JP7298039B1 - Dust collector and vacuum cleaner - Google Patents

Abstract

A dust collector in which dust accumulated in a second accumulation section is less likely to spill out when opened and clogging of the second accumulation section with dust is less likely to occur, and a vacuum cleaner equipped with the same. A third member (4), which is a dust collector, has a receiving part (40), which is a concave part forming a concave second collecting part (8) for collecting dust separated by a second separating part (6). The third member 4 is separable from the first member 2, which is a dust container, and the second member 3, which is a separator. [Selection drawing] Fig. 1

Description

An embodiment of the present invention relates to a dust collector having a plurality of separating units and collecting units, and a vacuum cleaner having the same.

Conventionally, as a dust collector used in an electric vacuum cleaner or the like, a first separation section for centrifugally separating coarse dust, that is, coarse dust, from dust-containing air, and fine dust, that is, fine dust, are separated from the air that has passed through the first separation section. and a second separation section that The separated coarse dust and fine dust are separately collected inside the cup-shaped container.

For example, it is known that a fine dust accumulation portion is set at the center portion of the lower end of the coarse dust accumulation portion with respect to the coarse dust accumulation portion. In this configuration, it is necessary to make the fine dust accumulating portion thinner than the cylindrical filter arranged at the center of the upper end of the coarse dust accumulating portion forming a part of the first separation portion. In order to drop fine dust down to the lower end of the filter, the fine dust accumulating portion has to be formed into an elongated shape.

On the other hand, for example, there is known a dust collecting portion that collects coarse dust, and a fine dust collecting portion is set at the upper end peripheral portion of the coarse dust collecting portion. In the case of this configuration, clogging or the like of the fine dust accumulating portion is unlikely to occur, but since the inner wall and the outer wall constituting the fine dust accumulating portion are arranged on separate members, the fine dust accumulating portion is opened when the dust is discarded. When removing the member on which the inner wall is arranged, the fine dust is lifted up by the inner wall, so careful work is required so that part of the lifted fine dust does not spill outside.

Japanese Patent No. 6869036 JP 2022-135553 A

The problem to be solved by the present invention is to provide a dust collector that prevents the dust accumulated in the second accumulation section from spilling out when opened and prevents the second accumulation section from being clogged with dust, and a vacuum cleaner equipped with the same. That is.

A dust collector of an embodiment includes a dust collection container, a separator, and a dust collector. The dust collection container has therein a first separation section for centrifugally separating dust from dust-laden air and a first accumulation section for collecting the dust separated by the first separation section. The separator has therein a second separation section for centrifugally separating dust from the air that has passed through the first separation section. The dust collector has a concave portion forming a concave second accumulation portion for collecting the dust separated by the second separation portion. A dust collector is separable from the dust container and the separator . The second stacking portion is annular or arcuate. The concave portion has an inner wall that constitutes the inner wall of the second accumulation portion. The separator has an inserting portion which has an outer diameter smaller than an inner diameter of the inner wall of the concave portion and can be inserted into and removed from the first separating portion through the inner wall of the inner wall. The inner wall extends in a direction in which the insertion portion is pulled out from the first separating portion .

It is a sectional view showing an exploded state of a dust collector of one embodiment. It is sectional drawing which shows the state which disassembled some dust collectors same as the above from FIG. It is a perspective view which shows the open state of the 2nd stacking part of the dust collector same as the above. It is sectional drawing which expands and shows the 2nd accumulation part of a dust collector same as the above. It is sectional drawing which expands and shows the 2nd isolation|separation part of a dust collector same as the above. It is sectional drawing which shows the assembly state of a dust collector same as the above. It is a perspective view which shows the assembly state of a dust collector same as the above. Fig. 2 is a perspective view showing a vacuum cleaner provided with the same dust collector.

An embodiment will be described below with reference to the drawings.

6 and 7, 1 indicates a dust collector. The dust collector 1 is also called a dust collection cup or the like, and separates and accumulates dust from dust-containing air. The dust collector 1 has a tubular, preferably cylindrical appearance, and is configured with its axial direction as its longitudinal direction. The dust collector 1 can be applied to various electrical devices at various angles. One end side or one side will be described as the downward direction, and the arrow U direction, that is, the other end side or the other side in the longitudinal direction of the dust collector 1 will be described as the upward direction. In other words, the vertical direction in the present embodiment is for the sake of explanation only, and does not limit the vertical direction in the use state or the use posture of the dust collector 1 in electrical equipment.

The dust collector 1 consists of several members. Preferably, the dust collector 1 consists of a plurality of members that are detachable from each other. Note that hereinafter, the term "detachable" basically means that a standard user can manually attach and detach without using a tool or the like or destroying a part by excessive external force. In this embodiment, the dust collector 1 is made up of a plurality of members that are detachable from each other in the longitudinal direction.

In the illustrated example, the dust collector 1 consists of a first member 2 , a second member 3 and a third member 4 . The first member 2, the second member 3, and the third member 4 may each be disassembled into smaller members, but in the assembled state of the dust collector 1 of this embodiment, basically the first member 2. The second member 3 and the third member 4 will be explained as members that are integrally used as a group. In this embodiment, the dust collector 1 is assembled with the third member 4 sandwiched between the first member 2 and the second member 3 . Hereinafter, the assembled state or the used state of the dust collector 1 refers to the state in which the first member 2, the second member 3 and the third member 4 are integrally assembled with each other.

The dust collector 1 is formed with a plurality of stages of separation units. In the present embodiment, the dust collector 1 includes a first separation section 5 that is a first stage or an upstream stage for separating coarse dust D1, which is coarse dust, from dust-containing air, and a first separation section 5 that passes through the first separation section 5 A second separation section 6, which is a second stage or a downstream stage, for further separating fine dust D2, which is fine dust, from the air is formed. Furthermore, the dust collector 1 further includes a first collecting portion 7 in which coarse dust D1 separated by the first separating portion 5 is accumulated, and fine dust D2 separated in the second separating portion 6. is formed. In the illustrated example, the first separation section 5 and the second separation section 6 are each centrifugal separation sections for centrifuging dust from air. In the present embodiment, in the assembled state of the dust collector 1, the first stacking portion 7 is located below the first separating portion 5 in the axial direction, with the first separating portion 5 as a reference. The separating portion 6 and the second stacking portion 8 are positioned above the first separating portion 5 on the side opposite to one side in the axial direction, and the second stacking portion 8 is positioned below the second separating portion 6. do. The axial direction of the first separation section 5 is the direction of the centrifugal axis of rotation in the first separation section 5 or a direction parallel thereto. Hereinafter, the term “parallel” is not limited to completely parallel, but includes substantially parallel and substantially parallel within tolerances and errors. Coarse dust D1 mainly refers to fibrous dust such as lint, hair, cotton dust, and dust having a large mass such as sand grains, and fine dust D2 mainly refers to particulate or powdery dust having a small mass say.

