Drive assembly, motor and terminal

Abstract

The application relates to the technical field of electronic products, in particular to a driving assembly, a motor and a terminal, the driving assembly comprising a driving piece and a driven piece, the driving piece comprising a vibration exciting part, a vibration part, a first fixing part and a pushing part; the vibration part is connected with the vibration exciting part; the first fixing part is connected with the vibration part, the vibration part is located between the vibration exciting part and the first fixing part along a first direction L; the pushing part is connected with the vibration part and the driven piece; the vibration exciting part can vibrate, the vibration exciting part can drive the vibration part to move, and under the limitation of the first fixing part, the vibration part can at least vibrate along the first direction L and a second direction W; wherein the first fixing part is used for limiting the moving distance of the pushing part along the first direction L and the second direction W through the vibration part. By using the driving assembly, the motor and the terminal provided in the application, on the basis of miniaturizing the motor, the stability of the driving assembly moving in different modes is better during driving, the movement precision is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, in particular to a driving assembly, a motor and a terminal. BACKGROUND

[0002] A piezoelectric motor (usually working in an ultrasonic frequency band, also commonly known as an ultrasonic motor, Ultrasonic Motor, abbreviated as USM) is driven by a resonator driven by a piezoelectric unit, so that some positions of the resonator form an elliptical motion in a certain direction, thereby driving the contact driven member to move. In this type of piezoelectric motor, double driving is often used to form a corresponding frequency vibration to form an elliptical motion. However, with the miniaturization of the motor, low-voltage driving required by miniaturization requires a high electromechanical coupling coefficient of the motor, which makes the performance drop sharply when the frequency deviates slightly from the resonance, increasing the difficulty of double driving degeneracy. Therefore, there is a demand for a motor that can achieve bidirectional motion control by single driving. Due to the miniaturization design, the internal space of such a motor is small, and the vibration part for driving the driven member to move is set as a corresponding swing arm. The swing arm makes corresponding motion by changing the frequency, and the swing arm structure has poor stability, and the driving effect is poor when driving the driven member to move, which may have certain deviation and easily cause damage to the swing arm. SUMMARY

[0003] The present application aims to provide a driving assembly, a motor and a terminal, which can make the motor miniaturized, and the stability of the driving assembly in different modes during driving is better, the motion precision is improved, and the service life is prolonged.

[0004] The present application provides a driving assembly, which comprises a driving member and a driven member, the driving member is used to drive the driven member to move, and the driving member comprises:

[0005] a vibration exciting part;

[0006] a vibration part connected with the vibration exciting part;

[0007] a first fixed part connected with the vibration part, the vibration part is located between the vibration exciting part and the first fixed part along a first direction L;

[0008] a pushing part connected with the vibration part and the driven member;

[0009] The vibration exciting part can vibrate, and the vibration exciting part can drive the vibration part to act, and under the limitation of the first fixed part, the vibration part can at least vibrate along a first direction L and a second direction W, so that the pushing part pushes the driven member to move along the first direction L;

[0010] The first fixing part is used for limiting the moving distance of the pushing part in the first direction L and the second direction W through the vibration part.

[0011] In the single-phase driven driving assembly, due to the demand for motor miniaturization, the space inside the driving assembly is small, and the cooperation between various parts is close. In order to meet the movement demand of the driven part in the limited space and under different frequency modes, improve the precision and stability of the movement, the first fixing part is arranged to limit the vibration part between the excitation part and the first fixing part, so that the excitation part can generate corresponding vibration under the arrangement of the corresponding frequency mode, and the vibration can be transmitted to the vibration part. Due to the arrangement of the first fixing part and the vibration of the excitation part to the vibration part, the vibration part can generate stress, and the vibration part can generate at least first direction L and second direction W vibration. Under the arrangement of the frequency mode, the phase difference between the first direction L and the second direction W vibration can drive the pushing part arranged thereon to move in the corresponding direction, and the moving distance of the pushing part along the first direction L and the second direction W is limited under the limitation of the first fixing part. Therefore, the pushing part can form a corresponding elliptical motion track. When the pushing part moves in the elliptical motion track, the pushing part can abut against and apply pressure to the driven part. The driven part in contact at the corresponding position can be pushed by the pushing part, that is, the driven part can move linearly or rotate. The problem of poor stability of the driving part driving the driven part in the small space of the miniaturized motor is avoided, the loss of the driving part is reduced, and the service life is improved.

[0012] In a possible design, the vibration part can be deformed;

[0013] Under the limitation of the first fixing part, the vibration of the excitation part can make the vibration part deform at least along the first direction L and the second direction W. The pushing part arranged in the vibration part can deform along the first direction L and the second direction W.

[0014] Under the limitation of the first fixing part, the deformation of the vibration part can make the position of the pushing part arranged in the vibration part generate an elliptical motion track, and the stability is better.

[0015] In a possible design, the vibration part is a ring structure, so that the vibration part can be deformed;

[0016] Along the first direction L, the first fixing part and the excitation part are arranged on the two sides of the ring structure, and the ring structure has an inner wall.

[0017] When the excitation part vibrates, along the first direction L, the distance between the inner walls increases, the distance of the inner walls along the second direction W decreases, and the pushing part is arranged at a position where the distance between the inner walls can decrease; or

[0018] Along the first direction L, the distance between the inner walls decreases, and the distance between the inner walls along the second direction W increases. The pushing part is disposed at a position where the distance between the inner walls can be increased.

[0019] By utilizing the characteristic of the ring structure that can deform under the action of external force, the vibration of the excitation part along the first direction L, under the constraint of the corresponding fixed part, can cause the ring structure to generate tensile or compressive stress. Under the action of stress, the distance between the inner walls of the ring structure increases or decreases. The ring structure undergoes compression (or tension) deformation due to the stress in the first direction L. According to the force transmission, it will generate expansion (or compression) deformation along the second direction W, so that the vibration part can generate the required relatively stable elliptical motion trajectory, thereby making the pushing part form a stable elliptical motion trajectory.

[0020] In one possible design, the pushing parts are symmetrically arranged on both sides of the annular structure along the second direction W, and the pushing parts are located at the position where the distance between the inner walls of the annular structure is the greatest.

[0021] The pushing part provided on the annular structure is designed to generate an elliptical motion trajectory by moving at least along the first direction L and the second direction W. At the same time, the annular structure will not come into contact with the driven part during deformation, thus affecting the use effect of the pushing part. Therefore, the pushing part can be set at the position with the farthest distance between the inner walls, so as to ensure the stability of the pushing part in pushing the driven part and improve the motion accuracy.

[0022] In one possible design, the vibrating part is an elastic element, which is capable of elastic deformation at least along a first direction L and a second direction W;

[0023] The pushing part is disposed at both ends of the elastic member in the direction of elastic deformation.

[0024] Based on the inherent characteristics of the elastic element, during vibration, the elastic element expands (or contracts) in directions other than the first direction L, which is the second direction W. Under the combination of the two deformations, the vibrating part can have a phase difference between the first direction L and the second direction W, thus forming a corresponding elliptical motion. The pushing part set at the end of the vibrating part can form a regular elliptical motion trajectory to drive the driven part to move, thereby improving the stability of the driven part's motion.

[0025] In one possible design, the vibrating part includes two or more connecting rods, at least two adjacent connecting rods are connected to form a connecting end, and the connected connecting rods have a first included angle between them;

[0026] When the excitation part vibrates, the first included angle can increase or decrease so that the vibrating part can deform;

[0027] The pushing part is located near the connecting end.

[0028] With this connecting rod configuration, when the excitation part vibrates, under the constraint of the corresponding fixed part, the vibration of the excitation part can act on the vibrating part. The connecting rod is subjected to compressive or tensile stress, causing the first included angle to increase or decrease accordingly. At the same time as the first included angle changes, since the two ends of the connecting rod that connect the excitation part and the first fixed part move closer or further apart, the connecting rod will also move accordingly in the second direction W. This causes the connecting rod to form a phase difference in the first direction L and the second direction W, so that it can at least partially achieve an elliptical motion trajectory, improving the stability of the motion of the pushing part and the accuracy of forming the elliptical motion trajectory.

[0029] In one possible design, there are two connecting rods, which are connected to form a V-shaped structure to create the first included angle;

[0030] The two connecting rods are respectively connected to the excitation part and the first fixing part;

[0031] The pushing part is connected to the connecting end.

[0032] The V-shaped connecting rod has a certain degree of stability and strength. When it is compressed and the first included angle changes, the controllability of the driving part to make a corresponding elliptical motion is strong, which improves the stability of driving the driven part to move.

[0033] In one possible design, the cross-sectional area of ​​the connecting rod gradually increases along its axial direction away from the connecting end.

[0034] By using a gradually changing cross-section, the structure becomes more stable when connecting the excitation part and the first fixed part, which can better transmit the vibration from the excitation part without affecting the increase or decrease of the first included angle. The movement of the driven part can be controlled at a lower frequency, thus improving the performance of the drive assembly.

[0035] In one possible design, there are three connecting rods, and the connecting rods are connected sequentially to form an unclosed structure;

[0036] The two outermost connecting rods are respectively connected to the excitation part and the first fixing part;

[0037] The pushing part is connected to the connecting rod located in the middle.

[0038] The method of connecting the pusher to the connecting rod in the middle position can improve the stability and reliability of the connection between the pusher and the connecting rod, so that it is not easily damaged when pushing the driven member to move, and the service life of the pusher is extended.

[0039] In one possible design, there are four or more connecting rods, which are connected end to end to form a closed polygonal structure;

[0040] Along the first direction L, the excitation part and the first fixing part are respectively connected to the connecting end, and along the second direction, the pushing part is connected to the connecting end; or,

[0041] Along the first direction L, the excitation part and the first fixing part are respectively connected to the connecting rod, and along the second direction W, the pushing part is connected to the connecting rod.

[0042] The closed connection of the polygon has good structural stability and high strength. When the pusher pushes the driven member to move, the elliptical motion trajectory will not be deviated due to poor stability, thus reducing the motion stability of the driven member.

[0043] In one possible design, multiple connecting rods are integrally formed.

[0044] While ensuring the structural stability of the vibrating part, it can better convert the vibration into the required elliptical motion trajectory.

[0045] In one possible design, along the second direction W, the pushing part is a protruding structure extending from the vibrating part, which can push the driven member to reciprocate along the first direction L.

[0046] By setting a protruding structure that extends at least partially out of the vibrating part along the second direction W, the pushing part can more easily cooperate with the driven part, avoiding deformation of the vibrating part that would cause other parts of the vibrating part to come into contact with the driven part, thereby affecting the stability of the movement of the driven part and disrupting the elliptical motion trajectory of the pushing part.

[0047] In one possible design, the active component further includes a second fixing part, which enables the vibration generated by the excitation part to act on the vibration part;

[0048] Along the first direction L, the second fixing part is connected to the side of the excitation part away from the vibration part, and the distance between the first fixing part and the second fixing part is fixed.

[0049] With the first and second fixing parts fixedly connected to the motor, the connected excitation part and vibration part are restricted between them. When the excitation part vibrates, it can only move in the direction of the vibration part under the limitation of the second fixing part. At this time, under the limitation of the first fixing part, the position where the vibration part is connected to the excitation part and the first fixing part is subjected to at least compressive or tensile stress from the first direction L, causing the vibration part to deform. At the same time, according to the structure of the vibration part, it can generate deformation at least along the second direction W, so that at least part of the vibration part (the position where the push part is located) forms an elliptical motion.

[0050] In one possible design, the excitation unit includes:

[0051] Body, the body being used to connect the vibrating part;

[0052] A driving component, which is connected to the body, is used to drive the body to vibrate in a single phase;

[0053] The driving component has a preset vibration frequency. Under the action of the preset vibration frequency, the vibration of the body can cause the vibrating part to vibrate at least along the first direction L and the second direction W.

[0054] It can achieve single-phase drive so that the excitation part can vibrate at the corresponding frequency (harmonic oscillator), thereby reducing the space occupied in the drive structure through a simple driving method.

[0055] In one possible design, the drive element is connected to at least one side of the body along the second direction W.

[0056] It enables the driving component to drive the connected body to have a better vibration effect.

[0057] In one possible design, the drive element includes:

[0058] A deformable part is connected to the main body, and the deformable part can deform when energized.

[0059] An energized part is connected to the deformable part, and the electricity generated by the energized part can be conducted to the deformable part;

[0060] The energized part can generate an electric field of the preset frequency, and the deformable part deforms under the action of the electric field, thereby causing the main body to vibrate.

[0061] It enables the driving component to convert electrical energy into vibration at the required frequency mode, thereby causing the connected body to vibrate and stretch or compress accordingly, thus causing the vibrating part of the connection to deform in a stretching or compressing direction.

[0062] In one possible design, the body, the vibrating part, and the first fixing part are integrally formed. This improves the structural stability of the connected parts and enhances the vibration transmission effect.

[0063] This application also provides a motor including a drive assembly, which is the drive assembly described in any one of the above descriptions. This motor and drive assembly have the same advantages, which will not be specifically described here.

[0064] This application also provides a terminal including a motor, which is the motor described above. This terminal has the same advantages as the drive assembly, and will not be specifically described here.

