WO2011096476A1 - サイクロン分離装置並びに電気掃除機 - Google Patents
サイクロン分離装置並びに電気掃除機 Download PDFInfo
- Publication number
- WO2011096476A1 WO2011096476A1 PCT/JP2011/052243 JP2011052243W WO2011096476A1 WO 2011096476 A1 WO2011096476 A1 WO 2011096476A1 JP 2011052243 W JP2011052243 W JP 2011052243W WO 2011096476 A1 WO2011096476 A1 WO 2011096476A1
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- WIPO (PCT)
- Prior art keywords
- primary
- dust
- cyclone
- swirl chamber
- air
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1616—Multiple arrangement thereof
- A47L9/1625—Multiple arrangement thereof for series flow
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1616—Multiple arrangement thereof
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
Definitions
- the present invention relates to a cyclone separating device that centrifugally collects air and dust by swirling dust-containing air (air containing dust) sucked from outside the machine, and a vacuum cleaner equipped with the cyclone separating device It is about.
- cyclone separators especially cyclone separators used in vacuum cleaners, etc.
- Conventional cyclone separators have a structure that collects dust in the air by passing the dust-containing air sucked by the electric blower through the dust collection filter and dust collection bag It was.
- a vacuum cleaner using such a cyclone separator it is necessary to periodically purchase a dust bag and install it in the main body of the vacuum cleaner, which is cumbersome and burdensome for the user. It was.
- a cyclone separator that can collect dust by separating air and dust using centrifugal force and inertial force without using a consumable dust bag is installed.
- a vacuum cleaner has been proposed.
- As a vacuum cleaner equipped with such a cyclone separator for example, by providing a concentric outer cyclone and an inner cyclone contained in the outer cyclone in series, the dust generated by the cyclone separator can be reduced.
- There has been proposed an electric vacuum cleaner with a high separation performance see, for example, Patent Documents 1 to 3).
- the dust separation performance of the cyclone separator can be improved by connecting a plurality of swirl chambers in series.
- these cyclone separators are provided with concentric circular inner and outer cyclones which are swirl chambers, that is, the swirl chamber (inner cyclone) is covered with another swirl chamber (outer cyclone).
- the swirl chamber inner cyclone
- another swirl chamber outer cyclone
- the present invention has been made to solve the above-described problems, and provides a low-noise cyclone separator and a vacuum cleaner including the cyclone separator while efficiently separating dust from dust-containing air. It is intended to provide.
- a cyclone separation device includes a primary inlet into which dust-containing air sucked from the outside flows, and a primary swirl chamber that separates dust from the dust-containing air by swirling the dust-containing air sucked from the primary inlet.
- a primary cyclone unit that is provided below the primary swirl chamber and has a primary dust case that collects dust separated by the primary swirl chamber, and a primary discharge port that discharges air in the primary swirl chamber;
- a secondary cyclone unit having a secondary dust case for collecting dust separated by the secondary swirl chamber, a secondary discharge port for discharging air in the secondary swirl chamber, and a side wall of the primary swirl chamber
- the cyclone separator according to the present invention by adopting the above configuration, it is possible to efficiently separate dust from dust-containing air and suppress noise.
- FIG. 3 is a sectional view taken along the line aa of the cleaner body 5 shown in FIG. 2.
- FIG. 3 is a bb sectional view of the cleaner body 5 shown in FIG. 2.
- 2 is a perspective view showing an appearance of a cyclone separation device 50.
- FIG. 3 is a front view of a cyclone separator 50.
- FIG. 4 is a left side view of the cyclone separator 50.
- FIG. 3 is a front view of a cyclone separator 50.
- FIG. 3 is a top view of the cyclone separating device 50.
- FIG. It is AA sectional drawing of the cyclone separation apparatus 50 shown in FIG. It is BB sectional drawing of the cyclone separator 50 shown in FIG. It is CC sectional drawing of the cyclone separator 50 shown in FIG. It is DD sectional drawing of the cyclone separator 50 shown in FIG. It is EE sectional drawing of the cyclone separator 50 shown in FIG. It is FF sectional drawing of the cyclone separator 50 shown in FIG. It is a perspective view at the time of dust disposal of the cyclone separator 50. 2 is an exploded perspective view of a cyclone separator 50.
- FIG. 1 is a perspective view showing an appearance of a vacuum cleaner according to the present invention.
- the vacuum cleaner 100 includes a suction port body 1, a suction pipe 2, a connection pipe 3, a suction hose 4, and a cyclone-type vacuum cleaner body 5.
- the suction inlet 1 sucks in dust and air containing dust on the floor.
- One end of a straight cylindrical suction pipe 2 is connected to the outlet side of the suction port body 1.
- the other end of the suction pipe 2 is provided with a handle in which an operation switch for controlling the operation of the vacuum cleaner 100 is provided, and one end of the connection pipe 3 that is slightly bent in the middle is connected.
- a flexible bellows-shaped suction hose 4 is connected to the other end of the connection pipe 3. Furthermore, the vacuum cleaner body 5 is connected to the other end of the suction hose 4. A power cord is connected to the vacuum cleaner main body 5. When the power cord is connected to an external power source, electricity is supplied, and an electric blower described later is driven to perform a suction operation.
- the suction port body 1, the suction pipe 2, the connection pipe 3, and the suction hose 4 constitute a part of a suction path for allowing dust-containing air to flow from the outside to the inside of the cleaner body 5.
