JP2004354011A - Ceiling-buried air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling-buried air conditioner facilitating the attachment/detachment work of a filter in cleaning, replacement or the like of the filter. <P>SOLUTION: This ceiling-buried air conditioner comprises a grill frame 3 having an outlet port 6 and a suction port 5 provided at the lower end of a body 2 to be buried in a ceiling, a suction grill 4 provided on the suction port of the grill frame 3, a pre-filter 8 for purifying sucked air detachably set on the suction grill 4, and a lifting device 12 capable of lowering the suction grill 4 and the pre-filter 8 integrally to a filter replacement position. An air cleaning filter frame 23 for containing an air cleaning filter 9 is provided on the suction grill 4, and the air cleaning filter frame 23 is raised and lowered integrally with the suction grill 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a ceiling-mounted air conditioner including a prefilter and an air purifying filter.
[0002]
[Prior art]
An air conditioner main body buried in the ceiling, a grill frame attached to a lower end of the main body and having an air outlet and a suction port, a suction grill supporting a pre-filter at an opening of the suction port of the grill frame, and a main body 2. Description of the Related Art A ceiling-embedded air conditioner including an air purifying filter provided therein is known.
[0003]
In this ceiling-mounted air conditioner, one end of a suction grill is rotatably attached to the main body and the other end is fixed, and the opening of the suction port is opened by removing this fixed portion. Has become. When cleaning or replacing the filters, the user goes up to the step, removes the fixing portion of the suction grill, opens the opening of the suction port, and removes the filters from the main body (for example, see Patent Document 1). .
[0004]
The ceiling-mounted air conditioner is equipped with a suction grill elevating device with a pre-filter attached, and when replacing the pre-filter, the suction grill is lowered so that this pre-filter can be replaced in a low place. It is known (for example, see Patent Document 2).
[0005]
[Patent Document 1]
Japanese Patent No. 3043113 [Patent Document 2]
JP-A-2002-349893
[Problems to be solved by the invention]
By the way, in the conventional configuration, since the air cleaning filter is mounted inside the main body, when replacing or cleaning the air cleaning filter, the air cleaning filter must be removed from the main body at a high position, which is troublesome for the user. Had become. Therefore, once the air purifying filter is attached, the air purifying filter is left without any maintenance, so that there is a problem that the air purifying filter is clogged and the air conditioning capacity is reduced.
[0007]
An object of the present invention is to provide a ceiling-embedded air conditioner which solves the above-mentioned problems of the conventional technology and makes it easy to attach / detach a filter when cleaning or replacing the filter.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a grill frame having an air outlet and a suction port is provided at a lower end of a main body buried in a ceiling, and a suction port is provided in a suction port of the grill frame. A grill is provided, a pre-filter for purifying suction air is detachably installed on the suction grill, and an elevating device configured so that the suction grill and the pre-filter can be integrally lowered to a filter replacement position. In the air conditioner equipped with a recessed ceiling, an air purifying filter frame for accommodating an air purifying filter is provided in the suction grill, and the air purifying filter frame is moved up and down integrally with the suction grill.
[0009]
According to a second aspect of the present invention, in the ceiling-mounted air conditioner according to the first aspect, the suction grill is provided with a lid for pressing the pre-filter from above, and the air filter frame is detachably attached to the lid. It is characterized by being attached.
[0010]
According to a third aspect of the present invention, in the ceiling-mounted air conditioner according to the first or second aspect, a heat exchanger is provided in the main body in a mountain shape, and the air purifying filter frame is a suction grill. It is characterized by being mounted in a chevron at the top, facing the suction surface of the heat exchanger and spaced apart.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of an embedded ceiling air conditioner according to the present invention, and FIG. 2 is an exploded perspective view of a grill frame and a suction grill.
[0012]
In FIG. 1, reference numeral 1 denotes an indoor unit of a ceiling-embedded air conditioner. The indoor unit 1 has a main body 2, a grill frame 3, and a suction grill 4, and the main body 2 has an opening in a ceiling plate T. A hanging tool b is fixed to four hanging bolts a attached to the building and suspended from the building, and is hung in the ceiling space.
[0013]
1 and 2, the grille frame 3 has a suction port 5 at the center and air outlets 6 at both ends of the suction port 5, and is provided detachably with respect to the bottom surface of the main body 2. A suction grille 4 having a plurality of ventilation holes is attached to 5, and an air outlet 6 is provided with a wind direction adjuster 7 for setting a blowing direction.
