Abstract: Disclosed are a dust receptacle fixing/separating apparatus that fixes and separates a dust receptacle with respect to a cyclone unit, and a cyclone dust collecting device having the same. The dust receptacle fixing/separating apparatus comprises a fixing/separating handle, a locking/unlocking part, and a fixing part. The fixing/separating handle pivots between a first position and a second position, the first position in which the cyclone unit and the dust receptacle are fixed to each other and the second position in which the cyclone unit and the dust receptacle can be separated from each other. The locking/unlocking part fixes and releases the fixing/separating handle when the fixing/separating handle is in the first position. The fixing part pivotably mounting the fixing/separating handle releases connection between the cyclone unit and the dust receptacle when the fixing/separating handle is in the second position.

Abstract: A multi-cyclone dust separating apparatus has a main cyclone part comprising one or more cyclones, a sub cyclone part comprising one or more cyclone cones, and arranged in substantially parallel relation with respect to the main cyclone part, and a dust collecting casing provided to surround the main cyclone part and the sub cyclone part, and comprising a dust collecting chamber where dust separated in the main cyclone part and the sub cyclone part is collected. The dust collecting casing has a non-constant radius on the same height from the bottom.

Abstract: A brush assembly for a vacuum cleaner includes a brush body having a suction inlet; a main brush which is rotatably coupled to the brush body through the suction inlet to face a surface being cleaned; and a secondary brush which is rotatably mounted on the brush body to rotate between at least two positions including a first position, in which the secondary brush contacts the surface being cleaned, and a second position, in which the secondary brush does not contact the surface being cleaned.

Abstract: Disclosed is a multi-cyclone dust separating apparatus, comprising a cyclone body, a top cover and a discharge cover. The cyclone body includes a main cyclone and a plurality of cyclone cones communicating with the main cyclone and arranged around a lower part of the main cyclone, each of which has a reverse conical shape whose diameter is reduced as approaching the top end thereof. The top cover is fitted on the top of the cyclone body and has an air inflow port introducing ambient air into the main cyclone. The discharge cover is fitted on the bottom of the main cyclone and collects and discharges the air discharged from the plurality of cyclone cones. Most of the air introduced into the top of the main cyclone through the air inflow port is discharged to the bottom of the main cyclone without being reversed to flow upwardly and then introduced into the plurality of cyclone cones.

Abstract: A nozzle assembly having a UV generation unit and a vacuum cleaner having the same are provided. The nozzle assembly includes a nozzle main body that moves over a cleaning surface, a drum brush unit that is formed on the nozzle main body and includes an extension unit, an ultraviolet (UV) generation unit that is formed on the drum brush unit to be folded or unfolded so that the UV generation unit selectively faces the cleaning surface, and a switch that turns the UV generation unit on or off according to whether the UV generation unit is folded or unfolded.

Abstract: A vacuum apparatus having a suction nozzle, an air suction unit to which the suction nozzle is pivotally connected and which fluidly communicates with the suction nozzle through a connection channel, a dirt receptacle which has at least two collecting parts fluidly communicating with at least two outlets formed at the air suction unit, respectively.

Abstract: A suction nozzle of a vacuum cleaner includes a suction nozzle body which includes a suction port adapted to draw in contaminants on a surface, and a contaminant attachment unit formed in the suction nozzle body. The contaminant attachment unit is adapted to attach contaminants thereto.

Abstract: Disclosed is a multi-cyclone dust separating apparatus including a primary cyclone for centrifugally separating impurities from the sucked air, a plurality of secondary cyclones for centrifugally separating impurities from the air supplied from the primary cyclone, inflow guide paths for guiding the air discharged from the primary cyclone to the plurality of secondary cyclones, and discharge guide tubes partially inserted into the secondary cyclones, for externally discharging the air of the secondary cyclones. The discharge guide tubes include cylindrical portions having a predetermined height, and intercepting portions extended from the bottom ends of the cylindrical portions by a predetermined length, for preventing the air supplied to the secondary cyclones from being directly discharged to the discharge guide tubes.

Abstract: A cyclone dirt separating apparatus and a vacuum cleaner having the same are disclosed. The cyclone dirt separating apparatus comprises a cyclone body including a first cyclone chamber in which dirt is separated preliminarily from air drawn in from an exterior by a centrifugal force; and a second cyclone chamber in which dirt is separated secondarily from the air discharged from the first cyclone chamber; and a dirt collecting case coupled to a lower end of the cyclone body for collecting the dirt. Also, the cyclone dirt separating apparatus further comprises a discharge guide duct passed through the cyclone body and the dirt collecting case and guiding the air discharged from the second cyclone chamber. Therefore, the air discharged through the discharge guide duct is directly entered to a motor mounting space of the vacuum cleaner.

Abstract: A driving control apparatus of a rotary brush, which controls a drive of the rotary brush disposed in a suction body of a vacuum cleaner, is disclosed. The driving control apparatus includes a fixing bracket disposed in a suction body of a vacuum cleaner, a link unit pivotably connected to the fixing bracket, a pedal unit connected to one side of the link unit, and a pulley unit to move in combination with the link unit and to connect or separate a driving belt to or from a driving shaft, and the pulley unit is rotated in the same direction as a rotating direction of the driving belt when coming in contact with the driving belt.

