Battery-Free Wireless Switch Lever Mechanism for Low Actuation Force
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Solution Overview
Problem
Current wireless switches without batteries are difficult to operate due to the high effort required, making them unsuitable for children and less efficient compared to conventional switches.
Innovation Solution
A wireless control device utilizing an efficient electric generator with a coil and sliding block mechanism, along with a transmission member and actuating lever, which converts a rotational movement of the button into a translation movement to generate electrical energy for signal transmission, reducing the operational force needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a battery-free wireless switch with a simple generator is used, then the device is compact and self-contained, but the operational force required is high (7-10 N)
Solution Approach 1:
The device is divided into distinct functional modules: a button module, a transmission element, an actuating lever, and a generator. This segmentation allows each component to be optimized independently - the transmission element and actuating lever form a mechanical advantage system that reduces operational force without requiring a complex generator design.
Solution Approach 2:
The transmission element acts as an intermediary between the button and the generator, while the actuating lever serves as a mechanical mediator that amplifies the input force. This intermediary mechanism transforms the user's input into effective generator actuation with reduced operational force requirement.
2Power
If a high-performance generator with coil and sliding block is used, then the generator efficiency is improved, but the device complexity increases
Solution Approach 1:
The transmission element and actuating lever are combined into an integrated mechanical advantage system that works together to reduce operational force. This merging allows the high-performance generator to be actuated efficiently without requiring separate complex control mechanisms.
Solution Approach 2:
The actuating lever transforms rotational movement from the button into translational movement of the sliding block within the generator. This dimensional transformation enables the high-performance generator to operate efficiently while maintaining a compact overall device structure.
3Ease of operation
If the button is designed for low operational force, then the ease of operation is improved, but the energy generated by the generator is insufficient
Solution Approach 1:
The actuating lever serves as a mechanical intermediary that amplifies the small force applied to the button. This lever mechanism ensures that even low operational force inputs are transformed into sufficient mechanical energy to effectively drive the high-performance generator and generate adequate electrical energy for signal transmission.
Solution Approach 2:
The mechanical advantage system changes the force parameter through the lever ratio, allowing a small input force to produce a larger effective force on the generator. This parameter transformation enables low operational force while maintaining sufficient energy generation for wireless signal transmission.
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 more efficient and ergonomic wireless switch that requires less operational force, enhancing usability for all users, including children, while maintaining battery-free operation.
Implementation Method 1
electromagnetic converters, which use the movement of a magnet to generate induced currents in a circuit
Implementation Method 2
piezoelectric converters, which utilize the properties of a material to generate a voltage when subjected to mechanical stress
Data Source
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AI summary
The invention relates to a wireless control device (2'), comprising an actuation button, an electronic control circuit including a transmitter capable of wirelessly transmitting a control signal to another control device connected to an electrical wire, an electrical generator to power the circuit, this generator being capable of converting mechanical energy into electrical energy, and a transmission element (14') for transmitting mechanical energy applied to the actuation button to the generator. The device includes a mechanism comprising an actuation lever (120), a first part of which cooperates with the transmission element and a second part of which is connected to a sliding block of the generator. Tilting the button pushes on the transmission element to one side or the other. The transmission element then moves perpendicularly to the tilting axis (X4) of the button and causes the actuation lever to rotate.