KR100548933B1 - Suction structure of vacuum cleaner - Google Patents

Abstract

The suction structure of the vacuum cleaner according to the present invention includes a dust collecting unit 400 mounted to the front of the vacuum cleaner body 100; A dust collecting unit side suction port 401 formed at a front end of the dust collecting unit 400; A front supporter 170 placed at the front end of the vacuum cleaner body 100; A suction guide 188 disposed inside the front supporter 170; And a bent portion 189 in which an inner end portion of the suction guide 188 is bent to one side to bend the flow direction of the inflow fluid.

According to the present invention, it is possible to obtain an advantage that the air flowing into the main body side can be smoothly guided to the suction port side of the dust collecting unit of the vacuum cleaner. In addition, by allowing the air to flow in the tangential direction in the dust collecting unit, smooth cyclone air flow may occur in the dust collecting unit.

Vacuum cleaner, suction

Description

Inlet structure of a vacuum cleaner

1 is a perspective view of a vacuum cleaner according to the spirit of the present invention.

Figure 2 is a front perspective view of the vacuum cleaner body according to the present invention.

3 is a cross-sectional view taken along the line II-II 'of FIG. 2;

Figure 4 is an exploded perspective view of the dust collecting unit in the vacuum cleaner according to the present invention.

5 is an exploded perspective view of the vacuum cleaner body according to the present invention.

6 is an exploded perspective view of the dust collecting unit according to the present invention.

7 is a cross-sectional view taken along the line II ′ of FIG. 3.

8 is a longitudinal cross-sectional view of the vacuum cleaner according to the present invention.

<Explanation of symbols for the main parts of the drawings>

171: main body suction port 188: suction guide

189: bend portion 191: suction side sealer

194: Songbu

The present invention relates to a vacuum cleaner, and more particularly, to a suction structure of a vacuum cleaner for guiding the flow of air flowing into the main body side of the vacuum cleaner. More specifically, it relates to a suction structure of the vacuum cleaner for guiding the flow of external air flowing into the cyclone dust collecting unit.

The vacuum cleaner is a device for cleaning the external environment by filtering foreign substances contained in the air sucked by the vacuum pressure inside the device. In the vacuum cleaner, in order to filter foreign matter from the sucked air, a dust collecting unit for filtering foreign matter is placed therein by a predetermined filtering device.

On the other hand, the filtering device includes a filter of a porous material in which foreign matter is filtered while the air is passed through the medium, and a cyclone-type filter in which foreign matter is removed from the air by cyclone flow of air. In addition, the filter of the porous material is removed when the foreign matter is deposited, or cleaned, or if a lot of foreign matter is deposited, there is a problem that can not be used continuously. On the other hand, since the cyclone type filter allows foreign matter to be separated and removed by the air flow of the cyclone during the cyclone flow of air, there is no problem of being deposited on the filter.

Recently, a multi-cyclone dust collecting unit has been introduced to generate a plurality of cyclone flows in a single dust collecting unit. Since the foreign matter is removed by a plurality of cyclone flows, the foreign matter is removed. The efficiency is even higher. In addition, since foreign matters are removed by a plurality of cyclone air flows, the filter of the porous material does not need to be separately installed, so that the user does not need to clean the filter separately.

On the other hand, in order for the cyclone flow of air to be performed in the cyclone dust collecting unit, there is a condition in which air is introduced in a predetermined direction from the inside of the dust collecting unit. In addition, the cyclone flow varies depending on the position and shape of the dust collecting unit. The present invention proposes a suction structure of a vacuum cleaner proposed in an optimal state to the structure of the cyclone dust collecting unit.

The present invention is proposed under the background as described above, and an object of the present invention is to propose a suction structure of a vacuum cleaner operating in an optimal state in which flow resistance is reduced when air is introduced into the cyclone dust collecting unit.

In addition, an object of the present invention is to propose a suction structure of a vacuum cleaner in which the flow resistance of the air in the case of a multi-cyclone dust collecting unit is low.

In addition, it is an object of the present invention to propose a dust collecting unit of the vacuum cleaner that can suck the outside air more smoothly when the dust collecting unit is placed in front of the vacuum cleaner.

Suction structure of the vacuum cleaner according to the present invention for achieving the above object is a dust collecting unit 400 mounted to the front of the vacuum cleaner body 100; A dust collecting unit side suction port 401 formed at a front end of the dust collecting unit 400; A front supporter 170 placed at the front end of the vacuum cleaner body 100; A suction guide 188 disposed inside the front supporter 170; And a bent portion 189 in which an inner end portion of the suction guide 188 is bent to one side to bend the flow direction of the inflow fluid.

