KR20070119896A - Indoor unit for air conditioner - Google Patents

Abstract

An indoor unit for an air conditioner is provided to reduce the number of parts of the motor mount by forming a motor mount in a single part, thereby reducing manufacturing cost and improving the productivity. An indoor heat exchanger exchanges heat between indoor air and refrigerant. An air blower apparatus(300) moves air of an external case forcibly. A motor mount(360) is installed at one side of the air blower apparatus in a single part for restricting movement of a fan motor(310). The air blower apparatus includes a fan(330) coupled to the fan motor to flow air forcibly, a wind direction guide(340) containing the fan for guiding a direction of the air flow, an orifice(350) attached to one side of the wind direction guide to guide air outside the wind direction guide into the inside, and the motor mount having an outer end combined with the wind direction guide in a state of covering an outer surface of the fan motor to support the fan motor to be fixed at the wind direction guide.

Description

Air Conditioner Indoor Unit {Indoor unit for air conditioner}

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

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

Figure 3 is a perspective view showing the external configuration of the air conditioner indoor unit according to the present invention.

Figure 4 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner according to the present invention.

Figure 5 is a rear perspective view showing the appearance of the blower which is a main configuration of the indoor unit of the air conditioner according to the present invention.

Figure 6 is an exploded perspective view showing a blower which is a main configuration of the indoor unit of the air conditioner according to the present invention.

Figure 7 is a perspective view showing a state in which the motor mount constituting the main portion of the blower in the indoor unit of the air conditioner according to the present invention coupled to the outer surface of the fan motor.

Explanation of symbols on the main parts of the drawings

100. Outer case 110. Front panel

110 '. Upper Front Panel 110 ". Lower Front Panel

112. Plumber 112 '. High pressure plumber

112 ". Low pressure piping 114. Drain hole

114 '. Side drain hole 116. Switch exposure hole

116 '. Shield Panel 120. Left Panel

130. Right panel 140. Rear panel

150. Top panel 152. Duct guide

160. Panel holder 170. Outlet

200. Lower frame 202. Left frame

204. Right frame section 206. Front frame section

208. Rear frame section 210. Suction port

220. Drain pan 222. Drain section

224. Front fixing member 230. Side drain pan

232. Side drains 240. Indoor heat exchanger

250. Center frame 252. Side section

254. Rear View 256. Fan Guide

260. Filter 270. Filter cover

300. Blower 310. Fan motor

312.Motor shaft 330.Blowing fan

332. Power train 333. Shaft fasteners

340. Wind direction guide 342. Openings

344. Mount Connections 346. Thread

350. Orifice 352. Orifice ball

354. Through Hole 360. Motor Mount

362. Fastening means 363. Fasteners

364. Supporting means 366. Couplings

368. Constraints 380. Dust Isolation

382.Recesses 384. Holes

400. Upper frame 410. Barrier

412. Vent hole 420. Vertical guide

422. Heater fixing groove 430. Exhaust guide member

432. Side panel 434. Front panel

440. Electric heater 442. Heater support plate

450. Control box 452. Voltage transformer

454. Motherboard 456. Power Switch

 N. nut

The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit of an air conditioner, in which a motor mount that restricts the flow of a fan motor is formed as a single part, and thus the fan motor is easily mounted.

In general, an air conditioner is a device for maintaining the air of a space for air conditioning in the most optimal state according to the purpose, and is installed in a space or a wall of a room such as a vehicle, an office, and a home to cool or heat a room. do. The air conditioner also composes a series of cycles consisting of compression, condensation, expansion, and evaporation, in order to match the air according to the purpose.

In particular, an air conditioner is responsible for condensation and compression, and is mainly an outdoor unit (sometimes called an 'outdoor side' or a 'heat radiating side') installed outdoors, and an indoor unit ('indoor side' or mainly installed inside an evaporative unit) Also referred to as 'heat absorbing side' can be divided into a separate type of air conditioner is installed separately, and an integrated air conditioner is installed integrally with the outdoor unit and the indoor unit.

In addition to cooling and heating, the air conditioner has a variety of additional features such as an air purifying function that suctions and filters contaminated air in the room and then re-supplies clean air into the room, and a dehumidification function that reinjects humid air into wet and dry air. Features are being added.

Hereinafter, a configuration of an indoor unit will be described with reference to the attached FIG. 1 as an example of a separate air conditioner.

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

As shown in the figure, the indoor unit 10 is mainly mounted in the interior of the building and is molded into a substantially rectangular parallelepiped shape in which a space is formed therein.

The indoor unit 10 has a vertically long rectangular parallelepiped shape, and the exterior of the indoor unit 10 is formed by a cabinet 12 in which a plurality of panel ends are coupled to each other.

