Reactor core and manufacturing method thereof

Abstract

The invention provides a reactor core, which comprises a plurality of silicon steel sheets and fixed seats, wherein through holes are punched in the silicon steel sheets; the plurality of silicon steel sheets are stacked to form a silicon steel sheet assembly; the fixed seats are arranged at the opposite side surfaces of the silicon steel sheet assembly; connection holes which are communicated with the through holes are formed in the fixed seats; fixed parts are arranged in the connection holes and the through holes in a penetrating manner to achieve locking of the silicon steel sheet assembly by the fixed seats; a plurality of gaskets with equal intervals are arranged between the silicon steel sheet assembly and the fixed seats; a locking plate is arranged at the upper end of the silicon steel sheet assembly and is located between the adjacent two gaskets; and two ends of the locking plate are fixed on the fixed seats at two sides respectively. The locking plate provided by the invention carries out secondary locking on the basis of locking the fixed parts, so that the fastening effect is good. The gaskets are arranged between the fixed seats and the silicon steel sheet assembly, so that vibration and noise are effectively reduced. The invention further provides a preparation method of the reactor core, which is simple in preparation technology and low in cost.

Description

technical field [0001] The invention relates to the technical field of reactors, in particular to a reactor iron core and a preparation method thereof. Background technique [0002] As an important reactive power compensation equipment, reactors are widely used in power systems. Among them, iron core reactors have obvious advantages over similar products such as air core reactors and oil-immersed reactors, such as less magnetic flux leakage, low loss, and occupation. Small space, low noise, moisture-proof, flame-retardant, easy maintenance, etc. However, iron-core reactors, like other power equipment, have problems such as noise and temperature rise. [0003] The noise of the reactor is an important index to judge the structural performance of the reactor. It reflects the production and assembly quality of the reactor and affects the service life of the reactor. The noise of the reactor mainly comes from the mechanical vibration of the iron core and the electromagnetic noi...

AI Technical Summary

Problems solved by technology

The iron core of the reactor is composed of several plates of high magnetic permeability materials. When making the iron core, if the fastening force between the plates is not enough, it will cause looseness between the plates and noise, which will affect the life and safe operation of the product.

[0004] In the prior art, for the preparation of the iron core, it is often used to bind the periphery of the grease-impregnated plates without weft tape, so that the plates are combined together. This production method has the disadvantages of cumbersome procedures, low production efficiency, and high cost.

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