JP2011194147A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vacuum cleaner that prevents dust, virus, various germs, allergic substances, etc., from being suspended around a vacuum cleaner user where suspended dust has a high concentration.SOLUTION: The vacuum cleaner includes a vacuum cleaner body 101 composed of an electric blower for generating a suction air and a dust collecting chamber for collecting sucked objects sucked through a hose unit 112. The vacuum cleaner is also equipped with a mist generating part 110 that has platinum particles to generate a negative-charged platinum mist 111 and that releases it into a space for the use of the vacuum cleaner, wherein the mist generating part 110 is installed for example in a handle part 106, the vacuum cleaner body 101, a pipe 108, or the like, performing air cleaning and enhancing a hygienic condition.

Description

  The present invention relates to a vacuum cleaner. In particular, it relates to the removal of floating dust.

  In recent years, the number of patients suffering from allergic symptoms such as pollen and house dust has increased remarkably, and interest in indoor air quality tends to increase rapidly. Under such circumstances, household appliances such as air conditioners and air purifiers having a function of purifying indoor air are becoming popular. On the other hand, for vacuum cleaners (hereinafter referred to as “vacuum cleaners”), indoor air quality, such as using the air to raise floor dust and exhausting the main body of the vacuum cleaner, including fine dust, etc. It was a cause of worsening.

  Dust that rises from the floor surface by using a vacuum cleaner includes not only normal house dust, but also viruses that have been brought down into the house by people, various germs, pollen and mites and allergens (allergens). And may cause health hazards for vacuum cleaner users.

  Recent vacuum cleaners have been designed based on considerations such as exhausting upward so that the exhaust air does not directly hit the floor and raise dust. Furthermore, in order to reduce dust contained in the exhaust of the cleaner body, a function for cleaning the exhaust is provided, such as mounting a high-performance dust removal filter at the exhaust outlet of the body.

  In addition, the soaring dust does not fall immediately when floating in the indoor space, but continues to float for about 10 minutes or more, and falls to the floor when cleaning is completed. Therefore, for the purpose of removing floating dust (floating dust), a floor brush head having a floating dust suction port on its upper surface has been commercialized.

  Furthermore, for the purpose of efficiently sucking in dust, a configuration has been proposed in which a static electricity is removed from a cleaning surface such as a carpet of a floor brush head to provide a floor nozzle for a vacuum cleaner with improved cleaning performance (for example, Patent Document 1). For example, a mist generator is provided in the main body (floor brush head), receives a signal from a potential measuring device that detects the potential of the cleaning surface, and jets mist to the cleaning surface.

  In addition, it consists of a spray nozzle, a water storage tank, and a liquid feed pump installed inside the head. Fine particles are ejected from the spray nozzle to easily remove dust from the floor and agglomerate fine dust in the atmosphere and floor. There has been proposed a configuration that improves the dust collection performance from the head by making it difficult to fly up (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 7-148091 JP 2007-54352 A

  However, in Patent Document 1, since the mist is jetted into the interior of the floor brush head (only the floor surface covered by the floor brush head), there is an effect in removing terrible dirt originally stuck to the floor surface. The above-described cleaning operation does not have the effect of suppressing the rising of dust on the floor surface. Further, in Patent Document 2, although there is a reduction effect on the rising of floating dust that makes the indoor environment in a poor state, the effect is only a partial effect on the front direction of the floor brush head or the inside of the floor brush head. In addition, there is a low probability that a mere water droplet may accidentally come into contact with dust floating in a large space, and a great effect has not been obtained.

  The present invention has been made to solve the above-described problems, and in particular, obtains a vacuum cleaner that can prevent dust, viruses, germs, allele substances, and the like from floating around a vacuum cleaner user. For the purpose.

  In order to solve the above problems, an electric vacuum cleaner according to the present invention includes an electric blower that generates suction air and an electric vacuum cleaner main body having a dust collection chamber that collects suction material sucked through a hose unit, and platinum. A mist generating unit that has particles, generates negatively charged water droplets, and discharges the water droplets into a space related to the use of the vacuum cleaner.

