KR102553342B1 - Cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner. The present invention may include a housing 1 provided with a suction port 8 through which air is introduced, and a filtering unit 30 may be installed in the inner space S1 of the housing 1. Also, the cleaning unit 110 is installed to surround the filtering unit 30, and the cleaning unit 110 may have a guide passage E for guiding the flow of sucked air. The cleaning unit 110 may include a connection plate 128 extending in an elevation direction of the cleaning unit 110 , and an operation unit 150 may be coupled to the connection plate 128 . At this time, a discharge slope 149a, which gradually decreases in height along the air flow direction formed by the guide passage E, may be formed at a connection portion between the connection plate 128 and the control unit 150. .

Description

Cleaner {Cleaner}

The present invention relates to a vacuum cleaner, and more particularly, to a cleaner having a cleaning unit capable of compressing dust inside a dust bin without opening the dust bin.

A vacuum cleaner is a device that performs cleaning by sucking or wiping dust or foreign substances in an area to be cleaned. Such cleaners may be classified into manual cleaners for cleaning while a user directly moves the cleaner, and automatic cleaners for performing cleaning while driving by itself.

In addition, manual cleaners may be classified into canister-type cleaners, upright-type cleaners, handheld cleaners, stick-type cleaners, and the like, depending on the shape of the cleaner. Among them, the handheld vacuum cleaner includes a separation device that separates garbage and dust from the air stream.

The separation device includes a centrifugal separator having one or more cyclones. The centrifugal separator includes a first cyclone having a walled dust collector. A dust collector is disposed below the first cyclone, and the dust collector may be opened and closed by a base (lower cover). The base is rotated by a hinge to open and close the dust collector.

Inside the first cyclone, a filter part, which is a kind of cover having a plurality of through holes, is included. The second cyclone communicates with the first cyclone through the filter unit. The air inside the first cyclone flows through the second cyclone after passing through the filter unit. As the air passes through the plurality of holes of the filter unit, dust blocks the plurality of holes of the filter unit. The more the plurality of holes are clogged, the more the air flow is not smooth and the separation performance is lowered.

Therefore, the user must periodically clean the filter unit. However, since the user has to clean the filter unit after opening the dust collector by rotating the base, which is basically a lower cover, and then approaching the filter unit, there is a disadvantage in that cleaning the filter unit is not easy.

In addition, conventionally, dust separated from the first and second cyclones falls downward and accumulates on the upper side of the base. When the operation of the cleaner is stopped, the separated dust is stored in the dust collector in a low density state. That is, since the dust separated by the first cyclone occupies a volume too large compared to its weight, it is inconvenient to frequently empty the dust in the dust bin to maintain the dust collection performance even though there is still a sufficient free space inside the dust collector. there is a ham

In order to solve this problem, a compression member (cleaning unit) capable of compressing dust accumulated in the dust collection unit is installed inside the dust collection unit, and technologies capable of compressing the dust by lowering the compression member from the outside without opening the base have been disclosed. (Japanese Patent No. 3699679, US Patent Publication No. 2018-0132685, etc.) The compression member is installed to surround the filter unit, and while descending toward the base, pushes the dust attached to the filter unit downward and at the same time presses and compresses the dust accumulated in the dust collection unit. and returns to the original position by the elastic force of an elastic member such as a spring.

However, since the compression member disclosed in these prior arts has an elevating structure, it is easy to accumulate dust on the top. Particularly, dust may also be accumulated on the connection between the compression member and the control lever for manipulating the compression member. In this case, the compression member cannot return to its original position, that is, the initial position due to the presence of dust.

Looking at the reason why dust accumulates on the upper part of the compression member, (i) part of the air sucked in while the vacuum cleaner is in use flows into the gap between the compression member and the inner surface of the dust box and accumulates on the connection between the compression member and the control lever. , (ii) When the compression member is raised and lowered, the dust existing in the dust bin falls to the top of the compression member and accumulates on the joint between the compression member and the handle.

If dust accumulates on the upper part of the compression member, including the connecting portion, and the dust is compacted during the lifting process of the compression member, the compression member is interfered with by the thickness of the dust and cannot return to its original position. If the compression member fails to return to its original position, the cyclone flow of the cleaner is hindered, resulting in lower performance of the cleaner.

Of course, dust can be removed by periodically cleaning the upper part of the compression member, but since the upper part of the compression member is located on the opposite side when the dust bin is opened, cleaning is difficult unless the compression member is completely disassembled.

In addition, the gap between the compression member and the inner surface of the dust box may be reduced so that the inhaled air does not flow into the gap between the compression member and the inner surface of the dust box. However, it may block the air flow path of the sucked air, resulting in a problem in that the cyclone flow is not smooth.

In addition, the conventional compression member is connected to a control lever protruding from the outside of the vacuum cleaner so that it can be manipulated from the outside. Since a large load is concentrated on the connection portion connecting the control lever and the compression member and its surroundings, the compression member is easily moved. There is a problem with deformation or breakage. When the vicinity of the connection part of the compression member is deformed, it interferes with parts inside the vacuum cleaner, which also causes a problem of obstructing the smooth elevation of the compression member.

Japanese Patent Registration No. 3699679 US Patent Publication 2018-0132685

The present invention is to solve the problems of the prior art as described above, and an object of the present invention is to provide a cleaning unit that secures a spare space by compressing dust accumulated inside a dust bin of a vacuum cleaner, but the upper part of the cleaning unit, especially the operation unit and This is to prevent dust from accumulating on the upper part of the connection bracket of the connected cleaning unit.

Another object of the present invention is to ensure that the accumulated dust is naturally removed during use of the vacuum cleaner even if dust accumulates on the top of the cleaning unit.

Another object of the present invention is to prevent the cleaning unit from being easily deformed by reinforcing the strength of a connection portion connecting a cleaning unit and an external operation unit.

According to a feature of the present invention for achieving the above object, the present invention creates a dust collection space between a housing provided with a suction port through which air is introduced and installed in the inner space of the housing and the inner surface of the housing. A filtering unit, installed to surround the filtering unit, and moved up and down in the dust collecting space in conjunction with the operation unit, but at least partially connected to an air suction path extending from the suction port at the initial position to guide the flow of the sucked air and a cleaning unit having a guide passage. A guide fence is provided along an outer edge of the cleaning unit, and the guide fence faces the inner surface of the housing and extends along the inner surface of the housing to form the guide passage. Therefore, it is possible to block a path in which the air that is sucked in travels through the gap between the housing and the cleaning unit and moves toward the top of the cleaning unit or toward the connecting portion of the cleaning unit and the operation unit.

Further, the front portion of the guide fence extends to a position closer to the suction port than a point where the air intake path meets the guide oil of the cleaning unit. Therefore, most of the sucked air is blocked by the guide fence before meeting the gap between the cleaning unit and the housing, and the sucked air can be prevented from penetrating into the gap between the cleaning unit and the housing more reliably.

In addition, a front portion is formed at a front portion of the guide fence toward the suction port, and the front portion is formed with different degrees of protrusion toward the air inlet along the ascending and descending direction of the cleaning unit. Therefore, the stepped surface in the form of a curved or inclined surface made at the front of the guide fence can naturally guide the dust mixed in the air toward the bottom of the dust collection space, and prevent large foreign substances from blocking the front of the guide fence or getting stuck between the inner surface of the dust bin. it prevents

Further, a connection plate extends in a lifting direction of the cleaning unit from the cleaning body of the cleaning unit, and a blocking wall is formed on the connection plate in a direction opposite to the air flow direction formed along the guide passage. Therefore, it is possible to further reduce the gap between the cleaning unit and the housing around the connection bracket where dust tends to accumulate, and it is possible to prevent dust from accumulating on the upper surface of the connection bracket.

In addition, a connection bracket connected to the operation unit protrudes from the cleaning unit, and a discharge inclined surface gradually decreasing in height toward the bottom of the dust collecting space is formed on an upper surface of the connection bracket based on an elevation direction of the cleaning unit. This discharge slope naturally discharges the dust settled on the upper surface of the bracket downward before it is accumulated and compacted on the upper surface of the bracket.

In addition, at least one of the inner surface of the housing or the outer surface of the connecting plate facing the housing is adjacent to the lifting channel in which the connecting bracket of the connecting plate is lifted, a filter rib protrudes along the lifting direction of the connecting bracket toward the other side, Reduce the gap between the inner surface of the housing and the outer surface of the connecting plate. The filter rib protrudes in the direction of the cleaning unit to block air from flowing in the direction of the connection bracket along the gap between the housing and the cleaning unit.

Meanwhile, a cleaning ring that cleans the filter surface by coming into contact with the filter surface is provided at a lower portion of the cleaning body constituting the cleaning unit while the cleaning body moves up and down. The cleaning ring may be formed in a flexible rubber form at an end of the cleaning body. In addition, the cleaning ring may be formed by double injection for coupling with the cleaning body. The cleaning ring formed of a thin and flexible material may be deformed to the inner surface of the cleaning body due to high temperature during the double injection process, or may be rolled up during the lifting process of the cleaning unit. In order to prevent this phenomenon, a support rib is formed at a connection portion between the cleaning body and the cleaning ring.

The support rib may protrude toward the bottom of the dust collecting space to support a surface opposite to the inclined surface of the guide of the cleaning ring.

Further, a connection plate extends in a lifting direction of the cleaning unit from the cleaning body of the cleaning unit, and the connection plate is connected to the operation unit so that the operation unit and the cleaning unit are interlocked. As described above, in the present invention, a connection plate for connecting the operation unit is secured sufficiently wide along the ascending and descending direction of the cleaning unit. Therefore, it is possible to reinforce the connection portion where the external force transmitted from the operation unit (the force for lifting the cleaning unit) is concentrated.

A reinforcing plate is overlapped with the connection plate, and a connection bracket is provided on the reinforcing plate to be connected to the control unit. That is, in the cleaning unit of the present invention, not only the connection plate is made large enough, but also the reinforcing plate is overlapped with the connection plate. Therefore, the strength of the connecting portion connecting the cleaning unit and the operation unit can be more reliably reinforced.

In addition, on the upper surface of the cleaning body corresponding to the opposite side of the guide passage created by the cleaning unit, a top surface cleaning unit is formed in a continuous path along the circumferential direction, and the upper surface cleaning unit has an entrance starting from a position adjacent to the suction port. is formed higher than the outlet of As such, since the height of the top cleaning unit gradually decreases from the entrance to the exit, even if dust accumulates on the top surface of the cleaning unit, the dust can be naturally removed by the air flowing through the top cleaning unit.

