WO2022242537A1 - Moteur à vibrations et dispositif électronique - Google Patents

Moteur à vibrations et dispositif électronique Download PDF

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Publication number
WO2022242537A1
WO2022242537A1 PCT/CN2022/092411 CN2022092411W WO2022242537A1 WO 2022242537 A1 WO2022242537 A1 WO 2022242537A1 CN 2022092411 W CN2022092411 W CN 2022092411W WO 2022242537 A1 WO2022242537 A1 WO 2022242537A1
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WO
WIPO (PCT)
Prior art keywords
structural member
piezoelectric
vibration
piezoelectric structural
vibration motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/092411
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English (en)
Chinese (zh)
Inventor
陈旭
蔡程
周瑜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Publication of WO2022242537A1 publication Critical patent/WO2022242537A1/fr
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
    • H02N2/001—Driving devices, e.g. vibrators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
    • H02K33/04—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
    • H02N2/005—Mechanical details, e.g. housings

Definitions

  • the application belongs to the technical field of communication equipment, and in particular relates to a vibration motor and electronic equipment.
  • the physical buttons in the electronic device can be replaced with virtual buttons, and a vibration motor can be configured so that when the virtual button is pressed, it can still have the pressing vibration of the physical button.
  • Current vibrating motors usually provide shock sensation by means of reciprocating motion of mass blocks connected with springs.
  • the vibrating motor Only when a larger amplitude can be generated, but the power supply frequency is not within the aforementioned range, the vibration amplitude of the vibration motor is relatively small, and the shock feeling is weak. Therefore, the frequency bandwidth of the current vibration motor is relatively small.
  • the purpose of the embodiments of the present application is to provide a vibrating motor and an electronic device to solve the problem that the frequency bandwidth of the current vibrating motor is relatively small.
  • the embodiment of the present application discloses a vibrating motor, which includes a housing, a mass, a first vibrating component and a second vibrating component, the first vibrating component and the second vibrating component are sandwiched between the between opposing first and second surfaces of the housing;
  • the first vibrating assembly includes a driver, the driver is mounted on the housing, and the driver cooperates with the mass block;
  • the second vibration component includes a piezoelectric structural member, and the piezoelectric structural member is connected to both the housing and the mass block;
  • the driving member When the driving member is energized, the driving member drives the mass to reciprocate between the first surface and the second surface; when the piezoelectric structural member is energized, the The piezoelectric structural member deforms and drives the mass to reciprocate between the first surface and the second surface.
  • an embodiment of the present application provides an electronic device, which includes the vibration motor described above.
  • Embodiments of the present application provide a vibration motor and electronic equipment.
  • the vibration motor includes a casing, a mass block installed in the casing, a first vibration assembly and a second vibration assembly, and both the first vibration assembly and the second vibration assembly are connected to the mass
  • the blocks are connected and matched, the first vibrating component includes a driving part, and the second vibrating component includes a piezoelectric structural part, and both the driving part and the piezoelectric structural part can drive the opposite first surface and the second opposite surface of the mass block in the casing in the energized state.
  • the reciprocating motion is performed between the two surfaces, so that the vibrating motor can provide the vibrating effect.
  • the part used to drive the movement of the mass in the second vibrating assembly is a piezoelectric structural member
  • the frequency of the piezoelectric structural member’s stretching and deformation is related to the frequency of the input electricity, and then it can be controlled by controlling the frequency of power transmission to the piezoelectric structural member.
  • the vibration frequency of the piezoelectric structural member which can expand the frequency bandwidth of the vibration motor.
  • FIG. 1 is a schematic structural diagram of a vibration motor disclosed in an embodiment of the present application
  • FIG. 2 is a schematic cross-sectional view of a vibration motor disclosed in an embodiment of the present application.
  • Fig. 3 is a schematic diagram of part of the structure of the vibration motor disclosed in the embodiment of the present application.
