JP2017131266A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of accurately detecting mite on a surface to be cleaned.SOLUTION: A vacuum cleaner comprises: a vacuum cleaner body 1 comprising a duct collection chamber (not shown) incorporating a motor blower 2 therein and collecting dusts; motor fan drive means 27 for driving the motor blower 2; first dust detection means 20 for reacting to dusts of a prescribed size; second dust detection means 21 capable of reacting to dusts which are smaller than a prescribed size; and a humidity sensor 15 for detecting humidity in the vicinity of a surface to be cleaned and arranged on a path where suction air passes. The vacuum cleaner is configured to estimate that sucked dust is mite, based on output results of the first and second dust detection means 20, 21 and the humidity sensor 15, the humidity sensor 15 can accurately detect humidity in which a moisture included in the vicinity of the surface to be cleaned or on the surface to be cleaned, is considered, and can detect size of the sucked dust, so that, it is possible to estimate accurately whether or not the sucked dust is mite, based on both of the information, so that the vacuum cleaner can provide accurate information to a user.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vacuum cleaner.

  In recent years, the number of people who develop hay fever has increased due to the effects of pollen, etc., and it has become an environment in which mites that cause allergies do not dry out in the sun, making it easier to propagate in futons. It has become desirable to remove

  In a conventional vacuum cleaner, mites sucked by the vacuum cleaner are killed with hot air, or the indoor temperature and humidity at which tick breeding is activated are detected (for example, temperature 20-30 ° C., humidity 60-80%). Etc.), a vacuum cleaner has been proposed that informs the user of the information and urges the user to pay attention so that the user carefully performs the cleaning work (see, for example, Patent Document 1).

  In addition, indoor environment information that activates tick reproduction and a dust sensor formed by receiving and emitting infrared LEDs in the suction air passage, and the detection information of dust passing through the suction air passage are displayed. Thus, an electric vacuum cleaner that efficiently collects ticks has also been proposed (see, for example, Patent Document 2).

JP-A-2-264622 JP-A-9-327425

  However, the conventional vacuum cleaner described in Patent Document 1 described above is a method of notifying the user whether or not ticks are likely to be generated in the indoor environment information. For example, in the rainy season or in the summer when the humidity is high If it is, it will be judged that it is an environment where ticks are likely to occur almost every day, and even if ticks do not really exist, it will prompt the user to clean them carefully.

  Conversely, in winter, if it is dry and the humidity is low, the user will be informed that there are few days in which the mite is likely to occur. For example, a place with high humidity such as a futon should be cleaned. Even then, there will be no ticks. In particular, a futon or the like is not an indoor environment, and if it is easily affected by whether or not ticks are present due to the humidity of the surface to be cleaned, it gives the user inaccurate information.

  Moreover, in the vacuum cleaner of the above-mentioned patent document 2, the sucked dust is detected, and information on ticks is provided to the user by the information and the indoor environment information. Although the accuracy of information regarding ticks is higher than that of the electric vacuum cleaner described in Patent Document 1 described above, for example, even in the case where large garbage such as hair adhering to the futon is sucked, the environment is high in humidity. If it is below, the user will be informed that a tick is present, and there has been a problem of giving the user inaccurate information.

  The present invention has been made in view of the above-described problems of the prior art, and provides an easy-to-use vacuum cleaner that can accurately detect ticks existing in a futon and can efficiently clean a surface to be cleaned. For the purpose.

  In order to solve the above-described problems of the prior art, an electric vacuum cleaner according to the present invention has a built-in electric blower that generates suction air and a dust collecting chamber that collects dust, and drives the electric blower. Electric blower driving means, first dust detection means that reacts to dust of a predetermined size, second dust detection means that can react to dust smaller than the predetermined size, and suction air Humidity detection means is provided for detecting the humidity in the vicinity of the surface to be cleaned, which is disposed in the passage route, and it is estimated from the output results of the first and second dust detection means and the humidity detection means that the sucked dust is a tick. Since the humidity detecting means is arranged in the path through which the suction air passes, it is possible to accurately detect the humidity in the vicinity of the surface to be cleaned or the moisture contained in the surface to be cleaned. Detect size Kill Therefore, dust sucked based on the information of both can whether the estimated mite. This increases the accuracy of tick detection and can provide highly accurate information to the user.

