JPWO2005037048A1 - Electric vacuum cleaner - Google Patents

Abstract

Provided is a vacuum cleaner capable of ensuring a large area of a lower mesh filter (34) while saving space. The coarse dust separated by the separation part (16) and passed through the substantially straight cylindrical separation main part (17) is separated by the coarse dust air passage (31) along with the suction air and the separation part (16). The suction air that has flowed into the coarse dust air passage (31) is placed in the partition wall (26) located between the fine dust passage that passes through the auxiliary opening (18) and the fine dust air passage (32) through which the suction air passes. A communication port (35) for extraction is formed along the coarse dust air passage (31), and a lower mesh filter (34) is provided at the communication port (35), so that the coarse dust air passage (31) is provided. The area of the lower mesh filter (34) can be easily secured while saving space without increasing the cross-sectional area or the size of the cleaner body (2).

Description

  The present invention relates to an electric vacuum cleaner including a separation unit that separates dust sucked together with air by driving an electric blower.

Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. In the cleaner body, a separating portion is provided which communicates with a body suction port formed in the cleaner body. This separation unit separates the dust sucked from the main body suction port together with the air by driving the electric blower according to the specific gravity or size. In addition, an opening that communicates with an air passage that communicates with the suction side of the electric blower is provided on the downstream side of the separation unit, and a filter unit is provided in the opening. And the dust sucked together with the air through the main body suction port by driving the electric blower is separated according to the specific gravity or the size at the separation part, and a part of the separated dust together with the air opens the opening part. When passing, air collected by the filter unit and collected dust flows into the electric blower (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 47-9805 (page 1-2, Fig. 1)

  In vacuum cleaners such as those described above, which collect coarse dust and fine dust as in the case of inertia separation, the filter part is likely to be clogged by fine dust, and it is necessary to secure a wide filter area. is there.

  However, in order to increase the filter area, it is necessary to increase the cross-sectional area of the separation part or the air passage, and it is not easy to ensure a wide filter area without increasing the size of the cleaner body. Has a point.

  This invention is made | formed in view of such a point, and it aims at providing the vacuum cleaner which can ensure the area of the area of a 1st filter, saving space.

  The present invention provides a separation unit that separates dust sucked together with air from an air inlet by driving an electric blower into coarse dust and fine dust, a coarse dust air passage through which coarse dust flows together with a part of the air, and the coarse dust. A fine dust passage that is provided in parallel with the dust air passage and into which fine dust flows together with the remaining air, a bulkhead located between the coarse dust air passage and the fine dust air passage, and a coarse dust passage A first filter provided in an opening portion opened in the partition along the air passage and a second filter provided on the downstream side of the fine dust air passage are provided.

  Further, the present invention includes a separation main body portion that is formed in a substantially cylindrical shape and communicates with the air intake port, and an auxiliary opening that is formed around the separation main body portion. A separation part that separates the sucked dust into coarse dust and fine dust, a coarse dust air passage through which coarse dust flows together with a part of the air, and the remaining air And a fine dust air passage through which fine dust flows.

  Furthermore, the present invention includes a separation unit that separates dust sucked together with air from the air inlet by driving of the electric blower into coarse dust and fine dust, a main communication path through which coarse dust flows together with a part of the air, An auxiliary air passage that is provided in parallel with the communication passage and into which fine dust flows together with the remaining air, a partition wall that is located between the main communication passage and the auxiliary air passage, and is opened to the partition wall along the main communication passage A first filter provided in the opening and a second filter provided on the downstream side of the main communication path are provided.

  According to the present invention, the coarse dust separated by the separation part is located between the coarse dust air passage into which a part of the air flows and the fine dust air passage into which the fine dust flows together with the remaining air. By opening an opening in the partition wall along the coarse dust air passage and providing the first filter in the opening, it is possible to secure a large area of the first filter while saving space.

  In addition, according to the present invention, the coarse dust air passage through which the coarse dust that has passed through the separation main body formed in a substantially cylindrical shape and communicated with the intake port flows together with a part of the air, and fine dust together with the remaining air. The separation part is equipped with an inflowing fine dust air passage, so that the separation part can be reduced in size, and along the coarse dust air passage in the partition located between the coarse dust air passage and the fine dust air passage. By providing the first filter in the opened opening, it is possible to secure a large area of the first filter while saving space.

  Further, according to the present invention, the partition wall positioned between the main communication passage through which the coarse dust separated by the separation portion flows together with a part of the air and the auxiliary air passage through which the fine dust flows together with the remaining air is provided. By opening the opening along the main communication path and providing the first filter in this opening, the area of the first filter can be secured while saving space.

