CN203456238U

CN203456238U - E-shaped and I-shaped structure and F-type silicon steel sheets for transformer

Info

Publication number: CN203456238U
Application number: CN201320532695.9U
Authority: CN
Inventors: 朱广贵
Original assignee: NANJING SHUNYI ENJIA ELECTRIC CO Ltd
Current assignee: NANJING SHUNYI ENJIA ELECTRIC CO Ltd
Priority date: 2013-06-21
Filing date: 2013-08-30
Publication date: 2014-02-26
Anticipated expiration: 2023-08-30
Also published as: CN103440966A

Abstract

The utility model discloses E-shaped and I-shaped structure and F-type silicon steel sheets for a transformer. The silicon steel sheets are in an E-shape and an I-shape respectively, and one E-shaped silicon steel sheet and one I-shaped silicon steel sheet form a square structure. The length of a square is A and the height of the square is B. The length of the E-shaped silicon steel sheet is A, the height of the E-shaped silicon steel sheet is G, the width of a middle protruded tongue is C, the height of the middle protruded tongue is F, the edge width of the two sides is D, and the width between each side and the middle protruded tongue is E. The width of the I-shaped silicon steel sheet is N, and the length of the I-shaped silicon steel sheet is A. The structure meets the following conditions that A=B; C=A/3; D=E=N=C/2=A/6; F=B-2N=2/3A; and G=B-N=5/6A. The tongue width C and the window height F of the E-shaped and I-shaped structure and F-type series silicon steel sheets are larger than those of an original E-shaped and I-shaped structure series silicon steel sheets. According to the transformer, under the condition of the same size, the sectional area of an iron core is increased by 20 percent, the window height is increased by 15 percent, and the power capacity of the transformer can be increased by more than 25 percent.

Description

EI shape structure F type silicon steel sheet for transformer

Technical field

The utility model relates to a kind of silicon steel sheet, especially simple in structure, manufacture 2-10VA transformer under equal conditions have power capacity large, low in energy consumption, simple in structure, save raw material, specifically a kind of silicon steel sheet for transformer of energy-conserving and environment-protective dilatation.

Background technology

The following small-power electronic transformer of China 1.5KVA, exports approximately 2,500,000,000 left and right every year, and import approximately has 1,400,000,000 left and right.Annual output approximately has several 1,000,000,000.The transformer China output that is iron core with silicon steel sheet is about 500,000,000 left and right.This transformer is widely used in electric equipment products, the instrument and meter equipment of the every field such as electric power, traffic, machinery, electronics, electric, space flight and aviation and science and techniques of defence.

The transformer that China produces is at present all generally the silicon steel sheet core that adopts EI shape structural series, and its specification is EI28 to EI150, covers the following all transformers of 1KVA.

1） A > B

2) D =N < E < C

EI shape structural series silicon steel sheet core has the advantages that volume is little, cost is low, sees Fig. 1.But during stamping-out, dash area accounts for 31% left and right of the gross area, cannot utilize and form waste material waste, if by average every transformer core 1kg re-computation, need every year 500000 tons of silicon steel sheets (hundred million=500,000 tons of 1kg*5) material, there is the silicon steel sheet material of nearly 150,000 tons by slatterning in vain, be worth more than 1,000,000,000 yuan.Therefore the stock utilization of existing EI shape structural series silicon steel sheet is low, has wasted national a large amount of precious resources and wealth.But in the silicon steel sheet core standard GB14411 of China and international EI shape structure and IEC741, do not upgrade at present, more rational construction standard can be selected.

Summary of the invention

The purpose of this utility model is for current internal and international EI shape structural series silicon steel sheet core, under equal volume condition, the power capacity of transformer, loss and the stock utilization state that all reached capacity, being difficult to meet state's net and other industry is not increasing under the condition of volume the transformer on intelligent electric meter, electronics, electric product, increase the power capacity of transformer, the new technology requirement of energy-saving consumption-reducing, propose a kind of silicon steel sheet core of EI shape structure F type series for this reason, see Fig. 2.Under equal conditions, new EI shape structure F type series silicon steel sheet, the silicon steel sheet core of the following wattage transformer of 1.5KVA is that EI27F type represents that to EI150F width A=27 mm to the A=150 mm of EI shape structure silicon steel sheet meets the silicon steel sheet of F type series structure feature.

EI shape structure F type series silicon steel sheet can adopt to cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing sees Fig. 3, material-saving, and stock utilization can be brought up to more than 96%.

The technical solution of the utility model is:

An EI shape structure F type silicon steel sheet for transformer, the profile of described silicon steel sheet is E shape and I shape, the silicon steel sheet of an E shape and an I shape silicon steel sheet are combined into square structure, described foursquare length A, height B; Width between hem width D, dual-side and the middle lingual protrusion of the length A of E shape silicon steel sheet, height G, the wide C of middle lingual protrusion, height F, both sides is E; Width N, the length A of I shape silicon steel sheet, this structure meets following condition:

A = B；

C = A/3；

D = E = N = C/2 = A/6；

F = B-2N =2/3 A；

G = B- N =5/6 A。

Foursquare length A of the present utility model, height B are 33mm; The length A of E shape silicon steel sheet is 33mm, and height G is 27.5mm, and the wide C of middle lingual protrusion is 11mm, and height F is 22mm, and the hem width D of both sides is 5.5mm, and the width E between dual-side and middle lingual protrusion is 5.5mm; The width N of I shape silicon steel sheet is 5.5mm, and length A is 33mm.

