Dynamoelectric machine stator assembly with multi-barrel connection insulator

• US 3,912,957 A
• Filed: 12/27/1973
• Issued: 10/14/1975
• Est. Priority Date: 12/27/1973
• Status: Expired due to Term

• Current Assignee: Hugh B. Reynolds
• Original Assignee: Hugh B. Reynolds
• Inventors: Reynolds, Hugh B.
• Primary Examiner(s): Skudy, R.
• Application Number:
  US05/428,844
• Time in Patent Office: 656 Days
• Field of Search: 310/214,180,215,184,260,194,270,210,71,214,45,208,179,271 29/606 174/88,88A,88B,88C 138/128
• US Class Current: 310/71
• CPC Class Codes: H02K 3/38 around winding heads, equalising connectors, or connections thereto
• CPC Class Codes: H02K 3/50 Fastening of winding heads, equalising connectors, or connections thereto

Abstract

Single body of insulation for insulating one or more external lead wire connections in an area of end turn region having a paucity of end turns. Insulator may be used to anchor lead wires and may be fabricated of a sheet insulating material, for example by employing seam welding process. Insulator material defines a plurality of axially extending insulating compartments that receive external lead wires and winding tap wires. Each compartment is laterally separated from at least one adjacent compartment by at least one layer of insulating material. Insulator may comprise a plurality of independent tubular sleeves held together by a common exterior tubular sleeve. Insulator may include plurality of insulating compartments that are defined by a single or common sheet of insulating material.

Claims

1. A stator assembly for use in a dynamoelectric machine comprising a magnetic core having coil accommodating slots therein and at least one core end face;

winding means comprising at least two coils of winding material having side turn portions disposed in selected slots of the core and having end turn portions extending beyond the at least one core end face;

at least one tap wire extending from at least two coils;

at least two lead wires with a first lead wire portion connected to a first tap wire portion and a second lead wire portion connected to a second tap wire portion; and

a multi-connection protecting insulator for insulating the connected portions of the lead wires and tap wires;

said multi-connection protecting insulator comprising insulating material arranged to define a plurality of longitudinally extending insulating compartments;

the connected portions of the first tap wire and first lead wire being disposed in a first one of the compartments, and the connected portions of a second tap wire a second lead wire being disposed in a second one of the compartments;

said multi-connection protecting insulator being formed of a sheet insulating material, and the first and second compartments being laterally separated from one another;

the insulator includes a first tubular sleeve, and at least two insulating compartments are defined by second and third separate tubular sleeves, and the second and third separate tubular sleeves are disposed within the first tubular sleeve.

2. The invention of claim 1 wherein the first tubular sleeve is formed of a heat shrinkable material.

3. A stator assembly for use in a dynamoelectric machine comprising a magnetic core having coil accommodating slots therein and at least one core end face;

winding means comprising at least two coils of winding material having side turn portions disposed in selected slots of the core and having end turn portions extending beyond the at least one core end face;

at least one tap wire extending from each of the at least two coils;

at least two lead wires with a first lead wire portion connected to a first tap wire portion and a second lead wire portion connected to a second tap wire portion; and

a multi-connection protecting insulator for insulating the connected portions of the lead wires and tap wires;

said multi-connection protecting insulator comprising insulating material arranged to define a plurality of longitudinally extending insulating compartments;

the connected portions of a first tap wire and first lead wire being disposed in a first one of the compartments, and the connected portions of a second tap wire and second lead wire being disposed in a second one of the compartments;

said multi-connection protecting insulator being formed of sheet insulating material, and the first and second compartments being laterally separated from one another;

the plurality of insulating compartments are defined by a single sheet of insulating material.

4. A stator assembly for use in a dynamoelectric machine comprising a magnetic core having coil accommodating slots therein and at least one core end face;

winding means comprising at least two coils of winding material having side turn portions disposed in selected slots of the core and having end turn portions extending beyond the at least one core end face;

at least one tap wire extending froM each of the at least two coils;

at least two lead wires with a first lead wire portion connected to a first tap wire portion and a second lead wire portion connected to a second tap wire portion; and

a multi-connection protecting insulator for insulating the connected portions of the lead wires and tap wires;

said multi-connection protecting insulator comprising insulating material arranged to define a plurality of longitudinally extending insulating compartments;

the connected portions of a first tap wire and first lead wire being disposed in a first one of the compartments, and the connected portions of a second tap wire and second lead wire being disposed in a second one of the compartments;

said multi-connection protecting insulator being formed of sheet insulating material, and the first and second compartments being laterally separated from one another;

the plurality of insulating compartments being defined by a single sheet of insulating material.