KR20070069533A - Indoor unit of air conditioner - Google Patents

Abstract

An indoor unit of an air conditioner is provided to integrate a cover covering air outlets into a frame of a blower unit for removing any additional cover assembling steps after mounting a front panel or a top panel and simplify the change of duct connection for the outlets by changing the frame direction. An indoor unit of an air conditioner includes a main body(10) formed with a plurality of air outlets(14,16) at different surfaces respectively and mounted with a heat exchanger(30), wherein the air outlets are positioned at a surface facing the heat exchanger and a surface perpendicular to a surface to which the heat exchanger is mounted. A blower unit(20) is connected to one of the air outlets. A cover(21) covers the other one, wherein the cover is integrally formed with a frame of the blower unit.

Description

Indoor unit of air conditioner

1 is a perspective view showing the indoor unit of the duct type air conditioner according to the present invention

2 is a partially exploded perspective view showing the inside of the indoor unit of the duct type air conditioner according to the present invention;

Figure 3 is a partially exploded perspective view showing the legs of the indoor unit of the duct type air conditioner according to the present invention

Figure 4 is a perspective view of a side panel according to the present invention

Figure 5 is an exploded perspective view showing a part inside the electric unit according to the present invention

Figure 6 is an enlarged perspective view showing a fixing structure of the indoor unit electrical unit according to the present invention

7 is a perspective view showing a blowing unit of the duct type air conditioner according to the present invention

8 is a cross-sectional view showing a blowing unit according to the present invention, Figure 9 is a cross-sectional view showing a motor according to the present invention

10 is a perspective view showing a motor bracket according to the present invention

11 is a front perspective view showing a motor bracket according to the present invention;

12 is a perspective view showing a fan of the blowing unit according to the present invention;

13 is a plan view of a blowing unit fan according to the present invention.

14 is a partially cutaway perspective view of the rotor of the motor according to the present invention.

15 is an exploded perspective view illustrating a stator of a motor according to the present invention.

16 is a perspective view showing a stator of the motor according to the present invention

17 is a perspective view showing another installation example of the indoor unit duct according to the present invention

18 is an exploded perspective view of a side panel of the indoor unit separated according to the present invention;

19 is a perspective view of an indoor unit according to a second embodiment of the present invention;

20 is a perspective view showing the duct connection of the indoor unit according to a second embodiment of the present invention

21 is a cross-sectional view showing a blowing unit according to a second embodiment of the present invention.

22 is a perspective view showing the indoor unit of the air conditioner according to the prior art

23 is a cross-sectional view showing the indoor unit of the air conditioner according to the prior art

<Explanation of symbols on main parts of the drawings>

10: main body 12: suction port

14 discharge port of front panel 16 discharge port of top panel

20: blower unit 21: cover

22: blower unit frame 23: cover

24: fan 28: fan housing

30: heat exchanger 32, 34: bracket

40: electric field unit 42: control box

44: flange 45: main PC ratio

47: catching part 50: base

52: front panel 54: side panel

55, 56: corner frame 58: top panel

60: leg 61: space

70: motor 71: shaft

72: rotor 73: rotor bushing

75: rotor housing 76; Magnet

80: stator 82: core plate

82a: Teeth 84: Coil

86: insulator 86a: insulator upper

86b: insulator lower 87: fastening portion

90: supporter 91: bearing

92: bearing housing 94: supporter fixing portion

95: bolt 96: stator fixing portion

200: duct 220: blowing unit

224, 234: fan 228, 238: fan housing

270: motor 271: shaft

The present invention relates to an indoor unit of a duct type air conditioner, and more particularly, a plurality of discharge ports are formed in a main body, and a blower unit is connected to any one of the plurality of discharge ports. The cover relates to an indoor unit of the air conditioner integrally formed in the blowing unit.

In general, an air conditioner is a device for supplying air-conditioned air to an indoor space, and is divided into an integrated type in which components are provided in one product and a separate type composed of an indoor unit and an outdoor unit.

In recent years, due to the space occupied by the indoor unit, the duct type air conditioner for mounting the indoor unit on a ceiling, a wall, a veranda, or the like outdoors on a rooftop, and supplying air-conditioned air from the indoor unit to the room through a duct increases. to be.

22 is a perspective view showing an indoor unit of the air conditioner according to the prior art, Figure 23 is a cross-sectional view showing the indoor unit of the air conditioner according to the prior art. The indoor unit of a conventional duct type air conditioner includes a main body 3 having an inlet 1 and an outlet 2, a blower unit 4 installed inside the main body 3 and connected to the outlet 2; And a heat exchanger 5 installed inside the main body 3 to exchange heat with the sucked air, and a duct 6 connected to the discharge port 2.

