JP2003239900A - Air purifier and blade body for air purifying - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air purifier and a blade body for air purifying in which a weight of the whole blade body is kept roughly balanced, and the blade body is simply and easily replaced. <P>SOLUTION: The blade body 8 of a blower part 3 composing the air purifier 1 is rotated and stopped based on a detection signal outputted from a fouling detection sensor 13. Clean air purified and filtered by an air purifying filter 11 and negative ion generated by tourmaline microparticles 12 are discharged in a desired direction to reduce amount of positive ion in surroundings and human body. A front surface cover 5 of the blower part 3 is removed from the back surface cover 4 and a whole body of the blade body 8 having the air purifying filter 11 is removed from a rotating shaft 6b of a motor 6a. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to, for example, cigarette smoke and odor, pet odor, cooking odor, toilet odor, body odor, odor of adhesives and interior parts, exhaust gas, pollen, mold fungi, germs, carcass of mites, The present invention relates to an air purifying device and an air purifying blade used when removing pet hair and cleaning the air.

[0002]

2. Description of the Related Art Conventionally, as the air cleaning device of the above-mentioned example,
For example, a propeller fan in which a sheet-shaped deodorizing filter is attached to an opening formed in a plurality of blades (Japanese Patent Laid-Open No. 2000-2000)
-314393), a cover for a fan that covers each blade of the blade with a bag-shaped activated carbon filter cover (Japanese Utility Model Publication No. 63-19095), and the activated carbon on each blade of the blade. Deodorizer worn (Shokai 58-15)
No. 6521) and a paint in which tourmaline powder is mixed, is applied to each blade of the blade body (Actual Kaihei 11-311200).
Issue gazette).

[0003]

However, the mounting position of the deodorizing filter of the above-mentioned example, the covering position of the blade cover,
Since there may be a gap between the activated carbon sticking position and a difference in the amount of paint applied, it should be installed evenly on each blade of the propeller fan or evenly covered and stuck on each blade of the blade body. It is difficult to wear and apply, and the weight balance of each blade becomes uneven, so when the blade body is rotated at high speed,
Since the center of rotation of the blade body is easily shaken, noise at the time of rotation becomes large, and the blast airflow is disturbed, so that a predetermined air volume cannot be obtained. In addition, since the load applied to the rotary shaft is large and causes damage or failure, there is a problem that durability is reduced. Further, there is a problem that it takes time and labor to replace the blade cover and the activated carbon and to apply the paint.

In view of the above problems, the present invention is capable of keeping the weight balance of the entire blade body substantially even by providing the entire blade body to which the air cleaning filter is attached detachably with respect to the rotary shaft of the drive unit. It is an object of the present invention to provide an air cleaning device and an air cleaning blade body that can be replaced easily and easily.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a blade body having a plurality of blades is fixed to a rotary shaft of a drive unit, and air is purified by blowing air from the blade unit rotated by the drive force of the drive unit. A cleaning device, wherein an air cleaning filter formed to have a size that covers the opening is attached to an opening formed in the blade of the blade, and the blade having the air cleaning filter is attached to the opening. The air purifying device is detachably attached to the rotary shaft of the drive unit that rotates the blade body.

The above-mentioned air cleaning filter is a sheet-shaped non-woven fabric, woven fabric, or entangled body formed of yarns of chemical fibers or natural fibers to which ion generators such as tourmaline (tourmaline), pine ore, and charcoal adhere. Alternatively, it may be composed of a porous material containing an ion generator. In other words, when the air cleaning capacity of the air cleaning filter attached to the blade decreases, the entire blade that has the air cleaning filter attached is removed from the rotary shaft of the drive unit, and an unused air cleaning filter with a predetermined air cleaning capacity is used. Attach the blade with the air purifying filter of 1 to the rotary shaft of the drive unit.

As an embodiment, the air cleaning device and the blade body can be used in a blower device for rotating and blowing the blade body of, for example, a large blower, a commercial fan, a commercial fan, a household fan, and the like. . Further, a blade body for air cleaning is provided at the center of rotation of the blade body having a plurality of blades with a hole into which a rotation shaft of a drive unit for rotating the blade body is inserted and fixed, and the blade of the blade body is provided. An air purifying filter having a size that covers the opening can be attached to the formed opening.

The air cleaning filter can be constructed by using an ion generator (for example, tourmaline, pine ore, charcoal, etc.) that generates ions suitable for air cleaning. Further, it is possible to provide an ion generating means (for example, a device for generating negative ions or positive ions) for generating ions suitable for air cleaning.

Further, a dirt condition detecting means (for example, an odor sensor, a dust sensor, or the like) for detecting the dirt condition of the air.
Pollen sensor, etc.) and the detection information output from the dirt condition detection means, and it is determined whether the air dirt condition is below a reference value or above a reference value, and it is determined to be below the reference value. At this time, a control unit (for example, a program stored in the control device and the CPU) that drives the drive unit can be provided.

Further, a power cutoff means (for example, a limit switch, a pressure sensitive switch, a photoelectric sensor, or the like) for cutting off the power supply to the drive section when a cover (for example, a front cover and a rear cover) surrounding the blade is opened. A cutoff switch). Further, replacement time display means for displaying the replacement time of the air cleaning filter in a visually identifiable color (for example, a dye or a sheet-like member that changes its color gradually or stepwise in response to a decrease in the air cleaning capacity). A replacement time indicator) can be provided.

[0011]

According to the present invention, since the entire blade body to which the air cleaning filter is attached is attached and detached and replaced, the weight balance of the entire blade body can be maintained substantially even, the noise during rotation is small, and it is desirable. It is possible to obtain a stable air cleaning power, reduce the load applied to the rotary shaft of the drive unit, and improve the durability. In addition, since the entire blade body is collectively replaced, the labor and work of replacing the air cleaning filters one by one can be omitted, and the replacement work can be easily and easily performed.

Further, while the air is cleaned and filtered by the air cleaning filter attached to each blade of the blade body, the ions generated by the ion generator and the ion generating means are emitted in the blowing direction, so that the desired place or Air in the range can be efficiently cleaned and filtered, and the number of positively charged ions is reduced, and the amount of positive ions in the surroundings and the human body can be reduced in a short time. For example, deodorant effect, antibacterial effect, blood purification , Mental stability, adjustment of independence, strengthening of immunity, relief of fatigue, improvement of metabolism, stress relief,
Various ionic effects such as refreshing feeling and cleaning effects are synergistically obtained.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. The drawings show a fan-type air cleaning device and an air cleaning blade used for efficiently cleaning air in a desired place or range, and in FIG. 1 and FIG.
The air cleaning device 1 includes a support base 2 having a substantially trapezoidal shape when viewed from the side, which is installed upright with respect to an installation location such as a floor or the ground, and a blower unit 3 that blows air in a desired direction. To be done.

In the above-mentioned support base 2, a support portion 2a formed in a substantially conical cylindrical shape when viewed from the side is erected at a substantially upper center portion of a pedestal portion 2b which is formed in a substantially disc shape when viewed from the top and has a large contact area. A support 2c, which is installed in the support 2a and is vertically adjustable to a desired height, drives a blower 3 to be described later via a swinging mechanism 2d that is rotatable vertically and horizontally. It is connected to the lower surface of the part 6. Further, the swing mechanism 2d may be provided so as to be rotatable in a desired angle and direction by, for example, driving force of a motor or manual force.

In order to set a blower time and a cleaning time, and a power switch 2e for energizing and interrupting the current supplied from the power source to the drive unit 6 to drive and stop the swing motion of the swing mechanism unit. The timer switch 2f and the changeover switch 2g for switching the wind power and cleaning power (rotational speed of the drive unit 6) between strong, medium and weak are arranged on the front upper surface (operation surface) of the pedestal 2b. A power cord 2h with a plug that is connected to a power source (for example, a general household or industrial outlet) is connected to a rear portion or a side portion of the pedestal portion 2b. Further, a cord accommodating portion (not shown) for accommodating the power cord 2f can be provided in the rear portion or side portion of the pedestal portion 2b.

The above switches 2e to 2g are controlled to be driven or stopped by a control means such as an electric circuit or an IC circuit built in the supporting portion 2. Also, switch 2
Although e to 2g are dial type (rotary type), for example, an electrostatic sensing type switch, a pressure sensitive type switch, a keyboard type switch,
It may be configured by a lever switch, a slide switch, or the like, or may be configured by combining various switches.

