A speaker in the present disclosure includes a magnetic circuit having a magnetic gap, a frame fixed to the magnetic circuit, a voice coil disposed in the magnetic gap, a cylindrical bobbin around which the voice coil is formed, and a diaphragm configured so that the inner circumferential side of the diaphragm is fixed to the bobbin and the outer edge of the diaphragm is supported by the frame with an edge member intervening therebetween. The diaphragm has an elliptical shape that is non-axisymmetric with respect to a center axis passing through the center of the bobbin. The diaphragm is formed by vacuum molding of a sheet-like raw material (thermoplastic CFRP sheet) in which long-fiber fillers are oriented in one direction in a thermoplastic resin. The orientation of the long-fiber fillers is set so as to match the short-axis direction of the diaphragm.

An audio speaker enclosure assembly that includes a first enclosure portion, a second enclosure portion, a speaker magnet, and a cone assembly. The first enclosure portion has a magnet receiving structure with the speaker magnet being fully installed and supported therein. The second enclosure portion has a main wall with an opening. The cone assembly is installed to the main wall with a cone portion of the cone assembly extending through the opening such that a coil portion of the cone assembly extends into a gap of the speaker magnet. The first enclosure portion supports the speaker magnet and the second enclosure portion supports the cone assembly independent of the first enclosure portion with the first and second enclosure portions attached to one another.

A speaker is provided in the present disclosure. The speaker includes a magnetic circuit system, a vibration system and an auxiliary system suspending the vibration system above the magnetic circuit system. The magnetic circuit system comprises a yoke, permanent magnets assembled on the yoke, and a magnetic gap near the permanent magnets. The yoke comprises an upper surface for assembling the permanent magnets, a lower surface opposite to the upper surface, side surfaces connecting the upper surface and the lower surface, and communication conduits extending through the upper surface and the side surface to communicate the magnetic gap and the space outside the speaker.

A speaker is provided in the present disclosure. The speaker includes a magnetic circuit system for providing magnetic field, a diaphragm, a suspension, a drive mechanism and a horizontal former, which is retained on the surface of the diaphragm directly facing the magnetic circuit system. The diaphragm is suspended above the magnetic circuit system for generating sound by vibrating. The suspension is used to suspend the diaphragm above the magnetic circuit system. The drive mechanism is disposed under the diaphragm and can interact with the magnetic circuit system so as to drive the diaphragm to vibrate in order to generate sound. The horizontal former is retained on the surface of the diaphragm directly facing the magnetic circuit system, wherein the horizontal former is provided with a communication space which communicates the space under the diaphragm and the space under the suspension.

An audio speaker having a voicecoil running along a diaphragm surface, and a magnetic array, e.g., a Halbach array, configured to direct a magnetic field toward the voicecoil to drive the diaphragm and generate sound. In an embodiment, multiple Halbach arrays are used to drive the same voicecoil winding or to drive separate, respective voicecoil windings on the diaphragm surface. Other embodiments are also described and claimed.

Disclosed is an electrical-acoustic transformation device, including: a vibration system and a magnetic circuit system with a magnetic gap; wherein the vibration system includes: a diaphragm, a voice coil provided below the diaphragm and suspending in the magnetic gap, a piezoelectric plate provided on one side of the diaphragm, a first frequency division circuit connected to the voice coil, and a second frequency division circuit connected to the piezoelectric plate; and the first frequency division circuit performs frequency division on an externally input first audio signal and outputs same to the voice coil; and the second frequency division circuit performs frequency division on an externally input second audio signal to obtain a high frequency signal to drive the piezoelectric plate. The present invention provides an electrical-acoustic transformation device with super wideband.

A double-sided speaker, comprising a magnetic conductive carrying plate, an auxiliary magnetic conductive member, a side magnetic conductive member, a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first vibrating component, and a second vibrating component. The magnetic conductive carrying plate comprises a sidewall and a bottom plate. One side surface of the bottom plate comprises a first side edge and a second side edge opposite to the first side edge. The sidewall is disposed at the first side edge. The auxiliary magnetic conductive member is assembled to the second side edge. The side magnetic conductive member is disposed at a side edge of another side surface of the bottom plate. The first magnetic circuit module is disposed at one side of the magnetic conductive carrying plate, of which the second magnetic circuit module is disposed at another side.

An actuator, including an electric drive for converting electrical signals into mechanical forces and/or deflections, is disclosed. The drive having at least one coil through which the current of the electrical signal can flow and having at least two magnets which can electromagnetically interact with the coil. The actuator being designed to excite a body which can be connected to the actuator, in particular a flat body, to vibrate, as a result of which the body can emit acoustic sound. The two magnets each being assigned at least one pole plate, the first and the second magnet, each with the at least one associated pole plate, forming at least one first and one second magnetic pole plate packet and the actuator having a frame in which the two magnetic pole plate packets are arranged in a substantially form-fitting manner.

Several embodiments of the instant invention incorporate a loudspeaker design utilizing hard magnetic poles and yokes. The magnetic field of the loudspeaker is created and guided with a series of critically formed hard magnetic structures guiding the magnetic field from the primary magnet to the gap in a loop of hard magnetic material, replacing the soft magnetic materials normally used. Magnetization of the components of the hard magnetic loudspeaker driver with radial pole patternsa yoke radial magnet, a washer pole magnet and a yoke upper ring magnetis performed with these components in their final assembly relationships.

A loudspeaker includes a diaphragm body having a dome shape protruding upwardly, a magnetic circuit disposed below the diaphragm body, a voice coil coupled to the diaphragm body, an edge coupled to an outer circumference of the diaphragm body, and a frame coupled to the edge. The edge includes a first coupling portion provided at an outer circumference of the edge, a second coupling portion provided at an inner circumference of the edge and coupled to an outer circumference of the diaphragm body, and a roll portion disposed between the first coupling portion and the second coupling portion. The edge has a surface facing downward. The frame has a connecting surface disposed below the second coupling portion and coupled to the surface of the edge at the first coupling portion of the edge. This loudspeaker can decrease distortion of sound.