JPH0739479A - Dust collector for vacuum cleaner - Google Patents

Abstract

PURPOSE:To catch always floating dust and improve the space utilizing efficiency of a vacuum cleaner by attaching a dust collector for collecting fine dust scattered in a room to a dust collecting port of the vacuum cleaner body by supplying power supply from the vacuum cleaner body except during the cleaning operation of floor surface. CONSTITUTION:A dust collector 23 for a vacuum cleaner is connected to a dust collecting port of a vacuum cleaner body. Then, power is sent from a power brush driving power source through a feeder terminal 28 to operate a DC motor 26 and fan 27 and collect floating dust in a room. The floating dust in the room supplies high voltage from a high voltage generating circuit to a flat plate electrode 25 for corona discharge so that dust is ionized by applying high voltage between a discharging flat plate electrode 18 and dust collecting flat plate electrode 19 through the dust collector composed of the high voltage generating circuit 17 and flat plate electrodes 18, 19, the dust 21 becomes charged grains 22 by ion 20 and the dust is collected on the dust collecting electrode 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collector for an electric vacuum cleaner of an electric vacuum cleaner, which sucks dust by the suction force of an electric blower to collect the dust.

[0002]

2. Description of the Related Art Conventionally, an electric vacuum cleaner and an air cleaning device have existed independently of each other. The vacuum cleaner is configured as shown in FIG. 6, and in FIG. 6, 1 is a vacuum cleaner body, 2 is a dust collecting port, 3 is an electric motor, 4 is a fan, and 5 is an exhaust port. , 6 is a dust collecting bag, 7 is a power cord, 8 is a filter, and 9 is a dust collecting chamber.

The vacuum cleaner constructed as described above is
Electric blower (electric motor 3,
Due to the suction force of the fan 4), the air flow containing dust is sucked from the dust suction port 2 into the dust collection bag 6 attached to the suction port 2 in the dust chamber 9 provided in front of the electric blower.

The dust-collecting bag 6 is made of air-permeable paper or the like. Normally, dust of 10 μm or more is trapped, but dust of less than 10 μm is trapped. Dust rate is poor and usually 50% for fine dust with a size of 0.5-5 μm
Only a small amount of dust can be captured, and these are exhausted into the room from the exhaust port 5 together with the air through the dust bag.

Here, the fine dust of 10 μm or less contains mite allergen (a mite dung or a fragment of a carcass that has become particles of 1 μm or less).

Further, the air cleaning device is constructed as shown in FIG. 7, and in FIG. 7, 10 is the body of the air cleaning device, 11 is a suction panel, 12 is a discharge panel, 13 is a fan, and 14 is. Is an electric motor, 15 is a high-density filter, and 16 is a power cord.

In the air purifying apparatus having the above-described structure, the electric motor 14 and the fan 13 are installed in the route through which the indoor air circulates through the filter (high density filter) 15, and the filter 15 cleans the indoor air. It is a thing.

[0008]

As described above, if the electric vacuum cleaner and the air cleaning device exist independently of each other, the electric vacuum cleaner is for indoor cleaning, mainly for purposes other than floor cleaning purposes. , It is necessary to secure a storage space because it is stored, and the range that can be cleaned with an electric vacuum cleaner is the accumulated dust (spilled food, dust, human hair, dandruff, textiles, etc.) that falls directly on the floor, etc. Yes, this includes accumulated dust in house dust.

Originally, the electric vacuum cleaner needs to capture house dust (floating dust) having the structure shown in FIG. 8 other than the accumulated dust, but the floating dust is deposited by human activity or the inflow of outside air, Since the re-scattering is repeated, it is impossible for the current electric vacuum cleaner by suctioning the floor surface to catch the scattered floating dust.

Here, the particle size of the suspended dust is 0.1 μm to 4 μm.
Assuming that the particle size is 0 μm and the specific gravity is 2.7, the free fall velocity of the particles during re-scattering is as shown in Table 1, and if fine dust (10 μm or less) is re-scattered, the landing time for landing on the floor due to the free fall of particles Becomes longer and stays as indoor suspended dust for a long time.

[0011]

[Table 1]

Further, there is a method of using the above-mentioned air cleaning device, but it is necessary to purchase it separately from the electric vacuum cleaner, which does not improve the storage space of the electric vacuum cleaner. Although it may be possible to capture the floating dust that has scattered using an electric blower and a dust collecting bag, there is a problem in that it cannot operate at all times because of noise and the motor rating is a short-time operation specification.

When used for cleaning the floor surface, as described in the above-mentioned prior art, in order to capture the dust of 10 μm or less, the exhaust port 5 of the vacuum cleaner body shown in FIG. 6 has a high density. It is necessary to provide the filter 8, and there is a problem that the dust collecting power of the electric vacuum cleaner decreases unless the filter is frequently cleaned or replaced.

And, for fine dust of 10 μm or less,
Since the above allergen is contained in a large amount, there is a problem that if a person inhales the scattered fine dust, it causes aspiration allergy and asthma.

