Abstract: Provided is a manufacturing device and a manufacturing method for a rotor core that can prevent damage from being caused to an end of a magnet due to movement of the magnet when injecting a resin material. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole, a second mold that is engaged with the first mold and clamps and seals the laminated iron core together with the first mold, a resin injection unit that is provided to the second mold, and injects a resin material into the magnet insertion hole, and a magnet positioning and holding mechanism that positions and holds the magnet in a state of being fit into the fitting recess of the first mold.

Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.

Abstract: Provided is a manufacturing device for a rotor core and a manufacturing method for a rotor core in which it is possible to suitably fit a columnar core rod into a center hole of a laminated iron core, when fitting and installing the laminated iron core into a fitting recess of a first mold.

Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.

Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.

Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.

Abstract: Provided is a manufacturing device for a rotor core and a manufacturing method for a rotor core in which it is possible to suitably fit a columnar core rod into a center hole of a laminated iron core, when fitting and installing the laminated iron core into a fitting recess of a first mold.

Abstract: Provided is a manufacturing device and a manufacturing method for a rotor core that can prevent damage from being caused to an end of a magnet due to movement of the magnet when injecting a resin material. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole, a second mold that is engaged with the first mold and clamps and seals the laminated iron core together with the first mold, a resin injection unit that is provided to the second mold, and injects a resin material into the magnet insertion hole, and a magnet positioning and holding mechanism that positions and holds the magnet in a state of being fit into the fitting recess of the first mold.

Abstract: Provided is a device for manufacturing a rotor core with less magnetic flux leakage, a method for manufacturing the rotor core, and a rotor structure. Included are a first mold including a fitting recess that fits and holds a laminated iron core in which a magnet is inserted into a magnet insertion hole; a second mold that clamps and seals the laminated iron core together with the first mold; a resin injection unit that is provided to the second mold and injects a resin material in the magnet insertion hole by using a molding machine; and a protrusion that is inserted into the magnet insertion hole by a predetermined insertion amount, and positions and holds the magnet by an end of the magnet being brought into contact with the protrusion, in a state of the first mold and the second mold being clamped.

Abstract: A machine learning system according to an embodiment of the present invention includes a state observer for observing the winding temperature, winding resistance, current value, and rotor magnetic flux density of a magnetization unit having a magnetizing yoke and windings; a reward calculator for calculating a reward from the rotor magnetic flux density obtained by the state observer; and a learning unit for updating an action value table based on a magnetization rate calculated from the rotor magnetic flux density and a target magnetic flux density, the winding temperature, and the winding resistance.

Abstract: A motor according to the present invention includes an output axis, a brake for holding the output axis, a sensor for detecting an external torque applied to the output axis from outside, and a controller for decreasing or increasing the torque of the brake during operation of the brake in accordance with an increase or decrease in the external torque detected by the sensor.

Abstract: To provide an electric motor capable of reducing the number of work processes for airtight testing, by having a pressure sensor capable of detecting the pressure of an internal space. A motor having an internal space sealed relative to an external space includes: a main body part having a first space constituting the internal space, a stator part that is arranged to be housed in the first space and has a winding, and a rotor part that is entirely or partially arranged to be housed in the first space and has an output shaft; a detection part having a second space that constitutes the internal space and is in communication with the first space; a pressure sensor arranged at the internal space and capable of detecting the pressure of the internal space; and an output part that outputs information of the pressure detected by the pressure sensor out of the motor.

Abstract: A motor according to the present invention includes an output axis, a brake for holding the output axis, a sensor for detecting an external torque applied to the output axis from outside, and a controller for decreasing or increasing the torque of the brake during operation of the brake in accordance with an increase or decrease in the external torque detected by the sensor.

Abstract: A machine learning system according to an embodiment of the present invention includes a state observer for observing the winding temperature, winding resistance, current value, and rotor magnetic flux density of a magnetization unit having a magnetizing yoke and windings; a reward calculator for calculating a reward from the rotor magnetic flux density obtained by the state observer; and a learning unit for updating an action value table based on a magnetization rate calculated from the rotor magnetic flux density and a target magnetic flux density, the winding temperature, and the winding resistance.

Abstract: Through a housing of an electric motor, an output shaft attached to a rotor penetrates. In this housing, an air tightness test hole of the electric motor which communicates with internal space of the electric space formed with the housing and a stator is formed. Further, an oil seal which blocks aeration between the internal space and an outside of the electric motor is attached to this housing.

Abstract: A stator includes a stator core, a pair of housings arranged at either end of the stator core, a rod inserted into a through-hole formed in the stator core, and a bolt inserted into a through-hole of the housings and connected to a protrusion of the rod protruding from either end surface of the stator core to fasten the stator core and the housings. A sealing member formed of a sealant, which is expanded and hardened by heating, is arranged at least partially around the rod.

Abstract: A rotor which can raise the axial direction strength near the end edges outside of the rotor core in the radial direction. The rotor comprises a shaft, a rotor core which has a plurality of magnetic steel sheets and is fastened to the shaft, and a plurality of magnets which are arranged inside of the rotor core. The rotor core has a center hole which holds the shaft, a plurality of magnet holes which are arranged at the outside of the center hole in the radial direction and hold magnets, resin holes which are arranged at the outsides of the magnet holes in the radial direction and which run through the rotor core in the axial direction, and rotor core fastening members which include first resin parts which are filled inside the resin holes.

Abstract: Through a housing of an electric motor, an output shaft attached to a rotor penetrates. In this housing, an air tightness test hole of the electric motor which communicates with internal space of the electric space formed with the housing and a stator is formed. Further, an oil seal which blocks aeration between the internal space and an outside of the electric motor is attached to this housing.

Abstract: A housing of an electric motor is fitted with an oil seal having the function of sealing an output shaft (rotary shaft) of the motor. The housing is provided with a hole for motor airtightness testing communicating with an internal space of the motor. A local or annular projection configured to close the hole for motor airtightness testing, thereby maintaining the airtightness of the internal space of the electric motor, is disposed on that surface of the oil seal which faces the housing.

Abstract: A housing of an electric motor is fitted with an oil seal having the function of sealing an output shaft (rotary shaft) of the motor. The housing is provided with a hole for motor airtightness testing communicating with an internal space of the motor. A local or annular projection configured to close the hole for motor airtightness testing, thereby maintaining the airtightness of the internal space of the electric motor, is disposed on that surface of the oil seal which faces the housing.