Motor, camera module and electronic device

Abstract

The present application provides a motor, a camera module, and an electronic device. The motor includes a base, a carrier, and a piezoelectric actuator. The carrier is movably connected to the base, and the piezoelectric actuator is movably connected to the base and fixedly connected to the carrier. The piezoelectric actuator is configured to drive the carrier to move relative to the base in a first direction. The piezoelectric actuator includes a preloading assembly, 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 preloading assembly, and the preloading assembly is fixed to the base. The preloading assembly is configured to press the driving feet of the resonator against the follower. The resonator is configured to drive the follower to drive the carrier to move relative to the base in the first direction when powered on. The follower has a first connection surface, and the carrier has a second connection surface. The first connection surface and the second connection surface are magnetically connected. The motor can achieve less magnetic interference, miniaturization, and higher reliability.

Description

Technical Field

[0001] This application relates to the technical field of photographing devices, and particularly to a motor, a camera module, and an electronic device. Background Art

[0002] With the development of technology and the demands of the electronic device market, camera modules are increasingly widely used in electronic devices. Camera modules can have various functions. Among them, the focusing function of camera modules has gradually become the focus of user attention. In traditional camera modules, a moving coil motor is provided, which can drive the lens to move to complete focusing. However, due to the unreasonable layout of the magnets of the moving coil motor and the high integration of the camera module, other components are easily subject to a relatively large degree of magnetic interference. In order to reduce the magnetic interference of the magnets on other components, the camera module needs to increase its size to create space to avoid magnetic interference. Therefore, the size of traditional camera modules is relatively large. Summary of the Invention

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

[0004] In a first aspect, this 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 fixedly connected to the carrier, and the piezoelectric actuator is used to drive the carrier to move relative to the base along a first direction; the piezoelectric actuator includes a preloading assembly, 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 preloading assembly, the preloading assembly is fixed to the base, the preloading assembly is used to squeeze the driving foot of the resonator against the follower, and the resonator is used to drive the follower to drive the carrier to move relative to the base along the first direction when powered on; the follower has a first connection surface, the carrier has a second connection surface, and the first connection surface and the second connection surface are magnetically attracted to each other.

[0005] It can be understood that the preloading assembly can be used to provide a pre-pressure for the resonator to abut against the follower, so that the resonator can be in close contact with the follower under the action of the pre-pressure, which is beneficial 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 and the second connecting surface are magnetically connected, the driven member and the carrier can be connected, and the piezoelectric actuator can control the carrier to move relative to the base along the first direction, so as to realize the focusing of the camera module. In this embodiment, the carrier can be driven by the piezoelectric actuator. Therefore, the motor in 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 create space to avoid magnetic interference, the problem of the large size of the motor can be avoided, which is conducive to the miniaturization of the motor in this embodiment.

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

[0008] It can be understood that by setting at least a part of the first connecting surface and at least a part of the second connecting surface as one of a curved surface and a flat surface, or by setting at least a part of the first connecting surface and at least a part of the second connecting surface as both curved surfaces, point contact between the first connecting surface and the second connecting surface can be achieved, and the degree-of-freedom limitation between the piezoelectric actuator and the carrier can be decoupled. The point contact between the carrier and the driven member only restricts the carrier along the first direction. In this way, when the position of the driven member deviates greatly relative to the base, this deviation is not easily transmitted to the carrier through the point contact between the carrier and the driven member, the carrier is not easily affected by the driven member, and the position of the carrier is not easily deviated greatly 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 relatively high.

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

[0010] It can be understood that by setting the first connecting surface as an arc surface and the second connecting surface as a flat surface, point contact between the first connecting surface and the second connecting surface can be achieved, so as to achieve point contact between the driven member and the carrier. In this way, the change in the position of the driven member in a direction other than the first direction is not easily transmitted to the carrier, and the reliability of the carrier is relatively high.

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

[0012] It can be understood that by setting a part of the first connection surface as an arc surface and the second connection surface as a flat surface, point contact between the first connection surface and the second connection surface can be achieved, thereby achieving point contact between the magnetic attracting body and the magnetic body, and further achieving point contact between the driven member and the carrier. In this way, the position change of the driven member in a direction other than the first direction is not easily transmitted to the carrier, the carrier is not easily moved relative to the base in a direction other than the first direction, and the reliability of the carrier is relatively high.

[0013] In a possible implementation manner, 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 driven member includes a driven member body and a magnetic attracting body. The magnetic attracting body is fixedly connected to the driven member body, and the driven member body is movably connected to the base. The magnetic body and the magnetic attracting body are arranged opposite to each other. The surface of the magnetic attracting body facing the magnetic body is the first connection surface, and the surface of the magnetic body facing the magnetic attracting body is the second connection surface.

[0014] It can be understood that the carrier and the driven member can be fixedly connected through point contact, which can decouple the degree-of-freedom limitation between the piezoelectric actuator and the carrier. The point contact between the carrier and the driven member only restricts the carrier in the first direction. In this way, when the position of the driven member 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 driven member, the carrier is not easily affected by the driven member, and the position of the carrier is not easily offset by a large angle relative to the base. Thus, the carrier can stably reciprocate relative to the base in the first direction, and the reliability of the carrier is relatively high.

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

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

[0017] In a possible implementation manner, the base encloses an accommodation space, and at least part of the carrier is located in the accommodation space; the driven member body includes a first connection portion and a second connection portion. The second connection portion is bent and connected to the first connection portion and at least part of it is located on one side of the first connection portion. The magnetic attracting body is fixedly connected to the second connection portion; the first connection portion is located on the side of the base away from the carrier body and is slidably connected to the base. A part of the second connection portion crosses the base and extends into the accommodation space.

[0018] It can be understood that by arranging the first connecting portion and the second connecting portion 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 simultaneously. In addition, the second connecting portion extends into the accommodating space, which can save the space of the motor and is beneficial to improving the space utilization rate of the motor.

[0019] In a possible implementation manner, the driven member body further includes a first sliding shaft portion and a second sliding shaft portion, and the first sliding shaft portion and the second sliding shaft portion protrude 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, at least a part of the first sliding shaft portion is located in the first sliding groove, and at least a part of the second sliding shaft portion is located in the second sliding groove.

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

[0021] In a possible implementation manner, the motor further 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 part of the first support member is located in the first support groove, and at least a part of the second support member is located in the second support groove; both the first support groove and the second support groove extend along the first direction, the first support groove and the second support groove are arranged along the second direction, both the first sliding groove and the second sliding groove extend along the first direction, and the first sliding groove and the second sliding 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 sliding groove and the second sliding groove. In this way, the carrier and the driven member can move together along 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 sliding groove and the second sliding groove. The first support groove and the second support groove connecting the carrier and the first sliding groove and the second sliding groove connecting the piezoelectric actuator are independent of each other and are substantially in an orthogonal layout, which can ensure the movement stability of the carrier and the driven member.

[0023] In a 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 oppositely arranged 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. The first support member contacts the first side wall and the second side wall. Compared with the second support groove, the first support groove is closer to the piezoelectric actuator.

[0024] It can be understood that by arranging the first support groove on the side close to the piezoelectric actuator, the piezoelectric actuator can be located on the side where the carrier is tightly fitted with the first support member. 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, the cross-section of the first support groove is in a "V" shape or a trapezoid.

[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 slides relative to the extension direction of the first support groove (i.e., the first direction), which can reduce the probability of the first support member deviating, and thus reduce the probability of the carrier deviating when moving along the first direction.

[0027] 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 first support member is made of a magnetic adsorption material and is oppositely arranged with the first magnetic member.

[0028] It can be understood that the magnetic force between the first magnetic member and the first support member can adsorb the carrier on the first support member. In this way, along the third direction, the carrier can be more tightly connected to the first support member through the first magnetic member, preventing the carrier from tilting at a large angle or coming off during movement, thereby improving the stability and reliability of the carrier during movement. In addition, by adsorbing the carrier on the first support member, during the movement of the carrier relative to the base along the first direction, the noise generated by the carrier and the first support member is small, 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 a magnetic adsorption material and is oppositely arranged with the second magnetic member.

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

[0031] In a possible implementation, the surface of the first sliding shaft portion is convexly provided with a first boss and a second boss arranged at intervals, and the first boss and the second boss are in contact with the first sliding groove; the surface of the second sliding shaft portion is convexly provided with a third boss, and the third boss is in contact with the second sliding groove.

[0032] It can be understood that the contact between the base and the first sliding shaft portion is realized through the first boss and the second boss, and the contact between the base and the second sliding shaft portion is realized 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 driven member moving relative to the base along the first direction, and thus improves the stability of the carrier moving relative to the base along the first direction.

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

[0034] It can be understood that since the cross-sections of the first sliding shaft portion and the second sliding shaft portion can be approximately semi-circular, during the movement of the driven member relative to the base, the noise generated between the first sliding shaft portion, the second sliding shaft portion and the base is small, and the user experience is better. In addition, compared with the sliding shaft with a cross-section approximately circular, the first sliding shaft portion and the second sliding shaft portion with a cross-section approximately semi-circular occupy less space in the second direction and are not easily affected by the reliability of the first sliding shaft portion and the second sliding shaft portion, which is beneficial to the miniaturization of the piezoelectric actuator and the motor.

[0035] In a possible implementation, the first connecting portion of the driven member is provided with a friction groove, and the driving foot of the resonator is located in the friction groove and is in contact 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, and further driving the driven member to move relative to the resonator along the first direction.

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

[0038] It can be understood 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 easily worn or chipped, and black spots or black shadows are not easily present in the images or videos captured by the camera module, and the imaging quality of the camera module is relatively high.

[0039] In a possible implementation manner, the 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 relatively high hardness, and the second wear-resistant layer also has relatively high hardness, which can improve the hardness of the groove wall of the friction groove of the driven member. In this way, during the friction between the driving foot and the driven member, the driven member is not easily worn or chipped, and black spots or black shadows are not easily present in the images or videos captured by the camera module, and the imaging quality of the camera module is relatively high.

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

[0042] It can be understood that by setting the thickness T of the ceramic layer within the range of greater than or equal to 0.05mm, the thickness of the ceramic layer is relatively large, and the hardness of the ceramic layer is also relatively large, which can improve the hardness of the groove wall of the friction groove of the driven member. In this way, during the friction between the driving foot and the driven member, the driven member is not easily worn or chipped, and black spots or black shadows are not easily present in the images or videos captured by the camera module, and the imaging quality of the camera module is relatively high.

[0043] In a possible implementation manner, the preloading assembly includes a bracket and a pressing 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 pressing column is fixedly connected to the base, and the second end of the bracket is fixed on the base.

