KR102334417B1 - Indoor unit for air conditoiner - Google Patents

Abstract

An indoor unit of an air conditioner according to an embodiment of the present invention includes: a cabinet disposed inside a ceiling of the room; a blowing fan provided inside the cabinet; a heat exchanger disposed to surround the outside of the blowing fan; a drain pan assembly seated inside the cabinet to form an air flow passage and collecting condensed water generated in the heat exchanger; a front panel mounted on the opening surface of the cabinet to form an exterior exposed to the ceiling surface, the front panel having a panel opening through which indoor air is sucked and a front panel discharge port through which the heat-exchanged air is discharged; a suction grill which is mounted to open and close the panel opening and has a suction port through which indoor air is sucked; and a control box provided inside the cabinet exposed through the panel opening and shielded by the suction grill.

Description

Indoor unit for air conditioner { Indoor unit for air conditioner }

The present invention relates to an indoor unit of an air conditioner.

In general, an air conditioner is a cooling/heating system that cools or heats a city by repeating the action of sucking indoor air, exchanging heat with a low-temperature or high-temperature refrigerant, and then discharging it into the room. Compressor-Condenser-Expansion A device that forms a series of cycles consisting of a valve-evaporator.

In particular, the air conditioner consists of an outdoor unit mainly installed outdoors (sometimes called 'outdoor side' or 'heat dissipation side') and an indoor unit mainly installed inside a building (also called 'indoor side' or 'heat absorbing side'). A condenser (outdoor heat exchanger) and a compressor are installed in the outdoor unit, and an evaporator is installed in the indoor unit (indoor heat exchanger).

And, as is well known, the air conditioner can be broadly divided into a separate type air conditioner in which an outdoor unit and an indoor unit are installed separately, and an integrated air conditioner in which an outdoor unit and an indoor unit are installed integrally. A coordinator is preferred.

Among these separate type air conditioners, in the multi-type air conditioner, a plurality of indoor units are connected to one outdoor unit, and since these indoor units are respectively installed in a room for air conditioning, the effect of installing a plurality of air conditioners can be obtained.

And, among the indoor units of such multi-type air conditioners, the indoor units of the cassette type air conditioners installed on the ceiling of the indoor space to cool and cool the indoor space are widely used.

In addition, in Korean Patent Laid-Open No. 10-2009-0074374, a blower fan, a heat exchanger, a fan motor, and a drain pan for collecting condensed water of the heat exchanger are provided inside a cabinet installed on the ceiling, and one side of the drain pan is provided. There is disclosed a structure in which a control box is provided and a front front panel that shields the lower surface of the cabinet is exposed to the ceiling surface.

In the indoor unit of the air conditioner having such a structure, in order to perform service work such as inspection or repair of the control box, the front front panel must be completely removed to expose the open side of the cabinet.

Accordingly, there is a problem in that the front front panel must be separated and reassembled every time a service is performed.

It is an object of the present invention to provide an indoor unit of an air conditioner capable of improving the service performance of the control box by opening only the intake grill to expose the control box while the front panel is mounted on the cabinet. have.

An indoor unit of an air conditioner according to an embodiment of the present invention includes: a cabinet disposed inside a ceiling of the room; a blowing fan provided inside the cabinet; a heat exchanger disposed to surround the outside of the blowing fan; a drain pan assembly seated inside the cabinet to form an air flow passage and collecting condensed water generated in the heat exchanger; a front panel mounted on the opening surface of the cabinet to form an exterior exposed to the ceiling surface, the front panel having a panel opening through which indoor air is sucked and a front panel discharge port through which the heat-exchanged air is discharged; a suction grill which is mounted to open and close the panel opening and has a suction port through which indoor air is sucked; and a control box provided inside the cabinet exposed through the panel opening and shielded by the suction grill.

The control box may be mounted on the drain pan assembly.

A control box accommodating portion recessed in an outer surface of the drain pan assembly and in contact with one side of the cabinet to accommodate the control box may be formed.

The control box may be opened at a height corresponding to an opening surface of the cabinet.

The control box may be formed to have a length smaller than a width of the panel opening.

The control box includes: a box case in which the PCB is accommodated; and a box cover for opening and closing the box case.

The box cover is configured to open and close by rotating with respect to the end side of the panel opening.