  The vacuum cleaner according to the present invention has platinum particles in a space, particularly around a vacuum cleaner user in which the concentration of floating dust is high when floating dust, floating viruses, floating bacteria, and floating allele substances are cleaned with a vacuum cleaner. Since the water droplets having the water content are removed, the air can be cleaned and the hygiene can be improved.

It is the schematic for demonstrating an example of the whole structure of the cleaner which concerns on Embodiment 1. FIG. It is a figure of the positional relationship between the platinum mist 111 of Embodiment 1 and the cleaner user. It is a figure which shows the comparison of the average density | concentration of the dust which floats. It is the schematic for demonstrating the measurement of the relationship between the dust increase amount which floats and a floor height. It is a graph which shows the measurement result of the relationship between the amount of dust increase at the time of vacuum cleaner use, and floor height. 6 is a graph for explaining a charged state of platinum mist 111; FIG. 4 is a diagram showing a particle size distribution of platinum mist 111. It is a figure showing the graph for demonstrating the charging state of the platinum mist 111. FIG. It is a figure showing the graph explaining the aggregation effect | action of the floating dust of this invention. It is a figure showing the graph for demonstrating the lifetime which the platinum mist 111 floats. It is a figure for demonstrating the antibacterial effect in the platinum mist 111. FIG. It is a figure of the positional relationship of the platinum mist 111 of Embodiment 2 and the cleaner user. It is a figure showing the position of the platinum mist generating part 110 of this Embodiment. It is a figure showing the vacuum cleaner main body 101 which provided the floating dust suction opening 401. FIG. FIG. 10 is a diagram illustrating the presence / absence of emission of platinum mist 111 in the second embodiment. FIG. 10 is a schematic diagram for explaining an example of a cleaner according to a third embodiment. FIG. 10 is a schematic diagram for explaining an example of a cleaner according to a third embodiment. It is a figure showing the structure of the platinum mist generating part 110 which concerns on Embodiment 4. FIG.

  Embodiments of the present invention will be described below.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram for explaining an example of a vacuum cleaner according to Embodiment 1 of the present invention. In FIG. 1, the vacuum cleaner main body 101 has at least a main body upper lid 102, a hose insertion port 103, and a main body exhaust port 104. Then, an electric blower (not shown) provided in the main body is driven to generate suction air, sucking dust and the like through the hose unit 112, and a dust collection chamber (not shown) having a dust removal filter and the like. ) Etc. The main body upper lid 102 is a lid for taking out dust or the like sucked by the vacuum cleaner main body 101 and collected in a dust collection chamber or the like. The hose insertion port 103 is an opening for inserting the hose 105 in order to perform suction through the hose 105. The main body exhaust port 104 is an opening for discharging the air sucked by the cleaner main body 101 together with dust and the like. Here, in order not to exhaust air directly to the floor surface, the main body exhaust port 104 is opened in a direction not facing the floor surface.

  The hose unit 112 of the present embodiment includes a hose 105, a handle portion 106, an operation switch 107, a pipe 108, a floor brush head 109, and a platinum mist generating portion 110. The bellows-like hose 105 is an extension tube that can be bent. One end of the hose 105 is inserted into the hose insertion port 103, and a handle portion 106 is provided at the other end.

  The handle portion 106 is a handle that is gripped when a vacuum cleaner user performs cleaning, for example. The operation switch 107 is provided on the handle portion 106. For example, a switch used by a vacuum cleaner user to input an instruction on whether or not to drive, suction force and the like to a control device (not shown) in the vacuum cleaner body 101. It is. Here, although not particularly limited, for example, a display unit (not shown) may be provided in the vicinity of the operation switch 107 to display the driving status and the like.

  The pipe 108 is, for example, a cylindrical extension pipe. Further, the floor brush head 109 detachably connectable to the pipe 108 has a brush, for example, a suction for contacting the floor surface and, depending on the case, scavenging dust from the floor surface and causing the cleaner body 101 to suck it. It is a tool. Although the floor brush head 109 is used here, another suction tool (attachment) may be used.

