JP3159565B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner.

[0002]

2. Description of the Related Art In recent years, there has been known an air conditioner in which a good indoor temperature distribution is ensured by two-way blowing in response to the tendency of a large living room. In this type of air conditioner, two indoor heat exchangers are provided in an indoor unit mounted on a ceiling, and two indoor blowers are arranged to face the indoor heat exchangers, respectively.

[0003] Each of the indoor blowers takes air in the room to be air-conditioned into the unit main body from one suction port provided on the lower surface of the unit main body, and conducts the opposing indoor heat exchangers to the outlet side. The air outlets are provided so as to guide the air to the room to be air-conditioned.

[0004]

By the way, the suction port is formed in a suction grill which is a separate component from the unit body, and this suction grill is pivotally supported by a grill support provided in the unit body. A filter is detachably attached to the suction grill to remove dust contained in the suction air.

[0005] The suction grille is made of a synthetic resin material, and is formed by injection molding or the like. The structure is composed of horizontal rails arranged side by side at relatively narrow intervals, and vertical rails provided in a direction orthogonal to these horizontal rails and having a large space between each other.

[0006] The suction grille usually has an extremely large ratio between short and long dimensions in the vertical and horizontal directions. When the grill area is large, a reinforcing material is attached if necessary. However, the longitudinal bar is still easily deformed at the time of molding, and after completion, the warp is corrected using a jig. Therefore, time-consuming and troublesome work is required.

There is also a problem with the structure in which the suction grill is pivotally supported by a grill support provided on the unit body. In other words, the grill support is located on either the left or right side of the suction grill pivot depending on the mounting position. For this reason, two types of grill supports having symmetrical pivots must be prepared and selected and arranged. After all, the production effort is required, and attention must be paid to the attachment to the unit body.

On the other hand, when the cooling operation is performed, dew easily adheres to the peripheral wall of the outlet. As it is, the dew gradually enlarges and eventually falls. That is, since comfortable air conditioning is impaired, some fall prevention means is required.

Conventionally, a sheet-like flocking body is attached along the peripheral surface of the outlet to prevent dew. The attachment means attaches one side of the double-sided tape to the back side of the flocking body and attaches it to the peripheral surface of the outlet, so that a cumbersome operation is also required here. Also, when the water-trapping effect of the flocked body is reduced due to aging or the like. It is necessary to replace the flocking, but if it is attached with double-sided tape, it cannot be easily peeled off, making replacement work cumbersome, and if it is not removed properly, the installation reliability of the new flocking will decrease It will be.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a first object of the present invention is to adopt a structure for preventing a warp deformation at the time of forming a suction grill, and to improve the mounting workability and appearance. It is an object of the present invention to provide an improved air conditioner.

A second object of the present invention is to provide an air conditioner in which the support structure of the suction grill to the air conditioner main body is improved to improve the workability of the installation.

[0012]

[0013]

According to the first aspect of the present invention, an air conditioner includes a heat exchanger and a blower arranged opposite to each other in an air conditioner main body. It is equipped with an outlet, and a suction grill provided with the above-mentioned suction port is attached to the air conditioner main body, and a reinforcing material is provided along both side portions inside the suction grill, and at least approximately at the center portion, inside A vertical rail is extended, and the reinforcing member and the vertical rail guide a filter attached to the suction grill.

An air conditioner according to a second aspect of the present invention has a heat exchanger and a blower arranged opposite to each other in an air conditioner main body, and has an inlet and an outlet on a side wall surface of the air conditioner main body. A suction grill provided with the above suction port is attached to the air conditioner main body, a shaft hole is provided in the suction grill, and a shaft portion is protrudingly provided on both sides of the grill support, so that one of the shafts is provided. The suction grille is pivotally supported with respect to the air conditioner main body by selecting a part and inserting it through the shaft hole.

[0015]

[0016]

According to the first aspect of the invention, the reinforcing member is provided along both sides on the inner side of the suction grill, and the vertical bar provided substantially at the center of the suction grill is extended inward. There is no.

The filter is guided along the reinforcing member and the vertical bar, and is detachably attached to the suction grill. Since the suction grill is not deformed, it can be smoothly attached and detached. In the second invention, one of the shaft portions of the grill support is selectively inserted through a shaft hole provided in the suction grill, and the suction grill is pivotally supported by the air conditioner main body. Only one kind of tool is required, and there is no need to use nerves to attach it to the main body.

