Abstract: An improved armature winding arrangement for a rotating electrical machine such as a specifically illustrated DC motor for driving a vehicle wheel. The assembly is such that the armature core can be formed from two laminated pieces that are rigidly connected to each other and held against axial movement. This eliminates the need for bonding adhesive. In addition, an improved bobbin arrangement is employed for both permitting attachment of a wiring plate directly to the core but also for retaining the ends of the individual windings to prevent them from becoming loose either during assembly or in operation.

Abstract: An assembly type stator structure having flat wire wound coils, whereby the occupation ratio of stator coils in stator wire grooves can be enhanced under the working condition of high current. Moreover, an accurate number of turns of coils can be provided so that the counter electro force coefficient KE of an electromotor or a generator can be precisely controlled, thereby designing a more accurate rated maximal rotation speed for an electromotor or a generator of a certain volume. The flat wire wound coils are wound with a high occupation ratio so that the impedance of copper wire thereof can be reduced. Therefore, an electromotor or a generator using the flat wire wound coils of the present invention can have a higher operational efficiency and a rated maximal operational speed, which can be set more easily.

Abstract: A winding body has a winding area (31) for a winding (13), which winding area (31) is formed by a winding carrier (32) and two legs (34, 35) which define the winding area (31) in axial direction (L) and are connected with the winding carrier (32). The winding carrier (32) has a locking device (40) for locking the winding body (30) at a winding tooth (24). Further, a temperature sensor (50) for measuring the temperature in a coil (25) can be provided in the winding body (30). The winding body (30) has a receiving area (36) for a connection device (70) for the windings (13), wherein the receiving area (36) is formed by one of the legs (35), an elongation area (33) of the winding carrier (32) extending beyond this leg (35), and a fixing leg (60) at a distance from the leg (35).

Abstract: A supporting structure for a rotor comprises two holding members, a supporting member, and a fixing member that is fixed in place. Each holding member comprises a hole and an inner flange formed on an inner periphery defining the hole. The supporting member comprises a supporting portion and the fixing member has a hole. An end of a shaft of a rotor extends through the holes of the fixing members with an end face of the shaft resting on the supporting portion of the supporting member. A retainer is engaged in a retaining groove of the shaft to thereby retain the shaft in place. The shaft and the inner flanges of the holding members have a minimum gap or a slight contact therebetween.

Abstract: An alternator rotor bobbin 10 for use with a field coil wire 18 is provided, including a winding face 12 around which the field coil wire 18 is wound, a bottom face 16, a top face 14, a field coil entry port 24 positioned on the top face 14 to allow field coil wire 18 to enter the alternator rotor bobbin 10 in an axial direction while requiring only a single bend in the field coil wire 18, a field coil exit port 24 positioned on the top face 14 to allow the field coil exit wire 26 to exit the alternator rotor bobbin 10 in an axial direction, a field coil entry port tower 34, and a field coil exit port tower 36. The field coil entry port tower 34 and the field coil exit port tower 36 include a second snap element 37 to prevent the field coil wire 18 from coming unwound prior to assembly into an alternator rotor.

Abstract: A motor has a stator formed by assembling stator members in an annular shape. The stator member includes a core segment formed of laminated electromagnetic steel sheets, an electrical insulator covering the core segment, and a coil wound on a tooth of the core segment via the insulator. At least parts of the insulator contacting the coil is made of highly heat-conductive insulating resin. A motor has a stator iron core formed of laminated electromagnetic steel sheets, and the motor includes a highly heat-conductive insulating sheet disposed on the laminated face of a slot of the stator iron core and a coil wound in a slot via the sheet. These structures allow the heat generated by the coil to travel to the core segment with ease, because of the resin or the sheet disposed between the core segment and the coil, thereby cooling the motor efficiently.

