摘要:
An electric motor, more particularly, a rotor structure of an electric motor comprises: a stator including a plurality of teeth and coil wound on the teeth to form rotary magnetic flux by applied electric source; a rotary shaft; and a rotor rotatably installed in the stator, the rotor including a shaft insertion hole so that the rotary shaft can be inserted therethrough and fixed, wherein, the rotor includes a plurality of permanent magnet insertion slots of ‘V’ or ‘U’ shape formed in radial direction as centering around the shaft insertion hole, and permanent magnets are inserted and fixed into the permanent magnet insertion slots respectively, and a plurality of air gap expanding portions, on which air gaps from the teeth of the stator are expanded, are formed on an outer circumferential surface of the rotor.
摘要:
Disclosed is a stator of an induction motor, the induction motor comprising: a stator provided with a main winding coil and an auxiliary winding coil at a plurality of slots formed at a body of the stator; an induction rotor rotatably inserted into the stator; and a magnet rotor rotatably inserted between the stator and the induction rotor. Coil spans, intervals between the slots of the stator, are different each other thus to have an increased counter electromotive force induced to the main winding coil at the time of driving, thereby enhancing efficiency of the motor. Also, end lengths of the main winding coil and the auxiliary winding coil become short and the structure becomes simple, thereby reducing a consumption amount of the coil and facilitating a coil winding work.
摘要:
Disclosed is a magnetizing apparatus of an induction motor comprising: an outer magnetizer arranged at an outer circumferential surface of a magnetic substance that forms a magnet of an induction motor, for magnetizing the outer circumferential surface of the magnetic substance; an inner magnetizer arranged at an inner circumferential surface of the magnetic substance, for magnetizing the inner circumferential surface of the magnetic substance; and a magnetizing power supplier for supplying a magnetizing power source to the outer magnetizer and the inner magnetizer. The outer and inner circumferential surfaces of the magnetic substance are simultaneously magnetized, so that a magnetized area of the magnetic substance is increased, a magnetic force of the magnet is increased, and a motor efficiency is enhanced.
摘要:
A driving circuit for improving starting of a hybrid induction motor and its method includes a capacitor for operation electrically connected between a main coil and a auxiliary-coil, and a starting and current cutting-off means electrically connected with the capacitor for operation, applying a high starting current to a motor in starting, and cutting off the starting current when the motor is operated at a synchronous speed after the starting, so that a satisfactory starting characteristic can be obtained by increasing output under a low voltage state in starting, and effective operation can be performed by decreasing output under a normal operation state after the starting is completed.
摘要:
A line start reluctance synchronous motor comprises: a single phase stator arranged at an inner circumferential surface of a motor body and on which a main coil and a sub coil are wound; a magnet unit free-rotatably arranged along an inner circumferential surface of the stator in order to maintain an air gap with the stator; and a cage rotor provided with a rotation shaft at a center portion thereof to be rotatable along an inner circumferential surface of the magnet unit, provided with a cage bar at a peripheral portion thereof, and provided with magnetic barriers having the same pole numbers as the magnet unit.
摘要:
A line start reluctance synchronous motor includes: a single phase stator arranged at an inner circumferential surface of a motor body and on which a main coil and a sub coil are wound; a magnet unit free-rotatably arranged along an inner circumferential surface of the stator in order to maintain an air gap with the stator; and a cage rotor provided with a rotation shaft at a center portion thereof to be rotatable along an inner circumferential surface of the magnet unit.
摘要:
A driving circuit for improving starting of a hybrid induction motor and its method includes a capacitor for operation electrically connected between a main coil and a auxiliary-coil, and a starting and current cutting-off means electrically connected with the capacitor for operation, applying a high starting current to a motor in starting, and cutting off the starting current when the motor is operated at a synchronous speed after the starting, so that a satisfactory starting characteristic can be obtained by increasing output under a low voltage state in starting, and effective operation can be performed by decreasing output under a normal operation state after the starting is completed.
摘要:
A single phase induction motor comprises: a stator installed at an inner circumferential surface of a motor body, the stator on which a plurality of coils are wound; a rotor rotatably installed at a center portion of the stator and provided with a rotation shaft at a center thereof; and a magnet unit freely and rotatably installed between the stator and the rotor with an air gap.
摘要:
Disclosed is a stator of an induction motor, the induction motor comprising: a stator provided with a main winding coil and an auxiliary winding coil at a plurality of slots formed at a body of the stator; an induction rotor rotatably inserted into the stator; and a magnet rotor rotatably inserted between the stator and the induction rotor. Coil spans, intervals between the slots of the stator, are different each other thus to have an increased counter electromotive force induced to the main winding coil at the time of driving, thereby enhancing efficiency of the motor. Also, end lengths of the main winding coil and the auxiliary winding coil become short and the structure becomes simple, thereby reducing a consumption amount of the coil and facilitating a coil winding work.
摘要:
A rotor of a synchronous reluctance motor is provided. The rotor may include a laminated core including a plurality of laminated silicon steel sheets being equally divided into a plurality of regions with respect to a central portion of the plurality of silicon steel sheets. Each of the plurality of regions may include a plurality of barriers. Guide pin holes may be formed between adjacent regions so as to receive guide pins therethrough to align the plurality of silicon steel sheets and end caps provided at opposite ends thereof. Rivets may penetrate receiving holes formed at corresponding barriers in each of the respective regions so as to couple the laminated core and the end caps.