And, according to another feature of the present invention, in the present invention, a housing provided with a suction port through which air is introduced forms a skeleton, and a filtering unit may be installed in an inner space of the housing. The filtering unit may create a dust collecting space between the inner surface of the housing and the filtering unit. In addition to this, the cleaning unit may be installed to surround the filtering unit and move up and down in the dust collection space in conjunction with the operation unit. At an initial position, the cleaning unit may have a guide passage at least partially connected to an air intake path extending from the intake port to guide a flow of the intake air. The cleaning unit may include a connection plate extending in an elevation direction of the cleaning unit, and an operation unit may be coupled to the connection plate. At this time, a discharge slope having a height gradually lowered along an air flow direction formed by the guide passage may be formed at a connection portion between the connection plate and the operation unit.

In addition, the discharge slope may be formed on an upper surface of a connection bracket connecting the connection plate and the operation unit.

In addition, an elevation channel may be recessed in an inner surface of the housing along an elevation direction of the cleaning unit, and at least a portion of the connection bracket may be inserted into the elevation channel.

In addition, the connection bracket may be connected to the movable rail of the control unit in the lift channel.

In addition, a portion of the connection bracket may be passed through in a direction parallel to an elevation direction of the control unit, and the movable rail may be inserted into the through portion of the connection bracket.

In addition, a flat part is formed in the lifting direction of the connecting bracket on the side facing the air flow direction formed by the guide flow path among both side surfaces of the connecting bracket, and the highest point of the discharge slope is formed from the upper end of the flat part. this can start

The flat part may be disposed to face an inner surface of the lifting channel.

In addition, at least one of the inner surface of the housing and the surface of the connection plate facing each other may have a filter rib protruding toward the other side.

The filter rib may be disposed at a position away from the lifting channel, and the filter rib may be disposed at a position spaced apart from the lifting channel in a direction opposite to an air flow direction formed by the guide passage.

In addition, the filter ribs may extend along an elevation direction of the connection plate. A blocking wall may extend from the connection plate in a direction opposite to an air flow direction formed along the guide passage.

Also, the filter rib may protrude from an inner surface of the housing toward a surface of the blocking wall.

In addition, a reinforcing plate may be overlapped with the connection plate, and the connection bracket may be provided on the reinforcing plate to be connected to the operation unit.

In this case, the reinforcing plate may include an assembly body coupled to the guide passage and a reinforcing body extending from the assembly body. The assembly body may form a part of the guide passage, and the connection bracket may be coupled to the reinforcing body.

An assembly part may protrude upward from the assembly body, and an assembly hole into which the assembly part is inserted may be formed in the cleaning body of the cleaning unit.

In addition, the control unit may include a control housing coupled to the housing, and a fixed rail extending in a lifting direction of the cleaning unit may be disposed inside the control housing. A movable rail may extend parallel to the fixed rail, and the movable rail may be moved up and down inside the manipulation housing.

A control lever may be disposed in the control housing, the control lever may move the movable rail up and down while moving along the fixed rail, and a button portion exposed to the outside of the control housing may be provided. A spring may be disposed on the fixed rail to provide elastic force to the control lever in a direction in which the control lever returns to its original position.

In addition, a connection block is connected to the control lever, the connection block connects between the fixed rail and the movable rail, and the movable rail can be moved up and down while moving along the fixed rail together with the control lever.

In addition, at least a part of the movable rail may be disposed inside the lifting channel, and the movable rail may be connected to the connection bracket inside the lifting channel.

In addition, the overall height of the control housing may be formed higher than the height of the elevation channel.

And, according to another feature of the present invention, the present invention may include a housing provided with a suction port through which air is introduced. A filtering unit may be installed in the inner space of the housing, and a cleaning unit may be installed to surround the filtering unit. An operating unit may be connected to the cleaning unit through a connection bracket, and a discharge slope having a height gradually lowered along an air flow direction formed by a guide passage may be formed on a surface of the connection bracket.

As discussed above, the vacuum cleaner according to the present invention has the following effects.

First, according to the present invention, the cleaning unit can press and compress the collected dust while moving (falling) inside the dust bin without opening the dust bin. The cleaning unit is provided with a guide fence to face the inner surface of the dust bin (housing), reduces the gap between Therefore, it is possible to block a path for the air to be sucked in through the gap between the dust bin and the cleaning unit to move toward the top of the cleaning unit or the connection portion between the cleaning unit and the operation unit, and the dust accumulated in the cleaning unit causes the cleaning unit to return to its original position (initial position). position) can be prevented.

In particular, the front part of the guide fence of the present invention extends to a position closer to the suction port than the point where the air intake path meets the inner surface of the guide passage of the cleaning unit. Therefore, most of the sucked air is blocked by the guide fence before meeting the gap between the cleaning unit and the dust bin, and it is possible to more reliably prevent the sucked air from penetrating into the gap between the cleaning unit and the dust bin.

In this way, when the sucked air flows along the gap between the dust bin and the cleaning unit and prevents dust from leaving the upper portion of the cleaning unit (or the connection portion between the cleaning unit and the operation unit), the cleaning unit can return to the initial position. , the cleaning unit can induce a cyclone flow by smoothing the flow of air at the initial position, thereby improving the performance of the vacuum cleaner.

And the front part of the guide fence of the present invention is reduced in the degree of extension toward the suction port toward the bottom along the lifting direction of the cleaning unit. Therefore, the stepped surface in the form of a curved or inclined surface made at the front of the guide fence can naturally guide the dust mixed in the air toward the bottom of the dust bin, and prevent large foreign substances from being blocked by the front of the guide fence or between the inner surface of the dust bin. can do.

In addition, the cleaning unit of the present invention has a connection bracket connected to the operation unit, and a blocking wall is formed around the connection bracket along the direction of air flow in the cleaning unit. Therefore, it is possible to further reduce the gap between the cleaning unit and the dust bin around the connection bracket where dust tends to accumulate, and it is possible to prevent dust from accumulating on the upper surface of the connection bracket.

In addition, a connection bracket connected to the control unit protrudes from the cleaning unit, and a discharge inclined surface is formed on the upper surface of the connection bracket. This discharge slope naturally discharges the dust settled on the upper surface of the bracket downward before it is accumulated and compacted on the upper surface of the bracket. Accordingly, it is possible to prevent the cleaning unit from returning to its original position due to dust accumulated on the connecting bracket and deteriorating the performance of the cleaner.

In addition, in the dust bin of the present invention, a filter rib protrudes at a position close to the connection bracket. The filter rib protrudes in the direction of the cleaning unit to block air from flowing in the direction of the connection bracket along the gap between the dust bin and the cleaning unit. Therefore, the filter rib prevents dust from accumulating on the upper surface of the connection bracket, and the cleaning unit can return to its original position and create a cyclone flow.

In addition, an operating unit for moving the cleaning unit up and down is connected to the cleaning unit. In the present invention, a connection plate for connecting the operating unit is secured sufficiently wide along the lifting direction of the cleaning unit. Therefore, it is possible to reinforce the connection part where the external force transmitted from the operation unit (the force for lifting the cleaning unit) is concentrated, and the worry of twisting or breaking the connection part is greatly reduced, thereby improving durability.

In addition, in the cleaning unit of the present invention, not only the connection plate is made large enough, but also the reinforcing plate is overlapped with the connection plate. Therefore, the strength of the connecting portion connecting the cleaning unit and the operation unit can be more reliably reinforced.

And in the present invention, there is a top cleaning unit that makes a continuous path along the circumferential direction on the upper surface of the cleaning unit. Dust can be removed naturally by the air that blows. Therefore, even if the user does not separately clean the upper surface of the cleaning unit, a phenomenon in which the cleaning unit cannot return to the initial position due to dust accumulated on the upper surface of the cleaning unit can be prevented.

1 is a perspective view showing the configuration of an embodiment of a vacuum cleaner according to the present invention;
Figure 2 is a perspective view showing the components constituting one embodiment of Figure 1 in an exploded state.
3 is a cross-sectional view taken along line II' of FIG. 1;
Figure 4 is a cross-sectional view showing a state in which the cleaning unit constituting one embodiment of the present invention in Figure 3 is lowered.
5 (a) and 5 (b) are perspective views showing only the cleaning unit and the operation unit constituting one embodiment of the present invention, respectively showing an initial position and a lowered position of the cleaning unit.
6(a) and 6(b) are perspective views each showing a state in which the cleaning unit is lifted in a state in which the operation unit constituting one embodiment of the present invention is installed in the housing;
7(a) and 7(b) are cross-sectional views showing a state in which a cleaning unit and an operation unit constituting an embodiment of the present invention are lifted, respectively, and FIG. 7(c) is a cleaning unit completely returned to an initial position. A cross-section of what it didn't look like.
8 is a cross-sectional view along line II-II' of FIG. 1;
9 is a cross-sectional view taken along line III-III' of FIG. 1;
Figure 10 is a perspective view showing the configuration of a cleaning unit constituting one embodiment of the present invention.
11 is a front view of the configuration of the cleaning unit shown in FIG. 10 viewed from the front;
12(a) and 12(b) are a plan view and a bottom view of the configuration of the cleaning unit shown in FIG. 10 viewed from above, respectively.
13 is a cross-sectional view showing the configuration of an air inlet through which air is introduced in one embodiment of the present invention.
14 is a perspective view showing the configuration of a cleaning unit and an inner housing constituting one embodiment of the present invention.
15 is a front view of the air inlet of the cleaning unit of FIG. 14 viewed through a connection window of the inner housing;
A perspective view of each part in FIG. 16 and FIG. 14 in an exploded view.
Figure 17 is a perspective view of each part disassembled in Figure 14 viewed from a different angle from Figure 16;
18 is a perspective view showing the configuration of a cleaning unit constituting one embodiment of the present invention.
Figure 19 is a perspective view showing the configuration of a cleaning unit constituting one embodiment of the present invention from a different angle from Figure 18;
Figure 20 is a perspective view of the rear so as to expose the connecting bracket portion of the cleaning unit constituting the embodiment of the present invention.
21 is a cross-sectional view taken along line IV-IV' of FIG. 1;
22 is a cross-sectional view taken along line V-V' of FIG. 18;

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

Also, terms such as first, second, A, B, (a), and (b) may be used in describing components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

The present invention relates to a vacuum cleaner, and relates to a cleaner that separates dust using a cyclone flow. In particular, the present invention is a vacuum cleaner including a cleaning unit 110 capable of compressing dust accumulated inside the dust bin from the outside without opening the inlet of the dust bin. Hereinafter, a handheld vacuum cleaner will be described as an example, but it may be applied to other types of cleaners such as canister cleaners.

