KR100600745B1 - Indoor unit of air-conditioner - Google Patents

Abstract

The present invention relates to an indoor unit of an air conditioner in which an air discharge port is formed on an upper surface of a cabinet, and a discharge port unit is provided on the upper surface of the cabinet so that the air discharge port can be opened and closed.

The present invention has a structure in which the discharge port unit is provided to be elevated in the air discharge port formed on the upper surface of the cabinet to open and close the air discharge port as the discharge unit is elevated, so that the discharge port unit is lowered into the cabinet when the air conditioner is stopped. Thus, the appearance of the indoor unit due to the discharge port unit is prevented from being deteriorated, the discharge port unit is protected from an external impact, and inflow of foreign matter through the discharge port unit is also advantageous.

Air conditioner, indoor unit, cabinet, air outlet, outlet unit, outlet unit guide, outlet unit lifting means

Description

Indoor unit of air conditioner {Indoor unit of air-conditioner}             

1 is a perspective view when the indoor unit of the air conditioner according to the present invention is in operation,

2 is a perspective view when the indoor unit of the air conditioner according to the present invention is stopped operating;

3 is an exploded perspective view illustrating an indoor unit of an air conditioner according to a first embodiment of the present invention;

4 is a cross-sectional view when the indoor unit of the air conditioner according to the first embodiment of the present invention is in operation;

5 is a cross-sectional view when the indoor unit of the air conditioner according to the first embodiment of the present invention is stopped.

6 is an exploded perspective view illustrating a discharge port unit of an indoor unit of an air conditioner according to a first embodiment of the present invention;

7 is a cross-sectional view when the indoor unit of the air conditioner according to the second embodiment of the present invention is in operation;

8 is a cross-sectional view when the indoor unit of the air conditioner according to the second embodiment of the present invention is stopped.

9 is an exploded perspective view illustrating a discharge port unit of an indoor unit of an air conditioner according to a second embodiment of the present invention;

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

11 is an exploded perspective view showing the indoor unit of the air conditioner according to the prior art.

<Explanation of symbols on main parts of the drawings>

50: base 60: cabinet

72: air inlet 74: air outlet

80: discharge port unit 82: top cover

84: upper frame 84a: front left hook portion

84b: front right hook portion 84c, 87c, 88a: locking groove

85: square frame portion 86: lower frame

87: vertical shield 88: grille

90: discharge port unit guide 92: guide portion

94: support member 96: hook portion

100: blower 102: orifice

104: blower fan 106: blower motor

108: motor mounter 110: heat exchanger

112: left heat exchanger 114: right heat exchanger

120, 140: discharge unit unit lifting means 122, 142: lifting motor

124,144 Drive Male Thread 126,146 Follower Female Thread

128,148: Male thread holder 130,150: Mounting bracket

132,152: fixed part 134,154: support leg

The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit of an air conditioner in which an air discharge port is formed on an upper surface of a cabinet, and a discharge port unit is provided on the upper surface of the cabinet so that the air discharge port can be opened and closed. will be.

In general, an air conditioner is a device that cools or heats a room or purifies the air by using a refrigerant cycle consisting of a compressor, a condenser, an expansion device, and an evaporator to create a more comfortable indoor environment for a user.

10 is a perspective view showing the indoor unit of the air conditioner according to the prior art, Figure 11 is an exploded perspective view showing the indoor unit of the air conditioner according to the prior art.

The indoor unit of the air conditioner according to the prior art, as shown in Figs. 10 and 11, the cabinet 4, which is disposed above the rear portion of the base 2 and the front is open, and A front upper panel 10 disposed at an upper front of the cabinet 4 and having front central discharge holes 6 and front left and right discharge holes 8 formed at the center and both sides thereof, the front part of the base 2 and the A front lower panel 14 disposed between a center of the front upper panel 10 and forming a front left and right suction ports 12 between the front lower part of the cabinet 4 and the front left and right suction ports ( 12, the front center discharge port 6 and the front surface after inhaling air through the left and right suction grills 16 disposed above the base 2 and the front left and right suction ports 12 to protect the base 12; A blower 18 for discharging air through the left and right discharge ports 8 and the air blown by the blower 18 are heated / It comprises a heat exchanger 20 disposed in the space between the front upper panel 10 and the cabinet 4 to be cooled.

