US 2002/0117327 A1 · Structure and method of lead wire connection, and clad material for lead wire connection

Abstract

An electroacoustic transducer 1 includes a base 24 made of a magnetic material, a magnetic core 22 made of a magnetic material and erected on the base 24, and a diaphragm 20 made of a magnetic material and supported with a space distanced from the top end of the magnetic core 22. The base 24, the magnetic core 22 and the diaphragm 20 form a magnetic circuit. The electroacoustic transducer 1 includes a magnet 25 supplying a static magnetic field, and a coil 23 supplying an oscillation magnetic field to the magnetic circuit. A lead wire 23a (23b) of the coil 23 and a connection land 50a (50b) are electrically connected by resistance welding or thermal welding with the lead wire 23a (23b) held between the connection land 50a (50b) and a cover member 52a (52b).

Claims6

Dependent claims

A structure of lead wire connection comprising:

a lead wire covered with an electrical insulating coating;
a land portion electrically connected to the lead wire;
and
a cover member disposed in opposition to the land portion with the lead wire held between the land portion and the cover member;
wherein the cover member and the lead wire are electrically connected by resistance welding;
and
the lead wire and the land portion are also electrically connected by resistance welding.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/080,680Filed 25 Feb 2002

Priority

JP P. 2001-05510728 Feb 2001

Published

29 Aug 2002

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H01R 43/0228
For soldered or welded connections: without preliminary removing of insulation before soldering or welding
H04R 1/06
Details of transducers, loudspeakers or microphones: arranging circuit leads; Relieving strain on circuit leads
H04R 13/00
Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
Y10T 29/49126
On flat or curved insulated base, e.g., printed circuit, etc.: assembling bases

Structure and method of lead wire connection, and clad material for lead wire connection

Life of this patent

Structure and method of lead wire connection, and clad material for lead wire connection

Life of this patent

Abstract

Claims6