CN214476900U - Energy-saving single-phase amorphous alloy iron core transformer for electric furnace - Google Patents

Abstract

The utility model relates to an electric stove is with single-phase metallic glass iron core transformer of energy-saving, include: the amorphous alloy transformer comprises an amorphous alloy iron core, a primary coil, a secondary coil, a lead copper bar, an upper clamp, a lower clamp and a lug post assembly; the amorphous alloy iron core is formed by splicing two symmetrical amorphous alloy single frames; the primary coil is sleeved on the central column of the amorphous alloy iron core; the secondary coil is concentrically sleeved outside the primary coil at intervals; the secondary coil is composed of a plurality of U-shaped coils which are vertically arranged; the lead copper bar is connected with the opening end of the U-shaped coil; the upper clamping piece and the lower clamping piece are respectively and fixedly arranged at the top and the bottom of the amorphous alloy iron core; the lug assembly is connected with the primary coil. The utility model discloses a transformer, the structure is unique, and is simple reasonable, and production convenient assembling can effectively solve the loss of current transformer for smelting big, and power consumptive many problem, and is with low costs, and energy-conserving effect is showing, has good economic benefits, environmental benefit and social, has market promotion and using value.

Description

Energy-saving single-phase amorphous alloy iron core transformer for electric furnace

Technical Field

The utility model relates to the technical field of transformers, more specifically relate to an energy-saving single-phase metallic glass iron core transformer for electric stove.

Background

Amorphous alloy iron core distribution transformers have been widely used in rural power grids, urban power distribution projects, factories, coal mines, hospitals, markets, schools and other places due to the advantages of small exciting current, low no-load loss, remarkable energy-saving effect and the like. Because metal smelting is a high-energy-consumption industry, the requirements of low transformer voltage, large current, strong overload capacity, high insulation level and stable power supply are met. The technical requirements are met, and meanwhile, the operation cost of the existing enterprises is high, and the competitive pressure is high; in addition, the existing transformer has large loss, uses electricity of tens of millions of degrees in a year, charges billions of yuan of electricity, consumes more electricity and wastes resources seriously.

Therefore, how to combine the characteristics of the amorphous alloy iron core to develop an energy-saving single-phase amorphous alloy iron core transformer for an electric furnace, which can effectively reduce the loss of the transformer in the smelting process, further reduce the power consumption of enterprises, reduce the cost of the enterprises and effectively save energy, is a technical problem to be solved urgently by technical personnel in the field.

Disclosure of Invention

The present invention aims at solving at least to some extent one of the above-mentioned problems of the prior art.

Therefore, an object of the utility model is to provide a can effectual reduction transformer be smelting the loss of in-process, reduce the power consumption of enterprise, practice thrift the national energy, promote the profit of enterprise and the electric stove of competitiveness simultaneously with energy-saving single-phase metallic glass transformer unshakable in one's determination, include:

the amorphous alloy transformer comprises an amorphous alloy iron core, a primary coil, a secondary coil, a lead copper bar, an upper clamp, a lower clamp and a lug post assembly; wherein:

the amorphous alloy iron core is formed by splicing two symmetrical amorphous alloy single frames, and a two-frame three-column structure is formed by splicing the two amorphous alloy single frames;

the primary coil is sleeved on the central column of the amorphous alloy iron core;

the secondary coil is concentrically sleeved outside the primary coil at intervals; the secondary coil is composed of a plurality of U-shaped coils which are vertically arranged;

the lead copper bar is connected with the open end of the U-shaped coil;

the upper clamping piece and the lower clamping piece are respectively and fixedly arranged at the top and the bottom of the amorphous alloy iron core;

the lug post assembly is arranged on the upper clamping piece; the lug assembly is connected with the primary coil.

The amorphous alloy iron core transformer has the beneficial effects that the amorphous alloy iron core is selected, so that the transformer is small in exciting current, low in no-load loss and better and remarkable in energy-saving effect. The structure of the transformer is different from that of a conventional transformer, a primary coil is adopted, secondary coils are concentrically arranged outside the primary coil at intervals, and the secondary coils are arranged into a U-shaped structure to form an open structure of the primary coil; the lead copper bar is directly drawn out from the U-shaped open end of the secondary coil, and the arrangement of the structure ensures that the transformer is more convenient and faster to assemble and is convenient to produce, install and use. The U-shaped opening degree of the secondary coil can influence parameters such as impedance of the transformer, the size of the U-shaped opening of the secondary coil can be adjusted according to actual conditions, and the secondary coil is flexible and highly applicable. The secondary coil is manufactured in a multi-section mode, and is directly connected with the lead copper bar after being formed, so that the internal eddy current loss is effectively reduced, and the performance of the transformer is ensured to be more stable.

Preferably, in the above energy-saving single-phase amorphous alloy core transformer for an electric furnace, the primary coil is subjected to vacuum dip coating treatment.

