JPH09327425A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To display mite information and mite extermination information according to indoor environmental conditions in which mite reproduction is activated, and dust information and dust removal information in an air flow passing through a suction air passage. Thus, it is possible to obtain an electric vacuum cleaner capable of efficiently sucking and collecting microorganisms such as dust and mites into the cleaner body. SOLUTION: A mite indicator 52a and a mite indicating an environmental condition in which tick reproduction is activated on all or at least one of a vacuum cleaner body, a suction hose, an extension tube, and a floor suction tool 10 of an electric vacuum cleaner. A mite extermination indicator 52b that indicates that the dust has been eliminated, a dust indicator 53a that indicates the status of dust in the suction air passage, and a dust removal indicator 53b that indicates that the dust has been removed are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner, and more particularly, to an electric vacuum cleaner which displays an environmental state in which mite breeding is activated and a state of sucked dust. It is.

[0002]

2. Description of the Related Art In recent years, health diseases caused by mites have been called out, and in particular, social problems have developed with the increase in atopic patients. In such a situation, the ticks sucked by the vacuum cleaner are exterminated with hot air, or, for example, as described in Japanese Patent Publication No. 2-264622, the indoor environmental condition in which the reproduction of ticks is activated, that is, When the temperature becomes 20 to 30 ° C. and the humidity becomes 60 to 80%, the mite information is displayed to alert the user to perform careful cleaning.

Further, in order to inform the user of the cleaning condition of the floor surface and to perform efficient cleaning, for example, Japanese Patent Publication No. 5-48688 discloses a suction device for a floor suction device of a vacuum cleaner. A dust sensor is provided in the air passage, and if dust is contained in the suction air, the dust sensor detects this and displays it with a display lamp, etc., so that the user can clean the display lamp etc. until it goes off. Announcing the continuation of Thereby, the cleaning efficiency of the floor surface is improved.

[0004] Further, even in the case of a floor suction tool or the like which is an accessory that is used away from the cleaner body, the power from the cleaner body is not required and the electric parts can be driven independently. As disclosed in JP-A-98846, a dust sensor as an electrical component is driven by mounting a generator on a floor suction tool or the like to detect the presence or absence of passing dust. This allows
Wiring for power supply from the main body of the vacuum cleaner is not required, and the poor connection and the assembling work associated with the electrical connection are improved.

[0005]

In the above-mentioned conventional vacuum cleaner, the invention described in Japanese Patent Application Laid-Open No. 2-264622 only displays the indoor environmental condition. It was unclear whether cleaning should be done carefully. In addition, the invention described in Japanese Patent Publication No. 5-48688 only displays the presence or absence of dust sucked from the floor surface, and does not take into account the display associated with the indoor environmental condition or the adjustment of the suction force. For example, dust when it is dry is relatively light, so it is easy to suck it.On the contrary, when the humidity is high, dust is relatively heavy and it is difficult to suck it, and it is easy to breed under special environmental conditions. It is difficult to understand any measures against suction of microorganisms such as mites and molds.
The response was unclear.

Further, in the invention described in Japanese Patent Application Laid-Open No. 6-98846, a dust sensor is driven by supplying power from a generator mounted on a floor suction tool.
The display of the indoor environmental condition is not taken into account, and the generator is not actively used.

The present invention has been made to solve the above-mentioned problems, and includes mite information and mite extermination information according to the environmental conditions in the room where tick reproduction is activated, and the air flow passing through the suction air passage. By displaying the dust information and the dust removal information of (1), it is an object of the present invention to obtain an electric vacuum cleaner capable of efficiently sucking and collecting microorganisms such as dust and mites in the cleaner body.

[0008]

[Means for Solving the Problems]

(1) An electric vacuum cleaner according to the present invention includes a cleaner main body having an electric blower, a dust bag, and the like, and a floor suction tool connected to the cleaner main body through a suction hose or an extension pipe. It is equipped with, and all or at least one of the vacuum cleaner body, suction hose, extension pipe, and floor suction tool indicates the mite indicator that indicates the environmental condition in which the reproduction of mites is activated and that the mites have been exterminated. A mite extermination indicator, a dust indicator that indicates the status of dust in the suction air passage, and a dust removal indicator that indicates that dust has been removed are provided.

(2) In the vacuum cleaner of (1),
The display time of the dust display was extended in synchronization with the display of the tick display.

(3) In the vacuum cleaner of (1) above,
A dust sensor is provided in the suction air passage, and the dust detection accuracy of the dust sensor is improved by linking with the display of the tick display.