It is a longitudinal cross-sectional view which shows the vacuum cleaner of one embodiment of this invention. It is a front view which shows a part of vacuum cleaner same as the above. It is a perspective view which shows a vacuum cleaner same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner 2 Vacuum cleaner main body 3 Electric blower 14 Intake port 15 Exhaust port 16 Separation part 17 Separation main body part 18 Auxiliary opening 26 Bulkhead 31 Coarse dust passage (main communication path)
32 Fine air duct (auxiliary air duct)
34 Lower mesh filter as the first filter 35 Communication port as the opening 38 Pleated filter as the second filter

  Hereinafter, the structure of the vacuum cleaner of one embodiment of the present invention will be described with reference to FIGS. 1 to 3.

  1 to 3, reference numeral 1 denotes an electric vacuum cleaner, and the electric vacuum cleaner 1 is a so-called upright type, that is, a stick type vacuum cleaner. The vacuum cleaner 1 includes a vacuum cleaner body 2 that is elongated in the vertical direction. The vacuum cleaner body 2 houses an electric blower 3 on the lower side, and the upper side of the electric blower 3. In addition, a dust collecting section 4 is provided. Further, the vacuum cleaner main body 2 has a hose body 5 communicating with the upstream side of the dust collecting part 4, that is, the suction side, connected to the upper part on the rear side. The connecting pipe part 6, the grip pipe part 7 and the extension pipe 8 are connected in series. Furthermore, the distal end portion on the suction side of the extension pipe 8 is inserted into the upper end portion which is one end portion of the cylindrical attachment portion 9 provided at the lower rear side of the cleaner body 2. And the lower end part which is the other end part of the attaching part 9 is inserted and connected to the downstream side of the floor brush 11 as the suction port body, that is, the base end part which is the exhaust side.

  The vacuum cleaner body 2 is provided with an arc-shaped handle portion 12 at the upper end portion that enables the vacuum cleaner 1 to be carried. In addition, an extension pipe fixing portion 13 for detachably fixing the extension pipe 8 is provided on the upper portion on the rear side of the cleaner body 2. Furthermore, a plurality of long-hole exhaust holes (not shown) communicating with the exhaust side of the electric blower 3 are formed in the rear part of the cleaner body 2. The vacuum cleaner main body 2 is formed with a substantially round hole-like air inlet 14 at a position facing the rear part of the dust collecting part 4. The vacuum cleaner body 2 has a plurality of exhaust ports 15 formed below the intake ports 14.

  The air inlet 14 communicates with the floor brush 11, and air containing dust sucked from the floor brush 11 by driving of the electric blower 3 passes therethrough. A separation unit 16 is provided on the exhaust side of the intake port 14.

  The separation unit 16 is relatively large in specific gravity or size using the difference in inertia depending on the specific gravity or the size of the dust sucked from the floor brush 11 by the drive of the electric blower 3 and passing through the air inlet 14. It separates into coarse dust and fine dust having a specific gravity smaller than that of the coarse dust or smaller in size, and includes a substantially linear cylindrical separation main body 17 provided coaxially with the air inlet 14. The separation main body portion 17 projects into the dust collecting portion 4 and is reduced in diameter from the intake port 14 side toward the front side of the cleaner body 2, that is, from the intake port 14 side to the exhaust port 15 side. In addition, a plurality of auxiliary openings 18 penetrating the separation main body portion 17 in the radial direction are formed around the separation main body portion 17.

  The auxiliary openings 18 are spaced from each other at substantially equal intervals in the circumferential direction of the separation main body portion 17. Further, a mesh filter 18 a is attached to these auxiliary openings 18 so as to cover these auxiliary openings 18.

  The exhaust ports 15 are provided in a long hole shape along the vertical direction of the cleaner body 2, and are spaced apart from each other at substantially equal intervals in the left-right direction that is the width direction of the cleaner body 2. Further, a communication air passage 19 that communicates with the suction side of the electric blower 3 is provided on the exhaust side of the exhaust port 15.

  As shown in FIG. 2, the intake port 14 and the exhaust port 15 are provided in substantially the same direction toward the separation unit 16, and face the rear part of the dust collection unit 4.

