• 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:
    The invention relates to a method of manufacturing a winding of an electric machine in solid impregnation technology. The purpose of the invention is to improve the quality of the insulation. The finished insulated rods are laid into the slots of the stator, wedged and subjected to the first treatment process by impregnation and curing. The entire stator housing with the winding is filled at room temperature with an impregnating resin and then heated in a furnace to the first temperature. Then, having allowed the stator to cool, turn at an angle of 90 ° and refilled with an impregnating resin and impregnated, and then cured at a temperature of 20 ° C. C below the first cycle. la curing. 1 il.
    公开号:SU1715216A3
    申请号:SU864028538
    申请日:1986-11-24
    公开日:1992-02-23
    发明作者:Херцог Курт；Шулер Роланд
    申请人:Ббц Аг Браун, Бовери Унд Ко. (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to a method for manufacturing a winding of an electric machine in continuous impregnation technology.
    The purpose of the invention is to improve the quality of the insulation.
    The drawing shows a cross-section of the winding rod and the stator sheet body enclosing it with a partial cut-out in simplified form.
    In the groove of the sheet housing of the stator 1 are located one above the other two rods 2 and 3 of the stator winding. Between the rods there is a gasket 4 made of an insulating material, for example, glass fiber reinforced synthetic material. Wedge 5 of the same material closes the groove and is designed to install the rods 2 and 3 in the groove. The rods are assembled in a known manner. They consist of individual conductors 6 with the isolation of individual conductors, which are twisted in a known manner in accordance with the Rebel principle. Each rod 2, 3 is surrounded by basic insulation 7, the outer surface 8 of which is equipped with a permeable impregnating resin protective coating (not shown).
    In accordance with the known method of continuous impregnation, the finished insulated rods in a dry state are placed in the slots of the stator, wedged and subjected to the first treatment process by impregnation and curing. To this end, the entire stator-wound sheath of the stator sheath is filled at room temperature in an impregnation bath after pre-pumping with an impregnating resin and then heated to the first temperature in a curing oven and the impregnating resin is completely cured. This initial temperature depends on the temperature class of the insulating system (heat resistance class) and is, for example, at class H about 180 ° C, at class G about 155 ° C.
    Then the stator housing is allowed to cool to about room temperature. The stator housing is rotated around its longitudinal axis by 90 ° and refilled with an impregnating resin and at the same time impregnated, and then outside the resin bath it is cured a second time at a temperature of about 20 ° C below.
    If, as a result of cooling, gaps were formed in the insulating system, mainly between the main insulation and the side wall of the groove, these gaps are filled with resin.
    When re-cooled to room temperature, the tendency to form gaps is noticeably lower, because it comes from a lower temperature level and insulation shrinkage can no longer occur.
    If necessary, this third impregnation and curing process can be followed by a third or even fourth process, with each time the stator must be rotated by 90 °, respectively.
    In accordance with the invention, additional technological operations are required compared to the known solid impregnation method, which is compensated for by the resulting advantages (a more homogeneous design, no gaps, and therefore no vibrations or spark discharges, which makes it possible to use
    impregnations up to maximum nominal voltages and unit powers of more than 100 MW, and also provides good heat exchange between conductors and magnetic core.
    The proposed method is illustrated with the aid of a stator winding consisting of Rebel rods. However, the method without any modifications can be used for other types of stator windings, as well as for rotary windings.
    权利要求:
    Claims (1)
    [1]
    The invention The method of manufacturing a winding of an electric machine, in particular a stator winding with continuous impregnation to obtain an insulation system, in which a core is insulated on a rod consisting of several insulated conductors, an insulated core is installed in the stator slots and a resin impregnation and curing cycle is performed at elevated temperatures, characterized in that, in order to improve the quality of the insulation, at least one cure impregnation cycle is additionally carried out, izontalnom position of the stator axis, the first curing cycle is carried out at a temperature corresponding to the class insulation systems, each subsequent cycle is performed after rotation through an angle of 90-180 °, and the curing temperature was lowered while 2030 ° C.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1715216A3|1992-02-23|Method of manufacturing winding of electric machine
    NO165017B|1990-09-03|PROCEDURE FOR CASTING AN INSULATING COVER ON AN ELECTRIC ISOLATOR.
