JPH01126937A - Electric clean - Google Patents

Abstract

PURPOSE: To provide a vacuum cleaner with function for effectively and safely killing a harmful organism such as a mite in sucked dirt without using a chemical agent by providing an electric heater heating the dust collection filter of the vacuum cleaner. CONSTITUTION: At a time of cleaning, a main body hose 27, an extension pipe 28 and a suction port 30 are connected and a cord is drawn out of a cord reel 3 to be connected to a power supply to perform operation. After cleaning is completed, when the operation button of the operation part 23a on this side is pushed, a changeover switch 25 is operated to supply a current to a linear heater 18 and a heating element 18a generates heat to raise the temp. in a paper bag filter 6. Usually, by holding temp. to about 60 deg.C, a mite in dirt is certainly killed. A thermal element 18b prevents the overheating of the linear heater 18 and performs fine temp. control by the phase control using a triac 21 so as to obtain set temp.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vacuum cleaner, and particularly to a vacuum cleaner suitable for home and office use.

[Conventional technology]

Conventionally, household vacuum cleaners have been equipped with a dust collection bag, as described in Japanese Patent Application Laid-Open No. 61-280830, in order to kill harmful organisms such as dust mites contained in the dust that has been sucked up. It has been proposed that the inner bag material be impregnated with a chemical having an insecticidal component, and the insecticidal action of this chemical will kill mites and the like.

[Problem that the invention seeks to solve]

The above-mentioned conventional technology has a large insecticidal effect near the surface of the inner bag impregnated with the drug, but there is a problem in that the insecticidal effect is not sufficient for mites deep within the dust layer.

In addition, if we try to have an insecticidal effect on mites that live deep inside, for example, it is necessary to use strong chemicals, which poses a safety problem because there is a risk that children may come into contact with the paper bag when it is disposed of or when stored. .

Furthermore, when the vacuum cleaner is operated, there is a risk that the chemicals will volatilize and be scattered into the exhaust gas, which also poses a safety problem.

An object of the present invention is to solve the above problems.

That is, it is an object of the present invention to provide a vacuum cleaner having a function of effectively and safely killing harmful organisms such as mites in the dust it sucks up without using chemicals.

[Means for solving problems]

In order to achieve the above object, the present invention is characterized in that an electric heater is provided to heat a dust collection filter of a vacuum cleaner.

[Effect]

With such a configuration, the dust collecting filter is heated, and at the same time, the surrounding dust sucked up in the dust collecting chamber is heated. In general, harmful organisms such as mites are sensitive to heat and dryness.For example, mites are susceptible to heat and dryness.
It is said that it will die within minutes, and if the dry conditions continue even at lower temperatures, it will die.

Therefore, as mentioned above, when the dust is heated or dried due to heating, harmful organisms such as mites in the dust are killed, so there is no need to use chemicals.
It will be safe and sanitary.

〔Example〕

Hereinafter, the present invention will be explained based on examples.

FIG. 1 shows a sectional view of the overall configuration of an embodiment of the present invention, and FIG. 2 shows an exploded perspective view of the main parts.

In FIG. 1, an electric blower 2 and a cord reel 3 are built into the rear of a main body case 1. A dust collection chamber 4 is defined in the front interior of the space 1 by a dust collection filter. The dust collecting filter consists of a box-shaped filter 5 and a paper bag filter 6, and the box-shaped filter 5 is detachably attached to the main body case 1.

A part of one side of the box-shaped filter 5 is an opening 7, and this opening 7 is configured to be openable and closable by a lid 8 about a rotation axis 8a.The opening 7 of the six-box filter 5 includes: A support plate 9 is provided to support a mounting plate 6a of a paper bag filter 6 made of Japanese paper or the like, and this support plate 9 is rotatably supported by the box-shaped filter 5. On the mounting plate 6a,
As shown in FIG. 2, an interior 6b is provided, which communicates with an intake port 10 provided in the lid 8 and is made airtight by a backing 11. Further, reference numeral 12 in FIG. 1 is a handle, 13 is a clamp, 14 is a wheel, and 15 is a caster.

