Modular Emergency Power Supply for Door Systems

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Solution Overview

Problem

Existing door systems with electrical components for automatic unlocking and locking lack a straightforward and retrofittable emergency power supply solution, especially in scenarios where the power supply is interrupted, such as in fire protection or escape doors.

Innovation Solution

A modular emergency power supply system with independent emergency power units, each comprising an energy store and an evaluation and control circuit on a printed circuit board, which can be easily integrated into the door system's current path, allowing door control electronics to monitor and manage energy storage and supply electrical components during emergencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a non-modular emergency power supply is installed in existing door systems, then the emergency power supply can provide backup power, but the installation and retrofitting become complex and difficult

Engineering Contradiction:
Improveemergency power supply reliabilityVSAvoidinstallation and retrofitting ease
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The emergency power supply is divided into multiple independent emergency power units, each capable of functioning autonomously. Each unit contains its own energy store and control circuitry, allowing individual modules to be installed or replaced without affecting other parts of the system. This modular segmentation enables straightforward retrofitting in existing door systems while ensuring reliable backup power functionality.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple electrical components are supplied by a centralized energy supply, then the system can coordinate multiple door operations, but the system complexity increases

Engineering Contradiction:
Improvedoor system coordination capabilityVSAvoidenergy supply system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The centralized energy supply is segmented into multiple independent emergency power units, each capable of independently supplying electrical components. This allows the system to maintain coordination capability across multiple door operations while reducing overall system complexity through distributed, modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each emergency power unit is designed with universal functionality to supply power to various electrical components (motors, locks, sensors) in different door configurations. The standardized interface and modular design allow the same unit type to serve multiple functions across different positions in the door system, simplifying the overall architecture.

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

Enables secure operation of door systems during power outages by ensuring that electrical components can continue to unlock or lock doors, with the modular design facilitating easy installation and retrofitting, protecting against voltage source interruptions and providing reliable energy storage.

Implementation Method 1

an emergency power supply, which comprises at least one electrical energy store and supplies the at least one electrical component with the electrical voltage in emergency operation

Methodology Applied
Scientific EffectElectrical energy storage: Battery (electricity)

Implementation Method 2

The energy stores of the emergency power supply are preferably designed as so-called supercapacitors, which have a high energy density and can be charged quickly

Methodology Applied
Scientific EffectCapacitance: Capacitance

Data Source

PatentEP3337008B1Power supply for a door assembly and corresponding door assembly
Publication Date: 2021.10.27 GEZE GMBH
  • EP3337008B1 patent drawingFigure 1
  • EP3337008B1 patent drawingFigure 2
  • EP3337008B1 patent drawingFigure 3~4

AI summary

The invention relates to a power supply for a door system (1), comprising door control electronics (7.1), a voltage source (7.2) which, in normal operation, supplies at least one electrical component of the door system (1) with an electrical voltage, and an emergency power supply (10) which includes at least one electrical energy storage device (20) and, in emergency operation, supplies the at least one electrical component (EK) of the door system (1) with the electrical voltage, as well as a door system (1) with such a power supply. According to the invention, the emergency power supply (10) has a modular design and comprises at least one independent emergency power unit (11) which has the at least one energy storage device (20) and an evaluation and control circuit on a printed circuit board and is connected in a current path between the voltage source (7.2) and the at least one electrical component (EK) of the door system (1), wherein the door control electronics (7.1) are connected to the emergency power supply.1) via communication with the at least one emergency power unit (11) determines the number and charge level of the electrical energy storage devices (20) of the emergency power supply (10).