KR101785670B1 - Indoor unit and Air conditioner having it - Google Patents

Indoor unit and Air conditioner having it Download PDF

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Publication number
KR101785670B1
KR101785670B1 KR1020160002044A KR20160002044A KR101785670B1 KR 101785670 B1 KR101785670 B1 KR 101785670B1 KR 1020160002044 A KR1020160002044 A KR 1020160002044A KR 20160002044 A KR20160002044 A KR 20160002044A KR 101785670 B1 KR101785670 B1 KR 101785670B1
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KR
South Korea
Prior art keywords
air
vane
curvature
indoor unit
longitudinal
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KR1020160002044A
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Korean (ko)
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KR20170082818A (en
Inventor
오지혜
서범수
황본창
Original Assignee
엘지전자 주식회사
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Priority to KR1020160002044A priority Critical patent/KR101785670B1/en
Publication of KR20170082818A publication Critical patent/KR20170082818A/en
Application granted granted Critical
Publication of KR101785670B1 publication Critical patent/KR101785670B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2001/0037—

Abstract

The present invention relates to an indoor unit and an air conditioner having the indoor unit, and more particularly, to an indoor unit having an air inlet through which external air flows; An indoor heat exchanger for exchanging heat between the introduced outside air and the refrigerant; An air discharge port through which the heat exchanged air with the refrigerant of the indoor heat exchanger is discharged; And an indoor fan which is configured to suck outside air through the air inlet and discharge the air toward the air outlet, wherein the air outlet includes a vane formed to open and close the air outlet and a curtain provided on the opposite side of the vane, And the discharge guide has a plurality of different curvatures along a longitudinal direction of the discharge port, and an air conditioner having the same.

Description

Technical Field [0001] The present invention relates to an indoor unit and an air conditioner having the same,

The present invention relates to an indoor unit and an air conditioner having the indoor unit. More particularly, the present invention relates to an indoor unit capable of securing a wide range of air discharged from an indoor unit to a corner portion of an indoor unit, and an air conditioner having the indoor unit.

Generally, the air conditioner includes a compressor for compressing refrigerant, an indoor heat exchanger for exchanging heat with indoor air, an expansion valve for expanding refrigerant, and an outdoor heat exchanger for exchanging heat with outdoor air.

 At this time, the compressor and the outdoor heat exchanger may be installed in the indoor unit, and the indoor heat exchanger with the expansion valve may be installed in the indoor unit. Of course, it is also possible that the expansion valve is provided in the outdoor unit.

In addition, an indoor fan may be provided on one side of the indoor heat exchanger, and an outdoor fan may be provided on one side of the outdoor heat exchanger.

Meanwhile, the indoor heat exchanger may include an air inlet and an air outlet. At this time, the air introduced into the air inlet by the operation of the indoor fan can be discharged to the air outlet after exchanging heat with the refrigerant in the indoor heat exchanger.

At this time, the discharge range of the air discharged from the indoor unit can be determined according to the shape of the air outlet.

For example, in the case of an indoor unit installed or buried in a ceiling, there is a problem that the discharge range of the air discharged from the air discharge port does not reach the corner of the indoor unit.

1 is a view showing a part of the structure of such a conventional indoor unit. Specifically, FIG. 1 shows an air inlet and an air outlet provided on a bottom surface of a conventional ceiling-mounted indoor unit.

Referring to FIG. 1, the conventional indoor unit has an air inlet 1 through which air flows, and an air outlet 2 through which indoor air is exchanged with an indoor heat exchanger (not shown) in the indoor unit.

The air inlet 1 is provided at the center of the lower surface of the indoor unit so that external air can be introduced into the indoor unit through the air inlet 1 in the direction of the arrow shown.

The air outlet 2 has a predetermined length, and a plurality of air outlet ports 2 may be provided along the circumference of the air inlet 1.

The air inlet (1) and the air outlet (2) are formed in a substantially rectangular frame (4). Specifically, the air inlet 10 is provided at a central portion of the frame 4, and a plurality of air outlet ports 2 are arranged around the air inlet 10 at positions corresponding to the respective sides of the frame 4 do.

For example, four air outlet ports 2 may be provided corresponding to the respective sides of the rectangular frame 4.

On the other hand, the discharge range of air discharged from the air discharge port (2) is limited to the length of the air discharge port (2). That is, the air discharged from the air outlet 2 can not form an air flow toward the corner of the indoor unit.

Therefore, according to the conventional indoor unit, the air discharged from the indoor unit does not reach the indoor space corresponding to the corner portion of the indoor unit.

In addition, the conventional indoor unit is provided with a wind direction adjusting blade 3 on the air outlet 2 in order to enlarge the air discharge range in the left and right direction.

