KR20220133159A - Cleaner - Google Patents

Abstract

The present invention relates to a cleaner. The cleaner according to one aspect comprises: a suction motor which generates suction force; a dust separation unit which separates dust from air sucked in by the suction force; a motor housing which surrounds the suction motor; a flow guide which surrounds the outside of the motor housing and guides the air discharged from the dust separation unit to the suction motor; and a body which surrounds the flow guide to form an exterior and guides the air discharged from the suction motor together with the flow guide. An objective of the present invention is to provide a cleaner in which a structure thereof is simplified and the number of parts can be reduced because one flow guide forms a suction passage and a discharge passage of the suction motor.

Description

Cleaner {Cleaner}

The present invention relates to a vacuum cleaner.

A vacuum cleaner is a device that performs cleaning by sucking or wiping dust or foreign matter in an area to be cleaned.

Such a vacuum cleaner may be divided into a manual cleaner in which a user directly moves the cleaner to perform cleaning, and an automatic cleaner in which the user performs cleaning while driving by themselves.

In addition, the manual cleaner may be classified into a canister-type cleaner, an upright-type cleaner, a handy-type cleaner, a stick-type cleaner, and the like, depending on the shape of the cleaner.

A handheld vacuum cleaner is disclosed in Korean Patent Publication No. 10-1127088 (registration date, 2012.03.08.), which is a prior document.

The handheld vacuum cleaner includes a suction tube, an airflow generator, a centrifugal separator, a power source and a handle.

In addition, the airflow generator is located in the motor housing and has a motor and fan assembly form. In addition, a pre-motor filter is provided in front of the motor, and a post-motor filter is provided in the rear of the motor.

In this case, when the filter is used for a long time, dust may accumulate on the filter, and if the filter is not cleaned, the dust accumulated on the filter acts as a flow resistance, thereby reducing suction performance.

However, in the case of the prior literature, since the pre-motor filter is located between the airflow generator and the centrifugal separator, the post-motor filter is surrounded by the outer housing. have.

In addition, since a structure for guiding the air discharged from the centrifugal separator to the motor and a structure for guiding the air passing through the motor to the post-motor filter are separate, the number of parts increases and the structure is complicated.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cleaner in which a single flow guide forms a suction flow path and an exhaust flow path of a suction motor, thereby simplifying the structure and reducing the number of parts.

Another object of the present invention is to provide a cleaner in which a width of an air flow path for flowing to a suction motor can be secured while a product is made compact.

Another object of the present invention is to provide a cleaner in which the deformation of the body forming the exterior can be limited.

Another object of the present invention is to provide a vacuum cleaner in which a filter mechanism and a pre-filter can be separated.

A vacuum cleaner of the present invention for achieving the above object includes a suction motor generating a suction force, a dust separation unit separating dust from air sucked by the suction force, a motor housing surrounding the suction motor, and the A flow guide that surrounds the outside of the motor housing and guides the air discharged from the dust separation unit to the suction motor, and the air discharged from the suction motor together with the flow guide to form an exterior surrounding the flow guide Includes a body that guides.

In this embodiment, a first air flow path providing a suction flow path through which air is sucked into the suction motor may be formed between the inner circumferential surface of the flow guide and the motor housing.

In addition, in this embodiment, a second air flow path providing an exhaust flow path through which the air discharged from the suction motor is exhausted is formed between the outer circumferential surface of the flow guide and the body.

The flow guide may include a guide body having upper and lower sides open.

The guide body may be provided with a flow path forming wall that protrudes outwardly and forms a part of the first air flow path.

The flow path forming wall may be spaced apart from the inner circumferential surface of the body. Reinforcing ribs extending toward the body may be provided on the flow path forming wall to limit deformation of the body when an external force is applied to the body.

In order to prevent foreign substances from being introduced into the suction motor, the cleaner of the present embodiment may further include a pre-filter accommodated in the guide body and disposed to surround the motor housing.

The suction motor may include an impeller that rotates.

The suction motor may be disposed such that the impeller is positioned above the suction motor to enable the separation of the pre-filter, and the pre-filter may be disposed to cover the impeller of the suction motor.

A filter support for supporting the pre-filter may be provided on an inner circumferential surface of the guide body.

The motor housing may include a filter support for supporting the pre-filter.

The filter mechanism may further include a filter mechanism for filtering the air discharged from the suction motor, and the filter mechanism may press the pre-filter to prevent movement of the pre-filter.

The filter mechanism may include a filter for filtering the air discharged from the suction motor, and a filter frame for accommodating the filter.

In a state in which the filter frame is inserted into the body and the flow guide, the filter frame may be fixed to the flow guide.

In order to fix the filter frame and the flow guide, a fixing rib may be formed on an outer circumferential surface of the flow guide, and a rib receiving portion in which the fixing rib is accommodated may be provided in the filter frame.

A portion of the flow guide may be accommodated in the filter frame while the filter frame is fixed to the flow guide.

The filter frame may be provided with an inner sealing member for preventing air leakage between the outer circumferential surface of the flow guide and the inner circumferential surface of the filter frame.

The inner sealing member may be seated on the upper end of the flow guide.

The motor housing includes an upper motor housing that surrounds the suction motor and forms the first air flow path together with the flow guide, is coupled to the upper motor housing, and directs the air discharged from the suction motor to the second air flow path. and a lower motor housing having a guiding air guide.

The flow guide may be fastened to the motor housing by a fastening member.

A cleaner according to another aspect includes: a suction unit having a longitudinal axis; a suction motor generating a suction force for sucking air through the suction unit; a dust separation unit located below the suction motor and separating dust from the air sucked by the suction force; an air outlet provided above the suction motor in a state in which the longitudinal axis of the suction unit is horizontal; and a flow guide for guiding the air separated by the dust separation unit upwardly toward the suction motor and upwardly guiding the air passing through the suction motor toward the air outlet.

The flow guide may be disposed to surround at least a portion of the suction motor. An inner circumferential surface of the flow guide guides air upward from the dust separation unit, and an outer circumferential surface of the flow guide guides air passing through the suction motor upward.