Abstract: The present invention separates stator teeth from stator portions into unit bodies to enhance effective operational efficiency of an electromotor or a generator. The unit bodies are respectively sleeved in insulating wire groove seats having annularly closed stable devices so that the stator coils can be disposed in the insulating wire groove seats with a higher occupied ratio of volume. A left and a right ends of teeth back face end portions of the insulating wire groove seats form two sideward-standing face portions, which correspond to and join each other to form an annularly closed stable joint. Thereby, swing oscillation generated by armature reaction of the stator teeth with rotor magnets can be eliminated, and the structural strength of the assembled stator portions can be enhanced. Therefore, the armature reaction between the stator portions and the rotor magnets can keep stable operation.

Abstract: A stator bobbin for axial winding is made from insulating material and includes a first disc, a second disc, and a connecting tube that connects the first disc with the second disc. The connecting tube has a central hole and a space for winding is defined between the first disc and the second disc. A first pole plate is attached to an outer side of the first disc and a second pole plate is attached to an outer side of the second disc. A distance between an outer end of the inner side of the first disc and an outer end of the inner side of the second disc is greater than that between an inner end of the inner side of the first disc and an inner end of the inner side of the second disc.

Abstract: In a rotor for a vehicular alternating current generator, a field coil is wound around an insulating bobbin. A flange of the bobbin is formed with the first, second and third hook portions. A coil winding finishing end is wound around the first hook portion and is opposed to a winding direction of the field coil. The finishing end is then directed in a radially inward direction with the second hook portion, and extended further in the radially inward direction along the axial end surface of the flange. Then, the finishing end is directed in the axial direction with the third hook portion, radially inside of the outer peripheral end of the field coil. The finishing end forms an angle with itself of less than 90 degrees around the first hook portion when being viewed along an axial direction of the first hook portion.

Abstract: A device with a stator having high performance flat coils is disclosed for increasing the operation efficiency and providing a correct number of winding in a coil which can cause a precise control of the inverse electromotive constant KE of a motor or a generator so that a motor or a generator with a fixed volume can be designed to have a high rotary speed. The flat coil can be wound with a high volume occupying ratio so that the cross section of a flat coil is larger than that of the round coil so as to reduce the copper wire resistance. Therefore, the motor or generator using the flat coil has a higher operation efficiency and has a higher rated highest operation speed.

Abstract: A brushless D.C. motor comprises a stator, a rotor, and a drive device. An axle tube is extended through the stator and includes a bearing mounted therein for rotatably holding a shaft of the rotor. The drive device detects polarity of a ring magnet of the rotor and drives the rotor to rotate. The drive device is fixed to a stator bobbin or fixed at a position below the ring magnet.

Abstract: A motor includes a rotor equipped with a magnet magnetized in multiple poles, a stator yoke having claw poles with plural pole teeth disposed opposing to one another and arranged in a cylindrical shape extending in an axial direction and around an outer periphery of the rotor in a circumferential direction, a bobbin formed from a coil wound around the stator yoke, and a cylindrical motor case that houses the rotor, the stator yoke and the bobbin. The cylindrical motor case is formed from conductive material and uses as at least a part of the yoke. The motor case defines generally parallel planes tangential to an outer periphery of the coil, and has side wall sections extending in close proximity to the parallel planes and defining plane opening sections, and a part of an outer peripheral surface of the coil of the bobbin protrudes from the opening sections.

Abstract: A terminal of a motor is provided, in which a connection between a coil and an external circuit can be carried out securely and with a good workability, while saving material resources and enhancing safety relating to environmental pollution. A terminal (23) consists integrally of a magnet wire binding section (20) to connect to a magnet wire (4) of a coil (6), an external connection section (21) to connect to an external circuit and a support base section (22) to press-fit into a terminal block (19) of a bobbin (5) and hold the terminal (23), and the magnet wire (4) is plasma welded for connection through to the external connection section (21) (terminal 23). The connection of the terminal is carried out by welding (plasma welding), thus the end of the magnet wire of a motor (1) is connected without using solder containing lead. As a result, since lead is not used, material resources can be saved and safety relating to the environmental pollution can be enhanced.

