WO2016117865A1

WO2016117865A1 - Electrostatic precipitator device for air conditioner

Info

Publication number: WO2016117865A1
Application number: PCT/KR2016/000212
Authority: WO
Inventors: 백태일; 박윤철
Original assignee: 주식회사 제4기한국
Priority date: 2015-01-23
Filing date: 2016-01-11
Publication date: 2016-07-28
Also published as: KR101754712B1; KR20160091151A

Abstract

According to an embodiment of the present invention, an electrostatic precipitator device may include: a housing having an inlet formed in one side thereof, an outlet formed in the other side thereof, and an inner passage communicating with the inlet and the outlet and providing a passage for air that is introduced through the inlet to be discharged through the outlet; a first charging unit installed in the inner passage to emit multiple electrons so as to be able to charge and impart a negative (-) polarity to dust particles in the air within the inner passage; a second charging unit installed in the inner passage and disposed between the first charging unit and the outlet to emit multiple electrons so as to be able to charge and impart a negative (-) polarity to dust particles in the air within the inner passage; and a dust collecting unit installed in the inner passage and disposed between the second charging unit and the outlet to be capable of collecting the charged dust particles.

Description

Electrostatic precipitator for air conditioner

The present invention relates to an electrostatic precipitator for an air conditioner, and more particularly, a high voltage plate of a dust collector charged with negative polarity (charged) by two charge parts, a first charge part and a second charge part. The present invention relates to an electrostatic precipitator for an air conditioner capable of comfortably maintaining indoor air of a building by collecting dust.

In general, the air conditioning dust collection equipment of a large office building collects and circulates air by circulating a contaminant suspended in the air sucked through the suction duct using a combination of a prefilter and a hepa filter or a combination of a prefilter and a medium filter. It is purifying.

However, when used for a long time, the pores are blocked by fine dust between the prefilter and the HEPA filter or the prefilter and the medium filter, so that the differential pressure is generated and the ability to filter the fine dust is also reduced. In addition, if the size of the fine dust is less than 0.3 micrometers, there is a problem that can not be filtered by the HEPA filter.

An object of the present invention is to provide an electrostatic precipitator for an air conditioner capable of collecting fine dust particles that are not filtered even by a combination of a prefilter and a hepa filter or a combination of a prefilter and a medium filter.

Other problems to be solved by the present invention will become more apparent from the following detailed description and drawings.

According to an embodiment of the present invention, the electrostatic precipitator includes an inlet formed on one side, a discharge port formed on the other side, and a passage communicating with the inlet and the discharge port and allowing air introduced into the inlet to be discharged to the discharge port. A housing having an inner passage providing a; A first charge part installed in the inner passage to discharge a plurality of electrons to charge dust particles in the air of the inner passage in a negative polarity; A second charge part disposed in the inner passage and disposed between the first charge portion and the discharge port to discharge a plurality of electrons to charge dust particles in the air of the inner passage with negative polarity; And a dust collecting part installed in the inner passage and disposed between the second charged part and the discharge port to collect the charged dust particles.

The second charge unit may include a second counter electrode disposed between the first charge unit and the discharge hole and having a negative polarity; A second discharge electrode disposed between the first charge portion and the second counter electrode and having a positive polarity; And an auxiliary electrode disposed between the first charge part and the second discharge electrode and electrically connected to the second discharge electrode.

The second discharge electrode, the second counter electrode and the auxiliary electrode may have a flat mesh structure.

The first charging unit may include: a plurality of first counter electrodes spaced apart from each other along a width direction of the inner passage, and having a negative polarity; And a plurality of first discharge electrodes disposed between the plurality of first counter electrodes, respectively, and having a positive polarity.

The longitudinal cross-sectional area of the first counter electrode in the longitudinal direction of the inner passage may be greater than the longitudinal cross-sectional area of the first discharge electrode.

The first counter electrode may have a flat shape having a width disposed in a length direction of the inner passage.

The first discharge electrode may have a straight wire shape.