However, since the air conditioner according to the prior art has only one discharge port 2 formed in the main body 3 and the discharge port 2 has only one direction, the air conditioner or the various ducts 6 are installed. There is a problem that can not be flexibly applied to the installation direction.

The present invention has been made to solve the above problems, an object of the present invention is to provide an indoor unit of the air conditioner that can select any one of the discharge port formed in the main body according to the installation direction of the duct.

Another object of the present invention is to provide an indoor unit of an air conditioner capable of repairing a motor by disassembling only the side panel without disassembling the whole body.

In another aspect, the present invention is to provide an indoor unit of an air conditioner that does not require a separate assembly process for shielding the discharge port by integrating a cover for shielding the discharge port formed in the main body with the blower unit.

In another aspect, the present invention is to provide a indoor unit of the air conditioner is easy to move through a forklift, such as by installing a leg under the base and easy to install the leg.

It is another object of the present invention to provide an indoor unit of an air conditioner having a BLDC motor in which a stator is assembled and fixed to a supporter.

In another aspect, the present invention is to provide an indoor unit of the air conditioner for fixing the control box of the electronic unit through the joint joint.

The indoor unit of the air conditioner according to the present invention for solving the above technical problem and the plurality of discharge ports are formed on different surfaces; A blowing unit connected to any one of the plurality of discharge ports; And a cover for shielding at least one outlet of the plurality of outlets, wherein the cover is integrally formed with the blower unit.

Here, the indoor unit is configured to include a heat exchanger, wherein the plurality of discharge ports are characterized in that located on the surface opposite to the heat exchanger and the surface perpendicular to the surface on which the heat exchanger is installed.

The blower unit includes a blower unit frame fixed to the main body, and the cover is integrally installed on the blower unit frame.

In particular, the cover is provided with two, each cover is provided on each of the surfaces of the air blowing unit frame facing each other.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

 1 is a perspective view showing the indoor unit of the duct type air conditioner according to the present invention, Figure 2 is a partially exploded perspective view showing the inside of the indoor unit of the duct type air conditioner according to the present invention.

As shown in FIG. 1 or 2, the indoor unit of the air conditioner according to the present invention includes a main body 10 having an inlet 12 and a plurality of discharge ports 14 and 16, and the inside of the main body 10. A heat exchanger (30) installed in the blower unit (20) connected to any one of the plurality of discharge ports (14) and (16), and installed to shield the inlet (12) and heat-exchanging with the sucked air; Is installed on the main body 10 is configured to include an electric component unit 40, the electric component is installed to control the air conditioner.

The main body 10 is provided with a base panel 50, a front panel 52 which is installed upright from the front of the base panel 50, and an upright installation from the side of the base panel 50. The top panel 58 is connected to the side panel 54, the front panel 52, and the side panel 54 and installed on the base panel 50.

Here, four corners of the main body 10 are provided with corner frames 55 and 56, respectively.

In particular, the corner frames 55 and 56 have a lower end connected with the base panel 50, a side end connected with the front panel 52 or the side panel 54, and an upper end thereof with the top panel 58. Connected with

The discharge holes 14 and 16 are formed in the front panel 52 and the top panel 58, respectively.

In addition, the inlet 12 is formed between the corner frame 56 located at the rear side of the main body 10, the heat exchanger 30 is installed to shield the inlet 12, the heat exchanger 30 ) Is located inside the main body 10.

A leg 60 supporting the base panel 50 is installed below the base panel 50.

3 is a partially exploded perspective view showing the legs of the indoor unit of the duct type air conditioner according to the present invention.

Leg 60 according to the present invention, as shown in Figure 3, is formed bent in the 'U' shape, the end is fixed to the lower end of the base panel 50.

Here, the legs 60 are fastened and fixed to both sides of the base panel 50, respectively, and are formed in a 'U' shape to form a space 61 therein.

In particular, the indoor unit is a large indoor unit to which the ducts are connected, and when a forklift (not shown) is used, the arm of the forklift is inserted into a space 61 formed by the leg 60.

That is, the legs 60 are installed at a predetermined distance apart so that the arms of the general forklift can be inserted, and the space 61 is formed wide enough to allow the arms to be inserted.

Thus, the main body 10 of the indoor unit according to the present invention is supported by the leg 60 and is spaced apart from the ground by a predetermined distance, and the leg 60 has an effect of securing a space into which the forklift arm is inserted. .

In addition, since the leg 60 is fastened and fixed to the base panel 50 by bolts (not shown) or screws (not shown), the leg 60 is easily installed.

4 is a perspective view showing a side panel according to the present invention, Figure 5 is a partially exploded perspective view showing the interior of the electric unit according to the present invention.

As shown in FIG. 4 or 5, the electric unit 40 according to the present invention is installed inside the main body 10 and is shielded by the side panel 54 and is not exposed to the outside.

