JP5472363B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to an electric vacuum cleaner including a cyclone dust collecting unit that swirls air containing dust to be sucked and separates and collects air and dust.

  Conventional vacuum cleaners have a structure in which dust in the air is collected by allowing air and dust sucked into the vacuum cleaner to pass through a dust collection filter and a dust collection bag. However, the vacuum cleaner as described above has a problem that it is inconvenient for the user because it is necessary to periodically purchase and prepare a dust bag.

  In response to these problems, a cyclone dust collection unit that separates air and dust using centrifugal force and inertial force and collects dust without using a consumable dust bag is installed. A vacuum cleaner has been proposed. As a vacuum cleaner equipped with such a cyclone dust collection unit, for example, two cyclones provided in concentric circles are connected in series to improve the separation performance of the cyclone dust collection unit. Has been proposed (see, for example, Patent Document 1).

Japanese Examined Patent Publication No. 62-50141 (FIG. 2)

  However, according to the cyclone dust collection unit of Patent Document 1 described above, the separation performance of the cyclone dust collection unit can be increased by connecting a plurality of cyclones in series, but the cyclone dust collection unit was separated and collected by the cyclone. There is a problem in that air flows into the dust collecting portion, and dust once collected in the dust collecting portion is re-scattered and the separation performance of the cyclone is lowered. Further, since the two cyclones are arranged concentrically, the shape becomes large, and the vacuum cleaner equipped with the cyclone also becomes large, resulting in a problem that the operability for the user is lowered.

  The present invention has been made to solve the above-described problems, and provides an electric vacuum cleaner equipped with a cyclone dust collecting unit that has a compact body and can achieve high separation performance. It is intended.

Vacuum cleaner according to the present invention, the cleaning in between the suction port body for sucking air containing dust from the outside, and a cleaner main body to place the electric blower generating the suction, and the suction port body and the electric blower the machine body provided separately, the electric blower side inlets for air containing dust flows sucked from the suction port body facing, whirling chamber for swirling the dust-containing air sucked from said inlet, said pivot a cyclone dust collection unit having at least one or more cyclone unit having a dust case, for collecting dust separated by the chamber, and the cyclone dust collection unit is formed as a separate body, provided in the cleaner body the one in the cyclone dust collection unit is installed in the cleaner body is connected to the inlet, sucks the dust-containing air flowing from the suction port body into the cyclone dust collection unit And a suction air passage which forms a flow path for that, the suction air path is one that is placed in the lower part of the cyclone dust collection unit.

  According to the electric vacuum cleaner of the present invention, it is possible to suppress the dust once collected while the main body of the vacuum cleaner is suppressed from being enlarged by the cyclone dust collecting unit, and to thereby prevent the dust from being re-scattered. A cyclone dust collection unit with high separation performance can be obtained.

The external appearance perspective view of the vacuum cleaner which concerns on Embodiment 1 of this invention. The top view of the vacuum cleaner which concerns on Embodiment 1 of this invention. The aa cross-sectional schematic of the vacuum cleaner which concerns on Embodiment 1 of this invention. Bb cross-sectional schematic of the vacuum cleaner which concerns on Embodiment 1 of this invention. The perspective view of the cyclone dust collecting unit which concerns on Embodiment 1 of this invention. The front view of the cyclone dust collection unit which concerns on Embodiment 1 of this invention. The rear view of the cyclone dust collection unit which concerns on Embodiment 1 of this invention. The top view of the cyclone dust collection unit which concerns on Embodiment 1 of this invention. The AA arrow sectional view of the cyclone dust collection unit concerning Embodiment 1 of the present invention. BB arrow sectional drawing of the cyclone dust collection unit which concerns on Embodiment 1 of this invention. The DD arrow sectional drawing of the cyclone dust collection unit which concerns on Embodiment 1 of this invention. EE arrow sectional drawing of the cyclone dust collecting unit which concerns on Embodiment 1 of this invention. The CC arrow directional cross-sectional view of the cyclone dust collecting unit of the shape different from Embodiment 1 of this invention. FIG. 3 is an exploded view of a cyclone dust collection unit having a shape different from that of Embodiment 1 of the present invention. The related figure of the side part dust case shape which concerns on Embodiment 1 of this invention, and a collection rate. EE arrow sectional drawing of the cyclone dust collection unit which concerns on Embodiment 2 of this invention. EE arrow sectional drawing of the cyclone dust collecting unit which concerns on Embodiment 3 of this invention.

Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS.
FIG. 1 is an external perspective view of the electric vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a top view of the electric vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a schematic cross-sectional view taken along line aa of the electric vacuum cleaner according to the first embodiment, and FIG. 4 is a schematic cross-sectional view taken along line bb of the electric vacuum cleaner according to the first embodiment of the present invention.

  As shown in FIG. 1, the vacuum cleaner 100 includes a suction port body 1, a suction pipe 2, a connection pipe 3, a hose 4, and a vacuum cleaner body 5 on which a cyclone dust collection unit 101 is mounted. Yes. Air containing dust sucked from the suction port body 1 is sucked into the cleaner body 5 via the suction pipe 2, the connection pipe 3 and the hose 4 in order. The suction pipe 2 has one end connected to the suction port body 1 and the other end connected to the connection pipe 3, and is constituted by a straight cylindrical pipe. The connection pipe 3 has one end connected to the suction pipe 2 and the other end connected to the hose 4, and a handle 3 a held by the user of the vacuum cleaner is provided at a part of the connection pipe 3. One end of the hose 4 is connected to the connection pipe 3 and the other end is connected to the cleaner body 5, and is constituted by a flexible bellows-like hose. Further, the cleaner body 5 is provided with wheels 6 and an exhaust port 7 for discharging from the inside of the cleaner body 5 to the outside.

Next, the structure in the cleaner body 5 will be described with reference to FIGS.
As shown in FIG. 2, the cleaner body 5 includes a suction air passage 8 that connects air containing dust flowing from the hose 4 to the cyclone dust collection unit 101, and air from which dust has been removed by the cyclone dust collection unit 101. An exhaust air passage 9 is provided to discharge the air. As shown in FIG. 3, the air discharged to the exhaust air passage 9 passes through a filter 10 that removes fine dust that could not be collected by the cyclone dust collecting unit 101, and is then sucked into the electric blower 11. The air sucked into the electric blower 11 is discharged from the exhaust port 7 to the outside of the cleaner body 5. In addition, the height of the cleaner body 5 is defined as H. As shown in FIG. 4, the suction air passage 8 is provided below the cyclone dust collecting unit 101 so as to avoid the electric blower 11 and the cord reel 12 as viewed in the longitudinal section of the cleaner body 5. I understand. Thus, air containing dust can be supplied to the cyclone dust collecting unit 101 while suppressing an increase in the height H of the cleaner body 5. In addition, the cord reel 12 winds and accommodates the cord which connects the electric blower 11 and a household outlet in the cleaner body 5.

Next, the cyclone dust collecting unit 101 will be described with reference to FIGS.
5 is a perspective view of the cyclone dust collection unit 101 according to Embodiment 1 of the present invention, FIG. 6 is a front view of the cyclone dust collection unit 101 according to Embodiment 1 of the present invention, and FIG. FIG. 8 is a rear view of the cyclone dust collection unit 101 according to Embodiment 1 of the present invention, and FIG. 8 is a top view of the cyclone dust collection unit 101 according to Embodiment 1 of the present invention.