A plurality of grills 7 for protecting the inside and dispersing the discharged air are disposed in the front center discharge port 6 of the front upper panel 10 so as to be spaced apart vertically or horizontally, and the front left and right discharge ports ( The vanes 9 for protecting the inner side and for changing the wind direction of the discharged air are rotatably mounted respectively.

The blower 18 is mounted to the lower portion of the cabinet 4 so as to be close to the left and right suction ports 12.

A drain pan 22 receiving a condensate falling from the surface of the heat exchanger 20 is mounted below the lower end of the heat exchanger 20, and the drain pan 22 is formed to extend outward to drain the condensed water collected therein. The drain hose 24 is connected.

After the indoor unit of the air conditioner according to the related art configured as described above is cooled / heated by the heat exchanger 20 when the air sucked through the front left and right suction ports 12 when the blower 18 is driven. It is discharged toward the upper front of the indoor unit through the front center discharge port 6 and the front left and right discharge ports 8.

However, the indoor unit of the air conditioner according to the prior art is formed with a front center discharge port 6 and a front left and right discharge ports 8 at the center and both sides of the front upper panel 10, respectively, and the front center discharge port 6 In addition, the grille 7 is installed and the left and right air discharge ports 8 are separately provided with vanes 9, so that the indoor unit is discharged due to the discharge holes 6 and 8, the grilles 7, and the vanes 9. There is a problem that the appearance of the deterioration.

In addition, when the indoor unit stops driving, foreign matter enters through the front center discharge port 6 and the front left and right discharge ports 8, thereby causing a problem in the indoor unit.

In order to solve the above problems, a recent air conditioner is additionally provided with a discharge port shielding mechanism for shielding the discharge openings 6 and 8 when the driving stops, but the discharge opening shielding mechanism is located close to the discharge openings 6 and 8. In addition to being installed in the combination of the shielding operation of the discharge port (6,8), there is a problem that the structure is very complicated, the installation position is limited, the design cost and assembly cost is also increased.

In addition, the indoor unit of the air conditioner according to the prior art, the discharge port (6, 8) and the inlet 12 is formed only on the front side of the indoor unit, the air sucked to the lower side of the front side of the air conditioner front side of the air conditioner Since only discharged to the top, there is a problem that more efficient three-dimensional cooling / heating is difficult.

The present invention has been made to solve the above problems, the object of the present invention is formed in the upper surface of the cabinet and the discharge port unit is installed on the upper surface of the cabinet so that the air outlet can be opened and closed at the same time, so that the The present invention provides an indoor unit of an air conditioner in which the appearance of the indoor unit due to the air discharge port is prevented from being prevented and intrusion of foreign matter through the air discharge port is prevented.

Another object of the present invention is to provide an indoor unit of an air conditioner in which a structure for lifting and lowering the discharge port unit is simply configured and air is three-dimensionally discharged by the discharge port unit to efficiently cool / heat the room.

The indoor unit of the air conditioner of the present invention for realizing the above object is a cabinet with a blower and heat exchanger built-in air discharge port formed on the upper surface; A discharge port unit comprising an upper frame, a lower frame disposed below the upper frame and having an open surface formed between the upper frame, and a grill disposed on an open surface between the upper frame and the lower frame; It is characterized in that it comprises a discharge port unit lifting means for lifting the discharge port unit is formed in the discharge port unit and the cabinet to open and close the air discharge port.

Here, the cabinet is equipped with a discharge port unit guide to the air discharge port to support the discharge port unit and guide the lifting and lowering of the discharge port unit. The discharge port unit guide is disposed in the air discharge port and guides for guiding the elevating of the discharge port unit, and is installed in the lower portion of the guide portion to support the discharge port unit, characterized in that composed of a support member formed with a ventilation hole on one side It is done.

In addition, an opening hole is formed in the lower frame of the discharge port unit so that air can be introduced into the center, and a mounting bracket in which the discharge hole unit lifting means is installed is formed in the opening hole. The mounting bracket includes a fixing part to which the discharge unit unit lifting means is installed and fixed, and a plurality of supporting legs connected to both ends of the fixing part and the lower frame to support the fixing part.

The discharge port unit lifting means may include a lift motor provided in one of the discharge port unit and the cabinet, a drive male screw installed on a rotation shaft of the lift motor and rotated by the lift motor, and the other of the discharge port unit and the cabinet. It is composed of a driven female screw is installed so that the drive male screw is rotatably engaged.
The drive male screw as described above is formed longer in the vertical direction than the lifting height of the discharge port unit.

The driven female screw is installed in the fixing portion of the mounting bracket, and the lifting motor and the driving male screw are installed in the support member of the discharge port unit guide so as to face the driven female screw. A locking jaw protrudes along an outer circumference of the driving male screw, and the supporting member includes a male screw holder rotatably supporting the locking jaw.

Unlike the above, the driven female screw is installed in the support member of the discharge port unit guide, and the lifting motor and the driving male screw are installed in the fixing portion of the mounting bracket so as to face the driven female screw. A locking jaw protrudes along an outer circumference of the driving male screw, and the fixing portion includes a male screw holder rotatably supporting the locking jaw.
On the other hand, any one of the opposing surface of the discharge port unit and the discharge port unit guide is provided with a roller so that the discharge port unit can be raised and lowered smoothly.
The discharge port unit is equipped with a top cover for forming an appearance on the upper surface of the upper frame, the front and both sides are formed to be opened between the upper frame and the lower frame.

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

1 is a perspective view when the indoor unit of the air conditioner according to the present invention is in operation, and FIG. 2 is a perspective view when the indoor unit of the air conditioner according to the present invention is stopped.

1 and 2, the indoor unit of the air conditioner according to the present invention is disposed on the base 50 and the upper side of the base 50, and the air inlet 72 is formed on the left side and the right side, respectively. And the cabinet 60 having an air discharge port 74 formed on the upper surface thereof, and installed to be elevated in the air discharge port 74 of the cabinet 60, and distribute the air discharged to the air discharge port 74 to the front and both sides. And a discharge port unit lifting means formed in the discharge port unit 80 and the discharge port unit 80 and the cabinet 60 to lift the discharge port unit 80 upward and downward to open and close the air discharge port 74. It is composed.

The upper surface of the cabinet 60 is formed to form the air discharge port 74, the air discharge port 74 is sealed as the discharge port unit 80 is lowered and as the discharge port unit 80 is raised Open.

The discharge port unit 80 operated as described above has a front and left and right sides open and at the same time the upper and rear surfaces are formed in a clogged structure to distribute and discharge the air discharged to the air discharge port 74 to the front and both sides of the indoor unit Let's go.

3 is an exploded perspective view illustrating an indoor unit of an air conditioner according to a first embodiment of the present invention, and FIGS. 4 and 5 are operated when the indoor unit of the air conditioner according to the first embodiment of the present invention is in operation. 6 is an exploded perspective view showing a discharge port unit of an indoor unit of an air conditioner according to a first embodiment of the present invention.

As shown in Figures 3 to 6, the indoor unit of the air conditioner according to the first embodiment of the present invention, the base 50 is a base installation unit 52, the cabinet 60 is mounted and mounted, The drain pan portion 54 protruding in the center of the base installation portion 52 to collect the condensate falling from the heat exchanger 110 to be described later, and the air conditioner to be spaced apart from the wall or other furniture in the room It is composed of a spacer 56 mounted on the edge of the base installation portion 52 to protrude more than the circumference of the base installation portion 52.