- FIG. 2 is a perspective view of the vacuum cleaner main body 5 of the electric vacuum cleaner of FIG. 1
- FIG. 3 is a plan view of the vacuum cleaner main body 5 of FIG. 1
- FIG. 4 is an aa cross section of the vacuum cleaner main body 5 shown in FIG. 5 is a cross-sectional view taken along line bb of the cleaner body 5 shown in FIG. 2
- FIG. 6 is a top view of the cleaner body 5 with the cyclone separator 50 removed
- FIG. 7 is an external view of the cyclone separator 50.
- FIG. 8 is a front view of the cyclone separator 50.
- FIG. 9 is a left side view of the cyclone separator 50
- FIG. 10 is a top view of the cyclone separator 50.
- FIG. 11 is a cross-sectional view taken along line AA of the cyclone separator 50 shown in FIG. 8
- FIG. 12 is a cross-sectional view taken along the line BB of the cyclone separator 50 shown in FIG. 8
- FIG. 13 is a cross-sectional view of the cyclone separator 50 shown in FIG.
- FIG. 14 is a sectional view taken along the line DD of the cyclone separator 50 shown in FIG. 13, and
- FIG. 15 is a sectional view taken along the line EE of the cyclone separator 50 shown in FIG.
- FIG. 18 is a sectional view taken along line FF of the cyclone separator 50 shown in FIG. 13,
- FIG. 17 is a perspective view of the cyclone separator 50 when dust is discarded, and
- FIG. 18 is an exploded perspective view of the cyclone separator 50.
- the vacuum cleaner main body 5 includes a suction air passage 49, a cyclone separator 50, an exhaust air passage 51, a filter 52, an electric blower 53, an exhaust port 54, and wheels 55.
- One end of the suction air passage 49 is connected to the suction hose 4 shown in FIG. 1 and is disposed along the outer wall of the side surface of the primary cyclone unit 10, and the other end is a primary that forms part of the cyclone separator 50. Connected to the primary inlet 11 of the cyclone unit 10.
- the cyclone separator 50 is connected to an exhaust air passage 51 disposed at the rear of the cleaner body 5 at the secondary discharge port 25 of the secondary cyclone unit 20 that constitutes the cyclone separator 50 similarly to the primary cyclone unit 10. .
- the exhaust air passage 51 is connected to the electric blower 53 disposed behind the cleaner body 5 through the filter 52 in the same manner as the exhaust air passage 51.
- the exhaust port 54 composed of a plurality of holes is formed on the side wall opposite to the side where the suction air passage 49 is installed.
- the cyclone separation device 50 includes a primary cyclone unit 10 and a secondary cyclone unit 20 that is provided in parallel with the primary cyclone unit 10 and connected to the downstream side of the primary cyclone unit 10.
- the primary cyclone unit 10 includes a primary inlet 11, a primary swirl chamber 12, a zero-order opening 113, a primary opening 13, a zero-order dust case 114, a primary dust case 14, and a primary discharge port body 15. And a primary discharge pipe 16.
- the primary swirl chamber 12 is provided with a substantially cylindrical primary cylindrical portion 12 b and a lower portion of the primary cylindrical portion 12 b, and the tip is a portion of the side wall surface of the primary swirl chamber 12.
- the first conical portion 12a is formed in a substantially conical shape, the diameter of which becomes smaller toward the tip, and the primary opening 13 formed at the tip of the primary cone 12a.
- a zero-order opening 113 is formed in a part of the primary cylindrical portion 12 b, and the zero-order opening 113 opens at a position lower than the primary inlet 11 and communicates with the zero-order dust case 114.
- the primary dust case 14 is formed so that the upper end thereof extends above the primary opening 13 in order to compress the dust collected in the primary dust case 14.
- the primary discharge port body 15 is provided with a substantially cylindrical hollow cylindrical portion 15b and a conical portion that is provided at the lower portion of the cylindrical portion 15b and decreases in diameter toward the tip (downward in FIG. 11).
- 15a, and the side wall of the cylindrical portion 15b and the conical portion 15a includes a primary discharge port 15c formed of a large number of holes. Further, the lowermost portion of the primary discharge port 15 is positioned below the primary inflow port 11.
- the secondary cyclone unit 20 includes a secondary inlet 21, a secondary swirl chamber 22, a secondary opening 23, a secondary dust case 24, a secondary discharge port 25, and a secondary discharge pipe 26.
- the secondary swirl chamber 22 forms a side wall surface of the secondary swirl chamber 22 and is provided in a substantially cylindrical secondary cylindrical portion 22b and a lower portion of the secondary cylindrical portion 22b.
- the secondary conical portion 22a has a substantially conical shape, and a secondary opening 23 formed at the front lower end of the secondary conical portion 22a.
- the tip end side of the secondary conical portion 22a is provided so as to protrude into the secondary dust case 24 as shown in FIG.
- the zero-order dust case 114 is disposed so as to surround the secondary dust case 24 and a part of the secondary swirl chamber 22 protruding into the secondary dust case 24, and the primary dust case 14,
- the secondary dust case 24 is formed as one part.
- the primary discharge pipe 16 is provided so as to communicate the primary discharge port 15 c and the secondary inlet 21, and the secondary discharge pipe 26 includes the secondary discharge port 25 and the exhaust air passage 51.