[0018]

[0019]

An embodiment of the present invention will be described below with reference to the drawings. The exterior configuration of the indoor unit of the air conditioner as shown in FIG. In the figure, reference numeral 1 denotes a unit main body which is an air conditioner main body, which is vertically provided via a hanging fixture 2. The lower surface side is a ceiling panel portion 3, which is exposed from a ceiling (not shown). That is, the unit main body 1 is mounted in the ceiling in an embedded state.

The ceiling panel 3 has the same surface as the ceiling. A suction port 4 is provided at the center except for both sides, and outlets 5a and 5b are provided on both sides. The suction port 4 is provided in a suction grill G described later, and the grill is detachable from the ceiling panel unit 3. The outlets 5a and 5b are directed to different blowing directions.

A refrigerant pipe P is connected to one side of the unit body 1, and a drain pipe 6 is connected near the refrigerant pipe P. A connector cover 7 for accommodating a terminal unit (not shown) is provided on this side surface.

The unit main body 1 has a schematic configuration as shown in FIG. A heat insulating material 8 is provided along the inner peripheral surface of the unit body 1, and a space 9 inside the heat insulating material 8 is provided.
Is divided into two parts by the partition plate 10 in the upright state. Filters 11 and 11 are inserted into a suction port 4 provided in the suction grill G. Each outlet 5a, 5b
A wind direction grill 20, which can adjust the blowing direction within a predetermined range,
20.

In the unit main body 1, two indoor heat exchangers 13a and 13b and indoor blowers 14a and 14b are disposed on the left and right of the partition plate 10 so as to face each other. Noses 15a and 15b are provided between the indoor blowers 14a and 14b and the outlets 5a and 5b.

Therefore, in the unit body 1, 2 parts extending from the suction port 4 divided in half to the outlets 5a and 5b are provided.
System ventilation paths 16a and 16b are formed. The ventilation passages 16a and 16b allow the heat exchange air in the room to be air-conditioned R below the ceiling 17 to be taken into the main body 1 from the suction port 4 to make the indoor heat exchangers 13a and 13b conductive, and the indoor blowers 14a and 14b to be connected.
Noses 15a, 15b between 4b and outlets 5a, 5b
Through the outlets 5a and 5b, and the air-conditioned room R again.
It is a guide to blow out inside.

Here, the heat exchange air blown from one of the outlets 5a is directed toward the zone A of the room R to be air-conditioned. The heat exchange air blown out from the other blowout port 5b is directed toward the zone B of the room R to be air-conditioned.

FIG. 3 is an exploded view of the components of the ceiling panel section 3. Reference numeral 18 denotes a rectangular frame-shaped panel body. The figure shows the back side (the top side because it is a ceiling-embedded type air conditioner), and the front side is not shown here. The outlets 5a and 5b, which are a pair of elongated rectangular openings, are provided in a portion along the longitudinal direction of the panel main body 18.

Here, a pair of wind direction grill attachment portions 19, 19 are provided at each of the air outlets 5a, 5b so as to be separated from each other, and pivotally support a wind direction grill 20 and a blade plate 21 shown in the center in the figure. . Shafts 20a, 20a are integrally provided on both sides of the wind direction grill 20, and a bushing 22, which will be described later, which is fitted to the opening side end of the panel main body 18, is fitted therein.

FIG. 8 shows an enlarged view of a pivotal support structure of the bushing 22 with respect to the wind direction grill 20. The bushing 22 is provided to prevent the generation of abnormal noise such as squeaking noise when the wind direction grill 20 rotates.
Are fitted in mounting holes 23 provided on the side walls of the air outlets 5a, 5b. A bearing hole 24 is provided along the axis, into which the shaft portion 20a of the wind direction grill 20 is rotatably inserted.

If the bushing 22 is simply fitted into the mounting hole 23, it may fall off from the panel body 18 during operation of the grille 20 or during transportation of the product, and the reliability is low.

Therefore, as shown in FIG. 9 (A), a projection 22a is provided integrally with the bushing 22 on the panel body insertion side, a recess 22b is provided at the fitting portion, and a flange 22c is provided integrally with the wind direction grill side end. Make a stop. In any of the rotating operation and the transportation, the falling off of the bushing 22 can be reliably prevented.

