| 摘要 |
PROBLEM TO BE SOLVED: To provide a cabinet type water feeding device which air-cools motors and an inverter and has high cooling performance. SOLUTION: Two pairs of an outer fan type cooling motor and a pump are arranged at the right portion of the upper section in a cabinet in an upright posture, with the motors located above and the pumps below. A pressure tank is arranged on the left side, pipes and valves are arranged at the lower section in the cabinet, and a control board including a forced air-cooled inverter and a control apparatus is arranged at the uppermost section in the cabinet. A clockwise circulating flow is generated in the cabinet by the outer fans of the outer fan type cooling motors and the cooling fan of the forced air-cooled inverter, and the upper heat is circulated downward, cooled by the pipes and valves, then circulated upward.
|