  According to the electric vacuum cleaner of the present invention, it is possible to accurately detect the humidity in the vicinity of the surface to be cleaned or the moisture contained in the surface to be cleaned, and to detect the size of the sucked dust. Since it is possible to estimate whether the dust sucked in based on both information is a tick, the accuracy of tick detection is improved, high-precision information can be provided to the user, and the surface to be cleaned can be efficiently cleaned. An easy-to-use vacuum cleaner can be provided.

The perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Cross section of suction tool of the vacuum cleaner Control block diagram of the vacuum cleaner Sectional view of the dust detector of the vacuum cleaner The same vacuum cleaner WHEREIN: The graph which shows the relationship between the output of the 1st amplification determination means and the 2nd amplification determination means in the case of large dust The same vacuum cleaner WHEREIN: The graph which shows the relationship between the output of the 1st amplification determination means and the 2nd amplification determination means in the case of small dust The figure which shows the combination pattern of the detected amount of dust at the time of cleaning the futon which is a surface to be cleaned, and the output of a humidity sensor in the vacuum cleaner Control block diagram of the electric vacuum cleaner in Embodiment 2 of the present invention The figure which shows the combination pattern of the detected amount of dust at the time of cleaning the futon which is a surface to be cleaned, and the output of a humidity sensor in the vacuum cleaner

  According to a first aspect of the present invention, there is provided a vacuum cleaner body having a built-in electric blower for generating suction air and having a dust collecting chamber for collecting dust, an electric blower driving means for driving the electric blower, and dust having a predetermined size. A first dust detector that reacts to the second dust detector, a second dust detector that can react to dust that is smaller than the predetermined size, and a humidity in the vicinity of the surface to be cleaned that is arranged in a path through which suction air passes. And a humidity detecting means for detecting, wherein the dust sucked from the output results of the first and second dust detecting means and the humidity detecting means is estimated to be mites, and the humidity detecting means is provided in a path through which the suction air passes. Because it is arranged, it is possible to accurately detect the humidity near the surface to be cleaned or the moisture content of the surface to be cleaned, and the size of the sucked dust can also be detected, so suction based on both information Dust is mite It is whether the estimation there. This increases the accuracy of tick detection and can provide highly accurate information to the user.

The second invention particularly includes a humidity difference comparison means for comparing the output of the humidity detection means before operating the electric vacuum cleaner of the first invention with the output of the humidity detection means during operation, and the humidity difference comparison If the output of the means is greater than or equal to a predetermined value, it is assumed that the sucked dust is mites. Before starting the operation of the vacuum cleaner, it is possible to detect atmospheric humidity, and during operation, for example, it is sun-dried When cleaning surfaces with high humidity such as no futon, even if the humidity of the surface to be cleaned cannot be accurately detected, it can be detected whether the humidity is relatively high compared to the atmosphere, so the absolute humidity of the room Even if it changes, the humidity of the surface to be cleaned can be accurately detected, and that information can be added to the tick estimation. Therefore, the accuracy of tick detection is increased, and highly accurate information can be provided to the user.

  According to a third aspect of the invention, in particular, the electric vacuum cleaner according to the first or second aspect of the invention includes a suction tool having a suction port for sucking dust on the surface to be cleaned, and a humidity detecting means is provided in the vicinity of the suction port. Thus, it becomes easier to detect the humidity of the surface to be cleaned during cleaning, and the humidity during actual dust suction can be detected. Therefore, the accuracy of detecting ticks is increased, and highly accurate information can be provided to the user.