According to the proposed invention, since the inner circumferential surface of the flow guide forms the suction flow path and the outer circumferential surface of the flow guide forms the exhaust flow path, it is an object to provide a cleaner whose structure is simplified.

In addition, according to the present invention, since the flow path forming wall forming the first air flow path protrudes outward from the flow guide, the width of the first air flow path for flowing to the suction motor is secured, thereby improving air flow performance.

In addition, according to the present invention, as the reinforcing ribs are provided on the channel forming wall, it is possible to prevent the body from being deformed toward the channel forming wall.

In addition, according to the present invention, since the filter mechanism can be separated from the body, there is an advantage that the filter can be cleaned.

In addition, according to the present invention, since the suction motor is positioned so that the impeller is located on the upper side of the suction motor, the pre-filter can cover the upper side of the suction motor, so that when the filter mechanism is separated, it can be separated into the upper side of the pre-filter .

1 is a perspective view of a cleaner according to an embodiment of the present invention;
2 is a side view of a cleaner according to an embodiment of the present invention;
3 is a plan view of a cleaner according to an embodiment of the present invention;
4 is a perspective view of a cleaner according to an embodiment of the present invention as viewed from the lower side;
5 is a longitudinal cross-sectional view of a cleaner according to an embodiment of the present invention.
6 is a view showing a state in which the filter mechanism is separated from the body according to an embodiment of the present invention.
7 is a view of the lower side of the filter mechanism according to an embodiment of the present invention.
Fig. 8 is an exploded perspective view of the filter mechanism of Fig. 7;
Fig. 9 is a cross-sectional perspective view of the filter mechanism of Fig. 7;
10 is a cross-sectional view showing a state in which the filter mechanism according to an embodiment of the present invention is coupled to the body.
11 is a perspective view of a filter cover according to an embodiment of the present invention.
12 is a cross-sectional view showing a state in which the inner frame is coupled to the filter cover of FIG. 11;
13 is a perspective view of a flow guide according to an embodiment of the present invention.
14 is a plan view of a flow guide according to an embodiment of the present invention.
15 is a view showing a state before the filter mechanism is coupled to the flow guide according to an embodiment of the present invention.
16 is a view showing a state in which the filter mechanism is coupled to the flow guide according to an embodiment of the present invention.
17 is a view showing the structure of the motor housing and the second body according to an embodiment of the present invention.
18 is a view showing an air flow in a cleaner according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but between each component another component It will be understood that may also be "connected", "coupled" or "connected".

1 is a perspective view of a cleaner according to an embodiment of the present invention, FIG. 2 is a side view of the cleaner according to an embodiment of the present invention, FIG. 3 is a plan view of the cleaner according to an embodiment of the present invention, and FIG. 4 is a perspective view of the cleaner according to an embodiment of the present invention viewed from the lower side, and FIG. 5 is a longitudinal cross-sectional view of the cleaner according to an embodiment of the present invention.

1 to 5 , the cleaner 1 according to an embodiment of the present invention may include a body 2 .

The cleaner 1 may further include a suction unit 5 coupled to the front of the main body 2 . The suction unit 5 may guide air containing dust to the body 2 .

The cleaner 1 may further include a handle part 3 coupled to the main body 2 . The handle part 3 may be located opposite the suction part 5 in the main body 2 .

That is, the main body 2 may be disposed between the suction part 5 and the handle part 3 .

The main body 2 may include a first body 10 and a second body 12 positioned above the first body 10 . The first body 10 and the second body 12 may be directly coupled or indirectly coupled by an intermediate member.

The first body 10 and the second body 12 are not limited, but may be formed in a cylindrical shape.

And, each of the first body 10 and the second body 12 has an upper side and a lower side opening. That is, each of the bodies 10 and 12 may include an upper opening and a lower opening.

In addition, the suction unit 5 may be coupled to the main body 2 so that the central portion of the suction unit 5 is approximately located at the boundary between the first body 10 and the second body 12 . .

The body 2 may further include a dust separation unit for separating dust from the air sucked through the suction unit 5 .

The dust separation unit may include, for example, a first cyclone unit 110 capable of separating dust by cyclone flow. In this case, the first body 10 includes the first cyclone unit 110 .

Air and dust sucked in through the suction part 5 are spirally flowed along the inner circumferential surface of the first cyclone part 110 .

The axis of the cyclone flow of the first cyclone unit 110 may extend in the vertical direction.

The dust separation unit may further include a second cyclone unit 130 for separating again dust from the air discharged from the first cyclone unit 110 . In this case, the second cyclone part 130 may be located inside the first cyclone part 110 so that the size of the dust separation part is minimized. The second cyclone unit 130 may include a plurality of cyclone bodies arranged in parallel.

As another example, the dust separation unit may have a single cyclone unit, and even in this case, the axis of the cyclone flow may extend in the vertical direction.

The first body 10 serves as a dust container for storing the dust separated from each of the cyclone units 110 and 130 .

The main body 2 may further include a body cover 16 for opening and closing the lower side of the first body 10 . The body cover 16 may open and close the first body 10 by a rotation operation.

At least a portion of the second cyclone unit 130 may be located in the first body 10 .

A dust storage guide 124 for guiding storage of the dust separated from the second cyclone unit 130 may be disposed in the first body 10 . The dust storage guide 124 may be coupled to the lower side of the second cyclone unit 130 and may be in contact with the upper surface of the body cover 16 .

The dust storage guide 124 includes a first dust storage unit 121 in which the dust separated from the first cyclone unit 110 is stored, and the second cyclone space inside the first body 10 . It may be divided into a second dust storage unit 123 in which the dust separated from the unit 130 is stored.

The inner space of the dust storage guide 124 is the second dust storage unit 123 , and the space between the dust storage guide 124 and the first body 10 is the first dust storage unit 121 .

The body cover 16 may open and close the first dust storage unit 121 and the second dust storage unit 123 together.

The cleaner 1 may further include a suction motor 20 for generating suction force and a battery 40 for supplying power to the suction motor 20 .

The suction motor 20 may be located in the second body 12 . In addition, at least a portion of the suction motor 20 may be located above the dust separation unit. Accordingly, the suction motor 20 is located above the first body 10 .