The drain pan 54 is connected to the drain hose 54a for draining the collected condensate to the outside.

The cabinet 60 includes a left cabinet 61 having a left air inlet 72a at the bottom, a right cabinet 62 having a right air inlet 72b at the bottom, and a left cabinet 61 and a left cabinet ( And a front lower panel 63 disposed at the lower front of the front panel 62 and a front upper panel 64 disposed at the upper front of the left cabinet 61 and the right cabinet 62.

Here, the left side cabinet 61 is mounted with a left side suction grille 65a to protect the inside of the left side air inlet 72a. The left air discharge port 76a is formed at an upper portion of the left cabinet 61, and a left discharge grill 66a is mounted to protect the inside of the left air discharge port 76a.

In addition, the right side suction grille 65b is mounted on the right side cabinet 62 to protect the inside of the right side air inlet 72b. A right air discharge port 76b is formed at an upper portion of the right cabinet 62, and a right discharge grill 66b for protecting the inside of the right air discharge port 76b is mounted.

In addition, the front upper panel 64 is equipped with a display (64a) (64b) to display the operation information of the indoor unit of the air conditioner, the operation of the air conditioner behind the front upper panel 64 The main control panel 67 and the auxiliary control panel 68 including the electrical components for controlling the control panel is disposed vertically between the front part of the left cabinet 61 and the right cabinet 62.

The cabinet 60 configured as described above guides the lifting and lowering of the discharge port unit 80, and a discharge port unit guide 90 supporting the discharge port unit 80 is mounted to the air discharge port 74. The lower side of the 60 is formed with a through hole 69 through which the drain hose 54a and the refrigerant pipe 119 pass through the cabinet 60.

The discharge port unit guide 90 is disposed inside the air discharge port 74 to guide the lifting of the discharge port unit 90, and is provided below the guide part 92 to provide the discharge unit. It consists of a support member 94 for supporting 80.

Here, the guide portion 92 is formed in a box-shaped structure having an upper and lower surfaces and at the same time having a predetermined height to guide the lifting and lowering of the discharge port unit 80, and the hook portion having a 'a' cross-sectional shape along an upper circumference thereof ( 96 is formed to protrude in an outward direction and is downwardly engaged with an open upper end of the cabinet 60 forming the air discharge port 74.

In addition, the support member 94 is mounted on the open lower surface of the guide part 92 to support the discharge port unit 80 so as to ensure the straightness of the air blown through the air discharge port 74. It is a lattice member forming a plurality of ventilation holes 94a.

On the other hand, the discharge port unit 80 has a top cover 82 for forming the outer appearance of the top of the air conditioner, an upper frame 84 disposed below the top cover 82, and the upper frame 84 A lower frame 86 disposed at a lower side of the lower frame 86 and having three surfaces open between the upper frame 84 and a grill 88 disposed at an open surface between the upper frame 84 and the lower frame 86. It is composed.

The upper frame 84 is formed to protrude downward from the front hook portion (84a, 84b) in which the entirety of the grill 88 is fixed. The front hangers 84a and 84b include a left front hanger 84a on the front left side and a right front hanger 84b on the front right side, and the left front hanger 84a and the right front hanger ( In each of the 84b), the locking groove 84c is formed to be spaced up and down so that the grill 88 is inserted and locked.

The upper frame 84 formed as described above is attached to the bottom surface of the top cover 82 with an adhesive or fixed by fastening means such as a hook or fastening bolt. In addition, the lower ends of the front hangers 84a and 84b are attached to the upper surface of the lower frame 86 by an adhesive or fixed by fastening means such as hooks or fastening bolts.

