Conductive Temperature Control Element for Battery Pack Cooling
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Solution Overview
Problem
Existing battery pack designs face challenges in efficiently dissipating heat while maintaining a compact structure and avoiding electrical short circuits, especially when used in high-current applications like electric vehicles.
Innovation Solution
The use of temperature control elements made of electrically conductive materials with open cross sections, integrated into a common carrier with non-conductive channels, allows for direct heat transfer to a flowing medium, ensuring rapid and efficient cooling without electrical short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air flow is used to cool the battery pack through open channels, then heat dissipation is achieved, but effective cooling can only be achieved with difficulty and the structure becomes less compact
Solution Approach 1:
The patent replaces air cooling with liquid coolant circulation through closed channels. The coolant flows through channels formed in the carrier body, providing efficient heat transfer from the contact elements to the cooling medium, achieving effective cooling without complex open channel structures
Solution Approach 2:
The patent changes the cooling parameter from gas (air) to liquid (coolant), which fundamentally improves heat transfer efficiency. The liquid coolant provides better thermal contact and higher heat capacity, enabling effective cooling in a more compact configuration
2Reliability
If electrically conductive materials are used for temperature control elements, then good electrical connection is achieved, but electrical short circuits between adjacent conductors must be avoided
Solution Approach 1:
The patent introduces an electrically insulating carrier body as an intermediary between the electrically conductive contact elements. The carrier forms non-conductive channels that guide the coolant while electrically isolating adjacent contact elements, preventing short circuits while maintaining good thermal and electrical contact where needed
Solution Approach 2:
The patent segments the cooling channels into electrically isolated paths within the insulating carrier body. Each channel is independently enclosed, preventing electrical connection between adjacent conductive elements while allowing thermal management of multiple battery cells
3Volume of moving object
If a compact structure is achieved with integrated temperature control elements, then space is saved, but heat dissipation effectiveness must be maintained
Solution Approach 1:
The patent merges the structural carrier body with the cooling channel system. The carrier body simultaneously provides mechanical support, electrical insulation, and fluid guidance for coolant flow. This integration eliminates separate cooling components, achieving compactness while maintaining effective heat dissipation through direct thermal contact
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
This solution enables effective heat dissipation in a compact and structurally efficient manner, preventing damage from high temperatures and ensuring reliable operation under varying conditions.
Implementation Method 1
the temperature control element is in heat-transferring connection with a flowing medium, via which heat can be supplied to the temperature control element or heat can also be removed from the temperature control element
Implementation Method 2
As a result, the temperature control element is in heat-transferring connection with a flowing medium, via which heat can be supplied to the temperature control element or heat can also be removed from the temperature control element
Data Source
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Figure 5~6
AI summary
The invention relates to a battery pack comprising a plurality of individual flat battery cells (6), each having a cathode arrester (17) and an anode arrester (18). Two arresters (17, 18) of adjacent flat battery cells (5) are electrically connected to each other. For heat dissipation, the arresters (17, 18) are in contact with a temperature control element (30), which is made of an electrically conductive material. The temperature control element (30) acts as a contact bridge, forming the electrical connection between the arresters (17, 18) and is in heat-transferring contact with a flowing medium.