JP2002126574A - Static electricity generation type dust collector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a static electricity generation type dust collector which does not need a power source part used in an electric precipitator, is free of a pressure loss generated in an HEPA filter, and can collect fine particles at a low cost. SOLUTION: Nylon films 2 which are swung in relation to a frame 4 by the supply of air and electrified by the mutual friction are fixed closely to each other through a fixture 3 so that the films 2 are rubbed with each other when air is sucked to be electrified. By introducing air into the electrification part, dust in air is attracted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static electricity generating type dust collecting apparatus which does not require a plurality of expensive electric circuits such as an electric dust collector and generates dust by generating static electricity by friction. In particular, the present invention relates to a static electricity-generating type dust collector capable of effectively removing particulate air pollutants and the like.

[0002]

2. Description of the Related Art There is an electric dust collector as a dust collecting method generally employed for purifying indoor air. Electric dust collector
There is a two-stage charging type including an ionization unit for charging dust and a dust collection unit for adsorbing and collecting the charged dust. This is because the ionization part is formed of a needle electrode or a tungsten wire and a parallel electrode, and a high direct current voltage is applied to the needle electrode or the tungsten wire to generate corona discharge and fill positive ions. Then, when dust enters while the positive ions are full, the particles are immediately positively charged.
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. But,
Such an electrostatic precipitator requires a power source and thus is expensive, and generates a high voltage, which may cause a spark discharge or an electric shock.

[0003] Another dust collecting method is a filter method. In the filter method, there are a type in which particles having a size of several microns or less can hardly be collected and a type having a high performance such as a HEPA filter having high ventilation resistance and high cost.

[0004]

SUMMARY OF THE INVENTION The present invention does not require a power source portion such as the above-mentioned electrostatic precipitator, does not require a pressure loss such as a HEPA filter, and can collect fine particles. Provide dust device.

[0005]

According to a first aspect of the present invention, there is provided a static electricity generating type dust collecting apparatus according to the present invention, wherein at least two or more movable charging members are arranged on a frame, The movable charging members are configured to generate friction with each other by blowing air to generate static electricity and collect dust.

According to a second aspect of the present invention, there is provided a static electricity generating type dust collecting apparatus according to the first aspect, wherein one of the charging members is fixed and the other movable charging member is fixed. Wherein the charging member is rubbed to generate static electricity.

According to a third aspect of the present invention, in the static electricity generating type dust collecting apparatus of the present invention, the frame and the fixed charging member are integrated, and the other movable charging member is brought into contact with the integrated fixed charging member by blowing air. It is characterized by being arranged in.

According to a fourth aspect of the present invention, there is provided a static electricity generating type dust collecting apparatus according to the second or third aspect, wherein the movable charging member and the fixed charging member are made of different materials. It is characterized by having been established.

According to a fifth aspect of the present invention, there is provided a static electricity generating type dust collecting apparatus according to the first to fourth aspects, wherein the movable charging member is connected with a flexible support and fixed. It is characterized by.

According to a sixth aspect of the present invention, there is provided a static electricity generating type dust collecting apparatus according to the first to fifth aspects, wherein an insulating material is disposed on an outer peripheral surface of the frame. It is characterized by.

According to a seventh aspect of the present invention, there is provided a static electricity-generating type dust collecting apparatus according to the present invention, wherein a fixed charging member serving as a stationary dust collecting portion, and a movable portion and a movable portion which are brought into contact with the fixed charging member to cause friction. A driving device for driving the.

According to an eighth aspect of the present invention, there is provided a static electricity-generating type dust collector according to the seventh aspect, wherein the movable part is operated intermittently and the movable part is fixed when stopped. The battery is configured to be separated from the charging member.

According to a ninth aspect of the present invention, there is provided a static electricity generating type dust collecting apparatus according to the seventh or eighth aspect, wherein the potential detecting means for detecting a potential of a fixed charging member and the electric potential detecting means. There is provided a control means for comparing the potential detected by the potential detecting means with a preset reference potential and stopping the movable part when the potential is higher than the reference potential.