The lower frame 86 includes a rectangular frame portion 85 having an opening hole 85a formed at the center thereof, and a vertical shield portion 87 mounted on a rear side of the rectangular frame portion 85. The square frame portion 85 has a roller (85b) is mounted on the front and back to help the lifting and lowering of the discharge port unit 80, the rear of the grill 88 on the back of the vertical shield (87). The engaging rear hook portions 87a and 87b protrude.

That is, the rear hook portions 87a and 87b are composed of a left rear hook portion 87a on the rear left side and a right rear hook portion 87b on the rear right side, and the left rear hook portion 87a and the right rear hook In each of the portions 87b, the locking grooves 87c are formed to be spaced up and down so that the grill 88 is inserted and engaged.

The lower frame 86 formed as described above has an upper end of the vertical shielding part 87 or rear hook parts 87a and 87b attached to the bottom surface of the upper frame 84 with an adhesive or fastening a hook or fastening bolt. Fixed by means.

The grills 88 are disposed on the front hangers 84a and 84b of the upper frame 84 and the rear hangers 87a and 87b of the lower frame 86 to be spaced apart from each other in the vertical direction. After the opening is formed in a rectangular ring shape is cut one side as a whole to be fixed by the elastic force.

That is, the grill 88 includes a locking groove 84c formed in the left front hook portion 84a and the right front hook portion 84b of the upper frame 84, and the left rear hook portion of the lower frame 86. It is fitted to the locking groove 87c formed in the 87a and the right rear hook part 87b.

In addition, a locking groove 88a is formed at a position opposite to the left front hook portion 84a and the right front hook portion 84b on all of the grills 88, so that the left side when the grill 88 is mounted. The front hanger 84a and the right front hanger 84b are fitted.

Since the grill 88 is disposed on the opened three surfaces of the discharge port unit 80 as described above, the front surface of the discharge port unit 80 is dispersed while dispersing air discharged to the front and both sides of the discharge port unit 80. And the left and right sides.

In addition, the inside of the cabinet 60 is a blower 100 for sucking the air through the left air inlet (72a) and the right air inlet (72b) and then discharges to the indoor side through the discharge port unit 80, and the A heat exchanger 110 is installed to heat / cool the air blown by the blower 100.

The blower 100 is installed above the heat exchanger 110 so as to blow the heat exchanged air while passing through the heat exchanger 110 to the air discharge port 74 of the cabinet 60. The blower 100 includes an orifice 102 forming a blowing flow path, a blowing fan 104 located inside the orifice 102, and a blowing motor 106 provided with a rotating shaft in the blowing fan 104. And a motor mounter 108 for fixing the blower motor 106.

The heat exchanger 110 is disposed to be inclined toward the inner center of the cabinet 60 toward the lower side of the left cabinet 61, and to the lower side of the right cabinet 62. The left heat exchanger 112 and the right side are disposed to obstruct the right side heat exchanger 114 and the front surface of the left heat exchanger 112 and the right heat exchanger 114. The left side heat exchange part 112 and the right heat exchange part 114 to block between the front cover 116 mounted on the front side of the heat exchange part 114 and the back surface of the left heat exchange part 112 and the right heat exchange part 114. It consists of a rear cover 118 mounted on the back of the).

Any one of the left heat exchanger 112 and the right heat exchanger 114 is connected to a refrigerant pipe 119 connected to the outdoor unit.

On the other hand, the discharge port unit lifting means 120 is provided on the lifting motor 122 provided on the support member 94 of the discharge unit unit guide 90, the rotating shaft of the lifting motor 122 is the lifting motor 122 And a driven female screw 126 installed on the lower frame 86 of the discharge port unit 80 and rotatably fastened to the driving male screw 124.

The elevating motor 122 is installed in the center of the support member 94 so that the rotating shaft is disposed upward, and the driving male screw 124 is fixed to the rotating shaft to rotate together with the rotating shaft.

The driving male screw 124 is a rod-shaped member having a thread formed on the outer circumference thereof, and is formed to be longer than the lifting height of the discharge port unit 80, and the locking jaw 124a protrudes along the outer circumference to protrude from the male screw holder 128. By the support member 94 so as to be rotatable.