The first member 2 is also called a cup portion, a first dust collection cup, a dust collection container, or the like. The first member 2 is formed in a tubular shape. In the illustrated example, the first member 2 is formed cylindrical. A first separation section 5 and a first accumulation section 7 are arranged inside the first member 2 . In this embodiment, the first member 2 is a member that constitutes the first separating section 5 and the first stacking section 7 . In the assembled state of the dust collector 1 , the central axis of the first member 2 coincides with the central axis of the dust collector 1 . In the following, the term "match" is not limited to perfect match, but also includes substantially match within the tolerance or error range, substantially match, and the like.

For example, the first member 2 has a bottomed cylindrical shape having a circular bottom portion 20 and side wall portions 21 rising from the outer edge portion of the bottom portion 20 .

The bottom part 20 constitutes the lowest part of the dust collector 1 . The bottom portion 20 serves as a support portion for the dust collector 1 when the dust collector 1 is placed on a horizontal surface. The bottom portion 20 is formed in a circular flat plate shape.

The side wall portion 21 constitutes an outer shell on the lower end side of the dust collector 1 . The side wall portion 21 has a vertically elongated shape whose vertical dimension is larger than its diameter dimension. The side wall portion 21 surrounds the first separation portion 5 and the first accumulation portion 7 . That is, the side wall portion 21 is the outer wall of the first separation portion 5 and the first accumulation portion 7 . The central axis of the side wall portion 21 , that is, the central axis of the first member 2 coincides with the centrifugal central axis of the first separating portion 5 . Preferably, the side wall portion 21 is formed so as to gradually increase in diameter as it separates from the bottom portion 20, that is, from the bottom toward the top.

Further, the first member 2 is formed with an inlet 22 in the side wall portion 21 . The introduction port 22 is an opening that introduces the dust-laden air into the first separation section 5 located inside the first member 2 . The introduction port 22 is positioned most upstream of the airflow in the dust collector 1 and the first separation section 5 . The introduction port 22 is formed so as to introduce dust-containing air in a tangential direction to the inner peripheral surface of the side wall portion 21 . In this embodiment, the introduction port 22 is formed in a duct shape extending in the tangential direction of the side wall portion 21 . The introduction port 22 is positioned in the vertical middle portion of the side wall portion 21 . In the illustrated example, the introduction port 22 is located near the upper portion of the side wall portion 21 .

Moreover, as shown in FIG. The holding portion 23 is formed as a plate-shaped projecting portion projecting inwardly of the first member 2 in a direction crossing or orthogonal to the axial direction of the first member 2 . Preferably, the holding portions 23 are intermittently formed at a plurality of locations in the circumferential direction of the first member 2 or the side wall portion 21 . In this embodiment, the holding portion 23 is formed at the upper end portion of the side wall portion 21 .

Furthermore, in this embodiment, the first member 2 is formed with a member support portion 24 that supports the third member 4 . The member supporting portion 24 is a portion that supports the third member 4 so as not to fall into the first separating portion 5 (shown in FIG. 6) and the first stacking portion 7 (shown in FIG. 6) inside the first member 2. be. The member supporting portion 24 is formed in a saucer shape whose diameter is further enlarged in a stepped manner with respect to the upper end portion of the side wall portion 21 . In this embodiment, the member supporting portion 24 is formed above the holding portion 23 and constitutes the upper end portion of the first member 2 . The holding portion 23 is positioned at the stepped portion where the member supporting portion 24 and the side wall portion 21 continue. In the illustrated example, the member supporting portion 24 is formed over the entire circumference of the side wall portion 21 . An end opening 25 is formed at the upper end of the member supporting portion 24 . In this embodiment, the end opening 25 functions as a dust disposal port for discarding coarse dust D1 accumulated in the first accumulation section 7 . The dust disposal port may be formed at the lower end portion of the first member 2 so that it can be opened and closed by the bottom portion 20 .

Preferably, the first member 2 is made of a transparent member so that the inside, that is, at least a part of the first separation section 5 and the first accumulation section 7 can be viewed from the outside. Therefore, as shown in FIG. 7 , the first member 2 is formed with a mark portion 210 on the side wall portion 21 . The mark portion 210 serves as a guide for the accumulation limit of the coarse dust D1 in the first accumulation portion 7 shown in FIG. As shown in FIG. 7 , the mark portion 210 is positioned above the bottom portion 20 and below the introduction port 22 . In the first member 2, basically the region below the mark portion 210 or the region from the mark portion 210 to the upper surface of the bottom portion 20 functions as the first accumulation portion 7 (shown in FIG. 6), and the upper portion is the first separation portion. 5 (shown in FIG. 6). That is, the user visually observes the coarse dust accumulated in the first accumulation portion 7 (shown in FIG. 6) from the outside of the first member 2, and compares the position with the position of the mark portion 210, so that the first accumulation portion 7 (shown in FIG. 6) can determine whether coarse dust can still be collected or whether the coarse dust should be discarded. In the present embodiment, the mark portion 210 is formed as a line extending in the circumferential direction on the outer peripheral surface of the side wall portion 21. However, the mark portion 210 is not limited to this, and may be indicated by characters, patterns, or the like. Combinations and the like may also be used.

The second member 3 shown in FIG. 6 is also called a second separator assembly, a separator, or the like. A second separating portion 6 is arranged inside the second member 3 . The second member 3 includes an insertion portion 30 in which at least the lower end side is inserted into the first member 2 through the third member 4, and a member body portion 31 positioned above and outside the first member 2 and the third member 4. and have

The insertion portion 30 protrudes downward from the lower end portion of the member body portion 31 . The insertion portion 30 inserted in the first member 2 is spaced inwardly from the side wall portion 21 of the first member 2 and arranged coaxially with the first member 2 or the side wall portion 21 . The insertion portion 30 is formed in a cylindrical shape. The inserting portion 30 is inserted into the first separating portion 5, and the space inside the inserting portion 30 is an exhaust portion from the first separating portion 5, and the first separating portion 5 and the second separating portion It functions as a part of the communicating section that communicates with 6. In addition, in the present embodiment, the inserting portion 30 assists to configure the center of rotation of the centrifugal separation of the first separating portion 5 .

In the illustrated example, the insert portion 30 has a cylindrical filter portion 300 . The filter part 300 is the most downstream part of the airflow in the first separation part 5 . The filter part 300 is positioned so that at least a part thereof overlaps with the introduction port 22 in the vertical direction. The filter part 300 has a vent 3000 on the outer peripheral wall. Air flows out from the first separation section 5 and flows to the second separation section 6 through the vent 3000 . In this embodiment, vent 3000 is covered with filter 3001 . Alternatively, a large number of small-area vents 3000 may be formed so that the vents 3000 themselves function as filters.

