The low - temperature environment mainly has the following impacts on the controller of the stage electric hoist, and there are corresponding solutions: Impacts on the Controller of the Stage Electric Hoist - **Performance Changes of Electronic components**: Low temperature can cause changes in the parameters of electronic components inside the controller, such as capacitors, resistors, and chips. The capacitance value of capacitors may change, resulting in a worse filtering effect and interference to the signals in the circuit. The resistance value of resistors may increase, affecting the current and voltage distribution in the circuit, and thus causing deviations in the controller's logical judgment, leading to inaccurate control of the electric hoist. - **Decline in Battery Performance**: If the controller is powered by a battery, low temperature will slow down the chemical reaction rate of the battery, increase the internal resistance of the battery, and reduce the output voltage and current. This will lead to an unstable power supply for the controller, and problems such as controller freezing and abnormal signal output may occur, affecting the normal operation and positioning accuracy of the electric hoist. - **Abnormal Display of LCD Screen**: Many controllers of stage electric hoists are equipped with LCD screens to display operation information and status. In a low - temperature environment, the movement speed of liquid crystal molecules slows down, and the response time prolongs. Phenomena such as blurred display, ghosting, and reduced contrast may occur, and even some displays may not work properly. It is difficult for operators to accurately obtain equipment information, thus affecting the operation and control of the electric hoist. - **Brittleness of Plastic Components**: The plastic components of the controller's housing and some internal parts will become brittle at low temperatures, with reduced toughness. This makes these components prone to cracking or even breaking after being subjected to slight external force impacts or long - term use, which may lead to problems such as short - circuits and poor contact in the internal circuit of the controller, affecting its normal operation. - **Solidification of Lubricating Oil**: If there are some mechanical transmission parts in the controller, such as the rotating shafts of potentiometers and gears, the lubricating oil used may solidify or increase in viscosity at low temperatures, increasing the frictional resistance between components. This will cause problems such as insensitive potentiometer adjustment and unsmooth gear transmission, affecting the precise control of the electric hoist by the controller. Solutions - **Heating and Thermal - insulation Measures**    - **Install Heating Devices**: Install heating devices such as heating sheets and heating wires inside or near the controller. Monitor the temperature in real - time through a temperature sensor. When the temperature is lower than the set value, start heating automatically to keep the internal temperature of the controller within an appropriate range.    - **Wrap with Thermal - insulation Materials**: Wrap the controller with thermal - insulation materials such as insulation cotton and foam plastic to reduce heat loss and play a thermal - insulation role, effectively preventing the controller from being too cold in a low - temperature environment. - **Select Components with Good Low - temperature Performance**    - **Replace Electronic components**: When designing or repairing the controller, select electronic components with good low - temperature characteristics, such as low - temperature capacitors, low - temperature resistors, and wide - temperature chips. These components can maintain relatively stable performance at low temperatures, improving the reliability of the controller in a low - temperature environment.    - **Use Low - temperature Batteries**: For controllers powered by batteries, select batteries with excellent low - temperature performance, such as some special models of lithium - ion batteries, or use battery packs with a heating function to ensure normal power supply at low temperatures. - **Optimize Design and Protection**    - **Improve Structural Design**: Optimize the structure of the controller to enhance its low - temperature resistance. For example, increase the thickness of plastic components, improve structural strength, and reduce the risk of brittleness and breakage. Reasonably arrange the circuit to avoid short - circuits or open - circuits caused by line shrinkage and deformation due to low temperatures.    - **Strengthen Sealing Protection**: Improve the sealing performance of the controller to prevent cold air, moisture, dust, etc. in the low - temperature environment from entering the controller. Sealing materials such as rubber seals and gaskets can be used to ensure that the controller can still operate normally in a harsh low - temperature environment. - **Pre - heating and Maintenance**    - **Pre - heating before Startup**: Before using the controller in a low - temperature environment, pre - heat it. You can turn on the power in advance and let the controller run in an unloaded state for a period of time to gradually warm up its internal components to the normal operating temperature before actual operation.

   - **Regular Maintenance and Inspection**: Strengthen the regular maintenance of the controller. Before the arrival of the low - temperature season, conduct a comprehensive inspection of the controller to check for problems such as component damage, aging, and good sealing. Replace problematic components in a timely manner to ensure the stable operation of the controller in a low - temperature environment.