Pump unit

Patent metadata

Field	Value
Publication number	US-9624931-B2
Application number	US-201214369034-A
Country	US
Kind code	B2
Filing date	Dec 14, 2012
Priority date	Dec 27, 2011
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

A pump assembly with an electric drive motor and with an electronics housing ( 10 ). The electronics housing in which at least one first electrical circuit board ( 14 ) is arranged. On the circuit board electrical contacts ( 18 ) are formed. Via the electrical contacts, at least one electronic component ( 16 ), in the inside of the electronics housing ( 10 ) may be programmed. At least one opening ( 22 ), through which the electrical contacts ( 18 ) on the circuit board ( 14 ) are contactable from the outside, is formed on a wall ( 20 ) of the electronics housing ( 10 ).

First claim

The invention claimed is:

1. A pump assembly comprising:
an electric drive motor;
at least one electrical component;
at least one first electrical circuit board; and
an electronics housing with an inside in which the at least one first electrical circuit board is arranged, on which circuit board electrical contacts are formed, via which electrical contacts the at least one electronic component, in the inside of the electronics housing, may be programmed, said circuit board electrical contacts being arranged completely inside of the electronics housing, wherein at least one opening, through which the electrical contacts on the circuit board are contactable from an outside, is formed in a wall of the electronics housing.

2. A pump assembly according to claim 1 , wherein the wall of the electronics housing, in which the at least one opening is formed, is an outer wall which is away from the electrical drive motor.

3. A pump assembly according to claim 1 , further comprising one of display elements and operating elements arranged on the wall of the electronics housing, in which the at least one opening is formed.

4. A pump assembly according to claim 1 , further comprising at least one second circuit board arranged in the inside of the electronics housing below the wall, said at least one second circuit board comprising a recess at least in a region which is situated below the at least one opening in the wall.

5. A pump assembly according to claim 1 , wherein the electronics housing is applied onto an axial face-end of a stator housing of the electrical drive motor.

6. A pump assembly according to claim 1 , wherein the wall of the electronics housing, in which the at least one opening is formed, is an axial end-wall of the electronics housing.

7. A pump assembly according to claim 1 , wherein several openings are formed in the wall.

8. A pump assembly according to claim 1 , further comprising a closure element is present, with which the at least one opening may be closed.

9. A pump assembly according to claim 8 , wherein the closure element is releasable from the wall.

10. A pump assembly according to claim 8 , wherein one of:
the closure element is designed for bonding to the wall; and
the closure element is bonded to the wall.

11. A pump assembly according to claim 8 , wherein the closure element is formed by a cover film covering the wall on an outer side.

12. A pump assembly according to claim 11 , wherein the cover film carries an inscription.

13. A pump assembly according to claim 11 , further comprising at least one of display elements and operating elements arranged on the wall of the electronics housing, in which the at least one opening is formed wherein the cover film covers the at least one of display elements and operating elements.

14. A pump assembly according to claim 1 , wherein at least a part of a frequency converter for controlling the electrical drive motor is arranged in the electronics housing.

15. A pump assembly according to claim 1 , wherein the electrical contacts are provided exclusively for a basic factory programming of the electronic component and have no further communication function, wherein several openings are formed in the wall, wherein in each case an electrical contact, on the circuit board, is contactable from the outside, respectively through each of the openings.

16. A pump assembly according to claim 1 , wherein the pump assembly is designed as a circulation pump assembly with a wet-running electric drive motor.

17. A pump assembly comprising:
an electric drive motor;
an electrical component;
an electrical circuit board comprising circuit board electrical contacts;
a cover comprising at least one cover opening;
an electronics housing, said cover closing one end of the electronics housing, the cover and the electronics housing defining an interior space, the electrical circuit board and the circuit board electrical contacts being arranged in the interior space, the electrical component being programmable in the interior space via at least the circuit board electrical contacts, the circuit board electrical contacts being completely arranged between the cover and the electrical circuit board, wherein the circuit board electrical contacts are contactable from an outside via the at least one cover opening.

18. A pump assembly according to claim 17 , further comprising at least one second circuit board arranged in the interior space below the cover, said at least one second circuit board comprising a recess at least in a region which is situated below the at least one cover opening.

19. A pump assembly comprising:
an electric drive motor;
an electrical component;
an electrical circuit board comprising circuit board electrical contacts;
a cover comprising at least one cover opening;
an electronics housing, said cover closing one end of the electronics housing, the cover and the electronics housing defining an interior space, each portion of the electrical circuit board and each portion of the circuit board electrical contacts being completely arranged in the interior space, the electrical component being programmable in the interior space via at least the circuit board electrical contacts, wherein the circuit board electrical contacts are contactable from an outside via the at least one cover opening.

20. A pump assembly according to claim 19 , further comprising at least one second circuit board arranged in the interior space below the cover, said at least one second circuit board comprising a recess at least in a region which is situated below the at least one cover opening.

Assignees

• Grundfos Holding As

Inventors

• Moos Allan

Classifications

• H02K11/33

  Drive circuits, e.g. power electronics (H02K11/38 takes precedence) · CPC title

• F04D13/06 Primary

  the pump being electrically driven · CPC title

• F04D13/064 Primary

  Details of the magnetic circuit · CPC title