Drive Exciter and Electronics

Abstract

The driving exciter proposed by the present invention includes a housing provided with a storage cavity, a housing fixed in the storage cavity and having a vibration cavity formed therein, a vibration part including a vibrator provided vibratably in the vibration cavity, a driver fixed in the storage cavity, and a braking part including a braking assembly connected to the output end of the driver. Here, the driver drives the braking assembly away from or close to the vibration part such that the braking assembly is provided at an interval from the vibrator or the braking assembly is elastically abutted against the vibrator. The technical solution of the present application can greatly expand the asymmetry of anisotropic vibration and discretely present asymmetric vibration in a short time. By generating vibration close to the actually generated asymmetric vibration force, a clear sense of force in a certain direction can be discretely presented in a short time. Since the direction of this sense of force depends on the contact direction between the braking assembly and the vibrator, it is no longer limited to the gripping method.

Description

[Technical Field]

[0001] The present invention relates to the technical field of vibration devices, and in particular to drive exciters and electronic devices. [Background technology]

[0002] Conventional vibration devices create the illusion of a directional force by constantly generating asymmetric vibrations. However, to create this illusion, not only does it require shear deformation of the skin, limiting the gripping method of the device, but it also requires that the vibration frequency be limited to a range that is easily detected, and that the stimulation be sustained for a certain period of time.

[0003] Currently, one method for recreating the sensation of force involves inputting an asymmetric signal into a linear resonator to create an illusion using human senses. This method can only generate a continuous, directional sense of force, and is unable to achieve discrete vibration output. The equivalent force felt with this method is small, and the asymmetric signal also generates extra vibrations, making it difficult to obtain a clear sense of direction.

[0004] In view of the above, conventional vibration devices have many limitations in practical applications, including but not limited to the above problems. Summary of the Invention [Problem to be solved by the invention]

[0005] The primary object of the present invention is to provide a drive exciter that is intended to discretely exhibit clear and well-defined anisotropic vibrations. [Means for solving the problem]

[0006] In order to achieve the above object, the driving exciter proposed by the present invention comprises: a housing in which a storage cavity is provided; a vibration unit including a housing fixed in the storage cavity and having a vibration cavity formed therein, and a vibrator provided in the vibration cavity so as to be able to vibrate; a braking unit including a driver fixed in the accommodating cavity and a braking assembly connected to an output end of the driver; Here, the driver drives the brake assembly away from or close to the vibrating part so that the brake assembly is spaced apart from the vibrator or so that the brake assembly is elastically abutted against the vibrator.

[0007] In one embodiment of the invention, the braking assembly comprises: a transmission member connected to an output end of the driver; The transmission member includes a damper provided on a surface facing the vibrating portion and adapted to come into contact with the vibrator.

[0008] In one embodiment of the present invention, the brake is a spring; Alternatively, the brake shoe is made of rubber, Alternatively, the brake shoe is a foam, Alternatively, the brake shoe is configured by providing at least two of a spring, rubber, and foam in series or in parallel.

[0009] In one embodiment of the present invention, a rotation shaft is provided on the driver, one end of the transmission member is connected to the rotation shaft, an axial direction of the rotation shaft is parallel to a vibration direction of the vibrator, and the brake is provided on one end of the transmission member away from the rotation shaft, Alternatively, the driver drives the transmission member to move linearly, and is provided so that the direction of movement of the transmission member and the direction of vibration of the vibrator form an angle.

[0010] In one embodiment of the present invention, the vibrator comprises: two spring pieces connected to the housing and provided on opposite sides of the housing; a vibrator that is vibratably provided in the vibration cavity and has both ends connected to the two spring pieces, The brake assembly is spaced apart from or resiliently abuts against the spring piece.

[0011] In one embodiment of the present invention, the vibrating portion is one of the spring pieces closer to the brake assembly; The brake assembly further includes a buffer material provided on a side facing the brake assembly and having a center coaxial with the center of the spring piece.

[0012] In one embodiment of the present invention, the driver is a two-axis motor, and the brake assemblies include two, and the two output ends of the driver are connected to one of the brake assemblies, and the two brake assemblies are arranged offset in the axial direction of the driver.

[0013] In one embodiment of the present invention, the driving exciter includes at least one damping part and at least two vibration parts, and the damping assembly of one damping part is provided corresponding to at least one vibration part.

[0014] In one embodiment of the present invention, at least one mounting base is protrudingly provided on a cavity wall of the receiving cavity, and the at least one mounting base divides the receiving cavity into at least two sub-cavities; A plurality of support ribs are protruded from the cavity wall of the sub-cavity, and the side edges of the support ribs are recessed to form mounting grooves. A braking groove is formed between the support ribs and the inner wall of the receiving cavity. The vibration portion is disposed within the mounting groove, and the brake assembly is movably disposed within the brake groove.

[0015] The present invention further relates to an electronic device including a drive exciter according to any one of the above embodiments. [Effects of the Invention]

[0016] The technical solution of the present application involves a movably mounted damping assembly that is brought into discrete or spaced contact with the vibrating part, thereby damping the vibrating part and generating anisotropic vibrations. Since the generation of anisotropic vibrations requires the damping part and the vibrating part to be fitted together, the frequency at which vibrations are generated depends on the frequency at which the damping assembly moves and comes into contact with the vibrating part. Therefore, when the damping assembly constantly moves and constantly switches between a spaced installation state or a contact state between the damping assembly and the vibrating part, anisotropic vibrations can be generated discretely.

[0017] The technical solution of the present application significantly expands the asymmetry of anisotropic vibration and can present asymmetric vibrations discretely in a short time. By generating vibrations that are close to the asymmetric vibration force that actually occurs, it is possible to present a clear sense of force in a certain direction discretely in a short time. The direction of this sense of force depends on the contact direction between the damping assembly and the vibrator, so it is not limited by the gripping method. [Brief explanation of the drawings]

[0018] In order to more clearly describe the embodiments of the present invention or the technical solutions in the existing technology, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the existing technology. It is obvious that the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other accompanying drawings based on the structures shown in these accompanying drawings without any creative efforts. [Figure 1] 1 is a structural schematic diagram of an embodiment of a driving exciter of the present invention; [Figure 2] 1 is a schematic diagram of a part of the structure of an embodiment of a driving exciter of the present invention; [Figure 3] FIG. 3 is an enlarged schematic view of a portion A in FIG. 2. [Figure 4] 1 is an exploded structural schematic diagram of a vibration part of an embodiment of a drive exciter of the present invention. [Figure 5] 1 is a structural schematic diagram of a housing of an embodiment of a driving exciter of the present invention; [Figure 6] FIG. 10 is a structural schematic diagram of yet another embodiment of the driving exciter of the present invention; [Figure 7] FIG. 2 is a schematic diagram of the energy storage stage of one embodiment of the drive exciter of the present invention. [Figure 8] 1 is a schematic diagram of the translation stage of one embodiment of the drive exciter of the present invention; [Figure 9] FIG. 2 is a schematic diagram of the damping stage of one embodiment of the drive exciter of the present invention. [Figure 10] FIG. 2 is a schematic diagram of the return stage of one embodiment of the drive exciter of the present invention.

[0019] The realization of the objects, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following clearly and completely describes the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts fall within the protection scope of the present invention.

[0021] It should be noted that all directional indications (e.g., up, down, left, right, front, back, etc.) in the embodiments of the present invention are used only to explain the relative positional relationships, movement, etc. between each part in a specific posture (as shown in the drawings), and if the specific posture changes, the directional indications also change accordingly.

[0022] Furthermore, in this invention, descriptions such as "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or suggesting the relative importance or the number of the indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one of the features. Furthermore, the technical solutions in each embodiment may be combined with each other, but this must be based on what a person skilled in the art can achieve. If the combination of technical solutions contradicts or is not feasible, it should be considered that such combination of technical solutions does not exist and is not included in the scope of protection claimed by this invention.

