Transformer using copper-coated aluminum connecting terminal, copper-coated aluminum connecting terminal, and manufacturing method for copper-coated aluminum connecting terminal

Abstract

The invention provides a transformer, which serves as the transformer with a connecting terminal for electrically connecting a circuit on a copper power supply side or a line side with an aluminum voltage transformation wire winding. The transformer is characterized in that the connecting terminal is an aluminum terminal of which one part outside an aluminum core is completely coated by copper and the rest part is made of aluminum and is partially coated by copper; the part coated by copper is electrically connected with copper on the line side; the part only made of the aluminum is electrically connected with the terminal of a winding of the transformer; therefore, the copper consumption is reduced to the maximum extent; and the invention provides copper-coated aluminum connecting terminals for the transformer, which have the characteristics of diversified sizes, specifications and shapes, capacity, simple manufacturing process and excellent properties.

Description

technical field [0001] The invention relates to a transformer using a copper-clad aluminum connection terminal, a method for manufacturing the copper-clad aluminum connection terminal and a copper-clad aluminum connection terminal manufactured by the method. Specifically, use the least amount of copper, reduce manufacturing costs and product prices, use various sizes and shapes of aluminum connection terminals with partial copper cladding to avoid potential corrosion between different metals, and manufacture transformers and aluminum connection terminals covered with barrels The method and the copper-clad aluminum connection terminal manufactured by the method. Background technique [0002] Generally, the outer box of the transformer body has the primary winding and secondary winding of the wound iron core, and has high-voltage and low-voltage connection terminals, which are used to connect the windings of these transformers and the external lead-in and lead-out lines. [0...

AI Technical Summary

Problems solved by technology

[0011] However, after the copper-clad aluminum core wire is completely covered with copper on the aluminum core wire, a part of copper needs to be removed again, and the lower end formed by the aluminum 102 connected to the aluminum winding and the lower part of the aluminum 102 still have residual copper 104, while the copper The consumption is large, the manufacturing cost is high, the product price is high, and the manufacturing of the connecting terminals with large specifications is difficult, which makes the production of large-capacity terminals difficult.

[0012] Moreover, a space is likely to be generated between the copper 104 and the aluminum 102 when bending, and it is impossible to produce various types of terminals.

[0013] As far as the inverter is concerned, if the connection terminals are all made of copper, the overall weight will be heavy and the manufacturing cost will be high.

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