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

Magnetic yoke for hearing aid and moving iron unit

A technology for hearing aids and magnetic yokes, applied in hearing aids, electrical components, etc., can solve the problems of magnetic loss, diaphragm vibration and sound defects, etc., and achieve the effect of reducing magnetic field loss, high degree of authenticity and restoration, and accurate vibration

Active Publication Date: 2018-04-20
KNOWLES IPC M
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There will be a loss of magnetic force, resulting in flaws in the vibration of the diaphragm

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
  • Magnetic yoke for hearing aid and moving iron unit
  • Magnetic yoke for hearing aid and moving iron unit
  • Magnetic yoke for hearing aid and moving iron unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention discloses that the present invention provides a magnetic yoke for generating accurate vibration and a moving iron unit including the magnetic yoke.

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0018] The invention provides a magnetic yoke, which consists of a plurality of square ring-shaped sheets stacked one after another, the uppermost 2-4 ring-shaped sheets are not closed, and gaps are left; the ring-shaped sheets in the middle position are arranged on the periphery Ther...

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 provides a magnetic yoke for a hearing aid, which consists of a plurality of square ring-shaped sheets stacked one after another. piece. The connection mechanism of the present invention is actually located in the magnetic field of the yoke, so the position of the armature connected by the connection mechanism is also located in the magnetic field of the yoke, which reduces the loss of the magnetic field and makes the vibration of the diaphragm more accurate. The moving iron unit using this yoke has a higher degree of realism and reproduction of the sound.

Description

technical field [0001] The invention relates to the technical field of hearing aids, in particular to a magnetic yoke for hearing aids and a moving iron unit. Background technique [0002] The yoke usually refers to a soft magnetic material that does not produce a magnetic field (magnetic force line) itself, and only transmits the magnetic force line in the magnetic circuit. The yoke is generally made of soft iron, A3 steel and soft magnetic alloy with relatively high magnetic permeability. In some special Occasionally, the yoke is also made of ferrite materials. [0003] In the existing hearing aid structure, a general magnetic yoke is formed by welding 6 to 10 iron sheets of the same shape. In the prior art, the magnetic yoke is made of high magnetic permeability material. Its function is to constrain the magnetic force lines generated by the induction coil to scatter outward, so that the magnetic force lines are concentrated on the yoke, which mainly plays a role of magn...

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): H04R25/00
Inventor 钱晓晨骆兴顺
Owner KNOWLES IPC M