Battery Liquid Cooling Redundancy With Multiport Valve Control
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Solution Overview
Problem
Conventional temperature control methods for battery energy storage systems, such as forced air cooling, are inadequate and have reliability issues, particularly in maintaining optimal storage temperatures for battery systems in electric vehicles and other applications.
Innovation Solution
A temperature control apparatus and system that utilizes a liquid dispensing device with a liquid storage unit, multiple liquid supply devices, and a controller to regulate the temperature of battery systems by injecting temperature-controlled liquid. This system includes multiport valves and a temperature regulating device to ensure reliable and stable temperature control, even if one of the liquid supply devices fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional forced air cooling is used for battery temperature regulation, then the system structure is simple, but the temperature control effectiveness and reliability are insufficient
Solution Approach 1:
The patent applies hydraulic cooling by using liquid cooling channels instead of air cooling. The liquid cooling system circulates coolant through channels in contact with battery surfaces, providing more effective heat removal and higher reliability for temperature control in battery energy storage systems.
Solution Approach 2:
The patent segments the cooling system into multiple independent liquid supply devices, each capable of supplying coolant to specific battery modules. This segmentation allows localized cooling control and maintains system reliability even if one supply device fails, while managing overall system complexity through modular design.
2Reliability
If multiple liquid supply devices are used to ensure redundant temperature control, then the reliability improves, but the device complexity increases
Solution Approach 1:
The patent designs liquid supply devices with multi-functionality, where each device can serve multiple purposes: normal cooling operation, standby redundancy, and fault compensation. The controller coordinates these devices to perform different functions based on system conditions, reducing the need for entirely separate redundant systems.
Solution Approach 2:
The patent implements prior cushioning by pre-configuring standby liquid supply devices that remain ready to take over if primary devices fail. The controller monitors system status and can switch to standby devices before actual failures occur, ensuring continuous temperature control without requiring complex real-time decision systems.
3Manufacturing precision
If liquid cooling system with multiple valves is implemented, then the temperature regulation precision improves, but the control complexity increases
Solution Approach 1:
The patent employs dynamic valve control where the controller adjusts valve opening degrees and switching timing based on real-time temperature feedback and system conditions. This dynamic adjustment enables precise temperature regulation while managing control complexity through adaptive algorithms that optimize valve operations based on current battery thermal states.
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 proposed solution effectively regulates the temperature of battery systems, enhancing their reliability and extending their lifespan by ensuring that each battery system maintains a consistent temperature, even in the event of a faulty component.
Implementation Method 1
at least one liquid storage device, configured to store liquid
Implementation Method 2
An input of each liquid supply device is connected to the at least one liquid storage device through a first multiport valve to obtain cooling liquid
Implementation Method 3
The temperature regulating device is configured to connect an output of the second multiport valve, regulate a temperature of liquid injected by each liquid storage device
Implementation Method 4
regulate a temperature of liquid injected by each liquid storage device
Data Source
Figure 1~2A
Figure 2B
Figure 3A(a)~3A(c)
AI summary
A temperature control apparatus and a temperature control system are provided. In the apparatus, a liquid dispensing device includes at least one liquid storage device for storing liquid, at least two liquid supply devices, and a controller. Each liquid supply device is connected to the at least one liquid storage device through a first multiport valve to obtain liquid, and is connected to a temperature regulating device through a second multiport valve. The controller is configured to control the first multiport valve and the second multiport valve that are connected to the controller to be conducted or not to be conducted. When the first multiport valve and the second multiport valve are conducted, each liquid supply device outputs the obtained liquid to the temperature regulating device. The temperature regulating device regulates a temperature of the liquid injected by each liquid storage device, and then supplies the liquid to at least one battery system. The temperature control apparatus can supply temperature-regulated liquid to each battery system. If a part of a plurality of liquid supply devices are faulty, the temperature control apparatus can still supply the temperature-regulated liquid to each battery system, so that temperature control of each battery system is more reliable.