[0014]
An elevating device 12 for raising and lowering the suction grill 4 is provided at the suction port 5 of the grill frame 3. The lifting device 12 includes a mechanical unit 13 and a control unit 14. The mechanical units 13 are installed on both short sides of the grille frame 3, and are arranged in parallel so as to face each other across the suction port 5. Are located. Each of these mechanical units 13 has two rollers (not shown), and the rollers are connected to both ends of a shaft (not shown). This shaft is connected to an output shaft of a motor via a gear (not shown). ing. One end of a hanging string 15 is fixed to each roller of the mechanical section 13, and the other ends of the hanging strings 15 are fixed to the four corners of the suction grille 4.
[0015]
When the respective motors of the mechanical unit 13 rotate, the rollers are connected to the shaft, so that the power is transmitted to the rollers, the rollers rotate integrally with the shaft, and the respective hanging straps 15 are fed / wound. Is taken.
[0016]
The control unit 14 controls the motor when the grill up / down operation is selected by the remote controller 16 that is wirelessly communicated with the control unit 14. The grill elevating operation includes an ascending operation and a descending operation of the suction grill 4.
[0017]
FIG. 3 is a side view of the suction grille 4, and FIG. 4 is a top view of the suction grille 4. The suction grille 4 is provided with a pre-filter 8 and an air-cleaning filter (hereinafter referred to as an air-cleaning filter) 9.
[0018]
2 to 4, on the upper surface of the suction grille 4, a plurality of locking portions 17, 17,..., And a rectangle having a plurality of bars removably locked to the locking portions 17, 17,. Is provided, and the lid 18 has its peripheral edge locked by locking portions 17, 17,.... Since the locking portion 17 and the lid 18 are made of an elastic synthetic resin, when the lid 18 is detached from the locking portion 17, the lid 18 can be detached by bending the lid 18. . The pre-filter 8 is sandwiched and stored between the upper surface of the suction grill 4 and the lid 18.
[0019]
In addition, L-shaped leg attachment portions 22 are formed at six places on the upper surface of the lid portion 18, and the air purifying filter frame 23 is detachably fixed to the leg attachment portions 22. The air purifying filter frame 23 includes two sets of rectangular main frames 24 and an auxiliary frame 25 attached to the main frame 24. The air purifying filter 9 is stored in the main frame 24 and the auxiliary frame 25.
[0020]
The upper portions of the main frames 24 are connected to form two sets of main frames 24 in a mountain shape. At the lower corner of the main frame 24, four legs 26 are formed extending downward. A tip 26a of the leg 26 extends in the long side direction of the suction grill 4 and is formed in a U-shape. The tip 26a is inserted so as to sandwich the leg attachment portion 22 of the lid 18, and the air purifying filter is inserted. The frame 23 can be fixed to the lid 18. Since the main frame 24 is made of a resilient synthetic resin, the legs 26 can be inserted into the leg mounting portions 22 by slightly changing the angle forming the chevron.
[0021]
The auxiliary frame 25 is provided with a hooking piece 27 that hooks on the main frame 24 and a grid 28 that holds the air purifying filter 9. The main frame 24 and the auxiliary frame 25 are formed of a synthetic resin, and the main frame 24 and the auxiliary frame 25 have elasticity such that they can be easily deformed by hand.
[0022]
In the air conditioner configured as described above, when the air purifying filter 9 and the pre-filter 8 are detached from the suction grill 4, first, a grill elevating operation switch provided on the remote controller 16 is operated. Then, the lifting / lowering device 12 is operated, the suction grill 4 is lowered, and the suction grill 4 is stopped at a predetermined position.
[0023]
Next, the angle of the upper part of the air purifying filter frame 23 is reduced, and the tip of the leg 26 is removed from the lid 18. Thus, the air purifying filter frame 23 can be removed from the suction grill 4. By removing the auxiliary frame 25 from the main frame 24 of the removed cleansing filter frame 23, the cleansing filter 9 can be taken out from inside.
[0024]
Next, the pre-filter 8 can be taken out from the inside by removing the lid part 18 from the locking part 17 of the suction grill 4.
[0025]
When the pre-filter 8 and the air purifying filter 9 are stored, by performing the operation in the reverse order to the above, the filters 8, 9 can be stored. In this manner, the filters 8 and 9 can be attached and detached at a low place.