[0065] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0066] Figure 1 A main view of a driving component provided in an embodiment of this application, wherein the direction pointed to by arrow L is a first direction and the direction pointed to by arrow W is a second direction;

[0067] Figure 2 The image shows a front view of an active component provided in an embodiment of this application, wherein the direction pointed to by arrow L is a first direction, and the direction pointed to by arrow W is a second direction;

[0068] Figure 3 for Figure 2 A top view in the image;

[0069] Figure 4 for Figure 2 Another top view in the diagram;

[0070] Figure 5 This is a simplified structural diagram of the connection between various parts in an active component, provided for an embodiment of this application, wherein the direction pointed to by arrow L is the first direction, and the direction pointed to by arrow W is the second direction;

[0071] Figure 6 This is a simplified structural diagram of the connection between various parts in another active component provided in an embodiment of this application, wherein the direction pointed to by arrow L is the first direction and the direction pointed to by arrow W is the second direction;

[0072] Figure 7 This is a simplified structural diagram of the connection between various parts in another active component provided in an embodiment of this application, wherein the direction pointed to by arrow L is the first direction and the direction pointed to by arrow W is the second direction;

[0073] Figure 8This is a simplified structural diagram of the connection between various parts in another active component provided in an embodiment of this application, wherein the direction pointed to by arrow L is the first direction and the direction pointed to by arrow W is the second direction;

[0074] Figure 9 This is a simplified structural diagram of the first type of vibration part structure provided in the embodiments of this application, wherein the direction pointed to by arrow L is the first direction and the direction pointed to by arrow W is the second direction;

[0075] Figure 10 This is a simplified structural diagram of the second type of vibration part structure provided in the embodiments of this application, wherein the direction pointed to by arrow L is the first direction and the direction pointed to by arrow W is the second direction;

[0076] Figure 11 This is a simplified structural diagram of the third type of vibration part structure provided in the embodiments of this application, wherein the direction pointed to by arrow L is the first direction and the direction pointed to by arrow W is the second direction;

[0077] Figure 12 A simplified structural diagram of a fourth type of vibration component structure is provided for the embodiments of this application;

[0078] Figure 13 for Figure 11 A simplified structural diagram excluding the connections of the various parts of the drive unit;

[0079] Figure 14 A simplified structural diagram illustrating the fifth type of vibration component structure provided in this application embodiment;

[0080] Figure 15 for Figure 13 A simplified structural diagram of another type of excitation unit;

[0081] Figure 16 This application provides a simplified structural diagram of an active component according to an embodiment of the present application.

[0082] Figure 17 A simplified structural diagram illustrating the sixth type of vibration component structure provided in this application embodiment;

[0083] Figure 18 A simplified structural diagram illustrating the seventh type of vibration component structure provided in this application embodiment;

[0084] Figure 19 A front view of another active component provided in an embodiment of this application;

[0085] Figure 20 An additional view of another active component provided in an embodiment of this application.

[0086] Figure label:

[0087] 1-Second fixing part; 2-Vibration part; 21-Body; 22-Deformable part; 23-Electrified part; 3-Pushing part; 4-Vibration part; 41-Connecting rod; 411-V-shaped; 42-Elastic element; 43-Annular structural element; 431-Inner wall; 44-Connecting rod; 5-First fixing part; 6-Follower element.

[0088] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0089] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms "a," "the," and "the" as used in the embodiments of this application are also intended to include the plural forms unless the context clearly indicates otherwise.

[0090] One embodiment of this application provides a terminal that includes a motor. This terminal can be an electronic product such as a mobile phone or camera, and is not specifically limited thereto. Regarding the motor housed within the terminal, with the trend towards thinner and lighter electronic products like mobile phones, the space occupied by the motor used to drive the movement of corresponding components is reduced due to the shrinking internal space. Therefore, it is necessary to reduce the overall space occupied by the motor and achieve miniaturization. To minimize the motor's size and achieve miniaturization, the miniaturization of the drive component, a crucial part of the motor, has a significant impact on the overall thinness and lightness of the motor design. Therefore, miniaturizing the drive assembly to the maximum extent can be considered a design approach for motor miniaturization. The drive assembly, consisting of a driving element and a driven element 6, uses a piezoelectric unit to drive the vibration of a resonator, causing the resonator to rotate elliptically at certain positions. This drives the driven element 6 in contact with those positions. This engagement method reduces the space occupied by the drive assembly during operation. In this type of piezoelectric motor, whether the driving element causes the driven element 6 to move linearly or rotate depends on the drive mechanism. Due to the complexity of the motor's internal structure, miniaturization often requires low-voltage drives that demand high electromechanical coupling coefficients. This means that even slight deviations from resonance can cause a sharp drop in performance, increasing the difficulty of frequency degeneracy in multiphase drives. To achieve better frequency stability while meeting miniaturization requirements, a single-phase drive is employed.

[0091] In single-phase drive components, due to the need for motor miniaturization, the internal space of the drive component is small, and the fit between various components is relatively tight. To meet the motion requirements of the driven component 6 within this limited space and at different frequency modes, and to improve the accuracy and stability of the motion, as follows... Figure 1 , Figure 2 and Figure 11As shown, the active component includes an excitation part 2, a vibration part 4, a first fixing part 5, and a pushing part 3. The vibration part 4 is connected to the excitation part 2, and the first fixing part 5 is connected to the vibration part 4. The vibration part 4 is located between the excitation part 2 and the first fixing part 5 along the first direction L. The pushing part 3 is connected to the vibration part 4 and the driven part 6. The excitation part 2 can vibrate, and the excitation part 2 can drive the vibration part 4 to move. Under the restriction of the first fixing part 5, the vibration part 4 can vibrate at least along the first direction L and the second direction W, so that the pushing part 3 pushes the driven part 6 to move along the first direction L. The first fixing part 5 is used to limit the movement distance of the pushing part 3 in the first direction L and the second direction W through the vibration part 4. By using the first fixing part 5, the vibrating part 4 is confined between the excitation part 2 and the first fixing part 5, so that the excitation part 2 can generate corresponding vibrations in the corresponding frequency mode, and the vibration can be transmitted to the vibrating part 4. In the first direction L, due to the setting of the first fixing part 5 and the vibration of the excitation part 2 towards the vibrating part 4, the vibrating part 4 can generate stress, so that the vibrating part 4 can generate vibrations in at least the first direction L and the second direction W. In the set frequency mode, the phase difference between the vibrations in the first direction L and the second direction W can drive the pushing part 3 set thereon to move in the corresponding direction. Under the restriction of the first fixing part 5, the moving distance of the pushing part 3 along the first direction L and the second direction W is limited, so that the pushing part 3 can form a corresponding elliptical motion trajectory. When the pushing part 3 moves in the elliptical motion trajectory, the pushing part 3 can abut against the driven member 6 and apply pressure to the driven member 6. The driven member 6, which is in contact at the corresponding position, can be pushed by the pushing part 3 under pressure, so that it can perform linear motion or rotation. In simple terms, the excitation unit 2, based on the requirement that the driven component 6 needs to produce corresponding linear motion or rotation when it cooperates with the driven component 6, is adjusted to a corresponding frequency mode. The excitation unit 2 then generates vibration at this frequency mode. During vibration, vibration in the first direction L is generated. The excitation unit 2 applies the deformation generated by this vibration to the vibrating part 4. Under the constraint of the position of the first fixing part 5, the deformation of the excitation unit 2 causes the vibrating part 4 to be subjected to compression or stretching along the first direction L. Simultaneously, the vibrating part 4 can move along the second direction W while being compressed or stretched in the first direction L. The combination of the movement in the first direction L and the second direction W produces an elliptical motion at the corresponding position of the vibrating part 4, which drives the driven component 6 in contact at that position to produce corresponding movement. Therefore, the vibrating part 4 and the first fixing part 5 enable the vibrating part 4 to generate stable elliptical motion, driving the corresponding driven component 6 to move. This avoids the problem of poor stability in the driving component that drives the driven component 6 within the limited space of a miniaturized motor, reducing wear on the driving component and increasing its service life.

