JP2001239116A - Air cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent such a phenomenon that clogging is generated on the surface of a filter during the use of an air cleaning apparatus to deteriorate dust collection efficiency. SOLUTION: When an unnecessary substance in air is collected with a cleaning filter 14 by passing air through the cleaning filter 14 in an air cleaning apparatus, the surface of the filter 14 is cleaned with a cleaning means 32 so as to prevent the generation of the clogging on the surface of the filter 14 caused by dust like fluffy dust. By this constitution, the clogging of the filter 18 is eliminated to improve the deterioration of dust collection efficiency. Further, it can be prevented from adverse effect so that the contamination due to the relatively large dust adhering to the surface of the filter 14 becomes conspicuous.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas purifying apparatus for purifying a gas by passing the gas through a purifying filter.

[0002]

2. Description of the Related Art Generally, an air purifying apparatus using a purifying filter such as a dust collecting filter or a deodorizing filter for purifying air in a room such as a living room, a reception room, or a conference room or a gas in a container filled with gas. Etc. are used.

In a conventional air purifying apparatus, a pre-filter is disposed as a purifying filter, for example, at a plane portion closest to the intake side, and a dust collecting filter (a so-called HEPA filter or the like) is disposed downstream of the air inflow direction. Further, there is a filter using a purification filter in which a deodorizing filter (a so-called activated carbon filter or the like) is arranged downstream of the air inflow direction.

In such an air purifying apparatus, a purifying filter is disposed behind an intake port provided in a front panel of the cabinet (inside the cabinet), and a fan disposed behind the filter is driven by a motor. Accordingly, the operation of passing air sucked from the air inlet through a filter, removing dust and odor, and exhausting purified air to the outside is continuously executed, thereby purifying indoor air.

At this time, in the purifying filter, relatively large dust such as cotton floating in the air is first removed from the air sucked from the air inlet by the pre-filter.
Next, fine particles such as smoke are adsorbed and removed by the fine fibers of the dust collecting filter, and then the activated carbon of the deodorizing filter catches and removes off-flavor components such as acetaldehyde and ammonia to purify the air.

[0006] In the purification filter, by using the pre-filter, relatively large dust such as cotton floating in the air does not adhere to the fine fibers of the dust collecting filter to cause clogging. Like that.

[0007]

In the conventional air purifying apparatus as described above, while continuing the air purifying operation,
In the purification filter, relatively large dust such as cotton sequentially adheres and accumulates on the surface of the pre-filter, and the pre-filter may be clogged.

When the pre-filter is clogged by relatively large dust or the like, the resistance at the time of forcibly passing air through the filter by driving the fan of the air purifying device with the motor increases, and the filter for purification becomes large. Since the flow of the air passing through the air purifier is obstructed, the dust collecting efficiency of the air purifying device also deteriorates.

Further, if relatively large dusts such as cotton dust adhere to the surface of the pre-filter, the user may feel that the appearance of the pre-filter is not good because the dirt on the surface of the pre-filter, which is visible from a gap in the front panel, is conspicuous. There is.

Furthermore, even if clogging occurs on the surface of the pre-filter due to relatively large dust or the like, the dust collecting filter and the deodorizing filter behind the pre-filter are saturated and lose their dust collecting and deodorizing effects. Not necessarily. However, when the user saw the dirt on the surface of the pre-filter, the entire filter including the dust collecting filter and the deodorizing filter of the purifying filter lost the dust collecting and deodorizing action, and the service life was exhausted, and the replacement time came early. The purifying filter may be replaced with a new one by misunderstanding it.

In such a case, there is a problem in that the purifying filter whose service life has not expired is thrown away, and resources are wasted.

In view of the above facts, the present invention prevents the surface of the pre-filter from being clogged while the gas purifying device is used for a long time, thereby preventing the dust collection efficiency from being deteriorated. To prevent contaminants such as relatively large dust adhering to the surface of the pre-filter from becoming noticeable and deteriorating the appearance. It is an object of the present invention to newly provide a gas cleaning device for preventing the device from being thrown away before.

