KR100606703B1 - cyclone collector for vaccum cleaner - Google Patents

Abstract

The present invention relates to a cyclone dust collector suitable for use in a vacuum cleaner, comprising a cyclone body, a contaminated air inlet for sucking contaminants and air into the cyclone body, and air for discharging the purified air from the cyclone body. In the cyclone dust collector including a discharge port and a pollutant discharge port for discharging the pollutant separated from the cyclone body, it is installed in the cyclone body, is installed inside the cyclone body, the air outlet It is installed in the opposite position, and provides a cyclone dust collector further comprises a flow guide means having a flow interference prevention unit for preventing the interference between the swirl flow and the discharge air flow generated inside the cyclone body do.

Vacuum Cleaner, Cyclone, Dust Collector

Description

Cyclone dust collector for vacuum cleaner {cyclone collector for vaccum cleaner}

1 is a longitudinal sectional view showing an embodiment of a conventional cyclone dust collector;

2 is a cross-sectional view taken along line II of FIG. 1.

Figure 3 is a longitudinal cross-sectional view showing another embodiment of a conventional cyclone dust collector

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

Figure 5 is a longitudinal cross-sectional view showing a conventional reverse cyclone dust collector

Figure 6 is a longitudinal cross-sectional view showing a first embodiment of a cyclone dust collector according to the present invention

7 is a longitudinal sectional view showing a second embodiment of the cyclone dust collector according to the present invention;

8 is a longitudinal sectional view showing a third embodiment of a cyclone dust collector according to the present invention;

Explanation of symbols for the main parts of the drawings

1, 11: cyclone body 2, 12: contaminated air inlet

4, 13: air outlet 5, 14: pollutant outlet

7, 17: guide part 8, 18: flow interference prevention part

The present invention relates to a cyclone dust collector, and more particularly to a cyclone dust collector for a vacuum cleaner suitable for use in a vacuum cleaner.

In general, a cyclone collector is a device that collects pollutants (dust, lint, scrap, etc.) contained in the air by using the cyclone principle. Cyclone dust collectors are used in various fields, and are mainly applied to vacuum cleaners for home use.

Cyclone dust collectors have been proposed in various forms such as U.S. Patent 44643748, U.S. Patent 4353008, U.S. Patent 5078761, U.S. Patent 145499, and the like.

The cyclone dust collector is a cyclone dust collector (hereinafter referred to as "forward cyclone dust collector") that is substantially the same in the direction in which air containing contaminants (hereinafter referred to as "polluted air") flows in and in which the purified air is discharged. It can be divided into clone dust collector (hereinafter referred to as "reverse cyclone dust collector").

First, the conventional unidirectional cyclone dust collector will be described.

In the unidirectional cyclone dust collector, the air suction direction is divided into a dust collector (FIGS. 1 and 2) formed in the axial direction of the cyclone body and a dust collector (FIGS. 3 and 4) formed in a tangential direction.

First, an embodiment of a conventional unidirectional cyclone dust collector will be described with reference to FIGS. 1 and 2 as follows.

On one side of the cylindrical cyclone body (1) is formed an inlet (2) for suctioning contaminated air in the axial direction, the other side is formed with an air outlet (4) for discharging the purified air in the axial direction. In addition, the cyclone body 1 is provided with a rotational force applying means 3 for rotating the air sucked in the axial direction in the tangential direction, and the contaminant for guiding the contaminants separated by the centrifugal force in the tangential direction on the outlet 4 side. A discharge port 5 is installed, and a dust collecting box 6 is detachably installed at one end of the pollutant discharge port 5.

As shown in FIGS. 3 and 4, other embodiments of the conventional unidirectional cyclone dust collector are also similar in structure to the aforementioned cyclone dust collector, and thus detailed description thereof will be omitted. However, since the suction port 12 is installed in the tangential direction with respect to the cyclone body 1, there is no separate rotational force applying means. Reference numeral 11 denotes a cyclone body, 13 denotes an air outlet, 14 denotes a pollutant outlet, and 15 denotes dust collection.

On the other hand, in the case of using the above-mentioned cyclone dust collector in a vacuum cleaner, the cyclone dust collector is installed on the cleaner body or used between the cleaner body and the suction port.

Referring to Figures 1 and 2, the operation of the conventional cyclone dust collector is as follows.

When the cyclone dust collector is operated, a suction force generating means, for example, a suction fan (not shown) of the vacuum cleaner is operated to generate suction force, so that contaminants in the room pass through the suction port 2 together with air. Is inhaled.

