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Title: Micro-channel heat exchanger integrated into stator core of electrical machine

Abstract

An electric machine has a stator that comprises a plurality of laminations with an outer periphery, and each of the laminations has teeth about a central opening such that when the laminations are stacked side-by side to form the stator core, the plurality of teeth of adjacent laminations cooperate to form slots disposed circumferentially about the central opening that are configured to receive a plurality of stator windings. Each of the laminations has a plurality of cooling apertures angularly spaced about the central opening. The cooling apertures of adjacent laminations 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 path transverse to the manifolds and angularly between laminations and adjacent manifolds.

Inventors:
Issue Date:
Research Org.:
Baldor Electric Company, Fort Smith, AR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532164
Patent Number(s):
9,362,788
Application Number:
13/827,560
Assignee:
Baldor Electric Company (Fort Smith, AR)
DOE Contract Number:  
AR0000191
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013-03-14
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Shoykhet, Boris A. Micro-channel heat exchanger integrated into stator core of electrical machine. United States: N. p., 2016. Web.
Shoykhet, Boris A. Micro-channel heat exchanger integrated into stator core of electrical machine. United States.
Shoykhet, Boris A. Tue . "Micro-channel heat exchanger integrated into stator core of electrical machine". United States. https://www.osti.gov/servlets/purl/1532164.
@article{osti_1532164,
title = {Micro-channel heat exchanger integrated into stator core of electrical machine},
author = {Shoykhet, Boris A.},
abstractNote = {An electric machine has a stator that comprises a plurality of laminations with an outer periphery, and each of the laminations has teeth about a central opening such that when the laminations are stacked side-by side to form the stator core, the plurality of teeth of adjacent laminations cooperate to form slots disposed circumferentially about the central opening that are configured to receive a plurality of stator windings. Each of the laminations has a plurality of cooling apertures angularly spaced about the central opening. The cooling apertures of adjacent laminations 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 path transverse to the manifolds and angularly between laminations and adjacent manifolds.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {6}
}

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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