KR20070078253A - Indoor unit of air conditioner - Google Patents

Abstract

An indoor unit of an air conditioner is provided to simplify the structure and reduce manufacturing cost by allowing one barrier to function as an upper discharging path of an upper discharging blower fan as well as a lower discharging path of a lower discharging blower fan. An indoor unit of an air conditioner comprises a body, a barrier(34), an upper discharging blower fan(42), and a lower discharging blower fan(44). The body has an air inlet, an upper air outlet(2) at the upper part, and a lower air outlet(3) at the lower part. The barrier diagonally partitions the inside of the body into an upper blowing path(U) and a lower blowing path(D). The upper discharging blower fan is arranged at the upper blowing path, sucks air through the air inlet, and discharges the air through the upper air outlet. The lower discharging blower fan is arranged at the lower blowing path, sucks the air through the air inlet, and discharges the air through the lower air outlet.

Description

Indoor unit of air conditioner

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

2 is a schematic front view showing the interior of the indoor unit first embodiment of the air conditioner according to the present invention;

3 is a cross-sectional view taken along line A-A shown in FIG. 1 when an indoor unit of an air conditioner according to the present invention is a heating operation;

4 is a cross-sectional view taken along line B-B shown in FIG. 1 when the indoor unit of the air conditioner according to the present invention is one embodiment of the cooling operation;

5 is a flow chart illustrating an embodiment of a control method of an indoor unit of an air conditioner according to the present invention;

6 is a perspective view showing an indoor unit of the air conditioner according to the prior art,

7 is a schematic plan view showing the interior of the indoor unit of the air conditioner according to the prior art,

Figure 8 is a schematic front view showing the interior of the indoor unit of the air conditioner according to the prior art.

<Explanation of symbols on main parts of the drawings>

1: front air inlet 2: upper air outlet

3: lower air outlet 10: main body

12: chassis 30: front frame

31: filter 32: front panel

34: Barrier 35: One slope

36: other inclined portion 37: center vertical portion

42: blower fan for upper discharge 44: blower fan for lower discharge

46: upper discharge motor 48: lower discharge motor

D: Lower blowing passage U: Upper blowing passage

The present invention relates to an indoor unit of an air conditioner and a control method thereof, and in particular, an upper air discharge port is formed at an upper portion thereof, a lower air discharge hole is formed at a lower portion thereof, and an indoor unit of an air conditioner having a barrier disposed substantially in a diagonal direction therein. And a control method thereof.

In general, an air conditioner uses a refrigeration cycle of refrigerant consisting of a compressor, a four-way valve, an outdoor heat exchanger (condenser or evaporator), an expansion device, and an indoor heat exchanger (evaporator or condenser) to create a more comfortable indoor environment for the user. By cooling or heating, it is largely divided into a separate type and an integrated type.

The separation type and the integrated type are functionally the same, but the separation type has a cooling / heating device, an indoor fan and an indoor fan motor installed in the indoor unit, and a heat radiation / cooling device, a compression device, an outdoor fan and an outdoor fan motor installed in the outdoor unit. The indoor unit and the outdoor unit separated from each other are connected by a refrigerant pipe, and the integrated type is formed by integrating the function of cooling heat dissipation.

The detachable type is usually installed indoors indoors, hung on the wall or embedded in the ceiling, the integral type is installed by drilling a hole in the wall of the house or hanging the device on the window or placed in the outdoor and indoors and ducts Connected.

6 is a perspective view showing the indoor unit of the air conditioner according to the prior art, Figure 7 is a schematic plan view showing the interior of the indoor unit of the air conditioner according to the prior art, Figure 8 is an indoor unit of the air conditioner according to the prior art The inside of is a schematic front view shown.

One embodiment of the indoor unit of the separate type air conditioner according to the present invention includes a chassis 104 having air outlets 101, 102, 103 formed on left, right, and bottom surfaces thereof, as shown in FIGS. 6 and 7. And a heat exchanger 120 mounted to the chassis 104 and a heat exchanger 120 arranged in front of the blowers 110 and 111 to heat-exchange the air blown by the blower 110 with the refrigerant. And a front panel 130 formed together with the chassis 104 to form a receiving space of the blowers 110 and 111 and the heat exchanger 120 and having an air inlet 128 formed therein so as to suck the air in the room. The suction grill 140 is disposed to be rotated forward on the front surface of the panel 130.

The blowers 110 and 111 are composed of a left blower 110 and a right blower 111.

The left blower 110 is installed on the left blower motor 112 fixed to the front of the chassis 14, and the rotation shaft of the left blower motor 112, as shown in Figure 8, rotates in a counterclockwise direction Left blower fan 116 is made.

The right blower 111 is installed on the right blower motor 114 fixed to the front of the chassis 104, the rotary shaft of the right blower motor 114, as shown in Figure 8, the left blower fan 116 It is made of a right blowing fan 118 rotated in the clockwise direction opposite to the).

In addition, the chassis 104 has a partition wall 119 for partitioning the air flow paths of the air blowers 110 between the sets of the air blowers 110 at the lower end of the chassis 104 at the center of the top of the chassis 104. It is arranged vertically up and down toward the center.

Meanwhile, left vanes 151 are rotatably disposed left and right in the left air outlet 101, and right vanes 152 are rotatably arranged left and right in the right air outlet 102, and the lower air outlets The lower vane 153 is disposed in the 103 so as to be rotatable up and down.

Looking at the operation of the prior art configured as described above are as follows.

When the indoor unit of the air conditioner is cooled, the left blower motor 112 and the right blower motor 114 are driven so that the left blower fan 116 is rotated counterclockwise and the right blower fan 118 is rotated. When rotated clockwise, air in front of the indoor unit passes through the air intake port 128 of the front panel 130 and between the suction grill 140 and is sucked into the interior of the indoor unit, and the heat exchanger 120 Heat exchange with the coolant while passing through) to cool.

The cooled cold air is distributed to the left and right air blowing fan 116 and the right air blowing fan 118 while being distributed to the left and right, and the cold air sucked into the left air blowing fan 116 is blown in the centrifugal direction and the left air discharge port 101 and the lower side. The air is distributed and discharged to the left and the lower side of the indoor unit through the air outlet 103, the cold air sucked into the right blowing fan 118 is blown in the centrifugal direction and the air is discharged through the right air outlet 102 and the lower air outlet 103 Disperse and discharge to the right and the bottom of the indoor unit.

However, the indoor unit of the conventional air conditioner may be unpleasant because the air discharged during the cooling operation, in particular the cold air discharged through the lower air discharge port 103 is directed directly to the user, the left blower fan 116 and the right blower The fan 118 is configured to rotate in opposite directions to each other, there is an advantage that at least one misassembly of the two can occur.

The present invention has been made to solve the above-mentioned problems of the prior art, the air conditioning port is formed as well as the upper air discharge port is air conditioning that can not directly discharge cold air to the user who does not like direct wind through the lower air discharge port The purpose is to provide a indoor unit of the machine.

Another object of the present invention is to provide an indoor unit of an air conditioner that is made of the same structure in which a plurality of blowing fans are rotated in the same direction does not cause a defect due to misassembly.

Still another object of the present invention is to provide a control method of an indoor unit of an air conditioner that provides indirect wind through the upper air outlet by rotating only the upper blower fan for cooling and discharging the cold air through the upper air outlet. .

The indoor unit of the air conditioner according to the present invention for solving the above problems

An air intake port is formed, an upper air discharge port is formed in the upper portion, and a lower air discharge port is formed in the lower portion; A barrier that partitions the inside of the main body into an upper blowing passage and a lower blowing passage in a substantially diagonal direction; An upper discharge blower fan disposed in the upper blower passage to suck air into the air inlet and discharge the air to the upper air outlet; And a lower discharge blower fan disposed in the lower blower passage to suck air into the air inlet and discharge the air to the lower air outlet.

In addition, the main body is characterized in that the upper air discharge port is formed to the upper and lower openings in the upper surface of the main body and the lower air discharge port is formed in the upper and lower openings in the lower surface of the main body.

In addition, the main body is characterized in that the front air inlet is formed in the front portion.

The barrier may include one side inclined portion inclined at an upper end of one side of the left and right sides of the main body, the other side inclined portion inclined at a lower end of the left side and the right side of the main body, and a lower end and the other side of the one inclined portion. It characterized in that it comprises a central vertical portion disposed vertically between the top of the inclined portion.

The air conditioner may further include a lower blowing flow path guide forming a lower blowing flow path together with the barrier, and an upper blowing flow path guide forming an upper blowing flow path together with the barrier.

 In addition, the upper discharge fan and the lower discharge fan is rotated in the same direction, characterized in that the same structure.

The upper discharge fan and the lower discharge fan may be spaced apart from each other with a center portion of the barrier interposed therebetween.

In addition, the rotation center of the upper blower fan is characterized in that it is located higher than the rotation center of the lower blower fan.

The apparatus may further include an upper discharge motor for rotating the upper discharge blower fan and a lower discharge motor for rotating the lower discharge blower fan.

In addition, the upper discharge motor and the lower discharge motor is characterized in that the same structure.

In addition, the indoor unit control method of the air conditioner according to the present invention is characterized in that, if the indoor unit of the air conditioner is the cooling operation, only the upper discharge motor of the upper discharge motor and the lower discharge motor.

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

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

1 to 4, the indoor unit of the air conditioner according to the present embodiment has an air inlet 1 formed thereon, an upper air outlet 2 formed at an upper portion thereof, and a lower air outlet 3 formed at a lower portion thereof. It is configured to include a main body 10 is formed.

The main body 10 may be made of a stand type standing on the floor of the room, may be made of a wall-mounted type installed on the wall of the room, may be made of a ceiling type, etc. installed on the ceiling, but is made of a wall-mounted type The description will be limited to that.

In addition, since the air inlet 1 is formed on at least one of the front part, the left side part, and the right side part of the main body 10, the front air inlet 1 is described below.

The main body 10 is formed such that the upper air discharge port 2 is opened to the front and rear in the upper portion of the front portion, or is formed to open up and down in the upper surface portion, and the lower air discharge hole 3 is opened to the front and rear in the lower portion of the front portion The upper air discharge port 2 is formed to be opened up and down in the upper surface portion, and the lower air discharge hole 3 is opened to be opened up and down in the lower surface portion. Explain.

The main body 10 includes a chassis 12, a front frame 30 disposed on the front surface of the chassis 12, and a front panel 32 disposed on the front surface of the front frame 30. .

In the main body 10, the upper air outlet 2 and the lower air outlet 3 may be formed only on the upper and lower surfaces of any one of the chassis 12 and the front panel 30, and both The upper air discharge port 2 and the lower air discharge port 3 may be formed in the following. Hereinafter, as shown in FIG. 1, the upper air discharge port 2 and the lower air discharge port 3 are formed in the chassis 12. Will be described as being formed.

The chassis 12 is mounted on a mounting plate (not shown) mounted on a wall of a room by a fixing means such as a screw or mounted to the mounting plate by a fixing means such as a screw.

The front frame 30 is formed with the front air inlet 1 at the front and rear openings, and a filter 31 for purifying the air sucked into the front air inlet 1.

The front panel 32 is fixed to cover the front surface of the front frame 30 and the air in front of the front panel 32 passes through the front panel 32 so that the front air intake port 1 of the front frame 30 is closed. It is also possible to be configured as a grill to be sucked into), and is composed of a plate-like plate body which is fixedly spaced apart in front of the front frame 30 to have an air suction flow path between the front surface of the front frame 30 It is also possible to open the front center around the lower portion of the plate-shaped plate rotatably connected to the front portion of the front frame 30 by a hinge so as to have an air intake passage between the front surface of the front frame 30 It is also possible to be composed of a sieve, hereinafter described as limited to consist of a plurality of flat plate body rotatably connected to the lower portion by a hinge on the front portion of the front frame 30 All.

Figure 2 is a schematic front view showing an interior of an indoor unit of one embodiment of the air conditioner according to the present invention, Figure 3 is a cross-sectional view of the AA line shown in Figure 1 when one embodiment of the indoor unit of the air conditioner according to the present invention is heating operation 4 is a cross-sectional view taken along line BB of FIG. 1 when an indoor unit of an air conditioner according to the present invention is an air conditioner.

The indoor unit of the air conditioner has a barrier 34 which divides the inside of the main body 10, in particular the chassis 12, into an upper blowing passage U and a lower blowing passage D in a substantially diagonal direction; An upper blower fan 42 disposed in the upper blower passage U to suck air into the air inlet 1 and discharge the air to the upper air outlet 2; The upper discharge motor 44 for rotating the upper discharge blower fan 42 and the lower blower flow path D are disposed to suck air into the air intake port 1 to the lower air discharge port 3. And a lower discharging fan 52 for discharging, and a lower discharging motor 54 for rotating the lower discharging fan 52.

The barrier 34 has one side inclined portion 35 disposed to be inclined downward from the upper end of one side of the left and right sides of the main body 10 toward the other side of the left and right sides, and the other side of the left and right sides of the main body 10. The other vertical inclined portion 36 is disposed to be inclined upward toward one side of the left and right, and the central vertical portion disposed vertically between the lower end of the one inclined portion 35 and the upper end of the other inclined portion 36 ( 37).

The indoor unit of the air conditioner includes an upper blowing flow path guide 38 for forming an upper blowing flow path U together with the barrier 34, and a lower blowing flow path D for forming the lower blowing flow path D together with the barrier 34. It is comprised further including the air flow path guide 39.

The upper air flow passage guide 38 is disposed to be positioned substantially above the other inclined portion 36 to guide the air blown by the upper discharge blower fan 42 to the upper air discharge port 2. As it is, the upper end is installed so as to be located opposite the upper end of the one side inclined portion 35, the lower portion is formed to be rounded so as to be in contact with one side, approximately the center side of the other inclined portion 36.

The lower air flow passage guide 39 is disposed to be substantially below the one side inclined portion 35 to guide the air blown by the lower discharge blower fan 52 to the lower air discharge port 3. As it is, the lower end is installed so as to be located opposite the lower end of the other inclined portion 36, the upper portion is formed so as to be in contact with one side of the one side of the inclined portion 36 substantially center side.

The upper blower fan 42 and the lower blower fan 52 are centrifugal fans, such as a turbofan, that suck air in the front side and blow the air in the circumferential direction, and are rotated in the same direction so as to be installed in common. It is made of the same structure and the like kind, it is arranged to be spaced apart from the barrier 34, in particular, the center portion 37.

The rotation center of the upper discharge blower fan 42 is positioned higher than the rotation center of the lower discharge blower fan 52 by a predetermined height (H).

The upper discharge motor 44 and the lower discharge motor 54 are installed in the chassis 12 so that the rotating shaft protrudes forward.

The upper discharging motor 44 and the lower discharging motor 54 have the same structure in which the rotating shaft is rotated in the same direction and has the same size, type, and the like so as to be installed in common.

 On the other hand, the indoor unit of the air conditioner controls the wind direction of the air passing through the upper air outlet (2), and the upper vane 62 for opening and closing the upper air outlet (2) and the lower air outlet (3) In addition to adjusting the wind direction of the air passing through is configured to further include a lower vane (64) for opening and closing the lower air outlet (3).

The upper vanes 62 are formed to be the same size or a little smaller than the upper air outlet 2 so as to seal the upper air outlet 2, and both sides of the rear end thereof so as to be rotated up and down about the rear end. The rotating shaft is provided to protrude from side to side.

The lower vanes 64 are formed at the same size or a little smaller than the lower air outlets 3 so as to seal the lower air outlets 3 and on both sides of the rear ends thereof so as to be rotated up and down about the rear end. The rotating shaft is provided to protrude from side to side.

The indoor unit of the air conditioner further includes an upper vane motor 66 for vertically rotating the upper vane 62 and a lower vane motor 68 for vertically rotating the lower vane 64.

 On the other hand, the indoor unit of the air conditioner is provided with a heat exchanger 70 for heating or cooling the air sucked through the front air intake port 31 by heat exchange with the refrigerant.

Looking at the operation of the present invention configured as described above are as follows.

5 is a flowchart illustrating an embodiment of a method for controlling an indoor unit of an air conditioner according to the present invention.

First, the indoor unit of the air conditioner checks whether it is a cooling operation or a heating operation when a driving operation command is input through a remote controller or a control panel installed in the indoor unit.

When the indoor unit of the air conditioner is a cooling operation, the upper vane motor 66 is set to the open mode, and the lower vane motor 68 is set to the sealed mode.

In the open mode of the upper vane motor 66, the upper vanes 62 are arranged parallel to or inclined with the air discharge direction of the upper air outlet 2, as shown in FIG. 4, and the lower vane motor ( In the sealed mode of 68, the lower vanes 64 are arranged orthogonally to the air discharge direction of the lower air discharge port 2, as shown in FIG.

Then, only the upper discharge motor 44 is driven among the upper discharge motor 44 and the lower discharge motor 54 (S2).

When the upper discharge motor 44 is driven, the upper discharge blower fan 42 is rotated clockwise as shown in FIG. 2 and sucks air in front of the upper discharge blower fan 42 to blow in the circumferential direction.

At this time, the indoor air is collected in front of the front air intake port 1 of the front frame 30, and moved back and forth through the front air intake port 1 is sucked into the interior of the main body 10.

The air sucked through the front air intake port 1 passes through the filter 31, and foreign substances such as dust are caught by the filter 31 to be purified, and cooled while passing through the heat exchanger 70. It is sucked by the blowing fan 42 for discharge.

The cold air sucked into the upper discharge blower fan 42 is blown in the circumferential direction by the upper discharge blower fan 42.

The cold air blown around the upper discharge fan 42 is guided to the vertical center portion 37, the other inclined portion 36, and the upper air flow passage guide 38 of the barrier 34 to discharge the upper portion. While flowing in the upper direction of the blowing fan 42, the diffusion in the upper side of the one inclined portion 35, passing through the upper air discharge port (2) and guided by the upper vanes 62, the upper part of the room Is discharged toward.

The cold air discharged toward the upper part of the room is spread like a shower while spreading widely to the upper part of the room, and the room is cooled down evenly to a part far from the air conditioner.

 On the other hand, when the indoor unit of the air conditioner is a heating operation, the upper vane motor 66 is in the sealed mode, the lower vane motor 68 is in the open mode, and the upper discharge motor 44 and the lower discharge are provided. Among the motors 54, only the lower discharge motor 54 is driven. (S3) (S4)

In the open mode of the lower vane motor 68, the lower vanes 64 are arranged parallel to or inclined with the air discharge direction of the lower air discharge port 3, as shown in FIG. 3, and the upper vane motor ( In the sealed mode of 66, the upper vanes 62 are disposed perpendicular to the air discharge direction of the upper air discharge port 2, as shown in FIG. 3.

When the lower discharge motor 54 is driven, the lower discharge blower fan 52 is rotated clockwise and sucks air in front of the lower discharge blower fan 52 to blow in the circumferential direction.

At this time, the indoor air is moved back and forth through the front air intake port 1 as in the cooling operation, is sucked into the main body 10, foreign matter such as dust is passed through the filter 31, the filter 31 ) Is purged and then heated while passing through the heat exchanger (70) and sucked into the lower blower fan (52).

The cold air sucked into the lower discharge blower fan 52 is blown in the circumferential direction by the lower discharge blower fan 52.

The cold air blown around the lower blower fan 52 is guided to the vertical center portion 37, one inclined portion 35, and the lower blower flow path guide 39 of the barrier 34 to discharge the lower discharge. While flowing in the downward direction of the blowing fan 52, it is diffused from the lower side of the other inclined portion 36, passes through the lower air discharge port 3, and then guides the lower vanes 66 to the lower part of the room. Is discharged toward.

The warmth discharged toward the lower part of the room is raised while spreading widely to the lower part of the room.

On the other hand, the present invention is not limited to the above embodiment, it is also possible for the upper discharge blower fan 42 and the lower discharge blower fan 52 to rotate together during the heating operation, within the scope of the present invention Of course, the various implementations are possible.