[0092] In the structure of the elliptical motion trajectory formed by limiting the movement distance of the pusher 3 in the first direction L and the second direction W, since it is a miniaturized motor, the curvature of its elliptical motion trajectory is relatively gentle, and the distance that the driven member 6 needs to move is also relatively small. Therefore, in the elliptical motion of the pusher 3, the movement in the second direction W is mainly used to achieve contact with the driven member 6 and to provide a squeezing force to the driven member 6, so that the pusher 3 can more stably drive the driven member 6 to move or rotate along the first direction L.

[0093] It is important to emphasize that the frequency modes mentioned can exist in the excitation unit 2 in multiple ways. These frequency modes vary depending on the frequency of the electric drive. In single-phase drive, the elliptical motion of the upper and lower ends of the vibration unit 4 under different frequency modes can be clockwise or counterclockwise, thereby driving the driven member to move in either the positive or negative direction, thus achieving bidirectional motion in single-phase drive. Changing the frequency mode can at least affect the direction and amplitude of the vibration of the excitation unit 2, ultimately altering the elliptical motion trajectory of a local position in the vibration unit 4 (the position where the pusher 3 is located), thereby enabling the controlled driven member 6 to reciprocate along a straight line and / or rotate. Therefore, the motor needs to be adjusted according to the actual usage to enable the driven member 6 to achieve a corresponding distance of linear reciprocating motion, and / or rotation of the driven member 6 relative to the driving member; specific limitations are not made here. Furthermore, for the first direction L and the second direction W mentioned above, there is at least a non-zero included angle between the two directions. The included angle between the first direction L and the second direction W will also be different depending on the specific structure of the vibration part 4 and the structural changes on the second direction W of the vibration part 4 caused by the vibration generated by the first direction L. As long as the vibration of the final vibration part 4 can drive the follower 6 to perform the corresponding movement, no specific limitation is made here.

[0094] Specifically, in order for the vibrating part 4 to be able to drive the pushing part 3 to generate a relatively stable elliptical trajectory (clockwise or counterclockwise) under the constraints of the first fixed part 5 and the excitation part 2 at the corresponding frequency mode, and to stably drive the driven part 6 to perform the corresponding movement. For example Figure 2As shown, the vibrating part 4 is deformable; under the constraint of the first fixing part 5, the vibrating part 4 generates stress and deforms, and the vibrating part 4 can deform at least along the second direction W. The vibration of the excitation part 2 can cause the vibrating part 4 to deform at least along the first direction L and the second direction W. The pushing part 3 is provided in the vibrating part 4 at a position where it can deform along the first direction L and the second direction W. By making the vibrating part 4 a deformable component, under the constraint of the first fixing part 5, within a limited space in the first direction L, the excitation part 2 applies a tensile or compressive force to the vibrating part 4, and the vibrating part 4 can deform along the first direction L by its own deformation. Under the deformation in this direction, it can drive the vibrating part 4 to deform at least along the second direction W. Through the deformation movement in the two directions, the corresponding displacement transformation capability is realized, thereby realizing that the vibrating part 4 moves at least partially along the corresponding elliptical trajectory. Therefore, the pushing part 3 is provided in the vibrating part 4 at a position where an elliptical motion trajectory can be generated. This design, through the deformation of the vibrating part 4, enables the vibrating part 4 to generate the required elliptical motion trajectory under the vibration of the corresponding frequency mode within a minimal spatial range. This, in turn, drives the pushing part 3, which also generates an elliptical motion trajectory, to move the driven member 6. This structure is simple to implement. Under the constraint of the first fixed part 5, the deformation of the vibrating part 4 is sufficient to generate an elliptical motion trajectory at the position where the pushing part 3 is located, resulting in better stability.

[0095] Furthermore, in order to better transmit vibration from the excitation part 2 to the vibration part 4, causing the vibration part 4 to undergo tensile or compressive deformation along the first direction L, and to allow the vibration part 4, under the constraint of the first fixing part 5 and the corresponding force exerted by the excitation part 2 on the vibration part 4, to better form a corresponding elliptical motion through its deformation, thereby enabling the pushing part 3 to move along the first direction L and the second direction W, and due to the limitation of the movement distance in the corresponding directions, the pushing part 3 forms an elliptical motion. In addition, the active member also includes a second fixing part 1, which is used to enable the vibration generated by the excitation part 2 to act on the vibration part 4; along the first direction L, the second fixing part 1 is connected to the side of the excitation part 2 away from the vibration part 4, and the distance between the first fixing part 5 and the second fixing part 1 is fixed. With the first fixing part 5 and the second fixing part 1 fixedly connected to the motor, the connected excitation part 2 and vibration part 4 are restricted between them. When the excitation part 2 vibrates, it can only act on the vibration part 4 under the limitation of the second fixing part 1. At this time, under the limitation of the first fixing part 5, the vibration part 4 is subjected to at least compressive or tensile stress from the first direction L at the position where it is connected to the excitation part 2 and the first fixing part 5, causing the vibration part 4 to be compressed or stretched. At the same time, according to the structure of the vibration part 4, it can generate at least deformation along the second direction W. Through the phase difference generated by the deformation of the vibration part 4 in the first direction L and the second direction W, the end of the vibration part 4 - the pushing part 3 - forms an elliptical motion.

[0096] More specifically, such as Figure 2 and Figure 11 As shown, in the structural arrangement where the end of the vibrating part 4—the pushing part 3—can move along an elliptical trajectory to drive the corresponding driven member 6 to move and / or rotate, the following explanation uses the movement of the driven member 6 as an example, and will not be emphasized separately later. This is to facilitate the adjustment of the elliptical trajectory for different frequency modes, allowing for adaptive adjustment according to requirements. Specifically, the elliptical motion trajectory formed by the pushing part 3 varies in distance along the first direction L and the second direction W depending on the phase difference generated by the deformation of the vibrating part 4 in the first direction L and the second direction W, thus forming different elliptical motion trajectories. Specifically, when the excitation part 2 vibrates, the deformation generated by the vibration of the vibrating part 4 gives it the ability to transform displacement in the first direction L and the second direction W, thereby driving the connected pushing part 3 to generate the final elliptical motion trajectory, thus driving the driven member 6 to perform the corresponding movement. During this process, after tuning the frequency mode, the intensity and direction of the elliptical motion of the pusher 3 can be determined by observing the direction and speed of the follower 6. The elliptical motion of the pusher 3 is often different under different frequency modes. Therefore, by observation, we obtain the modal frequency corresponding to the direction of motion of the follower 6. When we need to move the follower 6 in a specific direction, the excitation part 2 only needs to generate vibration of the corresponding frequency to excite the corresponding frequency mode, thereby exciting the pusher 3 to push the follower 6 to move in the specific direction. Furthermore, the pusher 3 is designed to avoid excessive surface contact between the vibrating part 4 and the follower 6, which could damage the vibrating part 4 due to excessive friction. It should be emphasized that the specific position of the pushing part 3 in the vibrating part 4 can be selected according to the specific structure of the vibrating part 4 and the displacement change of the vibration in the vibrating part 4. This is so that the pushing part 3 can better form a stable elliptical motion trajectory of the vibration of the vibrating part 4, while ensuring that the deformation of the vibrating part 4 will not directly contact the driven part 6 and affect the movement of the driven part 6 during the process of the pushing part 3 pushing the driven part 6. The position of the pushing part 3 will be adjusted according to the specific structure of the vibrating part 4, and no specific limitation is made here.

