Drive exciter and electronic device

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 particularly to drive exciters and electronic devices.

Background Art

[0002] Conventional vibration devices continuously produce asymmetric vibrations to create an illusion of a force acting "as if in a certain direction." However, to cause such an illusion, not only is the gripping method of the device limited by shearing the skin, but it is also necessary to limit the vibration frequency to a range where it is easy to perceive, and the stimulus must be sustained for a certain period of time.

[0003] As a means of reproducing the sense of force, there is currently a method of inputting an asymmetric signal into a linear resonator and creating an illusion using the human sense. In principle, this method can only generate a continuous directional sense of force and cannot achieve discrete vibration output. The equivalent force felt by this method is small, and the asymmetric signal also generates extra vibrations, making it difficult to obtain a clear sense of direction.

[0004] From the above, conventional vibration devices have many limitations in actual applications that are not limited to the above problems.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The main object of the present invention is to provide a drive exciter intended to discretely present clear and distinct anisotropic vibrations.

Means for Solving the Problems

[0006] To achieve the above object, the drive exciter proposed by the present invention includes a housing provided with a storage cavity, a vibration part including a housing fixed in the storage cavity and having a vibration cavity formed therein, and a vibrator provided vibratably in the vibration cavity. A braking part including a driver fixed in the storage cavity and a braking assembly connected to the output end of the driver. Here, the driver drives the braking assembly away from or close to the vibrating part so that the braking assembly is provided at an interval from the vibrator or the braking assembly is elastically abutted against the vibrator.

[0007] In one embodiment of the present invention, the braking assembly includes a transmission member connected to the output end of the driver, and a brake provided on the surface of the transmission member facing the vibrating part and abutting against the vibrator.

[0008] In one embodiment of the present invention, the brake is a spring, or the brake is rubber, or the brake is foam, or the brake is composed of at least two of a spring, rubber and foam provided in series or in parallel.

[0009] In one embodiment of the present invention, a rotating shaft is provided on the driver, one end of the transmission member is connected to the rotating shaft, the axial direction of the rotating shaft is parallel to the vibrating direction of the vibrator, and the brake is provided at one end of the transmission member away from the rotating shaft. Or the driver drives the transmission member to move linearly, and the moving direction of the transmission member and the vibrating direction of the vibrator are provided at an angle.

[0010] In one embodiment of the present invention, the vibrator includes two spring pieces connected to the housing and respectively provided on opposite sides of the housing, and a vibrator provided in the vibration cavity so as to be vibratable, and both ends thereof are respectively connected to the two spring pieces. The braking assembly is provided at an interval from or elastically abutted against the spring piece.

[0011] In one embodiment of the present invention, the vibration part further includes a buffer member provided on a side of one of the spring pieces facing the braking assembly, and the center thereof is provided coaxially with the center of the spring piece.

[0012] In one embodiment of the present invention, the driver is a biaxial motor, the braking assembly includes two, two output ends of the driver are respectively connected to one of the braking assemblies, and the two braking assemblies are provided offset in the axial direction of the driver.

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

[0014] In one embodiment of the present invention, at least one mounting base protrudes from the cavity wall of the storage cavity, and at least one of the mounting bases divides the storage cavity into at least two sub-cavities. A plurality of support ribs protrude from the cavity wall of the sub-cavity, the side of the support rib is recessed to form a mounting groove, and a braking groove is formed between the support rib and the inner wall of the storage cavity. The vibration part is provided in the mounting groove, and the braking assembly is movably provided in the braking groove.

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

Effects of the Invention

[0016] The technical solution of the present application is that the vibration part is braked by being discretely or intermittently abutted against the vibration part by a braking assembly provided movably, so as to generate anisotropic vibration. Since the generation of the anisotropic vibration requires the fitting of the braking part and the vibration part, the frequency at which the vibration occurs depends on the frequency at which the braking assembly moves and abuts against the vibration part. Therefore, when the braking assembly continuously moves and continuously switches the intermittent installation state or abutting state between the braking assembly and the vibration part, anisotropic vibration can be discretely generated.

[0017] The technical solution of the present application can greatly expand the asymmetry of the anisotropic vibration and discretely present the 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 abutting direction between the braking assembly and the vibrator, it is no longer limited to the gripping method.

Brief Description of the Drawings

[0018] To more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the attached drawings that need to be used in the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are only some embodiments of the present invention. For those skilled in the art, based on the structures shown in these attached drawings, other attached drawings can also be obtained without creative effort.

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[0019] The realization, functional features and advantages of the present invention will be further described by combining with embodiments and referring to the accompanying drawings.