1 shows an embodiment of the present invention in a perspective view, and FIG. 2 shows a disassembled state of parts. According to what is shown in these figures, first, the exterior and skeleton of the vacuum cleaner of the present invention are formed by the housing 1. In this embodiment, the housing 1 can be largely divided into a first housing 2 and a second housing 3, which have a substantially cylindrical shape. Here, the first housing 2 constitutes a dust bin, and when the lower cover 2' is opened, the dust bin can be opened. In this embodiment, the first housing 2 and the second housing 3 are stacked in an up-and-down direction, but unlike this, the first housing 2 and the second housing 3 are arranged in a left-right direction. may be

Inside the first housing 2, there is an inner space S1, in which a filtering unit 30 to be described later, a cleaning unit 110, an inner housing 40, and the like are installed. The shapes of the first housing 2 and the second housing 3 may be variously modified. A dust collecting space S1 is formed between the inner surface of the first housing 2 and the outer surface of the filtering unit 30, and the dust collecting space S1 can be regarded as an inner space of the first housing 2. Here, the inner surface 20 of the first housing 2 means the inner inner circumferential surface of the first housing 2 corresponding to the opposite side of the outer surface exposed to the outside.

One side of the housing 1 has a handle 5. The handle portion 5 may be made of a separate material from the housing 1 and assembled to the housing 1, or at least part thereof may be integral with the housing 1. The handle part 5 is a part to be gripped by the user, and a switch 6 for on/off operation may be provided on one side. In this embodiment, a battery 7 is mounted below the handle part 5 to supply power for operation of the cleaner.

On one side of the housing 1, there is a suction port 8. The inlet 8 protrudes to the opposite side of the handle part 5, and a suction space 8' is created therein. When the cleaner operates, the suction force by the motor unit 10 is transmitted to the suction port 8, and the outside air mixed with dust passes through the suction port 8 to the cleaner internal space S1 through the suction space 8'. is introduced Although the inlet 8 is briefly represented in FIG. 1, various cleaning equipment (not shown) may be coupled to the front of the inlet 8.

Although it was expressed above as dust mixed in the air, dust can contain foreign matter of various sizes. That is, there may be foreign substances of various sizes, such as very fine foreign substances, hair, sand, or cookie crumbs. Hereinafter, for convenience, they will be collectively referred to as dust.

Although described again below, if the control unit 150 is first described for ease of understanding, as shown in FIG. 1, the control housing 151 constituting the control unit 150 is coupled to the housing 1, and the control housing ( 151 is assembled with a control lever 160 that moves up and down. When the user presses the button portion 165 of the control lever 160 downward, the cleaning unit 110, which will be described below, descends from the inner space S1 of the vacuum cleaner and enters the dust collection space S1 inside the first housing 2. It compresses the dust in and cleans the surface of the filtering unit 30 while sweeping it at the same time. That is, the user can compress the inside of the dust collecting space S1 by lowering the external control lever 160 without opening the inner space S1 of the vacuum cleaner. A more detailed structure will be described again below.

Referring to FIG. 3 , a motor unit 10 is installed inside the second housing 3 . Although not shown, the motor unit 10 in which the second housing 3 is installed provides suction power of the vacuum cleaner, and generates suction power while rotating together with an electric motor that rotates by receiving power from a battery and a rotating shaft of the electric motor. It may include an impeller that generates. As such, the motor unit 10 is installed inside the second housing 3, but only the motor case 12 in which the motor unit 10 is installed is shown in FIG. 3, and the electric motor, rotational shaft and impeller are omitted. there is.

2 and 3, an air guide 21 is installed inside the housing 1. The air guide 21 has a ring shape with a through hole 22 in the center and a narrower width toward the bottom, and the outer surface of the air guide 21 guides the flow of air introduced through the suction passage 51. do. Since the outer surface of the air guide 21 is inclined, the introduced air can be naturally guided downward.

Above the air guide 21, an air guide surface 23 for guiding the flow of air is inclined. The air guide 21 gradually decreases in diameter toward the bottom of the dust collecting space S1, so that the air guide surface 23 naturally becomes an inclined surface. When the cleaning unit 110, which will be described below, is in its initial position (see FIG. 3), since it surrounds the outside of the air guide surface 23, the incoming air does not flow through the air guide surface 23. If the cleaning unit 110 descends and is in the descending position, the air guide surface 23 faces the suction passage 51 connected to the suction port 8, so that it can guide the flow of incoming air. (FIG. 4 reference)

For reference, the initial position means that the cleaning unit 110 moves to the top and is connected to the suction path of the inlet 8, and the descending position means that the cleaning unit 110 descends to the dust collection space S1. ) means a position where dust can be compressed and the outer surface of the filtering unit 30 can be brushed off.

A coupling end 24 protrudes below the air guide surface 23. The coupling end 24 is a part where the air guide 21 is assembled with the filtering unit 30 to be described below, and corresponds to a part that protrudes further downward from the air guide surface 23. An assembly key 27 protrudes from the coupling end 24, and the assembly key 27 is inserted into the assembly groove 36 of the filtering unit 30 to form a gap between the air guide 21 and the filtering unit 30. assembly takes place These assembly keys 27 and assembly grooves 36 may be assembled in a rotational manner.

An assembly boss 26 protrudes from the air guide 21 toward the top, that is, toward the second housing 3 . The assembly boss 26 allows the air guide 21 to be assembled with the motor case 12 inside the second housing 3, and the assembly boss 26 is the same as the motor case 12 and the bolt They can be assembled together with fasteners.

The upper edge of the air guide 21 constitutes a hooking end 28, which is formed around the upper edge of the air guide 21. When the air guide 21 is assembled with the inner housing 40 to be described below, the engaging end 28 engages the relative engaging part 48 at the inner edge of the inner housing 40 . This appearance can be well seen in the enlarged view of FIG. 3 .

The air guide 21 is assembled with the filtering unit 30. The filtering unit 30 has a cyclone installed therein. More precisely, in this embodiment, a first cyclone unit (not referenced) and a second cyclone unit 37 are provided inside the cleaner, and the inside of the filtering unit 30 includes a second cyclone unit. (37) is installed. Since the first cyclone unit and the second cyclone unit 37 are provided, dust can be more effectively filtered out. In this embodiment, the first cyclone unit is not installed as a separate component, but is constituted by the inner surface 20 of the housing 1, the air guide 21, and the cleaning unit 110.

The filtering unit 30 is installed in the center of the inner space S1 of the first housing 2 to create a dust collection space S1 between the inner surface of the first housing 2. The dust collection space (S1) is made in the lower part of the inner space (S1) of the first housing (2), it can be seen as a first dust storage unit (S2) in which dust accumulates.

At this time, the second cyclone part 37 may be located inside the first cyclone part so that the size of the housing 1 is minimized. Referring to FIG. 3 , the second cyclone unit 37 may include a plurality of cyclone bodies 37 arranged in parallel. Air may flow through the passage 38 of the cyclone body 37, and air rises and foreign substances fall downward by centrifugal force in the passage 38.

A dust guide 31 may be provided below the second cyclone part 37 . The dust guide 31 includes a guide body 32 whose width becomes narrower downward like a kind of hopper, and the inside of the guide body 32 stores the dust separated from the second cyclone unit 37. The second dust storage unit (S3) is partitioned. The second dust storage unit (S3) is formed in the center of the first dust storage unit (S2), and can be distinguished by the guide body (32).

Referring to FIG. 3 , air flow in the vacuum cleaner will be described. Air (in the direction of the arrow ①) sucked in through the inlet 8 by the operation of the motor unit 10 and dust are separated from each other while flowing along the inner circumferential surface of the first cyclone unit.

The dust separated from the air flows downward (in the direction of the arrow ②) and is stored in the first dust storage unit S2. The air separated from the dust flows into the second cyclone unit 37. At this time, the air passes through the filtering unit 30 (in the direction of the arrow ③), and passes through the mesh network 35 on the outer surface of the filtering unit 30 in the process of passing through the filtering unit 30. In this process, dust with large particles may be filtered through narrow holes in the mesh 35.

The air flowing into the second cyclone unit 37 is separated from dust once again by centrifugal force. The dust separated from the air in the second cyclone unit 37 flows downward and is stored in the second dust storage unit S3. (arrow ④ direction)

Meanwhile, air separated from dust in the second cyclone unit 37 is discharged from the second cyclone unit 37 and rises toward the motor unit 10 (arrow ⑤ direction). passes through a pre-filter (not shown) on the outside of After passing through the pre-filter, the air passes through the motor unit 10, passes through the HEPA filter in the discharge space S4 of the second housing 3, and is discharged to the outside through the air outlet 3'. (Arrow ⑥ direction) Here, at least one of the pre-filter and the HEPA filter may be omitted.

At this time, the dust separated from the cyclone unit is accumulated in the first dust storage unit S2 and the second dust storage unit S3. Since the dust is light, when the user opens the first housing 2, which is a dust bin, The dust scatters to the outside. That is, there is a problem in that it is difficult to throw away because the dust is collected inside the dust bin but does not clump together. In this embodiment, there is a cleaning module 100 to solve this problem, the cleaning module 100 includes a cleaning unit 110 for compressing dust and a control unit 150 for moving the cleaning unit 110 .

For reference, a state in which the cleaning unit 110 descends to remove dust attached to the outer surface of the filtering unit 30 is illustrated in FIG. 4 . Referring to FIG. 4 , the cleaning body 120 and the cleaning ring 130 constituting the cleaning unit 110 are lowered toward the lower portion of the dust collecting space S1. While the cleaning unit 110 descends, the cleaning unit 110 compresses the dust, and the cleaning ring 130 pushes the dust attached to the outer surface of the filtering unit 30 downward. Referring to FIG. 4 , dust on the upper part pressed by the cleaning body 120 and the cleaning ring 130 is in a compressed state. These configurations will be described again below.

