JP2004085025A - Air cleaner and vane member for cleaning air - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaner capable of performing ventilation and air cleaning stably and reducing noise and load when ventilating and to provide a vane member for cleaning air. <P>SOLUTION: This air cleaner 1 is constituted in such a way that an air cleaning filter 11 is supported by support parts 9d, 9d in the radial direction and the circumferential direction formed in an opening part 9a of a vane 9 constituting the vane member 8, a lattice-like support part 9e, and a meshlike support part 9f when cleaned and filtered clean air is fed into a desired direction by the air cleaning filter 11 mounted on the vane 9 of the vane member 8 by rotating the vane member 8 in a ventilation part 3 to receive air pressure and stress given to the air cleaning filter 10 by the support parts 9d, 9e, 9f. Substantially whole ventilation face of the air cleaning filter 11 is formed so that it is maintained in a flat condition in which it agrees substantially with a ventilation face of the vane 9 and a smooth curved face condition. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is intended to remove, for example, smoke and odor of tobacco, pet odor, cooking odor, toilet odor, body odor, odor of adhesives and interior parts, exhaust gas, pollen, mold fungi, various bacteria, dead mites, pet hair, and the like. The present invention relates to an air purifying device used for purifying air and a blade for air cleaning.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, examples of the above-described air purifying apparatus include a propeller fan and a fan each having a sheet-shaped deodorizing filter installed in an opening formed in a blowing surface of a blade.
[0003]
[Patent Document 1]
JP-A-2000-314393.
[0004]
[Problems to be solved by the invention]
However, since the propeller fan described above has an opening on the rear side of the deodorizing filter attached to the blade, when wind pressure and stress are applied to the deodorizing filter during blowing, the blowing surface of the deodorizing filter is wave-shaped. Since the air tends to hit or bend and the air flowing along the air blowing surface of the blade is disturbed, the wind noise generated at the time of air blowing becomes large, and a desired air volume cannot be obtained. In addition, since the air resistance applied to the blades and the deodorizing filter is large, and a load is applied to the drive unit that rotates the propeller fan, there is a problem that a cause of failure or damage and an increase in power consumption are increased. Have.
[0005]
The present invention has been made in view of the above problems, and maintains an air cleaning filter attached to a blade of a blade body in a state substantially coincident with a blowing surface of the blade, so that blowing and air cleaning can be stably performed, It is an object of the present invention to provide an air purifying device and a blade for air purifying which can reduce noise and load of the air.
[0006]
[Means for Solving the Problems]
The present invention is an air purifying apparatus for purifying air blown by rotation of a blade by an air cleaning filter attached to a plurality of blades constituting the blade, wherein an opening formed in a blowing surface of the blade is provided. An air purifying filter formed in a size to cover the opening, and a supporting portion for supporting the air purifying filter in a state substantially coinciding with the air-blowing surface of the blade, a peripheral portion facing the opening. It is characterized by an air purifying device and a blade for air purifying provided therebetween.
[0007]
The above-mentioned air purifying filter may be formed of a sheet-like nonwoven fabric, woven fabric, or entangled body formed of a synthetic fiber or a natural fiber thread to which an ion generator such as tourmaline (tourmaline), pine ore, or charcoal adheres. And a sponge or a porous material containing an ion generator. In addition, the support portion may be formed of a bar, a bone, a striatum, or the like having a strength, a thickness, a width, and a length suitable for supporting, for example, the air cleaning filter in a state substantially coinciding with the air blowing surface of the blade. it can.
[0008]
In other words, when the blade body having a plurality of blades is rotated and the clean air filtered and filtered by the air cleaning filter is blown in a desired direction, the air pressure applied at the time of blowing blows the support portion of the opening. The air purifying filter is pressed against the air purifying filter, and the air blowing surface of the air purifying filter is supported by the supporting portion in a stable state. In addition, the air pressure and the stress applied to the air cleaning filter are received by the support portion, and the substantially entire air blowing surface of the air cleaning filter is maintained in a flat state or a smooth curved state that substantially matches the air blowing surface of the blade.