[0044] It can be understood that the pressing column fixes the second end of the bracket on the base, and the pressing column can limit the bracket, thereby avoiding inelastic deformation of the reed.

[0045] In a possible implementation manner, 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 can be understood that the base can limit the bracket in the third direction, the bracket is not easily disengaged from the base, and the reliability of the bracket is relatively good. When the driven member 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 in close contact with the driven member, and the connection between the resonator and the driven member 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 within the second limiting groove.

[0048] It can be understood that the base can limit the bracket in the third direction, and it is not easy for the bracket to come off the base, so the reliability of the bracket is relatively good. When the follower moves relative to the base, the bracket can provide a stable pre-pressure to the resonator, so that the driving feet of the resonator can be in close contact with the follower, and the connection between the resonator and the follower is more reliable.

[0049] In a possible implementation, the preloading assembly further includes a reed, the first end and the second end of the reed are fixedly connected to the base, and the middle part of the reed is fixedly connected to the first end of the bracket.

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

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

[0052] It can be understood that when the cross-section of the pressure column is circular or semi-circular, the contact between the pressure column and the bracket is line contact, which can improve the anti-torsion stability of the bracket, so that the preloading assembly can provide a pre-pressure for squeezing the driving feet of the resonator towards the follower, and the resonator can be in close contact with the follower under the action of the pre-pressure, which is beneficial to ensuring that the macroscopic displacement generated by the microscopic vibration of the resonator is transmitted to the follower. In addition, due to the line contact between the pressure column and the bracket, the anti-swing ability of the bracket is strong, which can avoid the output force fluctuation and noise caused by the swing of the bracket, and the user experience is relatively good.

[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 anti-torsion stability of the bracket, so that the preloading assembly can provide a pre-pressure for squeezing the driving feet of the resonator towards the follower, and the resonator can be in close contact with the follower under the action of the pre-pressure, which is beneficial to ensuring that the macroscopic displacement generated by the microscopic vibration of the resonator is transmitted to the follower.

[0054] In a possible implementation, the resonator includes an elastic body, driving feet, a first piezoelectric ceramic and a second piezoelectric ceramic, and the elastic body is fixedly connected to the preloading assembly; the elastic body includes a first surface and a second surface arranged back to back, the first surface faces the follower, the driving feet are 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 can be understood that the preloading component can fix and support the elastomer. The first piezoelectric ceramic and the second piezoelectric ceramic can deform when powered on, and the elastomer can convert this deformation into a macroscopic displacement.

[0056] In a possible implementation, the motor further includes a circuit board assembly. The circuit board assembly includes a main circuit board, a position sensor, and a third magnetic member. The third magnetic member 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 the side of the base away from the piezoelectric actuator, and the position sensor is disposed opposite to the third magnetic member.

[0057] It can be understood that the position sensor can detect the change in the magnetic field of the third magnetic member. The processor can obtain the real-time position of the carrier according to the detection result of the position sensor, so as to be able to accurately control the displacement amount of the carrier, and further realize the closed-loop control of the carrier, and the reliability of the carrier is relatively high.

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

[0059] It can be understood that the piezoelectric actuator can be electrically connected to the circuit board assembly through the base. The piezoelectric actuator can achieve electrical connection without setting additional structural components, which is beneficial to reducing the number of structural components of the motor, and thus is beneficial to realizing the miniaturization setting of the motor.

[0060] In a possible implementation, the circuit board assembly further includes an electronic device. The electronic device is fixedly connected to the main circuit board and is located on the 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 can be understood that since the height of the anti-collision protrusion in the second direction is greater than the height of the electronic device in the second direction, the anti-collision protrusion can play a protective role for the electronic device. Compared with the electronic device, other components are more likely to collide with the anti-collision protrusion, and 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 collision, and the reliability of the electronic device and the circuit board assembly is relatively high.

[0062] In a possible implementation, the motor further includes a first dust-catching glue, and the first dust-catching glue is fixedly connected to the driven member and is located on the 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 of the resonator and the driven member, prevent the debris from falling onto the lens, thereby avoiding the appearance of black dots or black shadows in the image captured by the camera module, and further improving the imaging quality of the camera module.

[0064] In a 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 further includes a second dust-catching glue, and the second dust-catching glue is fixedly connected to the bottom plate and is located on the 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 of the resonator and the driven member, prevent the debris from falling onto the lens, thereby avoiding the appearance of black dots or black shadows in the image captured by the camera module, and further improving the imaging quality of the camera module.

[0066] In a possible implementation, the motor further includes a housing and a third dust-catching glue, and the third dust-catching glue is fixedly connected to the housing; the housing includes a top, a first side portion, a second side portion, a third side portion, and a fourth side portion. The first side portion, the second side portion, the third side portion, and the fourth side portion are located on the same side of the top and are fixedly connected to the top; the housing covers the base, and the third dust-catching glue 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 of the resonator and the driven member, prevent the debris from falling onto the lens, thereby avoiding the appearance of black dots or black shadows in the image captured by the camera module, and further improving the imaging quality of the camera module.

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

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

[0070] In a third aspect, the present application provides an electronic device. The electronic device includes a housing and the above-described camera module, and the camera module is disposed within the housing.

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

[0072] Figure 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application;

[0073] Figure 2 is Figure 1 a partial cross-sectional schematic diagram of an embodiment of the electronic device shown in FIG. A-A;

[0074] Figure 3 is Figure 2 a partial structural schematic diagram of the focusing assembly shown in FIG. in an embodiment;

[0075] Figure 4 is Figure 3 a partial exploded schematic diagram of the motor shown in FIG. in an embodiment Figure 1 ;

[0076] Figure 5 is Figure 4 a schematic structural diagram of the base shown in FIG. in an embodiment;

[0077] Figure 6 is Figure 5 a schematic structural diagram of the base shown in FIG. from another angle;

[0078] Figure 7 is Figure 5 a partial exploded schematic diagram of the base shown in FIG. in an embodiment;

[0079] Figure 8 is Figure 4 a schematic structural diagram of the carrier shown in FIG. in an embodiment;

[0080] Fig. 9 is Figure 8 a schematic structural diagram of the carrier shown in FIG. from another angle;

[0081] Fig.10 is Figure 8 a partial exploded schematic diagram of the carrier shown in FIG. in an embodiment;

[0082] Fig.11 is Figure 8 a partial cross-sectional schematic diagram of the carrier shown in FIG. at line B-B in an embodiment;

[0083] Fig.12 is Figure 3 a partially exploded schematic view of the motor shown in one embodiment Figure 2 ;

[0084] Fig.13 is Figure 3 a partially structural schematic view of the motor shown in one embodiment Figure 1 ;

[0085] Fig.14 is Fig.13 a partially sectional schematic view of the motor shown in one embodiment at the C-C line;

[0086] Fig.15 is Fig.13 a partially exploded schematic view of the motor shown in another angle;

[0087] Fig.16 is Figure 4 a partially exploded schematic view of the piezoelectric actuator shown in one embodiment;

[0088] Fig.17 is Fig.16 a structural schematic view of the follower shown in another angle;

[0089] Fig.18 is Fig.17 a partially exploded schematic view of the follower shown in one embodiment;

[0090] Fig.19A is Figure 3 a partially exploded schematic view of the motor shown in one embodiment Figure 3 ;

[0091] Fig.19B is Figure 3 a partially structural schematic view of the motor shown in one embodiment Figure 2 ;

[0092] Fig. 20A is Fig.19B a partially sectional schematic view of the motor shown in one embodiment at the D-D line;

[0093] Fig. 20B is Fig. 20A a magnified structural schematic view of the motor shown in one embodiment at E;

[0094] Fig.21 is Fig.19B a partially sectional schematic view of the motor shown in one embodiment at the F-F line;

[0095] Fig.22A is Fig.19BPartial sectional schematic diagram of another embodiment of the motor shown at the D-D line;

[0096] Fig. 22B is Fig.22A Structural enlarged schematic diagram of one embodiment of the motor shown at G;

[0097] Fig.23 is Fig.16 Structural schematic diagram of one embodiment of the oscillator shown;

[0098] Fig.24 is Fig.23 Partial exploded schematic diagram of one embodiment of the oscillator shown;

[0099] Fig.25 is Fig.16 Partial structural schematic diagram of one embodiment of the preloading assembly shown;

[0100] Fig.26 is Fig.25 Partial exploded schematic diagram of one embodiment of the preloading assembly shown;

[0101] Fig. 27 is Figure 4 Partial structural schematic diagram of one embodiment of the piezoelectric actuator shown;

[0102] Fig.28 is Figure 4 Partial structural schematic diagram of one embodiment of the piezoelectric actuator shown;

[0103] Fig.29 is Figure 3 Partial exploded schematic diagram of one embodiment of the motor shown Figure 4 ;

[0104] Fig.30 is Figure 3 Partial exploded view of one embodiment of the motor shown Figure 5 ;

[0105] Fig.31 is Figure 3 Partial structural schematic diagram of one embodiment of the motor shown Figure 3 ;

[0106] Fig.32 is Fig.31 Partial sectional schematic diagram of one embodiment of the motor shown at the H-H line;

[0107] Fig.33A is Figure 4 Partial sectional schematic diagram of one embodiment of the piezoelectric actuator shown at the I-I line;

[0108] Fig.33B is Fig.33A A schematic enlarged view of the structure of an embodiment of the piezoelectric actuator shown at J;

[0109] Fig.34A is Figure 4 A partial cross-sectional view of another embodiment of the piezoelectric actuator shown at the I-I line;

[0110] Fig.34B is Fig.34A A schematic enlarged view of the structure of an embodiment of the piezoelectric actuator shown at K;

[0111] Fig.35 is Fig.31 A partial cross-sectional view of an embodiment of the motor shown at the L-L line;

[0112] Fig.36 is Fig.31 A partial cross-sectional view of an embodiment of the motor shown at the M-M line;

[0113] Fig.37 is Fig.31 A partial cross-sectional view of another embodiment of the motor shown at the M-M line;

[0114] Fig.38 is Fig.31 A schematic view of the structure of the motor shown at another angle;

[0115] Fig.39 is Fig.38 A partial exploded view of an embodiment of the motor shown;

[0116] Fig.40 is Figure 4 A partial structural view of the circuit board assembly shown at another angle;

[0117] Fig.41 is Fig.40 A partial structural view of the circuit board assembly shown at another angle;

[0118] Fig.42 is Figure 3 A partial structural view of an embodiment of the motor shown Figure 4 ;

[0119] Fig.43 is Fig.42 A partial cross-sectional view of an embodiment of the motor shown at the N-N line;

[0120] Fig.44 is Figure 4Partial structural schematic diagram of the motor shown in one embodiment;

[0121] Fig.45A is Figure 3 Partial cross-sectional schematic diagram of the motor shown in one embodiment at the O-O line;

[0122] Fig.45B is Fig.45A Enlarged structural schematic diagram of the motor shown in one embodiment at P;

[0123] Fig.46 is Figure 4 Partial structural schematic diagram of the housing shown in one embodiment;

[0124] Fig.47 is Figure 3 Partial structural schematic diagram of the motor shown in another view;

[0125] Fig.48A is Figure 3 Partial cross-sectional schematic diagram of the motor shown in one embodiment at the Q-Q line;

[0126] Fig.48B is Fig.48A Enlarged structural schematic diagram of the motor shown in one embodiment at R. Specific embodiments

[0127] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application.

