JP2002336733A - Dust collector and air conditioner having the dust collector mounted thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collector applicable to an air conditioner, or the like, which can collect fine particles at a low cost without requiring an electric source part such as an electrostatic precipitator and without generating such pressure drop as in an HEPA filter. SOLUTION: The dust collector 1 is provided with a plurality of flat dust collecting plates 2 installed in parallel, a friction plate 3 placed between the above plates and charged with static electricity by rubbing the outer surface of the dust collecting plates, a driving means 4 for frictionally moving the above friction plate along the outer surface of the collecting plates, and a supporting means 5 supporting the above dust collecting plates. Then the static electricity is generated and charged on the flat dust collecting plates by frictionally moving the friction plate. Fluid smoothly passes through the outer surface portions of the charged flat dust collecting plates 2 and the dust in the fluid is effectively attracted and collected on the flat plate-shaped outer surface of the dust collecting plates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for collecting dust by generating static electricity by friction, and more particularly to a dust collector capable of effectively removing particulate air pollutants and the like. is there.

[0002]

2. Description of the Related Art There is an electric dust collector as a dust collecting method generally employed for purifying indoor air. This electrostatic precipitator is a two-stage charging system consisting of an ionization unit that charges dust and a dust collection unit that adsorbs and collects the charged dust.The ionization unit is composed of a needle-like electrode, a tungsten wire, and a parallel electrode. By applying a high DC voltage to the electrode and the tungsten wire, corona discharge is generated and positive ions are filled.

When dust in the fluid flows while the positive ions are being filled, the dust is immediately charged positively. On the other hand, the dust collecting part is also composed of an electrode (+) to which a DC voltage is applied and an electrode (both aluminum), and when the positively charged dust flows into the electric field of this dust collecting part, the Coulomb force Adsorbs to the minus pole.

[0004]

However, such an electrostatic precipitator requires a power source and thus is expensive, and has a risk of spark discharge and electric shock due to generation of a high voltage.

[0005] Further, in a filter system which is another dust collecting system, particles having a size of several microns or less can hardly be collected, and even if it has a high performance like a HEPA filter, the ventilation resistance is large and the cost is high. Was.

The present invention solves the above-mentioned conventional problems, and does not require a high power supply unit such as an electrostatic precipitator, does not have a pressure loss such as a HEPA filter, and easily forms particulate air pollution. Provided is a dust collecting device capable of collecting substances and the like.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, a dust collecting apparatus according to the present invention is provided with a plurality of dust collecting means provided in parallel, and a static electricity is charged by rubbing an outer surface of the dust collecting means. A fluid that includes friction means, driving means for frictionally moving the friction means along the outer surface of the dust collection means, and holding means for holding the dust collection means; It collects dust inside and inexpensively and effectively collects particulate dust.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a dust collecting means provided in parallel, a friction means for rubbing the outer surface of the dust collecting means to charge static electricity, and the friction means. And a holding means for holding the dust collecting means, and a driving means for frictionally moving the dust collecting means along an outer surface of the dust collecting means.

In the above embodiment, static electricity is generated and charged in the dust collecting means by friction caused by the movement of the friction means. Then, the fluid passes through the outer surface of the electrostatically charged dust collecting means, and dust in the fluid is adsorbed and collected on the outer surface of the dust collecting means.

According to a second aspect of the present invention, there is provided a flat dust collecting plate provided in parallel with a plurality of dust collecting plates, and static electricity is charged by rubbing the outer surface of the dust collecting plate. The dust collector includes a friction plate to be driven, a driving unit that frictionally moves the friction plate along an outer surface of the dust collection plate, and a holding unit that holds the dust collection plate.

In the above embodiment, static electricity is generated and charged in the flat dust collecting plate by the frictional movement of the friction plate. Then, the fluid smoothly passes through the outer surface portion of the electrostatically charged flat plate dust collecting plate, and the dust in the fluid is efficiently adsorbed and collected on the flat outer surface of the dust collecting plate.

According to a third aspect of the present invention, in the first or second aspect, the polarity of the static electricity generated when the dust collecting means or the dust collecting plate is rubbed is positively charged. This is a dust collecting device in which a dust collecting plate and a dust collecting means or a dust collecting plate negatively charged are mixed and arranged.