A plurality of box coupling protrusions are formed on the upper end of the box case and protrude inward, and a cover coupling hole is formed in which the box coupling protrusions are always inserted at positions corresponding to the box coupling protrusions on the edge bent at the side end of the box cover. characterized by being

The box coupling protrusion includes an extension portion extending from the box case and bent upward stepwise, and a restraining portion protruding from an end of the extension portion to both sides of the extension portion, and the cover coupling portion is opened at the rim, It is characterized in that it comprises an upper opening larger than the width of the extension portion and smaller than the width of the restraining portion, and a lower opening greater than the width of the restraining portion at a lower portion of the upper opening.

It characterized in that the suction grill is provided with a hinge device connected to the front panel so that the suction grill can be rotated.

The suction grill is characterized in that it is operated from the outside of the suction grill and is selectively constrained to the front panel, characterized in that provided with a restraining device for selectively coupling the suction grill to the front panel.

According to the present invention having the configuration as described above, the following effects can be expected.

First, for the service of the control box, access to the control box is made possible by opening the suction grill without a separate front panel separation operation, and thus, the effect of improving the service workability of the control box can be expected. have.

Second, when the suction grill is opened for access to the control box, the suction grill is opened only by a simple manipulation of the restraining device of the suction grill, and the panel opening is completely opened by a hinge device while the suction grill is closed. By maintaining the mounted state, work convenience can be further improved.

Third, the configuration of the control box is composed of a box case and a box cover, and the box cover is rotatably mounted to maintain a suspended state on the control box, thereby making service work easier.

In addition, the box cover rotates toward the end of the panel opening to open the box case, thereby making it possible to access the inside of the box case without interference by the box cover, thereby improving workability.

1 is a perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.
2 is an exploded perspective view of the indoor unit.
3 is an exploded perspective view of a drain pan assembly according to an embodiment of the present invention.
4 is a perspective view of the control box.
5 is an exploded perspective view of the control box.
FIG. 6 is a cross-sectional view 6-6′ of FIG. 4 .
7 is an open perspective view of the control box.
8 is an open perspective view of the suction grill according to the embodiment of the present invention.
9 is an open perspective view of the control box.

Hereinafter, specific embodiments of the present invention will be described in detail with drawings. However, the present invention cannot be said to be limited to the embodiments in which the spirit of the present invention is presented, and other inventions that are degenerative by addition, change, deletion, etc. of other components or other embodiments included within the scope of the present invention are easy can suggest

1 is a perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention. And, FIG. 2 is an exploded perspective view of the indoor unit.

As shown in the drawing, the indoor unit 1 (hereinafter referred to as “indoor unit”) of the air conditioner according to the embodiment of the present invention includes a cabinet 10 inserted into the ceiling of an indoor space as a whole, and the cabinet 10 ) provided at the lower end to form the exterior of the lower surface, and may be composed of a front panel 20 and a suction grill 21 exposed to the lower side of the ceiling when the indoor unit is installed.

In the interior of the cabinet 10 , a heat exchanger 30 that exchanges heat with the sucked air, a blower fan 40 for forced suction and discharge of indoor air, and the air sucked toward the blower fan 40 are guided An orifice member 50 to collect condensed water generated in the heat exchanger 30 , a drain pan assembly 60 for collecting condensed water, and a drain pump 70 for discharging the collected condensed water to the outside may be provided.

The front panel 20 is mounted on the lower end of the cabinet 10 and may have a substantially rectangular shape when viewed from below. In addition, the front panel 20 may be configured to protrude more outward than the lower end of the cabinet 10 so that the periphery thereof is in contact with the lower surface of the ceiling.

A front panel outlet 22 serving as an outlet for air discharged through the cabinet 10 may be formed in the front panel 20 . The front panel outlet 22 may be formed at opposite sides of the front panel 20 at positions facing each other, and may be formed at positions corresponding to the outer ends of the cabinet 10 . In addition, the front panel outlet 22 may be formed to be elongated in the longitudinal direction of the front panel 20 , and may be configured to be opened and closed by a vane 23 mounted on the front panel 20 .

A suction grill 21 is mounted on the central portion of the front panel 20 , and forms a part of the outer surface of the lower surface of the indoor unit 1 . The suction grill 21 is positioned between the pair of front panel outlets 22 and may be formed in a plate shape capable of shielding the central opening of the front panel 20 .

