U.S. patent application number 17/584063 was filed with the patent office on 2022-05-12 for vacuum cleaner.
The applicant listed for this patent is Samsung Electronics Co., Ltd.. Invention is credited to Youngjun CHO, Dokyung LEE.
Application Number | 20220142429 17/584063 |
Document ID | / |
Family ID | |
Filed Date | 2022-05-12 |
United States Patent
Application |
20220142429 |
Kind Code |
A1 |
CHO; Youngjun ; et
al. |
May 12, 2022 |
VACUUM CLEANER
Abstract
Disclosed is a vacuum cleaner, which can prevent dust or foreign
objects from flowing backwards. The vacuum cleaner includes a motor
to generate a suction force; a suction assembly to suck air
including dust or foreign objects and including a first air passage
guiding the sucked air; and a dust collection filter to filter the
dust or foreign objects from the sucked air, and including a dust
collecting container having an opening to receive air from the
first air passage of the suction assembly, a guide forming a second
air passage provided to guide a flow of the air received through
the opening, a shutter provided in the guide to operate, according
to the suction force, in an opened mode to open the second air
passage or a closed mode to close the second air passage, and a
filter configured to filter the foreign objects from the sucked
air.
Inventors: |
CHO; Youngjun; (Suwon-si,
KR) ; LEE; Dokyung; (Suwon-si, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Samsung Electronics Co., Ltd. |
Suwon-si |
|
KR |
|
|
Appl. No.: |
17/584063 |
Filed: |
January 25, 2022 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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PCT/KR2020/009590 |
Jul 21, 2020 |
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17584063 |
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International
Class: |
A47L 9/16 20060101
A47L009/16 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 25, 2019 |
KR |
10-2019-0090064 |
Claims
1. A vacuum cleaner, comprising: a motor provided to generate a
suction force; a suction assembly configured to suck air including
dust or foreign objects and including a first air passage through
which the sucked air moves; and a dust collection filter configured
to filter the dust or foreign objects from the sucked air, wherein
the dust collection filter comprises: a dust collecting container
having an opening configured to receive the air from the first air
passage of the suction assembly, a guide forming a second air
passage configured to guide a flow of the air received through the
opening of the dust collecting container, a shutter provided in the
guide and configured, according to the suction force, to: operate
in an opened mode to open the second air passage, and operate in a
closed mode to close the second air passage, and a filter provided
in the dust collecting container and configured to filter the
foreign objects from the air received through the second air
passage of the guide.
2. The vacuum cleaner of claim 1, wherein: the filter has a
cylindrical shape, and the guide is extended in a circumferential
direction of the filter.
3. The vacuum cleaner of claim 2, wherein the guide has a length
within a quarter of a circumference of the filter.
4. The vacuum cleaner of claim 1, wherein the guide is extended in
a rotation direction of the air inside the dust collecting
container.
5. The vacuum cleaner of claim 1, wherein: the filter comprises a
flange configured to fasten the dust collecting container, and the
guide is provided adjacent to the flange.
6. The vacuum cleaner of claim 1, wherein the guide comprises: a
bottom portion; a first blocking wall extending up from a corner of
the bottom portion facing a bottom of the dust collecting
container; and a second blocking wall extending up from a corner of
the bottom portion facing the opening of the dust collecting
container.
7. The vacuum cleaner of claim 6, wherein the first blocking wall
comprises a protruding wall extended past the bottom portion.
8. The vacuum cleaner of claim 6, wherein the shutter is provided
on an end of the bottom portion of the guide.
9. The vacuum cleaner of claim 1, wherein the shutter is obliquely
extended at an angle from 10 to 70 degrees toward the dust
collecting container from an outer circumference surface of the
filter.
10. The vacuum cleaner of claim 1, wherein the shutter is joined to
the guide.
11. The vacuum cleaner of claim 1, wherein the shutter is formed of
an elastic plate.
