JP2008133973A - Air conditioner - Google Patents

Abstract

An air conditioner capable of automatically cleaning an air filter is provided.
A suction port 5 for sucking outside air, and an air filter 6 on the windward side of the suction port 5, and has a suction port 9 b facing the air filter 6 to suck dust adhering to the air filter 6. A slidable suction nozzle 9, a drive motor 16 for driving the suction nozzle 9, a suction exhaust device 11 that communicates with the suction nozzle 9 and sucks and exhausts dust together with air, and the suction exhaust device 11 and the suction nozzle 9. The air conditioner 1 is installed in a ceiling provided with a communication means 10 that communicates with the air filter 6. The air conditioner 1 can be configured with a simple structure for automatic cleaning of dust adhering to the air filter 6, and is collected during cleaning of the air filter 6. The air nozzle 6 is automatically cleaned without impairing the basic performance of the air conditioner 1 by arranging the suction nozzle 9 so that it does not cause suction resistance without scattering dust in the room. It can be.
[Selection] Figure 1

Description

  The present invention relates to an air conditioner capable of automatically cleaning an air filter.

  FIG. 6 is a schematic perspective view showing an example of a conventional air conditioner. In the air conditioner 1, air is sucked in from the suction port 5 on the back side, passes through the air filter 6, the fans 3 a and b connected to the motor 4, and the heat exchanger 2, and is blown out from the blowout port 7 on the front side. The

  A conventional air conditioner that is installed in a ceiling such as in a top bag that sucks air from the back side, in a ground bag, or in a ceiling is installed on the windward side of the heat exchanger 2 and the casing of the air conditioner 1. An air filter 6 is provided to prevent dust from entering the inside, and the air filter 6 is configured to be detachable so that it can be cleaned by hand, such as sucking or washing the attached dust with a vacuum cleaner. Has been.

  An air filter with such a configuration not only requires frequent maintenance, but the air filter gradually clogs until maintenance is performed, and as a result, the amount of air passing through the heat exchanger is reduced. As a result, the air-conditioning capacity is reduced, leading to an increase in power consumption. In particular, air conditioners such as those installed in top bags, ground bags, and ceilings are installed in high places, making maintenance difficult and less likely to see them directly. It is in.

For this reason, in order to reduce the maintenance work of the air filter, there has been proposed an air filter cleaning device configured to rotate the air filter, drop the dust with a brush in order to drop the dust attached to the air filter, and collect the dust ( For example, see Patent Document 1).
Japanese Utility Model Publication No. 63-104913

  However, in the above prior art, the dust adhering to the air filter is scraped off with a brush and put into the tray, so that the problem of dust scattering in the air in the room and the need to dispose of the dust accumulated in the tray are necessary. There was a problem that there was no maintenance.

  An object of the present invention is to solve the above-described conventional problems and to provide an air conditioner capable of automatic cleaning that does not require maintenance of an air filter.

In order to solve the conventional problem, an air conditioner according to claim 1 is installed in a ceiling and has a substantially box-shaped casing as a whole, a heat exchanger accommodated in the casing, a fan and a motor. And a suction port formed in the housing for sucking in external air, an air filter on the windward side of the suction port, and also formed in the housing, and the sucked air is blown after temperature control by the heat exchanger. A slidable suction nozzle for sucking dust adhering to the air filter having a suction port facing the air filter, a drive mechanism for driving the suction nozzle, and the suction A suction / exhaust device that communicates with the nozzle and sucks and exhausts dust together with air, and communication means that communicates the suction / exhaust device and the suction nozzle are provided. As a result, automatic cleaning of dust adhering to the air filter can be configured with a simple structure, and dust collected during air filter cleaning is not scattered into the room, and the suction nozzle does not become a suction resistance. By being arranged, automatic cleaning of the air filter of the air conditioner installed in the ceiling can be realized without impairing the basic performance of the air conditioner.

  The air conditioner of the present invention enables automatic cleaning of dust adhering to the air filter with a simple structure and a small suction air volume, without dust collected during air filter cleaning being scattered in an indoor room, Automatic cleaning of the air filter can be realized with low noise without impairing the basic performance of the air conditioner.

  1st invention is installed in the ceiling, the box-shaped housing | casing as a whole, the heat exchanger accommodated in the said housing | casing, a fan and a motor, and the external air formed in the said housing | casing A suction port that includes a suction port, an air filter on the windward side of the suction port, and a blow-out port that is formed in the housing and blows out the sucked air after temperature regulation by the heat exchanger, and faces the air filter A slidable suction nozzle for sucking dust adhering to the air filter having a mouth, a drive mechanism for driving the suction nozzle, and a suction exhaust for sucking and exhausting dust together with air in communication with the suction nozzle By providing a communication device that communicates the suction exhaust device and the suction nozzle, it is possible to configure automatic cleaning of dust adhering to the air filter with a simple structure, and to collect dust during air filter cleaning. Dust in the room Without letting dispersed, by the suction nozzle is an arrangement that does not cause the suction resistance, without impairing the basic performance of the air conditioner can be realized an automatic cleaning of the air filter.

