Drive assembly and electronic device

Abstract

This application provides a drive assembly and an electronic device. The drive assembly includes a drive body, a drive head, and a resilient pin. The drive head is fixed to one end of the drive body, and the drive body through-hole of the drive body communicates with the drive head through-hole of the drive head. The outer periphery of the resilient pin abuts against the wall of the drive head through-hole to generate friction. When the drive body is powered, the drive body deforms in the axial direction of the drive body through-hole. Under the action of the drive body and the friction between the resilient pin and the drive head through-hole, the drive head drives the resilient pin to move within the drive body through-hole and the drive head through-hole. The solution of this application is beneficial for optimizing the performance of the drive assembly in terms of driveable stroke, space occupied, payload mass, drive accuracy, and movement speed.

Description

Technical Field

[0001] This application relates to the field of electronic devices, and more specifically, to driving components and electronic devices. Background Technology

[0002] Electronic devices can incorporate drive components to achieve their respective functions. For example, a focusing motor can be installed inside a camera to enable autofocus. Alternatively, a pop-up motor can be installed within a camera to allow components to pop out of the electronic device or retract into it.

[0003] The driving performance of drive components, such as drive range, space occupation, load mass, driving accuracy, and movement speed, should meet the usage requirements of electronic devices. How to achieve relatively optimal driving performance of drive components is a problem that needs to be solved. Summary of the Invention

[0004] This application provides a driving component and an electronic device, with the aim of optimizing the driving performance of the driving component.

[0005] Firstly, a driving component is provided, including:

[0006] The driving body includes a driving body through hole;

[0007] A driving head is fixed to one end of the driving body. The driving head includes a driving head through hole, which is connected to and parallel to the through hole of the driving body.

[0008] A resilient pin is housed in the through hole of the drive head, and the outer periphery of the resilient pin abuts against the wall of the through hole of the drive head.

[0009] When the driving body is powered, the driving body deforms in the axial direction of the through hole of the driving body, and the driving head drives the elastic pin to move under the action of the driving body.

[0010] This application provides a drive assembly. By supplying power to the drive body, the drive body itself can deform in a specified direction of movement. The drive head is fixedly connected to the drive body, so the drive body can drive the drive head to have a displacement in the specified direction of movement. The drive head's through-hole abuts against a resilient pin, allowing the resilient pin to follow the drive head and move within the drive body's through-hole in the specified direction of movement. Since the extension direction of the resilient pin is the specified direction of movement, and both the drive body and drive head extend along this direction, the drive assembly occupies relatively little space perpendicular to the specified direction of movement. Through the periodic deformation of the drive body, the displacement of the resilient pin over multiple cycles can be accumulated, thus facilitating a relatively long movable stroke. Furthermore, the drive body's through-hole can also be used to guide the resilient pin.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the driving body includes a first driving body end face, which is fixedly connected to the driving head. When the driving body is powered, the first driving body end face has a deformation in the axial direction of the through hole of the driving body. Under the drive of the first driving body end face, the driving head and the elastic pin move in the axial direction of the through hole of the driving body.

[0012] After the drive body is powered, the drive body can extend or retract in the direction of the hole axis of the drive body through hole, thereby driving the drive head and the elastic pin to move in the direction of the hole axis of the drive body through hole.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, when the drive body is powered, the end face of the first drive body moves back and forth in the direction of the hole axis of the drive body through hole. When the movement time of the end face of the first drive body toward the drive head is greater than the movement time of the end face of the first drive body away from the drive head, the elastic pin moves in the direction from the drive body through hole to the drive head through hole.

[0014] After the drive body is powered, it can switch between an extended state and a retracted state. When the drive body extends slowly, the friction between the elastic pin and the wall of the drive head through-hole is mainly static friction. The elastic pin can move out of the drive body through-hole under the drive body's influence. When the drive body retracts rapidly, due to the inertia of the elastic pin continuing to move out of the drive body through-hole, the elastic pin may not move into the drive body through-hole, or the displacement of the elastic pin into the drive body through-hole is relatively small. The elastic pin can move relative to the drive head through-hole, so the friction between the elastic pin and the wall of the drive head through-hole is mainly dynamic friction. Therefore, after one cycle, the elastic pin can move a certain distance out of the drive body through-hole. The drive body can repeatedly extend and retract over multiple cycles, allowing the elastic pin to be gradually moved out of the drive body through-hole.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the driving component is applied to an electronic device, the electronic device including a connector, and the driving component further includes:

[0016] The mounting ear is fixed at the resonant zero point of the drive body and is used to connect with the connecting platform.

[0017] At the zero point of resonance, the displacement of the driving body in the direction of the hole axis of the driving body can be regarded as zero, which is beneficial to improving the connection stability between the mounting ear and the connecting platform.

[0018] In conjunction with the first aspect, in some implementations of the first aspect, the mounting ear is an annular component that surrounds the outer periphery of the drive body.

[0019] The mounting ears are ring-shaped, which allows the drive assembly to be connected to the connector at any angle.

[0020] In conjunction with the first aspect, in some implementations of the first aspect, the driving body includes a first driving body end face, which is fixedly connected to the driving head. When the driving body is powered, the first driving body end face has a deformation amount in a direction perpendicular to the hole axis of the driving body through hole. Under the drive of the first driving body end face, the driving head has a deformation amount in the hole axis direction of the driving head through hole, and the elastic pin moves in the hole axis direction of the driving head through hole under the drive of the driving head.

[0021] After the drive body is powered, it can expand or contract radially in the drive body through hole, thereby causing the drive head to expand or contract radially in the drive head through hole. Since the volume of the drive head remains basically unchanged, the drive head can extend or contract axially in the drive body through hole, and thus the elastic pin can move in the axial direction of the drive body through hole.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, when the drive body is powered, the end face of the first drive body reciprocates in a direction perpendicular to the axis of the through hole of the drive body. When the duration of the first drive body end face being in the expanded state is less than the duration of the first drive body end face being in the contracted state, the elastic pin moves in the direction from the through hole of the drive body to the through hole of the drive head.

[0023] After the drive body is powered, it can switch between a slender state and a thick state. The time the drive body is in the slender state can be longer than the time it is in the thick state, and the time the drive head is in the slender state can also be longer than the time it is in the thick state. Therefore, the drive head extends slowly and retracts quickly. When the drive head extends slowly, due to the friction between the elastic pin and the wall of the drive head's through-hole, the elastic pin can move out of the drive head's through-hole under the drive head's influence. When the drive head retracts quickly, due to the inertia of the elastic pin continuing to move out of the drive body's through-hole, the elastic pin may not move in the direction of moving into the drive body's through-hole, or the displacement of the elastic pin into the drive body's through-hole is relatively small. Therefore, after one cycle, the elastic pin can move a certain distance out of the drive body's through-hole. The drive body can repeatedly extend and retract over multiple cycles, allowing the elastic pin to be gradually moved out of the drive body's through-hole.

[0024] In conjunction with the first aspect, in some implementations of the first aspect, the driving component is applied to an electronic device, the electronic device including a connector, and the driving component further includes:

[0025] Mounting ears are fixed to the side of the drive head near the drive body and are used to connect to the connecting platform.

[0026] The displacement of the side of the drive head closest to the drive body in the direction of the through hole of the drive body can be regarded as zero, which is beneficial to improving the connection stability between the mounting ear and the connecting platform.

[0027] In conjunction with the first aspect, in some implementations of the first aspect, the mounting ear is part of the driving head.

[0028] The drive head and mounting ear are molded as a single piece, which helps to reduce the process required to assemble the mounting ear.

[0029] In conjunction with the first aspect, in some implementations of the first aspect, the driving body includes a multilayer ceramic layer stacked radially along the through hole of the driving body, the through hole wall of the driving body is provided with a first port, and the side wall of the driving body is provided with a second port.

[0030] The driving component is applied to an electronic device, which includes a control module that supplies power to the driving body through the first port and the second port.

[0031] Radially stacked drive bodies can achieve radial polarization. By applying a voltage in the radial direction of the drive bodies, it is beneficial to deform the drive bodies according to the radial polarization mode.

[0032] In conjunction with the first aspect, in some implementations of the first aspect, the sidewall of the driving body is further provided with a third port, and the driving component further includes an electrical connector electrically connected between the first port and the third port.

[0033] The first port on the wall of the through hole of the drive body can be led out to the outside of the drive body through the electrical connector.

[0034] In one possible implementation, the electrical connector is sandwiched between the drive body and the drive head, which helps to reduce the interference of the electrical connector with the movement of the elastic pin.

[0035] In conjunction with the first aspect, in some implementations of the first aspect, the driving body includes a multilayer ceramic layer stacked along the axis of the through hole of the driving body;

[0036] The driving body includes a first driving body end face and a second driving body end face. The first driving body end face is located on the side of the driving body closer to the driving head, and the second driving body end face is located on the side of the driving body away from the driving head. The first driving body end face is provided with a fourth port, and the second driving body end face is provided with a fifth port.

[0037] The driving component is applied to an electronic device, which includes a control module that supplies power to the driving body through the fourth port and the fifth port.

[0038] Axially stacked drive bodies can achieve axial polarization. By applying a voltage along the axial direction of the drive bodies, it is beneficial to deform the drive bodies according to the axial polarization mode.

[0039] In conjunction with the first aspect, in some implementations of the first aspect, a drive head groove is provided on the side of the drive head near the drive body, and the end of the drive body near the drive head is fixed in the drive head groove.

[0040] By setting a groove in the drive head, the fixed area between the drive body and the drive head is increased, which helps to improve the connection stability between the drive body and the drive head.

[0041] In conjunction with the first aspect, in some implementations of the first aspect, the drive head includes a first drive head end face and a second drive head end face, the first drive head end face being located on the side of the drive head away from the drive body, and the second drive head end face being located on the side of the drive head closer to the drive body, wherein the outer diameter of the first drive head end face is smaller than the outer diameter of the second drive head end face.

