JP2004347251A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner facilitating the cleaning of an air filter by solving the problems in a conventional air conditioner that the air filter provided to prevent the intrusion of the duct contained in air must be frequently cleaned, and much time and load are required for cleaning. <P>SOLUTION: This air conditioner is provided with an air filter unit comprising the air filter formed in a disk shape, a drive unit for rotating the air filter around the center of the disk, and a suction nozzle arranged on the front surface of the filter to suck the dust adhered to the air filter. According to this, the cleaning work of the air filter can be performed easily. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air conditioner having an air filter at an air intake port.
[0002]
[Prior art]
In the conventional air conditioner, as shown in FIG. 6, the air is ripened by a ripening exchanger 9, and the air filter 5 is provided to prevent dust contained in the sucked air from entering the inside of the air conditioner. The air filter 5 is provided so as to be detachable for the convenience of periodically wiping the attached dust.
[0003]
On the other hand, it is also known as an air filter device of an air conditioner in which an air filter can be easily cleaned.
[0004]
[Patent Document 1]
JP-A-63-111917 [0005]
[Problems to be solved by the invention]
However, the air filter of the known technique requires periodic maintenance such that the air filter is removed from the air conditioner in accordance with the frequency of use of the air conditioner, and the attached dust is cleaned with water or a vacuum cleaner. Particularly, the type embedded in the ceiling requires a great deal of labor and labor. In addition, when maintenance is not performed regularly, dust accumulates on the air filter and increases the ventilation resistance of the intake air, so that there is a problem that the performance of the air conditioner is reduced and the power consumption of the air conditioner is increased.
[0006]
In addition, when the suction nozzle is long and the air is circulated through the suction nozzle, the amount of air circulating varies from place to place, and the dust suction effect varies depending on the filter position.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is characterized in that a suction nozzle and a plurality of suction air passages are formed integrally.
[0008]
According to the present invention, when the length of the suction nozzle becomes longer, the amount of air to be sucked is different between the front end portion and the front side of the nozzle, but a plurality of suction ports are provided and a plurality of flow paths of the sucked air are provided. Thus, the amount of air suction can be made uniform regardless of the location of the suction port.
[0009]
According to a second aspect of the present invention, in the first aspect of the invention, a suction nozzle, a plurality of suction ports, and the same number of outlets as the suction ports are provided, and an air flow path connecting the suction ports and the outlets is integrally formed. It is characterized by.
[0010]
According to the present invention, by providing a plurality of outlets, it is possible to reduce resistance during suction.
[0011]
According to a third aspect of the present invention, in the second aspect, one or a plurality of outlets of the plurality of suction nozzles are sequentially opened and closed.
[0012]
According to this invention, according to the first aspect of the present invention, the amount of air suction can be made uniform regardless of the length of the suction nozzle. However, it is necessary to increase the suction capacity of the suction device. However, by sequentially opening and closing the suction ports, the suction force can be secured without increasing the capacity of the suction device.
[0013]
According to a fourth aspect of the present invention, in the third aspect, a cylinder having a slit on a side wall is disposed at an outlet of the suction nozzle, and the outlet of the suction nozzle can be sequentially opened and closed by rotating the cylinder. And
[0014]
According to the present invention, the opening and closing of the suction port can be made very simple and compact.
[0015]
According to a fifth aspect of the present invention, in the invention of the fourth aspect, a gear is formed on the cylinder and the body as a rotating means of the cylindrical opening / closing device at the outlet of the suction nozzle, and the air filter is formed by a projection provided on the air filter. Each time it rotates, the cylindrical gear is rotated by a certain angle, and the outlet of the suction nozzle is opened and closed sequentially.
[0016]
According to the present invention, a new drive motor for rotating the cylinder is not required, and a very simple and compact configuration can be achieved.
[0017]
According to a sixth aspect of the present invention, in the first aspect of the invention, the size of the suction port of the plurality of suction nozzles is changed, and the size of the air filter is changed from the suction port at the tip end of the suction nozzle. One that is closer to the outer periphery is smaller.
