KR20080052973A - Indoor unit for air conditioner - Google Patents

Abstract

An indoor unit for an air conditioner is provided to facilitate the installation of the indoor unit by fixing the indoor unit on the ceiling through an inspection opening perforated on a front panel. An indoor unit for an air conditioner comprises a front panel, a cabinet and an inspection cover(460). A suction hole and an exhaust hole are formed on the front panel to guide suction/exhaust of indoor air. The cabinet is coupled to the front panel to form the upper exterior. The inspection cover is coupled to a lower surface of the front panel to shield a part of the lower surface of the front panel. An end of the inspection cover is hinged to a side of the front panel such that the inspect cover rotates.

Description

Air Conditioner Indoor Unit {Indoor unit for air conditioner}

1 is an exploded perspective view showing the configuration of an indoor unit of a conventional air conditioner.

Figure 2 is a bottom perspective view showing a state in which the front panel is separated from the air conditioner indoor unit according to the present invention.

Figure 3 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner according to the present invention.

Figure 4 is a top perspective view showing a front panel as one configuration of the indoor unit of the air conditioner according to the present invention.

Figure 5 is an exploded perspective view showing a front panel of one configuration of the indoor unit of the air conditioner according to the present invention.

Figure 6 is an exploded perspective view showing a louver motor and louver as one configuration of the indoor unit of the air conditioner according to the present invention.

Figure 7 is a bottom perspective view showing an open state of the inspection cover constituting the main portion in the indoor unit of the air conditioner according to the present invention.

Figure 8a is a longitudinal cross-sectional view showing a state in which the inspection door cover constituting the main portion coupled to the front panel in the indoor unit of the air conditioner according to the present invention in the II 'position of FIG.

Figure 8b is a longitudinal sectional view showing a state in which the checker cover constituting the main portion in the air conditioner indoor unit according to the present invention spaced apart from the front panel.

Figure 9 is a bottom perspective view showing a state in which the inspection cover is separated from the front panel in the air conditioner indoor unit according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Indoor unit 130. Cabinet

132. Mounting bracket 134. Ablation

136. Panel Bracket 137. Fastening Hole

140. Base 142. Air Guide

150. Drain pan 160. Indoor heat exchanger

170. Indoor Fan 172. Fan Motor

180. Orifice 182. Orifice Ball

190. Plasma Filter 192. Filter Bracket

194. Dust Collector Filter 196. Control Box

200. Grill lift means 220. Lift kit

240. Wire 400. Front panel

402. Suction Inlet 404. Suction Grill

405. Air flow hole 406. Outlet

422. Central axis 424. Louver motor

425. Rotating shaft 426. Tightening flange

428. Connector 440. Motor receiving space

442. Compartment rib 444. Mounting boss

445. Shaft insertion hole 446. Inspection opening

448. Panel Flange 448 '. Panel Joining Hole

448 ". Mounting hole 450. Motor cover

460. Inspection Cover 462. Hinge

464. Elastic members 466. Interlocking projections

466'.Hook 467. Turning Guide Hole

468. Release Block 468 '.

469. Block Guide Holes 469 '.

 F. Mounting member

The present invention relates to an indoor unit of an air conditioner, and more particularly, to the indoor unit of the air conditioner to facilitate the installation by performing the installation work through the check hole when fixing the indoor unit to the ceiling to form a perforation opening on the front panel It is about.

In general, an air conditioner is a cooling / heating system that cools a room by a repetitive action of inhaling hot air in a room, exchanging heat with a low temperature refrigerant, and then discharging it into the room. -Condenser-Expansion valve-Evaporator which forms a series of cycles.

Hereinafter, a configuration of a general multi-type air conditioner indoor unit (hereinafter, referred to as 'room') will be described with reference to the accompanying drawings.

Figure 1 is an exploded perspective view showing the configuration of the air conditioner indoor unit according to the prior art.

As shown in the figure, the indoor unit 1 of the air conditioner is mounted so that the upper portion is inserted and fixed inside the ceiling and the lower surface is exposed below the ceiling.

In addition, the indoor unit 1 has a front panel 10 which forms an edge portion of an outer surface of the indoor unit 1, and a suction grill 20 installed in the center of the front panel 10 to allow indoor air to flow into the indoor unit 1. And, to form the upper appearance of the indoor unit (1) and a cabinet (30) having a plurality of parts therein, and to shield the upper surface of the cabinet 30 and at the same time to allow the indoor unit (1) mounted inside the ceiling The overall appearance is formed by the base 40.

The front panel 10 is fastened to the cabinet 30 by a screw or the like, and a discharge hole 12 is formed therein so that the suction grill 20 is mounted therein. The discharge port 12 is to allow the air heat-exchanged in the indoor unit 1 to be discharged back to the room, it is formed in the same shape in the front, rear, left and right of the front panel 10.

