US3845548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for inserting dynamoelectric machine coils
Assignee: General Electric Co
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Filing: 1973-10-25
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Granted: 1974-11-05
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Expires: 1993-10-25
Abstract
Abstract Method of inserting overlying coils into axially extending slots of a dynamoelectric machine core. Includes placing portions of turns of at least two coils (one of which overlies the other) in turn-receiving gaps of coil insertion equipment; moving turn advancing means comprising turn feeding or pushing members into engagement with selected portions of coils so as to move coils along gaps while nesting end turn portions of at least one coil in a pocket defined by turn advancing means, and while engaging end turn portions of at least some turns of each of coils directly with turn advancing means. At least, some winding turns are moved into core slots by applying coil inserting forces to end turn portions thereof rather than relying solely on the application of forces transmitted to side turn portions thereof. Apparatus includes coil advancing means having fins or blades movable along the winding turn accommodating gaps defined by upstanding blades. Fins axially move winding turns into axially extending slots of magnetic core. Coil advancing means includes contoured or multi-leveled surface regions that is configured to accommodate end turn portions of at least part of one coil in pocket regions. Coil advancing means also includes elevated portions that separate pocket regions and that engage directly end turn portions of at least some winding turns associated with an overlying coil.
Inventors
- 👤 R Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:25
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/06; H02K15/062; H02K15/065; H02K15/067; H02K15/068; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49073; Y10T29/53; Y10T29/5313; Y10T29/53143
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
247 words
A method of inserting at least two winding coils, each comprising at least one winding turn, one of which overlies the other, into axially extending slots of a dynamoelectric machine core; said method incluDing placing portions of at least one turn of at least one first coil in turn-receiving gaps of coil insertion equipment; placing portions of at least one turn of at least one other coil in gaps of the coil insertion equipment and in overlying relationship to at least part of at least one turn of the at least one first coil; moving turn advancing means comprising turn feeding members into engagement with selected portions of at least one turn of the at least one first coil so as to apply force directly thereto, while nesting the end turn portion of at least one turn of the at least one first coil in a pocket defined by the turn advancing means, and while engaging at least one end turn portion of the at least one first coil and of the at least one other coil directly with the turn advancing means, whereby coil inserting forces are applied directly to an end turn portion of at least one turn of the at least one first coil and to an end turn portion of at least one turn of the at least one other coil while the at least one first coil and at least one other coil are moved along gaps of the coil injection equipment.
Claim 2
Independent Claim
247 words
A method of inserting at least two winding coils, each comprising at least one winding turn, one of which overlies the other, into axially extending slots of a dynamoelectric machine core; said method incluDing placing portions of at least one turn of at least one first coil in turn-receiving gaps of coil insertion equipment; placing portions of at least one turn of at least one other coil in gaps of the coil insertion equipment and in overlying relationship to at least part of at least one turn of the at least one first coil; moving turn advancing means comprising turn feeding members into engagement with selected portions of at least one turn of the at least one first coil so as to apply force directly thereto, while nesting the end turn portion of at least one turn of the at least one first coil in a pocket defined by the turn advancing means, and while engaging at least one end turn portion of the at least one first coil and of the at least one other coil directly with the turn advancing means, whereby coil inserting forces are applied directly to an end turn portion of at least one turn of the at least one first coil and to an end turn portion of at least one turn of the at least one other coil while the at least one first coil and at least one other coil are moved along gaps of the coil injection equipment.
Claim 3
Dependent Claim
38 words
The method of claim 1 wherein placing portions of at least one turn of the at least one first coil includes placing at least one end turn portion in a pocket establishing region of the turn advancing means.
Claim 4
Dependent Claim
57 words
The method of claim 1 further including the step of placing a slotted magnetic dynamoelectric machine core in aligned relationship with winding turn accommodating gaps of the coil insertion equipment, and thereafter relatively moving the turn advancing means and dynamoelectric machine core to effect placement of winding turns into axially extending slots of the dynamoelectric machine core.