12. The vacuum cleaner of claim 11, wherein the elastic plate is
made of a natural rubber, a synthetic rubber, a plastic or a metal.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a bypass continuation of International
Application No. PCT/KR2020/009590, filed Jul. 21, 2020, which
claims priority to Korean Patent Application No. 10-2019-0090064,
filed Jul. 25, 2019, the disclosures of which are herein
incorporated by reference in their entirety.
BACKGROUND
1. Field
[0002] The disclosure relates to a vacuum cleaner, which can
prevent sucked dust or foreign objects from being flown
backward.
2. Description of Related Art
[0003] A stick type vacuum cleaner is equipped with a cleaner body
that generates suction force, a suction assembly that suctions dust
or foreign subjects from a surface to be cleaned such as a carpet,
and a stick having a connection pipe that has a passage to transmit
the dust or foreign subjects sucked through suction assembly. The
stick may have an upper end to which the cleaner body is connected
and a lower end to that the suction assembly is connected. The
cleaner body is provided with a dust collecting container that
accommodates the dust or foreign subjects sucked through the stick.
The suction assembly includes a rotating drum brush, and a motor
that rotates the drum brush. Meanwhile, the dust or foreign
subjects sucked through the stick are filtered by a filter after
being introduced into the dust collecting container, and remains in
the dust collecting container. When the vacuum cleaner stops
working and thus the suction force disappears, the dust or foreign
subjects introduced or being introduced as described above may flow
back through the stick again due to tilting of the vacuum cleaner,
external impact and the like.
[0004] In a conventional vacuum cleaner, a dust backflow prevention
valve is disposed at an end of the stick. Such a dust backflow
prevention valve may be restricted from operating due to introduced
large dust or may deteriorate its function due to fine dust stuck
therein. In addition, there is a problem in that maintenance is not
easy because the valve with such a deteriorated function is not
exposed well due to its position.
SUMMARY
[0005] An object of the disclosure is to provide a vacuum cleaner
capable of not only easily maintaining, but also efficiently
preventing sucked dust or foreign objects from being flown
backward.
[0006] In an embodiment, a vacuum cleaner is provided. The vacuum
cleaner includes a motor provided to generate a suction force; a
suction assembly configured to suck air including dust or foreign
objects and including a first air passage through which the sucked
air moves; and a dust collection filter provided to filter the dust
or foreign objects from the sucked air, and the dust collection
filter includes: a dust collecting container having an opening
configured to receive the air the first air passage of the suction
assembly , a guide forming a second air passage configured to guide
a flow of the air received through the opening of the dust
collecting container, a shutter provided in the guide and
configured, according to the suction force, to operate in an opened
mode to open the second air passage and operate in a closed mode to
close the second air passage, and a filter provided in the dust
collecting container to penetrate the air introduced through the
second air passage of the guide to filter the foreign objects
therefrom.
[0007] The filter may have a cylindrical shape, and the guide may
be extended in a circumferential direction of the filter.
[0008] The guide may have a length within a quarter of the
circumference of the filter.
[0009] The guide may be extended in a rotation direction of the air
inside the dust collecting container.
[0010] The filter may include a flange configured to fasten the
dust collecting container, and the guide may be provided adjacent
to the flange.
[0011] The guide may include a bottom portion; a first blocking
wall extending up from a corner of the bottom portion facing a
bottom of the dust collecting container; and a second blocking wall
extend from a corner of the bottom portion facing the opening of
the dust collecting container.
[0012] The first blocking wall may include a protruding wall
extended past the bottom portion.
[0013] The shutter may be provided on an end of the bottom portion
of the guide.
[0014] The shutter may be obliquely extended at an angle from 10 to
70 degrees toward the dust collecting container from an outer
circumference surface of the filter.
[0015] The shutter may be joined to the guide.
[0016] The shutter may be formed of an elastic deformable and
restorable plate made of a natural rubber, a synthetic rubber, a
plastic or a metal.
[0017] As described above, the vacuum cleaner of the disclosure
provides the guide for guiding the air introduced into the
detachable dust collecting container in the air rotation direction
and provides the shutter in the guide, thereby reliably preventing
the sucked dust from flowing back even if the vacuum cleaner is
tilted or turned upside down when there is no suction force.
[0018] In addition, the shutter provided in the guide of the outer
circumferential surface of the filter in the dust collecting
container may be completely exposed when the dust collecting
container is separated, so it is easy to maintain.
[0019] Before undertaking the DETAILED DESCRIPTION below, it may be
advantageous to set forth definitions of certain words and phrases
used throughout this patent document: the terms "include" and
"comprise," as well as derivatives thereof, mean inclusion without
limitation; the term "or," is inclusive, meaning and/or; the
phrases "associated with" and "associated therewith," as well as
derivatives thereof, may mean to include, be included within,
interconnect with, contain, be contained within, connect to or
with, couple to or with, be communicable with, cooperate with,
interleave, juxtapose, be proximate to, be bound to or with, have,
have a property of, or the like; and the term "controller" means
any device, system or part thereof that controls at least one
operation, such a device may be implemented in hardware, firmware
or software, or some combination of at least two of the same. It
should be noted that the functionality associated with any
particular controller may be centralized or distributed, whether
locally or remotely.
[0020] Moreover, various functions described below can be
implemented or supported by one or more computer programs, each of
which is formed from computer readable program code and embodied in
a computer readable medium. The terms "application" and "program"
refer to one or more computer programs, software components, sets
of instructions, procedures, functions, objects, classes,
instances, related data, or a portion thereof adapted for
implementation in a suitable computer readable program code. The
phrase "computer readable program code" includes any type of
computer code, including source code, object code, and executable
code. The phrase "computer readable medium" includes any type of
medium capable of being accessed by a computer, such as read only
memory (ROM), random access memory (RAM), a hard disk drive, a
compact disc (CD), a digital video disc (DVD), or any other type of
memory. A "non-transitory" computer readable medium excludes wired,
wireless, optical, or other communication links that transport
transitory electrical or other signals. A non-transitory computer
readable medium includes media where data can be permanently stored
and media where data can be stored and later overwritten, such as a
rewritable optical disc or an erasable memory device.
[0021] Definitions for certain words and phrases are provided
throughout this patent document, those of ordinary skill in the art
should understand that in many, if not most instances, such
definitions apply to prior, as well as future uses of such defined
words and phrases.
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] For a more complete understanding of the present disclosure
and its advantages, reference is now made to the following
description taken in conjunction with the accompanying drawings, in
which like reference numerals represent like parts:
[0023] FIG. 1 is a perspective view of a vacuum cleaner according
to an embodiment of the disclosure.
[0024] FIG. 2 is a perspective view of a cleaner body of the vacuum
cleaner shown in FIG. 1.
[0025] FIG. 3 is an exploded view of the cleaner body shown in FIG.
1.
[0026] FIG. 4 is a cross-sectional view taken along line A-A of
FIG. 2.
[0027] FIG. 5 is a view showing a guide and a shutter provided in a
filter assembly of the vacuum cleaner.
[0028] FIG. 6 is a perspective view showing a cross-sectional taken
along line B-B of FIG. 2.
[0029] FIG. 7 is a perspective view showing the guide and the
shutter separated from the filter assembly.
[0030] FIG. 8 is a perspective view showing the guide and the
shutter in a direction opposite to those shown in FIG. 7.
[0031] FIG. 9 is a view showing an operation of the shutter in a
state in which the vacuum cleaner stops working.
[0032] FIG. 10 is a view showing an operation of the shutter in a
state in which the vacuum cleaner is operating.
DETAILED DESCRIPTION
[0033] FIGS. 1 through 10, discussed below, and the various
embodiments used to describe the principles of the present
disclosure in this patent document are by way of illustration only
and should not be construed in any way to limit the scope of the
disclosure. Those skilled in the art will understand that the
principles of the present disclosure may be implemented in any
suitably arranged system or device.