(4) In the electric vacuum cleaner of the above (1), (2) or (3), the suction force of the electric blower is strengthened in association with the display of the tick indicator.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. FIG. 1 is an explanatory view showing the overall configuration of a vacuum cleaner according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of the floor suction tool of FIG. 1, and FIG. 3 is a bottom view of FIG. In FIG. 1, F is a floor surface made of a board floor, a carpet floor, etc., 1 is a cleaner body placed on the floor surface F, has an intake port and an exhaust port, and has an electric blower 2, a dust bag 3, and the like. Built-in. Reference numeral 4 denotes a flexible suction hose having a connecting portion 5 connected to the suction port of the cleaner body 1 at one end, and a grip portion 6 provided with a hand switch 7 at the other end. 8 is a gripper 6 at one end
, And the other end is an extension tube whose length is adjustable and which is connected to a floor suction tool 10 described later.

Reference numeral 10 denotes a floor suction tool connected to the extension pipe 8 or the gripping portion 6 and connected to the cleaner body 1, and details thereof are shown in FIGS. In both figures, 11 is a case, and 12 is a bumper provided on the outer periphery of the case 11. Although not shown in the drawing, the case 11 is formed so that the upper and lower parts are separable, and the upper front surface is detachable.
On the front side of the case 11, there is provided a brush housing 13 which opens downward.
Inside, bearings 14 a, 14 whose both ends are provided in case 11 are provided.
The rotary brush 15 rotatably supported by b. Reference numeral 16 denotes brush bristles implanted on the outer periphery of the rotary brush 15. Reference numeral 17 denotes a suction port provided on the rear side of the brush accommodating portion 13, and reference numerals 18a, 18b, and 18c denote cases 1
1 are a plurality of air holes provided on the upper surface. The air holes 18a to 18c may be provided on the side wall of the case 11,
Alternatively, it may be provided from the upper surface to the side wall.

Reference numeral 20 denotes an elbow attached to a rear portion of the case 11, as shown in FIG. 4, a cylindrical portion 22 having an opening 23 in a longitudinal direction and hollow shafts 24a and 24b protruding at both ends. A connecting portion 25 formed of a double wall integrally formed with the cylindrical portion 22 and a connecting portion 26 having an inner wall extending from the connecting portion 25. The connecting portion 26 side of the outer wall of the connecting portion 25 is large. A chamber 27 is formed between the inner wall and the inner wall. The chamber 27 may be formed by a hollow protrusion protruding from the outer wall of the connecting portion 25.

In the chamber 27, a light-emitting portion 31 and a light-receiving portion 32 each having a distal end exposed from the inner wall are mounted facing each other.
These constitute the dust sensor 30. And
The lead wires of the light emitting portion 31 and the light receiving portion 32 pass between the inner wall and the outer wall of the connecting portion 25 and are led into the case 11 from an outlet 28 provided on the outer wall of the connecting portion 25. In this elbow 20, a cylindrical portion 22 is housed in the case 11, and hollow shafts 24a, 24b are provided in the case 11 for bearings 14c,
14d is rotatably supported by the connecting portion 25.
And the connecting portion 26 is the large opening 11 provided in the case 11.
It projects outside from a. And the above-mentioned suction port 17
The suction air passage 21 is formed by the cylindrical portion 22, the connecting portion 25, and the connecting portion 26.

Reference numeral 35 denotes a turbine (impeller), which is disposed in the cylindrical portion 22 of the elbow 20 forming the suction air passage 21 so as to face the suction port 17 and has an output shaft 36 connected to the elbow 20.
Hollow shaft 24b, bearings 14d, 14 provided in the case 11
e rotatably supported. 37 is a small-diameter pulley fixed to the output shaft 36, 38 is a large-diameter pulley fixed to the shaft of the rotary brush 15, and a belt 39 is hung between the pulleys 37 and 38.

In the floor suction device 10 as described above, when the electric blower 2 of the cleaner body 1 is driven, the outside air containing dust and the like is sucked from the opening of the brush accommodating portion 13 of the case 11, and the suction air is sucked. The dust is collected in the dust bag 3 through the passage 21. At this time, the turbine 35
Is driven to rotate. The rotation of the turbine 35 is controlled by the output shaft 3
6, transmitted to the pulley 38 via the pulley 37 and the belt 39, decelerated and transmitted to the rotary brush 15, and drives the rotary brush 15 to rotate.

