• 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:
    A welding transformer with drooping voltage-current characteristic comprising a split magnetic core wound from transformer plate, and separated primary and secondary windings. In the core window, a moving shunt of the magnetic flux is provided between the secondary and primary windings. Where the magnetic flux passes from the core into the magnetic flux shunt, the core is provided with spacing blocks made from transformer plate. Laminations of these spacing blocks are so arranged in relation to the core plate that the magnetic flux does not cross the plane of the core plates but flows towards the magnetic shunt.
    公开号:SU712052A3
    申请号:SU782687643
    申请日:1978-11-23
    公开日:1980-01-25
    发明作者:Колочэк Виктор；Добай Эдвард；Зарэмба Тадэуш
    申请人:Институт Спавалництва (Инопредприятие)；
    IPC主号:
    专利说明:

    (54) WELDING TRANSFORMER
    one
    The invention relates to welding transformers with a cold-rolled transformer steel magnetic core, provided with a magnetic flux shunt and with a falling external characteristic designed to power the welding arc.
    In known welding transformers, the magnetic circuits consist of shaped parts.
    Known welding transformers with tape magnetic conductors of cold-rolled transformer steel, equipped with magnetic flux shunts, but very low-power 1.
    In a tape magnetic circuit, the magnetic flux, the passage to the shunt, crosses the planes of the steel sheets, induce eddy currents in them, causing excessive heating of the magnetic conductor near the shunt of the magnetic flux. This phenomenon eliminates the possibility of using tape magnetic circuits in welding transformers of medium and high power. In low-power transformers with a tape magnetic core, temperature increases in the magnetic core are allowed, but there is an additional loss of power, which entails a decrease in efficiency.
    The aim of the invention is to reduce the cost of manufacture and improve the energy and welding characteristics of each column of the magnetic circuit.
    This is achieved by inserting inserts made of electrical steel plates into the location of the magnetic flux site, and the insert plates are located perpendicular to the magnetic core plates.
    FIG. Figures 1-4 show the construction of a welding transformer in four projections.
    The welding transformer consists of a magnetic core 1, a primary winding 2, a secondary winding 3, one or two magnetic shunts 4 and inserts 5. The split magnetic core 1 is rolled up from transformer steel, most often cold-rolled, with a directional magnetic structure. On the magnetic core 1 are placed the primary 2 and secondary 3 windings, and these windings are separated. In the window of the magnetic circuit 1 between
    The primary 2 and secondary 3 windings are movable magnetic shunt 4. If the magnetic core 1 is made with two windows, then two magnetic shunts 4 are used. At the location of the magnetic flux shunt, inserts 5 are inserted into each column of the magnetic conductor From transformer steel with direction the angle of laying the plates relative to the laying of the tape in 90 °, from which the magnetic core 1 is made.
    The transformer's external high-voltage characteristic is obtained by separating the primary 2 and secondary 3 windings. The welding current setting is carried out by pushing the magnetic flux shunt 4 into the window of the magnetic circuit 1 between the primary 2 and secondary 3 windings. The magnetic flux shunt 4 contains part of the magnetic flux and reduces the connection between windings 2 and 3. The magnetic flux, turning from the magnetic core 1 into the magnetic shunt 4, all the time through the inserts 5, flows through the cross section of a stable sheet and induces only minor eddy currents, due to which the temperature The magnetic circuit 1 near the magnetic shunt 4 does not exceed the temperature in the remaining parts of the magnetic circuit 1.
    权利要求:
    Claims (2)
    [1]
    1. A welding transformer containing a split tape magnetic core rolled up from transformer steel, primary and secondary windings, and a magnetic flux shunt inserted into one or two core windows between the primary and secondary windings, characterized in that, in order to reduce the cost of manufacture and improving energy and welding characteristics; inserts made of electrical steel plates were inserted into each column of the magnetic core, at the location of the magnetic flux shunt.