[0042] The drive head can be fixedly connected to the drive body via its end face, and the relatively large area of ​​the drive head end face facilitates the deformation of the drive head following the drive body. The drive head end face is located on the side of the drive head furthest from the drive body, thus experiencing less influence from the drive body. Conversely, the relatively small area of ​​the drive head end face helps reduce the deformation resistance exerted by the drive head on the drive body.

[0043] In conjunction with the first aspect, in some implementations of the first aspect, the outer diameter of the drive head gradually decreases in the direction from the end face of the first drive head to the end face of the second drive head.

[0044] The regular variation in the outer diameter of the drive head helps to make the overall deformation of the drive head relatively uniform, reducing the possibility of abnormal deformation areas appearing in the drive head.

[0045] In conjunction with the first aspect, in some implementations of the first aspect, the resilient pin has a gap that is arranged parallel to the through hole of the drive body.

[0046] The flexible setting of the gap width of the elastic pin allows for flexible adjustment of the friction coefficient between the elastic pin and the through hole of the drive head.

[0047] In conjunction with the first aspect, in some implementations of the first aspect, the drive assembly further includes a counterweight fixed to the side of the drive body away from the drive head.

[0048] Counterweights can be used to provide counterweight to the drive body to reduce the amount of displacement of the drive body from the extension direction of the elastic pin.

[0049] In conjunction with the first aspect, in some implementations of the first aspect, a counterweight groove is provided on the side of the counterweight near the driving body, and the end of the driving body away from the driving head is fixed in the counterweight groove.

[0050] By setting a groove in the counterweight, the fixed area between the drive body and the counterweight is increased, which helps to improve the connection stability between the drive body and the counterweight.

[0051] In conjunction with the first aspect, in some implementations of the first aspect, the side of the counterweight near the driving body is provided with an elastic pin receiving cavity, the inner diameter of which is greater than or equal to the diameter of the through hole of the driving body.

[0052] The counterweight is equipped with a flexible pin receiving cavity, which can help extend the movable stroke of the flexible pin.

[0053] In conjunction with the first aspect, in some implementations of the first aspect, the diameter of the through hole of the driving body is larger than the diameter of the through hole of the driving head.

[0054] The diameter of the through hole in the drive body is larger than that in the drive head. This helps to reduce the possibility of contact between the elastic pin and the hole wall of the drive body through hole, and also helps to reduce the friction between the drive body through hole and the elastic pin, thus reducing the movement resistance of the elastic pin.

[0055] In conjunction with the first aspect, in some implementations of the first aspect, the material of the driving body includes at least one of the following: lead zirconate titanate PZT-4, PZT-5 and PZT-8.

[0056] The drive unit can be flexibly set with a variety of materials.

[0057] In a second aspect, an electronic device is provided, comprising: a drive component as described in any implementation of the first aspect above; a connecting platform on which the drive component is mounted; a movable part connected to the elastic pin; and a control module for supplying power to the drive body. Attached Figure Description

[0058] Figure 1 This is a schematic structural diagram of an electronic device provided in an embodiment of this application.

[0059] Figure 2 This is a schematic structural diagram of an electronic device provided in an embodiment of this application.

[0060] Figure 3 This is a schematic structural diagram of an electronic device provided in an embodiment of this application.

[0061] Figure 4 This is a schematic structural diagram of an electronic device provided in an embodiment of this application.

[0062] Figure 5 This is a schematic structural diagram of a camera module provided in an embodiment of this application.

[0063] Figure 6 This is a schematic structural diagram of a driving component provided in an embodiment of this application.

[0064] Figure 7 yes Figure 6 A cross-sectional view of the drive component shown.

[0065] Figure 8 This is a schematic diagram of the driving principle of a driving body provided in an embodiment of this application.

[0066] Figure 9 This is a schematic diagram of a driving circuit for a driving body provided in an embodiment of this application.

[0067] Figure 10 yes Figure 6 The diagram shows a schematic structural representation of the driving component during the driving process.

[0068] Figure 11 yes Figure 6 The diagram shows a cross-sectional view of the driving component during the driving process.

[0069] Figure 12 This is a schematic structural diagram of a resilient pin provided in an embodiment of this application.

[0070] Figure 13 This is a schematic structural diagram of another driving component provided in an embodiment of this application.

[0071] Figure 14 yes Figure 13 A cross-sectional view of the drive component shown.

[0072] Figure 15 yes Figure 6 or Figure 13 The diagram shows a resonant simulation of the driving component.

[0073] Figure 16 yes Figure 6 or Figure 13 The diagram shows the performance of the driving component.

[0074] Figure 17 This is a schematic structural diagram of another driving component provided in the embodiments of this application.

[0075] Figure 18 yes Figure 17 The diagram shows a cross-sectional view of the driving component during the driving process.

[0076] Figure 19 This is a schematic structural diagram of another driving component provided in the embodiments of this application.

[0077] Figure 20 yes Figure 19 A cross-sectional view of the drive component shown.

[0078] Figure 21 yes Figure 17 or Figure 19The diagram shows a resonant simulation of the driving component. Detailed Implementation

[0079] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0080] Figure 1 This is a schematic structural diagram of an electronic device 100 provided in an embodiment of this application. The electronic device 100 can be an electronic device with camera or photographing functions, such as a mobile phone, tablet computer, television (or smart screen), laptop, camcorder, video recorder, camera, etc. For ease of understanding, this embodiment of the application uses a mobile phone as an example for illustration.

[0081] Electronic device 100 may include a display screen 10 and a housing 20. The housing 20 may include a bezel 210 and a back cover 220. The bezel 210 may surround the outer periphery of the display screen 10, and the bezel 210 may also surround the outer periphery of the back cover 220. A certain gap may exist between the display screen 10 and the back cover 220. The display screen 10 may be arranged parallel to the back cover 220.

[0082] A front-facing camera module 110 can be installed on the display screen 10 of the electronic device 100. For example... Figure 1 As shown in the left figure, the front-facing camera module 110 can be mounted on the upper left of the display screen 10. The front-facing camera module 110 can be used for selfies, for example.

[0083] A rear camera module 120 can be mounted on the back cover 220 of the electronic device 100. For example... Figure 1 As shown in the right figure, the rear camera module 120 can be mounted on the upper middle part of the back cover 220. The rear camera module 120 can be used, for example, to capture the scene around the electronic device 100.

[0084] It should be understood that Figure 1 The installation positions of the front-facing camera module 110 and the rear-facing camera module 120 shown are merely illustrative, and this application does not limit the installation positions of the camera modules. In some other embodiments, the front-facing camera module 110 and the rear-facing camera module 120 may also be installed in other locations on the electronic device 100. For example, the front-facing camera module 110 may be installed in the upper center or upper right of the display screen 10. Similarly, the rear-facing camera module 120 may be installed in the upper left or upper right of the back cover 220.

[0085] It should be understood that Figure 1 The number of front-facing camera modules 110 and rear-facing camera modules 120 shown is merely illustrative, and this application does not limit the number of camera modules that can be installed. The electronic device 100 may include more or fewer camera modules.

[0086] exist Figure 2 In the illustrated embodiment, the rear camera module 120 can be a camera compact module (CCM) with a pop-up function (also known as a telescopic function, a lifting function, etc.). Figure 2 As shown in the left image, the rear camera module 120 can be partially or completely hidden inside the electronic device. For example... Figure 2 As shown in the right image, the rear camera module 120 can pop out of the electronic device.

[0087] In some other embodiments, the front-facing camera module 110 may also be a retractable camera module.

[0088] In this embodiment, the camera module has a pop-up function, which means that the camera module is movable relative to the electronic device 100 as a whole, so that at least part of the camera module can pop out from the electronic device 100 and can be hidden inside the electronic device 100. In this application, the pop-up function can also be referred to as a telescopic function, a lifting function, etc.

[0089] Figure 3 A schematic structural diagram of another electronic device 100 according to an embodiment of this application is shown. Figure 3 As shown, electronic device 100 may be, for example, a mobile phone. Figure 4 A schematic structural diagram of another electronic device 100 according to an embodiment of this application is shown. Figure 4 As shown, electronic device 100 may be, for example, a television (or a smart screen).

[0090] exist Figure 3 and Figure 4 In the illustrated embodiment, the electronic device 100 may include a frame 210 and a pop-up module 130. An opening 211 may be provided on the frame 210. The opening 211 may be located at any position on the frame 210. The pop-up module 130 may be accommodated within the opening 211. The pop-up module 130 may move relative to the frame 210 of the electronic device within the opening 211. Specifically, the pop-up module 130 may pop out from the electronic device 100 or may be hidden within the electronic device 100. Figure 3 The left image is a schematic diagram of the pop-up module 130 hidden inside the electronic device 100. Figure 3 The image on the right is a schematic diagram of the pop-up module 130 extending outside the electronic device. Figure 4 The dashed line indicates that the pop-up module 130 is hidden inside the electronic device 100. Figure 4 The solid line indicates that the pop-out module 130 is ejected to the outside of the electronic device. It should be understood that the specific number of pop-out modules 130 is not limited in the embodiments of this application.

[0091] exist Figure 3 and Figure 4 In the illustrated embodiment, the pop-out module 130 may include a recess 131. After the pop-out module 130 pops out from within the electronic device 100, the recess 131 may be exposed outside the electronic device. When hidden inside the electronic device 100, the recess 131 may be received inside the electronic device. The shape of the recess 131 is not limited in this embodiment. The recess 131 may be used to accommodate components of the electronic device 100. In one possible implementation, the recess 131 may be used to accommodate one or more of the following: a camera module, an earpiece, and a sensor assembly.