The suction motor 20 may communicate with the outlet of the second cyclone unit 130 .

To this end, the main body 2 may further include a discharge guide 28 connected to the second cyclone unit 130 and a flow guide 22 communicating with the discharge guide 28 .

For example, the discharge guide 28 is located above the second cyclone unit 130 , and the flow guide 22 is located above the discharge guide 28 .

And, at least a part of the suction motor 20 is located inside the flow guide 22 .

Accordingly, the axis of the cyclone flow of the dust separation unit may pass through the suction motor 20 .

When the suction motor 20 is located on the upper side of the second cyclone unit 130, the air discharged from the second cyclone unit 130 can flow directly to the suction motor 20 side. A flow path between the dust separation unit and the suction motor 20 may be minimized.

The suction motor 20 may include an impeller 200 that rotates. The impeller 200 may be connected to the shaft 202 . The shaft 202 is arranged to extend in the vertical direction.

In addition, the suction motor 20 may be disposed such that the impeller 200 is positioned on the upper side of the suction motor 20 . In this case, the air may flow from the upper side to the lower side of the suction motor 20 by the impeller 200 .

An extension line of the shaft 202 (which may also be referred to as a rotation shaft of the impeller 200 ) may pass through the first body 10 . In this case, the axis of rotation of the impeller 200 and the axis of cyclone flow generated in the first cyclone unit 110 of the dust separation unit may be positioned on the same line.

According to the present invention, the path through which the air discharged from the dust separation unit, that is, the air discharged upward from the second cyclone unit 130, flows toward the suction motor 20 is reduced, and the change in the direction of the air is reduced. This has the advantage of reducing the flow loss of air.

When the flow loss of air is reduced, the suction force may be increased and the use time of the battery 40 for supplying power to the suction motor 20 may be increased.

The cleaner 1 may further include an upper motor housing 26 covering an upper portion of the suction motor 20 and a lower motor housing 27 covering a lower portion of the suction motor 20 . . The suction motor 20 may be accommodated in each motor housing 26 , and the flow guide 22 may be disposed to surround the upper motor housing 26 .

At least a portion of the flow guide 22 may be spaced apart from the upper motor housing 26 . In addition, at least a portion of the flow guide 22 may be spaced apart from the second body 12 .

Accordingly, the inner circumferential surface of the flow guide 22 and the outer circumferential surface of the upper motor housing 26 form a first air flow path 232 , and the outer circumferential surface of the flow guide 22 and the inner circumferential surface of the second body 12 . forms the second air flow path 234 .

According to the present invention, the single flow guide 22 forms the first air flow path 232 and the second air flow path 234, and the number of parts for forming each air flow path can be reduced, thereby simplifying the structure. have.

The first air passage 232 serves as an intake passage, and the second air passage 234 serves as an exhaust passage.

The air discharged from the second cyclone unit 130 flows to the suction motor 20 along the first air flow path 232, and the air discharged from the suction motor 20 flows into the second air flow path ( 234) and then discharged to the outside. Accordingly, the second air flow path 234 serves as an exhaust flow path.

The handle unit 3 may include a handle 30 for gripping by a user, and a battery housing 410 disposed below the handle 30 .

The handle 30 may be located at the rear of the suction motor 20 .

When defining the direction, the direction in which the suction unit 5 is positioned in the cleaner 1 with respect to the suction motor 20 is the front, and the direction in which the handle 30 is positioned is the rear.

The battery 40 may be located at the rear of the first body 10 . Accordingly, the suction motor 20 and the battery 40 are disposed so as not to overlap in the vertical direction, and may be disposed at different heights.

According to the present invention as described above, based on the handle 30 , a heavy suction motor 20 is positioned in front of the handle 30 , and a heavy battery 40 is installed in the handle 30 . Since it is located below, the weight is evenly distributed throughout the cleaner 1 . When the user holds the handle 30 and cleans, it is possible to prevent strain on the user's wrist. That is, the heavy weight components are dispersedly disposed on the front and rear sides of the cleaner 1 , and since they are disposed at different heights, it is possible to prevent the center of gravity of the cleaner 1 from being tilted to either side.

Since the battery 40 is located below the handle 30 and the suction motor 20 is located at the front of the handle 30 , there is no configuration above the handle 30 . That is, the upper surface of the handle 30 forms a partial appearance of the upper surface of the cleaner 1 .

Accordingly, it is possible to prevent one component of the cleaner 1 from coming into contact with the user's arm in the process of holding and using the handle 30 .

The handle 30 includes a first extension 310 that extends in the vertical direction and can be grasped by a user, and a second extension that extends from the upper side of the first extension 310 toward the suction motor 20 . It may include a unit 320 . At least a part of the second extension part 320 may extend in a horizontal direction.

The first extension part 310 is provided for preventing the user's hand from moving in the longitudinal direction (up and down direction in FIG. 2 ) of the first extension part 310 while holding the first extension part 310 . A movement limiter 312 may be provided. The movement limiting part 312 may extend from the first extension part 310 toward the suction part 5 .

The movement limiting part 312 is disposed to be spaced apart from the second extension part 320 . Accordingly, some fingers are positioned above the movement limiting part 312 while gripping the first extension part 310 , and the remaining fingers are positioned below the movement limiting part 312 .

For example, the movement limiter 312 may be positioned between the index finger and the middle finger.

According to this arrangement, the longitudinal axis A1 of the suction unit 5 may pass through the user's wrist in a state in which the user grips the first extension unit 310 .

When the longitudinal axis A1 of the suction unit 5 passes through the user's wrist, the longitudinal axis A1 of the suction unit 5 is substantially the same as the extension direction of the user's arm in a state in which the user's arm is extended. can be side by side with Accordingly, in such a state, there is an advantage in that the user's force required when the user holds the handle 30 and pushes or pulls the cleaner 1 is minimized.

The handle 30 may include a manipulation unit 326 . For example, the manipulation unit 326 may be located on an inclined surface formed in the second extension unit 320 . An on command and an off command of the cleaner (suction motor) may be input through the manipulation unit 326 .

The manipulation unit 326 may be disposed to face the user. With respect to the handle 30 , the manipulation unit 326 may be located opposite the movement limiting unit 312 .

