting groove 1272 .

[0131] For example, the first mounting groove 1271 may be located on a side of the first supporting groove 125 close to the first groove 123. The first mounting groove 1271 may be in communication with the first supporting groove 125. The second mounting groove 1272 may be located on a side of the second supporting groove 126 close to the first groove 123. The opening of the second mounting groove 1272 may be disposed away from the first portion 1211.

[0132] like Fig. 9 As shown, illustratively, the second portion 1212 may be provided with a third mounting groove 1273. The opening of the third mounting groove 1273 may be arranged facing away from the first portion 1211.

[0133] Fig.12 yes Figure 3 The motor 1 shown is a partially exploded schematic diagram of an embodiment. Figure 2 . Fig.13 yes Figure 3 The motor 1 shown in FIG. 1 is a schematic diagram of a partial structure of an embodiment of the present invention. Figure 1 . Fig.14 yes Fig.13 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line CC.

[0134] like Figure 12 to Figure 14 As shown, the carrier 12 may be movably connected to the base 11 , and at least a portion of the carrier 12 may be located in the receiving space 114 of the base 11 .

[0135] like Fig.13 As shown, illustratively, the carrier body 121 can be movably connected to the base 11. In one embodiment, the first portion 1211 of the carrier body 121 can be disposed opposite to the first side plate 1112 of the base 11, the second portion 1212 can be disposed opposite to the third side plate 1114, and the third portion 1213 can be disposed opposite to the fourth side plate 1115.

[0136] like Fig.14 As shown, illustratively, the carrier 12 can be movably connected to the base 11 through a first support member 141 and a second support member 142 .

[0137] For example, the first support member 141 may be fixedly connected to the base 11, and at least a portion of the first support member 141 may be located in the first through hole 119a (see Figure 6 ), the first support member 141 may be fixedly connected to the hole wall of the first through hole 119a by gluing or the like. The first support member 141 may be movably connected to the carrier 12. At least a portion of the first support member 141 may be located in the first support groove 125, and the first support member 141 may abut against the first support groove 125. The first support member 141 may abut against the first side wall 1251 and the second side wall 1252. The first support member 141 and the carrier 12 may be zero-matched.

[0138] Exemplarily, the cross section of the first support groove 125 is roughly V-shaped, and the first support member 141 abuts against both side walls of the first support groove 125. In other words, the first support member 141 and both side walls of the first support groove 125 are in a zero-matching state.

[0139] It can be understood that the first support groove 125 can limit the sliding direction of the first support member 141, so that the first support member 141 slides relative to the extension direction of the first support groove 125 (that is, the first direction X), which can reduce the probability of the first support member 141 being offset, thereby reducing the probability of the carrier 12 being offset when moving along the first direction X.

[0140] Exemplarily, the second support member 142 may be fixedly connected to the base 11, at least a portion of the second support member 142 may be located in the second through hole 119b, and the second support member 142 may be fixedly connected to the hole wall of the second through hole 119b by gluing or the like. The second support member 142 may be movably connected to the carrier 12. At least a portion of the second support member 142 may be located in the second support groove 126, and the second support member 142 may abut against the second support groove 126. The second support member 142 and the carrier 12 may be loosely fitted.

[0141] It is understandable that there is a certain movable space between the second supporting member 142 and the second supporting groove 126 , which can reduce the possibility of interference, thereby avoiding the carrier 12 from getting stuck when moving along the first direction X.

[0142] It can be understood that the carrier 12 is movably connected to the base 11 through the first support member 141 and the second support member 142, and the first support groove 125 and the second support groove 126 can limit the movement direction of the carrier 12, so that the carrier 12 can move along the extension direction of the first support member 141 and the second support member 142, that is, the first direction X, reducing the probability of position displacement of the carrier 12 during movement. In addition, the friction between the carrier 12 and the first support member 141 and the friction between the carrier 12 and the second support member 142 are both small, the power required by the carrier 12 is small, and the relative movement between the carrier 12 and the base 11 is smoother.

[0143] In other embodiments, the carrier 12 may also be movably connected to the base 11 in other ways. This application does not limit this in detail.

[0144] like Fig.14 As shown, illustratively, the first magnetic member 131 may be fixedly connected to the carrier 12. In one embodiment, the first magnetic member 131 may be located in the first mounting groove 1271. The first magnetic member 131 may be disposed opposite to the first support member 141.

[0145] Exemplarily, the first support member 141 may be made of a magnetic material. The magnetic material may be a material that can generate magnetic attraction with a magnet or other magnetic components, such as a ferromagnetic material. It is understood that when the magnetic material appears again in the following text, the meaning represented is the same and will not be repeated.

[0146] Exemplarily, there may be a magnetic force between the first magnetic member 131 and the first support member 141 that is substantially perpendicular to the length direction (ie, the third direction Z) of the first support member 141 , and the first magnetic member 131 and the first support member 141 may be attracted to each other.

[0147] like Fig.14 As shown, illustratively, the second magnetic member 132 may be fixedly connected to the carrier 12 .

[0148] For example, the second magnetic member 132 may be located in the second mounting groove 1272. The second magnetic member 132 may be disposed opposite to the second supporting member 142.

[0149] Exemplarily, the second support member 142 may be made of magnetic material.

[0150] Exemplarily, there may be a magnetic force between the second magnetic member 132 and the second support member 142 that is substantially perpendicular to the length direction (ie, the third direction Z) of the first support member 141 , and the second magnetic member 132 and the second support member 142 may be attracted to each other.

[0151] It is understandable that the magnetic force between the first magnetic member 131 and the first support member 141, and the magnetic force between the second magnetic member 132 and the second support member 142 can adsorb the carrier 12 on the first support member 141 and the second support member 142. In this way, along the third direction Z, the carrier 12 can be more closely connected to the first support member 141 and the second support member 142 through the first magnetic member 131 and the second magnetic member 132, preventing the carrier 12 from tilting at a large angle or falling out during the movement, thereby improving the stability and reliability of the carrier 12 during the movement. In addition, by adsorbing the carrier 12 on the first support member 141 and the second support member 142, during the movement of the carrier 12 relative to the base 11 along the first direction X, the noise generated by the carrier 12 and the first support member 141 and the second support member 142 is small, and the user's experience is better.

[0152] Fig.15 yes Fig.13 The motor 1 is shown as a partially exploded schematic diagram at another angle.

[0153] See also Fig.15 , and combined with Fig.14 As shown, illustratively, the groove wall of the first supporting groove 125 may be provided with a first protrusion 1253 and a second protrusion 1254 that are spaced apart. The first supporting member 141 may abut against the first protrusion 1253 and the second protrusion 1254 .

[0154] Exemplarily, a groove wall of the second supporting groove 126 may be provided with a third protrusion 1261 . The second supporting member 142 may abut against the third protrusion 1261 .

[0155] It can be understood that the carrier 12 is in contact with the first support member 141 through the first protrusion 1253 and the second protrusion 1254, and the carrier 12 is in contact with the second support member 142 through the third protrusion 1261. In this way, the three-point contact method makes the connection between the carrier 12 and the first support member 141 and the second support member 142 more stable, improves the stability of the carrier 12 moving relative to the base 11 along the first direction X, and is conducive to improving the imaging quality of the camera module 100.

[0156] Fig.16 yes Figure 4 The piezoelectric actuator 15 is shown in a partially exploded schematic diagram in one embodiment.

[0157] like Fig.16 As shown, exemplarily, the piezoelectric actuator 15 may include a pre-stressing component 151, a resonator 152, a follower 153, a first circuit board 154 and a second circuit board 155. It is understandable that Fig.16 The following figures only schematically illustrate some components of the piezoelectric actuator 15, and the actual shapes, sizes, positions and structures of these components are not subject to the present invention. Fig.16 For example, the piezoelectric actuator 15 may include more or fewer structures.

[0158] Fig.17 yes Fig.16 The structure diagram of the follower 153 shown in another angle. Fig.18 yes Fig.17 The driven member 153 is shown in a partially exploded schematic diagram in one embodiment.

[0159] like Fig.17 and Fig.18 As shown, illustratively, the follower 153 may include a follower body 1531 and a magnetic body 1532. The magnetic body 1532 may be fixedly connected to the follower body 1531. The follower body 1531 may be made of stainless steel.

[0160] In other embodiments, the material of the follower body 1531 may also include other materials, which are not specifically limited in the present application.

[0161] Exemplarily, the follower body 1531 may include a first connection portion 1533 and a second connection portion 1534 .

[0162] Exemplarily, the second connection portion 1534 may be bent and connected to the first connection portion 1533 , and at least a portion thereof may be located on one side of the first connection portion 1533 .

