KR20060107627A - A dust collector for vacuum clearner - Google Patents

Abstract

The present invention relates to a dust collection assembly of a vacuum cleaner in which a plurality of blades forming an acute angle with the inner circumferential surface of the dust collecting container are formed in the filter assembly and the air is discharged laterally through the side of the dust collecting container.

The present invention is a dust collecting tube 110 for filtering and collecting dust in the air introduced from the outside; A filter assembly (150) provided inside the dust collecting container (110) to filter foreign matter in the air, and having a plurality of blades (151 ') formed in a spiral direction on the outer surface to guide the outside air inwardly; A separation plate 120 provided below the filter assembly 150 and partitioning an inner space of the dust collecting container 110 up and down; Characterized in that it comprises a discharge guide tube 180 for guiding the air passing through the filter assembly 150 to be exhausted through the side of the dust collector (110). According to such a configuration, there is an advantage that foreign matter in the air is effectively filtered and the dust collecting assembly is easily installed.

Vacuum cleaner, filter assembly, blade, exhaust vent, side exhaust

Description

Dust collection assembly of vacuum cleaner {A dust collector for vacuum clearner}

1 is a perspective view showing an appearance configuration of a general vacuum cleaner.

Figure 2 is a perspective view of an upright type vacuum cleaner showing a state of use of the preferred embodiment of the vacuum cleaner dust collection assembly according to the present invention.

Figure 3 is an exploded perspective view showing a preferred embodiment of the vacuum cleaner dust collection assembly according to the present invention separated from the upright vacuum cleaner.

Figure 4 is an exploded perspective view of a preferred embodiment of the vacuum cleaner dust collection assembly according to the present invention.

Figure 5 is a partial cutaway perspective view showing the inside of the filter assembly which is a main component of the vacuum cleaner dust collection assembly according to the present invention.

6 is a cross-sectional view of a preferred embodiment of the vacuum cleaner dust collection assembly according to the present invention.

7 is a cross-sectional view taken along the line AA ′ of FIG. 6.

Figure 8 is a bottom perspective view of the top cover constituting the embodiment of the present invention.

9 is a plan view showing another embodiment of a separator constituting an embodiment of the present invention.

Figure 10a is a perspective view showing the configuration of another embodiment of a separator constituting an embodiment of the present invention.

10B is a cross-sectional view of the separator shown in FIG. 10A.

Explanation of symbols on the main parts of the drawings

50. Vacuum cleaner 60. Suction nozzle body

70. Body 72. Dust Collector

74. Suction channel 76. Drain channel

78. Release knob 78 '. Knob

100. Dust collection assembly 110. Dust collection

112. Suction guide 120,120 '. Separator

130. Dust Collector Knob 140. Top Cover

150. Filter assembly 151. Blade part

151 '. Blade 152. Filter part

154. Upper Fixed Government 156. Upper Fixed Government

160. Filter fixing member 162. Jamming protrusion

170. Moving member 172. Working groove

174. Jam Jaw 176.

180. Discharge guide 182. Exhaust vent

The present invention relates to a vacuum cleaner, and more particularly, to a dust collecting assembly of a vacuum cleaner in which a plurality of blades formed at an acute angle with an inner circumferential surface of a dust collecting container are formed in a filter assembly and air is discharged laterally through the side of the dust collecting container. .

1 shows a configuration of a general vacuum cleaner. As shown in the drawing, the vacuum cleaner includes a main body 1 having suction means for sucking air in the room, and a suction nozzle 2 into which air on the bottom surface is introduced by suction force generated in the main body 1. Has a configuration to include.

On the other hand, the main body 1, the lower body (5) to which the suction means is received and fastened, and the parts embedded in the lower body (5) so as not to be exposed to the outside, the electric part for controlling the vacuum cleaner (not shown) It consists of an upper body (6) is built.

In addition, wheels 8 are fastened to both sides of the body so that the main body 1 can smoothly move the bottom surface, and the wheels 8 are sucked through the suction nozzle 2 and then filtered air is received from the main body ( The discharge part 8a discharged | emitted from 1) is formed.

Between the main body 1 and the suction nozzle 2, a suction hose 3b made of a flexible material, an operation unit 4 connected to an end of the suction hose 3b, and the operation unit 4 ) And an extension tube 3a for connecting the suction nozzle 2 are sequentially installed, so that the suction force generated in the main body 1 can be transmitted to the suction nozzle 2.