In addition, the blowing force of the blowing unit 3 (strong, medium,
It is also possible to control all operations such as weak), air blowing time, and swinging motion based on a signal transmitted from, for example, a wireless (infrared) remote controller (not shown).

As another example of the supporting means in place of the above-mentioned supporting base 2, for example, a tripod-type supporting leg is connected to the driving portion 6 via a swinging mechanism 2d, and is movable up and down with respect to the supporting leg. It is also possible to vertically adjust the blower unit 3 to a desired height by connecting a support rod attached to the drive unit 6 to the drive unit 6.

The blower unit 3 has a net-like rear cover 4 and front cover 5 formed of metal filaments in a substantially circular shape when viewed from the front and in a bowl shape when viewed from the side, and the above-mentioned support columns. A drive unit 6 which is swingably connected to the upper end of 2c,
A blade shaft 8 protruding from a rotary shaft 6b of a motor 6a incorporated in the drive unit 6 to the front surface side central portion of the rear cover 4 and detachably attached to the rotary shaft 6b, and a front surface central portion of the blade member 8. And a cap 7 that is screwed onto the end of the rotating shaft 6b that projects.

That is, the rear cover 4 is attached to the front surface of the drive unit 6, the rotary shaft 6b of the motor 6a is inserted through the center of rotation of the blade body 8, and the tip end of the rotary shaft 6b protruding to the center of the blade body 8 on the front side. After the cap 7 is screwed and tightened and fixed, the rear surface cover 4 is fitted into the front surface cover 5 and the peripheral edges facing each other are fixed by the stoppers 4a.

As shown in FIG. 3, FIG. 4 and FIG. 5, the above-mentioned blade body 8 has blades 9 having a curved surface shape and an inclination angle that are blown toward the front, with respect to the outer peripheral surface of the shaft portion 10. A plurality of blades 9 are formed at a predetermined interval in the circumferential direction around the rotation center of the shaft portion 10 (three in the embodiment). Moreover, a hole 9a into which the rotary shaft 6b of the motor 6a built in the drive unit 6 is inserted is formed so as to penetrate axially with respect to the center of rotation of the shaft 10. In addition, the screw attached to the shaft portion 10,
The outer peripheral surface of the rotating shaft 6b may be contacted and fixed by tightening, or the rotating shaft 6b and the hole 9a may be formed in a polygonal cross-sectional shape that matches each other to transmit power.

A sheet-like air cleaning filter 11
An opening 9a having a size and shape substantially corresponding to is formed on the air blowing surface of the central portion of the blade 9, and the opening 9a is formed.
The step portion 9b formed along the front surface side peripheral portion (or the front surface side peripheral portion) has a size and a shape that are substantially the same as the outer peripheral portion of the air cleaning filter 11, and is substantially the same as the thickness of the air cleaning filter 11. Alternatively, it is formed to a depth equal to or more than the same.

Further, the above-mentioned air cleaning filter 11 is
As shown in FIGS. 6 and 7, the opening 9a formed in the blade 9
May be detachably attached to the back side peripheral edge of
The same parts as those in the above-described configuration are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 8, the above-mentioned air cleaning filter 11 is made of tourmaline fine powder 12 (tourmaline) obtained by crushing tourmaline (tourmaline) or a liquid containing the tourmaline fine powder 12 mixed therein. , A size and shape such that the threads are evenly attached to the threads twisted with a material such as synthetic resin chemical fiber or natural fiber, and the threads are intertwined with each other to cover the entire opening 9a of the blade 9. It is a sheet-shaped nonwoven fabric formed in.

Further, instead of the tourmaline (tourmaline) described above, a negative ion generating substance such as pine ore or charcoal may be used. Moreover, as another example of the air cleaning filter 11, for example, a woven fabric knitted with threads to which the tourmaline fine powder 12 is attached, a entangled body formed by entwining a large number of threads in a cotton shape, or the like may be used.

