A method for putting an FSM rotor, having the following steps: arranging the FSM rotor to be potted having upright alignment in a potting mold; introducing a first casting compound from below into the casting mold until a certain pre-fill level is reached, at which the first casting compound extends at least up to the lower end face of the rotor winding; introducing a second potting compound from above into the potting mold, wherein the second potting compound is poured onto the rotor winding and is drawn into the rotor winding; further introducing of the first potting compound from below into the potting mold until a certain final fill level is reached; and curing of the potting compounds.

A tool, in particular for encapsulating or casting rotors of electric machines, having an arrangement space which extends along a longitudinal axis and is designed to arrange and encapsulate or cast a component, wherein the arrangement space is delimited at least in sections by at least one adjusting tool, the position of which can be adjusted in such a way that a size of the arrangement space can be changed.

A magnet embedded core is manufactured in a stable manner by preventing an excessive pressurizing force from being applied to the laminated iron core and performing the clamping with an appropriate pressurizing force so that the leakage of the resin out of the magnet insertion holes can be minimized, and the reduction in the geometric and dimensional precision of the laminated iron core may be suppressed. An electric die clamping device is used, such that a laminated iron core is placed on one of a fixed die and a moveable die and upon clamping by the die clamping device, the other of the fixed die and the moveable die is caused to abut onto an end surface of the laminated iron core to close openings of magnet insertion holes and pressurize the laminated iron core in a laminating direction.

An apparatus for automated encapsulation of motor rotor core with magnet steel is introduced. The apparatus includes at least one encapsulation unit, a plastic granule feeding device, a waste removing device, a conveyance device and a control device. Under a coordinated control of the control device, a rotor core feeding mechanism of the encapsulation unit feeds rotor cores to a plastic dispensing mechanism in cycles, the plastic granule feeding device separates, outputs and dispenses plastic granules, so that they are arrayed before being dispensed onto the rotor cores, and the conveyance device conveys plastic granules and moves the waste removing device to carry waste to a waste removal zone. With these arrangements, it is able to realize automated feeding of rotor cores, automated feeding of plastic granules and automated removal of waste to achieve completely automated rotor core encapsulation operation while enables mass production of motor rotor cores.

Disclosed is a rotor for a compressible fluid pump, in particular a blood pump that can be introduced into a patient's body through a blood vessel; said rotor comprises one or more impeller elements, is compressible and expansible between an expanded state and a compressed state, is made at least in part of a fiber-reinforced plastic material, is provided for rotating about an axis of rotation, and is characterized in that in the expanded state of the rotor, a first percentage, i.e. more than 30%, in particular more than 50%, of the fibers runs substantially straight between the first end (10a, 11a, 13a) thereof lying closest to the axis of rotation and a second end lying further away from the axis of rotation. According to the invention, the rotor retains its shape very well even when subjected to repeated mechanical stress.

Various embodiments of the teachings herein include an electrical insulation system for an electric motor comprising a conductor with wire winding in a slot of a laminated core of a stator. The wire winding is embedded in an encapsulation. The encapsulation includes volume-increasing particles.

Various embodiments of the teachings herein include an electric insulation system of an electric motor comprising a conductor with a wire winding in a slot of a laminated core of a stator of the electric motor. Wires in the conductor are potted by impregnating resin on and in a carrier. The carrier is loaded with impregnating resin and is arranged between the winding wires in the conductor. Cavities of the conductor are filled with the impregnating resin. The impregnating resin provides potting for the cavities in the conductor of the laminated core.

To allow necessary movement of a magnet in a magnet insertion hole during a manufacturing process so that a magnet embedded core in which the magnet is positioned as designed can be manufactured efficiently, a lower plate (12) and an upper plate (14) configured to contact against the end surfaces of a rotor core (2) are provided with pin members (37, 39) configured to enter a magnet insertion hole (4) to allow movement of a magnet (5) in a first direction, which is a separation direction of two mutually opposing inner surfaces (4C, 4D) of a magnet insertion hole (4), and to restrict movement of the magnet in a second direction orthogonal to the first direction as viewed in the axial direction of the magnet insertion hole (4), in a state where the magnet insertion hole is not filled with resin.

A method for manufacturing a laminated iron core includes preheating a laminated body in which a plurality of iron core pieces are laminated and which includes a resin filling hole, measuring a temperature of the laminated body after preheating the laminated body, determining whether or not the temperature measured is within a predetermined range, feeding the laminated body into a molding device in a case where it is determined that the temperature is within the predetermined range, and filling the resin filling hole of the laminated body with a resin material in the molding device.

To automate setting of coupling rods when using a rotor core retaining jig and thereby to improve the production efficiency of a magnet embedded core, a setting device includes: a support base (42) on which the rotor core retaining jig (10) is to be placed; an opposing base (46) joined to the support base 42 to oppose the support base (42); a pressurizing device (48) provided on the opposing base (46) and configured to pressurize an upper plate (14) of the rotor core retaining jig (10) on the support base (42) toward a lower plate (12); chuck devices (126) provided on the support base (42) to releasably grip the coupling rods (30) and capable of moving between a separated position where the coupling rods (30) are separated from engagement grooves (32, 34) and an engaged position where the coupling rods (30) engage the engagement grooves (32, 34); and a fluid pressure cylinder device (120) provided on the support base (42) to drive each chuck device (126) between the separated position and the engaged position.