[0097] Optionally, the purpose of the pusher 3 is to drive the driven member 6, so its number and orientation on the vibrating part 4 need to be adjusted according to the number and position of the driven member 6, and are not specifically limited here. Furthermore, the pusher 3 can be a protruding structure or a columnar structure extending from the vibrating part 4 along the second direction W, capable of driving the driven member 6 to reciprocate along the first direction L. Alternatively, the specific structure of the pusher 3 and its specific direction of extension can also be adjusted according to the position of the driven member 6, so as to make point contact or surface contact with the mating driven member 6, thereby driving the driven member 6 to perform corresponding movement or rotation through elliptical trajectory motion, and are not specifically limited here. The pusher 3 is generally subjected to anti-wear treatment or coated with a wear-resistant layer to prevent wear during the movement of the driven member 6, which could lead to a decrease in motor performance (such as driving force).

[0098] As for the vibration unit 4, in order to enable it to have the ability to change displacement in a corresponding direction under the action of the excitation unit 2 and the limiting of the corresponding first fixing unit 5 and second fixing unit 1, so that the connected pushing unit 3 has a relatively stable elliptical motion trajectory, the vibration unit 4 can have various matching forms, as follows:

[0099] In one embodiment, such as Figure 9 As shown, the vibrating part 4 can be an elastic element 42 with deformability. When the excitation part 2 vibrates, under the restriction of the first fixing part 5, the elastic element 42 can at least contract or expand along the first direction L, and drive the elastic element 42 to deform at least along the second direction W. The pushing part 3 is provided at both ends of the elastic deformation direction (i.e., the second direction W) of the elastic element 42. By setting the vibrating part 4 as an elastic element 42 that can generate elastic deformation itself, under the vibration action of the excitation part 2 and the restriction of the displacement of the first fixing part 5 and the second fixing part 1, the vibrating part 4 is subjected to compressive or tensile stress along the first direction L, thereby causing the elastic element 42 to contract or expand itself. Meanwhile, under the contraction (or expansion) deformation of the elastic element 42 in this direction, due to the characteristics of the elastic element 42 itself, it will inevitably expand (or contract) along other directions besides the first direction L, that is, the second direction W. Under the combination of the two deformations, the vibration part 4 can have a phase difference between the first direction L and the second direction W, which can form a corresponding elliptical motion. The push part 3 provided at the end of the vibration part 4 can form a regular elliptical motion trajectory to drive the follower 6 to move, thereby improving the stability of the follower 6's movement.

[0100] Optionally, for the elastic element 42, due to its own characteristics, after being compressed or stretched by the first direction L, it is easier to produce elastic deformation along the direction perpendicular to the first direction L. Therefore, the second direction W can be set to be perpendicular to the first direction L, and the pushing part 3 is set at the edge of the vibration part 4 where the deformation along the second direction W is the greatest, so as to avoid other parts of the vibration part 4 from exceeding the pushing part 3 and contacting the driven member 6 due to excessive deformation when the vibration part 4 is deformed, thus interfering with the movement of the driven member 6.

[0101] In another embodiment, such as Figure 10As shown, the vibration part 4 can also be configured as a ring structure 43. The ring structure 43 can deform under the action of external force. Specifically, along the first direction L, the first fixing part 5 and the excitation part 2 are arranged opposite to each other (that is, along the first direction L, the first fixing part 5 and the excitation part 2 are on the same straight line, and there is no height difference between them in the second direction W) on both sides of the ring structure 43. The ring structure 43 has an inner wall 431. When the excitation part 2 vibrates, along the first direction L, the distance between the inner walls 431 increases, and the distance between the inner walls 431 along the second direction W decreases as the distance between the inner walls 431 along the first direction L increases. The pushing part 3 is arranged at the position where the distance between the inner walls 431 can decrease, or the distance between the inner walls 431 along the second direction W increases as the distance between the inner walls 431 along the first direction L decreases, and the pushing part 3 is arranged at the position where the distance between the inner walls 431 can increase. The annular structure 43, due to its annular structure, has a hollow middle section. When the excitation part 2 transmits vibrations of a corresponding frequency, in the first direction L, the excitation part 2 transmits the vibration to the annular structure through the connection position. Under the constraint of the first fixing part 5 and the second fixing part 1, the annular structure is subjected to tensile or compressive stress and deforms, causing the two connection positions connecting the first fixing part 5 and the excitation part 2 in the annular structure to move closer or further apart. That is, along the first direction L, under the constraint of the corresponding fixing part, the vibration of the excitation part 2 can cause the annular structure to generate tensile or compressive stress. Under the action of stress, the distance between the inner walls 431 of the annular structure increases or decreases, and the law and amplitude of this increase or decrease are determined according to the vibration of the excitation part 2. Furthermore, the annular structure 43, due to the compressive (or tensile) deformation caused by the stress in the first direction L, will, according to the force transmission, produce an expansion (or compression) deformation along the second direction W. That is, at least along the second direction W, the distance between the inner walls 431 of the annular structure decreases or increases as the distance between the inner walls 431 in the first direction L increases, thereby causing the pushing part 3, which is provided at the corresponding position, to produce elliptical motion. Based on this, the pushing part 3 is provided near the edge of the annular structure of the corresponding follower 6, and along the second direction W, the pushing part 3 is symmetrically arranged on both sides of the annular structure 43, and the pushing part 3 is provided at the position where the distance between the inner walls 431 in the annular structure 43 is the farthest, so as to avoid other parts of the annular structure from affecting the movement of the pushing part 3 pushing the follower 6 when deformed.