Referring back to FIG. 2 , a mesh network 35 is provided on the outer surface of the filtering unit 30 . The mesh network 35 is installed in the filtering unit 30 to cover the outer surface of the filtering unit 30, and the dust contained in the air flowing from the dust collecting space S1 to the second cyclone unit 37 plays a role in filtering To this end, the mesh net 35 has a plurality of holes, and when a vacuum cleaner is used, the holes may be clogged or narrowed by dust, so cleaning is required. The cleaning of the mesh 35 may be performed by the cleaning unit 110 .

An inner housing 40 is installed above the filtering unit 30 . The inner housing 40 is installed in the inner space S1 of the housing 1. In this embodiment, a part of the inner housing 40 is disposed inside the first housing 2, and the remaining part is disposed inside the second housing. It is placed inside (3). The inner housing 40 has a substantially circular frame shape, and surrounds the outside of the air guide 21 and the cleaning unit 110 when installed in the inner space S1.

At the center of the inner housing 40, there is a through space 41 open up and down, and it can be seen that the air guide 21 and the cleaning unit 110 are located in the through space 41. As shown in FIG. 3, there is a cleaning unit 110 in an initial position inside the inner housing 40, and an air guide 21 is located inside the cleaning unit 110 again. It may be seen that the inner housing 40 serves to guide at least a part of the lifting process of the cleaning unit 110 by wrapping around the initial position of the cleaning unit 110 .

A communication window 42 is opened on one side of the inner housing 40 . The communication window 42 is a part connecting the suction passage 51 connected to the suction port 8 and the internal space S1, and referring to FIG. 17, in this embodiment, it has a substantially 'D' shape. The inlet 8 and the cleaning unit 110 located inside may be connected to each other through the communication window 42 .

A seal 43 is coupled to the outer surface of the inner housing 40 . The seal 43 is installed along the outer surface of the inner housing 40 to limit air flow between the upper and lower portions based on the seal 43 . That is, the seal 43 induces air to flow only along a predetermined path. For reference, the inner housing 40 may be omitted, or the first housing 2 or the second housing 3 may be made as a part.

Referring to FIG. 2 , a suction housing 50 is connected to the suction port 8 . The suction housing 50 may be assembled in a form surrounding the suction port 8 or integrally formed with the suction port 8 . The suction housing 50 connects the suction port 8 and the housing 1, and has a larger diameter than the suction port 8. Inside the suction housing 50, a suction passage 51 connected to the suction space 8' of the suction port 8 is formed.

Next, the cleaning module 100 will be described. The cleaning module 100 is largely composed of a cleaning unit 110 and a control unit 150 for operating the cleaning unit 110 . As shown in FIG. 2 , the cleaning unit 110 and the operation unit 150 are separate objects and may be assembled to form one cleaning module 100 . At least some components, including the operating lever 160 of the operating unit 150, protrude outward from the housing 1, so that the user can use the cleaning module 100 even outside the housing 1.

5 shows only the cleaning module 100 constituting this embodiment. As shown in FIG. 5, the operation unit 150 constituting the cleaning module 100 is installed in an erected form along the elevation direction of the cleaning unit 110, and the cleaning unit 110 is perpendicular to the operation unit 150. is installed as It can be seen that the cleaning unit 110 extends from the control unit 150 in a kind of cantilever shape. Therefore, the cleaning unit 110 tends to be eccentric during the lifting process. When the cleaning unit 110 is eccentric, it interferes with the filtering unit 30 located in the middle, and thus the lifting operation may be hindered. The structure of the spacing rib 127 to solve this will be described below.

5(a) shows a state in which the cleaning unit 110 is in the initial position, which is the first position, and FIG. 5(b) shows a state in which the cleaning unit 110 is lowered and is in the second position, which is the lowered position. it is depicted In the process of moving the cleaning unit 110 from the initial position to the lowered position, the cleaning unit 110 compresses the dust in the dust collecting space S1 and removes the dust attached to the mesh 35 downward. For reference, even though the cleaning unit 110 in FIG. 4 is in a descending position, it is not in a state of descending to the bottom, but can be seen as a state in which the descending has started. In FIG. 5 (b), the cleaning unit 110 is in a lowered position that has moved relatively downward.

Looking at the structure of the operation unit 150, the operation housing 151 of the operation unit 150 is coupled to the outer surface of the housing 1 described above, and is vertically spanned from the first housing 2 to the second housing 3. extends in the direction The control housing 151 has a total of two rails, a fixed rail 172 and a movable rail 175. Both the fixed rail 172 and the movable rail 175 are installed in the longitudinal direction (vertical direction) of the control housing 151, the fixed rail 172 is fixed, and the movable rail 175 is the cleaning unit 110 ) to ascend with In this embodiment, both the fixed rail 172 and the movable rail 175 are in the shape of a thin and long elongated rod.

The control lever 160 is connected to the fixed rail 172 so that the control lever 160 can move up and down along the fixed rail 172 . The control lever 160 has a button part 165. The control lever 160 is located inside the control housing 151 and is not exposed, but the button part 165 is exposed to the outside of the control housing 151. so that the user can press it. When the user presses the button unit 165, the control lever 160 descends along the fixed rail 172 while simultaneously lowering the movable rail 175.

More precisely, a connection block 170 is connected to the button part 165, and the connection block 170 is located inside the control housing 151 and moves up and down along the button part 165. The connection block 170 is connected to the movable rail 175 while being inserted into the fixed rail 172 so as to move up and down along the fixed rail 172 . Therefore, the connection block 170 moves up and down along the fixed rail 172 together with the button unit 165, and in the process, the movable rail 175 moves up and down. As shown in FIG. 5 (a), the connection block 170 is installed in a direction crossing the fixed rail 172 and the movable rail 175. Reference numeral 163 denotes a pressing end coupled to the connection block 170, and is a part that presses and compresses the spring 173 when the connection block 170 descends.

Reference numeral 173 is a spring 173, which is assembled to the fixed rail 172 in a form fitted to the fixed rail 172, and is located below the control lever 160. The spring 173 is compressed in the process of the connection block 170 descending together with the control lever 160, and when the force pressing the button 165 is removed, it is restored to its original position, and the control lever 160 is restored to its original position. That is, it returns to the state shown in FIG. 5(a). Of course, this spring 173 may be omitted.

The movable rail 175 is installed in the control housing 151, is connected to the control lever 160, and can be moved up and down together with the control lever 160. One end of the movable rail 175 is connected to the connection plate 128 of the cleaning unit 110 to be described below. Therefore, the movable rail 175 and the cleaning unit 110 are lifted together. The connection part between the movable rail 175 and the cleaning unit 110 is a part where the load due to external force is concentrated, so damage or deformation can easily occur. will be explained again below.

6 shows a state in which the operation unit 160 is installed in the housing 1. 6(a) is a state in which the cleaning unit 110 is in an initial position, which is the original position, and FIG. 6(b) is a state in which the cleaning unit 110 is in a lowered position. The inner surface of the housing 1 has an elevation channel GH. The elevating channel GH extends along the elevating direction of the cleaning unit 110 on the inner surface 20 of the housing, and the inner surface 20 is formed in a shape further recessed inward.

The connection bracket 149 provided in the cleaning unit 110 is inserted into the elevation channel GH, and the connection bracket 149 is attached to the movable rail 175 of the control unit 150 in the elevation channel GH. Connected. The connecting bracket 149 is located on a reinforcing plate 140 reinforcing the connecting plate 128 of the cleaning body 120 constituting the cleaning unit 110 as will be described below.

A filter rib R protrudes from the inner surface 20 of the housing 1. The filter rib R extends along the ascending direction of the connection bracket 149 and serves to reduce the gap between the inner surface 20 of the housing 1 and the outer surface of the connection plate 128. The filter rib R may be present only in a part of the entire height of the inner surface 20 of the housing 1, but in this embodiment, it is equal to or longer than the elevation section of the connection bracket 149.

Of course, it may be made shorter than the lifting section of the connecting bracket 149. For example, filter ribs R are formed around the connection bracket 149 at the initial position of the cleaning unit 110 where cleaning is performed while external air is sucked in. In this case, the total length of the filter rib (R) may be shorter than the elevation section of the connection bracket (149).

The filter rib R is provided adjacent to the elevation channel GH, and is provided on a side close to the entrance Ea of the guide passage E for guiding the air flow among the left and right sides of the elevation channel GH. Therefore, the filter rib R blocks the air that penetrates between the inner surface 20 and the cleaning unit 110 of the housing 1 from among the air flowing along the guide passage E, so that the inside and It is possible to prevent dust from entering the connection bracket 149.

The filter rib R may be made along a straight section as shown in FIG. 6, but may also be extended in an oblique direction, and other shapes other than straight lines are also possible. For example, the filter rib (R) may be made in a 'c' shape to surround the periphery of the elevating channel (GH) into which the connection bracket 149 is inserted, or two or more may be provided side by side. The function of the filter rib R will be described again below.

Referring to FIG. 21 , the cross section of the filter rib R has a shape in which the width gradually decreases toward the outer surface of the connection plate 128 . In this embodiment, the cross section of the filter rib (R) has a semicircular shape, and when the cross section of the filter rib (R) is gradually reduced in width toward the outer surface of the connection plate 128, in the lifting process of the cleaning unit 110 Even if the connection plate 128 and the filter rib R interfere, friction can be reduced by line contact.

7 shows a state in which the cleaning unit 110 and the control unit 150 are elevated. FIG. 7(a) shows the cleaning unit 110 in an initial position, and FIG. 7(b) shows the cleaning unit 110 in a lowered position. As described above, the cleaning body and the cleaning ring constituting the cleaning unit 110 move up and down in conjunction with the control unit 150, and when they are in the initial position, they are completely raised by the elastic member 173 and the air guide 21 becomes attached to

Further, when the cleaning unit 110 descends, it is separated from the air guide 21 and moves downward in the dust collection space S1 and passes through the surface of the filtering unit 30 . In this process, the cleaning unit 110 compresses the dust in the dust collecting space S1 and shakes off the dust attached to the mesh 35 on the outer surface of the filtering unit 30.

As shown in FIG. 7 (b), the cleaning unit 110 in the lowered position rises again and automatically returns to the initial position, which is caused by the elastic member 173 of the control unit 150. However, the cleaning unit 110 may not return to its original position. For example, (i) while the cleaner is being used with the cleaning unit 110 positioned at the initial position, some of the air sucked into the gap between the cleaning unit 110 and the inner surface 20 of the housing 1. It flows and accumulates on the connection bracket 149, or (ii) when the cleaning unit 110 is lifted, dust existing in the dust collection space S1 can fall upwards on the cleaning unit 110 and accumulate on the connection bracket 149. there is.