[0128] In the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "installed", "connected", "joined", and "connected to" should be understood in a broad sense. For example, "connected" 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 components are connected to each other and the relative positional relationship after connection remains unchanged. "Movable connection" means that the components are connected to each other and can move relative to each other after connection. "Sliding connection" means that the components are connected to each other and can slide relative to each other after connection. In addition, when two components are integrally formed through an integral molding process, it means that during the process of forming one of the two components, the component is connected to the other component together, and there is no need to connect the two components through additional processing (such as bonding, welding, snap connection, screw connection). The relative arrangement of component A and component B can be that when component A is projected along the target direction to obtain projection C, and component B is projected along the target direction to obtain projection D, projection C and projection D can at least mostly overlap. In some embodiments, mostly overlapping can be any of the following situations: projection C is completely located within projection D. Or, projection D is completely located within projection C. Or, projection C and projection D intersect, and the intersection area of projection C and projection D accounts for a proportion higher than 50% of projection C or projection D.

[0129] The orientation terms mentioned in the embodiments of the present application, such as "top", "bottom", "inner", "outer", etc., are only references to the directions in the drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to 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.

[0130] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after. "Multiple" means at least two.

[0131] In addition, in the embodiments of the present application, the limitations on the relative position relationships, such as parallel, perpendicular, etc., are all in view of the current technological level, rather than absolute and strict limitations. A small deviation is allowed, and being approximately parallel, approximately perpendicular, etc. are all acceptable. For example, when it is stated that A is parallel to B, it means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0 degrees and 10 degrees. For example, when it is stated that A is perpendicular to B, it means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80 degrees and 100 degrees.

[0132] Figure 1 It is a schematic structural diagram of an electronic device 1000 provided by an embodiment of the present application.

[0133] As Figure 1 shown, the electronic device 1000 can be 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, etc., which are devices with a camera module.

[0134] It can be understood that, for the convenience of description hereinafter, it is defined that the electronic device 1000 has 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 can be the width direction of the electronic device 1000, the second direction Y can be the height direction of the electronic device 1000, the first direction X can be substantially perpendicular to the second direction Y, and the third direction Z can be the thickness direction of the electronic device 1000. The third direction Z can 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 can be flexibly set according to specific actual needs.

[0135] Figure 2 is Figure 1 A partial cross-sectional schematic diagram of an embodiment of the electronic device 1000 shown at the A-A line.

[0136] As Figure 1 and Figure 2 shown, in some embodiments, the electronic device 1000 can include a camera module 100, a housing 200, and a screen 300. Among them, the camera module 100 can be a rear camera module 100 or a front camera module 100. It can be understood that, attached Figure 1, Appendix Figure 2 And the following related drawings only schematically show some components included in the electronic device 1000. The actual shape, actual size, actual position, and actual structure of these components are not limited by the appendix Figure 1 , Appendix Figure 2 And the following respective drawings. 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 further include a heat pipe (not shown in the figure). When the electronic device 1000 includes fewer structures, the electronic device 1000 may also not include a screen.

[0137] As Figure 1 and Figure 2 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 the 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.

[0138] Exemplarily, the camera module 100 can be disposed within the housing 200. The housing 200 has a light-transmitting portion 201. The shape of the light-transmitting portion 201 is not limited to the circular shape schematically shown Figure 1 and can also be an oval or an irregular shape. The light outside the electronic device 1000 can enter the interior of the electronic device 1000 through the light-transmitting portion 201. The camera module 100 can collect the light entering the interior of the electronic device 1000. The light-transmitting portion 201 can be a light-transmitting hole or a transparent part in the housing 200. The specific structure of the light-transmitting portion 201 is not specifically limited in this application.

[0139] As Figure 2 shown, exemplarily, the camera module 100 includes a first folding element 10, a focusing 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 further include more or fewer structures. For example, when the camera module 100 includes more structures, the camera module 100 may further include a filter (not shown in the figure). When the camera module 100 includes fewer structures, the camera module 100 may also not include the second folding element 30.

[0140] Exemplarily, the image sensor 40 is a semiconductor chip, which can also be referred to as a photosensitive chip. The surface of the image sensor 40 contains hundreds of thousands to millions of photodiodes that generate charges when exposed to light. The image sensor 40 utilizes the photoelectric conversion function of optoelectronic devices to convert the optical image on its photosensitive surface into an electrical signal that is in a corresponding proportional relationship with the optical 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, complementary metal-oxide semiconductor, phototransistor, or thin-film transistor, etc. In other embodiments, the image sensor 40 can also be a component with other structures.

[0141] Exemplarily, the image sensor 40 can be located on the image side of the focusing assembly 20. Light can sequentially pass through the first folding element 10, the focusing assembly 20, and the second folding element 30 and then reach the image sensor 40, thereby achieving imaging.

[0142] Figure 3 is Figure 2 The partial structural schematic diagram of the focusing assembly 20 shown in one embodiment.

[0143] As Figure 2 and Figure 3 shown, exemplarily, the focusing assembly 20 can include a motor 1 and a lens (not shown in the figure). The lens can be mounted on the motor 1. The motor 1 can drive the lens to move along the first direction X to achieve autofocus (AF) of the camera module 100 and improve the imaging quality of the camera module 100.

[0144] Figure 4 is Figure 3 The partial exploded schematic diagram of the motor 1 shown in one embodiment Figure 1 .

[0145] As Figure 3 and Figure 4 shown, exemplarily, the motor 1 can 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 can be understood that Figure 4 only some of the components included in the motor 1 are schematically shown, and the actual shapes, actual sizes, actual positions, and actual structures of these components are not limited by Figure 4 . The motor 1 can include more or fewer structures. For example, when the motor 1 includes fewer structures, the motor 1 may not include the housing 17.

[0146] Figure 5 is Figure 4 The structural schematic diagram of the base 11 shown in one embodiment. Figure 6 is Figure 5 Schematic structural diagram of the base 11 shown from another angle. Figure 7 is Figure 5 Partial exploded view of the base 11 shown in one embodiment.

[0147] As Figures 5 to 7 shown, by way of example, 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 can be understood that the attached Figure 5 and the related drawings below only schematically show some components included in the base 11, and the actual shapes, actual sizes, actual positions, and actual structures of these components are not limited by the attached Figure 5 and the respective drawings below. In addition, the base 11 may include more or fewer structures.

[0148] By way of example, 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.

[0149] By way of example, the first trace 1131 and the second trace 1132 may be embedded in the base body 111. The first trace 1131 may electrically connect the first electrical connection end 1121 and the third electrical connection end 1123, and the second trace 1132 may electrically connect the second electrical connection end 1122 and the fourth electrical connection end 1124.

[0150] As Figures 5 to 7 shown, by way of example, 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.

[0151] By way of example, 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 an accommodation space 114 of the base 11.

[0152] Exemplarily, the first side plate 1112 and the third side plate 1114 can be opposite and spaced apart, the first side plate 1112 and the third side plate 1114 can be arranged along the second direction Y, and the second side plate 1113 can 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 can be opposite and spaced apart, and the second side plate 1113 and the fourth side plate 1115 can be arranged along the first direction X. In other embodiments, the base body 111 can also adopt other structures.

[0153] It can be understood that, for the convenience of describing the specific structure and shape of the base body 111, in this embodiment, the base body 111 is divided 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 members 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 members, and are fixedly connected to the bottom plate 1111 by means such as gluing and welding.

[0154] As Figure 5 shown, exemplarily, the base 11 can include a first chute 1151 and a second chute 1152.

[0155] Exemplarily, the first chute 1151 and the second chute 1152 can be located on the first side plate 1112. The openings of the first chute 1151 and the second chute 1152 can both be arranged facing away from the third side plate 1114.

[0156] Exemplarily, the cross-section of the first chute 1151 can be generally in a "V" shape. In other words, the first chute 1151 can be a V-shaped groove, and the cross-section of the first chute 1151 can be generally perpendicular to the first direction X. The second chute 1152 can be generally in a flat plate shape.

[0157] Wherein, the V-shaped groove in the embodiment of the present application means that the two side walls opposite to each other of the groove body are inclined. And, the distance between the above 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 generally in a "V" shape or in a "trapezoid" shape. The above is only an example illustration of the V-shaped groove, and does not constitute a limitation on the structure of the V-shaped groove. As long as it satisfies that the two side walls opposite to each other of the groove body of the V-shaped groove are inclined, and the distance between the two side walls at the opening position of the groove body is greater than the distance between the two side walls at the bottom position of the groove body.

[0158] In other embodiments, the cross-section of the first chute 1151 may also be in other shapes, and the first chute 1151 may also be other types of chutes. The cross-section of the second chute 1152 may also be in other shapes, and the second chute 1152 may also be other types of chutes. Specifically, the present application does not make any limitations in this regard.

[0159] Exemplarily, the first chute 1151 and the second chute 1152 may extend along the first direction X. The first chute 1151 and the second chute 1152 may be arranged along the third direction Z. Herein, the first chute 1151 and the second chute 1152 extending along the first direction X means that the maximum dimensions of the first chute 1151 and the second chute 1152, for example, the length directions of the first chute 1151 and the second chute 1152 may be substantially parallel to the first direction X.

[0160] As Figure 5 shown, exemplarily, the base 11 may be provided with a first limiting groove 116 and a second limiting groove 117.

[0161] Exemplarily, 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 facing 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 facing away from the third side plate 1114.

[0162] As Figure 6 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 away from the surface of the third side plate 1114 in the second direction Y.

[0163] Exemplarily, the number of the anti-collision protrusions 118 may be multiple. In one embodiment, the number of the anti-collision protrusions 118 may be two.

