A device, including an electromagnetic transducer including a bobbin having a space therein, a connection apparatus in fixed relationship to the bobbin configured to transfer vibrational energy directly or indirectly at least one of to or from the electromagnetic transducer, and a passage from the space to the connection apparatus.

Provided is a speaker device, including a first frame, a first vibration system, a magnetic circuit system, a second frame, a second vibration system, a second voice coil, and a conductive member electrically connected to the second voice coil. The magnetic circuit system includes a lower splint, a first main magnetic steel, a first sub-magnetic steel, a pole core, a second main magnetic steel, and a second sub-magnetic steel. A magnetization direction of the first sub-magnetic steel is the same as that of the second sub-magnetic steel, a magnetization direction of the first main magnetic steel is the same as that of the second main magnetic steel, and the magnetization direction of the second main magnetic steel is opposite to that of the second sub-magnetic steel. Compared with the related art, the speaker device of the present invention has good acoustic performance.

The present disclosure relates to an earphone (100), comprising a shell assembly (10) and an air-conducting loudspeaker (12). The shell assembly (10) is provided with an accommodation cavity (1001 and 1002) and a sound outlet hole (1080) for connecting the accommodation cavity (1001 and 1002) to an external environment. The air-conducting loudspeaker (12) includes a magnetic circuit assembly (120), a voice coil (122), and a vibration diaphragm (123). The magnetic circuit assembly (120) includes a shield (121) having an open end (1211), and an annular flange (1212) that is disposed at the open end (1211) of the shield (121) and protrudes from an outer periphery surface of the shield (121). A rim of the vibration diaphragm (123) is fixed to the annular flange (1212) and the vibration diaphragm (123) covers the open end (1211) of the shield (12). The voice coil (122) is connected to the vibration diaphragm (123), and the vibration diaphragm (123) is disposed on a side of the shield (121) away from the sound outlet hole (1080). Through the above design, the present disclosure can effectively improve the spatial utilization of the shell assembly (10), reduce the overall volume of the entire shell assembly (10), and also effectively enhance the sound quality.

The present disclosure relates to a loudspeaker assembly comprising a shell assembly, a bone-conducting loudspeaker, an air-conducting loudspeaker, and a circuit system. The shell assembly includes a first accommodation cavity and a second accommodation cavity. The bone-conducting loudspeaker is accommodated in the first accommodation cavity and the air-conducting loudspeaker is accommodated in the second accommodation cavity. The air-conducting loudspeaker includes a magnetic circuit system that includes a magnet and a magnetic conduction assembly. The magnet is fixed on the magnetic conduction assembly, the magnetic conduction assembly is fixed in the second accommodation cavity, and the magnetic conduction assembly is provided with a weight reduction structure.

The present disclosure relates to a vibration transmission sheet (113), a bone-conducting loudspeaker (11), and an earphone (100). The vibration transmission sheet (113) comprises a central fixing portion (1131) manufactured from a processed sheet, an annular fixing portion (1132) around a periphery of the central fixing portion (1131), and a linkage assembly (1133) connected between the central fixing portion (1131) and the annular fixing portion (1132). An inner ring edge (1132a) of the annular fixing portion (1132) has a first direction (W1) and a second direction perpendicular (W2) to each other. The linkage assembly (1133) includes two linkages (1134). Each of the two linkages (1134) includes an outer edge (1135) toward the inner ring edge (1132a) and an inner edge (1136) away from the inner ring edge (1132a). An extension component of the outer edge (1135) extends along the first direction (W1) is greater than or equal to one-half of a dimension of the inner ring edge (1132a) along the first direction (W1). A width of the linkage (1134) is greater than or equal to one-tenth of a dimension of the inner ring edge (1132a) along the second direction (W2). By adopting the above design, the extension length of the linkage (1134) can be effectively increased, thereby improving the durability and lifespan of the linkage (1134).

A motor for an electrodynamic loudspeaker and an electrodynamic loudspeaker including the motor. The motor includes a magnetic circuit assembly arranged about a motor axis. The motor includes: a magnetically permeable top plate, a magnetically permeable bottom plate, a magnetically permeable member disposed between, and magnetically coupled to, the magnetically permeable top and bottom plates, a center pole piece and an air gap for receipt of a voice coil. The motor also includes an outwardly projecting magnetically permeable member, or hat, arranged above a top of the air gap. The center pole piece includes a permanent magnet, such as a Neodymium magnet or a Ferrite magnet, extending axially from at least the bottom of the air gap to a magnetically permeable bottom member or to the magnetically permeable bottom plate.

The present disclosure relates an earphone, comprising a shell assembly, a bone-conducting loudspeaker, and a fixing adhesive. The shell assembly is provided with an accommodation cavity. The bone-conducting loudspeaker is accommodated in the accommodation cavity. The bone-conducting loudspeaker is configured to vibrate along a central axis direction of the bone-conducting loudspeaker. The shell assembly and/or the bone-conducting loudspeaker is provided with a locating portion. The locating portion is configured to maintain a predetermined gap between an inner peripheral surface of the shell assembly and an outer peripheral surface of the bone-conducting loudspeaker along a radial direction of the bone-conducting loudspeaker. The fixing adhesive is filled in the predetermined gap and configured to connect the shell assembly to the bone-conducting loudspeaker. The present disclosure facilitates the adhesive fixation of the internal parts of the earphone and reduces the difficulty of assembling the earphone.

Magnetic field cancelling audio systems and associated devices are disclosed. In one embodiment, an audio system with two electromagnetic audio drivers positioned and electrically connected to reduce emitted magnetic fields over a range of predefined frequencies.

A double-sided sounding device is disclosed. The double-sided sounding device includes an upper vibration system and a lower vibration system. The upper vibration system includes an upper voice coil, and the lower vibration system includes a lower voice coil. The upper voice coil includes a first voice coil and a second voice coil respectively arranged on two opposite sides of the lower voice coil along a direction of a long axis of the double-sided sounding device. The double-sided sounding device reduces the product width, has symmetrical electromagnetic force performances of the upper voice coil and the lower voice coil, and eliminates mutual interferences between the upper voice coil and the lower voice coil when working.

An headphone is provided. The headphone includes a housing assembly provided with a socket; and a wearing assembly including a wire assembly and an insert member, the insert member including an insert body configured to be inserted into the socket, the wire assembly is threaded through the insert body and has an exposed portion that is exposed from an inner end surface of the insert body facing an interior of the housing assembly, and the insert member further includes an annular rib protruding from the inner end surface, the annular rib being provided around the exposed portion such that an inner annular surface of the annular rib forms a first glue slot at a periphery of the exposed portion. In the above manner, a sealing effect of the wire and the insert member of the headphone is achieved.