In the above embodiment, when the fluid passes through the portion where the dust collecting means or the dust collecting plate is disposed regardless of whether the dust in the fluid is positively or negatively charged, the positively charged dust does not Negatively charged dust is adsorbed and collected by the minus dust collecting means or the dust collecting plate, and is attracted and collected by the plus dust collecting means or the dust collecting plate.

According to a fourth aspect of the present invention, the dust collecting means or the flat dust collecting plate provided in plural and plural rows in parallel and the outer surface of the dust collecting means or the dust collecting plate are rubbed. Friction means or a friction plate for charging static electricity, driving means for frictionally moving the friction means or the friction plate along the outer surface of the dust collection means or the dust collection plate, and holding means for holding the friction means or the friction plate Wherein the dust collecting means or the dust collecting plate is a dust collecting device composed of a positively charged material or a negatively charged material for each row.

[0015] In the above embodiment, the same action as in the first or second embodiment is provided, and when the fluid passes through the dust collecting means or the row of the dust collecting plate, the fluid becomes positive and negative respectively. All dust in the charged fluid always passes between the positively and negatively charged dust collecting means or the dust collecting plate, so that it is efficiently adsorbed and collected.

According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the friction means or the portion of the friction plate which comes into contact with the dust collecting means or the dust collecting plate and rubs. This is a dust collector configured by disposing a flexible conductive friction member.

In the above embodiment, since the flexible conductive friction member provided on the friction means or the friction plate comes into contact with the dust collection means or the dust collection plate to rub and charge, the frictional means or the friction plate is formed. Movement is smooth, and stable frictional force is obtained.

According to a sixth aspect of the present invention, there is provided a dust collector according to any one of the first to fifth aspects, wherein an insulating material is disposed on the outer peripheral surface of the holding means.

In the above embodiment, it is possible to make it difficult for static electricity charged in the dust collecting means or the dust collecting plate to escape, and to secure a stable withstand voltage.

According to a seventh aspect of the present invention, there is provided a dust collector according to any one of the first to sixth aspects, wherein the holding means is provided with a groove for collecting dust.

In the above embodiment, the dust adhering to the outer surface of the dust collecting means or the dust collecting plate is peeled off by the movement of the friction means or the friction plate, and the outer surface of the dust collecting means or the dust collecting plate is acted on by the charging power. It is carried without falling and is collected in the dust collection groove. Further, dust accumulated in the grooves can be returned to an initial state by periodically cleaning, and the frequency of cleaning can be reduced by changing the size of the grooves.

According to an eighth aspect of the present invention, in accordance with any one of the first to seventh aspects, the potential detecting means for detecting the potential of the dust collecting means or the dust collecting plate, and the potential detecting means. Comparing the potential detected in the above with a preset reference potential, if higher than the reference potential, controls the driving means and does not drive the friction means or the friction plate; if lower than the reference potential, the driving means This is a dust collecting apparatus having a control means for controlling the friction means or the friction plate by controlling the friction.

In the above embodiment, the potential of the dust collecting means or the dust collecting plate is compared with the reference potential, and the driving means is driven by the control means to move the friction means or the friction plate only when the potential is lower than the reference potential. In addition, useless power is not used, and the frictional deterioration of the dust collecting means or the dust collecting plate and the frictional means or the sliding portion of the frictional plate and the driving means for driving are also reduced.

If the potential of the dust collecting means or the dust collecting plate is intermittently detected, and the driving means is controlled by the control means to move the friction means or the friction plate only when the potential is lower than the reference potential, the collecting means can be obtained. Compared to a state in which the potential of the static electricity of the dust means or the dust collecting plate is continuously measured and discharged, wasteful use of electricity is eliminated and there is an energy saving effect, and the friction between the dust collecting plate and the friction plate or the dust collecting means is reduced. It is also possible to prevent the deterioration of the friction of the sliding portion of the means and the deterioration of the driving means for driving, so that the life of each component can be extended.

According to a ninth aspect of the present invention, there is provided a method according to any one of the first to seventh aspects, further comprising a control means for controlling the driving means and intermittently driving the friction means or the friction plate. It is a dust device.