Abstract: A stator structure of a reciprocating motor is provided. In the stator structure of a reciprocating motor, a bobbin around a coil is wound; a plurality of unit stacked core members 61 of a predetermined thickness, each of which is formed by stacking a plurality of lamination sheets formed of predetermined shaped thin plates, and radially positioned on the outer circumference of the bobbin; and an injection insulator combining the plurality of unit stacked bobbins to an outer circumference of the bobbin. Accordingly, it is possible to reduce the number of parts that form the stator and to simplify the structure of the stator. Therefore, it is possible to reduce time for assembling the parts and processes of assembling the parts, to thus improve assembly productivity.

Abstract: A cylindrical rotor magnet is magnetized in a circumferential direction thereof. A plurality pairs of stator yokes are arranged in an axial direction of the rotor magnet so as to surround the magnet rotor. Each pair of stator yokes is associated with one phase of the motor. A case member holds the stator yokes from both sides in the axial direction of the rotor magnet. A resin member separates the pairs of stator yokes which are associated with adjacent phases of the motor. The resin member further separates the stator yokes from the case member.

Abstract: A combination of a rotor and a supporting structure for the rotor comprises an axle, a fixing member securely mounted in the axle tube, a supporting member securely mounted in a lower end of the axle tube, and a rotor having a shaft base and a shaft extending from the shaft base. The shaft includes an engaging groove. The shaft is extended through the fixing member with an end face of a distal end of the shaft rotatably resting on the supporting member and with the fixing member engaging with the engaging groove of the shaft. The shaft further includes an auxiliary supporting section, the auxiliary supporting section and an inner periphery of the axle tube having a minimal gap therebetween.

Abstract: A coil holder intended to be embedded through an opening in a circuit board or the like, the coil holder comprising a frame part arranged to receive one or more coil sections. The coil holder also comprises one or more connectors including a first and a second soldering pin end, whereby the first soldering pin end is arranged to be connected to a coil section to be wound onto the frame part of the coil holder and the second soldering pin end is arranged to be connected to the circuit board.

Abstract: The present invention provides a motor having an urging member for urging a rotor disposed oppositely to a stator in the axial direction, in which the rotor is rotated in a state under an urging force of the urging member, characterized in that a positional regulation part (bearing) for regulating the position of the rotor in a thrust direction under the urging force is integrally provided in a coil bobbin made of resin which has metallic stator cores making up the stator formed by insert molding. Therefore, the positional accuracy of the positional regulation part (bearing) with respect to the stator is made better. Thereby, the positional accuracy of the rotor with respect to the stator is also improved, so that the torque up is enabled.

Abstract: A compressor comprising a compressing mechanical unit which inhales a refrigerant excluding chlorine, compresses the refrigerant, exhales a compressed refrigerant, and collects a refrigerating machine oil O compatible with the refrigerant, thereby lubricating the compressing mechanical unit with the refrigerating machine oil O, and an electric motor unit having a stator and a rotor, for driving the compressing mechanical unit, the stator being constituted by winding a wire on a stator core, wherein the stator core includes a yoke section and teeth sections, and the wire is directly wound on the teeth sections.

Abstract: A bobbin unit for a brushless alternator field coil, which can reduce the diameter of a bobbin, need not wind a tape and can be made easily, has a ring-shaped iron core having a thick wall; a plate having a hole whose inside diameter is as large as that of the iron core and which is composed of a thin wall cylindrical portion having an end which is abutted against and connected by an abutting/connecting operation to an end surface of the iron core with the axial center of the cylindrical portion being in coincidence with that of the iron core, and a flange portion formed at the opposite side of the cylindrical portion and extending outwardly in a radial direction; and a resinous bobbin interposed between the iron core and the plate for insulating and accommodating a field coil.