The manipulation unit 316 is positioned higher than the movement limiting unit 312 . Accordingly, the user can easily manipulate the manipulation unit 326 with the thumb while holding the first extension unit 310 .

In addition, since the manipulation unit 326 is located at a position deviating from the first extension unit 310, when cleaning is performed while the first extension unit 310 is gripped, the manipulation unit 326 is unintentionally. can be prevented from being manipulated.

The second extension part 320 may be provided with a display part 322 for displaying an operating state. The display part 322 may be located on the upper surface of the second extension part 320 , for example. Accordingly, the user can easily check the display unit 322 located on the upper surface of the second extension unit 320 while cleaning. The display unit 322 may display, for example, the remaining amount of the battery 40 and the strength of the suction motor.

The display unit 322 is not limited, but may include a plurality of light emitting units. The plurality of light emitting units may be arranged to be spaced apart from each other in the longitudinal direction of the second extension unit 320 .

The battery housing 410 may be positioned below the first extension 310 .

The battery 40 may be detachably coupled to the battery housing 410 . For example, the battery 40 may be inserted into the battery housing 410 from below the battery housing 410 .

The rear surface of the battery housing 410 and the rear surface of the first extension part 310 may form a continuous surface. Accordingly, the battery housing 410 and the first extension 310 may have a sense of unity.

Meanwhile, referring to FIG. 3 , the cleaner 1 may further include a filter device 50 having an air outlet 522 through which air passing through the suction motor 20 is discharged. The air outlet 522 may include, for example, a plurality of openings, and the plurality of openings may be arranged in a circumferential direction. Accordingly, the air outlet 522 may be arranged in a ring shape.

The filter mechanism 50 may be detachably coupled to the upper side of the main body 2 . That is, the filter mechanism 50 may be detachably coupled to the second body 12 . In a state in which the longitudinal axis A1 of the suction unit 5 is horizontal, the air outlet 522 is located above the suction motor 20 .

A part of the filter device 50 is positioned outside the second body 12 in a state where the filter device 50 is coupled to the body 2 . Accordingly, a part of the filter mechanism 50 is drawn into the main body 2 through the upper opening of the main body 2 , and the other part protrudes out of the main body 2 .

The height of the body 2 may be substantially equal to the height of the handle 30 . Accordingly, the filter mechanism 50 protrudes upward from the main body 2 so that the user can easily remove the filter mechanism 50 while holding the filter mechanism 50 .

The air outlet 522 is positioned above the filter device 50 in a state where the filter device 50 is coupled to the body 2 . Accordingly, the air discharged from the suction motor 20 is discharged above the main body 2 .

According to the present embodiment, in the process of cleaning using the cleaner 1 , the air discharged from the air outlet 522 may be prevented from flowing toward the user.

The main body 2 may further include a pre-filter 29 for filtering the air introduced into the suction motor 20 . The pre-filter 29 may be positioned within the flow guide 22 . In addition, the pre-filter 29 may be seated on the upper motor housing 26 and surround a portion of the upper motor housing 26 . That is, the upper motor housing 26 may include a filter support for supporting the pre-filter 29 .

In a state in which the filter mechanism 50 is mounted on the main body 2 , the filter mechanism 50 may press the pre-filter 29 to prevent movement of the pre-filter 29 .

For example, the filter mechanism 50 may press the pre-filter 29 downward. Therefore, according to the present invention, there is an advantage that the structure for fixing the pre-filter 29 is unnecessary.

6 is a view showing a state in which the filter mechanism is separated from the main body according to an embodiment of the present invention, FIG. 7 is a view from the lower side of the filter mechanism according to an embodiment of the present invention, and FIG. 8 is a view of FIG. It is an exploded perspective view of the filter mechanism, and FIG. 9 is a cross-sectional perspective view of the filter mechanism of FIG.

5 to 9 , the filter mechanism 50 may be separated from the main body 2 .

For example, the filter mechanism 50 may be separated upwardly from the main body 2 .

Since the impeller 200 is disposed above the suction motor 20 , the pre-filter 29 may be disposed to surround the upper motor housing 26 to cover the impeller 200 .

Accordingly, the pre-filter 29 may be exposed to the outside in a state in which the filter mechanism 50 is separated from the main body 2 , and accordingly, the pre-filter 29 is in a detachable state.

The pre-filter 29 may include a handle 29a. The user can separate the pre-filter 29 from the main body 2 by holding the handle 29a of the pre-filter 29 exposed to the outside and lifting the pre-filter 29 upward. Since the pre-filter 29 can be separated from the main body 2 , the user can easily clean the pre-filter 29 .

The filter mechanism 50 may further include a filter 560 for filtering the air discharged from the suction motor 20 , and a filter frame supporting the filter 560 .

The filter 560 may be, for example, a high efficiency particulate air filter (HEPA filter).

The filter 560 may be disposed to surround the flow guide 22 so that the height of the cleaner 1 is prevented from increasing while the filter mechanism 50 is coupled to the main body 2 .

That is, the filter 560 may be formed in, for example, a ring shape, and a portion of the flow guide 22 may be located in an area formed by the filter 560 .

In addition, at least a portion of the pre-filter 29 may be accommodated in an area formed by the filter 560 . That is, the filter 560 surrounds the pre-filter 29 .

The filter frame may be coupled to the flow guide 22 while being inserted between the second body 12 and the flow guide 22 .

The filter frame may include an inner frame 501 and an outer frame 540 disposed to surround the inner frame 501 .

The outer peripheral surface of the inner frame 501 and the inner peripheral surface of the outer frame 540 may be spaced apart, and the filter 560 may be positioned between the inner frame 501 and the outer frame 540 .

The filter frame may further include an exhaust grill 520 in which the air outlet 522 is formed and covers an upper side of the filter 560 , and a filter cover 570 which covers a lower side of the filter 560 . can

Specifically, the inner frame 501 may include an upper surface portion 502 and a peripheral portion 503 extending downward from the edge of the upper surface portion 502 .

