Battery-Powered Door Locking Device with Independent Subsystems
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Solution Overview
Problem
Existing hold-open arrangements for fire protection doors require extensive wiring to the building's electricity network, causing damage during retrofitting and are complex to assemble, especially in historical buildings.
Innovation Solution
A battery-operated locking arrangement with independent subsystems that use magnetic coils and control devices to lock or release the door, allowing operation without external power, featuring a working current principle and self-monitoring capabilities to ensure reliable release in case of hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hold-open arrangements are connected to the building power supply system for energy supply, then the locking arrangement can be reliably powered, but extensive wiring is required causing damage during retrofitting and complex assembly
Solution Approach 1:
The patent extracts the power supply from the building's fixed electricity network and relocates it to a portable battery unit. This allows the locking arrangement to be powered without requiring extensive wiring through walls and ceilings, thereby avoiding damage to historical building fabrics while maintaining reliable power supply for the holding device.
Solution Approach 2:
The patent introduces a battery as an intermediary energy storage device between the user and the locking arrangement. This intermediary component provides power without requiring direct connection to the building's power network, eliminating the need for complex wiring installation while ensuring continuous power supply for the holding device.
2Ease of manufacture
If cabling is laid under plaster for optimal appearance, then the installation is aesthetically acceptable, but walls and ceilings must be pr open causing damage
Solution Approach 1:
The patent removes the requirement for concealed cabling by extracting the power supply to a portable battery unit. This eliminates the need to pry open walls and ceilings for cable installation, thereby preventing damage to historical building fabrics while still providing a clean, professional installation appearance.
3Use of energy by moving object
If the holding device is held in the releasing state without energy supply, then energy is saved, but the door cannot be locked in the open position
Solution Approach 1:
The patent inverts the traditional locking mechanism logic. Instead of using energy to maintain the locked state, the system uses energy only to release the door from the held position. The holding device is designed to maintain the door in the open position passively without energy supply, and electrical energy is applied only when door release is required, achieving both energy savings and reliable door holding.
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 solution eliminates the need for building-wide cabling, simplifies installation, and ensures reliable and safe door release in emergency situations without damaging historical structures, while maintaining energy efficiency.
Implementation Method 1
Each subsystem (25.1, 25.2) has at least one magnetic coil (10) with which, by actuation, the holding device (7) can be transferred from the locking state into the releasing state
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
1. Holding device (1) for a door (2), comprising: - a release device (8) designed to send a release signal, and - a holding device (7) designed to hold the door (2) in a closed or open position, - wherein the holding device (1) is configured, upon sending the release signal by the release device (8), to transfer the holding device (7) from a holding state to a releasing state by supplying electrical energy, - wherein the holding device (1) comprises at least two independent subsystems (25), wherein the holding device (7) can be transferred from the holding state to the releasing state by each subsystem (25) independently of the at least one other subsystem (25).