JP2007152242A - Apparatus for cleaning air filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for cleaning an air filter capable of easily cleaning the air filter. <P>SOLUTION: The apparatus for cleaning the air filter is provided with a disk-like air filter 5, a blower (not shown) sucking air through the air filter 5, a driving unit 14 driving to rotate the air filter 5, a suction nozzle 12 one end of which has a suction inlet 12a for sucking the dust attached to the air filter 5 and the other end of which communicates with a dust collecting unit 13 having the function of sucking and collecting dust, and a driving means 17 for driving the suction nozzle 12 so that the suction inlet 12a can move between the center part and the peripheral part of the air filter 5. The rotational rate of the air filter 5 is variable so that an appropriate suction time can be set depending on a suction power of the suction nozzle 12 connected to the dust collecting unit 13 by decreasing a rotational rate of the filter 5 when a dust amount is large and increasing a rotational rate of the filter 5 when it is small. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air filter cleaning device that cleans an air filter used in an air conditioner, an air cleaner, or the like.

  Devices such as air conditioners and air purifiers are provided with an air filter to prevent dust contained in the inhaled air from entering the inside of the device. However, dust accumulates on the air filter and sucks air. As the airflow resistance increases, the performance of the device decreases and the power consumption increases. Conventionally, the air filter is detachably provided, and the air filter is removed from the device according to the frequency of use, and washed with water. Or regular maintenance of cleaning the dust adhering with a vacuum cleaner etc. was indispensable, and it was very troublesome.

Therefore, in order to solve this problem and facilitate the cleaning of the air filter, a rotating brush connected to the suction nozzle of the vacuum cleaner is provided, and the rotating brush is moved on the air filter to collect dust. There is an air filter cleaning device (for example, see Patent Document 1). In addition, there is an air filter formed in a belt shape, and dust accumulated on the air filter is scraped off with a brush while rotating the air filter (for example, see Patent Document 2).
JP-A-11-226331 JP-A-6-74521

  However, the conventional air filter cleaning device as shown in Patent Documents 1 and 2 moves a suction device provided with a brush over a wide range or rotates a belt-like filter. Is complicated, and there is a problem that the apparatus in which the air filter cleaning device is incorporated becomes large.

  The present invention solves the above-described conventional problems, and can efficiently remove and collect dust from the air filter with a simple configuration and without increasing the size of a device in which the air filter cleaning device is incorporated. It aims at providing the air filter cleaning device which can be performed.

  In order to solve the conventional problems, an air filter cleaning device of the present invention includes a disk-shaped air filter, a blower that sucks air through the air filter, a drive unit that rotationally drives the air filter, and one end. A suction nozzle for sucking dust adhering to the air filter, the other end sucking dust and communicating with a dust collecting unit having a collecting function; and Drive means for driving the suction nozzle so as to move between the center portion and the outer peripheral portion of the filter so that the rotational speed of the air filter can be changed. Depending on the amount of dust, the amount of dust adhering to the air filter also varies, so when the amount of dust is large, the rotation speed of the filter is slow, and when it is small, Possible to set an appropriate suction time in accordance with the suction force of the suction nozzle connected to dust-separating unit is possible.

The air filter cleaning device of the present invention includes a disk-shaped air filter, a blower that sucks air through the air filter, a drive unit that rotationally drives the air filter, and dust attached to the air filter at one end. A suction nozzle having a suction port for suction, the other end of which is rotatably held outside the projection surface of the air filter and is connected to a dust collection unit that sucks dust and has a collection function; The air filter is arranged from the outer periphery to the center, has a gear A on the outer peripheral side and a gear B on the central side, and has a rack on the inner surface, and is stretched between the gear A and the gear B. And a belt to which the tip of the suction nozzle is connected; and a tooth-shaped rib that is formed in a rack shape on the outer peripheral side wall of the air filter and meshes with the gear A; When the tip of the suction nozzle moves to the center or outer periphery of the air filter, the rotation direction of the air filter is changed, and the suction nozzle having the suction port is moved without the need for a driving device such as a motor. Can be performed by the gear A rotating by the rotation of the air filter, and the moving direction of the suction nozzle can be changed by changing the rotation direction of the air filter.

  The air filter cleaning device of the present invention can efficiently remove and collect dust from the air filter without increasing the size of the device in which it is incorporated.

