| 摘要 |
Mechanisms are provided to control the operation of a motor. In particular, a variable frequency drive motor controller is described which resides within a motor housing. Additionally, the speed at which the motor operates is based on a signal received from a Hall Effect switch or from a communication device in communication with a remote interface. The Hall Effect switch is also described; in particular, the Hall Effect switch features a magnet rotatably connected with one side of a motor housing. A Hall Effect sensor, located on the opposite side of the motor housing, detects the position of the magnet and outputs a signal to the motor controller, located within the motor housing, indicating the detected magnet position. Additional operating features are described relating to the safe operation and control of the motor in potentially hazardous environments. |
| 主权项 |
1. A motor comprising:
a motor housing enclosing a rotor and stator including one or more windings; a current sensor; a temperature sensor; a sensor configured to provide an indication of operation by measuring at least one of a rate at which the motor operates, an amount of torque provided by the motor, and an amount of power consumed by the motor; and a variable frequency drive controller disposed within the motor housing, wherein the variable frequency drive controller includes:
a motor control circuit having a system operating profile including a current threshold for the current sensor and a temperature threshold for the temperature sensor,at least one three-phase bridge driver circuit electrically coupled to the one or more windings, anda remote communication interface configured to wirelessly communicate with one or more servers using a communication network, wherein the motor control circuit is configured to wirelessly access a selected system operating profile from a plurality of system operating profiles located at the one or more servers via the remote communication interface, wirelessly receive an operating parameter, a current threshold for the current sensor, and a temperature threshold for the temperature sensor from the one or more servers based on the selected system operating profile located at the one or more servers, update the current threshold and the temperature threshold within the system operating profile of the motor control circuit based on the wirelessly received current threshold and temperature threshold respectively, compare the indication of operation received from the sensor to the wirelessly received operating parameter, and increase or decrease one or more of a rate at which the motor operates and an amount of torque the motor provides by adjusting a pulse width modulated signal provided to the three-phase bridge driver circuit based on (i) the comparison between the indication of operation received from the sensor and the wirelessly received operating parameter, (ii) a comparison between the current threshold for the current sensor and a current indication received from the current sensor, and (iii) a comparison between the temperature threshold for the temperature sensor and a temperature indication received from the temperature sensor. |
