Battery Housing with Segmented Temperature Control Chambers
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Solution Overview
Problem
Existing battery modules face challenges in efficiently managing temperature across various components due to the generation of heat during discharge or charge cycles, which can lead to increased aging and degradation, particularly in larger capacities, and require effective temperature control systems to maintain optimal operating conditions.
Innovation Solution
A battery design featuring two temperature control chambers allows for independent temperature management of battery cells and power electronics components using a fluid temperature control system, with components that convey temperature control fluid arranged outside the inner chamber to prevent leakage and enhance safety, and die-cast housings to eliminate additional cooling elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single temperature control system is used for battery cells and power electronics, then the device complexity is reduced, but the temperature control precision for each component deteriorates
Solution Approach 1:
The temperature control system is segmented into two independent chambers: a first temperature control chamber for battery cells and a second temperature control chamber for power electronics. Each chamber has its own temperature control structure and can be controlled independently, allowing precise temperature management for each component type while maintaining manageable system complexity through modular design.
2Productivity
If temperature control components are arranged inside the inner chamber, then the thermal paths are shorter and cooling efficiency is improved, but the safety and reliability deteriorate due to potential fluid leakage onto battery cells
Solution Approach 1:
The temperature control components (second temperature control structure and associated fluid pathways) are extracted from the inner chamber and placed in an outer chamber. This separation prevents potential leakage of temperature control fluid from reaching the battery cells, thereby maintaining safety and reliability while still achieving efficient cooling through dedicated thermal pathways.
Solution Approach 2:
A housing structure with distinct chambers acts as an intermediary barrier between the temperature control fluid and the battery cells. The first chamber houses battery cells with their own temperature control, while the second chamber houses power electronics cooling components, physically isolating the fluid pathways from the battery cells to eliminate leakage risks.
3Quantity of substance
If battery module capacity is increased to meet energy requirements, then the energy storage capability is improved, but the heat generation and temperature control requirements worsen
Solution Approach 1:
The temperature control system is segmented into two independent chambers: a first temperature control chamber for battery cells and a second temperature control chamber for power electronics. Each chamber has its own temperature control structure and can be controlled independently, allowing precise temperature management for each component type while managing heat generation from high-capacity batteries.
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 design enhances safety and reliability by preventing temperature control fluid from reaching the battery cells in case of leakage, allows for efficient cooling with shorter thermal paths, and enables independent temperature control of battery cells and electronic components, optimizing their operating range and reducing aging.
Implementation Method 1
a first temperature control structure (101) is arranged on a first housing element (2)... a second temperature control structure (102) is arranged on a second housing element (3)... through which temperature control fluid may flow
Implementation Method 2
The first housing element (2) and the second housing element (3) jointly form an inner chamber (5) for receiving a battery module (6)... through which temperature control fluid may flow
Data Source
AI summary
A battery comprising a first housing element (2) and a second housing element (3), which jointly form an inner chamber (5) for receiving a battery module (6), wherein a plurality of battery cells (7) of the battery module (6) is arranged in the inner chamber (5), said battery cells being connected to one another, and wherein furthermore a first element (61) of a battery control system is arranged in the inner chamber (5), and the first housing element (2) forms a first temperature control structure (101) on a face that is remote from the inner chamber (5), and the second housing element (2) is furthermore connected to a third housing element (4) on a face that is remote from the inner chamber (5), wherein the third housing element (4) receives a second element (62) of the battery control system and forms a second temperature control structure (102).