[0013]

According to a first aspect of the present invention, there is provided a gas purifying apparatus, comprising: passing a gas through a purifying filter to collect unnecessary substances in the gas with the purifying filter. The apparatus is characterized by having a relatively coarse pre-filter disposed on the surface of the purification filter and cleaning means for cleaning the surface of the pre-filter.

According to the above-described structure, when a relatively large dust such as cotton is adhered to the surface of the pre-filter by using the gas cleaning device and clogging occurs, the dust collection efficiency is deteriorated. In addition, by cleaning the surface of the pre-filter with the cleaning means, the clogging of the pre-filter can be eliminated and the deterioration of dust collection efficiency can be improved. Furthermore, it is possible to prevent relatively large dust and the like adhering to the surface of the pre-filter from being conspicuous and degrading the appearance. It is possible to prevent the dust collecting filter and the deodorizing filter following the filter from losing their dust collecting and deodorizing effects and being replaced unnecessarily before the end of their service life.

According to a second aspect of the present invention, there is provided a gas purifying apparatus, comprising: a filter for trapping unnecessary substances in the gas by passing the gas; and a cleaning apparatus for contacting and removing the unnecessary substances adhering to the surface of the filter. Means.

With the above construction, in addition to the function and effect of the first aspect, the cleaning means comes in contact with and removes unnecessary substances adhered to the surface of the filter. As compared with, even light dust can be more reliably cleaned.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of an air purifier relating to a gas purifier according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic longitudinal sectional view of an air cleaning device according to the first embodiment, and reference numeral 10 denotes an air cleaning device main body.

The main body 10 of the air purifying apparatus is formed in a substantially rectangular parallelepiped shape, and a front grille 12 serving as an intake port is disposed on a wide flat surface on the front surface thereof. Make a mouth.

Inside the air purifying apparatus main body 10, relatively large dust such as cotton dust, odor and other unnecessary matter are provided at a position immediately behind the front grill 12 on the air flow path from the intake port to the exhaust port. A filter 14 for purifying a substance (hereinafter, referred to as an unnecessary substance) is disposed. Further, a fan driven by a motor (not shown) is mounted inside the air purifier 10 downstream of the purification filter 14 on the air flow path from the intake port to the exhaust port.

The main body 10 of the air cleaning device drives the fan with a motor to forcibly ventilate the air taken in from the air inlet of the front grill 12 through the filter 14 for purification, thereby removing dust and odors. It is configured to perform an operation of removing the purified air and exhausting the purified air to the outside.

As shown in FIG.
Is on the flat part where the air is forcibly ventilated and purified
The pre-filter 18 is arranged in order from the upstream side in the direction of air flow, the dust filter 20 is arranged, the deodorizing filter 22 is arranged, and the periphery thereof is surrounded and sealed by the outer frame 16, and the whole is formed as a substantially rectangular solid. So that they are integrated.

The pre-filter 18 is made of a nonwoven fabric, a woven fabric, a porous sheet, or the like, which is a relatively coarse and thin air-permeable flat sheet that catches dust such as cotton dust. The dust collecting filter 20 is configured by a so-called HEPA filter or the like formed by folding a nonwoven fabric of a special band electrode fine fiber into a bellows shape in order to increase the surface area. Deodorizing filter 2
2 is a so-called activated carbon filter or the like which is processed into a layer having air permeability using activated carbon which has been subjected to a special treatment.

As shown in FIGS. 1 and 2, a shutter 2 for moving the front side of the front grille 12 to cover or open the front surface of the front grille 12 is provided on the air purifier main body 10.
4 is attached. In the shutter 24, a plurality of long plate-shaped unit members 26 are arranged with their longitudinal sides opposed to each other. Then, the entirety of the shutter 24 is configured like a shutter door by axially attaching the adjacent long sides to each other with the axially attaching pin 28.

The shutter 24 is opened by a wind-up device 30 from its base end and opened to expose the entire surface of the front grill 12, and is pulled out from the wind-up device 30 and closed to cover the entire surface of the front grill 12. Attach so that the door closing operation can be performed. It is preferable that the air cleaning device main body 10 be provided with a guide means such as a guide groove (not shown) for guiding the movement of the shutter 24.

