WO2011025071A1

WO2011025071A1 - Vacuum cleaner

Info

Publication number: WO2011025071A1
Application number: PCT/KR2009/004713
Authority: WO
Inventors: 하건호
Original assignee: 엘지전자 주식회사
Priority date: 2009-08-24
Filing date: 2009-08-24
Publication date: 2011-03-03

Abstract

The present embodiment relates to a vacuum cleaner. The vacuum cleaner includes: a cleaner main body; a dust separating unit communicated with the cleaner main body and provided with a filter unit for filtering air; a dust case for storing dust separated in the dust separating unit; a cleaning unit for cleaning the filter unit; a driving source for driving the cleaning unit; and a transmission means for transmitting the power of the driving source to the cleaning unit.

Description

Vacuum cleaner

This embodiment relates to a vacuum cleaner.

In general, a vacuum cleaner is a device that inhales air containing dust and then separates dust using suction force generated by a suction motor provided inside the cleaner body.

The vacuum cleaner includes a suction nozzle for sucking air containing dust, a cleaner body in communication with the suction nozzle, and a suction motor provided in the cleaner body to generate air suction force. In addition, the air and dust sucked into the cleaner body are separated from each other, the dust is stored in the dust storage unit, the air is discharged to the outside of the cleaner body.

An object of the present embodiment is to propose a vacuum cleaner to compress the dust stored in the dust storage unit.

Another object of this embodiment is to propose a vacuum cleaner for automatically cleaning the filter unit for filtering air.

Vacuum cleaner according to one aspect, the cleaner body; A dust separation unit communicating with the cleaner body and having a filter unit for filtering air; A dust container for storing dust separated from the dust separation unit; A cleaning unit for cleaning the filter unit; A drive source for driving the cleaning unit; Transmission means for transmitting power of the drive source to the cleaning unit is included.

According to the proposed embodiment, since the dust stored in the dust storage unit is compressed by the interaction of the first pressing member and the second pressing member, the amount of dust stored in the dust storage unit can be maximized.

In addition, when the drive motor is rotated in one direction, since the first pressing member and the cleaning unit are rotated together in the same direction, there is an advantage that the filter unit can be cleaned by the cleaning unit.

In addition, since the first pressing member and the cleaning unit can be moved together by a single drive motor, there is an advantage that the structure is simple and the cost is reduced.

1 is a perspective view of a dust container is separated from a vacuum cleaner according to the first embodiment.

Figure 2 is a perspective view of the dust separation unit and the dust container separated according to the first embodiment.

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a perspective view of a first pressing member according to the first embodiment;

5 is a perspective view of a cleaning unit according to the first embodiment;

6 is a perspective view illustrating a coupling relationship between a driving device and a dust container provided in the mounting unit according to the first embodiment;

7 is a perspective view of a vacuum cleaner according to a second embodiment.

8 is a partial vertical cross-sectional view showing the internal structure of the vacuum cleaner.

9 is a perspective view showing a partial configuration of a vacuum cleaner according to a third embodiment.

10 is a perspective view taken along the line B-B of FIG.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a dust container separated from a vacuum cleaner according to a first embodiment.

Referring to FIG. 1, the vacuum cleaner 10 according to the present embodiment includes a cleaner body 100 having a suction motor (not shown) for generating a suction force, and dust detachably coupled to the cleaner body 100. Separation device 200 is included.

Although not shown, a suction nozzle for sucking air containing dust and a connection device for connecting the suction nozzle to the cleaner body 100 are further included.

In this embodiment, since the basic configuration of the suction nozzle and the connecting device is the same as in the prior art, a detailed description thereof will be omitted.

In detail, a main body suction part 110 through which the air containing the foreign matter sucked from the suction nozzle is sucked is formed at the front lower end of the cleaner main body 100. On one side of the cleaner body 100, a body discharge part 120 through which the foreign matter is separated is discharged to the outside is formed.

On the other hand, the dust separation apparatus 200 is selectively mounted to the mounting portion 130 formed in the cleaner body 100.

The dust separation apparatus 200 includes a dust separation unit 210 for separating the dust contained in the air to be sucked, and a dust container 250 for storing the dust separated from the dust separation unit 210.