The peripheral portion 503 may include a first portion 503a and a second portion 503b extending downward from the first portion 503a and having a larger diameter than the diameter of the first portion 503a. can

A seating part for seating the exhaust grill 520 between the first part 503a and the second part 503b due to the difference in diameter between the first part 503a and the second part 503b ( 506) may be formed.

The seating portion 506 is formed along the circumferential direction of the peripheral portion 503 at a position spaced downward from the upper surface portion 502 .

The exhaust grill 520 may be formed in a ring shape so that the exhaust grill 520 may be seated on the seating part 506 . In addition, the inner diameter of the exhaust grill 520 may be the same as or greater than the outer diameter of the first portion 503a of the peripheral portion 503 . In addition, an outer diameter of the seating portion 506 and an outer diameter of the second portion 503b may be greater than an inner diameter of the exhaust grill 520 .

Accordingly, in a state in which the upper surface portion 502 of the inner frame 501 and the first portion 503a of the peripheral portion 503 pass through the exhaust grill 520 , the exhaust grill 520 is mounted on the seating portion ( 506) may be seated.

The filter mechanism 50 may further include an inner decoration member 510 coupled to the edge of the inner frame 501 . The inner decoration member 510 may be formed in a ring shape.

The inner decoration member 510 is provided with a hook 512 for being coupled to the inner frame (501).

A hook coupling hole 508 for coupling the hook 512 may be formed in the inner frame 501 .

The hook coupling hole 508 may be formed in the first portion 503a of the peripheral portion 503 . In addition, a guide groove 507 for guiding the hook 512 to the hook coupling hole 508 may be formed in the first portion 503a of the peripheral portion 503 . The guide groove 507 may extend in the vertical direction.

Accordingly, when the hook 512 of the inner decoration member 510 moves along the guide groove 507 and is aligned with the hook coupling hole 508 , the hook 512 is inserted into the hook coupling hole 508 . can be

In a state in which the exhaust grill 520 is seated on the seating portion 506 of the inner frame 501 , the inner decor member 510 may be coupled to the inner frame 501 .

To this end, a guide groove 524 for providing a space in which the hook 512 of the inner decoration member 510 can move may be formed on the inner circumferential surface of the exhaust grill 520 . The guide groove 524 may extend in the vertical direction.

Accordingly, the hook 512 of the inner decoration member 510 may move along the guide groove 507 of the inner frame 501 and the guide groove 524 of the exhaust grill 520 .

In a state in which the inner decoration member 510 is coupled to the inner frame 501 , the inner decoration member 510 may be seated on the upper surface of the exhaust grill 520 .

Therefore, according to this embodiment, there is an advantage that a separate fixing means for fixing the exhaust grill 520 to the inner frame 501 is unnecessary.

The outer frame 540 may support the exhaust grill 520 . The outer frame 540 may be fixed to the exhaust grill 520 by, for example, fusion bonding while in contact with the lower surface of the exhaust grill 520 . However, it should be noted that there is no limitation in the method of fixing the exhaust grill 520 and the outer frame 540 in the present invention.

In order for the outer frame 540 to support the exhaust grill 520 , a seating groove 544 for seating the exhaust grill 520 may be formed in the outer frame 540 .

When the outer frame 540 is fixed to the exhaust grill 520, a filter accommodating space is formed between the outer frame 550 and the peripheral portion 503 of the inner frame, and the filter ( 560) can be accommodated. In a state in which the filter 560 is accommodated in the filter receiving space, the filter 560 overlaps the air outlet 522 in the vertical direction.

The filter mechanism 50 may further include an outer decoration member 550 coupled to the outer frame 540 . The outer decoration member 550 may be coupled to the outer frame 540 while surrounding a portion of the circumference of the exhaust grill 520 . In addition, the outer decoration member 550 may surround an upper portion of the outer frame 540 . A seating surface 546 for seating the lower end of the outer decoration member 550 may be formed on the outer circumferential surface of the outer frame 540 .

One or more coupling protrusions 554 for coupling to the outer frame 540 may be formed on the inner circumferential surface of the outer teco member 550 , and the one or more coupling protrusions 554 on the outer circumferential surface of the outer frame 540 . One or more coupling grooves 542 for receiving may be formed.

An anti-slip part 552 for preventing the user's hand from slipping when the user separates or combines the filter mechanism 50 may be provided on the outer peripheral surface of the outer decoration member 550 . The anti-slip part 552 may be, for example, a plurality of protrusions protruding from the outer surface of the outer decoration member 550 .

A plurality of anti-slip parts 552 may be disposed to be spaced apart from each other in a circumferential direction of the outer teco member 550 to effectively prevent the user's hand from sliding.

The filter cover 570 may be formed in a ring shape, for example, and may include an opening 574 through which air passes.

The filter cover 570 may cover the filter 560 accommodated between the outer frame 540 and the inner frame 501 .

The filter cover 570 may support the lower surface of the outer frame 540 and the lower surface of the inner frame 501 , and the outer frame 540 and the inner frame 501 and each other by fusion, for example. can be combined.

The filter device (50) further includes sealing members (530, 580) for sealing the filter device (50) and the body (2) in a state in which the filter device (50) is coupled to the body (2). can do.

10 is a cross-sectional view showing a state in which the filter mechanism is coupled to the body according to an embodiment of the present invention.

9 and 10 , the sealing members 530 and 580 prevent the air in the flow guide 22 from leaking to the outside through the hook coupling hole 508 provided in the inner frame 501 . It may include an inner sealing member 530 (or a first sealing member) for preventing it.

The inner sealing member 530 may be coupled inside the peripheral portion 503 of the inner frame 501 .

Specifically, the sealing rib 504 may extend downward from the upper surface portion 502 of the inner frame 501 . The sealing rib 504 may be spaced apart from the peripheral portion 503 of the inner frame 501 . The sealing rib 504 is continuously formed in the circumferential direction of the upper surface portion 501 .

Accordingly, a space for accommodating the inner sealing member 530 is formed between the sealing rib 504 and the peripheral portion 503 of the inner frame 501, and a portion of the inner sealing member 530 is stuck in space

In a state in which the inner sealing member 530 is coupled to the inner frame 501 , the inner sealing member 530 is a lower surface of the first portion 503a of the peripheral portion 503 , the second portion 503b of the inner circumferential surface and the lower surface of the sealing rib 504 .

