CN116707257A - Miniature moving-coil loudspeaker and low-frequency sound playback method - Google Patents

Abstract

The present disclosure provides a miniature moving coil speaker and a low frequency sound playback method. The miniature moving coil loudspeaker includes: a broadband vibration motor; the broadband vibration motor comprises a motor body, a motor bracket and a vibrator; the motor support is connected to the vibrating diaphragm of the miniature moving coil loudspeaker, the first end of the vibrating body is connected with the motor body, and the other end of the vibrating body is connected with the motor support. The problem of high low-frequency resonance frequency can be improved by applying the broadband vibration motor to the traditional miniature moving-coil loudspeaker, so that the tone quality of the loudspeaker is improved.

Description

Miniature moving-coil loudspeaker and low-frequency sound playback method

Technical Field

The present disclosure relates to the field of electroacoustic products, and in particular, to a miniature moving coil speaker and a low frequency sound playback method.

Background

The miniature moving coil loudspeaker is a small loudspeaker and is commonly used in devices such as headphones and earplugs. It uses a very small driver to vibrate a small circular basin-shaped diaphragm, thereby producing sound. However, the micro moving coil speaker provided by the related art is limited by the size, so that the vibration amplitude of the diaphragm is insufficient, and the low-frequency resonance frequency of the whole speaker is high, and the low-frequency sound playback effect is poor.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

The present disclosure provides a miniature moving coil speaker and a low frequency sound playback method.

The present disclosure adopts the following technical solutions.

In some embodiments, the present disclosure provides a miniature moving coil speaker comprising:

a broadband vibration motor;

the broadband vibration motor comprises a motor body, a motor bracket and a vibrator;

the motor support is connected to the vibrating diaphragm of the miniature moving coil loudspeaker, the first end of the vibrating body is connected with the motor body, and the other end of the vibrating body is connected with the motor support.

In some embodiments, the disclosure provides a low-frequency sound playback method implemented based on the micro moving coil speaker, including:

acquiring an input signal;

and controlling the vibration frequency and the vibration amplitude of the broadband vibration motor in the micro moving coil loudspeaker according to the input signal.

In some embodiments, the present disclosure provides an electronic device comprising: a broadband vibration motor;

the broadband vibration motor comprises a motor body, a motor bracket and a vibrator;

the motor support is connected to the vibrating diaphragm of the miniature moving coil loudspeaker, the first end of the vibrating body is connected with the motor body, and the other end of the vibrating body is connected with the motor support.

According to the miniature moving-coil loudspeaker provided by the embodiment of the disclosure, the broadband vibration motor is applied to the traditional miniature moving-coil loudspeaker, the problem that the low-frequency resonant frequency of the traditional miniature moving-coil loudspeaker is higher is solved according to the working principle of the broadband vibration motor, the performance and performance of the miniature moving-coil loudspeaker can be effectively improved, and the miniature moving-coil loudspeaker has higher practical value.

Drawings

The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by reference to the following detailed description when taken in conjunction with the accompanying drawings. The same or similar reference numbers will be used throughout the drawings to refer to the same or like elements. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a miniature moving coil speaker according to an embodiment of the present disclosure.

Fig. 2 is a flow chart of a low frequency sound playback method implemented based on a micro moving coil speaker according to an embodiment of the present disclosure.

Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure have been shown in the accompanying drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in and/or in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.

The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below. The term "responsive to" and related terms mean that one signal or event is affected to some extent by another signal or event, but not necessarily completely or directly. If event x occurs "in response to" event y, x may be directly or indirectly in response to y. For example, the occurrence of y may ultimately lead to the occurrence of x, but other intermediate events and/or conditions may exist. In other cases, y may not necessarily result in the occurrence of x, and x may occur even though y has not yet occurred. Furthermore, the term "responsive to" may also mean "at least partially responsive to".

The term "determining" broadly encompasses a wide variety of actions, which may include obtaining, calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, a database or another data structure), ascertaining and the like, and may also include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory) and the like, as well as parsing, selecting, choosing, establishing and the like. Related definitions of other terms will be given in the description below. Related definitions of other terms will be given in the description below.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "a" and "an" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.