[0092] By driving the component, it is possible to Figure 1 and Figure 2 The rear camera module 120 shown can pop out of the electronic device, and can also retract into the electronic device. Through the driving component, it can... Figure 3 and Figure 4 The pop-up module 130 shown can pop out of the electronic device, or it can retract into the electronic device. In other embodiments, other types of displacement driving can be implemented through a driving component, such as focusing driving, image stabilization driving, etc.

[0093] Figure 5 A schematic diagram of a camera module 200 is shown. The camera module 200 can be... Figure 1 The front-facing camera module 110 or the rear-facing camera module 120 shown.

[0094] The camera module 200 may include a lens 230, a driving component 300, and an image sensor 240.

[0095] Lens 230 can be a fixed focal length lens 230 or a zoom lens 230. Lens 230 can also be a short focal length lens 230, a long focal length lens 230, a periscope lens 230, etc. Lens 230 may include a lens barrel 231 and one or more lens elements 232 disposed within the lens barrel 231. One end of the lens barrel 231 is assembled with the drive assembly 300, and the other end of the lens barrel 231 has a light entrance aperture for controlling the field of view of lens 230. Lens elements 232 can be plastic lenses or glass lenses. Lens elements 232 can be spherical lenses or aspherical lenses. The drive assembly 300 can be used for autofocus and / or optical image stabilization of lens 230.

[0096] The camera module 200 operates by having light reflected from the subject pass through one or more lenses 232 within the lens 230 and the drive assembly 300, projecting it onto the surface of the image sensor 240. To obtain a clear, distortion-free image, the lens imaging principle is utilized. The drive assembly 300 drives the lens barrel 231, moving the lenses 232 within it to appropriate positions. This allows light to be focused onto the image sensor 240, forming a clear optical image. The image sensor 240 then converts the optical image into an electrical signal, thereby obtaining an image signal.

[0097] The driving principle of the driving components mentioned above can be mechanical transmission principle, electromagnetic principle, piezoelectric principle, etc.

[0098] In one possible implementation, the drive components may include a stepper motor, a lead screw, and a slider. The stepper motor may engage with the lead screw, thereby driving the lead screw to rotate. The lead screw is threaded into the slider, so that the slider can move linearly under the rotational motion of the lead screw. The slider can be driven... Figure 1 and Figure 2 The rear camera module 120 shown is configured to enable a pop-up function for the rear camera module 120. Alternatively, a slider can be driven... Figure 3 and Figure 4 The pop-up module 130 shown is used to implement the pop-up function of the pop-up module 130. Alternatively, the slider can be driven. Figure 5 The lens barrel 231 and lens 232 shown are used to enable the focusing function of the camera module 200. The drive assembly can also be used to implement other types of displacement drive.

[0099] However, stepper motors occupy a relatively large space. The mechanical fit between the stepper motor, lead screw, and slider can also introduce relatively significant noise. To meet requirements such as smooth movement, the mechanical fit tolerances may be relatively large, causing the slider to fail to move along a preset straight line, i.e., it may deviate from the preset movement direction, thus affecting the normal operation of components on the camera module 120 or pop-up module 130. Therefore, when the drive stroke is relatively large, drive components based on mechanical transmission principles may be difficult to meet the usage requirements of the electronic device 100.

[0100] In another possible implementation, the driving component may include a magnet and a coil. The driving component could be, for example, a voice coil motor. The magnet may be fixed within the electronic device 100. When the coil is energized, it can generate an Ampere force and interact with the magnet, thereby allowing the coil to move relative to the magnet. The coil can drive... Figure 1 and Figure 2 The rear camera module 120 shown is used to implement the pop-up function of the rear camera module 120. Alternatively, a coil can drive it. Figure 3 and Figure 4 The pop-up module 130 shown is used to implement the pop-up function of the pop-up module 130. Alternatively, the coil can drive... Figure 5 The lens barrel 231 and lens 232 shown are used to enable the focusing function of the camera module 200. The drive assembly can also be used to implement other types of displacement drive.

[0101] However, with a relatively large drive stroke, multiple magnets are required, which occupy a relatively large space. Furthermore, adjacent magnets may interfere with each other, resulting in relatively poor coil movement accuracy. Therefore, with a relatively large drive stroke, drive components based on electromagnetic principles may be insufficient to meet the usage requirements of the electronic device 100.

[0102] In another possible implementation, the driving component may include a driving body. When energized, the driving body can undergo deformations such as elongation, contraction, bulging, or denting. The driving body can drive... Figure 1 and Figure 2 The rear camera module 120 shown is used to realize the pop-up function of the rear camera module 120. Alternatively, the driving body can drive... Figure 3 and Figure 4 The pop-up module 130 shown is used to implement the pop-up function of the pop-up module 130. Alternatively, the driving body can drive... Figure 5 The lens barrel 231 and lens 232 shown are used to achieve the focusing function of the camera module 200. The drive assembly can also be used to implement other types of displacement drive. How to make the drive assembly have a relatively large driveable stroke is a problem that needs to be solved.

[0103] Figure 6 This is a schematic structural diagram of a driving component 300 provided in an embodiment of this application. Along Figure 6 The AA section observation drive assembly 300 shown can be used to obtain... Figure 7 The cross-sectional view shown.

[0104] The drive assembly 300 may include a drive body 310, a drive head 320, and a resilient pin 330. The drive head 320 may be fixed to one end of the drive body 310. The drive head 320 and the drive body 310 may be fixed by one or more of the following methods: adhesive bonding, welding, snap-fitting, riveting, and threaded fastening. The drive body 310 may include a drive body through hole 313, and the drive head 320 may include a drive head through hole 323. The drive body through hole 313 and the drive head through hole 323 may communicate with each other. The drive body through hole 313 and the drive head through hole 323 may be arranged parallel to each other. The resilient pin 330 may be accommodated within the drive head through hole 323, and the outer periphery of the resilient pin 330 may abut against the hole wall of the drive head through hole 323. Thus, friction may exist between the resilient pin 330 and the hole wall of the drive head through hole 323. In some embodiments, the axis of the drive body through hole 313 may be arranged parallel to the axis of the drive head through hole 323. The bore axis of the drive body through hole 313 and / or the bore axis of the drive head through hole 323 can be parallel to the extension direction of the elastic pin 330. The extension direction of the elastic pin 330 can be as follows: Figure 6 and Figure 7 The dotted line in the text is shown.

[0105] The driving body 310 can deform in the axial direction of the driving body through hole 313. Therefore, under the action of the driving body 310, the driving head 320 can drive the elastic pin 330 to move. The elastic pin 330 can move within the driving head through hole 323 along the axial direction of the driving head through hole 323, or the elastic pin 330 can move within the driving head through hole 323 along its extension direction. The direction of movement of the elastic pin 330 can be the same as its extension direction.

[0106] In one possible scenario, the elastic pin 330 can also extend into the drive body through hole 313 through the drive head through hole 323. The elastic pin 330 can move within the drive body through hole 313 along its extending direction. The diameter of the drive body through hole 313 can be larger than the diameter of the drive head through hole 323. Therefore, there may be no friction between the elastic pin 330 and the inner wall of the drive body through hole 313, or the friction between the elastic pin 330 and the inner wall of the drive body through hole 313 may be less than the friction between the elastic pin 330 and the inner wall of the drive head through hole 323. In one embodiment, there may be a gap between the elastic pin 330 and the hole wall of the drive body through hole 313.

[0107] In some embodiments provided in this application, the drive assembly 300 may further include a counterweight 350. The counterweight 350 may be fixed to the side of the drive body 310 away from the drive body 310. The counterweight 350 may be used to provide counterweight to the drive body 310 to reduce the amount of displacement of the drive body 310 from the extension direction of the elastic pin 330. In some embodiments, the material of the counterweight 350 may be a metal material such as an iron alloy (e.g., stainless steel) or a copper alloy. In one possible case, the weight of the counterweight 350 may be greater than the weight of the drive head 320. The density of the counterweight 350 may be greater than the density of the drive head 320.

[0108] In one possible case, such as Figure 7 As shown, the counterweight 350 may have a resilient pin receiving cavity 352. The resilient pin receiving cavity 352 may be a groove or a through hole. The inner diameter of the resilient pin receiving cavity 352 may be larger than the diameter of the drive body through hole 313. In the scenario where the resilient pin 330 moves along the direction from the drive head through hole 323 to the drive body through hole 313, when the resilient pin 330 moves to the counterweight 350, the resilient pin 330 may extend into the resilient pin receiving cavity 352 of the counterweight 350 and continue to move along the direction from the drive head through hole 323 to the drive body through hole 313. In one embodiment, the sum of the distance between the drive head end face 322 of the drive head 320 near the drive body 310 and the counterweight end face 351 of the counterweight 350 near the drive body 310, and the dimension of the resilient pin receiving cavity 352 in the extension direction of the resilient pin 330, may be equal to or approximately equal to the movable stroke of the resilient pin 330. The counterweight 350 is provided with a resilient pin receiving cavity 352, which can help extend the movable stroke of the resilient pin 330.

[0109] In another possible scenario, the counterweight end face 351 of the counterweight 350 near the drive body 310 can be the limiting surface of the elastic pin 330. That is, the counterweight 350 can block the drive body through hole 313 on one side of the drive body 310. In the scenario where the elastic pin 330 moves along the direction from the drive head through hole 323 to the drive body through hole 313, after the elastic pin 330 moves to the counterweight 350 and contacts the counterweight end face 351 of the counterweight 350, the elastic pin 330 cannot continue to move along the direction from the drive head through hole 323 to the drive body through hole 313. In one embodiment, the distance between the drive head end face 322 of the drive head 320 near the drive body 310 and the counterweight end face 3511 of the counterweight 350 near the drive body 310 can be equal to or approximately equal to the movable stroke of the elastic pin 330.

