CN203673924U

CN203673924U - Current transformer iron core

Info

Publication number: CN203673924U
Application number: CN201320547679.7U
Authority: CN
Inventors: 石杨仲
Original assignee: YIXING ZHONGRUI ELECTRONIC TECHNICAL Co Ltd
Current assignee: YIXING ZHONGRUI ELECTRONIC TECHNICAL Co Ltd
Priority date: 2013-09-04
Filing date: 2013-09-04
Publication date: 2014-06-25
Anticipated expiration: 2023-09-04

Abstract

The utility model discloses a current transformer iron core which comprises a permalloy iron core and a silicon steel iron core. The permalloy iron core and the silicon steel iron core are stacked together. The current transformer iron core is assembled and improved by using different materials according to the requirement for the performance of a transformer by instruments and meters, the permalloy iron core and the silicon steel iron core are stacked and assembled, the transformer made of the permalloy iron core is small in angular difference and good in linearity, the detecting current of the silicon iron core is large, the advantages of the permalloy iron core and the advantages of the silicon steel iron core are combined to obtain the current transformer iron core so that high-current signals can be detected under the condition that the size of the current transformer is made to be small, and the precision angular difference and the linearity are both good.

Description

A kind of current transformer core

Technical field

The utility model relates to a kind of iron core, is specifically related to a kind of current transformer core.

Background technology

The micro mutual inductor of using on market now wants cube more and more less, detection electric current is increasing, precision is also more and more higher, ultracrystallite and permalloy and traditional instrument transformer is used, although this two iron core can meet the demands aspect precision, but in the situation that requiring its volume little and large current signal cannot be detected, if made into silicon sheet core, can detect same amorphous with permalloy in the situation that sectional area is identical, the high electric current of high several times, but its shortcoming is that the instrument transformer precision made of silicon steel sheet is in the time surveying little current signal, precision angular difference and the linearity are all poor.

Utility model content

Utility model object: the purpose of this utility model is in order to solve above the deficiencies in the prior art, provides all good current transformer cores of a kind of precision angular difference and the linearity.

Technical scheme: a kind of current transformer core described in the utility model, comprise permalloy iron core and silicon steel core, described permalloy iron core and described silicon steel core are superimposed.Described permalloy iron core is annular, and described silicon steel core is annular, and the size dimension of two kinds of iron cores is identical.

Beneficial effect: a kind of current transformer core described in the utility model is the performance requirement to instrument transformer according to instrument and meter, by using different materials to combine improvement, the feature performance benefit of different materials is combined and reach best result of use, permalloy iron core and silicon steel core carry out stack combinations, instrument transformer angular difference that permalloy iron core does is little and the linearity good, it is large that silicon steel core detects electric current, both advantages are combined to the current transformer core obtaining can make current transformer the small volume in the situation that, can detect high current signal, and precision angular difference and the linearity are all good.

Brief description of the drawings

Fig. 1 is section of structure of the present utility model, wherein 1-permalloy iron core 2-silicon steel core.

Embodiment

In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection range.

Referring to Fig. 1

Embodiment

A kind of current transformer core, comprises permalloy iron core 1 and silicon steel core 2, and permalloy iron core 1 and silicon steel core 2 are superimposed.Permalloy iron core 1 is annular, and silicon steel core 2 is annular, and the size dimension of two kinds of iron cores is identical, and the iron core having superposeed is obtained to current transformer core outside with iron core sheath cover again.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a current transformer core, it is characterized in that, formed by permalloy iron core and silicon steel core, described permalloy iron core and described silicon steel core are superimposed, described permalloy iron core is annular, described silicon steel core is annular, and the size dimension of described permalloy iron core and described silicon steel core is identical, the permalloy iron core having superposeed and the cored sheath of silicon steel core overcoat.