The first charging unit may include an insulating member that is electrically insulated and has a plurality of insertion grooves formed at one side thereof to be inserted with one end of the first counter electrode spaced apart along the width direction of the inner passage; A connection frame installed at the insulation member, disposed at one side of the insertion groove, and connected to one end of the first discharge electrode; And an elastic member disposed between the connection frame and the first discharge electrode to connect the connection frame and the first discharge electrode and to provide an elastic force to the first discharge electrode.

The elastic member may be formed with a locking ring capable of locking one end of the first discharge electrode.

The dust collecting part may include: a plurality of high voltage plates spaced apart from each other along a width direction of the inner passage and having a positive polarity; And a plurality of low voltage plates disposed along the width direction of the inner passage, respectively disposed between the plurality of high voltage plates, and having a negative polarity.

The dust collector, the high voltage plate connecting member for connecting the high voltage plate; And a low voltage plate connecting member for connecting the low voltage plate; may be provided.

The high voltage plate may have a high voltage plate through hole through which the low voltage plate connection member is inserted into and in contact with the high voltage plate.

The low voltage plate may have a low voltage plate through hole through which the high voltage plate connection member is inserted into and in contact with the low voltage plate.

The electrostatic precipitator is installed in the inner passage, disposed between the inlet and the first charging unit, the filter unit capable of filtering dust particles of a predetermined particle size or more from the dust particles contained in the air introduced through the inlet It may further include;

The electrostatic precipitator may include: a voltage supply unit electrically connected to the first charging unit, the second charging unit, and the dust collecting unit, and configured to supply a voltage to the first charging unit, the second charging unit, and the dust collecting unit; A detection sensor disposed between the dust collector and the discharge port and disposed in the inner passage and capable of transmitting a detection signal measuring a concentration value of dust particles contained in the air of the inner passage; And a controller electrically connected to the sensing sensor and the voltage supply unit, and configured to adjust a voltage supplied by the voltage supply unit to the first charge unit, the second charge unit, and the dust collector according to the concentration value. have.

The voltage supply unit may include a DC voltage source for supplying a DC voltage and a pulse voltage source for supplying a voltage for generating a pulse.

Referring to the effect of the electrostatic precipitator for an air conditioner according to the present invention.

First, since the dust particles are charged (charged) by the first charged part and the second charged part, that is, the two charged parts, there is an advantage of increasing the charging rate of the dust particles contained in the air.

Second, there is an advantage that can reduce the electrical energy consumed by adjusting the output of the voltage supply according to the concentration of dust particles contained in the air.

Third, there is an advantage that can collect fine dust of less than 0.3 micrometer without using the HEPA filter.

1 is a perspective view of an electrostatic precipitator for an air conditioner according to an embodiment of the present invention.

2 is a cross-sectional view of an electrostatic precipitator for an air conditioner according to an embodiment of the present invention.

FIG. 3 is a view illustrating a first charged part, a second charged part, and a dust collecting part of the electrostatic precipitator for the air conditioner of FIG. 1.

4 is a front perspective view of the first charged part of FIG. 3.

5 is a rear perspective view of the first charged part of FIG. 3.

6 is a side perspective view of the first charged part of FIG. 3.

FIG. 7 is a detailed view of the second charge unit of FIG. 3.

8 is a perspective view of the dust collecting part of FIG. 3.

9 is a cross-sectional view of the dust collecting part of FIG. 3.

FIG. 10 is a view illustrating a dust collection box of the electrostatic precipitator for the air conditioner of FIG. 1.

11 is a schematic view for explaining the principle of the electrostatic precipitator for an air conditioner according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIGS. 1 to 11. Embodiments of the invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described below. These embodiments are provided to explain in detail the present invention to those skilled in the art. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a more clear description.

1 is a perspective view of an electrostatic precipitator for an air conditioner according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the electrostatic precipitator for an air conditioner according to an embodiment of the present invention.

1 and 2, the electric dust collector 1 for the air conditioner according to the present embodiment is for removing dust contained in the air passing through the air conditioner of the building, the housing 10, the filter unit ( 100), the first charging unit 200, the second charging unit 300, the dust collecting unit 400 and the voltage supply unit 500 may be included.