Further, the air cleaning filter 11 has the blade 9
The holes 9c attached to the front surface side peripheral portion or the back surface peripheral edge portion of the opening 9a formed in the above, and formed in the inner peripheral edge portion of the step portion 9b ...
, Which are elastically displaceable between a tightened state in which insertion is allowed and an expanded state in which they cannot be pulled out and are fixed, are attached to the outer peripheral edge portion of the air cleaning filter 11 at predetermined intervals. ing.

That is, the stop pins 11c ... Are inserted into the holes 9c ... and fixed, and the air cleaning filter 11 is attached so that the entire opening 9a of the blade 9 is covered, and the front surface or the back surface of the blade 9 is attached. Install it so that it will be approximately flat. Further, the air cleaning filter 11 may be detachably attached with, for example, a surface fastener or a double-sided adhesive tape, or may be integrally fixed with, for example, an adhesive, an adhesive material, a clasp, or the like.

In addition, as shown in FIG. 9, for example, the air cleaning filter 11 can be formed into a porous body such as a sea surface body by using a synthetic resin mixed with tourmaline fine powder 12 and can be formed at the time of blowing air. When the air passes through the holes 11a formed in the air cleaning filter 11, suspended matter in the air (for example, dust or cigarette smoke, pollen, mold spores, carcass of mites, etc.) is adsorbed to the holes 11a. Then, the negative ions generated by the tourmaline fine powder 12 ... Are released into the air.

FIG. 10 shows a block diagram of the control circuit of the air purifying apparatus 1. The control apparatus 15 has a CPU, a ROM, and an RA.
M is built in, and the CPU follows the program stored in the ROM (or PROM), and swings the mechanism 2d, the power switch 2e, the timer switch 2f, the changeover switch 2g, the motor 6a, and the dirt detection sensor. 13,
Power cutoff switch 14 and ion generator 16 described later
Control the drive and stop of the. The RAM stores detection information output from the dirt detection sensor 13 and reference information serving as a determination reference.

When the power switch 2e is turned on, the dirt detection sensor 13 provided in the blower unit 3 detects the smell and dirt of the surrounding air and the amount of suspended matter floating in the air. Is output to the controller 15. Also,
The dirt detection sensor 13 is, for example, a support portion 2a of the support base 2.
Alternatively, it may be provided on the pedestal portion 2b, the rear cover 4 or the front cover 5 of the blower unit 3.

The control device 15 compares and calculates the detection information output from the dirt detection sensor 13 and the comparison information stored in advance, and the odor and the degree of dirt of the surrounding air are below the reference value or above the reference value. Is determined. If the air is dirty and it is determined that the value is equal to or less than the reference value, the motor 6a of the drive unit 6 is driven to rotate the blade body 8 at a predetermined speed at a high speed. On the other hand, when it is determined that the air is clean and is equal to or higher than the reference value, the motor 6a of the drive unit 6 is not stopped or driven, and the drivable standby state is maintained.

In addition, the power cutoff switch 14 provided at the edge of the front cover 5 and the rear cover 4 facing each other is
The switch main body 14a is attached to the inner peripheral edge of the front cover 5, and the pressing portion 14c is attached to the inner peripheral edge of the front cover 5 so as to face the operation portion 14b of the switch main body 14a. When removed,
From the operation portion 14b of the power cutoff switch 14 to the pressing portion 14c
Are separated from each other, the operation portion 14b returns to the OFF position (protruding position), and a signal at the time of the OFF operation is output to the control device 15. The controller 15 controls the motor 6 based on an electric signal output when the power cutoff switch 14 is turned off.
The power to the a and the dirt detection sensor 13 is cut off.

On the other hand, when the front cover 5 is attached to the rear cover 4, the operating portion 14b of the power cutoff switch 14 is pushed back to the ON position (immersion position) by the pressing portion 14c,
The signal at the time of the ON operation is output to the control device 15. The controller 15 energizes the motor 6a and the dirt detection sensor 13 based on the electric signal output when the power cutoff switch 14 is turned on.

The illustrated embodiment is configured as described above, and the cleaning operation by the air cleaning device 1 will be described below.

First, as shown in FIG. 1, the power switch 2
By turning on e, the odor and the degree of dirt of the surrounding air are detected by the dirt detection sensor 13, and the detection information is output to the control device 15. The control device 15 compares and calculates the detection information output from the dirt detection sensor 13 and the comparison information stored in advance, and determines whether the odor or the degree of dirt in the air is less than or equal to the reference value or more than the reference value. To judge.

If it is determined that the amount of suspended solids in the air is large and the odor or the degree of contamination of the air is below the reference value, the current supplied from the power source is supplied to the drive unit 6. Then, the blade 8 is rotated by the driving force of the motor 6a to blow air from the rear to the front, and, for example, dust, dust, cigarette smoke, pollen, fungi, germs, dead mites, pet hair Etc. suspended in the air are separated and removed by the air cleaning filter 11 attached to the blades 9 of the blade body 8 to clean and filter the clean air in the forward direction (for example, in desired directions of up and down and left and right). ), The amount of floating substances charged with positive ions is reduced, and the amount of positive ions in the surroundings and the human body is reduced. Further, the switches 2f and 2g are operated to swing the blower unit 3 vertically and horizontally to blow air toward a desired place or range for a preset time.

While the air is cleaned and filtered by the air cleaning filter 11 attached to the blades 9 of the blade body 8,
Negative ions generated by the tourmaline fine particles 12 of the air cleaning filter 11 when the blade body 8 rotates and contact with air are discharged toward the air blowing direction by the air blowing operation and the swinging operation of the air blowing unit 3, so Positive ions in the human body decrease in a short time.

On the other hand, when the amount of suspended solids in the surrounding air is small and it is determined that the degree of contamination of the air is equal to or higher than the reference value, the drive unit 6 is turned off or stopped, and the blower unit 3 is turned off. Stop the blowing operation and clean filtration. Alternatively, the motor 6a is not stopped or driven and the drivable standby state is maintained.

Next, when the air cleaning capacity of the air cleaning filter 11 is lowered, as shown in FIG. 2, the stoppers 4a ...
When the front cover 5 of the blower unit 3 is removed from the rear cover 4 by releasing the fixing by the, the power cutoff switch 14 turns off.
F is operated. The control device 15 includes a power cutoff switch 14
Since the electric power to the motor 6a and the dirt detection sensor 13 is cut off based on the electric signal output from the fan 6, the blade body 8 and the air cleaning filter 11 are replaced, and the blower unit 3 is used.
It is possible to reliably prevent the motor 6a from malfunctioning when the dirt is removed. Subsequently, the fixation by the cap 7 is released, the entire blade body 8 is removed from the rotary shaft 6b of the motor 6a, and the replacement work is performed. Usually, it is preferable to disconnect the power cord 2h from the power source or turn off the power switch 2e.

Next, the blade body 8 to which an unused air cleaning filter 11 having a predetermined air cleaning capacity is mounted is fixed to the rotary shaft 6b of the motor 6a by the cap 7, and then the front cover 5 is fixed. Is attached to the rear surface cover 4 and is integrally fixed by the stoppers 4a ..., The power cutoff switch 14 is turned on. The control device 15
Since the motor 6a and the dirt detection sensor 13 are energized based on the electric signal output from the power cutoff switch 14, the dirt detection sensor 13 detects or switches 2
A drivable standby state is maintained until f and 2g are operated.

As described above, the air cleaning filter 11 ...
Since the entire blade body 8 mounted with is attached and detached and replaced, the weight balance of the entire blade body 8 can be kept substantially uniform around the center of rotation of the rotary shaft 6b, and the noise during rotation is small, and the desired cleaning is achieved. It is possible to obtain a stable force, reduce the load applied to the rotary shaft 6b of the drive unit 6, and improve durability. In addition, since the entire blade body 8 is collectively replaced, the labor and work of replacing the air cleaning filters 11 one by one can be omitted, and the replacement work can be easily and easily performed.

While the air is cleaned and filtered by the air cleaning filter 11 mounted on the blades 9 of the blade body 8,
Since the negative ions generated by the tourmaline fine particles 12 ... Are emitted toward the air blowing direction, the air in a desired place or range can be efficiently cleaned and filtered, and the number of positive ion charged elements is reduced, and the surroundings and the human body are reduced. The amount of positive ions in the product will decrease in a short period of time, and the negative ions, for example, will cause odor components such as cigarette smoke and odors, pet odors, cooking odors, toilet odors, body odors, exhaust gas, and odors of adhesives and interior parts. Not only is it decomposed and deodorized, but it also has various ionic effects such as antibacterial effect, blood purification, mental stability, autonomic nerve regulation, immunity enhancement, fatigue relief, metabolism improvement, stress relief, and refreshing feeling. A synergistic cleaning effect is obtained.

