JP5061837B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly to an air conditioner that automatically cleans an air filter.

  Conventionally, in this type of air conditioner, an air filter for preventing dust from entering the inside of the main body of the air conditioner has been provided on the front surface of the heat exchanger. Was detachable so that it could be cleaned by hand. Such an air filter not only requires frequent maintenance, but the air filter gradually becomes clogged until the maintenance is performed, and as a result, the amount of air passing through the heat exchanger is reduced. There has been a problem that the air conditioning capacity is reduced, leading to an increase in power consumption.

Therefore, for the purpose of reducing the maintenance work of the air filter, it is substantially L-shaped and can be moved to the left and right along the surface of the air filter, and is attached to the air filter side surface of the suction nozzle. Equipped with a suction port for sucking in dust, an intake / exhaust device that communicates with the suction port, sucks dust through the suction port, and discharges the sucked dust to the outside so that the air filter can be cleaned regularly An air conditioner has been proposed (see, for example, Patent Document 1).
JP 2004-283704 A

  However, in the configuration of the conventional air conditioner as disclosed in Patent Document 1, an L-shaped suction nozzle is disposed on the front surface of the air filter, and the structure is complicated because the suction nozzle is driven left and right. In addition, since the size of the suction nozzle is long, the distance from the suction port for sucking dust to the suction / exhaust device for sucking and discharging dust is long and bent, resulting in a large pressure loss, a reduction in suction air volume and cost. There was a problem that the operation sound increased and the operation sound increased. Furthermore, when dust containing a large amount of oil adheres to the air filter, there is a problem that the dust cannot be reliably scraped off and the dust at the curved portion of the air filter cannot be reliably sucked.

  The present invention solves the above-described conventional problems, and provides an air conditioner that has a simple configuration, has low pressure loss and operation sound, and can reliably remove dust containing a large amount of oil from an air filter. With the goal.

In order to solve the conventional problems, an air conditioner according to the present invention includes a heat exchanger and a filter device disposed on the upstream side of the heat exchanger, and the filter device includes a winding device. A take-up shaft, an air filter stretched between the take-up shaft, a filter take-up drive motor for driving the take-up shaft, and a windward side of the air filter, which is longitudinal in the horizontal direction And a suction nozzle for sucking dust adhering to the air filter, and a film that is driven to be wound in the longitudinal direction of the suction nozzle is provided in the suction nozzle, and the dust of the air filter is provided on the film. comprising a dust scraping pad scraping, a brush scraping laden dust and oil, a suction port for sucking the scraped dust by the scraping pad and the brush, the air conditioner After stopping the operation of the film, the film is wound and driven to suck in dust sucked while moving the pad and the brush, and the film is temporarily stopped to drive the filter winding drive motor. The air filter is wound around the winding shaft and stopped, and the film is again driven to wind and the pad and the brush are moved to suck the dust scraped into the suction port repeatedly. The entire surface of the air filter is automatically cleaned . The suction nozzle is fixed in the horizontal direction , and the air filter is driven by alternately driving the film wound around the suction nozzle and the air filter. Can be cleaned automatically .

  The air conditioner of the present invention has a simple configuration, low pressure loss and operation noise, and automatically removes oily dust from the air filter without impairing the basic performance of the air conditioner. An air conditioner that can be provided can be provided.

1st invention is an air conditioner which has a heat exchanger and the filter apparatus distribute | arranged to the upstream of the said heat exchanger, The said filter apparatus spans between a winding shaft and the said winding shaft. The air filter stretched, a filter winding drive motor that drives the winding shaft, and a windward side of the air filter, has a horizontal direction in the longitudinal direction, and dust attached to the air filter. A suction nozzle is provided, and a film wound in the longitudinal direction of the suction nozzle is provided in the suction nozzle, and the film contains a dust scraping pad for scraping dust of the air filter and a large amount of oil. I brush scraping dust, comprising a suction port to suck scraped dust by the scraping pad and the brush, the film driving winding after shutdown of the air conditioner Dust scraped off while moving the pad and the brush is sucked into the suction port, the film is temporarily stopped, the filter winding drive motor is driven, and the air filter is wound around the winding shaft. The operation of repeatedly winding the film and moving the pad and the brush to suck the dust removed while moving the pad and the brush is repeated to automatically clean the entire surface of the air filter. The suction nozzle is fixed in the horizontal direction , and the entire surface of the air filter is automatically cleaned by alternately driving the film wound around the suction nozzle and driving the air filter, thus simplifying the configuration. Moreover, when a suction / exhaust device for sucking and exhausting dust is provided, it can be directly connected to the suction nozzle, reducing pressure loss and operating noise. , Moreover, it is also laden dust the oil automatically removed reliably from the air filter.