Has the advantages that: and the insulating property and the mechanical strength of the primary coil can be effectively improved by adopting vacuum dip coating treatment.

Preferably, in the energy-saving single-phase amorphous alloy iron core transformer for the electric furnace, the primary coil (2) is a multi-layer cylindrical coil formed by winding a plurality of Nomex paper-covered flat copper wires; and performing transposition treatment on a plurality of side-by-side Nomex paper-coated flat copper wires at the position of 1/2 turns of each layer of the primary coil (2).

Has the advantages that: the Nomex paper-coated flat copper wire has good high temperature resistance and insulating property. The transposition structure of the plurality of parallel Nomex paper-coated flat copper wires can ensure that the positions of the flat copper wires in a leakage magnetic field are the same, and the lengths of the flat copper wires are the same, so that the induction potentials are the same, the resistances are the same, circulating current is not generated, and additional loss is not increased.

Preferably, in the above energy-saving single-phase amorphous alloy iron core transformer for an electric furnace, the secondary coil is composed of two U-shaped coils arranged up and down.

Preferably, in the above energy-saving single-phase amorphous alloy iron core transformer for an electric furnace, the U-shaped coil is formed by stacking multiple layers of copper strips.

Has the advantages that: the U-shaped coils are formed by overlapping multiple layers of copper strips, the secondary coils are formed by a plurality of U-shaped coils in a vertically-segmented manner, the requirements of low voltage and large current are met, and the eddy current loss of the coils is reduced; and the amorphous alloy iron core has the characteristics of low no-load loss and low exciting current, the no-load loss is reduced by more than 70%, the load loss is reduced by more than 20%, and the energy-saving effect in the whole product operation process is very obvious.

Preferably, in the energy-saving single-phase amorphous alloy iron core transformer for the electric furnace, an air distance between the secondary coil and the primary coil is L, and L is more than or equal to 10 mm.

Has the advantages that: the arrangement of the air distance ensures good heat dissipation effect of the primary coil and the secondary coil.

Preferably, in the above energy-saving single-phase amorphous alloy iron core transformer for an electric furnace, the primary coil and the secondary coil are fixed by a spacer and a limiting block.

Has the advantages that: the setting through cushion and stopper has guaranteed the fixed stable effect of primary coil and secondary coil installation, can not take place to remove in the use and warp.

Preferably, in the energy-saving single-phase amorphous alloy iron core transformer for an electric furnace, the primary coil is provided with a plurality of contact terminals, and the contact terminals are connected with the terminals on the terminal assembly.

According to the technical scheme, compared with the prior art, the utility model discloses an energy-saving single-phase amorphous alloy iron core transformer for electric stove, unique structure, simple reasonable, production is convenient, can effectually solve the current transformer that smelts and use's loss big, the problem that power consumptive much, with low costs, energy-conserving effect is showing, has good economic benefits, environmental benefit and social, has market promotion and using value.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a perspective view of FIG. 1;

fig. 3 is a left side view of the present invention;

FIG. 4 is a perspective view of FIG. 3;

fig. 5 is a top view of the present invention;

fig. 6 is a perspective view of fig. 5.

Wherein: the coil assembly comprises an amorphous alloy iron core 1, a primary coil 2, a secondary coil 3, a lead copper bar 4, an upper clamp 5, a lower clamp 6 and a wiring terminal assembly 7.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment of the utility model discloses electric stove is with single-phase metallic glass iron core transformer of energy-saving can effectively reduce the loss of transformer in the smelting process, reduces the power consumption of enterprise, practices thrift the national energy, promotes the profit and the competitiveness of enterprise simultaneously.

Referring to fig. 1 to 6, an energy-saving single-phase amorphous alloy iron core transformer for an electric furnace includes: the device comprises an amorphous alloy iron core 1, a primary coil 2, a secondary coil 3, a lead copper bar 4, an upper clamping piece 5, a lower clamping piece 6 and a wiring terminal assembly 7; wherein:

the amorphous alloy iron core 1 is formed by splicing two symmetrical amorphous alloy single frames, and the two amorphous alloy single frames are spliced into a two-frame three-column structure;

the primary coil 2 is sleeved on the central column of the amorphous alloy iron core 1;

the secondary coil 3 is concentrically sleeved outside the primary coil 2 at intervals; the secondary coil 3 is composed of a plurality of U-shaped coils which are vertically arranged;

the lead copper bar 4 is connected with the opening end of the U-shaped coil;

the upper clamping piece 5 and the lower clamping piece 6 are respectively and fixedly arranged at the top and the bottom of the amorphous alloy iron core 1;

the terminal post assembly 7 is arranged on the upper clamping piece 5; the terminal block assembly 7 is connected to the primary coil 2.

In order to further optimize the above technical solution, the primary coil 2 is vacuum-dip-painted.

In order to further optimize the technical scheme, the primary coil 2 is a multi-layer cylindrical coil formed by winding a plurality of Nomex paper-wrapped flat copper wires; the plurality of Nomex paper-covered flat copper wires arranged side by side are transposed at the position of 1/2 turns per layer of the primary coil 2.