On the other hand, light is continuously or intermittently projected from the light emitting portion 31 of the dust sensor 30 toward the light receiving portion 32, and passes through the suction air passage 21 by the amount of light received by the light receiving portion 32. The amount or presence or absence of dust and the like included in the airflow, or the amount of dust per unit time is detected.

Reference numeral 41 denotes a power generator, which comprises a generator 42 and a turbine (impeller) 43 attached to its rotor shaft, as shown in FIG.
2 is accommodated in a cylindrical cover 44 mounted between the holding rib 19 holding the bearing 2 and the bearing 14c. 45 is provided at the end of the cover 44, and the hollow bearing 2 of the elbow 20 is provided.
Openings communicating with 4a, 46a and 46b are ventilation holes provided in the cover 44.

47 is a brush accommodating portion 13 of the case 11,
The temperature / humidity sensor is provided between the cover 44 and the cover 44 to detect tick information. Note that the temperature / humidity sensor 47 may obtain the single mite information by using only one of the temperature sensor and the humidity sensor. 48a, 48b
Reference numeral (hereinafter sometimes simply referred to as 48) is a printed circuit board on which electronic parts and the like are mounted and a DC power supply circuit, a control circuit, etc. are formed, and air holes 18a to 18c provided in the case 11 are provided.
It is installed near. In addition, this printed circuit board 48
The a and 48b may be combined into one sheet, or may be divided into three or more sheets.

Reference numeral 51 (FIG. 2) is a display portion provided on the case 11 above the power generation device 41. For example, as shown in FIG. 6, a tick display for displaying an environmental condition in the room where tick reproduction is activated. The device 52a, a mite extermination indicator 52b that indicates that the ticks have been extinguished, a dust indicator 53a that indicates the presence of dust that passes through the suction air passage 21, and a dust that passes through the suction air passage 21. And a dust removal indicator 53b for indicating that it is gone. In addition, each of these indicators 52a, 52b, 53a, 53b
Instead of the example of FIG. 6, other means such as using a lamp of a different color may be used.

When the electric blower 2 is driven and the pressure in the suction air passage 21 becomes negative, the outside air is sucked from the air holes 18 a to 18 c and flows into the case 11. The outside air passes around the temperature / humidity sensor 47, the temperature and humidity inside the room are detected, flows into the cover 44 through the ventilation holes 46a and 46b, rotates the turbine 43, and is sucked into the suction air passage 21 from the hollow bearing 24a. To be done. The rotation of the turbine 43 causes the generator 42 to rotate to generate electric power, and the AC output thereof is converted into DC and the printed circuit boards 48 a, 4
8b, dust sensor 30, temperature and humidity sensor 47, and display unit 5
1 is supplied as driving power.

Next, the operation of the present embodiment configured as described above will be described. 7, when the electric blower 2 of the cleaner body 1 is driven, air including dust and the like is sucked from the floor suction tool 10 and the power brush 15 is
The turbine 43 of the power generation device 41 is driven by the airflow sucked from the air holes 18a to 18c, and the rotation of the rotor causes the power generator 43 to output AC power. This AC output is converted into DC by the DC power supply circuit 64, and is supplied to the printed circuit board 48, the temperature / humidity sensor 47, the dust sensor 30, the display unit 51, and the like.

On the other hand, the room temperature and the room humidity, which flow through the air holes 18a to 18c and are detected by the temperature / humidity sensor 47, are compared with a set temperature (for example, 20 ° C.) by the temperature comparison circuit 66, and the humidity comparison circuit is also compared. Set humidity at 67 (eg 6
0%). In addition, the dust sensor 30 detects the amount of dust and the like contained in the airflow passing through the suction air passage 21,
Alternatively, the amount of dust or the like per unit time is detected, and the detection signal is applied to the dust detection circuit 69.

First, when the room temperature and humidity detected by the temperature / humidity sensor 47 are lower than the set temperature and set humidity, there is no tick information and no signal is output from the temperature / humidity comparison circuit 65. On the other hand, the dust detection circuit 69 which receives the detection signal from the dust sensor 30 outputs the output signal to the broken line 6
1, the display driving means 71 drives (turns on) the dust display 53a based on this signal, but the dust removal display 53b does not ignite.
Neither the tick indicator 52a nor the tick extermination indicator 52b is lit, indicating that it is not a mite breeding environment. When the detection signal of the dust sensor 30 becomes zero, the result is sent to the display driving means 71, the dust display 53a is turned off, and the dust removal display 53b is turned on, thereby completing the cleaning.