  • Fig. 4 is a schematic view of the structure shown in Fig. 3 in another direction;
  • Fig. 5 is a schematic diagram of a working state of the first vibrating component in the vibrating motor disclosed in the embodiment of the present application;
  • Fig. 6 is a schematic diagram of another state when the first vibration component in the vibration motor disclosed in the embodiment of the present application is working;
  • Fig. 7 is a schematic diagram of a working state of the second vibrating component in the vibrating motor disclosed in the embodiment of the present application;
  • Fig. 8 is a schematic diagram of another working state of the second vibrating assembly in the vibrating motor disclosed in the embodiment of the present application.
  • 400-second vibration component 410-piezoelectric structure, 420-shrapnel, 421-connection section, 422-deformation section, 423-installation section, 430-gasket,
  • the vibration motor includes a housing 100, a mass 200, a first vibration assembly 300 and a second vibration assembly 400.
  • the vibration motor can be used in in electronic equipment.
  • the housing 100 is the overall external structure of the vibration motor, which can provide an installation basis and protection for other components in the vibration motor.
  • the housing 100 can be made of materials with relatively high structural strength such as plastic or metal.
  • the shape and size of 100 can be determined according to actual needs, and are not limited here.
  • the entire housing 100 can be a split structure, and the housing 100 has an inner cavity to provide accommodation for other components, and after the other components in the vibration motor are installed in the housing 100, by making the housing 100 Forming a fixed connection relationship among the components makes the casing 100 form a complete structure.
  • the housing 100 may include a housing body and a packaging board, the housing body is provided with an open cavity, and the packaging board is packaged and connected with the housing body so that the open cavity can form a relatively closed cavity, and The encapsulation of other components installed in the casing 100 is completed.
  • the casing 100 has a first surface 110 and a second surface 120, and the first surface 110 and the second surface 120 are oppositely disposed.
  • the shapes and sizes of the two surfaces can be correspondingly the same, so that the structure of the entire casing 100 is relatively regular, which facilitates processing and assembly, and makes it easier for electronic equipment to arrange the installation space of the vibration motor.
  • one of the first surface 110 and the second surface 120 may be located on the housing body, the other is located on the package board, and the first surface 110 and the second surface 120 are opposite.
  • the mass block 200 is a device used in the vibration motor to enhance the vibration effect, and the mass block 200 can be made of relatively high-density materials such as metal. More specifically, the mass block 200 can be made of tungsten alloy to further ensure that the mass block 200 can provide better inertial effect. Parameters such as the specific shape, size and weight of the mass block 200 can be flexibly determined according to the design requirements of the vibration motor, and are not limited here.
  • Both the first vibrating component 300 and the second vibrating component 400 are devices capable of providing vibration in the vibrating motor. In order to ensure that both can provide better vibration effects, both the first vibrating assembly 300 and the second vibrating assembly 400 can be connected to the mass block 200, so that when either one of the two is working, it can drive the mass block 200 Movement, enhance the vibration effect.
  • the first vibration component 300 and the second vibration component 400 are interposed between the first surface 110 and the second surface 120 .
  • the first vibrating components 300 and the second vibrating components 400 may be distributed along a direction perpendicular to the relative direction of the first surface 110 and the second surface 120 .
  • the first vibration components 300 and the second vibration components 400 may be distributed along the relative direction of the first surface 110 and the second surface 120 .
  • the maximum vibration amplitude of both the first vibrating component 300 and the second vibrating component 400 can be increased to enhance the vibrating effect; thickness, but can reduce the length and width of the vibration motor, which is more conducive to the layout design of the vibration motor in electronic equipment.
  • the mass block 200 can be arranged between the first vibrating assembly 300 and the second vibrating assembly 400, and in order to ensure that the vibration motor can work normally, the first vibrating assembly 300, the mass block 200 and the second vibrating assembly can be arranged An elastic member is arranged between the two vibrating components 400 to ensure that both the first vibrating component 300 and the second vibrating component 400 can normally drive the mass block 200 to move relative to the casing 100 .
  • the axes of the first vibrating assembly 300 and the second vibrating assembly 400 can be coincident, in this case, it can be prevented that when one of the first vibrating assembly 300 and the second vibrating assembly 400 vibrates, the other
  • the vibration effect of the first vibrating component 300 and the second vibrating component 400 can be further improved due to axial deflection and damage when deformed by vibration.
