Coil device, and method for producing same

Patent metadata

Field	Value
Publication number	US-9478335-B2
Application number	US-201213984166-A
Country	US
Kind code	B2
Filing date	Feb 9, 2012
Priority date	Feb 9, 2011
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

A coil device ( 1 ) comprising a coil winding ( 3 ) for an electromagnetic actuating device or an electromagnetic sensor, having a winding wire ( 11 ) which has an insulating element and which is ran to at least one contacting element ( 5, 15 ) that is designed as a metal part, in particular a stamped part, and a stripped section of the winding wire is received at the contacting element between the contacting element ( 5, 15 ) and a metal cover ( 6 ) and fused to the contacting element ( 5, 15 ). A recess ( 8 ) is impressed into the contacting element ( 5, 15 ), the recess receiving the winding wire ( 11 ) in some sections and being designed with a winding wire inlet geometry.

First claim

The invention claimed is:

1. A coil device comprising a coil winding having an insulated winding wire which is led to at least one contacting element wherein a stripped section of the winding wire is received at the contacting element between the contacting element and a metal cover and is fused to the contacting element, the contacting element has a recess, said recess receives the winding wire sectionally and being designed with a winding wire inlet geometry, the metal cover has a lower surface side free of impression, facing the winding wire stripped section received in the recess facing away from the winding wire section, the recess has a cross section, wherein the cross section is tapered in a direction to an end of the winding wire associated with the contacting element.

2. The coil device according to claim 1 , wherein the contacting element is secured on a plastic carrier carrying the coil winding, and is bent outside the plastic carrier through up to 90°.

3. The coil device according to claim 1 , wherein the metal cover is a metal plate separate from the contacting element before fusing and is bent into the position covering the recess.

4. An electromagnet actuating device comprising a coil device comprising a coil winding having an insulated winding wire which is led to at least one contacting element wherein a stripped section of the winding wire is received at the contacting element between the contacting element and a metal cover and is fused to the contacting element, the contacting element has a recess, said recess receives the winding wire sectionally and being designed with a winding wire inlet geometry, the recess has a cross section, wherein the cross section is tapered in a direction to an end of the winding wire associated with the contacting element.

Assignees

• Bechler Matthias
• Eto Magnetic Gmbh

Inventors

• Bechler Matthias

Classifications

• H01F41/10

  Connecting leads to windings (making electric connections in general H01R43/00) · CPC title

• B23K35/00

  Rods, electrodes, materials, or media, for use in soldering, welding, or cutting · CPC title

• Y10T29/49071

  by winding or coiling · CPC title

• H01F5/04 Primary

  Arrangements of electric connections to coils, e.g. leads · CPC title

• H01F2007/062

  Details of terminals or connectors for electromagnets · CPC title