According to the present invention, the suction efficiency of the vacuum cleaner is improved, and the flow resistance of the air can be obtained. In addition, by optimizing the configuration of the vacuum cleaner, there is an advantage that the size of the vacuum cleaner is reduced and the manufacturing operation is conveniently performed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a vacuum cleaner according to the spirit of the present invention.

Referring to FIG. 1, the vacuum cleaner of the present invention includes a vacuum cleaner body 100 and a suction pipe path connected to the suction side of the vacuum cleaner body 100. At least a suction fan and a dust collecting unit are disposed inside the vacuum cleaner main body 100, and foreign substances are caught and cleaned in the sucked air and then discharged to the outside.

The suction pipe is a pipe in which foreign matter is sucked together with air by the suction force of the vacuum cleaner main body 100. In detail, the suction pipe passage includes a suction nozzle body 1 for sucking foreign matter and dust together with air from the outside by a strong air flow, and a length extending from the suction nozzle body 1 according to a user's use state. A stretchable extension tube 2, an operation handle 3 provided at an end of the extension tube 2, and an operation unit 4 provided at a portion where the user's hand touches the front of the operation handle 3; And a flexible tube 5 further extending rearward from the operation handle 3 and bent according to the position of the user, and a connector 6 connected to the vacuum cleaner body 100 at an end of the flexible tube 5. And an extension pipe hanger 7 for allowing the extension pipe 2 to be mounted when the ball cleaner placed at a predetermined position of the extension pipe 2 or the suction nozzle body 1 is not used.

The connector 6 has a function of a connection terminal for allowing the user's operation signal input from the operation unit 4 to be applied to the vacuum cleaner body 100, and to allow the sucked air to flow into the vacuum cleaner body 6. The function is performed at the same time. To this end, a plurality of electrical connection ends are further provided at the ends of the connector 6. On the other hand, the connector 6 is necessary only when the operation unit 4 is placed in any part of the suction pipe, the present invention is not limited thereto. That is, when the operation unit 4 is formed anywhere in the vacuum cleaner body 100, the connector 6 may allow only the function as the inflow passage of air without the signal connection end.

In addition, the air introduced into the vacuum cleaner main body 100 through the suction pipe passage is discharged to the outside of the vacuum cleaner main body 100 after the foreign matter is filtered and cleaned inside the vacuum cleaner main body 100. Hereinafter, the configuration of the vacuum cleaner body 100 will be described.

2 is a front perspective view of the vacuum cleaner body.

Referring to FIGS. 1 and 2, the structure of the vacuum cleaner body will be described. In the vacuum cleaner body 100, a first base 110 provided on the bottom surface of the body 100 and the first base ( The second base 150 placed on the upper right side of the 110, the wheels 111 provided on both sides of the rear portion of the main body 100 to smoothly move the vacuum cleaner main body 100, and the vacuum cleaner A cover 200 provided at an upper portion of the main body 100 and a front supporter which is firmly supported between the cover 200 and the base 110 and 150 at a front portion of the main body 100 ( 170).

Of course, the connector 6 is connected to the front supporter 170 to allow outside air to be sucked. In addition, the front supporter 170 allows the shape of the front part of the vacuum cleaner body 100 to be firmly supported.

The second base 150 is provided directly above the first base 110 so that the shape of the product is beautifully maintained and the strength of the lower side of the vacuum cleaner body 100 is increased.

An exhaust cover 301 is provided at the rear of the cover 200 to form a main body exhaust port 302 so that the air cleaned by the vacuum cleaner body 100 is discharged. In addition, a movable handle 201 is formed on the upper surface of the cover 200 to rotate around a predetermined hinge point. The movement handle 201 is moved by the user's operation, so that the vacuum cleaner main body 100 is upright when the user wants to move it, and when it is stored, the mobile handle 201 can be conveniently used.

At the rear of the front supporter 170, a dust collecting unit 400 is seated and outside air is introduced therein, and a cyclone member is accommodated in the dust collecting unit 400 to filter foreign matter by cyclone flow.

On the other hand, the dust collecting unit 400 is inserted into the front portion of the vacuum cleaner body 100, the front end of the vacuum cleaner body 100 is provided with a main body suction port (see 171 of Figure 3), the outside air vacuum cleaner body Inflow to the (100) side. In addition, the air flowing into the main body suction inlet 171 is directly introduced into the dust collecting unit 400, in order to cause the cyclone flow in the internal space of the dust collecting unit 400, the main body suction opening ( 171 is guided in the tangential direction of the dust collecting unit.

