EV Thermal Loop Assembly for Independent Cabin and Battery Control
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Solution Overview
Problem
Current electric vehicles have limited thermal management capabilities, often requiring complex and costly systems that cannot efficiently heat or cool individual components separately, leading to conflicts between passenger comfort and battery safety, and result in high costs and large sizes.
Innovation Solution
A thermal management system with a compressor, water-cooled condenser, battery chiller, and valve body assembly that allows for separate loops for passenger compartment heating/cooling, battery heating/cooling, and electrical driver cooling, using integrated components to reduce complexity and cost while enabling flexible temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex pipeline routes and multiple components are used to form thermal management systems, then thermal management coverage is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies multi-functionality by enabling a single thermal management system to serve multiple purposes: it can heat or cool the battery, heat or cool the passenger compartment, and switch between different operational modes (first mode with battery heating, second mode with battery cooling, third mode with passenger compartment heating, fourth mode with passenger compartment cooling). This universal design allows the system to cover various thermal management needs without requiring separate dedicated systems for each function, thereby reducing overall device complexity while maintaining comprehensive thermal management coverage.
2Adaptability or versatility
If separate heating/cooling loops are implemented for different components, then thermal management flexibility is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamics through the use of a switching device that can dynamically reconfigure the thermal management system's operational mode. The switching device allows the system to transition between different connection configurations: connecting the water-cooled condenser to the battery chiller for battery thermal management, or connecting it to the passenger compartment for climate control. This dynamic reconfiguration capability provides high thermal management flexibility without requiring permanently separate dedicated loops for each function, thereby avoiding the complexity increase that would result from fixed separate heating/cooling loops.
3Device complexity
If integrated components are used, then device complexity is reduced, but thermal management capability may be limited
Solution Approach 1:
The patent applies segmentation by dividing the thermal management system into distinct functional modules: a water-cooled condenser, a battery chiller with third and fourth heat exchange pipes, a switching device, and a passenger compartment climate control system. The water-cooled condenser is further segmented with separate heat exchange paths (second heat exchange pipe for cooling mode, first heat exchange pipe for heating mode). This modular segmentation allows the integrated system to maintain full thermal management capability while reducing overall complexity, as each module can operate independently or in combination based on the switching device's configuration.
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 achieves efficient and flexible temperature control of multiple components in an electric vehicle, reducing costs and space requirements while improving user experience by allowing independent or simultaneous heating/cooling of the passenger compartment, battery, and electrical driver.
Implementation Method 1
a compressor (201), a water-cooled condenser (202)... an output end of the compressor is connected to an input end of the second heat exchange pipe
Implementation Method 2
a water-cooled condenser (202) including a first heat exchange pipe (2021) and a second heat exchange pipe (2022)... an output end of the compressor is connected to an input end of the second heat exchange pipe
Implementation Method 3
a water-cooled condenser (202)... output end of the second heat exchange pipe is separately connected to an input end of an evaporator and an input end of a third heat exchange pipe
Implementation Method 4
an output end of the compressor is connected to an input end of the second heat exchange pipe, and an output end of the second heat exchange pipe is separately connected to an input end of an evaporator and an input end of a third heat exchange pipe
Implementation Method 5
a battery chiller (203) including a third heat exchange pipe (2031) and a fourth heat exchange pipe (2032)... an output end of the second heat exchange pipe is separately connected to an input end of an evaporator and an input end of a third heat exchange pipe
Implementation Method 6
a first water pump (211), a second water pump (212), and a third water pump (213)... a first water pump, a second water pump, and a third water pump
Data Source
AI summary
A thermal management system includes a compressor, a water-cooled condenser, a battery chiller, a valve body assembly, a first water pump, a second water pump, and a third water pump that are disposed in a centralized manner. The thermal management system can separately form a passenger compartment cooling loop, a passenger compartment heating loop, a battery cooling loop, a battery heating loop, and an electrical driver cooling loop, and any one or more of the passenger compartment, the battery, and the electrical driver can be cooled or heated.