  The first invention includes a disk-shaped air filter, a blower that sucks air through the air filter, a drive unit that rotationally drives the air filter, and a suction for sucking dust adhering to the air filter at one end. A suction nozzle having a mouth, the other end sucking dust and communicating with a dust collecting unit having a collecting function, and the suction mouth moves between a center portion and an outer peripheral portion of the air filter. The drive means for driving the suction nozzle is provided so that the rotational speed of the air filter can be changed. The amount of dust attached to the air filter is also dependent on the amount of dust at the place where the device is installed. Therefore, when the amount of dust is large, the rotational speed of the filter is slow, and when it is small, the rotational speed is increased to meet the suction force of the suction nozzle connected to the dust collection unit. And it is possible to set an appropriate suction time.

  A second invention includes a disk-shaped air filter, a blower that sucks air through the air filter, a drive unit that rotationally drives the air filter, and suction for sucking dust adhering to the air filter at one end. A suction nozzle connected to a dust collecting unit having a mouth and the other end rotatably held outside the projection surface of the air filter and sucking dust and having a collecting function; The guider is arranged from the outer periphery to the center, and is provided with a gear A on the outer periphery side and a gear B on the center side, a rack on the inner surface and stretched between the gear A and the gear B, and the suction nozzle. A tip end connected to the belt, and a tooth-shaped rib formed in a rack shape on the outer peripheral side wall of the air filter and meshing with the gear A; The rotation direction of the air filter is changed when the air filter moves to the center or outer periphery of the air filter, and the movement of the suction nozzle having the suction port without the need for a driving device such as a motor can be performed. The rotation can be performed by the gear A rotating by rotation, and the moving direction of the suction nozzle can be changed by changing the rotation direction of the air filter.

  In the third invention, in particular, the rotational speed of the air filter when the suction port of the suction nozzle of the first or second invention is close to the outer periphery of the air filter, the suction port is the center of the air filter. The relative speed of the air filter with respect to the suction port of the suction nozzle is greater than the center speed of the outer periphery of the air filter, so the suction port is centered. It is larger when it is on the outer periphery than when it is.

Therefore, by controlling the rotation speed of the air filter so that it is slower when the suction port is at the outer periphery than when the suction port is at the center of the air filter, the relative speed between the suction port and the air filter is made the same. It is possible to obtain a uniform suction ability at any position of the air filter.

  In particular, the fourth aspect of the present invention is a slit-shaped suction port A located on the tip side of the suction nozzle, and a suction port B substantially parallel to the suction port A as the suction port of any one of the first to third aspects. And a flexible pad is disposed between the suction port A and the suction port B. After the dust attached to the air filter is removed with the pad, the suction port A and the suction port B Either one can suck the dust and the remaining dust can be sucked from the other. Further, the same effect can be obtained when the air filter rotates in the reverse direction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
1 is a cross-sectional view of a ceiling-embedded air conditioner equipped with an air filter cleaning device according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of a main part of the air conditioner. FIG. 4 is a plan view of the driving means of the air conditioner, and FIG. 4 is a cross-sectional view of the main part of the driving means.

  In FIGS. 1 and 2, reference numeral 7 denotes an outer casing of the air conditioner, and a front grill 1 having a suction grill 6 and an outlet 19 is fixed to a front portion of the outer casing 7.

  Inside the outer shell 7, a heat exchanger 9 and a blower 10 that is rotationally driven by a motor 11, sucks indoor air from the suction grill 6, and blows out heat-exchanged air from the outlet 19 through the heat exchanger 9, The air guider 4 that guides the air flowing in from the suction grill 6, the disk-shaped air filter 5 that collects dust contained in the air flowing in from the suction grill 6, and the air blown out by being provided at the outlet 19. A wind direction plate 2 that changes direction, a drain pan 3 that receives the condensed water that is generated by the heat exchanger 9 during cooling operation, and a heat insulating material 8 that is attached to the inner wall of the outer shell 7 to prevent condensation are provided. Yes.

  With the above configuration, when the blower 10 is operated, the indoor air passes through the suction grill 6, the air filter 5, and the air guider 4 provided in the front grill 1, is heat-exchanged by the heat exchanger 9, and is blown out from the outlet 19. The During this time, the dust mixed in the air adheres to the air filter 5 to prevent the dust from entering and adhering into the air conditioner.

  The disc-shaped air filter 5 is on the tray 16, a gear 5 a is formed on the outer periphery of the frame 5 d of the air filter 5, and the gear 5 a is formed around a rotation shaft 15 b of a guider 15 described later formed on the tray 16. It is structured to rotate by a gear 14a of the drive unit 14 meshing with the gear.

