Manufacturing method of double-injection-molded battery terminal for battery

Abstract

A manufacturing method of a double-injection-molded battery terminal for a battery comprises the following steps: processing a conductive pole into a metal pole with an annular convex ring in the middle, a base at the bottom and an electric connection part at the top; coating a resin coupling agent on the outer peripheral surfaces of the metal pole and the annular convex ring, and placing the metal pole in a mold with the temperature of 190-250 DEG C and the pressure of 15-80 kg for injection molding of a soft inner injection molding layer; placing a metal column body in a mold with the temperature of 190-250 DEG C and the pressure of 50-120kg, arranging a hard outer plastic layer on the outer peripheral surface of the inner injection molding layer at the position of the annular convex ring in an injection molding manner, and when the hard plastic layer is arranged on the inner injection molding layer in an injection molding manner, the inner peripheral wall of the outer plastic layercompressing the outer diameter of the inner injection molding layer by 0.1-1mm and being tightly pressed and fastened together; and taking out the pole of the injection-molded hard outer plastic layerfrom the mold. The manufacturing method has the advantages of convenience in processing, low manufacturing cost, simple pole structure, convenience in mounting, capability of being used for high-speed rails and good shockproof and leakage-proof effects.

Description

technical field [0001] The invention relates to a manufacturing technology of battery poles, in particular to a manufacturing method of double-injection-molded battery terminals used on batteries. Background technique [0002] There is an existing Chinese utility model patent with the application number CN201720808201.3 titled "Pole of Lead-Acid Battery", which discloses a pole of a lead-acid battery, including a copper core insert and a lead cast on the copper core insert. The set, and the copper core insert has a slot for the connection of the external conductor, and the end of the lead set that is far away from the copper core insert is provided with an annular baffle, and the annular baffle faces away from the copper core insert There is a structure in which the lead sleeve and the ABS separator are injection-molded on one side. The existing lead-acid battery adopts the welding method of the pole and the lead sleeve, and injects epoxy resin into the groove between the le...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this pole is that with the use of the battery, the epoxy resin will age and harden, causing cracks, especially in the use environment with frequent vibrations such as motor vehicles, the aging and cracking parts of the epoxy resin will cause acid creeping problems

In addition, the process of injection molding with lead sleeves is very cumbersome, and processes such as terminal welding, epoxy glue sealing, and sealant curing lead to high production costs, low production efficiency, and unsatisfactory use effects, etc.

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