JPH02189121A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To execute tick stamping out operation by using a control circuit by connecting a shutter switch, a temperature detecting switch and a tick stamping out operation indicating lamp in a series between control signal input portions of a control circuit of a motor-driven blower. CONSTITUTION:A dust collecting chamber having a suction opening opened and closed by a shutter plate and a motor-driven blower 7 are provided, whereby an exhaust air current of the motor-driven blower 7 is circulated into the dust collecting chamber to kill harmful microorganism such as a tick or the like captured in the dust collecting chamber by cleaning operation by heating. A shutter switch 23 turned on when the suction opening is shut by the shutter plate, a temperature detecting switch 23 turned off when the heating temperature in the dust collecting chamber reaches a designated temperature and a tick stamping out operation indicating lamp 26 are connected in a series between control signal input portions 39a, 39b of a control circuit 37 adapted to control the rotation of the motor-driven blower 7. By the above simple constitution, tick stamping out operation can be conducted by using the control circuit adapted to control the rotation of the motor-driven blower.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a vacuum cleaner adapted to exterminate harmful microorganisms such as mites trapped in a dust collection chamber.

(b) Prior art As a technology prior to the present invention, Japanese Patent Application Laid-Open No. 62-12702
No. 6 discloses a vacuum cleaner that exterminates harmful microorganisms such as mites trapped in a dust collection chamber by exterminating them by heating the dust collection chamber. In this conventional technology,
Although it has been suggested that the display section be turned on during operation to exterminate ticks, etc., the specific configuration has not been disclosed, and there is also no suggestion that the control circuit that controls the rotation of the electric blower be used for extermination operation of mites. is not.

(c) Problems to be Solved by the Invention The present invention has a simple configuration, and uses a control circuit that controls the rotation of an electric blower to carry out mite extermination operation, and a mite extermination operation display lamp that displays this mite extermination operation. The purpose of the present invention is to provide a vacuum cleaner which is lit in conjunction with the drive of an electric blower to notify the operation of exterminating mites.

(d) Means for solving the problems In order to solve the above problems, the vacuum cleaner of the present invention has a dust collection chamber equipped with a suction port opened and closed by a shutter plate, and an electric feeder, In the vacuum cleaner, the vacuum cleaner performs a mite extermination operation in which harmful microorganisms such as mites captured in the dust collection chamber during the cleaning operation are killed by heating by circulating the exhaust flow of the electric blower to the dust collection chamber. A shutter switch that is turned on when the shutter plate closes the suction port is provided between a control signal input section of a control circuit that controls the rotation of the electric blower, and a shutter switch that is turned on when the shutter plate closes the suction port and when the heating temperature in the dust collection chamber reaches a predetermined temperature change. It is characterized by a temperature detection switch that is turned off at certain times, and a tick extermination operation indicator lamp that are read directly in series.

(e) Effect With the above configuration, the rotation of the electric blower is controlled by the control circuit to perform a cleaning operation, and this cleaning operation traps harmful microorganisms such as mites together with dust in the dust collection chamber.

After the cleaning is completed, a mite extermination operation is performed to exterminate harmful microorganisms such as mites, that is, when the shutter plate is closed, the shutter switch is turned on, and when the temperature detection switch is then turned on, the shutter switch, temperature detection switch, and The pair of control signal input parts of the control circuit are electrically connected and conductive via the tick extermination operation indicator lamp, and the control circuit rotates the electric feeding R machine at the highest speed. Then, the dust collection chamber is heated by the circulation of the exhaust flow from the electric blower, and when the heating temperature inside the dust collection chamber reaches a predetermined temperature corresponding to the temperature that kills harmful microorganisms such as mites, the temperature detection switch is turned off and the mite extermination operation starts. stop.

The mite extermination operation display lamp lights up in direct conjunction with the rotational drive of the electric blower during the mite extermination operation,
It will be clearly announced that the tick extermination operation is in progress.

(f) Example Hereinafter, the vacuum cleaner of the present invention will be explained based on FIGS. 1 to 4.

In Figures 2 to 4, (1) is the vacuum cleaner body of the vacuum cleaner of the present invention, and the front part has a dust collection chamber (3) that is opened and closed with a lid body (2), and the rear part has a dust collection chamber (3) that is opened and closed. Each has a blower storage chamber (6) which communicates with the dust collection chamber (3) through a ventilation port (4) and has an exhaust port (5) formed in the rear wall.

(7) is an electric blower housed in the blower storage chamber (6), and its intake side (7a) is airtightly communicated with the dust collection chamber (3). (8) is a box-shaped filter with breathability and shape retention that is removably housed in the dust collection chamber (3);
Reference numeral 9) is a paper bag filter that is removably housed in a box-shaped filter (8), and the paper bag filter (9) is made of an air-permeable paper bag that does not allow harmful microorganisms such as mites to pass through.