[0009]
As an embodiment, the support portion may be provided at a height at which the air cleaning filter is supported so as to be substantially coincident with a blowing surface of the blade. Further, a plurality of the support portions may be provided at intervals in which the air cleaning filter is supported so as to substantially coincide with the air blowing surface of the blade. Also, the support section intersects (eg, at an angle of approximately 90 degrees, approximately 90 degrees or more, approximately 90 degrees or less) at which the air cleaning filter is supported in a state substantially coincident with the air blowing surface of the blade (for example, a grid). Shape, mesh shape, including those subjected to punching, etc.).
[0010]
[Action and effect]
According to the present invention, the air cleaning filter mounted on the blade of the blade body is supported by the supporting portion formed at the opening of the blade, and the wind pressure and stress applied to the air cleaning filter are received by the supporting portion. A substantially entire air blowing surface of the air cleaning filter can be maintained in a flat state or a smooth curved state substantially coinciding with the air blowing surface of the blade, and when blowing, the air blowing surface of the air cleaning filter is wavy or bent. Without blowing, air blowing and air cleaning can be performed stably. In addition, since the air flows smoothly along the air blowing surface of the blade and the air cleaning filter, the wind noise generated at the time of the air blowing is small, the load applied to the driving unit of the blade is reduced, and the noise is reduced and the durability is reduced. Can be improved.
[0011]
【Example】
An embodiment of the present invention will be described below in detail with reference to the drawings.
The drawings show a fan-type air cleaning device and a blade for air cleaning which are used when efficiently purifying air in a desired place or range. In FIGS. 1 and 2, the air cleaning device 1 For example, a support base 2 having a substantially trapezoidal shape when viewed from a side face installed in an upright state with respect to an installation place such as a floor or the ground, and an air blower 3 for blowing air in a desired direction.
[0012]
The above-mentioned support base 2 has a support portion 2a formed in a substantially conical cylindrical shape when viewed from the side, and is erected substantially at the center of the upper surface of a pedestal portion 2b having a large contact area formed substantially in a disk shape when viewed from a plane. A support 2c, which is inserted into the support 2a at a desired height so as to be adjustable up and down, is driven by a swing mechanism 2d rotatable up and down and left and right. It is connected to. Further, the swing mechanism 2d may be provided rotatably at a desired angle and direction by, for example, a driving force of a motor or a manual force.
[0013]
In addition, a power switch 2e for energizing and interrupting the current supplied to the drive unit 6 to drive and stop the swing operation of the swing mechanism unit, a timer switch 2f for setting the blowing time and the cleaning time, A changeover switch 2g for switching the cleaning power (the rotation speed of the drive unit 6) to high, medium, and low is provided on the front upper surface (operation surface) of the pedestal 2b. A power cord 2h with a plug connected to a power supply (for example, a household or industrial outlet) is connected to the rear or side of the pedestal 2b. Further, a cord accommodating portion (not shown) for accommodating the power cord 2f may be provided at a rear portion or a side portion of the pedestal portion 2b.
[0014]
The driving and stopping of the switches 2e to 2g are controlled by control means such as an electric circuit or an IC circuit built in the support unit 2. Further, the switches 2e to 2g can be configured by one or more of a dial switch, an electrostatic sensing switch, a pressure-sensitive switch, a keyboard switch, a lever switch, a slide switch, and the like.
[0015]
In addition, all the operations of the blower unit 3 such as the blowing force (strong, medium, and weak), the blowing time, and the swinging operation are converted into a signal transmitted from, for example, a wireless (infrared) remote controller (not shown). It can also be controlled based on this.