[0110] In some embodiments provided in this application, the driving body 310 can be a piezoelectric ceramic, such as lead zirconate titanate (Pb(Zr1-xTiO3), PZT). The driving body 310 can be a hard piezoelectric ceramic or a soft piezoelectric ceramic. In one embodiment, the hard piezoelectric ceramic can be PZT-4 or PZT-8. PZT-4 can be a transmitter or a transmitter / receiver. PZT-8 can be a transmitter / receiver and can be applied to high-power scenarios. In another embodiment, the soft piezoelectric ceramic can be PZT-5. PZT-5 can be used for detection driving scenarios.

[0111] The driving body 310 can be a single-layer ceramic structure or a multi-layer ceramic structure. A multi-layer ceramic structure driving body 310 can be formed by stacking multiple ceramic layers. In one possible scenario, the driving body 310 is a single-layer ceramic structure, and the driving body 310 can be made of hard piezoelectric ceramic. In another possible scenario, the driving body 310 is a multi-layer ceramic structure, and the driving body 310 can be made of soft piezoelectric ceramic.

[0112] Figure 8 (a) and (b) show two stacking structures of the multilayer ceramic drive body 310 and the corresponding two deformation principles. The deformation principle of the single-layer ceramic drive body 310 can be referred to the deformation principle of the multilayer ceramic drive body 310.

[0113] Figure 8 The polarization mode of the drive body 310 shown in (a) can be radial polarization. Figure 8 In (a), the dashed arrow indicates the radial direction of the drive body 310. The radial direction of the drive body 310 may intersect the axial direction of the drive body 310, and may be perpendicular to the axial direction of the drive body 310. The radial direction of the drive body 310 may be perpendicular to the axial direction of the drive body through hole 313. The axial direction of the drive body 310 may be parallel to the axial direction of the drive body through hole 313. The radial direction of the drive body 310 may be the radial direction of the drive body through hole 313.

[0114] The drive body 310 may include a plurality of tubular ceramics 401. The plurality of tubular ceramics 401 may be stacked radially along the drive body 310. The plurality of tubular ceramics 401 may include tubular ceramics 401a and tubular ceramics 401b. Tubular ceramics 401a and tubular ceramics 401b may be two adjacent tubular ceramics 401. Tubular ceramic 401a may be housed within tubular ceramic 401b. The outer wall of tubular ceramic 401a may be attached to the inner wall of tubular ceramic 401b. The outer diameter of tubular ceramic 401a may be the same as or substantially the same as the inner diameter of tubular ceramic 401b. In some embodiments, the drive body 310 may be a circular tube or an elliptical tube.

[0115] When the drive body 310 is energized, the multiple tubular ceramics 401 can deform radially along the drive body 310. In one scenario, the multiple tubular ceramics 401 can bulge outwards, i.e., they can become relatively thicker; in another scenario, they can concave inwards, i.e., they can become relatively thinner. Since the overall volume of the drive body 310 remains essentially constant, when the multiple tubular ceramics 401 bulge outwards, the axial dimension of the drive body 310 can be shortened; when the multiple tubular ceramics 401 concave inwards, the axial dimension of the drive body 310 can be lengthened. This allows the drive body 310 to have a deformation along the axis of the through hole 313.

[0116] Figure 8 The polarization mode of the drive body 310 shown in (b) can be axial polarization. Figure 8 In (b), the dashed arrow indicates the axial direction of the drive body 310. The axial direction of the drive body 310 can be parallel to the extension direction of the drive body 310, and the drive body 310 can be symmetrical with respect to its axial direction. The axial direction of the drive body 310 can be parallel to the hole axis direction of the drive body through hole 313.

[0117] The drive body 310 may include multiple layers of annular ceramics 402. The multiple layers of annular ceramics 402 may be stacked along the axial direction of the drive body 310. Multiple annular ceramics 402 may include annular ceramics 402a and annular ceramics 402b. Annular ceramics 402a and annular ceramics 402b may be arranged along the axial direction of the drive body 310. Annular ceramics 402a and annular ceramics 402b may be two adjacent annular ceramics 402. Annular ceramics 402a may be attached to annular ceramics 402b. Annular ceramics 402a and annular ceramics 402b may be arranged opposite to each other.

[0118] In one possible scenario, the outer periphery of the annular ceramic 402a and the outer periphery of the annular ceramic 402b may be the same or substantially the same in shape and size, and the outer periphery of the annular ceramic 402a and the outer periphery of the annular ceramic 402b may be aligned. The inner periphery of the annular ceramic 402a and the inner periphery of the annular ceramic 402b may be the same or substantially the same in shape and size, and the inner periphery of the annular ceramic 402a and the inner periphery of the annular ceramic 402b may be aligned. In one embodiment, the driving body 310 may be a square tube, a round tube, or an elliptical tube. The outer periphery of the multi-layer annular ceramics 402 may be the same or substantially the same, and the outer periphery of the multi-layer annular ceramics 402 may be aligned with each other. The inner periphery of the multi-layer annular ceramics 402 may be the same or substantially the same, and the inner periphery of the multi-layer annular ceramics 402 may be aligned with each other.

[0119] When the drive body 310 is energized, the multilayer annular ceramics 402 can deform along the axial direction of the drive body 310. In one scenario, the multiple annular ceramics 402 can extend upwards along the axial direction of the drive body 310; in another scenario, the multiple annular ceramics 402 can shorten along the axial direction of the drive body 310. This allows the drive body 310 to have a deformation amount in the direction of the hole axis of the drive body through hole 313. Since the overall volume of the drive body 310 remains basically unchanged, when the multiple annular ceramics 402 extend upwards along the axial direction of the drive body 310, the drive body 310 can be recessed inwards radially, making the drive body 310 relatively slender; when the multiple annular ceramics 402 shorten in the axial direction of the drive body 310, the drive body 310 can be expanded outwards radially.

[0120] Combination Figure 8 In the embodiments shown in (a) and (b), since the driving body 310 and the driving head 320 are fixedly connected, when the driving body 310 deforms, it can also drive the driving head 320 to deform. That is, if the driving head 320 is difficult to deform, it may affect the normal deformation of the driving body 310, causing the driving body 310 to experience relatively large resistance during deformation. Combined with... Figure 6 and Figure 7 In the illustrated embodiment, the outer diameter of the end of the drive head 320 furthest from the drive body 310 may be smaller than the outer diameter of the end of the drive head 320 closest to the drive body 310. The drive head 320 may include a drive head end face 321 and a drive head end face 322. The drive head end face 321 may be located on the side of the drive head 320 furthest from the drive body 310, and the drive head end face 322 may be located on the side of the drive head 320 closest to the drive body 310. The outer diameter of the drive head end face 321 may be smaller than the outer diameter of the drive head end face 322. The outer diameter of the drive head 320 may gradually decrease in the direction from the drive head end face 321 to the drive head end face 322. In one possible case, the drive head end face 321 and the drive head end face 322 may be perpendicular to the axis of the drive body through hole 313.

[0121] The drive head 320 can be fixedly connected to the drive body 310 via the drive head end face 322. The drive head end face 322 has a relatively large area, which facilitates the deformation of the drive head 320 following the deformation of the drive body 310. The drive head end face 321 is located on the side of the drive head 320 furthest from the drive body 310, and is less affected by the drive body 310. The drive head end face 321 has a relatively small area, which helps reduce the deformation resistance of the drive head 320 on the drive body 310.

[0122] Figure 9 (a) shows a schematic structural diagram of the drive circuit of the radially polarized drive body 310. Figure 9 (b) shows a schematic structural diagram of the drive circuit of the axially polarized drive body 310.

[0123] Combination Figure 7 In the illustrated embodiment, the drive body 310 may include a drive body end face 311, a drive body end face 312, and a drive body sidewall 314. The drive body end face 311 may be located on the side of the drive body 310 closest to the drive head 320, and the drive body 310 can be fixedly connected to the drive head via the drive body end face 311. The drive body end face 312 may be located on the side of the drive body 310 furthest from the drive head 320. The drive body sidewall 314 may be connected between the drive body end face 311 and the drive body end face 312. The drive body sidewall 314 may be located on the outer side of the drive body 310. A drive body through hole 313 may be connected between the drive body end face 311 and the drive body end face 312. The drive body through hole 313 may be located on the inner side of the drive body 310.

[0124] like Figure 9 As shown in (a), to allow the drive body 310 to deform radially, a port 361 can be provided on the wall of the through hole 313 of the drive body, and a port 362 can be provided on the side wall 314 of the drive body. In some embodiments, ports 361 and 362 can be arranged opposite to each other. In one possible case, the projection of the line connecting ports 361 and 362 onto the drive body end face 311 of the drive body 310 can be the radial direction of the drive body end face 311. In one embodiment, the line connecting ports 361 and 362 can be arranged parallel to the radial direction of the drive body 310.

[0125] In some embodiments provided in this application, the drive assembly 300 may further include an electrical connector 371, and the drive body sidewall 314 may also be provided with a port 363. The electrical connector 371 may be electrically connected between the port 361 and the port 363. In some embodiments, the projection of the electrical connector 371 on the drive body end face 311 may be arranged parallel to the radial direction of the drive body 310. Through the electrical connector 371, the port 361 on the hole wall of the drive body through hole 313 can be led out to the outside of the drive body 310.

[0126] In some embodiments, combined with Figure 7 and Figure 9In (a), the electrical connector 371 may be sandwiched between the drive body 310 and the drive head 320. The electrical connector 371 may include one or more of the following: leads, conductive plating, and conductive colloid. In one embodiment, the electrical connector 371 may include a conductive plating that is attached to the wall of the drive body through-hole 313, the drive body end face 311, and the drive body sidewall 314. In one possible scenario, an insulating component may be provided between ports 362 and 363 to reduce the possibility of a short circuit between ports 362 and 363.

