JP2020000448A - Cyclone separator and vacuum cleaner - Google Patents

Abstract

To provide a cyclone separator suppressing deflation of an air impermeable bag in suction, and capable of attaching the air impermeable bag to a dust collection part without exposing it to the outside of the dust collection part.SOLUTION: A cyclone separator 100 according to the present invention includes: a swirl chamber 115 swirling dust-containing air to separate the dust therefrom; and a dust collection chamber 131 communicating to an opening formed in the swirl chamber 115 and capturing the dust separated by the swirl chamber 115. The dust collection chamber 131 includes an air impermeable bag 300 removably installed in the inside thereof, a projection part 119 projecting from a dust collection chamber top surface 118 in a direction of a dust collection chamber bottom surface 134, and a ring member 200 disposed between the projection part 119 and a dust collection chamber inner wall 132. An opening edge portion 301 of the air impermeable bag 300 passes between the inside of the ring member 200 and the projection part 119 to be folded back and can be disposed between the outside of the ring member 200 and the dust collection chamber inner wall 132.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cyclone separation device and a vacuum cleaner having the cyclone separation device.

  A dust collector having a cleaner body, an electric blower housed inside the cleaner body, an exhaust port having a suction port and a filter attached thereto, and an intake port detachably attached to the dust collector section. A dust-collecting bag that collects dust by making the exhaust port communicate with the air-tight vent, and a dent prevention unit that prevents dent of the dust-collecting bag due to suction of the electric blower, and is provided at one end of the dust-collecting bag. There is a known type in which an opening located is protruded sideways from a discharge port of a dust cup of a dust collecting portion and is sandwiched therebetween to fix a dust collecting bag to the dust collecting portion. Reference 1).

JP 2003-144361 A

  However, in the device disclosed in Patent Document 1, in order to fix the air-impermeable dust collection bag (impermeable bag) to the dust collection portion, the end of the air-impermeable bag is outside the dust collection portion. Exposure to. This degrades the appearance of the cyclone separation device.

  The present invention has been made to solve such a problem. The purpose is to attach the air-impermeable bag to the dust collecting section so that the air-blowing bag can suppress the bleeding of the air-impermeable bag due to the suction of the electric blower and without exposing the air-impermeable bag outside the dust collecting section. It is an object of the present invention to obtain a cyclone separating device and a vacuum cleaner which can be used.

  The cyclone separation device according to the present invention, the swirl chamber that swirls the dust-containing air flowing from the inflow port along the side surface and separates dust from the dust-containing air, and communicates with an opening formed in the swirl chamber, A dust collecting chamber for collecting dust separated by the swirling chamber, wherein an air-impermeable bag can be removably installed inside the dust collecting chamber, and a top surface of the dust collecting chamber is provided. And a ring member disposed between the protrusion and the inner wall of the dust collection chamber is provided, and an opening of the air-impermeable bag is provided. The edge is folded back between the inside of the ring member and the protrusion, and can be disposed between the outside of the ring member and the inner wall of the dust collection chamber.

  Further, a vacuum cleaner according to the present invention includes the cyclone separation device configured as described above, and an electric blower that generates an airflow that causes dust-containing air to flow into the swirl chamber.

  ADVANTAGE OF THE INVENTION According to the cyclone separation apparatus and electric vacuum cleaner which concerns on this invention, it can suppress a dent of an impermeable bag by the suction of an electric blower, and, without exposing an impermeable bag outside a dust collection part, collects. There is an effect that an impermeable bag can be attached to the dust part.

It is a perspective view showing the whole composition of the vacuum cleaner provided with the cyclone separation device concerning Embodiment 1 of this invention. FIG. 1 is a cross-sectional view schematically showing a configuration of a cyclone separation device according to Embodiment 1 of the present invention. FIG. 3 is a perspective view of a ring member included in the cyclone separating device according to Embodiment 1 of the present invention. It is a perspective view which shows typically the example of a structure of the principal part of the separation part case with which the cyclone separation apparatus which concerns on Embodiment 1 of this invention is provided. It is a perspective view which shows typically another example of the structure of the principal part of the separation part case with which the cyclone separation apparatus which concerns on Embodiment 1 of this invention is provided. FIG. 6 is a cross-sectional view along the line AA shown in FIG. 2 according to the configuration example of FIG. 5. FIG. 7 is a sectional view taken along section BB shown in FIG. 6. It is sectional drawing corresponding to FIG. 6 by another example of the separation part case with which the cyclone separation device which concerns on Embodiment 1 of this invention is provided. FIG. 9 is a cross-sectional view taken along a cross-section CC shown in FIG. 8. FIG. 5 is a cross-sectional view schematically illustrating a configuration of a cyclone separation device according to Embodiment 2 of the present invention. It is a sectional view showing typically composition of a cyclone separation device concerning Embodiment 3 of this invention. It is sectional drawing in section DD shown in FIG. It is a perspective view of a ring member with which a cyclone separation device concerning Embodiment 3 of this invention is provided. FIG. 13 is a cross-sectional view schematically illustrating a configuration of a cyclone separation device according to Embodiment 4 of the present invention. FIG. 13 is a cross-sectional view schematically illustrating a configuration of a cyclone separation device according to Embodiment 5 of the present invention. FIG. 13 is a cross-sectional view schematically illustrating a configuration of a cyclone separation device according to Embodiment 6 of the present invention.

  An embodiment for carrying out the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description is appropriately simplified or omitted. The present invention is not limited to the following embodiments, and can be variously modified without departing from the spirit of the present invention.

Embodiment 1 FIG.
1 to 9 relate to the first embodiment of the present invention. FIG. 1 is a perspective view showing an overall configuration of a vacuum cleaner provided with a cyclone separating device. FIG. 2 is a sectional view schematically showing the configuration of the cyclone separation device. FIG. 3 is a perspective view of a ring member provided in the cyclone separation device. FIG. 4 is a perspective view schematically showing a configuration example of a main part of a separation unit case provided in the cyclone separation device. FIG. 5 is a perspective view schematically showing another example of the configuration of the main part of the separation unit case provided in the cyclone separation device. FIG. 6 is a cross-sectional view taken along a cross section AA shown in FIG. 2 according to the configuration example of FIG. FIG. 7 is a sectional view taken along section BB shown in FIG. FIG. 8 is a cross-sectional view corresponding to FIG. 6 illustrating another example of the separation unit case included in the cyclone separation device. FIG. 9 is a cross-sectional view taken along a cross-section CC shown in FIG.

  As shown in FIG. 1, a vacuum cleaner 1 including a cyclone separator 100 according to Embodiment 1 of the present invention includes a suction port body 50, a suction pipe 40, a connection pipe 30, and a suction hose 20. , And a cleaner body 10.

