KR100672533B1 - Vacuum cleaner - Google Patents

Abstract

The present invention provides a vacuum cleaner for discharging air to the rear of a cleaner main body. In order to achieve the above object, according to the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner main body including a dust collecting part for collecting foreign substances, a motor-fan assembly for forcedly flowing air and a main body discharge port formed below the motor- And a guide member provided on the bottom of the cleaner main body to which the main body discharge port is formed and guiding the air discharged from the main body discharge port downward and discharging the air to the rear of the main body of the cleaner.

A cleaner main body, a dust collecting device, a guide member, a hepa filter,

Description

Vacuum Cleaner

1 is a side view showing a vacuum cleaner body of a vacuum cleaner according to the present invention;

FIG. 2 is a perspective view showing a dust collecting apparatus and a cleaner main body separated from the vacuum cleaner according to the present invention. FIG.

3 is a longitudinal sectional view showing a vacuum cleaner body of the vacuum cleaner according to the present invention.

4 is a vertical sectional view showing an embodiment of a dust collecting apparatus provided in a vacuum cleaner according to the present invention.

FIG. 5 is a top perspective view of a lower case of a vacuum cleaner main body provided in a vacuum cleaner according to the present invention;

6 is a bottom perspective view showing a rear portion of a lower case of a vacuum cleaner according to the present invention.

7 is a top perspective view showing a guide member provided on the bottom of the cleaner main body shown in FIG.

8 is a bottom view showing the bottom surface of the guide member shown in Fig.

Description of the Related Art

100: cleaner main body 200: dust collecting device

110: hose connection part 120: wheel                 

130: Caster 140: Motor-fan assembly

150: Lower case 160: Body outlet

170: Guide member 180: Hepa filter

210: dust collecting container 211: lower panel

212: Primary dust storage unit 213: Secondary dust storage unit

214: primary cyclone unit 215: secondary cyclone unit

216: Perimeter wall 217:

218: guide rib 219: scattering prevention member

220: dust collecting container cover 230: upper cover

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner having a guide member for guiding exhaust air backward to a bottom surface of a cleaner main body.

The conventional vacuum cleaner includes a vacuum cleaner main body having a suction nozzle for sucking foreign substances such as dust accumulated on the floor, a dust collecting container for collecting and collecting foreign substances, and a connection for guiding the foreign matter sucked from the suction nozzle to the cleaner main body Tube.

Here, the cleaner main body is provided with an air suction device for generating an air suction force, and a dust container mounting portion for mounting the dust container is provided at a predetermined portion of the cleaner main body.

In addition, a driving wheel is provided on both sides of the rear of the cleaner main body, and a caster of a rotating material for changing the direction of the cleaner main body is provided in the front of the bottom surface of the cleaner main body.

Here, the caster is rotatably connected to a hollow coupling protrusion protruding downward from the bottom of the cleaner main body.

However, in the conventional vacuum cleaner having the above-described configuration, since the air separated from the dust collecting container is discharged to the lower side or the side of the cleaner main body, there is a problem that the dust on the bottom not cleaned is dispersed.

In recent years, there has been a demand for development of a vacuum cleaner provided with a filter that can purify the air discharged from the cleaner body again, and which is easy to remove.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vacuum cleaner having a guide member for guiding air discharged from a cleaner main body backward.

In order to accomplish the above object, the present invention provides a dust collecting apparatus including a dust collecting unit for collecting foreign matter and collecting dust, a motor-fan assembly for forcedly flowing air, and a main discharge port formed at a lower side of the motor- A cleaner main body; And a guide member provided on the bottom of the cleaner main body to which the main body discharge port is formed and guiding the air discharged from the main body discharge port downward to discharge the cleaned air to the rear of the main body of the cleaner .

The main body discharge port is preferably provided with a HEPA filter for filtering fine dust.

The guide member may include a guide plate for guiding the downwardly flowing air backward; And an external discharge port provided at a rear end of the guide plate for discharging air backward.

The guide plate may include at least one guide protrusion having an inclined surface that is inclined upward and rearward on the upper surface.

The guide plate may include at least one partition plate protruded from the upper surface of the guide plate and formed to be long in the front-rear direction so as to partition the guide plate.

Meanwhile, the dust collecting unit includes a primary cyclone unit for separating foreign matter by a cyclone principle; A plurality of secondary cyclone portions disposed along an upper periphery of the primary cyclone portion; And a primary dust storage unit provided below the primary cyclone unit and the secondary cyclone unit for storing foreign matters separated by the primary cyclone unit and the secondary cyclone unit, And a dust storage portion having a portion for storing dust.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and additional description thereof will be omitted in the following.

