WO2024071622A1

WO2024071622A1 - Dust collector and cleaner having same

Info

Publication number: WO2024071622A1
Application number: PCT/KR2023/010791
Authority: WO
Inventors: 홍석만; 허광수; 최중근
Original assignee: 삼성전자주식회사
Priority date: 2022-09-30
Filing date: 2023-07-26
Publication date: 2024-04-04
Also published as: KR20240045905A

Abstract

A cleaner is disclosed. The cleaner comprises: a suction head which suctions foreign matter; a dust collector which communicates with the suction head; and a fan which is provided to generate suction power within the dust collector. The dust collector may comprise: a housing which includes an inlet and an outlet arranged toward a first direction from the inlet; a rotating body which is rotatably provided within the housing; a partition wall which is provided between the housing and the rotating body; a first flow path which is formed between the partition wall and the rotating body and provided to direct air, introduced though the inlet, toward the first direction; and a second flow path which is formed between the partition wall and the housing and provided to direct the air toward a second direction opposite to the first direction.

Description

Dust collection device and cleaner having same

The present disclosure relates to a dust collecting device and a cleaner having the same, and more specifically, to a dust collecting device with an improved structure and a cleaner having the same.

A vacuum cleaner is a device that cleans the surface by removing foreign substances, and vacuum cleaners are commonly used in homes. A vacuum cleaner cleans the room by sucking in air using the suction power of a fan motor unit and then separating foreign substances in the sucked air with a device such as a filter. There are two types of vacuum cleaners: canister type and upright type. Recently, robot vacuum cleaners are used to perform cleaning work by automatically traveling through the cleaning area without user intervention and sucking in foreign substances such as dust from the surface being cleaned. is becoming popular.

The vacuum cleaner includes a dust collection device inside the vacuum cleaner so that foreign substances contained in the sucked air are filtered out by a predetermined filtering device. Filtering devices that filter out foreign substances in a dust collection device include a porous filter device in which foreign substances are forcibly filtered out as air passes through a porous filter, and a cyclone type dust collection device that filters out foreign substances during the cyclonic flow of air.

One aspect of the present disclosure provides a dust collection device and cleaner capable of improving dust collection efficiency.

The technical problem to be achieved in this document is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

A vacuum cleaner according to an aspect of the present disclosure includes a suction head that suctions foreign substances, a dust collecting device in communication with the suction head, and a fan provided to generate suction force inside the dust collecting device. The dust collecting device includes a housing including an inlet and an outlet disposed in a first direction from the inlet, a rotating body rotatably provided inside the housing, a partition provided between the housing and the rotating body, and the A first flow path is formed between the partition and the rotating body, and the air flowing into the inlet is directed in the first direction. It is formed between the partition and the housing, and the air flows in a direction opposite to the first direction. It may include a second flow path provided to face a second direction.

The partition may include one end disposed toward the first direction, and the first flow path and the second flow path may be connected at the one end.

The partition may include another end disposed opposite to the one end, and the first flow path and the second flow path may be connected to the other end.

The dust collecting device may further include a guide wall extending from the inlet toward the partition wall so that air flowing into the inlet moves into the first flow path.

The guide wall includes one end of the guide wall disposed toward the first direction and the other end of the guide wall disposed opposite to the one end of the guide wall, and the other end of the partition wall is downstream of one end of the guide wall with respect to the second direction. Can be placed on the side.

The guide wall is spaced apart from the partition wall toward the center of the housing, and the dust collecting device is formed between the partition wall and the guide wall to allow air passing through the second flow path to move to the first flow path. It may further include a re-inlet.

The dust collection device may further include a radiating rib connecting the partition wall and the guide wall.

The dust collection device may further include a dust collection chamber disposed downstream from the other end of the partition in the second direction to accommodate foreign substances in the air that have moved into the second flow path.

The guide wall may be disposed inside the housing, and the dust collection chamber may be formed between the housing and the guide wall.

The dust collecting device further includes a rotary motor that provides driving force to rotate the rotary body, and a rotary motor case disposed inside the housing to protect the rotary motor, and the rotary motor case is the first. 1 It may include a through hole provided so that air passing through the flow path moves to the outlet.

The through hole may include an opening formed at an end in the second direction, and the end of the partition may be disposed downstream of the opening in the first direction.