In this case, the cleaning unit 110 cannot return to the initial position, and FIG. 7(c) shows this state. When the dust Z accumulated on the upper surface of the connection bracket 149 is compacted, it has a predetermined height, and therefore cannot return as much as the height of the dust. Of course, in the present invention, this concern is prevented through various structures including the filter rib (R), which will be described below.

Next, the cleaning unit 110 will be described again. The cleaning unit 110 is installed to surround the filtering unit 30 and is moved up and down in the dust collection space S1 by the operation unit 150 . At this time, at least a part of the cleaning unit 110 is connected to the air intake path extending from the intake port 8 at the initial position and serves to guide the flow of air. Here, being connected to the intake path means that at least a part of the cleaning unit 110 is positioned on the air intake path, and the intake path includes the intake space 8 'of the intake port 8 and the intake of the intake housing 50. It can be seen as including the flow path 51.

That is, the cleaning unit 110 (i) serves to guide the flow of the sucked air in the initial position, (ii) compresses the dust in the dust collection space (S1) in the process of descending, and (iii) moves up and down. The guide end GE of the cleaning unit 110 sweeps the mesh 35 of the filtering unit 30 to remove dust.

Referring to FIG. 8 , it can be seen that the cleaning unit 110 is connected to the suction passage 51 of the suction housing 50 . Reference numeral Ea denotes the entrance Ea of the guide passage E, and air can spirally flow along the guide passage E (see FIGS. 9 and 12). That is, the cleaning unit 110, the inner surface 20 of the housing 1, and the air guide 21 form a first cyclone portion so that the sucked air primarily flows in the cyclone.

As will be described again below, when looking at the entrance Ea of the guide passage E, the entrance Ea of the guide passage E is relatively high between the guide wall 121 of the cleaning body 120 and the guide fence. (124B), and a second guide passage (E2) made between the guide end (GE) and the inner surface (20) of the housing (1) located at a relatively lower portion. .

9 is a view of the cross-sectional structure of the vacuum cleaner viewed from the bottom so that the suction port 8 and the suction passage 51 can be clearly seen. The outside air is introduced into the inside along the suction space 8' inside the suction port 8 and passes through the suction passage 51 of the suction housing 50 (direction of arrow ①). It comes inward through (123). The air inlet 123 is made at the entrance Ea of the guide passage E of the cleaning unit 110 and is connected to the suction path. In the air inlet 123, a part of the guide fence 124B is omitted and serves to communicate the air flow path with the intake port 8. Referring to FIG. 8 , the air inlet 123 is connected to the suction passage 51 through the communication window 42 of the inner housing 40 .

Referring to FIG. 9 again, the air inlet 123 opens the entrance Ea of the guide passage E, and the air sucked in from the entrance Ea of the guide passage E and the dust contained in the air are cleaned. It hits the unit 110 strongly. Dust may be further introduced into the inside along the guide passage E after the collision.

At this time, if the flat foreign matter is introduced in the upright direction (the direction of height compared to width), it can smoothly pass through the entrance (Ea) of the narrow guide passage (E), but in the direction in which the foreign matter is laid down (the direction of height compared to height) When introduced with a strong force in this wide direction), after colliding with the cleaning unit 110, it bounces toward the inner surface 20 of the housing 1 or the inner surface 41 'of the inner housing 40 by the reaction force and is sandwiched between them. afraid to throw away However, in the present invention, such jamming is prevented by a guide end GE to be described below.

On the other hand, the suction housing 50 has a guide blade 55. As shown in FIGS. 3, 8 and 9, the guide blade 55 has a plate-shaped structure installed in a direction blocking one side of the outlet Eb of the suction passage 51. The guide blade 55 sets the path of the inhaled air, more precisely, induces the flow of air to the inlet (Ea) of the guide passage (E).

9 and 10, a duct blade 124A is installed in the cleaning body 120 of the cleaning unit 110, and the duct blade 124A is erected in a direction blocking one side of the air inlet 123. . The duct blade 124A allows an air passage to be formed in one direction relative to the duct blade 124A, that is, at the entrance Ea of the guide passage E. In addition, the duct blade 124A has a shape elongated in the elevating direction of the cleaning unit 110, and thus has a function of reinforcing the strength of the cleaning body 120.

As shown in FIG. 9 , the duct blade 124A of the cleaning unit 110 and the guide blade 55 of the suction housing 50 are continuously arranged along a virtual extension line L1. That is, the duct blades 124A and the guide blades 55 create one continuous air flow path, allowing the sucked air to flow to the inlet Ea of the guide passage E through the air inlet. In this embodiment, the virtual extension line (L1) is a straight line, otherwise, it may be a curved line or a line bent with a predetermined angle.

Next, the cleaning unit 110 will be examined in more detail with reference to FIGS. 10 to 12 . Referring to FIG. 10 , the cleaning unit 110 is largely composed of a cleaning body 120 and a guide end GE. The cleaning body 120 is a ring-shaped structure forming the skeleton of the cleaning unit 110, and the guide end GE extends further from the lower end of the cleaning body 120. In this embodiment, the guide end GE is composed of the coupling end 122 of the cleaning body 120 and the cleaning ring 130, which will be described below. Unlike this, only the cleaning ring 130 supports the guide end GE. can also be configured. The guide end GE has a ring shape forming a closed curve path, and at least a part of the section is located on the air intake path extending from the intake port 8 to guide the flow of the intake air.

The cleaning body 120 surrounds the filtering unit 30 in a substantially ring shape and is connected to the operation unit 150 . The cleaning body 120 includes a guide wall 121 and a guide fence 124B, and the guide wall 121 and the guide fence 124B are integrally connected to each other. The guide wall 121 continuously extends in the circumferential direction of the cleaning body 120, but has an inclined surface on the surface and the guide end GE is provided on the lower part.

And the guide fence 124B extends parallel to the guide wall 121 and is spaced apart from the guide wall 121 in the direction of the inner surface 20 of the housing 1 so that air between the guide wall 121 and the guide fence 124B is formed. Creates a guide euro (E), which is a euro. As shown in FIG. 8, since the guide fence 124B is formed at one end of the inlet 8 along the height direction of the inlet 8 (vertical direction based on the drawing), the height of the guide passage E At least the height of the guide fence 124B may be made.

More precisely, since the guide fence 124B is omitted in the air inlet 123, a guide passage E is created between the outer surface of the guide wall 121 and the inner surface 20 of the housing 1, but the guide is more inward. A guide passage E is formed between the outer surface of the wall 121 and the inner surface of the guide fence 124B (124B1, see FIGS. 8 and 9). That is, the guide wall 121 and the guide fence 124B constitute a kind of guide duct CB. Since the guide passage E is open toward the dust collecting space S1 at the bottom, the flowing air can be guided downward.

Looking at the guide fence 124B, the guide fence 124B is provided along the outer edge of the cleaning body 120 constituting the cleaning unit 110, and the inner surface 20 of the housing 1 and While facing each other and extending along the inner surface 20 of the housing 1, the guide passage E is made inward. That is, the guide fence 124B is in close contact with the inner surface 2 of the housing 1 or is located at a predetermined distance, so that air flows between the guide fence 124B and the inner surface 20 of the housing 1. is to avoid doing it.

As shown in FIGS. 7 to 10, the front portion 124B' is provided at the front of the guide fence 124B. The front part 124B' means the front end where the guide fence 124B starts, in other words, it may be referred to as the front closest to the air inlet 123 in the guide fence 124B. The front part 124B' extends to the front part of the air intake path to guide the initial flow of air.

More precisely, as shown in FIG. 9, the front part 124B' of the guide fence 124B is a guide passage E of the cleaning unit 110, More precisely, it extends to a position closer to the inlet 8 than the point K of the guide fence 124B meets the inner surface 124B1. As described above, the suction path can be seen as including the suction space 8 'of the suction port 8 and the suction passage 51 of the suction housing 50.

9, the suction passage 51 connected to the suction space 8' extends in a slightly oblique direction from the suction space 8'. As described above, the suction passage 51 has a duct blade 124A And the guide blades 55 are arranged continuously along the imaginary extension line (L1) to form a suction path in a substantially straight direction. In addition, this intake path is bent in the circumferential direction only as it passes through the guide passage E, and the flow of air passing through it is also made in a circular direction.

In other words, the inhaled air initially moves along an approximately linear intake path (see M in FIG. 9), then flows in a curved direction while passing through the inlet (Ea) of the guide passage (E), resulting in a cyclone flow. will be.

At this time, as described above, the front part 124B' of the guide fence 124B is above the point K where the air intake path meets the inner surface of the guide passage E of the cleaning unit 110. Since it extends to a position closer to the suction port 8, the end portion K of the virtual extension line M extending along the direction of the air intake path is higher than the front portion 124B' of the guide fence 124B. The inside of the flow path (E) meets the inner surface of the guide flow path (E).

In this case, since the sucked air meets the front part 124B' of the guide fence 124B before being accelerated while rotating in earnest, the sucked air moves between the inner surface 20 of the housing 1 and the guide fence 124B. It can be prevented from escaping through the gaps (N, see FIGS. 9 and 11) between them. For reference, in this embodiment, since the inner housing 40 is installed on the inner surface 20 of the housing 1, as shown in the enlarged view of FIG. It is prevented from escaping through the gap N between the inner surface 41' of the inner housing 40 and the guide fence 124B. Of course, if the inner housing 40 is omitted, the front part 124B' of the guide fence 124B is the air escaping through the gap N between the inner surface 20 of the housing 1 and the guide fence 124B. will block

Conversely, it means that the inhaled air flows only through the guide passage E without falling into another path. Therefore, the dust separation efficiency of the vacuum cleaner is improved, and air is introduced into the gap (N) between the inner surface (41') of the inner housing (40) and the guide fence (124B) to the outer surface of the guide fence (124B). It is possible to prevent dust from dropping on the upper surface of the connection bracket 149 while moving on the .

The front part 124B' of the guide fence 124B may be formed with different degrees of protrusion toward the air inlet 123 along the ascending and descending direction of the cleaning unit 110 . Referring to FIG. 13, the front part 124B' of the guide fence 124B has an upper part 124B1 than the lower part 124B2 based on the elevating direction of the cleaning unit 110 (up and down direction with reference to FIG. 13). is to further protrude toward the air inlet 123. Of course, on the contrary, the front part 124B' of the guide fence 124B has a lower part 124B2 than the upper part 124B1 based on the elevating direction of the cleaning unit 110 (up and down direction with reference to FIG. 13). It may further protrude toward the air inlet 123.

