Centrifugal Rotation Velocity Adjusting Module for Speed Control

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Solution Overview

Problem

Existing rotating devices, such as children's scooters and handheld thermal induction printers, face challenges in controlling rotation velocity, leading to safety issues and poor printing quality due to excessive speed, as current systems lack effective automatic rotation velocity adjustment mechanisms.

Innovation Solution

A rotation velocity adjusting module that includes a fixed axle, a rotating component, and at least one rotation velocity adjusting mechanism comprising a driven component, a driving component, and a contact component, which uses centrifugal force to switch between friction and non-friction states based on preset threshold velocities, allowing for automatic speed control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If no rotation velocity adjusting mechanism is installed, then the rotating component can rotate freely without speed limitations, but the rotation velocity becomes uncontrollable leading to safety issues and poor performance

Engineering Contradiction:
Improvesafety and operational reliabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The rotation velocity adjusting mechanism is designed to automatically regulate the rotation speed of the rotating component without external intervention. The centrifugal force generated by the rotating component itself acts on the driving component to activate the speed adjustment function, making the system self-regulating and eliminating the need for external control systems.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The driven component serves as an intermediary element that transmits the centrifugal force from the rotating component to the contact component. This intermediary mechanism enables the transfer of rotational energy and force distribution, allowing smooth activation of the speed adjustment function without direct connection between the rotating component and the braking mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a manual emergency brake is installed, then a braking mechanism is available, but the user is unable to correctly operate it when the rotating component is going too fast

Engineering Contradiction:
Improveoperational easeVSAvoidemergency braking reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The rotation velocity adjusting mechanism operates autonomously based on the rotation speed of the rotating component. When the rotation velocity exceeds the threshold value, the centrifugal force automatically activates the contact component to press against the fixed axle, providing self-regulating speed control without requiring user intervention or manual operation.

Inventive Principle:
Principle #25Self-service

3Productivity

If the rotating component rotates too fast, then higher productivity is achieved, but noise levels increase and printing quality deteriorates

Engineering Contradiction:
Improveprinting speedVSAvoidprinting quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The rotation velocity adjusting mechanism provides automatic feedback control by continuously monitoring the rotation speed through centrifugal force generation. When the rotation velocity exceeds the threshold value, the system automatically activates the contact component to increase friction and reduce speed, ensuring the rotating component maintains optimal speed for high-quality printing without excessive noise.

Inventive Principle:
Principle #23Feedback

4Reliability

If the rotation velocity is automatically controlled, then safety and quality are improved, but the device complexity increases

Engineering Contradiction:
Improvesafety and operational reliabilityVSAvoidstructural complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The rotation velocity adjusting mechanism utilizes the centrifugal force generated by the rotating component itself to activate the speed control function. This self-service approach eliminates the need for external power sources, sensors, or complex control systems, achieving automatic speed regulation with minimal additional structural complexity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention extracts and utilizes the centrifugal force that is naturally generated by the rotating component during operation. By harnessing this existing physical phenomenon rather than introducing additional active control systems, the design achieves automatic speed regulation while minimizing added complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

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

The module effectively controls rotation velocity, enabling automatic speed reduction, acceleration, or maintenance of a fixed speed, thereby enhancing safety and printing quality by ensuring optimal operational speeds.

Implementation Method 1

When a rotation velocity of the rotating component reaches a threshold value, the driving component drives the driven component to rotate through the change of centrifugal force

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS10520048B2Rotation velocity adjusting module, rotating device and rotation velocity adjusting method
Publication Date: 2019.12.31 WISTRON CORP
  • US10520048B2 patent drawing
  • US10520048B2 patent drawing
  • US10520048B2 patent drawing

AI summary

A rotation velocity adjusting module includes a fixed axle, a rotating component and a rotation velocity adjusting mechanism. The rotating component is pivoted to the fixed axle. The rotation velocity adjusting mechanism includes a driven component, a driving component and a contact component. The driven component is rotatably connected to the rotating component. The driving component and the contact component are disposed on the driven component. When a rotation velocity of the rotating component reaches a threshold value, the driving component drives the driven component to rotate by the change of centrifugal force, so as to switch states of the contact component.