Abstract: A cyclone dust separating apparatus has a first cyclone chamber for separating particles from the externally-drawn fluid by centrifugal force, one or more second cyclone chambers for separating particles from the fluid discharged from the first cyclone chamber by centrifugal force, and one or more third cyclone chambers for separating particles from the fluid discharged from the second cyclone chambers, and causing the fluid to be discharged out via a discharge passage. The second and the third cyclone chambers are arranged in radial relation with respect to the first cyclone chamber, and thus, surround the first cyclone chamber. Therefore, the cyclone dust separating apparatus provides multi-stage centrifugal cleaning process and improved cleaning efficiency, while remaining compact-sized.

Abstract: A multi cyclone dust-separating apparatus is disclosed that includes a cyclone unit having a first cyclone, a plurality of second cyclones, and a dust collecting unit. The first cyclone is disposed so that a longitudinal axis thereof is substantially vertically arranged. The first cyclone separates relatively large dust or dirt from air drawn in through a first air inflow part. Each of the second cyclones is disposed so that longitudinal axes thereof are substantially vertically arranged. Each of the second cyclones has a second air inflow part to communicate with the first cyclone and an air discharging part to discharge the air. The second cyclones separate relatively minute dust or dirt from the air drawn in through the second air inflow part. The dust collecting unit is disposed below the cyclone unit to collect and store the dust or dirt separated from the air by the cyclone unit.

Abstract: A dust compressing apparatus of a vacuum cleaner that automatically compresses dust or dirt collected and stored in a dust separating apparatus. The dust compressing apparatus includes a compressing plate to compress dust or dirt collected in the dust separating apparatus, a lifting and lowering unit connected to the compressing plate above the compressing plate to lift and lower the compressing plate, and a driving motor to drive the lifting and lowering unit thus to lift and lower the compressing plate.

Abstract: A vacuum cleaner includes a vacuum cleaner body, a cyclone unit which is mounted at the vacuum cleaner body, and separates dust from drawn air, a dust separating unit which is engaged with a lower end of the cyclone unit, said dust separating unit being configured to collect separated dust, said dust separating unit being detachable from the cyclone, and said dust separating unit comprising a compressing plate compressing the collected dust; and a driving unit which is disposed at a lower end of the dust separating unit, said driving unit being configured to ascend and descend the dust separating unit to be detachably connected to the cyclone unit and drives the compressing plate. As a result, the vacuum cleaner is capable of not only compressing dust in a dust separating unit by rotating a lever, but also detachably mounting the dust separating unit to a cyclone unit. Therefore, the vacuum cleaner having simplified structure and a convenient operation is provided.

Abstract: A dust compressing apparatus of a vacuum cleaner capable of automatically compressing dust or dirt collected in a dust separating unit is disclosed. The dust compressing apparatus includes a compressing plate to compress dust or dirt collected in a dust separating unit, a moving unit disposed on one side of the dust separating unit located in an opposite direction to a direction where the compressing plate compresses the dust or dirt, to move the compressing plate to a compressing position of compressing the dust or dirt and a releasing position of moving away from the dust or dirt, and a driving motor to drive the moving unit thus to move the compressing plate to the compressing position.

Abstract: A cyclone dust-separating apparatus of a vacuum cleaner is disclosed. The cyclone dust-separating apparatus includes at least one cyclone having a cyclone body, which rotates air to separate dust or dirt therefrom, which has an air inflow part and an air discharging part, and which is installed in such a manner that a longitudinal axis thereof is substantially horizontally arranged, and a dust collecting unit to store the dust or dirt separated by the cyclone unit. The cyclone body is formed in a convex cylinder shape, so that a diameter thereof in the vicinity of an entrance of the air discharging part through which the air is discharged comes maximum.

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 connecting tube having a dust sensing function is provided. The connecting tube includes a tube element having a first air flowing passage; a body having a second air flowing passage to communicate with the first air flowing passage; a detecting sensor disposed on the second air flowing passage to detect whether the dust or dirt passes through the second air flowing passage; a lamp part to operate according to a signal outputted from the detecting sensor; a rotating part rotatably disposed on the body; a rotation driving-passage part disposed on the body to draw in an external air into the second air flowing passage and thus to rotate the rotating part; an electric generator connected to the rotating part to generate an electric power; and a muffler part to reduce noises from the rotating part and the flowing air.