[0016]
As another example of the support means that replaces the above-mentioned support table 2, for example, a tripod-type support leg is connected to the drive unit 6 via a swing mechanism 2d, or is attached to the support leg so as to be vertically movable. The blower 3 can be adjusted up and down to a desired height, for example, by connecting the support bar to the drive unit 6.
[0017]
The above-mentioned blower unit 3 has a net-shaped rear cover 4 and a front cover 5 which are formed in a substantially round shape by a metal striated body when viewed from the front, and formed in a substantially bowl shape when viewed from the side, and at the upper end of the above-described support column 2c. A drive unit 6 that is swingably connected to the drive unit 6 and a rotation shaft 6b of a motor 6a built in the drive unit 6 protrude from the center of the front surface of the rear cover 4 and are detachably attached to the rotation shaft 6b. A blade body 8 and a cap 7 screwed to an end of a rotation shaft 6b protruding from the center of the front surface side of the blade body 8, the rear cover 4 is attached to the front of the drive unit 6, and the rotation shaft 6b of the motor 6a is mounted. Is inserted into the center of rotation of the blade body 8, and a cap 7 is screwed and fixed to the tip of the rotation shaft 6 b projecting from the center of the front side of the blade body 8, and then the rear cover 4 is attached to the front cover 5. Fit and fix the opposing peripheral edges with the stoppers 4a ... That.
[0018]
As shown in FIGS. 3, 4, and 5, the above-described blade body 8 is configured such that a blade 9 having a curved surface shape and an inclined angle that is blown forward is formed integrally with an outer peripheral surface of a shaft portion 10. And a plurality of the blades 9 (three in the embodiment) at predetermined intervals in the circumferential direction around the rotation center of the shaft portion 10. Further, a hole 10 a into which the rotating shaft 6 b of the motor 6 a built in the driving unit 6 is inserted is formed so as to penetrate in the axial direction with respect to the rotation center of the shaft 10. Further, the screw attached to the shaft 10 may be abutted against the outer peripheral surface of the rotating shaft 6b and fastened and fixed, or the rotating shaft 6b and the hole 9a may be formed into a polygonal cross-sectional shape that matches each other to transmit power. .
[0019]
In addition, an opening 9a having a size and a shape substantially corresponding to an air purifying filter 11 described later is formed in the central air-blowing surface of the blade 9, and a step formed in the inner peripheral edge of the opening 9a on the air-blowing side. 9b is formed in the same size and shape as the outer peripheral edge of the air cleaning filter 11 and at a depth substantially equal to or greater than the thickness of the air cleaning filter 11.
[0020]
In addition, the support portion 9d that supports the air cleaning filter 11 in a flat state substantially matching the air blowing surface of the blade 9 or a curved surface state substantially corresponding to the air blowing surface is moved from the small-diameter inner peripheral edge of the opening 9a to the large-diameter side. A plurality of support portions 9d (two in the embodiment) are formed in the radial direction toward the peripheral edge portion and are substantially parallel to each other at predetermined intervals in the circumferential direction.
[0021]
Further, the support portions 9d, 9d are formed at a height lower than the air blowing surface of the blade 9 and substantially the same as the step portion 9b of the opening 9a, and the air cleaning is performed so as to substantially coincide with the air blowing surface of the blade 9. In addition to supporting the filter 11, the space between the supporting portions 9d, 9d is set to an interval at which the air cleaning filter 11 is supported in a flat state substantially matching the air blowing surface of the blade 9 or a curved state substantially corresponding to the air blowing surface. are doing. Further, as shown in FIG. 6, the support portions 9d, 9d can be formed substantially parallel to the circumferential direction. The number of the support portions 9d can be changed to, for example, one or two or more.
[0022]
The above-described air cleaning filter 11 may be used, for example, to convert tourmaline fine powder (tourmaline) obtained by pulverizing tourmaline (tourmaline) or a liquid containing the tourmaline fine powder into a synthetic resin synthetic fiber or natural fiber. This is a sheet-like non-woven fabric formed in such a size and shape that it is evenly attached to the twisted yarn and is entangled with each other to cover the entire opening 9a of the blade 9.
