JPH0197430A - Electric cleaner - Google Patents

Abstract

PURPOSE: To turn ON power supply to a motor-driven blower by a simple operation and to easily exterminate ticks or the like stored in a dust collecting chamber only by a vacuum cleaner main body by providing a switch for turning ON the power supply to the motor-driven blower by abutting a shutter plate by the closing of the shutter plate for opening and closing a suction port part. CONSTITUTION: In order to exterminate the ticks or the like, the shutter plate 25 is closed. Then, a limit switch 38 is turned ON, and when a reset button 37 is pressurized thereafter, a temperature sensing switch 36 is turned ON, power is supplied to the motor-driven blower 7 and the blower 7 is rotated. At this time, since the suction port part 21 is closed by the shutter plate 25, the inside of the dust collecting chamber 4 is turned to a negative pressure, the discharge flow of the blower 7 is sucked into the dust collecting chamber 4 through a main body side ventilation path 29 and a lid body side ventilation path 28, the discharge flow is circulated by the repetition, is turned to hot air by the exhaust heat of the blower 7 and heats the dust collecting chamber 4, and the ticks or the like stored in a paper bag filter 14 are sterilized at a discharge flow temperature higher than 50 deg.C. When the discharge flow temperature becomes 65 deg.C, the temperature sensing switch 36 is turned OFF and the blower 7 is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a vacuum cleaner having a mechanism for killing pests such as mites sucked into a dust collection chamber.

(b) Conventional technology Pests such as mites that are inhaled along with dust when cleaning a room are usually filtered out by the filter in the dust collection chamber and are not discharged outside the vacuum cleaner, but they breed inside the dust collection chamber. To prevent this, it is necessary to kill and completely exterminate them.

It is known that pests such as mites are killed by applying hot air at about 50°C. It has been known. In the vacuum cleaner shown in Fig. 7, the tip of the suction hose (51) inserted into the suction port of the main body case (50) is connected to the exhaust outlet (53) of the electric blower (52) of the main body case (50). The hot exhaust flow of the electric blower (52) is circulated through the suction hose (51) to the dust collection case (54).
4) It has a structure that kills pests such as mites inside.

However, according to the above-mentioned conventional technology, the main body booth 50〉
There is an exhaust outlet (for connecting the suction booth 51) on the exhaust side of the
53) is required, and when exterminating pests such as mites, it takes time and effort to set the long suction hose (51) to the exhaust outlet (53), and the suction hose (53) attached to the outside of the main body case (50) is required. 51) becomes bent or sagging, making the main body case (50) unstable, and since the exhaust flow circulates through the long suction hose (51), the heating efficiency of the dust collection case (54) deteriorates. There are disadvantages such as longer heating time.

(c) Problems to be Solved by the Invention The present invention has a simple configuration that allows the exhaust flow of an electric blower to be circulated to the dust collection chamber within the vacuum cleaner body while the suction port is closed by a shutter plate. To provide a vacuum cleaner that can efficiently and reliably kill pests such as mites in a short time using only the vacuum cleaner itself, thereby completely exterminating pests.

(d) Means for Solving the Problems As shown in the drawings, the vacuum cleaner of the present invention has a structure including a dust collection chamber provided with a suction port opened and closed by a shutter plate in the vacuum cleaner main body, and A blower storage chamber that communicates with a dust collection chamber, houses an electric blower JR machine, and has an exhaust port, and the exhaust side of the electric blower and the dust collection chamber are closed by the shutter plate of the suction port. The present invention is characterized in that it includes a ventilation passage that communicates with the dust collection chamber to circulate an exhaust flow to the dust collection chamber, and a switch that turns on power supply to the electric blower when the shutter plate in the closed state comes into contact with it.

(e) Effect With the above configuration, when cleaning, the shutter plate is opened and pests such as dust and mites are sucked into the dust collection chamber through the suction hose connected to the open suction port, and the exhaust flow from the electric blower is It is discharged to the outside of the vacuum cleaner from the exhaust port.

If the suction port is closed with the shutter plate after cleaning is completed, the closed shutter plate contacts the switch and the power supply to the electric blower is turned on, and the exhaust flow of the electric blower Ji II is collected by closing the suction port. Since the inside of the dust chamber becomes negative pressure, it is guided into the dust collection chamber through the ventilation path, and the exhaust air is circulated through the ventilation path and becomes hot air due to the exhaust heat of the electric blower, which heats the inside of the dust collection chamber. 50, which is the temperature at which pests such as mites die.
When the temperature of the exhaust stream reaches above °C, pests such as mites in the dust collection chamber are completely exterminated.