Claim 5
Dependent Claim
48 words
The method of claim 1 wherein the at least one other coil is disposed in overlapping relationship to the at least one first coil while the at least one first coil and at least one other coil are disposed with portions thereof in gaps of the injection equipment.
Claim 6
Dependent Claim
56 words
The method of claim 1 wherein the at least one first coil has portions thereof placed in magnetic core slots to establish at least part of a first phase winding and wherein the at least one other coil has portions thereof placed in magnetic core slots to establish at least part of a second phase winding.
Claim 7
Dependent Claim
37 words
The method of claim 1 wherein the at least one first coil and the at least one other coil each have portions placed in magnetic core slots to establish at least part of the same winding phase.
Claim 8
Independent Claim
208 words
A method of inserting side turn portions of first and second coils of a dynamoelectric machine winding formed of turns of conductor wire wherein at least one first coil has at least some portions thereof overlying at least some portions of a second coil, the method of inserting including moving side turn portions of the first and second coils into predetermined axially extending slots of a magnetic core having axially extending slot entrances, extending between two faces of the core, positioned in predetermined alignment with gap defining members of coil insertion apparatus; the method including: engaging portions of at least the second coil in the vicinity of the gap determined by the gap defining members, and moving the second coil axially along gaps of the gap defining members toward predetermined ones of the axially extending core slots; and engaging at least some end turn portions of both the first and second coils directly with turn advancing means and moving the coils into magnetic core slots by applying axially directed forces to end turn portions of at least some of the turns of each of the first and second coils with the turn advancing means, thereby to more uniformly distribute injection forces applied to the first and second coils.
Claim 9
Independent Claim
208 words
A method of inserting side turn portions of first and second coils of a dynamoelectric machine winding formed of turns of conductor wire wherein at least one first coil has at least some portions thereof overlying at least some portions of a second coil, the method of inserting including moving side turn portions of the first and second coils into predetermined axially extending slots of a magnetic core having axially extending slot entrances, extending between two faces of the core, positioned in predetermined alignment with gap defining members of coil insertion apparatus; the method including: engaging portions of at least the second coil in the vicinity of the gap determined by the gap defining members, and moving the second coil axially along gaps of the gap defining members toward predetermined ones of the axially extending core slots; and engaging at least some end turn portions of both the first and second coils directly with turn advancing means and moving the coils into magnetic core slots by applying axially directed forces to end turn portions of at least some of the turns of each of the first and second coils with the turn advancing means, thereby to more uniformly distribute injection forces applied to the first and second coils.
Claim 10
Independent Claim
266 words
A method of placing at least first and second coils, each comprising at least one turn of wire, of a dynamoelectric machine winding into axially extending slots of a dynamoelectric machine magnetic core, wherein the first and second coils have at least parts tHereof arranged in overlying relation prior to being placed into the magnetic core slots; the method comprising: placing at least one turn of the first coil between turn-receiving gaps of coil placing apparatus and placing at least one turn of the second coil in turn-receiving gaps of the coil placing apparatus with at least part of the at least one turn of the second coil arranged in overlying relationship to at least part of the at least one turn of the first coil; positioning a magnetic core with axially extending slots thereof aligned with the turn-receiving gaps; pulling the side turn portions of the first and second coils along the turn-receiving gaps and moving them into the slots of the magnetic core by engaging, with coil advancing means, directly at least one end turn portion of both the first and second coil; by directly engaging, with coil advancing means, at least one side turn portion of the first coil; and by moving at least one side turn portion of the second coil by engaging it with a moving portion of an underlying side turn portion of the first coil; whereby a reduced amount of coil placing force needs to be applied to side turn portions of the overlying second coil by side turn portions of the first coil during the coil placing process.