In addition, the discharge port 12 is formed with a louver 14 forcing the flow direction of the air discharged into the room through the discharge port 12. The louver 14 has a square plate shape corresponding to the shape and size of the discharge port 12, and is connected to a louver motor (not shown) that generates rotational power to rotate the air flow direction.

In addition, the louvers 14 are configured such that end portions adjacent to each other are connected and interlocked by the joints 16. That is, the joint 16 is connected between the four louvers to operate simultaneously, one of the four joints is coupled to the louver motor.

Therefore, when the louver motor is operated to generate rotational power, the rotational power is transmitted to the joint 16 to rotate the four louvers 14.

A suction grill 20 having a substantially square plate shape is mounted at the center of the front panel 10. The suction grill 20 allows indoor air to be sucked into the indoor unit 1 as described above. Therefore, a plurality of suction ports 22 are formed in the central portion of the suction grill 20 so that the upper and lower portions penetrate in the horizontal direction.

An air filter 50 is provided above the suction grill 20. The air filter 50 is to filter the indoor air sucked into the interior through the inlet 22, is formed of a flexible material and blocks the loading of foreign matter inside the indoor unit (1).

And the drain pan 60 is seated on the upper side of the front panel 10 described above. The drain pan 60 collects condensed water generated when the indoor heat exchanger 70 exchanges air, which will be described below, and has a collecting space 62 open upward.

The drain pan 60 also serves to guide the air introduced into the indoor unit 1 through the suction port 22 to flow upward through the center. In other words, a through hole 64 is formed in the center of the drain pan 60, and through the through hole 64, indoor air can flow to the upper side of the drain pan 60.

An orifice 66 is inserted into the through hole 64. The orifice 66 is for guiding the air below the drain pan 60 to flow to the center portion of the indoor fan 80 to be described below. The orifice 66 has a cylindrical shape penetrated in the up / down direction and has a lower end portion. It spreads outward and has a diameter larger than the upper end.

An indoor heat exchanger 70 is installed above the collecting space 62. The indoor heat exchanger (70) exchanges indoor air purified by the air filter (50), and has a cross section corresponding to the water collecting space (62).

Therefore, the condensed water generated on the outer surface of the indoor heat exchanger 70 during heat exchange of the indoor air flows downward to be collected in the water collecting space 62.

The outer side of the indoor heat exchanger 70 is provided with a cabinet 30 that is coupled to each other a plurality of plates of the indoor unit 1 to form a space therein. The cabinet 30 has an approximately octagonal longitudinal section, the upper end is coupled to the front panel 10 upper surface, and the lower end is coupled to the base support 42 to be described below.

That is, the upper end of the cabinet 30 is inserted into the insertion hole 32 protruding outward so that one side of the base support 42 is inserted and fixed to be combined with the base support 42, the lower part of the indoor unit (1) A plurality of fastening flanges 34 to be fixed to the ceiling are formed.

Therefore, when both ends of the installation member such as a wire (not shown) to the fastening flange 34 and the ceiling, respectively, the indoor unit 1 is supported by the load on the ceiling does not fall.

In addition, an indoor fan 80 is installed at the center of the cabinet 30. The indoor fan 80 is connected to a fan motor 82 that generates rotational power when power is applied, and is rotated at a high speed by receiving rotational power from the fan motor 82.

Therefore, when the fan motor 82 is rotated to force the air flow inside the indoor unit 1, the indoor air is sucked through the inlet 22, and the indoor air sucked through the inlet 22 is After heat exchange by the heat exchanger 70 is guided by the cabinet 30 to be discharged to the discharge port (12).

The fan motor 82 is regulated in flow by the motor mount 84. That is, the motor mount 84 is accommodated so that the flow of the upper part of the fan motor 82 is regulated, and the motor mount 84 is fixedly mounted to the center of the bottom surface of the base 40 described above. Therefore, the fan motor 82 can rotate at a high speed in a state in which the flow is regulated inside the indoor unit 1.

Meanwhile, a base support 42 is provided between the base 40 and the cabinet 30. The base support 42 is configured to prevent deformation of the base 40 due to the load when the load of the fan motor 82 and the indoor fan 80 is supported by the base 40.

However, the prior art having the above configuration has the following problems.

That is, in order for the front panel 10 to be fixed to the cabinet 30, a gypsum board forming a ceiling must be separated, and an operator fastens the front panel 10 and the cabinet 30 with a screw or the like. The upper body must be pushed through the gap where the gypsum board is separated. Therefore, the installation work is inconvenient.