However, due to the wind direction adjusting blade 3, the conventional indoor unit has a complicated structure and increases the number of assembled parts.

In addition, the conventional indoor unit has a problem in that the unit price of the product is increased due to a complicated structure and an increase in the number of components.

Further, a method of providing an air outlet at the corner portion of the frame 4 may be considered. In this case, the flow resistance of the straight portion is increased although the airflow at the corner portion is improved. Further, as the number of the air outlets increases, there is a problem that the internal structure such as the drain pan must be completely changed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an indoor unit and an air conditioner having the indoor unit that can expand the discharge range of air discharged from an air outlet of an indoor unit.

In addition, the present invention provides an indoor unit capable of discharging air discharged from the air discharge port to an indoor space corresponding to a corner of an indoor unit without providing a separate air conditioning vane in the air discharge port of the indoor unit, And an object of the present invention is to provide a device.

Another object of the present invention is to provide an indoor unit capable of enlarging a discharge range of air without changing the frame in which the air outlet and the air inlet are formed, and an air conditioner having the indoor unit.

It is another object of the present invention to provide an indoor unit and an air conditioner having the indoor unit that can reduce the temperature variation of the indoor space by enlarging the discharge range of the air discharged from the indoor unit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an air- An indoor heat exchanger for exchanging heat between the introduced outside air and the refrigerant; An air discharge port through which the heat exchanged air with the refrigerant of the indoor heat exchanger is discharged; And an indoor fan which is configured to suck outside air through the air inlet and discharge the air toward the air outlet, wherein the air outlet includes a vane formed to open and close the air outlet and a curtain provided on the opposite side of the vane, And the discharge guide has a plurality of different curvatures along the longitudinal direction of the discharge port.

At this time, the curvature of the discharge guide may be smaller at both ends in the longitudinal direction of the discharge port than the longitudinal center part of the discharge port.

Specifically, the ejection guide has a curvature change start point at a predetermined point from the longitudinal center of the ejection guide toward both ends in the longitudinal direction of the ejection guide, and the curvature change start point is located inside the longitudinal direction of the ejection guide The curvature of the discharge guide in the longitudinal direction may be smaller than that of the discharge guide.

In addition, the curvature of the discharge guide in the longitudinal direction of the discharge guide may be gradually reduced toward both ends in the longitudinal direction of the discharge guide with reference to the curvature change starting point.

A plurality of air inlet ports are formed in a substantially rectangular inlet frame. The air outlet ports are provided at positions corresponding to the respective sides of the inlet frame. The corners of the inlet frame have a predetermined radius of curvature As shown in FIG.

At this time, the position of the start point of the curve at which the curve starts may correspond to the position of the curvature change start point.

The curvature change start points provided in the air discharge ports located on opposite sides of the indoor unit in the width direction or the longitudinal direction are set to be equal to the curved start point provided on the side of the inlet frame located opposite to each other in the width direction or the longitudinal direction of the indoor unit. Lt; / RTI >

The thickness of the center of the vane in the longitudinal direction may be greater than the thickness of both ends in the longitudinal direction of the vane.

That is, the thickness of the vane may become gradually thinner from the longitudinal center of the vane to both longitudinal ends of the vane so that the width of the air outlet increases from the longitudinal center of the air outlet to the longitudinal end thereof .

Specifically, the vane has a first surface facing the air discharge port side and two surfaces facing the first surface, the first surface facing toward both longitudinal ends of the vane at the longitudinal center of the vane, And may be inclined to approach the second surface.

According to another aspect of the present invention, there is provided a refrigerator comprising: a compressor configured to compress a refrigerant; an outdoor heat exchanger for exchanging heat between the refrigerant and outdoor air; and an outdoor fan disposed at one side of the outdoor heat exchanger; An indoor heat exchanger for exchanging heat between the refrigerant and the room air; and an indoor unit having an indoor fan at one side of the indoor heat exchanger, wherein the indoor unit includes: an air inlet through which outside air flows; And a plurality of air discharge openings provided around the air inlet and partitioned by a vane having a predetermined length and a discharge guide provided on the opposite side of the vane and having a predetermined curvature, And the curvature of the discharge port is formed to be different along the longitudinal direction of the discharge port.

At this time, the ejection guide has a curvature change start point at a predetermined point from the longitudinal center of the ejection guide toward both longitudinal ends of the ejection guide, and the ejection guide is moved from the center of the longitudinal direction to the curvature change start point 1 curvature and has a second curvature smaller than the first curvature from the curvature change start point to both longitudinal ends of the discharge guide.

In addition, the second curvature may gradually decrease from the curvature change starting point toward both ends in the longitudinal direction of the discharge guide.