The lower surface portion of the indoor unit 10 is perforated to suck air in the space for air conditioning into the indoor unit 10. Therefore, the lower surface of the indoor unit 10 is molded so that the space for air conditioning with the interior of the indoor unit 10 is in communication with each other.

In addition, the indoor unit 10 is configured to discharge the air harmonized therein in the upward direction. That is, the upper half of the upper surface of the cabinet 12 is provided with a discharge port 20 formed in the perforated so that the interior of the indoor unit 10 communicates with the outside. The discharge port is punctured in a rectangular shape, and the edge of the discharge port is provided with a duct guide 22 protruding upward.

Therefore, the discharge duct (not shown) is coupled to the duct guide 22 in communication with each other, and the other end of the discharge duct is discharged through the discharge port 20 when communicating with the indoor space (not shown) for air conditioning The air can flow to the indoor space.

The heat exchanger 30 is installed inside the indoor unit 10. The heat exchanger 30 is formed to be inclined with each other to contact the upper end, and serves to heat exchange the outside air introduced into the indoor unit (10).

The drain pan 40 is provided below the heat exchanger 30. The drain pan 40 collects the condensed water generated on the outer surface of the heat exchanger 30 when the refrigerant passing through the heat exchanger 30 and the outside air exchange heat.

The barrier 50 is provided on the upper side of the indoor unit 10. The barrier 50 divides the inside of the indoor unit 10 up and down, and the control box 60 is installed in the first half of the upper surface, and in the second half of the upper surface, the space below the barrier 50 and the discharge hole 20 communicate with each other. Is formed.

The lower side of the barrier 50 is provided with a blower 70 for generating a suction force so that the outside air flows into the indoor unit 10 will be described in detail with reference to FIG.

As shown in FIG. 2, the blower 70 includes a fan motor 72 generating rotational power, a blowing fan 74 coupled to the fan motor 72 to generate wind power, and the blowing fan. Wind direction guide 76 for guiding the flow direction of the generated wind (74), the motor mount 78 for supporting the fan motor 72 and the bracket 79 for restricting the flow of the motor mount (78) It is configured to include.

The blowing fan 74 is inserted into the wind direction guide 76 and rotates to generate a suction force from the right side to the left side, and is configured to discharge the wind direction guide 76 forward. That is, the shaft coupling hole 75 is formed in the inner center of the blowing fan 74 in a shape corresponding to the end of the motor shaft 73 of the fan motor 72 is coupled to the motor shaft 73, such a Axial coupling allows the blowing fan 74 to receive the rotational power of the fan motor 72.

The motor mount 78 includes a pair of support pieces 78 'and a pair of restraints 78 ". The support piece 78' is a load of the fan motor 72. In order to support the fastener, the inclined surface 79 'of the bracket 79 and the fastening means are fastened to support the load of the fan motor 72.

Fixing parts 78'a and 78 "which are fastened to a fastening part 72 'protruding in a disc shape at left and right ends of the fan motor 72 on one side of the support piece 78' and the restraining piece 78". a) is formed.

The fixing portions 78'a, 78 "a formed in the support piece 78 'and the restraining piece 78" are fastened to the fastening portion 72' when the 78 'and the restraining piece 78 "are engaged with each other. It has an inner diameter corresponding to the outer diameter of the) to regulate the flow of the fan motor 78 'and the restraining piece 78 ".

"형상을 가지며, 선단부에는 장착판(79")이 외측으로 절곡된다. 상기 장착판(79")은 브라켓(79)이 상기 베리어(50)의 하면에 결합되도록 하는 것으로, 상기 장착판(79")에는 다수개의 체결공(79"a)이 천공 형성된다.The bracket 79 is approximately "

"It has a shape, and the mounting plate 79" is bent outward at the front end. The mounting plate 79 ″ allows the bracket 79 to be coupled to the bottom surface of the barrier 50. A plurality of fastening holes 79 ″ a are formed in the mounting plate 79 ″.

Therefore, when the fastening member penetrating the fastening hole 79 "a is fastened to the barrier 50, the bracket 79 supports the load of the fan motor 72 and the motor mount 78 at the same time.

However, the above-described prior art has the following problems.

That is, the motor mount 78 for fixing the fan motor 72 at a predetermined position inside the indoor unit 10 is composed of a plurality of parts, and a plurality of fastening members must be fastened to restrict the flow of the fan motor 72. You can do it.

In addition, the motor mount 78 must also be restrained by a bracket 79 that is separately configured to support the load of the fan motor 72.

Therefore, there is a problem in that the productivity of the blower device 70 due to the considerable number of assembling labor.

In addition, the fan motor 72 is supported with the fastening portion 72 'in contact with the motor mount 78 to have a large contact area.

Therefore, the noise and vibration generated when the fan motor 72 is rotated are transmitted to the motor mount 78 and the bracket 79, so that the user may feel discomfort.