FIG. 3 is a cross-sectional view taken along line II-II 'of FIG. 2 and with reference to the drawing, the configuration of the main body suction port will be described in detail.

Referring to FIG. 3, the main body suction port 171 includes a suction guide 188 extending rearward from an inner space of the front supporter 170, and a bent part that is bent in one direction at an end of the suction guide 188. 189, a support 190 provided at a portion extending from the bend 189, and a suction side sealer 191 fixed to the support 190. The suction side sealer 191 is provided by bending in the same direction as the bent portion 189.

As such, since the bent portion 189 and the suction side sealer 191 are formed by bending, the air flowing from the suction guide 188 is precisely introduced in the contact direction of the dust collecting unit 400, and thus the cyclone. Flow is performed.

In detail, the suction-side sealer 191 includes a contact portion 193 fixed to the support 190 and a flexible portion 194 formed at an end of the contact portion 193. The flexible portion 194 is provided in a thin arc shape compared to the contact portion 193, so that when the dust collecting unit side suction port 401 touches, it is deformed smoothly. Therefore, the part where the flexible part 194 and the dust collecting unit side suction port 401 contact is completely sealed, and leakage of internal air or inflow of external air through the contact portion therebetween can be blocked.                     

In addition, in order to ensure that the suction side sealer 191 is firmly fixed at the correct position, a fixing protrusion 192 protruding from the outer wall of the support 190 is formed, the fixing protrusion 192 is the suction side By being inserted into the insertion hole of the sealer 191, the fixed position of the suction-side sealer 191 is maintained accurately.

In addition, as described above, the air passing through the suction guide 188 is changed in the direction of the flow in one direction, should be introduced into the dust collecting unit side suction port (401). As such, in order to allow the flow direction of air to be bent, the suction side sealer 191 is made to be asymmetrical by being pulled to one side as a whole, and the extending directions of the conduits facing the suction side sealer 191 are different from each other.

The shape of the suction side sealer 191 will be described in detail. The suction side sealer 191 lying in the direction in which the suction side sealer 191 is bent is bent more by α than in the opposite direction. The length of the suction side sealer 191 lying in the direction in which the suction side sealer 191 is bent is longer than that in the opposite direction. That is, the sealer length L2 on the side where the flow direction is bent is longer than the sealer length L1 on the other side. By such a shape, the entire opening surface of the suction side sealer 191 can be increased, and the flow resistance of the air can be reduced. Of course, the air flowing in through the suction guide 188 may be smoothly guided to the dust collecting unit side suction port 401 corresponding to the shape in which the dust collecting unit side suction port 401 is directed to one side.

4 is a view for explaining the mounting state of the dust collecting unit.

Referring to FIG. 4, the dust collecting unit 400 is seated in a vertical direction on the dust collecting unit accommodating part 151 inside the vacuum cleaner body 100. Therefore, it is necessary to push downward when mounting and pull upward when removing.

The front supporter 170 is provided with a main body suction port 171, and a dust collecting unit suction port 401 is positioned at a corresponding position on the dust collecting unit 400 aligned with the main body suction port 171. In addition, a discharge port is formed in the dust collecting unit 400 in a direction opposite to the dust collecting unit suction port 401. In addition, the discharge port is aligned with the motor side suction port 172 and passes through the dust collecting unit 400 and the clean air is sucked to the motor side.

In particular, the outlet and the motor side inlet 172 is provided in a flat rectangular shape in order to reduce the size of the vacuum cleaner body 100 and to allow the air to flow smoothly.

5 is an exploded perspective view of the vacuum cleaner body according to the present invention.

Referring to FIG. 5, the second base 150 is placed on the front side of the first base 110, and the motor housing 300 is placed on the rear side. Then, the cover 200 is sequentially covered to form a main body 100 of the vacuum cleaner.

Here, the cover 200 is coupled to the base 110 and 150 in a state where the front supporter 170 is fastened to the cover 200 as a separate part. In the motor housing 300, the air sucked through the motor side inlet 172 flows downward in a vertical direction. Then, the introduced air is discharged to the rear by bending the flow direction in the motor housing 300 horizontally.

6 is an exploded perspective view of the dust collecting unit according to the present invention.                     