Modes for Carrying Out the Invention

[0020] The following clearly and completely describes the technical solutions in the embodiments of the present invention while combining 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 embodiments. All other embodiments obtained by those skilled in the art on the premise of not paying creative labor based on the embodiments in the present invention belong to the protection scope of the present invention.

[0021] In addition, all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement between each component in a specific posture (as shown in the drawings). When the specific posture changes, the directional indications also change accordingly.

[0022] In addition, in the present invention, descriptions related to "first", "second", etc. are only used for the purpose of description and should not be understood as indicating or suggesting their relative importance or implicitly indicating the number of the specified technical features. Thus, features limited to "first" and "second" can explicitly or implicitly include at least one such feature. Also, the technical solutions between the respective embodiments can be combined with each other, but this must be based on what can be achieved by those skilled in the art. If contradictions occur or the combination of technical solutions cannot be realized in the combination of technical solutions, it should be considered that such a combination of technical solutions does not exist and is not included in the scope of protection required by the present invention.

[0023] "Anisotropic vibration", also called "asymmetric vibration", can be realized by inputting an asymmetric signal to a vibration device such as a vibration motor, etc., and generating a pulling feeling in a certain direction for a user holding the vibration device. A vibration device that can realize anisotropic vibration is often used in devices such as game controllers, and provides good feedback to the user through asymmetric vibration.

[0024] In the vibration device according to the technical solution of the present application, the so-called "discrete" is a concept relative to "continuous". For example, after one excitation, the vibration motor continuously outputs continuous vibration to the vibration device, making the user feel a continuous vibration feeling or pulling feeling for a certain period of time, resulting in continuous vibration. On the other hand, if the vibration device outputs vibration in a clear direction at intervals within a certain period of time once or multiple times, it becomes discrete anisotropic vibration.

[0025] In addition, since the equivalent force of a conventional vibration device is small, it is necessary for the user to surely feel the vibration, and in order to generate a pulling feeling, 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 once, aftershock occurs in the vibration motor due to the action of the elastic pieces.

[0026] Referring to FIGS. 1 to 10, in order to achieve the purpose of discretely presenting distinct anisotropic vibrations, the driving exciter 100 proposed by the present invention includes a housing 10 provided with a storage cavity 10a, a housing 33 fixed in the storage cavity 10a and having a vibration cavity 33a formed therein, and a vibration part 30 including a vibrator 35 vibratably provided in the vibration cavity 33a, and a brake part 50 including a driver 51 fixed in the storage cavity 10a and a brake assembly 53 connected to the output end of the driver 51. Here, the driver 51 drives the brake assembly 53 to move away from or close to the vibration part 30 such that the brake assembly 53 is provided at a distance from the vibrator 35 or the brake assembly 53 is elastically abutted against the vibrator 35.

[0027] In one embodiment, the outer contour of the housing 10 is substantially columnar, a storage cavity 10a is formed hollow therein, and the vibration part 30 is configured with a structure capable of mechanically storing energy. For example, the vibration part 30 may be a linear resonator provided with a vibrator 35 vibrating along a certain direction inside. As can be understood, the vibrator 35 has a certain mass so as to have sufficient energy during vibration.

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

[0029] Optionally, the brake assembly 53 may have a structure with a damper so as to brake the vibrator 35 and generate vibration waves.

[0030] Referring to FIGS. 6 to 10, in one embodiment, the following steps are required for the driving exciter 100 to generate one complete anisotropic vibration: Energy storage stage: Referring to FIG. 7, an electric driving signal is input to the vibration part 30, an excitation magnetic field is generated in the vibration cavity 33a to drive the vibrator 35 to vibrate continuously to store energy. Moving stage: Referring to FIG. 8, the driver 51 drives the braking assembly 53 to move into the vibration path of the vibrator 35. During this period, the braking assembly 53 does not interfere with the vibration of the vibrator 35. Braking stage: Referring to FIG. 9, the braking assembly 53 abuts against the vibrating part 30 to brake the vibrator 35. By receiving the energy generated by the vibration of the vibrator 35, anisotropic vibration is generated, and a tensile or force feeling in the normal direction of the contact surface between the two is generated. Return stage: Referring to FIG. 10, after one anisotropic vibration occurs, the driver 51 drives the braking 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 due to the vibration of the vibrating part 30 itself, but is caused by the fitting between the braking part 50 and the vibrating part 30. That is, the braking assembly 53 brakes the vibrating part 30 to generate anisotropic vibration, and the braking assembly 53 moves away from the vibrating part 30, and the anisotropic vibration stops.

