10 results about "Electrodynamic loudspeaker" patented technology

The invention relates to an electrodynamic loudspeaker (10) comprising a device (22) for suspending a diaphragm (20) and a coil (18), which device can be translated along a longitudinal axis (Z) and which comprises: - a peripheral suspension (44) extending radially relative to the longitudinal axis (Z) between a proximal edge (50) and a distal edge (52) linked to an outer frame (12) of the loudspeaker; - an intermediate connection device (46) between the outer frame (12) and the diaphragm (20) along the longitudinal axis (Z), and extending along said axis between a lower base (54) to which is attached the proximal edge (50), and an upper base (56), and radially relative to said axis, between an inner circumference (58) rigidly connected to the coil (18), and an outer circumference (60) rigidly connected to the diaphragm (20); and - an inner suspension (48) extending radially relative to the longitudinal axis (Z) between a proximal contour (72) attached to an inner frame (74) rigidly connected to the outer frame (12), and a distal contour (70) attached to the upper base (56).

The utility model relates to an electrodynamic loudspeaker, which comprises a cone frame, a cone arranged on the inner side of the cone frame, a magnetic circuit assembly arranged at the bottom of the cone frame, a guide cylinder connected with the bottom of the cone, a voice coil wound outside the guide cylinder, and a dust cover arranged on the cone and positioned above the guide cylinder, the periphery of the guide cylinder is coaxially sleeved with an annular elastic centering disk, and the centering disk is fixedly connected with the inner wall of the basin stand through the outer edge of the centering disk to form a radial suspension structure. Two conductive leads are led out of the voice coil, the two conductive leads are bonded and fixed on the upper surface of the centering support chip through glue, and the conductive leads extend to the outside of the basin frame through the outer edge of the centering support chip and form electrical connection terminals. According to the utility model, the conductive lead is firmly bonded on the centering disk through the adhesive, thereby avoiding the problem of lead loosening or fracture caused by vibration, and improving the electrical connection reliability of the whole loudspeaker system.

The present invention relates to an acoustic loading device for an electrodynamic loudspeaker, enabling the control of unwanted displacements of the sound cone, resulting in low distortion for good acoustic efficiency. According to the device, the loudspeaker (0) is mounted in a sealed enclosure (10), the assembly forming the acoustic enclosure. The loudspeaker (0) is provided with an internal flat ring (CP), positioned approximately at mid-height of the sound cone (1), forming a small variable active loading volume (CA) in the upper, unperforated portion of the basket (2F). The lower portion of the basket (2A) is perforated, allowing the passage of sound waves to the acoustic suspension volume (VA) formed by the sealed enclosure (10). The flat ring (CP) is characterized by its central opening (D), the diameter of which allows the passage and linear displacement, forward (AV) or backward (AR), of the sound cone (1), forming an internal variable-opening vent (OV).Figure for the abridged version: Fig. 1.

A magnet assembly for an electrodynamic loudspeaker driver, comprising a first outer pair of axially magnetized, permanent ring magnets, having a first thickness and a second inner pair of axially magnetized, permanent ring magnets, having a second thickness less than the first thickness, the face of the first inner magnet facing the second inner magnet being offset by a predefined offset distance (Δy) relative to the face of the first outer magnet facing the second outer magnet, and the face of the second inner magnet facing the first inner magnet being offset by the predefined offset distance (Δy) relative to the face of the second outer magnet facing the first outer magnet.

The utility model relates to a belt type earphone loudspeaker, belongs to the loudspeaker technical field, and specifically refers to a press-fitting belt type earphone loudspeaker comprising a pair of bench covers, one side of each bench cover is fixedly provided with a fixed bench, and each bench cover and the corresponding fixed bench are in threaded connection with a plurality of fixing bolts; an aluminum strip is fixedly installed in the middle of the fixing table, a pair of pressing strips is fixedly installed on one side of the fixing table through fixing bolts, and copper foil is jointly bonded between the pressing strips and the aluminum strip. According to the utility model, the effects of reducing faults such as poor contact and the like and improving the drivability and audio characteristics of the aluminum strip earphone are achieved, the problem that the audio playing effect is realized through the arranged vibrating diaphragm assembly and voice coil in the prior art is solved, and the earphone is similar to a transmission electrodynamic loudspeaker. A voice coil and a vibrating diaphragm are separately arranged, so that the earphone is relatively heavy in overall weight and relatively large in size, and is not beneficial to long-time wearing and use.

Aspects of the present invention relate to a control system (100) for a vehicle (400). The control system (100) 5 comprises one or more processors (120) collectively configured to receive a signal (145) indicative of a change in a power consumption level at which one or more electrodynamic speakers (310), (320) of an audio system (300) of the vehicle (400) is to be operated, wherein the change is from a first power consumption level to a second power consumption level lower than the first level. The one or more processors (120) are collectively configured to determine, in dependence on the received signal (145), a mode of operation of one or more 10 haptic modules (200) disposed in one or more seating assemblies (210) of the vehicle (400) and to output a signal (155) to control the one or more haptic modules (200) to implement the determined mode. The output of the one or more haptic modules (200) operating in the determined mode provides one or more vibrational effects and the output of the one or more electrodynamic speakers (310), (320) operating at the lower power consumption level provides an audio effect. The determined mode of operation of the one or more haptic 15 modules (200) provides a combination of the audio effect and the one or more vibrational effects that is associated with a higher audio quality than an audio quality associated with the audio effect.

A true wireless device is provided. The true wireless device includes a modulator for generating ultrasonic waves and a MEMS speaker coupled to the modulator. The MEMS speaker provides greater bandwidth than traditional speakers such as electrodynamic speakers and piezoelectric thin-film speakers. In particular, the MEMS speaker has an audio frequency band and an ultrasonic frequency band.

The invention discloses an electrodynamic loudspeaker, and belongs to the technical field of loudspeakers, the electrodynamic loudspeaker comprises a basin stand installed on a broadcasting device and a skeleton installed on the basin stand, the skeleton is sleeved with a voice coil, a damper is installed between the basin stand and the skeleton, a T-shaped iron is installed below the skeleton in an embedded manner, and the T-shaped iron is connected with the voice coil. The T-shaped iron is sleeved with magnetic steel, a washer is installed between the magnetic steel and the basin frame, and the washer is sleeved with the voice coil. A paper cone is arranged on the framework, and a dustproof cover is embedded in the center of the paper cone; a lower heat dissipation channel and an upper heat dissipation channel are formed in the framework, the diameter of the upper heat dissipation channel is smaller than that of the lower heat dissipation channel, and a heat dissipation mechanism communicated with the upper heat dissipation channel to assist heat dissipation is arranged on the dustproof cover; through the heat dissipation mechanism, heat in the loudspeaker can be effectively assisted to be discharged outwards, the rigidity of the framework in a high-temperature state can be enhanced, secondary resonance caused by deformation of the framework is avoided, and the tone quality effect of the loudspeaker is improved.

Electrodynamic loudspeaker comprising a damping ring. The electrodynamic loudspeaker (10) comprises: - a fixed chassis (12); - a motor (13) having a fixed base (14) connected to the fixed chassis (12) and an assembly (16) movable axially relative to the fixed base (14) along an axis of the loudspeaker (AA'); - a convex diaphragm (18); - a lattice (20) connecting the convex diaphragm (18) and the movable assembly (16). A peripheral edge (44) of the convex diaphragm (18) is mounted on the lattice (20), and the electrodynamic loudspeaker (10) further comprises a damping ring (70) connecting an internal radial portion (73) of the convex diaphragm (18) and the lattice (20). Figure for the abbreviation: Figure 1

The electrodynamic loudspeaker (10) comprises: - a fixed frame (12); - a motor (13) comprising a fixed base (14) connected to the fixed frame (12) and a moving assembly (16) which is axially movable relative to the fixed base (14) along an axis (A-A') of the loudspeaker; - a convex diaphragm (18); - a lattice (20) connecting the convex diaphragm (18) and the moving assembly (16). A peripheral edge (44) of the convex diaphragm (18) is mounted on the lattice (20) and the electrodynamic loudspeaker (10) further comprises a damping ring (70) connecting an inner radial portion (73) of the convex diaphragm (18) and the lattice (20).