132results about "Applying/manufacturing slot closures" patented technology

The wedge removal apparatus includes an elongated frame having telescopic elements at opposite ends with cylinders to engage pads along opposite sides of the frame against diametrically opposed wedges of stator core slots. The frame mounts a linear drive assembly carrying a carriage for longitudinal movement relative to the drive assembly and frame. The carriage mounts diametrically opposed heads and a cylinder displaces the heads radially outwardly to engage the wedges and compress underlying ripple springs. Saws carried by the heads cut through the wedges as the carriage is displaced along the frame and without binding because of the force applied to the wedges compressing the ripple springs. The linear drive assembly is rotated to discrete circumferential positions to cut the wedges of additional diametrically opposed slots.

A method and system for directly measuring the compression of a ripple spring (23) in a dynamoelectric machine through a corresponding wedge (27). A compression-assessment tool (3) is provided that includes a carriage (32) for supporting a proximity sensor (34). The carriage (32) enables the proximity sensor (34) to be passed over the length of the ripple spring (23), which produces an output signal that is representative of the compression of the ripple spring (23).

The invention relates to a stator (100) of a rotating electric machine, the stator (100) comprising: a laminate stack (104) having a plurality of slots (106) open towards an air gap between the stator (100) and a rotor of the electric machine; and a winding (102) having a plurality of coils, the turns of said winding each passing through slots (106) of the laminate stack (104). In this case, the turns of the coils within the slots (106) are electrically insulated from one another and from the laminate stack (104) by a ceramic material. In addition, the invention relates to a method for the automated production of a winding (102) of a stator (100) of a rotating electric machine.

A method and apparatus for visually detecting and measuring retention assembly tightness are disclosed. In an embodiment, an optical device is used to obtain at least an image of a retention assembly, the optical device being insertable into a slot between two stator core laminations and directable toward a side view of the retention assembly. The image is displayed on a display, and a measurer is used to determine a tightness of a retention assembly.

The invention provides a rotating electrical machine. A tooth main body is connected with tooth tip edge portions by connecting portions with slits being formed in the coil sides of the connecting portions; and the slits extend from opening portions towards the centers of the tooth tip edge portions in circumferential direction, and are formed so that their tooth main body sides and their tip edge portion sides, that together define the opening portions of the slits, contact one another; with the gaps between adjacent ones of the tooth tip edge portions in circumferential direction being smaller than a width of the slot. The high duty ratio of the iron core in the iron core groove is high, the coil winding is simplified and the electronic characteristic is excellent.

A stator manufacturing method includes the steps of preparing an armature core, forming an insulating member including two opposing portions from a sheet-like insulating material, and deforming the insulating member to move the two opposing portions toward each other. The method also includes the step of inserting distal parts of the two opposing portions into the corresponding slit from the axial direction thereby covering an inner surface of each of the slot with the insulating member. Further, the method includes the steps of inserting a conductor forming a winding into each of the slots between the two opposing portions.

A tool is provided for driving a slide or wedge within a slot of an armature or field of a dynamoelectric machine. The armature or field includes a core, and the core includes one or more vent slots for facilitating ventilation of the armature or field. The tool includes a drive for applying a driving force, and a push block is connected to the drive. At least one guide rail is configured to cooperate with the push block. The drive operates on the push block to drive a slide or wedge. The at least one guide rail reduces deflection or skew of the push block during a driving operation.

The invention provides a slot wedge processing device adapt to different widths. The slot wedge processing device comprises a clamping device, a polishing device, a milling device, a delivering device, and a width adjusting device. The clamping device comprises a positioning platform, a positioning plate, a connection rod, and an adjusting device. The polishing device comprises a first milling cutter and a second milling cutter. The milling device comprises a plurality of milling machines. The delivering device comprises multiple roller pairs and guide rails. The width adjusting device comprises a baffle plate and a movable press plate. A pressing device is used to tightly press a slot wedge strip under a delivery state so as to prevent the deviation of the slot wedge strip during the delivery process, the width adjusting device adjust the width of the slot wedge strip under a delivery state, and the processing device has the advantages of high automatic degree and high safety, can prevent the generation of sparks, and is capable of eliminating waste scraps in time.

Methods and apparatus are provided for improving operational characteristics of a concentrated winding machine. According to an example embodiment, a method comprises fabricating a magnetic slot wedge that is adapted to be joined to a first stator tooth and a second stator tooth, the first and second stator tooth part of a fixed-tooth stator that does not allow relative movement between the first stator tooth and the second stator tooth.

