Butt amorphous single core with noise reduction function of glue coating and with approximate-circle cross-section
An amorphous iron core, docking technology, applied in transformer/inductor parts, inductor/transformer/magnet manufacturing, transformer/inductor noise damping, etc. Provides productivity, reduces the effect of magnetic flux transfer capability, and reduces noise
Inactive Publication Date: 2009-06-03
BEIJING ZJLG AMORPHOUS TECH CO LTD
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Problems solved by technology
If the two ends are directly butted at the joint, the iron core at the joint is interrupted, which will generate a large magnetic resistance and affect the transmission of magnetic flux. Therefore, it is necessary to improve the rectangular joint structure.
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[0009] see Figure 1-3 , the present invention provides a glue-coated noise-reducing butt-joint cross-section approximate circular amorphous single core, which is formed by stacking several amorphous core pieces sequentially, and glue coating 700 is coated on at least part of the front and rear end surfaces , the plurality of amorphous core pieces are divided into several butt joint groups with different lengths, the lengths of the core pieces of the same butt joint group are equal, and the two ends of the same butt joint group are butted with each other in the core joint area to form a tiny joint 300, different butt joint groups There is a distance in the tangential direction of the iron core from the tiny joints of the adjacent butt joints, and the several amorphous core pieces also have different widths, and the width of the amorphous core pieces located in the middle part of the core column is greater than The width of the amorphous core laminations on either side of the c...
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The invention relates to a butt amorphous single core with noise reduction function of glue coating and with an approximate-circle cross-section. The butt amorphous single core is formed by packing a plurality of amorphous core plates in sequence; the glue coating is coated at least on part of the area of the front end surface and the back end surface of the butt amorphous single core. The amorphous core plates are divided into a plurality of butt groups with different lengths, the widths of the core plates of one butt group are same, the two ends of one butt group are butted at the bonding land of the core to form a micro seam, and the micro seams of the adjacent butt groups have a distance along the tangential direction of the core. The amorphous core plates also have different widths, wherein, the amorphous core plates in the middle part of a core limb are wider than the amorphous core plates at the two sides of the core limb. The butt amorphous single core of the invention has good effect of magnetic conduction, is beneficial to saving the usage of copper in a coil, prevents the insulating materials of the coil from being damaged by extrusive corner angles, reduces the noise and is mainly used in various amorphous transformers.
Description
technical field [0001] The invention relates to a glue-coated noise-reducing butt joint type amorphous single core with an approximate circular cross-section, which belongs to the field of electrical technology. technical background [0002] The amorphous iron core is stacked together by several layers of amorphous iron core sheets to form a closed electromagnetic field circuit, which is used to transmit magnetic flux on transformers and other equipment. Coils are placed on the iron core columns on both sides of the iron core. Variable magnetic field, the magnetic flux of this magnetic field is transmitted to another coil through the iron core to form an induced current, thereby realizing the function of energy transfer and voltage transformation. At present, the width of each layer of amorphous iron core in the amorphous iron core is the same. The cross-section thus formed is rectangular, and the annular coil sleeved on the iron core column should also be rectangular, so as...
Claims
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IPC IPC(8): H01F27/26H01F27/245H01F27/33H01F41/02
Inventor 徐继斌何力张卫国徐磊
Owner BEIJING ZJLG AMORPHOUS TECH CO LTD