A new energy automobile multifunctional electric drive shell cover die-casting die and die-casting method

CN123024863APending Publication Date: 2026-11-03SUZHOU YUEZHONG AUTOMOBILE TECH CO LTD
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Patent Information

Application Number
CN202611145541.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-30
Publication Date
2026-11-03

AI Technical Summary

Technical Problem

In existing die-casting molds for electric drive housing covers, the fixed gate section makes it difficult to balance filling speed and feeding effect. The feeding channel solidifies before the casting solidifies, and the side away from the gate cannot get sufficient feeding, resulting in frequent shrinkage cavities and porosity defects.

Method used

A multifunctional electrically driven die-casting mold for housing cover is designed. The timing coordination between the gating mechanism and the support gating groove is adopted. Through the linkage of the trigger rod, trigger ring plate, return spring, telescopic spring and sealing plate, the side opening of the molten metal is automatically realized after filling, forming a multi-path feeding channel to ensure that the molten metal can reach the far end and thick area of ​​the casting.

Benefits of technology

It achieves a balance between filling speed and shrinkage compensation effect, significantly reduces shrinkage cavities and porosity defects, has a simple and reliable structure, and does not increase the external dimensions of the mold.

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Abstract

The present application relates to new energy automobile die casting processing technical field, more specifically, the present application provides a new energy automobile multifunctional electric drive shell cover die casting die and die casting method, the present application includes fixed mold sleeve plate, fixed mold insert installed in the inside of fixed mold sleeve plate, movable mold sleeve plate and movable mold insert installed in the inside of movable mold sleeve plate, the present application is through the timing cooperation design of sprue mechanism and branch runner, before the completion of the filling of the cavity by the metal liquid, the side access keeps closed, the metal liquid only enters the cavity through the main gate and the runner, at this time, the gate section is small, the higher filling speed can be obtained, the metal liquid is filled in the cavity quickly, when the cavity is filled, the injection plug triggers the opening of the side access of the gate mechanism, the branch runner is communicated with the gate sleeve, the metal liquid enters the first feeding channel and the second feeding channel through the branch runner for feeding, at this time, the feeding channel is in the open state, the sufficient feeding of the thick area and the remote area of the casting is realized.
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