Motor shield for the drainage device of a cooling or air-conditioning system

A motor shield installed in a drainage device of a cooling/air-conditioning system and covered on a motor of said drainage device over a cooling vane at said motor, the motor shield comprising:

• a shield body defining a chamber for accommodating said cooling vane of said motor, said shield body having a top wall thereof divided into an arched portion and a straight portion;
• a guide wall disposed in a top side in said shield body within said chamber, said guide wall having an arched segment and a straight segment connected to said straight segment of said guide wall;
• an airflow zone defined in said chamber inside said shield body in an interference relationship relative to said cooling vane of said motor and surrounded by said arched segment and said straight segment of said guide wall and said arched portion and said straight portion of said top wall of said shield body;
• a plurality of horizontally extending air outlets located on said arched portion of said top wall of said shield body;
• a plurality of vertically extending air outlets located on said straight portion of said top wall of said shield body;
• and
• at least one air inlet located on the periphery of said shield body.