[0102] In yet another embodiment, such as Figure 5As shown, the vibration part 4 may also include a connecting rod 41, which may be two or more, with at least two adjacent connecting rods 41 connected to form a connecting end, and the connected rods having a first included angle; when the excitation part 2 vibrates, the first included angle may increase or decrease so that the vibration part 4 may deform; the pushing part 3 is located near the connecting end. The connecting rods 41 are configured to form a vibration section 4. Along the first direction L, the two outermost connecting rods 41 are connected to the excitation section 2 and the first fixing section 5, respectively. The other end of the excitation section 2 is connected to the second fixing section 1. Under the constraint of the two fixing sections, the vibration of the excitation section 2 acts on the vibration section 4. The connecting rods 41 are subjected to compressive or tensile stress, causing the first included angle to increase or decrease accordingly. Simultaneously with this change in the first included angle, as the two ends of the connecting rods 41, which are connected to the excitation section 2 and the first fixing section 5, move closer or further apart, the connecting rods 41 also move in the second direction W. This creates a phase difference between the connecting rods 41 in the first direction L and the second direction W, enabling them to at least partially achieve an elliptical motion trajectory. In this configuration, the second direction W can be adjusted appropriately based on the position and direction of the first included angle; no specific limitations are specified here. Furthermore, regarding the pushing part 3 installed on the connecting rod 41, since the connecting rod 41 is significantly affected by deformation during its movement according to the vibration frequency, the first included angle of the connecting rod 41 is positioned close to it to avoid direct contact between the connecting rod 41 and the driven member 6 due to deformation. Simultaneously, the structural fit of the connecting rod 41 to form the corresponding vibrating part 4 improves the structural stability of the vibrating part 4. When the excitation part 2 transmits vibrations of the corresponding frequency, the vibrating part 4 can better absorb the vibrations, resulting in better frequency control stability. Moreover, in this structural fit of the connecting rod 41, when vibrations of the corresponding frequency act on the vibrating part 4, and the connecting rod 41 deforms accordingly, the controllability is strong, allowing it to move according to the required direction and amplitude, thus forming the desired elliptical motion trajectory. Furthermore, during the movement of this trajectory, since it is necessary to drive the driven member 6 to make corresponding movements, the structure of the connecting rod 41 is limited by its own structural strength and the first fixed part 5 and the second fixed part 1, so the connecting rod 41 is not prone to out-of-plane deviation of the elliptical motion trajectory, thereby enabling the pushing part 3 connected to it to stably drive the driven member 6 to move.

[0103] In this embodiment, regarding the structural fit of the connecting rod 41, within the limited space of the miniaturized motor, the connecting rod 41 can be combined to form different structures according to the placement position of the driven member 6 relative to the driving member, as well as the different requirements such as the movement mode and range of motion of the driven member 6. Specifically, it may include, but is not limited to, the following:

[0104] Optional, such as Figure 11 As shown, there can be two connecting rods 41, which are connected to form a V-shaped structure 411, creating a first included angle. The two ends of the two connecting rods 41 are respectively connected to the excitation part 2 and the first fixing part 5. The pushing part 3 is connected to the connecting end. When the excitation part 2 vibrates, the first included angle can increase or decrease under the pulling or compressing force generated on the vibrating part 4. In the vibrating part 4 formed by the connecting rods 41 in this structure, the pushing part 3 can be located at the tip of the V-shaped structure 411 (i.e., the connecting end), and the direction of the pushing part 3 is the direction corresponding to the driven member 6. The connecting end of the V-shaped 411 can also be a protruding structure towards the driven member 6, thus facilitating the driving of the driven member 6. In this V-shaped 411 structure, the V-shaped 411 itself has a certain stability and strength. When the first included angle changes due to compression, the controllability of driving the pushing part to make a corresponding elliptical motion is strong, improving the stability of driving the driven member 6.

[0105] Specifically, in this structural fit, to ensure good structural stability of the connecting rod 41 and to generate a relatively stable elliptical motion trajectory under vibration at a corresponding frequency, thereby enabling the follower 6 to move, the connecting rod 41 can be configured with a non-uniform cross-section structure. For example, along the axial direction of the connecting rod 41, away from the connecting end, the cross-sectional area of ​​the connecting rod 41 gradually increases. This gradual change in cross-section improves the structural stability when connecting the excitation part 2 and the first fixing part 5, allowing for better transmission of vibration from the excitation part 2 without affecting the increase or decrease of the first included angle. This enables control of the follower 6's movement at a lower frequency, improving the performance of the drive assembly.

[0106] Or, such as Figure 17 As shown, there can be three connecting rods 41, which are sequentially connected to form an unclosed structure, creating two first included angles. The two outermost connecting rods 41 are respectively connected to the excitation part 2 and the first fixing part 5. When the excitation part 2 vibrates, the first included angle can increase or decrease. The pushing part 3 is connected to the connecting rod 41 located in the middle. In this structural arrangement of the connecting rods 41, by sequentially connecting at least three connecting rods 41, and forming a first included angle between adjacent connecting rods 41, the stability and reliability of the connection between the pushing part 3 and the connecting rod 41 can be improved. This makes it less prone to damage when pushing the driven member 6, thus increasing the service life of the pushing part 3.

[0107] Or, as Figure 18 As shown, there can be four or more connecting rods 41, which are connected end to end to form a closed polygonal structure, with adjacent connecting rods 41 forming a first included angle. Along the first direction L, the excitation part 2 and the first fixing part 5 are respectively connected to the connecting end, and along the second direction W, the pushing part 3 is connected to the connecting end; or, along the first direction L, the excitation part 2 and the first fixing part 5 are respectively connected to the connecting rod 41, and along the second direction W, the pushing part 3 is connected to the connecting rod 41. The polygonal structure connects the excitation part 2 and the first fixing part 5 respectively. This polygonal structure, forming a stable structure, improves the stability of the vibration part 4. When the pushing part 3 pushes the driven member 6, the elliptical motion trajectory will not deviate due to poor stability, thus reducing the motion stability of the driven member 6.

[0108] Regardless of the structural configuration of the connecting rods 41 described above, the lengths of the connecting rods 41 can be the same or different. The first included angle of the connecting rods 41 is a non-zero angle, and its range of variation is not specifically limited here to ensure the formation of the required elliptical motion trajectory at different vibration frequencies. Furthermore, depending on the specific structure of the connecting rods 41, in order to ensure the stability of the vibrating part 4 while allowing adjustment at lower frequencies to reduce energy consumption, the preferred range of the first included angle will vary for different structures of the vibrating part 4. This is not specifically limited here.

[0109] Optionally, for the connecting rod 41 structure, in order to ensure a smoother change in the first included angle when connecting the connecting rods 41 to save energy, multiple connecting rods are rotatably connected. In this rotatable connection structure, since a certain degree of stability is required after the connecting rods 41 are connected to prevent arbitrary deformation, the rotatable connection can be designed to be relatively stable and not prone to excessive rotational deformation. Alternatively, since the amplitude of the movement of the driven member 6 in the miniaturized motor is small, and the range of change of the connecting rods 41 and the first included angle is relatively small when the vibrating part 4 moves along the elliptical trajectory formed by its deformation, the multiple connecting rods 41 can be designed as a single-piece metal part. The metal connecting rods 41 have a certain deformation capacity, so the elastic deformation of the corresponding metal part can meet the requirements.