In addition, after the indoor unit is completely installed, if the height of the front panel and the ceiling does not match, it is necessary to adjust the step, for this is possible by tearing off the gypsum board. Therefore, there is a problem that the serviceability is lowered.

Therefore, an object of the present invention for solving the above problems, the indoor unit of the air conditioner to facilitate the installation by performing the installation work through the inspection hole when fixing the indoor unit to the ceiling by forming a perforation opening on the front panel It is to offer.

Another object of the present invention is to provide an indoor unit of an air conditioner to improve serviceability by providing an access door cover for selectively opening and closing the access door by rotating with respect to one side of the front panel.

The indoor unit of the air conditioner according to the present invention includes a front panel which is formed with an inlet and an outlet to guide the intake / discharge of indoor air; A cabinet which is combined with the front panel to form an upper appearance and has a plurality of components embedded therein; It is coupled to one side of the lower surface of the front panel has a configuration including a checker cover for shielding a portion of the lower surface of the front panel, the checker cover is characterized in that the one end is coupled to one side of the front panel to be opened and closed.

One side of the front panel, it characterized in that the check hole is provided so that the upper portion of the front panel communicates with the lower portion.

The inspection port cover is characterized in that coupled to the lower side of the inspection port to shield the inspection port.

The check port cover is characterized in that coupled to the front panel and the hinge.

One side of the hinge is characterized in that it is provided with an elastic member for generating an elastic force at the same time the cover cover and the front panel.

One side of the check port cover, characterized in that the locking projection is inserted into one side of the front panel and the locking projection to limit the rotation of the check port cover.

On one side of the front panel, a projection guide hole perforated to accommodate the locking projections, a block guide hole communicating with the projection guide hole and receiving and constraining one side of the locking projections, and sliding in the block guide hole; And a release block for selectively canceling the restraint of the locking projection and the block guide hole.

On one side of the outer surface of the cabinet, an installation bracket coupled to a fixing member having an upper end fixed to a ceiling to maintain the cabinet at a predetermined height with respect to the ceiling, and coupled to one side of the front panel so that the front panel is fixed to the cabinet. It characterized in that the panel bracket is provided.

The installation bracket and the panel bracket, characterized in that located on the upper side of the inspection port.

According to the present invention configured as described above, there is an advantage that the installation and service of the indoor unit is easy.

Hereinafter, with reference to the accompanying drawings, the configuration of the indoor unit of the air conditioner according to the present invention will be described in detail.

Figure 2 is a bottom perspective view showing a state in which the front panel is separated from the air conditioner indoor unit according to the present invention, Figure 3 is an exploded perspective view showing the internal configuration of the air conditioner indoor unit according to the present invention.

As shown in the figure, the indoor unit 100 of the air conditioner is installed so that the upper side is located inside the ceiling to expose the lower side, and is suspended by being coupled with the lower end of the installation member (F) whose upper end is fixed to the upper ceiling. Will be maintained.

The indoor unit 100 has a front panel 400 which forms an edge portion of the lower surface, a suction grill 404 installed in the center of the front panel 400 to allow indoor air to flow into the indoor unit 100; The cabinet 130 forms an upper appearance of the indoor unit 100 and includes a plurality of parts therein, and loads a plurality of parts mounted inside the indoor unit 100 while shielding the upper surface of the cabinet 130. The overall appearance is formed by the base supporting the reference numeral 140 of FIG.

The front panel 400 has a rectangular plate shape in which a center portion is perforated in a quadrangular shape, and a suction port 402 is provided at the center portion of the front panel 400. The suction port 402 guides the indoor air to flow into the indoor unit 100, and the suction grill 404 selectively filters foreign substances contained in the air flowing into the indoor unit 100 inside the suction port 402. Is provided.

The suction grill 404 is formed in a size corresponding to the suction port 402 in order to prevent the air containing the foreign matter into the indoor unit 100, and included in the air on the upper surface of the suction grill 404 It is preferable that an air filter (not shown) is installed to selectively filter the foreign matter.

The air filter is formed of a flexible material, and a fine hole (not shown) is perforated in the entire surface. Therefore, the foreign matter in the air introduced into the indoor unit 100 through the suction port 402 remains without passing through the micropores and is attached to the lower surface of the air filter (not shown) so that the foreign material is inside the indoor unit 100. Loading is prevented beforehand.

In addition, the suction grill 404 serves to guide the indoor air to be introduced into the indoor unit 100, and for this purpose, an air flow hole is long at equal intervals on the front surface of the suction grill 404. 405 is formed.

The air flow hole 405 is formed to penetrate the suction grill 404 in the vertical direction, and is configured such that the space in the center of the indoor unit 100 communicates with the room.

