Switch Drive Motor Control for Multi-Voltage Power Input
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Solution Overview
Problem
Electrical switch drives require diverse motor types and designs to accommodate varying electrical supply voltages, leading to increased costs, component variance, and error rates due to complex wiring and installation requirements.
Innovation Solution
A compact motor apparatus with an integrated energy supply device and control unit, featuring a rectifier unit, voltage measuring unit, and switching unit, which can operate with different supply voltages, including single-phase and three-phase AC, and DC, allowing for a single motor variant to be used across different switches, reducing the need for multiple motor designs and simplifying installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different motor types and designs are used for different supply voltages, then the motor apparatus can adapt to various electrical supply voltages, but the device complexity and component variance increase
Solution Approach 1:
The patent implements a universal motor apparatus design where a single motor type with an integrated control apparatus can operate with different supply voltages (single-phase AC, three-phase AC, and DC). The control apparatus includes a rectifier unit that can process different voltage types and a switching unit that generates appropriate drive voltages for the motor, eliminating the need for multiple motor variants for different voltage requirements.
Solution Approach 2:
The control apparatus dynamically adjusts operating parameters based on the detected supply voltage type. The voltage measuring unit captures the supply voltage characteristics, and the control unit modifies the switching unit's operation accordingly to generate the appropriate pulse-width-modulated drive voltage for the motor, enabling adaptation to different voltage conditions without changing the motor hardware.
2Adaptability or versatility
If multiple component and wiring variants are used for different motor types, then different supply voltage requirements can be met, but the error rate and installation complexity increase
Solution Approach 1:
The control apparatus is designed as a universal interface that can accept single-phase AC, three-phase AC, or DC supply voltages. The rectifier unit and switching unit work together to convert any of these input types into the appropriate drive voltage for the motor, eliminating the need for different motor variants and reducing installation errors associated with matching components to voltage requirements.
Solution Approach 2:
The voltage measuring unit continuously monitors the supply voltage characteristics and provides feedback to the control unit. This feedback enables the control unit to automatically adjust the switching unit's operation to match the detected voltage type, ensuring reliable operation without requiring manual configuration or increasing installation error rates.
3Device complexity
If a single motor design is used for all supply voltages, then device complexity and component variance are reduced, but the ability to adapt to different voltage types is limited
Solution Approach 1:
The patent combines the motor with an integrated control apparatus that includes voltage detection, rectification, and switching components. This merging allows a single motor design to handle multiple voltage types through the control apparatus's ability to process different input voltages and generate appropriate drive signals, reducing the need for multiple motor variants.
Solution Approach 2:
The control apparatus acts as an intermediary between the supply voltage source and the motor. It includes a rectifier unit that standardizes different voltage types and a switching unit that generates the appropriate drive voltage for the motor based on the detected supply voltage, enabling a single motor design to work with various voltage sources.
4Adaptability or versatility
If diverse motor designs are implemented, then specific voltage requirements can be optimized, but production and installation costs increase
Solution Approach 1:
The motor apparatus is designed as a universal platform that can operate with different supply voltages through the control apparatus. This eliminates the need to manufacture and stock multiple motor variants for different voltage requirements, reducing production costs, inventory complexity, and installation expenses associated with matching components to specific voltage conditions.
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 enables a single motor design to adapt to various supply voltages, reducing production and installation complexity, lowering error probabilities, and allowing for standardized use across different electrical switches, thereby enhancing operational independence and reducing the number of motor variants needed.
Implementation Method 1
a rectifier unit for rectifying a supply voltage of the motor apparatus if the supply voltage is an AC voltage
Data Source
AI summary
A motor apparatus for a switch drive of an electric switch has an electric motor and a control apparatus for controlling the electric motor. The control apparatus has a power supply device for the electrical power supply of the electric motor. The electric power supply has a rectifier unit, a voltage measurement unit for detecting the supply voltage or a rectifier output voltage of the rectifier unit, a switch unit for generating a drive voltage for the electric motor from the supply voltage or from the rectifier output voltage, and a control unit for controlling the switch unit as a function of the supply or rectifier output voltage detected. Accordingly, the motor apparatus has a motor housing which, besides the electric motor, houses part of the power supply device and/or at least part of the control unit.