Cooling system capable of defrosting

A cooling system capable of defrosting, which is adapted for cooling a working fluid flowing in a pipe, comprising:

• a cooling device having a compressor provided with a motor, a condenser, an expander, an evaporator, a cooling channel, and a coolant capable of flowing in the cooling channel to pass through the compressor, the condenser, the expander and the evaporator;
• the coolant in the evaporator being functioned to thermally exchange with the working fluid flowing in the pipe and passing by the evaporator;
• a controller electrically connected with the cooling device for controlling a rotary speed of the motor of the compressor so as to control a temperature of the working fluid for adjusting a temperature of a device under test;
• and
• a defrosting unit having a switch, and a defrosting channel connected with the switch;
• after passing through the switch, the coolant being optionally fed to anyone of the cooling channel and the defrosting channel;
• by flowing through the defrosting channel, the coolant passing through the evaporator after passing through the compressor, so as to defrost the pipe.

A cooling system capable of defrosting, which is adapted for cooling a working fluid flowing in a pipe, comprising:

• a cooling device having a compressor, a condenser, an expander, an evaporator, a cooling channel, and a coolant capable of flowing in the cooling channel to pass through the compressor, the condenser, the expander and the evaporator;
• the coolant in the evaporator being functioned to thermally exchange with the working fluid;
• a controller electrically connected with the cooling device for controlling a temperature of the working fluid by controlling the cooling device;
• and
• a defrosting unit having a defrosting channel;
• by flowing through the defrosting channel, the coolant passing through the evaporator after passing through the compressor, so as to defrost the pipe.