CN2285506Y

CN2285506Y - High energy-saving low-noise surround iron core transformer

Info

Publication number: CN2285506Y
Application number: CN 97200752
Authority: CN
Inventors: 章成铭; 陈铁男
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-22
Filing date: 1997-01-22
Publication date: 1998-07-01
Anticipated expiration: 2007-01-22

Abstract

The utility model relates to a surrounding iron core transformer, which is composed of the combination of an iron core, a skeleton, and a winding. The iron core is formed by at least two O-shaped surrounding frame bodies which are combined together, each O-shaped surrounding frame body is formed by magnetism conducting band stocks which are continuously surrounded according to the order of narrow first and wide second or wide first and narrow second, the length of the magnetism conducting band stocks is equal or is not equal, and the width of the magnetism conducting band stocks is different. The edges of the frame of two same sized O-shaped surrounding frame bodies are tightly attached to combine a single phase and case type surrounding iron core, another big O-shaped surrounding frame body is sheathed on the outside of the iron core to combine a three phase surrounding iron core with three core column, and the big and a small O-shaped surrounding frame bodies are tightly sheathed together to form a single phase core type surrounding iron core. The core column of the iron core is a step semicircle or a circle.

Description

High energy-saving low-noise wound core transformer

The utility model relates to a kind of transformer, relate to a kind of wound core transformer or rather, this transformer comprises rectifier transformer, isolating transformer, oil-filled transformer, gas-insulated transformer, dry-type transformer, voltage transformer and reactor etc.

Transformer mainly is made up of iron core and coil, and the iron core of existing transformer is a laminated structure, promptly adopts the lamination mode that the stem stem silicon steel sheet of plurality of specifications or the iron yoke silicon steel sheet stack of plurality of specifications are constituted.By the iron core of stack moulding, all there is inevitable slit in the junction of every lamination and causes the increase of magnetic resistance and iron loss.In addition, the magnetization capacity of seam causes the increase of transformer magnetizing current again, has reduced power factor, has increased reactive power consumption, has had a strong impact on the power supply quality of electrical network.Noise when the existence of transformer seam has also caused operation, index cause serious environmental to pollute up to the 45-70 decibel, and particularly at the transformer of indoor operation, its noise also has a strong impact on people health.

The purpose of this utility model is a kind of high energy-saving low-noise wound core transformer of design, with the seam problem of thorough solution laminated core structure transformer.

High energy-saving low-noise wound core transformer of the present utility model by iron core, be set in the skeleton on the iron core stem stem and the coil that is wrapped on the skeleton constitutes, is characterized in that:

Described iron core is constituted around framework by at least two O types; Described O type is to be made of by the wide or earlier wide narrow order continued circling in back in earlier narrow back magnetic conducting band material isometric or not isometric and that width is different around framework, and the O type becomes the stepped profile semicircle around the cross section of framework stem stem.

Described iron core is around framework by two onesize O types, fit tightly the single-phase shell-type wound core of composition with an edge, outer edge stem stem cross section becomes the stepped profile semicircle, and edge SMIS post cross section is the stepped profile circle that is formed by two identical stepped profile semicircle butt joints of diameter in the sticking part.

Described iron core is nested with the three stem stem three-phase wound cores that two onesize O types are formed around framework by a big O type around framework, two onesize O types fit tightly with an edge around framework, and the cross section of stem stem is the stepped profile circle that is formed by two identical stepped profile semicircle butt joints of diameter in outer edge stem stem and the inside casing.

Described iron core is nested with the single-phase core type ring formed on around framework at a little O type around iron core by a big O type around the framework driving fit, and edge stem stem cross section is to be justified by the stepped profile that two identical stepped profile semicircles butt joints of diameter form.

Described skeleton is the cylinder that is made of two semicircle cylindrical shell butt joints.

The thickness of described magnetic conducting band material is 0.5 millimeter to 0.02 millimeter.

Described iron core does not have the seam slit, and iron core column is opening not.

Is basic building block with O type of the present utility model around framework, after combination and special process processing, again with electromagnetic wire respectively around last transformer required elementary, the secondary coil number of turn, just can produce single-phase core type ring around appendiron core transformer, single-phase shell-type around iron stamen transformer and three stem stem three-phase wound core transformers.