- the cleaner body 5 causes the dust-containing air that has flowed into the interior through the suction port body 1, the suction pipe 2, the connection pipe 3, and the suction hose 4, to the suction air passage 49, the primary inlet 11, and the primary swirl chamber 12.
- the primary exhaust port 15c, the primary exhaust pipe 16, the secondary inflow port 21, the secondary swirl chamber 22, the secondary exhaust port 25, and the secondary exhaust pipe 26 are cleaned by aeration in order, and the exhaust air passage 51 and the filter 52 are cleaned.
- a structure for discharging to the outside of the cleaner body 5 through an exhaust path including the electric blower 53 and the exhaust port 54 is formed.
- FIG. 1 When power is supplied to the electric blower 53 by the operation of an operation unit (not shown) by the user and the electric vacuum cleaner 100 starts driving, dust-containing air is sucked from the suction port body 1 by the suction force of the electric blower 53. After flowing through the suction pipe 2 through the suction pipe 2 in the order of the connection pipe 3 and the suction hose 4, it flows into the primary inlet 11 of the primary cyclone unit 10 through the flow indicated by the broken line with an arrow in FIG. 6. To do.
- the dust-containing air that has flowed into the primary inlet 11 flows along the side wall of the cylindrical primary cylindrical portion 12 b of the primary swirl chamber 12 to become a swirl airflow, and the swirl airflow is forced near the central axis of the primary swirl chamber 12. While forming the vortex region and the quasi-free vortex region on the outer peripheral side thereof, the vortex region flows toward the lower side of the primary swirl chamber 12 due to the path structure and gravity. At this time, centrifugal force acts on the dust in the swirling dust-containing air, and the dust-containing air is separated into dust and air by the force.
- dust having a large specific gravity for example, large sand, pebbles, etc .; hereinafter referred to as dust A
- dust A dust having a large specific gravity
- the dust A trapped in the 0th-order dust case 114 has a relatively large specific gravity as described above, and thus is difficult to re-scatter and accumulates at the bottom inside the 0th-order dust case 114.
- dust-containing air containing dust that has not been collected in the zero-order dust case 114 flows below the primary swirl chamber 12, that is, from the primary cylindrical portion 12b toward the primary conical portion 12a while swirling.
- the swirling radius that is, the diameter of the primary conical portion 12a
- dust B dust having a specific gravity smaller than that of dust A
- dust B can be separated by centrifugal force, and the separated dust B is separated from the primary opening 13. It is collected and accumulated in the primary dust case 14.
- the air from which the dust A and the dust B are removed from the dust-containing air rises along the central axis of the cylindrical portion 12b of the primary swirl chamber 12 of the primary cyclone unit 10, and the conical portion 15a of the primary discharge port 15 and It passes through the primary discharge port 15 c provided in the cylindrical portion 15 b and flows from the primary discharge pipe 16 into the secondary cyclone unit 20 via the secondary inlet 21.
- the air that has flowed into the secondary inlet 21 flows almost horizontally along the side wall of the cylindrical secondary cylindrical portion 22b of the secondary swirl chamber 22 to form a swirling air current. While forming a quasi-free vortex region on the outer peripheral side, it flows downward due to its path structure and gravity.
- the exhausted air then descends in the secondary conical portion 22 a of the secondary swirl chamber 22 and then rises and is exhausted to the outside via the secondary discharge port 25.
- the diameter of the secondary cyclone unit 20 is configured to be smaller.
- the opening area of the secondary outlet 25 is configured to be smaller than the opening area of the primary inlet 11 so that the turning speed in the turning chamber is higher in the secondary cyclone part 20 than in the primary cyclone part 10. ing.
- the primary discharge port 15c is constituted by a large number of fine holes provided in the cylindrical portion 15b and the conical portion 15a. Thereby, it is possible to suppress the passage of dust larger than the opening of the primary discharge port 15c from the dust-containing air that passes from the primary cyclone unit 10 to the secondary cyclone unit 20, and the primary discharge port 15c passes through the cylindrical portion 15b.
- the conical portion 15a is provided on the side wall to remove dust clogged in the primary discharge port 15c by the swirling airflow flowing around the primary discharge port 15c, thereby suppressing the clogging of the dust into the primary discharge port 15c.
- the upward flow from the lower side of the primary swirl chamber 12 can be discharged smoothly, thereby reducing the pressure loss. Even if very long thread-like dust, such as hair, is wound around the conical portion 15a, it is easy to remove due to the conical shape of the conical portion 15a.
- the dust A whose centrifugal force is smaller than that of the dust A can be collected in the primary dust case 14 while the dust A that is relatively easily subjected to centrifugal force is reliably collected by the zero-order dust case 114. it can.
- the ratio of dust contained in the dust-containing air sucked by the vacuum cleaner decreases in the order of dust A, dust B, and fine dust. Therefore, the zero-order dust case 114 that collects the dust A has a larger capacity than the other dust cases, and the secondary dust case 24 that collects the fine dust has a smaller capacity than the other dust cases.
- a compact cyclone separator can be obtained.
- the secondary cyclone unit 20 has a higher dust collection efficiency because the swirl speed of the air flow is faster than that of the primary cyclone unit 10.