In the above embodiment, the control means controls the driving means to drive the friction means or the friction plate intermittently, and always measures or intermittently measures the potential of the dust collecting means or the dust collecting plate. Since the static electricity caused by the dust is not discharged, the potential at which the dust collecting means or the dust collecting plate can be collected can be maintained for a longer time, and the driving of the friction means or the friction plate is reduced accordingly, so that the dust collecting means and the friction means or the collecting means are not reduced. It is possible to reduce the deterioration of the friction of the sliding portion between the dust plate and the friction plate and the deterioration of the driving means for driving.

According to a tenth aspect of the present invention, there is provided an air conditioner in which the dust collecting device according to any one of the first to ninth aspects is provided at a suction portion of a unit for air-conditioning a space to be air-conditioned.
According to this, the particulate dust floating in the air can be efficiently and inexpensively collected by the dust collecting device, and clean air conditioning can be performed. Further, according to the present invention, the amount of static electricity is improved with a simple structure, and fine dust is collected.

[0028]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 (a) is a front view showing a dust collector according to Embodiment 1 of the present invention, and FIG. 1 (b) is a side view thereof. The dust collecting device 1 includes a thin flat plate-shaped dust collecting plate 2 that constitutes a plurality of dust collecting units provided in parallel, and a comb-shaped friction plate that constitutes a friction unit that frictionally charges an outer surface of the dust collecting plate to charge static electricity. 3, a driving means 4 for frictionally moving the friction plate along the outer surface of the dust collecting plate 2, and a holding means 5 formed of a frame for holding the dust collecting plate 2.

The dust collecting plate 2 is fixed to the holding means 5 so that the flat surfaces are opposed to each other in parallel so that a space 6 through which the fluid can pass is maintained, and the flat surfaces are rubbed. It is made of a material that generates static electricity and is charged. Friction plate 3
Is formed by processing into a comb shape and sandwiching a plurality of dust collecting plates 2 to frictionally move in the direction of the arrow in FIG. 1 (a). It is made of a material to be made.

The driving means 4 is composed of a motor or the like. The driving means 7 has a holding means 5 for supporting both ends at both ends and a spiral groove on the outer surface.
Is rotated, and the friction plate 3 is moved in the direction of the arrow in FIG. 1A via the arm 3a of the friction plate 3 screwed thereto. The arm 3a of the friction plate 3 also serves to rub the flat surfaces of the dust collection plates 2 on both sides. Also,
As for the material of the dust collecting plate 2 and the friction plate 3, for example, the distance between the charging lines such as acrylic and nylon, polyester and nylon is large, so that the charged power becomes large, and the materials of the dust collecting plate 2 and the friction plate 3 are reversed. However, the same effect can be obtained.

In the above-described embodiment, the dust collecting device 1 is arranged so that the driving device 4 is on the lower side and the whole is vertical, and air which is a fluid containing dust passes from the front side to the rear side in FIG. I do. Then, the driving unit 4 is driven to drive the driving shaft 7.
Is rotated to move the friction plate 3 in the direction of the arrow via the arm 3a to rub the flat surface of each dust collection plate 2 to generate static electricity.
And the friction plate 3 is positioned above the holding means 5 in order to reduce the obstruction of fluid passage. When the fluid passes through the space 6 between the dust collecting plates 2, the particulate dust in the fluid, which is charged with static electricity, is adsorbed on the flat surface of each dust collecting plate 2, and the dust is collected and cleaned. Air collected by the dust collector 1
More outflow. If the potential of each dust collecting plate 2 decreases during use and the dust collecting ability decreases, the friction plate 3 is moved again by the driving means 4 and the flat surface of each dust collecting plate 2 is rubbed to maintain a constant value. In addition to charging static electricity, the attached dust is peeled off and collected at a predetermined position.

As described above, in this embodiment, since the friction plate 3 is moved by the driving means 4 to charge each of the dust collecting plates 2 with static electricity and collect the particulate dust in the fluid, the electric dust collector is used. As described above, a high-voltage circuit for applying a high voltage to the electrodes for dust collection and a simple configuration that does not require measures to prevent electric shock can collect dust at low cost. When charging the static electricity by rubbing the flat surface, the dust adhering to each dust collecting plate 2 is also peeled off and collected, so that the working efficiency can be improved.

Further, since each dust collecting plate 2 is formed in a flat plate shape and provided in parallel, the pressure loss of the fluid can be reduced, and the dust can be efficiently collected on the flat surface of each dust collecting plate 2. Can dust.

