JP2001346733A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner having a cyclone duct collecting machine which can efficiently collect the bulky dust while preventing the bulky dust from being adhered to an inner surface of an external wall of an outer cyclone chamber as much as possible, and easily dispose the accumulated dust with the excellent dust collection volume efficiency of the bulky dust. SOLUTION: (1) A pocket is provided in the external wall of the outer cyclone chamber. (2) A bulky dust accumulation chamber communicated with the pocket is provided on a lower portion of the pocket. (3) A small dust accumulation chamber is provided on a lower portion of an inner cyclone chamber. (4) The bulky dust accumulation chamber is attached/detached to/from a cyclone unit comprising the outer cyclone chamber and the inner cyclone chamber. (5) The small dust in the small dust accumulation chamber is discharged into the bulky dust accumulation chamber when the bulky dust accumulation chamber is detached from the cyclone part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an electric vacuum cleaner having a cyclone dust collector.

[0002]

2. Description of the Related Art Conventionally, there has been a cyclone dust collector utilizing internal and external cyclones as shown in FIG. FIG. 4 is a longitudinal sectional view of a conventional example. The dust collecting process in the cyclone dust collector according to this conventional example is as follows.

First, a cyclone chamber 8 outside the primary inlet 7.
The dust-containing air that has flowed substantially tangentially into the inside descends while forming a cyclone flow along the inner surface of the outer wall of the outer cyclone chamber 8. During this descent process, coarse dust is first separated and collected at the bottom of the outer cyclone chamber 8. Thereafter, the dust-containing air that has formed the cyclone flow flows into the gap between the outer cyclone chamber 8 and the inner cyclone chamber 10 through the inflow hole 9 provided in the inner wall of the outer cyclone chamber 8. afterwards,
The dust-containing air is supplied to the outer cyclone chamber 8 and the inner cyclone chamber 10.
And flows into the inner cyclone chamber 10 from the secondary inlet 11 in a substantially tangential direction. The introduced dust-containing air descends while forming a cyclone flow along the inner surface of the outer wall of the inner cyclone chamber 10. In this descending process, the fine dust is separated and collected from the bottom of the inner cyclone chamber 10 into the fine dust collecting chamber 12. As a result, the dust-containing air is purified, becomes clean air, and is exhausted from the outlet 13.

[0004]

The cyclone dust collector according to the conventional example has a drawback that coarse dust adheres to the inner surface of the outer wall of the outer cyclone chamber 8 due to centrifugal force.

Further, coarse dust separated in the outer cyclone chamber 8 is accumulated on the bottom surface of the outer cyclone chamber 8, but there is a drawback that the coarse dust has a large volume and poor dust collection volume efficiency.

Accordingly, the present invention can efficiently collect the coarse dust while preventing the coarse dust from adhering to the inner surface of the outer wall of the outer cyclone chamber, and can improve the dust collection volume efficiency of the coarse dust. It is an object of the present invention to provide a vacuum cleaner equipped with a cyclone dust collector that can easily and easily dispose of accumulated dust.

[0007]

Means for Solving the Problems To solve the above problems, the electric vacuum cleaner according to the first aspect employs the following means.

A pocket is provided on the outer wall of the outer cyclone chamber.

[0009] A coarse dust accumulation chamber communicating with the pocket portion is provided below the pocket portion.

In the electric vacuum cleaner according to the present invention, the following means is employed.

[0011] A small dust accumulation chamber is provided below the inner cyclone chamber.

The coarse dust accumulation chamber and a cyclone section including an outer cyclone chamber and an inner cyclone chamber are detachably configured.

[0013] When the coarse dust accumulation chamber is removed from the cyclone section, the fine dust in the small dust accumulation chamber is discharged into the coarse dust accumulation chamber.

Hereinafter, the function of the solution will be described.

In the electric vacuum cleaner according to the first aspect, a pocket portion is provided on the outer wall of the outer cyclone chamber, and a coarse dust accumulation chamber communicating with the pocket portion is provided below the pocket portion.