- the secondary cyclone unit 20 having a high air flow swirl speed has higher dust collection efficiency than the primary cyclone unit 10, but the noise is larger than that of the primary cyclone unit 10.
- the airflow of the dust-containing air flowing from the primary inlet 11 Since the zero-order opening 113 communicating with the zero-order duct case 114 is formed on the wall surface of the primary swirl chamber 12 in the tangential direction of the air flow of the dust-containing air with respect to the swirling direction of Intrusion of air flow can be suppressed to a minute.
- the primary dust case 14 provided below the primary cyclone unit 10 has dust separated by a force such as downward pushing by the air flow in addition to the centrifugal force of the air flow of the swirling dust-containing air.
- the air flow becomes larger. Therefore, in the zero-order dust case 114, the noise generated when the airflow flows is smaller than the primary dust case 14, and the friction sound generated when the dust rubs against the wall surface is also reduced. Therefore, as shown in FIGS. 8 and 13, by covering at least part of the secondary cyclone unit 20 with the zero-order dust case 114, the secondary cyclone unit 20 that is the source of the loudest sound and the user can Sound generated from the secondary cyclone unit 20 by providing a part having an air layer with least sound generation and at least one wall surface, that is, a zero-order dust case 114 in the cyclone separating apparatus 50 between the existing external space. Can be insulated. Thereby, the noise which generate
- the primary discharge port 15c is formed in the primary discharge port body 15 which protrudes in the primary turning chamber 12, and the front-end
- the lowermost portion of the primary discharge port 15 may be configured to be opposed to the position facing the opening surface of the zero-order opening 113 or below the opening surface.
- the angle of the swirling direction of the dust-containing air flowing in from the primary inlet 11 is directed downward from the 0th-order opening 113, and the swirling of the airflow wind occurs below the opening surface of the 0th-order opening 113. It becomes easy.
- the amount of dust-containing air that directly enters the zero-order dust case 114 is reduced. That is, the stirring of the dust in the zero-order dust case 114 is reduced, and the friction noise is further reduced.
- the amount of airflow swirling in the zero-order dust case 114 is reduced, and the airflow sound is also reduced. In this way, by making a configuration that reduces the amount of noise generated in the zero-order dust case 114, it is possible to further reduce noise leaking from the cyclone separation device 50 to the outside.
- a part of the secondary swirl chamber 12 having the largest friction sound between the dust and the wall surface in the secondary cyclone unit 20 is used, and the 0th order having the smallest friction sound between the dust and the wall surface among the cyclone separator 50. Since it is covered with the dust case 114, an object having a low rubbing sound and an object having a large rubbing sound are covered. As a result, since the air in the zero-order dust case absorbs a large noise generated from the secondary swirl chamber 12, the noise can be considerably effectively prevented and the noise of the entire cyclone separator 50 is reduced.
- the tangential direction of the swirling flow in the primary swirl chamber 12 is almost parallel to the line connecting the center of the primary swirl chamber 12 and the center of the secondary swirl chamber 22. It is comprised so that it may not be formed in the site. Thereby, it is possible to prevent the swirling flow from directly entering the 0th-order opening 113. Therefore, the inflow of wind into the 0th-order dust case 114 is reduced, and the stirring of the dust in the 0th-order dust case is reduced, so that the friction noise between the dust and the wall surface in the 0th-order dust case 114 is further reduced. As a result, the sound generated from the secondary cyclone unit 20 is prevented from leaking out of the cyclone separator 50, and the effect of suppressing noise is further enhanced.
- a part of the primary swirl chamber 12 having the largest friction sound between the dust and the wall surface in the primary cyclone unit 10 shown in FIG. 13 is covered with a zero-order dust case 114 having the smallest friction sound between the dust and the wall surface in the primary cyclone unit 10.
- the zero-order dust case 114 has a very low rubbing sound as described above.
- an object with a low rubbing sound and an object with a large rubbing sound are covered.
- sound can be effectively prevented, and the noise of the entire cyclone separator 50 is reduced.
- FIG. 13 a part of the secondary swirl chamber 22 having the largest friction sound between the dust and the wall surface in the secondary cyclone unit 20 shown in FIG. 13 is used as a secondary dust having the smallest friction sound between the dust and the wall surface in the secondary cyclone unit 20. You may comprise so that it may cover with the case 24.
- FIG. 13 a part of the secondary swirl chamber 22 having the largest friction sound between the dust and the wall surface in the secondary cyclone unit 20 shown in FIG. 13 is used as a secondary dust having the smallest friction sound between the dust and the wall surface in the secondary cyclone unit 20. You may comprise so that it may cover with the case 24.
- the secondary conical portion 22a is provided in the lower part of the secondary cylindrical portion 22b of the secondary swirl chamber 22, and the tip end portion has a substantially conical shape with a diameter decreasing toward the tip,
- the direction of the airflow is bent, so that dust such as sand and pebbles in the air violently hits the secondary conical portion 22a. . Therefore, the sound of air rub and the sound of sand and pebbles are added to generate a loud noise.
- the secondary dust case 24 is provided below the secondary conical portion 22a, and the swirling flow having the highest speed at the secondary opening 23 which is the tip of the secondary conical portion 22a is secondary.