FIG. 2 is a perspective view of a dust separation unit and a dust container separated according to the first embodiment, FIG. 3 is a cross-sectional view taken along AA of FIG. 1, and FIG. 4 is a view of the first pressing member according to the first embodiment. 5 is a perspective view of a cleaning unit according to a first embodiment.

2 to 5, the dust separation unit 210, the cyclone part 211 for separating the dust contained in the air sucked by the cyclone principle, that is, the centrifugal force difference between the air and the foreign matter, and The cover member 220 covering the upper side of the cyclone portion 211 is included.

The cyclone part 211 is formed with a suction part 212 for sucking the air containing the dust. The suction part 212 may extend from the cyclone part 211 in the tangential direction of the cyclone part 211.

A handle 214 may be formed in the cyclone portion 211. A lower coupling portion 211 of the cyclone portion 211 is formed with a first coupling portion 215 for coupling with the dust container 250.

The cover member 220 has an air discharge hole 222 through which air separated from dust from the cyclone part 210 is discharged.

The cyclone unit 211 is provided with a filter unit 230 for filtering the air separated from the dust. The filter unit 230 is located upstream of the air outlet hole 222. The filter unit 230 is detachably coupled to the lower side of the cover member 220.

The filter unit 230 includes a filter body 231 having an empty interior. In addition, the filter body 231 is provided with a plurality of openings 232 through which air passes. The plurality of openings 232 are spaced apart from each other. Each opening 232 may be provided with a network (not shown) in which fine holes are formed.

The cleaning unit 330 for cleaning the filter unit 230 is provided outside the filter unit 230. The cleaning unit 330 includes an upper body 332, a lower body 334 spaced apart from the upper body 332, and one connecting the upper body 332 and the lower body 334. The connecting part 335 and the inner side of the connecting part 335 (the face facing the filter unit) are formed, and a cleaning member 336 for cleaning the filter unit 230 is included.

In FIG. 5, for example, two connection parts 335 are provided, and the number of connection parts 335 is not limited. However, since the cleaning unit 330 is provided outside the filter unit 230, an air movement path should be formed in order to allow air to move to the filter unit 230.

The cleaning member 336 may be composed of a plurality of brushes. The cleaning member 336 shakes off dust attached to the surface of the filter unit 230 while the cleaning unit 330 is rotated.

A power transmission unit 337 for receiving power from the outside is formed below the lower body 334.

An elastic member 340 is provided between the upper surface of the lower body 334 and the lower surface of the filter body 231. The cleaning unit 330 may elastically move in the vertical direction by the elastic member 340.

The lower portion of the cyclone portion 211 is provided with a partition 240 for partitioning the inner space of the cyclone portion 211 and the inner space of the dust container 250. The partition portion 240 may be coupled to the lower side of the cyclone portion 211 or may be integrally formed with the cyclone portion 211. In FIG. 3, for example, the partition part 240 is integrally formed with the cyclone part 211.

The partition 240 is provided with a dust discharge hole 242 through which the dust separated in the cyclone unit 211 is discharged. In addition, an opening 245 through which the power transmission unit 337 penetrates is formed at the central portion of the partition 240.

Meanwhile, the dust container 250 includes a dust collecting body 251 that forms a dust storage unit 252, and a compression unit that is provided inside the dust collecting body 251 to compress dust stored in the dust storage unit 252. Included.

A handle 254 may be formed on the dust collecting body 251. In addition, a second coupling part 255 is formed on the dust collecting body 251 to be coupled to the first coupling part 215.

The compression unit includes a plurality of pressing members. The plurality of pressing members include a first pressing member 310 movably provided inside the dust collecting body 251 and a second pressing member 320 fixed to the dust collecting body 251.

The first pressing member 310 may be rotated in both directions in the dust container 250. The dust inside the dust container 250 is compressed by the interaction between the first pressing member 310 and the second pressing member 320.

That is, when the first pressing member 310 is rotated in one direction (eg, clockwise), dust between the first pressing member 310 and one side surface of the second pressing member 320 is compressed. In addition, when the first pressing member 310 is rotated in the other direction (for example, counterclockwise), dust between the first pressing member 310 and the other side surface of the second pressing member 320 is compressed. .

The first pressing member 310 includes a pressing plate 312 and a rotation shaft 314 connected to the pressing plate 312. The pressure plate 312 and the rotary shaft 314 may be manufactured as a separate article, combined or integrally formed.