Abstract: The invention relates to a rotary electric direct current machine having a rotor (8) mounted on a rotor shaft (9) and being provided with axial winding coils, whereby the coil ends are supported by a generally ring shaped rotor coil support (7) that is centered with reference to the rotor shaft and is supported directly at the axial end of the rotor, adjacent the radially outer region thereof. According to the invention the rotary direct current machine is characterized in that the rotor coil support is provided with a surface area that is considerably enlarged in relation to its circumference. The invention also relates to a rotor for such a direct current machine as well as to a rotor coil support.

Abstract: A canned motor pump has a can separating the rotor and the fluid compartment of the pump from the stator. The stator winding is affixed to a winding carrier which is shoved over and in heat-conducting relation with the can. The casing carries the electronic circuitry for commutating the motor and this circuitry is connected with the stator winding via a plug connector on the carrier.

Abstract: A stepping motor having a rotor consisting of a permanent magnet magnetized such that N poles and S poles are alternately arranged in the hoop direction, stator cores with pole teeth oppositely disposed on the outer peripheral surface of the rotor, and a coil bobbin integrally containing the stator cores as the result of resin molding and being used for supporting a coil wound thereon. In the stepping motor, holes are formed in the coil bobbin, and the holes range from an outer wall of the coil bobbin to the outer peripheral surfaces of the pole teeth. In the stage of resin molding, the dies are brought into contact with the pole teeth by the utilization of the holes, thereby preventing the pole teeth from being declined in the radial direction, and securing a satisfactory rigidity of the coil bobbin.

Abstract: An energy efficient low-power integral electronically commutated fan motor and control circuit assembly mounted on a circuit board for use in refrigerators utilizing a Hall sensor to provide positional control signals for sequential energization of the windings with the Hall sensor energization being pulsed, and the motor stator windings energized only during a portion of the period, when rotational torque produced by the energization is greatest in order to reduce the power input to the assembly. Integrally molded multi-function components including the coil bobbin, ground pin, Hall sensor holder, motor bearing oil well covers, and assembly housing provide positioning, support, and securing assistance along with electrical and magnetic operative connections and positioning.

Abstract: In a stator for an outer rotor-type multi-pole generator, in which coils of an identical type but different from a coil wound around a particular one of cylindrical portions integrally included in a bobbin to cover a plurality of salient poles of a stator core, are wound around a pair of the cylindrical portions adjoining and located on opposite sides of the particular cylindrical portion, a recess concaved inwards in a radial direction of a core base is provided in a guide projection at a location corresponding to the particular one of the cylindrical portions, and a crossover wire is disposed in the recess. Thus, the particular cylindrical portion and the crossover wire can be insulated from each other to ensure a stable insulating property, while avoiding an increase in operating steps.

Abstract: An improved armature winding arrangement for a rotating electrical machine such as a specifically illustrated DC motor for driving a vehicle wheel. The assembly is such that the armature core can be formed from two laminated pieces that are rigidly connected to each other and held against axial movement. This eliminates the need for bonding adhesive. In addition, an improved bobbin arrangement is employed for both permitting attachment of a wiring plate directly to the core but also for retaining the ends of the individual windings to prevent them from becoming loose either during assembly or in operation.

Abstract: A stator structure for a motor of high precision by suppressing influence of electromagnetic noise between windings and a distribution pattern layer in a printed board. A shield is provided between the windings and the distribution pattern layer of the printed board to shield the electromagnetic noise and suppress the influence of the electromagnetic noise to thereby enable precise control of the motor. A multilayered printed board is arranged on an axial end face of the stator core and the windings are formed around the stator core and the multilayered printed board to enfold them toroidally in a regular winding manner. The multilayered printed board comprises a distribution pattern layer for connection with the windings and a shield layer for shielding electromagnetism between the distribution pattern layer and the windings.

Abstract: A stator includes a magnetically conductive tube with a pole plate at one end. The edge of the pole plate functions as a magnetic pole. The other end of the magnetically conductive tube is combined with another pole plate. A coil is wound between the two pole plates. The edges of both pole plates extend in opposite directions to form a larger magnet pole area.