  The electric blower 3 is accommodated in the cleaner body 2 with the suction side facing upward. In addition, the electric blower 3 is airtightly connected to the dust collecting portion 4 on the suction side via the exhaust port 15. Further, the electric blower 3 is supplied from an external power source (not shown) through a power cord (not shown) drawn and wound around a cord reel 22 rotatably provided at the rear portion of the cleaner body 2. It is driven by electric power.

  The dust collector 4 is detachably provided to the cleaner body 2. In addition, as shown in FIG. 1, the dust collection unit 4 includes a hollow housing body 25, a partition wall 26 provided in the housing body 25, and an opening / closing lid that allows the housing body 25 to be opened and closed. 27.

  The housing body 25 communicates with the separator 16 and is partitioned by a partition wall 26 into a coarse dust air passage (main communication passage) 31 on the front side and a fine dust air passage (auxiliary air passage) 32 on the rear side. .

  The coarse dust air passage 31 communicates with the separation main body 17 downstream of the separation main body 17 via a vent 33 formed in the partition wall 26 so as to be coaxial with the separation main body 17 of the separation section 16. While being bent downward with respect to the axial direction, it is formed in a longitudinal shape along the vertical direction which is the longitudinal direction of the cleaner body 2. The coarse dust air passage 31 is an air passage through which coarse dust flows together with a part of the air sucked from the intake port 14, and has a dust collection function for mainly accommodating the coarse dust at the lower part. Further, the coarse dust air passage 31 is opened on the downstream side through a communication port 35 as an opening provided below the vent 33 of the partition wall 26 and provided with a lower mesh filter 34 as a first filter. The air passage 32 communicates with the air duct 32.

  Here, the lower mesh filter 34 is accommodated in the coarse dust air passage 31 from the communication port 35 for extracting the air that has flowed into the coarse dust air passage 31 to carry the coarse dust from the coarse dust air passage 31. This is to prevent the generated coarse dust from coming out.

  The communication port 35 is formed in a longitudinal shape along the coarse dust air passage 31.

  On the other hand, the fine dust air passage 32 communicates with the downstream side of the auxiliary opening 18 of the separation portion 16, and is elongated in the vertical direction in parallel with the coarse dust air passage 31 below the separation portion main body 17. Is formed. The fine dust air passage 32 has air that does not pass through the coarse dust air passage 31, which is the remaining portion of the air sucked from the intake port 14, together with fine dust that has passed through the mesh filter 18 a of the auxiliary opening 18. The filter body 36 which collects this fine dust is accommodated by the air path which passes. Further, an exhaust communication port 37 communicating with the exhaust port 15 is formed at the rear side of the lower portion of the fine dust air passage 32.

  The filter body 36 includes a pleated filter 38 as a second filter, and a frame 39 that holds the periphery of the pleated filter 38 and is detachable from the fine dust air passage 32.

  The pleated filter 38 is formed in a wave shape in the front-rear direction, and a fold is formed in the up-down direction, which is the direction along the fine dust air passage 32. The pleat filter 38 is disposed at a position corresponding to the lower mesh filter 34 of the communication port 35 at the rear side, that is, downstream side of the lower mesh filter 34 so as to be orthogonal to the air flow from the coarse dust air passage 31. Opposed to each other. Further, the pleated filter 38 is formed larger than the lower mesh filter 34 in a front view and has a size facing the entire communication port 35.

  The frame body 39 is formed in a rectangular frame shape, and is attached in the fine dust air passage 32 so that the upper side of the pleated filter 38 is inclined more forward than the lower side. Further, the frame 39 is provided with an inclined plate portion 41 that is inclined downward from the rear side to the front side below the pleat filter 38. The inclined plate portion 41 has a front end portion, which is a tip portion, located at the lower portion of the fine dust air passage 32 and is continuous with a fine dust accommodating portion 42 provided on the opening / closing lid portion 27. The fine dust accommodating portion 42 is a portion where fine dust collected by the pleated filter 38 falls and accommodates along the inclined plate portion 41, and is opened and closed by opening and closing the opening / closing lid portion 27.

  A dust drop means 43 is provided at the rear of the filter body 36 to remove fine dust collected by the pleat filter 38 from the pleat filter 38, that is, to remove dust. The dust dropping means 43 is driven to rotate by, for example, a motor (not shown) to vibrate the pleated filter 38, thereby dropping fine dust collected by the pleated filter 38 and dropping it into the fine dust containing portion 42. It is.