1 to 3, a canister type vacuum cleaner as an embodiment of the vacuum cleaner according to the present invention will now be described.

1 to 3, the vacuum cleaner includes a suction nozzle (not shown) for sucking air containing foreign matter while moving along a floor to be cleaned, a cleaner body 100 provided separately from the suction nozzle, And a connection pipe (not shown) for interconnecting the suction nozzle and the cleaner main body 100 and guiding the contaminated air sucked from the suction nozzle to the cleaner main body 100.

A nozzle suction port (not shown) having a predetermined size is formed at the bottom of the suction nozzle so that the dust accumulated on the floor is sucked together with the air by the air suction force generated by the air suction device built in the cleaner main body 100 .

The vacuum cleaner main body 100 is equipped with a motor-fan assembly that constitutes the air suction device and a front part that controls the vacuum cleaner.

In more detail, a hose connection part 110 to which the connection pipe is connected is provided on a front end of the cleaner main body 100, and on the rear sides of the cleaner main body 100, A wheel 120 is rotatably mounted on the floor of the cleaner main body 100 so that the cleaner main body 100 can move smoothly. .                     

A dust collecting device 200 is detachably mounted on a front portion of the cleaner main body 100 so that the air sucked in by the suction nozzle flows from the air introduced into the dust collecting device 200 through the connecting pipe, And collects the dust.

The air discharged from the dust collecting apparatus 200 is discharged through a predetermined flow path formed inside the rear portion of the cleaner main body 100 and the motor-fan assembly 140 to the rear of the cleaner main body 100 do.

The connecting pipe is connected to the hose connecting part 110 provided at the front of the cleaner main body 100, and the connecting pipe is connected to the hose connecting part 110 having one end connected to the other end of the extension pipe, And a connection pipe handle provided at the other end of the extension pipe.

Hereinafter, an embodiment of a dust collecting apparatus 200 provided in a vacuum cleaner according to the present invention will be described with reference to FIG.

4, the dust collecting apparatus 200 includes a substantially cylindrical dust collecting container 210, a first end of the dust collecting container 210, more specifically, a dust collecting container 210 for opening / And a top cover 230 detachably coupled to the dust collecting container cover 220 and having a dust collecting device handle 231 on the top surface thereof.

The dust collecting container 210 includes a primary dust collecting part for collecting dust such as dust and a secondary dust collecting part and the bottom of the dust collecting container 210 is composed of a lower panel 211 which can be opened and closed .                     

The primary dust collection unit includes a primary dust separation unit and a primary dust storage unit 212 and is formed of a substantially cylindrical container provided inside the dust collection container 210.

The secondary dust collection unit includes a secondary dust separation unit and a secondary dust storage unit 213 disposed around the primary dust collection unit to separate foreign substances contained in air discharged from the primary dust collection unit .

In the present invention, the primary dust separator and the secondary dust separator may include a primary cyclone unit 214 and a plurality of small secondary cyclone units 215, respectively, for separating foreign substances by a cyclone system .

In more detail, the primary cyclone portion 214 has a cylindrical container shape with its lower end opened, a first suction port 214a communicating with the hose connection portion 210 is formed on the upper side, A first exhaust port 214b penetrating in the vertical direction is formed at the center of the ceiling of the cyclone portion 214. [

The first suction port 214a guides the contaminated air flowing from the outside in the tangential direction of the primary cyclone portion so that the air introduced into the first suction port 214a flows into the primary cyclone portion 214, Lt; RTI ID = 0.0 > flow. ≪ / RTI >

A small secondary cyclone portion 215 integrally formed with the outer wall of the dust container 210 is formed on an upper portion of the primary cyclone portion 214, And the upper end of each secondary cyclone portion 215 is formed to protrude from the upper end of the primary cyclone portion 214 by a predetermined height.                     

A part of the side surface of each secondary cyclone portion 215 protruding above the upper end of the primary cyclone portion 214 is cut in the vertical direction to form a second suction hole 214b communicating with the first exhaust hole 214b, (Not shown), and the upper ends of the respective secondary cyclone portions 215 are opened to form a second exhaust port (not shown).

A lower portion of the secondary cyclone portion 215 is formed with a cone portion 215a having a smaller diameter toward the lower side and a lower end of the secondary cyclone portion 215 is provided with a dust- A foreign matter outlet 215b is formed so as to pass through the upper and lower portions.

Here, adjacent secondary cyclone portions 215 are integrally formed so as to be in contact with each other, so that no air flows out between the secondary cyclone portions 215.

The dust collecting container cover 220 is mounted on the upper portion of the secondary cyclone portions 215.

