Electric Motorcycle Thermal Module With Integrated Motor-Battery Loops
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Solution Overview
Problem
Existing thermal management systems for electric motorcycles suffer from dispersed components that occupy valuable space, increase arrangement complexity, and result in high internal flow resistance, leading to poor energy utilization and reduced motorcycle endurance.
Innovation Solution
An integrated thermal management system for electric motorcycles, where the motor and battery components are connected via a base board, with fluid and electrical connections integrated onto the board, allowing direct insertion into the battery and motor, eliminating external tubes and leads, and featuring a circulation loop for fluid exchange between the motor and battery loops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional air cooling or liquid cooling systems are used for battery thermal management, then cooling function is provided, but the motorcycle becomes top-heavy and handling is affected
Solution Approach 1:
The patent combines the battery cooling function with the motorcycle's existing heat dissipation system (radiator and cooling fan). The battery is positioned adjacent to the radiator, and cooling fluid flows from the radiator to the battery, allowing the same thermal management system to serve both engine and battery cooling needs, thereby eliminating the need for separate heavy cooling equipment for the battery.
2Device complexity
If battery thermal management is not addressed, then motorcycle structure remains simple, but battery performance degrades and safety issues arise
Solution Approach 1:
The patent makes the radiator serve dual functions: cooling the engine and cooling the battery. The cooling fluid circulation system is designed to transfer thermal energy from both the engine and battery through the radiator, allowing a single component to perform multiple thermal management functions without significantly increasing system complexity.
3Temperature
If active cooling measures are continuously applied to batteries, then battery temperature is controlled, but energy consumption increases
Solution Approach 1:
The patent converts the waste heat from the battery into a useful resource by using it to pre-heat the cooling fluid that will then cool the battery during high-temperature operation. This heat recovery approach reduces the energy required for active cooling while maintaining effective temperature control.
4Use of energy by moving object
If passive cooling methods are used for batteries, then energy consumption is reduced, but cooling effectiveness is insufficient
Solution Approach 1:
The patent designs a passive thermal management system where the battery's own heat generates natural convection currents in the cooling fluid, creating self-sustaining cooling flow without requiring external power sources. The system uses the battery's thermal energy to drive its own cooling process through natural convection and thermal radiation.
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 system enhances space utilization, reduces mounting complexity, and improves thermal management efficiency by optimizing fluid flow and energy use, ensuring effective heating and cooling functions tailored to electric motorcycle requirements.
Implementation Method 1
a first heat dissipation component configured to be in contact with the battery pack and dissipate heat of the battery pack
Implementation Method 2
a second heat dissipation component configured to blow air to the first heat dissipation component
Implementation Method 3
the control unit is configured to adjust output power of the battery pack based on the temperature of the battery pack
Data Source
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AI summary
The present disclosure provides a thermal management system for an electric motorcycle, including a base board, a motor thermal management loop, a battery thermal management loop, and an electrical line, where the motor thermal management loop includes a motor and a motor tube of the electric motorcycle; the motor tube is in fluid connection with the motor and includes a first fluid for cooling and/or heating the motor; the battery thermal management loop includes a battery and a battery tube of the electric motorcycle; the battery tube is in fluid connection with the battery and includes a second fluid for cooling and/or heating the battery; and the motor tube, the battery tube and the electrical line are located on the base board. The present disclosure further provides a thermal management module for the electric motorcycle and the electric motorcycle. The thermal management system and the thermal management module provided by the present disclosure can realize integrated thermal management for the electric motorcycle. This can make the thermal management system mounted simply, and improves an internal space utilization rate and a thermal management effect of the electric motorcycle.