(f) Example Hereinafter, the structure of the vacuum cleaner of the present invention will be explained based on FIGS. 1 to 6.

(1) is the main case of the vacuum cleaner, and the upper case (1) is the main case of the vacuum cleaner.
It consists of a main body lower case (1b) and a dust collection chamber (4) with a top opening (3) that can be opened and closed with a lid (2) at the front.
The rear portions are each provided with a blower storage chamber (6) communicating with the dust collection chamber (4) and having an exhaust port (5) formed in the rear wall.

(7) is an electric blower stored in the blower storage chamber (6), and the front fan case (7a) is connected to the annular shock absorber (8).
) of the main body upper case (1a) through the upper support rib (
9) and the lower support lip (1) of the main body lower case (1b).
0), the intake side (11) and the exhaust side (12) are sealed and fixed.

(13) is a box-shaped filter with air permeability and shape-retaining properties that is housed in the dust collection chamber (4) in a manner that can be inserted and removed from the top opening (3); 3) A paper bag filter (14) that is removably housed inside the bag. (15) is the paper bag filter (14)
The holding frame for the batten board (14a), (16) is the holding frame for the batten board (14a).
4a) An engaging clamp body, the holding frame body (15) being placed on the opening edge of the box-shaped filter (13).

Furthermore, the lid body (2) is the outer cover (17) and the back! (18
), with the rear part being the upper case (1a)
It is pivoted in a state where it is always fully biased in the opening direction by a normally open biasing spring (19), and its front part is locked by a clamp body (20) provided on the lower case (1b) of the main body. This closes the upper surface opening (3>).

(21) is provided on the lid (2>) and is provided with a suction hose (2).
2), a suction hole (23) is bored in the outer cover (17), and a suction hole (23) is formed in the outer cover (17) between the outer cover (17) and the back cover (18) below the hole (23). A sliding shutter plate (25) that freely opens and closes the upper part of the hose connecting tube (24) disposed in the
), and a mouth plate pressing gasket (26) located at a part of the bottom 6 of the hose connection tube (24) is configured from the mouth plate (
14a) in an airtight manner.

<27) directs the exhaust flow of the electric blower 7) to the dust collection chamber (4).
) is a ventilation passage provided in the vacuum cleaner body for circulation to the vacuum cleaner body, and is composed of a lid side ventilation passage <28) and a main body side ventilation passage (29). The lid side ventilation passage (28) is arranged between the outer cover (17) and the back lid (18), and has one end connected to an exhaust outlet (30) opened on the side of the hose connection ffM (24). and the other end is connected to the main body case (1
) Exhaust inflow port protruding from the cover side facing surface (3 pieces)
32). The exhaust outlet (30) connects the suction hose (22) to the hose connection pipe (24).
When 2a) is inserted, the connection pipe (
When 22a) is not inserted, it is open.

The main body side ventilation passage (29) is connected to the main body case (1).
), the electric blower (7) is provided from the exhaust side (12) through the upper support rib (9), and is provided on the main body side facing surface (33) facing the exhaust inlet (32). The exhaust outlet (34) is opened. Further, (35) is a seal gasket attached to the exhaust inlet (32), and when the lid body (2) is closed, the exhaust inlet (32)
and the exhaust outlet (34) are brought into close contact and communicated airtightly.

(36) is the suction port (28) of the lid side ventilation passage (28).
21) A temperature sensing switch as a temperature sensor installed nearby, and the sensing switch (36) presses its reset button (37) on the outer cover (near the suction port (21)).
17) to protrude outward from the vacuum cleaner. The detection switch (36) is turned on when the reset button (37) is pressed, and the temperature of the exhaust flow passing through the lid side ventilation path (28) is 50°C, which is the temperature at which pests such as mites are killed. It turns off when the sensing part (36a) senses that the temperature has reached the set temperature of 65°C, which is above °C and does not cause thermal effects such as thermal deformation on the synthetic resin that makes up the vacuum cleaner body. It is the composition.