Third exhaust ports 221 corresponding to the second exhaust ports of the respective secondary cyclone portions are vertically formed in the edge portions of the dust container cover 220.

Next, the upper cover 230, which is opened at the lower end, is detachably mounted on the dust collecting container cover 220.

Three catching protrusions (not shown) are formed on the outer circumferential surface of the dust container cover 220 and three catching grooves (not shown) are formed on the inner circumferential surface of the upper cover 230 to receive the catching protrusions. Are formed.

A fourth exhaust port 232 for exhausting air through a predetermined flow path formed at a rear portion of the cleaner main body 100 is formed at the rear of the upper cover 230. Inside the upper cover 230, A predetermined space communicating with the fourth exhaust port 232 is formed.

Further, it is preferable that a filter accommodating portion for accommodating a filter (not shown) for filtering fine dust contained in the air discharged through the third exhaust ports 221 is provided in the inner space of the upper cover 230.

The dust separated from the primary cyclone portion 214 and the secondary cyclone portion 215 constituted as described above is introduced into the dust storage portion formed by the outer wall of the dust collecting container 210 and the lower panel 211 After the lower panel 211 is opened, it is discharged to the outside by gravity.

The dust storage unit includes the primary dust storage unit 212 and the secondary dust storage unit 212. The primary dust storage unit 212 stores dust separated from the primary cyclone unit 214 And the secondary dust storage unit 213 stores dust separated from the secondary cyclone unit 215.

The primary dust storage part 212 and the secondary dust storage part 213 are integrally connected to the lower part of the secondary cyclone part 215 and have a substantially cylindrical shape having a smaller radius than the outer wall of the dust collection container. Shaped boundary wall 216. [0033]

The lower end of the partition wall 216 is longer than the lower end of the primary cyclone part 214 and extends to the bottom of the dust collecting container 210 or the upper surface of the lower panel 211.

Accordingly, the partition wall 216 prevents the primary dust storage 212 and the secondary dust storage 213 from communicating with each other.                     

In addition, the partition wall 216 is preferably formed in a curved shape in the circumferential direction.

The reason for this is to prevent the dust stored in the primary dust storage part 212 from being scattered by the spiral flow due to the spiral flow formed in the primary cyclone part 214.

The vacuum cleaner according to the present invention is provided vertically inside the primary cyclone portion 214 and has a side surface communicating with the first outlet of the primary cyclone portion 214 An outlet 217 formed with a plurality of through holes and a guide rib 218 provided in the primary cyclone portion 214 and guiding air introduced into the first inlet 214a.

Here, the outflow portion 217 is provided in the center of the primary cyclone portion 214 in the axial direction, and has a generally conical shape in which the upper end is opened and the lower end is hermetically closed and the diameter becomes smaller toward the lower end desirable.

This is because the velocity of the spiral flow decreases toward the lower side of the primary cyclone portion 214 so that the dust falling along the inner wall of the primary cyclone portion 214 is absorbed by the suction force of the outlet portion 217 So as not to be influenced by.

The upper end of the outflow portion 217 is detachably coupled to the rim of the first exhaust port 214b and the upper end of the outflow portion 217 is connected to the first exhaust port 214b by an annular It is preferable that a sealing member of the sealing member is provided.

In addition, a scattering preventing member 219 for preventing scattering of the dust stored in the primary dust storing portion 212 may be provided in the lower portion of the outflow portion 217.

The scattering prevention member 219 functions to prevent the dust collected in the primary dust storage part from rising by the spiral flow and flowing into the secondary cyclone part 215. [

Here, the upper surface of the sinker scattering-preventing member 219 is more preferably downwardly inclined. More specifically, the scattering preventing member 219 is formed in a cone shape having a larger diameter toward the bottom.

The guide ribs 218 guide the air introduced into the first suction port 214a in the tangential direction of the inner wall of the primary cyclone portion 214 so that the air introduced into the first suction port 214a Is prevented from flowing directly into the outflow portion (217).

The air discharged from the dust collecting apparatus 200 is discharged to the rear of the cleaner main body 100 through a predetermined flow path provided at a rear portion of the cleaner main body 100 and the motor- do.

5 to 8, the motor-fan assembly 140 is housed in a motor-fan case 141 having the motor-fan assembly 140 and a grill-type ventilation hole formed at the bottom thereof, The motor-fan case 141 is seated in a state in which the lower end of the motor-fan case 141 is supported by the lower case 150 of the cleaner main body.

A main body discharge port 160 for discharging air downward is formed below the motor-fan case 141, that is, the lower case 150 of the cleaner main body.