Although a flat plate is used as the dust collecting means in the above embodiment, a large number of thin cylindrical rods are arranged at random, and holes are fitted into the many rods to rub the outer surface. A corresponding friction body may be used, or a corrugated dust collecting plate and a friction body corresponding thereto may be used.

(Embodiment 2) FIG. 2 (a) is a front view showing a dust collector according to Embodiment 2 of the present invention, and FIG. 2 (b) is a front view showing a dust collector in which the arrangement of dust collecting plates is changed. FIG. The invention of this embodiment differs from the invention of the first embodiment only in that a positively-charged dust collecting plate and a negatively-charged dust collecting plate are mixed and arranged. The parts to be played will be assigned the same reference numerals as in the first embodiment, detailed description will be omitted, and different points will be mainly described.

Reference numeral 22 denotes a plurality of thin dust collection plates that are positively charged, and reference numeral 23 denotes a plurality of thin dust collection plates that are negatively charged. These dust collection plates 22 and 23 are arranged in a mixed state. 2 (a), they are arranged alternately, and in FIG. 2 (b), a group of a plurality of dust collecting plates 22 and a plurality of dust collecting plates 2
They are arranged in three groups.

In the above embodiment, when the friction plate 3 is moved by the driving means 4 and the dust collecting plates 22 and 23 are rubbed, the dust collecting plate 22 is positively charged and the dust collecting plate 23 is negatively charged. On the other hand, the negatively charged dust in the fluid is adsorbed to the positively charged dust collecting plate 22, and the positively charged dust is the negatively charged dust collecting plate 2.
3 and can collect all the dust in the fluid.

In general, when the dust collecting device is constituted by each dust collecting plate which is charged only to one of positive and negative, only the dust which is charged to either positive or negative is adsorbed. You can't.

However, in the present embodiment, the dust collecting plate 22 that is positively charged and the dust collecting plate 23 that is negatively charged are arranged in a mixed manner, so that the dust charged negatively is collected. Dust that is adsorbed on the plate 22 and is positively charged is adsorbed on the negatively charged dust collecting plate 23, so that more dust can be collected.

The dust collecting plates 22 and 23 shown in FIG.
2 can be expected to have almost the same effect as the dust collector 1 shown in FIG.

Embodiment 3 FIG. 3 is a side view showing a dust collector according to Embodiment 3 of the present invention. The invention of this embodiment is
The present invention is different from the first embodiment only in that it is a two-row type dust collector in which a plurality of dust-collecting plates forming a group are arranged in a plurality of rows. The same reference numerals as in the first embodiment denote the same parts, and a detailed description thereof will be omitted.

Numeral 32 denotes a plurality of thin dust collecting plates which are positively charged, and numeral 33 denotes a plurality of thin dust collecting plates which are negatively charged. And a plurality of dust collecting plates 33 forming a group in the second row are fixed to the holding means 5. The friction plate 3 is configured so as to be able to rub both surfaces of a plate-like positively-charged dust collecting plate 32 and a negatively-charged dust collecting plate 33 which are provided in a plurality and in a plurality of rows in parallel. The driving means 4 is configured to move frictionally along the outer surface of each of the dust collecting plates. The dust collecting plates 32 and 33 are made of a material that is positively charged or a material that is negatively charged for each row.

In the above embodiment, when the friction plate 3 is moved by the driving means 4 and the respective dust collecting plates 32 and 33 are rubbed at the same time, the dust collecting plate 32 is positively charged and the dust collecting plate 33 is negatively charged. On the other hand, the negatively charged dust in the fluid is adsorbed to the positively charged dust collecting plate 32,
Positively charged dust is adsorbed to the negatively charged dust collecting plate 33, and all dust in the fluid can be collected.

When the positively charged dust collecting plate 32 and the negatively charged dust collecting plate 33 are arranged adjacent to each other, if the distance between the respective dust collecting plates is reduced, the amount of electrostatic charge becomes positive and negative. A constant interval is maintained to reduce cancellation, so that the charge amount of static electricity is not canceled. Accordingly, the negatively charged dust is adsorbed to the positively charged dust collecting plate 32, and the positively charged dust is adsorbed to the negatively charged dust collecting plate 33.