The names of messages or information interacted between the various devices in the embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

The following describes in detail the schemes provided by the embodiments of the present disclosure with reference to the accompanying drawings.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a micro moving coil speaker according to an embodiment of the present disclosure, including:

a broadband vibration motor 1;

the broadband vibration motor 1 comprises a motor body 2, a motor bracket 3 and a vibrator 4;

the motor bracket 3 is connected to a vibrating diaphragm 5 of the micro moving coil speaker, a first end of the vibrator 4 is connected to the motor body 2, and the other end is connected to the motor bracket 3.

In some embodiments, the miniature moving coil speaker is a small speaker, typically used in headphones, earphones, and the like. It uses a very small driver to vibrate a small circular basin-shaped diaphragm, thereby producing sound. The principle of operation of miniature moving coil speakers is similar to that of conventional moving coil speakers, but they are smaller, lighter, and more suitable for use in small devices. They consist of a small magnet and a coil that tightly encloses the magnet. When a current is passed through the coil, it generates a magnetic field that interacts with the magnet, causing the coil and diaphragm to vibrate together. The diaphragm of a miniature moving-coil loudspeaker is usually made of a very thin film material, such as a polyester film or a polycarbonate film. Such materials can vibrate rapidly under the influence of the driver, thereby producing sound. Because of their small size, miniature moving coil speakers typically require higher currents to produce adequate sound. Therefore, they are often required to be used with an amplifier circuit. Advantages of miniature moving coil speakers include small size, light weight, fast response, low power consumption, etc., making them suitable for use in many small electronic devices. However, their sound quality may be affected by size and power limitations.

In some embodiments, the related art provides a micro moving coil speaker having a drawback that the amplitude of the diaphragm is limited by the size so that the low frequency resonant frequency F0 of the entire speaker is high, for example, a micro speaker unit having a thickness of 4mm may have a maximum amplitude of only 0.8mm, and the F0 is around 200Hz, and the sound reproduction capability is weak in a lower frequency range. However, there is a considerable part of the low frequency sound content of the video music to be played back below 200Hz, and the physical limitation of the low frequency shortage of the micro-speaker provided by the related art causes the problem of lack of strength of the whole tone color menu. In addition, the structure and design of the consumer electronic products are towards small and thin directions, and the thickness and the volume of the loudspeaker cannot be larger for the bass effect, so that the micro moving-coil loudspeaker in the related technology is difficult to break through the physical limitation.

Aiming at the problems that the micro moving coil loudspeaker provided by the related technology is poor in low-frequency performance and difficult to lift under the existing size limitation, the embodiment of the disclosure effectively reduces F0 of a vibration device by introducing the principle of vibration of a broadband motor (wide-bandwidth actuator) and achieves a low-frequency playback effect in a real sense.

In some embodiments, a broadband vibration motor (also referred to as a vibration motor) is an electric motor that operates on the principle of converting electrical energy into mechanical vibration. Its design is such that it can generate vibrations of a range of frequencies, typically between tens of hertz and a few kilohertz. These vibrations may be used in a variety of applications such as cell phone vibration, game controllers, medical devices, and the like.

In some embodiments, the broadband motor is generally comprised of an outer housing and an inner rotor. Inside the rotor there are a series of curved metal strips called "camber beams" or "vibrators". The beams are fixed to the central shaft of the rotor and to the housing at both ends thereof. When current is passed through the motor, the beams start to bend because of their shape such that their length between the two ends is constantly changing. When the beams bend, they generate mechanical vibrations which are transferred to the outer shell and to the surrounding environment. Because the length and shape of the flexure is constantly changing, a broadband motor can produce vibrations at a range of frequencies. These vibrations can be controlled by varying the frequency and amplitude of the current.

In some embodiments, the broadband motor operates on a different principle than a conventional motor. The vibration generated by a conventional motor is a rotational motion due to the interaction of magnetic fields between the rotor and the stator. In contrast, the vibration of a broadband motor is generated by converting electrical energy into mechanical vibration. This principle of operation allows a wide frequency range to be produced by a broadband motor and can be controlled and adjusted more easily.

