JP2009186058A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To drastically extend the time until filter maintenance by providing a cleaning mechanism of a filter in an air conditioner. <P>SOLUTION: The air conditioner includes a heat exchanger 2 disposed to form an approximate square, a blower 3 disposed in the heat exchanger 2, a drain pan 5 for receiving drain water from the heat exchanger 2, a bell-mouth disposed on a suction side of the blower 3, a decorative panel 7 disposed at a lower part of the bell-mouth 6 and the heat exchanger 2 and having an air suction port, and a filter unit 8 disposed between the bell-mouth 6 and the decorative panel 7. The filter unit 8 is equipped with a cylindrical rotary filter 9, a motor 12 for rotating the rotary filter 9, a brush 10 disposed so as to remove dust adhered to the filter 9 by rotation of the filter 9, and a dust receiver 11 disposed at a lower part of the brush 10 for receiving dust removed by the brush 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air conditioner indoor unit that has a heat exchanger arranged in a substantially rectangular shape and is mainly used by being embedded in a ceiling, and in particular, dust attached to a filter for removing dust in indoor air, etc. It is related with the thing provided with the filter cleaning function which removes.

  As a conventional air conditioner considering that the filter is easily cleaned, there are those described in Patent Document 1 and Patent Document 2.

JP-A-8-285363 JP 2006-292363 A

  In the case of a ceiling-embedded air conditioner, a filter for removing dust is provided on the decorative panel. This filter collects dust (dust) contained in room air so that it does not flow into the indoor body. When a large amount of dust adheres to the filter, the pressure loss at the air inlet of the air conditioner increases, resulting in adverse effects such as performance degradation due to a decrease in air volume. Therefore, it is necessary to remove the dust. Since the decorative panel is usually installed on the ceiling surface of the air-conditioning room, it has been a great effort to remove the filter from the panel.

  In order to solve this, a method of lowering the grill portion where the filter is installed by a motor is generally used, but there is a drawback that periodic filter cleaning is necessary.

  The thing of the said patent document 1 uses a winding type filter in order to make filter cleaning easy. The thing of this literature has the fault that a periodic filter replacement | exchange is required and becomes disposable basically and a running cost increases.

  Moreover, although the thing of the said patent document 2 attracts | sucks and removes the dust adhering to a filter with a suction means, the apparatus for attracting | sucking dust is required, and when cleaning a filter, a vacuum cleaner and Connection work was required, and filter cleaning was not always easy.

  An object of the present invention is to significantly extend the period of filter maintenance by providing a filter cleaning mechanism in an air conditioner.

  Another object of the present invention is to obtain an air conditioner that can always remove dust and the like adhering to a filter and can easily filter cleaning while extending the filter life.

  In order to achieve the above object, the present invention provides a heat exchanger arranged in a substantially square shape, a blower arranged inside the heat exchanger, a drain pan that receives drain water from the heat exchanger, and the blower A bell mouth arranged on the suction side of the battery, a decorative panel having an air inlet installed below the bell mouth and the heat exchanger, and a filter unit arranged between the bell mouth and the decorative panel. In the air conditioner, the filter unit includes a cylindrical rotary filter, a rotating unit that rotates the rotary filter, and a brush that is arranged to remove dust and the like attached to the filter by the rotation of the filter. And a dust receiver disposed below the brush for receiving dust and the like removed by the brush.

  Here, a motor may be used as the rotating means for rotating the rotary filter.

  Alternatively, the rotating means is a rotating blade arranged to rotate by the flow of the intake air of the blower, and the rotating filter may be rotated by the rotation of the rotating blade. If the rotary filter and the rotary blade are configured integrally, the configuration can be simplified.

  The heat exchanger, the blower, the drain pan, and the bell mouth are integrally configured as a main unit, and the main unit, the filter unit, and the decorative panel may be combined to form an air conditioner.

  Alternatively, the heat exchanger, the blower, the drain pan, and the bell mouth may be integrally configured as a main body unit and may be configured integrally with the filter unit.

  In the present invention, since the air conditioner is provided with a filter cleaning function, the filter can be easily cleaned, and the filter maintenance period can be greatly extended. In addition, it is possible to eliminate the need for filter maintenance work, which has conventionally been a high place work.