    US3436815A|1969-04-08|Encapsulation process for random wound coils
    FI102061B1|1998-10-15|Procedure for producing the electrical insulation for the winding in an electric motor
    US3562569A|1971-02-09|Dynamo-electric machines having vacuum cast winding insulation
    US3336553A|1967-08-15|Electric windings
    GB2097198A|1982-10-27|Insulated coil assembly and method of making same
    JPS61214749A|1986-09-24|Insulating method of rotary electric machine winding
    JPS55120121A|1980-09-16|Manufacture of resin-molded coil
    US2447631A|1948-08-24|Waterproof electrical coil
    SU1356128A1|1987-11-30|Method of reparing high-voltage insulation of stator windings of electric machines
    JPS56101362A|1981-08-13|Method of full-inpregnated insulating treatment for coil on electric rotary machine
    SU955387A1|1982-08-30|Winded stator producing method
    JPH01222640A|1989-09-05|Insulation method of vent tube for stator coil and insulator obtained by that method
    JPS5829340A|1983-02-21|Coil for rotary machine
    Bertsch et al.1983|The evaluation of recently developed VPI mica paper tapes for high-voltage rotating machines
    JPH01157250A|1989-06-20|Rotor for small-sized rotary electric machine and manufacture and manufacturing device thereof
    SU1339758A1|1987-09-23|Stator of electric machine
    JPS59208711A|1984-11-27|Manufacture of electric machine coil
    JPS61166010A|1986-07-26|Electrically insulated coil
    DE1030919B|1958-05-29|Electric underwater motor of the wet runner type
    JPS5656142A|1981-05-18|Winding of rotary electric machine
    JPS6053007A|1985-03-26|Manufacture of resin mold coil
    JPS6166552A|1986-04-05|Insulating method for coil for rotary electric machine
    JPS59129417A|1984-07-25|Manufacture of mold type induction electrical apparatus
    同族专利:
    公开号 | 公开日
    EP0224694B1|1990-05-16|
    ES2014965B3|1990-08-01|
    AT52881T|1990-06-15|
    NO168280B|1991-10-21|
    JPS62135244A|1987-06-18|
    CN1004986B|1989-08-09|
    EP0224694A1|1987-06-10|
    NO864170D0|1986-10-17|
    CN86108071A|1987-05-20|
    NO168280C|1992-01-29|
    US4704787A|1987-11-10|
    DE3671340D1|1990-06-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2561982A|1948-12-22|1951-07-24|Westinghouse Electric Corp|Varnish treatment of electrical apparatus|
    CH464331A|1966-06-09|1968-10-31|Oerlikon Maschf|Method for manufacturing an electrical machine|
    JPS49135102A|1973-05-02|1974-12-26|
    JPS5271602A|1975-12-11|1977-06-15|Fuji Electric Co Ltd|Insulation for rotary electric machines|US5644181A|1995-01-05|1997-07-01|Dayton-Phoenix Group, Inc.|Stator lamination design having a tapered opening|
    DE19526509A1|1995-07-20|1997-01-23|Still Gmbh|Electrical machine|
    US6438820B1|1999-09-27|2002-08-27|General Electric Company|Method of minimizing rotor body windage loss|
    CN102832764A|2011-06-16|2012-12-19|大银微系统股份有限公司|Encapsulation configuration of linear motor coil|
    CN102361377B|2011-11-01|2013-08-14|无锡市南方防爆电机有限公司|Processing technology for motor winding|
    DE102011088660A1|2011-12-15|2013-06-20|Siemens Aktiengesellschaft|Electric machine with housing and stator segments|
    EP2824801A1|2013-07-12|2015-01-14|Siemens Aktiengesellschaft|Method for the production of a dynamo-electric rotational machine and dynamo-electric rotational machine|
    CN106100259A|2016-06-28|2016-11-09|无锡新大力电机有限公司|A kind of processing technology for motor winding|
    CN107834794B|2017-11-21|2020-03-27|湖南湘电动力有限公司|Manufacturing method of component comprising laminated iron core|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH502885|1985-11-25|
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