In FIG. 9A, the projection 22a is provided along the entire circumference of the bushing 22, but as shown in FIGS. 9B and 9C, the projection 22a is symmetrical with respect to the axis. The projecting portions 22d may be divided. In this case, if the mounting hole on the panel main body 18 side is also provided according to the shape of the projection, a further retaining effect can be obtained.

As shown in FIG. 10, dew preventing members 25 are provided on both longitudinal sides of the outlets 5a and 5b. The surface of the anti-dew body 25 is planted, and the air that has been heat-exchanged in the unit body 1 comes into contact with the anti-dew body and is blown out from the outlet.

The mounting structure of the anti-dew body 25 to the panel body 18 is detailed in FIG. That is, the outlet 5
Engagement portions 26 are integrally provided on the peripheral surfaces of a and 5b. The engaging portion 26 is formed in a horizontal T-shape in cross section, and it suffices if there are a plurality of portions at predetermined intervals. A punching hole 27 is provided on the lower side of the figure, which is convenient for punching when the hooking portion 26 is formed.

The dew-prevention body 25 is formed in a substantially 7-shaped cross section, and its outer peripheral surface is a flocked portion 25a. A hook 25b having a T-shaped cross section is integrally provided on the back side of the vertical piece.

In attaching the dew preventing body 25 to the panel body 18, the short piece is inserted into the upper part of the engaging part 26, and the lower part of the engaging part 25b is inserted into the lower part of the engaging part 26. These operations can be easily performed by utilizing the elasticity of the prevention body 25. As a result, the hook 25 provided on the prevention body 25
b holds the engaging portion 26 of the panel main body 18, and the preventive body is securely attached.

Compared to conventional attachment means using tape on both sides, there is no change over time even over a long period of use.
The dew around the outlets 5a and 5b is prevented. As shown in FIG. 3 again, the outlets 5a and 5
b and a panel reinforcing member 2 having an L-shaped cross section
8 is screwed to reinforce the panel body 18.

A wind direction grill motor 29 is provided on each of the support members 3 on the lower right and upper portions of the panel body 18 in the figure.
0 is attached. The blade 21 described above is mechanically connected to the rotation shaft of the motor 29, and rotates left and right with the driving of the motor.

The lower ends of the panel suspending strings 31 suspended from a unit body (not shown) are hooked to the left and right sides. Even when the ceiling panel section 3 is detached from the unit body 1, the panel section 3 still has the hanging strings 31, 31.
And can prevent natural fall.

The suction grille G is arranged at the suction opening 4 which is a central opening of the panel main body 18. That is, a plurality of grill supports 34, which will be described later, are provided on the periphery of the opening, and are supported by these.

The suction grill G has a horizontally long rectangular outer peripheral frame 35.
Are arranged side by side at relatively narrow intervals, and a plurality of vertical bars 37 are integrally formed at relatively wide intervals in a direction orthogonal to this. Reinforcing members 38 are screwed to both sides of the outer peripheral frame parallel to the vertical rail 37,
Reinforce suction grill G.

Particularly, the pair of filters 11, 11 are guided by the vertical bar 37a at the center and the reinforcing members 38 at both sides, and the filter G is attached to the grill G. As shown in FIG. 4A, in particular, the vertical bar 37 a at the center extends inward from the edge of the horizontal bar 36. In other words, the other vertical rails 37 except the central vertical rail 37a have the same width as the horizontal rail 36.

As described above, since the central vertical bar 37a extends inward, a warp that is likely to occur due to a difference in heat balance between the respective portions when the suction grill G is formed is corrected, and the appearance is prevented from being deformed. .

As shown in FIG. 4B, reinforcing members 38, 38 attached to both sides of the grill G project inward by the same size as the central vertical bar 37a. Therefore, when attaching the pair of filters 11, 11 to the suction grill G,
The reinforcing members 38, 38 and the central vertical rail 37a form a guide. In particular, there is no need to attach a separate member serving as a guideline for the filter 11, and this attachment position can be easily set.

As shown in FIGS. 5 and 6, the grill support 34 includes a fixing piece 34a screwed to the panel body 18 and a support arm 34b projecting toward the suction grill G side.
And a pair of shaft portions 34c provided on the support arm.
And are integrally formed. These shaft portions 34c, 34c
Are projectingly provided on both sides of the support arm with their axes aligned.

The grill support 34 is attached to the suction grill G.
The left or right one of the shaft portions 34c is selected and locked. The shaft part 34c on the other side is used depending on the mounting position of the grill support 34.

