JP3521633B2 - air purifier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purifier for cleaning indoor air.

[0002]

2. Description of the Related Art Conventionally, this type of air purifier sucks indoor air and purifies it by an electric dust collecting means.
A blower for blowing out this is required, but there are a blower for rotating the fan and a blower for inducing ion wind by corona discharge.

[0003]

By the way, the former type in which the fan is rotated can generate a large amount of air but generates a lot of noise, so that the latter is used in a place where noise is likely to be a problem, such as a bedroom. It is preferable to use the ionic wind induced type. However, in the latter case of the ion wind induced type, when dust or the like adheres to the discharge part, it changes from a silent glow corona discharge to a streamer corona discharge accompanied by sound, so that the discharge electrode needs to be washed and regenerated.
Such cleaning of the discharge electrode needs to be performed on both the discharge part and the counter electrode part.However, since the discharge part, the counter electrode part, and the electrode frame are integrated in the conventional discharge electrode, it is difficult for a brush or the like to enter the discharge part and the discharge part. It is difficult to completely clean the counter electrode portion to every corner, and there is a problem that the uncleaning is likely to be left behind and a discharge noise is generated even after the cleaning.

The present invention has been made in view of the above points, and in the ion wind induced type, the discharge electrode can be easily and completely cleaned, and noise can be prevented. And an air purifier capable of preventing the falling of the counter electrode portion by increasing the holding force of the counter electrode portion with respect to the electrode frame with the counter electrode portion closed. The purpose is to provide.

[0005]

In order to solve the above-mentioned problems, according to the present invention, the discharge electrode 15 (in the air passage extending from the suction port 11 provided in the lower part of the main body 2 to the blow-out port 12 provided in the upper part of the main body 2). 16) and the dust collecting means 6 located thereabove, the discharge electrode 15 includes the discharge part 3, the counter electrode part 4 arranged in parallel with the discharge part 3, the discharge part 3 and the counter electrode part 4. An air purifier comprising an electrode frame 30 to be fixed, wherein the counter electrode part 3 is rotatably attached to the electrode frame 30 with one end side thereof as a fulcrum, and the counter electrode part 3 is opened. It is characterized in that it is provided with a mounting means 71 that can be attached and detached from the electrode frame 30 by simply rotating the counter electrode portion 3 in the opening direction.
Since the counter electrode part 4 can be easily removed, brushes and the like can easily enter the counter electrode part 4 and the discharge part 3, and dust and the like can be easily and completely removed from every corner, thus eliminating the need for cleaning. The problem that discharge noise is generated even after cleaning is solved.

Further, in order to reduce the possibility that the counter electrode portion 4 will fall out due to the fall or fall of the air purifier 1, the holding means 72 for holding the counter electrode portion 4 in the electrode frame 30 with the counter electrode portion 4 closed. Is preferably provided. This holding means 72
Is a convex or concave fitting portion 74 provided on the counter electrode portion 4.
When, preferably it has a hook 73 for engaging detachably provided to the electrode frame 30 in the fitting portion 74.

[0007] The holding means 72 is provided at both ends of the base 76 to be attached Ri <br/> preparative the electrode frame 3 0, the counter electrode 4
It is preferable to have a pressing portion 75 for sandwiching and holding the above.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described below. FIG. 7 shows a perspective view of the entire ion purifying type air purifier 1. A suction port 11 is provided on the lower surface of the main body 2, and a blowout port 12 is provided on the upper surface of the main body 2, and the flow of ion wind described later is sucked from the lower surface and blown out from the upper surface. Main body covers 13 and 13 are attached to both front and rear surfaces of the main body 2, and the main body cover 13 can be detached from the main body 2 by pressing a cover attaching / detaching button 95 provided on a side surface of the main body 2. 8 shows a state in which the main body cover 13 is removed, and FIG. 9 shows a state in which the first and second discharge electrodes 15 and 16 are taken out.

