The present application discloses a miniature speaker, including: a frame; a vibration system positioned on the frame; a magnetic circuit system for driving the vibration system. The vibration system includes a first diaphragm fixed to the frame, a second diaphragm, and a voice coil for driving the first diaphragm to produce sounds. The second diaphragm includes a suspension, a first fastening portion fixed to the frame, a second fastening portion fixed to the voice coil at an end away from the first diaphragm. The suspension includes a main suspension and a pair of auxiliary suspensions extending from two edges of the main suspension along a length direction of the main suspension. A width of the main suspension is greater than a width of the auxiliary suspension. The rigidity of the second suspension is improved, and the lateral swing of the vibration system is suppressed.

The invention relates to a suspension device for a loudspeaker, comprising an annular outer edge that is able to fasten the suspension device to a frame, an annular inner edge that is able to fasten the suspension device to a membrane, a suspension hoop that extends annularly between the edges, said suspension hoop being able to absorb movement stresses produced at the inner edge by means of a deformation that thus forms a resonance mode, the suspension hoop comprising at least one annular protuberance that is positioned so as to minimize the at least one resonance mode of the suspension hoop, the mass of the at least one annular protuberance being between 150% and 400% the mass of a part of the suspension hoop on which the at least one annular protuberance is positioned.

In an embodiment, an electronic device 1 has a panel 20, a housing 10 that holds the panel 20, and a piezoelectric element 30 installed on the rear side of the panel 20, wherein the piezoelectric element 30 is installed at a position that allows for the vibration amplitude of the panel 20 to become the highest on the side closer to the center of the panel 20 in the longitudinal direction from the installed position of the piezoelectric element 30. The electronic device is capable of causing an entire panel to vibrate in a stable manner.

A sound-producing device is provided with at least two groups of dampers on the voice coil which are respectively arranged at a first position close to and a second position away from the vibrating diaphragm; the at least two groups of the dampers include at least a first damper and a second damper; the first damper has a first connecting part connected to the voice coil and a second connecting part fixed on the sound-producing device; a planar elastic member is provided between the first and the second connecting parts, which is bent and extends from the first to the second connecting part, and is coplanar with the first connecting part; the second damper has a first fixing part connected to the voice coil and a second fixing part fixed on the sound-producing device; there is provided a corrugated connecting arm between the first and the second fixing parts.

A vibration unit for an acoustic arrangement includes an encircling frame, a vibration member, and a weaving suspension extended between the vibration member and the encircling frame for enabling the vibration member to be reciprocatingly moved. The weaving suspension includes a plurality of reinforcing ribs radially and outwardly extended from the vibration member to the encircling frame to form a weaving-like structure, such that the vibration member is prohibited to move along a rib extending direction of each of the reinforcing ribs to ensure the vibration member to be reciprocatingly moved in a linear direction.

Certain aspects of the technology disclosed herein involve an apparatus and method of operation for an audio device having a perforated diaphragm. Perforations extend along a plane of the perforated diaphragm. A driver is attached to the perforated diaphragm. The driver includes a voice coil. The driver is configured to cause the perforated diaphragm to vibrate. Vibrations in areas between parallel perforations act as independent audio sources.

A suspension element coupled to a diaphragm and to a frame of an acoustic device. The suspension element includes a first surround element and a second surround element that are located adjacent to each other. At least one of the surround elements includes at least one or more openings. The at least one or more openings have features of being located at an edge of the at least one of the surround elements adjacent to the other surround element, or being located in both of the surround elements.

An electronic device has an exterior housing with a piezoelectric speaker disposed in an opening formed within the housing. The piezoelectric speaker includes a speaker diaphragm that is secured within the opening with a vibration isolator. The vibration isolator allows the diaphragm to vibrate independently from the housing.

The invention relates to a suspension device for a loudspeaker, comprising an annular outer edge that is able to fasten the suspension device to a frame, an annular inner edge that is able to fasten the suspension device to a membrane, a suspension hoop that extends annularly between the edges, said suspension hoop being able to absorb movement stresses produced at the inner edge by means of a deformation that thus forms a resonance mode, the suspension hoop comprising at least one annular protuberance that is positioned so as to minimize the at least one resonance mode of the suspension hoop, the mass of the at least one annular protuberance being between 150% and 400% the mass of a part of the suspension hoop on which the at least one annular protuberance is positioned.

A suspension element coupled to a diaphragm and to a frame of an acoustic device. The suspension element includes a first surround element and a second surround element that are located adjacent to each other. At least one of the surround elements includes at least one or more openings. The at least one or more openings have features of being located at an edge of the at least one of the surround elements adjacent to the other surround element, or being located in both of the surround elements.