[0163] It is understandable that, in order to facilitate the description of the specific structure and shape of the follower body 1531, the follower body 1531 is described as two parts in this embodiment, but it does not affect that the follower body 1531 can be an integrally formed structure, that is, the first connecting portion 1533 and the second connecting portion 1534 can be integrally formed. In other embodiments, the follower body 1531 can also be formed by different independent structural parts through an assembly process. For example, the first connecting portion 1533 and the second connecting portion 1534 of the follower body 1531 can be two independent structural parts, and are fixedly connected by gluing, welding, etc.

[0164] Exemplarily, the magnetic body 1532 may be made of magnetic material.

[0165] like Fig.17As shown, illustratively, the magnetic body 1532 can be fixedly connected to the second connection portion 1534 of the follower body 1531. In one embodiment, the magnetic body 1532 can be fixedly connected to the second connection portion 1534 by gluing or the like.

[0166] In other embodiments, the magnetic body 1532 may also be fixedly connected to the second connecting portion 1534 in other ways. This application does not limit this in detail.

[0167] Exemplarily, the follower 153 may have a first connection surface 153 a. In one implementation, the first connection surface 153 a may be located on the surface of the magnetic body 1532 .

[0168] like Fig.17 and Fig.18 As shown, illustratively, the follower body 1531 may further include a first sliding shaft portion 1535 and a second sliding shaft portion 1536 .

[0169] Exemplarily, the first sliding shaft portion 1535 and the second sliding shaft portion 1536 may be protruded from a surface of the first connecting portion 1533 facing the second connecting portion 1534 , and may be fixedly connected to the first connecting portion 1533 .

[0170] Exemplarily, the first sliding shaft portion 1535 and the second sliding shaft portion 1536 may be two independent structural members, which are fixedly connected to the first connecting portion 1533 by gluing, welding, or the like.

[0171] In other embodiments, the first sliding shaft portion 1535, the second sliding shaft portion 1536 and the first connecting portion 1533 may also be an integrally formed structure, which is not specifically limited in the present application.

[0172] For example, the cross-sections of the first sliding shaft portion 1535 and the second sliding shaft portion 1536 may both be approximately semicircular.

[0173] It can be understood that compared with the sliding shaft with a roughly circular cross-section, the first sliding shaft portion 1535 and the second sliding shaft portion 1536 with a roughly semicircular cross-section occupy a smaller space in the second direction Y, and are not easily affected by the reliability of the first sliding shaft portion 1535 and the second sliding shaft portion 1536, which is conducive to the miniaturization of the piezoelectric actuator 15 and the motor 1.

[0174] like Fig.17 and Fig.18 As shown, for example, a first boss 1537 and a second boss 1538 spaced apart may be convexly provided on the surface of the first sliding shaft portion 1535 , and a third boss 1539 may be convexly provided on the surface of the second sliding shaft portion 1536 .

[0175] See also Fig.17 , and combined with Fig.16 As shown, illustratively, the first connecting portion 1533 may be provided with a friction groove 153b.

[0176] Exemplarily, the friction groove 153b may be located on a side of the first connection portion 1533 away from the second connection portion 1534. The friction groove 153b may extend along the first direction X. The friction groove 153b may extend along the first direction X, which refers to the maximum size of the friction groove 153b, for example, the length direction of the friction groove 153b may be substantially parallel to the first direction X.

[0177] Fig.19A yes Figure 3 The motor 1 shown is a partially exploded schematic diagram of an embodiment. Figure 3 . Fig.19B yes Figure 3 The motor 1 shown in FIG. 1 is a schematic diagram of a partial structure of an embodiment of the present invention. Figure 2 . Fig. 20A yes Fig.19B The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line DD.

[0178] like Fig.19A , Fig.19B as well as Fig. 20A As shown, illustratively, the follower 153 may be fixedly connected to the carrier 12. The follower 153 may be movably connected to the base 11. It is understandable that the follower 153 may approach the base 11 along the Y-axis direction, thereby being movably connected to the base 11.

[0179] Exemplarily, the follower body 1531 may be movably connected to the base 11. The first connection portion 1533 may be located on a side of the base 11 away from the carrier body 121 and slidably connected to the base 11. A portion of the second connection portion 1534 may span the base 11 and extend into the accommodating space 114 of the base 11.

[0180] Fig. 20B yes Fig. 20A The motor 1 shown is an enlarged schematic diagram of the structure of an embodiment at E.

[0181] like FIG. 19A to FIG. 20B As shown, illustratively, at least a portion of the magnetic body 1532 may be located in the first groove 123. The magnetic body 122 and the magnetic body 1532 may be disposed opposite to each other, and the magnetic body 122 and the magnetic body 1532 may be fixedly connected.

[0182] It is understandable that by arranging the first connection portion 1533 and the second connection portion 1534 on both sides of the base 11, it is possible to simultaneously achieve a movable connection between the follower 153 and the base 11 and a fixed connection between the follower 153 and the carrier. In addition, the second connection portion 1534 extends into the accommodating space 114, which can save space for the motor 1 and is conducive to improving the space utilization of the motor 1.

[0183] It can be understood that by arranging at least a portion of the magnetic body 122 and at least a portion of the magnetic body 1532 to be located in the first groove 123, the space of the motor 1 along the second direction Y can be fully utilized, the space utilization rate of the motor 1 is improved, and the miniaturization of the motor 1 is achieved.

[0184] In other embodiments, the positions of the magnetic body 122 and the magnetic body 1532 can be interchanged. In other words, the follower 153 can include a magnetic body, and the carrier 12 can include a magnetic body. This application does not limit this in detail.

[0185] like Fig. 20B As shown, for example, the follower 153 may have a first connection surface 153a. In one embodiment, the surface of the magnetic body 1532 facing the magnetic body 122 may be the first connection surface 153a.

[0186] like Fig. 20B As shown, illustratively, the carrier 12 may have a second connection surface 12a. In one embodiment, the surface of the magnetic body 122 facing the magnetic body 1532 may be the second connection surface 12a.

[0187] like Fig. 20A and Fig. 20B As shown, illustratively, the first connection surface 153a and the second connection surface 12a can be connected by magnetic attraction. The first connection surface 153a and the second connection surface 12a can be fixedly connected by point contact. In other words, the follower 153 and the carrier 12 can be fixedly connected by point contact. In actual products, the follower 153 or the carrier 12 is deformed or dislocated to a certain extent at the point contact position, resulting in contact in a small area, and it is assumed that the two are fixedly connected by point contact.

[0188] It can be understood that the first connection surface 153a and the second connection surface 12a are magnetically connected through point contact, which can decouple the freedom restriction between the piezoelectric actuator 15 and the carrier 12, and the point contact between the carrier 12 and the follower 153 will only restrict the carrier 12 along the first direction X. In this way, when the position of the follower 153 is offset at a large angle relative to the base 11, the offset is not easily transmitted to the carrier 12 through the point contact between the carrier 12 and the follower 153, the carrier 12 is not easily affected by the follower 153, and the position of the carrier 12 is not easily offset at a large angle relative to the base 11, so that the carrier 12 can stably reciprocate relative to the base 11 along the first direction X, and the reliability of the carrier 12 is high.

[0189] like Fig. 20A and Fig. 20B As shown, illustratively, at least a portion of the first connection surface 153a and at least a portion of the second connection surface 12a may be a curved surface, and the other may be a flat surface. In one embodiment, at least a portion of the first connection surface 153a may be a curved surface, and at least a portion of the second connection surface 12a may be a flat surface. In another embodiment, at least a portion of the first connection surface 153a may be a flat surface, and at least a portion of the second connection surface 12a may be a curved surface.

[0190] It can be understood that by setting at least a portion of the first connection surface 153a and at least a portion of the second connection surface 12a as a curved surface and the other as a flat surface, point contact between the first connection surface 153a and the second connection surface 12a can be achieved, thereby achieving point contact between the follower 153 and the carrier 12. In this way, the position change of the follower 153 in directions other than the first direction X is not easily transmitted to the carrier 12, and the reliability of the carrier 12 is higher.

[0191] Exemplarily, at least a portion of the first connection surface 153 a and at least a portion of the second connection surface 12 a may both be curved surfaces.

[0192] It is understandable that by setting at least a portion of the first connection surface 153a and at least a portion of the second connection surface 12a to be curved surfaces, point contact between the first connection surface 153a and the second connection surface 12a can be achieved, thereby achieving point contact between the follower 153 and the carrier 12. In this way, the position change of the follower 153 in directions other than the first direction X is not easily transmitted to the carrier 12, and the reliability of the carrier 12 is higher.

[0193] Exemplarily, the first connecting surface 153a may be a curved surface, and the second connecting surface 12a may be a flat surface.

[0194] It is understandable that by setting the first connection surface 153a as an arc surface and the second connection surface 12a as a plane, point contact between the first connection surface 153a and the second connection surface 12a can be achieved, thereby achieving point contact between the follower 153 and the carrier 12. In this way, the position change of the follower 153 in directions other than the first direction X is not easily transmitted to the carrier 12, and the reliability of the carrier 12 is higher.