  The suction port body 50 is for sucking dirt (dust) on the floor surface together with air from an opening formed downward. The suction port body 50 is provided with a connection part for exhaust at the center part in the longitudinal direction. The suction pipe 40 is formed of a straight member having a hollow cylindrical shape. One end (intake side) of the suction pipe 40 is connected to a connection portion of the suction port body 50.

  The connection pipe 30 is formed of a hollow cylindrical member bent in the middle. One end (intake side) of the connection pipe 30 is connected to the other end of the suction pipe 40. The connection pipe 30 is provided with a handle 31. The handle 31 is intended to be operated by a cleaning person. An operation switch 32 for controlling the operation of the electric vacuum cleaner 1 is provided on the handle 31.

  The suction hose 20 is formed of a hollow member having a bellows shape with flexibility. One end (intake side) of the suction hose 20 is connected to the other end of the connection pipe 30.

  The cleaner main body 10 separates dust from air containing dust (dust-containing air), and discharges the air (clean air) from which dust has been removed (for example, returns it to the room). A hose connection port 14 is formed at the front end of the cleaner body 10. The other end 0 of the suction hose 20 is connected to the hose connection port 14 of the cleaner body 10.

  The cleaner main body 10 includes an electric blower 15 and a power cord (not shown). The power cord is wound around a cord reel unit (not shown) inside the cleaner body 10. When the power cord is connected to the external power supply, internal devices such as the electric blower 15 are energized. The electric blower 15 is driven by energization, and performs a preset suction operation according to an operation on the operation switch 32.

  The inside of the suction port body 50, the suction pipe 40, the connection pipe 30, and the suction hose 20 is formed continuously. When the electric blower 15 performs a suction operation, dust on the floor surface is sucked into the suction port body 50 together with air. The dust-containing air sucked into the suction port body 50 passes through the inside of the suction port body 50, the suction pipe 40, the connection pipe 30, and the suction hose 20, and is sent to the cleaner body 10. As described above, the suction port body 50, the suction pipe 40, the connection pipe 30, and the suction hose 20 form an air passage for allowing dust-containing air to flow into the interior of the cleaner body 10 from the outside.

  The cleaner main body 10 includes a housing unit 11 and a cyclone separating device 100. The cyclone separation device 100 is provided in the accommodation unit 11 in a detachable manner. The housing unit 11 houses various devices such as an electric blower 15, a power cord, and a cord reel unit. The storage unit 11 includes wheels 12. The accommodation unit 11 has an exhaust port 13 formed therein.

  The cyclone separation device 100 is for separating dust from dust-containing air and temporarily storing the separated dust. The cyclone separator 100 separates dust from air by centrifugal force by swirling dust-containing air inside. That is, the cyclone separation device 100 has a cyclone separation function. The specific configuration and function of the cyclone separation device 100 will be described later.

  The electric blower 15 includes an air passage formed in the electric vacuum cleaner 1, that is, an air passage for allowing dust-containing air to flow into the inside of the vacuum cleaner book, an intake air passage, an air passage in a cyclone separating device described later, and This is for generating an airflow in an exhaust air path (not shown).

  When the electric blower 15 starts the suction operation, an airflow (suction air) is generated in each air path formed in the vacuum cleaner 1. The dust-containing air sucked into the suction port body 50 is taken into the inside of the cleaner body 10 through the hose connection port 14. The dust-containing air that has flowed into the inside of the cleaner body 10 is sent to the cyclone separating device 100 from the hose connection port 14 through the intake air passage. The airflow generated inside the cyclone separator 100 will be described later. The air (clean air) discharged from the cyclone separation device flows into an exhaust air passage formed in the housing unit 11 and passes through the electric blower 15 in the exhaust air passage. The air that has passed through the electric blower 15 further proceeds through the exhaust air path, and is discharged from the exhaust port 13 to the outside of the cleaner main body 10 (the vacuum cleaner 1).

  Next, the cyclone separation device 100 will be described with reference to FIG. The cyclone separator 100 has a substantially cylindrical shape as a whole. The cyclone separating apparatus 100 includes a separating unit case 110, a dust collecting unit case 130, and a ring member 200. In addition, an impermeable bag 300 can be detachably attached inside the cyclone separation device 100.

  The cyclone separating device 100 can be divided into a separating unit case 110 and a dust collecting unit case 130. The separating unit case 110 and the dust collecting unit case 130 are made of, for example, a molded product. The separation unit case 110, the dust collection unit case 130, the ring member 200, and the air-impermeable bag 300 are disassembled or assembled into the state shown in FIG. 2 by a preset operation (for example, an operation on a lock mechanism). It is configured to be able to. Further, only the dust collecting unit case 130 can be removed from the state shown in FIG. By appropriately arranging the separating unit case 110 and the dust collecting unit case 130, a swirling chamber 115 and a dust collecting chamber 131, which will be described later, are formed in the cyclone separating apparatus 100. The cyclone separator 100 can be used without attaching the impermeable bag 300.

  The separation unit case 110 includes an inflow pipe 111, a swirling chamber 115, and a discharge pipe 113. Further, a discharge port 114 and a swirl chamber opening 117 are formed in the separation unit case 110. The swirling chamber 115 has a hollow substantially cylindrical shape. The swirling chamber 115 has a cylindrical portion having a cylindrical upper end, and a conical portion having a lower end having a diameter decreasing downward, and the lower portion of the conical shape is cut off. The swirling chamber 115 includes an upper cylindrical portion and a lower conical portion. The cylindrical portion has a cylindrical shape. The conical portion has an inverted truncated conical shape in which the lower side of the conical shape whose diameter decreases toward the lower side is cut off. The lower end of the cylindrical portion and the upper end of the conical portion are connected. The conical shape of the swirling chamber 115 may be an uncut shape as long as the dust collection volume of the cyclone separation device 100 allows. The swirling chamber 115 is disposed so as to protrude into the dust collection chamber 131.

  The swirling chamber 115 is a space for swirling the dust-containing air. A swirl chamber opening 117 is formed in the side wall of the swirl chamber 115. The swirling chamber opening 117 is disposed over the cylindrical portion and the conical portion of the swirling chamber 115. In the swirling chamber 115, dust that continues to swirl in the cylindrical portion may be generated due to the balance between the centrifugal force and the mass of the dust. By arranging the swirling chamber opening 117 over the cylindrical portion and the conical portion of the swirling chamber 115, dust that tends to stay in the cylindrical portion can be discharged to the dust collecting chamber 131 described later.