A connecting portion 316 connected to the power transmission unit 337 is formed on the upper side of the rotating shaft 314. The connection part 316 and the power transmission part 337 include a plurality of teeth each formed to be inclined. In addition, the connection part 316 and the power transmission part 337 mesh with each other. When the rotary shaft is rotated in one direction as the plurality of teeth are inclined, the connecting portion 316 and the power transmission unit 337 are engaged to rotate the rotating shaft 314 and the cleaning unit 330 together. do.

On the other hand, when the rotary shaft 314 is rotated in the other direction, the teeth of the connecting portion 316 is carried over the teeth of the power transmission unit 337 so that the power transmission unit 337 does not rotate, the rotation Only shaft 314 will rotate. At this time, when the teeth of the connecting portion 316 passes over the teeth of the power transmission unit 337, since the elastic member is contracted, the cleaning unit 330 elastically moves in the vertical direction.

If the cleaning unit 330 is configured to rotate in both directions together with the rotation shaft 314, the portion that is not cleaned in the filter unit 230 as the dust stored in the dust container 250 increases. Will increase. Therefore, in the present embodiment, the cleaning unit 330 is rotated when the rotary shaft 314 is rotated in one direction, and is not rotated when the rotary shaft 314 is rotated in the other direction.

That is, when the cleaning unit 330 is configured to rotate in both directions together with the rotation shaft 314, the cleaning member 336 and the first pressing member 310 of the cleaning shaft 314 may be rotated based on the rotation shaft 314. The angle formed by the pressure plate 312 is always kept constant. However, when the cleaning unit 330 is rotated only when the rotating shaft 314 is rotated in one direction, the cleaning member 336 and the first pressing member 310 based on the rotating shaft 314. Since the angle formed by the pressure plate 312 of) is variable, the filter unit 230 can be cleaned as a whole.

Of course, the idea of this embodiment may include that the cleaning unit 330 is rotated in both directions in the state coupled with the rotary shaft 314.

On the other hand, the second pressing member 320 may be formed integrally with at least one of the inner circumferential surface and the bottom surface of the dust collecting body 251, or may be coupled to any one surface. The second pressing member 320 may be referred to as a fixed plate because the position is fixed.

The rotating shaft is coupled to a driven gear 430 constituting a transmission unit for transmitting the power of the drive motor (see 410 of FIG. 6) to be described later.

The shaft 432 of the driven gear is coupled to the rotating shaft 314 of the first pressing member 310 through the hole 256 formed in the bottom surface of the dust container 250 in the lower side of the dust container.

6 is a perspective view illustrating a coupling relationship between a driving device and a dust container provided in the mounting unit according to the first embodiment.

3 and 6, the first pressing member 310 may be automatically rotated by the driving device. The drive device includes a drive source for generating a driving force, and a transmission unit for transmitting the power of the drive source to the first pressing member 310.

For example, a driving motor 410 may be used as the driving source, and the driving motor 410 may be provided in the mounting unit 130. However, in the present embodiment, it is noted that the driving source is not limited.

The drive motor 410 may be a motor capable of forward rotation and reverse rotation. In other words, the driving motor 410 may be a motor capable of bidirectional rotation. Accordingly, the first pressing member 310 may perform forward rotation (clockwise rotation) and reverse rotation (counterclockwise rotation), and the first pressing member 310 may rotate forward and reverse. 2 Compressed dust is accumulated on both sides of the pressing member 320.

As such, in order to enable forward and reverse rotation of the drive motor, a synchronous motor may be used as the drive motor. The synchro-motor is configured to be capable of forward and reverse rotation by the motor itself, and when the force applied to the motor is greater than or equal to a predetermined value when the motor rotates in one direction, the rotation of the motor is converted to another direction. .

The transmission unit is coupled to the shaft of the drive motor 410, the drive gear (420: may be referred to as "the first gear") provided in the mounting portion 130 and the first pressing member 310 And a driven gear 430 that is coupled to the rotating shaft 314 and that selectively engages with the drive gear 420 (which may be referred to as a “second gear”).

The driven gear 430 is engaged with the driving gear 420 when the dust container 250 is mounted on the mounting portion 130.