[0195] In other embodiments, the first connection surface 153a and the second connection surface 12a may also be arranged in other ways, for example, the first connection surface 153a may also be a plane, and the second connection surface 12a may also be a curved surface. This application does not make any specific limitations.

[0196] For example, the surface of the magnetic body 1532 facing away from the second connection surface 12a may be a curved surface, a flat surface, or other surfaces, which are not specifically limited in the present application. Fig.21 yes Fig.19B The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line FF.

[0197] like Fig.21 As shown, illustratively, the follower 153 can be movably connected to the base 11.

[0198] Exemplarily, at least a portion of the first sliding shaft portion 1535 may be located in the first sliding groove 1151 , and at least a portion of the second sliding shaft portion 1536 may be located in the second sliding groove 1152 .

[0199] It can be understood that the follower 153 can be movably connected to the base 11 through the first sliding shaft portion 1535 and the second sliding shaft portion 1536. The first sliding groove 1151 and the second sliding groove 1152 both extend along the first direction X, and the first sliding groove 1151 and the second sliding groove 1152 can guide the first sliding shaft portion 1535 and the second sliding shaft portion 1536, so that the first sliding shaft portion 1535 and the second sliding shaft portion 1536 can slide along the first direction X. Since the first sliding shaft portion 1535 and the second sliding shaft portion 1536 are both fixedly connected to the second connecting portion 1534, the follower 153 can be driven to move relative to the base 11 along the first direction X through the first sliding shaft portion 1535 and the second sliding shaft portion 1536.

[0200] It can be understood that since the cross-section of the first sliding shaft portion 1535 and the cross-section of the second sliding shaft portion 1536 can both be roughly semicircular, during the movement of the follower 153 relative to the base 11, the noise generated between the first sliding shaft portion 1535, the second sliding shaft portion 1536 and the base 11 is relatively small, and the user experience is better.

[0201] Exemplarily, the cross section of the first slide groove 1151 is roughly "V"-shaped, and the first slide shaft portion 1535 abuts against both side walls of the first slide groove 1151. In other words, the first slide shaft portion 1535 and both side walls of the first slide groove 1151 are in a zero-matching state.

[0202] It can be understood that the first sliding groove 1151 can limit the sliding direction of the first sliding shaft portion 1535, so that the first sliding shaft portion 1535 slides relative to the extension direction of the first sliding groove 1151 (that is, the first direction X), which can reduce the probability of the first sliding shaft portion 1535 being offset, thereby reducing the probability of the follower 153 being offset when moving along the first direction X, and further reducing the probability of the carrier 12 being offset when moving along the first direction X.

[0203] In addition, there is a certain movable space between the second sliding shaft portion 1536 and the second sliding groove 1152 , which can reduce the possibility of interference, thereby avoiding the phenomenon of the follower 153 being stuck when moving along the first direction X.

[0204] Exemplarily, the first support groove 125 and the second support groove 126 may extend along the first direction X, and the first support groove 125 and the second support groove 126 may be arranged along the second direction Y. The first slide groove 1151 and the second slide groove 1152 may extend along the first direction X, and the first slide groove 1151 and the second slide groove 1152 may be arranged along the third direction Z. The first support groove 125 and the second support groove 126 may be independent of the first slide groove 1151 and the second slide groove 1152, and the arrangement direction of the first support groove 125 and the second support groove 126 may be substantially perpendicular to the arrangement direction of the first slide groove 1151 and the second slide groove 1152.

[0205] It can be understood that the extension direction between the first support groove 125 and the second support groove 126 can be substantially parallel to the extension direction between the first slide groove 1151 and the second slide groove 1152, so that the carrier 12 and the follower 153 can move together along the first direction X. The arrangement direction between the first support groove 125 and the second support groove 126 can be substantially perpendicular to the arrangement direction between the first slide groove 1151 and the second slide groove 1152, and the first support groove 125 and the second support groove 126 connecting the carrier 12 and the first slide groove 1151 and the second slide groove 1152 connecting the piezoelectric actuator 15 are independent of each other and are substantially orthogonal in layout, which can ensure the movement stability of the carrier 12 and the follower 153.

[0206] See also Fig.21 , and combined with Fig.17 and Fig.18As shown, the first boss 1537 of the first sliding shaft portion 1535 and the second boss 1538 of the first sliding shaft portion 1535 can abut against two groove walls of the first sliding groove 1151 . The third boss 1539 of the second sliding shaft portion 1536 can abut against the second sliding groove 1152 .

[0207] It can be understood that the base 11 and the first sliding shaft portion 1535 are in contact through the first boss 1537 and the second boss 1538, and the base 11 and the second sliding shaft portion 1536 are in contact through the third boss 1539. The three-point contact method makes the connection between the base 11 and the first sliding shaft portion 1535 and the second sliding shaft portion 1536 more stable, thereby improving the stability of the follower 153 moving relative to the base 11 along the first direction X, thereby improving the stability of the carrier 12 moving relative to the base 11 along the first direction X.

[0208] Fig.22A yes Fig.19B The shown diagram is a partial cross-sectional view of another embodiment of the motor 1 at line DD. Fig. 22B yes Fig.22A The structure of the motor 1 shown is an enlarged schematic diagram of an embodiment at G.

[0209] like Fig.22A and Fig. 22B As shown, exemplarily, the first connection surface 153a may include a plane 153c and a curved surface 153d, and the curved surface 153d may be connected to the plane 153c. The second connection surface 12a may be a plane.

[0210] Exemplarily, the arc surface 153d of the first connection surface 153a may be magnetically connected to the second connection surface 12a.

[0211] It is understandable that by setting the first connection surface 153a as a curved surface 153d and the second connection surface 12a as a plane, point contact between the first connection surface 153a and the second connection surface 12a can be achieved, thereby achieving point contact between the magnetic body 1532 and the magnetic body 122, and further achieving point contact between the follower 153 and the carrier 12. In this way, the position change of the follower 153 in directions other than the first direction X is not easily transmitted to the carrier 12, and the carrier 12 is not easy to move relative to the base 11 in directions other than the first direction X, and the reliability of the carrier 12 is higher.

[0212] like Fig.22A and Fig. 22BAs shown, illustratively, the magnetic body 1532 may include a magnetic body body 1501 and a convex hull 1502. The surface of the magnetic body body 1501 facing the magnetic body 122 may be a plane. The convex hull 1502 may be convexly arranged on the surface of the magnetic body body 1501 facing the magnetic body 122, and fixedly connected to the magnetic body body 1501.

[0213] Exemplarily, the convex bump 1502 can achieve magnetic connection with the magnetic body 122 through point contact.

[0214] For example, the surface of the magnetic body 1532 facing away from the second connection surface 12a may be a curved surface, a flat surface, or other surfaces, which are not specifically limited in the present application.

[0215] Fig.23 yes Fig.16 The structure of the resonator 152 shown in one embodiment is schematically shown. Fig.24 yes Fig.23 A partially exploded schematic diagram of a resonator 152 in one embodiment is shown.

[0216] like Fig.23 and Fig.24 As shown, illustratively, the resonator 152 may include an elastic body 1521, a driving foot 1522, a first piezoelectric ceramic 1523, and a second piezoelectric ceramic 1524. It can be understood that, Fig.23 , Fig.24 The following figures only schematically illustrate some of the components of the resonator 152, and the actual shapes, sizes, positions and structures of these components are not subject to any restriction. Fig.23 , Fig.24 For example, the resonator 152 may include more or fewer structures.

[0217] Exemplarily, the elastic body 1521 may include a first surface 152a and a second surface 152b disposed in opposite directions.

[0218] Exemplarily, the driving foot 1522 may be fixedly connected to the first surface 152a. The first piezoelectric ceramic 1523 and the second piezoelectric ceramic 1524 may be fixedly connected to the second surface 152b at intervals.

[0219] It can be understood that the first piezoelectric ceramic 1523 and the second piezoelectric ceramic 1524 can be deformed when powered on, and the elastic body 1521 can convert the deformation into macroscopic displacement.

[0220] Exemplarily, the elastomer 1521 may include a driving part 1525, a first excitation part 1526, and a second excitation part 1527. In one embodiment, the driving part 1525, the first excitation part 1526, and the second excitation part 1527 may be generally in the shape of the Chinese character "Wang".

[0221] In other embodiments, the driving part 1525, the first excitation part 1526, and the second excitation part 1527 may also be generally in other shapes. Specifically, the present application does not make any limitation.

