257results about "Slip-rings manufacture" patented technology

In a state in which a first divisional core and a second divisional core are arranged in a state spaced from each other and adjacent to each other, a first coil and a second coil are each wound around a tooth. The first coil and the second coil are in the same phase. In a state in which a plurality of divisional cores are arranged annularly so that their teeth are oriented in a radially inward direction, the first divisional core and the second divisional core are not adjacent to each other in the circumferential direction. A plurality of connection wires are shaped to converge at an end surface of a stator core. This facilitates the winding of the coils around the divisional cores. Further, the connection wires can be shortened.

A direct-current motor includes a stator having a magnetic field system, a rotor disposed around the stator, a commutator which rotates together with the rotor, and power supply brushes which are urged in the axial direction by urging members so as to come into contact with the sliding contact surfaces. The rotor includes an armature core around which armature coils are wound, and a rotary shaft which rotates together with the armature core. The commutator has segments extending radially. The segments have sliding contact surfaces orthogonal to an axial line of the rotary shaft. At least a part of each power supply brush comes into contact with the sliding contact surface at a position further radially outward than the armature coil.

A device for transferring electric currents that includes a slip ring unit that has a rotor with connecting wires and a stator and a printed circuit board fastened to the rotor, wherein the printed circuit board includes connectors in electrical contact with the connecting wires, wherein a torque required for rotary movement between the rotor and the stator is introduced via the printed circuit board.

The invention provides a radial insulation laminated conductive slip ring which belongs to electrical rotary adapter. Conductive ring sheets 3 and insulation sheets 4 are interval arranged on a slip ring shaft 1, and a section of the slip ring shaft 1 surface for mounting the conductive ring sheet is coated with polymer insulation material to guarantee the insulation between the slip ring shaft 1 and the conductive ring sheet 3. A brush 7 mounted on a brush bracket 9, which is mounted on a shaft sleeve 2, tightly contacts with the conductive ring sheet 3, rolling bearings are disposed between the slip ring 1 and the shaft sleeve 2 for supporting, when the slip ring 1 rotates relative to the shaft sleeve 2, the transmission for multi-channel electrical signals between the relative rotating parts can be realized via conductive ring sheet lead-out wires 8 and brush lead-out wires 6. The invention effectively simplifies the production procedure, and reduces the radial size of the slip ring, and increases the stiffness of the shaft.

In the device for producing a ring core, a drop-through blanking die (46) constituting a rotor core production line (30) is used to mold a ring core by laminating a plurality of split core plates (12, 16) while arranging them in a ring shape. The drop-through blanking die (46) consists of a rotary mechanism (55) for rotating the split core plates (12, 16) thus laminated through a predetermined angle, an inner guide member (62) being arranged on the inner circumferential side of the split core plates (12, 16) laminated in a ring shape, and an outer guide member (58) being arranged on the outer circumferential side of the split core plates (12, 16). While the split core plates (12, 16) are supported by any one of the inner guide member (62) and the outer guide member (58), a pressure is imparted to the split core plates (12, 16) by the other.

An electric motor has a stator in which an armature is disposed. The armature has a lamination stack having slots in which magnet wires are wound. An armature shaft extends coaxially through the lamination stack and a commutator is disposed on the armature shaft to which ends of the magnet wires are electrically coupled. The magnet wires are at least partially encased in thermally conductive plastic. When the thermally conductive plastic is molded, a balancing feature is formed of the thermally conductive plastic. In aspects, the balancing feature can include a layer of the plastic from which plastic can be removed during balancing; one or more balancing rings adjacent axial sides of the lamination stack from which plastic can be removed to balance the armature; or one or more balancing rings having one or more pockets therein in which one or more weights are disposed to balance the armature.

The inventive method of assembling conductive segments (16) of a rotor winding or a stator winding in a rotary electric machine comprises the following stages: insertion of the conductive segments (16) into slots made in a core (12) of the rotor or stator, whereby the free ends of the conductive segments protrude beyond the latter, and welding of the free ends of the conductive segments in groups of two in order to form a winding (14) around the rotor or stator. The conductor statements are both made of wire which is electrically conductive and coated with an electrically insulating material. The coating of electrically insulating material is removed in the welding zone of the conductive segments by the means used for welding the latter. The invention can be used for conducting segments of a rotor or stator winding in an alternator in a motor vehicle.

