Unlock instant, AI-driven research and patent intelligence for your innovation.

Vibration transducer

A vibration sensor, vibrating diaphragm technology, applied to sensors, sensor parts, contact microphone transducers, etc., can solve the problems of inconvenience of bone conduction speakers, inability to simultaneously receive vibration sensitivity and abandon environmental noise, etc. Increased amplitude and output effects, reduced constraints, reduced power consumption effects

Inactive Publication Date: 2012-11-21
陈奚平
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the structure of bone conduction speakers in the prior art, there is still a common problem that bone conduction speakers need a dedicated amplifier circuit and power supply, which is very inconvenient for bone conduction speakers used in portable devices
However, the existing bone conduction microphones with similar structures cannot meet the requirements of receiving vibration sensitivity and rejecting environmental noise at the same time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vibration transducer
  • Vibration transducer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 with figure 2 As shown, a vibration sensor, the bottom of which is a disc-shaped yoke as the bottom plate 3, a magnet 2 is fixed in the center of the yoke bottom plate 3, the two together form a magnetic field circuit, and the supporting parts 4 made of four elastic sheets are evenly distributed It is fixed on the edge of the bottom plate 3, and a curved part 5 is provided near the top of the supporting part 4 to increase the elastic effect. The four ends of the vibrating diaphragm 7 are respectively fixed on the tops of the four supporting parts 4. The vibrating film The part near the edge on the sheet 7 is provided with a corrugated part 6, the purpose is also to facilitate the selection of the material of the vibrating diaphragm and reduce the damping of vibration. Cooperate with the conversion of electrical signal changes into magnetic field changes to drive the diaphragm to vibrate, the vibrating diaphragm drives the vibrating plate to vibrate an...

Embodiment 2

[0030] Such as image 3 As shown, a vibration sensor, the bottom is a disc-shaped bottom plate 3, and the bottom plate 3 is also used as a vibration plate to increase the vibration part. The support part 4 made of elastic sheet is fixed on the bottom of the bottom plate 3 and extends upward. The pieces 7 are fixed together, and the top of the support member 4 is provided with a corrugated part 9 for increasing the elastic effect at the part connected to the vibrating membrane 7, and the magnet 2 is fixed below the vibrating membrane 7 through the connecting block 10, and the magnet 2 and the yoke The iron 13 and the two together form a central magnetic pole and an annular magnetic pole 12 surrounding the central magnetic pole (it can also be formed by a yoke iron). The coil 1 is located between the central magnetic pole and the ring-shaped magnetic pole to cut the magnetic force line, and drives the vibrating diaphragm 7 to vibrate up and down.

[0031] In Embodiment 2, the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a vibration sensor, comprising a shell body, a piece of magnet which is arranged in the shell body and a yoke which cooperates with the magnet to form a magnetic loop. Supporting parts are around the shell body, which are fixed with diaphragm. A vibration plate is arranged on the diaphragm. A coil is arranged in the magnetic loop to drive the diaphragm to vibrate or produce induced current caused by the vibration of the diaphragm. The invention is characterized in that the supporting parts adopt elastic structure. By changing the supporting parts into elastic elements,the invention reduces restriction to the diaphragm, effectively enhances amplitude and output effect or induction to vibration of the vibration sensor, reduces power consumption and is helpful to theapplication of the vibration sensor on miniature portable equipment.

Description

technical field [0001] The invention relates to a vibration sensor, in particular to a vibrating sensor that is attached to the user's head and transmits the audio vibration signal through the skull so that the user can hear the sound or can convert the vibration signal generated when the user speaks through the transmission of the skull into Vibration sensor for electrical signal. Background technique [0002] A bone conduction speaker is a device that converts electrical signals into vibrations and transmits the vibrations to the ossicles through bones, and existing bone conduction speakers have various structures. The existing bone conduction speakers mainly have the problems of large speaker size, small amplitude and large power supply capacity to meet the needs. [0003] For this reason, a kind of bone conduction sensor and bone conduction headset are disclosed in Chinese invention patent 01808206.8. The bone conduction sensor includes: a plate-shaped yoke that is ben...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04R23/00H04R1/46
Inventor 陈奚平
Owner 陈奚平