Embodiments of this application provide a speaker module and a portable electronic device. The speaker module includes a first speaker module and a second speaker module. The first speaker module includes a first housing and a first speaker monomer accommodated in the first housing, and the first speaker monomer has a first diaphragm. The second speaker module includes a second housing and a second speaker monomer accommodated in the second housing, and the second speaker monomer has a second diaphragm. The first speaker module and the second speaker module are sequentially disposed in a vertical direction, and a vibration direction of the first diaphragm is opposite to a vibration direction of the second diaphragm, so that momentum variations (mv) Δ of the speaker module are offset against each other, thereby resolving a problem that a vibration feeling is strong when the speaker module works.

Embodiments of this application disclose an electroacoustic transducer, including a center magnet, two first side magnets, two second side magnets, a voice coil, a voice diaphragm, and two flexible printed circuit boards. The two first side magnets are symmetrically arranged on two sides of the center magnet, and a first gap is formed between the first side magnet and the center magnet. One end of the voice coil is partially located in the first gap, and the voice diaphragm is fixedly connected to the other end of the voice coil. The two flexible printed circuit boards are symmetrically arranged on two sides of the center magnet. The electroacoustic transducer has comparatively high magnetic induction strength and comparatively high sensitivity.

The invention disclose a single-shrapnel bone conduction oscillator, comprising an embedded shrapnel-type bracket, a first combined bracket being snap-connected to a middle of a top of the embedded shrapnel-type bracket, and a second combined bracket being snap-connected an inside of the embedded shrapnel-type bracket, a voice coil being sleeved on an outer surface of the second combined bracket, a washer being placed inside the voice coil, a magnet being placed on a bottom portion of the washer, and a U-CUP being snap-connected to an bottom portion of the embedded shrapnel-type bracket. The invention has a simple structure. The invention adopts the single-shrapnel type design provided, when the oscillator adds an electric signal, the first combined bracket is fixed with the front shell of the headset to generate vibration, and the magnetic circuit is fixed in the embedded shrapnel bracket. The front shell of the headset generates reverse vibration, which cancels the sound produced by the vibration of the main body. Thereby solve the problem of sound leakage after the bone conduction oscillator is installed as an earphone. Thus, the sound leakage defect of the headset is perfectly improved, the quality of the headset is improved, and the user's experience is enhanced.

A micro-speaker includes a frame body, a diaphragm arranged on the frame body, a magnetic structure and a voice coil arranged in the frame body. An upper end of the voice coil is fixed to the diaphragm. The magnetic structure is arranged under the voice coil. A voice coil balancing system is provided in the frame body, which is composed of two symmetrically arranged dampers and two symmetrically arranged elastic members, which are paired and respectively arranged at mounting portions under two opposite ends of a long axis of the frame body and fixed with glue. Each of the two dampers is made of a flexible circuit board, including a first end, a second end and a cantilever connecting the first end and the second end. A ratio of a length L of the cantilever to a distribution distance D of the cantilever is between 2-15.

A micro-speaker includes a frame body, a diaphragm on the frame body, a magnetic structure and a voice coil in the frame body. An upper end of the voice coil is fixed to the diaphragm. The magnetic structure is arranged under the voice coil. A voice coil balancing system is provided in the frame body, which is composed of two symmetrically arranged dampers, which are respectively arranged under two ends of a long axis of the voice coil and fixed with glue. Each of the dampers is made of a flexible circuit board, including a first end, a second end and a cantilever connecting the first end and the second end. A ratio of a length L of the cantilever to a distribution distance D of the cantilever is between 2-15.

The present disclosure relates to a speaker and a magnetic circuit system thereof. The speaker includes a housing and at least one magnetic circuit system and at least one vibration system arranged in the housing. The at least one vibration system includes at least one layer of drive circuit configured to generate mechanical motion under the action of a magnetic field of the at least one magnetic circuit system, and a diaphragm driven by the at least one layer of drive circuit. The at least one layer of driving circuit is mounted to the diaphragm and has a planar shape. Since the driving circuit of the vibration system has a planar shape, the thickness of the speaker of the present disclosure can be effectively reduced.

The present disclosure relates to a bone conduction speaker and its compound vibration device. The compound vibration device comprises a vibration conductive plate and a vibration board, the vibration conductive plate is set to be the first torus, where at least two first rods inside it converge to its center; the vibration board is set as the second torus, where at least two second rods inside it converge to its center. The vibration conductive plate is fixed with the vibration board; the first torus is fixed on a magnetic system, and the second torus comprises a fixed voice coil, which is driven by the magnetic system. The bone conduction speaker in the present disclosure and its compound vibration device adopt the fixed vibration conductive plate and vibration board, making the technique simpler with a lower cost; because the two adjustable parts in the compound vibration device can adjust both low frequency and high frequency area, the frequency response obtained is flatter and the sound is broader.

Provided is a speaker, including a frame; a vibration unit fixed to the frame; and a magnetic circuit unit driving the vibration unit to vibrate and provided with a magnetic gap. The vibration unit includes a diaphragm fixed to the frame and a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound; an outer periphery of the diaphragm bends and extends to form at least one fixing portion; and the at least one fixing portion extends along a vibrating direction of the diaphragm and is attached to an inner peripheral side of the frame. With this structure, the bonding strength of the frame and the diaphragm is improved, the diaphragm does not occupy an outer space of the frame, and an appearance size of the speaker is effectively controlled, thereby facilitating the miniaturization design.

Disclosed is a speaker driver from which surrounding (suspension) has been omitted, including a magnet unit disposed in a set form, a vibration unit disposed adjacent to the magnet unit and generating a sound through vibration, and a winding unit disposed between the magnet unit and the vibration unit in a winding shape, generating magnetism in a first direction or a second direction which is a direction opposite to the first direction when power is applied to the winding unit, and vibrating the vibration unit by applying, to the vibration unit, a force generated in association with magnetism of the magnet unit.

The present invention relates to a hybrid movable coil plate and a flat panel speaker, and more particularly, to a hybrid movable coil plate and a flat panel speaker which have improved acoustic pressure of the speaker by attaching a coil pattern printed on one surface of the movable coil plate and a copper wire coil wound on the other surface to increase inductive electromotive force. A hybrid movable coil plate for a flat panel speaker is characterized by including a spirally wound copper wire coil attached on one surface thereof and a PCB coil pattern-printed on the other surface thereof, wherein the copper wire coil and the PCB coil are formed in track shapes, a pair of lead wire connection ends are formed, and copper foils are formed in one or more via holes for electrical connection between the copper wire coil and the PCB coil, and in the vicinity of at least one among the one or more via holes.