Aac Technologies Pte. Ltd.

Chinese Academy of Sciences

Aac Microtech (changzhou) Co, , Ltd.

Shenzhen Institutes of Advanced Technology

Netac Technology Co., Ltd.

Min Su

Hongjian Hu

Shuai Li

Hairong Zheng

Peng Wang

Hui Zhou

Zhiqiang Zhang

Lili Niu

Long Meng

Ming Qian

Yongchuan Li

Weibao Qiu

Tiejun Du

Ruibiao Guo

Jiqing Huang

Provided is a speaker, including frame, vibration unit, and magnetic circuit unit driving the vibration unit and having magnetic gap, the vibration unit including diaphragm fixed to the frame, voice coil component fixed to the diaphragm and driving the diaphragm, and lower voice diaphragm component supporting the voice coil component. The voice coil component includes voice coil inserted in the magnetic gap and holder fixed to the diaphragm and the voice coil, the voice coil includes first and second voice coil portions. The first voice coil portion is arranged close to the lower voice diaphragm component and is fixed to the lower voice diaphragm component through the holder. The first voice coil portion includes two first sides and second side connecting thereto, and the second voice coil portion protrudes away from the second side. The voice coil component has greater circumference than the racetrack voice coil, enabling better acoustic performance.

Speaker

A multi-row ultrasonic imaging apparatus and an ultrasonic imaging instrument are disclosed. The multi-row ultrasonic imaging apparatus includes a housing, and a first ultrasonic transducer, a second ultrasonic transducer, and an adjustment mechanism that are installed in the housing. Ultrasonic waves emitted by the first ultrasonic transducer and the second ultrasonic transducer can intersect to form a confocal point. At least one of the first ultrasonic transducer and the second ultrasonic transducer is connected to the adjustment mechanism to move relative to the housing under the action of the adjustment mechanism, so as to adjust the position of the confocal point.

Multi-row ultrasonic imaging apparatus and ultrasonic imaging instrument

Provided is a conscious animal ultrasonic neural regulation device, including a pulse signal generation module, a transducer module and a fixing module. The pulse signal generation module is configured to generate a pulse signal with high energy. The ultrasonic transducer module is configured to convert the pulse signal into an ultrasound. The fixing module includes an upper fixing module and a lower fixing module. The upper fixing module is configured to fix the ultrasonic transducer module, and the lower fixing module is configured to be fixed on an animal neural regulation target point. The upper fixing module and the lower fixing module are connected by a connecting component. The conscious animal neural regulation device of the present disclosure can perform accurate ultrasonic stimulation on a cerebral cortex and subcortex of the animal, thereby exploring and verifying the stimulation effect of the ultrasound on the animal, which is easy in operation and convenient in use.

Conscious animal ultrasonic neural regulation device

Flash disk

A speaker includes a holder and a vibration unit and a magnetic circuit unit fixed and held at the holder. The vibration unit includes: a first diaphragm and an elastic support located at an end of the voice coil facing away from the first diaphragm and elastically supporting the voice coil. The elastic support includes a flexible circuit board and a second diaphragm fixed and held at one side of the flexible circuit board facing away from the voice coil. The flexible circuit board is sandwiched between the voice coil and the second diaphragm and includes an upper surface fixed to the voice coil and a lower surface opposite to the upper surface. The second diaphragm is fixed to the lower surface by a binder, and the lower surface is recessed towards the upper surface to form a binder accommodation groove.

The present disclosure relates to a voice coil, a method for winding the voice coil, and a speaker having the voice coil. The voice-coil winding is wound from an inner side to an outer side of the voice coil to form an N-layer structure. Each layer is wound to form a multi-coil structure. A winding switching portion is disposed between at least one group of neighboring two layers. Two terminals of the winding switching portion are respectively located at the top and the bottom of the voice coil. One terminal of the winding switching portion is connected to a winding ending terminal of an inner side one of the neighboring two layers, and the other terminal of the winding switching portion is connected to a winding starting terminal of the outer side one of the neighboring two layers.

Voice coil, method for winding voice coil, and speaker having voice coil

The present disclosure relates to the field of sound production, and provides a diaphragm including a dome and a suspension surrounding the dome. The dome includes a first surface fixedly connected to the suspension, and a second surface disposed opposite to the first surface and facing away from the suspension. The dome is provided with a through hole in communication with the first surface and the second surface, and the through hole is adjacent to edges of the dome but does not reach the edges of the dome. The present disclosure further provides a speaker including the diaphragm. The diaphragm and the speaker according to the present disclosure have the advantages of ensuring the strength of the dome while ensuring the leakage of the glue inside the speaker.

Diaphragm and speaker

A speaker includes a frame, and a vibration system and a magnetic circuit system that are fixed on the frame. The vibration system includes a first vibration diaphragm fixed to the frame, a voice coil disposed on a side of the first vibration diaphragm and configured to drive the first vibration diaphragm to vibrate to produce sound, and an elastic support part for the elastic support coil. The elastic support part includes a flexible printed circuit board connecting the voice coil to an external circuit.

Provided is a speaker, including a holder, a vibration unit and a magnetic circuit unit, and a holder pad. The vibration unit includes a first diaphragm, a voice coil configured to drive the first diaphragm to vibrate and emit sound, and a flexible circuit board. The holder includes a bottom surface facing away from the first diaphragm, and the flexible circuit board is fixed to the bottom surface. The holder pad is arranged correspondingly to the flexible circuit board and sandwiched between the bottom surface and the flexible circuit board. The holder pad includes a first pad electrically connected to the flexible circuit board, a second pad exposed out of the holder, and a connection portion connecting the first pad with the second pad. The first pad is electrically conducted with the second pad, and the second pad is connected to an external circuit.

Growing community of inventors

Shenzhen, China

Min Su