  In the fourth invention, in particular, the vacuum cleaner according to any one of the first to third inventions informs the user that the sucked dust is a tick when the sucked dust is estimated to be a tick. Since it is provided with a notification means and can reliably notify the tick detection information to the user's vision and hearing, a user-friendly vacuum cleaner can be provided.

  In the fifth aspect of the invention, in particular, in the electric vacuum cleaner according to any one of the first to fourth aspects of the invention, when the sucked dust is estimated to be mites, the electric blower driving means increases the energization amount to the electric blower. However, if it is estimated that the dust that has been sucked in is a tick, the suction power is increased by increasing the amount of current supplied to the electric blower, and the tick can be sucked more securely. In this way, it is possible to expect an effect that the mite collides with the intake passage and is killed, and an easy-to-use vacuum cleaner can be provided.

  According to a sixth aspect of the invention, in particular, the suction tool according to any one of the third to fifth aspects includes a rotating brush that sweeps up dust and an electric motor that drives the rotating brush, and the sucked dust is estimated to be mites. If it is estimated that the rotation speed of the electric motor is increased and the sucked dust is estimated to be mites, the rotation speed of the rotating brush can be increased, and the mites on the surface to be cleaned can be scraped more. Therefore, it is possible to provide an easy-to-use electric vacuum cleaner that can suck mites on the surface to be cleaned more reliably.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The vacuum cleaner in Embodiment 1 of this invention is demonstrated using FIGS. FIG. 1 is a perspective view of the electric vacuum cleaner in the present embodiment, FIG. 2 is a cross-sectional view of a suction tool of the electric vacuum cleaner, FIG. 3 is a control block diagram of the electric vacuum cleaner, and FIG. FIG. 5 is a cross-sectional view of the dust detection unit of the vacuum cleaner, FIG. 5 is a graph showing the relationship between the outputs of the first amplification determination means and the second amplification determination means in the case of large dust in the electric vacuum cleaner, and FIG. FIG. 7 is a graph showing the relationship between the outputs of the first amplification determination means and the second amplification determination means in the case of small dust in the vacuum cleaner, and FIG. 7 shows the dust when the futon, which is the surface to be cleaned, is cleaned in the same vacuum cleaner. It is a figure which shows the combination pattern of the detection amount of this, and the output of a humidity sensor.

  In FIG. 1, the vacuum cleaner 40 in this Embodiment operates the operation mode by the vacuum cleaner main body 1 incorporating the electric blower 2 which generate | occur | produces suction | inhalation wind, and the different input (supply electric power) of the electric blower 2. A hose 3 having an operation unit 4, an extension pipe 5, a suction tool 8 that touches the surface to be cleaned and sucks dust and the like, and a dust collection chamber 6 that accumulates the sucked dust are provided. The chamber 6 is connected via an intake port 7 provided in the cleaner body 1, and an intake passage is formed by the dust collection chamber 6, the intake port 7, the hose 3, the extension pipe 5, and the suction tool 8.

  The suction tool 8 includes a rotary brush 9 that scrapes dust on the floor surface and an electric motor 10 for rotationally driving the rotary brush 9 so as to face the floor surface. At the end of the hose 3 on the cleaner body 1 side, a dust detection unit 11 for detecting dust contained in the sucked air is provided. A hand grip 12 that is gripped when performing a cleaning operation is provided, and the hand grip 12 is operated by a user to start or stop power supply to the electric blower 2 or to the electric blower 2. The operation unit 4 for selecting the energization amount, dust detection notifying means 13 for notifying the user that dust has been detected, and when it is estimated that the sucked dust is mite, the information is sent to the user. Tick estimation notification means 14 for notification is arranged.

  As shown in FIG. 2, a humidity sensor 15 is disposed as a humidity detecting means in the vicinity of the suction port 18 of the suction tool 8 through which the suction air passes, and the humidity in the vicinity of the surface to be cleaned or the moisture included in the surface to be cleaned is accurately measured. It is configured to detect well.