Referring to FIG. 6, the dust collecting unit 400 of the present invention does not use a porous filter such as a sponge or the like, and filters foreign matter from the cyclone flow. In addition, the cyclone flow may be performed in two or more separation chambers separated from each other, so that the fine dust in the air may be completely filtered.

In detail, a dust collecting body 406 having a plurality of foreign matter separating chambers (see 423 and 424 of FIG. 7) and a plurality of foreign matter storage chambers (see 417 and 416 of FIG. 7) and the dust collecting body 406. It is provided at the lower side of the chamber, and the chamber sealing parts 415, 402 and the dust collecting body 406 is placed above the dust collecting body 406 to prevent the foreign matter stored in the foreign matter storage chamber (416, 417) to leak The exhaust part 407 to which the flow of the air exhausted from the body 406 is guided is provided at a predetermined interval above the exhaust part 407 so that the air passing through the exhaust part 407 is directed in one direction. And a cover structure 409, 410, 411, and 412 placed above the spacer 408.

In detail, the cover structure includes a first cover 410 that forms a parent, a third cover 412 and a second cover 409 which are respectively placed in front and rear of the first cover 410, and the first cover 410. A cover insertion hole 411 for fixing the cover 410 and the second cover 409 together is included. The cover insertion slot 411 covers a part of the upper surface portion of the first cover 410 so that the appearance is beautifully implemented, and the first cover 410 and the second cover 409 are simultaneously fixed.

Inside the dust collection body 406, a conical filter 405 to smoothly remove the dirt in the cyclone flow, and a blocking portion for preventing the re-scattering of the foreign matter collected under the conical filter 405 ( 404, a flow preventing plate 403 is formed below the blocking portion 404 to slow the flow rate of the air to be rotated, so that the foreign matter sinks inside the dirt storage chamber. Here, the blocking part 404 and the flow preventing plate 403 may be formed in one body, and the conical filter 405 may be formed as a separate component.

In addition, an opening and closing button 413 is placed at one side of the first cover 410, and one end of the opening and closing button 413 is in contact with the opening and closing operation is performed by the push operation of the opening and closing button 413 Lever 414 is included. In addition, the other end of the opening / closing lever 414 contacts the first chamber sealing part 415. Therefore, by the pressing operation of the opening and closing button 413, the opening and closing lever 414 is rotated about a predetermined hinge point. When the contact portion between the first chamber sealing portion 415 and the opening / closing lever 414 is separated from the other end of the opening / closing lever 414, the first chamber sealing portion 415 may set a hinge point by its own weight. The foreign material that is rotated about the center and collected in the foreign matter storage chambers 416 and 417 is dropped by its own weight and discarded.

In addition, the chamber sealing parts 415 and 402 allow each of the lower side surfaces of the foreign matter storage chambers 415 and 416 to be hermetically sealed by the respective sealing parts. In addition, the first chamber sealing part 415 is hinged to the dust collecting body 406, and when discarding the foreign material, the first chamber sealing part 415 is opened by the hinge movement so that the foreign material can be easily discarded. . In addition, a separation plate 437 is formed on the upper surface of the dust collecting body 406 to partition the first foreign matter separating chamber 423 and the second foreign matter separating chamber 424 and form a flow path.                     

In addition, the outer surface of the dust collecting body 406 when the exhaust portion 407 is seated to the outside of the dust collecting body 406 is easily located, a plurality of guide ribs (so that the insertion operation is performed smoothly) 459 is formed. In addition, the upper edge portion of the guide rib 459 is smoothly curved, so that the insertion operation of the exhaust port 407 can be easily performed.

FIG. 7 is a cross-sectional view taken along line II ′ of FIG. 4, and the internal structure of the dust collecting unit 400 and the operation of the dust collecting unit will be described in detail with reference to FIG. 7.

First, as described in detail with reference to FIG. 6, in the dust collecting unit 400 according to the present invention, a dust collecting body 406 and a sealing part 402 for selectively sealing the lower side of the dust collecting body 406 ( 415, the conical filter 405 accommodated inside the dust collecting body 406 to increase dust collection efficiency, the blocking portion 404 for preventing re-splash of the collected foreign matter, and the flow rate of cyclone flow is reduced. A flow preventing plate 403 which allows foreign matters to fall, and prevents the lifting of dust, and an exhaust unit 407 which is disposed above the dust collecting body 406 so that the air exhausted from the dust collecting body 406 flows smoothly. And a gap 408 for collecting the air passing through the exhaust 407 in one direction, and covers 409, 410, 411 and 412 that are placed above the exhaust 407. do.

The configuration of the dust collecting body 406 will be described.

