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Self-riveting silicon steel sheet iron core

A silicon steel sheet, self-riveting technology, applied in the direction of transformer/inductor magnetic core, electrical components, transformer/inductor components, etc. Smooth surface and good electrical performance consistency

Inactive Publication Date: 2012-02-22
SUZHOU KANGKAI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is cumbersome during assembly, and the surface of the iron core formed after riveting is not smooth, which will affect the electrical properties of the iron core

Method used

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  • Self-riveting silicon steel sheet iron core
  • Self-riveting silicon steel sheet iron core
  • Self-riveting silicon steel sheet iron core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment one: see attached figure 1 To attach image 3 shown.

[0021] A self-riveting silicon steel sheet iron core is formed by overlapping and riveting several silicon steel sheets, and is used in electrical equipment such as transformers and reactors.

[0022] The self-riveting silicon steel sheet is in the shape of "day" and adopts the combination form of "EI". It includes a central pillar, two side pillars symmetrically arranged on both sides of the central pillar, a first connecting portion and a second connecting portion connecting the two ends of the central pillar and the side pillars. The self-riveting silicon steel sheet has opposite first surface 1 and second surface 2, and a plurality of riveting buckles 3 are symmetrically punched on the center column sheet, the side column sheet, the first connection part and the second connection part.

[0023] The riveting buckle 3 includes a first riveting surface 4 formed on the first surface 1 and concave in th...

Embodiment 2

[0026] Embodiment two: see attached image 3 And attached Figure 4 shown. The silicon steel sheet forming the self-riveting silicon steel sheet core adopts the combination form of "FF", on which a plurality of riveting buckles 3 are symmetrically punched, and a plurality of riveting holes 6 are opened.

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PUM

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Abstract

The invention relates to a self-riveting silicon steel sheet iron core, which is formed by overlapping and riveting a plurality of silicon steel sheets. Each of the silicon steel sheets is a self-riveting silicon steel sheet having a first surface and a second surface both of which are opposite to each other; a riveting buckle is punched on the silicon steel sheet and comprises a first riveting surface formed on the first surface and inwardly recessed on the first surface, and a second riveting surface formed on the second surface and outwardly protruding on the second surface; a groove inwardly recessed on the first surface is defined by the first riveting surface; a bump outwardly protruding on the second surface is defined by the second riveting surface; the first riveting surface and the second riveting surface are the same in shape; and when two of the self-riveting silicon steel sheets are riveted with each other, the bump of the first self-riveting silicon steel sheet is clamped in the groove of the second self-riveting silicon steel sheet, and the first riveting surface of the first self-riveting silicon steel sheet is tightly attached to the second riveting surface of the second self-riveting silicon steel sheet. The iron core provided by the invention is convenient and shortcut in assembly, and the assembled iron core is flat in surface and favorable in electric property consistency.

Description

technical field [0001] The invention relates to an iron core used in electrical equipment such as transformers and reactors. Background technique [0002] In the prior art, iron cores of electrical equipment such as transformers and reactors are usually formed by overlapping multiple silicon steel sheets, and the silicon steel sheets are provided with riveting holes through which the multiple silicon steel sheets are riveted together. This method is cumbersome during assembly, and the surface of the iron core formed after riveting is not smooth, which will affect the electrical properties of the iron core. Contents of the invention [0003] The purpose of the present invention is to provide a self-riveting silicon steel sheet iron core which is quick to assemble and has good electric performance. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A self-riveting silicon steel sheet iron core is formed by over...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/26H01F27/245
Inventor 沈永福
Owner SUZHOU KANGKAI ELECTRIC
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