At the leading end of the shutter 24, a cleaning means 32 is mounted for cleaning by contacting and physically stripping unnecessary substances on the surface on the suction side of the filter 14 for purification. The cleaning means 32 is provided on a surface of the purification filter 14 with a brush 36 which is continuously and continuously implanted along a longitudinal direction on a long member 34 having a length extending over the width of the purification filter 14. By making a sliding contact with the relatively coarse pre-filter 18,
It is configured to remove relatively large dust and the like such as cotton dust adhering to the surface of the pre-filter 18.

In order to support the cleaning means 32, a support arm 38 is provided at the distal end of the shutter 24 so as to project from both sides thereof toward the purification filter 14 inside the air purifier main body 10.

Between the free ends of each support arm 38, cleaning means 32 for directly contacting the pre-filter to remove unnecessary substances is formed. It is installed. The direction changing means is means for changing the direction of the long member 34 so that the brush 36 slides on the surface of the pre-filter 18 only when the shutter 24 is closed so as to cover the entire surface of the front grill 12.

The direction changing means can be constituted by various mechanisms utilizing the frictional resistance between the brush 36 and the pre-filter 18, the frictional resistance with other members related to the operation of the shutter 24, and the like.

That is, the shutter 24 is mounted on the winding device 3
When the door closing operation is performed to close the front grill 12 so as to cover the entire surface of the front grill 12, the long member 34 is held in the state shown in FIG. At the same time, shutter 2
When the door 4 is opened by the hoisting device 30 and opened to expose the entire surface of the front grill 12, the long member 34 is held in the state shown in FIG. The configuration is as follows.

In the main body 10 of the air purifier, a receiving tray 40 is provided immediately below the entire length of the lower end of the purifying filter 14.
And receives dust and the like that are stripped off by the cleaning means 32 from the pre-filter 18 of the purification filter 14. The receiving pan 40 is detachably attached to the air purifying apparatus main body 10 in order to discard dust or the like that has fallen thereon.

Next, the operation and operation of the air purifying apparatus main body 10 according to the first embodiment configured as described above will be described.

The air purifying apparatus main body 10 according to the first embodiment is stored in a housed state in which the shutter 24 shown in FIG. 1 is closed, and when used, the shutter 24 is opened to be used. In order to shift the air purifying apparatus main body 10 from the housed state to the use state, the shutter 24, which has been lowered down and closed to cover the front grill 12 of the air purifying apparatus main body 10 by the hoisting apparatus 30, is viewed by the hoisting apparatus 30. As shown in FIG. 3, the air inlet of the front grill 12 is opened by winding up in the direction of arrow B.

In the operation of winding the shutter 24 in the direction of arrow B, the cleaning means 32 supported at the tip of the shutter 24 is operated by the direction changing means to change the length of the long member 3.
4 to turn the brush 36 downward so that the cleaning filter 14
Is set so that it does not slide on the surface of.

Therefore, when the shutter 24 is rolled up and opened, the brush 36 does not sweep over the surface of the pre-filter 18 in the cleaning filter 14, so that dust and the like can be collected inside the air purifying apparatus body 10. So they won't scatter.

The main body 10 of the air cleaning device is driven by driving a fan (not shown) by a motor in a state where the shutter 24 is completely wound up and opened, and the front grill 1 is opened.
An operation of passing the air taken in from the intake port provided in 2 through a purification filter 14 to remove dust and odor and exhaust the purified air to the outside is executed.

Next, at the time when the operation of the air purifying apparatus main body 10 is completed, the air purifying apparatus main body 10 shifts from the use state to the housed state with the shutter 24 closed. For this reason, the shutter 24 is pulled out of the hoisting device 30 and its tip is lowered in the direction indicated by the arrow A in FIG. 1, and as shown in FIG.
A closing operation is performed so as to cover the entire surface of No. 2.

