High-Voltage Box Terminal Integration for Faster Battery Assembly

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Solution Overview

Problem

The assembly process of high-voltage boxes and batteries is complex and labor-intensive due to the need for secondary mating between conductive connection parts and terminals, which hinders efficiency and increases assembly time.

Innovation Solution

The high-voltage box integrates terminals and conductive connection parts, eliminating the need for secondary mating, and incorporates snap-fit mechanisms and injection molding for enhanced stability and simplicity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conductive connection parts and terminals are assembled separately with secondary mating, then connection flexibility is improved, but assembly complexity and time increase

Engineering Contradiction:
Improveconnection flexibilityVSAvoidassembly complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the conductive connection part and terminal into a single integrally formed component. The terminal includes a conductive connection part, connection portion, and terminal body that are all formed as one piece through injection molding, eliminating the need for secondary mating operations and reducing assembly complexity while maintaining connection flexibility.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If conductive connection parts and terminals are assembled separately, then manufacturing flexibility is improved, but assembly time and labor increase

Engineering Contradiction:
Improvemanufacturing flexibilityVSAvoidassembly rate
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The conductive connection part and terminal are combined into a single integrally formed component manufactured through injection molding. This maintains manufacturing flexibility while significantly improving assembly rate by eliminating multiple assembly steps and reducing labor requirements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrally formed terminal structure serves multiple functions: it provides electrical connection, mechanical connection, and structural support all in one component. This multi-functionality improves productivity by reducing the number of parts that need to be assembled while maintaining manufacturing flexibility.

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

3Adaptability or versatility

If multiple separate components are used in the high-voltage box, then component functionality is improved, but assembly process complexity increases

Engineering Contradiction:
Improvecomponent functionalityVSAvoidassembly process complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functional elements (conductive connection part, connection portion, terminal body) into a single integrally formed terminal component. This maintains all necessary functionalities while simplifying the assembly process by reducing the number of parts and elimination of secondary mating operations.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4685979A1High-voltage box, battery, and electrical device
Publication Date: 2026.01.28 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • EP4685979A1 patent drawingFigure 1~2
  • EP4685979A1 patent drawingFigure 3
  • EP4685979A1 patent drawingFigure 4

AI summary

A high-voltage box (40), a battery (10), and an electrical device. The high-voltage box (40) comprises: a first housing (30), having a wall portion (110) and an accommodating space (120) enclosed by the wall portion (110), wherein the accommodating space (120) is used for accommodating an electrical device (50); an electrical connector (200), disposed in the first housing (30), the electrical connector (200) comprising a plurality of terminals (210) and a conductive connection portion (220), wherein the conductive connection portion (220) is connected to at least one terminal (210) and is integrally formed with the terminal (210), and the terminals (210) are used for connecting the electrical device (50). The solution simplifies the process of assembling high-voltage boxes, improving the efficiency of assembling the high-voltage boxes, thereby accelerating battery assembling.