As shown in FIGS. 5 to 8, the cyclone dust collecting unit 101 includes a first cyclone 20 disposed on the upstream side, a first cyclone 20 disposed side by side, and a first cyclone disposed on the downstream side of the first cyclone 20. It consists of two cyclones 30.
The first cyclone 20 is connected to the first inlet 21 for taking in the air containing dust from the intake air passage 8, and is connected to the first inlet 21 in a substantially tangential direction and swirls the air containing the dust flowing in from the first inlet 21 inside. The first swirl chamber 22 is configured to include a side dust case 23 provided on the side of the first swirl chamber 22, and a first dust case 24 disposed below the first swirl chamber 22. The side dust case 23 communicates with the first swirl chamber 22 through a side opening 25 provided on a wall surface at a substantially intermediate position in the longitudinal direction of the first swirl chamber 22. The side opening 25 is provided on the side away from the second cyclone 30 in the wall surface of the first swirl chamber 22.
The second cyclone 30 includes an intermediate air passage 31 that communicates with the first cyclone 20, a second inlet 32 that takes in air containing dust that has passed through the first cyclone 20 from the intermediate air passage 31, and a second flow A second swirl chamber 33 connected to the inlet 32 in a substantially tangential direction and swirling air containing dust flowing therein, a second dust case 34 provided below the second swirl chamber 33, and the exhaust air passage 9 It is comprised by the 2nd discharge port 35 which discharges the air from which the dust was removed in the communication 2nd turning chamber 33.

Here, as shown in FIG. 8, the side dust case 23 is installed on the side of the first cyclone 20 and the second cyclone 30, and the width L1 of the side dust case 23 is the same as that of the first cyclone 20. The second cyclone 30 is configured to be smaller than the combined width L2. Thereby, cyclone dust collection unit 101 can be constituted compactly. Further, the width L1 of the side dust case 23 is configured to be approximately the same as the width L2 of the first cyclone 20 and the second cyclone 30 combined. Thereby, since the width L1 of the side dust case 23 can be increased, the dust collection capacity can be increased. In addition to these, by providing the side opening 25 on the side of the wall of the first swirl chamber 22 away from the second cyclone 30, the airflow entering the side dust case 23 from the side opening 25 is provided. However, it is possible to suppress the separation performance of the cyclone dust collecting unit 101 from being lowered by flowing back to the back of the side dust case 23 and re-scattering the dust accumulated in the side dust case 23.
Moreover, since this shape changes with the mounting method to a vacuum cleaner, it does not specifically limit, If the diameter of the 1st cyclone 20 is set to D, by setting D1 <= L1 <= L2 in any case, it is a cyclone. The dust collection unit 101 can be configured compactly.

  Here, the first dust case 24 and the second dust case 34 are provided with the partition plate 40 in one case to form the first dust case 24 and the second dust case 34. Further, the side dust case 23, the first dust case 24, and the second dust case 34 are configured so that the lower part can be opened with a single lid 41. The dust collected in the dust case can be discarded in one operation. Thereby, a user can reduce the trouble concerning disposal of dust.

Next, the internal configuration of the cyclone dust collecting unit 101 will be described with reference to FIGS.
9 is a cross-sectional view of the cyclone dust collection unit 101 according to the first embodiment of the present invention taken along the line AA, and FIG. FIG. 11 is a sectional view taken along line DD of the cyclone dust collecting unit 101 according to Embodiment 1 of the present invention, and FIG. 12 is a cyclone dust collecting unit according to Embodiment 1 of the present invention. It is EE arrow sectional drawing of 101. FIG.

  As shown in FIG. 9, the first cyclone 20 has a first swirl chamber 22 and a side dust case 23 in a side opening 25 provided on a wall surface at an intermediate position in the substantially longitudinal direction of the first swirl chamber 22. Communicate. Further, the first swirl chamber 22 and the first dust case 24 communicate with each other through a first opening 26 provided below the first swirl chamber 22. The first swirl chamber 22 and the intermediate air passage 31 communicate with each other at a first discharge port 27 provided above the first swirl chamber 22 and substantially concentrically with the first swirl chamber 22. On the upstream side of the discharge port 27, a first exhaust cylinder 28 having a plurality of openings on the side surface serving as an exhaust port body is provided so as to protrude into the first swirl chamber 22. Here, the first exhaust cylinder 28 is composed of a conical portion 28 a formed in a substantially conical shape and a cylindrical portion 28 b formed in a cylindrical shape, and the cylindrical portion 28 b first protrudes from the first discharge port 27. The conical portion 28a protrudes from the end of the cylindrical portion 28b. The first swirl chamber 22 has a shape in which a cylindrical portion and a conical portion are combined.