Hereinafter, the operation of the vacuum cleaner will be described.

The operation signal of the suction motor (not shown) is input while the operation of the vacuum cleaner is stopped. Then, the suction motor is operated so that the air containing the dust is sucked through the suction nozzle.

In addition, the air sucked through the suction nozzle is introduced into the cleaner body 10. The air introduced into the cleaner body 10 is moved to the dust separation unit 210.

The air introduced into the dust separation unit 210 is separated from the dust during the spiral flow along the inner circumferential surface of the dust separation unit 210. Then, the separated dust is dropped into the dust container 250 through the dust discharge hole 242, the air passes through the filter unit 230 and then through the air discharge hole 222 through the dust separation unit ( At 210, the cleaner is discharged to the body 10.

The air introduced into the cleaner body 10 is discharged to the outside of the cleaner body 10 after passing through the suction motor.

As the dust in the air is separated and dust is stored in the dust storage unit 252 as described above, the plurality of pressing

members

310 and 320 compress the dust stored in the dust storage unit 211 by interaction. And the cleaning unit cleans the filter unit.

That is, the driving motor 410 is driven to compress the dust stored in the dust container 250 after the suction motor is operated or simultaneously with the operation of the suction motor.

For example, when the driving motor 410 is rotated in the counterclockwise direction, the driving gear 420 coupled with the rotation shaft of the drive motor 410 is rotated in the counterclockwise direction. When the driving gear 420 is rotated, the driven gear 430 meshed with the driving gear 420 rotates in a clockwise direction. When the driven gear 430 is rotated in the clockwise direction, the first pressing member 310 coupled with the driven gear 430 rotates clockwise toward one surface of the second pressing member 320. Compress the dust.

In addition, when the first pressing member 310 is rotated in the clockwise direction, the power transmission unit 337 engaged with the connecting portion 316 of the rotary shaft 314 is rotated. Since the power transmission unit 337 is rotated because the cleaning unit 330 is rotated, dust on the surface of the filter unit 230 is removed by the clockwise rotation of the cleaning unit 330.

On the other hand, when the driving motor 420 is rotated in the clockwise direction, for example, the driven gear 430 is rotated in the counterclockwise direction. When the driven gear 430 is rotated in the clockwise direction, the first pressing member 310 coupled with the driven gear 430 rotates counterclockwise toward the other surface of the second pressing member 320. This will compress the dust.

At this time, the teeth formed in the connecting portion 316 of the rotary shaft 314 is carried over the teeth of the power transmission unit 337, the cleaning unit 330 is not rotated.

In this embodiment, since the dust stored in the dust container is compressed by the interaction of the first pressing member and the second pressing member, the amount of dust stored in the dust bucket can be maximized.

In addition, since the cleaning unit is rotated together in the same direction when the first pressing member is rotated in one direction, there is an advantage that the filter unit can be cleaned by the cleaning unit.

In the present embodiment, when viewed on the basis of the cleaning unit, the rotation shaft of the first pressing member, the transmission unit serves as a transmission means for transmitting the power of the drive motor to the cleaning unit, the transmission unit and The rotating shaft of the first pressing member may be referred to as a transmission means.

7 is a perspective view of a vacuum cleaner according to a second embodiment, and FIG. 8 is a partial vertical cross-sectional view showing an internal structure of the vacuum cleaner.

7 and 8, the vacuum cleaner 500 according to the present embodiment includes a first main body 510 including a suction motor 520 for generating a suction force, and a first main body 510 of the first main body 510. It is coupled to the lower side, and includes a second body 550 is formed dust storage unit 551 for storing dust.

A plurality of wheels 592 are provided below the second body 550 to facilitate movement of the second body 550. The second body 550 is provided with a suction part 552 to which the suction hose 590 is connected. An extension pipe 580 is connected to the suction hose 590, and a suction nozzle 570 is connected to the extension pipe 580.

The handle 512 is provided on the upper side of the first body 510 for the user's grip. The first body 510 is detachably coupled to the second body 550 by fastening means (not shown). In addition, one or more discharge holes 526 are formed in the first body 510 to discharge air.

In detail, the first main body 510 includes a filter unit 530 for separating dust from air containing dust sucked into the second main body 520, and a cleaning unit for cleaning the filter unit 530 ( 630 and a drive motor 650 for driving the cleaning unit 630 are provided.