[0222] Exemplarily, the driving foot 1522 may be located on one side of the driving part 1525 and fixedly connected to the driving part 1525. The first piezoelectric ceramic 1523 may be located on the side of the first excitation part 1526 away from the driving foot 1522 and fixedly connected to the first excitation part 1526. The second piezoelectric ceramic 1524 may be located on the side of the second excitation part 1527 away from the driving foot 1522 and fixedly connected to the second excitation part 1527.

[0223] Exemplarily, electrode layers (not shown in the figure) may be coated on the surfaces of the first piezoelectric ceramic 1523 and the second piezoelectric ceramic 1524. The first piezoelectric ceramic 1523 and the second piezoelectric ceramic 1524 may be polarized in their thickness direction (i.e., the second direction Y), so as to deform in a direction substantially perpendicular to their thickness direction (i.e., the first direction X), for exciting the symmetric bending vibration mode and the antisymmetric bending vibration mode of the first excitation part 1526 and the second excitation part 1527.

[0224] Exemplarily, the vibrations of the first excitation part 1526 and the second excitation part 1527 may drive the driving part 1525 to perform reverse bending vibration, and may also drive the driving foot 1522 to perform a transverse vibration substantially parallel to the plane where the elastomer 1521 is located (i.e., the X-Z plane) and along the length direction of the elastomer 1521 (i.e., the first direction X).

[0225] Fig.25 Yes Fig.16 Partial structural schematic diagram of the preloading assembly 151 in one embodiment. Fig.26 Yes Fig.25 Partial exploded schematic diagram of the preloading assembly 151 in one embodiment.

[0226] Please refer to Fig.25 And Fig.26 And in combination with Fig.16 As shown, exemplarily, the preloading assembly 151 may include a bracket 156, a reed 157, and a pressure column 158.

[0227] Exemplarily, the bracket 156 may include a first end 1561, a middle part 1562, and a second end 1563 that are connected in sequence.

[0228] Exemplarily, the reed 157 may include a first end 1571, a middle portion 1572, and a second end 1573 connected in sequence. In one embodiment, the first end 1571, the middle portion 1572, and the second end 1573 of the reed 157 may all be elastically deformed. Elastic deformation refers to the change in relative position between points of a solid when an external force is applied, and when the external force is removed, the solid can return to its original state. In other words, after the external force applied to the reed 157 is removed, the reed 157 can return to its original state.

[0229] like Fig.25 As shown, illustratively, the reed 157 can be fixedly connected to the bracket 156. In one embodiment, the middle portion 1572 of the reed 157 can be fixedly connected to the first end 1561 of the bracket 156.

[0230] Exemplarily, the reed 157 can be fixedly connected to the bracket 156 by gluing, welding, etc. In other embodiments, the reed 157 can also be fixedly connected to the bracket 156 by other methods.

[0231] Fig. 27 yes Figure 4 The illustrated diagram is a partial structural diagram of a piezoelectric actuator 15 in one embodiment.

[0232] like Fig. 27 As shown, for example, the resonator 152 can be fixedly connected to the bracket 156. In one embodiment, the resonator 152 can be fixedly connected to the middle portion 1562 of the bracket 156.

[0233] Exemplarily, the elastic body 1521 may be fixedly connected to the pre-pressing assembly 151. In one embodiment, the elastic body 1521 may be fixedly connected to the bracket 156.

[0234] It can be understood that the pre-pressing component 151 can fix and support the elastic body 1521 .

[0235] Fig.28 yes Figure 4 The illustrated diagram is a partial structural diagram of a piezoelectric actuator 15 in one embodiment. Fig.29 yes Figure 3 The motor 1 shown is a partially exploded schematic diagram of an embodiment. Figure 4 . Fig.30 yes Figure 3 The motor 1 is shown in a partially exploded view in one embodiment. Figure 5 . Fig.31 yes Figure 3 The motor 1 shown in FIG. 1 is a schematic diagram of a partial structure of an embodiment of the present invention. Figure 3 .

[0236] like Figure 28 to Figure 31 As shown, exemplarily, the first circuit board 154 may include a first connection end 1541 , a first middle end 1542 , and a second connection end 1543 that are sequentially connected.

[0237] Exemplarily, the first connection end 1541 of the first circuit board 154 can be fixedly connected and electrically connected to the first piezoelectric ceramic 1523. The first middle end 1542 of the first circuit board 154 can be fixedly connected to the bracket 156. The second connection end 1543 of the first circuit board 154 can be located between the bracket 156 and the base 11.

[0238] Exemplarily, the second circuit board 155 may include a third connection end 1551 , a second middle end 1552 , and a fourth connection end 1553 .

[0239] Exemplarily, the third connection end 1551 of the second circuit board 155 can be fixedly connected and electrically connected to the second piezoelectric ceramic 1524. The second middle end 1552 of the second circuit board 155 can be fixedly connected to the bracket 156. The fourth connection end 1553 of the second circuit board 155 can be located between the bracket 156 and the base 11.

[0240] See also Fig.31 , and combined with Figure 7 As shown, illustratively, the piezoelectric actuator 15 may be electrically connected to the base 11 .

[0241] Exemplarily, the second connection end 1543 of the first circuit board 154 can be electrically connected to the first electrical connection end 1121. The first trace 1131 can electrically connect the first electrical connection end 1121 and the third electrical connection end 1123. In other words, the first piezoelectric ceramic 1523 of the resonator 152 can be electrically connected to the third electrical connection end 1123 through the first circuit board 154, the first electrical connection end 1121, and the first trace 1131.

[0242] Exemplarily, the fourth connection end 1553 of the second circuit board 155 can be electrically connected to the second electrical connection end 1122. The second trace 1132 can electrically connect the second electrical connection end 1122 and the fourth electrical connection end 1124. In other words, the first piezoelectric ceramic 1523 of the resonator 152 can be electrically connected to the fourth electrical connection end 1124 through the second circuit board 155, the second electrical connection end 1122, and the second trace 1132.

[0243] Fig.32 yes Fig.31 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line HH.

[0244] like Fig.31 and Fig.32As shown, illustratively, the piezoelectric actuator 15 may be movably connected to the base 11 and fixedly connected to the carrier 12. The piezoelectric actuator 15 may be used to drive the carrier 12 to move along the first direction X relative to the base 11.

[0245] Exemplarily, the follower 153 may be movably connected to the base 11 , and the resonator 152 may be movably connected to the follower 153 . In one implementation, the resonator 152 may be movably connected to the follower 153 via a driving foot 1522 .

[0246] Exemplarily, the pre-pressing assembly 151 may be fixed to the base 11 .

[0247] like Fig.30 and Fig.32 As shown, for example, the first end 1561 of the bracket 156 can be fixedly connected to the base 11, and the first end 1571 and the second end 1573 of the reed 157 can be fixedly connected to the base 11. The second end 1563 of the bracket 156 (see Fig.25 ) can be fixedly connected to the base 11, the pressure column 158 can be fixedly connected to the base 11, and the second end 1563 of the bracket 156 can be fixedly connected to the base 11.

[0248] It is understandable that the spring 157 elastically fixes the first end 1561 of the bracket 156 on the base 11, and the reverse K value of the spring 157 is small, which can avoid large variations in the pre-pressure of the spring 157. In addition, the pressure column 158 fixes the second end 1563 of the bracket 156 on the base 11, and the pressure column 158 can limit the bracket 156, thereby preventing the spring 157 from undergoing non-elastic deformation. Among them, non-elastic deformation refers to the change in the relative position between points of a solid due to an external force, and when the external force is removed, the solid cannot return to its original state.

[0249] like Fig.31 and Fig.32 As shown, illustratively, the pre-pressing assembly 151 can be used to press the driving foot 1522 of the resonator 152 onto the driven member 153. The driving foot 1522 of the resonator 152 can be located in the friction groove 153b of the driven member 153 and contact the groove wall of the friction groove 153b.

[0250] It is understandable that the driving foot 1522 of the resonator 152 can rub against the groove wall of the friction groove 153 b, thereby generating a force along the first direction X, thereby driving the driven member 153 to move along the first direction X relative to the resonator 152 .

[0251] It can be understood that the pre-stressing component 151 can be used to provide a pre-stressing force to the resonator 152 to abut against the follower 153, so that the resonator 152 can be tightly abutted against the follower 153 under the action of the pre-stressing force, which is conducive to transmitting the macroscopic displacement generated by the microscopic vibration of the resonator 152 to the follower 153.

[0252] Exemplarily, the resonator 152 is used to drive the driven member 153 to drive the carrier 12 to move along the first direction X relative to the base 11 when powered on.

[0253] It is understandable that the piezoelectric actuator 15 can control the carrier 12 to move relative to the base 11 along the first direction X, thereby realizing the camera module 100 (see Figure 2 ) focusing. In this embodiment, the piezoelectric actuator 15 can drive the carrier 12 to move, so the motor 1 of this embodiment is not a moving magnet motor or a moving coil motor. In this way, electromagnetic interference between multiple different magnets can be avoided. Since there is no need to increase the size of the motor 1 to make room to avoid magnetic interference, the problem of the large size of the motor 1 can be avoided, which is conducive to the miniaturization of the motor 1 of this embodiment.