The side panel 54 is positioned between the corner frames 55 and 56 and is fastened and fixed to the corner frames 55 and 56, the base panel 50, or the top panel 58.

In addition, a handle 53 is installed on the side panel 54, and the handle 53 allows the user to more easily support the side panel 54 when the side panel 54 is separated and assembled. .

Wherein the handle 53 is inserted into a hole (not shown) formed in the side panel 54 is fixed.

Thus, the handle 53 includes a fitting portion 53a into which the side panel 54 is inserted into and inserted into a hole, and an adhesive portion 53b in close contact with an outer surface of the side panel 53. A groove 53c is formed in the fitting portion 53a toward the fitting portion 53a.

In this case, the user inserts a hand into the groove 53c to support the side panel 54.

In addition, although not shown, the side panel shielding the electrical unit 40 is often opened during the service of the service provider, by connecting the upper end hinged to the corner frame 55 in the up / down direction or left / right direction It may be installed in an open structure.

6 is an enlarged perspective view illustrating a fixing structure of the indoor unit electric power unit according to the present invention.

The electrical unit 40 is, as shown in Figure 5 or 6, after fitting to the corner frame 55, 56, is fastened and fixed by bolts or screws.

Here, the electric unit 40 has a control box 42 fitted to the corner frames 55 and 56, a main PCB 45 installed in the control box 42, and the air blowing unit. And a motor driver (not shown) for supplying power to the unit 20, and an IPM (IPM: Intelligent Power Module) for supplying DC power to the motor driver (not shown).

The IPM is an IGBT (Insulated Gate Bipolar Transistor) and a driver IC for driving the same in a single package. Recently, IPM has been developed and sold for various devices as a power management solution for high-capacity motor control. In addition, the IPM includes various protection circuits such as a driving driver IC, an overcurrent protection circuit, a short circuit protection circuit, and is advantageous in reducing the size of the motor driver and implementing low power and miniaturization.

The control box 42 is formed in a box shape, the main PC 45 is installed therein, and a side direction in which the side panel 54 is installed is opened. In particular, the control box 42 is shielded when the side panel 54 is installed and is not exposed to the outside.

Here, the flanges 44 are formed at both side ends of the control box 42, and the flanges 44 are bent to the corner frame 55, and the ends of the flanges 44 are formed at the control box ( It is formed to extend long outside the opening of 42).

On the other hand, a flange 57 is formed at the inner end of the corner frame 55 bent toward the flange 44 side of the control box 42, the groove 57a in the flange 57 in the up / down direction Is formed.

In this case, the flange 44 of the control box 42 is formed with a locking portion 47 which is offset from the flange 44 of the corner frame 55, and the locking portion 47 is the corner frame 55. Is inserted into and fixed to the groove 57a.

On the other hand, the engaging portion 47 is formed with a groove 47a so that the flange 57 of the corner frame 55 can be inserted.

Therefore, the flange 57 of the corner frame 55 is formed in the front / rear direction, the locking portion 47 is formed in the left / right side bar, they are fixed staggered with each other.

In addition, the locking portions 47 of the control box 42 are formed at both ends of the front and rear, respectively, and both ends of the control box 42 are respectively at the flanges 57 of the corner frames 55 and 56, respectively. Stuck across.

Thus, the assembler inserts the control box 42 into the main body 10 and then locks the catching portion 47 to the flange 57 of the corner frames 55 and 56 in a staggered manner. It is easy to install.

Then, if additional fixing is required, the assembler fastens the fitted control box 42 to the corner frame 55 through a bolt (not shown), which is a fastening member.

7 is a perspective view showing a blowing unit of the duct type air conditioner according to the present invention.

Blowing unit 20 according to the present invention, as shown in Figure 1, 2 or 7, the blowing unit frame 22 is fixed to the main body 10, and the air inside the main body 10 discharge port ( A fan 24 for discharging to the fan 14, a motor 70 for driving the fan 24, and a fan housing 28 for guiding the air blown by the fan 24 to the discharge port 14. It is configured to include.

Here, the blowing unit 20 is a sirocco fan that sucks air from both sides of the fan housing 28.

The blower unit frame 22 is for fixing the fan housing 28 to the base 50, and is formed in a frame shape of a rectangular parallelepiped, and the fan housing 28 is fastened and fixed therein.

Here, the blower unit frame 22 is provided with a cover 21 to shield any one of the discharge ports 14 and 16 formed in the top panel 58 or the front panel 52.

That is, as illustrated in FIG. 7, when the front side discharge port 14 is opened, the cover 21 installed in the blower unit frame 22 shields the discharge hole 16 formed in the top panel 58.

Here, the cover 21, 23 is installed on the upper and lower surfaces of the blowing unit frame 22, the assembly or installer by rotating the blowing unit frame 22, the fan housing 28 is fixed to the Any one of the covers 21 and 23 provided in the blower unit frame 22 shields either the front discharge port 14 or the upper discharge port 16.

Wherein the cover 21, 23 is provided to form a continuous surface with the surface of the top panel 58 or the front panel 52, protrudes from the top panel 58 or the front panel 52 It forms a smooth side.

In particular, the covers 21 and 23 are integrally assembled to the blowing unit frame 22 and installed on the base 50. After installation of the blowing unit 20, the front panel 52 or the The top panel 58 is installed, and the shielding process of the discharge ports 14 and 16 is performed in the process of installing the blower unit 20.

Thus, the air conditioner according to the present invention does not require a process of installing a separate cover when shielding any one of the discharge ports 14.

8 is a cross-sectional view showing a blowing unit according to the present invention, Figure 9 is a cross-sectional view showing a motor according to the present invention, Figure 10 is a perspective view showing a motor bracket according to the present invention, Figure 11 is the present invention 12 is a perspective view showing a fan of the blower unit according to the present invention, FIG. 13 is a plan view of a blower fan according to the present invention, and FIG. 14 is a perspective view of the motor according to the present invention. The rotor is a partial cutaway perspective view of the rotor shown, FIG. 15 is an exploded perspective view showing a stator of the motor according to the present invention, and FIG. 16 is a perspective view showing a stator of the motor according to the present invention.

As shown in FIGS. 8 to 16, the blower unit 20 according to the present invention uses a brushless DC motor 70 to drive the fan 24, and the BLCD motor 70 is a supporter. It is fixed to the fan housing 28 by 90.

The fan housing 28 is fixed to the blowing fan frame (22 in FIG. 7), and suction inlets 28a and 28b are formed on the left and right sides, respectively, and any one of the suction ports 28a and 28b. The motor 70 is installed on the side.

Here, the suction openings 28a and 28b of the fan housing 28 are respectively recessed inwardly to form a shroud.

The fan 24 is a kind of cross flow fan, which is formed to be long in the left / right direction in this embodiment, and the motor 70 is fixed to the fan housing 28 and connected to the fan 24.

As shown in FIG. 8 or 9, the motor 70 includes a shaft 71 connected to the fan 24, a rotor 72 connected to the shaft 71, and the rotor 72. It is configured to include a stator (80) positioned inside the rotor 72 and spaced apart from the rotor (72), and a supporter (90) for fixing the stator (80) to the fan housing (28).

The shaft 71 is fastened and fixed to the rotor 72 and positioned at the center of the fan 24, and fastened and fixed to the fan 24.

Here, the rotor 72, as shown in Fig. 9 or 14, the rotor bushing 73 is coupled to the shaft 71, and the rotor bushing 73 is coupled to surround the stator 80 It is configured to include a rotor housing 75 is installed so that the rotor housing 75, the magnet 76 is spaced apart from the stator 80 by a predetermined interval.

Here, after the serration (not shown) formed at the center of the rotor bushing 73 and the serration (not shown) of the shaft 71 are engaged with each other, the shaft 71 and the rotor bushing 73 are fastened. It is fixed by the bolt 71a which is a member.

In particular, the rotor bushing 73 is preferably formed of an insulating material.

The rotor bushing 73 and the rotor housing 75 are fastened and fixed by bolts 73a, and the rotor bushing 73 and the shaft 71 fixed to the rotor housing 75 are the rotor housing. Position it at the center of (75). In addition, the stator 80 located inside the rotor housing 75 is also installed to have the same shaft center as the shaft 71.

On the other hand, although not shown, the rotor bushing may be coupled to the outside of the rotor housing.

The magnet 76 is fixed to the inner surface of the rotor housing 75 formed in a cylindrical shape, and rotates in interaction with the stator 80.

Here, the magnet 76 is seated on the end 75a formed on the inner wall of the rotor housing 75, and is formed in a circular shape along the inner wall of the rotor housing 75.

On the other hand, the rotor housing 75, as shown in Figure 14, the bottom (75a) forming a substantially disk shape and the side wall 75b extending in a direction substantially perpendicular to the edge of the bottom surface 75a. In the case of a steel sheet material, the bottom 75a and the side wall 75b are integrally formed by press working.

At this time, the bent portion 75c is bent so that the opening end of the side wall 75b is wound to the outside, and the bent portion 75c increases the rigidity of the rotor side wall 75b to generate a rotor during high speed rotation. Suppression of noise and consequent noise generation are suppressed.

In addition, a hub portion 75d on which the rotor bushing 73 is installed is formed at a bottom 75a on which the shaft center of the rotor housing 75 is formed, and the hub portion 75d is disposed outside the rotor housing 75. Cooling fins 75e for guiding air therein are formed.