When the front part 124B' of the guide fence 124B is formed with a different degree of protrusion toward the air inlet 123 along the ascending and descending direction of the cleaning unit 110, the sucked air is passed through the guide fence. The area of the first contact with the front portion 124B' of the 124B may be reduced. For example, if the front part 124B' of the guide fence 124B is a plane made with the same degree of protrusion toward the air inlet 123, the sucked air collides with the entire front part 124B' , the probability of dust being caught increases.

However, according to this embodiment, the dust may naturally flow to one side along the front part 124B'. In this embodiment, the front part 124B' has an upper part 124B1 than the lower part 124B2 based on the lifting direction of the cleaning unit 110 (up and down direction with reference to FIG. 13), the air inlet 123 Since it protrudes further toward the side, the area where the inhaled air collides with the guide fence 124B is reduced, and the dust is naturally guided from the upper part 124B1 to the lower part 124B2 so that it does not get caught in front of the front part 124B'. . The front part 124B' of the guide fence may be formed as a continuous curved surface or inclined surface along the ascending and descending direction of the cleaning unit 110 so that such a flow occurs naturally.

In addition, the front part 124B' of the guide fence 124B may be formed to gradually decrease in thickness toward the air inlet 123 so as to better guide the dust. In this case, the area where the sucked air collides with the guide fence 124B may be further reduced. For example, both corners of the front portion 124B' may be formed to be inclined, so that the thickness of the front portion 124B' may be thin, but as shown in the enlarged view of FIG. 9, both sides of the front portion 124B' Of the corners, a portion facing the inner surface 41' of the inner housing 40 is flat, and a portion facing the guide passage E may be made of a curved surface or an inclined surface. In this way, the air can be more naturally guided toward the guide passage E.

As shown in FIG. 13, a coupling end 122 is provided at the lower end of the guide wall 121. The coupling end 122 is a portion extending downward from the lower end of the guide wall 121, to which the cleaning ring 130 is coupled. The surface of the coupling end 122 and the surface of the cleaning ring 130 may form the guide end GE to form the guide slope 135 . That is, the surface of the coupling end 122 extends downward toward the dust collecting space S1, so that an inclined surface is formed on the surface. This inclined surface induces some of the reaction force generated when a large foreign object collides downward. A more detailed configuration of the coupling end 122 will be described again below.

The guide wall 121 is provided in an inclined direction with respect to the ascending and descending direction of the cleaning unit 110, and guides the flow of air sucked through the inlet 8 when the cleaning unit 110 is in an initial position. . Referring to FIG. 13 , it can be seen that the outer surface of the guide wall 121 extends obliquely, and since it extends obliquely downward, air can naturally flow downward.

Preferably, the guide wall 121 of the cleaning body 120 extends obliquely so that the gap between the guide wall 121 and the inner surface 20 of the housing 1 increases toward the lower portion toward the guide end GE, In addition to guiding the flow downward, the width of the guide wall 121 can be widened to improve air flow.

10 and 11, the guide wall 121 and the guide fence 124B have the highest height at the entrance Ea of the guide passage E, and gradually decrease in height along the circumferential direction to guide the passage ( The height is the lowest near the duct blade 124A corresponding to the outlet Eb of E). Therefore, the cross-sectional area of the guide passage E also gradually decreases along the direction of travel of the guide passage E, and at the same time, the guide passage E creates an air flow path that gradually lowers downward toward the outlet Eb. This structure serves to form the cyclone flow by the first cyclone unit.

The cleaning body 120 has a connecting plate 128 . As shown in FIGS. 10 and 11 , the connecting plate 128 has a plate-shaped structure extending in the lifting direction of the cleaning unit 110 and is lifted while being in close contact with the inner surface 20 of the housing 1 . The connection plate 128 is a part for connecting the control unit 150 and the cleaning body 120.

The cleaning body 120 can be regarded as extending in a kind of cantilever shape from the operation unit 150 (see FIG. 5), so a large load is applied to the connection between the operation unit 150 and the cleaning body 120. . Therefore, it is necessary to reinforce these connecting parts, and for this purpose, the connecting plate 128 may extend along the lifting direction of the cleaning unit 110 to provide a wide connecting part. In this embodiment, the reinforcing plate 140 is overlapped again on the connection plate 128 to further reinforce the strength of the connection portion, which will be described below.

The connection plate 128 extends while being gradually narrowed in left and right width as the distance from the cleaning body 120 increases. The volume occupied by the connection plate 128 in the dust collecting space S1 can be reduced through the gradually narrowing left and right widths, and the flow of air can not be disturbed. In addition, a connection bracket 149 connected to the control unit 150 is provided at the end of the narrower connection plate 128 so that the connection plate 128 may be directly connected to the control unit 150, but in this embodiment In is connected to the control unit 150 through the reinforcing plate 140 to be described below. In FIG. 8, reference numeral 128' denotes an assembly groove allowing the connection bracket 149 to protrude rearward.

Referring to FIG. 12 (a), the guide passage E made between the guide wall 121 and the guide fence 124B is continuously formed along the circumferential direction from the entrance Ea to the exit Eb, Arrow A indicates the path through which air is introduced and flowed. The guide passage E extends with a certain width, and then the width narrows at the outlet Eb, that is, the duct blade 124A, so that the flow of air can be accelerated. In this embodiment, the guide wall 121 is provided along the entire path of the guide passage E, but the guide fence 124B is omitted from the air inlet 123 for the inflow of air through the suction port 8. there is.

On the other hand, the upper surface cleaning part 125 is formed on the upper surface of the cleaning body 120 corresponding to the opposite side of the guide passage E. The upper surface cleaning unit 125 is formed in a continuous path along the circumferential direction of the cleaning body 120. When air flows toward the upper surface cleaning unit 125, dust accumulated on the upper surface of the cleaning body 120 can be removed. . Most of the sucked air flows along the guide passage E, but some of the air flows into the upper part of the cleaning body 120, and dust may accumulate on the upper surface of the cleaning body 120, and the cleaning unit 110 is lowered. Dust may accumulate on the upper surface of the cleaning body 120 even when air is introduced from the cleaning body 120 . This dust can be removed through the structure of the top surface cleaning unit 125.

Referring to FIG. 10 , the upper surface cleaning unit 125 has an inlet Oa starting from a position adjacent to the air inlet 123 that is higher than an outlet Ob of the upper surface cleaning unit 125 . That is, the height of the upper surface cleaning part 125 gradually decreases along the circumferential direction from the inlet Oa to the outlet Ob. The first section 125a constituting the top cleaning part 125 is the highest part, and the second section 125b extending from the first section 125a has a lower height than the first section 125a. And the third section 125c is a part close to the duct blade 124A, which is the outlet Ob, and has the lowest height.

At this time, the height may gradually decrease from the first section 125a to the third section 125c, but the middle portion may become slightly higher again. For example, in order to reinforce the strength of the cleaning body 120, there may be a section in which the height of the upper surface cleaning unit 125 is increased again. .

An upper fence 125' protrudes from the edge of the cleaning body 120. The upper fence 125' forms a flow path for air passing through the upper surface cleaning unit 125, and protrudes upward from the upper surface edge of the cleaning body 120 to constitute a part of the upper surface cleaning unit 125, and the housing It faces the inner space (S1) of (1). The upper fence 125' exists in the first section 125a and the second section 125b, but may be omitted in the third section 125c. This is because the third section 125c is a section through which air flowing in the circumferential direction is discharged.

Referring to FIG. 12(b), the widths of the first section 125a and the second section 125b are similar, but the width of the third section 125c is relatively narrow. Therefore, the outlet (Ob) part of the upper surface cleaning unit 125 can create a spaced space between the inner surface 20 of the housing 1, and the flowing air moves toward the dust collection space S1 through the spaced space. can descend In FIG. 12( b ), an arrow A' indicates a direction in which the air introduced into the upper part of the cleaning body 120 flows along the upper cleaning part 125 .

Referring to FIG. 13 , the configuration of the cleaning unit 110 at a portion adjacent to the air inlet 123 is shown in a cross-sectional state. 13 shows a state in which the cleaning unit 110 is in the initial position, and as shown therein, the cleaning unit 110 is positioned overlapping the air guide surface 23 of the air guide 21 . Since the cleaning unit 110 is relatively located outside, the incoming air is guided by the cleaning unit 110 .

Looking at the passage through which air is introduced, the guide passage E becomes a passage, and looking at the entrance Ea of the guide passage E, the guide wall 121 of the cleaning body 120 and the guide fence ( 124B) and a second guide passage E1 formed between the guide ends GE and the inner surface 20 of the housing 1, located at a relatively lower portion. These are connected at the air inlet 123, but the air inlet 123 may be seen as a part of the guide passage (E). The first guide passage E1 and the second guide passage E2 may be equally configured along the guide passage E as well as the entrance Ea of the guide passage E.

The cleaning body 120 constituting the cleaning unit 110 has a guide wall 121, and the guide wall 121 faces the bottom surface of the dust collecting space S1 and has the same height as the housing 1 ) The distance from the inner surface 20 gradually increases. Therefore, an inclined surface is formed on the outer surface of the guide wall 121, and air can be guided downward.

The lower end of the guide wall 121 has a coupling end 122. The coupling end 122 constitutes a guide end GE together with a cleaning ring 130 to be described below. The guide end GE extends toward the bottom of the dust collecting space S1, and the surface of the guide end GE toward the inner surface 20 of the housing 1 faces toward the bottom of the dust collecting space S1. The beam extends obliquely so that the distance between the beams and the inner surface 20 of the housing 1 at the same height increases. In other words, the guide end GE extends toward the bottom of the dust collection space S1 such that the diameter of the cleaning unit 110 becomes smaller. Accordingly, the guide slope 135 is formed on the surface of the guide end GE, and the width of the guide passage E may increase toward the lower part of the guide end GE.

In this embodiment, the cleaning ring 130 is coupled to the lower end of the guide wall 121 of the cleaning body 120. The cleaning ring 130 is coupled to the coupling end 122 at the lower end of the guide wall 121 and lifts together, compressing dust during the lifting process and dusting off the dust attached to the mesh 35. also do The cleaning ring 130 is made of an elastic material, such as rubber or silicone, so that the cleaning unit 110 can move up and down more smoothly while being deformed to some extent during compression. Of course, since the cleaning ring 130 is made of an elastic material, it is also advantageous to clean the outer surface of the mesh net 35.

