JP4019811B2 - air purifier - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air purifier that purifies air by removing dust, odor, and the like contained in indoor air.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been known an air purifier having a charging unit 10 ′ for charging dust, a dust collecting unit for collecting charged dust, and a blowing unit for sending air to the charging unit 10 ′ and the dust collecting unit. It has been. The charging unit 10 'of the air purifier includes a discharge unit 18 and a counter electrode unit 22', and dust contained in the air sent from the blower unit due to discharge from the discharge unit 18 toward the counter electrode unit 22 'is discharged. After being charged, the dust is collected electrically by the Coulomb force in the dust collecting part, thereby removing dust, odors and the like contained in the indoor air to clean the air.
[0003]
As shown in FIGS. 11 to 13, the charging unit 10 ′ is composed of a linear discharge unit 18 and a plate-like counter electrode unit 22 ′ arranged in parallel with the blowing direction A as shown in FIGS. 11 to 13. There are many cases. In the figure, reference numeral 15 'denotes an electrode frame that supports the discharge part 18 and the counter electrode part 22'.
[0004]
However, since the counter electrode portions 22 'in FIGS. 11 to 13 are provided separately, the rigidity is weak. When carrying the counter electrode portion 22' or cleaning dust adhering to the counter electrode portion 22 ', it is very difficult. handling difficult and also it is impossible positioning and holding the counter electrode 22 'to each other.
[0005]
Further, as shown in FIG. 14, a U-shaped counter electrode portion 22 'facing the blowing direction A is formed by pressing one conductive steel plate, and an air passage hole 26' is formed in the counter electrode portion 22 '. An air cleaner having a formed charging part 10 'is also known. In this case, although the rigidity of the discharge part 18 is certainly increased, the counter electrode part 22 'is made of a single conductive steel plate, so that the discharge from the discharge part 18 is not performed in the direction B perpendicular to the blowing direction, and the The dust contained in the air sent by the blower unit may be sent to the dust collecting unit without being charged without crossing the discharge from the discharge unit 18. As a result, the dust collection ability is reduced. Further, in the air purifier having the charging unit 10 'shown in FIG. 14, the distance L1 from the discharge unit 18 to the counter electrode 22' in the direction parallel to the blowing direction A as shown in FIG. A counter electrode part 22 'is provided so as to be longer than the distance L2 from the discharge part 18 to the counter electrode part 22' in B (for example, L1> 1.5 × L2 is set), thereby increasing the dust collection capability. However, in this case, since the distance L1 from the discharge part 18 to the counter electrode part 22 'in the direction parallel to the blowing direction A becomes considerably long, the counter electrode part 22', by extension, the charging part 10 'and the air cleaner are A new problem of upsizing arises.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and the object of the present invention is to maintain a high dust collection capacity, to increase the rigidity of the counter electrode part, to maintain the installation position of the counter electrode part, and to reduce the size. It is an object of the present invention to provide an air purifier that can be realized and can improve ventilation.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, an air cleaner according to the present invention includes a discharge unit 18 and a counter electrode unit 22, and a charging unit 10 that charges dust by discharge from the discharge unit 18 toward the counter electrode unit 22, and charged dust In the air cleaner 1 provided with the dust collecting part 11 for collecting the air and the blowing part 8 for sending air to the charging part 10 and the dust collecting part 11, the counter electrode part 22 is arranged in a direction perpendicular to the blowing direction a. The conductive plates 24 located on both sides of the discharge portion 18 and the connecting plates 25 having both end portions in the width direction connected to the end portions of the respective conductive plates 24 are formed in a substantially U-shaped cross section. The discharge portion 18 is arranged in the middle of the connection plate, and the connection plate 25 is provided with a plurality of round air passage holes 26 with the same center -to- center distance in the direction orthogonal to the width direction of the connection plate 25. disposed downstream of the air flow unit (18), between the connecting plate 25 and the discharge portion 18 With the distance L1 is larger than the distance L2 between the discharge portion 18 and the conductive plates 24, the plurality of air as hole 26, the air as hole so as to overlap with the discharge portion 18 of the connecting plate 25 in the air blowing direction Lee 26 It is characterized by providing.