The rotating motor case may be disposed inside the partition wall, surround the opening, and may further include an inclined surface inclined toward the partition wall in the first direction.

The partition wall may include a support protrusion provided on the outer peripheral surface to be supported on the housing.

The rotating body may include a blade including a plurality of wings.

The inlet and the outlet may be arranged in a straight line.

A vacuum cleaner according to an aspect of the present disclosure includes a suction head that suctions foreign substances, a dust collecting device in communication with the suction head, and a fan provided to generate suction force inside the dust collecting device.

The dust collection device includes a housing including an inlet and an outlet, a rotating body rotatably provided inside the housing, a dust collecting chamber provided inside the housing to accommodate foreign substances scattered by the rotating body, and air collecting the dust. It includes a partition wall provided between the housing and the rotating body to form a flow path toward the chamber.

The dust collecting device may further include a guide wall extending from the inlet toward the partition wall to guide air introduced into the inlet.

The partition includes one end disposed adjacent to the outlet and the other end disposed opposite to the one end, and the dust collecting device is disposed downstream from the other end of the partition to accommodate foreign substances in the air that have moved into the flow path. It may further include a dust collection chamber.

A dust collecting device according to an aspect of the present disclosure includes a housing including an inlet through which air flows and an outlet disposed in a first direction from the inlet, a blade rotatably provided inside the housing, the housing and the blade. a partition wall provided between the partition wall, a guide wall extending from the inlet towards the partition wall to guide air introduced into the inlet port, and the partition wall and the blade so that the air guided from the guide wall moves toward the first direction. It includes a first flow path formed between the partition wall and the housing, which is connected to the first flow path and allows air to move in a second direction opposite to the first direction.

The partition may include one end disposed toward the first direction and the other end disposed opposite to the one end, and the first flow path and the second flow path may be connected at the one end and the other end.

According to the spirit of the present disclosure, the dust collection efficiency of the dust collection device and the cleaner having the same can be improved.

The effects according to the spirit of the present disclosure are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description below. .

1 is a perspective view of a vacuum cleaner according to an embodiment of the present disclosure.

Figure 2 is a cross-sectional view of a vacuum cleaner according to an embodiment of the present disclosure.

Figure 3 is an exploded perspective view of a vacuum cleaner according to an embodiment of the present disclosure.

Figure 4 is a cross-sectional view of a dust collection device according to an embodiment of the present disclosure.

Figure 5 is an exploded perspective view of a dust collection device according to an embodiment of the present disclosure.

Figure 6 is a cross-sectional perspective view of a partition wall according to an embodiment of the present disclosure.

Figure 7 is a cross-sectional view showing the flow of air inside a dust collection device according to an embodiment of the present disclosure.

Figure 8 is a longitudinal cross-sectional view showing the flow of air inside a dust collection device according to an embodiment of the present disclosure.

The embodiments described in this specification and the configurations shown in the drawings are only preferred examples of the disclosed invention, and at the time of filing this application, there may be various modifications that can replace the embodiments and drawings in this specification.

In addition, the same reference numbers or symbols shown in each drawing of this specification indicate parts or components that perform substantially the same function.

Additionally, the terms used herein are used to describe embodiments and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. The existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not excluded in advance.

In addition, terms including ordinal numbers such as “first”, “second”, etc. used in this specification may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first component may be named a second component, and similarly, the second component may also be named a first component without departing from the scope of the present invention. The term “and/or” includes any of a plurality of related stated items or a combination of a plurality of related stated items.

Meanwhile, the terms “front,” “top,” “bottom,” “left,” and “right” used in the following description are defined based on the drawings, and the shapes and positions of each component are limited by these terms. It doesn't work.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

For convenience, the portion where the suction head 10 is disposed in FIG. 1 may be defined as the front, and the portion where the handle 90 is disposed may be defined as the rear. In other words, it can be defined that air flows in from the front of the vacuum cleaner 1 and is discharged from the back.

1 is a perspective view of a vacuum cleaner according to an embodiment of the present disclosure. Figure 2 is a cross-sectional view of a vacuum cleaner according to an embodiment of the present disclosure. Figure 3 is an exploded perspective view of a vacuum cleaner according to an embodiment of the present disclosure.

