Motor-Inverter Mount Layout for Frontal Collision Protection
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Solution Overview
Problem
In vehicles, the risk of damage to electrical components like the inverter increases during frontal collisions due to the displacement of the motor, which can lead to contact and potential electrical leakage.
Innovation Solution
A support device is designed to rotate the inverter upward and rearward in conjunction with the motor, maintaining the relative distance between the motor and inverter, and utilizing a first mount with a rotary shaft as the center of rotation to prevent contact with the battery and hood.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inverter is fixed on a slide mechanism that slides toward the rear side of the vehicle, then the probability of damage to the inverter during frontal collision is reduced, but the structural complexity and potential for electrical leakage increase
Solution Approach 1:
The patent applies the dynamics principle by making the inverter movable rather than fixed. The inverter is supported by a movable support structure that allows it to move upward and rearward during frontal collision, dynamically responding to the collision force. This dynamic configuration reduces damage probability while avoiding the complexity of dedicated slide mechanisms by utilizing the motor's rotational movement.
Solution Approach 2:
The patent applies the universality principle by making the inverter's support structure serve multiple functions: it supports the inverter during normal operation and simultaneously provides collision protection by moving the inverter upward and rearward during frontal collision. This multi-functionality eliminates the need for separate protective mechanisms, reducing overall structural complexity.
2Reliability
If the motor is supported to be rotatable with a rotary shaft, then the inverter can move upward and rearward during collision, but the manufacturing precision and assembly difficulty increase
Solution Approach 1:
The first mount is designed as a dynamic support structure with a rotary shaft that enables the inverter to move upward and rearward during frontal collision. This dynamic capability allows the system to respond to collision forces while maintaining manageable manufacturing precision requirements through the use of standard rotary mounting mechanisms.
3Reliability
If the inverter is positioned above the motor, then the relative distance is maintained during motor rotation, but the space requirement and device complexity increase
Solution Approach 1:
The patent applies the dimensionality change principle by positioning the inverter above the motor in the vertical dimension rather than laterally adjacent in the horizontal plane. This vertical arrangement maintains the required relative distance during motor rotation while utilizing unused vertical space, avoiding increased lateral dimensions and reducing overall space requirements.
Data Source
AI summary
A vehicle includes a motor, an electrical component, and a support device. The motor is supported by a first mount in such a manner as to be rotatable with a rotary shaft serving as a center of rotation, and the rotary shaft extends in a lateral direction at a predetermined position on a lower side. The electrical component is coupled to the motor. The support device is configured to support the electrical component above the motor and move the electrical component upward and rearward in response to rotation of the motor.