Therefore, when electricity is applied through the wire 9 connected to the power supply unit (not shown) built in the main body 1, the vacuum cleaner is in a standby state. At this time, if the user adjusts the suction step by using the button of the operation unit 4, the suction force suitable for each step is generated by the suction means built in the main body.

The suction force generated through the suction means is transmitted to the suction nozzle 2 via the suction hose 3b and the extension pipe 3a which are fastened to the suction connector 3c. The air containing the foreign matter such as dust or lint is sucked by the suction force transmitted to the suction nozzle 2, and the air containing the fine dust and the like is separated by the dust collecting container 10 from the sucked air. The cleaning is performed while discharging to the outside of the main body 1 through 8a).

However, the vacuum cleaner dust collector structure of the prior art as described above has a problem in that its configuration is not easy to clean inside, and foreign substances in the air cannot be properly filtered.

Accordingly, an object of the present invention is to solve the problems in the prior art as described above, and is provided with a sirocco type filter assembly to provide a dust collection assembly of a vacuum cleaner for filtering foreign substances in the air by a centrifugal force and a filter. It is.

Another object of the present invention is to allow the purified air to be discharged to the side in the vacuum cleaner dust collection assembly having a sirocco type filter assembly.

According to a feature of the present invention for achieving the above object, the present invention comprises: a dust collector (110) for filtering and collecting dust in the air introduced from the outside; A filter assembly (150) provided inside the dust collecting container (110) to filter foreign matter in the air, and having a plurality of blades (151 ') formed in a spiral direction on the outer surface to guide the outside air inwardly; A separation plate 120 provided below the filter assembly 150 and partitioning an inner space of the dust collecting container 110 up and down; Characterized in that it comprises a discharge guide tube 180 for guiding the air passing through the filter assembly 150 to be exhausted through the side of the dust collector (110).

According to such a configuration, there is an advantage that foreign matter in the air is effectively filtered and the dust collecting assembly is easily installed.

Hereinafter, a preferred embodiment of the vacuum cleaner dust collection assembly as described above will be described in detail with reference to the accompanying drawings.

2 and 3 show a perspective view of the dust collecting assembly according to the present invention mounted and separated state of the upright vacuum cleaner.

As shown in these figures, the upright vacuum cleaner 50 includes a suction nozzle body 60 that sucks air containing foreign substances while moving along the bottom surface, and foreign substances through the suction nozzle body 60. Body 70 has a means for generating a suction force for sucking the air to be installed, and has a configuration including a handle 80 is installed on the upper portion of the body 70 for the user to hold.

The suction nozzle body 60 is a portion for sucking air through a suction port (not shown) formed on the bottom thereof while moving in a state close to the bottom surface. That is, the external appearance of the suction nozzle body 60 is composed of a nozzle lower cover 60 'provided at the lower side and an nozzle upper cover 60 "provided at the upper side, and the outside of the air in the nozzle lower cover 60'. A suction port serving as a main suction passage is formed, and the suction nozzle body 60 is generally provided with moving wheels 62 on both sides of the nozzle lower cover 60 'to facilitate movement.

The connection part of the suction nozzle body 60 and the body 70 is configured such that the body 70 is rotatable within a predetermined angle range. That is, the body 70 is rotatably coupled to the suction nozzle body 60 within a range of a predetermined inclination angle, the upper surface of the suction nozzle body 60 to control the rotation of the body 70. The rear end is further provided with a rotation lever 64.

Accordingly, when the user grasps the handle 80 by hand and pulls the body 70 backward while the user presses on the pivot lever 64, the body 70 is inclined to the rear side. This allows the user to clean the bottom surface while adjusting the body 70 to the desired angle to suit the height of his height.

On the other hand, the rear of the body 70 is further formed with a wire fastener (71). The wire fasteners 71 are preferably formed in pairs symmetrically with respect to the upper and lower ends of the rear surface of the body 70, and the wires are wound and stored in the pair of wire fasteners 71.

Inside the body 70, components such as a motor (not shown) and a suction fan (not shown) for generating a suction force are built in so that external air and foreign matter are sucked through the suction nozzle body 60. do. And the central portion of the body 70 is formed with a dust collecting portion 72 recessed in a predetermined portion from the front of the body 70 to the rear. Therefore, the dust collecting assembly 100, which will be described below, is inserted into the dust collecting mounting portion 72.