- both the zero-order dust case 114 and the secondary dust case 24 containing the secondary dust case 24 are cylinders having a substantially circular cross section. Therefore, by installing both in a substantially concentric manner, the velocity of the airflow in the zero-order dust case 114 is made uniform, and the flow disturbance can be suppressed. As a result, the rubbing or collision between the dust and the wall surface is made uniform, so that noise due to non-uniform rubbing or collision between the dust and the wall surface is eliminated as compared with the case where the dust and the wall surface are not concentric. it can.
- the secondary dust case 24 may be configured to extend from the secondary opening at the tip of the secondary conical portion 22 a of the secondary swirl chamber 22.
- the secondary opening at the tip of the secondary conical portion 22a of the secondary swirl chamber 22 is connected to the secondary dust case 24 in the axial direction of the secondary conical portion 22a and is opposed to the secondary opening.
- At least a part of the secondary dust case 24 on the wall side is formed by a secondary conical portion.
- at least a part of the secondary conical portion 22a is covered with a zero-order dust case, and a portion of the secondary conical portion 22a covered with the zero-order dust case 114 is located on the opposite side of the zero-order opening 113.
- the secondary cyclone unit 20 is connected in series downstream of the primary cyclone unit 10. Accordingly, the amount of air flowing into both the primary cyclone unit 10 and the secondary cyclone unit 20 is substantially equal.
- the wind speed in the primary cyclone part 10 is made slower than the wind speed in the secondary cyclone part 20. I can do it.
- the level of dust and wall rubbing noise generated in the zero-order dust case can be made smaller than the level of dust and wall rubbing noise generated in the secondary dust case, thereby reducing noise. I can do it.
- the average diameter of the primary swirl chamber 12 and the average diameter of the secondary swirl chamber 22 shown in FIGS. 13 and 17 may be configured to be different.
- the wind speeds in the primary cyclone part 10 and the secondary cyclone part 20 are different. Therefore, by configuring the average diameter of the primary swirl chamber 12 and the average diameter of the secondary swirl chamber 22 to be different, it is possible to change the rotation speed of the airflow swirling the primary swirl chamber 12 and the secondary swirl chamber 22.
- the frequency range of sound generated from the swirl chamber can be made different, and resonance of sound can be suppressed.
- the primary discharge port 15c is formed by drilling into the primary discharge port body 15 protruding into the primary swirl chamber 12, but the present invention is not limited to this. Any opening may be used as long as it is in communication with 21.
- the cyclone separation device and the vacuum cleaner according to the present invention collect the air and dust by centrifugal separation by turning the dust-containing air (air containing dust) sucked from outside the machine.