An object of the present invention is to solve the above problems, to provide an air conditioner indoor unit to reduce the number of parts of the motor mount to facilitate assembly and improve productivity.

Another object of the present invention is to provide an air conditioner indoor unit which is configured to be coupled to the wind direction guide without a bracket to reduce the vibration and noise of the blowing fan, and to reduce the manufacturing cost.

An indoor unit of an air conditioner according to the present invention for achieving the above object includes an indoor heat exchanger for exchanging indoor air with a refrigerant that is a working fluid, and a blower for forcing an air flow inside the outer case to form an exterior. One side of the blower is formed as a single component is characterized in that the motor mount is provided to restrain the flow of the fan motor.

The blower device includes: a blower fan axially coupled with a fan motor for generating rotational force to force air flow; A wind direction guide accommodating the blower fan to guide the direction of air flow generated by the blower fan; An orifice attached to one side of the wind direction guide to guide air outside the wind direction guide into the air; And an outer end coupled to the wind direction guide while covering the outer surface of the fan motor, and a motor mount supporting the fan motor to be fixed to the wind direction guide.

The motor mount is coupled to surround the central portion of the outer surface of the fan motor.

The motor mount may include fixing means fixed in contact with an outer surface of the fan motor; It characterized in that it comprises a; protruding outward from the outer surface of the fixing means, one side is coupled to the orifice to support the load of the fan motor.

The fan motor is characterized in that located inside the wind direction guide.

One side of the fixing means, is coupled to each other by the fastening of the fastening member is characterized in that the fastening piece for regulating the separation of the fan motor.

The inner circumferential length of the fixing means is smaller than the outer circumferential length of the fan motor.

The supporting means is provided in plurality, characterized in that the plurality of supporting means is formed radially on the outer peripheral surface of the fixing means.

The plurality of support means is characterized in that the same angle with each other.

The support means is coupled to one side of the wind direction guide so that the motor mount is not separated from the wind direction guide, and the bending portion is formed between the coupling portion and the fixing means to generate a restraining force on the fan motor inserted inside the fixing means. Characterized in that configured to include a restraint.

One side of the wind direction guide is characterized in that it is provided with a mounting portion protruding in one direction and through the orifice and the coupling portion at the same time to guide the mounting position of the orifice and the motor mount.

One side of the coupling portion, characterized in that the vibration isolator is provided so that the vibration generated during the operation of the fan motor is not transmitted to the orifice.

According to the indoor unit of the air conditioner comprised in this way, there exists an advantage that attachment / detachment of a filter becomes easy.

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

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

First, referring to the external shape of the air conditioner indoor unit with reference to FIG. 3, the indoor unit of the air conditioner is formed by an outer case 100 having a substantially rectangular parallelepiped shape forming an internal space.

The outer case 100 has a front panel 110 forming a front appearance, a left panel 120 forming a left appearance, a right panel forming a right exterior (130 of FIG. 4), a rear panel forming a rear exterior. 140, the upper panel 150 to form a top appearance may be fastened, respectively, the left panel 120 and the right panel 130, the rear panel 140 may be integrally formed.

The front panel 110 is divided into two parts, an upper part and a lower part, and an upper front panel 110 'provided at an upper side and a lower front panel 110' provided at a lower side of the upper front panel 110 '. The front panel 110 is partitioned into an upper front panel 110 ′ and a lower front panel 110 ″ by the panel holder 160.

That is, the upper end of the panel holder 160 and the lower end of the upper front panel 110 'are fastened, and the lower end of the panel holder 160 and the upper end of the lower front panel 110 "are fastened so that the front panel ( 110 is divided into an upper front panel 110 ′ and a lower front panel 110 ″. A shielding plate 116 ′ is mounted on a left front upper end portion of the upper front panel 110 ′ to selectively shield the switch exposure hole 116 of FIG. 4.

The switch exposure hole 116 is formed to be perforated to have a substantially rectangular shape, and the switch exposure hole 116 is formed to expose the power switch 456 to be described later. The switch exposure hole 116 is shielded by the shield plate 116 ′ when the air conditioner is not used to prevent dust and foreign substances from flowing from the outside.

The lower front panel 110 ″ is formed with a perforated pipe hole 112 penetrating left and right through a refrigerant pipe (not shown) formed to communicate with an indoor heat exchanger 240 to be described later. Is formed of a high pressure pipe hole 112 'through which a high pressure pipe (not shown) through which a relatively high pressure refrigerant flows and a low pressure pipe hole 112 "through a low pressure pipe (not shown) through which a low pressure refrigerant flows. do.

Under the pipe hole 112, drain holes 114 through which the drain part 222 formed to communicate with the drain pan 220 to be described later are formed on the left and right sides. A side drain hole 114 ′ through which the side drain portion 232 of the side drain pan 230 is described later is further formed on the drain hole 114.

The upper panel 150 forms an outer appearance of the upper surface of the outer case 100, and a perforation is formed in the second half of the upper panel 150 to discharge air that is harmonized inside the outer case 100 to the outside ( 170 is provided. The upper edge of the discharge port 170 is bent upward along the edge to form a duct guide 152 for guiding the connection of the connection duct (not shown).

Looking at the internal configuration of the air conditioner indoor unit employing one embodiment with reference to Figure 4, the lower frame 200 for supporting the lower end of the outer case 100 is mounted on the lower end of the outer case (100).

The lower frame 200 is formed long before and after the outer case 100 and the left frame portion 202 fixed to the lower end of the left panel 120 and the right frame portion fixed to the lower end of the right panel 130 ( 204 and the front frame part 206 connecting the front end part of the left and right frame parts 202 and 204 and the rear frame part 208 connecting the rear end part.

Accordingly, a rectangular inlet 210, which is a passage through which air in a space for air conditioning is sucked into the outer case 100, is formed inside the lower frame 200 to guide the air.

A filter cover 270 is further provided at the front of the lower frame 200, and a square filter 260 is provided at the rear of the filter cover 270. Therefore, when the filter cover 270 is fastened to the front end of the lower frame 200, the filter 260 shields the inlet 210 to filter foreign matter from the air introduced from the outside.

The drain pan 220 is mounted above the lower frame 200. The drain pan 220 is provided to collect the condensed water generated in the indoor heat exchanger 240 mounted on the upper side and to discharge the condensed water to the outside of the outer case 100. A drain portion 222 is formed on the front surface of the drain pan 220 to guide condensed water collected in the drain pan 220 to be discharged forward.

The drain portion 222 is formed to communicate with the inside of the drain pan 220 to guide the condensed water collected in the drain pan 220 to be discharged to the outside of the outer case 100, the lower front surface It is mounted to penetrate the drain hole 114 formed in the panel 110 "to discharge the condensed water to the outside of the outer case 100. The lower surface of the drain pan 220 is formed to be inclined at a predetermined portion to collect water therein. Preferably, the condensed water is formed to naturally flow into the drain portion 222.

Fan fixing members 224 and 226 are further provided at front and rear ends of the drain pan 220 to fix the drain pan 220 to the lower frame 200. The front fixing member 224 is formed at a front end of the drain pan 220 in a substantially "c" shape when viewed from the left side, and is detachably provided. The front and front frame parts of the drain pan 220 206).

The rear end of the drain pan 220 is preferably provided with a rear fixing member 226 is integrally formed with the rear frame portion 208 so that the drain pan 220 and the rear frame portion 208 is fastened. That is, the rear fixing member 226 is shaped into a substantially "┏" shape when viewed from the left side, and the lower end is integrally formed with the upper end of the rear frame part 208.

The side drain pan 230 is further formed on the left end of the drain pan 220. The side drain pan 230 is formed to have a height corresponding to the height of the indoor heat exchanger 240 will be described later. The side drain fan 230 is for collecting the condensate falling from the surface of the indoor heat exchanger 240 when the outer case 100 is laid lying inside the building.

The lower side of the side drain pan 230 is formed in a cylindrical shape so that the side drain portion 232 communicates with the inside of the side drain pan 230. The side drain portion 232 passes through the side drain hole 114 ′ of the lower front panel 110 ″ and is exposed to the front of the outer case 100. The side surface through the side drain portion 232 is exposed. The condensate collected in the drain pan 230 is discharged to the outside of the outer case 100.

The indoor heat exchanger 240 is mounted on an upper surface of the drain pan 220. The indoor heat exchanger 240 is formed by bending a cylindrical pipe having a predetermined diameter a plurality of times, and is generally formed in a substantially square plate shape. The indoor heat exchanger 240 is mounted in a substantially "∧" shape when viewed from the front, and the front and rear are shielded to block the flow of air.

A refrigerant, which is a working fluid, flows inside the indoor heat exchanger 240, and air in a space for air conditioning is sucked through the suction port 210 and flows upward to pass between the indoor heat exchanger 240. do. At this time, the heat exchanged with the refrigerant flowing in the indoor heat exchanger 240 and the air in the space for air conditioning is harmonized to suit the purpose of air conditioning.

The center frame 250 is provided at the rear of the panel holder 160. The center frame 250 is formed of a side portion 252 to which the left panel 120 and the right panel 130 are fixed, and a rear portion 254 to which the rear panel 140 is fixed. Inside the fan guide guide 256 is formed to protrude to the inner side of the center frame (250).

That is, when the outer case 100 is installed inverted, the indoor heat exchanger 240 and the drain pan 220 are mounted to be inverted. In this case, the inner case 100 has a predetermined width toward the inner side of the central frame 250. The drain pan 220 is supported by the fan guide guide 256 formed to protrude.

The blower 300 is provided above the center frame 250. The blower 300 is configured to discharge the air upward by forcing the air flow after sucking the air outside the indoor unit to the inside.

Hereinafter, the configuration of the blower 300 will be described in detail with reference to FIGS. 5 to 7.

5 is a rear perspective view showing an appearance of a blower which is a main component of an indoor unit of an air conditioner according to the present invention, and FIG. 6 is an exploded perspective view of a blower that is a main component of an indoor unit of an air conditioner according to the present invention. 7 is a perspective view showing a state in which the motor mount constituting the main portion of the blower in the air conditioner indoor unit according to the present invention is coupled to the outer surface of the fan motor.

As shown in these drawings, the blower 300 is a fan motor 310 for generating a rotational power when the power is applied, and a blowing fan for receiving the rotational power of the fan motor 310 to force the air flow 330, a wind direction guide 340 for guiding the air flow direction forced by the blowing fan 330, an orifice 350 for guiding the outside air of the wind direction guide 340 to enter therein, and It is configured to include a motor mount 360 for supporting the fan motor 310.

The fan motor 310 is located in the inner right space of the wind direction guide 340 to generate a rotational power, the motor shaft 312 protrudes on the left side, the motor shaft 312 is a blowing fan 330 The inner space of the power transmission plate 332 is partitioned to the center of the power transmission plate 332 is fitted so as not to be idle.

Accordingly, when the fan motor 310 is operated to rotate the motor shaft 312, the power transmission plate 332 may rotate simultaneously with the motor shaft 312 to rotate the blowing fan 330.

The blowing fan 330 is a multi-wing fan is provided with a plurality of wings along the outer circumferential surface, the multi-fan fan is to flow the air in such a way to suck the air into the inside and discharge in the outward direction.

The blowing fan 330 is inserted into the wind direction guide 340 and rotates, and the flow direction of the air discharged outward is guided along the rounded inner circumferential surface of the wind direction guide 340.

That is, the inside of the wind direction guide 340 forms a cylindrical space and the upper end portion is formed with a rectangular opening 342. In addition, the opening 342 is configured to communicate with an internal space of the wind direction guide 340.

Therefore, when the blowing fan 330 is rotated to force the air flow, the air forced to flow outside the blowing fan 330 is guided along the inner circumferential surface of the wind direction guide 340 is the wind direction guide 340 It is possible to discharge in the upward direction through.

The left and right side surfaces of the wind direction guide 340 are perforated in a circle so that the outside air can be sucked into the inside, and the perforated size is larger than the outer diameter of the blowing fan 330. Therefore, the blowing fan 330 can be inserted into the wind direction guide 340 through the left and right side surfaces of the wind direction guide 340.

A mount fastening part 344 protruding in the right direction is formed at an open outer side of the right side of the wind direction guide 340. The mount fastening portion 344 is coupled to the support means 364 to be described in detail below, three are formed at intervals of 120 ° and the thread 346 is formed at the right end.

In more detail, the mount fastening part 344 simultaneously passes through one side of the orifice 350 and the motor mount 360 to guide the mounting positions of the orifice 350 and the motor mount 360.

Therefore, when the mount fastening part 344 passes through the supporting means 364 and is coupled with the nut N, the motor mount 360 is constrained to the right side surface of the wind direction guide 340 and does not flow.

An orifice 350 is inserted into and fixed to the right side of the wind direction guide 340. The orifice 350 is perforated in the center to form an orifice hole 352, the orifice hole 352 is configured to gradually increase the inner diameter toward the right.

Accordingly, when suction force is generated inside the wind direction guide 340 by the rotation of the blowing fan 330, the suction force is transmitted to the orifice hole 352 so that the air outside the wind direction guide 340 is along the orifice hole 352. It is introduced into the wind direction guide 340.

In addition, the orifice hole 352 is formed to have an inner diameter smaller than the outer diameter of the blowing fan 330. The reason for this is to prevent the blowing fan 330 from being separated in the right direction.

A plurality of through holes (reference numeral 354 of FIG. 6) is formed on the right side of the orifice 350. More specifically, three holes are drilled with an inner diameter of a size slightly larger than the diameter of the mount fastening portion 344, and are formed at positions corresponding to the positions of the mount fastening portions 344.

The through hole 354 allows the mount fastening portion 344 to be penetrated so that the orifice 350 is fixed to the right side of the wind direction guide 340. After the mount fastening portion 344 penetrates the through hole 354. When the thread 346 and the nut N are fastened, the orifice 350 is not separated from the right side of the wind direction guide 340.

In addition, the inside and the right side of the orifice 350 is provided with a motor mount 360 which is a main component of the present invention. The motor mount 360 generates pressure on the fan motor 310 by wrapping a central portion of the outer circumferential surface of the fan motor 310, and accommodating the inside of the fan mount 310 in line contact with the outer surface of the fan motor 310. It is fixed to the orifice 350 serves to support the fan motor 310 is located in the center of the orifice hole 352 as shown in FIG.

