JP2008256300A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for efficiently sucking dust which does not adhere to an air filter, in a device provided with an air filter cleaning device. <P>SOLUTION: The air conditioner is provided with an air filter 2 for capturing dust contained in air flowing into the apparatus, a suction nozzle 3 for moving at an upstream side of the air filter 2 and sucking the dust and a suction exhaust device connected with the suction nozzle 3. A saucer 18 is formed below the suction nozzle 3 in a range where the suction nozzle 3 moves and dust which does not adhere to the air filter 2 and is not sucked by the suction nozzle 3 is caught by the saucer 18, a suction hole of the suction nozzle 3 is moved to a position confronting the saucer 18 and the dust accumulated on the saucer 18 is sucked. The air conditioner can prevent operation abnormality caused by dust invading in a drive device 12 provided below the suction nozzle 3 and it is possible to prevent mold from growing by preventing the dust from accumulating in the apparatus. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus provided with an air filter at an air inlet, such as an air conditioner or an air purifier, and automatically cleaning the air filter.

  A conventional device having an air filter is provided with an air filter to prevent dust contained in the inhaled air from entering the device, and this air filter is convenient for periodically cleaning the attached dust. It is configured to be detachable for the purpose.

On the other hand, as an air filter device that can easily clean an air filter, an air conditioner that automatically cleans the air filter by sliding a suction nozzle on the upstream side surface of the air filter has been proposed (for example, see Patent Document 1). .
JP 2005-140403 A

  However, the conventional air filter requires periodic maintenance in which the air filter is removed from the device in accordance with the frequency of use, and the dust adhering thereto is cleaned with water or a vacuum cleaner. Further, when maintenance is not performed regularly, there is a problem that dust accumulates on the air filter and the ventilation resistance of the intake air increases, so that the performance of the device is lowered and the power consumption is increased.

  On the other hand, the device described in the above-mentioned publicity is configured to suck dust adhering to the air filter by a suction nozzle provided on the upstream side surface of the air filter, but the suction port of the suction nozzle is only at a position facing the air filter. Therefore, there is a problem that dust that does not adhere to the air filter and falls below the air filter is not sucked.

  The present invention has been made in view of such problems of the prior art, and a tray is provided below the suction nozzle, and dust deposited on the tray without being attached to the air filter is provided at the bottom of the suction nozzle. It is configured to suck at the suction port. Thereby, the dust falling below the air filter without adhering to the air filter can be reliably collected.

  By providing a tray below the suction nozzle, it prevents the falling dust from accumulating without adhering to the air filter, thereby preventing the generation of mold from the accumulated dust, and the suction nozzle below the suction nozzle It is possible to prevent the dust from entering the drive device and causing abnormal operation.

The first invention is a heat exchanger, an air filter that collects dust contained in the air flowing into the heat exchanger, and an air filter that is movable along the upstream surface of the air filter and that collects the air filter. A suction nozzle that sucks the dust and a suction exhaust device that is connected to the suction nozzle and sucks and discharges the dust sucked by the suction nozzle. The suction nozzle has a direction orthogonal to the moving direction of the suction nozzle. By suspending a ring-shaped film that is movable and having a suction hole and forming a receiving tray for receiving dust at the lower part of the suction nozzle in the horizontal range in which the suction nozzle moves, Dust that does not adhere to the air filter and has not been sucked by the suction nozzle can be received by the tray, and the dust can be prevented from dropping and accumulating below the suction nozzle.

  In the second invention, the tray is formed between the suction nozzle and the driving device for driving the suction nozzle. By this structure, dust that does not adhere to the air filter and is not sucked by the suction nozzle can be obtained. It is possible to prevent intrusion into the suction nozzle driving device provided below the suction nozzle and to prevent malfunction of the driving device.

  In a third aspect of the present invention, the suction nozzle has an opening facing the upstream surface of the air filter and the tray, covers the opening with a film, supports the film with a plurality of rollers, and uses a gear. The suspension is movably suspended along the opening, and the suction hole is moved to a position facing the upstream side surface of the air filter and the saucer. By moving the film suction hole to a position opposite to the receiving tray and sucking it and exhausting the dust outside the room, it is possible to prevent the dust from accumulating inside the apparatus and to prevent the generation of mold from the accumulated dust.

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

(Embodiment 1)
FIG. 1 is a perspective view showing an air filter mounting portion of an air conditioner according to Embodiment 1 of the present invention.

  1, 2, and 6, an air filter 2 is an air filter that is disposed upstream of a heat exchanger (not shown) and removes dust contained in the air flowing into the heat exchanger. A suction nozzle 3 that is supported and fixed to the frame 1 and is movable in the left-right direction along the upstream surface of the air filter 2 is provided. Rollers 10 and 11 are attached to the upper and lower sides of the suction nozzle 3, and the rails 4 installed on the upper and lower sides of the filter frame 1 are used as guides so that the air filter 2 can be smoothly moved to the left and right while maintaining a very narrow gap. It has become.

  Furthermore, 5 is a duct formed of a flexible bellows-like hose or the like, one end of which is connected to the suction nozzle 3, and the other end is connected to the suction / exhaust device 6. The exhaust side is connected to an exhaust duct 7 routed outside the room. A driving device 12 and a driving belt 16 are arranged below the filter frame 1. The driving belt 16 is fixed to a belt fixing portion 3 a below the suction nozzle 3, and the suction device 3 is driven by driving the driving device 12. Can be moved freely in the left-right direction.

