Wireless Remote Control for Onboard Motor Inverter

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Solution Overview

Problem

Existing electric motors with onboard inverters face difficulties in control accessibility, especially when the motor is positioned in hard-to-reach areas, and remote control solutions are inconvenient for mobility.

Innovation Solution

An electric motor with a wireless remote control system for the onboard inverter, powered by a rechargeable battery with an induction-type charger, allowing for watertight sealing and easy detachment using magnet elements, featuring buttons or rotary controls, and optionally including a display and indicator lights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If control buttons are supported directly by the motor, then the control structure is simple, but the control accessibility deteriorates when the motor is positioned in hard-to-reach areas

Engineering Contradiction:
Improvecontrol structureVSAvoidcontrol accessibility
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

A wireless remote control unit is introduced as an intermediary device between the user and the motor control system. The remote control transmits control signals wirelessly to the inverter, enabling operation without direct physical access to the motor control panel. This resolves the contradiction by maintaining simple control architecture while dramatically improving accessibility when the motor is positioned in hard-to-reach areas.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a remote control panel connected by electrical cables is used, then the control accessibility is improved, but the mobility deteriorates when the motor needs to be moved

Engineering Contradiction:
Improvecontrol accessibilityVSAvoidmobility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent replaces the mechanical connection (electrical cables connecting the remote control panel to the inverter) with a wireless communication system. The remote control uses wireless transmission to send control signals to the inverter, eliminating the need for physical cable connections. This enables the motor to be moved freely without being constrained by cable routing, thereby improving mobility while maintaining control accessibility.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If a wireless remote control is used, then the mobility and control accessibility are improved, but the device complexity increases

Engineering Contradiction:
Improvecontrol accessibilityVSAvoidcontrol system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The inverter is designed to accept multiple types of control inputs: it can process signals from direct control buttons mounted on the motor, wired remote control panels, and wireless remote controls. This multi-functionality allows the system to accommodate different control methods without requiring separate dedicated systems for each, thereby limiting the increase in device complexity while still providing the benefits of wireless control.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables remote control of the motor without moving the control panel, ensuring watertight sealing and easy operation, enhancing accessibility and mobility while maintaining a simple and cost-effective design.

Implementation Method 1

the recharging device comprises an induction-type battery charger

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP2878076B1Electric motor with onboard inverter
Publication Date: 2020.04.15 MOTIVE INC
  • EP2878076B1 patent drawingFigure 1
  • EP2878076B1 patent drawingFigure 2
  • EP2878076B1 patent drawingFigure 3

AI summary

An electric motor (1) with onboard inverter, comprising a motor body (2) which is associated with at least one output shaft (3) and supports an inverter (4) for adjusting the speed of the output shaft (3); the electric motor (1) comprises remote control means of the wireless type (5) for the inverter (4)·