KR20060122099A - Air conditioner and control method of the same - Google Patents

Abstract

An air conditioner and a control method thereof are provided to form air holes for serving as both inlets/outlets and mount blower units to be driven together for both upper and lower blowing mode, thereby minimizing an air path resistance and improving a blowing capacity. An air conditioner includes a main body(10) formed with air holes(2,4) for inhaling or discharging air at upper and lower parts and mounted with a plurality of blower units. A heat exchanger(90) is mounted between the blower units. A controller drives all the blower units in upper blowing mode in cooling operation, and in lower blowing mode in heating operation. The blower units include blowing fans(74,84) and bidirectional motors to drive the blower fans forward or backward.

Description

Air conditioner and control method {Air conditioner and Control method of the same}

1 is a perspective view of the air conditioner in one embodiment of the air conditioner according to the present invention;

2 is a perspective view of the heating operation of the air conditioner according to an embodiment of the present invention;

3 is an exploded perspective view of an embodiment of an air conditioner according to the present invention;

4 is a cross-sectional view during the cooling operation of an embodiment of an air conditioner according to the present invention;

5 is a cross-sectional view during the heating operation of the air conditioner according to an embodiment of the present invention;

6 is a control block diagram of an embodiment of an air conditioner according to the present invention;

7 is a flow chart of an embodiment of a method for controlling an air conditioner according to the present invention;

8 is an exploded perspective view of an example of an air conditioner according to the prior art;

9 is a cross-sectional view of an example of an air conditioner according to the prior art.

<Explanation of symbols on main parts of the drawings>

2: upper side combined air inlet 4: lower side combined air inlet

12: main chassis 14: upper air guide

16: lower air guide 19: condensate

20: front panel assembly 22: front case

24: front panel 30: upper suction unit

36: upper wind direction adjusting member 38: upper wind direction adjusting motor

40: lower suction discharge unit 46: lower wind direction adjusting member

48: lower wind direction regulating motor 52: upper filter

54: upper filter holder 56: upper filter motor

62: lower filter 64: lower filter holder

66: lower filter motor 72: upper blowing unit

74: upper blowing fan 76: upper bidirectional drive motor

82: lower blowing unit 84: lower blowing fan

86: lower bidirectional drive motor 90: heat exchanger

94: input unit 97: control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and a control method thereof, and in particular, a plurality of blower units are driven to blow cold air upward in a cooling operation, and a plurality of blower units are driven to blow warmth downward in a heating operation. 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 and outdoor units separated from each other are connected by a refrigerant pipe, and the integrated type integrates the function of cooling heat dissipation to drill holes in the walls of the houses or directly install the devices by hanging the windows.

8 is an exploded perspective view of an example of an air conditioner according to the prior art, and FIG. 9 is a cross-sectional view of an example of an air conditioner according to the prior art.

Conventional air conditioners, as shown in Figures 8 and 9, is coupled to the chassis 102, the front of the chassis 102, the air inlet 104 and the suction grill 106 is formed, the front lower or bottom A front grill (110) having an air outlet (108) formed therein, a suction grill (112) rotatably connected to the front surface of the front grill (110), a motor (114) mounted to the chassis (102), and And a heat exchanger 118 disposed between the blower fan 116 connected to the motor 114 and the blower fan 116, the air inlet 104, and the suction grill 106.

The front grill 110 has a front air inlet 104 is formed on the front surface, the top suction grill 106 is integrally formed on the upper surface.

The front grill 110 is disposed with a pre-filter 105 for filtering foreign matter in the air sucked into the front air inlet 104.

The intake grill 112 protects the front air intake 104 and the pre-filter 105, and an upper portion thereof is rotatably connected to an upper portion of the front grill 110.

A louver for forming a condensate receiver 119 for receiving condensate dropped from the indoor heat exchanger 118 and changing the left and right wind directions of the air discharged to the air outlet 108 at an inner lower portion of the front grill 110. The discharge grill 124 including the vanes 122 for changing the upper and lower wind directions 120 is mounted.