When the air is contaminated below the reference value, the controller 15 determines the degree of contamination of the air based on the detection information output from the contamination detection sensor 13, and when it is determined that the air is below the reference value. Since the motor 6a of the drive unit 6 is driven, the power consumption is low and the cost can be saved.

When the front cover 5 of the blower unit 3 is opened, the drive unit 6 is energized by the power cutoff switch 14
Therefore, when the blade body 8 and the air cleaning filter 11 are replaced, the motor 6a of the drive unit 6 can be reliably prevented from malfunctioning.

In addition, the blade body of the blower already used is
It can be used as a purifier having an air purifying function and an ion generating function only by replacing the blade body 8 with the air purifying filter 11 attached, and it is necessary to manufacture a purifier for air cleaning and ion generating. Therefore, the production cost can be reduced.

FIG. 11 shows another embodiment of the air cleaning apparatus 1 provided with the ion generator 16 for generating negative ions. For example, the ion generator 16 such as a negative ion generator or a plasma ion generator is shown. , Blower section 3
Since it is attached to the central portion on the front surface side of the rear cover 4 and clean air filtered by the air cleaning filter 11 and negative ions generated by the ion generator 16 are emitted in a desired direction, The same operation and effect as those of the embodiment can be achieved.

Further, by using the air purifying filter 11 for generating negative ions and the ion generator 16 for generating negative ions together, the amount of negative ions released becomes larger than that when either one is used. The effect of is greatly improved. Further, the above-described ion generator 16 may be provided, for example, on the support portion 2a or the pedestal portion 2b of the support base 2, the rear cover 4 or the front cover 5 of the blower unit 3.

In addition, the ion generator 16 may be composed of, for example, a positive ion generator for generating positive ions, and the positive ions are used for decomposing odorous substances, sterilizing and antibacterial fungi and other bacteria. The effect can be obtained. It can also be used together with the ion generator 16 that generates negative ions.

FIG. 12 shows another embodiment of the blade body 8 equipped with the air purifying filter 11 whose color changes substantially corresponding to the deterioration of the air purifying ability.
1 is dyed or colored with a dye (for example, a natural dye or a synthetic dye) that changes its color gradually or gradually in response to a decrease in air cleaning ability. In other words, it is possible to check the change in the color of the air cleaning filter 11 attached to the blades 9 of the blade body 8 (for example, the color becomes darker or lighter) by visual confirmation, and the air cleaning ability may be reduced or the replacement time may be changed. It is possible to accurately grasp the arrival or the nearness, and the replacement can be appropriately and quickly performed.

Further, a paint whose color changes substantially corresponding to the deterioration of the air cleaning ability is applied to the air cleaning filter 11, or the paint or dye is applied, for example, to the support portion 2 of the support base 2.
a or the pedestal portion 2b, the rear cover 4 or the front cover 5 of the blower 3 may be applied.

In addition, as another example of the replacement timing display means which replaces the above-mentioned dyes and paints, a sheet-shaped replacement timing display body whose color changes substantially corresponding to the deterioration of the air cleaning capacity is provided. It may be attached to the body 8 itself, the support base 2, or the blower unit 3.

In the correspondence between the constitution of the present invention and the above-mentioned embodiment, the ion generator of the present invention corresponds to the tourmaline fine particles 12 of the embodiment and a substance generating negative ions such as pine ore and charcoal. Similarly, the ion generating means corresponds to the ion generating device 16 that generates negative ions, the plasma ion generating device, and the like, and the dirt condition detecting means corresponds to the dirt detecting sensor 13, the odor sensor, the dust sensor, the pollen sensor, and the like. The control means corresponds to the programs stored in the control device 15 and the CPU, the covers correspond to the rear cover 4 and the front cover 5, and the power cutoff means is the power cutoff switch 14, the limit switch, the pressure sensitive switch, Corresponding to a photoelectric sensor or the like, the replacement time display means is a dye that changes color gradually or gradually in response to a decrease in air cleaning capacity. , Also corresponding to the sheet-like replacement time display member, the invention is not limited only to the above-mentioned arrangement of the embodiment.

The configurations of the air cleaning device 1 and the blade body 8 described above can be applied to a blower device for rotating and blowing the blade body of, for example, a large-sized blower, a commercial fan, a commercial fan, or a domestic fan. You can In addition, the blower unit 3 described above
A fixed portion (not shown) such as a wall portion, a pillar portion, or a ceiling portion.
It can also be fixed directly to.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic structure of an air cleaning device.

FIG. 2 is a side view of the blower unit showing a state where the blade body and the front cover are removed.

FIG. 3 is a perspective view of a blade body showing how to install an air cleaning filter.

FIG. 4 is a plan view showing a state in which an air cleaning filter is attached to the surface of the blade body.

5 is a vertical cross-sectional side view showing how to install the air cleaning filter of FIG.

FIG. 6 is a plan view showing a state in which an air cleaning filter is attached to the surface of the blade body.

FIG. 7 is a vertical sectional side view showing how to install the air cleaning filter of FIG.

FIG. 8 is a cross-sectional view showing a sheet-shaped air cleaning filter.

FIG. 9 is a cross-sectional view showing a porous air cleaning filter.

FIG. 10 is a control circuit block diagram of the air cleaning device.

FIG. 11 is a side view of an air blower showing an air purifying device including an ion generating device.

FIG. 12 is a plan view showing a replacement time display state by the air cleaning filter.

[Explanation of symbols]

1 ... Air purifier 2 ... Support stand 3 ... Blower 4 ... Rear cover 5 ... Front cover 6 ... Drive unit 6b ... Rotation axis 7 ... Cap 8 ... feather 9 ... feather 9a ... opening 11 ... Air purifying filter 12 ... Tourmaline particles 13 ... Dirt detection sensor 14 ... Power cutoff switch 15 ... Control device 16 ... Ion generator

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F04D 29/38 F04D 29/38 C F24F 7/00 F24F 7/00 BF term (reference) 3H033 AA02 AA14 BB02 BB08 BB19 CC02 DD06 DD13 EE04 EE05 4C080 AA05 BB02 BB05 CC01 HH05 JJ03 KK08 LL10 MM01 NN22 QQ17 4D019 AA01 BA12 BA13 BB02 BB03 BC20 CA10 CB04

Claims (7)

[Claims] 1. An air cleaning device for fixing a blade body having a plurality of blades to a rotary shaft of a drive unit to clean air by blowing air from the blade body rotated by the drive force of the drive unit. An air purifying filter formed to have a size that covers the opening is attached to the opening formed in the blade of the body, and the blade having the air purifying filter is attached to a drive unit that rotates the blade. An air purifier that is detachably attached to the rotating shaft. 2. A hole portion, into which a rotary shaft of a drive unit for rotating the blade member is inserted and fixed, is provided in a rotation center portion of a blade member having a plurality of blades, and an opening formed in the blade of the blade member. An air cleaning blade equipped with an air cleaning filter formed to have a size that covers the opening. 3. The air cleaning device according to claim 1 or the blade body for air cleaning according to claim 2, wherein the air cleaning filter is configured by using an ion generator that generates ions suitable for cleaning the air. 4. The air cleaning apparatus according to claim 1 or 3, further comprising ion generating means for generating ions suitable for air cleaning. 5. Whether the degree of contamination of the air is below or equal to a reference value or above, based on the degree of contamination detection means for detecting the degree of contamination of the air and the detection information output from the contamination degree detection means. The air purification apparatus according to claim 1, 3 or 4, further comprising: a control unit that drives the drive unit when the determination is made that the value is equal to or less than the reference value. 6. The air cleaning apparatus according to claim 1, 3, 4 or 5, further comprising a power cutoff means for cutting off the power supply to the drive section when the cover surrounding the blade body is opened. 7. The air cleaning apparatus according to claim 1, further comprising a replacement time display means for displaying a replacement time of the air cleaning filter in a visually distinguishable color.