In addition, the air inlet is formed in a plurality of inlet frames divided by a substantially quadrangular shape, the air outlet is provided at a position corresponding to each side of the inlet frame, and the corners of the inlet frame have a predetermined radius of curvature And the position of the start point of the curve at which the curve starts may correspond to the position of the curvature change start point.

In addition, the thickness of the vane may be gradually thinner from the longitudinal center of the vane to both longitudinal ends of the vane such that the width of the air outlet increases from the longitudinal center of the air outlet toward the longitudinal end thereof .

According to the present invention, it is possible to provide an indoor unit capable of enlarging a discharge range of air discharged from an air discharge port of an indoor unit, and an air conditioner having the indoor unit.

The present invention also provides an indoor unit capable of discharging air discharged from the air outlet to an indoor space corresponding to a corner of the indoor unit without providing a separate air conditioner in the air outlet of the indoor unit, Can be provided.

In addition, the present invention can provide an indoor unit and an air conditioner having the indoor unit that can expand the air discharge range without changing the frame in which the air outlet and the air inlet are formed.

Further, the present invention can provide an indoor unit and an air conditioner having the indoor unit that can reduce the temperature variation of the indoor space by enlarging the discharge range of the air discharged from the indoor unit.

1 is a view showing a part of a conventional indoor unit.
2 is a view showing an air conditioner according to the present invention.
3 is a longitudinal sectional view showing the indoor unit shown in Fig.
4 is a bottom view of the indoor unit.
5 (a) and 5 (b) are longitudinal sectional views of different positions along the longitudinal direction of the air outlet in the indoor unit shown in FIG. 3;
6 is a view showing a part of the structure of an indoor unit according to the present invention.
7 is a view for explaining a difference in air discharge range in a conventional indoor unit and an indoor unit according to the present invention.

Hereinafter, an indoor unit according to the present invention and an air conditioning apparatus having the indoor unit will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

2 is a view showing an air conditioner according to the present invention. 2 shows a refrigerant circulation structure of the air conditioner according to the present invention.

Referring to FIG. 2, the air conditioner 10 includes a compressor 100, an indoor heat exchanger 200, an expansion valve 300, and an outdoor heat exchanger 400. In the illustrated embodiment, "I" represents an indoor unit and "O" represents an outdoor unit.

The compressor 100 is formed to compress the refrigerant. That is, the compressor 100 may be formed so as to pressurize the refrigerant at a low temperature and to make the refrigerant at high temperature and high pressure. At least one of the compressors 100 may be provided in the air conditioner 10.

When a plurality of compressors 100 are provided in the air conditioner 10, a plurality of compressors may be provided in series and / or in parallel along the flow direction of the refrigerant.

The indoor heat exchanger 200 may be formed to exchange heat with indoor air. That is, the indoor heat exchanger 200 may be configured to exchange heat between indoor air and refrigerant flowing into the indoor heat exchanger 200.

For example, the indoor heat exchanger 200 may perform the function of the evaporator in the cooling mode of the air conditioner 100 and the function of the condenser in the heating mode.

The outdoor heat exchanger 400 may be configured to exchange heat with outdoor air. That is, the outdoor heat exchanger 400 may be formed to exchange heat between the outdoor air and the refrigerant flowing into the outdoor heat exchanger 400.

For example, the outdoor heat exchanger 400 may perform the function of the condenser in the cooling mode of the air conditioner 100 and the evaporator in the heating mode.

The indoor heat exchanger 200 and the outdoor heat exchanger 400 may be a fin-tube type heat exchanger. The indoor heat exchanger 200 may be provided with an indoor fan 210 and the outdoor heat exchanger 400 may be provided with an outdoor fan 410.

The air conditioner (10) may include a flow path switching valve (600) for switching the circulation direction of the refrigerant when the cooling mode and the heating mode are switched. The flow path switching valve 600 may be formed as a four-way valve.

For example, the channel switching valve 600 may be configured to guide the refrigerant discharged from the compressor 100 to the outdoor unit in the cooling mode and to guide the refrigerant discharged from the compressor 100 to the indoor unit in the heating mode.

In the meantime, oil can be received in the compressor 100 for smooth operation of the compressor 100.

At this time, the oil in the compressor 100 may be mixed with the refrigerant according to the driving of the compressor 100, and may be discharged together with the refrigerant from the compressor 100. Hereinafter, for convenience of explanation, the fluid in which the refrigerant and the oil are mixed is defined as a "mixer ".

When such a mixer circulates the refrigerant cycle of the air conditioner 10, the heat exchange efficiency of the indoor heat exchanger 200 and the outdoor heat exchanger 400 may be lowered.

The air conditioner (10) according to the present invention may include an oil separator (500) for separating oil from a mixture of refrigerant and oil discharged from the compressor (100).

