JPH102604A - Air conditioner with no maintenance filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To hold an air filter provided in an air conditioner unit in a cleaned state and to eliminate necessity of a cleaning operation by providing a means for moving to circulate the filter at a predetermined amount each time an air conditioner is operated for a predetermined time, and a means for automatically cleaning the filter. SOLUTION: An operating lapse time of the air conditioner is integrated by a controller. When its integrated value becomes a predetermined set value, a rotation start signal is output from the controller to a motor 15, and the motor 15 is rotated. Then, a drive gear 11 is rotated to move an air filter 10. Moving gears 12, 13, 14 also rotate as the filter 10 moves. Simultaneously, a gear 19 fixed to the gear 11 is rotated. A gear 20 fixed to a shaft of a cleaning brush 16 is rotated to rotate the brush 16, thereby cleaning contaminant of the filter. Simultaneously, the controller outputs a rotation signal to a dust collecting motor 18 to rotate a fan 17, thereby collecting dust removed by the brush 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a no-maintenance filter capable of automatically cleaning an air filter of the air conditioner.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show an air conditioner having an ordinary air filter generally used in the prior art. FIG. 7 is a longitudinal sectional view, and FIG. 8 is a front view taken along line AA. FIG. In the figure, 1 is a ceiling slab, 1a is a ceiling board, 2 is a suspension bolt, which fixes the air conditioner unit 3 to the ceiling via an L-shaped bracket 2a. Air conditioner unit 3
Is mounted between the ceiling slab 1 and the ceiling board 1a. Reference numeral 4 denotes a motor provided at the center of the air conditioner unit 3, and reference numeral 5 denotes a fan rotated by the motor 4. Reference numeral 6 denotes a suction grille, which also serves as a holding member for the filter 7. 8 is an air heat exchanger provided symmetrically on both sides of the fan 5.

In the conventional air conditioner having the above-described structure, when the fan 5 is rotated by the motor 4, the air in the room to be air-conditioned is sucked into the suction grill 6 and contained in the air when passing through the filter 7. Dust is removed. The air from which dust has been removed by the filter 7 is supplied to the air heat exchanger 8.
And is blown out from the outlet 9 into a room to be air-conditioned.

[0004]

In the conventional air conditioner having the above-mentioned structure, as the air conditioner is used, dust adheres to the filter. If a large amount of dust adheres to the filter, the amount of air passing through the filter decreases, and the amount of air passing through the air heat exchanger also decreases, which is a major factor in reducing the performance of the air conditioner. Therefore, it is necessary to periodically remove the filter from the air conditioner unit and clean it. However, since the air conditioner is mounted at a high place, it is difficult to remove and install the air conditioner, it takes time and effort, and there is a problem that the air conditioner may fall during the work.

A first object of the present invention is to provide an air conditioner having a no-maintenance filter that can automatically clean an air filter while the air filter is attached to the air conditioner, and keeps the air filter constantly cleaned to eliminate the need for cleaning. It is to provide.

A second object is that it is not necessary to periodically remove the air filter to clean it, and it is sufficient to remove the dust from the air conditioner unit when the dust collecting box becomes full, and to discard the dust. It is an object of the present invention to provide an air conditioner having a no-maintenance filter which can be reduced.

[0007]

An air conditioner having a no-maintenance filter according to the first and second aspects of the present invention is continuously formed into an endless structure and disposed so as to surround a main part of the air conditioner. An air filter, air filter moving means for circulating the air filter by a predetermined amount every time the air conditioner is operated for a predetermined time, and automatic cleaning means provided in the air conditioner unit for automatically cleaning the air filter. Thus, the air filter can be automatically cleaned while being attached to the air conditioner, and the air filter can be always kept in a cleaned state, and the cleaning work can be eliminated.

In addition, by providing track holes for moving the air filter at both ends of the air filter, the air filter can be moved more reliably.

An air conditioner having a no-maintenance filter according to the third and fourth aspects of the present invention rotates an air filter automatic cleaning means provided in an air conditioner unit simultaneously with the circulating movement of the air filter. By using a cleaning brush for cleaning the air filter and the dust collecting means, the air filter is always kept in a clean state even if the air filter is not periodically removed and cleaned, and dust is collected by the dust collecting means. Dust scattering can be avoided.

Further, the dust collecting means is a small dust collecting device for forcibly sucking the dust removed from the air filter and collecting the dust at a predetermined position, so that the dust collecting box of the small dust collecting device becomes full. At this point, it is sufficient to remove the dust from the air conditioner unit and discard the dust, so that it is clean and the amount of work can be greatly reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 to 3 show a first embodiment of the present invention.
FIG. 1 is a longitudinal sectional view, FIG. 2 is a front view as viewed from line AA, and FIG. 3 is a perspective view. In the figure, 1 is a ceiling slab, 1a is a ceiling board, 2 is a suspension bolt, which fixes the air conditioner unit 3 to the ceiling via an L-shaped bracket 2a. The air conditioner unit 3 includes a ceiling slab 1 and a ceiling board 1a.
It is installed between. Reference numeral 4 denotes a motor provided at the center of the air conditioner unit 3, and reference numeral 5 denotes a fan rotated by the motor 4. Reference numeral 6 denotes a suction grill. 8 is an air heat exchanger provided symmetrically on both sides of the fan 5, and 9 is an air outlet.