On the rear surface of the dust collector mounting portion 72, a suction passage 74 is formed, which is a passage through which air is introduced. The upper end of the suction passage 74 is coupled with the suction guide 112 of the dust collecting assembly 100 to be described below, the lower end of the suction passage 74 is the suction port (not shown) of the suction nozzle body 60. ). Therefore, air and foreign matter introduced through the suction nozzle body 60 are sucked into the dust collecting assembly 100 which will be described below through the suction passage 74.

The exhaust passage 76 is formed to protrude a predetermined portion to the rear of the dust collecting and mounting portion 72. The discharge passage 76 is configured to contact the exhaust port 182 of the dust collecting assembly 100 to be described below. Therefore, the air filtered by the dust collecting assembly 100 is discharged to the outside (indoor space) through the discharge passage 76 via a motor (not shown) or the like provided in the body 70.

The packing member 76 'is mounted on the front surface of the discharge passage 76. The packing member 76 'maintains an airtight state with the exhaust port 182 of the dust collecting container 110, which will be described below, and at the same time, the packing member 76' can be introduced into the discharge channel 76. The foreign matter is molded into a mesh shape of a predetermined size to filter the foreign matter. In addition, the packing member 76 'is preferably formed of a material having a constant elasticity such as rubber or silicone for airtightness.

On the other hand, a lamp (L) for illuminating the front of the cleaner is provided at the lower end of the front of the body 70, the exhaust cover 70 'is installed above the lamp (L). The exhaust cover 70 ′ surrounds an outlet through which the filtered air is discharged while passing through the dust collecting assembly 100, and an exhaust filter (not shown) is provided inside the exhaust cover 70 ′. The exhaust filter re-filters the foreign matter of the air discharged to the outside (indoor space) so that more comfortable air is discharged to the indoor space.

Behind the exhaust filter is a motor (not shown) that provides a motive force for sucking air. And a separate accessory (accessory) for cleaning the corners of the room in addition to the bottom surface may be attached to the back or side of the body 70.

The dust collecting assembly 72 of the body 70 is provided with a dust collecting assembly 100 having a cylindrical shape. The dust collecting assembly 100 serves to filter foreign matter in the air sucked through the suction nozzle body 60 and is detachably mounted to the dust collecting mounting unit 72.

The dust collection assembly 100 is generally configured to collect foreign matter by collecting the foreign matter through a cyclone method or a separate filter, or to collect the foreign matter by using a cyclone method and a filter method simultaneously.

The body 70 is provided with a detachment knob 78 for detachment of the dust collection assembly 100. Therefore, one end of the detachable knob 78 is selectively inserted into the knob groove 78 'formed in the dust collecting assembly 100 to be described below.

4 shows an exploded perspective view of the vacuum cleaner dust collecting assembly according to the present invention, and FIG. 5 shows the inside of the filter assembly constituting the dust collecting assembly according to the present invention. FIG. 6 is a cross-sectional view of the vacuum cleaner dust collecting assembly according to the present invention, and FIG. 7 is a cross-sectional view along the line AA ′ of FIG. 6.

As shown in detail in these figures, the dust collecting assembly 100 is provided with a substantially cylindrical dust collecting container 110, the suction guide 112 is formed on the upper end of one side of such a dust collecting container (110).

The suction guide 112 is formed so that one end thereof protrudes to the outside of the dust collecting container 110, and the air flowing into the dust collecting container 110 may flow along the inner wall of the dust collecting container 110 in a tangential direction. Guide to help. Therefore, the suction guide 112 is formed to be inclined at an angle to the outer surface of the dust collecting container (110).

In the inner side surface of the dust collecting tube 110, a separation plate 120 having a foreign body through-hole 120a formed therein is assembled so that dust having a relatively large amount of foreign matter contained in the air introduced therein can be separated. Therefore, the space inside the dust collecting container 110 is divided up and down by the separating plate 120.

The separation plate 120 is made of a half-moon-shaped flat plate symmetric with each other as shown. That is, the vandal-shaped separation plates 120 which are symmetrical with each other so as to correspond to the inner circumferential surface of the dust collector 110 are rotatably installed on the inner surface of the dust collector 110. Therefore, both ends of the separating plate 120 can be rotated to the upper side or the lower side with respect to the central portion.