  The platinum mist generating unit 110 includes a nanometer-order size mist (water droplets; hereinafter referred to as platinum mist) 111 having platinum particles having a diameter (size) in the order of nanometers when the vacuum cleaner is operated. It has a generator that discharges into a space (a space where cleaning is performed). The platinum mist generating unit 110 releases the platinum mist 111 so that dust or the like does not float around the vacuum cleaner user.

  FIG. 2 is a schematic diagram showing the positional relationship between the space from which the platinum mist 111 is released and the cleaner user in the cleaner of the present embodiment. In the present embodiment, a platinum mist generating part 110 is provided on the handle part 106 (the part serving as a handle, in the vicinity of the operation switch 107). At this time, it is desirable to provide the platinum mist 111 at a position where the platinum mist 111 is released above the handle portion 106. Thus, by providing the platinum mist generating part 110 in the handle part 106, the platinum mist 111 is not diffused by the exhaust of the main body exhaust port 104. Further, the platinum mist 111 having a high concentration can be discharged into the space around the upper body (particularly the face portion) of the cleaner user.

  FIG. 3 is a diagram showing a comparison of average concentrations of dust floating up to 150 cm above the floor. In FIG. 3, in the room, there is no operation of the vacuum cleaner (in a state where the vacuum cleaner is not cleaned) and the floor brush head 109 around the cleaner when the vacuum cleaner is operated for cleaning, the vacuum cleaner user's surroundings, and the vacuum cleaner main body 101. It shows what was measured around. Compared to the case of no operation, the dust concentration is higher during cleaning using the vacuum cleaner, especially the vacuum cleaner user is the highest, and then the floor brush head 109 and the vacuum cleaner body. The order is around 101.

  FIG. 4 is a schematic diagram for explaining a state in which the relationship between the amount of floating dust and the floor height is measured when using a vacuum cleaner. In this measurement, the floor area with a cleaning range of about 2 meter square is moved for several minutes while operating the vacuum cleaner, and the amount of dust increase in the space on the floor is measured with a particle counter. The measurement points were 30 cm, 60 cm, 120 cm and 150 cm above the floor.

  FIG. 5 is a graph showing the measurement result of the relationship between the amount of increase in dust and the height above the floor when using the vacuum cleaner. The horizontal axis is the height above the floor, the vertical axis is the dust increase rate, and the particle diameters of the floating dust to be measured were 0.3 μm, 0.5 μm, 1 μm, and 2 μm, respectively. The vertical axis is normalized by the amount of suspended dust before cleaning (normal) (100% before cleaning). It can be seen that any particle size exceeds the normal amount. In particular, the increase in the amount of floating dust of 1 μm and 2 μm is large. In particular, in 2 μm, there is a floating amount equivalent to twice the normal amount even at a height of 150 cm on the floor. Since the position where the floor height is 150 cm frequently repeats the operation of the vacuum cleaner user bending over, there is a high possibility that the position is near the face during the cleaning operation. From this result, it can be said that the cleaner user when using the cleaner is highly likely to breathe inhaling floating dust. For this reason, as described above, the platinum mist 111 is discharged into the space around the upper body of the vacuum cleaner user.

  FIG. 6 is a schematic view of the platinum mist generator 110. The platinum mist generating unit 110 according to the present embodiment includes a power source 601, an electrode pair of a negative electrode 602 and a ground electrode 603. The power source 601 applies a high voltage, such as 4 kV, between the electrode pairs based on power supply from the cleaner body 101, for example, to generate a high electric field (increases the electrostatic force of the electric field). A part of the ground electrode 603 is opened in order to allow the platinum mist 111 emitted from the negative electrode 602 to pass through and release it to the external space.

