Device for driving a compressor and method for assembling the device

Patent metadata

Field	Value
Publication number	US-11095186-B2
Application number	US-201916416940-A
Country	US
Kind code	B2
Filing date	May 20, 2019
Priority date	May 24, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

Device for driving a compressor of a gaseous fluid having a rotor and a stator disposed extending along a common longitudinal axis. The stator comprises connection leads implemented as segments of conductor wires of coils. The device has a plug housing for receiving a connecting element which is electrically connected with a connection lead of a conductor wire with a plug connector. Support element is disposed on the stator with a receiving member for the plug housing. Receiving member comprises a connecting passage and plug housing is slid into the receiving member in such manner and disposed in the receiving member such that in each instance one connecting passage of the receiving member and the connecting element for receiving a plug connector correspond. Plug housing is filled at least in regions with potting compound and connected with support element under hermetic seal. Methods for assembling the device are provided.

First claim

It is claimed:

1. A device, in particular an electric motor, for driving a compressor of a gaseous fluid comprising a rotor and a stator which are disposed extending along a common longitudinal axis, wherein the stator comprises connection leads developed as segments of conductor wires of coils, comprising
at least one plug housing, wherein the at least one plug housing is for receiving at least one connecting element which is electrically connected with a connection lead of a conductor wire and implemented for the electric connection with a plug connector,
a support element disposed on the stator with at least one receiving member for the at least one plug housing, wherein the receiving member comprises at least one connection passage,
wherein the plug housing, which comprises in each instance at least one first chamber, one second chamber and one third chamber each, is slid into the receiving member and is disposed in the receiving member such that each connection passage of the receiving member and the connecting element for receiving a plug connector correspond with one another,
wherein only the first chamber is filled with a potting compound to hermetically seal the plug housing,
wherein the plug housing is developed of a first housing part and a second housing part,
wherein the connecting element is disposed between the first housing part and the second housing part such that it is fixed in position, and
wherein the first housing part is provided with appropriate shapings developed as receivers corresponding to the form of the connecting elements, and a flat bearing surface serves as a lower carrier component for the disposition of the second housing part as an upper cover component.

2. A device according to claim 1 , wherein the connecting element comprises a first connection member and a second connection member, wherein the first connection member is electrically connected with the connection lead of a conductor wire and the second connection member is implemented for the purpose of establishing an electrical connection with a plug connector.

3. A device according to claim 2 , wherein the plug housing is slid in a predetermined direction of motion into the receiving member and is disposed in the receiving member such that each connection passage of the receiving member and a second connection member of the connecting element for receiving a plug connector correspond with one another.

4. A device according to claim 1 , wherein the support element with the at least one receiving member for the at least one plug housing is implemented as a cohesive unit and integral component.

5. A device according to claim 1 , the housing parts are implemented such that they are connectable with one another under form closure.

6. A device according to claim 1 , wherein in each instance one connection lead of a conductor wire is disposed such that it penetrates into the first chamber as well as through the first chamber up into the second chamber.

7. A device according to claim 6 , wherein the connection lead of the conductor wire is inserted through a feedthrough implemented in the second housing part into the first chamber of the plug housing.

8. A device according to claim 1 , wherein the connecting element with the first connection member is disposed within the second chamber and with the second connection member is disposed within the third chamber.

9. A device according to claim 2 , wherein the second connection member is implemented in the form of an eye for the at least partial encompassment of the plug connector.

10. A device according to claim 1 , wherein the support element comprises a radially oriented annular surface and an axially oriented annular surface, wherein the radially oriented annular surface and the axially oriented annular surface are disposed such they are in contact at their outer side edges and are connected with one another.

11. A device according to claim 1 , wherein the support element comprises at least one guide member for guiding at least one connection lead of a conductor wire.

12. A device according to claim 11 , wherein a first guide member is implemented with a wall in the form of a circumferentially open sector of an axially oriented cylinder-form annular surface.

13. A device according to claim 12 , wherein the first guide member is connected at a radially oriented annular surface of the support element with the support element, wherein the at least one connection lead of the conductor wire is in contact in a transition region of the wall of the first guide member to the radial annular surface of the support element.

14. A device according to claim 12 , wherein at least one second guide member is developed in the form of a retaining bracket disposed on the wall of the first guide member such that it projects outwardly in the radial direction.

15. A device according to claim 14 , wherein the at least one second guide member is implemented on an upper end side of the wall of the first guide member, wherein the connection lead of the conductor wire is disposed between the second guide member and a radially oriented annular surface of the support element.

16. A device according to claim 15 , wherein within the radially oriented annular surface of support element a shaping is implemented oppositely to the at least one second guide member in the axial direction.

17. A method for assembling the device for driving a compressor of a gaseous fluid according to claim 1 comprising the following steps:
disposing a rotor and a stator on a common longitudinal axis, wherein the stator encompasses the rotor in the radial direction,
disposing a support element at a first end side, oriented in an axial direction, of the stator,
disposing at least one connecting element with a connection lead, electrically connected with the connecting element, of a conductor wire, or without the connection lead, on a first housing part of a plug housing,
disposing a second housing part of the plug housing onto the first housing part with the at least one connecting element disposed thereon as well as securing in position the second housing part on the first housing part such that the connecting element is disposed between the housing parts,
introducing at least one connection lead of a conductor wire through a feedthrough, developed in the second housing part, into the plug housing and connecting the connection lead of the conductor wire with the connecting element after the connecting element without connection lead has been disposed on the first housing part,
introducing the plug housing into a receiving member implemented on the support element and this way securing the plug housing in position on the support element, as well as filling a potting compound into at least one first chamber of the plug housing via the opening and in this manner connecting the plug housing with the support element well as hermetically sealing the plug housing.

18. A method according to claim 17 , wherein the plug housing with the at least one connection lead, electrically connected with the connecting element, of the conductor wire is slid in a predetermined direction of motion into the receiving member of the support element disposed on the stator and fixed in a predetermined final position.

Assignees

• Hanon Systems

Inventors

• Guntermann Bernd
• Walisko David
• Heinrichs Stephan

Classifications

• H02K3/50

  Fastening of winding heads, equalising connectors, or connections thereto · CPC title

• H02K5/225 Primary

  Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

• F04C29/0085

  Prime movers · CPC title

• F04B39/121

  Casings · CPC title

• H02K11/33

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