The suction grill 21 forms a passage for air introduced into the indoor unit 1 . That is, at least a portion of the suction grill 21 is formed in a grill or grid shape to form a plurality of suction ports to smoothly introduce indoor air.

The suction grill 21 is configured to shield the panel opening 201 opened in the center of the front panel 20 , and is rotated by a hinge device 212 provided in the front panel 20 . The panel opening 201 may be opened and closed.

In addition, a restraining device 211 for maintaining a state in which the suction grill 21 is fixedly mounted to the front panel 20 may be provided on one side of the suction grill 21 . A portion of the restraining device 211 may be exposed to the outside of the intake grill 21 , and the intake grill 21 may be selectively released from the front panel 20 by a user's manipulation to rotate can be configured.

Meanwhile, the cabinet 10 may include an outer plate 11 forming an exterior and an inner case 12 provided inside the outer plate 11 .

The out plate 11 may be configured such that a plate-shaped steel material forms the exterior of the cabinet 10 having an open lower surface. The out plate 11 may be formed by combining components forming each side with each other, or may be formed by bending to have at least one side.

In addition, an inner case 12 is formed on the inner surface of the outer plate 11 . The inner case 12 may be formed of an insulating material such as expanded polystyrene (EPS), and serves to insulate the inside of the cabinet 10 and prevent noise and vibration. The inner case 12 may be in close contact with the outer plate 11 to form an interior shape of the cabinet 10 , and a surface in contact with the front panel 20 may be completely opened.

The blowing fan 40 may be provided in the inner space of the inner case 12 , and the heat exchanger 30 may be disposed around the blowing fan 40 . The heat exchanger 30 is disposed along the inner surface of the inner case 12 and is formed to be spaced apart from the wall surface of the inner case 12 and the blower fan 40 .

Accordingly, the air sucked in the axial direction of the blower fan 40 is discharged while rotating in the circumferential direction of the blower fan 40 and can exchange heat with the refrigerant while passing through the heat exchanger 30 .

A drain pan assembly 60 is mounted on the open surface of the cabinet 10 to shield the open surface of the cabinet. In addition, the drain pan assembly 60 has a structure to be seated on the upper end of the inner case 12 .

When the drain pan assembly 60 is mounted, outlets 13 communicating with the front panel outlet 22 and discharging heat-exchanged air may be defined on both sides of the cabinet 10 . In addition, a suction port is formed in the center of the drain pan assembly 60 , which is opened so that air sucked through the suction grill 21 is directed toward the blowing fan 40 .

Hereinafter, the structure of the drain pan assembly 60 will be described in more detail with reference to the drawings.

3 is an exploded perspective view of a drain pan assembly according to an exemplary embodiment of the present invention as viewed from above.

As shown in the drawing, the drain pan assembly 60 includes a body 61 , a pan plate 62 forming a surface facing the inner side of the inner case 12 , and a center of the body 61 . It may be composed of an orifice member 50 to be mounted.

The body 61 may be formed of the same material as the inner case 12 , and may insulate the inside of the cabinet 10 . And the body 61 forms the overall shape of the drain pan assembly 60 .

A body opening 611 to which the orifice member 50 is mounted may be formed in the center of the body 61 . In addition, a front panel insertion part 612 may be formed at a position facing each other on the inner surface of the body opening 611 . The front panel insertion part 612 is formed at a position corresponding to the front panel fixing part 523 formed in the orifice member 50 when the orifice member 50 to be described below is mounted, so that the front panel 20 is formed. It forms a space into which the front panel hook (not shown) is inserted.

In addition, the inwardly depressed portions 613 are formed on both side surfaces of the body 61 , and the depressed portions 613 form the discharge ports 13 when the drain pan assembly 60 is mounted. . In addition, a box accommodating part 614 providing a space in which the control box 80 can be disposed may be further formed on the other side of the body 61 .

The fan plate 62 is provided below the body 61 . The pan plate 62 accommodates the lower portion of the body 61 , and forms the entire lower surface of the drain pan assembly 60 . In addition, the pan plate 62 may be formed of a plastic material different from that of the body 61 , and may be configured to form a lower surface of the drain pan assembly 60 and to protect the body 61 . have.

The fan plate 62 may have a structure in which the body 61 is press-fitted or adhered to the fan plate 62 after injection molding with a plastic material to be coupled to each other. In addition, the fan plate 62 may be formed by insert injection during molding of the body 61 . Also, if necessary, the fan plate 62 and the body 61 may be integrally formed of the same material.

