JP2007085624A - Filter device of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter device for an air conditioner having improved cleaning performance with almost no need for maintenance. <P>SOLUTION: The filter device for the air conditioner comprises an air filter 18 for collecting dust in the air passing through a heat exchanger, a dust removing member 32 for removing the dust deposited on the air filter 18, a dust receiving part 20 for receiving the dust removed by the dust removing member 32, and a suction device 38 capable of being communicated with the dust receiving part 20, and the dust receiving part 20 has an air inflow port 36. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an air conditioner filter device that automatically cleans an air filter provided in an air inlet of an indoor unit.

  In a conventional air conditioner filter device, an air filter is provided on the front surface of the heat exchanger to prevent dust from entering the inside of the air conditioner body. It is configured to be detachable so that it can be cleaned. In addition to requiring frequent maintenance, the filter device with this configuration gradually clogs the air filter until maintenance is performed, resulting in a reduction in the amount of air passing through the heat exchanger. As a result, the air conditioning capacity is reduced, leading to an increase in power consumption.

For this reason, in order to reduce the maintenance of the air filter, an automatic cleaning device that periodically cleans dust adhering to the air filter with a brush has been proposed (for example, see Patent Document 1).
JP 2001-99479 A

  However, the automatic cleaning device described in Patent Document 1 needs to process dust collected by scraping with a brush after a certain amount of time has elapsed, and the maintenance effort has not been greatly reduced.

  The present invention has been made in view of such problems of the prior art, and an object of the present invention is to provide an air conditioner filter device excellent in cleaning performance that requires little maintenance.

  In order to achieve the above object, the invention according to claim 1 of the present invention includes an air filter for collecting dust in the air that passes through the heat exchanger, and dust attached to the air filter. A dust removing member for removing the dust, a dust containing portion for storing the dust removed by the dust removing member, and a suction device that can communicate with the dust containing portion, and an air inlet port to the dust containing portion Is provided.

  The invention described in claim 2 is characterized in that the air inflow port is provided at a position located on the most upstream side with respect to the communication portion between the dust storage portion and the suction device.

  Furthermore, the invention described in claim 3 is characterized in that the air inlet can be freely opened and closed.

  According to the present invention, the dust adhering to the air filter can be sucked into the dust container by the dust removing member and sucked by the suction device and collected in the dust collector or discharged to the outside. do not need. Further, since the air inlet is provided in the dust storage part, all the dust scraped off in the dust storage part is sucked into the suction device and then discarded, so that the cleaning performance is excellent.

  In addition, if the air inlet provided in the dust storage part can be opened and closed freely, the dust adhering to the air filter is scraped off by the dust removing member, collected in the dust storage part, and then sucked at a stroke by the suction device. It is possible to collect dust or discharge to the outside.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of an indoor unit of an air conditioner according to the present invention, and FIG. 2 is a cross-sectional view taken along line II-II in FIG.

  As shown in FIG. 2, a heat exchanger 4 is provided inside the main body 2 of the indoor unit, and a wind passage 6 serving as an air passage is formed. A fan 8 is disposed in the air flow path 6, and generates a flow of air that is sucked from a suction port 10 that is formed from the front surface to the upper surface of the main body 2 and blown from a blower outlet 12. In addition, a filter device 14 is disposed between the suction port 10 and the heat exchanger 4, and air is sucked by the operation of the fan 8 from the suction port 10 formed in the main body 2, and dust drifts in the air. Is removed by the filter device 14.

  As described above, since the suction port 10 is formed from the front surface to the upper surface of the main body 2, the filter device 14 is bent in a substantially L shape.

  3 is a perspective view of the filter device 14, FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3, and FIG. 5 is a cross-sectional view taken along line V-V in FIG.

  As shown in FIG. 3, the filter frame 16 holds an air filter 18 that removes dust in the air that passes through the heat exchanger 4, and the dust storage unit 20 sandwiches the air filter 18 and the filter frame 16. Is provided. The dust container 20 is supported by a pair of guide rails 22 installed at the upper and lower ends of the filter frame 16 via rollers 24 as shown in FIG. The dust container 20 is driven left and right by a wire 26 and a drive motor 28 provided at the lower part of the filter frame 16, and the wire 26 is connected to a pulley 30 attached to one end of the guide rail 22 and a pulley 30 attached to the drive motor 28. It is stretched.