[0015]

The present invention has solved the above problems and provides a main body case including a negative pressure generating portion and a dust collecting portion, which is an electric blower including a motor and a turbo fan. In an electric vacuum cleaner that connects a suction port through a connecting means such as a hose and puts the suction port in a negative pressure state to collect dust, the electric power is supplied from the electric vacuum cleaner body to the inside of the vacuum cleaner except when cleaning the floor surface. A dust collector for collecting fine dust is attached to the dust collector of the vacuum cleaner body.

[0016]

According to the above-mentioned structure of the present invention, the amount of house dust is reduced because it is possible to always collect the suspended dust floating in the room even when the floor surface is not cleaned. Human inhaled asthma and allergies caused by it are also reduced, and the problem of the storage space of the vacuum cleaner is solved.

Further, even in the floor cleaning work, since a high-density filter is not provided at the exhaust port of the electric vacuum cleaner body, fine dust can be captured without being affected by the dust collection force.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the dust collector for an electric vacuum cleaner according to the present invention will be described below with reference to FIGS.

First, as shown in FIG. 1, the structure of the dust collector 23 for the electric vacuum cleaner is such that power is supplied from the net 24, the plate electrode 25, the DC motor 26 for blowing air, the fan 27, and the dust collector of the electric vacuum cleaner. Power supply terminal 28 for receiving power, switch 3
It consists of a 0 drive knob 29 and an electric circuit section 31.

The electric circuit configuration of the dust collector 23 for the electric vacuum cleaner is as shown in FIG.
AC 100V is supplied to the converter 32, and the A / D converter 32 outputs a DC voltage. The A / D converter 3
The DC voltage output at 2 is supplied to the DC motor 26 and the high voltage generation circuit 33 via the switch 30.

Here, the switch 30 is interlocked with the switch drive knob 29 of FIG. When the switch driving knob 29 is pushed into the inside of the dust collector for the electric vacuum cleaner, the switch 30 operates and the contact of the switch 30 in FIG. 2 is connected to the broken line side. In this case, the power supply from the vacuum cleaner body is cut off.

When the switch drive knob 29 is not pushed into the inside of the dust collector for the electric vacuum cleaner, the switch 30 does not operate and the contact of the switch 30 of FIG. 2 is connected to the solid line side. In this case, the power supply from the vacuum cleaner body can be received.

An example of mounting the dust collector for the electric vacuum cleaner is shown in FIG.
And shown in FIG.

FIG. 3 shows a case where the electric vacuum cleaner is used for cleaning indoor air in addition to cleaning the floor surface.

This is a case where the dust collecting device for the electric vacuum cleaner of the present invention is connected to the dust collecting port (the dust collecting port 2 shown in FIG. 6) of the main body of the vacuum cleaner, and the switch driving knob of the dust collecting device for the electric vacuum cleaner. 29
2 has the structure that it is not pushed in, it receives power from the main body of the vacuum cleaner (power supply for driving the power brush).
Electric power is supplied to the DC motor 26 and the high voltage generation circuit 33 via the / D converter 32. The DC motor 26 and the fan 27 shown in FIG. 2 operate in a direction that sucks indoor air as shown in FIG. 3, and collects suspended dust in the room.

Further, the indoor dust collected in the dust collector for the electric vacuum cleaner is subjected to corona discharge by supplying a high voltage from the high voltage generating circuit 33 shown in FIG. 2 to the flat plate electrode 25, as shown in FIG. The indoor suspended dust is charged to collect on the dust collecting electrode side.

In the above-mentioned case, the dust collector shown in FIG. 4 utilizing the high-voltage corona discharge for the collected indoor suspended dust is a dust collector composed of a high-voltage generating circuit section 17 and plate electrodes 18 and 19. From the discharge flat plate electrode 18 to the dust collecting flat plate electrode 1
Ionization proceeds by applying a high voltage between 9 and the dust 21 becomes charged particles 22 by the ions 20 and is collected by the dust collecting electrode 19.

The above-mentioned dust collecting capability is obtained between flat plate electrodes of floating dust (see FIG. 4).
(Between the discharge flat plate electrode 18 and the dust collecting flat plate electrode 19)
The particle size of the suspended dust is 0.1 μm to 40 μm as shown in Table 1, and the dust collecting electric field strength is 3 kV.
Table 2 shows the relationship between the particle size of the suspended dust and the particle moving speed when the value is / cm.

[0029]

[Table 2]

FIG. 5 shows the case where the electric vacuum cleaner is used for cleaning the floor surface.

When the dust collector for the electric vacuum cleaner of the present invention is connected to the exhaust port 34 shown in FIG. 5 of the main body of the electric vacuum cleaner,
The structure of the exhaust port of the electric vacuum cleaner body is the structure of the dust collecting port 2 of FIG. 6 so that the dust collecting device for the electric vacuum cleaner can be attached. Further, the exhaust port 34 is provided with a rib 35 for operating the switch drive knob 29 of the dust collector for the electric vacuum cleaner of FIG. 1, and the switch drive knob 29 is operated when the exhaust port 34 is attached. In the switch 30 of FIG. 2, the A / D converter output circuit is opened.