And, when the filter mechanism 50 is coupled to the main body 2 , the inner sealing member 530 is seated on the upper end of the flow guide 22 .

Accordingly, according to the present invention, the inner sealing member 230 is in contact with the lower surface of the first portion 503a of the peripheral portion 503 , the inner peripheral surface of the second portion 503b and the lower surface of the sealing rib 504 . Since it is seated on the upper end of the flow guide 22 in one state, the air flowing through the flow guide 22 is prevented from flowing into the hook coupling hole 508 .

In addition, air leakage into a gap between the outer circumferential surface of the flow guide 22 and the inner circumferential surface 503 of the inner frame 501 may be prevented from leaking by the inner sealing member 230 .

In order for the filter mechanism 50 to be separated from the main body 2 , a gap may be formed between the outer surface of the filter mechanism 50 and the inner peripheral surface of the second member 12 .

The sealing members 530 and 580 prevent the air of the second air passage 234 from flowing through the gap between the outer frame 540 and the second body 12 without passing through the filter 560 . It may further include an outer sealing member 580 (or a second sealing member) for preventing it.

The outer sealing member 580 may be coupled to the edge of the filter cover 570 . Although not limited, the outer sealing member 580 may be fitted to the filter cover 570 or may be integrally formed with the filter cover 570 by inserting injection.

A support surface 125 for supporting the outer sealing member 580 may be formed on an inner circumferential surface of the second member 12 . The support surface 125 may be formed by increasing the thickness of a portion of the second portion 12 .

When the filter mechanism 50 is coupled to the main body 2 , the outer sealing member 580 may be seated on the support surface 125 .

Accordingly, it is possible to prevent the air of the second air passage 234 from flowing into a gap between the outer frame 540 and the inner peripheral surface of the second member 12 .

On the other hand, when the filter mechanism 50 is coupled to the main body 2 , the outer decoration member 550 is seated on the upper side of the second body 12 of the main body 2 . Accordingly, the user can separate the filter mechanism 50 from the main body 2 by rotating the filter mechanism 50 in one direction while holding the outer decoration member 550 .

In addition, in a state in which the filter mechanism 50 is coupled to the main body 2 , a part of the filter 560 may be positioned within the main body 2 , and the other part may be positioned outside the main body 2 .

According to the present invention, since a part of the filter mechanism (50) protrudes to the outside of the main body (2), it is possible for a user to grip the filter mechanism (50), and to the outside of the main body (2) Since the filter 560 may be positioned even in the protruding portion, the size of the filter 560 may be increased. Accordingly, the area of the filter 560 that can come into contact with the air is increased, so that the air purification performance can be improved.

11 is a perspective view of a filter cover according to an embodiment of the present invention, FIG. 12 is a cross-sectional view showing a state in which the inner frame is coupled to the filter cover of FIG. 11 , and FIG. 13 is a flow guide according to an embodiment of the present invention is a perspective view, and FIG. 14 is a plan view of a flow guide according to an embodiment of the present invention.

10 to 14 , the filter cover 570 includes an inner body 571 , an outer body 572 spaced apart from the inner body 571 , the inner body 571 and the outer body It may include a connection body 573 connecting the 572 .

Each of the inner body 571 and the outer body 572 may be formed in a ring shape.

The connection body 573 may be provided with one or more openings 574 through which air passes.

A plurality of frame support ribs 575 for supporting the lower surface 509 of the inner frame 501 may be provided on the inner circumferential surface of the inner body 571 . The plurality of frame support ribs 575 may be disposed to be spaced apart from each other in the circumferential direction of the inner body 571 .

A rib coupling part 577 for coupling with the flow guide 22 may be provided on an inner circumferential surface of the inner body 571 .

The inner body 571 may include an extension portion 576 so that the rib coupling portion 577 extends downward. The extension part 576 may protrude downward from the lower surface of the inner body 571 , and the rib coupling part 577 may be provided in the extension part 576 .

Accordingly, the rib coupling portion 577 extends from the end of the frame support rib 575 in the circumferential direction, and extends downwardly.

The reason that the rib coupling portion 577 is inclined downward is that the filter mechanism 50 can be coupled and disengaged to the main body 2 in a rotational manner, and the filter mechanism 50 is separated from the main body 2 . This is to allow the filter mechanism 50 to rise in the process.

When the filter mechanism 50 rises in the process of being separated, the user can confirm that the filter mechanism 50 is being separated.

When the filter device 50 is configured to be disengaged while the filter device 50 is rotated, a rotational force must be applied to the filter device 50, so even if the filter device 50 is pulled, the main body ( 20) can be prevented. Accordingly, it is possible to prevent the filter device 50 from being unintentionally separated from the body 2 .

The rib coupling part 577 may include a slot 578 in which the fixing protrusion 229 of the flow guide 22 to be described later is accommodated. The slot 578 may be a groove or a hole.

The inner frame 501 may further include a contact portion 509a extending downward from the lower surface 509 of the inner frame 501 . The contact portion 509a may be in contact with a side surface of the frame support rib 575 in a state in which the filter cover 570 and the inner frame 501 are coupled.

The inner frame 501 may include a depression 509b formed by being depressed upward to form a rib receiving portion 579 for receiving the fixed rib 228 formed in the flow guide 22 . have.

In a state in which the inner frame 501 is coupled to the filter cover 570 , the recessed portion 509b is disposed above the coupling rib 577 to be spaced apart from the coupling rib 577 .

At this time, in the process of rotating and lowering the filter mechanism 50 , the fixed rib 228 of the flow guide 22 is attached to the rib receiving portion 579 between the recessed portion 509b and the rib engaging portion 577 . To be accommodated, the depression 509b may be formed to be inclined.

Accordingly, the rib receiving portion 579 also extends obliquely downward. The rib receiving part 579 may be understood as a space between the inner frame 501 and the filter cover 570 . That is, the fixing rib 228 of the flow guide 22 may be inserted between the inner frame 501 and the filter cover 570 .

The flow guide 22 may include a guide body 220 having upper and lower openings. The guide body 220 may include a flow path forming wall 222 for forming the first air flow path 232 through which the air discharged from the second cyclone unit 130 flows.

