Abstract: An automatic toroidal core winding machine, including: a frame, control device, clamping and wire arranging mechanism, winding mechanism, wire delivering mechanism, feeding mechanism, automatic stripping mechanism and wire reclaiming device for reclaiming excessive wires around the shuttle, the winding mechanism including a shuttle and driving device for supporting and driving the shuttle to rotate, the shuttle includes a slider and wire storage and hooking aperture, and the frame includes a detecting and positioning mechanism used for positioning the ring opening, the slider and the wire storage and hooking aperture of the shuttle, and a wire hanging device for hanging the wire allowing the shuttle to store and wind the wire.

Abstract: An object of the present invention is to improve a mechanical strength and to ensure a low magnetic loss without using a supporting member even when amorphous ribbons are used for an inner core. To attain the object, a stationary induction apparatus core of the present invention includes an inner core formed from the amorphous ribbons and outer cores formed from silicon steel sheets, the outer cores being disposed on two sides of the inner core in a depth direction as opposed to a standing direction of the inner core in such a manner as to sandwich the inner core therebetween.

Abstract: A power supply device that allows individual control of an output voltage of a main transformer and an output voltage of a teaser transformer while utilizing output characteristics of the respective transformer when a Scott connected transformer has control equipment arranged on the input side thereof, including first control equipment arranged in one of two phases of the main transformer on the input side in order to control a voltage or a current and second control equipment arranged in one end of a primary coil of the teaser transformer on the input side in order to control a voltage or a current, the control equipment controlling an output voltage of the main transformer and an output voltage of the teaser transformer individually.

Abstract: A magnetically shielded current transformer is provided, which includes a magnetic core module including a core formed in a ring shape by winding plate shape ribbon a plurality of times, a bobbin configured to accommodate the core, and a coil configured to be wound along an outer circumferential surface of the bobbin; a shielding member which is configured to surround an outer circumferential surface and both side surfaces of the magnetic core module, includes through-holes at centers of the both side surfaces, and is formed of iron; and an outer case configured to protect the magnetic core module and the shielding member. Accordingly, a magnetic path is formed by an external magnetic field, which is applied from the outside, via the shielding member and thus the external magnetic field is prevented from being transferred to the magnetic core module, thereby stably blocking influences caused by the external magnetic field.

Abstract: An antenna apparatus includes: an antenna that performs either transmission or reception of electromagnetic waves having a predetermined frequency; a case provided with a mounting surface on a predetermined surface, mounting the antenna on the mounting surface; a radome formed of a transmissive material allowing the electromagnetic waves to pass therethrough, mounted on the mounting surface so as to cover the antenna. A groove portion is formed on the mounting surface. The radome has a thickness corresponding to a value of ½ wavelength of the electromagnetic waves propagating therethrough multiplied by m, where m is positive integer number. The groove portion is formed in a direction forming a predetermined angle with respect to a normal direction of an opening surface of the antenna, to have a depth defined as ½ wavelength of the electromagnetic waves propagating in the groove portion multiplied by n, where n is positive integer number.

Abstract: An electric machine is selectively operated as a transformer for AC voltage operation or as a throttle system for DC voltage operation. A transformer core has two limbs. An additional winding with a first additional partial winding is wound around a first limb and a second additional winding is wound around the second limb. A higher-voltage winding with a first higher-voltage partial winding is wound around the first additional partial winding and a second higher-voltage partial winding is wound around the second additional partial winding. A first traction winding is wound around the first higher-voltage partial winding and a second traction winding is wound around the second higher-voltage partial winding. A first DC voltage winding may be wound around the first traction winding and a second DC voltage winding may be wound around the second traction winding.

Abstract: A method and device for winding a rotor or a stator (2), of a rotary electrical machine, having a series of teeth (21) which are delimited by notches (22). In each notch there are inserted M continuous electric wires (3) constituting a turn; M being equal to 1 or more, characterised in that n×M wires (3) are wound simultaneously in a number n of notches (22), n corresponding to the number of phases and being ?2. The assembly of the M wires (3) constituting a phase, being inserted in a single notch (22). The device for winding has at least two carriages (4, 5), with a series of teeth, delimited by n notches (40, 50). And, likewise corresponding to the winding, each set of M continuous electric wires (3) constituting a turn, is characterised in that M×n wires (3) are inserted simultaneously in the extension of the n notches (22) of the rotary electrical machine in the n notches (40, 50) in the respective carriages (4, 5).