[0008]
By providing the connecting plate 25 that connects the two conductive plates 24 as described above, the rigidity of the counter electrode portion 22 can be increased, and the installation position of the two conductive plates 24 can be maintained. By providing the air passage hole 26 at a position overlapping the 25 discharge portions 18, the area of the connecting plate 25 located in a direction parallel to the blowing direction A of the discharge portion 18 is reduced, and the blowing direction from the discharge portion 18 is reduced. The discharge in the direction parallel to the b is reduced, and the discharge in the direction B perpendicular to the blowing direction can be performed stably. Moreover, since the area which overlaps with the discharge part 18 of the connection board 25 in the ventilation direction (a) is small as mentioned above, the distance from the discharge part 18 to the connection board 25 can be made small.
[0009]
In addition, the air purifier according to claim 2 includes the discharge unit 18 and the counter electrode unit 22, and the charging unit 10 that charges the dust by the discharge from the discharge unit 18 toward the counter electrode unit 22, and for collecting the charged dust. In the air purifier 1 having the dust collecting unit 11 and the air blowing unit 8 that sends air to the charging unit 10 and the dust collecting unit 11, the discharge unit 18 is formed in a linear shape, and the counter electrode unit 22 is blown. The conductive plates 24 and 24 located on both sides of the discharge portion 18 in the direction B perpendicular to the direction and the connecting plate 25 having both end portions in the width direction connected to the end portions of both the conductive plates 24 are formed in a substantially U-shaped cross section. The discharge portion 18 is disposed in the middle portion between the two conductive plates 24, and a plurality of round air passage holes 26 are provided in the connecting plate 25 with the same center distance in the direction perpendicular to the width direction of the connecting plate 25. Te, disposed connecting plate 25 on the downstream side of the air flow discharge portion 8, the discharge unit 18 The distance L1 and between the connecting plate 25 with a larger than the distance L2 between the discharge portion 18 and the conductive plates 24, the air as holes 26 provided plural in a direction orthogonal to the width direction of said connecting plates 25, each The round air passage hole 26 is arranged at a position in contact with the linear discharge portion 18 when viewed from the blowing direction.
[0010]
By providing the connecting plate 25 for connecting the conductive plate 24 as described above, the rigidity of the counter electrode portion 22 can be strengthened and the installation position of both the conductive plates 24 can be maintained, and the counter electrode portion 22 has a round shape. By providing a plurality of air passage holes 26 with the same center- to- center distance, the rigidity of the counter electrode portion 22 is further enhanced while maintaining ventilation. Further, by arranging the air passage hole 26 of the connecting plate 25 so that the tangent of the air passage hole 26 overlaps with the discharge portion 18 in the blowing direction A, the direction parallel to the blowing direction A of the discharge portion 18 of the connecting plate 25 is provided. Therefore, the discharge in the direction parallel to the blowing direction a from the discharge unit 18 is reduced, and the discharge in the direction perpendicular to the blowing direction can be stably performed. Dust collection ability is obtained. Moreover, since the area of the part located in the direction parallel to the ventilation direction a of the discharge part 18 of the connection plate 25 becomes small, the distance from the discharge part 18 to the connection plate 25 can be made small, and, thereby, the counter electrode part 22 Thus, the charging unit 10 and the air cleaner 1 can be reduced in size.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0012]
As shown in FIG. 3, the air purifier 1 according to the present embodiment has a housing 2 whose front side is open, and a cover 3 is detachably attached so as to cover the front opening of the housing 2. The cover 3 is opened to communicate with the inside of the housing 2 through the opening of the housing 2, and a grill 4 is detachably provided so as to cover the opening of the cover 3. Suction ports 5 are formed in the grill 4, the gap between the grill 4 and the cover 3, and the front lower portion of the cover 3, and the inside and outside of the housing 2 communicate with each other via the suction ports 5. Yes. A discharge port 6 is provided at the rear of the top plate of the housing 2.