[0164] In other embodiments, the number of the anti-collision protrusions 118 may also be one. Specifically, the present application does not make any limitations in this regard.

[0165] As Figure 5 and Figure 6 shown, exemplarily, the second side plate 1113 may be provided with a first through hole 119a and a second through hole 119b.

[0166] 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 spaced apart. The first through hole 119a may be located on a side of the second through hole 119b closer to the first side plate 1112.

[0167] As Figure 5 and Figure 6 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.

[0168] Figure 8 is Figure 4 a schematic structural view of the carrier 12 in one embodiment as shown. Fig. 9 is Figure 8 a schematic structural view of the carrier 12 from another angle as shown. Fig.10 is Figure 8 a partially exploded schematic view of the carrier 12 in one embodiment as shown.

[0169] As Figures 8 to 10 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.

[0170] Exemplarily, the carrier body 121 may include a first part 1211, a second part 1212, and a third part 1213.

[0171] Exemplarily, the first part 1211 and the second part 1212 may be located on the same side of the third part 1213 and fixedly connected to the third part 1213. Among them, the first part 1211 and the second part 1212 may be opposite and spaced apart. The first part 1211 and the second part 1212 may be arranged along the second direction Y. The third part 1213 may be located on the same side of the first part 1211 and the second part 1212 and connected between the first part 1211 and the second part 1212. In other embodiments, the carrier body 121 may also adopt other structures.

[0172] It can be understood that, for the convenience of describing the specific structure and shape of the carrier body 121, in this embodiment, the carrier body 121 is divided into three parts for description, 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 members 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 members, and are fixedly connected to the third part 1213 by means such as gluing and welding.

[0173] As Figure 8 and Fig.10 shown, exemplarily, the carrier body 121 can be provided with a first groove 123. The first groove 123 can be located in the first part 1211.

[0174] Exemplarily, at least part of the magnetic body 122 can be located in the first groove 123 and is fixedly connected to the groove wall of the first groove 123.

[0175] As Figures 8 to 10 shown, exemplarily, the carrier body 121 can include a first support groove 125 and a second support groove 126 which are arranged at intervals.

[0176] Exemplarily, the first support groove 125 can be located in the first part 1211. The opening of the first support groove 125 can face away from the first groove 123. The cross-section of the first support groove 125 can be generally in a "V" shape. In other words, the first support groove 125 can be a V-shaped groove.

[0177] Exemplarily, the first support 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 oppositely arranged and obliquely arranged, and the distance between the first side wall 1251 and the second side wall 1252 at the opening of the first support 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 support groove 125.

[0178] In one embodiment, the cross-section of the first support groove 125 can be generally trapezoidal.

[0179] In other embodiments, the cross-section of the first support groove 125 can also be generally in other shapes. For example, the cross-section of the first support groove 125 can also be generally quadrilateral. Specifically, the present application does not make a limitation.

[0180] Exemplarily, the second support groove 126 can be located in the second part 1212. The opening of the second support groove 126 can face away from the first groove 123. The cross-section of the second support groove 126 can be generally in an "L" shape.

[0181] 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. Herein, the first support groove 125 and the second support groove 126 extending along the first direction X means that the maximum dimensions of the first support groove 125 and the second support groove 126, for example, the length directions of the first support groove 125 and the second support groove 126 may be substantially parallel to the first direction X.

[0182] Exemplarily, the magnetic body 122 may be a magnet or other magnetic components. The magnetic body 122 may have magnetism.

[0183] Fig.11 Yes Figure 8 Partial cross-sectional schematic diagram of an embodiment of the shown carrier 12 at the B-B line.

[0184] Such as Fig. 9 And Fig.11 As shown, the first part 1211 may be provided with a first mounting groove 1271. The second part 1212 may be provided with a second mounting groove 1272.

[0185] Exemplarily, the first mounting groove 1271 may be located on a side of the first support groove 125 close to the first groove 123. The first mounting groove 1271 may communicate with the first support groove 125. The second mounting groove 1272 may be located on a side of the second support groove 126 close to the first groove 123. The opening of the second mounting groove 1272 may be arranged facing away from the first part 1211.

[0186] Such as Fig. 9 As shown, exemplarily, the second part 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 part 1211.

[0187] Fig.12 Yes Figure 3 Partial exploded view of an embodiment of the shown motor 1 Figure 2 . Fig.13 Yes Figure 3 Partial structural schematic diagram of an embodiment of the shown motor 1 Figure 1 . Fig.14 Yes Fig.13 Partial cross-sectional schematic diagram of an embodiment of the shown motor 1 at the C-C line.

[0188] Such as Figure 12 to Figure 14 As shown, the carrier 12 may be movably connected to the base 11, and at least a part of the carrier 12 may be located in the accommodation space 114 of the base 11.

[0189] Such as Fig.13 As shown, exemplarily, the carrier body 121 can be movably connected to the base 11. In one embodiment, the first part 1211 of the carrier body 121 can be disposed opposite to the first side plate 1112 of the base 11, the second part 1212 can be disposed opposite to the third side plate 1114, and the third part 1213 can be disposed opposite to the fourth side plate 1115.

[0190] As Fig.14 shown, exemplarily, the carrier 12 can be movably connected to the base 11 through the first support member 141 and the second support member 142.

[0191] Exemplarily, the first support member 141 can be fixedly connected to the base 11. At least a part of the first support member 141 can be located within the first through hole 119a (please refer to Figure 6 ), and the first support member 141 can be fixedly connected to the hole wall of the first through hole 119a by means such as gluing. The first support member 141 can be movably connected to the carrier 12. At least a part of the first support member 141 can be located within the first support groove 125, and the first support member 141 can be in contact with the first support groove 125. The first support member 141 can be in contact with the first side wall 1251 and the second side wall 1252. There can be a zero clearance between the first support member 141 and the carrier 12.

[0192] Exemplarily, the cross-section of the first support groove 125 is generally in a "V" shape, and the first support member 141 is in contact with both side walls of the first support groove 125. In other words, there is a zero clearance state between the first support member 141 and both side walls of the first support groove 125.

[0193] 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 (i.e., the first direction X), which can reduce the probability of the first support member 141 deviating, and thus reduce the probability of the carrier 12 deviating when moving along the first direction X.

[0194] Exemplarily, the second support member 142 can be fixedly connected to the base 11. At least a part of the second support member 142 can be located within the second through hole 119b, and the second support member 142 can be fixedly connected to the hole wall of the second through hole 119b by means such as gluing. The second support member 142 can be movably connected to the carrier 12. At least a part of the second support member 142 can be located within the second support groove 126, and the second support member 142 can be in contact with the second support groove 126. There can be a loose fit between the second support member 142 and the carrier 12.

[0195] It can be understood that there is a certain amount of movement space between the second support member 142 and the second support groove 126, which can reduce the possibility of interference, thereby avoiding the occurrence of jamming when the carrier 12 moves in the first direction X.

[0196] 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. 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 the carrier 12 shifting in position during movement. In addition, the frictional force between the carrier 12 and the first support member 141 and the frictional force 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 relatively smooth.

[0197] In other embodiments, the carrier 12 can also be movably connected to the base 11 in other ways. Specifically, the present application does not make any limitations.

[0198] As Fig.14 shown, exemplarily, the first magnetic member 131 can be fixedly connected to the carrier 12. In one embodiment, the first magnetic member 131 can be located in the first mounting groove 1271. The first magnetic member 131 can be disposed opposite to the first support member 141.

[0199] Exemplarily, the first support member 141 can be made of a magnetic attraction material. Among them, the magnetic attraction material can be a material that can generate a magnetic attraction force with a magnet or other magnetic components, such as ferromagnetic materials, etc. It can be understood that when the magnetic attraction material appears again later, the meaning represented is the same and will not be elaborated.

[0200] Exemplarily, there can be a magnetic force between the first magnetic member 131 and the first support member 141 that is substantially perpendicular to the length direction of the first support member 141 (i.e., the third direction Z), and the first magnetic member 131 and the first support member 141 can attract each other.

[0201] As Fig.14 shown, exemplarily, the second magnetic member 132 can be fixedly connected to the carrier 12.

[0202] Exemplarily, the second magnetic member 132 can be located in the second mounting groove 1272. The second magnetic member 132 can be disposed opposite to the second support member 142.

[0203] Exemplarily, the second support member 142 can be made of a magnetic attraction material.

[0204] 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 of the first support member 141 (i.e., the third direction Z), and the second magnetic member 132 and the second support member 142 may attract each other.

[0205] It can be understood 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 tightly 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 disengaging during movement, thereby improving the stability and reliability of the carrier 12 during 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 experience is better.

[0206] Fig.15 is Fig.13 A partial exploded view of the motor 1 shown in another angle.

[0207] Please refer to Fig.15 and in combination with Fig.14 shown, exemplarily, the groove walls of the first support groove 125 may be provided with a first protrusion 1253 and a second protrusion 1254 that are spaced apart. The first support member 141 may be in contact with the first protrusion 1253 and the second protrusion 1254.

[0208] Exemplarily, the groove wall of the second support groove 126 may be provided with a third protrusion 1261. The second support member 142 may be in contact with the third protrusion 1261.

[0209] It can be understood that the carrier 12 contacts the first support member 141 through the first protrusion 1253 and the second protrusion 1254, and the carrier 12 contacts 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, improving the stability of the carrier 12 moving relative to the base 11 along the first direction X, and thus being beneficial to improving the imaging quality of the camera module 100.

[0210] Fig.16 is Figure 4 A partial exploded view of the piezoelectric actuator 15 shown in one embodiment.

[0211] As Fig.16 As shown, by way of example, the piezoelectric actuator 15 may include a preloading assembly 151, a resonator 152, a follower 153, a first circuit board 154, and a second circuit board 155. It can be understood that Fig.16 and the following respective drawings only schematically show some components included in the piezoelectric actuator 15, and the actual shape, actual size, actual position, and actual structure of these components are not limited by Fig.16 and the following respective drawings. For example, the piezoelectric actuator 15 may include more or fewer structures.

[0212] Fig.17 is Fig.16 a schematic structural view of the follower 153 shown from another angle. Fig.18 is Fig.17 a partial exploded schematic view of the follower 153 shown in one embodiment.

[0213] As Fig.17 and Fig.18 shown, by way of example, the follower 153 may include a follower body 1531 and a magnetic attracting body 1532. The magnetic attracting body 1532 may be fixedly connected to the follower body 1531. The material of the follower body 1531 may include stainless steel.

