Refrigerator PCBA
1 product profiles:
This series of products are mainly used in the control of the refrigerator, and it is applied to the frequency conversion and frequency control of the two temperature zone, three temperature zone and three temperature zone. The man-machine interface is friendly, the control unit is optional, according to the request of the customer to carry on the design.
2 technical parameters:
2.1. voltage range: working voltage range: 90V ~ 265VAC.
2.2. rated frequency: 50/60Hz
2.3. the use of the environment: -40 C ~75 C (sealed in the box, no air convection heat), relative humidity: 45 ~ 90%;
2.4. system operating temperature range: freezing room: ~40 C -40 C; variable greenhouse: ~40 C -40 C; cold storage Room: ~40 C -40 C
2.5. refrigerator storage temperature range: freezing room: ~40 C -35 C; change the greenhouse: ~40 C -25 C; cold storage Room: ~40 C -15 C
3 function profile
3.1. each function module, independent of each other, there is a separate micro processing, mutual communication through the high reliability of the serial communication, the connection line less. Can meet the customer's different structure design requirements.
3.2. induction key parts can be used in our patent circuit (Patent No. 200610062326.2), low cost, high reliability, good consistency.
3.3. touch screen using four or five wire resistance screen, liquid crystal can be used STN and TFT, according to the different grades of the product selection of different programs.
3.4. the power supply board part adopts the switch power supply, the wide voltage range design, the extremely low standby power consumption, the efficiency is high, the weight is light.
3.5. with over voltage, under voltage, short circuit protection function;
3.6. power supply board can provide enough power to meet some low voltage load of power supply such as: lighting LED, fan...
3.7. power supply board with microprocessor control, according to user needs, in addition to the basic function of the individual design. And set aside the communication port, can be online update procedures and other communication needs.
3.8. variable frequency drive circuit and power supply circuit optocoupler isolation communication, safe and reliable.
3.9. electronic board of the main components are CQC, UL, VDE certificate, can meet the REACH, ROHS instructions.