The negative electrode 602 having a negative potential with respect to the ground electrode 603 is formed of a metal foam (porous structure) having an acute angle protrusion on the side facing the ground electrode 603. In the present embodiment, the negative electrode 602 carries particles mainly composed of silicon oxide (SiO ₂ ) in the pores, and platinum particles having a diameter of several nanometers are attached to the particles. When water enters the hole of the negative electrode 602, the highly hydrophilic platinum particles are detached from the silicon oxide particles and released into water. Water 604 containing platinum particles is transported to the protruding portion and collected at the tip portion by capillary action. Water 604 containing platinum particles collected at the tip of the protrusion is crushed and nanometer by the electrostatic force of the high electric field generated when the power source 601 applies a high voltage between the negative electrode 602 and the ground electrode 603. It becomes a mist (water droplet) having an order particle size (size). The mist is negatively charged to maintain the particle diameter, and is attracted to the ground electrode 603 side, passes through the opening of the ground electrode 603 and floats in the external space.

  Here, in the present embodiment, the silicon oxide carried by the negative electrode 602 adsorbs moisture in the air, thereby securing water 604 serving as mist in the negative electrode 602. For this reason, although the discharge | release amount of the platinum mist 111 in the platinum mist generation | occurrence | production part 110 changes with the temperature / humidity (water | moisture content in air) of the environment where a vacuum cleaner is set, for example, 0.01-0.1cc / hr Can be released.

FIG. 7 is a diagram showing the particle size distribution (measurement result) of the platinum mist 111. As shown in FIG. 7, the particle diameter of the platinum mist 111 produced | generated in the platinum mist generating part 110 has a peak in the area | region of 10-30 nm, and the largest diameter is 100 nm. In this measurement (applied voltage 4 kV), the number of mists at the peak particle diameter is on the order of several hundred thousand per cm ³ of air, and has a very high concentration mist generating ability.

  Next, the reason why the platinum mist 111 has a high aggregating effect with respect to floating dust will be described. The platinum mist 111 is negatively charged and released to efficiently contact floating dust that tends to be positively charged by electrostatic action, and the mist acts in a bridging manner to attract and aggregate a large number of floating dust. Can be made.

  FIG. 8 is a graph showing the measurement results of the charge amount of only the mist and the platinum mist. It can be seen that the platinum mist has a charge amount approximately twice that of the mist alone.

FIG. 9 is a diagram showing a graph for explaining the floating dust aggregation effect of the present invention. A stable equilibrium state where air dust (atmospheric airborne dust) level dust exists in a sealed 1 m ³ box is created. The residual ratio is measured over time. Here, this measurement does not indicate a local effect that can directly simulate the surroundings of the vacuum cleaner user, but the relationship between the time taken to process the inside of a 1 m ³ box on average and the effect. Is shown. Therefore, the local floating dust removal effect of the platinum mist is determined by the time until contact.

  In this measurement, the temperature condition was 21 to 23 ° C., the humidity condition was 45% RH (relative humidity), and the floating dust in the box was measured with a particle counter. It can be seen that when nothing is done, there is almost no change in the residual rate with time, whereas the concentration of platinum mist greatly decreases with time. As described above, this is due to the effect that the charged platinum mist aggregates and drops the suspended dust. Here, it is considered that the generation ability of the platinum mist 111 of the platinum mist generation unit 110 described above is an amount sufficient to cause an agglomeration effect and to reduce the residual rate of floating dust.

  Next, the reason why the platinum mist 111 is largely negatively charged and the reason why the amount of charge is large compared to only the mist not having platinum particles will be described below. An electrostatic force is generated by applying a high voltage (high electric field) between water 604 having platinum particles held at the tip of the negative electrode 602 and the ground electrode 603. At this time, the surface of the water 604 rises locally to generate a Taylor cone. The water 604 is in a negative (negative) charged state, and when the electrostatic force exceeds the surface force of the water 604, the water 604 leaves the negative electrode 602 and splits, and has a few nanometers of platinum particles and is negative. The charged fine particle water is released into the air.

  Further, it is known that the platinum particles themselves have a material characteristic of being negatively charged, and their zeta potential is about −40 mV. As described above, the platinum mist 111 has a large negative charge amount due to the electron supply and the zeta potential of the platinum particles themselves.