[0127] In one possible implementation, combining Figures 1 to 5 The electronic device 100 may have a control module for the drive component 300, and the control module may be disposed on the circuit board of the electronic device 100. The circuit board may be a rigid circuit board or a flexible circuit board. By providing conductive elements between the circuit board and port 361 (or port 363), and between the circuit board and port 362, the control module can control the drive component 300 (e.g., power supply, power cut-off, etc.).

[0128] like Figure 9 As shown in (b), in order to deform the drive body 310 along its axial direction, a port 364 may be provided on the end face 311 of the drive body, and a port 365 may be provided on the end face 312 of the drive body. In some embodiments, ports 364 and 365 may be arranged opposite to each other. In one embodiment, the line connecting ports 364 and 365 is parallel to the axial direction of the drive body 310.

[0129] In some embodiments provided in this application, the drive assembly 300 may further include an electrical connector 372, and the drive body sidewall 314 may also be provided with a port 366. The electrical connector 372 may be electrically connected between the port 364 and the port 366. In some embodiments, the projection of the electrical connector 372 on the drive body end face 311 may be arranged parallel to the radial direction of the drive body 310. Through the electrical connector 372, the port 364 on the drive body end face 311 can be led out to the outside of the drive body 310.

[0130] In some embodiments, combined with Figure 7 and Figure 9 In (b), a portion of the electrical connector 372 may be sandwiched between the drive body 310 and the drive head 320. The electrical connector 372 may include one or more of the following: leads, conductive plating, and conductive colloid. In one embodiment, the conductive plating of the electrical connector 372 may be attached to part or all of the drive body end face 311.

[0131] In some embodiments provided in this application, the drive assembly 300 may further include an electrical connector 373, and the drive body sidewall 314 may also be provided with a port 367. The electrical connector 373 may be electrically connected between the port 365 and the port 367. In some embodiments, the projection of the electrical connector 373 on the drive body end face 311 may be arranged parallel to the radial direction of the drive body 310. Through the electrical connector 373, the port 365 on the drive body end face 312 can be led out to the outside of the drive body 310.

[0132] In some embodiments, combined with Figure 7 and Figure 9 In (b), a portion of the electrical connector 373 may be sandwiched between the drive body 310 and the counterweight 350. The electrical connector 373 may include one or more of the following: leads, conductive plating, and conductive colloid. In one embodiment, the conductive plating of the electrical connector 373 may be attached to part or all of the drive body end face 312.

[0133] In some embodiments, ports 366 and 367 may be arranged opposite to each other. In one embodiment, the connection between ports 366 and 367 may be parallel to the axial direction of the drive body 310. In one possible scenario, an insulating component may be provided between ports 366 and 367 to reduce the possibility of short circuits between them.

[0134] In one possible implementation, combining Figures 1 to 5 The electronic device 100 may have a control module for the drive component 300, and the control module may be disposed on the circuit board of the electronic device 100. The circuit board may be a rigid circuit board or a flexible circuit board. By providing conductive elements between the circuit board and port 364 (or port 366), and between the circuit board and port 365 (or port 367), the control module can control the drive component 300.

[0135] The control module supplies AC power to the drive body 310, enabling it to periodically switch between an extended and retracted state. Therefore, the drive body end face 311 of the drive body 310, near the drive head 320, can reciprocate along the axis of the drive body through hole 313. Since the drive body 310 is fixedly connected to the drive head 320 via the drive body end face 311, the drive head 320 can have a displacement along the axis of the drive body through hole 313. Under the action of the drive body 310, the elastic pin 330 can be within the drive head through hole 323 and has a displacement along its extension direction. In some embodiments, the drive head 320 can be made of a metal such as aluminum alloy, magnesium alloy, or titanium alloy.

[0136] When the elastic pin 330 moves toward the drive head 320 and away from the drive body 310, the elastic pin 330 can gradually move out of the drive body through hole 313. During the process of the elastic pin 330 moving out of the drive body through hole 313, the time that the drive body 310 is in the extended state can be longer than the time that the drive body 310 is in the shortened state, that is, the time that the drive body 310 deforms toward the drive head 320 can be longer than the time that the drive body 310 deforms away from the drive head 320. In other words, the extension speed of the drive body 310 is relatively slow, and the contraction speed of the drive body 310 is relatively fast. The time that the drive body end face 311 of the drive body 310 moves toward the drive head 320 is longer than the time that moves away from the drive head 320.

[0137] When the drive body 310 is not in operation, there can be static friction between the elastic pin 330 and the drive head through hole 323. This static friction can keep the elastic pin 330 relatively stationary within the drive head through hole 323. This is beneficial for suspending the elastic pin 330.

[0138] When the drive body 310 slowly extends, the friction between the elastic pin 330 and the wall of the drive head through hole 323 is mainly static friction. The elastic pin 330 can move out of the drive body through hole 313 under the drive of the drive body 310. Assume the displacement of the elastic pin 330 out of the drive body through hole 313 is 1.

[0139] When the drive body 310 retracts rapidly, due to the inertia of the elastic pin 330 in continuing to move out of the drive body through hole 313, the elastic pin 330 may not move in the direction of moving into the drive body through hole 313, or the displacement of the elastic pin 330 into the drive body through hole 313 may be relatively small. The elastic pin 330 can move relative to the drive head through hole 330; therefore, the friction between the elastic pin 330 and the hole wall of the drive head through hole 323 is mainly dynamic friction. The dynamic friction between the elastic pin 330 and the hole wall of the drive head through hole 323 can be less than the static friction between the elastic pin 330 and the hole wall of the drive head through hole 323.

[0140] Assume the displacement of the elastic pin 330 into the drive body through hole 313 is displacement 2. Displacement 2 can be negative (i.e., the elastic pin 330 continues to move in the direction of moving out of the drive body through hole 313), or displacement 2 can be positive and less than the aforementioned displacement 1. Since the elongation and contraction of the drive body 310 are the same or substantially the same within one cycle, the elastic pin 330 can move out of the drive body through hole 313 a certain distance after one cycle. The drive body 310 can repeatedly extend and retract within multiple cycles, allowing the elastic pin 330 to be gradually moved out of the drive body through hole 313.

[0141] like Figure 10 and Figure 11 As shown, the elastic pin 330 can be fixedly connected to the movable part 381 within the electronic device 100. The fixed connection direction between the elastic pin 330 and the movable part 381 can be one or more of the following: adhesive bonding, welding, snap-fitting, riveting, and threaded fastening. During the process of the elastic pin 330 being gradually moved out of the drive body through hole 313, the movable part 381 can gradually move away from the drive body 310 along the extension direction of the elastic pin 330.

[0142] By limiting the elastic pin 330, the possibility of the elastic pin 330 completely moving out of the drive head through hole 323 can be reduced. In one possible scenario, when the elastic pin 330 moves to its farthest distance along the direction of moving out of the drive body through hole 313, the end of the elastic pin 330 closest to the drive body 310 can be located inside the drive body through hole 313, or as... Figure 11 As shown in (b), the end of the elastic pin 330 near the drive body 310 can be flush with the opening of the drive head through hole 323 near the drive body 310. That is, the contact area between the elastic pin 330 and the hole wall of the drive head through hole 323 can be roughly consistent. This helps to keep the friction between the elastic pin 330 and the drive head through hole 323 relatively stable.

[0143] In the axial direction of the through hole 313 of the drive body, the ratio of the size of the drive head 320 to the size of the drive body 310 can be relatively reasonable.

[0144] Assuming the total dimensions of the drive head 320 and drive body 310 in the axial direction of the drive body through hole 313 are fixed, extending the dimension of the drive body 310 in the axial direction of the drive body through hole 313 will improve the movable stroke of the elastic pin 330. Correspondingly, the dimension of the drive head 320 in the axial direction of the drive body through hole 313 can be shortened, potentially reducing the coefficient of friction between the elastic pin 330 and the drive head 320. A relatively small coefficient of friction between the elastic pin 330 and the drive head 320 will help reduce the moving resistance of the elastic pin 330.

[0145] Assuming the total dimensions of the drive head 320 and drive body 310 in the axial direction of the drive body through hole 313 are fixed, extending the dimension of the drive head 320 in the axial direction of the drive body through hole 313 will help increase the coefficient of friction between the elastic pin 330 and the drive head 320, which will help the elastic pin 330 to carry the relatively heavy movable part 381 and help achieve stable hovering of the movable part 381. Correspondingly, the dimension of the drive body 310 in the axial direction of the drive body through hole 313 can be shortened, which may reduce the movable stroke of the elastic pin 330.

[0146] The principle of the elastic pin 330 moving into the through hole 313 of the drive body can be referred to the principle of the elastic pin 330 moving out of the through hole 313 of the drive body.

[0147] In one possible scenario, at the same time, the displacement directions of the drive body end face 311 and drive body end face 312 of the drive body 310 are opposite in the direction of the hole axis of the drive body through hole 313. For example, at the same time, the drive body end face 311 of the drive body 310 moves towards the drive head 320, while the drive body end face 312 of the drive body 310 moves away from the drive head 320. That is, the drive body 310 can be in an extended state. Alternatively, at the same time, the drive body end face 311 moves away from the drive head 320, while the drive body end face 312 moves towards the drive head 320. That is, the drive body 310 can be in a shortened state. The drive body 310 can periodically switch between the extended and shortened states.

[0148] Since the displacement directions of the drive body end face 311 and the drive body end face 312 of the drive body 310 are opposite at the same time, the drive body 310 can have a resonant zero point. At the resonant zero point, the displacement of the drive body 310 in the axial direction of the drive body 310 (i.e., the direction of the hole axis of the drive body through hole 313) can be considered zero. The position on the drive body 310 near the resonant zero point can be connected to a component within the electronic device 100. For example... Figure 10 and Figure 11 As shown, the electronic device 100 may include a connecting platform 382, ​​which may be positioned opposite to and connected to a position on the drive body 310 near the resonant zero point. Thus, the drive component 300 can be mounted on the connecting platform 382.