The insertion section 30 also has a connecting section 301 . The connecting part 301 airtightly connects the first separating part 5 and the first stacking part 7 to the second stacking part 8 and/or the second separating part 6 in the assembled state of the dust collector 1 . The connecting portion 301 is positioned on the upper end side of the filter portion 300 . The connecting portion 301 is located above the air vent 3000 . The connection portion 301 protrudes outward from the outer peripheral wall of the filter portion 300 . The connection portion 301 is formed in an annular shape that extends along the entire circumference of the filter portion 300 and is arranged coaxially with the filter portion 300 .

As shown in FIG. 4 , the connection portion 301 has a seal portion 3010 . The sealing portion 3010 has an annular shape that extends along the entire circumference of the connecting portion 301, and in the assembled state of the dust collector 1, the outer peripheral portion is pressed against the third member 4 in the radial direction so that the first accumulation The part 7 and the second accumulation part 8 or the second separation part 6 are airtightly sealed. The seal portion 3010 is made of, for example, elastic elastomer or silicone rubber. The seal portion 3010 is held by a seal holding portion 3011 . The seal holding portion 3011 is formed on the outer peripheral wall of the filter portion 300 and opened outward. A sloped portion 3012 that slopes downward toward the outside is formed in the upper portion of the seal holding portion 3011 . The inclined portion 3012 covers at least part of the upper portion of the seal portion 3010 . Preferably, ramp 3012 covers the entire top of seal 3010 .

In addition, in the present embodiment, the interpolation section 30 further has a compression section 302 as shown in FIG. The compression section 302 is also called a shade section or the like. Compressed portion 302 is formed continuously with the lower end portion of filter portion 300 . The compression portion 302 is coaxial with the filter portion 300 , formed in a cylindrical shape with a diameter larger than that of the filter portion 300 , and expanded stepwise to the filter portion 300 . The compressing portion 302 serves as a partitioning portion that roughly partitions the inside of the first member 2 into the first separating portion 5 and the first stacking portion 7 vertically. In the assembled state of the dust collector 1 , the compression section 302 faces the bottom section 20 which is the lower portion of the first member 2 in the vertical direction and is separated upward from the bottom section 20 . The compression part 302 has a lidded cylindrical shape with an open bottom. In the illustrated example, the compression portion 302 has a compression opening 3020 in the middle of its upper end that communicates with the interior of the filter portion 300 . The compression opening 3020 is covered with a filter 3021 for compressing at least part of the coarse dust D1 accumulated in the first accumulation section 7 into the compression section 302 .

The member body portion 31 functions as a cover portion for the first member 2 and the third member 4 or a cover portion for the first stacking portion 7 and the second stacking portion 8 . The member body portion 31 is formed in a cylindrical shape coaxial with the insertion portion 30 . The diameter dimension of the member main body portion 31 is set to be equal to the maximum diameter dimension of the first member 2 or slightly larger than the maximum diameter dimension of the first member 2 .

In the present embodiment, the member body portion 31 has a bottom surface portion 310 formed continuously with the upper end portion of the insertion portion 30, as shown in FIG. The bottom surface portion 310 is formed in a circular plate shape and extends like a flange outward from the entire periphery of the upper end portion of the insertion portion 30 . A cylindrical side surface portion 311 rising upward from the bottom surface portion 310 is formed at a position near the outer edge of the bottom surface portion 310 , and a flange portion 312 extends further outward from the entire circumference of the upper end portion of the side surface portion 311 . ing. A seal portion 313 is arranged below the flange portion 312 . The seal portion 313 has an annular shape that extends along the entire circumference of the flange portion 312, and is pressed against the third member 4 in the assembled state of the dust collector 1, so that the second member 3 and the third member 4, or the second stacking portion 8 and the outside of the third member 4 are airtightly sealed. The seal portion 313 is made of, for example, elastic elastomer or silicone rubber.

Further, the member body portion 31 has a cover portion 314 outside the flange portion 312 . The cover portion 314 constitutes the outer shell of the member main body portion 31 and the upper end portion side outer shell of the dust collector 1 . The cover portion 314 is formed in a cylindrical shape. The cover portion 314 has an upper end portion that extends above the flange portion 312 .

Furthermore, as shown in FIGS. 1 and 7 , the member body portion 31 has a top surface portion 315 at a position near the upper end portion of the cover portion 314 . The top surface portion 315 covers the upper end portion side of the cover portion 314 . The top surface portion 315 constitutes the upper end portion of the dust collector 1 . The top surface portion 315 is formed in a circular shape. A projecting portion 3150 is formed on the top surface portion 315 . The projecting portion 3150 is an annular rib positioned along the vicinity of the outer edge of the top surface portion 315 . A space portion on the downstream side of the dust collector 1 is surrounded by the upper surface of the top surface portion 315 and the projection portion 3150 .

In addition, as shown in FIG. 1, the member main body 31 has a space surrounded by the bottom surface 310, the cover 314 and the top surface 315, that is, the second separation section 6 is formed inside the member main body 31. A cylindrical portion 316 is arranged. That is, in the assembled state of the dust collector 1 , the second separation section 6 is positioned above the first separation section 5 . In this embodiment, a plurality of tubular portions 316 are arranged so as to surround a predetermined reference line C. As shown in FIG. The predetermined reference line C is, for example, the central axis of the second member 3 or the cover portion 314, the central axis of the first member 2 and/or the central axis of the first separating portion 5 and/or the central axis of the dust collector 1. also match. That is, the reference line C is in the same direction as the central axis of the first separating portion 5 . The same direction is not limited to exactly the same direction, but includes substantially the same direction within the range of tolerance and error, and substantially the same direction. A space inside the member main body portion 31 surrounded by the plurality of cylindrical portions 316 forms an air passage portion 317 that communicates with a space inside the insertion portion 30 . The air passage portion 317 functions as a part of the communication portion that communicates the first separation portion 5 and the second separation portion 6 together with the space inside the insertion portion 30 . The cylindrical portions 316 are arranged in an annular shape centered on the reference line C, and are preferably equiangularly or substantially equiangularly spaced apart in the circumferential direction.

The cylindrical portion 316 is also called a separation cylinder or the like. The tubular portion 316 is formed in a tubular shape, preferably in a cylindrical shape. In the illustrated example, the cylindrical portion 316 is formed in the shape of a truncated cone or a truncated cone with a smaller diameter at the lower end and a larger diameter at the upper end. That is, the tubular portion 316 has a cross-sectional area at its upper end larger than that at its lower end. In this embodiment, the cross-sectional area of the cylindrical portion 316 is formed so as to gradually increase from the lower end to the upper end at a constant or substantially constant rate of increase. Therefore, the outer peripheral surface and the inner peripheral surface of the tubular portion 316 are linear on the side of the reference line C and the side opposite thereto when viewed in a cross section including the central axis L1. Here, the cross-sectional area of the cylindrical portion 316 refers to the cross-sectional area in the direction perpendicular to the central axis L1 of the cylindrical portion 316 inside the cylindrical portion 316 .