Further, (10) is an intake filter, and (11) is an exhaust filter.

Kirani (12) is a suction port that is provided on the lid (2) and rotatably connects the suction hose, and includes a suction port (13) and a hose connection tube (14) that rotatably holds the suction hose.
), and a sliding shutter plate (15) located above the hose connection tube (14) to open and close the suction port (13).
And the configuration is hindered.

In addition, (16) circulates the exhaust flow of the electric blower (7) to the dust collection chamber (3) and heats the dust collection chamber (3) to a temperature that kills harmful microorganisms such as mites captured by the paper bag filter (9). A circulation passage provided in the vacuum cleaner body (1) for heating the inside of the vacuum cleaner, which includes a body side circulation passage (18) provided with a circulation inlet (17) in the blower storage chamber (6), and the suction opening portion. (12) and a lid side circulation i% (20) provided with a circulation outlet (19) in the hose connection tube (14). The circulation 1m) (19) is the suction port (12) during cleaning operation.
) when the suction hose is connected to the chamber, the chamber is closed and the exhaust stream is not circulated, and when the suction hose is not connected during the tick extermination operation, it is opened and the exhaust stream is circulated.

(21) is a push-button type mite extermination switch button located on the right side of the top center of the vacuum cleaner body (1), and (22) is located in the circulation path (16);
This thermoswitch is a bimetallic thermoswitch that is turned on by pressing 1).
22) is turned off when the heating temperature in the dust collection chamber (3) reaches 50"C or higher, which is the temperature for killing harmful microorganisms such as mites, and the corresponding exhaust flow rate a reaches 60"C. It is configured to do this.

(23) is a shutter switch provided in the suction port (12), which is turned on when the shutter plate (15) comes into contact with the shutter plate (15) when the room is closed, and turned off when the shutter plate (15) is opened. It is configured to do this.

(24) is a display panel disposed at the center of the top surface of the cleaner body (1).

(25) is a tick extermination operation display section, and a light emitting diode (26 ) is backlit and lights up to notify the user.The light emitting diode (26) is composed of a red light emitting diode.

(27) is the blower storage part of the vacuum cleaner body (1) <6)
A control board storage section formed in the upper part, the upper surface of which is covered with the display panel board (24) and also contains circuit components (28).
...and the light emitting diode (2) for displaying the tick extermination operation.
6) and a control circuit board Fi (30) equipped with a blower control triac (29) with a heat sink (40) located in the intake side (7a) space.

(31) is a dust indicator that detects the negative pressure in the air intake side (7a) space to notify the amount of dust collected in the paper bag filter (9), and (32) is an indicator window.

Next, a description will be given based on a circuit diagram of a cleaning operation state shown in FIG.

(30) is the control circuit board, and (33) is an operation circuit housed in a hand-held operation unit (not shown) provided at the tip of a suction hose that is detachably attached to the suction port (12). Board, <34a) (34b) is the suction port (12)
A pair of control signal input terminals for remote operation are provided in the control signal input terminals (35), and the operation circuit board (33) is connected to a pair of copper wires (35) (35) embedded in the suction hose. 34a) < 34b), thereby electrically connecting to the control circuit board (30).

The operation circuit board (33) incorporates a variable resistor (36) for remote control and a voltage dividing resistor (R8).

The control circuit board (30) includes a triac (29) for controlling the electric blower (7) and a power transformer (T1).
It has a control circuit section (37) that controls the phase of the try book (29) via a pulse transformer (PTl) by variable operation of the variable resistor (36). Then, in the control circuit section <37), AC i 100V
quotient JT [fi (38>ha power supply 5
) 't' is stepped down, rectified by a current diode (Dl), resistor (R1) and Zener diode (Z D 1 )
The signal is shaped into a waveform and becomes the power source for the control circuit section (37).

The rotation of the electric blower (7) is controlled by the variable resistor (36).
By varying the variable resistor (36) and the voltage dividing resistor (
By changing the series resistance value of the combined resistance with R8) and the resistor (R2) of the control circuit section (37), the capacitor (
This is done by controlling the charging time of C1).
The potential of this capacitor (C1) is the resistance (R3) (R4)
When the voltage of the programmable unijunction transistor [P UTI (P 1 )] is exceeded, the charge of the capacitor (C1) is divided by PUT (P 1 ), the pulse transformer (PTI), and the resistor (R5) in parallel. is discharged through the circuit, thereby turning on the trybook (29) and energizing the electric blower (7), and repeating such charging and discharging of the capacitor (C1) every half cycle of the commercial power supply (38). Power control is performed by phase control of the triac (29). Also, the resistor (R6) and capacitor (C2) constitute a snubber circuit, and the resistor (R7)
) is a gate current limiting resistor, and (D2) is a backflow prevention diode.