As shown in FIG. 10, in the main body 2, a pre-filter 20, a first discharge electrode 15 having a discharge part 3 and a counter electrode part 4 is provided from a suction port 11 toward a discharge port 12. An electric dust collecting means 6 and a second discharge electrode 16 having a discharge part 3 and a counter electrode part 4 having the same structure as the first discharge electrode 3 are arranged in this order, and both sides of the electric dust collecting means 6 are arranged. A pair of deodorizing portions 7 are arranged to face each other.

First, the pre-filter 20 is for collecting a relatively large amount of dust, and as shown in FIG. 14, a frame 21 and a net 22 made of, for example, a synthetic resin, held by the frame 21. It consists of and. The prefilter 20 is detachably attached to the main body 2. Reference numeral 23 in the drawing is a handle for attaching and detaching. The first discharge electrode 15 arranged above the pre-filter 20 constitutes a dust charging means for charging dust in the air to induce ion wind and the ion wind inducing means 5, and as shown in FIG. An electrode frame 30 having a rectangular shape in a plan view, which is opened vertically,
The discharge line 31 is arranged in the lower part of the electrode frame 30, and a plurality of (three in this embodiment) counter electrodes 35 are arranged in parallel on the upper side of the electrode frame 30. .

Both ends of the discharge wire 31 are coil springs 32.
Is attached to the electrode frame 30 in a state in which tension is applied. A tube 33 for insulation protection is covered on the contact portion between the discharge wire 31 and the electrode frame 30.
The discharge wire 31 is made of, for example, a thin tungsten wire or a piano wire, and is electrically connected to the discharge wire terminal portion 34 provided on the lower end surface of the electrode frame 30.

The counter electrode portion 4 arranged above the discharge portion 3 is
As shown in FIGS. 1 and 2, a counter electrode plate 35 made of a plurality of conductive thin steel plates arranged in parallel and in parallel, and arranged at both ends in the length direction of the counter electrode plate 35 to hold each counter electrode plate 35. And a connection frame 36 covered with an insulating coating. One connecting frame 3
6, a counter electrode plate terminal portion 3 electrically connected to the counter electrode plate 35.
7 is provided, and a voltage of, for example, −6 kV is applied to the counter electrode plate 35 when it is attached to the main body 2 and the power is turned on.

Here, a guide portion 77 which constitutes a mounting means 71 is disposed on one end side in the length direction of the electrode frame 30. As shown in FIG. 4, the guide portion 77 is formed in a substantially inverted U shape by a horizontal frame portion 77a and left and right vertical frame portions 77b, and a rotating shaft 78 is formed on the outer surface of both vertical frame portions 77b. On the other hand, bearings 79 that rotatably support the respective rotation shafts 78 are provided on both inner side walls on the long side of the electrode frame 30, and the guide portion 77 has a bearing 79. It is supported rotatably about a horizontal axis with the fulcrum as a fulcrum. The horizontal frame portion 77a and both vertical frame portions 77b of the guide portion 77 each have a double wall structure, and the horizontal frame portion 77a has a counter electrode portion 4a.
Hole 80a for inserting the connecting frame 36 on one end side of the same and the insertion hole 8 for inserting one end side of the counter electrode plate 35 on the center side of the counter electrode portion 4
0b are formed respectively, and the left and right vertical frame portions 77b of the guide portion 77 are provided with the left and right counter electrode plates 35, 3 of the counter electrode portion 4.
Insertion holes 80c and 80c for inserting one end side of the electrode 5 are formed. These insertion holes 80 (80a to 80c) are opened toward the inside of the electrode frame 30, and one end side of the counter electrode portion 4 can be freely inserted and removed. Can be inserted into.