  Further, the dust storage unit 20 is provided with a dust removing member 32 as shown in FIGS. 4 and 5, and has a suction port 34 at the lower part and an air inlet 36 at the upper part.

  Further, a suction device 38 is provided at one end of the filter frame 16, a suction communication port 40 is provided at one end side of the suction device 38, and an exhaust air drawn to the outside at the other end side of the suction device 38. A duct 42 is connected.

The operation and action of the filter device 14 configured as described above will be described below.
When the operation of the filter device 14 is stopped, the dust container 20 is stopped at the right end of the filter frame 16.

  When the filter device 14 is operated, the dust container 20 slides in the left direction, and the dust removing member 32 contacts the air filter 18 with the dust attached to the air filter 18 by the dust removing member 32 provided inside. As a result, the dust is scraped off and collected in the dust container 20. The dust storage unit 20 stops operating when it reaches the leftmost end of the filter frame 16, and the suction port 34 provided in the dust storage unit 20 and the suction communication port 40 provided in the suction device 38 are communicated. Here, when the suction device 38 is operated, the dust collected in the dust storage portion 20 is guided to the suction device 38 by the suction air flowing from the air inlet 36 provided in the dust storage portion 20 and is exhausted. It is discharged out of the room through the duct 42.

  In this way, dust adhering to the air filter 18 is automatically removed.

  In the present embodiment, the dust container 20 is slid left and right along the filter frame 16, but may be slid up and down along the filter frame 16.

  The air inlet 36 of the dust storage unit 20 is preferably provided on the most upstream side with respect to the suction port 34. In this case, the suction air can flow into the entire area of the dust storage unit 20 and collect the dust. It is possible to suck the discharged dust without leaving it and to discharge it to the outside.

  It should be noted that an open / close valve (not shown) and an open / close motor (not shown) for operating the open / close valve may be provided at the air inlet 36 of the dust container 20 so that the air inlet 36 can be opened and closed. In this case, the air inlet 36 is normally closed by an on-off valve and opens in conjunction with the operation of the suction device 38. In this configuration, dust adhering to the air filter 18 is scraped off by the dust removing member 32 and collected in the dust storage unit 20, and then the suction device 38 is operated to suck the collected dust all at once and discharge it outside the room. be able to. For this reason, the operating time of the suction device 38 can be shortened to save energy, and the noise generation time can also be shortened, so that comfort can be improved.

  As described above, the filter device of the air conditioner according to the present invention can automatically clean the dust adhering to the air filter and has excellent maintainability, so that it is in the air like an air purifier or the like. It can also be applied to equipment equipped with an air filter that collects dust.

It is a front view of the indoor unit of the air conditioner concerning the present invention. It is sectional drawing along line II-II in FIG. It is a perspective view of the filter apparatus provided in the indoor unit of FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. FIG. 5 is a cross-sectional view taken along line VV in FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Main body 4 Heat exchanger 6 Air flow path 8 Fan 10 Suction port 12 Outlet 14 Filter device 16 Filter frame 18 Air filter 20 Dust storage part 22 Guide rail 24 Roller 26 Wire 28 Drive motor 30 Pulley 32 Dust removal member 34 Suction port 36 Air inlet 38 Suction device 40 Suction communication port 42 Exhaust duct

Claims (3)

An air filter for collecting dust in the air passing through the heat exchanger, a dust removing member for removing dust attached to the air filter, and storing dust removed by the dust removing member An air conditioner filter device comprising: a dust storage portion; and a suction device that can communicate with the dust storage portion; and an air inlet is provided in the dust storage portion. 2. The filter device for an air conditioner according to claim 1, wherein the air inflow port is provided at a position located on the most upstream side with respect to a communication portion between the dust storage portion and the suction device. The air conditioner filter device according to claim 1 or 2, wherein the air inflow port is freely openable and closable.

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