Abstract:
본 발명은 일체형 권선을 활용한 반경 방향 및 축 방향 자속 일체형 모터에 관한 것으로서, 속이 빈 원통형 케이스의 형상인 회전자 코어(core)와 회전자 코어의 내측 벽과 내측 상부에 각각 내측면용 영구 자석과 천장면용 영구 자석이 결합되고 샤프트(shaft)를 중심으로 회전하는 회전자(rotor), 회전자에 장착된 내측면용 영구 자석과 천장면용 영구 자석으로부터 생성되는 서로 수직인 반경 방향 및 축 방향 자속에 각각 대응할 수 있도록 양방향의 고정자 코어(core)를 구비하고, 고정자 코어와 결합되는 일체형 권선(coil)을 포함하며 회전자의 내부로 결합되는 고정자(stator)를 포함하며, 이를 통해 반경 방향 모터와 축 방향 모터를 하나의 모터에 집적하여 효율과 출력을 모두 증대시킬 수 있고, 서로 수직 방향인 반경 방향 및 축 방향 자속을 모두 이용함으 로써 동손, 철손, 풍손 및 마찰손과 같은 모터의 전체 손실을 줄일 수 있으며 이로 인해 소비전력의 소비량을 감소시킬 수 있는 효과를 지닌다.
Abstract:
본 발명은 홀센서를 이용한 모터의 온도 추정 장치 및 방법에 관한 것으로, 디지털 홀센서가 모터에 포함된 회전자의 위치를 검출하여, 회전자의 상대적인 위치에 따라 운전구간에서 온(on) 신호를 출력하고 비운전구간에서 오프(off) 신호를 출력하고, 온도 판단 모듈이 디지털 홀센서의 출력 파형에 따라 운전구간이 지속되는 시간과 비운전구간이 지속되는 시간 사이의 시간차를 계산한 후, 해당 시간차에 대응하는 온도를 참조하여 모터의 온도를 판단하는 과정을 포함하며, 이를 통해, 모터 내부에 온도 센서를 장착하지 않고도 모터 내부의 온도를 추정할 수 있으며, 모터를 소형으로 유지할 수 있고 제조 비용을 절감할 수 있다.
Abstract:
본 발명은 유도기동형 동기 전동기의 회전자에 관한 것으로, 이러한 본 발명은 외주면을 따라 다수개의 슬롯이 마련되며 중앙에는 샤프트가 압입되도록 마련되는 샤프트 결합홀을 가지는 회전자 코어, 상기 회전자 코어의 상하를 관통하도록 형성되며 회전자 코어의 중심을 기준으로 대칭되도록 배치되데 회전자 코어를 중심으로 방사상으로 배치되는 다수개의 자석 배치홀, 상기 자석 배치홀의 단면 길이보다 짧은 단면 길이를 가지며 상기 자석 배치홀의 중심에 배치되어 양 측변에 자속 장벽을 형성하도록 배치되는 영구자석, 상기 영구자석의 양 측변에 마련되는 자속 장벽들을 포함하는 것을 특징으로 하는 유도 전동기의 회전자 모듈의 구성, 이를 포함하는 유도 전동기 및 이의 제조 방법의 구성을 개시한다.
Abstract:
The present invention relates to an axial flux motor. In the present invention, disclosed are the axial flux motor and an operating method thereof, wherein the axial flux motor includes: a permanent magnet arranged on the front side of a rotor body with a preset space; a stator which includes a stator body facing the rotor and a stator part on which a coil for the movement of the rotor is arranged by corresponding to the permanent magnet; a shaft fixedly arranged on the center of the rotor, and an air gap variable structure arranged on the center of the stator and supports the vertical movement of the shaft.
Abstract:
PURPOSE: A surface-mounted permanent magnet motor and a rotor included in the same are provided to allow elimination of permanent magnets with one polarity in a traditional structure where permanent magnets with N polarity and S polarity are required, thereby remarkably reducing an amount of permanent magnets required for an electrical motor. CONSTITUTION: An electric motor using permanent magnets comprises a stator forming a peripheral part of the electric motor; and a rotor arranged in the center of the stator. The rotor comprises a rotation axis; a rotor core part (121) having a hole at the center and a cylindrical shape; permanent magnets (129) having a first polarity in a direction facing the stator; protrusions (123) protruding from the circumferential surface of the rotor core part in a direction to face the stator and arranged to be alternated with the permanent magnets for performing as permanent magnets having a second polarity.
