HK1197167B - Electric cleaner - Google Patents

Description

Electric vacuum cleaner

The present application is a divisional application of an invention patent application having an international application number of PCT/JP2010/006484, an international application date of 2010, 11/4, a national application number of 201080056293.5, and an invention name of "electric vacuum cleaner".

Technical Field

The present invention relates to an electric vacuum cleaner, and more particularly, to an electric vacuum cleaner having a cyclone separating apparatus.

Background

Conventionally, as this type of electric vacuum cleaner, for example, the following devices are known: "the device has a housing having an introducing part for a fluid containing fine particles and a discharging part for a purified fluid, the device has a member for generating a primary vortex flow in an inflow fluid, and the housing has: a separation region including a first separation chamber and a second separation chamber respectively connected to the collection member of the fine particles; and a connecting member for generating a secondary vortex in the second separation chamber, wherein the device separates … … ″ (see, for example, patent document 1) fine particles into the first separation chamber and the second separation chamber by using a difference in inertial force applied to the fine particles having different weights.

Documents of the prior art

Patent document

Patent document 1: japanese Kohyo publication No. 2002-503541 (abstract)

Disclosure of Invention

Problems to be solved by the invention

In the conventional technique disclosed in patent document 1, since the outlet port for discharging the air in the casing (the swirling chamber in which the fine particles swirl) is provided in the casing in the axial direction, the air flows into the swirling chamber at a high speed in the axial direction, and therefore, the following problems occur: a sufficient swirling force cannot be applied to both the dust separated in the first separation chamber and the dust separated in the second separation chamber, and the centrifugal force is insufficient to deteriorate the trapping performance.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electric vacuum cleaner capable of applying a sufficient turning force to 2 portions of a turning chamber when separating dust from the 2 portions, thereby improving a collecting performance.

Means for solving the problems

The electric dust collector of the invention comprises: a suction inlet body which sucks in dust-containing air from the outside; an electric blower (blower) for generating an intake operation; and a cyclone dust removing unit disposed between the suction port body and the electric blower, and including an inlet port, a swirling chamber, and an outlet port body, the cyclone dust removing unit swirling the dust-containing air flowing in from the inlet port in the swirling chamber, separating the dust, and discharging the dust from the outlet port body. The side wall of the discharge port body is composed of a substantially cylindrical body having a plurality of holes and a substantially conical cone having a plurality of holes, and the side wall of the swirl chamber is composed of a substantially cylindrical portion and a substantially conical cone portion. The electric vacuum cleaner further comprises: a 1 st opening formed by opening a part of the cylindrical portion of the swirling chamber; a 2 nd opening formed by opening a part of the conical portion of the swirling chamber; a 1 st dust collecting chamber (dust case) communicated with the whirling chamber through the 1 st opening part; and a 2 nd dust collecting chamber communicating with the swirling chamber through the 2 nd opening.

Effects of the invention

With the above configuration, the electric vacuum cleaner of the present invention can efficiently centrifugally separate and collect dust in the 1 st dust collecting chamber and the 2 nd dust collecting chamber, respectively.

Drawings

Fig. 1 is a view showing an overall configuration of an electric vacuum cleaner of the present invention.

Fig. 2 is a plan view of the cleaner body 5 of the electric vacuum cleaner shown in fig. 1.

Fig. 3 is a sectional view a-a of the cleaner body 5 shown in fig. 2.

Fig. 4 is a sectional view taken along line b-b of the cleaner body 5 shown in fig. 2.

Fig. 5 is a perspective view showing an external appearance of the cyclone dust collecting apparatus 50 which is a main part of the cleaner body 5 of the electric vacuum cleaner shown in fig. 1.

Fig. 6 is a front view of a cyclone dust collecting apparatus 50 of an electric vacuum cleaner according to the present invention.

Fig. 7 is a rear view of a cyclone dust collecting apparatus 50 of an electric vacuum cleaner of the present invention.

Fig. 8 is a plan view of a cyclone dust collecting apparatus 50 of an electric vacuum cleaner according to the present invention.

Fig. 9 is a sectional view taken along line a-a of fig. 7 in embodiment 1.

Fig. 10 is a sectional view taken along line B-B of fig. 7 in embodiment 1.

Fig. 11 is a sectional view taken along line C-C of fig. 8 in embodiment 1.

Fig. 12 is a cross-sectional view taken along line D-D of fig. 7 in embodiment 1.