In other words, by preparing the grill support 34 which is a common component, the suction grill G can be pivotally supported without being affected by the mounting position. FIG. 11 shows a refrigerant flow path configuration in the indoor heat exchangers 13a and 13b. That is, two rows of refrigerant channels 40a and 40b are arranged in parallel in each of the indoor heat exchangers 13a and 13b. Here, the respective refrigerant flow paths 40a, 40a,
40b is divided into a leeward side (inside) and a leeward side (outside).

An inlet-side refrigerant pipe P is connected to one end of the refrigerant flow path 40a on the windward side, and an outlet-side refrigerant pipe P is connected to an end of the other refrigerant flow path 40b. The air conditioner described here constitutes a heat pump type refrigeration cycle as described later, and therefore, the direction of conduction of the refrigerant flowing through the refrigerant pipe P changes in the opposite direction. In any case, an independent refrigerant passage is formed in each of the indoor heat exchangers 13a and 13b.

Note that heat exchanger sensors 41a and 41b are attached to the downwind side of the indoor heat exchangers 13a and 13b, respectively. FIG. 12 shows a configuration of a refrigeration cycle circuit and a control circuit of an air conditioner including such an indoor unit.

The discharge part of the compressor 43 is connected to an outdoor heat exchanger 45 via a four-way valve 44. This outdoor heat exchanger 45
The refrigerant pipe P is branched in two directions, and connected to the indoor heat exchangers 13a and 13b divided into two via electric expansion valves 46a and 46b, respectively. These indoor heat exchangers 13
a and 13b are connected to the suction part of the compressor 43 via a four-way valve 44.

During the cooling operation, the compressed refrigerant is discharged from the compressor 43 and is guided in the direction indicated by the solid line arrow in the figure to form a cooling cycle. At this time, the outdoor heat exchanger 45 functions as a condenser, and the indoor heat exchangers 13a and 13b function as evaporators.

During the heating operation, the compressed refrigerant is discharged from the compressor 43 and guided in the direction indicated by the dashed arrow in the drawing to form a heating cycle. At this time, the outdoor heat exchanger 45 functions as an evaporator, and the indoor heat exchangers 13a and 13b function as condensers.

Reference numeral 50 denotes a control unit, which comprises a microcomputer and its peripheral circuits. The control unit 50 is connected to a commercial AC power supply 52 via a step-down transformer 51.

The control unit 50 includes the electric expansion valves 46a, 4
6b, heat exchanger temperature sensors 41a, 41b, four-way valve 4
4. The outdoor blower 53, the inverter circuit 54, the tap switching circuits 55a and 55b, the indoor temperature sensor 56, and a remote control type operation controller (hereinafter, abbreviated as a remote controller) 57 are connected.

The inverter circuit 54 rectifies the voltage of the power supply 52, converts the rectified voltage into AC having a frequency (and voltage) according to a command from the control unit 50, and outputs the AC. This output serves as a power supply for driving the motor of the compressor 43.

The tap switching circuits 55a and 55b switch power supply from the power supply 52 to each speed tap in the fan motors 14aM and 14bM of the indoor blowers 14a and 14b.

The remote controller 57 has zone selection buttons 57a and 57b for selecting one of the local control modes of the zone A and the zone B, in addition to the function of setting operating conditions.

The control section 50 has the following functional means. (1) The refrigerant discharged from the compressor 43 is supplied to the four-way valve 44, the outdoor heat exchanger 45, the electric expansion valves 46a and 46b, and the indoor heat exchanger 13.
a, 13b and means for returning to the compressor 43 through the four-way valve 44 to execute the cooling operation.

(2) The refrigerant discharged from the compressor 43 is supplied to the four-way valve 4
4, indoor heat exchangers 13a, 13b, electric expansion valve 46a,
46b, means for returning to the compressor 43 through the outdoor heat exchanger 45 and the four-way valve 44 to perform a heating operation.

(3) During operation, the detected temperature (indoor temperature) Ta of the indoor temperature sensor 56 and the set temperature Ts of the remote controller 57
Means for controlling the output frequency of the inverter circuit 54 (the operating frequency of the compressor) according to the difference between

(4) Zone selection button 57 of remote controller 57
In the normal control mode in which neither a nor 57b is operated, means for setting the air volume of the indoor blowers 14a and 14b to the same value (three levels of strong, weak and fine) according to the operation of the remote controller 57.