The filter unit 100 of the electrostatic precipitator 1 filters out dust particles having a large particle diameter among dust particles included in air introduced into the housing 10. The fine dust particles passing through the filter part 100 are charged (charged) to a certain polarity (−) by the first charged part 200 or the second charged part 300. The dust particles charged (charged) with a predetermined polarity (−) are collected by the high voltage plate 410 conductive with the opposite polarity (+) of the dust collector 400.

The housing 10 is connected to an air conditioner (not shown) of the building, inflows air from the air conditioner, and discharges the purified air to the air conditioner. The housing 10 may include an inlet 12 formed at one side, an outlet 14 formed at the other side, and an inner passage 16. External air may enter the inner passage 16 of the housing 10 through the inlet 12 of the housing 10, and the air purified in the inner passage 16 may discharge the outlet 14 of the housing 10. It can be discharged through.

First and

second guide slots

17a and 18b,

second guide slots

17b and 18b, and

third guide slots

17c and 18c are disposed on the upper and lower sides of the inner passage 16 of the housing 10, respectively. Are spaced apart in the longitudinal direction. The

first guide slots

17a and 18b, the

second guide slots

17b and 18b, and the

third guide slots

17c and 18c may be the first guide member 206, the second guide member 306, and the

second guide slot

17c and 18c. It is fastened to the three guide member 406 may guide the entry and exit of the first charge portion 200, the second charge portion 300 and the dust collector 400.

The lower part of the housing 10 communicates with the internal space of the housing 10, and a collection box 900 having an internal space having an open top may be installed.

The filter unit 100 is installed in the inner passage 16 of the housing 10 to filter out the dust particles 3 having a large particle size among the dust particles 3 included in the air introduced into the inner passage 16, and free of charge. The filter may include a pre-filter 110 and a medium-filter 120.

The prefilter 110 may filter the dust particles 3 contained in the air introduced into the inner passage 16 as a filter of a fiber mat type. The medium filter 120 has a fine particle diameter and is disposed at the rear of the prefilter 110 in the advancing direction of air and thus is not filtered by the prefilter 110 (that is, the dust particles passing through the prefilter 110). Can be filtered secondarily.

FIG. 3 is a view showing a first charged part, a second charged part and a dust collecting part of the electrostatic precipitator for the air conditioner of FIG. 1, FIG. 4 is a front perspective view of the first charged part of FIG. 3, and FIG. A rear perspective view of the first charged part, and FIG. 6 is a side perspective view of the first charged part of FIG. 3.

3 to 6, the first charging unit 200 of the electrostatic precipitator 1 for an air conditioner includes a first charging case 205, a plurality of first discharge electrodes 210, and a plurality of first facing parts. The electrode 220, the upper insulating member 230, the upper connecting frame 232, the upper elastic member 234, the lower insulating member 240, the lower connecting frame 242 and the lower elastic member 244 may be included. have.

The first charging unit 200 may be installed in the inner passage 16 of the housing 10 and may be disposed between the inlet 12 and the outlet 14. The first charging unit 200 may discharge a plurality of electrons to charge (charge) the dust particles 3 included in the air of the inner passage 16 to a predetermined polarity (−).

The first charging case 205 can enter and exit the inner passage 16 of the housing 10 and has an inner space that is open in the longitudinal direction of the inner passage 16. First and second guide members 206 are installed on the upper and lower ends of the first charging case 205, and the first guide member 206 is fastened to the

first guide slots

17a and 18b so that the first guide slots 17a, By moving in the longitudinal direction of 18b), it is possible to enter and exit the inner passage 16 of the housing 10.

The first discharge electrodes 210 may be installed in the inner space of the first charging case 205 and may be spaced apart from each other along the width direction of the inner passage 16 of the housing 10. The first discharge electrode 210 may be disposed between the plurality of first counter electrodes 220. The first discharge electrode 210 forms a positive (+) electrode and may have a straight thin wire shape. In this case, a high voltage pulse may be supplied to the first discharge electrode 210 by the voltage supply unit 500.