Fig. 13 is a sectional view taken along line E-E of fig. 7 in embodiment 1.

Fig. 14 is a sectional view taken along line F-F of fig. 7 in embodiment 1.

Fig. 15 is an exploded perspective view of the cyclone dust collector 50 according to embodiment 1.

Fig. 16 is a sectional view taken along line E-E of fig. 7 in embodiment 2.

Fig. 17 is a cross-sectional view taken along line D-D of fig. 7 in embodiment 2.

Fig. 18 is a partial sectional view taken along line a-a of fig. 7 in embodiment 2.

Fig. 19 is a partial sectional view taken along line a-a of fig. 7 in embodiment 2.

Fig. 20 is a partial sectional view taken along line a-a of fig. 7 in embodiment 2.

Fig. 21 is a partial sectional view taken along line a-a of fig. 7 in embodiment 2.

Fig. 22 is a partial sectional view taken along line a-a of fig. 7, which is not in accordance with embodiment 2.

Fig. 23 is a partial sectional view taken along line a-a of fig. 7, which is not in accordance with embodiment 2.

Detailed Description

Embodiment mode 1

Embodiment 1 of the present invention will be described below with reference to the drawings.

Fig. 1 is a view showing an overall configuration of an electric vacuum cleaner of the present invention.

As shown in fig. 1, the electric vacuum cleaner 100 includes a suction port body 1, a suction tube 2, a connection tube 3, a hose 4, and a cyclone-type cleaner main body 5. The suction port body 1 sucks dust and dirty air on the floor. One end of a straight cylindrical suction tube 2 is connected to the outlet side of the suction port body 1. The other end of the suction tube 2 is provided with a handle 2a, and one end of a connection tube 3, which is bent a little in the middle, is connected thereto. One end of a flexible corrugated hose 4 is connected to the other end of the connection pipe 3. Further, the cleaner body 5 is connected to the other end of the hose 4. The suction port body 1, the suction pipe 2, the connection pipe 3, and the hose 4 constitute a part of a flow path through which dust-containing air flows from the outside of the cleaner body 5 to the inside of the cleaner body 5.

Fig. 2 is a plan view of the cleaner body 5 of the electric vacuum cleaner shown in fig. 1. In addition, fig. 3 is a sectional view a-a of the cleaner body 5 shown in fig. 2, and fig. 4 is a sectional view b-b of the cleaner body 5 shown in fig. 2.

As shown in fig. 2 to 4, the cleaner body 5 of the electric vacuum cleaner 100 includes a suction air passage 49, a cyclone dust collector 50, an exhaust air passage 51, a filter 52, an electric blower 53, and an exhaust port 54. In addition, the cleaner body 5 includes wheels 55 and a winding portion, not shown, at the rear portion. The cyclone dust collecting apparatus 50 includes a cyclone part 10 and a second cyclone part 20 arranged in parallel with the cyclone part 10.

The cyclone portion 10 includes an inlet 11, a swirl chamber 12, a zero-order dust collecting chamber 114, a first-order dust collecting chamber 14, and an outlet body 15. The second cyclone part 20 includes a second inflow port 21, a second swirl chamber 22, a second-stage (second-order) dust collecting chamber 24, and a second discharge port 25. In addition, the primary dust collecting chamber 14 and the secondary dust collecting chamber 24 are formed as 1 housing part. The openings at the lower ends of the zero-stage dust collection chamber 114, the first-stage dust collection chamber 14, and the second-stage dust collection chamber 24 are configured to be opened and closed by the dust collection chamber cover 31.

An intermediate air passage 32 communicating the discharge port body 15 and the second inlet 21 is provided in an upper portion of the cyclone portion 10. Further, an exhaust air passage 51 is provided in the upper portion of the second cyclone part 20 and continuously with the second discharge port 25. Thus, the air flowing from the outside of the cleaner body 5 passes through the suction air passage 49, the inlet 11, the swirl chamber 12, the discharge port body 15, the intermediate air passage 32, the second inlet 21, the second swirl chamber 22, and the second discharge port 25 in this order, and then is discharged to the outside of the cleaner body 5 through the exhaust passage constituted by the exhaust air passage 51, the filter 52, the electric blower 53, and the exhaust port 54.