Further, a holding means 72 for holding the counter electrode portion 4 with respect to the electrode frame 30 is provided on the other end side in the length direction of the electrode frame 30. In this embodiment, as shown in FIG. 5, the holding means 72 includes convex fitting portions 74 and 74 protruding from the outer side surfaces of the counter electrode plates 35 and 35 located on both outer sides of the counter electrode portion 4, and the electrode. Insulation base 7 fixed to the frame 30
6 is formed by hooks 73, 73 protruding from both outer side surfaces, respectively, and the hook 73 is engaged with the fitting portion 74 so that the counter electrode portion 4 is held by the electrode frame 30 via the insulating base 76. It has become. The fitting portion 74 may be concave. A mounting surface 76a for mounting the connecting frame 36 on one end side of the counter electrode portion 4 is provided on the upper part of the insulating base 76,
A plurality of positioning bosses 81 are projected on the mounting surface 76 a, and the positioning boss 81 is provided on the connecting frame 36 of the counter electrode portion 4.
A plurality of positioning hole portions 82 for fitting are formed. Reference numeral 76a in FIG. 5 is a recess into which one end side of the counter electrode plate 35 on the center side is inserted, and 76b is a recess into which one end side of the counter electrode plate 35 on both sides is inserted.

The first discharge electrode 15 thus formed is
It can be attached to and detached from the main body 2 by removing the main body cover 13. And when attached to the main body 2,
Support members arranged on both sides inside the main body 2 (not shown)
The contact point springs 39a and 39b (FIG. 9) are provided on both supporting members, respectively, and one of the contact point springs 39a and 39b is provided with the discharge wire terminal portion 3
4 is in contact with the counter electrode plate terminal portion 37 is in contact with the other,
A voltage of, for example, +6.5 kV is applied to the discharge line 31 through the contact springs 39a and 39b, and a voltage of, for example, -6.5 kV is applied to the counter plate 35.

As shown in FIG. 15, the dust collecting portion 6a arranged on the downstream side of the first discharge electrode 15 is made of a conductive thin steel plate and is substantially parallel to the ion air flow direction A (FIG. 10). It is formed in a substantially flat plate shape. The dust collecting portion 6 a includes a dust collecting electrode 40 arranged in the center of the body 2 in the front-rear direction, dust collecting paper 41 arranged on both front and rear surfaces of the dust collecting electrode 40, and dust collecting paper 41.
To the dust collecting electrode 40, the dust collecting electrode 40 includes a pressing portion 43 that is vertically rotatably arranged via a hinge portion 43a at the lower end portion of the dust collecting electrode 40. Is provided with a permanent magnet 49 that magnetically attracts. The entire surface of the dust collecting electrode 40 here is coated with an epoxy resin or the like to provide an insulating coating 42. The dust collecting paper 41 is placed on the dust collecting electrode 40, and then both ends are bent downward, and then the pressing portion 4 is pressed.
By rotating 3 to press and stop both ends of the dust collecting paper 41, it is attached to the dust collecting electrode 40. Then, when the power is turned on, a voltage of, for example, -6.5 kV is applied to the dust collecting electrode 40. As the dust collecting paper 41, kitchen paper or the like used in general households can be used.

When the dust collecting paper 41 needs to be replaced, the front and rear surfaces of the main body 2 can be exposed by pressing the cover attaching / detaching button 95 on the side surface of the main body 2 to remove the main body cover 13. After removing the holding part 43 of the dust collecting part 6a, the dust collecting paper 41 is pulled out, a new dust collecting paper (for example, kitchen paper) is attached, and the holding part 43 holds down the dust collecting paper. Reinstall.

On both sides of the dust collecting portion 6a, a pair of deodorizing portions 7 are arranged in a plane substantially parallel to the flow direction A of the ion wind. As shown in FIG. 16, each deodorizing portion 7 is provided with a partition 7a at the center of a conductive deodorizing frame 9, and a deodorant 7b such as activated carbon is provided on both side surfaces of the partition 7a. A storage section for storing the deodorizing frame 9 is provided, and net-like deodorizing covers 50 for fixing the deodorant 7b to the deodorizing frame 9 are provided on both side surfaces of the deodorizing frame 9, respectively. Further, the outside of each deodorizing cover 50 is covered with an outside air blocking cover 8, and each outside air blocking cover 8 prevents deterioration of the deodorant 7b when the deodorizing portion 7 is not used. Furthermore, each deodorant section 7
17, with the outside air shutoff cover 8 side in close contact with the back surface of the main body cover 13, respectively, as shown in FIG.
The deodorizing frame 9 having conductivity is fixed to the main body cover 13 by the support portion 51 provided in 3, and is connected to the ground side of the circuit by a conductive material (for example, copper wire). Here, one of the outside air blocking covers 8 existing on both sides of the conductive deodorizing frame 9 is removed, and the pair of deodorizing portions 7 are arranged so that the removed sides face the inside (air passage) of the main body 2. By setting them on the body covers 13 and 13, respectively, only one deodorant 7b can be exposed and used on the air passage side, and the other deodorant 7b can be covered by the outside air blocking cover 8. It is possible to prevent deterioration of the odorant 7b and maintain the deodorizing ability for a long time.