According to a tenth aspect of the present invention, there is provided an air conditioner wherein the static electricity generating type dust collecting apparatus according to the first to ninth aspects is provided at a suction portion of a unit for air-conditioning a space to be air-conditioned. .

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first aspect of the present invention, at least two movable charging members are provided on a frame. As a result, the materials of the movable charging member rub against each other at the time of inhaling air, and static electricity is generated and charged. Then, when the static electricity is generated and air flows into the charged portion, dust in the air is adsorbed and collected.

According to a second aspect of the present invention, at least two or more charging members are provided on the frame, one of the charging members is fixed, and the other is fixed by the other movable charging member. The charging member is provided so as to rub.
As a result, the materials of the charging members rub against each other during the inhalation of air, and static electricity is generated and charged. Further, if the fixed charging material is plate-shaped, the probability of contact with the other movable charging member is increased, and the charged material is easily charged. Then, when the static electricity is generated and the air flows into the charged portion, dust in the air is adsorbed and collected. According to a third aspect of the present invention, the frame and the fixed charging member are integrated, and the other movable charging member is disposed so as to contact the integrated fixed charging member by blowing air. Thereby, the manufacturing time and the manufacturing cost can be reduced. According to a fourth aspect of the present invention, in the static electricity generating type dust collecting apparatus according to the second to third aspects, two types of materials separated from the charging line are provided as charging members. Thereby, the charging power when the charging members come into contact with each other and rub against each other is improved. According to a fifth aspect of the present invention, in the static electricity generating type dust collecting apparatus according to the first to fourth aspects, the movable charging members are connected by a flexible support and disposed. Thereby, when air flows in, the degree of freedom of movement of the movable charging material is increased, contact establishment with the other fixed charging material is increased, and the band power is also improved. According to a sixth aspect of the present invention, an insulating material is provided on the outer peripheral surface of the frame. This makes it difficult for static electricity charged on the charging member to escape. According to a seventh aspect of the present invention, there is provided a stationary charging member serving as a stationary dust collecting portion, a movable portion which contacts the fixed charging member to cause friction, and a driving device for driving the movable portion. It is a static electricity-generating type dust collector having the above.
As a result, the fixed charging member is continuously and strongly rubbed, so that the generated electrostatic power increases. According to an eighth aspect of the present invention, in the static electricity generation type dust collecting apparatus according to the seventh aspect, the movable portion is operated intermittently,
The movable portion is configured to be separated from the fixed charging member when stopped. This makes it difficult for the generated static electricity to escape from the movable section to the driving device for driving the movable section, and increases the static electricity charged to the fixed charging section.
According to a ninth aspect of the present invention, in the static electricity generation type dust collecting apparatus according to the seventh or eighth aspect, a potential detecting means for detecting a potential of the fixed charging member and a potential detected by the potential detecting means. Is compared with a preset reference potential, and has a control means for stopping the movable portion when it is higher than the reference potential. As a result, wasteful electric power is eliminated, which has an energy-saving effect, and a stationary charging member serving as a stationary dust collecting portion, and a movable portion causing contact operation with the fixed charging member and a drive for driving the movable portion. Since the deterioration of the device can be prevented, the life of each component can be extended. Further, if the movable portion is separated from the fixed charging member when the movable portion is stopped, the same effect as that of the eighth aspect can be obtained.

According to a tenth aspect of the present invention, there is provided an air conditioner wherein the static electricity generating type dust collecting apparatus according to the first to ninth aspects is provided at a suction portion of a unit for air-conditioning a space to be air-conditioned. .