That is, the male screw holder 128 is mounted and fixed to the upper surface of the support member 94 so that the locking jaw 124a is locked to prevent the driving male screw 124 from flowing and escaping.

The driven female screw 126 is an annular member having a thread formed in the inner circumference thereof, and is positioned at the center of the opening hole 85a of the lower frame 86 so as to be engaged with the driving male screw 124. The mounting bracket 130 is formed so that the driven female screw 126 is installed and fixed.

The mounting bracket 130 has a fixing part 132 to which the driven female screw 126 is installed and fixed at the center, and both ends thereof are connected to the fixing part 132 and the square frame part 85 to fix the fixing part 132. It consists of a plurality of support legs 134 for supporting.

Here, the fixing part 132 has an opening formed in the center thereof, and the driven female screw 126 is inserted and fixed, and the plurality of the supporting legs 134 are disposed at the same angle and the outer circumference of the fixing part 132. Both ends are fixed to the inner circumferences of the and rectangular frame portions 85, respectively.

Looking at the operation of the indoor unit of the air conditioner according to the first embodiment of the present invention configured as described above are as follows.

First, when the air conditioner is operated and operated, the lifting motor 122 is driven to rotate the driving male screw 124, and the driven female screw 126 is lifted by the driving male screw 124, and the driven female screw is driven. The discharge port unit 80 is raised together with 126 to open the front and both side surfaces of the discharge port unit 80.

That is, the mounting bracket 130 and the lower frame 86 on which the driven female screw 126 is installed are raised together with the driven female screw 126, and the upper frame 84 and the grill 88 are provided by the lower frame 86. ) And the top cover 82 are also raised. As the discharge port unit 80 is raised in this manner, the air discharge port 74 formed on the upper surface of the cabinet 60 is opened.

On the other hand, the roller 85b is rotated along the discharge unit guide 90 when the lower frame 86 is raised to help the discharge unit 80 to rise smoothly.

In addition, the air conditioner drives the compressor of the outdoor unit connected to the heat exchanger 110 by the refrigerant pipe 119 together with the rise of the outlet unit 80 as described above, and the blower motor 106 of the blower 100. ) Will be driven.

When the compressor is driven, the refrigerant passes through the left heat exchange part 112 and the right heat exchange part 114 of the heat exchanger 110, and the left heat exchange part 112 and the right heat exchange part of the heat exchanger 110. The air around 114 is heat exchanged with the refrigerant to cool / heat.

In addition, when the blower motor 106 is driven, the blower fan 104 is rotated, and the outside air of the air conditioner is provided through the left air inlet 72a and the right air inlet 72b of the cabinet 60. It is sucked into the cabinet 60, cooled or heated while passing through the left heat exchange part 112 and the right heat exchange part 114 of the heat exchanger 110, and then passes through the blower 100 to pass the cabinet 60. ) Is blown to the inner upper part.

The heat-exchanged air blown into the upper part of the cabinet 60 passes vertically through the ventilation hole 94a formed in the support member 94 of the discharge unit guide 90, and then the opening hole of the lower frame 86. The discharge port unit 80 is blown into the discharge port unit 80 through a vertical shield portion 87 of the upper frame 84 and the lower frame 86 of the discharge port unit 80. The heat exchanged to the open front and both sides is dispersed in a horizontal direction change.
That is, the heat-exchanged air is discharged in three directions of the room through the front side and both side surfaces of the air conditioner so that the room is three-dimensionally cooled or heated.

On the other hand, when the air conditioner is stopped and operated, the compressor of the outdoor unit and the blowing motor 106 of the indoor unit are stopped driving, and the lifting motor 122 is driven back in the opposite direction as when the discharge port unit 80 is raised. .