In the conventional air conditioner configured as described above, when the blower fan 116 is rotated by the driving of the motor 114, the indoor air in front of the suction grille 112 receives the suction grille 112 and the front air suction port. The foreign matter is filtered by the filter 105 while passing through the 104, and is sucked into the space between the front grill 110 and the chassis 102.

In addition, indoor air above the front grille 110 is sucked into the space between the front grille 110 and the chassis 102 through the upper suction grille 106.

The indoor air sucked as described above is cooled or heated by the refrigerant passing through the indoor heat exchanger 118 while passing through the indoor heat exchanger 118, and after passing through the blower fan 116, the louver 120. ) And the vanes 122 are discharged into the room through the air outlet 108.

However, the air conditioner according to the prior art is the air in the room is sucked through the front and upper surfaces and cooled / heated in the heat exchanger 118 and then discharged to the room through the lower surface, if the installation height is low, the cooling operation When the time when the cold air is evenly spread throughout the room, the installation height is high, there is a problem that the warmth is discharged to the user's face during heating operation to increase the discomfort, the motor 114 and the blowing fan 116 is Since only one is installed, there is a problem that the time for cooling / heating the room is delayed.

On the other hand, Patent Publication No. 10-2004-0015872 (published February 21, 2004) is provided with a plurality of motor 114 and the blowing fan 116, the indoor air is sucked to the front side and discharged through both sides and the bottom surface An air conditioner is disclosed which eliminates discomfort caused by direct discharge of warmth and evenly spreads cold air.

However, since the air conditioner disclosed in the above-mentioned patent publication discloses that indoor air is sucked to the front side and bent to the left, right, or bottom side, the flow path resistance is large, which makes it difficult to rapidly cool / heat the air and discharge the cold air to the bottom or side of the air conditioner. Therefore, there is a problem that takes a considerable time to reach a far distance in the room.

The present invention has been made to solve the above problems of the prior art, the air conditioner that can be reached quickly to a far distance of the room, the air conditioner capable of cooling / heating the room as quickly as possible and its control method The purpose is to provide.

Air conditioner according to the present invention for solving the above problems is a combined air inlet and outlet air is sucked or discharged respectively the main body formed in the upper and lower; A plurality of blowing units installed in the main body; A heat exchanger disposed between the plurality of blower units; And a control unit for driving all of the plurality of blower units to the upper blowing mode to discharge cold air to the upper side during the cooling operation, and for driving all of the plurality of blower units to the lower blowing mode to discharge the warmth downward during the heating operation. It is characterized by.

Each of the plurality of blower units includes a blower fan; Characterized in that composed of a bidirectional drive motor for rotating the blowing fan forward, reverse.

The plurality of blowing units may be configured to include an upper blowing unit installed above the main chassis, and a lower blowing unit installed below the main chassis.

A control method of an air conditioner according to the present invention includes an input step of inputting a cooling / heating operation of an air conditioner; If the operation input in the input step is a cooling operation, all of the plurality of blowing fans are rotated in one of a clockwise direction and a counterclockwise direction, and if the operation input in the input step is a heating operation, all of the plurality of blowing fans are Rotate in the opposite direction as in the cooling operation.

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

1 is a perspective view during the cooling operation of one embodiment of the air conditioner according to the present invention, Figure 2 is a perspective view during the heating operation of an embodiment of the air conditioner according to the present invention.

As shown in FIG. 1, the air conditioner according to the present embodiment is discharged through the upper part after the air A is sucked through the lower part and heat exchanged in the inside during cooling operation, as shown in FIG. 2. The time air B is sucked through the upper part and heat exchanged, and then discharged through the lower part.

The air conditioner (1) has an upper side combined air inlet (2) through which the cooled air (A ') is discharged during the cooling operation in the upper part and the indoor air (B) is sucked during the heating operation is formed, The lower side combined air inlet 4 through which heated air B 'is discharged during operation and air A in the room is sucked during cooling operation is formed.

Figure 3 is an exploded perspective view of one embodiment of the air conditioner according to the present invention, Figure 4 is a cross-sectional view of the air conditioner according to one embodiment of the air conditioner according to the present invention, Figure 5 is a heating of one embodiment of the air conditioner according to the present invention Sectional view during operation.

