Battery Pack Connector Assembly With Insulation Base for Metal Boxes

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Solution Overview

Problem

Existing battery pack connectors embedded in metal boxes face complex structures and poor adaptability issues, limiting their application to battery packs with metal material boxes.

Innovation Solution

A battery pack connector featuring an insulation base with a through hole and a connection portion embedded within, allowing both ends to extend out, ensuring simple structure and strong adaptability by using insulation materials and limiting mechanisms to secure the connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a high-voltage connector assembly is used for metal box battery packs, then the connector can be applied to metal material boxes, but the structure becomes complex and adaptability deteriorates

Engineering Contradiction:
Improveadaptability to metal box battery packsVSAvoidconnector structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connector is divided into separate components: an insulation base and a connection portion. The connection portion is embedded in the insulation base, creating a modular structure that simplifies the overall design while maintaining functionality for metal box battery packs

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An insulation base is introduced as an intermediary component between the metal box and the connection portion. This insulation base serves as a mediator that provides both electrical insulation and structural support, enabling the connector to work with metal boxes without direct metal-to-metal contact

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If a connector is embedded in a plastic upper cover for insulation, then the structure is simple, but it cannot be applied to battery packs with metal material boxes

Engineering Contradiction:
Improveconnector structure simplicityVSAvoidapplicability to metal box battery packs
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The insulation base serves multiple functions simultaneously: it provides electrical insulation, structural support for embedding the connection portion, and compatibility with both plastic and metal box types. This multi-functionality makes the connector universally applicable across different battery pack designs

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

Data Source

PatentEP4579934A1Battery pack connector and battery pack
Publication Date: 2025.07.02 EVE ENERGY CO LTD
  • EP4579934A1 patent drawingFigure 1
  • EP4579934A1 patent drawingFigure 2
  • EP4579934A1 patent drawingFigure 3

AI summary

A battery pack connector and a battery pack are provided. The connector may be configured to electrically connect a battery module inside the battery pack with an electric device outside the battery pack and include an insulation base (100) and a connection portion (200). The insulation base (100) may be provided with a first through hole (110). The connection portion (200) may be embedded in the first through hole (110) and fixed to the insulation base (100), and both ends of the connection portion (200) extend out of the insulation base (100).