As shown in FIG. 5 , an introduction opening 3160 is formed in the tubular portion 316 . The introduction opening 3160 is an opening through which the dust-containing air that has passed through the first separation section 5 is introduced into the second separation section 6 . The introduction opening 3160 is a distribution opening that distributes the air from the air passage portion 317 into each cylindrical portion 316 . The introduction opening 3160 is positioned most upstream of the airflow in the second separation section 6 . The introduction opening 3160 is formed to introduce dust-containing air in a tangential direction to the inner peripheral surface of the cylindrical portion 316 . The introduction opening 3160 is located near the upper end of the cylindrical portion 316 . The introduction opening 3160 is close to the top surface portion 315 . In this embodiment, the cross-sectional area of the tubular portion 316 is constant at the position of the upper end portion of the tubular portion 316 including the introduction opening 3160 .

Further, the cylindrical portion 316 discharges dust separated inside, that is, fine dust from the lower end portion. That is, the lower end portion of the cylindrical portion 316 serves as a dust discharge port 3161 for discharging fine dust to the second accumulation portion 8 . Since the lower end portion of cylindrical portion 316 is inserted from above into opening 3100 opened in bottom surface portion 310 , dust outlet 3161 is exposed at the bottom of bottom surface portion 310 . The opening 3100 is formed outside the upper end of the insertion portion 30 . The dust outlet 3161 is located above the second stacking section 8 in the assembled state of the dust collector 1 shown in FIGS. 4 and 6 . That is, the projection range of the dust discharge port 3161 in the vertical direction is located at a position where at least a part thereof overlaps with the second accumulation portion 8 . Also, in the illustrated example, the dust discharge port 3161 is located above the inclined portion 3012 located in the connection portion 301 . The projection range of the dust outlet 3161 in the vertical direction may overlap with the tip of the inclined portion 3012 , but is preferably positioned so as not to overlap with the inclined portion 3012 .

Further, the cylindrical portion 316 discharges clean air, which is air from which fine dust has been separated, from the upper end portion. That is, as shown in FIGS. 5 and 6, an exhaust port 3162 for discharging clean air is formed inside the upper end portion of the tubular portion 316 . The exhaust port 3162 is positioned at the most downstream of the airflow in the dust collector 1 and the second separation section 6 . The exhaust port 3162 is opened in the top surface portion 315 . The exhaust port 3162 is formed as an upper end portion of an exhaust tube portion 3163 arranged coaxially with the tubular portion 316 . The exhaust tube portion 3163 is formed in a tubular shape, preferably a cylindrical shape. In the illustrated example, the exhaust pipe portion 3163 is formed in a truncated cone shape or a truncated cone shape with a small diameter at the lower end and a large diameter at the upper end. That is, the exhaust pipe portion 3163 has a larger cross-sectional area at the upper end, which is the downstream end, than at the lower end, which is the upstream end. In this embodiment, the cross-sectional area of the exhaust cylinder portion 3163 is formed so as to gradually increase from the lower end portion to the upper end portion at a constant or substantially constant rate of increase. Therefore, the outer peripheral surface and the inner peripheral surface of the exhaust cylinder portion 3163 are linear on the side of the reference line C and on the side opposite thereto when viewed in a cross section including the central axis L2. Here, the cross-sectional area of the exhaust tube portion 3163 refers to the cross-sectional area in the direction orthogonal to the central axis of the dust collector 1 or the reference line C inside the exhaust tube portion 3163 .

In addition, on the downstream side of the exhaust port 3162, a filter or the like is arranged for collecting fine dust when a very small amount of fine dust remains in the air discharged from the exhaust port 3162 of the second separation unit 6. may be

Further, the exhaust tube portion 3163 protrudes downward from the lower surface of the top surface portion 315 . A lower end portion of the exhaust cylinder portion 3163 extends below the introduction opening portion 3160 . In addition, the upper end portion of the exhaust cylinder portion 3163 is above the introduction opening portion 3160 and is flush with the upper surface of the top surface portion 315 . Therefore, the downstream end of the exhaust tube portion 3163 does not protrude above the top surface portion 315 which is the space portion on the downstream side of the second separation portion 6 and the dust collector 1 .

In this embodiment, as shown in FIGS. 1 and 5, the cylindrical portion 316 is inclined so that the center of the upper end is closer to the reference line C than the center of the lower end. That is, the central axis L1 of the tubular portion 316 is inclined so as to gradually approach the reference line C from the lower end to the upper end. In this embodiment, the exhaust cylinder portion 3163 is also inclined in the same manner as the tubular portion 316, and the central axis L1 of the tubular portion 316 passes through the center of the lower end portion, which is the upstream end portion of the exhaust cylinder portion 3163. , the central axis L1 of the cylindrical portion 316 and the central axis L2 of the exhaust cylinder portion 3163 are aligned. The center of the upper end of cylindrical portion 316 is the center of exhaust port 3162 , and the center of the lower end is the center of dust discharge port 3161 . That is, the center of the dust outlet 3161 is located farther from the central axis or the reference line C of the dust collector 1 than the center of the air outlet 3162 in the direction perpendicular to the central axis or the reference line C. Preferably, the inclination of the cylindrical portion 316 and the exhaust pipe portion 3163 is such that the outer peripheral surface of the position close to the cover portion 314, that is, the position farthest from the reference line C is parallel to the reference line C and in the vertical direction. It is set so that the air duct portion 317 side, which is on the reference line C side, is inclined with respect to the reference line C. Therefore, the air passage portion 317 is formed so as to be gradually reduced from the lower end, which is the upstream end, to the upper end, which is the downstream end.

Preferably, the cylindrical portion 316 and the exhaust pipe portion 3163 are each formed so that the cross section orthogonal to their central axes L1 and L2 is circular. Therefore, in this embodiment, the dust outlet 3161 and the air outlet 3162 each have an elliptical shape when viewed from above and below.

Furthermore, as shown in FIG. 6, in the present embodiment, the diameter DI of the imaginary circumscribed circle that circumscribes the plurality of cylindrical portions 316 is equal to or less than the maximum outer diameter of the first separating portion 5 or the first accumulating portion 7. is set. The imaginary circumscribed circle refers to the largest circle among the circles centered on the reference line C and circumscribing the cross sections of the plurality of cylindrical portions 316 on a plane perpendicular to the reference line C. As shown in FIG. In the illustrated example, the inclination of the cylindrical portion 316 is such that the outer peripheral surface of the position close to the cover portion 314, that is, the position farthest from the reference line C is parallel to the reference line C and along the vertical direction. Therefore, the virtual circumscribed circle is a circle that circumscribes the position farthest from the reference line C in the tubular portion 316 . In this embodiment, the diameter DI is equal to or less than the diameter of the upper end portion, which is the maximum outer diameter of the side wall portion 21 of the first member 2 .

