JP2001239115A - Cleaning apparatus for filter - 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 the filter for the purpose of the cleaning of air to deteriorate dust collection efficiency. SOLUTION: A cleaning member 28 brought into contact with the surface of the filter 18 to remove an unnecessary substance is moved from one side of the filter 18 to the opposed side thereof with feed means 30, 40 to clean the surface of the filter. By this constitution, the clogging of the filter 18 is eliminated to improve the deterioration of dust collection efficiency. Further, it can be prevented that the contamination due to the relatively large dust adhering to the surface of the filter 18 becomes conspicuous to exert adverse effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter cleaning device for cleaning a filter used in a gas cleaning device.

[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 an air purifying device, a pre-filter is disposed as a purifying filter, for example, on a plane portion closest to the intake side.
A dust collection filter (a so-called HE
There is a filter using a purification filter in which a PA filter or the like is disposed and a deodorizing filter (a so-called activated carbon filter or the like) is further disposed downstream of the PA filter.

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 filter for purification, relatively large dusts such as cotton floating in the air sucked from the air inlet are removed by the pre-filter, and then the fine fibers of the dust collecting filter are removed. Air is purified by adsorbing and removing fine particles such as smoke, and then catching and removing off-flavor components such as acetaldehyde and ammonia on activated carbon of a deodorizing filter.

[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.

However, conventionally, there has been no cleaning means for removing relatively large dusts such as cotton adhering to the surface of the pre-filter.

[0008]

In the above-described air purifying apparatus, relatively large dusts such as cotton dust are generated on the surface of the pre-filter in the purifying filter as the air purifying operation is continued. The pre-filters may be clogged as they adhere and accumulate sequentially.

When the pre-filter is clogged by relatively large dust or the like as described above, the resistance when the air of the air purifying device is driven by the motor and the air is forcibly passed through the filter is increased, and the filter for purification is increased. 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 poor because the dirt on the surface of the pre-filter, which is visible from the gap of 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 yet expired is discarded, and resources are wasted.

In view of the above facts, the present invention is intended to reduce the dust collection efficiency due to clogging of the filter surface during use of the cleaning filter for a long period of time for purifying gas. To prevent the appearance of relatively large dust and dirt adhering to the surface of the filter during its use from becoming conspicuous and deteriorating the appearance.Furthermore, the filter loses its dust collecting and deodorizing effects and its service life is over. It is an object of the present invention to provide a new filter cleaning device for cleaning the surface of a filter so that the filter is not discarded because the replacement time arrives early when it is not.

[0014]

According to a first aspect of the present invention, there is provided a filter cleaning apparatus for cleaning a waste material by contacting a surface of the filter, and a cleaning member for removing the cleaning member from one side of the filter. And a feeder that moves over the opposing side.

According to a second aspect of the present invention, in the filter cleaning apparatus according to the first aspect, the feeding means includes:
A feed screw rod arranged from one side of the filter to a side opposite to the filter, and a screw driven member that is screwed into the feed screw rod and moves the cleaning member by rotation of the feed screw rod, I do.

According to a third aspect of the present invention, in the filter cleaning device according to the first or second aspect,
The cleaning member has a brush provided to sweep the surface of the filter.

According to a fourth aspect of the present invention, in the filter cleaning device according to the first or second aspect,
The cleaning member has an adhesive roller mounted so as to roll on the surface of the filter.

With the construction described above, the cleaning member moves from one side on the surface of the filter to one side opposite thereto by the feeding means, so that the cleaning member cleans the surface of the filter. 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 filter from being conspicuous and deteriorating the appearance. Also, relatively large dust and the like adhering to the surface of the pre-filter are conspicuous and this filter is It is possible to prevent the user from misunderstanding that the replacement time has come early due to the loss of the dust collecting and deodorizing effects and the end of the service life.

According to a fifth aspect of the present invention, in the filter cleaning device according to the first aspect, the cleaning member comprises:
A brush winding member for feeding the cleaning member; a traveling guide unit for guiding the cleaning member to move on the loop-shaped trajectory; and a cleaning member for moving the cleaning member on the loop-shaped trajectory. A rotating mechanism for rotating the brush member in conjunction with the movement.