In this embodiment, this temperature sensing switch (36) is installed in the ventilation passage (28) on the lid side, but it may also be installed on the side wall of the dust collection chamber (4). In this case, the reset button is installed in the lower case (1b) of the main body. Just make it stick out.

<38) is the suction port (21) of the cover (17>).
), the shutter plate (25) is connected to the hose connection tube (24
) When the upper part is closed, the tip of the shutter plate (25) comes into contact and turns on the limit switch (38), which supplies power to the electric blower (7) via the temperature sensing switch (36). .

Further, in the electric circuit diagram shown in FIG. 6, (39) is a control circuit section, and (40) is a hand operation section mounted on the hand pipe of the suction hose (22).

When cleaning, the shutter plate (25
) to open the suction port (21), and then connect the suction hose (2
The connecting pipe (22a) of 2) is inserted into the hose connecting pipe (24), but in this state, the exhaust outlet (30) of the lid side ventilation passage (28) is blocked by the connecting pipe (22a), so the electric blower The exhaust flow from (7) does not circulate to the dust collection chamber (4), but is discharged from the exhaust port (5) and is therefore discharged from the suction hose (22).
) Pests such as mites that are inhaled with dust from the dust collection chamber (4
) is stored in the paper bag filter (14).

Next, after cleaning is completed, the shutter plate (25) is closed as shown in FIG. 1 to exterminate pests such as mites.

Then, the limit switch (38) turns on, and then when the reset button (37) is pressed, the temperature sensing switch (38) turns on.
6) is turned on, power is supplied to the electric blower (7), and the electric blower 1 (7) rotates. At this time, since the suction port (21) is closed by the shutter plate (25), the dust collection chamber (4)
The interior becomes negative pressure, and the exhaust flow from the electric blower (7) flows into the dust collection chamber (
4), the exhaust flow is circulated by repeating this process, and the exhaust heat from the electric blower (7) turns into hot air, which flows into the dust collection chamber (
4) is heated to kill the pests such as mites stored in the paper bag filter (14) at an exhaust flow temperature of 50°C or higher, and when the exhaust flow temperature reaches 65°C, the temperature sensing switch (36) is turned off. The process ends by stopping the electric blower (7).

(1.) Effects of the Invention The vacuum cleaner of the present invention is constructed as described above, and in particular, when the shutter plate that opens and closes the suction port is closed, the shutter plate comes into contact with the shutter plate, and the supply to the electric blower = 10 - It is equipped with a switch to turn on the power, and also has a ventilation path in the vacuum cleaner body that circulates the exhaust flow of the electric blower to the dust collection chamber when the suction port is closed by the shutter plate. The power supply to the electric blower can be turned on with a simple operation of blocking, and pests such as mites stored in the dust collection chamber can be easily and easily exterminated using only the vacuum cleaner itself.

Furthermore, since the switch is not turned on when the suction port is open, the electric blower will not operate on its own unless the suction hose is connected to the suction port, making it safe.

Moreover, since the ventilation passage directly communicates the dust collection chamber with the blower storage chamber, the exhaust air can be circulated over a shorter distance compared to conventional technology that uses long suction hoses, and the inside of the dust collection chamber can be heated efficiently in a short period of time. It can completely exterminate pests such as mites.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings all relate to a vacuum cleaner, and FIG. 1 is a sectional front view of the main part of an embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 3 is a sectional plan view of the main part. Fig. 4 is a cross-sectional plan view of the main part in the same cleaning state, Fig. 5 is a perspective view of the main part in the state where the lid is opened, Fig. 6 is the electric circuit diagram, and Fig. 7 is an explanatory cross-section of the conventional example. It is a diagram. (4)...Dust collection room, (6)...Blower storage room, (7
〉...Electric blower, (21)...Suction port, (27
)...Ventilation path, (38)...Limit switch (switch).

Claims (1)

[Claims] (1) A dust collection chamber provided with a suction port opened and closed by a shutter plate in the vacuum cleaner body, and a blower storage chamber that communicates with the dust collection chamber, houses an electric blower, and has an exhaust port; A ventilation passage that communicates the exhaust side of the electric blower with the dust collection chamber and circulates the exhaust flow to the dust collection chamber when the suction port is closed by the shutter plate; A vacuum cleaner comprising: a switch that turns on power supply to the electric blower when the switch comes in contact with the electric blower.