The dust collecting body 406 is provided with a plurality of walls extending up and down, the outer wall 418 formed on the outermost, the intermediate wall 419 formed inside the outer wall 418, and the intermediate wall ( An inner wall 420 formed inside 419 is included. The intermediate wall 419 and the inner wall 420 are not formed at intervals through which the dust collecting unit side suction port 401 passes, thereby allowing air to flow smoothly.

The space between the outer wall 418 and the intermediate wall 419 is the first foreign matter storage chamber 416, and the space between the intermediate wall 419 and the inner wall 420 is the second foreign matter storage chamber 417. The inner space of the inner wall 420 becomes the first foreign matter separation chamber 423. However, according to the shape of the dust collecting unit 400 in detail, the purpose of using the space may vary.

The operation or operation by the above-described configuration will be described in detail based on the flow order of air. First, the dust is introduced into the dust collecting unit 400 through the dust collecting unit side suction port 401. Here, the dust collecting unit side suction port 401 is in contact with the front supporter 170 on the outside, and communicates with the first foreign matter separation chamber 423 on the inside to introduce the outside air. In addition, a first inflow guide 421 is inward from the inner wall 420 so as to guide the flow direction of air in the direction of the inner circumferential surface of the first foreign matter separation chamber 423 inside the dust collecting unit side suction port 401. Protrudes.

During the cyclone flow of air in the first foreign matter separation chamber 423, the foreign matter falls downward and clean air passes through the opening of the conical filter 405 and is discharged upward. The conical filter 405 is applied in this way because the dust collecting unit side suction port 401 is located on the upper side, the cyclone flow of the high speed rotation occurs in the upper portion of the conical filter 405, and the relatively low speed in the lower portion. Because cyclone flow occurs. That is, in the high-speed cyclone flow, the foreign material is rotated more outwardly, but in the low-speed cyclone flow, the foreign material is spread more inward, so that the filter member is applied in a conical shape to filter the foreign material. desirable.

The conical filter 405 is seated at the center of the separation plate 437 forming the upper wall of the first foreign matter separation chamber 423, it may be provided in a structure that can be selectively separated from the separation plate (437). In addition, the conical filter 405 is formed with a plurality of openings, of course, the air flows in from the outside into the inside.

Here, the blocking portion 404 is placed under the conical filter 405 in order to prevent the re-splash of the falling foreign matter, as shown, the blocking portion 404 is expanded in diameter downwards, the foreign matter The rise of is blocked and do not get excited. In addition, a flow preventing plate 403 is formed below the blocking portion 404 at regular intervals, so that the cyclone air flow is not reached with respect to the foreign matter once collected, thereby eliminating the phenomenon of the foreign matter being lifted up. .

In addition, the foreign material filtered in the first foreign matter separation chamber 423 is stored in the first foreign matter storage chamber 416 below. Here, the first chamber sealing part 415 is placed at the lower end of the first foreign matter storage chamber 416 to prevent leakage of the stored foreign material.

On the other hand, the air flowing through the conical filter 405 to the upper side of the separation plate 437 is largely filtered foreign matter. Therefore, there is a further need for cyclone flow to allow secondary fines to be filtered out. Hereinafter, the cyclone flow performed further will be described in detail.                     

Air passing through the conical filter 405 is introduced into the plurality of second foreign matter separation chamber 424 through the second inlet guide 422. In addition, since the second inflow guide 422 directs the inner circumferential surface of the second foreign matter separation chamber 424 in a tangential direction, air introduced into the second foreign matter separation chamber 424 may be formed in the chamber. Cyclone flow occurs.

The foreign matter separated by the cyclone flow in the second foreign matter separation chamber 424 is dropped downward and stored in the second foreign matter storage chamber 417. In order to prevent the dropped foreign material from scattering again, the lower portion of the second foreign matter separating chamber 424 is contracted. In addition, the lower portion of the second foreign matter storage chamber 417 is sealed by the second chamber sealing part 402 so that the foreign matter collected in the second foreign matter storage chamber 417 does not leak.

Here, the second chamber sealing part 402 is coupled to the first chamber sealing part 415 by a bar-shaped connection structure. As such, the first chamber sealing portion 415 and the second chamber sealing portion 402 are connected by a bar-shaped connection structure to increase the internal volume of the first foreign matter storage chamber 416. . In other words, the foreign material is stored in the space spaced from the lower end of the second chamber sealing part 402 to the upper end of the first chamber sealing part 415, so that a small space such as a bar shape is provided in order to accommodate more foreign material. It is preferable to be connected by the member which occupies.