[0149] In one possible scenario, the drive body 310 and the connecting platform 382 can be connected by one or more of the following methods: adhesive bonding, welding, snap-fitting, riveting, and threaded fastening. In another possible scenario, the drive body 310 and the connecting platform 382 can be connected by an elastic connector, such as foam or silicone. Since the drive body 310 may experience minor reciprocating vibrations along the axis of the drive body through hole 313 during operation, the elastic connector can absorb these minor vibrations, thus improving the connection stability between the drive body 310 and the connecting platform 382.

[0150] In some embodiments, a mounting ear 340 may be provided on the drive body 310 at a position near the resonant zero point, and the drive body 310 may be connected to the connection platform 382 in the electronic device 100 via the mounting ear 340. Figure 6 , Figure 10 and Figure 11 In the illustrated embodiment, the mounting ear 340 can be a ring structure, and the mounting ear 340 can be fixed around the outer periphery of the drive body 310. In one possible case, the ring structure mounting ear 340 can be vertically arranged relative to the elastic pin 330 or the drive body 310. In one embodiment, the mounting ear 340 can be made of a metal material such as aluminum alloy, magnesium alloy, titanium alloy, iron alloy, copper alloy, silver alloy, or gold alloy.

[0151] In some embodiments provided in this application, such as Figure 12 As shown, the elastic pin 330 can be obtained by bending a sheet or plate-shaped raw material. The bent elastic pin 330 can be a tubular structure with a slit 331. In one possible case, the slit 331 of the elastic pin 330 can be arranged parallel to the extension direction of the elastic pin 330. Figure 12 As shown in the left figure, the height h1 of the original material of the elastic pin 330 (the height direction can be parallel to the extension direction of the elastic pin 330) can be the same as or substantially the same as the height h2 of the bent elastic pin 330. The thickness t1 of the original material of the elastic pin 330 (the thickness direction can be the minimum dimension direction) can be the same as or substantially the same as the thickness t2 of the bent elastic pin 330. The width d of the original material of the elastic pin 330 (the dimension in the width direction can be greater than the dimension in the thickness direction) can be the same as the outer diameter of the bent elastic pin 330. It is related to the width s of the gap 331. In one embodiment,

[0152] When the elastic pin 330 is not accommodated in the drive head through hole 323 of the drive head 320, the outer diameter of the elastic pin 330 is... The width s of the slit 331 of the elastic pin 330 can be relatively large. When the elastic pin 330 is housed in the drive head through hole 323 of the drive body 310, the elastic pin 330 is compressed by the hole wall of the drive head through hole 323, causing the outer diameter of the elastic pin 330 to... The size of the gap 331 of the elastic pin 330 can be reduced, and the width s of the gap 331 of the elastic pin 330 can be reduced. Thus, the outer periphery of the elastic pin 330 can press against the wall of the drive head through hole 323, so that there can be friction between the elastic pin 330 and the drive head through hole 323.

[0153] Combination Figure 6 and Figure 12 The height h1 or h2 of the elastic pin 330 can be greater than the dimension of the drive body 310 in the extending direction of the elastic pin 330. In one embodiment, the height h1 or h2 of the elastic pin 330 can be greater than the total dimension of the drive body 310 and the drive head 320 in the extending direction of the elastic pin 330. A relatively large height h1 or h2 of the elastic pin 330 is advantageous for the elastic pin 330 to have a relatively large movable stroke.

[0154] With the diameter of the drive head through hole 323 relatively fixed, if the width d of the raw material of the elastic pin 330 is relatively large, then the reduction in the width s of the gap 331 of the elastic pin 330 before and after it is housed in the drive head through hole 323 will be relatively large, resulting in relatively large elastic deformation of the elastic pin 330. Therefore, the compressive force between the elastic pin 330 and the hole wall of the drive head through hole 323 can be relatively large, which is beneficial to improving the coefficient of friction between the elastic pin 330 and the drive head through hole 323. In addition, if the thickness t1 or t2 of the elastic pin 330 is relatively thick, then the resistance of the elastic pin 330 to elastic deformation will be relatively large, which is also beneficial to improving the coefficient of friction between the elastic pin 330 and the drive head through hole 323.

[0155] Figure 13 A schematic structural diagram of another driving component 300 provided in an embodiment of this application is shown. Figure 13 Image (a) shows the drive assembly 300 when the resilient pin 330 is not moved. Figure 13 (b) shows the drive assembly 300 after the elastic pin 330 has been moved.

[0156] and Figure 6 The embodiments shown are similar. Figure 13 The drive assembly 300 shown includes a drive body 310, a drive head 320, a spring pin 330, a counterweight 350, and a mounting ear 340. Among these, Figure 13 The drive head 320 shown is Figure 6 The structure of the drive head 320 shown is different; Figure 13 The counterweight 350 shown is Figure 6 The counterweight 350 shown has a different structure. Along... Figure 13 The BB section observation drive assembly 300 shown in (a) can be obtained Figure 14 The cross-sectional view shown.

[0157] like Figure 14 As shown, the side of the drive head 320 facing the drive body 310 may have a drive head groove 324. The recess direction of the drive head groove 324 may be parallel to the axial direction of the drive body through hole 313. The inner diameter of the drive head groove 324 may match the outer diameter of the drive body 310. The end of the drive body 310 near the drive head 320 may be accommodated in the drive head groove 324. The drive body end face 311 of the drive body 310 may be fixed to the groove bottom 3242 of the drive head groove 324, and the drive body sidewall 314 of the drive body 310 may be fixed to the groove wall 3241 of the drive head groove 324. This increases the fixing area between the drive body 310 and the drive head 320, and improves the connection stability between the drive body 310 and the drive head 320.

[0158] In the axial direction of the through hole 313 of the drive body, the ratio of the depth of the drive head groove 324 to the size of the drive head 320 can be relatively appropriate.

[0159] Assuming the dimension of the drive head 320 in the axial direction of the drive body through hole 313 is fixed, increasing the depth of the drive head groove 324 is beneficial for the fixed area between the drive body 310 and the drive head 320, thus improving the connection stability between them. Correspondingly, the dimension of the drive head through hole 323 in the axial direction of the drive body through hole 313 can be shortened, potentially reducing the coefficient of friction between the elastic pin 330 and the drive head 320. A relatively small coefficient of friction between the elastic pin 330 and the drive head 320 helps reduce the movement resistance of the elastic pin 330.

[0160] Assuming the size of the drive head 320 in the axial direction of the drive body through hole 313 is fixed, reducing the depth of the drive head groove 324 will help increase the size of the drive head through hole 323 in the axial direction of the drive body through hole 313. This will help increase the coefficient of friction between the elastic pin 330 and the drive head 320, and will help the elastic pin 330 to support the relatively heavy movable part 381, thus helping to achieve stable hovering of the movable part 381. Correspondingly, the fixed area between the drive body 310 and the drive head 320 will be reduced, which may reduce the connection stability between the drive body 310 and the drive head 320.

[0161] like Figure 14 As shown, the side of the counterweight 350 facing the drive body 310 may have a counterweight groove 353. The recess direction of the counterweight groove 353 may be parallel to the axial direction of the through hole 313 of the drive body. The inner diameter of the counterweight groove 353 may match the outer diameter of the drive body 310. The end of the drive body 310 near the counterweight 350 may be accommodated in the counterweight groove 353. The drive body end face 312 of the drive body 310 may be fixed to the bottom 3532 of the counterweight groove 353, and the drive body sidewall 314 of the drive body 310 may be fixed to the groove wall 3531 of the counterweight groove 353. This increases the fixing area between the drive body 310 and the counterweight 350, and improves the connection stability between the drive body 310 and the counterweight 350.

[0162] Figure 15 It shows Figure 6 or Figure 13 The modal simulation diagram of the drive component 300 in the shortened state is shown (the elastic pin 330 is not shown in the simulation diagram). Figure 6 or Figure 13The drive assembly 300 shown can have a relatively large amount of contraction and elongation, which is beneficial for enabling the elastic pin 330 to move relatively quickly.

[0163] Figure 16 It shows Figure 6 or Figure 13 The modal simulation diagram of the drive component 300 is shown. Figure 16 As shown, at a resonant frequency of approximately 225 kHz, the driving body 310 can have an amplitude of approximately 4.5 μm. In the range of 218–232 kHz, the amplitude of the driving body 310 can be greater than 0.5 μm. Outside the 218–232 kHz range, the amplitude of the driving body 310 is relatively small or even negligible. In one possible implementation, the amplitude of the driving body 310 can be controlled by controlling the resonant frequency, thereby controlling the moving speed of the elastic pin 330.

[0164] Table 1 shows Figure 6 or Figure 13 The resonant performance of the drive assembly 300 is shown. By designing the shape and size of each component in the drive assembly 300, it is advantageous to make the amplitude of the drive assembly 300 relatively large, and the position of the amplitude can be relatively close to the drive head 320; in addition, it is also advantageous to make the drive assembly 300 meet the pure modal requirements, that is, to reduce the possibility of the drive assembly 300 exhibiting heterodynes. The embodiments provided in this application are not limited to the specific dimensions in Table 1.

[0165] Table 1 Figure 6 or Figure 13 The resonant performance of the driving component 300 shown

[0166]

[0167] Figure 17 This is a schematic structural diagram of another driving component 300 provided in the embodiments of this application.

[0168] and Figure 6 or Figure 13 The embodiments shown are similar. Figure 17 The drive assembly 300 shown may include a drive body 310, a drive head 320, a spring pin 330, and a counterweight 350. Figure 17 In the embodiment shown, the structure of the drive body 310 can be referred to Figure 8 The example shown. In Figure 17 In the illustrated embodiment, the driving circuit of the driving body 310 can be referred to Figure 9 The example shown.