The cyclone flow of the dust-containing air introduced into the outer cyclone chamber falls along the inner surface of the outer wall of the outer cyclone chamber. At this time, coarse dust in the dust-containing air is collected by the pocket. Then, it falls into the garbage collecting chamber communicating with the pocket portion, and is accumulated in the garbage collecting chamber.

As described above, in the electric vacuum cleaner according to the first aspect, since the coarse dust is efficiently collected by the pocket portion, it is possible to prevent the coarse dust from adhering to the inner surface of the outer wall of the outer cyclone chamber as much as possible. It is.

Further, unlike the conventional vacuum cleaner, coarse dust is not accumulated on the bottom surface of the outer cyclone chamber, but is accumulated in a coarse dust accumulation chamber provided separately from the outer cyclone chamber. As a result, the dust collection volume efficiency for coarse dust is also high.

In the electric vacuum cleaner according to the second aspect, a small dust accumulation chamber is provided below the inner cyclone chamber. Also,
The coarse dust accumulation chamber and a cyclone unit including an outer cyclone chamber and an inner cyclone chamber are configured to be detachable. Furthermore, when the coarse dust accumulation chamber is removed from the cyclone section, the small dust in the small dust accumulation chamber is discharged into the coarse dust accumulation chamber.

As described above, since the coarse dust accumulation chamber and the cyclone unit are detachable, the dust can be easily discarded.

In other words, the dust-containing air introduced into the inner cyclone chamber descends as a cyclone flow along the inner wall of the inner cyclone chamber. At this time, the fine dust in the dust-containing air is separated and falls into the fine dust accumulation chamber provided at the lower part of the inner cyclone chamber. Fine dust accumulated in this way is removed when the coarse dust accumulation chamber is removed from the cyclone section.
It is discharged into the garbage collection room. In addition, since the waste collection chamber is detachable from the cyclone unit, the waste collection chamber can be removed from the cyclone part, and the waste and fine waste accumulated in the waste collection chamber can be easily disposed of in a trash box or the like. It is possible.

Thus, it is possible to provide a user-friendly vacuum cleaner.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall configuration diagram of an embodiment of the electric vacuum cleaner according to the present invention. In the figure, reference numeral 14 denotes a main body of an electric vacuum cleaner having a built-in electric blower, 15 denotes a hose connected to a suction port of the main body 14 of the electric vacuum cleaner, 6 denotes a cyclone section including the outer cyclone chamber 1 and the inner cyclone chamber 4, and 16 denotes an extension. tube,
Reference numeral 17 denotes a suction port provided at the tip of the extension pipe. By driving the electric blower built in the electric vacuum cleaner main body 14, dust-containing air is sucked from the suction port 17. The dust-containing air passes through the extension pipe 16, the cyclone section 6, and the hose 15, and is exhausted from an exhaust port (not shown) of the electric vacuum cleaner main body 14.

FIG. 2 is a partially cutaway perspective view of the cyclone portion, and FIG. 3 is a longitudinal sectional view of the same.

The dust-containing air sucked from the suction port 17 passes through the extension pipe 16, and is connected to the primary inlet 1 connected to the extension pipe 16.
8 into the outer cyclone chamber 1. The primary inlet 18 is configured such that the dust-containing air forms a cyclone flow along the wall surface of the outer cyclone chamber 1. That is, the configuration is such that the dust-containing air flows from the primary inlet 18 into the outer cyclone 1 in a substantially tangential direction.

The dust-containing air introduced into the outer cyclone chamber 1 descends while forming a cyclone flow along the inner surface of the outer wall of the outer cyclone chamber 1. In this descending process, the coarse dust is first separated and is accumulated in the coarse dust accumulation chamber 3 communicating with the outer cyclone chamber 1.

That is, by the protruding pocket portion 2 provided at the lower portion of the outer cyclone chamber 1, coarse dust in the dust-containing air forming the cyclone flow is collected and accumulated in the coarse dust accumulation chamber 3. It goes.