A space for collecting condensed water may be formed in the fan plate 62 , and a suction side of the drain pump 70 may be positioned to suction and discharge the collected condensed water.

In addition, a heat exchanger accommodating portion accommodating the end of the heat exchanger 30 is recessed in the fan plate 62 , and an orifice protruding to the inside of the body opening 611 is seated at the center of the fan plate 62 . A portion 623 is formed. The orifice seating part 623 is formed in a shape corresponding to the orifice fitting part 513 formed on the bottom surface 51 of the orifice member 50, and can be supported in a state in which the orifice member 50 is seated. is configured to

And, on one side of the fan plate 62, when combined with the body 61, it is disposed on the box receiving part 614 side so that the control box 80 can be seated a control box seating part 624 may be further formed.

The control box 80 is positioned in the box receiving part 614 in a state where it is seated on the box seating part 624 , and when the suction grill 21 is opened, the panel opening 201 of the front panel 20 . ) can be exposed.

Hereinafter, the control box will be described in more detail.

4 is a perspective view of the control box. And, Figure 5 is an exploded perspective view of the control box. And, FIG. 6 is a cross-sectional view 6-6' of FIG.

As shown in the drawing, the control box 80 may include a box case 81 and a box cover 82 .

The box case 81 provides a space inside which other electrical components including the PCB 83 can be mounted. It may be formed in a shape.

In addition, it may be formed to have a shape corresponding to the shape of the box seating part 624 and the box receiving part 614 . Accordingly, one side of the drain pan assembly 60 can be formed while being mounted on the box mounting part 624 .

A sub-case part 811 extending laterally may be formed on one side of the box case 81 . The sub-case part 811 provides an additional space in which components that can be added according to the model of the indoor unit 1 can be connected to the PCB 83 .

Also, at least a portion of the cutout 811a may be formed around the sub-case portion 811, and direct access from the side of the out plate 11 is possible through the cutout 811a. In addition, a holder 811b for mounting a separate electric wire may be mounted on the bottom surface of the sub-case part 811 .

On the other hand, a portion of one side of the box case 81 has a box inlet 812 cut to form a passage through which wires connected to the components inside the indoor unit 1 enter and exit. Accordingly, the electric wires are guided in an organized state through the box inlet 812 , and can be connected to the PCB 83 inside the box case 81 .

In addition, at least one fastening part 813 is formed at an upper end of one side of both sides of the box case 81 . The fastening part 813 is formed by vertically bending the upper end of the box case 81 inward, and may form a surface on which the box cover 82 is seated. In addition, in a state in which the box cover 82 is seated, the coupling member S is fastened to pass through the box cover 82 and the fastening part 813 so that the box case 81 and the box cover 82 are seated. can be coupled and fixed.

A box coupling protrusion 84 may be formed on the upper end of the other side of the box case 81 . The box coupling protrusion 84 is formed on the upper end of the box case 81 at a position facing the fastening part 813, and a plurality of them may be arranged at regular intervals.

The box coupling protrusion 84 may extend from an upper end of the box case 81 and may be vertically bent in an inner direction of the box case 81 . Then, it is inserted into the cover coupling hole 85 of the box cover 82 to be described below so that the box cover 82 can be coupled to the box case 81, and according to a user's operation, the box case It is also possible to open the box case 81 in a suspended form by being separated from or rotated from (81).

In detail, the box coupling protrusion 84 may include a bent portion 844 extending from an upper end of the box case 81 and a restraining portion 845 formed at an end of the bent portion 844 . The bent portion 844 may be formed to extend inside the box case 81 . The bent part 844 may include a first extension part 841 and a second extension part 843, and a connection part 842 connecting the first extension part 841 and the second extension part 843. have. The first extension portion 841 is positioned further lower than the second extension portion 843 , and is connected to the upper end of the box case 81 .

Meanwhile, restraint portions 845 extending in both left and right sides may be formed at an end of the bent portion 844 . The restraining part 845 is to prevent the box cover 82 from being arbitrarily removed, and is formed to have a greater width than the width of the bent part 844 .

