The main components of the high and low temperature test chamber are refrigeration units, condensers, evaporators, and controllers. The main components play a crucial role, so everyone attaches great importance to their raw materials. However, at this time, most of them ignore their auxiliary components, or feel that the role of auxiliary components is not worth mentioning. Few people need to list the specific spare parts, so it is even less clear how these electronic components can be fully utilized in constant temperature and humidity test chambers.

1. Refrigeration unit: used for controlling the operation of refrigeration units, carrying out refrigeration cycles, and can be divided into single-phase and three-phase.

2. Fan motor: used for controller fan circulation steam body, providing heat conduction for heat exchangers, and available both indoors and outdoors. Single connected slip ring motor and single-phase motor.

3. Electric heater equipment: used to increase indoor air quality, divided into tubular and flocculent materials.

4. Timer: used to automatically control the system's timed startup.

5. DC contactor: used for breaking and connecting the motor of the refrigeration unit.

6. Leakage protector power switch: It can not only connect or disconnect the main circuit like other switches, but also has the function of detecting and distinguishing leakage current. When there is power loss or damage to the cable sheath in the main control circuit, the leakage protector power main switch can connect or disconnect the switch components of the main circuit based on the identification results. It can be combined with isolation switches and thermal relays to form a fully functional low-voltage switch electronic device.

7. Overtemperature protection equipment: Its function cannot be ignored. It can perform secondary maintenance on the temperature inside the box when the controller is not sensitive to temperature. When an alarm is triggered, it will be maintained and standby. The alarm will change relative to the test temperature, further enhancing the function of overtemperature maintenance. The basic concept is that when the total electrical flow rate of the broken wire exceeds the limit value, the temperature of the broken wire increases and the broken wire melts. When the heat value caused by the broken wire does not exceed its short-circuit capacity and the heat value released is balanced, the temperature of the broken wire cannot reach the melting temperature, making it difficult to break.

Small electronic components like this may seem insignificant in high and low temperature test chambers, but they also play a crucial role in the construction of a test chamber. Without these components, a test chamber cannot be used. In short, details determine success or failure, and they are infinitesimal. While mastering the test chamber, it is important to focus on its key aspects.

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