- the present invention can be used for a cyclone separator and a vacuum cleaner equipped with the cyclone separator.
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Abstract
Description
図1は本発明に係る電気掃除機の外観を示す斜視図である。図1に示すように、電気掃除機100は、吸込口体1と、吸引パイプ2と、接続パイプ3と、サクションホース4と、サイクロン方式の掃除機本体5とから構成されている。吸込口体1は床面上の塵埃及び含塵空気を吸い込む。吸込口体1の出口側には真直な円筒状の吸引パイプ2の一端が接続されている。吸引パイプ2の他端には、電気掃除機100の運転を制御する操作スイッチが設置された取手が設けられており、中途にて若干折れ曲がった接続パイプ3の一端が接続されている。接続パイプ3の他端には、可撓性を有する蛇腹状のサクションホース4の一端が接続されている。さらに、サクションホース4の他端には、掃除機本体5が接続されている。掃除機本体5には電源コードが接続されており、電源コードが外部電源に接続されることで、通電し、後述する電動送風機が駆動されて吸引動作を行う。吸込口体1、吸引パイプ2、接続パイプ3およびサクションホース4は、含塵空気を掃除機本体5の外から内部に流入させるための吸引経路の一部を構成する。
サイクロン分離装置50は、一次サイクロン部10と、この一次サイクロン部10と並設され、かつ一次サイクロン部10の下流側に接続された二次サイクロン部20とから構成されている。
一次サイクロン部10は、一次流入口11と、一次旋回室12と、0次開口部113と、一次開口部13と、0次ダストケース114と、一次ダストケース14と、一次排出口体15と、一次排出管16と、を備えている。
図13に示すように、一次旋回室12は、その側壁が、略円筒形状の一次円筒部12bと、この一次円筒部12bの下部に設けられ、先端部は一次旋回室12の側壁面の一部を成し、先端に近づくほど径が小さくなる略円錐形状の一次円錐部12aと、一次円錐部12aの先端に形成された一次開口部13とから構成されている。
一次円筒部12bの一部には0次開口部113が形成され、0次開口部113は一次流入口11よりも低い位置に開口し、0次ダストケース114と連通する。一次ダストケース14は、一次ダストケース14に捕集された塵埃を圧縮するために、その上端を一次開口部13よりも上方にまで延在するよう形成されている。
図11に示すように、一次排出口体15は、ほぼ円筒形の中空の円筒部15bと、円筒部15bの下部に設けられ、先端(図11では下方)に近づくほど径が小さくなる円錐部15aと、を備え、円筒部15bと円錐部15aの側壁には多数の孔で構成された一次排出口15cで構成される。また、一次排出口15の最下部は一次流入口11よりも下方に位置づけられている。
二次サイクロン部20は、二次流入口21と、二次旋回室22と、二次開口部23と、二次ダストケース24と、二次排出口25と、二次排出管26とを備えている。
二次旋回室22は、二次旋回室22の側壁面を成し、略円筒形状の二次円筒部22bと、この二次円筒部22bの下部に設けられ、先端に近づくほど径が小さくなる略円錐形状の二次円錐部22aと、二次円錐部22aの先下端に形成された二次開口部23とから構成されている。ここで、二次円錐部22aの先端側は、図13に示すように二次ダストケース24内に突出するように設けられている。
また、上述の0次ダストケース114は、二次ダストケース24及び二次ダストケース24内に突出した二次旋回室22の一部を包囲するように配置されていると共に、一次ダストケース14、二次ダストケース24は1つの部品として形成されている。
ユーザーによる操作部(図示せず)の操作により電動送風機53に電源が供給されて、電気掃除機100が駆動を開始すると、電動送風機53の吸引力により、吸込口体1から含塵空気が吸引され、吸引パイプ2を通じて、接続パイプ3、サクションホース4の順に吸引経路を流れた後、図6の矢印付きの破線で示されている流れを経て、一次サイクロン部10の一次流入口11へ流入する。一次流入口11へ流入した含塵空気は、一次旋回室12の円筒形の一次円筒部12bの側壁に沿って流入して旋回気流となり、その旋回気流は一次旋回室12の中心軸近傍の強制渦領域とその外周側の準自由渦領域とを形成しながら、その経路構造と重力とにより一次旋回室12の下方に向かって流れていく。
このとき、旋回している含塵空気の中の塵埃には遠心力が作用し、その力によって含塵空気が塵埃と空気に分離される。ここで、遠心力によって分離される塵埃のうち、比重が大きい塵埃(例えば大きな砂や小石等。以下、塵埃Aという)は一次旋回室12に壁面に設けられている0次開口部113から0次ダストケース114内に飛び出して捕集される。また、0次ダストケース114に捕捉された塵埃Aは、前述するように比較的比重が大きいため再飛散しづらく、0次ダストケース114内部の底部に蓄積される。
一方、0次ダストケース114に捕集されなかった塵埃を含む含塵空気は、旋回しながら一次旋回室12の下方、つまり一次円筒部12bから一次円錐部12aに向かって流れていく。一次円錐部12aに進んだ旋回流は、下降するほど、旋回半径(つまり一次円錐部12aの径)が小さくなるため、旋回速度が増大する。これにより、塵埃Aよりも比重が小さい塵埃(例えば綿塵埃は、細かい軽砂等。以下、塵埃Bという)を遠心力によって分離することができ、これにより分離した塵埃Bは一次開口部13から一次ダストケース14内に捕集され蓄積される。
なおここで、1次ダストケース14の形状をD形に形成することにより、D形状の角部分に空気の淀みを作ることができ、この淀みによって塵埃をため易くすることが出来る。
ここで、各サイクロン部の排出口付近(つまり、一次排出口15c、二次排出口25付近)の各旋回室の径を比べると、二次サイクロン部20の方が径が小さくなるよう構成している。さらに、二次排出口25の開口面積は、一次流入口11の開口面積より小さく構成して、旋回室内部での旋回速度が一次サイクロン部10より二次サイクロン部20の方が早くなるようにしている。これにより、一次サイクロン部10で捕集できなかった微細塵を、二次サイクロン部20の二次ダストケース24に捕集することが可能となる。
これにより、一次サイクロン部10から二次サイクロン部20へ抜ける含塵空気から、一次排出口15cの開口よりも大きい塵埃が通過することを抑制することが出来ると共に、一次排出口15cを円筒部15bと円錐部15aの側壁に設けることで、一次排出口15c周囲を流れる旋回気流によって、一次排出口15cに詰まった塵埃が取り除かれ、塵埃が一次排出口15cに詰まるのを抑制している。また、一次排出口体15の下部を円錐形状にすることにより、一次旋回室12の下方からの上昇流をスムーズに排出することができ、これにより圧損を低減することができる。また、非常に長い糸状の塵埃、例えば髪の毛などが円錐部15aに巻きついてしまっても、円錐部15aの円錐形状により取り除き易い。
なお、一般的に、電気掃除機によって吸引される含塵空気の中に含まれる塵埃の割合は、塵埃A、塵埃B、微細塵の順に少なくなる。そのため、塵埃Aを捕集する0次ダストケース114を他のダストケースよりも大きい容量とし、微細塵を捕集する二次ダストケース24を他のダストケースよりも小さい容量とすることで、よりコンパクトなサイクロン分離装置とすることが出来る。
