US3579818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming shaped insulators and for developing coils of a magnetic core
Assignee: General Electric Co
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Filing: 1969-03-11
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Granted: 1971-05-25
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Expires: 1989-03-11
Abstract
Abstract Method and apparatus for developing shaped insulators of different axial lengths and coil turns into coil groups in preselected slots of a magnetic core. The insulators are automatically formed into the desired lengths from a continuous strip of insulative material at an insulator-forming station by apparatus including a feeding mechanism, slotted magazine, cutter, and linkage having a movable pivot operative to effect a change in the length of material advanced into predetermined slots of the magazine. The magazine is mounted to telescope with an outer surface of an insulator and turn-accommodating mechanism or assembly into which the insulators are transferred. Turns are formed into coil groups in the assembly through the outer surface at a turn-forming station, and thereafter the coil groups and insulators are distributed into the preselected slots of the core from the assembly. Where two or more winding phases are to be distributed, the core may be conveniently mounted in a holding device carried by a conveyor which transports the core through a first phase-winding development, where the insulators and one winding are placed in the core, a winding pressback station where the winding is transformed into the desired configuration, and into a second phase-winding development where additional insulators and a winding are added to the core.
Inventors
- 👤 Richard B Arnold
- 👤 Dallas F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:24
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/10; H02K15/06; H02K15/062; H02K15/065; H02K15/067; H02K15/068; Y; Y10; Y10S; Y10S493/00; Y10S493/949; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/4902; Y10T29/49073; Y10T29/51; Y10T29/5176; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53152
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
243 words
Apparatus for forming insulators from a strip of insulative material, for developing at least one coil group into poles of a phase winding formed of conductive wire, and for inserting the insulators and at least one coil group into axially extending slots of a magnetic core, the apparatus comprising: an insulatorforming station having an assembly mounted on a platform for forming insulators in slots of an insulator magazine; said insulator magazine having a first position aligned with said assembly and having axial slots circumferentially located about the magazine periphery for selectively receiving a set of shaped insulators from said assembly at the insulator-forming station; a conveyor having at least two coil-accommodating and injection mechanisms spaced apart thereon for receiving shaped insulators and the at least one coil group and for injecting the insulators and the at least one coil group into slots of the magnetic core, one of said coil-accommodating and injection mechanisms being selectively in telescoping relationship with said insulator magazine at a second position of the insulator magazine; means for selectively moving said insulator magazine between the first position and the second position; means for transferring the insulators from the magazine into the one coil-accommodating and injection mechanism when the magazine is disposed in telescoping relation therewith at the second position; and coil-developing means spaced apart from the insulator-forming station for generating the at least one coil group from wire selectively in the mechanisms after the insulators have been transferred therein.
Claim 2
Dependent Claim
243 words
Apparatus for forming insulators from a strip of insulative material, for developing at least one coil group into poles of a phase winding formed of conductive wire, and for inserting the insulators and at least one coil group into axially extending slots of a magnetic core, the apparatus comprising: an insulatorforming station having an assembly mounted on a platform for forming insulators in slots of an insulator magazine; said insulator magazine having a first position aligned with said assembly and having axial slots circumferentially located about the magazine periphery for selectively receiving a set of shaped insulators from said assembly at the insulator-forming station; a conveyor having at least two coil-accommodating and injection mechanisms spaced apart thereon for receiving shaped insulators and the at least one coil group and for injecting the insulators and the at least one coil group into slots of the magnetic core, one of said coil-accommodating and injection mechanisms being selectively in telescoping relationship with said insulator magazine at a second position of the insulator magazine; means for selectively moving said insulator magazine between the first position and the second position; means for transferring the insulators from the magazine into the one coil-accommodating and injection mechanism when the magazine is disposed in telescoping relation therewith at the second position; and coil-developing means spaced apart from the insulator-forming station for generating the at least one coil group from wire selectively in the mechanisms after the insulators have been transferred therein.
Claim 3
Dependent Claim
137 words
The apparatus of claim 1 in which the assembly for forming insulators in slots of The insulator magazine is capable of forming the insulators into at least two different lengths and comprises: guide means for containing a section of the strip of insulative material; a feed mechanism having material-advancing means along the guide means and material-retaining means; linkage means coupled to said material-advancing means and having a movable pivot operable to effect a change in the length of insulative material advanced; timing means connected to said linkage means for effecting periodic reciprocating movement thereof; severing means operatively associated with said timing means and operable to cyclically sever an advanced length of insulative material; and means for controlling the position of the movable pivot of said linkage means in response to a selected position of the insulator magazine.