[0023] "Anisotropic vibration," also known as "asymmetric vibration," is achieved by inputting an asymmetric signal into a vibration device such as a vibration motor, which generates a sensation of being pulled in a certain direction in the user holding the vibration device.Vibration devices that can achieve anisotropic vibration are often used in devices such as game controllers, and the asymmetric vibration provides good feedback to the user.

[0024] In the vibration device according to the technical solution of the present application, the so-called "discrete" is a concept opposite to "sustained." For example, after one excitation, the vibration motor continues to vibrate, causing the vibration device to output a continuous vibration, which causes the user to feel a sense of vibration or tension that continues for a certain period of time, which is a continuous vibration. On the other hand, if the vibration device outputs one or more vibrations in a clear direction at intervals within a certain period of time, it is a discrete anisotropic vibration.

[0025] In addition, conventional vibration devices have a small equivalent force, so in order for the user to feel the vibration reliably and to generate a tensile sensation, it is often necessary to continuously output vibration within a certain frequency range. Elastic pieces are connected to both ends of the vibrator of the vibration motor, and even with only one excitation, after a relatively strong vibration of the vibrator, the action of the elastic pieces generates after-vibration in the vibration motor.

[0026] 1 to 10, in order to achieve the purpose of discretely presenting clear anisotropic vibrations, the driving exciter 100 proposed by the present invention includes a housing 10 having a storage cavity 10a, a housing 33 fixed in the storage cavity 10a and having a vibration cavity 33a formed therein, a vibration unit 30 including a vibrator 35 arranged to be able to vibrate in the vibration cavity 33a, and a damping unit 50 including a driver 51 fixed in the storage cavity 10a and a damping assembly 53 connected to the output end of the driver 51, wherein the driver 51 drives the damping assembly 53 away from or close to the vibration unit 30 so that the damping assembly 53 is arranged at a distance from the vibrator 35 or is elastically abutted against the vibrator 35.

[0027] In one embodiment, the outer contour of the housing 10 is substantially columnar, with a hollow storage cavity 10a formed inside, and the vibrating unit 30 is configured with a structure that can mechanically store energy, and for example, the vibrating unit 30 may be a linear resonator that has an oscillator 35 that vibrates along a certain direction inside. As can be understood, the oscillator 35 has a certain mass so as to have sufficient energy when vibrating.

[0028] Optionally, in this embodiment, the driver 51 may be a driving device such as a linear motor, a spiral tube, a linear motor, and a rotary motor, and the driver 51 drives the brake assembly 53 to translate or rotate toward or away from the vibration part 30.

[0029] Optionally, the damping assembly 53 may be configured with a damper to damp the oscillator 35 and generate the oscillatory waves.

[0030] Referring to FIGS. 6-10, in one embodiment, the following steps are required for the drive exciter 100 to generate one complete anisotropic oscillation: Energy storage step: Referring to FIG. 7, an electric driving signal is input to the vibration unit 30, an excitation magnetic field is generated in the vibration cavity 33a, and the vibrator 35 is driven to vibrate continuously to store energy. Moving stage: Referring to FIG. 8, the driver 51 drives the damping assembly 53 to move into the vibration path of the vibrator 35, during which the damping assembly 53 does not interfere with the vibration of the vibrator 35; Braking step: Referring to FIG. 9, the braking assembly 53 is brought into contact with the vibrating part 30, brakes the vibrator 35, and receives energy from the vibration of the vibrator 35, thereby generating anisotropic vibration and generating a pulling or force sensation in the normal direction of the contact surface between the two. Return Phase: Referring to FIG. 10, after one anisotropic vibration occurs, the driver 51 drives the brake assembly 53 to reset and wait for the next trigger, and the anisotropic vibration stops.

