hefei rishang electrical appliance co.,ltd
Hefei Rishang Electric Appliance Co., Ltd. Founded in 1999. Covering an area more than 53, 000 square meters, building area of 20, 000 square meters, The company is High-tech enterprises, specialized in development and production of micro motor, drain control motor, water level switch sensor, electronic wire harness, electronic switch and so on. Which used in home appliances products, such as Air conditioner, Washing machine, Refrigerator, Microwave oven, Computer, etc. We mainly offer support and supply to the major home appliance manufacturers, including Midea, Whirpool, Little Swan, Haier, Sharp, Daewoo, Toshiba etc.
The company set up with three functional department, management department, finance department, quality department; Four busniss departments, marketing department, purchasing department, technology department, manufacturing department, which including electrical appliances factory and wiring harness factory. Currently there are more than 700 workers in our company, among them, more than 100 are administrators and professional technicians.
The company set up with three functional department, management department, finance department, quality department; Four busniss departments, marketing department, purchasing department, technology department, manufacturing department, which including electrical appliances factory and wiring harness factory. Currently there are more than 700 workers in our company, among them, more than 100 are administrators and professional technicians.
Team-Kontakte
Empfohlene Produkte
electronic pressure sensor
①Function: The water level sensor coordinated with PCB of the WM, to control the water level height of the washing machine,
②Principle: The coil inductance L (enameled wire winding), capacitor C in the sensor, and the chip LC4069 and its surrounding resistors and capacitors in the WM pcb form an oscillation circuit. The oscillation circuit schematic is shown below
③As the water level in the WM changes, the air in the air duct will generate pressure, which is transmitted to the magnetic core (soft magnetic) through the diaphragm and bracket. The magnetic core will displace inside the charged coil, causing a change in the inductance of the coil, thereby causing a change in frequency in the LC circuit. The peripheral circuit on the PCB collects and processes this frequency signal in real time to determine the high or low water level in the bucket and decide what working mode to adopt.
②Principle: The coil inductance L (enameled wire winding), capacitor C in the sensor, and the chip LC4069 and its surrounding resistors and capacitors in the WM pcb form an oscillation circuit. The oscillation circuit schematic is shown below
③As the water level in the WM changes, the air in the air duct will generate pressure, which is transmitted to the magnetic core (soft magnetic) through the diaphragm and bracket. The magnetic core will displace inside the charged coil, causing a change in the inductance of the coil, thereby causing a change in frequency in the LC circuit. The peripheral circuit on the PCB collects and processes this frequency signal in real time to determine the high or low water level in the bucket and decide what working mode to adopt.