Abstract: Disclosed herein is an upright vacuum cleaner having a movement control grip that is capable of performing switch between automatic operation mode and manual operation mode on the movement control grip. The grip comprises a grip body, having a square section, connected to the upper end of a cleaner body while being bent to the cleaner body, upper and lower guide members vertically connected to each other while surrounding the grip body such that the upper and lower guide members can be slid along the outer surface of the grip body, a grip returning unit disposed at the grip body for resiliently returning the upper and lower guide members to their original positions, and a grip sensor unit mounted at the grip body for sensing the forward or rearward movement direction of upper and lower guide members relative to the grip body.

Abstract: Disclosed herein is an upright vacuum cleaner with a swing brush. The upright vacuum cleaner comprises an upright cleaner body having a suction nozzle, a drive unit mounted in the cleaner body for moving the cleaner body forward or rearward, a grip unit slidably mounted to the upper end of the cleaner body, the grip unit having a sensor for sensing a sliding direction of the grip unit, a control unit for controlling the drive unit to be operated, such that the cleaner body is moved forward or rearward, based on information sensed by the sensor, a movement converting unit for converting a rotating movement of the drive unit to an angular reciprocating movement, and a swing brush connected to the movement converting unit for performing the angular reciprocating movement. The swing brush is mounted in a suction nozzle of the cleaner body while being in contact with the floor.

Abstract: A switched reluctance motor includes: a stator including a cylindrical body, a plurality of salient poles coupled to an inner circumferential surface of the cylindrical body and provided with a winding coil, and an exterior member formed as a cylindrical shape by encompassing an assembly formed by coupling of the cylindrical body, the salient poles and the like; a rotor rotatably inserted inside the exterior member of the stator; a rotary shaft coupled to the rotor; and a phase indication magnet coupled to the rotor or the rotary shaft. Accordingly, an external structure of the motor is simplified, and the number of components and the number of assembling processes are remarkably reduced.

Abstract: Traveling equipment for a cleaner comprises: a traveling motor mounted to a cleaner head part and for generating a normal torque and a reverse torque; a traveling shaft penetrated and coupled to the traveling motor and supplied with the torque of the traveling motor; traveling wheels coupled to both sides of the traveling shaft; an operation mode selection means for selectively regulating the automatic back and forth operation function and manual function; a control means for outputting a control signal upon receiving a signal selected by the operation mode selection means; and a driving means for driving the traveling motor upon receiving the control signal of the control means. By this, the user's convenience is raised and the simplicity of the components is acquired.

Abstract: Disclosed is a wet and dry pump, comprising: a housing having an inlet and an outlet of fluid; an impeller rotatably set in the housing; and a motor including a rotating shaft connected to the impeller, a stator fixed to an inner circumferential surface of the housing and having a damp-proof-processed winding coil therein, and a rotor fixed to an outer circumference of the rotating shaft with maintaining a certain gap with an inner circumference of the stator. Therefore, it can be advantageous to improve characteristics of power consumption and noise by making wet air or liquid pass through a passage between the stator and the rotor.

Abstract: An oscillating motor is provided which can be reciprocally rotated within a predetermined rotation region without any conversion device for changing to a linear movement, and which can be simply connected to an existing apparatus. The oscillating motor includes a set of teeth formed on the stator which are configured to engage with a corresponding set of teeth formed on the rotor when the motor is in operation. Alternately formed concave and convex regions on the teeth increase a contact area between the rotor and stator, thus increasing torque and operating efficiency of the motor without increasing size.

Abstract: Switched reluctance motor and an initial activating method thereof in which an aligning pulse is applied to a stator to make a rotor wait at a normal torque generating region to be driven, preventing the rotor from rotating in a direction reverse to a target rotating direction. The standby position of the rotor in the switched reluctance motor is sensed. When the standby position of the rotor corresponds to a reverse torque generating region where a torque causing rotation in a direction reverse to a target rotating direction is generated, an aligning pulse is applied to the stator, causing the rotor to rotate to a normal torque generating region where a torque causing rotation in a normal direction corresponding to the target rotating direction is generated. A driving pulse is then to the stator, causing the rotor waiting at the normal torque generating region to rotate in the normal direction.