Abstract: An electrical machine having a plurality of pole pieces surrounded by bobbins and upon which individual coil windings are formed. The bobbins are formed by a insulating material in which are embedded electrical connectors that have terminal ends that afford connection to the coil windings and to an external connection for either deriving electrical power in the case the machine operates as a generator or receiving power in the event the device operates as a motor. In addition the individual coils are arranged in groups that can be connected together through internal connections in such a way to provide different electrical outputs without internal taps or redesign of the machine. Thus, cost is reduced and at the same time the device is more compact and has greater efficiency and wider utility.

Abstract: The device of this invention is provided with a disc-shaped spring having an outer peripheral portion placed into contact with an outer race of a bearing and a tapered portion placed into contact with an end portion of a coil yoke, with the configuration being such that the coil yoke is wedged between a concavity 1d of the housing and the upper edge by the elastic force of the disc-shaped spring. It is therefore possible to fix the coil yoke within the housing without having to provide extra components such as a snap ring, which facilitates machining and assembly. In addition, the sealing effect can be increased by placing the disc-shaped spring into contact with the entire periphery of the outer race of the bearing, thus efficiently preventing the intrusion of impurities.

Abstract: A switched reluctance motor having a rotor and a stator is disclosed. The stator has a plurality of peripherally spaced stator poles, each being defined by an inner curvilinear face, which is generally aligned with the curvilinear faces of adjacent stator poles in a circumferential path. A plurality of stator inserts are also provided that are disposed between adjacently spaced stator poles. Each stator insert has a curvilinear face that is generally aligned in the same circumferential path with the curvilinear faces of adjacently spaced stator poles to reduce siren noise. Each stator insert is also constructed to include at least one pocket opposite its curvilinear face for receiving a magnet to facilitate positioning of the rotor relative to the stator poles. Each stator insert is further provided with oppositely extending arms for receiving and mounting a pre-wound stator coil or “wound-in-place” coils.

Abstract: A motor has a rotor rotatable about an axis, a can surrounding the rotor and having an outer surface, and a plurality of outwardly projecting stator supports fixed on the outer surface, and respective stator windings mounted directly on the stator supports. The stator supports project radially of the axis and there are at least three and at most twelve such stator supports and they are angularly equispaced about the axis.

Abstract: The object of the present invention is to provide a rotary electric machine that provides bobbins with good assembling efficiency and allows no dislocation of the stator. A motor 2 comprises a case 4, a stator 6 secured inside the case 4, a rotor 10 formed into one piece with a rotating shaft 8. The stator 6 comprises stator yokes 32 and the stator yokes are secured in a radial manner in the case 4. Furthermore, resin 58 is filled in between the stator 6 and the case 4 with a space for the rotor being left. The stator yokes 32 comprise a salient pole 34, a bobbin 36 for holding the salient pole 34, and a magnetic wire 38 wound around the bobbin 36. A collar 39b of the bobbin 36 is formed so as to contact each other with notches 3 formed on two, upper and lower edge portions. Accordingly, combining two bobbins 36, 36 allows through-holes 5 penetrating the collar 39b thereof.

Abstract: An automotive alternator in which a lead wire of a rotor coil extends along a wall formed in a root portion between claw-shaped magnetic poles so as to be substantially parallel to the axis of a shaft.

Abstract: A brushless DC motor, whose stator (10) is a combination of stator yokes (11, 16). a bobbin (14) on which a magnetic field coil (15) is wound and to which terminal pins are provided, and a base plate (20). The stator (10) is fixed to the base plate (20) by a protrusion (12c) provided on the bobbin (14) or by a flange (18a) formed on a bearing. The widths of magnetic poles (11a, 16a) of the stator, which are measured in the circumferential direction of the stator, are smaller than the width of one of the poles of a rotor magnet (5). Thereby, the position of a stable point is a maximum excitation torque position. Further, a magnetic pole sensing element (21) is provided at a place which is shifted in the circumferential direction from the middle position of one of the magnetic poles of the rotor magnet (5).