  In addition, a tray 18 is formed integrally with the filter frame 1 within a range in which the suction nozzle moves below the suction nozzle 3 (see FIGS. 6 and 7). The driving belt 16 of the driving device 12 and the belt fixing portion 3a of the suction nozzle 3 are disposed at the lower part of the tray 18, and the tray 18 collects dust that does not adhere to the air filter 2 and falls downward and is at the lower part. Dust accumulates on the drive parts of the suction nozzle 3 to prevent malfunction of the drive device.

  Next, the details of the structure of the suction nozzle 3 will be described with reference to FIGS.

  2 is a perspective view of the suction nozzle 3, FIG. 3 is a perspective view from the back of the suction nozzle 3, FIG. 4 is a side sectional view of the suction nozzle 3, and FIG.

The suction nozzle 3 includes a nozzle 8 that forms a flow path of the sucked wind, a film 9 that is provided so as to surround the nozzle 8, a gear 14 that supports the film 9 and transmits a driving force, and supports the film 9. And a plurality of rollers 15a, 15b, 15c and 15d for smooth driving. A nozzle opening 8 a is provided on the surface of the nozzle 8 on the side of the air filter 2 and on the bottom surface of the nozzle 8 that faces the tray 18.

  On the other hand, the film 9 is formed in an annular shape and is wound around the outer periphery of the nozzle 8 so as to cover the nozzle opening 8a. The surface on the air filter 2 side has an opening 17a having substantially the same opening shape as the nozzle opening 8a. It is supported by a film guide 17 provided. The film 9 is provided with a slit-like suction hole 9a, and the film 9 is attached so that the position of the suction hole 9a is at a position opposite to the nozzle opening 8a. Drive holes 9b are provided at equal intervals on both sides of the film 9, and the gear 14 connected to the stepping motor 13 meshes with the drive holes 9b, so that the film 9 moves in the vertical direction, that is, on the left and right sides of the suction nozzle 3. It can move freely in a direction perpendicular to the moving direction.

  The size of the 9 suction holes 9 a of the film is determined by the suction force of the suction exhaust device 6. In other words, if a thing with a large suction capacity is used, even if the area of the suction hole is increased, a wind speed sufficient to suck dust can be obtained. If a small thing is used, the area must be reduced to obtain the required wind speed. Don't be.

  Therefore, the length of the suction hole 9a in the vertical direction is a fraction of the length of the air filter 2 in the vertical direction, and the operation of sucking and cleaning the entire surface of the air filter 2 will be described assuming that the length is 1 / N.

  When cleaning starts from the upper right part of the air filter 2, the suction nozzle 3 moves to the right end, and the suction hole 9 a moves to the upper right part of the air filter 2 by the rotation of the film 9. Next, at the same time as the suction / exhaust device 6 works and suction starts, the suction nozzle 3 starts to move to the left by driving the drive device 12. Then, when going to the left end of the air filter 2, the suction nozzle 3 stops, the film 9 starts to move downward, and the height dimension of the suction hole 9a (1 / N of the height dimension of the air filter 2). Just move and stop. At the same time, the suction nozzle 3 starts to move to the right and moves to the right end of the air filter 2. By repeating this N times, the entire surface of the air filter 2 is cleaned.

  When the cleaning of the entire surface of the air filter 2 is finished, the suction nozzle 3 moves to the right and stops, the suction hole 9a of the film 9 passes through the lowermost part of the air filter 2, and faces the tray 18 at the bottom of the suction nozzle 3. Move to the position and stop. At the same time, the suction nozzle 3 starts to move to the left, and the dust accumulated on the tray is sucked and exhausted. Thereby, generation | occurrence | production of the mold | fungus from dust can be prevented by removing the dust accumulated on the saucer 18. FIG. Also, dust can be prevented from scattering inside the device.

  As described above, the air conditioner according to the present invention can suck and exhaust dust adhering to the air filter and suck and exhaust dust that could not be collected by the air filter. It can be widely applied to machines.

The perspective view of the attachment part of the air filter of the air conditioner in Embodiment 1 of this invention Perspective view of suction nozzle of the air conditioner Rear perspective view of the suction nozzle Side view of the suction nozzle Vertical section of the suction nozzle The perspective view of the suction nozzle of the air conditioner in Embodiment 1 of this invention Cross-sectional view of the drive section of the suction nozzle of the air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter frame 2 Air filter 3 Suction nozzle 3a Belt fixing part 4 Rail 5 Duct 6 Suction exhaust apparatus 7 Exhaust duct 8 Nozzle 8a Opening 9 Film 9a Suction hole 10 Roller 11 Roller 12 Drive apparatus 13 Stepping motor 14 Gear 15a-15d Roller 16 Driving belt 17 Film guide 17a Opening 18 Receptacle

Claims (3)

A heat exchanger, an air filter that collects dust contained in the air flowing into the heat exchanger, and a suction that is movable along the upstream surface of the air filter and sucks the dust collected by the air filter A suction exhaust device that is connected to the suction nozzle and sucks and discharges the dust sucked by the suction nozzle, the suction nozzle being movable in a direction orthogonal to the moving direction of the suction nozzle, and a suction hole An air conditioner characterized in that a receiving tray for receiving dust is formed at a lower part of the suction nozzle in a horizontal range in which the suction nozzle moves by suspending an annular film having The air conditioner according to claim 1, wherein the tray is formed between a suction nozzle and a driving device that drives the suction nozzle. The suction nozzle has an opening facing the upstream surface of the air filter and the saucer, covers the opening with a film and supports the film with a plurality of rollers, and along the opening with a gear. 2. The air conditioner according to claim 1, wherein the air conditioner is configured to be suspended so that the suction hole moves to a position facing the upstream side surface of the air filter and the tray.

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