Abstract: A dust sensing unit for use in a vacuum cleaner, which can detect whether there is dust or dirt on a surface to be cleaned and inform a user of the detected result in cleaning, is disclosed. The dust sensing unit includes a body having an air flowing passage therein to move air laden with dust or dirt drawn in through a suction nozzle, a detecting sensor disposed on the air flowing passage to detect whether the dust or dirt is passing through the air flowing passage, a lamp part to operate according to a signal outputted from the detecting sensor, a rotating part disposed to the body to rotate by air flowing through the air flowing passage, and an electric generator rotated by the rotating part to generate an electric power.

Abstract: A dust separating apparatus for a vacuum cleaner having a casing, a cyclone unit formed in the casing to filter contaminants from drawn-in air and discharge air removed of the contaminants, and a dust collection part arranged in parallel with the cyclone unit in the casing to collect the contaminant separated from the air by the cyclone unit. The casing is substantially semicircular to correspond to the mounting chamber of the vacuum cleaner body. On a bottom surface of the cyclone unit, an air inlet and an air outlet are formed. The air outlet is formed at one side of the air inlet.

Abstract: A vacuum cleaner includes a suction port assembly, a motor generating a suction force at the suction port assembly, and a cyclone dust collecting device for centrifugally separating air drawn in through the suction port assembly and the motor in sequence. The cyclone dust-collecting device includes an air discharge port penetratingly formed on an outer circumference of the cyclone dust-collecting device and exposed to an outside of the cleaner body, for guiding the air discharged to the outside. Accordingly, since the air discharge port is disposed in the cyclone dust collecting device, not in the cleaner body, a discharge channel for connecting the cyclone dust collecting device and cleaner body is omitted and thus a structure of the vacuum cleaner becomes simplified.

Abstract: A cyclonic separating apparatus for a vacuum cleaner that can separately collect dust and water. The cyclonic separating apparatus includes: a cyclone body having an air inlet passage and an air discharge passage; a dust receptacle connected to a lower end of the cyclone body; and a screen dividing the cyclone body and interior space of the dust receptacle into a first chamber and a second chamber, the screen having a plurality of passing holes, wherein drawn air rotates in the first chamber and water separated from the air moves to the second chamber through the passing holes.

Abstract: Disclosed is a passage-conversion valve assembly for a vacuum cleaner, having a valve member having a socket for a hose nozzle and mounted in an air passage in a cleaner body, a resilient member mounted in the air passage to resiliently bias the valve member in one direction, and an actuator mounted to one sidewall of the air passage to push the valve member in an opposite direction to the resilience by the resilient member when the hose nozzle is mounted to the socket.

Abstract: A flexible hose includes a hose body and a plurality of pleats formed on an outer circumferential surface of the hose body by predetermined intervals to give flexibility to the flexible hose. Each of the plurality of pleats includes an entering portion formed to be inclined to the outer circumferential surface of the hose body, and a head portion formed vertical to the outer circumferential surface of the hose body to extend from the entering portion, to be in fluid communication with an inside of the hose body via the entering portion.

Abstract: A vacuum cleaner is provided that includes a cleaner body; a cyclone body rotatably mounted in the cleaner body; a dust receptacle detachably mounted in the cleaner body and disposed below the cyclone body; and a locking unit locking and releasing the cyclone body and the dust receptacle with respect to each other.

Abstract: A multi-cyclone dust separating apparatus includes: a multi-cyclone unit including a first cyclone chamber body having a first cyclone chamber and at least one protection chamber formed around at least a portion of an outer circumference of the first cyclone chamber, and at least one secondary cyclone chamber body disposed in the protection chamber, each secondary cyclone chamber body having at least one secondary cyclone chamber; a cover unit connecting an upper end of the multi-cyclone unit and guiding air discharged from the first cyclone chamber to the at least one secondary cyclone chamber; a dirt collecting unit adapted to connect to a lower end of the multi-cyclone unit and configured to collect dirt separated from the air in the first and secondary cyclone chambers; and an air discharge duct configured to discharge air that has passed through the multi-cyclone unit.

Abstract: A dust separating apparatus for a vacuum cleaner which is compact in configuration and is capable of preventing dirt from piling up on an entrance channel is provided. The dust separating apparatus includes a dust collecting receptacle adapted to collect dirt, and a cyclone unit eccentrically disposed in the dust collecting receptacle and adapted to whirl air drawn in through an inflow channel thereof, and the inflow channel may have an inclined upper surface which slopes downward toward a bottom of the dust collecting receptacle by a predetermined angle.

Abstract: A nozzle assembly of a vacuum cleaner is disclosed. The nozzle assembly includes a nozzle assembly body having an air inlet and an air outlet, a drum brush unit disposed in the nozzle assembly body in the vicinity of the air inlet, and having a drum brush disposed to brush away dirt or dust adhered to a surface to be cleaned while coming in rotation contact therewith, and a movable brush unit disposed in at least one of the front and the rear of the air inlet on an undersurface of the nozzle assembly body to pivot in an opposite direction to a moving direction of the nozzle assembly body thus to change a contacting angle to the surface to be cleaned in the range of a predetermined angle and then to brush away dirt or dust adhered to the surface to be cleaned, in moving of the nozzle assembly body.