Integrated Power Module for Electric Vehicles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power modules for electric vehicles face inefficiencies in the connection and configuration between DC motors and motor driving units, particularly in converting DC power to AC power efficiently, which affects the vehicle's performance and weight reduction.
Innovation Solution
A power module configuration that includes a power module case with an inverter to convert DC power to AC power, an AC power conductor, and a motor connected within the case to generate rotational force, eliminating the need for separate mounting and cable connections between the motor and motor driving unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate mounting and cable connections are used between motor and motor driving unit, then ease of assembly is improved, but contact resistance and electromagnetic disturbances increase
Solution Approach 1:
The motor and motor driving unit are integrated into a single power module assembly, eliminating separate cable connections and mounting interfaces. This merging of components directly reduces contact resistance and electromagnetic disturbances while maintaining ease of assembly through modular integration.
2Reliability
If motor and motor driving unit are integrated in power module, then contact resistance and electromagnetic disturbances are reduced, but device complexity increases
Solution Approach 1:
The power module is designed as a segmented integrated unit where the motor and motor driving unit form a cohesive module that can be treated as a single component. This segmentation approach simplifies the overall system configuration while maintaining the reliability benefits of integration.
3Power
If high output motor is used to enhance accelerating ability and maximum speed, then vehicle performance is improved, but mounting weight and volume increase
Solution Approach 1:
The motor and motor driving unit are merged into a compact integrated power module, achieving high output performance while reducing overall mounting weight and volume compared to separate component arrangements. The integration allows for optimized space utilization and reduced redundant structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances efficiency by reducing contact resistance and electromagnetic disturbances, improving system performance, and providing a lightweight, miniaturized power module with excellent waterproofing and shock resistance.
Implementation Method 1
an inverter provided within the power module case and configured to convert a direct current (DC) power into an alternating current (AC) power
Implementation Method 2
a motor provided in the power module case and connected to the AC power conductor to receive the AC power and generate a rotational force
Data Source
AI summary
Provided is a power module in which a motor and a motor driving unit are efficiently configured and a vehicle having the same. The power module includes a power module case forming an external form; an inverter provided within the power module case and configured to convert a direct current (DC) power into an alternating current (AC) power; an AC power conductor provided in the power module case and connected to the inverter to cause the AC power converted by the inverter to flow therethrough; and a motor provided in the power module case and connected to the AC power conductor to receive the AC power and generate a rotational force.