[0018]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a perspective view of a static electricity generating type dust collecting apparatus of the present invention. The static electricity generating type dust collecting apparatus 1 has a strip-shaped nylon film 2 which easily charges static electricity on a charging section, and a fixture 3.
The films are densely arranged and arranged so that the films come into contact with each other and rub against each other. With this configuration, the two films 2 are rubbed to generate static electricity, and the dust is adsorbed and collected. FIG. 2 is an enlarged view of the first charged portion. FIG. 3 is an enlarged view of another charging unit. A nylon film 2 that moves flexibly by blowing air is disposed on one of the charged portions, and a nylon sheet 5 to which the other charged portion is fixed is disposed, and the blown air causes the nylon film 2 to come into contact with the nylon sheet 5 and rub. It is configured as follows. By using the nylon sheet 5 having one of the charged portions fixed as described above, the area of the charged portion can be increased, the probability of contact with the nylon film 2 is increased, the charge amount is improved, and the dust collecting ability is also improved. can do.

FIG. 4A is a perspective view of a static electricity generating type dust collecting apparatus in which a frame and a fixed charging portion are integrated. A curved nylon sheet 5 is integrated with the frame 4 and arranged on the windward side so that the other nylon film 2 comes into contact with the nylon sheet 5 by blowing air. By integrating the frame 4 and the nylon sheet 5, the manufacturing time and the manufacturing cost can be reduced. FIG. 4B is a side view of the integrated charging portion.

FIG. 5 is an enlarged view of another charged portion. By arranging the nylon film 2 on the windward side with a flexible support 7, the degree of freedom of movement of the nylon film 2 when air flows in increases, and the probability of contact with the other nylon sheet 5 increases. Band power also improves.

FIG. 6 is a front view of a static electricity generating type dust collecting apparatus in which insulating rubber is provided on the outer peripheral surface of the frame. By disposing the insulating rubber on the outer peripheral surface of the frame, it is possible to prevent static electricity charged in the charging unit from escaping from the static electricity-generating type dust collecting device and prevent the dust collecting performance from being lowered.

The dust collected on the charged portion of the static electricity generating type dust collecting apparatus of the present invention can easily recover its initial dust collecting performance by washing the static electricity generating type dust collecting apparatus with water. In addition, the material of the dust collecting portion is preferably, for example, nylon and cotton, nylon and polyester, nylon and acrylic, acrylic and cotton, polyester and cotton, etc. can get.

(Embodiment 2) FIG. 7 is a perspective view of a static electricity generating type dust collecting apparatus 10 provided with a movable portion according to the present invention. A movable portion 13 having a polyester sheet 12 adhered to the surface thereof is movable with respect to a stationary charging member 11 made of a nylon mesh formed into a plate shape and serving as a dust collecting portion. Driving device 14 for driving unit 13
It is composed of As a result, static electricity generated by the contact between the fixed charging member 11 and the polyester 12 adhered to the movable portion 13 is charged to the fixed charging member 11, and air flows into the portion where the static electricity is charged, thereby causing Dust is adsorbed and collected. In addition, when the fixed charging member 11 is continuously and strongly rubbed, the generated electrostatic power increases, and the dust collection performance is improved.

FIG. 8 is a front view showing an example of the movable portion 13 having the polyester sheet 12 adhered to the surface. FIG.
Since the polyester sheet 12 comes into contact with the fixed charging member 11 intermittently by adopting the shapes shown in (a) to (c), static electricity charged on the charging member 11 is discharged from the polyester sheet 12 to the movable portion 13. → It becomes difficult to escape along the drive device 14. As a result, the amount of electrostatic charge on the surface of the fixed charging member 11 is hardly attenuated, and stable dust collection performance can be obtained.

FIG. 9 is a perspective view of a static electricity generating type dust collecting apparatus having a control means for stopping a movable portion. A potential detecting means 15 for detecting the potential of the charging member in the static electricity generation type dust collecting apparatus 10 and a potential detected by the potential detecting means 15 are compared with a preset reference potential. Is stopped. This eliminates the need to continuously operate the movable unit 13 and eliminates wasteful electric power, which has an energy saving effect.

Although the present embodiment has been described with reference to nylon and polyester, it goes without saying that the same effect can be obtained as long as the combinations are separated from each other.