Fig. 5 is a perspective view showing an external appearance of the cyclone dust collecting apparatus 50 which is a main part of the cleaner body 5 of the electric vacuum cleaner shown in fig. 1. Fig. 6 is a front view of the cyclone dust collecting apparatus 50, fig. 7 is a rear view of the cyclone dust collecting apparatus 50, and fig. 8 is a plan view of the cyclone dust collecting apparatus 50. Fig. 9 is a sectional view taken along line a-a of fig. 7, fig. 10 is a sectional view taken along line B-B of fig. 7, fig. 11 is a sectional view taken along line C-C of fig. 8, fig. 12 is a sectional view taken along line D-D of fig. 7, fig. 13 is a sectional view taken along line E-E of fig. 7, and fig. 14 is a sectional view taken along line F-F of fig. 7. Fig. 15 is an exploded perspective view of the cyclone dust collector 50.

Next, the structure of the cyclone dust collector 50 will be described with reference to fig. 5 to 15.

The cyclone dust collecting apparatus 50 of the electric vacuum cleaner 100 includes the cyclone part 10 and the second cyclone part 20 arranged in parallel with the cyclone part 10 as described above. Further, an intermediate air passage 32 is provided at an upper portion of the cyclone part 10, and the intermediate air passage 32 is continuously connected to the second inlet 21 provided at an upper portion of the second cyclone part 20. The second cyclone part 20 has separation performance equivalent to or higher than that of the cyclone part 10.

As described above, since the second cyclone part 20 is provided at a position downstream of the cyclone part 10, the second cyclone part 20 can collect dust that cannot be completely collected by the cyclone part 10, and further purify the air discharged from the vacuum cleaner.

The cyclone dust removing part 10 includes: an inflow port 11 for introducing dust-containing air from the suction air path 49; and a swirling chamber 12 connected to the inflow port 11 in a substantially tangential direction, for swirling the dust-containing air introduced from the inflow port 11, wherein the cyclone part 10 swirls the intake air flowing in from the inflow port 11 to separate dust, and then discharges the dust from the discharge port 15. The side wall of the discharge port body 15 is constituted by a substantially cylindrical mesh portion 15b having a large number of fine holes and a substantially conical mesh portion 15a having a large number of fine holes. The side wall of the swirling chamber 12 is constituted by a substantially cylindrical portion 12b and a substantially conical portion 12 a. The cyclone dust removing unit 10 includes: a zero-order opening portion 113 formed by opening a part of the cylindrical portion 12 b; a primary opening 13 formed by opening a part of the conical portion 12a, the primary opening 13; a zero-order dust collection chamber 114 communicating with the swirl chamber 12 through a zero-order opening 113; and a primary dust collecting chamber 14 communicating with the swirl chamber 12 through the primary opening 13. The fine holes of the conical mesh 15a and the cylindrical mesh 15b are holes that communicate the inside and the outside of the wall surface having a thickness.

The zero-order opening 113 corresponds to the 1 st opening of the present invention, and the zero-order dust collecting chamber 114 corresponds to the 1 st dust collecting chamber of the present invention. The cylindrical net part 15b corresponds to a cylindrical body of the present invention, the conical net part 15a corresponds to a cone of the present invention, the primary opening 13 corresponds to the 2 nd opening of the present invention, and the primary dust collecting chamber 14 corresponds to the 2 nd dust collecting chamber of the present invention.

Here, the operation of the cyclone part 10 will be briefly described.

When the cyclone part 10 introduces the dust-containing air from the inlet 11 through the suction duct 49, the dust-containing air flows in substantially horizontally along the side wall of the swirling chamber 12, and becomes a swirling flow, forming a forced swirl region near the central axis and a quasi-free swirl region on the outer peripheral side thereof, and continues to flow downward due to the path structure and the gravity. At this time, since a centrifugal force acts on the dust, the dust having a relatively large size and specific gravity (hereinafter referred to as "dust a"), such as hair, candy bag, sand (relatively large sand), is pushed against the inner wall of the swirling chamber 12, separated from the intake air, and captured and accumulated in the zero-order dust collecting chamber 114 via the zero-order opening 113. In addition, the remaining dust enters below the swirl chamber 12 with the descending swirl flow. This causes floc dust and fine sand dust (hereinafter referred to as "dust B") which are light and easy to flow together with the airflow and have a large volume to be sent into the primary dust collecting chamber 14 through the primary opening 13, and then to be blown by the wind pressure to the upper side of the primary dust collecting chamber 14, where they are accumulated and compressed. The air from which the dust a and the dust B are removed rises along the central axis of the cylinder of the cyclone part 10 and is discharged from the discharge port body 15. The air discharged from the discharge port body 15 flows into the second swirling chamber 22 through the intermediate air duct 32 and then through the second inlet 21 of the second cyclone part 20, and the air flowing into the second swirling chamber 22 descends while swirling, passes through the secondary dust collecting chamber 24, ascends, is discharged from the second discharge port 25, and is discharged from the dust collector main body 5 through an exhaust path formed by an exhaust air duct 51, a filter 52, an electric blower 53, and an exhaust port 54.