  The interior of the swirl chamber 115 communicates with the interior of the dust collection chamber 131 via the swirl chamber opening 117. The dust subjected to the centrifugal force in the swirling chamber 115 swirls along the side wall of the swirling chamber 115. The swirled dust is transferred to the dust collection chamber 131 through the swirl chamber opening 117 at the position of the swirl chamber opening 117 provided on the side wall of the swirl chamber. Only dust separated by centrifugation is transferred into the dust collection chamber 131, and a swirling flow for separating the dust does not flow.

  That is, in this embodiment, the swirling chamber 115 for centrifugal separation and the dust collecting chamber 131 for collecting dust are separated by the wall of the swirling chamber 115. When the dust collection chamber 131 and the swirl chamber 115 are formed in the same space, for example, when a highly odorous dust such as animal hair is sucked, the sucked dust swirls in the swirl chamber 115 (and the dust collection chamber 131). to continue. In this case, the odorous dust keeps turning, so that the odorous airflow is exhausted from the exhaust port 13 of the vacuum cleaner 1. By partitioning the swirling chamber 115 and the dust collecting chamber 131, it is possible to prevent dust having an odor from being stirred by the swirling flow. Therefore, discomfort given to the user during cleaning can be reduced.

  The inflow pipe 111 has, for example, a hollow rectangular tube shape. One end of the inflow pipe 111 is connected to a cylindrical portion of the swirling chamber 115. One end of the inflow pipe 111 is open inside the cylindrical portion, and the other end is open outward. The other end of the inflow pipe 111 forms an inlet 112 for taking dust-containing air into the cyclone separator 100. The one end of the inflow pipe 111 forms a swirl chamber inlet 116 for taking dust-containing air passing through the inflow port 112 into the inside of the cylindrical portion (swirl chamber 115).

  The inflow pipe 111 is connected to an upper part of the cylindrical portion of the swirling chamber 115. For this reason, the swirl chamber inlet 116 is arranged at the upper part of the cylindrical part (the uppermost part of the side wall forming the swirl chamber 115). The inflow pipe 111 has its axis perpendicular to the central axis of the cylindrical portion and is arranged in the tangential direction of the cylindrical portion.

  It is important that the inflow pipe 111 is arranged along the tangential direction of the cylindrical portion. For this reason, the inflow pipe 111 may not be a straight line but may be an arc shape that is in contact with the cylindrical portion along the circumferential direction. By arranging the inflow pipe 111 along the tangential direction of the cylindrical portion, while smoothly flowing air from the inflow pipe 111 into the cylindrical portion, the pressure loss when the inflow air merges with the swirling flow inside the cylindrical portion is reduced. Can be reduced.

  In this way, the swirling chamber 115 that swirls the dust-containing air flowing in from the inflow port 112 along the side surface and separates the dust from the dust-containing air is configured. When the electric blower 15 operates, an airflow for causing the dust-containing air to flow into the swirling chamber 115 is generated.

  The discharge pipe 113 has a hollow cylindrical shape. The lower side of the discharge pipe 113 projects downward from the top surface of the swirling chamber 115 and is disposed inside the swirling chamber 115. The lower side of the discharge pipe 113 is arranged on the central axis of the swirling chamber 115. The lower end of the discharge pipe 113 opens inside the swirling chamber 115.

  The discharge pipe 113 is bent in an L shape at an intermediate portion above the top surface of the swirling chamber 115. An end of the discharge pipe 113 opposite to the swirling chamber 115 is opened to form a discharge port 114. In a state where the cyclone separating device 100 is attached to the storage unit 11, the outlet 114 communicates with the upstream side of the electric blower 15 of the storage unit 11. When the electric blower 15 operates in this state, the clean airflow from which dust has been removed in the swirling chamber 115 is sucked by the negative pressure generated by the electric blower 15.

  The shape of the discharge pipe 113 below the top surface of the swirl chamber 115 may be a conical shape whose diameter becomes smaller as it goes downward, in addition to the substantially cylindrical shape shown here. In this case, it is desirable to provide a plurality of holes in the side wall of the discharge pipe 113 in the swirl chamber 115 and to allow the clean air flow to flow into the discharge pipe 113 from the plurality of holes. The diameter of the plurality of holes is, for example, about 2 mm. By doing so, it is possible to prevent cotton dust, hair (human, animal), and the like having a small mass that is not easily centrifuged from flowing into the discharge tube 113.

  The dust collection unit case 130 is a member that forms at least a part of the outer periphery of the dust collection chamber 131. In this embodiment, the dust collecting unit case 130 includes a dust collecting chamber bottom surface 134, a dust collecting chamber outer wall 133, and a dust collecting chamber inner wall 132. The dust collecting chamber bottom surface 134 has a circular shape. The dust collection chamber outer wall 133 and the dust collection chamber wall 132 have a cylindrical shape with a diameter larger than the cylindrical portion of the swirl chamber 115. The outer wall 133 and the inner wall 132 of the dust collection chamber and the cylindrical portion of the swirl chamber 115 are arranged concentrically. The dust collection chamber outer wall 133 and the dust collection chamber wall 132 are erected from the outer peripheral edge of the bottom surface 134 of the dust collection chamber. In this way, a bottomed cylindrical portion having one (lower) closed bottom is formed by the dust collection chamber bottom surface 134, the dust collection chamber outer wall 133, and the dust collection chamber wall 132.

  Further, a top surface 118 of the dust collection chamber is provided in the separation unit case 110. By properly combining the separating unit case 110 and the dust collecting unit case 130, the dust collecting room top surface 118 of the separating unit case 110 and the dust collecting room bottom surface 134 and the dust collecting room wall 132 of the dust collecting unit case 130 An enclosed space is formed. In this space, a dust collection chamber 131 is formed outside the swirling chamber 115. The dust collection chamber 131 communicates with the swirl chamber 115 via the swirl chamber opening 117 as described above. The dust collection chamber 131 collects the dust separated in the swirling chamber 115.

  An impermeable bag 300 can be detachably installed inside the dust collecting chamber 131. The air-impermeable bag 300 is made of a material having a property of preventing the passage of air, and is structurally configured to prevent the passage of air inside and outside the bag. One end of the air-impermeable bag 300 is closed. The other end of the air-impermeable bag 300 is opened to form an opening edge 301. As the air-impermeable bag 300, a so-called polybag, a plastic bag, or the like, which is generally commercially available, can be used. The air-impermeable bag 300 is preferably transparent or translucent. By doing so, the amount of dust accumulated inside the air-impermeable bag 300 can be visually recognized from the outside.

  A projection 119 and a ring member 200 are provided inside the dust collection chamber 131 for attaching and detaching the air-impermeable bag 300. As shown in FIG. 4, the protrusion 119 is formed so as to protrude from the top surface 118 of the dust collection chamber toward the bottom surface 134 of the dust collection chamber. That is, the protruding portion 119 is provided on the separation portion case 110. The protrusion 119 has a cylindrical shape having a diameter larger than that of the cylindrical portion of the swirling chamber 115 and smaller than the diameter of the dust collection chamber wall 132. As shown in FIG. 2, the protrusion 119 is disposed outside the swirl chamber 115 and inside the dust collection chamber wall 132.