Abstract: In an alternator for a vehicle, a stator winding is composed of a plurality of U-shaped conductor segments and an annular member. The conductor segments have connection edges connected to one another to form ring-connected coil-ends, and the annular member covers the ring-connected coil-ends at the connection edges and portions of the conductor segments adjacent the connection edges. The annular member has a prescribed thickness that provides the ring-connected coil-ends with a prescribed stiffness.

Abstract: A stator structure for a direct-current fan motor includes a stator seat, a spindle position thereof being provided with a permeability tube. An even number of winding regions is distributed uniformly around the outer periphery of the permeability tube. The winding regions receive coil windings and each has a hollow interior for receiving a magnetic pole inserted thereinto. One side of the spindle of the stator seat is provided with substrate barbs and frame barbs that secure a circuit board and position the stator structure on a frame.

Abstract: An insulated coil for use in a coil and pole assembly comprising an electrically conductive coil including a plurality of aligned, overlapping turns that are coated with a powder coating material so as to be electrically insulated from each other. The powder coated coil is heated so as to partially cure the powder coating material and then fitted about its associated pole. Once disposed about the pole, the coil is compressed in the vertical and horizontal directions, and heated while in the compressed state to completely cure the powder coating material.

Abstract: An electric motor having a snap-together construction without the use of separate fasteners. The construction of the motor removes additive tolerances for a more accurate assembly. The motor is capable of programming and testing after final assembly and can be non-destructively disassembled for repair or modification. The motor is constructed to inhibit the ready entry of water into the motor housing and to limit the effect of any water which manages to enter the housing.

Abstract: A winding of a motor is formed by coiling a wire around a slotless stator core with combination of troidal coiling and array coiling. The toroidal coiling is carried out in a manner such that the wire is coiled without any intersecting turns in one direction for the formation of the winding as it is coiled rotating spirally. By this coiling method, the accuracy of the position of the winding in the direction tangent to the surface of the stator core can be improved. The array coiling is carried out in a manner such that the winding is formed in layers that are stacked on one another. By this coiling method, the accuracy of the position of the winding in the direction normal to the surface of the stator core can be improved. Thus, the overall thickness of the winding can be made uniform.

Abstract: The movement has a rectangular section case for accommodating a magnet rotor so as to turnably support the magnet rotor engaged with a pointer spindle. A pair of inner core bobbins wound by an electrical wire each are slidingly engaged with the case through the rectangular opening so as to be opposed to each other. A pair of outer bobbins wound by an electrical wire each are slidingly engaged with the pair of inner core bobbins through a rectangular opening of each outer bobbin so as to be opposed to each other. Each of inner and outer bobbins may have an outer frame plate which has a pair of electrical terminals at the middle thereof. The pair of terminals may consist of upper and lower terminals. The outer frame plate may be provided with a terminal retainer for securing the pair of terminals.

Abstract: A seal for a generator stator end winding seals the gap between the annular air shield and a radially inner surface of the stator end winding. The seal includes a first flat piece layer formed of a flexible rubber material and having an inner diameter side and an outer diameter side. A plurality of first radial slits are formed across the outer diameter side. A second flat piece layer is disposed in a layered configuration with the first flat piece layer. The second flat piece layer is formed of the same flexible rubber material. A plurality of second radial slits are formed across the outer diameter side of the second flat piece layer and are offset from the first radial slits in the layered configuration. The seal is secured in a radial groove formed in an end of the air shield by a locking dowel and/or glue. With this arrangement, a reliable seal is configured that is inexpensive to manufacture and easy to install.

Abstract: In a method to manufacture a stator by coupling a plurality of core segments as so to compose a serial body of core segments and rounding the serial body into an annular body, a stator which method can secure an optimum length of a connected wire by preventing the connecting wire from being too long or too short between the core segments at a stage to round the serial body of core segments into the annular body and method of manufacturing thereof are provided. A member to form a motor stator is composed of a plurality of core segments which are movably coupled, a plurality of insulators which cover the core segments and have head portions having spaces allowing a connecting wire to pass therethrough, and the coil wire which is wound around the core segments to form a coil and serves as a connecting wire passing through the head portions, the member being capable of securing an optimum length of the connecting wire.

