JP4321113B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner including an air filter at an air suction port.
[0002]
[Prior art]
In the conventional air conditioner, as shown in FIG. 6, the air is matured by the mature exchanger 9, but the air filter 5 is used to prevent dust contained in the sucked air from entering the air conditioner. The air filter 5 is provided so that it can be attached and detached for the convenience of periodically sweeping away the adhering dust.
[0003]
On the other hand, cleaning of the air filter as an air filter device easy air conditioner, are also known.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 63-1111917 [0005]
[Problems to be solved by the invention]
However, known air filters require regular maintenance in which the air filter is removed from the air conditioner according to the frequency of use of the air conditioner, and dust adhering thereto is cleaned with water or a vacuum cleaner. In particular, the type embedded in the ceiling requires a lot of labor and labor. Further, when maintenance is not performed regularly, there is a problem that dust accumulates on the air filter and the ventilation resistance of the intake air is increased, so that the performance of the air conditioner is reduced and the power consumption is increased.
[0006]
In addition, when air is circulated through the suction nozzle and the suction nozzle becomes longer, the amount of air circulated varies depending on the location, and the dust suction effect varies depending on the filter position.
[0007]
[Means for Solving the Problems]
The invention described in claim 1 is characterized in that a suction nozzle and a plurality of suction port air flow paths are integrally formed.
[0008]
According to the present invention, when the length of the suction nozzle is increased, the amount of air 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 channels of sucked air are provided. Thus, the air suction amount can be made uniform regardless of the location of the suction port .
[0009]
Further, according to the present invention, by providing a plurality of outlets, it is possible to reduce resistance during suction.
[0010]
Further, according to the present invention, the air suction amount can be made uniform regardless of the length of the suction nozzle. However, if the suction nozzle becomes longer, the air circulation amount of each air flow path becomes insufficient and the suction amount is reduced. Although it is necessary to increase the suction capacity of the apparatus, the suction power can be secured without increasing the capacity of the suction apparatus by sequentially opening and closing the suction port.
[0011]
Further, according to the present invention, the opening and closing of the suction port can be configured very simply and compactly.
[0012]
Further, 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.
[0013]
In addition, according to the present invention, the speed of the rotating air filter increases from the center of the air filter toward the outer periphery. Therefore, if the suction ports have the same size, the air filter absorbs at the outer periphery. The area becomes larger, and the suction ability becomes relatively smaller than that of the central part. In order to prevent this, the length of the suction port corresponding to the length of the air filter in the radial direction can be set to be the same suction area at any suction port by shortening the length closer to the outer periphery of the air filter. I can do it.
[0014]
The invention according to claim 2 is characterized in that, in the invention according to claim 1 , the outlet of the suction nozzle can be sequentially opened and closed by arranging a cylinder having a slit on the side wall at the outlet of the suction nozzle and rotating the cylinder. And
[0015]
DETAILED DESCRIPTION OF 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.
[0016]
1 is a cross-sectional view of a ceiling-embedded air conditioner 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 (enlarged view of I in FIG. 1). 4 and 5 are sectional views taken along line AA in FIG.
[0017]
The air passes through the suction grille 6, the air filter 5, and the air guider 4 provided in the front grille 1 by the fan 10 disposed inside the air conditioner, is matured and exchanged by the mature exchanger 9, and blown out to the outlet 17. The 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.
[0018]
The disk-shaped air filter 5 is rotatably mounted around the center of the air filter 5 and is rotated by a motor 15.
[0019]
The suction nozzle 12 has suction portions 12d, 12e, and 12f and outlet portions 12g, 12h, and 12i, which are communicated with each other through air flow passages 12a, 12b, and 12c, and are rotatably fitted in the suction unit 13. (Although divided and displayed in FIG. 2, the portions of the suction portions 12d, 12e, and 12f are integrally formed with the portions of the air flow paths 12a, 12b, and 12c). The suction nozzle 12 has a length substantially equal to the radius of the air filter 5, the tip is at the approximate center of the air filter 5, and the other end is located at the outer periphery of the air filter 5.
[0020]
The suction unit 13 includes a suction fan and a unit (not shown) for collecting the sucked dust. By operating the suction fan, the dust attached to the air filter 5 is removed from the suction nozzle 12. Aspirated by the suction portions 12d, 12e, and 12f, the flow path 12a, 12b, and 12c, the outlet portions 12g, 12h, and the 12i suction nozzle 12 and the cylindrical connection portion 12j configured to connect the suction unit 13 to the suction unit 13 Passes through the connection port 12k and reaches the dust collecting unit.
[0021]
A cylinder 18 having slits 18a, 18b, 18c, and 18d on the side wall is disposed in the cylindrical connection portion 12j of the suction nozzle. A gear 19 is fixed to the cylindrical shape 18 with a screw 20, and the position of the slit 18 a provided in the cylinder 18 is moved by a constant angle by rotating the gear 19 by a projection 5 a provided on the air filter 5. I can do it.
[0022]
With the above configuration, the air flow is as follows. This will be described with reference to FIGS.
[0023]
When the cylindrical slit 18a of the opening / closing device is in a state of being coincident with the outlet portion 12g of the suction nozzle 12, the suction unit 13 is operated so that the air sucks the dust adhering to the air filter 5, and the suction nozzle 12 The suction port 12d is sucked through the flow path 12a, reaches the outlet 12g, sequentially passes through the slit 18a, the connecting portion 12j, and the opening 12k, reaches the suction unit 13, and adheres to the air filter 5 together with the air. Dust can be collected in the dust collection unit.
[0024]
At this time, the outlet portions 12h and 12j of the suction nozzle are closed by the cylinder 18, and air is not sucked from the suction ports 12e and 12f. Next, the air filter 5 rotates-the projection 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, closes the outlet 12g, Open the outlet 12h. As a result, air is sucked from the suction part 12e, and dust attached to the air filter 5 in front of the suction part 12e is sucked.
[0025]
Further, when the air filter 5 rotates once, the slit 18a opens the outlet portion 12i, and when further rotated, the slit 18d opens the outlet portion 12g, and sequentially opens and closes the outlets 12h and 12i. As a result, the suction port is sequentially switched to 12d, 12e, and 12f, and dust attached to the air filter 5 in front of the suction port is sequentially sucked.
[0026]
The lengths of the suction ports 12d, 12e, and 12f in the longitudinal direction have a relationship of 12d <12e <12f, and the suction port closer to the outer periphery of the air filter 5 is set smaller. If the length of the suction port in the longitudinal direction is the same, the suction capacity is the same, but the air filter 5 is disk-shaped and rotates, so that the peripheral speed of the air filter 5 increases at the outer peripheral portion. The area of the air filter 5 sucked by the suction ports 12d, 12e, and 12f is larger in the suction port closer to the outer periphery. Therefore, if there is no difference in the suction ability between the central portion and the outer peripheral portion, suction unevenness occurs and dust is generated. As the dust collection efficiency approaches the outer periphery, it becomes worse.
[0027]
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 tried to be the same as much as possible.
[0028]
【The invention's effect】
As described above, by providing a plurality of suction ports of the suction nozzle in the air conditioner of the present invention. Dust adhering to the air filter can be easily removed with a simple configuration, and can contribute to preventing the performance deterioration 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 invention. FIG. 3 is a suction nozzle of an air conditioner showing an embodiment of the invention. Sectional view (enlarged view of FIG. 1I)
4 is a cross-sectional view of an air conditioner showing an embodiment of the present invention (cross-sectional view of FIG. 3-A).
FIG. 5 is a cross-sectional view of an air conditioner showing an 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.
DESCRIPTION OF SYMBOLS 1 Front grille 2 Wind direction change blade 3 Drain pan 4 Air guider 5 Air filter 5a Protrusion 6 Suction grill 7 Case 8 Heat insulating material 9 Mature exchanger 10 Fan 11 Fan motor 12 Suction nozzle 12a Channel 12b Channel 12c Channel 12d Suction port 12e Suction port 12f Suction port 12g Outlet part 12h Outlet part 12i Outlet part 12j Connection part 12k Outlet 13 Suction unit 14 Gear 15 Motor 16 Screw 17 Outlet 18 Cylinder 18a Slit 18b Slit 18C Slit 18d Slit 19 Gear 20 Screw