[0031] As can be understood, in this embodiment, the generation of anisotropic vibration is not caused by vibration of the vibrating part 30 itself, but is caused by the engagement of the damping part 53 with the vibrating part 30; that is, the damping assembly 53 damps the vibrating part 30 to generate anisotropic vibration, and when the damping assembly 53 moves away from the vibrating part 30, the anisotropic vibration stops.

[0032] Through the above steps, the drive exciter 100 can generate a single anisotropic vibration, and by repeating the above process multiple times in a certain period of time, it is possible to generate multiple discrete anisotropic vibrations. Furthermore, the frequency at which the anisotropic vibration is generated can be controlled by controlling the movement frequency of the damping assembly 53, and the magnitude of the anisotropic vibration can be changed by changing parameters such as the mass of the vibrator 35.

[0033] The technical solution of the present application is to brake the vibrating part 30 by discretely or at intervals contacting the vibrating part 30 with a movably mounted damping assembly 53, thereby generating anisotropic vibrations. Since the generation of the anisotropic vibrations requires the damping part 50 and the vibrating part 30 to be fitted together, the frequency at which the vibrations are generated depends on the frequency at which the damping assembly 53 moves and contacts the vibrating part 30. Therefore, when the damping assembly 53 constantly moves and constantly switches the vibrating part 30 between a spaced installation state or an abutting state, anisotropic vibrations can be generated discretely.

[0034] The technical solution of the present application significantly increases the asymmetry of the anisotropic vibration and can present asymmetric vibrations discretely in a short time. Furthermore, by generating vibrations that are similar to the asymmetric vibration force that actually occurs, it is possible to present a clear sense of force in a certain direction discretely in a short time. The direction of the sense of force depends on the contact direction between the damping assembly 53 and the vibrating unit 30, and is therefore not limited by the gripping method.

[0035] 2 and 3, in one embodiment of the present invention, the brake assembly 53 includes a transmission member 531 connected to the output end of the driver 51, and a brake 533 provided on the surface of the transmission member 531 facing the vibrating part 30 and for contacting the vibrator.

[0036] In this embodiment, the brake unit 50 is provided on one side of the driver, and specifically, the brake unit 50 further includes a connecting piece that encases the driver 51 and is connected to the housing 10 by a bolt, and the driver 51 is fixed in the storage cavity 10a by the connecting tool. When the driver 51 receives a signal, the driver 51 drives and moves the transmission member 531, and brings the brake 533 into contact with the vibrator 35 or moves the brake 533 away from the vibrator 35.

[0037] The transmission member 531 is made of a structural material with a certain strength and rigidity, so as to provide good structural support for the brake 533, ensure structural stability and obtain good braking effect.

[0038] Optionally, in one embodiment of the present invention, the damper 533 is a spring, or the damper 533 is rubber, or the damper 533 is foam, or the damper 533 is configured by at least two of the spring, rubber and foam arranged in series or in parallel, that is, two or three of the spring, rubber and foam are arranged with their ends connected sequentially to obtain a good damping effect, or are arranged in parallel to damp the vibrator 35 and ensure the stability of the structure.

[0039] By adopting the above-mentioned material and structure having a certain degree of elasticity, when the brake 533 contacts the vibrating part 30, it has a good damping effect and can protect the brake part 50 and the vibrating part 30 to a certain extent.

[0040] 2 , in one embodiment of the present invention, a rotating shaft is provided in the driver 51, one end of a transmission member 531 is connected to the rotating shaft, the axial direction of the rotating shaft is parallel to the vibration direction of the vibrator 35, and a brake 533 is provided at one end of the transmission member 531 away from the rotating shaft. Specifically, in this embodiment, the driver 51 is a rotary motor, and the transmission member 531 is a substantially L-shaped structure, one end of the transmission member 531 is connected to the rotating shaft by an interlocking structure, and the other end of the transmission member 531 is provided adjacent to the vibrating unit 30. When the driver 51 receives a predetermined signal, the rotating shaft drives the transmission member 531 to rotate, and the transmission member 531 moves toward or away from one side of the vibrating unit 30 until the brake 533 abuts against the vibrator 35 or until the brake 533 is detached from the vibrator 35.