With the above construction, in addition to the functions and effects of the first aspect of the present invention, the brush member which spins off unnecessary substances adhered to the surface of the filter so as to sweep it more strongly. Cleaning can be performed more reliably.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a filter cleaning apparatus according to the present invention will be described below with reference to FIGS. FIG. 1 is an overall perspective view showing a part of a filter by cutting off a part of an air cleaning device equipped with a filter cleaning device according to the first embodiment, and 10 is an air cleaning device main body.

The main body 10 of the air purifier is formed in a rectangular parallelepiped shape with rounded corners, and a front grille 12 serving as an air inlet is mounted on a wide flat surface on the front surface.

An operation panel 14 is disposed near the front grill 12 on the upper flat surface of the air purifying apparatus main body 10, and the exhaust port 1 is located at a position away from the front grill 12.
6 is arranged.

Inside the main body 10 of the air cleaning device, relatively large dust such as cotton dust, odor and other unnecessary matters are provided at a position behind the front grille 12 on the air flow path from the intake port to the exhaust port. A filter 18 for purifying a substance (hereinafter, referred to as an unnecessary substance) is disposed. Further, inside the air purification device main body 10, downstream of the purification filter 18 on the air flow path from the intake port to the exhaust port,
A fan driven by a motor (not shown) is mounted.

The main body of the air purifier 10 drives the fan with a motor to forcibly ventilate the air sucked in from the air inlet of the front grill 12 to the filter 18 for purification, so that dust, odor, etc. 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 20 is arranged in order from the upstream side in the direction in which air flows, the dust filter 22 is arranged, the deodorizing filter 24 is arranged, and the periphery thereof is surrounded and sealed by an outer frame 26, and the whole is substantially rectangular parallelepiped. So that they are integrated.

The pre-filter 20 is formed of a nonwoven fabric, a woven fabric, a porous sheet, or the like, which is a relatively open and thin air-permeable flat sheet for catching dust such as cotton dust. The dust collecting filter 22 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
Reference numeral 4 denotes 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.

A filter cleaning device is mounted between the front grill 12 and the cleaning filter 18 inside the air cleaning device body 10 shown in FIG.

As shown in FIG. 2, this filter cleaning device includes a cleaning member 28 for contacting and physically stripping unnecessary substances adhered to the surface of the pre-filter 20 in the cleaning filter 18, A feeding means for moving the filter 28 from one side of the purification filter 18 to one side opposed thereto while keeping contact with the surface of the purification filter 18;

In the first embodiment, a screw feed mechanism is provided as the feed means. Therefore, the purification filter 18
The feed screw rod 30 is disposed on one side and the guide rod 32 is disposed on the other side.

The feed screw rod 30 is rotatably supported at both ends thereof by bearing members 34, 38.
Is fixedly arranged on a fixed support member (not shown) in the air purification device main body 10. Further, an output shaft 46 of a drive motor 44 is connected to the upper end of the feed screw rod 30 in the figure, and the rotation output of the drive motor 44 causes the feed screw rod 30 to rotate.
Is configured to be driven to rotate.

The guide rod 32 is supported at both ends by fixing members 36, and each fixing member 36 is fixed to a fixing support member (not shown) in the air purifying apparatus main body 10, and is mutually connected to the feed screw rod 30. Arrange them so that they are parallel.

The cleaning member 28 is mounted so as to bridge between the feed screw rod 30 and the guide rod 32 which are arranged in parallel in the main body 10 of the air cleaning apparatus. As shown in FIGS. 2 and 3, a brush 38 is implanted in the cleaning member 28 so as to extend along one longitudinal side of the rectangular column-shaped main body along the longitudinal direction. 40, and a sliding guide member 42 at the other end.

