14 results about "Electrostatic loudspeaker" patented technology

To provide an electrostatic speaker capable of maintaining high fidelity sound quality output even in a wide range of sound. [Solution] The electrostatic speaker includes an electrostatic sound generating diaphragm unit consisting of two parallel, spaced-apart electrode plates (1) and a diaphragm (2) between the electrode plates. The surface of the electrode plate facing the diaphragm is coated with a conductive layer, and both sides of the diaphragm are also coated with conductive layers. A voltage is applied to the conductive layers of the electrode plate and the diaphragm. Hollow sound-emitting holes are uniformly formed in the electrode plate, and an insulating buffer layer (3) is filled between the electrode plate and the diaphragm. Even if the applied high-voltage electric field voltage causes the diaphragm to distort due to excessive amplitude, the insulating buffer layer limits the diaphragm's amplitude, preventing distortion. The insulating buffer layer also prevents contact between the diaphragm and the electrode plate and maintains an appropriate minimum distance, preventing destructive discharges caused by too close a distance between the diaphragm and the electrode plate. This prevents the appearance of high-voltage discharge noise and prevents the diaphragm from being damaged by high-voltage discharge.

The multi-layer electrostatic loudspeaker provided by the present invention comprises a case, which accommodates a plurality of pairs of receiving tanks, between every pair of the receiving tanks is a gap; a first electrode layer, which is disposed in the receiving tank of the case; an auxiliary first electrode layer, which is disposed in the receiving tank of the case, wherein the receiving tank is vertically beneath the first electrode layer, a side away from the first electrode layer is disposed a central dielectric layer; and a second electrode layer, which is disposed in the receiving tank of the case, wherein the receiving tank is vertically beneath the first electrode layer.

Aspects of the present disclosure relate to an electrostatic speaker system (225), a vehicle audio system (200) including the electrostatic speaker system (225), and a vehicle (300) including the vehicle audio system (200). An electrostatic speaker system (225) includes a voltage conversion module (245) and an electrostatic transducer (230). The voltage conversion module (245) is configured to: receive a low voltage "speaker level" signal (220) from a vehicle audio source (205); and converts the received low voltage loudspeaker level signal (220) into a high voltage audio signal (220a). The electrostatic transducer (230) is configured to receive a high voltage audio signal (from the voltage conversion module) and to convert the high voltage audio signal (220a) into sound waves for output by the electrostatic speaker system (225). The voltage conversion module (245) comprises at least one audio transformer (250) configured to boost a voltage of the low voltage loudspeaker level signal (220) to a predefined voltage level for the high voltage audio signal (220a).

The utility model belongs to loudspeaker technical field discloses a kind of electrostatic loudspeaker and electronic equipment, electrostatic loudspeaker includes shell, first polarity structure, second polarity structure, vibration structure. First polarity structure is equipped with at least one, first polarity structure is set in shell;Second polarity structure is equipped with at least one, second polarity structure is set in shell, and second polarity structure and first polarity structure are along first direction vibration structure alternately arranged;When one of the two of first polarity structure and second polarity structure includes electrode layer, the other of the two includes electret layer;First direction vibration structure is the thickness direction of shell;Vibration structure is set in shell, and vibration structure is conductor;The inner periphery of vibration structure is connected to second polarity structure, and the outer periphery of vibration structure is connected to shell. The electrostatic loudspeaker and electronic equipment provided by the utility model have long service life.

Aspects of the present invention relate to an electrostatic speaker system, a vehicle audio system comprising the electrostatic speaker system, and a vehicle comprising the vehicle audio system. The electrostatic speaker system comprises a voltage conversion module and an electrostatic transducer. The voltage conversion module is configured to receive a low-voltage ‘speaker-level’ signal from a vehicle audio source; and to convert the received low-voltage speaker-level signal to a high-voltage audio signal. The electrostatic transducer is configured to receive the high-voltage audio signal (from the voltage conversion module) and to convert this high-voltage audio signal into sound waves for output by the electrostatic speaker system. The voltage conversion module comprises at least one audio transformer configured to step-up the voltage of the low-voltage speaker-level signal to a predefined voltage level for the high-voltage audio signal.

The invention discloses a static MEMS loudspeaker for DSR and a manufacturing method thereof, the static MEMS loudspeaker comprises a sound reconstruction generation assembly and a driving assembly, the driving assembly is installed on one side of the sound reconstruction generation assembly, and the sound reconstruction generation assembly is in electric signal connection with the driving assembly; the sound reconstruction generation assembly comprises a substrate, a buried oxide layer, a first backboard, a first insulating layer, a first supporting layer, a vibrating diaphragm, a second supporting layer, a second insulating layer and a second backboard which are sequentially arranged from bottom to top. According to the invention, the composite diaphragm structure of the double back plates, the noise reduction ring and the buffer cone is adopted, so that the diaphragm rigidity of the loudspeaker is remarkably reduced, the vibration freedom degree is improved, the working efficiency of the loudspeaker is optimized, and the response time is shortened. In addition, residual stress among the multiple layers of films is reduced through titanium nitride, the possibility of warping of the structure is reduced, the working performance of the device is further improved, and the service life of the device is further prolonged.

