JPH07284465A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a vacuum cleaner with an air cleaning function which prevents reduction in the service life of a filter for cleaning air. CONSTITUTION:When a vacuum cleaner 1 is used as air cleaner, a shutter 11 is closed and a lid body 18 is opened. As an elec tric blower 3 is driven, air in a chamber is introduced into a room air introduction path B from a room air introduction port 14. At this point, if a person carelessly forget to close the shutter a contact of a microswitch does not work and the driving of the electric blower 3 is hindered. The air purified passing through a filter 16 fitted in the room air introduction path B flows toward a suction port 3a of the electric blower 3 to be discharged outside a body case 2 via an exhaust passage A from the electric blower 3. The room air introduction path B is isolated from a dust collection chamber 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner with an air cleaning function.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an electric vacuum cleaner which can be used as an indoor air cleaner when cleaning is not performed. Such an electric vacuum cleaner is disclosed in Japanese Patent Laid-Open No. 2-224722.
As disclosed in Japanese Patent Laid-Open Publication No. JP-A-2003-264, the intake / exhaust flow path formed by the intake air blower has a water tank for collecting dust and an air cleaning filter provided at the exhaust port. When cleaning is not performed, for example, remove the cleaning tool, suck indoor air from the cleaning tool connection port by driving an electric blower, collect dust with the water storage tank, and capture fine dust with the air cleaning filter. Then, the purified air is discharged indoors. The discharged indoor air is circulated through the vacuum cleaner and the room again to further purify the indoor air.

[0003]

In the above-described conventional electric vacuum cleaner with an air cleaning function, the air cleaning filter that captures dust when used as a vacuum cleaner also serves as the indoor air cleaning means. Therefore, the air cleaning filter is likely to be clogged and the life of the filter is shortened.

An object of the present invention is to provide an electric vacuum cleaner which can prevent the life of the air cleaning filter from being shortened.

[0005]

SUMMARY OF THE INVENTION An electric vacuum cleaner according to the present invention includes an electric vacuum cleaner main body case having a storage chamber for accommodating an electric blower and a dust collection chamber having an openable / closable cleaning tool connection port, and a main body case. An indoor air introducing passage formed from the indoor air introducing opening communicating with the outside of the main body case to the storage chamber, an air purifying means arranged in the indoor air introducing passage, and an indoor air introducing opening. It has a lid that can be opened and closed.

The room air inlet of the present invention may be formed at any position on the surface of the vacuum cleaner body case. It is preferably the upper surface of the main body case. The indoor air introduction passage in this invention is formed in a part of the main body case so that the indoor air introduced from the indoor air introduction port does not come into contact with the dust collection chamber by being separated from the dust collection chamber by a partition plate or a guide. Is preferred.

Further, the indoor air purifying means in the present invention has a purpose of deodorizing mainly by a non-woven fabric, an electret filter, a dust collecting filter in which one or more sheets are arranged, activated carbon or a deodorizing filter mainly composed of a chemical adsorbent. The fragrance or the electric dust collector, which is used alone or in combination, and not only fine dust in the air,
It may be capable of removing odor as well.

[0008]

In the electric vacuum cleaner of the present invention, when cleaning, the indoor air introduction port of the electric vacuum cleaner body case is closed with the lid and the cleaning tool connection port is opened to connect the cleaning tool. When the electric blower is driven, air containing dust is sucked from the cleaning tool to the dust collecting chamber through the cleaning tool connection port. This air passes through the dust collection chamber, the dust is captured, and the air is exhausted from the storage chamber via the electric blower. At this time, since the indoor air introduction path is isolated from the dust collection chamber, the air purification unit does not reduce its performance by the air containing dust.

After cleaning, when using as an indoor air cleaner, the cleaning tool connection port is closed, the lid of the indoor air introduction port is opened, and the electric blower is driven. Is introduced into the indoor air introduction path. Here, the indoor air is purified by the air purifying means. The purified indoor air is sucked by the electric blower and supplied into the room through the storage room.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the drawings. The present invention is not limited to this. 1 to 4, the electric vacuum cleaner 1
Is composed of an electric vacuum cleaner main body case 2 and a cleaning tool 8 formed on the main body case 2 and detachably connected to a cleaning tool connection port 9 described later. Inside the main body case 2, a storage chamber 5 for storing the electric blower 3 in the rear (right side in the figure) and a dust collection chamber for detachably storing the dust collection bag 4 in the front (left side in the figure). 6 is formed. In the storage chamber 5, an exhaust port 7 formed in the rear part (right side in the figure) of the main body case 2 from the intake port 3a of the electric blower 3 through the motor case 3b
An exhaust flow path A reaching the entire area is formed.