[0013]
The inside of the housing 2 is roughly divided into a front filter block 7 and a rear air blowing unit 8, and the filter block 7 is housed in the front part inside the housing 2 so that the front surface is covered with the cover 3. The filter block 7 is detachably attached to the inside of the opening of the housing 2, and the filter block 7 can be taken out by removing the cover 3 from the housing 2.
[0014]
A motor 12 shown in FIG. 3 is installed in the blower unit 8 and a fan storage unit 13 is provided. A sirocco fan 14 is arranged in the fan storage unit 13. When the sirocco fan 14 rotates, the air outside the housing 2 is sucked into the housing 2 from the suction ports 5 provided in the air cleaner 1, and the sucked air enters the filter block 7 from the front side. 7 is discharged from the rear surface side, and then discharged from the discharge port 6 to the upper side of the housing 2 through the sirocco fan 14.
[0015]
Hereinafter, the filter block 7 will be described in detail. The filter block 7 includes a pre-filter 9, a charging unit 10 for charging dust, and a dust collecting unit 11 for collecting charged dust in order from the front, and the pre-filter 9, the charging unit 10, and the dust collecting unit 11. Are detachably attached to the housing 2, respectively.
[0016]
The charging unit 10 has dust charging means for charging dust in the air. As shown in FIGS. 1, 2, and 4, a rectangular electrode frame 15 that opens in the front-rear direction of the housing 2 and the electrode The discharge electrode 16 is disposed on the front side of the frame 15 and the counter electrode 17 is disposed on the rear side of the electrode frame 15.
[0017]
The discharge electrode 16 includes a plurality of discharge lines 39 having conductivity and a line shape. In the present embodiment, a thin tungsten wire or a piano wire is used as the discharge line 39. As shown in FIGS. 1 and 2, the central portion of the discharge wire 39 is hooked on the upper end portion of the electrode frame 15, and both end portions are provided at the lower end portion of the electrode frame 15 with tension applied by the coil spring 19. The discharge part 18 is attached to the electrode frame 15 by being hooked on the metallic discharge part support member 20 thus formed, so that the discharge part 18 is placed on two linear parts facing the vertical direction of each U-shaped discharge line 39. In other words, the discharge portion 18 is held in a direction perpendicular to the blowing direction. In the figure, reference numeral 21 denotes a rubber or synthetic resin elastic and insulating tube that covers the connecting portion of each discharge line 39 with the electrode frame 15, and from the electrode frame 15 to the discharge line 39. It absorbs transmitted vibrations.
[0018]
The counter electrode 17 disposed behind the discharge electrode 16 is formed by pressing a punching net of a single conductive steel sheet as shown in FIG. 5 and is detachably attached to the electrode frame 15. It has been. The counter electrode 17 has a plurality of counter electrodes 22 each having a substantially U-shaped horizontal cross section arranged forward and a plurality of counter electrodes 22 arranged in the left-right direction (the width direction of the electrode frame 15). The connecting plate portion 23 is connected and integrally formed (see FIG. 4). That is, the counter electrode 17 is formed in a square wave shape in which a plurality of counter electrode portions 22 are connected by a connection plate portion 23 as shown in FIG. Further, as shown in FIG. 6, the counter electrode portion 22 is formed along the front-rear direction and the conductive plates 24 located on both sides in the left-right direction of the discharge portion 18, and the both conductive plates 24 formed along the left-right direction. 24 includes a conductive plate 24 that connects the rear end portions of 24 and an integral connecting plate 25. That is, as shown in FIG. 6, the conductive plate 24 is formed in parallel with the blowing direction A and is located on both sides of the discharge part 16 in the direction B perpendicular to the blowing direction. It is formed vertically and is located downstream of the discharge part 18. In the counter electrode part 22, the discharge part 18 is located at the center in the left-right direction between the two conductive plates 24, 24, and the discharge part 18 is located on the line connecting the ends on the suction port 5 side of the two conductive plates 24. It is arranged. More