Electronically operated door lock with solid housing and mounting element

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Solution Overview

Problem

Existing methods for converting conventional door locks to keyless entry systems require the replacement of all components, including door fittings, and do not adequately address burglar resistance.

Innovation Solution

An electronically operated door lock design that reuses existing door fittings and components by integrating a solid-housed cylinder assembly with a mounting element that fits within the existing door structure, enhancing security and allowing for limited changes to the door, and includes a channel for electrical wiring without the need for additional holes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If all existing components including door fittings are replaced to implement keyless functionality, then the keyless entry function is achieved, but the device complexity and installation cost increase

Engineering Contradiction:

Improvekeyless entry functionVSAvoidreplacement of all components

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The existing door fitting is designed to serve multiple functions: it accommodates both the traditional mechanical key operation through the cylinder and the electronic keyless entry system through the mounted module. This multi-functionality allows the same physical structure to support both operating modes without requiring complete replacement of door fittings.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

A mounting element is introduced as an intermediary component that bridges the electronic module and the existing door fitting. This mounting element allows the module to be securely attached to the door fitting without modifying the door structure or replacing the entire fitting assembly, thus simplifying the implementation of keyless functionality.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If conventional locks are modified for keyless entry, then keyless functionality is added, but burglar resistance is compromised

Engineering Contradiction:

Improvekeyless entry capabilityVSAvoidburglar resistance

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The housing of the cylinder assembly is designed to be solid and cover the distal end of the cylinder, preventing burglars from accessing or manipulating internal components. This preliminary protective design counteracts potential forced entry attempts before they can exploit vulnerabilities in the keyless entry mechanism.

Inventive Principle:

Principle #9Preliminary anti-action

Solution Approach 2:

The electronic module is mounted within or over the existing door fitting structure, with the mounting element fitting into the opening of the door fitting. This nested arrangement protects the electronic components within the robust existing fitting structure, maintaining burglar resistance while adding keyless functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Object-affected harmful factors

If a solid-housed cylinder assembly is used to enhance security, then burglar resistance is improved, but the space required in the door structure increases

Engineering Contradiction:

Improveburglar resistanceVSAvoidspace in door structure

Core Design Contradiction:

Object-affected harmful factorsVSVolume of moving object

Solution Approach 1:

The solid housing of the cylinder assembly extends in the dimensional direction away from the door face, utilizing the depth of the door structure rather than increasing the face profile. This allows the robust housing to provide enhanced security while maintaining a compact appearance and minimizing impact on door thickness.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

Enables a compact, secure, and cost-effective conversion of mechanical locks to keyless systems with improved burglar resistance and efficient use of space, allowing for the reuse of existing components and reducing installation complexity.

Implementation Method 1

an electromechanical actuator, such as an electric motor or solenoid, on one side of the lock case... to rotate the cylinder and cam to drive the bolt

Methodology Applied

Scientific EffectElectromechanical actuation: Electromagnetic Induction

Data Source

PatentEP3597843B1Electronically operated door lock

Publication Date: 2022.05.25 LOQED HOLDING BV

Figure 1~2
Figure 3~4

AI summary

This disclosure relates to an electronically operated door lock (2) comprising - a lock case (3) comprising a through-hole (10) for a cylinder assembly (11), - a cylinder assembly (11) comprising a housing (15), a cylinder (16) rotatably mounted in the housing (15) and provided with a cam (19) to drive a bolt (8; 9) in the lock case (3), - an electromechanical actuator on one side of the lock case (3) to rotate the cylinder (16) and cam (19) to drive the bolt (8; 9), - an electronic module (33) on the other side of the lock case (3) for controlling the electromechanical actuator, and - door fittings (6, 7), wherein at least the door fitting (6) on the side of the module comprises an opening (32). The side (15A) of the housing (15) of the cylinder assembly (11) facing towards the module (33) is blind. Further, the lock comprises a mounting element (34) for mounting the module (33) in and/or over the opening (32) in the door fitting (6).