When the driving motor 122 reversely drives, the driving male screw 124 is reversely rotated in the opposite direction as when the discharge port unit 80 is raised, and the driven female screw 126 is lowered by the driving male screw 124. The discharge port unit 80 is lowered together with the driven female screw 126 to be inserted into the air discharge port 74 to seal the air discharge port 74.

That is, the mounting bracket 130 and the lower frame 86 are lowered together with the driven female screw 126, and the upper frame 84, the grill 88, and the top cover 82 together with the lower frame 86. Is lowered. As the discharge port unit 80 is lowered as described above, the air discharge port 74 is sealed by the top cover 82, and the open three surfaces of the discharge port unit 80 are formed on the upper inner surface of the cabinet 60. Blocked by

7 and 8 are cross-sectional views when the indoor unit of the air conditioner according to the second embodiment of the present invention is in operation and the operation is stopped, and FIG. 9 is an indoor unit of the air conditioner according to the second embodiment of the present invention. An exploded perspective view of the discharge port unit is shown.

Here, the same reference numerals as the drawings shown above indicate the same member.

As shown in Figs. 7 to 9, the indoor unit of the air conditioner according to the second embodiment of the present invention, the discharge unit unit lifting means 140 is elevated in the lower frame 86 of the discharge unit unit 80 It is installed on the motor 142, the rotating shaft of the elevating motor 142, the drive male screw 144 rotated by the elevating motor 142, and the support member 94 of the discharge unit guide 90 The driven male screw 144 is rotatably fastened to the driving male screw 144, and the rest of the configuration is the same as that of the first embodiment described above.

Here, the lifting motor 142 is located in the center of the opening hole 85a of the lower frame 86, so that the lifting motor 142 is fixed to the opening hole 85a of the lower frame 86. The mounting bracket 150 is formed.

The mounting bracket 150 has both ends connected to a fixing part 152 to which the driven female screw 146 is installed and fixed at the center, and a square frame part 85 of the fixing part 152 and the lower frame 86. It is composed of a plurality of support legs 154 for supporting the fixing portion 152.

The fixing part 152 is formed with an opening in the center thereof, and the lifting motor 142 is inserted and fixed so that the rotation shaft is downward, and the plurality of supporting legs 154 are spaced at the same angle and the fixing part 152. Both ends are fixed to the outer circumference of the and the inner circumference of the rectangular frame portion 85, respectively.

In addition, the driving male screw 144 is a rod-shaped member having a screw thread formed on an outer circumference thereof, and is formed longer than the lifting height of the discharge port unit 80, and an engaging screw 144a protrudes along the outer circumference of the male screw holder 148. It is supported so as to be rotatable by the fixing portion 152.

That is, the male screw holder 148 is fixed to the lower surface of the fixing part 152 so that the locking jaw 144a is locked to prevent the driving male screw 144 from flowing and escaping.

In addition, the driven female screw 146 is an annular member having a thread formed in the inner circumference thereof, and is fixedly installed at the center of the support member 94 of the discharge port unit guide 90 so that the driving male screw 144 is engaged.

On the other hand, looking at the operation of the indoor unit of the air conditioner according to the second embodiment of the present invention, when the driving screw 144 is rotated in the forward direction by the lifting motor 142, the driving screw 144 is rotated while When the driving male screw 144 is moved upward from the driven female screw 146, and the driving male screw 144 is rotated in the reverse direction by the lifting motor 142, the driving male screw 144 is moved downward from the driven female screw 146. The operation of is identical to that of the first embodiment, and will be omitted.

Since the indoor unit of the air conditioner according to the present invention configured as described above has a structure in which a discharge port unit is liftable at an air discharge port of a cabinet, and the air discharge port is opened and closed as the discharge port unit is lifted, the air conditioner stops driving. The discharge port unit is disposed lowered into the air discharge port to prevent the appearance of the indoor unit from being lowered due to the discharge port unit, and the cabinet protects the discharge port unit from external impact, and also prevents the inflow of foreign matter through the discharge port unit. have.

