Heat circulation pump
US9543803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2012 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Jun 30, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/33
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A heat circulation pump includes a pump housing (1) with a pump impeller driven by an electric motor. The electric motor is arranged in a motor housing (8) connected to the pump housing (1). A plastic terminal box (12) is fixed to the motor housing (8) and houses electric and/or electronic components of the engine control and electrically connects the motor, a ground contact arranged on the motor housing (8), and a plug or a socket (34) arranged on the outside of the terminal box (12). The ground contact arranged on the motor housing is connected in an electrically conductive manner to a ground contact of the plug or socket (34) and to at least one conductor inside the terminal box (12). The electric connection between the ground contact arranged on the motor housing (8) and the ground contact of the plug or socket (34) is arranged outside of the terminal box (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.