[0254] like Fig.32 As shown, illustratively, compared with the second supporting groove 126, the first supporting groove 125 can be closer to the piezoelectric actuator 15. The first supporting member 141 abuts against both side walls of the first supporting groove 125, and the first supporting member 141 and both side walls of the first supporting groove 125 are in a zero-matching state.

[0255] It can be understood that by setting the first supporting groove 125 on the side close to the piezoelectric actuator 15, the piezoelectric actuator 15 can be located on the side where the carrier 12 and the first supporting member 141 are tightly matched. In this way, the stability of the carrier 12 during movement can be improved, and the carrier 12 can be prevented from tilting at a large angle, which is beneficial to improving the reliability of the carrier 12.

[0256] Exemplarily, the second support member 142 abuts against one side wall of the second support groove 126 , and the second support member 142 and one side wall of the second support groove 126 are in a zero-matching state.

[0257] In this way, there can be a gap between the second support member 142 and the second support groove 126, which allows the second support member 142 to have a certain amount of space for movement on a surface substantially perpendicular to the first direction X, thereby reducing the possibility of interference and avoiding jamming when the carrier 12 moves along the first direction X.

[0258] Fig.33A yes Figure 4 The illustrated piezoelectric actuator 15 is a partial cross-sectional schematic diagram of an embodiment at line II. Fig.33B yes Fig.33A The piezoelectric actuator 15 shown is an enlarged schematic structural diagram of an implementation method at J.

[0259] like Fig.33A and Fig.33B As shown, illustratively, the surface of the driving foot 1522 may be provided with a first wear-resistant layer 1528 . The first wear-resistant layer 1528 may abut against the follower 153 .

[0260] For example, the material of the first wear-resistant layer 1528 may include nitride. The first wear-resistant layer 1528 may be formed on the surface of the driving foot 1522 by a stainless steel surface nitriding technology.

[0261] It is understandable that stainless steel and nitride have relatively high hardness, and the first wear-resistant layer 1528 also has relatively high hardness, which can improve the hardness of the surface of the driving foot 1522. In this way, during the friction between the driving foot 1522 and the driven member 153, the driving foot 1522 is not likely to be worn or chipped, and black spots or shadows are not likely to appear in the images or videos taken by the camera module 100, and the imaging quality of the camera module 100 is relatively high.

[0262] In other embodiments, the material of the first wear-resistant layer 1528 may also include other materials, which are not specifically limited in the present application.

[0263] For example, the groove wall of the friction groove 153 b of the driven member 153 may be provided with a second wear-resistant layer 153 e , and the second wear-resistant layer 153 e may abut against the first wear-resistant layer 1528 of the driving foot 1522 .

[0264] For example, the material of the second wear-resistant layer 153e may include nitride. The second wear-resistant layer 153e may be formed on the surface of the driven member 153 by using a stainless steel surface nitriding technology.

[0265] It is understandable that the hardness of stainless steel is relatively high, and the hardness of the second wear-resistant layer 153e is also relatively high, which can improve the hardness of the groove wall of the friction groove 153b of the driven member 153. In this way, during the friction between the driving foot 1522 and the driven member 153, the driven member 153 is not prone to wear or chipping, and the camera module 100 (see Figure 2 ) Black spots or black shadows are not likely to appear in the images or videos taken, and the imaging quality of the camera module 100 is relatively high.

[0266] In other embodiments, the material of the second wear-resistant layer 153e may also include other materials, which are not specifically limited in this application.

[0267] In other embodiments, the driven member 153 may not be provided with the friction groove 153b, and the second wear-resistant layer 153e may be located on the surface of the first connecting portion 1533 of the driven member 153 facing the driving foot 1522 of the resonator 152. The present application does not limit this in detail.

[0268] Fig.34A yes Figure 4 The piezoelectric actuator 15 is shown in a partial cross-sectional schematic view of another embodiment at line II. Fig.34B yes Fig.34A The piezoelectric actuator 15 is shown as an enlarged schematic diagram of an embodiment of the structure at K.

[0269] like Fig.34A and Fig.34B As shown, illustratively, the groove wall of the friction groove 153 b of the driven member 153 may be provided with a ceramic layer 153 f. The ceramic layer 153 f may abut against the first wear-resistant layer 1528 of the driving foot 1522 .

[0270] In one implementation, the ceramic layer 153f may cover the bottom of the groove wall of the friction groove 153b. The driving foot 1522 may contact the surface of the ceramic layer 153f.

[0271] Exemplarily, the material of the ceramic layer 153f may include ceramic.

[0272] It is understandable that the hardness of ceramic is relatively high, and the hardness of the ceramic layer 153f is also relatively high, which can improve the hardness of the groove wall of the friction groove 153b of the driven member 153. In this way, during the friction between the driving foot 1522 and the driven member 153, the driven member 153 is not prone to wear or chipping, and the camera module 100 (see Figure 2 ) Black spots or black shadows are not likely to appear in the images or videos taken, and the imaging quality of the camera module 100 is relatively high.

[0273] In other implementations, the material of the ceramic layer 153f may also include other materials, which are not specifically limited in this application.

[0274] Exemplarily, the thickness T of the ceramic layer 153 f may satisfy: T≧0.05 mm. For example, T may be equal to 0.05 mm, 0.1 mm, 0.18 mm, 0.23 mm, or 0.3 mm.

[0275] It is understood that by setting the thickness T of the ceramic layer 153f to be greater than or equal to 0.05 mm, the thickness of the ceramic layer 153f is relatively large, and the hardness of the ceramic layer 153f is also relatively large, which can improve the hardness of the groove wall of the friction groove 153b of the driven member 153. In this way, during the friction between the driving foot 1522 and the driven member 153, the driven member 153 is not prone to wear or chipping, and the camera module 100 (see Figure 2 ) Black spots or black shadows are not likely to appear in the images or videos taken, and the imaging quality of the camera module 100 is relatively high.

[0276] In other implementations, the thickness of the ceramic layer 153f may also meet other ranges, which is not specifically limited in the present application.

[0277] In other embodiments, the driven member 153 may not be provided with the friction groove 153b, and the ceramic layer 153f may be located on the surface of the first connecting portion 1533 of the driven member 153 facing the driving foot 1522 of the resonator 152. The present application does not limit this in detail.

[0278] Fig.35 yes Fig.31 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line LL. Fig.36 yes Fig.31 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line MM.

[0279] like Fig.35 and Fig.36 As shown, illustratively, the pressure column 158 can be fixedly connected to the base 11 , and the pressure column 158 can contact the second end 1563 of the bracket 156 .

[0280] Exemplarily, the pressure column 158 can be fixedly connected to the base 11 by gluing, welding, or the like.

[0281] In other embodiments, the pressure column 158 may also be fixedly connected to the base 11 by riveting or other methods. This application does not limit this in detail.

[0282] For example, a cross section of the pressure column 158 that is substantially perpendicular to the third direction Z may be substantially circular.

[0283] It is understandable that the contact between the pressure column 158 and the second end 1563 of the bracket 156 can be a contact between an arc surface and a plane. In other words, the contact between the pressure column 158 and the bracket 156 can be a line contact. In actual products, the pressure column 158 or the bracket 156 may be deformed or misaligned to a certain extent at the position of the line contact, resulting in a small area of ​​contact. It can also be assumed that the two are fixedly connected by line contact.

[0284] It can be understood that the contact between the pressure column 158 and the bracket 156 is a line contact, which can improve the torsional stability of the bracket 156, so that the pre-pressure component 151 can control the driving foot 1522 of the resonator 152 (see Fig.32 ) provides a pre-pressure for squeezing the follower 153, and the resonator 152 can be closely abutted against the follower 153 under the action of the pre-pressure, which is conducive to ensuring that the macroscopic displacement generated by the microscopic vibration of the resonator 152 is transmitted to the follower 153. In addition, since the contact between the pressure column 158 and the bracket 156 is a line contact, the bracket 156 has a strong anti-swing ability, thereby avoiding the output fluctuation and noise caused by the swing of the bracket 156, and the user's experience is better.

[0285] In other embodiments, the cross section of the pressure column 158 may also be roughly in other shapes, for example, the cross section of the pressure column 158 may also be roughly semicircular, and the arc surface of the pressure column 158 contacts the second end 1563 of the bracket 156. In this case, the contact between the pressure column 158 and the bracket 156 may also be line contact. This application does not limit this in detail.

[0286] Fig.37 yes Fig.31 The shown diagram is a partial cross-sectional view of another embodiment of the motor 1 at line MM.