Claim 4
Dependent Claim
87 words
The apparatus of claim 1 in which the platform of the insulator-forming station is movable toward and away from the one coil-accommodating and injection mechanism; a plurality of pushers aligned with the slots of said insulator magazine, and means responsive to a movement of said platform toward the one mechanism for causing said pushers to drive the shaped insulators from said insulator magazine into said one coil-accommodating and injection mechanisms when the insulator magazine is disposed in the vicinity of said one mechanism at the second position.
Claim 5
Dependent Claim
145 words
The apparatus of claim 1 in which the coil-developing means includes a winding head and flyer for generating turns selectively in the coil-accommodating and injection mechanisms, and means for controlling operation of the apparatus generally in accordance with the formula where: Tc total time of the operating cycle in seconds; t1 time in seconds to index the respective mechanisms from one position to another; P number of poles per phase; K1 1 for symmetrical coil groups and zero for asymmetrical coil groups; K2 time in seconds to move coil-accommodating and injection mechanisms from one position into another position during generation of the at least one core group; K3 time in seconds to accelerate, decelerate, home and is related to flyer speed; K4 number of turns generated during acceleration and deceleration; tp total number of turns per pole; and S speed of winding head in r.p.s.
Claim 6
Dependent Claim
178 words
Apparatus for forming insulators from a strip of insulative material and for developing coils in preselected axially extending slots of a slotted structure comprising: insulator-producing means mounted on a platform for forming insulators from the strip into predetermined lengths in axial slots of an insulator-receiving mechanism, said mechanism having a first position in which the slots sequentially receive insulators from the insulator-producing means and a second position disposed adjacent guide apertures opening at one face of an insulator and coil-turn inserting assembly, with the slots of the insulator-receiving mechanism being disposed in alignment with the guide apertures next to the one face when in the second position; means for transferring the insulators from the mechanism to said assembly when said mechanism is disposed in the second position; said assembly having means opening at the one face to receive coil turns; and means for inserting the insulators and coil turns into the preselected slots of the slotted structure from said assembly when slotted structure is disposed at the second position and the insulator-receiving mechanism is in the first position.
Claim 7
Dependent Claim
178 words
Apparatus for forming insulators from a strip of insulative material and for developing coils in preselected axially extending slots of a slotted structure comprising: insulator-producing means mounted on a platform for forming insulators from the strip into predetermined lengths in axial slots of an insulator-receiving mechanism, said mechanism having a first position in which the slots sequentially receive insulators from the insulator-producing means and a second position disposed adjacent guide apertures opening at one face of an insulator and coil-turn inserting assembly, with the slots of the insulator-receiving mechanism being disposed in alignment with the guide apertures next to the one face when in the second position; means for transferring the insulators from the mechanism to said assembly when said mechanism is disposed in the second position; said assembly having means opening at the one face to receive coil turns; and means for inserting the insulators and coil turns into the preselected slots of the slotted structure from said assembly when slotted structure is disposed at the second position and the insulator-receiving mechanism is in the first position.
Claim 8
Dependent Claim
131 words
The apparatus of claim 5 in which the means for forming insulators from the strip into predetermined lengths in axial slots of the insulator-receiving mechanism comprises: guide means for containing a section of the strip of insulative material; a feed mechanism having material-advancing means along the guide means and material-rEtaining means; linkage means coupled to said material-advancing means and having a movable pivot operable to effect a change in the length of insulative material advanced; timing means connected to said linkage means for effecting periodic reciprocating movement thereof; severing means operatively associated with said timing means and operable to cyclically sever an advanced length of insulative material; and means for controlling the position of the movable pivot of said linkage means in response to a selected position of the insulator-receiving mechanism.
Claim 9
Dependent Claim
180 words
Apparatus for forming insulators and for developing coils in preselected slots of a slotted structure comprising: means for forming insulators in slots of an insulator-receiving mechanism related to preselected slots of the slotted structure; means for transferring the insulators from the mechanism into guide apertures of an insulator and coil-turn inserting assembly, with the slots of the mechanism being disposed in alignment with the guide apertures; said assembly having means for receiving coil turns; means for inserting the insulators and coil turns into the preselected slots of the slotted structure from said assembly when the preselected slots are disposed in alignment with the apertures of the assembly; holding means for retaining the slotted structure in aligned position with the apertures as the insulators and coil turns are being inserted into the preselected slots; means for pressing back the coil turns relative to the slotted structure as the slotted structure is being retained by said holding means; and conveyor means for transporting the holding means having the slotted structure from the assembly to the means for pressing back the coil turns.
