Views: 0 Author: Site Editor Publish Time: 2023-08-16 Origin: Site
The following table compares the performance of several common battery protection components:
name | Main materials | effect | advantage | shortcoming |
Thermal switch
| PTC | High current protection of battery packs
| Quickly sensing changes in current and temperature in the circuit, excessive temperature or current can cause the temperature of the bimetallic sheet inside the switch to reach the rated value of the switch, causing the metal sheet to trip and protect the battery and electrical appliances.
| After the metal strip trips, it may not reset, resulting in the battery pack voltage not working.
|
Overcurrent protector
| PTC | Battery pack overcurrent protection
| As the temperature increases, the resistance of this device linearly increases. When the current or temperature rises to a certain value, the resistance value suddenly changes (increases), causing the current to reach the mA level. When the temperature drops, it will return to normal and can be used as a battery connector to be connected in series to the battery pack.
| Higher prices
|
Fuses | Inductive circuit current and temperature
| When the current in the circuit exceeds the rated value or the temperature of the battery rises to a certain value, the fuse blows, causing the circuit to break and protecting the battery pack and electrical appliances from damage.
| The fuse cannot be restored after being blown and needs to be replaced in a timely manner, which is quite troublesome
|