Therefore, when the indoor unit 100 is operated, indoor air may be introduced into the indoor unit 100 through the air flow hole 405.

And, the front / rear left / right of the front panel 400 is formed with a discharge port 406 of a long horizontal shape. The discharge port 406 is configured to guide the indoor air sucked into the indoor unit 100 through the suction port 402 to be discharged back to the room, and the interior of the indoor unit 100 communicates with the room. .

The front panel 400 is a main configuration of the present invention will be described in detail below.

The drain pan 150 is provided above the front panel 400. The drain pan 150 is configured to collect the condensed water generated on the outer surface of the indoor heat exchanger 160 when the refrigerant passing through the interior of the indoor heat exchanger 160 and the indoor air heat exchange will be described below. It is formed larger than the outer size of the indoor heat exchanger (160).

In addition, an upper surface of the drain pan 150 is recessed downward to form a collecting space (not shown) in which condensate is collected, and the lower end of the indoor heat exchanger 160 is accommodated and seated inside the collecting space. The condensed water formed on the outer surface of the heat exchanger 160 flows downward to be accommodated in the collecting space (not shown).

In addition, the drain pan 150 also serves to guide the air purified by the air filter (not shown) to flow upward through the drain pan 150.

That is, the through hole 154 is drilled in the center of the drain pan 150. Therefore, the indoor air can flow upward through the inlet 402 and the through hole 154.

An indoor heat exchanger 160 is installed on the upper surface of the drain pan 150, and more specifically, on the upper side of the collecting space (not shown). The indoor heat exchanger 160 is for heat-exchanging the indoor air purified by an air filter (not shown), and the refrigerant that heat-exchanges with the indoor air flows therein.

In addition, the indoor heat exchanger 160 is bent in a substantially "wh" shape when viewed from above. More specifically, the indoor heat exchanger 160 has a shape in which the elongated tube is bent a plurality of times in order to increase the heat exchange area with air, and is generally rectangular in shape.

Therefore, the indoor air flowing upward through the through hole 154 is forced to flow in the front and rear / left and right directions to exchange heat with the indoor heat exchanger 160, the outer surface of the indoor heat exchanger 160 during the heat exchange process Condensate generated in the water is collected in the collecting space (not shown).

The above-described cabinet 130 is provided outside the indoor heat exchanger 160. The cabinet 130 is octagonal when a plurality of plates are coupled to each other when viewed from above, and forms the exterior of the indoor unit 100 front and rear, shielding the inside of the indoor unit 100.

Then, the lower end of the cabinet 130 is coupled in contact with the upper edge of the front panel 400, the upper end is coupled to the lower surface of the base 140 to be described below.

Therefore, when the base 140 and the front panel 400 are coupled to the upper and lower ends of the cabinet 130, a space is formed inside the indoor unit 100 so that a plurality of parts can be built.

Installation brackets 132 are provided on the front / rear and left / right sides of the cabinet 130 so as to be coupled to the lower end of the installation member (F). The mounting bracket 132 is formed by bending a plate and cutting one side of the upper end. When the lower end of the installation member F is coupled to the cutout 134 thus formed, the remaining parts except for the front panel 400 are It is suspended from the ceiling.

The lower side of the installation bracket 132, that is, the lower end of the cabinet 130 is provided with a panel bracket 136 protruding in the outward direction. The panel bracket 136 has a substantially rectangular plate shape and a fastening hole 137 for fastening a fastening member such as a screw is formed therein.

In addition, the fastening hole 137 is fastened by a panel flange (refer to FIG. 4) and a fastening member which will be described below. Accordingly, when the panel bracket 136 and the panel flange are coupled by the fastening member, the front panel 400 is supported by the cabinet 130.

An air guide 142 is provided between the cabinet 130 and the indoor heat exchanger 160. The air guide 142 has a hollow rectangular tube shape to prevent the air heat-exchanged with the refrigerant from leaking out of the cabinet 130 while flowing outward from the inside of the indoor heat exchanger 160.

Therefore, the cross-sectional size of the air guide 142 is preferably larger than the indoor heat exchanger 160 and smaller than the front panel 400.

In addition, an indoor fan 170 is installed at the center of the cabinet 130. The indoor fan 170 is configured to force the air flow in conjunction with the fan motor 172 that generates a rotational power when the power is applied, generates a suction force in the upper direction to the center portion and from the inner side to the outer circumferential direction Will generate wind power.

Therefore, when the indoor fan 170 receives the rotational power from the fan motor 172 and rotates at a high speed, the suction force generated at the lower side is transmitted to the through hole 154 and the suction port 402 to suck the indoor air. It becomes possible.