As shown in FIGS. 3 to 5, the air conditioner includes a main body 10 having a plurality of the combined air inlets and outlets 2 and 4 through which air is sucked or discharged, and a plurality of blowers installed in the main body 10. Units 72 and 82; A heat exchanger (90) disposed between the plurality of blower units (72, 82); All of the plurality of blower units 72 and 82 are driven in the upper blowing mode to discharge cold air A 'to the upper part during cooling operation, and the plurality of blowers to discharge the warmth B' to the lower part during heating operation. And a control unit 97 for driving all of the units 72 and 82 in the lower blowing mode.

The main body 10 is formed with one blow passage (P) up and down inside.

The main body 10 includes a main chassis 12; A front panel assembly 20 covering the front surface of the main chassis 12; An upper suction discharging unit 30 installed above the main chassis 12 to suck or discharge air; It is installed in the lower portion of the main chassis 12 is configured to include a lower suction discharge unit 40 for discharging or suctioning air.

The main chassis 12 is mounted on a mounting plate (not shown) mounted on the wall of the room.

The main chassis 12 is formed with air guides 14 and 16 forming a blow passage P of air passing between the main chassis 12 and the front panel assembly 20.

The air guides 14 and 16 include an upper air guide 14 formed to protrude above the main chassis 12 and a lower air guide 16 protruded below the main chassis 12. It is configured by.

The upper air guide 14 is rounded to form a scroll housing of the upper blowing fan 74, which will be described later.

The lower air guide 16 is rounded to form a scroll housing of the lower blower fan 84, which will be described later.

On the other hand, the main chassis 12 has a condensate receiving portion 19 for receiving the condensed water dropped from the heat exchanger 90 is formed to protrude to the lower rear side of the heat exchanger (18).

The front panel assembly 20 forms a ventilation passage P between the main chassis 12 and the front case 22 having the front blocked, and the front panel 24 at the front of the front case 22. It is configured to include.

The front panel 24 may be attached to or detached from the front surface of the front case 22, or may be integrally formed on the front surface of the front case 22.

The front panel 24 may be configured as a display panel such as LED, LCD, organic EL, etc. that can display a variety of information of the air conditioner, and may be configured as a picture frame, etc. can be put a picture, etc. In addition, the transparent window is provided, it is also possible that the display panel is mounted on the back.

The upper intake and discharge unit 30 is an upper wind direction control for guiding / winding the air passing through the upper stabilizer 32, the upper side combined air inlet (2) and the upper side combined air inlet (2) The member 36 is comprised.

The upper intake and discharge unit 30 is configured to include an upper wind direction control motor 38 for rotating the upper wind direction control member 36.

The upper wind direction control motor 38 shows the upper wind direction control member 36 in FIG. 4 so as to adjust / spread the wind direction of the air A ′ discharged through the upper side combined air inlet 2 during the cooling operation. As shown, rotate between the fully open position (C) and the minimum open position (D).

The upper wind direction control motor 38 shows the upper wind direction control member 36 as shown in FIG. 5 to guide as much room air B as possible to be sucked through the upper side combined air inlet 2 during heating operation. Likewise, it is fixed in the fully open position (C).

The upper wind direction control motor 38 rotates and fixes the upper wind direction adjusting member 36 to the fully closed position E so as to block the upper side combined air inlet 2 when the operation stops.

The lower suction and discharge unit 40 includes a lower stabilizer 42 having a condensate receiver 41 receiving the condensed water dropped from the indoor heat exchanger 18 and having the lower side combined air inlet 4 formed therein. And a lower wind direction control member 46 for guiding / winding the air passing through the lower side combined air inlet 4.

The lower suction discharging unit 40 includes a lower wind direction adjusting motor 48 for rotating the lower wind direction adjusting member 46.

As shown in FIG. 4, the lower wind direction control motor 48 guides the lower air direction control member 46 to guide suction of as much indoor air as possible through the lower side combined air inlet 4 during the cooling operation. Likewise, it is fixed in the fully open position (C).

