CN201149807Y - Transformer special for inverter or contravariant (inversion) welding machine - Google Patents

Abstract

The utility model relates to a transformer, in particular to a transformer used for an inverter welding machine or inverter power supply equipment. The transformer used for an inverter power supply or an inverter welding machine provides a transformer with relatively low cost and smaller weight and comprises a primary coil and a secondary coil; the primary coil is made of aluminum wire or foil, while the secondary coil is also made of aluminum wire or foil. Though adopting low-cost aluminum wire or multi-string aluminum wires or foil, the transformer of the utility model has all the technical indicators not lower than that of copper; in particular, the high-frequency resistance, insulation, service life and other electrical characteristics of important indicators of the transformer are equivalent to that of copper; besides, the transformer is light in weight and can be widely used on the field of transformers.

Description

Inverter or inverter type welder dedicated transformer

Technical field

The utility model relates to a kind of transformer, relates in particular to a kind of inverter type welder or is used for the transformer of inverter device-specific.

Background technology

Transformer of the prior art, inverter particularly, the transformer that inverter type welder is used, coil all is to use the copper cash coiling, and the cost of transformer is just very high like this, thereby just causes the cost of complete machine also very high, and because the density of copper cash is bigger, cause the weight of transformer and power supply very big, thereby the weight of entire equipment is also very big, waits for transportation and brought certain trouble.From the prior art, people exist certain prejudice to aluminum steel, aluminium foil always, think that aluminum steel, aluminium foil can not be used for transformer, especially at inverter, just there is not the use of aluminum steel, aluminium foil in the inverter type welder field at all, and it all is the problem that is difficult to solution that a lot of parameters in the prior art in the production process are not all handled optimum, particularly winding tension and welding etc.

Summary of the invention

The purpose of this utility model is to overcome above defective, provides a kind of cost lower, inverter that weight ratio is less or inverter type welder transformer.

The technical solution of the utility model is such: it comprises primary coil, secondary coil, and primary coil is set to aluminum steel or aluminium foil, secondary aluminum steel or the aluminium foil of being set to.

The cross section of aluminum steel is 1.0～1.6 times of equal device copper cash, and aluminium foil is set to install on an equal basis 1.0～1.6 times of Copper Foil.

The diameter of aluminum steel can be set to 0.25 ~ 3.6mm.The thickness range of aluminium foil can be 0.1 ~ 3.0mm.

Aluminum steel can be set to sub-thread or more than two strands.

The tension range that takes up of aluminum steel is 0.2～16kg, and aluminium foil is 0.5～36kg.

Aluminium foil is provided with the compound inslation film outward.

Though transformer of the present utility model has adopted lower-cost aluminum steel or multiply aluminum steel, aluminium foil, every technical indicator all is not less than copper cash, especially electrical characteristic important indicators such as high-frequency electrical resistance, insulating properties and useful life all with copper quite.But also in light weight, can in field transformer, be extensive use of.

Description of drawings

Fig. 1 is the structural representation of the contravariant transformer of embodiment 1 of the present utility model;

Fig. 2 is the structural representation of the contravariant transformer of embodiment 2 of the present utility model.

Embodiment

Embodiment 1:

As shown in the figure, transformer of the present utility model comprises that matrix 1, primary coil are set to aluminium foil 2 and compare with Copper Foil 0.3mm, aluminum foil thickness is set to 0.35mm, what the resistivity of aluminium foil can be than Copper Foil yet in the case is big too many, secondary coil is an aluminium foil, and former Copper Foil is 0.3mm, use aluminium foil after thickness be 0.35mm, suitably strengthen iron core simultaneously, reduce the aluminium foil number of turns.3, the magnetic core of product is selected ferrite.When selecting aluminum foil thickness, consider kelvin effect, the degree of depth $H=12.7/\sqrt{\mathrm{}}f$ Select.So power consumption can be not bigger than the power consumption of the copper foil structure of equal transformer, and its volume is also not too large, still be wrapped on the original matrix 1, and the density of aluminium foil is lower, so the weight of whole transformer has just reduced, thereby alleviated the weight of entire equipment, alleviated the transportation burden; And the price comparison of aluminium is low, thus reduced the cost of (15%-30%) transformer, thus the cost of entire equipment has just reduced; And, solved the Insulation Problems of aluminium foil effectively at the arranged outside compound inslation film of aluminium foil.

In the course of processing, take up tension force and be set to 3.0kg, can very well aluminium foil be wound on the matrix like this.

Embodiment 2:

The difference of present embodiment and embodiment 1 is that the elementary of present embodiment is multiply aluminum steel 3, and the sub-thread diameter is set to 0.6mm, and it is 2.5kg that tension force is taken up in processing; The secondary 0.6mm multi cord that is similarly, taking up tension force is that 2.5kg. compares with multiply copper cash product, the aluminum steel product uses and use iron based nano crystal when design, reduced wire circle, keep resistance to increase, when the selection wire footpath, consider kelvin effect, the degree of depth simultaneously less than 5% $H=12.7/\sqrt{\mathrm{}}f$ Select.

Project organization is with example 1.

Embodiment 3:

The difference of present embodiment and embodiment 1 is that the high trade mark low-loss silicon steel sheet of use unshakable in one's determination uses the multiply aluminium enamel-covered wire equally.

Inverter of the present utility model or inverter type welder transformer, weight is little, and cost is low, can be at power supply with being extensive use of in the field transformer.

Claims (7)

1. inverter or inverter type welder dedicated transformer, it comprises primary coil, secondary coil, it is characterized in that: primary coil is set to aluminum steel or aluminium foil, secondary aluminum steel or the aluminium foil of being set to.

2. inverter type welder dedicated transformer according to claim 1 is characterized in that: the cross section of aluminum steel is 1.0～1.6 times of equal device copper cash, and aluminium foil is set to install on an equal basis 1.0～1.6 times of Copper Foil.

3. according to described inverter of claim 1 or inverter type welder dedicated transformer, it is characterized in that: the diameter of aluminum steel can be set to 0.25 ~ 3.6mm, and the thickness range of aluminium foil can be 0.1 ~ 3.0mm.

4. inverter according to claim 1 or inverter type welder dedicated transformer is characterized in that: aluminum steel can be set to the sub-thread aluminum steel or be set to more than two strands according to the skin effect.

5. inverter according to claim 1 or inverter type welder dedicated transformer is characterized in that: the tension range that takes up of aluminum steel is 2～16kg, and aluminium foil is 5～36kg.

6. inverter according to claim 1 or inverter type welder dedicated transformer is characterized in that: aluminium foil is provided with the compound inslation film outward.

7. inverter according to claim 1 or inverter type welder dedicated transformer is characterized in that: its iron core can be ferrite, silicon steel sheet, iron based nano crystal.

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