The screw driven member 40 is arranged in a state where the feed screw bar 30 is screwed into a screw hole formed in the screw driven member 40. Further, the slide guide member 42 is arranged so that the guide rod 32 is inserted into a slide hole formed in the slide guide member 42 and is slid and guided.

As described above, the cleaning member 28 mounted between the feed screw rod 30 and the guide rod 32 is
When the screw 4 is rotated to perform the screw feed operation, the feed screw rod 30 and the guide rod 32 are moved in the axial direction.

At the time of the screw feed operation of the cleaning member 28,
As shown in FIG. 3, a cleaning operation is performed in which the brush 38 of the cleaning member 28 is rubbed against the surface of the cleaning filter 18 so that unnecessary substances attached to the surface of the filter are brought into contact with and physically stripped off. The cleaning operation is performed both in the operation of moving the cleaning member 28 from the bottom to the top in FIG. 2 and the operation of moving the cleaning member 28 from the top to the bottom in FIG.

Further, in the first embodiment, as shown in FIG. 4, the cleaning member 28 may be constituted by using an adhesive roller 48 having an adhesive substance disposed on the circumferential surface instead of the brush 38. In this case, the shaft portions projecting from both ends of the columnar adhesive roller 48 are rotatably supported by the screw driven member 40 and the sliding guide member 42.

The cleaning member 28 using the adhesive roller 48 constructed as described above drives the drive motor 44 to rotate while the outer peripheral surface of the adhesive roller 48 is in contact with the surface of the cleaning filter 18. Feed screw rod 30 and guide rod 32
When screwing the cleaning member 28 in the axial direction with
The adhesive roller 48 rolls on the surface of the filter 18 to remove unnecessary substances adhering to the surface of the filter 18 with adhesive force.
A cleaning operation of sticking to the outer peripheral surface of 8 and physically stripping it off is performed.

Next, a second embodiment of the filter cleaning apparatus of the present invention will be described with reference to FIGS.

The filter cleaning device according to the second embodiment is similar to the filter cleaning device according to the above-described first embodiment, and is similar to the filter cleaning device according to the first embodiment. It can be used by being mounted between the filter 20.

As shown in FIG. 6, this filter cleaning device has a brush as a cleaning member 28 that comes in contact with and physically strips unnecessary substances attached to the surface of the cleaning filter 18 in the radial direction. Then, a brush member 50 having a cylindrical outer shape is used.

Rotation shafts 52 and 54 are respectively extended from both ends of the brush member 50, and the rotation of the brush member 50 on one of the rotation shafts 52 (on the right side in FIG. 6) is performed. Attach the mechanism. As this rotation mechanism, a timing belt 54 is stretched over the rotation shaft 52 along the moving direction of the brush member 50, and a driven pinion 56 meshing with the timing belt 54 is fixed to a part of the rotation shaft 52.

6 and 7 as a part of the rotating mechanism.
As shown in FIG. 7, an intermediate portion of a support lever 58 is pivotally mounted on the rotating shaft 52 in order to maintain the meshing state between the timing belt 54 and the driven pinion 56. This support lever 58
A tension roller 60 that rolls on a flat surface of the timing belt 54 where no teeth are formed is axially mounted on one end of the belt. A guide pinion 62 that meshes with the teeth of the timing belt 54 is mounted on the other end of the support lever 58.

In the rotating mechanism configured as described above, when the brush member 50 is moved in the length direction of the fixed timig belt 54, the timig belt guided to a predetermined engagement fitting position by the guide pinion 62. 5
The teeth of the driven pinion 56 are properly meshed with the teeth of No. 4.

At this time, the tension roller 60 pushes the back side of the timing belt 54 to maintain the meshing state between the timing belt 54 and the driven pinion 56. Therefore, when the cleaning member 28 is moved in the direction of arrow A in FIG. 6, the brush member 50 is rotated in the direction of arrow B by the driven pinion 56 meshing with the timing belt 54.

Further, this cleaning device has a wire winding mechanism as a feeding means for moving the cleaning member 28. The wire wrapping mechanism includes a cleaning member 2
8 in the direction of moving the pulley 64
Place. A wire 68 is wound around these pulleys 64 and 66, and a tension coil spring 70 is provided between both ends of the wire 68 to apply a required tension.