[0214] In other embodiments, the material of the follower body 1531 may also include other materials. Specifically, the present application does not make a limitation.

[0215] By way of example, the follower body 1531 may include a first connecting portion 1533 and a second connecting portion 1534.

[0216] By way of example, the second connecting portion 1534 may be bent and connected to the first connecting portion 1533, and at least a part thereof may be located on one side of the first connecting portion 1533.

[0217] It can be understood that, for the purpose of facilitating the description of the specific structure and shape of the follower body 1531, in this embodiment, the follower body 1531 is divided into two parts for description, but it does not affect that the follower body 1531 may be an integrally formed structure, that is, the first connecting portion 1533 and the second connecting portion 1534 may be integrally formed. In other embodiments, the follower body 1531 may also be formed by different independent structural members through an assembly process. For example, the first connecting portion 1533 and the second connecting portion 1534 of the follower body 1531 may be two independent structural members, and are fixedly connected by means of gluing, welding, etc.

[0218] By way of example, the magnetic attracting body 1532 may adopt a magnetic attracting material.

[0219] As Fig.17As shown, exemplarily, the magnetic attraction body 1532 can be fixedly connected to the second connecting portion 1534 of the driven member body 1531. In one embodiment, the magnetic attraction body 1532 can be fixedly connected to the second connecting portion 1534 by means such as gluing.

[0220] In other embodiments, the magnetic attraction body 1532 can also be fixedly connected to the second connecting portion 1534 by other means. Specifically, the present application does not make any limitations.

[0221] Exemplarily, the driven member 153 can have a first connecting surface 153a. In one embodiment, the first connecting surface 153a can be located on the surface of the magnetic attraction body 1532.

[0222] As Fig.17 and Fig.18 shown, exemplarily, the driven member body 1531 can further include a first sliding shaft portion 1535 and a second sliding shaft portion 1536.

[0223] Exemplarily, the first sliding shaft portion 1535 and the second sliding shaft portion 1536 can protrude from the surface of the first connecting portion 1533 facing the second connecting portion 1534 and are fixedly connected to the first connecting portion 1533.

[0224] Exemplarily, the first sliding shaft portion 1535 and the second sliding shaft portion 1536 can be two independent structural members and are fixedly connected to the first connecting portion 1533 by means such as gluing and welding.

[0225] In other embodiments, the first sliding shaft portion 1535, the second sliding shaft portion 1536 and the first connecting portion 1533 can also be an integrally formed structure. Specifically, the present application does not make any limitations.

[0226] Exemplarily, the cross-sections of the first sliding shaft portion 1535 and the second sliding shaft portion 1536 can be generally semicircular.

[0227] It can be understood that, compared with a sliding shaft whose cross-section is generally circular, the first sliding shaft portion 1535 and the second sliding shaft portion 1536 with a generally semicircular cross-section occupy less space in the second direction Y and are not likely to affect the reliability of the first sliding shaft portion 1535 and the second sliding shaft portion 1536, which is beneficial to the miniaturization of the piezoelectric actuator 15 and the motor 1.

[0228] As Fig.17 and Fig.18 shown, exemplarily, the surface of the first sliding shaft portion 1535 can protrude with a first boss 1537 and a second boss 1538 arranged at intervals. The surface of the second sliding shaft portion 1536 can protrude with a third boss 1539.

[0229] Please refer to Fig.17 , and in combination with Fig.16 As shown, by way of example, the first connecting portion 1533 may be provided with a friction groove 153b.

[0230] By way of example, the friction groove 153b may be located on a side of the first connecting portion 1533 away from the second connecting portion 1534. The friction groove 153b may extend along the first direction X. Herein, the friction groove 153b may extend along the first direction X, which means the maximum dimension of the friction groove 153b. For example, the length direction of the friction groove 153b may be generally parallel to the first direction X.

[0231] Fig.19A Yes Figure 3 Partial exploded view of the motor 1 shown in one embodiment Figure 3 . Fig.19B Yes Figure 3 Partial structural schematic diagram of the motor 1 shown in one embodiment Figure 2 . Fig. 20A Yes Fig.19B Partial cross-sectional schematic diagram of the motor 1 shown in one embodiment at the D-D line.

[0232] As Fig.19A , Fig.19B and Fig. 20A As shown, by way of example, the follower 153 may be fixedly connected to the carrier 12. The follower 153 may be movably connected to the base 11. It can be understood that the follower 153 may move closer to the base 11 along the Y-axis direction, so as to be movably connected to the base 11.

[0233] By way of example, the follower body 1531 may be movably connected to the base 11. The first connecting portion 1533 may be located on a side of the base 11 away from the carrier body 121 and is slidably connected to the base 11. A part of the second connecting portion 1534 may straddle the base 11 and extend into the accommodation space 114 of the base 11.

[0234] Fig. 20B Yes Fig. 20A Enlarged structural schematic diagram of the motor 1 shown in one embodiment at E.

[0235] As FIG. 19A to FIG. 20B As shown, by way of example, at least a part of the magnetic attraction body 1532 may be located in the first groove 123. The magnetic body 122 and the magnetic attraction body 1532 may be oppositely arranged and may be fixedly connected.

[0236] It can be understood that by disposing the first connecting portion 1533 and the second connecting portion 1534 on both sides of the base 11, the movable connection between the driven member 153 and the base 11 and the fixed connection between the driven member 153 and the carrier can be achieved simultaneously. In addition, the second connecting portion 1534 extends into the accommodation space 114, which can save the space of the motor 1 and is beneficial to improving the space utilization rate of the motor 1.

[0237] It can be understood that by disposing at least part of the magnetic body 122 and at least part of the magnetic attracting body 1532 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 can be improved, and thus the miniaturization of the motor 1 can be achieved.

[0238] In other embodiments, the positions of the magnetic body 122 and the magnetic attracting body 1532 can be interchanged. In other words, the driven member 153 can include a magnetic body, and the carrier 12 can include a magnetic attracting body. Specifically, the present application does not make any limitations.

[0239] As Fig. 20B shown, exemplarily, the driven member 153 can have a first connecting surface 153a. In one embodiment, the surface of the magnetic attracting body 1532 facing the magnetic body 122 can be the first connecting surface 153a.

[0240] As Fig. 20B shown, exemplarily, the carrier 12 can have a second connecting surface 12a. In one embodiment, the surface of the magnetic body 122 facing the magnetic attracting body 1532 can be the second connecting surface 12a.

[0241] As Fig. 20A and Fig. 20B shown, exemplarily, the first connecting surface 153a and the second connecting surface 12a can be magnetically attracted and connected. The first connecting surface 153a and the second connecting surface 12a can achieve fixed connection through point contact. In other words, the driven member 153 and the carrier 12 can achieve fixed connection through point contact. Among them, in an actual product, if the driven member 153 or the carrier 12 is deformed or displaced to a certain extent at the point contact position, resulting in small-area contact, it is also considered that the two achieve fixed connection through point contact.

[0242] It can be understood that the first connecting surface 153a and the second connecting surface 12a achieve magnetic attraction connection through point contact, which can decouple the degree-of-freedom limitation between the piezoelectric actuator 15 and the carrier 12. The point contact between the carrier 12 and the follower 153 only restricts the carrier 12 in the first direction X. In this way, when the position of the follower 153 deviates greatly relative to the base 11, this deviation 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 deviated greatly relative to the base 11. Thus, the carrier 12 can stably reciprocate relative to the base 11 in the first direction X, and the reliability of the carrier 12 is relatively high.

[0243] As Fig. 20A and Fig. 20B shown, exemplarily, at least a part of the first connecting surface 153a and at least a part of the second connecting surface 12a may be a curved surface, and the other may be a plane. In one implementation, at least a part of the first connecting surface 153a may be a curved surface, and at least a part of the second connecting surface 12a may be a plane. In another implementation, at least a part of the first connecting surface 153a may be a plane, and at least a part of the second connecting surface 12a may be a curved surface.

[0244] It can be understood that by setting at least a part of the first connecting surface 153a and at least a part of the second connecting surface 12a as a curved surface and the other as a plane, point contact between the first connecting surface 153a and the second connecting 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 a direction other than the first direction X is not easily transmitted to the carrier 12, and the reliability of the carrier 12 is relatively high.

[0245] Exemplarily, at least a part of the first connecting surface 153a and at least a part of the second connecting surface 12a may both be curved surfaces.

[0246] It can be understood that by setting at least a part of the first connecting surface 153a and at least a part of the second connecting surface 12a both as curved surfaces, point contact between the first connecting surface 153a and the second connecting 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 a direction other than the first direction X is not easily transmitted to the carrier 12, and the reliability of the carrier 12 is relatively high.

[0247] Exemplarily, the first connecting surface 153a may be an arc surface, and the second connecting surface 12a may be a plane.

[0248] It can be understood that by setting the first connecting surface 153a as an arc surface and the second connecting surface 12a as a plane surface, point contact between the first connecting surface 153a and the second connecting surface 12a can be achieved, thereby realizing point contact between the follower 153 and the carrier 12. In this way, the change in the position of the follower 153 in a direction other than the first direction X is not easily transmitted to the carrier 12, and the reliability of the carrier 12 is relatively high.

[0249] In other embodiments, the first connecting surface 153a and the second connecting surface 12a can also adopt other setting methods. For example, the first connecting surface 153a can also be a plane surface, and the second connecting surface 12a can also be an arc surface. Specifically, the present application does not make any limitations.

[0250] Exemplarily, the surface of the magnetic attracting body 1532 facing away from the second connecting surface 12a can be a curved surface, a plane surface, or other forms of surfaces. Specifically, the present application does not make any limitations. Fig.21 is Fig.19B A partial cross-sectional schematic view of one embodiment of the motor 1 shown at the F-F line.

[0251] As Fig.21 shown, exemplarily, the follower 153 can be movably connected to the base 11.

[0252] Exemplarily, at least a part of the first sliding shaft portion 1535 can be located in the first sliding groove 1151, and at least a part of the second sliding shaft portion 1536 can be located in the second sliding groove 1152.

[0253] 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. Both the first sliding groove 1151 and the second sliding groove 1152 extend along the first direction X. 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 both the first sliding shaft portion 1535 and the second sliding shaft portion 1536 are 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.

[0254] It can be understood that since the cross-sections of both the first sliding shaft portion 1535 and the second sliding shaft portion 1536 can be substantially 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.

[0255] Exemplarily, the cross-section of the first chute 1151 is generally in a "V" shape, and the first sliding shaft portion 1535 abuts against both side walls of the first chute 1151. In other words, a zero-fit state exists between the first sliding shaft portion 1535 and both side walls of the first chute 1151.