Further, as shown in FIGS. 1 and 6, the second member 3 is provided with a mounting member which is a separation body locking means for detachably mounting the second member 3 to the first member 2 or the third member 4 . A portion 318 is provided. The attachment portion 318 may have any configuration, but in this embodiment, the attachment portion 318 is configured to engage the second member 3 with the first member 2 across the third member 4 in the vertical direction. It is organized as a part. In the illustrated example, the mounting portion 318 has a vertically elongated operating portion 3180 . The upper end portion side of the operation portion 3180 is held against the outer surface of the cover portion 314 in a state of being biased outwardly of the second member 3 or the cover portion 314 by a biasing means 3181 such as a coil spring. Further, the lower end portion side of the operating portion 3180 extends downward from the lower end portion of the cover portion 314 . A locking claw portion 31800 protrudes inward from the lower end portion of the operating portion 3180 . Then, the locking claw portion 31800 is caught by the locking receiving portion 26 formed near the upper end portion of the first member 2, for example, outside the member supporting portion 24, so that the second member 3 is secured by the mounting portion 318 to the first member. The member 2 is configured to be retained upward. Further, by pushing the operation portion 3180 toward the cover portion 314 against the biasing force of the biasing means 3181, the locking claw portion 31800 is separated from the locking receiving portion 26, thereby moving the first member of the second member 3. 2 is unlocked. In the present embodiment, the mounting portion 318 and the lock receiving portion 26 are provided in pairs, respectively, and are arranged at positions opposite to each other with respect to the central axis of the dust collector 1 .

In addition, in this embodiment, as shown in FIG. 7, the second member 3 is provided with a mounting portion 319 for mounting the dust collector 1 on an electrical device. The mounting portion 319 is formed on the cover portion 314 , and the upper end side of the mounting portion 319 protrudes upward from the upper end portion of the cover portion 314 . The mounting portion 319 is on the opposite side of the inlet 22 with respect to the central axis of the dust collector 1 . In the illustrated example, the upper end portion side of the mounting portion 319 serves as a rotation starting point for rotating the dust collector 1 when attaching and detaching the dust collector 1 to and from the electrical equipment.

The third member 4 shown in FIG. 1 is also called a dust collection body, a second dust collection cup, or the like. A second stacking portion 8 is arranged inside the third member 4 . The third member 4 is detachable from the end opening 25 of the first member 2 . The third member 4 is formed in a substantially cylindrical or annular shape. The central axis of the third member 4 coincides with the central axis of the dust collector 1 in the assembled state of the dust collector 1 . That is, the first member 2, the second member 3 and the third member 4 have central axes that coincide with each other when the dust collector 1 is assembled. In the illustrated example, the third member 4 has a shorter vertical length than the first member 2 and the second member 3 .

A receiving portion 40 that partitions the second stacking portion 8 is formed inside the third member 4 . The second stacking portion 8 inside the receiving portion 40 has an annular or arc shape, and is a pocket-shaped recessed portion with an open upper portion and a closed lower portion. In the assembled state of the dust collector 1 , the receiving portion 40 , that is, the upper opening of the second stacking portion 8 faces the dust discharge port 3161 at a position spaced downward from the second separating portion 6 .

As shown in FIG. 4 , the receiving portion 40 includes an annular bottom portion 400 , a cylindrical outer wall 401 rising from the outer edge side of the bottom portion 400 , and a cylindrical inner wall 402 rising from the inner edge portion of the bottom portion 400 . and have

The bottom portion 400 is a receiving surface for receiving fine dust D2. The upper surface of the bottom surface portion 400 constitutes a support surface for supporting the fine dust D2 of the second accumulation portion 8 . In the assembled state of the dust collector 1 , the bottom surface portion 400 is positioned inside the side wall portion 21 of the first member 2 and at least partially positioned within the vertical projection range of the dust outlet 3161 . Preferably, the bottom portion 400 is formed as an inclined surface that slopes downward toward the outside. In other words, the inner wall 402 side of the bottom portion 400 is higher than the outer wall 401 side. Therefore, the bottom surface portion 400 has a truncated cone surface shape or a truncated cone surface shape with a large diameter outer edge portion at the lower end portion and a small diameter inner edge portion at the upper end portion.

The outer wall 401 constitutes the outer wall of the second stacking section 8 . The outer wall 401 is a portion supported by the upper end portion of the first member 2 . The outer wall 401 is positioned along the inside of the member support portion 24 of the first member 2 . The outer diameter of the second stacking portion 8 defined by the inner peripheral surface of the outer wall 401 is set to be equal to or less than the maximum outer diameter of the first separating portion 5 or the first stacking portion 7 . In this embodiment, the outer wall 401 includes a first outer wall portion 4010 that extends along the entire circumference of the outer edge of the bottom surface portion 400, and a second outer wall portion 4011 that extends along the entire circumference of the upper portion of the first outer wall portion 4010. It is integrally formed. The second outer wall portion 4011 is formed to have a diameter larger than that of the first outer wall portion 4010 , and is enlarged in a stepped manner and connected to the first outer wall portion 4010 .

In the illustrated example, the first outer wall portion 4010 is positioned along the inner surface of the side wall portion 21 of the first member 2 in the assembled state of the dust collector 1 . Further, the first outer wall portion 4010 is formed so as to gradually curve inward toward the bottom surface portion 400 . In the present embodiment, the portion where the first outer wall portion 4010 and the bottom portion 400 are connected, that is, the portion where the outer wall 401 and the bottom portion 400 are connected is the lowest part of the second stacking portion 8, and in the illustrated example, the third It is sharply formed in a V shape in a cross-sectional view including the central axis of the member 4 .

The second outer wall portion 4011 extends upward from the upper end portion of the first outer wall portion 4010 , and the upper end portion is located above the upper end portion of the first member 2 in the assembled state of the dust collector 1 .

Further, as shown in FIG. 2, in this embodiment, the outer wall 401 is formed with a holding receiving portion 42 . The holding receiving portion 42 receives the holding portion 23 of the first member 2 and holds the third member 4 with respect to the first member 2 . The holding receiving portions 42 are set in the same number as the holding portions 23 and arranged intermittently in the circumferential direction. In the illustrated example, the holding receiving portion 42 is formed in a groove shape along the circumferential direction, and is configured so that the holding portion 23 is inserted in the circumferential direction. In the illustrated example, by rotating the third member 4 supported by the first member 2 at a position where the holding receiving portion 42 is shifted in the circumferential direction with respect to the holding portion 23, the holding receiving portion The third member 4 is held by the first member 2 by inserting the holding portion 23 into 42 . In this embodiment, the holding portion 23 and the holding receiving portion 42 constitute a dust collecting body locking means for locking the third member 4 to the first member 2 .