The lower wind direction control motor 48 shows the lower wind direction control member 46 in FIG. 5 to adjust / spread the wind direction of the air B discharged through the lower side combined air inlet 4 during heating operation. As shown, rotate between the fully open position (C) and the minimum open position (D).

The lower wind direction control motor 48 rotates and fixes the lower wind direction control member 46 to a completely closed position E so as to block the lower side combined air inlet 4 when the operation stops.

As shown in FIGS. 4 and 5, the air conditioner passes through an upper purifying mechanism 50 for purifying air passing through the upper side combined air inlet 2, and a lower side combined air inlet 4. It comprises a lower purifying mechanism 60 for purifying the air to be made.

The upper purifying mechanism 50 includes an upper filter 52 that filters foreign substances in the air B sucked into the upper side combined air inlet and the upper filter 52, and the upper side combined air is detached. And an upper filter holder 54 rotatably positioned at the doorway 2.

The upper purifying mechanism further includes an upper filter motor 56 for rotating the upper filter holder 54.

The upper filter motor 56 is mounted to the upper suction unit 30.

The upper filter motor 56 is the upper filter holder 54 such that the upper filter 52 is parallel to the upper side combined air inlet 2 as shown in FIG. 4 during the cooling operation of the air conditioner. And rotate the upper filter holder 54 such that the upper filter 52 is orthogonal to the upper side combined air inlet 2 as shown in FIG. 5 during the heating operation of the air conditioner.

The lower purifying mechanism 60 includes a lower filter 62 that filters foreign matter in the air A sucked into the lower side combined air inlet 4, and the lower filter 62 is detached and the lower side combined air inlet. And a lower filter holder 64 rotatably positioned at (4).

The lower purifying mechanism further includes a lower filter motor 66 for rotating the lower filter holder 64.

The lower filter motor 66 is mounted to the lower suction discharge unit 40.

The lower filter motor 66 is the lower filter holder 64 such that the lower filter 62 is orthogonal to the lower side combined air inlet 4 as shown in FIG. 4 during the cooling operation of the air conditioner. And rotate the lower filter holder 64 such that the lower filter 62 is parallel to the lower side combined air inlet 4 as shown in FIG. 5 during the heating operation of the air conditioner.

The plurality of blower units 72 and 82 may include an upper blower unit 72 installed above the main chassis 12 and a lower blower unit 82 installed below the main chassis 12. do.

Each of the plurality of blower units (72, 82) and a blower fan (74) (84); It consists of a bidirectional drive motor (76) (86) for rotating the blowing fan (74) (84) forward and reverse.

The upper blowing unit 72 is a left and right of the upper blowing fan 74 and the upper blowing fan 74 to be horizontally disposed on the inner upper portion of the main body 10, the upper blowing fan 74 to rotate It is disposed on one side, and consists of an upper bidirectional drive motor 76 installed in the main chassis 12.

The upper blowing fan 74 is a two-way cross flow fan (blade flow fan) is formed so that the blade to the upper air or the upper air to the lower side.

The upper blowing fan 74 has a left rotating shaft 74a protruding from the left end and a right rotating shaft 74b protruding from the right end.

The upper blower fan 74 has one side of the left rotating shaft 74a and the right rotating shaft 74b connected to the rotating shaft 76a of the upper bidirectional driving motor 76, and the other side of the upper heat exchanger supporter 92 described later. It is inserted into the upper bearing 74c installed in the upper bearing 74c to be rotatably supported.

The upper bidirectional drive motor 76 is mounted to the upper motor mounting portion 12a formed in the main chassis 12, and the rotation shaft 76a is rotated counterclockwise as well as clockwise.

On the other hand, the lower blowing unit 82 of the lower blowing fan 84 and the lower blowing fan 84 so as to rotate horizontally disposed on the inner lower portion of the main body 10, the lower blowing fan 84 It is disposed on one side of the left and right, and consists of a lower bidirectional drive motor 86 installed in the main chassis 12.

The lower blower fan 84, like the upper blower fan 74, is a two-way cross flow fan (blade flow fan) is formed so that the blade to the upper air or the upper air to the lower side.

The lower blower fan 84 has a left rotating shaft 84a protruding from the left end and a right rotating shaft 84b protruding from the right end.