[0032] Through the above several stages, the driving exciter 100 can generate one anisotropic vibration. By circulating the above process multiple times within a certain period of time, multiple anisotropic vibrations can be discretely generated. Furthermore, by controlling the moving frequency of the braking assembly 53, the frequency at which the anisotropic vibration occurs can be controlled, and by changing parameters such as the mass of the vibrator 35, the magnitude of the anisotropic vibration can be changed.

[0033] The technical solution of the present application is that the braking assembly 53 provided movably abuts against the vibrating part 30 discretely or intermittently, thereby braking the vibrating part 30 to generate anisotropic vibration. The generation of this anisotropic vibration requires the fitting between the braking part 50 and the vibrating part 30. Therefore, the frequency at which the vibration occurs depends on the frequency at which the braking assembly 53 moves and abuts against the vibrating part 30. Therefore, when the braking assembly 53 continuously moves and continuously switches the intermittent installation state or abutting state of the vibrating part 30, anisotropic vibration can be discretely generated.

[0034] The technical solution of the present application can greatly expand the asymmetry of anisotropic vibration and discretely present asymmetric vibration in a short time. Further, by generating vibration close to the actually generated asymmetric vibration force, a distinct 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 53 and the vibrating part 30, it is not limited to the gripping method.

[0035] Referring to FIGS. 2 and 3, in one embodiment of the present invention, the braking 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 for contacting the vibrator.

[0036] In this embodiment, the braking part 50 is provided on one side of the driving part. Specifically, the braking part 50 further includes a connecting piece that wraps around the driver 51 and is bolted to the housing 10, and the driver 51 is fixed in the storage cavity 10a by a connector. When the driver 51 receives a signal, the driver 51 drives the transmission member 531 to move, and makes the brake 533 contact the vibrator 35 or move the brake 533 away from the vibrator 35.

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

[0038] Optionally, in one embodiment of the present invention, the brake 533 is a spring, or the brake 533 is rubber, or the brake 533 is foam, or at least two of the spring, rubber and foam are provided in series or in parallel, that is, two or three of the spring, rubber and foam are sequentially connected end to end so as to obtain a good braking effect, or are provided in parallel so as to brake the vibrator 35 and ensure the structural stability.

[0039] By adopting the above-mentioned material and structure with a certain elasticity, when the brake 533 abuts against the vibrating part 30, it has a good braking effect and can protect the braking part 50 and the vibrating part 30 to a certain extent.

[0040] Referring to FIG. 2, in one embodiment of the present invention, the driver 51 is provided with a rotating shaft, one end of the 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 the 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 rotating motor, the transmission member 531 is a substantially L-shaped structure, one side of the transmission member 531 is connected to the rotating shaft by an interlocking structure, and the other side of the transmission member 531 is provided close to the vibrating part 30. When the driver 51 receives a predetermined signal, the rotating shaft drives the transmission member 531 to rotate until the brake 533 abuts against the vibrator 35 or until the brake 533 disengages from the vibrator 35, and the transmission member 531 approaches or moves away from one side of the vibrating part 30.

[0041] In an embodiment of another aspect of the present invention, the driver 51 drives the transmission member 531 to move linearly, and the moving direction of the transmission member 531 is provided to form an angle with the vibration direction of the vibrator 35. Optionally, the driver 51 may be a linear motor. The driver 51 includes a stator fixed in the storage cavity 10a and a mover that slidably engages with the stator and moves along a straight line, and the transmission member 531 is connected to the mover.

[0042] Preferably, the straight line in which the moving direction of the transmission member 531 is located and the straight line in which the vibration direction of the vibrator 35 is located are provided to form a 90-degree angle. In this way, the structure is simple and effective, the generation and transmission of vibration are relatively clear, and it has a good effect.

[0043] Of course, the driving member 51 may be in other structural forms capable of realizing the above technical concept, and is not particularly limited herein. 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.

[0044] Referring to FIGS. 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 both opposite sides of the housing 33, and a vibrator 353 provided vibratably in the vibration cavity with both ends connected to the two spring pieces 351 respectively. The braking assembly 53 is provided at a distance from or elastically abuts against the spring piece 351.

[0045] In this embodiment, the housing 33 is substantially cylindrical. Correspondingly, the outer contour of the spring piece 351 is substantially circular, and a spiral embossing is provided on the spring piece 351 to increase the elasticity of the spring piece 351. Openings communicating with the vibration cavity 33a are provided on both opposite sides of the housing 33. The spring piece 351 seals the opening, and the end of the vibrator 353 is connected to the center of the spring piece 351. The vibrator 353 drives the spring piece 351 to vibrate simultaneously with the vibration, stores the generated energy in the spring piece 351, and when the braking assembly 53 abuts against the spring piece 351, the stored energy is released to the brake 533 to generate a vibration wave. Since the brake 533 is provided on one side of the spring piece 351, the generated vibration is also on one side, and due to the characteristics of the brake 533, it is significantly different from the spring piece 351, resulting in more prominent asymmetry. That is, the sense of tension in a certain direction is real and does not depend on the user's gripping method or sensory experience.