The dust collecting handle 130 is formed on the other outer circumferential surface of the suction guide 112. The dust collecting handle 130 is formed so that a user can easily detach the dust collecting assembly 100 from the body 70 of the vacuum cleaner 50.

The upper surface of the dust collecting container 110 is shielded by the upper cover 140. The top cover 140 is mounted to be opened and closed at the upper end of the dust collecting container 110, the knob groove 78 'is inserted into the detachable knob 78 of the body 70 on the upper surface of the top cover 140. ) Is formed. And the side of the top cover 140 is formed with a confirmation groove 140 'that the check piece 176 to be described below to enter and exit.

The filter assembly 150 is fastened to the bottom of the top cover 140. The filter assembly 150 is formed in a cylindrical shape to filter foreign matter in the suction air, the blade unit 151 for guiding the air flowing into the dust collector 110 to the center portion and the blade, A filter unit 152 provided inside the unit 151 to filter foreign matter in the air, a lower end fixing unit 154 for fixing and supporting lower ends of the blade unit 151 and the filter unit 152; It consists of an upper end fixing part 156 for fixing the upper end of the blade unit 151 and the filter unit 152.

The blade unit 151 is composed of a plurality of blades 151 'installed at equal intervals, the blade 151' is formed to form an acute angle (θ) with the inner surface of the dust collecting container (110). That is, the blade 151 ′ is formed to be inclined in one direction as shown in detail in FIG. 7, and more specifically, to form an acute angle θ with a turning direction A of air introduced into the dust collecting container 110. Is installed. Therefore, the blade 151 ′ guides the air orbiting inside the dust collecting container 110 in the reverse direction to flow inward.

The filter unit 152 of the filter assembly 150 is preferably formed of a material having a certain strength or more, in consideration of the strong flow of air, and capable of maintaining a shape during washing. For example, it can also be comprised by the polyester material which can be utilized as a fiber material.

For example, the filter unit 152 is composed of a mesh filter or a bending filter in which a plurality of wrinkles in the longitudinal direction are formed. Therefore, it is possible to widen the contact surface area with the air guided by the blade 151 'and passed through the blade unit 151, thereby maximizing dust collection efficiency. That is, the filter unit 152 filters foreign matters in the air so that fine foreign matters are not included in the air discharged through the discharge guide passage 152a.

The upper and lower fixing parts 156 and lower fixing parts 154 for fixing and supporting the upper and lower parts of the blade part 151 and the filter part 152 also have a cylindrical shape. It is configured to maintain and may be composed of a synthetic resin material that can be washed.

Discharge guide flow path 152a is formed in the center of the filter part 152 up and down. The discharge guide flow path 152a is formed to penetrate the lower fixing part 154 to guide the air passing through the filter part 152 to be discharged downward.

The upper fixing portion 156 is preferably formed in a relatively larger size than the lower fixing portion 154, the circumferential surface is a locking projection 162 of the filter fixing member 160 to be described below is caught through A plurality of grooves 156 'are formed. In addition, the circumferential surface of the upper fixing part 156 is provided with a coupling piece 158 that controls the flow of the movable member 170 to be described below, and protrudes in a lateral direction.

As shown in FIG. 8, the bottom surface of the upper cover 140 is provided with a filter fixing member 160 to which the upper fixing part 156 of the filter assembly 150 is fastened. On the inner surface of the filter fixing member 160, a plurality of locking projections (162) for fixing the upper end portion 156 of the filter assembly 150 is formed. And the filter fixing member 160 is preferably formed integrally with the upper cover 140.

On the other hand, the outer side of the filter fixing member 160 is provided with a circular moving member 170. An operation groove 172 is formed on the inner surface of the movable member 170 to control the movement of the movable member 170 by the coupling piece 158 of the upper fixing part 156 of the filter assembly 150. On the right side (in FIG. 8) of the working groove 172, the engaging jaw 174, which is engaged with the engaging piece 158 which is out of the working groove 172, is formed to protrude inward.

One side of the moving member 170 is formed with a confirmation piece 176 protruding outward. The check piece 176 is integrally formed with the moving member 170 and functions to check whether the filter assembly 150 is mounted while entering and exiting the check groove 140 ′. And the inside of the confirmation piece 176 is a compression spring (S) is mounted to control the return of the confirmation piece (176).