  As shown in FIG. 10, the second cyclone 30 is provided with a second inflow port 32 into which dust-containing air from which dust has been removed to some extent by the first cyclone 20 is provided above the second swirl chamber 33. The swirl chamber 33 and the second dust case 34 communicate with each other through a second opening 36 provided below the second swirl chamber 33. The second swirl chamber 33 and the exhaust air passage 9 communicate with each other at a second discharge port 35 provided above the second swirl chamber 33 and substantially concentrically with the second swirl chamber 33. On the upstream side of the discharge port 35, a cylindrical second exhaust cylinder 37 serving as an exhaust port body is provided so as to protrude into the second swirl chamber 33. Here, the second exhaust cylinder 37 is formed in a cylindrical shape having no holes in the side walls and opened at both ends. The second swirl chamber 33 has a shape in which a cylindrical portion and a conical portion are combined.

Further, as shown in FIG. 12, the side dust case 23 includes a main body side wall surface 23a adjacent to the first cyclone 20 and the second cyclone 30, an outer side wall surface 23b facing the main body side wall surface 23a, The first wall surface 23c connects the main body side wall surface 23a and the outer wall surface 23b on the one cyclone 20 side, and the second wall surface 23d connects the main body side wall surface 23a and the outer wall surface 23b on the second cyclone 30 side. Here, an angle 23e formed by the outer wall surface 23b and the first wall surface 23c is configured to be connected by a circular arc, and dust flowing in along the first wall surface 23c from the side opening 25 is smoothly moved to the side. Into the inner dust case 23 (that is, the second wall surface 23d side). With such a configuration, the dust is accumulated up to the back of the side dust case 23, so that the dust can be efficiently collected in the side dust case 23. Further, since dust accumulates from the back of the side dust case 23, it is possible to prevent the dust accumulated in the side dust case 23 from being re-scattered by the airflow entering the side dust case 23 from the side opening 25. I can do it.
Also, by setting the angle θ of the corner 23e to 90 ° or more, the dust is accumulated to the back of the side dust case 23 in the same manner as described above, so that the dust is efficiently collected in the side dust case 23. be able to. Further, since dust accumulates from the back of the side dust case 23, it is possible to prevent the dust accumulated in the side dust case 23 from being re-scattered by the airflow entering the side dust case 23 from the side opening 25. I can do it.

  Further, by configuring the thickness T of the side dust case 23 mounted on the cyclone dust collecting unit 101 to be thin, the height H of the cleaner body 5 can be suppressed, thereby making the cleaner body 5 compact. I can do it.

Here, in the 1st turning chamber 22 and the 1st opening part 26, the shape different from Embodiment 1 is shown in FIG. 13 is a cross-sectional view of the cyclone dust collecting unit 101 having a shape different from that of the first embodiment of the present invention, as viewed from the direction of the arrow C-C. FIG. FIG.
As shown in FIGS. 13 and 14, the conical portion of the first swirl chamber 22 may be protruded into the first dust case 24 and the first opening 26 may be formed at the tip.