  The ring member 200 is an annular member having a diameter larger than the protrusion 119 and smaller in diameter than the dust collection chamber wall 132. As shown in FIG. 3, the ring member 200 has an inner peripheral wall 201, an outer peripheral wall 202, and an upper end 203. As shown in FIG. 2, the ring member 200 is disposed in the dust collection chamber 131 near the top surface 118 of the dust collection chamber. Furthermore, the ring member 200 is disposed between the protrusion 119 in the dust collection chamber 131 and the dust collection chamber wall 132.

  Next, the attachment of the air-impermeable bag 300 to the cyclone separator 100 configured as described above will be described. First, the opening edge portion 301 of the air-impermeable bag 300 is passed between the inside of the ring member 200 and the projecting portion 119 from the dust collection chamber bottom surface 134 side. That is, the protrusion 119 is inserted from above into the air-impermeable bag 300 with the opening edge 301 passing through the inside of the ring member 200 from below. Next, the opening edge portion 301 is folded back from the outside of the ring member 200 toward the dust collection chamber bottom surface 134 side. The opening edge 301 is disposed between the outside of the ring member 200 and the inner wall of the dust collection chamber 131. That is, the dust collecting unit case 130 is placed on the outside of the separating unit case 110, the ring member 200, and the impermeable bag 300 from below. In this manner, the opening edge 301 side of the air-impermeable bag 300 is folded and arranged along the inner peripheral wall 201, the upper end 203, and the outer peripheral wall 202 of the ring member 200.

  In addition, when actually assembling the cyclone separation device 100, the order described above is not required. For example, first, the ring member 200 is folded outward from the inside through the opening edge 301 of the air-impermeable bag 300 from below. Next, the ring member 200 and the air-impermeable bag 300 are placed in the dust collecting unit case 130. At this time, the opening edge portion 301 also enters the dust collecting portion case 130. Then, the separating unit case 110 is attached from above the dust collecting unit case 130 such that the protruding portion 119 enters the inside of the ring member 200 and the air-impermeable bag 300.

  By attaching the air-impermeable bag 300 as described above, the opening edge 301 of the air-impermeable bag 300 is sandwiched between the inner peripheral wall 201 of the ring member 200 and the protruding portion 119 of the separation portion case 110. You. The opening edge portion 301 of the air-impermeable bag 300 is also sandwiched between the outer peripheral wall 202 of the ring member 200 and the dust collection chamber wall 132 of the dust collection unit case 130.

  According to the cyclone separating device 100 and the vacuum cleaner 1 configured as described above, the entire impermeable bag 300 including the opening edge 301 of the dust collecting unit case 130 can be accommodated inside the cyclone separating device 100. For this reason, the impermeable bag 300 is not exposed outside the cyclone separator 100, and the appearance is not impaired.

  Generally, when the dust in the dust collection chamber 131 collected by the cyclone separator 100 is discarded, the dust collection unit case 130 is brought close to the trash box to discard the dust. However, the dust in the dust collection chamber 131 includes fine dust in powder form and dust having a large mass and volume such as fibers and sand. For this reason, when the dust is discarded from the dust collecting unit case 130, especially the fine dust soars up, which may give a user unsanitary and unpleasant feeling. According to the cyclone separation device 100 and the vacuum cleaner 1 according to this embodiment, dust in the dust collection chamber 131 is collected in the air-impermeable bag 300. Therefore, the collected dust may be wrapped in the air-impermeable bag 300 and the dust-impermeable bag 300 may be thrown away in a trash can. Therefore, it is not necessary to directly discard the dust from the dust collecting unit case 130, and the dust can be prevented from rising.

  The inside of the dust collection chamber 131 is always under a negative pressure while the electric blower 15 is being driven. Therefore, the air-impermeable bag 300 is sucked toward the swirling chamber opening 117 and tends to contract. When the air-impermeable bag 300 contracts, the swirl chamber opening 117 is closed, and it becomes difficult to collect the dust separated in the swirl chamber 115 in the dust collection chamber 131. Furthermore, even if it is possible to collect the dust, the volume of the dust collection chamber 131 decreases, the frequency of dust disposal increases, and the maintainability is impaired.

  In the cyclone separation apparatus 100 according to this embodiment, the impermeable bag 300 is held by the protrusion 119 so as not to shrink more than a certain amount. That is, the bottom of the air-impermeable bag 300 is pressed against the dust collecting chamber bottom surface 134 by the lower end of the protrusion 119. The side portion of the air-impermeable bag 300 is pressed by the side wall of the protrusion 119. For this reason, the shrinkage of the air-impermeable bag 300 due to the negative pressure in the dust collection chamber 131 generated during the operation of the vacuum cleaner 1 can be suppressed.

  Here, the air-impermeable bag 300 may be sandwiched between at least a part of the lower end of the protrusion 119 and the bottom surface 134 of the dust collection chamber. By doing so, the air-impermeable bag 300 can be more reliably fixed, and the shrinkage of the air-impermeable bag 300, particularly at the bottom, due to the negative pressure in the dust collection chamber 131 can be further suppressed.

  According to the cyclone separation device 100 and the vacuum cleaner 1 configured as described above, the air-impermeable bag 300 is not provided on the dust-collecting unit case 130 without exposing the impermeable bag 300 outside the dust-collecting unit case 130. Can be attached. And it can be used sanitarily without impairing the maintainability.

  The dimensions of the impermeable bag 300 are desirably about 300 mm long and 200 mm wide. With this dimension, the opening edge portion 301 (excess) of the air-impermeable bag 300 can be easily stored in the dust collection unit case 130.

  In the cyclone separator 100 and the vacuum cleaner 1 according to this embodiment, even if the ring member 200 and the air-impermeable bag 300 are not attached to the dust collecting unit case 130, the dust collecting unit case 130 and the separating unit case When assembling, the hermeticity inside the cyclone separating device 100 is ensured, and the shapes of the swirling chamber 115 and the dust collecting chamber 131 are not impaired. Therefore, even if the ring member 200 and the air-impermeable bag 300 are not attached, it can be used without deteriorating the cyclone separation performance and the dust collection performance.

  Next, another example of the cyclone separation device 100 according to this embodiment will be described with reference to FIGS. First, as shown in FIGS. 5 and 6, one or a plurality of notches 120 may be formed in the protrusion 119. FIGS. 5 and 6 show examples in which two notches 120 are provided in the protrusion 119. The cutout portion 120 is formed by cutting out from the dust collection chamber bottom surface 134 toward the dust collection chamber top surface 118.