The oil separator 500 may be configured to separate oil from a refrigerant / oil mixture discharged from the compressor 100 and supply the oil to the compressor 100 again. The refrigerant separated in the mixer introduced into the oil separator 500 can circulate through the refrigerant cycle including the indoor heat exchanger 200 and the outdoor heat exchanger 400.

For example, the mixer discharged from the compressor 100 may be supplied to the oil separator 500 through the supply passage 105. The liquid oil separated in the oil separator 500 is supplied to the compressor 100 through the recovery flow path 505 and the gaseous refrigerant separated in the oil separator 500 can circulate in the refrigerant cycle.

Meanwhile, the indoor unit I includes an air inlet for sucking outside air and an air outlet for discharging the sucked air to the outside, and the discharge range of the air can be determined according to the shape of the air outlet.

The structure of the indoor unit I for ensuring the maximum discharge range of the air discharged from the indoor unit I will be described below with reference to the other drawings.

3 is a longitudinal sectional view showing the indoor unit shown in Fig.

Referring to FIG. 3, the indoor unit I of the air conditioner according to the present invention includes an air inlet 220 through which external air flows, an indoor heat exchanger 200 that exchanges heat between the introduced external air and the refrigerant, And an indoor fan 210 for sucking outside air through the air inlet 220 and discharging the outside air toward the air outlet 230.

The air outlet 230 may be defined by a vane 240 formed to open and close the air outlet 230 and a discharge guide 250 provided on the opposite side of the vane 240 and having a predetermined curvature . The discharge guide 250 may be formed to guide the air discharged from the indoor unit I toward the outer side in the width direction or the outer side in the longitudinal direction of the indoor unit I.

The discharge guide 250 may be provided in the width direction or in the longitudinal direction of the indoor unit I as compared with the vane 240. The discharge guide 250 may be provided in the width direction or in the longitudinal direction of the indoor unit I as compared with the vane 240 in a state where the vane 240 opens the air discharge opening 230 .

At this time, the discharge guide 250 may be formed to have a different curvature along the longitudinal direction of the air discharge opening 230.

That is, the discharge guide 250 may have a plurality of different curvatures along the longitudinal direction of the air outlet 230. This is to change the resistance of the flow path of air discharged according to the curvature of the discharge guide 250.

When the curvature of the discharge guide 250 is large (that is, when the curvature radius is small), the flow path resistance becomes large. When the curvature of the discharge guide 250 is small (that is, when the curvature radius is large), the flow path resistance becomes small. In other words, the smaller the flow path resistance, the greater the flow rate and the flow rate of the air to be discharged.

For example, the indoor unit I according to the present invention can be formed as a buried indoor unit buried in a ceiling. Accordingly, the air inlet 220 and the air outlet 230 may be formed on the lower surface of the indoor unit I.

Specifically, the indoor unit I includes main bodies 201 and 202 for forming an outer appearance, and the main bodies 201 and 202 include an upper main body 201 and a lower main body 201 coupled to the lower main body 201 202 may be provided.

The indoor fan 210 may be provided inside the upper body 201 and may be formed as a centrifugal fan. A motor 211 for driving the indoor fan 210 may be installed at one side of the indoor fan 210.

In addition, one or more indoor heat exchangers 200 may be disposed in the vicinity of the indoor fan 210 inside the upper body 201.

The air inlet 220 and the air outlet 230 may be provided in the lower body 202.

Specifically, the air inlet 220 is provided at a central portion of the lower main body 202, and at least one air outlet 230 may be provided at a peripheral portion of the lower main body 202.

The vane 240 is rotatably provided on the lower main body 202 and may be formed to open or close the air outlet 230. That is, the vane 240 may be vertically rotatable with respect to the lower main body 202 at one side of the air outlet 230.

In particular, the discharge angle in the vertical direction of the air discharged from the air discharge port 230 can be determined according to the opening angle of the vane 240.

For example, when the vane 240 continuously rotates in the up-and-down direction and air is discharged through the air outlet 230, the discharge angle of the discharged air can continuously change in the vertical direction.

3, the external air introduced through the air inlet 220 of the indoor unit I by the operation of the indoor fan 210 is heat-exchanged with the refrigerant of the indoor heat exchanger 200, And can be discharged through the discharge port 230.

Meanwhile, the air outlet 230 may be partitioned by the vane 240 and the discharge guide 250 described above.

The discharge guide 250 may be provided on the lower main body 202 opposite to the vane 240. That is, the discharge guide 250 may be disposed on the opposite side of the vane 240 in a state where the vane 240 is open, and may be formed to partition the air discharge port together with the vane 240.

In addition, the discharge guide 250 may be formed to be bent at a predetermined curvature toward the opposite direction of the air inlet 220.