[0041] In another embodiment of the present invention, the driver 51 drives the transmission member 531 to move linearly, and the direction of movement of the transmission member 531 forms an angle with the vibration direction of the vibrator 35. Alternatively, the driver 51 may be a linear motor, which includes a stator fixed in the receiving cavity 10a and a mover that slides with the stator and moves along a straight line, and the transmission member 531 is connected to the mover.

[0042] Preferably, the line along which the transmission member 531 moves and the line along which the vibrating element 35 vibrates form an angle of 90 degrees. This provides a simple and effective structure, and the generation and transmission of vibrations are relatively clear, resulting in good results.

[0043] Of course, the driving member 51 may have other structural forms that can realize the above technical concept, and is not particularly limited here. Accordingly, the structure of the transmission member 531 may be changed according to the structural form and spatial arrangement of the driving member 51, and is not limited thereto.

[0044] Referring to Figures 3 and 4, in one embodiment of the present invention, the vibrator 35 includes two spring pieces 351 connected to the housing 33 and respectively provided on opposite sides of the housing 33, and a vibrator 353 vibratably provided within the vibration cavity and connected at both ends to the two spring pieces 351, and the damping assembly 53 is provided at a distance from or elastically abuts against the spring pieces 351.

[0045] In this embodiment, the housing 33 is substantially cylindrical, and the outer contour of the spring strip 351 is accordingly substantially circular. The spring strip 351 is provided with a spiral openwork to increase the elasticity of the spring strip 351. Openings communicating with the vibration cavity 33a are provided on opposite sides of the housing 33. The spring strip 351 seals the openings, and the end of the vibrator 353 is connected to the center of the spring strip 351. The vibrator 353 drives the spring strip 351 to vibrate simultaneously with vibration, storing the generated energy within the spring strip 351. When the brake assembly 53 contacts the spring strip 351, the stored energy is released to the brake 533, generating a vibration wave. Because the brake 533 is located on one side of the spring strip 351, the generated vibration is also on one side. Due to the characteristics of the brake 533, it is significantly differentiated from the spring strip 351, resulting in a more pronounced asymmetry. In other words, the feeling of pulling in a certain direction is realistic and does not depend on the user's gripping method or sensory experience.

[0046] 3 and 4, in one embodiment of the present invention, the vibrating unit 30 further includes a buffer 31 disposed on the side of the spring piece 351 adjacent to the damping assembly 53 facing the damping assembly 53, with the center of the buffer 31 being coaxial with the center of the spring piece 351. The buffer 31 is disposed on one side of the vibrating unit 30 to protect the hardware and achieve good vibration transmission. Generally, the vibrator 35 is connected to the center of the spring piece 351, which is often the part with the largest amplitude and most intense vibration. By disposing the buffer 31 at the center, good buffering and vibration reduction effects can be achieved, and the structure of the vibrating unit 30 can be protected to some extent. Depending on the characteristics of the damper 533 and the buffer 31, they can be significantly differentiated from the spring piece 351, resulting in a more pronounced asymmetry.

[0047] In some embodiments of the present invention, the cushioning material 31 is a spring, or the cushioning material 31 is rubber, or the cushioning material 31 is foam, or the cushioning material 31 is configured with at least two of the spring, rubber, and foam arranged in series or parallel.

[0048] In some embodiments of the present invention, a coil is fixedly mounted in the center of the vibration cavity 33a, and the vibrator 353 includes a mass and four permanent magnets. The mass has a hollow guide groove that encircles a line segment. Two of the four permanent magnets are mounted on each mass, with two sets of permanent magnets on either side of the coil, and the magnetic poles of each set of permanent magnets are oriented in opposite directions. When a magnetic field is generated by passing current through the coil, the mass moves due to the action of the magnetic field, changing the magnetic field and the direction of movement of the mass. Furthermore, magnetically conductive plates are further mounted on the mass and the inner wall of the vibration cavity 33a to reduce magnetic flux leakage and improve magnetic field utilization efficiency.