In addition, the indoor air sucked into the center portion of the indoor fan 170 is blown toward the outer circumferential surface to pass through the indoor heat exchanger 160, thereby performing heat exchange by the refrigerant.

On the other hand, the orifice 180 is provided on the lower side of the indoor fan 170, more specifically, inside the through hole 154. The orifice 180 serves to guide the air flowing upward from the lower side of the drain pan 150 to the center portion of the indoor fan 170, and has a cylindrical shape that increases in diameter downward. The lower end is coupled to be on the same plane as the bottom of the drain pan 150.

In addition, an orifice hole 182 is formed inside the orifice 180 to guide the air below the drain pan 150 to penetrate the drain pan 150.

The inner diameter of the orifice hole 182 is formed to be slightly smaller than the outer diameter of the indoor fan 170, and is configured such that the indoor fan 170 is located inside the orifice hole 182.

Therefore, when the indoor fan 170 rotates to generate a suction force to the lower side, the air of the lower side based on the drain pan 150 flows upward along the orifice hole 182 to the indoor fan 170. Inflow to the center of the

The plasma filter 190 is provided on the lower left side of the orifice 180. The plasma filter 190 generates a plasma to charge and adsorb foreign substances contained in the air, and the front and rear ends thereof are coupled to one side of the bottom surface of the orifice 180 by a fastening member.

To this end, a filter bracket 192 is provided above the plasma filter 190. The filter bracket 192 prevents the plasma filter 190 from being separated by generating a restraining force in a state in which the plasma filter 190 is accommodated therein, and the filter bracket 192 is disposed on the bottom surface of the orifice 180. Combined.

Therefore, the plasma filter 190 constrained by the filter bracket 192 is supported by the filter bracket 192 without falling down as the filter bracket 192 is coupled to the orifice 180. It is possible to maintain a certain position.

In addition, a dust collecting filter 194 is further provided between the filter bracket 192 and the plasma filter 190. The dust collecting filter 194 is used to filter out fine foreign matter that has not been removed once even though the secondary filter is filtered to the air filter (not shown) and the plasma filter 190, and selectively from the filter bracket 192. It is detachably mounted.

Therefore, the indoor air purified in three stages through the air filter, the plasma filter 190, and the dust collecting filter 194 does not generate foreign matter loading in the indoor unit 100, thereby making the room more comfortable. do.

The control box 196 is provided on the lower right side of the orifice 180. The control box 196 is a configuration for controlling the operation of the indoor unit 100, a space of a predetermined size is formed inside the printed circuit board 198 is generally embedded.

On the other hand, the left and right of the lower surface of the orifice 180 is provided with a grill lifting means (200 of FIG. 3). The grill lifting means 200 is for selectively lifting the suction grill 404, is installed between the orifice 180 and the front panel 400, by a separately provided kit bracket (not shown) It is fixed to the orifice 180.

The grill lifting means 200 is a plurality of lifting kits 220 for forcing the up / down flow of the suction grill 404 to generate a large rotational power, and the lower end is coupled to the suction grill 404 Lifting kit 220 is configured to include a wire 240 for transmitting the generated rotational power to the suction grill (404).

Therefore, when the lifting kit 220 pulls the wire 240, the suction grill 404 flows upward to shield the suction port 402, and the lifting kit 220 wires 240. When the length of the inlet 402 is maintained in an open state.

Hereinafter, the configuration of the front panel 400 will be described in detail with reference to FIGS. 4 to 6.

4 and 5 are a top view and an exploded perspective view showing a front panel which is one configuration of the air conditioner indoor unit according to the present invention, and FIG. 6 is an exploded view showing a louver motor and louver which is one configuration of the indoor unit of the air conditioner indoor unit according to the present invention. Perspective view.

As shown in these drawings, the louver 420 is mounted inside the discharge port 406 to force the flow direction of air discharged into the room through the discharge port 406. The louver 420 has a substantially square plate shape corresponding to the shape and size of the discharge port 406 and is rotatably installed based on both ends.

That is, at both ends of the louver 420, a central axis (422 shown in FIG. 6) is formed to protrude in the longitudinal direction to serve as the rotation center of the louver 420, and the left side is spaced apart from the central axis 422 A louver motor 424 is provided. In addition, a connector 428 is provided between the louver motor 424 and the central shaft 422 so that the rotation shaft 425 of the louver motor 424 may be connected to the central shaft 422.

The connector 428 has an inner side open to the left and right, and the rotation shaft 425 and the center shaft 422 are inserted and fixed to the left and right sides of the connector 428. Therefore, when the louver motor 424 generates rotational power, the rotational power is transmitted to the central axis 422 through the connector 428, so that the louver 420 is rotatable.