The second discharge electrode 1 is provided on the downstream side of the deodorizing section 7.
6 is arranged. Similar to the first discharge electrode 15, the second discharge electrode 16 includes a discharge part 3 having a function of inducing an ionic wind, a counter electrode part 4, and an electrode frame 30 fixing these, and the corresponding parts are provided at corresponding positions. Are assigned the same reference numerals and explanations thereof are omitted. An ionization unit 60 for releasing negative ions is arranged on the downstream side of the second discharge electrode 16.
This ionization unit 60, as shown in FIGS.
It is composed of three ionization needles 61 facing upward and an ionization needle counter electrode plate 62 arranged above the three ionization needles 61 at predetermined intervals. A voltage of, for example, -6.5 kV is applied to the ionization needle 61, and the ionization needle counter electrode plate 62 is connected to the ground side of the circuit. The number of the ionization needle 61 may be one.

Next, the operation of the air purifier 1 will be described with reference to FIG. When the power switch of the air purifier 1 having the above configuration is turned on, the first discharge electrode 15 (same for the second discharge electrode 16)
The above voltage is applied to each discharge line 31, the counter electrode 35, and the dust collecting electrode 40. At this time, the air near the discharge line 31 is ionized to generate positive ions, and the positive ions move toward the counter electrode plate 35 having a negative potential. Then, during the movement, the positive ions collide with the molecules in the air, the kinetic energy of the positive ions is given to the molecules in the air, and the air moves. This is the wind called ionic wind, and the upward movement of the molecules produces ionic wind.

Due to the ion wind thus generated, the suction port 1 on the lower surface of the main body 2 in the direction of arrow A shown in FIG.
A flow of wind is generated from 1 toward the outlet 12 on the upper surface, the dirty air in the room is sucked from the lower surface of the main body, large dust is collected when passing through the prefilter 20, and then the first discharge electrode. 15, dust B in the air
Are positively charged by colliding with the positive ions. The positively charged dust B moves upward by the ionic wind and is attracted by the electrostatic force to the dust collecting electrode 40 of the dust collecting portion 6a having the negative potential, and the dust collecting electrode 40
It adheres to the dust collecting paper 41 covering. Further, the odor molecules contained in the air are deodorized and deodorized by being physically adsorbed or chemically decomposed by the deodorant 7b when passing through the deodorant section 7.

After that, in the second discharge electrode 16, the ion wind is accelerated according to the same principle as that of the first discharge electrode, and negative ions are added by the ionization needle 61 of the ionization section 60 provided in the vicinity of the outlet 12. It In the ionization section 60, the air near the tip of the ionization needle 61 is ionized to generate negative ions, which are blown out along the lines of electric force generated between the ionization needle 61 and the grounded ionization needle counter electrode plate 62. Ion wind is guided to the mouth 12, and is further discharged into the room from the blow-out louver 70.

Thus, the dirty air in the room is sucked into the main body 2 through the suction port 11 to deodorize and collect dust, and the ionization section 60 further adds negative ions which are considered to be good for the human body. Therefore, clean air can be filled in the room. Further, since the counter electrode plate, the dust collecting electrode and the deodorizing portion 7 are arranged in parallel with the flow direction A of the ionic wind, the flow of the wind is not obstructed and the reduction of the wind speed of the ionic wind is suppressed. In addition, since the dust collecting papers are arranged on the front and rear surfaces of the plate-like dust collecting electrode 40, the amount of collected dust is extremely large. Further, since the dust-collecting paper 41 is arranged on both front and rear surfaces of the dust-collecting electrode 40, the amount of the dust B collected is extremely large. In addition, indoor house dust in general households mainly drifts near the floor surface, so the suction port 11 of the air purifier 11
Is provided on the lower surface of the main body 2 to suck in the air in the vicinity of the floor surface, which is most effective for improving the suction efficiency of house dust.