A cleaning tool connection port 9 for connecting a cleaning tool 8 including a brush, a hose and the like is formed at the front of the dust collecting chamber 6. The cleaning tool connection port 9 is provided with a shutter 11 that can be opened and closed. The shutter 11 can close the cleaning tool connection port 9 by sliding along the shutter guide 20 and the shutter guide rib 21 formed on the front part of the main body case 2. Cleaning tool connection port 9
Communicates with the intake port 12a of the frame 12 of the dust bag 4. The frame 12 can be attached to and detached from the dust collection chamber 6 by the clamp 13.

The main body case 2 is provided with an indoor air introduction passage B which connects the indoor air introduction port 14 formed in the upper part of the main body case 2 by the partition plate 15 and the intake port 3a of the electric blower 3 (FIG. 3). ). In the vicinity of the indoor air introducing port 14 in the indoor air introducing passage B, a filter 16 for purifying indoor air, which is detachably attached to the upper surface of a net frame 17 provided in the indoor air introducing passage B, is installed. There is. Filter 1
6 is composed of an electret filter.

At the edge of the main body case 2 of the indoor air introducing port 14, one end of a lid 18 which can seal the indoor air introducing port 14 is rotatably attached. A lock member 18 a that engages with the main body case 2 is formed at the other end of the lid body 18. Beside the cleaning tool connection port 9 of the main body case 2,
A micro switch 19 that operates by opening and closing the shutter 11 is installed (FIG. 4). Micro switch 19
When the cleaning tool connection port 9 is closed by the shutter 11, the contact is brought into contact with the shutter 11 and the electric blower 3 is driven. When the cleaning tool connection port 9 is in the open state, the electric blower 3 holds the stopped state. Further, the micro switch 19 is connected in parallel with a hand switch (not shown) provided on the hose, and when the shutter 11 is open, the electric blower 3 is turned on by the hand switch of the hose connected to the cleaning tool connection port 9. It is designed to be controlled.

When the electric vacuum cleaner 1 thus constructed is used for cleaning, the lid 18 of the main body case 2 is closed and the shutter 11 is opened to connect the cleaning tool 8. When the electric blower 3 is driven, air containing dust passes through the dust collecting bag 4 from the cleaning tool 8 and is sucked into the intake port 3a of the electric blower 3 to trap the dust in the dust collecting bag 4. The air in which the dust is captured is exhausted to the outside of the main body case 2 through the exhaust passage A. At this time, the air containing dust does not enter the indoor air introduction path B formed by being partitioned from the dust collecting bag 4.
Therefore, the filter 16 for purifying the indoor air is not contaminated during cleaning, and the service life thereof is not shortened.

When the electric vacuum cleaner 1 is used as an air cleaner, the shutter 11 closes the cleaning tool connection port 9 and the lid 18 is opened. When the electric blower 3 is driven, room air is introduced into the room air introduction path B from the room air introduction port 14. At this time, if the shutter 11 forgets to close the cleaning tool connection port 9, the contact of the micro switch 19 does not operate and the drive of the electric blower 3 is prohibited.

The air purified by passing through the filter 16 provided in the indoor air introducing passage B flows toward the intake port 3a of the electric blower 3 and flows from the electric blower 3 through the exhaust passage A to the main body case 2 Exhausted to the outside. As a result, clean air is supplied to the room. Further, in the above configuration, since the filter 16 as the indoor air purifying means does not also serve as a dust collecting member at the time of cleaning as in the conventional case, clogging occurs in a fine dust collecting filter, a deodorizing filter, etc. Easy air purification elements can be used.

[0017]

According to the electric vacuum cleaner of the present invention, the air introduction passage for collecting dust and the air introduction passage for air purification can be divided, and the life of the air purification means can be extended. .

[Brief description of drawings]

FIG. 1 is a side view showing a part of an electric vacuum cleaner according to an embodiment of the present invention.

FIG. 2 is a side view showing the structure of the electric vacuum cleaner when performing cleaning.

FIG. 3 is a view corresponding to FIG. 2 showing a configuration of an electric vacuum cleaner as an air cleaner.

FIG. 4 is a front view of the electric vacuum cleaner in which the cleaning tool connection port is in an open state.

[Explanation of symbols]

 1 Electric Vacuum Cleaner 2 Electric Vacuum Cleaner Main Body 3 Electric Blower 6 Dust Collection Room 8 Cleaning Tool 9 Cleaning Tool Connection Port 11 Shutter 14 Indoor Air Inlet Port 15 Partition Plate 16 Filter (Indoor Air Purifying Means) 18 Lid A Exhaust Channel B Indoor air introduction path

Claims (1)

[Claims] 1. An electric vacuum cleaner main body case having a storage chamber for accommodating an electric blower and a dust collection chamber having a cleaning tool connection port that can be opened and closed; and a dust collection chamber defined in the main body case, An indoor air introduction path communicating from the indoor air introduction port to the outside of the main body case to the storage chamber, an air purifying unit arranged in the indoor air introduction path, and a lid body for opening and closing the indoor air introduction port are provided. An electric vacuum cleaner characterized in that.