[0023]
Further, instead of the above-mentioned tourmaline (tourmaline), a negative ion generating substance such as pine ore or charcoal may be used. Further, as other examples of the air cleaning filter 11, for example, a woven fabric knitted with yarn to which tourmaline fine powder adheres, a tangled body formed by entanglement of many yarns in a cotton-like manner, or the like may be used.
[0024]
The stopper pins 11c, which can be elastically displaced into a contracted state in which insertion into the holes 9c formed in the inner peripheral edge of the step portion 9b is allowed and an expanded state in which the holes 9c are inserted and fixed so that they cannot be pulled out, are removed by air. It is attached to the outer peripheral edge of the cleaning filter 11 at a predetermined interval. That is, by inserting the stop pins 11c of the air purifying filter 11 into the holes 9c of the opening 9a, the air purifying filter 11 is fixed so that the entire opening 9a of the blade 9 is covered. The support portions 9b, 9b support the air conditioner in a flat state or a smooth curved state substantially coincident with the blowing surface.
[0025]
In addition, the central portion of the air cleaning filter 11 and the support portions 9b and 9b of the opening 9a can be fixed by the above-described locking pin. Alternatively, instead of the retaining pin, it can be detachably attached by, for example, a hook-and-loop fastener or a double-sided adhesive tape, or can be integrally fixed by, for example, an adhesive, an adhesive, a stopper, or the like.
[0026]
FIG. 7 shows a block diagram of a control circuit of the air cleaning device 1. The control device 15 has a built-in CPU, ROM, and RAM. The CPU operates a swing mechanism in accordance with a program stored in the ROM (or PROM). 2d, a power switch 2e, a timer switch 2f, a changeover switch 2g, a motor 6a, a dirt detection sensor 13, a power cutoff switch 14, and a drive / stop of an ion generator 16 described later. The RAM stores detection information output from the dirt detection sensor 13 and reference information serving as a determination reference.
[0027]
When the power switch 2e is turned on, the dirt detection sensor 13 provided in the blower unit 3 detects the smell of the surrounding air, the degree of dirt, the amount of floating substances floating in the air, and detects the detection information. 15 is output. Further, the dirt detection sensor 13 may be provided on, for example, the support 2 a or the pedestal 2 b of the support 2, the rear cover 4 or the front cover 5 of the blower 3.
[0028]
In addition, the control device 15 compares and calculates the detection information output from the dirt detection sensor 13 with the comparison information stored in advance, and determines whether the odor or dirt condition of the surrounding air is equal to or less than the reference value or equal to or greater than the reference value. It is determined whether there is. If it is determined that the air is dirty and is equal to or less than the reference value, the motor 6a of the driving unit 6 is driven to rotate the blade 8 at a predetermined speed at a high speed. On the other hand, when it is determined that the air is clean and equal to or more than the reference value, the motor 6a of the drive unit 6 is not stopped or driven, and the drivable standby state is maintained.
[0029]
The power cut-off switch 14 provided on the opposite edge of the front cover 5 and the rear cover 4 faces the switch body 14a attached to the inner peripheral edge of the rear cover 4 and the operation unit 14b of the switch body 14a. When the front cover 5 is removed from the rear cover 4, the pressing portion 14 c is separated from the operating portion 14 b of the power cutoff switch 14, and the operating portion 14 b is separated from the pressing portion 14 c attached to the inner peripheral portion of the front cover 5. It returns to the OFF position (projection position) and outputs a signal at the time of the OFF operation to the control device 15. The control device 15 cuts off the power supply to the motor 6a and the dirt detection sensor 13 based on an electric signal output when the power cutoff switch 14 is turned off.