Next, the operation of the electric vacuum cleaner according to Embodiment 1 will be described.
When a switch (not shown) provided on the handle 3a is pressed, driving of the electric blower 11 is started, dust on the floor surface and surrounding air are sucked from the suction port body 1, and the sucked dust-containing air is sucked into the suction pipe 2. The suction air passage 8 of the cleaner body 5 is reached via the connection pipe 3 and the hose 4. The dust-containing air that has reached the intake air passage 8 is then removed by the cyclone dust collection unit 101, and the air discharged from the cyclone dust collection unit 101 passes through the exhaust air passage 9 and the filter 10 to the electric blower 11. Sucked. Thereafter, the air discharged from the electric blower 11 is discharged out of the cleaner body 5 through the exhaust port.

Next, the operation in the cyclone dust collecting unit 101 will be described.
The dust-containing air that has flowed into the first swirl chamber 22 from the first inlet 21 is swirled in the first swirl chamber 22 to separate the air and dust, and the surface area of the dust contained in the dust-containing air has a relatively large surface area. Dust having a large air resistance (hereinafter referred to as dust A) is collected in the side dust case 23 from the side opening 25 provided on the side wall of the first swirl chamber 22. At this time, the dust flowing into the side dust case 23 from the side opening 25 is sequentially accumulated from the position of the side opening 25 facing the inside of the side dust case 23. Further, dust having a relatively small surface area and small air resistance (hereinafter referred to as dust B) is collected in the first dust case 24 from the first opening 26 provided below the first swirl chamber 22. The On the other hand, dust that has a very small surface area that cannot be separated from the air by swirling in the first swirl chamber 22 and that has a very small air resistance (hereinafter referred to as dust C) is combined with the air in the first exhaust pipe. 28 passes through a hole provided in the wall surface and is discharged to the intermediate air passage 31.

The dust-containing air containing the dust C flowing in the intermediate air passage 31 flows into the second swirl chamber 33 from the second inlet 32, and the air and dust C are separated by swirling in the second swirl chamber 33, The separated dust C is collected in the second dust case 34 from the second opening 36 provided below the second swirl chamber 33.
Here, the second cyclone 30 is configured to have higher separation performance than the first cyclone 20. For example, since the first cyclone 20 contains various types of dust in the dust-containing air, the first cyclone 20 includes a side dust case 23 in order to efficiently collect the dust. However, since the second cyclone 30 contains only the minute dust C in the dust-containing air, the second cyclone 30 is configured to strengthen the swirl in the second swirl chamber 33.

Next, the collection rate and collection capacity of the side dust case 23 will be described. FIG. 15 is a relationship diagram between the shape of the side dust case and the collection rate according to Embodiment 1 of the present invention.
FIG. 15 shows the side dust when the thickness L of the side dust case 23 is changed without changing the width L1 and height of the side dust case 23 and the shape of the side opening 25 from the predetermined shape. The probability (collection rate) that the case 23 can collect the dust A is shown.

  As shown in FIG. 15, when the thickness T of the side dust case 23 takes the optimum thickness m, the collection rate of the dust A is maximized. When considering a household vacuum cleaner, the dust A includes large garbage such as coins and pieces of paper. Therefore, if the thickness T is too small, the dust A that is difficult to collect increases, and the collection performance decreases. On the other hand, if the thickness T is too large, the amount of air entering the side dust case 23 increases, and airflow swirl occurs in the side dust case 23. Therefore, re-scattering increases, and the collection rate increases. descend. Moreover, since the height H of the cleaner body 5 is increased, the thickness T is preferably as thin as possible. Therefore, the thickness T is preferably the optimum thickness m. It is known that the optimum thickness m is around 20 mm from the size of the dust A that exists in a general household and is sucked by a vacuum cleaner.

  In addition, when the width L1 of the side dust case 23 is short, the amount of air that enters the side dust case 23 increases, a swirling flow is generated in the side dust case 23, and re-scattering increases. In particular, when the width L1 of the side dust case 23 is smaller than the maximum diameter D of the first cyclone 20, the amount of air flowing into the side dust case 23 is significantly increased. For this reason, the shape of the side dust case 23 is preferably widened after securing the thickness T in a range that does not affect the collection rate. Thereby, the collection performance of the side dust case 23 is improved, and the collection capacity can be increased. If the width L1 of the side dust case 23 exceeds the width L2 of the cyclone dust collection unit 101, the size of the cleaner body 5 increases, and the operability of the cleaner becomes worse. Therefore, it is desirable that the width L1 of the side dust case 23 satisfies D1 ≦ L1 ≦ L2 in consideration of the operability of the cleaner body 5.