A fastening flange 426 is provided on the outer circumferential surface of the louver motor 424. The fastening flange 426 is formed so that the louver motor 424 is mounted on one side of the upper surface of the front panel 400, a pair is provided and is fastened to the mounting boss 444 by the fastening member to be described below. .

The louver motor 424 is provided in a quantity corresponding to the louver 420 as shown in FIG. 4, and the plurality of louver motors 424 are installed to be selectively operable. That is, one louver motor 424 is coupled to one louver 420, and the plurality of louvers 420 may be independently operated by selectively operating the plurality of louver motors 424.

More specifically, only one of the four louver motors 424 may be operated so that only one louver 420 axially coupled thereto may be repeatedly rotated by a predetermined angle, and all four louver motors 424 may be operated to operate all louvers ( 420 may be rotated.

As a result, when the upper surface of the louver 420 and the air discharged through the discharge port 406 come into contact with each other, the contact angle between the louver 420 and the discharged air is changed by the rotation of the louver motor 424 so that the louver ( 420 forces the discharge air to be discharged in various directions.

A motor accommodation space (reference numeral 440 of FIG. 5) is provided at the upper left / right corner of the front panel 400. The motor accommodation space 440 is fixed where the louver motor 424 is accommodated, and the motor accommodation space 440 is partitioned from the upper space of the front panel 400 by a partition rib 442.

That is, the motor accommodating space 440 of the compartment rib 442 protrudes upright from the upper left / right edge of the front panel 400 with a predetermined height in an upright direction, and one side of the compartment rib 442. It is provided with a mounting boss 444 protruding orthogonal to the compartment rib 442.

The mounting boss 444 allows the fastening flange 426 to be fastened in surface contact, and has a cylindrical shape having a predetermined height.

Therefore, when the fastening flange 426 is fastened to the mounting boss 444, the louver motor 424 is located in the motor accommodating space 440, thereby restricting the flow.

A shaft insertion hole 445 is provided between the pair of mounting bosses 444 to guide the insertion position of the rotary shaft 425. The shaft insertion hole 445 is formed to be perforated in the partition rib 442 so that the rotating shaft 425 is rotatable, and is formed to have a diameter larger than the diameter of the rotating shaft 425.

More specifically, the diameter of the shaft insertion hole 445 is formed larger than the outer diameter of the connector 428. Therefore, when the rotary shaft 425 is positioned inside the shaft insertion hole 445 in a state in which the rotary shaft 425 is coupled with the connector 428, the right end of the connector 428 is the central axis 422 of the louver 420. The rotational power generated by the louver motor 424 may be transmitted to the louver 420 when coupled with the louver motor 424.

The central portion of the motor accommodation space 440 is provided with a check hole 446 formed to penetrate the front panel 100 in a triangular shape. The check hole 446 allows the extension of a driver or the like to be inserted when the front panel 400 is to be removed from the cabinet 130 to check the indoor unit 100, and the lower side of the panel bracket 136. Located in

A panel flange 448 is provided at one side of the inner wall surface of the check hole 446. The panel flange 448 has a substantially rectangular shape, protrudes into the inspection opening 446, and is configured such that the front panel 400 is coupled to and fixed to the cabinet 130.

To this end, a panel coupling hole 448 'is provided in an elliptical shape at substantially the center of the panel flange 448. Therefore, when the panel coupling hole 448 'and the fastening hole 137 are fastened by the fastening member, the front panel 400 is not separated from the cabinet 130.

The motor cover 450 is provided above the motor accommodating space 440. The motor cover 450 is configured to shield the opened upper portion of the motor accommodating space 440, and is formed to have a shape similar to that when the motor accommodating space 440 is viewed from the top, and covers the motor cover 450. The motor cover 450 is fixed by fastening an end portion of the fastening member that penetrates to one side of the bottom surface of the motor accommodation space 440.

The motor escape groove 452 is formed on the upper surface of the motor cover 450. The motor escape groove is for accommodating an upper portion of the louver motor 424 to avoid interference between the louver motor 424 and the motor cover 450, and is formed larger than the upper outer size of the louver motor 424. It is recessed upward from the bottom surface of the motor cover 450.

Therefore, when the opened upper surface of the motor accommodating space 440 is shielded by the motor cover 450, even if the diameter of the louver motor 424 is structurally larger than the height of the partition rib 442, the louver motor ( The upper portion of 424 is accommodated in the motor escape groove 452 so as not to interfere.

On the other hand, the inspection port 446 and the lower side of the motor accommodating space 440 is provided with the inspection cover 460.