[0169] However, with Figure 6 or Figure 13 Compared to the drive head 320 shown, Figure 17 The drive head 320 shown has a relatively large dimension in the axial direction of the through hole 313 in the drive body. Figure 6 or Figure 13 In the illustrated embodiment, the resonant zero point of the driving component 300 can be located at the driving body 310; Figure 17 In the illustrated embodiment, the resonant zero point of the drive assembly 300 is located at the drive head 320, or at the connection between the drive head 320 and the drive body 310. Figure 17 In the embodiment shown, the displacement of the end of the drive head 320 near the drive body 310, or at the connection between the drive head 320 and the drive body 310, in the direction of the hole axis of the drive body through hole 313 can be considered zero.

[0170] In one possible case, such as Figure 17 As shown, a mounting ear 340 may be provided at one end of the drive head 320 near the drive body 310. In one embodiment, the mounting ear 340 may be fixedly connected to the end of the drive head 320 near the drive body 310. In another embodiment, the mounting ear 340 may be part of the drive head 320. This helps to reduce the steps required to fix the mounting ear 340.

[0171] In another possible scenario, a mounting ear 340 may be provided at the connection between the drive head 320 and the drive body 310.

[0172] along Figure 17 The CC section shown shows the drive assembly 300, from which the following can be obtained: Figure 18 The cross-sectional view shown. (Compared to...) Figure 10 and Figure 11 Similarly, in Figure 18 In the embodiment shown, the electronic device 100 may include a connecting platform 382, ​​which may be connected to a mounting ear 340; and a resilient pin 330 may be fixedly connected to a movable part 381 within the electronic device 100.

[0173] As described above, the control module of the electronic device 100 can conduct alternating current to the drive body 310 to power it, thereby allowing the drive body 310 to switch between an extended state and a shortened state. Since the volume of the drive body 310 remains essentially constant, it can also switch between a slender state and a bulky state. When the drive body 310 is in the extended state, it is also in the slender state; when the drive body 310 is in the shortened state, it is also in the bulky state.

[0174] Since the displacement of the drive body end face 311 of the drive body 310 near the drive head 320 in the axial direction of the drive body through hole 313 can be relatively small, the displacement of the drive body end face 311 of the drive body 310 near the drive head 320 in the radial direction of the drive body 310 (which is perpendicular to the axial direction of the drive body through hole 313) is relatively large. That is, the drive body end face 311 of the drive body 310 near the drive head 320 expands or contracts in the radial direction of the drive body 310.

[0175] Since the drive head 320 can be fixedly connected to the drive body 310, the displacement of the drive head end face 322 of the drive head 320 near the drive body 310 in the radial direction (perpendicular to the axis of the through hole 313 of the drive body) is relatively large. That is, the drive head end face 322 of the drive head 320 near the drive body 310 expands or contracts in the radial direction of the drive head 320.

[0176] Since the volume of the drive head 320 remains essentially constant, the drive head 320 can extend or shorten in the axial direction of the drive body through hole 313 under the action of the drive body 310. When the drive body end face 311 of the drive body 310 near the drive head 320 expands radially in the drive body 310, the drive head end face 322 of the drive head 320 near the drive body 310 can expand radially in the drive head 320, and the drive head 320 can shorten in the axial direction of the drive body through hole 313; when the drive body end face 311 of the drive body 310 near the drive head 320 contracts radially in the drive body 310, the drive head end face 322 of the drive head 320 near the drive body 310 can contract radially in the drive head 320, and the drive head 320 can extend in the axial direction of the drive body through hole 313.

[0177] Therefore, under the action of the driving body 310, the driving head 320 can have a displacement in the axial direction of the through hole 313 of the driving body. Furthermore, due to the friction between the elastic pin 330 and the driving body 310, the elastic pin 330 can follow the driving head 320 and have a displacement within the through hole 323 of the driving head, and in the extending direction of the elastic pin 330.

[0178] As the elastic pin 330 moves toward the drive head 320 and away from the drive body 310, it can gradually move out of the drive body through hole 313. During this process, the time the drive body 310 is in an elongated (slender) state can be longer than the time it is in a shortened (thick) state; that is, the time the drive body end face 312 deforms toward the drive head 320 can be shorter than the time it deforms away from the drive head 320. Correspondingly, the time the drive head 320 is in an elongated (slender) state can be longer than the time it is in a shortened (thick) state; that is, the time the drive head end face 321 deforms toward the drive body 310 can be shorter than the time it deforms away from the drive body 310. In other words, the elongation speed of the drive head 320 is relatively slow, and the contraction speed is relatively fast.

[0179] When the drive head 320 slowly extends, due to the friction between the elastic pin 330 and the wall of the drive head through hole 323, the elastic pin 330 can move out of the drive head through hole 323 under the drive of the drive head 320. Let's assume the displacement of the elastic pin 330 out of the drive head through hole 323 is displacement 1. When the drive head 320 rapidly retracts, due to the inertia of the elastic pin 330 continuing to move out of the drive body through hole 313, the elastic pin 330 may not move into the drive body through hole 313, or the displacement of the elastic pin 330 into the drive body through hole 313 may be relatively small. Let's assume the displacement of the elastic pin 330 into the drive head through hole 323 is displacement 2. Displacement 2 can be negative (i.e., the elastic pin 330 still moves out of the drive body through hole 313), or displacement 2 can be positive, and displacement 2 can be less than the aforementioned displacement 1. Since the elongation and contraction of the drive body 310 are the same or substantially the same within one cycle, the elastic pin 330 can move out of the drive body through hole 313 a certain distance after one cycle. The drive body 310 can repeatedly extend and retract within multiple cycles, allowing the elastic pin 330 to be gradually moved out of the drive body through hole 313. The principle of the elastic pin 330 moving into the drive body through hole 313 can be referred to the principle of the elastic pin 330 moving out of the drive body through hole 313.

[0180] like Figure 18 As shown in (a), before the elastic pin 330 moves out of the drive body through hole 313, the contact area between the elastic pin 330 and the drive head through hole 323 is relatively large. Figure 18 As shown in (b), during the process of the elastic pin 330 moving out of the drive body through hole 313 and gradually moving out of the drive head through hole 323, the contact area between the elastic pin 330 and the drive head through hole 323 gradually decreases.

[0181] In one possible scenario, the amplitude of the drive body 310 can be flexibly adjusted based on the moving resistance of the elastic pin 330 to ensure a relatively stable moving speed of the elastic pin 330. For example, before the elastic pin 330 moves out of the drive body through hole 313, the friction between the elastic pin 330 and the drive head through hole 323 is relatively large, resulting in a relatively large return displacement of the elastic pin 330 within one cycle, and therefore a relatively small total displacement of the elastic pin 330 within one cycle. Increasing the amplitude of the drive body 310 helps to make the moving speed of the elastic pin 330 relatively faster. Conversely, after the elastic pin 330 moves out of the drive body through hole 313, the friction between the elastic pin 330 and the drive head through hole 323 gradually decreases, resulting in a gradually decreasing return displacement of the elastic pin 330 within one cycle, and therefore a gradually increasing total displacement of the elastic pin 330 within one cycle. Gradually decreasing the amplitude of the drive body 310 helps to make the moving speed of the elastic pin 330 relatively stable.

[0182] Before the elastic pin 330 moves out of the drive body through hole 313, the friction between the elastic pin 330 and the drive head through hole 323 is relatively large; after the elastic pin 330 moves out of the drive body through hole 313, the friction between the elastic pin 330 and the drive head through hole 323 gradually decreases. Therefore, there can be a correlation between the friction between the elastic pin 330 and the drive head through hole 323 and the travel distance of the elastic pin 330. In one possible case, by detecting the friction between the elastic pin 330 and the drive head through hole 323, the displacement of the elastic pin 330 out of the drive head through hole 323 can be obtained. This is beneficial for controlling the accurate movement of the elastic pin 330.

[0183] Figure 19 A schematic structural diagram of another driving component 300 provided in an embodiment of this application is shown. Figure 19 Image (a) shows the drive assembly 300 when the resilient pin 330 is not moved. Figure 19 (b) shows the drive assembly 300 after the elastic pin 330 has been moved.

[0184] and Figure 17 The embodiments shown are similar. Figure 19 The drive assembly 300 shown includes a drive body 310, a drive head 320, a spring pin 330, and a counterweight 350. The drive head 320 has a mounting ear 340 at the end near the drive body 310. Figure 19 The structure of the drive head 320 shown is similar to Figure 17 The structure of the drive head 320 shown is different; Figure 19 The structure of the counterweight 350 shown is similar to Figure 17 The structure of the counterweight 350 shown is different. Along... Figure 19 The DD section observation drive assembly 300 shown in (a) can be used to obtain... Figure 20The cross-sectional view shown.

[0185] like Figure 20 As shown, the side of the drive head 320 facing the drive body 310 may have a drive head groove 324. The recess direction of the drive head groove 324 may be parallel to the axial direction of the drive body through hole 313. The inner diameter of the drive head groove 324 may match the outer diameter of the drive body 310. The end of the drive body 310 near the drive head 320 may be accommodated in the drive head groove 324. The drive body end face 311 of the drive body 310 may be fixed to the bottom of the drive head groove 324, and the drive body sidewall 314 of the drive body 310 may be fixed to the groove wall of the drive head groove 324. This increases the fixing area between the drive body 310 and the drive head 320, and improves the connection stability between the drive body 310 and the drive head 320. Figure 20 In the embodiment shown, the depth of the drive head groove 324 in the axial direction of the drive body through hole 313 can be less than the size of the mounting ear 340.

[0186] like Figure 20 As shown, the side of the counterweight 350 facing the drive body 310 may have a counterweight groove 353. The end of the drive body 310 near the counterweight 350 may be accommodated within the counterweight groove 353. The recessed direction of the counterweight groove 353 may be parallel to the axial direction of the through hole 313 in the drive body. The inner diameter of the counterweight groove 353 may match the outer diameter of the drive body 310. The drive body end face 312 of the drive body 310 may be fixed to the bottom 3532 of the counterweight groove 353, and the drive body sidewall 314 of the drive body 310 may be fixed to the groove wall 3531 of the counterweight groove 353. This increases the fixing area between the drive body 310 and the counterweight 350, thereby improving the connection stability between them.