Further, an output shaft 74 of a drive motor 72 is connected to one pulley 64, and by driving the drive motor 72 to rotate, the pulley 64 is turned to move the wire 68 in the direction of arrow A or in the direction opposite thereto. Movement operation is enabled.

The predetermined portion of the wire 68 is connected to the cleaning member 2.
The cleaning member 28 is moved together with the wire 68 by being fixed to a mounting member 76 which is pivotally mounted on the rotation shaft 52 of FIG.

As shown in FIGS. 8 and 9, the cleaning device has a travel guide member 78 as travel guide means for guiding the movement of the cleaning member 28. The running guide members 78 are arranged symmetrically at both ends in the longitudinal direction of the cleaning member 28.

Each traveling guide member 78 is formed with a guide groove 80 for setting an oval loop-shaped trajectory. The rotating shafts 52 and 54 extending from both ends of the cleaning member 28 are slidably guided in the respective guide grooves 80 so as to be movably inserted in the guide grooves 80.
(In FIGS. 8 and 9, the rotation mechanism is not shown for convenience.) In each of the guide grooves 80, detent members 82 are mounted at predetermined positions at the upper end and the lower end thereof, respectively. The rotation shafts 52 and 54 are configured so as to be able to rotate only in the direction of arrow C in the drawing.

In the cleaning device of the second embodiment configured as described above, one linear portion in the longitudinal direction of the traveling guide member 78 is arranged in parallel at a predetermined distance from the plane of the purification filter 18. When the rotating shafts 52 and 54 of the cleaning member 28 pass through one of the linear portions, the brush member 50 sweeps the surface of the cleaning filter 18 so that the waste material adhered to the surface of the cleaning filter 18 is removed. An operation of physically peeling off by contact with a substance is performed.

Next, the operation and operation of the filter cleaning device according to the second embodiment configured as described above will be described.

When cleaning the surface of the cleaning filter 18 with this cleaning device, the drive motor 72 is driven and controlled by a control device (not shown) or the like, and the pulley 64 connected to the output shaft 74 of the drive motor 72 is rotated. The cleaning member 28 is pulled by the moving wire 68 in the direction of arrow A in FIG.

Then, the driven pinion 56 rolls on the timig belt 54 while meshing with the timig belt 54 with the movement of the cleaning member 28, so that the brush member 50 is moved.
Is rotated in the direction of arrow B.

At this time, the brush member 50 rotates in the direction of arrow B to sweep the surface of the filter 18 for purification in the direction of arrow A. That is, the brush member 50 is
When descending downward, by sweeping the surface of the purification filter 18 downward, unnecessary substances attached to the surface of the purification filter 18 are more strongly contacted and physically peeled off. , Can be better cleaned.

When the cleaning filter 18 is cleaned from the top to the bottom in this way, the cleaning member 28 goes around the curved lower end of the traveling guide member 78, and the rotating shafts 52, 54
Pushes open the detent member 82 on the traveling guide member 78 and passes. The rotation shafts 52 and 54 are temporarily stopped by the detent member 82.
, The detent member 82 returns to the closed position by the biasing force of the spring and closes the retreat, so that the cleaning member 28 cannot return.

Accordingly, the drive device 72 is controlled by a control device or the like to rotate the drive motor 72 in a direction opposite to the above direction, and the pulley 64 connected to the output shaft 74 of the drive motor 72 is rotated, and the cleaning member 28 is Is pulled in the direction of arrow D in FIG. In this way, the cleaning member 28 circulates on the travel guide member 78 in the direction of arrow C.

As shown in FIG. 9, when the cleaning member 28 moves upward on the travel guide member 78 in the direction of arrow D, the cleaning member 28 separates from the surface of the cleaning filter 18 and does not come into contact with it. Since the vehicle passes through the position, the cleaning operation of the cleaning filter 18 is not performed.