The discharge guide tube 180 is formed below the separation plate 120. The discharge guide pipe 180 guides the air discharged downward through the discharge guide flow path 152a of the filter assembly 150 to the side of the dust collecting assembly 100. Therefore, the upper end of the discharge guide tube 180 is in contact with the lower end of the filter assembly 150, the discharge guide passage 152a and the discharge guide tube 180 is installed to communicate with each other. The discharge guide tube 180 is preferably formed integrally with the side surface of the dust collecting tube (110).

The discharge guide tube 180 is shaped into a 'b' shape (see FIG. 6), and an exhaust port 182 is formed at one end thereof as an outlet of air. The exhaust port 182 is formed at the lower side portion of the dust collecting container 110 to guide the air guided through the discharge guide pipe 180 to the outer side of the dust collecting container 110.

In more detail, the exhaust port 182 is recessed in a predetermined portion into the side surface of the dust collecting container 110 to be concave, and is formed on the opposite side to the dust collecting handle 130. Therefore, the discharge passage 76 of the body 70 protruding relative to the exhaust port 182 is accommodated.

 As described above, a packing member 76 'mainly composed of rubber, silicon, or the like is mounted between the exhaust port 182 and the discharge passage 76 of the body 70 to maintain an airtight state. Therefore, the suction power loss of the vacuum cleaner will not occur at all.

Hereinafter, the operation of the vacuum cleaner dust collection assembly having the above configuration will be described.

First, when the vacuum cleaner 50 is operated, a suction force is generated by the driving of a motor (not shown) built in the body 70. In this case, the outside air and the foreign matter are sucked through the bottom suction port (not shown) of the suction nozzle body 60, and the suction air and the foreign matter are suction path 74 and the dust collecting assembly 100 of the body 70. It is introduced into the dust collecting container 110 through the suction guide 112 of the).

The foreign matter introduced into the dust collecting container 110 is separated by the filter assembly 150 in the process of moving together with the air to escape through the discharge guide tube 180 and accumulated in the dust collecting container 110. will be.

Referring to FIG. 7, the air and the foreign substance introduced into the dust collecting container 110 are rotated in the anti-clockwise direction (in FIG. 7) while moving downwardly inside the dust collecting container 110, wherein the air It flows into the filter assembly 150 through the blade gap 171 ″ formed between the blades 151 ′.

In this case, the foreign matter in the air having a relatively greater weight than air does not change the direction of travel due to the inertia force, and continuously rotates inside the dust collecting tube 110 and moves downward through the foreign matter through-hole 120a to separate the separation plate ( 120 is accumulated at the bottom. That is, the forming angle of the blade 151 ′ forms an acute angle θ with the turning direction A of the air that rotates inside the dust collecting container 110, and thus, the foreign matter in the air is collected by the inertial force. The interior is turned as it is and only air moves to the filter unit 152.

In the filter unit 152, fine foreign matter that cannot be separated is filtered out. That is, foreign matter having a relatively large mass is separated from the blade unit 151 by centrifugal force, and fine foreign matter contained in the air cannot be separated and filtered while passing through the filter unit 152.

The air passing through the blade unit 151 and the filter unit 152 is led downward through the discharge guide passage 152a formed at the center of the filter unit 152 to discharge the discharge guide tube 180 and the exhaust port 182. It is discharged to the outside of the dust collecting assembly (100). The air discharged to the outside of the dust collecting assembly 100 is discharged to the outside through a motor (not shown) through the discharge passage 76 formed in the body 70.

Next, look at the detachment process of the filter assembly 150.

When the filter assembly 150 is removed from the top cover 140, the check piece 176 protrudes outward through the check groove 140 ′ of the top cover 140. That is, at this time, the check piece 176 is protruded out of the upper cover 140 by the restoring force of the built-in compression spring (S). Therefore, in this state, the dust collecting assembly 100 cannot be mounted on the body 70.

In order to mount the filter assembly 150 to the upper cover 140, the coupling piece 158 of the filter assembly 150 is clockwise in a state in which the engaging groove 172 of the moving member 170 is accommodated. At 8). In this case, the coupling piece 158 is hooked to the locking jaw 174 on the right side out of the working groove 172.

