Multi-purpose Electrical Apparatus Motor Speed Differentiation
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Solution Overview
Problem
Integrated household electrical appliances often experience unstable operation due to excessive vibration caused by resonance when multiple rotating machinery components operate at similar speeds, leading to storage and space issues.
Innovation Solution
An electrical multi-purpose apparatus with a base frame unit housing an internal combustion engine, electric generator, air compressor, and jet cleaner, where the motors have distinct speeds and are supported by shockproof pads to mitigate resonance, ensuring stability and compactness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If multiple electrical appliances are integrated in one compact housing to reduce size, then the product size is reduced, but excessive vibration occurs due to resonance when rotating machinery components operate at similar speeds
Solution Approach 1:
The patent applies parameter changes by setting different operating speeds for the combustion engine motor, air compressor motor, and jet cleaner motor. Specifically, the combustion engine motor operates at 3600 rpm, the air compressor motor at 2800 rpm, and the jet cleaner motor at 1400 rpm. This speed differentiation changes the operational parameters of the rotating machinery to avoid resonant frequencies, thereby reducing vibration while maintaining compact integration.
2Area of stationary object
If multiple rotating machinery components are closely arranged and operate at similar speeds, then space is saved, but excessive vibration occurs due to resonance
Solution Approach 1:
The patent changes the operational speed parameters of the rotating machinery components to eliminate resonance. The combustion engine motor runs at 3600 rpm, the air compressor motor at 2800 rpm, and the jet cleaner motor at 1400 rpm. This parameter differentiation ensures that the rotating components do not operate at harmonically related speeds that would cause resonant vibration, thus allowing close arrangement without excessive vibration.
Solution Approach 2:
The patent applies the principle of mechanical vibration by deliberately differentiating the rotational speeds of the motors to avoid resonant frequencies. By operating the combustion engine motor at 3600 rpm, air compressor motor at 2800 rpm, and jet cleaner motor at 1400 rpm, the system prevents the buildup of resonant vibrations that would occur if the motors operated at similar speeds, thereby reducing harmful vibration effects.
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 effectively reduces vibration and enhances operational stability by differentiating motor speeds and using shockproof pads, allowing for compact and stable household use while maintaining performance.
Implementation Method 1
The combustion engine motor, the air compressor motor, and the jet cleaner motor have different motor speeds... supported by shockproof pads to mitigate resonance
Data Source
AI summary
An electrical multi-purpose apparatus includes a base frame unit, and an internal combustion engine, an electric generator, an output unit, an air compressor, and a jet cleaner that are disposed on the base frame unit. The internal combustion engine includes a combustion engine motor. The electric generator is driven operably by the internal combustion engine for generating electric power. The output unit, the air compressor, and the jet cleaner are electrically connected to the electric generator. The air compressor includes an air compressor motor. The jet leaner includes a jet cleaner motor. The combustion engine motor, the air compressor motor, and the jet cleaner motor have different motor speeds.