  FIG. 10 is a diagram illustrating a graph for explaining the lifetime floating in the space of the platinum mist 111 generated by the platinum mist generating unit 110. FIG. 10 compares the mist particle size distributions of the platinum mist 111 and the mist flying distance (measured at locations 0.5 m and 1 m away from the device generation location) generated by ultrasonic waves (50 MHz). For the measurement, SMPS (Scanning Mobility Particle Sizer) was used.

  Since the platinum mist 111 is in a charged state, electrostatic repulsion occurs between the mists, so that aggregation of the mists is less likely to occur, and peak fluctuations in particle diameter over time are not observed. On the other hand, since the mist generated by the ultrasonic waves is in an uncharged state, it can be seen that aggregation between the mists occurs with time and the peak of the particle diameter increases. For this reason, this measurement shows that the platinum mist 111 is in a charged state, and thus can exist stably as a particle having a small particle diameter for a relatively long time because the flight distance is long.

  FIG. 11 is a diagram for explaining the antibacterial effect in the platinum mist 111. FIG. 11 shows the antibacterial activity value of Escherichia coli when the amount of released water is 0.05 cc / hr, 0.5 cc / hr, and whether or not platinum is contained. The higher the antibacterial activity value, the higher the antibacterial effect. In the case of water not containing platinum, no antibacterial effect is observed, but in the case of water containing platinum, an antibacterial effect appears. Further, the amount of platinum released is increased by increasing the amount of water released, so that the antibacterial effect is increased.

  As described above, in the electric vacuum cleaner of the first embodiment, the platinum mist generating unit 110 is provided in the handle unit 106, the platinum mist 111 which is a water droplet of nanometer size order is discharged, and the vacuum cleaner is used. Because it is removed by adhering to suspended dust, viruses, germs, alleles, etc. floating in the space, it is possible to clean the air. At this time, water droplets and platinum have a negative charge, and the platinum mist 111 having a large charge amount attracts floating dust and the like, and has the effect of causing charge aggregation and dropping. For this reason, it is possible to remove a large amount of suspended dust and the like faster than in the case of discharging uncharged mist as in the prior art. In particular, in the present embodiment, the platinum mist 111 is released around the upper body (particularly the face) of the vacuum cleaner user, thereby preventing the vacuum cleaner user from breathing and inhaling floating dust. it can.

  Since the negative electrode 602 is made of a metal foam of a porous structure having an acute angle protrusion, moisture can be collected at the tip of the protrusion due to a capillary phenomenon caused by a plurality of holes. Then, by applying a high voltage between the ground electrode 603 and the negative electrode, the collected water can be released as nano-sized minute water droplets while being crushed.

  In addition, since platinum particles are attached to particles mainly composed of silicon oxide and are supported on the negative electrode 602, moisture in the air absorbed by particles mainly composed of silicon oxide is released as platinum mist 111. It can be used as moisture for

Embodiment 2. FIG.
FIG. 12 is a schematic diagram showing the positional relationship between the space where the platinum mist 111 is generated in the cleaner of the present embodiment and the cleaner user. In this Embodiment, as shown in FIG. 12, the platinum mist generating part 110 is provided in the cleaner main body 101, and the platinum mist 111 is made to spread from the feet of the cleaner user to the knees to the waist.

  FIG. 13 is a diagram illustrating the position of the platinum mist generating unit 110 of the present embodiment. The platinum mist generator 110 is provided in the cleaner body 101 at a position where there is almost no influence of the exhaust air from the cleaner body 101. In this Embodiment, it provides in the position which can discharge | release platinum mist 111 in the hose insertion port 103 vicinity which can be discharge | released to the circumference | surroundings of a cleaner user, or the near front (hose insertion port 103) side direction of the upper part of the cleaner body 101. . For this reason, the platinum mist 111 is not diffused by the exhaust air from the main body exhaust port 104, and the high-concentration platinum mist 111 can be discharged around the cleaner user. Then, the platinum mist 111 aggregates in the floating dust 1302 that has risen from the dust 1301 on the floor. Since the floating dust 1303 related to the aggregation falls, the floating dust around the cleaner user is removed.