In order to further optimize the technical scheme, the secondary coil 3 consists of two U-shaped coils which are vertically arranged; the U-shaped coil is formed by overlapping multiple layers of copper strips.

In order to further optimize the technical scheme, the air distance between the secondary coil 3 and the primary coil 2 is L which is more than or equal to 10 mm.

In order to further optimize the technical scheme, the primary coil 2 and the secondary coil 3 are fixed through a cushion block and a limiting block.

In order to further optimize the above technical solution, a plurality of contact terminals are provided on the primary coil 2, and the contact terminals are connected with the terminals on the terminal block assembly 7.

The assembling method comprises the following steps:

s1, opening the lap joint of the two amorphous alloy iron single frames;

s2, connecting the lead copper bar 4 with the U-shaped open end of the secondary coil 3 to obtain a secondary coil assembly;

s3, placing the primary coil 2 and the secondary coil assembly on an assembly table; the secondary coil assembly is concentrically arranged on the outer side of the primary coil 2, and the air distance between the primary coil 2 and the secondary coil 3 is 10 mm;

s4, pushing a central column formed by combining two amorphous alloy single frames into the primary coil 2, closing lap joints of the two amorphous alloy single frames, and bundling for insulation;

s5, mounting the upper clamp 5 and the lower clamp 6 to complete the assembly of the body;

s6, hanging the assembled transformer body down an assembly table, and mounting and manufacturing a binding post assembly; finishing the assembly of the finished product;

and S7, performing performance test on the assembled finished product, and putting the assembled finished product into operation after the performance test is qualified.

The utility model discloses a service condition is, will assemble the finished product and transport and install at the scene, will 400V side power connection to terminal block 7 corresponding contact (A, A1), (A, A2), (A, A3) on one of them (three group of contacts are respectively in secondary coil 3 one side output corresponding 10V, 8V, 6V voltage); and then connecting an input side bus of the electric furnace to a lead copper bar 4 arranged on the secondary coil 3. After the connection is finished, the transformer can be put into operation. The secondary coil 3 adopts a structure that a plurality of layers of copper strips are manufactured into an upper section and a lower section, so that the requirement of low voltage and large current is met, and the eddy current loss of the coil is reduced; and the amorphous alloy iron core has the characteristics of low no-load loss and low exciting current, the no-load loss is reduced by more than 70%, the load loss is reduced by more than 20%, and the energy-saving effect in the whole product operation process is very obvious. Compared with the prior art, the utility model discloses the structure is unique, and is simple reasonable, and production is convenient, can effectively solve the loss of current transformer for smelting big, and power consumptive many problem can practice thrift about 30% for the enterprise every year charges of electricity, and energy-conserving effect is showing, has good economic benefits, environmental benefit and social, has marketing and using value.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (8)

1. An energy-saving single-phase amorphous alloy iron core transformer for an electric furnace is characterized by comprising: the coil comprises an amorphous alloy iron core (1), a primary coil (2), a secondary coil (3), a lead copper bar (4), an upper clamping piece (5), a lower clamping piece (6) and a wiring terminal assembly (7); wherein:

the amorphous alloy iron core (1) is formed by splicing two symmetrical amorphous alloy single frames, and a two-frame three-column structure is formed by splicing the two amorphous alloy single frames;

the primary coil (2) is sleeved on the central column of the amorphous alloy iron core (1);

the secondary coil (3) is concentrically sleeved outside the primary coil (2) at intervals; the secondary coil (3) is composed of a plurality of U-shaped coils which are vertically arranged;

the lead copper bar (4) is connected with the open end of the U-shaped coil;

the upper clamping piece (5) and the lower clamping piece (6) are fixedly arranged at the top and the bottom of the amorphous alloy iron core (1) respectively;

the lug post assembly (7) is arranged on the upper clamping piece (5); the lug post assembly (7) is connected with the primary coil (2).

2. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein the primary coil (2) is vacuum dip-painted.

3. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein the primary coil (2) is a multi-layer cylindrical coil formed by winding a plurality of Nomex paper-wrapped flat copper wires; and performing transposition treatment on a plurality of side-by-side Nomex paper-coated flat copper wires at the position of 1/2 turns of each layer of the primary coil (2).

4. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein the secondary coil (3) is composed of two U-shaped coils arranged up and down.

5. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein the U-shaped coil is formed by overlapping a plurality of layers of copper strips.

6. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein the air distance between the secondary coil (3) and the primary coil (2) is L, L is more than or equal to 10 mm.

7. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein the primary coil (2) and the secondary coil (3) are fixed through a spacer and a limiting block.

8. The energy-saving single-phase amorphous alloy iron core transformer for the electric furnace as claimed in claim 1, wherein a plurality of contact terminals are arranged on the primary coil (2), and the contact terminals are connected with the binding posts on the binding post assembly (7).

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