[0026]
FIG. 5 is a sectional view of the embedded ceiling air conditioner shown in FIG. 1 as viewed from a short side direction.
[0027]
In FIG. 5, a cross flow fan 31, which is a blower, a heat exchanger 32, an electrical box (not shown) for controlling operation, and the like are housed in the main body 2.
[0028]
The heat exchanger 32 has two blocks formed in a mountain shape and extends in the front-rear direction on the paper surface, and each block is provided so that the suction side faces obliquely downward. An auxiliary drain pan 33 is provided below the suction side of the heat exchanger 32 so as to face the suction surface, and a drain pan (not shown) is provided below the lower edge of the heat exchanger 32.
[0029]
In addition, the air purifying filter 9 is provided so as to face the suction surface of the heat exchanger 32 slightly away from the suction surface, and the cross-flow fans 31 attached to the heat exchanger 32 are arranged on the blowout side of the heat exchanger 32. I have.
[0030]
Then, when the cross flow fan 31 is operated, the indoor air sucked from the suction port 5 is sent to the heat exchanger 32 through the pre-filter 8 and the air-cleaning filter 9 as shown by the dashed arrow, where it is sent. After the heat exchange, the air is blown into the room from the air outlet 6.
[0031]
As described above, the indoor unit 1 of the present air conditioner is provided with the pre-filter 8 and the air purifying filter 9 on the suction grill 4 and the suction grill 4 is attached to the main body 2 so as to be able to move up and down. , 9 can be performed at a low place, and maintenance work such as cleaning and replacement of the filters 8, 9 can be easily performed. By facilitating maintenance, it is possible to prevent a decrease in ventilation resistance due to clogging of the filters 8 and 9.
[0032]
Further, since the air-cleaning filter 9 faces the suction surface of the heat exchanger 32 and is disposed at a small distance from the heat exchanger 32, the ventilation resistance of the air-cleaning filter 9 can be suppressed low.
[0033]
Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
[0034]
【The invention's effect】
As described above, the ceiling-embedded air conditioner of the present invention is provided with the pre-filter frame and the air purifying filter frame integrally with the suction grill, and the suction grill is attached to the main body so as to be vertically movable by the lifting device. When attaching and detaching these filters, the attaching and detaching operations of the filters can be performed at a low place, and maintenance operations such as cleaning and replacement of the filters can be easily performed.
[0035]
In addition, the air purifying filter faces the suction surface of the heat exchanger and is located at a distance from the heat exchanger, so that fine dust in the air passing through the heat exchanger is efficiently caught and the ventilation resistance is reduced. Can be kept low.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of an embedded ceiling air conditioner according to the present invention.
FIG. 2 is an exploded perspective view of a grille frame and a suction grille of the embedded ceiling air conditioner shown in FIG.
FIG. 3 is a side view of the suction grille.
FIG. 4 is a top view of the suction grill.
5 is a cross-sectional view of the embedded ceiling air conditioner shown in FIG. 1 as viewed from a short side direction.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Main body 3 Grill frame 4 Suction grill 5 Suction port 6 Blow-out port 8 Pre-filter 9 Air purification filter 12 Elevating mechanism 15 Hanging string 17 Locking part 18 Lid 22 Leg mounting part 23 Air cleaning filter frame 26 Leg 31 Cross Flow fan 32 heat exchanger

Claims (3)

At the lower end of the main body buried in the ceiling, a grill frame having an air outlet and a suction port is provided, and a suction grill is provided at the suction port of the grill frame. In the ceiling-mounted air conditioner equipped with an elevating device that is configured so that a pre-filter is detachably installed and the suction grill and the pre-filter are integrally configured to be able to descend to a filter replacement position,
An air purifying air conditioner, wherein an air purifying filter frame for accommodating an air purifying filter is provided on the suction grill, and the air purifying filter frame is lifted and lowered integrally with the suction grill. 2. The ceiling-embedded air conditioner according to claim 1, wherein the suction grill is provided with a lid portion for pressing the pre-filter from above, and the air purifying filter frame is detachably attached to the lid portion. The main body is provided with a heat exchanger disposed in a chevron, and the air purifying filter frame is placed in a chevron on an upper portion of a suction grill, facing the suction surface of the heat exchanger, and spaced apart from each other. The ceiling-mounted air conditioner according to claim 1, wherein the air conditioner is provided.

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