A stator of a rotary electrical machine has a stator body formed by a stack of metal sheets. The stator body is delimited by inner and outer radial surfaces. Notches in the stator body extend axially. Each notch has a notch base and a notch opening, and the notch opening is on the side of the inner radial surface. A stator winding is supported by the stator body, and the winding has a plurality of winding parts. Each part is accommodated in one of the notches. Each of the notches at the notch opening has a closure element. Each winding par in a notch is retained between the notch base and the closure element. The closure elements are formed by offsetting at least one of the metal sheets of an adjacent notch in the direction of the notch.

Please substitute the new Abstract submitted herewith for the original Abstract: Provided is a rotary electric machine that achieves high motor efficiency with little loss. This rotary electric machine is equipped with: a stator core arranged opposing the circumferential surface of a rotor, and in which multiple slots, wherein openings opening toward the rotor are formed, are formed in the circumferential direction; and coils inserted into the slots. A mixture of a soft magnetic powder and a resin material is formed in the openings of the slots, and the relative permeability of the mixture is 5-35.

The invention relates to the field of a motor stator for a compressor and in particular to an automatic insertion device for a motor stator insulated slot wedge. The automatic insertion device comprises a workpiece mounting plate, a control unit and a group connected with the control unit and including a loading device, a pre-insertion indexing mechanism and an insertion mechanism. The workpiece mounting plate is used for installing a motor stator. The pre-insertion indexing mechanism comprises a temporary storage device provided with a temporary storage hole at a position corresponding to themotor stator slot wedge mounting hole. The loading device is used for loading the slot wedge into the temporary storage hole. The temporary storage device is provided with a turntable capable of revolving itself and connected with the control unit. The insertion mechanism is used for inserting the slot wedge in the temporary storage hole into the motor stator slot wedge mounting hole. The loadingdevice inserts the slot wedge into the temporary storage hole, and then the turntable rotates so that the temporary storage hole on the temporary storage device and the motor stator wedge mounting hole face each other. The slot wedge in the temporary storage hole is inserted by the insertion mechanism into the motor stator slot wedge mounting hole. The automatic insertion device has high production efficiency, avoids missing the slot wedge insertion or bending the slot wedge during an insertion process, and improves the qualified rate of the motor stators.

Provided is a rotary electric machine that achieves high motor efficiency with little loss. This rotary electric machine is equipped with: a stator core 131 arranged opposing the circumferential surface of a rotor 12, and in which multiple slots 132, wherein openings 135 opening toward the rotor 12 are formed, are formed in the circumferential direction; and coils 133 inserted into the slots 132.A mixture 17 of a soft magnetic powder and a resin material is formed in the openings 135 of the slots 132, and the relative permeability of the mixture 17 is 5-35.

Provided is a high-powered low profile motor. The motor includes a stator (20) facing a rotor (50) while having a gap from the rotor (50). The stator (20) includes a ring-shaped connection core (10) formed by connecting a plurality of divided cores (5a) and an insulator (24) formed as if surrounding the connection core (10) by resin molding by an insertion forming. An inner diameter (r) of the connection core (10) is set smaller than inner diameters (R) of the divided cores (5a) bent in a half moon shape when connected.

A rotating electric device comprising: an outer stator (210) comprising an outer stator iron core (211) having a plurality of outer stator winding slots (213) formed on the inner peripheral surface thereof at a predetermined interval in the circumferential direction, and an outer winding (510) wound around an outer stator iron core tooth (218) relatively formed by a pair of outer stator winding slots (213) adjacent to each other; an inner stator (220) comprising an inner stator iron core (221) having a plurality of inner stator winding slots (223) formed on the outer peripheral surface thereof at a predetermined interval in the circumferential direction; and a rotor (300) having, between the outer stator (210) and the inner stator (220).

A stator lamination for an electric machine has a circular lamination with an annular bore therethrough; winding slots therethrough; and, slot closures disposed adjacent to the winding slots. The stator lamination is formed of a dual magnetic phase material, such that the magnetic property of the lamination can have a first state and a magnetic property in a second state, wherein the second state is different than the first state. The slot closures regions are treated so as to transition to the second state. A method of manufacturing an electric machine component is also disclosed.

