Battery Heat Transfer Element for Cooling and Vent Gas Discharge
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Solution Overview
Problem
Existing battery systems in electric vehicles require complex and inefficient cooling and venting systems that can lead to undesirable gas discharge into the vehicle interior, limiting positional flexibility and posing safety risks.
Innovation Solution
A heat transfer element with a channel for coolant flow and a connection device that adjusts between blocked and flow-through positions, allowing safe and efficient discharge of venting gases outside the vehicle while maintaining separate coolant and air conditioning systems, enhancing operational efficiency and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If separate conduit elements (pipe, coolant supply line, and coolant outlet) are used for battery cooling, then cooling function is achieved, but device complexity increases
Solution Approach 1:
The patent combines the coolant supply line and coolant outlet into a single conduit element (channel element 15), eliminating the need for separate pipes and reducing system complexity while maintaining effective cooling functionality
2Volume of moving object
If coolant lines are located inside the pipe, then space is saved, but positional arrangement flexibility is reduced
Solution Approach 1:
The conduit element serves multiple functions: it acts as both the cooling channel and the gas discharge path. This multi-functionality allows flexible positional arrangement during vehicle manufacture without requiring separate dedicated pipes for each function
3Object-generated harmful factors
If gas discharge opening is provided in battery housing, then venting gases can be discharged, but gas may enter vehicle interior
Solution Approach 1:
The conduit element acts as an intermediary pathway that directs venting gases from the battery housing through the heat transfer body to a discharge location outside the vehicle interior, preventing harmful gas accumulation while enabling safe venting
4Temperature
If connection device allows fluid flow between accumulator chamber and channel element, then cooling efficiency improves, but risk of gas contamination increases
Solution Approach 1:
The connection device (valve assembly 18) dynamically controls fluid flow between the accumulator chamber and channel element, allowing coolant circulation for cooling while preventing backflow and contamination from venting gases
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 solution enables safe and efficient temperature control and venting of gases outside the vehicle, reducing complexity, mass, and emissions, while preventing gas entry into the vehicle interior, thus ensuring high fuel efficiency and safety.
Implementation Method 1
a heat transfer element (2), which, together with the accumulator unit (4), forms a battery assembly (1), wherein the heat transfer body (2) has a wall structure (10) in which a channel element (15) through which a coolant (14) flows is formed
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a storage-battery assembly (1) for a motor vehicle, wherein a storage-battery unit (4) and a heat transfer element (2) are disposed in a common storage-battery chamber (5) and adjoin each other. The heat transfer element (2) has a wall structure (10), in which a channel element (15) is formed, through which channel element a coolant (14) can flow. A predefined connecting device (3) is formed on the wall structure (10), which connecting device can be moved from a blocking position, in which the connecting device (3) blocks the flow of a fluid from the storage-battery chamber (5) into the channel element (15), into a flow position, in which the connecting device (3) allows the fluid to flow from the storage-battery chamber (5) into the channel element (15). The invention also relates to a heat transfer element (2) for the storage-battery assembly (1).