In FIG. 2, the box-shaped filter 5 has a box-shaped filter material 16 with air permeability such as nonwoven fabric arranged on five sides excluding the opening 7, and a frame 17 made of synthetic resin or the like to form an image. It is formed in one piece to protect it. The filter material 16 has a structure in which two sheets are laminated, and a linear heater 18 is arranged and sandwiched between the two sheets in the shape shown in FIG. 3. Note that reference numeral 19 in FIG. 3 is an airtight backing that keeps the box-shaped filter 5 and the lid 8 airtight.

A connecting connector 20 is electrically connected to the terminal of the linear heater 18 and held in the box-shaped filter 5, and a connecting connector 21 is held inside the lid 8 so as to be detachable when the lid 8 is opened and closed with respect to the connecting connector 2o. It is a connection plug.

Moreover, as shown in FIG.
8b and an insulator 18c are formed in a coaxial shape,
And it has a certain degree of availability. As shown in FIGS. 2 and 3, the linear heater 18 is arranged in a meandering (zigzag) shape over almost the entire surface of the box-shaped filter 5.
It is located in The mutual spacing between the linear heaters 18 is set in consideration of the amount of heat generated per unit length, the insecticidal effect, etc. Further, the extending direction of the linear heater 18 disposed on the side surface of the box-shaped filter 5, that is, the surface parallel to the direction in which the paper bag filter 6 is attached and detached, is made to coincide with the direction in which the paper bag filter 6 is attached and detached.

Thereby, the single paper bag filter 6 can be taken out smoothly without being caught during attachment and detachment, and damage can be prevented.

In addition, since the inner surface of the box-shaped filter 5 is formed with appropriate irregularities by the linear heater 18, an appropriate gap is created between the contact surfaces of the paper bag filter 6 and the box-shaped filter 5, and the suction performance is improved.

FIG. 5 shows an overall circuit diagram of the electrical system of the embodiment shown in FIG. 1. Single-phase AC power is supplied to both ends of the triac 21 via the cord reel 3. The voltage across the triac 21 is selectively supplied to the motor of the electric blower 2 and the heating element 18a of the linear heater 18 via the lid switch 26 and the changeover switch 25. The lid switch 26 is opened or closed depending on whether the lid 8 is opened or closed. The selector switch 25 is configured to be selectively switched by the operating section 23 via the control section 22.

The triac 21 has an ignition phase controlled by a control unit 22, and controls the power of the electric blower according to the operation details of an operation unit 23, while a thermosensitive element 18 as a temperature sensor
Based on the temperature signal b, the power of the heating element 18a is controlled so as to maintain this temperature at a constant value.

Further, the necessary status of the vacuum cleaner is displayed on the display unit 24.

In addition, FIG. 6 shows an overall external view of the embodiment in FIG. 1.
In the figure, reference numeral 27 indicates a hose, 28 an extension tube, 29 a hand-operated portion, and 3o a suction port.

The operation will be explained below.

When cleaning, use the main body hose 27. The extension pipe 28 and the suction port 30 are connected, and the cord is pulled out from the cord reel 3 and connected to a power source for operation. After cleaning, the hand control unit 23
By pressing the operation button a, the changeover switch 25 is operated, the linear heater 18 is energized, the first power generation element 18a generates heat, and the temperature inside the paper bag filter 6 is increased.
By keeping the temperature at about 60°C, mites in the dust will surely die. The heat sensitive element 18b prevents the linear heater 18 from overheating, and performs fine temperature control by phase control using the triac 21 so that the set temperature is achieved. In addition, if a timer circuit is provided in the control unit 22 to automatically stop the power supply after maintaining the set temperature for a certain period of time, it will be convenient for operation.
When the switch 26 is opened, the switch 26 operates to stop the current supply.

When the linear heater 18 is energized, the energization state is displayed on the display section 24.

In this embodiment, the operation section 23 and the display section 24 are provided on the hand operation section 29 of the hose 27, but even if they are provided on the vacuum cleaner body, the effect of killing mites will not change in any way.

As described above, the cleaning is repeated and when the paper bag filter 6 is full of dust, a full state is displayed on the 1 display section 24. In this case, the lid 8 may be opened by operating the clamp 13, and the paper bag filter 6 may be taken out and thrown away.

According to this embodiment described above, there are the following effects.

(1) Harmful organisms such as mites in the dust accumulated in the paper bag filter 6 are surely killed by the heating by the linear heater 18 provided on the inner surface of the box-shaped filter 5 as a box-shaped container, so it is hygienic. It is. It is also highly safe because no drugs are used.