The suction motor 520 is supported by the first support 523, and the drive motor 650 is supported by the second support 524.

A plurality of openings 532 are spaced apart from the filter unit 530. Therefore, the air passing through the plurality of openings 532 moves to the suction motor 520 after cooling the driving motor 650.

The cleaning unit 630 is provided with a coupling portion 631 for coupling with the shaft of the drive motor 650. The coupling part 631 penetrates through a hole 533 formed in the filter unit 530 at the lower side of the filter unit 530 and is coupled to the shaft of the driving motor 650.

In addition, a plurality of brushes are provided on a surface of the cleaning unit 630 facing the filter unit 530. Therefore, dust attached to the filter unit 530 may be removed by the brush while the cleaning unit 630 is rotated by the driving motor 650.

An elastic member 640 is provided between the upper surface of the coupling part 631 and the second support part 524. The cleaning unit 630 may elastically move in the vertical direction by the elastic member 640. The function of the elastic member 640 is the same as the function of the elastic member 340 of the first embodiment.

In addition, a lower surface of the coupling part 631 is formed with a power transmission unit 634 for transmitting power.

On the other hand, the second body 550 includes a compression unit for compressing the dust stored in the dust storage unit 551. The compression unit is provided with a plurality of pressing members.

The plurality of pressing members include a first pressing member 610 provided to be movable on the second main body 550, and a second pressing member 620 fixed to the second main body 550. The first pressing member 610 includes a pressing plate 612 and a rotation shaft 614 connected to the pressing plate 612. The rotation shaft 614 may be coupled to the guide portion 553 formed on the bottom surface of the second body 550.

A connecting portion 616 is formed at the upper side of the rotating shaft 620 to be connected to the power transmission unit 634.

The connection part 616 and the power transmission part 634 include a plurality of teeth each formed to be inclined. In addition, the connection part 616 and the power transmission part 634 mesh with each other.

When the coupling part 631 is rotated in one direction as the plurality of teeth are inclined, the connection part 616 and the power transmission part 634 mesh with the cleaning unit 630 and the first pressing member ( 610 is rotated together.

On the other hand, when the coupling portion 631 is rotated in the other direction, the teeth of the power transmission unit 634 is carried over the teeth of the connecting portion 616 so that the connecting portion 616 is not rotated, the coupling portion ( Only 631). At this time, when the teeth of the power transmission unit 634 passes over the teeth of the connecting portion 616, the elastic member is contracted, the cleaning unit is elastically moved in the vertical direction.

Since the operation of the power transmission unit 634 and the connection unit 616 is the same as the first embodiment, a detailed description thereof will be omitted.

According to the present embodiment as described above, since the dust stored in the dust storage unit is automatically compressed at the same time as the cleaning of the filter unit, the user's convenience is improved, and the trouble of cleaning the filter unit is eliminated, and the dust storage There is an advantage that the amount of dust stored in the wealth can be increased.

FIG. 9 is a perspective view illustrating a part of a vacuum cleaner according to a third embodiment, and FIG. 10 is a perspective view cut along B-B of FIG. 9.

9 illustrates a state in which the body forming the appearance of the vacuum cleaner is removed.

9 and 10, the vacuum cleaner 700 according to the present embodiment includes a dust separation unit 710 for separating dust, a dust bin 750 stored in the dust separation unit, and the dust. Filter unit 800 for filtering the air discharged from the separation unit 720 is included. The air passing through the filter unit passes through an intake motor disposed downstream of the filter unit although not shown.

The dust separation unit separates dust in the air by a cyclone method. Then, the dust separation unit 710 is disposed so that the axis of the cyclone flow lies in the horizontal direction. The air suction part 711 extends in the tangential direction of the dust separation unit 710. The air suction unit extends downward from the dust separation unit 710.

A discharge hole 713 through which air is discharged is formed at a side of the dust separation unit 710. A filter member 720 is provided inside the dust separation unit 710 to filter the air in which the dust separation process is performed by the cyclone method. Air passing through the filter member 720 is discharged to the outside of the dust separation unit 710 through the discharge hole.

The dust discharge part 730 which discharges dust in the tangential direction of the dust separation unit 710 is extended.