  Further, the side opening 25 may be provided on the side away from the second cyclone 30 in the side wall of the first swirl chamber 22. With the above configuration, the dust flowing into the side dust case 23 from the side opening 25 is thrown in from the vicinity of the first wall surface 23 c of the side dust case 23. As a result, dust accumulates from the second wall surface 23 d side in the side dust case 23, so the accumulated dust and the side opening 25 are largely separated from each other, so that dust caused by air flowing into the side dust case 23 Re-scattering can be suppressed.

  Further, by making the angle θ of the corner 23e an obtuse angle of 90 ° or more, the dust flowing into the side dust case 23 can be smoothly conveyed to the second wall surface 23d side, and the accumulated dust and the side portion Since the opening 25 is greatly separated, it is possible to suppress dust re-scattering due to air flowing into the side dust case 23. Conversely, when the angle θ of the corner 23e is set to an acute angle smaller than 90 °, the dust flowing into the side dust case 23 stagnates and accumulates in the vicinity of the corner 23e, so that the collection performance of the side dust case 23 is improved. In addition to being reduced, the amount of collected particles is also reduced because dust cannot be collected in the entire side dust case 23.

  By adopting the configuration of the cyclone dust collecting unit 101 as described above, high collection performance can be obtained while the cleaner body 5 is configured in a compact manner.

Embodiment 2. FIG.
The vacuum cleaner according to the second embodiment of the present invention is different from the first embodiment in the configuration of the side dust case 23 and the suction air passage 8, and the other configurations are the same as those in the first embodiment. The same. Hereinafter, the difference will be mainly described. The same parts as those in the first embodiment are denoted by the same reference numerals, and a part of the description is omitted.

FIG. 16 is a cross-sectional view taken along the line EE of the cyclone unit according to Embodiment 2 of the present invention.
FIG. 16 shows that the angle θ of the angle 23e formed by the outer wall surface 23b and the first wall surface 23c in the side dust case 23 is an obtuse angle of 90 ° or more, and the suction air passage 8 is located below the first cyclone 20 and on the side. This is provided on the side of the part dust case 23. Here, assuming that the width L1 of the side dust case 23, the width L2 of the first cyclone 20 and the second cyclone 30 combined, and the diameter D of the first cyclone 20, there is a relationship of D <L1 <L2. In addition, the suction air passage 8 is configured to fall within a width L <b> 2 that combines the first cyclone 20 and the second cyclone 30.

  By setting it as the above structures, the freedom degree of installation of the electric blower 11 in the cleaner body 5 and the cord reel 12 can be raised, without enlarging the height H of the cleaner body 5. FIG.

Embodiment 3 FIG.
The vacuum cleaner according to Embodiment 3 of the present invention is different from Embodiment 2 in the installation direction of the cyclone dust collecting unit 101 and the configuration of the suction air passage 8, and the other configurations are the same as those described in the above embodiment. It is the same as Form 2. Hereinafter, the difference will be mainly described. The same parts as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and a part of the description is omitted.

FIG. 17 is a cross-sectional view of the cyclone section according to the third embodiment of the present invention taken along line EE.
FIG. 17 shows a case where the side dust case 23 of the cyclone dust collecting unit 101 is mounted on the cleaner body 5 so that the side dust case 23 faces upward, and the suction air passage 8 is located below the first cyclone 20 and the second cyclone 30. And it is provided between the first cyclone 20 and the second cyclone 30.