Abstract: The present invention discloses a suction head for a vacuum cleaner, including a casing having a suction port for sucking alien substances from the floor, an agitator rotatably installed inside the suction port, a plurality of brushes being arranged on the agitator in the length direction, an agitator driving unit for driving the agitator to perform reciprocating rotation in a predetermined angle range, and a resonance unit for resonating the reciprocating rotation of the agitator driving unit. The suction head for the vacuum cleaner improves cleaning performance of the vacuum cleaner.

Abstract: An oscillating reluctance motor includes a rotor having a center on which a rotational shaft is fixed thereto, and a pair of teeth protruding from said rotational shaft and arranged in positions opposite to each other; a stator in which a cylindrical space is formed so that the rotor can rotate and first and second winding parts are formed; rotation control means which is installed between the rotor and a stator to control rotation of the rotor, wherein a first winding coil is wound on the first winding part, a second winding coil is wound on the second winding part and the first winding part and the second winding part are formed having an angle centering around the rotational shaft as a pair so that the rotor can perform periodical rotation movement.

Abstract: Disclosed is a single-phase switched reluctance motor (SRM) driving apparatus and method which enables a high-speed and high-efficiency SRM and can minimize the switching frequency of elements for driving the SRM. The SRM driving apparatus includes a smoothing circuit section for smoothing an input power supply, a motor driving section for receiving a voltage smoothed by the smoothing circuit section and supplying the voltage to a motor in accordance with a control signal, a plurality of sensors for sensing a rotating speed and a phase of the motor, and a microcomputer for receiving one selected among signals sensed by the plurality of sensors and outputting the control signal for controlling the motor driving section.

Abstract: Switched reluctance motor and an initial activating method thereof in which an aligning pulse is applied to a stator to make a rotor wait at a normal torque generating region to be driven, preventing the rotor from rotating in a direction reverse to a target rotating direction. The standby position of the rotor in the switched reluctance motor is sensed. When the standby position of the rotor corresponds to a reverse torque generating region where a torque causing rotation in a direction reverse to a target rotating direction is generated, an aligning pulse is applied to the stator, causing the rotor to rotate to a normal torque generating region where a torque causing rotation in a normal direction corresponding to the target rotating direction is generated. A driving pulse is then to the stator, causing the rotor waiting at the normal torque generating region to rotate in the normal direction.

Abstract: A method for controlling driving of a Switched Reluctance Motor (SRM) is capable of operating the SRM normally according to a phase under the normal state in case a noise is inputted to a position sensor in the SRM. In order to achieve the advantage, the method for controlling driving of a three phase SRM using a position sensor having a rate of a rotor and a stator is 6/4 or 12/8 includes the steps of generating a sensor signal according to the position of a rotor in the SRM and operating the SRM by turning on respective phases in the SRM at the point of detecting a rising edge of the sensor signal and turning off the phase at the point of detecting a falling edge of the next sensor signal.

Abstract: Disclosed is a method of controlling alignment of a rotor of an SRM with respect to a stator, the SRM including a stator having a plurality of diametrically opposed stator salient magnetic pole pairs around each which each of a plurality of phase coils is wound, and a rotor disposed about a shaft within the stator and having a plurality of diametrically opposed rotor salient pole pairs, comprising the steps of: (a) applying a voltage pulse having an identical magnitude to each phase coil surrounding the plurality of pairs of stator salient magnetic poles in a plurality of respective motor phases of a stator of the SRM upon the initial starting of the SRM; (b) detecting current flowing into the each phase coil in the plurality of respective motor phases in accordance to the application of the voltage pulse; (c) comparing the respective magnitude values of the detected current in the respective motor phases with each other; and (d) bringing rotor salient pole pair of the rotor into alignment with a correspondin

Abstract: A method for controlling driving of a Switched Reluctance Motor (SRM) is capable of operating the SRM normally according to a phase under the normal state in case a noise is inputted to a position sensor in the SRM. In order to achieve the advantage, the method for controlling driving of a three phase SRM using a position sensor having a rate of a rotor and a stator is {fraction (6/4)} or {fraction (12/8)} includes the steps of generating a sensor signal according to the position of a rotor in the SRM and operating the SRM by turning on respective phases in the SRM at the point of detecting a rising edge of the sensor signal and turning off the phase at the point of detecting a falling edge of the next sensor signal.