The static electricity-generating type dust collectors shown in the first and second embodiments are preferably attached to the inlet of an air conditioner because they have a small pressure loss and can adsorb and collect fine particles, and are inexpensive. Because it is possible, it can be attached to popular models.

[0028]

As is clear from the above embodiment, the present invention is to adsorb and collect dust by electrostatic force. According to the invention of the present application, a power supply circuit is not required, there is almost no noise, and fine dust can be collected.

Further, according to the present invention, the amount of static electricity is improved with a simple structure, and fine dust can be collected.

Further, the cost is low and the invention can be applied to popular models of air conditioners.

[Brief description of the drawings]

FIG. 1 is a perspective view of a static electricity generation type dust collector according to a first embodiment.

FIG. 2 is an enlarged view of a main part of a charging unit according to the first embodiment.

FIG. 3 is an enlarged view of a main part of another charging unit in the first embodiment.

FIG. 4 (a) is a perspective view of a static electricity generating type dust collecting device in which a frame and a fixed charging portion are integrated. (B) is a side view of a static electricity generating type dust collecting device in which a frame and a fixed charging portion are integrated.

FIG. 5 is an enlarged view of a main part of another charging unit in the first embodiment.

FIG. 6 is a front view of a static electricity generation type dust collector in which insulating rubber is disposed on an outer peripheral surface of a frame.

FIG. 7 is a perspective view showing an outline of the configuration of a static electricity generation type dust collecting apparatus according to a second embodiment.

FIG. 8 is a schematic view showing another movable portion according to the second embodiment.

FIG. 9 is a schematic diagram of a configuration of an electrostatic generation type dust collector having a control unit for stopping a movable unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Static electricity generation type dust collection device 2 Nylon film 3 Fixture 4 Frame 5 Nylon sheet 7 Support part 8 Insulation rubber 10 Static electricity generation type dust collection device 11 Fixed charging member 12 Polyester sheet 13 Moving part 14 Drive device 15 Potential detection means 16 Control Department

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshinori Kobayashi 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. 72) Inventor Kubo Tsugio 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F term (reference) 4D054 AA11 BA20 CA18 EA11 EA24 EA30

Claims (10)

[Claims] 1. A method according to claim 1, wherein a plurality of movable charging members capable of swinging with respect to the airflow are provided in the frame, and the charging members generate friction by blowing air, generate static electricity, and collect dust. Characteristic static electricity generation type dust collector. 2. A stationary charging member and a movable charging member swingable with respect to air flow, wherein the stationary charging member and the movable charging member are arranged on a frame so as to generate static electricity by friction. Static electricity generation type dust collector. 3. The static electricity-generating type dust collecting apparatus according to claim 2, wherein the frame and the fixed charging member are integrated, and the movable charging member is fixed so as to contact the integrated charging member by blowing air. . 4. The material of the movable charging member and the material of the fixed charging member are different from each other.
The static electricity generation type dust collector described in the above. 5. The static electricity-generating type dust collector according to claim 1, wherein the movable charging member is connected to the frame by a flexible support and fixed. 6. The static electricity-generating dust collector according to claim 1, wherein an insulating material is provided on an outer peripheral surface of the frame. 7. A static electricity-generating type dust collecting apparatus comprising: a fixed charging member serving as a dust collecting portion; a movable portion which is brought into contact with the fixed charging member to cause friction; and a driving device for driving the movable portion. 8. The static electricity-generating type dust collecting apparatus according to claim 7, wherein the movable portion is operated intermittently, and the movable portion is separated from the fixed charging member when the movable portion is stopped. 9. A potential detecting means for detecting the potential of the fixed charging member, and a potential detected by the potential detecting means is compared with a preset reference potential. The static electricity generation type dust collecting apparatus according to claim 7 or 8, further comprising control means for stopping. 10. An air conditioner, wherein the static electricity generating type dust collecting device according to claim 1 is provided in an air suction portion of a unit for air conditioning a space to be air conditioned.