As shown in fig. 1, the embodiment of the present disclosure changes the inherent architecture of the magnetic circuit of the moving coil speaker unit in the related art, which combines the voice coil as the driving core, to change the transducer into a broadband vibration motor unit. The driving force of a conventional moving coil loudspeaker comes from the movement of the coil in the magnetic path gap, while a broadband vibration motor is an internal mass that vibrates entirely within the range defined by the spring. Due to the different vibration mechanisms, the resonance frequency of the motor can be as low as 100Hz or less in the same small size, and the effective frequency can cover the operating frequency range from about 50Hz to 500Hz, which is suitable as the operating frequency range for driving the woofer.

The embodiment of the disclosure can effectively solve the problem of insufficient low-frequency response energy of the micro-speaker, especially the problem that the traditional micro-speaker is difficult to cover in a frequency band below 300Hz and poor bass hearing in feedback of products of the micro-speaker, and can effectively solve the problem of poor bass hearing caused by the traditional micro-speaker.

In some embodiments, it should be noted that the broadband motor is a separate vibration source, and it does not need to perform the combination of magnetic circuit, voice coil, diaphragm, support and cavity like a moving coil speaker, so that from the perspective of the speaker module, the main volume is only related to the volume of the motor itself and the size of the diaphragm, so that on one hand, the volume of the speaker module can be simplified, no separate rear cavity is needed, and on the other hand, the assembly complexity is significantly reduced, and only the motor and the diaphragm need to be fixed in place. On the other hand, in order to adapt the weight of the motor and to raise the vibration loudness, it is necessary to provide sufficient damping and strength in the design of the diaphragm and the bellows.

In some embodiments, a dual-diaphragm structure may be further implemented, that is, a group of diaphragm systems are respectively fixed on two sides of the motor, so that under the driving of the motor, the diaphragms on two sides drive air to generate more sound energy, thereby achieving the effect of improving the loudness.

In some embodiments, it is understood that the broadband vibration motor selected in the embodiments of the present disclosure is used as an independent vibration source, and the combination of the diaphragm and the voice coil is not required, so that abrasion and damage caused by contact between the diaphragm and the voice coil are avoided. In addition, the broadband motor has excellent performance in terms of low-frequency response, and can generate deeper and more powerful low-frequency sound effects. In addition, the broadband motor has simple structure, is easy to manufacture and maintain, and can realize more efficient production and maintenance.

In some embodiments, the broadband vibration motor is a vibration device that can produce a relatively broadband response, and can be used in conventional miniature moving-coil speakers. Unlike conventional miniature moving coil speakers, it can produce smoother response in the low frequency range, avoiding the problem of excessive low frequency resonance frequency.

In particular, the disclosed embodiments are implemented by placing a broadband vibration motor above or below the diaphragm of a conventional micro moving coil speaker. When a broadband vibration motor is driven, it produces a smoother vibration response, thereby reducing the problem of higher low frequency resonant frequencies. In addition, the broadband vibration motor can also improve the frequency response and the tone quality performance of the traditional miniature moving-coil loudspeaker. In general, by applying the broadband vibration motor to the conventional micro moving coil speaker and improving the problem of the conventional micro moving coil speaker that the low frequency resonance frequency is high according to the operating principle of the broadband vibration motor, the performance and performance of the micro moving coil speaker can be effectively improved.

In some embodiments, the shape of the vibrator is different from the shape of the vibration motor, the shape of the vibrator is circular or elliptical, and the shape of the vibration motor is rectangular to increase the rigidity of the vibrator and reduce the low frequency resonance frequency.

In some embodiments, the material of the vibrator is a rigid material, such as ceramic, metal, etc., to increase the rigidity of the vibrator and reduce the low frequency resonant frequency.

As shown in fig. 2, the embodiment of the present disclosure further provides a low-frequency sound playback method implemented based on the foregoing micro moving coil speaker, including:

step S01: acquiring an input signal;

step S02: and controlling the vibration frequency and the vibration amplitude of the broadband vibration motor in the micro moving coil loudspeaker according to the input signal.

