• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1516998 Stator cooling and winding insulation WESTINGHOUSE ELECTRIC CORP 15 Sept 1975 [25 Sept 1974] 37806/75 Heading H2A The stator winding of a dynamoelectric machine has a closed coolant system comprising a pump (28), Fig. 1 (not shown), a cooler (30), inlet and outlet manifolds (24), (25), hollow strands in the conductors 16 of the winding and headers 36 one at each end of each conductor 16, the epoxy resin impregnated mica tape insulation 46 on each conductor 16 terminating short of the headers 36 thereon, each conductor 16 in the regions adjacent headers 36 having its strands supported in relation to each other by epoxy resin (45), Fig. 4 (not shown), filling space between the strands (20), and the parts of each conductor 16 between its header 36 and insulation 46 each having a respective rigid electrically insulating support member 47 formed by layers of epoxy resin impregnated, non-woven, glass fibre material (48), Fig. 3 (not shown), each layer (48) forming a full sleeve-like covering of the conductor 16, layers (48) being interleaved with the mica tape layers (49), Fig. 3. A turbine driven generator, Fig. 1, has a gas-tight casing (13) filled with a coolant gas, e.g. hydrogen, to cool a hollow cylindrical stator (10) and a rotor (18). Each support 47 is interleaved with the corresponding insulation 46 by winding them alternately onto conductor 16 to form a splice 50, the support 47 being wound to gradually extend onto a tapered part of the header 36 and the insulation 46 then being impregnated with epoxy resin which is subsequently cured.
    公开号:SU710534A3
    申请号:SU752174707
    申请日:1975-09-24
    公开日:1980-01-15
    发明作者:Генри Шнейдер Марк；Майкл Форт Эмиль；Брайан Симмондс Леонард；Джон Калтзоу Роберт
    申请人:Вестингхауз Электрик Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the field of electrical engineering, in particular to electric machines with liquid cooling.
    A known node for supplying cooling fluid to the hollow conductors of the stator winding rods of an electric machine containing a pipeline for supplying and draining cooling fluid and a tip with a chamber having a conical outer surface, at the base of which end sections of conductors with insulation are fixed [1].
    The disadvantage of the design is the low reliability when exposed to vibrational loads that occur during operation of the machine.
    The aim of the invention is to increase the reliability of the node. **
    The goal is achieved by the fact that the proposed site is equipped with multilayer rigid insulating support sleeves covering the end sections of the conductors, each of the layers of the sleeve being connected on the one hand to the insulation of the conductors overlapping, and on the other, connected to the tip on the conical surface of the chamber with the overlapping of the previous layer, and ® conductors 2 each rod in front of the tip attached to one another by tsropitki, such as epoxy resin, wherein the insulating sleeve is made of alternating layers of ste lovoloknistogo material and mica tape, fastened, for example, epoxy resin.
    In FIG. 1 shows an electric machine, a longitudinal section; in FIG. 2 - winding rod with a tip; in FIG. 3 - chamber with conductors, longitudinal section; in FIG. 4 - connection of the layers of the sleeve with the insulation of the overlap conductors; in FIG. 5 - camera with conductors, cross section.
    The node supplying coolant to the hollow conductors 1 of the rods 2 of the stator winding of an electric machine contains a pipe 3 for supplying and draining coolant, a tip 4 with a chamber 5 having a conical outer surface 6 at the base of which end sections 7 of conductors 1 with insulation 8 are fixed.
    The node is equipped with multilayer rigid insulating support sleeves 9, covering the end sections 7
    710534.
    conductors 1, and each of the layers 10 of the sleeve 9 is connected on the one hand with insulation 8 of the conductors 1 overlap, and on the other hand with a tip 4 on the conical surface b of the chamber 5 with overlapping the previous layer. ₽
    The conductors 1 of each rod 2 before entering the tip 4 are attached to each other by impregnation, for example with epoxy resin.
    The insulating sleeve 9 is made of alternating layers of fiberglass material 11 and mica tape 12, fastened, for example, with epoxy resin.
    The implementation of the stator winding rods covered by multilayer rigid insulating support sleeves. Turns them into monolithic rigid elements that withstand the effects of mechanical loads arising from the operation of an electric machine. 20
    权利要求:
    Claims (2)
    [1]
    conductors 1, each of the layers 10 of the sleeve 9 is connected on one side with insulating 8 conductors 1 overlapping and on the other with a tip 4 along the conical surface b of chamber 5 with overlapping the previous layer. The conductors 1 of each rod 2 in front of the entrance to the tip 4 are attached to one another by impregnation, for example with epoxy resin. The insulating sleeve 9 is made of alternating layers of glass fiber material 11 and mica tape 12, for example, fastened with epoxy resin. The execution of the stator winding rods covered by multi-layer rigid insulating support sleeves turns them into solid monolithic elements that withstand the impact of mechanical loads arising from the operation of an electric machine. Claims 1. Cooling fluid supply unit to hollow conductors of rods: Stator windings of electrical conductor containing pipeline for PPP.

     and draining the coolant. and a nozzle with a chamber having a conical outer surface, at the base of which the end sections of the conductors are insulated, characterized in that, in order to increase reliability, it is equipped with multi-layer rigid insulating support sleeves that enclose the end sections of the conductors each of the layers of the sleeve is connected on one side with the insulation of the conductors overlapped, and on the other it is connected to the tip along the conical surface of the chamber with the overlapping of the previous layer, and each Before the end of the entrance to the handpiece, they are attached to one another by impregnation, for example with epoxy resin.
