Thermal protectors are widely used, not only in automobiles, batteries, motors, etc., but also in smart home appliances that have developed rapidly in recent years. The main function is to control excessive current and excessive temperature to protect it. Protect the more important components in the device. However, the characteristics of each protected object have different requirements for the protector. Let's take a look at the protection conditions of various equipment together.
First of all, the most common motors, such as washing machine motors, juicer motors, soymilk machine motors, vacuum cleaner motors, etc., thermal protectors are used in motors. When the motors are overloaded, locked-rotor, under-voltage, or poor heat dissipation during operation, the temperature of the motor will be too high. The long-term occurrence of this situation will cause the failure of the external insulation material of the motor and shorten the life of the motor. The thermal protector can sense the temperature and current to protect the motor.
The second product that often uses a protector is the battery. Generally, it is loaded on the battery protection board to protect the high temperature caused by charging and discharging failures, short circuits, etc., which can prevent the battery from exploding due to excessive temperature.
The third type of circuit board is to prevent the temperature from being too high and the current from being too high, which will affect the whole machine, and even burn the main machine. Generally, it is used to control the fan to cool the whole machine.
When choosing a thermal protector, it is necessary to determine the comprehensive matching of the electrical specifications, material characteristics, environment and other conditions of the protected object. Different blind installations are directly based on temperature and current, and product testing is required before use.
There are many types of thermal protectors that can perform dual protection of temperature and current. For example, Haichuan HCET-B series motor thermal protectors can perform dual temperature and current protection. When in the control loop, they not only function as temperature sensors, but also perform temperature sensing and execution. Dual functions, can be customized according to your own equipment requirements.