The lower blower fan 84 has one side of the left rotating shaft 84a and the right rotating shaft 84b connected to the rotating shaft 86a of the lower bidirectional driving motor 86, and the other side of the lower heat exchanger supporter 93 described later. It is inserted into the lower bearing (84c) installed in the rotatably supported by the lower bearing (84c).

The lower bidirectional drive motor 86 is mounted to the lower motor mounting part 12b formed in the main chassis 12.

The upper bidirectional driving motor 76 and the lower bidirectional driving motor 86 may be installed up and down on the inside left or right side of the main body 10 in consideration of electric wire connection, and the like, and the motors 76 and 86. It is also possible to be installed in the diagonal direction in consideration of the heat generation of, and will be described below limited to being installed up and down on the inner right side of the main body 10.

The heat exchanger 90 is installed on the blowing flow path P to cool or heat the air passing through the blowing flow path P, and a part thereof is disposed at the front side of the upper blowing fan 62. The remainder may be disposed to be inclined at a predetermined angle between the lower side of the upper blower fan 62 and the upper side of the lower blower fan 72, and all of them are lower than the upper blower fan 62 and the lower blower fan ( It is also possible to be inclined or horizontally disposed between the upper side of the 72, below, a part is disposed in front of the upper blowing fan 62, and the rest is the lower side of the upper blowing fan 62 and the lower blowing fan. It demonstrates only to arrange | position between the upper sides of 72. FIG.

Reference numeral 92 is an upper heat exchanger supporter which is coupled at the front side of the main chassis 12 to which the top of the heat exchanger is fixed.

Reference numeral 93 is a lower heat exchanger supporter which is coupled at the front side of the main chassis 12 to which the lower portion of the heat exchanger is fixed.

6 is a control block diagram of an embodiment of an air conditioner according to the present invention.

The air conditioner according to the present embodiment further includes an input unit 94 for inputting a cooling operation / heating operation of the air conditioner to the control unit 97.

The input unit 94 may be configured as a control panel formed on one side of the air conditioner, or may be configured as a remote controller.

The control unit 97 drives the upper bidirectional driving motor 76 and the lower bidirectional driving motor 86 in the upper blowing mode during the cooling operation, and the upper bidirectional driving motor 76 and the lower bidirectional driving motor during the heating operation. 86) in the lower blowing mode.

On the other hand, the control unit 97 according to the cooling operation / heating operation, the upper wind direction control motor 38, the lower wind direction control motor 48, the upper filter motor 56, the lower filter motor 66 and The compressor 95 and the outdoor fan motor 96 are controlled.

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

7 is a flowchart of one embodiment of a method for controlling an air conditioner according to the present invention.

First, when a cooling operation or a heating operation is input through the input unit 94, the controller 97 checks the input operation.

When the cooling operation is input, the controller 97 drives both the upper bidirectional driving motor 76 and the lower bidirectional driving motor 86 in the upper blowing mode. (S1) (S2)

The upper bidirectional driving motor 76 rotates the upper blowing fan 74 in one of a clockwise direction and a counterclockwise direction (counterclockwise direction shown in FIG. 4) in the upper blowing mode, and operates the lower bidirectional driving. The motor 86 rotates the lower blowing fan 84 in the same direction as the upper blowing fan 74 (counterclockwise direction shown in FIG. 4) in the upper blowing mode.

At this time, a negative pressure due to the rotation of the upper blower fan 74 and the lower blower fan 84 is formed in the lower part of the air conditioner, and the indoor air A quickly gathers to the lower part of the air conditioner, It is sucked into the main body 10 through the lower dual purpose air inlet 4.

The sucked air (A) passes quickly through the lower blower fan 84 by the suction force of the upper blower fan 74 and the suction force of the lower blower fan 84, so that the lower blower fan 84 and the upper blower fan ( It is moved between 74, the heat is cooled by the heat is lost to the refrigerant passing through the heat exchanger 90 while passing through the heat exchanger (90).