    [2]
    2. The assembly according to Claim 1, characterized by the fact that the insulating sleeve is made of alternating layers of glass fiber material and mica tape fastened together, for example, with epoxy resin. Sources of information taken into account in the examination 1. UK application 1291989 -. H 02 K 3/22, 1972.
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    类似技术:
    公开号 | 公开日 | 专利标题
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    US6724118B2|2004-04-20|Electrical isolation layer system strand assembly and method of forming for electrical generator
    US4704787A|1987-11-10|Process for production of the winding of an electrical machine
    CA1163301A|1984-03-06|Stator coil of a high-voltage generator
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    US4890028A|1989-12-26|Rotor for a turbo-generator
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    CN1220050A|1999-06-16|Device for stator of rotating electrical machine
    KR20010032377A|2001-04-16|Insulated conductor for high-voltage machine windings
    US20020153800A1|2002-10-24|Device in the stator of a rotating electric machine and such a machine
    同族专利:
    公开号 | 公开日
    DE2540634A1|1976-04-15|
    CH601941A5|1978-07-14|
    SE7510676L|1976-03-26|
    FR2286535A1|1976-04-23|
    BR7506182A|1976-08-03|
    DE2540634C2|1987-03-26|
    GB1516998A|1978-07-05|
    US3950665A|1976-04-13|
    CA1024575A|1978-01-17|
    JPS598449Y2|1984-03-15|
    BE833747A|1976-03-24|
    IN144307B|1978-04-22|
    FR2286535B1|1982-05-07|
    ES441252A1|1977-03-16|
    SE403012B|1978-07-24|
    JPS5142410U|1976-03-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2695368A|1953-01-27|1954-11-23|Gen Electric|Dynamoelectric machine stator winding with fluid-cooling passages in conductor bars|
    US3011082A|1957-04-12|1961-11-28|Ahrens Alfred|Conductor bar for electrical machines|
    CH357799A|1958-03-06|1961-10-31|Oerlikon Maschf|Process for producing a coolant connection for directly cooled winding bars in electrical machines|
    DE1140639B|1960-07-30|1962-12-06|Siemens Ag|Liquid-cooled stator winding for electrical generators with conductor bars twisted from waveguides|
    US3254150A|1961-07-24|1966-05-31|Westinghouse Electric Corp|Electrical coils for refrigerating apparatus|
    US3112415A|1962-01-02|1963-11-26|Gen Electric|Control of winding temperatures of liquid cooled generators|
    US3192423A|1962-11-29|1965-06-29|Gen Electric|Coil end connecting means for split windings of dynamoelectric machines|
    US3388458A|1964-06-03|1968-06-18|Gen Motors Corp|Insulation means and moisture sealing of armatures|
    US3254246A|1964-06-22|1966-05-31|Westinghouse Electric Corp|Dynamoelectric machines|
    US3365600A|1965-01-13|1968-01-23|Gen Electric|Dynamoelectric machine end turn insulation protection system|
    DE1803588A1|1968-10-17|1970-05-27|Boge Gmbh|Hydraulic reverse brake especially for rail vehicles|
    US3634705A|1970-04-23|1972-01-11|Westinghouse Electric Corp|Cooling system for dynamoelectric machines|
    US3679925A|1971-02-02|1972-07-25|Westinghouse Electric Corp|Electrical apparatus with corona suppression means|
    US3693036A|1971-06-14|1972-09-19|Gen Electric|Liquid cooled series loop connector|
    JPS4822731U|1971-07-24|1973-03-15|JPS5640581B2|1976-03-12|1981-09-21|
    JPS54113010A|1978-02-24|1979-09-04|Hitachi Ltd|Electric rotary machine|
    JPS6210831B2|1979-03-15|1987-03-09|Kogyo Gijutsuin|
    DE3013150A1|1980-04-03|1981-10-08|Aleksandr Abramovič Čigirinskij|Electric rotary machine with cooling ducts in stator - has outer pipeline for coolant supply, extending over stator and forming upstream and downstream branches|
    US4321497A|1980-04-10|1982-03-23|Westinghouse Electric Corp.|Peripheral connector ring stator end winding for dynamoelectric machines|
    JPS5798866U|1980-12-08|1982-06-17|
    US4380362A|1981-04-23|1983-04-19|Westinghouse Electric Corp.|Directly cooled bolted series connection of generator stator coils|
    EP1168571A3|2000-05-30|2003-12-17|BAE SYSTEMS Controls, Inc.|Rotating machine having hollow stator field windings for coolant flow therein|
    US20040100157A1|2001-02-22|2004-05-27|Delco Remy America|Electric machine end turn connectors|
    US6798079B2|2002-07-11|2004-09-28|Siemens Westinghouse Power Corporation|Turbine power generator including supplemental parallel cooling and related methods|
    JP2005160261A|2003-11-28|2005-06-16|Hitachi Ltd|Armature winding and rotating electric machine using same|
    US8760127B2|2011-03-31|2014-06-24|General Electric Company|System and method for controlling a temperature of a generator|
    WO2012145302A2|2011-04-18|2012-10-26|Remy Technologies, Llc|Electric machine module cooling system and method|
    JP6847008B2|2017-09-19|2021-03-24|三菱パワー株式会社|Rotating machine|
    JP2020072560A|2018-10-31|2020-05-07|三菱日立パワーシステムズ株式会社|Rotary electric machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/509,166|US3950665A|1974-09-25|1974-09-25|Liquid-cooled conductors for dynamoelectric machines|
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