When the deodorant 7b loses its effectiveness due to use and the deodorant performance deteriorates, the deodorant portion 7 is removed from the main body cover 13 to shut off the outside air covering the back surface of the deodorant cover 50. By removing the cover 8 and setting the removed side to the inside (air passage) of the main body 2, the deodorant portion 7 is turned upside down and set again on the support portion 51 of the main body cover 13, whereby the deodorant portion 7 is removed. The deodorant 7b on the back side of can be used. By thus inverting the deodorant portion 7 so that the deodorant portion 7 can be used on both sides, the life of the deodorant portion 7 can be extended, and the labor for replacement can be reduced, and at the same time, the deodorant portion for replacement can be reduced. You don't have to keep it. Further, since the deodorizing frame 9 of the deodorizing portion is formed of a conductive material, the main body 2 and the main body 2 due to the electric field generated in the first and second discharge electrodes 15 and 16, the dust collecting electrode 40 and the ionizing portion 60. It is possible to reduce the charge on the cover 13, and it is possible to prevent dust and the like from adhering to the main body 2 and the wall around the main body 2. Further, a conductive deodorant 7b such as activated carbon is used, and the conductive deodorant frame 9 is connected to the ground side (ground side) of the circuit. Therefore, the main body 2 and the main body cover 13 are connected.
It becomes possible to almost eliminate the electrification of.

Next, the case where the first discharge electrode 15 (the same applies to the second discharge electrode 16) is washed and regenerated will be described. When the first discharge electrode 15 becomes dirty (when noise starts to be generated), the first discharge electrode 15 is taken out from the main body 2, and then the counter electrode portion 4
6 is removed by removing the hook 73 that fixes the electrode to the electrode frame 30.
When the counter electrode portion 4 is pulled up by hand as shown in (a), the guide portion 7
The counter electrode part 4 can be pulled out in the direction of the arrow in FIG. Thereafter, as shown in FIG. 6C, the entire metal portion (counter electrode plate 35) of the counter electrode portion 4 is cleaned with a brush 95 and tap water. At this time, since the end surface of the counter electrode plate 35 is easily soiled, it is desirable to clean it carefully, and after cleaning, it is preferable to rub the end surface of the counter electrode plate 35 with a cotton swab or the like. Further, by removing the counter electrode portion 4 from the electrode frame 30, it becomes easy to clean the discharge wire 31. Then, the counter electrode part 4 is attached to the electrode frame 30 in the reverse order of the above. That is, one end side of the counter electrode portion 4 is inserted into the insertion hole 80 of the guide portion 77, and the counter electrode portion 4 is inserted.
When is pressed downward, the guide portion 77 is rotated and the counter electrode portion 4 can be closed. At this time, by fitting the hole 71 of the counter electrode portion 4 into the positioning boss 81 of the electrode frame 30, the counter electrode portion 4
Is positioned in the direction in which it escapes from the guide portion 77, and the hook 73 provided on the insulating base 76 of the electrode frame 30 engages with the convex fitting portion 74 of the counter electrode portion 4, thereby
Are fixed to the electrode frame 30. After that, the entire first discharge electrode 15 is thoroughly rinsed with tap water, sufficiently drained, and then set in the main body 2.

As described above, the counter electrode portion 4 is made detachable from the electrode frame 30, and the guide portion 77 having a rotating structure with one end side of the counter electrode portion 4 as a fulcrum is provided as the attachment / detachment structure, and the counter electrode 4 is opened from the electrode frame 30. Since the part 4 is detachable, the counter electrode part 4 can be easily removed from the electrode frame 30, and a brush or the like can easily enter the counter electrode part 4 or the discharge part 3 where dust easily adheres, so that the dust or the like can be easily removed. You will be able to completely remove every corner. Therefore, since there is no leftover cleaning, the problem that discharge noise is generated even after cleaning is solved, and the cleaning and regeneration of the discharge electrode 15 can be frequently performed, so that the generation of noise due to streamer corona discharge is prevented. As a result, it is possible to obtain the ion wind induced type air purifier 1 which is most suitable for use in a place where noise is likely to be a problem, such as a bedroom.

