WO2008034325A1

WO2008034325A1 - A dust collector

Info

Publication number: WO2008034325A1
Application number: PCT/CN2007/002234
Authority: WO
Inventors: Zugen Ni
Original assignee: Suzhou Kingclean Floorcare Co., Ltd.
Priority date: 2006-09-21
Filing date: 2007-07-23
Publication date: 2008-03-27
Also published as: EP2064981A1; EP2064981A4

Abstract

A dust collector includes a body, which includes a vacuum chamber and a motor chamber holding the motor; and a detachable dust-collecting unit arranged in the vacuum chamber. Said dust-collecting unit includes an upstream cyclone separator (1) and several downstream cyclone separators (2) connected with said upstream cyclone separator (1). Said downstream cyclone separators (2) are arranged side by side around said upstream cyclone separator (1) and connected to each other to form a first dust cup (3). The air outlet port of said upstream cyclone separator (1) is communicated with the air inlet ports of said several downstream cyclone separators (2). The bottom cover (21) and the dust cover (22) can be opened successively, so that the dust in the upstream cyclone separator (1) and the downstream cyclone separators (2) can be poured out separately and successively.

Description

Vacuum cleaner

Technical field

The invention relates to a vacuum cleaner.

Background technique

A conventional vacuum cleaner is equipped with a filtering device for filtering the inhaled dirty air to leave dust particles in the dust collecting device. Therefore, after using the vacuum cleaner for a period of time, the user should clean or replace the filtering device. Otherwise, the filter hole of the filter device is blocked by fine dust, which will increase the resistance of the vacuum motor. In severe cases, the motor will be burnt out, which not only causes trouble to the user, but also affects the performance and life of the vacuum cleaner.

In recent years, according to the principle of cyclone separation, the manufacturer uses a cyclone dust removal device instead of the filter device to obtain a better dust removal effect, and thus is widely applied to a vacuum cleaner. The cyclone dust removing device is provided with a conical cylinder with a large upper end and a small lower end in the dust cup. The upper end of the conical cylinder body is longitudinally disposed with an air outlet tube, and the lower end of the conical cylinder body is open to facilitate dust falling into the bottom of the dust cup. The air inlet pipe enters the upper side wall of the cone cylinder and enters in a tangential direction, so that the dusty airflow generates a cyclone in the cone cylinder, and the dust particles fall along the side wall of the cone cylinder to the dust box under the action of centrifugal force. At the bottom, the airflow after dust removal is discharged upward through the air duct. '

However, the cyclone dust removing device also has a large volume defect, and in particular, the cyclone dust removing device used on a large vacuum cleaner having a large wind flow demand is larger in volume, which not only increases the cost, but also is cumbersome for the user to use.

Summary of the invention

The object of the present invention is to provide a vacuum cleaner comprising an upstream cyclone separator and a plurality of parallel downstream separators, the air outlet of the upstream separator being connected to the air inlets of the plurality of downstream separators, without increasing At the same time, the volume of the body is increased, and the dust removal efficiency is maintained.

The technical solution of the present invention is: a vacuum cleaner comprising a body comprising a vacuum chamber and a motor chamber for housing the motor; a detachable dust removing device disposed in the vacuum chamber, comprising an upstream cyclone, a downstream cyclone separator connected to the upstream cyclone separator; the downstream cyclone separators are juxtaposed around the upstream cyclone separator and connected to each other to form a first dust cup;

The upper portion of the first dust cup is provided with a closed communication layer, and the primary air outlet of the upstream cyclone and the secondary air inlet of the downstream cyclone communicate with each other in the communication layer; the upper part of the communication layer is provided with an air outlet Layer, the secondary air outlet pipe of the downstream cyclone extends into the air outlet layer to communicate; The upstream cyclone separator comprises a cylinder body having a first-stage air inlet, the upper part of the cylinder body is provided with an inverted cone filter cylinder, the filter cylinder is connected with the upper first-stage air outlet, and the first-stage air outlet is located in the communication layer. a cylindrical filter, the upper edge of the cylinder is provided with a gap and communicates with the first dust cup;

