Thermal motor protector is a combination of two different alloys together, through the current will heat, because two different alloy thermal expansion coefficient is different, the alloy is bound to ...
We all know that sensors have phone temperature sensor, car sensors and so on, but with the development of intelligence, the application of sensors has been gradually applied to the work of robots.
So in addition to the sensors used in home appliances, sensor in the automobile application and fuel graulism and other related parameters measurement.
Long-term thermal overload protector switch will reduce the insulation level of circuit and even burn equipment or circuit; Can cause use hidden danger, light burn fuse, heavy make circuit burn, cause...
thermal motor protection can automatically clear false alarm information after short-term discontinuous electrical recovery, realize restart, greatly reduce the scope of the accident.
Refrigerator thermostat controller with time delay and the function of the temperature control, the time delay is to protect the refrigerator under the condition of sudden power off suddenly calls.
PTC air heater has the characteristic of automatic constant temperature, no temperature control system is needed, the PTC air heater can be directly energized.
For the temperature type motor thermal protector (temperature switch), because the current does not pass through the bimetal sheet, the thermal effect of the current has little influence on the action...
Motor thermal protectors can be divided into two categories: temperature type and overcurrent type according to whether the sensing double plate is overloaded current.
However, motor thermal protector relay has fatal defects, including rough setting, large environmental impact, poor repeatability, large error and single function.
This kind of motor thermal protector mainly by single chip microcomputer as the controller, which can realize intelligent comprehensive protection of the motor.
Motor thermal protector is if appliances appeared abnormal working state, to ensure that the temperature is less than (or less than) a control element can be manually reset temperature limit.