  FIG. 14 is a diagram illustrating the cleaner body 101 provided with the floating dust suction port 1401. The vacuum cleaner main body 101 of FIG. 14 has a floating dust suction port 1401 for sucking floating dust 1303 related to the periphery and aggregation. By performing the suction, floating dust removal from a higher space can be obtained in combination with the agglomeration and fall effect by the platinum mist 111.

FIG. 15 is a diagram illustrating a graph of the presence or absence of emission of platinum mist 111 from the position of the platinum mist generating unit 110 in the second embodiment. The graph of FIG. 15 represents the results obtained by performing the following measurements and the like. Using a 1 m ³ box surrounded entirely by an acrylic resin plate, the floor brush head 109 was moved back and forth to rub the floor surface continuously. At this time, the amount of floating dust rising from the floor surface was measured and verified by comparing with the presence or absence of the platinum mist 111.

First, a 1 m ³ box was provided with an opening having a small area so that one arm could be placed at an arbitrary position. Then, the vacuum cleaner is arranged at a position inside the box that can be moved in the front-rear direction in the same manner as a normal cleaning operation by putting one arm through this opening and grasping the nozzle portion of the vacuum cleaner.

  Moreover, dust was generated by hitting a dust cloth in the box, and dust was dropped and accumulated on the floor surface in a pseudo manner. Further, the opening was closed and allowed to stand for 30 minutes or more, and the floating dust was dropped on the floor surface in the box. At this time, the suspended dust concentration inside the box was measured, and it was confirmed that it was almost the same value as room air (air outside the box).

  Next, the vacuum cleaner is operated so that the floor brush head 109 is brought into contact with the floor surface and reciprocated five times in the front-rear direction. At that time, the amount of floating dust in the space above the floor brush head 109 changes with time. Was measured. At this time, the measurement position was 30 cm above the floor in the box, and the amount of suspended dust was measured with a particle counter. Here, since this measurement object is house dust containing pollen, mites, dust, and the like, the particle diameter is set to 1 μm or more. Further, the platinum mist 111 is discharged at the timing when the floor brush head 109 is pushed forward, and at this time, the number of times of discharge is three.

  In the graph of FIG. 15, the horizontal axis is the elapsed time (minutes), and the vertical axis is the particle number concentration (number / L) representing the number of particles of floating dust contained in 1 liter of air. In FIG. 15, the white circle is the initial state (bag ground) before the cleaning operation, the black circle is the cleaning operation without releasing the platinum mist 111, and the white square is the cleaning operation with the platinum mist 111 released. The results are plotted respectively.

  As shown in the graph, when the cleaning operation is performed without releasing the platinum mist 111 with respect to the initial state (bag ground), the floating dust concentration is about 30 times at the maximum, and the state is 10 minutes after the start. The result was sustained.

  On the other hand, when the cleaning operation is performed with the platinum mist 111 released, the floating dust can be suppressed with the passage of time when the cleaning operation is performed with the platinum mist 111 released relative to the initial state (bag ground). As a result, the suspended dust concentration decreased to a level equivalent to that in the initial state (bag ground).

  As described above, according to the second embodiment, the platinum mist generating part 110 is provided on the front side of the upper surface of the cleaner body 101, so that the cleaner occupies the feet, knees, and waist area. Platinum mist 111 can be released. For this reason, it is possible to remove floating dust that tends to fly upward, and to reduce the concentration of floating dust around the vacuum cleaner user.

  Moreover, since the floating dust suction port 1401 is provided in the cleaner body 101, the floating dust can be further efficiently removed. In comparison with the case where the cleaning operation is performed without releasing the mist, the amount of floating dust can be reduced to 1/5 at the time of the maximum generation amount to the dust concentration level in the initial indoor environment. The time required for reduction could be shortened by about 25%.

Embodiment 3 FIG.
16 and 17 are schematic views for explaining an example of the cleaner according to the third embodiment. The vacuum cleaner of FIG. 16 has a platinum mist generator 110 provided on the floor brush head 109. Moreover, the vacuum cleaner of FIG. 17 is attached to an arbitrary position of the pipe 108 of the hose attachment.