Next, when both or one of the room temperature and the room humidity is higher than the set value, the temperature and humidity comparison circuit 65
Sends a signal to the dust sensor sensitivity setting means 68 to change the sensitivity of the dust detection circuit 69 to a sensitivity corresponding thereto (for example, if dust or the like up to 1 μm was detected up to 0.5 μm). Detect dust etc.).
Then, the dust detection circuit 69 sends a signal indicating that the sensitivity has been changed to the display time setting means 70, and changes the lighting time so that the dust indicator 53a can be turned on for a time corresponding to the sensitivity change. In other words, the lighting time of the dust indicator 53a is extended so that the dust can be carefully cleaned over time. The output signal of the display time setting means 70 is the display driving means 71.
And the tick indicator 52a is turned on and the dust indicator 53a is turned on for the changed time. After a lapse of a predetermined time, the tick display device 52a and the dust display device 53a are turned off, and the tick removal display device 52b and the dust removal display device 53 are displayed.
Since b is lit, the cleaning is finished by looking at this.

As described above, in the present embodiment, in the season (environmental conditions) in which mites do not propagate, when the electric blower 2 of the cleaner body 1 is driven to start suction, the dust indicator 53a lights up and suction is performed. When there is no dust in the air flow, the light is turned off and the dust removal indicator 53b is turned on. Therefore, if cleaning is performed during this period, the floor surface and the like can be cleaned cleanly and mites can be collected. In this case, since the temperature / humidity sensor 47 is provided at the position closest to the floor surface F, the tick information can be accurately detected.

Further, in an environment in which mites breed, the temperature and humidity sensor 47 detects the temperature and / or humidity in the room by the operation of the blower motor 2, and when the temperature exceeds the set value, the sensitivity of the dust sensor 30 changes. At the same time, the lighting time of the dust display 53a is extended and both the tick display 52a and the dust display 53a are turned on. As a result, the dust indicator 53a and the mite indicator 52a are turned off, and the dust removal indicator 53b and the mite extermination indicator 52b are lit up to suck even fine dust and the like by performing careful cleaning. The mites can be reliably sucked.

In the mite breeding environment, when the mite information is obtained, only the sensitivity of the dust sensor 30 is adjusted to turn on the mite indicator 52a and the dust indicator 53a, and when the dust disappears. These may be turned off to turn on the tick removal indicator 52b and the dust removal indicator 53b (broken line 61 in FIG. 7), or the sensitivity adjustment of the dust sensor 30 and the change of the lighting time of the dust indicator 53a. Alternatively, the mite indicator 52a and the dust indicator 53a may be turned on, and when the dust is gone, they may be turned off and the tick extermination indicator 52b and the dust removal indicator 53b may be turned on (FIG. 7). 62).

The ticks collected in the dust collecting bag 3 as described above are connected, for example, by connecting the gripping portion 6 side of the suction hose 4 to the exhaust port of the cleaner body 1 and circulating the heated air. When the electric blower 2 is driven by forming the air blower, mite mixed in dust or the like in the dust bag 3 can be killed.

Embodiment 2 FIG. 8 is an explanatory view of the operation of Embodiment 2 of the present invention. In the present embodiment, the power generator 41 of the first embodiment is omitted, the drive power source 9 of the cleaner body 1 is guided to the floor suction tool 10 by the power supply wiring, and this is converted into direct current by the direct current power supply circuit 64. The printed circuit board 48, the temperature / humidity sensor 47, the dust sensor 30, and the display unit 51 are supplied as drive power. The operation and effect of the present embodiment configured as described above are almost the same as those of the first embodiment.

Embodiment 3. In the present embodiment, when the tick information is obtained, in addition to any of the various operations described above, the output signal of the temperature / humidity comparison circuit 65 is output as indicated by a broken line 63 in FIGS. This is controlled in addition to 2 to enhance the suction force. According to the present embodiment, fine dust and the like can be sucked reliably and in a short time by a stronger suction force, and the mites mixed therein can be collected.

In the first embodiment, the temperature / humidity sensor 47 is used.
Although the above description shows the case where it is arranged between the power generator 41 and the brush accommodating portion 13, it may be arranged at another place as long as it is in the inflow passage of the external air. However, since the air that has passed through the power generation device 41 is heated, it is not possible to accurately measure the room temperature and humidity, so it is necessary to install it on the upstream side of the power generation device 41, and to set the environmental conditions near the floor surface. In order to detect, it is desirable to provide the position as close to the floor surface F as possible.

