In order to enable simple, low-cost monitoring of a motor, a switch box cover for the motor, a condition monitoring system has a sensor unit for detecting a measured variable of the motor, a communication device, which is designed to provide a characteristic value that characterizes the measured var
In order to enable simple, low-cost monitoring of a motor, a switch box cover for the motor, a condition monitoring system has a sensor unit for detecting a measured variable of the motor, a communication device, which is designed to provide a characteristic value that characterizes the measured variable to a reading device, and a supply unit for supplying the sensor unit with energy.
대표청구항▼
1. A terminal box cover for a motor, comprising: a sensor unit to record a measured variable for a condition of the motor, the measured variable including at least one of a temperature of the motor, a temperature of a stator winding of the motor, and an out-of-balance condition of the motor;a commun
1. A terminal box cover for a motor, comprising: a sensor unit to record a measured variable for a condition of the motor, the measured variable including at least one of a temperature of the motor, a temperature of a stator winding of the motor, and an out-of-balance condition of the motor;a communications device to transmit to a reading device a parameter that characterizes the measured variable available; anda supply unit to supply energy to the sensor unit, the supply unit being supplied with energy from an energy source that is external to the terminal box cover, whereinall components of at least the sensor unit and the communications device are provided completely within the terminal box cover, which fits on and covers a terminal box,the terminal box is fixed to the motor, andthe terminal box cover forms a self-sufficient monitoring unit for monitoring the condition of the motor. 2. The terminal box cover as claimed in claim 1, wherein the supply unit also supplies energy to the communications device. 3. The terminal box cover as claimed in claim 1, wherein the motor has an electronic rating plate storing characteristic data of the motor, andthe communication device communicates with the electronic rating plate of the motor and transmits the characteristic data to the reading device. 4. The terminal box cover as claimed in claim 1, wherein the sensor unit performs a partial discharge measurement. 5. The terminal box cover as claimed in claim 1, wherein the sensor unit has at least one sensor to determine the measured variable, andthe sensor unit compares the measured variable with a reference value of the motor to determine the parameter. 6. The terminal box cover as claimed in claim 5, wherein the motor has an electronic rating plate, andthe communication device communicates with the electronic rating plate of the motor to obtain the reference value. 7. The terminal box cover as claimed in claim 1, wherein the sensor unit analyzes a plurality of measured variables with one another. 8. The terminal box cover as claimed in claim 1, wherein the sensor unit has a processor to determine the parameter. 9. The terminal box cover as claimed in claim 1, wherein the reading device is an external, remote reading device, andthe communications device communicates with the external, remote reading device. 10. The terminal box cover as claimed in claim 1, wherein the supply unit couples energy from a motor connecting cable. 11. The terminal box cover as claimed in claim 1, wherein the supply unit obtains energy by energy harvesting. 12. A terminal box of a motor, comprising: a terminal box base, the terminal box base being fixed to the motor; anda terminal box cover to fit on and cover the terminal box base, the terminal box cover comprising: a sensor unit to record a measured variable for a condition of the motor, the measured variable including at least one of a temperature of the motor, a temperature of a stator winding of the motor, and an out-of-balance condition of the motor;a communications device to transmit to a reading device a parameter that characterizes the measured variable available; anda supply unit to supply energy to the sensor unit, the supply unit being supplied with energy from an energy source that is external to the terminal box cover, whereinall components of at least the sensor unit and the communications device are provided completely within the terminal box cover such that the terminal box cover forms a self-sufficient monitoring unit for monitoring the condition of the motor. 13. A motor comprising: a motor drive having terminals; anda terminal box, comprising: a terminal box base, the terminal box base being fixed to the motor drive; anda terminal box cover to fit on and cover the terminal box base, the terminal box cover comprising: a sensor unit to record a measured variable for a condition of the motor, the measured variable including at least one of a temperature of the motor, a temperature of a stator winding of the motor, and an out-of-balance condition of the motor;a communications device to transmit to a reading device a parameter that characterizes the measured variable available; anda supply unit to supply energy to the sensor unit, the supply unit being supplied with energy from an energy source that is external to the terminal box cover, whereinall components of at least the sensor unit and the communications device are provided completely within the terminal box cover such that the terminal box cover forms a self-sufficient monitoring unit for monitoring the condition of the motor. 14. A terminal box cover for a motor, comprising: a sensor unit to record a measured variable for a condition of the motor, the measured variable including at least one of a temperature of the motor, a temperature of a stator winding of the motor, and an out-of-balance condition of the motor;a wireless communications device to transmit a parameter that characterizes the measured variable, the parameter being transmitted to a remote reading device; anda supply unit to supply the sensor unit with electrical energy, the supply unit being supplied with energy from an energy source that is external to the terminal box cover, whereinthe supply unit converts environmental energy into electrical energy without a hardwired connection to an electric energy source,all components of at least the sensor unit and the communications device are provided completely within the terminal box cover, which fits on and covers a terminal box,the terminal box is fixed to the motor, andthe terminal box cover forms a self-sufficient monitoring unit for monitoring the condition of the motor. 15. The terminal box cover as claimed in claim 14, wherein the motor is externally connected via terminals within the terminal box. 16. The terminal box cover as claimed in claim 14, wherein the supply unit obtains electrical energy by converting energy from a heat source, a vibration source or an air flow source.
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