[0287] like Fig.37 As shown, illustratively, the cross section of the pressure column 158 approximately perpendicular to the third direction Z may be approximately polygonal. In one embodiment, the cross section of the pressure column 158 may be approximately hexagonal. The hexagon may be a regular hexagon or other forms of hexagon. This application does not specifically limit this.

[0288] It can be understood that the contact between the pressure column 158 and the bracket 156 is a surface contact, which can improve the torsional stability of the bracket 156, so that the pre-pressure component 151 can control the driving foot 1522 of the resonator 152 (see Fig.32 ) provides a pre-pressure to squeeze the follower 153. The resonator 152 can be tightly abutted against the follower 153 under the action of the pre-pressure, which is beneficial to ensure that the macroscopic displacement generated by the microscopic vibration of the resonator 152 is transmitted to the follower 153.

[0289] In other embodiments, the cross section of the pressure column 158 may also be roughly in other shapes, for example, the cross section of the pressure column 158 may also be roughly in a quadrilateral, a pentagon or an irregular shape. In this case, the contact between the pressure column 158 and the bracket 156 may also be surface contact. This application does not make any specific limitations.

[0290] Fig.38 yes Fig.31The motor 1 is shown as a schematic structural diagram at another angle. Fig.39 yes Fig.38 The motor 1 is shown in a partially exploded schematic diagram in one embodiment.

[0291] like Fig.38 and Fig.39 As shown, illustratively, the bracket 156 can be located between the second side plate 1113 and the fourth side plate 1115 of the base 11. In one embodiment, the middle portion 1562 of the bracket 156 can abut against one end of the second side plate 1113 close to the first side plate 1112 and one end of the fourth side plate 1115 close to the first side plate 1112, respectively.

[0292] It can be understood that the second side plate 1113 and the fourth side plate 1115 of the base 11 can limit the bracket 156 along the first direction X, and the bracket 156 is not easy to fall off from the base 11, and the reliability of the bracket 156 is better. When the follower 153 moves relative to the base 11, the bracket 156 can provide a stable pre-pressure to the resonator 152, so that the driving foot 1522 of the resonator 152 (see Fig.32 ) can be in close contact with the follower 153, and the connection between the resonator 152 and the follower 153 is more reliable.

[0293] Exemplarily, the first end 1561 of the bracket 156 may be fixedly connected in the first limiting groove 116 , and the second end 1563 of the bracket 156 may be fixedly connected in the second limiting groove 117 .

[0294] It is understandable that the base 11 can limit the bracket 156 along the third direction Z, and the bracket 156 is not easy to fall off from the base 11, and the reliability of the bracket 156 is better. When the follower 153 moves relative to the base 11, the bracket 156 can provide a stable pre-pressure to the resonator 152, so that the driving foot 1522 (see Fig.32 ) can be in close contact with the follower 153, and the connection between the resonator 152 and the follower 153 is more reliable.

[0295] Fig.40 yes Figure 4 The circuit board assembly 16 is shown as a partial structural schematic diagram at another angle. Fig.41 yes Fig.40 The circuit board assembly 16 is shown as a partial structural schematic diagram at another angle. Fig.42 yes Figure 3 The motor 1 shown in FIG. 1 is a schematic diagram of a partial structure of an embodiment of the present invention. Figure 4 . Fig.43 yes Fig.42 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line NN.

[0296] like Figure 40 to Figure 43 As shown, illustratively, the circuit board assembly 16 may include a main circuit board 161 , a position sensor 162 , a third magnetic member 163 , and an electronic device 164 .

[0297] like Fig.41 As shown, illustratively, the position sensor 162 can be fixedly connected to one side of the main circuit board 161 and electrically connected to the main circuit board 161 .

[0298] like Fig.42 and Fig.43 As shown, illustratively, the circuit board assembly 16 may be fixedly connected to the base 11 and located on a side of the base 11 away from the piezoelectric actuator 15 .

[0299] Exemplarily, the main circuit board 161 may be fixedly connected to the base 11 and located on a side of the base 11 away from the piezoelectric actuator 15 .

[0300] Exemplarily, the main circuit board 161 may be fixedly connected to the base 11 by gluing or the like. In other embodiments, the main circuit board 161 may also be fixedly connected to the base 11 by other means. This application does not limit this in detail.

[0301] like Fig.43 As shown, for example, at least a portion of the position sensor 162 may be located at the third through hole 111a and the fourth through hole 111b of the base 11 (see Figure 6 )Inside.

[0302] like Fig.43 As shown, illustratively, the third magnetic member 163 may be fixedly connected to the carrier 12. In one embodiment, at least a portion of the third magnetic member 163 may be located in the third mounting groove 1273 of the carrier 12.

[0303] like Fig.43 As shown, illustratively, the position sensor 162 can be arranged opposite to the third magnetic member 163 .

[0304] Exemplarily, the position sensor 162 may be a tunnel magnetoresistance (TMR) sensor or a Hall sensor.

[0305] Exemplarily, the working principle of the TMR sensor is based on the magnetic tunnel resistance effect, that is, a structure is formed by sandwiching two magnetic layers between a non-magnetic layer. When an external magnetic field (for example, the magnetic field provided by the third magnetic member 163) interacts with the magnetic field in the magnetic layer, the direction of the magnetic field changes, thereby changing the value of the magnetic tunnel resistance. This change in resistance value is related to the change in the external magnetic field, and can therefore be used to detect the strength and direction of the magnetic field.

[0306] For example, the working principle of the Hall sensor is based on the Hall effect, that is, when current passes through a conductor, if the conductor is in a magnetic field (for example, the magnetic field provided by the third magnetic member 163), a certain potential difference will be generated on both sides of the conductor. This potential difference is related to the strength and direction of the magnetic field, and can therefore be used to detect the strength and direction of the magnetic field.

[0307] It can be understood that the position sensor 162 can detect the changes in the magnetic field of the third magnetic part 163, and the processor can obtain the real-time position of the carrier 12 based on the detection result of the position sensor 162, so as to achieve precise control of the displacement of the carrier 12, and then achieve closed-loop control of the carrier 12, and the reliability of the carrier 12 is relatively high.

[0308] In other implementations, the position sensor 162 may also be other types of sensors, which are not specifically limited in this application.

[0309] like Fig.40 and Fig.42 As shown, the electronic device 164 can be fixedly connected to the main circuit board 161 and located on a side of the main circuit board 161 away from the base 11 .

[0310] Exemplarily, in the second direction Y, the height of the anti-collision protrusion 118 of the base 11 may be greater than the height of the electronic device 164 .

[0311] It can be understood that, since the height of the anti-collision protrusion 118 along the second direction Y is greater than the height of the electronic device 164 along the second direction Y, the anti-collision protrusion 118 can protect the electronic device 164. Compared with the electronic device 164, other components are more likely to collide with the anti-collision protrusion 118, and the electronic device 164 is not likely to collide with other components. The electronic device 164 is not likely to malfunction or even be damaged due to the collision, and the reliability of the electronic device 164 and the circuit board assembly 16 is higher.

[0312] See also Fig.42 and Fig.43 , and combined with Fig.31 As shown, illustratively, the third electrical connection terminal 1123 and the fourth electrical connection terminal 1124 can be electrically connected to the main circuit board 161 .

[0313] Exemplarily, the first circuit board 154 can be electrically connected to the main circuit board 161 through the first electrical connection terminal 1121, the first trace 1131, and the third electrical connection terminal 1123. The second circuit board 155 can be electrically connected to the main circuit board 161 through the second electrical connection terminal 1122, the second trace 1132, and the fourth electrical connection terminal 1124. In this way, the piezoelectric actuator 15 can be electrically connected to the circuit board assembly 16.

[0314] It is understandable that the piezoelectric actuator 15 can be electrically connected to the circuit board assembly 16 through the base 11. The piezoelectric actuator 15 can achieve electrical connection without the need for additional structural parts, which is beneficial to reducing the number of structural parts of the motor 1 and thus facilitating the miniaturization of the motor 1.

[0315] Fig.44 yes Figure 4 The shown diagram is a partial structural diagram of a motor 1 in one embodiment. Fig.45A yes Figure 3 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line OO. Fig.45B yes Fig.45A The structure of the motor 1 shown is an enlarged schematic diagram of an embodiment at P.

[0316] like Fig.44 , Fig.45A as well as Fig.45B As shown, exemplarily, the motor 1 may further include a first dust catching glue 181 .

[0317] Exemplarily, the first dust catching glue 181 can be fixedly connected to the follower 153 and located on a side of the follower 153 close to the resonator 152. In one embodiment, the first dust catching glue 181 can be fixedly connected to the first connecting portion 1533 of the follower 153 and located on a side of the first connecting portion 1533 of the follower 153 away from the second connecting portion 1534.

