Integrated Casing for Electric Work Vehicle Motors
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Solution Overview
Problem
Conventional electric work vehicles have a complex and costly casing structure supporting right and left motors, leading to reduced strength and increased costs due to individually cantilevered motor casings and a complicated power transmission mechanism.
Innovation Solution
An integrated casing structure with a central casing housing both left and right motors, along with their respective transmission mechanisms, which enhances rigidity and reduces costs by eliminating the need for additional reinforcement and simplifying the power transmission system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individually cantilevered motor casings are used for left and right motors, then each motor can be independently supported, but the overall structure becomes complex and costly with reduced strength
Solution Approach 1:
The patent combines the left and right motor casings into a single integrated casing structure that supports both motors. This merging eliminates the need for separate cantilevered motor casings, reducing structural complexity while maintaining reliable motor support through the unified casing design
2Ease of manufacture
If separately extended motor casings are used for left and right motors, then each motor has dedicated housing, but manufacturing costs increase significantly
Solution Approach 1:
The patent merges the left and right motor housings into a single integrated casing structure. This consolidation reduces the number of parts that need to be manufactured and assembled, significantly lowering manufacturing costs while eliminating the complex separately extended casing configuration
3Ease of operation
If complex casing structure with gear casing extending at right angles is used, then power transmission is achieved, but the overall structure becomes significantly complicated
Solution Approach 1:
The patent integrates the gear casing and motor casings into a unified structure where the gear casing forms part of the overall casing assembly rather than extending separately at right angles. This merging simplifies the overall casing structure while maintaining the necessary power transmission functionality from motors to rear wheels
Data Source
AI summary
An electric work vehicle includes a casing structure connected to a vehicle frame and having a central casing, a left casing, and a right casing. The vehicle further includes a left rear wheel supported by the left casing, a right rear wheel supported by the right casing, a left motor housed in a left region of the central casing, a right motor housed in a right region of the central casing, a left transmission mechanism housed in the left casing for transmitting power from the left motor to the left rear wheel, and a right transmission mechanism housed in the right casing for transmitting power from the right motor to the right rear wheel.