An electronic device is provided. The electronic device includes a housing including a front plate, a rear plate disposed to be spaced a predetermined distance apart from the front plate in parallel, and a side plate surrounding a space formed between the front plate and the rear plate, an opening disposed between an upper edge of the front plate and the side plate, a speaker including a sound radiation part in a direction of being directed toward the front plate and disposed inside the housing, a support member disposed to extend from the sound radiation part toward the upper edge of the front plate, and a pipeline including a space formed between the front plate and the support member. The pipeline may include a first structure disposed adjacent to the sound radiation part and a second structure disposed adjacent to the opening, and the second structure may be disposed to be spaced a predetermined length apart from the first structure in a direction of forming an acute angle with respect to a reference line orthogonal to the upper edge.

Disclosed herein is a speaker. The speaker includes: an enclosure provided in a rectangular parallelepiped shape; a speaker unit mounted on at least one face of the enclosure; and a partition provided inside the enclosure and partitioning a space, wherein the partition divides a space inside the enclosure, and a space starting from the speaker unit has an asymmetrical cross section of a tunnel structure.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include an acoustic output component and a supporting structure forming an acoustically open structure that allows the acoustic output component to acoustically communicate with the surroundings. The acoustic output component may include a plurality of acoustic drivers, each of which may be configured to output a sound with a frequency range. At least one of the acoustic drivers may include a magnetic system for generating a first magnetic field. The magnetic system may include a first magnetic component for generating a second magnetic field and at least one second magnetic component. A magnetic gap may be formed between the first magnetic component and the at least one second magnetic component. A magnetic field intensity of the first magnetic field in the magnetic gap may be greater than that of the second magnetic field in the magnetic gap.

An electronic device is provided, and includes a housing, an acoustical component, and a communication support. The housing has an inner cavity, and the acoustical component is disposed in the inner cavity. The housing is provided with a first sound guide channel. The acoustical component is provided with a first installation groove. A bottom wall of the first installation groove is provided with a sound guide opening. The communication support is provided with a second sound guide channel. A first end of the communication support is disposed in the first installation groove. The sound guide opening is in communication with the first sound guide channel through the second sound guide channel. A part, between the housing and the acoustical component, of the communication support, is a flexible connection section.

A display apparatus includes a display, and an acoustic unit connected to a sound source to transmit sound, wherein the acoustic unit includes a first cavity extending from the sound source in a first direction in which the sound is emitted, and a second cavity extending in a second direction that is different from the first direction, the second cavity being connected with the first cavity.

A playback device comprises an electroacoustic transducer; an acoustic waveguide in fluid communication with the transducer; and a housing delimiting an opening of the waveguide, the opening extending around an axis passing through the transducer. The opening may have a radial distance from the axis that varies with an azimuthal angle about the axis. An acoustic path length within the waveguide, between the transducer and the opening, is substantially constant and independent of azimuthal angle about the axis.

The present disclosure discloses an acoustic output apparatus including at least one acoustic driver, a controller, and a supporting structure. The at least one acoustic driver may be configured to output sounds through at least two sound guiding holes. The at least two sound guiding holes may include a first sound guiding hole and a second sound guiding hole. The controller may be configured to control a phase and an amplitude of the sounds generated by the at least one acoustic driver using a control signal such that the sounds output by the at least one acoustic driver through the first and second sound guiding holes have opposite phases. The supporting structure may be provided with a baffle and configured to support the at least one acoustic driver such that the first and second sound guiding holes are located on both sides of the baffle.

A speaker device is used while being attached to a helmet, and includes a speaker unit that outputs a sound, a speaker housing that includes a back wall portion covering the speaker unit from a back side, and in which a space between a back surface of the speaker unit and the back wall portion is formed as an output space for the sound output from the back surface of the speaker unit, and a duct whose internal space is communicated with the output space and that guides, to an outside of the helmet, the sound output to the output space, in which a distance between the back surface of the speaker unit and the back wall portion is smaller than a distance of the internal space of the duct in a direction in which the duct guides the sound.

The present disclosure provides an acoustic output apparatus. The acoustic output apparatus may include an acoustic output component and a supporting structure forming an acoustically open structure that allows the acoustic output component to acoustically communicate with the surroundings. The acoustic output component may include a plurality of acoustic drivers, each of which may be configured to output a sound with a frequency range. At least one of the acoustic drivers may include a magnetic system for generating a first magnetic field. The magnetic system may include a first magnetic component for generating a second magnetic field and at least one second magnetic component. A magnetic gap may be formed between the first magnetic component and the at least one second magnetic component. A magnetic field intensity of the first magnetic field in the magnetic gap may be greater than that of the second magnetic field in the magnetic gap.

The present disclosure discloses a loudspeaker apparatus. The loudspeaker apparatus comprises a core housing for accommodating the earphone core; a circuit housing for accommodating a control circuit that drives the earphone core to vibrate to generate a sound, wherein the sound includes at least two resonance peaks; an ear hook for connecting the core housing and the circuit housing; a key arranged at a keyhole on the circuit housing, wherein the key moves relative to the keyhole to generate a control signal for the control circuit; and an elastic pad arranged between the key and the keyhole, wherein the elastic pad hinders a movement of the key towards the keyhole. In the present disclosure, by providing an elastic pad between the key and the keyhole, the waterproof effect of the loudspeaker apparatus may be improved, and the space occupied by the key may be reduced.