CN205595183U

CN205595183U - Iron core is rolled up to hexagonal foldable triangular prism shape transformer opening in cross -section

Info

Publication number: CN205595183U
Application number: CN201520986130.7U
Authority: CN
Inventors: 齐侠
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-19
Filing date: 2015-12-03
Publication date: 2016-09-21
Anticipated expiration: 2025-12-03
Also published as: CN106783061A

Abstract

The utility model discloses an iron core is rolled up to hexagonal foldable triangular prism shape transformer opening in cross -section, including iron core group, the iron core is rolled up with the seamless triangular prism shape structure of assembling of central angle 120o's angle by three independence and big or small structure homogeneous phase single -phase opening together by iron core group, the middle vacancy that the iron core was rolled up to single -phase opening is the window, the upper end of window is top yoke, the lower extreme of window is yoke down, be the stem stem between top yoke and the lower yoke, stack -up becomes every group silicon steel sheet stock area of single -phase opening book iron core and takes two parts to form by the first material area of rectangle and right angled triangle's second material, second material area reduces along the extending direction width in first material area gradually, by every group silicon steel sheet stock area through bending, the cross -section of cuting the stem stem of the single -phase opening book iron core of back stack -up one -tenth is isosceles trapezoid, the cross -section of the three post of the iron core group after assembling is regular hexagon. This iron core is rolled up to hexagonal foldable triangular prism shape transformer opening in cross -section material utilization rate height, low in production cost, production efficiency are high, manufacturing process is simple.

Description

A kind of cross section hexagonal folding stereo delta transformer open coil iron core

Technical field

This utility model relates to transformer core field, specifically provides a kind of cross section hexagonal folding stereo delta transformer open coil iron core.

Background technology

At present, domestic existing stereo triangle transformer open coil iron core mainly includes following two core structure: 1, become three open coil iron cores by curve stalloy billot stack after bending, shearing of three groups of independences, and volume iron core of remaining silent three is assembled into sectional area for R type tridimensional triangle iron core structure with 120 ° of inclined-planes, core section after assembly amasss as rounder and more smooth circular configuration, common name R type volume iron core；2, three open coil iron cores are become by three groups of independences by multistage broken line type stalloy billot stack after bending, shearing, and by three open coil iron cores with 120 ° of director circle type tridimensional triangle iron core structures being assembled into, be generally called polygon or roll up iron core for broken line type.The triangular solid reel iron core transformer of both the above structure is assembled by three independent open cores, therefore, tridimensional triangle iron core has that magnetic circuit is the shortest and each phase is from becoming the full symmetric equal characteristic in loop, but, both the above form is respectively present problems with, sectional area is that R sections stem stem cross section is approximately circular, activity coefficient is higher, but stock utilization is low, only about 87%-92%, and although polygon or broken line type volume iron core stock utilization are high, but actual production process needs to store the stalloy billot of tens kinds of width, thus increase production cost, production efficiency is relatively low.

Therefore, how existing delta transformer open coil iron core is carried out the improvement in structure, to improve the utilization rate of stalloy material strip, to reduce production cost, become people's problem demanding prompt solution.

Summary of the invention

In consideration of it, the purpose of this utility model is to provide a kind of cross section hexagonal folding stereo delta transformer open coil iron core, at least to solve when manufacturing opening coiled core of transformer, the problems such as the utilization rate of stalloy material strip is low, production cost is high.

nullThe technical scheme that this utility model provides is: a kind of cross section hexagonal folding stereo delta transformer open coil iron core，Including iron core group，Iron core group is the 3-D triangle structure become with the angle seamless assembled of central angle 120 by the single-phase open core that three independences and size structure are the most identical，The middle vacancy of single-phase open core is window，The upper end of the window of single-phase open core is upper yoke，The lower end of the window of single-phase open core is lower yoke，It is stem stem between upper yoke and lower yoke，Stack becomes the often group stalloy material strip of single-phase open core to be made up of the first material strip of rectangle and second material strip two parts of right angled triangle，Second material strip is gradually reduced along the bearing of trend width of the first material strip，By often organizing stalloy material strip through bending、After shearing, the cross section of the stem stem of the single-phase open core that stack becomes is isosceles trapezoid，The cross section of three posts of the iron core group after assembly is regular hexagon.

Preferably, every single-phase open core is provided with two groups of fractures, and described two groups of fractures are respectively arranged at the top of two stem stems of single-phase open core.

Further preferably, described single-phase open core is the square shape volume iron core with eight 135 or 12 150 bending angles.

The beneficial effects of the utility model are:

1, the cross section of three posts of the iron core group after this utility model assembly is regular hexagon, sub-circular, and activity coefficient is high；

2, the three-phase three-column stereoscopic stable of the hexagonal folding stereo in this utility model cross section delta transformer open coil iron core, fully ensure that three-phase magnetic circuit balances, therefore third-harmonic component forms closed-loop path in independent frame, decreases the harmonic component of no-load current largely；

3, during making this utility model cross section hexagonal folding stereo delta transformer open coil iron core, the raw-material utilization rate of stalloy material strip is 100%, and the iron core of every kind of capacity has only to a kind of width stalloy material strip raw material, not only increase the raw-material utilization rate of stalloy material strip, decrease raw-material stock, reduce production cost.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings and this utility model is described in further detail by embodiment:

Fig. 1 is the structural representation of this utility model transformator volume iron core；

Fig. 2 is the structural representation of single-phase open core one embodiment；

Fig. 3 is the structural representation of another embodiment of single-phase open core；

Fig. 4 is the schematic cross-section of the iron core group after assembly；

Fig. 5 is the structural representation often organizing stalloy material strip that stack becomes single-phase open core.