The downstream cyclone separator includes an upper circular cylinder extending into the communication layer, a central tapered cylinder and a lower second dust cup, and the secondary air inlet is disposed on the side wall of the circular cylinder, the second stage The outlet duct is disposed inside the circular cylinder, and the upper end of the secondary air outlet tube communicates with the air outlet layer through the communication layer, and the end of the secondary air outlet duct has a plurality of ribs arranged side by side, the lower part of the cone cylinder An umbrella-shaped reflecting plate is arranged, and a center of the umbrella-shaped reflecting plate is provided with a return hole, and a peripheral edge of the umbrella-shaped reflecting plate and a side wall of the tapered cylindrical body are connected with the second dust cup, and the second dust cup is connected The bottom surface is on the same plane as the bottom surface of the first dust cup;

The bottom of the dust removing device is provided with a bottom cover, and a dust cover is arranged between the dust removing device and the bottom cover, and the dust cover is fastened to the graying port of one of the cyclone separators, and the bottom cover is at least buckled to the other The dust cover of the cyclone separator; the dust cover is fastened on the graying port of the downstream cyclone, and the bottom cover is fastened to the dust cover and the graying port of the upstream cyclone; the downstream cyclone is inverted The ash port is located at the bottom, and the dust cover is composed of a plurality of small cover joints fastened on the ash ash port; the middle part of the upstream cyclone separator is an upstream whirl chamber, and the bottom cover is provided with a conical protrusion corresponding to the upstream whirl chamber; The bottom cover and the dust cover are hingedly connected to the outer edge of the bottom of the dust removing device.

A vacuum cleaner comprising a body comprising a vacuum chamber and a motor chamber for housing the motor; a detachable dust removing device disposed in the vacuum chamber, comprising an upstream cyclone separator and a plurality of upstream cyclone separators a downstream cyclone separator; the downstream cyclone separators are juxtaposed around the upstream cyclone separator and interconnected to form a first dust cup, wherein each downstream cyclone has a portion of the outer surface forming the outer surface of the first dust cup At the same time, part of the outer surface forms the outer edge of the dust removing device.

A vacuum cleaner comprising a body comprising a vacuum chamber and a motor chamber for housing the motor; a detachable dust removing device disposed in the vacuum chamber, comprising an upstream cyclone separator and a plurality of upstream cyclone separators a downstream cyclone separator; the downstream cyclone separators are juxtaposed around the upstream cyclone separator and interconnected to form a first dust cup, wherein the upstream cyclone separator communicates with the first dust cup through a gap; the gap Located on the upper edge of the upstream cyclone.

The advantages of the invention are:

1 . The invention comprises an upstream cyclone separator and a plurality of parallel downstream separators, wherein the air outlet of the upstream separator communicates with the air inlets of the plurality of downstream separators, which can increase the air volume without increasing the volume of the body, and maintain More efficient dust removal efficiency. 2. The downstream cyclone separator of the present invention adopts a diffused structure, and the tapered cylinder has a shape of a small upper end and a large lower end, and the cyclone air inlet is located at the upper small end, and the airflow is decelerated and centrifugally rotated when rotating in the conical cylinder, so that the airflow The pressure loss is small, so that a better vacuuming effect can be obtained.

3. The airflow rotation speed of the lower portion of the downstream cyclone of the present invention is slower than that of the upper portion, so that the dust at the bottom of the dust cup can be prevented from being dusted, so that secondary pollution is not generated.

4. The invention adds a dust cover between the bottom of the dust removing device and the bottom cover, and the bottom cover and the dust cover are hingedly connected to the outer lower edge of the downstream air separator. When the ash is dusted, the bottom cover can be opened first, the upstream cyclone separator is ashed, and then the dust cover is opened, and the downstream cyclone separator is ashed to avoid excessive dusting and dust generation.

5. The dust cover of the present invention is composed of a plurality of small cover connections, each small cover is respectively fastened to the graying port of the downstream cyclone, and the bottom cover is fastened to the dust cover and the graying port of the upstream cyclone. It ensures the sealing performance of the dust cover to the downstream cyclone.

