CN201364794Y

CN201364794Y - Amorphous alloy iron core transformer

Info

Publication number: CN201364794Y
Application number: CNU2008201356954U
Authority: CN
Inventors: 康利容; 曾祥军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-12-16
Anticipated expiration: 2018-10-07

Abstract

The utility model relates to an amorphous alloy iron core transformer, which comprises a high-voltage coil, a low-voltage coil, a main insulation structure and an amorphous alloy iron core structure, and is characterized in that insulating material with pores is coated on an iron core to form the amorphous alloy iron core structure, and a resin layer is arranged outside the insulating material; and an insulating plate layer is arranged outside the resin layer. The transformer reduces the use of coil electromagnetic wires, and reduces the load loss and no-load loss of the transformer simultaneously; and the noise of the transformer is 4 dB to 8 dB lower than that of the traditional amorphous alloy transformer under the same circumstances.

Description

A kind of Amorphous Alloy Core Transformer

Technical field

The utility model relates to a kind of Amorphous Alloy Core Transformer, particularly has the transformer of material-saving insulation system and denoising structure.

Background technology

Because amorphous structure coercive force under the effect in magnetic field of amorphous alloy material is very low, its magnetic hysteresis loss obviously reduces, after being made as the paper tinsel band, thickness is generally 0.03mm, only be 1/10th of ordinary silicon steel plate thickness, and its resistivity is higher, after making transformer core, with respect to traditional silicon steel plate core, therefore its energy-saving effect highly significant has had in the whole world widely and has used.

Amorphous Alloy Core Transformer generally speaking, magnetic circuit is to be combined by the rectangular core frame, coil is a rectangular configuration.Except four corners of square coil, major axis and short-axis direction can be reduced to the electric field between two parallel plates, parallel plate electrode except that edge because of the edge effect non-uniform electric, high-low pressure main oil gallery mid portion electric field can think equal, is approximately uniform electric field.Under equidistant and voltage, its Main Insulation Structure of Electric is than the transformer electric strength height of typical circular structure.

But equate under the situation at area, the girth of circle is the shortest, the needed coil electromagnetism line of square coil is greater than the typical circular coil, and amorphous rectangular configuration unshakable in one's determination is to become, particularly three kinds of width of the amorphous alloy strips of import are fixed, therefore, the consumption of Amorphous Alloy Core Transformer coil electromagnetism line is bigger.

On the other hand, the noise of transformer also is important problem, and wherein iron core is the main source of transformer noise, and magnetostriction unshakable in one's determination causes vibration under the alternating flux, thereby produces noise.The principal element of decision noise height is magnetic flux density and the clamping degree unshakable in one's determination in the iron core.Non-crystaline amorphous metal is very responsive to mechanical stress, can not give too big strength clamping, and the magnetostriction degree of amorphous alloy core is also than silicon steel sheet height, and therefore, the noise of amorphous core is higher than silicon steel plate core.And the square coil winding process does not resemble cylindrical layer winding, and the width of cloth of straight line portion is not enough to size Chang Chaoda and the firm degree of colligation, and coil vibration in service also can produce noise.Amorphous Alloy Core Transformer is than the noise high 6-8dB of tradition with the silicon steel sheet transformer of capacity on the whole.The method of common solution noise is to reduce magnetic flux density in the iron core, and this needs the more coil electromagnetic wire just can reach target equally, acts on limitedly, and has increased cost.

Summary of the invention

The purpose of this utility model is at the consumption of above-mentioned Amorphous Alloy Core Transformer coil electromagnetism line big, and the deficiency that noise is big provides a kind of transformer with insulation system and denoising structure, so that transformer compliance with environmental protection requirements and reach energy-saving and cost-reducing target.

Amorphous Alloy Core Transformer of the present utility model, comprise high-tension coil, low-voltage coil, Main Insulation Structure of Electric, the amorphous alloy core structure is characterized in that the amorphous alloy core structure is the insulating material that coats the band pore of going up unshakable in one's determination, the insulating material preferred grid cloth of band pore, the insulating material of band pore has resin bed outward, and resin bed also has layer of insulation board outward, and resin layer thickness is the 0.5-1.5 millimeter; Seam crossing unshakable in one's determination adds and is unshakable in one's determination with wide high permeability material, and high permeability material coats the noise reduction insulation board outward; The preferred high magnetic conduction silicon steel sheet of high permeability material can be placed the 2-4 sheet.