[0256] It can be understood that the first chute 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 extending direction of the first chute 1151 (i.e., the first direction X), which can reduce the probability of the first sliding shaft portion 1535 deviating, thereby reducing the probability of the follower 153 deviating when moving along the first direction X, and further reducing the probability of the carrier 12 deviating when moving along the first direction X.

[0257] In addition, there is a certain amount of movement space between the second sliding shaft portion 1536 and the second chute 1152, which can reduce the possibility of interference, thereby avoiding the occurrence of jamming when the follower 153 moves along the first direction X.

[0258] Exemplarily, the first support groove 125 and the second support groove 126 can extend along the first direction X, and the first support groove 125 and the second support groove 126 can be arranged along the second direction Y. The first chute 1151 and the second chute 1152 can extend along the first direction X, and the first chute 1151 and the second chute 1152 can be arranged along the third direction Z. The first support groove 125 and the second support groove 126 can be independent of the first chute 1151 and the second chute 1152, and the arrangement directions of the first support groove 125 and the second support groove 126 and the arrangement directions of the first chute 1151 and the second chute 1152 can be substantially perpendicular.

[0259] It can be understood that the extending direction between the first support groove 125 and the second support groove 126 can be substantially parallel to the extending direction between the first chute 1151 and the second chute 1152. In this way, 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 chute 1151 and the second chute 1152. The first support groove 125 and the second support groove 126 connecting the carrier 12 and the first chute 1151 and the second chute 1152 connecting the piezoelectric actuator 15 are independent of each other and are substantially in an orthogonal layout, which can ensure the movement stability of the carrier 12 and the follower 153.

[0260] Please refer to Fig.21 and in combination 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 the two groove walls of the first chute 1151. The third boss 1539 of the second sliding shaft portion 1536 can abut against the second chute 1152.

[0261] It can be understood that the contact between the base 11 and the first sliding shaft portion 1535 is achieved through the first boss 1537 and the second boss 1538, and the contact between the base 11 and the second sliding shaft portion 1536 is achieved 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, improving the stability of the movement of the follower 153 relative to the base 11 in the first direction X, and thus improving the stability of the movement of the carrier 12 relative to the base 11 in the first direction X.

[0262] Fig.22A is Fig.19B A partial cross-sectional schematic diagram of another embodiment of the motor 1 shown at the D-D line. Fig. 22B is Fig.22A A schematic enlarged view of the structure of an embodiment of the motor 1 shown at G.

[0263] As Fig.22A and Fig. 22B shown, exemplarily, the first connection surface 153a can include a flat surface 153c and an arc surface 153d, and the arc surface 153d can be connected to the flat surface 153c. The second connection surface 12a can be a flat surface.

[0264] Exemplarily, the arc surface 153d of the first connection surface 153a can be magnetically attracted and connected to the second connection surface 12a.

[0265] It can be understood that by setting a part of the first connection surface 153a as the arc surface 153d and the second connection surface 12a 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 magnetic attracting 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 a direction other than the first direction X is not easily transmitted to the carrier 12, and the carrier 12 is not easily moved relative to the base 11 in a direction other than the first direction X, and the reliability of the carrier 12 is relatively high.

[0266] As Fig.22A and Fig. 22BAs shown, exemplarily, the magnetic attractor 1532 may include a magnetic attractor body 1501 and a convex hull 1502. The surface of the magnetic attractor body 1501 facing the magnetic body 122 may be a flat surface. The convex hull 1502 may protrude from the surface of the magnetic attractor body 1501 facing the magnetic body 122 and be fixedly connected to the magnetic attractor body 1501.

[0267] Exemplarily, the convex hull 1502 and the magnetic body 122 may achieve magnetic attraction connection through point contact.

[0268] Exemplarily, the surface of the magnetic attractor 1532 facing away from the second connection surface 12a may be a curved surface, a flat surface, or other forms of surfaces. Specifically, the present application does not make any limitations.

[0269] Fig.23 is Fig.16 The schematic structural diagram of the resonator 152 shown in one embodiment. Fig.24 is Fig.23 The partial exploded view of the resonator 152 shown in one embodiment.

[0270] As Fig.23 and Fig.24 shown, exemplarily, the resonator 152 may include an elastomer 1521, driving feet 1522, a first piezoelectric ceramic 1523, and a second piezoelectric ceramic 1524. It can be understood that Fig.23 , Fig.24 and the following respective drawings only schematically show some components included in the resonator 152, and the actual shapes, actual sizes, actual positions, and actual structures of these components are not limited by Fig.23 , Fig.24 and the following respective drawings. For example, the resonator 152 may include more or fewer structures.

[0271] Exemplarily, the elastomer 1521 may include a first surface 152a and a second surface 152b arranged back to back.

[0272] Exemplarily, the driving feet 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.

[0273] It can be understood that the first piezoelectric ceramic 1523 and the second piezoelectric ceramic 1524 may deform when energized, and the elastomer 1521 may convert this deformation into a macroscopic displacement.

[0274] 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 a Chinese character 'Wang'.

[0275] 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, this application does not make any limitations.

[0276] 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.

[0277] 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 generally 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.

[0278] 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 generally 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).

[0279] Fig.25 Yes Fig.16 Partial structural schematic diagram of the preloading assembly 151 shown in one embodiment. Fig.26 Yes Fig.25 Partial exploded schematic diagram of the preloading assembly 151 shown in one embodiment.

[0280] Please refer to Fig.25 and Fig.26 and in combination with Fig.16 shown, exemplarily, the preloading assembly 151 may include a bracket 156, a reed 157, and a pressure column 158.

[0281] Exemplarily, the bracket 156 may include a first end 1561, a middle part 1562, and a second end 1563 connected in sequence.

[0282] 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, elastic deformations may occur in the first end 1571, the middle portion 1572, and the second end 1573 of the reed 157. Among them, elastic deformation refers to the change in the relative positions of points in a solid under the action of an external force, 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.

[0283] As Fig.25 shown, exemplarily, the reed 157 may be fixedly connected to the bracket 156. In one embodiment, the middle portion 1572 of the reed 157 may be fixedly connected to the first end 1561 of the bracket 156.

[0284] Exemplarily, the reed 157 may be fixedly connected to the bracket 156 by means such as gluing and welding. In other embodiments, the reed 157 may also be fixedly connected to the bracket 156 by other means.

[0285] Fig. 27 is Figure 4 A partial structural schematic diagram of the piezoelectric actuator 15 in one embodiment as shown.

[0286] As Fig. 27 shown, exemplarily, the resonator 152 may be fixedly connected to the bracket 156. In one embodiment, the resonator 152 may be fixedly connected to the middle portion 1562 of the bracket 156.

[0287] Exemplarily, the elastomer 1521 may be fixedly connected to the preloading assembly 151. In one embodiment, the elastomer 1521 may be fixedly connected to the bracket 156.

[0288] It can be understood that the preloading assembly 151 can play a role in fixing and supporting the elastomer 1521.

[0289] Fig.28 is Figure 4 A partial structural schematic diagram of the piezoelectric actuator 15 in one embodiment as shown. Fig.29 is Figure 3 A partial exploded view of the motor 1 in one embodiment as shown Figure 4 . Fig.30 is Figure 3 A partial explosion of the motor 1 in one embodiment as shown Figure 5 . Fig.31 is Figure 3 A partial structural schematic of the motor 1 in one embodiment as shown Figure 3 .

[0290] As Figure 28 to Figure 31 shown, by way of example, the first circuit board 154 may include a first connection end 1541, a first intermediate end 1542, and a second connection end 1543 that are connected in sequence.

[0291] By way of example, the first connection end 1541 of the first circuit board 154 may be fixedly connected and electrically connected to the first piezoelectric ceramic 1523. The first intermediate end 1542 of the first circuit board 154 may be fixedly connected to the bracket 156. The second connection end 1543 of the first circuit board 154 may be located between the bracket 156 and the base 11.

[0292] By way of example, the second circuit board 155 may include a third connection end 1551, a second intermediate end 1552, and a fourth connection end 1553.

[0293] By way of example, the third connection end 1551 of the second circuit board 155 may be fixedly connected and electrically connected to the second piezoelectric ceramic 1524. The second intermediate end 1552 of the second circuit board 155 may be fixedly connected to the bracket 156. The fourth connection end 1553 of the second circuit board 155 may be located between the bracket 156 and the base 11.

[0294] Please refer to Fig.31 and in combination with Figure 7 shown, by way of example, the piezoelectric actuator 15 may be electrically connected to the base 11.

[0295] By way of example, the second connection end 1543 of the first circuit board 154 may be electrically connected to the first electrical connection end 1121. The first trace 1131 may 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 may 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.

[0296] By way of example, the fourth connection end 1553 of the second circuit board 155 may be electrically connected to the second electrical connection end 1122. The second trace 1132 may 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 may 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.

[0297] Fig.32 is Fig.31 a partial cross-sectional schematic view of an embodiment of the motor 1 at the H-H line as shown.

[0298] As Fig.31 and Fig.32As shown, exemplarily, the piezoelectric actuator 15 can be movably connected to the base 11 and fixedly connected to the carrier 12. The piezoelectric actuator 15 can be used to drive the carrier 12 to move relative to the base 11 in the first direction X.

[0299] Exemplarily, the follower 153 can be movably connected to the base 11, and the resonator 152 can be movably connected to the follower 153. In one embodiment, the resonator 152 can be movably connected to the follower 153 through the driving foot 1522.

[0300] Exemplarily, the preloading assembly 151 can be fixed to the base 11.

[0301] As Fig.30 and Fig.32 shown, exemplarily, 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 (please refer to Fig.25 ) can be fixedly connected to the base 11, and the pressure column 158 can be fixedly connected to the base 11 and fix the second end 1563 of the bracket 156 on the base 11.

[0302] It can be understood that the reed 157 elastically fixes the first end 1561 of the bracket 156 to the base 11. The reverse K value of the reed 157 is small, which can avoid large variation in the pre-pressure of the reed 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 avoiding inelastic deformation of the reed 157. Herein, inelastic deformation refers to the change in the relative positions of points in a solid under the action of an external force, and when the external force is removed, the solid cannot return to its original state.

[0303] As Fig.31 and Fig.32 shown, exemplarily, the preloading assembly 151 can be used to squeeze the driving foot 1522 of the resonator 152 against the follower 153. The driving foot 1522 of the resonator 152 can be located in the friction groove 153b of the follower 153 and contact the groove wall of the friction groove 153b.

