Cylindrical Battery Terminal with Keyway Plug

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Solution Overview

Problem

Existing automotive battery connection systems require tools for replacement and recharging, are complex, and can lead to mistakes in cable identification, potentially causing damage or injury.

Innovation Solution

A quick-connect battery connection system featuring a cylindrical battery case with keyway partitions and a plug with channel partitions, allowing tool-free engagement of cables with conical posts and sockets, maintaining the standard two-post design while ensuring secure and efficient energy transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional battery connection systems are used, then reliable electrical connection is achieved, but tool replacement is required and time is consumed

Engineering Contradiction:
Improvetool-free connectionVSAvoidconnection system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The plug is inserted into a recess in the battery terminal, with the plug containing sockets that receive the battery posts. This nested structure allows the connection components to be housed within each other, enabling tool-free connection while maintaining a compact design that does not significantly increase overall system complexity

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The plug acts as an intermediary component between the battery terminal and the cable connector. The plug includes posts that engage with sockets in the terminal, and cables connect to the plug, creating an intermediate connection layer that simplifies the overall connection process and eliminates the need for tools

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If quick-connect systems are implemented, then tool-free connection is achieved, but complete re-design of battery system is required

Engineering Contradiction:
Improvetool-free connectionVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The battery case serves multiple functions: it acts as the terminal housing, provides the recess for the plug, and contains the keyway partitions for alignment. This multi-functionality allows the existing battery case structure to be utilized while adding quick-connect capabilities, avoiding complete re-design

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

Solution Approach 2:

The connection system is divided into separate modular components: the battery terminal with recess, the plug with posts and sockets, and the cable connector. This segmentation allows each component to be manufactured independently using existing processes, reducing manufacturing complexity while enabling tool-free connection

Inventive Principle:
Principle #1Segmentation

3Reliability

If sequential disconnection is followed, then short-circuiting is avoided, but time is consumed and risk of error remains

Engineering Contradiction:
Improveshort-circuit preventionVSAvoidreplacement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The keyway partitions in the battery case and corresponding channel partitions in the plug create a mechanical alignment system that physically guides the plug into the correct position. This converts the potential harm of misalignment or incorrect connection into a beneficial self-aligning mechanism, ensuring proper connection order and preventing short-circuits while speeding up the process

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The plug and terminal design includes self-aligning features through the keyway and channel partitions that automatically guide the components into proper alignment during insertion. This self-service alignment mechanism eliminates the need for manual sequencing or complex alignment procedures, preventing short-circuits while reducing replacement time

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9147871B2Automotive battery connection system
Publication Date: 2015.09.29 KOWALSKI GERALD A
  • US9147871B2 patent drawing
  • US9147871B2 patent drawing
  • US9147871B2 patent drawing

AI summary

An automotive battery connection system, which includes a substantially cylindrical battery case acting as a terminal for an automotive battery. The battery case includes partitions defining a keyway for cables and a center partition dividing the battery case into two case pockets. A battery positive post is situated within one of the case pockets. A battery negative post is situated in the other of the case pockets. A substantially cylindrical plug is adapted to seat on the partitions of the battery case. The plug comprises a pair of sockets defined within its base, each socket defined within one of the plug pockets shaped identical to the battery positive post and the battery negative post and sized to have the battery positive post and the battery negative post securely seat therein. Therefore, cables terminating within the base of the plug are in conductive communication with the sockets.