Pseudo edge-wound winding using single pattern turn

Patent metadata

Field	Value
Publication number	US-10062497-B2
Application number	US-201615096028-A
Country	US
Kind code	B2
Filing date	Apr 11, 2016
Priority date	Feb 17, 2014
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A winding system may include a plurality of metal plates including the same shape and size, such that the plates are stacked, and each of the plurality of metal plates is reversely positioned with respect to a gap pattern in an adjacent one of the plurality of metal plates. The plates are simultaneously brazed together while flow of molten brazing material is constrained by grooves formed on brazing tabs of the plates.

First claim

We claim:

1. An electrical coil comprising:
a plurality of metal plates;
wherein the plates have brazing tabs;
wherein grooves are in surfaces of the brazing tabs;
wherein the plurality of metal plates are in a stacked configuration and brazed together, with brazing material, at only one point near a gap between their respective brazing tabs;
wherein the brazing material does not extend beyond outer peripheries of the brazing tabs;
wherein the grooves are only spaced around the outer peripheries of the brazing tabs such that the grooves act as reservoirs for excess molten brazing material when molten brazing material flows across the surfaces of the brazing tabs and approaches the outer peripheries of the brazing tabs;
wherein each of the grooves of one brazing tab are opposed and offset to each of the grooves of another brazing tab that oppositely faces the one brazing tab; and
wherein a plurality of interface lugs are attached to a partial portion of the metal plates in a zig-zag pattern.

2. The electrical coil of claim 1 wherein unbrazed surfaces of the plates are coated with electrical insulating material.

3. The electrical coil of claim 1 wherein two or more of the metal plates have the same shape and size.

4. The electrical coil of claim 1 , wherein the plurality of metal plates are configured to encircle a transformer core.

5. The electrical coil of claim 1 , wherein the plurality of plates are made of an electrically conductive material.

6. The electrical coil of claim 1 , wherein a gap pattern forms a zig-zag pattern on one end of one of the plurality of metal plates.

Assignees

• Honeywell Int Inc

Inventors

• Chen Keming
• Ganev Evgeni
• Warr William

Classifications

• H01F27/2847 Primary

  Sheets; Strips (H01F27/2866 takes precedence) · CPC title

• H01F27/303

  Clamping coils, windings or parts thereof together · CPC title

• H01F41/12

  Insulating of windings ({impregnating or encapsulating of transformers H01F41/005} ; of conductors in general H01B13/06) · CPC title

• Y10T29/49073

  by assembling coil and core · CPC title