Abstract: A multi-cyclone dust separating apparatus includes a cyclone unit and a separable filter assembly adapted to be disposed at least partially in a discharge path of the cyclone unit. The cyclone unit includes a main cyclone, a secondary cyclone adapted to be disposed at substantially a same plane as the main cyclone, and a dust collecting casing adapted to substantially surround the main cyclone and the secondary cyclone. The dust collecting casing includes a dust chamber to collect dust separated at the main cyclone and the secondary cyclone.

Abstract: A cyclone separating apparatus for a vacuum cleaner includes a first cyclone having an inclined part and adapted for separating dust and air; a first dust chamber adapted to be disposed substantially around the first cyclone and to be in fluid communication with the first cyclone; at least one second cyclone for separating dust and air adapted to be disposed above the first cyclone and to be in fluid communication with the first cyclone; and a second dust chamber adapted to be in disposed within the first cyclone and to be in fluid communication with the second cyclone.

Abstract: The multi-cyclone dust separating apparatus includes a first cyclone unit having a body and including an air inlet disposed at a side of the body, a first cyclone chamber adapted to form a first space for whirling air from the air inlet to separate dust form the air; a second cyclone unit adapted to be detachably disposed at the body of the first cyclone unit and including, a second air inlet to draw the air from the first cyclone chamber, at least one cyclone for whirling the air from the first cyclone chamber to provide a second separation of dust from the air; and a dust bin adapted to be detachably mounted to at least one of the second cyclone unit and the first cyclone unit.

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 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 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 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: Disclosed is a dust collector of a vacuum cleaner. The dust collector comprises: a cyclone body forming a cyclone chamber and having a bottom wall and an air inlet, air being admitted into the cyclone chamber and rotating in the cyclone chamber; an outlet pipe extending upwardly from the bottom wall of the cyclone body; and a dust-bin body surrounding the cyclone body in such a manner that a dust collection space is formed between the dust-bin body and the cyclone body. The inner diameter of the cyclone body is increased as approaching a height near the top end of the outlet pipe from the bottom wall of the cyclone body.

Abstract: Provided are a high-power ball grid array (BGA) and a method for manufacturing the high-power BGA. The high-power BGA includes a printed circuit board which has a through hole at its center, connection pads which are formed on the bottom of the printed circuit board, matrix solder balls which surround the through hole and are adjacent to the connection pads on the bottom of the printed circuit board, a heat spreader which is formed on the top surface of the printed circuit board and includes an insulating layer of a high thermal conductivity, a semiconductor chip which is mounted downwardly on the bottom surface of the heat spreader, within the through hole, and includes a plurality of pads for bonding via gold wires with the connection pad, and a passive film which fills the through hole and is formed at the bottom of the semiconductor chip.

Abstract: A high-power BGA includes a printed circuit board with a through hole, connection pads formed on the bottom of the printed circuit board, matrix solder balls surrounding the through hole and adjacent to the connection pads, a heat spreader on the top surface of the printed circuit board that includes an insulating layer of a high thermal conductivity, a semiconductor chip mounted within the through hole on the bottom surface of the heat spreader that includes a number of contact pads for bonding with the connection pads using gold wires, and a passive film filling the through hole and around the semiconductor chip. By interposing a ceramic insulating layer between the semiconductor chip and the heat spreader, charge generation between the semiconductor chip and the heat spreader is sharply reduced, and defects such as ESD (electrostatic discharge) is reduced during testing and mounting of the package.

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: Disclosed is a cyclone dust collecting apparatus for a vacuum cleaner, which includes: a cyclone main body rotating a drawn air flown into a first inlet and discharging; and a guide unit disposed between the first inlet and the cyclone chamber, and guiding the drawn air into the cyclone chamber, while dispersed into two or more parts, and the guide unit further comprises a plurality of guide paths spirally formed to guide the drawn air flown into the cyclone chamber rotates along the spiral guide paths. Accordingly, rotary force of the air flown into the cyclone chamber increases and pressure loss of the vacuum cleaner by the cyclone dust collecting apparatus is minimized.