Integrated Vehicle Heat Pump Layout for Low-Temperature Heating
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Solution Overview
Problem
Existing vehicle heat management systems fail to efficiently manage heat in different driving modes, leading to energy inefficiencies, poor heating performance at low temperatures, and inadequate integration of heat management components, which complicates vehicle design and increases weight.
Innovation Solution
A highly integrated heat management system that includes a first and second heat exchanger, a heat pump with specific pipelines and valves, and a control valve group to optimize heat exchange and distribution, allowing independent operation of modules and flexible communication paths to manage heat from battery, electric assembly, and engine modules, eliminating the need for a front cabin air refrigerating heat exchanger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radiators are arranged in the front cabin to meet heat management requirements, then heating and cooling functions are provided, but the weight of the front cabin increases and arrangement space is reduced
Solution Approach 1:
The patent integrates the air refrigerating heat exchanger with the existing radiator structure, combining multiple heat management functions into a single integrated component. This merging eliminates the need for separate radiators while providing both heating and cooling capabilities, thereby reducing front cabin weight and optimizing space arrangement.
2Temperature
If the temperature is lower than 5°C, conventional heat management systems provide heating, but the heating effect of each module is poor and sufficient heat source cannot be provided
Solution Approach 1:
The integrated heat exchanger system performs multiple functions including heating, cooling, and heat recovery across different operating conditions. By utilizing waste heat from the engine and battery through the integrated exchanger, the system provides sufficient heating capability in low temperatures while improving overall energy efficiency.
3Loss of energy
If the heat pump module operates to provide heating, then energy efficiency is improved, but excess heat interacts with other circuits in extraction process and cannot maximize energy efficiency
Solution Approach 1:
The integrated heat exchanger acts as an intermediary that manages heat transfer between different circuits (engine, battery, cabin). It coordinates heat extraction and distribution, allowing the heat pump module to operate efficiently while preventing excessive heat interaction that would reduce energy efficiency.
4Productivity
If rapid warm-up of engine and heating of passenger compartment are conducted in parallel, then both functions are achieved, but energy consumption increases
Solution Approach 1:
The system converts the waste heat generated during engine warm-up into a useful resource for heating the passenger compartment. The integrated heat exchanger captures and redirects this otherwise wasted thermal energy, enabling parallel engine warm-up and cabin heating while actually reducing total energy consumption.
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 energy utilization, reduces energy loss, optimizes vehicle arrangement, and decreases weight by allowing modules to operate efficiently in various conditions, improving passenger compartment comfort and battery performance while reducing the need for additional heat exchangers.
Implementation Method 1
a first heat exchanger having a first heat exchange passage and a second heat exchange passage; a second heat exchanger having a third heat exchange passage and a fourth heat exchange passage
Implementation Method 2
a heat pump including a compressor, a heating pipeline, a first heat exchange pipeline, a refrigerating pipeline, a gas-liquid separator
Implementation Method 3
a condenser disposed on the heating pipeline
Implementation Method 4
an evaporator disposed on the refrigerating pipeline
Data Source
AI summary
A heat management system includes a first heat exchanger, a second heat exchanger, a heat pump, an electric assembly waterway, a radiator waterway, a battery waterway, and a heat exchange waterway. The heat pump module includes a first heat exchange pipeline and a second heat exchange pipeline. A first heat exchange passage and a second heat exchange passage of the first heat exchanger are respectively disposed on the second heat exchange pipeline and the heat exchange waterway. A third heat exchange passage of the second heat exchanger is disposed on the first heat exchange pipeline, and a fourth heat exchange passage of the second heat exchanger is in communication with the radiator waterway. The radiator waterway and the electric assembly waterway may be in communication in series.