The vacuum cleaner (1) includes a suction head (10) provided to suck in foreign substances such as hair from the surface being cleaned by the suction force of air, a case (20) coupled to the suction head (10), and an interior of the case (20). It may include a dust collection device 100 disposed and provided to collect foreign substances, and a main body 30 movably provided inside the case 20.

The suction head 10 is provided to move on the surface to be cleaned and suck in foreign substances such as dust present on the surface to be cleaned. The suction head 10 may include a head assembly 11 and a neck portion 12.

An air flow path may be formed inside the head assembly 11. The air flow path formed inside the head assembly 11 may communicate with the dust collection device 100 through the neck portion 12. External air and foreign substances introduced through the head assembly 11 may move into the inside of the case 20 through the neck portion 12.

The neck portion 12 may be connected to the lower end of the case 20. The neck portion 12 may be rotatably coupled to the head assembly 11. As the neck portion 12 rotates relative to the head assembly 11, the head assembly 11 may rotate relative to the case 20 connected to the neck portion 12. Accordingly, the degree of freedom of operation of the vacuum cleaner 1 can be improved.

Case 20 may form part of the exterior of the vacuum cleaner 1. Case 20 may be mounted on suction head 10. Case 20 may include a hollow 21. The dust collection device 100 and/or the main body 30 may be inserted into the hollow 21.

The main body 30 may be slidably coupled to the case 20.

The main body 30 may include an extension portion 31 that forms part of the outer shape of the vacuum cleaner 1. A space may be formed inside the extension portion 31 to accommodate an electric wire extending toward the operation switch 91.

A handle 90 may be disposed at the rear end of the extension portion 31. The handle 90 may be disposed on the upper part of the main body 30. The handle 90 allows the user to push or pull the suction head 10 while holding the handle 90 when using the vacuum cleaner 1.

The handle 90 may be provided with an operation switch 91 to control the operation of the vacuum cleaner. The operation switch 91 is provided to receive a command for operating the vacuum cleaner 1 from the user. The operation switch 91 may be disposed adjacent to the handle 90 so that the user can operate it while moving the vacuum cleaner 1 when cleaning.

The main body 30 may include a battery mounting portion 32. A battery 33 may be installed in the battery mounting portion 32. The battery 33 may be provided as one or two or more. The battery mounting portion 32 may be located inside the case 20.

The main body 30 may be provided with a fan motor unit 40 configured to generate suction force necessary to suck in foreign substances on the surface to be cleaned. The fan motor unit 40 may be configured to introduce external air through the suction head 10 and pass through the dust collection device 100. The fan motor unit 40 may be placed inside the case 20 while being mounted on the main body 30. The fan motor unit 40 may include a fan 41 that generates air flow and a fan motor 42 that provides driving force to the fan 41.

Due to the suction power of the fan 41, air containing foreign substances may be introduced into the interior of the cleaner 1 through the suction head 10. Afterwards, it passes through the dust collection device 100, moves to the fan motor case 45, and can be discharged to the outside of the cleaner 1 through the fan motor exhaust port 43 and the exhaust port (not shown) of the case 20.

The dust collection device 100 may include a first dust collection unit 200 and a second dust collection unit 300. Air passing through the first dust collection unit 200 may move to the second dust collection unit 300. The second dust collection unit 300 may be disposed downstream of the first dust collection unit 200. The first dust collection unit 200 may be connected to the suction head 10.

The fan motor case 45 may be combined with the dust collection device 100. The fan motor case 45 may be placed at the rear of the housing 110. A fan motor filter 46 may be installed inside the fan motor case 45.

The fan motor filter 46 may be provided to further filter foreign substances in the air before flowing into the fan motor unit 40. The fan motor filter 46 may be placed in front of the fan motor unit 40. The fan motor filter 46 may be provided as a mesh member.

The air that has passed the fan motor filter 46 may pass through the fan motor unit 40 and then be discharged to the outside of the cleaner (1).

According to the above-described configuration, when the cleaner 1 according to an embodiment of the present disclosure performs a cleaning operation, the air containing foreign substances introduced from the suction head 10 is filtered by the filtering device 201 of the first dust collection unit 200. ) can be primarily filtered. Thereafter, the air moving to the second dust collection unit 300 may be secondarily filtered. Afterwards, it passes through the fan motor filter 46, is thirdly filtered, and then passes through the fan motor unit 40. Air passing through the fan motor unit 40 may be discharged to the outside of the cleaner 1 through the fan motor exhaust port 41 and the exhaust port (not shown) of the case 20.

