External teeth stator core and its laminator

Abstract

The disclosed external tooth type stator core is formed by cascading linear iron core steel plate composed of zonal part, multiple external tooth part and occlusal surface. The zonal part is in belt form, and its length is longer than width. external teeth part is formed on one side of zonal part and stood out along width direction; there is an interval between two teeth. occlusal surface is formed on other side opposite to external tooth part. features are material saving, simplifies working procedures and shortens production time.

Description

technical field [0001] The present invention relates to an external-tooth type iron core (core) and its stacking device (EXTERNAL-TOOTHTYPE STATOR CORE AND APPARATUS FOR HEAPING UP THEREOF), in particular to an external-tooth type stator core capable of reducing material loss and shortening production time and its stacking device. Background technique [0002] figure 1 It is a schematic plan view of an iron core of a conventional externally toothed stator. As shown in the figure, the externally toothed core is formed by laminating a ring-shaped strap 111 and a core steel plate 110 having teeth 112 . A plurality of teeth 112 are protrudingly formed on the outer side of the strip portion 111 along the radial direction, and are pitched at a certain distance from each other along the circumferential direction. A slot 113 through which a coil (not shown) can be wound is formed between the teeth 112 . [0003] The manufacturing process of the iron core steel plate 110 is as fo...

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Problems solved by technology

[0004] However, there are the following problems in the above-mentioned externally toothed stator core and its manufacturing method: first, molds corresponding to the shape of the iron core steel plate 110 must be made, and then the steel plates are punched to form the iron core steel plate 110 by using these molds.

[0006] However, for this manufacturing method of punching out the segments and superimposing them, and then assembling the outer-toothed stator core, although the generation of waste can be reduced to a certain extent, it is important to reduce the generation of waste. In terms of structure, it will be limited by the structure, and due to the increase of die-cutting and re-stacking, assembling and welding processes, it will cause the problem of increased production time

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