JP2008256294A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner provided with an automatically-cleanable filter device 1. <P>SOLUTION: In this air conditioner having an air distribution circuit and the filter device 1 disposed in the air distribution circuit, the filter device 1 comprises take-up shafts 8, an air filter 4 expanded over the take-up shafts 8, a driving motor 7 for driving the take-up shafts 8, and a suction nozzle 3 disposed at a windward side of the air filter 4, having its longitudinal direction in the horizontal direction, and sucking dust attached to the air filter 4. The suction nozzle 3 has a dimension not disturbing the air distribution circuit in the direction roughly orthogonal to the longitudinal direction, while securing its suction performance. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air conditioner that automatically cleans an air filter.

  Conventionally, an air conditioner filter device has been provided with an air filter 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. The filter device with such a configuration not only requires frequent maintenance, but also gradually clogs the air filter until the maintenance is performed, resulting in a reduction in the amount of air passing through the heat exchanger. However, the air conditioning capability is reduced, leading to an increase in power consumption.

For this reason, for the purpose of reducing the maintenance work of the air filter, as shown in FIG. 5, a suction nozzle 4 that is movable to the left and right for sucking dust adhering to the air filter 5 is provided as shown in FIG. An automatic cleaning device has been devised in which an L-shaped nozzle 4 is brought into contact with the air filter 5 and a suction port is provided in a contact surface portion of the suction nozzle 4 to periodically clean the device (see, for example, Patent Document 1).
JP 2004-283704 A

  However, in the conventional configuration, the structure is complicated because the L-type suction nozzle is driven left and right on the front surface of the air filter, and the size of the suction nozzle is long, so that dust is sucked from the dust suction port. Since the distance to the intake / exhaust device to be discharged is long and bent, there is a problem that the pressure loss is large and the intake / exhaust device is increased in size and cost.

  In order to solve the above-mentioned conventional problems, the present invention provides a filter device having a winding shaft, an air filter stretched between the winding shafts, a drive motor for driving the winding shaft, The air filter has a suction nozzle that has a longitudinal direction in the horizontal direction and sucks dust adhering to the air filter on the windward side of the air filter, and the suction nozzle is provided in a portion other than the blower circuit. It is an air conditioner.

  The filter device of the present invention enables automatic cleaning of dust adhering to the air filter with a simple configuration and with a small suction air volume, and can achieve automatic cleaning of the filter without impairing the basic performance of the air conditioner. Attached.

1st invention is an air conditioner which has a filter apparatus in the ventilation circuit and the said ventilation circuit, Comprising: A tension | tensile_strength spans between several winding shafts and these winding shafts in the said filter apparatus. An air filter provided; a drive motor for driving the take-up shaft; and a suction nozzle for sucking dust adhering to the air filter having a longitudinal direction in a horizontal direction on the windward side of the air filter. The nozzle is provided in a part other than the blower circuit, and with this configuration, the automatic cleaning of dust adhering to the air filter is simple, the pressure loss is suppressed with a simple structure, and the dust is sucked in with a small airflow. The effect of inhaling is surely 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.

  In the second invention, in particular, in the suction nozzle of the first invention, a film wound and driven in the longitudinal direction of the suction nozzle, and a dust scraping pad for scraping dust of an air filter on the film, A suction port for sucking dust is provided in the vicinity of the dust scraping pad, and the suction port has a long side in a direction substantially perpendicular to the driving direction of the film. Can be secured to the maximum, and the effect of reliably sucking dust adhering to the air filter can be obtained.

  In the third invention, in particular, there is provided an inlet for sucking dust in the vicinity of both sides of the dust scraping pad for scraping the dust of the first or second invention. The maximum suction performance can be secured, and the effect of reliably sucking dust adhering to the air filter can be obtained.

  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 of the filter device according to Embodiment 1 of the present invention. 2 is an external view of the suction nozzle of the filter device according to the first embodiment of the present invention, FIG. 3 is a front view of the indoor unit according to the first embodiment of the present invention, and FIG. 4 is an air conditioner according to the first embodiment of the present invention. It is sectional drawing of a machine.

  First, a heat exchanger 9 and a blower 10 are disposed inside the air conditioner main body 11, and a blower is provided from a plurality of suction ports (not shown) formed from the front surface to the upper surface of the main body 11. Air is sucked in by the operation 10, and dust floating in the air 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 strip-shaped air filter 4, and a suction nozzle 3 that has a longitudinal direction in the horizontal direction and sucks dust adhering to the air filter 4 on the windward side of the air filter 4. A suction / exhaust device 5 for sucking and discharging dust sucked into the suction nozzle 3 is provided at the end of the suction nozzle 3.