That is, in the embodiment shown in FIG. 3, the discharge guide 250 may be formed to be bent toward the outside in the width direction of the indoor unit I. This is to prevent the air discharged through the air outlet 230 from flowing into the air inlet 220 again.

At this time, depending on the curvature of the discharge guide 250, the flow path resistance of the air discharged through the air discharge port 230 may be changed, and the flow velocity and the flow rate of the discharged air may be changed have.

Hereinafter, the shape of the discharge guide 250 and the change in the flow path resistance thereof will be described with reference to other drawings.

Fig. 4 is a bottom view of the indoor unit, and Figs. 5 (a) and 5 (b) are vertical sectional views of different positions along the longitudinal direction of the air outlet in the indoor unit shown in Fig. 5 (a) is a longitudinal sectional view taken along the line A-A in Fig. 4, and Fig. 5 (b) is a longitudinal sectional view taken along the line B-B in Fig.

For convenience of explanation, "W" is defined in the width direction and "L" is defined in the length direction in Fig.

Referring to FIG. 4, an air inlet 220 may be formed at the center of the bottom of the indoor unit I. For example, the air inlet 220 may be formed in a substantially rectangular shape.

In addition, at least one air outlet 230 may be formed in the periphery of the bottom surface of the indoor unit I. For example, the air outlet 230 may have a predetermined length, and a plurality of the air outlet 220 may be formed around the air inlet 220.

The air outlet 230 may be selectively opened and closed by the vane 240 described above. That is, the vane 240 may have a length corresponding to the length of the air outlet 230.

5, the vane 240 may include a hinge shaft 241 that is rotatable with respect to the lower main body 202. The air outlet 230 may be defined by the vane 240 and the discharge guide 250 when the vane 240 is opened.

At this time, the curvature of the discharge guide 250 may be smaller at both longitudinal ends of the air outlet 230 than the longitudinal center of the air outlet 230.

That is, the discharge guide 250 may have a smaller curvature at both longitudinal ends of the discharge guide 250 than the longitudinal center of the discharge guide 250. In other words, the discharge guide 250 may have a larger radius of curvature at both longitudinal ends of the discharge guide 250 than the longitudinal center of the discharge guide 250.

5 (a) and 5 (b) show the difference in curvature at the longitudinal center portion and both end portions of the discharge guide 250. As shown in FIG. 5, the discharge guide 250 may have a smaller curvature at both ends in the longitudinal direction than in the longitudinal center portion.

Therefore, the flow resistance at both ends in the longitudinal direction of the air discharge port 230 is smaller than the longitudinal center portion of the air discharge port 230, so that the flow velocity and the flow rate of the discharged air can be increased.

3 and 4, the ejection guide 250 may include a curvature change start point (for example, a curvature change start point) at a predetermined point from the longitudinal center of the ejection guide 250 toward both longitudinal ends of the ejection guide 250 255).

That is, the discharge guide 250 may have a first curvature (or a first radius of curvature) from the longitudinal center of the discharge guide 250 to the curvature change starting point 255.

The discharge guide 250 may have a second curvature smaller than the first curvature (or a second curvature radius larger than the first curvature radius) from the curvature change start point 255 to both longitudinal ends of the discharge guide 250 As shown in Fig.

Specifically, the curvature of the discharge guide 250 outside the longitudinal direction of the discharge guide 250 may be smaller than the curvature change starting point 255 of the discharge guide 250.

Therefore, the flow resistance of the discharged air at the both ends in the longitudinal direction is smaller than that at the longitudinal center portion of the air discharge port 230, so that the flow velocity and flow rate of the discharged air at both ends of the air discharge port 230 Can be increased.

Further, the curvature of the discharge guide 250 on the outer side in the longitudinal direction of the discharge guide 250 may be gradually reduced toward both ends in the longitudinal direction of the discharge guide 250, based on the curvature change starting point 255.

That is, the second curvature from the curvature change starting point 255 to both ends in the longitudinal direction of the discharge guide 250 may be formed so as to gradually decrease toward both ends in the longitudinal direction of the discharge guide 250.

Accordingly, the flow resistance gradually decreases from the curvature change starting point 255 to both ends in the longitudinal direction of the discharge guide 250, so that the flow velocity and the flow rate of the discharge air can be gradually increased.

Referring to FIG. 4, the air inlet 220 may be formed inside the inlet frame 221, which is divided into a substantially rectangular shape. The inlet frame 221 may be integrally formed with the lower body 202 or may be assembled with the lower body 202.

The air outlet 230 may be provided at a position corresponding to each side of the inlet frame 221. In the illustrated embodiment, the air outlet 230 may be four.

At this time, the corners 229 of the inlet frame 221 may be formed as curved lines having predetermined radius of curvature.