Reference numeral 10 denotes an air filter formed by continuously forming a sheet-like filter member into an endless structure, and is arranged so as to surround the main part 3A of the air conditioner including the motor 4 and the fan 5. ing. As shown in FIG. 6, the air filter 10 is provided with track hole portions 10a formed at both ends by forming a large number of holes at equal intervals. The air filter 10 is supported by two driving gears 11, 11 and six moving gears 12, 12, 13, 13, 14, 14 having tooth shapes to be engaged with holes of the track hole portion 10a so as to be able to circulate. ing. Reference numeral 15 denotes a motor for driving the drive gear 11 to rotate. These mechanisms operate the air filter 1 each time the air conditioner is operated for a predetermined time.
This constitutes an air filter moving means for circulating 0 for a predetermined time.

Reference numeral 16 is provided in the air conditioner unit 3,
A cleaning brush as an automatic cleaning means for automatically cleaning the air filter 10. Below the cleaning brush 16, an air filter 10 is provided by the cleaning brush 16.
A fan 17 for collecting dust removed from the hopper and a motor 18 for rotating the fan 17 are provided.

FIG. 4 is a view showing a mechanism for rotating the cleaning brush 16, and a motor 15 for rotating the driving gear 11.
Brush 1 via the gears 19 and 20
6 and rotate the cleaning brush 16.

In the air conditioner configured as described above,
The operation elapsed time of the air conditioner is integrated by a controller (not shown), and when the integrated value reaches a predetermined set value, a rotation start signal is output from the controller to the motor 15 and the motor 15 rotates. Then, the drive gear 11 rotates, and the air filter 10
To move. Moving gears 12, 12, 13, 13, 1
4 and 14 also rotate with the movement of the air filter 10. At the same time, the gear 19 fixed to the driving gear 11 rotates, and the cleaning brush 16 is rotated by rotating the gear 20 fixed to the shaft of the cleaning brush 16, thereby cleaning the air filter 10.

At the same time, a rotation signal is output from the controller to the dust collection motor 18, and as shown in FIG.
The dust removed by the cleaning brush 16 is sucked and collected by rotating the fan 17 fixed to the fan. The time setting of the signal output from the controller can be arbitrarily changed. When a predetermined time has elapsed, the output of the signal is stopped, and the movement of the air filter 10 and the rotation of the cleaning brush 16 are stopped.

The collected dust is collected in a dust collection box (dust pack) 21, and when the amount of collected dust reaches a predetermined amount, a signal is output to a controller by a sensor (not shown). Then, the controller stops the cleaning operation and displays the fact on an external display device. The dust collected in the dust box 21 is removed from the unit and discarded.

As described above, the air filter 10 is automatically cleaned while being attached to the air conditioner, and is always kept in a cleaned state.

[0019]

Since the present invention is configured as described above, it has the following effects.

1) The air filter is attached to the air conditioner by a structure in which the air filter has a continuous endless structure, is movable by a motor, and has a means for automatically cleaning the air filter provided in the air conditioner unit. The air filter can be automatically cleaned as it is, and the air filter is always kept in a cleaned state, so that the cleaning work can be eliminated.

2) By providing track holes for moving the air filter at both ends of the air filter, the air filter can be moved more reliably.

3) The air filter provided in the air conditioner unit is constituted by a rotating cleaning brush and dust collecting means for automatically cleaning the air filter, so that the air filter can be removed without cleaning by periodically removing the air filter. Since the dust is always kept in a cleaner state and the dust is collected by the dust collecting means, scattering of the dust can be avoided.

4) Since the dust collecting means is a small dust collecting device for forcibly sucking the dust removed from the air filter and collecting the dust at a predetermined location, the dust collecting box of the small dust collecting device becomes full. At this point, the dust may be removed from the air conditioner unit and the dust may be discarded, so that it is clean and the amount of work can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an air conditioner having a no maintenance filter according to Embodiment 1 of the present invention.

FIG. 2 is a front view seen from line AA in FIG. 1;

FIG. 3 is a perspective view of the device shown in FIG.

FIG. 4 is a diagram illustrating a drive mechanism of a cleaning brush according to the embodiment.

FIG. 5 is a perspective view showing the dust collecting mechanism of FIG. 3;

FIG. 6 is an explanatory diagram of a main part of the air filter of FIG.

FIG. 7 is a longitudinal sectional view showing an example of a conventional air conditioner.

FIG. 8 is a sectional view taken along line AA of FIG. 7;

[Explanation of symbols]

1 ceiling slab, 1a ceiling board, 2 suspension bolts,
3 air conditioner unit, 3A main part of air conditioner, 4 motor, 5 fan, 6 suction grille, 8 air heat exchanger,
9 air outlet, 10 air filter, 11 drive gear, 1
2,13,14 moving gear, 15 motor, 16 cleaning brush, 17 fan, 18 dust collection motor, 19,2
0 gears, 21 dust box.

Claims (4)

[Claims] 1. An air filter which is continuously formed in an endless structure and is disposed so as to surround a main part of an air conditioner, and an air filter movement which circulates the air filter by a predetermined amount every time the air conditioner is operated for a predetermined time. And an automatic cleaning means provided in the air conditioner unit for automatically cleaning the air filter. 2. An air conditioner having a no maintenance filter according to claim 1, wherein track holes for moving the air filter are provided at both ends of the air filter. 3. The air filter automatic cleaning means comprises a cleaning brush which rotates simultaneously with the circulating movement of the air filter and cleans the air filter, and a dust collecting means. An air conditioner having the no-maintenance filter according to the above. 4. The no-maintenance filter according to claim 3, wherein the dust collecting means comprises a small dust collecting device for forcibly sucking the dust removed from the air filter and collecting the dust at a predetermined location. Air conditioner with.