[0018]
According to the present invention, since the peripheral speed of the rotating air filter increases from the center of the air filter toward the outer periphery, if the size of the suction port is the same, the area of the air filter to be absorbed at the outer periphery is reduced. The suction capacity becomes relatively smaller than that of the central part. In order to prevent this, the length of the suction port corresponding to the radial length of the air filter is shortened closer to the outer periphery of the air filter, so that the suction area can be set to be the same at any of the suction ports. I can do it.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment in which three air flow paths of the suction nozzle of the present invention are provided will be described with reference to the drawings.
[0020]
FIG. 1 is a cross-sectional view of an air conditioner embedded in a ceiling according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a suction nozzle, and FIG. 3 is a cross-sectional view of a suction nozzle portion (an enlarged view of I in FIG. 1). 4, 4, and 5 are cross-sectional views taken along the line A-A in FIG. 3.
[0021]
The air passes through a suction grille 6, an air filter 5, and an air guider 4 provided on the front grille 1 by a fan 10 disposed inside the air conditioner, is ripened by a ripening exchanger 9, and is blown out to an outlet 17. You. During this time, the dust mixed in the air adheres to the air filter 5 and does not adhere to the inside of the air conditioner.
[0022]
The disc-shaped air filter 5 is rotatably mounted around the center of the air filter 5 and has a structure rotated by a motor 15.
[0023]
The suction nozzle 12 has suction portions 12d, 12e, and 12f and outlet portions 12g, 12h, and 12i. The suction nozzles 12 communicate with air passages 12a, 12b, and 12c, respectively, and are rotatably fitted into the suction unit 13. (Although it is divided and shown in FIG. 2, the suction portions 12d, 12e, and 12f are integrally formed with the air flow passages 12a, 12b, and 12c by joining). The suction nozzle 12 has a length substantially equal to the radius of the air filter 5, and has a tip located substantially at the center of the air filter 5 and the other end located at the outer periphery of the air filter 5.
[0024]
The suction unit 13 is provided with a suction fan and a unit (not shown) for collecting the sucked dust. By operating the suction fan, dust adhering to the air filter 5 is removed by the suction nozzle 12. The suction is performed by the suction units 12d, 12e, and 12f, and the flow passages 12a, 12b, and 12c, and the outlets 12g, 12h, and 12i. It passes through the connection port 12k and reaches the dust collection unit.
[0025]
A cylinder 18 having slits 18a, 18b, 18c, and 18d on the side wall is arranged in the cylindrical connection portion 12j of the suction nozzle. A gear 19 is fixed to the cylindrical shape 18 by a screw 20. The position of the slit 18a provided in the cylinder 18 is moved by a fixed angle by rotating the gear 19 by a projection 5a provided on the air filter 5. Can be done.
[0026]
With the above configuration, the flow of air is as follows. This will be described with reference to FIGS.
[0027]
By operating the suction unit 13 when the cylindrical slit 18a of the opening and closing device is aligned with the outlet 12g of the suction nozzle 12, the air sucks dust adhering to the air filter 5, and the suction nozzle 12 Suctioned through the suction port 12d, passes through the flow path 12a, reaches the outlet 12g, sequentially passes through the slit 18a, the connection part 12j, and the opening 12k, reaches the suction unit 13, and adheres to the air filter 5 together with air. Dust can be collected in the dust collection unit.
[0028]
At this time, the outlets 12h and 12j of the suction nozzle are closed by the cylinder 18, and no air is sucked from the suction ports 12e and 12f. Next, the air filter 5 rotates, the protrusion 5a of the air filter 5 rotates the gear 19, the position of the slit 18a of the cylinder 18 moves from the position of FIG. 4 to the position of FIG. 5, and closes the outlet portion 12g. Open the outlet 12h. As a result, air is sucked in from the suction unit 12e, and dust attached to the air filter 5 in front of the suction unit 12e is sucked.
[0029]
When the air filter 5 further rotates once, the slit 18a opens the outlet 12i, and when the air filter 5 further rotates, the slit 18d opens the outlet 12g, and sequentially opens and closes the outlets 12h and 12i. As a result, the suction ports are sequentially switched to 12d, 12e, and 12f, and dust attached to the air filter 5 in front of the suction ports is sequentially sucked.
