Hairpin connecting device and hairpin winding motor including the same

Patent metadata

Field	Value
Publication number	US-9847683-B2
Application number	US-201213713358-A
Country	US
Kind code	B2
Filing date	Dec 13, 2012
Priority date	Sep 20, 2012
Publication date	Dec 19, 2017
Grant date	Dec 19, 2017

Abstract

Disclosed are a hairpin connecting device and a hairpin winding motor including the same. An exemplary embodiment of the present invention may provide a hairpin connecting device including: a cover part shaped like a circular loop fastened to a leg side of a stator core; and a plurality of connection caps arranged inside the cover part in a circumference direction and configured to electrically connect connected ends of respective hairpins exposed to the leg side.

First claim

What is claimed is:

1. A hairpin connecting device, comprising:
an insulation plate;
a stator core comprising radial slots;
hairpins arranged in the radial slots and forming an annular pattern;
an annular cover comprising a circular groove; and
caps disposed in the circular groove and completely covering adjacent pairs of tips of the hairpins,
wherein the caps comprise inner caps disposed in an inner row, and in contact with an inner circumferential surface of the circular groove and the insulation plate, and outer caps disposed in an outer row, and in contact with an outer circumferential surface of the circular groove and the insulation plate,
wherein the insulation plate is integrally formed with the cover, and
wherein the each of the hairpins comprises a bend at which a first surface of the hairpin faces a second surface of the hairpin.

2. The hairpin connecting device of claim 1 , wherein the cover is an electrical insulator, the hairpins are electrical conductors, and the caps are electrical conductors.

3. The hairpin connecting device of claim 1 , wherein the cover shields the hairpins.

4. A hairpin winding motor comprising the hairpin connecting device of claim 1 .

5. The hairpin connecting device of claim 1 , wherein each of the hairpins comprises
a first end portion extending in a first direction,
a first exposed portion extending inwardly from the end portion,
a first accommodated portion extending from the first exposed portion in the first direction, and
a first head portion extending inwardly from the first accommodated portion.

6. The hairpin connecting device of claim 5 , wherein the each of the hairpins further comprises
a second end portion extending in the first direction,
a second exposed portion extending inwardly towards the first exposed portion from the second end portion,
a second accommodated portion extending from the second exposed portion in the first direction, and
a second head portion extending inwardly to meet the first head portion.

7. The hairpin connecting device of claim 6 , wherein
the hairpins are integrally formed, and
the bend is at a location where the first head portion meets the second head portion.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Jung Dae Sung

Classifications

• H02K11/0094

  Structural association with other electrical or electronic devices · CPC title

• H02K3/28 Primary

  Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) · CPC title

• H02K15/0062

  Electricity · mapped topic

• H02K3/12

  arranged in slots · CPC title

• H02K15/32 Primary

  Manufacture of terminal arrangements; Connecting the terminals to external circuits · CPC title