IP Library Granted Patent US 8,122,590
Granted Patent B2
US 8,122,590 · App. 13/090,919 · Granted Feb 28, 2012

Manufacturing methods for a triple layer winding pattern

Assignee: Tesla Motors, Inc.
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Quick Facts
Patent No.
US 8,122,590
App. No.
13/090,919
Granted
Feb 28, 2012
Kind
B2
Abstract

A method of manufacturing a triple-winding layer arrangement for a three-phase, four pole motor is provided.

Claims (28)

1. A method of manufacturing a three-phase, four pole electric motor, the method comprising the steps of:

winding a first first phase coil group and a second first phase coil group from a first wire, wherein said first and second first phase coil groups form a first first phase pole pair;

inserting said first and second first phase coil groups into a first lower portion of a plurality of stator slots;

winding a third first phase coil group and a fourth first phase coil group from a second wire, wherein said third and fourth first phase coil groups form a second first phase pole pair;

inserting said third and fourth first phase coil groups into a second lower portion of said plurality of stator slots;

winding a first second phase coil group and a second second phase coil group from a third wire, wherein said first and second second phase coil groups form a first second phase pole pair;

inserting a first half of said first second phase coil group and a first half of said second second phase coil group into a third lower portion of said plurality of stator slots;

inserting a second half of said first second phase coil group and a second half of said second second phase coil group into a first upper portion of said plurality of stator slots;

winding a third second phase coil group and a fourth second phase coil group from a fourth wire, wherein said third and fourth second phase coil groups form a second second phase pole pair;

inserting a first half of said third second phase coil group and a first half of said fourth second phase coil group into a fourth lower portion of said plurality of stator slots;

inserting a second half of said third second phase coil group and a second half of said fourth second phase coil group into a second upper portion of said plurality of stator slots;

winding a first third phase coil group and a second third phase coil group from a fifth wire, wherein said first and second third phase coil groups form a first third phase pole pair;

inserting said first and second third phase coil groups into a third upper portion of said plurality of stator slots;

winding a third third phase coil group and a fourth third phase coil group from a sixth wire, wherein said third and fourth third phase coil groups form a second third phase pole pair; and

inserting said third and fourth third phase coil groups into a fourth upper portion of said plurality of stator slots.

2. The method of claim 1 , further comprising the steps of selecting a first wire bundle for said first wire, selecting a second wire bundle for said second wire, selecting a third wire bundle for said third wire, selecting a fourth wire bundle for said fourth wire, selecting a fifth wire bundle for said fifth wire, and selecting a sixth wire bundle for said sixth wire.

3. The method of claim 1 , further comprising the steps of:

forming a first inter-pole connection between said first first phase coil group and said third first phase coil group;

forming a second inter-pole connection between said first second phase coil group and said third second phase coil group; and

forming a third inter-pole connection between said first third phase coil group and said third third phase coil group.

4. The method of claim 1 , further comprising the steps of:

using a first continuous wire for said first wire and said second wire;

automatically forming a first inter-pole connection between said first first phase coil group and said third first phase coil group via said first continuous wire;

using a second continuous wire for said third wire and said fourth wire;

automatically forming a second inter-pole connection between said first second phase coil group and said third second phase coil group via said second continuous wire;

using a third continuous wire for said fifth wire and said sixth wire; and

automatically forming a third inter-pole connection between said first third phase coil group and said third third phase coil group via said third continuous wire.

5. The method of claim 4 , further comprising the steps of selecting a first wire bundle for said first continuous wire, selecting a second wire bundle for said second continuous wire, and selecting a third wire bundle for said third continuous wire.

Assignments (1)
SECURITY AGREEMENT Recorded Jun 27, 2011
From: TESLA MOTORS, INC.
To: MIDLAND LOAN SERVICES, INC.
Reel/Frame 026509/0709 →
Continuity (3)
Division 12707949 · Feb 18, 2010
Continuation 12707699 · Feb 18, 2010
Related Publication 20110197431A1 · Aug 18, 2011