[0318] It is understandable that the first dust-catching glue 181 can capture the debris generated by the friction between the driving foot 1522 of the resonator 152 and the driven member 153, and prevent the debris from falling onto the lens, thereby preventing the camera module 100 (see Figure 2 ) to prevent black spots or shadows from appearing in the image captured, thereby improving the imaging quality of the camera module 100.

[0319] Fig.46 yes Figure 4 The shown schematic diagram is a partial structure of the housing 17 in one embodiment.

[0320] like Fig.46As shown, illustratively, the housing 17 may include a top portion 171 , a first side portion 172 , a second side portion 173 , a third side portion 174 and a fourth side portion 175 .

[0321] Exemplarily, the first side portion 172, the second side portion 173, the third side portion 174 and the fourth side portion 175 may be located on the same side of the top portion 171 and fixedly connected to the top portion 171. The first side portion 172 and the third side portion 174 may be arranged oppositely and spaced apart, and the second side portion 173 may be connected between the first side portion 172 and the third side portion 174. The second side portion 173 and the fourth side portion 175 may be arranged oppositely and spaced apart, and the first side portion 172 may be connected between the second side portion 173 and the fourth side portion 175. In other embodiments, the housing 17 may also adopt other structures. Specifically, this application does not limit this.

[0322] It is understandable that, in order to facilitate the description of the specific structure and shape of the housing 17, the housing 17 is divided into five parts for description in this embodiment, but it does not affect that the housing 17 can be an integrally formed structure, that is, the top 171, the first side 172, the second side 173, the third side 174 and the fourth side 175 can be integrally formed. In other embodiments, the housing 17 can also be formed by different independent structural parts through an assembly process. For example, the first side 172, the second side 173, the third side 174 and the fourth side 175 of the housing 17 can be independent structural parts, and are fixedly connected to the top 171 by gluing, welding, etc.

[0323] Fig.47 yes Figure 3 The schematic diagram of the partial structure of the motor 1 shown in another angle. Fig.48A yes Figure 3 The shown diagram is a partial cross-sectional view of an embodiment of the motor 1 at line QQ.

[0324] like Fig.47 and Fig.48A As shown, illustratively, the motor 1 may further include a second dust catching glue 182 and a third dust catching glue 183 .

[0325] like Fig.48A As shown, illustratively, the second dust catching glue 182 may be located on a bottom plate 1111 fixedly connected to the base 11 , and located on a side of the bottom plate 1111 close to the first side plate 1112 .

[0326] It is understandable that the second dust-catching glue 182 can capture the driving foot 1522 of the resonator 152 (see Fig.45A ) and follower 153 (see Fig.45A ) to prevent the debris generated by friction from falling onto the lens, thereby preventing the camera module 100 (see Figure 2 ) to prevent black spots or shadows from appearing in the image captured, thereby improving the imaging quality of the camera module 100.

[0327] Fig.48B yes Fig.48A The structure of the motor 1 shown is an enlarged schematic diagram of an embodiment at R.

[0328] like Fig.47 , Fig.48A as well as Fig.48B As shown, illustratively, the third dust-catching glue 183 can be fixedly connected to the top 171 of the housing 17 and located on a side of the top 171 close to the base 11 .

[0329] It is understandable that the third dust-catching glue 183 can capture the driving foot 1522 of the resonator 152 (see Fig.45A ) and follower 153 (see Fig.45A ) to prevent the debris generated by friction from falling onto the lens, thereby preventing the camera module 100 (see Figure 2 ) to prevent black spots or shadows from appearing in the image captured, thereby improving the imaging quality of the camera module 100.

[0330] like Fig.48A and Fig.48B As shown, the anti-collision protrusion 118 of the base 11 can be arranged opposite to the third side portion 174 of the housing 17 .

[0331] It is understandable that in the process of assembling the shell 17 to the base 11, the shell 17 is not easy to collide with the electronic device 164 of the circuit board assembly 16, and the electronic device 164 is not easy to malfunction or even be damaged due to the collision, thereby ensuring the reliability of the electronic device 164 and then ensuring the reliability of the circuit board assembly 16 and the motor 1.

[0332] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0333] It should be noted that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. And the dimensional ratio relationship between the components in the drawings does not serve as a limitation on the actual product of the present application. The above are only some of the implementation methods and implementation methods of the present application. The protection scope of the present application is not limited to this. Any technician familiar with the field can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A motor (1), characterized in that: The piezoelectric actuator (15) comprises a base (11), a carrier (12) and a piezoelectric actuator (15), wherein the carrier (12) is movably connected to the base (11), the piezoelectric actuator (15) is movably connected to the base (11) and fixedly connected to the carrier (12), and the piezoelectric actuator (15) is used to drive the carrier (12) to move relative to the base (11) along a first direction; The piezoelectric actuator (15) comprises a pre-stressing component (151), a resonator (152) and a driven element (153); The driven member (153) is movably connected to the base (11) and fixedly connected to the carrier (12); The resonator (152) is fixedly connected to the pre-pressing component (151), the pre-pressing component (151) is fixed to the base (11), the pre-pressing component (151) is used to press the driving foot (1522) of the resonator (152) onto the driven member (153), and the resonator (152) is used to drive the driven member (153) to drive the carrier (12) to move relative to the base (11) along a first direction when power is supplied; The driven member (153) has a first connection surface (153a), the carrier (12) has a second connection surface (12a), and the first connection surface (153a) is magnetically connected to the second connection surface (12a).

2. The motor (1) according to claim 1, characterized in that One of at least a portion of the first connecting surface (153a) and at least a portion of the second connecting surface (12a) is a curved surface, and the other is a flat surface; or at least a portion of the first connecting surface (153a) and at least a portion of the second connecting surface (12a) are both curved surfaces.

3. The motor (1) according to claim 2, characterized in that The first connecting surface (153a) is a curved surface, and the second connecting surface (12a) is a plane; or, the first connecting surface (153a) comprises a plane (153c) and a curved surface (153d), the curved surface (153d) is connected to the plane (153c), the second connecting surface (12a) is a plane, and the curved surface of the first connecting surface (153a) is fixedly connected to the second connecting surface (12a).

4. The motor (1) according to any one of claims 1 to 3, characterized in that The carrier (12) comprises a carrier body (121) and a magnetic body (122), wherein the magnetic body (122) is fixedly connected to the carrier body (121), and the carrier body (121) is movably connected to the base (11); The follower (153) comprises a follower body (1531) and a magnetic body (1532), wherein the magnetic body (1532) is fixedly connected to the follower body (1531), and the follower body (1531) is movably connected to the base (11), the magnetic body (122) and the magnetic body (1532) are arranged opposite to each other, the surface of the magnetic body (1532) facing the magnetic body (122) is the first connection surface (153a), and the surface of the magnetic body (122) facing the magnetic body (1532) is the second connection surface (12a).

5. The motor (1) according to claim 4, characterized in that The carrier body (121) is provided with a first groove (123), and at least a portion of the magnetic body (122) and at least a portion of the magnetic attraction body (1532) are located in the first groove (123).

6. The motor (1) according to claim 4, characterized in that The base (11) encloses a receiving space (114), and at least a portion of the carrier (12) is located in the receiving space (114); The follower body (1531) comprises a first connecting portion (1533) and a second connecting portion (1534); the second connecting portion (1534) is bent and connected to the first connecting portion (1533) and is at least partially located on one side of the first connecting portion (1533); and the magnetic body (1532) is fixedly connected to the second connecting portion (1534); The first connection portion (1533) is located on a side of the base (11) away from the carrier body (121) and is slidably connected to the base (11), and a portion of the second connection portion (1534) spans over the base (11) and extends into the accommodating space (114).

7. The motor (1) according to claim 6, characterized in that The follower body (1531) further comprises a first sliding shaft portion (1535) and a second sliding shaft portion (1536), wherein the first sliding shaft portion (1535) and the second sliding shaft portion (1536) are protrudingly arranged on a surface of the first connecting portion (1533) facing the second connecting portion (1534); The base (11) comprises a first slide groove (1151) and a second slide groove (1152), wherein at least a portion of the first slide shaft portion (1535) is located in the first slide groove (1151), and at least a portion of the second slide shaft portion (1536) is located in the second slide groove (1152).

8. The motor (1) according to claim 7, characterized in that The motor (1) further comprises a first support member (141) and a second support member (142), and the carrier (12) is movably connected to the base (11) via the first support member (141) and the second support member (142); The carrier body (121) comprises a first support groove (125) and a second support groove (126) which are arranged at intervals, at least a portion of the first support member (141) is located in the first support groove (125), and at least a portion of the second support member (142) is located in the second support groove (126); The first support groove (125) and the second support groove (126) both extend along the first direction, the first support groove (125) and the second support groove (126) are both arranged along the second direction, the first slide groove (1151) and the second slide groove (1152) both extend along the first direction, the first slide groove (1151) and the second slide groove (1152) are arranged along a third direction, wherein the first direction, the second direction and the third direction are different from each other.

