LIN-Controlled Electronic Expansion Valve

Application: Automotive Thermal Management Systems; Primary Function: The air conditioning controller (ECU) sends a LIN digital signal to the control board to drive the rotation of the rotor assembly. Through lead screw and nut transmission, the rotary motion of the rotor is converted into axial linear movement of the valve needle, thereby adjusting the flow area of the valve orifice and regulating refrigerant flow.

 Product Features

1. Synchronization correction, overvoltage, undervoltage, overtemperature protection, cross-protection, and no-load detection;

2. Supports firmware updates via LIN bus;

3. Supports slave node configuration;

4. Supports real-time stall detection of the valve needle.

Technical Specifications:

1. Compatible refrigerants: R134a / R1234yf;                

2. Rated capacity: 0.7 Ton to 5 Ton;

3. Ambient temperature range: -40°C to 120°C;                

4. Operating voltage: 12V/24V;

5. Maximum operating pressure differential: >2.5 MPa @ 9V;               

6. External leakage: < 1.5 g/y @ 2.0 MPa;

7. Internal leakage: <300 mL/min (@ 1.0 MPa AP air);

8. Communication protocol: LIN control;

9. Electrical connector: 3-pin / 4-pin;

10. Stepper motor pole count: 20-pole / 24-pole;

11. Ingress protection rating: IP6K9K.