Battery Pack Thermal Management Component Separation

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Solution Overview

Problem

Existing thermal management components in battery packs have a poor temperature regulation effect due to the impact of the box and external environment on the battery unit, affecting the performance and lifespan of the battery cells.

Innovation Solution

The thermal management component is mounted between the battery unit and the box, creating a distance greater than zero to reduce the impact of the external environment, and is connected to the frame and box through a connecting element, with a temperature-regulating channel and sealed connecting pipes to enhance temperature regulation and sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If the thermal management component is placed directly against the box bottom wall, then the structural support is maximized, but the temperature regulation effect deteriorates due to external environmental impact

Engineering Contradiction:
Improvestructural supportVSAvoidtemperature regulation effect
Core Design Contradiction:
StrengthVSTemperature

Solution Approach 1:

The patent introduces a heat insulation component as an intermediary between the thermal management component and the box bottom wall. This mediator blocks the direct thermal pathway to the external environment while maintaining structural support, thus resolving the contradiction between structural strength and temperature regulation effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the battery unit is placed close to the box bottom wall, then the space utilization is maximized, but the temperature regulation effect deteriorates

Engineering Contradiction:
Improvespace utilizationVSAvoidtemperature regulation effect
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

The heat insulation component serves as a mediator that creates a thermal barrier between the battery unit and the external environment. This allows the battery unit to be positioned optimally for space utilization while the intermediary component ensures effective temperature regulation by blocking harmful thermal pathways.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If the box and external environment have direct contact, then the structural integrity is maintained, but the battery unit is adversely affected by external temperature

Engineering Contradiction:
Improvestructural integrityVSAvoidexternal temperature impact
Core Design Contradiction:
Stability of the object's compositionVSObject-affected harmful factors

Solution Approach 1:

The heat insulation component acts as a protective intermediary between the box structure and the external environment. It maintains the structural integrity of the box while blocking the transmission of harmful external temperature variations to the battery unit inside.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 arrangement improves the temperature regulation efficiency of the thermal management component, reducing external influences and enhancing the working performance and service life of the battery pack.

Implementation Method 1

The thermal management component is configured to regulate the temperature of the battery cell

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

The thermal management component is provided with an inlet channel, a temperature-regulating channel, and an outlet channel connected in series

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP4700910A1Battery pack, energy storage device and electrical apparatus
Publication Date: 2026.02.25 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • EP4700910A1 patent drawingFigure 1~2
  • EP4700910A1 patent drawingFigure 3
  • EP4700910A1 patent drawingFigure 4

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.