The flow path forming wall 222 may protrude from the guide body 222 in a radial direction.

In this case, the flow guide 22 may include a plurality of flow path forming walls 222 spaced apart in the circumferential direction so that the air can flow smoothly.

The suction motor 20 is located inside the flow guide 22. In order not to increase the size of the main body 2, the gap between the flow guide 22 and the suction motor 20 should not be large. . However, if the gap between the flow guide 22 and the suction motor 20 is not large, there is a problem in that air flow performance is deteriorated.

However, when the flow path forming wall 222 protrudes from the guide body 220 as in the present invention, the cross-sectional area of the flow path through which air can flow is sufficiently secured by the flow path forming wall 222 to improve the air flow performance. can be

The flow path forming wall 222 is configured such that the upper portion of the flow guide 22 can be accommodated inside the inner frame 501 and the flow path forming wall 222 does not interfere with the filter mechanism 50 . It is formed at a position spaced apart from the upper end of the guide 22 downward by a predetermined interval.

In addition, the outer diameter of the upper portion of the guide body 220 may be formed smaller than the inner diameter of the peripheral portion 503 of the inner frame 501 . Accordingly, when the filter mechanism 50 is coupled to the main body 2 , the upper portion of the flow guide 22 is accommodated in the filter mechanism 50 so that the inner sealing member 530 is connected to the flow guide 22 . ) can be mounted on top of the

According to the present invention, since a part of the flow guide 22 is accommodated inside the filter mechanism 50 , the increase in the height of the cleaner 1 can be minimized.

A filter support 225 for supporting the lower end of the pre-filter 29 may be provided on an inner circumferential surface of the guide body 220 . The filter support 225 may protrude from an inner circumferential surface of the guide body 220 .

A fastening part 226 for fastening with the motor housings 26 and 27 may be provided at a lower end of the guide body 220 .

The fastening part 226 of the guide body 220 may be seated on the upper motor housing 26 . In this state, the fastening member S1 may be fastened to the upper motor housing 26 after passing through the fastening part 226 from above.

The fastening member S1 may be fastened to the discharge guide 28 after passing through the upper motor housing 26 and the lower motor housing 27 . According to this structure, since a small number of fastening members can be used to assemble, there is an advantage in that the structure and the assembly method are easy.

The flow guide 22 may include a retaining rib 228 for engagement with the filter mechanism 50 . The fixing rib 22 may extend in a circumferential direction but inclinedly so that the height of the filter device 50 is changed during the rotation of the filter device 50 . In addition, a fixing protrusion 229 may be formed on a lower surface of the fixing rib 22 .

Meanwhile, reinforcing ribs 227 may be formed on the flow path forming wall 222 . The flow guide 22 is spaced apart from the inner circumferential surface of the second body 12 to form the second air flow path 234 .

The reinforcing rib 227 may extend from the flow path forming wall 222 toward the second body 12 .

As such, when the flow guide 22 is spaced apart from the inner circumferential surface of the second body 12 , when an external force is applied from the outside of the second body 12 , the second body 12 moves the flow guide 22 . ) may be deformed toward the

However, according to the present invention, as the reinforcing ribs 227 are formed on the flow path forming wall 222 , even when an external force is applied to the second body 12 , the second body 12 is formed with the reinforcing ribs 227 . ), so that the deformation of the second body 12 may be limited.

Since the channel forming wall 222 protrudes from the guide body 220 , when the reinforcing rib 227 is formed on the channel forming wall 222 , the length of the reinforcing rib 227 can be reduced. There is this.

15 is a view showing a state before the filter device according to an embodiment of the present invention is coupled to the flow guide, and FIG. 16 is a view showing a state in which the filter device according to an embodiment of the present invention is coupled to the flow guide. .

15 and 16, the coupling process of the filter mechanism 50 will be described.

A lower portion of the filter device (50) is accommodated in the second body (12) in order to couple the filter device (50) to the body (2).

The rib receiving portion 579 of the filter mechanism 50 and the fixing rib 228 may then be aligned.

When the filter mechanism 50 is rotated in this state, the fixing rib 228 is accommodated in the rib receiving portion 579 . In this case, in order for the fixing rib 228 to be easily accommodated in the rib receiving part 579 , the height of the rib receiving part 579 may be higher than the height of the fixing rib 228 .

Since the fixing rib 228 extends obliquely, the filter mechanism 50 is lowered by the fixing rib 228 during the rotation of the filter mechanism 50 .

When the fixing protrusion 229 is inserted into the slot 578 of the rib coupling part 577 while the fixing rib 228 is received in the rib receiving part 579, the filter mechanism 50 and the The coupling of the body 2, that is, coupling with the flow guide 22 is completed.

Meanwhile, in order to separate the filter mechanism 50 from the main body 2 , the filter mechanism 50 is rotated in the other direction. At this time, since the fixing rib 228 is formed to be inclined, the filter mechanism 50 is raised by the fixing rib 228 during the rotation of the filter mechanism 50 . Then, when the fixing rib 228 is removed from the rib receiving portion 579 , the coupling between the filter mechanism 50 and the main body 2 is released.

If the filter mechanism 50 is moved upward in this state, the filter mechanism 50 can be separated from the main body 2 .

17 is a view showing the structure of the motor housing and the second body according to an embodiment of the present invention.

5 and 17 , the lower motor housing 27 may be integrally formed with the second body 12 .

A through hole 273 through which air flowing along the discharge guide 28 passes may be formed in the lower motor housing 27 .

The lower motor housing 27 may support the upper motor housing 26 . In this case, a first sealer 274 may be provided between the lower motor housing 27 and the upper motor housing 26 .

The lower motor housing 27 may further include an air guide 272 for guiding the air discharged from the suction motor 20 to the second air flow path 234 .

The upper motor housing 27 may support the flow guide 22 . A second sealer 274 may be provided between the upper motor housing 27 and the flow guide 22 .

A through hole 262 through which air passing through the through hole 273 of the lower motor housing 27 passes may be formed in the upper motor housing 26 as well.

18 is a view showing an air flow in a cleaner according to an embodiment of the present invention.