  • the axes of the components used to provide the driving function in the first vibrating assembly 300 and the second vibrating assembly 400 can be coincident to achieve the purpose of coincident axes of the first vibrating assembly 300 and the second vibrating assembly 400 .
  • the first vibrating component 300 and the second vibrating component 400 are distributed along the relative direction of the first surface 110 and the second surface 120 , the first vibrating component 300 can be located near the first surface 110 of the second vibrating component 400 On one side, the first vibrating component 300 may also be located on the side of the second vibrating component 400 close to the second surface 120 , which is not limited herein. In order to facilitate the development of the following, it will be described herein as an example that the first vibrating component 300 is located on a side of the second vibrating component 400 close to the first surface 110 .
  • the first vibrating assembly 300 includes a driving part, which can be mounted on the casing 100 by means of bonding or screw connection, and the driving part cooperates with the mass block 200 .
  • the driving part can be a device capable of providing linear reciprocating motion, such as a linear motor, so that when the driving part is energized, the driving part can drive the mass 200 to reciprocate between the first surface 110 and the second surface 120, thereby making the entire
  • the vibrating motor produces a vibrating effect.
  • the second vibrating component 400 includes a piezoelectric structural member 410, and the piezoelectric structural member 410 may specifically be piezoelectric ceramics. More specifically, the piezoelectric ceramics may be barium titanate piezoelectric ceramics or lead zirconate titanate piezoelectric ceramics.
  • the piezoelectric structural member 410 can be directly connected to the mass block 200, or other structural members can be arranged between the piezoelectric structural member 410 and the mass block 200 to indirectly The piezoelectric structure 410 and the proof mass 200 are connected to ground.
  • the piezoelectric structural member 410 can produce movement when it is energized, and by changing the direction of the current flowing into the piezoelectric structural member 410, the piezoelectric structural member 410 can produce a movement in the opposite direction.
  • the deformation of the piezoelectric structural component 410 can drive the mass block 200 to reciprocate between the first surface 110 and the second surface 120, ensuring that the second vibrating component 400 can also cause the entire vibrating motor to produce a vibrating effect .
  • the direction of motion of the piezoelectric structural member 410 can be changed repeatedly by passing alternating current to the piezoelectric structural member 410, so that the piezoelectric structural member 410 can switch between two deformation states to drive the mass 200 do reciprocating motion.
  • parameters such as the amplitude and frequency of motion generated by the piezoelectric structural member 410 can also be changed accordingly.
  • Embodiments of the present application provide a vibration motor and electronic equipment.
  • the vibration motor includes a casing 100 and a mass block 200 installed in the casing 100, a first vibration assembly 300 and a second vibration assembly 400, and the first vibration assembly 300 and the second vibration assembly
  • the two vibrating components 400 are connected and matched with the mass block 200.
  • the first vibrating component 300 includes a driving member
  • the second vibrating component 400 includes a piezoelectric structural member 410. Both the driving member and the piezoelectric structural member 410 can drive the mass in an electrified state.
  • the block 200 reciprocates between the opposing first surface 110 and the second surface 120 in the housing 100 so that the vibration motor can provide a vibration effect.
  • the part used to drive the movement of the mass 200 in the second vibrating assembly 400 is the piezoelectric structural member 410.
  • the frequency of the piezoelectric structural member 410 ’s stretching and deformation is related to the frequency of the input electricity, and then it can be controlled to the piezoelectric structure.
  • the frequency of the current input to the component 410 controls the vibration frequency of the piezoelectric structural component 410, which can expand the frequency bandwidth of the vibration motor.
  • the piezoelectric structural member 410 can be directly connected to the proof mass 200 by bonding or other methods. , directly connect the piezoelectric structural member 410 to the second surface 120 .
  • the second vibrating assembly 400 further includes an elastic piece 420, which is a flaring-shaped structural member.
  • the shrapnel 420 may be a cymbal-shaped structural member.
  • the flaring section of the shrapnel 420 is provided with a first fitting surface, and the end of the shrapnel 420 away from the flaring section is provided with a second fitting surface, in order to reduce the limiting effect of the connection relationship on the deformation of the piezoelectric structural member 410, and improve the piezoelectric structure.
  • the deformation performance of the structural member 410 as shown in FIG.
