Open-loop polygonal three-dimensional triangular roll iron core structure

Abstract

An open-loop polygonal three-dimensional triangular roll iron core structure comprises three single-phase iron cores, the iron core planes on the inner sides of the different single-phase iron cores and the iron core vertical faces form 150 degrees, and the iron core planes on the outer sides of the different single-phase iron cores form three iron core columns in a polygonal mode. The six upper and lower single-phase iron yokes are amorphous alloy sheets and silicon steel sheets with half of the cross section of an iron core column close to a semicircle, and the amorphous alloy sheets and the silicon steel sheets wind iron core sheets with different equal widths and unequal widths according to design requirements to form the single-phase iron core. The amorphous alloy sheet and the silicon steel sheet are of a single-phase structure, an open ring is formed on the amorphous alloy sheet and the silicon steel sheet so that the coil can be sleeved in the open ring conveniently, and the section of the iron core column is in a sawtooth shape. The corner sides of the upper end and the lower end of the single-phase iron core are arc-shaped fillets, and the amorphous alloy sheets and the silicon steel sheets comprise upper iron yoke planes or lower iron yoke planes and are connected to form a single-phase structure. The open ring opening is located at the lower opening or the lower opening of the iron core and the iron yoke, and the open ring opening plane of each layer of lower iron yoke is aligned, crossed and staggered. And each layer of opening in the single-phase iron core is distributed in a multilateral manner along the parallel direction of the upper yoke edge.

Description

Technical Field

[0001] The invention relates to the technical field of transformer cores, and in particular to an open-loop polygonal three-dimensional triangular wound core structure. Background Art

[0002] At present, the materials used to make transformer cores are mainly silicon steel sheets and amorphous alloys. Transformers are energy-saving and environmentally friendly. Traditional triangular transformer cores are processed by curve cutting, which has low material utilization, complex equipment and high prices, many tooling equipment, complex processes, low production efficiency and material utilization. To this end, the present invention overcomes many unfavorable factors and provides a transformer core that reduces no-load loss and no-load current, three-phase balance to reduce harmonics and improve power quality, saves core materials, improves production efficiency, and reduces production costs. Summary of the invention

[0003] One purpose of the present invention is to propose an open-loop multi-sided three-dimensional triangular wound core structure, which solves the technical problems of high no-load loss of transformer core, low material utilization, complex production process, large investment in special equipment, and high maintenance and repair costs in the prior art. It can achieve many beneficial technical effects, which are described in detail below. To achieve the above purpose, the present invention provides the following technical solutions: The present invention discloses an open-loop polygonal three-dimensional triangular wound core structure, including three single-phase cores, and the inner core planes of different single-phase cores are 150° with the core elevation, and the outer sides of the cores are polygonal to form three core columns. The six upper and lower single-phase iron yokes are amorphous alloy sheets and silicon steel sheets that are close to a semicircle of half the cross-section of the core column. The amorphous alloy sheets and silicon steel sheets are wound with iron sheets of different widths and unequal widths according to design requirements to form a single-phase core. The amorphous alloy sheets and silicon steel sheets are single-phase structures, and an open open loop is formed on the amorphous alloy sheets and silicon steel sheets to facilitate the insertion of the coil, and the cross-section of the core column is serrated. The upper and lower end corners of the single-phase core are arc-shaped fillets, and the amorphous alloy sheets and silicon steel sheets include upper iron yokes or lower iron yokes connected in plane to form a single-phase structure. The open open loop mouth is located at the lower mouth or lower mouth of the iron yoke of the iron core, and the open open loop mouths of each layer of the lower iron yoke are aligned and staggered on the plane. Each layer of openings in the single-phase iron core is distributed in a polygonal manner along a direction parallel to the upper yoke edge. The present invention provides a binding belt within an open-loop polygonal three-dimensional triangular rolled iron core structure, wherein the binding belt is wound around and fixed on an iron core column and an iron yoke. The open-loop polygonal three-dimensional triangular wound core structure provided by the present invention has at least the following technical effects: The invention provides an open-loop polygonal three-dimensional triangular wound core structure, wherein the core is formed by winding amorphous alloy sheets and silicon steel sheets and has the characteristics of effectively reducing no-load loss and no-load current. The open-loop polygonal three-dimensional triangular wound core structure provided by the present invention has the advantages of simple processing, high material utilization rate, high production efficiency, simple production process, maintenance and repair, low noise, energy saving, material saving, environmental protection and high short-circuit resistance.

[0020] In an open-loop polygonal three-dimensional triangular wound core structure provided by the present invention, the cross-section of the core column is a polygonal circle with equal and unequal widths at each level, which improves material utilization and can reach a utilization rate of more than 99%, embodies the reduction of no-load loss and no-load current, reduction of core noise, and cost savings.

[0021] The lower end of the single-phase iron core of the technical solution of the present invention is set as a bent rounded corner, which can effectively prevent the increase of the no-load loss of the lower iron yoke after the amorphous alloy iron core sheet and the silicon steel sheet are wound, and reduce the no-load consumption of the triangular open iron core structure.

[0022] The upper and lower ends of the single-phase iron core of the technical solution of the present invention are arc-shaped fillets, which can reduce the bending of the amorphous alloy sheet and the silicon steel sheet at the corners, reduce the deformation of the amorphous alloy sheet and the silicon steel sheet and simplify the processing technology. BRIEF DESCRIPTION OF THE DRAWINGS one, Figure 1 This is a front view of an open-loop polygonal three-dimensional triangular wound core structure: 1. The core column of the single-phase core; 2. The upper and lower corners of the single-phase core are arc-shaped; 3. Upper iron yoke of single-phase iron core; 4. Lower iron yoke of single-phase iron core 5. At the open loop, each layer of silicon steel sheet and amorphous alloy sheet is staggered at 45 or 90 degrees; two, Figure 2 It is an open-loop polygonal three-dimensional triangular coil core structure: 1. The inner core plane of the single-phase core is 150° to the core vertical plane, and the outer semicircular arc side of the core is a polygonal structure. three, Figure 3 After three single-phase cores are combined, a three-column multilateral three-dimensional triangle transformer core structure is formed.

Claims

1. An open-loop polygonal three-dimensional triangular coil core structure, characterized in that The iron core is composed of three single-phase open-loop coiled iron cores of the same shape, which are combined at an angle of 150°. The open-loop polygonal three-dimensional triangular coiled iron core structure is characterized in that the break position of each single-phase open-loop coiled iron core is at one position (5), and the break position can be placed on the upper yoke or the lower iron yoke, and the shape of the iron core is (Figure 3).

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