  In this embodiment, the humidity sensor 15 is arranged in the suction tool 8 through which the suction air passes. It is possible to detect the moisture contained in the surface, and in particular, if it is arranged in the vicinity of the dust detection unit 11, an advantage that the signal transmission wiring of the humidity sensor 15 can be easily performed can be expected.

  In FIG. 3, the dust detection unit 11 includes a first dust detection unit 20 and a second dust detection unit 21, and the first dust detection unit 20 receives signals from the dust detection unit 22 and the dust detection unit 22. The second dust detection means 21 amplifies the signal from the dust detection unit 22 (shared with that of the first dust detection unit 20) and the dust detection unit 22 and the first amplification. The second amplification determination unit 21a has an amplification factor larger than that of the determination unit 20a.

  The dust detection unit 22 includes a light emitting unit 16 that includes an infrared light emitting diode that emits light and a light receiving unit 17 that includes a phototransistor and the like and receives light from the light emitting unit 16.

  The vacuum cleaner main body 1 further includes an electric blower drive means 27 for driving the electric blower 2, an electric motor drive means 28 for driving the electric motor 10, and a control judgment means 29 for detecting the amount of dust in the sucked air. And a dust amount measuring means 25 for sending a signal.

  The dust amount measuring means 25 includes a first dust counting means 23 for receiving a signal from the first amplification determining means 20a having an amplification function and a filter function constituted by an operational amplifier, a comparator, etc., and counting the number of dusts. A second dust counting means 24 for counting the number of dust in response to a signal from the second amplification determining means 21a having the same function as the first amplification determining means 20a.

  The control determination unit 29 receives information from the dust amount measurement unit 25, information from the humidity sensor 15 disposed in the suction tool 8, and information from the operation unit 4 operated by the user as signals, and drives the electric blower. The unit 27, the motor driving unit 28, the dust detection notification unit 13, and the tick estimation notification unit 14 are controlled to send control signals.

  About the vacuum cleaner in this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

First, the cleaner body 1 is connected to a commercial power source (not shown), and the user instructs the operation by the operation unit 4. An operation signal is sent from the operation unit 4 to the control determination unit 29, and the control determination unit 29 is operated with electric power of a predetermined initial value (for example, 500 W) according to the operated content. , And a drive signal is sent to the motor drive means 28. The electric blower drive means 27 and the electric motor drive means 28 energize the electric blower 2 and the electric motor 10, respectively, according to the transmitted signals, the electric blower 2 and the electric motor 10 start to rotate, and suction force is generated. The user starts the cleaning operation of the surface to be cleaned (here, mainly a futon with a lot of mites).

  At this time, the humidity sensor 15 detects moisture or the like including the surface of the futon that is the surface to be cleaned or the sweat of the futon user by the suction force, and the control determination unit 29 receives the output signal of the humidity sensor 15.

  On the other hand, the sucked dust is collected by the suction force in the dust collection chamber 6 in the cleaner body 1 through the hose 3. During this time, as shown in FIG. 4, the dust passes through the suction path of the dust detector 11. That is, the amount of received light changes when dust passes between the light emitting unit 16 and the light receiving unit 17, and the amount of change depends on the size of the dust. In other words, a change in the amount of light received by the dust detection unit 22 is sent to the first dust detection means 20 and the second dust detection means 21. First, the signal received by the first dust detection means 20 is subjected to the first amplification determination. Amplification is performed by means 20a, and if this result exceeds a predetermined threshold value, it is output as a first dust detection signal.

  Further, regardless of the output result of the first dust detection means 20, the second dust detection means 21 amplifies the received signal by the second amplification determination means 21a, and if it exceeds a predetermined threshold, the second dust Output as a detection signal. At this time, the amplification factor of the second amplification determination unit 21a is set to be larger than the amplification factor of the first amplification determination unit 20a, so that in the case of relatively large dust, the first amplification determination unit 20a also reacts. Both the first dust detection signal and the second dust detection signal are output.