  If the filter is always rotated during operation of the air conditioner, dust and the like adhering to the filter can always be removed, and the filter life can be extended while facilitating filter cleaning.

  Furthermore, it is possible to easily avoid the occurrence of pressure loss due to clogging of the filter, and it is possible to prevent a reduction in the performance of the air conditioner. Furthermore, it is possible to prevent bacteria from growing in the dust adhering to the filter, and provide a clean and comfortable air conditioning.

  In this embodiment, a cylindrical filter is employed, and this is rotated, and a filter cleaning mechanism is provided that removes dust (dust) attached to the filter with a brush. As a means for rotating the cylindrical filter, there are a method using a rotation motor and a method in which a blade is provided on the cylindrical filter and rotated by suction air. In addition, a dust catcher is placed at the bottom of the brush so that the dust removed by the brush will fall into the room.

  According to this embodiment, when the cylindrical filter rotates, the brush removes dust adhering to the filter, so that manual filter cleaning is not necessary, and maintenance can be as simple as removing dust accumulated in the dust receiver. Become.

  In addition, by rotating the filter at all times, it is possible to operate the air conditioner with almost no dust adhering to the filter, so that the pressure loss at the air conditioner suction port does not increase and the air volume is reduced. Capability reduction can be suppressed. Furthermore, the noise level of the air conditioner can also be maintained in a steady state.

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

  A first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 shows a ceiling-embedded air conditioner (indoor unit) with a four-way outlet. In the air conditioner main body 1, a substantially square heat exchanger 2, a blower 3 installed in the heat exchanger 3, a fan motor 4 for driving the blower 4, and the suction port side of the blower 3 are arranged. A bell mouth 6 and a drain pan 5 installed below the heat exchanger are arranged. Usually, the decorative panel 7 is attached to the lower part of the air conditioner body 1 for use, but in this embodiment, the filter unit 8 is sandwiched between the air conditioner body 1 and the decorative panel 7. The filter unit 8 includes a cylindrical rotary filter 9, a brush 10 that is disposed in contact with the filter and removes dust and the like (dust) attached to the filter, a dust receiver 11 that is installed below the brush, and a filter. A motor (rotating means) 12 for rotating and a rotating head 13 for transmitting the rotation of the motor so that the filter rotates are provided. Further, a ventilation path forming member 14 is provided for securing a ventilation path for blown air, and an upper surface seal 15 and a lower surface seal 16 are provided for securing a ventilation path for suction air.

  As the flow of wind, the air sucked from the air suction port 17 of the decorative panel 7 is guided to the outside of the cylindrical rotary filter 9 by the lower surface seal 16 and is sucked into the inside of the cylindrical rotary filter 9. Dust is removed by the rotary filter 9. Then, it passes through the bell mouth 6 and reaches the blower 3. Air is pushed out of the heat exchanger 2 by the blower, passes through the ventilation path formed by the ventilation path forming member 14, and is discharged from the blower outlet 18 of the decorative panel 7 to the outside of the machine.

  FIG. 2 is an enlarged view of the cylindrical rotary filter 9 and its peripheral members. The rotary head 13 is rotated by the filter rotating motor 12, and the cylindrical filter rotates on the rail 19 by bringing the rotary head into contact with the cylindrical rotary filter 9. The dust 10 in the air adhering to the outer periphery of the cylindrical filter due to the wind flow described above is removed by the brush 10. Since the filter stands vertically, the removed dust falls and is stored in the dust receiver 11 disposed below the brush. The cylindrical rotary filter is always rotated during operation, so that dust is always removed, and the filter is always kept free of dust or little.

  As the maintenance of the filter, it is only necessary to clean the dust receiver, so that the maintenance work is easy.