The dust container 750 is provided on the outer side of the dust separation unit 710, the dust container 750 is disposed so that the longitudinal axis of the dust container 750 parallel to the axis of the cyclone flow.

Inside the dust container is provided with a plurality of pressing members for compressing the stored dust. In FIG. 10, for example, two pressing members are provided in the dust container. The plurality of pressing members include a first pressing member 910 that is movable inside the dust container, and a second pressing member 920 fixed to the inside of the dust container 750.

The first pressing member 910 includes a rotation shaft 912 that provides a center of rotation, and the rotation shaft 912 extends in parallel with the cyclone flow shaft.

The first pressing member 910 may be automatically rotated by the driving device. The drive device includes a drive motor 930 for generating a rotational force, a drive gear 940 connected with the drive motor 930, and a drive shaft 940 that are engaged with the drive gear 940, and a rotation shaft of the first pressing member 910. Included is a driven gear 950 coupled with 912.

The driving motor 930 may be a bi-directional rotatable motor as described in the previous embodiment. In addition, the driving motor 930 may be a biaxial motor. That is, the driving motor 930 may include two

motor shafts

931 and 932 extending in opposite directions.

The drive gear is coupled to the first motor shaft 931 of the drive motor 930. A cleaning unit 960 for cleaning the filter unit 800 is coupled to the second motor shaft 932 of the drive motor 930.

The cleaning unit 960 includes a cleaning body 962 coupled to the second motor shaft 932, and a plurality of brushes 964 provided on a surface facing the filter unit 800 of the cleaning body 962. ) Is included.

Therefore, dust attached to the filter unit 600 may be removed by the brush 964 while the cleaning unit 960 is rotated by the driving motor 930.

The filter unit 800 includes a filter 820 and a filter housing 810 for protecting the filter 820. The filter housing is formed with a plurality of openings 812 for air to pass through.

Since the filter 820 is accommodated in the filter housing 810, the length of the brush 964 may be formed to be in contact with the filter 820 while being installed in the cleaning body 962. have. Accordingly, the brush 964 not only cleans the outer circumferential surface of the filter housing 810, but also cleans the surface of the filter 820 through the opening 812.

The dust container 850 for accommodating the dust removed from the filter housing 810 and the filter 820 may be provided below the cleaning unit. Although not shown, the dust container 850 is configured to be separated out of the vacuum cleaner 700. For example, an opening may be formed in a body forming the exterior of the vacuum cleaner, and the dust container 850 may be attached or detached through the opening.

As the dust container 850 is provided below the cleaning unit 960, the inside of the vacuum cleaner may be prevented from being contaminated by the dust removed from the filter housing 810 and the filter 820. have.

Claims

A suction motor generating a suction force;

A dust separation unit communicating with the suction motor and having a filter unit for filtering air;

A dust container for storing dust separated from the dust separation unit;

A cleaning unit for cleaning the filter unit;

A drive source for driving the cleaning unit;

And a transmission means for transmitting power of the drive source to the cleaning unit.
The method of claim 1,

The dust separation unit is provided with an air discharge hole for discharging air,

The filter unit is a vacuum cleaner located upstream of the air outlet hole.
The method of claim 2,

The cleaning unit is provided on the outside of the filter unit, the vacuum cleaner including one or more brushes.
The method of claim 1,

The drive source includes a drive motor,

And the cleaning unit is rotated when the driving motor is rotated in one direction, and the rotation of the cleaning unit is stopped when the driving motor is rotated in the other direction.
The method of claim 1,

The delivery means,

And a delivery unit provided outside the dust container, and a rotation shaft connected to the delivery unit and provided inside the dust container.
The method of claim 5,

The rotary shaft is connected to a pressure plate for compressing the dust inside the dust container vacuum cleaner.
The method of claim 6,

And a fixing plate having a fixed position in the dust container to compress the dust by interacting with the pressure plate.
The method of claim 5,

The cleaning unit includes a power transmission unit for transmitting power,

The rotating shaft includes a connection for connecting with the power transmission,

The power cleaner and the connecting portion is a vacuum cleaner including a plurality of teeth each inclined in one direction.
The method of claim 8,

And a resilient member for elastic movement of the cleaning unit between the filter unit and the cleaning unit.