Pre-injection molding primary injection product and plastic coating and injection molding secondary-injection product

Abstract

The invention discloses a pre-injection molding primary injection product and a plastic coating and injection molding secondary-injection product. The pre-injection molding primary injection product comprises a terminal and at least one plastic body; the plastic body comprises a first front surface, a first back surface and two side surfaces; at least one positioning column is arranged on each ofthe first front surface, first back surface and at least one side surface of the plastic body; inner ring melt ribs and outer ring melt ribs are arranged on the peripheries of the positioning columns;and distances are kept between the inner ring melt ribs and the positioning columns and between the outer ring melt ribs and the inner ring melt ribs. The plastic coating and injection molding secondary-injection product comprises a coating plastic body arranged on the periphery of the pre-injection molding primary-injection product; the upper surfaces of first positioning columns are flush withthe upper surface of the coating plastic body; and the upper surfaces, far away from the plastic body, of second positioning columns are flush with the corresponding side face of the coating plastic body. According to the pre-injection molding primary injection product and the plastic coating and injection molding secondary injection product of the invention, the pre-injection molding primary-injection product is designed firstly; the positioning and melt ribs are additionally adopted to prevent leakage; the pre-injection molding primary-injection product is subjected to secondary plastic encapsulation, so that the secondary-injection product can be obtained; and problems in the positioning, electric breakdown resistance and air tightness of flexible terminals can be solved.

Description

technical field [0001] The invention relates to the design field of embedded injection molded parts, in particular to a pre-injection one-shot product and a rubber-coated injection-molded two-shot product. Background technique [0002] With the development and popularization of new energy vehicles, automotive electronic products are used more and more widely. Automotive electronic products are inseparable from weak current signal transmission and strong current transmission. The subsequent development of copper terminals embedded in plastic injection molding has also developed rapidly. Using the excellent electrical conductivity of copper terminals and the insulation of plastics, the possibility of complex product design and molding, the use of embedded injection molded parts in automotive electronics is increasing. . At the same time, automotive electronic products have very strict functional requirements for terminal embedded overmolding products, such as air tightness, e...

AI Technical Summary

Problems solved by technology

However, the current terminals embedded in plastic injection molding products cannot solve the positioning of soft terminals in injection molding products well, and cannot solve the airtightness problem of connector terminals.

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