  One of the notches 120 is arranged, for example, on a side wall of the protrusion 119 facing the swirl chamber opening 117. The other of the notches 120 is disposed, for example, on the side wall of the protruding portion 119 on the opposite side of the center axis of the swirling chamber 115 from the one notch 120 described above. When the dust is collected to the full capacity that can be stored in the dust collection chamber 131, the dust remains between the protrusion 119 and the swirl chamber 115 and remains on the separation unit case 110 side. It is also conceivable that it will not slide down into 300.

  Therefore, by providing the notch 120 in the protruding portion 119, dust is not trapped between the protruding portion 119 and the swirling chamber 115 in the portion where the notch 120 is present. Then, if the dust at the location of the notch 120 slides down into the air-impermeable bag 300, there is room in the dust collection chamber 131, and it is possible to further encourage the dust to slide down into the air-impermeable bag 300. That is, by providing the notch portion 120 in the protruding portion 119, dust in the dust collection chamber 131 can be easily slid down into the air-impermeable bag 300.

  If the notch 120 is too large, the impermeable bag 300 will be squeezed from the notch 120 due to the negative pressure in the dust collection chamber 131, and the dust collection capacity that can be collected in the dust collection chamber 131 will decrease. On the other hand, if the notch 120 is too small, the function of sliding the dust in the dust collection chamber 131 into the impermeable bag 300 cannot be sufficiently obtained. It is desirable to adjust the dimensions and shape of the height and width of the notch 120 in consideration of such conflicting effects.

  Also, the lower end corner 121 of the notch 120 shown in FIG. 5 may have a smooth corner, for example, an arc shape. By forming the lower end corner 121 into a smooth shape, for example, when attaching the separation unit case 110 to the dust collecting unit case 130 to which the impermeable bag 300 is attached, the lower end corner 121 of the protrusion 119 is impermeable bag. It is possible to prevent the device 300 from being hurt by being caught on it.

  In the configuration examples shown in FIGS. 5 and 6, as shown in FIG. 7, among the plurality of notches 120, the length of the notch 120 on the side facing the swirling chamber opening 117 of the protrusion 119 is The length of the other notch 120 may be shorter than that of the other notch 120. The side of the protruding portion 119 facing the swirl chamber opening 117 is a portion indicated by "a region near the opening" in FIG. The notch 120 in the area indicated by “area near the opening” in FIG. 6 is closer to the dust collection chamber than the notch 120 in the area indicated by “other area” in FIG. The length of the notch toward the top surface 118 is short.

  As described above, during operation of the vacuum cleaner 1, a negative pressure is generated in the dust collection chamber 131, and this negative pressure acts to squeeze the air-impermeable bag 300. In the dust collecting chamber 131, the location where the negative pressure is the highest is the swirl chamber opening 117. This is because the air in the dust collection chamber 131 returns to the swirl chamber opening 117 at the same time that the air flows into the dust collection chamber 131 from the swirl chamber 115 together with the dust separated by the swirl.

  It is desirable to dispose the cutout portion 120 in the “region near the opening” where dust passing through the swirling chamber opening 117 easily accumulates, from the viewpoint of the above-described action of sliding the dust into the impermeable bag 300. However, in the “area near the opening”, the negative pressure is also large at the same time, and the effect of the air-impermeable bag 300 shrinking is large. Therefore, by providing the cutout portion 120 having a shorter length in the “region near the opening” than the “other region”, the optimal effect of the dust slippage promotion effect and the dent suppression effect of the impermeable bag 300 is provided. It can make it easier to balance.

  Further, as a configuration example different from providing the cutout portion 120 in the protruding portion 119 as described above, a configuration example shown in FIGS. In this configuration example, the lower end portion 122 of the protrusion on the side facing the swirl chamber opening 117 is closer to the bottom surface 134 of the dust collection chamber than the lower end portions 122 of the other portions. That is, in the portion of the protrusion 119 in the “region near the opening” in FIG. 8, the lower end portion 122 of the protrusion extends close to the bottom surface 134 of the dust collection chamber. On the other hand, in the portion of the protrusion 119 in the “other region” in FIG. 8, the lower end portion 122 of the protrusion is slightly closer to the bottom surface 134 of the dust collection chamber than between the bottom surface 134 of the dust collection chamber and the top surface 118 of the dust collection chamber. Is located in the position.

  In this way, by extending the protruding portion 119 on the side facing the swirl chamber opening 117 toward the dust collecting chamber bottom surface 134 side than other parts, the impermeable bag 300 is sucked into the swirl chamber opening 117. Can be suppressed. Further, on the side not facing the swirling chamber opening 117, it is possible to promote the sliding of dust into the impermeable bag 300 by shortening the protruding portion 119.

Embodiment 2 FIG.
FIG. 10 relates to Embodiment 2 of the present invention, and is a cross-sectional view schematically illustrating a configuration of a cyclone separation device.

  In the second embodiment described here, in the configuration in which the notch is formed in the protrusion in the first embodiment, a protrusion is formed in the ring member, and the protrusion is passed through the notch. It is like that. Hereinafter, the cyclone separating apparatus and the vacuum cleaner according to the second embodiment will be described focusing on differences from the first embodiment. The configuration of which the description is omitted is basically the same as that of the first embodiment.

  In the cyclone separating device 100 according to Embodiment 2 of the present invention, as shown in FIG. 10, the ring member 200 includes a plurality of convex portions 210. Each of the plurality of convex portions 210 projects obliquely from the inner peripheral wall 201 of the ring member 200 toward the inside and toward the bottom 134 of the dust collection chamber. In the example shown here, the protrusion 210 first extends from the inner peripheral wall 201 to the swirl chamber 115 side, and then the distal end side is gently curved toward the dust collection chamber bottom surface 134.

  The width of each of the plurality of protrusions 210 is smaller than the width of each of the notches 120 of the protrusion 119. The side of the top surface 118 of the dust collection chamber of each notch 120 of the protrusion 119 reaches the position of the protrusion 210 of the ring member 200. The plurality of protrusions 210 of the ring member 200 are arranged to pass through the insides of the plurality of notches 120, respectively. Therefore, the tip side of the convex part 210 is disposed closer to the swirl chamber 115 than the protruding part 119.

  The cyclone separation device and the vacuum cleaner configured as described above can also provide the same effects as in the first embodiment. Further, when the separation unit case 110 is detached from the dust collection unit case 130, the dust collected in the dust collection room 131 can be retained in the dust collection room 131 by the protrusion.