specifically, the distance L1 from the discharge part 18 to the counter electrode part 22 in the direction parallel to the blowing direction A is formed to be longer than the distance L2 from the discharge part 18 to the counter electrode part 22 in the direction B perpendicular to the blowing direction. ing. That is, the endmost distance from the discharge part 18 to the connecting plate 25 is set to be longer than the endmost distance from the discharge part 18 to the conductive plate 24. Both corner portions 37, 37 of the conductive plate 24 and the connecting plate 25 are bent so as to be convex on the opposite side to the discharge portion 18, and both corner portions 37, 37 are convex on the opposite side to the discharge portion 18. The circular arc surface 36 is formed. The counter electrode 17 formed as described above has a round air passage hole 26 (particularly circular in this embodiment) as shown in FIGS. 1, 2, and 5 on substantially the entire surface of the counter electrode 17. Thus, a plurality of air flows from the front of the charging unit 10 and is sent to the dust collecting unit 11 through the air passage hole 26. 1 and 2, only the air passage hole 26 of one counter electrode portion 22 among the plurality of counter electrode portions 22 of the counter electrode 17 is illustrated for easy understanding.
[0019]
By configuring the connecting plate 25 that connects the conductive plate 24 to the counter electrode portion 22 as described above, the rigidity of the counter electrode portion 22 can be increased. Further, since the air passage hole 26 is provided on the entire surface of the counter electrode 17, in particular, the connection plate 25 of the counter electrode portion 22, the connection plate 25 does not hinder the blowing, and the reduction of the blowing amount can be prevented. Since the hole 26 is formed in a circular shape, there is no possibility of hurting the hand with the air passage hole 26. Further, the air passage holes 26 are arranged so that the distance between the centers of the adjacent air passage holes 26 is the same. This further increases the rigidity of the counter electrode portion 22 and improves the ventilation.
[0020]
A high-voltage contact 27 (see FIG. 2) that is electrically connected to a high-voltage generating circuit (not shown) is disposed at one lower portion of the filter block 7, and a discharge-portion support member provided on the high-voltage contact 27 and the charging unit 10. 20 is brought into contact with a constant contact pressure, whereby the discharge electrode 17 and the high voltage generation circuit are electrically connected, and a high voltage of, for example, +6.5 kV is applied to the discharge electrode 17. Further, a GND contact 28 electrically connected to the ground side of the high voltage generating circuit is disposed at one side lower part of the filter block 7 opposite to the high voltage contact 27. The GND contact 28 and the counter electrode 17 described above Are connected via a GND spring (not shown). That is, the GND spring is in contact with the counter electrode 17 while maintaining a constant contact pressure, and the GND contact 28 is in contact with the GND spring at a constant contact pressure, so that the counter electrode 17 is electrically connected to the GND contact 28. It will be. When the charging unit 10 is housed as described above, the discharge electrode 16 and the high-voltage contact 27, and the counter electrode 17 and the GND contact 28 are electrically connected, whereby the discharge unit of the discharge electrode 16 to which a high voltage is applied. 18 causes discharge in a direction perpendicular to the blowing direction to the conductive plate 24 of the counter electrode portion 22 of the counter electrode 17, and the charging unit 10 positively charges the dust contained in the air sent by the blowing unit 8.
[0021]
As shown in FIG. 7, the dust collection unit 11 is disposed on the uppermost stream side of the dust collection unit 11 and also collects dust contained in the air sucked into the air cleaner 1. And a deodorizing filter unit 30 that is located on the downstream side of the dust collecting filter unit 29 and that deodorizes the air sucked into the air cleaner 1.
[0022]
The deodorizing filter unit 30 is made of a filter medium in which ultrafine fibers are blended. A fine deodorizing agent 33 finely divided is adhered to the deodorizing filter unit 30 with a binder, and the odor collected by the fine deodorizing agent 33 is obtained. Is deodorized.
[0023]
The dust collection filter unit 29 includes a honeycomb core 31 and a deodorizing agent 32 such as activated carbon filled in the honeycomb core 31. By filling the honeycomb core 31 with the deodorizing agent 32, the deodorizing agent 32 varies, moves, and biases. Is preventing.
[0024]
An insole sheet 34 through which air passes is provided between the deodorizing filter unit 30 and the dust collecting filter unit 29, and the deodorizing filter unit 30 and the dust collecting filter unit 29 are separated.
[0025]
Further, a non-woven covering material 35 is thermally welded to the downstream side of the honeycomb core 31, that is, the covering material 35 is disposed at the most downstream portion of the dust collecting portion 11, and the cover The ring material 35 prevents leakage, variation, movement, and bias of the deodorizer 32.
[0026]
With the configuration of the filter block 7, the air sent from the suction port 5 first collects large dust contained in the air by the pre-filter 7, and then charges the small dust positively by the charging unit 10. Then, the positively charged dust is attracted and collected by the Coulomb force to the dust collecting filter portion 29 of the dust collecting portion 11 that is polarized and charged. The air from which dust is collected by the dust collection filter unit 29 is deodorized by the deodorization filter unit 30 on the downstream side, and the purified and non-brominated air is discharged outside the housing 2.
[0027]
By the way, when the connecting plate 25 that connects the conductive plate 24 to the counter electrode portion 22 of the charging unit 10 is configured as described above, the discharge from the discharge unit 18 is not performed in the direction B perpendicular to the blowing direction, and the blowing direction In this case, the dust sent to the charging unit 10 is sent to the dust collecting unit 11 without being charged without crossing the discharge from the discharge unit 18, thereby collecting dust. This causes a problem of lowering.
[0028]
Therefore, in the present embodiment, as shown in FIG. 8, the air passage hole 26 is provided at a position overlapping with the discharge portion 18 in the blowing direction A of the connecting plate 25 of the counter electrode portion 22. More specifically, among the plurality of air passage holes 26 provided on the entire surface of the counter electrode 17, a plurality of air passage holes 26 provided in the vertical direction at the central portion in the width direction of the connecting plate 25 are discharged in the blowing direction of the connecting plate 25. The counter electrode portion 22 was disposed so as to overlap with the portion 18, and the counter electrode portion 22 was disposed so that the discharge portion 18 passed through the center of the air passage hole 26 when viewed from the blowing direction a.
[0029]
By configuring in this way, the area of the portion of the connecting plate 25 located in the direction parallel to the blowing direction A of the discharge portion 18 is reduced, and the discharge in the direction parallel to the blowing direction A from the discharge portion 18 is reduced. Therefore, it is possible to stably discharge in the direction B perpendicular to the blowing direction, thereby obtaining a high dust collecting ability. In addition, since the area overlapping the discharge part 18 in the blowing direction A of the connecting plate 25 is small, the distance from the discharging part 18 to the connecting plate 25 can be reduced (L2 is set to 12.2 as shown in FIG. 6 as a result of the experiment). If it is set to 5 mm, it can be reduced until L1 becomes 14.5). Thus, the counter electrode portion 22 can be reduced in size, and the charging portion 10 and the air cleaner 1 can also be reduced in size.
[0030]
Further, as shown in FIG. 5, the portion 38 (the portion located at the endmost distance from the discharge portion 18 of the electric plate 24) that overlaps the discharge portion 18 of the counter electrode portion 18 when viewed from the direction perpendicular to the air blowing direction a. The air passage hole 26 is not provided, and the air passage hole 26 is provided at a location away from the location 38 where the discharge portion 18 of the counter electrode portion 22 overlaps with the discharge portion 18 when viewed from the direction perpendicular to the blowing direction a. Thus, the discharge in the direction B perpendicular to the blowing direction can be performed more stably.
[0031]
In addition, although the example which formed the discharge part 18 in the linear form was shown above, in this embodiment, the shape of the discharge part 18 is not limited.