At this time, the cleaning means 32 supported by the tip of the shutter 24 rotates the long member 34 by the action of the direction changing means to turn the brush 36 sideways, and as shown in FIG. The brush 36 is set so as to be in average sliding contact with the surface of the pre-filter 18 over the entire longitudinal direction.

Therefore, the shutter 24 is mounted on the winding device 30
The brush 36 sweeps the entire surface of the pre-filter 18 from top to bottom in accordance with the operation of being pulled out of the pre-filter 18 from the top, and relatively large dust such as cotton dust is removed from the pre-filter 18. Peel off the entire surface and drop it on the pan 40.

As described above, only during the operation of closing the shutter 24, the brush 36 comes into contact with the cleaning filter 14 to physically strip the unnecessary substance and clean it. Therefore, the cotton dust removed from the cleaning filter 14 is removed. A relatively large amount of dust or the like can be accumulated on the receiving pan 40 in a substantially entire amount, so that relatively large dust or the like such as cotton dust can be prevented from rising and scattering inside and outside the air cleaning device body 10. At the same time, the cleaning unit comes into contact with the cleaning unit to physically remove unnecessary substances attached to the surface of the purification filter 14, so that light dust can be more reliably cleaned as compared with shaking off by vibration or the like.

When the air purifier main body 10 is next used, the surface of the pre-filter 18 is cleaned even if the shutter 24 is opened and the purifying filter 14 can be seen through the air inlet of the front grill 12. Because it is beautiful, it looks good and does not give any discomfort to the user.

Further, since relatively large dusts such as cotton are adhered to the surface of the pre-filter 18 of the cleaning filter 14, it is mistaken that the replacement time of the cleaning filter 14 comes early. So that they don't get thrown away.

When the air purifying apparatus body 10 is started to be used, the pre-filter 1 in the purifying filter 14 is used.
Since the clogging of the pre-filter 18 has been eliminated by always cleaning the air-cleaning device 8, it is possible to prevent the ventilation resistance of the pre-filter 18 from increasing. Can be.

At the same time, the main body 10 of the air cleaning device is configured to simultaneously execute the operation of closing the shutter 24 to cover the front grill 12 and the operation of cleaning the purification filter 14. The structure for performing the operation can be simplified. That is, if the user closes the shutter 24 of the air purifying apparatus main body 10 and blindfolds the front grill 12 to put it in the housed state, the user can automatically perform the cleaning operation of the purifying filter 14. It is convenient because it can perform two functions.

Next, a second embodiment of the air purifier relating to the gas purifier of the present invention will be described with reference to FIGS. The air purifying apparatus main body 10 of the second embodiment includes a cleaning unit 42 for the front grill 12.
Have together.

The cleaning means 42 is constructed in the same manner as the above-described cleaning means 32. The cleaning means 42 is continuous with a long member 44 extending over the width of the front grill 12 along the longitudinal direction. The brush 46 thus implanted is brought into sliding contact with the surface of the front grill 12 in such a manner as to sweep the surface of the front grill 12, thereby removing dust and the like adhering to the surface of the front grill 12.

That is, the cleaning means 42 is constructed by attaching both ends of the long member 44 to the intermediate portion of the support arm 38 provided on both sides of the distal end of the shutter 24 via the direction changing means.

The direction changing means changes the direction of the elongated member 44 so that the brush 46 slides on the surface of the front grill 12 only when the shutter 24 is in the door closing operation, and is similar to the cleaning means 32 described above. Configured to
Alternatively, the cleaning unit 32 and the cleaning unit 42 are configured to work together.

With this configuration, when the shutter 24 is pulled out of the wind-up device 30 and performs a door closing operation to close the front grill 12 so as to cover the entire surface thereof,
As shown in FIG. 6, the long member 34 is held in the state shown in FIG. 1 in order to bring the brush 36 into sliding contact with the front grill 12. At the same time, when performing a door opening operation in which the shutter 24 is wound up by the hoisting device 30 and opens so as to expose the entire surface of the front grill 12, the long member 34 is rotated to remove the brush 36 from the pre-filter 18. 36 is configured to be held in a downward facing state.