The check hole cover 460 has a substantially pentagonal shape and is coupled to an edge portion of the front panel 400 to form a part of an exterior of the indoor unit 100, as well as to shield the open check hole 446. The lower surface of the front panel 400 is installed to be rotated in a downward direction relative to one end.

Hereinafter, the coupling structure of the checker cover and the front panel will be described in detail with reference to FIGS. 7 and 8A. FIG. 7 is a bottom perspective view showing an open state of a check hole cover forming a main part in an indoor unit of an air conditioner according to the present invention, and FIG. 8A is a front view showing a check hole cover forming a main part in an indoor unit of an air conditioner according to the present invention. The combined view is a longitudinal cross-sectional view shown in the II 'position of FIG.

As shown in FIG. 7, a hinge 462 is provided at the right end of the check hole cover 460. The hinge 462 is coupled to the lower surface of the front panel 400 to allow the inspection door cover 460 to be rotatable. When the inspection door cover 460 is rotated based on the hinge 462, the inspection hole ( 446 is shielded by the access cover 460.

An elastic member 464 is provided at the center of the hinge 462. The elastic member 464 is to generate an elastic force in a state in which the upper (outside in Figure 7) the outer peripheral surface of the left / right contact with the lower surface of the access port cover 460 and the front panel 400, the access port cover ( 460 is configured to generate greater elastic force when approaching front panel 400.

Therefore, unless the external force is applied to the check hole cover 460, the check hole cover 460 is elastically supported by the elastic member 464 to maintain a state of opening based on the hinge 462.

A locking protrusion 466 protrudes upward from the left side of the check port cover 460. The locking projection 466 is to check the cover cover 460 to one side of the front panel 400, has a substantially rectangular parallelepiped shape, the upper surface of the hook 466 'having a triangular longitudinal cross-sectional shape protrudes obliquely.

And the corner portion of the front panel 400 is a projection guide hole 467 perforated so that the engaging projection 466 is accommodated therein, the right side of the projection guide hole 467 is terminated as shown in Figure 8a Block 468 is provided.

The protrusion guide hole 467 is drilled to have a width larger than the cross section of the locking protrusion 466 and the hook 466 'so that the locking protrusion 466 and the hook 466' can be inserted into the inside. As it is, the front panel 400 is drilled up and down.

In addition, the release block 468 is inserted into the block guide hole 469 drilled in the right direction from the inner right center of the projection guide hole 467 is inserted into the left / right direction by sliding the inspection cover 460 and the front It is for canceling the restraint of the panel 400, and is formed longer than the left / right length of the block guide hole 469.

Therefore, when the hook 466 'is inserted into the block guide hole 469 and the downward flow is constrained, the release block 468 is pushed to the right by the right end of the hook 466' so that the right end is Protruding out of the front panel 400, when the release block 468 is pushed to the left side the hook 466 'is bent to the left by contacting the left end of the release block 468 to the block guide hole ( 469) Restraint.

The block confinement protrusion 469 ′ is provided above the block guide hole 469. The block binding protrusion 469 ′ is inserted into the upper portion of the release block 468 to interfere with the left / right side to prevent the release block 468 from escaping from the left / right direction.

In addition, the upper surface of the release block 468 is provided with a projection receiving groove (468 ') is recessed in the downward direction is inserted into the block binding projection (469'). The protrusion accommodating groove 468 'is recessed the same as or deeper than the top / bottom length of the block binding protrusion 469' and has a width wider than the left / right width of the block binding protrusion 469 '.

Therefore, when the right side of the block binding protrusion 469 'and the inner right side of the protrusion accommodation groove 468' interfere with the left side block, the release block 468 is restricted from the left side of the block binding protrusion 469 '. When the inner left side of the projection receiving groove 468 'is in contact with the release block 468 is prevented from being separated from the block guide hole 469 to the outside.

Hereinafter, the operation of the air conditioner indoor unit 100 having the above configuration will be described with reference to FIGS. 2 and 3.

First, when power is applied to the indoor unit 100, the fan motor 172 receives power to generate rotational force, and the rotational force generated by the fan motor 172 rotates the indoor fan 170 to flow air. Will be generated.

That is, the suction force in the upper direction is generated to the lower central portion of the indoor fan 170, and the wind power is generated in the outer circumferential direction.

Therefore, the suction force generated in the lower side of the indoor fan 170 is transmitted to the suction grill 404 so that the indoor air is forced into the indoor unit 100. The indoor air sucked into the indoor unit 100 is filtered by an air filter (not shown) after passing through the suction port 402.

Thereafter, the air filtered by the air filter is filtered again by the plasma filter 190 and the dust collecting filter 194, and the purified indoor air is guided by the orifice hole 182 to the indoor fan 170. It flows into the inner center. The air introduced into the indoor fan 170 is forced to blow toward the outer circumferential surface, and is cooled by heat exchange with the indoor heat exchanger 160.