9. The motor (1) according to claim 8, characterized in that The first supporting groove (125) comprises a first side wall (1251) and a second side wall (1252); the first side wall (1251) and the second side wall (1252) are arranged opposite to each other and are inclined; the distance between the first side wall (1251) and the second side wall (1252) at the opening of the first supporting groove (125) is greater than the distance between the first side wall (1251) and the second side wall (1252) at the bottom of the groove body of the first supporting groove (125); and the first supporting member (141) is in contact with the first side wall (1251) and the second side wall (1252); Compared to the second supporting groove (126), the first supporting groove (125) is closer to the piezoelectric actuator (15).

10. The motor (1) according to claim 9, characterized in that The cross section of the first supporting groove (125) is in a "V" shape or a trapezoidal shape.

11. The motor (1) according to any one of claims 8 to 10, characterized in that The motor (1) further comprises a first magnetic component (131) and a second magnetic component (132), wherein the first magnetic component (131) and the second magnetic component (132) are fixedly connected to the carrier (12); The first support member (141) is made of magnetic material, and the first support member (141) is arranged opposite to the first magnetic member (131), and / or the second support member (142) is made of magnetic material, and the second support member (142) is arranged opposite to the second magnetic member (132).

12. The motor (1) according to any one of claims 7 to 10, characterized in that A first boss (1537) and a second boss (1538) are convexly provided on the surface of the first sliding shaft portion (1535) and are arranged at intervals, and the first boss (1537) and the second boss (1538) are in contact with the first sliding groove (1151); A third boss (1539) is protrudingly provided on the surface of the second sliding shaft portion (1536), and the third boss (1539) abuts against the second sliding groove (1152).

13. The motor (1) according to claim 12, characterized in that The cross-sections of the first sliding shaft portion (1535) and the second sliding shaft portion (1536) are semicircular.

14. The motor (1) according to claim 6, characterized in that The first connecting portion (1533) of the driven member (153) is provided with a friction groove (153b), and the driving foot (1522) of the resonator (152) is located in the friction groove (153b) and is in contact with the groove wall of the friction groove (153b).

15. The motor (1) according to any one of claims 1 to 3, characterized in that A first wear-resistant layer (1528) is provided on the surface of the driving foot (1522) of the resonator (152), and the material of the first wear-resistant layer (1528) includes nitride.

16. The motor (1) according to any one of claims 1 to 3, characterized in that The driven member (153) is provided with a second wear-resistant layer (153e), and the material of the second wear-resistant layer (153e) includes nitride.

17. The motor (1) according to any one of claims 1 to 3, characterized in that The driven member (153) is provided with a ceramic layer (153f), the driving foot (1522) of the resonator (152) is in contact with the ceramic layer (153f), and the thickness T of the ceramic layer (153f) satisfies: T≥0.05mm.

18. The motor (1) according to claim 14, characterized in that The pre-pressing assembly (151) comprises a bracket (156) and a pressure column (158); the bracket (156) comprises a first end (1561), a middle portion (1562), and a second end (1563) connected in sequence; and the resonator (152) is fixedly connected to the middle portion (1562) of the bracket (156); The first end (1561) of the bracket (156) is fixedly connected to the base (11), the pressure column (158) is fixedly connected to the base (11), and the second end (1563) of the bracket (156) is fixed to the base (11).

19. The motor (1) according to claim 18, characterized in that The base (11) is provided with a first limiting groove (116), and the first end (1561) of the bracket (156) is fixedly connected to the first limiting groove (116); And / or, the base (11) is provided with a second limiting groove (117), and the second end (1563) of the bracket (156) is fixedly connected to the second limiting groove (117).

20. The motor (1) according to claim 18, characterized in that The pre-pressing assembly (151) further comprises a reed (157), wherein a first end (1571) and a second end (1573) of the reed (157) are fixedly connected to the base (11), and a middle portion (1572) of the reed (157) is fixedly connected to the first end (1561) of the bracket (156).

21. The motor (1) according to claim 18, characterized in that The cross section of the pressure column (158) is circular, semicircular or polygonal.

22. The motor (1) according to claim 18, characterized in that The resonator (152) comprises an elastic body (1521), a driving foot (1522), a first piezoelectric ceramic (1523) and a second piezoelectric ceramic (1524); the elastic body (1521) is fixedly connected to the pre-pressing component (151); The elastic body (1521) comprises a first surface (152a) and a second surface (152b) which are arranged in back to back relation, wherein the first surface (152a) is arranged toward the follower (153), the driving foot (1522) is fixedly connected to the first surface (152a), and the first piezoelectric ceramic (1523) and the second piezoelectric ceramic (1524) are fixedly connected to the second surface (152b) at intervals.

23. The motor (1) according to claim 22, characterized in that The motor (1) further comprises a circuit board assembly (16), wherein the circuit board assembly (16) comprises a main circuit board (161), a position sensor (162) and a third magnetic component (163), wherein the third magnetic component (163) is fixedly connected to the carrier (12); The position sensor (162) is fixedly connected to the main circuit board (161), and is electrically connected to the main circuit board (161); The main circuit board (161) is fixedly connected to the base (11) and is located on a side of the base (11) away from the piezoelectric actuator (15), and the position sensor (162) and the third magnetic member (163) are arranged opposite to each other.

24. The motor (1) according to claim 23, characterized in that The piezoelectric actuator (15) further comprises a first circuit board (154) and a second circuit board (155), wherein the first circuit board (154) is fixedly connected and electrically connected to the first piezoelectric ceramic (1523), and the second circuit board (155) is fixedly connected and electrically connected to the second piezoelectric ceramic (1524); The base (11) comprises a base body (111), a first electrical connection end (1121), a second electrical connection end (1122), a third electrical connection end (1123), a fourth electrical connection end (1124), a first wiring (1131) and a second wiring (1132); The first electrical connection end (1121), the second electrical connection end (1122), the third electrical connection end (1123), and the fourth electrical connection end (1124) are fixedly connected to the base body (111) at intervals and exposed relative to the base body (111); the first electrical connection end (1121) and the second electrical connection end (1122) are electrically connected to the first circuit board (154) and the second circuit board (155) respectively; and the third electrical connection end (1123) and the fourth electrical connection end (1124) are electrically connected to the main circuit board (161); The first wiring (1131) and the second wiring (1132) are embedded in the base body (111); the first wiring (1131) electrically connects the first electrical connection end (1121) and the third electrical connection end (1123); and the second wiring (1132) electrically connects the second electrical connection end (1122) and the fourth electrical connection end (1124).

25. The motor (1) according to claim 23, characterized in that The circuit board assembly (16) further comprises an electronic device (164), wherein the electronic device (164) is fixedly connected to the main circuit board (161) and is located on a side of the main circuit board (161) away from the base (11); The base (11) has an anti-collision protrusion (118), and the height of the anti-collision protrusion (118) is greater than the height of the electronic device (164).

26. The motor (1) according to any one of claims 18 to 25, characterized in that The motor (1) further comprises a first dust catching rubber (181), wherein the first dust catching rubber (181) is fixedly connected to the driven member (153) and is located on a side of the driven member (153) close to the resonator (152).

27. The motor (1) according to any one of claims 18 to 25, characterized in that The base (11) comprises a bottom plate (1111), a first side plate (1112), a second side plate (1113), a third side plate (1114) and a fourth side plate (1115); the first side plate (1112), the second side plate (1113), the third side plate (1114) and the fourth side plate (1115) are located on the same side of the bottom plate (1111) and are fixedly connected to the bottom plate (1111); The motor (1) further comprises a second dust catching rubber (182), wherein the second dust catching rubber (182) is fixedly connected to the bottom plate (1111) and is located on a side of the bottom plate (1111) close to the first side plate (1112).

28. The motor (1) according to any one of claims 18 to 25, characterized in that The motor (1) further comprises a housing (17) and a third dust-catching rubber (183), wherein the third dust-catching rubber (183) is fixedly connected to the housing (17); The housing (17) comprises a top portion (171), a first side portion (172), a second side portion (173), a third side portion (174), and a fourth side portion (175); the first side portion (172), the second side portion (173), the third side portion (174), and the fourth side portion (175) are located on the same side of the top portion (171), and are fixedly connected to the top portion (171); The outer shell (17) is covered on the base (11), and the third dust-catching rubber (183) is fixedly connected to the top (171) and is located on a side of the top (171) close to the base (11).

29. A camera module (100), characterized in that: It comprises a lens and a motor (1) according to any one of claims 1 to 28, wherein the lens is fixedly connected to the carrier (12).

30. An electronic device (1000), characterized in that: It comprises a housing (200) and a camera module (100) as claimed in claim 29, wherein the camera module (100) is arranged in the housing (200).

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