  In the case of small dust, the first amplification determination unit 20a does not reach the determination level, and it can be determined that only the second amplification determination unit 21a has reacted, and only the second dust detection signal is detected and output.

  As described above, by classifying the dust size determination based on the difference in amplification factor, the dust (for example, the diameter) in which the passing speeds at the light receiving and light emitting units 17 and 16 are equal and a sufficient difference in pulse width cannot be obtained. Are 0.1 mm dust and 0.03 mm dust), they can be distinguished as signals.

  Here, when the dust sucked by this suction force is relatively large dust, when the dust passes between the light emitting portion 16 and the light receiving portion 17 of the dust detecting portion 22, the first and second dust detecting means 20 are used. , 21 output signals as shown in FIG.

  The solid line in the figure indicates the output obtained by amplifying the signal received by the first dust detection means 20 by the first amplification determination means 20a, and the dotted line indicates the signal received by the second dust detection means 21 by the second amplification determination means 21a. This shows the output amplified by. In this case, since both the first dust detection means 20 and the second dust detection means 21 exceed a predetermined threshold value for detecting dust, whichever of the first and second dust detection means 20 and 21 is used. Can also detect dust.

  In this case, since it is considered that large dust has passed, the amount of large dust is counted by the first dust counting means 23. Next, when the sucked dust is small dust such as pollen or mites, the output of the second dust detection means 21 can be detected as shown in FIG. 6, but the output of the first dust detection means 20 has a threshold value. Since it does not exceed, it cannot be detected by the first dust detection means 20. In this case, the second dust counter 24 counts the amount of small dust.

The amount of dust counted by the first dust counting means 23 and the second dust detecting means 21 is sent to the control determining means 29 as a signal. At this time, the control determining means 29 outputs the output of the humidity sensor 15, the amount of large dust (here, human hair having a diameter of about 0.1 mm, etc.) counted by the first dust counting means 23, 2 Considering the amount of small dust (here, mites or pollen having a diameter of about 0.03 mm) counted by the dust counting means 24, the dust detection notifying means 13 composed of LEDs, and tick estimation A control signal is sent to the notification means 14.

  The combination pattern of the detected amount of dust and the output of the humidity sensor when the futon which is the surface to be cleaned is cleaned has a pattern as shown in FIG. 7, and the control judgment means 29 sends a signal to the dust detection notification means 13. The detection threshold value is set such that the total of the counted amount of large dust and small dust in the detected dust is 5 or more.

Moreover, the humidity threshold value of the humidity which the control judgment means 29 estimates that a tick is easy to reproduce sets the output of the humidity sensor 15 as 50% or more of relative humidity. (Hereinafter, the output of the humidity sensor 15 is expressed as high humidity when the relative humidity is 50% or more, and as low humidity when the relative humidity is less than 50%.)
For pattern A, the amount of large dust on the surface to be cleaned is greater than the amount of small dust, and the total amount of dust is less than 5, indicating almost no dust and low humidity. The dust amount is the same as that in the pattern A, and the high humidity state is shown. At this time, since it is considered that there is almost no dust, the control determination unit 29 turns off the dust detection notification unit 13 and the tick estimation notification unit 14.

  For pattern C, the amount of small dust on the surface to be cleaned is greater than the amount of large dust, and the total amount of dust is less than 5, indicating almost no dust and low humidity. The dust amount is the same as that of the pattern C, and the high humidity state is shown. At this time, since it is considered that there is almost no dust, the control determination unit 29 turns off the dust detection notification unit 13 and the tick estimation notification unit 14.

  For pattern E, the amount of large dust on the surface to be cleaned is larger than the amount of small dust, and the total amount of dust is 5 or more, indicating the presence of dust and low humidity. The dust amount and the high humidity state are the same as those of the pattern E. At this time, there are a lot of large dust of about 0.1 mm, but there is no dust like tick, so the control judgment means 29 turns on the dust detection notification means 13 regardless of low humidity or high humidity. The tick estimation notification means 14 is turned off.