As described above, in this embodiment, since the plurality of dust collecting plates 32 and 33 forming a group are arranged in a plurality of two rows along the flow of the fluid, the area of the dust collecting plates becomes large and the dust collecting plate becomes large. Capability can be increased, and the fluid is charged negatively and positively in a single fluid passage, compared to a configuration in which the fluid flows in the order of a positively charged dust collector and then a negatively charged dust collector. Dust collected can be adsorbed and dust collection efficiency can be improved.

(Embodiment 4) FIG. 4 is an enlarged side view of a portion of a dust collector of a dust collector in contact with a dust collector according to a fourth embodiment of the present invention. The present embodiment is different from the first embodiment in that a conductive soft friction member is provided in a portion of the friction plate that comes into contact with the dust collecting plate, and the other portions having the same configuration and operation and effect are provided. The same reference numerals as in the first embodiment denote the same parts, and a detailed description thereof will be omitted.

The friction plate 3 is provided with a conductive soft friction member 41 at a portion in contact with each dust collecting plate. Friction plate 3
Since the dust collecting plate is made of synthetic resin, the heat generated when the friction plate 3 moves and rubs the dust collecting plate may soften the resin and make it impossible to slide smoothly. Operation and frictional force are obtained.

The material of the friction member 41 is, for example, cotton,
Hemp, nonwoven fabric made of nylon, nonwoven fabric made of polyester, and the like are preferable, but similar effects can be obtained if the positional relationship between the material of the dust collecting plate and the charging line is far.

(Embodiment 5) FIG. 5 is a side view of a dust collector according to Embodiment 5 of the present invention. This embodiment is different from the first embodiment in that the outer surface of the holding means provided with the dust collecting plate is formed of an electrical insulator, and the other parts having the same configuration and the same operation and effect as those of the first embodiment are not described. The same reference numerals as in Fig. 1 denote the same parts, and a detailed description thereof will be omitted.

The holding means 5 has an electric insulator 51 on the outer surface opposite to the surface on which the dust collecting plate 2 is mounted. This makes it difficult for the static electricity charged on the dust collecting plate 2 to escape, and a stable withstand voltage can be secured.

(Embodiment 6) FIG. 6 is an enlarged view of a main part showing a dust collecting groove of a dust collecting apparatus according to Embodiment 6 of the present invention. This embodiment is different from the first embodiment in that a groove for collecting dust adhering to the dust collecting plate is provided in the holding means, and other parts having the same configuration and operation and effect are provided. The same reference numerals as in Example 1 denote the same parts, and a detailed description thereof will be omitted. The holding means 5 is provided with a dust collecting groove 61 in a portion 5a which is a bottom portion and fixes each dust collecting plate 2 when the whole of the dust collecting device 1 is vertically arranged.

In the above embodiment, FIG.
The operation will be described with reference to (a) and (b). The dust collector 1 is arranged so that air, which is a fluid containing dust, passes from the front side to the back side in FIGS. Then, the driving means 4 is driven to rotate the drive shaft 7 to move the friction plate 3 in the vertical direction, thereby rubbing the flat surface of each dust collection plate 2 to charge each dust collection plate 2 with static electricity. When the fluid passes through the space 6 between the dust collecting plates 2, the particulate dust in the fluid, which is charged with static electricity, is adsorbed on the flat surface of each dust collecting plate 2, and the dust is collected and cleaned. The exhausted air flows out of the dust collector 1. If a large amount of dust adheres to the outer surface of each dust collecting plate 2 and the dust collecting ability is reduced, the friction plate 3 retracted to the upper part of the holding means 5 is moved downward by the driving means 4 during dust collection. Each dust collecting plate 2
The attached dust 62 is peeled off by rubbing the flat surface of the
1 to be collected.

As described above, in the present embodiment, the dust 62 peeled off from the outer surface of each dust collecting plate 2 by the friction plate 3 is collected in the groove 61 and can be prevented from being blown out by the air passing through the gap 6. Further, the dust 62 accumulated in the groove 61 can be returned to the initial state by periodically cleaning. Further, the cleaning frequency can be changed by changing the size of the groove 61.

(Embodiment 7) FIG. 7 is a control circuit diagram of a dust collector according to Embodiment 7 of the present invention. This embodiment is different from the first embodiment only in that a means for controlling the driving of the friction plate by detecting the potential of the dust collecting plate charged with static electricity is provided. Are denoted by the same reference numerals as in the first embodiment, detailed description thereof will be omitted, and different points will be mainly described.