In each of the embodiments, the case where the present invention is applied to the floor suction tool 10 shown in FIGS. 2 and 3 is shown. For example, the turbine 35 is omitted and the case 11 is used.
The motor is attached to the power brush 15
May be driven, or the brush driving means may be omitted. Further, the case where the dust sensor 30 is provided in the connecting portion 25 of the elbow 20 has been described, but the dust sensor 30 may be provided in another place as long as it is in the suction air passage 21.

Further, the mite indicator 52a and the mite extermination indicator 52b, the dust indicator 53a and the dust removal indicator 53.
Although the case where the display section 51 composed of b is provided on the upper surface of the floor suction tool 10 is shown, the display section 51 is further provided for the cleaner main body 1, the grip section 6 of the suction hose 4, and the extension tube 8. It may be provided in all or at least a part thereof. Further, in each of the above-described embodiments, the case where the present invention is applied to the illustrated vacuum cleaner is shown, but, for example, an integrated type in which the floor suction tool and the cleaner body are integrated via a connecting portion, The present invention can be applied to other types of vacuum cleaners such as a handy type or a pot type.

[0036]

As is apparent from the above description, the following effects can be obtained according to the vacuum cleaner of the present invention. (1) a vacuum cleaner body containing a built-in electric blower, dust bag, and the like;
A floor suction tool connected to the cleaner body via a suction hose or an extension tube is provided, and all or at least one of the vacuum cleaner body, the suction hose, the extension tube, and the floor suction tool is provided with a tick. The tick indicator that indicates the environmental conditions in which the breeding of the bird has become active and the tick extermination indicator that indicates that the tick has been extinguished, and the dust indicator that indicates the status of dust in the suction air passage and the dust have been removed. Since a dust removal indicator that displays that is provided, it is possible to easily know the breeding state of mites, and based on this, there is no dust mixed with mites, etc.,
By performing cleaning until the mite extermination indicator and the dust removal indicator are lit, it is possible to eliminate the mites. In addition, since cleaning only needs to be performed for a necessary time, unnecessary labor and power consumption can be reduced, and an easy-to-use vacuum cleaner can be obtained.

(2) In the vacuum cleaner of (1) above,
Since the display time of the dust indicator is increased in association with the display of the tick indicator, it is possible to surely remove the tick.

(3) In the vacuum cleaner of (1) above,
Since the dust sensor is provided in the suction air passage and the dust detection accuracy of the dust sensor is improved in association with the display of the tick display, it is possible to suck finer dust and the like.
As a result, the mites can be reliably eliminated.

(4) In the electric vacuum cleaner of the above (1), (2) or (3), the suction force of the electric blower is strengthened in association with the display of the tick indicator, so that the above (1) In addition to the effects of (3) to (3), it is possible to reliably suck fine dust and the like containing mites.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of a first embodiment according to the present invention.

FIG. 2 is a perspective view of the floor suction tool of FIG.

FIG. 3 is a bottom view of FIG.

FIG. 4 is a perspective view of the elbow shown in FIG. 2;

FIG. 5 is a detailed view of the power generator of FIG.

FIG. 6 is an explanatory diagram illustrating an example of a display unit in FIG. 2;

FIG. 7 is an operation explanatory view of the first embodiment.

FIG. 8 is an explanatory diagram of the operation of the second embodiment.

[Explanation of symbols]

1 cleaner body, 2 electric blower, 4 suction hose,
8 Extension tube, 10 Floor suction tool, 11 Case, 13
Brush housing, 15 power brushes, 18a-18c
Air vent, 20 Elbow, 30 Dust sensor, 41 Power generator, 47 Temperature / humidity sensor, 51 Display, 52 Tick indicator, 53 Dust indicator.

Claims (4)

[Claims] 1. A cleaner main body comprising an electric blower, a dust bag, etc., and a floor suction tool connected to the cleaner main body via a suction hose or an extension pipe. All or at least one of the suction hose, extension pipe, and floor suction tool, and a mite indicator that indicates the environmental condition in which tick reproduction is activated and a mite extermination indicator that indicates that the tick has been exterminated. An electric vacuum cleaner comprising: a dust indicator for displaying the status of dust in the suction air passage and a dust removal indicator for indicating that dust has been removed. 2. The electric vacuum cleaner according to claim 1, wherein the display time of the dust indicator is lengthened in association with the indication of the tick indicator. 3. The vacuum cleaner according to claim 1, wherein a dust sensor is provided in the suction air passage, and the dust detection accuracy of the dust sensor is improved in association with the display of the tick display. 4. The electric vacuum cleaner according to claim 1, wherein the suction force of the electric blower is strengthened in association with the display of the tick indicator.