  In the second invention, in particular, the brush is arranged so as to be sandwiched between the suction port and the scraping pad in the vicinity of the suction port of the first invention, and the effect of reliably scraping dust containing oil is obtained. It is done. Furthermore, automatic cleaning of the filter can be realized without impairing the basic performance of the air conditioner.

  In the third invention, in particular, a brush is disposed on both sides of the suction port of the first or second invention so as to be sandwiched between the suction port and a scraping pad, and the dust containing oil is surely scraped. The effect to take is obtained. Furthermore, automatic cleaning of the filter can be realized without impairing the basic performance of the air conditioner.

  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)
1 is a front view of an air conditioner body of an air conditioner according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of the air conditioner body, and FIG. 3 is a perspective view of a filter device of the air conditioner. 4 and 4 are external views of the suction nozzle of the filter device, and FIG. 5 is a partial perspective view of the suction nozzle.

  1-5, the heat exchanger 9 and the air blower 10 are arrange | positioned inside the air conditioner main body 11 (henceforth "main body 11") of the air conditioner in this Embodiment, The main body 11 Indoor air is sucked by the operation of the blower 10 from a plurality of suction ports (not shown) formed from the front surface to the upper surface of the air, and dust floating in the air is more upstream from the heat exchanger 9. Specifically, it is removed by the filter device 1 provided between the suction port and the heat exchanger 9.

  The filter device 1 includes a filter frame 2, a belt-like air filter 4, a suction nozzle 3 that is disposed on the windward side of the air filter 4, has a horizontal direction in the longitudinal direction, and sucks dust adhering to the air filter 4, A suction exhaust device 5 that communicates with the end of the nozzle 3 and sucks and discharges dust through the suction nozzle 3 is provided.

  The suction nozzle 3 incorporates a film 3d wound in the longitudinal direction of the suction nozzle 3, and the film 3d has a long side in a direction substantially perpendicular to the driving direction of the film 3d and has a rectangular shape. A suction port 3a having a box-shaped convex shape, a brush 3b having a long side in a direction substantially perpendicular to the driving direction of the film 3d, and having a rectangular shape and scraping off dust containing a large amount of oil; A dust scraping pad 3c having a long side in a direction substantially perpendicular to the driving direction of the film 3d and having a rectangular shape for scraping dust is provided so as to be movable in the left-right direction. At both ends of the filter frame 2, a winding shaft 8 that winds the air filter 4 and a filter winding drive motor 7 that rotationally drives the winding shaft 8 are disposed.

  The operation of the filter device 1 configured as described above will be described.

  After the operation of the air conditioner 11 is stopped, the suction / exhaust device 5 starts operating, and the box-shaped convex suction port 3a located at one end of the air filter 4 and a brush that scrapes off dust containing a large amount of oil. 3b and the dust scraping pad 3c are moved in the direction of the arrow A as shown in FIG. 4 by the film drive motor 6, and dust adhering to the front surface of the air filter 4 is scraped off by the dust scraping pad 3c. Further, dust containing a large amount of oil is sucked from the suction port 3a having a box-shaped convex shape while being scraped off by the brush 3b, and the dust is sucked into the suction / exhaust device 5. When the box-shaped convex suction port 3a moves to the opposite one end, if the film drive motor 6 is rotated in the reverse direction, the box-shaped convex suction port 3a is at the initial position. Return.

  Here, the filter take-up drive motor 7 is driven, the air filter 4 is wound around the take-up shaft 8, the dust-attached portion is positioned at the box-shaped convex suction port 3 a, and the film drive motor again. 6 is driven, the suction port 3a having a box-like convex shape and the brush 3b and the dust scraping pad 3c for scraping off dust containing a large amount of oil move in the direction of the arrow A as shown in FIG.

