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A magnetic shielding fixture and its positioning method

A positioning method and magnetic shielding technology, applied in the manufacture of inductors/transformers/magnets, preventing/reducing unwanted electrical/magnetic influences, electrical components, etc. Gap and bubbles, etc., to achieve stable shielding effect, avoid deformation and rebound effect

Active Publication Date: 2016-06-29
WUJIANG TRANSFORMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Magnetic shielding is generally made of silicon steel sheets. In the current production process of magnetic shielding, silicon steel sheets need to be bonded together with cured glue to form the required size and shape. Due to the characteristics of the silicon steel sheet itself, it is difficult to guarantee The shape is maintained after bonding, the magnetic shielding is prone to angular deformation and dimensional deformation, and gaps and air bubbles are likely to occur between the silicon steel sheets, and the magnetic shielding effect is unstable

Method used

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  • A magnetic shielding fixture and its positioning method

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Embodiment Construction

[0025] The content of the present invention will be described in detail below with a preferred embodiment in conjunction with the accompanying drawings.

[0026] refer to figure 1 As shown, a magnetic shielding fixture includes a bottom plate 1, a lower pressure plate 3 fixedly arranged on the bottom plate 1, an upper pressure plate 4 detachably connected to the bottom plate 1, and a formed between the upper pressure plate 4 and the lower pressure plate 3. A storage space for storing the magnetic shield, in which a first connecting device 7 for detachably connecting the upper pressing plate 4 , the magnetic shielding and the lower pressing plate 3 is provided.

[0027] The shape of the storage space formed between the upper pressing plate 4 and the lower pressing plate 3 matches the shape of the magnetic shield. In this embodiment, the shape of the magnetic shield is “V”, so the upper pressing plate 4 and the lower pressing plate They are also in the shape of "V".

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PUM

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Abstract

The invention relates to a magnetic shielding fixture and its positioning method, in particular to a magnetic shielding fixture for shaping and curing the magnetic shielding of a transformer. A magnetic shielding fixture includes a base plate, a lower pressing plate fixed on the base plate, and an upper pressing plate detachably connected to the base plate, a storage space for storing magnetic shielding is formed between the upper pressing plate and the lower pressing plate, and the The storage space is provided with a first connecting device for detachably connecting the upper pressing plate, the magnetic shield, and the lower pressing plate. The object of the present invention is to provide a magnetic shielding jig, the magnetic shield made by it can fit seamlessly, the shielding effect is stable, and the deformation and rebound of the magnetic shield can be avoided during the curing process.

Description

technical field [0001] The invention relates to a magnetic shielding fixture and its positioning method, in particular to a magnetic shielding fixture for shaping and curing the magnetic shielding of a transformer. Background technique [0002] When the transformer is working, it usually produces magnetic flux leakage, which interferes with adjacent equipment. For oil-immersed transformers, magnetic flux leakage may even cause eddy current losses on the box wall. Therefore, in order to reduce or eliminate the interference of magnetic flux leakage to adjacent equipment or the impact on the transformer itself, magnetic shielding is usually installed inside the transformer. Magnetic shielding is generally made of silicon steel sheets. In the current production process of magnetic shielding, silicon steel sheets need to be bonded together with cured glue to form the required size and shape. Due to the characteristics of the silicon steel sheet itself, it is difficult to guarant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/36H01F27/00H01F41/00
Inventor 金健花虹钮秀荣马健
Owner WUJIANG TRANSFORMER CO LTD