    [2]
    2. Transformer according to claim 1, characterized in that the insert plates are arranged perpendicular to the magnetic core plates.
    Sources of information taken into account during the examination 1. Finish Edward, Victor Kolochek.
    Nowe przenosne spawazki transformatorowe.
    Works of the Welding Institute No. 1/77.
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    7 7
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    2
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    FIG.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE2851670C2|1982-07-08|
    FR2410873B1|1982-05-07|
    PL202582A1|1979-06-04|
    SE7812299L|1979-05-31|
    FI783640A|1979-05-31|
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    PL123224B1|1982-09-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1250542B|1967-09-21|May a Christe G.m.b.H. Transformatorenfabrik, Oberursel |Process for the production of a one-piece frame core for small transformers from a laminated core of laminated metal strips|
    US1992822A|1933-12-01|1935-02-26|Gen Electric|Magnetic core|
    FR1198453A|1958-01-17|1959-12-08|Clarel|Magnetic circuits for coils of chokes, transformers and the like and method of manufacturing such magnetic circuits|
    FR1205713A|1958-08-13|1960-02-04|Clarel|Magnetic circuits for chokes or transformers and devices equipped with these magnetic circuits|
    AT247964B|1961-09-21|1966-07-11|Frako Kondensatoren Und Appbau|Transformer for voltage stabilization circuits|
    DE1293330B|1964-06-05|1969-04-24|Frako Kondensatoren Und Appbau|Magnetic voltage stabilizer|
    CH440444A|1964-07-22|1967-07-31|Skoda Np|Single-phase regulating transformer, especially for feeding traction motors|
    GB1174587A|1966-03-09|1969-12-17|Bruce Peebles Ltd|Transformers or Reactor Core|
    US3919595A|1972-09-01|1975-11-11|Gen Electric|Lamp ballast device|
    GB1426419A|1974-08-06|1976-02-25|Chew Seng Koh|Chokes reactors or transformers|
    DE2654423A1|1976-12-01|1978-06-08|Blum Eisen & Metallind|LAMINATED IRON CORE FOR TRANSFORMERS, REACTOR COILS OR DGL.|CA2255772A1|1996-05-29|1997-12-04|Asea Brown Boveri Ab|Insulated conductor for high-voltage windings and a method of manufacturing the same|
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    JP2000511338A|1996-05-29|2000-08-29|アセアブラウンボヴェリエービー|A rotating electric machine including a high-voltage winding conductor and a winding including the conductor|
    SE9602079D0|1996-05-29|1996-05-29|Asea Brown Boveri|Rotating electric machines with magnetic circuit for high voltage and a method for manufacturing the same|
    SE512917C2|1996-11-04|2000-06-05|Abb Ab|Method, apparatus and cable guide for winding an electric machine|
    SE515843C2|1996-11-04|2001-10-15|Abb Ab|Axial cooling of rotor|
    SE510422C2|1996-11-04|1999-05-25|Asea Brown Boveri|Magnetic sheet metal core for electric machines|
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    EP1042853A2|1997-11-28|2000-10-11|Abb Ab|Method and device for controlling the magnetic flux with an auxiliary winding in a rotating high voltage electric alternating current machine|
    GB2331867A|1997-11-28|1999-06-02|Asea Brown Boveri|Power cable termination|
    US6801421B1|1998-09-29|2004-10-05|Abb Ab|Switchable flux control for high power static electromagnetic devices|
    US6392521B1|2000-10-12|2002-05-21|Clinton Instrument Company|Variable inductance transformer with electronic control|
    DE102005048544A1|2005-10-11|2007-04-12|Robert Bosch Gmbh|Magnetic circuit for ignition coil has outer core as strip placed round inner rod-like core with its thickness perpendicular to longitudinal direction of inner core|
    CN103236344B|2013-06-03|2015-12-02|国网新疆电力公司塔城供电公司|Continuous transformer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    PL1977202582A|PL123224B1|1977-11-30|1977-11-30|Welding transformer of dropping external characteristic|
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