(5) One of the local control modes of the zones A and B is selected according to the operation of the zone selection buttons 57a and 57b, and the indoor blowers 14a and 1
Means for changing the air volume ratio of 4b.

(6) The operation of the indoor blowers 14a and 14b and the operation of the wind direction grill motors 29 and 29 are controlled in order to independently control the amount, speed and direction of the heat exchange air blown out from each of the outlets 5a and 5b. means.

(7) The throttle amounts of the electric expansion valves 46a and 46b are independently controlled to vary the amount of refrigerant guided to the indoor heat exchangers 13a and 13b. Means for controlling the amount of change in temperature difference from the compressor suction temperature (superheat amount, undercool amount) to an appropriate value.

Next, the operation of the above configuration will be described. In the normal control mode in which none of the zone selection buttons 57a, 57b of the remote controller 57 is operated, the indoor blowers 14a, 14b
a is the same value (strong, weak,
(Fine).

That is, when the air volume "strong" is set by the remote controller 57, the tap switching circuits 55a and 55b energize the high-speed taps of the indoor blower fan motors 14aM and 14bM. Thereby, the indoor blower 14
a and 14b rotate at a high speed, and a large amount of heat exchange air is blown out to the zones A and B of the room R to be air-conditioned.

When the air volume is set to "weak", power is supplied to the medium speed tap, and the indoor blowers 14a and 14b rotate at the medium speed. Also, when the air volume “fine” is set. Power is supplied to the low-speed tap, and the indoor blowers 14a and 14b rotate at low speed.

On the other hand, when one of the zone selection buttons 57a, 57b is pressed, the mode is changed to the local control mode, and the air volume ratio of the indoor blowers 14a, 14b is changed. For example, when the zone selection button 57a is pressed, the mode enters the local selection mode of the zone A, the air volume of the indoor blower 14a is increased by α from the value according to the operation of the remote controller 57, and the air volume of the remaining indoor blowers 14b is increased. It is reduced by β from the value according to the operation of the remote controller.

That is, when entering the local control mode of the zone A, if the air volume "strong" is set by the remote controller 57, the tap switching circuit 55a energizes the ultrahigh-speed tap of the indoor blower fan motor 14aM. You. As a result, the rotation speed of the indoor blower 14a changes from a high speed to a very high speed, and the air volume to the zone A increases.

The tap switching circuit 55b supplies electricity to the medium speed tap of the indoor blower fan motor 14bM, whereby the rotation speed of the indoor blower 14b is reduced from a high speed to a medium speed, and the air volume to the zone B is reduced. .

During the cooling operation, the opening degree of the motor-operated expansion valve 46a on the liquid side line of the opposed indoor heat exchanger 13a is normally adjusted with the air volume of one indoor blower 14a on the zone A side increased. Open more than opening. Therefore, the temperature difference between the heat exchanger temperature and the suction temperature of the compressor is maintained at the same superheat amount as usual, thereby preventing the dew state at the outlet 5a.

At the same time, while the air volume of the other indoor blower 14b on the zone B side is reduced, the indoor heat exchanger 13
The opening of the electric expansion valve 46b communicating with the valve b is closed more than the normal opening. Therefore, the temperature difference between the heat exchanger temperature and the suction temperature of the compressor is maintained at the same superheat value as the normal value, thereby preventing the indoor heat exchanger 13b from freezing and maintaining the cooling capacity.

During the heating operation, the indoor blower 1 on the zone A side
In order to increase the air volume of 4a, the louver is opened or the rotation speed is increased, and the opening of the electric expansion valve 46a is opened more than the normal opening to keep the temperature of the indoor heat exchanger 13a at the same level as normal. This prevents cold air from blowing out.

Further, in order to reduce the air volume on the zone B side, the louvers are closed, the number of revolutions of the indoor blower 14b is reduced, and the opening of the electric expansion valve 46b is closed from the normal opening to reduce the heat exchanger temperature. Holds normally, thereby preventing transition to a hot release.

As described above, the respective electric expansion valves 46 are set in accordance with the required air volume, the wind speed, and the wind direction of each of the outlets 5a and 5b.
By adjusting the opening degrees of a and 46b, the optimum refrigerant flow rate is always controlled, and the air conditioning is linked to comfortable air conditioning.