  • an elastic piece 420 is provided between the second surface 120 of the housing 100 and the piezoelectric structural member 410, so that during the deformation process of the piezoelectric structural member 410, the elastic piece 420 produces The deformation amount increases the deformation range of the piezoelectric structural member 410, thereby increasing the vibration amplitude of the second vibration component 400 and improving the vibration effect of the vibration motor.
  • the first bonding surface of the elastic piece 420 can be It is bonded to the piezoelectric structural member 410 , and the second bonding surface of the elastic piece 420 is bonded to the second surface 120 of the casing 100 .
  • the connection area between the piezoelectric structural member 410 and the elastic piece 420 and between the elastic piece 420 and the second surface 120 can be increased, and the connection between the elastic piece 420 and the housing 100 and the piezoelectric structural member 410 can be improved. relationship reliability.
  • the elastic piece 420, the piezoelectric structural member 410 and the housing 100 can also be connected to each other by bonding, so as to ensure a high connection reliability between the piezoelectric structural member 410, the housing 100 and the elastic piece 420 At the same time, it reduces the difficulty of connection between components.
  • the deformation in a larger range on the piezoelectric structural member 410 can be transmitted to the elastic piece 420, thereby enlarging the maximum deformation of the elastic piece 420 amount to further increase the vibration amplitude of the second vibrating component 400 .
  • the side of the elastic sheet 420 can be a conical side-shaped structure.
  • the elastic sheet 420 can be a strip-shaped structural member as a whole, and the middle part of the elastic sheet 420 is arched to form a flared structure. .
  • only opposite ends of the elastic piece 420 can be connected to the piezoelectric structural member 410, which can further reduce the impact on the piezoelectric structural member 410 caused by the connection relationship between the elastic piece 420 and the piezoelectric structural member 410. The limiting effect of the deformability.
  • the above-mentioned elastic piece 420 can also be arranged between the mass block 200 and the piezoelectric structural member 410, and the first bonding surface of the elastic piece 420 and the piezoelectric structural member 410 Bonding, so that the second bonding surface of the elastic piece 420 is bonded to the mass block 200, thereby reducing the restriction effect of the connection relationship between the mass block 200 and the piezoelectric structural member 410 on the deformation ability of the piezoelectric structural member 410, and further improving The deformation ability of the piezoelectric structural member 410, and with the help of the shrapnel 420 on the opposite sides of the piezoelectric structural member 410, the deformation of the piezoelectric structural member 410 is maximized, and the vibration amplitude of the second vibration component 400 is increased, thereby improving the vibration The vibration effect of the motor.
  • the structure and size of the shrapnel 420 disposed on opposite sides of the piezoelectric structural member 410 can be flexibly determined according to parameters such as the size and shape of the piezoelectric structural member 410 and the proof mass 200 .
  • parameters such as the size and shape of the piezoelectric structural member 410 and the proof mass 200 .
  • the shapes of the elastic pieces 420 can be made the same, and the relative positions between the elastic pieces 420 and the piezoelectric structural member 410 can be the same or substantially similar, which can make the elastic pieces 420
  • the positions of the constraints on the piezoelectric structural member 410 caused by the connection with the piezoelectric structural member 410 are the same or substantially similar, thereby further reducing the magnitude of the drop in deformation ability of the piezoelectric structural member 410 due to the interconnection with each elastic piece 420 .
  • the projections of the elastic pieces 420 in the aforementioned relative directions can all be located on the piezoelectric structural member 410 . That is to say, the first bonding surface of the elastic piece 420 is completely connected to the piezoelectric structural member 410, which can further improve the stability of the connection relationship between the elastic piece 420 and the piezoelectric structural member 410, which can also further improve the stability of the elastic piece 420.
  • the maximum deformation capacity when the piezoelectric structural member 410 is deformed.
  • the opposite ends of the elastic piece 420 may be as close as possible to the opposite ends of the piezoelectric structural member 410 .
  • a gasket 430 may also be provided between the elastic piece 420 and the piezoelectric structural member 410, the elastic piece 420 is connected to the piezoelectric structural member 410 through the gasket 430, and the gasket 430 has a certain degree of Therefore, when the piezoelectric structural member 410 is deformed, the restriction effect of the connection relationship between the piezoelectric structural member 410 and the elastic piece 420 on the deformation of the piezoelectric structural member 410 can be further relieved.