  The pattern G indicates that the amount of small dust on the surface to be cleaned is larger than the amount of large dust, the total amount of dust is 5 or more, and there are many small dusts of about 0.03 mm. In addition, because it is in a low humidity state, it is difficult to judge that ticks are likely to propagate on the actual surface to be cleaned and that there are many ticks. The detected small dust is not mites but fine dust such as pollen. It can be estimated that there is. Therefore, the control determination means 29 turns on the dust detection notification means 13 and turns off the tick estimation notification means 14.

  The pattern H represents that the amount of small dust is larger than the amount of large dust on the surface to be cleaned, the total amount of dust is 5 or more, and there are many small dusts of about 0.03 mm. Furthermore, since it is in a high humidity state, it can be estimated that the small dust detected is likely to be a tick, taking into account that it is easy to reproduce mites on the actual surface to be cleaned and that it can be judged that there are many ticks. it can. Therefore, the control determination unit 29 turns on the dust detection notification unit 13 and the tick estimation notification unit 14.

The dust detection notification means 13 and the tick estimation notification means 14 are one notification means composed of LEDs, and are configured to be cheaper by slow flashing in the case of dust detection and fast flashing in the case of tick estimation detection. You can also.

  In addition to the above, it is considered that the detection accuracy is further improved by further determining information from a temperature sensor (not shown).

  As a result, humidity in the vicinity of the surface to be cleaned or moisture contained in the surface to be cleaned is accurately detected, and the size of the sucked dust is also detected. High information can be provided.

  Furthermore, since the tick is detected at the time of the pattern H, the control determination unit 29 increases the energization amount to the electric blower 2 through the electric blower driving unit 27. As a result, the suction force can be increased and the mites present on the surface to be cleaned can be sucked more reliably, and the effect of the mites colliding with the intake passage and dying can be expected by powerful suction.

  Similarly, when the pattern is H, a tick is detected, so the control determination unit 29 increases the number of rotations of the rotating brush 9 that is rotated by the electric motor 10 through the electric motor driving unit 28. Thereby, since the mites on the surface to be cleaned can be scraped more, the mites on the surface to be cleaned can be sucked more reliably.

  As described above, in the present embodiment, since the humidity sensor 15 that detects the humidity in the vicinity of the surface to be cleaned is provided in the path through which the suction air passes, the moisture contained in the vicinity of the surface to be cleaned or in the surface to be cleaned The accuracy of tick detection can be detected because it can accurately detect the humidity in consideration of the humidity, and can also detect the size of the sucked dust, and can estimate whether the sucked dust is a tick based on both information. Therefore, it is possible to provide a user-friendly vacuum cleaner that can provide highly accurate information to the user and can efficiently clean the surface to be cleaned.

(Embodiment 2)
FIG. 8 is a control block diagram of the electric vacuum cleaner according to Embodiment 2 of the present invention, and FIG. 9 is an example of the detected amount of dust and the output of the humidity sensor when the futon that is the surface to be cleaned is cleaned in the electric vacuum cleaner. It is a combination pattern. In addition, about the same part as the vacuum cleaner in the said Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In FIG. 8, the user connects the cleaner body 1 to a commercial power source (not shown), operates the operation unit 4, and outputs the humidity sensor 15 before operating the cleaner body 1. Humidity difference comparison means 26 for comparing the output of the humidity sensor 15 during operation of the cleaner body 1 is provided.

  The combination pattern of the detected amount of dust and the output of the humidity difference comparison means 26 when the futon that is the surface to be cleaned is cleaned has a pattern as shown in FIG. 9, and the control determination means 29 sends a signal to the dust detection notification means 13. Is set such that the sum of the amount of large dust and the amount of small dust counted in the detected dust is 5 or more.

  Further, the humidity difference comparison means 26 determines the threshold value at which the humidity of the surface to be cleaned is high, the humidity before the user starts the operation of the cleaner body 1 and the operation of the cleaner body 1 after the operation. If the absolute value of the difference from humidity is 5% or more and less than 5%, the surface to be cleaned is judged to be low humidity.