In some embodiments, this is achieved by placing a broadband vibration motor above or below the diaphragm of a conventional miniature moving coil speaker. When a broadband vibration motor is driven, it produces a smoother vibration response, thereby reducing the problem of higher low frequency resonant frequencies. In addition, the broadband vibration motor can also improve the frequency response and the tone quality performance of the traditional miniature moving-coil loudspeaker. According to the embodiment of the disclosure, the broadband vibration motor is applied to the traditional micro moving-coil loudspeaker, and the problem that the low-frequency resonant frequency of the traditional micro moving-coil loudspeaker is higher is solved according to the working principle of the broadband vibration motor, so that the performance and performance of the micro moving-coil loudspeaker can be effectively improved.

In some embodiments, acquiring the input signal includes acquiring an audio signal input by a user and controlling a vibration frequency and an amplitude of a broadband vibration motor within the micro moving coil speaker according to the audio signal.

The apparatus and methods of the present disclosure are described above based on the embodiments and applications. In addition, the disclosure also provides electronic equipment.

Referring now to fig. 3, a schematic diagram of an electronic device (e.g., a terminal device or server) 800 suitable for use in implementing embodiments of the present disclosure is shown. The terminal devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), augmented reality devices XR (Extended reality), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. The electronic device shown in the drawings is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.

The electronic device 800 may include a processing means (e.g., a central processor, a graphics processor, etc.) 801 that may perform various appropriate actions and processes in accordance with programs stored in a Read Only Memory (ROM) 802 or loaded from a storage 808 into a Random Access Memory (RAM) 803. In the RAM803, various programs and data required for the operation of the electronic device 800 are also stored. The processing device 801, the ROM 802, and the RAM803 are connected to each other by a bus 804. An input/output (I/O) interface 805 is also connected to the bus 804.

In general, the following devices may be connected to the I/O interface 805: input devices 806 including, for example, a touch screen, touchpad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, and the like; an output device 807 including, for example, a Liquid Crystal Display (LCD), speakers, vibrators, etc.; storage 808 including, for example, magnetic tape, hard disk, etc.; communication means 809. The communication means 809 may allow the electronic device 800 to communicate wirelessly or by wire with other devices to exchange data. While an electronic device 800 having various means is shown, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may be implemented or provided instead.

In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from a network via communication device 809, or installed from storage device 808, or installed from ROM 802. The above-described functions defined in the methods of the embodiments of the present disclosure are performed when the computer program is executed by the processing device 801.

It should be noted that the computer readable medium described in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.

In some implementations, the clients, servers may communicate using any currently known or future developed network protocol, such as HTTP (HyperText Transfer Protocol ), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the internet (e.g., the internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed networks.

The computer readable medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.

The computer readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to perform the methods of the present disclosure described above.

Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In some embodiments, the miniature moving coil speaker provided by the present disclosure may be disposed on a structure of the device near the ear, such as a rigid structure of a headset, a virtual reality VR (Virtual Reality) eyeglass band, or on a temple structure of an augmented reality AR (Augmented Reality) eyeglass.

According to one or more embodiments of the present disclosure, there is provided a micro moving coil speaker including:

a broadband vibration motor;

the broadband vibration motor comprises a motor body, a motor bracket and a vibrator;

the motor support is connected to the vibrating diaphragm of the miniature moving coil loudspeaker, the first end of the vibrating body is connected with the motor body, and the other end of the vibrating body is connected with the motor support.

According to one or more embodiments of the present disclosure, there is provided a miniature moving coil speaker, further comprising:

a driving circuit;

the driving circuit is connected with the motor body and used for controlling the vibration frequency and the vibration amplitude of the motor body, and the motor support transmits the vibration force generated by the motor body to the vibrating diaphragm through the vibrating body.

According to one or more embodiments of the present disclosure, there is provided a micro moving coil speaker, the diaphragm being located at one side or both sides of the motor support.

In accordance with one or more embodiments of the present disclosure, a micro moving coil speaker is provided, the broadband vibration motor adopts an asymmetric structure such that the vibrator has different vibration modes at high and low frequencies.