The outlet body 15 of the cyclone portion 10 is configured as described above, and can apply a sufficient centrifugal force to both the dust a that swirls in the swirling region formed by the cylindrical portion 12B and is collected in the zero-order dust collection chamber 114, and the dust B that swirls in the swirling region formed by the conical portion 12a and is collected in the primary dust collection chamber 14. Further, since the air flow reaching below the swirling chamber 12 while swirling can be smoothly inverted by the conical mesh 15a and introduced into the flow rising at the center of the swirling chamber 12, the swirling air flow can be prevented from being disturbed, and the trapping performance can be improved. Further, since the conical mesh portion 15a is substantially conical, there are also advantages in that: when long thread-like dust such as hair is entangled in the side wall of the discharge port body 15, the entangled dust is moved in the direction of the tip of the cone, and thus the dust can be easily removed.

In addition, the total opening area of the micropores of the conical mesh 15a is smaller than the total opening area of the micropores of the cylindrical mesh 15b in the side wall of the discharge port body 15.

Since the dust a has a larger surface area and a larger air resistance than the dust B, the influence of the suction force in the centripetal direction is smaller, and therefore, even if the total opening area of the fine holes of the cylindrical mesh portion 15B is increased, the influence on the dust a collecting performance is not large. Therefore, by increasing the total opening area of the micropores of the cylindrical mesh portion 15b, the air speed of the air flow when passing through the micropores can be suppressed, and the pressure loss can be reduced.

As shown in fig. 9, the inclination angle θ 1 of the conical portion 12a with respect to the central axis of the swirling chamber 12 is made substantially equal to or smaller than the inclination angle θ 2 of the conical mesh portion 15a with respect to the central axis of the swirling chamber 12.

By setting the inclination angles θ 1 and θ 2 in this manner, the air passage cross-sectional area of the swirling air passage (the air passage other than the discharge port body 15) in the swirling chamber 12 is not reduced at the conical portion 12a, so that the pressure loss can be suppressed, the air passage of the updraft at the center of the swirling chamber 12 can be ensured, interference between the swirling air flow and the updraft can be prevented, the airflow is not disturbed, and the trapping performance can be improved. Further, the distance between the wall surface of the conical portion 12a and the conical mesh portion 15a can be prevented from being reduced, and the dust B swirling along the inner wall surface of the conical portion 12a can be suppressed from being sucked into the conical mesh portion 15 a.

The first-order opening 13 formed in the lower portion of the swirl chamber 12 is configured to have an opening area smaller than that of the zero-order opening 113.

Thereby, the following effects can be obtained: the amount of air flowing into the primary dust collecting chamber 14 through the primary opening 13 is suppressed, and re-scattering of the dust B reaching the primary dust collecting chamber 14 is suppressed.

In addition, although the second cyclone unit 20, the filter 52, and the electric blower 53 are arranged in this order at the downstream position of the cyclone unit 10 in the above embodiment 1, the present invention is not limited to the configuration example of embodiment 1, and a configuration without the second cyclone unit 20, for example, is also effective to a certain extent.

Embodiment mode 2

Embodiment 2 of the present invention will be described below with reference to fig. 16 to 23. In addition, the same names and reference numerals as those of embodiment 1 are used for the same structures as those of embodiment 1.

Fig. 16 is a sectional view taken along line E-E of fig. 7 in embodiment 2, and fig. 17 is a sectional view taken along line D-D of fig. 7 in embodiment 2.

As shown in fig. 16, the discharge port body 15 has fine holes provided in a part of the vicinity of the zero-order opening 113, for example, in a region other than a portion indicated by reference numeral 15c, in the conical mesh portion 15a constituting a part of the side wall thereof.