[0030]
The longitudinal lengths of the suction ports 12d, 12e, and 12f are in a relationship of 12d <12e <12f, and the suction port closer to the outer periphery of the air filter 5 is set smaller. This is because if the length of the suction port in the longitudinal direction is the same, the suction capacity is the same, but the peripheral speed of the air filter 5 increases at the outer peripheral portion due to the disk-shaped and rotating air filter 5. Since the area of the air filter 5 sucked by the suction ports 12d, 12e, and 12f is larger in the suction port near the outer circumference, if there is no difference in suction capacity between the center portion and the outer circumference, suction unevenness occurs and dust is generated. The dust collection efficiency gets worse as it gets closer to the outer circumference.
[0031]
In order to prevent this, the length of the suction port in the longitudinal direction is shortened toward the outer periphery, and the area for collecting dust is made as uniform as possible.
[0032]
【The invention's effect】
As described above, in the air conditioner of the present invention, by providing a plurality of suction ports of the suction nozzle. With a simple configuration, dust adhering to the air filter can be easily removed, and it can also contribute to preventing performance degradation of the air conditioner.
[Brief description of the drawings]
FIG. 1 is a sectional view of an air conditioner showing an embodiment of the present invention. FIG. 2 is an exploded perspective view of a suction nozzle showing an embodiment of the present invention. FIG. 3 is a suction nozzle of an air conditioner showing an embodiment of the present invention. Sectional view (enlarged view of FIG. 11I)
FIG. 4 is a cross-sectional view of the air conditioner showing the embodiment of the present invention (cross-sectional view of FIG. 3-A).
FIG. 5 is a cross-sectional view of the air conditioner showing the embodiment of the present invention (cross-sectional view of FIG. 3-A).
FIG. 6 is a cross-sectional view of an air conditioner showing a conventional example.
REFERENCE SIGNS LIST 1 front grill 2 wind direction changing blade 3 drain pan 4 air guider 5 air filter 5 a projection 6 suction grille 7 housing 8 heat insulator 9 mature exchanger 10 fan 11 fan motor 12 suction nozzle 12 a flow path 12 b flow path 12 c flow path 12 d suction port 12 e Suction port 12f Suction port 12g Outlet 12h Outlet 12i Outlet 12j Connection 12k Outlet 13 Suction unit 14 Gear 15 Motor 16 Screw 17 Outlet 18 Cylindrical 18a Slit 18b Slit 18C Slit 18d Slit 19 Gear 20 Screw

Claims (6)

A front panel of a housing for accommodating the indoor mature exchanger and the indoor blower, and an air filter provided between a suction grill provided on the front panel and the mature exchanger, and forming the air filter into a disk shape; Air filter driving means for rotating the air filter with a rotation support shaft disposed at a center position as a rotation axis, a front surface of the air filter having a length corresponding to a radius of the air filter. The air filter has a suction portion having a tip located at substantially the center of the air filter and the other end located on the outer periphery of the air filter, and a suction nozzle for sucking dust adhering to the air filter; and In the air conditioner provided with a suction device having a collecting function, the suction nozzle, a plurality of suction ports, and an air flow path from the suction port are integrally formed. Air conditioner, characterized in that the. The air conditioner according to claim 1, wherein the same number of outlets as the suction ports are provided, and an air flow path connecting the suction port and the outlet is formed integrally. The air conditioner according to claim 2, further comprising an opening / closing device located at a position facing the outlets of the plurality of suction nozzles and sequentially opening or closing one or more of the outlets of the plurality of nozzles. As a means for opening and closing the outlet part of the suction nozzle, the cylindrical part has a slit on the side wall of the cylinder, and the cylinder rotates to match the slit and the outlet part of the suction nozzle. The air conditioner according to claim 3, further comprising an opening / closing device for sequentially opening and closing one or more of the air conditioners. As means for rotating the cylinder, a gear is provided integrally with the cylinder, and the projection provided on the air filter is configured to rotate the gear of the cylinder by a constant angle every time the air filter makes one rotation. The air conditioner according to claim 4, wherein The length of the suction port of the plurality of suction nozzles corresponding to the radial direction of the disc-shaped air filter is shorter than the suction port closer to the center of the air filter, the suction port farther from the center. The air conditioner according to claim 1, wherein:

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