Embedded cooler for electro-hydraulic servo mechanism and cooling method

The invention relates to straight multi-tube coolers, in particular to an embedded cooler for an electro-hydraulic servo mechanism and a cooling method and belongs to the technical field of cooling of the electro-hydraulic servo mechanism. The cooler can be connected into a main structure of the electro-hydraulic servo mechanism in series or be embedded in the main structure of the electro-hydraulic servo mechanism, so that working medium oil of the electro-hydraulic servo mechanism is cooled. The cooler comprises a stainless steel shell, a front end plate, a baffle plate, a tube bundle, a rear end plate and supporting rods. According to the cooler and the cooling method, low-temperature gas is used as gas for acting of the servo mechanism, the hydraulic oil of the servo mechanism is cooled, cooling media do not need to be introduced from the outside any more, and the energy utilization rate is high; a reinforcing rib provided with an oil inlet channel and an oil outlet channel is integrally formed in the outer surface of the stainless steel shell, and thus the structure of the cooler is compact; in addition, the reinforcing rib can serve as channels, extra arrangement of pipeline channels and connector accessories is not needed, and thus the weight of the cooler is obviously reduced.