US3821846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a motor stator assembly
Assignee: SMITH A CORP US
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Filing: 1973-01-10
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Granted: 1974-07-02
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Expires: 1993-01-10
Abstract
Abstract A method of manufacturing a motor stator assembly is disclosed including the steps of stacking and aligning prepared laminations, inserting slot insulators to loosely confine the laminations, inserting windings and slot wedges to further confine the laminations along with the slot insulators, forming, connecting, insulating and lacing the windings and particularly the end turns, placing the wound laminations over an aligning arbor, bolting the wound laminations to an assembly ring, checking the face squareness and bolt torque, heating the compressed laminations at a temperature of 320* plus or minus 10* Fahrenheit for 1 1/2 hours, placing an enclosure or tube over the winding output leads, conducting compressed air through the tube, dipping or immersing the wound laminations into an adhesive bonding material to permit bonding liquid to completely penetrate between the laminations, removing the enclosure or tube along with excessive bonding material, curing the bonding material to permanently bond the laminations, and removing the bonded, wound laminations from the assembly ring.
Inventors
- 👤 B Pleiss
- 👤 Krosigk S Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:40
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/12; H02K15/02; H02K15/021; H02K15/10; H02K15/08; H02K15/085; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
141 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving slot insulators and windings which are held together by an adhesive bonding material, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting slot insulators into the winding slots to loosely confine the laminations, inserting the windings within the insulated winding slots to confine the laminations along with the slot insulators, clamping the plurality of loosely confined, wound laminations under a predetermined axial compression at a plurality of spaced locations, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations and coats the interfaces of the laminations and the windings, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 2
Dependent Claim
141 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving slot insulators and windings which are held together by an adhesive bonding material, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting slot insulators into the winding slots to loosely confine the laminations, inserting the windings within the insulated winding slots to confine the laminations along with the slot insulators, clamping the plurality of loosely confined, wound laminations under a predetermined axial compression at a plurality of spaced locations, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations and coats the interfaces of the laminations and the windings, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 3
Dependent Claim
25 words
In the method of claim 1, and further including the step of heating the laminations and windings prior to the application of the bonding material.
Claim 4
Dependent Claim
58 words
In the method of claim 1, wherein the clamping step includes placing the wound laminations over an alignment arbor, passing bolts through aligned openings within the laminations at the plurality of spaced locations which are threaded into an assembly ring, and applying pre-selected axial pressure to the bolts at the spaced locations to provide said predetermined axial compression.
Claim 5
Dependent Claim
125 words
In a method of forming wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving windings which are held together by an adhesive bonding material, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting windings within the winding slots to loosely confine the laminations, clamping the plurality of loosely confined, wound laminations at a plurality of spaced locations under a predetermined axial compression, heating the laminations and windings, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 6
Dependent Claim
125 words
In a method of forming wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving windings which are held together by an adhesive bonding material, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting windings within the winding slots to loosely confine the laminations, clamping the plurality of loosely confined, wound laminations at a plurality of spaced locations under a predetermined axial compression, heating the laminations and windings, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 7
Dependent Claim
27 words
In the method of claim 4, wherein the heating step includes the maintenance of a temperature of 320* plus or minus 10* F. for 1 1/2 hours.
Claim 8
Dependent Claim
147 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving windings which are held together by an adhesive bonding material with the windings having output leads extending outward from the laminations which are maintained substantially free of bonding material by the use of an enclosure comprising the steps of stacking the plurality of laminations, inserting the windings within the winding slots, placing an enclosure over the outwardly extending output leads, passing compressed gas through the enclosure to prevent bonding material from coating the output leads, applying an adhesive bonding material to the wound laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings without coating the output leads, removing the enclosure from the output leads, and setting the bonding material.
Claim 9
Dependent Claim
147 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving windings which are held together by an adhesive bonding material with the windings having output leads extending outward from the laminations which are maintained substantially free of bonding material by the use of an enclosure comprising the steps of stacking the plurality of laminations, inserting the windings within the winding slots, placing an enclosure over the outwardly extending output leads, passing compressed gas through the enclosure to prevent bonding material from coating the output leads, applying an adhesive bonding material to the wound laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings without coating the output leads, removing the enclosure from the output leads, and setting the bonding material.
Claim 10
Dependent Claim
25 words
In the method of claim 6, wherein the step of applying bonding material includes immersing the wound laminations within a supply of the bonding material.
Claim 11
Dependent Claim
24 words
In the method of claim 7, including the step of elevating one end of the enclosure to remain above the supply of bonding material.
Claim 12
Dependent Claim
188 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving slot insulators and windings which are held together by an adhesive bonding material with the windings having output leads extending outward from the laminations which are maintained substantially free of bonding material by the use of an enclosure, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting slot insulators into the winding slots to loosely confine the laminations, inserting the windings within the insulated winding slots to confine the laminations along with the slot insulators, clamping the plurality of loosely confined, wound laminations at a plurality of spaced locations under a predetermined axial compression, placing an enclosure over the outwardly extendiNg output leads, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings without coating the output leads, removing the enclosure from the output leads, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 13
Dependent Claim
188 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving slot insulators and windings which are held together by an adhesive bonding material with the windings having output leads extending outward from the laminations which are maintained substantially free of bonding material by the use of an enclosure, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting slot insulators into the winding slots to loosely confine the laminations, inserting the windings within the insulated winding slots to confine the laminations along with the slot insulators, clamping the plurality of loosely confined, wound laminations at a plurality of spaced locations under a predetermined axial compression, placing an enclosure over the outwardly extendiNg output leads, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings without coating the output leads, removing the enclosure from the output leads, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 14
Dependent Claim
199 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving slot insulators and windings which are held together by an adhesive bonding material with the windings having output leads extending outward from the laminations which are maintained substantially free of bonding material by the use of a tube, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting slot insulators into the winding slots to loosely confine the laminations, inserting the windings within the insulated winding slots to confine the laminations along with the slot insulators, clamping the plurality of loosely confined, wound laminations at a plurality of spaced locations, placing the tube over the outwardly extending output leads, conducting a compressed gas through the tube to prevent bonding material from coating the output leads, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings without coating the output leads, removing the tube from the output leads, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 15
Dependent Claim
199 words
In a method of forming a wound stator core, for use in a dynamoelectric machine, fabricated from a plurality of laminations each having winding slots for receiving slot insulators and windings which are held together by an adhesive bonding material with the windings having output leads extending outward from the laminations which are maintained substantially free of bonding material by the use of a tube, comprising the steps of loosely stacking the plurality of laminations and aligning the winding slots, inserting slot insulators into the winding slots to loosely confine the laminations, inserting the windings within the insulated winding slots to confine the laminations along with the slot insulators, clamping the plurality of loosely confined, wound laminations at a plurality of spaced locations, placing the tube over the outwardly extending output leads, conducting a compressed gas through the tube to prevent bonding material from coating the output leads, applying an adhesive bonding material to the wound, clamped laminations which flows by capillary action between the laminations thereby covering the interfaces of the laminations and coating the windings without coating the output leads, removing the tube from the output leads, setting the bonding material, and unclamping the bonded, wound laminations.
Claim 16
Dependent Claim
23 words
In the method of claim 10, wherein the bonding material application step includes immersing the wound laminations within a supply of bonding material.
Claim 17
Dependent Claim
30 words
The method of claim 9, and including the step of forming, insulating and lacing the winding end turns and further interconnecting appropriate windings prior to applying an adhesive bonding material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |