JPH1033926A - Air cleaner and negative ion generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a state filled with water by simple constitution and to stop inflow by equipping a stop valve in an inflow part for introducing air into a storage tank and energizing the stop valve in the closing direction through buoyancy generated by liquid in the tank in the case of bringing air into contact with sprayed liquid to remove dust or the like. SOLUTION: When a water supply tank, into which water is poured in a state neary filled with water, is set in a storage part 8, the pressing shaft 102 of a plumbing valve 100 is pressed by a boss 123 in the nearly central part of a fitting cylinder part 22 and the plumbing valve 100 resists a compression spring 108 to open the valve. Thereby, water in the water supply tank flows into a chamber tank through a communication hole. Further, when a recovery switch is turned on and a recovery mode is set, a motor for drawing water is energized and waste water in a gathering part is introduced into the water supply tank through the chamber tank. When waste water touches a float 91 in the water supply tank, the float 91 is lifted and both a compression spring 99 and a valve 89 are pushed upward to open an air vent valve 88 and the flow path of an inflow part 130 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier and a negative ion generator. In detail, a rotating body that sprays fine water droplets is provided, and air sucked from the outside is adsorbed by these fine water droplets and collected, thereby removing dust and the like contained in the air and purifying the air. In addition to generating negative ions by scattering water droplets, an on-off valve that opens and closes the air flow path is provided in a part of the storage tank, and when the storage tank is also used as a recovery tank, this tank is almost full. In this case, the flow of the collected liquid into the storage tank can be automatically stopped by automatically closing the on-off valve when the pressure becomes zero.

[0002]

2. Description of the Related Art Conventionally, humidifiers, coolers, air purifiers, oil heaters and the like have been known as devices provided with a water supply (replenishment) tank for using liquids such as water and petroleum. An air purifying device or the like is also provided with a collection tank for collecting used water. The water supply tank used in these devices is configured to be detachable so that the liquid can be replenished and replaced, and the recovery tank can be disposed so that the waste liquid can be discarded when the tank is full of waste liquid.

[0003]

By the way, it is necessary to detect by some means that the recovery tank is full of waste liquid. In the case of using electrical means such as an optical sensor, a sensor and a circuit board are required, and it is not possible to detect a full water level at the time of a power failure or the like. When an overflow pipe is used, there is no need for a special detecting means, but a piping work is required, which increases the cost.

The present invention has been made in order to solve the above-mentioned problems and the like. Therefore, the present invention provides a storage tank which can detect a full state and shut off the inflow simply by providing an on-off valve which opens and closes in accordance with the water level. The present invention proposes an air purifying device and a negative ion generating device.

[0005]

In order to solve the above-mentioned problems, in the air purifying apparatus according to the first aspect, a liquid such as water is sprayed, and the sprayed liquid is brought into contact with air sucked from outside. This is an air purifier that removes odor, dust, and the like contained in the air, and has a storage tank for supplying liquid, and the storage tank flows out of the liquid in the storage tank. And an inflow portion for inflowing air into the storage tank. The inflow portion is provided with an on-off valve for opening and closing the inflow portion, and the on-off valve is closed by first urging means. And urged in the closing direction by buoyancy generated by the liquid stored in the storage tank.

According to a tenth aspect of the present invention, there is provided a negative ion generator for generating negative ions by spraying a liquid such as water as fine water droplets, wherein a storage tank for supplying the liquid is provided. The storage tank has an outflow portion for flowing out the liquid in the storage tank, and an inflow portion for flowing air into the storage tank, and the inflow portion has an on-off valve for opening and closing the inflow portion. Wherein the on-off valve is biased in the closing direction by the first biasing means, and is biased in the closing direction by buoyancy generated by the liquid stored in the storage tank. .

In the air purifying device and the negative ion generating device, when the inside of the storage tank is almost full due to the liquid stored therein, especially when the waste liquid is collected from the outflow side, it is provided at the inflow portion of the storage tank as a recovery tank. The opened / closed valve is automatically closed when the water level rises. This prevents the liquid from flowing into the storage tank, so that the waste liquid does not leak from the storage tank.

[0008]

Next, an embodiment of an air cleaning device 6 according to the present invention will be described in detail with reference to the drawings. First, the air cleaning device 6 will be described with reference to FIG.

The air purifying apparatus according to the present invention purifies the external air taken in from the intake port 12 by using water and cleans the external air.
The function is broadly divided into intake, purification processing (purification processing), and exhaust. The air cleaning process is performed by a spraying unit that sprays the liquid in a mist state, and the water used here is supplied (supplied) from a water supply tank (reservoir tank) provided in the apparatus. In this example,
This water supply tank is used not only for water supply but also as a recovery tank for collecting used water (waste water). It is configured to take a mode.

FIG. 1 is an overall configuration diagram of an air cleaning device 6 according to the present invention, FIG. 2 is an enlarged view of a left portion of the air cleaning device 6, and FIG. Indicates a state stored (set) in the storage unit 8.

As shown in FIG. 1, the air purifying device 6 has a substantially box shape as a whole, and a cylindrical exhaust duct 9 is arranged on the left side of the device main body 7 and a water supply tank 15 is disposed on the right side thereof.
A storage unit 8 for detachably storing is provided.

As shown in FIG. 1, the exhaust duct 9 has a substantially cochlear shape, the inner duct acting as the intake duct 10 and the outer duct acting as the exhaust duct 9. Therefore, substantially the center of the exhaust duct 9 becomes a substantially L-shaped intake duct 10, and the cylindrical spray portion 11 is installed in the cylindrical portion 27 of the intake duct 10. The intake port 12 of the intake duct 10 opens at one end side (left side in the figure) of the main body 7,
The lower end opening of the intake duct 10 is sealed by an end plate 16 having a plurality of openings. Therefore, as shown in FIG. 2, the outer peripheral side of the end plate 16 has a plurality of ventilation holes (openings) 17 in the circumferential direction. These ventilation holes 17, 17
Is for allowing the air cleaned by the spray unit 11 to pass through.

A casing 19 is integrally provided above the upper plate portion 18 of the exhaust duct 9.
One end (the left side in the figure) 9 is opened as an exhaust port 23 to the outside. A ventilation hole 26 for sending air into the casing 19 is formed in the upper plate portion 18.
A sirocco fan 25 driven by a motor 24 is disposed so as to block the air. When the sirocco fan 25 rotates, the purified air is exhausted from the exhaust port 23 through the ventilation hole 26.

On the other hand, as shown in FIG. 3, the storage section 8 is a housing for inserting and removing the water supply tank 15 and is generally formed in a substantially box shape (a rectangular parallelepiped shape). 7 is supported by an inner flange 7a and an extension 19a extending from the peripheral edge of the casing 19. The lower half of the storage section 8 is selected so as to substantially match the width of the water supply tank 15, and the upper half is formed slightly wider so as to easily store the water supply tank 15. A tank storage opening (upper opening) of the storage unit 15 is configured to be openable and closable about a pivot 20.
(Lid) to open and close.

At the approximate center of the convex bottom portion 67 of the storage section 8, there is formed a mounting cylinder section 22 protruding inward (upward in the figure), as shown in FIG. 1, in which the water supply tank 15 is set. Is done. The mounting cylinder portion 22 is a water introduction port of the water supply tank 15, and a chamber tank 69 is inserted into a lower portion thereof. The chamber tank 69 includes a first branch pipe 40 described later.
It is connected to.

As shown in FIGS. 2 and 3, an end plate 28 is attached to the lower side of the storage section 8 so as to cross the inside of the main body 7, and a room on the bottom side of the main body partitioned by the end plate 28 is provided. The pool portion 29 is fixedly mounted. The water supplied from the water supply tank 15 and the water used by the cleaning process of the spray unit 11 are stored in the storage unit 29. In this example,
The accumulation portion 29 is formed as a double cylindrical body, and the lower end portion of the exhaust duct 9 is fitted and fixed by a small-diameter support cylindrical portion 30 provided inside.

As shown in FIG. 3, a part of the bottom of the pool portion 29 is formed as a concave portion 33, and a centrifugal pump 31 for water supply used as water pumping means is disposed in a pump casing 50 provided therein. ing.

A pumping motor 48 for rotating the centrifugal pump 31 is mounted and fixed on the upper portion of the end plate 28. Since the centrifugal pump 31 and the pumping motor 48 are mounted relatively far apart, they are connected by a rotating shaft 49 in this example. A suction hole 51 is provided around the rotation shaft for the centrifugal pump 31 and communicates with a plurality of drain holes 52 formed on the peripheral side surface of the centrifugal pump 31. The rotation shaft 49 prevents the centrifugal pump 31 from being eccentric.

The water stored in the reservoir 29 is pumped up by a centrifugal pump 31 to form an L-shaped supply / drain pipe 53 shown in FIG.
Through the first and second branch pipes 40 and 41, and sent to the spray unit 11 or the water supply tank 15 side. Therefore, as shown in FIG. 4, a flow path switching valve 32 is provided between the first branch pipe 40 and the second branch pipe 41 which are separated from each other. The flow path switching valve 32 is complementary to the first and second
Since it functions to open and close the flow paths of the branch pipes 40, 41, the direction in which water supplied from the water supply / drain pipe 53 is introduced can be switched. The first and second branch pipes 40 and 41 are connected to substantially J-shaped upper pipes 44 and 45 which form cylindrical cylinder pipes 42 and 42, and the lower pipes 46 and 47 of the cylinder pipe 42 are connected to a water supply / drain pipe 53. Is linked to a part of

The first and second on-off valves 38 and 39 provided on the flow path switching valve 32 are opened and closed by the plunger 13. A piston 36 is fitted on the bobbin 37 constituting the plunger 13 so as to be able to advance and retreat in the axial direction, and triangular pyramid-shaped tips 36a, 36 provided on both sides of the piston 36.
b, first and second on-off valves 38 using elastic rubber or the like
39 are attached. The bobbin 37 on the second on-off valve 39 side is supported by the cylinder cylinder 42 via an auxiliary plate, and the support plate 14 is mounted in a concave ring groove 68 formed on the right side of the piston 36. A compression spring 84 is interposed between 14 and the side plate 171. Accordingly, the first opening / closing valve 38 of the piston 36 is pressed against the opening 23 of the first branch pipe 40 by the elastic force of the compression spring 84. As a result, the flow path of the water communicating between the water supply / drain pipe 53 and the chamber tank 69 is shut off, and in contrast, the second on-off valve 39 is opened.

As shown in FIG. 3, the lower end of the water supply / drainage pipe 53 is attached by using a water guide pipe 56 to form a water supply / drainage system so as to communicate with the drainage hole 52. Also,
A crank-shaped water supply pipe 57 is inserted into the upper pipe 45 of the second branch pipe 41, and the other end is provided with an attachment port 5 of a jet nozzle 58 provided for supplying water to the spraying unit 11 shown in FIG.
9. The spray section 11 shown in FIG. 2 has a cylindrical frame section 60. The frame portion 60 has a cage type configuration in which an upper plate 62 and a lower plate 63 are arranged above and below the sponge 61, and vertical plates 64 are provided at equal intervals between the upper plate 62 and the lower plate 63.
A thick cylindrical sponge 61 is held as a cleaning member in the lattice-shaped frame portion 60. In the cylindrical space formed inside the sponge 61, the upper half of the ejection nozzle 58 is arranged so as to pass through substantially the center of the lower plate 63, and the ejection nozzle 58
Of the end plate 16 is attached and fixed. In the upper half of the ejection nozzle 58, a plurality of ejection holes 75, 75 for ejecting water are perforated along the longitudinal direction of the nozzle, and the water sent from the water supply pipe 57 is substantially discharged from the ejection hole 75. Spouted uniformly. The motor 7 is mounted on a support plate 72 provided substantially at the center of the intake duct 10.
The spray unit 11 is rotated by the motor 71. A plurality of ventilation holes 73, 73 through which air sucked from the air inlet 12 passes are provided on the plate surface of the support plate 72.
Are formed.

The sprayed water adheres to the inner wall surface of the intake duct 10 to form water droplets, and accumulates on the bottom plate 120 of the exhaust duct 9. An opening 76 is formed substantially at the center of the bottom plate 120, and the bottom plate 120 is gently inclined toward the opening 76. Below the opening 76, a cylindrical temporary storage cylinder 77 is integrally formed so as to protrude downward.
Is provided with a drain valve 78. Therefore, the water droplets flow on the inclined surface and are temporarily stored in the storage cylinder 77.

The drain valve 78 includes an umbrella-shaped valve body 79 (valve element) and a support shaft 80 as shown in FIG.
It is attached and fixed. An elastic material such as rubber is used for the valve 79. As shown in the figure, since the drain valve 78 is always in a closed state, a mist of water that has become water droplets is stored here by a predetermined amount, and when the water amount exceeds a certain amount, the valve 79 opens due to its own weight, and the water drops. It falls into the pool part 29 on the side.

As shown in FIG. 5, the water supply tank 15 has a tank body 86 formed of a hard plastic or the like in a substantially box shape (a rectangular parallelepiped), and upper and lower mounting ports 126 and 1.
Water supply cap 8 attached (screwed) to each of 27
7 and a water supply / drain cap 70. At an almost center of the water supply cap 87, an inflow portion 130 for inflowing air is formed. In this example, the inflow portion 13
0, an air vent valve 88 is provided.
As a result, the water supply at the time of water supply is accelerated (when the air vent valve is opened), and the full water detection that is activated when collecting the waste water in the recovery mode described later is performed. An outflow portion 131 for flowing water in the water supply tank 15 is formed substantially at the center of the water supply / drain cap 70.

The air vent valve 88 has an umbrella-shaped valve body 89 (valve element) made of elastic rubber or the like, and the valve 89 is mounted and fixed to a substantially central portion of a sleeve 90.
The leading end of 0 is fitted and fixed to the hollow cylindrical portion 111 of the float 91. In the figure, the valve 89 is located in the concave groove 92 of the hollow cylindrical portion 111. A first compression spring 95 (first biasing means) acting in a direction to close the valve is mounted between a flange 93 provided at the start end of the sleeve 90 and an inner flange 94 of the water supply cap 87. Have been.

On the other hand, between the support plate portion 96 provided substantially at the center of the sleeve 90 and the flange portion 101 (pressed portion) of the pressing shaft 98 inserted into the support plate portion 96, A compression spring 99 (second biasing means) is interposed. The second compression spring 99 is selected to be stronger than the urging force of the first compression spring 95.

On the other hand, a water supply / drainage valve 100 is provided inside the water supply / drainage cap 70. Therefore, the disk-shaped end plate 1 formed near the inner opening of the water supply / drain cap 70 is provided.
An insertion hole 104 is formed at substantially the center of 03, through which the pressing shaft 102 is inserted so as to be able to advance and retreat. End plate 1
A compression spring 108 is mounted between the pressing shaft 102 and the flange 107 of the pressing shaft 102, and an umbrella-shaped valve 106 made of elastic rubber or the like is attached to the tip of the pressing shaft 102. The compression spring 108 allows the valve 106
Is always biased in the valve closing direction. The end plate 103 has a plurality of circulation holes 105 for flowing water in the water supply tank 15.
(Gap) is formed. An O-ring 110 for preventing water leakage is mounted inside the water supply / drain cap 70. Thus, it is possible to prevent water from leaking from the mounting cylinder 22 (FIG. 3) when setting the water supply tank 15.

Next, the operation of the air cleaning device according to the present invention will be described. As described above, the air purifying device 6 has two types of operation modes: a normal mode and a recovery mode. First, the operation of the normal air cleaning device 6 will be described with reference to FIGS.
This will be described with reference to FIG. 6 and 7 show a state in which a power switch (not shown) of the air cleaning device 6 is turned off, the water supply tank 15 is mounted (set) in the storage section 8, and the storage lid 21 is closed. It shows the state that it was. The water is supplied into the water supply tank 15 so that the water is almost full.

As shown in FIG. 7, when the water supply tank 15 is set in the storage section 8, the pressing shaft 102 of the water supply / drain valve 100 is pressed by the boss 123 provided substantially at the center of the mounting cylinder 22. Thereby, the plumbing valve 100
Is opened against the elastic force of the compression spring 108, so that the water in the water supply tank 15 flows into the chamber tank 69 through the flow hole 105 as shown in FIG.

As shown in FIG. 7, a boss 81 (pressing portion) protruding inward is provided substantially at the center of the storage lid 21.
Is provided, when the storage lid 21 is closed as shown in FIG.
Abut. As a result, the pressing shaft 98 is pressed downward with the closing of the storage lid 21. Second compression spring 99
Is stronger than the urging force of the first compression spring 95, so that the second compression spring 99 is not compressed (elastically deformed) even when the pressing shaft 98 is pressed, and descends as it is. Only the compression spring 95 is compressed (pressed) by a predetermined amount.
Therefore, the position of the sleeve 90 is lowered by the amount of compression of the first compression spring 95. Thereby, the air vent valve 88 is opened, and the inside and outside of the tank communicate with each other, and the water supply tank 15 is opened.
Water supply is promoted.

Since the power supply of the air cleaning device 6 is OFF, the flow path switching valve 32 is also OFF as shown in FIG.
The first on-off valve 38 is closed. Therefore,
At this time, the water supplied from the water supply tank 15 stays at the position of the first branch pipe 40 as shown in FIG.

FIG. 8 shows the power switch on state.
As shown in FIG. 9, a current flows through the coil 34 of the flow path switching valve 32, whereby the piston 36 is sucked toward the second branch pipe 41. As a result, the second on-off valve 39 is closed,
The first on-off valve 38 is opened, and the water in the chamber tank 69 flows into the pump casing 50 through the first branch pipe 40, the water supply / drain pipe 53, and the water guide pipe 56 as shown by arrows in FIGS. Will be sent. This water flows from the drain hole 52 of the centrifugal pump 31 to the pump casing 5 through the water absorption hole 51.
The fluid flows into the pool portion 29 from the through-hole (not shown) of No. 0.

As shown in FIG. 8, the amount of water (water level) stored in the reservoir 29 is adjusted by a float switch 85 provided on a concave portion 82 of an end plate 83 which seals the upper surface of the reservoir 29. It is performed by When a predetermined amount of water is stored in the storage portion 29, the water is detected by the float switch 85, and based on this detection output, the power supply to the flow path switching valve 32 is cut off. As a result, the flow path switching valve 32 is turned off, so that the first on-off valve 38 is closed again as shown in FIG. 10, and the supply of water from the water supply tank 15 is stopped. As described above, when the first on-off valve 38 is closed, the second on-off valve 39 is opened, so that the water supply / drain pipe 53 and the water supply pipe 57 are communicated via the second branch pipe 41. You.

The pumping motor 48 is energized in conjunction with the detection of the water level of the float switch 85, and the centrifugal pump 31 rotates, as shown by the arrow in FIG. And water is guided to the ejection nozzle 58 through the water supply pipe 57. The water that has been guided is jet nozzle 5
8 are ejected from the eight ejection holes 75.

As described above, the sponge 61 which is a porous body is accommodated in the spray unit 11. For this reason, the water spouted from the plurality of spout holes 75 passes through the sponge 61 and is subdivided into a large number of fine particles. Further, atomized water atomized by centrifugal force due to the rotation of the spray unit 11 is sprayed in the duct 10, and the cylindrical portion 27 of the intake duct 10 is sprayed.
The inside (around the spray unit 11) is filled with mist-like water. Dust and odor components contained in the air sucked from the air inlet 12 are adsorbed and collected by the atomized water. as a result,
The dirty air is cleaned, and the purified air is exhausted from the exhaust port 23 of the exhaust duct 9.

Such an air flow is forcibly created by the sirocco fan 25 provided in the casing 19 shown in FIG. Since the sirocco fan 25 has a function of sucking external air and a function of generating a forced air circulation route to the inside and outside of the air purifying device 6,
It is possible to promote indoor air purification and purify a wide range of indoor air.

The atomized water adhering to the inner wall of the intake duct 10 is dropped from the intake duct 10 as water droplets. FIG.
A, as shown in FIG.
20 flows into the storage cylinder 77 and is stored. When a predetermined amount or more of water accumulates in the storage cylinder 77, the weight of the water presses the valve 79 surface of the drain valve 78. as a result,
As shown in FIG. 11B, the excess water passes through a small gap created by the elastic deformation of the surface of the valve 79 and accumulates in the pool 29.
Flows into. The water collected in the accumulation part 29 is sent to the spray part 11 again and reused. Although the water used in the spray unit 11 is reused to some extent, the water used for a long period of time becomes dirty and must be periodically disposed of.

In this embodiment, as described above, the water supply tank 15
Also function as a recovery tank for waste liquid recovery. This collection mode will be described with reference to FIGS.

The collecting mode is performed by using a collecting switch (not shown). When the collecting switch is turned on, the flow path switching valve 32 and the pumping motor 48 are energized.
As a result, as shown in FIG. 12, the first on-off valve 38 is opened, and the centrifugal pump 31 is driven to rotate.
Therefore, the wastewater in the reservoir 29 flows from the water supply pipe 56 through the water supply / drainage pipe 53 as shown by the arrow in FIG. The water is introduced into 15.
At this time, since the air vent valve 88 is open, the water can be collected smoothly. As shown in FIG. 13, when water is guided until it comes into contact with the float 91 in the water supply tank 15, the float 91 rises by buoyancy due to wastewater. The second compression spring 99 is pressed upward by the buoyancy of the float 91. Accordingly, the valve 89 is also pushed upward, so that the air vent valve 88 is closed soon, and as a result, the flow path of the inflow section 130 is closed. On the other hand, when the collecting operation proceeds to a state where the water supply tank 15 is full and the flow path of the inflow section 130 is closed, the waste liquid in the accumulation section 29 decreases and the state becomes a drought state. 85 operates to stop the power supply to the flow path switching valve 32 and the pumping motor 48. Then, the pumping operation ends and the first on-off valve 38 is closed. In this case, since the air vent valve 88 is closed as described above, even if the centrifugal pump 31 rotates to collect water in the water supply tank 15, the centrifugal pump 31 cannot discharge water. No water is pumped into 15. On the other hand, the water supply / drain valve 100 is kept open, and a part of the recovered water is supplied to the chamber tank 6.
9, all the collecting operations are completed.

The recovery operation may end before the air vent valve 88 performs the detection operation. In such a case, the float switch 85 (see FIG. 12) is activated when the waste liquid in the reservoir 29 is almost recovered, so that the drive of the pumping motor 48 is stopped based on the detection output of the float switch 85. The collection mode can be ended. Further, the recovery time of the wastewater (slightly longer than the full water recovery time) may be set in advance, and the pumping motor 48 may be stopped after a predetermined time elapses by using a timer or the like to terminate the recovery mode.

As shown in FIG. 12, a drain pipe 115 is provided below the left end of the storage section 8 to reach the pool section 29. Water droplets and the like adhering to the inside of the storage section 8 are collected in the accumulation section 29 through the drain pipe 115.
A drain hole 158 is formed at the bottom of the air cleaning device 6 at a position facing the lower end of the water guide pipe 56, and the pool 29 is formed.
When draining all the water remaining inside, drain plug 159
This is done by removing

In FIG. 13, when the water supply tank 15 is taken out of the storage section 8, the pressing by the boss 123 is released, so that the water supply / drain valve 100 is closed. Also, since the inside of the water supply tank 15 is almost completely filled with waste liquid,
Due to the buoyancy of the float 91, the air vent valve 88 maintains the closed state. Therefore, for example, even if the water supply tank 15 is extremely tilted or turned over, the wastewater in the tank 15 does not leak.

The air purifying device 6 of the present invention is provided with a function for preventing the stored water from leaking into the device when the device falls down. For example, as shown in FIG.
Falls down, the lower surface of the drain valve 78 is
Pressed by the water stored inside. As a result, the drain valve 78 is completely closed by the water pressure of the water, so that leakage (backflow) of water through the storage cylinder 77 into the inside of the device 6 is prevented. At this time, the air in the water supply tank 15 does not leak because the air release valve 88 (see FIG. 13) is also closed by the water in the water supply tank 15.

As described above, in the case of the present invention, when the inside of the water supply tank 15 becomes almost full due to the waste liquid, the air vent valve 88 is automatically closed. Thus, the collection of the waste liquid in the water supply tank 15 is stopped. Air vent valve 8
Since the valve 8 is closed by the waste liquid, a circuit board or the like for valve closing control becomes unnecessary. In addition, since the water supply tank 15 has a function as a tank for collecting waste liquid as described above, the water supply tank 15 can also be used as a collection tank, and cost can be reduced by reducing the number of parts.

In this embodiment, the present invention is applied to an air purifier, but the present invention is very suitable for use in a humidifier, a cooler, an oil stove, or the like.

FIG. 15 shows a negative ion generator 70 according to the present invention. The negative ion generator 70 of this example focuses on atomized water (fine water droplets) generated by the centrifugal force of the spraying unit 11 as a rotating body, and the structure itself is the same as the above-described air cleaning device. .

The operation of the negative ion generator 70 will be described with reference to FIGS. When the power switch (the same as the air cleaning device) of the negative ion generator 70 is turned on, the water supply tank 15 (FIG. 10)
The water supplied from the reservoir 5 is supplied from the reservoir 29 to the water pipe 5.
The water flows through the pipe 6 and the water supply / drain pipe 53, and is guided from the water supply pipe 57 to the jet nozzle 58 via the second branch pipe 41. The introduced water is supplied to the plurality of ejection holes 75 of the ejection nozzle 58.
And is scattered as mist water around the inside of the inner cylindrical portion 27 of the intake duct 10 to pass through the sponge 61 rotating at high speed.

As is well known, for example, mist purified water scattered around a waterhole contains many negative ions due to the so-called "Lenard effect". Therefore, even in the case of the negative ion generator 70 of the present invention, a large amount of negative ions are contained in the clean air exhausted into the room due to the “Lenard effect”, and the negative ions reduce the calming effect and the recovery from fatigue. Many effects on the human body such as promotion can be expected. Other effects of negative ions include enhancing cardiopulmonary function to regulate blood pressure and respiration, lowering blood sugar levels, and healing effects on burns. The negative ion generator of the present invention provides a healthy and comfortable indoor environment. Can be realized. The effect of promoting the growth of living things (plants) can also be improved.

The negative ion is, for example, a high voltage (about 30
(00 V or more). However, in this case, power consumption is large and harmful substances such as ozone are generated at the same time, which poses a problem in environmental protection. In this example, since the water is used as described above, and this water is atomized by the spraying unit 11, negative ions can be generated. No harmful substances are generated.

As for the negative ions, the finer the water droplets scattered, the more negative ions can be generated. Therefore, more negative ions can be generated only by rotating the spray unit 11 at a high speed, so that the negative ion effect can be relatively easily enhanced. Also in the present embodiment, the water supply tank 15 has a full-water detecting function and is used for water supply. In addition, the wastewater in the reservoir 29 can be collected, so that the cost can be reduced.

[0051]

As described above, the air purifying apparatus of the present invention sprays a liquid such as water and brings the sprayed liquid into contact with the air sucked from the outside, thereby reducing the odor contained in the air. And an air purifier that removes dust and the like, having a storage tank for supplying liquid,
The storage tank has an outflow portion for flowing out the liquid in the storage tank, and an inflow portion for flowing air into the storage tank, and the inflow portion has an on-off valve for opening and closing the inflow portion. The on-off valve is urged in the closing direction by the first urging means, and is also urged in the closing direction by buoyancy generated by the liquid stored in the storage tank.

The negative ion generator is a negative ion generator that generates negative ions by spraying a liquid such as water as fine water droplets, and has a storage tank for supplying the liquid. Has an outflow portion for flowing out the liquid in the storage tank, and an inflow portion for flowing air into the storage tank, and the inflow portion is provided with an on-off valve for opening and closing the inflow portion. Is urged in the closing direction by the first urging means,
It is configured to be urged in the closing direction by buoyancy generated by the liquid stored in the storage tank.

Therefore, according to the air purifying apparatus and the negative ion generating apparatus of the present invention, when the inside of the water supply tank becomes almost full due to the waste liquid, the air vent valve is automatically closed. Thus, the collection of the waste liquid in the water supply tank is prevented, and it is possible to detect that the water supply tank is full. Since the air vent valve is configured to be closed by a liquid such as water, a circuit board or the like is not required. In addition, since the water supply tank has a function as a tank for collecting waste liquid, a collection tank is not required. Therefore, cost can be reduced by reducing the number of parts.

[Brief description of the drawings]

FIG. 1 is an embodiment of an air cleaning device according to the present invention.

FIG. 2 is an enlarged sectional view of a left part of FIG.

FIG. 3 is an enlarged sectional view of a right part of FIG.

FIG. 4 is an enlarged sectional view of a main part of FIG.

FIG. 5 is a sectional view showing a water supply tank.

FIG. 6 is a view similar to FIG. 3, showing an operation at the time of setting a water supply tank.

FIG. 7 is an enlarged sectional view of a main part of FIG. 6;

FIG. 8 is a view similar to FIG. 6, showing an operation when the power is turned on.

9 is an enlarged sectional view of a main part of FIG. 8;

FIG. 10 is a cross-sectional view showing a normal operation of the air cleaning device.

11A is an enlarged sectional view of a main part, showing A in a closed state of a drain valve, and B showing an opened state of a drain valve. FIG.

FIG. 12 is a diagram showing a wastewater recovery operation of the air cleaning device.

FIG. 13 is an enlarged sectional view of a main part of FIG.

FIG. 14 is an enlarged sectional view of a main part showing the operation of the air cleaning device when it falls down.

FIG. 15 is an embodiment of a negative ion generator according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Collection tank 6 Air purifier 8 Storage part 9 Exhaust duct 10 Intake duct 11 Spray part 15 Water supply tank 29 Reservoir part 31 Centrifugal pump 32 Flow path switching valve 53 Supply / drainage pipe 57 Water supply pipe 58 Spout nozzle 78 Drainage valve 88 Air release valve 100 Supply / drainage valve

Claims (18)

[Claims] 1. A liquid such as water is sprayed, and the sprayed liquid is brought into contact with air taken in from the outside, whereby
An air purifying device for removing odor, dust, and the like contained in the air, comprising a storage tank for supplying the liquid, wherein the storage tank flows out the liquid in the storage tank. And an inflow portion for inflowing air into the storage tank. The inflow portion includes an on-off valve for opening and closing the inflow portion, and the on-off valve is a first valve. The air purifying device is urged in the closing direction by the urging means and urged in the closing direction by buoyancy generated by the liquid stored in the storage tank. 2. A rotating body having a cylindrical shape, wherein the liquid is supplied from inside or above the rotating body, and is scattered as fine water droplets by centrifugal force caused by rotation of the rotating body. 2. The air purifying apparatus according to 1. 3. The air purifying apparatus according to claim 1, further comprising a floating portion that generates buoyancy by the liquid stored in the storage tank. 4. The first on-off valve is urged in an opening direction to open the first valve.
4. The apparatus according to claim 3, further comprising a second urging unit that is compressed when the buoyancy is generated in the floating portion by the liquid stored in the storage tank in a state where the urging unit is contracted. Air purifier. 5. A liquid such as water is sprayed, and the sprayed liquid is brought into contact with air taken in from the outside, whereby
An air purifying device for removing odor, dust, and the like contained in the air, comprising a storage tank for supplying the liquid, wherein the storage tank flows out the liquid in the storage tank. And an inflow portion for inflowing air into the storage tank. The inflow portion includes an on-off valve for opening and closing the inflow portion, and the on-off valve is always closed. First biasing means for biasing;
One end is fixed to the on-off valve, and the second urging means is set to be stronger than the urging force of the first urging means and is compressed by the buoyancy of the liquid stored in the storage tank. Characterized air purifier. 6. A rotating body having a cylindrical shape, wherein the liquid is supplied from inside or above the rotating body, and is scattered as fine water droplets by centrifugal force due to rotation of the rotating body. 6. The air purifying apparatus according to 5. 7. A pressed portion is provided at the other end of the second biasing device, and when the pressed portion is pressed, the first biasing device is compressed and the on-off valve is opened. 7. The air purifying apparatus according to claim 5, wherein the valve is opened. 8. The air purifying apparatus according to claim 7, further comprising a storage portion for storing the storage tank, wherein the storage portion includes a pressing portion for pressing the pressed portion. 9. The air purifying apparatus according to claim 8, wherein the storage section has a lid, and the pressing section is provided on the lid. 10. A negative ion generator for generating negative ions by spraying a liquid such as water as fine water droplets, comprising a storage tank for supplying the liquid, wherein the storage tank is a storage tank. An outlet for flowing out the liquid therein, and an inlet for flowing air into the storage tank, wherein the inlet has an on-off valve for opening and closing the inflow, and the on-off valve A negative ion generator which is urged in a closing direction by first urging means and urged in a closing direction by buoyancy generated by a liquid stored in the storage tank. 11. A rotating body having a cylindrical shape, wherein the liquid is supplied from inside or above the rotating body, and is scattered as fine water droplets by centrifugal force caused by rotation of the rotating body. 10. The negative ion generator according to 10. 12. The negative ion generator according to claim 10, further comprising a floating portion that generates buoyancy by the liquid stored in the storage tank. 13. When the on-off valve is urged in the opening direction, the first urging means contracts, and the liquid stored in the storage tank in a state where the first urging means contracts. 13. The negative ion generator according to claim 12, further comprising a second urging unit that is compressed when buoyancy is generated in the floating portion. 14. A negative ion generator for generating negative ions by spraying a liquid such as water as fine water droplets, comprising a storage tank for supplying the liquid, wherein the storage tank is a storage tank. An inflow portion for inflowing liquid into the storage tank, and an inflow portion for inflowing air into the storage tank. The inflow portion includes an on-off valve for opening and closing the inflow portion, First biasing means for biasing the valve in the normally closed direction;
One end is fixed to the on-off valve, the second urging means is set to be stronger than the urging force of the first urging means, and is compressed by buoyancy of the liquid stored in the storage tank; The negative ion generator characterized by having. 15. A rotating body having a cylindrical shape, wherein the liquid is supplied from inside or above the rotating body, and is scattered as fine water droplets by centrifugal force caused by rotation of the rotating body. 15. The negative ion generator according to 14. 16. A pressed part is provided at the other end of the second biasing means, and by pressing the pressed part, the first biasing means is compressed and the on-off valve is opened. 16. The valve is opened.
The described negative ion generator. 17. The negative ion generator according to claim 16, further comprising a storage portion for storing the storage tank, wherein the storage portion includes a pressing portion for pressing the pressed portion. 18. The negative ion generator according to claim 17, wherein the storage section has a lid, and the pressing section is provided on the lid.