The invention relates to a revolving and slip ring type circuit connector. It consists of spindle, insulating piece, conducting ring, bearing shell. The insulation piece and conducting ring with wire each sleeves on the triangle major axis. Then the bearing shell is sleeved and the dung is injected. The conducting revolving axis is easily made. The invention divides the conducting revolving axis into several individual component parts and changes the injection mould technology into lamination adhesive bonding technology.

A stator of a rotary electric machine having secured core slot insulators includes a multi-phase stator winding, having a plurality of slot segments that are adapted to be radially inserted into a plurality of circumferentially spaced axially-extending core slots in a surface of a cylindrically-shaped stator core. The stator winding includes the plurality of slot segments alternately connected at the first and second ends of the stator core by a plurality of end loop segments to form the winding. The plurality of core slots house an insulator to electrically isolate the slot segments from the core slots. The insulator is secured to the sides of the core slot prior to the process of radial inserting the plurality of slot segments into the plurality of core slots of the cylindrically-shaped stator core.

A stator coil of a rotary electric machine such as an alternator for use in an automobile is composed of a plurality of U-shaped conductor segments inserted into slots formed in a stator core. Each segment has a head portion and two legs extending from the head portion. The plurality of segments include regular segments each having a regular distance between two legs (a regular slot-pitch) and special segments each having a special slot-pitch different from the regular slot-pitch. The head portions of both the regular and the special segments are simultaneously twisted to form the respectively required slot-pitches after a preliminary twist is given to the special segments. In this manner, a process of manufacturing the stator coil is simplified.

A method for repairing or servicing a wye ring of a generator includes the steps of, dismantling the generator to gain access to the wye ring, determining a fault location in the wye ring; and attaching a patch to the wye ring in an area of the fault location. The patch provides an electrical path around the fault location so that the generator is repaired.

A production method of a polyphase sequentially joined-segment coil of a rotary electric machine and a product produced by the same are provided. A production machine includes pairs of tines working to catch heads of conductor segments when they are twisted using rings. The tines are designed to be rotatable about an axis of the rings following rotation of the rings to absorb stress acting on insulating coating on the heads of the segments to minimize rubbing of the insulating coatings, thereby ensuring a desired degree of electrical insulation of the stator coil.

An outer rotor type multi-pole generator stator is provided in which a lead wire extending from a coil is connected by fusing to a connecting terminal fitted into and fixed to a bobbin wherein, in order to avoid the lead wire becoming slack after connection by fusing and enable assembly of the stator to be carried out efficiently, the connecting terminal (32) is formed from an external conductor connection terminal portion (32a) that is fitted into and fixed to a fitting hole (31), a connecting plate portion (32b) having one end thereof connected at right angles to the external conductor connection terminal portion (32a) and extending toward the radially inner side of the stator, and a clamping plate portion (32c) provided so as to be connected to the connecting plate portion (32b) so that the lead wire (33) can be held between the clamping plate portion (32c) and the other end portion of the connecting plate portion (32b) and connected by fusing, and the bobbin (24) is provided on the inner periphery thereof with a channel (43) having one end thereof facing the other end of the connecting plate portion (32b) and opposite ends thereof open so that one electrode of a pair of electrodes (44, 45) for connecting by fusing can be inserted through the channel (43).

In accordance with one embodiment, the present technique provides an apparatus for assembling a rotor. The exemplary apparatus includes a base that has a central aperture and a seating surface for receiving the rotor. An arbor then extends through the central aperture, the arbor having a longitudinal axis that is substantially orthogonal to the seating surface, and including threaded ends opposite with respect to one another. The exemplary apparatus also includes at least one member of a family of fixtures coupleable to the arbor, the family including a pressure fixture that has first and second piston assemblies disposed at diametrically opposite locations to one another, the family also including a support fixture coupleable the arbor and having members extending axially therefrom, the members being configured to support securing members of the rotor. Advantageously, the exemplary apparatus provides for a mechanism through which a securing member may be symmetrically installed with respect to the rotor core, thus improving rotor performance and construction.

An electric motor and method for reducing or eliminating end play. The motor comprises an adjustment member that cooperates with an end lamina member to facilitate reducing end play. The adjustment member is slidably mounted on an armature shaft and inside an aperture of a portion of the end lamina tube to reduce or eliminate end play. Thereafter, the adjustment member is permanently secured to the end lamina tube. In another illustrative embodiment, the movable bearing retainer sets endplay and also retains brushes in an open position prior to, for example, assembly of the motor.