Further specify technology of the present utility model below in conjunction with embodiment and accompanying drawing.

Fig. 1. the utility model O type is around the main TV structure schematic diagram of framework;

Fig. 2. Figure 1A-A is to cross-sectional view;

Fig. 3. the two O type wound core master TV structure schematic diagrames that constitute around framework by two onesize O types;

Fig. 4. A-A is to cross-sectional view among Fig. 3;

Fig. 5. the wound core master TV structure schematic diagram that constitutes around framework around framework fit two onesize O types by a big O type;

Fig. 6. A-A is to cross-sectional view among Fig. 5;

Fig. 7. unify the wound core master TV structure schematic diagram that little O type constitutes around framework by a big O type around the framework cover;

Fig. 8. A-A is to cross-sectional view among Fig. 7;

Fig. 9. coil insulation skeleton structure schematic diagram;

Figure 10. the action schematic diagram of coiling on wound core;

Figure 11. with the single-phase shell-type wound core transformer device structure schematic diagram of iron core winding moulding shown in Figure 3;

Figure 12. with three stem stem three-phase wound core transformer device structure schematic diagrames of iron core winding moulding shown in Figure 5;

Figure 13. with the single-phase core type ring of iron core winding moulding shown in Figure 7 around the appendiron core transformer structural representation.

Referring to Fig. 1, Fig. 2, thickness with whole volume is the permeability magnetic material (comprising silicon steel sheet) of 0.5mm-0.02mm, (change width of band material is more little to be processed into the band material that width do not wait and became stepped variation on its slitter line, ladder is crossed and is getted over slyness, and the O type is got over approximate half-circular or circle around the framework cross section).Become O type around framework by the first wide order in narrow back with the continuous lap wound of annular solid with the magnetic conducting band material that processes, shown among Fig. 11, its A-A to cross-section structure as shown in Figure 2, edge stem stem cross section is two interior convex ladder semicircles.In the ladder semicircle each is approximate rectangular to be that band material lap wound by a kind of width constitutes.

Referring to Fig. 3, Fig. 4, two onesize O type frameworks 1 are closely combined two O type wound cores with an edge, as shown in Figure 3, its A-A to cross-section structure as shown in Figure 4, edge SMIS post cross section is a Step Circular in the sticking part, be made of the semicircle butt joint of two ladders, outer edge stem stem cross section is still two interior convex ladder semicircles.In like manner, among the figure each in Step Circular or the ladder semicircle approximate rectangular all be that band material lap wound by a kind of width constitutes.

Referring to Fig. 5, Fig. 6, outside two O type wound cores of Fig. 3, Fig. 4, form a big O type around framework 2 with the magnetic conducting band material that processes by the narrow continuous lap wound of order in earlier wide back again, as shown in Figure 5, the big O type of formation closely is nested with the core structure of the little O type of two identical sizes around framework 1 around framework 2, its A-A to cross-section structure as shown in Figure 6, its outer edge stem stem cross section and in edge SMIS post cross section be Step Circular, constitute by the semicircle butt joint of two ladders.In like manner, among the figure each in the Step Circular approximate rectangular also all be that band material lap wound by a kind of width constitutes.

Referring to Fig. 7, Fig. 8, the O of Fig. 1, Fig. 2 type around framework 1 outside, form a big O type around framework 3 by the narrow continuous lap wound of order in earlier wide back again with the magnetic conducting band material that processes, as shown in Figure 7, the big O type of formation closely is nested with the core structure of little O type around framework 1 around framework 3.Its A-A to cross-section structure as shown in Figure 8, edge stem stem cross section is made of the semicircle butt joint of two ladders.With aforementioned, each among the figure in the Step Circular is approximate rectangular also all to be that band material lap wound by a kind of width constitutes.

The O type all can go up the coiling finished product at another Chinese patent " ring structure iron core make-up machine " of the applicant around framework 1,2,3.

Referring to Fig. 9,4 one-tenth cylindrical shapes of coil insulation skeleton are made of two semi-cylindrical shaped butt joints, and seam is 41, is enclosed within during use on the stem stem of wound core.