Here, the cooling fins 75e are lancing from the rotor housing 75 formed integrally and bent into the rotor housing 75, and a plurality of cooling fins 75e are formed radially with respect to the center of the shaft. do.

In addition, a plurality of mark nets 76 are installed inside the rotor housing 75 sidewalls 76b.

In addition, a hole is formed in the hub portion 75d, and the rotor bushing 73 is installed through the hole of the hub portion 75d.

9, 15, or 16, the stator 80 includes a core plate 82 having a tooth 82a formed thereon, a coil 84 wound around the core plate 82, and The coil 84 is configured to include an insulator 86 that wraps around the wound coreplate 82.

The core plate 82 is formed in one long band shape as a whole, while being wound in a spiral shape, the core plate 82 is formed in an annular shape.

Here, the teeth 82a protruding outward from the core plate 82 are disposed radially while the core plate 82 is processed in an annular shape, and the core plates 82 are stacked in multiple layers.

The coil 84 is wound around the teeth 82a stacked in multiple layers, and the winding method of the coils 84 wound on the teeth 82a is either concentrated or distributed.

As shown in FIG. 15 or FIG. 16, the insulator 86 is fabricated with each member and assembled to surround the core plate 82.

Thus, the insulator 86 is composed of an insulator upper 86a coupled to the upper side of the core plate 84 and an insulator lower 86b coupled to surround the lower side of the core plate 84.

Here, the insulator 86 may be integrally formed by molding unlike the present embodiment, and in this case, the core plate is processed in the state of being inserted into the resin.

On the other hand, the insulator 86 of the stator 80 is formed to protrude further up and down than the wound coil 84.

For example, the rib 86c provided in the tooth 82a of the insulator 86 is formed to protrude further in the up / down direction than the coil 84 wound on the tooth 82a.

In addition, the insulator upper 86a and the lower 86b are formed with a fastening portion 87 having fastening holes 87a formed at positions opposite to each other, and the fastening portions 87 are inward of the core plate 82. Three or more protrusions are formed.

In addition, a metal tube 87b is press-fitted into the fastening portion 87 so as to pass through the insulator upper 86a and the lower 86b, and the insulator upper 86a and the lower 86b are pressed by the metal tube 87b. The core plate 82 is interposed therebetween to be fixed.

At this time, the thickness of the fastening portion 87 of the stator 80 is formed to be 20% or more of the thickness of the laminated core plate 82, the fastening portion 87 of the insulator 86 is laminated It should be formed to be 20% or more of the thickness of the core plate 82, it can sufficiently withstand the vibration generated when driving the motor.

On the other hand, the stator 80 is installed to be inserted into one side suction port 28a of the fan housing 28 through the supporter 90.

The supporter 90 includes a bearing housing 92 so as to support the shaft 71 as illustrated in FIGS. 8 to 11.

Thus, the supporter 90 has a bearing housing 92 in which bearings 91 supporting the shaft 71 are installed therein, and extends radially outward of the bearing housing 92 so as to extend the fan. It comprises a supporter fixing portion 94 fixed to the housing 28, and the stator fixing portion 96 to which the stator 80 is fastened and fixed.

Here, the bearing housing 92 has a long hole 92a formed to penetrate the shaft 71, and a plurality of bearings 91 supporting the outer circumferential surface of the shaft 71 are installed therein.

The stator fixing part 96 is a part which is fastened and fixed to the stator 80 by a bolt or the like, and is integrally formed with the bearing housing 92 and formed in a plate shape extending outward from the bearing housing 92. do.

Here, the stator fixing part 96 is provided with a hole 96a so that the fastening member fastened to the stator 80 can be inserted therein, and a wide through hole for dissipating heat on the stator 80 side. 96b) is formed.

The supporter fixing part 94 is formed in a tricycle form, is disposed radially from the outer circumferential surface of the bearing housing 92, and the bolt 95 is fastened to the hole 94a formed at the end.

Here, a bush 97 is interposed between the end of the supporter fixing portion 94 and the fan housing 28, and the bush 97 vibrates between the supporter fixing portion 94 and the fan housing 28. Absorb it.

Thus, the bush 97 is formed of an elastic material and is penetrated by the bolt 95 fastened to the supporter fixing part 94.

The supporter 90 is preferably formed by casting with a metal material such as aluminum.

The supporter 90 further includes a rib 98 connected to the supporter fixing part 94 and the bearing housing 92, and the supporter fixing part 94 is supported by the rib 98 to support the supporter. The structural stiffness of 90 is increased.

The shaft 71, which is supported and rotated by the bearing housing 92, is connected to the fan 24 installed inside the fan housing 28.

As illustrated in FIG. 8, 12, or 13, the fan 24 includes a blade 24a for blowing air to the discharge ports 14 and 16 of the fan housing 28 and the blade 24a. It comprises a plate 24b for connecting and fixing them.