The dust-containing air from which the coarse dust has been removed flows into the gap between the outer cyclone chamber 1 and the inner cyclone chamber 4 through a plurality of inlet holes 20 provided in the inner wall of the outer cyclone chamber 1. Thereafter, the dust-containing air rises in the gap between the outer cyclone chamber 1 and the inner cyclone chamber 4 and flows into the inner cyclone chamber 4 from the secondary inlet 22.

The secondary inlet 22 is configured such that the dust-containing air forms a cyclone flow along the wall surface of the inner cyclone chamber 4. That is, the configuration is such that the dust-containing air flows into the inner cyclone chamber 4 from the secondary inflow port 22 in a substantially tangential direction.

The dust-containing air that has flowed in descends while forming a cyclone flow along the inner surface of the outer wall of the inner cyclone chamber 4. In this descending process, the fine dust is separated and collected in the fine dust collecting chamber 5 from the bottom of the inner cyclone chamber 4.

The lower end of the small garbage collecting chamber 5 is open,
A packing 21 is interposed between the bottom of the coarse dust accumulation chamber 3 and the bottom. Here, the packing 21 is provided in a shape fixed to the bottom surface of the coarse dust accumulation chamber 3. And the garbage collection room 3
Is provided so as to be detachable from the cyclone unit 6, so that the coarse dust accumulation chamber 3 can be removed from the cyclone unit 6. Further, the bottom surface of the small garbage collecting chamber 5 is open. Therefore, when the coarse dust accumulation chamber 3 is detached from the cyclone unit 6, fine dust is discharged from the bottom surface of the small dust accumulation chamber 5 into the coarse dust accumulation chamber 3.

After the fine dust is collected in the inner cyclone chamber 4, the clean air is sucked and discharged from the discharge port 19, passes through the hose 15 communicating with the discharge port 19, and passes through the main body 1 of the electric vacuum cleaner.
4 is exhausted to the outside through the exhaust port provided.

[0034]

As described above, the present invention is configured as described above, so that coarse dust is efficiently collected while preventing the coarse dust from adhering to the inner surface of the outer wall of the outer cyclone chamber as much as possible. In addition, it is possible to provide an electric vacuum cleaner equipped with a cyclone dust collector, which has good dust collection volume efficiency of coarse dust and can easily dispose of accumulated dust.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of an electric vacuum cleaner according to the present invention.

FIG. 2 is a partially cutaway perspective view of a cyclone unit.

FIG. 3 is a longitudinal sectional view of the same.

FIG. 4 is a longitudinal sectional view of a conventional example.

[Explanation of symbols]

 1. Outside cyclone room 2. Pocket part 3. Rough garbage collection room 4. Inside cyclone room 5. Fine garbage collection room 6. Cyclone part 14. Electric vacuum cleaner body 15. Hose 16. Extension pipe 17 Suction port 18 Primary inlet 19 Outlet 20 Inlet 21 Packing 22 Secondary inlet

Claims (2)

[Claims] 1. An electric vacuum cleaner comprising a cyclone dust collector comprising an outer cyclone chamber having a substantially cylindrical shape and an inner cyclone chamber having a substantially truncated cone shape, wherein a pocket portion 2 is provided on an outer wall of the outer cyclone chamber 1, and the pocket portion is provided. While collecting coarse garbage by 2,
An electric vacuum cleaner wherein a coarse dust accumulation chamber 3 communicating with the pocket 2 is provided below the pocket 2. 2. A small dust accumulation chamber 5 is provided below the inner cyclone chamber 4. The coarse dust accumulation chamber 3 and a cyclone section 6 including the outer cyclone chamber 1, the inner cyclone chamber 4, and the like are detachable. That is, when the waste collection chamber 3 is removed from the cyclone unit 6,
2. The electric vacuum cleaner according to claim 1, wherein fine dust in the small dust accumulation chamber 5 is discharged into the coarse dust accumulation chamber 3. 3.