Door Accessory Power System Kinetic Energy Recovery

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Solution Overview

Problem

There is no existing means to harness and utilize the kinetic energy from moving doors to power door accessory assemblies, such as powered locks and latch actuators, which typically rely on battery operation or hard-wired electricity.

Innovation Solution

A powered door accessory system that includes a generator and a power storage device, where the generator converts kinetic energy from a moving door into electrical energy, which is then stored and used to power the door accessory assemblies, such as powered door locks and latch actuators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If door accessory assemblies are battery operated, then they can operate independently without hard-wired electricity, but the batteries require replacement and add device complexity

Engineering Contradiction:
Improveindependent operationVSAvoidbattery replacement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The door accessory assembly serves itself by capturing kinetic energy from door movement through the generator and storing it in the power storage device, eliminating the need for external battery replacement or hard-wired electricity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system recovers kinetic energy that would otherwise be wasted during door movement, converting it into electrical energy to power the door accessory assembly

Inventive Principle:
Principle #34Discarding and recovering

2Use of energy by moving object

If door accessory assemblies are hard-wired to electricity, then continuous power is available, but external electricity sources are required and energy efficiency is reduced

Engineering Contradiction:
Improveenergy efficiencyVSAvoidexternal wiring
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The system generates its own power by capturing kinetic energy from door movement, making it independent of external electricity sources while maintaining continuous operation capability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system converts the kinetic energy from door movement, which would otherwise be wasted, into useful electrical energy to power the door accessory assembly

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Loss of energy

If kinetic energy from door movement is not captured, then the system remains simple, but energy is wasted and door accessory assemblies cannot be powered

Engineering Contradiction:
Improvekinetic energy recoveryVSAvoidgenerator and power storage device
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The system captures and converts kinetic energy from door movement into electrical energy, transforming what would be wasted energy into a useful power source for the door accessory assembly

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The system combines the generator, power storage device, and door accessory assembly into an integrated unit where the generator captures kinetic energy and the power storage device stores it for powering the door accessory assembly

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

This system effectively recycles kinetic energy from door movement to power door accessory assemblies, reducing the need for external electricity sources and enhancing energy efficiency.

Implementation Method 1

generating electrical power by moving a member operatively connected to a door

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

storing the generated electrical power in a power storage device

Methodology Applied
Scientific EffectEnergy storage: Electrical Accumulator

Data Source

PatentUS7522042B2Door accessory power system
Publication Date: 2009.04.21 T K M UNLTD
  • US7522042B2 patent drawing
  • US7522042B2 patent drawing
  • US7522042B2 patent drawing

AI summary

A powered door accessory system generally includes a powered door accessory assembly, a generator, and a power storage device. In an embodiment, the powered door accessory assembly includes an electric drive and a driven member operatively connected to the electric drive. The generator is in electrical communication with the electric drive of the powered door accessory assembly and the power storage device. A method for operating a door accessory assembly is also disclosed.