Modular Battery Pack with Inter-Module Cooling Assembly

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Solution Overview

Problem

The existing battery pack manufacturing processes require different production lines and equipment for various types of battery packs, leading to increased costs due to the need for matched cooling assemblies for different numbers of battery cells.

Innovation Solution

A battery pack design that includes at least two splicable battery modules and a cooling assembly sandwiched between them, allowing for easy adjustment of the number of battery cells and reducing production costs by enabling the use of a single configuration for multiple battery pack types.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different types of battery packs use different numbers of battery cells, then the performance parameters (voltage, current, capacity) can be customized, but the cooling assembly must be changed accordingly, increasing manufacturing cost and complexity

Engineering Contradiction:
Improvecustomization of performance parametersVSAvoidmatching cooling assembly for different cell configurations
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cooling assembly is designed with a universal structure that can accommodate different numbers of battery cells through adjustable mounting positions. The support structure includes multiple mounting locations for the cooling assembly, allowing a single cooling assembly design to serve multiple battery pack configurations without requiring custom cooling solutions for each cell count.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The battery pack is divided into modular battery modules, each with its own support structure. The cooling assembly can be selectively installed between different modules, and the modular design allows the cooling system to be adapted to various configurations by simply repositioning components rather than redesigning the entire cooling assembly.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If different types of battery packs require different production lines and equipment, then specific performance requirements can be met, but the manufacturing cost increases

Engineering Contradiction:
Improvemeeting specific performance requirementsVSAvoidmanufacturing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The support structure and cooling assembly are designed as universal components that can be used across different battery pack types. The support includes standardized mounting features and the cooling assembly has adjustable positioning capabilities, allowing a single production line to manufacture multiple battery pack configurations using the same core components and assembly processes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The design incorporates adjustable and reconfigurable elements in the support structure and cooling assembly mounting system. This dynamic design allows the same production equipment to accommodate different battery pack types by adjusting component positions rather than requiring dedicated production lines for each configuration.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the cooling assembly is fixed for each battery pack type, then heat dissipation performance can be optimized, but the assembly efficiency decreases when producing different battery pack types

Engineering Contradiction:
Improveheat dissipation performanceVSAvoidassembly efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The cooling assembly is segmented into modular components that can be independently positioned and installed between battery modules. This segmentation allows the cooling system to maintain optimized heat dissipation for different configurations while simplifying the assembly process, as workers can install or reposition cooling components without retooling the entire assembly line.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure includes pre-designed mounting locations and guiding features for the cooling assembly. These preliminary structural preparations enable quick installation and positioning of cooling components during assembly, maintaining optimized heat dissipation performance while significantly improving assembly efficiency when producing different battery pack types.

Inventive Principle:
Principle #10Preliminary action

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 allows for the convenient production of battery packs with different numbers of battery cells while reducing costs and improving assembly efficiency, maintaining consistent heat dissipation and safety performance.

Implementation Method 1

the at least one cooling assembly is sandwiched between the two adjacent battery modules and is in contact with the battery cells located on opposite sides of the at least one cooling assembly

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS20230216103A1Battery pack and energy storage device
Publication Date: 2023.07.06 HITHIUM TECH HK LTD
  • US20230216103A1 patent drawing
  • US20230216103A1 patent drawing
  • US20230216103A1 patent drawing

AI summary

The present utility model discloses a battery pack and an energy storage device. The battery pack includes at least two battery modules and at least one cooling assembly. Each battery module includes a support having a splicing portion and a plurality of battery cells mounted in the support, and two adjacent battery modules are connected to each other by two splicing portions. The at least one cooling assembly is sandwiched between the two adjacent battery modules and is in contact with the battery cells located on opposite sides of the at least one cooling assembly. According to the battery pack, the battery modules and the cooling assembly can be spliced as needed, then battery packs with different numbers of battery cells can be conveniently achieved, and the cost of the battery pack is reduced.