Arrangement for cooling of an electrical machine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02K-009/00
H02K-009/06
H02K-001/32
H02K-003/24
H02K-005/18
H02K-005/20
출원번호
US-0606226
(2009-10-27)
등록번호
US-8299663
(2012-10-30)
우선권정보
EP-08018797 (2008-10-28)
발명자
/ 주소
Eriksen, Uffe
Gundtoft, Soeren
출원인 / 주소
Siemens Aktiengesellschaft
인용정보
피인용 횟수 :
1인용 특허 :
6
초록▼
An arrangement for cooling an electrical machine is provided. The electrical machine includes a rotor and a stator, an air-gap being between the rotor and the stator. The stator includes a plurality of stacked laminate-plates. The laminate-plates include on a first side, which is facing the air-gap,
An arrangement for cooling an electrical machine is provided. The electrical machine includes a rotor and a stator, an air-gap being between the rotor and the stator. The stator includes a plurality of stacked laminate-plates. The laminate-plates include on a first side, which is facing the air-gap, a plurality of slots containing metal-windings of a stator-coil. The laminate-plates are positioned and fixed by a structural support and by end-plates in relation to a central-part of the stator. A joint cavity is formed by the end-plates, the central-part of the stator and an internal surface of the laminate-plates. The internal surface is defined by a second side of the laminate-plates, the second side being opposite to the first side. The cavity is coupled with an air-cooling-arrangement, which is arranged and used to circulate a cooling gaseous medium from the cavity to the air-gap and the laminate-plates back into the cavity.
대표청구항▼
1. Arrangement for cooling of an electrical machine, comprising: an electrical machine with a rotor and a stator, an air-gap between the rotor and the stator, the stator including a plurality of stacked laminate-plates, wherein the laminate-plates include on a first side, which is facing the air-gap
1. Arrangement for cooling of an electrical machine, comprising: an electrical machine with a rotor and a stator, an air-gap between the rotor and the stator, the stator including a plurality of stacked laminate-plates, wherein the laminate-plates include on a first side, which is facing the air-gap, a plurality of slots containing metal-windings of a stator-coil, andthe laminate-plates are positioned and fixed by a structural support and by end-plates in relation to a central-part of the stator to achieve the air-gap;wherein the stator comprises a joint cavity formed by the end-plates, the central-part of the stator and an internal surface of the laminate-plates, the internal surface being defined by a second side of the laminate-plates which is opposite to the first side,wherein the joint cavity of the stator comprises a fan which circulates a gaseous medium from the cavity through openings of the end-plates to the air-gap, passing winding-heads of the stator-coil,circulates the gaseous medium from the air-gap through opening of the stacked laminate-plates back into the cavity, andwherein the joint cavity of the stator comprises a heat exchanger for cooling the gaseous medium, wherein the heat exchanger is located inside the joint cavity. 2. The arrangement according to claim 1, wherein the rotor is an outer rotor and the stator is an inner stator. 3. The arrangement according to claim 1, wherein the stator is connected via bearings with the rotor. 4. The arrangement according to claim 1, wherein the heat exchanger is built as a shell-and-tube heat-exchanger. 5. The arrangement according to claim 1, wherein the heat-exchanger is connected via two channels with an ambience for allowing ambient air to be used for the cooling-purposes. 6. The arrangement according to claim 4, wherein the heat-exchanger is connected via two channels with an ambience for allowing ambient air to be used for the cooling-purposes. 7. The arrangement according to claim 1, wherein the central-part of the stator extends along a rotational axis of the rotor. 8. The arrangement according to claim 1, wherein the stator-coils exceed the slots of the laminate-plates to form the winding-heads of the stator-coil. 9. The arrangement according to claim 1, wherein the electrical machine is a generator. 10. The arrangement according to claim 5, wherein a first channel is used as air-inlet, while a second channel is used as air-outlet. 11. The arrangement according to claim 10, wherein a second fan is located inside the second channel. 12. The arrangement according to claim 6, wherein a first channel is used as air-inlet, while a second channel is used as air-outlet. 13. The arrangement according to claim 12, wherein a second fan is located inside the second channel.
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이 특허에 인용된 특허 (6)
Zepp,Lawrence P.; Medlin,Jerry W., Brushless permanent magnet wheel motor with variable axial rotor/stator alignment.
Armor Anthony F. (Schenectady NY) Morgan John R. (Schenectady NY), Flexible serrated abradable stator mounted air gap baffle for a dynamoelectric machine.
Weeber, Konard Roman; Hughes, Ian Arthur; Steinbach, Albert Eugene; Chila, Ronald James, Forced air stator ventilation system and stator ventilation method for superconducting synchronous machine.
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