JPH01201219A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To improve usability, durability and a clean feeling and to prevent the enlargement by reversely rotating a motor fan, passing through a hot wind from the motor fan into a dust collected in a dust collecting bag and contacting always, fresh cold wind to the motor fan when a mite, a mold, etc., in the dust are killed. CONSTITUTION:After cleaning, a cover 20 provided at an inlet port 19 of a dust collecting room 13 is closed, the rotation of a motor fan 14 is reversely rotated, the hot wind from the motor fan 14 is sent into the dust collecting room 13 and the hot wind is exhausted through a filter 23 of the cover 20. Since the exhaust is not leaked to the inlet side of the motor fan 14 again, the brush of the motor fan 14 is not set to a high temperature. Since another passage for the exhaust leakage is not provided in a cleaner main body 11, the constitution of the cleaner main body 11 becomes simple. Thus, the mite, mold, etc., can be killed by the hot wind with one touch operation, the life of the motor fan 14 is not shortened, the enlargement is not executed and the usability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vacuum cleaner used in general households.

2. Description of the Related Art Conventionally, this type of vacuum cleaner was generally shown in FIG. That is, 1 is a main body of a vacuum cleaner, and inside this vacuum cleaner main body 1 is a dust collection chamber 3 in which a dust collection bag 2 for collecting dust is removably disposed.

A motor chamber 5 containing a motor fan 4 for generating intake pressure was formed.

Problems to be Solved by the Invention In such conventional vacuum cleaners, dust mites, mold, etc. are collected and live in the garbage 6 caught in the dust collection bag 2. The user was worried that the dust mites, mold, etc. inside the vacuum cleaner might leak out into the vacuum cleaner itself, and the user felt uncomfortable.

For this reason, recently, the exhaust air from the motor fan 4 is guided into the dust collection chamber 3 using a hose 7 or the like as shown by the broken line.

A configuration has been considered in which the heat generated by the motor fan 4 causes the death of mites and mold.

However, in such a configuration, the exhaust air from the vacuum cleaner body 1 is leaked back to the intake side of the motor fan 4.
The brushes (not shown) of the motor fan 4 become hot, which shortens the life of the motor fan 4. Furthermore, it is necessary to provide a separate passage in the vacuum cleaner body 1 for exhaust leakage.
Alternatively, since the hose 7 was connected from the exhaust port to the intake port, the main body of the vacuum cleaner became large, and there were problems in that it was not easy to use and its durability was short.

The present invention solves the above-mentioned conventional problems, and is capable of killing dust mites, mold, etc. with hot air with a single touch, without shortening the life of the motor fan, and without increasing the size of the vacuum cleaner itself. The purpose is to provide a vacuum cleaner.

Means for Solving the Problems In order to solve the above problems, the vacuum cleaner of the present invention has a dust collection chamber in which a dust collection bag for collecting dust is removably disposed inside the vacuum cleaner body, and a filter. A lid that is fixed and freely openable and closable at the intake port of the dust collection chamber, and a dust collection motor fan that can be rotated in reverse and discharges hot air from the intake port through the dust collection chamber when the rotation is reversed. It is something.

Effect With the above configuration, after cleaning, the lid provided on the intake port of the dust collection chamber is closed, the rotation of the motor fan is reversed, hot air from the motor fan is sent into the dust collection chamber, and the hot air is exhausted through the filter in the lid. Because I will let you.

This hot air can kill dust mites, mold, etc. in the garbage in the dust collection bag, and since the exhaust air is not leaked back to the intake side of the motor fan like in the past, it is possible to heat the brushes of the motor fan to a high temperature. or shorten the life of the motor fan. Moreover, since no separate passage for exhaust leakage is provided in the vacuum cleaner main body, the structure of the vacuum cleaner main body is simple and does not become large, and its usability is also good.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a vacuum cleaner showing an embodiment of the present invention. In FIG. 1, reference numeral 11 denotes a vacuum cleaner body, inside which is a dust collection chamber 13 in which a dust collection bag 12 is removably disposed.
A motor chamber 15 is provided with a built-in motor fan 14 that generates intake air during cleaning. In such a configuration, in a normal cleaning state, the dust 17 sucked by the hose 16 shown by the broken line is collected in the dust collection bag 12, and the filtered air is discharged from the vacuum cleaner main body 11 through the exhaust port 18. It is discharged.