DRAWINGS

The present invention is further described below in conjunction with the accompanying drawings and embodiments:

Figure 1 is a schematic view showing the installation of a dust removing device and a vacuum cleaner;

Figure 2 is an exploded perspective view of the dust removing device;

Figure 3 is a schematic view showing the assembly of the dust removing device;

Figure 4 is a schematic structural view of a dust removing device;

Figure 5 is a schematic view showing the structure of the first-stage air outlet, the filter cylinder and the filter net in the upstream cyclone; Figure 6 is a schematic view showing the structure of the secondary air outlet pipe in the downstream cyclone;

Figure 7 is a schematic view showing the structure of the bottom cover of the dust removing device being opened and the dust cover being fastened;

Figure 8 is a schematic view showing the structure of the bottom cover and the dust cover of the dust removing device simultaneously opened;

Figure 9 is a schematic exploded view of the bottom cover and the dust cover of the dust removing device.

Among them: 1 upstream cyclone separator; 2 downstream cyclone separator; 3 first dust cup; 4 second dust cup; 5 - level air inlet; 6 second air inlet; 7 secondary air outlet; 8 rib; Layer; 10 level outlet; 11 outlet layer; 12 cylinder; 13 filter cartridge; 14 filter; 15 notch; 16 circular cylinder; 17 conical cylinder; 18 umbrella reflector; 20 dust ring annulus; 21 bottom cover; 22 dust cover; 23 gray ash port; 24 gray ash port; 25 small cover; 26 upstream whirl chamber;

detailed description

Embodiment: As shown in FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, a vacuum cleaner includes a body comprising a vacuum chamber and a motor chamber for housing the motor; a detachable dust removing device disposed in the vacuum chamber, the dust removing device comprising an upstream cyclone separator 1 and a plurality of downstream connected to the upstream cyclone separator 1 a cyclone separator 2, a plurality of downstream cyclones 2 arranged side by side around the upstream cyclone separator 1, and connected to each other to form a first dust cup 3, wherein each of the downstream cyclones 2 has a part of the outer surface forming a first dust The outer edge of the cup 3 has a part of the outer surface forming the outer edge of the dust removing device. The upper portion of the first dust cup 3 is provided with a closed communication layer 9, and the primary air outlet 10 of the upstream cyclone 2 and the secondary air inlet 6 of the downstream cyclone 2 communicate with each other in the communication layer 9, and the upper portion of the communication layer 9 An air outlet layer 11 is provided, and the secondary air outlet pipe 7 of the downstream cyclone separator 2 extends into the air outlet layer 11 to communicate.

The upstream cyclone separator 1 includes a cylinder 12 having a first-stage air inlet 5, and an upper portion of the cylinder 12 is provided with an inverted cone filter cylinder 13, and the filter cylinder 13 is connected to the upper first-stage air outlet 10, and a primary air outlet 10 is provided with a filter screen 14 in the communication layer 9, and the upper edge of the cylinder 12 is provided with a notch 15 communicating with the first dust cup 3.

The downstream cyclone separator 2 includes an upper circular cylinder 16 extending into the communication layer 9, a conical cylinder 17 in the middle, and a second dust cup 4 in the lower portion. The secondary air inlet 6 is disposed in the circular cylinder. On the side wall of the body 16, the secondary air outlet pipe 7 is disposed inside the circular cylinder 16, and the upper end of the secondary air outlet pipe 7 communicates with the air outlet layer 11 through the communication layer 9, and the secondary air outlet pipe 7 There are a plurality of juxtaposed ribs 8 at the end, and a lower portion of the conical cylinder 17 is provided with an umbrella-shaped reflecting plate 18, and a center of the mushroom-shaped reflecting plate 18 is provided with a return hole 19, a peripheral edge of the mushroom-shaped reflecting plate 18 and a tapered cylinder A dust ring gap 20 is provided between the side walls of the 17 to communicate with the second dust cup 4.

