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US 12,012,796 B2Granted
Door operator with an abnormal voltage protection function and method for protection of a door operator from an abnormal voltage
OwnerChung Hsien Hsiehinventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a door operator with an abnormal voltage protection function and a method for abnormal voltage protection of a door operator. According to the present invention, before a door operator motor is electrically energized by an external power source, a controller determines whether the external power source meets the rated voltage of the door operator. In the case that the external power source meets the rated voltage, the controller activates the door operator motor; in the case that the external power source does not meet the rated voltage, the door operator motor is deactivated, and the controller issues a warning.
Claims10
A door operator with an abnormal voltage protection function, comprising:
- a power connection part;
- an overvoltage protection module, electrically coupled to the power connection part and comprising a thermistor and a wirewound resistor connected in parallel;
- a linear transformer, electrically coupled to the overvoltage protection module;
- a controller, electrically coupled to the linear transformer;
- a switch module, electrically coupled to the controller;
- and
- a door operator motor, electrically coupled to the controller,
- wherein when the power connection part is electrically connected to an external power source, the controller is electrically energized by the external power source through the thermistor and the linear transformer, and the controller determines whether an input voltage of the external power source is out of a preset range or not;
- when the input voltage meets the preset range, the controller activates the switch module, the controller is electrically energized by the external power source through the switch module, and the controller outputs a control command to the door operator motor;
- when the input voltage is out of the preset range, the controller does not activate the switch module, and when the resistance value of the thermistor increases beyond the resistance value of the wirewound resistor, the controller is electrically energized by the external power source through the wirewound resistor and the linear transformer, and the controller issues a warning.
7 more elements
A door operator with an abnormal voltage protection function, comprising:
- a power connection part;
- an overvoltage protection module, electrically coupled to the power connection part and comprising a fuse and a wirewound resistor, the fuse and the wirewound resistor being connected in parallel;
- a linear transformer, electrically coupled to the overvoltage protection module;
- a controller, electrically coupled to the linear transformer;
- a door operator motor, electrically coupled to the controller,
- wherein when the power connection part is electrically connected to an external power source with an input current of the external power source being smaller than a fusing current, the controller is electrically energized by the external power source through the fuse and the linear transformer, and the controller determines whether an input voltage of the external power source meets a working voltage range or not;
- when the input voltage meets the working voltage range, the controller outputs a control command to the door operator motor;
- when the input voltage is out of working voltage range, the controller issues a warning;
- when the input current of the external power source is greater than the fusing current, the fuse is blown and opened, the controller is electrically energized by the external power source through the wirewound resistor and the linear transformer, and the controller issues the warning.
6 more elements
A method for abnormal voltage protection of a door operator, comprising the steps of:
- (A) providing an external power source to a power connection part, the power connection part being electrically coupled to an overvoltage protection module comprising a thermistor and a wirewound resistor, the thermistor and the wirewound resistor being connected in parallel;
- (B) electrically energizing a controller through the thermistor and a linear transformer by the external power source;
- and
- (C) determining whether an input voltage of the external power source is out of a preset range nor not by the controller,
- wherein when the input voltage meets the preset range, the controller activates a switch module so that the controller is electrically energized by the external power source through the switch module, and the controller outputs a control command to a door operator motor;
- wherein when the input voltage is out of the preset range, the controller deactivates the switch module, and when a resistance value of the thermistor increases beyond a resistance value of the wirewound resistor, the controller is electrically energized by the external power source through the wirewound resistor and the linear transformer, and the controller issues a warning.
3 more elements
Dependencies are inferred from the claim text.