Further, one end side of the counter electrode part 4 is held by a guide part 77 having a rotating structure attached to the electrode frame 30, and the other end side of the counter electrode part 4 is held by a hook 73 in a state where the counter electrode part 4 is closed. By doing so, the holding force of the counter electrode portion 4 with respect to the electrode frame 30 can be increased, and, for example, when the air purifier 1 falls or falls, the counter electrode portion 4 can be compared with a case where both ends of the counter electrode portion 4 are held only by normal hooks. It is possible to further reduce the possibility of the part 4 falling off. Further, the hook 73 is provided on the counter electrode plate 35.
Since it is only necessary to provide a convex (or concave) fitting portion 74 at a position corresponding to, there is also an advantage that the structure of the counter electrode plate 35 can be prevented from becoming complicated.

Another embodiment of the holding means 72 is shown in FIG.
As shown in FIG. 8, a structure may be provided in which a holding portion 75 that holds the counter electrode portion 4 by sandwiching it from both sides is provided. Other configurations are the same as those in FIG. In this embodiment, the pressing portions 75 are provided on both sides of the base 76 attached to the electrode frame 30 side, and the protrusions 75 a provided on the pressing portions 75 are provided.
Is elastically contacted with the side surface of the base 76. As a result, when the counter electrode part 4 is closed, the counter electrode plates 35, 35 on both outer sides of the counter electrode part 4 are sandwiched and held at a predetermined pressure between the pressing part 75 and the side surface of the base 76. In this case, since it is not necessary to project the convex (or concave) fitting portion 74 on the counter electrode plate 35 of the counter electrode portion 4 as in the above embodiment, there is an advantage that the structure of the counter electrode portion 4 can be simplified. .

[0029]

As described above, according to the first aspect of the present invention, the discharge electrode is provided in the air passage extending from the suction port provided at the lower part of the main body to the outlet port provided at the upper part of the main body.
A dust collecting electrode located above the discharge electrode is arranged, and the discharge electrode is an air purifier comprising a discharge part, a counter electrode part arranged in parallel with the discharge part, and an electrode frame fixing the discharge part and the counter electrode part. Therefore, since the counter electrode part is rotatably attached to the electrode frame with one end side thereof as a fulcrum, and the counter electrode part is provided with an attaching means that allows the counter electrode part to be detached from the electrode frame,
The counter electrode part can be easily removed from the electrode frame simply by rotating the counter electrode part in the opening direction. Therefore, it becomes easy for brushes to enter the counter electrode part and the discharge part, and dust and the like can be easily and completely covered. Since it can be removed, there is no left over cleaning, and the problem that discharge noise is generated even after cleaning is solved, and as a result, cleaning and regeneration of the discharge electrode can be performed frequently,
By preventing the generation of noise due to streamer corona discharge, it is possible to obtain an air purifier that is most suitable for use in a place where noise is likely to be a problem, such as a bedroom.

Further, the invention according to claim 2 is provided with a holding means for holding the counter electrode part on the electrode frame in a state where the counter electrode part according to claim 1 is closed. Therefore, in addition to the effect described in claim 1,
Since the counter electrode part is attached to the electrode frame by both attachment by the attachment means and holding by the holding means, the holding force of the counter electrode part with respect to the electrode frame can be enhanced, and the counter electrode part can be dropped or fallen due to falling of the air cleaner. The possibility of dropping out can be reduced. Further, since the holding means has a fitting portion of the convex or concave provided on the counter electrode portion, and a hook that engages removably provided on the electrode frame in the fitting portion, the attachment when the counter electrode unit is closed Since the counter electrode portion is fixed to the electrode frame by both the means and the holding means, the holding force of the counter electrode portion with respect to the electrode frame can be easily increased.