Referring to Figure 10, during coiling, as long as the coil insulation skeleton 4 that is nested with on the iron core stem stem is rotated.Adopt the applicant's another Chinese patent " ring structure iron core Transformer Winding Machines ", coiling goes out transformer required elementary, number of secondary turns.5 is the stem stem of arbitrary iron core among the figure, and 6 are the coiling drive, and 7 is electromagnetic wire, and 8 is the electromagnetic wire pay off rack, and 9 is driving chain or belt (also available gear drive).

With Fig. 3, Fig. 5, wound core shown in Figure 7 be placed on carry out stress relief annealing in the special-purpose annealing furnace and handle after, again by coiling on therein a stem stem of method shown in Figure 10, two stem stems, three stem stems, just can be made into as shown in figure 12 three stem stem three-phase wound core transformers, single-phase core type ring as shown in figure 13 around appendiron core transformer and single-phase shell-type wound core transformer as shown in figure 11.Among Figure 11,10 is the coil of single-phase shell-type wound core transformer, and 11 is transformer core.Among Figure 12,12 is the coil of three-phase three stem stem wound core transformers, and 13 is transformer core.Among Figure 13,14 is the coil of single-phase core type ring around appendiron core transformer, and 15 is transformer core.

High energy-saving low-noise wound core transformer of the present utility model is compared with traditional laminated core structure transformer has following advantage:

1, the energy-conservation 30-40% of own loss, no-load current decline 80-90%;

2, noise objective is lower than 10 decibels;

3, iron core does not have seam magnetization capacity, has improved the power factor of transformer, has reduced reactive loss, improves The power supply quality of electrical network;

4, raw material have descended about 30%, have reduced manufacturing cost;

5, the volume of transformer and weight have significantly decline;

6, wound core machine-shaping machineryization, production efficiency improve 5-8 doubly;

7, iron core adopts and need not clamping device around mode, has avoided the loss that brings because of the clamping force of iron core;

8, iron core annular coiling, the ultrathin permeability magnetic material manufacturing of very suitable employing can be given full play to ultrathin magnetic conduction material The good magnetization characteristic of material, the performance level of raising transformer, laminated core structure then can't utilize this characteristic.

Claims

1, a kind of high energy-saving low-noise wound core transformer by iron core, be set in the skeleton on the iron core stem stem and the coil that is wrapped on the skeleton constitutes, is characterized in that:

2, high energy-saving low-noise wound core transformer according to claim 1, it is characterized in that: described iron core is around framework by two onesize O types, fit tightly the single-phase shell-type wound core of composition with an edge, outer edge stem stem cross section becomes the stepped profile semicircle, and edge newel cross section is the stepped profile circle that is formed by two identical stepped profile semicircle butt joints of diameter in the sticking part.

3, high energy-saving low-noise wound core transformer according to claim 1, it is characterized in that: described iron core is nested with the three stem stem three-phase wound cores that two onesize O types are formed around framework by a big O type around framework, two onesize O types fit tightly with an edge around framework, and the cross section of stem stem is the stepped profile circle that is formed by two identical stepped profile semicircle butt joints of diameter in outer edge stem stem and the inside casing.

4, high energy-saving low-noise wound core transformer according to claim 1, it is characterized in that: described iron core is nested with the single-phase core type ring formed on around framework at a little O type around iron core by a big O type around the framework driving fit, and edge stem stem cross section is to be justified by the stepped profile that two identical stepped profile semicircles butt joints of diameter form.

5, high energy-saving low-noise wound core transformer according to claim 1 is characterized in that: described skeleton is the cylinder that is made of two semicircle cylindrical shell butt joints.

6, high energy-saving low-noise wound core transformer according to claim 1, it is characterized in that: the thickness of described magnetic conducting band material is 0.5 millimeter to 0.02 millimeter.

7, high energy-saving low-noise wound core transformer according to claim 1, it is characterized in that: described iron core does not have the seam slit, and iron core column is opening not.

8, high energy-saving low-noise wound core transformer according to claim 1 is characterized in that: the rectifier transformer, isolating transformer, oil-filled transformer, gas-insulated transformer, dry-type transformer, voltage transformer, the reactor that comprise single-phase core formula, single-phase shell-type, three-phase three stem stem wound cores.