Electric compressor system for vehicle

An electric compressor system for a vehicle, the electric compressor system comprising:

• an electric motor having a rotor and a motor shaft which selectively rotate in a first rotation direction or a second rotation direction;
• an external rotation shaft extending from the motor shaft of the electric motor;
• a first compressor unit connected to the external rotation shaft and configured to selectively compress a first fluid according to the rotation direction of the external rotation shaft;
• and
• a second compressor unit connected to the external rotation shaft and configured to selectively compress a second fluid according to the rotation direction of the external rotation shaft,
• wherein the first compressor unit and the second compressor unit are sequentially arranged on the external rotation shaft,
• the first compressor unit is fluidly connected to a first fluid system,
• the second compressor unit is fluidly connected to a second fluid system,
• the first compressor unit includes a first housing having a first compression cavity, and a first compression element compressing the first fluid received in the first compression cavity, and
• the first compression element is selectively connected to or disconnected from the external rotation shaft through a first one-way clutch.