KR20070066393A - Housing of indoor unit for ceiling duct type air conditioner - Google Patents

Abstract

A blower fan housing of an indoor unit of a ceiling duct type air conditioner is provided to couple upper and lower housing parts by shape-matching without using any additional coupling elements, and carry out coupling and decoupling between the upper and lower housing parts in the vertical direction for improving service performance in the case of malfunction of the indoor unit. A blower fan housing of an indoor unit of a ceiling duct type air conditioner includes an upper housing part(320) attached to an inside of the indoor unit at least at a side, a lower housing part(340) shape-matched with the upper housing part for partially covering the upper housing part to form an air outlet path. The upper and lower housing parts are formed with holding elements(349) and restraining elements(329) coupled with each other by elastic restoring force not to be separated from each other. The upper and lower housing parts are formed with guide protrusions(325,346) and protrusion receiving grooves(326,345) at a side for guiding coupling positions thereof in the process of the shape-matching.

Description

Housing of Indoor unit for Ceiling duct type air conditioner}

1 is a schematic view showing a state in which the indoor unit of the air conditioner is mounted.

Figure 2 is an exploded perspective view showing the configuration of the indoor unit of the air conditioner according to the prior art.

Figure 3 is a rear perspective view showing the appearance of the housing of the air conditioner indoor unit according to the prior art.

Figure 4 is a bottom perspective view showing the external configuration of the air conditioner indoor unit employing a preferred embodiment of the present invention.

Figure 5 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner employing a preferred embodiment of the present invention.

Figure 6 is a perspective view showing the appearance of the housing of the air conditioner indoor unit according to the present invention.

Figure 7 is an exploded perspective view showing a disassembled housing of the air conditioner indoor unit according to the present invention.

Figure 8 is a top perspective view showing the appearance of the lower housing constituting the main portion in the housing of the air conditioner indoor unit according to the present invention.

Figure 9 is a longitudinal sectional view showing a state in which the housing of the air conditioner indoor unit is coupled to the present invention.

Explanation of symbols on the main parts of the drawings

100. Indoor unit 102. Intake port

104. Top panel 106. Side panel

108. Bottom panel 108 '. Front panel

108 ". Rear panel 109. Bent surface

120. Barrier 122. Air Flow Hole

130. Heat exchanger 140. Insulation member

150. Drain pan 160. Filter assembly

162. Filters 164. Filter Frames

166. Elastic Hook 170. Control Box

200. Blower 220. Blower fan

240. Motor 242. Motor shaft

260. Motor Bracket 262. Motor Seat

300. Housing 310. Exhaust flow path

320. Upper housing 322. Joining piece

322 '. Fasteners 324. Wire fasteners

325,346. Guide protrusion 326,345. Protrusion receiving groove

327,347. Sealing rib 329. Restraints

329 '. Hook insertion hole 340. Lower housing

342. Hook 349. Hook

349 '. hook

The present invention relates to an air conditioner, and more particularly, an air conditioner indoor unit in which a housing for accommodating a blower fan and guiding a flow direction of air forced by the blower fan is configured to be formed without a separate coupling member. Of the housing.

In general, an air conditioner is a cooling / heating device installed in an indoor space, such as an office or a home, to cool or heat a room. The air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator.

In particular, an air conditioner is an outdoor unit (sometimes called an 'outdoor' or a 'heat sink') mainly installed outdoors, and an indoor unit (also called an 'indoor' or 'heat absorbing side') mainly installed inside a building. The outdoor unit is provided with a condenser (outdoor heat exchanger) and a compressor, and the indoor unit is provided with an evaporator (indoor heat exchanger).

As is well known, an air conditioner may be broadly divided into a separate type air conditioner in which the outdoor unit and the indoor unit are separately installed, and an integrated air conditioner in which the outdoor unit and the indoor unit are integrally installed.

The indoor unit of the separate type air conditioner is divided into a frame type, a wall type, a stand type, a ceiling duct type, and the like according to the installed position or shape, and the various indoor units are connected to an outdoor unit (not shown) by a refrigerant pipe (not shown). As a result, the refrigerant cycle can be achieved.

As shown in Figure 1, the indoor unit (hereinafter referred to as 'indoor') of the air conditioner is fixedly installed above the ceiling (W) of the room, and is configured to suck the indoor air and discharge it after heat exchanged the sucked indoor air do. Therefore, the suction port (not shown) and the discharge port (refer to reference numeral 13 in FIG. 2) are formed in each of the two sides.

The suction duct S is connected to the suction port (not shown), and the right end of the suction duct S passes through the ceiling W to communicate with the room. A discharge duct B is connected to the discharge port 13, and the left end of the discharge duct B passes through the ceiling W like the suction duct S and communicates with the room.

Therefore, indoor air can be introduced into the indoor unit 1 through the suction duct S, and the introduced indoor air is discharged back into the room through the discharge duct B after heat exchange in the indoor unit 1. The indoor air can be harmonized.

Hereinafter, the indoor unit configuration of the air conditioner will be described with reference to the accompanying drawings.

2 is an exploded perspective view showing the configuration of the air conditioner indoor unit according to the prior art, and FIG. 3 is a rear perspective view showing the housing of the air conditioner indoor unit according to the prior art.

As shown in these figures, the indoor unit 1 has an outer shape of a substantially rectangular parallelepiped shape, and its appearance is formed by a plurality of panels.

That is, the upper panel 12 forming the upper surface of the indoor unit 1, the side panel 14 forming the left / right side, the front panel 15 forming the front appearance, and the lower panel forming the bottom surface The exterior is formed by a rear panel (not shown) forming the 16 and the rear rim.

The control box 20 is attached to the right side of the side panel 14. The control box 20 is for controlling the operation of the indoor unit 1 and the outdoor unit, and a plurality of electrical components and a printed circuit board (PCB) are embedded therein.

The front panel 15 shields the front of the indoor unit 1 and guides the discharge of air via the interior of the indoor unit 1. To this end, discharge holes 13 are formed in the left and right sides of the front panel 15, and the discharge holes 13 are connected to the discharge duct B described above.

The lower panel 16 shields the lower surface of the indoor unit 1 such that the inside of the indoor unit 1 does not look inside when looking up at the indoor unit 1 mounted on the ceiling, and is configured to be selectively opened in the event of a failure of the indoor unit 1. do.

Therefore, the lower panel 16 is formed of a rectangular lower surface front panel 16 'and a lower rear panel 16 "having a size slightly larger than the lower front panel 16'. When the 16 "is selectively separated from the indoor unit 1, the inside of the indoor unit 1 is exposed and service is possible.

The rear panel (not shown) is formed to be perforated at the center except for upper, lower, left and right edges, and forms a part of the rear exterior of the indoor unit 1 as described above. In addition, the perforated central portion of the rear panel forms a suction port (not shown) to allow the indoor air to flow into the indoor unit (1).

Therefore, when the suction duct S is connected to the suction port (not shown) to prevent air leakage, the air in the indoor space is guided by the suction duct S so as to be introduced into the indoor unit 1.

On the other hand, the filter 30 is provided on the rear side of the rear panel (not shown). The filter 30 is for filtering foreign substances in the air introduced into the indoor unit 1, and a fine hole is formed in the front surface of the front surface, and a filter frame formed by bending a narrow metal plate squarely at the edge ( 32) is firmly combined.

Therefore, the filter 30 is supported by the filter frame 32 to prevent deformation caused by the air passing through at a high speed.

In addition, the filter 30 is fixed by the filter bracket 40 and fixed to the front of the rear panel. The filter bracket 40 is formed by bending a horizontally long iron plate in the vertical direction a plurality of times as shown in FIG. 3, and restrains the upper and lower surfaces of the filter frame 32 from restraining separation.

" 형상의 종단면을 가지는 상부브라켓(42)과, 후면판넬의 전면 하부 일측에 부착되고, 우측에서 볼 대 대략 "

" 형상의 종단면을 가지는 하부브라켓(44)을 포함하여 구성된다.That is, the filter bracket 40 is attached to each of the left and right sides of the upper front of the rear panel (not shown), each viewed approximately "

"Is attached to the upper bracket 42 having a longitudinal cross-section, one side of the lower front of the rear panel, the ball on the right approximately"

And a lower bracket 44 having a longitudinal cross section.

Accordingly, when the upper right side of the upper bracket 42 and the lower right side of the lower bracket 44 are attached to the front of the rear panel (not shown), the upper bracket 42 and the lower bracket 44 face each other. Opening in the direction.

When the filter 30 is fitted between the upper bracket 42 and the lower bracket 44, the filter 30 has the filter frame 32 constrained by the upper and lower ends of the filter frame 40. It is possible to flow only in the left and right directions.

The heat exchanger 50 is installed in front of the filter 30. The heat exchanger (50) heat exchanges the air sucked into the indoor unit (1) through an inlet (not shown). The heat exchanger (50) has a large contact area with the air by being inclinedly mounted in the indoor unit (1).

The lower side of the heat exchanger 50 is provided with a drain pan 60, the upper surface of which is recessed downward. The heat exchanger 50 generates condensate on the outer surface during heat exchange by contact with air, and the drain pan 60 serves to collect the condensate.

The blower 70 is mounted in front of the heat exchanger 50. The blower 70 rotates the blower fan 72 at a high speed to force the air flow, and a motor 74 for transmitting rotational power to the blower fan 72, and the motor is an indoor unit 1. It comprises a motor bracket 80 to be mounted therein, and a housing 90 for receiving the blowing fan 72 therein to guide the wind direction of the blowing fan 72.

The blower fan 72 is also referred to as a multi-wing fan with a plurality of blades formed at equal intervals on the outer circumferential surface, and discharges the air in the direction of the outer circumferential surface after suctioning the air through the left and right sides during rotation.

Therefore, the housing 90 is formed so that the left / right and the front is opened, the air is introduced into the left and right / opened side and the introduced air is guided and blown forward. In addition, the opened front of the housing 90 is installed to contact the rear surface of the discharge port 13 so that the air inside the indoor unit 1 can be discharged to the outside through the discharge port 13.

As shown in FIG. 3, the housing 90 is formed to be rounded as a whole, and the front housing 92 positioned in front of the housing 90 is formed round to the rear side of the front housing 92, and the rear surface of the housing 90 is formed on the front panel 15. It is configured to include a rear housing 96 that is fixed.

In addition, the hook 97 and the hook engaging stone are engaged with each other at the lower left and right sides of the front housing 92 and the rear housing 96 so that the lower portions of the front housing 92 and the rear housing 96 are not separated from each other. A group (not shown) is formed.

In addition, the front and rear fastening ribs 92 'and 96' are formed on the upper left and right sides of the front housing 92 and the rear housing 96 to protrude outwardly and to engage the coupling member S such as a screw. .

Accordingly, the rear housing 96 is coupled to the front and rear fastening ribs 92 'and 96' after the hook 97 and the hook engaging protrusion (not shown) are fixed to the front panel 15. When the member S is fastened, the housing 90 maintains the shape as shown in FIG. 3.

However, the conventional housing having the above configuration has the following problems.

That is, the housing 90 is composed of a front housing 92 and the rear housing 96, after separating the coupling member (S) for the separation of the front housing 92 and the rear housing (96) The restraint of the hook 97 and the hook catching protrusion (not shown) must be released.

Therefore, since the coupling member (S) is required to be provided with a plurality, it takes a lot of time during assembly and disassembly, there is a problem that the productivity is lowered, causing a price increase.

In addition, the coupling member (S) is located on the upper end of the housing 90, but because it is located inside the indoor unit (1) has a problem that the separation of the coupling member (S) using a driver (not shown) is not easy have.

In addition, when the front housing 92 is detached to the outside of the indoor unit 1 in a state where the restraints of the front housing 92 and the rear housing 96 are completely terminated, there is a problem that the space is narrow and not easy.

Therefore, an object of the present invention is to solve the problems of the prior art as described above, by configuring the housing to be molded without a separate coupling member, the housing of the air conditioner indoor unit to improve productivity and reduce manufacturing costs It is to offer.

Another object of the present invention is to provide a housing of an air conditioner indoor unit in which the productivity is improved by configuring the housing to be separated in the up / down direction.

According to a feature of the present invention for achieving the above object, the present invention, in the housing of the air conditioner indoor unit for guiding the direction of the air flow generated by the blowing fan, at least one side is attached to the inside of the indoor unit And an upper housing forming an upper exterior, and a lower housing joined to a lower side of the upper housing to form a lower exterior, and shielding a portion of the upper housing to form an exhaust passage. One side of the lower housing is characterized in that the engaging and restraining mechanism is provided so as not to be separated from each other by being engaged by the elastic restoring force.

One side of the upper housing and the lower housing is formed to be compatible with each other is characterized in that the guide projection and the projection receiving groove for guiding the coupling position of the upper housing and the lower housing.

One side of the upper housing, the wire fixing device for limiting the flow of the electric wire by protruding to the outside to accommodate the wire inside, and coupled to one side of the indoor unit is coupled to prevent the upper housing is separated. do.

One side of the lower housing, characterized in that the locking piece is penetrated after passing through the inner side of the indoor unit to restrain the downward flow of the lower housing.

One side of the upper housing and the lower housing, characterized in that it is provided with a sealing rib protruding to block the air leakage by the surface contact with one side of the outer surface of the lower housing and the upper housing.

The sealing rib is characterized in that a plurality provided.

The lower housing may be separated from the upper housing by rotating around the locking piece when the restraint between the locking hole and the restraint is released.

According to the present invention having such a configuration there is an advantage that the manufacturing cost is reduced and the productivity is improved.

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

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

4 is a bottom perspective view showing an external configuration of an air conditioner indoor unit employing a preferred embodiment of the present invention, Figure 5 is an exploded perspective view showing an internal configuration of an air conditioner indoor unit employing a preferred embodiment of the present invention Is shown.

As shown in these drawings, the indoor unit 100 of the air conditioner has an external rectangular shape that is long left and right, and the installation bracket 110 attached to the upper left and right sides and the wire having one end fixed to the building ceiling (not shown). The hanging state is maintained by the combination of.

In this suspended state, the indoor air is sucked forward and the indoor air sucked inside is heat-exchanged and then discharged backward.

That is, the indoor unit 100 has a front and rear opening is formed to form a suction port 102 and the discharge port (not shown), the suction port 102 is connected to the suction duct (not shown) and the discharge port (not shown) is discharged By being connected to communicate with the duct (not shown), the indoor air can pass through the interior of the indoor unit (100).

The remaining exteriors of the indoor unit 100, that is, the top, left and right side surfaces, and the bottom exterior surfaces are formed by the top panel 104, the side panel 106, and the bottom panel 108. Here, the bottom panel 108 is to shield the inside of the indoor unit 100 so that the inside does not look inside when looking up the indoor unit 100 mounted on the ceiling, it is configured to be selectively open when the indoor unit 100 failure occurs do.

Accordingly, the lower panel 108 is formed of a rectangular lower surface front panel 108 ′ and a lower rear panel 108 ″ having a size slightly larger than that of the lower front panel 108 ′. If the 108 108 is selectively separated from the indoor unit 100, the indoor unit 100 may be exposed and serviced.

The lower front panel 108 ′ is configured to be selectively changed in position with the filter assembly 160 described below. That is, the lower front panel 108 ′ is formed to have a size corresponding to that of the filter assembly 160, and when the positions of the lower front panel 108 ′ are interchanged with each other, the suction port 102 of the indoor unit 100 is viewed from the front lower panel of FIG. 4. The position of 108 '.

This is to facilitate installation by selectively coupling the duct (not shown) to the indoor unit 100 installed on the ceiling (not shown) at various places.

In addition, at the front end of the upper panel 104, the side panel 106, the lower rear panel 108 "and the lower front panel 108 ', a bent surface 109 bent in the inner direction of the indoor unit 100 is provided. The bent surface 109 is for mounting the filter assembly 160, thereby restricting the separation of the filter assembly 160 by restraining one side of the filter assembly 160.

In the center of the interior of the indoor unit 100, the barrier 120 for partitioning the interior space of the indoor unit 100 before and after is installed. The barrier 120 has a substantially square plate shape and is formed to have an outer size corresponding to the suction port 102.

Therefore, when the barrier 120 is mounted inside the indoor unit 100, the front space of the barrier 120 generates suction force, and the rear of the barrier 120 exchanges the sucked indoor air.

In addition, the barrier 120 is formed with a perforated air flow hole 122 to flow through the suction unit to the heat exchange unit. The air flow holes 122 are generally formed in plural so that the air in front of the indoor unit 100 can quickly flow to the rear.

The heat exchanger 130 is provided at the rear of the barrier 120. The heat exchanger 130 is for heat-exchanging the indoor air introduced into the indoor unit 100, and the temperature of the refrigerant flowing therein is transferred to the outer surface of the heat exchanger 130 to heat-exchange the indoor air.

Therefore, the heat exchanger 130 is mounted to be inclined so as to have a large contact area with the indoor air, and the elongated round tube is bent several times to have an approximately square plate shape.

On the left and right sides of the heat exchanger 130, the heat insulating member 140 is provided to stand upright. The heat insulating member 140 prevents the air heat exchanged by the heat exchanger 130 from contacting the side panel 106, thereby preventing the heat exchange efficiency from being lowered.

A drain pan 150 is provided below the heat exchanger 130. The drain pan 150 is for collecting the condensate generated when the heat exchanger 130 operates when flowing down along the outer surface, and the upper surface is recessed downward.

In addition, the condensate generated by the heat exchanger 130 has a low water temperature. In this case, in order to prevent dew condensation from occurring on the lower surface of the drain pan 150 when the cold condensate contacts the drain pan 150, the drain pan may not be formed. 150 is preferably molded of a material having excellent thermal insulation performance.

On the other hand, the filter assembly 160 is provided on the front of the indoor unit (100). The filter assembly 160 is installed in front of the suction port 102 to filter foreign matter, and is formed to have a size corresponding to the suction port 102 to maintain the interference state of the filter assembly 160. do.

The filter assembly 160 is a filter (162) for selectively filtering only foreign matter contained in the room air through a plurality of holes (not shown), and a filter coupled to the panel while supporting the filter 162 And a frame 164.

The filter 162 is generally formed in a net-like shape to filter foreign materials, and the edge portion is fixed by the filter frame 164 to maintain a flat shape.

The filter frame 164 is injection molded by melting the plastic, it is necessary to firmly support the filter 162, it should not be easily broken. Therefore, the filter frame 164 is preferably molded from engineering plastics.

Elastic hooks 166 are formed on upper and lower portions of the filter frame 164. The elastic hook 166 is configured to be engaged with the panel (that is, the bent surface 109 of the upper panel 104, the side panel 106 and the lower panel 108) by the elastic restoring force, The filter 162 generates a restraining force to prevent the filter from being separated from the indoor unit 100.

Thus, the plurality of elastic hooks 166 are formed so that a plurality of places of the filter frame 164 can be engaged with the bent surface 109, so as not to be separated or separated from the filter frame 164 The elastic hanger 166 is preferably formed integrally with the filter frame 164.

Meanwhile, a blower 200 is provided in front of the barrier 120. The blower 200 is a suction force is generated in the front space, that is, the front space inside the indoor unit 100 on the basis of the barrier 120, the indoor air is sucked into the indoor unit 100 to the barrier 120 Blowing backwards.

In order to perform this role, the blower 200 generates a suction force from the left and right sides to the center portion when rotating, and blows the air in the outer circumferential direction, and generates a rotating power when the power is applied to the blower fan 220. A motor 240 for rotating the motor, a motor bracket 260 for supporting the motor 240 so as to be positioned at a predetermined position inside the indoor unit 100, and a blower fan 220 accommodated therein, It is configured to include a housing 300 to guide the direction.

The blower fan 220 is also referred to as a multi-wing fan with a plurality of blades are formed at equal intervals on the outer circumferential surface, and discharges in the direction of the outer circumferential surface after sucking the air into the inside through the left and right sides during rotation.

The blowing fan 220 is axially coupled with the motor 240. The motor 240 rotates at a high speed to generate rotational power, and the generated rotational power is transmitted to the blowing fan 220 through the motor shaft 242. Therefore, the blower fan 220 may rotate in conjunction with the motor shaft 242.

The motor 240 is supported by a load by the motor bracket 260. That is, the motor bracket 260 is formed after cutting a plurality of places of the plate material, bent, the motor seat 262 is formed on the lower left and right, the motor 240 is seated on the motor seat 262 By being constrained, the motor bracket 260 can support the load of the motor 240.

Therefore, when the motor 240 is supported by the motor bracket 260 and the blowing fan 220 is fitted to the motor shaft 242 to be coupled to the blowing fan 220, the blowing fan 220 is spaced apart from an upper side of the lower panel 108. State can be maintained.

When the blowing fan 220 spaced apart from the lower panel 108 rotates to generate air flow, the housing 300, which is a main component of the present invention, guides the flow direction of air.

That is, the blowing fan 220 is rotated in an uninterrupted state inside the housing 300, and the air flowing into the central portion of the blowing fan 220 and forced to flow toward the outer circumferential surface of the housing 300 is disposed in the housing 300. Guided by the inner circumferential surface is guided to the rear, that is, the air flow hole (122).

Hereinafter, the configuration of the housing 300 will be described in detail with reference to FIGS. 6 to 9.

As shown in these figures, the housing 300 has a substantially whistle shape when viewed from the left side, and is perforated in a circular shape on the left and right sides, and an exhaust passage 310 is formed at an inner rear portion thereof to form the air flow hole ( 122).

Therefore, when the blowing fan 220 rotates inside the housing 300, the blowing fan 220 sucks indoor air to the left / right sides of the housing 300 and forcedly blows the air toward the outer circumferential surface thereof. The indoor air blown as described above moves to the air flow hole 122 along the flow path.

 The housing 300 is formed by combining two components from above / below, the upper housing 320 which is located on the upper side of the housing 300 to form an upper appearance, and the lower side of the upper housing 320. It is configured to include a lower housing 340 to form a lower appearance.

The upper housing 320 is coupled to the rear end of the barrier 120 in front of the barrier 120, more specifically, in contact with an outer edge of the air flow hole 122. Therefore, a square plate-shaped coupling piece 322 protrudes from the left and right sides of the rear end of the upper housing 320.

The coupling piece 322 is coupled to the rear surface in contact with the front surface of the barrier 120, the front and bottom portion is provided with a fastening hole 322 'perforated rearward. Therefore, after the fastening member such as a screw penetrates the fastening hole 322 'and the rear end of the fastening member is fastened to the barrier 120, the coupling piece 322 is in close contact with the front surface of the barrier 120, The upper housing 320 is not separated from the barrier 120.

The rounded front surface of the upper housing 320 is provided with a wire fixture 324 protruding upward. The wire fastener 324 is for receiving and restraining an electric wire (not shown) inside the indoor unit, and is open upward and has a narrow upper portion.

Therefore, when the wire (not shown) is inserted into the wire fixing device 324, the wire fixing device 324 is spaced apart in opposite directions and elastically restored to restrain the wire from being separated upward.

Guide protrusions 325 and protrusion accommodation grooves 326 protrude from the lower left and right sides of the upper housing 320. The guide protrusion 325 and the projection receiving groove 326 are for guiding the coupling position of the upper housing 320 and the lower housing 340, the projection receiving groove 345 formed in the lower housing 340 and It is mated with the guide protrusion 346.

Therefore, when the guide protrusions 325 and 346 and the protrusion accommodation grooves 326 and 345 are joined together, the upper housing 320 and the lower housing 340 may be moved back and forth by the interference between the guide protrusions 325 and 346 and the protrusion accommodation grooves 326 and 345. The movement of the direction is constrained, and the lower end of the upper housing 320 and the upper end of the lower housing 340 are in linear contact with each other to form a space therein.

'형상을 가지며, 사각판 모양의 후반부 상면이 상기 배기유로(310)의 바닥면을 형성하게 된다.The lower housing 340 is joined to the lower side of the upper housing 320. The lower housing 340 is approximately '

It has a shape, and the upper surface of the second half of the rectangular plate shape forms the bottom surface of the exhaust flow path (310).

A locking piece 342 is provided on the rear surface of the lower housing 340. The locking piece 342 has a horizontally long rectangular parallelepiped shape and serves to restrain the downward flow of the lower housing 340.

More specifically, the engaging piece 342 is coupled to the barrier 120, the coupling piece 322 is coupled to the barrier 120, the flow of the upper housing 320 is constrained, as shown in Figure 9 the air flow hole 122 After passing through, the right side contacts the left side of the barrier 120, and the right and downward flows of the lower housing 340 are constrained.

Therefore, the exhaust passage 310 and the air flow hole 122 can minimize the leakage of air.

In addition, a plurality of sealing ribs 327 are formed at a plurality of places of the lower housing 340 to minimize such air leakage. That is, as shown in FIG. 7, sealing ribs 327 are provided on the upper left and right sides of the lower housing 340 and the upper surface of the rear half.

The sealing rib 327 protrudes outward so that an inner surface may contact a portion of an outer surface of the upper housing 320 and is bent upward. Therefore, when the upper housing 320 and the lower housing 340 are bonded to each other, the sealing rib 327 is shielded so that the air inside the housing 300 does not leak to the bonded portion.

In addition, a sealing rib 347 is formed at the center of the front lower end of the upper housing 320. Therefore, when the rear surface of the sealing rib 347 is in surface contact with the upper front surface of the lower housing 340, the leakage of air in the housing 300 is further prevented.

In the front center portion of the housing 300, the upper and lower housing 320 and the lower housing 340 is formed with a latch 349 and the restraint 329 is locked to prevent the separation from each other.

The latch 349 is formed to be bent upwards after being slightly protruded forward from the front left and right sides of the lower housing 340 and is formed to have elastic force in the front and rear directions. In addition, a hook 349 ′ formed to be inclined protrudes from an upper end of the front surface of the locking hole 349.

The hook 349 ′ is to be locked by penetrating through the restriction 329, and serves to prevent separation of the upper housing 320 and the lower housing 340. Therefore, the hook insertion hole (refer to reference numeral 329 'of FIG. 9) penetrated in the center portion of the restraint hole 329 is drilled, and the hook 349' is inserted into the hook insertion hole 329 '. The hook 349 is elastically restored afterwards so that the hook 349 'is locked.

Reference numeral '170' of FIG. 5 denotes a control box, and a plurality of electronic components are embedded therein to control the operation of the indoor unit 100.

Hereinafter, the operation of the air conditioner indoor unit 100 having the above configuration will be described based on the cooling mode.

First, when the power is applied to the indoor unit 100 assembled as shown in FIG. 4, the blower 200 operates to generate suction power. More specifically, the blowing fan 220 is rotated to generate a suction force from the left and right side to the center direction, the suction force is to the left and right sides of the housing 300, the suction port 102 and the suction duct (not shown) Delivered to inhale the room air.

At this time, the filter 162 guides the purified air into the indoor unit 100 after filtering the foreign matter. The indoor air passing through the filter 162 is introduced into the blowing fan 220 through the left and right sides of the housing 300 and then flows in the direction of the outer circumferential surface.

At this time, the air flowing to the outer circumferential surface of the blower fan 220 is guided by the exhaust passage 310 to pass through the air flow hole 122. The indoor air passing through the air flow hole 122 is in contact with the outer surface of the heat exchanger 130 to exchange heat.

The condensed water generated during the heat exchange process of the heat exchanger 130 is drained and collected on the upper surface of the drain pan 150.

Thereafter, the air heat exchanged by the heat exchanger 130 is introduced again into the indoor space via the discharge port (not shown) and the discharge duct in order, thereby allowing the interior to be cooled.

Hereinafter, a process of coupling the housing 300 to the barrier 120 will be described with reference to FIGS. 6 to 9. Prior to describing the coupling process of the housing 300, the accompanying drawings are shown in the direction in which the indoor unit is mounted on the ceiling, when the actual indoor unit is assembled, the lower panel is located on the upper side, that is, up / down Note that proceeds upside down.

Accordingly, the upper housing 320 is preferentially assembled from the upper housing 320 and the lower housing 340, which are components of the housing 300. That is, the rear surface of the fastening piece is in close contact with the front surface of the barrier 120, and then a fastening member such as a screw is coupled to the fastening hole 322 '. In this case, the upper housing 320 is in an open state in an upward direction.

Thereafter, the blower 200 is mounted inside the indoor unit 100. When the blower 200 is installed inside the indoor unit 100, the blower fan 220 is positioned at the upper portion of the upper housing 320 at the time of actual assembly, and the outer circumferential surface of the blower fan 220 is located at the upper portion thereof. The state is spaced apart from the housing 320.

In this state, the lower housing 340 is fastened to the upper side of the upper housing 320. In more detail, after the locking piece 342 is penetrated into the air flow hole 122 while the lower housing 340 is inclined obliquely, the upper right and upper housings 320 of the lower housing 340 are disposed. ), The bottom right side should be close to each other.

At this time, the lower housing 340 is rotated about the locking piece 342 to be combined with the upper housing 320.

At the same time, the sealing ribs 327 and 347 formed in the upper housing 320 and the lower housing 340 respectively come into contact with the outer parts of the counterparts ie, the lower housing 340 and the upper housing 320 to block air leakage. .

In addition, the restraint hole 329 is inserted into the hook insertion hole 329 ', and the hook 349' is elastic to the restraint hole 329 by being interfered by the hook insertion hole 329 'during the insertion process. It will generate resilience.

Then, when the restraint hole 329 is completely inserted into the hook insertion hole 329 'and becomes in the state as shown in FIG. 9, the interference between the hook 349' and the hook insertion hole 329 'is terminated, 329 is elastically restored so that the lower right side of the hook 349 'is locked by the locking hole 349.

In this manner, the coupling between the upper housing 320 and the lower housing 340 is completed.

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

For example, in the exemplary embodiment of the present invention, the sealing ribs are formed in the upper and lower housings, respectively, but if necessary, protrusions are formed on the entire outer surface of the lower end of the upper housing or the upper end of the lower housing. Of course, it can also be configured to be more shielded.

The housing of the indoor unit of the air conditioner according to the present invention as described in detail above, the upper housing and the lower housing is configured to be configured without a separate fastening member.

Therefore, the work maneuvering, such as screw fastening is reduced, there is an advantage that the productivity is improved.

In addition, the manufacturing cost of the indoor unit is reduced because the number of parts is reduced.

In addition, the upper housing and the lower housing is configured to be separated in the vertical direction, there is an advantage that the serviceability is improved when the indoor unit failure occurs.

Claims (7)

In the housing of the air conditioner indoor unit for guiding the direction of the air flow generated by the blowing fan, At least one side is attached to the inside of the indoor unit, and the upper housing to form an upper appearance, It has a configuration including a lower housing is formed on the lower side of the upper housing to form a lower appearance, shielding a portion of the upper housing to form an exhaust flow path, The housing of the air conditioner indoor unit, characterized in that the one side of the upper housing and the lower housing is provided with a catching and restraining mechanism to be coupled to each other by the elastic restoring force so as not to be separated from each other. The housing of the air conditioner indoor unit according to claim 1, wherein one side of the upper housing and the lower housing is formed to be compatible with each other, and a guide protrusion and a projection receiving groove are provided to guide a coupling position of the upper housing and the lower housing. . According to claim 2, One side of the upper housing, An electric wire fixture which protrudes outwards and restricts the flow of electric wires by receiving and restraining electric wires therein; The housing of the air conditioner indoor unit is coupled to one side of the indoor unit is provided with a coupling piece to prevent the upper housing from being separated. According to claim 3, One side of the lower housing, The housing of the air conditioner indoor unit, characterized in that the locking piece is passed through one side of the indoor unit and the locking piece is restrained to restrict the downward flow of the lower housing. According to claim 4, One side of the upper housing and the lower housing, The housing of the air conditioner indoor unit is provided with a sealing rib protruding to block the air leakage by the surface contact with one side of the outer surface of the lower housing and the upper housing. The housing of the air conditioner indoor unit according to claim 5, wherein the sealing rib is provided in plurality. 7. The housing of the air conditioner indoor unit according to claim 6, wherein the lower housing is detachable from the upper housing by rotating around the locking piece when the restraint between the locking and restraining holes is released.

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