[0049] In another embodiment, a permanent magnet may be fixed, a coil may be fitted to the mass, and a magnetic field may be generated by passing current through the coil, and the mass may be moved by the action of the magnetic field. Of course, the installation form and driving method of the vibrator 35 are not limited to this, and will not be further described here.

[0050] Referring to FIG. 2, in one embodiment of the present invention, the driver 51 is a two-axis motor, and includes two brake assemblies 53, with the two output ends of the driver 51 connected to one brake assembly 53 respectively, and the two brake assemblies 53 being offset in the axial direction of the driver 51.

[0051] In this embodiment, the two output ends of the biaxial motor are coaxial, one transmission member 531 is connected to each output end, one vibrating unit 30 is provided near each transmission member 531, the transmission members 531 are approximately L-shaped, one end of the transmission member 531 is connected to the rotating shaft by an interlocking structure, the other end of the transmission member 531 is provided near the vibrating unit 30, both transmission members 531 are vertical, and when observing the brake assemblies 53 along the axis of the output ends of the biaxial motor, the two transmission members 531 are provided at an angle. In this way, when the motor rotates, only one brake 533 abuts on one vibrating unit 30 at a time, but when the driver 51 rotates by the same angle, the two brake assemblies 53 abut on the vibrating unit 30 sequentially. That is, by providing such an arrangement, the frequency at which anisotropic vibration is generated can be increased, improving efficiency.

[0052] In another embodiment of the present invention, the brake assemblies 53 may be arranged in parallel or on the same plane, i.e., when the driver 51 rotates, the two brake assemblies 53 are respectively brought into contact with the two vibrating units 30 at the same time. In this way, the two brake assemblies 53 and the two vibrating units 30 are simultaneously engaged or disengaged, and the anisotropic vibrations generated by the two brake assemblies 53 and the two vibrating units 30 are superimposed to generate a stronger sense of force and a clearer sense of vibration.

[0053] Alternatively, the two braking assemblies 53 are driven independently by two drivers 51, and various vibration effects can be obtained by controlling signals so that the two braking assemblies 53 are coupled to the vibration unit 30 simultaneously or sequentially.

[0054] Of course, in other embodiments of the present invention, the driving exciter 100 includes at least one damping unit 50 and at least two vibrating units 30, and the damping assembly 53 of one damping unit 50 is provided corresponding to at least one vibrating unit 30. In other words, by applying the principles described in the above embodiments to ensure that one damping assembly 53 corresponds to at least one vibrating unit 30, multiple damping units 50 and multiple vibrating units 30 can be mated to generate a variety of discrete anisotropic vibration effects.

[0055] 1, 2 and 5, in one embodiment of the present invention, at least one mounting base 11 is protruded from the cavity wall of the storage cavity 10a, and the at least one mounting base 11 divides the storage cavity 10a into at least two sub-cavities, and a plurality of support ribs 13 are protruded from the cavity wall of the sub-cavities, and the sides of the support rib 13 are recessed to form mounting grooves 13a, and braking grooves 13b are formed between the support rib 13 and the inner wall of the storage cavity 10a, and the vibrating part 30 is installed in the mounting groove 13a, and the braking assembly 53 is movably installed in the braking grooves 13b.

[0056] 5, in this embodiment, the housing 33 of the vibrating part 30 is cylindrical, and the side edges of the support rib 13 are accordingly arcuate, so that the housing 33 is fitted into the mounting groove 13a and abuts against the side edges of the support rib 13. One side of the support rib 13 is spaced apart from the cavity wall of the receiving cavity 10a to form a brake groove 13b, and the brake assembly 53 moves in and out of the brake groove 13b rotatably or linearly.

