Integrated Coolant Supply Module for Electric Drive Motors
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Solution Overview
Problem
In electric vehicles, the installation of separate water pumps for coolant circulation in each drive motor is challenging due to space constraints, leading to reduced productivity and mountability issues.
Innovation Solution
A coolant supply module with a reservoir tank, main body, pump mounting portions, valve mounting portion, and controller that integrates water pumps and simplifies pipe connections, allowing coolant to be efficiently supplied to both front and rear wheel drive motors, reducing the number of components and improving layout and assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate water pumps are installed for each drive motor in the electric component cooling circuit, then coolant circulation to each motor is ensured, but mounting space is insufficient and layout constraints occur
Solution Approach 1:
The patent merges multiple separate water pumps into a single integrated water pump unit that serves both drive motors. The pump housing contains multiple pump bodies that can be mounted on a single engine, eliminating the need for separate pump installations at each motor location and resolving the space constraint issue while maintaining reliable coolant circulation to both motors.
Solution Approach 2:
The integrated water pump design provides multi-functionality by enabling a single pump unit to supply coolant to multiple drive motors simultaneously. The pump housing and mounting structure are designed to accommodate multiple pump bodies that can serve different motors, making the system universal and adaptable to various motor configurations without requiring separate dedicated pumps for each motor.
2Reliability
If separate water pumps are mounted for each drive motor, then coolant supply to each motor is ensured, but installation time increases and productivity is lowered
Solution Approach 1:
By combining multiple pump functions into a single integrated unit with a common housing and mounting structure, the installation process is simplified from multiple separate mounting operations to a single assembly installation. This reduces installation time and improves productivity while ensuring reliable coolant supply to all drive motors through the integrated pump system.
3Reliability
If separate water pumps are installed for each drive motor, then individual coolant circulation is achieved, but mountability is reduced in narrow spaces
Solution Approach 1:
The integrated water pump design combines multiple pump functions into a single mountable unit that can be installed in narrow engine spaces. The compact housing and unified mounting structure improve ease of installation and maintenance compared to multiple separate pumps, while the internal configuration maintains individual coolant circulation paths to each drive motor through separate pump bodies or configurable flow paths.
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
The module facilitates smooth coolant supply to drive motors, enhances space utilization in narrow spaces, reduces component count, simplifies pipe layouts, and improves mountability and maintainability, while minimizing separate components and assembly complexity.
Implementation Method 1
a water pump for circulating a coolant should be provided in each drive motor provided on front and rear wheels in the electric component cooling circuit
Implementation Method 2
the performance of the motor may be secured by effectively removing heat occurring from the fuel cell or battery and the motor
Data Source
AI summary
A coolant supply module includes a reservoir tank configured to store a coolant, a main body connected to the reservoir tank so that the coolant stored in the reservoir tank flows, at least one pump mounting portion formed in the main body so that at least one water pump is mounted, a valve mounting portion formed in the main body between the at least one pump mounting portion so that a valve device is mounted, and a controller mounted in the main body and electrically connected to the at least one water pump, wherein the main body includes a branch portion allowing a portion of a coolant introduced into one of the at least one pump mounting portion to flow into another pump mounting portion.