Claim 10
Dependent Claim
180 words
Apparatus for forming insulators and for developing coils in preselected slots of a slotted structure comprising: means for forming insulators in slots of an insulator-receiving mechanism related to preselected slots of the slotted structure; means for transferring the insulators from the mechanism into guide apertures of an insulator and coil-turn inserting assembly, with the slots of the mechanism being disposed in alignment with the guide apertures; said assembly having means for receiving coil turns; means for inserting the insulators and coil turns into the preselected slots of the slotted structure from said assembly when the preselected slots are disposed in alignment with the apertures of the assembly; holding means for retaining the slotted structure in aligned position with the apertures as the insulators and coil turns are being inserted into the preselected slots; means for pressing back the coil turns relative to the slotted structure as the slotted structure is being retained by said holding means; and conveyor means for transporting the holding means having the slotted structure from the assembly to the means for pressing back the coil turns.
Claim 11
Dependent Claim
128 words
The apparatus of claim 7 in which the means for forming insulators in slots of an insulator-receiving mechanism comprises: guide means for containing a section of the strip of insulative material; a feed mechanism having material-advancing means along the guide means and material-retaining means; linkage means coupled to said material-advancing means and having a movable pivot operable to effect a change in the length of insulative material advanced; timing means having a rotating member connected to said linkage means for effecting periodic reciprocating movement thereof; severing means operatively associated with said timing means and operable to cyclically sever and advanced length of insulative material; and means for controlling the position of the movable pivot of said linkage means in response to a selected position of the insulator-receiving mechanism.
Claim 12
Dependent Claim
44 words
The apparatus of claim 7 in which the means for pressing back the coil turns includes electrical connectors to connect the coil turns in a load circuit with an energy pulse source for generating electromagnetic forces to effect the desired pressback of the turns.
Claim 13
Dependent Claim
134 words
Apparatus for forming insulators into at least two different lengths and for developing coils in preselected slots of a slotted structure comprising: means for forming insulators into at least two different lengths in slots of an insulator-receiving mechanism related to preselected slots of the slotted structure; means for transferring the insulators from the mechanism into guide apertures opening at one face of an insulator and coil-turn inserting assembly, with the slots of the mechanism being disposed in alignment with the guide apertures next to the one face; said assembly having means opening at the one face to receive coil turns; and means for inserting the insulators and coil turns into the preselected slots of the slotted structure from said assembly when the preselected slots are disposed next to said one face of the assembly.
Claim 14
Dependent Claim
134 words
Apparatus for forming insulators into at least two different lengths and for developing coils in preselected slots of a slotted structure comprising: means for forming insulators into at least two different lengths in slots of an insulator-receiving mechanism related to preselected slots of the slotted structure; means for transferring the insulators from the mechanism into guide apertures opening at one face of an insulator and coil-turn inserting assembly, with the slots of the mechanism being disposed in alignment with the guide apertures next to the one face; said assembly having means opening at the one face to receive coil turns; and means for inserting the insulators and coil turns into the preselected slots of the slotted structure from said assembly when the preselected slots are disposed next to said one face of the assembly.
Claim 15
Dependent Claim
67 words
The apparatus of claim 10 including at least one holding device for retaining the slotted structure with its preselected slots disposed next to said one side face of the assembly as the insulators and coil turns are being inserted with the preselected slots; and means for pressing baCk the coil turns relative to the slotted structure as the slotted structure is being retained by said holding device.
Claim 16
Dependent Claim
39 words
The apparatus of claim 11 in which the latter means includes electrical connectors to connect the coil turns in a load circuit with an energy pulse source for generating electromagnetic forces to effect the desired pressback of the turns.
Claim 17
Dependent Claim
131 words
The apparatus of claim 10 in which the means for forming insulators into at least two different lengths in slots of an insulator-receiving mechanism comprises: guide means for containing a section of the strip of insulative material; a feed mechanism having material-advancing means along the guide means and material-retaining means; linkage means coupled to said material-advancing means and having a movable pivot operable to effect a change in the length of insulative material advanced; timing means for connection to said linkage means for effecting periodic reciprocating movement thereof; severing means operatively associated with said timing means and operable to cyclically sever an advanced length of insulative material; and means for controlling the position of the movable pivot of said linkage means in response to a selected position of the insulator-receiving mechanism.
Claim 18
Dependent Claim
193 words
The apparatus of claim 10 in which the insulator and coil-turn inserting assembly comprises means for effecting a telescoping relation with said insulator-receiving mechanism to facilitate transfer of the insulators from the mechanism to the assembly; insulator guide means for guiding said severed and shaped insulators into the axially extending slots of the slotted structure, pusher means associated with said insulator guide means for forcing said insulators into selected axially extending slots of the slotted structure, a coil-turn feeder assembly including a preselected number of divider blades and coil-turn feeder blades, at least one of said coil-turn feeder blades faces defining turn-receiving gaps with opposed faces of adjacent divider blades when said pusher means are in an initial position, said turn-receiving gaps being aligned with selected pairs of slot entrances of the slotted structure for axially feeding conductor wire into predetermined pairs of the slots of the slotted structure, and means for driving said pusher means and said coil-turn feeder blades from an initial position to a fully extended position thereby to effect a placement of said insulators and side turn portions of the electrical coil in preselected slots of said slotted structure.