That is, the motor mount 360 is wound on the outer surface of the fan motor 310 and is fixed to the outer peripheral surface of the fan motor 310 in a state where a pressure is generated and the fixing means 362 of Protruding outward from the outer surface, the outer end is coupled to the orifice 350 and the support means 364 for supporting the load of the fan motor 310 so that the fixing means 362 is spaced apart from the orifice 350 It is configured by.

The fixing means 362 has a shape such that approximately two rings are each placed on a plane parallel to each other, the upper side is spaced apart from each other, and the upper side is spaced apart from each other by fastening fastening members such as bolts. A fastening piece 363 is provided to allow the means 362 to apply pressure to the outer circumferential surface of the fan motor 310.

The fastening piece 363 is attached to the fixing means 362 in a state in which two square plates having the same shape are spaced apart from each other. As the pair of square plates are close, the fixing means 362 reduces the inner diameter of the fan. Line contact with the outer circumferential surface of the motor 310 is configured to eventually hold the fan motor 310.

Accordingly, the inner circumferential length of the fixing means 362 is a fan to prevent the fixing means 362 and the fan motor 310 from being spaced apart from each other when pressure is generated when the fastening pieces 363 are in close contact with each other. Obviously, the motor 310 should be formed smaller than the outer diameter of the motor 310.

On the outer side of the fixing means 362, the supporting means 364 is formed. The support means 364 is formed at an interval of 120 ° from the outside of the fixing means 362 so that the fixing means 362 can be located at the inner center of the orifice hole 352.

That is, the support means 364 is coupled to the mount fastening portion 344, the coupling portion 366 to prevent the motor mount 360 from being separated from the wind direction guide 340, the coupling portion 366 and the fixing means The fan motor 310 which is bent between the 362 and restrained inside the fixing unit 362 includes a restraining part 368 spaced apart from the orifice 350.

The coupling part 366 serves to prevent the motor mount 360 from being separated from the wind direction guide 340 and to support the coupling part 366 to be positioned at the center of the orifice hole 352. It is formed to be bent round at the end and the mount fastening portion 344 is inserted therein.

Therefore, when the nut (N) is fastened to the screw thread 346 through the coupling portion 366, the motor mount 360 is maintained on the right side of the wind direction guide 340, the fan motor The 310 is located inside the wind direction guide 340.

An inner end portion of the coupling portion 366 is provided with the restriction portion 368. The restricting portion 368 is formed by bending the center portion of the rod having a circular cross section at right angles to each other. A coupling portion 366 is formed at an outer end thereof, and an inner surface thereof is attached to and fixed to an outer circumferential surface of the fixing means 362.

Therefore, when the coupling part 366 is fastened to the mount fastening part 344 and the flow of the motor mount 360 is regulated, the fan motor 310 is supported while being positioned at the center of the orifice hole 352 and the No part except the fixing means 362 is in contact with the fan motor 310.

Inside the coupling portion 366 is a dustproof opening 380 formed of a rubber member having an elastic force. The anti-vibration port 380 is to prevent the vibration generated during the operation of the fan motor 310 to the orifice 350, as shown in Figure 6 is formed to have a smaller diameter than the left side and approximately In the center portion, a recessed recess 382 is formed.

The recess 382 is inserted into the coupling portion 366 to prevent the dustproof opening 380 from being separated from the motor mount 360.

In addition, the hole 384 is drilled in the center left / right direction of the dustproof hole 380. The hole 384 guides the mount fastening portion 344 to be inserted, and is preferably formed to have an inner diameter corresponding to the diameter of the mount fastening portion 344.

Referring to FIGS. 3 and 4 again, the upper frame 400 is provided on the upper side of the blower 300. The upper frame 400 is formed of a barrier 410 partitioning the inner space of the outer case 100 up and down and a vertical guide part 420 bent upward from the rear end of the barrier 410.

In the second half of the barrier 410, a discharge hole 412 is formed, which is a passage through which the harmonized air forcedly blown from the blower 300 is discharged. The discharge hole 412 is fastened with the upper surface of the wind direction guide 340 is guided by the wind direction guide 340 is a passage for discharging upward air flows upward.

In other words, the exhaust guide member 430 is mounted at the front end of the barrier 410. The exhaust guide member 430 guides the harmonized air discharged from the discharge hole 412 to flow upward. The exhaust guide member 430 is formed of a side plate 432 and a front plate 434, the front plate 434 is formed in a substantially rectangular plate shape to a width corresponding to the left and right width of the barrier 410 Is molded into.

The side plate 432 which is bent and extended rearward from the left and right end portions of the front plate 434 is formed such that a rear end portion thereof is engaged with both side ends of the vertical guide portion 420. The upper end of the front plate 434, side plate 432 and the vertical guide portion 420 is formed to protrude upward than the upper surface of the upper panel 150, the duct guide 152 is molded.

In the center portion of the front plate 434, a heater installation hole 436 is formed perforated. An electric heater 440 penetrates the heater installation port 436 and is mounted inside the exhaust guide member 430. The electric heater 440 generates heat by the application of an external power source, and the heat of the harmonized air flowing upward through the discharge hole 412 is increased due to the heat.

That is, the harmonics are mounted inside the discharge port 170 formed by the exhaust guide member 430 and the vertical guide part 420 of the upper frame 400 and flow by the rotational movement of the blower fan 330. The air flows upward along the inner surface of the wind direction guide 340 to heat the air discharged upward.

The heater support plate 442 is integrally formed at the front end of the electric heater 440. Therefore, the electric heater 440 integrally formed on the rear surface of the heater support plate 442 penetrates through the heater installation hole 436 formed in the front plate 434 of the exhaust guide member 430 and the heater fingerboard. 442 shields the heater installation port 436.

In the center of the vertical guide portion 420 is formed a heater fixing groove 422 recessed to the rear. The rear end of the electric heater 440 is fixed to the heater fixing groove 422 and the mounting of the electric heater 440 is finished.

The electric heater 440 may be selectively mounted according to the user's intention. When the electric heater 440 is not mounted, the heater installation hole 436 of the exhaust guide member is provided with a separate shielding plate (not shown). Is not shielded).

The control box 450 is formed in front of the exhaust guide member 430. The control box 450 is equipped with a plurality of control parts for controlling the operation of the air conditioner, such as the voltage transformer 452, the main board 454, etc., the power switch 456 is provided at the left end. The power switch 456 is exposed to the outside by the switch exposure hole 116 formed in the upper front panel 110 ′. The upper surface of the control box 450 is shielded by the upper panel 150.

Meanwhile, a connection duct (not shown) is mounted to the suction port 210 and the discharge port 170. That is, when the outer case 100 does not directly contact the space for air conditioning, a connection duct (not shown) connecting the outer case 100 and the space for air conditioning includes the inlet 210 and the outlet ( 170).

In addition, the inside of the outer case 100 is provided with a heat insulating member (not shown) for heat insulation with the outside, such a heat insulating member (not shown) is mounted in close contact with the inner surface of the outer case 100.

Hereinafter, the operation of the indoor unit of the air conditioner configured as described above will be described.

First, in order to use an air conditioner, a user applies external power to an indoor unit. As such, when external power is applied to the indoor unit, external power is applied to a plurality of components mounted inside the outer case 100.

When external power is applied to a plurality of components mounted inside the outer case 100, power is applied to the fan motor 310. The fan motor 310 generates rotational power by an external power source applied thereto. The rotational power generated by the fan motor 310 is transmitted to the blowing fan 330 which is axially coupled with the fan motor 310.

The blowing fan 330, which receives the rotational power of the fan motor 310, rotates to generate suction force to the left / right side, and air is introduced into the left and right sides of the wind direction guide 340 by the suction force.

At the same time, a suction force is generated inside the outer case 100, and the air in the space for air conditioning is sucked into the outer case 100 through the suction port 210 by the suction force. At this time, the air in the space for air conditioning is filtered through the filter 260, dust and foreign matter contained in the air.

Air in the space for air conditioning filtered by the filter 260 flows upward and passes through the indoor heat exchanger 240. That is, while passing between the cylindrical pipe having a predetermined diameter forming the indoor heat exchanger 240, it is heat exchanged with the refrigerant which is a working fluid flowing inside the indoor heat exchanger (240).

At this time, condensed water is generated on the surface of the indoor heat exchanger 240 by a temperature difference generated by heat exchange between air and a refrigerant in a space for air conditioning, and the condensed water is collected in the drain pan 220. The condensed water collected in the drain pan 220 is discharged to the outside of the outer case 100 through the drain part 222.

On the other hand, the air heat-exchanged while passing through the indoor heat exchanger 240 is flowed to the central portion formed in the perforations on the left and right sides of the wind direction guide 340 of the blowing fan 330 by the rotational movement of the blowing fan 330 It is discharged to the outside. The heat-exchanged air discharged to the outside of the blower fan 330 is guided upward along the inner circumferential surface of the wind direction guide 340 and discharged to the upper side of the blower 300 through the opening 342.

Heat exchanged air guided by the wind direction guide 340 and discharged upward is flowed upward through the discharge hole 412 and guided upward by the vertical guide part 420 and the exhaust guide member 430. Flows into. Heat-exchanged air flowing upward is discharged to the space for air conditioning through the discharge port 170. Heat exchanged air discharged through the discharge port 170 may be guided by a separate connection duct (not shown) and discharged into a space for air conditioning.