At this time, the contaminated air sucked in the axial direction is given a rotational force in the tangential direction while passing through the rotational force applying means (3), and thus the contaminated air rotates in the cyclone body (1). Therefore, the air, which is relatively light in weight, receives less winsimal force, causing a whirlwind while gathering into the central portion of the cyclone body 1. Then, at any moment, a flow (discharge airflow) in the direction of the air outlet is formed so that the air is discharged through the air outlet 4. However, contaminants that are heavier than air are subjected to a lot of centrifugal force and flow along the inner wall surface of the cyclone body 1, and eventually enter the dust collector 6 installed on the pollutant outlet 5 side.

Then, when the contaminants are collected in the dust collector 6 or more than a predetermined limit, the dust collector is separated from the pollutant outlet 5 to discard the contaminants and then used again by combining them.

Since the operation principle of another conventional cyclone dust collector (FIGS. 3 and 4) is similar to that described above, a detailed description thereof will be omitted. However, in other cyclone dust collectors, the polluted air flows in the tangential direction of the cyclone body so that the polluted air is subjected to centrifugal force without a separate rotational force applying means.

Referring to Figure 5, the conventional reverse cyclone dust collector is described as follows.

The upper portion of the cylindrical cyclone body 31 is formed with a suction port 32 to suck the polluted air in the tangential direction, the lower portion is provided with a pollutant discharge port 34 for guiding the pollutant separated by the centrifugal force in the tangential direction, A dust collecting box 35 is detachably installed at the pollutant discharge port 35.

On the other hand, in the reverse cyclone dust collector, unlike the forward cyclone dust collector, the air outlet 34 for discharging the purified air is installed in the axial direction in the upper portion of the cyclone body 1 where the inlet 32 is installed. .

The operation of the reverse cyclone dust collector described above is as follows.

The contaminated air sucked into the inlet 32 is lowered while rotating along the inner wall of the cyclone body 31, and the contaminants are separated and collected in the dust collector 35.

On the other hand, the purified air rises by changing the direction from the bottom of the cyclone body 1 to the air outlet 33 side by the suction force acting through the air outlet 33 is discharged to the outside of the cyclone body 33.

That is, in the reverse cyclone dust collector, the flow (orbiting flow) that rotates along the inner wall of the cyclone body 1 becomes a discharge airflow that changes in direction at the bottom of the cyclone body (the opposite side of the air outlet).

However, the conventional cyclone dust collector described above has the following problems.

First, the polluted air sucked into the cyclone body was not sufficiently subjected to centrifugal force, so that the pollutants were not effectively collected, but were carried on the exhaust air and discharged to the outside of the cyclone body again, which reduced the dust collection efficiency.

Second, the swirl flow and the discharge air flow generated in the cyclone body interfere with each other, and this has a disadvantage in that pressure loss increases and noise increases because of flow resistance. This problem occurs more seriously in the reverse cyclone dust collector. This is because in the reverse cyclone dust collector, the flows turning at the bottom of the cyclone body collide with each other in the process of turning into the discharge airflow, which causes turbulence, which acts as an air resistance element.

The present invention has been made to solve the above-mentioned problems, the object of the present invention is to provide a cyclone dust collector that can improve the dust collection efficiency.

Another object of the present invention is to provide a cyclone dust collector which can reduce noise and pressure loss by reducing flow resistance.

In order to achieve the above object, the present invention provides a cyclone body, a contaminated air inlet for sucking contaminants and air into the cyclone body, an air outlet for discharging the purified air from the cyclone body, and the cyclone body. In a cyclone dust collector including a pollutant outlet for discharging the pollutant separated from the clone body, the cyclone dust collector is installed in the cyclone body, is installed in a position opposite to the air outlet, is generated inside the cyclone body It provides a cyclone dust collector further comprises a flow guide means having a flow interference prevention unit for preventing the interference between the swirl flow and the discharge air flow.

Here, the flow interference prevention unit is preferably configured in a shape that increases in diameter toward the air outlet.

In addition, one end of the flow interference prevention portion is preferably formed with a guide portion for supporting the flow interference prevention portion, the air sucked into the discharge pressure generating region generated through the air outlet port does not flow.

