US 11,988,212 B2
Fluid transfer pump
Huang Jiabin, Dongguan (CN); and Jiang Xijun, Dongguan (CN)
Assigned to TECHTRONIC CORDLESS GP, Anderson, SC (US)
Filed by TECHTRONIC CORDLESS GP, Anderson, SC (US)
Filed on Jul. 29, 2022, as Appl. No. 17/877,299.
Claims priority of application No. 202121777240.4 (CN), filed on Aug. 2, 2021.
Prior Publication US 2023/0031253 A1, Feb. 2, 2023
Int. Cl. F04D 13/06 (2006.01); F04B 35/04 (2006.01); F04B 35/06 (2006.01); F04B 39/12 (2006.01); F04B 49/06 (2006.01); F04C 5/00 (2006.01); F04C 11/00 (2006.01); F04C 15/00 (2006.01)
CPC F04D 13/068 (2013.01) [F04B 35/04 (2013.01); F04B 35/06 (2013.01); F04B 39/121 (2013.01); F04B 49/06 (2013.01); F04C 5/00 (2013.01); F04C 11/008 (2013.01); F04C 15/00 (2013.01); F04D 13/06 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A fluid transfer pump, comprising:
a housing;
a pump unit, comprising an impeller;
an electric motor assembly, which is used to drive the impeller to rotate around an axis of the impeller; and
a power supply mounting base which is used to receive a power supply, wherein the power supply mounting base is arranged in a power supply compartment;
wherein the fluid transfer pump further comprises a speed change mechanism-arranged between the pump unit and the electric motor assembly, and
wherein the pump unit, the speed change mechanism, the electric motor assembly, and the power supply compartment are successively arrayed in an extension direction of the axis of the impeller; and the power supply can be guided into the power supply compartment in a mounting direction.