[0034] Hereinafter, a vacuum cleaner 1 according to the disclosure
will be described in detail with reference to the accompanying
drawings. Embodiments described below describe the vacuum cleaner
as being applied to a stick type vacuum cleaner to aid
understanding of the disclosure, which is illustrative. Unlike the
embodiments described herein, it should be understood that the
vacuum cleaner may be implemented in various modifications such as
a handy type vacuum cleaner, a handy-stick type vacuum cleaner, a
canister type vacuum cleaner and an upright type vacuum cleaner.
However, in explaining the disclosure below, when it is decided
that a detailed description for the known functions or components
related to the disclosure may obscure the gist of the disclosure,
the detailed description and concrete illustration will be
omitted.
[0035] FIG. 1 is a perspective view of a vacuum cleaner according
to an embodiment of the disclosure. The vacuum cleaner 1 according
to the embodiment of the disclosure includes a cleaner body 10 that
generates suction force and a suction assembly 20 that sucks dust
or foreign objects on a surface to be cleaned by the suction force
of the cleaner body 10.
[0036] The cleaner body 10 includes a body frame 11, a suction
motor 12 that generates the suction force, a dust collection filter
unit 13 that filters the dust or foreign objects sucked by the
suction force, and a battery 14.
[0037] The body frame 11 may include a handle 111 that can be
gripped by a user, a manipulating part 112 that manipulates the
vacuum cleaner 1, a battery support 113 that supports the battery
14, and a stick connection pipe 114.
[0038] The manipulating part 112 may include buttons that can turn
the vacuum cleaner 1 on and off, controlling strength and weakness
in the suction force of the vacuum cleaner 1, etc.
[0039] The battery support 113 detachably supports the battery 14,
and may include connector terminals that come in contact with power
terminals of the battery 14.
[0040] The stick connection pipe 114 may be connected with a stick
24 of the suction assembly 20. The stick connection pipe 114 may
have a hollow hole that communicates with a first air passage of
the stick 24 through which the sucked air is introduced. The stick
connection pipe 114 may be connected with the dust collection
filter unit 13 that is provided adjacent thereto to transfer the
sucked air.
[0041] The suction motor 12 generates the suction force for sucking
the dust or foreign objects from the surface to be cleaned. The
suction motor 12 may be mounted on the body frame 11.
[0042] The dust collection filter unit 13 filters the dust or
foreign objects from the air introduced through the stick
connection pipe 114. Detailed explanation on the dust collection
filter unit 13 will be described later.
[0043] The battery 14 may supply power for operating the vacuum
cleaner 1. The battery 14 may be detachably coupled to the battery
support 113 of the body frame 11. The battery 14 may be implemented
as a rechargeable secondary battery.
[0044] The suction assembly 20 may include a brush unit 22 that
sucks the dust or foreign objects on the surface to be cleaned, and
a stick 24.
[0045] The brush unit 22 may include a drum brush. The drum brush
have a cylindrical roller shape, and is covered with a cleaning
member, such as a cotton flannel, on an outer circumference surface
thereof. The drum brush shake off the dust deeply attached between
multiple hairs of carpet to scatter the dust onto the carpet. The
brush unit 22 may include a driving motor that generates power to
rotate the drum brush. The driving motor is supplied with the power
through the stick 24 from the battery 14 of the cleaner body
10.
[0046] The stick 24 at one side thereof may be connected to the
brush unit 22, and at the other side may be connected to the stick
connection pipe 114 of the body frame 11. The stick 24 may form the
first air passage through which the dust or foreign objects sucked
from the brush unit 22 passes. The dust or foreign sucked in the
brush unit 22 may be introduced into the dust collection filter
unit 13 through the stick connection pipe 114 via the first air
passage of the stick 24.
[0047] The stick 24 may be a plurality of pipes having hollow holes
to form the first air passage. The plurality of pipes, which form
the stick 24, may be joined or combined to allow the stick to
increase or decrease in length.
[0048] FIG. 2 is a perspective view of the cleaner body 10
according to an embodiment of the disclosure, FIG. 3 is an exploded
view of the cleaner body 10 shown in FIG. 2, and FIG. 4 is a
cross-sectional view taken along line A-A of FIG. 2.
[0049] The cleaner body 10 may include the suction motor 12, and
the dust collection filter unit 13 that filters the dust or foreign
objects sucked by the suction force of the suction motor 12.
[0050] The dust collection filter unit 13 may be detachably
connected to the suction motor 12 to filter the dust or foreign
objects from the air that is sucked from the surface to be cleaned
by the suction force.
[0051] The dust collection filter unit 13 may include a filter
assembly 132, a dust collecting container 134 that accommodates the
filter assembly 132 while spaced apart with the filter assembly
132, a guide 136 provided in the dust collecting container 134 to
form a second air passage for the air, and a shutter 138 provided
in the guide 136 to selectively open or close the second air
passage.
[0052] The filter assembly 132 may include a first cyclone 1321, a
filter member 1322, a second cyclone 1323 and an exhaust filter
1324, which are combined sequentially with one another.
[0053] The first cyclone 1321 is located at the deepest position of
the dust collecting container 134. The first cyclone 1321 may
generate a centrifugal force to rotate the air in the dust
collecting container 134, thereby first separating the dust or
foreign objects.
[0054] The filter member 1322 may be implemented as a cylindrical
metal net that filters the foreign objects. The filter member 1322
at a first side may be combined with the first cyclone 1321 and at
a second side accommodate the second cyclone 1323.
[0055] The second cyclone 1323 may include a plurality of, for
example, nine small cyclone units 1326, and a cyclone supporting
member 1327 that accommodates and supports the small cyclone units
1326.
[0056] The small cyclone units 1226 may provide secondary
separation of fine dust by the centrifugal force from filtered air
introduced from the first cyclone 1321 and the filter member
1322.
[0057] The cyclone supporting member 1327 may include a cyclone
receiving part 1328 in the form of cylinder in which a plurality of
openings are formed in the circumferential direction, and a flange
1329 that is radially extended from the cyclone receiving part
1328.
[0058] The exhaust filter 1324 may be provided in an exhaust part
122 of the suction motor 12 to further filter the dust or foreign
subjects from the air, which is discharged to the outside.
[0059] The dust collecting container 134 may be detachably coupled
to the flange 1329 of the cyclone supporting member 1327 while
accommodating the filter assembly 132 and spaced apart with the
filter assembly 132.
[0060] The dust collecting container 134 may be provided in
parallel with and adjacent to the stick connection pipe 114. The
dust collecting container 134 may include a dust inlet 1342 that
communicates with the first air passage of the stick 24 through an
intermediate air passage of the stick connection pipe 114 to
introduce the dust or foreign subjects. The stick connection pipe
114 is provided with an air outlet (see air outlet 1142 in FIG, 5)
that communicates with the dust inlet 1342 of the dust collecting
container 134 at an end of the intermediate air passage of the
stick connection pipe 114.
[0061] The air sucked from the surface to be cleansed may pass
through the brush unit 22, the stick 24, the stick connection pipe
114, the dust collecting container 134 and the filter assembly 132
and discharged.
[0062] FIG. 5 is a view showing the guide 136 and the shutter 138
provided in the filter assembly 132, and FIG. 6 is a perspective
view showing a cross-sectional taken along line B-B of FIG. 2.