Claims (2)

An air filter is provided between a front panel of a housing that houses an indoor heat exchanger and an indoor blower, and a suction grill provided on the front panel and a heat exchanger. An air filter drive means for rotating the air filter is provided with a rotation support shaft disposed at a central position as a rotation axis, and the front surface of the air filter has a length corresponding to the radius of the air filter. There is a suction part with the tip at the approximate center of the air filter and the other end located on the outer periphery of the air filter. The suction nozzle sucks dust adhering to the air filter, and is connected to the suction nozzle to collect dust. In an 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 to the outlet are integrated. Form, comprising a closing device for sequentially opening and closing one or more of said outlet portion, said closing device comprises a gear which is integrally fixed to the cylindrical slit of the switchgear, projections air filter provided in the air filter The air flow channel that meshes with the gear each time one rotation rotates and opens and closes the opening and closing device sequentially by rotating the gear by one tooth of the gear. To the outside of the air filter, the air conditioner is connected to the suction port arranged to be shorter in length.   As a means for opening and closing the outlet part of the suction nozzle, it is cylindrical and has a slit on the side wall of the cylinder, and by rotating the cylinder, the outlet part of the suction nozzle is made to match the slit part and the outlet part of the suction nozzle. The air conditioner according to claim 1, further comprising an opening / closing device that sequentially opens or closes one or more.

Images