Detailed description of the invention

Below in conjunction with specific embodiment, this utility model is further explained, but does not limit to this utility model.

nullAs shown in Figure 1，This utility model provides a kind of cross section hexagonal folding stereo delta transformer open coil iron core，Including iron core group，Iron core group is the 3-D triangle structure become with the angle seamless assembled of central angle 120 by the single-phase open core 1 that three independences and size structure are the most identical，Such as Fig. 2、Shown in Fig. 3，The middle vacancy of single-phase open core 1 is window 2，The upper end of the window 2 of single-phase open core 1 is upper yoke 3，The lower end of the window 2 of single-phase open core 1 is lower yoke 4，It is stem stem 5 between upper yoke 3 and lower yoke 4，As shown in Figure 5，Stack becomes the often group stalloy material strip 6 of single-phase open core 1 to be made up of the first material strip 61 of rectangle and second material strip 62 two parts of right angled triangle，Second material strip 62 is gradually reduced along the bearing of trend width of the first material strip 61，As shown in Figure 4，By often organizing stalloy material strip 6 through bending、After shearing, the cross section of the stem stem 5 of the single-phase open core 1 that stack becomes is isosceles trapezoid，The cross section of three posts of the iron core group after assembly is regular hexagon.

nullThe manufacturing process of the single-phase open core of this cross section hexagonal folding stereo delta transformer open coil iron core has only to the stalloy material strip raw material of a kind of width，Wherein，Stack becomes the often group stalloy material strip of single-phase open core to include two parts: the first material strip of rectangle and the second material strip of right angled triangle，Wherein，The width of the first material strip width raw-material with stalloy material strip is identical，Through bending、After shearing, stack becomes the single-phase open core inner round portion that the stem stem cross section of single-phase open core assumes diamond in shape，Second material strip is the right angled triangle material strip that stalloy material strip raw material extends along a length thereof direction cutting，Wherein，Second material strip is gradually reduced along the length bearing of trend width of the first material strip and start width width raw-material with stalloy material strip is identical，Second material strip is through bending、After shearing, stack becomes the outer perimeter section that the stem stem cross section of single-phase open core is the single-phase open core of equilateral triangle，Wherein，The outer perimeter section stack of single-phase open core is in the outside of the inner round portion of single-phase open core，The cross section of the stem stem after the inner round portion of single-phase open core and outer perimeter section stack is isosceles trapezoid，The cross section of three posts of the iron core group after assembly is regular hexagon，Additionally，During using stalloy material strip raw material cutting the second material strip，Two group of second material strip can be obtained simultaneously，This two group of second material strip can be respectively used to make the outer perimeter section of two groups of single-phase open cores，Realize 100% utilization of material strip.

Kekelé structure count due to iron core, make the coil can individually coiling, when producing maintenance, at aperture slots, iron core can be opened and be installed or replaced coil, improvement as technical scheme, as shown in Figure 2 and Figure 3, every single-phase open core 1 is provided with two groups of fractures, and described two groups of fractures are respectively arranged at the top of two stem stems 5 of single-phase open core 1.

Wherein, described single-phase open core 1 is square shape volume iron core (as shown in Figure 3) at square shape volume iron core (as shown in Figure 2) or 12 150 bending angles with eight 135 bending angles.

Detailed description of the invention of the present utility model is to carry out writing according to the mode gone forward one by one, and highlights the difference of each embodiment, and its similar portion can be with cross-reference.

Above in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible on the premise of without departing from this utility model objective, various changes can be made.

Claims

null1. cross section hexagonal folding stereo delta transformer open coil iron core，Including iron core group，Iron core group is the 3-D triangle structure become with the angle seamless assembled of central angle 120 by the single-phase open core (1) that three independences and size structure are the most identical，The middle vacancy of single-phase open core (1) is window (2)，The upper end of the window (2) of single-phase open core (1) is upper yoke (3)，The lower end of the window (2) of single-phase open core (1) is lower yoke (4)，It is stem stem (5) between upper yoke (3) and lower yoke (4)，It is characterized in that: stack becomes often group stalloy material strip (6) of single-phase open core (1) to be made up of first material strip (61) of rectangle and the second material strip (62) two parts of right angled triangle，Second material strip (62) is gradually reduced along the bearing of trend width of the first material strip (61)，By often organizing stalloy material strip (6) through bending、After shearing, the cross section of the stem stem (5) of the single-phase open core (1) that stack becomes is isosceles trapezoid，The cross section of three posts of the iron core group after assembly is regular hexagon.
2. according to the opening coiled core of transformer described in claim 1, it is characterised in that: every single-phase open core (1) is provided with two groups of fractures, and described two groups of fractures are respectively arranged at the top of two stem stems (5) of single-phase open core (1).
3. according to the opening coiled core of transformer described in claim 1 or 2, it is characterised in that: described single-phase open core (1) is the square shape volume iron core with eight 135 or 12 150 bending angles.