In accordance with one or more embodiments of the present disclosure, a miniature moving coil speaker is provided, the broadband vibration motor being made of a high performance material.

According to one or more embodiments of the present disclosure, there is provided a miniature moving coil speaker, the drive circuit including a power amplifier and a signal processor;

the signal processor is used for processing an input signal and driving the motor body of the broadband vibration motor to mechanically vibrate through the power amplifier.

According to one or more embodiments of the present disclosure, there is provided a micro moving coil speaker, the shape of the vibrator is circular or elliptical, and the shape of the vibration motor is rectangular.

According to one or more embodiments of the present disclosure, there is provided a miniature moving coil speaker, the material of the vibrator being a rigid material.

According to one or more embodiments of the present disclosure, there is provided a low-frequency sound playback method implemented based on the micro moving coil speaker described above, including:

acquiring an input signal;

and controlling the vibration frequency and the vibration amplitude of the broadband vibration motor in the micro moving coil loudspeaker according to the input signal.

In some embodiments, the speaker is typically used to supplement the low-frequency audio presentation of the terminal device or to replace the operation of the original low-frequency speaker in the terminal device. In the related art, most of terminal products use a single speaker unit to represent sounds in multiple frequency bands of high, medium and low, and the low-frequency speaker assembly provided in the embodiments of the present disclosure can cooperate with, replace or supplement the low-frequency sound effects of the single speaker.

According to one or more embodiments of the present disclosure, there is provided an electronic device including: at least one memory and at least one processor;

wherein the at least one memory is configured to store program code, and the at least one processor is configured to invoke the program code stored by the at least one memory to perform any of the methods described above.

According to one or more embodiments of the present disclosure, a computer-readable storage medium is provided for storing program code which, when executed by a processor, causes the processor to perform the above-described method.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this disclosure is not limited to the specific combinations of features described above, but also covers other embodiments which may be formed by any combination of features described above or equivalents thereof without departing from the spirit of the disclosure. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).

Moreover, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.

Claims (10)

1. A miniature moving coil loudspeaker comprising:

a broadband vibration motor;

the broadband vibration motor comprises a motor body, a motor bracket and a vibrator;

the motor support is connected to the vibrating diaphragm of the miniature moving coil loudspeaker, the first end of the vibrating body is connected with the motor body, and the other end of the vibrating body is connected with the motor support.

2. The loudspeaker of claim 1, further comprising:

a driving circuit;

the driving circuit is connected with the motor body and used for controlling the vibration frequency and the vibration amplitude of the motor body, and the motor support transmits the vibration force generated by the motor body to the vibrating diaphragm through the vibrating body.

3. The loudspeaker of claim 1, wherein the diaphragm is located on one or both sides of the motor mount.

4. The loudspeaker of claim 1, wherein the broadband vibration motor is of an asymmetric configuration such that the vibrating body has different vibration modes at high and low frequencies.

5. The loudspeaker of claim 1, wherein the broadband vibration motor is made of a high performance material.

6. The loudspeaker of claim 2, wherein the drive circuit comprises a power amplifier and a signal processor;

the signal processor is used for processing an input signal and driving the motor body of the broadband vibration motor to mechanically vibrate through the power amplifier.

7. The speaker of claim 1, wherein the vibration body is circular or elliptical in shape and the vibration motor is rectangular in shape.

8. The loudspeaker of claim 1, wherein the material of the vibrator is a rigid material.

9. A low frequency sound playback method implemented based on the micro moving coil speaker according to any one of claims 1 to 8, comprising:

acquiring an input signal;

and controlling the vibration frequency and the vibration amplitude of the broadband vibration motor in the micro moving coil loudspeaker according to the input signal.

10. An electronic device, comprising:

a broadband vibration motor;

the broadband vibration motor comprises a motor body, a motor bracket and a vibrator;

the motor support is connected to the vibrating diaphragm of the miniature moving coil loudspeaker, the first end of the vibrating body is connected with the motor body, and the other end of the vibrating body is connected with the motor support.