Abstract: A moving object capable of recognizing an image and a system for directing the moving object are disclosed. The system for directing the moving object includes: a charging device on which a docking direction pattern is printed, such that a central point of the docking direction pattern for directing the moving object to a docking location and a power-supply terminal are arranged in a straight line; and a moving object for driving wheel operations to allow the central point of the docking direction pattern captured by a camera to be identical with a central point of an image captured by the camera, and moving to the docking location. The moving-object directing system drives a wheel to track a central point of the docking direction pattern captured by a camera, such that it can quickly and correctly move to the docking location of the charging device.

Abstract: A combined microwave oven and hood is provided. The combined microwave oven and hood includes a cavity assembly including a cavity and an electronic equipment room disposed at one side of the cavity, a blower for generating an absorptive power of contaminated air, a filter for filtering the contaminated air absorbed through the blower, and a drawer type air curtain module, which is transferred to a front side of the cavity assembly as operated.

Abstract: An air purifying robot and its operation method capable of purifying air using a mobile robot are disclosed. To this end, an air purifying robot comprises: a main body casing having a certain space therein, and provided with a suction hole for sucking ambient air and a discharge hole for discharging the purified air; a fan motor installed in the main body casing, and rotating so as to suck the ambient air of the main body casing through the suction hole; a dust collecting filter for filtering pollutants contained in the ambient air having been sucked through the suction hole; main wheels installed at a lower surface of the main body casing at a certain interval therebetween, and driven by the motor; an auxiliary wheel installed so as to maintain a horizontal state of the main casing, and moving the air purifying robot together with the main wheels; and a control unit for controlling the fan motor, the dust collecting filter and the main wheels.

Abstract: A remote observation system and a method thereof includes: a robot cleaner for capturing images from the surroundings of a preset patrol path while traveling the preset patrol path and outputting image signals of the images captured from the surroundings when a mode of the robot cleaner is switched to the patrol mode by user's input signal; and a network connection device for transmitting the image signals outputted from the robot cleaner to user equipment through a communications network.

Abstract: Disclosed is a combination hood microwave oven, by which a room environment is maintained more pleasant and fresh by proving a microwave oven with an air curtain generating unit for preventing polluted air, which includes hot, smelling, or humid air produced from an oven range on cooking, from diffusing into a room. The present invention includes a cabinet disposed over an oven range, a cooking room having a predetermined cavity within the cabinet for cooking using an electromagnetic wave generated from a magnetron, a hood unit installed within the cabinet to discharge polluted air produced from the oven range on cooking, and an air curtain generating unit installed at a bottom side of the cabinet to prevent the polluted air from diffusing into a room.

Abstract: Disclosed is a cooling fan including a fan rotated by a motor, for forcibly circulating the air, and a fan housing having a through hole with a predetermined inside diameter so that the fan can be mounted thereon. A curvature radius of the end of the inner circumference of the through hole sucking the air is smaller than a curvature radius of the end of the inner circumference of the through hole discharging the air. As a result, the cooling fan can minimize noises in the operation.

Abstract: Disclosed is an oil supply apparatus for a hermetic compressor including an oil feeder mounted at a bottom end of a crank shaft rotated by a driving unit, for sucking oil, an oil passage formed inside the crank shaft, for guiding the oil sucked by the oil feeder, and an oil injection hole formed on a sleeve inserted onto an eccentric unit formed at the top end of the crank shaft, for injecting the oil sucked into the oil passage into a cylinder for compressing fluid. The oil supply apparatus for the hermetic compressor improves efficiency of the compressor by efficiently cooling the cylinder by sufficiently supplying the oil stored at the lower portion of the casing to the cylinder.

Abstract: A complex type cleaner comprises: a body; a suction head arranged at a lower side of the body, for sucking dust at the time of performing a vacuum cleaning and sucking dirty water at the time of performing a water cleaning; a suction fan for generating a suction force so that dust and dirty water can be sucked into the suction head; a reservoir detachably mounted at the body and storing dust or dirty water; and a valve assembly for converting a cleaning mode into a vacuum cleaning mode or a water cleaning mode by selectively opening and closing passages connected among the suction head, the reservoir, and the suction fan. A vacuum cleaning function for sucking dust and a water cleaning function are implemented at one cleaner, thereby reducing the cost and facilitating the usage and the storage.

Abstract: A heat sink and a method for processing the surfaces of the heat sink are disclosed. The heat sink and a method for processing the surfaces of the heat sink can improve performance of heat dissipation of the heat sink per volume as a plurality of fine wires based on nanometer or micrometer units are grown on the surfaces of the base and heat-dissipative fins of the heat sink through an oxidation process. Here, the total volume of the heat sink is scarcely increased, but rather their surface area and surface roughness are increased.

Abstract: A centrifugal fan includes: a housing installed at both sides of a driving motor and having an air suction opening and an air discharge opening; an impeller installed inside the housing and discharging air sucked through the air suction opening through the air discharge opening while being rotated by the driving motor; a motor bracket coupled to one side of the housing and connecting the housing the driving motor; and a noise reducing unit for minimizing a noise of air discharged to the air discharge opening.

