Electronic Door Chime Circuit for Safe IoT Doorbell Power
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Solution Overview
Problem
Existing Internet of Things (IoT) doorbells are often not compatible with conventional doorbells, and there is a need for a safe, cost-effective electronic door chime that can power and integrate with both simple and smart external doorbell devices while meeting safety standards.
Innovation Solution
A housing designed for installation in a junction box, containing a power supply that produces a safe voltage output, a first circuit with a chiming circuit, inductor, and monitor circuit, and a speaker, all isolated for safety, compatible with dual voltage junction boxes, and using specific materials for safety certification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a power supply produces high voltage output to power smart external doorbell devices with cameras and processors, then the doorbell devices can function continuously, but safety hazards increase
Solution Approach 1:
The power supply transforms the electrical parameters from high voltage mains power (120VAC) to low voltage output (18-24VAC, 300mA+) to enable continuous operation of smart doorbell devices while eliminating safety hazards associated with high voltage. This parameter transformation allows the system to maintain functionality while ensuring user safety.
2Volume of moving object
If the housing is designed to fit in a single gang junction box section, then installation space is optimized, but the power supply may not have sufficient space to operate continuously
Solution Approach 1:
The housing is divided into two separate compartments: a first compartment for the power supply and a second compartment for the first circuit. This segmentation allows each component to have dedicated space within the compact single gang junction box enclosure, enabling the power supply to operate continuously without overheating while maintaining a space-efficient overall design.
3Object-affected harmful factors
If the power supply and first circuit are placed in separate compartments, then safety isolation is improved, but device complexity increases
Solution Approach 1:
The housing is segmented into two compartments separated by a partition wall, with the power supply in the first compartment and the first circuit in the second compartment. This physical segmentation provides electrical isolation and safety while maintaining a relatively simple overall structure that can be manufactured as a single integrated unit.
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 provides a safe, cost-effective electronic door chime that is compatible with both simple and smart external doorbells, ensuring compliance with safety standards and continuous power supply for IoT devices.
Implementation Method 1
The power supply can be a transformer or other device that receives mains electric power and produces a power output
Implementation Method 2
The first circuit may have a chiming circuit, a doorbell connector, an inductor, and a monitor circuit
Implementation Method 3
The first circuit can be configured to pass a doorbell current through an external doorbell device connected to the doorbell connector. The first circuit may play sounds on a speaker
Data Source
AI summary
An electronic door chime can meet safety standards and be compatible with smart doorbells and IOT doorbells. Current generation smart doorbells, also called IOT doorbells, require continuous power to drive the cameras, audio interfaces, and other components within the smart doorbell. Compatibility issues with prior art doorbell systems have emerged with the smart doorbell receiving inadequate power or power that doesn't meet the smart doorbell's input specification. In some cases, a prior art doorbell system is driven to failure or to excessive temperatures when the smart doorbell continuously draws too much power. A new electronic door chime can safely power the smart doorbells while also being compatible with simple push button doorbell devices.