The first counter electrode 220 may be installed in the inner space of the first charging case 205 and may be spaced apart from each other along the width direction of the inner passage 16 of the housing 10. The first counter electrode 220 forms a negative electrode, and the first counter electrode 220 may have a flat plate shape, and the width of the first counter electrode 220 is an inner passage of the housing 10. It may be arranged in the longitudinal direction of (16). The first counter electrode 220 may be grounded.

When a high voltage pulse is applied to the first discharge electrode 210, electrons may be emitted from the first discharge electrode 210. The electrons thus emitted charge the dust particles 3 contained in the air flowing through the inner passage 16 of the housing 10 to a predetermined polarity (−). In addition, the current begins to flow due to the high potential difference formed between the first discharge electrode 210 and the first counter electrode 220, and a corona discharge occurs to cause dust contained in the air flowing through the inner passage 16 of the housing 10. The particles 3 can also be charged with a constant polarity (-). The dust particles 3 charged at a predetermined polarity (−) may be collected by the coulomb force into the high voltage plate 410 which is a relatively plus side in the dust collector 400.

The upper insulating member 230 may be disposed in the longitudinal direction along the width direction of the inner passage 16 of the housing 10. The upper insulating member 230 is formed by recessing a lower surface thereof and has a plurality of upper insertion grooves 136 into which the upper end of the first counter electrode 220 is inserted, and the upper insertion groove 136 has an inner passage of the housing 10. It may be arranged spaced apart from each other in the width direction of (16). The upper insulating member 230 may be electrically insulated such as plastic, wood, or the like.

The upper connection frame 232 may be installed on one side of the upper insulating member 230 and may be disposed above the upper insertion groove 136. The upper connection frame 232 may be an electrical conductor such as iron or copper, and the upper end of the first discharge electrode 210 may be electrically connected to the upper connection frame 232.

The upper elastic member 234 is disposed between the upper connection frame 232 and the first discharge electrode 210 and may be connected to the upper connection frame 232 and the first discharge electrode 210. The upper elastic member 234 may provide an elastic force to the first discharge electrode 210. The upper elastic member 234 may be a coil spring made of a metal material, and the upper elastic member 234 may have a hook 134a at which the upper end of the first discharge electrode 210 is locked.

As illustrated in FIG. 5, the upper coupling frame 238 may be installed on the other side of the upper insulating member 230 and disposed on an upper end of the first counter electrode 220. The upper coupling frame 238 may use an electrical conductor such as iron and copper, and may electrically connect the first counter electrodes 220.

The lower insulating member 240 may be installed under the upper insulating member 140, and the length direction may be disposed along the width direction of the inner passage 16 of the housing 10. The lower insulating member 240 is formed by recessing an upper surface thereof and has a plurality of lower insertion grooves 146 into which the lower end of the first counter electrode 220 is inserted, and the lower insertion groove 146 is formed in the upper insertion groove 136. They may be formed to face each other and may be spaced apart from each other in the width direction of the inner passage 16 of the housing 10. The lower insulating member 240 may be an electrically insulator such as plastic or wood.

The lower connection frame 242 may be installed on the lower insulation member 240 and may be disposed below the lower insertion groove 146. The lower connection frame 242 may be an electric conductor such as iron or copper, and a lower end of the first discharge electrode 210 may be electrically connected to the lower connection frame 242.

The lower elastic member 244 may be disposed between the lower connection frame 242 and the first discharge electrode 210 and may be connected to the lower connection frame 242 and the first discharge electrode 210. The lower elastic member 244 may provide an elastic force to the first discharge electrode 210. The lower elastic member 244 may be a metal coil spring, and the lower elastic member 244 may have a hook 144a on which the lower end of the first discharge electrode 210 is engaged.

The lower coupling frame 248 may be installed at the other side of the lower insulating member 240 and disposed at the lower end of the first counter electrode 220 as shown in FIG. 5. The lower coupling frame 248 may use an electrical conductor such as iron and copper, and may electrically connect the first counter electrodes 220.

FIG. 7 is a detailed view of the second charge unit of FIG. 3. Referring to FIG. 7, the second charge unit 300 may include a second discharge electrode 310, a second counter electrode 320, and an auxiliary electrode 330.

The second charged part 300 may be installed in the inner passage 16 of the housing 10, and may be disposed between the first charged part 200 and the dust collecting part 400. The second charged part 300 may emit a plurality of electrons and charge (charge) the dust particles 3 that are not charged (charged) by the first charged part 200 with a predetermined polarity (−).

The auxiliary electrode 330, the second discharge electrode 310, and the second counter electrode 320 may be installed in the longitudinal direction of the inner passage 16 of the housing 10. The second guide member 306 may be installed at the upper end of the second discharge electrode 310, and the second guide member 306 may be installed at the lower end of the second discharge electrode 310 and the second counter electrode 320. have. The second guide member 306 may be fastened to the

second guide slots

17b and 18b and move in the longitudinal direction of the

second guide slots

17b and 18b to enter and exit the inner passage 16 of the housing 10. .

The second discharge electrode 310 may be installed in the inner passage 16 of the housing 10 and disposed along the width direction of the inner passage 16 of the housing 10. The second discharge electrode 310 may be located between the auxiliary electrode 330 and the second counter electrode 320. The second discharge electrode 310 may form a positive electrode and may have a flat plate shape having a mesh structure. In this case, a high voltage pulse may be applied to the second discharge electrode 310 by the voltage supply unit 500.

The second counter electrode 320 may be installed in the inner passage 16 of the housing 10 and disposed along the width direction of the inner passage 16 of the housing 10. The second counter electrode 320 may be installed between the second discharge electrode 310 and the dust collecting part 400. The second counter electrode 320 forms a negative electrode and may be configured as a flat plate having a mesh structure. The second counter electrode 320 may be grounded.

When a high voltage pulse is applied to the second discharge electrode 310, electrons may be emitted from the second discharge electrode 310. The electrons thus emitted charge the dust particles 3 contained in the air flowing through the inner passage 16 of the housing 10 to a predetermined polarity (−). In addition, the dust particles that are not charged (charged) by the first charge unit 100 due to the corona discharge occurs as a current begins to flow due to the high potential difference formed between the second discharge electrode 310 and the second counter electrode 320. (3) may be charged with a certain polarity (-).

The dust particles 3 charged at a predetermined polarity (−) may be collected by the electrical attraction force (coulomb force) into the high voltage plate 410 of the plus side in the dust collector 400. An electrical non-conductive insulating rod 350 may be installed between the second discharge electrode 310 and the second counter electrode 320, and the insulating bar 350 may face the second discharge electrode 310 and the second counter electrode. The electrode 320 may be connected.

The auxiliary electrode 330 may be installed in the inner space of the second charge case 305 and may be disposed between the first charge part 100 and the second discharge electrode 310. The auxiliary electrode 330 may be disposed along the width direction of the inner passage 16 of the housing 10. The auxiliary electrode 330 may be electrically connected to the second discharge electrode 310 through the connecting rod 340, and the auxiliary electrode 330 may have the same polarity (+) as that of the second discharge electrode 310. The auxiliary electrode 330 may have a flat plate shape having a mesh structure. The connecting rod 340 may be used as an electrical conductor such as copper, iron.

Therefore, the dust particles 3 charged (charged) with negative (-) polarity in the first charged part 200 are collected by the auxiliary electrode 330, and the dust particles not charged in the first charged part 200. (3) is charged (charged) with negative polarity while passing between the second discharge electrode 310 and the second counter electrode 320.

8 is a perspective view of the dust collecting part of FIG. 3, and FIG. 9 is a cross-sectional view of the dust collecting part of FIG. 3.

8 and 9, the dust collecting part 400 collects the dust particles 3 charged (charged) to a certain polarity (−) by the first charged part 200 or the second charged part 300. And a high voltage plate 410 and a low voltage plate 420.

The dust collecting case 405 is accessible to the inner passage 16 of the housing 10 and has an inner space that is open in the longitudinal direction of the inner passage 16. The high voltage plate 410 and the low voltage plate 420 may be alternately installed in the inner space of the dust collecting case 405 along the width direction of the inner passage 16.

Third and third guide members 406 are installed at the upper and lower ends of the dust collecting case 405, and the third guide member 406 is fastened to the

third guide slots

17c and 18c of the housing 10 to be connected to the third guide slot. The inner passage 16 of the housing 10 can enter and exit by moving in the longitudinal direction of the 17c and 18c.

On both sides of the dust collecting case 405, a high voltage insertion hole 407 through which the high voltage plate connecting member 415 may be inserted may be formed. In addition, the high voltage plate connecting member 415 may be insulated from the dust collecting case 405 by inserting the insulating member 409 mounted in the high voltage insertion hole 407. The low voltage insertion hole 408 through which the low voltage plate connecting member 425 may be inserted may be formed on both side surfaces of the dust collecting case 405.

A plurality of high voltage plates 410 may be spaced apart from each other along the width direction of the inner passage 16 of the housing 10 in the inner space of the dust collecting case 405. The high voltage plate 410 may be electrically connected to each other through the high voltage plate connecting member 415, and the high voltage plate 410 may have a high voltage plate through hole 417 through which the low voltage plate connecting member 425 may pass. Can be.

Since the low voltage plate connecting member 425 passes through the high voltage plate through hole 417, the high voltage plate 410 and the low voltage plate 420 may be insulated from each other. The longitudinal area of the high voltage plate through hole 417 may be greater than the longitudinal area of the low voltage plate connecting member 425. The high voltage plate 410 has a positive polarity through the voltage plate connecting member 415 electrically connected to the voltage supply unit 500.

The low voltage plates 420 may be spaced apart from each other in the width direction of the inner passage 16 of the housing 10 in the inner space of the dust collecting case 405, and may be disposed between the high voltage plates 410. The low voltage plate 420 may be electrically connected to each other through the low voltage plate connecting member 425, and the low voltage plate 420 may include a low voltage plate through hole 427 through which the high voltage plate connecting member 415 may pass. Can be.

As the high voltage plate connecting member 415 passes through the low voltage plate through hole 427, the high voltage plate 410 and the low voltage plate 420 may be insulated from each other. The longitudinal area of the low voltage plate through hole 427 may be greater than the longitudinal area of the high voltage plate connecting member 415. The low voltage plate 420 has a negative polarity through the low voltage plate connecting member 425 electrically connected to the voltage supply unit 500. In this case, the low voltage plate 420 may be grounded.

Accordingly, the dust particles 3 charged (charged) to the negative (-) polarity by the first charged part 200 or the second charged part 300 are separated from the dust collecting part 400 by an electrical attraction force (coulomb force). The high voltage plate 410 is collected. Accordingly, the dust particles 3 contained in the air flowing through the inner passage 16 of the housing 10 can be removed.

The voltage supply unit 500 is electrically connected to the first charge unit 200, the second charge unit 300, and the dust collector 400, and the first charge unit 200, the second charge unit 300, and the dust collector ( A high voltage (high voltage pulse) may be applied to 400. The voltage supply unit 500 may include a DC voltage source (not shown) for supplying a DC voltage and a pulse voltage source (not shown) for supplying a voltage for generating a pulse.

The voltage supply unit 500 may apply a high frequency voltage having a frequency of 25 [KHz] or more and a voltage of 25 [kV] or more to the first charge part 200 and the second charge part 300. In addition, the voltage supply unit 500 may apply a high frequency voltage having a frequency of 25 [KHz] or more and a voltage of 10 [kV] or more to the dust collector 400. By doing in this way, fine dust of 0.3 [micrometer] or less can be collected.

10 is a view showing the dust collection box of the electrostatic precipitator for the air conditioner of FIG. Referring to FIG. 10, the electrostatic precipitator 1 for an air conditioner according to the present embodiment may further include a collection box 900.

First, the lower surface of the housing 10 corresponding to the filter part 100, the second charge part 300, and the dust collecting part 400 is disposed in the first hole 19a, the second hole 19b, and the third hole in the vertical direction. 19c are respectively formed through.

The collection box 900 may include a filter collection box 910, a second charge collection box 920, and a dust collection unit collection 930. The filter part collection box 910 is for removing dust collected in the filter part 100, and is installed at a lower part of the housing 10 and may be disposed at a lower part of the first hole 19a.

The second charge collection container 920 is for removing dust collected in the auxiliary electrode 330 of the second charge unit 300. The second charge collection container 920 is installed at a lower portion of the housing 10 and is disposed at a lower portion of the second hole 19b. Can be arranged.

The dust collector collection box 930 is for removing dust particles collected in the dust collector 400 and may be installed at the lower portion of the housing 10 and disposed at the lower portion of the third hole 19c.

By using the collection box 930, dust collected in the filter part 100, the second charge part 300, and the dust collecting part 400 may be easily removed.

11 is a schematic view for explaining the principle of the electrostatic precipitator for an air conditioner according to an embodiment of the present invention. Referring to FIG. 11, the electrostatic precipitator 1 for an air conditioner according to the present embodiment may further include a detection sensor 600, a display unit 700, and a controller 800.

The detection sensor 600 may be installed in the inner passage 16 of the housing 10, and may be disposed between the dust collecting unit 400 and the discharge port 14 of the housing 10. The sensing processor 600 may transmit a sensing signal measuring the concentration value of the dust contained in the air of the inner passage 16 to the controller 800.

The display unit 700 may be installed at an exterior such as an office, a front door, or a lobby, and display the concentration value of dust measured by the sensor 600 in real time. The display unit 700 may be a computer or a smartphone.

The control unit 800 is electrically connected to the voltage supply unit 500, the detection sensor 600, and the display unit 700. When the concentration value included in the detection signal transmitted by the detection sensor 600 is greater than the preset concentration value, the dust collector The voltage supply unit 500 may be controlled to increase the voltage supplied to the 400. Meanwhile, the controller 800 may control the voltage supply unit 500 to lower the voltage supplied to the dust collector 400 when the concentration value included in the detection signal transmitted by the detection sensor 600 is smaller than the preset concentration value. have. By doing so, the energy consumed by the electrostatic precipitator 1 can be reduced.

In addition, when the detection signal is transmitted from the detection sensor 600, the controller 800 may control the display unit 700 to display the concentration value included in the detection signal on the display unit 700.

Hereinafter, with reference to Figure 11 will be described the principle of the electrostatic precipitator for the air conditioner according to this embodiment.

First, air that enters through the inlet 12 of the housing 10 passes through the inner passage 16 and is discharged to the outlet 14. The filter unit 100 filters the dust particles 3 having a large particle diameter in the air of the inner passage 16, and the dust particles 3 having a small particle diameter pass through the filter unit 100.

Next, the first charged part 200 charges the dust particles 3 passing through the filter part 100 to a predetermined polarity (−).

Next, the dust particles 3 charged with the negative polarity by the first charged part 200 are adsorbed onto the auxiliary electrode 330 having the positive polarity of the second charged part 300. do. However, the dust particles 3 which are not charged by the first charging unit 200 pass through the auxiliary electrode 330 and are negative (-) by the second discharge electrode 310 and the second counter electrode 320. It is charged with the polarity of.

Next, the negative particles are charged (charged) to the negative polarity by the first charge part 200 but are not negatively adsorbed by the dust particles 3 and the second charge part 300 that are not adsorbed to the auxiliary electrode 330. The dust particles 3 charged with a negative polarity are adsorbed onto the high voltage plate 410 having a positive polarity by electrical attraction. The dust particles 3 contained in the air flowing through the inner passage 16 of the housing 10 can be removed.

Although the present invention has been described in detail with reference to preferred embodiments, other forms of embodiments are possible. Therefore, the spirit and scope of the claims set forth below are not limited to the preferred embodiments.

