Foldable Battery Frame Assembly for Compact Module Grouping

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Solution Overview

Problem

Existing battery frames are non-foldable and lack diversity in design, limiting their applications and usability.

Innovation Solution

A foldable battery frame design featuring multiple interconnected frames that can be rotated and locked, allowing for both unfolded and folded states, with a bendable electrical connecting plate to simplify the grouping process and reduce space occupation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a non-foldable battery frame is used, then the structure is simple and easy to manufacture, but the application scope is limited and design diversity is reduced

Engineering Contradiction:
Improveapplication scopeVSAvoidframe structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The battery frame is divided into multiple independent frame units that can be connected through rotation structures. Each frame unit includes a pallet and side plates, and they are sequentially connected along the first direction through rotatable connections, enabling the frame to be folded or unfolded while maintaining structural integrity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The battery frame incorporates rotation structures between adjacent frame units that allow the frame to dynamically change between unfolded and folded states. This dynamic capability enables the same frame structure to adapt to different application scenarios, increasing versatility without permanently increasing complexity.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If multiple battery modules are grouped together, then the energy density increases, but the space occupation and grouping complexity increase

Engineering Contradiction:
Improvebattery module quantityVSAvoidspace occupation
Core Design Contradiction:
Quantity of substanceVSVolume of moving object

Solution Approach 1:

Multiple frame units are nested or stacked along the second direction when in the folded state, allowing battery modules to be arranged in a compact configuration. This nesting approach enables high energy density by accommodating multiple modules while minimizing the overall volume occupied by the battery group.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If the battery frame is made foldable, then the design diversity and flexibility increase, but the manufacturing complexity increases

Engineering Contradiction:
Improvedesign diversityVSAvoidframe manufacturing
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The foldable battery frame is segmented into standardized frame units that can be manufactured independently and then assembled through rotation structures. This segmentation allows for simplified manufacturing of individual units while achieving complex folded configurations through assembly, reducing overall manufacturing complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP3934016B1Battery frame, battery module, battery pack and method for assembling battery module
Publication Date: 2023.08.23 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

AI summary

Embodiments of this application provide a battery frame, a battery group, a battery pack, and a method for assembling a battery group. The battery frame according to the embodiments of this application includes at least two frames. The at least two frames are sequentially connected along a first direction. Among the at least two frames, any two adjacent frames are rotatably connected to each other, so that the battery frame is foldable. The foldability of the battery frame according to the embodiments of this application diversifies the battery frame effectively.