The box cover 82 shields the opened upper surface of the box case 81 , and is formed to shield the remaining portion except for a portion of the sub-case portion 811 . That is, a sub-cover part 821 may be formed on the side of the box cover 82 , and the sub-cover part 821 may be configured to shield a part of the sub-case part 811 . In addition, one side of the sub-cover part 821 may be bent downward to form a shielding part 821a, and a guide part 821b for entry and exit of the electric wire may be further formed in the center of the shielding part 821a. can

A portion of the rim 822 of the box cover 82 may be bent downward, and may be inserted into the box case 81 to be in contact with the circumferential surface of the box case 81 .

Screw holes 823 may be formed on both sides of the box cover 82 seated on the fastening part 813, and a coupling member S, such as a screw, is fastened to the screw hole 823 so that the box cover ( 82) to be fixed to the box case 81.

On the other hand, at one side of the circumference of the box cover 82 , more specifically, a cover coupling hole 85 is formed at the front end in contact with the box coupling protrusion 84 when the box cover 82 is mounted. The cover coupling hole 85 is formed in the same number at positions corresponding to the box coupling protrusion 84 so that the box coupling protrusion 84 can be inserted through the cover coupling hole 85 .

In detail, the cover coupler 85 is a single hole having different vertical widths, and may include the upper opening 851 and the lower opening 852 . The upper opening 851 and the lower opening 852 are connected to each other to form one opening, and differ only in width.

The upper opening 851 is located above the lower opening 852 and is formed to be narrower than the width of the lower opening 852 . In this case, the width of the upper opening 851 is larger than the width of the bent portion 844 and narrower than the width of the restraining portion 845 . Accordingly, while the bent portion 844 is positioned in the upper opening 851 , the box cover 82 can move, but the restraining portion 845 does not pass through the upper opening 851 and is restrained. can be

In addition, the vertical height of the upper opening 851 may be lower than the vertical height of the bent portion 844 . Therefore, even when the box cover 82 is pulled forward in the state in which the box cover 82 is closed as shown in FIG. 6 , the box cover 82 is moved to the box case 81 by the interference of the bent portion 844 . is not easily separated from

Meanwhile, the lower opening 852 may be positioned below the upper opening 851 and may be formed to be larger than a width of the upper opening 851 . That is, the width of the lower opening 852 may be formed to be larger than the width of the restraining part 845 , and thus, the restraining part 845 is opened by lifting the box cover 82 . In a state to be positioned in the box, the end of the box coupling protrusion 84, that is, the restraining part 845 passes through the cover coupling hole 85, that is, the lower opening 852 to attach the box cover 82 to the box case. It becomes possible to separate from (81).

7 is an open perspective view of the control box.

As shown in the drawing, the box cover 82 constituting the control box 80 may be rotated while the box coupling protrusion 84 is inserted into the cover coupling hole 85 , and the box case It becomes possible to become a state hanging on (81).

In detail, the box cover 82 shields the open surface of the box case 81 in the state shown in FIG. 6 . In this state, the user releases the coupling member (S) to release the coupling between the box cover 82 and the fastening part 813, and in this state pulls the box cover 82 forward to release the box cover. After the 82 is spaced apart from the side of the box case 81 , the box cover 82 is rotated.

The box cover can open the box case 81 in a rotated state as shown in FIG. 7 , and the box cover 82 is the box cover ( 82) is suspended perpendicularly to the bottom surface.

And, the outer side of the cover coupler 85 is seated on the second extension 843, and the box cover 82 is maintained in a suspended state. At this time, the bent portion 844 is positioned in the lower opening 852 .

In a state in which the box cover 82 is rotated and opened as shown in FIG. 7 , even if the box cover 82 moves, the box cover 82 is not easily separated by the interference of the bent portion 844 , In order to separate the box cover 82 , the box cover 82 is rotated and separated so that the lower opening 852 passes through the bent portion 844 and the restraining portion 845 .

Hereinafter, a service process of the control box 80 of the indoor unit 1 according to an embodiment of the present invention having the above structure will be described.

8 is an open perspective view of the suction grill according to the embodiment of the present invention. And, Figure 9 is an open perspective view of the control box.

As shown in the drawing, if a service such as inspection or replacement of the PCB 83 is required while the indoor unit 1 is mounted on the ceiling, first remove the suction grill 21 as shown in FIG. 8 . will be open

In order to open the suction grille 21 , the restraints of the suction grille 21 and the front panel 20 are released by manipulating the restraining device 211 . In this state, the opposite side of the restraining device 211 is connected to the hinge device 212 and can be rotated while being connected to the front panel 20 by the hinge device 212 .