[0304] It can be understood that the driving foot 1522 of the resonator 152 can friction with the groove wall of the friction groove 153b, thereby generating a force in the first direction X, and further driving the follower 153 to move relative to the resonator 152 in the first direction X.

[0305] It can be understood that the preloading component 151 can be used to provide a preloading force for the resonator 152 to abut against the follower 153, so that the resonator 152 can closely abut against the follower 153 under the action of the preloading force, which is beneficial to transfer the macroscopic displacement generated by the microscopic vibration of the resonator 152 to the follower 153.

[0306] Exemplarily, the resonator 152 is used to drive the follower 153 to drive the carrier 12 to move relative to the base 11 in the first direction X when powered on.

[0307] It can be understood that the piezoelectric actuator 15 can control the movement of the carrier 12 relative to the base 11 in the first direction X, so as to achieve the focusing of the camera module 100 (please refer to Figure 2 ). In this embodiment, the carrier 12 can be driven by the piezoelectric actuator 15. Therefore, the motor 1 in this embodiment is not a moving magnet type motor or a moving coil type 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 create space to avoid magnetic interference, the problem of the large size of the motor 1 can be avoided, which is beneficial to the miniaturization of the motor 1 in this embodiment.

[0308] As Fig.32 shown, exemplarily, compared with the second support groove 126, the first support groove 125 can be closer to the piezoelectric actuator 15. The first support member 141 abuts against both side walls of the first support groove 125, and the first support member 141 and both side walls of the first support groove 125 are in a zero-fit state.

[0309] It can be understood that by arranging the first support 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 support member 141 are tightly fitted. 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.

[0310] 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-fit state.

[0311] In this way, there can be a gap between the second support member 142 and the second support groove 126. This gap can enable the second support member 142 to have a certain degree of movement space on the surface substantially perpendicular to the first direction X, reducing the possibility of interference and avoiding phenomena such as jamming when the carrier 12 moves in the first direction X.

[0312] Fig.33A Is Figure 4 a partial cross-sectional schematic diagram of an embodiment of the piezoelectric actuator 15 at the I-I line shown. Fig.33B is Fig.33A A schematic enlarged view of a structure of an embodiment of the piezoelectric actuator 15 shown at J.

[0313] As Fig.33A and Fig.33B shown, exemplarily, a first wear-resistant layer 1528 may be provided on the surface of the driving foot 1522. The first wear-resistant layer 1528 may be in contact with the follower 153.

[0314] Exemplarily, 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 stainless steel surface nitriding technology.

[0315] It can be understood 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 process between the driving foot 1522 and the follower 153, the driving foot 1522 is not likely to be worn or chipped, and black dots or black shadows are not likely to appear in the images or videos captured by the camera module 100, and the imaging quality of the camera module 100 is relatively high.

[0316] In other embodiments, the material of the first wear-resistant layer 1528 may also include other materials. Specifically, this application does not make any limitations.

[0317] Exemplarily, a second wear-resistant layer 153e may be provided on the groove wall of the friction groove 153b of the follower 153. The second wear-resistant layer 153e may be in contact with the first wear-resistant layer 1528 of the driving foot 1522.

[0318] Exemplarily, 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 follower 153 by stainless steel surface nitriding technology.

[0319] It can be understood that stainless steel has relatively high hardness, and the second wear-resistant layer 153e also has relatively high hardness, which can improve the hardness of the groove wall of the friction groove 153b of the follower 153. In this way, during the friction process between the driving foot 1522 and the follower 153, the follower 153 is not likely to be worn or chipped, and black dots or black shadows are not likely to appear in the images or videos captured by the camera module 100 (please refer to Figure 2 ) and the imaging quality of the camera module 100 is relatively high.

[0320] In other embodiments, the material of the second wear-resistant layer 153e may also include other materials. Specifically, this application does not make any limitations.

[0321] In other embodiments, the follower 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 follower 153 facing the driving foot 1522 of the resonator 152. Specifically, the present application does not make a limitation.

[0322] Fig.34A Yes Figure 4 Partial cross-sectional schematic diagram of another embodiment of the piezoelectric actuator 15 shown at the I-I line. Fig.34B Yes Fig.34A Structural enlarged schematic diagram of an embodiment of the piezoelectric actuator 15 shown at K.

[0323] As Fig.34A And Fig.34B As shown, exemplarily, the groove wall of the friction groove 153b of the follower 153 may be provided with a ceramic layer 153f. The ceramic layer 153f may be in contact with the first wear-resistant layer 1528 of the driving foot 1522.

[0324] In one embodiment, the ceramic layer 153f may cover the bottom of the groove wall of the friction groove 153b. The driving foot 1522 may be in contact with the surface of the ceramic layer 153f.

[0325] Exemplarily, the material of the ceramic layer 153f may include ceramics.

[0326] It can be understood that the hardness of the ceramics 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 follower 153. In this way, during the friction between the driving foot 1522 and the follower 153, the follower 153 is not likely to be worn or chipped, and it is not easy to have black dots or black shadows in the images or videos captured by the camera module 100 (please refer to Figure 2 ), and the imaging quality of the camera module 100 is relatively high.

[0327] In other embodiments, the material of the ceramic layer 153f may also include other materials. Specifically, the present application does not make a limitation.

[0328] Exemplarily, the thickness T of the ceramic layer 153f 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, etc.

[0329] It can be understood that by setting the thickness T of the ceramic layer 153f within a range 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 follower 153. In this way, during the friction between the driving foot 1522 and the follower 153, the follower 153 is not likely to be worn or chipped. In the image or video captured by the camera module 100 (please refer to Figure 2 ), there are not likely to be black dots or black shadows, and the imaging quality of the camera module 100 is relatively high.

[0330] In other embodiments, the thickness of the ceramic layer 153f can also meet other ranges. Specifically, this application does not make any limitations.

[0331] In other embodiments, the follower 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 follower 153 facing the driving foot 1522 of the resonator 152. Specifically, this application does not make any limitations.

[0332] Fig.35 Yes Fig.31 It is a partial cross-sectional schematic diagram of an embodiment of the motor 1 shown in Fig.36 Yes Fig.31 It is a partial cross-sectional schematic diagram of an embodiment of the motor 1 shown in

[0333] As Fig.35 And Fig.36 shown, exemplarily, the pressing post 158 can be fixedly connected to the base 11, and the pressing post 158 can be in contact with the second end 1563 of the bracket 156.

[0334] Exemplarily, the pressing post 158 can be fixedly connected to the base 11 by means such as gluing or welding.

[0335] In other embodiments, the pressing post 158 can also be fixedly connected to the base 11 by other means such as riveting. Specifically, this application does not make any limitations.

[0336] Exemplarily, the cross-section of the pressing post 158 that is substantially perpendicular to the third direction Z can be substantially circular.

[0337] It can be understood that the contact mode between the pressing post 158 and the second end 1563 of the bracket 156 can be the contact between an arc surface and a plane. In other words, the contact mode between the pressing post 158 and the bracket 156 can be line contact. Among them, in an actual product, if the pressing post 158 or the bracket 156 is deformed or displaced to a certain extent at the position of line contact, resulting in small-area contact, it can also be considered that the two are fixedly connected through line contact by default.

[0338] It can be understood that the contact between the pressing post 158 and the bracket 156 is a line contact, which can improve the torsional stability of the bracket 156, so that the preloading assembly 151 can provide a preloading force for the driving foot 1522 of the resonator 152 (please refer to Fig.32 ) to extrude the follower 153. The resonator 152 can be in close contact with the follower 153 under the action of the preloading force, 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 pressing post 158 and the bracket 156 is a line contact, the bracket 156 has strong anti-sway ability, which can avoid the output force fluctuation and noise caused by the sway of the bracket 156, and the user experience is better.

[0339] In other embodiments, the cross-section of the pressing post 158 can also be approximately in other shapes. For example, the cross-section of the pressing post 158 can also be approximately semi-circular, and the arc surface of the pressing post 158 contacts the second end 1563 of the bracket 156. At this time, the contact method between the pressing post 158 and the bracket 156 can also be a line contact. Specifically, the present application does not make a limitation.

[0340] Fig.37 Yes Fig.31 It is a partial cross-sectional schematic diagram of another embodiment of the motor 1 shown in the M-M line.

[0341] As Fig.37 shown, exemplarily, the cross-section of the pressing post 158 that is approximately perpendicular to the third direction Z can be approximately polygonal. In one embodiment, the cross-section of the pressing post 158 can be approximately hexagonal. Among them, the hexagon can be a regular hexagon or other forms of hexagons. Specifically, the present application does not make a limitation.

[0342] It can be understood that the contact between the pressing post 158 and the bracket 156 is a surface contact, which can improve the torsional stability of the bracket 156, so that the preloading assembly 151 can provide a preloading force for the driving foot 1522 of the resonator 152 (please refer to Fig.32 ) to extrude the follower 153. The resonator 152 can be in close contact with the follower 153 under the action of the preloading force, which is conducive to ensuring that the macroscopic displacement generated by the microscopic vibration of the resonator 152 is transmitted to the follower 153.

[0343] In other embodiments, the cross-section of the pressing post 158 can also be approximately in other shapes. For example, the cross-section of the pressing post 158 can also be approximately quadrilateral, pentagonal or irregular shape, etc. At this time, the contact method between the pressing post 158 and the bracket 156 can also be a surface contact. Specifically, the present application does not make a limitation.

[0344] Fig.38 Yes Fig.31Schematic structural diagram of the motor 1 shown from another angle. Fig.39 is Fig.38 Partial exploded schematic diagram of the motor 1 shown in one embodiment.

[0345] As Fig.38 and Fig.39 shown, exemplarily, 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 respectively 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.

[0346] 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 in the first direction X, and the bracket 156 is not easily disengaged from the base 11, and the reliability of the bracket 156 is relatively good. 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 (please refer to 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.

[0347] Exemplarily, the first end 1561 of the bracket 156 can be fixedly connected to the first limiting groove 116, and the second end 1563 of the bracket 156 can be fixedly connected to the second limiting groove 117.

[0348] It can be understood that the base 11 can limit the bracket 156 in the third direction Z, and the bracket 156 is not easily disengaged from the base 11, and the reliability of the bracket 156 is relatively good. 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 (please refer to 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.

[0349] Fig.40 is Figure 4 Partial structural schematic diagram of the circuit board assembly 16 shown from another angle. Fig.41 is Fig.40 Partial structural schematic diagram of the circuit board assembly 16 shown from another angle. Fig.42 is Figure 3 Partial structural schematic of the motor 1 shown in one embodiment Figure 4 . Fig.43 is Fig.42 Partial cross-sectional schematic diagram of the motor 1 shown in one embodiment at the N-N line.