  Further, the exhaust communication port 37 faces the exhaust port 15 and communicates with these exhaust ports 15. The exhaust communication port 37 exhausts the suction air from the rear portion of the fine dust air passage 32 to the exhaust port 15. For this reason, the filter body 36 communicates with the suction side of the electric blower 3 through the exhaust communication port 37 and the exhaust port 15. Further, a lower filter (not shown) is attached to the exhaust communication port 37 so as to cover the entire exhaust communication port 37.

  Further, the partition wall 26 is located between the coarse dust air passage 31 and the fine dust air passage 32, has a surface direction along the left-right direction intersecting the front-rear direction of the vacuum cleaner 1, and extends in the up-down direction. It is formed in a longitudinal shape and is continuous from the upper end in the housing main body 25 to the opening / closing lid 27. Further, the communication port 35 provided in the partition wall 26 is spaced below the ventilation port 33 and has a longitudinal shape extending from a position above the center region in the vertical direction of the partition wall 26 to the vicinity of the lower end portion of the partition wall 26. Is open. The lower mesh filter 34 provided at the communication port 35 is disposed in a lattice shape over the entire communication port 35.

  The opening / closing lid 27 is provided at the rear part of the lower end of the housing body 25 so as to be rotatable in the vertical direction. Further, the opening / closing lid 27 is opened / closed with respect to the housing body 25 by operating a lid clamp (not shown).

  As shown in FIG. 3, the hose body 5 is provided in the shape of a long and narrow bellows with a flexible synthetic resin or the like, and is provided so as to be expandable and contractable in the axial direction.

  The connecting pipe portion 6 is formed in a cylindrical shape with a synthetic resin harder than the hose body 5, is provided coaxially with the hose body 5, and communicates with the distal end portion of the hose body 5. Further, the connecting pipe portion 6 is detachably connected to a proximal end portion on the exhaust side of the grip pipe portion 7.

  The grip tube portion 7 includes a substantially cylindrical main body portion 46 that communicates with a distal end portion that is the suction side of the connection tube portion 6 and a proximal end portion that is the exhaust side of the extension tube 8, and a radial direction from the main body portion 46. And a protruding gripping portion 47. The grip 47 protrudes from the outer surface on the distal end side of the main body 46 and is bent toward the proximal end of the main body 46. In addition, the grip portion 47 is provided with a plurality of setting buttons (not shown) for driving the electric blower 3 in a predetermined drive mode.

  The extension pipe 8 serves as an arm when the operator operates the vacuum cleaner 1 and is formed in an elongated cylindrical shape, that is, a longitudinal shape with a metal such as aluminum, for example. The extension pipe 8 communicates with the suction side of the electric blower 3 through the grip pipe part 7, the connection pipe part 6, the hose body 5 and the dust collecting part 4.

  And the packing 79 is attached to the attaching part 9, and the communication pipe 82 which is the front-end | tip part of the extension pipe 8 and the base end part of the floor brush 11 is detachably inserted from the upper and lower sides, respectively, and is connected airtightly.

  As shown in FIGS. 1 and 3, the floor brush 11 is installed on the floor surface as a surface to be cleaned and supports the vacuum cleaner 1, and the extension pipe 8 is inserted into the upper end portion of the attachment portion 9. Thus, it communicates with the distal end portion on the suction side of the extension pipe 8 through the attachment portion 9.

  Further, the floor brush 11 includes a hollow horizontally long case body 81 in which a suction port 81a is formed in the lower portion facing the floor surface. A cylindrical communication pipe 82 communicating with the suction port 81a is rotatably provided at the rear portion of the case body 81, and the communication pipe 82 is inserted into the lower end portion of the attachment portion 9 and is airtightly connected. .

  Here, the communication pipe 82 is detachable from the attachment portion 9 by a brush clamp 83 provided at the rear portion of the attachment portion 9. The communication pipe 82 is in airtight contact with the packing 79.

  Further, brush driven wheels 84 are rotatably provided on both sides of the communication pipe 82 of the floor brush 11. These brush driven wheels 84 allow the vacuum cleaner 1 to travel back and forth on the floor surface.

  Next, the cleaning operation according to the above embodiment will be described.

  During normal cleaning, with the extension tube 8 attached to the cleaner body 2, connect the power cord to an outlet (not shown), hold the grip portion 47 of the grip tube portion 7, and operate a predetermined setting button. Then, the electric blower 3 is driven.

  Then, the operator grips the grip portion 47 and runs the electric vacuum cleaner 1 back and forth, and sucks and cleans floor dust from the suction port 81a of the floor brush 11.