Abstract: A filtering device for a vacuum cleaner comprises: a casing having a collecting space therein, a suction opening through which air including dust is sucked and a discharge opening through which purified air is discharged; a filter installed at the internal space of the casing, for filtering dust from air sucked through the suction opening; and a filter cleaning unit disposed to encompass an outer circumferential surface of the filter, for cleaning the filter by being rotated by a rotation force of air sucked through the suction opening. Accordingly, the filtering device can remove fine dust attached to the filter in a cleaning operation, thereby preventing a channel of the filter from being closed with the dust.

Abstract: A filter device for a vacuum cleaner comprises: a casing having a collecting space therein, a suction opening through which air including dust is sucked, formed eccentrically at one side so that sucked air can be rotated and a discharge opening through which purified air is discharged; a filter installed at an internal space of the casing, for filtering dust from air sucked through the suction opening; a filter cleaning unit disposed at an outer circumferential surface of the filter, for cleaning the filter by being rotated by a rotation force of air sucked through the suction opening; and a rotation restraining means for restraining rotation of the filter cleaning unit when the filter cleaning unit reaches a top dead point. Accordingly, fine dust attached to the filter in cleaning is removed so that a channel of the filter can be prevented from being closed.

Abstract: A cleaner comprises a cleaning fluid container installed at a cleaner body, for providing a space in which a cleaning fluid is stored; a cleaning fluid dispensing unit for dispensing a cleaning fluid in the cleaning fluid container to a cleaning region; a brush rotatably installed at a bottom of the cleaner body, for brushing a cleaning region by being rotated; a recovery unit for recovering a soiled fluid including a filth from the cleaning region; a recovery fluid container installed at the cleaner body, for storing the recovered soiled fluid; and a drying unit for heating air and dispensing the heated air to the cleaning region. Accordingly, the moisture remaining at a cleaning region is quickly removed, and so cleaning efficiency can be improved.

Abstract: Disclosed is a reciprocating compressor comprising: a motor part mounted inside a hermetic container for generating a rotational driving force; and a compression part for sucking a refrigerant into a cylinder and discharging the refrigerant through a suction channel and a discharge channel of a head accordingly as a piston is linearly reciprocated in the cylinder by the rotational driving force of the motor part, in the reciprocating compressor, a suction valve seat is included, the suction valve seat composed of: an open/close portion fixed between the cylinder and the head of the compression part and opposite to the suction channel for opening and closing the suction channel; and an elastic portion formed as a curved line at the periphery of the open/close portion for elastically supporting the open/close portion.

Abstract: Disclosed is a mounting structure of a blower for a vacuum cleaner comprising a mounting cover for fixing the blower to a body base so that the blower is structurally separated from a body cover. The mounting cover is put on the upper surface of the blower disposed on supporting ribs, and connected to the body base, and then the body cover is put on the body base. The blower is fixedly interposed between the supporting ribs and the mounting cover and separated from the body cover, thereby preventing oscillation generated by the blower from being transmitting to the body cover and then preventing the oscillation of the body cover and the consequently occurring noise of the body cover.

Abstract: In a vacuum cleaner, by including a casing having a certain internal space; a suction force generating unit installed in the casing to generate a suction force and discharge sucked air; a head unit combined with the casing to suck impurities on the bottom with air by a suction force of the suction force generating unit or discharge air sucked from the outside; a filter unit for filtering off impurities in air sucked through the head unit or ambient air received from the outside; a flow channel switch means connected with the head unit, the filter unit and the suction force generating unit so as to selectively switch a flow channel in order to guide air including impurities sucked through the head unit by the suction force of the suction force generating unit or make ambient air introduced in the flow channel switch means flow to the head unit; and plural pipes for providing passages of air flowing in the head unit, the filter unit, the suction force generating unit and the flow channel switch means, it is pos

Abstract: A cleaner includes a suction motor mounted in a cleaner main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction tube, and sucking dust and filth on a floor; a brush installed in the suction head so as to ascend/descend in a vertical direction, and sweeping dust and foreign substances into the suction head; and a brush height control apparatus installed in the suction head, and making the brush ascend/descend in a vertical direction. The cleaner having a brush height control apparatus can prevent deterioration of a suction force and improving cleaning performance by constantly maintaining a gap between the suction head and the floor.

Abstract: A cleaner having a brush includes a suction motor mounted in a main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction pipe, and having an inlet through which dust and filth on a floor are sucked; and a brush rotatably mounted at an inside of the suction head. The inlet is partitioned off into a first section and a second section by a belt cover for protecting a belt winding around the brush, and a flow passage unit is formed at the brush so that air can flow between the first and second sections. Accordingly, air can flow smoothly at a portion, which is blocked by the belt cover, and thus cleaning performance can be improved.

Abstract: A suction apparatus of a cleaner includes: a suction motor inserted in a cleaner body and generating a suction force; a filter for collecting dust or filth sucked by a suction force generated fro the suction motor; a suction head connected to the filter by a suction pipe and sucking dust and filth on the floor by the suction force generated from the suction motor; and an auxiliary suction unit installed at the opposite side of a side where the suction pipe of the suction head is connected.

Abstract: The present invention relates to a structure of a rotor for a brushless motor which can improve structural stiffness, restrict noise generation by reducing vibration during the rotation, use cheap materials, reduce a fabrication cost by fabricating a back yoke and a base plate unit in a single body. improve durability, and efficiently cool a heat generated in the motor during the operation by facilitating an external air inflow.