Claim 19
Independent Claim
137 words
A method of forming insulators in at least two different lengths and for developing at least one winding in preselected slots of a slotted structure comprising the steps of: forming insulators of at least two different lengths in selected positions in a slotted assembly related to preselected slots of the slotted structure at an insulator-forming station, disposing the assembly next to a face of an insulator and winding accommodating mechanism, and transferring the insulators from the assembly into predetermined apertures of the mechanism; producing turns of the winding in the insulator and winding accommodating mechanism; and holding the slotted structure in the vicinity of the face with the predetermined apertures being aligned with the preselected slots of the slotted structure; and distributing the insulators and winding into the preselected slots of the slotted structure from the mechanism.
Claim 20
Independent Claim
137 words
A method of forming insulators in at least two different lengths and for developing at least one winding in preselected slots of a slotted structure comprising the steps of: forming insulators of at least two different lengths in selected positions in a slotted assembly related to preselected slots of the slotted structure at an insulator-forming station, disposing the assembly next to a face of an insulator and winding accommodating mechanism, and transferring the insulators from the assembly into predetermined apertures of the mechanism; producing turns of the winding in the insulator and winding accommodating mechanism; and holding the slotted structure in the vicinity of the face with the predetermined apertures being aligned with the preselected slots of the slotted structure; and distributing the insulators and winding into the preselected slots of the slotted structure from the mechanism.
Claim 21
Dependent Claim
31 words
The method of claim 15 in which the insulators are closure and phase insulators and the phase insulators are distributed in slots of the slotted structure adapted to receive additional windings.
Claim 22
Dependent Claim
52 words
The method of claim 15 in which the insulators are formed at a first station, the turns are produced at a second station, and the insulators and windings are distributed in the slotted structure at a third station, with the three stations being disposed in spaced relation with respect to one another.
Claim 23
Independent Claim
107 words
A method for forming insulators and developing coils in slots of a magneTic core comprising the steps of: forming a number of insulators and placing them in an insulator-receiving mechanism; transferring the insulators selectively from the insulator-receiving mechanism into guide apertures having openings at one face of an insulator and coil-turn inserting assembly, with the insulator-receiving mechanism disposed adjacent the one face of the assembly; developing coil turns in the assembly at a preselected location; transporting the assembly having insulators and coil turns therein to another location; maintaining a magnetic core adjacent the one face and inserting the insulators and coil turns into slots of the core.
Claim 24
Independent Claim
107 words
A method for forming insulators and developing coils in slots of a magneTic core comprising the steps of: forming a number of insulators and placing them in an insulator-receiving mechanism; transferring the insulators selectively from the insulator-receiving mechanism into guide apertures having openings at one face of an insulator and coil-turn inserting assembly, with the insulator-receiving mechanism disposed adjacent the one face of the assembly; developing coil turns in the assembly at a preselected location; transporting the assembly having insulators and coil turns therein to another location; maintaining a magnetic core adjacent the one face and inserting the insulators and coil turns into slots of the core.
Claim 25
Independent Claim
125 words
A method for forming insulators and developing coils in slots of a magnetic core comprising the steps of: forming a number of insulators and placing them in an insulator-receiving mechanism; transferring the insulators from the insulator-receiving mechanism selectively into guide apertures of an insulator and coil-turn inserting assembly; developing coil turns in the assembly; maintaining the magnetic core in a holding device adjacent the assembly and distributing coil turns and the insulators into slots of the magnetic core; transporting the magnetic core having the turns and insulators in the holding device away from the assembly and into a coil pressback station; and pressing back the winding relative to the magnetic core in that station as the magnetic core is being retained by the holding device.
Claim 26
Independent Claim
125 words
A method for forming insulators and developing coils in slots of a magnetic core comprising the steps of: forming a number of insulators and placing them in an insulator-receiving mechanism; transferring the insulators from the insulator-receiving mechanism selectively into guide apertures of an insulator and coil-turn inserting assembly; developing coil turns in the assembly; maintaining the magnetic core in a holding device adjacent the assembly and distributing coil turns and the insulators into slots of the magnetic core; transporting the magnetic core having the turns and insulators in the holding device away from the assembly and into a coil pressback station; and pressing back the winding relative to the magnetic core in that station as the magnetic core is being retained by the holding device.
Claim 27
Dependent Claim
34 words
The method of claim 19 comprising the further steps of: distributing additional coil turns and insulators in slots of the magnetic core as the magnetic core is still being retained by the holding device.
References Cited (Backward Citations)
US1980170A
Cited
US2432267A
Cited
US2934099A
Cited
US2958122A
Cited
US3151638A
Cited
US3324536A
Cited
US3447225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |