Abstract: A cyclone dust collecting device using a corona discharge is provided. The cyclone dust collecting device includes a cyclone chamber rotating air drawn in from the outside to separate contaminants from the air, a discharge pipe guiding the air separated from the contaminants to the outside of the cyclone chamber and including a discharge electrode part with at least a part made of a conductive material and a power supply unit supplying a power to the discharge electrode part for the discharge electrode part to perform a corona discharge.

Abstract: A cyclone dust collector comprises a cyclone body including a cyclone chamber, a connection path and a dust chamber, wherein the cyclone chamber and the dust chamber are arranged in parallel, a cover unit connected to an upper part of the cyclone body and having a suction path for external air to flow in therethrough, and a backflow prevention member disposed at one sidewall of the dust chamber to prevent collected dust from flowing to the cyclone chamber.

Abstract: A cyclone dust-separating apparatus in which the electrical field and particle charge can be uniform and stable. The cyclone dust-separating apparatus comprises: a cyclone body; an air intake pipe, through which air flows from outside into the cyclone body; an air exhaust pipe, through which air flows out of the cyclone body; a grounding member installed on the inside surface of the cyclone body; a plurality of discharge electrode members installed on the air exhaust pipe; and a high voltage power source connected to the air exhaust pipe. The air exhaust pipe conducts electricity, and the discharge electrode members are installed on one or more sides of the air exhaust pipe, are needle-shaped, and protrude from the outer surface of the air exhaust pipe so as to form a uniform and stable electrical field.

Abstract: A vacuum cleaner comprises a cleaner body where a dust separator is mounted to extract dust from dust-laden air. A dust receptacle is detachably mounted in the cleaner body. A locking unit locks the dust separator and the dust receptacle together. In an exemplary embodiment, an opening unit rotates the dust separator by a predetermined angle when the dust separator and the dust receptacle are unlocked.

Abstract: A dust collecting apparatus for a vacuum cleaner, comprising a dust canister body, a part of which becomes an exposed side exposed outside a cleaner body upon mounting in the cleaner body, and which comprises a first dust separating chamber for separating heavy dirt from air, and second and third dust separating chambers for collecting fine dust from the air passing through the first dust separating chamber; first and second cyclone bodies having first and second cyclone chambers which separates the fine dust from the air passing through the first dust separating chamber; and first and second outlet pipes, wherein the first and second cyclone bodies are eccentrically disposed in the first and second dust separating chambers so as to form a protruded portion which is exposed from the exposed side of the dust canister body, and at least the protruded portion is made of a transparent material.

Abstract: A multifunction vacuum cleaner, in which a main body is removably connected to a frame portion, comprises a nozzle assembly for suctioning in an air including dusts or dirt on a cleaning area, a main body having a cyclone dust collector for centrifugally separating the dusts or dirt from the sucked air, a dust receptacle for collecting the separated dusts or dirt, a main body frame having an upper casing and a lower casing, a button operation portion formed on an upper part of the main body frame, and a connecting projection integrally formed with the button operation portion and moving elastically, and a frame portion which is pivotably connected with the nozzle assembly, and having a connecting groove to correspond to the connecting projection. The main body of the vacuum cleaner is removably mounted in the frame portion. As a result, the main body can be conveniently connected with or separate from the frame portion.

Abstract: A cyclone dust collecting apparatus comprises a deformable contaminants counterflow prevention member mounted to within 10 to 12 mm of the inner surface of the cyclone dust collecting apparatus. The deformable contaminants counterflow prevention member is soft enough to be elastically transformed to allow large contaminants to be drawn past it and drop into a dust collecting apparatus yet resilient enough so that it returns to its original shape after a large contaminant is passed.

Abstract: A cyclone dust separating apparatus and a vacuum cleaner with the same is disclosed. The cyclone dust separating apparatus includes a first cyclone for separating large dust particles from air, a plurality of second cyclones for separating minute dust particles from air via a centrifugal force after dust separation at the first cyclone, and a cover disposed on an upper portion of the first cyclone and the second cyclones. The cover includes a conical guide formed at a lower center to guide air discharged from the first cyclone into the second cyclones. Because drawn-in air is repeatedly cleaned by a plurality of cyclones, the cyclone dust separating apparatus can be provided with a compact structure, can provide an effective cleaning operation, and can prevent deterioration of a suction force.

Abstract: A vacuum cleaner having an integral frame assembly and a detachable main body connected to the frame assembly comprises a nozzle assembly for drawing in an air from a surface to be cleaned, the air containing dust and dirt, a main body, and a frame assembly including a frame body and a connecting portion integrally formed with a lower part of the frame body. The main body includes a body frame, a dust collector connected to the body frame for separating the dust and dirt from the air drawn into the dust collector, and a drive motor for generating a suction force. According to the present invention, the main body of the vacuum cleaner is easily attached to and detached from the frame assembly.

Abstract: An accessory support for an upright type vacuum cleaner, the upright type vacuum cleaner comprising a cleaner body, a suction brush formed adjacent a lower part of the cleaner body, and a handle engaged with the cleaner body, the accessory support comprising: a hanger attached to a connecting part between the handle and the cleaner body; and a support bracket detachably attached to the hanger, and having a mounting part on which the accessory is removably mounted.

Abstract: An upright type vacuum cleaner has a locking to selectively restrain the pivoting of a handle assembly when the handle assembly is pivoted to be in a right angle with respect to a base. The locking device includes a locking portion disposed at a side of the base, a locking protrusion movably disposed at the handle assembly and selectively moving between a locking position where the locking protrusion contacts with the locking portion and an unlocking position where the locking protrusion releases out of the locking portion, and a pedal member pivotably disposed at the handle assembly to move the locking protrusion. As the pedal member is disposed at the handle assembly, the size of the base can be reduced and the manipulation of the pedal member becomes easy.

