US 12,352,270 B2
Fluid circulator for heating or cooling systems
Alessio Guerrini, Bassano del Grappa (IT); and Daniele Sartor, San Martino di Lupari (IT)
Assigned to TACO ITALIA S.R.L., Sandrigo (IT)
Filed by TACO ITALIA S.R.L., Sandrigo (IT)
Filed on Dec. 14, 2022, as Appl. No. 18/081,678.
Claims priority of application No. 102021000031277 (IT), filed on Dec. 14, 2021.
Prior Publication US 2023/0228272 A1, Jul. 20, 2023
Int. Cl. F04D 13/06 (2006.01); F04D 29/42 (2006.01); H02K 3/02 (2006.01); H02K 3/44 (2006.01); H02K 3/50 (2006.01); H02K 5/22 (2006.01)
CPC F04D 13/0693 (2013.01) [F04D 29/4286 (2013.01); H02K 3/02 (2013.01); H02K 3/44 (2013.01); H02K 3/50 (2013.01); H02K 5/225 (2013.01); H02K 2203/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fluid circulator for heating or cooling systems, the fluid circulator comprising:
a pump body having a centrifugal impeller configured for moving fluid, the pump body including an inlet connection and an outlet connection disposed opposite one another and configured to be connected to a piping system for a heating or cooling system to form a fluid communication between the piping system and the impeller, the inlet connection configured to communicate the fluid from the piping system toward the centrifugal impeller and the outlet connection configured to communicate the fluid from the centrifugal impeller to the piping system;
an electric motor comprising at least one electrical winding and being configured to rotate the centrifugal impeller, wherein the pump body is disposed adjacent a first end of the electric motor;
a terminal box disposed adjacent a second end of the electric motor opposite the first end, the terminal box including an electronic control card configured to control an electric power supply of the electric motor;
at least one terminal of the electric power supply wiring of the electric motor, each terminal of the at least one terminal including a connecting element in contact with the at least one electrical winding of the electric motor so as to form at least one electrical connection between the connecting element and the at least one winding; and
a protection element sealingly enclosing the at least one electrical connection, the protection element comprising an overmolding of plastic material integrally made with a portion of the electric motor;
wherein the at least one electrical winding is made of aluminum or aluminum alloys and the connecting element of each terminal of the at least one terminal is made from a material that is not aluminum or aluminum alloys.