[0063] The guide 136 may be mounted in the dust collecting
container 134 to extend along a circumferential direction of the
filter assembly 132. The guide 136 may form the second air passage
that communicates with the air outlet 1142 of the stick connection
pipe 114 and the dust inlet 1342 of the dust collecting container
134 and guides air delivered from the first air passage along the
circumferential direction of the filter assembly 132. The second
air passage is formed of a space consisting of a first surface of
the guide 136 and a second surface in an inner side of the dust
collecting container 134, the second surface can be spaced apart
from the first surface by a predetermined distance to face the
first surface. The air introduced into the dust collecting
container 134 rotates in a single direction according to the
centrifugal force by the first and the second cyclones 1321 and
1323. To naturally guide the air into the dust collecting container
134, the guide 136 may be extended along a rotation direction of
the air in the dust collecting container 134.
[0064] The guide 136 may be configured with an extension length
from an inlet side to an outlet side of the second air passage is
within a quarter of a circumference length 2.pi. of the filter
assembly 132. If the length of the guide 136 exceeds the quarter of
the circumference length of the filter assembly 132, a space at the
outlet side of the second air passage of the guide 136 is reduced,
and thus it is difficult to form an airflow for inducing air
rotation in the dust collecting container 134. Also, if the length
of the guide 136 is too short, the guide 136 may not be as
effective to block the dust or foreign objects in the dust
collecting container 134.
[0065] The shutter 138 is provided in an outlet of the second air
passage, i.e., an end of the guide 136, thereby allowing the second
air passage of the guide 136 to be opened or closed. The shutter
138 may be operated in an opened mode in which it opens the second
air passage when the suction force generates according to the
operation of the vacuum cleaner 1 and operated in a closed mode in
which it returns to close the second air passage when there is no
suction force.
[0066] The shutter 138 may be formed of an elastic plate made of a
natural rubber, a synthetic rubber, a plastic or a metal. The
elastic plate can be deformable and restorable.
[0067] The shutter 138 may be obliquely extended in a predetermined
angle .alpha. toward an inner circumference surface of the dust
collecting container 134 adjacent to an inner wall of the guide 136
at an outer circumference surface of the filter assembly 132. In
order to facilitate deformation and restoration without causing
pressure loss for not only large suction force but also for small
suction force, the shutter 138 may be provided in an angle .alpha.
of 10 to 70 degrees.
[0068] In a modified embodiment, the guide 136 may be mounted in
the dust collecting container 134 instead of the filter assembly
132. In this case, the shutter 138 may be obliquely extended toward
the outer circumference surface of the filter assembly 132.
[0069] FIG. 7 is a perspective view showing the guide 136 and the
shutter 138 separated from the filter assembly 132, and FIG. 8 is a
perspective view showing the guide 136 and the shutter 138 in a
back side of those shown in FIG. 7.
[0070] The guide 136 may include a bottom portion 1361, a first
blocking wall 1362 extended from a first side (lower side) of the
bottom portion 1361, and a second blocking wall 1363 extended from
a second side (left side) of the bottom portion 1361 toward an
inlet side of the guide 136. A third side (right side) of the
bottom portion 1361 of the guide 136 may be provided in an opened
state. At this time, at a fourth side (upper side) of the bottom
portion 1361, the flange 1329 of the cyclone supporting member 1327
may carry out a role of the blocking wall.
[0071] The first blocking wall 1362 may first block the dust or
foreign subjects of the dust collecting container 134 from flowing
back.
[0072] In a modified embodiment, the guide 136 may include a third
blocking wall extend from the fourth side (upper side) of the
bottom portion 1361.
[0073] The guide 136 may include a fastening hole 1367 in the
bottom portion 1361. The guide 136 may be supported by fastening a
fixing pin 1368, which is provided on an outer circumference
surface of a cyclone accommodating part 1328, in the fastening hole
1367.
[0074] The guide 136 may include a jointing part 1364 formed
integrally with the second blocking wall 1363. The guide 136 may be
supported on the cyclone supporting member 1327 by fasting a first
bolt hole 1365 of the jointing part 1364 and a second bolt hole
1369 provided on the flange 1329 of the cyclone supporting member
1327, by means of a bolt.
