Hot water circulation pump with improved air cooling effect

摘要

The present invention relates to a hot water circulation pump that is adopted in the boiler system to circulate hot water, to improve the air-cooling effect, and in particular, the blade is radially formed on the lower side of the drive magnet housing and the upper side of the rotor. And to improve the air-cooling effect through the distribution hole in the lower side of the partition plate and the motor housing, when the power is input to the stator 10, the rotor 11 is rotated and the drive magnet housing provided with a drive magnet 13 When the 14 rotates, the impeller 4 is rotated by the rotation of the driven magnet 5 interlocked with the driving magnet 13 to circulate the hot water introduced through the inlet 8 to the outlet 9. In the discharging, the plurality of distribution holes 17 are distributed at equal intervals in the splitter plate 16, and the plurality of distribution holes 20 are formed in a circular shape at equal intervals on the bottom surface of the motor housing 3. And In addition, the plurality of vanes 15 and 18 are radially integrally formed on the bottom surface of the driving magnet housing 14 and the upper side of the rotor 11 to maximize the air cooling effect by circulating the outside air and pump The durability of the hot water circulation pump can be greatly improved.