Terminal Bending Unit with Segmented Receiving Slots

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Solution Overview

Problem

Manual bending of conductive terminals in electrical connectors is inefficient, inaccurate, and prone to surface scratches, limiting the ability to bend multiple terminals simultaneously and ensuring precise positioning.

Innovation Solution

A terminal bending unit with a pivotally mounted bending tool and driving mechanisms that rotate the tool to bend multiple terminals simultaneously, featuring receiving slots for precise positioning and a resilient reset mechanism to maintain tool accuracy and prevent surface damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual bending of conductive terminals is performed, then the terminals can be bent one by one, but the bending efficiency is very limited and only one terminal can be bent at a time

Engineering Contradiction:
Improvebending efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The bending tool is divided into multiple receiving slots (first receiving slot, second receiving slot, etc.) that can simultaneously hold multiple terminals. Each slot is independently structured to receive and position a terminal, enabling parallel processing of multiple terminals in one bending operation, thus significantly improving productivity without requiring multiple separate bending devices.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent combines multiple terminal receiving slots into a single bending tool structure that is pivotally mounted on the frame. This merged structure allows multiple terminals to be bent simultaneously by a single rotating motion of the bending tool, eliminating the need for multiple separate bending operations and improving efficiency.

Inventive Principle:
Principle #5Merging (Combining)

2Manufacturing precision

If manual bending of conductive terminals is performed, then the terminals can be bent, but the bending accuracy is difficult to ensure with large errors in the bended position

Engineering Contradiction:
Improvebending accuracyVSAvoidease of operation
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The receiving slots are pre-configured with precise geometric features (side walls, bottom surfaces) that automatically position the terminals in correct orientations before bending. This preliminary positioning ensures that when the bending tool rotates, each terminal is bent at the accurate predetermined position and angle, eliminating positioning errors without requiring complex adjustment operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The bending tool's rotational movement transforms the bending process from manual positioning to a controlled rotational parameter. By rotating the bending tool to a predetermined angle, the bending position and angle are precisely controlled through rotational parameter adjustment, ensuring consistent bending accuracy across all terminals.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If manual bending with tools such as pliers is performed, then the terminals can be bent, but scratches are created on the surface of the conductive terminals degrading the quality

Engineering Contradiction:
Improvebending efficiencyVSAvoidsurface scratches
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The receiving slots act as an intermediary structure between the bending tool and the terminals. The slots provide a controlled interface with smooth geometric features (side walls, bottom surfaces) that guide and support the terminals during bending. This intermediary structure prevents direct contact between rough manual tools and the terminal surfaces, eliminating scratches while maintaining bending efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical gripping action of pliers with a rotational pressing mechanism. The bending tool rotates and presses terminals against the receiving slots, substituting the claw-like gripping mechanism of pliers with a smooth rotational pressing action. This substitution eliminates the scratching caused by plier jaws while maintaining the bending function.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

4Productivity

If a row of conductive terminals cannot be bent simultaneously, then manual bending can be performed, but the bending efficiency is very limited

Engineering Contradiction:
Improvebending efficiencyVSAvoidnumber of terminals bent simultaneously
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The bending tool is segmented into multiple receiving slots (first receiving slot, second receiving slot, and so on) that can each hold a terminal. This segmentation allows the tool to process multiple terminals in parallel during a single rotational operation, increasing the quantity of terminals bent simultaneously from one to multiple, thereby significantly improving productivity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bending tool is designed with multi-functionality to handle multiple terminals simultaneously. The same bending tool structure with multiple receiving slots can process a row of terminals in one operation, making the tool universal for batch bending operations rather than requiring separate operations for each terminal.

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

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

Enhances bending efficiency and accuracy, allowing for simultaneous bending of multiple terminals without surface scratches, ensuring precise positioning and maintaining terminal quality.

Implementation Method 1

a linear actuator which is fixedly mounted on the frame and is adapted to urge the slider to slide on the frame

Methodology Applied
Scientific EffectLinear actuator: Linear Motor

Implementation Method 2

the resilient reset mechanism comprises a spring element

Methodology Applied
Scientific EffectSpring element: Spring

Data Source

PatentEP3258551B1Terminal bending unit and terminal bending apparatus
Publication Date: 2022.02.02 TYCO ELECTRONICS (SHANGHAI) CO LTD
  • EP3258551B1 patent drawingFigure 1
  • EP3258551B1 patent drawingFigure 2
  • EP3258551B1 patent drawingFigure 3

AI summary

The present disclosure discloses a terminal bending unit including: a frame and a bending tool pivotally mounted on the frame. A row of receiving slots is formed in a bottom surface of the bending tool, and terminals to be bent are adapted to be received and positioned in the corresponding receiving slots. The terminals received in the corresponding receiving slots are bent under press of the bending tool when the bending tool is rotated. It is only necessary to turn the bending tool to achieve bending of the terminals, thereby improving the bending efficiency of the terminals. In addition, a row of terminals may be bent simultaneously by the bending tool, which further improves terminal bending efficiency.