In other words, the corners 229 of the inlet frame 221 corresponding to both ends of the air discharge port 220 or the discharge guide 250 in the longitudinal direction may be formed into a curve having a preset radius of curvature.

The distance from the corner portion 229 of the inlet frame 221 to the air outlet 220 is larger than the distance from the side of the inlet frame 221 to the air outlet port 220. [ (220).

This is to prevent the air discharged from both end portions in the longitudinal direction of the air outlet 230 from flowing into the air inlet 220 again due to the decrease of the passage resistance.

More specifically, referring to the arrows shown in FIG. 5, compared with the lengthwise center portion (FIG. 5 (a)) of the air outlet 230, The discharge air can be relatively offset toward the air inlet 220 due to the decrease of the flow path resistance.

At this time, due to the shape of the corner portion 229 of the inlet frame 221 corresponding to both longitudinal ends of the air outlet 230, the air discharged from both ends in the longitudinal direction of the air outlet 230 returns to the And can be prevented from being sucked into the air inlet 220.

The position of the curve starting point 225 at which the curve starts in the inlet frame 221 may correspond to the position of the curvature change starting point 255. That is, the curve starting point 225 may be located on the line extending in the width direction or the longitudinal direction of the indoor unit I and the curvature change starting point 255.

Concretely, the curvature change start point 255 provided in the air outlet port 230 located on the opposite side of the indoor unit I in the width direction W or the length direction L corresponds to the width direction W of the indoor unit or the length The curved starting points 225 of the inlet frame 221 positioned opposite to each other in the direction L may be located on the same line.

More specifically, the curvature change start points 255 provided in the air discharge ports 230 located opposite to each other in the width direction W of the indoor unit I are located opposite to each other in the width direction W of the indoor unit The curved starting point 225 of the inlet frame 221 may be located on the first same line L1.

The curvature change start points 255 provided in the air discharge ports 230 positioned opposite to each other in the longitudinal direction L of the indoor unit I are positioned opposite to each other in the longitudinal direction L of the indoor unit I The curved starting point 225 of the inlet frame 221 may be located on the second same line L2.

At this time, the first same line L1 and the second same line L2 may extend perpendicular to each other.

The distance between the air outlet 230 and the air inlet 220 at both longitudinal ends of the air outlet 230 is greater than the distance between the air outlet 230 and the air Inlet 220 may be greater than the distance between inlet 220 and inlet 220. [

The distance between the air outlet 230 and the air inlet 220 gradually increases from the position corresponding to the curvature change starting point 255 at which the decrease in the flow path resistance starts to the both ends in the longitudinal direction of the air outlet 230 .

As described above, due to the curved structure of the corner 229 of the inlet frame 221, the air discharged from the air outlet 230 can be prevented from flowing back into the air inlet 220.

The shape of the vane 240 for reducing the flow path resistance at both ends of the air outlet 230 will be described below with reference to other drawings.

6 is a view showing a part of the structure of an indoor unit according to the present invention. Specifically, FIG. 6 is a side view of a vane for illustrating the shape of the vane described above.

Referring to Figures 3 and 6 together, the vane 240 may have a predetermined length l. The length (1) of the vane 240 may correspond to the length of the air outlet 230. When a plurality of air discharge openings 230 are formed in the indoor unit I, the vanes 240 may be provided with a plurality of openings for selectively opening and closing the respective air discharge openings 230.

At this time, the vane 240 may be formed such that its longitudinal center 245 is thicker than the longitudinally opposite ends 246. The longitudinal center 245 of the vane 240 corresponds to the longitudinal center of the air outlet 230 and the longitudinally opposite ends 246 of the vane 240 correspond to the longitudinal direction of the air outlet 230 End portion.

Therefore, the width of the longitudinal center of the air outlet 230 defined by the vane 240 may be narrower than the width of both ends in the longitudinal direction.

This is to make the passage resistance at both longitudinal ends of the air outlet 230 smaller than the passage resistance at the center in the longitudinal direction.

The thickness of the vane 240 is greater than the longitudinal center 245 of the vane 240 so that the width of the air outlet 230 increases from the longitudinal center of the air outlet 230 toward the longitudinal end. To the both ends in the longitudinal direction of the vane 240.

Accordingly, the width of the air outlet 230 may gradually increase from the longitudinal center of the air outlet 230 toward the longitudinal end, and the flow passage resistance of the air outlet 230 may be greater than the length of the air outlet 230 It can be made smaller gradually from the direction center to the longitudinal direction end.

More specifically, the vane 240 may have a first surface 241 facing the air outlet 230 and a second surface 242 facing the first surface 241.

The first surface 241 may be disposed so that the vane 240 faces the air outlet 230 with the air outlet 230 opened. The first surface 241 may be disposed so that the vane 240 faces the outside of the indoor unit I with the air outlet 230 closed.