  Again, when the box-shaped convex suction port 3a moves to the opposite one end, the film drive motor 6 is rotated in the reverse direction so that the box-shaped convex suction port 3a is in the initial position. Return to. By repeating the above operation, the entire surface of the air filter 4 can be automatically cleaned.

  As described above, according to the present embodiment, the dust that does not contain oil can be obtained by the suction port 3a having a box-shaped convex shape and the brush 3b that scrapes off dust containing a large amount of oil and the dust scraping pad 3c. Since the dust scraped off by the dust scraping pad 3c and containing a large amount of oil is scraped off by the brush 3b, an effect of reliably scraping off the dust can be obtained. Furthermore, the effect which can implement | achieve automatic cleaning of the air filter 4 without impairing the basic performance of an air conditioner is acquired.

  In the present embodiment, as shown in FIGS. 4 and 5A, the dust scraping pad 3c is arranged so as to sandwich the brush 3b with the suction port 3a. As a result, dust that does not contain oil is scraped off by the dust scraping pad 3c, and dust that contains a large amount of oil that could not be scraped off by the dust scraping pad 3c is scraped off by the brush 3b. Scraping effect is obtained. Furthermore, the effect which can implement | achieve the automatic cleaning of a filter is obtained, without impairing the basic performance of an air conditioner.

  Further, as shown in FIG. 5B, the dust scraping pad 3c is arranged so as to sandwich the brush 3b that scrapes off dust containing a large amount of oil between the suction port 3a and the vicinity of the suction port 3a. Similarly, if the dust scraping pad 3c is disposed so as to sandwich the brush 3b that scrapes off the dust containing a large amount of oil with the suction port 3a on the opposite side, the dust is more reliably secured. Scraping effect is obtained. Furthermore, the effect which can implement | achieve the automatic cleaning of a filter is obtained, without impairing the basic performance of an air conditioner.

  As described above, the air conditioner according to the present invention is capable of automatically cleaning dust adhering to the air filter with a simple configuration, and therefore is equipped with an air filter for collecting dust such as an air purifier. It can also be applied to the use of such equipment.

The front view of the air conditioner main body of the air conditioner in Embodiment 1 of this invention. Sectional view of the air conditioner main body (II cross section in FIG. 1) Perspective view of the filter device of the air conditioner External view of the suction nozzle of the filter device (A) Partial perspective view of the same suction nozzle (b) Partial perspective view of the suction nozzle showing another example

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter apparatus 2 Filter frame 3 Suction nozzle 3a Suction port 3b Brush 3c Dust scraping pad 3d Film 4 Air filter 5 Suction exhaust apparatus 6 Film drive motor 7 Filter winding drive motor 8 Winding shaft 9 Heat exchanger 11 Air conditioner Body (body)

Claims (3)

In the air conditioner having a heat exchanger and a filter device disposed on the upstream side of the heat exchanger, the filter device includes a winding shaft and an air stretched between the winding shafts A filter, a filter take-up drive motor that drives the take-up shaft, and a suction nozzle that is disposed on the windward side of the air filter, has a horizontal direction in the longitudinal direction, and sucks dust adhering to the air filter, The suction nozzle is provided with a film that is wound in the longitudinal direction of the suction nozzle, and a dust scraping pad for scraping dust from the air filter and a brush for scraping dust containing a large amount of oil on the film. If, comprising a suction port to suck scraped dust by the scraping pad with the brush, and the pad to the film by driving the winding after the operation stop of the air conditioner Dust scraped off while moving the brush is sucked into the suction port, the film is temporarily stopped, the filter winding drive motor is driven, and the air filter is wound around the winding shaft and stopped. The film is again wound and driven, and the operation of repeatedly sucking the dust scraped while moving the pad and the brush into the suction port is repeated to automatically clean the entire surface of the air filter. Air conditioner. The air conditioner according to claim 1, wherein a brush is disposed in the vicinity of the suction port and sandwiched between the suction port and the scraping pad. The air conditioner according to claim 1 or 2, wherein a brush is disposed on both sides of the suction port so as to be sandwiched between the suction port and a scraping pad.

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