Low-noise transformer shell

A transformer housing, low noise technology, applied in transformer/inductor housing, transformer/inductor cooling, transformer/inductor noise damping, etc., can solve the problems of large noise, limited shock absorption effect, limited effect, etc. The effect of improving the surrounding environment, increasing the vibration frequency, and reducing noise

Inactive Publication Date: 2012-10-03
吴江市东泰电力特种开关有限公司
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Problems solved by technology

However, the defect of using this kind of iron core made of stacked silicon steel sheets is that in the process of electromagnetic alternating, the silicon steel sheets continuously generate magnetic force effects according to the frequency of alternating current, so that the continuous vibration and collision between each silicon steel sheet causes a huge noise
In this regard, measures such as improving the coating of silicon steel sheets and adding sound-absorbing cotton to the transformer casing are currently used to red

Method used

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Examples

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Example Embodiment

The present invention will be further explained below in conjunction with the drawings and embodiments:

in figure 1 , figure 2 In the illustrated embodiment, the low-noise transformer housing includes an inner housing 1 and an outer housing 2; the inner housing 1 is provided with a transformer stator 3 composed of an iron core and a coil; and each surface of the inner housing 1 is centrally provided There is a cluster of pores 10, the outer surface of the inner shell 1 and the inner surface of the outer shell 2 are provided with sound-absorbing cotton; the inner side of the outer shell 2 and the outer side of the inner shell 1 are provided with the outer shell 2 or the inner shell 1 The elastic plate 21 is fixedly connected. In this embodiment, the elastic plate 21 is arc-shaped and arches from the outer shell 2 to the inner shell 1; the elastic plate 21 is also provided with sound-absorbing cotton.

The pores 10 in the center of each surface of the inner shell 1 have a diamet...

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Abstract

The invention provides a low-noise transformer shell which is applicable to power transformers composed of iron cores and coils. The low-noise transformer shell comprises an inner shell and an outer shell, a transformer stator composed of an iron core and a coil is arranged in the inner shell, a pore cluster is arranged at the center of each surface of the inner shell, and silencing cotton is arranged on the outer surface of the inner shell and on the inner surface of the outer shell. By the transformer shell, low-frequency noise can be converted into high-frequency noise to be efficiently absorbed by the silencing cotton on the outer surface of the inner shell and on the inner surface of the outer shell, transformer noise is greatly reduced, and ambient environments are improved.

Description

Technical field [0001] The present invention relates to the field of basic power facilities, in particular, a power transformer housing composed of silicon steel sheets and coils. [0002] Background technique [0002] In the field of civil power supply, high-voltage power is usually used for power transmission, which can reduce the loss of current on the transmission line. Near the user end, it is usually necessary to set up a substation to step down the high-voltage power to meet normal power consumption. The mains voltage is 220V. In this kind of high-voltage substation, the used transformer is usually an iron core transformer composed of silicon steel sheets and coils, and is usually a three-phase autotransformer. In this kind of iron core transformer, in order to reduce the eddy current generated by the alternating magnetic field in the iron core, the structure of the iron core is generally made of stacked silicon steel sheets, so that the eddy current can be limited to ea...

Claims

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Application Information

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IPC IPC(8): H01F27/02H01F27/33H01F27/08
Inventor 李紫薇
Owner 吴江市东泰电力特种开关有限公司
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