上述したように、二次サイクロン部20は一次サイクロン部10より空気流の旋回速度が速いため集塵効率が高い。しかしながら、旋回速度が速いと空気流風の旋回によって生じる気流音や空気流によって旋回する塵埃と旋回部の内壁面との摩擦音による騒音が大きくなる。したがって、空気流の旋回速度が速い二次サイクロン部20は、集塵効率は一次サイクロン部10よりも高いが、一次サイクロン部10よりも、騒音が大きくなる。
一方、一次サイクロン部10に設けられた一次ダストケース14と0次ダストケース114に流れ込む空気流の量を比較すると、0次ダストケース114では、一次流入口11から流入する含塵空気の空気流の旋回方向に対し、この含塵空気の空気流の接線方向の一次旋回室12の壁面に0次ダクトケース114と連通する0次開口部113が形成されているので、0次ダストケース114への空気流の入り込みは微小に抑えることができる。これに対し、一次サイクロン部10の下方に設けられた一次ダストケース14は、旋回する含塵空気の空気流の遠心力に加え、この空気流による下方向への押し込み等の力により分離した塵埃を捕集するようにしているため、0次ダストケース114と比べて、空気流の入り込みが大きくなる。したがって、一次ダストケース14よりも0次ダストケース114のほうが、気流が流れ込むことによって発生する騒音が小さく、また塵埃が壁面に擦れる時に発生する摩擦音も小さくなる。
そこで、図8及び図13に示すように、0次ダストケース114で二次サイクロン部20の少なくとも一部を覆うことで、最も大きい音の発生源である二次サイクロン部20と、使用者が存在する外部空間との間に、サイクロン分離装置50において最も音の発生の少ない空気層と少なくとも一つの壁面を有する部位、つまり0次ダストケース114を設けることで二次サイクロン部20から発生する音を遮音することが出来る。
これにより、サイクロン分離装置50から発生する騒音を抑制することができる。
このように、0次ダストケース114に発生する騒音量を減らすような構成にすることにより、サイクロン分離装置50から外部に漏れる騒音をより減少させることができる。
結果、0次ダストケース内の空気が二次旋回室12から発生する大きな騒音を吸収するため、騒音をかなり効果的に防音でき、サイクロン分離装置50全体の騒音が低下する。
一次旋回室12の一部を、0次ダストケース114で覆うことで、擦れ音が小さい物で擦れ音が大きい物を覆う形となる。
結果、効果的に防音でき、サイクロン分離装置50全体の騒音が低下する。
二次旋回室22の一部を二次ダストケース24で覆うことで、擦れ音が小さい物で擦れ音が大きい物を覆う形となる。結果、サイクロン分離装置50全体の騒音が低下する。
るため、騒音抑制効果をより一層向上させることができる。
さらに二次旋回室22の二次円錐部22aの先端の二次開口部から二次ダストケース24が延設するように構成してもよい。このとき、二次旋回室22の二次円錐部22aの先端の二次開口部で、二次円錐部22aの軸方向に、二次ダストケース24と接続し、二次開口部と対向する二次ダストケース24の壁側の少なくとも一部を、二次円錐部にて構成する。そして、二次円錐部22aの少なくとも一部を0次ダストケースで覆い、0次開口部113の対面に二次円錐部22aの0次ダストケース114に覆われている部分が位置するように構成する。
これにより、塵埃が0次開口部113から流入した際に、塵埃を円錐に接触させ、軸方向の速度成分とダストケースの延設方向の速度成分を持たせることが出来るため、ダストケースの下方向深部まで塵埃を送り込むことが出来る。
5 掃除機本体、 10 一次サイクロン部、 11 一次流入口、
12 一次旋回室、 12a 一次円錐部、 12b 一次円筒部、
13 一次開口部、 14 一次ダストケース、 15 一次排出口体、
15a 円錐部、 15b 円筒部、 15c 一次排出口、
20 二次サイクロン部、 21 二次流入口、 22 二次旋回室、
22a 二次円錐部、 22b 二次円筒部、 23 二次開口部、
24 二次ダストケース、 25 二次排出口、 49 吸引風路、
50 サイクロン分離装置、 51 排気風路、 52 フィルター、
53 電動送風機、 54 排気口、 55 車輪、 100 電気掃除機、
113 0次開口部、 114 0次ダストケース。
Claims (8)
- 外部から吸引した含塵空気が流れ込む一次流入口と、前記一次流入口から吸い込まれた含塵空気を旋回させることで前記含塵空気から塵埃を分離する一次旋回室と、前記一次旋回室の下方に設けられた一次開口部から、前記一次旋回室によって分離された塵挨を捕集する一次ダストケースと、前記一次旋回室内の空気を排出する一次排出口とを有する一次サイクロン部と、
前記一次排出口から排出された空気が流れ込む二次流入口と、前記二次流入口から吸い込まれた空気を旋回させることで前記空気からさらに塵挨を分離する二次旋回室と、前記二次旋回室に設けられた二次開口部から、前記二次旋回室よって分離された塵埃を捕集する二次ダストケースと、前記二次旋回室内の空気を排出する二次排出口とを有する二次サイクロン部とを備え、
前記一次サイクロン部には、前記一次旋回室の側壁に設けられた開口部から、前記一次旋回室によって分離された塵挨を捕集する0次ダストケースを設け、前記0次ダストケースを、前記二次サイクロン部の少なくとも一部を覆うように配置されてなることを特徴とするサイクロン分離装置。 - 前記0次ダストケースは、前記二次サイクロン部のうち、少なくとも前記二次旋回室を覆うことを特徴とする請求項1に記載のサイクロン分離装置。
- 前記開口部は、前記一次旋回室の旋回流の接線方向が、前記一次旋回室の中心軸上と前記二次旋回室の中心軸上とを結ぶ線と平行にならない前記一次旋回室の側壁部分に穿設することを特徴とする請求項1または請求項2に記載のサイクロン分離装置。
- 前記一次排出口は、前記旋回室内に突出する一次排出口体の側壁に形成され、前記一次排出口体の先端が前記一次流入口より下方に位置するように構成することを特徴とする請求項1~3のいずれかに記載のサイクロン分離装置。
- 前記一次排出口体の先端部は、前記開口部の開口面と対向あるいは前記開口面より下方に位置するよう構成したことを特徴とする請求項4に記載のサイクロン分離装置。
- 前記一次流入口の断面積を、前記二次流入口の断面積より大きくしたことを特徴とする請求項1~5のいずれかに記載のサイクロン分離装置。
- 前記一次サイクロン部の一次旋回室と前記二次サイクロン部の二次旋回室の平均径が異なるよう構成したことを特徴とする請求項1~6のいずれかに記載のサイクロン分離装置。
- 前記請求項1~7のいずれかに記載のサイクロン分離装置を搭載したことを特徴とする電気掃除機。
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GB1212770.0A GB2490270B (en) | 2010-02-04 | 2011-02-03 | Cyclone separator and vacuum cleaner |
NZ601902A NZ601902A (en) | 2010-02-04 | 2011-02-03 | Cyclone separator and vacuum cleaner |
