Battery Pack Thermal Management Layout for Cell Temperature Isolation
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Solution Overview
Problem
Existing battery packs face challenges in effectively regulating the temperature of battery cells due to the impact of the box and external environment, which affects the performance and longevity of the thermal management component.
Innovation Solution
The battery pack design includes a thermal management component that separates the battery unit from the box, maintaining a distance greater than zero, and incorporates a connecting element to secure the frame, thermal management component, and box together, with a temperature-regulating channel and sealed connecting pipes to enhance temperature regulation and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the battery unit is directly mounted on the bottom wall of the box, then the structural complexity is reduced, but the temperature regulation effect of the thermal management component deteriorates due to external environmental impact
Solution Approach 1:
The patent introduces a thermal management component as an intermediary between the battery unit and the box bottom wall. This mediator not only provides thermal regulation functionality but also creates thermal isolation from the external environment, resolving the contradiction between structural simplicity and temperature regulation effectiveness
Solution Approach 2:
The thermal management component serves multiple functions simultaneously: it acts as a thermal regulation device, a structural support element, and an isolator from external environmental impact. This multi-functionality allows the system to maintain simple structure while achieving effective temperature control
2Ease of manufacture
If the thermal management component is in direct contact with the box bottom wall, then the mounting is simplified, but the temperature regulation efficiency deteriorates due to heat loss to the environment
Solution Approach 1:
The battery unit serves as an intermediary element that creates thermal isolation between the thermal management component and the box bottom wall. This intermediary positioning prevents direct heat loss to the environment while maintaining manageable mounting complexity through standardized connection interfaces
3Temperature
If the battery unit is separated from the box by a distance, then the temperature regulation effect is improved, but the structural stability and load-bearing capability deteriorate
Solution Approach 1:
The thermal management component acts as a mediator that provides both thermal management functionality and structural support. It bridges the gap created by separating the battery unit from the box, maintaining load-bearing capability while enabling effective temperature regulation through the created distance
Solution Approach 2:
The thermal management component performs dual functions: thermal regulation through fluid channels and structural support through its mounting framework. This multi-functionality allows the system to achieve both temperature control and structural stability without compromise
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 improves the temperature regulation efficiency of the thermal management component, reduces external environmental impact, and enhances the load-bearing capability and sealing reliability of the battery pack, thereby improving performance and extending service life.
Implementation Method 1
The thermal management component is configured to regulate the temperature of the battery cell
Implementation Method 2
The thermal management component includes a temperature-regulating channel
Data Source
AI summary
Embodiments of the present disclosure provide a battery pack, an energy storage device, and an electrical apparatus, which belong to the field of battery technologies. The battery pack includes a box, a thermal management component, and a battery unit. The thermal management component is mounted in the box. The thermal management component separates the battery unit from a bottom wall of the box. The battery unit includes a battery cell and a frame for mounting the battery cell. The thermal management component is configured to regulate the temperature of the battery cell. The battery cell and the frame are both arranged on the thermal management component.