Abstract: For producing a part, a wire is wound so that portions of the wire extend along one another, and the portions of the wire are connected with one another, while during the winding the wire is supported so that the wire is not wound onto a support which fills it completely.

Abstract: The invention relates to a device for winding a coil and to a method of using the device. The invention is particularly beneficial for winding electromagnetic coils around a closed magnetic circuit having no opening, for example in the form of a ring core. The device comprises a helicoidal channel, means for holding the ring core in a defined position within the helicoidal channel, and thrust means for thrusting the wire (10) toward the helicoidal channel. The method employing the device consists in: engaging a first end of the wire in the thrust means for thrusting the wire (10) toward the helicoidal channel; placing the ring core in its defined position; thrusting the wire into the helicoidal channel until the desired number of turns have been formed; releasing the ring core and disengaging the wire from the thrust means; and cutting a second end of the wire.

Abstract: A method is used to wind a toroidal core with a wire obtained from a magazine having a ring shape. The method includes winding the wire onto the toroidal core in a fixed winding plane, rotating the toroidal core during winding, the rotating being about an axis that is perpendicular to a plane of the ring shape of the magazine, and holding the toroidal core using a gripper that moves with the toroidal core during winding.

Abstract: A method of forming a toroid coil on a toroidal body. Ferrous material is attached to conductive wire. Magnetic force is then used to manipulate the conductive wire about the toroid core.

Abstract: The invention provides an apparatus for manufacturing a magnetic wound core of a toroidal transformer. The apparatus in accordance with a preferred embodiment of the invention comprises a control device for controlling the apparatus based on parameters of the core material and the wound core, a supplying device for providing the core material ribbon, a grinding device for grinding the lateral edges of the core material ribbon under the control of the control device, and a winding device for receiving and winding the core material ribbon into the wound core.

Abstract: Two embodiments of winding methods and apparatus for winding coils of a rotating electrical machine where the armature teeth are skewed. The winding mechanism and method operates so that the winding needle does not have to enter to the bottom of the slots between the pole teeth but the wire is wound around the pole teeth from one end thereof with an arrangement for causing the windings to progressively move down the pole teeth as the winding continues.

Abstract: Armature structures and methods that provide very dense coil windings and afford very rapid winding methods at a relatively low cost. In addition the likelihood of damaging the already wound wires by contact with the winding nozzle is substantially eliminated. This is achieved by moving the winding needle in varying distances and directions away from the pole teeth to induce varying degrees of slack in the wire during the winding and when the needle is not in the slot between the pole teeth.

Abstract: The roller assembly includes: a first shaft having a longitudinal axis; a self adjusting pressure drive shaft extending parallel to the longitudinal axis, the self adjusting pressure drive shaft includes: a main body portion having a cylindrical shape; a ring surrounds the main body portion; and a flexible material is disposed between the main body portion and the ring. An apparatus for a continuously winding a transformer core in an electrical transformer includes: a feed assembly for a material, the feed assembly includes a first shaft disposed adjacent a self adjusting pressure drive shaft, the self adjusting pressure drive shaft includes: a main body portion having a cylindrical shape; a ring surrounds the main body portion; and a flexible material is disposed between the main body portion and the ring.

Abstract: The invention relates to a winding or taping device 100 to be disposed next to a toroidal winding device 700 which has an annular magazine designed for wire and/or tape guiding and magazining. The magazine is guided through a toroidal core opening and is rotatable about its rotationally symmetrical axis that is vertically aligned to the toroidal core axis and disposed on a magazine guide 120 movably with respect to a base 120 supporting the magazine 130.

Abstract: A toroidal core automatic winding apparatus has a winding ring positioned concentrically around a supply ring. The rings are C-shaped, by virtue of a through-slit on each ring. Wire wound on the supply ring is drawn out towards a toroidal core, via a wire guide on the winding ring. A ring rotation mechanism rotates the supply ring and winding ring in the same direction as that in which the supply ring was rotated when being loaded with the wire, but at mutually different speeds, to wind the wire around the toroidal core. The difference in the rotation amounts of the supply ring and winding ring equals the length of the wire that is wound on the toroidal core.