[0030]
On the other hand, when the front cover 5 is attached to the rear cover 4, the operation portion 14b of the power cutoff switch 14 is pushed back to the ON position (immersion position) by the pressing portion 14c, and outputs a signal at the time of the ON operation to the control device 15. . The control device 15 energizes the motor 6a and the dirt detection sensor 13 based on an electric signal output when the power cutoff switch 14 is turned on.
[0031]
The illustrated embodiment is configured as described above, and a method of blowing air and cleaning air by the air cleaning device 1 will be described below.
[0032]
First, as shown in FIG. 1, the power switch 2 e is turned ON, and the control device 15 determines the smell of air or the degree of dirt based on the detection information output from the dirt detection sensor 13. If it is determined that the amount of suspended matter floating in the air is large and the smell or the degree of contamination of the air is equal to or less than the reference value, the blade 8 of the blowing unit 3 is rotated by the driving force of the driving unit 6. Then, airborne filters such as dust and dust, tobacco smoke, pollen, mold fungi, various germs, dead mites, pet hair, and the like, which float in the air, are attached to the wings 9 of the wing body 8. While separating and removing by 11, clean and filtered clean air is blown in a desired direction.
[0033]
Further, the negative ions generated by the tourmaline fine powder of the air purifying filter 11 are released in the blowing direction by the blowing operation and the swinging operation of the blowing unit 3, and the positive ions in the surroundings and the human body are reduced in a short time.
[0034]
Further, the air cleaning filter 11 is pressed against the supporting portions 9d, 9d formed in the openings 9a of the blades 9 by the wind pressure applied at the time of blowing, and the central blowing surface of the air cleaning filter 11 is supported by the supporting portions 9d, 9d. Is supported in a stable state. Further, the wind pressure and the stress applied to the air cleaning filter 10 are received by the supporting portions 9d, 9d, and the substantially entire air blowing surface of the air cleaning filter 11 is in a flat state and a smooth curved state substantially matching the air blowing surface of the blade 9. To maintain.
[0035]
On the other hand, when it is determined that the amount of suspended matter floating in the surrounding air is small and the degree of contamination of the air is equal to or higher than the reference value, the power supply to the driving unit 6 is cut off or stopped, and the blowing operation of the blowing unit 3 and Stop the clean filtration.
[0036]
As described above, the air cleaning filter 11 mounted on the blades 9 of the blade body 8 is supported by the support portions 9d and 9d formed in the opening 9a of the blade 9, and the wind pressure applied to the air cleaning filter 11 And the stresses are received by the supporting portions 9d, 9d, so that the substantially entire air-blowing surface of the air cleaning filter 11 can be maintained in a flat state and a smooth curved state substantially coinciding with the air-blowing surface of the blade 9, and at the time of air blowing, The air blowing surface of the air cleaning filter 11 does not wavy or bend, so that air blowing and air cleaning can be performed stably. In addition, since the air flows smoothly along the air blowing surfaces of the blades 9 and the air cleaning filter 11, the wind noise generated at the time of air blowing is small, the load applied to the drive unit 6 is reduced, and the noise is reduced and the durability is reduced. Can be improved.
[0037]
FIG. 8 shows another example of the blade body 8 that supports the air cleaning filter 10 with the lattice-shaped support portions 9e formed in the openings 9a of the blades 9, and the air cleaning filter 11 forms the blade body 8. The lattice-shaped support portions 9e maintain a flat state or a curved state substantially corresponding to the air blowing surface of the blade 9 to be blown, and reduce the wind pressure and stress applied to the air blowing surface of the air cleaning filter 10. Since the air purifying filter 10 is received by the supporting portions 9f..., The air blowing surface of the air purifying filter 10 is less likely to undulate or bend than to be supported by the radial or circumferential supporting portions 9d as described above. It is possible to obtain an operation and an effect substantially equivalent to or more than the above.