The means for controlling the driving of the friction plate 3 includes a potential detecting means 71 for detecting the potential of the dust collecting plate 3 and a potential detected by the potential detecting means 71, which is compared with a preset reference potential. If it is higher than the reference potential, the driving means 4 is not driven to drive the friction plate 3, and if it is lower than the reference potential, the driving means 4 is controlled to drive the friction plate 3 in the direction of the arrow. Means 72 are provided.

In the above embodiment, the dust collecting apparatus 1 is arranged so that air, which is a fluid containing dust, passes from the front side to the rear side in FIG. Since the potential of the dust collecting plate 2 detected by the potential detecting means 71 is lower than the potential at which dust can be collected by the control means 72, the controlling means 72 drives the driving means 4 to rotate the drive shaft 7. Then, the friction plate 3 is moved up and down to rub the flat surface of each dust collection plate 2 to charge each dust collection plate 2 to a reference potential or more.
When each of the dust collecting plates 2 is charged above the reference potential, the control means 72 determines the potential obtained through the potential detecting means 71, and controls the driving means 4 to stop the movement of the friction plate 3. When the fluid passes through the space 6 between the dust collecting plates 2, the particulate dust in the fluid, which is charged with static electricity, is adsorbed on the flat surface of each dust collecting plate 2, and the dust is collected and cleaned. The discharged air flows out of the dust collector 1. If the potential of each dust collecting plate 2 drops below the reference potential again during dust collection, the driving of the friction plate 3 is controlled by the control means 72 as described above.

As described above, in this embodiment, when the potential of each dust collecting plate 2 falls below the reference potential by the control means 72, the driving means 4 is controlled to drive the friction plate 4.
There is no need to continuously operate the motor, eliminating wasteful use of electric power and improving the energy saving effect. In addition, the driving means 4 for deteriorating friction and driving the sliding portion between the dust collecting plate 2 and the friction plate 3
Therefore, the life of each component can be extended.

In the above embodiment, since the control means 72 continuously measures the potential of the static electricity on the dust collecting plate 2, it is in the same state as discharging the charged static electricity. Part of the static electricity for dust collection is used for controlling the potential of the plate, which is not preferable from the viewpoint of dust collection. Therefore, when the potential of the dust collecting plate 2 is intermittently measured and is lower than the reference potential,
If the control means is configured to drive the friction plate 3, wasteful use of electric power can be further eliminated, and the energy saving effect can be enhanced. In addition, the friction between the sliding portion between the dust collection plate 2 and the friction plate 3 is deteriorated and driving is performed. Therefore, the life of each component can be further extended since deterioration of the driving means can be prevented.

Further, if the control means is configured to drive the friction plate 3 by controlling the driving means 4 intermittently at regular time intervals by a timer, the potential of the dust collecting plate 2 is always measured or intermittently. Unlike measuring and discharging the static electricity, the potential at which the dust collecting plate 2 can collect dust can be maintained for a longer time, and the driving of the friction plate 3 is reduced accordingly, so that the sliding of the dust collecting plate 2 and the friction plate 3 is performed. It is possible to reduce deterioration of friction of the moving part and deterioration of the driving means for driving.

(Embodiment 8) FIG. 8 shows the first to ninth aspects of the present invention.
It is a schematic structure figure showing the air conditioner provided with the dust collection device in any one of. An outdoor unit (not shown) and a refrigerant circuit are connected to form a refrigeration cycle, and a suction portion 82 of an air conditioning unit 81 for air-conditioning a space to be air-conditioned is provided according to the present invention.
The dust collector 1 according to any one of Embodiments 1 to 7 corresponding to the dust collector according to any one of Embodiments 9 to 9 is provided. 83 is a fan, 84 is an outlet for conditioned air, and 85 is a heat exchanger.

In the above-described embodiment, the air sucked from the suction portion 82 by the rotation of the fan 83 passes through the dust collecting device 1 and the floating particulate dust is collected by the dust collecting device 1 and purified. The air exchanges heat with the heat exchanger 85 and is blown out from the outlet 84.