The indoor unit of the air conditioner of the present invention configured as described above has an upper air discharge port formed at an upper portion of the main body, and a lower air discharge port formed at a lower portion thereof, and has an upper air flow passage and a lower air flow passage in a substantially diagonal direction inside the main body. A barrier for partitioning is installed, an upper blower fan is disposed in the upper blower passage, and a lower blower fan is disposed in the lower blower passage, and heat-exchanged air is supplied to a user who does not like direct wind through the lower air outlet. There is an advantage that can not be directly discharged, and the air conditioning the room by indirect wind.

 In addition, the indoor unit of the air conditioner of the present invention, one side inclined portion is arranged inclined at the upper end of one side of the left, right side of the main body, the other inclined portion disposed inclined at the lower end of the other side of the left, right of the main body, and one side It consists of a central vertical portion disposed vertically between the lower end of the inclined portion and the upper end of the other inclined portion, so that one barrier can serve as the upper discharge flow path of the upper discharge blower fan and the lower discharge flow path of the lower discharge blower fan. There is a simple and inexpensive advantage.

In addition, the indoor unit of the air conditioner of the present invention has the same structure in which the upper discharge fan and the lower discharge fan are rotated in the same direction, and the outer upper discharge motor and the lower discharge motor have the same structure. There is an advantage that a defect by assembly does not occur.

In addition, the indoor unit of the air conditioner of the present invention is located in the rotation center of the upper discharge blower fan is higher than the rotation center of the lower discharge blower fan, so that the left and right width of the indoor unit of the air conditioner than the rotation center is located at the same height There is an advantage that it can be minimized and compact.

In addition, the indoor unit control method of the air conditioner according to the present invention by rotating only the upper blower fan during the cooling operation to discharge the cold air through the upper air outlet, to direct the upper part of the room without discomfort to the user who does not like direct wind The discharged cold air is supplied to a position far from the indoor unit, and the cold air falls like a shower, thereby cooling the entire room evenly.

Claims (11)

An air intake port is formed, an upper air discharge port is formed in the upper portion, and a lower air discharge port is formed in the lower portion; A barrier that partitions the inside of the main body into an upper blowing passage and a lower blowing passage in a substantially diagonal direction; An upper discharge blower fan disposed in the upper blower passage to suck air into the air inlet and discharge the air to the upper air outlet; And a lower blower fan disposed in the lower blower passage to suck air into the air inlet and discharge the air to the lower air outlet. The method of claim 1, The main body is an indoor unit of the air conditioner, characterized in that the upper air discharge port is formed to the upper and lower openings in the upper surface of the main body and the lower air discharge port is formed in the upper and lower openings in the lower surface of the main body. The method of claim 1, The main body of the indoor unit of the air conditioner, characterized in that the front air inlet is formed in the front portion. The method of claim 1, The barrier includes one side inclined portion inclined at an upper end of one side of the left and right sides of the main body, the other side inclined portion inclined at a lower end of the other side of the left and right sides of the main body, and a lower end and the other inclined portion of the one inclined portion Indoor unit of the air conditioner, characterized in that it comprises a central vertical portion disposed vertically between the top. The method of claim 1, The air conditioner includes a lower air flow passage guide for forming a lower air flow passage together with the barrier; The indoor unit of the air conditioner, characterized in that it further comprises an upper air flow passage guide for forming an upper air flow passage with the barrier. The method of claim 1, The upper discharge blower fan and the lower discharge blower fan is an indoor unit of the air conditioner, characterized in that made of the same structure is rotated in the same direction. The method of claim 1, And the upper discharge blower fan and the lower discharge blower fan are disposed to be spaced apart from each other with the center portion of the barrier interposed therebetween. The method of claim 1, An indoor unit of the air conditioner, wherein the rotation center of the upper discharge blower fan is positioned higher than the rotation center of the lower discharge blower fan. The method according to any one of claims 1 to 8, An upper discharging motor for rotating the upper discharging fan; An indoor unit of an air conditioner, further comprising a lower discharge motor for rotating the lower discharge blower fan. The method of claim 9, The indoor unit of the air conditioner, wherein the upper discharge motor and the lower discharge motor have the same structure. In the indoor unit control method of the air conditioner for controlling the indoor unit of the air conditioner of claim 9, And controlling the indoor unit of the air conditioner to drive only an upper discharge motor among the upper discharge motor and the lower discharge motor when the indoor unit of the air conditioner is a cooling operation.

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