KR20040056041A - Indoor unit of air conditioner - Google Patents

Abstract

PURPOSE: An indoor unit of an air conditioner is provided to utilize a room space fully by the small size of the indoor unit and randomly control the arrangement angle and air discharge angle of the indoor unit as desired. CONSTITUTION: An indoor unit of an air conditioner includes a supporting die(2), a cabinet(10), a heat exchanger, a front panel(30), a motor, and a blower fan. The supporting die is fixed to a wall of an indoor unit and protruded toward the inside of a room. The cabinet is rotatably supported to the supporting die apart from the wall and formed with suction holes(12). The heat exchanger is mounted in the cabinet. The front panel is coupled with a front part of the cabinet and formed with a discharge hole(32). The motor is mounted behind the discharge holes in the cabinet. The blower fan is connected to a shaft of the motor. The supporting die has fitting parts(3) at both ends to be inserted into fitting hole parts(11) at both sides of the cabinet. Screw parts(3a,11a) are respectively formed to the fitting parts and the fitting hole parts for the random angle control of a user.

Description

Indoor unit of air conditioner

The present invention relates to an indoor unit of an air conditioner, and in particular, an indoor unit of an air conditioner capable of arbitrarily adjusting an arrangement angle and an air discharge angle of an indoor unit and preventing air discharged through the discharge port from being directly sucked into the inlet port. It is about.

In general, air conditioners are installed for the purpose of heating or cooling the room with a heater, air conditioner, purifier, etc. or to purify the air to create a more comfortable indoor environment for humans. Among them, the heater and the air conditioner are installed on the wall according to the installation place. It is divided into a wall-mounted air conditioner, a window-type air conditioner installed on a window, a ceiling-type air conditioner installed on a ceiling, and an upright air conditioner used on an indoor floor.

Here, the wall-mounted air conditioner and the ceiling-type air conditioner is a separate air conditioner having a built-in evaporator in the indoor unit, a compressor, a condenser and an expansion mechanism in the outdoor unit, and the window type air conditioner is the evaporator in the cabinet installed in the window. As an integrated air conditioner in which a compressor, a condenser, and an expansion mechanism are incorporated, in any case, the limited indoor space is cooled or heated by sucking and exchanging heat inside the air and then discharging the limited indoor space again.

However, the indoor unit of the air conditioner according to the prior art is formed in the front of the air conditioner and the suction portion for the air intake and the discharge portion for the heat-exchanged air is formed together, the air flow path inside the cabinet is complicated, The size of the air conditioner is large, occupies a large amount of space in the room, and some of the air discharged through the discharge unit is not circulated in the room, but is directly sucked into the suction unit, thereby lowering cooling efficiency.

In addition, the fan is rotated to circulate the indoor air into the cabinet and the louver for adjusting the discharge direction of the air discharged to the discharge portion is installed separately, so that not only the structure is complicated, but also the manufacturing cost and labor maneuver increases. There is this.

The present invention has been made in order to solve the problems of the prior art, it is small in size can make full use of the interior space, the user can arbitrarily adjust the arrangement angle and the air discharge angle of the indoor unit to facilitate the use of air The purpose is to provide an indoor unit of the harmonic.

In addition, another object of the present invention is to reduce the production cost of one blower fan can perform the function of the blower and louver.

1 is a perspective view of an embodiment of an indoor unit of an air conditioner according to the present invention;

2 is an internal side view of an air conditioner indoor unit according to an embodiment of the present invention;

3 is a front view when the blowing fan is stopped according to the present invention;

4 is a side view at the time of stopping the blowing fan according to the present invention;

5 is a front view of the blowing fan when rotating in accordance with the present invention;

Figure 6 is a side view at the time of rotation of the blowing fan according to the present invention.

<Explanation of symbols on main parts of the drawings>

2: support 3: fitting

3a: thread part 3b: through hole

10: cabinet 12: inlet

18; Drain 20 Heat Exchanger

28: plasma filter 30: front panel

32: discharge port 40: motor mount

42: motor 43: shaft

44: gear 50: blowing fan

51: through hole 52: fitting hole

54: Hub 58: Insertion Groove

60: wing 61: pinch axis

70: Bevel Gear

The indoor unit of the air conditioner according to the present invention for solving the above problems and the support is fixed to the wall and protruded toward the indoor side; A cabinet rotatably supported by the support, spaced apart from a wall, and having a suction port; A heat exchanger disposed in the cabinet; A front panel coupled to the front surface of the cabinet and having a discharge port formed thereon; A motor mounted to the rear of the discharge port; And a blowing fan connected to the shaft of the motor.

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

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

As shown in FIGS. 1 and 2, the indoor unit of the air conditioner according to the present embodiment is fixed to the wall A and the support 2 protrudes toward the indoor side, and the front end of the support 2. A cabinet (10) rotatably supported on the rear surface (10a), the rear surface (10a) of which is spaced apart from the wall, and the inlet (12) is formed on the circumferential surface or the side surface; A plasma filter 28 installed inside the cabinet 10 to be disposed between the heat exchanger 20 and the suction port 12 to remove foreign substances in the air sucked through the suction port 12, and the cabinet 10. A front panel 30 coupled to a front surface of the front panel 30 having a discharge port 32 formed at a center thereof, a motor mount 40 fixed at an upper end and a lower end at a rear side of the front panel 30, and a rear of the discharge port 32. A motor 42 fixed to the motor mount 40 and a shaft 43 of the motor 42 connected to It is configured to include an air blowing fan (50).

The support 2 has the fitting portions 3 protruding from opposite ends thereof, and the fitting portions 3 are inserted into the fitting holes 11 formed at both sides of the cabinet 10 so that both sides of the cabinet 10 are inserted. And the screw parts 3a and 11a are formed on the outer circumferential surface of the fitting portion 3 and the fitting hole 11 so that the user can arbitrarily adjust the placement angle of the indoor unit 1. When the indoor unit 1 is rotated by applying more than a force, the discharge angle of the discharge port 32 of the indoor unit is changed, so that the discharge wind direction can be arbitrarily adjusted.

Here, the screw portions (3a, 11a) is rotated by manually rotating the indoor unit (1), but a circular screw thread is not formed that is not rotated randomly.

On the other hand, the fitting portion 3 is formed with a through hole (3b) through which the refrigerant pipe 21 for connecting the heat exchanger 20 and the heat exchanger (not shown) of the outdoor unit (not shown).

In addition, the cabinet 10 has a first fixing end 13 having a fastening hole formed therein so that the upper end 20a of the heat exchanger 20 can be fastened with a screw 21 to protrude from an upper inner surface thereof. Two fitting protrusions 14a and 14b into which the lower end 20b of the 20 is fitted protrude in the front and rear directions of the indoor unit to support the lower end 20b of the heat exchanger 20.

In addition, the cabinet 10 has second and third fixing ends 15a and 16b having fastening holes formed therein so that the upper end 28a and the lower end 28b of the plasma filter 28 may be fastened to the screws 29a and 29b. Protruding at the height interval of the plasma filter 28 so that the plasma filter 28 can be installed in the longitudinal direction behind the heat exchanger (20).

On the other hand, the cabinet 10 is integrally formed with a drain portion 18 to receive condensed water generated during the heat exchange in the heat exchanger 20 on the lower inner surface.

The drain portion 18 is formed to have a rounded upper surface so that the condensate can be collected even when the indoor unit 1 is rotated at an inclined angle and is formed to extend to the front portion immediately below the heat exchanger 20.

Meanwhile, the motor mount 40 has fastening holes formed at upper and lower ends, respectively, and screws 41a and 41b at fourth and fifth fixing ends 30a and 30b formed at the upper and lower ends of the rear side of the front panel 30, respectively. And a ventilation hole (not shown) through which air passes through each of the upper and lower sides of the fastening hole into which the motor is inserted.

Here, the blower fan 50 has a wing 60 is flat when the indoor unit 1 is driven off, and functions as a louver, and the wing 60 is inclined at a predetermined angle when the indoor unit 1 is driven on. It is arranged to function as a blower.

Reference numeral 38 denotes a grill that is connected to the front surface of the front panel 30 by a screw 38a so as to cross the discharge port 32 to protect the inside of the discharge port 32.

Figure 3 is a front view when the blowing fan stop according to the invention, Figure 4 is a side view when the blowing fan stop according to the invention, Figure 5 is a front view when the blowing fan rotation according to the invention, Figure 6 is the present invention Side view at the time of rotation of the blowing fan according to the present invention.

The motor is a bidirectional motor capable of forward and reverse rotation, and the shaft 43 of the motor is formed with a gear 44 on an outer circumferential surface thereof, as shown in FIGS. 3 to 6, and the blower fan 50 is located at the center thereof. A through hole 51 through which the shaft 43 is spaced apart from each other, and a hub 54 in which a plurality of fitting holes 52 are formed in a radial direction, and the fitting hole disposed on an outer circumferential side of the hub 54. The fitting shaft 61 is disposed between the plurality of wings 60 protruding from the fitting shaft 61 penetrating through the 52, and the inner circumferential surface of the hub 64 and the gear 44 of the shaft 43. It is composed of a plurality of hemispherical bevel gear 70 is coupled to the gear 44 of the shaft 43.

The hub 54 is formed in the outer circumferential surface with insertion grooves 58 in which the inner portion 62 of the wing 60 is rotatably inserted in a circumferential direction.

Here, the bevel gear 70 is in close contact with the inner portion 62 of the blade 60 to the insertion groove 58 of the hub 54, and also converts the rotational force transmitted to the shaft 43 in a right angle direction When the shaft 43 is rotated, the arrangement angle of the blade 60 is inclined.

Referring to the operation of the present invention configured as described above are as follows.

First, when the motor 42 is driven, the plurality of bevel gears 70 meshed with the gears 44 of the shaft 43 are disposed between the inner circumferential surface of the hub 54 and the gears 44 of the shaft 43. The plurality of blades 60 are rotated to be inclined at a predetermined angle while being rotated, and the blades 60 are together with the hub 54 in a state where the inner portion 62 is locked to the insertion groove 58 of the hub 54. It is rotated forward to generate a blowing force for sucking the indoor air into the cabinet (10).