[0038]
FIG. 9 shows another example of the blade body 8 that supports the air purifying filter 10 with mesh-shaped supporting portions 9f formed in the opening 9a of the blade 9, and the air purifying filter 11 constitutes the blade body 8. The mesh-shaped support portions 9f maintain a flat state substantially coincident with the air blowing surface of the blade 9 or a curved surface substantially corresponding to the air blowing surface, and reduce the wind pressure and stress applied to the air blowing surface of the air cleaning filter 10. Since it is received by the support portions 9f, the stress generated per unit area is smaller than that of the above-described lattice-shaped support portions 9f, and even if the thickness of the air cleaning filter 10 is reduced, the airflow surface Without waving or bending, it is possible to achieve actions and effects substantially equivalent to or equal to or greater than those of the above-described embodiment.
[0039]
In the embodiment, the above-mentioned support portions 9e and 9f intersect at substantially orthogonal angles (approximately 90 degrees). For example, the support portions 9e and 9f have an angle of approximately 90 degrees or more (obtuse angle) or an angle of approximately 90 degrees or less (acute angle). The intersection angle can be changed.
[0040]
The configuration of the air cleaning device 1 and the blades 8 described above can also be applied to a blower that rotates and blows the blades of a large fan, a commercial fan, a commercial fan, a household fan, or the like. it can. Further, the above-described blower unit 3 can be directly fixed to a fixing unit (not shown) such as a wall, a column, or a ceiling.
[Brief description of the drawings]
FIG. 1 is a side view showing a schematic structure of an air cleaning device.
FIG. 2 is a side view of a blower unit in a state where a blade body and a front cover are removed.
FIG. 3 is a perspective view of a blade body showing a method of attaching an air cleaning filter.
FIG. 4 is a front view of a blade body showing an attached state of an air cleaning filter.
FIG. 5 is a sectional view of a blade showing an attached state of an air cleaning filter.
FIG. 6 is an enlarged front view showing another example of a blade body in which a support portion is formed in a substantially circumferential direction.
FIG. 7 is a control circuit block diagram of the air cleaning device.
FIG. 8 is an enlarged front view showing another example of a blade body supported by a lattice-shaped support portion.
FIG. 9 is an enlarged front view showing another example of a blade body supported by a net-shaped support portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Air purifier 2 ... Support 3 ... Blower 4 ... Rear cover 5 ... Front cover 6 ... Drive part 8 ... Blade 9 ... Blade 9a ... Openings 9d, 9e, 9f ... Support 11 ... Air cleaning filter

Claims (5)

An air purifying apparatus for purifying air blown by rotation of the blade body by an air cleaning filter attached to a plurality of blades constituting the blade body,
Attaching an air purification filter formed in a size to cover the opening to the opening formed in the air blowing surface of the blade,
An air purifying apparatus, wherein a supporting portion for supporting the air purifying filter in a state substantially coincident with a blowing surface of the blade is provided between opposing peripheral portions of the opening. At the center of rotation of a wing body having a plurality of wings, a hole is provided in which a rotation shaft of a driving unit that rotates the wing body is inserted and fixed,
Attaching an air purification filter formed in a size to cover the opening to the opening formed in the air blowing surface of the blade,
An air cleaning blade body provided with a supporting portion for supporting the air cleaning filter in a state substantially coincident with the air blowing surface of the blade between opposing peripheral edges of the opening. The air cleaning device according to claim 1 or the air cleaning device according to claim 2, wherein the support portion is provided at a height at which the air cleaning filter is supported so as to substantially coincide with a blowing surface of the blade. The air cleaning device according to claim 1, wherein a plurality of the support portions are provided at intervals that support the air cleaning filter so as to substantially coincide with a blowing surface of the blade. 4. The blade for air cleaning according to claim 2. body. The air cleaning device or the air cleaning blade according to claim 4, wherein the support section is provided so as to intersect at an angle at which the air cleaning filter is supported so as to substantially coincide with a blowing surface of the blade.

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