In general, the vacuum cleaner can be stably moved when the vacuum cleaner body 5 is pulled by connecting the hose 4 to a substantially central position of the vacuum cleaner body 5. Therefore, in the configuration as in the second embodiment described above, the suction air passage 8 is not installed at the approximate center of the cleaner body 5, so that the operability of the cleaner body 5 is deteriorated. Further, when the connection between the hose 4 and the cleaner body 5 is to be provided at substantially the center of the cleaner body 5, the suction air passage 8 needs to be bent at least three times, thereby reducing the pressure loss of the suction air passage 8 itself. There was a problem of becoming larger.
Therefore, in the third embodiment, the degree of freedom of installation of the electric blower 11 and the cord reel 12 in the cleaner body 5 can be increased without increasing the height H of the cleaner body 5 by adopting the configuration as described above. While being able to raise, the pressure loss of the suction air path 8 itself can be reduced, maintaining the operativity of the cleaner body 5. FIG.
In addition, although the installation direction of the cyclone dust collecting unit 101 in the third embodiment may be mounted so that the side dust case 23 faces downward, in that case, it is configured so that the suction air passage 8 can be removed. The cyclone dust collecting unit 101 can be detached from the cleaner body 5, and the same effect as in the third embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 1 Suction port body, 2 Suction pipe, 3 Connection pipe, 3a Handle, 4 Hose, 6 Wheel, 7 Exhaust port, 8 Suction air path, 9 Exhaust air path, 10 Filter, 11 Electric blower, 12 Cord reel, 20 1st Cyclone, 21 first inlet, 22 first swirl chamber, 23 side dust case, 23a body side wall surface, 23b outer wall surface, 23c first wall surface, 23d second wall surface, 23e square, 24 primary dust case, 25 side portion Opening portion, 26 First opening portion, 27 First discharge port, 28 First exhaust pipe, 28a Conical portion, 28b Cylindrical portion, 30 Second cyclone, 31 Intermediate air passage, 32 Second inflow port, 33 Second swirl chamber , 34 Second dust case, 35 Second discharge port, 36 Second opening, 37 Second exhaust cylinder, 40 Partition plate, 41 Lid, 100 Vacuum cleaner, 101 Cyclone dust collection Knit

Claims (5)

A suction port for sucking dust-containing air from the outside;
A vacuum cleaner body that arranges an electric blower that generates intake air;
Said suction port body and the cleaner main body to and from the electric blower provided separately, the inlet of dust-containing air sucked from the suction port body facing the electric blower side flows from the inlet A cyclone dust collecting unit including at least one cyclone unit including a swirling chamber for swirling the sucked dust-containing air, and a dust case for collecting dust separated by the swirling chamber;
The suction port body is formed separately from the cyclone dust collection unit , provided in the cleaner body, and one of the cyclone dust collection units is connected to the inlet when the cyclone dust collection unit is installed in the cleaner body. A suction air passage that forms a flow path for sucking dust-containing air flowing from the cyclone dust collection unit,
The vacuum cleaner, wherein the suction air passage is installed in a lower part of the cyclone dust collecting unit.   The vacuum cleaner according to claim 1, wherein the suction air passage is installed so as to fit within a width of the cyclone dust collecting unit. Wherein the suction port body side of the suction air passage, the electric vacuum cleaner according to claim 1 or claim 2, characterized in that it is installed so as to be located substantially at the center of the width of the cyclone dust collection unit. The vacuum cleaner body includes a cord reel for winding and storing a cord connecting the electric blower and an outlet around the vacuum cleaner body,
The vacuum cleaner according to any one of claims 1 to 3, wherein the suction air passage is provided avoiding the electric blower and the cord reel. The cyclone dust collecting unit includes at least two cyclone units,
The width of the cyclone part on the side connected to the suction air passage among the at least two or more cyclone parts is smaller than the width of the cyclone dust collecting unit. A vacuum cleaner according to crab.

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