  A hollow suction nozzle 12 is disposed at the end of the guider 15 so as to face the front side of the air filter 5, and is provided with a box-shaped slit-like suction port 12a. The other end of the suction nozzle 12 communicates with a dust collecting unit 13 that sucks dust and is rotatably fitted in a pipe-like L-shaped connector 18. The slit-like suction port 12 a is formed substantially perpendicular to the longitudinal direction of the suction nozzle 12.

17 is a driving means for driving the suction nozzle 12 in order to move the suction port 12a between the center and the outer periphery of the air filter 5, and a gear 21 provided rotatably at the tip of the suction nozzle 12, The motor 20 for rotating the gear 21 and the suction grille 6 side of the air filter 5 are disposed at a position connecting the center of the air filter 5 and the outer periphery of the air filter 5, and the suction nozzle 12 rotates around the connector 18. An arcuate guider 15 that is concentric with the circle drawn by the gear 21 and a rack 15a that is provided inside the arcuate side wall of the guider 15, has the same module as the gear 21, and shares a pitch circle. One end of the guider 15 is fixed to the tray 16 at a position corresponding to the outer periphery of the air filter 5, and the other end has a rotation shaft 15 b that holds the air filter 5 and serves as a rotation center of the air filter 5. .

  The dust collection unit 13 includes a suction fan (not shown) for sucking dust and a filter unit (not shown) for collecting the sucked dust. Dust adhering to the filter 5 is sucked by the suction port 12 a of the suction nozzle 12, passes through the connection tool 18, and reaches the dust collection unit 13.

  When an air filter cleaning operation is started by operating a switch (not shown), the air filter 5 is rotated by the drive unit 14, and dust attached to the net 5 b of the air filter 5 facing the suction port 12 a of the suction nozzle 12 is sucked. The When the air filter 5 rotates once, the suction nozzle 12 moves in the longitudinal direction of the suction port 12a with the connection tool 18 as the rotation center by rotating the gear 21 and moving on the rack 15a as the motor 20 rotates. It moves by a distance corresponding to the width and sucks dust adhering to the net 5b facing the suction port 12a. This operation is repeated every time the air filter 5 makes one revolution, and dust is sucked on the entire surface of the air filter 5 by repeating the number of times obtained by dividing the distance substantially corresponding to the radius of the air filter 5 by the longitudinal width of the suction port 12a. I can do it.

  The amount of dust adhering to the air filter 5 varies depending on the amount of dust in the place where the air conditioner is installed. Therefore, since the rotational speed of the motor 20 of the drive unit 14 that rotationally drives the air filter 5 can be adjusted, a switch (not shown) for setting the rotational speed is provided, and the air filter 5 when the amount of dust is large. If the rotation speed of the suction nozzle 12 is slow and the rotation speed is increased when the rotation speed is low, it is possible to set an appropriate suction time according to the suction force of the suction nozzle 12.

(Embodiment 2)
FIG. 5 is an enlarged plan view of a main part of an air conditioner equipped with an air filter cleaning device according to the second embodiment of the present invention, and FIG. 6 is a cross-sectional view of a guider and a suction nozzle of the air filter cleaning device. . Note that the same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and only differences are mainly described.

  In the present embodiment, as shown in FIGS. 5 and 6, a gear B24 is disposed at the tip of the guider 15 and a gear A23 is rotatably disposed at the other end, and a loop shape is formed between the two gears A, B23, 24. The belt 22 having the rack 22a is laid, the belt 22 and the tip of the suction nozzle 12 are fixed, and one gear A23 is driven to rotate, so that the belt 22 moves and the suction nozzle 12 is moved accordingly. It is a thing.

  In order to rotationally drive the gear A23, in the present embodiment, a rib 5c having a gear tooth shape having the same module as the gear A23 is disposed on the outer peripheral side wall of the air filter 5, and when the air filter 5 rotates once, the rib The rotational force is applied to the gear A23 by 5c. The number of ribs 5c gives the gear A23 a rotational speed necessary for the belt 22 to move by an amount corresponding to the width of the suction port 12a of the suction nozzle 12.

  In the present embodiment, detection means (not shown) for detecting that the suction nozzle 12 has reached the center or outer periphery of the air filter 5 is provided. When it is detected that the center portion or the outer peripheral portion has been reached, the drive unit 14 is rotated in the reverse direction, the gear A23 is also rotated in the reverse direction, and the suction nozzle 12 is also moved in the reverse direction.