In the main body 10 of the air purifier, the pan 40 is disposed immediately below a range extending over the entire length including the lower ends of the filter 14 and the front grill 12 for purification. The receiving pan 40 is formed of relatively large dust such as cotton stripped off from the cleaning filter 14 by the cleaning unit 32 and relatively large dust such as cotton stripped from the front grill 12 by the cleaning unit 42. And at the same time.

Next, the operation and operation of the air cleaning apparatus according to the second embodiment having the above-described configuration will be described.

The air purifying apparatus main body 10 according to the second embodiment is stored in a housed state in which the shutter 24 shown in FIG. 5 is closed, and when used, the shutter 24 is opened and brought into a use state. To shift the air purifier main body 10 from the housed state to the use state, the shutter 24 closed by the hoisting device 30 is wound up by the hoisting device 30 to open the air inlet of the front grill 12.

In the operation of winding up the shutter 24, the cleaning means 3 provided at the tip of the shutter 24
2 and the cleaning means 42 rotate the long member 34 and the long member 44 by the action of
And the brush 46 are directed downward, respectively, to purify the filter 1.
4 or the front grill 12 is set so as not to be in sliding contact with the surface.

Therefore, when the shutter 24 is wound up and opened, the brush 3 is placed on the surface of the cleaning filter 14.
6 does not sweep, and the brush 46 does not sweep over the surface of the front grill 12, so that relatively large dusts such as cotton do not fly up and down inside and outside the air cleaning device body 10.

Next, at the time when the operation of the air purifying apparatus main body 10 is completed, the air purifying apparatus main body 10 shifts from the use state to the housed state with the shutter 24 closed. For this reason, the shutter 24 is pulled out from the hoisting device 30, and the leading end is lowered in the direction indicated by the arrow A in FIG. 5 to close the front grill 12 as shown in FIG. I do.

At this time, the cleaning means 32 and the cleaning means 42 provided at the tip of the shutter 24 rotate the long member 34 and the long member 44 by the action of the respective direction changing means, as shown in FIG. Each of the brushes 36 and 46 is turned sideways as shown in FIG.
4. The brushes 36 and the brushes 46 are set to be in average sliding contact with the surface of the pre-filter 18 over the entire longitudinal direction of the long member 44.

Therefore, the shutter 24 is mounted on the winding device 30
The brush 36 and the brush 46 sweep the entire surface of the corresponding pre-filter 18 and front grille 12 from top to bottom in accordance with the operation of pulling out the tip portion and lowering the tip portion, thereby removing dust like dust. Pre-filter 18 and front grill 12
And drop it on the pan 40.

As described above, only when the shutter 24 is closed, the cleaning filter 14 is
And the front grill 12 are cleaned, and a relatively large amount of relatively large dust such as cotton peeled off from the purification filter 14 and the front grill 12 can be accumulated on the receiving pan 40 substantially in total. It is possible to prevent relatively large dust and the like from rising and scattering inside and outside the air cleaning device main body 10.

The configuration, operation, and effects of the second embodiment other than those described above are the same as those of the above-described first embodiment, and a description thereof will be omitted.

Next, a third embodiment of the air purifier relating to the gas purifier of the present invention will be described with reference to FIGS. The air purifying apparatus main body 10 of the third embodiment is configured by mounting a cleaning means 54 for a purifying filter 14 on an operating mechanism for opening and closing a shutter.

In the main body 10 of the air cleaning device, an opening / closing shutter device 50 is arranged behind the opening 48 for intake provided in the front surface of the housing. This opening / closing shutter device 50
Has both a function of opening and closing the intake opening 48 with a shutter 52 that can expand and contract in the moving direction and a function of cleaning the purification filter 14.

The opening / closing shutter device 50 is configured so that the expandable and contractible shutter 52 and the cleaning means 54 are simultaneously operated by a belt winding mechanism.

As shown in FIGS. 10 to 13, an opening / closing shutter device 50 that can be extended and contracted in the moving direction connects a plurality of substantially long plate-shaped unit members 56 so that the side portions in the longitudinal direction are attached. Then, it is constructed like a single door.

The unit member 56 is formed as a long member having a substantially wing cross section, and connecting means are formed at both ends thereof. The connecting means has a guide groove 58 formed on each side surface of both ends of the unit member 56 and a connection sliding member 60.

The guide groove 58 is formed in a substantially arc-shaped groove. Further, the connection sliding member 60 has a small protrusion protruding obliquely from the main body of the unit member 56 and a guide pin 62 for opening and closing operation from the base end toward the outside in the longitudinal direction of the unit member 56. And a guide pin 64 for connecting operation is protruded from the distal end toward the inside in the length direction of the unit member 56.

Each unit member 56 thus configured
Corresponds to each of the guide grooves 5 of the unit members 56 which respectively attach the respective guide pins 64 for the connecting operation in the longitudinal direction.
By slidably inserting the unit 8, a plurality of unit members 56 are connected in series to form a single door.

The unit members 56 connected in series as shown in FIGS. 7, 9 and 12 are provided with a guide groove 62 for opening and closing each opening and closing guide provided in the housing of the main body 10 of the air cleaning apparatus. The air purifying apparatus main body 10 is slidably inserted into the groove 66 so as to be movable between the open position shown in FIG. 7 and the closed position shown in FIG. 9 while being guided by the open / close guide groove 66. Attach to

The opening / closing shutter device 5 configured as described above
0 is the unit member 5 as shown in FIG. 11 when it is stretched to widen the occlusion range as shown in FIG.
6, the guide pins 64 for each connecting operation are located at the end farthest from the end where the connection sliding member 60 is provided in each guide groove 58 so that the total length of the opening / closing shutter device 50 is the longest. .

When the opening / closing shutter device 50 is contracted so as to narrow the closing range as shown in FIG.
As shown in FIG. 10, the guide pin 64 for each connecting operation is located at the end of the unit member 56 where the connecting sliding member 60 is provided in each guide groove 58, so that the total length of the opening / closing shutter device 50 is minimized. And

As shown in FIGS. 7 and 9 to 11, the unit member 56, which corresponds to the front end in the moving direction of the opening / closing shutter device 50, is provided with a towing support member 68 for connecting to the belt of the belt winding mechanism. To wear.

As shown in FIGS. 7 to 9 and FIG. 14, the belt winding mechanism is configured by winding an endless belt 74 between a pair of pulleys 70 and 72. In this belt winding mechanism, round holes 76 are formed at equal intervals in the endless belt 74, and sector pins 78 project at equal center angles so that the pulleys 70 and 72 can be inserted into the round holes 76. The pulley 72 on the driven side is pulled by a spring 80 so that the endless belt 74 is slackened.

Then, the pulley 70 driven by the motor 71 and the driven pulley 72 transmit power to the endless belt 74 while inserting their respective sector pins 78 into the respective round holes 76, and a pair of pulleys 70. , 72 and endless belt 74
Move without slip between Note that the belt winding mechanism may be configured by a timing belt.

Further, to the endless belt 74, the above-mentioned towing support member 68 is fixed at a predetermined position corresponding to the intake opening 48, and is directed to a predetermined position corresponding to the back side of the intake opening 48. The cleaning means 54 is mounted via the changing means.

The cleaning means 54 hits the surface of the cleaning filter 14 with a brush 82 continuously and stably implanted in the longitudinal member 84 along the longitudinal direction over the width of the cleaning filter 14. By sliding the pre-filter 18 so as to be swept, relatively large dust such as cotton adhering to the surface of the pre-filter 18 is peeled off.

The direction changing means includes an elongated member 84 for sliding the brush 82 on the surface of the pre-filter 18 of the purification filter 14 only when the door is closed by the opening / closing shutter device 50 to close the intake opening 48. Is a means for changing the direction.

The direction changing means is constituted by various mechanisms utilizing the frictional resistance between the brush 82 and the pre-filter 18 and the frictional resistance with other members related to the required operation of the opening / closing shutter device 50. Can be.

That is, when the extensible shutter 52 performs the door closing operation of closing the intake opening 48 by the belt wrapping mechanism, the long member 84 is slid in contact with the brush 82 to the pre-filter 18 as shown in FIGS. It is configured to hold the state shown in FIG. At the same time, when the retractable shutter 52 performs the door opening operation of opening the intake opening 48, the long member 84 is rotated to prevent the brush 82 from contacting the pre-filter 18, and the brush 82 is moved downward as shown in FIG. It is configured to be held in a state of facing to.

Further, in the air purifying apparatus main body 10, a pan 40 is provided immediately below the entire length of the lower end side of the purifying filter 14.
And receives relatively large dust and the like, such as cotton, stripped off by the cleaning means 54 from the pre-filter 18 of the filter 14 for purification.

Next, the operation and operation of the air purifying apparatus according to the third embodiment configured as described above will be described.

The air purifying apparatus main body 10 according to the third embodiment stores the retractable shutter 52 shown in FIG. 9 in a closed storage state.
Open 2 to use.

To shift the air purifier body 10 from the housed state to the used state, the motor 71 rotates the pulley 70 by a predetermined number of rotations to move the endless belt 74 by a predetermined distance. Telescopic shutter 52
Is pulled down from the state shown in FIG. 8 to the state shown in FIG. 7, thereby opening the intake opening 48.

When opening the extendable shutter 52, the cleaning means 54 attached to the endless belt 74
Is set in a state in which the long member 84 is rotated by the action of the direction changing means so that the brush 82 faces downward and does not slide on the surface of the cleaning filter 14.

Therefore, even if the endless belt 74 moves a predetermined distance with the operation of opening the extendable shutter 52, the cleaning means 54 attached to the endless belt 74
Since the brush 82 does not sweep over the surface of the cleaning filter 14, relatively large dusts such as cotton do not soar up and down inside and outside the air cleaning device body 10.

Next, the air purifying apparatus main body 10 shifts from the use state to the housed state with the retractable shutter 52 closed when the operation is completed. For this reason, the pulley 70 is rotated by a predetermined number of rotations by the motor 71 in the opposite direction to the above-described opening operation to move the endless belt 74 by a predetermined distance. By pulling up from the state shown to the state shown in FIG. 9, the opening 48 for intake is closed.

In the operation of closing the extendable shutter 52, the cleaning means 5 attached to the endless belt 74
Reference numeral 4 denotes a state in which the long member 84 is rotated by the action of the direction changing means so as to be turned sideways so that the brush 82 is in sliding contact with the surface of the cleaning filter 14.

Thus, the brush 82 sweeps the entire surface of the pre-filter 18 from top to bottom in accordance with the operation of moving the endless belt 74 by a predetermined distance in accordance with the operation of closing the extendable shutter 52. Relatively large dust such as cotton dust is peeled off from the entire surfaces of the pre-filter 18 and the front grill 12 and dropped onto the tray 40.

As described above, only when the shutter 24 is closed, the cleaning filter 14 is
And the front grill 12, it is possible to accumulate substantially all the relatively large dust and the like, such as the cotton, peeled off from the filter 14 for purification on the receiving pan 40. Large dust and the like can be prevented from rising and scattering inside and outside the air cleaning device main body 10.

The configuration, operation, and effects of the third embodiment other than those described above are the same as those of the above-described first embodiment, and a description thereof will be omitted.

In the first to third embodiments described above, an adhesive roller may be used as the cleaning means 32, 42, 54 instead of the brushes 36, 46, 82. In this case, the adhesive roller is rolled in contact with the surface of the cleaning filter 14 in conjunction with the opening and closing operation of the shutter, and relatively large dust such as cotton dust is removed from the entire surface of the pre-filter 18 or the front grill 12. And peel it off.

When this adhesive roller is used, dust and the like are adhered to the adhesive roller and held, so that the tray 40 can be omitted. Further, since the dust and the like are adhered to the adhesive roller and held, the dust and the like are removed. Since it does not fly up and down inside and outside the air purifying apparatus main body 10, the cleaning operation can be performed in both directions of opening and closing the shutter.

