| 摘要 |
Disclosed are a motor pump for hot water that is used in a system for supplying hot water having a temperature of 70°C or more, and a hot water supply apparatus using the same. The motor pump for hot water comprises: a motor pump body that is installed in a chamber filled with hot water and includes a coil fixing part, a permanent magnet rotating part located in the coil fixing part to rotate according to a current flowing in the coil fixing part, a rotating impeller that rotates while being coupled to the permanent magnet rotating part and makes water flow in the rotating direction, a sensor that detects the motion of the permanent magnet rotating part, and an in-body printed circuit board on which the sensor is mounted and which transmits power to the coil fixing part; an external drive circuit that is installed on the exterior of the chamber and has an electronic component mounted thereon for controlling the power supply to the coil fixing part according to a detection signal of the sensor; and a power and signal transmission line that electrically connects the in-body printed circuit board and the external drive circuit, supplies motor drive power to the coil fixing part, and transmits a signal of the sensor. |