The beneficial effects of the utility model:

The wide C of tongue of the utility model EI shape structure F type series silicon steel sheet and the high F of window is more wide than the tongue of former EI shape structural series, window high, transformer is under equal bar volume part, core section is long-pending increases by 20%, and window is high increases by 15%, can make the power capacity of transformer increase more than 25%.

The utility model EI shape structure F type series silicon steel sheet core, transformer are in volume and other conditions all under identical condition, transformer can reduce more than 25% waste, province copper 25% left and right, if economize copper 50g by average every transformer, can save every year 2.5 ten thousand tons of copper, by 63 yuan/KG, calculate, can save more than 1,500,000,000 yuans every year.

The utility model EI shape structure F type silicon steel sheet core, can adopt and cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing punching and see figure tri-, shown in dash area be blinking scrap area=A/3 * A/6 (mm2). waste material accounts for 33 % of the gross area, stock utilization reaches more than 96%, is often only this and can be country's saving silicon steel sheet more than 130,000 tons, is worth nearly 1,000,000,000 yuans, product is reduced costs, enterprise increases economic benefit, for country saves valuable material, energy-conserving and environment-protective.

The utility model EI shape structure F type series silicon steel sheet core is a kind of EI shape structural series silicon steel sheet core of novelty.It has filled up the blank of China, the silicon steel sheet specification of the application on the wattage transformer below 1.5KV is that EI27F to EI150F. is width A=27 mm to the A=150 mm of EI shape structure F type series silicon steel sheet, if apply EI shape structure F series silicon steel sheet core on the middle low power transformer of 1.5KVA-100KVA left and right, can produce huger Social benefit and economic benefit.

Accompanying drawing explanation

Fig. 1 is the coiled silicon steel sheet structure schematic diagram that existing EI35 shaped iron core adopts

Fig. 2 is structural representation of the present utility model

Fig. 3 is that the utility model is cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing punching, more than 96% schematic diagram of stock utilization.

1, E shape silicon steel sheet; 2, I shape silicon steel sheet; 3, waste material.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

As shown in Figure 1, a kind of EI shape structure F type silicon steel sheet for transformer, the profile of described silicon steel sheet is E shape and I shape, the silicon steel sheet 1 of an E shape and an I shape silicon steel sheet 2 are combined into square structure, described foursquare length A, height B; Width between hem width D, dual-side and the middle lingual protrusion of the length A of E shape silicon steel sheet 1, height G, the wide C of middle lingual protrusion, height F, both sides is E; Width N, the length A of I shape silicon steel sheet 2, this structure meets following condition:

A = B；

C = A/3；

D = E = N = C/2 = A/6；

F = B-2N =2/3 A；

G = B- N =5/6 A。

Embodiment mono-:

An EI33F type silicon steel sheet for transformer, foursquare length A, height B are 33mm; The length A of E shape silicon steel sheet is 33mm, and height G is 27.5mm, and the wide C of middle lingual protrusion is 11mm, and height F is 22mm, and the hem width D of both sides is 5.5mm, and the width E between dual-side and middle lingual protrusion is 5.5mm; The width N of I shape silicon steel sheet is 5.5mm, and length A is 33mm.

The utility model EI shape structure F type silicon steel sheet core, can adopt and cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing punching and see Fig. 3, shown in dash area be blinking scrap area=A/3 * A/6 (mm2). waste material accounts for 33 % of the gross area, stock utilization reaches more than 96%, is often only this and can be country's saving silicon steel sheet more than 130,000 tons, is worth nearly 1,000,000,000 yuans, product is reduced costs, enterprise increases economic benefit, for country saves valuable material, energy-conserving and environment-protective.

The utility model does not relate to partly all prior aries that maybe can adopt same as the prior art to be realized.

Claims

1. an EI shape structure F type silicon steel sheet for transformer, the profile of described silicon steel sheet is E shape and I shape, it is characterized in that: the silicon steel sheet of an E shape (1) and an I shape silicon steel sheet (2) are combined into square structure, described foursquare length A, height B; Width between hem width D, dual-side and the middle lingual protrusion of the length A of E shape silicon steel sheet (1), height G, the wide C of middle lingual protrusion, height F, both sides is E; Width N, the length A of I shape silicon steel sheet (2), this structure meets following condition:

A = B；

C = A/3；

D = E = N = C/2 = A/6；

F = B-2N =2/3 A；

G = B- N =5/6 A。

2. EI shape structure F type silicon steel sheet for transformer according to claim 1, is characterized in that foursquare length A, height B are 33mm; The length A of E shape silicon steel sheet (1) is 33mm, and height G is 27.5mm, and the wide C of middle lingual protrusion is 11mm, and height F is 22mm, and the hem width D of both sides is 5.5mm, and the width E between dual-side and middle lingual protrusion is 5.5mm; The width N of I shape silicon steel sheet (2) is 5.5mm, and length A is 33mm.