  According to a second aspect of the present invention, the suction nozzle includes a dust scraping pad for scraping dust adhering to the air filter, and the driving mechanism is wound between rollers disposed at both ends and the rollers. A belt-shaped belt and a driving source are provided, and the automatic cleaning of dust adhering to the air filter is simplified by moving the suction nozzle disposed on the belt by driving the roller and the belt with the driving source. It can be constructed with a simple structure, and can suck and exhaust dust while scraping off the air filter. Therefore, dust can be reliably removed even with a small air flow, and operation can be performed with low noise.

  According to a third aspect of the present invention, the dust scraping pad has a rectangular shape having a long side in a direction substantially perpendicular to the driving direction of the suction nozzle, so that the scraping area can be secured to the maximum, The attached dust can be surely scraped off.

  According to a fourth aspect of the present invention, the suction port of the suction nozzle has a rectangular shape having a long side in a direction substantially perpendicular to the drive direction of the suction nozzle, so that the suction area can be maximized, and the air filter The adhering dust can be reliably sucked.

  According to a fifth aspect of the present invention, since the suction / exhaust device is arranged in parallel to the outside of the suction port, pressure loss can be suppressed with a simple configuration, and dust can be reliably sucked in with a small amount of intake air. In addition, the operation sound can be reduced.

  According to a sixth aspect of the present invention, the suction exhaust apparatus includes an exhaust nozzle, and the exhaust nozzle extends from the same surface as one surface of the indoor unit in which an internal / external connection pipe that connects the indoor unit and the outdoor unit of the air conditioner extends. By extending it, it is possible to connect to a nozzle that discharges dust to the outside in the same space as the piping connection work of indoor units, so the work is simplified, there is no need to provide a new ceiling opening, and the interior characteristics are also improved To do.

7th invention stabilizes the drive of the said suction nozzle by providing the drop-off prevention apparatus which prevents the said suction nozzle from falling on the said belt. In addition, by adhering the dust scraping pad of the suction nozzle to the air filter, dust attached to the air filter can be surely scraped off.

  In an eighth aspect of the invention, the suction nozzle has a shape sandwiching both surfaces of the air filter, and has at least two suction ports facing the air filter, so that the dust scraping pad is attached to the air filter. Most of the adhering dust is scraped off and sucked in from the suction port on the dust scraping pad side, but part of the dust is filtered to the back side of the air filter and can be sucked in from the suction port on the back side of the air filter. .

  According to a ninth aspect of the invention, the dust scraping pad is a brush, and has a rectangular shape having a long side in a direction substantially perpendicular to the driving direction of the suction nozzle, so that the scraping area can be maximized. The dust adhering to the air filter can be surely scraped off.

  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 schematic perspective view of an air conditioner according to first and second embodiments of the present invention. In FIG. 1, the same components as those of the conventional air conditioner are denoted by the same reference numerals, and the description thereof is omitted. FIG. 2 is a plan view of the suction nozzle of the air conditioner according to Embodiment 1 of the present invention. FIG. 3 is a perspective view of the suction nozzle according to Embodiment 1 of the present invention.

  In FIG. 1, the air conditioner 1 installed in the top sack that sucks air from the back side, installed in the ground bag, installed in the ceiling, etc., dust enters the inside of the air conditioner 1 on the windward side of the heat exchanger 2. An air filter 6 is provided to prevent this, and dust adhering to the air filter 6 is removed by a suction nozzle 9 provided outside the suction port 5.

  The suction nozzle 9 is connected to the drive motor 16 as a drive source of the drive mechanism, the suction exhaust device 11 is connected to the suction nozzle 9 to suck and exhaust dust together with air, and the suction is a communication means between the suction exhaust device 11 and the suction nozzle 9. An exhaust hose 10 is provided. The suction nozzle 9 has a long side in a direction substantially perpendicular to the suction nozzle drive direction and a dust scraping pad 9a having a rectangular shape having a long side in a direction substantially perpendicular to the suction nozzle drive direction. A suction port 9b having a rectangular shape is provided to be movable in the left-right direction.

  The drive mechanism includes rollers 15a and 15b disposed at both ends, and a belt belt 14 wound between the rollers 15a and 15b. By driving the rollers 15a and 15b and the belt 14 with a drive motor 16, The suction nozzle 9 installed on the belt 14 is moved along the air filter 6.

  Details of the operation of the suction nozzle 9 configured as described above will be described. For example, after the operation of the air conditioner 1 is stopped, the suction / exhaust device 11 starts operating, and the suction nozzle 9 located at one end of the air filter 6 is moved in the direction of arrow A shown in FIG. Dust adhering to the front surface of the air filter 6 is sucked from the suction port 9b while being scraped off by the dust scraping pad 9a, and the dust passes through the suction / exhaust hose 10 and is sucked into the suction / exhaust device 11. The suction nozzle 9 hits the limit switch 13a, which is a dropout prevention device, and stops when it moves to the opposite one end. After that, if the drive motor 16 is rotated in the reverse direction, the suction nozzle 9 comes into contact with the limit switch 13b, which is the other drop prevention device, and stops and returns to the initial position. With the above operation, the entire surface of the air filter 6 can be automatically cleaned.