Claim 11
Independent Claim
266 words
A method of placing at least first and second coils, each comprising at least one turn of wire, of a dynamoelectric machine winding into axially extending slots of a dynamoelectric machine magnetic core, wherein the first and second coils have at least parts tHereof arranged in overlying relation prior to being placed into the magnetic core slots; the method comprising: placing at least one turn of the first coil between turn-receiving gaps of coil placing apparatus and placing at least one turn of the second coil in turn-receiving gaps of the coil placing apparatus with at least part of the at least one turn of the second coil arranged in overlying relationship to at least part of the at least one turn of the first coil; positioning a magnetic core with axially extending slots thereof aligned with the turn-receiving gaps; pulling the side turn portions of the first and second coils along the turn-receiving gaps and moving them into the slots of the magnetic core by engaging, with coil advancing means, directly at least one end turn portion of both the first and second coil; by directly engaging, with coil advancing means, at least one side turn portion of the first coil; and by moving at least one side turn portion of the second coil by engaging it with a moving portion of an underlying side turn portion of the first coil; whereby a reduced amount of coil placing force needs to be applied to side turn portions of the overlying second coil by side turn portions of the first coil during the coil placing process.
Claim 12
Dependent Claim
176 words
Coil placing apparatus comprising a plurality of winding turn-receiving gap defining members; means for advancing winding turns accommodated between adjacent ones of said gap defining members; said means for advancing comprising pocket establishing portions that define a relieved region for accommodating the end turn portions of at least one coil, and further comprising at least one elevated surface portion for supporting end turn portions of winding turns that have at least a portion thereof arranged in overlying relation to at least a portion of some of the turns that have the end turn portions thereof accommodated in the relieved region of the means for advancing; and actuating means for moving the means for advancing axially relative to the gap defining members whereby the at least some of the coil turns that have portions thereof overlying portions of other coil turns are directly engaged in the vicinity of the end portions thereof by said elevated surface portion thereby to diminish the inter turn forces that otherwise would be applied to the overlying portions of overlying coil turns.
Claim 13
Dependent Claim
176 words
Coil placing apparatus comprising a plurality of winding turn-receiving gap defining members; means for advancing winding turns accommodated between adjacent ones of said gap defining members; said means for advancing comprising pocket establishing portions that define a relieved region for accommodating the end turn portions of at least one coil, and further comprising at least one elevated surface portion for supporting end turn portions of winding turns that have at least a portion thereof arranged in overlying relation to at least a portion of some of the turns that have the end turn portions thereof accommodated in the relieved region of the means for advancing; and actuating means for moving the means for advancing axially relative to the gap defining members whereby the at least some of the coil turns that have portions thereof overlying portions of other coil turns are directly engaged in the vicinity of the end portions thereof by said elevated surface portion thereby to diminish the inter turn forces that otherwise would be applied to the overlying portions of overlying coil turns.
Claim 14
Dependent Claim
104 words
Coil turn inserting apparatus including coil turn advancing means including coil turn feeder blades movable along winding turn accommodating gaps established by gap defining divider blades, and a contoured portion configured to accommodate a first number of end turn portions of coils along a number of angularly spaced apart pocket regions; said contoured portion further being configured to provide a raised surface region between two adjacent pocket regions for accommodating and applying turn inserting forces to end turn portions of coil turns that have at least a portion thereof disposed in overlying relation to at least portions of at least some other winding turns.
Claim 15
Dependent Claim
104 words
Coil turn inserting apparatus including coil turn advancing means including coil turn feeder blades movable along winding turn accommodating gaps established by gap defining divider blades, and a contoured portion configured to accommodate a first number of end turn portions of coils along a number of angularly spaced apart pocket regions; said contoured portion further being configured to provide a raised surface region between two adjacent pocket regions for accommodating and applying turn inserting forces to end turn portions of coil turns that have at least a portion thereof disposed in overlying relation to at least portions of at least some other winding turns.
Claim 16
Dependent Claim
36 words
The apparatus of claim 10 wherein said pocket regions are defined, at least in part, by relieved surfaces; and wherein said raised surface region comprises at least one surface region spaced axially from said relieved surfaces.
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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |