Capacitance Starter Switch Integrated with Receiver
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Solution Overview
Problem
Conventional antitheft apparatuses for equipment with prime movers are bulky due to the separate installation of starter switches and receivers, which increases the overall size of the system.
Innovation Solution
Integrating a capacitance-sensitive starter switch with a receiver on a single electronic circuit board, allowing the starter switch to be compact and eliminating the need for a separate space for installation, while maintaining the functionality of authenticating the electronic key's ID information to control the prime mover's operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a keyhole type or press-button type starter switch is provided separately from the receiver, then the switch can be easily operated, but the apparatus size increases due to requiring separate installation space for each component
Solution Approach 1:
The patent combines the starter switch and receiver into a single integrated unit mounted on the same electronic circuit board. The switch unit includes a case with a cap that covers the electrode pair, integrating the mechanical switching function with the electronic authentication receiver, thereby reducing the overall apparatus size while maintaining operational ease
2Ease of operation
If a keyhole type or press-button type starter switch is used, then the operator can easily manipulate it to start the prime mover, but the mechanical structure becomes large requiring more installation space
Solution Approach 1:
The patent replaces traditional mechanical keyhole or press-button switch structures with a capacitance-sensitive electrode pair that detects changes in electrostatic capacitance when the cap is manipulated. This substitution eliminates complex mechanical components while maintaining ease of operation, reducing structural complexity and installation space requirements
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 configuration results in a smaller, more compact antitheft apparatus with improved water-resistance and efficient ID authentication, effectively preventing theft by ensuring only authorized keys can start the prime mover.
Implementation Method 1
the starter switch comprises electrode pair that is sensitive to electrostatic capacitance
Data Source
AI summary
In an apparatus for preventing theft of equipment (electric motor) having a prime mover (motor), a prime mover controller, a starter switch that allows the operator to connect/disconnect power from a power source to the prime mover; and an authenticator that acquires ID information from an electronic key through a receiver when the key is brought close thereto by the operator, and permits the controller to start the prime mover when acquired ID information is determined to correspond with authentication ID information, the starter switch is made of electrode pair that is sensitive to electrostatic capacitance, and the starter switch and the receiver are installed together on an electronic circuit board, thereby achieving the smaller structure of the apparatus.