Coolant-circulation cooling device for computer servo

A coolant-circulation cooling device for at least one computer servo, comprising a compressor, a condenser, a coolant reservoir, an evaporation coil, and a piping arrangement, characterized in that:

• the coolant reservoir is provided with the evaporation coil in a wound condition and forms an outlet opening and an inlet opening which are respectively connected to a coolant supply manifold and a coolant drain manifold to thus connect to a cooling head via the coolant supply manifold and the coolant drain manifold for direct coupling with a heat generation element of each computer servo, the piping arrangement being provided with a pumping device to drive and circulate a coolant through the piping arrangement to enter the cooling head through an inlet tube of the cooling head and then returning back to the coolant reservoir through an outlet tube of the cooling head.