  The suction nozzle 3 incorporates a film 3c wound in the longitudinal direction of the suction nozzle 3, and the film 3c has a suction port 3a having a rectangular shape having a long side in a direction substantially perpendicular to the driving direction of the film. And a dust scraping pad 3b having a rectangular shape having a long side in a direction substantially perpendicular to the driving direction of the film is provided so as to be movable in the left-right direction. A filter take-up drive motor 7 and a take-up shaft 8 are disposed at both ends of the filter frame 2.

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 suction port 3a and the dust scraping pad 3b located at one end of the air filter 4 are shown in FIG. In this way, it moves in the direction of the arrow A and sucks dust from the suction port 3 a while scraping dust adhering to the front surface of the air filter 4, and the dust is sucked into the suction / exhaust device 5. Then, if the film drive motor 6 is rotated reversely when the suction port 3a moves to the opposite one end, the suction port 3a returns to the initial position. 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 intake port 3 a, and the suction port 3 a and dust are scraped off again by the film drive motor 6. The pad 3b moves in the direction of the arrow A as shown in FIG. Again, when the suction port 3a moves to the opposite one end, the film drive motor 6 is reversely rotated, and the suction port 3a returns to the initial position. By repeating the above operation, the entire surface of the air filter 4 can be automatically cleaned.

  Here, as shown in FIG. 4, the suction nozzle 3 is provided below the blower 10 and other than the blower circuit, and further, the suction port 3a has a size that can secure the suction performance. The filter can be automatically cleaned without damaging the filter.

(Embodiment 2)
As shown in FIG. 2, in the suction nozzle 3, a film 3c that is wound and driven in the longitudinal direction of the suction nozzle 3, and a dust scraping pad 3b that scrapes dust of the air filter 4 on the film 3c and a dust scraper. A suction port 3a for sucking dust is provided in the vicinity of the catch pad 3b, and the suction port 3a has a long side in a direction substantially perpendicular to the driving direction of the film 3c, so that the dust suction performance can be ensured to the maximum. An effect of reliably sucking dust adhering to the filter 4 can be obtained.

(Embodiment 3)
As shown in FIG. 2, the suction port 3a for sucking dust is provided in the vicinity of both sides of the dust scraping pad 3b for scraping dust, so that the dust suction performance can be secured to the maximum and the dust filter adheres to the air filter 4. An effect of reliably sucking dust can be obtained.

  As described above, the air conditioner according to the present invention can automatically clean dust adhering to the air filter with a simple configuration and a small suction air volume, and thus collects dust such as an air cleaner. It can also be applied to applications such as equipment equipped with dust filters.

The perspective view of the filter apparatus which shows one Example of this invention 1 is an external view of a suction nozzle of a filter device showing an embodiment of the present invention. The front view of the air conditioner which shows one Example of this invention Sectional drawing of the air conditioner by II of FIG. 3 which shows one Example of this invention A perspective view of a filter device of a conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter apparatus 2 Filter frame 3 Suction nozzle 3a Suction port 3b Dust scraping pad 3c Film 4 Air filter 5 Suction exhaust apparatus 6 Film drive motor 7 Filter winding drive motor (drive motor)
8 Winding shaft

Claims (3)

An air conditioner having a blower circuit and a filter device in the blower circuit, wherein the filter device has a plurality of winding shafts, and an air filter stretched between the plurality of winding shafts. A drive motor for driving the take-up shaft, and a suction nozzle for sucking dust adhering to the air filter having a longitudinal direction in the horizontal direction on the windward side of the air filter, and the suction nozzle other than the blower circuit The air conditioner characterized by being provided in the part of. In the suction nozzle, a film wound and driven in the longitudinal direction of the suction nozzle, a dust scraping pad for scraping dust of an air filter on the film, and a suction port for sucking dust in the vicinity of the dust scraping pad The air conditioner according to claim 1, wherein the suction port has a long side in a direction substantially perpendicular to a driving direction of the film. The air conditioner according to claim 1 or 2, wherein a suction port for sucking dust is provided in the vicinity of both sides of the dust scraping pad for scraping dust.

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