This dust collection chamber 13 has an air intake port 19 open as an entrance for the sucked dust 17, and the hose 16 is connected to the air intake port 19.
When not connected to the air intake port 19, a lid 20 is provided which can be opened and closed to prevent collected dust from coming out from the air intake port 19.

In FIG. 2, the lid 20 is slidable in the direction of the arrow, and is configured so that when the M2O is completely closed, a circuit changeover switch 21 disposed near the intake port 19 is turned on. A hot air exhaust hole 22 with a small diameter is formed in a part, and a filter 23 is fixed to this hot air exhaust hole 22.

Further, in FIG. 1, 24 is a thermistor for temperature detection attached to the motor fan 14.
When the temperature exceeds the set temperature, the power is cut off to stop operation.

FIG. 3 shows a switching circuit diagram of a vacuum cleaner. Normally, during cleaning, the circuit changeover switch 21 closes the normal rotation side circuit of the motor fan 14, and the operation switch 25 at hand closes the circuit on the normal rotation side of the motor fan 14. It can be turned on and off. Lid 2
0 is completely closed, the circuit changeover switch 21 switches in the direction of arrow 26 to reverse the motor fan 14. If the motor fan 14 is reversed here, the air flow will be like the arrow 27 shown in FIG. 1. Furthermore, since the hot air exhaust hole 22 is provided with a filter 23, the dust 17 is not discharged outside the cleaner body 11. Furthermore, since the hot air exhaust hole 22 is narrowed, the amount of air discharged is small, and the hot air that has absorbed the heat generated by the motor fan 14 passes through the dust 17 in the dust collection bag 12 and exits the vacuum cleaner body 11 from the hot air exhaust hole 22. The dust mites and mold present in the garbage 17 are killed.

With this configuration, the brush portion of the motor fan 14 is always exposed to fresh cold air from the exhaust port 18, and hot air can be applied to the dust 17 in the dust collection chamber 13 without reducing the life of the carbon brush. Furthermore, the thermistor 24 is set at a temperature slightly higher than the temperature at which dust mites, mold, etc. will die, and the power will be automatically shut off after dust mites, mold, etc. have completely died.

Effects of the Invention As described above, according to the present invention, when killing mites, mold, etc. in garbage, the motor fan is reversed and hot air from the motor fan is directed into the garbage collected in the dust collection bag. It is possible to let the brushes pass through and completely kill them with the heat, and the motor fan is always exposed to fresh cold air, which does not shorten the brush life of the motor fan. In addition, the motor fan can be reversed with just one touch of closing the lid, killing dust mites, mold, etc., and it is easy to use, durable, clean, and does not need to be bulky.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of a vacuum cleaner showing an embodiment of the present invention, Fig. 2 is an enlarged longitudinal cross-sectional view of the air intake portion of the vacuum cleaner, and Fig. 3 is a switching circuit diagram of the vacuum cleaner. , FIG. 4 is a longitudinal sectional view of a conventional vacuum cleaner. 11...Vacuum cleaner body, 12...Dust collection bag, 13...Dust collection chamber, 14...Motor fan, 19...Intake port, 2
0...Lid, 21...Circuit changeover switch, 22...
Hot air exhaust hole, 23...filter. Agent Yoshihiro Morimoto Figure 1/4--Mo 9 Fu γshi iq- class 0 211. M'aptyt change again η1. Nekki J
ul fish A Z3; Otsu 4 no L 3rd drawing 4th figure

Claims (1)

[Claims] 1. A dust collection chamber in which a dust collection bag for collecting dust is removably disposed inside the vacuum cleaner body, and a lid to which a filter is fixed and which is freely openable and closable at the air intake port of the dust collection chamber. and a dust collecting motor fan which can rotate in reverse and discharges hot air from the air intake port through the dust collecting chamber when the vacuum cleaner rotates in reverse.