Magnetic Coupling Power Transmission for Variable Rotational Force
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Solution Overview
Problem
Existing power transmission systems in devices like air coolers, vacuum cleaners, and fuel cell vehicles face inefficiencies due to mechanical and electric losses, leading to increased energy consumption and costs, particularly in low-speed driving regions and high-humidity environments.
Innovation Solution
A variable power transmission device utilizing induced and rotating magnetic fields generated from an electric motor's rotational power to increase rotational force transmission efficiency, reducing mechanical and electric losses, and eliminating the need for large capacity compressors or high-priced heat exchangers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a large capacity compressor is used to lower air temperature in a wide space, then cooling performance is improved, but power consumption and operating cost increase
Solution Approach 1:
The patent replaces the traditional mechanical compressor with a magnetic field-based power transmission system. The magnetic coupling transmission device transmits rotational power from the motor to the expander without mechanical contact, reducing friction losses and improving overall system efficiency. This substitution of mechanical transmission with magnetic field transmission reduces the power consumption required to achieve the same cooling effect.
2Temperature
If a high priced heat exchanger is used to improve cooling performance, then cooling efficiency is improved, but device cost increases
Solution Approach 1:
The magnetic coupling power transmission system improves the efficiency of the expander, which in turn enhances the cooling performance of the heat exchanger. By optimizing the power transmission to the expander through magnetic coupling, the system achieves better cooling efficiency with a standard heat exchanger, avoiding the need for expensive high-performance heat exchangers.
3Power
If mechanical power transmission is used to transmit rotational power, then power transmission is achieved, but mechanical loss increases
Solution Approach 1:
The patent employs magnetic coupling transmission to replace traditional mechanical power transmission components such as belts, gears, and shafts. The magnetic field couples the motor rotor and expander rotor without physical contact, eliminating friction losses, belt slip, and mechanical wear. This results in significantly reduced mechanical energy loss while maintaining effective rotational power transmission.
4Power
If electric power transmission is used to transmit power, then power transmission is achieved, but electric power loss increases
Solution Approach 1:
The magnetic coupling transmission system converts electrical energy to mechanical energy more efficiently by using magnetic fields directly to drive the rotors. This direct electromagnetic-to-mechanical conversion bypasses intermediate electrical transmission stages that would cause resistive losses, thereby reducing overall electric power loss in the system.
5Force
If a fan is used to produce vacuum in a vacuum cleaner, then vacuum force is improved, but power consumption and noise increase
Solution Approach 1:
The magnetic coupling transmission system improves the efficiency of the expander-driven vacuum generation. By transmitting power through magnetic fields without mechanical losses, more of the motor's output power is effectively converted into vacuum force, reducing the overall power consumption required to achieve the same vacuum level.
6Device complexity
If rotational force is not increased before transmission, then transmission is simple, but driving energy is wasted
Solution Approach 1:
The magnetic coupling transmission system allows for dynamic optimization of the power transmission ratio. The magnetic field strength and coupling can be adjusted to optimize the rotational force multiplication effect, enabling the system to increase rotational force when needed while maintaining simple transmission architecture. This dynamic capability reduces driving energy loss without significantly increasing structural complexity.
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 achieves reduced driving losses, noise, and costs while maintaining durability, with improved energy efficiency and performance across various applications, including air coolers, vacuum cleaners, and fuel cell vehicles.
Implementation Method 1
a front driver module and a rear driver module disposed on front and rear sides of the power generator to produce magnetic fields around the power generator
Implementation Method 2
producing a rotational force from magnetic fields generated by receiving rotational power, increasing the rotational force, and finally transmitting the rotational power
Data Source
AI summary
The present invention relates to a variable power transmission device which comprises: a power generator, a front driver module and a rear driver module; a power generator and any one selected from the front driver module and the rear driver module; or a power generator. The variable power transmission device produces a rotational force from a combination of: an induced magnetic field generated by the front driver module; a rotating magnetic field generated by the front driver module and the power generator; a rotating magnetic field generated by the power generator and the rear driver module; and an induced magnetic field generated by the power generator together with the rear driver module, using the power supplied from a power applying driving body or the power supplied from a power receiving driving body, increases the rotational force through acceleration, and transmits the power to the power receiving driving body.