As shown in FIG. 4, in use, dirty air containing dust enters the cylinder 12 in the first-stage dust cup 3 from the primary air inlet 5, and coarse dust falls in the cylinder 12 when passing through the tapered filter cylinder 13. A part of the coarse dust enters the first dust cup 3 from the notch 15 along the upper portion of the cylinder 12, and fine dust and air continue to enter the inside of the filter cartridge 13, and are further filtered upward from the primary air outlet 10 through the filter 14. Entering into the communication layer 9, and continuing to enter each of the downstream cyclones 2 from each of the secondary air inlets 6, forming a cyclone in the circular cylinder 16 and the conical cylinder 17, during the cyclone, fine dust follows The inner wall of the tapered cylinder 17 falls, enters the second dust cup 4 through the dust ring gap 20, and the dust-removed air enters the air outlet layer 11 from the secondary air outlet pipe 7, and the air is discharged from the air outlet layer 11. The tube is discharged centrally.

As shown in FIG. 7, FIG. 8, and FIG. 9, each of the downstream cyclones 2 is provided with a second dust cup 4, and the bottom surface of the second dust cup 4 is on the same plane as the bottom surface of the first dust cup 3; a bottom cover 21 is disposed at the bottom, and a dust cover 22 is disposed between the dust removing device and the bottom cover 21, and the dust cover 22 is fastened On the ash discharge port 23 of the downstream cyclone 2, the bottom cover 21 is fastened to the dust cover 22 and the ash discharge port 24 of the upstream cyclone separator 1; the ash discharge port 23 of the downstream cyclone separator 2 is located at the bottom, and the dust cover 22 It is composed of a plurality of small covers 25 fastened on the graying port 23; the middle part of the upstream cyclone 1 is an upstream cyclone chamber 26, and the bottom cover 21 is provided with a conical protrusion 27 corresponding to the upstream cyclone chamber 26; 21 and the dust cover 22 are hingedly coupled to the outer edge of the bottom of the dust removing device in a coaxial manner.

For the material of the dust cover 22, it may be a soft material such as rubber (in the form of a cushion, directly inserted into the bottom of the second dust cup 4), or a plastic material such as PVC, PP or PE.

The invention adds a dust cover 22 which is fastened to the ash discharge port 23 of the downstream cyclone separator 1 between the bottom of the dust removing device and the bottom cover 21, and the bottom cover 21 and the dust cover 22 are simultaneously hingedly connected to the downstream cyclone separation. The lower edge of the outer side of the device 2, when the ash is dusted, the bottom cover 21 can be opened first, the upstream cyclone separator 1 is ashed, and then the dust cover 22 is opened, and the downstream cyclone separator 2 is ashed to avoid excessively ashing. And the generated dust splash; the dust cover 22 of the present invention is composed of a plurality of small covers 25 connected, each small cover 25 is respectively fastened to the graying port 23 of the downstream cyclone 2, and the bottom cover 21 is fastened The dust cover 22 and the ash discharge port 24 of the upstream cyclone separator 1 ensure the sealing performance of the dust cover to the downstream cyclone 2 .

Claims

Rights request:

A vacuum cleaner comprising a body comprising a vacuum chamber and a motor chamber for housing the motor; a detachable dust removing device disposed in the vacuum chamber, comprising an upstream cyclone (1), and a plurality of a downstream cyclone separator (1) connected to the upstream cyclone separator (1); characterized in that: the downstream cyclone separator (2) is juxtaposed around the upstream cyclone separator (1) and connected to each other to form a first Dust cup (3).

2. The vacuum cleaner according to claim 1, wherein: the upper portion of the first dust cup (3) is provided with a closed communication layer (9), and the primary air outlet of the upstream cyclone (1) (10) ) Interconnect with the secondary air inlet (6) of the downstream cyclone (2) in the communication layer (9).

3. The vacuum cleaner according to claim 2, characterized in that: the upper part of the communication layer (9) is provided with an air outlet layer (11), and the secondary air outlet tube (7) of the downstream cyclone separator (2) is extended. Connected to the air inlet and outlet (11).