  For example, when cleaning a narrow place where the width of the floor brush 11 does not enter, such as a door rail, the extension pipe 8 is removed from the cleaner body 2 and dust is sucked from the tip of the extension pipe 8.

  Furthermore, when cleaning the desk top etc., the connection pipe part 6 is removed from the grip pipe part 7, and dust is sucked in from the front-end | tip part of this connection pipe part 6. FIG.

  The air sucked together with the dust becomes a suction wind, and this suction wind passes through the air inlet 14 and the air vent 33 via the hose body 5 and then flows into the separation portion 16.

  The suction air is narrowed down by the separation main body portion 17 to increase the flow velocity. Among the dust contained in this suction air, coarse dust having a relatively large specific gravity or relatively large size makes the separation main body portion 17 linear along with the suction air W1. The fine dust having a relatively small specific gravity or a small size is separated in the circumferential direction of the separation main body portion 17 and flows into the auxiliary opening 18. Part is collected by the mesh filter 18a, and fine dust that has passed through the mesh filter 18a flows into the fine dust air passage 32 together with the suction air W2.

  The coarse dust that has flowed into the coarse dust air passage 31 is collected when the suction air W <b> 1 that has flowed into the coarse dust air passage 31 passes through the lower mesh filter 34, and is stored in the coarse dust air passage 31. . Then, the suction air W <b> 1 in which the coarse dust is collected passes through the pleated filter 38, and then flows into the communication air passage 19 from the exhaust port 15 through the exhaust communication port 37, to the suction side of the electric blower 3. And flow.

  On the other hand, the fine dust flowing into the fine dust air passage 32 is collected by the pleated filter 38 when the suction air W2 flows through the pleated filter 38 along the vertical direction. Then, the suction air W <b> 2 in which the fine dust is collected flows from the exhaust port 15 to the communication air passage 19 through the exhaust communication port 37 and flows to the suction side of the electric blower 3.

  The suction air that has flowed into the electric blower 3 passes through the electric blower 3 to become exhaust air, and is exhausted from the exhaust hole to the outside of the cleaner body 2.

  Further, after the cleaning is finished, the dust removing means 43 is driven by a motor (not shown), and the fine dust collected by the pleated filter 38 is removed from the pleated filter 38 and is passed through the inclined plate portion 41. It is accommodated in the accommodating part 42.

  Further, the dust stored in each of the coarse dust channel 31 and the fine dust container 42 is removed from the cleaner body 2 with the electric blower 3 stopped, and the lid clamp is operated. By opening the open / close lid 27, the waste is disposed in a trash box (not shown) outside the dust collector 4.

  Thereafter, the dust collecting unit 4 is attached to the cleaner body 2 again for use.

  As described above, in the above-described embodiment, the coarse dust separated by the separating unit 16 passes along with the suction air W1 and the fine dust separated by the separating unit 16 and the remaining dust. In the partition wall 26 positioned between the fine dust air passage 32 through which the suction air W2 passes, a communication port 35 for extracting the suction air W1 flowing into the coarse dust air passage 31 from the coarse dust air passage 31 is roughly provided. A configuration is provided in which an opening is formed along the dust air passage 31, and a lower mesh filter 34 that prevents dust collected in the coarse dust air passage 31 from exiting the coarse dust air passage 31 is provided in the communication port 35. It was.

  As a result, for example, compared with the case where the lower mesh filter is formed along the direction intersecting the coarse dust air passage 31, the cross-sectional area of the coarse dust air passage 31 or the size of the cleaner body 2 is larger. The area of the lower mesh filter 34 can be easily secured while saving space without increasing the size.

  In particular, in the above-described embodiment, the separation part 16 includes the separation body part 17 having a substantially linear cylindrical shape and the auxiliary opening 18 formed around the separation body part 17, and dust contained in the suction air is removed. By separating straightly, for example, the separation unit 16 and the vacuum cleaner 1 can be further reduced in size as compared with the case of using a cyclone separation unit that rotates the suction air to centrifuge the dust.

  In addition, since the coarse dust air passage 31 has a dust collecting function for accommodating the passing dust, the cleaner main body 2 can be made smaller than when the dust collecting portion is provided separately from the coarse dust air passage 31.

  Further, the air passages 31 and 32 are arranged in parallel along the vertical direction, and the dust dust passage 31 has a dust collecting function at the lower portion, so that dust flowing into the air passages 31 and 32 falls by its own weight. It easily collects in the lower part of the housing main body 25, and the suction air and dust can be easily separated.

