Discharge pump for air conditioner

The invention relates to a discharge pump for an air conditioner, utilizing the DC brushless motor of an in-built adjuster, improving the heat radiating effect of the DC brushless motor, realizing miniaturization, controlling the water discharge at the necessary minimum degree, and achieving low noise and vibration. A stator circuit part (2A) and a fixation part (2B) form a motor part (2) fixed to the pump part (1). A stator (22), a circuit board (23), a motor-controlling IC (24) and an adjuster circuit part (25) are integrally formed inside the resin molding part (21) (the motor housing). The rotor and stator inside the through hole of the resin molding part form a three-phase DC brushless motor. The resin molding part is made of BMC resin having high-thermal conductivity, respectively attached to the conductor part of the adjuster circuit part, the motor-controlling IC, and the circuit board. The heat generated by the adjuster circuit part and the motor-controlling IC is radiated outward via the resin moldi