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Title: Micro-channel heat exchanger for stator of electrical machine with supply header

Abstract

An electric machine has a stator that comprises a plurality of laminations with teeth and cooling apertures about a central opening. When the laminations are stacked to form the stator core, the teeth of adjacent laminations cooperate to form slots disposed circumferentially about the central opening that are configured to receive a plurality of stator windings, and the cooling apertures angularly spaced about the central opening cooperate to form cooling manifolds that extend along a length of the stator core. A portion of the laminations has their cooling apertures offset from other laminations in the stack in a manner to create a plurality of flow paths transverse to the manifolds. The transverse flow paths extend angularly between laminations and adjacent manifolds. A header assembly directs flow into and out of the stator core.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Baldor Electric Company, Fort Smith, AR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531933
Patent Number(s):
9,419,479
Application Number:
14/208,747
Assignee:
Baldor Electric Company (Fort Smith, AR)
DOE Contract Number:  
AR0000191
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014-03-13
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING

Citation Formats

Shoykhet, Boris A., Meyer, Andreas A., Schiferl, Richard F., Dong, Qimin, and Brinkmann, Michael. Micro-channel heat exchanger for stator of electrical machine with supply header. United States: N. p., 2016. Web.
Shoykhet, Boris A., Meyer, Andreas A., Schiferl, Richard F., Dong, Qimin, & Brinkmann, Michael. Micro-channel heat exchanger for stator of electrical machine with supply header. United States.
Shoykhet, Boris A., Meyer, Andreas A., Schiferl, Richard F., Dong, Qimin, and Brinkmann, Michael. Tue . "Micro-channel heat exchanger for stator of electrical machine with supply header". United States. https://www.osti.gov/servlets/purl/1531933.
@article{osti_1531933,
title = {Micro-channel heat exchanger for stator of electrical machine with supply header},
author = {Shoykhet, Boris A. and Meyer, Andreas A. and Schiferl, Richard F. and Dong, Qimin and Brinkmann, Michael},
abstractNote = {An electric machine has a stator that comprises a plurality of laminations with teeth and cooling apertures about a central opening. When the laminations are stacked to form the stator core, the teeth of adjacent laminations cooperate to form slots disposed circumferentially about the central opening that are configured to receive a plurality of stator windings, and the cooling apertures angularly spaced about the central opening cooperate to form cooling manifolds that extend along a length of the stator core. A portion of the laminations has their cooling apertures offset from other laminations in the stack in a manner to create a plurality of flow paths transverse to the manifolds. The transverse flow paths extend angularly between laminations and adjacent manifolds. A header assembly directs flow into and out of the stator core.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {8}
}

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Works referenced in this record:

Motor/generator with equalized coolant distribution
patent, February 2003


Lamination cooling system formation method
patent, May 2009


Electric motor assemblies with coolant flow for concentrated windings
patent, May 2009