  • the spacer 430 can be made of materials such as rubber, and the spacer 430 can be connected to the elastic piece 420 and the piezoelectric structural member 410 by bonding or the like.
  • the elastic piece 420 can be a bar-shaped structural member, as shown in Figure 3 and Figure 4, the elastic piece 420 can include a connecting section 421, a deformation section 422 and an installation section 423, wherein the connecting section Both opposite ends of 421 are connected with deformation sections 422, and the ends of each deformation section 422 away from the connection section 421 are connected with installation sections 423, the installation sections 423 have a first fitting surface, and the connection section 421 has a second fitting surface, That is, the elastic piece 420 is connected to the piezoelectric structural member 410 through the installation section 423 , and is connected to the housing 100 (or the proof mass 200 ) through the connection section 421 .
  • the deformation section 422 is arranged obliquely relative to the piezoelectric structural member 410, or in other words, the deformation section 422 is arranged obliquely relative to the first bonding surface and the second bonding surface, so that The deformation section 422 can be elastically deformed relative to the connection section 421 (and the installation section 423 ), so that the entire elastic piece 420 has the ability to deform.
  • the piezoelectric structural member 410 when the piezoelectric structural member 410 is energized, the piezoelectric structural member 410 deforms to drive the shrapnel 420 to deform, specifically the deformed section 422 is deformed, and the piezoelectric structural member 410 and the deformation During the deformation process of the segment 422, the size of the two along the distribution direction of the opposite ends of the connecting segment 421 is reciprocally switched between increasing and decreasing. The size of the reciprocating switch between decreasing and increasing, so that the piezoelectric structural member 410 and the elastic piece 420 can drive the mass block 200 to reciprocate between the first surface 110 and the second surface 120 .
  • the vibration motor can also include a storage and power supply module 510, which can store and supply electric energy.
  • the storage and power supply module 510 can specifically be a lithium battery, and in When the vibration motor is applied to an electronic device, the power storage module 510 may be (at least a part of) a battery of the electronic device.
  • the power storage module 510 is electrically connected to the driver and the piezoelectric structure 410 , so that both the driver and the piezoelectric structure 410 can interact with the power storage module 510 .
  • the driving member and the piezoelectric structural member 410 may be electrically connected to the storage and power supply module 510 through cables.
  • the driving member when the driving member is energized, the driving member can drive the mass 200 to move between the first surface 110 and the second surface 120 .
  • the second vibrating component 400 can also vibrate between the first surface 110 and the second surface 120 with the driving element, so that the piezoelectric structure 410 can generate charges under the action of its own characteristics.
  • the piezoelectric structure 410 is connected to the power storage module 510 , the electric energy generated by the piezoelectric structure 410 can be transmitted and stored in the power storage module 510 .
  • the electric energy stored in the power storage module 510 can be output to the driver to provide at least a part of the required electric energy for the driver, which enables the electric energy in the vibration motor to be recycled and reused to reduce vibration
  • the overall energy consumption of the motor can improve the battery life of the electronic device when the vibration motor is applied to the electronic device.
  • the driving part can be a linear motor.
  • the driving part includes a first magnet 321 and a second magnet 322.
  • the first magnet 321 is fixedly connected to the proof mass 200, and the second magnet 322 is installed On the housing 100, at least one of the first magnet 321 and the second magnet 322 is an electromagnet. That is to say, in this embodiment, the driving element drives the mass 200 to reciprocate between the first surface 110 and the second surface 120 through a magnetic cooperation relationship.
  • the direction of the magnetic poles of the electromagnet can be changed, so that the first magnet 321 and the second magnet 322 can be in the state of mutual attraction and mutual repulsion respectively, and then the first magnet 321 and the second magnet 322 can be cyclically switched between two states of being close to each other and being far away from each other, driving the proof mass 200 to reciprocate between the first surface 110 and the second surface 120 .