The second surface 242 may be disposed opposite the first surface 241. That is, the thickness of the vane 240 can be determined by the first surface 241 and the second surface 242.

At this time, the second surface 242 may be formed in a planar shape. Alternatively, the first surface 241 may be oriented toward the longitudinally opposite ends 246 of the vane 240 at the longitudinal center 245 of the vane 240 to be closer to the second surface 242 It can be inclined.

That is, the first surface 241 may be formed to be inclined with respect to the second surface 242 in a predetermined angle. Specifically, the first surface 241 may be inclined toward the second surface 242 with respect to the longitudinal center 245 of the first surface 241.

The width of the air outlet 230 corresponding to the longitudinal center 245 of the vane 240 is smaller than the width of the air outlet 230 corresponding to both longitudinal ends 246 of the vane 240 .

The air outlet 230 may be formed so that the width of the air outlet 230 gradually increases toward both ends of the air outlet 230 in the longitudinal direction of the air outlet 230, .

Hereinafter, with reference to other drawings, a description will be given of the feature that the air discharge range is widened in the indoor unit according to the present invention as compared with the conventional indoor unit.

7 is a view for explaining a difference in air discharge range in a conventional indoor unit and an indoor unit according to the present invention. Specifically, Fig. 7 (a) shows a range in which air is discharged from a conventional indoor unit, and Fig. 7 (b) shows a range in which air is discharged from the indoor unit according to the present invention.

7 (a), the conventional indoor unit I 'may be formed to cooperate with the indoor space S, and may be formed to discharge the air conditioned in the indoor space S.

At this time, as shown by the arrow in FIG. 7A, the air is discharged from the indoor unit I 'to the corner portion S' of the indoor space S corresponding to the corner portion C of the indoor unit I ' It can be seen that the air is not reached.

That is, according to the conventional indoor unit I ', since there is no or small flow of air toward the corner portion C of the indoor unit I', the indoor space I 'corresponding to the corner portion C of the indoor unit I' S have a temperature deviation from the other parts.

Therefore, when the conventional indoor unit I 'is driven, a temperature deviation may be generated in the indoor space S in each region.

Further, in order to remove the temperature deviation of the indoor space S in the conventional indoor unit I ', it is necessary to have a configuration such as a separate wind direction adjusting blade for adjusting the air discharge direction in the other lateral direction or width direction Do. This complicates the structure of the product and may cause an increase in the manufacturing cost of the product.

Referring to FIG. 7 (b), the indoor unit I according to the present invention may be formed to minimize the temperature deviation of the indoor space S in each region.

Specifically, according to the present invention, as shown by the arrow in FIG. 7 (b), the indoor unit I is extended to the corner S 'of the indoor space S corresponding to the corner portion C of the indoor unit I, Can be reached.

Accordingly, when the indoor unit I according to the present invention is driven, the temperature variation in each room S can be minimized.

In addition, according to the present invention, since a configuration such as a separate air conditioner for discharging air to the corner portion C of the indoor unit I is unnecessary, the structure of the product can be simplified and the manufacturing cost can be reduced.

That is, according to the present invention, the air flow toward the corner portion C of the indoor unit I can be relatively increased through the shape of the vane 240 and the shape of the discharge guide 250 described above.

The foregoing description of the preferred embodiments of the present invention has been presented for purposes of illustration and various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention, And additions should be considered as falling within the scope of the following claims.

100 compressor 200 indoor heat exchanger
220 Air inlet 230 Air outlet
240 Vane 250 Discharge Guide
300 Expansion Valve 400 Outdoor Heat Exchanger
500 Oil separator 600 Euro switching valve

Claims (15)