The cleaning ring 130 has a substantially ring shape, and is coupled to the coupling end 122 of the guide wall 121 through double injection in this embodiment. The front surface 135 of the cleaning ring 130 coupled to the coupling end 122 faces the inner surface 20 of the housing 1, and the rear surface 134 of the cleaning ring 130 faces the cleaning unit 110. In the process of descending, it faces the surface of the filtering unit 30 . Since the front surface 135 of the cleaning ring 130 is also the guide inclined surface 135 after all, the same reference numerals are given.

Referring to FIG. 13, looking at the coupling portion between the cleaning ring 130 and the guide wall 121, the upper surface 132 of the cleaning ring 130 has an upper surface coupling portion 132a and a first side coupling portion 132b. Connected orthogonally, there is a bottom surface coupling portion 122a and a second side coupling portion 122b on the bottom surface of the coupling end portion 122 engaged therewith. These have an approximate 'L'-shaped cross-sectional shape, which widens the coupling area between the cleaning ring 130 and the guide wall 121.

In this way, even if the upper surface 132 of the cleaning ring 130 and the lower surface of the guide wall 121 are engaged and coupled, the front surface 135 and the rear surface 134 of the cleaning ring 130 are covered by the guide wall 121. Although the bonding force may be relatively weak compared to the present embodiment, the guide wall 121 is provided with a support rib 126 to compensate for this.

10 and 14, the cleaning unit 110 has a support rib 126. The support rib 126 further protrudes downward from the bottom of the cleaning body 120, more precisely, from the coupling end 122 of the guide wall 121. The support ribs 126 protrude toward the bottom of the dust collecting space S1 to support the rear surface 134, which is opposite to the guide inclined surface 135 of the cleaning ring 130. That is, the support rib 126 supports a portion corresponding to the bottom surface of the cleaning ring 130 from the rear.

A plurality of support ribs 126 are provided around the cleaning body 120, and at least a part of the support ribs 126 protrudes to the same length as the lower end of the cleaning ring 130 or extends from the cleaning ring 130. It protrudes more than the bottom.

In this embodiment, the cleaning ring 130 is coupled to the cleaning body 120 through double injection. The cleaning ring 130 may be deformed due to a high temperature environment during the double injection process, but the support rib 126 prevents this. In addition, the support rib 126 can prevent the cleaning ring 130 from being curled even during the lifting process of the cleaning unit 110 . Of course, the cleaning ring 130 may be attached to the cleaning body 120 with an adhesive, or may be assembled in various directions such as an interference fitting structure and a protrusion coupling structure.

In addition, the support rib 126 has a gap maintaining rib 127 protruding, and since the gap maintaining rib 127 extends in the lifting direction of the cleaning unit 110, the cleaning unit 110 moves up and down. The eccentricity of (110) can be prevented. If there is no spacing rib 127, when the cleaning unit 110 is eccentric, the cleaning ring 130 made of a flexible material may be rolled up or turned over while rubbing with the mesh 35, the spacing rib 127 can solve these problems.

Referring to FIG. 13, the coupling end 122 has a step 122'. The step 122' is made so that the coupling end 122 protrudes more toward the inner surface 20 of the housing 1 than the cleaning ring 130, which means that the thickness of the coupling end 122 is the cleaning ring ( 130) can also be expressed as thicker. Through this step 122', the bottom surface of the coupling end 122 to which the cleaning ring 130 can be coupled through double injection is wider, enabling stable coupling and facilitating the double injection operation.

Referring to FIG. 14 , a state in which the cleaning unit 110 and the inner housing 40 are assembled is shown. A part of the cleaning unit 110 may be connected to the suction port 8 through the communication window 42 formed in the inner housing 40 . An air inlet 123 of the cleaning unit 110 is located inside the communication window 42, and a duct blade 124A is closely attached to one side of the communication window 42. Therefore, the air sucked through the inlet 8 is naturally guided toward the air inlet 123. Referring to FIG. 15, since the upper part of the guide wall 121 blocks the upper part of the cleaning body 120, the air naturally flows downward.

In other words, the air introduced through the air inlet 123 flows along the guide passage E between the guide wall 121 constituting the cleaning body 120 and the guide fence 124B, but some of it flows along the upper surface. It may flow toward the cleaner 125. However, the air introduced toward the upper surface of the cleaning body 120 flows along the upper surface cleaning unit 125 through the above-described structure of the upper surface cleaning unit 125 and then is discharged again toward the dust collecting space S1.

16 shows a state in which the cleaning unit 110 and the inner housing 40 are separated, and the reinforcing plate 140 constituting the cleaning unit 110 is also separated from the cleaning body 120 . The reinforcement plate 140 is combined with the connection plate 128 of the cleaning body 120 in an overlapping manner to reinforce the connection plate 128 . It can be said that the cleaning body 120 , the cleaning ring 130 and the connection plate 128 constitute one cleaning unit 110 .

Looking at the structure of the reinforcing plate 140, the reinforcing plate 140 has a plate-like structure, and the reinforcing plate 140 basically has a shape corresponding to the connecting plate 128. An upper portion of the reinforcing plate 140 has an assembly body 141, and a lower portion of the reinforcing body 148 extends. Like the connection plate 128, the reinforcing body 148 has a structure in which the width becomes narrower toward the bottom. That is, the upper part 148a of the reinforcing body 148 has a wider width than the lower part 148b, so that it has a structure similar to that of the connection plate 128.

Looking at the structure of the assembly body 141, the assembly body 141 is provided with a first assembly body 142 and a second assembly body 143, the first assembly body 142 and the second assembly body ( 143) is a shape bent to each other. The second assembly body 143 is bent and protrudes from the first assembly body 142, and the first assembly body 142 and the second assembly body 143 extend in a kind of arc shape as a whole, It is combined with a part of the cleaning body 120.

More precisely, the assembly body 141 is inserted into and coupled to the guide passage E formed between the guide wall 121 of the cleaning body 120 and the guide fence 124B, and has the same shape as the guide passage E. overlap with As shown in FIG. 20, the assembly body 141 itself can be regarded as forming a part of a kind of guide passage E, and does not interfere with the flow of air.

As shown in FIGS. 16 and 17, the assembly body 141 has structures for assembly with the cleaning body 120, including a first assembly part 145, a second assembly part 146, and a third assembly part 147. ). In the process of being assembled to the cleaning body 120, these assembling parts are caught on the relative assembly part of the cleaning body 120 to fix the reinforcing plate 140 to the cleaning body 120. The detailed assembly structure will be described again below.

There is a connection bracket 149 on one side of the reinforcing body 148 of the reinforcing plate 140. The connection bracket 149 protrudes from the bottom of the reinforcing body 148 and protrudes toward the inner surface 20 of the housing 1. The connection bracket 149 is connected to the lower end of the movable rail 175 of the control unit 150 so that the movable rail 175 and the reinforcing plate 140 are lifted together. The connection bracket 149 is lifted while being inserted into the lift channel GH in the inner surface 20 of the housing 1, and may be assembled to the movable rail 175 with a separate fastener such as a bolt.

The reinforcing plate 140 may be made of various materials, for example, it may be made of a synthetic resin material or a metal material. In this embodiment, the reinforcing plate 140 is made of aluminum, and the cleaning body 120 is made of synthetic resin.

Meanwhile, referring to FIGS. 18 and 20 , the cleaning unit 110 has blocking walls 128c and 148c. The blocking wall includes an outer blocking wall 128c and an inner blocking wall 148c, and the connection plate 128 has an outer blocking wall 128c. The outer blocking wall 128c is formed on the connection plate 128 in the opposite direction to the air flow direction A formed along the guide passage, and the outer blocking wall faces the inner surface 20 of the housing 1. The surface of (128c) forms a continuous curved surface with the surface of the connection plate (128). Therefore, the outer surface of the outer blocking wall 128c faces the inner surface 20 of the housing 1.

The outer blocking wall 128c can be regarded as a portion in which the area of the connecting plate 128 is wider, that is, the outer blocking wall 128c can be said to be a portion in which a portion of the connecting plate 128 is extended. .

As shown in FIG. 20, when viewed from the reference line Y passing through the center of the connecting plate 128, the left part M1 with the outer blocking wall 128c is wider than the right part M2. If the flesh of the connection plate 128 is added in the opposite direction to the air flow direction A, dust moving along the air flow can be prevented from entering the connection bracket 149. The outer surface of the outer blocking wall 128c faces the inner surface 20 of the housing 1, and due to the existence of the outer blocking wall 128c, air flows between the inner surface 20 of the housing 1 and the outer blocking wall ( 128c) makes it difficult to flow into the space between them. Accordingly, it is possible to prevent dust from accumulating on the upper portion of the connection bracket 149.

Since the reinforcing plate 140 is overlapped and coupled to the connecting plate 128, the inner blocking wall 148c having the same shape can be formed on the reinforcing plate 140 as well. As shown in FIGS. 6 and 19, the inner blocking wall 148c may have the same shape as the outer blocking wall 128c, and thus the ends of the inner blocking wall 148c and the outer blocking wall 128c have a thickness. It gets thicker. The inner blocking wall 148c is also omitted when the reinforcing plate 140 is omitted, and may be made in a different shape from that of the inner blocking wall 148c.

Meanwhile, referring to FIG. 20 , it can be seen that filter ribs R are provided on the surface of the connecting plate 128 . Previously, the filter rib R was provided on the inner surface 20 of the housing 1, but the filter rib R may be provided on the connection plate 128. Alternatively, the filter ribs R may be present on the surface of the connection plate 128 and the inner surface 20 of the housing 1, respectively. The filter rib R on the surface of the connection plate 128 serves to reduce the gap between the inner surface 20 of the housing 1 and the outer surface of the connection plate 128 .

A reinforcing plate 140 is coupled to the cleaning body 120 . Referring to FIG. 20 , it can be seen that the reinforcing plate 140 is overlapped in front of the connection plate 128 connected downward of the cleaning body 120. The force for lifting the cleaning unit 110 is concentrated on the connection bracket 149 connected to the control unit 150, and the protruding length of the cleaning unit 110 toward the suction port 8 starting from the connection bracket 149 is Since it is long, a large load is inevitably concentrated on the connecting bracket 149. Therefore, the connecting portion, that is, the connecting plate 128 portion may be easily twisted. When the connecting plate 128 is twisted, the cleaning unit 110 is eccentric as a whole, so that smooth elevation cannot be achieved.