  In an air conditioner, the relationship between ventilation resistance and air volume or cooling / heating capacity is usually as shown in FIG. Ventilation resistance increases due to the amount of dust adhering to the filter. In the case of an air conditioner having a control in which the rotation speed of the fan motor is constant, the motor rotation speed is constant even if the ventilation resistance is increased. For this reason, the actual air volume decreases due to the increase in ventilation resistance, and the cooling or heating capacity also decreases. In this embodiment, while the air conditioner is in operation, dust is removed by always rotating the cylindrical rotary filter, so the ventilation resistance can be kept low at the initial stage. Therefore, comfortable air conditioning can be maintained without any reduction in the performance of the air conditioner. Furthermore, by keeping the filter in a clean state, the bacteria do not propagate, no off-flavors, etc. occur, and allergens do not grow, so that a clean and comfortable air quality can be provided.

  A second embodiment of the present invention will be described with reference to FIG. 1 and 2 denote the same or corresponding parts. In this embodiment, the appearance is the same as that of Embodiment 1, but the rotation method of the cylindrical rotary filter inside the filter unit is different. FIG. 4 is an enlarged view showing a cylindrical rotary filter portion inside the filter unit. A rotating blade (rotating means) 22 is attached to the cylindrical rotary filter 21. The suction air generated by the blower 3 collides with the rotor blades, causing the cylindrical rotary filter 21 to rotate, and dust or the like adhering to the filter surface is removed by the brush 10. The removed dust falls and is stored in the dust receiver 11 installed below the brush.

  In this embodiment, it is not necessary to use a motor as a rotating means for rotating the filter, and there is an advantage that the structure can be simplified.

  A third embodiment of the present invention will be described with reference to FIG. In the present embodiment, the filter unit shown in the first embodiment is also incorporated into the air conditioner main body 23 to be integrated. According to the present embodiment, it is only necessary to attach the decorative panel to the air conditioner body, and the work during assembly can be simplified. The internal structure and other effects are the same as those in the first embodiment.

The longitudinal cross-sectional view of the air conditioner which shows Example 1 of this invention. The perspective view which expands and shows the cylindrical rotation filter shown in FIG. 1, and the member of the wind side. The diagram which shows the relationship between ventilation resistance, an air volume, and the cooling / heating capability of an air conditioner. FIG. 5 is a diagram illustrating a second embodiment of the present invention and corresponding to FIG. 2. The longitudinal cross-sectional view which shows Example 3 of this invention.

Explanation of symbols

1, 23 Air conditioner body 2 Heat exchanger 3 Blower 4 Fan motor 5 Drain pan 6 Bell mouth 7 Cosmetic panel 8 Filter unit 9, 21 Rotating filter 10 Brush 11 Dust receiver 12 Filter rotating motor (rotating means)
13 Rotating head 14 Ventilation path forming member 15 Upper surface seal 16 Lower surface seal 17 Suction port 18 Air outlet 19 Rail 20 Dust 22 Rotating blade (rotating means)

Claims (6)

A heat exchanger arranged in a substantially square shape, a blower arranged inside the heat exchanger, a drain pan for receiving drain water from the heat exchanger, a bell mouth arranged on the suction side of the blower, In the air conditioner having the decorative panel having an air suction port installed below the bell mouth and the heat exchanger, and a filter unit disposed between the bell mouth and the decorative panel,
The filter unit includes a cylindrical rotary filter, a rotating means for rotating the rotary filter, a brush arranged to remove dust attached to the filter by the rotation of the filter, and a lower portion of the brush And an air conditioner, wherein the air conditioner is provided with a dust receiver that receives dust removed by the brush.   2. An air conditioner according to claim 1, wherein the rotating means for rotating the rotary filter is a motor.   In Claim 1, The said rotation means is a rotary blade arrange | positioned so that it may rotate with the flow of the suction air of the said air blower, It is comprised so that the said rotary filter may be rotated by rotation of this rotary blade. A featured air conditioner.   4. The air conditioner according to claim 3, wherein the rotary filter and the rotary blade are integrally formed.   5. The heat exchanger, the blower, the drain pan, and the bell mouth are integrally configured as a main unit, and the main unit, the filter unit, and a decorative panel are combined. An air conditioner characterized by   The air according to any one of claims 1 to 4, wherein the heat exchanger, the blower, the drain pan, and the bell mouth are integrally configured as a main body unit and are also integrally configured with the filter unit. Harmony machine.

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