[0032]
Furthermore, although the example which has arrange | positioned the electrically conductive plate 24 only to the both sides in the left-right direction perpendicular | vertical to the ventilation direction a of the discharge part 18 was shown above, it is not limited to this, Both sides of the width direction perpendicular | vertical to the ventilation direction a In addition, conductive plates 24 may be provided on both sides in the vertical direction, and the conductive plate 24 may be disposed so as to surround the discharge portion. In other words, a circular conductive plate 24 may be provided as viewed from the blowing direction a. And In this case, the discharge in the direction B perpendicular to the blowing direction is further increased, and the dust collection performance can be improved.
[0033]
Further, as shown in FIGS. 5 and 9, an arcuate surface 36 that is convex on the opposite side of the discharge portion 18 is formed at the corner portion 37 of the conductive plate 24 and the connecting plate 25, and this arcuate surface 36 and the connecting plate 25 are It is also preferable that a plurality of round air passage holes 26 be provided in the inner wall. Here, the length R1 of the air passage hole 26 provided in the arc surface 36 in the direction along the arc surface is set to be shorter than the arc length R2 of the arc surface 36 as shown in FIG.
[0034]
As described above, since the plurality of round air passage holes 26 are also provided on the arc surface 36, the air permeability can be further improved. It is less likely that the exposed corner portion 37 cuts the hand.
[0035]
Next, an embodiment different from the above will be described. In addition, the same number is provided about the same structure as the said embodiment, and description is abbreviate | omitted about the overlapping description.
[0036]
In this embodiment, as shown in FIGS. 2 and 10, a plurality of air passage holes 26 provided in a direction orthogonal to the width direction of the connecting plate 25 are formed in a round shape. It is disposed at a position in contact with the discharge unit 18. By configuring in this way, the area of the connecting plate 25 located in a direction parallel to the blowing direction A of the discharge portion 18 is reduced, so that the discharge in the direction parallel to the blowing direction A from the discharge portion 18 is small. Therefore, it is possible to stably discharge in the direction B perpendicular to the blowing direction, and thereby a high dust collecting ability can be obtained. Also in this case, since the area of the portion of the connecting plate 25 located in the direction parallel to the blowing direction A of the discharge portion 18 is reduced, the distance from the discharge portion 18 to the connecting plate 25 can be reduced. Thus, it is possible to reduce the size of the counter electrode portion 22, and thus the charging portion 10 and the air cleaner 1.
[0037]
【The invention's effect】
As described above, in the invention according to claim 1 of the present invention, by providing the connecting plate for connecting the conductive plates, the rigidity of the counter electrode portion is increased , and the distance between the centers of the adjacent air passage holes is the same. As a result, the rigidity of the counter electrode portion is further increased, and there is no deformation during carrying or cleaning, and an air passage hole is provided at a position overlapping the discharge portion of the connecting plate in the blowing direction. Therefore, the connecting plate can be prevented from obstructing the air blowing, and in addition, the area of the connecting plate located in the direction parallel to the air blowing direction of the discharge portion is reduced and is stably perpendicular to the air blowing direction. Discharge can be performed in any direction, and a high dust collection capacity can be obtained. In addition, since the area overlapping with the discharge part in the blowing direction of the connecting plate is small, the distance from the discharging part to the connecting plate can be reduced, thereby reducing the size of the counter electrode part and eventually the charging part and the air cleaner. Miniaturization can also be performed.
[0038]
Further, in the invention according to claim 2, by providing a connecting plate for connecting the conductive plates, the counter electrode portion is not only stiffened, but the counter electrode portion has a round air passage hole between the centers. By providing a plurality at the same distance, the rigidity of the counter electrode portion is further increased, and this can prevent the counter electrode portion from being deformed during cleaning or carrying. Further, since the air passage hole has a round shape, there is no fear of cutting the hand with the air passage hole when carrying or cleaning, and the maintainability is improved. Furthermore, by arranging a plurality of air passage holes provided in a direction orthogonal to the width direction of the connection plate at positions where each round air passage hole is in contact with the linear discharge portion when viewed from the blowing direction, Since the area of the portion located in the direction parallel to the blowing direction of the discharge unit is reduced, the discharge in the direction parallel to the blowing direction from the discharge unit is reduced, and the discharge in the direction perpendicular to the blowing direction is stably performed. This can provide a high dust collection capacity. Moreover, since the area of the part located in a direction parallel to the blowing direction of the discharge part of the connecting plate is reduced, the distance from the discharging part to the connecting plate can be reduced, thereby reducing the size and extending the counter electrode part. Can reduce the size of the charging unit and the air purifier.