Described Main Insulation Structure of Electric comprises the little oil duct of stay, soft corner-ring, insulating barrier, covering cable paper and insulation damping block.The little oil duct of stay is processed as the stay of suitable length by cardboard, and it is uniform to press coil girth one determining deviation, and stay cements on the cardboard and forms; Covering cable paper, several are formed by cable paper; Soft corner-ring is manufactured by crimped paper and is formed, and exceeds the coil upper and lower end parts and stretches out; Insulating barrier is formed by electrician's paperboard; The damping block that will insulate is positioned over the low-voltage coil outer surface.

Coil internal layer appropriate location adds the sound-absorbing non-conductive fibre, coil upper and lower end parts cushioning shock absorber part, and folder insulation, iron yoke, the insulation of pad pin all can be installed shock absorber part additional.

Amorphous Alloy Core Transformer of the present utility model, compare with the transformer of prior art, reduced the coil main insulating structure, the transformer coil main insulating structure of traditional structure is the 8-9 millimeter, the main insulating structure mean radius of Amorphous Alloy Core Transformer of the present utility model is the 4-5 millimeter, reduce the use of coil electromagnetism line, also reduced the load loss and the no-load loss of transformer simultaneously.Simultaneously, the utility model has also reduced the noise of transformer, under square one than traditional little 4-6dB of amorphous alloy transformer noise.

Description of drawings

Fig. 1 is an Amorphous Alloy Core Transformer structural representation of the present utility model;

Fig. 2 is an Amorphous Alloy Core Transformer core construction schematic diagram of the present utility model;

Fig. 3 is an Amorphous Alloy Core Transformer Main Insulation Structure of Electric schematic diagram of the present utility model;

Fig. 4 is an Amorphous Alloy Core Transformer of the present utility model seam construction schematic diagram unshakable in one's determination.

Embodiment

Embodiment below in conjunction with description of drawings the utility model optimum.

A kind of Amorphous Alloy Core Transformer comprises high-tension coil 1, low-voltage coil 2, Main Insulation Structure of Electric 3, amorphous alloy core structure 4, wherein amorphous alloy core structure 4 comprises amorphous alloy core 5, the unshakable in one's determination 5 outer one deck grid cloth 6 that coated, epoxy resin layer 7 is arranged outside the grid cloth 6, outside the epoxy resin layer 7 is layer of insulation board 8, and the thickness of epoxy resin layer 7 is the 0.5-1.5 millimeter, adds at seam unshakable in one's determination 9 places with unshakable in one's determination with wide high permeability material 10, add the 2-4 sheet, high permeability material coats noise reduction insulation board 11 outward.

Main Insulation Structure of Electric 3 comprises the little oil duct 12 of stay, soft corner-ring 13, insulating barrier 14, covering cable paper 15 and insulation damping block 16, the little oil duct 12 of stay is processed as the stay 17 of suitable length by cardboard, and it is uniform to press coil girth one determining deviation, and stay 17 cements on the cardboard and forms; Covering cable paper 15 is made up of several cable papers; Soft corner-ring 13 is manufactured by crimped paper and is formed, and exceeds the coil upper and lower end parts and stretches out; Insulating barrier 16 is formed by electrician's paperboard, is positioned at low-voltage coil 2 outer surfaces.

Claims

1. Amorphous Alloy Core Transformer, comprise high-tension coil, low-voltage coil, Main Insulation Structure of Electric, the amorphous alloy core structure, it is characterized in that the amorphous alloy core structure is the insulating material that coats the band pore of going up unshakable in one's determination, the insulating material of band pore has epoxy resin layer outward, and epoxy resin layer is outward a layer of insulation board.

2. Amorphous Alloy Core Transformer according to claim 1 is characterized in that described seam crossing unshakable in one's determination adds with unshakable in one's determination with wide high permeability material, and high permeability material coats the noise reduction insulation board outward.

3. Amorphous Alloy Core Transformer according to claim 1 is characterized in that described Main Insulation Structure of Electric comprises the little oil duct of stay, soft corner-ring, insulating barrier, covering cable paper and insulation damping block.

4. Amorphous Alloy Core Transformer according to claim 3 is characterized in that the little oil duct of described stay is processed as the stay of suitable length by cardboard, and it is uniform to press coil girth one determining deviation, and stay cements on the cardboard and forms.

5. Amorphous Alloy Core Transformer according to claim 3 is characterized in that several form described covering cable paper by cable paper.

6. Amorphous Alloy Core Transformer according to claim 3 is characterized in that described soft corner-ring is manufactured by crimped paper to form, and exceeds the coil upper and lower end parts and stretches out.

7. Amorphous Alloy Core Transformer according to claim 3 is characterized in that described insulating barrier is positioned at the low-voltage coil outer surface.

8. Amorphous Alloy Core Transformer according to claim 1 is characterized in that described epoxy resin layer thickness is the 0.5-1.5 millimeter.