Here, the plate 24b and the shaft 71 are connected by a bush 27 coupled in the form of a coupling of the shaft joint.

Thus, a hole (not shown) is formed in the bush 27 to penetrate the shaft 71, and the shaft 71 is inserted through the bush 27.

The bushes 27 are located at both sides of the plate 24b, and the shafts 71 are installed through the respective bushes 27 located at both sides of the plate 24b.

Thus, the bush 27 includes a cylindrical portion 27a through which the shaft 71 penetrates, and a flange portion 27b protruding radially from the cylindrical portion 27a to be in close contact with the plate 24b. .

Here, the rivet 27c is provided in the flange part 27b of the bush 27, and the plate 24b and the flange part 27b of each bush 27 are fixed by the rivet 27c.

A bolt 27d is inserted into the cylindrical portion 27a of the bush 27 and fastened to the shaft 71.

Hereinafter, the assembling process of the duct type air conditioner according to the present invention will be described in more detail with reference to FIGS. 1 to 5.

First, the coordinator fastens and fixes the leg 60 to the lower surface of the base 50, and fastens and fixes the blower unit frame 22 to which the blower unit 20 is fixed to an upper surface of the base 50.

Here, the coordinator adjusts the direction of the blower unit frame 22 so that the discharge port of the fan housing 28 coincides with any one of the discharge ports 14 and 16 formed in the front panel 52 or the top panel 58.

On the other hand, the blower unit frame 22 is provided with a cover 21 for shielding any one of the discharge port 14, 16, when the upper discharge port 16 is blocked, the cover 21 is blown It is located on the upper surface when the unit 20 is installed.

And the assembler installs the corner frame 55 in each of the four corners of the base 50, and installs the electrical equipment unit 40 on one side.

Here, looking at the installation process of the electronic unit 40 with reference to Figures 4 to 6, the assembler while moving the control box 42 of the electrical unit 40 from the upper side to the lower side of the control box 42 The engaging portions 47a respectively formed in the lower portion are caught by the grooves 57a of the flanges 57 formed in the corner frames 55. Thus, when the locking portion 47a of the control box 42 is caught and fixed to the flange 57 of the corner frame 55, the assembler is a bolt (not shown) that is a fastening member to penetrate the flanges 47 and 57. ), Etc.

Then, the assembler connects the wires installed in the control box 42 with the motor 70 of the blower unit 20 so that the motor 70 is controlled by the electric unit 40.

The side panel 54 is assembled between the corner frames 55 and 56 so that the electric unit 40 is shielded.

1 to 5 again, the assembler installs the heat exchanger 30 on the back of the main body 10.

Here, the heat exchanger 30 has a bracket 32 is installed at the edge to be fastened to the corner frame 56 located on the rear side of the main body 10, the bracket 32 and the corner frame 55 ) To fix the heat exchanger (30).

And the bracket 34 is attached to the corner frame 56 located on the rear side of the main body 10, the heat exchanger 30 is installed so that a duct (not shown) can be connected.

Meanwhile, a support valve mechanism 35 is installed in the corner frame 56 where the control box 42 is installed so that a support valve (not shown) connected to the heat exchanger 30 may be installed.

Thus, the refrigerant pipe (not shown) connected to the outdoor unit is connected to the support valve mechanism 35, and the support valve mechanism 35 and the heat exchanger 30 are connected to each other.

Next, the assembler assembles the remaining side panel 54 and the front panel 52 to each corner frame 55.

And the assembling assembly of the main body 10 by assembling the top panel 58 after the side panel 54 and the front panel 52 is assembled.

Here, the cover 21 which shields the discharge port 16 of the top panel 58 is integrally coupled with the blower unit frame 22. When the assembler assembles only the top panel 58, the main body 10 Assembly is completed.

In particular, the top surface of the top panel 58 according to the present invention is formed in a smooth plane, the bracket 52a is installed on the top surface of the top panel 58 to connect the duct 200.

And since the cover 21 according to the present invention is not a structure that is fixed to the top panel 58, there is no need for any bent portion or step for seating the cover 21.

That is, the cover 21 is seated on the blower unit frame 22 and fixed, and the top panel 58 is seated on the installed blower unit 20 so that the discharge port 16 and the cover 21 coincide with each other. As much as possible.

The cover 21 coincides with the discharge port 16 to form a continuous plane with the top panel 58.

17 is a perspective view showing another installation example of the indoor unit duct according to the present invention, Figure 18 is an exploded perspective view of the side panel of the indoor unit is separated.

Next, the installation process of the indoor unit according to the present invention will be described with reference to FIGS. 1 to 7.

First, as shown in FIG. 1, when the discharge port 14 of the front panel 52 is opened and the discharge port 16 of the top panel 58 is closed, the discharge port 14 of the front panel 52 is closed. In the case where the duct 200 is connected, the installer installs the bracket 52a on the main surface of the discharge port 14, and then connects the front panel 52 and the duct 200 through the bracket 52a. do.

On the other hand, as shown in Figure 17, when the installation direction of the duct 200 and the discharge port 14 open to the main body 10 does not match, the installer disassembles the main body 10 to The position and installation direction of the blower unit 20 are switched.

Thus, the installer first separates the top panel 58 to open the inside of the main body 10, and then separates the base 50 and the blowing unit frame 22.

The installer rotates the separated blower unit frame 22 so that the outlet of the fan housing 28 faces upward, and then fixes the blower unit frame 22 to the base 50 again.

At this time, the cover 23 attached to the lower side of the blowing unit frame 22 is exposed to the front of the main body 10 by the rotation of the blowing unit frame 22, the exposed cover 23 is the The discharge port 14 of the front panel 52 is closed.

Thus, the discharge port of the fan housing 28 is located upwards, and the installer reassembles the top panel 58 after fixing the blower unit 20 so that the discharge port 28 and the top of the fan housing 28 are reassembled. The discharge port 16 of the panel 58 is matched.

Thereafter, the installer removes the bracket 52a attached to the front panel 52 and installs it on the top panel 58, and then connects the duct 200.

Next, the separation process of the motor according to the present invention will be described in more detail with reference to FIGS. 18 or 8 to 11.

First, when a failure occurs in the indoor unit and a service provider needs to separate the motor 70 installed inside the main body 10, the service provider separates the side panel 54 of the main body 10 from the corner frame 55. do.

Here, the service provider separates the corner frame 55 and the side panel 54 by loosening the bolts installed on the side panel 54. At this time, the service provider supports the handle 53 installed on the side panel 54 alone. The side panel 54 is removed while preventing the side panel 54 from falling.

And when the motor 70 is installed on the electric field unit 40 side, the service provider separates the electric field unit 40 from the corner frame 55.

Subsequently, when the control box 42 of the electronic unit 40 is separated, the motor 70 installed in the blower unit 20 is exposed to the service provider, and the service provider exposes the exposed motor 70 to the fan housing. Can be separated from (28).

Thus, the service provider can easily separate the fan housing 28 and the motor 70 by detaching the bolt 95 of the supporter 90 connecting the fan housing 28 and the motor 70.

In particular, the service provider separates the rotor 72 of the motor 70 by separating the rotor bushing 73 and the bolt 71a that couples the shaft 71 to the rotor 72 of the motor 70. It can be easily separated.

In addition, when the rotor 72 is separated, the part of the stator 80 is also exposed to the service provider, so that the service provider can easily check for damage or failure.

That is, the indoor unit according to the present invention may not only separate the motor 70 from the state in which the air blowing unit 20 is mounted, but also remove the motor 70 from the state in which the motor 70 is installed. By removing only the rotor 72, it is possible to check the internal state of the motor 70.

19 is a perspective view showing an indoor unit according to a second embodiment of the present invention, Figure 20 is a perspective view showing a duct connection state of the indoor unit according to a second embodiment of the present invention, Figure 21 is a second view of the present invention A sectional view of a blowing unit according to an embodiment is shown.

19 to 21, unlike the first embodiment, in the second embodiment of the present invention, a plurality of ducts 200 and 300 are installed in the main body 10, and the respective ducts 200 are provided. A blowing unit 220 for discharging air to the respective ducts 200 and 300 is installed in the main body 10 so that the air is blown through the main body 10, and the front panel 52 and the top panel 58. Is the same as the first embodiment except that a plurality of discharge ports 14, 16, 114, and 116 are arranged in rows.

Here, the discharge holes 14, 16, 114, and 116 are the first discharge holes 14 and 16 to which the first duct 200 is connected and the second discharge holes 114 to which the second duct 300 is connected. 116, and the first and second discharge ports 14, 16, 114, and 116 are formed in the front panel 52 and the top panel 58, respectively, to form a pair.

In particular, the first and second outlets 14, 16, 114, and 116 are formed in different panels 52 and 58, respectively, and each outlet 14 is formed in different panels 52 and 58. 16, 114, and 116 are formed to form a row with each other.

Thus, one or more air blowing units are installed in the first discharge holes 14 and 16 and the second discharge holes 114 and 116 which form a row.

Thus, as illustrated in FIG. 20, the first and second ducts 200 and 300 may be installed in the same direction (FIG. 20A) or may be installed in different directions (FIG. 20B).

In addition, although not shown, the main body 10 may be provided with a plurality of ducts 200, 300, but only one duct may be connected, and a discharge port may be formed in the base 50.

That is, the indoor unit of the duct type air conditioner according to the second embodiment may be installed in a space having a variable cooling / heating capacity to increase or decrease the capacity of air blown through the ducts 200 and 300.