Abstract: An oscillating motor includes: a first teeth having a concave portion and a convex portion at its front surface; a stator having the first teeth by pairs formed at an inner circumferential surface; and a rotor having a concave portion and a convex portion at the front surface of a second teeth in a manner of being engaged with the concave portion and the convex portion formed at the first teeth of the stator. The motor can be reciprocally rotated in the rotation region without any conversion device for changing to a linear movement. In addition, it can be simply connected for use to the existing apparatus.

Abstract: The present invention provides an oscillating reluctance motor which includes a rotor a center of which a rotational shaft is fixed to, and from which a pair of teeth are protruded-formed outside, said rotor teeth facing each other centering on the rotational shaft, a stator in which a cylindrical space is formed so that the rotor can rotate and first and second winding parts are formed, and a rotation control means which is installed between the rotor and a stator thus to control rotation of the rotor, wherein a first winding coil is wound on the first winding part, a second winding coil is wound on the second winding part and the first winding part and the second winding part are formed having an angle centering around the rotational shaft as a pair so that the rotor can perform periodical rotation movement.

Abstract: Disclosed is a method of controlling alignment of a rotor of an SRM with respect to a stator, the SRM including a stator having a plurality of diametrically opposed stator salient magnetic pole pairs around each which each of a plurality of phase coils is wound, and a rotor disposed about a shaft within the stator and having a plurality of diametrically opposed rotor salient pole pairs, comprising the steps of: (a) applying a voltage pulse having an identical magnitude to each phase coil surrounding the plurality of pairs of stator salient magnetic poles in a plurality of respective motor phases of a stator of the SRM upon the initial starting of the SRM; (b) detecting current flowing into the each phase coil in the plurality of respective motor phases in accordance to the application of the voltage pulse; (c) comparing the respective magnitude values of the detected current in the respective motor phases with each other; and (d) bringing rotor salient pole pair of the rotor into alignment with a correspondin

Abstract: Disclosed is a single-phase switched reluctance motor (SRM) driving apparatus and method which enables a high-speed and high-efficiency SRM and can minimize the switching frequency of elements for driving the SRM. The SRM driving apparatus includes a smoothing circuit section for smoothing an input power supply, a motor driving section for receiving a voltage smoothed by the smoothing circuit section and supplying the voltage to a motor in accordance with a control signal, a plurality of sensors for sensing a rotating speed and a phase of the motor, and a microcomputer for receiving one selected among signals sensed by the plurality of sensors and outputting the control signal for controlling the motor driving section.

Abstract: A speed control method for an SR motor using a load with a large mechanical inertia that performs a PWM in an acceleration state wherein a speed of the motor radically changes and switches an inverter transistor for a previously determined time in a steady state wherein the speed thereof becomes an uniform level, thereby regularly fixing a time for which a current flows to motor coils connected with the switching transistor.

Abstract: An inverter circuit for a switched reluctance motor (SRM) includes a lower switching transistor connected to a corresponding lower negative pole of a filter condenser and switched in accordance with a control signal outputted from a control circuit, an upper switching transistor connected to a corresponding upper positive pole of the filter condenser and switched in accordance with a switching operation of the lower switching transistor, resistances for dividing the voltage of a DC link when the lower switching transistor is turned on, a condenser for controlling a gate voltage of the upper switching transistor in accordance with the voltage divided by the resistances, and a coil for operating a motor in accordance with a switching operation of the upper and lower switching transistors. The circuit operates in accordance with a switching operation of the lower switching transistor by replacing with a simplified passive component a voltage isolating device and a gate driver of a conventional circuit.