  As described above, according to the vacuum cleaner of the third embodiment, since the platinum mist generating unit 110 is provided on the floor brush head 109 and the pipe 108, as in the second embodiment, The platinum mist 111 can be released so as to spread around the feet, knees and waist.

Embodiment 4 FIG.
FIG. 18 is a diagram illustrating a configuration of platinum mist generating unit 110 for explaining the fourth embodiment. In FIG. 18, a Peltier element 1801 serving as a condensing unit condenses and collects moisture in the air and drops it onto the negative electrode 602.

  For example, in Embodiment 1, the silicon oxide supported by the negative electrode 602 secures water for the negative electrode 602 by adsorbing moisture in the air. In the present embodiment, the Peltier element 1801 is energized to cool the air around the Peltier element 1801, thereby increasing the relative humidity and collecting moisture. For this reason, moisture can be efficiently collected.

Embodiment 5 FIG.
In the above-described embodiment, the platinum mist generating unit 110 is provided at one location of the vacuum cleaner, but may be provided at a plurality of locations such as the handle portion 106 and the vacuum cleaner main body 101.

  DESCRIPTION OF SYMBOLS 101 Vacuum cleaner main body, 102 Main body upper cover, 103 Hose insertion port, 104 Main body exhaust port, 105 Hose, 106 Handle part, 107 Operation switch, 108 Pipe, 109 Floor brush head, 110 Platinum mist generating part, 111 Platinum mist , 112 hose unit, 601 power source, 602 negative electrode, 603 ground electrode, 604 water, 1301 floor dust, 1302 floating dust, 1303 floating dust associated with aggregation, 1401 floating dust suction port, 1801 Peltier element.

Claims (12)

A vacuum cleaner main body having a dust collection chamber for collecting a suction object sucked through an electric blower and a hose unit that generate suction air;
An electric vacuum cleaner comprising: a mist generating unit that has platinum particles, generates negatively charged water droplets, and discharges the water droplets into a space related to use of the vacuum cleaner.   2. The electric vacuum cleaner according to claim 1, wherein the mist generating unit discharges water droplets having a particle diameter of nanometer order including the platinum particles having a particle diameter of nanometer order.   The electric vacuum cleaner according to claim 1 or 2, wherein the mist generating part is provided in a handle part which is a handle in the hose unit, and the water droplets are discharged above the handle part.   The vacuum cleaner according to any one of claims 1 to 3, wherein the mist generating unit is provided at an upper front portion of the main body of the vacuum cleaner and discharges the water droplets above the main body of the vacuum cleaner. .   The vacuum cleaner according to any one of claims 1 to 4, wherein the mist generating portion is provided in a pipe that connects a handle portion serving as a handle in the hose unit and a suction tool.   The vacuum cleaner according to any one of claims 1 to 5, wherein the mist generating part is provided in a suction tool.   The vacuum cleaner according to any one of claims 1 to 6, wherein the mist generating unit includes a ground electrode and a negative electrode that has a lower potential than the ground electrode due to charge supply.   The vacuum cleaner according to claim 7, wherein the negative electrode has a metal foam that carries the platinum particles inside a plurality of holes, and a part of which has a protruding shape.   The vacuum cleaner according to claim 8, wherein the negative electrode is installed such that a tip of the protruding shape faces a ground electrode.   The vacuum cleaner according to claim 8 or 9, wherein the negative electrode carries silicon oxide by adhering the platinum particles to particles containing silicon oxide as a main component. The mist generating unit further includes a condensing device for condensing and extracting moisture in the air and supplying the condensed water to the negative electrode,
10. The vacuum cleaner according to claim 8, wherein the negative electrode collects moisture supplied from the condensing device at a tip of the protrusion shape by capillary action due to the plurality of holes. 11.   The vacuum cleaner according to any one of claims 1 to 11, wherein a floating dust suction port for sucking air to collect the floating dust is provided in the main body of the vacuum cleaner.

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