  Further, by providing the pleated filter 38 along the fine dust air passage 32 at a position corresponding to the lower mesh filter 34, the air passage resistance is increased by these filters 34 and 38, and the dust collecting performance can be improved. These filters 34 and 38 can be hardly clogged.

  Further, by forming the pleated filter 38 in a pleated shape formed with a fold along the fine dust air passage 32, the surface area of the pleated filter 38 through which the suction air W2 passes can be secured, and the dust collection efficiency can be improved.

  Furthermore, the seal packing when the dust collector 4 is attached to the cleaner body 2 by positioning the intake port 14 and the exhaust port 15 facing the rear portion of the dust collector 4 on the same side as the housing body 25. And the like only have to be provided at the rear part of the dust collection part 4, for example, the sealing performance can be improved as compared with the case where seal packing or the like is provided at both the front part and the rear part of the dust collection part 4.

  Then, the pleat filter 38 is inclined downward toward the front side, and an inclined plate portion 41 is provided below the pleat filter 38 so as to be continuous with the upper portion of the fine dust accommodating portion 42, thereby driving the dust dropping means 43. In this case, the fine dust removed from the pleated filter 38 can be reliably accommodated in the fine dust accommodating portion 42.

  In addition, by applying the dust collecting unit 4 to the upright type vacuum cleaner, the shape of the vacuum cleaner body 1 that is long in the vertical direction can be effectively used to prevent the vacuum cleaner body 1 from being enlarged. .

  In the above embodiment, the separation unit 16 is not limited to the above configuration as long as dust can be separated according to specific gravity or size.

  Similarly, the details of the vacuum cleaner 1 are not limited to the above configuration.

  The vacuum cleaner 1 can be used not only for a stick type but also for a so-called canister type.

  The present invention is suitably used for an upright type vacuum cleaner, for example.

Claims (8)

A vacuum cleaner body that houses an electric blower and has an intake port and an exhaust port;
A separation unit that separates dust sucked together with air from the intake port into coarse dust and fine dust by driving the electric blower;
Coarse dust air passage through which coarse dust flows with a part of the air,
A fine dust air passage that is provided in parallel to the coarse dust air passage and into which fine dust flows together with the remaining air,
A partition located between the coarse dust air passage and the fine dust air passage;
An opening that is opened in the partition wall along the coarse air passage;
A first filter provided in the opening;
A vacuum cleaner comprising: a second filter provided on the downstream side of the fine dust air passage. A vacuum cleaner body that houses an electric blower and has an intake port and an exhaust port;
Dust that is provided in a substantially cylindrical shape that communicates with the intake port and an auxiliary opening that is formed around the separation main unit, and is sucked together with air from the intake port by driving the electric blower Separating part for separating coarse dust and fine dust,
Coarse dust air passage through which coarse dust flows with a part of the air,
A fine dust air passage that is provided in parallel with the coarse dust air passage and into which fine dust flows together with the remaining air,
A partition located between the coarse dust air passage and the fine dust air passage;
An opening that is opened in the partition wall along the coarse air passage;
A first filter provided in the opening;
A vacuum cleaner comprising: a second filter provided on the downstream side of the fine dust air passage. The vacuum cleaner according to claim 1 or 2, wherein the coarse dust air passage has a dust collecting function of containing the passing dust. The air passage for coarse dust and the air passage for fine dust are formed in parallel along the vertical direction and below the separation portion,
The electric vacuum cleaner according to claim 3, wherein the coarse dust air passage has a dust collecting function below. The vacuum cleaner according to any one of claims 1 to 4, wherein the second filter is provided along the fine dust air passage at a position corresponding to the first filter. The vacuum cleaner according to any one of claims 1 to 5, wherein the second filter is a pleated filter in which a crease is formed along an air passage for fine dust. The vacuum cleaner body according to any one of claims 1 to 6, wherein the vacuum cleaner body is formed in a longitudinal shape in the vertical direction. A vacuum cleaner body that houses an electric blower and has an intake port and an exhaust port;
A separation unit that separates dust sucked together with air from the intake port into coarse dust and fine dust by driving the electric blower;
A main communication passage through which coarse dust flows together with part of the air;
An auxiliary air passage that is provided in parallel to the main communication passage and into which fine dust flows together with the remaining air,
A partition wall located between the main communication passage and the auxiliary air passage;
An opening opened in the partition wall along the main communication path;
A first filter provided in the opening;
A vacuum cleaner comprising: a second filter provided on the downstream side of the auxiliary air passage.

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