In this embodiment, the reinforcing plate 140 overlaps with the cleaning body 120 to reinforce the strength of the connecting portion and prevents it from twisting or bending due to external force. As described above, since the reinforcing body 148 of the reinforcing plate 140 has a shape corresponding to the connection plate 128, the overlapping area is wide. As shown in FIG. 24, in this embodiment, it can be said that the shape of the connecting plate 128 and the reinforcing body 148 of the reinforcing plate 140 are almost the same. In contrast, the reinforcing body 148 is part of the connecting plate 128. may overlap only with

Meanwhile, FIGS. 20 and 21 show the structure of the connecting bracket 149, and in FIG. 21, the connecting bracket 149 is shown inserted into the lifting channel GH. The connection bracket 149 protrudes from the reinforcing plate 140 in the direction of the elevation channel GH, and has a fastening hole 149' into which a fastener is inserted at the center. When a fastener such as a bolt is inserted into the fastening hole 149', the connecting bracket 149 is assembled with the movable rail 175.

At this time, a discharge slope 149a gradually decreasing in height toward the bottom of the dust collecting space S1 is formed on the upper surface of the connection bracket 149 based on the ascending and descending direction of the cleaning unit 110 . The discharge slope 149a is gradually lowered in height along the air flow direction (arrow A direction) formed by the guide passage E. Therefore, even if dust accumulates on the discharge slope 149a, the dust falls toward the bottom of the dust collection space S1 (direction of arrow B) by gravity.

And, among both sides of the connection bracket 149, on the side facing the air flow direction (direction of arrow A) formed by the guide passage, a flat portion 149b formed in the elevation direction of the connection bracket 149. ) is there. As shown in FIG. 20, the surface of the flat part 149b is flat, and the discharge slope 149a starts from the top. More precisely, the highest point of the discharge slope 149a starts from the upper end of the flat portion 149b.

In this case, the flat part 149b blocks the air introduced along the air flow direction (arrow A direction), and even if the air rides over the flat part 149b or dust falls from the top, the connection bracket 149 Even if it sinks upward, it falls downward (in the direction of arrow B) along the discharge slope (149a). Accordingly, it is possible to minimize the accumulation of dust on the upper surface of the connection bracket 149.

As shown in FIG. 21, there is a filter rib R described above on the side of the air flow direction (direction of arrow A) formed by the guide passage among both sides of the connection bracket 149, in the direction of air flow (direction of arrow A). Some of the air that penetrates between the surface of the connection plate 128 and the inner surface of the housing 1 is primarily blocked from the air introduced along the .

Of course, a very small amount of air may flow between the surface of the connection plate 128 and the inner surface of the housing 1, but even if dust in the introduced air falls from the top and settles on the top of the connection bracket 149, the exhaust It falls downward (in the direction of arrow B) along the inclined surface 149a.

Summarizing the structure for blocking dust flowing into the upper part of the connection bracket 149, (i) first, the sucked air meets the front part 124B' of the guide fence 124B before being accelerated while rotating in earnest. Therefore, the sucked air is prevented from escaping through the gap N between the inner surface 20 of the housing 1 and the guide fence 124B, and (ii) the connection plate 128 has an air flow direction (A) There is a blocking wall in which the flesh of the connection plate 128 is added in the opposite direction to block dust moving along the air flow from entering the connection bracket 149, and (iii) air A filter rib (R) is provided on the side close to the inlet (Ea) of the guide flow path (E) for guiding the flow, so that air is once again blocked by the filter rib (R), and (iv) some of the air passes through the connecting plate (128) Even if it flows in between the surface of the housing 1 and the inner surface of the housing 1, it falls toward the bottom of the dust collection space S1 along the discharge slope 149a of the connection bracket 149.

Meanwhile, looking at the structure in which the reinforcing plate 140 is assembled to the connection plate 128, as shown in FIGS. 18 and 19, the cleaning body 120 has a plurality of holes. The holes are drilled in the lifting direction of the cleaning unit 110, and in this embodiment, there are a first assembly hole H1, a second assembly hole H2, and a third assembly hole H3. The first assembly part 145 of the assembly body 141 of the reinforcing plate 140 is assembled in the first assembly hole H1, and the second assembly part 146 is assembled in the second assembly hole H2. Then, the third assembly part 147 is assembled in the third assembly hole H3.

The first assembly part 145 is inserted into the first assembly hole H1 and is hooked and fixed. Referring to FIG. 22, which is a cross-sectional view along line V-V' of FIG. 18, the second assembly part 146 inserted into the second assembly hole H2 has an end at the edge of the second assembly hole H2. It is hooked on the assembly end (H2') and fixed. The third assembly part 147 inserted into the third assembly hole H3 is a kind of empty space (see FIG. 19), but there is an assembly end 147' inside the third assembly hole H3 at the entrance edge of the third assembly hole H3. It is hooked and fixed to the seating end (H3') in Of course, this assembly structure is just one example, and the reinforcing plate 140 may be assembled to the connection plate 128 in various ways. For example, the reinforcing plate 140 may be assembled to the cleaning body 120 in an insert injection method, or may be assembled using a separate fastener.

In the above, even though all the components constituting the embodiment according to the present invention have been described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the components may be selectively combined with one or more to operate. In addition, terms such as "comprise", "comprise" or "having" described above mean that the corresponding component may be present unless otherwise stated, and thus exclude other components. It should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1: housing 2: first housing
3: second housing 5: handle
8: inlet 20: inner surface
21: air guide 30: filtering unit
35: mesh network 40: inner housing
50: suction housing 100: cleaning module
110: cleaning unit 120: cleaning body
121: guide wall 124A: duct blade
124B: guide fence 124B': front
126: support rib 127: spacing rib
128: connecting plate 128C: barrier
130: cleaning ring 140: reinforcing plate
149: connection bracket 149a: discharge slope
150: control unit 151: control housing
160: control lever 165: button part
R: filter rib

Claims (20)

a housing provided with an air inlet;
a filtering unit installed in the inner space of the housing and creating a dust collecting space between the inner surface of the housing;
A guide passage installed to surround the filtering unit, moved up and down in the dust collecting space in conjunction with the operation unit, and at least partially connected to the air intake path extending from the intake port at the initial position to guide the flow of the sucked air. a cleaning unit having;
a connection plate provided in the cleaning unit and extending in an elevation direction of the cleaning unit; and
And an operating unit coupled to the connection plate and lifted together with the cleaning unit.
A discharge slope gradually decreasing in height along an air flow direction formed by the guide passage is formed at a connection portion between the connection plate and the operation unit.
The cleaner of claim 1, wherein the discharge slope is formed on an upper surface of a connection bracket connecting the connection plate and the operation unit.
The cleaner of claim 1, wherein an elevation channel is recessed in an inner surface of the housing along an elevation direction of the cleaning unit, and at least a portion of a connection bracket connecting the connection plate and the control unit is inserted into the elevation channel.
The cleaner of claim 3, wherein the connection bracket is connected to the movable rail of the control unit in the lift channel.
The cleaner of claim 4, wherein a portion of a connection bracket connecting the connection plate and the control unit is passed through in a direction parallel to an elevation direction of the control unit, and the movable rail is inserted into the through portion of the connection bracket.
The method according to claim 3, Of both sides of the connecting bracket connecting the connecting plate and the control unit, a flat surface is formed in the lifting direction of the connecting bracket on the side facing the air flow direction formed by the guide passage, , The highest point of the discharge slope starts from the upper end of the plane part.
The cleaner of claim 6 , wherein the plane part faces an inner surface of the elevation channel.
The cleaner of claim 3, wherein a filter rib protrudes toward the other side from at least one of the inner surface of the housing and the surface of the connecting plate facing each other.
The cleaner of claim 8 , wherein the filter rib is disposed at a position away from the lifting channel, and the filter rib is disposed at a position spaced apart from the lifting channel in a direction opposite to an air flow direction formed by the guide passage.
The cleaner of claim 8 , wherein the filter ribs extend along an elevation direction of the connection plate.
The cleaner of claim 1 , wherein a blocking wall extends in a direction opposite to an air flow direction formed along the guide passage on the connection plate.
The cleaner of claim 11, wherein a filter rib protrudes from an inner surface of the housing toward a surface of the blocking wall.
The cleaner of claim 1, wherein a reinforcing plate is overlapped with the connection plate, and a connection bracket is provided on the reinforcing plate to be connected to the operation unit.
The method according to claim 13, wherein the reinforcing plate
An assembly body coupled to the guide passage and forming a part of the guide passage; and
A cleaner comprising: a reinforcing body extending from the assembly body and to which the connection bracket is coupled.
The cleaner of claim 14 , wherein an assembly part protrudes upward from the assembly body, and an assembly hole into which the assembly part is inserted is formed in the cleaning body of the cleaning unit.
The method according to claim 4, wherein the operation unit
an operating housing coupled to the housing;
a fixed rail extending in the lifting direction of the cleaning unit from the inside of the manipulation housing;
The movable rail extending parallel to the fixed rail and moving up and down inside the manipulation housing;
a control lever having a button portion exposed to the outside of the control housing and lifting the movable rail while moving up and down along the fixed rail;
A cleaner configured to include a spring disposed on the fixed rail and providing elastic force to the control lever in a direction in which the control lever returns to its original position.
The cleaner of claim 16, wherein a connection block is connected to the control lever, the connection block connects between the fixed rail and the movable rail, and moves the movable rail along the fixed rail together with the control lever. .
The cleaner of claim 16, wherein at least a part of the movable rail is disposed inside an elevation channel recessed in an inner surface of the housing, and the movable rail is connected to a connection bracket of the cleaning unit inside the elevation channel.
The cleaner of claim 18, wherein the entire height of the control housing is higher than that of the elevation channel.
a housing provided with an air inlet;
a filtering unit installed in the inner space of the housing and creating a dust collecting space between the inner surface of the housing;
A guide passage installed to surround the filtering unit, moved up and down in the dust collecting space in conjunction with the operation unit, and at least partly connected to the air intake path extending from the intake port at the initial position to guide the flow of the sucked air. a cleaning unit having;
An operating unit coupled to a connection bracket provided in the cleaning unit and lifted together with the cleaning unit;
A vacuum cleaner having a discharge slope gradually decreasing in height along the air flow direction formed by the guide passage on the surface of the connection bracket.

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