A stator for a high efficiency motor and a manufacturing method of a stator for a high efficiency motor are disclosed. The method includes: preparing filling powder by coating a surface of soft magnetic powder with an insulating layer; providing a stator core partitioned into a center hole and inner spaces, the stator core including a yoke portion and a plurality of teeth; coiling coils around the plurality of teeth located in the inner spaces, respectively; and filling the inner spaces with a mixture of the filling powder and an adhesive, and curing the mixture of the filling powder and the adhesive.

In a method for producing a rotor including a leak prevention hole formed in a rotor core to prevent leakage of magnetic flux from a permanent magnet; an outer-circumferential-side dovetail groove formed in an outer-circumferential-side inner wall of the leak prevention hole, an inner-circumferential-side dovetail groove formed, opposite the outer-circumferential-side dovetail groove, in an inner-circumferential-side inner wall of the leak prevention hole; and a non-magnetic bridge having both end portions engageable with the dovetail grooves, an external force is applied to bring the outer-circumferential-side inner wall close to the inner-circumferential-side inner wall, the non-magnetic bridge is inserted in the dovetail grooves while keeping the rotor core in an elastically deformed state, and, after inserting, the external force is released.

A retention assembly for retaining a plurality of elements in a stator slot of an electric machine is provided. The retention assembly may include a stator wedge fixedly positioned in a dovetail in the stator slot to retain the plurality of elements; a top ripple spring between the plurality of elements and the stator wedge; and at least one shim positioned between the stator wedge and a load bearing surface of the dovetail. A method may include compressing the stator wedge in the stator slot from a first position thereof relative to the dovetail of the stator slot, the compressing creating a gap between the stator wedge and the dovetail. A shim may be inserted in the gap; the compressing released such that the shim retains the stator wedge in a second position that is more compressed relative to the plurality of elements in the stator slot compared to the first position.

The invention relates to a method for producing a rotor and / or a stator of a dynamoelectric rotary machine by means of the following steps: —producing pre-formed coils from an integral electrically conductive material or pre-insulated or coated electrically conductive wires, —fixing spacers to the pre-formed coil at predefinable intervals, —inserting the pre-formed coil, which is provided with spacers, into slots in a laminated core of a stator or rotor, —making contact with the individual pre-formed coils to form groups of coils and forming a winding system of a rotor and / or stator in accordance with a predefined circuit plan, —insulating the pre-formed coils or the winding system in the slots by complete encapsulation, in particular by complete vacuum encapsulation.

A remote-controlled dynamoelectric machine maintenance vehicle that can fit and travel within the air gap between a stator and rotor of a dynamoelectric machine. The maintenance vehicle has an effectuator that can remotely attach to an adjustable wedge within a coil slot of the stator and tighten the wedge in position and then move on to repeat the process until all the wedges on the stator are secured.

A retention assembly (102) for retaining a plurality of elements (104) in a stator slot (144) of an electric machine (100) is provided. The retention assembly (102) may include a stator wedge (164) fixedly positioned in a dovetail (166) in the stator slot (144) to retain the plurality of elements (104); a top ripple spring (168) between the plurality of elements (104) and the stator wedge (164); and at least one shim (110) positioned between the stator wedge (164) and a load bearing surface (165) of the dovetail (166). A method may include compressing the stator wedge (164) in the stator slot (144) from a first position thereof relative to the dovetail (166) of the stator slot (144), the compressing creating a gap (184B) between the stator wedge (164) and the dovetail (166). A shim (110) may be inserted in the gap (184B); the compressing released such that the shim (110) retains the stator wedge (164) in a second position that is more compressed relative to the plurality of elements (104) in the stator slot (144) compared to the first position.

The invention relates to a walking robot and a method thereof for processing slot wedge loosening. The walking robot includes a vehicle body and a striking part, and the vehicle body is used for being adsorbed on an iron core of a stator and capable of moving relative to the stator. The striking part is disposed on the vehicle body and capable of moving in a radial direction of the stator relative to the vehicle body to pass through an insertion hole of a slot wedge. The striking part can also move in the axial direction of the stator relative to the vehicle body to strike a spacer within the insertion hole. The walking robot can directly enter the gap between the stator and a rotor and can move above a loose slot wedge. After the striking part is inserted into the insertion hole of the slot wedge, the striking part can strike the spacer along the axial direction of the stator to enable the spacer to move along the axial direction of the stator for a certain distance to realize tightening through expending in the slot wedge, thereby realizing an effect of fastening a coil. The loose slot wedge is processed through utilization of the walking robot to avoid waste of a lot of time and manpower caused by drawing through the rotor and handling of loosening by human power, thereby substantially raising the efficiency of inspection and repairing a motor.