The utility model discloses an electrostatic loudspeaker, which comprises a first electrode, a performance layer and a second electrode, the surface of the performance layer is coated with static charges; the first electrode or the second electrode is provided with a through hole used for transmitting the amplitude of the performance layer. The utility model further discloses sound production glass which comprises an outer glass plate, a first bonding layer, an inner glass plate and an electrostatic loudspeaker. According to the utility model, the sound production effect of the vehicle-mounted loudspeaker can be improved, a traditional vehicle-mounted loudspeaker is replaced, and the aesthetic degree of a vehicle is improved.

The utility model belongs to the technical field of loudspeakers, and particularly relates to an anti-static loudspeaker, which comprises a magnetic core, a basin stand and a cone basin which are sequentially arranged along the axial direction, the end face of the basin stand is provided with an annular electricity leading groove, the opening of the electricity leading groove is provided with a clamping piece, and a conducting ring and a grounding lead welded with the conducting ring are inserted in the electricity leading groove. One end of the grounding lead extends out of the electricity leading groove from the back of the basin frame, the extending part flexibly contacts the conducting ring and the grounding lead, and the outer edge of the cone basin penetrates through the clamping piece and extends into the electricity leading groove to be located in a closed space; in an installation state, grounding conduction of static electricity inside and outside the loudspeaker is taken into consideration, meanwhile, the abraded area of the cone basin is reduced, and the clamping piece comprises an inner ring piece and an outer ring piece which are fixed to the inner edge and the outer edge of the electricity leading groove respectively. According to the utility model, static electricity inside and outside the loudspeaker is grounded and conducted, the worn area of the cone is reduced, and the loudspeaker has excellent antistatic property and keeps good integrity at the same time.

The electrostatic loudspeaker includes two stator components 30. Each component comprises cladded printed circuit board (PCB) material including a flat dielectric substrate 24 with an electrically con

The invention relates to an electrostatic loudspeaker, a moving-coil loudspeaker and a device for processing audio signals, and belongs to the technical field of electroacoustics. According to the technical scheme provided by the invention, the amplitude distortion of the loudspeaker can be effectively reduced; for an electrostatic loudspeaker, the amplitude distortion of the loudspeaker can be reduced by carrying out first-order, second-order or third-order derivative solving operation on an input audio signal before the input audio signal is transmitted to two fixed polar plates of the loudspeaker, and the effect is the best when the second-order derivative solving operation is carried out; for a moving-coil loudspeaker, the amplitude distortion of the loudspeaker can be reduced by carrying out first-order, second-order, third-order, fourth-order or fifth-order derivative solving operation on an input audio signal before the input audio signal is transmitted to a voice coil of the loudspeaker, and the effect of carrying out the third-order derivative solving operation is relatively good; the technical scheme provided by the invention can be used for reducing the amplitude distortion of the loudspeaker in all equipment related to the loudspeaker so as to improve the sound restoring effect of the equipment.

The vehicle audio system 200 comprises an electrostatic speaker system 225. The electrostatic speaker system comprises a voltage conversion module 245 to receive a relatively low-voltage 'speaker-leve

The electrostatic speaker 210 is configured to be disposed within a vehicle interior component. The electrostatic speaker comprises an electrostatic transducer 220 and a speaker grille 230 configured

To provide an electrostatic speaker which can be implemented without using a piezo electric element.SOLUTION: The electrostatic speaker comprises: a case; a fixed interdigital electrode part fixed to the case and including a plurality of interdigitals; a movable interdigital electrode part including a plurality of interdigitals engaged with the respective interdigitals of the fixed interdigital electrode part via a space; a vibration film connected to the movable interdigital electrode part; and a board connected to the fixed interdigital electrode part.SELECTED DRAWING: Figure 1

The invention discloses a multi-stacked electrostatic loudspeaker, and belongs to the technical field of loudspeakers. A multi-stacked electrostatic loudspeaker comprises a shell, a supporting frame, a bias power supply and an audio signal amplifier are arranged in the shell, a vibrating diaphragm assembly and an electrode plate are arranged on the supporting frame, the vibrating diaphragm assembly and the electrode plate form an electrostatic unit, the bias power supply provides stable high-voltage direct current for the electrode plate, and the audio signal amplifier is arranged in the shell. The electrode plates are connected with an audio signal amplifier through a signal input interface. According to the multi-stacked electrostatic loudspeaker provided by the invention, the stacked vibrating diaphragm assemblies are arranged, the electrode plates are arranged on the two sides of the vibrating diaphragm assemblies, a plurality of electrostatic units are formed, each electrostatic unit is provided with an independent bias power supply and an independent audio signal amplifier, the working state of each unit is controlled, and better sound performance is realized; by setting different stacking modes, the performance of a traditional electrostatic loudspeaker is remarkably improved, and the requirements in different application scenes are met.