Hereinafter, the dust collection device 100 will be described in detail.

Figure 4 is a cross-sectional view of a dust collection device according to an embodiment of the present disclosure. Figure 5 is an exploded perspective view of a dust collection device according to an embodiment of the present disclosure.

Dust collection device 100 may include a housing 110. Housing 110 may include an inlet 111 and an outlet 112. Air introduced into the suction head 10 may flow into the housing 110 through the inlet 111. Air may be discharged to the outside of the housing 110 through the outlet 112.

The outlet 112 may be disposed from the inlet 111 toward the first direction A. The first direction (A) may be a direction from the front to the rear. The first direction A may be a direction from the suction head 10 toward the handle 90. The first direction (A) may be a straight line. The outlet 112 and the inlet 111 are arranged in a straight line, so that the dust collection device 100 can be implemented as slim.

Meanwhile, the second direction (B) may be opposite to the first direction (A). The second direction (B) may be a direction from the rear to the front. The second direction (B) may be a straight line.

The first dust collection unit 200 may be connected to the suction head 10. Air introduced through the suction head 10 may pass through the filtering device 201 of the first dust collection unit 200. The filtering device 201 may be provided as a mesh member. The first dust collection chamber 202 can collect filtered foreign substances when air introduced through the suction head 10 passes through the filtering device 201.

Air passing through the first dust collection unit 200 may move to the second dust collection unit 300. The second dust collection unit 300 may include a guide wall 360 that guides air that has passed through the first dust collection unit 200. The guide wall 360 may include a guide wall inlet 363 through which air passing through the first dust collection unit 200 flows.

The air flowing into the second dust collection unit 300 through the guide wall inlet 363 may be secondarily filtered by the centrifugal force of the rotating body 310. Foreign substances filtered by the rotating body 310 may be collected in the second dust collection chamber 380.

The air filtered in the second dust collection unit 300 may be discharged to the outside of the housing 110 through the outlet 112. Air discharged to the outside of the housing 110 may move toward the fan motor filter 46.

Meanwhile, in this drawing, the dust collection device 100 is shown as an example including a first dust collection unit 200 and a second dust collection unit 300, but the present disclosure is not limited thereto. For example, the dust collection device 100 may include only the second dust collection unit 300. Alternatively, the first dust collection unit 200 of the dust collection device 100 may be implemented in a configuration other than that shown in this drawing.

Hereinafter, the second dust collection unit 300 will be described in detail.

The second dust collection unit 300 may include a rotating body 310. The rotating body 310 may be provided to be rotatable inside the housing 110.

The rotating body 310 may be disposed between the inlet 111 and the outlet 112 of the housing 110. The rotating body 310 may be disposed between the guide wall inlet 363 and the through hole 334 of the second dust collection unit 300.

When the rotating body 310 rotates, air containing foreign substances introduced into the housing 110 may move to the outside of the rotating body 310 by centrifugal force. Foreign matter moving to the outside of the rotating body 310 may be collected in the second dust collection chamber 380.

The rotating body 310 may include blades 311. The blade 311 may include a plurality of wings 312. The plurality of wings 312 may be continuously arranged along the circumferential direction of the blade 311. A channel for the flow of air containing foreign substances may be formed between the plurality of wings 312.

A blade filter (not shown) may be provided outside the blade 311. A blade filter (not shown) is provided to surround the blade 311 and can filter the air.

In this drawing, the rotating body 310 is shown as an example of a blade 311, but the present disclosure is not limited to this. For example, the rotating body 310 may be provided as a rotatable filter. That is, the rotating body 310 can be implemented in various shapes as long as it is rotatable.

The second dust collection unit 300 may include a rotating motor 321. The rotating body motor 321 may be provided to generate power to rotate the rotating body 310. The rotary motor 321 may have a rotation axis extending approximately in the vertical direction.

The second dust collection unit 300 may include a rotating motor case 333. The rotary motor case 333 may be provided to protect the rotary motor 321. The rotary motor case 333 can prevent foreign substances from flowing into the rotary motor 321.

The rotary motor case 333 can accommodate at least a portion of the rotary motor 321. The rotating motor case 333 may accommodate at least a portion of the connecting shaft 322 connecting the rotating motor 321 and the rotating body 310.