After the foreign material is filtered in the second foreign matter separation chamber 424, the foreign material is introduced into the exhaust part 407 via the exhaust part side suction port 425, and a gap between the exhaust part 407 and the spacer part 408 is provided. Gather in space. Here, the diameter of the exhaust side suction port 425 is smaller than the inner diameter of the second foreign matter separation chamber 424, the foreign matter of the second foreign matter separation chamber 424 is the exhaust portion ( The possibility of flowing together with 407 can be further reduced. In other words, the foreign matter gathered on the inner circumferential surface of the second foreign matter separation chamber 424 is prevented from flowing out through the exhaust side suction port 425.

As described, the air filtered by foreign matter by two cyclone flows is introduced into the motor side inlet 172 and flows into the motor. Then, after passing through the motor is exhausted to the rear of the vacuum cleaner body (100).

Meanwhile, a predetermined cover structure is further formed on the upper portion of the spacer 408. In detail, the first cover 410 forming the overall cover structure, the third cover 412 and the second cover 409 protecting the front and the rear of the first cover 410, and the first cover A cover insertion hole 411 is provided at 410 to fix the second cover 409.

The overall operation to the operation of the vacuum cleaner body 100 together with the operation of the dust collecting unit 400 will be described in detail with reference to the longitudinal cross-sectional view of the vacuum cleaner shown in FIG. 8.

Referring to FIG. 8, the outside air flows into the vacuum cleaner main body 100 through the main body side suction port 171 connected to the connector 6, and into the dust collecting unit 400 through the dust collection unit side suction port 401. Inflow. In addition, after the foreign matter is filtered by the operation and action as described above, the dust collecting unit 400 is introduced into the motor housing 300 through the motor side suction port 172.

At this time, the inlet is directed upward in the state in which the motor housing 300 is erected in the vertical direction. Therefore, the air introduced horizontally through the dust collecting unit 400 is turned downward to be directed downward. Then, after passing through the motor housing 300, it is discharged to the outside through the main body exhaust port 302 provided on the back of the vacuum cleaner body 100.

The present invention is not limited to the embodiments as described above, and those skilled in the art will be able to easily propose other embodiments within the scope of the same idea. Such embodiments will also be included within the scope of the invention.

According to the present invention, it is possible to obtain an advantage that the air flowing into the main body side can be smoothly guided to the suction port side of the dust collecting unit of the vacuum cleaner. Further, by allowing the air to flow in the tangential direction inside the dust collecting unit, a smooth cyclone air flow may occur inside the dust collecting unit.

In particular, when the dust collecting unit is mounted in front of the vacuum cleaner, there is an advantage that the air can flow smoothly in the direction of the dust collecting unit in a state in which the flow resistance of the air is reduced.

Claims (7)

A dust collecting unit 400 mounted to the front of the vacuum cleaner body 100; A dust collecting unit side suction port 401 formed in front of the dust collecting unit 400; A front supporter 170 placed at a front end of the vacuum cleaner body 100; A suction guide 188 disposed at an approximately center portion of the front supporter 170 to suck air; And A bent portion 189 is formed such that an inner end portion of the suction guide 188 is bent at least horizontally so that the flow direction of the inflow fluid flowing into the dust collecting unit side suction port 401 is bent. The dust collecting unit side suction port 401 is inclined obliquely in a direction in which the bent portion 189 is bent, so as to guide the inflow of the fluid in the tangential direction of the dust collecting unit 400. The method of claim 1, The suction structure of the vacuum cleaner is fixed to the rear end of the suction guide 188, the suction side sealer (191) provided in a shape that is bent toward the dust collecting unit side suction port (401). The method of claim 1, The suction guide 188 is a suction structure of the vacuum cleaner is a straight pipe in the horizontal direction. The method of claim 2, A suction structure of the vacuum cleaner, wherein a cross-sectional shape of an end portion of the suction side sealer 191 in contact with the dust collecting unit side suction port 401 is an arc shape. The method of claim 2, The suction side sealer 191 is a suction structure of the vacuum cleaner is fixed to the fixing projections (192) protruding to the end of the suction guide 188 corresponding to the end of the dust collecting unit side suction port (401). The method of claim 2, The suction side sealer (191) is a suction structure of the vacuum cleaner, the wall close to the bending direction is bent more than the opposite direction. The method of claim 2, The suction side sealer (191) is a suction structure of the vacuum cleaner, the wall of the bending direction is longer than the opposite direction.

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