The bottom of the lower case 150 in which the main body discharge port 160 is formed, that is, the bottom of the main body 100, guides air flowing downward from the main body discharge port 160 And a guide member 170 for discharging the cleaner body 100 to the rear of the cleaner main body 100.

This is because when the air is directly discharged downward through the main body discharge port 160 toward the floor to be cleaned, dust on the floor is scattered.

The guide member 170 includes a guide plate 171 for guiding the downwardly flowing air backward and an external outlet 172 provided at the rear end of the guide plate 171 for discharging air backward, .

At this time, at least one guide protrusion 173 having an inclined surface inclined upward to the rear is formed on the upper surface of the guide plate 171.

One guide protrusion 173 is formed on both sides of the upper surface of the guide plate 171 and the guide member 170 is inserted into the lower case 150 in the guide protrusion 173, A fixing device 174 such as a hook that fixes to the bottom of the frame 174 is provided. At the front end of the guide member 170, at least one hook portion 175 that is hooked to the lower case is provided.

At least one partition plate 176 protruding upward is formed on the upper surface of the guide plate 171 so as to be long in the front and rear direction to define the guide plate 171.

The partition plate 176 divides the air discharge space formed by the guide member 170 and the bottom surface of the lower case 150 to prevent turbulence.

The main body discharge port 160 is preferably provided with a HEPA filter 180 for filtering fine dust. The HEPA filter 180 is supported by the guide member 170 to be prevented from being released.

The operation of the vacuum cleaner according to the present invention will now be described.

First, when the vacuum cleaner is operated, contaminated air from the outside flows into the primary cyclone part 214 through the suction nozzle and the connection pipe.

The air introduced into the primary cyclone portion 214 is not directly introduced into the outflow portion 217 by the first intake port 214a and the guide rib 218 but flows into the primary cyclone portion 214 in a tangential direction to form a spiral flow.

Accordingly, the dust, which is relatively heavy and heavy, is separated and descended by the cyclone principle and stored in the primary dust storage part 212, and the dust stored in the primary dust storage part is transferred to the scattering prevention part 219, And the boundary wall 216 having a curved shape.

The air having relatively large dusts is discharged to the first exhaust port 214b communicating with the plurality of through holes formed in the side surface of the outflow portion 217 and then discharged to the plurality of secondary cyclone portions 215 And the dust is separated again.

Air having relatively small dusts separated at the second cyclone part 215 flows into the inside of the upper cover 230 through the third exhaust port 221.

The air introduced into the upper cover 230 is exhausted to the rear through the fourth exhaust port 232.

The air discharged from the fourth exhaust port 232 passes through a predetermined flow path formed in the rear portion of the cleaner main body 100 and the motor-fan assembly 140 through the main body discharge port 160 downward The discharged air is purified again by the HEPA filter 180 and then discharged to the rear of the cleaner main body 100 by the guide member 170.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

The vacuum cleaner according to the present invention having the above-described configuration has the following effects.

The vacuum cleaner according to the present invention is provided with a guide member for guiding and discharging the air discharged downward through the main body discharge port to the rear so as to prevent dispersion of the foreign matter accumulated on the undeveloped floor.

Further, a HEPA filter is provided at the main body discharge port of the vacuum cleaner according to the present invention to improve the dust removing performance.

Further, since the HEPA filter provided at the main body discharge port of the vacuum cleaner according to the present invention is supported by the guide member which is detached from the lower part, it is easy to attach and detach the filter for replacement or cleaning of the HEPA filter.

Claims (6)

A cleaner main body including a dust collecting part for collecting and collecting foreign matter, a motor-fan assembly for forcedly flowing air, and a main body discharge port formed below the motor-fan assembly for discharging air downward; And A guide plate provided on the bottom of the cleaner main body to form the main body discharge port and guide the air discharged from the main body discharge port to the downward direction to the rear, and an external discharge port provided at the rear end of the guide plate to discharge air backward The vacuum cleaner comprising: The method according to claim 1, Wherein the main body discharge port is provided with a HEPA filter for filtering fine dust. delete The method according to claim 1, The guide plate And at least one guide protrusion having an inclined surface inclined upwards and rearward on the upper surface thereof. The method according to claim 1, The guide plate And at least one partition plate protruding from an upper surface of the guide plate and extending in the longitudinal direction so as to partition the guide plate. The method of claim 1, Wherein the dust- A primary cyclone part for separating foreign matters by the cyclone principle; A plurality of secondary cyclone portions disposed along an upper periphery of the primary cyclone portion; And And a primary dust storage part and a secondary dust storage part provided below the primary cyclone part and the secondary cyclone part for storing foreign matters separated by the primary cyclone part and the secondary cyclone part, respectively, Wherein the dust removing unit comprises a dust storing unit.

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