An air flow in the cleaner 1 will be described with reference to FIGS. 17 and 18 .

Air and dust sucked through the suction unit 5 by the operation of the suction motor 20 are separated from each other while flowing along the inner circumferential surface of the first cyclone unit 110 .

The dust separated from the air flows downward and is stored in the first dust storage unit 121 . The air separated from the dust flows to the second cyclone unit 130 . The air flowing into the second cyclone unit 130 is again separated from dust.

The dust separated from the air in the second cyclone unit 130 flows downward and is stored in the second dust storage unit 123 . On the other hand, the air separated from the dust in the second cyclone unit 130 is discharged from the second cyclone unit 130 and rises toward the suction motor 20 .

After the air discharged from the second cyclone unit 130 flows along the discharge guide 28 , it passes through the through hole 273 of the lower motor housing 27 , and then passes through the first in the flow guide 22 . It rises along the air flow path 232 . And, the air of the first air flow path 232 passes through the pre-filter (29).

The air passing through the pre-filter 29 passes through the suction motor 20 in the upper motor housing 27 . After the air flows inside the suction motor 20 by the impeller 200 , it is discharged to the lower motor housing 28 . In addition, the air discharged to the lower motor housing 28 is changed in direction by the air guide 272 and flows into the second air passage 234 .

Then, the air flowing into the second air passage 234 is discharged to the outside through the air outlet 522 after passing through the filter 560 .

1: vacuum cleaner 2: body
3: Handle part 5: Suction part
20: suction motor 22: flow guide
26: upper motor housing 27: howe motor housing

Claims (19)

a suction unit for guiding air suction into the handheld vacuum cleaner;
a suction motor having an impeller connected to the shaft to generate a suction force for sucking air through the suction unit;
a first cyclone unit for separating dust from the air sucked through the suction unit;
a second cyclone unit separating dust from the air discharged from the first cyclone unit; and
Including a filter system that is detachably provided,
The filter system is
a pre-filter surrounding at least a portion of the suction motor and filtering air discharged from the second cyclone unit and introduced into the suction motor; and
A handy type cleaner comprising a secondary filter that is detachably provided from the suction motor, is disposed about the rotation shaft of the impeller, filters the air that has passed through the suction motor, and discharges the air to the outside.
The method of claim 1,
The pre-filter is provided to surround the suction motor in a circumferential direction.
3. The method of claim 2,
Further comprising a body accommodating the suction motor,
At least a portion of the pre-filter,
A handy type cleaner provided to be separated from the main body on the basis that the filter system is detachably provided to the main body.
4. The method of claim 3,
The pre-filter is provided to be separated from the main body based on the separation of the filter system from the main body.
4. The method of claim 3,
In a state in which the filter system is coupled to the main body and the handheld cleaner is oriented so that the shaft is aligned along the vertical direction,
At least a portion of the secondary filter is disposed above the impeller,
The pre-filter and the secondary filter are provided to be separable from the main body in the vertical direction.
The method of claim 1,
The radial width of the secondary filter is larger than the radial width of the pre-filter.
The method of claim 1,
The pre-filter is a handy-type cleaner disposed so that filtered air flows inward toward the suction motor.
a suction unit for guiding air suction into the handheld vacuum cleaner;
a first cyclone unit for separating dust from the air sucked through the suction unit;
a second cyclone unit for separating dust from the air discharged from the first cyclone unit;
a suction motor including an impeller for generating suction force to suck air through the suction unit;
a motor housing disposed above the second cyclone unit and accommodating the impeller and the suction motor disposed above the suction motor; and
a filter system surrounding at least a portion of the impeller and at least a portion of the motor housing;
The filter system is
a first filter for filtering the air discharged from the second cyclone unit and introduced into the suction motor; and
and a second filter disposed around the first filter above the impeller and filtering the air discharged to the outside,
The second filter is a handy type cleaner extending in a circumferential direction about a rotation axis of the impeller.
9. The method of claim 8,
The second filter is disposed above a portion of the first filter,
The first filter is disposed in an area defined by an outer periphery of the second filter.
9. The method of claim 8,
The filter system further includes a filter frame accommodating the second filter and formed in a ring shape.
9. The method of claim 8,
In a state in which the axis of cyclone flow of the first cyclone part is arranged in the vertical direction, a bottom of the suction motor is disposed above an upper end of the second cyclone part.
9. The method of claim 8,
The second cyclone unit includes a plurality of cyclone bodies disposed under the motor housing to separate dust from the air discharged from the first cyclone unit,
A portion of the plurality of cyclone bodies is disposed to overlap the motor housing along a rotation axis of the impeller.
9. The method of claim 8,
The second cyclone unit, the suction motor, and the impeller are sequentially disposed along the extension direction of the rotation shaft of the impeller.
suction unit;
a suction motor including an impeller connected to the shaft to generate a suction force for sucking air through the suction unit;
a motor housing accommodating the suction motor and the impeller;
a body accommodating the motor housing;
a first cyclone unit for separating dust from the air sucked through the suction unit;
a second cyclone unit for separating dust from the air discharged from the first cyclone unit; and
Including a filter system detachably provided on the body,
The filter system is
a pre-filter disposed to surround the motor housing, filtering the air discharged from the second cyclone unit and introducing it into the motor housing; and
It is provided detachably from the motor housing and is disposed about the rotation shaft of the impeller, and includes a secondary filter that filters the air passing through the suction motor to exit the body,
Based on the state in which the filter system is coupled to the main body, the secondary filter is disposed farther than the pre-filter in a radial direction with respect to a rotational axis of the impeller.
15. The method of claim 14,
The filter system may be detachably provided from the main body in a state in which the suction motor is coupled to the main body.
15. The method of claim 14,
The pre-filter and the secondary filter are detachably coupled from the main body in the same direction.
15. The method of claim 14,
The pre-filter may be provided to be exposed to the outside when the filter system is separated from the main body.
15. The method of claim 14,
The pre-filter is a handy type cleaner provided to be separated from the main body depending on the separation of the secondary filter from the main body.
15. The method of claim 14,
The secondary filter is a handy vacuum cleaner including a HEPA filter.

Images