As described above, in the conical mesh portion 15a, the fine holes are provided in the region other than the portion 15c near the zero-order opening portion 113, so that the suction force in the axial direction is suppressed to increase the swirling force acting on the dust, and the suction force of the fine holes from the side wall of the discharge port body 15 acting on the dust a is suppressed, so that the dust a can be reliably collected in the zero-order dust collecting chamber 114. In contrast, when the fine holes are provided in the vicinity of the zero-order opening 113, the suction force from the fine holes of the side wall of the outlet body 15 acts on the dust a greatly, so that the dust a is less likely to be collected in the zero-order dust collection chamber 114, and the dust a once collected in the zero-order dust collection chamber 114 is also likely to be scattered again.

In the flip-flop type cyclone dust collector 10 as shown in embodiment 2, the outlet body 15 is configured to protrude from the upper portion of the swirling chamber 12, but since the suction force of the fine holes from the side wall of the outlet body 15 acting on the dust a is suppressed, even if the zero-order opening 113 is provided at a level close to the outlet body 15, the dust a can be reliably collected in the zero-order dust collecting chamber 114, and therefore, the depth of the zero-order dust collecting chamber 114 can be increased, the re-scattering of the dust a can be further suppressed, and the collection performance can be improved.

As shown in fig. 17, the discharge port body 15 has fine holes provided in a cylindrical mesh portion 15b constituting a part of the side wall thereof, in a region other than a part near the inlet port 11, for example, a portion indicated by reference numeral 15 d.

This can suppress the suction air flowing in from the inlet 11 from being directly sucked into the outlet body 15, further strengthen the flow in the swirling direction, improve the centrifugal force acting on the dust a, and further improve the collection performance. On the other hand, when the fine holes are provided near the inlet 11, a part of the airflow is discharged directly from the outlet body 15 without swirling in the swirling chamber 12, and an airflow in the direction opposite to the swirling direction is generated, so that the centrifugal force acting on the dust a is reduced, and the dust a is less likely to be collected.

Fig. 18 shows the axial positional relationship between the conical mesh portion 15a and the zero-order opening 113, and the axial positional relationship between the inlet 11 and the cylindrical mesh portion 15 b. In fig. 18, reference symbol a is an opening range of the zero-order opening portion 113 in the axial direction, reference symbol B is a height range of the inflow port 11 in the axial direction, reference symbol C is a height range of the cylindrical net portion 15B in the axial direction, reference symbol D is a height position of the large end of the conical net portion 15a in the axial direction, and reference symbol E is a height position of the small end of the cylindrical net portion 15B in the axial direction.

As shown in fig. 18, the height position of at least a part of the substantially conical surface of the conical mesh 15a in the axial direction is within the opening range a of the zero-order opening 113 in the axial direction.

This suppresses the suction force in the axial direction to increase the swirling force acting on the dust, ensures the distance between the zero-order opening 113 and the micropores in the side wall of the outlet body 15, suppresses the suction force acting on the dust a from the micropores in the side wall of the outlet body 15, and can reliably collect the dust a in the zero-order dust collecting chamber 114. In the convertible cyclone dust collector 10 as shown in embodiment 2, the outlet 15 protrudes from the upper part of the swirling chamber 12, but the suction force acting on the dust a from the micropores in the side wall of the outlet 15 is suppressed, so that the dust a can be reliably collected in the zero-order dust collecting chamber 114 even if the zero-order opening 113 is provided at a level close to the outlet 15. Therefore, the depth of the zero-order dust collecting chamber 114 can be increased, re-scattering of the dust a can be further suppressed, and the trapping performance can be improved (this effect is referred to as effect a).

As shown in fig. 18, the inlet 11 is configured such that the height range B of the inlet 11 in the axial direction is located within the height range C of the cylindrical mesh portion 15B in the axial direction, and the height position D of the large end of the conical mesh portion 15a in the axial direction is located outside the opening range a of the zero-order opening portion 113 in the axial direction.

This allows the airflow entering through the inlet 11 to smoothly swirl, thereby increasing the centrifugal force acting on the dust and improving the collection performance. Further, since only the conical mesh portion 15a is disposed in the opening range a of the zero-order opening portion 113 in the axial direction, the distance between the zero-order opening portion 113 and the micropores of the side wall of the outlet body 15 can be ensured more reliably, the suction force of the micropores from the side wall of the outlet body 15 acting on the dust a flying into the zero-order dust collecting chamber 114 can be suppressed, the centrifugal force acting on the dust a can be increased, and the trapping performance can be improved.

The relationship between the height position E, D of the small end and the large end of the conical mesh 15a in the axial direction and the opening range a of the zero-order opening 113 in the axial direction is not limited to the above-described relationship.