In addition, the discharge port unit is the upper frame is disposed on the lower side of the top cover, the lower frame is disposed so that the front side and both sides are open to the lower side of the upper frame and the grill is disposed on the open surface between the upper frame and the lower frame, The air is dispersed and discharged through the open three sides of the unit, so that the three-dimensional cooling / heating of the room is more efficient.

In addition, since the discharge port unit guide for guiding the lifting and lowering of the discharge port unit is installed at the air discharge port of the cabinet, the discharge port unit has the advantage that the lifting is more stable.

In addition, either one of the discharge port unit and the discharge port unit guide is provided with a lifting motor and a driving male screw, and the other is driven with a driven female screw, and as the driving motor is driven, the driving male screw and the driven female screw move relative to the lifting unit. Since the lifting structure of the discharge port unit is very simple, the operation reliability during the lifting of the discharge port unit is also improved.

Claims (13)

A cabinet in which a blower and a heat exchanger are built in, and an air discharge port is formed on an upper surface thereof; A discharge port unit comprising an upper frame, a lower frame disposed below the upper frame and having an open surface formed between the upper frame, and a grill disposed on an open surface between the upper frame and the lower frame; And an ejection opening unit elevating means formed in the ejection opening unit and a cabinet to lift the ejection opening unit to open and close the air ejection opening. The method of claim 1, The cabinet is an indoor unit of the air conditioner, characterized in that the discharge port unit guide is mounted to the air discharge port to support the discharge port unit and guide the lifting and lowering of the discharge port unit. The method of claim 2, The discharge port unit guide is disposed in the air discharge port and guides for guiding the elevating of the discharge port unit, and is installed in the lower portion of the guide portion to support the discharge port unit, characterized in that composed of a support member formed with a ventilation hole on one side Indoor unit of air conditioner. The method of claim 3, wherein And an opening hole is formed in the lower frame of the discharge port unit so that air can be introduced into the center, and the mounting hole has a mounting bracket provided with the discharge hole unit lifting means. The method of claim 4, wherein The mounting bracket is an indoor unit of an air conditioner, characterized in that the discharge port unit lifting means is installed and fixed, and a plurality of support legs connected to both ends of the fixing portion and the lower frame to support the fixing portion. The method of claim 5, wherein The discharge unit unit lifting means is provided in one of the discharge unit and the cabinet, the elevating motor, a drive male screw installed on the rotary shaft of the elevating motor and rotated by the elevating motor, and the other of the discharge unit and the cabinet The indoor unit of the air conditioner, characterized in that the drive male screw is composed of a driven female screw to be rotatably engaged. The method of claim 6, The drive male screw is an indoor unit of an air conditioner, characterized in that formed in the vertical direction longer than the lifting height of the discharge port unit. The method of claim 6, And the driven female screw is installed on the fixing portion of the mounting bracket, and the lifting motor and the driving male screw are installed on the support member of the discharge port unit guide so as to face the driven female screw. The method of claim 8, An indoor unit of the air conditioner, wherein the driving jaw is formed to protrude along the outer circumference, and the support member includes a male screw holder rotatably supporting the locking jaw. The method of claim 6, And the driven female screw is installed on the support member of the discharge port unit guide, and the lifting motor and the driving male screw are installed on the fixing part of the mounting bracket so as to face the driven female screw. The method of claim 10, An indoor unit of an air conditioner, wherein the driving male screw has a locking jaw protrudingly formed along an outer circumference thereof, and the fixing portion includes a male screw holder rotatably supporting the locking jaw. The method according to any one of claims 2 to 11, The indoor unit of the air conditioner, characterized in that the roller is provided on one of the opposite surface of the discharge port unit and the discharge port unit guide to smoothly lift the discharge port unit. The method according to any one of claims 1 to 11, The discharge port unit is an indoor unit of the air conditioner, characterized in that the top cover is formed on the upper surface of the upper frame, the front and both sides are opened between the upper frame and the lower frame.

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