Furthermore, in the present embodiment, as shown in FIG. 6, the peripheral wall portion 43 is continuously formed over the entire circumference of the upper end portion of the outer wall 401 . The peripheral wall portion 43 is formed in a cylindrical shape, and is positioned between the member support portion 24 of the first member 2 and the cover portion 314 of the second member 3 in the vertical direction when the dust collector 1 is assembled. It constitutes part of the outer shell of the middle part in the vertical direction of the dust collector 1 . In the assembled state of the dust collector 1 , the side surface portion 311 of the second member 3 overlaps with the inside of the peripheral wall portion 43 , and the seal portion 313 is vertically pressed against the upper end portion of the peripheral wall portion 43 . For example, the peripheral wall portion 43 has an outer diameter substantially equal to the outer diameter of the member support portion 24 of the first member 2, and is enlarged stepwise to the upper end portion of the second outer wall portion 4011 of the outer wall 401 and continues. there is A seal portion 44 is arranged at a stepped portion on the outer side between the peripheral wall portion 43 and the second outer wall portion 4011 . The seal portion 44 has an annular shape that extends along the entire circumference of the peripheral wall portion 43 and the second outer wall portion 4011, and is vertically attached to the upper end portion of the member support portion 24 of the first member 2 when the dust collector 1 is assembled. It is pressed to airtightly seal the gap between the third member 4 and the first member 2 or the first stacking portion 7 and the outside of the first member 2 . The seal portion 44 is made of, for example, elastic elastomer or silicone rubber.

1 and 7, a restricting portion 45 for preventing the second member 3 and the third member 4 from coming off is formed on the outer side portion of the peripheral wall portion 43. As shown in FIGS. Although the restricting portion 45 may have any configuration, in the present embodiment, the restricting portion 45 is positioned on both circumferential sides of the operating portion 3180 of the mounting portion 318 in the assembled state of the dust collector 1 . Therefore, when the third member 4 is about to rotate in the circumferential direction relative to the second member 3 integrally held by the first member 2 in the assembled state of the dust collector 1, the restricting portion 45 and the operating portion 3180 interfere with each other to restrict rotation of the third member 4 with respect to the first member 2, thereby preventing the holding portion 23 inserted into the holding receiving portion 42 from coming off. That is, the restricting portion 45 restricts the operation portion 3180 of the mounting portion 318 of the second member 3 so that the third member 3 does not rotate with respect to the first member 2 when the dust collector 1 is assembled. used as a component. Therefore, unless the second member 3 is removed from the first member 2 in the assembled state of the dust collector 1, the third member 4 does not rotate with respect to the first member 2. The third member 4 is configured so as not to fall off together with the second member 3.

The inner wall 402 shown in FIGS. 1, 3 and 4 constitutes the inner wall of the second stacking section 8 . The inner wall 402 is a portion airtightly connected to the connecting portion 301 of the second member 3 . In the illustrated example, the sealing portion 3010 of the connecting portion 301 is pressed against the inner surface of the inner wall 402 , that is, the outside of the second stacking portion 8 in the assembled state of the dust collector 1 . The inner wall 402 is formed in a cylindrical shape having an axial direction in the vertical direction. The inner wall 402 surrounds the insertion opening 46 that communicates with the inside of the first member 2 in the assembled state of the dust collector 1 . The diameter of the insertion opening 46 , which is the inner diameter of the inner wall 402 , is larger than the maximum outer diameter of the insertion portion 30 of the first member 2 . Therefore, the insertion portion 30 of the second member 3 can be inserted into the first separation portion 5 inside the first member 2 through the insertion opening 46 in the assembled state of the dust collector 1 .

Further, in the present embodiment, a partition portion 403 is formed inside the receiving portion 40 to partition the second stacking portion 8 into a plurality of pieces in the circumferential direction. The partition portion 403 is a wall portion which is connected to the bottom surface portion 400 and formed in the radial direction across the inner wall 402 and the outer wall 401 .

In this embodiment, an electric vacuum cleaner 9 shown in FIG. 8 is taken as an example of an electric device using the dust collector 1 described above. FIG. 8 shows, as an example of the vacuum cleaner 9, a stick-type vacuum cleaner that is operated by gripping the body portion 90. As shown in FIG. In the electric vacuum cleaner 9 of the present embodiment, the assembled dust collector 1 is detachably attached to the body portion 90 by the attachment portion 319 of the second member 3 .

A suction source 91 such as an electric blower that generates a suction force by negative pressure is arranged in the body portion 90 . A connection port 900 is formed in the body portion 90 so as to communicate with the suction side of the suction source 91 , that is, the upstream side of the intake flow. The connection port 900 is airtightly connected to the exhaust port 3162 of the dust collector 1 attached to the main body 90 . Further, the body portion 90 is formed with a communication port 901 airtightly connected to the introduction port 22 of the dust collector 1 attached to the body portion 90 at a position away from the connection port 900 . . Further, the body portion 90 is formed with a suction port 902 that communicates with the communication port 901 . Therefore, the suction force of the suction source 91 acts on the suction port 902 via the communication port 901 , the dust collector 1 and the connection port 900 . The suction port 902 is connected to a straight pipe portion 92 such as an extension pipe which is an air passage, or a cleaning head 93 such as a suction port which is an air passage.

Further, the body portion 90 is formed with a body exhaust port 903 for exhausting the air sucked by the suction source 91 from the body portion 90 . Further, the main body portion 90 is formed with a grip portion 904 for a user to grip and perform cleaning operation. A setting means 94 such as a switch for setting the operation of the suction source 91 is arranged on the grip portion 904 . Further, the body portion 90 is provided with a power supply portion 95 that serves as a driving source for the suction source 91 and the like, and a control portion 96 that controls the operation of the suction source 91 in accordance with the setting by the setting means 94, and the like. The power supply unit 95 is preferably a battery such as a secondary battery in order to make the electric vacuum cleaner 9 cordless.

In the illustrated example, the body portion 90 is formed in a longitudinal shape, a suction port 902 is positioned at one end in the longitudinal direction, and a body exhaust port 903, a grip portion 904, and a power supply portion are located at the other end in the longitudinal direction. 95 are positioned, and the dust collector 1 is mounted on the main body 90 so that it is positioned between them along the longitudinal direction of the main body 90 .