Therefore, according to this invention, dust collection efficiency can be improved and noise and pressure loss can be reduced.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

6 is a longitudinal sectional view showing a first embodiment of a cyclone dust collector according to the present invention. With reference to this, a first embodiment of the present invention will be described. The same components as in the prior art are given the same name and the same reference numerals and description thereof will be omitted.

The present invention also basically consists of the cyclone body 1, the polluted air inlet (2), the air outlet (4), the dust collector (6) and the rotational force applying means (3).

However, in the present invention, the flow guide means for improving the centrifugal force of the air sucked into the cyclone body 1 and reducing the flow resistance is installed at a predetermined position inside the cyclone body. Here, the flow guide means is preferably installed on the opposite surface of the air outlet (4).

In detail, the flow guide means is provided on the opposite surface of the air discharge port 4, that is, on the outlet side of the rotation force applying means 3.

The flow guide means is a guide portion 7 and a flow interference prevention portion 8 which is connected to the guide portion and guides air to the inner wall of the cyclone body 1 and at the same time serves to reduce flow resistance. Is done. In addition, the guide 7 preferably has a cylindrical shape.

In addition, the flow interference prevention part 8 is configured in a shape in which the size becomes larger and larger as the part is discharged from the air intake portion, the large end (large side) is recessed to form the recessed portion (8a) It is preferable. This is because if the flow interference prevention part 8 is configured in such a shape, the air can be guided more smoothly toward the inner wall surface of the cyclone body from the suction side to the discharge side. In addition, it is possible to effectively prevent the interference of the swirl flow and the discharge air flow by the flow interference prevention unit (8).

Here, the flow interference prevention unit 8 may use any shape as long as the size of the flow interference preventing unit 8 increases from the air suction side to the discharge side. For example, it is possible to use a funnel shape, a fallopian tube shape, a hemispherical shape, a skirt shape, and the like.

Referring to Figure 6, the present invention will be described the operation of the unidirectional cyclone dust collector according to the first embodiment.

When the cyclone dust collector is operated, contaminated air is sucked into the cyclone body 1 through the inlet 2 of the cyclone body 1. The sucked contaminated air passes through the rotational force applying means (3) and is given rotational force in the tangential direction.

The polluted air discharged by the rotational force applying means 3 is guided in the direction of the inner wall of the cyclone body 1 in the guide portion 7. In addition, since the flow interference prevention part 8 formed on the outside of the guide part 7 has a shape that becomes larger and larger in diameter as the air is discharged from the suction side, the polluted air is more efficient in the cyclone body 1. Spread in the direction of the inner wall. That is, according to the present invention, the polluted air introduced into the cyclone body 1 is further strengthened by the flow guide means, which spreads to the inner wall surface of the cyclone body 1.

As such, air and contaminants efficiently guided to the inner wall surface of the cyclone body 1 by the flow guide means are subjected to different centrifugal forces due to the difference in weight.

Therefore, the air, which is relatively light in weight, gathers back into the central portion of the cyclone body 1 and causes a whirlwind, which forms an exhaust stream at a certain moment and is discharged through the outlet 4. Then, the pollutant that is heavier than air continues to move toward the outlet side along the inner wall of the cyclone body 1 and is discharged in a tangential direction through the pollutant outlet 5 to be collected in the dust collector 6.

On the other hand, in the present invention, the initial air flow (orbital flow) applied by the rotational force applying means 3 in the above process is guided to the inner wall surface of the cyclone body 1 by the flow guide means. Therefore, the contaminants are efficiently discharged directly to the air outlet 4 by piggybacking the exhaust air without flowing in the direction of the inner wall surface of the cyclone body 1 under the influence of the air discharge pressure generated in the air outlet 4 direction. It can be prevented.

Referring to Figure 7, a second embodiment of the cyclone dust collector according to the present invention will be described.

The basic structure of the second embodiment is similar to that of the first embodiment. That is, the cyclone body 11, the polluted air intake 12, the air outlet 13, the dust collecting box (15). However, the air inlet 12 is formed in the tangential direction of the cyclone body 11, whereby the rotational force applying means is not formed.

In this embodiment, the flow guide means is formed on the opposite surface of the air outlet 13, the flow guide means is composed of a guide portion 17 and the flow interference prevention portion (18).

Since the operation principle is the same as that of the first embodiment described above, a detailed description thereof will be omitted.

Referring to FIG. 8, a third embodiment of a cyclone dust collector according to the present invention will be described.

The third embodiment applies the flow guide means which is the gist of the present invention to the reverse cyclone dust collector.