As in the first embodiment, in the case of the pattern H, the amount of small dust on the surface to be cleaned is larger than the amount of large dust, the total amount of dust is 5 or more, and there are many small dusts of about 0.03 mm. Indicates that it exists. Further, since the humidity of the surface to be cleaned is high, it can be estimated that the small dust detected is likely to be a tick, taking into account that it is easy to reproduce mites and that it can be determined that there are many mites. Therefore, the control determination unit 29 turns on the dust detection notification unit 13 and the tick estimation notification unit 14.

  As described above, in the present embodiment, when the amount of small dust counted is large and the output of the humidity difference comparison means 26 is equal to or greater than a predetermined value, it can be estimated that the sucked dust is a tick. .

  As a result, the humidity of the atmosphere can be detected almost before the start of operation of the vacuum cleaner, and when the surface to be cleaned is cleaned, such as a futon that is not sun-dried during operation, the humidity of the surface to be cleaned Even if it is not possible to accurately detect whether the humidity is relatively high compared to the atmosphere, it is possible to accurately detect the humidity of the surface to be cleaned even if the humidity of the room has changed. Can be added to tick estimation. Therefore, the accuracy of tick detection is increased, and highly accurate information can be provided to the user.

  The vacuum cleaner of the present invention can accurately detect ticks on the surface to be cleaned and can provide information to the user, so that the user particularly cares about removal of ticks. It can be suitably applied to the field and application of the machine.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner body 2 Electric blower 3 Hose 4 Operation part 5 Extension pipe 6 Dust collection chamber 7 Inlet 8 Suction tool 9 Rotating brush 10 Electric motor 11 Dust detection part 12 Hand grip part 13 Dust detection notification means 14 Tick estimation notification means (notification means)
15 Humidity sensor (humidity detection means)
DESCRIPTION OF SYMBOLS 16 Light emission part 17 Light-receiving part 18 Suction port 20 1st dust detection means 21 2nd dust detection means 22 Dust detection part 23 1st dust count means 24 2nd dust count means 25 Dust amount measurement means 26 Humidity difference comparison means 27 Electric blower Driving means 28 Electric motor driving means 29 Control judging means 40 Electric vacuum cleaner

Claims (6)

A vacuum cleaner body having a built-in electric blower for generating suction air and having a dust collecting chamber for collecting dust, electric blower driving means for driving the electric blower, and a first that reacts to dust of a predetermined size. A dust detection means, a second dust detection means capable of reacting to dust smaller than the predetermined size, and a humidity detection means for detecting the humidity in the vicinity of the surface to be cleaned which is arranged in a path through which the suction air passes. And a vacuum cleaner characterized in that the sucked dust is estimated to be a tick from the output results of the first and second dust detection means and the humidity detection means. Humidity difference comparison means for comparing the output of the humidity detection means before operating the vacuum cleaner and the output of the humidity detection means during operation is provided, and suction is performed when the output of the humidity difference comparison means is equal to or greater than a predetermined value. The vacuum cleaner according to claim 1, wherein the dust is estimated to be a tick. The vacuum cleaner according to claim 1 or 2, further comprising a suction tool having a suction port for sucking dust on a surface to be cleaned, and having a humidity detecting means provided in the vicinity of the suction port. The vacuum cleaner of any one of Claims 1-3 provided with the alerting | reporting means which alert | reports to a user that attraction | suction dust is a tick when it is estimated that the attracted dust is a tick. The electric vacuum cleaner according to any one of claims 1 to 4, wherein when the sucked dust is estimated to be a tick, the electric blower driving means increases an energization amount to the electric blower. 4. The suction tool includes a rotating brush that sweeps up dust and an electric motor that drives the rotating brush, and increases the rotational speed of the electric motor when the sucked dust is estimated to be mites. The vacuum cleaner of any one of -5.

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