The cooled air A 'is rapidly blown upward through the upper blower fan 74 by the blowing force of the lower blower fan 84 and the suction force of the upper blower fan 74, and the upper portion is blown upwards. After passing through the side combined air inlet 2, it is discharged to the front upper side of the air conditioner as shown in Figs.

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

When the heating operation is input, the controller 97 drives both the upper bidirectional driving motor 76 and the lower bidirectional driving motor 86 in the lower blowing mode. (S1) (S2)

The upper bidirectional driving motor 76 rotates the upper blowing fan 74 in a direction opposite to the upper blowing mode (clockwise direction shown in FIG. 5) in the lower blowing mode, and the lower bidirectional driving motor 86 In the lower blowing mode, the lower blowing fan 84 is rotated in the same direction as the upper blowing fan 74 (clockwise shown in FIG. 5).

At this time, a negative pressure due to the rotation of the upper blower fan 74 and the lower blower fan 84 is formed on the upper portion of the air conditioner, and the air B in the room quickly gathers to the upper portion of the air conditioner. It is drawn into the main body 10 through the upper combined air inlet 2.

The sucked air B passes quickly through the upper blower fan 84 by the suction force of the upper blower fan 74 and the suction force of the lower blower fan 84, so that the upper blower fan 74 and the lower blower fan ( 84, the heat of the refrigerant passing through the heat exchanger 90 while passing through the heat exchanger 90 is taken away.

The heated air B 'is rapidly blown downward through the lower blower fan 84 by the blowing force of the upper blowing fan 74 and the suction force of the lower blowing fan 84, and the lower portion is blown downward. After passing through the side combined air inlet 4, it is discharged to the front lower side of the air conditioner as shown in Figs.

The cold air B ′ discharged to the front lower side of the air conditioner is widened to the lower part of the room and then raised, and the room is heated evenly to a part far from the air conditioner.

On the other hand, the control unit 97 stops both the upper bidirectional drive motor 76 and the lower bidirectional drive motor 86 when an operation stop command is input during the cooling operation or the heating operation as described above. (S5) (S6)

In the air conditioner of the present invention configured as described above, the combined air inlet and outlet of the air is sucked or discharged in the upper and lower portions of the main body, respectively, a plurality of blowing units are installed in the main body, all of the plurality of blowing units in the upper blowing mode Driven by the air blower or the lower blower mode, the air flow resistance of the air is minimized and the blowing ability is improved, so that the cooling / heating is possible quickly. As the cool air is discharged to the upper part of the air conditioner, the entire room is cooled evenly. And, since the warm air is discharged to the lower portion of the air conditioner rises there is an advantage that the entire room can be heated evenly.

In addition, in the control method of the air conditioner of the present invention, in the cooling operation, all of the plurality of blowing fans are rotated in one of the clockwise direction and the counterclockwise direction, and in the heating operation, all of the plurality of blowing fans are different from the cooling operation. Since it is rotated in the opposite direction, it is possible to change the direction of blowing of air to perform the optimal air conditioning for the characteristics of the cooling operation and heating operation, there is an advantage that the indoor air can be quickly blown / heat exchange.

Claims (4)

A main body having combined air inlets and outlets through which air is sucked or discharged, respectively; A plurality of blowing units installed in the main body; A heat exchanger disposed between the plurality of blower units; And a control unit for driving all of the plurality of blower units to the upper blowing mode to discharge cold air to the upper side during the cooling operation, and for driving all of the plurality of blower units to the lower blowing mode to discharge the warmth downward during the heating operation. Air conditioner, characterized in that. The method of claim 1, Each of the plurality of blower units includes a blower fan; An air conditioner, characterized in that consisting of a bidirectional drive motor for rotating the blowing fan forward, reverse. The method of claim 2, The plurality of blower units and the upper blower unit is installed on the upper portion of the main chassis, An air conditioner comprising a lower blower unit installed below the main chassis. An input step of inputting a cooling / heating operation of the air conditioner; If the operation input in the input step is a cooling operation, all of the plurality of blowing fans are rotated in either a clockwise or counterclockwise direction, And if the operation input in the input step is a heating operation, all of the plurality of blowing fans are rotated in a direction opposite to that of the cooling operation.

Images