[Brief description of the drawings]
FIG. 1 is a front view showing a charging portion of an air purifier showing an example of an embodiment of the present invention. FIG. 2 is a front view explanatory view showing an air purifier in which the mounting position of the air passage hole is changed. 1 is a side sectional view of the air purifier shown in FIG. 1. FIG. 4 is a horizontal sectional view showing the same charging unit. FIG. 5 is an enlarged perspective view showing the opposite electrode. FIG. FIG. 7 is an explanatory view showing the dust collecting part. FIG. 8 is a front view explaining the arrangement of the air passage holes. FIG. 9 is a sectional view showing a corner part of the counter electrode part. FIG. 11 is a front view for explaining the arrangement of the air passage holes in FIG. 2. FIG. 11 shows an example of a conventional air cleaner, (a) is a front view of the charging unit, and (b) is a side view. 12 shows another example of a conventional air purifier, and is a perspective view of a charging unit. FIG. 13 is an explanatory view of the same. FIG. And shows still another example of Kiyoshiki, perspective view of the charging unit [15] illustration of the same [Description of symbols]
B Air blowing direction B Direction perpendicular to air blowing direction 1 Air cleaner 10 Charging part 11 Dust collecting part 18 Discharge part 22 Counter electrode part 24 Conductive plate 25 Connecting plate 26 Air passage hole 36 Arc surface 37 Corner part

Claims (2)

Consists of a discharge part and a counter electrode part, and sends air to the charging part that charges the dust by the discharge from the discharge part toward the counter electrode part, the dust collecting part for collecting the charged dust, and the charging part and the dust collecting part In an air purifier comprising a blower unit, the counter electrode is connected to a conductive plate located on both sides of the discharge unit in a direction perpendicular to the blower direction, and both ends in the width direction are connected to the end of each conductive plate. The discharge part is disposed in the middle part between the two conductive plates, and the distance L1 between the discharge part and the connecting plate is larger than the distance L2 between the discharge part and the conductive plate. And providing a plurality of round air passage holes in the connecting plate with the same center -to- center distance in the direction orthogonal to the width direction of the connecting plate, and arranging the connecting plate on the downstream side of the air flow in the discharge part, The plurality of air passage holes are arranged at positions overlapping with the discharge part in the blowing direction. Air cleaner to be. Consists of a discharge part and a counter electrode part, and sends air to the charging part that charges the dust by the discharge from the discharge part toward the counter electrode part, the dust collecting part for collecting the charged dust, and the charging part and the dust collecting part In the air cleaner provided with the air blowing part, the discharge part is formed in a linear shape, the counter electrode part is provided with conductive plates located on both sides of the discharge part in a direction perpendicular to the air blowing direction, and both end parts in the width direction. A connecting plate connected to the ends of both conductive plates is formed in a substantially U-shaped cross section, a discharge part is arranged in the middle between both conductive plates, and a round air passage hole is formed in the connecting plate. A plurality of connecting plates are provided in a direction orthogonal to the direction, the connecting plate is disposed downstream of the air flow in the discharge unit, and the distance L1 between the discharge unit and the connecting plate is greater than the distance L2 between the discharge unit and the conductive plate. as well as, a plurality of air as holes in the same distance between the centers in the direction orthogonal to the width direction of the connecting plate Air cleaner air as holes of each round is characterized by comprising disposed in a position in contact with the linear discharge portion when viewed from the air blowing direction.

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