The vacuum cleaner 9 is not limited to this, and may be a floor traveling type, a canister type, an upright type, a self-propelled cleaning robot, or the like. Also, the dust collector 1 may be used in electrical equipment such as a charging device for a self-propelled cleaning robot or a dust station.

Next, the operation of one embodiment will be described.

When assembling the dust collector 1 , first, the third member 4 is attached to the end opening 25 of the first member 2 . In the present embodiment, the third member 4 is placed on the member supporting portion 24 of the first member 2 and rotated in the circumferential direction so that the holding portion 23 is inserted into the holding receiving portion 42, whereby the first member 2 is moved. fixed to In this state, the seal portion 44 of the third member 4 is pressed against the upper end portion of the first member 2 . Next, the insertion portion 30 of the second member 3 is inserted into the insertion opening 46 of the third member 4 , and the second member 3 is locked to the first member 2 by the mounting portion 318 . In this state, the seal portion 3010 of the connecting portion 301 is pressed against the inner wall 402 surrounding the insertion opening 46 .

When the dust collector 1 assembled in this way is attached to the main body 90, the introduction port 22 of the dust collector 1 is airtightly connected to the communication port 901 of the main body 90, and the exhaust port 3162 of the dust collector 1 is connected. It is airtightly connected to the connection port 900 of the main body portion 90 . Therefore, an air passage extending from the suction source 91 to the dust collector 1 and the suction port 902 is formed.

In the electric vacuum cleaner 9, when the operation of the suction source 91 is set by the user holding the grip portion 904 by operating the setting means 94, the control portion 96 controls the suction source 91 according to the setting, and the negative pressure is increased. Occur. The user places the cleaning head 93 on a portion to be cleaned such as a floor surface in the air passage body connected to the suction port 902, and moves the entire electric vacuum cleaner 9 back and forth with the grip portion 904 to apply negative pressure. is used to suck dust together with air from the air passage body such as the cleaning head 93 and the straight tube portion 92. - 特許庁

The dust-containing air sucked from the cleaning head 93 or the like is introduced from the suction port 902 to the first separation section 5 of the dust collector 1 through the introduction port 22 via the communication port 901 . The introduced dust-containing air swirls along the inner peripheral surface of the side wall portion 21 of the first member 2, as shown in FIG. Due to this turning, coarse dust D<b>1 , which is particularly heavy dust among the dust, is centrifuged in the first separation section 5 . The separated coarse dust D1 falls along the inner peripheral surface of the side wall portion 21 and is accumulated in the first accumulation portion 7 located in the lower part inside the first member 2 .

In the present embodiment, as schematically shown by arrows in FIG. 6, the dust-laden air swirls to the lower portion of the compression portion 302 and is sucked from the lower portion of the compression portion 302 into the compression opening 3020, whereby coarse dust D1 is compressed into the bottom portion 20 of the first member 2 or the lower portion of the filter 3021 inside the compressed portion 302 .

Part of the dust-laden air swirling in the first separation section 5 passes through the ventilation port 3000 of the filter section 300 located at the center of the swirl, and part of the dust is collected by the filter 3001 at that time. Furthermore, the dust-laden air that has flowed out of the first separation section 5 through the ventilation port 3000 and the compression opening 3020 passes upward through the air passage section 317 and forms the second separation section 6 from the introduction opening 3160. Distributed inside each tubular portion 316 .

The dust-laden air introduced into the cylindrical portion 316 from the introduction opening 3160 swirls along the inner peripheral surface of the cylindrical portion 316 . Due to this turning, the fine dust D2, which is light dust remaining in the dust-containing air, is centrifuged in the second separation section 6 and falls along the inner peripheral surface of the cylindrical section 316, and is dropped at the lower end of the cylindrical section 316. The dust is discharged from the dust outlet 3161 to the outside of the second separating section 6 or the cylindrical section 316, and is dropped and accumulated in the second accumulation section 8 defined inside the receiving section 40 located below the dust outlet 3161. . In this embodiment, the fine dust D2 that has fallen is guided into the second accumulation section 8 along the slope of the slope 3012 located below the dust outlet 3161 .

The air swirling in the tubular portion 316 of the second separation portion 6 becomes clean air after the fine dust D2 is separated, and passes through the second separation portion 6 and the collector through the exhaust pipe portion 3163 located at the center of the swirl through the exhaust port 3162. It is discharged from the dust device 1.

The clean air discharged from the dust collector 1 is sucked into the suction source 91 shown in FIG.

When the cleaning is finished and the user operates the setting means 94 to set stop of the suction source 91 , the control section 96 stops the suction source 91 . The user removes the dust collector 1 from the main body 90 as necessary.

Then, in the removed dust collector 1 , first, the second member 3 is separated from the first member 2 and the third member 4 in a state in which the second member 3 is released from the first member 2 by pressing the attachment portion 318 . When the insertion portion 30 is pulled out from the first member 2 and removed from the first member 2, the third member 4 remains at the upper end portion of the first member 2 as shown in FIGS. In this state, the upper portions of the receiving portion 40 and the second stacking portion 8 are opened and exposed. That is, by moving the second member 3 at least with respect to the first member 2 and the third member 4, the second separating section 6 is separated and the second stacking section 8 is opened. In addition, separation of the second separation section 6 means that the first separation section 5, the first accumulation section 7, the second accumulation section are separated by moving or rotating the second member 3 constituting the second separation section 6. 8, changing the relative position or relative posture with at least one of the first member 2 and the third member 4, and/or changing the second member 3 that constitutes the second separation part 6 to the first member 2 and/or Separation by detachment with respect to the third member 4, etc. are also included.

Thus, in the present embodiment, the second member 3 is made separable from the first member 2 and the third member 4, so that the receiving portion 40 of the third member 4 can be configured by removing the second member 3. The second accumulation part 8 is opened, and the second accumulation part 8 maintains the concave shape even in the open state, so that the fine dust D2 accumulated in the second accumulation part 8 is removed from the second accumulation part 8 by removing the second member 3. When the part 8 is opened, it is difficult to spill from the second stacking part 8 to the outside of the dust collector 1. - 特許庁In addition, since the second stacking portion 8 is located above the first separating portion 5 together with the second separating portion 6, for example, the second stacking portion is located below the first separating portion. The shape of the second stacking portion 8 is less likely to be affected by the structures of the first separation portion 5 and the first stacking portion 7 compared to the structure formed in the central portion of the stacking portion, and the second stacking portion 8 is formed elongated. Therefore, the fine dust D2 is less likely to adhere to the inner surface of the second stacking portion 8 and clog the second stacking portion 8, or to remain at the time of disposal. .

