Electric Lock Clutch Mechanism Design for Mode Interference

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing electric locks with clutch mechanisms have complex structures and numerous components, limiting design flexibility and reliability due to potential interference between electronic and manual control modes.

Innovation Solution

A clutch mechanism comprising a driving member, an elastic member, a rotating member, and a motor, with inclined surfaces and a gear assembly, allowing smooth operation between electronic and manual control modes by preventing component damage through directional rotation and elastic abutment, reducing component count and enhancing design flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a clutch mechanism is added to prevent interference between electronic and manual control modes, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improveprevention of mutual interference between control modesVSAvoidstructure complexity and component quantity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the clutch mechanism with the existing driving structure by integrating the elastic member and inclined surfaces into the housing's driving structure. The driving member serves dual purposes: it transmits motor torque and simultaneously functions as the clutch element that prevents interference between electronic and manual modes. This merging eliminates the need for separate clutch components while maintaining the protective function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The driving member is designed to perform multiple functions: it acts as both the torque transmission element from the motor and the clutch mechanism that prevents simultaneous operation of electronic and manual controls. The elastic member with inclined surfaces provides both the clutch engagement function and the directional control function, allowing a single component to handle multiple operational requirements.

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

2Reliability

If more components are added to the clutch mechanism, then reliability is improved, but ease of manufacture deteriorates

Engineering Contradiction:
Improveprotection against improper operationVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent integrates the clutch mechanism directly into the housing's driving structure, combining multiple functions into existing components. The elastic member is arranged within the housing and works with the driving structure's inclined surfaces, eliminating the need for separate clutch assemblies and reducing manufacturing steps.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The elastic member automatically engages with the inclined surfaces based on the rotational direction of the driving member, providing self-regulating clutch functionality without requiring external control mechanisms. The mechanism automatically prevents improper operation through its mechanical design, where the elastic member's engagement geometry inherently blocks simultaneous electronic and manual control activation.

Inventive Principle:
Principle #25Self-service

3Reliability

If a complex clutch mechanism is used, then reliability is improved, but adaptability deteriorates

Engineering Contradiction:
Improveprevention of component damageVSAvoidappearance design flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The clutch mechanism is merged with the housing structure itself, where the driving structure with inclined surfaces is formed as part of the housing. This integration allows the protective function to be achieved without adding external components that would constrain the overall design freedom and appearance flexibility of the electric lock.

Inventive Principle:
Principle #5Merging (Combining)

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 simplified clutch mechanism prevents damage from improper operation, improves reliability, and allows for a thinner, more flexible electric lock design by effectively managing interactions between electronic and manual control modes.

Implementation Method 1

an elastic member arranged on the driving member for abutting against the driving structure

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The driving structure has a first inclined surface, a second inclined surface and a bottom surface located between bottom portions of the first inclined surface and the second inclined surface

Methodology Applied
Scientific EffectInclined plane: Inclined Plane

Data Source

PatentUS11788322B2Electric lock and clutch mechanism thereof
Publication Date: 2023.10.17 TAIWAN FU HSING INDUSTRIAL CO LTD
  • US11788322B2 patent drawing
  • US11788322B2 patent drawing
  • US11788322B2 patent drawing

AI summary

An electric lock includes a housing, a clutch mechanism and a manual control member. The housing is formed with a driving structure having a first inclined surface, a second inclined surface and a bottom surface. The clutch mechanism includes a driving member having a pushing structure, an elastic member arranged on the driving member for abutting against the driving structure, a rotating member having a pushed structure, and a motor for driving the driving member to rotate. The manual control member is connected to the rotating member. When the motor drives the driving member to rotate relative to the driving structure, the elastic member abuts against the first or second inclined surface to push the driving member to move toward the rotating member, so as to allow the pushing structure to abut against the pushed structure, in order to further drive the rotating member to rotate the manual control member.