[0110] It should be emphasized here that the connection between the second fixing part 1, the excitation part 2, the vibration part 4 and the first fixing part 5 can be achieved through a completely contact connection, or through multiple connection points and connecting rods 44 (such as...). Figure 18 The connection method (as shown) or other methods that can achieve the connection are not specifically limited here. Furthermore, the second fixing part 1, excitation part 2, vibration part 4, and first fixing part 5 can be combined in appropriate quantities and positions according to the number and location of the driven members 6 to meet the driving requirements of the driven members 6 under different miniaturization conditions. For example... Figure 15 As shown, due to limitations such as internal space and the position of the driven member 6, the driven member 6 cannot be positioned on the upper or lower sides of the driving member or sleeved on the outside. Only the middle position is available for the driven member 6. To achieve stable and high-precision motion control of the driven member 6 within this space, the vibration units 4 of different forms mentioned above can be positioned on the upper and lower sides of the driven member 6, and the first fixing unit 5 can be fixed to the upper and lower sides respectively (or the first fixing unit 5 can simultaneously fix two vibration units 4, such as...). Figure 13 and Figure 14 (As shown) different vibrating parts 4 are connected. In order to enable the upper and lower vibrating parts 4 to form a mirrored elliptical motion trajectory and drive the driven member 6, the two vibrating parts 4 can be connected to the same excitation part 2 to drive the driven member 6 in the middle position. Alternatively, two or more sets of second fixed parts 1, excitation parts 2, vibrating parts 4 and first fixed parts 5 can be connected to form a new driving member. In this kind of cooperation structure, the excitation part 2 and the pushing part 3 are connected between the two sets of connected second fixed parts 1, vibrating parts 4 and first fixed parts 5 (e.g. Figure 17 As shown, with this structural arrangement, when the corresponding component bends outward in the plane formed by the vibrating part 4, the fixing part, etc., it will generate strong shear stress with the pushing part 3 and the excitation part 2. This shear stress will force it back to its original plane, limiting out-of-plane oscillation. In addition, due to the symmetry of the design, this type of out-of-plane mode is not easily excited. Moreover, the pushing part 5 can be made of a single piece of wear-resistant material instead of a coating method, which also enhances the wear resistance of this embodiment.

[0111] This application also provides a specific implementation method, such as... Figure 3 and Figure 4As described above, the excitation unit 2 is designed to achieve single-phase drive, enabling it to vibrate at the corresponding frequency (harmonic oscillator). This simplifies the drive mechanism and reduces the space occupied in the drive structure. The excitation unit 2 includes a body 21 and a drive component. The body 21 connects to the vibration unit 4. The drive component connects to the body 21 and drives the body 21 to vibrate in a single phase. The drive component has a preset vibration frequency. Under the action of the preset vibration frequency, the vibration of the body 21 causes the vibration unit 4 to vibrate at least along the first direction L and the second direction W. The preset vibration frequency is the frequency mode that, after experimentation, enables the required elliptical motion trajectory of the desired location (the position where the push unit 3 is located) to be achieved with the cooperation of the excitation unit 2, the vibration unit 4, and the first fixing part 5. This preset vibration frequency may vary depending on the actual situation, the cooperation of different driven parts 6, and the motion requirements. As long as the push unit 3 can achieve the required elliptical motion trajectory, it is acceptable. No specific limitation is made here.

[0112] Specifically, the driving component serves as a power provider for driving the body 21 to vibrate according to the required frequency modes. To ensure a good vibration effect on the connected body 21, the driving component is connected to at least one side of the body 21 along the second direction W. This allows the driving component to directly convert and transfer the vibration energy to the body 21. Through adhesive bonding or other direct contact connection methods, the vibration can be transferred to the body 21 to the maximum extent, and the connection structure has good stability, making it less likely for the driving component to detach from the body 21 during vibration. Furthermore, to minimize vibration loss transmitted to the body 21, the body 21 can be configured with a hollowed-out structure in the middle, with the driving component housed within this hollowed-out structure (e.g., ...). Figure 1 As shown (in the diagram), it can extend or not extend. This arrangement improves the stability of the vibration transmitted to the body 21, ensuring a better vibration effect. It should be emphasized that the specific structure of the body 21 can be configured in various ways depending on the requirements, such as... Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, such as hollowed-out type, integral plate structure or combination of multiple line structures, etc., are not specifically limited here.

[0113] Optionally, the first fixing part 5, the body 21, the vibrating part 4, and the second fixing part 1 can all be on the same plane, such as... Figure 11 As shown, the connecting rod 41 and the pushing part 3, which have a first included angle, both extend in the plane toward the driven member 6, which is at least partially located in the plane, so that the part of the vibrating part 4 that contacts the driven member 6 forms a corresponding elliptical motion in the plane, thereby driving the driven member 6 to reciprocate. Or, as Figure 19 andFigure 20 As shown, the vibrating part 4 and the pushing part 3 connected to it can also be extended outward from the plane by at least partial deformation after connecting the corresponding first fixing part 5 and the body 21 in the plane, so that the pushing part 3 abuts against the driven member 6 in other planes. That is, the vibrating part 4 and / or the pushing part 3 produce a partial protrusion outward from the plane, so that at least part of them are not coplanar with the body 21, the fixing part, etc. Therefore, the specific structural fit of the vibrating part 4 and the pushing part 3 and their connection with the body 21, the fixing part, etc. can be adaptively adjusted according to the position layout of the driven member 6 in the drive assembly, as well as the required elliptical motion trajectory, the vibration amplitude of the vibrating part 4, the vibration direction, etc., and no specific limitation is made here.

[0114] More specifically, in order to enable the driving component to convert electrical energy into vibration at the required frequency mode, the driving component includes a deformable part 22 and an energized part 23. The deformable part 22 is connected to the body 21 by adhesive bonding. The deformable part 22 deforms when energized. The energized part 23 is connected to the deformable part 22, and the electricity generated by the energized part 23 is conducted to the deformable part 22. The energized part 23 generates an electric field of a specific frequency, and the deformable part 22 deforms under the influence of this electric field, causing the body 21 to vibrate at a preset vibration frequency (i.e., the deformation generated by the deformable part 22 causes the body 21 to undergo corresponding deformation motion). This causes the body 21 to contract or expand along the first direction L, and under the constraint of the corresponding fixing part, a reciprocating tensile or compressive force is applied to the vibrating part 4, causing the vibrating part 4 to vibrate in the first direction L and the second direction W. Thus, the deformable part 22 can deform to different degrees according to the electrical frequency of the energized part 23, thereby causing corresponding vibrations in the connected body 21. The deformable part 22 is made of an electrodeformable material, such as piezoelectric, magnetostrictive, or shape memory alloy, and is not specifically limited here. In order to enable it to deform when energized, an energizing part 23 is provided, which can be connected to a power source to achieve electrical connection.

[0115] As for the energized part 23 and the deformable part 22, such as Figure 3 As shown, a piezoelectric element can consist of one or more components. Electrodes are connected to the two outermost surfaces of the piezoelectric element, and the electrodes are connected to the two driving ends. The driving method can be a sine wave, square wave, triangular wave, trapezoidal wave, etc., without limitation, but a sine wave is preferred. As for the specific structure of the electrode connection and driving, such as whether it is a single-end drive or a double-end drive, the specific structure will be adjusted according to different situations, and no specific limitation is made here.