Meanwhile, in this drawing, the rotating motor 321 is shown as an example disposed outside the housing 110, but the present disclosure is not limited to this. For example, the entire rotary motor 321 may be accommodated in the rotary motor case 333. The rotating motor 321 may be placed inside the housing 110.

The rotating motor case 333 may be seated in the outlet 112 of the housing 110 and disposed inside the housing 110. The rotating motor case 333 may cover the outlet 112 of the housing 110.

The rotating motor case 333 may be arranged to penetrate the outlet 112 of the housing 110.

The rotating motor case 333 may include a through hole 334. The through hole 334 may penetrate the outlet 112 of the housing 110. Air inside the housing 110 may be discharged to the outside of the housing 110 through the through hole 334.

The through hole 334 may be formed to penetrate from one end (333a) of the rotary motor case 333 to the other end.

The through hole 334 may include a first opening 334a and a second opening 334b located opposite the first opening 334a. The through hole 334 may extend from the first opening 334a to the second opening 334b.

The first opening 334a may be one end of the through hole 334. The first opening 334a may be formed at an end of the rotating motor case 333 in the second direction B. The first opening 334a may be a point where air inside the housing 110 flows into the rotary motor case 333.

The rotating motor case 333 may be disposed inside the partition wall 350. The first opening 334a of the rotating motor case 333 may be disposed from the partition wall 350 toward the center of the housing 110.

The rotating motor case 333 may include an inclined surface 335. The inclined surface 335 may be provided to surround the first opening 334a. The inclined surface 335 may be disposed adjacent to the first opening 334a.

The inclined surface 335 may be disposed inside the partition wall 350. The inclined surface 335 may be arranged to face the center of the housing 110 from the partition wall 350 .

The inclined surface 335 may be inclined toward the partition wall 350 in the first direction A. The inclined surface 335 may be inclined in the first direction A toward a direction opposite to the center of the housing 110.

The second dust collection unit 300 may include a partition wall 350. The partition wall 350 may be provided inside the housing 110.

The partition 350 may be disposed between the housing 110 and the rotating body 310. The partition wall 350 may be spaced inwardly from the housing 110 and may be spaced outward from the rotating body 310 .

The partition wall 350 may be provided to form flow paths P1 and P2. A first flow path P1 may be formed between the partition wall 350 and the rotating body 310. A second flow path P2 may be formed between the partition wall 350 and the housing 110.

The first flow path P1 and the second flow path P2 may be partitioned by a partition wall 350 . The first flow path (P1) and the second flow path (P2) may be connected at one end (351) and/or the other end (352) of the partition wall (350). The first flow path (P1) and the second flow path (P2) will be described later.

The partition wall 350 may be disposed between the inlet 111 and the outlet 112 of the housing 110. The partition wall 350 may be disposed between the guide wall inlet 363 and the through hole 334 of the second dust collection unit 300.

The partition wall 350 may extend between the guide wall inlet 363 and the through hole 334. The partition wall 350 may extend along the first direction (A).

The partition 350 may include one end 351 disposed toward the first direction A and the other end 352 disposed opposite to the one end 351. The other end 352 of the partition wall 350 may be disposed toward the second direction (B).

The partition wall 350 may extend along the circumference of the housing 110 . The partition wall 350 may have a cylindrical shape with a hollow interior.

The partition wall 350 may include a support protrusion 335. The support protrusion 335 may be provided to support the partition 350 inside the housing 110 .

The support protrusion 335 may be provided on the outer peripheral surface 354 of the partition wall 350. The support protrusion 335 may be provided to contact the inner peripheral surface of the housing 110. A plurality of support protrusions 335 may be provided.

The second dust collection unit 300 may include a guide wall 360. The guide wall 360 may be provided inside the housing 110. The guide wall 360 may be disposed between the first dust collection unit 200 and the partition wall 350.

Guide wall 360 may include a guide wall inlet 363. Air that has passed through the first dust collection unit 200 may flow into the second dust collection unit 300 through the guide wall inlet 363.

The guide wall 360 may be provided to guide air introduced into the second dust collection unit 300. The guide wall 360 may guide air to move into the first flow path P1. The guide wall 360 may guide air toward the first direction (A).

The guide wall 360 may extend in the first direction (A). The guide wall 360 may extend toward the partition wall 350.