As described above, in the present embodiment, the dust is collected at a low cost by a high-voltage circuit for applying a high voltage to the electrodes for dust collection as in the case of an electric dust collector and a simple configuration that does not require measures to prevent electric shock. When the static electricity is charged by rubbing the flat surface of each dust collecting plate 2 with the friction plate 3, the dust attached to each dust collecting plate 2 is also peeled off and collected, thereby improving the working efficiency. . In addition, the amount of static electricity is improved with a simple structure, and fine dust can be collected.

[0064]

As is clear from the above embodiment, the invention according to claim 1 of the present invention comprises a plurality of dust collecting means provided in parallel, and a friction for charging static electricity by rubbing the outer surface of the dust collecting means. Means, a driving means for frictionally moving the friction means along the outer surface of the dust collecting means, and a holding means for holding the dust collecting means, wherein the dust in the fluid is collected by the electrostatically charged dust collecting means. And effectively collect inexpensive and particulate dust.

According to a second aspect of the present invention, there is provided a friction plate provided between a plurality of flat dust collecting plates provided in parallel and the dust collecting plate, and frictionally charging an outer surface of the dust collecting plate to charge static electricity. And a driving unit for frictionally moving the friction plate along the outer surface of the dust collection plate, and a holding unit for holding the dust collection plate,
The fluid containing dust can smoothly flow between the flat dust collecting plates to reduce the pressure loss, and the dust in the fluid can be efficiently adsorbed and collected on the flat outer surface of the dust collecting plate.

According to a third aspect of the present invention, the polarity of the static electricity generated when the dust collecting means or the dust collecting plate is rubbed is such that the positively charged dust collecting means or the dust collecting plate is negatively charged. The dust collecting plates are arranged in a mixed manner, so that dust in the fluid can be surely adsorbed and collected regardless of whether the dust is positively or negatively charged.

According to a fourth aspect of the present invention, the static electricity is charged by friction between the dust collecting means or the flat dust collecting plate provided in plural and plural rows in parallel and the outer surface of the dust collecting means or the dust collecting plate. Friction means or a friction plate to be driven, driving means for frictionally moving the friction means or the friction plate along the outer surface of the dust collection means or the dust collection plate, and holding means for holding the dust collection means or the dust collection plate. The dust collecting means or the dust collecting plate is made of a material that is positively charged or a material that is negatively charged for each row, and removes all dust in the fluid passing through the row of the dust collecting means or the dust collecting plate. , And can be efficiently adsorbed and collected on a dust collecting means or a dust collecting plate charged to plus and minus respectively.

According to a fifth aspect of the present invention, a flexible conductive friction member is provided at a portion of the friction plate or the friction plate that comes into contact with the dust collection device or the dust collection plate. The movement of the friction plate becomes smooth, and the dust collection means or the dust collection plate can be reliably charged by stable friction.

According to a sixth aspect of the present invention, an insulating substance is provided on the outer peripheral surface of the holding means for holding the dust collecting means or the dust collecting plate, and the static electricity charged on the dust collecting means or the dust collecting plate is provided. And it is possible to secure stable withstand voltage.

According to a seventh aspect of the present invention, the dust collecting means or the holding means holding the dust collecting plate is provided with a groove for collecting dust. The moving of the friction means or the friction plate removes the dust and transports the dust. And can be collected in a groove, and can be cleaned simultaneously with electrification.

According to the present invention, the potential detecting means for detecting the potential of the dust collecting means or the dust collecting plate and the potential detected by the potential detecting means are compared with a preset reference potential. Control means for controlling the driving means when the potential is higher than the reference potential and not driving the friction means or the friction plate, and controlling the driving means when the potential is lower than the reference potential to drive the friction means or the friction plate. It is possible to save energy by eliminating useless electric power for driving the friction means or the friction plate, respectively, and to reduce frictional driving of the sliding part between the dust collection means and the friction means or the sliding part between the dust collection plate and the friction plate and to drive. Of the driving device can be reduced, and the life of each component can be prolonged.

According to the ninth aspect of the present invention, there is provided a control means for controlling the driving means and intermittently driving the friction means or the friction plate.
Alternatively, since the static electricity is not discharged by intermittent measurement, the potential at which the dust collecting means or the dust collecting plate can be collected can be maintained for a longer time, and the driving power of the friction means or the friction plate is reduced, thereby saving energy. In addition, it is possible to reduce the frictional deterioration of the sliding portion between the dust collecting means and the frictional means or the sliding portion between the dust collecting plate and the frictional plate and the driving device for driving, and to extend the life of each component.