[0350] As Figure 40 to Figure 43 shown, by way of example, 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.

[0351] As Fig.41 shown, by way of example, the position sensor 162 may be fixedly connected to one side of the main circuit board 161 and electrically connected to the main circuit board 161.

[0352] As Fig.42 and Fig.43 shown, by way of example, the circuit board assembly 16 may be fixedly connected to the base 11 and located on the side of the base 11 away from the piezoelectric actuator 15.

[0353] By way of example, the main circuit board 161 may be fixedly connected to the base 11 and located on the side of the base 11 away from the piezoelectric actuator 15.

[0354] By way of example, the main circuit board 161 may be fixedly connected to the base 11 by means of gluing or the like. In other embodiments, the main circuit board 161 may also be fixedly connected to the base 11 by other means. Specifically, the present application does not make any limitations.

[0355] As Fig.43 shown, by way of example, at least a part of the position sensor 162 may be located within the third through hole 111a and the fourth through hole 111b of the base 11 (please refer to Figure 6 ).

[0356] As Fig.43 shown, by way of example, the third magnetic member 163 may be fixedly connected to the carrier 12. In one embodiment, at least a part of the third magnetic member 163 may be located within the third mounting groove 1273 of the carrier 12.

[0357] As Fig.43 shown, by way of example, the position sensor 162 may be disposed opposite to the third magnetic member 163.

[0358] By way of example, the position sensor 162 may be a Tunnel Magneto Resistance (TMR) sensor or a Hall sensor.

[0359] Exemplarily, the working principle of the TMR sensor is based on the magnetoresistance 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 magnetoresistance. This change in resistance value is related to the change in the external magnetic field, so it can be used to detect the intensity and direction of the magnetic field.

[0360] Exemplarily, the working principle of the Hall sensor is based on the Hall effect, that is, when a current passes through a conductor and 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 intensity and direction of the magnetic field, so it can be used to detect the intensity and direction of the magnetic field.

[0361] It can be understood that the position sensor 162 can detect the change in the magnetic field of the third magnetic member 163, and the processor can obtain the real-time position of the carrier 12 according to the detection result of the position sensor 162, so as to realize precise control of the displacement of the carrier 12, and further realize closed-loop control of the carrier 12, and the reliability of the carrier 12 is relatively high.

[0362] In other embodiments, the position sensor 162 may also adopt other types of sensors. Specifically, the present application does not make any limitations.

[0363] As Fig.40 and Fig.42 shown, the electronic device 164 can be fixedly connected to the main circuit board 161 and is located on the side of the main circuit board 161 away from the base 11.

[0364] Exemplarily, in the second direction Y, the height of the anti-collision protrusion 118 of the base 11 can be greater than the height of the electronic device 164.

[0365] It can be understood that since the height of the anti-collision protrusion 118 in the second direction Y is greater than the height of the electronic device 164 in the second direction Y, the anti-collision protrusion 118 can play a role in protecting 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, and the electronic device 164 is not likely to malfunction or even be damaged due to collision, and the reliability of the electronic device 164 and the circuit board assembly 16 is relatively high.

[0366] Please refer to Fig.42 and Fig.43 , and in combination with Figure 31 shown, exemplarily, the third electrical connection end 1123 and the fourth electrical connection end 1124 can be electrically connected to the main circuit board 161.

[0367] 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.

[0368] It can be understood 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 setting additional structural members, which is beneficial to reducing the number of structural members of the motor 1, and thus is beneficial to realizing the miniaturization of the motor 1.

[0369] Figure 44 Yes Figure 4 FIG. 10 is a partial structural schematic diagram of the motor 1 in one embodiment. Figure 45A Yes Figure 3 FIG. 14 is a partial cross-sectional schematic diagram of the motor 1 in one embodiment along the O-O line. Figure 45B Yes Figure 45A FIG. 18 is an enlarged structural schematic diagram of the motor 1 at P in one embodiment.

[0370] As Figure 44 、 Figure 45A And Figure 45B As shown in FIGS. 27 and 28, exemplarily, the motor 1 may further include a first dust-catching glue 181.

[0371] Exemplarily, the first dust-catching glue 181 may be fixedly connected to the driven member 153 and located on the side of the driven member 153 close to the resonator 152. In one embodiment, the first dust-catching glue 181 may be fixedly connected to the first connecting portion 1533 of the driven member 153 and located on the side of the first connecting portion 1533 of the driven member 153 away from the second connecting portion 1534.

[0372] It can be understood that the first dust-catching glue 181 can capture the debris generated by the friction between the driving feet 1522 of the resonator 152 and the driven member 153, preventing the debris from falling onto the lens, and thus avoiding the situation of black dots or black shadows appearing in the images captured by the camera module 100 (please refer to FIGS. Figure 2 ), thereby improving the imaging quality of the camera module 100.

[0373] Figure 46 Yes Figure 4 FIG. 41 is a partial structural schematic diagram of the housing 17 in one embodiment.

[0374] As Figure 46As shown, by way of example, the housing 17 may include a top 171, a first side 172, a second side 173, a third side 174, and a fourth side 175.

[0375] By way of example, the first side 172, the second side 173, the third side 174, and the fourth side 175 may be located on the same side of the top 171 and fixedly connected to the top 171. Among them, the first side 172 and the third side 174 may be opposite and spaced apart, and the second side 173 may be connected between the first side 172 and the third side 174. The second side 173 and the fourth side 175 may be opposite and spaced apart, and the first side 172 may be connected between the second side 173 and the fourth side 175. In other embodiments, the housing 17 may also adopt other structures. Specifically, the present application does not make any limitations.

[0376] It can be understood that, for the convenience of describing the specific structure and shape of the housing 17, in this embodiment, the housing 17 is divided into five parts for description, 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 may also be formed by different independent structural members 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 may be independent structural members and fixedly connected to the top 171 by means of gluing, welding, etc.

[0377] Figure 47 is Figure 3 A partial structural schematic diagram of the motor 1 shown from another angle. Figure 48A is Figure 3 A partial cross-sectional schematic diagram of an embodiment of the motor 1 at the Q-Q line shown.

[0378] As Figure 47 and Figure 48A shown, by way of example, the motor 1 may further include a second dust-catching glue 182 and a third dust-catching glue 183.

[0379] As Figure 48A shown, by way of example, the second dust-catching glue 182 may be located on the bottom plate 1111 fixedly connected to the base 11 and on the side of the bottom plate 1111 close to the first side plate 1112.

[0380] It can be understood that the second dust-catching glue 182 can capture the debris generated by the friction between the driving feet 1522 (please refer to Figure 45A ) of the resonator 152 and the follower 153 (please refer to Figure 45A ), avoiding the debris from falling onto the lens, thereby avoiding the camera module 100 (please refer to​Figure 2 ) In the case where black dots or black shadows appear in the captured image, thereby improving the imaging quality of the camera module 100.

[0381] Figure 48B is Figure 48A An enlarged schematic view of the structure of an embodiment of the motor 1 at R shown in the figure.

[0382] As Figure 47 , Figure 48A and Figure 48B shown, exemplarily, the third dust-catching glue 183 can be fixedly connected to the top 171 of the housing 17 and is located on the side of the top 171 close to the base 11.

[0383] It can be understood that the third dust-catching glue 183 can capture the debris generated by the friction between the driving foot 1522 of the resonator 152 (please refer to Figure 45A ) and the follower 153 (please refer to Figure 45A ), avoiding the debris from falling onto the lens, thereby avoiding the situation where black dots or black shadows appear in the image captured by the camera module 100 (please refer to Figure 2 ), and further improving the imaging quality of the camera module 100.

[0384] As Figure 48A and Figure 48B shown, the anti-collision protrusion 118 of the base 11 can be oppositely arranged to the third side portion 174 of the housing 17.

[0385] It can be understood that during the process of assembling the housing 17 onto the base 11, the housing 17 is not likely to collide with the electronic components 164 of the circuit board assembly 16, and the electronic components 164 are not likely to malfunction or even be damaged due to the collision, thereby ensuring the reliability of the electronic components 164, and further ensuring the reliability of the circuit board assembly 16 and the motor 1.

[0386] It should be noted that, without conflict, the embodiments and features in the embodiments in this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the above-described multiple embodiments can also be arbitrarily combined according to actual needs.

[0387] It should be noted that all the above drawings are exemplary illustrations of this application and do not represent the actual size of the product. And the dimensional proportional relationship between the components in the drawings is not a limitation on the actual product of this application. The above are only some embodiments and embodiments of this application, and the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to 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); 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.

2. The motor (1) according to claim 1, 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).

3. The motor (1) according to claim 1 or 2, 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).

4. The motor (1) according to claim 3, 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).

5. The motor (1) according to claim 3, 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).

6. The motor (1) according to claim 5, 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).

7. The motor (1) according to claim 6, 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.

8. The motor (1) according to claim 7, 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).

9. The motor (1) according to claim 8, characterized in that The cross section of the first supporting groove (125) is in a "V" shape or a trapezoidal shape.

10. The motor (1) according to any one of claims 7 to 9, 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).

11. The motor (1) according to any one of claims 6 to 9, 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).

12. The motor (1) according to claim 11, characterized in that The cross-sections of the first sliding shaft portion (1535) and the second sliding shaft portion (1536) are semicircular.

13. The motor (1) according to claim 5, 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).

14. The motor (1) according to claim 1 or 2, 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.

15. The motor (1) according to claim 1 or 2, 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.

16. The motor (1) according to claim 1 or 2, 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.

17. The motor (1) according to claim 13, 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).

18. The motor (1) according to claim 17, 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).

19. The motor (1) according to claim 17, 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).

20. The motor (1) according to claim 17, characterized in that The cross section of the pressure column (158) is circular, semicircular or polygonal.

21. The motor (1) according to claim 17, 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.

22. The motor (1) according to claim 21, 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.

23. The motor (1) according to claim 22, 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).

24. The motor (1) according to claim 22, 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).

25. The motor (1) according to any one of claims 17 to 24, 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).

26. The motor (1) according to any one of claims 17 to 24, 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).

27. The motor (1) according to any one of claims 17 to 24, 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).

28. A camera module (100), characterized in that: It comprises a lens and a motor (1) as claimed in any one of claims 1 to 27, wherein the lens is fixedly connected to the carrier (12).

29. An electronic device (1000), characterized in that: It comprises a housing (200) and a camera module (100) according to claim 28, wherein the camera module (100) is arranged in the housing (200).

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