With the continuous development of refrigeration technology, the application scope of ice maker, as a device for producing ice cubes, has been extended from commercial places to homes and offices. In order to ensure the efficiency and stability of the ice-making process, temperature monitoring and temperature control of ice maker are key. EXSENSE Electronics Technology Co., Ltd. suggests adding NTC thermistor to help the ice maker maintain a high level of finished output by using its sensitive characteristics to temperature changes.

During the working process of the ice maker, the water temperature is too high or too low, which will cause the quality of the ice cubes to deteriorate, and even affect its normal operation. NTC thermistor provides precise temperature feedback to the ice-making system by measuring the water temperature and comparing it to a preset threshold. The NTC is generally installed on the side of the ice tray and maintains a certain gap with the ice tray. As the thickness of the ice cube gradually increases and approaches the thermistor, the temperature it detects will gradually decrease. When the ice reaches the specified thickness, which means that the temperature detected by the thermistor drops to a preset threshold, it sends a signal to the controller to indicate that the ice has formed. The controller then stops the cooling process and starts the heating program to remove the ice cubes from the ice tray. Compared to traditional mechanical control, temperature monitoring with NTC thermistor can more accurately determine the actual thickness of the ice cubes, thus improving the consistency and quality of the ice cubes in each ice making cycle.

In addition to assisting the ice maker in efficient ice production, NTC is also involved in the temperature control of the entire ice-making process:

First, use NTC thermistor to adjust the temperature, speed or direction of the water flow to ensure the rate and uniformity of ice formation. The temperature of the ice-making water is measured by a thermistor and compared to a preset temperature value, and when the water temperature is higher than the preset value, the ice maker pauses the ice-making and cools it. When the water temperature drops below the preset value, the ice maker resumes ice making. This helps to avoid problems such as ice sticking, non-forming, etc., thus improving the quality of ice production.

Second, use NTC thermistor to determine faults, monitor abnormal temperature changes, and find potential problems in a timely manner. The control system of the ice maker can automatically adjust the operating parameters of the refrigeration system, such as the working frequency of the compressor, the fan speed of the condenser, etc., according to the temperature data provided by the NTC, so as to achieve more accurate temperature control and ensure that the ice maker operates at the best efficiency.

According to the internal structure of the ice maker, EXSENSE Electronics recommends the LT series epoxy encapsulated NTC thermistor. Its head size is small and the temperature response is faster, which is conducive to improving the stability and efficiency of the ice-making process. In addition, the high accuracy of the thermistor ensures more accurate temperature monitoring during the ice-making process. moreover, the high cost performance of epoxy encapsulated NTC thermistor can reduce the manufacturing cost of ice maker and achieve the effect of effective cost reduction.