[0075] The first blocking wall 1362 may include a protruding wall
1366 that is protruded and extended beyond the third side (right
side) of the bottom portion 1361. The protruding wall 1366 allows
the shutter 138 obliquely extended at the predetermined angle to
operate while stably closing the second air passage of the guide
136.
[0076] The shutter 138 is provided on the end of the guide 138 to
secondly block the dust or foreign subjects in the dust collecting
container 134 from flowing back.
[0077] The shutter 138 may include a base 1382 that is overlapped
with and supported on the bottom portion 1361 of the guide 136, and
an inclined part 1384 hingedly connected from one side of the base
1382 to be inclined upward, for example, in an angle of 10 to 70
degrees.
[0078] As shown in FIG. 8, the base 1382 may include three
fastening holes 1386. The bottom portion 1361 of the guide 136 at a
back surface thereof may include three fastening protrusions 1370.
The base 1382 may be coupled to the bottom portion 1361 of the
guide 136 by inserting the fastening protrusions 1370 into the
fastening holes 1386.
[0079] Of course, the shutter 138 and the guide 136 may be coupled
by fusion or adhesion in addition to the above-described fastening
method. In addition, the shutter 138 and the guide 136 may be
integrally formed.
[0080] The inclined part 1384 may be configured to contact a first
side (left side) thereof with the third side (right side) of the
bottom portion 1361, contact a second side (lower side) thereof
with the protruding wall 1366 of the first blocking wall 1362,
contact a third side (right side) thereof with the inner wall of
the dust collecting container 134 when the second air passage is
blocked, and contact a fourth side (upper side) thereof with the
flange 1329 of the cyclone supporting member 1327, thereby blocking
the second air passage of the guide 136.
[0081] FIG. 9 is a view showing an operation of the shutter 138 in
a state in which the vacuum cleaner 1 stops working, and FIG. 10 is
a view showing an operation of the shutter 138 in a state in which
the vacuum cleaner 1 is working.
[0082] As shown in FIG. 9, the shutter 138 blocks the outlet of the
second air passage of the guide 136 provided between the filter
assembly 132 and the dust collecting container 134 since there is
no suction force when the vacuum cleaner 1 stops working.
[0083] As shown in FIG. 10, the shutter 138 is deformed by the
suction force during the operation of the vacuum cleaner 1 to open
the outlet of the second air passage of the guide 136 provided
between the filter assembly 132 and the dust collecting container
134. Thereafter, when the vacuum cleaner 1 stops working again and
thus the suction force is lost, the shutter 138 returns as shown in
FIG. 9 to block the outlet of the second air passage, thereby
preventing the dust or foreign subjects accumulated in the dust
collecting container 134 from flowing back.
[0084] As described above, the vacuum cleaner 1 of the disclosure
may reliably block the dust or foreign subjects in the dust
collecting container 134 from flowing back, in the state in which
it stops working.
[0085] In particular, the guide 136 and the shutter 138 are
configured to provide the opening and closing positions of the
shutter in the left and right directions, not in the up and down
directions of the dust collecting container 134 and provide them at
positions higher than the bottom of the dust collecting container
134 in which the dust or foreign subjects is accumulated, so that
they may be less affected by the dust or foreign subjects
accumulated on the bottom of the dust collecting container 134.
[0086] Also, the guide 136 or the shutter 138 is certainly exposed
to the user by separating the dust collecting container 134,
thereby easily maintaining.
[0087] Although the preferred embodiments of the disclosure have
been illustrated and described above, the disclosure is not limited
to the specific embodiments described above, and can be variously
modified by those skilled in the art to which the disclosure
pertains without departing from the gist of the disclosure claimed
in the claims, and these modifications should not be understood
individually from the technical ideas or prospects of the
disclosure.
[0088] Although the present disclosure has been described with
various embodiments, various changes and modifications may be
suggested to one skilled in the art. It is intended that the
present disclosure encompass such changes and modifications as fall
within the scope of the appended claims.
* * * * *