[0187] Figure 21 It shows Figure 17 or Figure 19 The modal simulation diagram of the drive component 300 in the shortened state is shown (the elastic pin 330 is not shown in the simulation diagram). Figure 17 or Figure 19 The drive assembly 300 shown can have a relatively large amount of contraction and elongation, which is beneficial for enabling the elastic pin 330 to move relatively quickly.

[0188] Table 2 shows Figure 17 or Figure 19The resonant performance of the drive assembly 300 is shown. By designing the shape and size of each component in the drive assembly 300, it is advantageous to make the amplitude of the drive assembly 300 relatively large and relatively close to the drive head 320; in addition, it is also advantageous to make the drive assembly 300 meet the pure modal requirements, that is, to reduce the possibility of the drive assembly 300 exhibiting heterodynes. The embodiments provided in this application are not limited to the specific dimensions in Table 2.

[0189] Table 2 Figure 17 or Figure 19 The resonant performance of the driving component 300 shown

[0190]

[0191] and Figure 6 or Figure 13 Compared to the embodiments shown, Figure 17 and Figure 19 The drive head 320 shown is relatively long, therefore the mass of the movable part 381 that the elastic pin 330 can support can be relatively large. Combined Figure 21 The simulation results show that the displacement of the end of the drive head 320 away from the drive body 310 in the direction of the hole axis of the drive body through hole 313 can be relatively large, which is beneficial to increasing the total displacement of the elastic pin 330 in one cycle. Combined with the resonance performance shown in Table 2, under the condition of roughly the same amplitude, Figure 17 and Figure 19 The drive unit 310 shown can be relatively small in size, which helps to reduce the space occupied by the drive component 300. By supplying power to the relatively small drive unit 310, the energy efficiency of the drive unit 310 can be improved.

[0192] This application provides a driving component and an electronic device having the driving component. By supplying power to the driving body, the driving body itself can deform in a specified movement direction. The driving head is fixedly connected to the driving body, so the driving body can drive the driving head to have a displacement in the specified movement direction. The driving head through-hole and the elastic pin abut against each other, so the elastic pin can follow the driving head and move in the specified movement direction within the driving head through-hole. The elastic pin can be fixedly connected to a movable part in the electronic device, so the movable part can move in the specified movement direction under the action of the elastic pin. Since the extension direction of the elastic pin is the specified movement direction, and both the driving body and the driving head extend in the specified movement direction, the space occupied by the driving component perpendicular to the specified movement direction is relatively small. Through the periodic deformation of the driving body, the displacement of the elastic pin in multiple cycles can be accumulated, which is beneficial to achieving a relatively long movable stroke.

[0193] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A driving component (300), characterized in that, include: The driving body (310) includes a driving body through hole (313). A drive head (320) is fixed to one end of the drive body (310). The drive head (320) includes a drive head through hole (323), which is connected to and parallel to the drive body through hole (313). An elastic pin (330) is housed in the drive head through hole (323), and the outer periphery of the elastic pin (330) abuts against the hole wall of the drive head through hole (323). When the drive body (310) is powered, the drive body (310) has a deformation in the axial direction of the through hole (313) of the drive body, and the drive head (320) drives the elastic pin (330) to move under the action of the drive body (310). The driving body (310) includes a first driving body end face (311), which is fixedly connected to the driving head (320). When the driving body (310) is powered, the first driving body end face (311) deforms in the axial direction of the through hole (313) of the driving body. Under the drive of the first driving body end face (311), the driving head (320) and the elastic pin (330) move in the axial direction of the through hole (313) of the driving body; or, The driving body (310) includes a first driving body end face (311), which is fixedly connected to the driving head (320). When the driving body (310) is powered, the first driving body end face (311) has a deformation in the direction perpendicular to the hole axis of the driving body through hole (313). Under the drive of the first driving body end face (311), the driving head (320) has a deformation in the direction of the hole axis of the driving head through hole (323). The elastic pin (330) moves in the direction of the hole axis of the driving head through hole (323) under the drive of the driving head (320).

2. The driving component (300) according to claim 1, characterized in that, When the drive body (310) is powered, the first drive body end face (311) moves back and forth in the direction of the hole axis of the drive body through hole (313). When the movement time of the first drive body end face (311) toward the drive head (320) is greater than the movement time of the first drive body end face (311) away from the drive head (320), the elastic pin (330) moves in the direction from the drive body through hole (313) to the drive head through hole (323).

3. The driving component (300) according to claim 1, characterized in that, When the drive body (310) is powered, the first drive body end face (311) reciprocates in a direction perpendicular to the axis of the drive body through hole (313). When the duration of the first drive body end face (311) in the expanded state is less than the duration of the first drive body end face (311) in the contracted state, the elastic pin (330) moves in the direction from the drive body through hole (313) to the drive head through hole (323).

4. The drive assembly (300) according to claim 1 or 2, characterized in that, The drive assembly (300) is applied to an electronic device (100), the electronic device (100) including a connector (382), and the drive assembly (300) further includes: Mounting ear (340), which is fixed to the resonant zero point of the drive body (310), is used to connect with the connecting platform (382).

5. The drive assembly (300) according to claim 4, characterized in that, The mounting ear (340) is an annular component, and the mounting ear (340) surrounds the outer periphery of the drive body (310).

6. The drive assembly (300) according to claim 1 or 3, characterized in that, The drive assembly (300) is applied to an electronic device (100), the electronic device (100) including a connector (382), and the drive assembly (300) further includes: Mounting ear (340) is fixed to the side of the drive head (320) near the drive body (310) and is used to connect to the connecting platform (382).

7. The drive assembly (300) according to claim 6, characterized in that, The mounting ear (340) is part of the drive head (320).

8. The drive assembly (300) according to any one of claims 1 to 3, 5, and 7, characterized in that, The driving body (310) includes a multilayer ceramic, which is stacked radially along the through hole (313) of the driving body. The through hole (313) of the driving body has a first port (361) on its wall and a second port (362) on its side wall (314). The drive component (300) is applied to an electronic device (100), which includes a control module that supplies power to the drive body (310) through the first port (361) and the second port (362).

9. The drive assembly (300) according to claim 8, characterized in that, The sidewall (314) of the drive body (310) is also provided with a third port (363), and the drive assembly (300) also includes an electrical connector (371), which is electrically connected between the first port (361) and the third port (363).

10. The drive assembly (300) according to any one of claims 1 to 3, 5, and 7, characterized in that, The drive body (310) includes a multilayer ceramic layer, which is stacked along the hole axis of the through hole (313) of the drive body; The driving body (310) includes a first driving body end face (311) and a second driving body end face (312). The first driving body end face (311) is located on the side of the driving body (310) closer to the driving head (320), and the second driving body end face (312) is located on the side of the driving body (310) away from the driving head (320). The first driving body end face (311) is provided with a fourth port (364), and the second driving body end face (312) is provided with a fifth port (365). The drive component (300) is applied to an electronic device (100), which includes a control module that supplies power to the drive body (310) through the fourth port (364) and the fifth port (365).

11. The drive assembly (300) according to any one of claims 1 to 3, 5, 7, and 9, characterized in that, A drive head groove (324) is provided on the side of the drive head (320) near the drive body (310), and one end of the drive body (310) near the drive head (320) is fixed in the drive head groove (324).

12. The drive assembly (300) according to any one of claims 1 to 3, 5, 7, and 9, characterized in that, The drive head (320) includes a first drive head end face (321) and a second drive head end face (322). The first drive head end face (321) is located on the side of the drive head (320) away from the drive body (310), and the second drive head end face (322) is located on the side of the drive head (320) closer to the drive body (310). The outer diameter of the first drive head end face (321) is smaller than the outer diameter of the second drive head end face (322).

13. The drive assembly (300) according to claim 12, characterized in that, The outer diameter of the drive head (320) gradually decreases in the direction from the first drive head end face (321) to the second drive head end face (322).

14. The drive assembly (300) according to any one of claims 1 to 3, 5, 7, and 9, characterized in that, The elastic pin (330) has a slit (331) which is arranged parallel to the through hole (313) of the drive body.

15. The drive assembly (300) according to any one of claims 1 to 3, 5, 7, 9, and 13, characterized in that, The drive assembly (300) also includes a counterweight (350) fixed to the side of the drive body (310) away from the drive head (320).

16. The drive assembly (300) according to claim 15, characterized in that, The counterweight (350) has a counterweight groove (353) on the side near the drive body (310), and the end of the drive body (310) away from the drive head (320) is fixed in the counterweight groove (353).

17. The drive assembly (300) according to claim 15, characterized in that, The counterweight (350) has an elastic pin receiving cavity (352) on the side near the drive body (310), and the inner diameter of the elastic pin receiving cavity (352) is greater than or equal to the diameter of the through hole (313) of the drive body.

18. The drive assembly (300) according to any one of claims 1 to 3, 5, 7, 9, 13, 16, and 17, characterized in that, The diameter of the through hole (313) of the driving body is larger than the diameter of the through hole (323) of the driving head.

19. The drive assembly (300) according to any one of claims 1 to 3, 5, 7, 9, 13, 16, and 17, characterized in that, The material of the drive body (310) includes at least one of the following: lead zirconate titanate PZT-4, PZT-5 and PZT-8.

20. An electronic device (100), characterized in that, include: The drive component (300) as described in any one of claims 1 to 19. Connecting platform (382), on which the drive assembly (300) is mounted; A movable component, which is connected to the elastic pin (330); A control module for supplying power to the drive body (310).

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