US13/575,364 US9226631B2 (en) | 2010-02-04 | 2011-02-03 | Cyclone separator and vacuum cleaner |
CN201180008194.4A CN102740752B (zh) | 2010-02-04 | 2011-02-03 | 旋风分离装置和电动吸尘器 |
HK12113613.6A HK1172807A1 (en) | 2010-02-04 | 2012-12-31 | Cyclone separator device and electric cleaner |
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KR100500833B1 (ko) | 2003-05-24 | 2005-07-12 | 삼성광주전자 주식회사 | 진공청소기의 이중사이클론 집진장치 |
KR100601896B1 (ko) | 2004-05-12 | 2006-07-19 | 삼성광주전자 주식회사 | 사이클론 집진장치 및 진공청소기 |
KR101148125B1 (ko) * | 2005-01-07 | 2012-05-23 | 삼성전자주식회사 | 사이클론 청소기 |
GB2426473B (en) * | 2005-05-27 | 2008-11-05 | Dyson Technology Ltd | Cyclonic separating apparatus |
US20070144116A1 (en) * | 2005-12-23 | 2007-06-28 | Samsung Electronics Co., Ltd. | Cyclonic cleaner |
WO2008006280A1 (fr) * | 2006-07-03 | 2008-01-17 | Suzhou Kingclean Floorcare Co., Ltd. | Silencieux de cyclone piur appareil de nettoyage et dispositif d'élimination de la poussière le comprenant |
CN201275033Y (zh) * | 2008-08-20 | 2009-07-22 | 泰怡凯电器(苏州)有限公司 | 旋风分离器、旋风分离装置及装有该装置的真空吸尘器 |
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2010
- 2010-02-04 JP JP2010023274A patent/JP4947161B2/ja active Active
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2011
- 2011-01-31 TW TW100103617A patent/TWI409046B/zh not_active IP Right Cessation
- 2011-02-03 NZ NZ601902A patent/NZ601902A/en not_active IP Right Cessation
- 2011-02-03 GB GB1212770.0A patent/GB2490270B/en not_active Expired - Fee Related
- 2011-02-03 US US13/575,364 patent/US9226631B2/en not_active Expired - Fee Related
- 2011-02-03 CN CN201510293900.4A patent/CN104840151B/zh not_active Expired - Fee Related
- 2011-02-03 CN CN201180008194.4A patent/CN102740752B/zh not_active Expired - Fee Related
- 2011-02-03 WO PCT/JP2011/052243 patent/WO2011096476A1/ja active Application Filing
-
2012
- 2012-12-31 HK HK12113613.6A patent/HK1172807A1/xx not_active IP Right Cessation
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2015
- 2015-10-09 HK HK15109886.1A patent/HK1209008A1/xx not_active IP Right Cessation
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20130025794A (ko) * | 2011-09-02 | 2013-03-12 | 삼성전자주식회사 | 진공청소기 및 그 집진장치 |
CN102973205A (zh) * | 2011-09-02 | 2013-03-20 | 三星电子株式会社 | 真空吸尘器及其灰尘分离装置 |
EP2564750A3 (en) * | 2011-09-02 | 2014-12-17 | Samsung Electronics Co., Ltd. | Vacuum cleaner having a dust separating apparatus |
KR101920429B1 (ko) * | 2011-09-02 | 2019-02-08 | 삼성전자주식회사 | 진공청소기 및 그 집진장치 |
CN114098506A (zh) * | 2020-08-31 | 2022-03-01 | 美诺两合公司 | 无袋吸尘器 |
Also Published As
Publication number | Publication date |
---|---|
JP4947161B2 (ja) | 2012-06-06 |
GB2490270A (en) | 2012-10-24 |
HK1172807A1 (en) | 2013-05-03 |
CN104840151A (zh) | 2015-08-19 |
TWI409046B (zh) | 2013-09-21 |
GB2490270B (en) | 2014-03-05 |
US9226631B2 (en) | 2016-01-05 |
TW201200095A (en) | 2012-01-01 |
JP2011160828A (ja) | 2011-08-25 |
CN104840151B (zh) | 2017-08-25 |
CN102740752A (zh) | 2012-10-17 |
HK1209008A1 (en) | 2016-03-24 |
NZ601902A (en) | 2013-12-20 |
US20130025086A1 (en) | 2013-01-31 |
CN102740752B (zh) | 2015-07-01 |
GB201212770D0 (en) | 2012-08-29 |
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