Systems and methods electrically connect a sealed speaker and speaker back volume without wires. An electronic device includes a speaker with a first and second speaker contacts, a speaker box coupled with the speaker, and a printed circuit board (PCB) having a first and second contact pads. A speaker gasket is positioned between the speaker and the speaker box to form a seal. First and second spring strips electrically connect the first and second contact pads to the first and second speaker contacts, respectively, and each has a flat, thin cross-section in at least a portion extending between the speaker gasket and the speaker box. The first and second spring strips do not adversely affect the seal, do not require glue or sealer, and electrically connect with the first and second contact pads as the enclosure of the electronic device is closed.

A miniature sound generator includes a vibration system including a first diaphragm, a voice coil supporting and driving the first diaphragm to vibrate, and a second diaphragm arranged at one side of the voice coil far away from the first diaphragm and elastically supporting the voice coil; a fixing system fixed with the second diaphragm. The fixing system includes a frame supporting the second diaphragm and a magnetic circuit system arranged in the frame. The second diaphragm includes an insulating body and a conductive framework formed in the insulating body for electrically connecting with the voice coil and an external circuit.

A miniature sound generator includes a vibration system including a first diaphragm, a voice coil supporting and driving the first diaphragm to vibrate, and a second diaphragm arranged at one side of the voice coil far away from the first diaphragm and elastically supporting the voice coil; a fixing system fixed with the second diaphragm. The fixing system includes a frame supporting the second diaphragm and a magnetic circuit system arranged in the frame. The second diaphragm includes an insulating body and a conductive framework formed in the insulating body for electrically connecting with the voice coil and an external circuit.

A loudspeaker includes: a non-perforated membrane having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction opposite to the forward direction, a magnet unit configured to provide a magnetic field in a predetermined region of space, a voice coil rigidly connected to the membrane, and configured to produce in use a magnetic field which interacts with the magnetic field provided by the magnet unit in the predetermined region of space so as to move the membrane along a longitudinal axis of the loudspeaker, a lead wire configured to input a signal to the voice coil. The lead wire is guided to the voice coil via one or more deformed holders. The lead wire remains at a single surface of the membrane without perforating the latter.

A loudspeaker includes: a non-perforated membrane having a front surface facing in a forward direction for producing sound to be radiated outwardly from the loudspeaker in the forward direction and a back surface facing in a backward direction opposite to the forward direction, a magnet unit configured to provide a magnetic field in a predetermined region of space, a voice coil rigidly connected to the membrane, and configured to produce in use a magnetic field which interacts with the magnetic field provided by the magnet unit in the predetermined region of space so as to move the membrane along a longitudinal axis of the loudspeaker, a lead wire configured to input a signal to the voice coil. The lead wire is guided to the voice coil via one or more deformed holders. The lead wire remains at a single surface of the membrane without perforating the latter.

A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film, flexible circuit boards, a connecting rack, and a voice coil. The flexible circuit boards are disposed at intervals with the sound film. The connecting rack is connected with the sound film and the flexible circuit boards. The voice coil is fixed to the connecting rack. The voice coil includes a first voice coil and a second voice coil, and the second voice coil surrounds outside the first voice coil. The speaker of the present disclosure effectively solves the problem of supplying power to the first voice coil during the voice coil driving. The voice coil driving effectively improves the BL, provides a larger driving force, and improves sensitivity, so that performance of the speaker is better.

The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support s assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.

A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film and a voice coil. The voice coil drives the sound film to vibrate and sound. The magnetic circuit system includes a lower clamping plate, a first magnetic steel, and a second magnetic steel. The first magnetic steel is disposed on the lower clamping plate. The annular second magnetic steel is disposed on the lower clamping plate and surrounds the first magnetic steel. The first magnetic steel and the second magnetic steel are disposed at intervals to form a first gap. The speaker has better performance.

The present invention provides an acoustic device including a frame, a vibration system and a magnetic circuit system. The vibration system includes a diaphragm, a voice coil, a voice coil holder connecting the diaphragm and the voice coil, and a support assembly connecting the frame and the voice coil holder. The voice coil holder comprises a first fixing portion extending toward a direction of the voice coil, a second fixing portion extending toward to the support assembly, and a first connecting portion connecting the first fixing portion and the second fixing portion. The first fixing portion is mounted to the voice coil, and the second fixing portion is mounted to the support assembly. The first connecting portion provides with a reinforcing rib protruding and extending from the first fixing portion.

A directional microphone system includes a microphone assembly designed to be mounted from a ceiling or other raised surface through a reeling mechanism used to deploy the microphone assembly to a lowered position, preferably just above eye level of a speaker. The microphone assembly includes an outer housing encapsulating multiple audio detection elements or capsules which are specifically angled relative to each other and the horizontal in order to optimize targeted audio reception. With a preferred arrangement, three audio detection (microphone) elements are secured through with a wishbone frame mounted in the outer housing, with each element being at about a 60° angle to the horizontal to provide enhanced horizontal coverage.