  Here, as shown in FIG. 1, by disposing the suction nozzle 9 outside the suction port 5, the ventilation resistance of the air passing through the heat exchanger 2 is eliminated, and the basic performance of the air conditioner 1 is not impaired. Automatic cleaning of the air filter 6 can be realized.

  Here, by arranging the suction / exhaust device 11 on the outside of the suction port 5, maintenance of the suction nozzle 9 is facilitated, and the degree of freedom of the suction / exhaust hose 10 is also increased.

  Also, when discharging dust adhering to the air filter 6 to the outside, the extension exhaust nozzle 12 connected to the air conditioner 1 is operated in the same space as the pipe portion 8 connecting the indoor unit and the outdoor unit. The connection location of the extended exhaust nozzle 12 is provided on the surface.

  Here, the holding rails 13c and 13d prevent the suction nozzle 9 from falling off to the back side and stabilize the driving of the suction nozzle 9. In addition, by adhering the dust scraping pad 9a of the suction nozzle 9 to the air filter 6, the dust attached to the air filter 6 can be surely scraped off.

  Further, if the dust scraping pad 9a is formed with a brush, it is possible to scrape more dust.

(Embodiment 2)
FIG. 4 is a plan view of the suction nozzle of the air conditioner according to Embodiment 2 of the present invention. FIG. 5 is a perspective view of a suction nozzle according to Embodiment 2 of the present invention.

  4 and 5, the suction nozzle 9 has a shape sandwiching both surfaces of the air filter 6, and a suction port 9b having a rectangular shape having a long side in a direction substantially perpendicular to the driving direction of the suction nozzle 9. 9c. As a result, the dust scraping pad 9a scrapes most of the dust adhering to the air filter 6 and sucks it from the suction port 9b, but part of the dust is filtered to the back side of the air filter 6 and sucked from the suction port 9c. Can do. As described above, in the present embodiment, dust attached to the air filter 6 can be automatically sucked from both sides of the air filter 6 and cleaned, and the dust attached to the air filter 6 can be more reliably collected. Can be scraped off.

  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 therefore collects dust such as an air cleaner. It can also be applied to applications such as equipment equipped with dust filter.

1 is a schematic perspective view of an air conditioner according to Embodiment 1 of the present invention. The top view of the suction nozzle of the air conditioner in Embodiment 1 of this invention The perspective view of the suction nozzle in Embodiment 1 of this invention The top view of the suction nozzle of the air conditioner in Embodiment 2 of this invention The perspective view of the suction nozzle in Embodiment 2 of this invention Schematic perspective view of a conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Heat exchanger 3a, 3b Fan 4 Motor 5 Suction port 6 Air filter 7 Outlet 8a, 8b Inside / outside connection piping 9 Suction nozzle 9a Dust scraping pad 9b, 9c Suction port 10 Suction exhaust hose 11 Suction exhaust device 12 Exhaust nozzle 13a, 13b Limit switch 13c, 13d Holding rail 14 Belt 15a, 15b Roller 16 Drive motor

Claims (9)

A box-shaped housing installed in the ceiling, a heat exchanger housed in the housing, a fan and a motor, a suction port for sucking outside air formed in the housing, and a suction port It has an air filter on the windward side and a blowout port formed in the housing for blowing the sucked air after temperature adjustment by the heat exchanger, and has an intake port facing the air filter and attached to the air filter A slidable suction nozzle for sucking dust, a drive mechanism for driving the suction nozzle, a suction exhaust device communicating with the suction nozzle for sucking and exhausting dust together with air, the suction exhaust device, and the An air conditioner provided with communication means for communicating with a suction nozzle. The suction nozzle is provided with a dust scraping pad for scraping dust adhering to the air filter, and the driving mechanism includes rollers disposed at both ends, a belt belt wound between the rollers, and a driving source. The air conditioner according to claim 1, wherein the suction nozzle disposed on the belt is moved by driving the roller and the belt with the driving source. The air conditioner according to claim 1 or 2, wherein the dust scraping pad has a rectangular shape having a long side in a direction substantially perpendicular to a driving direction of the suction nozzle. The air conditioner according to any one of claims 1 to 3, wherein the suction port of the suction nozzle has a rectangular shape having a long side in a direction substantially perpendicular to the driving direction of the suction nozzle. The air conditioner according to any one of claims 1 to 4, wherein the suction / exhaust device is juxtaposed outside the suction port. The suction exhaust device includes an exhaust nozzle, and the exhaust nozzle extends from the same surface as one surface of the indoor unit in which an internal / external connection pipe that connects the indoor unit and the outdoor unit of the air conditioner extends. The air conditioner according to any one of claims 1 to 5. The air conditioner according to any one of claims 1 to 6, further comprising a drop-off prevention device that prevents the suction nozzle from dropping from the belt. The air conditioner according to any one of claims 1 to 7, wherein the suction nozzle has a shape sandwiching both surfaces of the air filter and has at least two suction ports facing the air filter. . The air conditioner according to claim 1, wherein the dust scraping pad is a brush.