Heat pump system, heat management method and vehicle
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Solution Overview
Problem
Traditional heat pump systems in new energy vehicles are inefficient in providing heat in winter, leading to high energy consumption and increased manufacturing costs, and they fail to fully utilize waste heat generated by the motor.
Innovation Solution
A heat pump system incorporating an integrated heat exchanger with a superconducting liquid flow passage and a refrigerant flow passage, where the superconducting liquid absorbs waste heat from the motor and transfers it to the refrigerant, which then circulates through the heat exchanger to provide heat to the vehicle, reducing the need for additional power consumption and simplifying the system's structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional heat pump systems are used in new energy vehicles, then the vehicle can provide heating in winter, but the energy consumption is high and the cruising range decreases sharply
Solution Approach 1:
The patent converts the waste heat generated by the motor during operation into a useful heating resource. By capturing and transferring this previously wasted thermal energy to the heat pump system, the invention transforms a harmful energy loss into a beneficial contribution toward meeting the vehicle's heating demands, thereby reducing overall energy consumption from the power battery.
Solution Approach 2:
The heat pump system is designed to serve multiple functions: it provides heating for the passenger compartment while simultaneously utilizing waste heat from the motor through the integrated heat exchanger. This multi-functionality allows the system to meet heating demands more efficiently by combining ambient heat extraction with recovered waste heat, reducing reliance on power battery energy.
2Temperature
If traditional heat pump systems are installed to provide heating, then the vehicle can maintain passenger comfort in winter, but the manufacturing cost increases greatly
Solution Approach 1:
The patent merges the motor heat dissipation system with the heat pump heating system through an integrated heat exchanger. This combination allows the waste heat from the motor to be directly utilized by the heat pump system, eliminating the need for separate heating components and reducing overall system complexity and manufacturing cost while maintaining heating capability.
Solution Approach 2:
The integrated heat exchanger serves dual purposes: it acts as a heat dissipation conduit for the motor during operation and simultaneously functions as a heat source for the heat pump system during heating mode. This multi-functional design reduces the need for additional components, thereby lowering manufacturing costs while maintaining heating performance.
3Temperature
If traditional heat pump systems are used, then the vehicle can heat the passenger compartment, but the system cannot fully utilize the waste heat generated by the motor
Solution Approach 1:
The patent captures the waste heat that would otherwise be lost to the environment through the motor heat dissipating conduit and converts it into a useful heat source for the heat pump system. This transformation eliminates energy loss by redirecting waste thermal energy into the heating process, thereby improving overall energy utilization efficiency.
Solution Approach 2:
The integrated heat exchanger acts as an intermediary between the motor heat dissipation system and the heat pump refrigerant circulation loop. It facilitates heat transfer from the superconducting liquid carrying motor waste heat to the refrigerant, enabling the system to utilize waste heat effectively while maintaining the independence of both subsystems.
4Loss of energy
If an integrated heat exchanger with superconducting liquid is used to transfer waste heat, then energy utilization improves, but the system complexity increases
Solution Approach 1:
The patent combines the motor heat dissipation function and the heat pump heat exchange function into a single integrated heat exchanger unit. This merging eliminates the need for separate heat dissipation and heat exchange systems, reducing overall system complexity while enabling effective waste heat utilization through the superconducting liquid medium.
Solution Approach 2:
The integrated heat exchanger performs multiple functions within a single component: it serves as the heat dissipation conduit for the motor, the heat transfer medium carrier for the superconducting liquid, and the heat exchange interface for the refrigerant circulation loop. This multi-functionality reduces the number of separate components needed, thereby simplifying the overall system structure.
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 effectively provides sufficient heat to the vehicle in winter, improves energy utilization, reduces manufacturing costs, and increases the cruising range of new energy vehicles by reusing waste heat, while simplifying the system's layout and reducing the number of valves needed.
Implementation Method 1
the heat is transferred to the superconducting liquid flow passage through heat transfer of phase change
Implementation Method 2
an integrated heat exchanger integrated with a superconducting liquid flow passage and a refrigerant flow passage
Data Source
AI summary
A heat pump system, a heat management method and a vehicle are provided. The heat pump system includes an integrated heat exchanger integrated with a superconducting liquid flow passage and a refrigerant flow passage. The refrigerant flow passage is provided inside an on-board refrigerant circulation loop and is used for cooling and/or heating to adjust the temperature within a passenger compartment of a vehicle. The superconducting liquid flow passage is in communication with a motor heat dissipating conduit, for absorbing the heat generated by an on board motor and transferring the heat to the integrated heat exchanger by means of phase change heat transfer. The heat pump system can increase the energy utilization rate for the vehicle and reduce the allowable ambient temperature of the heat pump system.