The guide wall 360 may include one end 361 of the guide wall disposed toward the first direction A and the other end 362 of the guide wall disposed opposite to the one end of the guide wall 361. The other end of the guide wall 362 may be disposed toward the second direction (B).

The guide wall 360 may be disposed inside the partition wall 350. The guide wall 360 may be disposed from the partition wall 350 toward the center of the housing 110. Air introduced by the guide wall 360 may move to the first flow path P1 formed inside the partition wall 350.

The guide wall 360 may be spaced apart from the partition wall 350. A re-inlet 365 may be formed between the guide wall 360 and the partition wall 350. The re-inlet 365 may be provided so that air that has passed through the second flow path (P2) can move back to the first flow path (P1).

The partition wall 350 and the guide wall 360 may be connected. The connection portion 370 may be provided to connect the partition wall 350 and the guide wall 360. The partition wall 350 and the guide wall 360 may be formed integrally.

The connection portion 370 may include a radiating rib 371. The radiating rib 371 may extend along the radial direction of the partition wall 350.

The radiating rib 371 may be provided to face from the guide wall 360 to the partition wall 350. The radiating rib 371 may extend from the center of the partition wall 350 to the inner peripheral surface 353 of the partition wall 350. A plurality of radiating ribs 371 may be provided.

The connection portion 370 may include an annular rib 372. The annular rib 372 may be provided to connect a plurality of radiating ribs 371. A plurality of annular ribs 372 may be provided.

A seating groove 373 may be formed in the center of the connection portion 370. The seating groove 373 may be formed by being depressed toward the bottom. One end of the rotating body 310 may be seated in the seating groove 373. The seating groove 373 can reduce vibration and noise caused by rotation of the rotating body by accommodating a portion of the rotating body 310.

The other end 352 of the partition wall 350 may be disposed downstream of the guide wall end 361 of the guide wall 360 in the second direction B. The other end 352 may be disposed toward the second direction B from the guide wall end 361.

The second dust collection unit 300 may include a second dust collection chamber 380. The second dust collection chamber 380 may be provided to accommodate foreign substances inside the housing 110. The second dust collection chamber 380 may be disposed from the partition 350 toward the second direction B.

The second dust collection chamber 380 may be a space formed by the housing 110. The second dust collection chamber 380 may include a first side wall 381 and a second side wall 382 facing the first side wall 381. The first side wall 381 may be the housing 110. The second side wall 382 may be a guide wall 360. The second dust collection chamber 380 may be a space formed between the housing 110 and the guide wall 360.

The second dust collection chamber 380 may include a bottom surface 383 connecting the first side wall 381 and the second side wall 382. The bottom surface 383 may be the housing 110. The housing 110 may include a first side wall 381 and a bottom surface 383 bent from the first side wall 381 to form the second dust collection chamber 380.

However, the present disclosure is not limited to this, and the second dust collection chamber 380 may be implemented in various ways. For example, both the first side wall 381 and the second side wall 382 of the second dust collection chamber 380 may be formed by the housing 110. Alternatively, the second dust collection chamber 380 may be formed by a separate structure other than the housing 110.

Figure 7 is a cross-sectional view showing the flow of air inside a dust collection device according to an embodiment of the present disclosure. Figure 8 is a longitudinal cross-sectional view showing the flow of air inside a dust collection device according to an embodiment of the present disclosure.

Air may be introduced through the guide wall inlet 363. Air may flow in the first direction A along the guide wall 360 and move along the first flow path P1 formed between the partition wall 350 and the rotating body 310. The guide wall 360 may guide air to the first flow path P1.

The air moving into the first flow path P1 may move in the first direction A while rotating along the inner peripheral surface of the partition wall 350 due to centrifugal force resulting from the rotation of the rotating body 310. Air can move up to one end (351) of the partition wall (350).

The first flow path (P1) and the second flow path (P2) may be connected at one end 351 of the partition wall 350. Air that has passed through the first flow path (P1) may move to the second flow path (P2) by centrifugal force.

Air may move in the second direction (B) along the second flow path (P2) formed between the partition wall 350 and the housing 110. At this time, foreign substances in the air may fall into the second dust collection chamber 380 by gravity. Foreign substances may be contained in the second dust collection chamber 380.