[0116] Optional, such as Figure 12 and Figure 13As shown, for the second fixing part 1, the main body 21, the vibrating part 4, and the first fixing part 5, when the vibrating part 4 is configured as a ring-shaped structural member 43 or a connecting rod 41 that can deform through structural cooperation (such as...), Figure 6 and Figure 11 In order to achieve a good deformation effect, the deformation is small and the vibration force can be transmitted relatively completely. Therefore, the vibration part 4 is set as a metal sheet or metal rod. When connecting it to the main body 21, the first fixing part 5 and the second fixing part 1, in order to achieve good stability and prevent damage, each part is set as a metal part and each part is integrally formed.

[0117] Among them, the various metal parts mentioned above can be directly connected or connected by other structures such as connecting rod 44. When connected by a connector similar to connecting rod 44, the connection stiffness between excitation part 2, vibration part 4 and first fixed part 5 can be reduced. When the excitation part 2 transmits vibration, this structure can make the vibration transmission effect better compared with the greater stiffness generated by direct contact with a larger surface.

[0118] However, it should be noted that a portion of this patent application contains copyrighted material. The copyright holder retains all rights except for making copies of the contents of patent documents or records from the patent office.

Claims

1. A driving assembly, the driving assembly comprising a driving member and a driven member (6), the driving member being used to drive the driven member (6) to move, characterized in that, The active component includes: Excitation section (2); Vibration section (4), which is connected to excitation section (2); The first fixing part (5) is connected to the vibration part (4) along the first direction L, and the vibration part (4) is located between the excitation part (2) and the first fixing part (5). A driving part (3) is connected to the vibrating part (4) and the driven member (6); The excitation part (2) is capable of vibration, and the excitation part (2) is capable of driving the vibration part (4) to move. Under the restriction of the first fixing part (5), the vibration part (4) is capable of vibrating at least along the first direction L and the second direction W, so that the pushing part (3) pushes the driven member (6) to move along the first direction L. The vibrating part (4) is deformable; The first fixing part (5) is used to limit the movement distance of the pushing part (3) in the first direction L and the second direction W by means of the vibration part (4).

2. The driving component according to claim 1, characterized in that, Under the constraint of the first fixing part (5), the vibration of the excitation part (2) can cause the vibration part (4) to deform at least along the first direction L and the second direction W. The pushing part (3) is disposed in the vibration part (4) at a position that can deform along the first direction L and the second direction W.

3. The driving component according to claim 2, characterized in that, The vibrating part (4) is a ring structure (43) so that the vibrating part (4) can deform; Along the first direction L, the first fixing part (5) and the excitation part (2) are disposed opposite to each other on both sides of the annular structure (43), and the annular structure (43) has an inner wall (431). When the excitation part (2) vibrates, the distance between the inner walls (431) increases along the first direction L, and the distance between the inner walls (431) decreases along the second direction W. The pushing part (3) is disposed at a position where the distance between the inner walls (431) can be reduced; or, Along the first direction L, the distance between the inner walls (431) decreases, and the distance between the inner walls (431) along the second direction W increases. The pushing part (3) is disposed at a position where the distance between the inner walls (431) can increase.

4. The driving component according to claim 3, characterized in that, Along the second direction W, the pushing part (3) is symmetrically arranged on both sides of the annular structure (43), and the pushing part (3) is located at the position furthest from the inner wall (431) of the annular structure (43).

5. The driving component according to claim 2, characterized in that, The vibrating part (4) is an elastic element (42), and the vibrating part (4) is capable of elastic deformation at least along the first direction L and the second direction W; The pushing part (3) is disposed at both ends of the elastic member (42) in the elastic deformation direction.

6. The driving component according to claim 2, characterized in that, The vibration part (4) includes two or more connecting rods (41), at least two adjacent connecting rods (41) are connected to form a connecting end, and the connected connecting rods have a first included angle; When the excitation part (2) vibrates, the first included angle can increase or decrease so that the vibration part (4) can deform; The pushing part (3) is located near the connecting end.

7. The driving component according to claim 6, characterized in that, There are two connecting rods (41), and the connecting rods (41) are connected to form a V-shaped (411) structure to form the first included angle; The two connecting rods (41) are respectively connected to the excitation part (2) and the first fixing part (5); The pushing part (3) is connected to the connecting end.

8. The driving component according to claim 7, characterized in that, Along the axial direction of the connecting rod (41) away from the connecting end, the cross-sectional area of ​​the connecting rod (41) gradually increases.

9. The driving component according to claim 6, characterized in that, There are three connecting rods (41), and the connecting rods (41) are connected in sequence to form an unclosed structure; The two outermost connecting rods (41) are respectively connected to the excitation part (2) and the first fixing part (5); The pusher (3) is connected to the connecting rod (41) located in the middle.

10. The driving component according to claim 6, characterized in that, There are four or more connecting rods (41), and multiple connecting rods (41) are connected end to end to form a closed polygonal structure; Along the first direction L, the excitation part (2) and the first fixing part (5) are respectively connected to the connecting end, and along the second direction, the pushing part (3) is connected to the connecting end; or, Along the first direction L, the excitation part (2) and the first fixing part (5) are respectively connected to the connecting rod (41), and along the second direction W, the pushing part (3) is connected to the connecting rod (41).

11. The drive assembly according to any one of claims 6-10, characterized in that, Multiple connecting rods (41) are integrally formed.

12. The drive assembly according to any one of claims 1-10, characterized in that, Along the second direction W, the pushing part (3) is a protruding structure extending from the vibrating part (4), and the protruding structure can push the driven member (6) to reciprocate along the first direction L.

13. The drive assembly according to any one of claims 1-10, characterized in that, The active component also includes a second fixing part (1) for enabling the vibration generated by the excitation part (2) to act on the vibration part (4). Along the first direction L, the second fixing part (1) is connected to the side of the excitation part (2) away from the vibration part (4), and the distance between the first fixing part (5) and the second fixing part (1) is fixed.

14. The drive assembly according to any one of claims 1-10, characterized in that, The excitation unit (2) includes: Body (21), which is used to connect the vibrating part (4); A driving component, which is connected to the body (21) and is used to drive the body (21) to vibrate in a single phase; The driving component has a preset vibration frequency. Under the action of the preset vibration frequency, the vibration of the body (21) can cause the vibration part (4) to vibrate at least along the first direction L and the second direction W.

15. The driving component according to claim 14, characterized in that, Along the second direction W, the drive member is connected to at least one side of the body (21).

16. The driving component according to claim 14, characterized in that, The driving component includes: A deformable part (22) is connected to the main body (21), and the deformable part (22) can deform when energized; The energized part (23) is connected to the deformable part (22), and the electricity generated by the energized part (23) can be conducted to the deformable part (22). The energized part (23) can generate an electric field with the preset vibration frequency, and the deformable part (22) deforms under the action of the electric field, thereby causing the main body to vibrate.

17. The driving component according to claim 15, characterized in that, The main body (21), the vibrating part (4), and the first fixing part (5) are integrally formed.

18. A motor, characterized in that, The motor includes a drive assembly, which is the drive assembly according to any one of claims 1-17.

19. A terminal, characterized in that, Includes a motor, wherein the motor is the motor described in claim 18.

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