Further, since the connection portion 301 of the second member 3 is set outside the inner wall 402 of the receiving portion 40, the second member 3 is moved, rotated, or rotated with respect to the first member 2 and the third member 4. Even if fine dust D2 adhering to the connecting portion 301 spills out of the connecting portion 301 when it is removed or otherwise moved, the fine dust D2 falls to the second stacking portion 8 that maintains the concave shape. Since fine dust D2 is accumulated in the accumulation unit 8, it is difficult for the fine dust D2 to spill out of the dust collector 1. - 特許庁

Furthermore, the fine dust D2 can be held independently even when the second stacking section 8 is open, and the maintainability of the dust collector 1 is improved.

Even if the fine dust D2 discharged from the dust discharge port 3161 at the lower end of the cylindrical portion 316 constituting the second separating portion 6 is placed on the inclined portion 3012, the inclined portion 3012 is inclined toward the second stacking portion 8 side. Since the fine dust D2 can be guided to the second stacking portion 8 by doing so, the fine dust D2 is less likely to accumulate on the upper portion of the inclined portion 3012 .

By rotating the third member 4 in the circumferential direction with respect to the first member 2 , the third member 4 is moved upward from the first member 2 at a position where the holding portion 23 is relatively pulled out from the holding receiving portion 42 . The third member 4 is removed from the first member 2 as shown in FIG. By removing the third member 4, the end opening 25 of the first member 2 is opened, and the first separating portion 5 and the first stacking portion 7 are opened.

The coarse dust D1 is discarded from the first accumulation portion 7 of the first member 2 through the end opening 25 by turning the first member 2 upside down at a predetermined position such as a trash can. The fine dust D2 is discarded from the second stacking portion 8 of the third member 4 by turning the third member 4 removed from the first member 2 upside down at a predetermined position such as a trash can.

Thus, in this embodiment, the first member 2, the third member 4, and the second member 3 are arranged in this order from bottom to top, and when the second member 3 is separated from the first member 2, the first member 2 Since the third member 4 can be separated from the third member 4, the second member 3 is first separated at the time of dust disposal, and the first member 1 that collects the coarse dust D1 in the first accumulation section 7 and the fine dust D2 are collected in the second accumulation section. It is hygienic because the third member 4 accumulated in 8 remains in an integrated state, and coarse dust D1 and fine dust D2 are individually accumulated. By bringing the dust collector 1 together to a dust disposal site and separating it there, the coarse dust D1 and the fine dust D2 can be disposed of separately, so that the dust can be disposed of easily and hygienically. can. In addition, it is easy to care for each member, and maintainability is improved.

In particular, by forming the second stacking portion 8 inside the side wall portion 21 which is the outer wall of the first member 2 constituting the outer wall of the first stacking portion 7 or the first separating portion 5, the first stacking portion Since the outer diameter of the first member 2, which is the outer wall of the portion 7 and the first separation portion 5, can be reduced, the first member 2 can be slimmed down to make the entire dust collector 1 compact.

By including the dust collector 1, the electric vacuum cleaner 9 can be made lighter and more compact. In particular, when the vacuum cleaner 9 is a stick-type vacuum cleaner, the dust collector 1 can be made compact and slim, so that the entire structure can be slimmed down. The load on the hand of the user who holds it is reduced, the cleaning operation is facilitated, and usability is improved.

Furthermore, since the upper end portion of the central axis L2 of the exhaust tube portion 3163 is inclined toward the reference line C side, the exhaust from the exhaust port 3162 of each tubular portion 316 is concentrated on the reference line C side and the suction source 91 Since it can be sucked all at once, the suction efficiency is good. In particular, in an example in which the central axis of the dust collector 1 and the central axis of the suction source 91 are arranged to coincide with the reference line C, the exhaust from each exhaust port 3162 is directly directed to the suction source 91, so that the suction is more effective. Efficient.

In one embodiment, an example in which the second member 2 is attached to the first member 2 as the attachment portion 318 is shown, but the attachment portion 318 is used to attach the second member 3 to the third member 4. In this case, by removing the third member 4 from the first member 2, the second member 3 and the third member 4 can be integrally removed from the first member 2, and the mounting portion Since the second accumulation part 8 is opened by releasing the assembly according to 318 and at least moving, preferably removing, one of the second member 3 and the third member 4 relative to the other, as in one embodiment, The receiving portion 40 allows the second stacking portion 8 to maintain its concave shape. In this manner, the third member 4 is removed from the first member 2 integrally with the second member 3, and the third member 4 is removed from the second member 3, thereby opening the second stacking portion 8. However, the fine dust D2 accumulated in the second accumulation portion 8 is less likely to spill out when the second accumulation portion 8 is opened, and the second accumulation portion 8 is less likely to be clogged with the fine dust D2. be able to.

Further, an example in which the first member 2 constitutes the first separating section 5 and the first stacking section 7, the second member 3 constitutes the second separating section 6, and the third member 4 constitutes the second stacking section 8. However, the first separating section 5, the second separating section 6, the first stacking section 7, and the second stacking section 8 may each be composed of a single member or a plurality of members.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention to these embodiments. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

REFERENCE SIGNS LIST 1 dust collector 2 first member that is a dust collection container 3 second member that is a separator 4 third member that is a dust collector 5 first separation section 6 second separation section 7 first accumulation section 8 second accumulation section 9 electric vacuum cleaner 30 insertion portion 40 receiving portion which is a concave portion 402 inner wall
3010 seal part

Claims (6)

a dust collection container having therein a first separation section for centrifugally separating dust from dust-containing air and a first accumulation section for collecting the dust separated by the first separation section;
a separation body having therein a second separation section for centrifugally separating dust from the air that has passed through the first separation section;
a dust collector having a concave portion forming a concave second collecting portion for collecting the dust separated by the second separation portion;
the dust collector is separable from the dust collection container and the separator;
The second stacking portion is annular or arc-shaped,
The concave portion has an inner wall forming an inner wall of the second stacking portion,
The separating body has an inserting portion having an outer diameter smaller than an inner diameter of the inner wall of the concave portion and is insertable into and removing from the first separating portion through the inner wall of the inner wall,
The inner wall extends in a direction in which the insertion portion is pulled out from the first separation portion.
A dust collector characterized by: The dust collection container, the dust collection body, and the separation body are arranged in this order,
the dust collection container and the separator are locked,
The dust collection container and the dust collection body are locked,
2. The dust collector according to claim 1, wherein when the separator separates from the dust container, the dust container and the dust collector can be separated. The dust collector according to claim 1, wherein the second stacking portion is opened by separating the separator, and maintains the concave shape even in the opened state. The dust collector according to claim 1, wherein the second stacking portion is located inside the outer wall of the dust container. 3. The inserting portion includes a sealing portion that is pressed against the inner wall in a radial direction in an assembled state in which the dust collecting container, the separating member, and the dust collecting member are integrally assembled. 2. The dust collector according to 1. A vacuum cleaner comprising the dust collector according to any one of claims 1 to 5.

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