Abstract:
PURPOSE: A hall sensor position compensation method of a BLDC electric motor and a BLDC electric motor supporting thereof are provided to implement the accuracy of the control, thereby reducing the malfunction. CONSTITUTION: A motor comprises a stator and a rotor. A plurality of hall sensor detects the rotator position of the motor. A motor control unit (130) applies the position correction value to the motor driving control. An inverter (150) provides the power source which is necessary for the motor driving. A pulse width modulation (PWM) driving unit (140) generates a PWM driving signal. [Reference numerals] (130) Motor control unit; (140) PWM driving unit
Abstract:
PURPOSE: A device for measuring a backlash of a planetary reducer is provided to implement the torsional angle of the planetary reducer in respect to an input torque value of a servo motor into a hysteresis curve shape, thereby measures the backlash of the planetary reducer precisely and effectively. CONSTITUTION: A device for measuring a backlash of a planetary reducer includes a servo motor (110), a first torque sensor (120), a second torque sensor (140), a braking device (150), and a control unit (160). The servo motor provides the driving torque and includes an encoder for measuring the torsional angle of a driving shaft. A side of the first torque sensor is axially joined to the driving shaft, and the other side thereof is axially joined to an input shaft of the planetary reducer so that the first torque sensor measures the input torque of the servo motor. A side of the second torque sensor is axially joined to an output shaft of the planetary reducer so that the second torque sensor measures the output torque generated in the output shaft. The braking device is axially joined to the other side of the second torque sensor, thereby controlling the rotation of the second torque sensor. The control unit includes a driving control unit driving the servo motor in order of the forward rotation torque, a pause, a counter-rotation torque, and a pause; and a result processing unit which receives the torsional angle measured by the encoder and the input torque measured by the first torque sensor and data-processes the same.
Abstract:
PURPOSE: An inverter device having a power source circuit is provided to use an existing bootstrap power source for driving a gate, thereby reducing production costs. CONSTITUTION: An inverter device having a power supply circuit includes a converter circuit part(110), a smoothing circuit part(120), an inverter circuit part, and a current detecting circuit part(140). The converter circuit part rectifies an alternating current power source into a direct current power source. The smoothing circuit part smooths a rectified direct current. The current detecting circuit part detects an excess current from the direct current. The inverter circuit part includes a switching circuit and an auxiliary circuit. The switching circuit uses a bootstrap power source as a power source. The auxiliary circuit applies the bootstrap power source to the current detecting circuit part. [Reference numerals] (140) Current detecting circuit part; (141) Insulation; (150) Control circuit part; (AA) Power; (BB) DCP detecting resistance; (CC) Motor
Abstract:
PURPOSE: A rotor including permanent magnets having different thicknesses and a synchronous motor including thereof are provided to include a plurality of permanent magnets which has different thicknesses according to the distance from the center of a magnet pole, of which the relatively thick portion is disposed at the center of the magnetic pole and the relatively thin portion is disposed on the edge of the magnetic pole, thereby generating high magnetic flux in the central part. CONSTITUTION: A rotor(20) is rotatably installed by being inserted into a rotor insertion hole of a stator. The rotor includes a rotor iron core(21), a plurality of permanent magnets, and a plurality of conductor bars(23). The rotor iron core has a rotating shaft insertion hole(25) at the center; a plurality of permanent magnet insertion holes which is formed on the circumference of the rotating shaft insertion hole; and a plurality of conductor bar insertion holes which is formed on the circumference of the magnet insertion holes. Each of the permanent magnets is respectively inserted into the permanent magnet insertion holes for forming an N pole and an S pole. Each of the conductor bars is respectively inserted into the conductor bar insertion holes.
Abstract:
PURPOSE: A motor circuit and a method for supplying power to the circuit for detecting overcurrent of an inverter are provided to reduce the size of the whole system by reducing the size of a transformer. CONSTITUTION: A rectifier(DB1) rectifies AC input power. A switching power supply device(140) generates voltage for boosting voltage of a pulse-width modulating signal to a certain level. An overcurrent detecting circuit(100) performs the overcurrent detection of a DCP terminal of an inverter. A snubber circuit(130) charges the flyback power source of the switching power supply device. The power supply circuit(120) supplies the flyback power source as the drive power of the overcurrent detecting circuit. [Reference numerals] (100) Overcurrent detecting circuit; (120,AA) Power supply circuit; (130) Snubber circuit; (140) Switching power supply device