In addition, the air in the space for air conditioning suctioned through the inlet 210 is filtered by the filter 260.

Hereinafter, the assembly process of the blower 300 will be described with reference to FIGS. 4 to 7.

First, as shown in FIG. 6, the fan motor 310 and the motor mount 360 are coupled in a completely separated state. More specifically, as shown in FIG. 7, the fan motor 310 is inserted into the fixing means 362, and then the fastening members are fastened to the pair of fastening pieces 363 so as to be close to each other. Pressure is generated on the outer circumferential surface of the fan motor 310.

When the fastening piece 363 is as close as possible, the fan motor 310 is not separated from the motor mount 360.

Thereafter, the recess 382 of the dustproof port 380 is inserted into the coupling part 366, and then the motor shaft 312 is inserted into the shaft coupling hole 333, and the fan motor 310 and the motor shaft ( 312). At this time, the orifice 350 should be located between the blowing fan 330 and the support means 364 as shown in FIG.

When the fan motor 310 and the motor mount 360 are completely combined, the orifice 350 and the motor mount 360 are simultaneously fixed to the wind direction guide 340. That is, the through hole 354 and the coupling part 366 drilled in the orifice 350 are positioned to draw the same linear concentric circle as the mount fastening part 344, and then the mount fastening part 344 is formed through the through hole ( 354 and the coupling portion 366, more precisely through the hole 384 of the dustproof opening 380 at the same time.

When the air blower 300 is completed as described above, the air blower 300 is in a state as shown in FIG. 5. When the nut N is fastened to the screw thread 346, the motor mount 360 is not separated from the wind direction guide 340. The fan motor 310 is positioned at the center of the orifice hole 352 to maintain the state spaced apart from the orifice 350.

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.

As described above, in the indoor unit of the air conditioner according to the present invention, the motor mount, which is a main component of the blower, is composed of a single part, and the fixing of the fan motor is completed by fastening a single fastening member.

Therefore, since the number of parts of the motor mount is significantly reduced, there is an advantage that the manufacturing cost is reduced.

In addition, there is an advantage that the assembly is easy and the productivity is improved.

In addition, there is an advantage that the vibration and noise of the blowing fan is further reduced by further comprising a dustproof port and configured to make the fixing means and the fan motor in line contact.

Claims (12)

An indoor heat exchanger for heat-exchanging indoor air with a refrigerant that is a working fluid; It is configured to include a blower for forcing the air flow inside the outer case forming the appearance, The indoor unit of the air conditioner, characterized in that provided on one side of the blower is formed of a single component to restrain the flow of the fan motor. According to claim 1, wherein the blower, A blowing fan axially coupled with the fan motor to force an air flow; A wind direction guide accommodating the blower fan to guide the direction of air flow generated by the blower fan; An orifice attached to one side of the wind direction guide to guide air outside the wind direction guide into the air; And an outer end coupled to the wind direction guide while covering the outer surface of the fan motor to support the fan motor to be fixed to the wind direction guide. The indoor unit of an air conditioner according to claim 1, wherein the motor mount is coupled to surround a center portion of an outer surface of the fan motor. The method of claim 2, wherein the motor mount, Fixing means fixed in contact with an outer surface of the fan motor; An indoor unit of an air conditioner, comprising a; protruding outward from the outer surface of the fixing means, one side is coupled to the orifice to support the load of the fan motor. The indoor unit of an air conditioner according to claim 2, wherein the fan motor is located inside the wind direction guide. According to claim 4, One side of the fixing means, Indoor unit of the air conditioner is coupled to each other by fastening the fastening member is provided with a fastening piece for regulating the separation of the fan motor. The indoor unit of the air conditioner according to claim 4, wherein an inner circumferential length of the fixing means is smaller than an outer circumferential length of the fan motor. The indoor unit of an air conditioner according to claim 4, wherein the supporting means is provided in plural, and the plurality of supporting means is radially formed on an outer circumferential surface of the fixing means. The indoor unit of an air conditioner according to claim 8, wherein the plurality of support means are formed at the same angle to each other. The method of claim 4, wherein the support means, A coupling part coupled to one side of the wind direction guide so that the motor mount is not separated from the wind direction guide; Indoor unit of the air conditioner is formed between the coupling portion and the fixing means comprises a restraining portion for generating a restraining force on the fan motor inserted into the fixing means. According to claim 4, At one side of the wind direction guide, The indoor unit of the air conditioner, characterized in that it is provided in one direction protruding through the orifice and the coupling portion at the same time to guide the mounting position of the orifice and the motor mount. The method of claim 10, wherein the one side of the coupling portion, Indoor unit of the air conditioner, characterized in that the vibration isolator is provided so that the vibration generated during the operation of the fan motor is not transmitted to the orifice.

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