In this embodiment, the flow guide means is composed of a guide portion 37 and the flow interference prevention portion 38, it is provided on the opposite surface of the air discharge port 33, that is, the bottom surface of the cyclone body (31). Of course, it is preferable that the large end of the flow interference prevention part 38 faces the air outlet 33 side, and the large end side is recessed. In the present embodiment, the guide unit 37 serves to guide the contaminants separated by the centrifugal force to be discharged to the dust collecting box 35 rather than to guide the suction air.

In this configuration, in the process of converting the flow sucked from the contaminated air intake 32 and the lower portion of the cyclone body 31 into the exhaust air flow, collision and interference can be efficiently reduced by the flow guide means. It is possible to reduce the resistance. Therefore, pressure loss and noise can be reduced.

In detail, the flow turning to the lower portion of the cyclone body 31 is subjected to the air discharge pressure through the air discharge port is converted into the discharge air flow. At this time, the flow direction in the conversion process can be naturally converted along the recessed interior of the flow guide means to prevent the interference and collision between the air flow. In addition, the flow guide means can prevent the contaminants flowing by the interference flow inlet flow in the cyclone body 31 separated from the air that is converted to the discharge air flow in the swirl flow to prevent the incorporation of the pollutants by interference. Will be.

On the other hand, as described in the prior art, the cyclone dust collector according to the present invention can be installed between the main body or the main body and the suction port of the vacuum cleaner.

The effect of the present invention will be described as follows.

According to the present invention, since the contaminated air sucked into the cyclone body through the suction port is efficiently guided to the inner wall surface of the cyclone body at an early stage, sufficient centrifugal force is received. Therefore, since the contaminants separated from the air are as far as possible from the center of the cyclone body in which the air discharge pressure (vacuum pressure) acts, the contaminants can be efficiently prevented from being discharged to the outside to be discharged to the outside.

In addition, the swirl flow and the discharge air flow is formed inside the cyclone body, and the area of the swirl flow and the discharge air flow is clear by the flow guide means, thereby preventing mutual interference, thereby preventing the drop in pressure loss, and also making noise. Can be reduced.

Claims (7)

A cyclone body, a contaminated air inlet for sucking contaminants and air into the cyclone body, an air outlet for discharging purified air from the cyclone body, and a contaminant for discharging contaminants separated from the cyclone body In a cyclone dust collector including an outlet, Is installed inside the cyclone body, is installed in a position opposed to the air outlet, the flow guide means having a flow interference prevention unit for preventing the interference between the swirl flow and the discharge air flow generated inside the cyclone body Cyclone dust collector, characterized in that configured to include. The cyclone dust collector of claim 1, wherein the flow interference preventing unit is configured to have a diameter that increases toward the air outlet. The cyclone dust collector of claim 2, wherein a guide part is formed at one end of the flow interference prevention part to improve a turning force of air flow. A cyclone body, a contaminated air inlet for sucking contaminants and air into the cyclone body, an air outlet for discharging purified air from the cyclone body, and a contaminant for discharging contaminants separated from the cyclone body In the forward cyclone dust collector for a vacuum cleaner including a discharge port, the discharge direction of the contaminated air and the discharge direction of the purified air is approximately the same, Inside the cyclone body is configured to increase in diameter toward the air outlet in a position facing the air outlet, for the vacuum cleaner, characterized in that the flow interference prevention unit is installed to prevent the interference of the swirl flow and the discharge air flow Forward cyclone dust collector.  The vacuum cyclone dust collector of claim 4, wherein a cylindrical guide part is formed at one end of the flow interference preventing part to improve the turning force of the air turning inside the cyclone body. A cyclone body, a contaminated air inlet for sucking contaminants and air into the cyclone body, an air outlet for discharging purified air from the cyclone body, and a contaminant for discharging contaminants separated from the cyclone body In the reverse cyclone dust collector for a vacuum cleaner including a discharge port, the discharge direction of the contaminated air and the discharge direction of the purge air, Inside the cyclone body is configured to increase in diameter toward the air outlet in a position facing the air outlet, for the vacuum cleaner, characterized in that the flow interference prevention unit is installed to prevent the interference of the swirl flow and the discharge air flow Reverse cyclone dust collector.  According to claim 6, Reverse flow cyclone dust collector for vacuum cleaner, characterized in that one end of the flow interference prevention portion to improve the turning force of the contaminant turning inside the cyclone body and to support the flow interference prevention portion is formed Device.

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