Further, the fan 27 attached to the DC electric motor 26 is rotated by the exhaust of the electric vacuum cleaner to drive the DC electric motor 26. By driving the DC motor 26, the DC motor 26 generates power and supplies electric power to the high voltage generation circuit 33, so that the high voltage generation circuit 33 operates without power supply from the vacuum cleaner body.

The method of collecting fine dust in the exhaust gas is the above-mentioned charged dust collection by corona discharge. Although one embodiment of the present invention has been described above, a method of incorporating it in the main body of the electric vacuum cleaner is also conceivable.

[0034]

Since the dust collector for the electric vacuum cleaner of the present invention has the above-described structure, it is possible to simply attach the dust collector for the electric vacuum cleaner to the electric vacuum cleaner without purchasing a separate air cleaning device. It is possible to collect airborne dust in the room, improve the utilization efficiency of the vacuum cleaner, improve space utilization efficiency of the vacuum cleaner, and constantly collect the airborne dust in the room. The generation of house dust can be reduced, the number of generation of mites on the floor can be reduced by reducing the house dust, and the reduction of mites can reduce inhalable asthma and allergies that affect the human body.

Moreover, by attaching to the exhaust port of the main body of the electric vacuum cleaner, it is possible to capture fine dust that becomes an allergen, and it is not necessary to clean or replace the high-density filter, so maintenance is easy. In addition, a driving power source is not required and the structure can be simplified.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram of essential parts showing an embodiment of a dust collector for an electric vacuum cleaner according to the present invention.

FIG. 2 is an electric circuit diagram of the dust collector for the electric vacuum cleaner of the present invention.

FIG. 3 is a cross-sectional configuration diagram of essential parts showing a state in which the dust collecting device for an electric vacuum cleaner of the present invention is attached to a dust collecting port of an electric vacuum cleaner body.

FIG. 4 is an explanatory diagram of a dust collector using high voltage corona discharge.

FIG. 5 is a cross-sectional configuration diagram of essential parts showing a state in which the dust collector for an electric vacuum cleaner of the present invention is attached to an exhaust port of an electric vacuum cleaner body.

FIG. 6 is a cross-sectional configuration diagram of main parts of a conventional electric vacuum cleaner.

FIG. 7 is a cross-sectional configuration diagram of a main part of a conventional air cleaning device.

FIG. 8 is an explanatory diagram of the formation of house dust.

[Explanation of symbols]

 24 Net 25 Dust Collection Flat Plate Electrode 26 DC Motor 27 Fan 28 Power Supply Terminal 29 Switch Drive Knob 30 Switch 31 Electric Circuit Section 32 A / D Converter 33 High Voltage Generation Circuit Section 34 Exhaust Port 35 Rib

Claims (6)

[Claims] 1. A suction port is connected to a main body case provided with a negative pressure generating section composed of an electric blower including a motor and a fan and a dust collecting section via a connecting means such as a hose, and the suction port is in a negative pressure state. In an electric vacuum cleaner that collects dust as a dust collector, a dust collector that collects the fine dust scattered in the room by the power supply from the electric vacuum cleaner main body except the floor cleaning work is installed on the main body of the electric vacuum cleaner. A dust collector for an electric vacuum cleaner, characterized by being attached to. 2. The dust collector comprises an electrostatic dedusting system or an ozone deodorizer having a power supply terminal corresponding to the power supply terminal of the vacuum cleaner body, and the power is supplied to the vacuum cleaner body. The dust collecting device for a vacuum cleaner according to claim 1, wherein the dust collecting device is obtained from a power supply terminal for supplying the brush driving motor to the brush driving motor through the suction hose. 3. The dust collecting apparatus supplies electric power to the dust collecting apparatus from a power supply terminal of the electric vacuum cleaner body without using an electric blower of the electric vacuum cleaner body to generate electric power for fine dust scattered in a room. 2. The dust collecting apparatus for an electric vacuum cleaner according to claim 1, further comprising an electric blower having a function smaller than an electric blowing function of the electric vacuum cleaner body, which blows air toward the dust collecting bag inside the vacuum cleaner body. 4. The electric vacuum cleaner according to claim 1, wherein the dust collector is attached to an exhaust port of the vacuum cleaner main body during floor cleaning to collect fine dust discharged from the vacuum cleaner main body. Machine dust collector. 5. When the dust collecting device is attached to the exhaust port of the vacuum cleaner body, a switch for changing the system path of the dust collecting electric circuit is provided inside the dust collecting device, and the switch is the exhaust port of the vacuum cleaner body. The dust collecting device for an electric vacuum cleaner according to claim 4, wherein the dust collecting device is configured to operate by a protruding rib provided on the. 6. The main body of the electric vacuum cleaner, wherein the dust collector attached to the exhaust port of the main body of the electric vacuum cleaner uses the exhaust air of the electric blower main body of the electric vacuum cleaner instead of supplying power from the main body of the electric vacuum cleaner. The dust collector for an electric vacuum cleaner according to claim 4 or 5, wherein an electric blower having a smaller function than the electric blower function is used as a power generator for the dust collector.