The invention provides a multifunctional sounding device having a housing body with a containment cavity and a sounding unit. The sounding unit includes a vibration system and a magnetic circuit system that drives the vibration system along a first direction. The magnetic circuit system includes a main magnet and a secondary magnet to form a magnetic gap. The multifunctional sounding device further includes an elastic assembly fixedly connected to the housing body, a weight connected to the elastic assembly, and a driving coil fixed to the weight and vibrating together with the weight along a second direction. The driving coil includes a first side edge and a second side edge disposed opposite to the first side edge. The device has both a vibration feedback function and a voice feedback function, which is beneficial to reduce the volume of the electronic device.

An electronic device including a structure to shield magnetic force is provided. The electronic device includes a housing having a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a side member for enclosing a portion of a space between the first surface and the second surface, a first electronic component positioned inside the housing and including magnets positioned to emit a magnetic flux in the first direction or the second direction, a second electronic component positioned inside the housing and including a magnet for emitting a magnetic flux in the first direction or the second direction and being positioned beside one side surface of the first electronic component in a substantially vertical direction to the first direction or the second direction, and a shield structure is positioned between the first electronic component and the second electronic component.

A sound generator including a housing having a first wall portion with a housing opening, a shielding element covering at least a portion of the first wall portion and having a shield opening, where the shielding element covers a portion of the first wall portion.

A method including providing a magnet pot, where the magnet pot comprises a bottom portion and at least one projection extending up from the bottom portion forming a magnet location area, where the at least one projection has first and second portions located on opposite sides of the magnet pot, and where the first and second portions have outer sides with a first distance therebetween; and connecting a frame with the magnet pot, where the frame includes first and second opposite side walls, where the first and second opposite side walls of the frame have outer sides with a second distance therebetween, where the first distance is substantially the same as the second distance, and where the outer sides of the first and second portions of the at least one projection are respectively located at the outer sides of the first and second opposite side walls of the frame.

An apparatus comprising: at least one magnetic shielding plate located between a transducer and an exterior of the apparatus with at least one conduit configured to permit sound to pass through the cover, wherein the at least one magnetic shielding plate is configured to form a trap for particles.

In one embodiment, there is described a new transducer, and in particular an improved system and method for producing linear motion for a transducer such as used in voice coils converting from an electrical input to a mechanical linear motion input.

Magnetic field cancelling audio speakers and associated devices are disclosed. In one embodiment, a utility locator includes an audio speaker device with two loudspeaker drivers positioned and electrically connected to reduce emitted magnetic fields over a range of frequencies corresponding with locator sensing frequencies.

A bone conduction device configured to couple to an abutment of an anchor system anchored to a recipient's skull. The bone conduction device includes a vibrating electromagnetic actuator configured to vibrate in response to sound signals received by the bone conduction device, and a coupling apparatus configured to attach the bone conduction device to the abutment so as to impart to the recipient's skull vibrations generated by the vibrating electromagnetic actuator. The vibrating electromagnetic actuator includes a bobbin assembly and a counterweight assembly. Two axial air gaps are located between the bobbin assembly and the counterweight assembly and two radial air gaps are located between the bobbin assembly and the counterweight assembly. No substantial amount of the dynamic magnetic flux passes through the radial air gaps.

An apparatus includes a horn bracket, a magnet system and a vibration system, where the horn bracket includes a through hole configured for positioning the magnet system, the magnet system includes an inner magnetic ring and an outer magnetic ring sleeved on an exterior of the inner magnetic ring, the inner magnetic ring is coaxial with the outer magnetic ring, a gap is provided between an inner annular surface of the outer magnetic ring and an outer annular surface of the inner magnetic ring, where the inner annular surface and the outer annular surface have opposite magnetic polarities, magnetic flux lines formed in the gap by the outer magnetic ring and the inner magnetic ring are radially disposed, the vibration system includes a voice diaphragm, a voice coil having one end coupled to the voice diaphragm, and a winding coupled to the other end of the voice coil.

This application provides a mobile terminal including a first magnet and a second magnet. At least a part of the first magnet and at least a part of the second magnet are disposed in the accommodating space. The first magnet is disposed on a back facet of the display module, the second magnet is disposed on the middle frame, and positions of the first magnet and the second magnet are disposed opposite to each other. The first magnet is a coil, and the second magnet is a main magnet; or the first magnet is a main magnet, and the second magnet is a coil. The main magnet is a Halbach array, and the main magnet generates a unilateral magnetic field on a side opposite to the coil.