[0031]

According to a third aspect of the present invention, there is provided a holding means for holding the counter electrode portion in the electrode frame in the closed state of the counter electrode portion according to the first aspect, and the holding means is a base mounted on the electrode frame . provided at both ends, since with a retainer portion for holding sandwich the counter electrode portion from both sides, when the counter electrode unit is closed will be the counter electrode portions in both the mounting means and the holding portion is fixed to the electrode frame, the electrode The holding force of the counter electrode portion with respect to the frame can be easily increased, and since the counter electrode portion is only sandwiched by the holding portions from both sides thereof, the structure of the counter electrode portion itself can be simplified.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2A is a perspective view showing an open state of a counter electrode portion of the above,
(B) is an exploded perspective view showing a state in which the counter electrode portion is removed.

FIG. 3 (a) is a side view of the discharge electrode of the above, and FIG. 3 (b) is a plan view.

FIG. 4 is a cross-sectional view for explaining a mounting state of the guide portion of the above.

FIG. 5A is a schematic cross-sectional view illustrating a closed state of the counter electrode portion of the same, and FIG. 5B is a schematic cross-sectional view illustrating an opened state of the counter electrode portion.

6 (a) and 6 (b) are operation explanatory diagrams when the counter electrode portion is taken out, and FIG. 6 (c) is an operation explanatory diagram of cleaning the counter electrode portion with a brush.

FIG. 7 is a perspective view of the above air purifier.

FIG. 8 is a perspective view showing a state where the main body cover of the above is removed.

FIG. 9 is a perspective view showing a state in which the first discharge electrode and the second discharge electrode of the same are removed.

FIG. 10 is a schematic cross-sectional view of the above air purifier.

FIG. 11 is a front sectional view of the above main body.

FIG. 12 is a side sectional view of the same main body.

FIG. 13 is a plan view illustrating the discharge electrode of the above.

FIG. 14 (a) is a schematic front view of the same prefilter, and FIG. 14 (b) is a side view.

FIG. 15 is a perspective view of the above dust collecting unit.

FIG. 16 is an exploded perspective view of the above deodorant portion with a part thereof cut away.

FIG. 17 is a perspective view for explaining a mounting state of the deodorant section of the above.

18A and 18B show another embodiment, FIG. 18A is a schematic cross-sectional view illustrating a state in which a counter electrode portion is opened, and FIG. 18B is a schematic cross-sectional view illustrating a state in which the counter electrode portion is closed.

[Explanation of symbols]

1 air purifier 2 body 3 Discharge part 4 counter electrode 6 Dust collection means 11 Suction mouth 12 outlet 15, 16 discharge electrodes 30 electrode frame 71 Mounting means 72 holding means 73 hooks 74 Fitting part 75 Presser

─────────────────────────────────────────────────── ─── Continuation of front page (72) Kozo Hayashi Kozo Hayashi 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References JP-A-8-84939 (JP, A) JP-A-55-22390 ( JP, A) JP 5-23615 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B03C 3/00-3/88

Claims (3)

(57) [Claims] 1. A discharge electrode and a dust collecting means located above the discharge electrode are arranged in an air passage extending from a suction port provided in the lower part of the main body to an outlet port provided in the upper part of the main body, and the discharge electrode is a discharge part. An air purifier comprising a counter electrode portion arranged in parallel with the discharge portion and an electrode frame fixing the discharge portion and the counter electrode portion, wherein the counter electrode portion is rotatably attached to the electrode frame with one end side thereof as a fulcrum. At the same time, the air purifier is provided with a mounting means that allows the counter electrode portion to be attached to and detached from the electrode frame with the counter electrode portion opened. 2. A holding means for holding the counter electrode portion in the electrode frame with the counter electrode portion closed, the holding means being provided in the electrode frame and a convex or concave fitting portion provided in the counter electrode portion. air purifier according to claim 1, characterized in that it comprises a hook which engages detachably in the fitting portion Te. 3. A holding means for holding the counter electrode portion in the electrode frame in a state where the counter electrode portion is closed, the holding means being provided at both end portions of a base attached to the electrode frame. the air purifier according to claim 1, characterized in that it has a holding portion for holding sandwich the counter electrode portion from both sides.