  That is, when the separation unit case 110 is removed upward from the dust collection unit case 130, dust collected inside the projection 119 of the dust collection chamber 131 is removed together with the separation unit case 110 by, for example, friction with the projection 119. May lift upwards. In such a case, dust falls from the separation part case 110, and the usability deteriorates. According to the cyclone separation apparatus 100 of this embodiment, the provision of the convex portion 210 allows the dust to be trapped and move upward when the separating portion case 110 is lifted upward, thereby collecting the dust. It is possible to stay in the dust chamber 131. In addition, the tip side of the convex part 210 is curved toward the dust collecting chamber bottom surface 134. For this reason, even if the dust entering the dust collection chamber 131 from the swirl chamber opening 117 comes into contact with the projection 210 from above, it can fall to the bottom 134 of the dust collection chamber along the curve of the projection 210.

Embodiment 3 FIG.
11 to 13 relate to a third embodiment of the present invention. FIG. 11 is a cross-sectional view schematically showing the configuration of the cyclone separation device. FIG. 12 is a cross-sectional view taken along the line DD shown in FIG. FIG. 13 is a perspective view of a ring member provided in the cyclone separating device.

  In the third embodiment described here, the ring member can be supported by the ring support provided on the inner wall of the dust collection chamber in the configuration of the first or second embodiment. Hereinafter, the cyclone separating device and the vacuum cleaner according to the third embodiment will be described focusing on differences from the first embodiment, taking as an example a case based on the configuration of the first embodiment. The configuration for which the description is omitted is basically the same as that of the first or second embodiment.

  In the cyclone separating device 100 and the vacuum cleaner 1 according to the embodiment of the present invention, as shown in FIGS. 11 and 12, a plurality of ring support portions 141 are provided on the dust collection chamber inner wall 132. The ring support portion 141 protrudes inward (toward the swirling chamber 115) from the dust collection chamber wall 132. In the example described here, three ring support portions 141 are provided. The three ring support portions 141 are arranged at equal intervals along the inner periphery of the dust collection chamber 131.

  As shown in FIG. 13, the ring member 200 includes a supported part 220. The supported portion 220 projects outward from the outer peripheral wall 202 of the ring member 200. As shown in FIG. 11, when the ring member 200 is attached to the dust collecting part case 130, the supported part 220 is supported by being placed on the ring supporting part 141. By doing so, the mounting position of the ring member 200 to the dust collecting unit case 130 can be easily determined.

  In this configuration example, the supported portion 220 is provided over the entire circumference of the outer peripheral wall 202 of the ring member 200. By doing so, the supported portion 220 can be supported by the ring support portion 141 regardless of the direction in which the ring member 200 is placed.

  As shown in FIGS. 11 and 12, a groove 142 is formed between the ring support portions 141 of the dust collection chamber 132 so as to be relatively concave. As shown in FIG. 11, a gap having a predetermined size is formed between the dust collection chamber wall 132 and the outer peripheral wall 202 of the ring member 200 in the groove 142.

  When the ring member 200 to which the air-impermeable bag 300 is attached is put into the dust-collecting unit case 130, the air impermeable between the air-impermeable bag 300 and the dust-collecting unit case 130 causes the air-impermeable bag 300 to move inward. It will swell. According to this embodiment, by providing the groove 142, the air that has entered between the air-impermeable bag 300 and the dust-collecting unit case 130 causes the dust-collecting chamber inner wall 132 and the outer peripheral wall 202 to communicate with each other in the groove 142. You can escape through the gap. Therefore, it is possible to suppress the inward swelling of the air-impermeable bag 300.

  Further, when the separation unit case 110 is finally fitted from above the dust collection unit case 130 to which the impermeable bag 300 and the ring member 200 are attached, the impermeable bag 300 is placed inside the projection 119 of the separation unit case 110. Will be held down. At this time, if the air-impermeable bag 300 expands inward due to the air that has entered between the air-impermeable bag 300 and the dust collecting unit case 130, it becomes a resistance when the separation unit case 110 is attached. By releasing the air that has entered between the air-impermeable bag 300 and the dust collecting unit case 130 through the groove 142 between the dust collecting chamber inner wall 132 and the outer peripheral wall 202, such resistance is reduced, and the separating unit The assemblability of the case 110 and the dust collecting unit case 130 can be improved.

  In the embodiments described so far, the dust collection chamber top surface 118 is provided on the separation unit case 110 side, and all the side walls of the dust collection chamber 131 are provided on the dust collection unit case 130 side. In this regard, as shown in FIG. 11 in this embodiment, a part of the upper end side of the side wall of the dust collection chamber 131 may be provided on the separation unit case 110 side. That is, the separation unit case 110 and the dust collection unit case 130 may be divided in the middle of the side wall of the dust collection chamber 131. In this case, it is preferable that the upper end 203 of the ring member 200 is protruded above the upper end of the dust collecting unit case 130.

  By doing so, in a state where the separation unit case 110 is removed from the dust collection unit case 130, since the ring member 200 projects upward, the user grasps the ring member 200, and the ring member 200 and the air-impermeable The bag 300 can be easily attached and detached. In addition, a part of the upper end 203 of the ring member 200 may be further projected upward to function as a “knob”.

  The cyclone separation device 100 and the vacuum cleaner 1 configured as described above can also provide the same effects as those of the first or second embodiment. Further, it is possible to improve the assemblability of the separation unit case 110, the dust collection unit case 130 ring member 200, and the impermeable bag 300.

Embodiment 4 FIG.
FIG. 14 relates to the fourth embodiment of the present invention, and is a cross-sectional view schematically illustrating a configuration of a cyclone separation device.

  In the fourth embodiment described here, the dust collection chamber is provided so as to be connected to the lower end of the swirl chamber in any of the above-described first to third embodiments. Hereinafter, the cyclone separating apparatus and the vacuum cleaner according to the fourth embodiment will be described focusing on the differences from the first embodiment, taking as an example a case based on the configuration of the first embodiment. The configuration of which the description is omitted is basically the same as any one of the first to third embodiments.

  In the cyclone separation device 100 according to the embodiment of the present invention, as shown in FIG. 14, the lower end of the swirl chamber 115 is connected to the upper end of the dust collection chamber 131. That is, the lower end opening 135 is formed not at the side wall of the swirl chamber 115 but at the lower end of the conical portion of the swirl chamber 115. The interior of the swirling chamber 115 and the interior of the dust collection chamber 131 communicate with each other through the lower end opening 135. When viewed from the dust collection chamber 131, the lower end opening 135 is disposed on the top surface 118 of the dust collection chamber. When the vacuum cleaner 1 is operated, dust separated by centrifugation in the swirling chamber 115 slides down to the lower end opening 135 by its own weight, and is collected in the dust collecting chamber 131 through the lower end opening 135.