The filtered air can move to the other end 352 of the partition wall 350. At the other end 352 of the partition wall 350, the second flow path P2 and the first flow path P1 may be connected again. Air that has passed through the second flow path (P2) can move back to the first flow path (P1) through the re-inlet 365. Thereafter, it may be discharged to the outside of the housing 110 through the through hole 334 of the rotary motor case 333.

Meanwhile, one end 351 of the partition 350 may be disposed on the downstream side of the through hole 334 in the first direction A. Specifically, one end 351 of the partition 350 may be disposed on the downstream side of the first opening 334a in the first direction A. Accordingly, foreign substances flowing along the first flow path P1 can be prevented from flowing into the first opening 334a. That is, foreign substances rotate along the inner peripheral surface of the partition 350 by centrifugal force and move in the first direction (A), thereby preventing foreign substances from flowing into the first opening 334a.

In addition, since the rotating motor case 333 includes an inclined surface 335, foreign matter passing through the first flow path (P1) moves in the first direction (A) along the inclined surface 335 and enters the second flow path (P2). You can move to . The inclined surface 335 can prevent foreign substances from flowing into the through hole 334.

Meanwhile, the other end 352 of the partition wall 350 may be disposed on the downstream side of the guide wall end 361 in the second direction (B). Accordingly, it is possible to prevent foreign substances flowing along the second flow path P2 from flowing back into the first flow path P1 through the re-inlet 365. That is, foreign substances may fall into the second dust collection chamber 380 along the other end 352 of the partition wall 350.

In the above, specific embodiments are shown and described. However, it is not limited to the above-described embodiments, and those skilled in the art can make various changes without departing from the gist of the technical idea of the invention as set forth in the claims below. .

Claims

A suction head for sucking in foreign substances;

a dust collecting device communicating with the suction head; and

It includes a fan provided to generate suction force inside the dust collection device,

The dust collection device is,

a housing including an inlet and an outlet disposed from the inlet in a first direction;

a rotating body rotatably provided inside the housing;

a partition wall provided between the housing and the rotating body;

a first flow path formed between the partition wall and the rotating body and provided so that air flowing into the inlet faces the first direction; and

A second flow path is formed between the partition wall and the housing and is provided so that air flows in a second direction opposite to the first direction.
According to claim 1,

The partition wall includes an end disposed toward the first direction, and the first flow path and the second flow path are connected at the end.
According to clause 2,

The partition wall includes another end disposed opposite to the one end, and the first flow path and the second flow path are connected at the other end.
According to clause 3,

The dust collecting device further includes a guide wall extending from the inlet toward the partition wall so that air flowing into the inlet moves into the first flow path.
According to clause 4,

The guide wall includes one end of the guide wall disposed toward the first direction and the other end of the guide wall disposed opposite to the one end of the guide wall,

The other end of the partition wall is disposed on a downstream side of one end of the guide wall with respect to the second direction.
According to clause 4,

The guide wall is spaced apart from the partition wall toward the center of the housing,

The dust collecting device further includes a re-inlet port formed between the partition wall and the guide wall so that air passing through the second flow path moves to the first flow path.
According to clause 6,

The dust collection device further includes a radiating rib connecting the partition wall and the guide wall.
According to clause 4,

The dust collection device further includes a dust collection chamber disposed downstream from the other end of the partition in the second direction to accommodate foreign substances in the air that have moved into the second flow path.
According to clause 8,

The guide wall is disposed inside the housing,

The dust collection chamber is formed between the housing and the guide wall.
According to clause 2,

The dust collecting device further includes a rotary motor that provides driving force for rotating the rotary body, and a rotary motor case disposed inside the housing to protect the rotary motor,

The rotary motor case includes a through hole provided through which air passing through the first flow path moves to the outlet.
According to claim 10,

The through hole includes an opening formed at an end in the second direction, and the end of the partition is disposed downstream of the opening in the first direction.
According to claim 11,

The rotary motor case is,

A cleaner further comprising: an inclined surface disposed inside the partition wall, surrounding the opening, and inclined toward the partition wall in the first direction.
According to claim 1,

The partition wall includes a support protrusion provided on an outer circumferential surface to be supported on the housing.
According to claim 1,

The rotating body includes a blade including a plurality of wings.
According to claim 1,

A vacuum cleaner in which the inlet and the outlet are arranged in a straight line.