For example, in the initial installation, the ducts 200 and 300 are connected to only one of the first and second discharge ports 14, 16, 114, and 116 in order to cool / heat a small area. A, when the cooling / heating area is increased, only an duct may be additionally installed in the indoor unit without installing an air conditioner to satisfy the increased cooling / heating capacity.

In addition, even if the additional cooling / heating space is different from the initial installation space, the indoor unit according to the present invention can be changed to the forward or upward direction of the duct connected to the main body 10, it is more than the additional conditions It can be applied easily.

To this end, the main body 10 may be provided with respective blowing units for blowing air to the respective ducts 200 and 300.

In this embodiment, however, two fans 224 and 234 are installed to blow air in both ducts 200 and 300, and the motor 270 drives the fans 224 and 234. Only one blower unit 220 is installed.

Thus, the motor 270 is provided with a shaft 271 so as to penetrate the center of the fan 224 as in the first embodiment, the shaft 271 penetrates through the fan housing 228 in which the motor 270 is installed. It is also connected to a fan 234 inside the adjacent fan housing 238.

And in the present embodiment, although each fan 224, 234 is connected by one motor 270, each fan housing 228, 238 is in the direction in which the duct 200, 300 is connected Accordingly, the positions of the discharge ports of the fan housings 228 and 238 may be changed.

Hereinafter, the coupling relationship between the shaft 271 and the fans 224 and 234 and other structures are the same as in the first embodiment, and thus a detailed description thereof will be omitted.

Since the indoor unit of the air conditioner according to the present invention configured as described above has a plurality of discharge ports formed in the main body, and a duct is connected to any one of the plurality of discharge ports, the indoor unit is installed according to the installation place and the space where the duct is connected. There is an effect of changing the position of the duct connected to the main body.

In addition, since the blower unit installed in the indoor unit of the air conditioner according to the present invention uses a BLDC motor, it is more reliable than the general motor and has an effect of effectively transmitting the driving force.

In addition, the BLDC motor installed in the indoor unit of the air conditioner according to the present invention because the stator is fixed to the fan housing through the supporter, its fixing structure is simple and suppresses the occurrence of vibration generated during operation.

In addition, since the BLDC motor of the indoor unit of the air conditioner according to the present invention is fixed to the fan housing through the three-shaped supporter, there is an effect that air flows from both sides of the fan housing to the outside.

In addition, the indoor unit of the air conditioner according to the present invention, the first and second discharge ports are formed in the front panel and the top panel, respectively, so that a plurality of ducts can be connected, and in any one of the first and second discharge ports according to the installation environment of the duct By installing the duct, there is an effect of varying the capacity of the indoor unit.

In addition, since the indoor unit of the air conditioner according to the present invention has a plurality of ducts installed in the same direction or in different directions, the degree of freedom of the installation space of the indoor unit is increased.

In addition, the leg of the indoor unit of the air conditioner according to the present invention is easy to install the leg on the base because the leg is installed in the lower part of the base.

In addition, since the indoor unit of the air conditioner according to the present invention has a space formed inside the leg, the indoor unit can be easily moved through the forklift.

In addition, the indoor unit of the air conditioner according to the present invention does not require a separate process of assembling the cover after the installation of the front panel or the top panel when the indoor unit is assembled because the cover shielding the discharge port is made integrally with the blowing unit frame of the blowing unit. It works.

In addition, the indoor unit of the air conditioner according to the present invention has the effect of shielding the unnecessary discharge port only by the step of assembling the blower unit frame when the position of the discharge hole to which the duct is connected is assembled.

In addition, the indoor unit of the air conditioner according to the present invention is not only smoothly formed on the surface of the front panel or the top panel because the cover is made integrally to the blower unit frame of the blower unit, thereby causing a jam or protrusion when the indoor unit is moved. The effect is that no damage occurs.

Claims (4)

A main body having a plurality of discharge ports formed on different surfaces; A blowing unit connected to any one of the plurality of discharge ports; Comprising a cover for shielding at least one discharge port of the plurality of discharge ports, The cover is an indoor unit of the air conditioner, characterized in that configured integrally with the blowing unit. The method according to claim 1, The indoor unit is configured to include a heat exchanger, The plurality of discharge ports are indoor unit of the air conditioner, characterized in that located on the surface facing the heat exchanger and the surface perpendicular to the surface on which the heat exchanger is installed. The method according to claim 1, The blower unit comprises a blower unit frame fixed to the main body, the cover is an indoor unit of the air conditioner, characterized in that installed integrally to the blower unit frame. The method according to claim 3, The cover is provided with two, each of the cover is an indoor unit of the air conditioner, characterized in that each installed on the opposite surface of the air blowing unit frame.

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