In the above embodiment, the present invention is applied to the so-called ceiling-mounted type air conditioner mounted on the ceiling surface.
The present invention is not limited to this, and can be applied to a wall-mounted type having two indoor heat exchangers. Further, it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0076]

As described above, according to the present invention, a reinforcing member is provided along both sides on the inner side of the suction grill, and a vertical bar is provided at least substantially at the center to extend inward. Since the filter guides with the crosspiece, warpage deformation when forming the suction grille is reliably prevented, improving the forming workability, and improving the workability of attaching the grill to the specified part and the appearance. It has an effect that can be achieved.

According to the second aspect of the present invention, a shaft hole is provided in the suction grille, and a shaft portion is provided on both sides of the grill support so that one of the shaft portions is selected and inserted into the shaft hole. Since the suction grille is pivotally supported with respect to the air conditioner main body, even when a plurality of support members are provided for supporting the suction grille on the main body, mounting work is performed by the shaft portions provided on both sides of the support grille. Therefore, it is not necessary to provide different parts for each of them, and the number of parts and the cost of parts can be reduced.

[0078]

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is a perspective view of an indoor unit of a ceiling-mounted air conditioner.

FIG. 2 is a schematic longitudinal sectional view of the indoor unit of the embodiment.

FIG. 3 is an exploded perspective view of components of the ceiling panel according to the embodiment.

FIG. 4A is a cross-sectional view of the suction grille of the embodiment in a lateral direction. (B) is a longitudinal section of the suction grille of the example.

FIG. 5 is a diagram illustrating details of mounting a grill support in the embodiment.

FIG. 6 is a perspective view of the grill support of the embodiment.

FIG. 7 is a diagram illustrating a mounting structure of the dew-prevention body according to the embodiment.

FIG. 8 is a view for explaining a pivot structure of a wind direction grill of the embodiment.

FIG. 9A is a perspective view of a bushing of the embodiment.
(B) is a perspective view of a bushing of another embodiment. (C)
3 is a longitudinal sectional view of the bushing shown in FIG.

FIG. 10 is a perspective view of the outlet of the embodiment.

FIG. 11 is a diagram illustrating a refrigerant flow path of the indoor heat exchanger of the embodiment.

FIG. 12 is a configuration diagram of a refrigeration cycle and a control circuit of the embodiment.

[Explanation of symbols]

13a, 13b ... indoor heat exchanger, 1 ... air conditioner body (unit body), 14a, 14b ... indoor blower, 4 ...
Suction ports, 5a, 5b: outlets, G: suction grille, 38 ...
Reinforcing material, 37a: vertical beam, 11: filter, 34c: shaft, 34: grill support, 26: hook, 25b: hook, 25a: flocking, 25: dew-preventing body.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Makoto Mimaki 336 Tatehara, Fuji-shi, Shizuoka Prefecture Inside the Toshiba Fuji Plant (56) References JP-A-1-123925 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) F24F 1/00 401 F24F 13/28

Claims (2)

(57) [Claims] An air conditioner main body in which a heat exchanger is disposed, a blower disposed in the air conditioner main body so as to face the heat exchanger, and for circulating indoor air; A suction port formed on a side wall surface of the main body of the harmony machine, and for guiding the heat exchange air to the heat exchanger in accordance with driving of the blower, and an air outlet for blowing and guiding the heat exchange air after heat exchange with the heat exchanger. An air conditioner comprising: a suction grill provided with the suction port, attached to an air conditioner body; a reinforcing member provided along both sides inside the suction grill; and a substantially central portion of the suction grill. An air conditioner comprising: a vertical bar provided and extending inward; and a filter guided by the reinforcing member and the vertical bar and attached to the suction grill. 2. An air conditioner main body in which a heat exchanger is disposed, a blower disposed in the air conditioner main body so as to face the heat exchanger, and for circulating indoor air; A suction port formed on a side wall surface of the main body of the harmony machine, and for guiding the heat exchange air to the heat exchanger in accordance with driving of the blower, and an air outlet for blowing and guiding the heat exchange air after heat exchange with the heat exchanger. An air conditioner comprising: a suction grill provided with the suction port and attached to the air conditioner body; a shaft hole provided in the suction grill; and a shaft portion protruding on both sides thereof; An air conditioner, comprising: a grille supporting member, one of the shaft portions being selected and inserted through the shaft hole, for pivotally supporting the suction grille with respect to the air conditioner body.