The indoor air cooled by this process is guided by the air guide 142 and the base 140 and is discharged into the room through the discharge port 406. Of course, the louver 420 is rotated by a predetermined angle to guide the discharge to the corner of the room by interfering with the discharge air.

At this time, the louver 420 may be independently operated by the selective operation of the louver motor 424 corresponding thereto.

Hereinafter, a process of opening the check hole 446 will be described with reference to FIGS. 8A and 8B.

The hook 466 ′ is inserted into the block guide hole 469 while the check hole 446 is shielded by the check hole cover 460, and the release block 468 has a right end at the front panel 400. The right end of the protruded outward state. In addition, the elastic member 464 is elastically supporting the front panel 400 and the check hole cover 460 to be spaced apart from each other by generating an elastic force.

At this time, the user applies a force in the left direction to the right side of the release block 468. The release block 468 received the force flows to the left side and pushes the hook 466 'to the left side, and the hook 466' pushed to the left side by the release block 468 is the hook protrusion 466. The upper portion is bent to the left side and exits from the inside of the block guide hole 469.

At the same time, the hook 466 ′ is in a state located inside the projection guide hole 467, and the mounting hole cover 460 is in a state of receiving a clockwise elastic force by the elastic member 464. We will meet together.

When the check opening cover 460 is rotated by the above process, the lower side of the check opening 446 is completely opened. At this time, the panel flange 448 located inside the inspection opening 446 and the installation bracket 132 located above the inspection opening 446 are visible through the inspection opening 446.

Accordingly, when the fastening member is removed by inserting a tool such as a driver through the check hole 446, the front panel 400 and the cabinet 130 may be separated. And, by adjusting the length of the installation member (F) through the inspection port 446 it is possible to put the height of the front panel 400 and the ceiling (reference numeral H in FIG. 9) on the same plane.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications may be made based on the present invention to those skilled in the art within the above technical scope.

In the indoor unit of the air conditioner according to the present invention having the configuration as described above, it is configured to allow the installation work through the inspection opening when fixing the indoor unit to the ceiling by forming a perforation opening on the front panel.

Therefore, there is an advantage that the installation operation of the indoor unit and the coupling operation of the cabinet and the front panel is easy.

In addition, in the present invention, the inspection opening cover is rotatably installed on the lower side of the inspection opening, is elastically supported by the elastic member is configured to open automatically.

Therefore, since the opening of the inspection door is possible without removing the entire front panel from the indoor unit, the service time is remarkably shortened, and the opening process of the inspection door is simplified, so the convenience of use is improved.

Claims (9)

A front panel formed with a suction port and a discharge port for guiding suction / ejection of indoor air; A cabinet which is combined with the front panel to form an upper appearance and has a plurality of components embedded therein; It is coupled to one side of the lower surface of the front panel has a configuration including a checker cover for shielding a portion of the lower surface of the front panel, The checker cover is an indoor unit of the air conditioner, characterized in that the one end is coupled to one side of the front panel to rotate open and close. According to claim 1, One side of the front panel, The indoor unit of the air conditioner is punctured in the up / down direction is provided with a check hole for communicating the upper portion of the front panel with the lower portion. The method of claim 2, wherein the access port cover, The indoor unit of the air conditioner is coupled to the lower side of the inspection door to shield the inspection door. The indoor unit of an air conditioner according to claim 2, wherein the check hole cover is coupled to the front panel by a hinge. The indoor unit of an air conditioner according to claim 4, wherein one side of the hinge is provided with an elastic member for simultaneously generating an elastic force on the cover and the front panel. According to claim 5, One side of the access port cover, The indoor unit of the air conditioner, characterized in that the locking projection is inserted into one side of the front panel and the locking projection is restricted so that the rotation of the check opening cover. According to claim 6, One side of the front panel, A projection guide hole drilled to accommodate the locking projections; A block guide hole communicating with the protrusion guide hole and receiving and constraining one side of the locking protrusion; An indoor unit of the air conditioner, characterized in that the release block for sliding the inside of the block guide hole to selectively release the restraint of the locking projection and the block guide hole. According to claim 1, At one side of the outer surface of the cabinet, An installation bracket coupled to a fixing member having an upper end fixed to a ceiling to maintain the cabinet at a predetermined height with respect to the ceiling; Indoor unit of the air conditioner is coupled to one side of the front panel is provided with a panel bracket for fixing the front panel to the cabinet. The method of claim 8, wherein the mounting bracket and the panel bracket, Indoor unit of the air conditioner, characterized in that located on the upper side of the inspection opening.

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