(R9) is a high resistance value (IOM) for electrostatic dispersion connected between the negative winding and the secondary winding of the power transformer (T1).
Ω).

Furthermore, the pair of control signal input terminals (34a) (34
b), between the pair of control signal input parts (39a) and (39b) of the control circuit part (37), that is, the PUT (
PL) gate resistor (R2) and capacitor (C1)
The shutter switch (23), the thermoswitch (22), and the red core light emitting diode (26) for displaying the tick extermination operation are connected in series between them.

In the cleaning operation state, the operating circuit board (33) is connected to the control circuit board (30), so the rotation of the electric blower (7) is controlled by changing the variable resistor (36). The suction force is varied depending on the surface condition.

At this time, since the shutter plate (15) is open, the shutter switch (23) is turned off and the light emitting diode (26) for displaying the tick extermination operation does not light up.

On the other hand, in the tick extermination operation state, the shutter plate (15) is closed, so the shutter switch (23) is turned on, and when the thermal switch (22) is turned on in this state, the shutter switch (23) and the thermal switch (22) are turned on.
2) and the pair of control signal input parts (39a) (39b) via the light emitting diode (26) for displaying the tick extermination operation.
is electrically connected and conductive, so the control circuit section (37)
rotates the electric blower (7) at maximum speed. At this time, the light emitting diode (26) is a charging/discharging capacitor (C1).
As the charging current flows, the electric blower (7)
Lights up in direct conjunction with the rotational drive of the Then, when the thermal switch (22) is turned off, electric ventilation begins! (7) is stopped and the light emitting diode (26) is also turned off at the same time.

With the above configuration, when performing cleaning operation, the suction port (1
2) Open the shutter plate (15) and connect the suction hose. Then, the shutter switch (23) is turned off to enter the cleaning operation state, the variable resistor (36) is connected to the control circuit (37), and the electric blower (7) is controlled by variable operation of the variable resistor (36). ), that is, the number of rotations is varied to vary the suction force. Through this cleaning operation, harmful microorganisms such as mites are captured together with dust in the paper bag filter (9) of the dust collection chamber (3). be done.

After cleaning, in order to exterminate the harmful microorganisms, the suction hose is removed and the shutter plate (15) is closed. Then, the shutter switch (23) turns on and enters the tick extermination mode, and in this state, press the tick extermination switch button (23).
When 1) is pressed, the thermoswitch (22) is turned on and tick extermination operation is started, the electric blower (7) rotates at maximum speed, and the exhaust air flows through the circulation passage (16) to the collection chamber (m). 3) and heats the inside of the dust collection chamber (3).
3) When the heating temperature inside reaches 50°C or higher, the corresponding exhaust flow temperature reaches 60°C, the thermoswitch (22) is turned off and the mite extermination operation is stopped, and this state Harmful microorganisms such as mites are killed. During this mite extermination operation, the mite extermination operation display light emitting diode (26) lights up in direct conjunction with the rotational drive of the electric blower (7) to illuminate the mite extermination display section (25);
Visually alerts you that tick extermination is in progress.

(g) Effects of the Invention Since the vacuum cleaner of the present invention is constructed as described above, a shutter switch, a temperature detection switch, and a mite extermination operation display lamp are installed between a pair of control signal input sections of the electric blower control circuit. With a simple circuit configuration that is simply connected in series, tick extermination operation can be performed using the control circuit, which has the effect of making effective use of the control circuit. Moreover, since the mite extermination operation indicator lamp lights up in direct conjunction with the rotational drive of the electric blower in the mite extermination operation state, it has the effect of being able to clearly notify that the mite extermination operation is in progress.

[Brief explanation of the drawing]

The drawings all relate to embodiments of the vacuum cleaner according to the present invention,
FIG. 1 is an electric circuit diagram, FIG. 2 is a longitudinal sectional view, FIG. 3 is a plan view, and FIG. 4 is a plan view of the main parts with the display panel board removed. (3)...Dust collection room, (7)...Electric blower, (15
)...Shutter plate, (22)...Bimetal type thermoswitch (temperature detection switch), (23)...Shutter switch, (26)...Mite extermination operation display/
Light emitting diode (mite extermination operation indicator lamp), (37
)...Control circuit section (control circuit).

Claims (1)

[Claims] (1) It has a dust collection chamber equipped with a suction port that can be opened and closed by a shutter plate, and an electric blower, and harmful microorganisms such as mites captured in the dust collection chamber during cleaning operation are removed by the exhaust flow of the electric blower. In the vacuum cleaner, the shutter plate is arranged between the control signal input section of the control circuit that controls the rotation of the electric blower, and the shutter plate is connected to the suction port. A shutter switch that is turned on when the dust collection chamber is closed, a temperature detection switch that is turned off when the heating temperature in the dust collection chamber reaches a predetermined temperature, and a tick extermination operation indicator lamp are connected in series. Vacuum cleaner.