[0057] The structures of the mounting groove 13a and the braking groove 13b of the adjacent sub-cavities may be provided symmetrically or on the same side, and the specifics may vary depending on the actual situation, but are not limited here any further.

[0058] The present invention further relates to an electronic device including the driving exciter 100 of any one of the above embodiments, and the specific structure of the driving exciter 100 refers to the above embodiments. Since the electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and therefore will not be further described herein.

[0059] Here, in some applications of the drive exciter 100, the electronic device may be a haptic device such as a steering wheel or a VR all-in-one.

[0060] The above is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and accompanying drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application to other related technical fields, is also included in the patent protection scope of the present invention. [Explanation of symbols]

[0061] 100 Drive Exciter 10. Cabinet 10a Storage cavity 11 Mounting base 13 Support rib 13a Mounting groove 13b Braking groove 30 Vibration unit 31 Cushioning material 33 Housing 33a Vibration cavity 35 oscillator 351 Spring piece 353 Oscillator 50 Braking part 51 Driver 53 Brake Assembly 531 Transmission parts 533 Brake element

Claims

1. a housing in which a storage cavity is provided; a vibration unit including a housing fixed in the storage cavity and having a vibration cavity formed therein, and a vibrator provided in the vibration cavity so as to be able to vibrate; a braking unit including a driver fixed in the accommodating cavity and a braking assembly connected to an output end of the driver; Here, the driver exciter is characterized in that the driver drives the brake assembly away from or close to the vibrating part so that the brake assembly is spaced apart from the vibrator or is elastically abutted against the vibrator.

2. The brake assembly includes: a transmission member connected to an output end of the driver; 2. The driving exciter according to claim 1, further comprising: a damper provided on a surface of the transmission member facing the vibrating portion, the damper being adapted to abut against the vibrator.

3. the brake is a spring, Alternatively, the brake shoe is made of rubber, Alternatively, the brake shoe is a foam, Alternatively, the brake is configured by providing at least two of a spring, rubber, and foam in series or in parallel.

4. a rotation shaft is provided on the driver, one end of the transmission member is connected to the rotation shaft, the axial direction of the rotation shaft is parallel to the vibration direction of the vibrator, and the brake is provided at one end of the transmission member away from the rotation shaft, Alternatively, the driver exciter according to claim 2, wherein the driver drives the transmission member to move linearly, and the direction of movement of the transmission member and the direction of vibration of the vibrator form an angle.

5. The vibrator is two spring pieces connected to the housing and provided on opposite sides of the housing; a vibrator that is vibratably provided in the vibration cavity and has both ends connected to the two spring pieces, 2. The driver exciter of claim 1, wherein the brake assembly is spaced apart from or resiliently abuts the spring piece.

6. 6. The drive exciter according to claim 5, wherein the vibration section further includes a buffer material provided on one of the spring pieces closest to the brake assembly, on a side facing the brake assembly, and whose center is coaxial with the center of the spring piece.

7. 2. The driving and exciter according to claim 1, wherein the driving element is a two-axis motor, the braking assemblies include two, two output ends of the driving element are connected to one of the braking assemblies, and the two braking assemblies are arranged offset in the axial direction of the driving element.

8. The drive exciter according to any one of claims 1 to 7, characterized in that the drive exciter includes at least one damping unit and at least two vibration units, and the damping assembly of one damping unit is provided corresponding to at least one vibration unit.

9. At least one mounting base is protruding from a cavity wall of the storage cavity, and the at least one mounting base divides the storage cavity into at least two sub-cavities; A plurality of support ribs are protruded from the cavity wall of the sub-cavity, and the side edges of the support ribs are recessed to form mounting grooves. A braking groove is formed between the support ribs and the inner wall of the receiving cavity.

8. A drive exciter according to claim 1, wherein the vibration part is mounted in the mounting groove, and the damping assembly is movably mounted in the damping groove.

10. An electronic device comprising the drive exciter according to any one of claims 1 to 7.

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