Continuous production method of PI film heater and production equipment of PI film heater

Abstract

The invention relates to a continuous production method of a PI film heater. The continuous production method comprises the following steps that (1), one side of a long roll-shaped heating resistor film is laminated onto a long roll-shaped PI film through a laminating machine, and then vulcanization is carried out through a continuous vulcanizing machine; (2), the heating resistor film on the PI film is manufactured into a heating core through etching; (3), the other side of the heating resistor film manufactured into the heating core in the step (2) is laminated with a PI film through the laminating machine by adopting the same process in the step (1), and then vulcanization is carried out through the continuous vulcanizing machine, thus a semifinished long roll-shaped PI film heater is obtained; and (4), the semifinished long roll-shaped PI film heater manufactured in the step (3) is subjected to size slitting, and the heating core is connected with a lead wire, thus the finished PIfilm heater is obtained. The invention also relates to production equipment of the PI film heater. The continuous production method and the production equipment have the advantages that the probability of bubbles during laminating is low, the product yield can be raised, continuous mass production can be realized, the production efficiency is improved and the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to a production method of a PI film heater, in particular to a continuous production method and production equipment of a PI film heater. Background technique [0002] Due to the poor performance of the power battery of new energy vehicles at low temperature, it is necessary to add a heating system to the battery. However, according to the requirements of the mileage in the national policy, the weight of the entire new heating system is particularly concerned. Due to the PI (polyimide ) The film heater is thin, light and soft, can be in good contact with the battery, and has high heating efficiency, so using a PI film heater to heat the battery is the best choice. Existing production of PI film heater includes PI film, heating core and wire, the production method of existing PI film heater, its steps are, (1), make the long rolling heating resistance film by etching the long rolling heating core , and then cut the long roll-shape...

AI Technical Summary

Problems solved by technology

Existing production of PI film heater includes PI film, heating core and wire, the production method of existing PI film heater, its steps are, (1), make the long rolling heating resistance film by etching the long rolling heating core , and then cut the long roll-shaped heating core into several sheet-shaped heating cores of the same size as the heating core in the finished PI film heater; (2), cut the long-rolled PI film into several sheet-shaped PI films; ( 3) Manually attach the one-piece heating core to two pieces of PI film, and press it through a pressing machine to obtain a semi-finished PI film heater; (4) Vulcanize the semi-finished PI film heater, and then Connect the wires (the connection process of the wires) to get the finished PI film heater; because in the production method of the existing PI film heater, the long-rolled heating core and the PI film of the long-curled hair are all divided into slices through etching. , and then by manually bonding the one-piece heating core to the two-sheet PI film, it is easy to generate air bubbles when the one-piece heating core and the two-sheet PI film are manually bonded, which reduces the product qualification rate; At the same time, because the lamination in the production process requires a lot of manual operations, the production efficiency is low, the manufacturing cost is high, and continuous mass production cannot be achieved.

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