For example, as shown in fig. 19, the height position E, D of the small end and the large end of the conical mesh 15a in the axial direction may be located within the opening range a of the zero-order opening 113 in the axial direction.

As shown in fig. 20, the height position D of the large end of the conical mesh 15a in the axial direction may be located within the opening range a of the zero-order opening 113 in the axial direction, and the height position E of the small end of the conical mesh 15a in the axial direction may be located outside the opening range a of the zero-order opening 113 in the axial direction.

As shown in fig. 21, the axial height position E, D of the small end and the large end of the conical mesh 15a may be located outside the axial opening range a of the zero-order opening 113, and the axial height position E of the small end of the conical mesh 15a may be lower than the axial height position of the lower end of the zero-order opening 113.

That is, if the height position of at least a part of the substantially conical surface of the conical mesh 15a in the axial direction is located within the opening range a of the zero-order opening 113 in the axial direction, the zero-order opening 113 can be arranged at an extremely high position while ensuring the distance between the zero-order opening 113 and the micropores in the side wall of the discharge port body 15, and the same effect as the effect a described above can be obtained.

In contrast, in fig. 22 (comparative example 1), the height position of the substantially conical surface of the conical mesh 15a in the axial direction is located outside the opening range a of the zero-order opening 113 in the axial direction, and the distance between the zero-order opening 113 and the micropores of the side wall of the discharge port body 15 cannot be secured. In fig. 23 (comparative example 2), the zero-order opening 113 cannot be disposed at a high position. Therefore, the configuration examples of fig. 22 and 23 cannot obtain the above-described effects.

Further, although the second cyclone part 20 is provided in the above-described embodiments 1 and 2, only the cyclone part 10 may be provided, or a plurality of cyclone parts (second cyclone part, third cyclone part, … …) may be provided. The present invention is not limited to the horizontal type vacuum cleaners described in embodiments 1 and 2, because it relates to the structure of the cyclone dust collecting apparatus.

In addition, in embodiments 1 and 2, the fine holes of the conical mesh 15a and the cylindrical mesh 15b have been described as holes that communicate the inside and the outside of the wall surface having a thickness, but the configuration of the fine holes is not limited to this, and may be configured such that a mesh filter is attached to a frame, for example.

In addition, in embodiments 1 and 2, the sealing structure and the locking structure between the respective parts are not mentioned, and these sealing structure and locking structure are preferably provided so as not to disturb the flow of the airflow in the cyclone dust collecting apparatus 50.

Description of the reference numerals

1. An inlet body; 2. a suction tube; 3. a connecting pipe; 4. a hose; 5. a cleaner main body; 10. a cyclone dust removal part; 11. an inflow port; 12. a swirl chamber; 12a, a conical part; 12b, a cylindrical portion; 13. a primary opening portion; 14. a primary dust collecting chamber; 15. a discharge port body; 15a, a conical net part; 15b, a cylindrical net part; 20. a second cyclone dust removing part; 21. a second inlet; 22. a second swirl chamber; 24. a secondary dust collecting chamber; 25. a second discharge port; 31. a dust collecting chamber cover; 32. a middle air passage; 49. a suction air path; 50. a cyclone dust collecting device; 51. an exhaust air passage; 52. a filter; 53. an electric blower; 54. an exhaust port; 55. a wheel; 100. an electric vacuum cleaner; 113. a zero-order opening; 114. a zero-level dust collecting chamber.

Claims (1)

1. An electric dust collector is characterized in that,

the electric vacuum cleaner is provided with:

a suction inlet body which sucks in dust-containing air from the outside;

a cleaner main body provided with an electric blower for generating suction air;

a cyclone dust collector having at least one cyclone dust collecting unit provided between the suction port body and the electric blower, the cyclone dust collecting unit including an inflow port, a whirling chamber and a dust collecting chamber, the dust-containing air sucked from the suction port body flowing into the inflow port from the electric blower side, the whirling chamber whirling the dust-containing air sucked from the inflow port, and the dust collecting chamber collecting dust separated in the whirling chamber;

a suction air path provided in the cleaner body, forming a flow path for sucking the dust-containing air flowing in from the suction port body into the cyclone dust collector, one side of the flow path being connected to the inlet port when the cyclone dust collector is installed in the cleaner body, the suction air path passing through a lower portion of the dust collecting chamber and being connected to the inlet port,

the suction inlet side of the suction air path is disposed to be located at the center of the width of the cyclone dust collector.