Electrodynamic sound transducer

US10117025B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10117025-B2
Application numberUS-201515319078-A
CountryUS
Kind codeB2
Filing dateJun 11, 2015
Priority dateJun 18, 2014
Publication dateOct 30, 2018
Grant dateOct 30, 2018

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An electrodynamic sound transducer has a diaphragm, a dome and a surround and a voice coil. The sound transducer further has a first magnet ring and a second magnet ring as part of the magnet system, the first magnet ring and second magnet ring being arranged on opposite sides of the diaphragm. The voice coil is coupled with the diaphragm and is arranged approximately on or outside of the circumference of the first magnet ring and second magnet ring.

First claim

Opening claim text (preview).

The invention claimed is: 1. An electrodynamic sound transducer comprising: a diaphragm forming a closed surface, the diaphragm comprising: a dome; and a surround; a voice coil that is fastened to the diaphragm; a first magnet ring defining a first plane on one side of the diaphragm; a second magnet ring defining a second plane on a second side of the diaphragm; wherein the voice coil or the dome is arranged between the first plane and second plane; wherein a magnetization direction of the first magnet ring is opposite to a magnetization direction of the second magnet ring; wherein the first magnet ring is beveled at a side facing the diaphragm, and the second magnet ring is beveled at a side facing the diaphragm, and beveled sides of the first and second magnet rings are adapted to a geometry of the diaphragm; wherein, in cross section, the beveled side of the first magnet ring is parallel to the beveled side of the second magnet ring; and wherein an inner diameter of the voice coil substantially corresponds to an outer diameter of the first magnet ring, an outer diameter of the second magnet ring, or both. 2. The electrodynamic sound transducer according to claim 1 ; wherein the first magnet ring is arranged in a resonator and the second magnet ring is arranged on a frame. 3. The electrodynamic sound transducer according to claim 1 ; wherein a diameter of the first magnet ring corresponds to a diameter of the second magnet ring. 4. The electrodynamic sound transducer according to claim 1 ; wherein the diaphragm has a flat dome or a flat coil seat. 5. The electrodynamic sound transducer according to claim 1 ; wherein at least one of the voice coil and a lead thereof is printed on the diaphragm.

Assignees

Inventors

Classifications

  • dome-shaped · CPC title

  • Loudspeakers · CPC title

  • H04R9/025Primary

    Magnetic circuit · CPC title

  • H04R9/047Primary

    in which the windings of the moving coil lay in the same plane · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US10117025B2 cover?
An electrodynamic sound transducer has a diaphragm, a dome and a surround and a voice coil. The sound transducer further has a first magnet ring and a second magnet ring as part of the magnet system, the first magnet ring and second magnet ring being arranged on opposite sides of the diaphragm. The voice coil is coupled with the diaphragm and is arranged approximately on or outside of the circu…
Who is the assignee on this patent?
Sennheiser Electronic Gmbh & Co Kg
What technology area does this patent fall under?
Primary CPC classification H04R9/025. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Oct 30 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).