Abstract: A flanged part of an insulating bobbin is formed with a first hook part for directing a lead wire of a field coil in a radially inward direction along an end surface of the flanged part, and a second hook part for directing the radially inwardly directed field coil in an axial direction. The lead wire of the field coil is arranged to extend in the radial direction from a coil-winding part of the field coil through the first hook part, and to extend in the axial direction through the second hook part.

Abstract: A rotor for an automotive alternator comprises a cylindrical bobbin having a cylindrical portion, a pair of first and second annular flange portions projecting perpendicularly from both ends of the cylindrical portion, a recessed groove disposed at an angle to the radial direction in the inner wall of the first flange portion, and an anchor portion disposed on an outer circumferential portion of the first flange portion in close proximity to the outer circumferential end of the recessed groove, the bobbin being fitted over the base portions of the pair of field cores; and a field winding wound a predetermined number of turns into multiple layers on the cylindrical portion of the bobbin, wherein the field winding has a flat shape, the starting end of the field winding being wound around the anchor portion and housed in the recessed groove, then drawn from the inner circumferential end of the recessed groove onto the outer circumferential surface of the cylindrical portion of the bobbin, and additionally taken

Abstract: An outer rotor-type multi-pole generator includes a plurality of coils wound around a large number of protruding poles provided around an outer periphery of a stator core through a bobbin, and terminal members fitted into fitting tube portions integrally provided on the bobbin to pass through the stator core over opposite ends of the stator core. Each of the coils is connected to one end of the terminal member. Each of the terminal members includes a flat plate-shaped base portion fitted into the fitting tube portion and a clamping plate portion protruding sideways from one end of the base portion. The end of the coil is connected to the one end of the terminal member by fusing with the clamping plate portion being folded in such a manner that the end of the coil is clamped between the clamping plate portion and one end of the base portion. Thus, the operation for connecting the coils to the terminal members is facilitated, and the number of steps of the connecting operation is reduced.

Abstract: A slot-less motor for super high speed driving by which a stator coil is not detached from a housing even at a super high speed of rotation of the slot-less motor, and an air gap flux density for super high speed driving is easily obtained and is uniformly maintained, the slot-less motor employing a stator coil bonded to an inner surface of a housing for maintaining an air gap with a rotor magnet fixed to a rotor shaft to form a stator, wherein the slot-less motor comprises a cylindrical stator ring made of material with low relative magnetic permeability and disposed between a magnet and a stator coil in order to maintain an air gap flux density appropriate for super high speed rotation, and for being distanced from the magnet at a predetermined space to press the stator coil and to be fixed by a coupling unit for fixation and keep within a predetermined space.

Abstract: A dynamoelectric machine having a wire retaining device constructed to frictionally retain the quadrature winding to allow automated winding of the quadrature winding. The wire retaining device includes stator end caps having integrally formed wire retention elements at the radially inner end of the stator tooth. The wire retaining device frictionally holds the wire in place as the quadrature winding is automatically wound about the stator. In addition, the stator end caps electrically insulate the quadrature winding from the stator and the main winding.

Abstract: The present invention relates to a stator for a linear motor by staggered core lamination which can facilitate insulation and assembly of a stator core, can freely set an interval of an opening of the stator core, and can reduce loss of the motor by decreasing a magnetic flux density of the core.

Abstract: A pole cap insulator is used in a field assembly of a motor having a cylindrical motor frame where the field assembly includes a winding having a central opening therein, and a pole member having a base portion with side surfaces and top and bottom surfaces. The pole cap insulator includes a generally rectangular body portion having a back edge disposed proximal the motor frame, and side boundaries disposed opposite each other. The body portion has a radially inwardly facing edge disposed opposite the back edge and tapered tip portions outwardly extending from opposite side boundaries cooperating with the radially inwardly facing edge to form a curved edge corresponding to a curved contour of the pole member.