  The cyclone separation apparatus and the vacuum cleaner configured as described above can also provide the same effects as any of the first to third embodiments. Further, by separating the swirling chamber 115 for centrifugally separating the dust from the dust-containing air and the dust collecting chamber 131 for collecting the separated dust, the swirling flow in the swirling chamber 115 with a high wind speed is generated. It is possible to suppress the inflow into 131. For this reason, it becomes possible to suppress that the odorous dust in the dust collection chamber 131 is stirred, and it is possible to suppress the spread of the unusual odor outside the vacuum cleaner 1 and reduce the discomfort of the user.

Embodiment 5 FIG.
FIG. 15 relates to Embodiment 5 of the present invention, and is a cross-sectional view schematically illustrating a configuration of a cyclone separation device.

  In the fifth embodiment described here, the dust collection chamber is divided into two sections in any of the configurations of the first to third embodiments described above. Hereinafter, the cyclone separating device and the vacuum cleaner according to the fifth embodiment will be described focusing on the differences from the first embodiment, taking as an example a case based on the configuration of the first embodiment. The configuration of which the description is omitted is basically the same as any one of the first to third embodiments.

  In the cyclone separating apparatus 100 according to the embodiment of the present invention, as shown in FIG. 15, a partition extending from the conical portion of the swirl chamber 115 to the dust collecting chamber bottom surface 134 side allows the inside of the dust collecting section case 130 to be in the dust collecting chamber. 131 (zero-order dust collection chamber) and a primary dust collection chamber 136. The partition has a cylindrical shape whose diameter is smaller than the cylindrical portion of the swirling chamber 115.

  A swirl chamber opening 117 is formed in the side wall of the swirl chamber 115. The swirl chamber opening 117 is a first opening formed on the side surface of the swirl chamber 115. The inside of the dust collection chamber 131 that is the zero-order dust collection chamber communicates with the inside of the swirling chamber 115 through the swirling chamber opening 117. That is, the dust collection chamber 131 is a first dust collection chamber that communicates with the swirl chamber opening 117 that is the first opening.

  A lower end opening 135 is formed at the lower end of the conical portion of the swirling chamber 115. The lower end opening 135 is a second opening formed at the lower end of the swirling chamber 115. The interior of the primary dust collection chamber 136 communicates with the interior of the swirl chamber 115 via a lower end opening 135. That is, the primary dust collection chamber 136 is a second dust collection chamber that communicates with the lower end opening 135 that is the second opening.

  When the vacuum cleaner 1 operates and the dust-containing air swirls in the cylindrical portion of the swirling chamber 115, relatively large dust in the dust-containing air, for example, hair, sand, cotton, and the like is centrifuged and the swirling chamber opening 117 is formed. From the dust collecting chamber 131 (zero-order dust collecting chamber). After that, the airflow in the swirling chamber 115 gradually descends to the conical part while swirling. Then, for example, relatively small fine dust such as talc is separated by the conical portion of the swirling chamber 115 and falls from the lower end opening 135 into the primary dust collecting chamber 136 to be collected.

  The cyclone separation apparatus and the vacuum cleaner configured as described above can also provide the same effects as any of the first to third embodiments. Furthermore, dust that has not been completely centrifuged in the cylindrical portion above the swirling chamber 115 can be collected from the lower end of the swirling chamber 115 into the primary dust collecting chamber 136, and the cyclone separation performance can be improved.

  If the separation unit case 110 is detached from the dust collection unit case 130, the dust collected in the dust collection chamber 131 and the primary dust collection chamber 136 will both enter the air-impermeable bag 300. Therefore, it is possible to wrap and discard both dusts in the two dust collection chambers with one impermeable bag.

Embodiment 6 FIG.
FIG. 16 relates to Embodiment 6 of the present invention, and is a cross-sectional view schematically illustrating a configuration of a cyclone separation device.

  In the sixth embodiment described here, a secondary swirl chamber is provided downstream of the swirl chamber in any of the configurations of the first to fourth embodiments described above. Hereinafter, the cyclone separating apparatus and the vacuum cleaner according to the sixth embodiment will be described focusing on the differences from the first embodiment, taking as an example a case based on the configuration of the first embodiment. The configuration of which the description is omitted is basically the same as any one of the first to fourth embodiments.

  As shown in FIG. 16, the cyclone separating apparatus 100 according to the embodiment of the present invention includes a secondary swirling chamber 151 and a secondary dust collecting chamber 155. A hollow discharge shaft 157 is provided inside the swirling chamber 115. Further, a secondary swirling chamber 151 is provided further inside the discharge shaft 157. An inflow portion 158 is formed below the discharge shaft 157. The inflow portion 158 has a plurality of holes penetrating the discharge shaft 157 in and out. Inflow section 158 is made of resin or metal. Further, a filter may be provided in the inflow portion 158 instead of the plurality of holes. The airflow that has finished swirling in the swirling chamber 115 flows into the discharge shaft 157 through the inflow portion 158.

  The inside of the discharge shaft 157 and the inside of the secondary swirling chamber 151 communicate with each other through the secondary inlet 152. The secondary inlet 152 is an opening formed in the discharge shaft 157 and at the upper end of the secondary swirling chamber 151. Similarly to the swirling chamber 115, the secondary swirling chamber 151 has an inverted truncated conical shape with a cylindrical upper side and a hollow lower side. The secondary inlet 152 allows the airflow that has passed through the discharge shaft 157 to flow into the secondary swirl chamber 151 along the tangential direction of the secondary swirl chamber 151. Thus, the secondary swirling chamber 151 is in communication with the downstream side of the swirling chamber 115.

  An inclined surface 154 is provided in the dust collection chamber 131. The inclined surface 154 extends from the lower end of the swirling chamber 115 to the dust collecting chamber bottom surface 134 side. The inclined surface 154 divides the inside of the dust collecting unit case 130 into a dust collecting chamber 131 and a secondary dust collecting chamber 155. Therefore, the secondary dust collection chamber 155 is arranged inside the dust collection chamber 131. The secondary dust collection chamber 155 is for collecting dust separated in the secondary swirl chamber 151. At the lower end of the secondary swirling chamber 151, a secondary lower end opening 153 is formed. The inside of the secondary dust collecting chamber 155 communicates with the inside of the secondary swirling chamber 151 via the secondary lower end opening 153.

  The dust-containing air flowing into the secondary swirl chamber 151 from the secondary inlet 152 swirls in the secondary swirl chamber 151. By this swirling airflow, fine dust and the like remaining without being separated in the swirling chamber 115 are centrifuged. Then, the dust separated in the secondary swirling chamber 151 falls down in the secondary swirling chamber 151 and is collected in the secondary dust collecting chamber 155 through the secondary lower end opening 153. Note that the lower side of the discharge pipe 113 is disposed inside the secondary swirling chamber 151 along the central axis of the secondary swirling chamber 151. The clean air from which dust has been removed in the secondary swirling chamber 151 is discharged from the discharge pipe 113 to the outside of the cyclone separation device 100.