By this operation, the suction grill 21 may completely open the panel opening 201 of the front panel 20 , and the inside of the cabinet 10 may be exposed through the panel opening 201 . let it be

In this state, the drain pan assembly 60 and the control box 80 of the cabinet 10 can be exposed through the panel opening 201 , and in particular, the box cover ( 82) can be exposed.

In a state in which the box cover 82 is exposed, the user separates the coupling member S fastened to the box cover 82 . The coupling of the box cover 82 and the fastening part 813 is released through the separation of the coupling member S, and the box cover 82 is in a rotatable state.

When the box cover 82 is mounted, the box coupling protrusion 84 is inserted into the cover coupling hole 85. ) to rotate the box cover 82 in a state where the circumference of the box cover 82 and the circumference of the box case 81 are spaced apart.

The inside of the box case 81 can be completely exposed by the rotation of the box cover 82 . And, the box coupling protrusion 84 is rotated while being inserted into the cover coupling hole 85 , and it is separated from the box case 81 because it still maintains the inserted state in the cover coupling member 85 . It does not do so and maintains a suspended state on the box case 81 .

At this time, since the box coupling protrusion 84 and the cover coupling hole 85 are located on the tip side of the panel opening 201, the box cover 82 does not block the operator's view when the box cover 82 is opened. without exposing the inside of the box case 81 .

In addition, the width of the box cover 82 is formed to be smaller than the width of the panel opening 201 , so that even when the box cover 82 is rotated, the box cover 82 does not interfere with the front panel 20 . will not

On the other hand, when service work such as inspection, replacement, or repair of the PCB 83 is completed by opening the control box 80 , the operator rotates the box cover 82 again to close it, and the coupling member S ) to fix the box cover 82 to the box case 81 .

Finally, the user rotates the suction grill 21 to its original position to shield the panel opening 201 , and the restraining device 211 is constrained to the front panel 20 so that the suction grill (21) is fixedly mounted to the front panel (20).

Claims (11)

cabinets placed inside the ceiling of the room;
a blowing fan provided inside the cabinet;
a heat exchanger disposed to surround the outside of the blowing fan;
a drain pan assembly seated inside the cabinet to form an air flow passage and collecting condensed water generated in the heat exchanger;
a front panel mounted on the opening surface of the cabinet to form an exterior exposed to the ceiling surface, the front panel having a panel opening through which indoor air is sucked and a front panel discharge port through which the heat-exchanged air is discharged;
a suction grill which is mounted to open and close the panel opening and has a suction port through which indoor air is sucked; and
and a control box provided inside the cabinet exposed through the panel opening and shielded by the suction grill,
The control box is
a box case in which the PCB is accommodated; and a box cover configured to open and close the box case and to open and close by rotating with respect to an end side of the panel opening.
A plurality of box coupling protrusions protruding inwardly are formed on the upper end of the box case,
A cover coupling hole into which a box coupling protrusion is always inserted at a position corresponding to the box coupling protrusion is formed on the edge bent at the side end of the box cover,
The box coupling protrusion,
An extension portion extending from the box case and bent upward stepwise, and a restraining portion protruding from an end of the extension portion to both sides of the extension portion to have a greater width than the width of the extension portion,
The cover coupler,
an upper opening that is opened at the rim and is larger than the width of the extension and smaller than the width of the restraint;
The indoor unit of the air conditioner including a lower opening that is larger than a width of the restraining part at a lower part of the upper opening.
The method of claim 1,
and the control box is mounted on the drain pan assembly.
The method of claim 1,
and a control box accommodating part recessed in an outer surface of the drain pan assembly and in contact with one side surface of the cabinet to accommodate the control box.
4. The method of claim 3,
The indoor unit of the air conditioner, wherein the control box is opened at a height corresponding to the opening surface of the cabinet.
5. The method of claim 4,
The indoor unit of the air conditioner, wherein the control box is formed to have a length smaller than a width of the panel opening.
delete delete delete delete The method of claim 1,
The indoor unit of the air conditioner according to claim 1, wherein a hinge device connected to the front panel to rotate the suction grill is provided on the suction grill.
11. The method of claim 10,
The indoor unit of the air conditioner according to claim 1, wherein the suction grill is provided with a restraining device operated from the outside of the suction grill to be selectively restrained with the front panel to selectively couple the suction grill to the front panel.

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