4. The vacuum cleaner according to claim 2, wherein: the upstream cyclone (1) comprises a cylinder (12) provided with a primary air inlet (5), and the upper portion of the cylinder (12) is provided with a lower Conical filter cartridge

(13), the filter cartridge (13) is connected to the upper primary air outlet (10), and the primary air outlet (10) is provided with a cylindrical filter (14) in the continuous communication layer (9), the cylinder The upper edge of the body (10) is provided with a notch (15) communicating with the first dust cup (3).

The vacuum cleaner according to claim 3, characterized in that: the downstream cyclone (2) comprises an upper circular cylinder (16) projecting into the communication layer (9), and a central cone The body (17) and the lower second cup (4), the secondary air inlet (6) is disposed on the side wall of the circular cylinder (16), and the secondary air outlet (7) is disposed in the circular cylinder (16) inside, the upper end of the secondary air outlet pipe (7) is connected to the air outlet layer (11) through the communication layer (9), and the end of the secondary air outlet pipe (7) has a plurality of juxtaposed ribs ( 8), the lower part of the cone cylinder (17) is provided with an umbrella-shaped reflecting plate (18), and the center of the umbrella-shaped reflecting plate (18) is provided with a return hole (19), and the periphery and the cone of the umbrella-shaped reflecting plate (18) A dust ring (20) is connected between the side wall of the cylinder body (17) and the second dust cup (4), and the bottom surface of the second dust cup (4) is in the same shape as the bottom surface of the first dust cup (3). on flat surface.

The vacuum cleaner according to claim 1, wherein: the bottom of the dust removing device is provided with a bottom cover (21), and a dust cover (22) is disposed between the dust removing device and the bottom cover (21). The dust cover (22) is fastened to the ash drain of one of the cyclones, and the bottom cover ( _{21) is} at least engaged with the ash drain of the other cyclone.

7. The vacuum cleaner according to claim 6, wherein: the dust cover (22) is fastened to the graying port (23) of the downstream cyclone (2), and the bottom cover (21) is fastened to the dust Cover (22) and the graying port (24) of the upstream cyclone (1).

8. The vacuum cleaner according to claim 7, wherein: the graying port (23) of the downstream cyclone (2) is located at the bottom, and the dust cover (22) is hooked by a plurality of graying ports (23). ) The small cover (25) is connected to the upper part.

9. The vacuum cleaner according to claim 8, wherein: the middle portion of the upstream cyclone (1) is an upstream cyclone chamber (26), and the bottom cover (21) corresponds to the upstream cyclone chamber (26). Shaped protrusions (27).

10. Vacuum cleaner according to claim 6 or 7 or 8 or 9, characterized in that the bottom cover (21) and the dust cover (22) are hingedly connected to the outer edge of the bottom of the dust removal device in a coaxial manner.

11. A vacuum cleaner comprising a body comprising a vacuum chamber and a motor chamber housing the motor; a detachable dust removing device disposed in the vacuum chamber, comprising an upstream cyclone (1), and a plurality of a downstream cyclone separator (1) connected to the upstream cyclone separator (1); characterized in that: the downstream cyclone separator (2) is arranged side by side around the upstream cyclone separator (1) and interconnected to form a A dust cup (3), wherein each of the downstream cyclones (2) has a portion of the outer surface forming the outer edge of the first dust cup (3), and at the same time a portion of the outer surface forms the outer edge of the dust removing device.

12. A vacuum cleaner comprising a body comprising a vacuum chamber and a motor chamber housing the motor; a detachable dust removing device disposed in the vacuum chamber, comprising an upstream cyclone (1), and a plurality of a downstream cyclone separator (1) connected to the upstream cyclone separator (1); characterized in that: the downstream cyclone separator (2) is juxtaposed around the upstream cyclone separator (1) and connected to each other to form a first a dust cup (3), wherein the upstream cyclone (1) passes through a notch (15) and the first dust cup

(3) Connected.

13. A vacuum cleaner according to claim 12, characterized in that the notch (15) is located on the upper edge of the upstream cyclone (1).