[0046] Furthermore, referring to FIGS. 3 and 4, in one embodiment of the present invention, the vibration part 30 further includes a buffer 31 provided on the side of the spring piece 351 close to the braking assembly 53 and facing the braking assembly 53, and the center of the buffer 31 is provided coaxially with the center of the spring piece 351. In order to protect the hardware and achieve good vibration transmission, the buffer 31 is provided on one side of the vibration part 30. Generally, the vibrator 35 is often connected to the center of the spring piece 351, which is the part with the largest amplitude and the most intense vibration. By providing the buffer 31 at its center, good buffering and vibration damping effects can be obtained, and the structure of the vibration part 30 can be protected to a certain extent. Due to the characteristics of the brake 533 and the buffer 31, it is significantly different from the spring piece 351, resulting in more prominent asymmetry.

[0047] In embodiments of some aspects of the present invention, the buffer 31 is a spring, or the buffer 31 is rubber, or the buffer 31 is foam, or the buffer 31 is composed of at least two of a spring, rubber, and foam provided in series or in parallel.

[0048] In some embodiments of the present invention, a coil is fixedly provided at the center of the vibration cavity 33a. The vibrator 353 includes a mass and four permanent magnets. The mass forms a hollow guide groove that circumscribes a line segment. The four permanent magnets are provided on the mass in two sets of two. The two sets of permanent magnets are provided on both sides of the coil, and the magnetic poles of the two permanent magnets in the same set are provided in opposite directions. When an electric current is passed through the coil to generate a magnetic field, the mass moves under the action of the magnetic field, the magnetic field changes, and the moving direction of the mass also changes. Further, a magnetic conductive plate is further provided on the mass and the inner wall of the vibration cavity 33a to reduce magnetic flux leakage and improve the magnetic field utilization rate.

[0049] In other embodiments, the permanent magnet may be fixed, a coil may be embedded in the mass, an electric current may be passed through the coil to generate a magnetic field, 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 thereto and will not be further described herein.

[0050] Referring to FIG. 2, in an embodiment of the present invention, the driver 51 is a biaxial motor. The braking assembly 53 includes two. The two output ends of the driver 51 are respectively connected to one braking assembly 53, and the two braking assemblies 53 are provided offset in the axial direction of the driver 51.

[0051] In this embodiment, the two output ends of the biaxial motor are on the same axis. One transmission member 531 is connected to each output end, and one vibration part 30 is provided near each transmission member 531. The transmission member 531 is substantially L-shaped. One side of the transmission member 531 is connected to the rotating shaft by an interlocking structure, and the other side of the transmission member 531 is provided close to the vibration part 30. Both sides of the transmission member 531 are perpendicular. When observing the braking assembly 53 along the axis of the output end 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 contacts one vibration part 30 at the same time. However, when the driver 51 rotates by the same angle, the two braking assemblies 53 contact the vibration part 30 sequentially. That is, by providing in this way, the frequency of anisotropic vibration generation can be increased, and the efficiency can be improved.

[0052] In another embodiment of the present invention, the braking assemblies 53 may be provided in parallel or in the same plane. That is, when the driver 51 rotates, the two braking assemblies 53 contact the two vibration parts 30 respectively at the same time. In this way, the two braking assemblies 53 and the two vibration parts 30 are engaged or disengaged simultaneously, and by superimposing the anisotropic vibrations generated by both, a stronger sense of force can be generated, and the vibration feeling can be made clearer.

[0053] Alternatively, the two braking assemblies 53 are respectively independently driven by two drivers 51, and by signal control such that the two braking assemblies 53 are coupled to the vibration part 30 simultaneously or sequentially, various vibration effects can be obtained.

[0054] Of course, in other embodiments of the present invention, the drive exciter 100 includes at least one braking part 50 and at least two vibration parts 30. The braking assembly 53 of one braking part 50 is provided corresponding to at least one vibration part 30. That is, on the premise of ensuring that at least one braking assembly 53 corresponds to one vibration part 30, by applying the principle described in the above embodiment and fitting a plurality of braking parts 50 and a plurality of vibration parts 30, various discrete anisotropic vibration effects can be generated.