Abstract: Disclosed are a cyclone vessel dust collection and a vacuum cleaner including the same. The cyclone vessel dust collector comprises a cyclone vessel main-body including a primary cyclone vessel unit for separating dusts from dust containing air, and one or more secondary cyclone vessel units for separating dusts from the air passing through the primary cyclone vessel unit, the secondary cyclone vessel units being arranged to surround at least a part of the primary cyclone vessel unit; and a dirt collection bin for receiving dusts or the like separated by the cyclone vessel main-body, wherein the cyclone vessel main-body has an outer circumference with a non-constant radius. Therefore, the cyclone vessel dust collector can have a dust collection capability of large capacity with a small size.

Abstract: A multi cyclone dust collecting apparatus comprises a multi cyclone unit having a first cyclone and a plurality of secondary cyclones. The first cyclone separates relatively large particles whereas the secondary cyclones separate out smaller particles. The cyclones are under a top cover mounted on a top portion of the multi cyclone unit and having a plurality of connecting covers forming a connecting path for guiding air flowing out of the first cyclone to the secondary cyclone, and a discharge cover forming a discharge path for guiding air flowing out of the secondary cyclone to the outside. The connecting covers and the discharge cover are integrally formed. A contaminant collecting unit is mounted to a bottom portion of the multi cyclone unit and collects contaminants separated from the first cyclone and the secondary cyclones.

Abstract: A suction brush assembly comprises an assembly body having a suction inlet for drawing in dust on a surface being cleaned, a cover connected to the assembly body and having an opening for drawing in an external air, and a rotation body rotatably mounted to the assembly body and mounting a detachable cleaning member at a lower part thereof for contact with the surface being cleaned. The external air drawn in through the opening flows out to a lower part of the assembly body through a gap formed between the rotation body and the assembly body. Accordingly, the dust can be prevented from flowing into the rotation body, thereby improving an efficiency of a cleaning work.

Abstract: A fan assembly for a vacuum cleaner, comprising a motor, an impeller rotatably coupled to the motor, and having a plurality of impeller wings, and a diffuser having a plurality of diffuser wings arranged along an outer circumference of the impeller. The plurality of diffuser wings includes first and second parts, the second part extending from an angle of the first part adjacent to the outer circumference of the impeller.

Abstract: A cyclone dust-collecting apparatus capable of separately collecting relatively large dust particles and small dust particles, and implementing compact size and light weight thereof comprises a suction air inlet, a first dust-collecting chamber for collecting relatively large dust particles from dust-laden air drawn in through the suction air inlet, a second dust-collecting chamber for collecting relatively small dust particles from the air passed through the first dust collecting chamber, a cyclone generation portion extending across the first and the second dust-collecting chambers to provide fluid communication therebetween, a dust separation assembly formed in the cyclone generation portion configured to collide with the dust drawn in through the suction air inlet and to form a cyclone air stream in the second dust-collecting chamber, and an air discharge pipe disposed in the cyclone generation portion spaced apart from the dust separation assembly.

Abstract: A dust collecting apparatus for a vacuum cleaner, which includes, a cyclonic chamber with an air inlet and a first outlet being formed therein, the cyclonic chamber causing air from the air inlet to spin therein, a dust receptacle connected to the cyclonic chamber, a grill assembly in the cyclonic chamber and on the upstream side of the air outlet to prevent dust and contaminants separated from the air from backflowing through the first air outlet, a main filter assembly connected to the grill assembly for filtering out dust and contaminants from the air backflowing from the grill assembly, and a supplementary filter assembly on the outside of the cyclonic chamber to re-filter the fine dust and contaminants incoming from the first air outlet. While conventional cyclone type vacuum cleaners are limited by the amount of contaminants that can be separated from the air, the disclosed vacuum cleaner can more effectively separate dust and contaminants.

Abstract: A multi cyclone vessel dust collecting apparatus comprises a first cyclone vessel for centrifugally separating contaminants from drawn in air; a plurality of a second cyclone vessels configured on the first cyclone vessel; and a contaminant collecting unit attached to a bottom portion of the first cyclone vessel. Each of a plurality of the second cyclone vessels are parallel to each other. The center axis line of air rotation movement of the second cyclone vessel is substantially perpendicular to that of the first cyclone vessel. The contaminants collecting unit comprises a body which can be used as a handle.

Abstract: A hermetic type compressor to prevent refrigerant from flowing backwardly from a compression chamber into a suction muffler. The compressor includes a sealed casing, a compression chamber to compress refrigerant guided into the sealed casing, a compression chamber provided to compress the refrigerant guided into the sealed casing through the suction pipe, a suction muffler provided between the compression chamber and the suction pipe to reduce the noise emissions of the refrigerant being suctioned into the compression chamber, and a check valve installed on an outlet of the suction muffler to prevent the refrigerant in the suction muffler from flowing backwardly from the compression chamber into the suction muffler.

Abstract: An improved cyclone dust-collecting apparatus of a vacuum cleaner for efficient collection of fine dusts. The vacuum cleaner which comprises a cyclone body integrally including a first cyclone part and a second cyclone part formed around the first cyclone part, a first cover mounted on the cyclone body and including air paths through which dust-laden air flows, a second cover concentrating and transferring air exhausted from the second cyclone part to the cyclone body, and a dust receptacle mounted under the cyclone body and collecting separated dusts.