Further, the relative speed of the air filter 5 with respect to the suction port 12a of the suction nozzle 12 is larger in the outer peripheral portion than in the case where the suction port 12a is at the center because the peripheral speed of the outer periphery of the air filter 5 is larger than that of the central portion. It ’s bigger when you ’re at. Therefore, the rotational speed of the air filter 5 is controlled so as to be slower when the suction port 12 a is on the outer peripheral side than when the suction port 12 a is on the center side of the air filter 5. The relative speeds of the air filters 5 can be made the same, and a uniform suction ability can be obtained at any position of the air filter 5.

(Embodiment 3)
FIG. 7 is an enlarged cross-sectional view of a main part of an air conditioner equipped with an air filter cleaning device according to a third embodiment of the present invention. In addition, about the same part as the said embodiment, the same code | symbol is attached | subjected, the description is abbreviate | omitted, and only a different point is mainly demonstrated.

  In the first embodiment, one suction port 12a is provided in the suction nozzle 12, but in this embodiment, the guider 15 is located at a position near the guider 15 of the suction nozzle 12, as shown in FIG. A slit-shaped suction port A12b is provided in parallel with the suction port A12b, and another suction port B12c is provided in parallel with the suction port A12b. A flexible pad 25 is provided between the suction port A12b and the suction port B12c. Thus, after the dust attached to the air filter 5 is peeled off by the pad 25, the dust can be sucked from the suction port A12b and the remaining dust can be sucked from the other suction port B12c. Further, when the air filter 5 rotates in the reverse direction, the roles of the suction port A12b and the suction port B12c are reversed and the same effect can be obtained.

  As described above, the air filter cleaning device of the present invention can efficiently and easily remove dust adhering to the air filter with a simple configuration, and can contribute to prevention of deterioration in the performance of the device. It is useful for equipment having an air filter such as a machine.

Sectional drawing of the air conditioner carrying the air filter cleaning apparatus in Embodiment 1 of this invention. The exploded perspective view of the main part of the air conditioner Plan view of driving means of the air conditioner Cross section of the main part of the drive means The principal part enlarged plan view of the air conditioner which mounts the air filter cleaning apparatus in Embodiment 2 of this invention. Sectional view of the guider and suction nozzle of the air filter cleaning device The principal part expanded sectional view of the air conditioner carrying the air filter cleaning apparatus in Embodiment 3 of this invention.

Explanation of symbols

5 Air Filter 5a Gear 5c Rib 10 Blower 11 Motor 12 Suction Nozzle 12a Suction Port 12b Suction Port A
12c Suction port B
13 Dust Collection Unit 14 Drive Unit 15 Guider 15a Rack 15c Rib 17 Drive Means 22 Belt 25 Pad

Claims (4)

A disk-shaped air filter, a blower that sucks air through the air filter, a drive unit that rotationally drives the air filter, and a suction port for sucking dust adhering to the air filter at one end; The suction nozzle is connected to a dust collection unit having an end that sucks dust and has a collection function, and the suction nozzle is moved so that the suction port moves between a center portion and an outer peripheral portion of the air filter. An air filter cleaning device provided with driving means for driving, wherein the rotational speed of the air filter can be changed. A disk-shaped air filter, a blower that sucks air through the air filter, a drive unit that rotationally drives the air filter, and a suction port for sucking dust adhering to the air filter at one end; A suction nozzle that is rotatably held outside the projection surface of the air filter and that sucks dust and communicates with a dust collection unit having a collection function, and from the outer periphery to the center of the air filter A belt having a gear A on the outer peripheral side and a gear B on the central side, a rack on the inner surface and stretched between the gear A and the gear B and connected to the tip of the suction nozzle And a tooth-shaped rib that is formed in a rack shape on the outer peripheral side wall of the air filter and meshes with the gear A, and the tip of the suction nozzle is the air filter. Air filter cleaning device, characterized in that was to change the rotational direction of the air filter when moved to the center or periphery of data. The rotational speed of the air filter when the suction port of the suction nozzle is close to the outer periphery of the air filter is controlled to be slower than when the suction port is close to the center of the air filter. The air filter cleaning device according to claim 1 or 2. As the suction port, a slit-like suction port A located on the tip side of the suction nozzle and a suction port B substantially parallel to the suction port A are provided, and flexibility is provided between the suction port A and the suction port B. The air filter cleaning device according to any one of claims 1 to 3, wherein a pad having the same is disposed.

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