With this configuration, cleaning is performed only when the cleaning member 28 moves down.
Relatively large dust such as cotton dust generated in the cleaning operation and other unnecessary substances can be collected in a trash receptacle provided below the purification filter 18 to facilitate disposal.

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.

Further, the configuration of the filter cleaning device in each of the above-described embodiments can be used for a pre-filter used in an air conditioner or other air conditioner having a function as a gas cleaning device. Further, it is needless to say that this can be used for a cleaning device for cleaning a filter for purifying a gas other than air, for example, a gas such as an inert gas, a carbon dioxide gas, and a water vapor.

[0062]

According to the gas purifying apparatus of the present invention, it is possible to prevent the filter surface from being clogged while the purifying filter is used for a long period of time, thereby preventing the dust collecting efficiency from deteriorating. It is possible to prevent relatively large dust and the like adhering to the surface of the filter during its use from becoming conspicuous and deteriorating the appearance.In addition, the filter loses its dust collection and deodorizing effects and its service life has not expired. 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 perspective view of a filter cleaning device according to a first embodiment of the present invention, in which a part of an air cleaning device is cut away.

FIG. 2 is a schematic top view showing a main part of an air cleaning device according to the filter cleaning device in the first embodiment of the present invention.

FIG. 3 is an enlarged sectional view of a main part of the air cleaning device according to the first embodiment of the present invention, in which a cleaning member having a brush of the air cleaning device is cut away.

FIG. 4 is an enlarged cross-sectional view of a main part of a part of a cleaning member having an adhesive roller of the air cleaning device according to the filter cleaning device in the first embodiment of the present invention.

FIG. 5 is an enlarged perspective view of a main part of a filter for cleaning used in an air cleaning device according to the filter cleaning device in the first embodiment of the present invention, which is cut away.

FIG. 6 is a schematic perspective view of a main part showing a filter cleaning device according to a second embodiment of the present invention.

FIG. 7 is an enlarged side view of a main part of a filter cleaning device according to a second embodiment of the present invention, in which a part of a rotary mechanism of a cleaning member is taken out and shown.

FIG. 8 is a schematic perspective view of a main part showing a cleaning operation state in a filter cleaning device according to a second embodiment of the present invention.

FIG. 9 is a schematic perspective view of a main part showing a return operation state after a cleaning operation in a filter cleaning device according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air purification apparatus main body 18 Purification filter 20 Pre-filter 22 Dust collection filter 24 Deodorizing filter 28 Cleaning member 30 Feed screw rod 32 Guide rod 38 Brush 40 Screw driven member 42 Sliding guide member 48 Adhesive roller 50 Brush member 52 Rotating shaft 54 TIGIG belt 56 Follower pinion 58 Support lever 60 Tension roller 62 Guide pinion 64 Pulley 66 Pulley 68 Wire 76 Mounting member 78 Travel guide member 80 Guide groove

Claims (5)

[Claims] 1. A filter comprising: a cleaning member that contacts a surface of a filter to clean an unnecessary substance; and a feeding unit that moves the cleaning member from one side of the filter to one side opposing the filter. Cleaning equipment. 2. A feed screw bar arranged from one side of the filter to a side opposite to the filter, the feed unit being screwed into the feed screw bar, and the cleaning member being rotated by rotation of the feed screw bar. The filter cleaning device according to claim 1, further comprising: a screw driven member that moves the filter. 3. The filter cleaning device according to claim 1, wherein the cleaning member has a brush provided to sweep the surface of the filter. 4. The filter cleaning apparatus according to claim 1, wherein the cleaning member has an adhesive roller mounted so as to roll on the surface of the filter. 5. The cleaning member includes a brush member, wherein the feeding means includes a wire wrapping mechanism for pulling the cleaning member, and a running guide for guiding the cleaning member to move on a loop-shaped orbit. 2. The filter cleaning device according to claim 1, further comprising: a guide unit; and a rotating mechanism that rotates the brush member in conjunction with movement of the cleaning member on a loop-shaped trajectory. 3. .