As such, when the coupling piece 158 is positioned on the locking step 174, the upper fixing part 156 of the filter assembly 150 is firmly secured by the locking protrusion 162 of the filter fixing member 160. It is fixed. In this case, the check piece 176 moves inward through the check groove 140 ′ and does not protrude to the outside of the top cover 140. Therefore, in this case, the dust collecting assembly 100 may be mounted on the body 70.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

For example, in the above embodiment, the separator plate 120 is installed inside the dust collector 110 to separate the internal space up and down, but the configuration of the separator plate 120 may be variously changed.

That is, as shown in Figure 9 is provided with a separation plate 120 having the same outer diameter as the inner surface of the dust collecting tube 110, the at least one foreign body through-hole 120a is formed in the outer end of the separating plate 120 through The configuration is also possible. In this case, the separating plate 120 is integrally formed on the inner circumferential surface of the dust collecting tube 110, and an exhaust pipe through-hole 120b through which the purified air passes is formed in the center portion.

10A and 10B, the separation plate 120 may be configured in a skirt shape. That is, in each of the above embodiments, the separating plate 120 is made of a flat plate, but may be configured to have a skirt-shaped separating plate 120 'gradually inclined downward toward the outside.

An exhaust pipe through-hole 120b through which purified air passes is also formed in a central portion of the skirt-shaped separator plate 120 ', and the outer diameter of the skirt-shaped separator plate 120' is determined by the dust collector. It is preferable to have a size relatively smaller than the inner diameter of 110).

In the above embodiment, a case in which the dust collecting assembly 100 is mounted and used in the upright type vacuum cleaner 50 is used as an example. However, various types such as a canister type or a handy type in which the main body and the nozzle unit are separated may be used. Of course, it can be applied to a cleaner.

In the vacuum cleaner dust collection assembly according to the present invention as described above, the filter assembly is composed of a blade portion for guiding the flow of air in the reverse direction and a filter portion for filtering foreign matter. Therefore, there is an advantage that the removal of foreign matter in the air more effectively.

On the other hand, in the present invention, since the filtered air has a structure that is discharged through the lower half of the dust collecting assembly, the dust collecting assembly can be easily attached and detached. That is, since the exhaust port is formed on the rear surface (opposite side of the dust collecting handle) of the dust collecting assembly, there is an advantage that the removable is easier than the case formed on the upper surface.

Claims (8)

A dust collecting box 110 for collecting dust by filtering dirt in the air introduced from the outside; A filter assembly (150) provided inside the dust collecting container (110) to filter foreign matter in the air, and having a plurality of blades (151 ') formed in a spiral direction on the outer surface to guide the outside air inwardly; A separation plate 120 provided below the filter assembly 150 and partitioning an inner space of the dust collecting container 110 up and down; Dust collection assembly of the vacuum cleaner, characterized in that it comprises a discharge guide tube 180 for guiding the air passing through the filter assembly 150 through the side of the dust collecting tube (110). The dust collection assembly of claim 1, wherein an exhaust port 182 is formed at a lower side portion of the dust collecting container 110 to be an outlet of air guided through the discharge guide pipe 180. According to claim 1 or 2, wherein the discharge guide tube 180 is formed in a 'b' shape, the dust collection of the vacuum cleaner, characterized in that one end is in contact with the lower end of the filter assembly 150 assembly. The method of claim 1, wherein the filter assembly 150, Blade portion 151 for guiding the air flowing into the dust collecting tube 110 to the center portion, and The dust collecting assembly of the vacuum cleaner, characterized in that it comprises a filter unit 152 provided inside the blade unit 151 to filter foreign matter in the air. The method of claim 4, wherein the blade unit 151 is composed of a plurality of blades 151 'installed at equal intervals, the blade 151' is characterized by forming an acute angle with the inner surface of the dust collector (110). Collection assembly of vacuum cleaner. 6. The dust collecting assembly of claim 5, wherein the blade (151 ') is installed to form an acute angle with a turning direction of air introduced into the dust collecting container (110). The dust collecting assembly of claim 1, wherein the separating plate (120) is made of a flat plate or has a skirt shape gradually inclined downward toward the outside. The dust collecting assembly of claim 1 or 7, wherein the separating plate (120) is formed with a foreign material through hole (120a) for guiding the filtered foreign material downward.

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