  • the first magnet 321 and the mass block 200 can be fixed to each other by bonding or the like, and the first magnet 321 can be a permanent magnet, and the second magnet 322 can be an electromagnet, and the second magnet 322 includes an iron core 3221 And the coil 3222, the coil 3222 is wound on the iron core 3221, and the coil 3222 can be connected to the power supply through the flexible circuit board 520, so as to supply power to the flexible circuit board 520 through the power supply.
  • both the driver can have the driving function, and the overall structure of the driver can be relatively low in complexity; and, when the driver adopts the above technical solution, the first magnet 321 and the second The magnets 322 are provided with an initial distance, so that the first magnet 321 and the second magnet 322 will not interfere with each other when the piezoelectric structural member 410 drives the mass block 200 to reciprocate. Under the above circumstances, even if components such as elastic members are no longer provided in the vibration motor, the normal operation of the vibration motor can be guaranteed.
  • the driving direction of the driving part can be easily changed by passing an alternating current to the driving part, so that the driving part can drive the mass block 200 on the first surface 110 and the second surface 110 .
  • the first vibrating component 300 may further include an elastic member 310, one end of the elastic member 310 is fixed to the first magnet 321, and the other end of the elastic member 310 is connected to the second magnet. 322 is fixed, and the elastic member 310 is in a stretched state or a compressed state when the driving member is energized.
  • the first magnet 321 and the second magnet 322 are connected to each other through the elastic member 310.
  • the elastic member 310 can provide a restriction for the movement process of the second magnet 322, and on the other hand, it can also prevent the first magnet 321 from The distance to the second magnet 322 is too large or too small.
  • the vibration amplitude of the first vibration component 300 reaches the maximum.
  • the frequency of the current that needs to be passed into the second vibrating component 400 can be determined according to the frequency parameter that the frequency of the passing current satisfies half of the maximum amplitude of the first vibrating component 300, so as to further expand the vibrating motor.
  • the frequency width of the current corresponding to the large amplitude state can improve the user experience of the vibration motor.
  • the embodiment of the present application also provides an electronic device, which includes any of the above vibration motors.
  • the electronic device also includes components such as a motherboard, a display screen, and a battery. Considering the simplicity of the text , which will not be described in detail here.
  • the electronic device disclosed in the embodiment of the present application may be a mobile phone, a computer, an e-book reader, a wearable device, etc., and the embodiment of the present application does not limit the specific type of the electronic device.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

La présente demande concerne un moteur à vibrations et un dispositif électronique, appartenant au domaine technique des dispositifs de communication. Le moteur à vibrations comprend un boîtier, un bloc de masse, un premier ensemble de vibration et un deuxième ensemble de vibration, le premier ensemble de vibration et le deuxième ensemble de vibration étant serrés entre une première surface et une deuxième surface qui sont disposées l'une en face de l'autre dans le boîtier; le premier ensemble de vibration comprend un élément d'entraînement, et l'élément d'entraînement est monté sur le boîtier et correspond au bloc de masse; le deuxième ensemble de vibration comprend un élément structural piézoélectrique, et l'élément structural piézoélectrique est relié au boîtier et au bloc de masse; dans le cas où l'élément d'entraînement est mis sous tension, l'élément d'entraînement entraîne le bloc de masse à effectuer un mouvement de va-et-vient entre la première surface et la deuxième surface; et dans le cas où l'élément structural piézoélectrique est mis sous tension, l'élément structural piézoélectrique se déforme et entraîne le bloc de masse à effectuer un mouvement de va-et-vient entre la première surface et la seconde surface.
PCT/CN2022/092411 2021-05-17 2022-05-12 Moteur à vibrations et dispositif électronique Ceased WO2022242537A1 (fr)

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CN202110532292.3A CN113258823B (zh) 2021-05-17 2021-05-17 振动马达及电子设备
CN202110532292.3 2021-05-17

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CN113258823B (zh) * 2021-05-17 2025-01-14 维沃移动通信有限公司 振动马达及电子设备
CN114915206A (zh) * 2022-05-26 2022-08-16 深圳市密姆科技有限公司 一种压电式致动装置及终端
CN115133807B (zh) * 2022-06-13 2026-04-17 维沃移动通信有限公司 电子设备
CN115085456B (zh) * 2022-07-18 2025-09-12 维沃移动通信有限公司 电子设备

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