(2) The dust inside the paper bag filter 6 can be kept dry by heating, and the suction of damp dust will prevent bacteria from propagating in the dust and causing bad odors, resulting in sanitary conditions. It is true.

(3) The linear heater 18 is a linear heating element covered with an insulator, and is integrated into the nonwoven fabric filter that constitutes the ventilation surface of the box-shaped filter 5, so it does not impede ventilation. , suction performance does not deteriorate.

Furthermore, it is safe and there is no fear of electric shock.

(4) Linear heater 18 provided on the side surface inside the box-shaped film 5
Since it is arranged to extend in the direction of attachment and detachment of the paper bag filter 6, there is no resistance when pulling out one paper bag filter 6, and it can be easily pulled out, so that it is easy to handle. moreover,
Since an appropriate gap is formed between the paper bag filter 6 and the inner surface of the box-shaped container by the linear heater 18, close contact can be prevented, and ventilation loss is small and suction performance is good.

(5) Since the triac 21, which is a control element that controls the output of the electric blower 2, is switched by the changeover switch 25 to control the linear heater 18, only one control element is required, and the configuration is simplified. Therefore, it is economical.

(6) The linear heater 18 is integrated into the box-shaped filter 5,
And since it is removable, it is easy to maintain.

(7) Since the lid switch 26 is provided which is linked to the opening and closing of the lid 8, even if the lid 8 is opened, the linear heater 18 is stopped, so safety is high.

(8) Since the linear heater 18 is controlled by the triac 21, fine temperature control is possible and it is economical due to the power saving effect.

In the above embodiment, the linear heater 18 is used, but the present invention is not limited to this. In short, it is only necessary to heat the dust collecting filter section, and a filter-shaped electric heater can also be applied.

In addition to disposing the filter over the entire surface of the box-shaped filter, the effects of the present invention can also be achieved by disposing it partially.

〔Effect of the invention〕

As explained above, according to the present invention, harmful organisms such as mites can be reliably killed throughout the dust. In addition, since no chemicals are used, it is highly safe and allows for hygienic garbage disposal, which has great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is an exploded perspective view of the box-shaped filter portion of FIG. 1, and FIG. 3 is an arrangement diagram of a linear heater provided in the box-shaped filter. FIG. 4 is a partially enlarged view of the area around the linear heater, FIG. 5 is a circuit diagram, and FIG. 6 is a perspective view of the entire embodiment. 1... Main body case, 2... Electric blower, 4... Dust collection chamber, 5... Box filter, 6... Paper bag filter, 8
... Lid body, 8... Linear heater, 18a... Heat generating element, 18b... Heat sensitive element, 21... Triac,
22...control unit, 25...changeover switch.

Claims (1)

[Claims] 1. In a vacuum cleaner having a dust collection chamber defined by a dust collection filter on the suction side of an electric blower inside the main body case, an electric heater for heating the dust collection filter is provided. A vacuum cleaner characterized by: 2. In the invention set forth in claim 1, the dust collection filter is formed by attaching a removable paper bag filter to the inner surface of a box-shaped container that has shape retention and air permeability. A vacuum cleaner equipped with the electric heater. 3. In the invention as set forth in claim 2, the box-shaped container is formed by laminating two filter materials, and the electric heater is formed of a linear heater covered with an insulating material, and the linear heater A vacuum cleaner characterized in that the two filter materials are sandwiched and integrated between the two filter materials. 4. In the invention as set forth in claim 3, the linear heaters are arranged in a meandering manner over substantially the entire surface of the filter surface in the box-shaped container and with constant mutual spacing. A vacuum cleaner with special features. 5. In the invention set forth in claim 4, the extending direction of the linear heater arranged on the filter surface of the box-shaped container that is substantially parallel to the direction of attachment and detachment of the paper bag filter is made to coincide with the direction of attachment and detachment of the paper bag filter. A vacuum cleaner characterized by: 6. The invention according to any one of claims 1 to 5, wherein the electric heater is equipped with a temperature sensor, and the electric blower is controlled to have a variable output by a control element, A vacuum cleaner characterized in that a switching circuit is provided for controlling the output of the electric heater by the control element based on a temperature sensor.