Further, in this embodiment, the shutter is opened and closed by vertically raising and lowering the shutter. However, the shutter is opened horizontally or double-opened, and the cleaning operation is performed in conjunction with the opening and closing operation. May be configured.

The configuration of the air purifying device in each of the above-described embodiments can be used for a gas purifying device for gases other than air, for example, gases such as inert gas, carbon dioxide gas and water vapor. It is.

[0092]

According to the gas purifier of the present invention, it is possible to prevent the surface of the pre-filter from being clogged during use for a long period of time, thereby preventing the dust collection efficiency from being deteriorated. Prevents the appearance of relatively large dust and dirt attached to the surface of the pre-filter from becoming noticeable and deteriorating the appearance.In addition, before the service life of the dust collection filter and the deodorizing filter expires,
The effect of preventing the user from being thrown away by mistakenly thinking that the replacement time has come early can be expected.

[Brief description of the drawings]

FIG. 1 is an overall schematic sectional view showing a state in which a shutter of an air cleaning device according to a first embodiment of the gas cleaning device of the present invention is closed.

FIG. 2 is a schematic sectional view taken along line II-II in FIG.

FIG. 3 is an overall schematic cross-sectional view showing a state in which a shutter of the air cleaning device according to the first embodiment of the gas cleaning device of the present invention is half-opened.

FIG. 4 is an enlarged perspective view showing a partial section of a purifying filter used in the gas purifying apparatus of the present invention, and showing a main part thereof.

FIG. 5 is an overall schematic cross-sectional view showing a state in which a shutter of an air cleaning device according to a second embodiment of the gas cleaning device of the present invention is closed.

FIG. 6 is a schematic sectional view taken along line VI-VI of FIG. 5;

FIG. 7 is an overall schematic cross-sectional view showing a state in which a shutter of an air cleaning device according to a second embodiment of the gas cleaning device of the present invention is open.

FIG. 8 is an overall schematic cross-sectional view showing a state in which a shutter of a gas cleaning apparatus according to a second embodiment of the present invention is half-opened.

FIG. 9 is an overall schematic cross-sectional view showing a state in which a shutter of an air cleaning device according to a third embodiment of the gas cleaning device of the present invention is closed.

FIG. 10 is an enlarged side view of a main part of a gas cleaning device according to a third embodiment of the present invention, in which an expandable shutter of an air cleaning device according to a third embodiment is extracted and contracted;

FIG. 11 is an enlarged side view of a main part of a gas cleaning device according to a third embodiment of the present invention, in which an extendable shutter of an air cleaning device according to a third embodiment is extracted and shown.

FIG. 12 is an enlarged perspective view showing one unit member of an extendable shutter in an air cleaning device according to a third embodiment of the gas cleaning device of the present invention.

FIG. 13 shows an extendable shutter 2 of the air cleaning device according to the third embodiment of the gas cleaning device of the present invention.
It is an enlarged plan view which extracts and shows the connection state of three unit members.

FIG. 14 is an enlarged perspective view of a main part of a gas cleaning device according to a third embodiment of the present invention, in which an endless belt of a belt winding mechanism of an air cleaning device according to a third embodiment is taken out around a pulley.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air purification apparatus main body 12 Front grill 14 Purification filter 18 Pre-filter 20 Dust collection filter 22 Deodorizing filter 24 Shutter 30 Hoisting device 32 Cleaning means 34 Long member 36 Brush 38 Support arm 40 Receiving tray 42 Cleaning means 44 Long member 46 Brush 50 opening / closing shutter device 52 shutter 54 cleaning means 56 unit member 70 pulley 74 endless belt 82 brush 84 long member

Claims (2)

[Claims] 1. A gas purifying apparatus for collecting unnecessary substances in a gas by the purifying filter by passing the gas through the purifying filter, wherein a relatively large amount of gas is disposed on a surface of the purifying filter. And a cleaning means for cleaning a surface of the pre-filter. 2. A gas cleaning apparatus, comprising: a filter for collecting unnecessary substances in a gas by passing a gas; and cleaning means for removing unnecessary substances attached to the surface of the filter.