The present invention can be applied to various types of electrostatic precipitators.

Claims

A housing having an inlet formed at one side, an outlet formed at the other side, and an inner passage communicating with the inlet and the outlet and providing a passage for discharging air introduced into the inlet to the outlet;

A first charge part installed in the inner passage to discharge a plurality of electrons to charge dust particles in the air of the inner passage in a negative polarity;

A second charge part disposed in the inner passage and disposed between the first charge portion and the discharge port to discharge a plurality of electrons to charge dust particles in the air of the inner passage with negative polarity; And

And a dust collecting part installed in the inner passage and disposed between the second charged part and the discharge port to collect the charged dust particles.
The method according to claim 1,

The second charge portion,

A second counter electrode disposed between the first charge part and the discharge hole and having a negative polarity;

A second discharge electrode disposed between the first charge portion and the second counter electrode and having a positive polarity; And

And an auxiliary electrode disposed between the first charge portion and the second discharge electrode and electrically connected to the second discharge electrode.
The method according to claim 2,

And said second discharge electrode, said second counter electrode and said auxiliary electrode have a flat mesh structure.
The method according to claim 1,

The first charge portion,

A plurality of first counter electrodes spaced apart from each other along the width direction of the inner passage and having a negative polarity; And

And a plurality of first discharge electrodes disposed between the plurality of first counter electrodes, each having a positive polarity.

And a longitudinal cross-sectional area of the first counter electrode in the longitudinal direction of the inner passage is larger than a longitudinal cross-sectional area of the first discharge electrode.
The method according to claim 4,

The first counter electrode has a flat plate shape, the width of which is disposed in the longitudinal direction of the inner passage,

And said first discharge electrode has a straight wire shape.
The method according to claim 4,

The first charge portion,

An insulation member formed on one side thereof to have one end of the first counter electrode inserted therein and having a plurality of insertion grooves spaced apart along the width direction of the inner passage, and electrically insulated;

A connection frame installed at the insulation member, disposed at one side of the insertion groove, and connected to one end of the first discharge electrode;

And an elastic member disposed between the connection frame and the first discharge electrode to connect the connection frame and the first discharge electrode and to provide an elastic force to the first discharge electrode.
The method according to claim 6,

The elastic member,

An electrostatic precipitator having a catch ring capable of catching one end of the first discharge electrode.
The method according to claim 1,

The dust collecting unit,

A plurality of high voltage plates spaced apart from each other along the width direction of the inner passage and having a positive polarity; And

And a plurality of low voltage plates disposed along the width direction of the inner passage, respectively disposed between the plurality of high voltage plates, and having a negative polarity.
The method according to claim 8,

The dust collecting unit,

A high voltage plate connecting member connecting the high voltage plate; And

A low voltage plate connecting member for connecting the low voltage plate;

The high voltage plate has a high voltage plate through-hole through which the low voltage plate connection member is inserted into and in contact with the high voltage plate.

And the low voltage plate has a low voltage plate through hole through which the high voltage plate connection member is in contact with and inserted into the low voltage plate.
The method according to claim 1,

The electrostatic precipitator,

A voltage supply part electrically connected to the first charge part, the second charge part, and the dust collecting part and capable of supplying a voltage to the first charge part, the second charge part, and the dust collecting part;

A detection sensor disposed between the dust collector and the discharge port and disposed in the inner passage and capable of transmitting a detection signal measuring a concentration value of dust particles contained in the air of the inner passage; And

And a control unit electrically connected to the sensing sensor and the voltage supply unit, and configured to adjust a voltage supplied by the voltage supply unit to the first charging unit, the second charging unit, and the dust collecting unit according to the concentration value. Dust collector.
The method according to claim 1,

The electrostatic precipitator,

And a voltage supply part electrically connected to the first charge part, the second charge part, and the dust collecting part, and capable of supplying a voltage to the first charge part, the second charge part, and the dust collecting part.

The voltage supply unit,

An electrostatic precipitator comprising a DC voltage source for supplying a DC voltage and a pulse voltage source for supplying a voltage for pulse generation.