Modular Motor Housing Cover for Multi-Power Electric Drive Units
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Solution Overview
Problem
Existing electric drive devices for vehicles require a new common housing when increasing the power of the electric motor, leading to increased costs due to the need for multiple housing types.
Innovation Solution
A housing assembly for electric drive devices that includes a housing with a first portion for the electric motor and a second portion for the speed reducer, along with an electric motor cover that forms an electric motor cavity with the first housing portion, allowing the dimensions of the cavity to be adjusted by replacing the electric motor cover alone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the dimensions of the electric motor are increased to increase the power, then the power is improved, but the housing dimensions need to be increased requiring multiple housing types
Solution Approach 1:
The housing assembly is divided into a housing and a separate electric motor cover. The electric motor cover can be replaced with different specifications to accommodate electric motors of different powers, while the main housing remains the same. This segmentation allows the housing assembly to adapt to different power requirements without requiring multiple complete housing types.
2Adaptability or versatility
If multiple types of common housings are prepared for electric drive devices of different powers, then the adaptability to different powers is improved, but the cost of components increases
Solution Approach 1:
The housing is designed as a universal component that can accommodate electric motors of different powers through the replacement of electric motor covers. The main housing structure remains the same across different power applications, while only the electric motor cover needs to be changed. This multi-functionality approach allows a single housing design to serve multiple power requirements, reducing the total number of housing types needed.
Data Source
AI summary
A housing assembly for an electric drive device, the housing assembly including a housing and an electric motor cover. The housing includes a first housing portion, the first housing portion at least partially accommodating an electric motor of the electric drive device, and a second housing portion located at one end of the first housing portion, the second housing portion accommodating a speed reducer of the electric drive device. The electric motor cover is fitted to another end of the first housing portion and includes a cover portion and a cavity portion. The cavity portion and the first housing portion together form an electric motor cavity for accommodating the electric motor.