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

[0056] Referring to FIG. 5, in this embodiment, the housing 33 of the vibrating part 30 is cylindrical. Accordingly, the side edges of the support ribs 13 are provided in an arc shape. The housing 33 is fitted in the mounting groove 13a and abuts against the side edges of the support ribs 13. One of the support ribs 13 on one side is provided at a distance from the cavity wall of the storage cavity 10a to form the braking groove 13b. The braking assembly 53 rotates or linearly enters and exits the braking groove 13b.

[0057] The structures such as the mounting grooves 13a and the braking grooves 13b of adjacent sub-cavities are provided symmetrically or on the same side. Specifically, they vary depending on the actual situation, but are not further limited here.

[0058] The present invention further relates to an electronic device including the drive exciter 100 of any one of the above embodiments. The specific structure of the drive exciter 100 refers to the above embodiments. Since this electronic device adopts all the technical solution means of all the above embodiments, it has at least all the beneficial effects brought by the technical solution means of the above embodiments, so it will not be further described here.

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

[0060] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. Under the inventive concept of the present invention, equivalent structural conversions made using the content of the specification and the attached drawings of the present invention, or direct / indirect applications to other related technical fields, are all included within the scope of patent protection of the present invention.

Explanation of Reference Numerals

[0061] 100 Drive exciter 10 Housing 10a Storage cavity 11 Mounting base 13 Support rib 13a Mounting groove 13b Braking groove 30 Vibration part 31 Buffer material 33 Housing 33a Vibration cavity 35 Vibrator 351 Spring piece 353 Vibrator 50 Braking part 51 Driver 53 Braking assembly 531 Transmission member 533 Braking element

Claims

1. A housing provided with a storage cavity, a vibration unit including a housing fixed within the storage cavity and having a vibration cavity formed therein, and a vibrator provided to be vibrationally movable within the vibration cavity, a braking unit including a driver fixed within the storage cavity and a braking assembly connected to an output end of the driver, wherein the driver drives the braking assembly to move away from or close to the vibration unit such that the braking assembly is provided at a distance from the vibrator or is elastically abutted against the vibrator. A drive exciter characterized by this.

2. The braking assembly includes a transmission member connected to an output end of the driver, and a brake provided on a surface of the transmission member facing the vibration unit and abutting against the vibrator. The drive exciter according to claim 1, characterized by this.

3. The brake is a spring, or the brake is rubber, or the brake is foam, or the brake is constituted by at least two of a spring, rubber, and foam provided in series or in parallel. The drive exciter according to claim 2, characterized by this.

4. A rotating shaft is provided on the driver, one end of the transmission member is connected to the rotating shaft, an axial direction of the rotating shaft is parallel to a vibration direction of the vibrator, and the brake is provided at an end of the transmission member away from the rotating shaft, or the driver drives the transmission member to perform a linear movement, and the movement direction of the transmission member and the vibration direction of the vibrator are provided to form an angle. The drive exciter according to claim 2, characterized by this.

5. The vibrator includes two spring pieces connected to the housing and respectively provided on opposite sides of the housing, and a vibrator provided to be vibrationally movable within the vibration cavity and having both ends connected to the two spring pieces respectively, wherein the braking assembly is provided at a distance from or elastically abutted against the spring piece. The drive exciter according to claim 1, characterized by this.

6. The vibration unit further includes a buffer provided on a side of one of the spring pieces facing the braking assembly and having a center coaxially provided with a center of the spring piece. The drive exciter according to claim 5, characterized by this.

7. The driver is a biaxial motor, the braking assembly includes two, and two output ends of the driver are respectively connected to one of the braking assemblies, and the two braking assemblies are provided with an offset in the axial direction of the driver. The drive exciter according to claim 1, characterized in that.

8. The drive exciter includes at least one of the braking parts and at least two of the vibrating parts, and the braking assembly of one of the braking parts is provided corresponding to at least one of the vibrating parts. The drive exciter according to any one of claims 1 to 7, characterized in that.

9. At least one mounting base is convexly provided on the cavity wall of the storage cavity, and at least one of the mounting bases divides the storage cavity into at least two sub-cavities. A plurality of support ribs are convexly provided on the cavity wall of the sub-cavity, a mounting groove is formed by the side of the support rib being recessed, and a braking groove is formed between the support rib and the inner wall of the storage cavity. The vibrating part is provided in the mounting groove, and the braking assembly is movably provided in the braking groove. The drive exciter according to any one of claims 1 to 7, characterized in that.

10. An electronic device, characterized by including the drive exciter according to any one of claims 1 to 9.

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