The air in the room is sucked through the inlet 12 of the cabinet 10, which is the rear part of the indoor unit 1, is purified while passing through the plasma filter 28, and is cooled or warmed while passing through the heat exchanger 20. After changing to the through the discharge port 32 of the front panel 30, which is the front of the indoor unit 1 is discharged back to the room to circulate the room.

On the other hand, when the cooling or heating of the indoor unit 1 is terminated, the motor 42 is driven back after the predetermined time driving is stopped to rotate the shaft 53 in the opposite direction to the rotation of the blade (60). The bevel gear 70 meshed with the gears of the shaft 53 rotates the blade 60 held by the insertion groove 58 in the opposite direction and flattenes the flat blade 60. It acts as a louver to protect the inside of 1).

On the other hand, when the arrangement angle and the discharge angle of the indoor unit 1 is to be changed, when the indoor unit 1 is lifted up or pulled down by a predetermined force or more, the screw portion of the fitting hole 11 of the cabinet 10 ( 11a) and the screw portion 3a of the support 2 insertion portion 3 are rotated by a predetermined angle while the locking state is released.

Here, when the indoor unit 1 is disposed to be inclined downward, the drain portion 18 is formed to be rounded to the lower front of the heat exchanger 30, so that condensed water falling from the heat exchanger 20 may be received.

The indoor unit of the air conditioner according to the present invention configured as described above has an advantage in that the cabinet is rotatably supported by a support fixed to a wall so that the arrangement angle and the air discharge angle of the indoor unit can be arbitrarily adjusted.

In addition, the inlet is formed in the cabinet and the outlet is formed in the front panel has the advantage that the air-heating efficiency is improved by preventing the air heat-exchanged in the heat exchanger to flow directly back to the inlet without circulating the room.

In addition, there is an advantage that the plasma filter is built in the cabinet to remove the foreign matter in the air sucked through the inlet.

In addition, the fitting portions protrude from opposite ends of the support, the fitting holes are formed on both sides of the cabinet so that the fitting portions are rotatably inserted, and a circular thread is formed on the outer circumferential surface of the fitting portion and the fitting holes, so that the user can use the placement angle of the indoor unit. There is an advantage that can be adjusted arbitrarily.

In addition, a round-shaped drain portion capable of receiving condensed water generated during the heat exchange in the heat exchanger on the lower inner side of the cabinet is formed to the lower front side of the heat exchanger to collect condensed water even when the indoor unit is inclined. There is an advantage.

In addition, a gear is formed on the shaft outer circumferential surface of the motor, and the blower fan has a through hole through which the shaft is spaced apart from the center, and a plurality of fitting holes are formed in the radial direction, and the fitting hole is disposed on the outer circumferential side of the hub. Composed of a plurality of blades protruding through the fitting shaft and a plurality of hemispherical bevel gears coupled to the fitting shaft to the gear of the shaft so that the blower fan is placed flat when the indoor unit is driven off to function as a louver. When the indoor unit is driven on, the vane may be disposed to be inclined at a predetermined angle, and thus may function as a blower.

Claims (7)

A support fixed to the wall and protruding toward the interior; A cabinet rotatably supported by the support, spaced apart from a wall, and having a suction port; A heat exchanger disposed in the cabinet; A front panel coupled to the front surface of the cabinet and having a discharge port formed thereon; A motor mounted to the rear of the discharge port; Indoor unit of the air conditioner, characterized in that it comprises a blower fan connected to the shaft of the motor. The method of claim 1, The indoor unit of the air conditioner, the indoor unit of the air conditioner further comprises a plasma filter which is installed inside the cabinet to remove the foreign matter in the air sucked through the suction port. The method of claim 1, The support is an indoor unit of the air conditioner, characterized in that the fitting portion protrudes opposite to the opposite sides, the cabinet is formed with a fitting hole formed in the fitting portion rotatably inserted on both sides. The method of claim 3, wherein The outer circumferential surface of the fitting portion and the fitting hole portion indoor unit of the air conditioner, characterized in that a circular screw thread is formed so that the user can arbitrarily adjust the placement angle of the indoor unit. The method of claim 1, The cabinet is an indoor unit of the air conditioner, characterized in that the lower drain portion of the round shape that can receive the condensate generated during the heat exchange in the heat exchanger to the lower front side of the heat exchanger. The method of claim 1, The shaft of the motor is formed on the outer peripheral surface, The blower fan includes a hub having a through hole through which the shaft is spaced apart from the center, and a plurality of fitting holes formed in a radial direction, and a plurality of fitting shafts protruding from the outer peripheral side of the hub and penetrating the fitting hole. Indoor unit of an air conditioner, comprising: a plurality of wings and a plurality of hemispherical bevel gears coupled to the fitting shaft and engaged with gears of the shaft. The method of claim 6, The hub is an indoor unit of the air conditioner, characterized in that formed in the circumferential direction a plurality of insertion grooves rotatably inserted into the inner portion of the wing.