According to a tenth aspect of the present invention, there is provided an air conditioner provided with the dust collecting device according to any one of the first to ninth aspects at a suction portion of a unit for air conditioning a space to be air conditioned. It absorbs and collects dust, does not require a power supply circuit, has little noise, and can collect fine dust. The cost is low, and it can be applied to popular models of air conditioners.

[Brief description of the drawings]

FIG. 1A is a front view illustrating a dust collector according to a first embodiment of the present invention. FIG. 1B is a side view illustrating the dust collector according to the first embodiment.

FIG. 2A is a front view showing a dust collector according to a second embodiment of the present invention. FIG.

FIG. 3 is a side view showing a dust collector according to the third embodiment.

FIG. 4 is a side view showing a friction plate portion of the dust collector according to the fourth embodiment.

FIG. 5 is a side view showing a holding unit of the dust collector according to the fifth embodiment.

FIG. 6 is an enlarged view of a main part showing a groove for collecting dust in the dust collector according to the sixth embodiment.

FIG. 7 is a front view showing a control circuit of the dust collector according to the seventh embodiment.

FIG. 8 is a schematic configuration diagram of an air conditioner equipped with the dust collection device of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 dust collecting device 2 dust collecting plate (dust collecting means) 3 friction plate (friction means) 4 driving means 5 holding means 22, 32 positively charged dust collecting plate 23, 33 negatively charged dust collecting plate 41 friction member 51 Electrical insulator 61 Groove 71 Potential detecting means 72 Control means 82 Suction unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kimiyasu Honda 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Inventor Shigehiro Sato 1006 Okadoma Kadoma Kadoma City Osaka Pref. (72) Inventor Kubo Tsuguo 1006 Kadoma, Kazuma, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. 3L051 BA01 4D054 AA08 AA13 BA06 BA20 BC09 BC21 BC40 DA04

Claims (10)

[Claims] 1. A plurality of dust collecting means provided in parallel, a friction means for rubbing an outer surface of the dust collecting means and charging static electricity,
A dust collector comprising: a driving unit that frictionally moves the friction unit along an outer surface of the dust collection unit; and a holding unit that holds the dust collection unit. 2. A flat dust collecting plate provided in plural in parallel,
A friction plate that is disposed between the dust collecting plates and frictionally charges an outer surface of the dust collecting plate to charge static electricity; a driving unit that frictionally moves the friction plate along the outer surface of the dust collecting plate; and A dust collecting device comprising: holding means for holding. 3. A dust collecting means or a dust collecting plate, wherein a positively charged one and a negatively charged one are mixed and arranged.
A dust collector according to item 1. 4. A dust collecting means or a flat dust collecting plate provided in plural and plural rows in parallel, and a friction means or a friction plate for charging static electricity by rubbing an outer surface of the dust collecting means or the dust collecting plate. A driving unit for frictionally moving the friction unit or the friction plate along an outer surface of the dust collection unit or the dust collection plate; and a holding unit for holding the friction unit or the friction plate. A dust collector, wherein the plates are made of a positively charged material or a negatively charged material for each row. 5. A friction means or a friction plate which comes into contact with and friction with a dust collecting means or a dust collecting plate, wherein a flexible conductive friction member is disposed on the portion of the friction plate or the friction plate. Item 5. A dust collector according to any one of Items 4. 6. The dust collector according to claim 1, wherein an insulating material is provided on an outer peripheral surface of the holding means. 7. The dust collecting apparatus according to claim 1, wherein a groove for collecting dust is provided in the holding means. 8. A potential detecting means for detecting a potential of the dust collecting means or the dust collecting plate, and a potential detected by the potential detecting means is compared with a preset reference potential, and when the potential is higher than the reference potential. And a control means for controlling the driving means to stop driving the friction means or the friction plate, and controlling the driving means to drive the friction means or the friction plate when the potential is lower than the reference potential. The dust collector according to any one of claims 1 to 7. 9. The dust collector according to claim 1, further comprising control means for controlling the driving means to drive the friction means or the friction plate intermittently. 10. An air conditioner, wherein the dust collector according to any one of claims 1 to 9 is detachably provided at a suction part of an air conditioning unit for air conditioning a space to be air conditioned.