An air inlet through which outside air flows;
An indoor heat exchanger for exchanging heat between the introduced outside air and the refrigerant;
An air discharge port through which the heat exchanged air with the refrigerant of the indoor heat exchanger is discharged;
And an indoor fan configured to suck outside air through the air inlet and discharge the air toward the air outlet,
Wherein the air discharge port is defined by a vane formed to open and close the air discharge port and a discharge guide provided on the opposite side of the vane and extending over the entire length of the air discharge port and having a predetermined curvature,
The discharge guide is formed to be bent toward the outside in the width direction of the indoor unit,
Wherein the discharge guide has a predetermined curvature throughout the longitudinal direction of the discharge guide and has a plurality of different curvatures along the longitudinal direction of the discharge port, The curvature of the discharge guide is small,
Wherein the longitudinal center of the vane corresponds to the longitudinal center of the air outlet and both longitudinal ends of the vane correspond to both longitudinal ends of the air outlet and the thickness of the center in the longitudinal direction of the vane corresponds to the longitudinal direction of the vane And is thicker than the thickness of both end portions. delete The method according to claim 1,
Wherein the ejection guide has a curvature change start point at a predetermined point from the longitudinal center of the ejection guide toward both longitudinal ends of the ejection guide,
Wherein the curvature of the discharge guide in the longitudinal direction is smaller than the curvature of the discharge guide in the longitudinal direction of the discharge guide. The method of claim 3,
Wherein the curvature of the discharge guide in the longitudinal direction is gradually reduced toward both ends in the longitudinal direction of the discharge guide based on the curvature change start point. The method of claim 3,
The air inlet is formed inside the inlet frame which is divided into a substantially rectangular shape,
Wherein the air outlet is provided at a position corresponding to each side of the inlet frame,
Wherein the corners of the inlet frame are formed in a curved line having a predetermined radius of curvature. 6. The method of claim 5,
Wherein a position of a start point of a curve at which the curved line starts corresponds to a position of the curvature change starting point. The method according to claim 6,
The curvature start point of the air outlet port located on the side opposite to the width direction or the longitudinal direction of the indoor unit is located on the same line as the curved start point of the inlet frame located opposite to each other in the width direction or the longitudinal direction of the indoor unit Wherein the air conditioner is an indoor unit of an air conditioner. delete The method according to claim 1,
Characterized in that the thickness of the vane is gradually thinner from the longitudinal center of the vane to both ends in the longitudinal direction of the vane so that the width of the air outlet increases from the longitudinal center of the air outlet to the longitudinal end thereof The indoor unit of the air conditioner. The method according to claim 1,
Wherein the vane has a first surface facing the air discharge port side and two surfaces facing the first surface,
Wherein the first surface is inclined to approach the second surface in the longitudinal center of the vane toward both longitudinal ends of the vane. An outdoor unit having an outdoor fan at one side of the outdoor heat exchanger; And
An indoor heat exchanger for exchanging heat between the refrigerant and the room air; and an indoor unit having an indoor fan at one side of the indoor heat exchanger,
The indoor unit includes:
An air inlet through which outside air flows; And
A plurality of vanes which are provided around the air inlet and which are arranged on opposite sides of the vane and which are defined by a discharge guide extending over the entire length of the air outlet and having a predetermined curvature, And a discharge port,
The discharge guide is formed to be bent toward the outside in the width direction of the indoor unit,
Wherein the discharge guide has a predetermined curvature throughout the longitudinal direction of the discharge guide and is formed to have a different curvature along the longitudinal direction of the discharge port, The curvature of the discharge guide is small,
The center of the vane in the longitudinal direction of the vane corresponds to the longitudinal center of the air outlet and both longitudinal ends of the vane correspond to both longitudinal ends of the air outlet, Wherein the thickness of each of the end portions is thicker than that of both end portions. 12. The method of claim 11,
Wherein the ejection guide has a curvature change start point at a predetermined point from the longitudinal center of the ejection guide toward both longitudinal ends of the ejection guide,
Wherein the discharge guide has a first curvature from the center of the longitudinal direction to the curvature change starting point and has a second curvature smaller than the first curvature from the curvature change starting point to both longitudinal ends of the discharge guide. Air conditioner. 13. The method of claim 12,
Wherein the second curvature gradually decreases from the curvature change starting point toward both ends in the longitudinal direction of the discharge guide. 13. The method of claim 12,
A plurality of the air inlets are formed in a substantially rectangular inlet frame, the air outlets are provided at positions corresponding to the respective sides of the inlet frame,
Wherein the corners of the inlet frame are formed with curves having predetermined curvature radii, and a position of a curved starting point at which the curved line starts corresponds to a position of the curvature changing starting point. 12. The method of claim 11,
Characterized in that the thickness of the vane is gradually thinner from the longitudinal center of the vane to both ends in the longitudinal direction of the vane so that the width of the air outlet increases from the longitudinal center of the air outlet to the longitudinal end thereof Air conditioning system.
KR1020160002044A 2016-01-07 2016-01-07 Indoor unit and Air conditioner having it KR101785670B1 (en)

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KR101785670B1 true KR101785670B1 (en) 2017-11-06

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003294303A (en) * 2002-04-01 2003-10-15 Mitsubishi Heavy Ind Ltd Wind direction control plate, guide plate, indoor unit, and air conditioner
KR100453241B1 (en) 2002-10-08 2004-10-15 삼성전자주식회사 Ceiling-mounted cassette type air conditioner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003294303A (en) * 2002-04-01 2003-10-15 Mitsubishi Heavy Ind Ltd Wind direction control plate, guide plate, indoor unit, and air conditioner
KR100453241B1 (en) 2002-10-08 2004-10-15 삼성전자주식회사 Ceiling-mounted cassette type air conditioner

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