Rotary electric machine

Patent metadata

Field	Value
Publication number	US-10476345-B2
Application number	US-201916380309-A
Country	US
Kind code	B2
Filing date	Apr 10, 2019
Priority date	Jan 26, 2013
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

A rotary electric machine having a stator and a rotor, in addition to an electric control device and a connection device which comprises at least one coupling element for electrically connecting the control device to one or several electrical lines and a mass element provided to connect to an electric mass potential. In order to improve the machine with respect to electromagnetic interference, the stator is connected to the mass element by a contact bridge which has a first securing section and a second securing section in addition to a bridge element arranged between the securing sections and includes a single-piece spring steel sheet which is at least partially sinuous.

First claim

What is claimed is:

1. A rotary electric machine comprising:
a stator;
a rotor;
an electrical control device;
a connector, which has at least one coupling element for electrically connecting the control device to one or more electrical lines; and
a ground element connected to an electrical ground potential,
wherein the stator is connected to the ground element via a contact bridge that comprises a first securing section, a second securing section, a bridge element arranged between the first securing section and second securing section, the bridge element being a single-piece spring sheet formed at least partially meander-shaped, and
wherein at least one of the first securing section or the second securing section have a continuous clamping opening,
wherein a clamping pin is adapted to be clamped in the continuous clamping opening, and
wherein the continuous clamping opening is a straight clamping slot, wherein at both ends of the clamping slot, in each case, at least one separation slot connected to the clamping slot is provided, and wherein, in each case, a bendable edge strip is formed between the separation slots.

2. The rotary electric machine according to claim 1 , wherein the contact bridge has a resilient contact arm to form an electrical pressure contact with a counter contact.

3. The rotary electric machine according to claim 2 , wherein the resilient contact arm extends from a distal end of the second securing section of the contact bridge, such that the second securing section is positioned between the resilient contact arm and the bridge element of the contact bridge.

4. The rotary electric machine according to claim 3 , wherein a free end of the resilient contact arm includes contact tips.

5. The rotary electric machine according to claim 1 , wherein the separation slots extend perpendicular to the continuous clamping opening.

6. The rotary electric machine according to claim 1 , wherein the bendable edge strip bends out perpendicular to a plane of the at least one of the first securing section or the second securing section.

7. The rotary electric machine according to claim 3 , wherein both the first securing section and the second securing section have the continuous clamping opening.

Assignees

• Brose Fahrzeugteile Gmbh & Co Kg
• Brose Fahrzeugteile

Inventors

• Berkouk Maurad
• Labat Sebastien
• Fournier Eric

Classifications

• H02K5/225 Primary

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

• H02K11/40

  Structural association with grounding devices · CPC title

• H02K11/33

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

• H02K11/01

  for shielding from electromagnetic fields {, i.e. structural association with shields} (means for preventing or reducing eddy-current losses in the winding heads by shielding H02K3/42) · CPC title

• H01R13/02

  Contact members · CPC title