  The inclined surface 154 is a side surface of the secondary dust collection chamber 155. The inclined surface 154 is inclined inward downward. That is, at least a part of the side surface of the secondary dust collection chamber 155 is inclined inward downward. By doing so, dust in the secondary dust collection chamber 155 can be easily slid down along the inclined surface 154 to the bottom side of the secondary dust collection chamber 155.

  The bottom of the air-impermeable bag 300 is disposed between the lower end of the secondary dust collection chamber 155 and the bottom 134 of the dust collection chamber. By doing so, the air-impermeable bag 300 can be more reliably fixed, and the shrinkage of the air-impermeable bag 300, particularly at the bottom, due to the negative pressure in the dust collection chamber 131 can be further suppressed.

  A dust collection opening 156 is formed at the lower end of the secondary dust collection chamber 155. Therefore, the inside of the secondary dust collection chamber 155 communicates with the inside of the air-impermeable bag 300 through the dust collection opening 156. For this reason, if the separating unit case 110 is removed from the dust collecting unit case 130, the dust collected in the dust collecting chamber 131 and the secondary dust collecting chamber 155 will both enter the impermeable bag 300. Therefore, it is possible to wrap and discard both dusts in the two dust collection chambers with one impermeable bag.

  The cyclone separation device and the vacuum cleaner configured as described above can also provide the same effects as in the first embodiment. Further, dust that has not been completely centrifuged in the swirling chamber 115 can be separated in the secondary swirling chamber 151 and collected in the secondary dust collecting chamber 155, and the cyclone separation performance can be improved.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 10 Vacuum cleaner main body 11 Housing unit 12 Wheel 13 Exhaust port 14 Hose connection port 15 Electric blower 20 Suction hose 30 Connection pipe 31 Handle 32 Operation switch 40 Suction pipe 50 Suction port body 100 Cyclone separation device 110 Separation part case 111 Inflow pipe 112 Inflow port 113 Outflow pipe 114 Outlet port 115 Swirling chamber 116 Swirling chamber inlet 117 Swirling chamber opening 118 Dust collection chamber top surface 119 Projection 120 Notch 121 Lower corner 122 Projection lower end 130 Dust collector case 131 Dust collection chamber 132 Dust collection chamber wall 133 Dust collection chamber outer wall 134 Dust collection chamber bottom 135 Lower opening 136 Primary dust collection chamber 141 Ring support 142 Groove 151 Secondary swivel chamber 152 Secondary inlet 153 Secondary lower opening 154 Slope 155 Secondary dust collection chamber 156 Dust collection opening 157 Discharge shaft 158 Inflow portion 200 Ring member 201 Inner peripheral wall 202 Outer peripheral wall 203 Upper end portion 210 Convex portion 220 Supported portion 300 Impermeable bag 301 Opening edge

Claims (15)

A swirl chamber that swirls the dust-containing air flowing in from the inflow port along the side surface and separates dust from the dust-containing air;
A dust collection chamber that communicates with an opening formed in the swirl chamber and collects dust separated in the swirl chamber;
Inside the dust collecting chamber, an air-impermeable bag can be detachably installed, and a projecting portion formed from a top surface of the dust collecting chamber to a bottom direction of the dust collecting chamber, A ring member disposed between the protrusion and the inner wall of the dust collection chamber,
The opening edge of the air-impermeable bag is folded back between the inside of the ring member and the protrusion, and can be disposed between the outside of the ring member and the inner wall of the dust collection chamber. Cyclone separation equipment.   2. The cyclone separator according to claim 1, wherein a plurality of notches are formed in the protrusion from a bottom surface side of the dust collection chamber toward a top surface of the dust collection chamber. 3.   The cyclone separation device according to claim 2, wherein the plurality of notches are such that the notch on the side of the protrusion facing the opening is shorter than the other notches. The ring member includes a plurality of protrusions protruding from an inner peripheral wall of the ring member,
4. The cyclone separation device according to claim 2, wherein the plurality of protrusions are arranged to pass through the insides of the plurality of notches, respectively. 5.   2. The cyclone separator according to claim 1, wherein a lower end of a portion of the protrusion facing the opening is closer to a bottom surface of the dust collection chamber than a lower end of another portion. 3.   The cyclone according to any one of claims 1 to 5, wherein the projecting portion is capable of sandwiching the air-impermeable bag between at least a part of a lower end portion of the projecting portion and a bottom surface of the dust collection chamber. Separation device.   7. The inner wall of the dust collecting chamber is formed with a groove for forming a gap of a predetermined size between the inner wall of the dust collecting chamber and the outer peripheral wall of the ring member. The cyclone separation device according to any one of the above. An inner wall of the dust collection chamber is provided with a ring support protruding inside the dust collection chamber. The ring member protrudes outward from an outer peripheral wall of the ring member and is supported by the ring support. The cyclone separation device according to claim 7, further comprising a part. Separable portion case having the swirl chamber, and can be divided into a dust collecting portion case forming at least a part of the outer periphery of the dust collecting chamber,
9. The cyclone separator according to claim 1, wherein an upper end of the ring member protrudes above an upper end of the dust collecting unit case. 10.   The cyclone separation device according to any one of claims 1 to 9, wherein the opening is formed at a lower end of the swirl chamber. The opening has a first opening formed on a side surface of the swirling chamber, and a second opening formed at a lower end of the swirling chamber,
The dust collecting chamber according to any one of claims 1 to 9, wherein the dust collecting chamber includes a first dust collecting chamber communicating with the first opening, and a second dust collecting chamber communicating with the second opening. A cyclone separator as described. A secondary swirl chamber communicating with the downstream side of the swirl chamber;
A secondary dust collection chamber disposed inside the dust collection chamber, communicating with a secondary lower end opening formed at a lower end of the secondary swirl chamber, and collecting dust separated in the secondary swirl chamber; Further comprising
The cyclone separator according to any one of claims 1 to 9, wherein a bottom portion of the air-impermeable bag is disposed between a lower end portion of the secondary dust collection chamber and a bottom surface of the dust collection chamber. .   The cyclone separation device according to claim 12, wherein at least a part of a side surface of the secondary dust collection chamber is an inclined surface inclined inward downward.   14. The cyclone separator according to claim 12, wherein a dust collecting opening is formed at a lower end of the secondary dust collecting chamber. A cyclone separation device according to any one of claims 1 to 14,
An electric blower that generates an airflow that causes dust-containing air to flow into the swirling chamber.

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